From 996872ea94c7911ec4b962f9813222816c2ca28c Mon Sep 17 00:00:00 2001 From: Robert Jackson Date: Tue, 8 Apr 2014 09:39:07 -0400 Subject: [PATCH] Add Ember 1.6.0-beta.2. Original source: http://emberjs.com/builds/#/tagged --- .../libs/ember.js/1.6.0-beta.2/ember.debug.js | 46436 ++++++++++++++++ ajax/libs/ember.js/1.6.0-beta.2/ember.js | 46436 ++++++++++++++++ ajax/libs/ember.js/1.6.0-beta.2/ember.min.js | 20 + ajax/libs/ember.js/1.6.0-beta.2/ember.prod.js | 45993 +++++++++++++++ 4 files changed, 138885 insertions(+) create mode 100644 ajax/libs/ember.js/1.6.0-beta.2/ember.debug.js create mode 100644 ajax/libs/ember.js/1.6.0-beta.2/ember.js create mode 100644 ajax/libs/ember.js/1.6.0-beta.2/ember.min.js create mode 100644 ajax/libs/ember.js/1.6.0-beta.2/ember.prod.js diff --git a/ajax/libs/ember.js/1.6.0-beta.2/ember.debug.js b/ajax/libs/ember.js/1.6.0-beta.2/ember.debug.js new file mode 100644 index 000000000..fec1d8284 --- /dev/null +++ b/ajax/libs/ember.js/1.6.0-beta.2/ember.debug.js @@ -0,0 +1,46436 @@ +/*! + * @overview Ember - JavaScript Application Framework + * @copyright Copyright 2011-2014 Tilde Inc. and contributors + * Portions Copyright 2006-2011 Strobe Inc. + * Portions Copyright 2008-2011 Apple Inc. All rights reserved. + * @license Licensed under MIT license + * See https://raw.github.com/emberjs/ember.js/master/LICENSE + * @version 1.6.0-beta.2 + */ + + +(function() { +var define, requireModule, require, requirejs, Ember; + +(function() { + Ember = this.Ember = this.Ember || {}; + if (typeof Ember === 'undefined') { Ember = {} }; + + if (typeof Ember.__loader === 'undefined') { + var registry = {}, seen = {}; + + define = function(name, deps, callback) { + registry[name] = { deps: deps, callback: callback }; + }; + + requirejs = require = requireModule = function(name) { + if (seen.hasOwnProperty(name)) { return seen[name]; } + seen[name] = {}; + + if (!registry[name]) { + throw new Error("Could not find module " + name); + } + + var mod = registry[name], + deps = mod.deps, + callback = mod.callback, + reified = [], + exports; + + for (var i=0, l=deps.length; i\s*\(([^\)]+)\)/gm, '{anonymous}($1)').split('\n'); + stack.shift(); + } else { + // Firefox + stack = error.stack.replace(/(?:\n@:0)?\s+$/m, ''). + replace(/^\(/gm, '{anonymous}(').split('\n'); + } + + stackStr = "\n " + stack.slice(2).join("\n "); + message = message + stackStr; + } + + Logger.warn("DEPRECATION: "+message); + }; + + + + /** + Alias an old, deprecated method with its new counterpart. + + Display a deprecation warning with the provided message and a stack trace + (Chrome and Firefox only) when the assigned method is called. + + Ember build tools will not remove calls to `Ember.deprecateFunc()`, though + no warnings will be shown in production. + + ```javascript + Ember.oldMethod = Ember.deprecateFunc("Please use the new, updated method", Ember.newMethod); + ``` + + @method deprecateFunc + @param {String} message A description of the deprecation. + @param {Function} func The new function called to replace its deprecated counterpart. + @return {Function} a new function that wrapped the original function with a deprecation warning + */ + Ember.deprecateFunc = function(message, func) { + return function() { + Ember.deprecate(message); + return func.apply(this, arguments); + }; + }; + + + /** + Run a function meant for debugging. Ember build tools will remove any calls to + `Ember.runInDebug()` when doing a production build. + + ```javascript + Ember.runInDebug( function() { + Ember.Handlebars.EachView.reopen({ + didInsertElement: function() { + console.log("I'm happy"); + } + }); + }); + ``` + + @method runInDebug + @param {Function} func The function to be executed. + */ + Ember.runInDebug = function(func) { + func() + }; + + // Inform the developer about the Ember Inspector if not installed. + if (!Ember.testing) { + var isFirefox = typeof InstallTrigger !== 'undefined'; + var isChrome = !!window.chrome && !window.opera; + + if (typeof window !== 'undefined' && (isFirefox || isChrome) && window.addEventListener) { + window.addEventListener("load", function() { + if (document.documentElement && document.documentElement.dataset && !document.documentElement.dataset.emberExtension) { + var downloadURL; + + if(isChrome) { + downloadURL = 'https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi'; + } else if(isFirefox) { + downloadURL = 'https://addons.mozilla.org/en-US/firefox/addon/ember-inspector/'; + } + + Ember.debug('For more advanced debugging, install the Ember Inspector from ' + downloadURL); + } + }, false); + } + } + }); +})(); + +(function() { +define("ember-metal/array", + ["exports"], + function(__exports__) { + "use strict"; + /*jshint newcap:false*/ + /** + @module ember-metal + */ + + var ArrayPrototype = Array.prototype; + + // NOTE: There is a bug in jshint that doesn't recognize `Object()` without `new` + // as being ok unless both `newcap:false` and not `use strict`. + // https://github.com/jshint/jshint/issues/392 + + // Testing this is not ideal, but we want to use native functions + // if available, but not to use versions created by libraries like Prototype + var isNativeFunc = function(func) { + // This should probably work in all browsers likely to have ES5 array methods + return func && Function.prototype.toString.call(func).indexOf('[native code]') > -1; + }; + + // From: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/map + var map = isNativeFunc(ArrayPrototype.map) ? ArrayPrototype.map : function(fun /*, thisp */) { + //"use strict"; + + if (this === void 0 || this === null) { + throw new TypeError(); + } + + var t = Object(this); + var len = t.length >>> 0; + if (typeof fun !== "function") { + throw new TypeError(); + } + + var res = new Array(len); + var thisp = arguments[1]; + for (var i = 0; i < len; i++) { + if (i in t) { + res[i] = fun.call(thisp, t[i], i, t); + } + } + + return res; + }; + + // From: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/foreach + var forEach = isNativeFunc(ArrayPrototype.forEach) ? ArrayPrototype.forEach : function(fun /*, thisp */) { + //"use strict"; + + if (this === void 0 || this === null) { + throw new TypeError(); + } + + var t = Object(this); + var len = t.length >>> 0; + if (typeof fun !== "function") { + throw new TypeError(); + } + + var thisp = arguments[1]; + for (var i = 0; i < len; i++) { + if (i in t) { + fun.call(thisp, t[i], i, t); + } + } + }; + + var indexOf = isNativeFunc(ArrayPrototype.indexOf) ? ArrayPrototype.indexOf : function (obj, fromIndex) { + if (fromIndex === null || fromIndex === undefined) { fromIndex = 0; } + else if (fromIndex < 0) { fromIndex = Math.max(0, this.length + fromIndex); } + for (var i = fromIndex, j = this.length; i < j; i++) { + if (this[i] === obj) { return i; } + } + return -1; + }; + + var filter = isNativeFunc(ArrayPrototype.filter) ? ArrayPrototype.filter : function (fn, context) { + var i, + value, + result = [], + length = this.length; + + for (i = 0; i < length; i++) { + if (this.hasOwnProperty(i)) { + value = this[i]; + if (fn.call(context, value, i, this)) { + result.push(value); + } + } + } + return result; + }; + + + if (Ember.SHIM_ES5) { + if (!ArrayPrototype.map) { + ArrayPrototype.map = map; + } + + if (!ArrayPrototype.forEach) { + ArrayPrototype.forEach = forEach; + } + + if (!ArrayPrototype.filter) { + ArrayPrototype.filter = filter; + } + + if (!ArrayPrototype.indexOf) { + ArrayPrototype.indexOf = indexOf; + } + } + + /** + Array polyfills to support ES5 features in older browsers. + + @namespace Ember + @property ArrayPolyfills + */ + __exports__.map = map; + __exports__.forEach = forEach; + __exports__.filter = filter; + __exports__.indexOf = indexOf; + }); +define("ember-metal/binding", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/map","ember-metal/observer","ember-metal/run_loop","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.Logger, Ember.LOG_BINDINGS, assert + var get = __dependency2__.get; + var set = __dependency3__.set; + var trySet = __dependency3__.trySet; + var guidFor = __dependency4__.guidFor; + var Map = __dependency5__.Map; + var addObserver = __dependency6__.addObserver; + var removeObserver = __dependency6__.removeObserver; + var _suspendObserver = __dependency6__._suspendObserver; + var run = __dependency7__["default"]; + + // ES6TODO: where is Ember.lookup defined? + /** + @module ember-metal + */ + + // .......................................................... + // CONSTANTS + // + + /** + Debug parameter you can turn on. This will log all bindings that fire to + the console. This should be disabled in production code. Note that you + can also enable this from the console or temporarily. + + @property LOG_BINDINGS + @for Ember + @type Boolean + @default false + */ + Ember.LOG_BINDINGS = false || !!Ember.ENV.LOG_BINDINGS; + + var IS_GLOBAL = /^([A-Z$]|([0-9][A-Z$]))/; + + /** + Returns true if the provided path is global (e.g., `MyApp.fooController.bar`) + instead of local (`foo.bar.baz`). + + @method isGlobalPath + @for Ember + @private + @param {String} path + @return Boolean + */ + function isGlobalPath(path) { + return IS_GLOBAL.test(path); + }; + + function getWithGlobals(obj, path) { + return get(isGlobalPath(path) ? Ember.lookup : obj, path); + } + + // .......................................................... + // BINDING + // + + var Binding = function(toPath, fromPath) { + this._direction = 'fwd'; + this._from = fromPath; + this._to = toPath; + this._directionMap = Map.create(); + }; + + /** + @class Binding + @namespace Ember + */ + + Binding.prototype = { + /** + This copies the Binding so it can be connected to another object. + + @method copy + @return {Ember.Binding} `this` + */ + copy: function () { + var copy = new Binding(this._to, this._from); + if (this._oneWay) { copy._oneWay = true; } + return copy; + }, + + // .......................................................... + // CONFIG + // + + /** + This will set `from` property path to the specified value. It will not + attempt to resolve this property path to an actual object until you + connect the binding. + + The binding will search for the property path starting at the root object + you pass when you `connect()` the binding. It follows the same rules as + `get()` - see that method for more information. + + @method from + @param {String} path the property path to connect to + @return {Ember.Binding} `this` + */ + from: function(path) { + this._from = path; + return this; + }, + + /** + This will set the `to` property path to the specified value. It will not + attempt to resolve this property path to an actual object until you + connect the binding. + + The binding will search for the property path starting at the root object + you pass when you `connect()` the binding. It follows the same rules as + `get()` - see that method for more information. + + @method to + @param {String|Tuple} path A property path or tuple + @return {Ember.Binding} `this` + */ + to: function(path) { + this._to = path; + return this; + }, + + /** + Configures the binding as one way. A one-way binding will relay changes + on the `from` side to the `to` side, but not the other way around. This + means that if you change the `to` side directly, the `from` side may have + a different value. + + @method oneWay + @return {Ember.Binding} `this` + */ + oneWay: function() { + this._oneWay = true; + return this; + }, + + /** + @method toString + @return {String} string representation of binding + */ + toString: function() { + var oneWay = this._oneWay ? '[oneWay]' : ''; + return "Ember.Binding<" + guidFor(this) + ">(" + this._from + " -> " + this._to + ")" + oneWay; + }, + + // .......................................................... + // CONNECT AND SYNC + // + + /** + Attempts to connect this binding instance so that it can receive and relay + changes. This method will raise an exception if you have not set the + from/to properties yet. + + @method connect + @param {Object} obj The root object for this binding. + @return {Ember.Binding} `this` + */ + connect: function(obj) { + Ember.assert('Must pass a valid object to Ember.Binding.connect()', !!obj); + + var fromPath = this._from, toPath = this._to; + trySet(obj, toPath, getWithGlobals(obj, fromPath)); + + // add an observer on the object to be notified when the binding should be updated + addObserver(obj, fromPath, this, this.fromDidChange); + + // if the binding is a two-way binding, also set up an observer on the target + if (!this._oneWay) { addObserver(obj, toPath, this, this.toDidChange); } + + this._readyToSync = true; + + return this; + }, + + /** + Disconnects the binding instance. Changes will no longer be relayed. You + will not usually need to call this method. + + @method disconnect + @param {Object} obj The root object you passed when connecting the binding. + @return {Ember.Binding} `this` + */ + disconnect: function(obj) { + Ember.assert('Must pass a valid object to Ember.Binding.disconnect()', !!obj); + + var twoWay = !this._oneWay; + + // remove an observer on the object so we're no longer notified of + // changes that should update bindings. + removeObserver(obj, this._from, this, this.fromDidChange); + + // if the binding is two-way, remove the observer from the target as well + if (twoWay) { removeObserver(obj, this._to, this, this.toDidChange); } + + this._readyToSync = false; // disable scheduled syncs... + return this; + }, + + // .......................................................... + // PRIVATE + // + + /* called when the from side changes */ + fromDidChange: function(target) { + this._scheduleSync(target, 'fwd'); + }, + + /* called when the to side changes */ + toDidChange: function(target) { + this._scheduleSync(target, 'back'); + }, + + _scheduleSync: function(obj, dir) { + var directionMap = this._directionMap; + var existingDir = directionMap.get(obj); + + // if we haven't scheduled the binding yet, schedule it + if (!existingDir) { + run.schedule('sync', this, this._sync, obj); + directionMap.set(obj, dir); + } + + // If both a 'back' and 'fwd' sync have been scheduled on the same object, + // default to a 'fwd' sync so that it remains deterministic. + if (existingDir === 'back' && dir === 'fwd') { + directionMap.set(obj, 'fwd'); + } + }, + + _sync: function(obj) { + var log = Ember.LOG_BINDINGS; + + // don't synchronize destroyed objects or disconnected bindings + if (obj.isDestroyed || !this._readyToSync) { return; } + + // get the direction of the binding for the object we are + // synchronizing from + var directionMap = this._directionMap; + var direction = directionMap.get(obj); + + var fromPath = this._from, toPath = this._to; + + directionMap.remove(obj); + + // if we're synchronizing from the remote object... + if (direction === 'fwd') { + var fromValue = getWithGlobals(obj, this._from); + if (log) { + Ember.Logger.log(' ', this.toString(), '->', fromValue, obj); + } + if (this._oneWay) { + trySet(obj, toPath, fromValue); + } else { + _suspendObserver(obj, toPath, this, this.toDidChange, function () { + trySet(obj, toPath, fromValue); + }); + } + // if we're synchronizing *to* the remote object + } else if (direction === 'back') { + var toValue = get(obj, this._to); + if (log) { + Ember.Logger.log(' ', this.toString(), '<-', toValue, obj); + } + _suspendObserver(obj, fromPath, this, this.fromDidChange, function () { + trySet(isGlobalPath(fromPath) ? Ember.lookup : obj, fromPath, toValue); + }); + } + } + + }; + + function mixinProperties(to, from) { + for (var key in from) { + if (from.hasOwnProperty(key)) { + to[key] = from[key]; + } + } + } + + mixinProperties(Binding, { + + /* + See `Ember.Binding.from`. + + @method from + @static + */ + from: function() { + var C = this, binding = new C(); + return binding.from.apply(binding, arguments); + }, + + /* + See `Ember.Binding.to`. + + @method to + @static + */ + to: function() { + var C = this, binding = new C(); + return binding.to.apply(binding, arguments); + }, + + /** + Creates a new Binding instance and makes it apply in a single direction. + A one-way binding will relay changes on the `from` side object (supplied + as the `from` argument) the `to` side, but not the other way around. + This means that if you change the "to" side directly, the "from" side may have + a different value. + + See `Binding.oneWay`. + + @method oneWay + @param {String} from from path. + @param {Boolean} [flag] (Optional) passing nothing here will make the + binding `oneWay`. You can instead pass `false` to disable `oneWay`, making the + binding two way again. + @return {Ember.Binding} `this` + */ + oneWay: function(from, flag) { + var C = this, binding = new C(null, from); + return binding.oneWay(flag); + } + + }); + + /** + An `Ember.Binding` connects the properties of two objects so that whenever + the value of one property changes, the other property will be changed also. + + ## Automatic Creation of Bindings with `/^*Binding/`-named Properties + + You do not usually create Binding objects directly but instead describe + bindings in your class or object definition using automatic binding + detection. + + Properties ending in a `Binding` suffix will be converted to `Ember.Binding` + instances. The value of this property should be a string representing a path + to another object or a custom binding instanced created using Binding helpers + (see "One Way Bindings"): + + ``` + valueBinding: "MyApp.someController.title" + ``` + + This will create a binding from `MyApp.someController.title` to the `value` + property of your object instance automatically. Now the two values will be + kept in sync. + + ## One Way Bindings + + One especially useful binding customization you can use is the `oneWay()` + helper. This helper tells Ember that you are only interested in + receiving changes on the object you are binding from. For example, if you + are binding to a preference and you want to be notified if the preference + has changed, but your object will not be changing the preference itself, you + could do: + + ``` + bigTitlesBinding: Ember.Binding.oneWay("MyApp.preferencesController.bigTitles") + ``` + + This way if the value of `MyApp.preferencesController.bigTitles` changes the + `bigTitles` property of your object will change also. However, if you + change the value of your `bigTitles` property, it will not update the + `preferencesController`. + + One way bindings are almost twice as fast to setup and twice as fast to + execute because the binding only has to worry about changes to one side. + + You should consider using one way bindings anytime you have an object that + may be created frequently and you do not intend to change a property; only + to monitor it for changes (such as in the example above). + + ## Adding Bindings Manually + + All of the examples above show you how to configure a custom binding, but the + result of these customizations will be a binding template, not a fully active + Binding instance. The binding will actually become active only when you + instantiate the object the binding belongs to. It is useful however, to + understand what actually happens when the binding is activated. + + For a binding to function it must have at least a `from` property and a `to` + property. The `from` property path points to the object/key that you want to + bind from while the `to` path points to the object/key you want to bind to. + + When you define a custom binding, you are usually describing the property + you want to bind from (such as `MyApp.someController.value` in the examples + above). When your object is created, it will automatically assign the value + you want to bind `to` based on the name of your binding key. In the + examples above, during init, Ember objects will effectively call + something like this on your binding: + + ```javascript + binding = Ember.Binding.from(this.valueBinding).to("value"); + ``` + + This creates a new binding instance based on the template you provide, and + sets the to path to the `value` property of the new object. Now that the + binding is fully configured with a `from` and a `to`, it simply needs to be + connected to become active. This is done through the `connect()` method: + + ```javascript + binding.connect(this); + ``` + + Note that when you connect a binding you pass the object you want it to be + connected to. This object will be used as the root for both the from and + to side of the binding when inspecting relative paths. This allows the + binding to be automatically inherited by subclassed objects as well. + + Now that the binding is connected, it will observe both the from and to side + and relay changes. + + If you ever needed to do so (you almost never will, but it is useful to + understand this anyway), you could manually create an active binding by + using the `Ember.bind()` helper method. (This is the same method used by + to setup your bindings on objects): + + ```javascript + Ember.bind(MyApp.anotherObject, "value", "MyApp.someController.value"); + ``` + + Both of these code fragments have the same effect as doing the most friendly + form of binding creation like so: + + ```javascript + MyApp.anotherObject = Ember.Object.create({ + valueBinding: "MyApp.someController.value", + + // OTHER CODE FOR THIS OBJECT... + }); + ``` + + Ember's built in binding creation method makes it easy to automatically + create bindings for you. You should always use the highest-level APIs + available, even if you understand how it works underneath. + + @class Binding + @namespace Ember + @since Ember 0.9 + */ + // Ember.Binding = Binding; ES6TODO: where to put this? + + + /** + Global helper method to create a new binding. Just pass the root object + along with a `to` and `from` path to create and connect the binding. + + @method bind + @for Ember + @param {Object} obj The root object of the transform. + @param {String} to The path to the 'to' side of the binding. + Must be relative to obj. + @param {String} from The path to the 'from' side of the binding. + Must be relative to obj or a global path. + @return {Ember.Binding} binding instance + */ + function bind(obj, to, from) { + return new Binding(to, from).connect(obj); + }; + + /** + @method oneWay + @for Ember + @param {Object} obj The root object of the transform. + @param {String} to The path to the 'to' side of the binding. + Must be relative to obj. + @param {String} from The path to the 'from' side of the binding. + Must be relative to obj or a global path. + @return {Ember.Binding} binding instance + */ + function oneWay(obj, to, from) { + return new Binding(to, from).oneWay().connect(obj); + }; + + __exports__.Binding = Binding; + __exports__.bind = bind; + __exports__.oneWay = oneWay; + __exports__.isGlobalPath = isGlobalPath; + }); +define("ember-metal/chains", + ["ember-metal/core","ember-metal/property_get","ember-metal/utils","ember-metal/array","ember-metal/watch_key","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // warn, assert, etc; + var get = __dependency2__.get; + var normalizeTuple = __dependency2__.normalizeTuple; + var meta = __dependency3__.meta; + var META_KEY = __dependency3__.META_KEY; + var forEach = __dependency4__.forEach; + var watchKey = __dependency5__.watchKey; + var unwatchKey = __dependency5__.unwatchKey; + + var metaFor = meta, + warn = Ember.warn, + FIRST_KEY = /^([^\.]+)/; + + function firstKey(path) { + return path.match(FIRST_KEY)[0]; + } + + var pendingQueue = []; + + // attempts to add the pendingQueue chains again. If some of them end up + // back in the queue and reschedule is true, schedules a timeout to try + // again. + function flushPendingChains() { + if (pendingQueue.length === 0) { return; } // nothing to do + + var queue = pendingQueue; + pendingQueue = []; + + forEach.call(queue, function(q) { q[0].add(q[1]); }); + + warn('Watching an undefined global, Ember expects watched globals to be setup by the time the run loop is flushed, check for typos', pendingQueue.length === 0); + }; + + + function addChainWatcher(obj, keyName, node) { + if (!obj || ('object' !== typeof obj)) { return; } // nothing to do + + var m = metaFor(obj), nodes = m.chainWatchers; + + if (!m.hasOwnProperty('chainWatchers')) { + nodes = m.chainWatchers = {}; + } + + if (!nodes[keyName]) { nodes[keyName] = []; } + nodes[keyName].push(node); + watchKey(obj, keyName, m); + } + + function removeChainWatcher(obj, keyName, node) { + if (!obj || 'object' !== typeof obj) { return; } // nothing to do + + var m = obj[META_KEY]; + if (m && !m.hasOwnProperty('chainWatchers')) { return; } // nothing to do + + var nodes = m && m.chainWatchers; + + if (nodes && nodes[keyName]) { + nodes = nodes[keyName]; + for (var i = 0, l = nodes.length; i < l; i++) { + if (nodes[i] === node) { nodes.splice(i, 1); } + } + } + unwatchKey(obj, keyName, m); + }; + + // A ChainNode watches a single key on an object. If you provide a starting + // value for the key then the node won't actually watch it. For a root node + // pass null for parent and key and object for value. + function ChainNode(parent, key, value) { + this._parent = parent; + this._key = key; + + // _watching is true when calling get(this._parent, this._key) will + // return the value of this node. + // + // It is false for the root of a chain (because we have no parent) + // and for global paths (because the parent node is the object with + // the observer on it) + this._watching = value===undefined; + + this._value = value; + this._paths = {}; + if (this._watching) { + this._object = parent.value(); + if (this._object) { addChainWatcher(this._object, this._key, this); } + } + + // Special-case: the EachProxy relies on immediate evaluation to + // establish its observers. + // + // TODO: Replace this with an efficient callback that the EachProxy + // can implement. + if (this._parent && this._parent._key === '@each') { + this.value(); + } + }; + + var ChainNodePrototype = ChainNode.prototype; + + function lazyGet(obj, key) { + if (!obj) return undefined; + + var meta = obj[META_KEY]; + // check if object meant only to be a prototype + if (meta && meta.proto === obj) return undefined; + + if (key === "@each") return get(obj, key); + + // if a CP only return cached value + var desc = meta && meta.descs[key]; + if (desc && desc._cacheable) { + if (key in meta.cache) { + return meta.cache[key]; + } else { + return undefined; + } + } + + return get(obj, key); + } + + ChainNodePrototype.value = function() { + if (this._value === undefined && this._watching) { + var obj = this._parent.value(); + this._value = lazyGet(obj, this._key); + } + return this._value; + }; + + ChainNodePrototype.destroy = function() { + if (this._watching) { + var obj = this._object; + if (obj) { removeChainWatcher(obj, this._key, this); } + this._watching = false; // so future calls do nothing + } + }; + + // copies a top level object only + ChainNodePrototype.copy = function(obj) { + var ret = new ChainNode(null, null, obj), + paths = this._paths, path; + for (path in paths) { + if (paths[path] <= 0) { continue; } // this check will also catch non-number vals. + ret.add(path); + } + return ret; + }; + + // called on the root node of a chain to setup watchers on the specified + // path. + ChainNodePrototype.add = function(path) { + var obj, tuple, key, src, paths; + + paths = this._paths; + paths[path] = (paths[path] || 0) + 1; + + obj = this.value(); + tuple = normalizeTuple(obj, path); + + // the path was a local path + if (tuple[0] && tuple[0] === obj) { + path = tuple[1]; + key = firstKey(path); + path = path.slice(key.length+1); + + // global path, but object does not exist yet. + // put into a queue and try to connect later. + } else if (!tuple[0]) { + pendingQueue.push([this, path]); + tuple.length = 0; + return; + + // global path, and object already exists + } else { + src = tuple[0]; + key = path.slice(0, 0-(tuple[1].length+1)); + path = tuple[1]; + } + + tuple.length = 0; + this.chain(key, path, src); + }; + + // called on the root node of a chain to teardown watcher on the specified + // path + ChainNodePrototype.remove = function(path) { + var obj, tuple, key, src, paths; + + paths = this._paths; + if (paths[path] > 0) { paths[path]--; } + + obj = this.value(); + tuple = normalizeTuple(obj, path); + if (tuple[0] === obj) { + path = tuple[1]; + key = firstKey(path); + path = path.slice(key.length+1); + } else { + src = tuple[0]; + key = path.slice(0, 0-(tuple[1].length+1)); + path = tuple[1]; + } + + tuple.length = 0; + this.unchain(key, path); + }; + + ChainNodePrototype.count = 0; + + ChainNodePrototype.chain = function(key, path, src) { + var chains = this._chains, node; + if (!chains) { chains = this._chains = {}; } + + node = chains[key]; + if (!node) { node = chains[key] = new ChainNode(this, key, src); } + node.count++; // count chains... + + // chain rest of path if there is one + if (path && path.length>0) { + key = firstKey(path); + path = path.slice(key.length+1); + node.chain(key, path); // NOTE: no src means it will observe changes... + } + }; + + ChainNodePrototype.unchain = function(key, path) { + var chains = this._chains, node = chains[key]; + + // unchain rest of path first... + if (path && path.length>1) { + key = firstKey(path); + path = path.slice(key.length+1); + node.unchain(key, path); + } + + // delete node if needed. + node.count--; + if (node.count<=0) { + delete chains[node._key]; + node.destroy(); + } + + }; + + ChainNodePrototype.willChange = function(events) { + var chains = this._chains; + if (chains) { + for(var key in chains) { + if (!chains.hasOwnProperty(key)) { continue; } + chains[key].willChange(events); + } + } + + if (this._parent) { this._parent.chainWillChange(this, this._key, 1, events); } + }; + + ChainNodePrototype.chainWillChange = function(chain, path, depth, events) { + if (this._key) { path = this._key + '.' + path; } + + if (this._parent) { + this._parent.chainWillChange(this, path, depth+1, events); + } else { + if (depth > 1) { + events.push(this.value(), path); + } + path = 'this.' + path; + if (this._paths[path] > 0) { + events.push(this.value(), path); + } + } + }; + + ChainNodePrototype.chainDidChange = function(chain, path, depth, events) { + if (this._key) { path = this._key + '.' + path; } + if (this._parent) { + this._parent.chainDidChange(this, path, depth+1, events); + } else { + if (depth > 1) { + events.push(this.value(), path); + } + path = 'this.' + path; + if (this._paths[path] > 0) { + events.push(this.value(), path); + } + } + }; + + ChainNodePrototype.didChange = function(events) { + // invalidate my own value first. + if (this._watching) { + var obj = this._parent.value(); + if (obj !== this._object) { + removeChainWatcher(this._object, this._key, this); + this._object = obj; + addChainWatcher(obj, this._key, this); + } + this._value = undefined; + + // Special-case: the EachProxy relies on immediate evaluation to + // establish its observers. + if (this._parent && this._parent._key === '@each') + this.value(); + } + + // then notify chains... + var chains = this._chains; + if (chains) { + for(var key in chains) { + if (!chains.hasOwnProperty(key)) { continue; } + chains[key].didChange(events); + } + } + + // if no events are passed in then we only care about the above wiring update + if (events === null) { return; } + + // and finally tell parent about my path changing... + if (this._parent) { this._parent.chainDidChange(this, this._key, 1, events); } + }; + + function finishChains(obj) { + // We only create meta if we really have to + var m = obj[META_KEY], chains = m && m.chains; + if (chains) { + if (chains.value() !== obj) { + metaFor(obj).chains = chains = chains.copy(obj); + } else { + chains.didChange(null); + } + } + }; + + __exports__.flushPendingChains = flushPendingChains; + __exports__.removeChainWatcher = removeChainWatcher; + __exports__.ChainNode = ChainNode; + __exports__.finishChains = finishChains; + }); +define("ember-metal/computed", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/enumerable_utils","ember-metal/platform","ember-metal/watching","ember-metal/expand_properties","ember-metal/error","ember-metal/properties","ember-metal/property_events","ember-metal/is_empty","ember-metal/is_none","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var get = __dependency2__.get; + var set = __dependency3__.set; + var meta = __dependency4__.meta; + var META_KEY = __dependency4__.META_KEY; + var guidFor = __dependency4__.guidFor; + var typeOf = __dependency4__.typeOf; + var inspect = __dependency4__.inspect; + var EnumerableUtils = __dependency5__["default"]; + var create = __dependency6__.create; + var watch = __dependency7__.watch; + var unwatch = __dependency7__.unwatch; + var expandProperties = __dependency8__["default"]; + var EmberError = __dependency9__["default"]; + var Descriptor = __dependency10__.Descriptor; + var defineProperty = __dependency10__.defineProperty; + var propertyWillChange = __dependency11__.propertyWillChange; + var propertyDidChange = __dependency11__.propertyDidChange; + var isEmpty = __dependency12__["default"]; + var isNone = __dependency13__.isNone; + + /** + @module ember-metal + */ + + Ember.warn("The CP_DEFAULT_CACHEABLE flag has been removed and computed properties are always cached by default. Use `volatile` if you don't want caching.", Ember.ENV.CP_DEFAULT_CACHEABLE !== false); + + + var metaFor = meta, + a_slice = [].slice, + o_create = create; + + function UNDEFINED() { } + + + var lengthPattern = /\.(length|\[\])$/; + + + // .......................................................... + // DEPENDENT KEYS + // + + // data structure: + // meta.deps = { + // 'depKey': { + // 'keyName': count, + // } + // } + + /* + This function returns a map of unique dependencies for a + given object and key. + */ + function keysForDep(depsMeta, depKey) { + var keys = depsMeta[depKey]; + if (!keys) { + // if there are no dependencies yet for a the given key + // create a new empty list of dependencies for the key + keys = depsMeta[depKey] = {}; + } else if (!depsMeta.hasOwnProperty(depKey)) { + // otherwise if the dependency list is inherited from + // a superclass, clone the hash + keys = depsMeta[depKey] = o_create(keys); + } + return keys; + } + + function metaForDeps(meta) { + return keysForDep(meta, 'deps'); + } + + function addDependentKeys(desc, obj, keyName, meta) { + // the descriptor has a list of dependent keys, so + // add all of its dependent keys. + var depKeys = desc._dependentKeys, depsMeta, idx, len, depKey, keys; + if (!depKeys) return; + + depsMeta = metaForDeps(meta); + + for(idx = 0, len = depKeys.length; idx < len; idx++) { + depKey = depKeys[idx]; + // Lookup keys meta for depKey + keys = keysForDep(depsMeta, depKey); + // Increment the number of times depKey depends on keyName. + keys[keyName] = (keys[keyName] || 0) + 1; + // Watch the depKey + watch(obj, depKey, meta); + } + } + + function removeDependentKeys(desc, obj, keyName, meta) { + // the descriptor has a list of dependent keys, so + // add all of its dependent keys. + var depKeys = desc._dependentKeys, depsMeta, idx, len, depKey, keys; + if (!depKeys) return; + + depsMeta = metaForDeps(meta); + + for(idx = 0, len = depKeys.length; idx < len; idx++) { + depKey = depKeys[idx]; + // Lookup keys meta for depKey + keys = keysForDep(depsMeta, depKey); + // Increment the number of times depKey depends on keyName. + keys[keyName] = (keys[keyName] || 0) - 1; + // Watch the depKey + unwatch(obj, depKey, meta); + } + } + + // .......................................................... + // COMPUTED PROPERTY + // + + /** + A computed property transforms an objects function into a property. + + By default the function backing the computed property will only be called + once and the result will be cached. You can specify various properties + that your computed property is dependent on. This will force the cached + result to be recomputed if the dependencies are modified. + + In the following example we declare a computed property (by calling + `.property()` on the fullName function) and setup the properties + dependencies (depending on firstName and lastName). The fullName function + will be called once (regardless of how many times it is accessed) as long + as it's dependencies have not been changed. Once firstName or lastName are updated + any future calls (or anything bound) to fullName will incorporate the new + values. + + ```javascript + Person = Ember.Object.extend({ + // these will be supplied by `create` + firstName: null, + lastName: null, + + fullName: function() { + var firstName = this.get('firstName'); + var lastName = this.get('lastName'); + + return firstName + ' ' + lastName; + }.property('firstName', 'lastName') + }); + + var tom = Person.create({ + firstName: "Tom", + lastName: "Dale" + }); + + tom.get('fullName') // "Tom Dale" + ``` + + You can also define what Ember should do when setting a computed property. + If you try to set a computed property, it will be invoked with the key and + value you want to set it to. You can also accept the previous value as the + third parameter. + + ```javascript + + Person = Ember.Object.extend({ + // these will be supplied by `create` + firstName: null, + lastName: null, + + fullName: function(key, value, oldValue) { + // getter + if (arguments.length === 1) { + var firstName = this.get('firstName'); + var lastName = this.get('lastName'); + + return firstName + ' ' + lastName; + + // setter + } else { + var name = value.split(" "); + + this.set('firstName', name[0]); + this.set('lastName', name[1]); + + return value; + } + }.property('firstName', 'lastName') + }); + + var person = Person.create(); + person.set('fullName', "Peter Wagenet"); + person.get('firstName') // Peter + person.get('lastName') // Wagenet + ``` + + @class ComputedProperty + @namespace Ember + @extends Ember.Descriptor + @constructor + */ + function ComputedProperty(func, opts) { + func.__ember_arity__ = func.length; + this.func = func; + + this._cacheable = (opts && opts.cacheable !== undefined) ? opts.cacheable : true; + this._dependentKeys = opts && opts.dependentKeys; + this._readOnly = opts && (opts.readOnly !== undefined || !!opts.readOnly) || false; + } + + ComputedProperty.prototype = new Descriptor(); + + var ComputedPropertyPrototype = ComputedProperty.prototype; + ComputedPropertyPrototype._dependentKeys = undefined; + ComputedPropertyPrototype._suspended = undefined; + ComputedPropertyPrototype._meta = undefined; + + /** + Properties are cacheable by default. Computed property will automatically + cache the return value of your function until one of the dependent keys changes. + + Call `volatile()` to set it into non-cached mode. When in this mode + the computed property will not automatically cache the return value. + + However, if a property is properly observable, there is no reason to disable + caching. + + @method cacheable + @param {Boolean} aFlag optional set to `false` to disable caching + @return {Ember.ComputedProperty} this + @chainable + */ + ComputedPropertyPrototype.cacheable = function(aFlag) { + this._cacheable = aFlag !== false; + return this; + }; + + /** + Call on a computed property to set it into non-cached mode. When in this + mode the computed property will not automatically cache the return value. + + ```javascript + MyApp.outsideService = Ember.Object.extend({ + value: function() { + return OutsideService.getValue(); + }.property().volatile() + }).create(); + ``` + + @method volatile + @return {Ember.ComputedProperty} this + @chainable + */ + ComputedPropertyPrototype.volatile = function() { + return this.cacheable(false); + }; + + /** + Call on a computed property to set it into read-only mode. When in this + mode the computed property will throw an error when set. + + ```javascript + MyApp.Person = Ember.Object.extend({ + guid: function() { + return 'guid-guid-guid'; + }.property().readOnly() + }); + + MyApp.person = MyApp.Person.create(); + + MyApp.person.set('guid', 'new-guid'); // will throw an exception + ``` + + @method readOnly + @return {Ember.ComputedProperty} this + @chainable + */ + ComputedPropertyPrototype.readOnly = function(readOnly) { + this._readOnly = readOnly === undefined || !!readOnly; + return this; + }; + + /** + Sets the dependent keys on this computed property. Pass any number of + arguments containing key paths that this computed property depends on. + + ```javascript + MyApp.President = Ember.Object.extend({ + fullName: computed(function() { + return this.get('firstName') + ' ' + this.get('lastName'); + + // Tell Ember that this computed property depends on firstName + // and lastName + }).property('firstName', 'lastName') + }); + + MyApp.president = MyApp.President.create({ + firstName: 'Barack', + lastName: 'Obama', + }); + MyApp.president.get('fullName'); // Barack Obama + ``` + + @method property + @param {String} path* zero or more property paths + @return {Ember.ComputedProperty} this + @chainable + */ + ComputedPropertyPrototype.property = function() { + var args; + + var addArg = function (property) { + args.push(property); + }; + + args = []; + for (var i = 0, l = arguments.length; i < l; i++) { + expandProperties(arguments[i], addArg); + } + + this._dependentKeys = args; + return this; + }; + + /** + In some cases, you may want to annotate computed properties with additional + metadata about how they function or what values they operate on. For example, + computed property functions may close over variables that are then no longer + available for introspection. + + You can pass a hash of these values to a computed property like this: + + ``` + person: function() { + var personId = this.get('personId'); + return App.Person.create({ id: personId }); + }.property().meta({ type: App.Person }) + ``` + + The hash that you pass to the `meta()` function will be saved on the + computed property descriptor under the `_meta` key. Ember runtime + exposes a public API for retrieving these values from classes, + via the `metaForProperty()` function. + + @method meta + @param {Hash} meta + @chainable + */ + + ComputedPropertyPrototype.meta = function(meta) { + if (arguments.length === 0) { + return this._meta || {}; + } else { + this._meta = meta; + return this; + } + }; + + /* impl descriptor API */ + ComputedPropertyPrototype.didChange = function(obj, keyName) { + // _suspended is set via a CP.set to ensure we don't clear + // the cached value set by the setter + if (this._cacheable && this._suspended !== obj) { + var meta = metaFor(obj); + if (meta.cache[keyName] !== undefined) { + meta.cache[keyName] = undefined; + removeDependentKeys(this, obj, keyName, meta); + } + } + }; + + function finishChains(chainNodes) + { + for (var i=0, l=chainNodes.length; i 1) { + args = a_slice.call(arguments, 0, -1); + func = a_slice.call(arguments, -1)[0]; + } + + if (typeof func !== "function") { + throw new EmberError("Computed Property declared without a property function"); + } + + var cp = new ComputedProperty(func); + + if (args) { + cp.property.apply(cp, args); + } + + return cp; + }; + + /** + Returns the cached value for a property, if one exists. + This can be useful for peeking at the value of a computed + property that is generated lazily, without accidentally causing + it to be created. + + @method cacheFor + @for Ember + @param {Object} obj the object whose property you want to check + @param {String} key the name of the property whose cached value you want + to return + @return {Object} the cached value + */ + function cacheFor(obj, key) { + var meta = obj[META_KEY], + cache = meta && meta.cache, + ret = cache && cache[key]; + + if (ret === UNDEFINED) { return undefined; } + return ret; + }; + + cacheFor.set = function(cache, key, value) { + if (value === undefined) { + cache[key] = UNDEFINED; + } else { + cache[key] = value; + } + }; + + cacheFor.get = function(cache, key) { + var ret = cache[key]; + if (ret === UNDEFINED) { return undefined; } + return ret; + }; + + cacheFor.remove = function(cache, key) { + cache[key] = undefined; + }; + + function getProperties(self, propertyNames) { + var ret = {}; + for(var i = 0; i < propertyNames.length; i++) { + ret[propertyNames[i]] = get(self, propertyNames[i]); + } + return ret; + } + + function registerComputed(name, macro) { + computed[name] = function(dependentKey) { + var args = a_slice.call(arguments); + return computed(dependentKey, function() { + return macro.apply(this, args); + }); + }; + }; + + function registerComputedWithProperties(name, macro) { + computed[name] = function() { + var properties = a_slice.call(arguments); + + var computedFunc = computed(function() { + return macro.apply(this, [getProperties(this, properties)]); + }); + + return computedFunc.property.apply(computedFunc, properties); + }; + }; + + + /** + A computed property that returns true if the value of the dependent + property is null, an empty string, empty array, or empty function. + + Example + + ```javascript + var ToDoList = Ember.Object.extend({ + done: Ember.computed.empty('todos') + }); + var todoList = ToDoList.create({todos: ['Unit Test', 'Documentation', 'Release']}); + todoList.get('done'); // false + todoList.get('todos').clear(); + todoList.get('done'); // true + ``` + + @method computed.empty + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which negate + the original value for property + */ + computed.empty = function (dependentKey) { + return computed(dependentKey + '.length', function () { + return isEmpty(get(this, dependentKey)); + }); + }; + + /** + A computed property that returns true if the value of the dependent + property is NOT null, an empty string, empty array, or empty function. + + Note: When using `computed.notEmpty` to watch an array make sure to + use the `array.[]` syntax so the computed can subscribe to transitions + from empty to non-empty states. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + hasStuff: computed.notEmpty('backpack.[]') + }); + var hamster = Hamster.create({backpack: ['Food', 'Sleeping Bag', 'Tent']}); + hamster.get('hasStuff'); // true + hamster.get('backpack').clear(); // [] + hamster.get('hasStuff'); // false + ``` + + @method computed.notEmpty + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which returns true if + original value for property is not empty. + */ + registerComputed('notEmpty', function(dependentKey) { + return !isEmpty(get(this, dependentKey)); + }); + + /** + A computed property that returns true if the value of the dependent + property is null or undefined. This avoids errors from JSLint complaining + about use of ==, which can be technically confusing. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + isHungry: computed.none('food') + }); + var hamster = Hamster.create(); + hamster.get('isHungry'); // true + hamster.set('food', 'Banana'); + hamster.get('isHungry'); // false + hamster.set('food', null); + hamster.get('isHungry'); // true + ``` + + @method computed.none + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which + returns true if original value for property is null or undefined. + */ + registerComputed('none', function(dependentKey) { + return isNone(get(this, dependentKey)); + }); + + /** + A computed property that returns the inverse boolean value + of the original value for the dependent property. + + Example + + ```javascript + var User = Ember.Object.extend({ + isAnonymous: computed.not('loggedIn') + }); + var user = User.create({loggedIn: false}); + user.get('isAnonymous'); // true + user.set('loggedIn', true); + user.get('isAnonymous'); // false + ``` + + @method computed.not + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which returns + inverse of the original value for property + */ + registerComputed('not', function(dependentKey) { + return !get(this, dependentKey); + }); + + /** + A computed property that converts the provided dependent property + into a boolean value. + + ```javascript + var Hamster = Ember.Object.extend({ + hasBananas: computed.bool('numBananas') + }); + var hamster = Hamster.create(); + hamster.get('hasBananas'); // false + hamster.set('numBananas', 0); + hamster.get('hasBananas'); // false + hamster.set('numBananas', 1); + hamster.get('hasBananas'); // true + hamster.set('numBananas', null); + hamster.get('hasBananas'); // false + ``` + + @method computed.bool + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which converts + to boolean the original value for property + */ + registerComputed('bool', function(dependentKey) { + return !!get(this, dependentKey); + }); + + /** + A computed property which matches the original value for the + dependent property against a given RegExp, returning `true` + if they values matches the RegExp and `false` if it does not. + + Example + + ```javascript + var User = Ember.Object.extend({ + hasValidEmail: computed.match('email', /^.+@.+\..+$/) + }); + var user = User.create({loggedIn: false}); + user.get('hasValidEmail'); // false + user.set('email', ''); + user.get('hasValidEmail'); // false + user.set('email', 'ember_hamster@example.com'); + user.get('hasValidEmail'); // true + ``` + + @method computed.match + @for Ember + @param {String} dependentKey + @param {RegExp} regexp + @return {Ember.ComputedProperty} computed property which match + the original value for property against a given RegExp + */ + registerComputed('match', function(dependentKey, regexp) { + var value = get(this, dependentKey); + return typeof value === 'string' ? regexp.test(value) : false; + }); + + /** + A computed property that returns true if the provided dependent property + is equal to the given value. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + napTime: computed.equal('state', 'sleepy') + }); + var hamster = Hamster.create(); + hamster.get('napTime'); // false + hamster.set('state', 'sleepy'); + hamster.get('napTime'); // true + hamster.set('state', 'hungry'); + hamster.get('napTime'); // false + ``` + + @method computed.equal + @for Ember + @param {String} dependentKey + @param {String|Number|Object} value + @return {Ember.ComputedProperty} computed property which returns true if + the original value for property is equal to the given value. + */ + registerComputed('equal', function(dependentKey, value) { + return get(this, dependentKey) === value; + }); + + /** + A computed property that returns true if the provied dependent property + is greater than the provided value. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + hasTooManyBananas: computed.gt('numBananas', 10) + }); + var hamster = Hamster.create(); + hamster.get('hasTooManyBananas'); // false + hamster.set('numBananas', 3); + hamster.get('hasTooManyBananas'); // false + hamster.set('numBananas', 11); + hamster.get('hasTooManyBananas'); // true + ``` + + @method computed.gt + @for Ember + @param {String} dependentKey + @param {Number} value + @return {Ember.ComputedProperty} computed property which returns true if + the original value for property is greater then given value. + */ + registerComputed('gt', function(dependentKey, value) { + return get(this, dependentKey) > value; + }); + + /** + A computed property that returns true if the provided dependent property + is greater than or equal to the provided value. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + hasTooManyBananas: computed.gte('numBananas', 10) + }); + var hamster = Hamster.create(); + hamster.get('hasTooManyBananas'); // false + hamster.set('numBananas', 3); + hamster.get('hasTooManyBananas'); // false + hamster.set('numBananas', 10); + hamster.get('hasTooManyBananas'); // true + ``` + + @method computed.gte + @for Ember + @param {String} dependentKey + @param {Number} value + @return {Ember.ComputedProperty} computed property which returns true if + the original value for property is greater or equal then given value. + */ + registerComputed('gte', function(dependentKey, value) { + return get(this, dependentKey) >= value; + }); + + /** + A computed property that returns true if the provided dependent property + is less than the provided value. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + needsMoreBananas: computed.lt('numBananas', 3) + }); + var hamster = Hamster.create(); + hamster.get('needsMoreBananas'); // true + hamster.set('numBananas', 3); + hamster.get('needsMoreBananas'); // false + hamster.set('numBananas', 2); + hamster.get('needsMoreBananas'); // true + ``` + + @method computed.lt + @for Ember + @param {String} dependentKey + @param {Number} value + @return {Ember.ComputedProperty} computed property which returns true if + the original value for property is less then given value. + */ + registerComputed('lt', function(dependentKey, value) { + return get(this, dependentKey) < value; + }); + + /** + A computed property that returns true if the provided dependent property + is less than or equal to the provided value. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + needsMoreBananas: computed.lte('numBananas', 3) + }); + var hamster = Hamster.create(); + hamster.get('needsMoreBananas'); // true + hamster.set('numBananas', 5); + hamster.get('needsMoreBananas'); // false + hamster.set('numBananas', 3); + hamster.get('needsMoreBananas'); // true + ``` + + @method computed.lte + @for Ember + @param {String} dependentKey + @param {Number} value + @return {Ember.ComputedProperty} computed property which returns true if + the original value for property is less or equal then given value. + */ + registerComputed('lte', function(dependentKey, value) { + return get(this, dependentKey) <= value; + }); + + /** + A computed property that performs a logical `and` on the + original values for the provided dependent properties. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + readyForCamp: computed.and('hasTent', 'hasBackpack') + }); + var hamster = Hamster.create(); + hamster.get('readyForCamp'); // false + hamster.set('hasTent', true); + hamster.get('readyForCamp'); // false + hamster.set('hasBackpack', true); + hamster.get('readyForCamp'); // true + ``` + + @method computed.and + @for Ember + @param {String} dependentKey* + @return {Ember.ComputedProperty} computed property which performs + a logical `and` on the values of all the original values for properties. + */ + registerComputedWithProperties('and', function(properties) { + for (var key in properties) { + if (properties.hasOwnProperty(key) && !properties[key]) { + return false; + } + } + return true; + }); + + /** + A computed property which performs a logical `or` on the + original values for the provided dependent properties. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + readyForRain: computed.or('hasJacket', 'hasUmbrella') + }); + var hamster = Hamster.create(); + hamster.get('readyForRain'); // false + hamster.set('hasJacket', true); + hamster.get('readyForRain'); // true + ``` + + @method computed.or + @for Ember + @param {String} dependentKey* + @return {Ember.ComputedProperty} computed property which performs + a logical `or` on the values of all the original values for properties. + */ + registerComputedWithProperties('or', function(properties) { + for (var key in properties) { + if (properties.hasOwnProperty(key) && properties[key]) { + return true; + } + } + return false; + }); + + /** + A computed property that returns the first truthy value + from a list of dependent properties. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + hasClothes: computed.any('hat', 'shirt') + }); + var hamster = Hamster.create(); + hamster.get('hasClothes'); // null + hamster.set('shirt', 'Hawaiian Shirt'); + hamster.get('hasClothes'); // 'Hawaiian Shirt' + ``` + + @method computed.any + @for Ember + @param {String} dependentKey* + @return {Ember.ComputedProperty} computed property which returns + the first truthy value of given list of properties. + */ + registerComputedWithProperties('any', function(properties) { + for (var key in properties) { + if (properties.hasOwnProperty(key) && properties[key]) { + return properties[key]; + } + } + return null; + }); + + /** + A computed property that returns the array of values + for the provided dependent properties. + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + clothes: computed.collect('hat', 'shirt') + }); + var hamster = Hamster.create(); + hamster.get('clothes'); // [null, null] + hamster.set('hat', 'Camp Hat'); + hamster.set('shirt', 'Camp Shirt'); + hamster.get('clothes'); // ['Camp Hat', 'Camp Shirt'] + ``` + + @method computed.collect + @for Ember + @param {String} dependentKey* + @return {Ember.ComputedProperty} computed property which maps + values of all passed properties in to an array. + */ + registerComputedWithProperties('collect', function(properties) { + var res = []; + for (var key in properties) { + if (properties.hasOwnProperty(key)) { + if (isNone(properties[key])) { + res.push(null); + } else { + res.push(properties[key]); + } + } + } + return res; + }); + + /** + Creates a new property that is an alias for another property + on an object. Calls to `get` or `set` this property behave as + though they were called on the original property. + + ```javascript + Person = Ember.Object.extend({ + name: 'Alex Matchneer', + nomen: computed.alias('name') + }); + + alex = Person.create(); + alex.get('nomen'); // 'Alex Matchneer' + alex.get('name'); // 'Alex Matchneer' + + alex.set('nomen', '@machty'); + alex.get('name'); // '@machty' + ``` + @method computed.alias + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which creates an + alias to the original value for property. + */ + computed.alias = function(dependentKey) { + return computed(dependentKey, function(key, value) { + if (arguments.length > 1) { + set(this, dependentKey, value); + return value; + } else { + return get(this, dependentKey); + } + }); + }; + + /** + Where `computed.alias` aliases `get` and `set`, and allows for bidirectional + data flow, `computed.oneWay` only provides an aliased `get`. The `set` will + not mutate the upstream property, rather causes the current property to + become the value set. This causes the downstream property to permentantly + diverge from the upstream property. + + Example + + ```javascript + User = Ember.Object.extend({ + firstName: null, + lastName: null, + nickName: computed.oneWay('firstName') + }); + + user = User.create({ + firstName: 'Teddy', + lastName: 'Zeenny' + }); + + user.get('nickName'); + # 'Teddy' + + user.set('nickName', 'TeddyBear'); + # 'TeddyBear' + + user.get('firstName'); + # 'Teddy' + ``` + + @method computed.oneWay + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which creates a + one way computed property to the original value for property. + */ + computed.oneWay = function(dependentKey) { + return computed(dependentKey, function() { + return get(this, dependentKey); + }); + }; + + if (Ember.FEATURES.isEnabled('query-params-new')) { + /** + This is a more semantically meaningful alias of `computed.oneWay`, + whose name is somewhat ambiguous as to which direction the data flows. + + @method computed.reads + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which creates a + one way computed property to the original value for property. + */ + computed.reads = computed.oneWay; + } + + /** + Where `computed.oneWay` provides oneWay bindings, `computed.readOnly` provides + a readOnly one way binding. Very often when using `computed.oneWay` one does + not also want changes to propogate back up, as they will replace the value. + + This prevents the reverse flow, and also throws an exception when it occurs. + + Example + + ```javascript + User = Ember.Object.extend({ + firstName: null, + lastName: null, + nickName: computed.readOnly('firstName') + }); + + user = User.create({ + firstName: 'Teddy', + lastName: 'Zeenny' + }); + + user.get('nickName'); + # 'Teddy' + + user.set('nickName', 'TeddyBear'); + # throws Exception + # throw new Ember.Error('Cannot Set: nickName on: ' );` + + user.get('firstName'); + # 'Teddy' + ``` + + @method computed.readOnly + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computed property which creates a + one way computed property to the original value for property. + */ + computed.readOnly = function(dependentKey) { + return computed(dependentKey, function() { + return get(this, dependentKey); + }).readOnly(); + }; + /** + A computed property that acts like a standard getter and setter, + but returns the value at the provided `defaultPath` if the + property itself has not been set to a value + + Example + + ```javascript + var Hamster = Ember.Object.extend({ + wishList: computed.defaultTo('favoriteFood') + }); + var hamster = Hamster.create({favoriteFood: 'Banana'}); + hamster.get('wishList'); // 'Banana' + hamster.set('wishList', 'More Unit Tests'); + hamster.get('wishList'); // 'More Unit Tests' + hamster.get('favoriteFood'); // 'Banana' + ``` + + @method computed.defaultTo + @for Ember + @param {String} defaultPath + @return {Ember.ComputedProperty} computed property which acts like + a standard getter and setter, but defaults to the value from `defaultPath`. + */ + // ES6TODO: computed should have its own export path so you can do import {defaultTo} from computed + computed.defaultTo = function(defaultPath) { + return computed(function(key, newValue, cachedValue) { + if (arguments.length === 1) { + return get(this, defaultPath); + } + return newValue != null ? newValue : get(this, defaultPath); + }); + }; + + __exports__.ComputedProperty = ComputedProperty; + __exports__.computed = computed; + __exports__.cacheFor = cacheFor; + }); +define("ember-metal/core", + ["exports"], + function(__exports__) { + "use strict"; + /*globals Em:true ENV EmberENV MetamorphENV:true */ + + /** + @module ember + @submodule ember-metal + */ + + /** + All Ember methods and functions are defined inside of this namespace. You + generally should not add new properties to this namespace as it may be + overwritten by future versions of Ember. + + You can also use the shorthand `Em` instead of `Ember`. + + Ember-Runtime is a framework that provides core functions for Ember including + cross-platform functions, support for property observing and objects. Its + focus is on small size and performance. You can use this in place of or + along-side other cross-platform libraries such as jQuery. + + The core Runtime framework is based on the jQuery API with a number of + performance optimizations. + + @class Ember + @static + @version 1.6.0-beta.2 + */ + + if ('undefined' === typeof Ember) { + // Create core object. Make it act like an instance of Ember.Namespace so that + // objects assigned to it are given a sane string representation. + Ember = {}; + } + + // Default imports, exports and lookup to the global object; + var imports = Ember.imports = Ember.imports || this; + var exports = Ember.exports = Ember.exports || this; + var lookup = Ember.lookup = Ember.lookup || this; + + // aliases needed to keep minifiers from removing the global context + exports.Em = exports.Ember = Ember; + + // Make sure these are set whether Ember was already defined or not + + Ember.isNamespace = true; + + Ember.toString = function() { return "Ember"; }; + + + /** + @property VERSION + @type String + @default '1.6.0-beta.2' + @static + */ + Ember.VERSION = '1.6.0-beta.2'; + + /** + Standard environmental variables. You can define these in a global `EmberENV` + variable before loading Ember to control various configuration settings. + + For backwards compatibility with earlier versions of Ember the global `ENV` + variable will be used if `EmberENV` is not defined. + + @property ENV + @type Hash + */ + + if (Ember.ENV) { + // do nothing if Ember.ENV is already setup + } else if ('undefined' !== typeof EmberENV) { + Ember.ENV = EmberENV; + } else if('undefined' !== typeof ENV) { + Ember.ENV = ENV; + } else { + Ember.ENV = {}; + } + + Ember.config = Ember.config || {}; + + // We disable the RANGE API by default for performance reasons + if ('undefined' === typeof Ember.ENV.DISABLE_RANGE_API) { + Ember.ENV.DISABLE_RANGE_API = true; + } + + if ("undefined" === typeof MetamorphENV) { + exports.MetamorphENV = {}; + } + + MetamorphENV.DISABLE_RANGE_API = Ember.ENV.DISABLE_RANGE_API; + + /** + Hash of enabled Canary features. Add to before creating your application. + + You can also define `ENV.FEATURES` if you need to enable features flagged at runtime. + + @property FEATURES + @type Hash + */ + + Ember.FEATURES = Ember.ENV.FEATURES || {}; + + /** + Test that a feature is enabled. Parsed by Ember's build tools to leave + experimental features out of beta/stable builds. + + You can define the following configuration options: + + * `ENV.ENABLE_ALL_FEATURES` - force all features to be enabled. + * `ENV.ENABLE_OPTIONAL_FEATURES` - enable any features that have not been explicitly + enabled/disabled. + + @method isEnabled + @param {string} feature + */ + + Ember.FEATURES.isEnabled = function(feature) { + var featureValue = Ember.FEATURES[feature]; + + if (Ember.ENV.ENABLE_ALL_FEATURES) { + return true; + } else if (featureValue === true || featureValue === false || featureValue === undefined) { + return featureValue; + } else if (Ember.ENV.ENABLE_OPTIONAL_FEATURES) { + return true; + } else { + return false; + } + }; + + // .......................................................... + // BOOTSTRAP + // + + /** + Determines whether Ember should enhances some built-in object prototypes to + provide a more friendly API. If enabled, a few methods will be added to + `Function`, `String`, and `Array`. `Object.prototype` will not be enhanced, + which is the one that causes most trouble for people. + + In general we recommend leaving this option set to true since it rarely + conflicts with other code. If you need to turn it off however, you can + define an `ENV.EXTEND_PROTOTYPES` config to disable it. + + @property EXTEND_PROTOTYPES + @type Boolean + @default true + */ + Ember.EXTEND_PROTOTYPES = Ember.ENV.EXTEND_PROTOTYPES; + + if (typeof Ember.EXTEND_PROTOTYPES === 'undefined') { + Ember.EXTEND_PROTOTYPES = true; + } + + /** + Determines whether Ember logs a full stack trace during deprecation warnings + + @property LOG_STACKTRACE_ON_DEPRECATION + @type Boolean + @default true + */ + Ember.LOG_STACKTRACE_ON_DEPRECATION = (Ember.ENV.LOG_STACKTRACE_ON_DEPRECATION !== false); + + /** + Determines whether Ember should add ECMAScript 5 shims to older browsers. + + @property SHIM_ES5 + @type Boolean + @default Ember.EXTEND_PROTOTYPES + */ + Ember.SHIM_ES5 = (Ember.ENV.SHIM_ES5 === false) ? false : Ember.EXTEND_PROTOTYPES; + + /** + Determines whether Ember logs info about version of used libraries + + @property LOG_VERSION + @type Boolean + @default true + */ + Ember.LOG_VERSION = (Ember.ENV.LOG_VERSION === false) ? false : true; + + /** + Empty function. Useful for some operations. Always returns `this`. + + @method K + @private + @return {Object} + */ + Ember.K = function() { return this; }; + + + // Stub out the methods defined by the ember-debug package in case it's not loaded + + if ('undefined' === typeof Ember.assert) { Ember.assert = Ember.K; } + if ('undefined' === typeof Ember.warn) { Ember.warn = Ember.K; } + if ('undefined' === typeof Ember.debug) { Ember.debug = Ember.K; } + if ('undefined' === typeof Ember.runInDebug) { Ember.runInDebug = Ember.K; } + if ('undefined' === typeof Ember.deprecate) { Ember.deprecate = Ember.K; } + if ('undefined' === typeof Ember.deprecateFunc) { + Ember.deprecateFunc = function(_, func) { return func; }; + } + + /** + Previously we used `Ember.$.uuid`, however `$.uuid` has been removed from + jQuery master. We'll just bootstrap our own uuid now. + + @property uuid + @type Number + @private + */ + Ember.uuid = 0; + + __exports__["default"] = Ember; + }); +define("ember-metal/enumerable_utils", + ["ember-metal/array","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var map, forEach, indexOf, splice, filter; + + var map = __dependency1__.map; + var forEach = __dependency1__.forEach; + var indexOf = __dependency1__.indexOf; + var filter = __dependency1__.filter; + + // ES6TODO: doesn't array polyfills already do this? + map = Array.prototype.map || map; + forEach = Array.prototype.forEach || forEach; + indexOf = Array.prototype.indexOf || indexOf; + filter = Array.prototype.filter || filter; + splice = Array.prototype.splice; + + /** + * Defines some convenience methods for working with Enumerables. + * `Ember.EnumerableUtils` uses `Ember.ArrayPolyfills` when necessary. + * + * @class EnumerableUtils + * @namespace Ember + * @static + * */ + var utils = { + /** + * Calls the map function on the passed object with a specified callback. This + * uses `Ember.ArrayPolyfill`'s-map method when necessary. + * + * @method map + * @param {Object} obj The object that should be mapped + * @param {Function} callback The callback to execute + * @param {Object} thisArg Value to use as this when executing *callback* + * + * @return {Array} An array of mapped values. + */ + map: function(obj, callback, thisArg) { + return obj.map ? obj.map.call(obj, callback, thisArg) : map.call(obj, callback, thisArg); + }, + + /** + * Calls the forEach function on the passed object with a specified callback. This + * uses `Ember.ArrayPolyfill`'s-forEach method when necessary. + * + * @method forEach + * @param {Object} obj The object to call forEach on + * @param {Function} callback The callback to execute + * @param {Object} thisArg Value to use as this when executing *callback* + * + */ + forEach: function(obj, callback, thisArg) { + return obj.forEach ? obj.forEach.call(obj, callback, thisArg) : forEach.call(obj, callback, thisArg); + }, + + /** + * Calls the filter function on the passed object with a specified callback. This + * uses `Ember.ArrayPolyfill`'s-filter method when necessary. + * + * @method filter + * @param {Object} obj The object to call filter on + * @param {Function} callback The callback to execute + * @param {Object} thisArg Value to use as this when executing *callback* + * + * @return {Array} An array containing the filtered values + */ + filter: function(obj, callback, thisArg) { + return obj.filter ? obj.filter.call(obj, callback, thisArg) : filter.call(obj, callback, thisArg); + }, + + /** + * Calls the indexOf function on the passed object with a specified callback. This + * uses `Ember.ArrayPolyfill`'s-indexOf method when necessary. + * + * @method indexOf + * @param {Object} obj The object to call indexOn on + * @param {Function} callback The callback to execute + * @param {Object} index The index to start searching from + * + */ + indexOf: function(obj, element, index) { + return obj.indexOf ? obj.indexOf.call(obj, element, index) : indexOf.call(obj, element, index); + }, + + /** + * Returns an array of indexes of the first occurrences of the passed elements + * on the passed object. + * + * ```javascript + * var array = [1, 2, 3, 4, 5]; + * Ember.EnumerableUtils.indexesOf(array, [2, 5]); // [1, 4] + * + * var fubar = "Fubarr"; + * Ember.EnumerableUtils.indexesOf(fubar, ['b', 'r']); // [2, 4] + * ``` + * + * @method indexesOf + * @param {Object} obj The object to check for element indexes + * @param {Array} elements The elements to search for on *obj* + * + * @return {Array} An array of indexes. + * + */ + indexesOf: function(obj, elements) { + return elements === undefined ? [] : utils.map(elements, function(item) { + return utils.indexOf(obj, item); + }); + }, + + /** + * Adds an object to an array. If the array already includes the object this + * method has no effect. + * + * @method addObject + * @param {Array} array The array the passed item should be added to + * @param {Object} item The item to add to the passed array + * + * @return 'undefined' + */ + addObject: function(array, item) { + var index = utils.indexOf(array, item); + if (index === -1) { array.push(item); } + }, + + /** + * Removes an object from an array. If the array does not contain the passed + * object this method has no effect. + * + * @method removeObject + * @param {Array} array The array to remove the item from. + * @param {Object} item The item to remove from the passed array. + * + * @return 'undefined' + */ + removeObject: function(array, item) { + var index = utils.indexOf(array, item); + if (index !== -1) { array.splice(index, 1); } + }, + + _replace: function(array, idx, amt, objects) { + var args = [].concat(objects), chunk, ret = [], + // https://code.google.com/p/chromium/issues/detail?id=56588 + size = 60000, start = idx, ends = amt, count; + + while (args.length) { + count = ends > size ? size : ends; + if (count <= 0) { count = 0; } + + chunk = args.splice(0, size); + chunk = [start, count].concat(chunk); + + start += size; + ends -= count; + + ret = ret.concat(splice.apply(array, chunk)); + } + return ret; + }, + + /** + * Replaces objects in an array with the passed objects. + * + * ```javascript + * var array = [1,2,3]; + * Ember.EnumerableUtils.replace(array, 1, 2, [4, 5]); // [1, 4, 5] + * + * var array = [1,2,3]; + * Ember.EnumerableUtils.replace(array, 1, 1, [4, 5]); // [1, 4, 5, 3] + * + * var array = [1,2,3]; + * Ember.EnumerableUtils.replace(array, 10, 1, [4, 5]); // [1, 2, 3, 4, 5] + * ``` + * + * @method replace + * @param {Array} array The array the objects should be inserted into. + * @param {Number} idx Starting index in the array to replace. If *idx* >= + * length, then append to the end of the array. + * @param {Number} amt Number of elements that should be removed from the array, + * starting at *idx* + * @param {Array} objects An array of zero or more objects that should be + * inserted into the array at *idx* + * + * @return {Array} The modified array. + */ + replace: function(array, idx, amt, objects) { + if (array.replace) { + return array.replace(idx, amt, objects); + } else { + return utils._replace(array, idx, amt, objects); + } + }, + + /** + * Calculates the intersection of two arrays. This method returns a new array + * filled with the records that the two passed arrays share with each other. + * If there is no intersection, an empty array will be returned. + * + * ```javascript + * var array1 = [1, 2, 3, 4, 5]; + * var array2 = [1, 3, 5, 6, 7]; + * + * Ember.EnumerableUtils.intersection(array1, array2); // [1, 3, 5] + * + * var array1 = [1, 2, 3]; + * var array2 = [4, 5, 6]; + * + * Ember.EnumerableUtils.intersection(array1, array2); // [] + * ``` + * + * @method intersection + * @param {Array} array1 The first array + * @param {Array} array2 The second array + * + * @return {Array} The intersection of the two passed arrays. + */ + intersection: function(array1, array2) { + var intersection = []; + + utils.forEach(array1, function(element) { + if (utils.indexOf(array2, element) >= 0) { + intersection.push(element); + } + }); + + return intersection; + } + }; + + __exports__["default"] = utils; + }); +define("ember-metal/error", + ["ember-metal/platform","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var create = __dependency1__.create; + + var errorProps = ['description', 'fileName', 'lineNumber', 'message', 'name', 'number', 'stack']; + + /** + A subclass of the JavaScript Error object for use in Ember. + + @class Error + @namespace Ember + @extends Error + @constructor + */ + var EmberError = function() { + var tmp = Error.apply(this, arguments); + + // Adds a `stack` property to the given error object that will yield the + // stack trace at the time captureStackTrace was called. + // When collecting the stack trace all frames above the topmost call + // to this function, including that call, will be left out of the + // stack trace. + // This is useful because we can hide Ember implementation details + // that are not very helpful for the user. + if (Error.captureStackTrace) { + Error.captureStackTrace(this, Ember.Error); + } + // Unfortunately errors are not enumerable in Chrome (at least), so `for prop in tmp` doesn't work. + for (var idx = 0; idx < errorProps.length; idx++) { + this[errorProps[idx]] = tmp[errorProps[idx]]; + } + }; + + EmberError.prototype = create(Error.prototype); + + __exports__["default"] = EmberError; + }); +define("ember-metal/events", + ["ember-metal/core","ember-metal/utils","ember-metal/platform","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + /** + @module ember-metal + */ + var Ember = __dependency1__["default"]; + var meta = __dependency2__.meta; + var META_KEY = __dependency2__.META_KEY; + var tryFinally = __dependency2__.tryFinally; + var apply = __dependency2__.apply; + var applyStr = __dependency2__.applyStr; + var create = __dependency3__.create; + + var a_slice = [].slice, + metaFor = meta, + /* listener flags */ + ONCE = 1, SUSPENDED = 2; + + + /* + The event system uses a series of nested hashes to store listeners on an + object. When a listener is registered, or when an event arrives, these + hashes are consulted to determine which target and action pair to invoke. + + The hashes are stored in the object's meta hash, and look like this: + + // Object's meta hash + { + listeners: { // variable name: `listenerSet` + "foo:changed": [ // variable name: `actions` + target, method, flags + ] + } + } + + */ + + function indexOf(array, target, method) { + var index = -1; + // hashes are added to the end of the event array + // so it makes sense to start searching at the end + // of the array and search in reverse + for (var i = array.length - 3 ; i >=0; i -= 3) { + if (target === array[i] && method === array[i + 1]) { + index = i; break; + } + } + return index; + } + + function actionsFor(obj, eventName) { + var meta = metaFor(obj, true), + actions; + + if (!meta.listeners) { meta.listeners = {}; } + + if (!meta.hasOwnProperty('listeners')) { + // setup inherited copy of the listeners object + meta.listeners = create(meta.listeners); + } + + actions = meta.listeners[eventName]; + + // if there are actions, but the eventName doesn't exist in our listeners, then copy them from the prototype + if (actions && !meta.listeners.hasOwnProperty(eventName)) { + actions = meta.listeners[eventName] = meta.listeners[eventName].slice(); + } else if (!actions) { + actions = meta.listeners[eventName] = []; + } + + return actions; + } + + function listenersUnion(obj, eventName, otherActions) { + var meta = obj[META_KEY], + actions = meta && meta.listeners && meta.listeners[eventName]; + + if (!actions) { return; } + for (var i = actions.length - 3; i >= 0; i -= 3) { + var target = actions[i], + method = actions[i+1], + flags = actions[i+2], + actionIndex = indexOf(otherActions, target, method); + + if (actionIndex === -1) { + otherActions.push(target, method, flags); + } + } + } + + function listenersDiff(obj, eventName, otherActions) { + var meta = obj[META_KEY], + actions = meta && meta.listeners && meta.listeners[eventName], + diffActions = []; + + if (!actions) { return; } + for (var i = actions.length - 3; i >= 0; i -= 3) { + var target = actions[i], + method = actions[i+1], + flags = actions[i+2], + actionIndex = indexOf(otherActions, target, method); + + if (actionIndex !== -1) { continue; } + + otherActions.push(target, method, flags); + diffActions.push(target, method, flags); + } + + return diffActions; + } + + /** + Add an event listener + + @method addListener + @for Ember + @param obj + @param {String} eventName + @param {Object|Function} targetOrMethod A target object or a function + @param {Function|String} method A function or the name of a function to be called on `target` + @param {Boolean} once A flag whether a function should only be called once + */ + function addListener(obj, eventName, target, method, once) { + Ember.assert("You must pass at least an object and event name to Ember.addListener", !!obj && !!eventName); + + if (!method && 'function' === typeof target) { + method = target; + target = null; + } + + var actions = actionsFor(obj, eventName), + actionIndex = indexOf(actions, target, method), + flags = 0; + + if (once) flags |= ONCE; + + if (actionIndex !== -1) { return; } + + actions.push(target, method, flags); + + if ('function' === typeof obj.didAddListener) { + obj.didAddListener(eventName, target, method); + } + } + + /** + Remove an event listener + + Arguments should match those passed to `Ember.addListener`. + + @method removeListener + @for Ember + @param obj + @param {String} eventName + @param {Object|Function} targetOrMethod A target object or a function + @param {Function|String} method A function or the name of a function to be called on `target` + */ + function removeListener(obj, eventName, target, method) { + Ember.assert("You must pass at least an object and event name to Ember.removeListener", !!obj && !!eventName); + + if (!method && 'function' === typeof target) { + method = target; + target = null; + } + + function _removeListener(target, method) { + var actions = actionsFor(obj, eventName), + actionIndex = indexOf(actions, target, method); + + // action doesn't exist, give up silently + if (actionIndex === -1) { return; } + + actions.splice(actionIndex, 3); + + if ('function' === typeof obj.didRemoveListener) { + obj.didRemoveListener(eventName, target, method); + } + } + + if (method) { + _removeListener(target, method); + } else { + var meta = obj[META_KEY], + actions = meta && meta.listeners && meta.listeners[eventName]; + + if (!actions) { return; } + for (var i = actions.length - 3; i >= 0; i -= 3) { + _removeListener(actions[i], actions[i+1]); + } + } + } + + /** + Suspend listener during callback. + + This should only be used by the target of the event listener + when it is taking an action that would cause the event, e.g. + an object might suspend its property change listener while it is + setting that property. + + @method suspendListener + @for Ember + + @private + @param obj + @param {String} eventName + @param {Object|Function} targetOrMethod A target object or a function + @param {Function|String} method A function or the name of a function to be called on `target` + @param {Function} callback + */ + function suspendListener(obj, eventName, target, method, callback) { + if (!method && 'function' === typeof target) { + method = target; + target = null; + } + + var actions = actionsFor(obj, eventName), + actionIndex = indexOf(actions, target, method); + + if (actionIndex !== -1) { + actions[actionIndex+2] |= SUSPENDED; // mark the action as suspended + } + + function tryable() { return callback.call(target); } + function finalizer() { if (actionIndex !== -1) { actions[actionIndex+2] &= ~SUSPENDED; } } + + return tryFinally(tryable, finalizer); + } + + /** + Suspends multiple listeners during a callback. + + @method suspendListeners + @for Ember + + @private + @param obj + @param {Array} eventName Array of event names + @param {Object|Function} targetOrMethod A target object or a function + @param {Function|String} method A function or the name of a function to be called on `target` + @param {Function} callback + */ + function suspendListeners(obj, eventNames, target, method, callback) { + if (!method && 'function' === typeof target) { + method = target; + target = null; + } + + var suspendedActions = [], + actionsList = [], + eventName, actions, i, l; + + for (i=0, l=eventNames.length; i= 0; i -= 3) { // looping in reverse for once listeners + var target = actions[i], method = actions[i+1], flags = actions[i+2]; + if (!method) { continue; } + if (flags & SUSPENDED) { continue; } + if (flags & ONCE) { removeListener(obj, eventName, target, method); } + if (!target) { target = obj; } + if ('string' === typeof method) { + if (params) { + applyStr(target, method, params); + } else { + target[method](); + } + } else { + if (params) { + apply(target, method, params); + } else { + method.call(target); + } + } + } + return true; + } + + /** + @private + @method hasListeners + @for Ember + @param obj + @param {String} eventName + */ + function hasListeners(obj, eventName) { + var meta = obj[META_KEY], + actions = meta && meta.listeners && meta.listeners[eventName]; + + return !!(actions && actions.length); + } + + /** + @private + @method listenersFor + @for Ember + @param obj + @param {String} eventName + */ + function listenersFor(obj, eventName) { + var ret = []; + var meta = obj[META_KEY], + actions = meta && meta.listeners && meta.listeners[eventName]; + + if (!actions) { return ret; } + + for (var i = 0, l = actions.length; i < l; i += 3) { + var target = actions[i], + method = actions[i+1]; + ret.push([target, method]); + } + + return ret; + } + + /** + Define a property as a function that should be executed when + a specified event or events are triggered. + + + ``` javascript + var Job = Ember.Object.extend({ + logCompleted: Ember.on('completed', function(){ + console.log('Job completed!'); + }) + }); + var job = Job.create(); + Ember.sendEvent(job, 'completed'); // Logs "Job completed!" + ``` + + @method on + @for Ember + @param {String} eventNames* + @param {Function} func + @return func + */ + function on(){ + var func = a_slice.call(arguments, -1)[0], + events = a_slice.call(arguments, 0, -1); + func.__ember_listens__ = events; + return func; + }; + + __exports__.on = on; + __exports__.addListener = addListener; + __exports__.removeListener = removeListener; + __exports__.suspendListener = suspendListener; + __exports__.suspendListeners = suspendListeners; + __exports__.sendEvent = sendEvent; + __exports__.hasListeners = hasListeners; + __exports__.watchedEvents = watchedEvents; + __exports__.listenersFor = listenersFor; + __exports__.listenersDiff = listenersDiff; + __exports__.listenersUnion = listenersUnion; + }); +define("ember-metal/expand_properties", + ["ember-metal/enumerable_utils","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var EnumerableUtils = __dependency1__["default"]; + + /** + @module ember-metal + */ + + var forEach = EnumerableUtils.forEach, + BRACE_EXPANSION = /^((?:[^\.]*\.)*)\{(.*)\}$/; + + /** + Expands `pattern`, invoking `callback` for each expansion. + + The only pattern supported is brace-expansion, anything else will be passed + once to `callback` directly. Brace expansion can only appear at the end of a + pattern, for example as the last item in a chain. + + Example + ```js + function echo(arg){ console.log(arg); } + + Ember.expandProperties('foo.bar', echo); //=> 'foo.bar' + Ember.expandProperties('{foo,bar}', echo); //=> 'foo', 'bar' + Ember.expandProperties('foo.{bar,baz}', echo); //=> 'foo.bar', 'foo.baz' + Ember.expandProperties('{foo,bar}.baz', echo); //=> '{foo,bar}.baz' + ``` + + @method + @private + @param {string} pattern The property pattern to expand. + @param {function} callback The callback to invoke. It is invoked once per + expansion, and is passed the expansion. + */ + function expandProperties(pattern, callback) { + var match, prefix, list; + + if (match = BRACE_EXPANSION.exec(pattern)) { + prefix = match[1]; + list = match[2]; + + forEach(list.split(','), function (suffix) { + callback(prefix + suffix); + }); + } else { + callback(pattern); + } + }; + + __exports__["default"] = expandProperties; + }); +define("ember-metal/get_properties", + ["ember-metal/property_get","ember-metal/utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var typeOf = __dependency2__.typeOf; + + /** + To get multiple properties at once, call `Ember.getProperties` + with an object followed by a list of strings or an array: + + ```javascript + Ember.getProperties(record, 'firstName', 'lastName', 'zipCode'); + // { firstName: 'John', lastName: 'Doe', zipCode: '10011' } + ``` + + is equivalent to: + + ```javascript + Ember.getProperties(record, ['firstName', 'lastName', 'zipCode']); + // { firstName: 'John', lastName: 'Doe', zipCode: '10011' } + ``` + + @method getProperties + @param obj + @param {String...|Array} list of keys to get + @return {Hash} + */ + function getProperties(obj) { + var ret = {}, + propertyNames = arguments, + i = 1; + + if (arguments.length === 2 && typeOf(arguments[1]) === 'array') { + i = 0; + propertyNames = arguments[1]; + } + for(var len = propertyNames.length; i < len; i++) { + ret[propertyNames[i]] = get(obj, propertyNames[i]); + } + return ret; + }; + + __exports__["default"] = getProperties; + }); +define("ember-metal/instrumentation", + ["ember-metal/core","ember-metal/utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var tryCatchFinally = __dependency2__.tryCatchFinally; + + /** + The purpose of the Ember Instrumentation module is + to provide efficient, general-purpose instrumentation + for Ember. + + Subscribe to a listener by using `Ember.subscribe`: + + ```javascript + Ember.subscribe("render", { + before: function(name, timestamp, payload) { + + }, + + after: function(name, timestamp, payload) { + + } + }); + ``` + + If you return a value from the `before` callback, that same + value will be passed as a fourth parameter to the `after` + callback. + + Instrument a block of code by using `Ember.instrument`: + + ```javascript + Ember.instrument("render.handlebars", payload, function() { + // rendering logic + }, binding); + ``` + + Event names passed to `Ember.instrument` are namespaced + by periods, from more general to more specific. Subscribers + can listen for events by whatever level of granularity they + are interested in. + + In the above example, the event is `render.handlebars`, + and the subscriber listened for all events beginning with + `render`. It would receive callbacks for events named + `render`, `render.handlebars`, `render.container`, or + even `render.handlebars.layout`. + + @class Instrumentation + @namespace Ember + @static + */ + var subscribers = [], cache = {}; + + var populateListeners = function(name) { + var listeners = [], subscriber; + + for (var i=0, l=subscribers.length; i -1) { + list.splice(index, 1); + } + }, + + /** + @method isEmpty + @return {Boolean} + */ + isEmpty: function() { + return this.list.length === 0; + }, + + /** + @method has + @param obj + @return {Boolean} + */ + has: function(obj) { + var guid = guidFor(obj), + presenceSet = this.presenceSet; + + return guid in presenceSet; + }, + + /** + @method forEach + @param {Function} fn + @param self + */ + forEach: function(fn, self) { + // allow mutation during iteration + var list = this.toArray(); + + for (var i = 0, j = list.length; i < j; i++) { + fn.call(self, list[i]); + } + }, + + /** + @method toArray + @return {Array} + */ + toArray: function() { + return this.list.slice(); + }, + + /** + @method copy + @return {Ember.OrderedSet} + */ + copy: function() { + var set = new OrderedSet(); + + set.presenceSet = copy(this.presenceSet); + set.list = this.toArray(); + + return set; + } + }; + + /** + A Map stores values indexed by keys. Unlike JavaScript's + default Objects, the keys of a Map can be any JavaScript + object. + + Internally, a Map has two data structures: + + 1. `keys`: an OrderedSet of all of the existing keys + 2. `values`: a JavaScript Object indexed by the `Ember.guidFor(key)` + + When a key/value pair is added for the first time, we + add the key to the `keys` OrderedSet, and create or + replace an entry in `values`. When an entry is deleted, + we delete its entry in `keys` and `values`. + + @class Map + @namespace Ember + @private + @constructor + */ + var Map = Ember.Map = function() { + this.keys = OrderedSet.create(); + this.values = {}; + }; + + /** + @method create + @static + */ + Map.create = function() { + return new Map(); + }; + + Map.prototype = { + /** + This property will change as the number of objects in the map changes. + + @property length + @type number + @default 0 + */ + length: 0, + + + /** + Retrieve the value associated with a given key. + + @method get + @param {*} key + @return {*} the value associated with the key, or `undefined` + */ + get: function(key) { + var values = this.values, + guid = guidFor(key); + + return values[guid]; + }, + + /** + Adds a value to the map. If a value for the given key has already been + provided, the new value will replace the old value. + + @method set + @param {*} key + @param {*} value + */ + set: function(key, value) { + var keys = this.keys, + values = this.values, + guid = guidFor(key); + + keys.add(key); + values[guid] = value; + set(this, 'length', keys.list.length); + }, + + /** + Removes a value from the map for an associated key. + + @method remove + @param {*} key + @return {Boolean} true if an item was removed, false otherwise + */ + remove: function(key) { + // don't use ES6 "delete" because it will be annoying + // to use in browsers that are not ES6 friendly; + var keys = this.keys, + values = this.values, + guid = guidFor(key); + + if (values.hasOwnProperty(guid)) { + keys.remove(key); + delete values[guid]; + set(this, 'length', keys.list.length); + return true; + } else { + return false; + } + }, + + /** + Check whether a key is present. + + @method has + @param {*} key + @return {Boolean} true if the item was present, false otherwise + */ + has: function(key) { + var values = this.values, + guid = guidFor(key); + + return values.hasOwnProperty(guid); + }, + + /** + Iterate over all the keys and values. Calls the function once + for each key, passing in the key and value, in that order. + + The keys are guaranteed to be iterated over in insertion order. + + @method forEach + @param {Function} callback + @param {*} self if passed, the `this` value inside the + callback. By default, `this` is the map. + */ + forEach: function(callback, self) { + var keys = this.keys, + values = this.values; + + keys.forEach(function(key) { + var guid = guidFor(key); + callback.call(self, key, values[guid]); + }); + }, + + /** + @method copy + @return {Ember.Map} + */ + copy: function() { + return copyMap(this, new Map()); + } + }; + + /** + @class MapWithDefault + @namespace Ember + @extends Ember.Map + @private + @constructor + @param [options] + @param {*} [options.defaultValue] + */ + function MapWithDefault(options) { + Map.call(this); + this.defaultValue = options.defaultValue; + }; + + /** + @method create + @static + @param [options] + @param {*} [options.defaultValue] + @return {Ember.MapWithDefault|Ember.Map} If options are passed, returns + `Ember.MapWithDefault` otherwise returns `Ember.Map` + */ + MapWithDefault.create = function(options) { + if (options) { + return new MapWithDefault(options); + } else { + return new Map(); + } + }; + + MapWithDefault.prototype = create(Map.prototype); + + /** + Retrieve the value associated with a given key. + + @method get + @param {*} key + @return {*} the value associated with the key, or the default value + */ + MapWithDefault.prototype.get = function(key) { + var hasValue = this.has(key); + + if (hasValue) { + return Map.prototype.get.call(this, key); + } else { + var defaultValue = this.defaultValue(key); + this.set(key, defaultValue); + return defaultValue; + } + }; + + /** + @method copy + @return {Ember.MapWithDefault} + */ + MapWithDefault.prototype.copy = function() { + return copyMap(this, new MapWithDefault({ + defaultValue: this.defaultValue + })); + }; + + __exports__.OrderedSet = OrderedSet; + __exports__.Map = Map; + __exports__.MapWithDefault = MapWithDefault; + }); +define("ember-metal/merge", + ["exports"], + function(__exports__) { + "use strict"; + /** + Merge the contents of two objects together into the first object. + + ```javascript + Ember.merge({first: 'Tom'}, {last: 'Dale'}); // {first: 'Tom', last: 'Dale'} + var a = {first: 'Yehuda'}, b = {last: 'Katz'}; + Ember.merge(a, b); // a == {first: 'Yehuda', last: 'Katz'}, b == {last: 'Katz'} + ``` + + @method merge + @for Ember + @param {Object} original The object to merge into + @param {Object} updates The object to copy properties from + @return {Object} + */ + function merge(original, updates) { + for (var prop in updates) { + if (!updates.hasOwnProperty(prop)) { continue; } + original[prop] = updates[prop]; + } + return original; + }; + + __exports__["default"] = merge; + }); +define("ember-metal/mixin", + ["ember-metal/core","ember-metal/merge","ember-metal/array","ember-metal/platform","ember-metal/utils","ember-metal/expand_properties","ember-metal/properties","ember-metal/computed","ember-metal/binding","ember-metal/observer","ember-metal/events","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-metal + */ + + var Ember = __dependency1__["default"]; + // warn, assert, wrap, et; + var merge = __dependency2__["default"]; + var map = __dependency3__.map; + var indexOf = __dependency3__.indexOf; + var forEach = __dependency3__.forEach; + var create = __dependency4__.create; + var guidFor = __dependency5__.guidFor; + var meta = __dependency5__.meta; + var META_KEY = __dependency5__.META_KEY; + var wrap = __dependency5__.wrap; + var makeArray = __dependency5__.makeArray; + var apply = __dependency5__.apply; + var expandProperties = __dependency6__["default"]; + var Descriptor = __dependency7__.Descriptor; + var defineProperty = __dependency7__.defineProperty; + var ComputedProperty = __dependency8__.ComputedProperty; + var Binding = __dependency9__.Binding; + var addObserver = __dependency10__.addObserver; + var removeObserver = __dependency10__.removeObserver; + var addBeforeObserver = __dependency10__.addBeforeObserver; + var removeBeforeObserver = __dependency10__.removeBeforeObserver; + var addListener = __dependency11__.addListener; + var removeListener = __dependency11__.removeListener; + + var REQUIRED, Alias, + a_map = map, + a_indexOf = indexOf, + a_forEach = forEach, + a_slice = [].slice, + o_create = create, + defineProperty = defineProperty, + metaFor = meta; + + function superFunction(){ + var ret, func = this.__nextSuper; + if (func) { + this.__nextSuper = null; + ret = apply(this, func, arguments); + this.__nextSuper = func; + } + return ret; + } + + function mixinsMeta(obj) { + var m = metaFor(obj, true), ret = m.mixins; + if (!ret) { + ret = m.mixins = {}; + } else if (!m.hasOwnProperty('mixins')) { + ret = m.mixins = o_create(ret); + } + return ret; + } + + function initMixin(mixin, args) { + if (args && args.length > 0) { + mixin.mixins = a_map.call(args, function(x) { + if (x instanceof Mixin) { return x; } + + // Note: Manually setup a primitive mixin here. This is the only + // way to actually get a primitive mixin. This way normal creation + // of mixins will give you combined mixins... + var mixin = new Mixin(); + mixin.properties = x; + return mixin; + }); + } + return mixin; + } + + function isMethod(obj) { + return 'function' === typeof obj && + obj.isMethod !== false && + obj !== Boolean && obj !== Object && obj !== Number && obj !== Array && obj !== Date && obj !== String; + } + + var CONTINUE = {}; + + function mixinProperties(mixinsMeta, mixin) { + var guid; + + if (mixin instanceof Mixin) { + guid = guidFor(mixin); + if (mixinsMeta[guid]) { return CONTINUE; } + mixinsMeta[guid] = mixin; + return mixin.properties; + } else { + return mixin; // apply anonymous mixin properties + } + } + + function concatenatedMixinProperties(concatProp, props, values, base) { + var concats; + + // reset before adding each new mixin to pickup concats from previous + concats = values[concatProp] || base[concatProp]; + if (props[concatProp]) { + concats = concats ? concats.concat(props[concatProp]) : props[concatProp]; + } + + return concats; + } + + function giveDescriptorSuper(meta, key, property, values, descs) { + var superProperty; + + // Computed properties override methods, and do not call super to them + if (values[key] === undefined) { + // Find the original descriptor in a parent mixin + superProperty = descs[key]; + } + + // If we didn't find the original descriptor in a parent mixin, find + // it on the original object. + superProperty = superProperty || meta.descs[key]; + + if (!superProperty || !(superProperty instanceof ComputedProperty)) { + return property; + } + + // Since multiple mixins may inherit from the same parent, we need + // to clone the computed property so that other mixins do not receive + // the wrapped version. + property = o_create(property); + property.func = wrap(property.func, superProperty.func); + + return property; + } + + function giveMethodSuper(obj, key, method, values, descs) { + var superMethod; + + // Methods overwrite computed properties, and do not call super to them. + if (descs[key] === undefined) { + // Find the original method in a parent mixin + superMethod = values[key]; + } + + // If we didn't find the original value in a parent mixin, find it in + // the original object + superMethod = superMethod || obj[key]; + + // Only wrap the new method if the original method was a function + if ('function' !== typeof superMethod) { + return method; + } + + return wrap(method, superMethod); + } + + function applyConcatenatedProperties(obj, key, value, values) { + var baseValue = values[key] || obj[key]; + + if (baseValue) { + if ('function' === typeof baseValue.concat) { + return baseValue.concat(value); + } else { + return makeArray(baseValue).concat(value); + } + } else { + return makeArray(value); + } + } + + function applyMergedProperties(obj, key, value, values) { + var baseValue = values[key] || obj[key]; + + if (!baseValue) { return value; } + + var newBase = merge({}, baseValue), + hasFunction = false; + + for (var prop in value) { + if (!value.hasOwnProperty(prop)) { continue; } + + var propValue = value[prop]; + if (isMethod(propValue)) { + // TODO: support for Computed Properties, etc? + hasFunction = true; + newBase[prop] = giveMethodSuper(obj, prop, propValue, baseValue, {}); + } else { + newBase[prop] = propValue; + } + } + + if (hasFunction) { + newBase._super = superFunction; + } + + return newBase; + } + + function addNormalizedProperty(base, key, value, meta, descs, values, concats, mergings) { + if (value instanceof Descriptor) { + if (value === REQUIRED && descs[key]) { return CONTINUE; } + + // Wrap descriptor function to implement + // __nextSuper() if needed + if (value.func) { + value = giveDescriptorSuper(meta, key, value, values, descs); + } + + descs[key] = value; + values[key] = undefined; + } else { + if ((concats && a_indexOf.call(concats, key) >= 0) || + key === 'concatenatedProperties' || + key === 'mergedProperties') { + value = applyConcatenatedProperties(base, key, value, values); + } else if ((mergings && a_indexOf.call(mergings, key) >= 0)) { + value = applyMergedProperties(base, key, value, values); + } else if (isMethod(value)) { + value = giveMethodSuper(base, key, value, values, descs); + } + + descs[key] = undefined; + values[key] = value; + } + } + + function mergeMixins(mixins, m, descs, values, base, keys) { + var mixin, props, key, concats, mergings, meta; + + function removeKeys(keyName) { + delete descs[keyName]; + delete values[keyName]; + } + + for(var i=0, l=mixins.length; i= 0) { + if (_detect(mixins[loc], targetMixin, seen)) { return true; } + } + return false; + } + + /** + @method detect + @param obj + @return {Boolean} + */ + MixinPrototype.detect = function(obj) { + if (!obj) { return false; } + if (obj instanceof Mixin) { return _detect(obj, this, {}); } + var m = obj[META_KEY], + mixins = m && m.mixins; + if (mixins) { + return !!mixins[guidFor(this)]; + } + return false; + }; + + MixinPrototype.without = function() { + var ret = new Mixin(this); + ret._without = a_slice.call(arguments); + return ret; + }; + + function _keys(ret, mixin, seen) { + if (seen[guidFor(mixin)]) { return; } + seen[guidFor(mixin)] = true; + + if (mixin.properties) { + var props = mixin.properties; + for (var key in props) { + if (props.hasOwnProperty(key)) { ret[key] = true; } + } + } else if (mixin.mixins) { + a_forEach.call(mixin.mixins, function(x) { _keys(ret, x, seen); }); + } + } + + MixinPrototype.keys = function() { + var keys = {}, seen = {}, ret = []; + _keys(keys, this, seen); + for(var key in keys) { + if (keys.hasOwnProperty(key)) { ret.push(key); } + } + return ret; + }; + + // returns the mixins currently applied to the specified object + // TODO: Make Ember.mixin + Mixin.mixins = function(obj) { + var m = obj[META_KEY], + mixins = m && m.mixins, ret = []; + + if (!mixins) { return ret; } + + for (var key in mixins) { + var mixin = mixins[key]; + + // skip primitive mixins since these are always anonymous + if (!mixin.properties) { ret.push(mixin); } + } + + return ret; + }; + + REQUIRED = new Descriptor(); + REQUIRED.toString = function() { return '(Required Property)'; }; + + /** + Denotes a required property for a mixin + + @method required + @for Ember + */ + function required() { + return REQUIRED; + }; + + Alias = function(methodName) { + this.methodName = methodName; + }; + Alias.prototype = new Descriptor(); + + /** + Makes a method available via an additional name. + + ```javascript + App.Person = Ember.Object.extend({ + name: function() { + return 'Tomhuda Katzdale'; + }, + moniker: Ember.aliasMethod('name') + }); + + var goodGuy = App.Person.create() + ``` + + @method aliasMethod + @for Ember + @param {String} methodName name of the method to alias + @return {Ember.Descriptor} + */ + function aliasMethod(methodName) { + return new Alias(methodName); + }; + + // .......................................................... + // OBSERVER HELPER + // + + /** + Specify a method that observes property changes. + + ```javascript + Ember.Object.extend({ + valueObserver: Ember.observer('value', function() { + // Executes whenever the "value" property changes + }) + }); + ``` + + In the future this method may become asynchronous. If you want to ensure + synchronous behavior, use `immediateObserver`. + + Also available as `Function.prototype.observes` if prototype extensions are + enabled. + + @method observer + @for Ember + @param {String} propertyNames* + @param {Function} func + @return func + */ + function observer() { + var func = a_slice.call(arguments, -1)[0]; + var paths; + + var addWatchedProperty = function (path) { paths.push(path); }; + var _paths = a_slice.call(arguments, 0, -1); + + if (typeof func !== "function") { + // revert to old, soft-deprecated argument ordering + + func = arguments[0]; + _paths = a_slice.call(arguments, 1); + } + + paths = []; + + for (var i=0; i<_paths.length; ++i) { + expandProperties(_paths[i], addWatchedProperty); + } + + if (typeof func !== "function") { + throw new Ember.Error("Ember.observer called without a function"); + } + + func.__ember_observes__ = paths; + return func; + }; + + /** + Specify a method that observes property changes. + + ```javascript + Ember.Object.extend({ + valueObserver: Ember.immediateObserver('value', function() { + // Executes whenever the "value" property changes + }) + }); + ``` + + In the future, `Ember.observer` may become asynchronous. In this event, + `Ember.immediateObserver` will maintain the synchronous behavior. + + Also available as `Function.prototype.observesImmediately` if prototype extensions are + enabled. + + @method immediateObserver + @for Ember + @param {String} propertyNames* + @param {Function} func + @return func + */ + function immediateObserver() { + for (var i=0, l=arguments.length; i this.changingFrom ? 'green' : 'red'; + // logic + } + }), + + friendsDidChange: Ember.observer('friends.@each.name', function(obj, keyName) { + // some logic + // obj.get(keyName) returns friends array + }) + }); + ``` + + Also available as `Function.prototype.observesBefore` if prototype extensions are + enabled. + + @method beforeObserver + @for Ember + @param {String} propertyNames* + @param {Function} func + @return func + */ + function beforeObserver() { + var func = a_slice.call(arguments, -1)[0]; + var paths; + + var addWatchedProperty = function(path) { paths.push(path); }; + + var _paths = a_slice.call(arguments, 0, -1); + + if (typeof func !== "function") { + // revert to old, soft-deprecated argument ordering + + func = arguments[0]; + _paths = a_slice.call(arguments, 1); + } + + paths = []; + + for (var i=0; i<_paths.length; ++i) { + expandProperties(_paths[i], addWatchedProperty); + } + + if (typeof func !== "function") { + throw new Ember.Error("Ember.beforeObserver called without a function"); + } + + func.__ember_observesBefore__ = paths; + return func; + }; + + __exports__.IS_BINDING = IS_BINDING; + __exports__.mixin = mixin; + __exports__.Mixin = Mixin; + __exports__.required = required; + __exports__.aliasMethod = aliasMethod; + __exports__.observer = observer; + __exports__.immediateObserver = immediateObserver; + __exports__.beforeObserver = beforeObserver; + }); +define("ember-metal/observer", + ["ember-metal/watching","ember-metal/array","ember-metal/events","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var watch = __dependency1__.watch; + var unwatch = __dependency1__.unwatch; + var map = __dependency2__.map; + var listenersFor = __dependency3__.listenersFor; + var addListener = __dependency3__.addListener; + var removeListener = __dependency3__.removeListener; + var suspendListeners = __dependency3__.suspendListeners; + var suspendListener = __dependency3__.suspendListener; + /** + @module ember-metal + */ + + var AFTER_OBSERVERS = ':change', + BEFORE_OBSERVERS = ':before'; + + function changeEvent(keyName) { + return keyName+AFTER_OBSERVERS; + } + + function beforeEvent(keyName) { + return keyName+BEFORE_OBSERVERS; + } + + /** + @method addObserver + @for Ember + @param obj + @param {String} path + @param {Object|Function} targetOrMethod + @param {Function|String} [method] + */ + function addObserver(obj, _path, target, method) { + addListener(obj, changeEvent(_path), target, method); + watch(obj, _path); + + return this; + }; + + function observersFor(obj, path) { + return listenersFor(obj, changeEvent(path)); + }; + + /** + @method removeObserver + @for Ember + @param obj + @param {String} path + @param {Object|Function} targetOrMethod + @param {Function|String} [method] + */ + function removeObserver(obj, _path, target, method) { + unwatch(obj, _path); + removeListener(obj, changeEvent(_path), target, method); + + return this; + }; + + /** + @method addBeforeObserver + @for Ember + @param obj + @param {String} path + @param {Object|Function} targetOrMethod + @param {Function|String} [method] + */ + function addBeforeObserver(obj, _path, target, method) { + addListener(obj, beforeEvent(_path), target, method); + watch(obj, _path); + + return this; + }; + + // Suspend observer during callback. + // + // This should only be used by the target of the observer + // while it is setting the observed path. + function _suspendBeforeObserver(obj, path, target, method, callback) { + return suspendListener(obj, beforeEvent(path), target, method, callback); + }; + + function _suspendObserver(obj, path, target, method, callback) { + return suspendListener(obj, changeEvent(path), target, method, callback); + }; + + function _suspendBeforeObservers(obj, paths, target, method, callback) { + var events = map.call(paths, beforeEvent); + return suspendListeners(obj, events, target, method, callback); + }; + + function _suspendObservers(obj, paths, target, method, callback) { + var events = map.call(paths, changeEvent); + return suspendListeners(obj, events, target, method, callback); + }; + + function beforeObserversFor(obj, path) { + return listenersFor(obj, beforeEvent(path)); + }; + + /** + @method removeBeforeObserver + @for Ember + @param obj + @param {String} path + @param {Object|Function} targetOrMethod + @param {Function|String} [method] + */ + function removeBeforeObserver(obj, _path, target, method) { + unwatch(obj, _path); + removeListener(obj, beforeEvent(_path), target, method); + + return this; + }; + + __exports__.addObserver = addObserver; + __exports__.observersFor = observersFor; + __exports__.removeObserver = removeObserver; + __exports__.addBeforeObserver = addBeforeObserver; + __exports__._suspendBeforeObserver = _suspendBeforeObserver; + __exports__._suspendObserver = _suspendObserver; + __exports__._suspendBeforeObservers = _suspendBeforeObservers; + __exports__._suspendObservers = _suspendObservers; + __exports__.beforeObserversFor = beforeObserversFor; + __exports__.removeBeforeObserver = removeBeforeObserver; + }); +define("ember-metal/observer_set", + ["ember-metal/utils","ember-metal/events","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var guidFor = __dependency1__.guidFor; + var sendEvent = __dependency2__.sendEvent; + + /* + this.observerSet = { + [senderGuid]: { // variable name: `keySet` + [keyName]: listIndex + } + }, + this.observers = [ + { + sender: obj, + keyName: keyName, + eventName: eventName, + listeners: [ + [target, method, flags] + ] + }, + ... + ] + */ + function ObserverSet() { + this.clear(); + }; + + ObserverSet.prototype.add = function(sender, keyName, eventName) { + var observerSet = this.observerSet, + observers = this.observers, + senderGuid = guidFor(sender), + keySet = observerSet[senderGuid], + index; + + if (!keySet) { + observerSet[senderGuid] = keySet = {}; + } + index = keySet[keyName]; + if (index === undefined) { + index = observers.push({ + sender: sender, + keyName: keyName, + eventName: eventName, + listeners: [] + }) - 1; + keySet[keyName] = index; + } + return observers[index].listeners; + }; + + ObserverSet.prototype.flush = function() { + var observers = this.observers, i, len, observer, sender; + this.clear(); + for (i=0, len=observers.length; i < len; ++i) { + observer = observers[i]; + sender = observer.sender; + if (sender.isDestroying || sender.isDestroyed) { continue; } + sendEvent(sender, observer.eventName, [sender, observer.keyName], observer.listeners); + } + }; + + ObserverSet.prototype.clear = function() { + this.observerSet = {}; + this.observers = []; + }; + + __exports__["default"] = ObserverSet; + }); +define("ember-metal/platform", + ["ember-metal/core","exports"], + function(__dependency1__, __exports__) { + "use strict"; + /*globals Node */ + + var Ember = __dependency1__["default"]; + + /** + @module ember-metal + */ + + /** + Platform specific methods and feature detectors needed by the framework. + + @class platform + @namespace Ember + @static + */ + // TODO remove this + var platform = {}; + + /** + Identical to `Object.create()`. Implements if not available natively. + + @method create + @for Ember + */ + var create = Object.create; + + // IE8 has Object.create but it couldn't treat property descriptors. + if (create) { + if (create({a: 1}, {a: {value: 2}}).a !== 2) { + create = null; + } + } + + // STUB_OBJECT_CREATE allows us to override other libraries that stub + // Object.create different than we would prefer + if (!create || Ember.ENV.STUB_OBJECT_CREATE) { + var K = function() {}; + + create = function(obj, props) { + K.prototype = obj; + obj = new K(); + if (props) { + K.prototype = obj; + for (var prop in props) { + K.prototype[prop] = props[prop].value; + } + obj = new K(); + } + K.prototype = null; + + return obj; + }; + + create.isSimulated = true; + } + + var defineProperty = Object.defineProperty; + var canRedefineProperties, canDefinePropertyOnDOM; + + // Catch IE8 where Object.defineProperty exists but only works on DOM elements + if (defineProperty) { + try { + defineProperty({}, 'a',{get:function() {}}); + } catch (e) { + defineProperty = null; + } + } + + if (defineProperty) { + // Detects a bug in Android <3.2 where you cannot redefine a property using + // Object.defineProperty once accessors have already been set. + canRedefineProperties = (function() { + var obj = {}; + + defineProperty(obj, 'a', { + configurable: true, + enumerable: true, + get: function() { }, + set: function() { } + }); + + defineProperty(obj, 'a', { + configurable: true, + enumerable: true, + writable: true, + value: true + }); + + return obj.a === true; + })(); + + // This is for Safari 5.0, which supports Object.defineProperty, but not + // on DOM nodes. + canDefinePropertyOnDOM = (function() { + try { + defineProperty(document.createElement('div'), 'definePropertyOnDOM', {}); + return true; + } catch(e) { } + + return false; + })(); + + if (!canRedefineProperties) { + defineProperty = null; + } else if (!canDefinePropertyOnDOM) { + defineProperty = function(obj, keyName, desc) { + var isNode; + + if (typeof Node === "object") { + isNode = obj instanceof Node; + } else { + isNode = typeof obj === "object" && typeof obj.nodeType === "number" && typeof obj.nodeName === "string"; + } + + if (isNode) { + // TODO: Should we have a warning here? + return (obj[keyName] = desc.value); + } else { + return Object.defineProperty(obj, keyName, desc); + } + }; + } + } + + /** + @class platform + @namespace Ember + */ + + /** + Identical to `Object.defineProperty()`. Implements as much functionality + as possible if not available natively. + + @method defineProperty + @param {Object} obj The object to modify + @param {String} keyName property name to modify + @param {Object} desc descriptor hash + @return {void} + */ + platform.defineProperty = defineProperty; + + /** + Set to true if the platform supports native getters and setters. + + @property hasPropertyAccessors + @final + */ + platform.hasPropertyAccessors = true; + + if (!platform.defineProperty) { + platform.hasPropertyAccessors = false; + + platform.defineProperty = function(obj, keyName, desc) { + if (!desc.get) { obj[keyName] = desc.value; } + }; + + platform.defineProperty.isSimulated = true; + } + + if (Ember.ENV.MANDATORY_SETTER && !platform.hasPropertyAccessors) { + Ember.ENV.MANDATORY_SETTER = false; + } + + __exports__.create = create; + __exports__.platform = platform; + }); +define("ember-metal/properties", + ["ember-metal/core","ember-metal/utils","ember-metal/platform","ember-metal/property_events","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember-metal + */ + + var Ember = __dependency1__["default"]; + var META_KEY = __dependency2__.META_KEY; + var meta = __dependency2__.meta; + var platform = __dependency3__.platform; + var overrideChains = __dependency4__.overrideChains; + var metaFor = meta, + objectDefineProperty = platform.defineProperty; + + var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER; + + // .......................................................... + // DESCRIPTOR + // + + /** + Objects of this type can implement an interface to respond to requests to + get and set. The default implementation handles simple properties. + + You generally won't need to create or subclass this directly. + + @class Descriptor + @namespace Ember + @private + @constructor + */ + function Descriptor() {}; + + // .......................................................... + // DEFINING PROPERTIES API + // + + var MANDATORY_SETTER_FUNCTION = Ember.MANDATORY_SETTER_FUNCTION = function(value) { + Ember.assert("You must use Ember.set() to access this property (of " + this + ")", false); + }; + + var DEFAULT_GETTER_FUNCTION = Ember.DEFAULT_GETTER_FUNCTION = function(name) { + return function() { + var meta = this[META_KEY]; + return meta && meta.values[name]; + }; + }; + + /** + NOTE: This is a low-level method used by other parts of the API. You almost + never want to call this method directly. Instead you should use + `Ember.mixin()` to define new properties. + + Defines a property on an object. This method works much like the ES5 + `Object.defineProperty()` method except that it can also accept computed + properties and other special descriptors. + + Normally this method takes only three parameters. However if you pass an + instance of `Ember.Descriptor` as the third param then you can pass an + optional value as the fourth parameter. This is often more efficient than + creating new descriptor hashes for each property. + + ## Examples + + ```javascript + // ES5 compatible mode + Ember.defineProperty(contact, 'firstName', { + writable: true, + configurable: false, + enumerable: true, + value: 'Charles' + }); + + // define a simple property + Ember.defineProperty(contact, 'lastName', undefined, 'Jolley'); + + // define a computed property + Ember.defineProperty(contact, 'fullName', Ember.computed(function() { + return this.firstName+' '+this.lastName; + }).property('firstName', 'lastName')); + ``` + + @private + @method defineProperty + @for Ember + @param {Object} obj the object to define this property on. This may be a prototype. + @param {String} keyName the name of the property + @param {Ember.Descriptor} [desc] an instance of `Ember.Descriptor` (typically a + computed property) or an ES5 descriptor. + You must provide this or `data` but not both. + @param {*} [data] something other than a descriptor, that will + become the explicit value of this property. + */ + function defineProperty(obj, keyName, desc, data, meta) { + var descs, existingDesc, watching, value; + + if (!meta) meta = metaFor(obj); + descs = meta.descs; + existingDesc = meta.descs[keyName]; + watching = meta.watching[keyName] > 0; + + if (existingDesc instanceof Descriptor) { + existingDesc.teardown(obj, keyName); + } + + if (desc instanceof Descriptor) { + value = desc; + + descs[keyName] = desc; + if (MANDATORY_SETTER && watching) { + objectDefineProperty(obj, keyName, { + configurable: true, + enumerable: true, + writable: true, + value: undefined // make enumerable + }); + } else { + obj[keyName] = undefined; // make enumerable + } + } else { + descs[keyName] = undefined; // shadow descriptor in proto + if (desc == null) { + value = data; + + if (MANDATORY_SETTER && watching) { + meta.values[keyName] = data; + objectDefineProperty(obj, keyName, { + configurable: true, + enumerable: true, + set: MANDATORY_SETTER_FUNCTION, + get: DEFAULT_GETTER_FUNCTION(keyName) + }); + } else { + obj[keyName] = data; + } + } else { + value = desc; + + // compatibility with ES5 + objectDefineProperty(obj, keyName, desc); + } + } + + // if key is being watched, override chains that + // were initialized with the prototype + if (watching) { overrideChains(obj, keyName, meta); } + + // The `value` passed to the `didDefineProperty` hook is + // either the descriptor or data, whichever was passed. + if (obj.didDefineProperty) { obj.didDefineProperty(obj, keyName, value); } + + return this; + }; + + __exports__.Descriptor = Descriptor; + __exports__.defineProperty = defineProperty; + }); +define("ember-metal/property_events", + ["ember-metal/utils","ember-metal/events","ember-metal/observer_set","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var META_KEY = __dependency1__.META_KEY; + var guidFor = __dependency1__.guidFor; + var tryFinally = __dependency1__.tryFinally; + var sendEvent = __dependency2__.sendEvent; + var listenersUnion = __dependency2__.listenersUnion; + var listenersDiff = __dependency2__.listenersDiff; + var ObserverSet = __dependency3__["default"]; + + var beforeObserverSet = new ObserverSet(), + observerSet = new ObserverSet(), + deferred = 0; + + // .......................................................... + // PROPERTY CHANGES + // + + /** + This function is called just before an object property is about to change. + It will notify any before observers and prepare caches among other things. + + Normally you will not need to call this method directly but if for some + reason you can't directly watch a property you can invoke this method + manually along with `Ember.propertyDidChange()` which you should call just + after the property value changes. + + @method propertyWillChange + @for Ember + @param {Object} obj The object with the property that will change + @param {String} keyName The property key (or path) that will change. + @return {void} + */ + function propertyWillChange(obj, keyName) { + var m = obj[META_KEY], + watching = (m && m.watching[keyName] > 0) || keyName === 'length', + proto = m && m.proto, + desc = m && m.descs[keyName]; + + if (!watching) { return; } + if (proto === obj) { return; } + if (desc && desc.willChange) { desc.willChange(obj, keyName); } + dependentKeysWillChange(obj, keyName, m); + chainsWillChange(obj, keyName, m); + notifyBeforeObservers(obj, keyName); + } + + /** + This function is called just after an object property has changed. + It will notify any observers and clear caches among other things. + + Normally you will not need to call this method directly but if for some + reason you can't directly watch a property you can invoke this method + manually along with `Ember.propertyWillChange()` which you should call just + before the property value changes. + + @method propertyDidChange + @for Ember + @param {Object} obj The object with the property that will change + @param {String} keyName The property key (or path) that will change. + @return {void} + */ + function propertyDidChange(obj, keyName) { + var m = obj[META_KEY], + watching = (m && m.watching[keyName] > 0) || keyName === 'length', + proto = m && m.proto, + desc = m && m.descs[keyName]; + + if (proto === obj) { return; } + + // shouldn't this mean that we're watching this key? + if (desc && desc.didChange) { desc.didChange(obj, keyName); } + if (!watching && keyName !== 'length') { return; } + + dependentKeysDidChange(obj, keyName, m); + chainsDidChange(obj, keyName, m, false); + notifyObservers(obj, keyName); + } + + var WILL_SEEN, DID_SEEN; + + // called whenever a property is about to change to clear the cache of any dependent keys (and notify those properties of changes, etc...) + function dependentKeysWillChange(obj, depKey, meta) { + if (obj.isDestroying) { return; } + + var seen = WILL_SEEN, top = !seen; + if (top) { seen = WILL_SEEN = {}; } + iterDeps(propertyWillChange, obj, depKey, seen, meta); + if (top) { WILL_SEEN = null; } + } + + // called whenever a property has just changed to update dependent keys + function dependentKeysDidChange(obj, depKey, meta) { + if (obj.isDestroying) { return; } + + var seen = DID_SEEN, top = !seen; + if (top) { seen = DID_SEEN = {}; } + iterDeps(propertyDidChange, obj, depKey, seen, meta); + if (top) { DID_SEEN = null; } + } + + function iterDeps(method, obj, depKey, seen, meta) { + var guid = guidFor(obj); + if (!seen[guid]) seen[guid] = {}; + if (seen[guid][depKey]) return; + seen[guid][depKey] = true; + + var deps = meta.deps; + deps = deps && deps[depKey]; + if (deps) { + for(var key in deps) { + var desc = meta.descs[key]; + if (desc && desc._suspended === obj) continue; + method(obj, key); + } + } + } + + function chainsWillChange(obj, keyName, m) { + if (!(m.hasOwnProperty('chainWatchers') && + m.chainWatchers[keyName])) { + return; + } + + var nodes = m.chainWatchers[keyName], + events = [], + i, l; + + for(i = 0, l = nodes.length; i < l; i++) { + nodes[i].willChange(events); + } + + for (i = 0, l = events.length; i < l; i += 2) { + propertyWillChange(events[i], events[i+1]); + } + } + + function chainsDidChange(obj, keyName, m, suppressEvents) { + if (!(m && m.hasOwnProperty('chainWatchers') && + m.chainWatchers[keyName])) { + return; + } + + var nodes = m.chainWatchers[keyName], + events = suppressEvents ? null : [], + i, l; + + for(i = 0, l = nodes.length; i < l; i++) { + nodes[i].didChange(events); + } + + if (suppressEvents) { + return; + } + + for (i = 0, l = events.length; i < l; i += 2) { + propertyDidChange(events[i], events[i+1]); + } + } + + function overrideChains(obj, keyName, m) { + chainsDidChange(obj, keyName, m, true); + }; + + /** + @method beginPropertyChanges + @chainable + @private + */ + function beginPropertyChanges() { + deferred++; + } + + /** + @method endPropertyChanges + @private + */ + function endPropertyChanges() { + deferred--; + if (deferred<=0) { + beforeObserverSet.clear(); + observerSet.flush(); + } + } + + /** + Make a series of property changes together in an + exception-safe way. + + ```javascript + Ember.changeProperties(function() { + obj1.set('foo', mayBlowUpWhenSet); + obj2.set('bar', baz); + }); + ``` + + @method changeProperties + @param {Function} callback + @param [binding] + */ + function changeProperties(cb, binding) { + beginPropertyChanges(); + tryFinally(cb, endPropertyChanges, binding); + }; + + function notifyBeforeObservers(obj, keyName) { + if (obj.isDestroying) { return; } + + var eventName = keyName + ':before', listeners, diff; + if (deferred) { + listeners = beforeObserverSet.add(obj, keyName, eventName); + diff = listenersDiff(obj, eventName, listeners); + sendEvent(obj, eventName, [obj, keyName], diff); + } else { + sendEvent(obj, eventName, [obj, keyName]); + } + } + + function notifyObservers(obj, keyName) { + if (obj.isDestroying) { return; } + + var eventName = keyName + ':change', listeners; + if (deferred) { + listeners = observerSet.add(obj, keyName, eventName); + listenersUnion(obj, eventName, listeners); + } else { + sendEvent(obj, eventName, [obj, keyName]); + } + } + + __exports__.propertyWillChange = propertyWillChange; + __exports__.propertyDidChange = propertyDidChange; + __exports__.overrideChains = overrideChains; + __exports__.beginPropertyChanges = beginPropertyChanges; + __exports__.endPropertyChanges = endPropertyChanges; + __exports__.changeProperties = changeProperties; + }); +define("ember-metal/property_get", + ["ember-metal/core","ember-metal/utils","ember-metal/error","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + /** + @module ember-metal + */ + + var Ember = __dependency1__["default"]; + var META_KEY = __dependency2__.META_KEY; + var EmberError = __dependency3__["default"]; + + var get; + + var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER; + + var IS_GLOBAL_PATH = /^([A-Z$]|([0-9][A-Z$])).*[\.]/; + var HAS_THIS = 'this.'; + var FIRST_KEY = /^([^\.]+)/; + + // .......................................................... + // GET AND SET + // + // If we are on a platform that supports accessors we can use those. + // Otherwise simulate accessors by looking up the property directly on the + // object. + + /** + Gets the value of a property on an object. If the property is computed, + the function will be invoked. If the property is not defined but the + object implements the `unknownProperty` method then that will be invoked. + + If you plan to run on IE8 and older browsers then you should use this + method anytime you want to retrieve a property on an object that you don't + know for sure is private. (Properties beginning with an underscore '_' + are considered private.) + + On all newer browsers, you only need to use this method to retrieve + properties if the property might not be defined on the object and you want + to respect the `unknownProperty` handler. Otherwise you can ignore this + method. + + Note that if the object itself is `undefined`, this method will throw + an error. + + @method get + @for Ember + @param {Object} obj The object to retrieve from. + @param {String} keyName The property key to retrieve + @return {Object} the property value or `null`. + */ + get = function get(obj, keyName) { + // Helpers that operate with 'this' within an #each + if (keyName === '') { + return obj; + } + + if (!keyName && 'string'===typeof obj) { + keyName = obj; + obj = null; + } + + Ember.assert("Cannot call get with "+ keyName +" key.", !!keyName); + Ember.assert("Cannot call get with '"+ keyName +"' on an undefined object.", obj !== undefined); + + if (obj === null) { return _getPath(obj, keyName); } + + var meta = obj[META_KEY], desc = meta && meta.descs[keyName], ret; + + if (desc === undefined && keyName.indexOf('.') !== -1) { + return _getPath(obj, keyName); + } + + if (desc) { + return desc.get(obj, keyName); + } else { + if (MANDATORY_SETTER && meta && meta.watching[keyName] > 0) { + ret = meta.values[keyName]; + } else { + ret = obj[keyName]; + } + + if (ret === undefined && + 'object' === typeof obj && !(keyName in obj) && 'function' === typeof obj.unknownProperty) { + return obj.unknownProperty(keyName); + } + + return ret; + } + }; + + // Currently used only by Ember Data tests + if (Ember.config.overrideAccessors) { + Ember.get = get; + Ember.config.overrideAccessors(); + get = Ember.get; + } + + /** + Normalizes a target/path pair to reflect that actual target/path that should + be observed, etc. This takes into account passing in global property + paths (i.e. a path beginning with a captial letter not defined on the + target). + + @private + @method normalizeTuple + @for Ember + @param {Object} target The current target. May be `null`. + @param {String} path A path on the target or a global property path. + @return {Array} a temporary array with the normalized target/path pair. + */ + function normalizeTuple(target, path) { + var hasThis = path.indexOf(HAS_THIS) === 0, + isGlobal = !hasThis && IS_GLOBAL_PATH.test(path), + key; + + if (!target || isGlobal) target = Ember.lookup; + if (hasThis) path = path.slice(5); + + if (target === Ember.lookup) { + key = path.match(FIRST_KEY)[0]; + target = get(target, key); + path = path.slice(key.length+1); + } + + // must return some kind of path to be valid else other things will break. + if (!path || path.length===0) throw new EmberError('Path cannot be empty'); + + return [ target, path ]; + }; + + function _getPath(root, path) { + var hasThis, parts, tuple, idx, len; + + // If there is no root and path is a key name, return that + // property from the global object. + // E.g. get('Ember') -> Ember + if (root === null && path.indexOf('.') === -1) { return get(Ember.lookup, path); } + + // detect complicated paths and normalize them + hasThis = path.indexOf(HAS_THIS) === 0; + + if (!root || hasThis) { + tuple = normalizeTuple(root, path); + root = tuple[0]; + path = tuple[1]; + tuple.length = 0; + } + + parts = path.split("."); + len = parts.length; + for (idx = 0; root != null && idx < len; idx++) { + root = get(root, parts[idx], true); + if (root && root.isDestroyed) { return undefined; } + } + return root; + }; + + function getWithDefault(root, key, defaultValue) { + var value = get(root, key); + + if (value === undefined) { return defaultValue; } + return value; + }; + + __exports__["default"] = get; + __exports__.get = get; + __exports__.getWithDefault = getWithDefault; + __exports__.normalizeTuple = normalizeTuple; + __exports__._getPath = _getPath; + }); +define("ember-metal/property_set", + ["ember-metal/core","ember-metal/property_get","ember-metal/utils","ember-metal/property_events","ember-metal/properties","ember-metal/error","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var getPath = __dependency2__._getPath; + var META_KEY = __dependency3__.META_KEY; + var propertyWillChange = __dependency4__.propertyWillChange; + var propertyDidChange = __dependency4__.propertyDidChange; + var defineProperty = __dependency5__.defineProperty; + var EmberError = __dependency6__["default"]; + + var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER, + IS_GLOBAL = /^([A-Z$]|([0-9][A-Z$]))/; + + /** + Sets the value of a property on an object, respecting computed properties + and notifying observers and other listeners of the change. If the + property is not defined but the object implements the `setUnknownProperty` + method then that will be invoked as well. + + @method set + @for Ember + @param {Object} obj The object to modify. + @param {String} keyName The property key to set + @param {Object} value The value to set + @return {Object} the passed value. + */ + var set = function set(obj, keyName, value, tolerant) { + if (typeof obj === 'string') { + Ember.assert("Path '" + obj + "' must be global if no obj is given.", IS_GLOBAL.test(obj)); + value = keyName; + keyName = obj; + obj = null; + } + + Ember.assert("Cannot call set with "+ keyName +" key.", !!keyName); + + if (!obj) { + return setPath(obj, keyName, value, tolerant); + } + + var meta = obj[META_KEY], desc = meta && meta.descs[keyName], + isUnknown, currentValue; + + if (desc === undefined && keyName.indexOf('.') !== -1) { + return setPath(obj, keyName, value, tolerant); + } + + Ember.assert("You need to provide an object and key to `set`.", !!obj && keyName !== undefined); + Ember.assert('calling set on destroyed object', !obj.isDestroyed); + + if (desc !== undefined) { + desc.set(obj, keyName, value); + } else { + + if (typeof obj === 'object' && obj !== null && value !== undefined && obj[keyName] === value) { + return value; + } + + isUnknown = 'object' === typeof obj && !(keyName in obj); + + // setUnknownProperty is called if `obj` is an object, + // the property does not already exist, and the + // `setUnknownProperty` method exists on the object + if (isUnknown && 'function' === typeof obj.setUnknownProperty) { + obj.setUnknownProperty(keyName, value); + } else if (meta && meta.watching[keyName] > 0) { + if (MANDATORY_SETTER) { + currentValue = meta.values[keyName]; + } else { + currentValue = obj[keyName]; + } + // only trigger a change if the value has changed + if (value !== currentValue) { + propertyWillChange(obj, keyName); + if (MANDATORY_SETTER) { + if ((currentValue === undefined && !(keyName in obj)) || !obj.propertyIsEnumerable(keyName)) { + defineProperty(obj, keyName, null, value); // setup mandatory setter + } else { + meta.values[keyName] = value; + } + } else { + obj[keyName] = value; + } + propertyDidChange(obj, keyName); + } + } else { + obj[keyName] = value; + } + } + return value; + }; + + // Currently used only by Ember Data tests + // ES6TODO: Verify still true + if (Ember.config.overrideAccessors) { + Ember.set = set; + Ember.config.overrideAccessors(); + set = Ember.set; + } + + function setPath(root, path, value, tolerant) { + var keyName; + + // get the last part of the path + keyName = path.slice(path.lastIndexOf('.') + 1); + + // get the first part of the part + path = (path === keyName) ? keyName : path.slice(0, path.length-(keyName.length+1)); + + // unless the path is this, look up the first part to + // get the root + if (path !== 'this') { + root = getPath(root, path); + } + + if (!keyName || keyName.length === 0) { + throw new EmberError('Property set failed: You passed an empty path'); + } + + if (!root) { + if (tolerant) { return; } + else { throw new EmberError('Property set failed: object in path "'+path+'" could not be found or was destroyed.'); } + } + + return set(root, keyName, value); + } + + /** + Error-tolerant form of `Ember.set`. Will not blow up if any part of the + chain is `undefined`, `null`, or destroyed. + + This is primarily used when syncing bindings, which may try to update after + an object has been destroyed. + + @method trySet + @for Ember + @param {Object} obj The object to modify. + @param {String} path The property path to set + @param {Object} value The value to set + */ + function trySet(root, path, value) { + return set(root, path, value, true); + }; + + __exports__.set = set; + __exports__.trySet = trySet; + }); +define("ember-metal/run_loop", + ["ember-metal/core","ember-metal/utils","ember-metal/array","ember-metal/property_events","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var apply = __dependency2__.apply; + var indexOf = __dependency3__.indexOf; + var beginPropertyChanges = __dependency4__.beginPropertyChanges; + var endPropertyChanges = __dependency4__.endPropertyChanges; + + var onBegin = function(current) { + run.currentRunLoop = current; + }; + + var onEnd = function(current, next) { + run.currentRunLoop = next; + }; + + // ES6TODO: should Backburner become es6? + var Backburner = requireModule('backburner').Backburner, + backburner = new Backburner(['sync', 'actions', 'destroy'], { + sync: { + before: beginPropertyChanges, + after: endPropertyChanges + }, + defaultQueue: 'actions', + onBegin: onBegin, + onEnd: onEnd + }), + slice = [].slice, + concat = [].concat; + + // .......................................................... + // run - this is ideally the only public API the dev sees + // + + /** + Runs the passed target and method inside of a RunLoop, ensuring any + deferred actions including bindings and views updates are flushed at the + end. + + Normally you should not need to invoke this method yourself. However if + you are implementing raw event handlers when interfacing with other + libraries or plugins, you should probably wrap all of your code inside this + call. + + ```javascript + run(function() { + // code to be execute within a RunLoop + }); + ``` + + @class run + @namespace Ember + @static + @constructor + @param {Object} [target] target of method to call + @param {Function|String} method Method to invoke. + May be a function or a string. If you pass a string + then it will be looked up on the passed target. + @param {Object} [args*] Any additional arguments you wish to pass to the method. + @return {Object} return value from invoking the passed function. + */ + var run = function() { + if (Ember.onerror) { + return onerror(arguments); + } else { + return apply(backburner, backburner.run, arguments); + } + }; + + function onerror(args) { + try { + return apply(backburner, backburner.run, args); + } catch(error) { + Ember.onerror(error); + } + } + /** + If no run-loop is present, it creates a new one. If a run loop is + present it will queue itself to run on the existing run-loops action + queue. + + Please note: This is not for normal usage, and should be used sparingly. + + If invoked when not within a run loop: + + ```javascript + run.join(function() { + // creates a new run-loop + }); + ``` + + Alternatively, if called within an existing run loop: + + ```javascript + run(function() { + // creates a new run-loop + run.join(function() { + // joins with the existing run-loop, and queues for invocation on + // the existing run-loops action queue. + }); + }); + ``` + + @method join + @namespace Ember + @param {Object} [target] target of method to call + @param {Function|String} method Method to invoke. + May be a function or a string. If you pass a string + then it will be looked up on the passed target. + @param {Object} [args*] Any additional arguments you wish to pass to the method. + @return {Object} Return value from invoking the passed function. Please note, + when called within an existing loop, no return value is possible. + */ + run.join = function(target, method /* args */) { + if (!run.currentRunLoop) { + return apply(Ember, run, arguments); + } + + var args = slice.call(arguments); + args.unshift('actions'); + apply(run, run.schedule, args); + }; + + /** + Provides a useful utility for when integrating with non-Ember libraries + that provide asynchronous callbacks. + + Ember utilizes a run-loop to batch and coalesce changes. This works by + marking the start and end of Ember-related Javascript execution. + + When using events such as a View's click handler, Ember wraps the event + handler in a run-loop, but when integrating with non-Ember libraries this + can be tedious. + + For example, the following is rather verbose but is the correct way to combine + third-party events and Ember code. + + ```javascript + var that = this; + jQuery(window).on('resize', function(){ + run(function(){ + that.handleResize(); + }); + }); + ``` + + To reduce the boilerplate, the following can be used to construct a + run-loop-wrapped callback handler. + + ```javascript + jQuery(window).on('resize', run.bind(this, this.handleResize)); + ``` + + @method bind + @namespace run + @param {Object} [target] target of method to call + @param {Function|String} method Method to invoke. + May be a function or a string. If you pass a string + then it will be looked up on the passed target. + @param {Object} [args*] Any additional arguments you wish to pass to the method. + @return {Object} return value from invoking the passed function. Please note, + when called within an existing loop, no return value is possible. + */ + run.bind = function(target, method /* args*/) { + var args = slice.call(arguments); + return function() { + return apply(run, run.join, args.concat(slice.call(arguments))); + }; + }; + + run.backburner = backburner; + run.currentRunLoop = null; + run.queues = backburner.queueNames; + + /** + Begins a new RunLoop. Any deferred actions invoked after the begin will + be buffered until you invoke a matching call to `run.end()`. This is + a lower-level way to use a RunLoop instead of using `run()`. + + ```javascript + run.begin(); + // code to be execute within a RunLoop + run.end(); + ``` + + @method begin + @return {void} + */ + run.begin = function() { + backburner.begin(); + }; + + /** + Ends a RunLoop. This must be called sometime after you call + `run.begin()` to flush any deferred actions. This is a lower-level way + to use a RunLoop instead of using `run()`. + + ```javascript + run.begin(); + // code to be execute within a RunLoop + run.end(); + ``` + + @method end + @return {void} + */ + run.end = function() { + backburner.end(); + }; + + /** + Array of named queues. This array determines the order in which queues + are flushed at the end of the RunLoop. You can define your own queues by + simply adding the queue name to this array. Normally you should not need + to inspect or modify this property. + + @property queues + @type Array + @default ['sync', 'actions', 'destroy'] + */ + + /** + Adds the passed target/method and any optional arguments to the named + queue to be executed at the end of the RunLoop. If you have not already + started a RunLoop when calling this method one will be started for you + automatically. + + At the end of a RunLoop, any methods scheduled in this way will be invoked. + Methods will be invoked in an order matching the named queues defined in + the `run.queues` property. + + ```javascript + run.schedule('sync', this, function() { + // this will be executed in the first RunLoop queue, when bindings are synced + console.log("scheduled on sync queue"); + }); + + run.schedule('actions', this, function() { + // this will be executed in the 'actions' queue, after bindings have synced. + console.log("scheduled on actions queue"); + }); + + // Note the functions will be run in order based on the run queues order. + // Output would be: + // scheduled on sync queue + // scheduled on actions queue + ``` + + @method schedule + @param {String} queue The name of the queue to schedule against. + Default queues are 'sync' and 'actions' + @param {Object} [target] target object to use as the context when invoking a method. + @param {String|Function} method The method to invoke. If you pass a string it + will be resolved on the target object at the time the scheduled item is + invoked allowing you to change the target function. + @param {Object} [arguments*] Optional arguments to be passed to the queued method. + @return {void} + */ + run.schedule = function(queue, target, method) { + checkAutoRun(); + apply(backburner, backburner.schedule, arguments); + }; + + // Used by global test teardown + run.hasScheduledTimers = function() { + return backburner.hasTimers(); + }; + + // Used by global test teardown + run.cancelTimers = function () { + backburner.cancelTimers(); + }; + + /** + Immediately flushes any events scheduled in the 'sync' queue. Bindings + use this queue so this method is a useful way to immediately force all + bindings in the application to sync. + + You should call this method anytime you need any changed state to propagate + throughout the app immediately without repainting the UI (which happens + in the later 'render' queue added by the `ember-views` package). + + ```javascript + run.sync(); + ``` + + @method sync + @return {void} + */ + run.sync = function() { + if (backburner.currentInstance) { + backburner.currentInstance.queues.sync.flush(); + } + }; + + /** + Invokes the passed target/method and optional arguments after a specified + period if time. The last parameter of this method must always be a number + of milliseconds. + + You should use this method whenever you need to run some action after a + period of time instead of using `setTimeout()`. This method will ensure that + items that expire during the same script execution cycle all execute + together, which is often more efficient than using a real setTimeout. + + ```javascript + run.later(myContext, function() { + // code here will execute within a RunLoop in about 500ms with this == myContext + }, 500); + ``` + + @method later + @param {Object} [target] target of method to invoke + @param {Function|String} method The method to invoke. + If you pass a string it will be resolved on the + target at the time the method is invoked. + @param {Object} [args*] Optional arguments to pass to the timeout. + @param {Number} wait Number of milliseconds to wait. + @return {String} a string you can use to cancel the timer in + `run.cancel` later. + */ + run.later = function(target, method) { + return apply(backburner, backburner.later, arguments); + }; + + /** + Schedule a function to run one time during the current RunLoop. This is equivalent + to calling `scheduleOnce` with the "actions" queue. + + @method once + @param {Object} [target] The target of the method to invoke. + @param {Function|String} method The method to invoke. + If you pass a string it will be resolved on the + target at the time the method is invoked. + @param {Object} [args*] Optional arguments to pass to the timeout. + @return {Object} Timer information for use in cancelling, see `run.cancel`. + */ + run.once = function(target, method) { + checkAutoRun(); + var args = slice.call(arguments); + args.unshift('actions'); + return apply(backburner, backburner.scheduleOnce, args); + }; + + /** + Schedules a function to run one time in a given queue of the current RunLoop. + Calling this method with the same queue/target/method combination will have + no effect (past the initial call). + + Note that although you can pass optional arguments these will not be + considered when looking for duplicates. New arguments will replace previous + calls. + + ```javascript + run(function() { + var sayHi = function() { console.log('hi'); } + run.scheduleOnce('afterRender', myContext, sayHi); + run.scheduleOnce('afterRender', myContext, sayHi); + // sayHi will only be executed once, in the afterRender queue of the RunLoop + }); + ``` + + Also note that passing an anonymous function to `run.scheduleOnce` will + not prevent additional calls with an identical anonymous function from + scheduling the items multiple times, e.g.: + + ```javascript + function scheduleIt() { + run.scheduleOnce('actions', myContext, function() { console.log("Closure"); }); + } + scheduleIt(); + scheduleIt(); + // "Closure" will print twice, even though we're using `run.scheduleOnce`, + // because the function we pass to it is anonymous and won't match the + // previously scheduled operation. + ``` + + Available queues, and their order, can be found at `run.queues` + + @method scheduleOnce + @param {String} [queue] The name of the queue to schedule against. Default queues are 'sync' and 'actions'. + @param {Object} [target] The target of the method to invoke. + @param {Function|String} method The method to invoke. + If you pass a string it will be resolved on the + target at the time the method is invoked. + @param {Object} [args*] Optional arguments to pass to the timeout. + @return {Object} Timer information for use in cancelling, see `run.cancel`. + */ + run.scheduleOnce = function(queue, target, method) { + checkAutoRun(); + return apply(backburner, backburner.scheduleOnce, arguments); + }; + + /** + Schedules an item to run from within a separate run loop, after + control has been returned to the system. This is equivalent to calling + `run.later` with a wait time of 1ms. + + ```javascript + run.next(myContext, function() { + // code to be executed in the next run loop, + // which will be scheduled after the current one + }); + ``` + + Multiple operations scheduled with `run.next` will coalesce + into the same later run loop, along with any other operations + scheduled by `run.later` that expire right around the same + time that `run.next` operations will fire. + + Note that there are often alternatives to using `run.next`. + For instance, if you'd like to schedule an operation to happen + after all DOM element operations have completed within the current + run loop, you can make use of the `afterRender` run loop queue (added + by the `ember-views` package, along with the preceding `render` queue + where all the DOM element operations happen). Example: + + ```javascript + App.MyCollectionView = Ember.CollectionView.extend({ + didInsertElement: function() { + run.scheduleOnce('afterRender', this, 'processChildElements'); + }, + processChildElements: function() { + // ... do something with collectionView's child view + // elements after they've finished rendering, which + // can't be done within the CollectionView's + // `didInsertElement` hook because that gets run + // before the child elements have been added to the DOM. + } + }); + ``` + + One benefit of the above approach compared to using `run.next` is + that you will be able to perform DOM/CSS operations before unprocessed + elements are rendered to the screen, which may prevent flickering or + other artifacts caused by delaying processing until after rendering. + + The other major benefit to the above approach is that `run.next` + introduces an element of non-determinism, which can make things much + harder to test, due to its reliance on `setTimeout`; it's much harder + to guarantee the order of scheduled operations when they are scheduled + outside of the current run loop, i.e. with `run.next`. + + @method next + @param {Object} [target] target of method to invoke + @param {Function|String} method The method to invoke. + If you pass a string it will be resolved on the + target at the time the method is invoked. + @param {Object} [args*] Optional arguments to pass to the timeout. + @return {Object} Timer information for use in cancelling, see `run.cancel`. + */ + run.next = function() { + var args = slice.call(arguments); + args.push(1); + return apply(backburner, backburner.later, args); + }; + + /** + Cancels a scheduled item. Must be a value returned by `run.later()`, + `run.once()`, `run.next()`, `run.debounce()`, or + `run.throttle()`. + + ```javascript + var runNext = run.next(myContext, function() { + // will not be executed + }); + run.cancel(runNext); + + var runLater = run.later(myContext, function() { + // will not be executed + }, 500); + run.cancel(runLater); + + var runOnce = run.once(myContext, function() { + // will not be executed + }); + run.cancel(runOnce); + + var throttle = run.throttle(myContext, function() { + // will not be executed + }, 1, false); + run.cancel(throttle); + + var debounce = run.debounce(myContext, function() { + // will not be executed + }, 1); + run.cancel(debounce); + + var debounceImmediate = run.debounce(myContext, function() { + // will be executed since we passed in true (immediate) + }, 100, true); + // the 100ms delay until this method can be called again will be cancelled + run.cancel(debounceImmediate); + ``` + + @method cancel + @param {Object} timer Timer object to cancel + @return {Boolean} true if cancelled or false/undefined if it wasn't found + */ + run.cancel = function(timer) { + return backburner.cancel(timer); + }; + + /** + Delay calling the target method until the debounce period has elapsed + with no additional debounce calls. If `debounce` is called again before + the specified time has elapsed, the timer is reset and the entire period + must pass again before the target method is called. + + This method should be used when an event may be called multiple times + but the action should only be called once when the event is done firing. + A common example is for scroll events where you only want updates to + happen once scrolling has ceased. + + ```javascript + var myFunc = function() { console.log(this.name + ' ran.'); }; + var myContext = {name: 'debounce'}; + + run.debounce(myContext, myFunc, 150); + + // less than 150ms passes + + run.debounce(myContext, myFunc, 150); + + // 150ms passes + // myFunc is invoked with context myContext + // console logs 'debounce ran.' one time. + ``` + + Immediate allows you to run the function immediately, but debounce + other calls for this function until the wait time has elapsed. If + `debounce` is called again before the specified time has elapsed, + the timer is reset and the entire period must pass again before + the method can be called again. + + ```javascript + var myFunc = function() { console.log(this.name + ' ran.'); }; + var myContext = {name: 'debounce'}; + + run.debounce(myContext, myFunc, 150, true); + + // console logs 'debounce ran.' one time immediately. + // 100ms passes + + run.debounce(myContext, myFunc, 150, true); + + // 150ms passes and nothing else is logged to the console and + // the debouncee is no longer being watched + + run.debounce(myContext, myFunc, 150, true); + + // console logs 'debounce ran.' one time immediately. + // 150ms passes and nothing else is logged tot he console and + // the debouncee is no longer being watched + + ``` + + @method debounce + @param {Object} [target] target of method to invoke + @param {Function|String} method The method to invoke. + May be a function or a string. If you pass a string + then it will be looked up on the passed target. + @param {Object} [args*] Optional arguments to pass to the timeout. + @param {Number} wait Number of milliseconds to wait. + @param {Boolean} immediate Trigger the function on the leading instead + of the trailing edge of the wait interval. Defaults to false. + @return {Array} Timer information for use in cancelling, see `run.cancel`. + */ + run.debounce = function() { + return apply(backburner, backburner.debounce, arguments); + }; + + /** + Ensure that the target method is never called more frequently than + the specified spacing period. + + ```javascript + var myFunc = function() { console.log(this.name + ' ran.'); }; + var myContext = {name: 'throttle'}; + + run.throttle(myContext, myFunc, 150); + // myFunc is invoked with context myContext + + // 50ms passes + run.throttle(myContext, myFunc, 150); + + // 50ms passes + run.throttle(myContext, myFunc, 150); + + // 150ms passes + run.throttle(myContext, myFunc, 150); + // myFunc is invoked with context myContext + // console logs 'throttle ran.' twice, 250ms apart. + ``` + + @method throttle + @param {Object} [target] target of method to invoke + @param {Function|String} method The method to invoke. + May be a function or a string. If you pass a string + then it will be looked up on the passed target. + @param {Object} [args*] Optional arguments to pass to the timeout. + @param {Number} spacing Number of milliseconds to space out requests. + @return {Array} Timer information for use in cancelling, see `run.cancel`. + */ + run.throttle = function() { + return apply(backburner, backburner.throttle, arguments); + }; + + // Make sure it's not an autorun during testing + function checkAutoRun() { + if (!run.currentRunLoop) { + Ember.assert("You have turned on testing mode, which disabled the run-loop's autorun. You will need to wrap any code with asynchronous side-effects in an run", !Ember.testing); + } + } + + /** + Add a new named queue after the specified queue. + + The queue to add will only be added once. + + @method _addQueue + @param {String} name the name of the queue to add. + @param {String} after the name of the queue to add after. + @private + */ + run._addQueue = function(name, after) { + if (indexOf.call(run.queues, name) === -1) { + run.queues.splice(indexOf.call(run.queues, after)+1, 0, name); + } + } + + __exports__["default"] = run + }); +define("ember-metal/set_properties", + ["ember-metal/property_events","ember-metal/property_set","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var changeProperties = __dependency1__.changeProperties; + var set = __dependency2__.set; + + /** + Set a list of properties on an object. These properties are set inside + a single `beginPropertyChanges` and `endPropertyChanges` batch, so + observers will be buffered. + + ```javascript + anObject.setProperties({ + firstName: "Stanley", + lastName: "Stuart", + age: "21" + }) + ``` + + @method setProperties + @param self + @param {Object} hash + @return self + */ + function setProperties(self, hash) { + changeProperties(function() { + for(var prop in hash) { + if (hash.hasOwnProperty(prop)) { set(self, prop, hash[prop]); } + } + }); + return self; + }; + + __exports__["default"] = setProperties; + }); +define("ember-metal/utils", + ["ember-metal/core","ember-metal/platform","ember-metal/array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var platform = __dependency2__.platform; + var create = __dependency2__.create; + var forEach = __dependency3__.forEach; + + /** + @module ember-metal + */ + + /** + Prefix used for guids through out Ember. + @private + */ + var GUID_PREFIX = 'ember'; + + + var o_defineProperty = platform.defineProperty, + o_create = create, + // Used for guid generation... + numberCache = [], + stringCache = {}, + uuid = 0; + + var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER; + + /** + A unique key used to assign guids and other private metadata to objects. + If you inspect an object in your browser debugger you will often see these. + They can be safely ignored. + + On browsers that support it, these properties are added with enumeration + disabled so they won't show up when you iterate over your properties. + + @private + @property GUID_KEY + @for Ember + @type String + @final + */ + var GUID_KEY = '__ember' + (+ new Date()); + + var GUID_DESC = { + writable: false, + configurable: false, + enumerable: false, + value: null + }; + + /** + Generates a new guid, optionally saving the guid to the object that you + pass in. You will rarely need to use this method. Instead you should + call `Ember.guidFor(obj)`, which return an existing guid if available. + + @private + @method generateGuid + @for Ember + @param {Object} [obj] Object the guid will be used for. If passed in, the guid will + be saved on the object and reused whenever you pass the same object + again. + + If no object is passed, just generate a new guid. + @param {String} [prefix] Prefix to place in front of the guid. Useful when you want to + separate the guid into separate namespaces. + @return {String} the guid + */ + function generateGuid(obj, prefix) { + if (!prefix) prefix = GUID_PREFIX; + var ret = (prefix + (uuid++)); + if (obj) { + if (obj[GUID_KEY] === null) { + obj[GUID_KEY] = ret; + } else { + GUID_DESC.value = ret; + o_defineProperty(obj, GUID_KEY, GUID_DESC); + } + } + return ret; + } + + /** + Returns a unique id for the object. If the object does not yet have a guid, + one will be assigned to it. You can call this on any object, + `Ember.Object`-based or not, but be aware that it will add a `_guid` + property. + + You can also use this method on DOM Element objects. + + @private + @method guidFor + @for Ember + @param {Object} obj any object, string, number, Element, or primitive + @return {String} the unique guid for this instance. + */ + function guidFor(obj) { + + // special cases where we don't want to add a key to object + if (obj === undefined) return "(undefined)"; + if (obj === null) return "(null)"; + + var ret; + var type = typeof obj; + + // Don't allow prototype changes to String etc. to change the guidFor + switch(type) { + case 'number': + ret = numberCache[obj]; + if (!ret) ret = numberCache[obj] = 'nu'+obj; + return ret; + + case 'string': + ret = stringCache[obj]; + if (!ret) ret = stringCache[obj] = 'st'+(uuid++); + return ret; + + case 'boolean': + return obj ? '(true)' : '(false)'; + + default: + if (obj[GUID_KEY]) return obj[GUID_KEY]; + if (obj === Object) return '(Object)'; + if (obj === Array) return '(Array)'; + ret = 'ember' + (uuid++); + + if (obj[GUID_KEY] === null) { + obj[GUID_KEY] = ret; + } else { + GUID_DESC.value = ret; + o_defineProperty(obj, GUID_KEY, GUID_DESC); + } + return ret; + } + }; + + // .......................................................... + // META + // + + var META_DESC = { + writable: true, + configurable: false, + enumerable: false, + value: null + }; + + + /** + The key used to store meta information on object for property observing. + + @property META_KEY + @for Ember + @private + @final + @type String + */ + var META_KEY = '__ember_meta__'; + + var isDefinePropertySimulated = platform.defineProperty.isSimulated; + + function Meta(obj) { + this.descs = {}; + this.watching = {}; + this.cache = {}; + this.cacheMeta = {}; + this.source = obj; + } + + Meta.prototype = { + descs: null, + deps: null, + watching: null, + listeners: null, + cache: null, + cacheMeta: null, + source: null, + mixins: null, + bindings: null, + chains: null, + chainWatchers: null, + values: null, + proto: null + }; + + if (isDefinePropertySimulated) { + // on platforms that don't support enumerable false + // make meta fail jQuery.isPlainObject() to hide from + // jQuery.extend() by having a property that fails + // hasOwnProperty check. + Meta.prototype.__preventPlainObject__ = true; + + // Without non-enumerable properties, meta objects will be output in JSON + // unless explicitly suppressed + Meta.prototype.toJSON = function () { }; + } + + // Placeholder for non-writable metas. + var EMPTY_META = new Meta(null); + + if (MANDATORY_SETTER) { EMPTY_META.values = {}; } + + /** + Retrieves the meta hash for an object. If `writable` is true ensures the + hash is writable for this object as well. + + The meta object contains information about computed property descriptors as + well as any watched properties and other information. You generally will + not access this information directly but instead work with higher level + methods that manipulate this hash indirectly. + + @method meta + @for Ember + @private + + @param {Object} obj The object to retrieve meta for + @param {Boolean} [writable=true] Pass `false` if you do not intend to modify + the meta hash, allowing the method to avoid making an unnecessary copy. + @return {Object} the meta hash for an object + */ + function meta(obj, writable) { + + var ret = obj[META_KEY]; + if (writable===false) return ret || EMPTY_META; + + if (!ret) { + if (!isDefinePropertySimulated) o_defineProperty(obj, META_KEY, META_DESC); + + ret = new Meta(obj); + + if (MANDATORY_SETTER) { ret.values = {}; } + + obj[META_KEY] = ret; + + // make sure we don't accidentally try to create constructor like desc + ret.descs.constructor = null; + + } else if (ret.source !== obj) { + if (!isDefinePropertySimulated) o_defineProperty(obj, META_KEY, META_DESC); + + ret = o_create(ret); + ret.descs = o_create(ret.descs); + ret.watching = o_create(ret.watching); + ret.cache = {}; + ret.cacheMeta = {}; + ret.source = obj; + + if (MANDATORY_SETTER) { ret.values = o_create(ret.values); } + + obj[META_KEY] = ret; + } + return ret; + }; + + function getMeta(obj, property) { + var _meta = meta(obj, false); + return _meta[property]; + }; + + function setMeta(obj, property, value) { + var _meta = meta(obj, true); + _meta[property] = value; + return value; + }; + + /** + @deprecated + @private + + In order to store defaults for a class, a prototype may need to create + a default meta object, which will be inherited by any objects instantiated + from the class's constructor. + + However, the properties of that meta object are only shallow-cloned, + so if a property is a hash (like the event system's `listeners` hash), + it will by default be shared across all instances of that class. + + This method allows extensions to deeply clone a series of nested hashes or + other complex objects. For instance, the event system might pass + `['listeners', 'foo:change', 'ember157']` to `prepareMetaPath`, which will + walk down the keys provided. + + For each key, if the key does not exist, it is created. If it already + exists and it was inherited from its constructor, the constructor's + key is cloned. + + You can also pass false for `writable`, which will simply return + undefined if `prepareMetaPath` discovers any part of the path that + shared or undefined. + + @method metaPath + @for Ember + @param {Object} obj The object whose meta we are examining + @param {Array} path An array of keys to walk down + @param {Boolean} writable whether or not to create a new meta + (or meta property) if one does not already exist or if it's + shared with its constructor + */ + function metaPath(obj, path, writable) { + Ember.deprecate("Ember.metaPath is deprecated and will be removed from future releases."); + var _meta = meta(obj, writable), keyName, value; + + for (var i=0, l=path.length; i 0) { + method.apply(target, args); + } else { + method.call(target); + } + } + if (l && after) { after(); } + + // check if new items have been added + if (queue.length > l) { + this._queue = queue.slice(l); + this.flush(); + } else { + this._queue.length = 0; + } + }, + + cancel: function(actionToCancel) { + var queue = this._queue, currentTarget, currentMethod, i, l; + + for (i = 0, l = queue.length; i < l; i += 4) { + currentTarget = queue[i]; + currentMethod = queue[i+1]; + + if (currentTarget === actionToCancel.target && currentMethod === actionToCancel.method) { + queue.splice(i, 4); + return true; + } + } + + // if not found in current queue + // could be in the queue that is being flushed + queue = this._queueBeingFlushed; + if (!queue) { + return; + } + for (i = 0, l = queue.length; i < l; i += 4) { + currentTarget = queue[i]; + currentMethod = queue[i+1]; + + if (currentTarget === actionToCancel.target && currentMethod === actionToCancel.method) { + // don't mess with array during flush + // just nullify the method + queue[i+1] = null; + return true; + } + } + } + }; + + __exports__.Queue = Queue; + }); + +define("backburner/deferred_action_queues", + ["backburner/queue","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Queue = __dependency1__.Queue; + + function DeferredActionQueues(queueNames, options) { + var queues = this.queues = {}; + this.queueNames = queueNames = queueNames || []; + + var queueName; + for (var i = 0, l = queueNames.length; i < l; i++) { + queueName = queueNames[i]; + queues[queueName] = new Queue(this, queueName, options[queueName]); + } + } + + DeferredActionQueues.prototype = { + queueNames: null, + queues: null, + + schedule: function(queueName, target, method, args, onceFlag, stack) { + var queues = this.queues, + queue = queues[queueName]; + + if (!queue) { throw new Error("You attempted to schedule an action in a queue (" + queueName + ") that doesn't exist"); } + + if (onceFlag) { + return queue.pushUnique(target, method, args, stack); + } else { + return queue.push(target, method, args, stack); + } + }, + + flush: function() { + var queues = this.queues, + queueNames = this.queueNames, + queueName, queue, queueItems, priorQueueNameIndex, + queueNameIndex = 0, numberOfQueues = queueNames.length; + + outerloop: + while (queueNameIndex < numberOfQueues) { + queueName = queueNames[queueNameIndex]; + queue = queues[queueName]; + queueItems = queue._queueBeingFlushed = queue._queue.slice(); + queue._queue = []; + + var options = queue.options, + before = options && options.before, + after = options && options.after, + target, method, args, stack, + queueIndex = 0, numberOfQueueItems = queueItems.length; + + if (numberOfQueueItems && before) { before(); } + while (queueIndex < numberOfQueueItems) { + target = queueItems[queueIndex]; + method = queueItems[queueIndex+1]; + args = queueItems[queueIndex+2]; + stack = queueItems[queueIndex+3]; // Debugging assistance + + if (typeof method === 'string') { method = target[method]; } + + // method could have been nullified / canceled during flush + if (method) { + // TODO: error handling + if (args && args.length > 0) { + method.apply(target, args); + } else { + method.call(target); + } + } + + queueIndex += 4; + } + queue._queueBeingFlushed = null; + if (numberOfQueueItems && after) { after(); } + + if ((priorQueueNameIndex = indexOfPriorQueueWithActions(this, queueNameIndex)) !== -1) { + queueNameIndex = priorQueueNameIndex; + continue outerloop; + } + + queueNameIndex++; + } + } + }; + + function indexOfPriorQueueWithActions(daq, currentQueueIndex) { + var queueName, queue; + + for (var i = 0, l = currentQueueIndex; i <= l; i++) { + queueName = daq.queueNames[i]; + queue = daq.queues[queueName]; + if (queue._queue.length) { return i; } + } + + return -1; + } + + __exports__.DeferredActionQueues = DeferredActionQueues; + }); + +define("backburner", + ["backburner/deferred_action_queues","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var DeferredActionQueues = __dependency1__.DeferredActionQueues; + + var slice = [].slice, + pop = [].pop, + throttlers = [], + debouncees = [], + timers = [], + autorun, laterTimer, laterTimerExpiresAt, + global = this, + NUMBER = /\d+/; + + function isCoercableNumber(number) { + return typeof number === 'number' || NUMBER.test(number); + } + + function Backburner(queueNames, options) { + this.queueNames = queueNames; + this.options = options || {}; + if (!this.options.defaultQueue) { + this.options.defaultQueue = queueNames[0]; + } + this.instanceStack = []; + } + + Backburner.prototype = { + queueNames: null, + options: null, + currentInstance: null, + instanceStack: null, + + begin: function() { + var onBegin = this.options && this.options.onBegin, + previousInstance = this.currentInstance; + + if (previousInstance) { + this.instanceStack.push(previousInstance); + } + + this.currentInstance = new DeferredActionQueues(this.queueNames, this.options); + if (onBegin) { + onBegin(this.currentInstance, previousInstance); + } + }, + + end: function() { + var onEnd = this.options && this.options.onEnd, + currentInstance = this.currentInstance, + nextInstance = null; + + try { + currentInstance.flush(); + } finally { + this.currentInstance = null; + + if (this.instanceStack.length) { + nextInstance = this.instanceStack.pop(); + this.currentInstance = nextInstance; + } + + if (onEnd) { + onEnd(currentInstance, nextInstance); + } + } + }, + + run: function(target, method /*, args */) { + var ret; + this.begin(); + + if (!method) { + method = target; + target = null; + } + + if (typeof method === 'string') { + method = target[method]; + } + + // Prevent Safari double-finally. + var finallyAlreadyCalled = false; + try { + if (arguments.length > 2) { + ret = method.apply(target, slice.call(arguments, 2)); + } else { + ret = method.call(target); + } + } finally { + if (!finallyAlreadyCalled) { + finallyAlreadyCalled = true; + this.end(); + } + } + return ret; + }, + + defer: function(queueName, target, method /* , args */) { + if (!method) { + method = target; + target = null; + } + + if (typeof method === 'string') { + method = target[method]; + } + + var stack = this.DEBUG ? new Error() : undefined, + args = arguments.length > 3 ? slice.call(arguments, 3) : undefined; + if (!this.currentInstance) { createAutorun(this); } + return this.currentInstance.schedule(queueName, target, method, args, false, stack); + }, + + deferOnce: function(queueName, target, method /* , args */) { + if (!method) { + method = target; + target = null; + } + + if (typeof method === 'string') { + method = target[method]; + } + + var stack = this.DEBUG ? new Error() : undefined, + args = arguments.length > 3 ? slice.call(arguments, 3) : undefined; + if (!this.currentInstance) { createAutorun(this); } + return this.currentInstance.schedule(queueName, target, method, args, true, stack); + }, + + setTimeout: function() { + var args = slice.call(arguments); + var length = args.length; + var method, wait, target; + var self = this; + var methodOrTarget, methodOrWait, methodOrArgs; + + if (length === 0) { + return; + } else if (length === 1) { + method = args.shift(); + wait = 0; + } else if (length === 2) { + methodOrTarget = args[0]; + methodOrWait = args[1]; + + if (typeof methodOrWait === 'function' || typeof methodOrTarget[methodOrWait] === 'function') { + target = args.shift(); + method = args.shift(); + wait = 0; + } else if (isCoercableNumber(methodOrWait)) { + method = args.shift(); + wait = args.shift(); + } else { + method = args.shift(); + wait = 0; + } + } else { + var last = args[args.length - 1]; + + if (isCoercableNumber(last)) { + wait = args.pop(); + } + + methodOrTarget = args[0]; + methodOrArgs = args[1]; + + if (typeof methodOrArgs === 'function' || (typeof methodOrArgs === 'string' && + methodOrTarget !== null && + methodOrArgs in methodOrTarget)) { + target = args.shift(); + method = args.shift(); + } else { + method = args.shift(); + } + } + + var executeAt = (+new Date()) + parseInt(wait, 10); + + if (typeof method === 'string') { + method = target[method]; + } + + function fn() { + method.apply(target, args); + } + + // find position to insert - TODO: binary search + var i, l; + for (i = 0, l = timers.length; i < l; i += 2) { + if (executeAt < timers[i]) { break; } + } + + timers.splice(i, 0, executeAt, fn); + + updateLaterTimer(self, executeAt, wait); + + return fn; + }, + + throttle: function(target, method /* , args, wait, [immediate] */) { + var self = this, + args = arguments, + immediate = pop.call(args), + wait, + throttler, + index, + timer; + + if (typeof immediate === "number" || typeof immediate === "string") { + wait = immediate; + immediate = true; + } else { + wait = pop.call(args); + } + + wait = parseInt(wait, 10); + + index = findThrottler(target, method); + if (index > -1) { return throttlers[index]; } // throttled + + timer = global.setTimeout(function() { + if (!immediate) { + self.run.apply(self, args); + } + var index = findThrottler(target, method); + if (index > -1) { throttlers.splice(index, 1); } + }, wait); + + if (immediate) { + self.run.apply(self, args); + } + + throttler = [target, method, timer]; + + throttlers.push(throttler); + + return throttler; + }, + + debounce: function(target, method /* , args, wait, [immediate] */) { + var self = this, + args = arguments, + immediate = pop.call(args), + wait, + index, + debouncee, + timer; + + if (typeof immediate === "number" || typeof immediate === "string") { + wait = immediate; + immediate = false; + } else { + wait = pop.call(args); + } + + wait = parseInt(wait, 10); + // Remove debouncee + index = findDebouncee(target, method); + + if (index > -1) { + debouncee = debouncees[index]; + debouncees.splice(index, 1); + clearTimeout(debouncee[2]); + } + + timer = global.setTimeout(function() { + if (!immediate) { + self.run.apply(self, args); + } + var index = findDebouncee(target, method); + if (index > -1) { + debouncees.splice(index, 1); + } + }, wait); + + if (immediate && index === -1) { + self.run.apply(self, args); + } + + debouncee = [target, method, timer]; + + debouncees.push(debouncee); + + return debouncee; + }, + + cancelTimers: function() { + var i, len; + + for (i = 0, len = throttlers.length; i < len; i++) { + clearTimeout(throttlers[i][2]); + } + throttlers = []; + + for (i = 0, len = debouncees.length; i < len; i++) { + clearTimeout(debouncees[i][2]); + } + debouncees = []; + + if (laterTimer) { + clearTimeout(laterTimer); + laterTimer = null; + } + timers = []; + + if (autorun) { + clearTimeout(autorun); + autorun = null; + } + }, + + hasTimers: function() { + return !!timers.length || autorun; + }, + + cancel: function(timer) { + var timerType = typeof timer; + + if (timer && timerType === 'object' && timer.queue && timer.method) { // we're cancelling a deferOnce + return timer.queue.cancel(timer); + } else if (timerType === 'function') { // we're cancelling a setTimeout + for (var i = 0, l = timers.length; i < l; i += 2) { + if (timers[i + 1] === timer) { + timers.splice(i, 2); // remove the two elements + return true; + } + } + } else if (Object.prototype.toString.call(timer) === "[object Array]"){ // we're cancelling a throttle or debounce + return this._cancelItem(findThrottler, throttlers, timer) || + this._cancelItem(findDebouncee, debouncees, timer); + } else { + return; // timer was null or not a timer + } + }, + + _cancelItem: function(findMethod, array, timer){ + var item, + index; + + if (timer.length < 3) { return false; } + + index = findMethod(timer[0], timer[1]); + + if(index > -1) { + + item = array[index]; + + if(item[2] === timer[2]){ + array.splice(index, 1); + clearTimeout(timer[2]); + return true; + } + } + + return false; + } + + }; + + Backburner.prototype.schedule = Backburner.prototype.defer; + Backburner.prototype.scheduleOnce = Backburner.prototype.deferOnce; + Backburner.prototype.later = Backburner.prototype.setTimeout; + + function createAutorun(backburner) { + backburner.begin(); + autorun = global.setTimeout(function() { + autorun = null; + backburner.end(); + }); + } + + function updateLaterTimer(self, executeAt, wait) { + if (!laterTimer || executeAt < laterTimerExpiresAt) { + if (laterTimer) { + clearTimeout(laterTimer); + } + laterTimer = global.setTimeout(function() { + laterTimer = null; + laterTimerExpiresAt = null; + executeTimers(self); + }, wait); + laterTimerExpiresAt = executeAt; + } + } + + function executeTimers(self) { + var now = +new Date(), + time, fns, i, l; + + self.run(function() { + // TODO: binary search + for (i = 0, l = timers.length; i < l; i += 2) { + time = timers[i]; + if (time > now) { break; } + } + + fns = timers.splice(0, i); + + for (i = 1, l = fns.length; i < l; i += 2) { + self.schedule(self.options.defaultQueue, null, fns[i]); + } + }); + + if (timers.length) { + updateLaterTimer(self, timers[0], timers[0] - now); + } + } + + function findDebouncee(target, method) { + var debouncee, + index = -1; + + for (var i = 0, l = debouncees.length; i < l; i++) { + debouncee = debouncees[i]; + if (debouncee[0] === target && debouncee[1] === method) { + index = i; + break; + } + } + + return index; + } + + function findThrottler(target, method) { + var throttler, + index = -1; + + for (var i = 0, l = throttlers.length; i < l; i++) { + throttler = throttlers[i]; + if (throttler[0] === target && throttler[1] === method) { + index = i; + break; + } + } + + return index; + } + + __exports__.Backburner = Backburner; + }); + +define("ember-metal/watch_key", + ["ember-metal/core","ember-metal/utils","ember-metal/platform","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var meta = __dependency2__.meta; + var typeOf = __dependency2__.typeOf; + var platform = __dependency3__.platform; + + var metaFor = meta, // utils.js + MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER, + o_defineProperty = platform.defineProperty; + + function watchKey(obj, keyName, meta) { + // can't watch length on Array - it is special... + if (keyName === 'length' && typeOf(obj) === 'array') { return; } + + var m = meta || metaFor(obj), watching = m.watching; + + // activate watching first time + if (!watching[keyName]) { + watching[keyName] = 1; + + if ('function' === typeof obj.willWatchProperty) { + obj.willWatchProperty(keyName); + } + + if (MANDATORY_SETTER && keyName in obj) { + m.values[keyName] = obj[keyName]; + o_defineProperty(obj, keyName, { + configurable: true, + enumerable: obj.propertyIsEnumerable(keyName), + set: Ember.MANDATORY_SETTER_FUNCTION, + get: Ember.DEFAULT_GETTER_FUNCTION(keyName) + }); + } + } else { + watching[keyName] = (watching[keyName] || 0) + 1; + } + }; + + function unwatchKey(obj, keyName, meta) { + var m = meta || metaFor(obj), watching = m.watching; + + if (watching[keyName] === 1) { + watching[keyName] = 0; + + if ('function' === typeof obj.didUnwatchProperty) { + obj.didUnwatchProperty(keyName); + } + + if (MANDATORY_SETTER && keyName in obj) { + o_defineProperty(obj, keyName, { + configurable: true, + enumerable: obj.propertyIsEnumerable(keyName), + set: function(val) { + // redefine to set as enumerable + o_defineProperty(obj, keyName, { + configurable: true, + writable: true, + enumerable: true, + value: val + }); + delete m.values[keyName]; + }, + get: Ember.DEFAULT_GETTER_FUNCTION(keyName) + }); + } + } else if (watching[keyName] > 1) { + watching[keyName]--; + } + }; + + __exports__.watchKey = watchKey; + __exports__.unwatchKey = unwatchKey; + }); +define("ember-metal/watch_path", + ["ember-metal/utils","ember-metal/chains","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var meta = __dependency1__.meta; + var typeOf = __dependency1__.typeOf; + var ChainNode = __dependency2__.ChainNode; + + var metaFor = meta; + + // get the chains for the current object. If the current object has + // chains inherited from the proto they will be cloned and reconfigured for + // the current object. + function chainsFor(obj, meta) { + var m = meta || metaFor(obj), ret = m.chains; + if (!ret) { + ret = m.chains = new ChainNode(null, null, obj); + } else if (ret.value() !== obj) { + ret = m.chains = ret.copy(obj); + } + return ret; + } + + function watchPath(obj, keyPath, meta) { + // can't watch length on Array - it is special... + if (keyPath === 'length' && typeOf(obj) === 'array') { return; } + + var m = meta || metaFor(obj), watching = m.watching; + + if (!watching[keyPath]) { // activate watching first time + watching[keyPath] = 1; + chainsFor(obj, m).add(keyPath); + } else { + watching[keyPath] = (watching[keyPath] || 0) + 1; + } + }; + + function unwatchPath(obj, keyPath, meta) { + var m = meta || metaFor(obj), watching = m.watching; + + if (watching[keyPath] === 1) { + watching[keyPath] = 0; + chainsFor(obj, m).remove(keyPath); + } else if (watching[keyPath] > 1) { + watching[keyPath]--; + } + }; + + __exports__.watchPath = watchPath; + __exports__.unwatchPath = unwatchPath; + }); +define("ember-metal/watching", + ["ember-metal/utils","ember-metal/chains","ember-metal/watch_key","ember-metal/watch_path","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember-metal + */ + + var meta = __dependency1__.meta; + var META_KEY = __dependency1__.META_KEY; + var GUID_KEY = __dependency1__.GUID_KEY; + var typeOf = __dependency1__.typeOf; + var generateGuid = __dependency1__.generateGuid; + var removeChainWatcher = __dependency2__.removeChainWatcher; + var flushPendingChains = __dependency2__.flushPendingChains; + var watchKey = __dependency3__.watchKey; + var unwatchKey = __dependency3__.unwatchKey; + var watchPath = __dependency4__.watchPath; + var unwatchPath = __dependency4__.unwatchPath; + + var metaFor = meta; // utils.js + + // returns true if the passed path is just a keyName + function isKeyName(path) { + return path.indexOf('.') === -1; + } + + /** + Starts watching a property on an object. Whenever the property changes, + invokes `Ember.propertyWillChange` and `Ember.propertyDidChange`. This is the + primitive used by observers and dependent keys; usually you will never call + this method directly but instead use higher level methods like + `Ember.addObserver()` + + @private + @method watch + @for Ember + @param obj + @param {String} keyName + */ + function watch(obj, _keyPath, m) { + // can't watch length on Array - it is special... + if (_keyPath === 'length' && typeOf(obj) === 'array') { return; } + + if (isKeyName(_keyPath)) { + watchKey(obj, _keyPath, m); + } else { + watchPath(obj, _keyPath, m); + } + }; + + function isWatching(obj, key) { + var meta = obj[META_KEY]; + return (meta && meta.watching[key]) > 0; + }; + + watch.flushPending = flushPendingChains; + + function unwatch(obj, _keyPath, m) { + // can't watch length on Array - it is special... + if (_keyPath === 'length' && typeOf(obj) === 'array') { return; } + + if (isKeyName(_keyPath)) { + unwatchKey(obj, _keyPath, m); + } else { + unwatchPath(obj, _keyPath, m); + } + }; + + /** + Call on an object when you first beget it from another object. This will + setup any chained watchers on the object instance as needed. This method is + safe to call multiple times. + + @private + @method rewatch + @for Ember + @param obj + */ + function rewatch(obj) { + var m = obj[META_KEY], chains = m && m.chains; + + // make sure the object has its own guid. + if (GUID_KEY in obj && !obj.hasOwnProperty(GUID_KEY)) { + generateGuid(obj); + } + + // make sure any chained watchers update. + if (chains && chains.value() !== obj) { + m.chains = chains.copy(obj); + } + }; + + var NODE_STACK = []; + + /** + Tears down the meta on an object so that it can be garbage collected. + Multiple calls will have no effect. + + @method destroy + @for Ember + @param {Object} obj the object to destroy + @return {void} + */ + function destroy(obj) { + var meta = obj[META_KEY], node, nodes, key, nodeObject; + if (meta) { + obj[META_KEY] = null; + // remove chainWatchers to remove circular references that would prevent GC + node = meta.chains; + if (node) { + NODE_STACK.push(node); + // process tree + while (NODE_STACK.length > 0) { + node = NODE_STACK.pop(); + // push children + nodes = node._chains; + if (nodes) { + for (key in nodes) { + if (nodes.hasOwnProperty(key)) { + NODE_STACK.push(nodes[key]); + } + } + } + // remove chainWatcher in node object + if (node._watching) { + nodeObject = node._object; + if (nodeObject) { + removeChainWatcher(nodeObject, node._key, node); + } + } + } + } + } + }; + + __exports__.watch = watch; + __exports__.isWatching = isWatching; + __exports__.unwatch = unwatch; + __exports__.rewatch = rewatch; + __exports__.destroy = destroy; + }); +})(); + +(function() { +/** + @class RSVP + @module RSVP + */ +define("rsvp/all", + ["./promise","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + + /** + This is a convenient alias for `RSVP.Promise.all`. + + @method all + @for RSVP + @param {Array} array Array of promises. + @param {String} label An optional label. This is useful + for tooling. + @static + */ + __exports__["default"] = function all(array, label) { + return Promise.all(array, label); + }; + }); +define("rsvp/all_settled", + ["./promise","./utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + var isArray = __dependency2__.isArray; + var isNonThenable = __dependency2__.isNonThenable; + + /** + `RSVP.allSettled` is similar to `RSVP.all`, but instead of implementing + a fail-fast method, it waits until all the promises have returned and + shows you all the results. This is useful if you want to handle multiple + promises' failure states together as a set. + + Returns a promise that is fulfilled when all the given promises have been + settled. The return promise is fulfilled with an array of the states of + the promises passed into the `promises` array argument. + + Each state object will either indicate fulfillment or rejection, and + provide the corresponding value or reason. The states will take one of + the following formats: + + ```javascript + { state: 'fulfilled', value: value } + or + { state: 'rejected', reason: reason } + ``` + + Example: + + ```javascript + var promise1 = RSVP.Promise.resolve(1); + var promise2 = RSVP.Promise.reject(new Error('2')); + var promise3 = RSVP.Promise.reject(new Error('3')); + var promises = [ promise1, promise2, promise3 ]; + + RSVP.allSettled(promises).then(function(array){ + // array == [ + // { state: 'fulfilled', value: 1 }, + // { state: 'rejected', reason: Error }, + // { state: 'rejected', reason: Error } + // ] + // Note that for the second item, reason.message will be "2", and for the + // third item, reason.message will be "3". + }, function(error) { + // Not run. (This block would only be called if allSettled had failed, + // for instance if passed an incorrect argument type.) + }); + ``` + + @method allSettled + @for RSVP + @param {Array} promises + @param {String} label - optional string that describes the promise. + Useful for tooling. + @return {Promise} promise that is fulfilled with an array of the settled + states of the constituent promises. + @static + */ + + __exports__["default"] = function allSettled(entries, label) { + return new Promise(function(resolve, reject) { + if (!isArray(entries)) { + throw new TypeError('You must pass an array to allSettled.'); + } + + var remaining = entries.length; + var entry; + + if (remaining === 0) { + resolve([]); + return; + } + + var results = new Array(remaining); + + function fulfilledResolver(index) { + return function(value) { + resolveAll(index, fulfilled(value)); + }; + } + + function rejectedResolver(index) { + return function(reason) { + resolveAll(index, rejected(reason)); + }; + } + + function resolveAll(index, value) { + results[index] = value; + if (--remaining === 0) { + resolve(results); + } + } + + for (var index = 0; index < entries.length; index++) { + entry = entries[index]; + + if (isNonThenable(entry)) { + resolveAll(index, fulfilled(entry)); + } else { + Promise.cast(entry).then(fulfilledResolver(index), rejectedResolver(index)); + } + } + }, label); + }; + + function fulfilled(value) { + return { state: 'fulfilled', value: value }; + } + + function rejected(reason) { + return { state: 'rejected', reason: reason }; + } + }); +define("rsvp/config", + ["./events","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var EventTarget = __dependency1__["default"]; + + var config = { + instrument: false + }; + + EventTarget.mixin(config); + + function configure(name, value) { + if (name === 'onerror') { + // handle for legacy users that expect the actual + // error to be passed to their function added via + // `RSVP.configure('onerror', someFunctionHere);` + config.on('error', value); + return; + } + + if (arguments.length === 2) { + config[name] = value; + } else { + return config[name]; + } + } + + __exports__.config = config; + __exports__.configure = configure; + }); +define("rsvp/defer", + ["./promise","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + + /** + `RSVP.defer` returns an object similar to jQuery's `$.Deferred`. + `RSVP.defer` should be used when porting over code reliant on `$.Deferred`'s + interface. New code should use the `RSVP.Promise` constructor instead. + + The object returned from `RSVP.defer` is a plain object with three properties: + + * promise - an `RSVP.Promise`. + * reject - a function that causes the `promise` property on this object to + become rejected + * resolve - a function that causes the `promise` property on this object to + become fulfilled. + + Example: + + ```javascript + var deferred = RSVP.defer(); + + deferred.resolve("Success!"); + + deferred.promise.then(function(value){ + // value here is "Success!" + }); + ``` + + @method defer + @for RSVP + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Object} + */ + + __exports__["default"] = function defer(label) { + var deferred = { }; + + deferred.promise = new Promise(function(resolve, reject) { + deferred.resolve = resolve; + deferred.reject = reject; + }, label); + + return deferred; + }; + }); +define("rsvp/events", + ["exports"], + function(__exports__) { + "use strict"; + var indexOf = function(callbacks, callback) { + for (var i=0, l=callbacks.length; i 1; + }; + + RSVP.filter(promises, filterFn).then(function(result){ + // result is [ 2, 3 ] + }); + ``` + + If any of the `promises` given to `RSVP.filter` are rejected, the first promise + that is rejected will be given as an argument to the returned promise's + rejection handler. For example: + + ```javascript + var promise1 = RSVP.resolve(1); + var promise2 = RSVP.reject(new Error("2")); + var promise3 = RSVP.reject(new Error("3")); + var promises = [ promise1, promise2, promise3 ]; + + var filterFn = function(item){ + return item > 1; + }; + + RSVP.filter(promises, filterFn).then(function(array){ + // Code here never runs because there are rejected promises! + }, function(reason) { + // reason.message === "2" + }); + ``` + + `RSVP.filter` will also wait for any promises returned from `filterFn`. + For instance, you may want to fetch a list of users then return a subset + of those users based on some asynchronous operation: + + ```javascript + + var alice = { name: 'alice' }; + var bob = { name: 'bob' }; + var users = [ alice, bob ]; + + var promises = users.map(function(user){ + return RSVP.resolve(user); + }); + + var filterFn = function(user){ + // Here, Alice has permissions to create a blog post, but Bob does not. + return getPrivilegesForUser(user).then(function(privs){ + return privs.can_create_blog_post === true; + }); + }; + RSVP.filter(promises, filterFn).then(function(users){ + // true, because the server told us only Alice can create a blog post. + users.length === 1; + // false, because Alice is the only user present in `users` + users[0] === bob; + }); + ``` + + @method filter + @for RSVP + @param {Array} promises + @param {Function} filterFn - function to be called on each resolved value to + filter the final results. + @param {String} label optional string describing the promise. Useful for + tooling. + @return {Promise} + */ + function filter(promises, filterFn, label) { + return all(promises, label).then(function(values){ + if (!isArray(promises)) { + throw new TypeError('You must pass an array to filter.'); + } + + if (!isFunction(filterFn)){ + throw new TypeError("You must pass a function to filter's second argument."); + } + + return map(promises, filterFn, label).then(function(filterResults){ + var i, + valuesLen = values.length, + filtered = []; + + for (i = 0; i < valuesLen; i++){ + if(filterResults[i]) filtered.push(values[i]); + } + return filtered; + }); + }); + } + + __exports__["default"] = filter; + }); +define("rsvp/hash", + ["./promise","./utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + var isNonThenable = __dependency2__.isNonThenable; + var keysOf = __dependency2__.keysOf; + + /** + `RSVP.hash` is similar to `RSVP.all`, but takes an object instead of an array + for its `promises` argument. + + Returns a promise that is fulfilled when all the given promises have been + fulfilled, or rejected if any of them become rejected. The returned promise + is fulfilled with a hash that has the same key names as the `promises` object + argument. If any of the values in the object are not promises, they will + simply be copied over to the fulfilled object. + + Example: + + ```javascript + var promises = { + myPromise: RSVP.resolve(1), + yourPromise: RSVP.resolve(2), + theirPromise: RSVP.resolve(3), + notAPromise: 4 + }; + + RSVP.hash(promises).then(function(hash){ + // hash here is an object that looks like: + // { + // myPromise: 1, + // yourPromise: 2, + // theirPromise: 3, + // notAPromise: 4 + // } + }); + ```` + + If any of the `promises` given to `RSVP.hash` are rejected, the first promise + that is rejected will be given as the reason to the rejection handler. + + Example: + + ```javascript + var promises = { + myPromise: RSVP.resolve(1), + rejectedPromise: RSVP.reject(new Error("rejectedPromise")), + anotherRejectedPromise: RSVP.reject(new Error("anotherRejectedPromise")), + }; + + RSVP.hash(promises).then(function(hash){ + // Code here never runs because there are rejected promises! + }, function(reason) { + // reason.message === "rejectedPromise" + }); + ``` + + An important note: `RSVP.hash` is intended for plain JavaScript objects that + are just a set of keys and values. `RSVP.hash` will NOT preserve prototype + chains. + + Example: + + ```javascript + function MyConstructor(){ + this.example = RSVP.resolve("Example"); + } + + MyConstructor.prototype = { + protoProperty: RSVP.resolve("Proto Property") + }; + + var myObject = new MyConstructor(); + + RSVP.hash(myObject).then(function(hash){ + // protoProperty will not be present, instead you will just have an + // object that looks like: + // { + // example: "Example" + // } + // + // hash.hasOwnProperty('protoProperty'); // false + // 'undefined' === typeof hash.protoProperty + }); + ``` + + @method hash + @for RSVP + @param {Object} promises + @param {String} label optional string that describes the promise. + Useful for tooling. + @return {Promise} promise that is fulfilled when all properties of `promises` + have been fulfilled, or rejected if any of them become rejected. + @static + */ + __exports__["default"] = function hash(object, label) { + return new Promise(function(resolve, reject){ + var results = {}; + var keys = keysOf(object); + var remaining = keys.length; + var entry, property; + + if (remaining === 0) { + resolve(results); + return; + } + + function fulfilledTo(property) { + return function(value) { + results[property] = value; + if (--remaining === 0) { + resolve(results); + } + }; + } + + function onRejection(reason) { + remaining = 0; + reject(reason); + } + + for (var i = 0; i < keys.length; i++) { + property = keys[i]; + entry = object[property]; + + if (isNonThenable(entry)) { + results[property] = entry; + if (--remaining === 0) { + resolve(results); + } + } else { + Promise.cast(entry).then(fulfilledTo(property), onRejection); + } + } + }); + }; + }); +define("rsvp/instrument", + ["./config","./utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var config = __dependency1__.config; + var now = __dependency2__.now; + + __exports__["default"] = function instrument(eventName, promise, child) { + // instrumentation should not disrupt normal usage. + try { + config.trigger(eventName, { + guid: promise._guidKey + promise._id, + eventName: eventName, + detail: promise._detail, + childGuid: child && promise._guidKey + child._id, + label: promise._label, + timeStamp: now(), + stack: new Error(promise._label).stack + }); + } catch(error) { + setTimeout(function(){ + throw error; + }, 0); + } + }; + }); +define("rsvp/map", + ["./promise","./all","./utils","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + var all = __dependency2__["default"]; + var isArray = __dependency3__.isArray; + var isFunction = __dependency3__.isFunction; + + /** + `RSVP.map` is similar to JavaScript's native `map` method, except that it + waits for all promises to become fulfilled before running the `mapFn` on + each item in given to `promises`. `RSVP.map` returns a promise that will + become fulfilled with the result of running `mapFn` on the values the promises + become fulfilled with. + + For example: + + ```javascript + + var promise1 = RSVP.resolve(1); + var promise2 = RSVP.resolve(2); + var promise3 = RSVP.resolve(3); + var promises = [ promise1, promise2, promise3 ]; + + var mapFn = function(item){ + return item + 1; + }; + + RSVP.map(promises, mapFn).then(function(result){ + // result is [ 2, 3, 4 ] + }); + ``` + + If any of the `promises` given to `RSVP.map` are rejected, the first promise + that is rejected will be given as an argument to the returned promise's + rejection handler. For example: + + ```javascript + var promise1 = RSVP.resolve(1); + var promise2 = RSVP.reject(new Error("2")); + var promise3 = RSVP.reject(new Error("3")); + var promises = [ promise1, promise2, promise3 ]; + + var mapFn = function(item){ + return item + 1; + }; + + RSVP.map(promises, mapFn).then(function(array){ + // Code here never runs because there are rejected promises! + }, function(reason) { + // reason.message === "2" + }); + ``` + + `RSVP.map` will also wait if a promise is returned from `mapFn`. For example, + say you want to get all comments from a set of blog posts, but you need + the blog posts first becuase they contain a url to those comments. + + ```javscript + + var mapFn = function(blogPost){ + // getComments does some ajax and returns an RSVP.Promise that is fulfilled + // with some comments data + return getComments(blogPost.comments_url); + }; + + // getBlogPosts does some ajax and returns an RSVP.Promise that is fulfilled + // with some blog post data + RSVP.map(getBlogPosts(), mapFn).then(function(comments){ + // comments is the result of asking the server for the comments + // of all blog posts returned from getBlogPosts() + }); + ``` + + @method map + @for RSVP + @param {Array} promises + @param {Function} mapFn function to be called on each fulfilled promise. + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Promise} promise that is fulfilled with the result of calling + `mapFn` on each fulfilled promise or value when they become fulfilled. + The promise will be rejected if any of the given `promises` become rejected. + @static + */ + __exports__["default"] = function map(promises, mapFn, label) { + return all(promises, label).then(function(results){ + if (!isArray(promises)) { + throw new TypeError('You must pass an array to map.'); + } + + if (!isFunction(mapFn)){ + throw new TypeError("You must pass a function to map's second argument."); + } + + + var resultLen = results.length, + mappedResults = [], + i; + + for (i = 0; i < resultLen; i++){ + mappedResults.push(mapFn(results[i])); + } + + return all(mappedResults, label); + }); + }; + }); +define("rsvp/node", + ["./promise","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + + var slice = Array.prototype.slice; + + function makeNodeCallbackFor(resolve, reject) { + return function (error, value) { + if (error) { + reject(error); + } else if (arguments.length > 2) { + resolve(slice.call(arguments, 1)); + } else { + resolve(value); + } + }; + } + + /** + `RSVP.denodeify` takes a "node-style" function and returns a function that + will return an `RSVP.Promise`. You can use `denodeify` in Node.js or the + browser when you'd prefer to use promises over using callbacks. For example, + `denodeify` transforms the following: + + ```javascript + var fs = require('fs'); + + fs.readFile('myfile.txt', function(err, data){ + if (err) return handleError(err); + handleData(data); + }); + ``` + + into: + + ```javascript + var fs = require('fs'); + + var readFile = RSVP.denodeify(fs.readFile); + + readFile('myfile.txt').then(handleData, handleError); + ``` + + Using `denodeify` makes it easier to compose asynchronous operations instead + of using callbacks. For example, instead of: + + ```javascript + var fs = require('fs'); + var log = require('some-async-logger'); + + fs.readFile('myfile.txt', function(err, data){ + if (err) return handleError(err); + fs.writeFile('myfile2.txt', data, function(err){ + if (err) throw err; + log('success', function(err) { + if (err) throw err; + }); + }); + }); + ``` + + You can chain the operations together using `then` from the returned promise: + + ```javascript + var fs = require('fs'); + var denodeify = RSVP.denodeify; + var readFile = denodeify(fs.readFile); + var writeFile = denodeify(fs.writeFile); + var log = denodeify(require('some-async-logger')); + + readFile('myfile.txt').then(function(data){ + return writeFile('myfile2.txt', data); + }).then(function(){ + return log('SUCCESS'); + }).then(function(){ + // success handler + }, function(reason){ + // rejection handler + }); + ``` + + @method denodeify + @for RSVP + @param {Function} nodeFunc a "node-style" function that takes a callback as + its last argument. The callback expects an error to be passed as its first + argument (if an error occurred, otherwise null), and the value from the + operation as its second argument ("function(err, value){ }"). + @param {Any} binding optional argument for binding the "this" value when + calling the `nodeFunc` function. + @return {Function} a function that wraps `nodeFunc` to return an + `RSVP.Promise` + @static + */ + __exports__["default"] = function denodeify(nodeFunc, binding) { + return function() { + var nodeArgs = slice.call(arguments), resolve, reject; + var thisArg = this || binding; + + return new Promise(function(resolve, reject) { + Promise.all(nodeArgs).then(function(nodeArgs) { + try { + nodeArgs.push(makeNodeCallbackFor(resolve, reject)); + nodeFunc.apply(thisArg, nodeArgs); + } catch(e) { + reject(e); + } + }); + }); + }; + }; + }); +define("rsvp/promise", + ["./config","./events","./instrument","./utils","./promise/cast","./promise/all","./promise/race","./promise/resolve","./promise/reject","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) { + "use strict"; + var config = __dependency1__.config; + var EventTarget = __dependency2__["default"]; + var instrument = __dependency3__["default"]; + var objectOrFunction = __dependency4__.objectOrFunction; + var isFunction = __dependency4__.isFunction; + var now = __dependency4__.now; + var cast = __dependency5__["default"]; + var all = __dependency6__["default"]; + var race = __dependency7__["default"]; + var Resolve = __dependency8__["default"]; + var Reject = __dependency9__["default"]; + + var guidKey = 'rsvp_' + now() + '-'; + var counter = 0; + + function noop() {} + + __exports__["default"] = Promise; + + + /** + Promise objects represent the eventual result of an asynchronous operation. The + primary way of interacting with a promise is through its `then` method, which + registers callbacks to receive either a promise’s eventual value or the reason + why the promise cannot be fulfilled. + + Terminology + ----------- + + - `promise` is an object or function with a `then` method whose behavior conforms to this specification. + - `thenable` is an object or function that defines a `then` method. + - `value` is any legal JavaScript value (including undefined, a thenable, or a promise). + - `exception` is a value that is thrown using the throw statement. + - `reason` is a value that indicates why a promise was rejected. + - `settled` the final resting state of a promise, fulfilled or rejected. + + A promise can be in one of three states: pending, fulfilled, or rejected. + + Promises that are fulfilled have a fulfillment value and are in the fulfilled + state. Promises that are rejected have a rejection reason and are in the + rejected state. A fulfillment value is never a thenable. Similarly, a + rejection reason is never a thenable. + + Promises can also be said to *resolve* a value. If this value is also a + promise, then the original promise's settled state will match the value's + settled state. So a promise that *resolves* a promise that rejects will + itself reject, and a promise that *resolves* a promise that fulfills will + itself fulfill. + + + Basic Usage: + ------------ + + ```js + var promise = new Promise(function(resolve, reject) { + // on success + resolve(value); + + // on failure + reject(reason); + }); + + promise.then(function(value) { + // on fulfillment + }, function(reason) { + // on rejection + }); + ``` + + Advanced Usage: + --------------- + + Promises shine when abstracting away asynchronous interactions such as + `XMLHttpRequest`s. + + ```js + function getJSON(url) { + return new Promise(function(resolve, reject){ + var xhr = new XMLHttpRequest(); + + xhr.open('GET', url); + xhr.onreadystatechange = handler; + xhr.responseType = 'json'; + xhr.setRequestHeader('Accept', 'application/json'); + xhr.send(); + + function handler() { + if (this.readyState === this.DONE) { + if (this.status === 200) { + resolve(this.response); + } else { + reject(new Error("getJSON: `" + url + "` failed with status: [" + this.status + "]"); + } + } + }; + }); + } + + getJSON('/posts.json').then(function(json) { + // on fulfillment + }, function(reason) { + // on rejection + }); + ``` + + Unlike callbacks, promises are great composable primitives. + + ```js + Promise.all([ + getJSON('/posts'), + getJSON('/comments') + ]).then(function(values){ + values[0] // => postsJSON + values[1] // => commentsJSON + + return values; + }); + ``` + + @class RSVP.Promise + @param {function} + @param {String} label optional string for labeling the promise. + Useful for tooling. + @constructor + */ + function Promise(resolver, label) { + if (!isFunction(resolver)) { + throw new TypeError('You must pass a resolver function as the first argument to the promise constructor'); + } + + if (!(this instanceof Promise)) { + throw new TypeError("Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function."); + } + + this._id = counter++; + this._label = label; + this._subscribers = []; + + if (config.instrument) { + instrument('created', this); + } + + if (noop !== resolver) { + invokeResolver(resolver, this); + } + } + + function invokeResolver(resolver, promise) { + function resolvePromise(value) { + resolve(promise, value); + } + + function rejectPromise(reason) { + reject(promise, reason); + } + + try { + resolver(resolvePromise, rejectPromise); + } catch(e) { + rejectPromise(e); + } + } + + Promise.cast = cast; + Promise.all = all; + Promise.race = race; + Promise.resolve = Resolve; + Promise.reject = Reject; + + var PENDING = void 0; + var SEALED = 0; + var FULFILLED = 1; + var REJECTED = 2; + + function subscribe(parent, child, onFulfillment, onRejection) { + var subscribers = parent._subscribers; + var length = subscribers.length; + + subscribers[length] = child; + subscribers[length + FULFILLED] = onFulfillment; + subscribers[length + REJECTED] = onRejection; + } + + function publish(promise, settled) { + var child, callback, subscribers = promise._subscribers, detail = promise._detail; + + if (config.instrument) { + instrument(settled === FULFILLED ? 'fulfilled' : 'rejected', promise); + } + + for (var i = 0; i < subscribers.length; i += 3) { + child = subscribers[i]; + callback = subscribers[i + settled]; + + invokeCallback(settled, child, callback, detail); + } + + promise._subscribers = null; + } + + Promise.prototype = { + constructor: Promise, + + _id: undefined, + _guidKey: guidKey, + _label: undefined, + + _state: undefined, + _detail: undefined, + _subscribers: undefined, + + _onerror: function (reason) { + config.trigger('error', reason); + }, + + /** + The primary way of interacting with a promise is through its `then` method, + which registers callbacks to receive either a promise's eventual value or the + reason why the promise cannot be fulfilled. + + ```js + findUser().then(function(user){ + // user is available + }, function(reason){ + // user is unavailable, and you are given the reason why + }); + ``` + + Chaining + -------- + + The return value of `then` is itself a promise. This second, "downstream" + promise is resolved with the return value of the first promise's fulfillment + or rejection handler, or rejected if the handler throws an exception. + + ```js + findUser().then(function (user) { + return user.name; + }, function (reason) { + return "default name"; + }).then(function (userName) { + // If `findUser` fulfilled, `userName` will be the user's name, otherwise it + // will be `"default name"` + }); + + findUser().then(function (user) { + throw new Error("Found user, but still unhappy"); + }, function (reason) { + throw new Error("`findUser` rejected and we're unhappy"); + }).then(function (value) { + // never reached + }, function (reason) { + // if `findUser` fulfilled, `reason` will be "Found user, but still unhappy". + // If `findUser` rejected, `reason` will be "`findUser` rejected and we're unhappy". + }); + ``` + If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream. + + ```js + findUser().then(function (user) { + throw new PedagogicalException("Upstream error"); + }).then(function (value) { + // never reached + }).then(function (value) { + // never reached + }, function (reason) { + // The `PedgagocialException` is propagated all the way down to here + }); + ``` + + Assimilation + ------------ + + Sometimes the value you want to propagate to a downstream promise can only be + retrieved asynchronously. This can be achieved by returning a promise in the + fulfillment or rejection handler. The downstream promise will then be pending + until the returned promise is settled. This is called *assimilation*. + + ```js + findUser().then(function (user) { + return findCommentsByAuthor(user); + }).then(function (comments) { + // The user's comments are now available + }); + ``` + + If the assimliated promise rejects, then the downstream promise will also reject. + + ```js + findUser().then(function (user) { + return findCommentsByAuthor(user); + }).then(function (comments) { + // If `findCommentsByAuthor` fulfills, we'll have the value here + }, function (reason) { + // If `findCommentsByAuthor` rejects, we'll have the reason here + }); + ``` + + Simple Example + -------------- + + Synchronous Example + + ```javascript + var result; + + try { + result = findResult(); + // success + } catch(reason) { + // failure + } + ``` + + Errback Example + + ```js + findResult(function(result, err){ + if (err) { + // failure + } else { + // success + } + }); + ``` + + Promise Example; + + ```javascript + findResult().then(function(result){ + // success + }, function(reason){ + // failure + }); + ``` + + Advanced Example + -------------- + + Synchronous Example + + ```javascript + var author, books; + + try { + author = findAuthor(); + books = findBooksByAuthor(author); + // success + } catch(reason) { + // failure + } + ``` + + Errback Example + + ```js + + function foundBooks(books) { + + } + + function failure(reason) { + + } + + findAuthor(function(author, err){ + if (err) { + failure(err); + // failure + } else { + try { + findBoooksByAuthor(author, function(books, err) { + if (err) { + failure(err); + } else { + try { + foundBooks(books); + } catch(reason) { + failure(reason); + } + } + }); + } catch(error) { + failure(err); + } + // success + } + }); + ``` + + Promise Example; + + ```javascript + findAuthor(). + then(findBooksByAuthor). + then(function(books){ + // found books + }).catch(function(reason){ + // something went wrong + }); + ``` + + @method then + @param {Function} onFulfilled + @param {Function} onRejected + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Promise} + */ + then: function(onFulfillment, onRejection, label) { + var promise = this; + this._onerror = null; + + var thenPromise = new this.constructor(noop, label); + + if (this._state) { + var callbacks = arguments; + config.async(function invokePromiseCallback() { + invokeCallback(promise._state, thenPromise, callbacks[promise._state - 1], promise._detail); + }); + } else { + subscribe(this, thenPromise, onFulfillment, onRejection); + } + + if (config.instrument) { + instrument('chained', promise, thenPromise); + } + + return thenPromise; + }, + + /** + `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same + as the catch block of a try/catch statement. + + ```js + function findAuthor(){ + throw new Error("couldn't find that author"); + } + + // synchronous + try { + findAuthor(); + } catch(reason) { + // something went wrong + } + + // async with promises + findAuthor().catch(function(reason){ + // something went wrong + }); + ``` + + @method catch + @param {Function} onRejection + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Promise} + */ + 'catch': function(onRejection, label) { + return this.then(null, onRejection, label); + }, + + /** + `finally` will be invoked regardless of the promise's fate just as native + try/catch/finally behaves + + Synchronous example: + + ```js + findAuthor() { + if (Math.random() > 0.5) { + throw new Error(); + } + return new Author(); + } + + try { + return findAuthor(); // succeed or fail + } catch(error) { + return findOtherAuther(); + } finally { + // always runs + // doesn't affect the return value + } + ``` + + Asynchronous example: + + ```js + findAuthor().catch(function(reason){ + return findOtherAuther(); + }).finally(function(){ + // author was either found, or not + }); + ``` + + @method finally + @param {Function} callback + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Promise} + */ + 'finally': function(callback, label) { + var constructor = this.constructor; + + return this.then(function(value) { + return constructor.cast(callback()).then(function(){ + return value; + }); + }, function(reason) { + return constructor.cast(callback()).then(function(){ + throw reason; + }); + }, label); + } + }; + + function invokeCallback(settled, promise, callback, detail) { + var hasCallback = isFunction(callback), + value, error, succeeded, failed; + + if (hasCallback) { + try { + value = callback(detail); + succeeded = true; + } catch(e) { + failed = true; + error = e; + } + } else { + value = detail; + succeeded = true; + } + + if (handleThenable(promise, value)) { + return; + } else if (hasCallback && succeeded) { + resolve(promise, value); + } else if (failed) { + reject(promise, error); + } else if (settled === FULFILLED) { + resolve(promise, value); + } else if (settled === REJECTED) { + reject(promise, value); + } + } + + function handleThenable(promise, value) { + var then = null, + resolved; + + try { + if (promise === value) { + throw new TypeError("A promises callback cannot return that same promise."); + } + + if (objectOrFunction(value)) { + then = value.then; + + if (isFunction(then)) { + then.call(value, function(val) { + if (resolved) { return true; } + resolved = true; + + if (value !== val) { + resolve(promise, val); + } else { + fulfill(promise, val); + } + }, function(val) { + if (resolved) { return true; } + resolved = true; + + reject(promise, val); + }, 'derived from: ' + (promise._label || ' unknown promise')); + + return true; + } + } + } catch (error) { + if (resolved) { return true; } + reject(promise, error); + return true; + } + + return false; + } + + function resolve(promise, value) { + if (promise === value) { + fulfill(promise, value); + } else if (!handleThenable(promise, value)) { + fulfill(promise, value); + } + } + + function fulfill(promise, value) { + if (promise._state !== PENDING) { return; } + promise._state = SEALED; + promise._detail = value; + + config.async(publishFulfillment, promise); + } + + function reject(promise, reason) { + if (promise._state !== PENDING) { return; } + promise._state = SEALED; + promise._detail = reason; + + config.async(publishRejection, promise); + } + + function publishFulfillment(promise) { + publish(promise, promise._state = FULFILLED); + } + + function publishRejection(promise) { + if (promise._onerror) { + promise._onerror(promise._detail); + } + + publish(promise, promise._state = REJECTED); + } + }); +define("rsvp/promise/all", + ["../utils","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var isArray = __dependency1__.isArray; + var isNonThenable = __dependency1__.isNonThenable; + + /** + `RSVP.Promise.all` accepts an array of promises, and returns a new promise which + is fulfilled with an array of fulfillment values for the passed promises, or + rejected with the reason of the first passed promise to be rejected. It casts all + elements of the passed iterable to promises as it runs this algorithm. + + Example: + + ```javascript + var promise1 = RSVP.resolve(1); + var promise2 = RSVP.resolve(2); + var promise3 = RSVP.resolve(3); + var promises = [ promise1, promise2, promise3 ]; + + RSVP.Promise.all(promises).then(function(array){ + // The array here would be [ 1, 2, 3 ]; + }); + ``` + + If any of the `promises` given to `RSVP.all` are rejected, the first promise + that is rejected will be given as an argument to the returned promises's + rejection handler. For example: + + Example: + + ```javascript + var promise1 = RSVP.resolve(1); + var promise2 = RSVP.reject(new Error("2")); + var promise3 = RSVP.reject(new Error("3")); + var promises = [ promise1, promise2, promise3 ]; + + RSVP.Promise.all(promises).then(function(array){ + // Code here never runs because there are rejected promises! + }, function(error) { + // error.message === "2" + }); + ``` + + @method all + @for Ember.RSVP.Promise + @param {Array} entries array of promises + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Promise} promise that is fulfilled when all `promises` have been + fulfilled, or rejected if any of them become rejected. + @static + */ + __exports__["default"] = function all(entries, label) { + + /*jshint validthis:true */ + var Constructor = this; + + return new Constructor(function(resolve, reject) { + if (!isArray(entries)) { + throw new TypeError('You must pass an array to all.'); + } + + var remaining = entries.length; + var results = new Array(remaining); + var entry, pending = true; + + if (remaining === 0) { + resolve(results); + return; + } + + function fulfillmentAt(index) { + return function(value) { + results[index] = value; + if (--remaining === 0) { + resolve(results); + } + }; + } + + function onRejection(reason) { + remaining = 0; + reject(reason); + } + + for (var index = 0; index < entries.length; index++) { + entry = entries[index]; + if (isNonThenable(entry)) { + results[index] = entry; + if (--remaining === 0) { + resolve(results); + } + } else { + Constructor.cast(entry).then(fulfillmentAt(index), onRejection); + } + } + }, label); + }; + }); +define("rsvp/promise/cast", + ["exports"], + function(__exports__) { + "use strict"; + /** + `RSVP.Promise.cast` coerces its argument to a promise, or returns the + argument if it is already a promise which shares a constructor with the caster. + + Example: + + ```javascript + var promise = RSVP.Promise.resolve(1); + var casted = RSVP.Promise.cast(promise); + + console.log(promise === casted); // true + ``` + + In the case of a promise whose constructor does not match, it is assimilated. + The resulting promise will fulfill or reject based on the outcome of the + promise being casted. + + Example: + + ```javascript + var thennable = $.getJSON('/api/foo'); + var casted = RSVP.Promise.cast(thennable); + + console.log(thennable === casted); // false + console.log(casted instanceof RSVP.Promise) // true + + casted.then(function(data) { + // data is the value getJSON fulfills with + }); + ``` + + In the case of a non-promise, a promise which will fulfill with that value is + returned. + + Example: + + ```javascript + var value = 1; // could be a number, boolean, string, undefined... + var casted = RSVP.Promise.cast(value); + + console.log(value === casted); // false + console.log(casted instanceof RSVP.Promise) // true + + casted.then(function(val) { + val === value // => true + }); + ``` + + `RSVP.Promise.cast` is similar to `RSVP.Promise.resolve`, but `RSVP.Promise.cast` differs in the + following ways: + + * `RSVP.Promise.cast` serves as a memory-efficient way of getting a promise, when you + have something that could either be a promise or a value. RSVP.resolve + will have the same effect but will create a new promise wrapper if the + argument is a promise. + * `RSVP.Promise.cast` is a way of casting incoming thenables or promise subclasses to + promises of the exact class specified, so that the resulting object's `then` is + ensured to have the behavior of the constructor you are calling cast on (i.e., RSVP.Promise). + + @method cast + @param {Object} object to be casted + @param {String} label optional string for labeling the promise. + Useful for tooling. + @return {Promise} promise + @static + */ + + __exports__["default"] = function cast(object, label) { + /*jshint validthis:true */ + var Constructor = this; + + if (object && typeof object === 'object' && object.constructor === Constructor) { + return object; + } + + return new Constructor(function(resolve) { + resolve(object); + }, label); + }; + }); +define("rsvp/promise/race", + ["../utils","exports"], + function(__dependency1__, __exports__) { + "use strict"; + /* global toString */ + + var isArray = __dependency1__.isArray; + var isFunction = __dependency1__.isFunction; + var isNonThenable = __dependency1__.isNonThenable; + + /** + `RSVP.Promise.race` returns a new promise which is settled in the same way as the + first passed promise to settle. + + Example: + + ```javascript + var promise1 = new RSVP.Promise(function(resolve, reject){ + setTimeout(function(){ + resolve("promise 1"); + }, 200); + }); + + var promise2 = new RSVP.Promise(function(resolve, reject){ + setTimeout(function(){ + resolve("promise 2"); + }, 100); + }); + + RSVP.Promise.race([promise1, promise2]).then(function(result){ + // result === "promise 2" because it was resolved before promise1 + // was resolved. + }); + ``` + + `RSVP.Promise.race` is deterministic in that only the state of the first + settled promise matters. For example, even if other promises given to the + `promises` array argument are resolved, but the first settled promise has + become rejected before the other promises became fulfilled, the returned + promise will become rejected: + + ```javascript + var promise1 = new RSVP.Promise(function(resolve, reject){ + setTimeout(function(){ + resolve("promise 1"); + }, 200); + }); + + var promise2 = new RSVP.Promise(function(resolve, reject){ + setTimeout(function(){ + reject(new Error("promise 2")); + }, 100); + }); + + RSVP.Promise.race([promise1, promise2]).then(function(result){ + // Code here never runs + }, function(reason){ + // reason.message === "promise2" because promise 2 became rejected before + // promise 1 became fulfilled + }); + ``` + + An example real-world use case is implementing timeouts: + + ```javascript + RSVP.Promise.race([ajax('foo.json'), timeout(5000)]) + ``` + + @method race + @param {Array} promises array of promises to observe + @param {String} label optional string for describing the promise returned. + Useful for tooling. + @return {Promise} a promise which settles in the same way as the first passed + promise to settle. + @static + */ + __exports__["default"] = function race(entries, label) { + /*jshint validthis:true */ + var Constructor = this, entry; + + return new Constructor(function(resolve, reject) { + if (!isArray(entries)) { + throw new TypeError('You must pass an array to race.'); + } + + var pending = true; + + function onFulfillment(value) { if (pending) { pending = false; resolve(value); } } + function onRejection(reason) { if (pending) { pending = false; reject(reason); } } + + for (var i = 0; i < entries.length; i++) { + entry = entries[i]; + if (isNonThenable(entry)) { + pending = false; + resolve(entry); + return; + } else { + Constructor.cast(entry).then(onFulfillment, onRejection); + } + } + }, label); + }; + }); +define("rsvp/promise/reject", + ["exports"], + function(__exports__) { + "use strict"; + /** + `RSVP.Promise.reject` returns a promise rejected with the passed `reason`. + It is shorthand for the following: + + ```javascript + var promise = new RSVP.Promise(function(resolve, reject){ + reject(new Error('WHOOPS')); + }); + + promise.then(function(value){ + // Code here doesn't run because the promise is rejected! + }, function(reason){ + // reason.message === 'WHOOPS' + }); + ``` + + Instead of writing the above, your code now simply becomes the following: + + ```javascript + var promise = RSVP.Promise.reject(new Error('WHOOPS')); + + promise.then(function(value){ + // Code here doesn't run because the promise is rejected! + }, function(reason){ + // reason.message === 'WHOOPS' + }); + ``` + + @method reject + @param {Any} reason value that the returned promise will be rejected with. + @param {String} label optional string for identifying the returned promise. + Useful for tooling. + @return {Promise} a promise rejected with the given `reason`. + @static + */ + __exports__["default"] = function reject(reason, label) { + /*jshint validthis:true */ + var Constructor = this; + + return new Constructor(function (resolve, reject) { + reject(reason); + }, label); + }; + }); +define("rsvp/promise/resolve", + ["exports"], + function(__exports__) { + "use strict"; + /** + `RSVP.Promise.resolve` returns a promise that will become resolved with the + passed `value`. It is shorthand for the following: + + ```javascript + var promise = new RSVP.Promise(function(resolve, reject){ + resolve(1); + }); + + promise.then(function(value){ + // value === 1 + }); + ``` + + Instead of writing the above, your code now simply becomes the following: + + ```javascript + var promise = RSVP.Promise.resolve(1); + + promise.then(function(value){ + // value === 1 + }); + ``` + + @method resolve + @param {Any} value value that the returned promise will be resolved with + @param {String} label optional string for identifying the returned promise. + Useful for tooling. + @return {Promise} a promise that will become fulfilled with the given + `value` + @static + */ + __exports__["default"] = function resolve(value, label) { + /*jshint validthis:true */ + var Constructor = this; + + return new Constructor(function(resolve, reject) { + resolve(value); + }, label); + }; + }); +define("rsvp/race", + ["./promise","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + + /** + This is a convenient alias for `RSVP.Promise.race`. + + @method race + @param {Array} array Array of promises. + @param {String} label An optional label. This is useful + for tooling. + @static + */ + __exports__["default"] = function race(array, label) { + return Promise.race(array, label); + }; + }); +define("rsvp/reject", + ["./promise","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + + /** + This is a convenient alias for `RSVP.Promise.reject`. + + @method reject + @for RSVP + @param {Any} reason value that the returned promise will be rejected with. + @param {String} label optional string for identifying the returned promise. + Useful for tooling. + @return {Promise} a promise rejected with the given `reason`. + @static + */ + __exports__["default"] = function reject(reason, label) { + return Promise.reject(reason, label); + }; + }); +define("rsvp/resolve", + ["./promise","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + + /** + This is a convenient alias for `RSVP.Promise.resolve`. + + @method resolve + @for RSVP + @param {Any} value value that the returned promise will be resolved with + @param {String} label optional string for identifying the returned promise. + Useful for tooling. + @return {Promise} a promise that will become fulfilled with the given + `value` + @static + */ + __exports__["default"] = function resolve(value, label) { + return Promise.resolve(value, label); + }; + }); +define("rsvp/rethrow", + ["exports"], + function(__exports__) { + "use strict"; + /** + `RSVP.rethrow` will rethrow an error on the next turn of the JavaScript event + loop in order to aid debugging. + + Promises A+ specifies that any exceptions that occur with a promise must be + caught by the promises implementation and bubbled to the last handler. For + this reason, it is recommended that you always specify a second rejection + handler function to `then`. However, `RSVP.rethrow` will throw the exception + outside of the promise, so it bubbles up to your console if in the browser, + or domain/cause uncaught exception in Node. `rethrow` will also throw the + error again so the error can be handled by the promise per the spec. + + ```javascript + function throws(){ + throw new Error('Whoops!'); + } + + var promise = new RSVP.Promise(function(resolve, reject){ + throws(); + }); + + promise.catch(RSVP.rethrow).then(function(){ + // Code here doesn't run because the promise became rejected due to an + // error! + }, function (err){ + // handle the error here + }); + ``` + + The 'Whoops' error will be thrown on the next turn of the event loop + and you can watch for it in your console. You can also handle it using a + rejection handler given to `.then` or `.catch` on the returned promise. + + @method rethrow + @for RSVP + @param {Error} reason reason the promise became rejected. + @throws Error + @static + */ + __exports__["default"] = function rethrow(reason) { + setTimeout(function() { + throw reason; + }); + throw reason; + }; + }); +define("rsvp/utils", + ["exports"], + function(__exports__) { + "use strict"; + function objectOrFunction(x) { + return typeof x === "function" || (typeof x === "object" && x !== null); + } + + __exports__.objectOrFunction = objectOrFunction;function isFunction(x) { + return typeof x === "function"; + } + + __exports__.isFunction = isFunction;function isNonThenable(x) { + return !objectOrFunction(x); + } + + __exports__.isNonThenable = isNonThenable;function isArray(x) { + return Object.prototype.toString.call(x) === "[object Array]"; + } + + __exports__.isArray = isArray;// Date.now is not available in browsers < IE9 + // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now#Compatibility + var now = Date.now || function() { return new Date().getTime(); }; + __exports__.now = now; + var keysOf = Object.keys || function(object) { + var result = []; + + for (var prop in object) { + result.push(prop); + } + + return result; + }; + __exports__.keysOf = keysOf; + }); +define("rsvp", + ["./rsvp/promise","./rsvp/events","./rsvp/node","./rsvp/all","./rsvp/all_settled","./rsvp/race","./rsvp/hash","./rsvp/rethrow","./rsvp/defer","./rsvp/config","./rsvp/map","./rsvp/resolve","./rsvp/reject","./rsvp/filter","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __exports__) { + "use strict"; + var Promise = __dependency1__["default"]; + var EventTarget = __dependency2__["default"]; + var denodeify = __dependency3__["default"]; + var all = __dependency4__["default"]; + var allSettled = __dependency5__["default"]; + var race = __dependency6__["default"]; + var hash = __dependency7__["default"]; + var rethrow = __dependency8__["default"]; + var defer = __dependency9__["default"]; + var config = __dependency10__.config; + var configure = __dependency10__.configure; + var map = __dependency11__["default"]; + var resolve = __dependency12__["default"]; + var reject = __dependency13__["default"]; + var filter = __dependency14__["default"]; + + function async(callback, arg) { + config.async(callback, arg); + } + + function on() { + config.on.apply(config, arguments); + } + + function off() { + config.off.apply(config, arguments); + } + + // Set up instrumentation through `window.__PROMISE_INTRUMENTATION__` + if (typeof window !== 'undefined' && typeof window.__PROMISE_INSTRUMENTATION__ === 'object') { + var callbacks = window.__PROMISE_INSTRUMENTATION__; + configure('instrument', true); + for (var eventName in callbacks) { + if (callbacks.hasOwnProperty(eventName)) { + on(eventName, callbacks[eventName]); + } + } + } + + __exports__.Promise = Promise; + __exports__.EventTarget = EventTarget; + __exports__.all = all; + __exports__.allSettled = allSettled; + __exports__.race = race; + __exports__.hash = hash; + __exports__.rethrow = rethrow; + __exports__.defer = defer; + __exports__.denodeify = denodeify; + __exports__.configure = configure; + __exports__.on = on; + __exports__.off = off; + __exports__.resolve = resolve; + __exports__.reject = reject; + __exports__.async = async; + __exports__.map = map; + __exports__.filter = filter; + }); + +})(); + +(function() { +define("container/container", + ["container/inheriting_dict","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var InheritingDict = __dependency1__["default"]; + + // A lightweight container that helps to assemble and decouple components. + // Public api for the container is still in flux. + // The public api, specified on the application namespace should be considered the stable api. + function Container(parent) { + this.parent = parent; + this.children = []; + + this.resolver = parent && parent.resolver || function() {}; + + this.registry = new InheritingDict(parent && parent.registry); + this.cache = new InheritingDict(parent && parent.cache); + this.factoryCache = new InheritingDict(parent && parent.factoryCache); + this.resolveCache = new InheritingDict(parent && parent.resolveCache); + this.typeInjections = new InheritingDict(parent && parent.typeInjections); + this.injections = {}; + + this.factoryTypeInjections = new InheritingDict(parent && parent.factoryTypeInjections); + this.factoryInjections = {}; + + this._options = new InheritingDict(parent && parent._options); + this._typeOptions = new InheritingDict(parent && parent._typeOptions); + } + + Container.prototype = { + + /** + @property parent + @type Container + @default null + */ + parent: null, + + /** + @property children + @type Array + @default [] + */ + children: null, + + /** + @property resolver + @type function + */ + resolver: null, + + /** + @property registry + @type InheritingDict + */ + registry: null, + + /** + @property cache + @type InheritingDict + */ + cache: null, + + /** + @property typeInjections + @type InheritingDict + */ + typeInjections: null, + + /** + @property injections + @type Object + @default {} + */ + injections: null, + + /** + @private + + @property _options + @type InheritingDict + @default null + */ + _options: null, + + /** + @private + + @property _typeOptions + @type InheritingDict + */ + _typeOptions: null, + + /** + Returns a new child of the current container. These children are configured + to correctly inherit from the current container. + + @method child + @return {Container} + */ + child: function() { + var container = new Container(this); + this.children.push(container); + return container; + }, + + /** + Sets a key-value pair on the current container. If a parent container, + has the same key, once set on a child, the parent and child will diverge + as expected. + + @method set + @param {Object} object + @param {String} key + @param {any} value + */ + set: function(object, key, value) { + object[key] = value; + }, + + /** + Registers a factory for later injection. + + Example: + + ```javascript + var container = new Container(); + + container.register('model:user', Person, {singleton: false }); + container.register('fruit:favorite', Orange); + container.register('communication:main', Email, {singleton: false}); + ``` + + @method register + @param {String} fullName + @param {Function} factory + @param {Object} options + */ + register: function(fullName, factory, options) { + validateFullName(fullName); + + if (factory === undefined) { + throw new TypeError('Attempting to register an unknown factory: `' + fullName + '`'); + } + + var normalizedName = this.normalize(fullName); + + if (this.cache.has(normalizedName)) { + throw new Error('Cannot re-register: `' + fullName +'`, as it has already been looked up.'); + } + + this.registry.set(normalizedName, factory); + this._options.set(normalizedName, options || {}); + }, + + /** + Unregister a fullName + + ```javascript + var container = new Container(); + container.register('model:user', User); + + container.lookup('model:user') instanceof User //=> true + + container.unregister('model:user') + container.lookup('model:user') === undefined //=> true + ``` + + @method unregister + @param {String} fullName + */ + unregister: function(fullName) { + validateFullName(fullName); + + var normalizedName = this.normalize(fullName); + + this.registry.remove(normalizedName); + this.cache.remove(normalizedName); + this.factoryCache.remove(normalizedName); + this.resolveCache.remove(normalizedName); + this._options.remove(normalizedName); + }, + + /** + Given a fullName return the corresponding factory. + + By default `resolve` will retrieve the factory from + its container's registry. + + ```javascript + var container = new Container(); + container.register('api:twitter', Twitter); + + container.resolve('api:twitter') // => Twitter + ``` + + Optionally the container can be provided with a custom resolver. + If provided, `resolve` will first provide the custom resolver + the oppertunity to resolve the fullName, otherwise it will fallback + to the registry. + + ```javascript + var container = new Container(); + container.resolver = function(fullName) { + // lookup via the module system of choice + }; + + // the twitter factory is added to the module system + container.resolve('api:twitter') // => Twitter + ``` + + @method resolve + @param {String} fullName + @return {Function} fullName's factory + */ + resolve: function(fullName) { + validateFullName(fullName); + + var normalizedName = this.normalize(fullName); + var cached = this.resolveCache.get(normalizedName); + + if (cached) { return cached; } + + var resolved = this.resolver(normalizedName) || this.registry.get(normalizedName); + + this.resolveCache.set(normalizedName, resolved); + + return resolved; + }, + + /** + A hook that can be used to describe how the resolver will + attempt to find the factory. + + For example, the default Ember `.describe` returns the full + class name (including namespace) where Ember's resolver expects + to find the `fullName`. + + @method describe + @param {String} fullName + @return {string} described fullName + */ + describe: function(fullName) { + return fullName; + }, + + /** + A hook to enable custom fullName normalization behaviour + + @method normalize + @param {String} fullName + @return {string} normalized fullName + */ + normalize: function(fullName) { + return fullName; + }, + + /** + @method makeToString + + @param {any} factory + @param {string} fullName + @return {function} toString function + */ + makeToString: function(factory, fullName) { + return factory.toString(); + }, + + /** + Given a fullName return a corresponding instance. + + The default behaviour is for lookup to return a singleton instance. + The singleton is scoped to the container, allowing multiple containers + to all have their own locally scoped singletons. + + ```javascript + var container = new Container(); + container.register('api:twitter', Twitter); + + var twitter = container.lookup('api:twitter'); + + twitter instanceof Twitter; // => true + + // by default the container will return singletons + var twitter2 = container.lookup('api:twitter'); + twitter instanceof Twitter; // => true + + twitter === twitter2; //=> true + ``` + + If singletons are not wanted an optional flag can be provided at lookup. + + ```javascript + var container = new Container(); + container.register('api:twitter', Twitter); + + var twitter = container.lookup('api:twitter', { singleton: false }); + var twitter2 = container.lookup('api:twitter', { singleton: false }); + + twitter === twitter2; //=> false + ``` + + @method lookup + @param {String} fullName + @param {Object} options + @return {any} + */ + lookup: function(fullName, options) { + validateFullName(fullName); + return lookup(this, this.normalize(fullName), options); + }, + + /** + Given a fullName return the corresponding factory. + + @method lookupFactory + @param {String} fullName + @return {any} + */ + lookupFactory: function(fullName) { + validateFullName(fullName); + return factoryFor(this, this.normalize(fullName)); + }, + + /** + Given a fullName check if the container is aware of its factory + or singleton instance. + + @method has + @param {String} fullName + @return {Boolean} + */ + has: function(fullName) { + validateFullName(fullName); + return has(this, this.normalize(fullName)); + }, + + /** + Allow registering options for all factories of a type. + + ```javascript + var container = new Container(); + + // if all of type `connection` must not be singletons + container.optionsForType('connection', { singleton: false }); + + container.register('connection:twitter', TwitterConnection); + container.register('connection:facebook', FacebookConnection); + + var twitter = container.lookup('connection:twitter'); + var twitter2 = container.lookup('connection:twitter'); + + twitter === twitter2; // => false + + var facebook = container.lookup('connection:facebook'); + var facebook2 = container.lookup('connection:facebook'); + + facebook === facebook2; // => false + ``` + + @method optionsForType + @param {String} type + @param {Object} options + */ + optionsForType: function(type, options) { + if (this.parent) { illegalChildOperation('optionsForType'); } + + this._typeOptions.set(type, options); + }, + + /** + @method options + @param {String} type + @param {Object} options + */ + options: function(type, options) { + this.optionsForType(type, options); + }, + + /** + Used only via `injection`. + + Provides a specialized form of injection, specifically enabling + all objects of one type to be injected with a reference to another + object. + + For example, provided each object of type `controller` needed a `router`. + one would do the following: + + ```javascript + var container = new Container(); + + container.register('router:main', Router); + container.register('controller:user', UserController); + container.register('controller:post', PostController); + + container.typeInjection('controller', 'router', 'router:main'); + + var user = container.lookup('controller:user'); + var post = container.lookup('controller:post'); + + user.router instanceof Router; //=> true + post.router instanceof Router; //=> true + + // both controllers share the same router + user.router === post.router; //=> true + ``` + + @private + @method typeInjection + @param {String} type + @param {String} property + @param {String} fullName + */ + typeInjection: function(type, property, fullName) { + validateFullName(fullName); + if (this.parent) { illegalChildOperation('typeInjection'); } + + var fullNameType = fullName.split(':')[0]; + if(fullNameType === type) { + throw new Error('Cannot inject a `' + fullName + '` on other ' + type + '(s). Register the `' + fullName + '` as a different type and perform the typeInjection.'); + } + addTypeInjection(this.typeInjections, type, property, fullName); + }, + + /** + Defines injection rules. + + These rules are used to inject dependencies onto objects when they + are instantiated. + + Two forms of injections are possible: + + * Injecting one fullName on another fullName + * Injecting one fullName on a type + + Example: + + ```javascript + var container = new Container(); + + container.register('source:main', Source); + container.register('model:user', User); + container.register('model:post', Post); + + // injecting one fullName on another fullName + // eg. each user model gets a post model + container.injection('model:user', 'post', 'model:post'); + + // injecting one fullName on another type + container.injection('model', 'source', 'source:main'); + + var user = container.lookup('model:user'); + var post = container.lookup('model:post'); + + user.source instanceof Source; //=> true + post.source instanceof Source; //=> true + + user.post instanceof Post; //=> true + + // and both models share the same source + user.source === post.source; //=> true + ``` + + @method injection + @param {String} factoryName + @param {String} property + @param {String} injectionName + */ + injection: function(fullName, property, injectionName) { + if (this.parent) { illegalChildOperation('injection'); } + + validateFullName(injectionName); + var normalizedInjectionName = this.normalize(injectionName); + + if (fullName.indexOf(':') === -1) { + return this.typeInjection(fullName, property, normalizedInjectionName); + } + + validateFullName(fullName); + var normalizedName = this.normalize(fullName); + + addInjection(this.injections, normalizedName, property, normalizedInjectionName); + }, + + + /** + Used only via `factoryInjection`. + + Provides a specialized form of injection, specifically enabling + all factory of one type to be injected with a reference to another + object. + + For example, provided each factory of type `model` needed a `store`. + one would do the following: + + ```javascript + var container = new Container(); + + container.register('store:main', SomeStore); + + container.factoryTypeInjection('model', 'store', 'store:main'); + + var store = container.lookup('store:main'); + var UserFactory = container.lookupFactory('model:user'); + + UserFactory.store instanceof SomeStore; //=> true + ``` + + @private + @method factoryTypeInjection + @param {String} type + @param {String} property + @param {String} fullName + */ + factoryTypeInjection: function(type, property, fullName) { + if (this.parent) { illegalChildOperation('factoryTypeInjection'); } + + addTypeInjection(this.factoryTypeInjections, type, property, this.normalize(fullName)); + }, + + /** + Defines factory injection rules. + + Similar to regular injection rules, but are run against factories, via + `Container#lookupFactory`. + + These rules are used to inject objects onto factories when they + are looked up. + + Two forms of injections are possible: + + * Injecting one fullName on another fullName + * Injecting one fullName on a type + + Example: + + ```javascript + var container = new Container(); + + container.register('store:main', Store); + container.register('store:secondary', OtherStore); + container.register('model:user', User); + container.register('model:post', Post); + + // injecting one fullName on another type + container.factoryInjection('model', 'store', 'store:main'); + + // injecting one fullName on another fullName + container.factoryInjection('model:post', 'secondaryStore', 'store:secondary'); + + var UserFactory = container.lookupFactory('model:user'); + var PostFactory = container.lookupFactory('model:post'); + var store = container.lookup('store:main'); + + UserFactory.store instanceof Store; //=> true + UserFactory.secondaryStore instanceof OtherStore; //=> false + + PostFactory.store instanceof Store; //=> true + PostFactory.secondaryStore instanceof OtherStore; //=> true + + // and both models share the same source instance + UserFactory.store === PostFactory.store; //=> true + ``` + + @method factoryInjection + @param {String} factoryName + @param {String} property + @param {String} injectionName + */ + factoryInjection: function(fullName, property, injectionName) { + if (this.parent) { illegalChildOperation('injection'); } + + var normalizedName = this.normalize(fullName); + var normalizedInjectionName = this.normalize(injectionName); + + validateFullName(injectionName); + + if (fullName.indexOf(':') === -1) { + return this.factoryTypeInjection(normalizedName, property, normalizedInjectionName); + } + + validateFullName(fullName); + + addInjection(this.factoryInjections, normalizedName, property, normalizedInjectionName); + }, + + /** + A depth first traversal, destroying the container, its descendant containers and all + their managed objects. + + @method destroy + */ + destroy: function() { + for (var i=0, l=this.children.length; i w. + */ + function compare(v, w) { + if (v === w) { return 0; } + + var type1 = typeOf(v); + var type2 = typeOf(w); + + if (Comparable) { + if (type1==='instance' && Comparable.detect(v.constructor)) { + return v.constructor.compare(v, w); + } + + if (type2 === 'instance' && Comparable.detect(w.constructor)) { + return 1-w.constructor.compare(w, v); + } + } + + // If we haven't yet generated a reverse-mapping of Ember.ORDER_DEFINITION, + // do so now. + var mapping = Ember.ORDER_DEFINITION_MAPPING; + if (!mapping) { + var order = Ember.ORDER_DEFINITION; + mapping = Ember.ORDER_DEFINITION_MAPPING = {}; + var idx, len; + for (idx = 0, len = order.length; idx < len; ++idx) { + mapping[order[idx]] = idx; + } + + // We no longer need Ember.ORDER_DEFINITION. + delete Ember.ORDER_DEFINITION; + } + + var type1Index = mapping[type1]; + var type2Index = mapping[type2]; + + if (type1Index < type2Index) { return -1; } + if (type1Index > type2Index) { return 1; } + + // types are equal - so we have to check values now + switch (type1) { + case 'boolean': + case 'number': + if (v < w) { return -1; } + if (v > w) { return 1; } + return 0; + + case 'string': + var comp = v.localeCompare(w); + if (comp < 0) { return -1; } + if (comp > 0) { return 1; } + return 0; + + case 'array': + var vLen = v.length; + var wLen = w.length; + var l = Math.min(vLen, wLen); + var r = 0; + var i = 0; + while (r === 0 && i < l) { + r = compare(v[i],w[i]); + i++; + } + if (r !== 0) { return r; } + + // all elements are equal now + // shorter array should be ordered first + if (vLen < wLen) { return -1; } + if (vLen > wLen) { return 1; } + // arrays are equal now + return 0; + + case 'instance': + if (Comparable && Comparable.detect(v)) { + return v.compare(v, w); + } + return 0; + + case 'date': + var vNum = v.getTime(); + var wNum = w.getTime(); + if (vNum < wNum) { return -1; } + if (vNum > wNum) { return 1; } + return 0; + + default: + return 0; + } + }; + + __exports__["default"] = compare; + }); +define("ember-runtime/computed/array_computed", + ["ember-metal/core","ember-runtime/computed/reduce_computed","ember-metal/enumerable_utils","ember-metal/platform","ember-metal/observer","ember-metal/error","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + var reduceComputed = __dependency2__.reduceComputed; + var ReduceComputedProperty = __dependency2__.ReduceComputedProperty; + var EnumerableUtils = __dependency3__["default"]; + var create = __dependency4__.create; + var addObserver = __dependency5__.addObserver; + var EmberError = __dependency6__["default"]; + + var a_slice = [].slice, + o_create = create, + forEach = EnumerableUtils.forEach; + + function ArrayComputedProperty() { + var cp = this; + + ReduceComputedProperty.apply(this, arguments); + + this.func = (function(reduceFunc) { + return function (propertyName) { + if (!cp._hasInstanceMeta(this, propertyName)) { + // When we recompute an array computed property, we need already + // retrieved arrays to be updated; we can't simply empty the cache and + // hope the array is re-retrieved. + forEach(cp._dependentKeys, function(dependentKey) { + addObserver(this, dependentKey, function() { + cp.recomputeOnce.call(this, propertyName); + }); + }, this); + } + + return reduceFunc.apply(this, arguments); + }; + })(this.func); + + return this; + } + + ArrayComputedProperty.prototype = o_create(ReduceComputedProperty.prototype); + ArrayComputedProperty.prototype.initialValue = function () { + return Ember.A(); + }; + ArrayComputedProperty.prototype.resetValue = function (array) { + array.clear(); + return array; + }; + + // This is a stopgap to keep the reference counts correct with lazy CPs. + ArrayComputedProperty.prototype.didChange = function (obj, keyName) { + return; + }; + + /** + Creates a computed property which operates on dependent arrays and + is updated with "one at a time" semantics. When items are added or + removed from the dependent array(s) an array computed only operates + on the change instead of re-evaluating the entire array. This should + return an array, if you'd like to use "one at a time" semantics and + compute some value other then an array look at + `Ember.reduceComputed`. + + If there are more than one arguments the first arguments are + considered to be dependent property keys. The last argument is + required to be an options object. The options object can have the + following three properties. + + `initialize` - An optional initialize function. Typically this will be used + to set up state on the instanceMeta object. + + `removedItem` - A function that is called each time an element is + removed from the array. + + `addedItem` - A function that is called each time an element is + added to the array. + + + The `initialize` function has the following signature: + + ```javascript + function (array, changeMeta, instanceMeta) + ``` + + `array` - The initial value of the arrayComputed, an empty array. + + `changeMeta` - An object which contains meta information about the + computed. It contains the following properties: + + - `property` the computed property + - `propertyName` the name of the property on the object + + `instanceMeta` - An object that can be used to store meta + information needed for calculating your computed. For example a + unique computed might use this to store the number of times a given + element is found in the dependent array. + + + The `removedItem` and `addedItem` functions both have the following signature: + + ```javascript + function (accumulatedValue, item, changeMeta, instanceMeta) + ``` + + `accumulatedValue` - The value returned from the last time + `removedItem` or `addedItem` was called or an empty array. + + `item` - the element added or removed from the array + + `changeMeta` - An object which contains meta information about the + change. It contains the following properties: + + - `property` the computed property + - `propertyName` the name of the property on the object + - `index` the index of the added or removed item + - `item` the added or removed item: this is exactly the same as + the second arg + - `arrayChanged` the array that triggered the change. Can be + useful when depending on multiple arrays. + + For property changes triggered on an item property change (when + depKey is something like `someArray.@each.someProperty`), + `changeMeta` will also contain the following property: + + - `previousValues` an object whose keys are the properties that changed on + the item, and whose values are the item's previous values. + + `previousValues` is important Ember coalesces item property changes via + Ember.run.once. This means that by the time removedItem gets called, item has + the new values, but you may need the previous value (eg for sorting & + filtering). + + `instanceMeta` - An object that can be used to store meta + information needed for calculating your computed. For example a + unique computed might use this to store the number of times a given + element is found in the dependent array. + + The `removedItem` and `addedItem` functions should return the accumulated + value. It is acceptable to not return anything (ie return undefined) + to invalidate the computation. This is generally not a good idea for + arrayComputed but it's used in eg max and min. + + Example + + ```javascript + Ember.computed.map = function(dependentKey, callback) { + var options = { + addedItem: function(array, item, changeMeta, instanceMeta) { + var mapped = callback(item); + array.insertAt(changeMeta.index, mapped); + return array; + }, + removedItem: function(array, item, changeMeta, instanceMeta) { + array.removeAt(changeMeta.index, 1); + return array; + } + }; + + return Ember.arrayComputed(dependentKey, options); + }; + ``` + + @method arrayComputed + @for Ember + @param {String} [dependentKeys*] + @param {Object} options + @return {Ember.ComputedProperty} + */ + function arrayComputed (options) { + var args; + + if (arguments.length > 1) { + args = a_slice.call(arguments, 0, -1); + options = a_slice.call(arguments, -1)[0]; + } + + if (typeof options !== "object") { + throw new EmberError("Array Computed Property declared without an options hash"); + } + + var cp = new ArrayComputedProperty(options); + + if (args) { + cp.property.apply(cp, args); + } + + return cp; + }; + + __exports__.arrayComputed = arrayComputed; + __exports__.ArrayComputedProperty = ArrayComputedProperty; + }); +define("ember-runtime/computed/reduce_computed", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/error","ember-metal/property_events","ember-metal/expand_properties","ember-metal/observer","ember-metal/computed","ember-metal/platform","ember-metal/enumerable_utils","ember-runtime/system/tracked_array","ember-runtime/mixins/array","ember-metal/run_loop","ember-runtime/system/set","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert + var e_get = __dependency2__.get; + var set = __dependency3__.set; + var guidFor = __dependency4__.guidFor; + var metaFor = __dependency4__.meta; + var EmberError = __dependency5__["default"]; + var propertyWillChange = __dependency6__.propertyWillChange; + var propertyDidChange = __dependency6__.propertyDidChange; + var expandProperties = __dependency7__["default"]; + var addObserver = __dependency8__.addObserver; + var observersFor = __dependency8__.observersFor; + var removeObserver = __dependency8__.removeObserver; + var addBeforeObserver = __dependency8__.addBeforeObserver; + var removeBeforeObserver = __dependency8__.removeBeforeObserver; + var ComputedProperty = __dependency9__.ComputedProperty; + var cacheFor = __dependency9__.cacheFor; + var create = __dependency10__.create; + var EnumerableUtils = __dependency11__["default"]; + var TrackedArray = __dependency12__["default"]; + var EmberArray = __dependency13__["default"]; + var run = __dependency14__["default"]; + var Set = __dependency15__["default"]; + var isArray = __dependency4__.isArray; + + var cacheSet = cacheFor.set, + cacheGet = cacheFor.get, + cacheRemove = cacheFor.remove, + a_slice = [].slice, + o_create = create, + forEach = EnumerableUtils.forEach, + // Here we explicitly don't allow `@each.foo`; it would require some special + // testing, but there's no particular reason why it should be disallowed. + eachPropertyPattern = /^(.*)\.@each\.(.*)/, + doubleEachPropertyPattern = /(.*\.@each){2,}/, + arrayBracketPattern = /\.\[\]$/; + + function get(obj, key) { + if (key === '@this') { + return obj; + } + + return e_get(obj, key); + } + + /* + Tracks changes to dependent arrays, as well as to properties of items in + dependent arrays. + + @class DependentArraysObserver + */ + function DependentArraysObserver(callbacks, cp, instanceMeta, context, propertyName, sugarMeta) { + // user specified callbacks for `addedItem` and `removedItem` + this.callbacks = callbacks; + + // the computed property: remember these are shared across instances + this.cp = cp; + + // the ReduceComputedPropertyInstanceMeta this DependentArraysObserver is + // associated with + this.instanceMeta = instanceMeta; + + // A map of array guids to dependentKeys, for the given context. We track + // this because we want to set up the computed property potentially before the + // dependent array even exists, but when the array observer fires, we lack + // enough context to know what to update: we can recover that context by + // getting the dependentKey. + this.dependentKeysByGuid = {}; + + // a map of dependent array guids -> TrackedArray instances. We use + // this to lazily recompute indexes for item property observers. + this.trackedArraysByGuid = {}; + + // We suspend observers to ignore replacements from `reset` when totally + // recomputing. Unfortunately we cannot properly suspend the observers + // because we only have the key; instead we make the observers no-ops + this.suspended = false; + + // This is used to coalesce item changes from property observers. + this.changedItems = {}; + } + + function ItemPropertyObserverContext (dependentArray, index, trackedArray) { + Ember.assert("Internal error: trackedArray is null or undefined", trackedArray); + + this.dependentArray = dependentArray; + this.index = index; + this.item = dependentArray.objectAt(index); + this.trackedArray = trackedArray; + this.beforeObserver = null; + this.observer = null; + + this.destroyed = false; + } + + DependentArraysObserver.prototype = { + setValue: function (newValue) { + this.instanceMeta.setValue(newValue, true); + }, + getValue: function () { + return this.instanceMeta.getValue(); + }, + + setupObservers: function (dependentArray, dependentKey) { + this.dependentKeysByGuid[guidFor(dependentArray)] = dependentKey; + + dependentArray.addArrayObserver(this, { + willChange: 'dependentArrayWillChange', + didChange: 'dependentArrayDidChange' + }); + + if (this.cp._itemPropertyKeys[dependentKey]) { + this.setupPropertyObservers(dependentKey, this.cp._itemPropertyKeys[dependentKey]); + } + }, + + teardownObservers: function (dependentArray, dependentKey) { + var itemPropertyKeys = this.cp._itemPropertyKeys[dependentKey] || []; + + delete this.dependentKeysByGuid[guidFor(dependentArray)]; + + this.teardownPropertyObservers(dependentKey, itemPropertyKeys); + + dependentArray.removeArrayObserver(this, { + willChange: 'dependentArrayWillChange', + didChange: 'dependentArrayDidChange' + }); + }, + + suspendArrayObservers: function (callback, binding) { + var oldSuspended = this.suspended; + this.suspended = true; + callback.call(binding); + this.suspended = oldSuspended; + }, + + setupPropertyObservers: function (dependentKey, itemPropertyKeys) { + var dependentArray = get(this.instanceMeta.context, dependentKey), + length = get(dependentArray, 'length'), + observerContexts = new Array(length); + + this.resetTransformations(dependentKey, observerContexts); + + forEach(dependentArray, function (item, index) { + var observerContext = this.createPropertyObserverContext(dependentArray, index, this.trackedArraysByGuid[dependentKey]); + observerContexts[index] = observerContext; + + forEach(itemPropertyKeys, function (propertyKey) { + addBeforeObserver(item, propertyKey, this, observerContext.beforeObserver); + addObserver(item, propertyKey, this, observerContext.observer); + }, this); + }, this); + }, + + teardownPropertyObservers: function (dependentKey, itemPropertyKeys) { + var dependentArrayObserver = this, + trackedArray = this.trackedArraysByGuid[dependentKey], + beforeObserver, + observer, + item; + + if (!trackedArray) { return; } + + trackedArray.apply(function (observerContexts, offset, operation) { + if (operation === TrackedArray.DELETE) { return; } + + forEach(observerContexts, function (observerContext) { + observerContext.destroyed = true; + beforeObserver = observerContext.beforeObserver; + observer = observerContext.observer; + item = observerContext.item; + + forEach(itemPropertyKeys, function (propertyKey) { + removeBeforeObserver(item, propertyKey, dependentArrayObserver, beforeObserver); + removeObserver(item, propertyKey, dependentArrayObserver, observer); + }); + }); + }); + }, + + createPropertyObserverContext: function (dependentArray, index, trackedArray) { + var observerContext = new ItemPropertyObserverContext(dependentArray, index, trackedArray); + + this.createPropertyObserver(observerContext); + + return observerContext; + }, + + createPropertyObserver: function (observerContext) { + var dependentArrayObserver = this; + + observerContext.beforeObserver = function (obj, keyName) { + return dependentArrayObserver.itemPropertyWillChange(obj, keyName, observerContext.dependentArray, observerContext); + }; + observerContext.observer = function (obj, keyName) { + return dependentArrayObserver.itemPropertyDidChange(obj, keyName, observerContext.dependentArray, observerContext); + }; + }, + + resetTransformations: function (dependentKey, observerContexts) { + this.trackedArraysByGuid[dependentKey] = new TrackedArray(observerContexts); + }, + + trackAdd: function (dependentKey, index, newItems) { + var trackedArray = this.trackedArraysByGuid[dependentKey]; + if (trackedArray) { + trackedArray.addItems(index, newItems); + } + }, + + trackRemove: function (dependentKey, index, removedCount) { + var trackedArray = this.trackedArraysByGuid[dependentKey]; + + if (trackedArray) { + return trackedArray.removeItems(index, removedCount); + } + + return []; + }, + + updateIndexes: function (trackedArray, array) { + var length = get(array, 'length'); + // OPTIMIZE: we could stop updating once we hit the object whose observer + // fired; ie partially apply the transformations + trackedArray.apply(function (observerContexts, offset, operation) { + // we don't even have observer contexts for removed items, even if we did, + // they no longer have any index in the array + if (operation === TrackedArray.DELETE) { return; } + if (operation === TrackedArray.RETAIN && observerContexts.length === length && offset === 0) { + // If we update many items we don't want to walk the array each time: we + // only need to update the indexes at most once per run loop. + return; + } + + forEach(observerContexts, function (context, index) { + context.index = index + offset; + }); + }); + }, + + dependentArrayWillChange: function (dependentArray, index, removedCount, addedCount) { + if (this.suspended) { return; } + + var removedItem = this.callbacks.removedItem, + changeMeta, + guid = guidFor(dependentArray), + dependentKey = this.dependentKeysByGuid[guid], + itemPropertyKeys = this.cp._itemPropertyKeys[dependentKey] || [], + length = get(dependentArray, 'length'), + normalizedIndex = normalizeIndex(index, length, 0), + normalizedRemoveCount = normalizeRemoveCount(normalizedIndex, length, removedCount), + item, + itemIndex, + sliceIndex, + observerContexts; + + observerContexts = this.trackRemove(dependentKey, normalizedIndex, normalizedRemoveCount); + + function removeObservers(propertyKey) { + observerContexts[sliceIndex].destroyed = true; + removeBeforeObserver(item, propertyKey, this, observerContexts[sliceIndex].beforeObserver); + removeObserver(item, propertyKey, this, observerContexts[sliceIndex].observer); + } + + for (sliceIndex = normalizedRemoveCount - 1; sliceIndex >= 0; --sliceIndex) { + itemIndex = normalizedIndex + sliceIndex; + if (itemIndex >= length) { break; } + + item = dependentArray.objectAt(itemIndex); + + forEach(itemPropertyKeys, removeObservers, this); + + changeMeta = createChangeMeta(dependentArray, item, itemIndex, this.instanceMeta.propertyName, this.cp); + this.setValue( removedItem.call( + this.instanceMeta.context, this.getValue(), item, changeMeta, this.instanceMeta.sugarMeta)); + } + }, + + dependentArrayDidChange: function (dependentArray, index, removedCount, addedCount) { + if (this.suspended) { return; } + + var addedItem = this.callbacks.addedItem, + guid = guidFor(dependentArray), + dependentKey = this.dependentKeysByGuid[guid], + observerContexts = new Array(addedCount), + itemPropertyKeys = this.cp._itemPropertyKeys[dependentKey], + length = get(dependentArray, 'length'), + normalizedIndex = normalizeIndex(index, length, addedCount), + changeMeta, + observerContext; + + forEach(dependentArray.slice(normalizedIndex, normalizedIndex + addedCount), function (item, sliceIndex) { + if (itemPropertyKeys) { + observerContext = + observerContexts[sliceIndex] = + this.createPropertyObserverContext(dependentArray, normalizedIndex + sliceIndex, this.trackedArraysByGuid[dependentKey]); + forEach(itemPropertyKeys, function (propertyKey) { + addBeforeObserver(item, propertyKey, this, observerContext.beforeObserver); + addObserver(item, propertyKey, this, observerContext.observer); + }, this); + } + + changeMeta = createChangeMeta(dependentArray, item, normalizedIndex + sliceIndex, this.instanceMeta.propertyName, this.cp); + this.setValue( addedItem.call( + this.instanceMeta.context, this.getValue(), item, changeMeta, this.instanceMeta.sugarMeta)); + }, this); + + this.trackAdd(dependentKey, normalizedIndex, observerContexts); + }, + + itemPropertyWillChange: function (obj, keyName, array, observerContext) { + var guid = guidFor(obj); + + if (!this.changedItems[guid]) { + this.changedItems[guid] = { + array: array, + observerContext: observerContext, + obj: obj, + previousValues: {} + }; + } + + this.changedItems[guid].previousValues[keyName] = get(obj, keyName); + }, + + itemPropertyDidChange: function(obj, keyName, array, observerContext) { + this.flushChanges(); + }, + + flushChanges: function() { + var changedItems = this.changedItems, key, c, changeMeta; + + for (key in changedItems) { + c = changedItems[key]; + if (c.observerContext.destroyed) { continue; } + + this.updateIndexes(c.observerContext.trackedArray, c.observerContext.dependentArray); + + changeMeta = createChangeMeta(c.array, c.obj, c.observerContext.index, this.instanceMeta.propertyName, this.cp, c.previousValues); + this.setValue( + this.callbacks.removedItem.call(this.instanceMeta.context, this.getValue(), c.obj, changeMeta, this.instanceMeta.sugarMeta)); + this.setValue( + this.callbacks.addedItem.call(this.instanceMeta.context, this.getValue(), c.obj, changeMeta, this.instanceMeta.sugarMeta)); + } + this.changedItems = {}; + } + }; + + function normalizeIndex(index, length, newItemsOffset) { + if (index < 0) { + return Math.max(0, length + index); + } else if (index < length) { + return index; + } else /* index > length */ { + return Math.min(length - newItemsOffset, index); + } + } + + function normalizeRemoveCount(index, length, removedCount) { + return Math.min(removedCount, length - index); + } + + function createChangeMeta(dependentArray, item, index, propertyName, property, previousValues) { + var meta = { + arrayChanged: dependentArray, + index: index, + item: item, + propertyName: propertyName, + property: property + }; + + if (previousValues) { + // previous values only available for item property changes + meta.previousValues = previousValues; + } + + return meta; + } + + function addItems (dependentArray, callbacks, cp, propertyName, meta) { + forEach(dependentArray, function (item, index) { + meta.setValue( callbacks.addedItem.call( + this, meta.getValue(), item, createChangeMeta(dependentArray, item, index, propertyName, cp), meta.sugarMeta)); + }, this); + } + + function reset(cp, propertyName) { + var callbacks = cp._callbacks(), + meta; + + if (cp._hasInstanceMeta(this, propertyName)) { + meta = cp._instanceMeta(this, propertyName); + meta.setValue(cp.resetValue(meta.getValue())); + } else { + meta = cp._instanceMeta(this, propertyName); + } + + if (cp.options.initialize) { + cp.options.initialize.call(this, meta.getValue(), { property: cp, propertyName: propertyName }, meta.sugarMeta); + } + } + + function partiallyRecomputeFor(obj, dependentKey) { + if (arrayBracketPattern.test(dependentKey)) { + return false; + } + + var value = get(obj, dependentKey); + return EmberArray.detect(value); + } + + function ReduceComputedPropertyInstanceMeta(context, propertyName, initialValue) { + this.context = context; + this.propertyName = propertyName; + this.cache = metaFor(context).cache; + + this.dependentArrays = {}; + this.sugarMeta = {}; + + this.initialValue = initialValue; + } + + ReduceComputedPropertyInstanceMeta.prototype = { + getValue: function () { + var value = cacheGet(this.cache, this.propertyName); + if (value !== undefined) { + return value; + } else { + return this.initialValue; + } + }, + + setValue: function(newValue, triggerObservers) { + // This lets sugars force a recomputation, handy for very simple + // implementations of eg max. + if (newValue === cacheGet(this.cache, this.propertyName)) { + return; + } + + if (triggerObservers) { + propertyWillChange(this.context, this.propertyName); + } + + if (newValue === undefined) { + cacheRemove(this.cache, this.propertyName); + } else { + cacheSet(this.cache, this.propertyName, newValue); + } + + if (triggerObservers) { + propertyDidChange(this.context, this.propertyName); + } + } + }; + + /** + A computed property whose dependent keys are arrays and which is updated with + "one at a time" semantics. + + @class ReduceComputedProperty + @namespace Ember + @extends Ember.ComputedProperty + @constructor + */ + function ReduceComputedProperty(options) { + var cp = this; + + this.options = options; + + this._dependentKeys = null; + // A map of dependentKey -> [itemProperty, ...] that tracks what properties of + // items in the array we must track to update this property. + this._itemPropertyKeys = {}; + this._previousItemPropertyKeys = {}; + + this.readOnly(); + this.cacheable(); + + this.recomputeOnce = function(propertyName) { + // TODO: Coalesce recomputation by . + recompute.call(this, propertyName); + }; + + var recompute = function(propertyName) { + var dependentKeys = cp._dependentKeys, + meta = cp._instanceMeta(this, propertyName), + callbacks = cp._callbacks(); + + reset.call(this, cp, propertyName); + + meta.dependentArraysObserver.suspendArrayObservers(function () { + forEach(cp._dependentKeys, function (dependentKey) { + Ember.assert( + "dependent array " + dependentKey + " must be an `Ember.Array`. " + + "If you are not extending arrays, you will need to wrap native arrays with `Ember.A`", + !(isArray(get(this, dependentKey)) && !EmberArray.detect(get(this, dependentKey)))); + + if (!partiallyRecomputeFor(this, dependentKey)) { return; } + + var dependentArray = get(this, dependentKey), + previousDependentArray = meta.dependentArrays[dependentKey]; + + if (dependentArray === previousDependentArray) { + // The array may be the same, but our item property keys may have + // changed, so we set them up again. We can't easily tell if they've + // changed: the array may be the same object, but with different + // contents. + if (cp._previousItemPropertyKeys[dependentKey]) { + delete cp._previousItemPropertyKeys[dependentKey]; + meta.dependentArraysObserver.setupPropertyObservers(dependentKey, cp._itemPropertyKeys[dependentKey]); + } + } else { + meta.dependentArrays[dependentKey] = dependentArray; + + if (previousDependentArray) { + meta.dependentArraysObserver.teardownObservers(previousDependentArray, dependentKey); + } + + if (dependentArray) { + meta.dependentArraysObserver.setupObservers(dependentArray, dependentKey); + } + } + }, this); + }, this); + + forEach(cp._dependentKeys, function(dependentKey) { + if (!partiallyRecomputeFor(this, dependentKey)) { return; } + + var dependentArray = get(this, dependentKey); + if (dependentArray) { + addItems.call(this, dependentArray, callbacks, cp, propertyName, meta); + } + }, this); + }; + + + this.func = function (propertyName) { + Ember.assert("Computed reduce values require at least one dependent key", cp._dependentKeys); + + recompute.call(this, propertyName); + + return cp._instanceMeta(this, propertyName).getValue(); + }; + } + + ReduceComputedProperty.prototype = o_create(ComputedProperty.prototype); + + function defaultCallback(computedValue) { + return computedValue; + } + + ReduceComputedProperty.prototype._callbacks = function () { + if (!this.callbacks) { + var options = this.options; + this.callbacks = { + removedItem: options.removedItem || defaultCallback, + addedItem: options.addedItem || defaultCallback + }; + } + return this.callbacks; + }; + + ReduceComputedProperty.prototype._hasInstanceMeta = function (context, propertyName) { + return !!metaFor(context).cacheMeta[propertyName]; + }; + + ReduceComputedProperty.prototype._instanceMeta = function (context, propertyName) { + var cacheMeta = metaFor(context).cacheMeta, + meta = cacheMeta[propertyName]; + + if (!meta) { + meta = cacheMeta[propertyName] = new ReduceComputedPropertyInstanceMeta(context, propertyName, this.initialValue()); + meta.dependentArraysObserver = new DependentArraysObserver(this._callbacks(), this, meta, context, propertyName, meta.sugarMeta); + } + + return meta; + }; + + ReduceComputedProperty.prototype.initialValue = function () { + if (typeof this.options.initialValue === 'function') { + return this.options.initialValue(); + } + else { + return this.options.initialValue; + } + }; + + ReduceComputedProperty.prototype.resetValue = function (value) { + return this.initialValue(); + }; + + ReduceComputedProperty.prototype.itemPropertyKey = function (dependentArrayKey, itemPropertyKey) { + this._itemPropertyKeys[dependentArrayKey] = this._itemPropertyKeys[dependentArrayKey] || []; + this._itemPropertyKeys[dependentArrayKey].push(itemPropertyKey); + }; + + ReduceComputedProperty.prototype.clearItemPropertyKeys = function (dependentArrayKey) { + if (this._itemPropertyKeys[dependentArrayKey]) { + this._previousItemPropertyKeys[dependentArrayKey] = this._itemPropertyKeys[dependentArrayKey]; + this._itemPropertyKeys[dependentArrayKey] = []; + } + }; + + ReduceComputedProperty.prototype.property = function () { + var cp = this, + args = a_slice.call(arguments), + propertyArgs = new Set(), + match, + dependentArrayKey, + itemPropertyKey; + + forEach(args, function (dependentKey) { + if (doubleEachPropertyPattern.test(dependentKey)) { + throw new EmberError("Nested @each properties not supported: " + dependentKey); + } else if (match = eachPropertyPattern.exec(dependentKey)) { + dependentArrayKey = match[1]; + + var itemPropertyKeyPattern = match[2], + addItemPropertyKey = function (itemPropertyKey) { + cp.itemPropertyKey(dependentArrayKey, itemPropertyKey); + }; + + expandProperties(itemPropertyKeyPattern, addItemPropertyKey); + propertyArgs.add(dependentArrayKey); + } else { + propertyArgs.add(dependentKey); + } + }); + + return ComputedProperty.prototype.property.apply(this, propertyArgs.toArray()); + + }; + + /** + Creates a computed property which operates on dependent arrays and + is updated with "one at a time" semantics. When items are added or + removed from the dependent array(s) a reduce computed only operates + on the change instead of re-evaluating the entire array. + + If there are more than one arguments the first arguments are + considered to be dependent property keys. The last argument is + required to be an options object. The options object can have the + following four properties: + + `initialValue` - A value or function that will be used as the initial + value for the computed. If this property is a function the result of calling + the function will be used as the initial value. This property is required. + + `initialize` - An optional initialize function. Typically this will be used + to set up state on the instanceMeta object. + + `removedItem` - A function that is called each time an element is removed + from the array. + + `addedItem` - A function that is called each time an element is added to + the array. + + + The `initialize` function has the following signature: + + ```javascript + function (initialValue, changeMeta, instanceMeta) + ``` + + `initialValue` - The value of the `initialValue` property from the + options object. + + `changeMeta` - An object which contains meta information about the + computed. It contains the following properties: + + - `property` the computed property + - `propertyName` the name of the property on the object + + `instanceMeta` - An object that can be used to store meta + information needed for calculating your computed. For example a + unique computed might use this to store the number of times a given + element is found in the dependent array. + + + The `removedItem` and `addedItem` functions both have the following signature: + + ```javascript + function (accumulatedValue, item, changeMeta, instanceMeta) + ``` + + `accumulatedValue` - The value returned from the last time + `removedItem` or `addedItem` was called or `initialValue`. + + `item` - the element added or removed from the array + + `changeMeta` - An object which contains meta information about the + change. It contains the following properties: + + - `property` the computed property + - `propertyName` the name of the property on the object + - `index` the index of the added or removed item + - `item` the added or removed item: this is exactly the same as + the second arg + - `arrayChanged` the array that triggered the change. Can be + useful when depending on multiple arrays. + + For property changes triggered on an item property change (when + depKey is something like `someArray.@each.someProperty`), + `changeMeta` will also contain the following property: + + - `previousValues` an object whose keys are the properties that changed on + the item, and whose values are the item's previous values. + + `previousValues` is important Ember coalesces item property changes via + Ember.run.once. This means that by the time removedItem gets called, item has + the new values, but you may need the previous value (eg for sorting & + filtering). + + `instanceMeta` - An object that can be used to store meta + information needed for calculating your computed. For example a + unique computed might use this to store the number of times a given + element is found in the dependent array. + + The `removedItem` and `addedItem` functions should return the accumulated + value. It is acceptable to not return anything (ie return undefined) + to invalidate the computation. This is generally not a good idea for + arrayComputed but it's used in eg max and min. + + Note that observers will be fired if either of these functions return a value + that differs from the accumulated value. When returning an object that + mutates in response to array changes, for example an array that maps + everything from some other array (see `Ember.computed.map`), it is usually + important that the *same* array be returned to avoid accidentally triggering observers. + + Example + + ```javascript + Ember.computed.max = function (dependentKey) { + return Ember.reduceComputed(dependentKey, { + initialValue: -Infinity, + + addedItem: function (accumulatedValue, item, changeMeta, instanceMeta) { + return Math.max(accumulatedValue, item); + }, + + removedItem: function (accumulatedValue, item, changeMeta, instanceMeta) { + if (item < accumulatedValue) { + return accumulatedValue; + } + } + }); + }; + ``` + + Dependent keys may refer to `@this` to observe changes to the object itself, + which must be array-like, rather than a property of the object. This is + mostly useful for array proxies, to ensure objects are retrieved via + `objectAtContent`. This is how you could sort items by properties defined on an item controller. + + Example + + ```javascript + App.PeopleController = Ember.ArrayController.extend({ + itemController: 'person', + + sortedPeople: Ember.computed.sort('@this.@each.reversedName', function(personA, personB) { + // `reversedName` isn't defined on Person, but we have access to it via + // the item controller App.PersonController. If we'd used + // `content.@each.reversedName` above, we would be getting the objects + // directly and not have access to `reversedName`. + // + var reversedNameA = get(personA, 'reversedName'), + reversedNameB = get(personB, 'reversedName'); + + return Ember.compare(reversedNameA, reversedNameB); + }) + }); + + App.PersonController = Ember.ObjectController.extend({ + reversedName: function () { + return reverse(get(this, 'name')); + }.property('name') + }) + ``` + + Dependent keys whose values are not arrays are treated as regular + dependencies: when they change, the computed property is completely + recalculated. It is sometimes useful to have dependent arrays with similar + semantics. Dependent keys which end in `.[]` do not use "one at a time" + semantics. When an item is added or removed from such a dependency, the + computed property is completely recomputed. + + When the computed property is completely recomputed, the `accumulatedValue` + is discarded, it starts with `initialValue` again, and each item is passed + to `addedItem` in turn. + + Example + + ```javascript + Ember.Object.extend({ + // When `string` is changed, `computed` is completely recomputed. + string: 'a string', + + // When an item is added to `array`, `addedItem` is called. + array: [], + + // When an item is added to `anotherArray`, `computed` is completely + // recomputed. + anotherArray: [], + + computed: Ember.reduceComputed('string', 'array', 'anotherArray.[]', { + addedItem: addedItemCallback, + removedItem: removedItemCallback + }) + }); + ``` + + @method reduceComputed + @for Ember + @param {String} [dependentKeys*] + @param {Object} options + @return {Ember.ComputedProperty} + */ + function reduceComputed(options) { + var args; + + if (arguments.length > 1) { + args = a_slice.call(arguments, 0, -1); + options = a_slice.call(arguments, -1)[0]; + } + + if (typeof options !== "object") { + throw new EmberError("Reduce Computed Property declared without an options hash"); + } + + if (!('initialValue' in options)) { + throw new EmberError("Reduce Computed Property declared without an initial value"); + } + + var cp = new ReduceComputedProperty(options); + + if (args) { + cp.property.apply(cp, args); + } + + return cp; + }; + + __exports__.reduceComputed = reduceComputed; + __exports__.ReduceComputedProperty = ReduceComputedProperty; + }); +define("ember-runtime/computed/reduce_computed_macros", + ["ember-metal/core","ember-metal/merge","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/error","ember-metal/enumerable_utils","ember-metal/run_loop","ember-metal/observer","ember-runtime/computed/array_computed","ember-runtime/computed/reduce_computed","ember-runtime/system/object_proxy","ember-runtime/system/subarray","ember-runtime/keys","ember-runtime/compare","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var Ember = __dependency1__["default"]; + // Ember.assert + var merge = __dependency2__["default"]; + var get = __dependency3__.get; + var set = __dependency4__.set; + var isArray = __dependency5__.isArray; + var guidFor = __dependency5__.guidFor; + var EmberError = __dependency6__["default"]; + var EnumerableUtils = __dependency7__["default"]; + var run = __dependency8__["default"]; + var addObserver = __dependency9__.addObserver; + var arrayComputed = __dependency10__.arrayComputed; + var reduceComputed = __dependency11__.reduceComputed; + var ObjectProxy = __dependency12__["default"]; + var SubArray = __dependency13__["default"]; + var keys = __dependency14__["default"]; + var compare = __dependency15__["default"]; + + var a_slice = [].slice, + forEach = EnumerableUtils.forEach, + SearchProxy; + + /** + A computed property that returns the sum of the value + in the dependent array. + + @method computed.sum + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computes the sum of all values in the dependentKey's array + */ + + function sum(dependentKey){ + return reduceComputed(dependentKey, { + initialValue: 0, + + addedItem: function(accumulatedValue, item, changeMeta, instanceMeta){ + return accumulatedValue + item; + }, + + removedItem: function(accumulatedValue, item, changeMeta, instanceMeta){ + return accumulatedValue - item; + } + }); + }; + + /** + A computed property that calculates the maximum value in the + dependent array. This will return `-Infinity` when the dependent + array is empty. + + ```javascript + App.Person = Ember.Object.extend({ + childAges: Ember.computed.mapBy('children', 'age'), + maxChildAge: Ember.computed.max('childAges') + }); + + var lordByron = App.Person.create({children: []}); + lordByron.get('maxChildAge'); // -Infinity + lordByron.get('children').pushObject({ + name: 'Augusta Ada Byron', age: 7 + }); + lordByron.get('maxChildAge'); // 7 + lordByron.get('children').pushObjects([{ + name: 'Allegra Byron', + age: 5 + }, { + name: 'Elizabeth Medora Leigh', + age: 8 + }]); + lordByron.get('maxChildAge'); // 8 + ``` + + @method computed.max + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computes the largest value in the dependentKey's array + */ + function max (dependentKey) { + return reduceComputed(dependentKey, { + initialValue: -Infinity, + + addedItem: function (accumulatedValue, item, changeMeta, instanceMeta) { + return Math.max(accumulatedValue, item); + }, + + removedItem: function (accumulatedValue, item, changeMeta, instanceMeta) { + if (item < accumulatedValue) { + return accumulatedValue; + } + } + }); + }; + + /** + A computed property that calculates the minimum value in the + dependent array. This will return `Infinity` when the dependent + array is empty. + + ```javascript + App.Person = Ember.Object.extend({ + childAges: Ember.computed.mapBy('children', 'age'), + minChildAge: Ember.computed.min('childAges') + }); + + var lordByron = App.Person.create({children: []}); + lordByron.get('minChildAge'); // Infinity + lordByron.get('children').pushObject({ + name: 'Augusta Ada Byron', age: 7 + }); + lordByron.get('minChildAge'); // 7 + lordByron.get('children').pushObjects([{ + name: 'Allegra Byron', + age: 5 + }, { + name: 'Elizabeth Medora Leigh', + age: 8 + }]); + lordByron.get('minChildAge'); // 5 + ``` + + @method computed.min + @for Ember + @param {String} dependentKey + @return {Ember.ComputedProperty} computes the smallest value in the dependentKey's array + */ + function min(dependentKey) { + return reduceComputed(dependentKey, { + initialValue: Infinity, + + addedItem: function (accumulatedValue, item, changeMeta, instanceMeta) { + return Math.min(accumulatedValue, item); + }, + + removedItem: function (accumulatedValue, item, changeMeta, instanceMeta) { + if (item > accumulatedValue) { + return accumulatedValue; + } + } + }); + }; + + /** + Returns an array mapped via the callback + + The callback method you provide should have the following signature. + `item` is the current item in the iteration. + + ```javascript + function(item); + ``` + + Example + + ```javascript + App.Hamster = Ember.Object.extend({ + excitingChores: Ember.computed.map('chores', function(chore) { + return chore.toUpperCase() + '!'; + }) + }); + + var hamster = App.Hamster.create({ + chores: ['clean', 'write more unit tests'] + }); + hamster.get('excitingChores'); // ['CLEAN!', 'WRITE MORE UNIT TESTS!'] + ``` + + @method computed.map + @for Ember + @param {String} dependentKey + @param {Function} callback + @return {Ember.ComputedProperty} an array mapped via the callback + */ + function map(dependentKey, callback) { + var options = { + addedItem: function(array, item, changeMeta, instanceMeta) { + var mapped = callback.call(this, item); + array.insertAt(changeMeta.index, mapped); + return array; + }, + removedItem: function(array, item, changeMeta, instanceMeta) { + array.removeAt(changeMeta.index, 1); + return array; + } + }; + + return arrayComputed(dependentKey, options); + }; + + /** + Returns an array mapped to the specified key. + + ```javascript + App.Person = Ember.Object.extend({ + childAges: Ember.computed.mapBy('children', 'age') + }); + + var lordByron = App.Person.create({children: []}); + lordByron.get('childAges'); // [] + lordByron.get('children').pushObject({name: 'Augusta Ada Byron', age: 7}); + lordByron.get('childAges'); // [7] + lordByron.get('children').pushObjects([{ + name: 'Allegra Byron', + age: 5 + }, { + name: 'Elizabeth Medora Leigh', + age: 8 + }]); + lordByron.get('childAges'); // [7, 5, 8] + ``` + + @method computed.mapBy + @for Ember + @param {String} dependentKey + @param {String} propertyKey + @return {Ember.ComputedProperty} an array mapped to the specified key + */ + function mapBy (dependentKey, propertyKey) { + var callback = function(item) { return get(item, propertyKey); }; + return map(dependentKey + '.@each.' + propertyKey, callback); + }; + + /** + @method computed.mapProperty + @for Ember + @deprecated Use `Ember.computed.mapBy` instead + @param dependentKey + @param propertyKey + */ + var mapProperty = mapBy; + + /** + Filters the array by the callback. + + The callback method you provide should have the following signature. + `item` is the current item in the iteration. + + ```javascript + function(item); + ``` + + ```javascript + App.Hamster = Ember.Object.extend({ + remainingChores: Ember.computed.filter('chores', function(chore) { + return !chore.done; + }) + }); + + var hamster = App.Hamster.create({chores: [ + {name: 'cook', done: true}, + {name: 'clean', done: true}, + {name: 'write more unit tests', done: false} + ]}); + hamster.get('remainingChores'); // [{name: 'write more unit tests', done: false}] + ``` + + @method computed.filter + @for Ember + @param {String} dependentKey + @param {Function} callback + @return {Ember.ComputedProperty} the filtered array + */ + function filter(dependentKey, callback) { + var options = { + initialize: function (array, changeMeta, instanceMeta) { + instanceMeta.filteredArrayIndexes = new SubArray(); + }, + + addedItem: function(array, item, changeMeta, instanceMeta) { + var match = !!callback.call(this, item), + filterIndex = instanceMeta.filteredArrayIndexes.addItem(changeMeta.index, match); + + if (match) { + array.insertAt(filterIndex, item); + } + + return array; + }, + + removedItem: function(array, item, changeMeta, instanceMeta) { + var filterIndex = instanceMeta.filteredArrayIndexes.removeItem(changeMeta.index); + + if (filterIndex > -1) { + array.removeAt(filterIndex); + } + + return array; + } + }; + + return arrayComputed(dependentKey, options); + }; + + /** + Filters the array by the property and value + + ```javascript + App.Hamster = Ember.Object.extend({ + remainingChores: Ember.computed.filterBy('chores', 'done', false) + }); + + var hamster = App.Hamster.create({chores: [ + {name: 'cook', done: true}, + {name: 'clean', done: true}, + {name: 'write more unit tests', done: false} + ]}); + hamster.get('remainingChores'); // [{name: 'write more unit tests', done: false}] + ``` + + @method computed.filterBy + @for Ember + @param {String} dependentKey + @param {String} propertyKey + @param {*} value + @return {Ember.ComputedProperty} the filtered array + */ + function filterBy (dependentKey, propertyKey, value) { + var callback; + + if (arguments.length === 2) { + callback = function(item) { + return get(item, propertyKey); + }; + } else { + callback = function(item) { + return get(item, propertyKey) === value; + }; + } + + return filter(dependentKey + '.@each.' + propertyKey, callback); + }; + + /** + @method computed.filterProperty + @for Ember + @param dependentKey + @param propertyKey + @param value + @deprecated Use `Ember.computed.filterBy` instead + */ + var filterProperty = filterBy; + + /** + A computed property which returns a new array with all the unique + elements from one or more dependent arrays. + + Example + + ```javascript + App.Hamster = Ember.Object.extend({ + uniqueFruits: Ember.computed.uniq('fruits') + }); + + var hamster = App.Hamster.create({fruits: [ + 'banana', + 'grape', + 'kale', + 'banana' + ]}); + hamster.get('uniqueFruits'); // ['banana', 'grape', 'kale'] + ``` + + @method computed.uniq + @for Ember + @param {String} propertyKey* + @return {Ember.ComputedProperty} computes a new array with all the + unique elements from the dependent array + */ + function uniq() { + var args = a_slice.call(arguments); + args.push({ + initialize: function(array, changeMeta, instanceMeta) { + instanceMeta.itemCounts = {}; + }, + + addedItem: function(array, item, changeMeta, instanceMeta) { + var guid = guidFor(item); + + if (!instanceMeta.itemCounts[guid]) { + instanceMeta.itemCounts[guid] = 1; + } else { + ++instanceMeta.itemCounts[guid]; + } + array.addObject(item); + return array; + }, + removedItem: function(array, item, _, instanceMeta) { + var guid = guidFor(item), + itemCounts = instanceMeta.itemCounts; + + if (--itemCounts[guid] === 0) { + array.removeObject(item); + } + return array; + } + }); + return arrayComputed.apply(null, args); + }; + + /** + Alias for [Ember.computed.uniq](/api/#method_computed_uniq). + + @method computed.union + @for Ember + @param {String} propertyKey* + @return {Ember.ComputedProperty} computes a new array with all the + unique elements from the dependent array + */ + var union = uniq; + + /** + A computed property which returns a new array with all the duplicated + elements from two or more dependent arrays. + + Example + + ```javascript + var obj = Ember.Object.createWithMixins({ + adaFriends: ['Charles Babbage', 'John Hobhouse', 'William King', 'Mary Somerville'], + charlesFriends: ['William King', 'Mary Somerville', 'Ada Lovelace', 'George Peacock'], + friendsInCommon: Ember.computed.intersect('adaFriends', 'charlesFriends') + }); + + obj.get('friendsInCommon'); // ['William King', 'Mary Somerville'] + ``` + + @method computed.intersect + @for Ember + @param {String} propertyKey* + @return {Ember.ComputedProperty} computes a new array with all the + duplicated elements from the dependent arrays + */ + function intersect() { + var getDependentKeyGuids = function (changeMeta) { + return EnumerableUtils.map(changeMeta.property._dependentKeys, function (dependentKey) { + return guidFor(dependentKey); + }); + }; + + var args = a_slice.call(arguments); + args.push({ + initialize: function (array, changeMeta, instanceMeta) { + instanceMeta.itemCounts = {}; + }, + + addedItem: function(array, item, changeMeta, instanceMeta) { + var itemGuid = guidFor(item), + dependentGuids = getDependentKeyGuids(changeMeta), + dependentGuid = guidFor(changeMeta.arrayChanged), + numberOfDependentArrays = changeMeta.property._dependentKeys.length, + itemCounts = instanceMeta.itemCounts; + + if (!itemCounts[itemGuid]) { itemCounts[itemGuid] = {}; } + if (itemCounts[itemGuid][dependentGuid] === undefined) { itemCounts[itemGuid][dependentGuid] = 0; } + + if (++itemCounts[itemGuid][dependentGuid] === 1 && + numberOfDependentArrays === keys(itemCounts[itemGuid]).length) { + + array.addObject(item); + } + return array; + }, + removedItem: function(array, item, changeMeta, instanceMeta) { + var itemGuid = guidFor(item), + dependentGuids = getDependentKeyGuids(changeMeta), + dependentGuid = guidFor(changeMeta.arrayChanged), + numberOfDependentArrays = changeMeta.property._dependentKeys.length, + numberOfArraysItemAppearsIn, + itemCounts = instanceMeta.itemCounts; + + if (itemCounts[itemGuid][dependentGuid] === undefined) { itemCounts[itemGuid][dependentGuid] = 0; } + if (--itemCounts[itemGuid][dependentGuid] === 0) { + delete itemCounts[itemGuid][dependentGuid]; + numberOfArraysItemAppearsIn = keys(itemCounts[itemGuid]).length; + + if (numberOfArraysItemAppearsIn === 0) { + delete itemCounts[itemGuid]; + } + array.removeObject(item); + } + return array; + } + }); + return arrayComputed.apply(null, args); + }; + + /** + A computed property which returns a new array with all the + properties from the first dependent array that are not in the second + dependent array. + + Example + + ```javascript + App.Hamster = Ember.Object.extend({ + likes: ['banana', 'grape', 'kale'], + wants: Ember.computed.setDiff('likes', 'fruits') + }); + + var hamster = App.Hamster.create({fruits: [ + 'grape', + 'kale', + ]}); + hamster.get('wants'); // ['banana'] + ``` + + @method computed.setDiff + @for Ember + @param {String} setAProperty + @param {String} setBProperty + @return {Ember.ComputedProperty} computes a new array with all the + items from the first dependent array that are not in the second + dependent array + */ + function setDiff(setAProperty, setBProperty) { + if (arguments.length !== 2) { + throw new EmberError("setDiff requires exactly two dependent arrays."); + } + return arrayComputed(setAProperty, setBProperty, { + addedItem: function (array, item, changeMeta, instanceMeta) { + var setA = get(this, setAProperty), + setB = get(this, setBProperty); + + if (changeMeta.arrayChanged === setA) { + if (!setB.contains(item)) { + array.addObject(item); + } + } else { + array.removeObject(item); + } + return array; + }, + + removedItem: function (array, item, changeMeta, instanceMeta) { + var setA = get(this, setAProperty), + setB = get(this, setBProperty); + + if (changeMeta.arrayChanged === setB) { + if (setA.contains(item)) { + array.addObject(item); + } + } else { + array.removeObject(item); + } + return array; + } + }); + }; + + function binarySearch(array, item, low, high) { + var mid, midItem, res, guidMid, guidItem; + + if (arguments.length < 4) { high = get(array, 'length'); } + if (arguments.length < 3) { low = 0; } + + if (low === high) { + return low; + } + + mid = low + Math.floor((high - low) / 2); + midItem = array.objectAt(mid); + + guidMid = _guidFor(midItem); + guidItem = _guidFor(item); + + if (guidMid === guidItem) { + return mid; + } + + res = this.order(midItem, item); + if (res === 0) { + res = guidMid < guidItem ? -1 : 1; + } + + + if (res < 0) { + return this.binarySearch(array, item, mid+1, high); + } else if (res > 0) { + return this.binarySearch(array, item, low, mid); + } + + return mid; + + function _guidFor(item) { + if (SearchProxy.detectInstance(item)) { + return guidFor(get(item, 'content')); + } + return guidFor(item); + } + } + + + var SearchProxy = ObjectProxy.extend(); + + /** + A computed property which returns a new array with all the + properties from the first dependent array sorted based on a property + or sort function. + + The callback method you provide should have the following signature: + + ```javascript + function(itemA, itemB); + ``` + + - `itemA` the first item to compare. + - `itemB` the second item to compare. + + This function should return negative number (e.g. `-1`) when `itemA` should come before + `itemB`. It should return positive number (e.g. `1`) when `itemA` should come after + `itemB`. If the `itemA` and `itemB` are equal this function should return `0`. + + Therefore, if this function is comparing some numeric values, simple `itemA - itemB` or + `itemA.get( 'foo' ) - itemB.get( 'foo' )` can be used instead of series of `if`. + + Example + + ```javascript + var ToDoList = Ember.Object.extend({ + // using standard ascending sort + todosSorting: ['name'], + sortedTodos: Ember.computed.sort('todos', 'todosSorting'), + + // using descending sort + todosSortingDesc: ['name:desc'], + sortedTodosDesc: Ember.computed.sort('todos', 'todosSortingDesc'), + + // using a custom sort function + priorityTodos: Ember.computed.sort('todos', function(a, b){ + if (a.priority > b.priority) { + return 1; + } else if (a.priority < b.priority) { + return -1; + } + return 0; + }), + }); + var todoList = ToDoList.create({todos: [ + {name: 'Unit Test', priority: 2}, + {name: 'Documentation', priority: 3}, + {name: 'Release', priority: 1} + ]}); + + todoList.get('sortedTodos'); // [{name:'Documentation', priority:3}, {name:'Release', priority:1}, {name:'Unit Test', priority:2}] + todoList.get('sortedTodosDesc'); // [{name:'Unit Test', priority:2}, {name:'Release', priority:1}, {name:'Documentation', priority:3}] + todoList.get('priorityTodos'); // [{name:'Release', priority:1}, {name:'Unit Test', priority:2}, {name:'Documentation', priority:3}] + ``` + + @method computed.sort + @for Ember + @param {String} dependentKey + @param {String or Function} sortDefinition a dependent key to an + array of sort properties (add `:desc` to the arrays sort properties to sort descending) or a function to use when sorting + @return {Ember.ComputedProperty} computes a new sorted array based + on the sort property array or callback function + */ + function sort(itemsKey, sortDefinition) { + Ember.assert("Ember.computed.sort requires two arguments: an array key to sort and either a sort properties key or sort function", arguments.length === 2); + + var initFn, sortPropertiesKey; + + if (typeof sortDefinition === 'function') { + initFn = function (array, changeMeta, instanceMeta) { + instanceMeta.order = sortDefinition; + instanceMeta.binarySearch = binarySearch; + }; + } else { + sortPropertiesKey = sortDefinition; + initFn = function (array, changeMeta, instanceMeta) { + function setupSortProperties() { + var sortPropertyDefinitions = get(this, sortPropertiesKey), + sortProperty, + sortProperties = instanceMeta.sortProperties = [], + sortPropertyAscending = instanceMeta.sortPropertyAscending = {}, + idx, + asc; + + Ember.assert("Cannot sort: '" + sortPropertiesKey + "' is not an array.", isArray(sortPropertyDefinitions)); + + changeMeta.property.clearItemPropertyKeys(itemsKey); + + forEach(sortPropertyDefinitions, function (sortPropertyDefinition) { + if ((idx = sortPropertyDefinition.indexOf(':')) !== -1) { + sortProperty = sortPropertyDefinition.substring(0, idx); + asc = sortPropertyDefinition.substring(idx+1).toLowerCase() !== 'desc'; + } else { + sortProperty = sortPropertyDefinition; + asc = true; + } + + sortProperties.push(sortProperty); + sortPropertyAscending[sortProperty] = asc; + changeMeta.property.itemPropertyKey(itemsKey, sortProperty); + }); + + sortPropertyDefinitions.addObserver('@each', this, updateSortPropertiesOnce); + } + + function updateSortPropertiesOnce() { + run.once(this, updateSortProperties, changeMeta.propertyName); + } + + function updateSortProperties(propertyName) { + setupSortProperties.call(this); + changeMeta.property.recomputeOnce.call(this, propertyName); + } + + addObserver(this, sortPropertiesKey, updateSortPropertiesOnce); + + setupSortProperties.call(this); + + + instanceMeta.order = function (itemA, itemB) { + var isProxy = itemB instanceof SearchProxy, + sortProperty, result, asc; + + for (var i = 0; i < this.sortProperties.length; ++i) { + sortProperty = this.sortProperties[i]; + result = compare(get(itemA, sortProperty), isProxy ? itemB[sortProperty] : get(itemB, sortProperty)); + + if (result !== 0) { + asc = this.sortPropertyAscending[sortProperty]; + return asc ? result : (-1 * result); + } + } + + return 0; + }; + + instanceMeta.binarySearch = binarySearch; + }; + } + + return arrayComputed(itemsKey, { + initialize: initFn, + + addedItem: function (array, item, changeMeta, instanceMeta) { + var index = instanceMeta.binarySearch(array, item); + array.insertAt(index, item); + return array; + }, + + removedItem: function (array, item, changeMeta, instanceMeta) { + var proxyProperties, index, searchItem; + + if (changeMeta.previousValues) { + proxyProperties = merge({ content: item }, changeMeta.previousValues); + + searchItem = SearchProxy.create(proxyProperties); + } else { + searchItem = item; + } + + index = instanceMeta.binarySearch(array, searchItem); + array.removeAt(index); + return array; + } + }); + }; + + + __exports__.sum = sum; + __exports__.min = min; + __exports__.max = max; + __exports__.map = map; + __exports__.sort = sort; + __exports__.setDiff = setDiff; + __exports__.mapBy = mapBy; + __exports__.mapProperty = mapProperty; + __exports__.filter = filter; + __exports__.filterBy = filterBy; + __exports__.filterProperty = filterProperty; + __exports__.uniq = uniq; + __exports__.union = union; + __exports__.intersect = intersect; + }); +define("ember-runtime/controllers/array_controller", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/enumerable_utils","ember-runtime/system/array_proxy","ember-runtime/mixins/sortable","ember-runtime/controllers/controller","ember-metal/computed","ember-metal/error","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var Ember = __dependency1__["default"]; + var get = __dependency2__.get; + var set = __dependency3__.set; + var EnumerableUtils = __dependency4__["default"]; + var ArrayProxy = __dependency5__["default"]; + var SortableMixin = __dependency6__["default"]; + var ControllerMixin = __dependency7__.ControllerMixin; + var computed = __dependency8__.computed; + var EmberError = __dependency9__["default"]; + + var forEach = EnumerableUtils.forEach, + replace = EnumerableUtils.replace; + + /** + `Ember.ArrayController` provides a way for you to publish a collection of + objects so that you can easily bind to the collection from a Handlebars + `#each` helper, an `Ember.CollectionView`, or other controllers. + + The advantage of using an `ArrayController` is that you only have to set up + your view bindings once; to change what's displayed, simply swap out the + `content` property on the controller. + + For example, imagine you wanted to display a list of items fetched via an XHR + request. Create an `Ember.ArrayController` and set its `content` property: + + ```javascript + MyApp.listController = Ember.ArrayController.create(); + + $.get('people.json', function(data) { + MyApp.listController.set('content', data); + }); + ``` + + Then, create a view that binds to your new controller: + + ```handlebars + {{#each MyApp.listController}} + {{firstName}} {{lastName}} + {{/each}} + ``` + + Although you are binding to the controller, the behavior of this controller + is to pass through any methods or properties to the underlying array. This + capability comes from `Ember.ArrayProxy`, which this class inherits from. + + Sometimes you want to display computed properties within the body of an + `#each` helper that depend on the underlying items in `content`, but are not + present on those items. To do this, set `itemController` to the name of a + controller (probably an `ObjectController`) that will wrap each individual item. + + For example: + + ```handlebars + {{#each post in controller}} +
  • {{title}} ({{titleLength}} characters)
    • + {{/each}} + ``` + + ```javascript + App.PostsController = Ember.ArrayController.extend({ + itemController: 'post' + }); + + App.PostController = Ember.ObjectController.extend({ + // the `title` property will be proxied to the underlying post. + + titleLength: function() { + return this.get('title').length; + }.property('title') + }); + ``` + + In some cases it is helpful to return a different `itemController` depending + on the particular item. Subclasses can do this by overriding + `lookupItemController`. + + For example: + + ```javascript + App.MyArrayController = Ember.ArrayController.extend({ + lookupItemController: function( object ) { + if (object.get('isSpecial')) { + return "special"; // use App.SpecialController + } else { + return "regular"; // use App.RegularController + } + } + }); + ``` + + The itemController instances will have a `parentController` property set to + the `ArrayController` instance. + + @class ArrayController + @namespace Ember + @extends Ember.ArrayProxy + @uses Ember.SortableMixin + @uses Ember.ControllerMixin + */ + + var ArrayController = ArrayProxy.extend(ControllerMixin, SortableMixin, { + + /** + The controller used to wrap items, if any. + + @property itemController + @type String + @default null + */ + itemController: null, + + /** + Return the name of the controller to wrap items, or `null` if items should + be returned directly. The default implementation simply returns the + `itemController` property, but subclasses can override this method to return + different controllers for different objects. + + For example: + + ```javascript + App.MyArrayController = Ember.ArrayController.extend({ + lookupItemController: function( object ) { + if (object.get('isSpecial')) { + return "special"; // use App.SpecialController + } else { + return "regular"; // use App.RegularController + } + } + }); + ``` + + @method lookupItemController + @param {Object} object + @return {String} + */ + lookupItemController: function(object) { + return get(this, 'itemController'); + }, + + objectAtContent: function(idx) { + var length = get(this, 'length'), + arrangedContent = get(this,'arrangedContent'), + object = arrangedContent && arrangedContent.objectAt(idx); + + if (idx >= 0 && idx < length) { + var controllerClass = this.lookupItemController(object); + if (controllerClass) { + return this.controllerAt(idx, object, controllerClass); + } + } + + // When `controllerClass` is falsy, we have not opted in to using item + // controllers, so return the object directly. + + // When the index is out of range, we want to return the "out of range" + // value, whatever that might be. Rather than make assumptions + // (e.g. guessing `null` or `undefined`) we defer this to `arrangedContent`. + return object; + }, + + arrangedContentDidChange: function() { + this._super(); + this._resetSubControllers(); + }, + + arrayContentDidChange: function(idx, removedCnt, addedCnt) { + var subControllers = get(this, '_subControllers'), + subControllersToRemove = subControllers.slice(idx, idx+removedCnt); + + forEach(subControllersToRemove, function(subController) { + if (subController) { subController.destroy(); } + }); + + replace(subControllers, idx, removedCnt, new Array(addedCnt)); + + // The shadow array of subcontrollers must be updated before we trigger + // observers, otherwise observers will get the wrong subcontainer when + // calling `objectAt` + this._super(idx, removedCnt, addedCnt); + }, + + init: function() { + this._super(); + + this.set('_subControllers', Ember.A()); + }, + + content: computed(function () { + return Ember.A(); + }), + + /** + * Flag to mark as being "virtual". Used to keep this instance + * from participating in the parentController hierarchy. + * + * @private + * @type Boolean + */ + _isVirtual: false, + + controllerAt: function(idx, object, controllerClass) { + var container = get(this, 'container'), + subControllers = get(this, '_subControllers'), + subController = subControllers[idx], + fullName; + + if (subController) { return subController; } + + fullName = "controller:" + controllerClass; + + if (!container.has(fullName)) { + throw new EmberError('Could not resolve itemController: "' + controllerClass + '"'); + } + var parentController; + if (this._isVirtual) { + parentController = get(this, 'parentController'); + } + parentController = parentController || this; + subController = container.lookupFactory(fullName).create({ + target: this, + parentController: parentController, + content: object + }); + + subControllers[idx] = subController; + + return subController; + }, + + _subControllers: null, + + _resetSubControllers: function() { + var subControllers = get(this, '_subControllers'); + if (subControllers) { + forEach(subControllers, function(subController) { + if (subController) { subController.destroy(); } + }); + } + + this.set('_subControllers', Ember.A()); + } + }); + + __exports__["default"] = ArrayController; + }); +define("ember-runtime/controllers/controller", + ["ember-metal/core","ember-metal/property_get","ember-runtime/system/object","ember-metal/mixin","ember-metal/computed","ember-runtime/mixins/action_handler","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.deprecate + var get = __dependency2__.get; + var EmberObject = __dependency3__["default"]; + var Mixin = __dependency4__.Mixin; + var computed = __dependency5__.computed; + var ActionHandler = __dependency6__["default"]; + + /** + @module ember + @submodule ember-runtime + */ + + /** + `Ember.ControllerMixin` provides a standard interface for all classes that + compose Ember's controller layer: `Ember.Controller`, + `Ember.ArrayController`, and `Ember.ObjectController`. + + @class ControllerMixin + @namespace Ember + @uses Ember.ActionHandler + */ + var ControllerMixin = Mixin.create(ActionHandler, { + /* ducktype as a controller */ + isController: true, + + /** + The object to which actions from the view should be sent. + + For example, when a Handlebars template uses the `{{action}}` helper, + it will attempt to send the action to the view's controller's `target`. + + By default, a controller's `target` is set to the router after it is + instantiated by `Ember.Application#initialize`. + + @property target + @default null + */ + target: null, + + container: null, + + parentController: null, + + store: null, + + model: computed.alias('content'), + + deprecatedSendHandles: function(actionName) { + return !!this[actionName]; + }, + + deprecatedSend: function(actionName) { + var args = [].slice.call(arguments, 1); + Ember.assert('' + this + " has the action " + actionName + " but it is not a function", typeof this[actionName] === 'function'); + Ember.deprecate('Action handlers implemented directly on controllers are deprecated in favor of action handlers on an `actions` object ( action: `' + actionName + '` on ' + this + ')', false); + this[actionName].apply(this, args); + return; + } + }); + + /** + @class Controller + @namespace Ember + @extends Ember.Object + @uses Ember.ControllerMixin + */ + var Controller = EmberObject.extend(ControllerMixin); + + __exports__.Controller = Controller; + __exports__.ControllerMixin = ControllerMixin; + }); +define("ember-runtime/controllers/object_controller", + ["ember-runtime/controllers/controller","ember-runtime/system/object_proxy","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var ControllerMixin = __dependency1__.ControllerMixin; + var ObjectProxy = __dependency2__["default"]; + + /** + @module ember + @submodule ember-runtime + */ + + /** + `Ember.ObjectController` is part of Ember's Controller layer. It is intended + to wrap a single object, proxying unhandled attempts to `get` and `set` to the underlying + content object, and to forward unhandled action attempts to its `target`. + + `Ember.ObjectController` derives this functionality from its superclass + `Ember.ObjectProxy` and the `Ember.ControllerMixin` mixin. + + @class ObjectController + @namespace Ember + @extends Ember.ObjectProxy + @uses Ember.ControllerMixin + **/ + var ObjectController = ObjectProxy.extend(ControllerMixin); + __exports__["default"] = ObjectController; + }); +define("ember-runtime/copy", + ["ember-metal/enumerable_utils","ember-metal/utils","ember-runtime/system/object","ember-runtime/mixins/copyable","ember-metal/platform","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + var EnumerableUtils = __dependency1__["default"]; + var typeOf = __dependency2__.typeOf; + var EmberObject = __dependency3__["default"]; + var Copyable = __dependency4__["default"]; + var create = __dependency5__.create; + + var indexOf = EnumerableUtils.indexOf; + + function _copy(obj, deep, seen, copies) { + var ret, loc, key; + + // primitive data types are immutable, just return them. + if ('object' !== typeof obj || obj===null) return obj; + + // avoid cyclical loops + if (deep && (loc=indexOf(seen, obj))>=0) return copies[loc]; + + Ember.assert('Cannot clone an Ember.Object that does not implement Ember.Copyable', !(obj instanceof EmberObject) || (Copyable && Copyable.detect(obj))); + + // IMPORTANT: this specific test will detect a native array only. Any other + // object will need to implement Copyable. + if (typeOf(obj) === 'array') { + ret = obj.slice(); + if (deep) { + loc = ret.length; + while(--loc>=0) ret[loc] = _copy(ret[loc], deep, seen, copies); + } + } else if (Copyable && Copyable.detect(obj)) { + ret = obj.copy(deep, seen, copies); + } else if (obj instanceof Date) { + ret = new Date(obj.getTime()); + } else { + ret = {}; + for(key in obj) { + if (!obj.hasOwnProperty(key)) continue; + + // Prevents browsers that don't respect non-enumerability from + // copying internal Ember properties + if (key.substring(0,2) === '__') continue; + + ret[key] = deep ? _copy(obj[key], deep, seen, copies) : obj[key]; + } + } + + if (deep) { + seen.push(obj); + copies.push(ret); + } + + return ret; + } + + /** + Creates a clone of the passed object. This function can take just about + any type of object and create a clone of it, including primitive values + (which are not actually cloned because they are immutable). + + If the passed object implements the `clone()` method, then this function + will simply call that method and return the result. + + @method copy + @for Ember + @param {Object} obj The object to clone + @param {Boolean} deep If true, a deep copy of the object is made + @return {Object} The cloned object + */ + function copy(obj, deep) { + // fast paths + if ('object' !== typeof obj || obj===null) return obj; // can't copy primitives + if (Copyable && Copyable.detect(obj)) return obj.copy(deep); + return _copy(obj, deep, deep ? [] : null, deep ? [] : null); + }; + + __exports__["default"] = copy; + }); +define("ember-runtime/core", + ["exports"], + function(__exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + /** + Compares two objects, returning true if they are logically equal. This is + a deeper comparison than a simple triple equal. For sets it will compare the + internal objects. For any other object that implements `isEqual()` it will + respect that method. + + ```javascript + Ember.isEqual('hello', 'hello'); // true + Ember.isEqual(1, 2); // false + Ember.isEqual([4,2], [4,2]); // false + ``` + + @method isEqual + @for Ember + @param {Object} a first object to compare + @param {Object} b second object to compare + @return {Boolean} + */ + function isEqual(a, b) { + if (a && 'function'===typeof a.isEqual) return a.isEqual(b); + if (a instanceof Date && b instanceof Date) { + return a.getTime() === b.getTime(); + } + return a === b; + }; + + __exports__.isEqual = isEqual; + }); +define("ember-runtime/ext/function", + ["ember-metal/core","ember-metal/expand_properties","ember-metal/computed"], + function(__dependency1__, __dependency2__, __dependency3__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var Ember = __dependency1__["default"]; + // Ember.EXTEND_PROTOTYPES, Ember.assert + var expandProperties = __dependency2__["default"]; + var computed = __dependency3__.computed; + + var a_slice = Array.prototype.slice; + var FunctionPrototype = Function.prototype; + + if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.Function) { + + /** + The `property` extension of Javascript's Function prototype is available + when `Ember.EXTEND_PROTOTYPES` or `Ember.EXTEND_PROTOTYPES.Function` is + `true`, which is the default. + + Computed properties allow you to treat a function like a property: + + ```javascript + MyApp.President = Ember.Object.extend({ + firstName: '', + lastName: '', + + fullName: function() { + return this.get('firstName') + ' ' + this.get('lastName'); + + // Call this flag to mark the function as a property + }.property() + }); + + var president = MyApp.President.create({ + firstName: "Barack", + lastName: "Obama" + }); + + president.get('fullName'); // "Barack Obama" + ``` + + Treating a function like a property is useful because they can work with + bindings, just like any other property. + + Many computed properties have dependencies on other properties. For + example, in the above example, the `fullName` property depends on + `firstName` and `lastName` to determine its value. You can tell Ember + about these dependencies like this: + + ```javascript + MyApp.President = Ember.Object.extend({ + firstName: '', + lastName: '', + + fullName: function() { + return this.get('firstName') + ' ' + this.get('lastName'); + + // Tell Ember.js that this computed property depends on firstName + // and lastName + }.property('firstName', 'lastName') + }); + ``` + + Make sure you list these dependencies so Ember knows when to update + bindings that connect to a computed property. Changing a dependency + will not immediately trigger an update of the computed property, but + will instead clear the cache so that it is updated when the next `get` + is called on the property. + + See [Ember.ComputedProperty](/api/classes/Ember.ComputedProperty.html), [Ember.computed](/api/#method_computed). + + @method property + @for Function + */ + FunctionPrototype.property = function() { + var ret = computed(this); + // ComputedProperty.prototype.property expands properties; no need for us to + // do so here. + return ret.property.apply(ret, arguments); + }; + + /** + The `observes` extension of Javascript's Function prototype is available + when `Ember.EXTEND_PROTOTYPES` or `Ember.EXTEND_PROTOTYPES.Function` is + true, which is the default. + + You can observe property changes simply by adding the `observes` + call to the end of your method declarations in classes that you write. + For example: + + ```javascript + Ember.Object.extend({ + valueObserver: function() { + // Executes whenever the "value" property changes + }.observes('value') + }); + ``` + + In the future this method may become asynchronous. If you want to ensure + synchronous behavior, use `observesImmediately`. + + See `Ember.observer`. + + @method observes + @for Function + */ + FunctionPrototype.observes = function() { + var addWatchedProperty = function (obs) { watched.push(obs); }; + var watched = []; + + for (var i=0; i= 0) return; + if (typeof obj.hasOwnProperty === 'function' && !obj.hasOwnProperty(key)) return; + + array.push(key); + }; + + keys = function keys(obj) { + var ret = [], key; + for (key in obj) { + pushPropertyName(obj, ret, key); + } + + // IE8 doesn't enumerate property that named the same as prototype properties. + for (var i = 0, l = prototypeProperties.length; i < l; i++) { + key = prototypeProperties[i]; + + pushPropertyName(obj, ret, key); + } + + return ret; + }; + } + + __exports__["default"] = keys; + }); +define("ember-runtime", + ["ember-metal","ember-runtime/core","ember-runtime/keys","ember-runtime/compare","ember-runtime/copy","ember-runtime/system/namespace","ember-runtime/system/object","ember-runtime/system/tracked_array","ember-runtime/system/subarray","ember-runtime/system/container","ember-runtime/system/application","ember-runtime/system/array_proxy","ember-runtime/system/object_proxy","ember-runtime/system/core_object","ember-runtime/system/each_proxy","ember-runtime/system/native_array","ember-runtime/system/set","ember-runtime/system/string","ember-runtime/system/deferred","ember-runtime/system/lazy_load","ember-runtime/mixins/array","ember-runtime/mixins/comparable","ember-runtime/mixins/copyable","ember-runtime/mixins/enumerable","ember-runtime/mixins/freezable","ember-runtime/mixins/observable","ember-runtime/mixins/action_handler","ember-runtime/mixins/deferred","ember-runtime/mixins/mutable_enumerable","ember-runtime/mixins/mutable_array","ember-runtime/mixins/target_action_support","ember-runtime/mixins/evented","ember-runtime/mixins/promise_proxy","ember-runtime/mixins/sortable","ember-runtime/computed/array_computed","ember-runtime/computed/reduce_computed","ember-runtime/computed/reduce_computed_macros","ember-runtime/controllers/array_controller","ember-runtime/controllers/object_controller","ember-runtime/controllers/controller","ember-runtime/ext/rsvp","ember-runtime/ext/string","ember-runtime/ext/function","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __dependency16__, __dependency17__, __dependency18__, __dependency19__, __dependency20__, __dependency21__, __dependency22__, __dependency23__, __dependency24__, __dependency25__, __dependency26__, __dependency27__, __dependency28__, __dependency29__, __dependency30__, __dependency31__, __dependency32__, __dependency33__, __dependency34__, __dependency35__, __dependency36__, __dependency37__, __dependency38__, __dependency39__, __dependency40__, __dependency41__, __dependency42__, __dependency43__, __exports__) { + "use strict"; + /** + Ember Runtime + + @module ember + @submodule ember-runtime + @requires ember-metal + */ + + + // BEGIN EXPORTS + Ember.compare = __dependency4__["default"]; + Ember.copy = __dependency5__["default"]; + Ember.isEqual = __dependency2__.isEqual; + Ember.keys = __dependency3__["default"]; + + Ember.Array = __dependency21__["default"]; + + Ember.Comparable = __dependency22__["default"]; + Ember.Copyable = __dependency23__["default"]; + + Ember.SortableMixin = __dependency34__["default"]; + + Ember.Freezable = __dependency25__.Freezable; + Ember.FROZEN_ERROR = __dependency25__.FROZEN_ERROR; + + Ember.DeferredMixin = __dependency28__["default"]; + + Ember.MutableEnumerable = __dependency29__["default"]; + Ember.MutableArray = __dependency30__["default"]; + + Ember.TargetActionSupport = __dependency31__["default"]; + Ember.Evented = __dependency32__["default"]; + + Ember.PromiseProxyMixin = __dependency33__["default"]; + + Ember.Observable = __dependency26__["default"]; + + Ember.arrayComputed = __dependency35__.arrayComputed; + Ember.ArrayComputedProperty = __dependency35__.ArrayComputedProperty; + Ember.reduceComputed = __dependency36__.reduceComputed; + Ember.ReduceComputedProperty = __dependency36__.ReduceComputedProperty; + + // ES6TODO: this seems a less than ideal way/place to add properties to Ember.computed + var EmComputed = Ember.computed; + + EmComputed.sum = __dependency37__.sum; + EmComputed.min = __dependency37__.min; + EmComputed.max = __dependency37__.max; + EmComputed.map = __dependency37__.map; + EmComputed.sort = __dependency37__.sort; + EmComputed.setDiff = __dependency37__.setDiff; + EmComputed.mapBy = __dependency37__.mapBy; + EmComputed.mapProperty = __dependency37__.mapProperty; + EmComputed.filter = __dependency37__.filter; + EmComputed.filterBy = __dependency37__.filterBy; + EmComputed.filterProperty = __dependency37__.filterProperty; + EmComputed.uniq = __dependency37__.uniq; + EmComputed.union = __dependency37__.union; + EmComputed.intersect = __dependency37__.intersect; + + Ember.String = __dependency18__["default"]; + Ember.Object = __dependency7__["default"]; + Ember.TrackedArray = __dependency8__["default"]; + Ember.SubArray = __dependency9__["default"]; + Ember.Container = __dependency10__["default"]; + Ember.Namespace = __dependency6__["default"]; + Ember.Application = __dependency11__["default"]; + Ember.Enumerable = __dependency24__["default"]; + Ember.ArrayProxy = __dependency12__["default"]; + Ember.ObjectProxy = __dependency13__["default"]; + Ember.ActionHandler = __dependency27__["default"]; + Ember.CoreObject = __dependency14__["default"]; + Ember.EachArray = __dependency15__.EachArray; + Ember.EachProxy = __dependency15__.EachProxy; + Ember.NativeArray = __dependency16__["default"]; + // ES6TODO: Currently we must rely on the global from ember-metal/core to avoid circular deps + // Ember.A = A; + Ember.Set = __dependency17__["default"]; + Ember.Deferred = __dependency19__["default"]; + Ember.onLoad = __dependency20__.onLoad; + Ember.runLoadHooks = __dependency20__.runLoadHooks; + + Ember.ArrayController = __dependency38__["default"]; + Ember.ObjectController = __dependency39__["default"]; + Ember.Controller = __dependency40__.Controller; + Ember.ControllerMixin = __dependency40__.ControllerMixin; + + Ember.RSVP = __dependency41__["default"]; + // END EXPORTS + + __exports__["default"] = Ember; + }); +define("ember-runtime/mixins/action_handler", + ["ember-metal/merge","ember-metal/mixin","ember-metal/property_get","ember-metal/utils","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + var merge = __dependency1__["default"]; + var Mixin = __dependency2__.Mixin; + var get = __dependency3__.get; + var typeOf = __dependency4__.typeOf; + + /** + The `Ember.ActionHandler` mixin implements support for moving an `actions` + property to an `_actions` property at extend time, and adding `_actions` + to the object's mergedProperties list. + + `Ember.ActionHandler` is available on some familiar classes including + `Ember.Route`, `Ember.View`, `Ember.Component`, and controllers such as + `Ember.Controller` and `Ember.ObjectController`. + (Internally the mixin is used by `Ember.CoreView`, `Ember.ControllerMixin`, + and `Ember.Route` and available to the above classes through + inheritance.) + + @class ActionHandler + @namespace Ember + */ + var ActionHandler = Mixin.create({ + mergedProperties: ['_actions'], + + /** + The collection of functions, keyed by name, available on this + `ActionHandler` as action targets. + + These functions will be invoked when a matching `{{action}}` is triggered + from within a template and the application's current route is this route. + + Actions can also be invoked from other parts of your application + via `ActionHandler#send`. + + The `actions` hash will inherit action handlers from + the `actions` hash defined on extended parent classes + or mixins rather than just replace the entire hash, e.g.: + + ```js + App.CanDisplayBanner = Ember.Mixin.create({ + actions: { + displayBanner: function(msg) { + // ... + } + } + }); + + App.WelcomeRoute = Ember.Route.extend(App.CanDisplayBanner, { + actions: { + playMusic: function() { + // ... + } + } + }); + + // `WelcomeRoute`, when active, will be able to respond + // to both actions, since the actions hash is merged rather + // then replaced when extending mixins / parent classes. + this.send('displayBanner'); + this.send('playMusic'); + ``` + + Within a Controller, Route, View or Component's action handler, + the value of the `this` context is the Controller, Route, View or + Component object: + + ```js + App.SongRoute = Ember.Route.extend({ + actions: { + myAction: function() { + this.controllerFor("song"); + this.transitionTo("other.route"); + ... + } + } + }); + ``` + + It is also possible to call `this._super()` from within an + action handler if it overrides a handler defined on a parent + class or mixin: + + Take for example the following routes: + + ```js + App.DebugRoute = Ember.Mixin.create({ + actions: { + debugRouteInformation: function() { + console.debug("trololo"); + } + } + }); + + App.AnnoyingDebugRoute = Ember.Route.extend(App.DebugRoute, { + actions: { + debugRouteInformation: function() { + // also call the debugRouteInformation of mixed in App.DebugRoute + this._super(); + + // show additional annoyance + window.alert(...); + } + } + }); + ``` + + ## Bubbling + + By default, an action will stop bubbling once a handler defined + on the `actions` hash handles it. To continue bubbling the action, + you must return `true` from the handler: + + ```js + App.Router.map(function() { + this.resource("album", function() { + this.route("song"); + }); + }); + + App.AlbumRoute = Ember.Route.extend({ + actions: { + startPlaying: function() { + } + } + }); + + App.AlbumSongRoute = Ember.Route.extend({ + actions: { + startPlaying: function() { + // ... + + if (actionShouldAlsoBeTriggeredOnParentRoute) { + return true; + } + } + } + }); + ``` + + @property actions + @type Hash + @default null + */ + + /** + Moves `actions` to `_actions` at extend time. Note that this currently + modifies the mixin themselves, which is technically dubious but + is practically of little consequence. This may change in the future. + + @private + @method willMergeMixin + */ + willMergeMixin: function(props) { + var hashName; + + if (!props._actions) { + Ember.assert("'actions' should not be a function", typeof(props.actions) !== 'function'); + + if (typeOf(props.actions) === 'object') { + hashName = 'actions'; + } else if (typeOf(props.events) === 'object') { + Ember.deprecate('Action handlers contained in an `events` object are deprecated in favor of putting them in an `actions` object', false); + hashName = 'events'; + } + + if (hashName) { + props._actions = merge(props._actions || {}, props[hashName]); + } + + delete props[hashName]; + } + }, + + /** + Triggers a named action on the `ActionHandler`. Any parameters + supplied after the `actionName` string will be passed as arguments + to the action target function. + + If the `ActionHandler` has its `target` property set, actions may + bubble to the `target`. Bubbling happens when an `actionName` can + not be found in the `ActionHandler`'s `actions` hash or if the + action target function returns `true`. + + Example + + ```js + App.WelcomeRoute = Ember.Route.extend({ + actions: { + playTheme: function() { + this.send('playMusic', 'theme.mp3'); + }, + playMusic: function(track) { + // ... + } + } + }); + ``` + + @method send + @param {String} actionName The action to trigger + @param {*} context a context to send with the action + */ + send: function(actionName) { + var args = [].slice.call(arguments, 1), target; + + if (this._actions && this._actions[actionName]) { + if (this._actions[actionName].apply(this, args) === true) { + // handler returned true, so this action will bubble + } else { + return; + } + } else if (!Ember.FEATURES.isEnabled('ember-routing-drop-deprecated-action-style') && this.deprecatedSend && this.deprecatedSendHandles && this.deprecatedSendHandles(actionName)) { + Ember.warn("The current default is deprecated but will prefer to handle actions directly on the controller instead of a similarly named action in the actions hash. To turn off this deprecated feature set: Ember.FEATURES['ember-routing-drop-deprecated-action-style'] = true"); + if (this.deprecatedSend.apply(this, [].slice.call(arguments)) === true) { + // handler return true, so this action will bubble + } else { + return; + } + } + + if (target = get(this, 'target')) { + Ember.assert("The `target` for " + this + " (" + target + ") does not have a `send` method", typeof target.send === 'function'); + target.send.apply(target, arguments); + } + } + }); + + __exports__["default"] = ActionHandler; + }); +define("ember-runtime/mixins/array", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/computed","ember-metal/is_none","ember-runtime/mixins/enumerable","ember-metal/enumerable_utils","ember-metal/mixin","ember-metal/property_events","ember-metal/events","ember-metal/watching","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + // .......................................................... + // HELPERS + // + var Ember = __dependency1__["default"]; + // ES6TODO: Ember.A + + var get = __dependency2__.get; + var set = __dependency3__.set; + var computed = __dependency4__.computed; + var cacheFor = __dependency4__.cacheFor; + var isNone = __dependency5__.isNone; + var none = __dependency5__.none; + var Enumerable = __dependency6__["default"]; + var EnumerableUtils = __dependency7__["default"]; + var Mixin = __dependency8__.Mixin; + var required = __dependency8__.required; + var propertyWillChange = __dependency9__.propertyWillChange; + var propertyDidChange = __dependency9__.propertyDidChange; + var addListener = __dependency10__.addListener; + var removeListener = __dependency10__.removeListener; + var sendEvent = __dependency10__.sendEvent; + var hasListeners = __dependency10__.hasListeners; + var isWatching = __dependency11__.isWatching; + + var map = EnumerableUtils.map; + + // .......................................................... + // ARRAY + // + /** + This mixin implements Observer-friendly Array-like behavior. It is not a + concrete implementation, but it can be used up by other classes that want + to appear like arrays. + + For example, ArrayProxy and ArrayController are both concrete classes that can + be instantiated to implement array-like behavior. Both of these classes use + the Array Mixin by way of the MutableArray mixin, which allows observable + changes to be made to the underlying array. + + Unlike `Ember.Enumerable,` this mixin defines methods specifically for + collections that provide index-ordered access to their contents. When you + are designing code that needs to accept any kind of Array-like object, you + should use these methods instead of Array primitives because these will + properly notify observers of changes to the array. + + Although these methods are efficient, they do add a layer of indirection to + your application so it is a good idea to use them only when you need the + flexibility of using both true JavaScript arrays and "virtual" arrays such + as controllers and collections. + + You can use the methods defined in this module to access and modify array + contents in a KVO-friendly way. You can also be notified whenever the + membership of an array changes by using `.observes('myArray.[]')`. + + To support `Ember.Array` in your own class, you must override two + primitives to use it: `replace()` and `objectAt()`. + + Note that the Ember.Array mixin also incorporates the `Ember.Enumerable` + mixin. All `Ember.Array`-like objects are also enumerable. + + @class Array + @namespace Ember + @uses Ember.Enumerable + @since Ember 0.9.0 + */ + var EmberArray = Mixin.create(Enumerable, { + + /** + Your array must support the `length` property. Your replace methods should + set this property whenever it changes. + + @property {Number} length + */ + length: required(), + + /** + Returns the object at the given `index`. If the given `index` is negative + or is greater or equal than the array length, returns `undefined`. + + This is one of the primitives you must implement to support `Ember.Array`. + If your object supports retrieving the value of an array item using `get()` + (i.e. `myArray.get(0)`), then you do not need to implement this method + yourself. + + ```javascript + var arr = ['a', 'b', 'c', 'd']; + arr.objectAt(0); // "a" + arr.objectAt(3); // "d" + arr.objectAt(-1); // undefined + arr.objectAt(4); // undefined + arr.objectAt(5); // undefined + ``` + + @method objectAt + @param {Number} idx The index of the item to return. + @return {*} item at index or undefined + */ + objectAt: function(idx) { + if ((idx < 0) || (idx>=get(this, 'length'))) return undefined ; + return get(this, idx); + }, + + /** + This returns the objects at the specified indexes, using `objectAt`. + + ```javascript + var arr = ['a', 'b', 'c', 'd']; + arr.objectsAt([0, 1, 2]); // ["a", "b", "c"] + arr.objectsAt([2, 3, 4]); // ["c", "d", undefined] + ``` + + @method objectsAt + @param {Array} indexes An array of indexes of items to return. + @return {Array} + */ + objectsAt: function(indexes) { + var self = this; + return map(indexes, function(idx) { return self.objectAt(idx); }); + }, + + // overrides Ember.Enumerable version + nextObject: function(idx) { + return this.objectAt(idx); + }, + + /** + This is the handler for the special array content property. If you get + this property, it will return this. If you set this property it a new + array, it will replace the current content. + + This property overrides the default property defined in `Ember.Enumerable`. + + @property [] + @return this + */ + '[]': computed(function(key, value) { + if (value !== undefined) this.replace(0, get(this, 'length'), value) ; + return this ; + }), + + firstObject: computed(function() { + return this.objectAt(0); + }), + + lastObject: computed(function() { + return this.objectAt(get(this, 'length')-1); + }), + + // optimized version from Enumerable + contains: function(obj) { + return this.indexOf(obj) >= 0; + }, + + // Add any extra methods to Ember.Array that are native to the built-in Array. + /** + Returns a new array that is a slice of the receiver. This implementation + uses the observable array methods to retrieve the objects for the new + slice. + + ```javascript + var arr = ['red', 'green', 'blue']; + arr.slice(0); // ['red', 'green', 'blue'] + arr.slice(0, 2); // ['red', 'green'] + arr.slice(1, 100); // ['green', 'blue'] + ``` + + @method slice + @param {Integer} beginIndex (Optional) index to begin slicing from. + @param {Integer} endIndex (Optional) index to end the slice at (but not included). + @return {Array} New array with specified slice + */ + slice: function(beginIndex, endIndex) { + var ret = Ember.A(); + var length = get(this, 'length') ; + if (isNone(beginIndex)) beginIndex = 0 ; + if (isNone(endIndex) || (endIndex > length)) endIndex = length ; + + if (beginIndex < 0) beginIndex = length + beginIndex; + if (endIndex < 0) endIndex = length + endIndex; + + while(beginIndex < endIndex) { + ret[ret.length] = this.objectAt(beginIndex++) ; + } + return ret ; + }, + + /** + Returns the index of the given object's first occurrence. + If no `startAt` argument is given, the starting location to + search is 0. If it's negative, will count backward from + the end of the array. Returns -1 if no match is found. + + ```javascript + var arr = ["a", "b", "c", "d", "a"]; + arr.indexOf("a"); // 0 + arr.indexOf("z"); // -1 + arr.indexOf("a", 2); // 4 + arr.indexOf("a", -1); // 4 + arr.indexOf("b", 3); // -1 + arr.indexOf("a", 100); // -1 + ``` + + @method indexOf + @param {Object} object the item to search for + @param {Number} startAt optional starting location to search, default 0 + @return {Number} index or -1 if not found + */ + indexOf: function(object, startAt) { + var idx, len = get(this, 'length'); + + if (startAt === undefined) startAt = 0; + if (startAt < 0) startAt += len; + + for(idx=startAt;idx= len) startAt = len-1; + if (startAt < 0) startAt += len; + + for(idx=startAt;idx>=0;idx--) { + if (this.objectAt(idx) === object) return idx ; + } + return -1; + }, + + // .......................................................... + // ARRAY OBSERVERS + // + + /** + Adds an array observer to the receiving array. The array observer object + normally must implement two methods: + + * `arrayWillChange(observedObj, start, removeCount, addCount)` - This method will be + called just before the array is modified. + * `arrayDidChange(observedObj, start, removeCount, addCount)` - This method will be + called just after the array is modified. + + Both callbacks will be passed the observed object, starting index of the + change as well a a count of the items to be removed and added. You can use + these callbacks to optionally inspect the array during the change, clear + caches, or do any other bookkeeping necessary. + + In addition to passing a target, you can also include an options hash + which you can use to override the method names that will be invoked on the + target. + + @method addArrayObserver + @param {Object} target The observer object. + @param {Hash} opts Optional hash of configuration options including + `willChange` and `didChange` option. + @return {Ember.Array} receiver + */ + addArrayObserver: function(target, opts) { + var willChange = (opts && opts.willChange) || 'arrayWillChange', + didChange = (opts && opts.didChange) || 'arrayDidChange'; + + var hasObservers = get(this, 'hasArrayObservers'); + if (!hasObservers) propertyWillChange(this, 'hasArrayObservers'); + addListener(this, '@array:before', target, willChange); + addListener(this, '@array:change', target, didChange); + if (!hasObservers) propertyDidChange(this, 'hasArrayObservers'); + return this; + }, + + /** + Removes an array observer from the object if the observer is current + registered. Calling this method multiple times with the same object will + have no effect. + + @method removeArrayObserver + @param {Object} target The object observing the array. + @param {Hash} opts Optional hash of configuration options including + `willChange` and `didChange` option. + @return {Ember.Array} receiver + */ + removeArrayObserver: function(target, opts) { + var willChange = (opts && opts.willChange) || 'arrayWillChange', + didChange = (opts && opts.didChange) || 'arrayDidChange'; + + var hasObservers = get(this, 'hasArrayObservers'); + if (hasObservers) propertyWillChange(this, 'hasArrayObservers'); + removeListener(this, '@array:before', target, willChange); + removeListener(this, '@array:change', target, didChange); + if (hasObservers) propertyDidChange(this, 'hasArrayObservers'); + return this; + }, + + /** + Becomes true whenever the array currently has observers watching changes + on the array. + + @property {Boolean} hasArrayObservers + */ + hasArrayObservers: computed(function() { + return hasListeners(this, '@array:change') || hasListeners(this, '@array:before'); + }), + + /** + If you are implementing an object that supports `Ember.Array`, call this + method just before the array content changes to notify any observers and + invalidate any related properties. Pass the starting index of the change + as well as a delta of the amounts to change. + + @method arrayContentWillChange + @param {Number} startIdx The starting index in the array that will change. + @param {Number} removeAmt The number of items that will be removed. If you + pass `null` assumes 0 + @param {Number} addAmt The number of items that will be added. If you + pass `null` assumes 0. + @return {Ember.Array} receiver + */ + arrayContentWillChange: function(startIdx, removeAmt, addAmt) { + + // if no args are passed assume everything changes + if (startIdx===undefined) { + startIdx = 0; + removeAmt = addAmt = -1; + } else { + if (removeAmt === undefined) removeAmt=-1; + if (addAmt === undefined) addAmt=-1; + } + + // Make sure the @each proxy is set up if anyone is observing @each + if (isWatching(this, '@each')) { get(this, '@each'); } + + sendEvent(this, '@array:before', [this, startIdx, removeAmt, addAmt]); + + var removing, lim; + if (startIdx>=0 && removeAmt>=0 && get(this, 'hasEnumerableObservers')) { + removing = []; + lim = startIdx+removeAmt; + for(var idx=startIdx;idx=0 && addAmt>=0 && get(this, 'hasEnumerableObservers')) { + adding = []; + lim = startIdx+addAmt; + for(var idx=startIdx;idx b` + + Default implementation raises an exception. + + @method compare + @param a {Object} the first object to compare + @param b {Object} the second object to compare + @return {Integer} the result of the comparison + */ + compare: required(Function) + + }); + + __exports__["default"] = Comparable; + }); +define("ember-runtime/mixins/copyable", + ["ember-metal/property_get","ember-metal/property_set","ember-metal/mixin","ember-runtime/mixins/freezable","ember-runtime/system/string","ember-metal/error","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + + var get = __dependency1__.get; + var set = __dependency2__.set; + var required = __dependency3__.required; + var Freezable = __dependency4__.Freezable; + var Mixin = __dependency3__.Mixin; + var fmt = __dependency5__.fmt; + var EmberError = __dependency6__["default"]; + + + /** + Implements some standard methods for copying an object. Add this mixin to + any object you create that can create a copy of itself. This mixin is + added automatically to the built-in array. + + You should generally implement the `copy()` method to return a copy of the + receiver. + + Note that `frozenCopy()` will only work if you also implement + `Ember.Freezable`. + + @class Copyable + @namespace Ember + @since Ember 0.9 + */ + var Copyable = Mixin.create({ + + /** + Override to return a copy of the receiver. Default implementation raises + an exception. + + @method copy + @param {Boolean} deep if `true`, a deep copy of the object should be made + @return {Object} copy of receiver + */ + copy: required(Function), + + /** + If the object implements `Ember.Freezable`, then this will return a new + copy if the object is not frozen and the receiver if the object is frozen. + + Raises an exception if you try to call this method on a object that does + not support freezing. + + You should use this method whenever you want a copy of a freezable object + since a freezable object can simply return itself without actually + consuming more memory. + + @method frozenCopy + @return {Object} copy of receiver or receiver + */ + frozenCopy: function() { + if (Freezable && Freezable.detect(this)) { + return get(this, 'isFrozen') ? this : this.copy().freeze(); + } else { + throw new EmberError(fmt("%@ does not support freezing", [this])); + } + } + }); + + __exports__["default"] = Copyable; + }); +define("ember-runtime/mixins/deferred", + ["ember-metal/core","ember-metal/property_get","ember-metal/mixin","ember-metal/computed","ember-metal/run_loop","ember-runtime/ext/rsvp","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.FEATURES, Ember.Test + var get = __dependency2__.get; + var Mixin = __dependency3__.Mixin; + var computed = __dependency4__.computed; + var run = __dependency5__["default"]; + var RSVP = __dependency6__["default"]; + + if (Ember.FEATURES['ember-runtime-test-friendly-promises']) { + + var asyncStart = function() { + if (Ember.Test && Ember.Test.adapter) { + Ember.Test.adapter.asyncStart(); + } + }; + + var asyncEnd = function() { + if (Ember.Test && Ember.Test.adapter) { + Ember.Test.adapter.asyncEnd(); + } + }; + + RSVP.configure('async', function(callback, promise) { + var async = !run.currentRunLoop; + + if (Ember.testing && async) { asyncStart(); } + + run.backburner.schedule('actions', function(){ + if (Ember.testing && async) { asyncEnd(); } + callback(promise); + }); + }); + } else { + RSVP.configure('async', function(callback, promise) { + run.backburner.schedule('actions', function(){ + callback(promise); + }); + }); + } + + RSVP.Promise.prototype.fail = function(callback, label){ + Ember.deprecate('RSVP.Promise.fail has been renamed as RSVP.Promise.catch'); + return this['catch'](callback, label); + }; + + /** + @module ember + @submodule ember-runtime + */ + + + /** + @class Deferred + @namespace Ember + */ + var DeferredMixin = Mixin.create({ + /** + Add handlers to be called when the Deferred object is resolved or rejected. + + @method then + @param {Function} resolve a callback function to be called when done + @param {Function} reject a callback function to be called when failed + */ + then: function(resolve, reject, label) { + var deferred, promise, entity; + + entity = this; + deferred = get(this, '_deferred'); + promise = deferred.promise; + + function fulfillmentHandler(fulfillment) { + if (fulfillment === promise) { + return resolve(entity); + } else { + return resolve(fulfillment); + } + } + + return promise.then(resolve && fulfillmentHandler, reject, label); + }, + + /** + Resolve a Deferred object and call any `doneCallbacks` with the given args. + + @method resolve + */ + resolve: function(value) { + var deferred, promise; + + deferred = get(this, '_deferred'); + promise = deferred.promise; + + if (value === this) { + deferred.resolve(promise); + } else { + deferred.resolve(value); + } + }, + + /** + Reject a Deferred object and call any `failCallbacks` with the given args. + + @method reject + */ + reject: function(value) { + get(this, '_deferred').reject(value); + }, + + _deferred: computed(function() { + return RSVP.defer('Ember: DeferredMixin - ' + this); + }) + }); + + __exports__["default"] = DeferredMixin; + }); +define("ember-runtime/mixins/enumerable", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/mixin","ember-metal/enumerable_utils","ember-metal/computed","ember-metal/property_events","ember-metal/events","ember-runtime/compare","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + // .......................................................... + // HELPERS + // + + var Ember = __dependency1__["default"]; + var get = __dependency2__.get; + var set = __dependency3__.set; + var apply = __dependency4__.apply; + var Mixin = __dependency5__.Mixin; + var required = __dependency5__.required; + var aliasMethod = __dependency5__.aliasMethod; + var EnumerableUtils = __dependency6__["default"]; + var computed = __dependency7__.computed; + var propertyWillChange = __dependency8__.propertyWillChange; + var propertyDidChange = __dependency8__.propertyDidChange; + var addListener = __dependency9__.addListener; + var removeListener = __dependency9__.removeListener; + var sendEvent = __dependency9__.sendEvent; + var hasListeners = __dependency9__.hasListeners; + var compare = __dependency10__["default"]; + + var a_slice = Array.prototype.slice; + var a_indexOf = EnumerableUtils.indexOf; + + var contexts = []; + + function popCtx() { + return contexts.length===0 ? {} : contexts.pop(); + } + + function pushCtx(ctx) { + contexts.push(ctx); + return null; + } + + function iter(key, value) { + var valueProvided = arguments.length === 2; + + function i(item) { + var cur = get(item, key); + return valueProvided ? value===cur : !!cur; + } + return i ; + } + + /** + This mixin defines the common interface implemented by enumerable objects + in Ember. Most of these methods follow the standard Array iteration + API defined up to JavaScript 1.8 (excluding language-specific features that + cannot be emulated in older versions of JavaScript). + + This mixin is applied automatically to the Array class on page load, so you + can use any of these methods on simple arrays. If Array already implements + one of these methods, the mixin will not override them. + + ## Writing Your Own Enumerable + + To make your own custom class enumerable, you need two items: + + 1. You must have a length property. This property should change whenever + the number of items in your enumerable object changes. If you use this + with an `Ember.Object` subclass, you should be sure to change the length + property using `set().` + + 2. You must implement `nextObject().` See documentation. + + Once you have these two methods implemented, apply the `Ember.Enumerable` mixin + to your class and you will be able to enumerate the contents of your object + like any other collection. + + ## Using Ember Enumeration with Other Libraries + + Many other libraries provide some kind of iterator or enumeration like + facility. This is often where the most common API conflicts occur. + Ember's API is designed to be as friendly as possible with other + libraries by implementing only methods that mostly correspond to the + JavaScript 1.8 API. + + @class Enumerable + @namespace Ember + @since Ember 0.9 + */ + var Enumerable = Mixin.create({ + + /** + Implement this method to make your class enumerable. + + This method will be call repeatedly during enumeration. The index value + will always begin with 0 and increment monotonically. You don't have to + rely on the index value to determine what object to return, but you should + always check the value and start from the beginning when you see the + requested index is 0. + + The `previousObject` is the object that was returned from the last call + to `nextObject` for the current iteration. This is a useful way to + manage iteration if you are tracing a linked list, for example. + + Finally the context parameter will always contain a hash you can use as + a "scratchpad" to maintain any other state you need in order to iterate + properly. The context object is reused and is not reset between + iterations so make sure you setup the context with a fresh state whenever + the index parameter is 0. + + Generally iterators will continue to call `nextObject` until the index + reaches the your current length-1. If you run out of data before this + time for some reason, you should simply return undefined. + + The default implementation of this method simply looks up the index. + This works great on any Array-like objects. + + @method nextObject + @param {Number} index the current index of the iteration + @param {Object} previousObject the value returned by the last call to + `nextObject`. + @param {Object} context a context object you can use to maintain state. + @return {Object} the next object in the iteration or undefined + */ + nextObject: required(Function), + + /** + Helper method returns the first object from a collection. This is usually + used by bindings and other parts of the framework to extract a single + object if the enumerable contains only one item. + + If you override this method, you should implement it so that it will + always return the same value each time it is called. If your enumerable + contains only one object, this method should always return that object. + If your enumerable is empty, this method should return `undefined`. + + ```javascript + var arr = ["a", "b", "c"]; + arr.get('firstObject'); // "a" + + var arr = []; + arr.get('firstObject'); // undefined + ``` + + @property firstObject + @return {Object} the object or undefined + */ + firstObject: computed(function() { + if (get(this, 'length')===0) return undefined ; + + // handle generic enumerables + var context = popCtx(), ret; + ret = this.nextObject(0, null, context); + pushCtx(context); + return ret ; + }).property('[]'), + + /** + Helper method returns the last object from a collection. If your enumerable + contains only one object, this method should always return that object. + If your enumerable is empty, this method should return `undefined`. + + ```javascript + var arr = ["a", "b", "c"]; + arr.get('lastObject'); // "c" + + var arr = []; + arr.get('lastObject'); // undefined + ``` + + @property lastObject + @return {Object} the last object or undefined + */ + lastObject: computed(function() { + var len = get(this, 'length'); + if (len===0) return undefined ; + var context = popCtx(), idx=0, cur, last = null; + do { + last = cur; + cur = this.nextObject(idx++, last, context); + } while (cur !== undefined); + pushCtx(context); + return last; + }).property('[]'), + + /** + Returns `true` if the passed object can be found in the receiver. The + default version will iterate through the enumerable until the object + is found. You may want to override this with a more efficient version. + + ```javascript + var arr = ["a", "b", "c"]; + arr.contains("a"); // true + arr.contains("z"); // false + ``` + + @method contains + @param {Object} obj The object to search for. + @return {Boolean} `true` if object is found in enumerable. + */ + contains: function(obj) { + return this.find(function(item) { return item===obj; }) !== undefined; + }, + + /** + Iterates through the enumerable, calling the passed function on each + item. This method corresponds to the `forEach()` method defined in + JavaScript 1.6. + + The callback method you provide should have the following signature (all + parameters are optional): + + ```javascript + function(item, index, enumerable); + ``` + + - `item` is the current item in the iteration. + - `index` is the current index in the iteration. + - `enumerable` is the enumerable object itself. + + Note that in addition to a callback, you can also pass an optional target + object that will be set as `this` on the context. This is a good way + to give your iterator function access to the current object. + + @method forEach + @param {Function} callback The callback to execute + @param {Object} [target] The target object to use + @return {Object} receiver + */ + forEach: function(callback, target) { + if (typeof callback !== "function") throw new TypeError() ; + var len = get(this, 'length'), last = null, context = popCtx(); + + if (target === undefined) target = null; + + for(var idx=0;idx1) args = a_slice.call(arguments, 1); + + this.forEach(function(x, idx) { + var method = x && x[methodName]; + if ('function' === typeof method) { + ret[idx] = args ? apply(x, method, args) : x[methodName](); + } + }, this); + + return ret; + }, + + /** + Simply converts the enumerable into a genuine array. The order is not + guaranteed. Corresponds to the method implemented by Prototype. + + @method toArray + @return {Array} the enumerable as an array. + */ + toArray: function() { + var ret = Ember.A(); + this.forEach(function(o, idx) { ret[idx] = o; }); + return ret ; + }, + + /** + Returns a copy of the array with all null and undefined elements removed. + + ```javascript + var arr = ["a", null, "c", undefined]; + arr.compact(); // ["a", "c"] + ``` + + @method compact + @return {Array} the array without null and undefined elements. + */ + compact: function() { + return this.filter(function(value) { return value != null; }); + }, + + /** + Returns a new enumerable that excludes the passed value. The default + implementation returns an array regardless of the receiver type unless + the receiver does not contain the value. + + ```javascript + var arr = ["a", "b", "a", "c"]; + arr.without("a"); // ["b", "c"] + ``` + + @method without + @param {Object} value + @return {Ember.Enumerable} + */ + without: function(value) { + if (!this.contains(value)) return this; // nothing to do + var ret = Ember.A(); + this.forEach(function(k) { + if (k !== value) ret[ret.length] = k; + }) ; + return ret ; + }, + + /** + Returns a new enumerable that contains only unique values. The default + implementation returns an array regardless of the receiver type. + + ```javascript + var arr = ["a", "a", "b", "b"]; + arr.uniq(); // ["a", "b"] + ``` + + @method uniq + @return {Ember.Enumerable} + */ + uniq: function() { + var ret = Ember.A(); + this.forEach(function(k) { + if (a_indexOf(ret, k)<0) ret.push(k); + }); + return ret; + }, + + /** + This property will trigger anytime the enumerable's content changes. + You can observe this property to be notified of changes to the enumerables + content. + + For plain enumerables, this property is read only. `Array` overrides + this method. + + @property [] + @type Array + @return this + */ + '[]': computed(function(key, value) { + return this; + }), + + // .......................................................... + // ENUMERABLE OBSERVERS + // + + /** + Registers an enumerable observer. Must implement `Ember.EnumerableObserver` + mixin. + + @method addEnumerableObserver + @param {Object} target + @param {Hash} [opts] + @return this + */ + addEnumerableObserver: function(target, opts) { + var willChange = (opts && opts.willChange) || 'enumerableWillChange', + didChange = (opts && opts.didChange) || 'enumerableDidChange'; + + var hasObservers = get(this, 'hasEnumerableObservers'); + if (!hasObservers) propertyWillChange(this, 'hasEnumerableObservers'); + addListener(this, '@enumerable:before', target, willChange); + addListener(this, '@enumerable:change', target, didChange); + if (!hasObservers) propertyDidChange(this, 'hasEnumerableObservers'); + return this; + }, + + /** + Removes a registered enumerable observer. + + @method removeEnumerableObserver + @param {Object} target + @param {Hash} [opts] + @return this + */ + removeEnumerableObserver: function(target, opts) { + var willChange = (opts && opts.willChange) || 'enumerableWillChange', + didChange = (opts && opts.didChange) || 'enumerableDidChange'; + + var hasObservers = get(this, 'hasEnumerableObservers'); + if (hasObservers) propertyWillChange(this, 'hasEnumerableObservers'); + removeListener(this, '@enumerable:before', target, willChange); + removeListener(this, '@enumerable:change', target, didChange); + if (hasObservers) propertyDidChange(this, 'hasEnumerableObservers'); + return this; + }, + + /** + Becomes true whenever the array currently has observers watching changes + on the array. + + @property hasEnumerableObservers + @type Boolean + */ + hasEnumerableObservers: computed(function() { + return hasListeners(this, '@enumerable:change') || hasListeners(this, '@enumerable:before'); + }), + + + /** + Invoke this method just before the contents of your enumerable will + change. You can either omit the parameters completely or pass the objects + to be removed or added if available or just a count. + + @method enumerableContentWillChange + @param {Ember.Enumerable|Number} removing An enumerable of the objects to + be removed or the number of items to be removed. + @param {Ember.Enumerable|Number} adding An enumerable of the objects to be + added or the number of items to be added. + @chainable + */ + enumerableContentWillChange: function(removing, adding) { + + var removeCnt, addCnt, hasDelta; + + if ('number' === typeof removing) removeCnt = removing; + else if (removing) removeCnt = get(removing, 'length'); + else removeCnt = removing = -1; + + if ('number' === typeof adding) addCnt = adding; + else if (adding) addCnt = get(adding,'length'); + else addCnt = adding = -1; + + hasDelta = addCnt<0 || removeCnt<0 || addCnt-removeCnt!==0; + + if (removing === -1) removing = null; + if (adding === -1) adding = null; + + propertyWillChange(this, '[]'); + if (hasDelta) propertyWillChange(this, 'length'); + sendEvent(this, '@enumerable:before', [this, removing, adding]); + + return this; + }, + + /** + Invoke this method when the contents of your enumerable has changed. + This will notify any observers watching for content changes. If your are + implementing an ordered enumerable (such as an array), also pass the + start and end values where the content changed so that it can be used to + notify range observers. + + @method enumerableContentDidChange + @param {Ember.Enumerable|Number} removing An enumerable of the objects to + be removed or the number of items to be removed. + @param {Ember.Enumerable|Number} adding An enumerable of the objects to + be added or the number of items to be added. + @chainable + */ + enumerableContentDidChange: function(removing, adding) { + var removeCnt, addCnt, hasDelta; + + if ('number' === typeof removing) removeCnt = removing; + else if (removing) removeCnt = get(removing, 'length'); + else removeCnt = removing = -1; + + if ('number' === typeof adding) addCnt = adding; + else if (adding) addCnt = get(adding, 'length'); + else addCnt = adding = -1; + + hasDelta = addCnt<0 || removeCnt<0 || addCnt-removeCnt!==0; + + if (removing === -1) removing = null; + if (adding === -1) adding = null; + + sendEvent(this, '@enumerable:change', [this, removing, adding]); + if (hasDelta) propertyDidChange(this, 'length'); + propertyDidChange(this, '[]'); + + return this ; + }, + + /** + Converts the enumerable into an array and sorts by the keys + specified in the argument. + + You may provide multiple arguments to sort by multiple properties. + + @method sortBy + @param {String} property name(s) to sort on + @return {Array} The sorted array. + */ + sortBy: function() { + var sortKeys = arguments; + return this.toArray().sort(function(a, b){ + for(var i = 0; i < sortKeys.length; i++) { + var key = sortKeys[i], + propA = get(a, key), + propB = get(b, key); + // return 1 or -1 else continue to the next sortKey + var compareValue = compare(propA, propB); + if (compareValue) { return compareValue; } + } + return 0; + }); + } + }); + + __exports__["default"] = Enumerable; + }); +define("ember-runtime/mixins/evented", + ["ember-metal/mixin","ember-metal/events","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var Mixin = __dependency1__.Mixin; + var addListener = __dependency2__.addListener; + var removeListener = __dependency2__.removeListener; + var hasListeners = __dependency2__.hasListeners; + var sendEvent = __dependency2__.sendEvent; + + /** + @module ember + @submodule ember-runtime + */ + + /** + This mixin allows for Ember objects to subscribe to and emit events. + + ```javascript + App.Person = Ember.Object.extend(Ember.Evented, { + greet: function() { + // ... + this.trigger('greet'); + } + }); + + var person = App.Person.create(); + + person.on('greet', function() { + console.log('Our person has greeted'); + }); + + person.greet(); + + // outputs: 'Our person has greeted' + ``` + + You can also chain multiple event subscriptions: + + ```javascript + person.on('greet', function() { + console.log('Our person has greeted'); + }).one('greet', function() { + console.log('Offer one-time special'); + }).off('event', this, forgetThis); + ``` + + @class Evented + @namespace Ember + */ + var Evented = Mixin.create({ + + /** + Subscribes to a named event with given function. + + ```javascript + person.on('didLoad', function() { + // fired once the person has loaded + }); + ``` + + An optional target can be passed in as the 2nd argument that will + be set as the "this" for the callback. This is a good way to give your + function access to the object triggering the event. When the target + parameter is used the callback becomes the third argument. + + @method on + @param {String} name The name of the event + @param {Object} [target] The "this" binding for the callback + @param {Function} method The callback to execute + @return this + */ + on: function(name, target, method) { + addListener(this, name, target, method); + return this; + }, + + /** + Subscribes a function to a named event and then cancels the subscription + after the first time the event is triggered. It is good to use ``one`` when + you only care about the first time an event has taken place. + + This function takes an optional 2nd argument that will become the "this" + value for the callback. If this argument is passed then the 3rd argument + becomes the function. + + @method one + @param {String} name The name of the event + @param {Object} [target] The "this" binding for the callback + @param {Function} method The callback to execute + @return this + */ + one: function(name, target, method) { + if (!method) { + method = target; + target = null; + } + + addListener(this, name, target, method, true); + return this; + }, + + /** + Triggers a named event for the object. Any additional arguments + will be passed as parameters to the functions that are subscribed to the + event. + + ```javascript + person.on('didEat', function(food) { + console.log('person ate some ' + food); + }); + + person.trigger('didEat', 'broccoli'); + + // outputs: person ate some broccoli + ``` + @method trigger + @param {String} name The name of the event + @param {Object...} args Optional arguments to pass on + */ + trigger: function(name) { + var args = [], i, l; + for (i = 1, l = arguments.length; i < l; i++) { + args.push(arguments[i]); + } + sendEvent(this, name, args); + }, + + /** + Cancels subscription for given name, target, and method. + + @method off + @param {String} name The name of the event + @param {Object} target The target of the subscription + @param {Function} method The function of the subscription + @return this + */ + off: function(name, target, method) { + removeListener(this, name, target, method); + return this; + }, + + /** + Checks to see if object has any subscriptions for named event. + + @method has + @param {String} name The name of the event + @return {Boolean} does the object have a subscription for event + */ + has: function(name) { + return hasListeners(this, name); + } + }); + + __exports__["default"] = Evented; + }); +define("ember-runtime/mixins/freezable", + ["ember-metal/mixin","ember-metal/property_get","ember-metal/property_set","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var Mixin = __dependency1__.Mixin; + var get = __dependency2__.get; + var set = __dependency3__.set; + + /** + The `Ember.Freezable` mixin implements some basic methods for marking an + object as frozen. Once an object is frozen it should be read only. No changes + may be made the internal state of the object. + + ## Enforcement + + To fully support freezing in your subclass, you must include this mixin and + override any method that might alter any property on the object to instead + raise an exception. You can check the state of an object by checking the + `isFrozen` property. + + Although future versions of JavaScript may support language-level freezing + object objects, that is not the case today. Even if an object is freezable, + it is still technically possible to modify the object, even though it could + break other parts of your application that do not expect a frozen object to + change. It is, therefore, very important that you always respect the + `isFrozen` property on all freezable objects. + + ## Example Usage + + The example below shows a simple object that implement the `Ember.Freezable` + protocol. + + ```javascript + Contact = Ember.Object.extend(Ember.Freezable, { + firstName: null, + lastName: null, + + // swaps the names + swapNames: function() { + if (this.get('isFrozen')) throw Ember.FROZEN_ERROR; + var tmp = this.get('firstName'); + this.set('firstName', this.get('lastName')); + this.set('lastName', tmp); + return this; + } + + }); + + c = Contact.create({ firstName: "John", lastName: "Doe" }); + c.swapNames(); // returns c + c.freeze(); + c.swapNames(); // EXCEPTION + ``` + + ## Copying + + Usually the `Ember.Freezable` protocol is implemented in cooperation with the + `Ember.Copyable` protocol, which defines a `frozenCopy()` method that will + return a frozen object, if the object implements this method as well. + + @class Freezable + @namespace Ember + @since Ember 0.9 + */ + var Freezable = Mixin.create({ + + /** + Set to `true` when the object is frozen. Use this property to detect + whether your object is frozen or not. + + @property isFrozen + @type Boolean + */ + isFrozen: false, + + /** + Freezes the object. Once this method has been called the object should + no longer allow any properties to be edited. + + @method freeze + @return {Object} receiver + */ + freeze: function() { + if (get(this, 'isFrozen')) return this; + set(this, 'isFrozen', true); + return this; + } + + }); + + var FROZEN_ERROR = "Frozen object cannot be modified."; + + __exports__.Freezable = Freezable; + __exports__.FROZEN_ERROR = FROZEN_ERROR; + }); +define("ember-runtime/mixins/mutable_array", + ["ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/error","ember-metal/mixin","ember-runtime/mixins/array","ember-runtime/mixins/mutable_enumerable","ember-runtime/mixins/enumerable","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + + // require('ember-runtime/mixins/array'); + // require('ember-runtime/mixins/mutable_enumerable'); + + // .......................................................... + // CONSTANTS + // + + var OUT_OF_RANGE_EXCEPTION = "Index out of range"; + var EMPTY = []; + + // .......................................................... + // HELPERS + // + + var get = __dependency1__.get; + var set = __dependency2__.set; + var isArray = __dependency3__.isArray; + var EmberError = __dependency4__["default"]; + var Mixin = __dependency5__.Mixin; + var required = __dependency5__.required; + var EmberArray = __dependency6__["default"]; + var MutableEnumerable = __dependency7__["default"]; + var Enumerable = __dependency8__["default"]; + /** + This mixin defines the API for modifying array-like objects. These methods + can be applied only to a collection that keeps its items in an ordered set. + It builds upon the Array mixin and adds methods to modify the array. + Concrete implementations of this class include ArrayProxy and ArrayController. + + It is important to use the methods in this class to modify arrays so that + changes are observable. This allows the binding system in Ember to function + correctly. + + + Note that an Array can change even if it does not implement this mixin. + For example, one might implement a SparseArray that cannot be directly + modified, but if its underlying enumerable changes, it will change also. + + @class MutableArray + @namespace Ember + @uses Ember.Array + @uses Ember.MutableEnumerable + */ + var MutableArray = Mixin.create(EmberArray, MutableEnumerable, { + + /** + __Required.__ You must implement this method to apply this mixin. + + This is one of the primitives you must implement to support `Ember.Array`. + You should replace amt objects started at idx with the objects in the + passed array. You should also call `this.enumerableContentDidChange()` + + @method replace + @param {Number} idx Starting index in the array to replace. If + idx >= length, then append to the end of the array. + @param {Number} amt Number of elements that should be removed from + the array, starting at *idx*. + @param {Array} objects An array of zero or more objects that should be + inserted into the array at *idx* + */ + replace: required(), + + /** + Remove all elements from the array. This is useful if you + want to reuse an existing array without having to recreate it. + + ```javascript + var colors = ["red", "green", "blue"]; + color.length(); // 3 + colors.clear(); // [] + colors.length(); // 0 + ``` + + @method clear + @return {Ember.Array} An empty Array. + */ + clear: function () { + var len = get(this, 'length'); + if (len === 0) return this; + this.replace(0, len, EMPTY); + return this; + }, + + /** + This will use the primitive `replace()` method to insert an object at the + specified index. + + ```javascript + var colors = ["red", "green", "blue"]; + colors.insertAt(2, "yellow"); // ["red", "green", "yellow", "blue"] + colors.insertAt(5, "orange"); // Error: Index out of range + ``` + + @method insertAt + @param {Number} idx index of insert the object at. + @param {Object} object object to insert + @return {Ember.Array} receiver + */ + insertAt: function(idx, object) { + if (idx > get(this, 'length')) throw new EmberError(OUT_OF_RANGE_EXCEPTION); + this.replace(idx, 0, [object]); + return this; + }, + + /** + Remove an object at the specified index using the `replace()` primitive + method. You can pass either a single index, or a start and a length. + + If you pass a start and length that is beyond the + length this method will throw an `OUT_OF_RANGE_EXCEPTION`. + + ```javascript + var colors = ["red", "green", "blue", "yellow", "orange"]; + colors.removeAt(0); // ["green", "blue", "yellow", "orange"] + colors.removeAt(2, 2); // ["green", "blue"] + colors.removeAt(4, 2); // Error: Index out of range + ``` + + @method removeAt + @param {Number} start index, start of range + @param {Number} len length of passing range + @return {Ember.Array} receiver + */ + removeAt: function(start, len) { + if ('number' === typeof start) { + + if ((start < 0) || (start >= get(this, 'length'))) { + throw new EmberError(OUT_OF_RANGE_EXCEPTION); + } + + // fast case + if (len === undefined) len = 1; + this.replace(start, len, EMPTY); + } + + return this; + }, + + /** + Push the object onto the end of the array. Works just like `push()` but it + is KVO-compliant. + + ```javascript + var colors = ["red", "green"]; + colors.pushObject("black"); // ["red", "green", "black"] + colors.pushObject(["yellow"]); // ["red", "green", ["yellow"]] + ``` + + @method pushObject + @param {*} obj object to push + @return object same object passed as a param + */ + pushObject: function(obj) { + this.insertAt(get(this, 'length'), obj); + return obj; + }, + + /** + Add the objects in the passed numerable to the end of the array. Defers + notifying observers of the change until all objects are added. + + ```javascript + var colors = ["red"]; + colors.pushObjects(["yellow", "orange"]); // ["red", "yellow", "orange"] + ``` + + @method pushObjects + @param {Ember.Enumerable} objects the objects to add + @return {Ember.Array} receiver + */ + pushObjects: function(objects) { + if (!(Enumerable.detect(objects) || isArray(objects))) { + throw new TypeError("Must pass Ember.Enumerable to Ember.MutableArray#pushObjects"); + } + this.replace(get(this, 'length'), 0, objects); + return this; + }, + + /** + Pop object from array or nil if none are left. Works just like `pop()` but + it is KVO-compliant. + + ```javascript + var colors = ["red", "green", "blue"]; + colors.popObject(); // "blue" + console.log(colors); // ["red", "green"] + ``` + + @method popObject + @return object + */ + popObject: function() { + var len = get(this, 'length'); + if (len === 0) return null; + + var ret = this.objectAt(len-1); + this.removeAt(len-1, 1); + return ret; + }, + + /** + Shift an object from start of array or nil if none are left. Works just + like `shift()` but it is KVO-compliant. + + ```javascript + var colors = ["red", "green", "blue"]; + colors.shiftObject(); // "red" + console.log(colors); // ["green", "blue"] + ``` + + @method shiftObject + @return object + */ + shiftObject: function() { + if (get(this, 'length') === 0) return null; + var ret = this.objectAt(0); + this.removeAt(0); + return ret; + }, + + /** + Unshift an object to start of array. Works just like `unshift()` but it is + KVO-compliant. + + ```javascript + var colors = ["red"]; + colors.unshiftObject("yellow"); // ["yellow", "red"] + colors.unshiftObject(["black"]); // [["black"], "yellow", "red"] + ``` + + @method unshiftObject + @param {*} obj object to unshift + @return object same object passed as a param + */ + unshiftObject: function(obj) { + this.insertAt(0, obj); + return obj; + }, + + /** + Adds the named objects to the beginning of the array. Defers notifying + observers until all objects have been added. + + ```javascript + var colors = ["red"]; + colors.unshiftObjects(["black", "white"]); // ["black", "white", "red"] + colors.unshiftObjects("yellow"); // Type Error: 'undefined' is not a function + ``` + + @method unshiftObjects + @param {Ember.Enumerable} objects the objects to add + @return {Ember.Array} receiver + */ + unshiftObjects: function(objects) { + this.replace(0, 0, objects); + return this; + }, + + /** + Reverse objects in the array. Works just like `reverse()` but it is + KVO-compliant. + + @method reverseObjects + @return {Ember.Array} receiver + */ + reverseObjects: function() { + var len = get(this, 'length'); + if (len === 0) return this; + var objects = this.toArray().reverse(); + this.replace(0, len, objects); + return this; + }, + + /** + Replace all the the receiver's content with content of the argument. + If argument is an empty array receiver will be cleared. + + ```javascript + var colors = ["red", "green", "blue"]; + colors.setObjects(["black", "white"]); // ["black", "white"] + colors.setObjects([]); // [] + ``` + + @method setObjects + @param {Ember.Array} objects array whose content will be used for replacing + the content of the receiver + @return {Ember.Array} receiver with the new content + */ + setObjects: function(objects) { + if (objects.length === 0) return this.clear(); + + var len = get(this, 'length'); + this.replace(0, len, objects); + return this; + }, + + // .......................................................... + // IMPLEMENT Ember.MutableEnumerable + // + + /** + Remove all occurances of an object in the array. + + ```javascript + var cities = ["Chicago", "Berlin", "Lima", "Chicago"]; + cities.removeObject("Chicago"); // ["Berlin", "Lima"] + cities.removeObject("Lima"); // ["Berlin"] + cities.removeObject("Tokyo") // ["Berlin"] + ``` + + @method removeObject + @param {*} obj object to remove + @return {Ember.Array} receiver + */ + removeObject: function(obj) { + var loc = get(this, 'length') || 0; + while(--loc >= 0) { + var curObject = this.objectAt(loc); + if (curObject === obj) this.removeAt(loc); + } + return this; + }, + + /** + Push the object onto the end of the array if it is not already + present in the array. + + ```javascript + var cities = ["Chicago", "Berlin"]; + cities.addObject("Lima"); // ["Chicago", "Berlin", "Lima"] + cities.addObject("Berlin"); // ["Chicago", "Berlin", "Lima"] + ``` + + @method addObject + @param {*} obj object to add, if not already present + @return {Ember.Array} receiver + */ + addObject: function(obj) { + if (!this.contains(obj)) this.pushObject(obj); + return this; + } + + }); + + __exports__["default"] = MutableArray; + }); +define("ember-runtime/mixins/mutable_enumerable", + ["ember-metal/enumerable_utils","ember-runtime/mixins/enumerable","ember-metal/mixin","ember-metal/property_events","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + var EnumerableUtils = __dependency1__["default"]; + var Enumerable = __dependency2__["default"]; + var Mixin = __dependency3__.Mixin; + var required = __dependency3__.required; + var beginPropertyChanges = __dependency4__.beginPropertyChanges; + var endPropertyChanges = __dependency4__.endPropertyChanges; + + /** + @module ember + @submodule ember-runtime + */ + + var forEach = EnumerableUtils.forEach; + + /** + This mixin defines the API for modifying generic enumerables. These methods + can be applied to an object regardless of whether it is ordered or + unordered. + + Note that an Enumerable can change even if it does not implement this mixin. + For example, a MappedEnumerable cannot be directly modified but if its + underlying enumerable changes, it will change also. + + ## Adding Objects + + To add an object to an enumerable, use the `addObject()` method. This + method will only add the object to the enumerable if the object is not + already present and is of a type supported by the enumerable. + + ```javascript + set.addObject(contact); + ``` + + ## Removing Objects + + To remove an object from an enumerable, use the `removeObject()` method. This + will only remove the object if it is present in the enumerable, otherwise + this method has no effect. + + ```javascript + set.removeObject(contact); + ``` + + ## Implementing In Your Own Code + + If you are implementing an object and want to support this API, just include + this mixin in your class and implement the required methods. In your unit + tests, be sure to apply the Ember.MutableEnumerableTests to your object. + + @class MutableEnumerable + @namespace Ember + @uses Ember.Enumerable + */ + var MutableEnumerable = Mixin.create(Enumerable, { + + /** + __Required.__ You must implement this method to apply this mixin. + + Attempts to add the passed object to the receiver if the object is not + already present in the collection. If the object is present, this method + has no effect. + + If the passed object is of a type not supported by the receiver, + then this method should raise an exception. + + @method addObject + @param {Object} object The object to add to the enumerable. + @return {Object} the passed object + */ + addObject: required(Function), + + /** + Adds each object in the passed enumerable to the receiver. + + @method addObjects + @param {Ember.Enumerable} objects the objects to add. + @return {Object} receiver + */ + addObjects: function(objects) { + beginPropertyChanges(this); + forEach(objects, function(obj) { this.addObject(obj); }, this); + endPropertyChanges(this); + return this; + }, + + /** + __Required.__ You must implement this method to apply this mixin. + + Attempts to remove the passed object from the receiver collection if the + object is present in the collection. If the object is not present, + this method has no effect. + + If the passed object is of a type not supported by the receiver, + then this method should raise an exception. + + @method removeObject + @param {Object} object The object to remove from the enumerable. + @return {Object} the passed object + */ + removeObject: required(Function), + + + /** + Removes each object in the passed enumerable from the receiver. + + @method removeObjects + @param {Ember.Enumerable} objects the objects to remove + @return {Object} receiver + */ + removeObjects: function(objects) { + beginPropertyChanges(this); + forEach(objects, function(obj) { this.removeObject(obj); }, this); + endPropertyChanges(this); + return this; + } + }); + + __exports__["default"] = MutableEnumerable; + }); +define("ember-runtime/mixins/observable", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/get_properties","ember-metal/set_properties","ember-metal/mixin","ember-metal/events","ember-metal/property_events","ember-metal/observer","ember-metal/computed","ember-metal/is_none","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + var Ember = __dependency1__["default"]; + // Ember.assert + + var get = __dependency2__.get; + var getWithDefault = __dependency2__.getWithDefault; + var set = __dependency3__.set; + var apply = __dependency4__.apply; + var getProperties = __dependency5__["default"]; + var setProperties = __dependency6__["default"]; + var Mixin = __dependency7__.Mixin; + var hasListeners = __dependency8__.hasListeners; + var beginPropertyChanges = __dependency9__.beginPropertyChanges; + var propertyWillChange = __dependency9__.propertyWillChange; + var propertyDidChange = __dependency9__.propertyDidChange; + var endPropertyChanges = __dependency9__.endPropertyChanges; + var addObserver = __dependency10__.addObserver; + var addBeforeObserver = __dependency10__.addBeforeObserver; + var removeObserver = __dependency10__.removeObserver; + var observersFor = __dependency10__.observersFor; + var cacheFor = __dependency11__.cacheFor; + var isNone = __dependency12__.isNone; + + + var slice = Array.prototype.slice; + /** + ## Overview + + This mixin provides properties and property observing functionality, core + features of the Ember object model. + + Properties and observers allow one object to observe changes to a + property on another object. This is one of the fundamental ways that + models, controllers and views communicate with each other in an Ember + application. + + Any object that has this mixin applied can be used in observer + operations. That includes `Ember.Object` and most objects you will + interact with as you write your Ember application. + + Note that you will not generally apply this mixin to classes yourself, + but you will use the features provided by this module frequently, so it + is important to understand how to use it. + + ## Using `get()` and `set()` + + Because of Ember's support for bindings and observers, you will always + access properties using the get method, and set properties using the + set method. This allows the observing objects to be notified and + computed properties to be handled properly. + + More documentation about `get` and `set` are below. + + ## Observing Property Changes + + You typically observe property changes simply by adding the `observes` + call to the end of your method declarations in classes that you write. + For example: + + ```javascript + Ember.Object.extend({ + valueObserver: function() { + // Executes whenever the "value" property changes + }.observes('value') + }); + ``` + + Although this is the most common way to add an observer, this capability + is actually built into the `Ember.Object` class on top of two methods + defined in this mixin: `addObserver` and `removeObserver`. You can use + these two methods to add and remove observers yourself if you need to + do so at runtime. + + To add an observer for a property, call: + + ```javascript + object.addObserver('propertyKey', targetObject, targetAction) + ``` + + This will call the `targetAction` method on the `targetObject` whenever + the value of the `propertyKey` changes. + + Note that if `propertyKey` is a computed property, the observer will be + called when any of the property dependencies are changed, even if the + resulting value of the computed property is unchanged. This is necessary + because computed properties are not computed until `get` is called. + + @class Observable + @namespace Ember + */ + var Observable = Mixin.create({ + + /** + Retrieves the value of a property from the object. + + This method is usually similar to using `object[keyName]` or `object.keyName`, + however it supports both computed properties and the unknownProperty + handler. + + Because `get` unifies the syntax for accessing all these kinds + of properties, it can make many refactorings easier, such as replacing a + simple property with a computed property, or vice versa. + + ### Computed Properties + + Computed properties are methods defined with the `property` modifier + declared at the end, such as: + + ```javascript + fullName: function() { + return this.get('firstName') + ' ' + this.get('lastName'); + }.property('firstName', 'lastName') + ``` + + When you call `get` on a computed property, the function will be + called and the return value will be returned instead of the function + itself. + + ### Unknown Properties + + Likewise, if you try to call `get` on a property whose value is + `undefined`, the `unknownProperty()` method will be called on the object. + If this method returns any value other than `undefined`, it will be returned + instead. This allows you to implement "virtual" properties that are + not defined upfront. + + @method get + @param {String} keyName The property to retrieve + @return {Object} The property value or undefined. + */ + get: function(keyName) { + return get(this, keyName); + }, + + /** + To get multiple properties at once, call `getProperties` + with a list of strings or an array: + + ```javascript + record.getProperties('firstName', 'lastName', 'zipCode'); // { firstName: 'John', lastName: 'Doe', zipCode: '10011' } + ``` + + is equivalent to: + + ```javascript + record.getProperties(['firstName', 'lastName', 'zipCode']); // { firstName: 'John', lastName: 'Doe', zipCode: '10011' } + ``` + + @method getProperties + @param {String...|Array} list of keys to get + @return {Hash} + */ + getProperties: function() { + return apply(null, getProperties, [this].concat(slice.call(arguments))); + }, + + /** + Sets the provided key or path to the value. + + This method is generally very similar to calling `object[key] = value` or + `object.key = value`, except that it provides support for computed + properties, the `setUnknownProperty()` method and property observers. + + ### Computed Properties + + If you try to set a value on a key that has a computed property handler + defined (see the `get()` method for an example), then `set()` will call + that method, passing both the value and key instead of simply changing + the value itself. This is useful for those times when you need to + implement a property that is composed of one or more member + properties. + + ### Unknown Properties + + If you try to set a value on a key that is undefined in the target + object, then the `setUnknownProperty()` handler will be called instead. This + gives you an opportunity to implement complex "virtual" properties that + are not predefined on the object. If `setUnknownProperty()` returns + undefined, then `set()` will simply set the value on the object. + + ### Property Observers + + In addition to changing the property, `set()` will also register a property + change with the object. Unless you have placed this call inside of a + `beginPropertyChanges()` and `endPropertyChanges(),` any "local" observers + (i.e. observer methods declared on the same object), will be called + immediately. Any "remote" observers (i.e. observer methods declared on + another object) will be placed in a queue and called at a later time in a + coalesced manner. + + ### Chaining + + In addition to property changes, `set()` returns the value of the object + itself so you can do chaining like this: + + ```javascript + record.set('firstName', 'Charles').set('lastName', 'Jolley'); + ``` + + @method set + @param {String} keyName The property to set + @param {Object} value The value to set or `null`. + @return {Ember.Observable} + */ + set: function(keyName, value) { + set(this, keyName, value); + return this; + }, + + + /** + Sets a list of properties at once. These properties are set inside + a single `beginPropertyChanges` and `endPropertyChanges` batch, so + observers will be buffered. + + ```javascript + record.setProperties({ firstName: 'Charles', lastName: 'Jolley' }); + ``` + + @method setProperties + @param {Hash} hash the hash of keys and values to set + @return {Ember.Observable} + */ + setProperties: function(hash) { + return setProperties(this, hash); + }, + + /** + Begins a grouping of property changes. + + You can use this method to group property changes so that notifications + will not be sent until the changes are finished. If you plan to make a + large number of changes to an object at one time, you should call this + method at the beginning of the changes to begin deferring change + notifications. When you are done making changes, call + `endPropertyChanges()` to deliver the deferred change notifications and end + deferring. + + @method beginPropertyChanges + @return {Ember.Observable} + */ + beginPropertyChanges: function() { + beginPropertyChanges(); + return this; + }, + + /** + Ends a grouping of property changes. + + You can use this method to group property changes so that notifications + will not be sent until the changes are finished. If you plan to make a + large number of changes to an object at one time, you should call + `beginPropertyChanges()` at the beginning of the changes to defer change + notifications. When you are done making changes, call this method to + deliver the deferred change notifications and end deferring. + + @method endPropertyChanges + @return {Ember.Observable} + */ + endPropertyChanges: function() { + endPropertyChanges(); + return this; + }, + + /** + Notify the observer system that a property is about to change. + + Sometimes you need to change a value directly or indirectly without + actually calling `get()` or `set()` on it. In this case, you can use this + method and `propertyDidChange()` instead. Calling these two methods + together will notify all observers that the property has potentially + changed value. + + Note that you must always call `propertyWillChange` and `propertyDidChange` + as a pair. If you do not, it may get the property change groups out of + order and cause notifications to be delivered more often than you would + like. + + @method propertyWillChange + @param {String} keyName The property key that is about to change. + @return {Ember.Observable} + */ + propertyWillChange: function(keyName) { + propertyWillChange(this, keyName); + return this; + }, + + /** + Notify the observer system that a property has just changed. + + Sometimes you need to change a value directly or indirectly without + actually calling `get()` or `set()` on it. In this case, you can use this + method and `propertyWillChange()` instead. Calling these two methods + together will notify all observers that the property has potentially + changed value. + + Note that you must always call `propertyWillChange` and `propertyDidChange` + as a pair. If you do not, it may get the property change groups out of + order and cause notifications to be delivered more often than you would + like. + + @method propertyDidChange + @param {String} keyName The property key that has just changed. + @return {Ember.Observable} + */ + propertyDidChange: function(keyName) { + propertyDidChange(this, keyName); + return this; + }, + + /** + Convenience method to call `propertyWillChange` and `propertyDidChange` in + succession. + + @method notifyPropertyChange + @param {String} keyName The property key to be notified about. + @return {Ember.Observable} + */ + notifyPropertyChange: function(keyName) { + this.propertyWillChange(keyName); + this.propertyDidChange(keyName); + return this; + }, + + addBeforeObserver: function(key, target, method) { + addBeforeObserver(this, key, target, method); + }, + + /** + Adds an observer on a property. + + This is the core method used to register an observer for a property. + + Once you call this method, any time the key's value is set, your observer + will be notified. Note that the observers are triggered any time the + value is set, regardless of whether it has actually changed. Your + observer should be prepared to handle that. + + You can also pass an optional context parameter to this method. The + context will be passed to your observer method whenever it is triggered. + Note that if you add the same target/method pair on a key multiple times + with different context parameters, your observer will only be called once + with the last context you passed. + + ### Observer Methods + + Observer methods you pass should generally have the following signature if + you do not pass a `context` parameter: + + ```javascript + fooDidChange: function(sender, key, value, rev) { }; + ``` + + The sender is the object that changed. The key is the property that + changes. The value property is currently reserved and unused. The rev + is the last property revision of the object when it changed, which you can + use to detect if the key value has really changed or not. + + If you pass a `context` parameter, the context will be passed before the + revision like so: + + ```javascript + fooDidChange: function(sender, key, value, context, rev) { }; + ``` + + Usually you will not need the value, context or revision parameters at + the end. In this case, it is common to write observer methods that take + only a sender and key value as parameters or, if you aren't interested in + any of these values, to write an observer that has no parameters at all. + + @method addObserver + @param {String} key The key to observer + @param {Object} target The target object to invoke + @param {String|Function} method The method to invoke. + @return {Ember.Object} self + */ + addObserver: function(key, target, method) { + addObserver(this, key, target, method); + }, + + /** + Remove an observer you have previously registered on this object. Pass + the same key, target, and method you passed to `addObserver()` and your + target will no longer receive notifications. + + @method removeObserver + @param {String} key The key to observer + @param {Object} target The target object to invoke + @param {String|Function} method The method to invoke. + @return {Ember.Observable} receiver + */ + removeObserver: function(key, target, method) { + removeObserver(this, key, target, method); + }, + + /** + Returns `true` if the object currently has observers registered for a + particular key. You can use this method to potentially defer performing + an expensive action until someone begins observing a particular property + on the object. + + @method hasObserverFor + @param {String} key Key to check + @return {Boolean} + */ + hasObserverFor: function(key) { + return hasListeners(this, key+':change'); + }, + + /** + Retrieves the value of a property, or a default value in the case that the + property returns `undefined`. + + ```javascript + person.getWithDefault('lastName', 'Doe'); + ``` + + @method getWithDefault + @param {String} keyName The name of the property to retrieve + @param {Object} defaultValue The value to return if the property value is undefined + @return {Object} The property value or the defaultValue. + */ + getWithDefault: function(keyName, defaultValue) { + return getWithDefault(this, keyName, defaultValue); + }, + + /** + Set the value of a property to the current value plus some amount. + + ```javascript + person.incrementProperty('age'); + team.incrementProperty('score', 2); + ``` + + @method incrementProperty + @param {String} keyName The name of the property to increment + @param {Number} increment The amount to increment by. Defaults to 1 + @return {Number} The new property value + */ + incrementProperty: function(keyName, increment) { + if (isNone(increment)) { increment = 1; } + Ember.assert("Must pass a numeric value to incrementProperty", (!isNaN(parseFloat(increment)) && isFinite(increment))); + set(this, keyName, (parseFloat(get(this, keyName)) || 0) + increment); + return get(this, keyName); + }, + + /** + Set the value of a property to the current value minus some amount. + + ```javascript + player.decrementProperty('lives'); + orc.decrementProperty('health', 5); + ``` + + @method decrementProperty + @param {String} keyName The name of the property to decrement + @param {Number} decrement The amount to decrement by. Defaults to 1 + @return {Number} The new property value + */ + decrementProperty: function(keyName, decrement) { + if (isNone(decrement)) { decrement = 1; } + Ember.assert("Must pass a numeric value to decrementProperty", (!isNaN(parseFloat(decrement)) && isFinite(decrement))); + set(this, keyName, (get(this, keyName) || 0) - decrement); + return get(this, keyName); + }, + + /** + Set the value of a boolean property to the opposite of it's + current value. + + ```javascript + starship.toggleProperty('warpDriveEngaged'); + ``` + + @method toggleProperty + @param {String} keyName The name of the property to toggle + @return {Object} The new property value + */ + toggleProperty: function(keyName) { + set(this, keyName, !get(this, keyName)); + return get(this, keyName); + }, + + /** + Returns the cached value of a computed property, if it exists. + This allows you to inspect the value of a computed property + without accidentally invoking it if it is intended to be + generated lazily. + + @method cacheFor + @param {String} keyName + @return {Object} The cached value of the computed property, if any + */ + cacheFor: function(keyName) { + return cacheFor(this, keyName); + }, + + // intended for debugging purposes + observersForKey: function(keyName) { + return observersFor(this, keyName); + } + }); + + __exports__["default"] = Observable; + }); +define("ember-runtime/mixins/promise_proxy", + ["ember-metal/property_get","ember-metal/property_set","ember-metal/computed","ember-metal/mixin","ember-metal/error","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var set = __dependency2__.set; + var computed = __dependency3__.computed; + var Mixin = __dependency4__.Mixin; + var EmberError = __dependency5__["default"]; + + var not = computed.not, or = computed.or; + + /** + @module ember + @submodule ember-runtime + */ + + function tap(proxy, promise) { + set(proxy, 'isFulfilled', false); + set(proxy, 'isRejected', false); + + return promise.then(function(value) { + set(proxy, 'isFulfilled', true); + set(proxy, 'content', value); + return value; + }, function(reason) { + set(proxy, 'isRejected', true); + set(proxy, 'reason', reason); + throw reason; + }, "Ember: PromiseProxy"); + } + + /** + A low level mixin making ObjectProxy, ObjectController or ArrayController's promise aware. + + ```javascript + var ObjectPromiseController = Ember.ObjectController.extend(Ember.PromiseProxyMixin); + + var controller = ObjectPromiseController.create({ + promise: $.getJSON('/some/remote/data.json') + }); + + controller.then(function(json){ + // the json + }, function(reason) { + // the reason why you have no json + }); + ``` + + the controller has bindable attributes which + track the promises life cycle + + ```javascript + controller.get('isPending') //=> true + controller.get('isSettled') //=> false + controller.get('isRejected') //=> false + controller.get('isFulfilled') //=> false + ``` + + When the the $.getJSON completes, and the promise is fulfilled + with json, the life cycle attributes will update accordingly. + + ```javascript + controller.get('isPending') //=> false + controller.get('isSettled') //=> true + controller.get('isRejected') //=> false + controller.get('isFulfilled') //=> true + ``` + + As the controller is an ObjectController, and the json now its content, + all the json properties will be available directly from the controller. + + ```javascript + // Assuming the following json: + { + firstName: 'Stefan', + lastName: 'Penner' + } + + // both properties will accessible on the controller + controller.get('firstName') //=> 'Stefan' + controller.get('lastName') //=> 'Penner' + ``` + + If the controller is backing a template, the attributes are + bindable from within that template + + ```handlebars + {{#if isPending}} + loading... + {{else}} + firstName: {{firstName}} + lastName: {{lastName}} + {{/if}} + ``` + @class Ember.PromiseProxyMixin + */ + var PromiseProxyMixin = Mixin.create({ + /** + If the proxied promise is rejected this will contain the reason + provided. + + @property reason + @default null + */ + reason: null, + + /** + Once the proxied promise has settled this will become `false`. + + @property isPending + @default true + */ + isPending: not('isSettled').readOnly(), + + /** + Once the proxied promise has settled this will become `true`. + + @property isSettled + @default false + */ + isSettled: or('isRejected', 'isFulfilled').readOnly(), + + /** + Will become `true` if the proxied promise is rejected. + + @property isRejected + @default false + */ + isRejected: false, + + /** + Will become `true` if the proxied promise is fulfilled. + + @property isFullfilled + @default false + */ + isFulfilled: false, + + /** + The promise whose fulfillment value is being proxied by this object. + + This property must be specified upon creation, and should not be + changed once created. + + Example: + + ```javascript + Ember.ObjectController.extend(Ember.PromiseProxyMixin).create({ + promise: + }); + ``` + + @property promise + */ + promise: computed(function(key, promise) { + if (arguments.length === 2) { + return tap(this, promise); + } else { + throw new EmberError("PromiseProxy's promise must be set"); + } + }), + + /** + An alias to the proxied promise's `then`. + + See RSVP.Promise.then. + + @method then + @param {Function} callback + @return {RSVP.Promise} + */ + then: promiseAlias('then'), + + /** + An alias to the proxied promise's `catch`. + + See RSVP.Promise.catch. + + @method catch + @param {Function} callback + @return {RSVP.Promise} + */ + 'catch': promiseAlias('catch'), + + /** + An alias to the proxied promise's `finally`. + + See RSVP.Promise.finally. + + @method finally + @param {Function} callback + @return {RSVP.Promise} + */ + 'finally': promiseAlias('finally') + + }); + + function promiseAlias(name) { + return function () { + var promise = get(this, 'promise'); + return promise[name].apply(promise, arguments); + }; + } + + __exports__["default"] = PromiseProxyMixin; + }); +define("ember-runtime/mixins/sortable", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/enumerable_utils","ember-metal/mixin","ember-runtime/mixins/mutable_enumerable","ember-runtime/compare","ember-metal/observer","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.A + + var get = __dependency2__.get; + var set = __dependency3__.set; + var EnumerableUtils = __dependency4__["default"]; + var Mixin = __dependency5__.Mixin; + var MutableEnumerable = __dependency6__["default"]; + var compare = __dependency7__["default"]; + var addObserver = __dependency8__.addObserver; + var removeObserver = __dependency8__.removeObserver; + var computed = __dependency9__.computed; + var beforeObserver = __dependency5__.beforeObserver; + var observer = __dependency5__.observer; + //ES6TODO: should we access these directly from their package or from how thier exposed in ember-metal? + + var forEach = EnumerableUtils.forEach; + + /** + `Ember.SortableMixin` provides a standard interface for array proxies + to specify a sort order and maintain this sorting when objects are added, + removed, or updated without changing the implicit order of their underlying + content array: + + ```javascript + songs = [ + {trackNumber: 4, title: 'Ob-La-Di, Ob-La-Da'}, + {trackNumber: 2, title: 'Back in the U.S.S.R.'}, + {trackNumber: 3, title: 'Glass Onion'}, + ]; + + songsController = Ember.ArrayController.create({ + content: songs, + sortProperties: ['trackNumber'], + sortAscending: true + }); + + songsController.get('firstObject'); // {trackNumber: 2, title: 'Back in the U.S.S.R.'} + + songsController.addObject({trackNumber: 1, title: 'Dear Prudence'}); + songsController.get('firstObject'); // {trackNumber: 1, title: 'Dear Prudence'} + ``` + + If you add or remove the properties to sort by or change the sort direction the content + sort order will be automatically updated. + + ```javascript + songsController.set('sortProperties', ['title']); + songsController.get('firstObject'); // {trackNumber: 2, title: 'Back in the U.S.S.R.'} + + songsController.toggleProperty('sortAscending'); + songsController.get('firstObject'); // {trackNumber: 4, title: 'Ob-La-Di, Ob-La-Da'} + ``` + + SortableMixin works by sorting the arrangedContent array, which is the array that + arrayProxy displays. Due to the fact that the underlying 'content' array is not changed, that + array will not display the sorted list: + + ```javascript + songsController.get('content').get('firstObject'); // Returns the unsorted original content + songsController.get('firstObject'); // Returns the sorted content. + ``` + + Although the sorted content can also be accessed through the arrangedContent property, + it is preferable to use the proxied class and not the arrangedContent array directly. + + @class SortableMixin + @namespace Ember + @uses Ember.MutableEnumerable + */ + var SortableMixin = Mixin.create(MutableEnumerable, { + + /** + Specifies which properties dictate the arrangedContent's sort order. + + When specifying multiple properties the sorting will use properties + from the `sortProperties` array prioritized from first to last. + + @property {Array} sortProperties + */ + sortProperties: null, + + /** + Specifies the arrangedContent's sort direction. + Sorts the content in ascending order by default. Set to `false` to + use descending order. + + @property {Boolean} sortAscending + @default true + */ + sortAscending: true, + + /** + The function used to compare two values. You can override this if you + want to do custom comparisons. Functions must be of the type expected by + Array#sort, i.e. + return 0 if the two parameters are equal, + return a negative value if the first parameter is smaller than the second or + return a positive value otherwise: + + ```javascript + function(x,y) { // These are assumed to be integers + if (x === y) + return 0; + return x < y ? -1 : 1; + } + ``` + + @property sortFunction + @type {Function} + @default Ember.compare + */ + sortFunction: compare, + + orderBy: function(item1, item2) { + var result = 0, + sortProperties = get(this, 'sortProperties'), + sortAscending = get(this, 'sortAscending'), + sortFunction = get(this, 'sortFunction'); + + Ember.assert("you need to define `sortProperties`", !!sortProperties); + + forEach(sortProperties, function(propertyName) { + if (result === 0) { + result = sortFunction(get(item1, propertyName), get(item2, propertyName)); + if ((result !== 0) && !sortAscending) { + result = (-1) * result; + } + } + }); + + return result; + }, + + destroy: function() { + var content = get(this, 'content'), + sortProperties = get(this, 'sortProperties'); + + if (content && sortProperties) { + forEach(content, function(item) { + forEach(sortProperties, function(sortProperty) { + removeObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange'); + }, this); + }, this); + } + + return this._super(); + }, + + isSorted: computed.bool('sortProperties'), + + /** + Overrides the default arrangedContent from arrayProxy in order to sort by sortFunction. + Also sets up observers for each sortProperty on each item in the content Array. + + @property arrangedContent + */ + + arrangedContent: computed('content', 'sortProperties.@each', function(key, value) { + var content = get(this, 'content'), + isSorted = get(this, 'isSorted'), + sortProperties = get(this, 'sortProperties'), + self = this; + + if (content && isSorted) { + content = content.slice(); + content.sort(function(item1, item2) { + return self.orderBy(item1, item2); + }); + forEach(content, function(item) { + forEach(sortProperties, function(sortProperty) { + addObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange'); + }, this); + }, this); + return Ember.A(content); + } + + return content; + }), + + _contentWillChange: beforeObserver('content', function() { + var content = get(this, 'content'), + sortProperties = get(this, 'sortProperties'); + + if (content && sortProperties) { + forEach(content, function(item) { + forEach(sortProperties, function(sortProperty) { + removeObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange'); + }, this); + }, this); + } + + this._super(); + }), + + sortAscendingWillChange: beforeObserver('sortAscending', function() { + this._lastSortAscending = get(this, 'sortAscending'); + }), + + sortAscendingDidChange: observer('sortAscending', function() { + if (get(this, 'sortAscending') !== this._lastSortAscending) { + var arrangedContent = get(this, 'arrangedContent'); + arrangedContent.reverseObjects(); + } + }), + + contentArrayWillChange: function(array, idx, removedCount, addedCount) { + var isSorted = get(this, 'isSorted'); + + if (isSorted) { + var arrangedContent = get(this, 'arrangedContent'); + var removedObjects = array.slice(idx, idx+removedCount); + var sortProperties = get(this, 'sortProperties'); + + forEach(removedObjects, function(item) { + arrangedContent.removeObject(item); + + forEach(sortProperties, function(sortProperty) { + removeObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange'); + }, this); + }, this); + } + + return this._super(array, idx, removedCount, addedCount); + }, + + contentArrayDidChange: function(array, idx, removedCount, addedCount) { + var isSorted = get(this, 'isSorted'), + sortProperties = get(this, 'sortProperties'); + + if (isSorted) { + var addedObjects = array.slice(idx, idx+addedCount); + + forEach(addedObjects, function(item) { + this.insertItemSorted(item); + + forEach(sortProperties, function(sortProperty) { + addObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange'); + }, this); + }, this); + } + + return this._super(array, idx, removedCount, addedCount); + }, + + insertItemSorted: function(item) { + var arrangedContent = get(this, 'arrangedContent'); + var length = get(arrangedContent, 'length'); + + var idx = this._binarySearch(item, 0, length); + arrangedContent.insertAt(idx, item); + }, + + contentItemSortPropertyDidChange: function(item) { + var arrangedContent = get(this, 'arrangedContent'), + oldIndex = arrangedContent.indexOf(item), + leftItem = arrangedContent.objectAt(oldIndex - 1), + rightItem = arrangedContent.objectAt(oldIndex + 1), + leftResult = leftItem && this.orderBy(item, leftItem), + rightResult = rightItem && this.orderBy(item, rightItem); + + if (leftResult < 0 || rightResult > 0) { + arrangedContent.removeObject(item); + this.insertItemSorted(item); + } + }, + + _binarySearch: function(item, low, high) { + var mid, midItem, res, arrangedContent; + + if (low === high) { + return low; + } + + arrangedContent = get(this, 'arrangedContent'); + + mid = low + Math.floor((high - low) / 2); + midItem = arrangedContent.objectAt(mid); + + res = this.orderBy(midItem, item); + + if (res < 0) { + return this._binarySearch(item, mid+1, high); + } else if (res > 0) { + return this._binarySearch(item, low, mid); + } + + return mid; + } + }); + + __exports__["default"] = SortableMixin; + }); +define("ember-runtime/mixins/target_action_support", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/mixin","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + var Ember = __dependency1__["default"]; + // Ember.lookup, Ember.assert + + var get = __dependency2__.get; + var set = __dependency3__.set; + var typeOf = __dependency4__.typeOf; + var Mixin = __dependency5__.Mixin; + var computed = __dependency6__.computed; + + /** + `Ember.TargetActionSupport` is a mixin that can be included in a class + to add a `triggerAction` method with semantics similar to the Handlebars + `{{action}}` helper. In normal Ember usage, the `{{action}}` helper is + usually the best choice. This mixin is most often useful when you are + doing more complex event handling in View objects. + + See also `Ember.ViewTargetActionSupport`, which has + view-aware defaults for target and actionContext. + + @class TargetActionSupport + @namespace Ember + @extends Ember.Mixin + */ + var TargetActionSupport = Mixin.create({ + target: null, + action: null, + actionContext: null, + + targetObject: computed(function() { + var target = get(this, 'target'); + + if (typeOf(target) === "string") { + var value = get(this, target); + if (value === undefined) { value = get(Ember.lookup, target); } + return value; + } else { + return target; + } + }).property('target'), + + actionContextObject: computed(function() { + var actionContext = get(this, 'actionContext'); + + if (typeOf(actionContext) === "string") { + var value = get(this, actionContext); + if (value === undefined) { value = get(Ember.lookup, actionContext); } + return value; + } else { + return actionContext; + } + }).property('actionContext'), + + /** + Send an `action` with an `actionContext` to a `target`. The action, actionContext + and target will be retrieved from properties of the object. For example: + + ```javascript + App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, { + target: Ember.computed.alias('controller'), + action: 'save', + actionContext: Ember.computed.alias('context'), + click: function() { + this.triggerAction(); // Sends the `save` action, along with the current context + // to the current controller + } + }); + ``` + + The `target`, `action`, and `actionContext` can be provided as properties of + an optional object argument to `triggerAction` as well. + + ```javascript + App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, { + click: function() { + this.triggerAction({ + action: 'save', + target: this.get('controller'), + actionContext: this.get('context'), + }); // Sends the `save` action, along with the current context + // to the current controller + } + }); + ``` + + The `actionContext` defaults to the object you mixing `TargetActionSupport` into. + But `target` and `action` must be specified either as properties or with the argument + to `triggerAction`, or a combination: + + ```javascript + App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, { + target: Ember.computed.alias('controller'), + click: function() { + this.triggerAction({ + action: 'save' + }); // Sends the `save` action, along with a reference to `this`, + // to the current controller + } + }); + ``` + + @method triggerAction + @param opts {Hash} (optional, with the optional keys action, target and/or actionContext) + @return {Boolean} true if the action was sent successfully and did not return false + */ + triggerAction: function(opts) { + opts = opts || {}; + var action = opts.action || get(this, 'action'), + target = opts.target || get(this, 'targetObject'), + actionContext = opts.actionContext; + + function args(options, actionName) { + var ret = []; + if (actionName) { ret.push(actionName); } + + return ret.concat(options); + } + + if (typeof actionContext === 'undefined') { + actionContext = get(this, 'actionContextObject') || this; + } + + if (target && action) { + var ret; + + if (target.send) { + ret = target.send.apply(target, args(actionContext, action)); + } else { + Ember.assert("The action '" + action + "' did not exist on " + target, typeof target[action] === 'function'); + ret = target[action].apply(target, args(actionContext)); + } + + if (ret !== false) ret = true; + + return ret; + } else { + return false; + } + } + }); + + __exports__["default"] = TargetActionSupport; + }); +define("ember-runtime/system/application", + ["ember-runtime/system/namespace","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Namespace = __dependency1__["default"]; + + var Application = Namespace.extend(); + __exports__["default"] = Application; + }); +define("ember-runtime/system/array_proxy", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/computed","ember-metal/mixin","ember-metal/property_events","ember-metal/error","ember-runtime/system/object","ember-runtime/mixins/mutable_array","ember-runtime/mixins/enumerable","ember-runtime/system/string","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.K, Ember.assert + var get = __dependency2__.get; + var set = __dependency3__.set; + var isArray = __dependency4__.isArray; + var apply = __dependency4__.apply; + var computed = __dependency5__.computed; + var beforeObserver = __dependency6__.beforeObserver; + var observer = __dependency6__.observer; + var beginPropertyChanges = __dependency7__.beginPropertyChanges; + var endPropertyChanges = __dependency7__.endPropertyChanges; + var EmberError = __dependency8__["default"]; + var EmberObject = __dependency9__["default"];var MutableArray = __dependency10__["default"];var Enumerable = __dependency11__["default"]; + var fmt = __dependency12__.fmt; + + /** + @module ember + @submodule ember-runtime + */ + + var OUT_OF_RANGE_EXCEPTION = "Index out of range"; + var EMPTY = []; + var alias = computed.alias; + var K = Ember.K; + + /** + An ArrayProxy wraps any other object that implements `Ember.Array` and/or + `Ember.MutableArray,` forwarding all requests. This makes it very useful for + a number of binding use cases or other cases where being able to swap + out the underlying array is useful. + + A simple example of usage: + + ```javascript + var pets = ['dog', 'cat', 'fish']; + var ap = Ember.ArrayProxy.create({ content: Ember.A(pets) }); + + ap.get('firstObject'); // 'dog' + ap.set('content', ['amoeba', 'paramecium']); + ap.get('firstObject'); // 'amoeba' + ``` + + This class can also be useful as a layer to transform the contents of + an array, as they are accessed. This can be done by overriding + `objectAtContent`: + + ```javascript + var pets = ['dog', 'cat', 'fish']; + var ap = Ember.ArrayProxy.create({ + content: Ember.A(pets), + objectAtContent: function(idx) { + return this.get('content').objectAt(idx).toUpperCase(); + } + }); + + ap.get('firstObject'); // . 'DOG' + ``` + + @class ArrayProxy + @namespace Ember + @extends Ember.Object + @uses Ember.MutableArray + */ + var ArrayProxy = EmberObject.extend(MutableArray, { + + /** + The content array. Must be an object that implements `Ember.Array` and/or + `Ember.MutableArray.` + + @property content + @type Ember.Array + */ + content: null, + + /** + The array that the proxy pretends to be. In the default `ArrayProxy` + implementation, this and `content` are the same. Subclasses of `ArrayProxy` + can override this property to provide things like sorting and filtering. + + @property arrangedContent + */ + arrangedContent: alias('content'), + + /** + Should actually retrieve the object at the specified index from the + content. You can override this method in subclasses to transform the + content item to something new. + + This method will only be called if content is non-`null`. + + @method objectAtContent + @param {Number} idx The index to retrieve. + @return {Object} the value or undefined if none found + */ + objectAtContent: function(idx) { + return get(this, 'arrangedContent').objectAt(idx); + }, + + /** + Should actually replace the specified objects on the content array. + You can override this method in subclasses to transform the content item + into something new. + + This method will only be called if content is non-`null`. + + @method replaceContent + @param {Number} idx The starting index + @param {Number} amt The number of items to remove from the content. + @param {Array} objects Optional array of objects to insert or null if no + objects. + @return {void} + */ + replaceContent: function(idx, amt, objects) { + get(this, 'content').replace(idx, amt, objects); + }, + + /** + Invoked when the content property is about to change. Notifies observers that the + entire array content will change. + + @private + @method _contentWillChange + */ + _contentWillChange: beforeObserver('content', function() { + this._teardownContent(); + }), + + _teardownContent: function() { + var content = get(this, 'content'); + + if (content) { + content.removeArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + } + }, + + contentArrayWillChange: K, + contentArrayDidChange: K, + + /** + Invoked when the content property changes. Notifies observers that the + entire array content has changed. + + @private + @method _contentDidChange + */ + _contentDidChange: observer('content', function() { + var content = get(this, 'content'); + + Ember.assert("Can't set ArrayProxy's content to itself", content !== this); + + this._setupContent(); + }), + + _setupContent: function() { + var content = get(this, 'content'); + + if (content) { + Ember.assert(fmt('ArrayProxy expects an Array or ' + + 'Ember.ArrayProxy, but you passed %@', [typeof content]), + isArray(content) || content.isDestroyed); + + content.addArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + } + }, + + _arrangedContentWillChange: beforeObserver('arrangedContent', function() { + var arrangedContent = get(this, 'arrangedContent'), + len = arrangedContent ? get(arrangedContent, 'length') : 0; + + this.arrangedContentArrayWillChange(this, 0, len, undefined); + this.arrangedContentWillChange(this); + + this._teardownArrangedContent(arrangedContent); + }), + + _arrangedContentDidChange: observer('arrangedContent', function() { + var arrangedContent = get(this, 'arrangedContent'), + len = arrangedContent ? get(arrangedContent, 'length') : 0; + + Ember.assert("Can't set ArrayProxy's content to itself", arrangedContent !== this); + + this._setupArrangedContent(); + + this.arrangedContentDidChange(this); + this.arrangedContentArrayDidChange(this, 0, undefined, len); + }), + + _setupArrangedContent: function() { + var arrangedContent = get(this, 'arrangedContent'); + + if (arrangedContent) { + Ember.assert(fmt('ArrayProxy expects an Array or ' + + 'Ember.ArrayProxy, but you passed %@', [typeof arrangedContent]), + isArray(arrangedContent) || arrangedContent.isDestroyed); + + arrangedContent.addArrayObserver(this, { + willChange: 'arrangedContentArrayWillChange', + didChange: 'arrangedContentArrayDidChange' + }); + } + }, + + _teardownArrangedContent: function() { + var arrangedContent = get(this, 'arrangedContent'); + + if (arrangedContent) { + arrangedContent.removeArrayObserver(this, { + willChange: 'arrangedContentArrayWillChange', + didChange: 'arrangedContentArrayDidChange' + }); + } + }, + + arrangedContentWillChange: K, + arrangedContentDidChange: K, + + objectAt: function(idx) { + return get(this, 'content') && this.objectAtContent(idx); + }, + + length: computed(function() { + var arrangedContent = get(this, 'arrangedContent'); + return arrangedContent ? get(arrangedContent, 'length') : 0; + // No dependencies since Enumerable notifies length of change + }), + + _replace: function(idx, amt, objects) { + var content = get(this, 'content'); + Ember.assert('The content property of '+ this.constructor + ' should be set before modifying it', content); + if (content) this.replaceContent(idx, amt, objects); + return this; + }, + + replace: function() { + if (get(this, 'arrangedContent') === get(this, 'content')) { + apply(this, this._replace, arguments); + } else { + throw new EmberError("Using replace on an arranged ArrayProxy is not allowed."); + } + }, + + _insertAt: function(idx, object) { + if (idx > get(this, 'content.length')) throw new EmberError(OUT_OF_RANGE_EXCEPTION); + this._replace(idx, 0, [object]); + return this; + }, + + insertAt: function(idx, object) { + if (get(this, 'arrangedContent') === get(this, 'content')) { + return this._insertAt(idx, object); + } else { + throw new EmberError("Using insertAt on an arranged ArrayProxy is not allowed."); + } + }, + + removeAt: function(start, len) { + if ('number' === typeof start) { + var content = get(this, 'content'), + arrangedContent = get(this, 'arrangedContent'), + indices = [], i; + + if ((start < 0) || (start >= get(this, 'length'))) { + throw new EmberError(OUT_OF_RANGE_EXCEPTION); + } + + if (len === undefined) len = 1; + + // Get a list of indices in original content to remove + for (i=start; i= 0) { + var baseValue = this[keyName]; + + if (baseValue) { + if ('function' === typeof baseValue.concat) { + value = baseValue.concat(value); + } else { + value = makeArray(baseValue).concat(value); + } + } else { + value = makeArray(value); + } + } + + if (desc) { + desc.set(this, keyName, value); + } else { + if (typeof this.setUnknownProperty === 'function' && !(keyName in this)) { + this.setUnknownProperty(keyName, value); + } else if (MANDATORY_SETTER) { + defineProperty(this, keyName, null, value); // setup mandatory setter + } else { + this[keyName] = value; + } + } + } + } + } + finishPartial(this, m); + apply(this, this.init, arguments); + m.proto = proto; + finishChains(this); + sendEvent(this, "init"); + }; + + Class.toString = Mixin.prototype.toString; + Class.willReopen = function() { + if (wasApplied) { + Class.PrototypeMixin = Mixin.create(Class.PrototypeMixin); + } + + wasApplied = false; + }; + Class._initMixins = function(args) { initMixins = args; }; + Class._initProperties = function(args) { initProperties = args; }; + + Class.proto = function() { + var superclass = Class.superclass; + if (superclass) { superclass.proto(); } + + if (!wasApplied) { + wasApplied = true; + Class.PrototypeMixin.applyPartial(Class.prototype); + rewatch(Class.prototype); + } + + return this.prototype; + }; + + return Class; + + } + + /** + @class CoreObject + @namespace Ember + */ + var CoreObject = makeCtor(); + CoreObject.toString = function() { return "Ember.CoreObject"; }; + + CoreObject.PrototypeMixin = Mixin.create({ + reopen: function() { + applyMixin(this, arguments, true); + return this; + }, + + /** + An overridable method called when objects are instantiated. By default, + does nothing unless it is overridden during class definition. + + Example: + + ```javascript + App.Person = Ember.Object.extend({ + init: function() { + alert('Name is ' + this.get('name')); + } + }); + + var steve = App.Person.create({ + name: "Steve" + }); + + // alerts 'Name is Steve'. + ``` + + NOTE: If you do override `init` for a framework class like `Ember.View` or + `Ember.ArrayController`, be sure to call `this._super()` in your + `init` declaration! If you don't, Ember may not have an opportunity to + do important setup work, and you'll see strange behavior in your + application. + + @method init + */ + init: function() {}, + + /** + Defines the properties that will be concatenated from the superclass + (instead of overridden). + + By default, when you extend an Ember class a property defined in + the subclass overrides a property with the same name that is defined + in the superclass. However, there are some cases where it is preferable + to build up a property's value by combining the superclass' property + value with the subclass' value. An example of this in use within Ember + is the `classNames` property of `Ember.View`. + + Here is some sample code showing the difference between a concatenated + property and a normal one: + + ```javascript + App.BarView = Ember.View.extend({ + someNonConcatenatedProperty: ['bar'], + classNames: ['bar'] + }); + + App.FooBarView = App.BarView.extend({ + someNonConcatenatedProperty: ['foo'], + classNames: ['foo'], + }); + + var fooBarView = App.FooBarView.create(); + fooBarView.get('someNonConcatenatedProperty'); // ['foo'] + fooBarView.get('classNames'); // ['ember-view', 'bar', 'foo'] + ``` + + This behavior extends to object creation as well. Continuing the + above example: + + ```javascript + var view = App.FooBarView.create({ + someNonConcatenatedProperty: ['baz'], + classNames: ['baz'] + }) + view.get('someNonConcatenatedProperty'); // ['baz'] + view.get('classNames'); // ['ember-view', 'bar', 'foo', 'baz'] + ``` + Adding a single property that is not an array will just add it in the array: + + ```javascript + var view = App.FooBarView.create({ + classNames: 'baz' + }) + view.get('classNames'); // ['ember-view', 'bar', 'foo', 'baz'] + ``` + + Using the `concatenatedProperties` property, we can tell to Ember that mix + the content of the properties. + + In `Ember.View` the `classNameBindings` and `attributeBindings` properties + are also concatenated, in addition to `classNames`. + + This feature is available for you to use throughout the Ember object model, + although typical app developers are likely to use it infrequently. Since + it changes expectations about behavior of properties, you should properly + document its usage in each individual concatenated property (to not + mislead your users to think they can override the property in a subclass). + + @property concatenatedProperties + @type Array + @default null + */ + concatenatedProperties: null, + + /** + Destroyed object property flag. + + if this property is `true` the observers and bindings were already + removed by the effect of calling the `destroy()` method. + + @property isDestroyed + @default false + */ + isDestroyed: false, + + /** + Destruction scheduled flag. The `destroy()` method has been called. + + The object stays intact until the end of the run loop at which point + the `isDestroyed` flag is set. + + @property isDestroying + @default false + */ + isDestroying: false, + + /** + Destroys an object by setting the `isDestroyed` flag and removing its + metadata, which effectively destroys observers and bindings. + + If you try to set a property on a destroyed object, an exception will be + raised. + + Note that destruction is scheduled for the end of the run loop and does not + happen immediately. It will set an isDestroying flag immediately. + + @method destroy + @return {Ember.Object} receiver + */ + destroy: function() { + if (this.isDestroying) { return; } + this.isDestroying = true; + + schedule('actions', this, this.willDestroy); + schedule('destroy', this, this._scheduledDestroy); + return this; + }, + + /** + Override to implement teardown. + + @method willDestroy + */ + willDestroy: K, + + /** + Invoked by the run loop to actually destroy the object. This is + scheduled for execution by the `destroy` method. + + @private + @method _scheduledDestroy + */ + _scheduledDestroy: function() { + if (this.isDestroyed) { return; } + destroy(this); + this.isDestroyed = true; + }, + + bind: function(to, from) { + if (!(from instanceof Binding)) { from = Binding.from(from); } + from.to(to).connect(this); + return from; + }, + + /** + Returns a string representation which attempts to provide more information + than Javascript's `toString` typically does, in a generic way for all Ember + objects. + + ```javascript + App.Person = Em.Object.extend() + person = App.Person.create() + person.toString() //=> "" + ``` + + If the object's class is not defined on an Ember namespace, it will + indicate it is a subclass of the registered superclass: + + ```javascript + Student = App.Person.extend() + student = Student.create() + student.toString() //=> "<(subclass of App.Person):ember1025>" + ``` + + If the method `toStringExtension` is defined, its return value will be + included in the output. + + ```javascript + App.Teacher = App.Person.extend({ + toStringExtension: function() { + return this.get('fullName'); + } + }); + teacher = App.Teacher.create() + teacher.toString(); //=> "" + ``` + + @method toString + @return {String} string representation + */ + toString: function toString() { + var hasToStringExtension = typeof this.toStringExtension === 'function', + extension = hasToStringExtension ? ":" + this.toStringExtension() : ''; + var ret = '<'+this.constructor.toString()+':'+guidFor(this)+extension+'>'; + this.toString = makeToString(ret); + return ret; + } + }); + + CoreObject.PrototypeMixin.ownerConstructor = CoreObject; + + function makeToString(ret) { + return function() { return ret; }; + } + + if (Ember.config.overridePrototypeMixin) { + Ember.config.overridePrototypeMixin(CoreObject.PrototypeMixin); + } + + CoreObject.__super__ = null; + + var ClassMixin = Mixin.create({ + + ClassMixin: required(), + + PrototypeMixin: required(), + + isClass: true, + + isMethod: false, + + /** + Creates a new subclass. + + ```javascript + App.Person = Ember.Object.extend({ + say: function(thing) { + alert(thing); + } + }); + ``` + + This defines a new subclass of Ember.Object: `App.Person`. It contains one method: `say()`. + + You can also create a subclass from any existing class by calling its `extend()` method. For example, you might want to create a subclass of Ember's built-in `Ember.View` class: + + ```javascript + App.PersonView = Ember.View.extend({ + tagName: 'li', + classNameBindings: ['isAdministrator'] + }); + ``` + + When defining a subclass, you can override methods but still access the implementation of your parent class by calling the special `_super()` method: + + ```javascript + App.Person = Ember.Object.extend({ + say: function(thing) { + var name = this.get('name'); + alert(name + ' says: ' + thing); + } + }); + + App.Soldier = App.Person.extend({ + say: function(thing) { + this._super(thing + ", sir!"); + }, + march: function(numberOfHours) { + alert(this.get('name') + ' marches for ' + numberOfHours + ' hours.') + } + }); + + var yehuda = App.Soldier.create({ + name: "Yehuda Katz" + }); + + yehuda.say("Yes"); // alerts "Yehuda Katz says: Yes, sir!" + ``` + + The `create()` on line #17 creates an *instance* of the `App.Soldier` class. The `extend()` on line #8 creates a *subclass* of `App.Person`. Any instance of the `App.Person` class will *not* have the `march()` method. + + You can also pass `Mixin` classes to add additional properties to the subclass. + + ```javascript + App.Person = Ember.Object.extend({ + say: function(thing) { + alert(this.get('name') + ' says: ' + thing); + } + }); + + App.SingingMixin = Mixin.create({ + sing: function(thing){ + alert(this.get('name') + ' sings: la la la ' + thing); + } + }); + + App.BroadwayStar = App.Person.extend(App.SingingMixin, { + dance: function() { + alert(this.get('name') + ' dances: tap tap tap tap '); + } + }); + ``` + + The `App.BroadwayStar` class contains three methods: `say()`, `sing()`, and `dance()`. + + @method extend + @static + + @param {Mixin} [mixins]* One or more Mixin classes + @param {Object} [arguments]* Object containing values to use within the new class + */ + extend: function() { + var Class = makeCtor(), proto; + Class.ClassMixin = Mixin.create(this.ClassMixin); + Class.PrototypeMixin = Mixin.create(this.PrototypeMixin); + + Class.ClassMixin.ownerConstructor = Class; + Class.PrototypeMixin.ownerConstructor = Class; + + reopen.apply(Class.PrototypeMixin, arguments); + + Class.superclass = this; + Class.__super__ = this.prototype; + + proto = Class.prototype = o_create(this.prototype); + proto.constructor = Class; + generateGuid(proto); + meta(proto).proto = proto; // this will disable observers on prototype + + Class.ClassMixin.apply(Class); + return Class; + }, + + /** + Equivalent to doing `extend(arguments).create()`. + If possible use the normal `create` method instead. + + @method createWithMixins + @static + @param [arguments]* + */ + createWithMixins: function() { + var C = this; + if (arguments.length>0) { this._initMixins(arguments); } + return new C(); + }, + + /** + Creates an instance of a class. Accepts either no arguments, or an object + containing values to initialize the newly instantiated object with. + + ```javascript + App.Person = Ember.Object.extend({ + helloWorld: function() { + alert("Hi, my name is " + this.get('name')); + } + }); + + var tom = App.Person.create({ + name: 'Tom Dale' + }); + + tom.helloWorld(); // alerts "Hi, my name is Tom Dale". + ``` + + `create` will call the `init` function if defined during + `Ember.AnyObject.extend` + + If no arguments are passed to `create`, it will not set values to the new + instance during initialization: + + ```javascript + var noName = App.Person.create(); + noName.helloWorld(); // alerts undefined + ``` + + NOTE: For performance reasons, you cannot declare methods or computed + properties during `create`. You should instead declare methods and computed + properties when using `extend` or use the `createWithMixins` shorthand. + + @method create + @static + @param [arguments]* + */ + create: function() { + var C = this; + if (arguments.length>0) { this._initProperties(arguments); } + return new C(); + }, + + /** + Augments a constructor's prototype with additional + properties and functions: + + ```javascript + MyObject = Ember.Object.extend({ + name: 'an object' + }); + + o = MyObject.create(); + o.get('name'); // 'an object' + + MyObject.reopen({ + say: function(msg){ + console.log(msg); + } + }) + + o2 = MyObject.create(); + o2.say("hello"); // logs "hello" + + o.say("goodbye"); // logs "goodbye" + ``` + + To add functions and properties to the constructor itself, + see `reopenClass` + + @method reopen + */ + reopen: function() { + this.willReopen(); + apply(this.PrototypeMixin, reopen, arguments); + return this; + }, + + /** + Augments a constructor's own properties and functions: + + ```javascript + MyObject = Ember.Object.extend({ + name: 'an object' + }); + + MyObject.reopenClass({ + canBuild: false + }); + + MyObject.canBuild; // false + o = MyObject.create(); + ``` + + In other words, this creates static properties and functions for the class. These are only available on the class + and not on any instance of that class. + + ```javascript + App.Person = Ember.Object.extend({ + name : "", + sayHello : function(){ + alert("Hello. My name is " + this.get('name')); + } + }); + + App.Person.reopenClass({ + species : "Homo sapiens", + createPerson: function(newPersonsName){ + return App.Person.create({ + name:newPersonsName + }); + } + }); + + var tom = App.Person.create({ + name : "Tom Dale" + }); + var yehuda = App.Person.createPerson("Yehuda Katz"); + + tom.sayHello(); // "Hello. My name is Tom Dale" + yehuda.sayHello(); // "Hello. My name is Yehuda Katz" + alert(App.Person.species); // "Homo sapiens" + ``` + + Note that `species` and `createPerson` are *not* valid on the `tom` and `yehuda` + variables. They are only valid on `App.Person`. + + To add functions and properties to instances of + a constructor by extending the constructor's prototype + see `reopen` + + @method reopenClass + */ + reopenClass: function() { + apply(this.ClassMixin, reopen, arguments); + applyMixin(this, arguments, false); + return this; + }, + + detect: function(obj) { + if ('function' !== typeof obj) { return false; } + while(obj) { + if (obj===this) { return true; } + obj = obj.superclass; + } + return false; + }, + + detectInstance: function(obj) { + return obj instanceof this; + }, + + /** + In some cases, you may want to annotate computed properties with additional + metadata about how they function or what values they operate on. For + example, computed property functions may close over variables that are then + no longer available for introspection. + + You can pass a hash of these values to a computed property like this: + + ```javascript + person: function() { + var personId = this.get('personId'); + return App.Person.create({ id: personId }); + }.property().meta({ type: App.Person }) + ``` + + Once you've done this, you can retrieve the values saved to the computed + property from your class like this: + + ```javascript + MyClass.metaForProperty('person'); + ``` + + This will return the original hash that was passed to `meta()`. + + @method metaForProperty + @param key {String} property name + */ + metaForProperty: function(key) { + var meta = this.proto()[META_KEY], + desc = meta && meta.descs[key]; + + Ember.assert("metaForProperty() could not find a computed property with key '"+key+"'.", !!desc && desc instanceof ComputedProperty); + return desc._meta || {}; + }, + + /** + Iterate over each computed property for the class, passing its name + and any associated metadata (see `metaForProperty`) to the callback. + + @method eachComputedProperty + @param {Function} callback + @param {Object} binding + */ + eachComputedProperty: function(callback, binding) { + var proto = this.proto(), + descs = meta(proto).descs, + empty = {}, + property; + + for (var name in descs) { + property = descs[name]; + + if (property instanceof ComputedProperty) { + callback.call(binding || this, name, property._meta || empty); + } + } + } + + }); + + ClassMixin.ownerConstructor = CoreObject; + + if (Ember.config.overrideClassMixin) { + Ember.config.overrideClassMixin(ClassMixin); + } + + CoreObject.ClassMixin = ClassMixin; + ClassMixin.apply(CoreObject); + + __exports__["default"] = CoreObject; + }); +define("ember-runtime/system/deferred", + ["ember-runtime/mixins/deferred","ember-metal/property_get","ember-runtime/system/object","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var DeferredMixin = __dependency1__["default"]; + var get = __dependency2__.get; + var EmberObject = __dependency3__["default"]; + + var Deferred = EmberObject.extend(DeferredMixin); + + Deferred.reopenClass({ + promise: function(callback, binding) { + var deferred = Deferred.create(); + callback.call(binding, deferred); + return deferred; + } + }); + + __exports__["default"] = Deferred; + }); +define("ember-runtime/system/each_proxy", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/enumerable_utils","ember-metal/array","ember-runtime/mixins/array","ember-runtime/system/object","ember-metal/computed","ember-metal/observer","ember-metal/events","ember-metal/properties","ember-metal/property_events","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var Ember = __dependency1__["default"]; + // Ember.assert + + var get = __dependency2__.get; + var set = __dependency3__.set; + var guidFor = __dependency4__.guidFor; + var EnumerableUtils = __dependency5__["default"]; + var indexOf = __dependency6__.indexOf; + var EmberArray = __dependency7__["default"]; + // ES6TODO: WAT? Circular dep? + var EmberObject = __dependency8__["default"]; + var computed = __dependency9__.computed; + var addObserver = __dependency10__.addObserver; + var addBeforeObserver = __dependency10__.addBeforeObserver; + var removeBeforeObserver = __dependency10__.removeBeforeObserver; + var removeObserver = __dependency10__.removeObserver; + var typeOf = __dependency4__.typeOf; + var watchedEvents = __dependency11__.watchedEvents; + var defineProperty = __dependency12__.defineProperty; + var beginPropertyChanges = __dependency13__.beginPropertyChanges; + var propertyDidChange = __dependency13__.propertyDidChange; + var propertyWillChange = __dependency13__.propertyWillChange; + var endPropertyChanges = __dependency13__.endPropertyChanges; + var changeProperties = __dependency13__.changeProperties; + + var forEach = EnumerableUtils.forEach; + + var EachArray = EmberObject.extend(EmberArray, { + + init: function(content, keyName, owner) { + this._super(); + this._keyName = keyName; + this._owner = owner; + this._content = content; + }, + + objectAt: function(idx) { + var item = this._content.objectAt(idx); + return item && get(item, this._keyName); + }, + + length: computed(function() { + var content = this._content; + return content ? get(content, 'length') : 0; + }) + + }); + + var IS_OBSERVER = /^.+:(before|change)$/; + + function addObserverForContentKey(content, keyName, proxy, idx, loc) { + var objects = proxy._objects, guid; + if (!objects) objects = proxy._objects = {}; + + while(--loc>=idx) { + var item = content.objectAt(loc); + if (item) { + Ember.assert('When using @each to observe the array ' + content + ', the array must return an object', typeOf(item) === 'instance' || typeOf(item) === 'object'); + addBeforeObserver(item, keyName, proxy, 'contentKeyWillChange'); + addObserver(item, keyName, proxy, 'contentKeyDidChange'); + + // keep track of the index each item was found at so we can map + // it back when the obj changes. + guid = guidFor(item); + if (!objects[guid]) objects[guid] = []; + objects[guid].push(loc); + } + } + } + + function removeObserverForContentKey(content, keyName, proxy, idx, loc) { + var objects = proxy._objects; + if (!objects) objects = proxy._objects = {}; + var indicies, guid; + + while(--loc>=idx) { + var item = content.objectAt(loc); + if (item) { + removeBeforeObserver(item, keyName, proxy, 'contentKeyWillChange'); + removeObserver(item, keyName, proxy, 'contentKeyDidChange'); + + guid = guidFor(item); + indicies = objects[guid]; + indicies[indexOf.call(indicies, loc)] = null; + } + } + } + + /** + This is the object instance returned when you get the `@each` property on an + array. It uses the unknownProperty handler to automatically create + EachArray instances for property names. + + @private + @class EachProxy + @namespace Ember + @extends Ember.Object + */ + var EachProxy = EmberObject.extend({ + + init: function(content) { + this._super(); + this._content = content; + content.addArrayObserver(this); + + // in case someone is already observing some keys make sure they are + // added + forEach(watchedEvents(this), function(eventName) { + this.didAddListener(eventName); + }, this); + }, + + /** + You can directly access mapped properties by simply requesting them. + The `unknownProperty` handler will generate an EachArray of each item. + + @method unknownProperty + @param keyName {String} + @param value {*} + */ + unknownProperty: function(keyName, value) { + var ret; + ret = new EachArray(this._content, keyName, this); + defineProperty(this, keyName, null, ret); + this.beginObservingContentKey(keyName); + return ret; + }, + + // .......................................................... + // ARRAY CHANGES + // Invokes whenever the content array itself changes. + + arrayWillChange: function(content, idx, removedCnt, addedCnt) { + var keys = this._keys, key, lim; + + lim = removedCnt>0 ? idx+removedCnt : -1; + beginPropertyChanges(this); + + for(key in keys) { + if (!keys.hasOwnProperty(key)) { continue; } + + if (lim>0) { removeObserverForContentKey(content, key, this, idx, lim); } + + propertyWillChange(this, key); + } + + propertyWillChange(this._content, '@each'); + endPropertyChanges(this); + }, + + arrayDidChange: function(content, idx, removedCnt, addedCnt) { + var keys = this._keys, lim; + + lim = addedCnt>0 ? idx+addedCnt : -1; + changeProperties(function() { + for(var key in keys) { + if (!keys.hasOwnProperty(key)) { continue; } + + if (lim>0) { addObserverForContentKey(content, key, this, idx, lim); } + + propertyDidChange(this, key); + } + + propertyDidChange(this._content, '@each'); + }, this); + }, + + // .......................................................... + // LISTEN FOR NEW OBSERVERS AND OTHER EVENT LISTENERS + // Start monitoring keys based on who is listening... + + didAddListener: function(eventName) { + if (IS_OBSERVER.test(eventName)) { + this.beginObservingContentKey(eventName.slice(0, -7)); + } + }, + + didRemoveListener: function(eventName) { + if (IS_OBSERVER.test(eventName)) { + this.stopObservingContentKey(eventName.slice(0, -7)); + } + }, + + // .......................................................... + // CONTENT KEY OBSERVING + // Actual watch keys on the source content. + + beginObservingContentKey: function(keyName) { + var keys = this._keys; + if (!keys) keys = this._keys = {}; + if (!keys[keyName]) { + keys[keyName] = 1; + var content = this._content, + len = get(content, 'length'); + addObserverForContentKey(content, keyName, this, 0, len); + } else { + keys[keyName]++; + } + }, + + stopObservingContentKey: function(keyName) { + var keys = this._keys; + if (keys && (keys[keyName]>0) && (--keys[keyName]<=0)) { + var content = this._content, + len = get(content, 'length'); + removeObserverForContentKey(content, keyName, this, 0, len); + } + }, + + contentKeyWillChange: function(obj, keyName) { + propertyWillChange(this, keyName); + }, + + contentKeyDidChange: function(obj, keyName) { + propertyDidChange(this, keyName); + } + + }); + + __exports__.EachArray = EachArray; + __exports__.EachProxy = EachProxy; + }); +define("ember-runtime/system/lazy_load", + ["ember-metal/core","ember-metal/array","ember-runtime/system/native_array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + /*globals CustomEvent */ + + var Ember = __dependency1__["default"]; + // Ember.ENV.EMBER_LOAD_HOOKS + var forEach = __dependency2__.forEach; + // make sure Ember.A is setup. + + /** + @module ember + @submodule ember-runtime + */ + + var loadHooks = Ember.ENV.EMBER_LOAD_HOOKS || {}; + var loaded = {}; + + /** + Detects when a specific package of Ember (e.g. 'Ember.Handlebars') + has fully loaded and is available for extension. + + The provided `callback` will be called with the `name` passed + resolved from a string into the object: + + ``` javascript + Ember.onLoad('Ember.Handlebars' function(hbars){ + hbars.registerHelper(...); + }); + ``` + + @method onLoad + @for Ember + @param name {String} name of hook + @param callback {Function} callback to be called + */ + function onLoad(name, callback) { + var object; + + loadHooks[name] = loadHooks[name] || Ember.A(); + loadHooks[name].pushObject(callback); + + if (object = loaded[name]) { + callback(object); + } + }; + + /** + Called when an Ember.js package (e.g Ember.Handlebars) has finished + loading. Triggers any callbacks registered for this event. + + @method runLoadHooks + @for Ember + @param name {String} name of hook + @param object {Object} object to pass to callbacks + */ + function runLoadHooks(name, object) { + loaded[name] = object; + + if (typeof window === 'object' && typeof window.dispatchEvent === 'function' && typeof CustomEvent === "function") { + var event = new CustomEvent(name, {detail: object, name: name}); + window.dispatchEvent(event); + } + + if (loadHooks[name]) { + forEach.call(loadHooks[name], function(callback) { + callback(object); + }); + } + }; + + __exports__.onLoad = onLoad; + __exports__.runLoadHooks = runLoadHooks; + }); +define("ember-runtime/system/namespace", + ["ember-metal/core","ember-metal/property_get","ember-metal/array","ember-metal/utils","ember-metal/mixin","ember-runtime/system/object","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + // Ember.lookup, Ember.BOOTED, Ember.deprecate, Ember.NAME_KEY, Ember.anyUnprocessedMixins + var Ember = __dependency1__["default"]; + var get = __dependency2__.get; + var indexOf = __dependency3__.indexOf; + var GUID_KEY = __dependency4__.GUID_KEY; + var guidFor = __dependency4__.guidFor; + var Mixin = __dependency5__.Mixin; + + var EmberObject = __dependency6__["default"]; + + /** + A Namespace is an object usually used to contain other objects or methods + such as an application or framework. Create a namespace anytime you want + to define one of these new containers. + + # Example Usage + + ```javascript + MyFramework = Ember.Namespace.create({ + VERSION: '1.0.0' + }); + ``` + + @class Namespace + @namespace Ember + @extends Ember.Object + */ + var Namespace = EmberObject.extend({ + isNamespace: true, + + init: function() { + Namespace.NAMESPACES.push(this); + Namespace.PROCESSED = false; + }, + + toString: function() { + var name = get(this, 'name'); + if (name) { return name; } + + findNamespaces(); + return this[GUID_KEY+'_name']; + }, + + nameClasses: function() { + processNamespace([this.toString()], this, {}); + }, + + destroy: function() { + var namespaces = Namespace.NAMESPACES, + toString = this.toString(); + + if (toString) { + Ember.lookup[toString] = undefined; + delete Namespace.NAMESPACES_BY_ID[toString]; + } + namespaces.splice(indexOf.call(namespaces, this), 1); + this._super(); + } + }); + + Namespace.reopenClass({ + NAMESPACES: [Ember], + NAMESPACES_BY_ID: {}, + PROCESSED: false, + processAll: processAllNamespaces, + byName: function(name) { + if (!Ember.BOOTED) { + processAllNamespaces(); + } + + return NAMESPACES_BY_ID[name]; + } + }); + + var NAMESPACES_BY_ID = Namespace.NAMESPACES_BY_ID; + + var hasOwnProp = ({}).hasOwnProperty; + + function processNamespace(paths, root, seen) { + var idx = paths.length; + + NAMESPACES_BY_ID[paths.join('.')] = root; + + // Loop over all of the keys in the namespace, looking for classes + for(var key in root) { + if (!hasOwnProp.call(root, key)) { continue; } + var obj = root[key]; + + // If we are processing the `Ember` namespace, for example, the + // `paths` will start with `["Ember"]`. Every iteration through + // the loop will update the **second** element of this list with + // the key, so processing `Ember.View` will make the Array + // `['Ember', 'View']`. + paths[idx] = key; + + // If we have found an unprocessed class + if (obj && obj.toString === classToString) { + // Replace the class' `toString` with the dot-separated path + // and set its `NAME_KEY` + obj.toString = makeToString(paths.join('.')); + obj[NAME_KEY] = paths.join('.'); + + // Support nested namespaces + } else if (obj && obj.isNamespace) { + // Skip aliased namespaces + if (seen[guidFor(obj)]) { continue; } + seen[guidFor(obj)] = true; + + // Process the child namespace + processNamespace(paths, obj, seen); + } + } + + paths.length = idx; // cut out last item + } + + function findNamespaces() { + var lookup = Ember.lookup, obj, isNamespace; + + if (Namespace.PROCESSED) { return; } + + for (var prop in lookup) { + // These don't raise exceptions but can cause warnings + if (prop === "parent" || prop === "top" || prop === "frameElement" || prop === "webkitStorageInfo") { continue; } + + // get(window.globalStorage, 'isNamespace') would try to read the storage for domain isNamespace and cause exception in Firefox. + // globalStorage is a storage obsoleted by the WhatWG storage specification. See https://developer.mozilla.org/en/DOM/Storage#globalStorage + if (prop === "globalStorage" && lookup.StorageList && lookup.globalStorage instanceof lookup.StorageList) { continue; } + // Unfortunately, some versions of IE don't support window.hasOwnProperty + if (lookup.hasOwnProperty && !lookup.hasOwnProperty(prop)) { continue; } + + // At times we are not allowed to access certain properties for security reasons. + // There are also times where even if we can access them, we are not allowed to access their properties. + try { + obj = Ember.lookup[prop]; + isNamespace = obj && obj.isNamespace; + } catch (e) { + continue; + } + + if (isNamespace) { + Ember.deprecate("Namespaces should not begin with lowercase.", /^[A-Z]/.test(prop)); + obj[NAME_KEY] = prop; + } + } + } + + var NAME_KEY = Ember.NAME_KEY = GUID_KEY + '_name'; + + function superClassString(mixin) { + var superclass = mixin.superclass; + if (superclass) { + if (superclass[NAME_KEY]) { return superclass[NAME_KEY]; } + else { return superClassString(superclass); } + } else { + return; + } + } + + function classToString() { + if (!Ember.BOOTED && !this[NAME_KEY]) { + processAllNamespaces(); + } + + var ret; + + if (this[NAME_KEY]) { + ret = this[NAME_KEY]; + } else if (this._toString) { + ret = this._toString; + } else { + var str = superClassString(this); + if (str) { + ret = "(subclass of " + str + ")"; + } else { + ret = "(unknown mixin)"; + } + this.toString = makeToString(ret); + } + + return ret; + } + + function processAllNamespaces() { + var unprocessedNamespaces = !Namespace.PROCESSED, + unprocessedMixins = Ember.anyUnprocessedMixins; + + if (unprocessedNamespaces) { + findNamespaces(); + Namespace.PROCESSED = true; + } + + if (unprocessedNamespaces || unprocessedMixins) { + var namespaces = Namespace.NAMESPACES, namespace; + for (var i=0, l=namespaces.length; i=0;idx--) { + if (this[idx] === object) return idx ; + } + return -1; + }, + + copy: function(deep) { + if (deep) { + return this.map(function(item) { return copy(item, true); }); + } + + return this.slice(); + } + }); + + // Remove any methods implemented natively so we don't override them + var ignore = ['length']; + forEach(NativeArray.keys(), function(methodName) { + if (Array.prototype[methodName]) ignore.push(methodName); + }); + + if (ignore.length>0) { + NativeArray = NativeArray.without.apply(NativeArray, ignore); + } + + /** + Creates an `Ember.NativeArray` from an Array like object. + Does not modify the original object. Ember.A is not needed if + `Ember.EXTEND_PROTOTYPES` is `true` (the default value). However, + it is recommended that you use Ember.A when creating addons for + ember or when you can not guarantee that `Ember.EXTEND_PROTOTYPES` + will be `true`. + + Example + + ```js + var Pagination = Ember.CollectionView.extend({ + tagName: 'ul', + classNames: ['pagination'], + init: function() { + this._super(); + if (!this.get('content')) { + this.set('content', Ember.A([])); + } + } + }); + ``` + + @method A + @for Ember + @return {Ember.NativeArray} + */ + var A = function(arr) { + if (arr === undefined) { arr = []; } + return EmberArray.detect(arr) ? arr : NativeArray.apply(arr); + }; + + /** + Activates the mixin on the Array.prototype if not already applied. Calling + this method more than once is safe. This will be called when ember is loaded + unless you have `Ember.EXTEND_PROTOTYPES` or `Ember.EXTEND_PROTOTYPES.Array` + set to `false`. + + Example + + ```js + if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.Array) { + Ember.NativeArray.activate(); + } + ``` + + @method activate + @for Ember.NativeArray + @static + @return {void} + */ + NativeArray.activate = function() { + NativeArray.apply(Array.prototype); + + A = function(arr) { return arr || []; }; + }; + + if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.Array) { + NativeArray.activate(); + } + + Ember.A = A; // ES6TODO: Setting A onto the object returned by ember-metal/core to avoid circles + __exports__.A = A; + __exports__.NativeArray = NativeArray;__exports__["default"] = NativeArray; + }); +define("ember-runtime/system/object", + ["ember-runtime/system/core_object","ember-runtime/mixins/observable","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + + var CoreObject = __dependency1__["default"]; + var Observable = __dependency2__["default"]; + + /** + `Ember.Object` is the main base class for all Ember objects. It is a subclass + of `Ember.CoreObject` with the `Ember.Observable` mixin applied. For details, + see the documentation for each of these. + + @class Object + @namespace Ember + @extends Ember.CoreObject + @uses Ember.Observable + */ + var EmberObject = CoreObject.extend(Observable); + EmberObject.toString = function() { return "Ember.Object"; }; + + __exports__["default"] = EmberObject; + }); +define("ember-runtime/system/object_proxy", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/observer","ember-metal/property_events","ember-metal/computed","ember-metal/properties","ember-metal/mixin","ember-runtime/system/string","ember-runtime/system/object","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + var Ember = __dependency1__["default"]; + // Ember.assert + var get = __dependency2__.get; + var set = __dependency3__.set; + var meta = __dependency4__.meta; + var addObserver = __dependency5__.addObserver; + var removeObserver = __dependency5__.removeObserver; + var addBeforeObserver = __dependency5__.addBeforeObserver; + var removeBeforeObserver = __dependency5__.removeBeforeObserver; + var propertyWillChange = __dependency6__.propertyWillChange; + var propertyDidChange = __dependency6__.propertyDidChange; + var computed = __dependency7__.computed; + var defineProperty = __dependency8__.defineProperty; + var observer = __dependency9__.observer; + var fmt = __dependency10__.fmt; + var EmberObject = __dependency11__["default"]; + + function contentPropertyWillChange(content, contentKey) { + var key = contentKey.slice(8); // remove "content." + if (key in this) { return; } // if shadowed in proxy + propertyWillChange(this, key); + } + + function contentPropertyDidChange(content, contentKey) { + var key = contentKey.slice(8); // remove "content." + if (key in this) { return; } // if shadowed in proxy + propertyDidChange(this, key); + } + + /** + `Ember.ObjectProxy` forwards all properties not defined by the proxy itself + to a proxied `content` object. + + ```javascript + object = Ember.Object.create({ + name: 'Foo' + }); + + proxy = Ember.ObjectProxy.create({ + content: object + }); + + // Access and change existing properties + proxy.get('name') // 'Foo' + proxy.set('name', 'Bar'); + object.get('name') // 'Bar' + + // Create new 'description' property on `object` + proxy.set('description', 'Foo is a whizboo baz'); + object.get('description') // 'Foo is a whizboo baz' + ``` + + While `content` is unset, setting a property to be delegated will throw an + Error. + + ```javascript + proxy = Ember.ObjectProxy.create({ + content: null, + flag: null + }); + proxy.set('flag', true); + proxy.get('flag'); // true + proxy.get('foo'); // undefined + proxy.set('foo', 'data'); // throws Error + ``` + + Delegated properties can be bound to and will change when content is updated. + + Computed properties on the proxy itself can depend on delegated properties. + + ```javascript + ProxyWithComputedProperty = Ember.ObjectProxy.extend({ + fullName: function () { + var firstName = this.get('firstName'), + lastName = this.get('lastName'); + if (firstName && lastName) { + return firstName + ' ' + lastName; + } + return firstName || lastName; + }.property('firstName', 'lastName') + }); + + proxy = ProxyWithComputedProperty.create(); + + proxy.get('fullName'); // undefined + proxy.set('content', { + firstName: 'Tom', lastName: 'Dale' + }); // triggers property change for fullName on proxy + + proxy.get('fullName'); // 'Tom Dale' + ``` + + @class ObjectProxy + @namespace Ember + @extends Ember.Object + */ + var ObjectProxy = EmberObject.extend({ + /** + The object whose properties will be forwarded. + + @property content + @type Ember.Object + @default null + */ + content: null, + _contentDidChange: observer('content', function() { + Ember.assert("Can't set ObjectProxy's content to itself", get(this, 'content') !== this); + }), + + isTruthy: computed.bool('content'), + + _debugContainerKey: null, + + willWatchProperty: function (key) { + var contentKey = 'content.' + key; + addBeforeObserver(this, contentKey, null, contentPropertyWillChange); + addObserver(this, contentKey, null, contentPropertyDidChange); + }, + + didUnwatchProperty: function (key) { + var contentKey = 'content.' + key; + removeBeforeObserver(this, contentKey, null, contentPropertyWillChange); + removeObserver(this, contentKey, null, contentPropertyDidChange); + }, + + unknownProperty: function (key) { + var content = get(this, 'content'); + if (content) { + return get(content, key); + } + }, + + setUnknownProperty: function (key, value) { + var m = meta(this); + if (m.proto === this) { + // if marked as prototype then just defineProperty + // rather than delegate + defineProperty(this, key, null, value); + return value; + } + + var content = get(this, 'content'); + Ember.assert(fmt("Cannot delegate set('%@', %@) to the 'content' property of object proxy %@: its 'content' is undefined.", [key, value, this]), content); + return set(content, key, value); + } + + }); + + __exports__["default"] = ObjectProxy; + }); +define("ember-runtime/system/set", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/utils","ember-metal/is_none","ember-runtime/system/string","ember-runtime/system/core_object","ember-runtime/mixins/mutable_enumerable","ember-runtime/mixins/enumerable","ember-runtime/mixins/copyable","ember-runtime/mixins/freezable","ember-metal/error","ember-metal/property_events","ember-metal/mixin","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + var Ember = __dependency1__["default"]; + // Ember.isNone + + var get = __dependency2__.get; + var set = __dependency3__.set; + var guidFor = __dependency4__.guidFor; + var isNone = __dependency5__.isNone; + var fmt = __dependency6__.fmt; + var CoreObject = __dependency7__["default"]; + var MutableEnumerable = __dependency8__["default"]; + var Enumerable = __dependency9__["default"]; + var Copyable = __dependency10__["default"]; + var Freezable = __dependency11__.Freezable; + var FROZEN_ERROR = __dependency11__.FROZEN_ERROR; + var EmberError = __dependency12__["default"]; + var propertyWillChange = __dependency13__.propertyWillChange; + var propertyDidChange = __dependency13__.propertyDidChange; + var aliasMethod = __dependency14__.aliasMethod; + var computed = __dependency15__.computed; + + /** + An unordered collection of objects. + + A Set works a bit like an array except that its items are not ordered. You + can create a set to efficiently test for membership for an object. You can + also iterate through a set just like an array, even accessing objects by + index, however there is no guarantee as to their order. + + All Sets are observable via the Enumerable Observer API - which works + on any enumerable object including both Sets and Arrays. + + ## Creating a Set + + You can create a set like you would most objects using + `new Ember.Set()`. Most new sets you create will be empty, but you can + also initialize the set with some content by passing an array or other + enumerable of objects to the constructor. + + Finally, you can pass in an existing set and the set will be copied. You + can also create a copy of a set by calling `Ember.Set#copy()`. + + ```javascript + // creates a new empty set + var foundNames = new Ember.Set(); + + // creates a set with four names in it. + var names = new Ember.Set(["Charles", "Tom", "Juan", "Alex"]); // :P + + // creates a copy of the names set. + var namesCopy = new Ember.Set(names); + + // same as above. + var anotherNamesCopy = names.copy(); + ``` + + ## Adding/Removing Objects + + You generally add or remove objects from a set using `add()` or + `remove()`. You can add any type of object including primitives such as + numbers, strings, and booleans. + + Unlike arrays, objects can only exist one time in a set. If you call `add()` + on a set with the same object multiple times, the object will only be added + once. Likewise, calling `remove()` with the same object multiple times will + remove the object the first time and have no effect on future calls until + you add the object to the set again. + + NOTE: You cannot add/remove `null` or `undefined` to a set. Any attempt to do + so will be ignored. + + In addition to add/remove you can also call `push()`/`pop()`. Push behaves + just like `add()` but `pop()`, unlike `remove()` will pick an arbitrary + object, remove it and return it. This is a good way to use a set as a job + queue when you don't care which order the jobs are executed in. + + ## Testing for an Object + + To test for an object's presence in a set you simply call + `Ember.Set#contains()`. + + ## Observing changes + + When using `Ember.Set`, you can observe the `"[]"` property to be + alerted whenever the content changes. You can also add an enumerable + observer to the set to be notified of specific objects that are added and + removed from the set. See [Ember.Enumerable](/api/classes/Ember.Enumerable.html) + for more information on enumerables. + + This is often unhelpful. If you are filtering sets of objects, for instance, + it is very inefficient to re-filter all of the items each time the set + changes. It would be better if you could just adjust the filtered set based + on what was changed on the original set. The same issue applies to merging + sets, as well. + + ## Other Methods + + `Ember.Set` primary implements other mixin APIs. For a complete reference + on the methods you will use with `Ember.Set`, please consult these mixins. + The most useful ones will be `Ember.Enumerable` and + `Ember.MutableEnumerable` which implement most of the common iterator + methods you are used to on Array. + + Note that you can also use the `Ember.Copyable` and `Ember.Freezable` + APIs on `Ember.Set` as well. Once a set is frozen it can no longer be + modified. The benefit of this is that when you call `frozenCopy()` on it, + Ember will avoid making copies of the set. This allows you to write + code that can know with certainty when the underlying set data will or + will not be modified. + + @class Set + @namespace Ember + @extends Ember.CoreObject + @uses Ember.MutableEnumerable + @uses Ember.Copyable + @uses Ember.Freezable + @since Ember 0.9 + */ + var Set = CoreObject.extend(MutableEnumerable, Copyable, Freezable, + { + + // .......................................................... + // IMPLEMENT ENUMERABLE APIS + // + + /** + This property will change as the number of objects in the set changes. + + @property length + @type number + @default 0 + */ + length: 0, + + /** + Clears the set. This is useful if you want to reuse an existing set + without having to recreate it. + + ```javascript + var colors = new Ember.Set(["red", "green", "blue"]); + colors.length; // 3 + colors.clear(); + colors.length; // 0 + ``` + + @method clear + @return {Ember.Set} An empty Set + */ + clear: function() { + if (this.isFrozen) { throw new EmberError(FROZEN_ERROR); } + + var len = get(this, 'length'); + if (len === 0) { return this; } + + var guid; + + this.enumerableContentWillChange(len, 0); + propertyWillChange(this, 'firstObject'); + propertyWillChange(this, 'lastObject'); + + for (var i=0; i < len; i++) { + guid = guidFor(this[i]); + delete this[guid]; + delete this[i]; + } + + set(this, 'length', 0); + + propertyDidChange(this, 'firstObject'); + propertyDidChange(this, 'lastObject'); + this.enumerableContentDidChange(len, 0); + + return this; + }, + + /** + Returns true if the passed object is also an enumerable that contains the + same objects as the receiver. + + ```javascript + var colors = ["red", "green", "blue"], + same_colors = new Ember.Set(colors); + + same_colors.isEqual(colors); // true + same_colors.isEqual(["purple", "brown"]); // false + ``` + + @method isEqual + @param {Ember.Set} obj the other object. + @return {Boolean} + */ + isEqual: function(obj) { + // fail fast + if (!Enumerable.detect(obj)) return false; + + var loc = get(this, 'length'); + if (get(obj, 'length') !== loc) return false; + + while(--loc >= 0) { + if (!obj.contains(this[loc])) return false; + } + + return true; + }, + + /** + Adds an object to the set. Only non-`null` objects can be added to a set + and those can only be added once. If the object is already in the set or + the passed value is null this method will have no effect. + + This is an alias for `Ember.MutableEnumerable.addObject()`. + + ```javascript + var colors = new Ember.Set(); + colors.add("blue"); // ["blue"] + colors.add("blue"); // ["blue"] + colors.add("red"); // ["blue", "red"] + colors.add(null); // ["blue", "red"] + colors.add(undefined); // ["blue", "red"] + ``` + + @method add + @param {Object} obj The object to add. + @return {Ember.Set} The set itself. + */ + add: aliasMethod('addObject'), + + /** + Removes the object from the set if it is found. If you pass a `null` value + or an object that is already not in the set, this method will have no + effect. This is an alias for `Ember.MutableEnumerable.removeObject()`. + + ```javascript + var colors = new Ember.Set(["red", "green", "blue"]); + colors.remove("red"); // ["blue", "green"] + colors.remove("purple"); // ["blue", "green"] + colors.remove(null); // ["blue", "green"] + ``` + + @method remove + @param {Object} obj The object to remove + @return {Ember.Set} The set itself. + */ + remove: aliasMethod('removeObject'), + + /** + Removes the last element from the set and returns it, or `null` if it's empty. + + ```javascript + var colors = new Ember.Set(["green", "blue"]); + colors.pop(); // "blue" + colors.pop(); // "green" + colors.pop(); // null + ``` + + @method pop + @return {Object} The removed object from the set or null. + */ + pop: function() { + if (get(this, 'isFrozen')) throw new EmberError(FROZEN_ERROR); + var obj = this.length > 0 ? this[this.length-1] : null; + this.remove(obj); + return obj; + }, + + /** + Inserts the given object on to the end of the set. It returns + the set itself. + + This is an alias for `Ember.MutableEnumerable.addObject()`. + + ```javascript + var colors = new Ember.Set(); + colors.push("red"); // ["red"] + colors.push("green"); // ["red", "green"] + colors.push("blue"); // ["red", "green", "blue"] + ``` + + @method push + @return {Ember.Set} The set itself. + */ + push: aliasMethod('addObject'), + + /** + Removes the last element from the set and returns it, or `null` if it's empty. + + This is an alias for `Ember.Set.pop()`. + + ```javascript + var colors = new Ember.Set(["green", "blue"]); + colors.shift(); // "blue" + colors.shift(); // "green" + colors.shift(); // null + ``` + + @method shift + @return {Object} The removed object from the set or null. + */ + shift: aliasMethod('pop'), + + /** + Inserts the given object on to the end of the set. It returns + the set itself. + + This is an alias of `Ember.Set.push()` + + ```javascript + var colors = new Ember.Set(); + colors.unshift("red"); // ["red"] + colors.unshift("green"); // ["red", "green"] + colors.unshift("blue"); // ["red", "green", "blue"] + ``` + + @method unshift + @return {Ember.Set} The set itself. + */ + unshift: aliasMethod('push'), + + /** + Adds each object in the passed enumerable to the set. + + This is an alias of `Ember.MutableEnumerable.addObjects()` + + ```javascript + var colors = new Ember.Set(); + colors.addEach(["red", "green", "blue"]); // ["red", "green", "blue"] + ``` + + @method addEach + @param {Ember.Enumerable} objects the objects to add. + @return {Ember.Set} The set itself. + */ + addEach: aliasMethod('addObjects'), + + /** + Removes each object in the passed enumerable to the set. + + This is an alias of `Ember.MutableEnumerable.removeObjects()` + + ```javascript + var colors = new Ember.Set(["red", "green", "blue"]); + colors.removeEach(["red", "blue"]); // ["green"] + ``` + + @method removeEach + @param {Ember.Enumerable} objects the objects to remove. + @return {Ember.Set} The set itself. + */ + removeEach: aliasMethod('removeObjects'), + + // .......................................................... + // PRIVATE ENUMERABLE SUPPORT + // + + init: function(items) { + this._super(); + if (items) this.addObjects(items); + }, + + // implement Ember.Enumerable + nextObject: function(idx) { + return this[idx]; + }, + + // more optimized version + firstObject: computed(function() { + return this.length > 0 ? this[0] : undefined; + }), + + // more optimized version + lastObject: computed(function() { + return this.length > 0 ? this[this.length-1] : undefined; + }), + + // implements Ember.MutableEnumerable + addObject: function(obj) { + if (get(this, 'isFrozen')) throw new EmberError(FROZEN_ERROR); + if (isNone(obj)) return this; // nothing to do + + var guid = guidFor(obj), + idx = this[guid], + len = get(this, 'length'), + added ; + + if (idx>=0 && idx=0 && idx=0; + }, + + copy: function() { + var C = this.constructor, ret = new C(), loc = get(this, 'length'); + set(ret, 'length', loc); + while(--loc>=0) { + ret[loc] = this[loc]; + ret[guidFor(this[loc])] = loc; + } + return ret; + }, + + toString: function() { + var len = this.length, idx, array = []; + for(idx = 0; idx < len; idx++) { + array[idx] = this[idx]; + } + return fmt("Ember.Set<%@>", [array.join(',')]); + } + + }); + + + __exports__["default"] = Set; + }); +define("ember-runtime/system/string", + ["ember-metal/core","ember-metal/utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-runtime + */ + var Ember = __dependency1__["default"]; + // Ember.STRINGS, Ember.FEATURES + var EmberInspect = __dependency2__.inspect; + + + var STRING_DASHERIZE_REGEXP = (/[ _]/g); + var STRING_DASHERIZE_CACHE = {}; + var STRING_DECAMELIZE_REGEXP = (/([a-z\d])([A-Z])/g); + var STRING_CAMELIZE_REGEXP = (/(\-|_|\.|\s)+(.)?/g); + var STRING_UNDERSCORE_REGEXP_1 = (/([a-z\d])([A-Z]+)/g); + var STRING_UNDERSCORE_REGEXP_2 = (/\-|\s+/g); + + function fmt(str, formats) { + // first, replace any ORDERED replacements. + var idx = 0; // the current index for non-numerical replacements + return str.replace(/%@([0-9]+)?/g, function(s, argIndex) { + argIndex = (argIndex) ? parseInt(argIndex, 10) - 1 : idx++; + s = formats[argIndex]; + return (s === null) ? '(null)' : (s === undefined) ? '' : EmberInspect(s); + }) ; + } + + function loc(str, formats) { + str = Ember.STRINGS[str] || str; + return fmt(str, formats); + } + + function w(str) { + return str.split(/\s+/); + } + + function decamelize(str) { + return str.replace(STRING_DECAMELIZE_REGEXP, '$1_$2').toLowerCase(); + } + + function dasherize(str) { + var cache = STRING_DASHERIZE_CACHE, + hit = cache.hasOwnProperty(str), + ret; + + if (hit) { + return cache[str]; + } else { + ret = decamelize(str).replace(STRING_DASHERIZE_REGEXP,'-'); + cache[str] = ret; + } + + return ret; + } + + function camelize(str) { + return str.replace(STRING_CAMELIZE_REGEXP, function(match, separator, chr) { + return chr ? chr.toUpperCase() : ''; + }).replace(/^([A-Z])/, function(match, separator, chr) { + return match.toLowerCase(); + }); + } + + function classify(str) { + var parts = str.split("."), + out = []; + + for (var i=0, l=parts.length; i alpha + // > beta + // > gamma + ``` + + @method w + @param {String} str The string to split + @return {Array} array containing the split strings + */ + w: w, + + /** + Converts a camelized string into all lower case separated by underscores. + + ```javascript + 'innerHTML'.decamelize(); // 'inner_html' + 'action_name'.decamelize(); // 'action_name' + 'css-class-name'.decamelize(); // 'css-class-name' + 'my favorite items'.decamelize(); // 'my favorite items' + ``` + + @method decamelize + @param {String} str The string to decamelize. + @return {String} the decamelized string. + */ + decamelize: decamelize, + + /** + Replaces underscores, spaces, or camelCase with dashes. + + ```javascript + 'innerHTML'.dasherize(); // 'inner-html' + 'action_name'.dasherize(); // 'action-name' + 'css-class-name'.dasherize(); // 'css-class-name' + 'my favorite items'.dasherize(); // 'my-favorite-items' + ``` + + @method dasherize + @param {String} str The string to dasherize. + @return {String} the dasherized string. + */ + dasherize: dasherize, + + /** + Returns the lowerCamelCase form of a string. + + ```javascript + 'innerHTML'.camelize(); // 'innerHTML' + 'action_name'.camelize(); // 'actionName' + 'css-class-name'.camelize(); // 'cssClassName' + 'my favorite items'.camelize(); // 'myFavoriteItems' + 'My Favorite Items'.camelize(); // 'myFavoriteItems' + ``` + + @method camelize + @param {String} str The string to camelize. + @return {String} the camelized string. + */ + camelize: camelize, + + /** + Returns the UpperCamelCase form of a string. + + ```javascript + 'innerHTML'.classify(); // 'InnerHTML' + 'action_name'.classify(); // 'ActionName' + 'css-class-name'.classify(); // 'CssClassName' + 'my favorite items'.classify(); // 'MyFavoriteItems' + ``` + + @method classify + @param {String} str the string to classify + @return {String} the classified string + */ + classify: classify, + + /** + More general than decamelize. Returns the lower\_case\_and\_underscored + form of a string. + + ```javascript + 'innerHTML'.underscore(); // 'inner_html' + 'action_name'.underscore(); // 'action_name' + 'css-class-name'.underscore(); // 'css_class_name' + 'my favorite items'.underscore(); // 'my_favorite_items' + ``` + + @method underscore + @param {String} str The string to underscore. + @return {String} the underscored string. + */ + underscore: underscore, + + /** + Returns the Capitalized form of a string + + ```javascript + 'innerHTML'.capitalize() // 'InnerHTML' + 'action_name'.capitalize() // 'Action_name' + 'css-class-name'.capitalize() // 'Css-class-name' + 'my favorite items'.capitalize() // 'My favorite items' + ``` + + @method capitalize + @param {String} str The string to capitalize. + @return {String} The capitalized string. + */ + capitalize: capitalize + }; + + __exports__["default"] = EmberStringUtils; + __exports__.fmt = fmt; + __exports__.loc = loc; + __exports__.w = w; + __exports__.decamelize = decamelize; + __exports__.dasherize = dasherize; + __exports__.camelize = camelize; + __exports__.classify = classify; + __exports__.underscore = underscore; + __exports__.capitalize = capitalize; + }); +define("ember-runtime/system/subarray", + ["ember-metal/property_get","ember-metal/error","ember-metal/enumerable_utils","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var EmberError = __dependency2__["default"]; + var EnumerableUtils = __dependency3__["default"]; + + var RETAIN = 'r', + FILTER = 'f'; + + function Operation (type, count) { + this.type = type; + this.count = count; + } + + /** + An `Ember.SubArray` tracks an array in a way similar to, but more specialized + than, `Ember.TrackedArray`. It is useful for keeping track of the indexes of + items within a filtered array. + + @class SubArray + @namespace Ember + */ + function SubArray (length) { + if (arguments.length < 1) { length = 0; } + + if (length > 0) { + this._operations = [new Operation(RETAIN, length)]; + } else { + this._operations = []; + } + }; + + SubArray.prototype = { + /** + Track that an item was added to the tracked array. + + @method addItem + + @param {number} index The index of the item in the tracked array. + @param {boolean} match `true` iff the item is included in the subarray. + + @return {number} The index of the item in the subarray. + */ + addItem: function(index, match) { + var returnValue = -1, + itemType = match ? RETAIN : FILTER, + self = this; + + this._findOperation(index, function(operation, operationIndex, rangeStart, rangeEnd, seenInSubArray) { + var newOperation, splitOperation; + + if (itemType === operation.type) { + ++operation.count; + } else if (index === rangeStart) { + // insert to the left of `operation` + self._operations.splice(operationIndex, 0, new Operation(itemType, 1)); + } else { + newOperation = new Operation(itemType, 1); + splitOperation = new Operation(operation.type, rangeEnd - index + 1); + operation.count = index - rangeStart; + + self._operations.splice(operationIndex + 1, 0, newOperation, splitOperation); + } + + if (match) { + if (operation.type === RETAIN) { + returnValue = seenInSubArray + (index - rangeStart); + } else { + returnValue = seenInSubArray; + } + } + + self._composeAt(operationIndex); + }, function(seenInSubArray) { + self._operations.push(new Operation(itemType, 1)); + + if (match) { + returnValue = seenInSubArray; + } + + self._composeAt(self._operations.length-1); + }); + + return returnValue; + }, + + /** + Track that an item was removed from the tracked array. + + @method removeItem + + @param {number} index The index of the item in the tracked array. + + @return {number} The index of the item in the subarray, or `-1` if the item + was not in the subarray. + */ + removeItem: function(index) { + var returnValue = -1, + self = this; + + this._findOperation(index, function (operation, operationIndex, rangeStart, rangeEnd, seenInSubArray) { + if (operation.type === RETAIN) { + returnValue = seenInSubArray + (index - rangeStart); + } + + if (operation.count > 1) { + --operation.count; + } else { + self._operations.splice(operationIndex, 1); + self._composeAt(operationIndex); + } + }, function() { + throw new EmberError("Can't remove an item that has never been added."); + }); + + return returnValue; + }, + + + _findOperation: function (index, foundCallback, notFoundCallback) { + var operationIndex, + len, + operation, + rangeStart, + rangeEnd, + seenInSubArray = 0; + + // OPTIMIZE: change to balanced tree + // find leftmost operation to the right of `index` + for (operationIndex = rangeStart = 0, len = this._operations.length; operationIndex < len; rangeStart = rangeEnd + 1, ++operationIndex) { + operation = this._operations[operationIndex]; + rangeEnd = rangeStart + operation.count - 1; + + if (index >= rangeStart && index <= rangeEnd) { + foundCallback(operation, operationIndex, rangeStart, rangeEnd, seenInSubArray); + return; + } else if (operation.type === RETAIN) { + seenInSubArray += operation.count; + } + } + + notFoundCallback(seenInSubArray); + }, + + _composeAt: function(index) { + var op = this._operations[index], + otherOp; + + if (!op) { + // Composing out of bounds is a no-op, as when removing the last operation + // in the list. + return; + } + + if (index > 0) { + otherOp = this._operations[index-1]; + if (otherOp.type === op.type) { + op.count += otherOp.count; + this._operations.splice(index-1, 1); + --index; + } + } + + if (index < this._operations.length-1) { + otherOp = this._operations[index+1]; + if (otherOp.type === op.type) { + op.count += otherOp.count; + this._operations.splice(index+1, 1); + } + } + }, + + toString: function () { + var str = ""; + forEach(this._operations, function (operation) { + str += " " + operation.type + ":" + operation.count; + }); + return str.substring(1); + } + }; + + __exports__["default"] = SubArray; + }); +define("ember-runtime/system/tracked_array", + ["ember-metal/property_get","ember-metal/enumerable_utils","exports"], + function(__dependency1__, __dependency2__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var EnumerableUtils = __dependency2__["default"]; + + var forEach = EnumerableUtils.forEach, + RETAIN = 'r', + INSERT = 'i', + DELETE = 'd'; + + + /** + An `Ember.TrackedArray` tracks array operations. It's useful when you want to + lazily compute the indexes of items in an array after they've been shifted by + subsequent operations. + + @class TrackedArray + @namespace Ember + @param {array} [items=[]] The array to be tracked. This is used just to get + the initial items for the starting state of retain:n. + */ + function TrackedArray(items) { + if (arguments.length < 1) { items = []; } + + var length = get(items, 'length'); + + if (length) { + this._operations = [new ArrayOperation(RETAIN, length, items)]; + } else { + this._operations = []; + } + }; + + TrackedArray.RETAIN = RETAIN; + TrackedArray.INSERT = INSERT; + TrackedArray.DELETE = DELETE; + + TrackedArray.prototype = { + + /** + Track that `newItems` were added to the tracked array at `index`. + + @method addItems + @param index + @param newItems + */ + addItems: function (index, newItems) { + var count = get(newItems, 'length'); + if (count < 1) { return; } + + var match = this._findArrayOperation(index), + arrayOperation = match.operation, + arrayOperationIndex = match.index, + arrayOperationRangeStart = match.rangeStart, + composeIndex, + splitIndex, + splitItems, + splitArrayOperation, + newArrayOperation; + + newArrayOperation = new ArrayOperation(INSERT, count, newItems); + + if (arrayOperation) { + if (!match.split) { + // insert left of arrayOperation + this._operations.splice(arrayOperationIndex, 0, newArrayOperation); + composeIndex = arrayOperationIndex; + } else { + this._split(arrayOperationIndex, index - arrayOperationRangeStart, newArrayOperation); + composeIndex = arrayOperationIndex + 1; + } + } else { + // insert at end + this._operations.push(newArrayOperation); + composeIndex = arrayOperationIndex; + } + + this._composeInsert(composeIndex); + }, + + /** + Track that `count` items were removed at `index`. + + @method removeItems + @param index + @param count + */ + removeItems: function (index, count) { + if (count < 1) { return; } + + var match = this._findArrayOperation(index), + arrayOperation = match.operation, + arrayOperationIndex = match.index, + arrayOperationRangeStart = match.rangeStart, + newArrayOperation, + composeIndex; + + newArrayOperation = new ArrayOperation(DELETE, count); + if (!match.split) { + // insert left of arrayOperation + this._operations.splice(arrayOperationIndex, 0, newArrayOperation); + composeIndex = arrayOperationIndex; + } else { + this._split(arrayOperationIndex, index - arrayOperationRangeStart, newArrayOperation); + composeIndex = arrayOperationIndex + 1; + } + + return this._composeDelete(composeIndex); + }, + + /** + Apply all operations, reducing them to retain:n, for `n`, the number of + items in the array. + + `callback` will be called for each operation and will be passed the following arguments: + + * {array} items The items for the given operation + * {number} offset The computed offset of the items, ie the index in the + array of the first item for this operation. + * {string} operation The type of the operation. One of + `Ember.TrackedArray.{RETAIN, DELETE, INSERT}` + + @method apply + @param {function} callback + */ + apply: function (callback) { + var items = [], + offset = 0; + + forEach(this._operations, function (arrayOperation) { + callback(arrayOperation.items, offset, arrayOperation.type); + + if (arrayOperation.type !== DELETE) { + offset += arrayOperation.count; + items = items.concat(arrayOperation.items); + } + }); + + this._operations = [new ArrayOperation(RETAIN, items.length, items)]; + }, + + /** + Return an `ArrayOperationMatch` for the operation that contains the item at `index`. + + @method _findArrayOperation + + @param {number} index the index of the item whose operation information + should be returned. + @private + */ + _findArrayOperation: function (index) { + var arrayOperationIndex, + len, + split = false, + arrayOperation, + arrayOperationRangeStart, + arrayOperationRangeEnd; + + // OPTIMIZE: we could search these faster if we kept a balanced tree. + // find leftmost arrayOperation to the right of `index` + for (arrayOperationIndex = arrayOperationRangeStart = 0, len = this._operations.length; arrayOperationIndex < len; ++arrayOperationIndex) { + arrayOperation = this._operations[arrayOperationIndex]; + + if (arrayOperation.type === DELETE) { continue; } + + arrayOperationRangeEnd = arrayOperationRangeStart + arrayOperation.count - 1; + + if (index === arrayOperationRangeStart) { + break; + } else if (index > arrayOperationRangeStart && index <= arrayOperationRangeEnd) { + split = true; + break; + } else { + arrayOperationRangeStart = arrayOperationRangeEnd + 1; + } + } + + return new ArrayOperationMatch(arrayOperation, arrayOperationIndex, split, arrayOperationRangeStart); + }, + + _split: function (arrayOperationIndex, splitIndex, newArrayOperation) { + var arrayOperation = this._operations[arrayOperationIndex], + splitItems = arrayOperation.items.slice(splitIndex), + splitArrayOperation = new ArrayOperation(arrayOperation.type, splitItems.length, splitItems); + + // truncate LHS + arrayOperation.count = splitIndex; + arrayOperation.items = arrayOperation.items.slice(0, splitIndex); + + this._operations.splice(arrayOperationIndex + 1, 0, newArrayOperation, splitArrayOperation); + }, + + // see SubArray for a better implementation. + _composeInsert: function (index) { + var newArrayOperation = this._operations[index], + leftArrayOperation = this._operations[index-1], // may be undefined + rightArrayOperation = this._operations[index+1], // may be undefined + leftOp = leftArrayOperation && leftArrayOperation.type, + rightOp = rightArrayOperation && rightArrayOperation.type; + + if (leftOp === INSERT) { + // merge left + leftArrayOperation.count += newArrayOperation.count; + leftArrayOperation.items = leftArrayOperation.items.concat(newArrayOperation.items); + + if (rightOp === INSERT) { + // also merge right (we have split an insert with an insert) + leftArrayOperation.count += rightArrayOperation.count; + leftArrayOperation.items = leftArrayOperation.items.concat(rightArrayOperation.items); + this._operations.splice(index, 2); + } else { + // only merge left + this._operations.splice(index, 1); + } + } else if (rightOp === INSERT) { + // merge right + newArrayOperation.count += rightArrayOperation.count; + newArrayOperation.items = newArrayOperation.items.concat(rightArrayOperation.items); + this._operations.splice(index + 1, 1); + } + }, + + _composeDelete: function (index) { + var arrayOperation = this._operations[index], + deletesToGo = arrayOperation.count, + leftArrayOperation = this._operations[index-1], // may be undefined + leftOp = leftArrayOperation && leftArrayOperation.type, + nextArrayOperation, + nextOp, + nextCount, + removeNewAndNextOp = false, + removedItems = []; + + if (leftOp === DELETE) { + arrayOperation = leftArrayOperation; + index -= 1; + } + + for (var i = index + 1; deletesToGo > 0; ++i) { + nextArrayOperation = this._operations[i]; + nextOp = nextArrayOperation.type; + nextCount = nextArrayOperation.count; + + if (nextOp === DELETE) { + arrayOperation.count += nextCount; + continue; + } + + if (nextCount > deletesToGo) { + // d:2 {r,i}:5 we reduce the retain or insert, but it stays + removedItems = removedItems.concat(nextArrayOperation.items.splice(0, deletesToGo)); + nextArrayOperation.count -= deletesToGo; + + // In the case where we truncate the last arrayOperation, we don't need to + // remove it; also the deletesToGo reduction is not the entirety of + // nextCount + i -= 1; + nextCount = deletesToGo; + + deletesToGo = 0; + } else { + if (nextCount === deletesToGo) { + // Handle edge case of d:2 i:2 in which case both operations go away + // during composition. + removeNewAndNextOp = true; + } + removedItems = removedItems.concat(nextArrayOperation.items); + deletesToGo -= nextCount; + } + + if (nextOp === INSERT) { + // d:2 i:3 will result in delete going away + arrayOperation.count -= nextCount; + } + } + + if (arrayOperation.count > 0) { + // compose our new delete with possibly several operations to the right of + // disparate types + this._operations.splice(index+1, i-1-index); + } else { + // The delete operation can go away; it has merely reduced some other + // operation, as in d:3 i:4; it may also have eliminated that operation, + // as in d:3 i:3. + this._operations.splice(index, removeNewAndNextOp ? 2 : 1); + } + + return removedItems; + }, + + toString: function () { + var str = ""; + forEach(this._operations, function (operation) { + str += " " + operation.type + ":" + operation.count; + }); + return str.substring(1); + } + }; + + /** + Internal data structure to represent an array operation. + + @method ArrayOperation + @private + @param {string} type The type of the operation. One of + `Ember.TrackedArray.{RETAIN, INSERT, DELETE}` + @param {number} count The number of items in this operation. + @param {array} items The items of the operation, if included. RETAIN and + INSERT include their items, DELETE does not. + */ + function ArrayOperation (operation, count, items) { + this.type = operation; // RETAIN | INSERT | DELETE + this.count = count; + this.items = items; + } + + /** + Internal data structure used to include information when looking up operations + by item index. + + @method ArrayOperationMatch + @private + @param {ArrayOperation} operation + @param {number} index The index of `operation` in the array of operations. + @param {boolean} split Whether or not the item index searched for would + require a split for a new operation type. + @param {number} rangeStart The index of the first item in the operation, + with respect to the tracked array. The index of the last item can be computed + from `rangeStart` and `operation.count`. + */ + function ArrayOperationMatch(operation, index, split, rangeStart) { + this.operation = operation; + this.index = index; + this.split = split; + this.rangeStart = rangeStart; + } + + __exports__["default"] = TrackedArray; + }); +})(); + +(function() { +define("ember-views", + ["ember-runtime","ember-views/system/jquery","ember-views/system/utils","ember-views/system/render_buffer","ember-views/system/ext","ember-views/views/states","ember-views/views/view","ember-views/views/container_view","ember-views/views/collection_view","ember-views/views/component","ember-views/system/event_dispatcher","ember-views/mixins/view_target_action_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __exports__) { + "use strict"; + /** + Ember Views + + @module ember + @submodule ember-views + @requires ember-runtime + @main ember-views + */ + + // BEGIN EXPORTS + Ember.$ = __dependency2__["default"]; + + Ember.ViewTargetActionSupport = __dependency12__["default"]; + Ember.RenderBuffer = __dependency4__["default"]; + + var ViewUtils = Ember.ViewUtils = {}; + ViewUtils.setInnerHTML = __dependency3__.setInnerHTML; + ViewUtils.isSimpleClick = __dependency3__.isSimpleClick; + + Ember.CoreView = __dependency7__.CoreView; + Ember.View = __dependency7__.View; + Ember.View.states = __dependency6__.states; + Ember.View.cloneStates = __dependency6__.cloneStates; + + Ember._ViewCollection = __dependency7__.ViewCollection; + Ember.ContainerView = __dependency8__["default"]; + Ember.CollectionView = __dependency9__["default"]; + Ember.Component = __dependency10__["default"]; + Ember.EventDispatcher = __dependency11__["default"]; + // END EXPORTS + + __exports__["default"] = Ember; + }); +define("ember-views/mixins/component_template_deprecation", + ["ember-metal/core","ember-metal/property_get","ember-metal/mixin","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.deprecate + var get = __dependency2__.get; + var Mixin = __dependency3__.Mixin; + + /** + The ComponentTemplateDeprecation mixin is used to provide a useful + deprecation warning when using either `template` or `templateName` with + a component. The `template` and `templateName` properties specified at + extend time are moved to `layout` and `layoutName` respectively. + + `Ember.ComponentTemplateDeprecation` is used internally by Ember in + `Ember.Component`. + + @class ComponentTemplateDeprecation + @namespace Ember + */ + var ComponentTemplateDeprecation = Mixin.create({ + /** + @private + + Moves `templateName` to `layoutName` and `template` to `layout` at extend + time if a layout is not also specified. + + Note that this currently modifies the mixin themselves, which is technically + dubious but is practically of little consequence. This may change in the + future. + + @method willMergeMixin + */ + willMergeMixin: function(props) { + // must call _super here to ensure that the ActionHandler + // mixin is setup properly (moves actions -> _actions) + // + // Calling super is only OK here since we KNOW that + // there is another Mixin loaded first. + this._super.apply(this, arguments); + + var deprecatedProperty, replacementProperty, + layoutSpecified = (props.layoutName || props.layout || get(this, 'layoutName')); + + if (props.templateName && !layoutSpecified) { + deprecatedProperty = 'templateName'; + replacementProperty = 'layoutName'; + + props.layoutName = props.templateName; + delete props['templateName']; + } + + if (props.template && !layoutSpecified) { + deprecatedProperty = 'template'; + replacementProperty = 'layout'; + + props.layout = props.template; + delete props['template']; + } + + if (deprecatedProperty) { + Ember.deprecate('Do not specify ' + deprecatedProperty + ' on a Component, use ' + replacementProperty + ' instead.', false); + } + } + }); + + __exports__["default"] = ComponentTemplateDeprecation; + }); +define("ember-views/mixins/view_target_action_support", + ["ember-metal/mixin","ember-runtime/mixins/target_action_support","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var Mixin = __dependency1__.Mixin; + var TargetActionSupport = __dependency2__["default"]; + + // ES6TODO: computed should have its own export path so you can do import {defaultTo} from computed + var computed = __dependency3__.computed; + var alias = computed.alias; + + /** + `Ember.ViewTargetActionSupport` is a mixin that can be included in a + view class to add a `triggerAction` method with semantics similar to + the Handlebars `{{action}}` helper. It provides intelligent defaults + for the action's target: the view's controller; and the context that is + sent with the action: the view's context. + + Note: In normal Ember usage, the `{{action}}` helper is usually the best + choice. This mixin is most often useful when you are doing more complex + event handling in custom View subclasses. + + For example: + + ```javascript + App.SaveButtonView = Ember.View.extend(Ember.ViewTargetActionSupport, { + action: 'save', + click: function() { + this.triggerAction(); // Sends the `save` action, along with the current context + // to the current controller + } + }); + ``` + + The `action` can be provided as properties of an optional object argument + to `triggerAction` as well. + + ```javascript + App.SaveButtonView = Ember.View.extend(Ember.ViewTargetActionSupport, { + click: function() { + this.triggerAction({ + action: 'save' + }); // Sends the `save` action, along with the current context + // to the current controller + } + }); + ``` + + @class ViewTargetActionSupport + @namespace Ember + @extends Ember.TargetActionSupport + */ + var ViewTargetActionSupport = Mixin.create(TargetActionSupport, { + /** + @property target + */ + target: alias('controller'), + /** + @property actionContext + */ + actionContext: alias('context') + }); + + __exports__["default"] = ViewTargetActionSupport; + }); +define("ember-views/system/event_dispatcher", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-metal/is_none","ember-metal/run_loop","ember-metal/utils","ember-runtime/system/string","ember-runtime/system/object","ember-views/system/jquery","ember-views/views/view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-views + */ + var Ember = __dependency1__["default"]; + // Ember.assert + + var get = __dependency2__.get; + var set = __dependency3__.set; + var isNone = __dependency4__.isNone; + var run = __dependency5__["default"]; + var typeOf = __dependency6__.typeOf; + var fmt = __dependency7__.fmt; + var EmberObject = __dependency8__["default"]; + var jQuery = __dependency9__["default"]; + var View = __dependency10__.View; + + var ActionHelper; + + //ES6TODO: + // find a better way to do Ember.View.views without global state + + /** + `Ember.EventDispatcher` handles delegating browser events to their + corresponding `Ember.Views.` For example, when you click on a view, + `Ember.EventDispatcher` ensures that that view's `mouseDown` method gets + called. + + @class EventDispatcher + @namespace Ember + @private + @extends Ember.Object + */ + var EventDispatcher = EmberObject.extend({ + + /** + The set of events names (and associated handler function names) to be setup + and dispatched by the `EventDispatcher`. Custom events can added to this list at setup + time, generally via the `Ember.Application.customEvents` hash. Only override this + default set to prevent the EventDispatcher from listening on some events all together. + + This set will be modified by `setup` to also include any events added at that time. + + @property events + @type Object + */ + events: { + touchstart : 'touchStart', + touchmove : 'touchMove', + touchend : 'touchEnd', + touchcancel : 'touchCancel', + keydown : 'keyDown', + keyup : 'keyUp', + keypress : 'keyPress', + mousedown : 'mouseDown', + mouseup : 'mouseUp', + contextmenu : 'contextMenu', + click : 'click', + dblclick : 'doubleClick', + mousemove : 'mouseMove', + focusin : 'focusIn', + focusout : 'focusOut', + mouseenter : 'mouseEnter', + mouseleave : 'mouseLeave', + submit : 'submit', + input : 'input', + change : 'change', + dragstart : 'dragStart', + drag : 'drag', + dragenter : 'dragEnter', + dragleave : 'dragLeave', + dragover : 'dragOver', + drop : 'drop', + dragend : 'dragEnd' + }, + + /** + The root DOM element to which event listeners should be attached. Event + listeners will be attached to the document unless this is overridden. + + Can be specified as a DOMElement or a selector string. + + The default body is a string since this may be evaluated before document.body + exists in the DOM. + + @private + @property rootElement + @type DOMElement + @default 'body' + */ + rootElement: 'body', + + /** + Sets up event listeners for standard browser events. + + This will be called after the browser sends a `DOMContentReady` event. By + default, it will set up all of the listeners on the document body. If you + would like to register the listeners on a different element, set the event + dispatcher's `root` property. + + @private + @method setup + @param addedEvents {Hash} + */ + setup: function(addedEvents, rootElement) { + var event, events = get(this, 'events'); + + jQuery.extend(events, addedEvents || {}); + + + if (!isNone(rootElement)) { + set(this, 'rootElement', rootElement); + } + + rootElement = jQuery(get(this, 'rootElement')); + + Ember.assert(fmt('You cannot use the same root element (%@) multiple times in an Ember.Application', [rootElement.selector || rootElement[0].tagName]), !rootElement.is('.ember-application')); + Ember.assert('You cannot make a new Ember.Application using a root element that is a descendent of an existing Ember.Application', !rootElement.closest('.ember-application').length); + Ember.assert('You cannot make a new Ember.Application using a root element that is an ancestor of an existing Ember.Application', !rootElement.find('.ember-application').length); + + rootElement.addClass('ember-application'); + + Ember.assert('Unable to add "ember-application" class to rootElement. Make sure you set rootElement to the body or an element in the body.', rootElement.is('.ember-application')); + + for (event in events) { + if (events.hasOwnProperty(event)) { + this.setupHandler(rootElement, event, events[event]); + } + } + }, + + /** + Registers an event listener on the document. If the given event is + triggered, the provided event handler will be triggered on the target view. + + If the target view does not implement the event handler, or if the handler + returns `false`, the parent view will be called. The event will continue to + bubble to each successive parent view until it reaches the top. + + For example, to have the `mouseDown` method called on the target view when + a `mousedown` event is received from the browser, do the following: + + ```javascript + setupHandler('mousedown', 'mouseDown'); + ``` + + @private + @method setupHandler + @param {Element} rootElement + @param {String} event the browser-originated event to listen to + @param {String} eventName the name of the method to call on the view + */ + setupHandler: function(rootElement, event, eventName) { + var self = this; + + rootElement.on(event + '.ember', '.ember-view', function(evt, triggeringManager) { + var view = View.views[this.id], + result = true, manager = null; + + manager = self._findNearestEventManager(view, eventName); + + if (manager && manager !== triggeringManager) { + result = self._dispatchEvent(manager, evt, eventName, view); + } else if (view) { + result = self._bubbleEvent(view, evt, eventName); + } else { + evt.stopPropagation(); + } + + return result; + }); + + rootElement.on(event + '.ember', '[data-ember-action]', function(evt) { + //ES6TODO: Needed for ActionHelper (generally not available in ember-views test suite) + if (!ActionHelper) { ActionHelper = requireModule("ember-routing/helpers/action")["ActionHelper"]; }; + + var actionId = jQuery(evt.currentTarget).attr('data-ember-action'), + action = ActionHelper.registeredActions[actionId]; + + // We have to check for action here since in some cases, jQuery will trigger + // an event on `removeChild` (i.e. focusout) after we've already torn down the + // action handlers for the view. + if (action && action.eventName === eventName) { + return action.handler(evt); + } + }); + }, + + _findNearestEventManager: function(view, eventName) { + var manager = null; + + while (view) { + manager = get(view, 'eventManager'); + if (manager && manager[eventName]) { break; } + + view = get(view, 'parentView'); + } + + return manager; + }, + + _dispatchEvent: function(object, evt, eventName, view) { + var result = true; + + var handler = object[eventName]; + if (typeOf(handler) === 'function') { + result = run(object, handler, evt, view); + // Do not preventDefault in eventManagers. + evt.stopPropagation(); + } + else { + result = this._bubbleEvent(view, evt, eventName); + } + + return result; + }, + + _bubbleEvent: function(view, evt, eventName) { + return run(view, view.handleEvent, eventName, evt); + }, + + destroy: function() { + var rootElement = get(this, 'rootElement'); + jQuery(rootElement).off('.ember', '**').removeClass('ember-application'); + return this._super(); + } + }); + + __exports__["default"] = EventDispatcher; + }); +define("ember-views/system/ext", + ["ember-metal/run_loop"], + function(__dependency1__) { + "use strict"; + /** + @module ember + @submodule ember-views + */ + + var run = __dependency1__["default"]; + + // Add a new named queue for rendering views that happens + // after bindings have synced, and a queue for scheduling actions + // that that should occur after view rendering. + var queues = run.queues; + run._addQueue('render', 'actions'); + run._addQueue('afterRender', 'render'); + }); +define("ember-views/system/jquery", + ["ember-metal/core","ember-runtime/system/string","ember-metal/enumerable_utils","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert + var w = __dependency2__.w; + + // ES6TODO: the functions on EnumerableUtils need their own exports + var EnumerableUtils = __dependency3__["default"]; + var forEach = EnumerableUtils.forEach; + + /** + Ember Views + + @module ember + @submodule ember-views + @requires ember-runtime + @main ember-views + */ + + var jQuery = (Ember.imports && Ember.imports.jQuery) || (this && this.jQuery); + if (!jQuery && typeof require === 'function') { + jQuery = require('jquery'); + } + + Ember.assert("Ember Views require jQuery between 1.7 and 2.1", jQuery && (jQuery().jquery.match(/^((1\.(7|8|9|10|11))|(2\.(0|1)))(\.\d+)?(pre|rc\d?)?/) || Ember.ENV.FORCE_JQUERY)); + + /** + @module ember + @submodule ember-views + */ + if (jQuery) { + // http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dndevents + var dragEvents = w('dragstart drag dragenter dragleave dragover drop dragend'); + + // Copies the `dataTransfer` property from a browser event object onto the + // jQuery event object for the specified events + forEach(dragEvents, function(eventName) { + jQuery.event.fixHooks[eventName] = { props: ['dataTransfer'] }; + }); + } + + __exports__["default"] = jQuery; + }); +define("ember-views/system/render_buffer", + ["ember-metal/core","ember-metal/property_get","ember-metal/property_set","ember-views/system/utils","ember-views/system/jquery","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-views + */ + + var Ember = __dependency1__["default"]; + // jQuery + + var get = __dependency2__.get; + var set = __dependency3__.set; + var setInnerHTML = __dependency4__.setInnerHTML; + var jQuery = __dependency5__["default"]; + + function ClassSet() { + this.seen = {}; + this.list = []; + }; + + + ClassSet.prototype = { + add: function(string) { + if (string in this.seen) { return; } + this.seen[string] = true; + + this.list.push(string); + }, + + toDOM: function() { + return this.list.join(" "); + } + }; + + var BAD_TAG_NAME_TEST_REGEXP = /[^a-zA-Z0-9\-]/; + var BAD_TAG_NAME_REPLACE_REGEXP = /[^a-zA-Z0-9\-]/g; + + function stripTagName(tagName) { + if (!tagName) { + return tagName; + } + + if (!BAD_TAG_NAME_TEST_REGEXP.test(tagName)) { + return tagName; + } + + return tagName.replace(BAD_TAG_NAME_REPLACE_REGEXP, ''); + } + + var BAD_CHARS_REGEXP = /&(?!\w+;)|[<>"'`]/g; + var POSSIBLE_CHARS_REGEXP = /[&<>"'`]/; + + function escapeAttribute(value) { + // Stolen shamelessly from Handlebars + + var escape = { + "<": "<", + ">": ">", + '"': """, + "'": "'", + "`": "`" + }; + + var escapeChar = function(chr) { + return escape[chr] || "&"; + }; + + var string = value.toString(); + + if(!POSSIBLE_CHARS_REGEXP.test(string)) { return string; } + return string.replace(BAD_CHARS_REGEXP, escapeChar); + } + + // IE 6/7 have bugs around setting names on inputs during creation. + // From http://msdn.microsoft.com/en-us/library/ie/ms536389(v=vs.85).aspx: + // "To include the NAME attribute at run time on objects created with the createElement method, use the eTag." + var canSetNameOnInputs = (function() { + var div = document.createElement('div'), + el = document.createElement('input'); + + el.setAttribute('name', 'foo'); + div.appendChild(el); + + return !!div.innerHTML.match('foo'); + })(); + + /** + `Ember.RenderBuffer` gathers information regarding the a view and generates the + final representation. `Ember.RenderBuffer` will generate HTML which can be pushed + to the DOM. + + ```javascript + var buffer = Ember.RenderBuffer('div'); + ``` + + @class RenderBuffer + @namespace Ember + @constructor + @param {String} tagName tag name (such as 'div' or 'p') used for the buffer + */ + var RenderBuffer = function(tagName) { + return new _RenderBuffer(tagName); + }; + + var _RenderBuffer = function(tagName) { + this.tagNames = [tagName || null]; + this.buffer = ""; + }; + + _RenderBuffer.prototype = { + + // The root view's element + _element: null, + + _hasElement: true, + + /** + An internal set used to de-dupe class names when `addClass()` is + used. After each call to `addClass()`, the `classes` property + will be updated. + + @private + @property elementClasses + @type Array + @default [] + */ + elementClasses: null, + + /** + Array of class names which will be applied in the class attribute. + + You can use `setClasses()` to set this property directly. If you + use `addClass()`, it will be maintained for you. + + @property classes + @type Array + @default [] + */ + classes: null, + + /** + The id in of the element, to be applied in the id attribute. + + You should not set this property yourself, rather, you should use + the `id()` method of `Ember.RenderBuffer`. + + @property elementId + @type String + @default null + */ + elementId: null, + + /** + A hash keyed on the name of the attribute and whose value will be + applied to that attribute. For example, if you wanted to apply a + `data-view="Foo.bar"` property to an element, you would set the + elementAttributes hash to `{'data-view':'Foo.bar'}`. + + You should not maintain this hash yourself, rather, you should use + the `attr()` method of `Ember.RenderBuffer`. + + @property elementAttributes + @type Hash + @default {} + */ + elementAttributes: null, + + /** + A hash keyed on the name of the properties and whose value will be + applied to that property. For example, if you wanted to apply a + `checked=true` property to an element, you would set the + elementProperties hash to `{'checked':true}`. + + You should not maintain this hash yourself, rather, you should use + the `prop()` method of `Ember.RenderBuffer`. + + @property elementProperties + @type Hash + @default {} + */ + elementProperties: null, + + /** + The tagname of the element an instance of `Ember.RenderBuffer` represents. + + Usually, this gets set as the first parameter to `Ember.RenderBuffer`. For + example, if you wanted to create a `p` tag, then you would call + + ```javascript + Ember.RenderBuffer('p') + ``` + + @property elementTag + @type String + @default null + */ + elementTag: null, + + /** + A hash keyed on the name of the style attribute and whose value will + be applied to that attribute. For example, if you wanted to apply a + `background-color:black;` style to an element, you would set the + elementStyle hash to `{'background-color':'black'}`. + + You should not maintain this hash yourself, rather, you should use + the `style()` method of `Ember.RenderBuffer`. + + @property elementStyle + @type Hash + @default {} + */ + elementStyle: null, + + /** + Nested `RenderBuffers` will set this to their parent `RenderBuffer` + instance. + + @property parentBuffer + @type Ember._RenderBuffer + */ + parentBuffer: null, + + /** + Adds a string of HTML to the `RenderBuffer`. + + @method push + @param {String} string HTML to push into the buffer + @chainable + */ + push: function(string) { + this.buffer += string; + return this; + }, + + /** + Adds a class to the buffer, which will be rendered to the class attribute. + + @method addClass + @param {String} className Class name to add to the buffer + @chainable + */ + addClass: function(className) { + // lazily create elementClasses + this.elementClasses = (this.elementClasses || new ClassSet()); + this.elementClasses.add(className); + this.classes = this.elementClasses.list; + + return this; + }, + + setClasses: function(classNames) { + this.elementClasses = null; + var len = classNames.length, i; + for (i = 0; i < len; i++) { + this.addClass(classNames[i]); + } + }, + + /** + Sets the elementID to be used for the element. + + @method id + @param {String} id + @chainable + */ + id: function(id) { + this.elementId = id; + return this; + }, + + // duck type attribute functionality like jQuery so a render buffer + // can be used like a jQuery object in attribute binding scenarios. + + /** + Adds an attribute which will be rendered to the element. + + @method attr + @param {String} name The name of the attribute + @param {String} value The value to add to the attribute + @chainable + @return {Ember.RenderBuffer|String} this or the current attribute value + */ + attr: function(name, value) { + var attributes = this.elementAttributes = (this.elementAttributes || {}); + + if (arguments.length === 1) { + return attributes[name]; + } else { + attributes[name] = value; + } + + return this; + }, + + /** + Remove an attribute from the list of attributes to render. + + @method removeAttr + @param {String} name The name of the attribute + @chainable + */ + removeAttr: function(name) { + var attributes = this.elementAttributes; + if (attributes) { delete attributes[name]; } + + return this; + }, + + /** + Adds a property which will be rendered to the element. + + @method prop + @param {String} name The name of the property + @param {String} value The value to add to the property + @chainable + @return {Ember.RenderBuffer|String} this or the current property value + */ + prop: function(name, value) { + var properties = this.elementProperties = (this.elementProperties || {}); + + if (arguments.length === 1) { + return properties[name]; + } else { + properties[name] = value; + } + + return this; + }, + + /** + Remove an property from the list of properties to render. + + @method removeProp + @param {String} name The name of the property + @chainable + */ + removeProp: function(name) { + var properties = this.elementProperties; + if (properties) { delete properties[name]; } + + return this; + }, + + /** + Adds a style to the style attribute which will be rendered to the element. + + @method style + @param {String} name Name of the style + @param {String} value + @chainable + */ + style: function(name, value) { + this.elementStyle = (this.elementStyle || {}); + + this.elementStyle[name] = value; + return this; + }, + + begin: function(tagName) { + this.tagNames.push(tagName || null); + return this; + }, + + pushOpeningTag: function() { + var tagName = this.currentTagName(); + if (!tagName) { return; } + + if (this._hasElement && !this._element && this.buffer.length === 0) { + this._element = this.generateElement(); + return; + } + + var buffer = this.buffer, + id = this.elementId, + classes = this.classes, + attrs = this.elementAttributes, + props = this.elementProperties, + style = this.elementStyle, + attr, prop; + + buffer += '<' + stripTagName(tagName); + + if (id) { + buffer += ' id="' + escapeAttribute(id) + '"'; + this.elementId = null; + } + if (classes) { + buffer += ' class="' + escapeAttribute(classes.join(' ')) + '"'; + this.classes = null; + this.elementClasses = null; + } + + if (style) { + buffer += ' style="'; + + for (prop in style) { + if (style.hasOwnProperty(prop)) { + buffer += prop + ':' + escapeAttribute(style[prop]) + ';'; + } + } + + buffer += '"'; + + this.elementStyle = null; + } + + if (attrs) { + for (attr in attrs) { + if (attrs.hasOwnProperty(attr)) { + buffer += ' ' + attr + '="' + escapeAttribute(attrs[attr]) + '"'; + } + } + + this.elementAttributes = null; + } + + if (props) { + for (prop in props) { + if (props.hasOwnProperty(prop)) { + var value = props[prop]; + if (value || typeof(value) === 'number') { + if (value === true) { + buffer += ' ' + prop + '="' + prop + '"'; + } else { + buffer += ' ' + prop + '="' + escapeAttribute(props[prop]) + '"'; + } + } + } + } + + this.elementProperties = null; + } + + buffer += '>'; + this.buffer = buffer; + }, + + pushClosingTag: function() { + var tagName = this.tagNames.pop(); + if (tagName) { this.buffer += ''; } + }, + + currentTagName: function() { + return this.tagNames[this.tagNames.length-1]; + }, + + generateElement: function() { + var tagName = this.tagNames.pop(), // pop since we don't need to close + id = this.elementId, + classes = this.classes, + attrs = this.elementAttributes, + props = this.elementProperties, + style = this.elementStyle, + styleBuffer = '', attr, prop, tagString; + + if (attrs && attrs.name && !canSetNameOnInputs) { + // IE allows passing a tag to createElement. See note on `canSetNameOnInputs` above as well. + tagString = '<'+stripTagName(tagName)+' name="'+escapeAttribute(attrs.name)+'">'; + } else { + tagString = tagName; + } + + var element = document.createElement(tagString), + $element = jQuery(element); + + if (id) { + $element.attr('id', id); + this.elementId = null; + } + if (classes) { + $element.attr('class', classes.join(' ')); + this.classes = null; + this.elementClasses = null; + } + + if (style) { + for (prop in style) { + if (style.hasOwnProperty(prop)) { + styleBuffer += (prop + ':' + style[prop] + ';'); + } + } + + $element.attr('style', styleBuffer); + + this.elementStyle = null; + } + + if (attrs) { + for (attr in attrs) { + if (attrs.hasOwnProperty(attr)) { + $element.attr(attr, attrs[attr]); + } + } + + this.elementAttributes = null; + } + + if (props) { + for (prop in props) { + if (props.hasOwnProperty(prop)) { + $element.prop(prop, props[prop]); + } + } + + this.elementProperties = null; + } + + return element; + }, + + /** + @method element + @return {DOMElement} The element corresponding to the generated HTML + of this buffer + */ + element: function() { + var html = this.innerString(); + + if (html) { + this._element = setInnerHTML(this._element, html); + } + + return this._element; + }, + + /** + Generates the HTML content for this buffer. + + @method string + @return {String} The generated HTML + */ + string: function() { + if (this._hasElement && this._element) { + // Firefox versions < 11 do not have support for element.outerHTML. + var thisElement = this.element(), outerHTML = thisElement.outerHTML; + if (typeof outerHTML === 'undefined') { + return jQuery('
    ').append(thisElement).html(); + } + return outerHTML; + } else { + return this.innerString(); + } + }, + + innerString: function() { + return this.buffer; + } + }; + + __exports__["default"] = RenderBuffer; + }); +define("ember-views/system/utils", + ["ember-metal/core","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert + + /** + @module ember + @submodule ember-views + */ + + /* BEGIN METAMORPH HELPERS */ + + // Internet Explorer prior to 9 does not allow setting innerHTML if the first element + // is a "zero-scope" element. This problem can be worked around by making + // the first node an invisible text node. We, like Modernizr, use ­ + + var needsShy = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "
    "; + testEl.firstChild.innerHTML = ""; + return testEl.firstChild.innerHTML === ''; + })(); + + // IE 8 (and likely earlier) likes to move whitespace preceeding + // a script tag to appear after it. This means that we can + // accidentally remove whitespace when updating a morph. + var movesWhitespace = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "Test: Value"; + return testEl.childNodes[0].nodeValue === 'Test:' && + testEl.childNodes[2].nodeValue === ' Value'; + })(); + + // Use this to find children by ID instead of using jQuery + var findChildById = function(element, id) { + if (element.getAttribute('id') === id) { return element; } + + var len = element.childNodes.length, idx, node, found; + for (idx=0; idx 0) { + var len = matches.length, idx; + for (idx=0; idxTest'); + canSet = el.options.length === 1; + } + + innerHTMLTags[tagName] = canSet; + + return canSet; + }; + + var setInnerHTML = function(element, html) { + var tagName = element.tagName; + + if (canSetInnerHTML(tagName)) { + setInnerHTMLWithoutFix(element, html); + } else { + // Firefox versions < 11 do not have support for element.outerHTML. + var outerHTML = element.outerHTML || new XMLSerializer().serializeToString(element); + Ember.assert("Can't set innerHTML on "+element.tagName+" in this browser", outerHTML); + + var startTag = outerHTML.match(new RegExp("<"+tagName+"([^>]*)>", 'i'))[0], + endTag = ''; + + var wrapper = document.createElement('div'); + setInnerHTMLWithoutFix(wrapper, startTag + html + endTag); + element = wrapper.firstChild; + while (element.tagName !== tagName) { + element = element.nextSibling; + } + } + + return element; + }; + + function isSimpleClick(event) { + var modifier = event.shiftKey || event.metaKey || event.altKey || event.ctrlKey, + secondaryClick = event.which > 1; // IE9 may return undefined + + return !modifier && !secondaryClick; + } + + __exports__.setInnerHTML = setInnerHTML; + __exports__.isSimpleClick = isSimpleClick; + }); +define("ember-views/views/collection_view", + ["ember-metal/core","ember-metal/platform","ember-metal/merge","ember-metal/property_get","ember-metal/property_set","ember-runtime/system/string","ember-views/views/container_view","ember-views/views/view","ember-metal/mixin","ember-runtime/mixins/array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-views + */ + + var Ember = __dependency1__["default"]; + // Ember.assert + var create = __dependency2__.create; + var merge = __dependency3__["default"]; + var get = __dependency4__.get; + var set = __dependency5__.set; + var fmt = __dependency6__.fmt; + var ContainerView = __dependency7__["default"]; + var CoreView = __dependency8__.CoreView; + var View = __dependency8__.View; + var observer = __dependency9__.observer; + var beforeObserver = __dependency9__.beforeObserver; + var EmberArray = __dependency10__["default"]; + + /** + `Ember.CollectionView` is an `Ember.View` descendent responsible for managing + a collection (an array or array-like object) by maintaining a child view object + and associated DOM representation for each item in the array and ensuring + that child views and their associated rendered HTML are updated when items in + the array are added, removed, or replaced. + + ## Setting content + + The managed collection of objects is referenced as the `Ember.CollectionView` + instance's `content` property. + + ```javascript + someItemsView = Ember.CollectionView.create({ + content: ['A', 'B','C'] + }) + ``` + + The view for each item in the collection will have its `content` property set + to the item. + + ## Specifying itemViewClass + + By default the view class for each item in the managed collection will be an + instance of `Ember.View`. You can supply a different class by setting the + `CollectionView`'s `itemViewClass` property. + + Given an empty `` and the following code: + + ```javascript + someItemsView = Ember.CollectionView.create({ + classNames: ['a-collection'], + content: ['A','B','C'], + itemViewClass: Ember.View.extend({ + template: Ember.Handlebars.compile("the letter: {{view.content}}") + }) + }); + + someItemsView.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
    +
    the letter: A
    +
    the letter: B
    +
    the letter: C
    +
    + ``` + + ## Automatic matching of parent/child tagNames + + Setting the `tagName` property of a `CollectionView` to any of + "ul", "ol", "table", "thead", "tbody", "tfoot", "tr", or "select" will result + in the item views receiving an appropriately matched `tagName` property. + + Given an empty `` and the following code: + + ```javascript + anUnorderedListView = Ember.CollectionView.create({ + tagName: 'ul', + content: ['A','B','C'], + itemViewClass: Ember.View.extend({ + template: Ember.Handlebars.compile("the letter: {{view.content}}") + }) + }); + + anUnorderedListView.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
      +
    • the letter: A
      • +
    • the letter: B
      • +
    • the letter: C
      • +
    + ``` + + Additional `tagName` pairs can be provided by adding to + `Ember.CollectionView.CONTAINER_MAP ` + + ```javascript + Ember.CollectionView.CONTAINER_MAP['article'] = 'section' + ``` + + ## Programmatic creation of child views + + For cases where additional customization beyond the use of a single + `itemViewClass` or `tagName` matching is required CollectionView's + `createChildView` method can be overidden: + + ```javascript + CustomCollectionView = Ember.CollectionView.extend({ + createChildView: function(viewClass, attrs) { + if (attrs.content.kind == 'album') { + viewClass = App.AlbumView; + } else { + viewClass = App.SongView; + } + return this._super(viewClass, attrs); + } + }); + ``` + + ## Empty View + + You can provide an `Ember.View` subclass to the `Ember.CollectionView` + instance as its `emptyView` property. If the `content` property of a + `CollectionView` is set to `null` or an empty array, an instance of this view + will be the `CollectionView`s only child. + + ```javascript + aListWithNothing = Ember.CollectionView.create({ + classNames: ['nothing'] + content: null, + emptyView: Ember.View.extend({ + template: Ember.Handlebars.compile("The collection is empty") + }) + }); + + aListWithNothing.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
    +
    + The collection is empty +
    +
    + ``` + + ## Adding and Removing items + + The `childViews` property of a `CollectionView` should not be directly + manipulated. Instead, add, remove, replace items from its `content` property. + This will trigger appropriate changes to its rendered HTML. + + + @class CollectionView + @namespace Ember + @extends Ember.ContainerView + @since Ember 0.9 + */ + var CollectionView = ContainerView.extend({ + + /** + A list of items to be displayed by the `Ember.CollectionView`. + + @property content + @type Ember.Array + @default null + */ + content: null, + + /** + This provides metadata about what kind of empty view class this + collection would like if it is being instantiated from another + system (like Handlebars) + + @private + @property emptyViewClass + */ + emptyViewClass: View, + + /** + An optional view to display if content is set to an empty array. + + @property emptyView + @type Ember.View + @default null + */ + emptyView: null, + + /** + @property itemViewClass + @type Ember.View + @default Ember.View + */ + itemViewClass: View, + + /** + Setup a CollectionView + + @method init + */ + init: function() { + var ret = this._super(); + this._contentDidChange(); + return ret; + }, + + /** + Invoked when the content property is about to change. Notifies observers that the + entire array content will change. + + @private + @method _contentWillChange + */ + _contentWillChange: beforeObserver('content', function() { + var content = this.get('content'); + + if (content) { content.removeArrayObserver(this); } + var len = content ? get(content, 'length') : 0; + this.arrayWillChange(content, 0, len); + }), + + /** + Check to make sure that the content has changed, and if so, + update the children directly. This is always scheduled + asynchronously, to allow the element to be created before + bindings have synchronized and vice versa. + + @private + @method _contentDidChange + */ + _contentDidChange: observer('content', function() { + var content = get(this, 'content'); + + if (content) { + this._assertArrayLike(content); + content.addArrayObserver(this); + } + + var len = content ? get(content, 'length') : 0; + this.arrayDidChange(content, 0, null, len); + }), + + /** + Ensure that the content implements Ember.Array + + @private + @method _assertArrayLike + */ + _assertArrayLike: function(content) { + Ember.assert(fmt("an Ember.CollectionView's content must implement Ember.Array. You passed %@", [content]), EmberArray.detect(content)); + }, + + /** + Removes the content and content observers. + + @method destroy + */ + destroy: function() { + if (!this._super()) { return; } + + var content = get(this, 'content'); + if (content) { content.removeArrayObserver(this); } + + if (this._createdEmptyView) { + this._createdEmptyView.destroy(); + } + + return this; + }, + + /** + Called when a mutation to the underlying content array will occur. + + This method will remove any views that are no longer in the underlying + content array. + + Invokes whenever the content array itself will change. + + @method arrayWillChange + @param {Array} content the managed collection of objects + @param {Number} start the index at which the changes will occurr + @param {Number} removed number of object to be removed from content + */ + arrayWillChange: function(content, start, removedCount) { + // If the contents were empty before and this template collection has an + // empty view remove it now. + var emptyView = get(this, 'emptyView'); + if (emptyView && emptyView instanceof View) { + emptyView.removeFromParent(); + } + + // Loop through child views that correspond with the removed items. + // Note that we loop from the end of the array to the beginning because + // we are mutating it as we go. + var childViews = this._childViews, childView, idx, len; + + len = this._childViews.length; + + var removingAll = removedCount === len; + + if (removingAll) { + this.currentState.empty(this); + this.invokeRecursively(function(view) { + view.removedFromDOM = true; + }, false); + } + + for (idx = start + removedCount - 1; idx >= start; idx--) { + childView = childViews[idx]; + childView.destroy(); + } + }, + + /** + Called when a mutation to the underlying content array occurs. + + This method will replay that mutation against the views that compose the + `Ember.CollectionView`, ensuring that the view reflects the model. + + This array observer is added in `contentDidChange`. + + @method arrayDidChange + @param {Array} content the managed collection of objects + @param {Number} start the index at which the changes occurred + @param {Number} removed number of object removed from content + @param {Number} added number of object added to content + */ + arrayDidChange: function(content, start, removed, added) { + var addedViews = [], view, item, idx, len, itemViewClass, + emptyView; + + len = content ? get(content, 'length') : 0; + + if (len) { + itemViewClass = get(this, 'itemViewClass'); + + if ('string' === typeof itemViewClass) { + itemViewClass = get(itemViewClass) || itemViewClass; + } + + Ember.assert(fmt("itemViewClass must be a subclass of Ember.View, not %@", + [itemViewClass]), + 'string' === typeof itemViewClass || View.detect(itemViewClass)); + + for (idx = start; idx < start+added; idx++) { + item = content.objectAt(idx); + + view = this.createChildView(itemViewClass, { + content: item, + contentIndex: idx + }); + + addedViews.push(view); + } + } else { + emptyView = get(this, 'emptyView'); + + if (!emptyView) { return; } + + if ('string' === typeof emptyView) { + emptyView = get(emptyView) || emptyView; + } + + emptyView = this.createChildView(emptyView); + addedViews.push(emptyView); + set(this, 'emptyView', emptyView); + + if (CoreView.detect(emptyView)) { + this._createdEmptyView = emptyView; + } + } + + this.replace(start, 0, addedViews); + }, + + /** + Instantiates a view to be added to the childViews array during view + initialization. You generally will not call this method directly unless + you are overriding `createChildViews()`. Note that this method will + automatically configure the correct settings on the new view instance to + act as a child of the parent. + + The tag name for the view will be set to the tagName of the viewClass + passed in. + + @method createChildView + @param {Class} viewClass + @param {Hash} [attrs] Attributes to add + @return {Ember.View} new instance + */ + createChildView: function(view, attrs) { + view = this._super(view, attrs); + + var itemTagName = get(view, 'tagName'); + + if (itemTagName === null || itemTagName === undefined) { + itemTagName = CollectionView.CONTAINER_MAP[get(this, 'tagName')]; + set(view, 'tagName', itemTagName); + } + + return view; + } + }); + + /** + A map of parent tags to their default child tags. You can add + additional parent tags if you want collection views that use + a particular parent tag to default to a child tag. + + @property CONTAINER_MAP + @type Hash + @static + @final + */ + CollectionView.CONTAINER_MAP = { + ul: 'li', + ol: 'li', + table: 'tr', + thead: 'tr', + tbody: 'tr', + tfoot: 'tr', + tr: 'td', + select: 'option' + }; + + __exports__["default"] = CollectionView; + }); +define("ember-views/views/component", + ["ember-metal/core","ember-views/mixins/component_template_deprecation","ember-runtime/mixins/target_action_support","ember-views/views/view","ember-metal/property_get","ember-metal/property_set","ember-metal/is_none","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.Handlebars + + var ComponentTemplateDeprecation = __dependency2__["default"]; + var TargetActionSupport = __dependency3__["default"]; + var View = __dependency4__.View;var get = __dependency5__.get; + var set = __dependency6__.set; + var isNone = __dependency7__.isNone; + + var computed = __dependency8__.computed; + + var a_slice = Array.prototype.slice; + + /** + @module ember + @submodule ember-views + */ + + /** + An `Ember.Component` is a view that is completely + isolated. Property access in its templates go + to the view object and actions are targeted at + the view object. There is no access to the + surrounding context or outer controller; all + contextual information must be passed in. + + The easiest way to create an `Ember.Component` is via + a template. If you name a template + `components/my-foo`, you will be able to use + `{{my-foo}}` in other templates, which will make + an instance of the isolated component. + + ```handlebars + {{app-profile person=currentUser}} + ``` + + ```handlebars + +

    {{person.title}}

    + +

    {{person.signature}}

    + ``` + + You can use `yield` inside a template to + include the **contents** of any block attached to + the component. The block will be executed in the + context of the surrounding context or outer controller: + + ```handlebars + {{#app-profile person=currentUser}} +

    Admin mode

    + {{! Executed in the controller's context. }} + {{/app-profile}} + ``` + + ```handlebars + +

    {{person.title}}

    + {{! Executed in the components context. }} + {{yield}} {{! block contents }} + ``` + + If you want to customize the component, in order to + handle events or actions, you implement a subclass + of `Ember.Component` named after the name of the + component. Note that `Component` needs to be appended to the name of + your subclass like `AppProfileComponent`. + + For example, you could implement the action + `hello` for the `app-profile` component: + + ```javascript + App.AppProfileComponent = Ember.Component.extend({ + actions: { + hello: function(name) { + console.log("Hello", name); + } + } + }); + ``` + + And then use it in the component's template: + + ```handlebars + + +

    {{person.title}}

    + {{yield}} + + + ``` + + Components must have a `-` in their name to avoid + conflicts with built-in controls that wrap HTML + elements. This is consistent with the same + requirement in web components. + + @class Component + @namespace Ember + @extends Ember.View + */ + var Component = View.extend(TargetActionSupport, ComponentTemplateDeprecation, { + init: function() { + this._super(); + set(this, 'context', this); + set(this, 'controller', this); + }, + + defaultLayout: function(context, options){ + Ember.Handlebars.helpers['yield'].call(context, options); + }, + + /** + A components template property is set by passing a block + during its invocation. It is executed within the parent context. + + Example: + + ```handlebars + {{#my-component}} + // something that is run in the context + // of the parent context + {{/my-component}} + ``` + + Specifying a template directly to a component is deprecated without + also specifying the layout property. + + @deprecated + @property template + */ + template: computed(function(key, value) { + if (value !== undefined) { return value; } + + var templateName = get(this, 'templateName'), + template = this.templateForName(templateName, 'template'); + + Ember.assert("You specified the templateName " + templateName + " for " + this + ", but it did not exist.", !templateName || template); + + return template || get(this, 'defaultTemplate'); + }).property('templateName'), + + /** + Specifying a components `templateName` is deprecated without also + providing the `layout` or `layoutName` properties. + + @deprecated + @property templateName + */ + templateName: null, + + // during render, isolate keywords + cloneKeywords: function() { + return { + view: this, + controller: this + }; + }, + + _yield: function(context, options) { + var view = options.data.view, + parentView = this._parentView, + template = get(this, 'template'); + + if (template) { + Ember.assert("A Component must have a parent view in order to yield.", parentView); + + view.appendChild(View, { + isVirtual: true, + tagName: '', + _contextView: parentView, + template: template, + context: get(parentView, 'context'), + controller: get(parentView, 'controller'), + templateData: { keywords: parentView.cloneKeywords() } + }); + } + }, + + /** + If the component is currently inserted into the DOM of a parent view, this + property will point to the controller of the parent view. + + @property targetObject + @type Ember.Controller + @default null + */ + targetObject: computed(function(key) { + var parentView = get(this, '_parentView'); + return parentView ? get(parentView, 'controller') : null; + }).property('_parentView'), + + /** + Triggers a named action on the controller context where the component is used if + this controller has registered for notifications of the action. + + For example a component for playing or pausing music may translate click events + into action notifications of "play" or "stop" depending on some internal state + of the component: + + + ```javascript + App.PlayButtonComponent = Ember.Component.extend({ + click: function(){ + if (this.get('isPlaying')) { + this.sendAction('play'); + } else { + this.sendAction('stop'); + } + } + }); + ``` + + When used inside a template these component actions are configured to + trigger actions in the outer application context: + + ```handlebars + {{! application.hbs }} + {{play-button play="musicStarted" stop="musicStopped"}} + ``` + + When the component receives a browser `click` event it translate this + interaction into application-specific semantics ("play" or "stop") and + triggers the specified action name on the controller for the template + where the component is used: + + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + actions: { + musicStarted: function(){ + // called when the play button is clicked + // and the music started playing + }, + musicStopped: function(){ + // called when the play button is clicked + // and the music stopped playing + } + } + }); + ``` + + If no action name is passed to `sendAction` a default name of "action" + is assumed. + + ```javascript + App.NextButtonComponent = Ember.Component.extend({ + click: function(){ + this.sendAction(); + } + }); + ``` + + ```handlebars + {{! application.hbs }} + {{next-button action="playNextSongInAlbum"}} + ``` + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + actions: { + playNextSongInAlbum: function(){ + ... + } + } + }); + ``` + + @method sendAction + @param [action] {String} the action to trigger + @param [context] {*} a context to send with the action + */ + sendAction: function(action) { + var actionName, + contexts = a_slice.call(arguments, 1); + + // Send the default action + if (action === undefined) { + actionName = get(this, 'action'); + Ember.assert("The default action was triggered on the component " + this.toString() + + ", but the action name (" + actionName + ") was not a string.", + isNone(actionName) || typeof actionName === 'string'); + } else { + actionName = get(this, action); + Ember.assert("The " + action + " action was triggered on the component " + + this.toString() + ", but the action name (" + actionName + + ") was not a string.", + isNone(actionName) || typeof actionName === 'string'); + } + + // If no action name for that action could be found, just abort. + if (actionName === undefined) { return; } + + this.triggerAction({ + action: actionName, + actionContext: contexts + }); + } + }); + + __exports__["default"] = Component; + }); +define("ember-views/views/container_view", + ["ember-metal/core","ember-metal/merge","ember-runtime/mixins/mutable_array","ember-metal/property_get","ember-metal/property_set","ember-views/views/view","ember-views/views/states","ember-metal/error","ember-metal/enumerable_utils","ember-metal/computed","ember-metal/run_loop","ember-metal/properties","ember-views/system/render_buffer","ember-metal/mixin","ember-runtime/system/native_array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.K + + var merge = __dependency2__["default"]; + var MutableArray = __dependency3__["default"]; + var get = __dependency4__.get; + var set = __dependency5__.set; + + var View = __dependency6__.View; + var ViewCollection = __dependency6__.ViewCollection; + var cloneStates = __dependency7__.cloneStates; + var EmberViewStates = __dependency7__.states; + + var EmberError = __dependency8__["default"]; + + // ES6TODO: functions on EnumerableUtils should get their own export + var EnumerableUtils = __dependency9__["default"]; + var forEach = EnumerableUtils.forEach; + + var computed = __dependency10__.computed; + var run = __dependency11__["default"]; + var defineProperty = __dependency12__.defineProperty; + var RenderBuffer = __dependency13__["default"]; + var observer = __dependency14__.observer; + var beforeObserver = __dependency14__.beforeObserver; + var A = __dependency15__.A; + + /** + @module ember + @submodule ember-views + */ + + var states = cloneStates(EmberViewStates); + + /** + A `ContainerView` is an `Ember.View` subclass that implements `Ember.MutableArray` + allowing programmatic management of its child views. + + ## Setting Initial Child Views + + The initial array of child views can be set in one of two ways. You can + provide a `childViews` property at creation time that contains instance of + `Ember.View`: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: [Ember.View.create(), Ember.View.create()] + }); + ``` + + You can also provide a list of property names whose values are instances of + `Ember.View`: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: ['aView', 'bView', 'cView'], + aView: Ember.View.create(), + bView: Ember.View.create(), + cView: Ember.View.create() + }); + ``` + + The two strategies can be combined: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: ['aView', Ember.View.create()], + aView: Ember.View.create() + }); + ``` + + Each child view's rendering will be inserted into the container's rendered + HTML in the same order as its position in the `childViews` property. + + ## Adding and Removing Child Views + + The container view implements `Ember.MutableArray` allowing programmatic management of its child views. + + To remove a view, pass that view into a `removeObject` call on the container view. + + Given an empty `` the following code + + ```javascript + aContainer = Ember.ContainerView.create({ + classNames: ['the-container'], + childViews: ['aView', 'bView'], + aView: Ember.View.create({ + template: Ember.Handlebars.compile("A") + }), + bView: Ember.View.create({ + template: Ember.Handlebars.compile("B") + }) + }); + + aContainer.appendTo('body'); + ``` + + Results in the HTML + + ```html +
    +
    A
    +
    B
    +
    + ``` + + Removing a view + + ```javascript + aContainer.toArray(); // [aContainer.aView, aContainer.bView] + aContainer.removeObject(aContainer.get('bView')); + aContainer.toArray(); // [aContainer.aView] + ``` + + Will result in the following HTML + + ```html +
    +
    A
    +
    + ``` + + Similarly, adding a child view is accomplished by adding `Ember.View` instances to the + container view. + + Given an empty `` the following code + + ```javascript + aContainer = Ember.ContainerView.create({ + classNames: ['the-container'], + childViews: ['aView', 'bView'], + aView: Ember.View.create({ + template: Ember.Handlebars.compile("A") + }), + bView: Ember.View.create({ + template: Ember.Handlebars.compile("B") + }) + }); + + aContainer.appendTo('body'); + ``` + + Results in the HTML + + ```html +
    +
    A
    +
    B
    +
    + ``` + + Adding a view + + ```javascript + AnotherViewClass = Ember.View.extend({ + template: Ember.Handlebars.compile("Another view") + }); + + aContainer.toArray(); // [aContainer.aView, aContainer.bView] + aContainer.pushObject(AnotherViewClass.create()); + aContainer.toArray(); // [aContainer.aView, aContainer.bView, ] + ``` + + Will result in the following HTML + + ```html +
    +
    A
    +
    B
    +
    Another view
    +
    + ``` + + ## Templates and Layout + + A `template`, `templateName`, `defaultTemplate`, `layout`, `layoutName` or + `defaultLayout` property on a container view will not result in the template + or layout being rendered. The HTML contents of a `Ember.ContainerView`'s DOM + representation will only be the rendered HTML of its child views. + + @class ContainerView + @namespace Ember + @extends Ember.View + */ + var ContainerView = View.extend(MutableArray, { + states: states, + + init: function() { + this._super(); + + var childViews = get(this, 'childViews'); + + // redefine view's childViews property that was obliterated + defineProperty(this, 'childViews', View.childViewsProperty); + + var _childViews = this._childViews; + + forEach(childViews, function(viewName, idx) { + var view; + + if ('string' === typeof viewName) { + view = get(this, viewName); + view = this.createChildView(view); + set(this, viewName, view); + } else { + view = this.createChildView(viewName); + } + + _childViews[idx] = view; + }, this); + + var currentView = get(this, 'currentView'); + if (currentView) { + if (!_childViews.length) { _childViews = this._childViews = this._childViews.slice(); } + _childViews.push(this.createChildView(currentView)); + } + }, + + replace: function(idx, removedCount, addedViews) { + var addedCount = addedViews ? get(addedViews, 'length') : 0; + var self = this; + Ember.assert("You can't add a child to a container that is already a child of another view", A(addedViews).every(function(item) { return !get(item, '_parentView') || get(item, '_parentView') === self; })); + + this.arrayContentWillChange(idx, removedCount, addedCount); + this.childViewsWillChange(this._childViews, idx, removedCount); + + if (addedCount === 0) { + this._childViews.splice(idx, removedCount) ; + } else { + var args = [idx, removedCount].concat(addedViews); + if (addedViews.length && !this._childViews.length) { this._childViews = this._childViews.slice(); } + this._childViews.splice.apply(this._childViews, args); + } + + this.arrayContentDidChange(idx, removedCount, addedCount); + this.childViewsDidChange(this._childViews, idx, removedCount, addedCount); + + return this; + }, + + objectAt: function(idx) { + return this._childViews[idx]; + }, + + length: computed(function () { + return this._childViews.length; + }).volatile(), + + /** + Instructs each child view to render to the passed render buffer. + + @private + @method render + @param {Ember.RenderBuffer} buffer the buffer to render to + */ + render: function(buffer) { + this.forEachChildView(function(view) { + view.renderToBuffer(buffer); + }); + }, + + instrumentName: 'container', + + /** + When a child view is removed, destroy its element so that + it is removed from the DOM. + + The array observer that triggers this action is set up in the + `renderToBuffer` method. + + @private + @method childViewsWillChange + @param {Ember.Array} views the child views array before mutation + @param {Number} start the start position of the mutation + @param {Number} removed the number of child views removed + **/ + childViewsWillChange: function(views, start, removed) { + this.propertyWillChange('childViews'); + + if (removed > 0) { + var changedViews = views.slice(start, start+removed); + // transition to preRender before clearing parentView + this.currentState.childViewsWillChange(this, views, start, removed); + this.initializeViews(changedViews, null, null); + } + }, + + removeChild: function(child) { + this.removeObject(child); + return this; + }, + + /** + When a child view is added, make sure the DOM gets updated appropriately. + + If the view has already rendered an element, we tell the child view to + create an element and insert it into the DOM. If the enclosing container + view has already written to a buffer, but not yet converted that buffer + into an element, we insert the string representation of the child into the + appropriate place in the buffer. + + @private + @method childViewsDidChange + @param {Ember.Array} views the array of child views after the mutation has occurred + @param {Number} start the start position of the mutation + @param {Number} removed the number of child views removed + @param {Number} the number of child views added + */ + childViewsDidChange: function(views, start, removed, added) { + if (added > 0) { + var changedViews = views.slice(start, start+added); + this.initializeViews(changedViews, this, get(this, 'templateData')); + this.currentState.childViewsDidChange(this, views, start, added); + } + this.propertyDidChange('childViews'); + }, + + initializeViews: function(views, parentView, templateData) { + forEach(views, function(view) { + set(view, '_parentView', parentView); + + if (!view.container && parentView) { + set(view, 'container', parentView.container); + } + + if (!get(view, 'templateData')) { + set(view, 'templateData', templateData); + } + }); + }, + + currentView: null, + + _currentViewWillChange: beforeObserver('currentView', function() { + var currentView = get(this, 'currentView'); + if (currentView) { + currentView.destroy(); + } + }), + + _currentViewDidChange: observer('currentView', function() { + var currentView = get(this, 'currentView'); + if (currentView) { + Ember.assert("You tried to set a current view that already has a parent. Make sure you don't have multiple outlets in the same view.", !get(currentView, '_parentView')); + this.pushObject(currentView); + } + }), + + _ensureChildrenAreInDOM: function () { + this.currentState.ensureChildrenAreInDOM(this); + } + }); + + merge(states._default, { + childViewsWillChange: Ember.K, + childViewsDidChange: Ember.K, + ensureChildrenAreInDOM: Ember.K + }); + + merge(states.inBuffer, { + childViewsDidChange: function(parentView, views, start, added) { + throw new EmberError('You cannot modify child views while in the inBuffer state'); + } + }); + + merge(states.hasElement, { + childViewsWillChange: function(view, views, start, removed) { + for (var i=start; i + ``` + + ## HTML `class` Attribute + + The HTML `class` attribute of a view's tag can be set by providing a + `classNames` property that is set to an array of strings: + + ```javascript + MyView = Ember.View.extend({ + classNames: ['my-class', 'my-other-class'] + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + `class` attribute values can also be set by providing a `classNameBindings` + property set to an array of properties names for the view. The return value + of these properties will be added as part of the value for the view's `class` + attribute. These properties can be computed properties: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['propertyA', 'propertyB'], + propertyA: 'from-a', + propertyB: function() { + if (someLogic) { return 'from-b'; } + }.property() + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + If the value of a class name binding returns a boolean the property name + itself will be used as the class name if the property is true. The class name + will not be added if the value is `false` or `undefined`. + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['hovered'], + hovered: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When using boolean class name bindings you can supply a string value other + than the property name for use as the `class` HTML attribute by appending the + preferred value after a ":" character when defining the binding: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['awesome:so-very-cool'], + awesome: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + Boolean value class name bindings whose property names are in a + camelCase-style format will be converted to a dasherized format: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['isUrgent'], + isUrgent: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + Class name bindings can also refer to object values that are found by + traversing a path relative to the view itself: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['messages.empty'] + messages: Ember.Object.create({ + empty: true + }) + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + If you want to add a class name for a property which evaluates to true and + and a different class name if it evaluates to false, you can pass a binding + like this: + + ```javascript + // Applies 'enabled' class when isEnabled is true and 'disabled' when isEnabled is false + Ember.View.extend({ + classNameBindings: ['isEnabled:enabled:disabled'] + isEnabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When isEnabled is `false`, the resulting HTML reprensentation looks like + this: + + ```html +
    + ``` + + This syntax offers the convenience to add a class if a property is `false`: + + ```javascript + // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false + Ember.View.extend({ + classNameBindings: ['isEnabled::disabled'] + isEnabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When the `isEnabled` property on the view is set to `false`, it will result + in view instances with an HTML representation of: + + ```html +
    + ``` + + Updates to the the value of a class name binding will result in automatic + update of the HTML `class` attribute in the view's rendered HTML + representation. If the value becomes `false` or `undefined` the class name + will be removed. + + Both `classNames` and `classNameBindings` are concatenated properties. See + [Ember.Object](/api/classes/Ember.Object.html) documentation for more + information about concatenated properties. + + ## HTML Attributes + + The HTML attribute section of a view's tag can be set by providing an + `attributeBindings` property set to an array of property names on the view. + The return value of these properties will be used as the value of the view's + HTML associated attribute: + + ```javascript + AnchorView = Ember.View.extend({ + tagName: 'a', + attributeBindings: ['href'], + href: 'http://google.com' + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html + + ``` + + If the return value of an `attributeBindings` monitored property is a boolean + the property will follow HTML's pattern of repeating the attribute's name as + its value: + + ```javascript + MyTextInput = Ember.View.extend({ + tagName: 'input', + attributeBindings: ['disabled'], + disabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html + + ``` + + `attributeBindings` can refer to computed properties: + + ```javascript + MyTextInput = Ember.View.extend({ + tagName: 'input', + attributeBindings: ['disabled'], + disabled: function() { + if (someLogic) { + return true; + } else { + return false; + } + }.property() + }); + ``` + + Updates to the the property of an attribute binding will result in automatic + update of the HTML attribute in the view's rendered HTML representation. + + `attributeBindings` is a concatenated property. See [Ember.Object](/api/classes/Ember.Object.html) + documentation for more information about concatenated properties. + + ## Templates + + The HTML contents of a view's rendered representation are determined by its + template. Templates can be any function that accepts an optional context + parameter and returns a string of HTML that will be inserted within the + view's tag. Most typically in Ember this function will be a compiled + `Ember.Handlebars` template. + + ```javascript + AView = Ember.View.extend({ + template: Ember.Handlebars.compile('I am the template') + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    I am the template
    + ``` + + Within an Ember application is more common to define a Handlebars templates as + part of a page: + + ```html + + ``` + + And associate it by name using a view's `templateName` property: + + ```javascript + AView = Ember.View.extend({ + templateName: 'some-template' + }); + ``` + + If you have nested resources, your Handlebars template will look like this: + + ```html + + ``` + + And `templateName` property: + + ```javascript + AView = Ember.View.extend({ + templateName: 'posts/new' + }); + ``` + + Using a value for `templateName` that does not have a Handlebars template + with a matching `data-template-name` attribute will throw an error. + + For views classes that may have a template later defined (e.g. as the block + portion of a `{{view}}` Handlebars helper call in another template or in + a subclass), you can provide a `defaultTemplate` property set to compiled + template function. If a template is not later provided for the view instance + the `defaultTemplate` value will be used: + + ```javascript + AView = Ember.View.extend({ + defaultTemplate: Ember.Handlebars.compile('I was the default'), + template: null, + templateName: null + }); + ``` + + Will result in instances with an HTML representation of: + + ```html +
    I was the default
    + ``` + + If a `template` or `templateName` is provided it will take precedence over + `defaultTemplate`: + + ```javascript + AView = Ember.View.extend({ + defaultTemplate: Ember.Handlebars.compile('I was the default') + }); + + aView = AView.create({ + template: Ember.Handlebars.compile('I was the template, not default') + }); + ``` + + Will result in the following HTML representation when rendered: + + ```html +
    I was the template, not default
    + ``` + + ## View Context + + The default context of the compiled template is the view's controller: + + ```javascript + AView = Ember.View.extend({ + template: Ember.Handlebars.compile('Hello {{excitedGreeting}}') + }); + + aController = Ember.Object.create({ + firstName: 'Barry', + excitedGreeting: function() { + return this.get("content.firstName") + "!!!" + }.property() + }); + + aView = AView.create({ + controller: aController, + }); + ``` + + Will result in an HTML representation of: + + ```html +
    Hello Barry!!!
    + ``` + + A context can also be explicitly supplied through the view's `context` + property. If the view has neither `context` nor `controller` properties, the + `parentView`'s context will be used. + + ## Layouts + + Views can have a secondary template that wraps their main template. Like + primary templates, layouts can be any function that accepts an optional + context parameter and returns a string of HTML that will be inserted inside + view's tag. Views whose HTML element is self closing (e.g. ``) + cannot have a layout and this property will be ignored. + + Most typically in Ember a layout will be a compiled `Ember.Handlebars` + template. + + A view's layout can be set directly with the `layout` property or reference + an existing Handlebars template by name with the `layoutName` property. + + A template used as a layout must contain a single use of the Handlebars + `{{yield}}` helper. The HTML contents of a view's rendered `template` will be + inserted at this location: + + ```javascript + AViewWithLayout = Ember.View.extend({ + layout: Ember.Handlebars.compile("
    {{yield}}
    ") + template: Ember.Handlebars.compile("I got wrapped"), + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    +
    + I got wrapped +
    +
    + ``` + + See [Ember.Handlebars.helpers.yield](/api/classes/Ember.Handlebars.helpers.html#method_yield) + for more information. + + ## Responding to Browser Events + + Views can respond to user-initiated events in one of three ways: method + implementation, through an event manager, and through `{{action}}` helper use + in their template or layout. + + ### Method Implementation + + Views can respond to user-initiated events by implementing a method that + matches the event name. A `jQuery.Event` object will be passed as the + argument to this method. + + ```javascript + AView = Ember.View.extend({ + click: function(event) { + // will be called when when an instance's + // rendered element is clicked + } + }); + ``` + + ### Event Managers + + Views can define an object as their `eventManager` property. This object can + then implement methods that match the desired event names. Matching events + that occur on the view's rendered HTML or the rendered HTML of any of its DOM + descendants will trigger this method. A `jQuery.Event` object will be passed + as the first argument to the method and an `Ember.View` object as the + second. The `Ember.View` will be the view whose rendered HTML was interacted + with. This may be the view with the `eventManager` property or one of its + descendent views. + + ```javascript + AView = Ember.View.extend({ + eventManager: Ember.Object.create({ + doubleClick: function(event, view) { + // will be called when when an instance's + // rendered element or any rendering + // of this views's descendent + // elements is clicked + } + }) + }); + ``` + + An event defined for an event manager takes precedence over events of the + same name handled through methods on the view. + + ```javascript + AView = Ember.View.extend({ + mouseEnter: function(event) { + // will never trigger. + }, + eventManager: Ember.Object.create({ + mouseEnter: function(event, view) { + // takes precedence over AView#mouseEnter + } + }) + }); + ``` + + Similarly a view's event manager will take precedence for events of any views + rendered as a descendent. A method name that matches an event name will not + be called if the view instance was rendered inside the HTML representation of + a view that has an `eventManager` property defined that handles events of the + name. Events not handled by the event manager will still trigger method calls + on the descendent. + + ```javascript + OuterView = Ember.View.extend({ + template: Ember.Handlebars.compile("outer {{#view InnerView}}inner{{/view}} outer"), + eventManager: Ember.Object.create({ + mouseEnter: function(event, view) { + // view might be instance of either + // OuterView or InnerView depending on + // where on the page the user interaction occured + } + }) + }); + + InnerView = Ember.View.extend({ + click: function(event) { + // will be called if rendered inside + // an OuterView because OuterView's + // eventManager doesn't handle click events + }, + mouseEnter: function(event) { + // will never be called if rendered inside + // an OuterView. + } + }); + ``` + + ### Handlebars `{{action}}` Helper + + See [Handlebars.helpers.action](/api/classes/Ember.Handlebars.helpers.html#method_action). + + ### Event Names + + All of the event handling approaches described above respond to the same set + of events. The names of the built-in events are listed below. (The hash of + built-in events exists in `Ember.EventDispatcher`.) Additional, custom events + can be registered by using `Ember.Application.customEvents`. + + Touch events: + + * `touchStart` + * `touchMove` + * `touchEnd` + * `touchCancel` + + Keyboard events + + * `keyDown` + * `keyUp` + * `keyPress` + + Mouse events + + * `mouseDown` + * `mouseUp` + * `contextMenu` + * `click` + * `doubleClick` + * `mouseMove` + * `focusIn` + * `focusOut` + * `mouseEnter` + * `mouseLeave` + + Form events: + + * `submit` + * `change` + * `focusIn` + * `focusOut` + * `input` + + HTML5 drag and drop events: + + * `dragStart` + * `drag` + * `dragEnter` + * `dragLeave` + * `dragOver` + * `dragEnd` + * `drop` + + ## Handlebars `{{view}}` Helper + + Other `Ember.View` instances can be included as part of a view's template by + using the `{{view}}` Handlebars helper. See [Ember.Handlebars.helpers.view](/api/classes/Ember.Handlebars.helpers.html#method_view) + for additional information. + + @class View + @namespace Ember + @extends Ember.CoreView + */ + var View = CoreView.extend({ + + concatenatedProperties: ['classNames', 'classNameBindings', 'attributeBindings'], + + /** + @property isView + @type Boolean + @default true + @static + */ + isView: true, + + // .......................................................... + // TEMPLATE SUPPORT + // + + /** + The name of the template to lookup if no template is provided. + + By default `Ember.View` will lookup a template with this name in + `Ember.TEMPLATES` (a shared global object). + + @property templateName + @type String + @default null + */ + templateName: null, + + /** + The name of the layout to lookup if no layout is provided. + + By default `Ember.View` will lookup a template with this name in + `Ember.TEMPLATES` (a shared global object). + + @property layoutName + @type String + @default null + */ + layoutName: null, + + /** + The template used to render the view. This should be a function that + accepts an optional context parameter and returns a string of HTML that + will be inserted into the DOM relative to its parent view. + + In general, you should set the `templateName` property instead of setting + the template yourself. + + @property template + @type Function + */ + template: computed('templateName', function(key, value) { + if (value !== undefined) { return value; } + + var templateName = get(this, 'templateName'), + template = this.templateForName(templateName, 'template'); + + Ember.assert("You specified the templateName " + templateName + " for " + this + ", but it did not exist.", !templateName || template); + + return template || get(this, 'defaultTemplate'); + }), + + /** + The controller managing this view. If this property is set, it will be + made available for use by the template. + + @property controller + @type Object + */ + controller: computed('_parentView', function(key) { + var parentView = get(this, '_parentView'); + return parentView ? get(parentView, 'controller') : null; + }), + + /** + A view may contain a layout. A layout is a regular template but + supersedes the `template` property during rendering. It is the + responsibility of the layout template to retrieve the `template` + property from the view (or alternatively, call `Handlebars.helpers.yield`, + `{{yield}}`) to render it in the correct location. + + This is useful for a view that has a shared wrapper, but which delegates + the rendering of the contents of the wrapper to the `template` property + on a subclass. + + @property layout + @type Function + */ + layout: computed(function(key) { + var layoutName = get(this, 'layoutName'), + layout = this.templateForName(layoutName, 'layout'); + + Ember.assert("You specified the layoutName " + layoutName + " for " + this + ", but it did not exist.", !layoutName || layout); + + return layout || get(this, 'defaultLayout'); + }).property('layoutName'), + + _yield: function(context, options) { + var template = get(this, 'template'); + if (template) { template(context, options); } + }, + + templateForName: function(name, type) { + if (!name) { return; } + Ember.assert("templateNames are not allowed to contain periods: "+name, name.indexOf('.') === -1); + + // the defaultContainer is deprecated + var container = this.container || (Container && Container.defaultContainer); + return container && container.lookup('template:' + name); + }, + + /** + The object from which templates should access properties. + + This object will be passed to the template function each time the render + method is called, but it is up to the individual function to decide what + to do with it. + + By default, this will be the view's controller. + + @property context + @type Object + */ + context: computed(function(key, value) { + if (arguments.length === 2) { + set(this, '_context', value); + return value; + } else { + return get(this, '_context'); + } + }).volatile(), + + /** + Private copy of the view's template context. This can be set directly + by Handlebars without triggering the observer that causes the view + to be re-rendered. + + The context of a view is looked up as follows: + + 1. Supplied context (usually by Handlebars) + 2. Specified controller + 3. `parentView`'s context (for a child of a ContainerView) + + The code in Handlebars that overrides the `_context` property first + checks to see whether the view has a specified controller. This is + something of a hack and should be revisited. + + @property _context + @private + */ + _context: computed(function(key) { + var parentView, controller; + + if (controller = get(this, 'controller')) { + return controller; + } + + parentView = this._parentView; + if (parentView) { + return get(parentView, '_context'); + } + + return null; + }), + + /** + If a value that affects template rendering changes, the view should be + re-rendered to reflect the new value. + + @method _contextDidChange + @private + */ + _contextDidChange: observer('context', function() { + this.rerender(); + }), + + /** + If `false`, the view will appear hidden in DOM. + + @property isVisible + @type Boolean + @default null + */ + isVisible: true, + + /** + Array of child views. You should never edit this array directly. + Instead, use `appendChild` and `removeFromParent`. + + @property childViews + @type Array + @default [] + @private + */ + childViews: childViewsProperty, + + _childViews: EMPTY_ARRAY, + + // When it's a virtual view, we need to notify the parent that their + // childViews will change. + _childViewsWillChange: beforeObserver('childViews', function() { + if (this.isVirtual) { + var parentView = get(this, 'parentView'); + if (parentView) { propertyWillChange(parentView, 'childViews'); } + } + }), + + // When it's a virtual view, we need to notify the parent that their + // childViews did change. + _childViewsDidChange: observer('childViews', function() { + if (this.isVirtual) { + var parentView = get(this, 'parentView'); + if (parentView) { propertyDidChange(parentView, 'childViews'); } + } + }), + + /** + Return the nearest ancestor that is an instance of the provided + class. + + @method nearestInstanceOf + @param {Class} klass Subclass of Ember.View (or Ember.View itself) + @return Ember.View + @deprecated + */ + nearestInstanceOf: function(klass) { + Ember.deprecate("nearestInstanceOf is deprecated and will be removed from future releases. Use nearestOfType."); + var view = get(this, 'parentView'); + + while (view) { + if (view instanceof klass) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor that is an instance of the provided + class or mixin. + + @method nearestOfType + @param {Class,Mixin} klass Subclass of Ember.View (or Ember.View itself), + or an instance of Ember.Mixin. + @return Ember.View + */ + nearestOfType: function(klass) { + var view = get(this, 'parentView'), + isOfType = klass instanceof Mixin ? + function(view) { return klass.detect(view); } : + function(view) { return klass.detect(view.constructor); }; + + while (view) { + if (isOfType(view)) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor that has a given property. + + @function nearestWithProperty + @param {String} property A property name + @return Ember.View + */ + nearestWithProperty: function(property) { + var view = get(this, 'parentView'); + + while (view) { + if (property in view) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor whose parent is an instance of + `klass`. + + @method nearestChildOf + @param {Class} klass Subclass of Ember.View (or Ember.View itself) + @return Ember.View + */ + nearestChildOf: function(klass) { + var view = get(this, 'parentView'); + + while (view) { + if (get(view, 'parentView') instanceof klass) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + When the parent view changes, recursively invalidate `controller` + + @method _parentViewDidChange + @private + */ + _parentViewDidChange: observer('_parentView', function() { + if (this.isDestroying) { return; } + + this.trigger('parentViewDidChange'); + + if (get(this, 'parentView.controller') && !get(this, 'controller')) { + this.notifyPropertyChange('controller'); + } + }), + + _controllerDidChange: observer('controller', function() { + if (this.isDestroying) { return; } + + this.rerender(); + + this.forEachChildView(function(view) { + view.propertyDidChange('controller'); + }); + }), + + cloneKeywords: function() { + var templateData = get(this, 'templateData'); + + var keywords = templateData ? copy(templateData.keywords) : {}; + set(keywords, 'view', get(this, 'concreteView')); + set(keywords, '_view', this); + set(keywords, 'controller', get(this, 'controller')); + + return keywords; + }, + + /** + Called on your view when it should push strings of HTML into a + `Ember.RenderBuffer`. Most users will want to override the `template` + or `templateName` properties instead of this method. + + By default, `Ember.View` will look for a function in the `template` + property and invoke it with the value of `context`. The value of + `context` will be the view's controller unless you override it. + + @method render + @param {Ember.RenderBuffer} buffer The render buffer + */ + render: function(buffer) { + // If this view has a layout, it is the responsibility of the + // the layout to render the view's template. Otherwise, render the template + // directly. + var template = get(this, 'layout') || get(this, 'template'); + + if (template) { + var context = get(this, 'context'); + var keywords = this.cloneKeywords(); + var output; + + var data = { + view: this, + buffer: buffer, + isRenderData: true, + keywords: keywords, + insideGroup: get(this, 'templateData.insideGroup') + }; + + // Invoke the template with the provided template context, which + // is the view's controller by default. A hash of data is also passed that provides + // the template with access to the view and render buffer. + + Ember.assert('template must be a function. Did you mean to call Ember.Handlebars.compile("...") or specify templateName instead?', typeof template === 'function'); + // The template should write directly to the render buffer instead + // of returning a string. + output = template(context, { data: data }); + + // If the template returned a string instead of writing to the buffer, + // push the string onto the buffer. + if (output !== undefined) { buffer.push(output); } + } + }, + + /** + Renders the view again. This will work regardless of whether the + view is already in the DOM or not. If the view is in the DOM, the + rendering process will be deferred to give bindings a chance + to synchronize. + + If children were added during the rendering process using `appendChild`, + `rerender` will remove them, because they will be added again + if needed by the next `render`. + + In general, if the display of your view changes, you should modify + the DOM element directly instead of manually calling `rerender`, which can + be slow. + + @method rerender + */ + rerender: function() { + return this.currentState.rerender(this); + }, + + clearRenderedChildren: function() { + var lengthBefore = this.lengthBeforeRender, + lengthAfter = this.lengthAfterRender; + + // If there were child views created during the last call to render(), + // remove them under the assumption that they will be re-created when + // we re-render. + + // VIEW-TODO: Unit test this path. + var childViews = this._childViews; + for (var i=lengthAfter-1; i>=lengthBefore; i--) { + if (childViews[i]) { childViews[i].destroy(); } + } + }, + + /** + Iterates over the view's `classNameBindings` array, inserts the value + of the specified property into the `classNames` array, then creates an + observer to update the view's element if the bound property ever changes + in the future. + + @method _applyClassNameBindings + @private + */ + _applyClassNameBindings: function(classBindings) { + var classNames = this.classNames, + elem, newClass, dasherizedClass; + + // Loop through all of the configured bindings. These will be either + // property names ('isUrgent') or property paths relative to the view + // ('content.isUrgent') + a_forEach(classBindings, function(binding) { + + Ember.assert("classNameBindings must not have spaces in them. Multiple class name bindings can be provided as elements of an array, e.g. ['foo', ':bar']", binding.indexOf(' ') === -1); + + // Variable in which the old class value is saved. The observer function + // closes over this variable, so it knows which string to remove when + // the property changes. + var oldClass; + // Extract just the property name from bindings like 'foo:bar' + var parsedPath = View._parsePropertyPath(binding); + + // Set up an observer on the context. If the property changes, toggle the + // class name. + var observer = function() { + // Get the current value of the property + newClass = this._classStringForProperty(binding); + elem = this.$(); + + // If we had previously added a class to the element, remove it. + if (oldClass) { + elem.removeClass(oldClass); + // Also remove from classNames so that if the view gets rerendered, + // the class doesn't get added back to the DOM. + classNames.removeObject(oldClass); + } + + // If necessary, add a new class. Make sure we keep track of it so + // it can be removed in the future. + if (newClass) { + elem.addClass(newClass); + oldClass = newClass; + } else { + oldClass = null; + } + }; + + // Get the class name for the property at its current value + dasherizedClass = this._classStringForProperty(binding); + + if (dasherizedClass) { + // Ensure that it gets into the classNames array + // so it is displayed when we render. + a_addObject(classNames, dasherizedClass); + + // Save a reference to the class name so we can remove it + // if the observer fires. Remember that this variable has + // been closed over by the observer. + oldClass = dasherizedClass; + } + + this.registerObserver(this, parsedPath.path, observer); + // Remove className so when the view is rerendered, + // the className is added based on binding reevaluation + this.one('willClearRender', function() { + if (oldClass) { + classNames.removeObject(oldClass); + oldClass = null; + } + }); + + }, this); + }, + + _unspecifiedAttributeBindings: null, + + /** + Iterates through the view's attribute bindings, sets up observers for each, + then applies the current value of the attributes to the passed render buffer. + + @method _applyAttributeBindings + @param {Ember.RenderBuffer} buffer + @private + */ + _applyAttributeBindings: function(buffer, attributeBindings) { + var attributeValue, + unspecifiedAttributeBindings = this._unspecifiedAttributeBindings = this._unspecifiedAttributeBindings || {}; + + a_forEach(attributeBindings, function(binding) { + var split = binding.split(':'), + property = split[0], + attributeName = split[1] || property; + + if (property in this) { + this._setupAttributeBindingObservation(property, attributeName); + + // Determine the current value and add it to the render buffer + // if necessary. + attributeValue = get(this, property); + View.applyAttributeBindings(buffer, attributeName, attributeValue); + } else { + unspecifiedAttributeBindings[property] = attributeName; + } + }, this); + + // Lazily setup setUnknownProperty after attributeBindings are initially applied + this.setUnknownProperty = this._setUnknownProperty; + }, + + _setupAttributeBindingObservation: function(property, attributeName) { + var attributeValue, elem; + + // Create an observer to add/remove/change the attribute if the + // JavaScript property changes. + var observer = function() { + elem = this.$(); + + attributeValue = get(this, property); + + View.applyAttributeBindings(elem, attributeName, attributeValue); + }; + + this.registerObserver(this, property, observer); + }, + + /** + We're using setUnknownProperty as a hook to setup attributeBinding observers for + properties that aren't defined on a view at initialization time. + + Note: setUnknownProperty will only be called once for each property. + + @method setUnknownProperty + @param key + @param value + @private + */ + setUnknownProperty: null, // Gets defined after initialization by _applyAttributeBindings + + _setUnknownProperty: function(key, value) { + var attributeName = this._unspecifiedAttributeBindings && this._unspecifiedAttributeBindings[key]; + if (attributeName) { + this._setupAttributeBindingObservation(key, attributeName); + } + + defineProperty(this, key); + return set(this, key, value); + }, + + /** + Given a property name, returns a dasherized version of that + property name if the property evaluates to a non-falsy value. + + For example, if the view has property `isUrgent` that evaluates to true, + passing `isUrgent` to this method will return `"is-urgent"`. + + @method _classStringForProperty + @param property + @private + */ + _classStringForProperty: function(property) { + var parsedPath = View._parsePropertyPath(property); + var path = parsedPath.path; + + var val = get(this, path); + if (val === undefined && isGlobalPath(path)) { + val = get(Ember.lookup, path); + } + + return View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName); + }, + + // .......................................................... + // ELEMENT SUPPORT + // + + /** + Returns the current DOM element for the view. + + @property element + @type DOMElement + */ + element: computed('_parentView', function(key, value) { + if (value !== undefined) { + return this.currentState.setElement(this, value); + } else { + return this.currentState.getElement(this); + } + }), + + /** + Returns a jQuery object for this view's element. If you pass in a selector + string, this method will return a jQuery object, using the current element + as its buffer. + + For example, calling `view.$('li')` will return a jQuery object containing + all of the `li` elements inside the DOM element of this view. + + @method $ + @param {String} [selector] a jQuery-compatible selector string + @return {jQuery} the jQuery object for the DOM node + */ + $: function(sel) { + return this.currentState.$(this, sel); + }, + + mutateChildViews: function(callback) { + var childViews = this._childViews, + idx = childViews.length, + view; + + while(--idx >= 0) { + view = childViews[idx]; + callback(this, view, idx); + } + + return this; + }, + + forEachChildView: function(callback) { + var childViews = this._childViews; + + if (!childViews) { return this; } + + var len = childViews.length, + view, idx; + + for (idx = 0; idx < len; idx++) { + view = childViews[idx]; + callback(view); + } + + return this; + }, + + /** + Appends the view's element to the specified parent element. + + If the view does not have an HTML representation yet, `createElement()` + will be called automatically. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the given element until all bindings have + finished synchronizing. + + This is not typically a function that you will need to call directly when + building your application. You might consider using `Ember.ContainerView` + instead. If you do need to use `appendTo`, be sure that the target element + you are providing is associated with an `Ember.Application` and does not + have an ancestor element that is associated with an Ember view. + + @method appendTo + @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object + @return {Ember.View} receiver + */ + appendTo: function(target) { + // Schedule the DOM element to be created and appended to the given + // element after bindings have synchronized. + this._insertElementLater(function() { + Ember.assert("You tried to append to (" + target + ") but that isn't in the DOM", jQuery(target).length > 0); + Ember.assert("You cannot append to an existing Ember.View. Consider using Ember.ContainerView instead.", !jQuery(target).is('.ember-view') && !jQuery(target).parents().is('.ember-view')); + this.$().appendTo(target); + }); + + return this; + }, + + /** + Replaces the content of the specified parent element with this view's + element. If the view does not have an HTML representation yet, + `createElement()` will be called automatically. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the given element until all bindings have + finished synchronizing + + @method replaceIn + @param {String|DOMElement|jQuery} target A selector, element, HTML string, or jQuery object + @return {Ember.View} received + */ + replaceIn: function(target) { + Ember.assert("You tried to replace in (" + target + ") but that isn't in the DOM", jQuery(target).length > 0); + Ember.assert("You cannot replace an existing Ember.View. Consider using Ember.ContainerView instead.", !jQuery(target).is('.ember-view') && !jQuery(target).parents().is('.ember-view')); + + this._insertElementLater(function() { + jQuery(target).empty(); + this.$().appendTo(target); + }); + + return this; + }, + + /** + Schedules a DOM operation to occur during the next render phase. This + ensures that all bindings have finished synchronizing before the view is + rendered. + + To use, pass a function that performs a DOM operation. + + Before your function is called, this view and all child views will receive + the `willInsertElement` event. After your function is invoked, this view + and all of its child views will receive the `didInsertElement` event. + + ```javascript + view._insertElementLater(function() { + this.createElement(); + this.$().appendTo('body'); + }); + ``` + + @method _insertElementLater + @param {Function} fn the function that inserts the element into the DOM + @private + */ + _insertElementLater: function(fn) { + this._scheduledInsert = run.scheduleOnce('render', this, '_insertElement', fn); + }, + + _insertElement: function (fn) { + this._scheduledInsert = null; + this.currentState.insertElement(this, fn); + }, + + /** + Appends the view's element to the document body. If the view does + not have an HTML representation yet, `createElement()` will be called + automatically. + + If your application uses the `rootElement` property, you must append + the view within that element. Rendering views outside of the `rootElement` + is not supported. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the document body until all bindings have + finished synchronizing. + + @method append + @return {Ember.View} receiver + */ + append: function() { + return this.appendTo(document.body); + }, + + /** + Removes the view's element from the element to which it is attached. + + @method remove + @return {Ember.View} receiver + */ + remove: function() { + // What we should really do here is wait until the end of the run loop + // to determine if the element has been re-appended to a different + // element. + // In the interim, we will just re-render if that happens. It is more + // important than elements get garbage collected. + if (!this.removedFromDOM) { this.destroyElement(); } + this.invokeRecursively(function(view) { + if (view.clearRenderedChildren) { view.clearRenderedChildren(); } + }); + }, + + elementId: null, + + /** + Attempts to discover the element in the parent element. The default + implementation looks for an element with an ID of `elementId` (or the + view's guid if `elementId` is null). You can override this method to + provide your own form of lookup. For example, if you want to discover your + element using a CSS class name instead of an ID. + + @method findElementInParentElement + @param {DOMElement} parentElement The parent's DOM element + @return {DOMElement} The discovered element + */ + findElementInParentElement: function(parentElem) { + var id = "#" + this.elementId; + return jQuery(id)[0] || jQuery(id, parentElem)[0]; + }, + + /** + Creates a DOM representation of the view and all of its + child views by recursively calling the `render()` method. + + After the element has been created, `didInsertElement` will + be called on this view and all of its child views. + + @method createElement + @return {Ember.View} receiver + */ + createElement: function() { + if (get(this, 'element')) { return this; } + + var buffer = this.renderToBuffer(); + set(this, 'element', buffer.element()); + + return this; + }, + + /** + Called when a view is going to insert an element into the DOM. + + @event willInsertElement + */ + willInsertElement: Ember.K, + + /** + Called when the element of the view has been inserted into the DOM + or after the view was re-rendered. Override this function to do any + set up that requires an element in the document body. + + @event didInsertElement + */ + didInsertElement: Ember.K, + + /** + Called when the view is about to rerender, but before anything has + been torn down. This is a good opportunity to tear down any manual + observers you have installed based on the DOM state + + @event willClearRender + */ + willClearRender: Ember.K, + + /** + Run this callback on the current view (unless includeSelf is false) and recursively on child views. + + @method invokeRecursively + @param fn {Function} + @param includeSelf {Boolean} Includes itself if true. + @private + */ + invokeRecursively: function(fn, includeSelf) { + var childViews = (includeSelf === false) ? this._childViews : [this]; + var currentViews, view, currentChildViews; + + while (childViews.length) { + currentViews = childViews.slice(); + childViews = []; + + for (var i=0, l=currentViews.length; i` tag for views. + + @property tagName + @type String + @default null + */ + + // We leave this null by default so we can tell the difference between + // the default case and a user-specified tag. + tagName: null, + + /** + The WAI-ARIA role of the control represented by this view. For example, a + button may have a role of type 'button', or a pane may have a role of + type 'alertdialog'. This property is used by assistive software to help + visually challenged users navigate rich web applications. + + The full list of valid WAI-ARIA roles is available at: + [http://www.w3.org/TR/wai-aria/roles#roles_categorization](http://www.w3.org/TR/wai-aria/roles#roles_categorization) + + @property ariaRole + @type String + @default null + */ + ariaRole: null, + + /** + Standard CSS class names to apply to the view's outer element. This + property automatically inherits any class names defined by the view's + superclasses as well. + + @property classNames + @type Array + @default ['ember-view'] + */ + classNames: ['ember-view'], + + /** + A list of properties of the view to apply as class names. If the property + is a string value, the value of that string will be applied as a class + name. + + ```javascript + // Applies the 'high' class to the view element + Ember.View.extend({ + classNameBindings: ['priority'] + priority: 'high' + }); + ``` + + If the value of the property is a Boolean, the name of that property is + added as a dasherized class name. + + ```javascript + // Applies the 'is-urgent' class to the view element + Ember.View.extend({ + classNameBindings: ['isUrgent'] + isUrgent: true + }); + ``` + + If you would prefer to use a custom value instead of the dasherized + property name, you can pass a binding like this: + + ```javascript + // Applies the 'urgent' class to the view element + Ember.View.extend({ + classNameBindings: ['isUrgent:urgent'] + isUrgent: true + }); + ``` + + This list of properties is inherited from the view's superclasses as well. + + @property classNameBindings + @type Array + @default [] + */ + classNameBindings: EMPTY_ARRAY, + + /** + A list of properties of the view to apply as attributes. If the property is + a string value, the value of that string will be applied as the attribute. + + ```javascript + // Applies the type attribute to the element + // with the value "button", like
    + Ember.View.extend({ + attributeBindings: ['type'], + type: 'button' + }); + ``` + + If the value of the property is a Boolean, the name of that property is + added as an attribute. + + ```javascript + // Renders something like
    + Ember.View.extend({ + attributeBindings: ['enabled'], + enabled: true + }); + ``` + + @property attributeBindings + */ + attributeBindings: EMPTY_ARRAY, + + // ....................................................... + // CORE DISPLAY METHODS + // + + /** + Setup a view, but do not finish waking it up. + + * configure `childViews` + * register the view with the global views hash, which is used for event + dispatch + + @method init + @private + */ + init: function() { + this.elementId = this.elementId || guidFor(this); + + this._super(); + + // setup child views. be sure to clone the child views array first + this._childViews = this._childViews.slice(); + + Ember.assert("Only arrays are allowed for 'classNameBindings'", typeOf(this.classNameBindings) === 'array'); + this.classNameBindings = A(this.classNameBindings.slice()); + + Ember.assert("Only arrays are allowed for 'classNames'", typeOf(this.classNames) === 'array'); + this.classNames = A(this.classNames.slice()); + }, + + appendChild: function(view, options) { + return this.currentState.appendChild(this, view, options); + }, + + /** + Removes the child view from the parent view. + + @method removeChild + @param {Ember.View} view + @return {Ember.View} receiver + */ + removeChild: function(view) { + // If we're destroying, the entire subtree will be + // freed, and the DOM will be handled separately, + // so no need to mess with childViews. + if (this.isDestroying) { return; } + + // update parent node + set(view, '_parentView', null); + + // remove view from childViews array. + var childViews = this._childViews; + + a_removeObject(childViews, view); + + this.propertyDidChange('childViews'); // HUH?! what happened to will change? + + return this; + }, + + /** + Removes all children from the `parentView`. + + @method removeAllChildren + @return {Ember.View} receiver + */ + removeAllChildren: function() { + return this.mutateChildViews(function(parentView, view) { + parentView.removeChild(view); + }); + }, + + destroyAllChildren: function() { + return this.mutateChildViews(function(parentView, view) { + view.destroy(); + }); + }, + + /** + Removes the view from its `parentView`, if one is found. Otherwise + does nothing. + + @method removeFromParent + @return {Ember.View} receiver + */ + removeFromParent: function() { + var parent = this._parentView; + + // Remove DOM element from parent + this.remove(); + + if (parent) { parent.removeChild(this); } + return this; + }, + + /** + You must call `destroy` on a view to destroy the view (and all of its + child views). This will remove the view from any parent node, then make + sure that the DOM element managed by the view can be released by the + memory manager. + + @method destroy + */ + destroy: function() { + var childViews = this._childViews, + // get parentView before calling super because it'll be destroyed + nonVirtualParentView = get(this, 'parentView'), + viewName = this.viewName, + childLen, i; + + if (!this._super()) { return; } + + childLen = childViews.length; + for (i=childLen-1; i>=0; i--) { + childViews[i].removedFromDOM = true; + } + + // remove from non-virtual parent view if viewName was specified + if (viewName && nonVirtualParentView) { + nonVirtualParentView.set(viewName, null); + } + + childLen = childViews.length; + for (i=childLen-1; i>=0; i--) { + childViews[i].destroy(); + } + + return this; + }, + + /** + Instantiates a view to be added to the childViews array during view + initialization. You generally will not call this method directly unless + you are overriding `createChildViews()`. Note that this method will + automatically configure the correct settings on the new view instance to + act as a child of the parent. + + @method createChildView + @param {Class|String} viewClass + @param {Hash} [attrs] Attributes to add + @return {Ember.View} new instance + */ + createChildView: function(view, attrs) { + if (!view) { + throw new TypeError("createChildViews first argument must exist"); + } + + if (view.isView && view._parentView === this && view.container === this.container) { + return view; + } + + attrs = attrs || {}; + attrs._parentView = this; + + if (CoreView.detect(view)) { + attrs.templateData = attrs.templateData || get(this, 'templateData'); + + attrs.container = this.container; + view = view.create(attrs); + + // don't set the property on a virtual view, as they are invisible to + // consumers of the view API + if (view.viewName) { + set(get(this, 'concreteView'), view.viewName, view); + } + } else if ('string' === typeof view) { + var fullName = 'view:' + view; + var ViewKlass = this.container.lookupFactory(fullName); + + Ember.assert("Could not find view: '" + fullName + "'", !!ViewKlass); + + attrs.templateData = get(this, 'templateData'); + view = ViewKlass.create(attrs); + } else { + Ember.assert('You must pass instance or subclass of View', view.isView); + attrs.container = this.container; + + if (!get(view, 'templateData')) { + attrs.templateData = get(this, 'templateData'); + } + + setProperties(view, attrs); + + } + + return view; + }, + + becameVisible: Ember.K, + becameHidden: Ember.K, + + /** + When the view's `isVisible` property changes, toggle the visibility + element of the actual DOM element. + + @method _isVisibleDidChange + @private + */ + _isVisibleDidChange: observer('isVisible', function() { + if (this._isVisible === get(this, 'isVisible')) { return ; } + run.scheduleOnce('render', this, this._toggleVisibility); + }), + + _toggleVisibility: function() { + var $el = this.$(); + if (!$el) { return; } + + var isVisible = get(this, 'isVisible'); + + if (this._isVisible === isVisible) { return ; } + + $el.toggle(isVisible); + + this._isVisible = isVisible; + + if (this._isAncestorHidden()) { return; } + + if (isVisible) { + this._notifyBecameVisible(); + } else { + this._notifyBecameHidden(); + } + }, + + _notifyBecameVisible: function() { + this.trigger('becameVisible'); + + this.forEachChildView(function(view) { + var isVisible = get(view, 'isVisible'); + + if (isVisible || isVisible === null) { + view._notifyBecameVisible(); + } + }); + }, + + _notifyBecameHidden: function() { + this.trigger('becameHidden'); + this.forEachChildView(function(view) { + var isVisible = get(view, 'isVisible'); + + if (isVisible || isVisible === null) { + view._notifyBecameHidden(); + } + }); + }, + + _isAncestorHidden: function() { + var parent = get(this, 'parentView'); + + while (parent) { + if (get(parent, 'isVisible') === false) { return true; } + + parent = get(parent, 'parentView'); + } + + return false; + }, + + clearBuffer: function() { + this.invokeRecursively(nullViewsBuffer); + }, + + transitionTo: function(state, children) { + var priorState = this.currentState, + currentState = this.currentState = this.states[state]; + this.state = state; + + if (priorState && priorState.exit) { priorState.exit(this); } + if (currentState.enter) { currentState.enter(this); } + if (state === 'inDOM') { meta(this).cache.element = undefined; } + + if (children !== false) { + this.forEachChildView(function(view) { + view.transitionTo(state); + }); + } + }, + + // ....................................................... + // EVENT HANDLING + // + + /** + Handle events from `Ember.EventDispatcher` + + @method handleEvent + @param eventName {String} + @param evt {Event} + @private + */ + handleEvent: function(eventName, evt) { + return this.currentState.handleEvent(this, eventName, evt); + }, + + registerObserver: function(root, path, target, observer) { + if (!observer && 'function' === typeof target) { + observer = target; + target = null; + } + + if (!root || typeof root !== 'object') { + return; + } + + var view = this, + stateCheckedObserver = function() { + view.currentState.invokeObserver(this, observer); + }, + scheduledObserver = function() { + run.scheduleOnce('render', this, stateCheckedObserver); + }; + + addObserver(root, path, target, scheduledObserver); + + this.one('willClearRender', function() { + removeObserver(root, path, target, scheduledObserver); + }); + } + + }); + + /* + Describe how the specified actions should behave in the various + states that a view can exist in. Possible states: + + * preRender: when a view is first instantiated, and after its + element was destroyed, it is in the preRender state + * inBuffer: once a view has been rendered, but before it has + been inserted into the DOM, it is in the inBuffer state + * hasElement: the DOM representation of the view is created, + and is ready to be inserted + * inDOM: once a view has been inserted into the DOM it is in + the inDOM state. A view spends the vast majority of its + existence in this state. + * destroyed: once a view has been destroyed (using the destroy + method), it is in this state. No further actions can be invoked + on a destroyed view. + */ + + // in the destroyed state, everything is illegal + + // before rendering has begun, all legal manipulations are noops. + + // inside the buffer, legal manipulations are done on the buffer + + // once the view has been inserted into the DOM, legal manipulations + // are done on the DOM element. + + function notifyMutationListeners() { + run.once(View, 'notifyMutationListeners'); + } + + var DOMManager = { + prepend: function(view, html) { + view.$().prepend(html); + notifyMutationListeners(); + }, + + after: function(view, html) { + view.$().after(html); + notifyMutationListeners(); + }, + + html: function(view, html) { + view.$().html(html); + notifyMutationListeners(); + }, + + replace: function(view) { + var element = get(view, 'element'); + + set(view, 'element', null); + + view._insertElementLater(function() { + jQuery(element).replaceWith(get(view, 'element')); + notifyMutationListeners(); + }); + }, + + remove: function(view) { + view.$().remove(); + notifyMutationListeners(); + }, + + empty: function(view) { + view.$().empty(); + notifyMutationListeners(); + } + }; + + View.reopen({ + domManager: DOMManager + }); + + View.reopenClass({ + + /** + Parse a path and return an object which holds the parsed properties. + + For example a path like "content.isEnabled:enabled:disabled" will return the + following object: + + ```javascript + { + path: "content.isEnabled", + className: "enabled", + falsyClassName: "disabled", + classNames: ":enabled:disabled" + } + ``` + + @method _parsePropertyPath + @static + @private + */ + _parsePropertyPath: function(path) { + var split = path.split(':'), + propertyPath = split[0], + classNames = "", + className, + falsyClassName; + + // check if the property is defined as prop:class or prop:trueClass:falseClass + if (split.length > 1) { + className = split[1]; + if (split.length === 3) { falsyClassName = split[2]; } + + classNames = ':' + className; + if (falsyClassName) { classNames += ":" + falsyClassName; } + } + + return { + path: propertyPath, + classNames: classNames, + className: (className === '') ? undefined : className, + falsyClassName: falsyClassName + }; + }, + + /** + Get the class name for a given value, based on the path, optional + `className` and optional `falsyClassName`. + + - if a `className` or `falsyClassName` has been specified: + - if the value is truthy and `className` has been specified, + `className` is returned + - if the value is falsy and `falsyClassName` has been specified, + `falsyClassName` is returned + - otherwise `null` is returned + - if the value is `true`, the dasherized last part of the supplied path + is returned + - if the value is not `false`, `undefined` or `null`, the `value` + is returned + - if none of the above rules apply, `null` is returned + + @method _classStringForValue + @param path + @param val + @param className + @param falsyClassName + @static + @private + */ + _classStringForValue: function(path, val, className, falsyClassName) { + // When using the colon syntax, evaluate the truthiness or falsiness + // of the value to determine which className to return + if (className || falsyClassName) { + if (className && !!val) { + return className; + + } else if (falsyClassName && !val) { + return falsyClassName; + + } else { + return null; + } + + // If value is a Boolean and true, return the dasherized property + // name. + } else if (val === true) { + // Normalize property path to be suitable for use + // as a class name. For exaple, content.foo.barBaz + // becomes bar-baz. + var parts = path.split('.'); + return dasherize(parts[parts.length-1]); + + // If the value is not false, undefined, or null, return the current + // value of the property. + } else if (val !== false && val != null) { + return val; + + // Nothing to display. Return null so that the old class is removed + // but no new class is added. + } else { + return null; + } + } + }); + + var mutation = EmberObject.extend(Evented).create(); + + View.addMutationListener = function(callback) { + mutation.on('change', callback); + }; + + View.removeMutationListener = function(callback) { + mutation.off('change', callback); + }; + + View.notifyMutationListeners = function() { + mutation.trigger('change'); + }; + + /** + Global views hash + + @property views + @static + @type Hash + */ + View.views = {}; + + // If someone overrides the child views computed property when + // defining their class, we want to be able to process the user's + // supplied childViews and then restore the original computed property + // at view initialization time. This happens in Ember.ContainerView's init + // method. + View.childViewsProperty = childViewsProperty; + + View.applyAttributeBindings = function(elem, name, value) { + var type = typeOf(value); + + // if this changes, also change the logic in ember-handlebars/lib/helpers/binding.js + if (name !== 'value' && (type === 'string' || (type === 'number' && !isNaN(value)))) { + if (value !== elem.attr(name)) { + elem.attr(name, value); + } + } else if (name === 'value' || type === 'boolean') { + if (isNone(value) || value === false) { + // `null`, `undefined` or `false` should remove attribute + elem.removeAttr(name); + elem.prop(name, ''); + } else if (value !== elem.prop(name)) { + // value should always be properties + elem.prop(name, value); + } + } else if (!value) { + elem.removeAttr(name); + } + }; + + __exports__.CoreView = CoreView; + __exports__.View = View; + __exports__.ViewCollection = ViewCollection; + }); +})(); + +(function() { +define("metamorph", + [], + function() { + "use strict"; + // ========================================================================== + // Project: metamorph + // Copyright: ©2014 Tilde, Inc. All rights reserved. + // ========================================================================== + + var K = function() {}, + guid = 0, + disableRange = (function(){ + if ('undefined' !== typeof MetamorphENV) { + return MetamorphENV.DISABLE_RANGE_API; + } else if ('undefined' !== ENV) { + return ENV.DISABLE_RANGE_API; + } else { + return false; + } + })(), + + // Feature-detect the W3C range API, the extended check is for IE9 which only partially supports ranges + supportsRange = (!disableRange) && typeof document !== 'undefined' && ('createRange' in document) && (typeof Range !== 'undefined') && Range.prototype.createContextualFragment, + + // Internet Explorer prior to 9 does not allow setting innerHTML if the first element + // is a "zero-scope" element. This problem can be worked around by making + // the first node an invisible text node. We, like Modernizr, use ­ + needsShy = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "
    "; + testEl.firstChild.innerHTML = ""; + return testEl.firstChild.innerHTML === ''; + })(), + + + // IE 8 (and likely earlier) likes to move whitespace preceeding + // a script tag to appear after it. This means that we can + // accidentally remove whitespace when updating a morph. + movesWhitespace = document && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "Test: Value"; + return testEl.childNodes[0].nodeValue === 'Test:' && + testEl.childNodes[2].nodeValue === ' Value'; + })(); + + // Constructor that supports either Metamorph('foo') or new + // Metamorph('foo'); + // + // Takes a string of HTML as the argument. + + var Metamorph = function(html) { + var self; + + if (this instanceof Metamorph) { + self = this; + } else { + self = new K(); + } + + self.innerHTML = html; + var myGuid = 'metamorph-'+(guid++); + self.start = myGuid + '-start'; + self.end = myGuid + '-end'; + + return self; + }; + + K.prototype = Metamorph.prototype; + + var rangeFor, htmlFunc, removeFunc, outerHTMLFunc, appendToFunc, afterFunc, prependFunc, startTagFunc, endTagFunc; + + outerHTMLFunc = function() { + return this.startTag() + this.innerHTML + this.endTag(); + }; + + startTagFunc = function() { + /* + * We replace chevron by its hex code in order to prevent escaping problems. + * Check this thread for more explaination: + * http://stackoverflow.com/questions/8231048/why-use-x3c-instead-of-when-generating-html-from-javascript + */ + return "hi"; + * div.firstChild.firstChild.tagName //=> "" + * + * If our script markers are inside such a node, we need to find that + * node and use *it* as the marker. + */ + var realNode = function(start) { + while (start.parentNode.tagName === "") { + start = start.parentNode; + } + + return start; + }; + + /* + * When automatically adding a tbody, Internet Explorer inserts the + * tbody immediately before the first . Other browsers create it + * before the first node, no matter what. + * + * This means the the following code: + * + * div = document.createElement("div"); + * div.innerHTML = "
    hi
    + * + * Generates the following DOM in IE: + * + * + div + * + table + * - script id='first' + * + tbody + * + tr + * + td + * - "hi" + * - script id='last' + * + * Which means that the two script tags, even though they were + * inserted at the same point in the hierarchy in the original + * HTML, now have different parents. + * + * This code reparents the first script tag by making it the tbody's + * first child. + * + */ + var fixParentage = function(start, end) { + if (start.parentNode !== end.parentNode) { + end.parentNode.insertBefore(start, end.parentNode.firstChild); + } + }; + + htmlFunc = function(html, outerToo) { + // get the real starting node. see realNode for details. + var start = realNode(document.getElementById(this.start)); + var end = document.getElementById(this.end); + var parentNode = end.parentNode; + var node, nextSibling, last; + + // make sure that the start and end nodes share the same + // parent. If not, fix it. + fixParentage(start, end); + + // remove all of the nodes after the starting placeholder and + // before the ending placeholder. + node = start.nextSibling; + while (node) { + nextSibling = node.nextSibling; + last = node === end; + + // if this is the last node, and we want to remove it as well, + // set the `end` node to the next sibling. This is because + // for the rest of the function, we insert the new nodes + // before the end (note that insertBefore(node, null) is + // the same as appendChild(node)). + // + // if we do not want to remove it, just break. + if (last) { + if (outerToo) { end = node.nextSibling; } else { break; } + } + + node.parentNode.removeChild(node); + + // if this is the last node and we didn't break before + // (because we wanted to remove the outer nodes), break + // now. + if (last) { break; } + + node = nextSibling; + } + + // get the first node for the HTML string, even in cases like + // tables and lists where a simple innerHTML on a div would + // swallow some of the content. + node = firstNodeFor(start.parentNode, html); + + if (outerToo) { + start.parentNode.removeChild(start); + } + + // copy the nodes for the HTML between the starting and ending + // placeholder. + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, end); + node = nextSibling; + } + }; + + // remove the nodes in the DOM representing this metamorph. + // + // this includes the starting and ending placeholders. + removeFunc = function() { + var start = realNode(document.getElementById(this.start)); + var end = document.getElementById(this.end); + + this.html(''); + start.parentNode.removeChild(start); + end.parentNode.removeChild(end); + }; + + appendToFunc = function(parentNode) { + var node = firstNodeFor(parentNode, this.outerHTML()); + var nextSibling; + + while (node) { + nextSibling = node.nextSibling; + parentNode.appendChild(node); + node = nextSibling; + } + }; + + afterFunc = function(html) { + // get the real starting node. see realNode for details. + var end = document.getElementById(this.end); + var insertBefore = end.nextSibling; + var parentNode = end.parentNode; + var nextSibling; + var node; + + // get the first node for the HTML string, even in cases like + // tables and lists where a simple innerHTML on a div would + // swallow some of the content. + node = firstNodeFor(parentNode, html); + + // copy the nodes for the HTML between the starting and ending + // placeholder. + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, insertBefore); + node = nextSibling; + } + }; + + prependFunc = function(html) { + var start = document.getElementById(this.start); + var parentNode = start.parentNode; + var nextSibling; + var node; + + node = firstNodeFor(parentNode, html); + var insertBefore = start.nextSibling; + + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, insertBefore); + node = nextSibling; + } + }; + } + + Metamorph.prototype.html = function(html) { + this.checkRemoved(); + if (html === undefined) { return this.innerHTML; } + + htmlFunc.call(this, html); + + this.innerHTML = html; + }; + + Metamorph.prototype.replaceWith = function(html) { + this.checkRemoved(); + htmlFunc.call(this, html, true); + }; + + Metamorph.prototype.remove = removeFunc; + Metamorph.prototype.outerHTML = outerHTMLFunc; + Metamorph.prototype.appendTo = appendToFunc; + Metamorph.prototype.after = afterFunc; + Metamorph.prototype.prepend = prependFunc; + Metamorph.prototype.startTag = startTagFunc; + Metamorph.prototype.endTag = endTagFunc; + + Metamorph.prototype.isRemoved = function() { + var before = document.getElementById(this.start); + var after = document.getElementById(this.end); + + return !before || !after; + }; + + Metamorph.prototype.checkRemoved = function() { + if (this.isRemoved()) { + throw new Error("Cannot perform operations on a Metamorph that is not in the DOM."); + } + }; + + return Metamorph; + }); + +})(); + +(function() { +define("ember-handlebars-compiler", + ["ember-metal/core","exports"], + function(__dependency1__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars-compiler + */ + + var Ember = __dependency1__["default"]; + + // ES6Todo: you'll need to import debugger once debugger is es6'd. + if (typeof Ember.assert === 'undefined') { Ember.assert = function(){}; }; + if (typeof Ember.FEATURES === 'undefined') { Ember.FEATURES = { isEnabled: function(){} }; }; + + var objectCreate = Object.create || function(parent) { + function F() {} + F.prototype = parent; + return new F(); + }; + + // set up for circular references later + var View, Component; + + // ES6Todo: when ember-debug is es6'ed import this. + // var emberAssert = Ember.assert; + var Handlebars = (Ember.imports && Ember.imports.Handlebars) || (this && this.Handlebars); + if (!Handlebars && typeof require === 'function') { + Handlebars = require('handlebars'); + } + + Ember.assert("Ember Handlebars requires Handlebars version 1.0 or 1.1. Include " + + "a SCRIPT tag in the HTML HEAD linking to the Handlebars file " + + "before you link to Ember.", Handlebars); + + Ember.assert("Ember Handlebars requires Handlebars version 1.0 or 1.1, " + + "COMPILER_REVISION expected: 4, got: " + Handlebars.COMPILER_REVISION + + " - Please note: Builds of master may have other COMPILER_REVISION values.", + Handlebars.COMPILER_REVISION === 4); + + /** + Prepares the Handlebars templating library for use inside Ember's view + system. + + The `Ember.Handlebars` object is the standard Handlebars library, extended to + use Ember's `get()` method instead of direct property access, which allows + computed properties to be used inside templates. + + To create an `Ember.Handlebars` template, call `Ember.Handlebars.compile()`. + This will return a function that can be used by `Ember.View` for rendering. + + @class Handlebars + @namespace Ember + */ + var EmberHandlebars = Ember.Handlebars = objectCreate(Handlebars); + + /** + Register a bound helper or custom view helper. + + ## Simple bound helper example + + ```javascript + Ember.Handlebars.helper('capitalize', function(value) { + return value.toUpperCase(); + }); + ``` + + The above bound helper can be used inside of templates as follows: + + ```handlebars + {{capitalize name}} + ``` + + In this case, when the `name` property of the template's context changes, + the rendered value of the helper will update to reflect this change. + + For more examples of bound helpers, see documentation for + `Ember.Handlebars.registerBoundHelper`. + + ## Custom view helper example + + Assuming a view subclass named `App.CalendarView` were defined, a helper + for rendering instances of this view could be registered as follows: + + ```javascript + Ember.Handlebars.helper('calendar', App.CalendarView): + ``` + + The above bound helper can be used inside of templates as follows: + + ```handlebars + {{calendar}} + ``` + + Which is functionally equivalent to: + + ```handlebars + {{view App.CalendarView}} + ``` + + Options in the helper will be passed to the view in exactly the same + manner as with the `view` helper. + + @method helper + @for Ember.Handlebars + @param {String} name + @param {Function|Ember.View} function or view class constructor + @param {String} dependentKeys* + */ + EmberHandlebars.helper = function(name, value) { + if (!View) { View = requireModule('ember-views/views/view')['View']; } // ES6TODO: stupid circular dep + if (!Component) { Component = requireModule('ember-views/views/component')['default']; } // ES6TODO: stupid circular dep + + Ember.assert("You tried to register a component named '" + name + "', but component names must include a '-'", !Component.detect(value) || name.match(/-/)); + + if (View.detect(value)) { + EmberHandlebars.registerHelper(name, EmberHandlebars.makeViewHelper(value)); + } else { + EmberHandlebars.registerBoundHelper.apply(null, arguments); + } + }; + + /** + Returns a helper function that renders the provided ViewClass. + + Used internally by Ember.Handlebars.helper and other methods + involving helper/component registration. + + @private + @method makeViewHelper + @for Ember.Handlebars + @param {Function} ViewClass view class constructor + */ + EmberHandlebars.makeViewHelper = function(ViewClass) { + return function(options) { + Ember.assert("You can only pass attributes (such as name=value) not bare values to a helper for a View found in '" + ViewClass.toString() + "'", arguments.length < 2); + return EmberHandlebars.helpers.view.call(this, ViewClass, options); + }; + }; + + /** + @class helpers + @namespace Ember.Handlebars + */ + EmberHandlebars.helpers = objectCreate(Handlebars.helpers); + + /** + Override the the opcode compiler and JavaScript compiler for Handlebars. + + @class Compiler + @namespace Ember.Handlebars + @private + @constructor + */ + EmberHandlebars.Compiler = function() {}; + + // Handlebars.Compiler doesn't exist in runtime-only + if (Handlebars.Compiler) { + EmberHandlebars.Compiler.prototype = objectCreate(Handlebars.Compiler.prototype); + } + + EmberHandlebars.Compiler.prototype.compiler = EmberHandlebars.Compiler; + + /** + @class JavaScriptCompiler + @namespace Ember.Handlebars + @private + @constructor + */ + EmberHandlebars.JavaScriptCompiler = function() {}; + + // Handlebars.JavaScriptCompiler doesn't exist in runtime-only + if (Handlebars.JavaScriptCompiler) { + EmberHandlebars.JavaScriptCompiler.prototype = objectCreate(Handlebars.JavaScriptCompiler.prototype); + EmberHandlebars.JavaScriptCompiler.prototype.compiler = EmberHandlebars.JavaScriptCompiler; + } + + + EmberHandlebars.JavaScriptCompiler.prototype.namespace = "Ember.Handlebars"; + + EmberHandlebars.JavaScriptCompiler.prototype.initializeBuffer = function() { + return "''"; + }; + + /** + Override the default buffer for Ember Handlebars. By default, Handlebars + creates an empty String at the beginning of each invocation and appends to + it. Ember's Handlebars overrides this to append to a single shared buffer. + + @private + @method appendToBuffer + @param string {String} + */ + EmberHandlebars.JavaScriptCompiler.prototype.appendToBuffer = function(string) { + return "data.buffer.push("+string+");"; + }; + + // Hacks ahead: + // Handlebars presently has a bug where the `blockHelperMissing` hook + // doesn't get passed the name of the missing helper name, but rather + // gets passed the value of that missing helper evaluated on the current + // context, which is most likely `undefined` and totally useless. + // + // So we alter the compiled template function to pass the name of the helper + // instead, as expected. + // + // This can go away once the following is closed: + // https://github.com/wycats/handlebars.js/issues/634 + + var DOT_LOOKUP_REGEX = /helpers\.(.*?)\)/, + BRACKET_STRING_LOOKUP_REGEX = /helpers\['(.*?)'/, + INVOCATION_SPLITTING_REGEX = /(.*blockHelperMissing\.call\(.*)(stack[0-9]+)(,.*)/; + + EmberHandlebars.JavaScriptCompiler.stringifyLastBlockHelperMissingInvocation = function(source) { + var helperInvocation = source[source.length - 1], + helperName = (DOT_LOOKUP_REGEX.exec(helperInvocation) || BRACKET_STRING_LOOKUP_REGEX.exec(helperInvocation))[1], + matches = INVOCATION_SPLITTING_REGEX.exec(helperInvocation); + + source[source.length - 1] = matches[1] + "'" + helperName + "'" + matches[3]; + }; + + var stringifyBlockHelperMissing = EmberHandlebars.JavaScriptCompiler.stringifyLastBlockHelperMissingInvocation; + + var originalBlockValue = EmberHandlebars.JavaScriptCompiler.prototype.blockValue; + EmberHandlebars.JavaScriptCompiler.prototype.blockValue = function() { + originalBlockValue.apply(this, arguments); + stringifyBlockHelperMissing(this.source); + }; + + var originalAmbiguousBlockValue = EmberHandlebars.JavaScriptCompiler.prototype.ambiguousBlockValue; + EmberHandlebars.JavaScriptCompiler.prototype.ambiguousBlockValue = function() { + originalAmbiguousBlockValue.apply(this, arguments); + stringifyBlockHelperMissing(this.source); + }; + + /** + Rewrite simple mustaches from `{{foo}}` to `{{bind "foo"}}`. This means that + all simple mustaches in Ember's Handlebars will also set up an observer to + keep the DOM up to date when the underlying property changes. + + @private + @method mustache + @for Ember.Handlebars.Compiler + @param mustache + */ + EmberHandlebars.Compiler.prototype.mustache = function(mustache) { + if (!(mustache.params.length || mustache.hash)) { + var id = new Handlebars.AST.IdNode([{ part: '_triageMustache' }]); + + // Update the mustache node to include a hash value indicating whether the original node + // was escaped. This will allow us to properly escape values when the underlying value + // changes and we need to re-render the value. + if (!mustache.escaped) { + mustache.hash = mustache.hash || new Handlebars.AST.HashNode([]); + mustache.hash.pairs.push(["unescaped", new Handlebars.AST.StringNode("true")]); + } + mustache = new Handlebars.AST.MustacheNode([id].concat([mustache.id]), mustache.hash, !mustache.escaped); + } + + return Handlebars.Compiler.prototype.mustache.call(this, mustache); + }; + + /** + Used for precompilation of Ember Handlebars templates. This will not be used + during normal app execution. + + @method precompile + @for Ember.Handlebars + @static + @param {String} string The template to precompile + @param {Boolean} asObject optional parameter, defaulting to true, of whether or not the + compiled template should be returned as an Object or a String + */ + EmberHandlebars.precompile = function(string, asObject) { + var ast = Handlebars.parse(string); + + var options = { + knownHelpers: { + action: true, + unbound: true, + 'bind-attr': true, + template: true, + view: true, + _triageMustache: true + }, + data: true, + stringParams: true + }; + + asObject = asObject === undefined ? true : asObject; + + var environment = new EmberHandlebars.Compiler().compile(ast, options); + return new EmberHandlebars.JavaScriptCompiler().compile(environment, options, undefined, asObject); + }; + + // We don't support this for Handlebars runtime-only + if (Handlebars.compile) { + /** + The entry point for Ember Handlebars. This replaces the default + `Handlebars.compile` and turns on template-local data and String + parameters. + + @method compile + @for Ember.Handlebars + @static + @param {String} string The template to compile + @return {Function} + */ + EmberHandlebars.compile = function(string) { + var ast = Handlebars.parse(string); + var options = { data: true, stringParams: true }; + var environment = new EmberHandlebars.Compiler().compile(ast, options); + var templateSpec = new EmberHandlebars.JavaScriptCompiler().compile(environment, options, undefined, true); + + var template = EmberHandlebars.template(templateSpec); + template.isMethod = false; //Make sure we don't wrap templates with ._super + + return template; + }; + } + + __exports__["default"] = EmberHandlebars; + }); +})(); + +(function() { +define("ember-handlebars/component_lookup", + ["ember-runtime/system/object","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var EmberObject = __dependency1__["default"]; + + var ComponentLookup = EmberObject.extend({ + lookupFactory: function(name, container) { + + container = container || this.container; + + var fullName = 'component:' + name, + templateFullName = 'template:components/' + name, + templateRegistered = container && container.has(templateFullName); + + if (templateRegistered) { + container.injection(fullName, 'layout', templateFullName); + } + + var Component = container.lookupFactory(fullName); + + // Only treat as a component if either the component + // or a template has been registered. + if (templateRegistered || Component) { + if (!Component) { + container.register(fullName, Ember.Component); + Component = container.lookupFactory(fullName); + } + return Component; + } + } + }); + + __exports__["default"] = ComponentLookup; + }); +define("ember-handlebars/controls", + ["ember-handlebars/controls/checkbox","ember-handlebars/controls/text_field","ember-handlebars/controls/text_area","ember-metal/core","ember-handlebars-compiler","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + var Checkbox = __dependency1__["default"]; + var TextField = __dependency2__["default"]; + var TextArea = __dependency3__["default"]; + + var Ember = __dependency4__["default"]; + // Ember.assert + // var emberAssert = Ember.assert; + + var EmberHandlebars = __dependency5__["default"]; + var helpers = EmberHandlebars.helpers; + /** + @module ember + @submodule ember-handlebars-compiler + */ + + /** + + The `{{input}}` helper inserts an HTML `` tag into the template, + with a `type` value of either `text` or `checkbox`. If no `type` is provided, + `text` will be the default value applied. The attributes of `{{input}}` + match those of the native HTML tag as closely as possible for these two types. + + ## Use as text field + An `{{input}}` with no `type` or a `type` of `text` will render an HTML text input. + The following HTML attributes can be set via the helper: + + + + + + + + + + + + +
    `readonly``required``autofocus`
    `value``placeholder``disabled`
    `size``tabindex``maxlength`
    `name``min``max`
    `pattern``accept``autocomplete`
    `autosave``formaction``formenctype`
    `formmethod``formnovalidate``formtarget`
    `height``inputmode``multiple`
    `step``width``form`
    `selectionDirection``spellcheck` 
    + + + When set to a quoted string, these values will be directly applied to the HTML + element. When left unquoted, these values will be bound to a property on the + template's current rendering context (most typically a controller instance). + + ## Unbound: + + ```handlebars + {{input value="http://www.facebook.com"}} + ``` + + + ```html + + ``` + + ## Bound: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + firstName: "Stanley", + entryNotAllowed: true + }); + ``` + + + ```handlebars + {{input type="text" value=firstName disabled=entryNotAllowed size="50"}} + ``` + + + ```html + + ``` + + ## Extension + + Internally, `{{input type="text"}}` creates an instance of `Ember.TextField`, passing + arguments from the helper to `Ember.TextField`'s `create` method. You can extend the + capablilties of text inputs in your applications by reopening this class. For example, + if you are deploying to browsers where the `required` attribute is used, you + can add this to the `TextField`'s `attributeBindings` property: + + + ```javascript + Ember.TextField.reopen({ + attributeBindings: ['required'] + }); + ``` + + Keep in mind when writing `Ember.TextField` subclasses that `Ember.TextField` + itself extends `Ember.Component`, meaning that it does NOT inherit + the `controller` of the parent view. + + See more about [Ember components](api/classes/Ember.Component.html) + + + ## Use as checkbox + + An `{{input}}` with a `type` of `checkbox` will render an HTML checkbox input. + The following HTML attributes can be set via the helper: + + * `checked` + * `disabled` + * `tabindex` + * `indeterminate` + * `name` + * `autofocus` + * `form` + + + When set to a quoted string, these values will be directly applied to the HTML + element. When left unquoted, these values will be bound to a property on the + template's current rendering context (most typically a controller instance). + + ## Unbound: + + ```handlebars + {{input type="checkbox" name="isAdmin"}} + ``` + + ```html + + ``` + + ## Bound: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + isAdmin: true + }); + ``` + + + ```handlebars + {{input type="checkbox" checked=isAdmin }} + ``` + + + ```html + + ``` + + ## Extension + + Internally, `{{input type="checkbox"}}` creates an instance of `Ember.Checkbox`, passing + arguments from the helper to `Ember.Checkbox`'s `create` method. You can extend the + capablilties of checkbox inputs in your applications by reopening this class. For example, + if you wanted to add a css class to all checkboxes in your application: + + + ```javascript + Ember.Checkbox.reopen({ + classNames: ['my-app-checkbox'] + }); + ``` + + + @method input + @for Ember.Handlebars.helpers + @param {Hash} options + */ + function inputHelper(options) { + Ember.assert('You can only pass attributes to the `input` helper, not arguments', arguments.length < 2); + + var hash = options.hash, + types = options.hashTypes, + inputType = hash.type, + onEvent = hash.on; + + delete hash.type; + delete hash.on; + + if (inputType === 'checkbox') { + Ember.assert("{{input type='checkbox'}} does not support setting `value=someBooleanValue`; you must use `checked=someBooleanValue` instead.", options.hashTypes.value !== 'ID'); + return helpers.view.call(this, Checkbox, options); + } else { + if (inputType) { hash.type = inputType; } + hash.onEvent = onEvent || 'enter'; + return helpers.view.call(this, TextField, options); + } + } + + /** + `{{textarea}}` inserts a new instance of ` + ``` + + Bound: + + In the following example, the `writtenWords` property on `App.ApplicationController` + will be updated live as the user types 'Lots of text that IS bound' into + the text area of their browser's window. + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound" + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + ``` + + Would result in the following HTML: + + ```html + + ``` + + If you wanted a one way binding between the text area and a div tag + somewhere else on your screen, you could use `Ember.computed.oneWay`: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound", + outputWrittenWords: Ember.computed.oneWay("writtenWords") + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + +
    + {{outputWrittenWords}} +
    + ``` + + Would result in the following HTML: + + ```html + + + <-- the following div will be updated in real time as you type --> + +
    + Lots of text that IS bound +
    + ``` + + Finally, this example really shows the power and ease of Ember when two + properties are bound to eachother via `Ember.computed.alias`. Type into + either text area box and they'll both stay in sync. Note that + `Ember.computed.alias` costs more in terms of performance, so only use it when + your really binding in both directions: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound", + twoWayWrittenWords: Ember.computed.alias("writtenWords") + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + {{textarea value=twoWayWrittenWords}} + ``` + + ```html + + + <-- both updated in real time --> + + + ``` + + ## Extension + + Internally, `{{textarea}}` creates an instance of `Ember.TextArea`, passing + arguments from the helper to `Ember.TextArea`'s `create` method. You can + extend the capabilities of text areas in your application by reopening this + class. For example, if you are deploying to browsers where the `required` + attribute is used, you can globally add support for the `required` attribute + on all `{{textarea}}`s' in your app by reopening `Ember.TextArea` or + `Ember.TextSupport` and adding it to the `attributeBindings` concatenated + property: + + ```javascript + Ember.TextArea.reopen({ + attributeBindings: ['required'] + }); + ``` + + Keep in mind when writing `Ember.TextArea` subclasses that `Ember.TextArea` + itself extends `Ember.Component`, meaning that it does NOT inherit + the `controller` of the parent view. + + See more about [Ember components](api/classes/Ember.Component.html) + + @method textarea + @for Ember.Handlebars.helpers + @param {Hash} options + */ + function textareaHelper(options) { + Ember.assert('You can only pass attributes to the `textarea` helper, not arguments', arguments.length < 2); + + var hash = options.hash, + types = options.hashTypes; + + return helpers.view.call(this, TextArea, options); + } + + __exports__.inputHelper = inputHelper; + __exports__.textareaHelper = textareaHelper; + }); +define("ember-handlebars/controls/checkbox", + ["ember-metal/property_get","ember-metal/property_set","ember-views/views/view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var set = __dependency2__.set; + var View = __dependency3__.View; + + /** + @module ember + @submodule ember-handlebars + */ + + /** + The internal class used to create text inputs when the `{{input}}` + helper is used with `type` of `checkbox`. + + See [handlebars.helpers.input](/api/classes/Ember.Handlebars.helpers.html#method_input) for usage details. + + ## Direct manipulation of `checked` + + The `checked` attribute of an `Ember.Checkbox` object should always be set + through the Ember object or by interacting with its rendered element + representation via the mouse, keyboard, or touch. Updating the value of the + checkbox via jQuery will result in the checked value of the object and its + element losing synchronization. + + ## Layout and LayoutName properties + + Because HTML `input` elements are self closing `layout` and `layoutName` + properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class Checkbox + @namespace Ember + @extends Ember.View + */ + var Checkbox = View.extend({ + classNames: ['ember-checkbox'], + + tagName: 'input', + + attributeBindings: ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', + 'autofocus', 'required', 'form'], + + type: "checkbox", + checked: false, + disabled: false, + indeterminate: false, + + init: function() { + this._super(); + this.on("change", this, this._updateElementValue); + }, + + didInsertElement: function() { + this._super(); + get(this, 'element').indeterminate = !!get(this, 'indeterminate'); + }, + + _updateElementValue: function() { + set(this, 'checked', this.$().prop('checked')); + } + }); + + __exports__["default"] = Checkbox; + }); +define("ember-handlebars/controls/select", + ["ember-handlebars-compiler","ember-metal/enumerable_utils","ember-metal/property_get","ember-metal/property_set","ember-views/views/view","ember-views/views/collection_view","ember-metal/utils","ember-metal/is_none","ember-metal/computed","ember-runtime/system/native_array","ember-metal/mixin","ember-metal/properties","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __exports__) { + "use strict"; + /*jshint eqeqeq:false newcap:false */ + + /** + @module ember + @submodule ember-handlebars + */ + + var EmberHandlebars = __dependency1__["default"]; + var EnumerableUtils = __dependency2__["default"]; + var get = __dependency3__.get; + var set = __dependency4__.set; + var View = __dependency5__.View; + var CollectionView = __dependency6__["default"]; + var isArray = __dependency7__.isArray; + var isNone = __dependency8__["default"]; + var computed = __dependency9__.computed; + var A = __dependency10__.A; + var observer = __dependency11__.observer; + var defineProperty = __dependency12__.defineProperty; + + var indexOf = EnumerableUtils.indexOf, + indexesOf = EnumerableUtils.indexesOf, + forEach = EnumerableUtils.forEach, + replace = EnumerableUtils.replace, + precompileTemplate = EmberHandlebars.compile; + + var SelectOption = View.extend({ + tagName: 'option', + attributeBindings: ['value', 'selected'], + + defaultTemplate: function(context, options) { + options = { data: options.data, hash: {} }; + EmberHandlebars.helpers.bind.call(context, "view.label", options); + }, + + init: function() { + this.labelPathDidChange(); + this.valuePathDidChange(); + + this._super(); + }, + + selected: computed(function() { + var content = get(this, 'content'), + selection = get(this, 'parentView.selection'); + if (get(this, 'parentView.multiple')) { + return selection && indexOf(selection, content.valueOf()) > -1; + } else { + // Primitives get passed through bindings as objects... since + // `new Number(4) !== 4`, we use `==` below + return content == selection; + } + }).property('content', 'parentView.selection'), + + labelPathDidChange: observer('parentView.optionLabelPath', function() { + var labelPath = get(this, 'parentView.optionLabelPath'); + + if (!labelPath) { return; } + + defineProperty(this, 'label', computed(function() { + return get(this, labelPath); + }).property(labelPath)); + }), + + valuePathDidChange: observer('parentView.optionValuePath', function() { + var valuePath = get(this, 'parentView.optionValuePath'); + + if (!valuePath) { return; } + + defineProperty(this, 'value', computed(function() { + return get(this, valuePath); + }).property(valuePath)); + }) + }); + + var SelectOptgroup = CollectionView.extend({ + tagName: 'optgroup', + attributeBindings: ['label'], + + selectionBinding: 'parentView.selection', + multipleBinding: 'parentView.multiple', + optionLabelPathBinding: 'parentView.optionLabelPath', + optionValuePathBinding: 'parentView.optionValuePath', + + itemViewClassBinding: 'parentView.optionView' + }); + + /** + The `Ember.Select` view class renders a + [select](https://developer.mozilla.org/en/HTML/Element/select) HTML element, + allowing the user to choose from a list of options. + + The text and `value` property of each ` + + + ``` + + The `value` attribute of the selected `"); + return buffer; + } + +function program3(depth0,data) { + + var stack1; + stack1 = helpers.each.call(depth0, "view.groupedContent", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(4, program4, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + else { data.buffer.push(''); } + } +function program4(depth0,data) { + + + data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.groupView", {hash:{ + 'content': ("content"), + 'label': ("label") + },hashTypes:{'content': "ID",'label': "ID"},hashContexts:{'content': depth0,'label': depth0},contexts:[depth0],types:["ID"],data:data}))); + } + +function program6(depth0,data) { + + var stack1; + stack1 = helpers.each.call(depth0, "view.content", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(7, program7, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + else { data.buffer.push(''); } + } +function program7(depth0,data) { + + + data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.optionView", {hash:{ + 'content': ("") + },hashTypes:{'content': "ID"},hashContexts:{'content': depth0},contexts:[depth0],types:["ID"],data:data}))); + } + + stack1 = helpers['if'].call(depth0, "view.prompt", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(1, program1, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + stack1 = helpers['if'].call(depth0, "view.optionGroupPath", {hash:{},hashTypes:{},hashContexts:{},inverse:self.program(6, program6, data),fn:self.program(3, program3, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + return buffer; + +}), + attributeBindings: ['multiple', 'disabled', 'tabindex', 'name', 'required', 'autofocus', + 'form', 'size'], + + /** + The `multiple` attribute of the select element. Indicates whether multiple + options can be selected. + + @property multiple + @type Boolean + @default false + */ + multiple: false, + + /** + The `disabled` attribute of the select element. Indicates whether + the element is disabled from interactions. + + @property disabled + @type Boolean + @default false + */ + disabled: false, + + /** + The `required` attribute of the select element. Indicates whether + a selected option is required for form validation. + + @property required + @type Boolean + @default false + */ + required: false, + + /** + The list of options. + + If `optionLabelPath` and `optionValuePath` are not overridden, this should + be a list of strings, which will serve simultaneously as labels and values. + + Otherwise, this should be a list of objects. For instance: + + ```javascript + Ember.Select.create({ + content: A([ + { id: 1, firstName: 'Yehuda' }, + { id: 2, firstName: 'Tom' } + ]), + optionLabelPath: 'content.firstName', + optionValuePath: 'content.id' + }); + ``` + + @property content + @type Array + @default null + */ + content: null, + + /** + When `multiple` is `false`, the element of `content` that is currently + selected, if any. + + When `multiple` is `true`, an array of such elements. + + @property selection + @type Object or Array + @default null + */ + selection: null, + + /** + In single selection mode (when `multiple` is `false`), value can be used to + get the current selection's value or set the selection by it's value. + + It is not currently supported in multiple selection mode. + + @property value + @type String + @default null + */ + value: computed(function(key, value) { + if (arguments.length === 2) { return value; } + var valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''); + return valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection'); + }).property('selection'), + + /** + If given, a top-most dummy option will be rendered to serve as a user + prompt. + + @property prompt + @type String + @default null + */ + prompt: null, + + /** + The path of the option labels. See [content](/api/classes/Ember.Select.html#property_content). + + @property optionLabelPath + @type String + @default 'content' + */ + optionLabelPath: 'content', + + /** + The path of the option values. See [content](/api/classes/Ember.Select.html#property_content). + + @property optionValuePath + @type String + @default 'content' + */ + optionValuePath: 'content', + + /** + The path of the option group. + When this property is used, `content` should be sorted by `optionGroupPath`. + + @property optionGroupPath + @type String + @default null + */ + optionGroupPath: null, + + /** + The view class for optgroup. + + @property groupView + @type Ember.View + @default Ember.SelectOptgroup + */ + groupView: SelectOptgroup, + + groupedContent: computed(function() { + var groupPath = get(this, 'optionGroupPath'); + var groupedContent = A(); + var content = get(this, 'content') || []; + + forEach(content, function(item) { + var label = get(item, groupPath); + + if (get(groupedContent, 'lastObject.label') !== label) { + groupedContent.pushObject({ + label: label, + content: A() + }); + } + + get(groupedContent, 'lastObject.content').push(item); + }); + + return groupedContent; + }).property('optionGroupPath', 'content.@each'), + + /** + The view class for option. + + @property optionView + @type Ember.View + @default Ember.SelectOption + */ + optionView: SelectOption, + + _change: function() { + if (get(this, 'multiple')) { + this._changeMultiple(); + } else { + this._changeSingle(); + } + }, + + selectionDidChange: observer('selection.@each', function() { + var selection = get(this, 'selection'); + if (get(this, 'multiple')) { + if (!isArray(selection)) { + set(this, 'selection', A([selection])); + return; + } + this._selectionDidChangeMultiple(); + } else { + this._selectionDidChangeSingle(); + } + }), + + valueDidChange: observer('value', function() { + var content = get(this, 'content'), + value = get(this, 'value'), + valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''), + selectedValue = (valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection')), + selection; + + if (value !== selectedValue) { + selection = content ? content.find(function(obj) { + return value === (valuePath ? get(obj, valuePath) : obj); + }) : null; + + this.set('selection', selection); + } + }), + + + _triggerChange: function() { + var selection = get(this, 'selection'); + var value = get(this, 'value'); + + if (!isNone(selection)) { this.selectionDidChange(); } + if (!isNone(value)) { this.valueDidChange(); } + + this._change(); + }, + + _changeSingle: function() { + var selectedIndex = this.$()[0].selectedIndex, + content = get(this, 'content'), + prompt = get(this, 'prompt'); + + if (!content || !get(content, 'length')) { return; } + if (prompt && selectedIndex === 0) { set(this, 'selection', null); return; } + + if (prompt) { selectedIndex -= 1; } + set(this, 'selection', content.objectAt(selectedIndex)); + }, + + + _changeMultiple: function() { + var options = this.$('option:selected'), + prompt = get(this, 'prompt'), + offset = prompt ? 1 : 0, + content = get(this, 'content'), + selection = get(this, 'selection'); + + if (!content) { return; } + if (options) { + var selectedIndexes = options.map(function() { + return this.index - offset; + }).toArray(); + var newSelection = content.objectsAt(selectedIndexes); + + if (isArray(selection)) { + replace(selection, 0, get(selection, 'length'), newSelection); + } else { + set(this, 'selection', newSelection); + } + } + }, + + _selectionDidChangeSingle: function() { + var el = this.get('element'); + if (!el) { return; } + + var content = get(this, 'content'), + selection = get(this, 'selection'), + selectionIndex = content ? indexOf(content, selection) : -1, + prompt = get(this, 'prompt'); + + if (prompt) { selectionIndex += 1; } + if (el) { el.selectedIndex = selectionIndex; } + }, + + _selectionDidChangeMultiple: function() { + var content = get(this, 'content'), + selection = get(this, 'selection'), + selectedIndexes = content ? indexesOf(content, selection) : [-1], + prompt = get(this, 'prompt'), + offset = prompt ? 1 : 0, + options = this.$('option'), + adjusted; + + if (options) { + options.each(function() { + adjusted = this.index > -1 ? this.index - offset : -1; + this.selected = indexOf(selectedIndexes, adjusted) > -1; + }); + } + }, + + init: function() { + this._super(); + this.on("didInsertElement", this, this._triggerChange); + this.on("change", this, this._change); + } + }); + + __exports__["default"] = Select + __exports__.Select = Select; + __exports__.SelectOption = SelectOption; + __exports__.SelectOptgroup = SelectOptgroup; + }); +define("ember-handlebars/controls/text_area", + ["ember-metal/property_get","ember-views/views/component","ember-handlebars/controls/text_support","ember-metal/mixin","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-handlebars + */ + var get = __dependency1__.get; + var Component = __dependency2__["default"]; + var TextSupport = __dependency3__["default"]; + var observer = __dependency4__.observer; + + /** + The internal class used to create textarea element when the `{{textarea}}` + helper is used. + + See [handlebars.helpers.textarea](/api/classes/Ember.Handlebars.helpers.html#method_textarea) for usage details. + + ## Layout and LayoutName properties + + Because HTML `textarea` elements do not contain inner HTML the `layout` and + `layoutName` properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class TextArea + @namespace Ember + @extends Ember.Component + @uses Ember.TextSupport + */ + var TextArea = Component.extend(TextSupport, { + classNames: ['ember-text-area'], + + tagName: "textarea", + attributeBindings: ['rows', 'cols', 'name', 'selectionEnd', 'selectionStart', 'wrap'], + rows: null, + cols: null, + + _updateElementValue: observer('value', function() { + // We do this check so cursor position doesn't get affected in IE + var value = get(this, 'value'), + $el = this.$(); + if ($el && value !== $el.val()) { + $el.val(value); + } + }), + + init: function() { + this._super(); + this.on("didInsertElement", this, this._updateElementValue); + } + + }); + + __exports__["default"] = TextArea; + }); +define("ember-handlebars/controls/text_field", + ["ember-metal/property_get","ember-metal/property_set","ember-views/views/component","ember-handlebars/controls/text_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var get = __dependency1__.get; + var set = __dependency2__.set; + var Component = __dependency3__["default"]; + var TextSupport = __dependency4__["default"]; + + /** + + The internal class used to create text inputs when the `{{input}}` + helper is used with `type` of `text`. + + See [Handlebars.helpers.input](/api/classes/Ember.Handlebars.helpers.html#method_input) for usage details. + + ## Layout and LayoutName properties + + Because HTML `input` elements are self closing `layout` and `layoutName` + properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class TextField + @namespace Ember + @extends Ember.Component + @uses Ember.TextSupport + */ + var TextField = Component.extend(TextSupport, { + + classNames: ['ember-text-field'], + tagName: "input", + attributeBindings: ['type', 'value', 'size', 'pattern', 'name', 'min', 'max', + 'accept', 'autocomplete', 'autosave', 'formaction', + 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', + 'height', 'inputmode', 'list', 'multiple', 'pattern', 'step', + 'width'], + + /** + The `value` attribute of the input element. As the user inputs text, this + property is updated live. + + @property value + @type String + @default "" + */ + value: "", + + /** + The `type` attribute of the input element. + + @property type + @type String + @default "text" + */ + type: "text", + + /** + The `size` of the text field in characters. + + @property size + @type String + @default null + */ + size: null, + + /** + The `pattern` attribute of input element. + + @property pattern + @type String + @default null + */ + pattern: null, + + /** + The `min` attribute of input element used with `type="number"` or `type="range"`. + + @property min + @type String + @default null + */ + min: null, + + /** + The `max` attribute of input element used with `type="number"` or `type="range"`. + + @property max + @type String + @default null + */ + max: null + }); + + __exports__["default"] = TextField; + }); +define("ember-handlebars/controls/text_support", + ["ember-metal/property_get","ember-metal/property_set","ember-metal/mixin","ember-runtime/mixins/target_action_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var get = __dependency1__.get; + var set = __dependency2__.set; + var Mixin = __dependency3__.Mixin; + var TargetActionSupport = __dependency4__["default"]; + + /** + Shared mixin used by `Ember.TextField` and `Ember.TextArea`. + + @class TextSupport + @namespace Ember + @uses Ember.TargetActionSupport + @extends Ember.Mixin + @private + */ + var TextSupport = Mixin.create(TargetActionSupport, { + value: "", + + attributeBindings: ['placeholder', 'disabled', 'maxlength', 'tabindex', 'readonly', + 'autofocus', 'form', 'selectionDirection', 'spellcheck', 'required', + 'title'], + placeholder: null, + disabled: false, + maxlength: null, + + init: function() { + this._super(); + this.on("focusOut", this, this._elementValueDidChange); + this.on("change", this, this._elementValueDidChange); + this.on("paste", this, this._elementValueDidChange); + this.on("cut", this, this._elementValueDidChange); + this.on("input", this, this._elementValueDidChange); + this.on("keyUp", this, this.interpretKeyEvents); + }, + + /** + The action to be sent when the user presses the return key. + + This is similar to the `{{action}}` helper, but is fired when + the user presses the return key when editing a text field, and sends + the value of the field as the context. + + @property action + @type String + @default null + */ + action: null, + + /** + The event that should send the action. + + Options are: + + * `enter`: the user pressed enter + * `keyPress`: the user pressed a key + + @property onEvent + @type String + @default enter + */ + onEvent: 'enter', + + /** + Whether they `keyUp` event that triggers an `action` to be sent continues + propagating to other views. + + By default, when the user presses the return key on their keyboard and + the text field has an `action` set, the action will be sent to the view's + controller and the key event will stop propagating. + + If you would like parent views to receive the `keyUp` event even after an + action has been dispatched, set `bubbles` to true. + + @property bubbles + @type Boolean + @default false + */ + bubbles: false, + + interpretKeyEvents: function(event) { + var map = TextSupport.KEY_EVENTS; + var method = map[event.keyCode]; + + this._elementValueDidChange(); + if (method) { return this[method](event); } + }, + + _elementValueDidChange: function() { + set(this, 'value', this.$().val()); + }, + + /** + The action to be sent when the user inserts a new line. + + Called by the `Ember.TextSupport` mixin on keyUp if keycode matches 13. + Uses sendAction to send the `enter` action to the controller. + + @method insertNewline + @param {Event} event + */ + insertNewline: function(event) { + sendAction('enter', this, event); + sendAction('insert-newline', this, event); + }, + + /** + Called when the user hits escape. + + Called by the `Ember.TextSupport` mixin on keyUp if keycode matches 27. + Uses sendAction to send the `escape-press` action to the controller. + + @method cancel + @param {Event} event + */ + cancel: function(event) { + sendAction('escape-press', this, event); + }, + + /** + Called when the text area is focused. + + @method focusIn + @param {Event} event + */ + focusIn: function(event) { + sendAction('focus-in', this, event); + }, + + /** + Called when the text area is blurred. + + @method focusOut + @param {Event} event + */ + focusOut: function(event) { + sendAction('focus-out', this, event); + }, + + /** + The action to be sent when the user presses a key. Enabled by setting + the `onEvent` property to `keyPress`. + + Uses sendAction to send the `keyPress` action to the controller. + + @method keyPress + @param {Event} event + */ + keyPress: function(event) { + sendAction('key-press', this, event); + } + + }); + + TextSupport.KEY_EVENTS = { + 13: 'insertNewline', + 27: 'cancel' + }; + + // In principle, this shouldn't be necessary, but the legacy + // sectionAction semantics for TextField are different from + // the component semantics so this method normalizes them. + function sendAction(eventName, view, event) { + var action = get(view, eventName), + on = get(view, 'onEvent'), + value = get(view, 'value'); + + // back-compat support for keyPress as an event name even though + // it's also a method name that consumes the event (and therefore + // incompatible with sendAction semantics). + if (on === eventName || (on === 'keyPress' && eventName === 'key-press')) { + view.sendAction('action', value); + } + + view.sendAction(eventName, value); + + if (action || on === eventName) { + if(!get(view, 'bubbles')) { + event.stopPropagation(); + } + } + } + + __exports__["default"] = TextSupport; + }); +define("ember-handlebars/ext", + ["ember-metal/core","ember-runtime/system/string","ember-handlebars-compiler","ember-metal/property_get","ember-metal/binding","ember-metal/error","ember-metal/mixin","ember-metal/is_empty","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.FEATURES, Ember.assert, Ember.Handlebars, Ember.lookup + // var emberAssert = Ember.assert; + + var fmt = __dependency2__.fmt; + + var EmberHandlebars = __dependency3__["default"]; + var helpers = EmberHandlebars.helpers; + + var get = __dependency4__.get; + var isGlobalPath = __dependency5__.isGlobalPath; + var EmberError = __dependency6__["default"]; + var IS_BINDING = __dependency7__.IS_BINDING; + + // late bound via requireModule because of circular dependencies. + var resolveHelper, + SimpleHandlebarsView; + + var isEmpty = __dependency8__["default"]; + + var slice = [].slice, originalTemplate = EmberHandlebars.template; + + /** + If a path starts with a reserved keyword, returns the root + that should be used. + + @private + @method normalizePath + @for Ember + @param root {Object} + @param path {String} + @param data {Hash} + */ + function normalizePath(root, path, data) { + var keywords = (data && data.keywords) || {}, + keyword, isKeyword; + + // Get the first segment of the path. For example, if the + // path is "foo.bar.baz", returns "foo". + keyword = path.split('.', 1)[0]; + + // Test to see if the first path is a keyword that has been + // passed along in the view's data hash. If so, we will treat + // that object as the new root. + if (keywords.hasOwnProperty(keyword)) { + // Look up the value in the template's data hash. + root = keywords[keyword]; + isKeyword = true; + + // Handle cases where the entire path is the reserved + // word. In that case, return the object itself. + if (path === keyword) { + path = ''; + } else { + // Strip the keyword from the path and look up + // the remainder from the newly found root. + path = path.substr(keyword.length+1); + } + } + + return { root: root, path: path, isKeyword: isKeyword }; + }; + + + /** + Lookup both on root and on window. If the path starts with + a keyword, the corresponding object will be looked up in the + template's data hash and used to resolve the path. + + @method get + @for Ember.Handlebars + @param {Object} root The object to look up the property on + @param {String} path The path to be lookedup + @param {Object} options The template's option hash + */ + function handlebarsGet(root, path, options) { + var data = options && options.data, + normalizedPath = normalizePath(root, path, data), + value; + + if (Ember.FEATURES.isEnabled("ember-handlebars-caps-lookup")) { + + // If the path starts with a capital letter, look it up on Ember.lookup, + // which defaults to the `window` object in browsers. + if (isGlobalPath(path)) { + value = get(Ember.lookup, path); + } else { + + // In cases where the path begins with a keyword, change the + // root to the value represented by that keyword, and ensure + // the path is relative to it. + value = get(normalizedPath.root, normalizedPath.path); + } + + } else { + root = normalizedPath.root; + path = normalizedPath.path; + + value = get(root, path); + + if (value === undefined && root !== Ember.lookup && isGlobalPath(path)) { + value = get(Ember.lookup, path); + } + } + + return value; + } + + /** + This method uses `Ember.Handlebars.get` to lookup a value, then ensures + that the value is escaped properly. + + If `unescaped` is a truthy value then the escaping will not be performed. + + @method getEscaped + @for Ember.Handlebars + @param {Object} root The object to look up the property on + @param {String} path The path to be lookedup + @param {Object} options The template's option hash + */ + function getEscaped(root, path, options) { + var result = handlebarsGet(root, path, options); + + if (result === null || result === undefined) { + result = ""; + } else if (!(result instanceof Handlebars.SafeString)) { + result = String(result); + } + if (!options.hash.unescaped){ + result = Handlebars.Utils.escapeExpression(result); + } + + return result; + }; + + function resolveParams(context, params, options) { + var resolvedParams = [], types = options.types, param, type; + + for (var i=0, l=params.length; i{{user.name}} + +
    +
    {{user.role.label}}
    + {{user.role.id}} + +

    {{user.role.description}}

    +
    + ``` + + `{{with}}` can be our best friend in these cases, + instead of writing `user.role.*` over and over, we use `{{#with user.role}}`. + Now the context within the `{{#with}} .. {{/with}}` block is `user.role` so you can do the following: + + ```handlebars +
    {{user.name}}
    + +
    + {{#with user.role}} +
    {{label}}
    + {{id}} + +

    {{description}}

    + {{/with}} +
    + ``` + + ### `as` operator + + This operator aliases the scope to a new name. It's helpful for semantic clarity and to retain + default scope or to reference from another `{{with}}` block. + + ```handlebars + // posts might not be + {{#with user.posts as blogPosts}} +
    + There are {{blogPosts.length}} blog posts written by {{user.name}}. +
    + + {{#each post in blogPosts}} +
  • {{post.title}}
    • + {{/each}} + {{/with}} + ``` + + Without the `as` operator, it would be impossible to reference `user.name` in the example above. + + NOTE: The alias should not reuse a name from the bound property path. + For example: `{{#with foo.bar as foo}}` is not supported because it attempts to alias using + the first part of the property path, `foo`. Instead, use `{{#with foo.bar as baz}}`. + + ### `controller` option + + Adding `controller='something'` instructs the `{{with}}` helper to create and use an instance of + the specified controller with the new context as its content. + + This is very similar to using an `itemController` option with the `{{each}}` helper. + + ```handlebars + {{#with users.posts controller='userBlogPosts'}} + {{!- The current context is wrapped in our controller instance }} + {{/with}} + ``` + + In the above example, the template provided to the `{{with}}` block is now wrapped in the + `userBlogPost` controller, which provides a very elegant way to decorate the context with custom + functions/properties. + + @method with + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function withHelper(context, options) { + if (arguments.length === 4) { + var keywordName, path, rootPath, normalized, contextPath; + + Ember.assert("If you pass more than one argument to the with helper, it must be in the form #with foo as bar", arguments[1] === "as"); + options = arguments[3]; + keywordName = arguments[2]; + path = arguments[0]; + + Ember.assert("You must pass a block to the with helper", options.fn && options.fn !== Handlebars.VM.noop); + + var localizedOptions = o_create(options); + localizedOptions.data = o_create(options.data); + localizedOptions.data.keywords = o_create(options.data.keywords || {}); + + if (isGlobalPath(path)) { + contextPath = path; + } else { + normalized = normalizePath(this, path, options.data); + path = normalized.path; + rootPath = normalized.root; + + // This is a workaround for the fact that you cannot bind separate objects + // together. When we implement that functionality, we should use it here. + var contextKey = jQuery.expando + guidFor(rootPath); + localizedOptions.data.keywords[contextKey] = rootPath; + // if the path is '' ("this"), just bind directly to the current context + contextPath = path ? contextKey + '.' + path : contextKey; + } + + emberBind(localizedOptions.data.keywords, keywordName, contextPath); + + return bind.call(this, path, localizedOptions, true, exists); + } else { + Ember.assert("You must pass exactly one argument to the with helper", arguments.length === 2); + Ember.assert("You must pass a block to the with helper", options.fn && options.fn !== Handlebars.VM.noop); + return helpers.bind.call(options.contexts[0], context, options); + } + } + + + /** + See [boundIf](/api/classes/Ember.Handlebars.helpers.html#method_boundIf) + and [unboundIf](/api/classes/Ember.Handlebars.helpers.html#method_unboundIf) + + @method if + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function ifHelper(context, options) { + Ember.assert("You must pass exactly one argument to the if helper", arguments.length === 2); + Ember.assert("You must pass a block to the if helper", options.fn && options.fn !== Handlebars.VM.noop); + if (options.data.isUnbound) { + return helpers.unboundIf.call(options.contexts[0], context, options); + } else { + return helpers.boundIf.call(options.contexts[0], context, options); + } + } + + /** + @method unless + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function unlessHelper(context, options) { + Ember.assert("You must pass exactly one argument to the unless helper", arguments.length === 2); + Ember.assert("You must pass a block to the unless helper", options.fn && options.fn !== Handlebars.VM.noop); + + var fn = options.fn, inverse = options.inverse; + + options.fn = inverse; + options.inverse = fn; + + if (options.data.isUnbound) { + return helpers.unboundIf.call(options.contexts[0], context, options); + } else { + return helpers.boundIf.call(options.contexts[0], context, options); + } + } + + /** + `bind-attr` allows you to create a binding between DOM element attributes and + Ember objects. For example: + + ```handlebars + imageTitle + ``` + + The above handlebars template will fill the ``'s `src` attribute will + the value of the property referenced with `"imageUrl"` and its `alt` + attribute with the value of the property referenced with `"imageTitle"`. + + If the rendering context of this template is the following object: + + ```javascript + { + imageUrl: 'http://lolcats.info/haz-a-funny', + imageTitle: 'A humorous image of a cat' + } + ``` + + The resulting HTML output will be: + + ```html + A humorous image of a cat + ``` + + `bind-attr` cannot redeclare existing DOM element attributes. The use of `src` + in the following `bind-attr` example will be ignored and the hard coded value + of `src="/failwhale.gif"` will take precedence: + + ```handlebars + imageTitle + ``` + + ### `bind-attr` and the `class` attribute + + `bind-attr` supports a special syntax for handling a number of cases unique + to the `class` DOM element attribute. The `class` attribute combines + multiple discrete values into a single attribute as a space-delimited + list of strings. Each string can be: + + * a string return value of an object's property. + * a boolean return value of an object's property + * a hard-coded value + + A string return value works identically to other uses of `bind-attr`. The + return value of the property will become the value of the attribute. For + example, the following view and template: + + ```javascript + AView = View.extend({ + someProperty: function() { + return "aValue"; + }.property() + }) + ``` + + ```handlebars + + ``` + + A boolean return value will insert a specified class name if the property + returns `true` and remove the class name if the property returns `false`. + + A class name is provided via the syntax + `somePropertyName:class-name-if-true`. + + ```javascript + AView = View.extend({ + someBool: true + }) + ``` + + ```handlebars + + ``` + + Result in the following rendered output: + + ```html + + ``` + + An additional section of the binding can be provided if you want to + replace the existing class instead of removing it when the boolean + value changes: + + ```handlebars + + ``` + + A hard-coded value can be used by prepending `:` to the desired + class name: `:class-name-to-always-apply`. + + ```handlebars + + ``` + + Results in the following rendered output: + + ```html + + ``` + + All three strategies - string return value, boolean return value, and + hard-coded value – can be combined in a single declaration: + + ```handlebars + + ``` + + @method bind-attr + @for Ember.Handlebars.helpers + @param {Hash} options + @return {String} HTML string + */ + function bindAttrHelper(options) { + var attrs = options.hash; + + Ember.assert("You must specify at least one hash argument to bind-attr", !!keys(attrs).length); + + var view = options.data.view; + var ret = []; + + // we relied on the behavior of calling without + // context to mean this === window, but when running + // "use strict", it's possible for this to === undefined; + var ctx = this || window; + + // Generate a unique id for this element. This will be added as a + // data attribute to the element so it can be looked up when + // the bound property changes. + var dataId = ++Ember.uuid; + + // Handle classes differently, as we can bind multiple classes + var classBindings = attrs['class']; + if (classBindings != null) { + var classResults = bindClasses(ctx, classBindings, view, dataId, options); + + ret.push('class="' + Handlebars.Utils.escapeExpression(classResults.join(' ')) + '"'); + delete attrs['class']; + } + + var attrKeys = keys(attrs); + + // For each attribute passed, create an observer and emit the + // current value of the property as an attribute. + forEach.call(attrKeys, function(attr) { + var path = attrs[attr], + normalized; + + Ember.assert(fmt("You must provide an expression as the value of bound attribute. You specified: %@=%@", [attr, path]), typeof path === 'string'); + + normalized = normalizePath(ctx, path, options.data); + + var value = (path === 'this') ? normalized.root : handlebarsGet(ctx, path, options), + type = typeOf(value); + + Ember.assert(fmt("Attributes must be numbers, strings or booleans, not %@", [value]), value === null || value === undefined || type === 'number' || type === 'string' || type === 'boolean'); + + var observer, invoker; + + observer = function observer() { + var result = handlebarsGet(ctx, path, options); + + Ember.assert(fmt("Attributes must be numbers, strings or booleans, not %@", [result]), + result === null || result === undefined || typeof result === 'number' || + typeof result === 'string' || typeof result === 'boolean'); + + var elem = view.$("[data-bindattr-" + dataId + "='" + dataId + "']"); + + // If we aren't able to find the element, it means the element + // to which we were bound has been removed from the view. + // In that case, we can assume the template has been re-rendered + // and we need to clean up the observer. + if (!elem || elem.length === 0) { + removeObserver(normalized.root, normalized.path, invoker); + return; + } + + View.applyAttributeBindings(elem, attr, result); + }; + + // Add an observer to the view for when the property changes. + // When the observer fires, find the element using the + // unique data id and update the attribute to the new value. + // Note: don't add observer when path is 'this' or path + // is whole keyword e.g. {{#each x in list}} ... {{bind-attr attr="x"}} + if (path !== 'this' && !(normalized.isKeyword && normalized.path === '' )) { + view.registerObserver(normalized.root, normalized.path, observer); + } + + // if this changes, also change the logic in ember-views/lib/views/view.js + if ((type === 'string' || (type === 'number' && !isNaN(value)))) { + ret.push(attr + '="' + Handlebars.Utils.escapeExpression(value) + '"'); + } else if (value && type === 'boolean') { + // The developer controls the attr name, so it should always be safe + ret.push(attr + '="' + attr + '"'); + } + }, this); + + // Add the unique identifier + // NOTE: We use all lower-case since Firefox has problems with mixed case in SVG + ret.push('data-bindattr-' + dataId + '="' + dataId + '"'); + return new SafeString(ret.join(' ')); + } + + /** + See `bind-attr` + + @method bindAttr + @for Ember.Handlebars.helpers + @deprecated + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function bindAttrHelperDeprecated() { + Ember.warn("The 'bindAttr' view helper is deprecated in favor of 'bind-attr'"); + return helpers['bind-attr'].apply(this, arguments); + } + + /** + Helper that, given a space-separated string of property paths and a context, + returns an array of class names. Calling this method also has the side + effect of setting up observers at those property paths, such that if they + change, the correct class name will be reapplied to the DOM element. + + For example, if you pass the string "fooBar", it will first look up the + "fooBar" value of the context. If that value is true, it will add the + "foo-bar" class to the current element (i.e., the dasherized form of + "fooBar"). If the value is a string, it will add that string as the class. + Otherwise, it will not add any new class name. + + @private + @method bindClasses + @for Ember.Handlebars + @param {Ember.Object} context The context from which to lookup properties + @param {String} classBindings A string, space-separated, of class bindings + to use + @param {View} view The view in which observers should look for the + element to update + @param {Srting} bindAttrId Optional bindAttr id used to lookup elements + @return {Array} An array of class names to add + */ + function bindClasses(context, classBindings, view, bindAttrId, options) { + var ret = [], newClass, value, elem; + + // Helper method to retrieve the property from the context and + // determine which class string to return, based on whether it is + // a Boolean or not. + var classStringForPath = function(root, parsedPath, options) { + var val, + path = parsedPath.path; + + if (path === 'this') { + val = root; + } else if (path === '') { + val = true; + } else { + val = handlebarsGet(root, path, options); + } + + return View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName); + }; + + // For each property passed, loop through and setup + // an observer. + forEach.call(classBindings.split(' '), function(binding) { + + // Variable in which the old class value is saved. The observer function + // closes over this variable, so it knows which string to remove when + // the property changes. + var oldClass; + + var observer, invoker; + + var parsedPath = View._parsePropertyPath(binding), + path = parsedPath.path, + pathRoot = context, + normalized; + + if (path !== '' && path !== 'this') { + normalized = normalizePath(context, path, options.data); + + pathRoot = normalized.root; + path = normalized.path; + } + + // Set up an observer on the context. If the property changes, toggle the + // class name. + observer = function() { + // Get the current value of the property + newClass = classStringForPath(context, parsedPath, options); + elem = bindAttrId ? view.$("[data-bindattr-" + bindAttrId + "='" + bindAttrId + "']") : view.$(); + + // If we can't find the element anymore, a parent template has been + // re-rendered and we've been nuked. Remove the observer. + if (!elem || elem.length === 0) { + removeObserver(pathRoot, path, invoker); + } else { + // If we had previously added a class to the element, remove it. + if (oldClass) { + elem.removeClass(oldClass); + } + + // If necessary, add a new class. Make sure we keep track of it so + // it can be removed in the future. + if (newClass) { + elem.addClass(newClass); + oldClass = newClass; + } else { + oldClass = null; + } + } + }; + + if (path !== '' && path !== 'this') { + view.registerObserver(pathRoot, path, observer); + } + + // We've already setup the observer; now we just need to figure out the + // correct behavior right now on the first pass through. + value = classStringForPath(context, parsedPath, options); + + if (value) { + ret.push(value); + + // Make sure we save the current value so that it can be removed if the + // observer fires. + oldClass = value; + } + }); + + return ret; + }; + + __exports__.bind = bind; + __exports__._triageMustacheHelper = _triageMustacheHelper; + __exports__.resolveHelper = resolveHelper; + __exports__.bindHelper = bindHelper; + __exports__.boundIfHelper = boundIfHelper; + __exports__.unboundIfHelper = unboundIfHelper; + __exports__.withHelper = withHelper; + __exports__.ifHelper = ifHelper; + __exports__.unlessHelper = unlessHelper; + __exports__.bindAttrHelper = bindAttrHelper; + __exports__.bindAttrHelperDeprecated = bindAttrHelperDeprecated; + __exports__.bindClasses = bindClasses; + }); +define("ember-handlebars/helpers/collection", + ["ember-metal/core","ember-metal/utils","ember-handlebars-compiler","ember-runtime/system/string","ember-metal/property_get","ember-handlebars/ext","ember-handlebars/helpers/view","ember-metal/computed","ember-views/views/collection_view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.deprecate + var inspect = __dependency2__.inspect; + + // var emberAssert = Ember.assert; + // emberDeprecate = Ember.deprecate; + + var EmberHandlebars = __dependency3__["default"]; + var helpers = EmberHandlebars.helpers; + + var fmt = __dependency4__.fmt; + var get = __dependency5__.get; + var handlebarsGet = __dependency6__.handlebarsGet; + var ViewHelper = __dependency7__.ViewHelper; + var computed = __dependency8__.computed; + var CollectionView = __dependency9__["default"]; + + var alias = computed.alias; + /** + `{{collection}}` is a `Ember.Handlebars` helper for adding instances of + `Ember.CollectionView` to a template. See [Ember.CollectionView](/api/classes/Ember.CollectionView.html) + for additional information on how a `CollectionView` functions. + + `{{collection}}`'s primary use is as a block helper with a `contentBinding` + option pointing towards an `Ember.Array`-compatible object. An `Ember.View` + instance will be created for each item in its `content` property. Each view + will have its own `content` property set to the appropriate item in the + collection. + + The provided block will be applied as the template for each item's view. + + Given an empty `` the following template: + + ```handlebars + {{#collection contentBinding="App.items"}} + Hi {{view.content.name}} + {{/collection}} + ``` + + And the following application code + + ```javascript + App = Ember.Application.create() + App.items = [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ] + ``` + + Will result in the HTML structure below + + ```html +
    +
    Hi Dave
    +
    Hi Mary
    +
    Hi Sara
    +
    + ``` + + ### Blockless use in a collection + + If you provide an `itemViewClass` option that has its own `template` you can + omit the block. + + The following template: + + ```handlebars + {{collection contentBinding="App.items" itemViewClass="App.AnItemView"}} + ``` + + And application code + + ```javascript + App = Ember.Application.create(); + App.items = [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ]; + + App.AnItemView = Ember.View.extend({ + template: Ember.Handlebars.compile("Greetings {{view.content.name}}") + }); + ``` + + Will result in the HTML structure below + + ```html +
    +
    Greetings Dave
    +
    Greetings Mary
    +
    Greetings Sara
    +
    + ``` + + ### Specifying a CollectionView subclass + + By default the `{{collection}}` helper will create an instance of + `Ember.CollectionView`. You can supply a `Ember.CollectionView` subclass to + the helper by passing it as the first argument: + + ```handlebars + {{#collection App.MyCustomCollectionClass contentBinding="App.items"}} + Hi {{view.content.name}} + {{/collection}} + ``` + + ### Forwarded `item.*`-named Options + + As with the `{{view}}`, helper options passed to the `{{collection}}` will be + set on the resulting `Ember.CollectionView` as properties. Additionally, + options prefixed with `item` will be applied to the views rendered for each + item (note the camelcasing): + + ```handlebars + {{#collection contentBinding="App.items" + itemTagName="p" + itemClassNames="greeting"}} + Howdy {{view.content.name}} + {{/collection}} + ``` + + Will result in the following HTML structure: + + ```html +
    +

    Howdy Dave

    +

    Howdy Mary

    +

    Howdy Sara

    +
    + ``` + + @method collection + @for Ember.Handlebars.helpers + @param {String} path + @param {Hash} options + @return {String} HTML string + @deprecated Use `{{each}}` helper instead. + */ + function collectionHelper(path, options) { + Ember.deprecate("Using the {{collection}} helper without specifying a class has been deprecated as the {{each}} helper now supports the same functionality.", path !== 'collection'); + + // If no path is provided, treat path param as options. + if (path && path.data && path.data.isRenderData) { + options = path; + path = undefined; + Ember.assert("You cannot pass more than one argument to the collection helper", arguments.length === 1); + } else { + Ember.assert("You cannot pass more than one argument to the collection helper", arguments.length === 2); + } + + var fn = options.fn; + var data = options.data; + var inverse = options.inverse; + var view = options.data.view; + + + var controller, container; + // If passed a path string, convert that into an object. + // Otherwise, just default to the standard class. + var collectionClass; + if (path) { + controller = data.keywords.controller; + container = controller && controller.container; + collectionClass = handlebarsGet(this, path, options) || container.lookupFactory('view:' + path); + Ember.assert(fmt("%@ #collection: Could not find collection class %@", [data.view, path]), !!collectionClass); + } + else { + collectionClass = CollectionView; + } + + var hash = options.hash, itemHash = {}, match; + + // Extract item view class if provided else default to the standard class + var collectionPrototype = collectionClass.proto(), itemViewClass; + + if (hash.itemView) { + controller = data.keywords.controller; + Ember.assert('You specified an itemView, but the current context has no ' + + 'container to look the itemView up in. This probably means ' + + 'that you created a view manually, instead of through the ' + + 'container. Instead, use container.lookup("view:viewName"), ' + + 'which will properly instantiate your view.', + controller && controller.container); + container = controller.container; + itemViewClass = container.lookupFactory('view:' + hash.itemView); + Ember.assert('You specified the itemView ' + hash.itemView + ", but it was " + + "not found at " + container.describe("view:" + hash.itemView) + + " (and it was not registered in the container)", !!itemViewClass); + } else if (hash.itemViewClass) { + itemViewClass = handlebarsGet(collectionPrototype, hash.itemViewClass, options); + } else { + itemViewClass = collectionPrototype.itemViewClass; + } + + Ember.assert(fmt("%@ #collection: Could not find itemViewClass %@", [data.view, itemViewClass]), !!itemViewClass); + + delete hash.itemViewClass; + delete hash.itemView; + + // Go through options passed to the {{collection}} helper and extract options + // that configure item views instead of the collection itself. + for (var prop in hash) { + if (hash.hasOwnProperty(prop)) { + match = prop.match(/^item(.)(.*)$/); + + if (match && prop !== 'itemController') { + // Convert itemShouldFoo -> shouldFoo + itemHash[match[1].toLowerCase() + match[2]] = hash[prop]; + // Delete from hash as this will end up getting passed to the + // {{view}} helper method. + delete hash[prop]; + } + } + } + + if (fn) { + itemHash.template = fn; + delete options.fn; + } + + var emptyViewClass; + if (inverse && inverse !== EmberHandlebars.VM.noop) { + emptyViewClass = get(collectionPrototype, 'emptyViewClass'); + emptyViewClass = emptyViewClass.extend({ + template: inverse, + tagName: itemHash.tagName + }); + } else if (hash.emptyViewClass) { + emptyViewClass = handlebarsGet(this, hash.emptyViewClass, options); + } + if (emptyViewClass) { hash.emptyView = emptyViewClass; } + + if (!hash.keyword) { + itemHash._context = alias('content'); + } + + var viewOptions = ViewHelper.propertiesFromHTMLOptions({ data: data, hash: itemHash }, this); + hash.itemViewClass = itemViewClass.extend(viewOptions); + + return helpers.view.call(this, collectionClass, options); + } + + __exports__["default"] = collectionHelper; + }); +define("ember-handlebars/helpers/debug", + ["ember-metal/core","ember-metal/utils","ember-metal/logger","ember-metal/property_get","ember-handlebars/ext","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + /*jshint debug:true*/ + + /** + @module ember + @submodule ember-handlebars + */ + var Ember = __dependency1__["default"]; + // Ember.FEATURES, + var inspect = __dependency2__.inspect; + var Logger = __dependency3__["default"]; + + var get = __dependency4__.get; + var normalizePath = __dependency5__.normalizePath; + var handlebarsGet = __dependency5__.handlebarsGet; + + var a_slice = [].slice; + + /** + `log` allows you to output the value of variables in the current rendering + context. `log` also accepts primitive types such as strings or numbers. + + ```handlebars + {{log "myVariable:" myVariable }} + ``` + + @method log + @for Ember.Handlebars.helpers + @param {String} property + */ + function logHelper() { + var params = a_slice.call(arguments, 0, -1), + options = arguments[arguments.length - 1], + logger = Logger.log, + values = [], + allowPrimitives = true; + + for (var i = 0; i < params.length; i++) { + var type = options.types[i]; + + if (type === 'ID' || !allowPrimitives) { + var context = (options.contexts && options.contexts[i]) || this, + normalized = normalizePath(context, params[i], options.data); + + if (normalized.path === 'this') { + values.push(normalized.root); + } else { + values.push(handlebarsGet(normalized.root, normalized.path, options)); + } + } else { + values.push(params[i]); + } + } + + logger.apply(logger, values); + }; + + /** + Execute the `debugger` statement in the current context. + + ```handlebars + {{debugger}} + ``` + + Before invoking the `debugger` statement, there + are a few helpful variables defined in the + body of this helper that you can inspect while + debugging that describe how and where this + helper was invoked: + + - templateContext: this is most likely a controller + from which this template looks up / displays properties + - typeOfTemplateContext: a string description of + what the templateContext is + + For example, if you're wondering why a value `{{foo}}` + isn't rendering as expected within a template, you + could place a `{{debugger}}` statement, and when + the `debugger;` breakpoint is hit, you can inspect + `templateContext`, determine if it's the object you + expect, and/or evaluate expressions in the console + to perform property lookups on the `templateContext`: + + ``` + > templateContext.get('foo') // -> "" + ``` + + @method debugger + @for Ember.Handlebars.helpers + @param {String} property + */ + function debuggerHelper(options) { + + // These are helpful values you can inspect while debugging. + var templateContext = this; + var typeOfTemplateContext = inspect(templateContext); + + debugger; + } + + __exports__.logHelper = logHelper; + __exports__.debuggerHelper = debuggerHelper; + }); +define("ember-handlebars/helpers/each", + ["ember-metal/core","ember-handlebars-compiler","ember-runtime/system/string","ember-metal/property_get","ember-metal/property_set","ember-handlebars/views/metamorph_view","ember-views/views/collection_view","ember-metal/binding","ember-runtime/controllers/controller","ember-runtime/controllers/array_controller","ember-runtime/mixins/array","ember-runtime/copy","ember-metal/run_loop","ember-metal/observer","ember-metal/events","ember-handlebars/ext","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __dependency16__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-handlebars + */ + var Ember = __dependency1__["default"]; + // Ember.assert;, Ember.K + // var emberAssert = Ember.assert, + var K = Ember.K; + + var EmberHandlebars = __dependency2__["default"]; + var helpers = EmberHandlebars.helpers; + + var fmt = __dependency3__.fmt; + var get = __dependency4__.get; + var set = __dependency5__.set; + var _Metamorph = __dependency6__._Metamorph; + var _MetamorphView = __dependency6__._MetamorphView; + var CollectionView = __dependency7__["default"]; + var Binding = __dependency8__.Binding; + var ControllerMixin = __dependency9__.ControllerMixin; + var ArrayController = __dependency10__["default"]; + var EmberArray = __dependency11__["default"]; + var copy = __dependency12__["default"]; + var run = __dependency13__["default"]; + var addObserver = __dependency14__.addObserver; + var removeObserver = __dependency14__.removeObserver; + var addBeforeObserver = __dependency14__.addBeforeObserver; + var removeBeforeObserver = __dependency14__.removeBeforeObserver; + var on = __dependency15__.on; + + var handlebarsGet = __dependency16__.handlebarsGet; + + var EachView = CollectionView.extend(_Metamorph, { + init: function() { + var itemController = get(this, 'itemController'); + var binding; + + if (itemController) { + var controller = get(this, 'controller.container').lookupFactory('controller:array').create({ + _isVirtual: true, + parentController: get(this, 'controller'), + itemController: itemController, + target: get(this, 'controller'), + _eachView: this + }); + + this.disableContentObservers(function() { + set(this, 'content', controller); + binding = new Binding('content', '_eachView.dataSource').oneWay(); + binding.connect(controller); + }); + + set(this, '_arrayController', controller); + } else { + this.disableContentObservers(function() { + binding = new Binding('content', 'dataSource').oneWay(); + binding.connect(this); + }); + } + + return this._super(); + }, + + _assertArrayLike: function(content) { + Ember.assert(fmt("The value that #each loops over must be an Array. You " + + "passed %@, but it should have been an ArrayController", + [content.constructor]), + !ControllerMixin.detect(content) || + (content && content.isGenerated) || + content instanceof ArrayController); + Ember.assert(fmt("The value that #each loops over must be an Array. You passed %@", [(ControllerMixin.detect(content) && content.get('model') !== undefined) ? fmt("'%@' (wrapped in %@)", [content.get('model'), content]) : content]), EmberArray.detect(content)); + }, + + disableContentObservers: function(callback) { + removeBeforeObserver(this, 'content', null, '_contentWillChange'); + removeObserver(this, 'content', null, '_contentDidChange'); + + callback.call(this); + + addBeforeObserver(this, 'content', null, '_contentWillChange'); + addObserver(this, 'content', null, '_contentDidChange'); + }, + + itemViewClass: _MetamorphView, + emptyViewClass: _MetamorphView, + + createChildView: function(view, attrs) { + view = this._super(view, attrs); + + // At the moment, if a container view subclass wants + // to insert keywords, it is responsible for cloning + // the keywords hash. This will be fixed momentarily. + var keyword = get(this, 'keyword'); + var content = get(view, 'content'); + + if (keyword) { + var data = get(view, 'templateData'); + + data = copy(data); + data.keywords = view.cloneKeywords(); + set(view, 'templateData', data); + + // In this case, we do not bind, because the `content` of + // a #each item cannot change. + data.keywords[keyword] = content; + } + + // If {{#each}} is looping over an array of controllers, + // point each child view at their respective controller. + if (content && content.isController) { + set(view, 'controller', content); + } + + return view; + }, + + destroy: function() { + if (!this._super()) { return; } + + var arrayController = get(this, '_arrayController'); + + if (arrayController) { + arrayController.destroy(); + } + + return this; + } + }); + + // Defeatureify doesn't seem to like nested functions that need to be removed + function _addMetamorphCheck() { + EachView.reopen({ + _checkMetamorph: on('didInsertElement', function() { + Ember.assert("The metamorph tags, " + + this.morph.start + " and " + this.morph.end + + ", have different parents.\nThe browser has fixed your template to output valid HTML (for example, check that you have properly closed all tags and have used a TBODY tag when creating a table with '{{#each}}')", + document.getElementById( this.morph.start ).parentNode === + document.getElementById( this.morph.end ).parentNode + ); + }) + }); + } + + // until ember-debug is es6ed + var runInDebug = function(f){f()}; + runInDebug( function() { + _addMetamorphCheck(); + }); + + var GroupedEach = EmberHandlebars.GroupedEach = function(context, path, options) { + var self = this, + normalized = EmberHandlebars.normalizePath(context, path, options.data); + + this.context = context; + this.path = path; + this.options = options; + this.template = options.fn; + this.containingView = options.data.view; + this.normalizedRoot = normalized.root; + this.normalizedPath = normalized.path; + this.content = this.lookupContent(); + + this.addContentObservers(); + this.addArrayObservers(); + + this.containingView.on('willClearRender', function() { + self.destroy(); + }); + }; + + GroupedEach.prototype = { + contentWillChange: function() { + this.removeArrayObservers(); + }, + + contentDidChange: function() { + this.content = this.lookupContent(); + this.addArrayObservers(); + this.rerenderContainingView(); + }, + + contentArrayWillChange: K, + + contentArrayDidChange: function() { + this.rerenderContainingView(); + }, + + lookupContent: function() { + return handlebarsGet(this.normalizedRoot, this.normalizedPath, this.options); + }, + + addArrayObservers: function() { + if (!this.content) { return; } + + this.content.addArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + }, + + removeArrayObservers: function() { + if (!this.content) { return; } + + this.content.removeArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + }, + + addContentObservers: function() { + addBeforeObserver(this.normalizedRoot, this.normalizedPath, this, this.contentWillChange); + addObserver(this.normalizedRoot, this.normalizedPath, this, this.contentDidChange); + }, + + removeContentObservers: function() { + removeBeforeObserver(this.normalizedRoot, this.normalizedPath, this.contentWillChange); + removeObserver(this.normalizedRoot, this.normalizedPath, this.contentDidChange); + }, + + render: function() { + if (!this.content) { return; } + + var content = this.content, + contentLength = get(content, 'length'), + data = this.options.data, + template = this.template; + + data.insideEach = true; + for (var i = 0; i < contentLength; i++) { + template(content.objectAt(i), { data: data }); + } + }, + + rerenderContainingView: function() { + var self = this; + run.scheduleOnce('render', this, function() { + // It's possible it's been destroyed after we enqueued a re-render call. + if (!self.destroyed) { + self.containingView.rerender(); + } + }); + }, + + destroy: function() { + this.removeContentObservers(); + if (this.content) { + this.removeArrayObservers(); + } + this.destroyed = true; + } + }; + + /** + The `{{#each}}` helper loops over elements in a collection, rendering its + block once for each item. It is an extension of the base Handlebars `{{#each}}` + helper: + + ```javascript + Developers = [{name: 'Yehuda'},{name: 'Tom'}, {name: 'Paul'}]; + ``` + + ```handlebars + {{#each Developers}} + {{name}} + {{/each}} + ``` + + `{{each}}` supports an alternative syntax with element naming: + + ```handlebars + {{#each person in Developers}} + {{person.name}} + {{/each}} + ``` + + When looping over objects that do not have properties, `{{this}}` can be used + to render the object: + + ```javascript + DeveloperNames = ['Yehuda', 'Tom', 'Paul'] + ``` + + ```handlebars + {{#each DeveloperNames}} + {{this}} + {{/each}} + ``` + ### {{else}} condition + `{{#each}}` can have a matching `{{else}}`. The contents of this block will render + if the collection is empty. + + ``` + {{#each person in Developers}} + {{person.name}} + {{else}} +

    Sorry, nobody is available for this task.

    + {{/each}} + ``` + ### Specifying a View class for items + If you provide an `itemViewClass` option that references a view class + with its own `template` you can omit the block. + + The following template: + + ```handlebars + {{#view App.MyView }} + {{each view.items itemViewClass="App.AnItemView"}} + {{/view}} + ``` + + And application code + + ```javascript + App = Ember.Application.create({ + MyView: Ember.View.extend({ + items: [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ] + }) + }); + + App.AnItemView = Ember.View.extend({ + template: Ember.Handlebars.compile("Greetings {{name}}") + }); + ``` + + Will result in the HTML structure below + + ```html +
    +
    Greetings Dave
    +
    Greetings Mary
    +
    Greetings Sara
    +
    + ``` + + If an `itemViewClass` is defined on the helper, and therefore the helper is not + being used as a block, an `emptyViewClass` can also be provided optionally. + The `emptyViewClass` will match the behavior of the `{{else}}` condition + described above. That is, the `emptyViewClass` will render if the collection + is empty. + + ### Representing each item with a Controller. + By default the controller lookup within an `{{#each}}` block will be + the controller of the template where the `{{#each}}` was used. If each + item needs to be presented by a custom controller you can provide a + `itemController` option which references a controller by lookup name. + Each item in the loop will be wrapped in an instance of this controller + and the item itself will be set to the `content` property of that controller. + + This is useful in cases where properties of model objects need transformation + or synthesis for display: + + ```javascript + App.DeveloperController = Ember.ObjectController.extend({ + isAvailableForHire: function() { + return !this.get('content.isEmployed') && this.get('content.isSeekingWork'); + }.property('isEmployed', 'isSeekingWork') + }) + ``` + + ```handlebars + {{#each person in developers itemController="developer"}} + {{person.name}} {{#if person.isAvailableForHire}}Hire me!{{/if}} + {{/each}} + ``` + + Each itemController will receive a reference to the current controller as + a `parentController` property. + + ### (Experimental) Grouped Each + + When used in conjunction with the experimental [group helper](https://github.com/emberjs/group-helper), + you can inform Handlebars to re-render an entire group of items instead of + re-rendering them one at a time (in the event that they are changed en masse + or an item is added/removed). + + ```handlebars + {{#group}} + {{#each people}} + {{firstName}} {{lastName}} + {{/each}} + {{/group}} + ``` + + This can be faster than the normal way that Handlebars re-renders items + in some cases. + + If for some reason you have a group with more than one `#each`, you can make + one of the collections be updated in normal (non-grouped) fashion by setting + the option `groupedRows=true` (counter-intuitive, I know). + + For example, + + ```handlebars + {{dealershipName}} + + {{#group}} + {{#each dealers}} + {{firstName}} {{lastName}} + {{/each}} + + {{#each car in cars groupedRows=true}} + {{car.make}} {{car.model}} {{car.color}} + {{/each}} + {{/group}} + ``` + Any change to `dealershipName` or the `dealers` collection will cause the + entire group to be re-rendered. However, changes to the `cars` collection + will be re-rendered individually (as normal). + + Note that `group` behavior is also disabled by specifying an `itemViewClass`. + + @method each + @for Ember.Handlebars.helpers + @param [name] {String} name for item (used with `in`) + @param [path] {String} path + @param [options] {Object} Handlebars key/value pairs of options + @param [options.itemViewClass] {String} a path to a view class used for each item + @param [options.itemController] {String} name of a controller to be created for each item + @param [options.groupedRows] {boolean} enable normal item-by-item rendering when inside a `#group` helper + */ + function eachHelper(path, options) { + var ctx; + + if (arguments.length === 4) { + Ember.assert("If you pass more than one argument to the each helper, it must be in the form #each foo in bar", arguments[1] === "in"); + + var keywordName = arguments[0]; + + options = arguments[3]; + path = arguments[2]; + if (path === '') { path = "this"; } + + options.hash.keyword = keywordName; + } + + if (arguments.length === 1) { + options = path; + path = 'this'; + } + + options.hash.dataSourceBinding = path; + // Set up emptyView as a metamorph with no tag + //options.hash.emptyViewClass = Ember._MetamorphView; + + // can't rely on this default behavior when use strict + ctx = this || window; + if (options.data.insideGroup && !options.hash.groupedRows && !options.hash.itemViewClass) { + new GroupedEach(ctx, path, options).render(); + } else { + // ES6TODO: figure out how to do this without global lookup. + return helpers.collection.call(ctx, 'Ember.Handlebars.EachView', options); + } + } + + __exports__.EachView = EachView; + __exports__.GroupedEach = GroupedEach; + __exports__.eachHelper = eachHelper; + }); +define("ember-handlebars/helpers/loc", + ["ember-runtime/system/string","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var loc = __dependency1__.loc; + + /** + @module ember + @submodule ember-handlebars + */ + + // ES6TODO: + // Pretty sure this can be expressed as + // var locHelper EmberStringUtils.loc ? + + /** + `loc` looks up the string in the localized strings hash. + This is a convenient way to localize text. For example: + + ```html + + ``` + + Take note that `"welcome"` is a string and not an object + reference. + + @method loc + @for Ember.Handlebars.helpers + @param {String} str The string to format + */ + function locHelper(str) { + return loc(str); + } + + __exports__["default"] = locHelper; + }); +define("ember-handlebars/helpers/partial", + ["ember-metal/core","ember-metal/is_none","ember-handlebars/ext","ember-handlebars/helpers/binding","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert + // var emberAssert = Ember.assert; + + var isNone = __dependency2__.isNone; + var handlebarsGet = __dependency3__.handlebarsGet; + var bind = __dependency4__.bind; + + /** + @module ember + @submodule ember-handlebars + */ + + /** + The `partial` helper renders another template without + changing the template context: + + ```handlebars + {{foo}} + {{partial "nav"}} + ``` + + The above example template will render a template named + "_nav", which has the same context as the parent template + it's rendered into, so if the "_nav" template also referenced + `{{foo}}`, it would print the same thing as the `{{foo}}` + in the above example. + + If a "_nav" template isn't found, the `partial` helper will + fall back to a template named "nav". + + ## Bound template names + + The parameter supplied to `partial` can also be a path + to a property containing a template name, e.g.: + + ```handlebars + {{partial someTemplateName}} + ``` + + The above example will look up the value of `someTemplateName` + on the template context (e.g. a controller) and use that + value as the name of the template to render. If the resolved + value is falsy, nothing will be rendered. If `someTemplateName` + changes, the partial will be re-rendered using the new template + name. + + ## Setting the partial's context with `with` + + The `partial` helper can be used in conjunction with the `with` + helper to set a context that will be used by the partial: + + ```handlebars + {{#with currentUser}} + {{partial "user_info"}} + {{/with}} + ``` + + @method partial + @for Ember.Handlebars.helpers + @param {String} partialName the name of the template to render minus the leading underscore + */ + + function partialHelper(name, options) { + + var context = (options.contexts && options.contexts.length) ? options.contexts[0] : this; + + if (options.types[0] === "ID") { + // Helper was passed a property path; we need to + // create a binding that will re-render whenever + // this property changes. + options.fn = function(context, fnOptions) { + var partialName = handlebarsGet(context, name, fnOptions); + renderPartial(context, partialName, fnOptions); + }; + + return bind.call(context, name, options, true, exists); + } else { + // Render the partial right into parent template. + renderPartial(context, name, options); + } + } + + function exists(value) { + return !isNone(value); + } + + function renderPartial(context, name, options) { + var nameParts = name.split("/"), + lastPart = nameParts[nameParts.length - 1]; + + nameParts[nameParts.length - 1] = "_" + lastPart; + + var view = options.data.view, + underscoredName = nameParts.join("/"), + template = view.templateForName(underscoredName), + deprecatedTemplate = !template && view.templateForName(name); + + Ember.assert("Unable to find partial with name '"+name+"'.", template || deprecatedTemplate); + + template = template || deprecatedTemplate; + + template(context, { data: options.data }); + } + + __exports__["default"] = partialHelper; + }); +define("ember-handlebars/helpers/shared", + ["ember-handlebars/ext","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var handlebarsGet = __dependency1__.handlebarsGet; + + function resolvePaths(options) { + var ret = [], + contexts = options.contexts, + roots = options.roots, + data = options.data; + + for (var i=0, l=contexts.length; i + {{#with loggedInUser}} + Last Login: {{lastLogin}} + User Info: {{template "user_info"}} + {{/with}} + + ``` + + ```html + + ``` + + ```handlebars + {{#if isUser}} + {{template "user_info"}} + {{else}} + {{template "unlogged_user_info"}} + {{/if}} + ``` + + This helper looks for templates in the global `Ember.TEMPLATES` hash. If you + add `"; + return testEl.firstChild.innerHTML === ''; + })(); + + // IE 8 (and likely earlier) likes to move whitespace preceeding + // a script tag to appear after it. This means that we can + // accidentally remove whitespace when updating a morph. + var movesWhitespace = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "Test: Value"; + return testEl.childNodes[0].nodeValue === 'Test:' && + testEl.childNodes[2].nodeValue === ' Value'; + })(); + + // Use this to find children by ID instead of using jQuery + var findChildById = function(element, id) { + if (element.getAttribute('id') === id) { return element; } + + var len = element.childNodes.length, idx, node, found; + for (idx=0; idx 0) { + var len = matches.length, idx; + for (idx=0; idxTest'); + canSet = el.options.length === 1; + } + + innerHTMLTags[tagName] = canSet; + + return canSet; + }; + + var setInnerHTML = function(element, html) { + var tagName = element.tagName; + + if (canSetInnerHTML(tagName)) { + setInnerHTMLWithoutFix(element, html); + } else { + // Firefox versions < 11 do not have support for element.outerHTML. + var outerHTML = element.outerHTML || new XMLSerializer().serializeToString(element); + Ember.assert("Can't set innerHTML on "+element.tagName+" in this browser", outerHTML); + + var startTag = outerHTML.match(new RegExp("<"+tagName+"([^>]*)>", 'i'))[0], + endTag = ''; + + var wrapper = document.createElement('div'); + setInnerHTMLWithoutFix(wrapper, startTag + html + endTag); + element = wrapper.firstChild; + while (element.tagName !== tagName) { + element = element.nextSibling; + } + } + + return element; + }; + + function isSimpleClick(event) { + var modifier = event.shiftKey || event.metaKey || event.altKey || event.ctrlKey, + secondaryClick = event.which > 1; // IE9 may return undefined + + return !modifier && !secondaryClick; + } + + __exports__.setInnerHTML = setInnerHTML; + __exports__.isSimpleClick = isSimpleClick; + }); +define("ember-views/views/collection_view", + ["ember-metal/core","ember-metal/platform","ember-metal/merge","ember-metal/property_get","ember-metal/property_set","ember-runtime/system/string","ember-views/views/container_view","ember-views/views/view","ember-metal/mixin","ember-runtime/mixins/array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-views + */ + + var Ember = __dependency1__["default"]; + // Ember.assert + var create = __dependency2__.create; + var merge = __dependency3__["default"]; + var get = __dependency4__.get; + var set = __dependency5__.set; + var fmt = __dependency6__.fmt; + var ContainerView = __dependency7__["default"]; + var CoreView = __dependency8__.CoreView; + var View = __dependency8__.View; + var observer = __dependency9__.observer; + var beforeObserver = __dependency9__.beforeObserver; + var EmberArray = __dependency10__["default"]; + + /** + `Ember.CollectionView` is an `Ember.View` descendent responsible for managing + a collection (an array or array-like object) by maintaining a child view object + and associated DOM representation for each item in the array and ensuring + that child views and their associated rendered HTML are updated when items in + the array are added, removed, or replaced. + + ## Setting content + + The managed collection of objects is referenced as the `Ember.CollectionView` + instance's `content` property. + + ```javascript + someItemsView = Ember.CollectionView.create({ + content: ['A', 'B','C'] + }) + ``` + + The view for each item in the collection will have its `content` property set + to the item. + + ## Specifying itemViewClass + + By default the view class for each item in the managed collection will be an + instance of `Ember.View`. You can supply a different class by setting the + `CollectionView`'s `itemViewClass` property. + + Given an empty `` and the following code: + + ```javascript + someItemsView = Ember.CollectionView.create({ + classNames: ['a-collection'], + content: ['A','B','C'], + itemViewClass: Ember.View.extend({ + template: Ember.Handlebars.compile("the letter: {{view.content}}") + }) + }); + + someItemsView.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
    +
    the letter: A
    +
    the letter: B
    +
    the letter: C
    +
    + ``` + + ## Automatic matching of parent/child tagNames + + Setting the `tagName` property of a `CollectionView` to any of + "ul", "ol", "table", "thead", "tbody", "tfoot", "tr", or "select" will result + in the item views receiving an appropriately matched `tagName` property. + + Given an empty `` and the following code: + + ```javascript + anUnorderedListView = Ember.CollectionView.create({ + tagName: 'ul', + content: ['A','B','C'], + itemViewClass: Ember.View.extend({ + template: Ember.Handlebars.compile("the letter: {{view.content}}") + }) + }); + + anUnorderedListView.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
      +
    • the letter: A
      • +
    • the letter: B
      • +
    • the letter: C
      • +
    + ``` + + Additional `tagName` pairs can be provided by adding to + `Ember.CollectionView.CONTAINER_MAP ` + + ```javascript + Ember.CollectionView.CONTAINER_MAP['article'] = 'section' + ``` + + ## Programmatic creation of child views + + For cases where additional customization beyond the use of a single + `itemViewClass` or `tagName` matching is required CollectionView's + `createChildView` method can be overidden: + + ```javascript + CustomCollectionView = Ember.CollectionView.extend({ + createChildView: function(viewClass, attrs) { + if (attrs.content.kind == 'album') { + viewClass = App.AlbumView; + } else { + viewClass = App.SongView; + } + return this._super(viewClass, attrs); + } + }); + ``` + + ## Empty View + + You can provide an `Ember.View` subclass to the `Ember.CollectionView` + instance as its `emptyView` property. If the `content` property of a + `CollectionView` is set to `null` or an empty array, an instance of this view + will be the `CollectionView`s only child. + + ```javascript + aListWithNothing = Ember.CollectionView.create({ + classNames: ['nothing'] + content: null, + emptyView: Ember.View.extend({ + template: Ember.Handlebars.compile("The collection is empty") + }) + }); + + aListWithNothing.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
    +
    + The collection is empty +
    +
    + ``` + + ## Adding and Removing items + + The `childViews` property of a `CollectionView` should not be directly + manipulated. Instead, add, remove, replace items from its `content` property. + This will trigger appropriate changes to its rendered HTML. + + + @class CollectionView + @namespace Ember + @extends Ember.ContainerView + @since Ember 0.9 + */ + var CollectionView = ContainerView.extend({ + + /** + A list of items to be displayed by the `Ember.CollectionView`. + + @property content + @type Ember.Array + @default null + */ + content: null, + + /** + This provides metadata about what kind of empty view class this + collection would like if it is being instantiated from another + system (like Handlebars) + + @private + @property emptyViewClass + */ + emptyViewClass: View, + + /** + An optional view to display if content is set to an empty array. + + @property emptyView + @type Ember.View + @default null + */ + emptyView: null, + + /** + @property itemViewClass + @type Ember.View + @default Ember.View + */ + itemViewClass: View, + + /** + Setup a CollectionView + + @method init + */ + init: function() { + var ret = this._super(); + this._contentDidChange(); + return ret; + }, + + /** + Invoked when the content property is about to change. Notifies observers that the + entire array content will change. + + @private + @method _contentWillChange + */ + _contentWillChange: beforeObserver('content', function() { + var content = this.get('content'); + + if (content) { content.removeArrayObserver(this); } + var len = content ? get(content, 'length') : 0; + this.arrayWillChange(content, 0, len); + }), + + /** + Check to make sure that the content has changed, and if so, + update the children directly. This is always scheduled + asynchronously, to allow the element to be created before + bindings have synchronized and vice versa. + + @private + @method _contentDidChange + */ + _contentDidChange: observer('content', function() { + var content = get(this, 'content'); + + if (content) { + this._assertArrayLike(content); + content.addArrayObserver(this); + } + + var len = content ? get(content, 'length') : 0; + this.arrayDidChange(content, 0, null, len); + }), + + /** + Ensure that the content implements Ember.Array + + @private + @method _assertArrayLike + */ + _assertArrayLike: function(content) { + Ember.assert(fmt("an Ember.CollectionView's content must implement Ember.Array. You passed %@", [content]), EmberArray.detect(content)); + }, + + /** + Removes the content and content observers. + + @method destroy + */ + destroy: function() { + if (!this._super()) { return; } + + var content = get(this, 'content'); + if (content) { content.removeArrayObserver(this); } + + if (this._createdEmptyView) { + this._createdEmptyView.destroy(); + } + + return this; + }, + + /** + Called when a mutation to the underlying content array will occur. + + This method will remove any views that are no longer in the underlying + content array. + + Invokes whenever the content array itself will change. + + @method arrayWillChange + @param {Array} content the managed collection of objects + @param {Number} start the index at which the changes will occurr + @param {Number} removed number of object to be removed from content + */ + arrayWillChange: function(content, start, removedCount) { + // If the contents were empty before and this template collection has an + // empty view remove it now. + var emptyView = get(this, 'emptyView'); + if (emptyView && emptyView instanceof View) { + emptyView.removeFromParent(); + } + + // Loop through child views that correspond with the removed items. + // Note that we loop from the end of the array to the beginning because + // we are mutating it as we go. + var childViews = this._childViews, childView, idx, len; + + len = this._childViews.length; + + var removingAll = removedCount === len; + + if (removingAll) { + this.currentState.empty(this); + this.invokeRecursively(function(view) { + view.removedFromDOM = true; + }, false); + } + + for (idx = start + removedCount - 1; idx >= start; idx--) { + childView = childViews[idx]; + childView.destroy(); + } + }, + + /** + Called when a mutation to the underlying content array occurs. + + This method will replay that mutation against the views that compose the + `Ember.CollectionView`, ensuring that the view reflects the model. + + This array observer is added in `contentDidChange`. + + @method arrayDidChange + @param {Array} content the managed collection of objects + @param {Number} start the index at which the changes occurred + @param {Number} removed number of object removed from content + @param {Number} added number of object added to content + */ + arrayDidChange: function(content, start, removed, added) { + var addedViews = [], view, item, idx, len, itemViewClass, + emptyView; + + len = content ? get(content, 'length') : 0; + + if (len) { + itemViewClass = get(this, 'itemViewClass'); + + if ('string' === typeof itemViewClass) { + itemViewClass = get(itemViewClass) || itemViewClass; + } + + Ember.assert(fmt("itemViewClass must be a subclass of Ember.View, not %@", + [itemViewClass]), + 'string' === typeof itemViewClass || View.detect(itemViewClass)); + + for (idx = start; idx < start+added; idx++) { + item = content.objectAt(idx); + + view = this.createChildView(itemViewClass, { + content: item, + contentIndex: idx + }); + + addedViews.push(view); + } + } else { + emptyView = get(this, 'emptyView'); + + if (!emptyView) { return; } + + if ('string' === typeof emptyView) { + emptyView = get(emptyView) || emptyView; + } + + emptyView = this.createChildView(emptyView); + addedViews.push(emptyView); + set(this, 'emptyView', emptyView); + + if (CoreView.detect(emptyView)) { + this._createdEmptyView = emptyView; + } + } + + this.replace(start, 0, addedViews); + }, + + /** + Instantiates a view to be added to the childViews array during view + initialization. You generally will not call this method directly unless + you are overriding `createChildViews()`. Note that this method will + automatically configure the correct settings on the new view instance to + act as a child of the parent. + + The tag name for the view will be set to the tagName of the viewClass + passed in. + + @method createChildView + @param {Class} viewClass + @param {Hash} [attrs] Attributes to add + @return {Ember.View} new instance + */ + createChildView: function(view, attrs) { + view = this._super(view, attrs); + + var itemTagName = get(view, 'tagName'); + + if (itemTagName === null || itemTagName === undefined) { + itemTagName = CollectionView.CONTAINER_MAP[get(this, 'tagName')]; + set(view, 'tagName', itemTagName); + } + + return view; + } + }); + + /** + A map of parent tags to their default child tags. You can add + additional parent tags if you want collection views that use + a particular parent tag to default to a child tag. + + @property CONTAINER_MAP + @type Hash + @static + @final + */ + CollectionView.CONTAINER_MAP = { + ul: 'li', + ol: 'li', + table: 'tr', + thead: 'tr', + tbody: 'tr', + tfoot: 'tr', + tr: 'td', + select: 'option' + }; + + __exports__["default"] = CollectionView; + }); +define("ember-views/views/component", + ["ember-metal/core","ember-views/mixins/component_template_deprecation","ember-runtime/mixins/target_action_support","ember-views/views/view","ember-metal/property_get","ember-metal/property_set","ember-metal/is_none","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.Handlebars + + var ComponentTemplateDeprecation = __dependency2__["default"]; + var TargetActionSupport = __dependency3__["default"]; + var View = __dependency4__.View;var get = __dependency5__.get; + var set = __dependency6__.set; + var isNone = __dependency7__.isNone; + + var computed = __dependency8__.computed; + + var a_slice = Array.prototype.slice; + + /** + @module ember + @submodule ember-views + */ + + /** + An `Ember.Component` is a view that is completely + isolated. Property access in its templates go + to the view object and actions are targeted at + the view object. There is no access to the + surrounding context or outer controller; all + contextual information must be passed in. + + The easiest way to create an `Ember.Component` is via + a template. If you name a template + `components/my-foo`, you will be able to use + `{{my-foo}}` in other templates, which will make + an instance of the isolated component. + + ```handlebars + {{app-profile person=currentUser}} + ``` + + ```handlebars + +

    {{person.title}}

    + +

    {{person.signature}}

    + ``` + + You can use `yield` inside a template to + include the **contents** of any block attached to + the component. The block will be executed in the + context of the surrounding context or outer controller: + + ```handlebars + {{#app-profile person=currentUser}} +

    Admin mode

    + {{! Executed in the controller's context. }} + {{/app-profile}} + ``` + + ```handlebars + +

    {{person.title}}

    + {{! Executed in the components context. }} + {{yield}} {{! block contents }} + ``` + + If you want to customize the component, in order to + handle events or actions, you implement a subclass + of `Ember.Component` named after the name of the + component. Note that `Component` needs to be appended to the name of + your subclass like `AppProfileComponent`. + + For example, you could implement the action + `hello` for the `app-profile` component: + + ```javascript + App.AppProfileComponent = Ember.Component.extend({ + actions: { + hello: function(name) { + console.log("Hello", name); + } + } + }); + ``` + + And then use it in the component's template: + + ```handlebars + + +

    {{person.title}}

    + {{yield}} + + + ``` + + Components must have a `-` in their name to avoid + conflicts with built-in controls that wrap HTML + elements. This is consistent with the same + requirement in web components. + + @class Component + @namespace Ember + @extends Ember.View + */ + var Component = View.extend(TargetActionSupport, ComponentTemplateDeprecation, { + init: function() { + this._super(); + set(this, 'context', this); + set(this, 'controller', this); + }, + + defaultLayout: function(context, options){ + Ember.Handlebars.helpers['yield'].call(context, options); + }, + + /** + A components template property is set by passing a block + during its invocation. It is executed within the parent context. + + Example: + + ```handlebars + {{#my-component}} + // something that is run in the context + // of the parent context + {{/my-component}} + ``` + + Specifying a template directly to a component is deprecated without + also specifying the layout property. + + @deprecated + @property template + */ + template: computed(function(key, value) { + if (value !== undefined) { return value; } + + var templateName = get(this, 'templateName'), + template = this.templateForName(templateName, 'template'); + + Ember.assert("You specified the templateName " + templateName + " for " + this + ", but it did not exist.", !templateName || template); + + return template || get(this, 'defaultTemplate'); + }).property('templateName'), + + /** + Specifying a components `templateName` is deprecated without also + providing the `layout` or `layoutName` properties. + + @deprecated + @property templateName + */ + templateName: null, + + // during render, isolate keywords + cloneKeywords: function() { + return { + view: this, + controller: this + }; + }, + + _yield: function(context, options) { + var view = options.data.view, + parentView = this._parentView, + template = get(this, 'template'); + + if (template) { + Ember.assert("A Component must have a parent view in order to yield.", parentView); + + view.appendChild(View, { + isVirtual: true, + tagName: '', + _contextView: parentView, + template: template, + context: get(parentView, 'context'), + controller: get(parentView, 'controller'), + templateData: { keywords: parentView.cloneKeywords() } + }); + } + }, + + /** + If the component is currently inserted into the DOM of a parent view, this + property will point to the controller of the parent view. + + @property targetObject + @type Ember.Controller + @default null + */ + targetObject: computed(function(key) { + var parentView = get(this, '_parentView'); + return parentView ? get(parentView, 'controller') : null; + }).property('_parentView'), + + /** + Triggers a named action on the controller context where the component is used if + this controller has registered for notifications of the action. + + For example a component for playing or pausing music may translate click events + into action notifications of "play" or "stop" depending on some internal state + of the component: + + + ```javascript + App.PlayButtonComponent = Ember.Component.extend({ + click: function(){ + if (this.get('isPlaying')) { + this.sendAction('play'); + } else { + this.sendAction('stop'); + } + } + }); + ``` + + When used inside a template these component actions are configured to + trigger actions in the outer application context: + + ```handlebars + {{! application.hbs }} + {{play-button play="musicStarted" stop="musicStopped"}} + ``` + + When the component receives a browser `click` event it translate this + interaction into application-specific semantics ("play" or "stop") and + triggers the specified action name on the controller for the template + where the component is used: + + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + actions: { + musicStarted: function(){ + // called when the play button is clicked + // and the music started playing + }, + musicStopped: function(){ + // called when the play button is clicked + // and the music stopped playing + } + } + }); + ``` + + If no action name is passed to `sendAction` a default name of "action" + is assumed. + + ```javascript + App.NextButtonComponent = Ember.Component.extend({ + click: function(){ + this.sendAction(); + } + }); + ``` + + ```handlebars + {{! application.hbs }} + {{next-button action="playNextSongInAlbum"}} + ``` + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + actions: { + playNextSongInAlbum: function(){ + ... + } + } + }); + ``` + + @method sendAction + @param [action] {String} the action to trigger + @param [context] {*} a context to send with the action + */ + sendAction: function(action) { + var actionName, + contexts = a_slice.call(arguments, 1); + + // Send the default action + if (action === undefined) { + actionName = get(this, 'action'); + Ember.assert("The default action was triggered on the component " + this.toString() + + ", but the action name (" + actionName + ") was not a string.", + isNone(actionName) || typeof actionName === 'string'); + } else { + actionName = get(this, action); + Ember.assert("The " + action + " action was triggered on the component " + + this.toString() + ", but the action name (" + actionName + + ") was not a string.", + isNone(actionName) || typeof actionName === 'string'); + } + + // If no action name for that action could be found, just abort. + if (actionName === undefined) { return; } + + this.triggerAction({ + action: actionName, + actionContext: contexts + }); + } + }); + + __exports__["default"] = Component; + }); +define("ember-views/views/container_view", + ["ember-metal/core","ember-metal/merge","ember-runtime/mixins/mutable_array","ember-metal/property_get","ember-metal/property_set","ember-views/views/view","ember-views/views/states","ember-metal/error","ember-metal/enumerable_utils","ember-metal/computed","ember-metal/run_loop","ember-metal/properties","ember-views/system/render_buffer","ember-metal/mixin","ember-runtime/system/native_array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.K + + var merge = __dependency2__["default"]; + var MutableArray = __dependency3__["default"]; + var get = __dependency4__.get; + var set = __dependency5__.set; + + var View = __dependency6__.View; + var ViewCollection = __dependency6__.ViewCollection; + var cloneStates = __dependency7__.cloneStates; + var EmberViewStates = __dependency7__.states; + + var EmberError = __dependency8__["default"]; + + // ES6TODO: functions on EnumerableUtils should get their own export + var EnumerableUtils = __dependency9__["default"]; + var forEach = EnumerableUtils.forEach; + + var computed = __dependency10__.computed; + var run = __dependency11__["default"]; + var defineProperty = __dependency12__.defineProperty; + var RenderBuffer = __dependency13__["default"]; + var observer = __dependency14__.observer; + var beforeObserver = __dependency14__.beforeObserver; + var A = __dependency15__.A; + + /** + @module ember + @submodule ember-views + */ + + var states = cloneStates(EmberViewStates); + + /** + A `ContainerView` is an `Ember.View` subclass that implements `Ember.MutableArray` + allowing programmatic management of its child views. + + ## Setting Initial Child Views + + The initial array of child views can be set in one of two ways. You can + provide a `childViews` property at creation time that contains instance of + `Ember.View`: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: [Ember.View.create(), Ember.View.create()] + }); + ``` + + You can also provide a list of property names whose values are instances of + `Ember.View`: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: ['aView', 'bView', 'cView'], + aView: Ember.View.create(), + bView: Ember.View.create(), + cView: Ember.View.create() + }); + ``` + + The two strategies can be combined: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: ['aView', Ember.View.create()], + aView: Ember.View.create() + }); + ``` + + Each child view's rendering will be inserted into the container's rendered + HTML in the same order as its position in the `childViews` property. + + ## Adding and Removing Child Views + + The container view implements `Ember.MutableArray` allowing programmatic management of its child views. + + To remove a view, pass that view into a `removeObject` call on the container view. + + Given an empty `` the following code + + ```javascript + aContainer = Ember.ContainerView.create({ + classNames: ['the-container'], + childViews: ['aView', 'bView'], + aView: Ember.View.create({ + template: Ember.Handlebars.compile("A") + }), + bView: Ember.View.create({ + template: Ember.Handlebars.compile("B") + }) + }); + + aContainer.appendTo('body'); + ``` + + Results in the HTML + + ```html +
    +
    A
    +
    B
    +
    + ``` + + Removing a view + + ```javascript + aContainer.toArray(); // [aContainer.aView, aContainer.bView] + aContainer.removeObject(aContainer.get('bView')); + aContainer.toArray(); // [aContainer.aView] + ``` + + Will result in the following HTML + + ```html +
    +
    A
    +
    + ``` + + Similarly, adding a child view is accomplished by adding `Ember.View` instances to the + container view. + + Given an empty `` the following code + + ```javascript + aContainer = Ember.ContainerView.create({ + classNames: ['the-container'], + childViews: ['aView', 'bView'], + aView: Ember.View.create({ + template: Ember.Handlebars.compile("A") + }), + bView: Ember.View.create({ + template: Ember.Handlebars.compile("B") + }) + }); + + aContainer.appendTo('body'); + ``` + + Results in the HTML + + ```html +
    +
    A
    +
    B
    +
    + ``` + + Adding a view + + ```javascript + AnotherViewClass = Ember.View.extend({ + template: Ember.Handlebars.compile("Another view") + }); + + aContainer.toArray(); // [aContainer.aView, aContainer.bView] + aContainer.pushObject(AnotherViewClass.create()); + aContainer.toArray(); // [aContainer.aView, aContainer.bView, ] + ``` + + Will result in the following HTML + + ```html +
    +
    A
    +
    B
    +
    Another view
    +
    + ``` + + ## Templates and Layout + + A `template`, `templateName`, `defaultTemplate`, `layout`, `layoutName` or + `defaultLayout` property on a container view will not result in the template + or layout being rendered. The HTML contents of a `Ember.ContainerView`'s DOM + representation will only be the rendered HTML of its child views. + + @class ContainerView + @namespace Ember + @extends Ember.View + */ + var ContainerView = View.extend(MutableArray, { + states: states, + + init: function() { + this._super(); + + var childViews = get(this, 'childViews'); + + // redefine view's childViews property that was obliterated + defineProperty(this, 'childViews', View.childViewsProperty); + + var _childViews = this._childViews; + + forEach(childViews, function(viewName, idx) { + var view; + + if ('string' === typeof viewName) { + view = get(this, viewName); + view = this.createChildView(view); + set(this, viewName, view); + } else { + view = this.createChildView(viewName); + } + + _childViews[idx] = view; + }, this); + + var currentView = get(this, 'currentView'); + if (currentView) { + if (!_childViews.length) { _childViews = this._childViews = this._childViews.slice(); } + _childViews.push(this.createChildView(currentView)); + } + }, + + replace: function(idx, removedCount, addedViews) { + var addedCount = addedViews ? get(addedViews, 'length') : 0; + var self = this; + Ember.assert("You can't add a child to a container that is already a child of another view", A(addedViews).every(function(item) { return !get(item, '_parentView') || get(item, '_parentView') === self; })); + + this.arrayContentWillChange(idx, removedCount, addedCount); + this.childViewsWillChange(this._childViews, idx, removedCount); + + if (addedCount === 0) { + this._childViews.splice(idx, removedCount) ; + } else { + var args = [idx, removedCount].concat(addedViews); + if (addedViews.length && !this._childViews.length) { this._childViews = this._childViews.slice(); } + this._childViews.splice.apply(this._childViews, args); + } + + this.arrayContentDidChange(idx, removedCount, addedCount); + this.childViewsDidChange(this._childViews, idx, removedCount, addedCount); + + return this; + }, + + objectAt: function(idx) { + return this._childViews[idx]; + }, + + length: computed(function () { + return this._childViews.length; + }).volatile(), + + /** + Instructs each child view to render to the passed render buffer. + + @private + @method render + @param {Ember.RenderBuffer} buffer the buffer to render to + */ + render: function(buffer) { + this.forEachChildView(function(view) { + view.renderToBuffer(buffer); + }); + }, + + instrumentName: 'container', + + /** + When a child view is removed, destroy its element so that + it is removed from the DOM. + + The array observer that triggers this action is set up in the + `renderToBuffer` method. + + @private + @method childViewsWillChange + @param {Ember.Array} views the child views array before mutation + @param {Number} start the start position of the mutation + @param {Number} removed the number of child views removed + **/ + childViewsWillChange: function(views, start, removed) { + this.propertyWillChange('childViews'); + + if (removed > 0) { + var changedViews = views.slice(start, start+removed); + // transition to preRender before clearing parentView + this.currentState.childViewsWillChange(this, views, start, removed); + this.initializeViews(changedViews, null, null); + } + }, + + removeChild: function(child) { + this.removeObject(child); + return this; + }, + + /** + When a child view is added, make sure the DOM gets updated appropriately. + + If the view has already rendered an element, we tell the child view to + create an element and insert it into the DOM. If the enclosing container + view has already written to a buffer, but not yet converted that buffer + into an element, we insert the string representation of the child into the + appropriate place in the buffer. + + @private + @method childViewsDidChange + @param {Ember.Array} views the array of child views after the mutation has occurred + @param {Number} start the start position of the mutation + @param {Number} removed the number of child views removed + @param {Number} the number of child views added + */ + childViewsDidChange: function(views, start, removed, added) { + if (added > 0) { + var changedViews = views.slice(start, start+added); + this.initializeViews(changedViews, this, get(this, 'templateData')); + this.currentState.childViewsDidChange(this, views, start, added); + } + this.propertyDidChange('childViews'); + }, + + initializeViews: function(views, parentView, templateData) { + forEach(views, function(view) { + set(view, '_parentView', parentView); + + if (!view.container && parentView) { + set(view, 'container', parentView.container); + } + + if (!get(view, 'templateData')) { + set(view, 'templateData', templateData); + } + }); + }, + + currentView: null, + + _currentViewWillChange: beforeObserver('currentView', function() { + var currentView = get(this, 'currentView'); + if (currentView) { + currentView.destroy(); + } + }), + + _currentViewDidChange: observer('currentView', function() { + var currentView = get(this, 'currentView'); + if (currentView) { + Ember.assert("You tried to set a current view that already has a parent. Make sure you don't have multiple outlets in the same view.", !get(currentView, '_parentView')); + this.pushObject(currentView); + } + }), + + _ensureChildrenAreInDOM: function () { + this.currentState.ensureChildrenAreInDOM(this); + } + }); + + merge(states._default, { + childViewsWillChange: Ember.K, + childViewsDidChange: Ember.K, + ensureChildrenAreInDOM: Ember.K + }); + + merge(states.inBuffer, { + childViewsDidChange: function(parentView, views, start, added) { + throw new EmberError('You cannot modify child views while in the inBuffer state'); + } + }); + + merge(states.hasElement, { + childViewsWillChange: function(view, views, start, removed) { + for (var i=start; i + ``` + + ## HTML `class` Attribute + + The HTML `class` attribute of a view's tag can be set by providing a + `classNames` property that is set to an array of strings: + + ```javascript + MyView = Ember.View.extend({ + classNames: ['my-class', 'my-other-class'] + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + `class` attribute values can also be set by providing a `classNameBindings` + property set to an array of properties names for the view. The return value + of these properties will be added as part of the value for the view's `class` + attribute. These properties can be computed properties: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['propertyA', 'propertyB'], + propertyA: 'from-a', + propertyB: function() { + if (someLogic) { return 'from-b'; } + }.property() + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + If the value of a class name binding returns a boolean the property name + itself will be used as the class name if the property is true. The class name + will not be added if the value is `false` or `undefined`. + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['hovered'], + hovered: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When using boolean class name bindings you can supply a string value other + than the property name for use as the `class` HTML attribute by appending the + preferred value after a ":" character when defining the binding: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['awesome:so-very-cool'], + awesome: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + Boolean value class name bindings whose property names are in a + camelCase-style format will be converted to a dasherized format: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['isUrgent'], + isUrgent: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + Class name bindings can also refer to object values that are found by + traversing a path relative to the view itself: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['messages.empty'] + messages: Ember.Object.create({ + empty: true + }) + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + If you want to add a class name for a property which evaluates to true and + and a different class name if it evaluates to false, you can pass a binding + like this: + + ```javascript + // Applies 'enabled' class when isEnabled is true and 'disabled' when isEnabled is false + Ember.View.extend({ + classNameBindings: ['isEnabled:enabled:disabled'] + isEnabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When isEnabled is `false`, the resulting HTML reprensentation looks like + this: + + ```html +
    + ``` + + This syntax offers the convenience to add a class if a property is `false`: + + ```javascript + // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false + Ember.View.extend({ + classNameBindings: ['isEnabled::disabled'] + isEnabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When the `isEnabled` property on the view is set to `false`, it will result + in view instances with an HTML representation of: + + ```html +
    + ``` + + Updates to the the value of a class name binding will result in automatic + update of the HTML `class` attribute in the view's rendered HTML + representation. If the value becomes `false` or `undefined` the class name + will be removed. + + Both `classNames` and `classNameBindings` are concatenated properties. See + [Ember.Object](/api/classes/Ember.Object.html) documentation for more + information about concatenated properties. + + ## HTML Attributes + + The HTML attribute section of a view's tag can be set by providing an + `attributeBindings` property set to an array of property names on the view. + The return value of these properties will be used as the value of the view's + HTML associated attribute: + + ```javascript + AnchorView = Ember.View.extend({ + tagName: 'a', + attributeBindings: ['href'], + href: 'http://google.com' + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html + + ``` + + If the return value of an `attributeBindings` monitored property is a boolean + the property will follow HTML's pattern of repeating the attribute's name as + its value: + + ```javascript + MyTextInput = Ember.View.extend({ + tagName: 'input', + attributeBindings: ['disabled'], + disabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html + + ``` + + `attributeBindings` can refer to computed properties: + + ```javascript + MyTextInput = Ember.View.extend({ + tagName: 'input', + attributeBindings: ['disabled'], + disabled: function() { + if (someLogic) { + return true; + } else { + return false; + } + }.property() + }); + ``` + + Updates to the the property of an attribute binding will result in automatic + update of the HTML attribute in the view's rendered HTML representation. + + `attributeBindings` is a concatenated property. See [Ember.Object](/api/classes/Ember.Object.html) + documentation for more information about concatenated properties. + + ## Templates + + The HTML contents of a view's rendered representation are determined by its + template. Templates can be any function that accepts an optional context + parameter and returns a string of HTML that will be inserted within the + view's tag. Most typically in Ember this function will be a compiled + `Ember.Handlebars` template. + + ```javascript + AView = Ember.View.extend({ + template: Ember.Handlebars.compile('I am the template') + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    I am the template
    + ``` + + Within an Ember application is more common to define a Handlebars templates as + part of a page: + + ```html + + ``` + + And associate it by name using a view's `templateName` property: + + ```javascript + AView = Ember.View.extend({ + templateName: 'some-template' + }); + ``` + + If you have nested resources, your Handlebars template will look like this: + + ```html + + ``` + + And `templateName` property: + + ```javascript + AView = Ember.View.extend({ + templateName: 'posts/new' + }); + ``` + + Using a value for `templateName` that does not have a Handlebars template + with a matching `data-template-name` attribute will throw an error. + + For views classes that may have a template later defined (e.g. as the block + portion of a `{{view}}` Handlebars helper call in another template or in + a subclass), you can provide a `defaultTemplate` property set to compiled + template function. If a template is not later provided for the view instance + the `defaultTemplate` value will be used: + + ```javascript + AView = Ember.View.extend({ + defaultTemplate: Ember.Handlebars.compile('I was the default'), + template: null, + templateName: null + }); + ``` + + Will result in instances with an HTML representation of: + + ```html +
    I was the default
    + ``` + + If a `template` or `templateName` is provided it will take precedence over + `defaultTemplate`: + + ```javascript + AView = Ember.View.extend({ + defaultTemplate: Ember.Handlebars.compile('I was the default') + }); + + aView = AView.create({ + template: Ember.Handlebars.compile('I was the template, not default') + }); + ``` + + Will result in the following HTML representation when rendered: + + ```html +
    I was the template, not default
    + ``` + + ## View Context + + The default context of the compiled template is the view's controller: + + ```javascript + AView = Ember.View.extend({ + template: Ember.Handlebars.compile('Hello {{excitedGreeting}}') + }); + + aController = Ember.Object.create({ + firstName: 'Barry', + excitedGreeting: function() { + return this.get("content.firstName") + "!!!" + }.property() + }); + + aView = AView.create({ + controller: aController, + }); + ``` + + Will result in an HTML representation of: + + ```html +
    Hello Barry!!!
    + ``` + + A context can also be explicitly supplied through the view's `context` + property. If the view has neither `context` nor `controller` properties, the + `parentView`'s context will be used. + + ## Layouts + + Views can have a secondary template that wraps their main template. Like + primary templates, layouts can be any function that accepts an optional + context parameter and returns a string of HTML that will be inserted inside + view's tag. Views whose HTML element is self closing (e.g. ``) + cannot have a layout and this property will be ignored. + + Most typically in Ember a layout will be a compiled `Ember.Handlebars` + template. + + A view's layout can be set directly with the `layout` property or reference + an existing Handlebars template by name with the `layoutName` property. + + A template used as a layout must contain a single use of the Handlebars + `{{yield}}` helper. The HTML contents of a view's rendered `template` will be + inserted at this location: + + ```javascript + AViewWithLayout = Ember.View.extend({ + layout: Ember.Handlebars.compile("
    {{yield}}
    ") + template: Ember.Handlebars.compile("I got wrapped"), + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    +
    + I got wrapped +
    +
    + ``` + + See [Ember.Handlebars.helpers.yield](/api/classes/Ember.Handlebars.helpers.html#method_yield) + for more information. + + ## Responding to Browser Events + + Views can respond to user-initiated events in one of three ways: method + implementation, through an event manager, and through `{{action}}` helper use + in their template or layout. + + ### Method Implementation + + Views can respond to user-initiated events by implementing a method that + matches the event name. A `jQuery.Event` object will be passed as the + argument to this method. + + ```javascript + AView = Ember.View.extend({ + click: function(event) { + // will be called when when an instance's + // rendered element is clicked + } + }); + ``` + + ### Event Managers + + Views can define an object as their `eventManager` property. This object can + then implement methods that match the desired event names. Matching events + that occur on the view's rendered HTML or the rendered HTML of any of its DOM + descendants will trigger this method. A `jQuery.Event` object will be passed + as the first argument to the method and an `Ember.View` object as the + second. The `Ember.View` will be the view whose rendered HTML was interacted + with. This may be the view with the `eventManager` property or one of its + descendent views. + + ```javascript + AView = Ember.View.extend({ + eventManager: Ember.Object.create({ + doubleClick: function(event, view) { + // will be called when when an instance's + // rendered element or any rendering + // of this views's descendent + // elements is clicked + } + }) + }); + ``` + + An event defined for an event manager takes precedence over events of the + same name handled through methods on the view. + + ```javascript + AView = Ember.View.extend({ + mouseEnter: function(event) { + // will never trigger. + }, + eventManager: Ember.Object.create({ + mouseEnter: function(event, view) { + // takes precedence over AView#mouseEnter + } + }) + }); + ``` + + Similarly a view's event manager will take precedence for events of any views + rendered as a descendent. A method name that matches an event name will not + be called if the view instance was rendered inside the HTML representation of + a view that has an `eventManager` property defined that handles events of the + name. Events not handled by the event manager will still trigger method calls + on the descendent. + + ```javascript + OuterView = Ember.View.extend({ + template: Ember.Handlebars.compile("outer {{#view InnerView}}inner{{/view}} outer"), + eventManager: Ember.Object.create({ + mouseEnter: function(event, view) { + // view might be instance of either + // OuterView or InnerView depending on + // where on the page the user interaction occured + } + }) + }); + + InnerView = Ember.View.extend({ + click: function(event) { + // will be called if rendered inside + // an OuterView because OuterView's + // eventManager doesn't handle click events + }, + mouseEnter: function(event) { + // will never be called if rendered inside + // an OuterView. + } + }); + ``` + + ### Handlebars `{{action}}` Helper + + See [Handlebars.helpers.action](/api/classes/Ember.Handlebars.helpers.html#method_action). + + ### Event Names + + All of the event handling approaches described above respond to the same set + of events. The names of the built-in events are listed below. (The hash of + built-in events exists in `Ember.EventDispatcher`.) Additional, custom events + can be registered by using `Ember.Application.customEvents`. + + Touch events: + + * `touchStart` + * `touchMove` + * `touchEnd` + * `touchCancel` + + Keyboard events + + * `keyDown` + * `keyUp` + * `keyPress` + + Mouse events + + * `mouseDown` + * `mouseUp` + * `contextMenu` + * `click` + * `doubleClick` + * `mouseMove` + * `focusIn` + * `focusOut` + * `mouseEnter` + * `mouseLeave` + + Form events: + + * `submit` + * `change` + * `focusIn` + * `focusOut` + * `input` + + HTML5 drag and drop events: + + * `dragStart` + * `drag` + * `dragEnter` + * `dragLeave` + * `dragOver` + * `dragEnd` + * `drop` + + ## Handlebars `{{view}}` Helper + + Other `Ember.View` instances can be included as part of a view's template by + using the `{{view}}` Handlebars helper. See [Ember.Handlebars.helpers.view](/api/classes/Ember.Handlebars.helpers.html#method_view) + for additional information. + + @class View + @namespace Ember + @extends Ember.CoreView + */ + var View = CoreView.extend({ + + concatenatedProperties: ['classNames', 'classNameBindings', 'attributeBindings'], + + /** + @property isView + @type Boolean + @default true + @static + */ + isView: true, + + // .......................................................... + // TEMPLATE SUPPORT + // + + /** + The name of the template to lookup if no template is provided. + + By default `Ember.View` will lookup a template with this name in + `Ember.TEMPLATES` (a shared global object). + + @property templateName + @type String + @default null + */ + templateName: null, + + /** + The name of the layout to lookup if no layout is provided. + + By default `Ember.View` will lookup a template with this name in + `Ember.TEMPLATES` (a shared global object). + + @property layoutName + @type String + @default null + */ + layoutName: null, + + /** + The template used to render the view. This should be a function that + accepts an optional context parameter and returns a string of HTML that + will be inserted into the DOM relative to its parent view. + + In general, you should set the `templateName` property instead of setting + the template yourself. + + @property template + @type Function + */ + template: computed('templateName', function(key, value) { + if (value !== undefined) { return value; } + + var templateName = get(this, 'templateName'), + template = this.templateForName(templateName, 'template'); + + Ember.assert("You specified the templateName " + templateName + " for " + this + ", but it did not exist.", !templateName || template); + + return template || get(this, 'defaultTemplate'); + }), + + /** + The controller managing this view. If this property is set, it will be + made available for use by the template. + + @property controller + @type Object + */ + controller: computed('_parentView', function(key) { + var parentView = get(this, '_parentView'); + return parentView ? get(parentView, 'controller') : null; + }), + + /** + A view may contain a layout. A layout is a regular template but + supersedes the `template` property during rendering. It is the + responsibility of the layout template to retrieve the `template` + property from the view (or alternatively, call `Handlebars.helpers.yield`, + `{{yield}}`) to render it in the correct location. + + This is useful for a view that has a shared wrapper, but which delegates + the rendering of the contents of the wrapper to the `template` property + on a subclass. + + @property layout + @type Function + */ + layout: computed(function(key) { + var layoutName = get(this, 'layoutName'), + layout = this.templateForName(layoutName, 'layout'); + + Ember.assert("You specified the layoutName " + layoutName + " for " + this + ", but it did not exist.", !layoutName || layout); + + return layout || get(this, 'defaultLayout'); + }).property('layoutName'), + + _yield: function(context, options) { + var template = get(this, 'template'); + if (template) { template(context, options); } + }, + + templateForName: function(name, type) { + if (!name) { return; } + Ember.assert("templateNames are not allowed to contain periods: "+name, name.indexOf('.') === -1); + + // the defaultContainer is deprecated + var container = this.container || (Container && Container.defaultContainer); + return container && container.lookup('template:' + name); + }, + + /** + The object from which templates should access properties. + + This object will be passed to the template function each time the render + method is called, but it is up to the individual function to decide what + to do with it. + + By default, this will be the view's controller. + + @property context + @type Object + */ + context: computed(function(key, value) { + if (arguments.length === 2) { + set(this, '_context', value); + return value; + } else { + return get(this, '_context'); + } + }).volatile(), + + /** + Private copy of the view's template context. This can be set directly + by Handlebars without triggering the observer that causes the view + to be re-rendered. + + The context of a view is looked up as follows: + + 1. Supplied context (usually by Handlebars) + 2. Specified controller + 3. `parentView`'s context (for a child of a ContainerView) + + The code in Handlebars that overrides the `_context` property first + checks to see whether the view has a specified controller. This is + something of a hack and should be revisited. + + @property _context + @private + */ + _context: computed(function(key) { + var parentView, controller; + + if (controller = get(this, 'controller')) { + return controller; + } + + parentView = this._parentView; + if (parentView) { + return get(parentView, '_context'); + } + + return null; + }), + + /** + If a value that affects template rendering changes, the view should be + re-rendered to reflect the new value. + + @method _contextDidChange + @private + */ + _contextDidChange: observer('context', function() { + this.rerender(); + }), + + /** + If `false`, the view will appear hidden in DOM. + + @property isVisible + @type Boolean + @default null + */ + isVisible: true, + + /** + Array of child views. You should never edit this array directly. + Instead, use `appendChild` and `removeFromParent`. + + @property childViews + @type Array + @default [] + @private + */ + childViews: childViewsProperty, + + _childViews: EMPTY_ARRAY, + + // When it's a virtual view, we need to notify the parent that their + // childViews will change. + _childViewsWillChange: beforeObserver('childViews', function() { + if (this.isVirtual) { + var parentView = get(this, 'parentView'); + if (parentView) { propertyWillChange(parentView, 'childViews'); } + } + }), + + // When it's a virtual view, we need to notify the parent that their + // childViews did change. + _childViewsDidChange: observer('childViews', function() { + if (this.isVirtual) { + var parentView = get(this, 'parentView'); + if (parentView) { propertyDidChange(parentView, 'childViews'); } + } + }), + + /** + Return the nearest ancestor that is an instance of the provided + class. + + @method nearestInstanceOf + @param {Class} klass Subclass of Ember.View (or Ember.View itself) + @return Ember.View + @deprecated + */ + nearestInstanceOf: function(klass) { + Ember.deprecate("nearestInstanceOf is deprecated and will be removed from future releases. Use nearestOfType."); + var view = get(this, 'parentView'); + + while (view) { + if (view instanceof klass) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor that is an instance of the provided + class or mixin. + + @method nearestOfType + @param {Class,Mixin} klass Subclass of Ember.View (or Ember.View itself), + or an instance of Ember.Mixin. + @return Ember.View + */ + nearestOfType: function(klass) { + var view = get(this, 'parentView'), + isOfType = klass instanceof Mixin ? + function(view) { return klass.detect(view); } : + function(view) { return klass.detect(view.constructor); }; + + while (view) { + if (isOfType(view)) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor that has a given property. + + @function nearestWithProperty + @param {String} property A property name + @return Ember.View + */ + nearestWithProperty: function(property) { + var view = get(this, 'parentView'); + + while (view) { + if (property in view) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor whose parent is an instance of + `klass`. + + @method nearestChildOf + @param {Class} klass Subclass of Ember.View (or Ember.View itself) + @return Ember.View + */ + nearestChildOf: function(klass) { + var view = get(this, 'parentView'); + + while (view) { + if (get(view, 'parentView') instanceof klass) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + When the parent view changes, recursively invalidate `controller` + + @method _parentViewDidChange + @private + */ + _parentViewDidChange: observer('_parentView', function() { + if (this.isDestroying) { return; } + + this.trigger('parentViewDidChange'); + + if (get(this, 'parentView.controller') && !get(this, 'controller')) { + this.notifyPropertyChange('controller'); + } + }), + + _controllerDidChange: observer('controller', function() { + if (this.isDestroying) { return; } + + this.rerender(); + + this.forEachChildView(function(view) { + view.propertyDidChange('controller'); + }); + }), + + cloneKeywords: function() { + var templateData = get(this, 'templateData'); + + var keywords = templateData ? copy(templateData.keywords) : {}; + set(keywords, 'view', get(this, 'concreteView')); + set(keywords, '_view', this); + set(keywords, 'controller', get(this, 'controller')); + + return keywords; + }, + + /** + Called on your view when it should push strings of HTML into a + `Ember.RenderBuffer`. Most users will want to override the `template` + or `templateName` properties instead of this method. + + By default, `Ember.View` will look for a function in the `template` + property and invoke it with the value of `context`. The value of + `context` will be the view's controller unless you override it. + + @method render + @param {Ember.RenderBuffer} buffer The render buffer + */ + render: function(buffer) { + // If this view has a layout, it is the responsibility of the + // the layout to render the view's template. Otherwise, render the template + // directly. + var template = get(this, 'layout') || get(this, 'template'); + + if (template) { + var context = get(this, 'context'); + var keywords = this.cloneKeywords(); + var output; + + var data = { + view: this, + buffer: buffer, + isRenderData: true, + keywords: keywords, + insideGroup: get(this, 'templateData.insideGroup') + }; + + // Invoke the template with the provided template context, which + // is the view's controller by default. A hash of data is also passed that provides + // the template with access to the view and render buffer. + + Ember.assert('template must be a function. Did you mean to call Ember.Handlebars.compile("...") or specify templateName instead?', typeof template === 'function'); + // The template should write directly to the render buffer instead + // of returning a string. + output = template(context, { data: data }); + + // If the template returned a string instead of writing to the buffer, + // push the string onto the buffer. + if (output !== undefined) { buffer.push(output); } + } + }, + + /** + Renders the view again. This will work regardless of whether the + view is already in the DOM or not. If the view is in the DOM, the + rendering process will be deferred to give bindings a chance + to synchronize. + + If children were added during the rendering process using `appendChild`, + `rerender` will remove them, because they will be added again + if needed by the next `render`. + + In general, if the display of your view changes, you should modify + the DOM element directly instead of manually calling `rerender`, which can + be slow. + + @method rerender + */ + rerender: function() { + return this.currentState.rerender(this); + }, + + clearRenderedChildren: function() { + var lengthBefore = this.lengthBeforeRender, + lengthAfter = this.lengthAfterRender; + + // If there were child views created during the last call to render(), + // remove them under the assumption that they will be re-created when + // we re-render. + + // VIEW-TODO: Unit test this path. + var childViews = this._childViews; + for (var i=lengthAfter-1; i>=lengthBefore; i--) { + if (childViews[i]) { childViews[i].destroy(); } + } + }, + + /** + Iterates over the view's `classNameBindings` array, inserts the value + of the specified property into the `classNames` array, then creates an + observer to update the view's element if the bound property ever changes + in the future. + + @method _applyClassNameBindings + @private + */ + _applyClassNameBindings: function(classBindings) { + var classNames = this.classNames, + elem, newClass, dasherizedClass; + + // Loop through all of the configured bindings. These will be either + // property names ('isUrgent') or property paths relative to the view + // ('content.isUrgent') + a_forEach(classBindings, function(binding) { + + Ember.assert("classNameBindings must not have spaces in them. Multiple class name bindings can be provided as elements of an array, e.g. ['foo', ':bar']", binding.indexOf(' ') === -1); + + // Variable in which the old class value is saved. The observer function + // closes over this variable, so it knows which string to remove when + // the property changes. + var oldClass; + // Extract just the property name from bindings like 'foo:bar' + var parsedPath = View._parsePropertyPath(binding); + + // Set up an observer on the context. If the property changes, toggle the + // class name. + var observer = function() { + // Get the current value of the property + newClass = this._classStringForProperty(binding); + elem = this.$(); + + // If we had previously added a class to the element, remove it. + if (oldClass) { + elem.removeClass(oldClass); + // Also remove from classNames so that if the view gets rerendered, + // the class doesn't get added back to the DOM. + classNames.removeObject(oldClass); + } + + // If necessary, add a new class. Make sure we keep track of it so + // it can be removed in the future. + if (newClass) { + elem.addClass(newClass); + oldClass = newClass; + } else { + oldClass = null; + } + }; + + // Get the class name for the property at its current value + dasherizedClass = this._classStringForProperty(binding); + + if (dasherizedClass) { + // Ensure that it gets into the classNames array + // so it is displayed when we render. + a_addObject(classNames, dasherizedClass); + + // Save a reference to the class name so we can remove it + // if the observer fires. Remember that this variable has + // been closed over by the observer. + oldClass = dasherizedClass; + } + + this.registerObserver(this, parsedPath.path, observer); + // Remove className so when the view is rerendered, + // the className is added based on binding reevaluation + this.one('willClearRender', function() { + if (oldClass) { + classNames.removeObject(oldClass); + oldClass = null; + } + }); + + }, this); + }, + + _unspecifiedAttributeBindings: null, + + /** + Iterates through the view's attribute bindings, sets up observers for each, + then applies the current value of the attributes to the passed render buffer. + + @method _applyAttributeBindings + @param {Ember.RenderBuffer} buffer + @private + */ + _applyAttributeBindings: function(buffer, attributeBindings) { + var attributeValue, + unspecifiedAttributeBindings = this._unspecifiedAttributeBindings = this._unspecifiedAttributeBindings || {}; + + a_forEach(attributeBindings, function(binding) { + var split = binding.split(':'), + property = split[0], + attributeName = split[1] || property; + + if (property in this) { + this._setupAttributeBindingObservation(property, attributeName); + + // Determine the current value and add it to the render buffer + // if necessary. + attributeValue = get(this, property); + View.applyAttributeBindings(buffer, attributeName, attributeValue); + } else { + unspecifiedAttributeBindings[property] = attributeName; + } + }, this); + + // Lazily setup setUnknownProperty after attributeBindings are initially applied + this.setUnknownProperty = this._setUnknownProperty; + }, + + _setupAttributeBindingObservation: function(property, attributeName) { + var attributeValue, elem; + + // Create an observer to add/remove/change the attribute if the + // JavaScript property changes. + var observer = function() { + elem = this.$(); + + attributeValue = get(this, property); + + View.applyAttributeBindings(elem, attributeName, attributeValue); + }; + + this.registerObserver(this, property, observer); + }, + + /** + We're using setUnknownProperty as a hook to setup attributeBinding observers for + properties that aren't defined on a view at initialization time. + + Note: setUnknownProperty will only be called once for each property. + + @method setUnknownProperty + @param key + @param value + @private + */ + setUnknownProperty: null, // Gets defined after initialization by _applyAttributeBindings + + _setUnknownProperty: function(key, value) { + var attributeName = this._unspecifiedAttributeBindings && this._unspecifiedAttributeBindings[key]; + if (attributeName) { + this._setupAttributeBindingObservation(key, attributeName); + } + + defineProperty(this, key); + return set(this, key, value); + }, + + /** + Given a property name, returns a dasherized version of that + property name if the property evaluates to a non-falsy value. + + For example, if the view has property `isUrgent` that evaluates to true, + passing `isUrgent` to this method will return `"is-urgent"`. + + @method _classStringForProperty + @param property + @private + */ + _classStringForProperty: function(property) { + var parsedPath = View._parsePropertyPath(property); + var path = parsedPath.path; + + var val = get(this, path); + if (val === undefined && isGlobalPath(path)) { + val = get(Ember.lookup, path); + } + + return View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName); + }, + + // .......................................................... + // ELEMENT SUPPORT + // + + /** + Returns the current DOM element for the view. + + @property element + @type DOMElement + */ + element: computed('_parentView', function(key, value) { + if (value !== undefined) { + return this.currentState.setElement(this, value); + } else { + return this.currentState.getElement(this); + } + }), + + /** + Returns a jQuery object for this view's element. If you pass in a selector + string, this method will return a jQuery object, using the current element + as its buffer. + + For example, calling `view.$('li')` will return a jQuery object containing + all of the `li` elements inside the DOM element of this view. + + @method $ + @param {String} [selector] a jQuery-compatible selector string + @return {jQuery} the jQuery object for the DOM node + */ + $: function(sel) { + return this.currentState.$(this, sel); + }, + + mutateChildViews: function(callback) { + var childViews = this._childViews, + idx = childViews.length, + view; + + while(--idx >= 0) { + view = childViews[idx]; + callback(this, view, idx); + } + + return this; + }, + + forEachChildView: function(callback) { + var childViews = this._childViews; + + if (!childViews) { return this; } + + var len = childViews.length, + view, idx; + + for (idx = 0; idx < len; idx++) { + view = childViews[idx]; + callback(view); + } + + return this; + }, + + /** + Appends the view's element to the specified parent element. + + If the view does not have an HTML representation yet, `createElement()` + will be called automatically. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the given element until all bindings have + finished synchronizing. + + This is not typically a function that you will need to call directly when + building your application. You might consider using `Ember.ContainerView` + instead. If you do need to use `appendTo`, be sure that the target element + you are providing is associated with an `Ember.Application` and does not + have an ancestor element that is associated with an Ember view. + + @method appendTo + @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object + @return {Ember.View} receiver + */ + appendTo: function(target) { + // Schedule the DOM element to be created and appended to the given + // element after bindings have synchronized. + this._insertElementLater(function() { + Ember.assert("You tried to append to (" + target + ") but that isn't in the DOM", jQuery(target).length > 0); + Ember.assert("You cannot append to an existing Ember.View. Consider using Ember.ContainerView instead.", !jQuery(target).is('.ember-view') && !jQuery(target).parents().is('.ember-view')); + this.$().appendTo(target); + }); + + return this; + }, + + /** + Replaces the content of the specified parent element with this view's + element. If the view does not have an HTML representation yet, + `createElement()` will be called automatically. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the given element until all bindings have + finished synchronizing + + @method replaceIn + @param {String|DOMElement|jQuery} target A selector, element, HTML string, or jQuery object + @return {Ember.View} received + */ + replaceIn: function(target) { + Ember.assert("You tried to replace in (" + target + ") but that isn't in the DOM", jQuery(target).length > 0); + Ember.assert("You cannot replace an existing Ember.View. Consider using Ember.ContainerView instead.", !jQuery(target).is('.ember-view') && !jQuery(target).parents().is('.ember-view')); + + this._insertElementLater(function() { + jQuery(target).empty(); + this.$().appendTo(target); + }); + + return this; + }, + + /** + Schedules a DOM operation to occur during the next render phase. This + ensures that all bindings have finished synchronizing before the view is + rendered. + + To use, pass a function that performs a DOM operation. + + Before your function is called, this view and all child views will receive + the `willInsertElement` event. After your function is invoked, this view + and all of its child views will receive the `didInsertElement` event. + + ```javascript + view._insertElementLater(function() { + this.createElement(); + this.$().appendTo('body'); + }); + ``` + + @method _insertElementLater + @param {Function} fn the function that inserts the element into the DOM + @private + */ + _insertElementLater: function(fn) { + this._scheduledInsert = run.scheduleOnce('render', this, '_insertElement', fn); + }, + + _insertElement: function (fn) { + this._scheduledInsert = null; + this.currentState.insertElement(this, fn); + }, + + /** + Appends the view's element to the document body. If the view does + not have an HTML representation yet, `createElement()` will be called + automatically. + + If your application uses the `rootElement` property, you must append + the view within that element. Rendering views outside of the `rootElement` + is not supported. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the document body until all bindings have + finished synchronizing. + + @method append + @return {Ember.View} receiver + */ + append: function() { + return this.appendTo(document.body); + }, + + /** + Removes the view's element from the element to which it is attached. + + @method remove + @return {Ember.View} receiver + */ + remove: function() { + // What we should really do here is wait until the end of the run loop + // to determine if the element has been re-appended to a different + // element. + // In the interim, we will just re-render if that happens. It is more + // important than elements get garbage collected. + if (!this.removedFromDOM) { this.destroyElement(); } + this.invokeRecursively(function(view) { + if (view.clearRenderedChildren) { view.clearRenderedChildren(); } + }); + }, + + elementId: null, + + /** + Attempts to discover the element in the parent element. The default + implementation looks for an element with an ID of `elementId` (or the + view's guid if `elementId` is null). You can override this method to + provide your own form of lookup. For example, if you want to discover your + element using a CSS class name instead of an ID. + + @method findElementInParentElement + @param {DOMElement} parentElement The parent's DOM element + @return {DOMElement} The discovered element + */ + findElementInParentElement: function(parentElem) { + var id = "#" + this.elementId; + return jQuery(id)[0] || jQuery(id, parentElem)[0]; + }, + + /** + Creates a DOM representation of the view and all of its + child views by recursively calling the `render()` method. + + After the element has been created, `didInsertElement` will + be called on this view and all of its child views. + + @method createElement + @return {Ember.View} receiver + */ + createElement: function() { + if (get(this, 'element')) { return this; } + + var buffer = this.renderToBuffer(); + set(this, 'element', buffer.element()); + + return this; + }, + + /** + Called when a view is going to insert an element into the DOM. + + @event willInsertElement + */ + willInsertElement: Ember.K, + + /** + Called when the element of the view has been inserted into the DOM + or after the view was re-rendered. Override this function to do any + set up that requires an element in the document body. + + @event didInsertElement + */ + didInsertElement: Ember.K, + + /** + Called when the view is about to rerender, but before anything has + been torn down. This is a good opportunity to tear down any manual + observers you have installed based on the DOM state + + @event willClearRender + */ + willClearRender: Ember.K, + + /** + Run this callback on the current view (unless includeSelf is false) and recursively on child views. + + @method invokeRecursively + @param fn {Function} + @param includeSelf {Boolean} Includes itself if true. + @private + */ + invokeRecursively: function(fn, includeSelf) { + var childViews = (includeSelf === false) ? this._childViews : [this]; + var currentViews, view, currentChildViews; + + while (childViews.length) { + currentViews = childViews.slice(); + childViews = []; + + for (var i=0, l=currentViews.length; i` tag for views. + + @property tagName + @type String + @default null + */ + + // We leave this null by default so we can tell the difference between + // the default case and a user-specified tag. + tagName: null, + + /** + The WAI-ARIA role of the control represented by this view. For example, a + button may have a role of type 'button', or a pane may have a role of + type 'alertdialog'. This property is used by assistive software to help + visually challenged users navigate rich web applications. + + The full list of valid WAI-ARIA roles is available at: + [http://www.w3.org/TR/wai-aria/roles#roles_categorization](http://www.w3.org/TR/wai-aria/roles#roles_categorization) + + @property ariaRole + @type String + @default null + */ + ariaRole: null, + + /** + Standard CSS class names to apply to the view's outer element. This + property automatically inherits any class names defined by the view's + superclasses as well. + + @property classNames + @type Array + @default ['ember-view'] + */ + classNames: ['ember-view'], + + /** + A list of properties of the view to apply as class names. If the property + is a string value, the value of that string will be applied as a class + name. + + ```javascript + // Applies the 'high' class to the view element + Ember.View.extend({ + classNameBindings: ['priority'] + priority: 'high' + }); + ``` + + If the value of the property is a Boolean, the name of that property is + added as a dasherized class name. + + ```javascript + // Applies the 'is-urgent' class to the view element + Ember.View.extend({ + classNameBindings: ['isUrgent'] + isUrgent: true + }); + ``` + + If you would prefer to use a custom value instead of the dasherized + property name, you can pass a binding like this: + + ```javascript + // Applies the 'urgent' class to the view element + Ember.View.extend({ + classNameBindings: ['isUrgent:urgent'] + isUrgent: true + }); + ``` + + This list of properties is inherited from the view's superclasses as well. + + @property classNameBindings + @type Array + @default [] + */ + classNameBindings: EMPTY_ARRAY, + + /** + A list of properties of the view to apply as attributes. If the property is + a string value, the value of that string will be applied as the attribute. + + ```javascript + // Applies the type attribute to the element + // with the value "button", like
    + Ember.View.extend({ + attributeBindings: ['type'], + type: 'button' + }); + ``` + + If the value of the property is a Boolean, the name of that property is + added as an attribute. + + ```javascript + // Renders something like
    + Ember.View.extend({ + attributeBindings: ['enabled'], + enabled: true + }); + ``` + + @property attributeBindings + */ + attributeBindings: EMPTY_ARRAY, + + // ....................................................... + // CORE DISPLAY METHODS + // + + /** + Setup a view, but do not finish waking it up. + + * configure `childViews` + * register the view with the global views hash, which is used for event + dispatch + + @method init + @private + */ + init: function() { + this.elementId = this.elementId || guidFor(this); + + this._super(); + + // setup child views. be sure to clone the child views array first + this._childViews = this._childViews.slice(); + + Ember.assert("Only arrays are allowed for 'classNameBindings'", typeOf(this.classNameBindings) === 'array'); + this.classNameBindings = A(this.classNameBindings.slice()); + + Ember.assert("Only arrays are allowed for 'classNames'", typeOf(this.classNames) === 'array'); + this.classNames = A(this.classNames.slice()); + }, + + appendChild: function(view, options) { + return this.currentState.appendChild(this, view, options); + }, + + /** + Removes the child view from the parent view. + + @method removeChild + @param {Ember.View} view + @return {Ember.View} receiver + */ + removeChild: function(view) { + // If we're destroying, the entire subtree will be + // freed, and the DOM will be handled separately, + // so no need to mess with childViews. + if (this.isDestroying) { return; } + + // update parent node + set(view, '_parentView', null); + + // remove view from childViews array. + var childViews = this._childViews; + + a_removeObject(childViews, view); + + this.propertyDidChange('childViews'); // HUH?! what happened to will change? + + return this; + }, + + /** + Removes all children from the `parentView`. + + @method removeAllChildren + @return {Ember.View} receiver + */ + removeAllChildren: function() { + return this.mutateChildViews(function(parentView, view) { + parentView.removeChild(view); + }); + }, + + destroyAllChildren: function() { + return this.mutateChildViews(function(parentView, view) { + view.destroy(); + }); + }, + + /** + Removes the view from its `parentView`, if one is found. Otherwise + does nothing. + + @method removeFromParent + @return {Ember.View} receiver + */ + removeFromParent: function() { + var parent = this._parentView; + + // Remove DOM element from parent + this.remove(); + + if (parent) { parent.removeChild(this); } + return this; + }, + + /** + You must call `destroy` on a view to destroy the view (and all of its + child views). This will remove the view from any parent node, then make + sure that the DOM element managed by the view can be released by the + memory manager. + + @method destroy + */ + destroy: function() { + var childViews = this._childViews, + // get parentView before calling super because it'll be destroyed + nonVirtualParentView = get(this, 'parentView'), + viewName = this.viewName, + childLen, i; + + if (!this._super()) { return; } + + childLen = childViews.length; + for (i=childLen-1; i>=0; i--) { + childViews[i].removedFromDOM = true; + } + + // remove from non-virtual parent view if viewName was specified + if (viewName && nonVirtualParentView) { + nonVirtualParentView.set(viewName, null); + } + + childLen = childViews.length; + for (i=childLen-1; i>=0; i--) { + childViews[i].destroy(); + } + + return this; + }, + + /** + Instantiates a view to be added to the childViews array during view + initialization. You generally will not call this method directly unless + you are overriding `createChildViews()`. Note that this method will + automatically configure the correct settings on the new view instance to + act as a child of the parent. + + @method createChildView + @param {Class|String} viewClass + @param {Hash} [attrs] Attributes to add + @return {Ember.View} new instance + */ + createChildView: function(view, attrs) { + if (!view) { + throw new TypeError("createChildViews first argument must exist"); + } + + if (view.isView && view._parentView === this && view.container === this.container) { + return view; + } + + attrs = attrs || {}; + attrs._parentView = this; + + if (CoreView.detect(view)) { + attrs.templateData = attrs.templateData || get(this, 'templateData'); + + attrs.container = this.container; + view = view.create(attrs); + + // don't set the property on a virtual view, as they are invisible to + // consumers of the view API + if (view.viewName) { + set(get(this, 'concreteView'), view.viewName, view); + } + } else if ('string' === typeof view) { + var fullName = 'view:' + view; + var ViewKlass = this.container.lookupFactory(fullName); + + Ember.assert("Could not find view: '" + fullName + "'", !!ViewKlass); + + attrs.templateData = get(this, 'templateData'); + view = ViewKlass.create(attrs); + } else { + Ember.assert('You must pass instance or subclass of View', view.isView); + attrs.container = this.container; + + if (!get(view, 'templateData')) { + attrs.templateData = get(this, 'templateData'); + } + + setProperties(view, attrs); + + } + + return view; + }, + + becameVisible: Ember.K, + becameHidden: Ember.K, + + /** + When the view's `isVisible` property changes, toggle the visibility + element of the actual DOM element. + + @method _isVisibleDidChange + @private + */ + _isVisibleDidChange: observer('isVisible', function() { + if (this._isVisible === get(this, 'isVisible')) { return ; } + run.scheduleOnce('render', this, this._toggleVisibility); + }), + + _toggleVisibility: function() { + var $el = this.$(); + if (!$el) { return; } + + var isVisible = get(this, 'isVisible'); + + if (this._isVisible === isVisible) { return ; } + + $el.toggle(isVisible); + + this._isVisible = isVisible; + + if (this._isAncestorHidden()) { return; } + + if (isVisible) { + this._notifyBecameVisible(); + } else { + this._notifyBecameHidden(); + } + }, + + _notifyBecameVisible: function() { + this.trigger('becameVisible'); + + this.forEachChildView(function(view) { + var isVisible = get(view, 'isVisible'); + + if (isVisible || isVisible === null) { + view._notifyBecameVisible(); + } + }); + }, + + _notifyBecameHidden: function() { + this.trigger('becameHidden'); + this.forEachChildView(function(view) { + var isVisible = get(view, 'isVisible'); + + if (isVisible || isVisible === null) { + view._notifyBecameHidden(); + } + }); + }, + + _isAncestorHidden: function() { + var parent = get(this, 'parentView'); + + while (parent) { + if (get(parent, 'isVisible') === false) { return true; } + + parent = get(parent, 'parentView'); + } + + return false; + }, + + clearBuffer: function() { + this.invokeRecursively(nullViewsBuffer); + }, + + transitionTo: function(state, children) { + var priorState = this.currentState, + currentState = this.currentState = this.states[state]; + this.state = state; + + if (priorState && priorState.exit) { priorState.exit(this); } + if (currentState.enter) { currentState.enter(this); } + if (state === 'inDOM') { meta(this).cache.element = undefined; } + + if (children !== false) { + this.forEachChildView(function(view) { + view.transitionTo(state); + }); + } + }, + + // ....................................................... + // EVENT HANDLING + // + + /** + Handle events from `Ember.EventDispatcher` + + @method handleEvent + @param eventName {String} + @param evt {Event} + @private + */ + handleEvent: function(eventName, evt) { + return this.currentState.handleEvent(this, eventName, evt); + }, + + registerObserver: function(root, path, target, observer) { + if (!observer && 'function' === typeof target) { + observer = target; + target = null; + } + + if (!root || typeof root !== 'object') { + return; + } + + var view = this, + stateCheckedObserver = function() { + view.currentState.invokeObserver(this, observer); + }, + scheduledObserver = function() { + run.scheduleOnce('render', this, stateCheckedObserver); + }; + + addObserver(root, path, target, scheduledObserver); + + this.one('willClearRender', function() { + removeObserver(root, path, target, scheduledObserver); + }); + } + + }); + + /* + Describe how the specified actions should behave in the various + states that a view can exist in. Possible states: + + * preRender: when a view is first instantiated, and after its + element was destroyed, it is in the preRender state + * inBuffer: once a view has been rendered, but before it has + been inserted into the DOM, it is in the inBuffer state + * hasElement: the DOM representation of the view is created, + and is ready to be inserted + * inDOM: once a view has been inserted into the DOM it is in + the inDOM state. A view spends the vast majority of its + existence in this state. + * destroyed: once a view has been destroyed (using the destroy + method), it is in this state. No further actions can be invoked + on a destroyed view. + */ + + // in the destroyed state, everything is illegal + + // before rendering has begun, all legal manipulations are noops. + + // inside the buffer, legal manipulations are done on the buffer + + // once the view has been inserted into the DOM, legal manipulations + // are done on the DOM element. + + function notifyMutationListeners() { + run.once(View, 'notifyMutationListeners'); + } + + var DOMManager = { + prepend: function(view, html) { + view.$().prepend(html); + notifyMutationListeners(); + }, + + after: function(view, html) { + view.$().after(html); + notifyMutationListeners(); + }, + + html: function(view, html) { + view.$().html(html); + notifyMutationListeners(); + }, + + replace: function(view) { + var element = get(view, 'element'); + + set(view, 'element', null); + + view._insertElementLater(function() { + jQuery(element).replaceWith(get(view, 'element')); + notifyMutationListeners(); + }); + }, + + remove: function(view) { + view.$().remove(); + notifyMutationListeners(); + }, + + empty: function(view) { + view.$().empty(); + notifyMutationListeners(); + } + }; + + View.reopen({ + domManager: DOMManager + }); + + View.reopenClass({ + + /** + Parse a path and return an object which holds the parsed properties. + + For example a path like "content.isEnabled:enabled:disabled" will return the + following object: + + ```javascript + { + path: "content.isEnabled", + className: "enabled", + falsyClassName: "disabled", + classNames: ":enabled:disabled" + } + ``` + + @method _parsePropertyPath + @static + @private + */ + _parsePropertyPath: function(path) { + var split = path.split(':'), + propertyPath = split[0], + classNames = "", + className, + falsyClassName; + + // check if the property is defined as prop:class or prop:trueClass:falseClass + if (split.length > 1) { + className = split[1]; + if (split.length === 3) { falsyClassName = split[2]; } + + classNames = ':' + className; + if (falsyClassName) { classNames += ":" + falsyClassName; } + } + + return { + path: propertyPath, + classNames: classNames, + className: (className === '') ? undefined : className, + falsyClassName: falsyClassName + }; + }, + + /** + Get the class name for a given value, based on the path, optional + `className` and optional `falsyClassName`. + + - if a `className` or `falsyClassName` has been specified: + - if the value is truthy and `className` has been specified, + `className` is returned + - if the value is falsy and `falsyClassName` has been specified, + `falsyClassName` is returned + - otherwise `null` is returned + - if the value is `true`, the dasherized last part of the supplied path + is returned + - if the value is not `false`, `undefined` or `null`, the `value` + is returned + - if none of the above rules apply, `null` is returned + + @method _classStringForValue + @param path + @param val + @param className + @param falsyClassName + @static + @private + */ + _classStringForValue: function(path, val, className, falsyClassName) { + // When using the colon syntax, evaluate the truthiness or falsiness + // of the value to determine which className to return + if (className || falsyClassName) { + if (className && !!val) { + return className; + + } else if (falsyClassName && !val) { + return falsyClassName; + + } else { + return null; + } + + // If value is a Boolean and true, return the dasherized property + // name. + } else if (val === true) { + // Normalize property path to be suitable for use + // as a class name. For exaple, content.foo.barBaz + // becomes bar-baz. + var parts = path.split('.'); + return dasherize(parts[parts.length-1]); + + // If the value is not false, undefined, or null, return the current + // value of the property. + } else if (val !== false && val != null) { + return val; + + // Nothing to display. Return null so that the old class is removed + // but no new class is added. + } else { + return null; + } + } + }); + + var mutation = EmberObject.extend(Evented).create(); + + View.addMutationListener = function(callback) { + mutation.on('change', callback); + }; + + View.removeMutationListener = function(callback) { + mutation.off('change', callback); + }; + + View.notifyMutationListeners = function() { + mutation.trigger('change'); + }; + + /** + Global views hash + + @property views + @static + @type Hash + */ + View.views = {}; + + // If someone overrides the child views computed property when + // defining their class, we want to be able to process the user's + // supplied childViews and then restore the original computed property + // at view initialization time. This happens in Ember.ContainerView's init + // method. + View.childViewsProperty = childViewsProperty; + + View.applyAttributeBindings = function(elem, name, value) { + var type = typeOf(value); + + // if this changes, also change the logic in ember-handlebars/lib/helpers/binding.js + if (name !== 'value' && (type === 'string' || (type === 'number' && !isNaN(value)))) { + if (value !== elem.attr(name)) { + elem.attr(name, value); + } + } else if (name === 'value' || type === 'boolean') { + if (isNone(value) || value === false) { + // `null`, `undefined` or `false` should remove attribute + elem.removeAttr(name); + elem.prop(name, ''); + } else if (value !== elem.prop(name)) { + // value should always be properties + elem.prop(name, value); + } + } else if (!value) { + elem.removeAttr(name); + } + }; + + __exports__.CoreView = CoreView; + __exports__.View = View; + __exports__.ViewCollection = ViewCollection; + }); +})(); + +(function() { +define("metamorph", + [], + function() { + "use strict"; + // ========================================================================== + // Project: metamorph + // Copyright: ©2014 Tilde, Inc. All rights reserved. + // ========================================================================== + + var K = function() {}, + guid = 0, + disableRange = (function(){ + if ('undefined' !== typeof MetamorphENV) { + return MetamorphENV.DISABLE_RANGE_API; + } else if ('undefined' !== ENV) { + return ENV.DISABLE_RANGE_API; + } else { + return false; + } + })(), + + // Feature-detect the W3C range API, the extended check is for IE9 which only partially supports ranges + supportsRange = (!disableRange) && typeof document !== 'undefined' && ('createRange' in document) && (typeof Range !== 'undefined') && Range.prototype.createContextualFragment, + + // Internet Explorer prior to 9 does not allow setting innerHTML if the first element + // is a "zero-scope" element. This problem can be worked around by making + // the first node an invisible text node. We, like Modernizr, use ­ + needsShy = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "
    "; + testEl.firstChild.innerHTML = ""; + return testEl.firstChild.innerHTML === ''; + })(), + + + // IE 8 (and likely earlier) likes to move whitespace preceeding + // a script tag to appear after it. This means that we can + // accidentally remove whitespace when updating a morph. + movesWhitespace = document && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "Test: Value"; + return testEl.childNodes[0].nodeValue === 'Test:' && + testEl.childNodes[2].nodeValue === ' Value'; + })(); + + // Constructor that supports either Metamorph('foo') or new + // Metamorph('foo'); + // + // Takes a string of HTML as the argument. + + var Metamorph = function(html) { + var self; + + if (this instanceof Metamorph) { + self = this; + } else { + self = new K(); + } + + self.innerHTML = html; + var myGuid = 'metamorph-'+(guid++); + self.start = myGuid + '-start'; + self.end = myGuid + '-end'; + + return self; + }; + + K.prototype = Metamorph.prototype; + + var rangeFor, htmlFunc, removeFunc, outerHTMLFunc, appendToFunc, afterFunc, prependFunc, startTagFunc, endTagFunc; + + outerHTMLFunc = function() { + return this.startTag() + this.innerHTML + this.endTag(); + }; + + startTagFunc = function() { + /* + * We replace chevron by its hex code in order to prevent escaping problems. + * Check this thread for more explaination: + * http://stackoverflow.com/questions/8231048/why-use-x3c-instead-of-when-generating-html-from-javascript + */ + return "hi"; + * div.firstChild.firstChild.tagName //=> "" + * + * If our script markers are inside such a node, we need to find that + * node and use *it* as the marker. + */ + var realNode = function(start) { + while (start.parentNode.tagName === "") { + start = start.parentNode; + } + + return start; + }; + + /* + * When automatically adding a tbody, Internet Explorer inserts the + * tbody immediately before the first . Other browsers create it + * before the first node, no matter what. + * + * This means the the following code: + * + * div = document.createElement("div"); + * div.innerHTML = "
    hi
    + * + * Generates the following DOM in IE: + * + * + div + * + table + * - script id='first' + * + tbody + * + tr + * + td + * - "hi" + * - script id='last' + * + * Which means that the two script tags, even though they were + * inserted at the same point in the hierarchy in the original + * HTML, now have different parents. + * + * This code reparents the first script tag by making it the tbody's + * first child. + * + */ + var fixParentage = function(start, end) { + if (start.parentNode !== end.parentNode) { + end.parentNode.insertBefore(start, end.parentNode.firstChild); + } + }; + + htmlFunc = function(html, outerToo) { + // get the real starting node. see realNode for details. + var start = realNode(document.getElementById(this.start)); + var end = document.getElementById(this.end); + var parentNode = end.parentNode; + var node, nextSibling, last; + + // make sure that the start and end nodes share the same + // parent. If not, fix it. + fixParentage(start, end); + + // remove all of the nodes after the starting placeholder and + // before the ending placeholder. + node = start.nextSibling; + while (node) { + nextSibling = node.nextSibling; + last = node === end; + + // if this is the last node, and we want to remove it as well, + // set the `end` node to the next sibling. This is because + // for the rest of the function, we insert the new nodes + // before the end (note that insertBefore(node, null) is + // the same as appendChild(node)). + // + // if we do not want to remove it, just break. + if (last) { + if (outerToo) { end = node.nextSibling; } else { break; } + } + + node.parentNode.removeChild(node); + + // if this is the last node and we didn't break before + // (because we wanted to remove the outer nodes), break + // now. + if (last) { break; } + + node = nextSibling; + } + + // get the first node for the HTML string, even in cases like + // tables and lists where a simple innerHTML on a div would + // swallow some of the content. + node = firstNodeFor(start.parentNode, html); + + if (outerToo) { + start.parentNode.removeChild(start); + } + + // copy the nodes for the HTML between the starting and ending + // placeholder. + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, end); + node = nextSibling; + } + }; + + // remove the nodes in the DOM representing this metamorph. + // + // this includes the starting and ending placeholders. + removeFunc = function() { + var start = realNode(document.getElementById(this.start)); + var end = document.getElementById(this.end); + + this.html(''); + start.parentNode.removeChild(start); + end.parentNode.removeChild(end); + }; + + appendToFunc = function(parentNode) { + var node = firstNodeFor(parentNode, this.outerHTML()); + var nextSibling; + + while (node) { + nextSibling = node.nextSibling; + parentNode.appendChild(node); + node = nextSibling; + } + }; + + afterFunc = function(html) { + // get the real starting node. see realNode for details. + var end = document.getElementById(this.end); + var insertBefore = end.nextSibling; + var parentNode = end.parentNode; + var nextSibling; + var node; + + // get the first node for the HTML string, even in cases like + // tables and lists where a simple innerHTML on a div would + // swallow some of the content. + node = firstNodeFor(parentNode, html); + + // copy the nodes for the HTML between the starting and ending + // placeholder. + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, insertBefore); + node = nextSibling; + } + }; + + prependFunc = function(html) { + var start = document.getElementById(this.start); + var parentNode = start.parentNode; + var nextSibling; + var node; + + node = firstNodeFor(parentNode, html); + var insertBefore = start.nextSibling; + + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, insertBefore); + node = nextSibling; + } + }; + } + + Metamorph.prototype.html = function(html) { + this.checkRemoved(); + if (html === undefined) { return this.innerHTML; } + + htmlFunc.call(this, html); + + this.innerHTML = html; + }; + + Metamorph.prototype.replaceWith = function(html) { + this.checkRemoved(); + htmlFunc.call(this, html, true); + }; + + Metamorph.prototype.remove = removeFunc; + Metamorph.prototype.outerHTML = outerHTMLFunc; + Metamorph.prototype.appendTo = appendToFunc; + Metamorph.prototype.after = afterFunc; + Metamorph.prototype.prepend = prependFunc; + Metamorph.prototype.startTag = startTagFunc; + Metamorph.prototype.endTag = endTagFunc; + + Metamorph.prototype.isRemoved = function() { + var before = document.getElementById(this.start); + var after = document.getElementById(this.end); + + return !before || !after; + }; + + Metamorph.prototype.checkRemoved = function() { + if (this.isRemoved()) { + throw new Error("Cannot perform operations on a Metamorph that is not in the DOM."); + } + }; + + return Metamorph; + }); + +})(); + +(function() { +define("ember-handlebars-compiler", + ["ember-metal/core","exports"], + function(__dependency1__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars-compiler + */ + + var Ember = __dependency1__["default"]; + + // ES6Todo: you'll need to import debugger once debugger is es6'd. + if (typeof Ember.assert === 'undefined') { Ember.assert = function(){}; }; + if (typeof Ember.FEATURES === 'undefined') { Ember.FEATURES = { isEnabled: function(){} }; }; + + var objectCreate = Object.create || function(parent) { + function F() {} + F.prototype = parent; + return new F(); + }; + + // set up for circular references later + var View, Component; + + // ES6Todo: when ember-debug is es6'ed import this. + // var emberAssert = Ember.assert; + var Handlebars = (Ember.imports && Ember.imports.Handlebars) || (this && this.Handlebars); + if (!Handlebars && typeof require === 'function') { + Handlebars = require('handlebars'); + } + + Ember.assert("Ember Handlebars requires Handlebars version 1.0 or 1.1. Include " + + "a SCRIPT tag in the HTML HEAD linking to the Handlebars file " + + "before you link to Ember.", Handlebars); + + Ember.assert("Ember Handlebars requires Handlebars version 1.0 or 1.1, " + + "COMPILER_REVISION expected: 4, got: " + Handlebars.COMPILER_REVISION + + " - Please note: Builds of master may have other COMPILER_REVISION values.", + Handlebars.COMPILER_REVISION === 4); + + /** + Prepares the Handlebars templating library for use inside Ember's view + system. + + The `Ember.Handlebars` object is the standard Handlebars library, extended to + use Ember's `get()` method instead of direct property access, which allows + computed properties to be used inside templates. + + To create an `Ember.Handlebars` template, call `Ember.Handlebars.compile()`. + This will return a function that can be used by `Ember.View` for rendering. + + @class Handlebars + @namespace Ember + */ + var EmberHandlebars = Ember.Handlebars = objectCreate(Handlebars); + + /** + Register a bound helper or custom view helper. + + ## Simple bound helper example + + ```javascript + Ember.Handlebars.helper('capitalize', function(value) { + return value.toUpperCase(); + }); + ``` + + The above bound helper can be used inside of templates as follows: + + ```handlebars + {{capitalize name}} + ``` + + In this case, when the `name` property of the template's context changes, + the rendered value of the helper will update to reflect this change. + + For more examples of bound helpers, see documentation for + `Ember.Handlebars.registerBoundHelper`. + + ## Custom view helper example + + Assuming a view subclass named `App.CalendarView` were defined, a helper + for rendering instances of this view could be registered as follows: + + ```javascript + Ember.Handlebars.helper('calendar', App.CalendarView): + ``` + + The above bound helper can be used inside of templates as follows: + + ```handlebars + {{calendar}} + ``` + + Which is functionally equivalent to: + + ```handlebars + {{view App.CalendarView}} + ``` + + Options in the helper will be passed to the view in exactly the same + manner as with the `view` helper. + + @method helper + @for Ember.Handlebars + @param {String} name + @param {Function|Ember.View} function or view class constructor + @param {String} dependentKeys* + */ + EmberHandlebars.helper = function(name, value) { + if (!View) { View = requireModule('ember-views/views/view')['View']; } // ES6TODO: stupid circular dep + if (!Component) { Component = requireModule('ember-views/views/component')['default']; } // ES6TODO: stupid circular dep + + Ember.assert("You tried to register a component named '" + name + "', but component names must include a '-'", !Component.detect(value) || name.match(/-/)); + + if (View.detect(value)) { + EmberHandlebars.registerHelper(name, EmberHandlebars.makeViewHelper(value)); + } else { + EmberHandlebars.registerBoundHelper.apply(null, arguments); + } + }; + + /** + Returns a helper function that renders the provided ViewClass. + + Used internally by Ember.Handlebars.helper and other methods + involving helper/component registration. + + @private + @method makeViewHelper + @for Ember.Handlebars + @param {Function} ViewClass view class constructor + */ + EmberHandlebars.makeViewHelper = function(ViewClass) { + return function(options) { + Ember.assert("You can only pass attributes (such as name=value) not bare values to a helper for a View found in '" + ViewClass.toString() + "'", arguments.length < 2); + return EmberHandlebars.helpers.view.call(this, ViewClass, options); + }; + }; + + /** + @class helpers + @namespace Ember.Handlebars + */ + EmberHandlebars.helpers = objectCreate(Handlebars.helpers); + + /** + Override the the opcode compiler and JavaScript compiler for Handlebars. + + @class Compiler + @namespace Ember.Handlebars + @private + @constructor + */ + EmberHandlebars.Compiler = function() {}; + + // Handlebars.Compiler doesn't exist in runtime-only + if (Handlebars.Compiler) { + EmberHandlebars.Compiler.prototype = objectCreate(Handlebars.Compiler.prototype); + } + + EmberHandlebars.Compiler.prototype.compiler = EmberHandlebars.Compiler; + + /** + @class JavaScriptCompiler + @namespace Ember.Handlebars + @private + @constructor + */ + EmberHandlebars.JavaScriptCompiler = function() {}; + + // Handlebars.JavaScriptCompiler doesn't exist in runtime-only + if (Handlebars.JavaScriptCompiler) { + EmberHandlebars.JavaScriptCompiler.prototype = objectCreate(Handlebars.JavaScriptCompiler.prototype); + EmberHandlebars.JavaScriptCompiler.prototype.compiler = EmberHandlebars.JavaScriptCompiler; + } + + + EmberHandlebars.JavaScriptCompiler.prototype.namespace = "Ember.Handlebars"; + + EmberHandlebars.JavaScriptCompiler.prototype.initializeBuffer = function() { + return "''"; + }; + + /** + Override the default buffer for Ember Handlebars. By default, Handlebars + creates an empty String at the beginning of each invocation and appends to + it. Ember's Handlebars overrides this to append to a single shared buffer. + + @private + @method appendToBuffer + @param string {String} + */ + EmberHandlebars.JavaScriptCompiler.prototype.appendToBuffer = function(string) { + return "data.buffer.push("+string+");"; + }; + + // Hacks ahead: + // Handlebars presently has a bug where the `blockHelperMissing` hook + // doesn't get passed the name of the missing helper name, but rather + // gets passed the value of that missing helper evaluated on the current + // context, which is most likely `undefined` and totally useless. + // + // So we alter the compiled template function to pass the name of the helper + // instead, as expected. + // + // This can go away once the following is closed: + // https://github.com/wycats/handlebars.js/issues/634 + + var DOT_LOOKUP_REGEX = /helpers\.(.*?)\)/, + BRACKET_STRING_LOOKUP_REGEX = /helpers\['(.*?)'/, + INVOCATION_SPLITTING_REGEX = /(.*blockHelperMissing\.call\(.*)(stack[0-9]+)(,.*)/; + + EmberHandlebars.JavaScriptCompiler.stringifyLastBlockHelperMissingInvocation = function(source) { + var helperInvocation = source[source.length - 1], + helperName = (DOT_LOOKUP_REGEX.exec(helperInvocation) || BRACKET_STRING_LOOKUP_REGEX.exec(helperInvocation))[1], + matches = INVOCATION_SPLITTING_REGEX.exec(helperInvocation); + + source[source.length - 1] = matches[1] + "'" + helperName + "'" + matches[3]; + }; + + var stringifyBlockHelperMissing = EmberHandlebars.JavaScriptCompiler.stringifyLastBlockHelperMissingInvocation; + + var originalBlockValue = EmberHandlebars.JavaScriptCompiler.prototype.blockValue; + EmberHandlebars.JavaScriptCompiler.prototype.blockValue = function() { + originalBlockValue.apply(this, arguments); + stringifyBlockHelperMissing(this.source); + }; + + var originalAmbiguousBlockValue = EmberHandlebars.JavaScriptCompiler.prototype.ambiguousBlockValue; + EmberHandlebars.JavaScriptCompiler.prototype.ambiguousBlockValue = function() { + originalAmbiguousBlockValue.apply(this, arguments); + stringifyBlockHelperMissing(this.source); + }; + + /** + Rewrite simple mustaches from `{{foo}}` to `{{bind "foo"}}`. This means that + all simple mustaches in Ember's Handlebars will also set up an observer to + keep the DOM up to date when the underlying property changes. + + @private + @method mustache + @for Ember.Handlebars.Compiler + @param mustache + */ + EmberHandlebars.Compiler.prototype.mustache = function(mustache) { + if (!(mustache.params.length || mustache.hash)) { + var id = new Handlebars.AST.IdNode([{ part: '_triageMustache' }]); + + // Update the mustache node to include a hash value indicating whether the original node + // was escaped. This will allow us to properly escape values when the underlying value + // changes and we need to re-render the value. + if (!mustache.escaped) { + mustache.hash = mustache.hash || new Handlebars.AST.HashNode([]); + mustache.hash.pairs.push(["unescaped", new Handlebars.AST.StringNode("true")]); + } + mustache = new Handlebars.AST.MustacheNode([id].concat([mustache.id]), mustache.hash, !mustache.escaped); + } + + return Handlebars.Compiler.prototype.mustache.call(this, mustache); + }; + + /** + Used for precompilation of Ember Handlebars templates. This will not be used + during normal app execution. + + @method precompile + @for Ember.Handlebars + @static + @param {String} string The template to precompile + @param {Boolean} asObject optional parameter, defaulting to true, of whether or not the + compiled template should be returned as an Object or a String + */ + EmberHandlebars.precompile = function(string, asObject) { + var ast = Handlebars.parse(string); + + var options = { + knownHelpers: { + action: true, + unbound: true, + 'bind-attr': true, + template: true, + view: true, + _triageMustache: true + }, + data: true, + stringParams: true + }; + + asObject = asObject === undefined ? true : asObject; + + var environment = new EmberHandlebars.Compiler().compile(ast, options); + return new EmberHandlebars.JavaScriptCompiler().compile(environment, options, undefined, asObject); + }; + + // We don't support this for Handlebars runtime-only + if (Handlebars.compile) { + /** + The entry point for Ember Handlebars. This replaces the default + `Handlebars.compile` and turns on template-local data and String + parameters. + + @method compile + @for Ember.Handlebars + @static + @param {String} string The template to compile + @return {Function} + */ + EmberHandlebars.compile = function(string) { + var ast = Handlebars.parse(string); + var options = { data: true, stringParams: true }; + var environment = new EmberHandlebars.Compiler().compile(ast, options); + var templateSpec = new EmberHandlebars.JavaScriptCompiler().compile(environment, options, undefined, true); + + var template = EmberHandlebars.template(templateSpec); + template.isMethod = false; //Make sure we don't wrap templates with ._super + + return template; + }; + } + + __exports__["default"] = EmberHandlebars; + }); +})(); + +(function() { +define("ember-handlebars/component_lookup", + ["ember-runtime/system/object","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var EmberObject = __dependency1__["default"]; + + var ComponentLookup = EmberObject.extend({ + lookupFactory: function(name, container) { + + container = container || this.container; + + var fullName = 'component:' + name, + templateFullName = 'template:components/' + name, + templateRegistered = container && container.has(templateFullName); + + if (templateRegistered) { + container.injection(fullName, 'layout', templateFullName); + } + + var Component = container.lookupFactory(fullName); + + // Only treat as a component if either the component + // or a template has been registered. + if (templateRegistered || Component) { + if (!Component) { + container.register(fullName, Ember.Component); + Component = container.lookupFactory(fullName); + } + return Component; + } + } + }); + + __exports__["default"] = ComponentLookup; + }); +define("ember-handlebars/controls", + ["ember-handlebars/controls/checkbox","ember-handlebars/controls/text_field","ember-handlebars/controls/text_area","ember-metal/core","ember-handlebars-compiler","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + var Checkbox = __dependency1__["default"]; + var TextField = __dependency2__["default"]; + var TextArea = __dependency3__["default"]; + + var Ember = __dependency4__["default"]; + // Ember.assert + // var emberAssert = Ember.assert; + + var EmberHandlebars = __dependency5__["default"]; + var helpers = EmberHandlebars.helpers; + /** + @module ember + @submodule ember-handlebars-compiler + */ + + /** + + The `{{input}}` helper inserts an HTML `` tag into the template, + with a `type` value of either `text` or `checkbox`. If no `type` is provided, + `text` will be the default value applied. The attributes of `{{input}}` + match those of the native HTML tag as closely as possible for these two types. + + ## Use as text field + An `{{input}}` with no `type` or a `type` of `text` will render an HTML text input. + The following HTML attributes can be set via the helper: + + + + + + + + + + + + +
    `readonly``required``autofocus`
    `value``placeholder``disabled`
    `size``tabindex``maxlength`
    `name``min``max`
    `pattern``accept``autocomplete`
    `autosave``formaction``formenctype`
    `formmethod``formnovalidate``formtarget`
    `height``inputmode``multiple`
    `step``width``form`
    `selectionDirection``spellcheck` 
    + + + When set to a quoted string, these values will be directly applied to the HTML + element. When left unquoted, these values will be bound to a property on the + template's current rendering context (most typically a controller instance). + + ## Unbound: + + ```handlebars + {{input value="http://www.facebook.com"}} + ``` + + + ```html + + ``` + + ## Bound: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + firstName: "Stanley", + entryNotAllowed: true + }); + ``` + + + ```handlebars + {{input type="text" value=firstName disabled=entryNotAllowed size="50"}} + ``` + + + ```html + + ``` + + ## Extension + + Internally, `{{input type="text"}}` creates an instance of `Ember.TextField`, passing + arguments from the helper to `Ember.TextField`'s `create` method. You can extend the + capablilties of text inputs in your applications by reopening this class. For example, + if you are deploying to browsers where the `required` attribute is used, you + can add this to the `TextField`'s `attributeBindings` property: + + + ```javascript + Ember.TextField.reopen({ + attributeBindings: ['required'] + }); + ``` + + Keep in mind when writing `Ember.TextField` subclasses that `Ember.TextField` + itself extends `Ember.Component`, meaning that it does NOT inherit + the `controller` of the parent view. + + See more about [Ember components](api/classes/Ember.Component.html) + + + ## Use as checkbox + + An `{{input}}` with a `type` of `checkbox` will render an HTML checkbox input. + The following HTML attributes can be set via the helper: + + * `checked` + * `disabled` + * `tabindex` + * `indeterminate` + * `name` + * `autofocus` + * `form` + + + When set to a quoted string, these values will be directly applied to the HTML + element. When left unquoted, these values will be bound to a property on the + template's current rendering context (most typically a controller instance). + + ## Unbound: + + ```handlebars + {{input type="checkbox" name="isAdmin"}} + ``` + + ```html + + ``` + + ## Bound: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + isAdmin: true + }); + ``` + + + ```handlebars + {{input type="checkbox" checked=isAdmin }} + ``` + + + ```html + + ``` + + ## Extension + + Internally, `{{input type="checkbox"}}` creates an instance of `Ember.Checkbox`, passing + arguments from the helper to `Ember.Checkbox`'s `create` method. You can extend the + capablilties of checkbox inputs in your applications by reopening this class. For example, + if you wanted to add a css class to all checkboxes in your application: + + + ```javascript + Ember.Checkbox.reopen({ + classNames: ['my-app-checkbox'] + }); + ``` + + + @method input + @for Ember.Handlebars.helpers + @param {Hash} options + */ + function inputHelper(options) { + Ember.assert('You can only pass attributes to the `input` helper, not arguments', arguments.length < 2); + + var hash = options.hash, + types = options.hashTypes, + inputType = hash.type, + onEvent = hash.on; + + delete hash.type; + delete hash.on; + + if (inputType === 'checkbox') { + Ember.assert("{{input type='checkbox'}} does not support setting `value=someBooleanValue`; you must use `checked=someBooleanValue` instead.", options.hashTypes.value !== 'ID'); + return helpers.view.call(this, Checkbox, options); + } else { + if (inputType) { hash.type = inputType; } + hash.onEvent = onEvent || 'enter'; + return helpers.view.call(this, TextField, options); + } + } + + /** + `{{textarea}}` inserts a new instance of ` + ``` + + Bound: + + In the following example, the `writtenWords` property on `App.ApplicationController` + will be updated live as the user types 'Lots of text that IS bound' into + the text area of their browser's window. + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound" + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + ``` + + Would result in the following HTML: + + ```html + + ``` + + If you wanted a one way binding between the text area and a div tag + somewhere else on your screen, you could use `Ember.computed.oneWay`: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound", + outputWrittenWords: Ember.computed.oneWay("writtenWords") + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + +
    + {{outputWrittenWords}} +
    + ``` + + Would result in the following HTML: + + ```html + + + <-- the following div will be updated in real time as you type --> + +
    + Lots of text that IS bound +
    + ``` + + Finally, this example really shows the power and ease of Ember when two + properties are bound to eachother via `Ember.computed.alias`. Type into + either text area box and they'll both stay in sync. Note that + `Ember.computed.alias` costs more in terms of performance, so only use it when + your really binding in both directions: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound", + twoWayWrittenWords: Ember.computed.alias("writtenWords") + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + {{textarea value=twoWayWrittenWords}} + ``` + + ```html + + + <-- both updated in real time --> + + + ``` + + ## Extension + + Internally, `{{textarea}}` creates an instance of `Ember.TextArea`, passing + arguments from the helper to `Ember.TextArea`'s `create` method. You can + extend the capabilities of text areas in your application by reopening this + class. For example, if you are deploying to browsers where the `required` + attribute is used, you can globally add support for the `required` attribute + on all `{{textarea}}`s' in your app by reopening `Ember.TextArea` or + `Ember.TextSupport` and adding it to the `attributeBindings` concatenated + property: + + ```javascript + Ember.TextArea.reopen({ + attributeBindings: ['required'] + }); + ``` + + Keep in mind when writing `Ember.TextArea` subclasses that `Ember.TextArea` + itself extends `Ember.Component`, meaning that it does NOT inherit + the `controller` of the parent view. + + See more about [Ember components](api/classes/Ember.Component.html) + + @method textarea + @for Ember.Handlebars.helpers + @param {Hash} options + */ + function textareaHelper(options) { + Ember.assert('You can only pass attributes to the `textarea` helper, not arguments', arguments.length < 2); + + var hash = options.hash, + types = options.hashTypes; + + return helpers.view.call(this, TextArea, options); + } + + __exports__.inputHelper = inputHelper; + __exports__.textareaHelper = textareaHelper; + }); +define("ember-handlebars/controls/checkbox", + ["ember-metal/property_get","ember-metal/property_set","ember-views/views/view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var set = __dependency2__.set; + var View = __dependency3__.View; + + /** + @module ember + @submodule ember-handlebars + */ + + /** + The internal class used to create text inputs when the `{{input}}` + helper is used with `type` of `checkbox`. + + See [handlebars.helpers.input](/api/classes/Ember.Handlebars.helpers.html#method_input) for usage details. + + ## Direct manipulation of `checked` + + The `checked` attribute of an `Ember.Checkbox` object should always be set + through the Ember object or by interacting with its rendered element + representation via the mouse, keyboard, or touch. Updating the value of the + checkbox via jQuery will result in the checked value of the object and its + element losing synchronization. + + ## Layout and LayoutName properties + + Because HTML `input` elements are self closing `layout` and `layoutName` + properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class Checkbox + @namespace Ember + @extends Ember.View + */ + var Checkbox = View.extend({ + classNames: ['ember-checkbox'], + + tagName: 'input', + + attributeBindings: ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', + 'autofocus', 'required', 'form'], + + type: "checkbox", + checked: false, + disabled: false, + indeterminate: false, + + init: function() { + this._super(); + this.on("change", this, this._updateElementValue); + }, + + didInsertElement: function() { + this._super(); + get(this, 'element').indeterminate = !!get(this, 'indeterminate'); + }, + + _updateElementValue: function() { + set(this, 'checked', this.$().prop('checked')); + } + }); + + __exports__["default"] = Checkbox; + }); +define("ember-handlebars/controls/select", + ["ember-handlebars-compiler","ember-metal/enumerable_utils","ember-metal/property_get","ember-metal/property_set","ember-views/views/view","ember-views/views/collection_view","ember-metal/utils","ember-metal/is_none","ember-metal/computed","ember-runtime/system/native_array","ember-metal/mixin","ember-metal/properties","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __exports__) { + "use strict"; + /*jshint eqeqeq:false newcap:false */ + + /** + @module ember + @submodule ember-handlebars + */ + + var EmberHandlebars = __dependency1__["default"]; + var EnumerableUtils = __dependency2__["default"]; + var get = __dependency3__.get; + var set = __dependency4__.set; + var View = __dependency5__.View; + var CollectionView = __dependency6__["default"]; + var isArray = __dependency7__.isArray; + var isNone = __dependency8__["default"]; + var computed = __dependency9__.computed; + var A = __dependency10__.A; + var observer = __dependency11__.observer; + var defineProperty = __dependency12__.defineProperty; + + var indexOf = EnumerableUtils.indexOf, + indexesOf = EnumerableUtils.indexesOf, + forEach = EnumerableUtils.forEach, + replace = EnumerableUtils.replace, + precompileTemplate = EmberHandlebars.compile; + + var SelectOption = View.extend({ + tagName: 'option', + attributeBindings: ['value', 'selected'], + + defaultTemplate: function(context, options) { + options = { data: options.data, hash: {} }; + EmberHandlebars.helpers.bind.call(context, "view.label", options); + }, + + init: function() { + this.labelPathDidChange(); + this.valuePathDidChange(); + + this._super(); + }, + + selected: computed(function() { + var content = get(this, 'content'), + selection = get(this, 'parentView.selection'); + if (get(this, 'parentView.multiple')) { + return selection && indexOf(selection, content.valueOf()) > -1; + } else { + // Primitives get passed through bindings as objects... since + // `new Number(4) !== 4`, we use `==` below + return content == selection; + } + }).property('content', 'parentView.selection'), + + labelPathDidChange: observer('parentView.optionLabelPath', function() { + var labelPath = get(this, 'parentView.optionLabelPath'); + + if (!labelPath) { return; } + + defineProperty(this, 'label', computed(function() { + return get(this, labelPath); + }).property(labelPath)); + }), + + valuePathDidChange: observer('parentView.optionValuePath', function() { + var valuePath = get(this, 'parentView.optionValuePath'); + + if (!valuePath) { return; } + + defineProperty(this, 'value', computed(function() { + return get(this, valuePath); + }).property(valuePath)); + }) + }); + + var SelectOptgroup = CollectionView.extend({ + tagName: 'optgroup', + attributeBindings: ['label'], + + selectionBinding: 'parentView.selection', + multipleBinding: 'parentView.multiple', + optionLabelPathBinding: 'parentView.optionLabelPath', + optionValuePathBinding: 'parentView.optionValuePath', + + itemViewClassBinding: 'parentView.optionView' + }); + + /** + The `Ember.Select` view class renders a + [select](https://developer.mozilla.org/en/HTML/Element/select) HTML element, + allowing the user to choose from a list of options. + + The text and `value` property of each ` + + + ``` + + The `value` attribute of the selected `"); + return buffer; + } + +function program3(depth0,data) { + + var stack1; + stack1 = helpers.each.call(depth0, "view.groupedContent", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(4, program4, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + else { data.buffer.push(''); } + } +function program4(depth0,data) { + + + data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.groupView", {hash:{ + 'content': ("content"), + 'label': ("label") + },hashTypes:{'content': "ID",'label': "ID"},hashContexts:{'content': depth0,'label': depth0},contexts:[depth0],types:["ID"],data:data}))); + } + +function program6(depth0,data) { + + var stack1; + stack1 = helpers.each.call(depth0, "view.content", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(7, program7, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + else { data.buffer.push(''); } + } +function program7(depth0,data) { + + + data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.optionView", {hash:{ + 'content': ("") + },hashTypes:{'content': "ID"},hashContexts:{'content': depth0},contexts:[depth0],types:["ID"],data:data}))); + } + + stack1 = helpers['if'].call(depth0, "view.prompt", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(1, program1, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + stack1 = helpers['if'].call(depth0, "view.optionGroupPath", {hash:{},hashTypes:{},hashContexts:{},inverse:self.program(6, program6, data),fn:self.program(3, program3, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + return buffer; + +}), + attributeBindings: ['multiple', 'disabled', 'tabindex', 'name', 'required', 'autofocus', + 'form', 'size'], + + /** + The `multiple` attribute of the select element. Indicates whether multiple + options can be selected. + + @property multiple + @type Boolean + @default false + */ + multiple: false, + + /** + The `disabled` attribute of the select element. Indicates whether + the element is disabled from interactions. + + @property disabled + @type Boolean + @default false + */ + disabled: false, + + /** + The `required` attribute of the select element. Indicates whether + a selected option is required for form validation. + + @property required + @type Boolean + @default false + */ + required: false, + + /** + The list of options. + + If `optionLabelPath` and `optionValuePath` are not overridden, this should + be a list of strings, which will serve simultaneously as labels and values. + + Otherwise, this should be a list of objects. For instance: + + ```javascript + Ember.Select.create({ + content: A([ + { id: 1, firstName: 'Yehuda' }, + { id: 2, firstName: 'Tom' } + ]), + optionLabelPath: 'content.firstName', + optionValuePath: 'content.id' + }); + ``` + + @property content + @type Array + @default null + */ + content: null, + + /** + When `multiple` is `false`, the element of `content` that is currently + selected, if any. + + When `multiple` is `true`, an array of such elements. + + @property selection + @type Object or Array + @default null + */ + selection: null, + + /** + In single selection mode (when `multiple` is `false`), value can be used to + get the current selection's value or set the selection by it's value. + + It is not currently supported in multiple selection mode. + + @property value + @type String + @default null + */ + value: computed(function(key, value) { + if (arguments.length === 2) { return value; } + var valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''); + return valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection'); + }).property('selection'), + + /** + If given, a top-most dummy option will be rendered to serve as a user + prompt. + + @property prompt + @type String + @default null + */ + prompt: null, + + /** + The path of the option labels. See [content](/api/classes/Ember.Select.html#property_content). + + @property optionLabelPath + @type String + @default 'content' + */ + optionLabelPath: 'content', + + /** + The path of the option values. See [content](/api/classes/Ember.Select.html#property_content). + + @property optionValuePath + @type String + @default 'content' + */ + optionValuePath: 'content', + + /** + The path of the option group. + When this property is used, `content` should be sorted by `optionGroupPath`. + + @property optionGroupPath + @type String + @default null + */ + optionGroupPath: null, + + /** + The view class for optgroup. + + @property groupView + @type Ember.View + @default Ember.SelectOptgroup + */ + groupView: SelectOptgroup, + + groupedContent: computed(function() { + var groupPath = get(this, 'optionGroupPath'); + var groupedContent = A(); + var content = get(this, 'content') || []; + + forEach(content, function(item) { + var label = get(item, groupPath); + + if (get(groupedContent, 'lastObject.label') !== label) { + groupedContent.pushObject({ + label: label, + content: A() + }); + } + + get(groupedContent, 'lastObject.content').push(item); + }); + + return groupedContent; + }).property('optionGroupPath', 'content.@each'), + + /** + The view class for option. + + @property optionView + @type Ember.View + @default Ember.SelectOption + */ + optionView: SelectOption, + + _change: function() { + if (get(this, 'multiple')) { + this._changeMultiple(); + } else { + this._changeSingle(); + } + }, + + selectionDidChange: observer('selection.@each', function() { + var selection = get(this, 'selection'); + if (get(this, 'multiple')) { + if (!isArray(selection)) { + set(this, 'selection', A([selection])); + return; + } + this._selectionDidChangeMultiple(); + } else { + this._selectionDidChangeSingle(); + } + }), + + valueDidChange: observer('value', function() { + var content = get(this, 'content'), + value = get(this, 'value'), + valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''), + selectedValue = (valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection')), + selection; + + if (value !== selectedValue) { + selection = content ? content.find(function(obj) { + return value === (valuePath ? get(obj, valuePath) : obj); + }) : null; + + this.set('selection', selection); + } + }), + + + _triggerChange: function() { + var selection = get(this, 'selection'); + var value = get(this, 'value'); + + if (!isNone(selection)) { this.selectionDidChange(); } + if (!isNone(value)) { this.valueDidChange(); } + + this._change(); + }, + + _changeSingle: function() { + var selectedIndex = this.$()[0].selectedIndex, + content = get(this, 'content'), + prompt = get(this, 'prompt'); + + if (!content || !get(content, 'length')) { return; } + if (prompt && selectedIndex === 0) { set(this, 'selection', null); return; } + + if (prompt) { selectedIndex -= 1; } + set(this, 'selection', content.objectAt(selectedIndex)); + }, + + + _changeMultiple: function() { + var options = this.$('option:selected'), + prompt = get(this, 'prompt'), + offset = prompt ? 1 : 0, + content = get(this, 'content'), + selection = get(this, 'selection'); + + if (!content) { return; } + if (options) { + var selectedIndexes = options.map(function() { + return this.index - offset; + }).toArray(); + var newSelection = content.objectsAt(selectedIndexes); + + if (isArray(selection)) { + replace(selection, 0, get(selection, 'length'), newSelection); + } else { + set(this, 'selection', newSelection); + } + } + }, + + _selectionDidChangeSingle: function() { + var el = this.get('element'); + if (!el) { return; } + + var content = get(this, 'content'), + selection = get(this, 'selection'), + selectionIndex = content ? indexOf(content, selection) : -1, + prompt = get(this, 'prompt'); + + if (prompt) { selectionIndex += 1; } + if (el) { el.selectedIndex = selectionIndex; } + }, + + _selectionDidChangeMultiple: function() { + var content = get(this, 'content'), + selection = get(this, 'selection'), + selectedIndexes = content ? indexesOf(content, selection) : [-1], + prompt = get(this, 'prompt'), + offset = prompt ? 1 : 0, + options = this.$('option'), + adjusted; + + if (options) { + options.each(function() { + adjusted = this.index > -1 ? this.index - offset : -1; + this.selected = indexOf(selectedIndexes, adjusted) > -1; + }); + } + }, + + init: function() { + this._super(); + this.on("didInsertElement", this, this._triggerChange); + this.on("change", this, this._change); + } + }); + + __exports__["default"] = Select + __exports__.Select = Select; + __exports__.SelectOption = SelectOption; + __exports__.SelectOptgroup = SelectOptgroup; + }); +define("ember-handlebars/controls/text_area", + ["ember-metal/property_get","ember-views/views/component","ember-handlebars/controls/text_support","ember-metal/mixin","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-handlebars + */ + var get = __dependency1__.get; + var Component = __dependency2__["default"]; + var TextSupport = __dependency3__["default"]; + var observer = __dependency4__.observer; + + /** + The internal class used to create textarea element when the `{{textarea}}` + helper is used. + + See [handlebars.helpers.textarea](/api/classes/Ember.Handlebars.helpers.html#method_textarea) for usage details. + + ## Layout and LayoutName properties + + Because HTML `textarea` elements do not contain inner HTML the `layout` and + `layoutName` properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class TextArea + @namespace Ember + @extends Ember.Component + @uses Ember.TextSupport + */ + var TextArea = Component.extend(TextSupport, { + classNames: ['ember-text-area'], + + tagName: "textarea", + attributeBindings: ['rows', 'cols', 'name', 'selectionEnd', 'selectionStart', 'wrap'], + rows: null, + cols: null, + + _updateElementValue: observer('value', function() { + // We do this check so cursor position doesn't get affected in IE + var value = get(this, 'value'), + $el = this.$(); + if ($el && value !== $el.val()) { + $el.val(value); + } + }), + + init: function() { + this._super(); + this.on("didInsertElement", this, this._updateElementValue); + } + + }); + + __exports__["default"] = TextArea; + }); +define("ember-handlebars/controls/text_field", + ["ember-metal/property_get","ember-metal/property_set","ember-views/views/component","ember-handlebars/controls/text_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var get = __dependency1__.get; + var set = __dependency2__.set; + var Component = __dependency3__["default"]; + var TextSupport = __dependency4__["default"]; + + /** + + The internal class used to create text inputs when the `{{input}}` + helper is used with `type` of `text`. + + See [Handlebars.helpers.input](/api/classes/Ember.Handlebars.helpers.html#method_input) for usage details. + + ## Layout and LayoutName properties + + Because HTML `input` elements are self closing `layout` and `layoutName` + properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class TextField + @namespace Ember + @extends Ember.Component + @uses Ember.TextSupport + */ + var TextField = Component.extend(TextSupport, { + + classNames: ['ember-text-field'], + tagName: "input", + attributeBindings: ['type', 'value', 'size', 'pattern', 'name', 'min', 'max', + 'accept', 'autocomplete', 'autosave', 'formaction', + 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', + 'height', 'inputmode', 'list', 'multiple', 'pattern', 'step', + 'width'], + + /** + The `value` attribute of the input element. As the user inputs text, this + property is updated live. + + @property value + @type String + @default "" + */ + value: "", + + /** + The `type` attribute of the input element. + + @property type + @type String + @default "text" + */ + type: "text", + + /** + The `size` of the text field in characters. + + @property size + @type String + @default null + */ + size: null, + + /** + The `pattern` attribute of input element. + + @property pattern + @type String + @default null + */ + pattern: null, + + /** + The `min` attribute of input element used with `type="number"` or `type="range"`. + + @property min + @type String + @default null + */ + min: null, + + /** + The `max` attribute of input element used with `type="number"` or `type="range"`. + + @property max + @type String + @default null + */ + max: null + }); + + __exports__["default"] = TextField; + }); +define("ember-handlebars/controls/text_support", + ["ember-metal/property_get","ember-metal/property_set","ember-metal/mixin","ember-runtime/mixins/target_action_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var get = __dependency1__.get; + var set = __dependency2__.set; + var Mixin = __dependency3__.Mixin; + var TargetActionSupport = __dependency4__["default"]; + + /** + Shared mixin used by `Ember.TextField` and `Ember.TextArea`. + + @class TextSupport + @namespace Ember + @uses Ember.TargetActionSupport + @extends Ember.Mixin + @private + */ + var TextSupport = Mixin.create(TargetActionSupport, { + value: "", + + attributeBindings: ['placeholder', 'disabled', 'maxlength', 'tabindex', 'readonly', + 'autofocus', 'form', 'selectionDirection', 'spellcheck', 'required', + 'title'], + placeholder: null, + disabled: false, + maxlength: null, + + init: function() { + this._super(); + this.on("focusOut", this, this._elementValueDidChange); + this.on("change", this, this._elementValueDidChange); + this.on("paste", this, this._elementValueDidChange); + this.on("cut", this, this._elementValueDidChange); + this.on("input", this, this._elementValueDidChange); + this.on("keyUp", this, this.interpretKeyEvents); + }, + + /** + The action to be sent when the user presses the return key. + + This is similar to the `{{action}}` helper, but is fired when + the user presses the return key when editing a text field, and sends + the value of the field as the context. + + @property action + @type String + @default null + */ + action: null, + + /** + The event that should send the action. + + Options are: + + * `enter`: the user pressed enter + * `keyPress`: the user pressed a key + + @property onEvent + @type String + @default enter + */ + onEvent: 'enter', + + /** + Whether they `keyUp` event that triggers an `action` to be sent continues + propagating to other views. + + By default, when the user presses the return key on their keyboard and + the text field has an `action` set, the action will be sent to the view's + controller and the key event will stop propagating. + + If you would like parent views to receive the `keyUp` event even after an + action has been dispatched, set `bubbles` to true. + + @property bubbles + @type Boolean + @default false + */ + bubbles: false, + + interpretKeyEvents: function(event) { + var map = TextSupport.KEY_EVENTS; + var method = map[event.keyCode]; + + this._elementValueDidChange(); + if (method) { return this[method](event); } + }, + + _elementValueDidChange: function() { + set(this, 'value', this.$().val()); + }, + + /** + The action to be sent when the user inserts a new line. + + Called by the `Ember.TextSupport` mixin on keyUp if keycode matches 13. + Uses sendAction to send the `enter` action to the controller. + + @method insertNewline + @param {Event} event + */ + insertNewline: function(event) { + sendAction('enter', this, event); + sendAction('insert-newline', this, event); + }, + + /** + Called when the user hits escape. + + Called by the `Ember.TextSupport` mixin on keyUp if keycode matches 27. + Uses sendAction to send the `escape-press` action to the controller. + + @method cancel + @param {Event} event + */ + cancel: function(event) { + sendAction('escape-press', this, event); + }, + + /** + Called when the text area is focused. + + @method focusIn + @param {Event} event + */ + focusIn: function(event) { + sendAction('focus-in', this, event); + }, + + /** + Called when the text area is blurred. + + @method focusOut + @param {Event} event + */ + focusOut: function(event) { + sendAction('focus-out', this, event); + }, + + /** + The action to be sent when the user presses a key. Enabled by setting + the `onEvent` property to `keyPress`. + + Uses sendAction to send the `keyPress` action to the controller. + + @method keyPress + @param {Event} event + */ + keyPress: function(event) { + sendAction('key-press', this, event); + } + + }); + + TextSupport.KEY_EVENTS = { + 13: 'insertNewline', + 27: 'cancel' + }; + + // In principle, this shouldn't be necessary, but the legacy + // sectionAction semantics for TextField are different from + // the component semantics so this method normalizes them. + function sendAction(eventName, view, event) { + var action = get(view, eventName), + on = get(view, 'onEvent'), + value = get(view, 'value'); + + // back-compat support for keyPress as an event name even though + // it's also a method name that consumes the event (and therefore + // incompatible with sendAction semantics). + if (on === eventName || (on === 'keyPress' && eventName === 'key-press')) { + view.sendAction('action', value); + } + + view.sendAction(eventName, value); + + if (action || on === eventName) { + if(!get(view, 'bubbles')) { + event.stopPropagation(); + } + } + } + + __exports__["default"] = TextSupport; + }); +define("ember-handlebars/ext", + ["ember-metal/core","ember-runtime/system/string","ember-handlebars-compiler","ember-metal/property_get","ember-metal/binding","ember-metal/error","ember-metal/mixin","ember-metal/is_empty","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.FEATURES, Ember.assert, Ember.Handlebars, Ember.lookup + // var emberAssert = Ember.assert; + + var fmt = __dependency2__.fmt; + + var EmberHandlebars = __dependency3__["default"]; + var helpers = EmberHandlebars.helpers; + + var get = __dependency4__.get; + var isGlobalPath = __dependency5__.isGlobalPath; + var EmberError = __dependency6__["default"]; + var IS_BINDING = __dependency7__.IS_BINDING; + + // late bound via requireModule because of circular dependencies. + var resolveHelper, + SimpleHandlebarsView; + + var isEmpty = __dependency8__["default"]; + + var slice = [].slice, originalTemplate = EmberHandlebars.template; + + /** + If a path starts with a reserved keyword, returns the root + that should be used. + + @private + @method normalizePath + @for Ember + @param root {Object} + @param path {String} + @param data {Hash} + */ + function normalizePath(root, path, data) { + var keywords = (data && data.keywords) || {}, + keyword, isKeyword; + + // Get the first segment of the path. For example, if the + // path is "foo.bar.baz", returns "foo". + keyword = path.split('.', 1)[0]; + + // Test to see if the first path is a keyword that has been + // passed along in the view's data hash. If so, we will treat + // that object as the new root. + if (keywords.hasOwnProperty(keyword)) { + // Look up the value in the template's data hash. + root = keywords[keyword]; + isKeyword = true; + + // Handle cases where the entire path is the reserved + // word. In that case, return the object itself. + if (path === keyword) { + path = ''; + } else { + // Strip the keyword from the path and look up + // the remainder from the newly found root. + path = path.substr(keyword.length+1); + } + } + + return { root: root, path: path, isKeyword: isKeyword }; + }; + + + /** + Lookup both on root and on window. If the path starts with + a keyword, the corresponding object will be looked up in the + template's data hash and used to resolve the path. + + @method get + @for Ember.Handlebars + @param {Object} root The object to look up the property on + @param {String} path The path to be lookedup + @param {Object} options The template's option hash + */ + function handlebarsGet(root, path, options) { + var data = options && options.data, + normalizedPath = normalizePath(root, path, data), + value; + + if (Ember.FEATURES.isEnabled("ember-handlebars-caps-lookup")) { + + // If the path starts with a capital letter, look it up on Ember.lookup, + // which defaults to the `window` object in browsers. + if (isGlobalPath(path)) { + value = get(Ember.lookup, path); + } else { + + // In cases where the path begins with a keyword, change the + // root to the value represented by that keyword, and ensure + // the path is relative to it. + value = get(normalizedPath.root, normalizedPath.path); + } + + } else { + root = normalizedPath.root; + path = normalizedPath.path; + + value = get(root, path); + + if (value === undefined && root !== Ember.lookup && isGlobalPath(path)) { + value = get(Ember.lookup, path); + } + } + + return value; + } + + /** + This method uses `Ember.Handlebars.get` to lookup a value, then ensures + that the value is escaped properly. + + If `unescaped` is a truthy value then the escaping will not be performed. + + @method getEscaped + @for Ember.Handlebars + @param {Object} root The object to look up the property on + @param {String} path The path to be lookedup + @param {Object} options The template's option hash + */ + function getEscaped(root, path, options) { + var result = handlebarsGet(root, path, options); + + if (result === null || result === undefined) { + result = ""; + } else if (!(result instanceof Handlebars.SafeString)) { + result = String(result); + } + if (!options.hash.unescaped){ + result = Handlebars.Utils.escapeExpression(result); + } + + return result; + }; + + function resolveParams(context, params, options) { + var resolvedParams = [], types = options.types, param, type; + + for (var i=0, l=params.length; i{{user.name}} + +
    +
    {{user.role.label}}
    + {{user.role.id}} + +

    {{user.role.description}}

    +
    + ``` + + `{{with}}` can be our best friend in these cases, + instead of writing `user.role.*` over and over, we use `{{#with user.role}}`. + Now the context within the `{{#with}} .. {{/with}}` block is `user.role` so you can do the following: + + ```handlebars +
    {{user.name}}
    + +
    + {{#with user.role}} +
    {{label}}
    + {{id}} + +

    {{description}}

    + {{/with}} +
    + ``` + + ### `as` operator + + This operator aliases the scope to a new name. It's helpful for semantic clarity and to retain + default scope or to reference from another `{{with}}` block. + + ```handlebars + // posts might not be + {{#with user.posts as blogPosts}} +
    + There are {{blogPosts.length}} blog posts written by {{user.name}}. +
    + + {{#each post in blogPosts}} +
  • {{post.title}}
    • + {{/each}} + {{/with}} + ``` + + Without the `as` operator, it would be impossible to reference `user.name` in the example above. + + NOTE: The alias should not reuse a name from the bound property path. + For example: `{{#with foo.bar as foo}}` is not supported because it attempts to alias using + the first part of the property path, `foo`. Instead, use `{{#with foo.bar as baz}}`. + + ### `controller` option + + Adding `controller='something'` instructs the `{{with}}` helper to create and use an instance of + the specified controller with the new context as its content. + + This is very similar to using an `itemController` option with the `{{each}}` helper. + + ```handlebars + {{#with users.posts controller='userBlogPosts'}} + {{!- The current context is wrapped in our controller instance }} + {{/with}} + ``` + + In the above example, the template provided to the `{{with}}` block is now wrapped in the + `userBlogPost` controller, which provides a very elegant way to decorate the context with custom + functions/properties. + + @method with + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function withHelper(context, options) { + if (arguments.length === 4) { + var keywordName, path, rootPath, normalized, contextPath; + + Ember.assert("If you pass more than one argument to the with helper, it must be in the form #with foo as bar", arguments[1] === "as"); + options = arguments[3]; + keywordName = arguments[2]; + path = arguments[0]; + + Ember.assert("You must pass a block to the with helper", options.fn && options.fn !== Handlebars.VM.noop); + + var localizedOptions = o_create(options); + localizedOptions.data = o_create(options.data); + localizedOptions.data.keywords = o_create(options.data.keywords || {}); + + if (isGlobalPath(path)) { + contextPath = path; + } else { + normalized = normalizePath(this, path, options.data); + path = normalized.path; + rootPath = normalized.root; + + // This is a workaround for the fact that you cannot bind separate objects + // together. When we implement that functionality, we should use it here. + var contextKey = jQuery.expando + guidFor(rootPath); + localizedOptions.data.keywords[contextKey] = rootPath; + // if the path is '' ("this"), just bind directly to the current context + contextPath = path ? contextKey + '.' + path : contextKey; + } + + emberBind(localizedOptions.data.keywords, keywordName, contextPath); + + return bind.call(this, path, localizedOptions, true, exists); + } else { + Ember.assert("You must pass exactly one argument to the with helper", arguments.length === 2); + Ember.assert("You must pass a block to the with helper", options.fn && options.fn !== Handlebars.VM.noop); + return helpers.bind.call(options.contexts[0], context, options); + } + } + + + /** + See [boundIf](/api/classes/Ember.Handlebars.helpers.html#method_boundIf) + and [unboundIf](/api/classes/Ember.Handlebars.helpers.html#method_unboundIf) + + @method if + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function ifHelper(context, options) { + Ember.assert("You must pass exactly one argument to the if helper", arguments.length === 2); + Ember.assert("You must pass a block to the if helper", options.fn && options.fn !== Handlebars.VM.noop); + if (options.data.isUnbound) { + return helpers.unboundIf.call(options.contexts[0], context, options); + } else { + return helpers.boundIf.call(options.contexts[0], context, options); + } + } + + /** + @method unless + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function unlessHelper(context, options) { + Ember.assert("You must pass exactly one argument to the unless helper", arguments.length === 2); + Ember.assert("You must pass a block to the unless helper", options.fn && options.fn !== Handlebars.VM.noop); + + var fn = options.fn, inverse = options.inverse; + + options.fn = inverse; + options.inverse = fn; + + if (options.data.isUnbound) { + return helpers.unboundIf.call(options.contexts[0], context, options); + } else { + return helpers.boundIf.call(options.contexts[0], context, options); + } + } + + /** + `bind-attr` allows you to create a binding between DOM element attributes and + Ember objects. For example: + + ```handlebars + imageTitle + ``` + + The above handlebars template will fill the ``'s `src` attribute will + the value of the property referenced with `"imageUrl"` and its `alt` + attribute with the value of the property referenced with `"imageTitle"`. + + If the rendering context of this template is the following object: + + ```javascript + { + imageUrl: 'http://lolcats.info/haz-a-funny', + imageTitle: 'A humorous image of a cat' + } + ``` + + The resulting HTML output will be: + + ```html + A humorous image of a cat + ``` + + `bind-attr` cannot redeclare existing DOM element attributes. The use of `src` + in the following `bind-attr` example will be ignored and the hard coded value + of `src="/failwhale.gif"` will take precedence: + + ```handlebars + imageTitle + ``` + + ### `bind-attr` and the `class` attribute + + `bind-attr` supports a special syntax for handling a number of cases unique + to the `class` DOM element attribute. The `class` attribute combines + multiple discrete values into a single attribute as a space-delimited + list of strings. Each string can be: + + * a string return value of an object's property. + * a boolean return value of an object's property + * a hard-coded value + + A string return value works identically to other uses of `bind-attr`. The + return value of the property will become the value of the attribute. For + example, the following view and template: + + ```javascript + AView = View.extend({ + someProperty: function() { + return "aValue"; + }.property() + }) + ``` + + ```handlebars + + ``` + + A boolean return value will insert a specified class name if the property + returns `true` and remove the class name if the property returns `false`. + + A class name is provided via the syntax + `somePropertyName:class-name-if-true`. + + ```javascript + AView = View.extend({ + someBool: true + }) + ``` + + ```handlebars + + ``` + + Result in the following rendered output: + + ```html + + ``` + + An additional section of the binding can be provided if you want to + replace the existing class instead of removing it when the boolean + value changes: + + ```handlebars + + ``` + + A hard-coded value can be used by prepending `:` to the desired + class name: `:class-name-to-always-apply`. + + ```handlebars + + ``` + + Results in the following rendered output: + + ```html + + ``` + + All three strategies - string return value, boolean return value, and + hard-coded value – can be combined in a single declaration: + + ```handlebars + + ``` + + @method bind-attr + @for Ember.Handlebars.helpers + @param {Hash} options + @return {String} HTML string + */ + function bindAttrHelper(options) { + var attrs = options.hash; + + Ember.assert("You must specify at least one hash argument to bind-attr", !!keys(attrs).length); + + var view = options.data.view; + var ret = []; + + // we relied on the behavior of calling without + // context to mean this === window, but when running + // "use strict", it's possible for this to === undefined; + var ctx = this || window; + + // Generate a unique id for this element. This will be added as a + // data attribute to the element so it can be looked up when + // the bound property changes. + var dataId = ++Ember.uuid; + + // Handle classes differently, as we can bind multiple classes + var classBindings = attrs['class']; + if (classBindings != null) { + var classResults = bindClasses(ctx, classBindings, view, dataId, options); + + ret.push('class="' + Handlebars.Utils.escapeExpression(classResults.join(' ')) + '"'); + delete attrs['class']; + } + + var attrKeys = keys(attrs); + + // For each attribute passed, create an observer and emit the + // current value of the property as an attribute. + forEach.call(attrKeys, function(attr) { + var path = attrs[attr], + normalized; + + Ember.assert(fmt("You must provide an expression as the value of bound attribute. You specified: %@=%@", [attr, path]), typeof path === 'string'); + + normalized = normalizePath(ctx, path, options.data); + + var value = (path === 'this') ? normalized.root : handlebarsGet(ctx, path, options), + type = typeOf(value); + + Ember.assert(fmt("Attributes must be numbers, strings or booleans, not %@", [value]), value === null || value === undefined || type === 'number' || type === 'string' || type === 'boolean'); + + var observer, invoker; + + observer = function observer() { + var result = handlebarsGet(ctx, path, options); + + Ember.assert(fmt("Attributes must be numbers, strings or booleans, not %@", [result]), + result === null || result === undefined || typeof result === 'number' || + typeof result === 'string' || typeof result === 'boolean'); + + var elem = view.$("[data-bindattr-" + dataId + "='" + dataId + "']"); + + // If we aren't able to find the element, it means the element + // to which we were bound has been removed from the view. + // In that case, we can assume the template has been re-rendered + // and we need to clean up the observer. + if (!elem || elem.length === 0) { + removeObserver(normalized.root, normalized.path, invoker); + return; + } + + View.applyAttributeBindings(elem, attr, result); + }; + + // Add an observer to the view for when the property changes. + // When the observer fires, find the element using the + // unique data id and update the attribute to the new value. + // Note: don't add observer when path is 'this' or path + // is whole keyword e.g. {{#each x in list}} ... {{bind-attr attr="x"}} + if (path !== 'this' && !(normalized.isKeyword && normalized.path === '' )) { + view.registerObserver(normalized.root, normalized.path, observer); + } + + // if this changes, also change the logic in ember-views/lib/views/view.js + if ((type === 'string' || (type === 'number' && !isNaN(value)))) { + ret.push(attr + '="' + Handlebars.Utils.escapeExpression(value) + '"'); + } else if (value && type === 'boolean') { + // The developer controls the attr name, so it should always be safe + ret.push(attr + '="' + attr + '"'); + } + }, this); + + // Add the unique identifier + // NOTE: We use all lower-case since Firefox has problems with mixed case in SVG + ret.push('data-bindattr-' + dataId + '="' + dataId + '"'); + return new SafeString(ret.join(' ')); + } + + /** + See `bind-attr` + + @method bindAttr + @for Ember.Handlebars.helpers + @deprecated + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function bindAttrHelperDeprecated() { + Ember.warn("The 'bindAttr' view helper is deprecated in favor of 'bind-attr'"); + return helpers['bind-attr'].apply(this, arguments); + } + + /** + Helper that, given a space-separated string of property paths and a context, + returns an array of class names. Calling this method also has the side + effect of setting up observers at those property paths, such that if they + change, the correct class name will be reapplied to the DOM element. + + For example, if you pass the string "fooBar", it will first look up the + "fooBar" value of the context. If that value is true, it will add the + "foo-bar" class to the current element (i.e., the dasherized form of + "fooBar"). If the value is a string, it will add that string as the class. + Otherwise, it will not add any new class name. + + @private + @method bindClasses + @for Ember.Handlebars + @param {Ember.Object} context The context from which to lookup properties + @param {String} classBindings A string, space-separated, of class bindings + to use + @param {View} view The view in which observers should look for the + element to update + @param {Srting} bindAttrId Optional bindAttr id used to lookup elements + @return {Array} An array of class names to add + */ + function bindClasses(context, classBindings, view, bindAttrId, options) { + var ret = [], newClass, value, elem; + + // Helper method to retrieve the property from the context and + // determine which class string to return, based on whether it is + // a Boolean or not. + var classStringForPath = function(root, parsedPath, options) { + var val, + path = parsedPath.path; + + if (path === 'this') { + val = root; + } else if (path === '') { + val = true; + } else { + val = handlebarsGet(root, path, options); + } + + return View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName); + }; + + // For each property passed, loop through and setup + // an observer. + forEach.call(classBindings.split(' '), function(binding) { + + // Variable in which the old class value is saved. The observer function + // closes over this variable, so it knows which string to remove when + // the property changes. + var oldClass; + + var observer, invoker; + + var parsedPath = View._parsePropertyPath(binding), + path = parsedPath.path, + pathRoot = context, + normalized; + + if (path !== '' && path !== 'this') { + normalized = normalizePath(context, path, options.data); + + pathRoot = normalized.root; + path = normalized.path; + } + + // Set up an observer on the context. If the property changes, toggle the + // class name. + observer = function() { + // Get the current value of the property + newClass = classStringForPath(context, parsedPath, options); + elem = bindAttrId ? view.$("[data-bindattr-" + bindAttrId + "='" + bindAttrId + "']") : view.$(); + + // If we can't find the element anymore, a parent template has been + // re-rendered and we've been nuked. Remove the observer. + if (!elem || elem.length === 0) { + removeObserver(pathRoot, path, invoker); + } else { + // If we had previously added a class to the element, remove it. + if (oldClass) { + elem.removeClass(oldClass); + } + + // If necessary, add a new class. Make sure we keep track of it so + // it can be removed in the future. + if (newClass) { + elem.addClass(newClass); + oldClass = newClass; + } else { + oldClass = null; + } + } + }; + + if (path !== '' && path !== 'this') { + view.registerObserver(pathRoot, path, observer); + } + + // We've already setup the observer; now we just need to figure out the + // correct behavior right now on the first pass through. + value = classStringForPath(context, parsedPath, options); + + if (value) { + ret.push(value); + + // Make sure we save the current value so that it can be removed if the + // observer fires. + oldClass = value; + } + }); + + return ret; + }; + + __exports__.bind = bind; + __exports__._triageMustacheHelper = _triageMustacheHelper; + __exports__.resolveHelper = resolveHelper; + __exports__.bindHelper = bindHelper; + __exports__.boundIfHelper = boundIfHelper; + __exports__.unboundIfHelper = unboundIfHelper; + __exports__.withHelper = withHelper; + __exports__.ifHelper = ifHelper; + __exports__.unlessHelper = unlessHelper; + __exports__.bindAttrHelper = bindAttrHelper; + __exports__.bindAttrHelperDeprecated = bindAttrHelperDeprecated; + __exports__.bindClasses = bindClasses; + }); +define("ember-handlebars/helpers/collection", + ["ember-metal/core","ember-metal/utils","ember-handlebars-compiler","ember-runtime/system/string","ember-metal/property_get","ember-handlebars/ext","ember-handlebars/helpers/view","ember-metal/computed","ember-views/views/collection_view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.deprecate + var inspect = __dependency2__.inspect; + + // var emberAssert = Ember.assert; + // emberDeprecate = Ember.deprecate; + + var EmberHandlebars = __dependency3__["default"]; + var helpers = EmberHandlebars.helpers; + + var fmt = __dependency4__.fmt; + var get = __dependency5__.get; + var handlebarsGet = __dependency6__.handlebarsGet; + var ViewHelper = __dependency7__.ViewHelper; + var computed = __dependency8__.computed; + var CollectionView = __dependency9__["default"]; + + var alias = computed.alias; + /** + `{{collection}}` is a `Ember.Handlebars` helper for adding instances of + `Ember.CollectionView` to a template. See [Ember.CollectionView](/api/classes/Ember.CollectionView.html) + for additional information on how a `CollectionView` functions. + + `{{collection}}`'s primary use is as a block helper with a `contentBinding` + option pointing towards an `Ember.Array`-compatible object. An `Ember.View` + instance will be created for each item in its `content` property. Each view + will have its own `content` property set to the appropriate item in the + collection. + + The provided block will be applied as the template for each item's view. + + Given an empty `` the following template: + + ```handlebars + {{#collection contentBinding="App.items"}} + Hi {{view.content.name}} + {{/collection}} + ``` + + And the following application code + + ```javascript + App = Ember.Application.create() + App.items = [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ] + ``` + + Will result in the HTML structure below + + ```html +
    +
    Hi Dave
    +
    Hi Mary
    +
    Hi Sara
    +
    + ``` + + ### Blockless use in a collection + + If you provide an `itemViewClass` option that has its own `template` you can + omit the block. + + The following template: + + ```handlebars + {{collection contentBinding="App.items" itemViewClass="App.AnItemView"}} + ``` + + And application code + + ```javascript + App = Ember.Application.create(); + App.items = [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ]; + + App.AnItemView = Ember.View.extend({ + template: Ember.Handlebars.compile("Greetings {{view.content.name}}") + }); + ``` + + Will result in the HTML structure below + + ```html +
    +
    Greetings Dave
    +
    Greetings Mary
    +
    Greetings Sara
    +
    + ``` + + ### Specifying a CollectionView subclass + + By default the `{{collection}}` helper will create an instance of + `Ember.CollectionView`. You can supply a `Ember.CollectionView` subclass to + the helper by passing it as the first argument: + + ```handlebars + {{#collection App.MyCustomCollectionClass contentBinding="App.items"}} + Hi {{view.content.name}} + {{/collection}} + ``` + + ### Forwarded `item.*`-named Options + + As with the `{{view}}`, helper options passed to the `{{collection}}` will be + set on the resulting `Ember.CollectionView` as properties. Additionally, + options prefixed with `item` will be applied to the views rendered for each + item (note the camelcasing): + + ```handlebars + {{#collection contentBinding="App.items" + itemTagName="p" + itemClassNames="greeting"}} + Howdy {{view.content.name}} + {{/collection}} + ``` + + Will result in the following HTML structure: + + ```html +
    +

    Howdy Dave

    +

    Howdy Mary

    +

    Howdy Sara

    +
    + ``` + + @method collection + @for Ember.Handlebars.helpers + @param {String} path + @param {Hash} options + @return {String} HTML string + @deprecated Use `{{each}}` helper instead. + */ + function collectionHelper(path, options) { + Ember.deprecate("Using the {{collection}} helper without specifying a class has been deprecated as the {{each}} helper now supports the same functionality.", path !== 'collection'); + + // If no path is provided, treat path param as options. + if (path && path.data && path.data.isRenderData) { + options = path; + path = undefined; + Ember.assert("You cannot pass more than one argument to the collection helper", arguments.length === 1); + } else { + Ember.assert("You cannot pass more than one argument to the collection helper", arguments.length === 2); + } + + var fn = options.fn; + var data = options.data; + var inverse = options.inverse; + var view = options.data.view; + + + var controller, container; + // If passed a path string, convert that into an object. + // Otherwise, just default to the standard class. + var collectionClass; + if (path) { + controller = data.keywords.controller; + container = controller && controller.container; + collectionClass = handlebarsGet(this, path, options) || container.lookupFactory('view:' + path); + Ember.assert(fmt("%@ #collection: Could not find collection class %@", [data.view, path]), !!collectionClass); + } + else { + collectionClass = CollectionView; + } + + var hash = options.hash, itemHash = {}, match; + + // Extract item view class if provided else default to the standard class + var collectionPrototype = collectionClass.proto(), itemViewClass; + + if (hash.itemView) { + controller = data.keywords.controller; + Ember.assert('You specified an itemView, but the current context has no ' + + 'container to look the itemView up in. This probably means ' + + 'that you created a view manually, instead of through the ' + + 'container. Instead, use container.lookup("view:viewName"), ' + + 'which will properly instantiate your view.', + controller && controller.container); + container = controller.container; + itemViewClass = container.lookupFactory('view:' + hash.itemView); + Ember.assert('You specified the itemView ' + hash.itemView + ", but it was " + + "not found at " + container.describe("view:" + hash.itemView) + + " (and it was not registered in the container)", !!itemViewClass); + } else if (hash.itemViewClass) { + itemViewClass = handlebarsGet(collectionPrototype, hash.itemViewClass, options); + } else { + itemViewClass = collectionPrototype.itemViewClass; + } + + Ember.assert(fmt("%@ #collection: Could not find itemViewClass %@", [data.view, itemViewClass]), !!itemViewClass); + + delete hash.itemViewClass; + delete hash.itemView; + + // Go through options passed to the {{collection}} helper and extract options + // that configure item views instead of the collection itself. + for (var prop in hash) { + if (hash.hasOwnProperty(prop)) { + match = prop.match(/^item(.)(.*)$/); + + if (match && prop !== 'itemController') { + // Convert itemShouldFoo -> shouldFoo + itemHash[match[1].toLowerCase() + match[2]] = hash[prop]; + // Delete from hash as this will end up getting passed to the + // {{view}} helper method. + delete hash[prop]; + } + } + } + + if (fn) { + itemHash.template = fn; + delete options.fn; + } + + var emptyViewClass; + if (inverse && inverse !== EmberHandlebars.VM.noop) { + emptyViewClass = get(collectionPrototype, 'emptyViewClass'); + emptyViewClass = emptyViewClass.extend({ + template: inverse, + tagName: itemHash.tagName + }); + } else if (hash.emptyViewClass) { + emptyViewClass = handlebarsGet(this, hash.emptyViewClass, options); + } + if (emptyViewClass) { hash.emptyView = emptyViewClass; } + + if (!hash.keyword) { + itemHash._context = alias('content'); + } + + var viewOptions = ViewHelper.propertiesFromHTMLOptions({ data: data, hash: itemHash }, this); + hash.itemViewClass = itemViewClass.extend(viewOptions); + + return helpers.view.call(this, collectionClass, options); + } + + __exports__["default"] = collectionHelper; + }); +define("ember-handlebars/helpers/debug", + ["ember-metal/core","ember-metal/utils","ember-metal/logger","ember-metal/property_get","ember-handlebars/ext","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + /*jshint debug:true*/ + + /** + @module ember + @submodule ember-handlebars + */ + var Ember = __dependency1__["default"]; + // Ember.FEATURES, + var inspect = __dependency2__.inspect; + var Logger = __dependency3__["default"]; + + var get = __dependency4__.get; + var normalizePath = __dependency5__.normalizePath; + var handlebarsGet = __dependency5__.handlebarsGet; + + var a_slice = [].slice; + + /** + `log` allows you to output the value of variables in the current rendering + context. `log` also accepts primitive types such as strings or numbers. + + ```handlebars + {{log "myVariable:" myVariable }} + ``` + + @method log + @for Ember.Handlebars.helpers + @param {String} property + */ + function logHelper() { + var params = a_slice.call(arguments, 0, -1), + options = arguments[arguments.length - 1], + logger = Logger.log, + values = [], + allowPrimitives = true; + + for (var i = 0; i < params.length; i++) { + var type = options.types[i]; + + if (type === 'ID' || !allowPrimitives) { + var context = (options.contexts && options.contexts[i]) || this, + normalized = normalizePath(context, params[i], options.data); + + if (normalized.path === 'this') { + values.push(normalized.root); + } else { + values.push(handlebarsGet(normalized.root, normalized.path, options)); + } + } else { + values.push(params[i]); + } + } + + logger.apply(logger, values); + }; + + /** + Execute the `debugger` statement in the current context. + + ```handlebars + {{debugger}} + ``` + + Before invoking the `debugger` statement, there + are a few helpful variables defined in the + body of this helper that you can inspect while + debugging that describe how and where this + helper was invoked: + + - templateContext: this is most likely a controller + from which this template looks up / displays properties + - typeOfTemplateContext: a string description of + what the templateContext is + + For example, if you're wondering why a value `{{foo}}` + isn't rendering as expected within a template, you + could place a `{{debugger}}` statement, and when + the `debugger;` breakpoint is hit, you can inspect + `templateContext`, determine if it's the object you + expect, and/or evaluate expressions in the console + to perform property lookups on the `templateContext`: + + ``` + > templateContext.get('foo') // -> "" + ``` + + @method debugger + @for Ember.Handlebars.helpers + @param {String} property + */ + function debuggerHelper(options) { + + // These are helpful values you can inspect while debugging. + var templateContext = this; + var typeOfTemplateContext = inspect(templateContext); + + debugger; + } + + __exports__.logHelper = logHelper; + __exports__.debuggerHelper = debuggerHelper; + }); +define("ember-handlebars/helpers/each", + ["ember-metal/core","ember-handlebars-compiler","ember-runtime/system/string","ember-metal/property_get","ember-metal/property_set","ember-handlebars/views/metamorph_view","ember-views/views/collection_view","ember-metal/binding","ember-runtime/controllers/controller","ember-runtime/controllers/array_controller","ember-runtime/mixins/array","ember-runtime/copy","ember-metal/run_loop","ember-metal/observer","ember-metal/events","ember-handlebars/ext","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __dependency16__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-handlebars + */ + var Ember = __dependency1__["default"]; + // Ember.assert;, Ember.K + // var emberAssert = Ember.assert, + var K = Ember.K; + + var EmberHandlebars = __dependency2__["default"]; + var helpers = EmberHandlebars.helpers; + + var fmt = __dependency3__.fmt; + var get = __dependency4__.get; + var set = __dependency5__.set; + var _Metamorph = __dependency6__._Metamorph; + var _MetamorphView = __dependency6__._MetamorphView; + var CollectionView = __dependency7__["default"]; + var Binding = __dependency8__.Binding; + var ControllerMixin = __dependency9__.ControllerMixin; + var ArrayController = __dependency10__["default"]; + var EmberArray = __dependency11__["default"]; + var copy = __dependency12__["default"]; + var run = __dependency13__["default"]; + var addObserver = __dependency14__.addObserver; + var removeObserver = __dependency14__.removeObserver; + var addBeforeObserver = __dependency14__.addBeforeObserver; + var removeBeforeObserver = __dependency14__.removeBeforeObserver; + var on = __dependency15__.on; + + var handlebarsGet = __dependency16__.handlebarsGet; + + var EachView = CollectionView.extend(_Metamorph, { + init: function() { + var itemController = get(this, 'itemController'); + var binding; + + if (itemController) { + var controller = get(this, 'controller.container').lookupFactory('controller:array').create({ + _isVirtual: true, + parentController: get(this, 'controller'), + itemController: itemController, + target: get(this, 'controller'), + _eachView: this + }); + + this.disableContentObservers(function() { + set(this, 'content', controller); + binding = new Binding('content', '_eachView.dataSource').oneWay(); + binding.connect(controller); + }); + + set(this, '_arrayController', controller); + } else { + this.disableContentObservers(function() { + binding = new Binding('content', 'dataSource').oneWay(); + binding.connect(this); + }); + } + + return this._super(); + }, + + _assertArrayLike: function(content) { + Ember.assert(fmt("The value that #each loops over must be an Array. You " + + "passed %@, but it should have been an ArrayController", + [content.constructor]), + !ControllerMixin.detect(content) || + (content && content.isGenerated) || + content instanceof ArrayController); + Ember.assert(fmt("The value that #each loops over must be an Array. You passed %@", [(ControllerMixin.detect(content) && content.get('model') !== undefined) ? fmt("'%@' (wrapped in %@)", [content.get('model'), content]) : content]), EmberArray.detect(content)); + }, + + disableContentObservers: function(callback) { + removeBeforeObserver(this, 'content', null, '_contentWillChange'); + removeObserver(this, 'content', null, '_contentDidChange'); + + callback.call(this); + + addBeforeObserver(this, 'content', null, '_contentWillChange'); + addObserver(this, 'content', null, '_contentDidChange'); + }, + + itemViewClass: _MetamorphView, + emptyViewClass: _MetamorphView, + + createChildView: function(view, attrs) { + view = this._super(view, attrs); + + // At the moment, if a container view subclass wants + // to insert keywords, it is responsible for cloning + // the keywords hash. This will be fixed momentarily. + var keyword = get(this, 'keyword'); + var content = get(view, 'content'); + + if (keyword) { + var data = get(view, 'templateData'); + + data = copy(data); + data.keywords = view.cloneKeywords(); + set(view, 'templateData', data); + + // In this case, we do not bind, because the `content` of + // a #each item cannot change. + data.keywords[keyword] = content; + } + + // If {{#each}} is looping over an array of controllers, + // point each child view at their respective controller. + if (content && content.isController) { + set(view, 'controller', content); + } + + return view; + }, + + destroy: function() { + if (!this._super()) { return; } + + var arrayController = get(this, '_arrayController'); + + if (arrayController) { + arrayController.destroy(); + } + + return this; + } + }); + + // Defeatureify doesn't seem to like nested functions that need to be removed + function _addMetamorphCheck() { + EachView.reopen({ + _checkMetamorph: on('didInsertElement', function() { + Ember.assert("The metamorph tags, " + + this.morph.start + " and " + this.morph.end + + ", have different parents.\nThe browser has fixed your template to output valid HTML (for example, check that you have properly closed all tags and have used a TBODY tag when creating a table with '{{#each}}')", + document.getElementById( this.morph.start ).parentNode === + document.getElementById( this.morph.end ).parentNode + ); + }) + }); + } + + // until ember-debug is es6ed + var runInDebug = function(f){f()}; + runInDebug( function() { + _addMetamorphCheck(); + }); + + var GroupedEach = EmberHandlebars.GroupedEach = function(context, path, options) { + var self = this, + normalized = EmberHandlebars.normalizePath(context, path, options.data); + + this.context = context; + this.path = path; + this.options = options; + this.template = options.fn; + this.containingView = options.data.view; + this.normalizedRoot = normalized.root; + this.normalizedPath = normalized.path; + this.content = this.lookupContent(); + + this.addContentObservers(); + this.addArrayObservers(); + + this.containingView.on('willClearRender', function() { + self.destroy(); + }); + }; + + GroupedEach.prototype = { + contentWillChange: function() { + this.removeArrayObservers(); + }, + + contentDidChange: function() { + this.content = this.lookupContent(); + this.addArrayObservers(); + this.rerenderContainingView(); + }, + + contentArrayWillChange: K, + + contentArrayDidChange: function() { + this.rerenderContainingView(); + }, + + lookupContent: function() { + return handlebarsGet(this.normalizedRoot, this.normalizedPath, this.options); + }, + + addArrayObservers: function() { + if (!this.content) { return; } + + this.content.addArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + }, + + removeArrayObservers: function() { + if (!this.content) { return; } + + this.content.removeArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + }, + + addContentObservers: function() { + addBeforeObserver(this.normalizedRoot, this.normalizedPath, this, this.contentWillChange); + addObserver(this.normalizedRoot, this.normalizedPath, this, this.contentDidChange); + }, + + removeContentObservers: function() { + removeBeforeObserver(this.normalizedRoot, this.normalizedPath, this.contentWillChange); + removeObserver(this.normalizedRoot, this.normalizedPath, this.contentDidChange); + }, + + render: function() { + if (!this.content) { return; } + + var content = this.content, + contentLength = get(content, 'length'), + data = this.options.data, + template = this.template; + + data.insideEach = true; + for (var i = 0; i < contentLength; i++) { + template(content.objectAt(i), { data: data }); + } + }, + + rerenderContainingView: function() { + var self = this; + run.scheduleOnce('render', this, function() { + // It's possible it's been destroyed after we enqueued a re-render call. + if (!self.destroyed) { + self.containingView.rerender(); + } + }); + }, + + destroy: function() { + this.removeContentObservers(); + if (this.content) { + this.removeArrayObservers(); + } + this.destroyed = true; + } + }; + + /** + The `{{#each}}` helper loops over elements in a collection, rendering its + block once for each item. It is an extension of the base Handlebars `{{#each}}` + helper: + + ```javascript + Developers = [{name: 'Yehuda'},{name: 'Tom'}, {name: 'Paul'}]; + ``` + + ```handlebars + {{#each Developers}} + {{name}} + {{/each}} + ``` + + `{{each}}` supports an alternative syntax with element naming: + + ```handlebars + {{#each person in Developers}} + {{person.name}} + {{/each}} + ``` + + When looping over objects that do not have properties, `{{this}}` can be used + to render the object: + + ```javascript + DeveloperNames = ['Yehuda', 'Tom', 'Paul'] + ``` + + ```handlebars + {{#each DeveloperNames}} + {{this}} + {{/each}} + ``` + ### {{else}} condition + `{{#each}}` can have a matching `{{else}}`. The contents of this block will render + if the collection is empty. + + ``` + {{#each person in Developers}} + {{person.name}} + {{else}} +

    Sorry, nobody is available for this task.

    + {{/each}} + ``` + ### Specifying a View class for items + If you provide an `itemViewClass` option that references a view class + with its own `template` you can omit the block. + + The following template: + + ```handlebars + {{#view App.MyView }} + {{each view.items itemViewClass="App.AnItemView"}} + {{/view}} + ``` + + And application code + + ```javascript + App = Ember.Application.create({ + MyView: Ember.View.extend({ + items: [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ] + }) + }); + + App.AnItemView = Ember.View.extend({ + template: Ember.Handlebars.compile("Greetings {{name}}") + }); + ``` + + Will result in the HTML structure below + + ```html +
    +
    Greetings Dave
    +
    Greetings Mary
    +
    Greetings Sara
    +
    + ``` + + If an `itemViewClass` is defined on the helper, and therefore the helper is not + being used as a block, an `emptyViewClass` can also be provided optionally. + The `emptyViewClass` will match the behavior of the `{{else}}` condition + described above. That is, the `emptyViewClass` will render if the collection + is empty. + + ### Representing each item with a Controller. + By default the controller lookup within an `{{#each}}` block will be + the controller of the template where the `{{#each}}` was used. If each + item needs to be presented by a custom controller you can provide a + `itemController` option which references a controller by lookup name. + Each item in the loop will be wrapped in an instance of this controller + and the item itself will be set to the `content` property of that controller. + + This is useful in cases where properties of model objects need transformation + or synthesis for display: + + ```javascript + App.DeveloperController = Ember.ObjectController.extend({ + isAvailableForHire: function() { + return !this.get('content.isEmployed') && this.get('content.isSeekingWork'); + }.property('isEmployed', 'isSeekingWork') + }) + ``` + + ```handlebars + {{#each person in developers itemController="developer"}} + {{person.name}} {{#if person.isAvailableForHire}}Hire me!{{/if}} + {{/each}} + ``` + + Each itemController will receive a reference to the current controller as + a `parentController` property. + + ### (Experimental) Grouped Each + + When used in conjunction with the experimental [group helper](https://github.com/emberjs/group-helper), + you can inform Handlebars to re-render an entire group of items instead of + re-rendering them one at a time (in the event that they are changed en masse + or an item is added/removed). + + ```handlebars + {{#group}} + {{#each people}} + {{firstName}} {{lastName}} + {{/each}} + {{/group}} + ``` + + This can be faster than the normal way that Handlebars re-renders items + in some cases. + + If for some reason you have a group with more than one `#each`, you can make + one of the collections be updated in normal (non-grouped) fashion by setting + the option `groupedRows=true` (counter-intuitive, I know). + + For example, + + ```handlebars + {{dealershipName}} + + {{#group}} + {{#each dealers}} + {{firstName}} {{lastName}} + {{/each}} + + {{#each car in cars groupedRows=true}} + {{car.make}} {{car.model}} {{car.color}} + {{/each}} + {{/group}} + ``` + Any change to `dealershipName` or the `dealers` collection will cause the + entire group to be re-rendered. However, changes to the `cars` collection + will be re-rendered individually (as normal). + + Note that `group` behavior is also disabled by specifying an `itemViewClass`. + + @method each + @for Ember.Handlebars.helpers + @param [name] {String} name for item (used with `in`) + @param [path] {String} path + @param [options] {Object} Handlebars key/value pairs of options + @param [options.itemViewClass] {String} a path to a view class used for each item + @param [options.itemController] {String} name of a controller to be created for each item + @param [options.groupedRows] {boolean} enable normal item-by-item rendering when inside a `#group` helper + */ + function eachHelper(path, options) { + var ctx; + + if (arguments.length === 4) { + Ember.assert("If you pass more than one argument to the each helper, it must be in the form #each foo in bar", arguments[1] === "in"); + + var keywordName = arguments[0]; + + options = arguments[3]; + path = arguments[2]; + if (path === '') { path = "this"; } + + options.hash.keyword = keywordName; + } + + if (arguments.length === 1) { + options = path; + path = 'this'; + } + + options.hash.dataSourceBinding = path; + // Set up emptyView as a metamorph with no tag + //options.hash.emptyViewClass = Ember._MetamorphView; + + // can't rely on this default behavior when use strict + ctx = this || window; + if (options.data.insideGroup && !options.hash.groupedRows && !options.hash.itemViewClass) { + new GroupedEach(ctx, path, options).render(); + } else { + // ES6TODO: figure out how to do this without global lookup. + return helpers.collection.call(ctx, 'Ember.Handlebars.EachView', options); + } + } + + __exports__.EachView = EachView; + __exports__.GroupedEach = GroupedEach; + __exports__.eachHelper = eachHelper; + }); +define("ember-handlebars/helpers/loc", + ["ember-runtime/system/string","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var loc = __dependency1__.loc; + + /** + @module ember + @submodule ember-handlebars + */ + + // ES6TODO: + // Pretty sure this can be expressed as + // var locHelper EmberStringUtils.loc ? + + /** + `loc` looks up the string in the localized strings hash. + This is a convenient way to localize text. For example: + + ```html + + ``` + + Take note that `"welcome"` is a string and not an object + reference. + + @method loc + @for Ember.Handlebars.helpers + @param {String} str The string to format + */ + function locHelper(str) { + return loc(str); + } + + __exports__["default"] = locHelper; + }); +define("ember-handlebars/helpers/partial", + ["ember-metal/core","ember-metal/is_none","ember-handlebars/ext","ember-handlebars/helpers/binding","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert + // var emberAssert = Ember.assert; + + var isNone = __dependency2__.isNone; + var handlebarsGet = __dependency3__.handlebarsGet; + var bind = __dependency4__.bind; + + /** + @module ember + @submodule ember-handlebars + */ + + /** + The `partial` helper renders another template without + changing the template context: + + ```handlebars + {{foo}} + {{partial "nav"}} + ``` + + The above example template will render a template named + "_nav", which has the same context as the parent template + it's rendered into, so if the "_nav" template also referenced + `{{foo}}`, it would print the same thing as the `{{foo}}` + in the above example. + + If a "_nav" template isn't found, the `partial` helper will + fall back to a template named "nav". + + ## Bound template names + + The parameter supplied to `partial` can also be a path + to a property containing a template name, e.g.: + + ```handlebars + {{partial someTemplateName}} + ``` + + The above example will look up the value of `someTemplateName` + on the template context (e.g. a controller) and use that + value as the name of the template to render. If the resolved + value is falsy, nothing will be rendered. If `someTemplateName` + changes, the partial will be re-rendered using the new template + name. + + ## Setting the partial's context with `with` + + The `partial` helper can be used in conjunction with the `with` + helper to set a context that will be used by the partial: + + ```handlebars + {{#with currentUser}} + {{partial "user_info"}} + {{/with}} + ``` + + @method partial + @for Ember.Handlebars.helpers + @param {String} partialName the name of the template to render minus the leading underscore + */ + + function partialHelper(name, options) { + + var context = (options.contexts && options.contexts.length) ? options.contexts[0] : this; + + if (options.types[0] === "ID") { + // Helper was passed a property path; we need to + // create a binding that will re-render whenever + // this property changes. + options.fn = function(context, fnOptions) { + var partialName = handlebarsGet(context, name, fnOptions); + renderPartial(context, partialName, fnOptions); + }; + + return bind.call(context, name, options, true, exists); + } else { + // Render the partial right into parent template. + renderPartial(context, name, options); + } + } + + function exists(value) { + return !isNone(value); + } + + function renderPartial(context, name, options) { + var nameParts = name.split("/"), + lastPart = nameParts[nameParts.length - 1]; + + nameParts[nameParts.length - 1] = "_" + lastPart; + + var view = options.data.view, + underscoredName = nameParts.join("/"), + template = view.templateForName(underscoredName), + deprecatedTemplate = !template && view.templateForName(name); + + Ember.assert("Unable to find partial with name '"+name+"'.", template || deprecatedTemplate); + + template = template || deprecatedTemplate; + + template(context, { data: options.data }); + } + + __exports__["default"] = partialHelper; + }); +define("ember-handlebars/helpers/shared", + ["ember-handlebars/ext","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var handlebarsGet = __dependency1__.handlebarsGet; + + function resolvePaths(options) { + var ret = [], + contexts = options.contexts, + roots = options.roots, + data = options.data; + + for (var i=0, l=contexts.length; i + {{#with loggedInUser}} + Last Login: {{lastLogin}} + User Info: {{template "user_info"}} + {{/with}} + + ``` + + ```html + + ``` + + ```handlebars + {{#if isUser}} + {{template "user_info"}} + {{else}} + {{template "unlogged_user_info"}} + {{/if}} + ``` + + This helper looks for templates in the global `Ember.TEMPLATES` hash. If you + add `",""===e.firstChild.innerHTML}()),i="undefined"!=typeof document&&function(){var e=document.createElement("div");return e.innerHTML="Test: Value","Test:"===e.childNodes[0].nodeValue&&" Value"===e.childNodes[2].nodeValue}(),a=function(e,t){if(e.getAttribute("id")===t)return e;var r,n,i,o=e.childNodes.length;for(r=0;o>r;r++)if(n=e.childNodes[r],i=1===n.nodeType&&a(n,t))return i},o=function(e,t){n&&(t="­"+t);var r=[];if(i&&(t=t.replace(/(\s+)(",""===e.firstChild.innerHTML}(),a=document&&function(){var e=document.createElement("div");return e.innerHTML="Test: Value","Test:"===e.childNodes[0].nodeValue&&" Value"===e.childNodes[2].nodeValue}(),o=function(r){var n;n=this instanceof o?this:new e,n.innerHTML=r;var i="metamorph-"+t++;return n.start=i+"-start",n.end=i+"-end",n};e.prototype=o.prototype;var s,l,u,c,h,m,p,f,d;if(c=function(){return this.startTag()+this.innerHTML+this.endTag()},f=function(){return""},d=function(){return""},n)s=function(e,t){var r=document.createRange(),n=document.getElementById(e.start),i=document.getElementById(e.end);return t?(r.setStartBefore(n),r.setEndAfter(i)):(r.setStartAfter(n),r.setEndBefore(i)),r},l=function(e,t){var r=s(this,t);r.deleteContents();var n=r.createContextualFragment(e);r.insertNode(n)},u=function(){var e=s(this,!0);e.deleteContents()},h=function(e){var t=document.createRange();t.setStart(e),t.collapse(!1);var r=t.createContextualFragment(this.outerHTML());e.appendChild(r)},m=function(e){var t=document.createRange(),r=document.getElementById(this.end);t.setStartAfter(r),t.setEndAfter(r);var n=t.createContextualFragment(e);t.insertNode(n)},p=function(e){var t=document.createRange(),r=document.getElementById(this.start);t.setStartAfter(r),t.setEndAfter(r);var n=t.createContextualFragment(e);t.insertNode(n)};else{var g={select:[1,""],fieldset:[1,"
    ","
    "],table:[1,"","
    "],tbody:[2,"","
    "],tr:[3,"","
    "],colgroup:[2,"","
    "],map:[1,"",""],_default:[0,"",""]},v=function(e,t){if(e.getAttribute("id")===t)return e;var r,n,i,a=e.childNodes.length;for(r=0;a>r;r++)if(n=e.childNodes[r],i=1===n.nodeType&&v(n,t))return i},b=function(e,t){var r=[];if(a&&(t=t.replace(/(\s+)("; + return testEl.firstChild.innerHTML === ''; + })(); + + // IE 8 (and likely earlier) likes to move whitespace preceeding + // a script tag to appear after it. This means that we can + // accidentally remove whitespace when updating a morph. + var movesWhitespace = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "Test: Value"; + return testEl.childNodes[0].nodeValue === 'Test:' && + testEl.childNodes[2].nodeValue === ' Value'; + })(); + + // Use this to find children by ID instead of using jQuery + var findChildById = function(element, id) { + if (element.getAttribute('id') === id) { return element; } + + var len = element.childNodes.length, idx, node, found; + for (idx=0; idx 0) { + var len = matches.length, idx; + for (idx=0; idxTest'); + canSet = el.options.length === 1; + } + + innerHTMLTags[tagName] = canSet; + + return canSet; + }; + + var setInnerHTML = function(element, html) { + var tagName = element.tagName; + + if (canSetInnerHTML(tagName)) { + setInnerHTMLWithoutFix(element, html); + } else { + // Firefox versions < 11 do not have support for element.outerHTML. + var outerHTML = element.outerHTML || new XMLSerializer().serializeToString(element); + + var startTag = outerHTML.match(new RegExp("<"+tagName+"([^>]*)>", 'i'))[0], + endTag = ''; + + var wrapper = document.createElement('div'); + setInnerHTMLWithoutFix(wrapper, startTag + html + endTag); + element = wrapper.firstChild; + while (element.tagName !== tagName) { + element = element.nextSibling; + } + } + + return element; + }; + + function isSimpleClick(event) { + var modifier = event.shiftKey || event.metaKey || event.altKey || event.ctrlKey, + secondaryClick = event.which > 1; // IE9 may return undefined + + return !modifier && !secondaryClick; + } + + __exports__.setInnerHTML = setInnerHTML; + __exports__.isSimpleClick = isSimpleClick; + }); +define("ember-views/views/collection_view", + ["ember-metal/core","ember-metal/platform","ember-metal/merge","ember-metal/property_get","ember-metal/property_set","ember-runtime/system/string","ember-views/views/container_view","ember-views/views/view","ember-metal/mixin","ember-runtime/mixins/array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-views + */ + + var Ember = __dependency1__["default"]; + // Ember.assert + var create = __dependency2__.create; + var merge = __dependency3__["default"]; + var get = __dependency4__.get; + var set = __dependency5__.set; + var fmt = __dependency6__.fmt; + var ContainerView = __dependency7__["default"]; + var CoreView = __dependency8__.CoreView; + var View = __dependency8__.View; + var observer = __dependency9__.observer; + var beforeObserver = __dependency9__.beforeObserver; + var EmberArray = __dependency10__["default"]; + + /** + `Ember.CollectionView` is an `Ember.View` descendent responsible for managing + a collection (an array or array-like object) by maintaining a child view object + and associated DOM representation for each item in the array and ensuring + that child views and their associated rendered HTML are updated when items in + the array are added, removed, or replaced. + + ## Setting content + + The managed collection of objects is referenced as the `Ember.CollectionView` + instance's `content` property. + + ```javascript + someItemsView = Ember.CollectionView.create({ + content: ['A', 'B','C'] + }) + ``` + + The view for each item in the collection will have its `content` property set + to the item. + + ## Specifying itemViewClass + + By default the view class for each item in the managed collection will be an + instance of `Ember.View`. You can supply a different class by setting the + `CollectionView`'s `itemViewClass` property. + + Given an empty `` and the following code: + + ```javascript + someItemsView = Ember.CollectionView.create({ + classNames: ['a-collection'], + content: ['A','B','C'], + itemViewClass: Ember.View.extend({ + template: Ember.Handlebars.compile("the letter: {{view.content}}") + }) + }); + + someItemsView.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
    +
    the letter: A
    +
    the letter: B
    +
    the letter: C
    +
    + ``` + + ## Automatic matching of parent/child tagNames + + Setting the `tagName` property of a `CollectionView` to any of + "ul", "ol", "table", "thead", "tbody", "tfoot", "tr", or "select" will result + in the item views receiving an appropriately matched `tagName` property. + + Given an empty `` and the following code: + + ```javascript + anUnorderedListView = Ember.CollectionView.create({ + tagName: 'ul', + content: ['A','B','C'], + itemViewClass: Ember.View.extend({ + template: Ember.Handlebars.compile("the letter: {{view.content}}") + }) + }); + + anUnorderedListView.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
      +
    • the letter: A
      • +
    • the letter: B
      • +
    • the letter: C
      • +
    + ``` + + Additional `tagName` pairs can be provided by adding to + `Ember.CollectionView.CONTAINER_MAP ` + + ```javascript + Ember.CollectionView.CONTAINER_MAP['article'] = 'section' + ``` + + ## Programmatic creation of child views + + For cases where additional customization beyond the use of a single + `itemViewClass` or `tagName` matching is required CollectionView's + `createChildView` method can be overidden: + + ```javascript + CustomCollectionView = Ember.CollectionView.extend({ + createChildView: function(viewClass, attrs) { + if (attrs.content.kind == 'album') { + viewClass = App.AlbumView; + } else { + viewClass = App.SongView; + } + return this._super(viewClass, attrs); + } + }); + ``` + + ## Empty View + + You can provide an `Ember.View` subclass to the `Ember.CollectionView` + instance as its `emptyView` property. If the `content` property of a + `CollectionView` is set to `null` or an empty array, an instance of this view + will be the `CollectionView`s only child. + + ```javascript + aListWithNothing = Ember.CollectionView.create({ + classNames: ['nothing'] + content: null, + emptyView: Ember.View.extend({ + template: Ember.Handlebars.compile("The collection is empty") + }) + }); + + aListWithNothing.appendTo('body'); + ``` + + Will result in the following HTML structure + + ```html +
    +
    + The collection is empty +
    +
    + ``` + + ## Adding and Removing items + + The `childViews` property of a `CollectionView` should not be directly + manipulated. Instead, add, remove, replace items from its `content` property. + This will trigger appropriate changes to its rendered HTML. + + + @class CollectionView + @namespace Ember + @extends Ember.ContainerView + @since Ember 0.9 + */ + var CollectionView = ContainerView.extend({ + + /** + A list of items to be displayed by the `Ember.CollectionView`. + + @property content + @type Ember.Array + @default null + */ + content: null, + + /** + This provides metadata about what kind of empty view class this + collection would like if it is being instantiated from another + system (like Handlebars) + + @private + @property emptyViewClass + */ + emptyViewClass: View, + + /** + An optional view to display if content is set to an empty array. + + @property emptyView + @type Ember.View + @default null + */ + emptyView: null, + + /** + @property itemViewClass + @type Ember.View + @default Ember.View + */ + itemViewClass: View, + + /** + Setup a CollectionView + + @method init + */ + init: function() { + var ret = this._super(); + this._contentDidChange(); + return ret; + }, + + /** + Invoked when the content property is about to change. Notifies observers that the + entire array content will change. + + @private + @method _contentWillChange + */ + _contentWillChange: beforeObserver('content', function() { + var content = this.get('content'); + + if (content) { content.removeArrayObserver(this); } + var len = content ? get(content, 'length') : 0; + this.arrayWillChange(content, 0, len); + }), + + /** + Check to make sure that the content has changed, and if so, + update the children directly. This is always scheduled + asynchronously, to allow the element to be created before + bindings have synchronized and vice versa. + + @private + @method _contentDidChange + */ + _contentDidChange: observer('content', function() { + var content = get(this, 'content'); + + if (content) { + this._assertArrayLike(content); + content.addArrayObserver(this); + } + + var len = content ? get(content, 'length') : 0; + this.arrayDidChange(content, 0, null, len); + }), + + /** + Ensure that the content implements Ember.Array + + @private + @method _assertArrayLike + */ + _assertArrayLike: function(content) { + }, + + /** + Removes the content and content observers. + + @method destroy + */ + destroy: function() { + if (!this._super()) { return; } + + var content = get(this, 'content'); + if (content) { content.removeArrayObserver(this); } + + if (this._createdEmptyView) { + this._createdEmptyView.destroy(); + } + + return this; + }, + + /** + Called when a mutation to the underlying content array will occur. + + This method will remove any views that are no longer in the underlying + content array. + + Invokes whenever the content array itself will change. + + @method arrayWillChange + @param {Array} content the managed collection of objects + @param {Number} start the index at which the changes will occurr + @param {Number} removed number of object to be removed from content + */ + arrayWillChange: function(content, start, removedCount) { + // If the contents were empty before and this template collection has an + // empty view remove it now. + var emptyView = get(this, 'emptyView'); + if (emptyView && emptyView instanceof View) { + emptyView.removeFromParent(); + } + + // Loop through child views that correspond with the removed items. + // Note that we loop from the end of the array to the beginning because + // we are mutating it as we go. + var childViews = this._childViews, childView, idx, len; + + len = this._childViews.length; + + var removingAll = removedCount === len; + + if (removingAll) { + this.currentState.empty(this); + this.invokeRecursively(function(view) { + view.removedFromDOM = true; + }, false); + } + + for (idx = start + removedCount - 1; idx >= start; idx--) { + childView = childViews[idx]; + childView.destroy(); + } + }, + + /** + Called when a mutation to the underlying content array occurs. + + This method will replay that mutation against the views that compose the + `Ember.CollectionView`, ensuring that the view reflects the model. + + This array observer is added in `contentDidChange`. + + @method arrayDidChange + @param {Array} content the managed collection of objects + @param {Number} start the index at which the changes occurred + @param {Number} removed number of object removed from content + @param {Number} added number of object added to content + */ + arrayDidChange: function(content, start, removed, added) { + var addedViews = [], view, item, idx, len, itemViewClass, + emptyView; + + len = content ? get(content, 'length') : 0; + + if (len) { + itemViewClass = get(this, 'itemViewClass'); + + if ('string' === typeof itemViewClass) { + itemViewClass = get(itemViewClass) || itemViewClass; + } + + + for (idx = start; idx < start+added; idx++) { + item = content.objectAt(idx); + + view = this.createChildView(itemViewClass, { + content: item, + contentIndex: idx + }); + + addedViews.push(view); + } + } else { + emptyView = get(this, 'emptyView'); + + if (!emptyView) { return; } + + if ('string' === typeof emptyView) { + emptyView = get(emptyView) || emptyView; + } + + emptyView = this.createChildView(emptyView); + addedViews.push(emptyView); + set(this, 'emptyView', emptyView); + + if (CoreView.detect(emptyView)) { + this._createdEmptyView = emptyView; + } + } + + this.replace(start, 0, addedViews); + }, + + /** + Instantiates a view to be added to the childViews array during view + initialization. You generally will not call this method directly unless + you are overriding `createChildViews()`. Note that this method will + automatically configure the correct settings on the new view instance to + act as a child of the parent. + + The tag name for the view will be set to the tagName of the viewClass + passed in. + + @method createChildView + @param {Class} viewClass + @param {Hash} [attrs] Attributes to add + @return {Ember.View} new instance + */ + createChildView: function(view, attrs) { + view = this._super(view, attrs); + + var itemTagName = get(view, 'tagName'); + + if (itemTagName === null || itemTagName === undefined) { + itemTagName = CollectionView.CONTAINER_MAP[get(this, 'tagName')]; + set(view, 'tagName', itemTagName); + } + + return view; + } + }); + + /** + A map of parent tags to their default child tags. You can add + additional parent tags if you want collection views that use + a particular parent tag to default to a child tag. + + @property CONTAINER_MAP + @type Hash + @static + @final + */ + CollectionView.CONTAINER_MAP = { + ul: 'li', + ol: 'li', + table: 'tr', + thead: 'tr', + tbody: 'tr', + tfoot: 'tr', + tr: 'td', + select: 'option' + }; + + __exports__["default"] = CollectionView; + }); +define("ember-views/views/component", + ["ember-metal/core","ember-views/mixins/component_template_deprecation","ember-runtime/mixins/target_action_support","ember-views/views/view","ember-metal/property_get","ember-metal/property_set","ember-metal/is_none","ember-metal/computed","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.Handlebars + + var ComponentTemplateDeprecation = __dependency2__["default"]; + var TargetActionSupport = __dependency3__["default"]; + var View = __dependency4__.View;var get = __dependency5__.get; + var set = __dependency6__.set; + var isNone = __dependency7__.isNone; + + var computed = __dependency8__.computed; + + var a_slice = Array.prototype.slice; + + /** + @module ember + @submodule ember-views + */ + + /** + An `Ember.Component` is a view that is completely + isolated. Property access in its templates go + to the view object and actions are targeted at + the view object. There is no access to the + surrounding context or outer controller; all + contextual information must be passed in. + + The easiest way to create an `Ember.Component` is via + a template. If you name a template + `components/my-foo`, you will be able to use + `{{my-foo}}` in other templates, which will make + an instance of the isolated component. + + ```handlebars + {{app-profile person=currentUser}} + ``` + + ```handlebars + +

    {{person.title}}

    + +

    {{person.signature}}

    + ``` + + You can use `yield` inside a template to + include the **contents** of any block attached to + the component. The block will be executed in the + context of the surrounding context or outer controller: + + ```handlebars + {{#app-profile person=currentUser}} +

    Admin mode

    + {{! Executed in the controller's context. }} + {{/app-profile}} + ``` + + ```handlebars + +

    {{person.title}}

    + {{! Executed in the components context. }} + {{yield}} {{! block contents }} + ``` + + If you want to customize the component, in order to + handle events or actions, you implement a subclass + of `Ember.Component` named after the name of the + component. Note that `Component` needs to be appended to the name of + your subclass like `AppProfileComponent`. + + For example, you could implement the action + `hello` for the `app-profile` component: + + ```javascript + App.AppProfileComponent = Ember.Component.extend({ + actions: { + hello: function(name) { + console.log("Hello", name); + } + } + }); + ``` + + And then use it in the component's template: + + ```handlebars + + +

    {{person.title}}

    + {{yield}} + + + ``` + + Components must have a `-` in their name to avoid + conflicts with built-in controls that wrap HTML + elements. This is consistent with the same + requirement in web components. + + @class Component + @namespace Ember + @extends Ember.View + */ + var Component = View.extend(TargetActionSupport, ComponentTemplateDeprecation, { + init: function() { + this._super(); + set(this, 'context', this); + set(this, 'controller', this); + }, + + defaultLayout: function(context, options){ + Ember.Handlebars.helpers['yield'].call(context, options); + }, + + /** + A components template property is set by passing a block + during its invocation. It is executed within the parent context. + + Example: + + ```handlebars + {{#my-component}} + // something that is run in the context + // of the parent context + {{/my-component}} + ``` + + Specifying a template directly to a component is deprecated without + also specifying the layout property. + + @deprecated + @property template + */ + template: computed(function(key, value) { + if (value !== undefined) { return value; } + + var templateName = get(this, 'templateName'), + template = this.templateForName(templateName, 'template'); + + + return template || get(this, 'defaultTemplate'); + }).property('templateName'), + + /** + Specifying a components `templateName` is deprecated without also + providing the `layout` or `layoutName` properties. + + @deprecated + @property templateName + */ + templateName: null, + + // during render, isolate keywords + cloneKeywords: function() { + return { + view: this, + controller: this + }; + }, + + _yield: function(context, options) { + var view = options.data.view, + parentView = this._parentView, + template = get(this, 'template'); + + if (template) { + + view.appendChild(View, { + isVirtual: true, + tagName: '', + _contextView: parentView, + template: template, + context: get(parentView, 'context'), + controller: get(parentView, 'controller'), + templateData: { keywords: parentView.cloneKeywords() } + }); + } + }, + + /** + If the component is currently inserted into the DOM of a parent view, this + property will point to the controller of the parent view. + + @property targetObject + @type Ember.Controller + @default null + */ + targetObject: computed(function(key) { + var parentView = get(this, '_parentView'); + return parentView ? get(parentView, 'controller') : null; + }).property('_parentView'), + + /** + Triggers a named action on the controller context where the component is used if + this controller has registered for notifications of the action. + + For example a component for playing or pausing music may translate click events + into action notifications of "play" or "stop" depending on some internal state + of the component: + + + ```javascript + App.PlayButtonComponent = Ember.Component.extend({ + click: function(){ + if (this.get('isPlaying')) { + this.sendAction('play'); + } else { + this.sendAction('stop'); + } + } + }); + ``` + + When used inside a template these component actions are configured to + trigger actions in the outer application context: + + ```handlebars + {{! application.hbs }} + {{play-button play="musicStarted" stop="musicStopped"}} + ``` + + When the component receives a browser `click` event it translate this + interaction into application-specific semantics ("play" or "stop") and + triggers the specified action name on the controller for the template + where the component is used: + + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + actions: { + musicStarted: function(){ + // called when the play button is clicked + // and the music started playing + }, + musicStopped: function(){ + // called when the play button is clicked + // and the music stopped playing + } + } + }); + ``` + + If no action name is passed to `sendAction` a default name of "action" + is assumed. + + ```javascript + App.NextButtonComponent = Ember.Component.extend({ + click: function(){ + this.sendAction(); + } + }); + ``` + + ```handlebars + {{! application.hbs }} + {{next-button action="playNextSongInAlbum"}} + ``` + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + actions: { + playNextSongInAlbum: function(){ + ... + } + } + }); + ``` + + @method sendAction + @param [action] {String} the action to trigger + @param [context] {*} a context to send with the action + */ + sendAction: function(action) { + var actionName, + contexts = a_slice.call(arguments, 1); + + // Send the default action + if (action === undefined) { + actionName = get(this, 'action'); + } else { + actionName = get(this, action); + } + + // If no action name for that action could be found, just abort. + if (actionName === undefined) { return; } + + this.triggerAction({ + action: actionName, + actionContext: contexts + }); + } + }); + + __exports__["default"] = Component; + }); +define("ember-views/views/container_view", + ["ember-metal/core","ember-metal/merge","ember-runtime/mixins/mutable_array","ember-metal/property_get","ember-metal/property_set","ember-views/views/view","ember-views/views/states","ember-metal/error","ember-metal/enumerable_utils","ember-metal/computed","ember-metal/run_loop","ember-metal/properties","ember-views/system/render_buffer","ember-metal/mixin","ember-runtime/system/native_array","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.K + + var merge = __dependency2__["default"]; + var MutableArray = __dependency3__["default"]; + var get = __dependency4__.get; + var set = __dependency5__.set; + + var View = __dependency6__.View; + var ViewCollection = __dependency6__.ViewCollection; + var cloneStates = __dependency7__.cloneStates; + var EmberViewStates = __dependency7__.states; + + var EmberError = __dependency8__["default"]; + + // ES6TODO: functions on EnumerableUtils should get their own export + var EnumerableUtils = __dependency9__["default"]; + var forEach = EnumerableUtils.forEach; + + var computed = __dependency10__.computed; + var run = __dependency11__["default"]; + var defineProperty = __dependency12__.defineProperty; + var RenderBuffer = __dependency13__["default"]; + var observer = __dependency14__.observer; + var beforeObserver = __dependency14__.beforeObserver; + var A = __dependency15__.A; + + /** + @module ember + @submodule ember-views + */ + + var states = cloneStates(EmberViewStates); + + /** + A `ContainerView` is an `Ember.View` subclass that implements `Ember.MutableArray` + allowing programmatic management of its child views. + + ## Setting Initial Child Views + + The initial array of child views can be set in one of two ways. You can + provide a `childViews` property at creation time that contains instance of + `Ember.View`: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: [Ember.View.create(), Ember.View.create()] + }); + ``` + + You can also provide a list of property names whose values are instances of + `Ember.View`: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: ['aView', 'bView', 'cView'], + aView: Ember.View.create(), + bView: Ember.View.create(), + cView: Ember.View.create() + }); + ``` + + The two strategies can be combined: + + ```javascript + aContainer = Ember.ContainerView.create({ + childViews: ['aView', Ember.View.create()], + aView: Ember.View.create() + }); + ``` + + Each child view's rendering will be inserted into the container's rendered + HTML in the same order as its position in the `childViews` property. + + ## Adding and Removing Child Views + + The container view implements `Ember.MutableArray` allowing programmatic management of its child views. + + To remove a view, pass that view into a `removeObject` call on the container view. + + Given an empty `` the following code + + ```javascript + aContainer = Ember.ContainerView.create({ + classNames: ['the-container'], + childViews: ['aView', 'bView'], + aView: Ember.View.create({ + template: Ember.Handlebars.compile("A") + }), + bView: Ember.View.create({ + template: Ember.Handlebars.compile("B") + }) + }); + + aContainer.appendTo('body'); + ``` + + Results in the HTML + + ```html +
    +
    A
    +
    B
    +
    + ``` + + Removing a view + + ```javascript + aContainer.toArray(); // [aContainer.aView, aContainer.bView] + aContainer.removeObject(aContainer.get('bView')); + aContainer.toArray(); // [aContainer.aView] + ``` + + Will result in the following HTML + + ```html +
    +
    A
    +
    + ``` + + Similarly, adding a child view is accomplished by adding `Ember.View` instances to the + container view. + + Given an empty `` the following code + + ```javascript + aContainer = Ember.ContainerView.create({ + classNames: ['the-container'], + childViews: ['aView', 'bView'], + aView: Ember.View.create({ + template: Ember.Handlebars.compile("A") + }), + bView: Ember.View.create({ + template: Ember.Handlebars.compile("B") + }) + }); + + aContainer.appendTo('body'); + ``` + + Results in the HTML + + ```html +
    +
    A
    +
    B
    +
    + ``` + + Adding a view + + ```javascript + AnotherViewClass = Ember.View.extend({ + template: Ember.Handlebars.compile("Another view") + }); + + aContainer.toArray(); // [aContainer.aView, aContainer.bView] + aContainer.pushObject(AnotherViewClass.create()); + aContainer.toArray(); // [aContainer.aView, aContainer.bView, ] + ``` + + Will result in the following HTML + + ```html +
    +
    A
    +
    B
    +
    Another view
    +
    + ``` + + ## Templates and Layout + + A `template`, `templateName`, `defaultTemplate`, `layout`, `layoutName` or + `defaultLayout` property on a container view will not result in the template + or layout being rendered. The HTML contents of a `Ember.ContainerView`'s DOM + representation will only be the rendered HTML of its child views. + + @class ContainerView + @namespace Ember + @extends Ember.View + */ + var ContainerView = View.extend(MutableArray, { + states: states, + + init: function() { + this._super(); + + var childViews = get(this, 'childViews'); + + // redefine view's childViews property that was obliterated + defineProperty(this, 'childViews', View.childViewsProperty); + + var _childViews = this._childViews; + + forEach(childViews, function(viewName, idx) { + var view; + + if ('string' === typeof viewName) { + view = get(this, viewName); + view = this.createChildView(view); + set(this, viewName, view); + } else { + view = this.createChildView(viewName); + } + + _childViews[idx] = view; + }, this); + + var currentView = get(this, 'currentView'); + if (currentView) { + if (!_childViews.length) { _childViews = this._childViews = this._childViews.slice(); } + _childViews.push(this.createChildView(currentView)); + } + }, + + replace: function(idx, removedCount, addedViews) { + var addedCount = addedViews ? get(addedViews, 'length') : 0; + var self = this; + + this.arrayContentWillChange(idx, removedCount, addedCount); + this.childViewsWillChange(this._childViews, idx, removedCount); + + if (addedCount === 0) { + this._childViews.splice(idx, removedCount) ; + } else { + var args = [idx, removedCount].concat(addedViews); + if (addedViews.length && !this._childViews.length) { this._childViews = this._childViews.slice(); } + this._childViews.splice.apply(this._childViews, args); + } + + this.arrayContentDidChange(idx, removedCount, addedCount); + this.childViewsDidChange(this._childViews, idx, removedCount, addedCount); + + return this; + }, + + objectAt: function(idx) { + return this._childViews[idx]; + }, + + length: computed(function () { + return this._childViews.length; + }).volatile(), + + /** + Instructs each child view to render to the passed render buffer. + + @private + @method render + @param {Ember.RenderBuffer} buffer the buffer to render to + */ + render: function(buffer) { + this.forEachChildView(function(view) { + view.renderToBuffer(buffer); + }); + }, + + instrumentName: 'container', + + /** + When a child view is removed, destroy its element so that + it is removed from the DOM. + + The array observer that triggers this action is set up in the + `renderToBuffer` method. + + @private + @method childViewsWillChange + @param {Ember.Array} views the child views array before mutation + @param {Number} start the start position of the mutation + @param {Number} removed the number of child views removed + **/ + childViewsWillChange: function(views, start, removed) { + this.propertyWillChange('childViews'); + + if (removed > 0) { + var changedViews = views.slice(start, start+removed); + // transition to preRender before clearing parentView + this.currentState.childViewsWillChange(this, views, start, removed); + this.initializeViews(changedViews, null, null); + } + }, + + removeChild: function(child) { + this.removeObject(child); + return this; + }, + + /** + When a child view is added, make sure the DOM gets updated appropriately. + + If the view has already rendered an element, we tell the child view to + create an element and insert it into the DOM. If the enclosing container + view has already written to a buffer, but not yet converted that buffer + into an element, we insert the string representation of the child into the + appropriate place in the buffer. + + @private + @method childViewsDidChange + @param {Ember.Array} views the array of child views after the mutation has occurred + @param {Number} start the start position of the mutation + @param {Number} removed the number of child views removed + @param {Number} the number of child views added + */ + childViewsDidChange: function(views, start, removed, added) { + if (added > 0) { + var changedViews = views.slice(start, start+added); + this.initializeViews(changedViews, this, get(this, 'templateData')); + this.currentState.childViewsDidChange(this, views, start, added); + } + this.propertyDidChange('childViews'); + }, + + initializeViews: function(views, parentView, templateData) { + forEach(views, function(view) { + set(view, '_parentView', parentView); + + if (!view.container && parentView) { + set(view, 'container', parentView.container); + } + + if (!get(view, 'templateData')) { + set(view, 'templateData', templateData); + } + }); + }, + + currentView: null, + + _currentViewWillChange: beforeObserver('currentView', function() { + var currentView = get(this, 'currentView'); + if (currentView) { + currentView.destroy(); + } + }), + + _currentViewDidChange: observer('currentView', function() { + var currentView = get(this, 'currentView'); + if (currentView) { + this.pushObject(currentView); + } + }), + + _ensureChildrenAreInDOM: function () { + this.currentState.ensureChildrenAreInDOM(this); + } + }); + + merge(states._default, { + childViewsWillChange: Ember.K, + childViewsDidChange: Ember.K, + ensureChildrenAreInDOM: Ember.K + }); + + merge(states.inBuffer, { + childViewsDidChange: function(parentView, views, start, added) { + throw new EmberError('You cannot modify child views while in the inBuffer state'); + } + }); + + merge(states.hasElement, { + childViewsWillChange: function(view, views, start, removed) { + for (var i=start; i + ``` + + ## HTML `class` Attribute + + The HTML `class` attribute of a view's tag can be set by providing a + `classNames` property that is set to an array of strings: + + ```javascript + MyView = Ember.View.extend({ + classNames: ['my-class', 'my-other-class'] + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + `class` attribute values can also be set by providing a `classNameBindings` + property set to an array of properties names for the view. The return value + of these properties will be added as part of the value for the view's `class` + attribute. These properties can be computed properties: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['propertyA', 'propertyB'], + propertyA: 'from-a', + propertyB: function() { + if (someLogic) { return 'from-b'; } + }.property() + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + If the value of a class name binding returns a boolean the property name + itself will be used as the class name if the property is true. The class name + will not be added if the value is `false` or `undefined`. + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['hovered'], + hovered: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When using boolean class name bindings you can supply a string value other + than the property name for use as the `class` HTML attribute by appending the + preferred value after a ":" character when defining the binding: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['awesome:so-very-cool'], + awesome: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + Boolean value class name bindings whose property names are in a + camelCase-style format will be converted to a dasherized format: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['isUrgent'], + isUrgent: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + Class name bindings can also refer to object values that are found by + traversing a path relative to the view itself: + + ```javascript + MyView = Ember.View.extend({ + classNameBindings: ['messages.empty'] + messages: Ember.Object.create({ + empty: true + }) + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + If you want to add a class name for a property which evaluates to true and + and a different class name if it evaluates to false, you can pass a binding + like this: + + ```javascript + // Applies 'enabled' class when isEnabled is true and 'disabled' when isEnabled is false + Ember.View.extend({ + classNameBindings: ['isEnabled:enabled:disabled'] + isEnabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When isEnabled is `false`, the resulting HTML reprensentation looks like + this: + + ```html +
    + ``` + + This syntax offers the convenience to add a class if a property is `false`: + + ```javascript + // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false + Ember.View.extend({ + classNameBindings: ['isEnabled::disabled'] + isEnabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    + ``` + + When the `isEnabled` property on the view is set to `false`, it will result + in view instances with an HTML representation of: + + ```html +
    + ``` + + Updates to the the value of a class name binding will result in automatic + update of the HTML `class` attribute in the view's rendered HTML + representation. If the value becomes `false` or `undefined` the class name + will be removed. + + Both `classNames` and `classNameBindings` are concatenated properties. See + [Ember.Object](/api/classes/Ember.Object.html) documentation for more + information about concatenated properties. + + ## HTML Attributes + + The HTML attribute section of a view's tag can be set by providing an + `attributeBindings` property set to an array of property names on the view. + The return value of these properties will be used as the value of the view's + HTML associated attribute: + + ```javascript + AnchorView = Ember.View.extend({ + tagName: 'a', + attributeBindings: ['href'], + href: 'http://google.com' + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html + + ``` + + If the return value of an `attributeBindings` monitored property is a boolean + the property will follow HTML's pattern of repeating the attribute's name as + its value: + + ```javascript + MyTextInput = Ember.View.extend({ + tagName: 'input', + attributeBindings: ['disabled'], + disabled: true + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html + + ``` + + `attributeBindings` can refer to computed properties: + + ```javascript + MyTextInput = Ember.View.extend({ + tagName: 'input', + attributeBindings: ['disabled'], + disabled: function() { + if (someLogic) { + return true; + } else { + return false; + } + }.property() + }); + ``` + + Updates to the the property of an attribute binding will result in automatic + update of the HTML attribute in the view's rendered HTML representation. + + `attributeBindings` is a concatenated property. See [Ember.Object](/api/classes/Ember.Object.html) + documentation for more information about concatenated properties. + + ## Templates + + The HTML contents of a view's rendered representation are determined by its + template. Templates can be any function that accepts an optional context + parameter and returns a string of HTML that will be inserted within the + view's tag. Most typically in Ember this function will be a compiled + `Ember.Handlebars` template. + + ```javascript + AView = Ember.View.extend({ + template: Ember.Handlebars.compile('I am the template') + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    I am the template
    + ``` + + Within an Ember application is more common to define a Handlebars templates as + part of a page: + + ```html + + ``` + + And associate it by name using a view's `templateName` property: + + ```javascript + AView = Ember.View.extend({ + templateName: 'some-template' + }); + ``` + + If you have nested resources, your Handlebars template will look like this: + + ```html + + ``` + + And `templateName` property: + + ```javascript + AView = Ember.View.extend({ + templateName: 'posts/new' + }); + ``` + + Using a value for `templateName` that does not have a Handlebars template + with a matching `data-template-name` attribute will throw an error. + + For views classes that may have a template later defined (e.g. as the block + portion of a `{{view}}` Handlebars helper call in another template or in + a subclass), you can provide a `defaultTemplate` property set to compiled + template function. If a template is not later provided for the view instance + the `defaultTemplate` value will be used: + + ```javascript + AView = Ember.View.extend({ + defaultTemplate: Ember.Handlebars.compile('I was the default'), + template: null, + templateName: null + }); + ``` + + Will result in instances with an HTML representation of: + + ```html +
    I was the default
    + ``` + + If a `template` or `templateName` is provided it will take precedence over + `defaultTemplate`: + + ```javascript + AView = Ember.View.extend({ + defaultTemplate: Ember.Handlebars.compile('I was the default') + }); + + aView = AView.create({ + template: Ember.Handlebars.compile('I was the template, not default') + }); + ``` + + Will result in the following HTML representation when rendered: + + ```html +
    I was the template, not default
    + ``` + + ## View Context + + The default context of the compiled template is the view's controller: + + ```javascript + AView = Ember.View.extend({ + template: Ember.Handlebars.compile('Hello {{excitedGreeting}}') + }); + + aController = Ember.Object.create({ + firstName: 'Barry', + excitedGreeting: function() { + return this.get("content.firstName") + "!!!" + }.property() + }); + + aView = AView.create({ + controller: aController, + }); + ``` + + Will result in an HTML representation of: + + ```html +
    Hello Barry!!!
    + ``` + + A context can also be explicitly supplied through the view's `context` + property. If the view has neither `context` nor `controller` properties, the + `parentView`'s context will be used. + + ## Layouts + + Views can have a secondary template that wraps their main template. Like + primary templates, layouts can be any function that accepts an optional + context parameter and returns a string of HTML that will be inserted inside + view's tag. Views whose HTML element is self closing (e.g. ``) + cannot have a layout and this property will be ignored. + + Most typically in Ember a layout will be a compiled `Ember.Handlebars` + template. + + A view's layout can be set directly with the `layout` property or reference + an existing Handlebars template by name with the `layoutName` property. + + A template used as a layout must contain a single use of the Handlebars + `{{yield}}` helper. The HTML contents of a view's rendered `template` will be + inserted at this location: + + ```javascript + AViewWithLayout = Ember.View.extend({ + layout: Ember.Handlebars.compile("
    {{yield}}
    ") + template: Ember.Handlebars.compile("I got wrapped"), + }); + ``` + + Will result in view instances with an HTML representation of: + + ```html +
    +
    + I got wrapped +
    +
    + ``` + + See [Ember.Handlebars.helpers.yield](/api/classes/Ember.Handlebars.helpers.html#method_yield) + for more information. + + ## Responding to Browser Events + + Views can respond to user-initiated events in one of three ways: method + implementation, through an event manager, and through `{{action}}` helper use + in their template or layout. + + ### Method Implementation + + Views can respond to user-initiated events by implementing a method that + matches the event name. A `jQuery.Event` object will be passed as the + argument to this method. + + ```javascript + AView = Ember.View.extend({ + click: function(event) { + // will be called when when an instance's + // rendered element is clicked + } + }); + ``` + + ### Event Managers + + Views can define an object as their `eventManager` property. This object can + then implement methods that match the desired event names. Matching events + that occur on the view's rendered HTML or the rendered HTML of any of its DOM + descendants will trigger this method. A `jQuery.Event` object will be passed + as the first argument to the method and an `Ember.View` object as the + second. The `Ember.View` will be the view whose rendered HTML was interacted + with. This may be the view with the `eventManager` property or one of its + descendent views. + + ```javascript + AView = Ember.View.extend({ + eventManager: Ember.Object.create({ + doubleClick: function(event, view) { + // will be called when when an instance's + // rendered element or any rendering + // of this views's descendent + // elements is clicked + } + }) + }); + ``` + + An event defined for an event manager takes precedence over events of the + same name handled through methods on the view. + + ```javascript + AView = Ember.View.extend({ + mouseEnter: function(event) { + // will never trigger. + }, + eventManager: Ember.Object.create({ + mouseEnter: function(event, view) { + // takes precedence over AView#mouseEnter + } + }) + }); + ``` + + Similarly a view's event manager will take precedence for events of any views + rendered as a descendent. A method name that matches an event name will not + be called if the view instance was rendered inside the HTML representation of + a view that has an `eventManager` property defined that handles events of the + name. Events not handled by the event manager will still trigger method calls + on the descendent. + + ```javascript + OuterView = Ember.View.extend({ + template: Ember.Handlebars.compile("outer {{#view InnerView}}inner{{/view}} outer"), + eventManager: Ember.Object.create({ + mouseEnter: function(event, view) { + // view might be instance of either + // OuterView or InnerView depending on + // where on the page the user interaction occured + } + }) + }); + + InnerView = Ember.View.extend({ + click: function(event) { + // will be called if rendered inside + // an OuterView because OuterView's + // eventManager doesn't handle click events + }, + mouseEnter: function(event) { + // will never be called if rendered inside + // an OuterView. + } + }); + ``` + + ### Handlebars `{{action}}` Helper + + See [Handlebars.helpers.action](/api/classes/Ember.Handlebars.helpers.html#method_action). + + ### Event Names + + All of the event handling approaches described above respond to the same set + of events. The names of the built-in events are listed below. (The hash of + built-in events exists in `Ember.EventDispatcher`.) Additional, custom events + can be registered by using `Ember.Application.customEvents`. + + Touch events: + + * `touchStart` + * `touchMove` + * `touchEnd` + * `touchCancel` + + Keyboard events + + * `keyDown` + * `keyUp` + * `keyPress` + + Mouse events + + * `mouseDown` + * `mouseUp` + * `contextMenu` + * `click` + * `doubleClick` + * `mouseMove` + * `focusIn` + * `focusOut` + * `mouseEnter` + * `mouseLeave` + + Form events: + + * `submit` + * `change` + * `focusIn` + * `focusOut` + * `input` + + HTML5 drag and drop events: + + * `dragStart` + * `drag` + * `dragEnter` + * `dragLeave` + * `dragOver` + * `dragEnd` + * `drop` + + ## Handlebars `{{view}}` Helper + + Other `Ember.View` instances can be included as part of a view's template by + using the `{{view}}` Handlebars helper. See [Ember.Handlebars.helpers.view](/api/classes/Ember.Handlebars.helpers.html#method_view) + for additional information. + + @class View + @namespace Ember + @extends Ember.CoreView + */ + var View = CoreView.extend({ + + concatenatedProperties: ['classNames', 'classNameBindings', 'attributeBindings'], + + /** + @property isView + @type Boolean + @default true + @static + */ + isView: true, + + // .......................................................... + // TEMPLATE SUPPORT + // + + /** + The name of the template to lookup if no template is provided. + + By default `Ember.View` will lookup a template with this name in + `Ember.TEMPLATES` (a shared global object). + + @property templateName + @type String + @default null + */ + templateName: null, + + /** + The name of the layout to lookup if no layout is provided. + + By default `Ember.View` will lookup a template with this name in + `Ember.TEMPLATES` (a shared global object). + + @property layoutName + @type String + @default null + */ + layoutName: null, + + /** + The template used to render the view. This should be a function that + accepts an optional context parameter and returns a string of HTML that + will be inserted into the DOM relative to its parent view. + + In general, you should set the `templateName` property instead of setting + the template yourself. + + @property template + @type Function + */ + template: computed('templateName', function(key, value) { + if (value !== undefined) { return value; } + + var templateName = get(this, 'templateName'), + template = this.templateForName(templateName, 'template'); + + + return template || get(this, 'defaultTemplate'); + }), + + /** + The controller managing this view. If this property is set, it will be + made available for use by the template. + + @property controller + @type Object + */ + controller: computed('_parentView', function(key) { + var parentView = get(this, '_parentView'); + return parentView ? get(parentView, 'controller') : null; + }), + + /** + A view may contain a layout. A layout is a regular template but + supersedes the `template` property during rendering. It is the + responsibility of the layout template to retrieve the `template` + property from the view (or alternatively, call `Handlebars.helpers.yield`, + `{{yield}}`) to render it in the correct location. + + This is useful for a view that has a shared wrapper, but which delegates + the rendering of the contents of the wrapper to the `template` property + on a subclass. + + @property layout + @type Function + */ + layout: computed(function(key) { + var layoutName = get(this, 'layoutName'), + layout = this.templateForName(layoutName, 'layout'); + + + return layout || get(this, 'defaultLayout'); + }).property('layoutName'), + + _yield: function(context, options) { + var template = get(this, 'template'); + if (template) { template(context, options); } + }, + + templateForName: function(name, type) { + if (!name) { return; } + + // the defaultContainer is deprecated + var container = this.container || (Container && Container.defaultContainer); + return container && container.lookup('template:' + name); + }, + + /** + The object from which templates should access properties. + + This object will be passed to the template function each time the render + method is called, but it is up to the individual function to decide what + to do with it. + + By default, this will be the view's controller. + + @property context + @type Object + */ + context: computed(function(key, value) { + if (arguments.length === 2) { + set(this, '_context', value); + return value; + } else { + return get(this, '_context'); + } + }).volatile(), + + /** + Private copy of the view's template context. This can be set directly + by Handlebars without triggering the observer that causes the view + to be re-rendered. + + The context of a view is looked up as follows: + + 1. Supplied context (usually by Handlebars) + 2. Specified controller + 3. `parentView`'s context (for a child of a ContainerView) + + The code in Handlebars that overrides the `_context` property first + checks to see whether the view has a specified controller. This is + something of a hack and should be revisited. + + @property _context + @private + */ + _context: computed(function(key) { + var parentView, controller; + + if (controller = get(this, 'controller')) { + return controller; + } + + parentView = this._parentView; + if (parentView) { + return get(parentView, '_context'); + } + + return null; + }), + + /** + If a value that affects template rendering changes, the view should be + re-rendered to reflect the new value. + + @method _contextDidChange + @private + */ + _contextDidChange: observer('context', function() { + this.rerender(); + }), + + /** + If `false`, the view will appear hidden in DOM. + + @property isVisible + @type Boolean + @default null + */ + isVisible: true, + + /** + Array of child views. You should never edit this array directly. + Instead, use `appendChild` and `removeFromParent`. + + @property childViews + @type Array + @default [] + @private + */ + childViews: childViewsProperty, + + _childViews: EMPTY_ARRAY, + + // When it's a virtual view, we need to notify the parent that their + // childViews will change. + _childViewsWillChange: beforeObserver('childViews', function() { + if (this.isVirtual) { + var parentView = get(this, 'parentView'); + if (parentView) { propertyWillChange(parentView, 'childViews'); } + } + }), + + // When it's a virtual view, we need to notify the parent that their + // childViews did change. + _childViewsDidChange: observer('childViews', function() { + if (this.isVirtual) { + var parentView = get(this, 'parentView'); + if (parentView) { propertyDidChange(parentView, 'childViews'); } + } + }), + + /** + Return the nearest ancestor that is an instance of the provided + class. + + @method nearestInstanceOf + @param {Class} klass Subclass of Ember.View (or Ember.View itself) + @return Ember.View + @deprecated + */ + nearestInstanceOf: function(klass) { + var view = get(this, 'parentView'); + + while (view) { + if (view instanceof klass) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor that is an instance of the provided + class or mixin. + + @method nearestOfType + @param {Class,Mixin} klass Subclass of Ember.View (or Ember.View itself), + or an instance of Ember.Mixin. + @return Ember.View + */ + nearestOfType: function(klass) { + var view = get(this, 'parentView'), + isOfType = klass instanceof Mixin ? + function(view) { return klass.detect(view); } : + function(view) { return klass.detect(view.constructor); }; + + while (view) { + if (isOfType(view)) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor that has a given property. + + @function nearestWithProperty + @param {String} property A property name + @return Ember.View + */ + nearestWithProperty: function(property) { + var view = get(this, 'parentView'); + + while (view) { + if (property in view) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + Return the nearest ancestor whose parent is an instance of + `klass`. + + @method nearestChildOf + @param {Class} klass Subclass of Ember.View (or Ember.View itself) + @return Ember.View + */ + nearestChildOf: function(klass) { + var view = get(this, 'parentView'); + + while (view) { + if (get(view, 'parentView') instanceof klass) { return view; } + view = get(view, 'parentView'); + } + }, + + /** + When the parent view changes, recursively invalidate `controller` + + @method _parentViewDidChange + @private + */ + _parentViewDidChange: observer('_parentView', function() { + if (this.isDestroying) { return; } + + this.trigger('parentViewDidChange'); + + if (get(this, 'parentView.controller') && !get(this, 'controller')) { + this.notifyPropertyChange('controller'); + } + }), + + _controllerDidChange: observer('controller', function() { + if (this.isDestroying) { return; } + + this.rerender(); + + this.forEachChildView(function(view) { + view.propertyDidChange('controller'); + }); + }), + + cloneKeywords: function() { + var templateData = get(this, 'templateData'); + + var keywords = templateData ? copy(templateData.keywords) : {}; + set(keywords, 'view', get(this, 'concreteView')); + set(keywords, '_view', this); + set(keywords, 'controller', get(this, 'controller')); + + return keywords; + }, + + /** + Called on your view when it should push strings of HTML into a + `Ember.RenderBuffer`. Most users will want to override the `template` + or `templateName` properties instead of this method. + + By default, `Ember.View` will look for a function in the `template` + property and invoke it with the value of `context`. The value of + `context` will be the view's controller unless you override it. + + @method render + @param {Ember.RenderBuffer} buffer The render buffer + */ + render: function(buffer) { + // If this view has a layout, it is the responsibility of the + // the layout to render the view's template. Otherwise, render the template + // directly. + var template = get(this, 'layout') || get(this, 'template'); + + if (template) { + var context = get(this, 'context'); + var keywords = this.cloneKeywords(); + var output; + + var data = { + view: this, + buffer: buffer, + isRenderData: true, + keywords: keywords, + insideGroup: get(this, 'templateData.insideGroup') + }; + + // Invoke the template with the provided template context, which + // is the view's controller by default. A hash of data is also passed that provides + // the template with access to the view and render buffer. + + // The template should write directly to the render buffer instead + // of returning a string. + output = template(context, { data: data }); + + // If the template returned a string instead of writing to the buffer, + // push the string onto the buffer. + if (output !== undefined) { buffer.push(output); } + } + }, + + /** + Renders the view again. This will work regardless of whether the + view is already in the DOM or not. If the view is in the DOM, the + rendering process will be deferred to give bindings a chance + to synchronize. + + If children were added during the rendering process using `appendChild`, + `rerender` will remove them, because they will be added again + if needed by the next `render`. + + In general, if the display of your view changes, you should modify + the DOM element directly instead of manually calling `rerender`, which can + be slow. + + @method rerender + */ + rerender: function() { + return this.currentState.rerender(this); + }, + + clearRenderedChildren: function() { + var lengthBefore = this.lengthBeforeRender, + lengthAfter = this.lengthAfterRender; + + // If there were child views created during the last call to render(), + // remove them under the assumption that they will be re-created when + // we re-render. + + // VIEW-TODO: Unit test this path. + var childViews = this._childViews; + for (var i=lengthAfter-1; i>=lengthBefore; i--) { + if (childViews[i]) { childViews[i].destroy(); } + } + }, + + /** + Iterates over the view's `classNameBindings` array, inserts the value + of the specified property into the `classNames` array, then creates an + observer to update the view's element if the bound property ever changes + in the future. + + @method _applyClassNameBindings + @private + */ + _applyClassNameBindings: function(classBindings) { + var classNames = this.classNames, + elem, newClass, dasherizedClass; + + // Loop through all of the configured bindings. These will be either + // property names ('isUrgent') or property paths relative to the view + // ('content.isUrgent') + a_forEach(classBindings, function(binding) { + + + // Variable in which the old class value is saved. The observer function + // closes over this variable, so it knows which string to remove when + // the property changes. + var oldClass; + // Extract just the property name from bindings like 'foo:bar' + var parsedPath = View._parsePropertyPath(binding); + + // Set up an observer on the context. If the property changes, toggle the + // class name. + var observer = function() { + // Get the current value of the property + newClass = this._classStringForProperty(binding); + elem = this.$(); + + // If we had previously added a class to the element, remove it. + if (oldClass) { + elem.removeClass(oldClass); + // Also remove from classNames so that if the view gets rerendered, + // the class doesn't get added back to the DOM. + classNames.removeObject(oldClass); + } + + // If necessary, add a new class. Make sure we keep track of it so + // it can be removed in the future. + if (newClass) { + elem.addClass(newClass); + oldClass = newClass; + } else { + oldClass = null; + } + }; + + // Get the class name for the property at its current value + dasherizedClass = this._classStringForProperty(binding); + + if (dasherizedClass) { + // Ensure that it gets into the classNames array + // so it is displayed when we render. + a_addObject(classNames, dasherizedClass); + + // Save a reference to the class name so we can remove it + // if the observer fires. Remember that this variable has + // been closed over by the observer. + oldClass = dasherizedClass; + } + + this.registerObserver(this, parsedPath.path, observer); + // Remove className so when the view is rerendered, + // the className is added based on binding reevaluation + this.one('willClearRender', function() { + if (oldClass) { + classNames.removeObject(oldClass); + oldClass = null; + } + }); + + }, this); + }, + + _unspecifiedAttributeBindings: null, + + /** + Iterates through the view's attribute bindings, sets up observers for each, + then applies the current value of the attributes to the passed render buffer. + + @method _applyAttributeBindings + @param {Ember.RenderBuffer} buffer + @private + */ + _applyAttributeBindings: function(buffer, attributeBindings) { + var attributeValue, + unspecifiedAttributeBindings = this._unspecifiedAttributeBindings = this._unspecifiedAttributeBindings || {}; + + a_forEach(attributeBindings, function(binding) { + var split = binding.split(':'), + property = split[0], + attributeName = split[1] || property; + + if (property in this) { + this._setupAttributeBindingObservation(property, attributeName); + + // Determine the current value and add it to the render buffer + // if necessary. + attributeValue = get(this, property); + View.applyAttributeBindings(buffer, attributeName, attributeValue); + } else { + unspecifiedAttributeBindings[property] = attributeName; + } + }, this); + + // Lazily setup setUnknownProperty after attributeBindings are initially applied + this.setUnknownProperty = this._setUnknownProperty; + }, + + _setupAttributeBindingObservation: function(property, attributeName) { + var attributeValue, elem; + + // Create an observer to add/remove/change the attribute if the + // JavaScript property changes. + var observer = function() { + elem = this.$(); + + attributeValue = get(this, property); + + View.applyAttributeBindings(elem, attributeName, attributeValue); + }; + + this.registerObserver(this, property, observer); + }, + + /** + We're using setUnknownProperty as a hook to setup attributeBinding observers for + properties that aren't defined on a view at initialization time. + + Note: setUnknownProperty will only be called once for each property. + + @method setUnknownProperty + @param key + @param value + @private + */ + setUnknownProperty: null, // Gets defined after initialization by _applyAttributeBindings + + _setUnknownProperty: function(key, value) { + var attributeName = this._unspecifiedAttributeBindings && this._unspecifiedAttributeBindings[key]; + if (attributeName) { + this._setupAttributeBindingObservation(key, attributeName); + } + + defineProperty(this, key); + return set(this, key, value); + }, + + /** + Given a property name, returns a dasherized version of that + property name if the property evaluates to a non-falsy value. + + For example, if the view has property `isUrgent` that evaluates to true, + passing `isUrgent` to this method will return `"is-urgent"`. + + @method _classStringForProperty + @param property + @private + */ + _classStringForProperty: function(property) { + var parsedPath = View._parsePropertyPath(property); + var path = parsedPath.path; + + var val = get(this, path); + if (val === undefined && isGlobalPath(path)) { + val = get(Ember.lookup, path); + } + + return View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName); + }, + + // .......................................................... + // ELEMENT SUPPORT + // + + /** + Returns the current DOM element for the view. + + @property element + @type DOMElement + */ + element: computed('_parentView', function(key, value) { + if (value !== undefined) { + return this.currentState.setElement(this, value); + } else { + return this.currentState.getElement(this); + } + }), + + /** + Returns a jQuery object for this view's element. If you pass in a selector + string, this method will return a jQuery object, using the current element + as its buffer. + + For example, calling `view.$('li')` will return a jQuery object containing + all of the `li` elements inside the DOM element of this view. + + @method $ + @param {String} [selector] a jQuery-compatible selector string + @return {jQuery} the jQuery object for the DOM node + */ + $: function(sel) { + return this.currentState.$(this, sel); + }, + + mutateChildViews: function(callback) { + var childViews = this._childViews, + idx = childViews.length, + view; + + while(--idx >= 0) { + view = childViews[idx]; + callback(this, view, idx); + } + + return this; + }, + + forEachChildView: function(callback) { + var childViews = this._childViews; + + if (!childViews) { return this; } + + var len = childViews.length, + view, idx; + + for (idx = 0; idx < len; idx++) { + view = childViews[idx]; + callback(view); + } + + return this; + }, + + /** + Appends the view's element to the specified parent element. + + If the view does not have an HTML representation yet, `createElement()` + will be called automatically. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the given element until all bindings have + finished synchronizing. + + This is not typically a function that you will need to call directly when + building your application. You might consider using `Ember.ContainerView` + instead. If you do need to use `appendTo`, be sure that the target element + you are providing is associated with an `Ember.Application` and does not + have an ancestor element that is associated with an Ember view. + + @method appendTo + @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object + @return {Ember.View} receiver + */ + appendTo: function(target) { + // Schedule the DOM element to be created and appended to the given + // element after bindings have synchronized. + this._insertElementLater(function() { + this.$().appendTo(target); + }); + + return this; + }, + + /** + Replaces the content of the specified parent element with this view's + element. If the view does not have an HTML representation yet, + `createElement()` will be called automatically. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the given element until all bindings have + finished synchronizing + + @method replaceIn + @param {String|DOMElement|jQuery} target A selector, element, HTML string, or jQuery object + @return {Ember.View} received + */ + replaceIn: function(target) { + + this._insertElementLater(function() { + jQuery(target).empty(); + this.$().appendTo(target); + }); + + return this; + }, + + /** + Schedules a DOM operation to occur during the next render phase. This + ensures that all bindings have finished synchronizing before the view is + rendered. + + To use, pass a function that performs a DOM operation. + + Before your function is called, this view and all child views will receive + the `willInsertElement` event. After your function is invoked, this view + and all of its child views will receive the `didInsertElement` event. + + ```javascript + view._insertElementLater(function() { + this.createElement(); + this.$().appendTo('body'); + }); + ``` + + @method _insertElementLater + @param {Function} fn the function that inserts the element into the DOM + @private + */ + _insertElementLater: function(fn) { + this._scheduledInsert = run.scheduleOnce('render', this, '_insertElement', fn); + }, + + _insertElement: function (fn) { + this._scheduledInsert = null; + this.currentState.insertElement(this, fn); + }, + + /** + Appends the view's element to the document body. If the view does + not have an HTML representation yet, `createElement()` will be called + automatically. + + If your application uses the `rootElement` property, you must append + the view within that element. Rendering views outside of the `rootElement` + is not supported. + + Note that this method just schedules the view to be appended; the DOM + element will not be appended to the document body until all bindings have + finished synchronizing. + + @method append + @return {Ember.View} receiver + */ + append: function() { + return this.appendTo(document.body); + }, + + /** + Removes the view's element from the element to which it is attached. + + @method remove + @return {Ember.View} receiver + */ + remove: function() { + // What we should really do here is wait until the end of the run loop + // to determine if the element has been re-appended to a different + // element. + // In the interim, we will just re-render if that happens. It is more + // important than elements get garbage collected. + if (!this.removedFromDOM) { this.destroyElement(); } + this.invokeRecursively(function(view) { + if (view.clearRenderedChildren) { view.clearRenderedChildren(); } + }); + }, + + elementId: null, + + /** + Attempts to discover the element in the parent element. The default + implementation looks for an element with an ID of `elementId` (or the + view's guid if `elementId` is null). You can override this method to + provide your own form of lookup. For example, if you want to discover your + element using a CSS class name instead of an ID. + + @method findElementInParentElement + @param {DOMElement} parentElement The parent's DOM element + @return {DOMElement} The discovered element + */ + findElementInParentElement: function(parentElem) { + var id = "#" + this.elementId; + return jQuery(id)[0] || jQuery(id, parentElem)[0]; + }, + + /** + Creates a DOM representation of the view and all of its + child views by recursively calling the `render()` method. + + After the element has been created, `didInsertElement` will + be called on this view and all of its child views. + + @method createElement + @return {Ember.View} receiver + */ + createElement: function() { + if (get(this, 'element')) { return this; } + + var buffer = this.renderToBuffer(); + set(this, 'element', buffer.element()); + + return this; + }, + + /** + Called when a view is going to insert an element into the DOM. + + @event willInsertElement + */ + willInsertElement: Ember.K, + + /** + Called when the element of the view has been inserted into the DOM + or after the view was re-rendered. Override this function to do any + set up that requires an element in the document body. + + @event didInsertElement + */ + didInsertElement: Ember.K, + + /** + Called when the view is about to rerender, but before anything has + been torn down. This is a good opportunity to tear down any manual + observers you have installed based on the DOM state + + @event willClearRender + */ + willClearRender: Ember.K, + + /** + Run this callback on the current view (unless includeSelf is false) and recursively on child views. + + @method invokeRecursively + @param fn {Function} + @param includeSelf {Boolean} Includes itself if true. + @private + */ + invokeRecursively: function(fn, includeSelf) { + var childViews = (includeSelf === false) ? this._childViews : [this]; + var currentViews, view, currentChildViews; + + while (childViews.length) { + currentViews = childViews.slice(); + childViews = []; + + for (var i=0, l=currentViews.length; i` tag for views. + + @property tagName + @type String + @default null + */ + + // We leave this null by default so we can tell the difference between + // the default case and a user-specified tag. + tagName: null, + + /** + The WAI-ARIA role of the control represented by this view. For example, a + button may have a role of type 'button', or a pane may have a role of + type 'alertdialog'. This property is used by assistive software to help + visually challenged users navigate rich web applications. + + The full list of valid WAI-ARIA roles is available at: + [http://www.w3.org/TR/wai-aria/roles#roles_categorization](http://www.w3.org/TR/wai-aria/roles#roles_categorization) + + @property ariaRole + @type String + @default null + */ + ariaRole: null, + + /** + Standard CSS class names to apply to the view's outer element. This + property automatically inherits any class names defined by the view's + superclasses as well. + + @property classNames + @type Array + @default ['ember-view'] + */ + classNames: ['ember-view'], + + /** + A list of properties of the view to apply as class names. If the property + is a string value, the value of that string will be applied as a class + name. + + ```javascript + // Applies the 'high' class to the view element + Ember.View.extend({ + classNameBindings: ['priority'] + priority: 'high' + }); + ``` + + If the value of the property is a Boolean, the name of that property is + added as a dasherized class name. + + ```javascript + // Applies the 'is-urgent' class to the view element + Ember.View.extend({ + classNameBindings: ['isUrgent'] + isUrgent: true + }); + ``` + + If you would prefer to use a custom value instead of the dasherized + property name, you can pass a binding like this: + + ```javascript + // Applies the 'urgent' class to the view element + Ember.View.extend({ + classNameBindings: ['isUrgent:urgent'] + isUrgent: true + }); + ``` + + This list of properties is inherited from the view's superclasses as well. + + @property classNameBindings + @type Array + @default [] + */ + classNameBindings: EMPTY_ARRAY, + + /** + A list of properties of the view to apply as attributes. If the property is + a string value, the value of that string will be applied as the attribute. + + ```javascript + // Applies the type attribute to the element + // with the value "button", like
    + Ember.View.extend({ + attributeBindings: ['type'], + type: 'button' + }); + ``` + + If the value of the property is a Boolean, the name of that property is + added as an attribute. + + ```javascript + // Renders something like
    + Ember.View.extend({ + attributeBindings: ['enabled'], + enabled: true + }); + ``` + + @property attributeBindings + */ + attributeBindings: EMPTY_ARRAY, + + // ....................................................... + // CORE DISPLAY METHODS + // + + /** + Setup a view, but do not finish waking it up. + + * configure `childViews` + * register the view with the global views hash, which is used for event + dispatch + + @method init + @private + */ + init: function() { + this.elementId = this.elementId || guidFor(this); + + this._super(); + + // setup child views. be sure to clone the child views array first + this._childViews = this._childViews.slice(); + + this.classNameBindings = A(this.classNameBindings.slice()); + + this.classNames = A(this.classNames.slice()); + }, + + appendChild: function(view, options) { + return this.currentState.appendChild(this, view, options); + }, + + /** + Removes the child view from the parent view. + + @method removeChild + @param {Ember.View} view + @return {Ember.View} receiver + */ + removeChild: function(view) { + // If we're destroying, the entire subtree will be + // freed, and the DOM will be handled separately, + // so no need to mess with childViews. + if (this.isDestroying) { return; } + + // update parent node + set(view, '_parentView', null); + + // remove view from childViews array. + var childViews = this._childViews; + + a_removeObject(childViews, view); + + this.propertyDidChange('childViews'); // HUH?! what happened to will change? + + return this; + }, + + /** + Removes all children from the `parentView`. + + @method removeAllChildren + @return {Ember.View} receiver + */ + removeAllChildren: function() { + return this.mutateChildViews(function(parentView, view) { + parentView.removeChild(view); + }); + }, + + destroyAllChildren: function() { + return this.mutateChildViews(function(parentView, view) { + view.destroy(); + }); + }, + + /** + Removes the view from its `parentView`, if one is found. Otherwise + does nothing. + + @method removeFromParent + @return {Ember.View} receiver + */ + removeFromParent: function() { + var parent = this._parentView; + + // Remove DOM element from parent + this.remove(); + + if (parent) { parent.removeChild(this); } + return this; + }, + + /** + You must call `destroy` on a view to destroy the view (and all of its + child views). This will remove the view from any parent node, then make + sure that the DOM element managed by the view can be released by the + memory manager. + + @method destroy + */ + destroy: function() { + var childViews = this._childViews, + // get parentView before calling super because it'll be destroyed + nonVirtualParentView = get(this, 'parentView'), + viewName = this.viewName, + childLen, i; + + if (!this._super()) { return; } + + childLen = childViews.length; + for (i=childLen-1; i>=0; i--) { + childViews[i].removedFromDOM = true; + } + + // remove from non-virtual parent view if viewName was specified + if (viewName && nonVirtualParentView) { + nonVirtualParentView.set(viewName, null); + } + + childLen = childViews.length; + for (i=childLen-1; i>=0; i--) { + childViews[i].destroy(); + } + + return this; + }, + + /** + Instantiates a view to be added to the childViews array during view + initialization. You generally will not call this method directly unless + you are overriding `createChildViews()`. Note that this method will + automatically configure the correct settings on the new view instance to + act as a child of the parent. + + @method createChildView + @param {Class|String} viewClass + @param {Hash} [attrs] Attributes to add + @return {Ember.View} new instance + */ + createChildView: function(view, attrs) { + if (!view) { + throw new TypeError("createChildViews first argument must exist"); + } + + if (view.isView && view._parentView === this && view.container === this.container) { + return view; + } + + attrs = attrs || {}; + attrs._parentView = this; + + if (CoreView.detect(view)) { + attrs.templateData = attrs.templateData || get(this, 'templateData'); + + attrs.container = this.container; + view = view.create(attrs); + + // don't set the property on a virtual view, as they are invisible to + // consumers of the view API + if (view.viewName) { + set(get(this, 'concreteView'), view.viewName, view); + } + } else if ('string' === typeof view) { + var fullName = 'view:' + view; + var ViewKlass = this.container.lookupFactory(fullName); + + + attrs.templateData = get(this, 'templateData'); + view = ViewKlass.create(attrs); + } else { + attrs.container = this.container; + + if (!get(view, 'templateData')) { + attrs.templateData = get(this, 'templateData'); + } + + setProperties(view, attrs); + + } + + return view; + }, + + becameVisible: Ember.K, + becameHidden: Ember.K, + + /** + When the view's `isVisible` property changes, toggle the visibility + element of the actual DOM element. + + @method _isVisibleDidChange + @private + */ + _isVisibleDidChange: observer('isVisible', function() { + if (this._isVisible === get(this, 'isVisible')) { return ; } + run.scheduleOnce('render', this, this._toggleVisibility); + }), + + _toggleVisibility: function() { + var $el = this.$(); + if (!$el) { return; } + + var isVisible = get(this, 'isVisible'); + + if (this._isVisible === isVisible) { return ; } + + $el.toggle(isVisible); + + this._isVisible = isVisible; + + if (this._isAncestorHidden()) { return; } + + if (isVisible) { + this._notifyBecameVisible(); + } else { + this._notifyBecameHidden(); + } + }, + + _notifyBecameVisible: function() { + this.trigger('becameVisible'); + + this.forEachChildView(function(view) { + var isVisible = get(view, 'isVisible'); + + if (isVisible || isVisible === null) { + view._notifyBecameVisible(); + } + }); + }, + + _notifyBecameHidden: function() { + this.trigger('becameHidden'); + this.forEachChildView(function(view) { + var isVisible = get(view, 'isVisible'); + + if (isVisible || isVisible === null) { + view._notifyBecameHidden(); + } + }); + }, + + _isAncestorHidden: function() { + var parent = get(this, 'parentView'); + + while (parent) { + if (get(parent, 'isVisible') === false) { return true; } + + parent = get(parent, 'parentView'); + } + + return false; + }, + + clearBuffer: function() { + this.invokeRecursively(nullViewsBuffer); + }, + + transitionTo: function(state, children) { + var priorState = this.currentState, + currentState = this.currentState = this.states[state]; + this.state = state; + + if (priorState && priorState.exit) { priorState.exit(this); } + if (currentState.enter) { currentState.enter(this); } + if (state === 'inDOM') { meta(this).cache.element = undefined; } + + if (children !== false) { + this.forEachChildView(function(view) { + view.transitionTo(state); + }); + } + }, + + // ....................................................... + // EVENT HANDLING + // + + /** + Handle events from `Ember.EventDispatcher` + + @method handleEvent + @param eventName {String} + @param evt {Event} + @private + */ + handleEvent: function(eventName, evt) { + return this.currentState.handleEvent(this, eventName, evt); + }, + + registerObserver: function(root, path, target, observer) { + if (!observer && 'function' === typeof target) { + observer = target; + target = null; + } + + if (!root || typeof root !== 'object') { + return; + } + + var view = this, + stateCheckedObserver = function() { + view.currentState.invokeObserver(this, observer); + }, + scheduledObserver = function() { + run.scheduleOnce('render', this, stateCheckedObserver); + }; + + addObserver(root, path, target, scheduledObserver); + + this.one('willClearRender', function() { + removeObserver(root, path, target, scheduledObserver); + }); + } + + }); + + /* + Describe how the specified actions should behave in the various + states that a view can exist in. Possible states: + + * preRender: when a view is first instantiated, and after its + element was destroyed, it is in the preRender state + * inBuffer: once a view has been rendered, but before it has + been inserted into the DOM, it is in the inBuffer state + * hasElement: the DOM representation of the view is created, + and is ready to be inserted + * inDOM: once a view has been inserted into the DOM it is in + the inDOM state. A view spends the vast majority of its + existence in this state. + * destroyed: once a view has been destroyed (using the destroy + method), it is in this state. No further actions can be invoked + on a destroyed view. + */ + + // in the destroyed state, everything is illegal + + // before rendering has begun, all legal manipulations are noops. + + // inside the buffer, legal manipulations are done on the buffer + + // once the view has been inserted into the DOM, legal manipulations + // are done on the DOM element. + + function notifyMutationListeners() { + run.once(View, 'notifyMutationListeners'); + } + + var DOMManager = { + prepend: function(view, html) { + view.$().prepend(html); + notifyMutationListeners(); + }, + + after: function(view, html) { + view.$().after(html); + notifyMutationListeners(); + }, + + html: function(view, html) { + view.$().html(html); + notifyMutationListeners(); + }, + + replace: function(view) { + var element = get(view, 'element'); + + set(view, 'element', null); + + view._insertElementLater(function() { + jQuery(element).replaceWith(get(view, 'element')); + notifyMutationListeners(); + }); + }, + + remove: function(view) { + view.$().remove(); + notifyMutationListeners(); + }, + + empty: function(view) { + view.$().empty(); + notifyMutationListeners(); + } + }; + + View.reopen({ + domManager: DOMManager + }); + + View.reopenClass({ + + /** + Parse a path and return an object which holds the parsed properties. + + For example a path like "content.isEnabled:enabled:disabled" will return the + following object: + + ```javascript + { + path: "content.isEnabled", + className: "enabled", + falsyClassName: "disabled", + classNames: ":enabled:disabled" + } + ``` + + @method _parsePropertyPath + @static + @private + */ + _parsePropertyPath: function(path) { + var split = path.split(':'), + propertyPath = split[0], + classNames = "", + className, + falsyClassName; + + // check if the property is defined as prop:class or prop:trueClass:falseClass + if (split.length > 1) { + className = split[1]; + if (split.length === 3) { falsyClassName = split[2]; } + + classNames = ':' + className; + if (falsyClassName) { classNames += ":" + falsyClassName; } + } + + return { + path: propertyPath, + classNames: classNames, + className: (className === '') ? undefined : className, + falsyClassName: falsyClassName + }; + }, + + /** + Get the class name for a given value, based on the path, optional + `className` and optional `falsyClassName`. + + - if a `className` or `falsyClassName` has been specified: + - if the value is truthy and `className` has been specified, + `className` is returned + - if the value is falsy and `falsyClassName` has been specified, + `falsyClassName` is returned + - otherwise `null` is returned + - if the value is `true`, the dasherized last part of the supplied path + is returned + - if the value is not `false`, `undefined` or `null`, the `value` + is returned + - if none of the above rules apply, `null` is returned + + @method _classStringForValue + @param path + @param val + @param className + @param falsyClassName + @static + @private + */ + _classStringForValue: function(path, val, className, falsyClassName) { + // When using the colon syntax, evaluate the truthiness or falsiness + // of the value to determine which className to return + if (className || falsyClassName) { + if (className && !!val) { + return className; + + } else if (falsyClassName && !val) { + return falsyClassName; + + } else { + return null; + } + + // If value is a Boolean and true, return the dasherized property + // name. + } else if (val === true) { + // Normalize property path to be suitable for use + // as a class name. For exaple, content.foo.barBaz + // becomes bar-baz. + var parts = path.split('.'); + return dasherize(parts[parts.length-1]); + + // If the value is not false, undefined, or null, return the current + // value of the property. + } else if (val !== false && val != null) { + return val; + + // Nothing to display. Return null so that the old class is removed + // but no new class is added. + } else { + return null; + } + } + }); + + var mutation = EmberObject.extend(Evented).create(); + + View.addMutationListener = function(callback) { + mutation.on('change', callback); + }; + + View.removeMutationListener = function(callback) { + mutation.off('change', callback); + }; + + View.notifyMutationListeners = function() { + mutation.trigger('change'); + }; + + /** + Global views hash + + @property views + @static + @type Hash + */ + View.views = {}; + + // If someone overrides the child views computed property when + // defining their class, we want to be able to process the user's + // supplied childViews and then restore the original computed property + // at view initialization time. This happens in Ember.ContainerView's init + // method. + View.childViewsProperty = childViewsProperty; + + View.applyAttributeBindings = function(elem, name, value) { + var type = typeOf(value); + + // if this changes, also change the logic in ember-handlebars/lib/helpers/binding.js + if (name !== 'value' && (type === 'string' || (type === 'number' && !isNaN(value)))) { + if (value !== elem.attr(name)) { + elem.attr(name, value); + } + } else if (name === 'value' || type === 'boolean') { + if (isNone(value) || value === false) { + // `null`, `undefined` or `false` should remove attribute + elem.removeAttr(name); + elem.prop(name, ''); + } else if (value !== elem.prop(name)) { + // value should always be properties + elem.prop(name, value); + } + } else if (!value) { + elem.removeAttr(name); + } + }; + + __exports__.CoreView = CoreView; + __exports__.View = View; + __exports__.ViewCollection = ViewCollection; + }); +})(); + +(function() { +define("metamorph", + [], + function() { + "use strict"; + // ========================================================================== + // Project: metamorph + // Copyright: ©2014 Tilde, Inc. All rights reserved. + // ========================================================================== + + var K = function() {}, + guid = 0, + disableRange = (function(){ + if ('undefined' !== typeof MetamorphENV) { + return MetamorphENV.DISABLE_RANGE_API; + } else if ('undefined' !== ENV) { + return ENV.DISABLE_RANGE_API; + } else { + return false; + } + })(), + + // Feature-detect the W3C range API, the extended check is for IE9 which only partially supports ranges + supportsRange = (!disableRange) && typeof document !== 'undefined' && ('createRange' in document) && (typeof Range !== 'undefined') && Range.prototype.createContextualFragment, + + // Internet Explorer prior to 9 does not allow setting innerHTML if the first element + // is a "zero-scope" element. This problem can be worked around by making + // the first node an invisible text node. We, like Modernizr, use ­ + needsShy = typeof document !== 'undefined' && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "
    "; + testEl.firstChild.innerHTML = ""; + return testEl.firstChild.innerHTML === ''; + })(), + + + // IE 8 (and likely earlier) likes to move whitespace preceeding + // a script tag to appear after it. This means that we can + // accidentally remove whitespace when updating a morph. + movesWhitespace = document && (function() { + var testEl = document.createElement('div'); + testEl.innerHTML = "Test: Value"; + return testEl.childNodes[0].nodeValue === 'Test:' && + testEl.childNodes[2].nodeValue === ' Value'; + })(); + + // Constructor that supports either Metamorph('foo') or new + // Metamorph('foo'); + // + // Takes a string of HTML as the argument. + + var Metamorph = function(html) { + var self; + + if (this instanceof Metamorph) { + self = this; + } else { + self = new K(); + } + + self.innerHTML = html; + var myGuid = 'metamorph-'+(guid++); + self.start = myGuid + '-start'; + self.end = myGuid + '-end'; + + return self; + }; + + K.prototype = Metamorph.prototype; + + var rangeFor, htmlFunc, removeFunc, outerHTMLFunc, appendToFunc, afterFunc, prependFunc, startTagFunc, endTagFunc; + + outerHTMLFunc = function() { + return this.startTag() + this.innerHTML + this.endTag(); + }; + + startTagFunc = function() { + /* + * We replace chevron by its hex code in order to prevent escaping problems. + * Check this thread for more explaination: + * http://stackoverflow.com/questions/8231048/why-use-x3c-instead-of-when-generating-html-from-javascript + */ + return "hi"; + * div.firstChild.firstChild.tagName //=> "" + * + * If our script markers are inside such a node, we need to find that + * node and use *it* as the marker. + */ + var realNode = function(start) { + while (start.parentNode.tagName === "") { + start = start.parentNode; + } + + return start; + }; + + /* + * When automatically adding a tbody, Internet Explorer inserts the + * tbody immediately before the first . Other browsers create it + * before the first node, no matter what. + * + * This means the the following code: + * + * div = document.createElement("div"); + * div.innerHTML = "
    hi
    + * + * Generates the following DOM in IE: + * + * + div + * + table + * - script id='first' + * + tbody + * + tr + * + td + * - "hi" + * - script id='last' + * + * Which means that the two script tags, even though they were + * inserted at the same point in the hierarchy in the original + * HTML, now have different parents. + * + * This code reparents the first script tag by making it the tbody's + * first child. + * + */ + var fixParentage = function(start, end) { + if (start.parentNode !== end.parentNode) { + end.parentNode.insertBefore(start, end.parentNode.firstChild); + } + }; + + htmlFunc = function(html, outerToo) { + // get the real starting node. see realNode for details. + var start = realNode(document.getElementById(this.start)); + var end = document.getElementById(this.end); + var parentNode = end.parentNode; + var node, nextSibling, last; + + // make sure that the start and end nodes share the same + // parent. If not, fix it. + fixParentage(start, end); + + // remove all of the nodes after the starting placeholder and + // before the ending placeholder. + node = start.nextSibling; + while (node) { + nextSibling = node.nextSibling; + last = node === end; + + // if this is the last node, and we want to remove it as well, + // set the `end` node to the next sibling. This is because + // for the rest of the function, we insert the new nodes + // before the end (note that insertBefore(node, null) is + // the same as appendChild(node)). + // + // if we do not want to remove it, just break. + if (last) { + if (outerToo) { end = node.nextSibling; } else { break; } + } + + node.parentNode.removeChild(node); + + // if this is the last node and we didn't break before + // (because we wanted to remove the outer nodes), break + // now. + if (last) { break; } + + node = nextSibling; + } + + // get the first node for the HTML string, even in cases like + // tables and lists where a simple innerHTML on a div would + // swallow some of the content. + node = firstNodeFor(start.parentNode, html); + + if (outerToo) { + start.parentNode.removeChild(start); + } + + // copy the nodes for the HTML between the starting and ending + // placeholder. + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, end); + node = nextSibling; + } + }; + + // remove the nodes in the DOM representing this metamorph. + // + // this includes the starting and ending placeholders. + removeFunc = function() { + var start = realNode(document.getElementById(this.start)); + var end = document.getElementById(this.end); + + this.html(''); + start.parentNode.removeChild(start); + end.parentNode.removeChild(end); + }; + + appendToFunc = function(parentNode) { + var node = firstNodeFor(parentNode, this.outerHTML()); + var nextSibling; + + while (node) { + nextSibling = node.nextSibling; + parentNode.appendChild(node); + node = nextSibling; + } + }; + + afterFunc = function(html) { + // get the real starting node. see realNode for details. + var end = document.getElementById(this.end); + var insertBefore = end.nextSibling; + var parentNode = end.parentNode; + var nextSibling; + var node; + + // get the first node for the HTML string, even in cases like + // tables and lists where a simple innerHTML on a div would + // swallow some of the content. + node = firstNodeFor(parentNode, html); + + // copy the nodes for the HTML between the starting and ending + // placeholder. + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, insertBefore); + node = nextSibling; + } + }; + + prependFunc = function(html) { + var start = document.getElementById(this.start); + var parentNode = start.parentNode; + var nextSibling; + var node; + + node = firstNodeFor(parentNode, html); + var insertBefore = start.nextSibling; + + while (node) { + nextSibling = node.nextSibling; + parentNode.insertBefore(node, insertBefore); + node = nextSibling; + } + }; + } + + Metamorph.prototype.html = function(html) { + this.checkRemoved(); + if (html === undefined) { return this.innerHTML; } + + htmlFunc.call(this, html); + + this.innerHTML = html; + }; + + Metamorph.prototype.replaceWith = function(html) { + this.checkRemoved(); + htmlFunc.call(this, html, true); + }; + + Metamorph.prototype.remove = removeFunc; + Metamorph.prototype.outerHTML = outerHTMLFunc; + Metamorph.prototype.appendTo = appendToFunc; + Metamorph.prototype.after = afterFunc; + Metamorph.prototype.prepend = prependFunc; + Metamorph.prototype.startTag = startTagFunc; + Metamorph.prototype.endTag = endTagFunc; + + Metamorph.prototype.isRemoved = function() { + var before = document.getElementById(this.start); + var after = document.getElementById(this.end); + + return !before || !after; + }; + + Metamorph.prototype.checkRemoved = function() { + if (this.isRemoved()) { + throw new Error("Cannot perform operations on a Metamorph that is not in the DOM."); + } + }; + + return Metamorph; + }); + +})(); + +(function() { +define("ember-handlebars-compiler", + ["ember-metal/core","exports"], + function(__dependency1__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars-compiler + */ + + var Ember = __dependency1__["default"]; + + // ES6Todo: you'll need to import debugger once debugger is es6'd. + if (typeof Ember.assert === 'undefined') { Ember.assert = function(){}; }; + if (typeof Ember.FEATURES === 'undefined') { Ember.FEATURES = { isEnabled: function(){} }; }; + + var objectCreate = Object.create || function(parent) { + function F() {} + F.prototype = parent; + return new F(); + }; + + // set up for circular references later + var View, Component; + + // ES6Todo: when ember-debug is es6'ed import this. + // var emberAssert = Ember.assert; + var Handlebars = (Ember.imports && Ember.imports.Handlebars) || (this && this.Handlebars); + if (!Handlebars && typeof require === 'function') { + Handlebars = require('handlebars'); + } + + + + /** + Prepares the Handlebars templating library for use inside Ember's view + system. + + The `Ember.Handlebars` object is the standard Handlebars library, extended to + use Ember's `get()` method instead of direct property access, which allows + computed properties to be used inside templates. + + To create an `Ember.Handlebars` template, call `Ember.Handlebars.compile()`. + This will return a function that can be used by `Ember.View` for rendering. + + @class Handlebars + @namespace Ember + */ + var EmberHandlebars = Ember.Handlebars = objectCreate(Handlebars); + + /** + Register a bound helper or custom view helper. + + ## Simple bound helper example + + ```javascript + Ember.Handlebars.helper('capitalize', function(value) { + return value.toUpperCase(); + }); + ``` + + The above bound helper can be used inside of templates as follows: + + ```handlebars + {{capitalize name}} + ``` + + In this case, when the `name` property of the template's context changes, + the rendered value of the helper will update to reflect this change. + + For more examples of bound helpers, see documentation for + `Ember.Handlebars.registerBoundHelper`. + + ## Custom view helper example + + Assuming a view subclass named `App.CalendarView` were defined, a helper + for rendering instances of this view could be registered as follows: + + ```javascript + Ember.Handlebars.helper('calendar', App.CalendarView): + ``` + + The above bound helper can be used inside of templates as follows: + + ```handlebars + {{calendar}} + ``` + + Which is functionally equivalent to: + + ```handlebars + {{view App.CalendarView}} + ``` + + Options in the helper will be passed to the view in exactly the same + manner as with the `view` helper. + + @method helper + @for Ember.Handlebars + @param {String} name + @param {Function|Ember.View} function or view class constructor + @param {String} dependentKeys* + */ + EmberHandlebars.helper = function(name, value) { + if (!View) { View = requireModule('ember-views/views/view')['View']; } // ES6TODO: stupid circular dep + if (!Component) { Component = requireModule('ember-views/views/component')['default']; } // ES6TODO: stupid circular dep + + + if (View.detect(value)) { + EmberHandlebars.registerHelper(name, EmberHandlebars.makeViewHelper(value)); + } else { + EmberHandlebars.registerBoundHelper.apply(null, arguments); + } + }; + + /** + Returns a helper function that renders the provided ViewClass. + + Used internally by Ember.Handlebars.helper and other methods + involving helper/component registration. + + @private + @method makeViewHelper + @for Ember.Handlebars + @param {Function} ViewClass view class constructor + */ + EmberHandlebars.makeViewHelper = function(ViewClass) { + return function(options) { + return EmberHandlebars.helpers.view.call(this, ViewClass, options); + }; + }; + + /** + @class helpers + @namespace Ember.Handlebars + */ + EmberHandlebars.helpers = objectCreate(Handlebars.helpers); + + /** + Override the the opcode compiler and JavaScript compiler for Handlebars. + + @class Compiler + @namespace Ember.Handlebars + @private + @constructor + */ + EmberHandlebars.Compiler = function() {}; + + // Handlebars.Compiler doesn't exist in runtime-only + if (Handlebars.Compiler) { + EmberHandlebars.Compiler.prototype = objectCreate(Handlebars.Compiler.prototype); + } + + EmberHandlebars.Compiler.prototype.compiler = EmberHandlebars.Compiler; + + /** + @class JavaScriptCompiler + @namespace Ember.Handlebars + @private + @constructor + */ + EmberHandlebars.JavaScriptCompiler = function() {}; + + // Handlebars.JavaScriptCompiler doesn't exist in runtime-only + if (Handlebars.JavaScriptCompiler) { + EmberHandlebars.JavaScriptCompiler.prototype = objectCreate(Handlebars.JavaScriptCompiler.prototype); + EmberHandlebars.JavaScriptCompiler.prototype.compiler = EmberHandlebars.JavaScriptCompiler; + } + + + EmberHandlebars.JavaScriptCompiler.prototype.namespace = "Ember.Handlebars"; + + EmberHandlebars.JavaScriptCompiler.prototype.initializeBuffer = function() { + return "''"; + }; + + /** + Override the default buffer for Ember Handlebars. By default, Handlebars + creates an empty String at the beginning of each invocation and appends to + it. Ember's Handlebars overrides this to append to a single shared buffer. + + @private + @method appendToBuffer + @param string {String} + */ + EmberHandlebars.JavaScriptCompiler.prototype.appendToBuffer = function(string) { + return "data.buffer.push("+string+");"; + }; + + // Hacks ahead: + // Handlebars presently has a bug where the `blockHelperMissing` hook + // doesn't get passed the name of the missing helper name, but rather + // gets passed the value of that missing helper evaluated on the current + // context, which is most likely `undefined` and totally useless. + // + // So we alter the compiled template function to pass the name of the helper + // instead, as expected. + // + // This can go away once the following is closed: + // https://github.com/wycats/handlebars.js/issues/634 + + var DOT_LOOKUP_REGEX = /helpers\.(.*?)\)/, + BRACKET_STRING_LOOKUP_REGEX = /helpers\['(.*?)'/, + INVOCATION_SPLITTING_REGEX = /(.*blockHelperMissing\.call\(.*)(stack[0-9]+)(,.*)/; + + EmberHandlebars.JavaScriptCompiler.stringifyLastBlockHelperMissingInvocation = function(source) { + var helperInvocation = source[source.length - 1], + helperName = (DOT_LOOKUP_REGEX.exec(helperInvocation) || BRACKET_STRING_LOOKUP_REGEX.exec(helperInvocation))[1], + matches = INVOCATION_SPLITTING_REGEX.exec(helperInvocation); + + source[source.length - 1] = matches[1] + "'" + helperName + "'" + matches[3]; + }; + + var stringifyBlockHelperMissing = EmberHandlebars.JavaScriptCompiler.stringifyLastBlockHelperMissingInvocation; + + var originalBlockValue = EmberHandlebars.JavaScriptCompiler.prototype.blockValue; + EmberHandlebars.JavaScriptCompiler.prototype.blockValue = function() { + originalBlockValue.apply(this, arguments); + stringifyBlockHelperMissing(this.source); + }; + + var originalAmbiguousBlockValue = EmberHandlebars.JavaScriptCompiler.prototype.ambiguousBlockValue; + EmberHandlebars.JavaScriptCompiler.prototype.ambiguousBlockValue = function() { + originalAmbiguousBlockValue.apply(this, arguments); + stringifyBlockHelperMissing(this.source); + }; + + /** + Rewrite simple mustaches from `{{foo}}` to `{{bind "foo"}}`. This means that + all simple mustaches in Ember's Handlebars will also set up an observer to + keep the DOM up to date when the underlying property changes. + + @private + @method mustache + @for Ember.Handlebars.Compiler + @param mustache + */ + EmberHandlebars.Compiler.prototype.mustache = function(mustache) { + if (!(mustache.params.length || mustache.hash)) { + var id = new Handlebars.AST.IdNode([{ part: '_triageMustache' }]); + + // Update the mustache node to include a hash value indicating whether the original node + // was escaped. This will allow us to properly escape values when the underlying value + // changes and we need to re-render the value. + if (!mustache.escaped) { + mustache.hash = mustache.hash || new Handlebars.AST.HashNode([]); + mustache.hash.pairs.push(["unescaped", new Handlebars.AST.StringNode("true")]); + } + mustache = new Handlebars.AST.MustacheNode([id].concat([mustache.id]), mustache.hash, !mustache.escaped); + } + + return Handlebars.Compiler.prototype.mustache.call(this, mustache); + }; + + /** + Used for precompilation of Ember Handlebars templates. This will not be used + during normal app execution. + + @method precompile + @for Ember.Handlebars + @static + @param {String} string The template to precompile + @param {Boolean} asObject optional parameter, defaulting to true, of whether or not the + compiled template should be returned as an Object or a String + */ + EmberHandlebars.precompile = function(string, asObject) { + var ast = Handlebars.parse(string); + + var options = { + knownHelpers: { + action: true, + unbound: true, + 'bind-attr': true, + template: true, + view: true, + _triageMustache: true + }, + data: true, + stringParams: true + }; + + asObject = asObject === undefined ? true : asObject; + + var environment = new EmberHandlebars.Compiler().compile(ast, options); + return new EmberHandlebars.JavaScriptCompiler().compile(environment, options, undefined, asObject); + }; + + // We don't support this for Handlebars runtime-only + if (Handlebars.compile) { + /** + The entry point for Ember Handlebars. This replaces the default + `Handlebars.compile` and turns on template-local data and String + parameters. + + @method compile + @for Ember.Handlebars + @static + @param {String} string The template to compile + @return {Function} + */ + EmberHandlebars.compile = function(string) { + var ast = Handlebars.parse(string); + var options = { data: true, stringParams: true }; + var environment = new EmberHandlebars.Compiler().compile(ast, options); + var templateSpec = new EmberHandlebars.JavaScriptCompiler().compile(environment, options, undefined, true); + + var template = EmberHandlebars.template(templateSpec); + template.isMethod = false; //Make sure we don't wrap templates with ._super + + return template; + }; + } + + __exports__["default"] = EmberHandlebars; + }); +})(); + +(function() { +define("ember-handlebars/component_lookup", + ["ember-runtime/system/object","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var EmberObject = __dependency1__["default"]; + + var ComponentLookup = EmberObject.extend({ + lookupFactory: function(name, container) { + + container = container || this.container; + + var fullName = 'component:' + name, + templateFullName = 'template:components/' + name, + templateRegistered = container && container.has(templateFullName); + + if (templateRegistered) { + container.injection(fullName, 'layout', templateFullName); + } + + var Component = container.lookupFactory(fullName); + + // Only treat as a component if either the component + // or a template has been registered. + if (templateRegistered || Component) { + if (!Component) { + container.register(fullName, Ember.Component); + Component = container.lookupFactory(fullName); + } + return Component; + } + } + }); + + __exports__["default"] = ComponentLookup; + }); +define("ember-handlebars/controls", + ["ember-handlebars/controls/checkbox","ember-handlebars/controls/text_field","ember-handlebars/controls/text_area","ember-metal/core","ember-handlebars-compiler","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + var Checkbox = __dependency1__["default"]; + var TextField = __dependency2__["default"]; + var TextArea = __dependency3__["default"]; + + var Ember = __dependency4__["default"]; + // Ember.assert + // var emberAssert = Ember.assert; + + var EmberHandlebars = __dependency5__["default"]; + var helpers = EmberHandlebars.helpers; + /** + @module ember + @submodule ember-handlebars-compiler + */ + + /** + + The `{{input}}` helper inserts an HTML `` tag into the template, + with a `type` value of either `text` or `checkbox`. If no `type` is provided, + `text` will be the default value applied. The attributes of `{{input}}` + match those of the native HTML tag as closely as possible for these two types. + + ## Use as text field + An `{{input}}` with no `type` or a `type` of `text` will render an HTML text input. + The following HTML attributes can be set via the helper: + + + + + + + + + + + + +
    `readonly``required``autofocus`
    `value``placeholder``disabled`
    `size``tabindex``maxlength`
    `name``min``max`
    `pattern``accept``autocomplete`
    `autosave``formaction``formenctype`
    `formmethod``formnovalidate``formtarget`
    `height``inputmode``multiple`
    `step``width``form`
    `selectionDirection``spellcheck` 
    + + + When set to a quoted string, these values will be directly applied to the HTML + element. When left unquoted, these values will be bound to a property on the + template's current rendering context (most typically a controller instance). + + ## Unbound: + + ```handlebars + {{input value="http://www.facebook.com"}} + ``` + + + ```html + + ``` + + ## Bound: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + firstName: "Stanley", + entryNotAllowed: true + }); + ``` + + + ```handlebars + {{input type="text" value=firstName disabled=entryNotAllowed size="50"}} + ``` + + + ```html + + ``` + + ## Extension + + Internally, `{{input type="text"}}` creates an instance of `Ember.TextField`, passing + arguments from the helper to `Ember.TextField`'s `create` method. You can extend the + capablilties of text inputs in your applications by reopening this class. For example, + if you are deploying to browsers where the `required` attribute is used, you + can add this to the `TextField`'s `attributeBindings` property: + + + ```javascript + Ember.TextField.reopen({ + attributeBindings: ['required'] + }); + ``` + + Keep in mind when writing `Ember.TextField` subclasses that `Ember.TextField` + itself extends `Ember.Component`, meaning that it does NOT inherit + the `controller` of the parent view. + + See more about [Ember components](api/classes/Ember.Component.html) + + + ## Use as checkbox + + An `{{input}}` with a `type` of `checkbox` will render an HTML checkbox input. + The following HTML attributes can be set via the helper: + + * `checked` + * `disabled` + * `tabindex` + * `indeterminate` + * `name` + * `autofocus` + * `form` + + + When set to a quoted string, these values will be directly applied to the HTML + element. When left unquoted, these values will be bound to a property on the + template's current rendering context (most typically a controller instance). + + ## Unbound: + + ```handlebars + {{input type="checkbox" name="isAdmin"}} + ``` + + ```html + + ``` + + ## Bound: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + isAdmin: true + }); + ``` + + + ```handlebars + {{input type="checkbox" checked=isAdmin }} + ``` + + + ```html + + ``` + + ## Extension + + Internally, `{{input type="checkbox"}}` creates an instance of `Ember.Checkbox`, passing + arguments from the helper to `Ember.Checkbox`'s `create` method. You can extend the + capablilties of checkbox inputs in your applications by reopening this class. For example, + if you wanted to add a css class to all checkboxes in your application: + + + ```javascript + Ember.Checkbox.reopen({ + classNames: ['my-app-checkbox'] + }); + ``` + + + @method input + @for Ember.Handlebars.helpers + @param {Hash} options + */ + function inputHelper(options) { + + var hash = options.hash, + types = options.hashTypes, + inputType = hash.type, + onEvent = hash.on; + + delete hash.type; + delete hash.on; + + if (inputType === 'checkbox') { + return helpers.view.call(this, Checkbox, options); + } else { + if (inputType) { hash.type = inputType; } + hash.onEvent = onEvent || 'enter'; + return helpers.view.call(this, TextField, options); + } + } + + /** + `{{textarea}}` inserts a new instance of ` + ``` + + Bound: + + In the following example, the `writtenWords` property on `App.ApplicationController` + will be updated live as the user types 'Lots of text that IS bound' into + the text area of their browser's window. + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound" + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + ``` + + Would result in the following HTML: + + ```html + + ``` + + If you wanted a one way binding between the text area and a div tag + somewhere else on your screen, you could use `Ember.computed.oneWay`: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound", + outputWrittenWords: Ember.computed.oneWay("writtenWords") + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + +
    + {{outputWrittenWords}} +
    + ``` + + Would result in the following HTML: + + ```html + + + <-- the following div will be updated in real time as you type --> + +
    + Lots of text that IS bound +
    + ``` + + Finally, this example really shows the power and ease of Ember when two + properties are bound to eachother via `Ember.computed.alias`. Type into + either text area box and they'll both stay in sync. Note that + `Ember.computed.alias` costs more in terms of performance, so only use it when + your really binding in both directions: + + ```javascript + App.ApplicationController = Ember.Controller.extend({ + writtenWords: "Lots of text that IS bound", + twoWayWrittenWords: Ember.computed.alias("writtenWords") + }); + ``` + + ```handlebars + {{textarea value=writtenWords}} + {{textarea value=twoWayWrittenWords}} + ``` + + ```html + + + <-- both updated in real time --> + + + ``` + + ## Extension + + Internally, `{{textarea}}` creates an instance of `Ember.TextArea`, passing + arguments from the helper to `Ember.TextArea`'s `create` method. You can + extend the capabilities of text areas in your application by reopening this + class. For example, if you are deploying to browsers where the `required` + attribute is used, you can globally add support for the `required` attribute + on all `{{textarea}}`s' in your app by reopening `Ember.TextArea` or + `Ember.TextSupport` and adding it to the `attributeBindings` concatenated + property: + + ```javascript + Ember.TextArea.reopen({ + attributeBindings: ['required'] + }); + ``` + + Keep in mind when writing `Ember.TextArea` subclasses that `Ember.TextArea` + itself extends `Ember.Component`, meaning that it does NOT inherit + the `controller` of the parent view. + + See more about [Ember components](api/classes/Ember.Component.html) + + @method textarea + @for Ember.Handlebars.helpers + @param {Hash} options + */ + function textareaHelper(options) { + + var hash = options.hash, + types = options.hashTypes; + + return helpers.view.call(this, TextArea, options); + } + + __exports__.inputHelper = inputHelper; + __exports__.textareaHelper = textareaHelper; + }); +define("ember-handlebars/controls/checkbox", + ["ember-metal/property_get","ember-metal/property_set","ember-views/views/view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __exports__) { + "use strict"; + var get = __dependency1__.get; + var set = __dependency2__.set; + var View = __dependency3__.View; + + /** + @module ember + @submodule ember-handlebars + */ + + /** + The internal class used to create text inputs when the `{{input}}` + helper is used with `type` of `checkbox`. + + See [handlebars.helpers.input](/api/classes/Ember.Handlebars.helpers.html#method_input) for usage details. + + ## Direct manipulation of `checked` + + The `checked` attribute of an `Ember.Checkbox` object should always be set + through the Ember object or by interacting with its rendered element + representation via the mouse, keyboard, or touch. Updating the value of the + checkbox via jQuery will result in the checked value of the object and its + element losing synchronization. + + ## Layout and LayoutName properties + + Because HTML `input` elements are self closing `layout` and `layoutName` + properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class Checkbox + @namespace Ember + @extends Ember.View + */ + var Checkbox = View.extend({ + classNames: ['ember-checkbox'], + + tagName: 'input', + + attributeBindings: ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', + 'autofocus', 'required', 'form'], + + type: "checkbox", + checked: false, + disabled: false, + indeterminate: false, + + init: function() { + this._super(); + this.on("change", this, this._updateElementValue); + }, + + didInsertElement: function() { + this._super(); + get(this, 'element').indeterminate = !!get(this, 'indeterminate'); + }, + + _updateElementValue: function() { + set(this, 'checked', this.$().prop('checked')); + } + }); + + __exports__["default"] = Checkbox; + }); +define("ember-handlebars/controls/select", + ["ember-handlebars-compiler","ember-metal/enumerable_utils","ember-metal/property_get","ember-metal/property_set","ember-views/views/view","ember-views/views/collection_view","ember-metal/utils","ember-metal/is_none","ember-metal/computed","ember-runtime/system/native_array","ember-metal/mixin","ember-metal/properties","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __exports__) { + "use strict"; + /*jshint eqeqeq:false newcap:false */ + + /** + @module ember + @submodule ember-handlebars + */ + + var EmberHandlebars = __dependency1__["default"]; + var EnumerableUtils = __dependency2__["default"]; + var get = __dependency3__.get; + var set = __dependency4__.set; + var View = __dependency5__.View; + var CollectionView = __dependency6__["default"]; + var isArray = __dependency7__.isArray; + var isNone = __dependency8__["default"]; + var computed = __dependency9__.computed; + var A = __dependency10__.A; + var observer = __dependency11__.observer; + var defineProperty = __dependency12__.defineProperty; + + var indexOf = EnumerableUtils.indexOf, + indexesOf = EnumerableUtils.indexesOf, + forEach = EnumerableUtils.forEach, + replace = EnumerableUtils.replace, + precompileTemplate = EmberHandlebars.compile; + + var SelectOption = View.extend({ + tagName: 'option', + attributeBindings: ['value', 'selected'], + + defaultTemplate: function(context, options) { + options = { data: options.data, hash: {} }; + EmberHandlebars.helpers.bind.call(context, "view.label", options); + }, + + init: function() { + this.labelPathDidChange(); + this.valuePathDidChange(); + + this._super(); + }, + + selected: computed(function() { + var content = get(this, 'content'), + selection = get(this, 'parentView.selection'); + if (get(this, 'parentView.multiple')) { + return selection && indexOf(selection, content.valueOf()) > -1; + } else { + // Primitives get passed through bindings as objects... since + // `new Number(4) !== 4`, we use `==` below + return content == selection; + } + }).property('content', 'parentView.selection'), + + labelPathDidChange: observer('parentView.optionLabelPath', function() { + var labelPath = get(this, 'parentView.optionLabelPath'); + + if (!labelPath) { return; } + + defineProperty(this, 'label', computed(function() { + return get(this, labelPath); + }).property(labelPath)); + }), + + valuePathDidChange: observer('parentView.optionValuePath', function() { + var valuePath = get(this, 'parentView.optionValuePath'); + + if (!valuePath) { return; } + + defineProperty(this, 'value', computed(function() { + return get(this, valuePath); + }).property(valuePath)); + }) + }); + + var SelectOptgroup = CollectionView.extend({ + tagName: 'optgroup', + attributeBindings: ['label'], + + selectionBinding: 'parentView.selection', + multipleBinding: 'parentView.multiple', + optionLabelPathBinding: 'parentView.optionLabelPath', + optionValuePathBinding: 'parentView.optionValuePath', + + itemViewClassBinding: 'parentView.optionView' + }); + + /** + The `Ember.Select` view class renders a + [select](https://developer.mozilla.org/en/HTML/Element/select) HTML element, + allowing the user to choose from a list of options. + + The text and `value` property of each ` + + + ``` + + The `value` attribute of the selected `"); + return buffer; + } + +function program3(depth0,data) { + + var stack1; + stack1 = helpers.each.call(depth0, "view.groupedContent", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(4, program4, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + else { data.buffer.push(''); } + } +function program4(depth0,data) { + + + data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.groupView", {hash:{ + 'content': ("content"), + 'label': ("label") + },hashTypes:{'content': "ID",'label': "ID"},hashContexts:{'content': depth0,'label': depth0},contexts:[depth0],types:["ID"],data:data}))); + } + +function program6(depth0,data) { + + var stack1; + stack1 = helpers.each.call(depth0, "view.content", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(7, program7, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + else { data.buffer.push(''); } + } +function program7(depth0,data) { + + + data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.optionView", {hash:{ + 'content': ("") + },hashTypes:{'content': "ID"},hashContexts:{'content': depth0},contexts:[depth0],types:["ID"],data:data}))); + } + + stack1 = helpers['if'].call(depth0, "view.prompt", {hash:{},hashTypes:{},hashContexts:{},inverse:self.noop,fn:self.program(1, program1, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + stack1 = helpers['if'].call(depth0, "view.optionGroupPath", {hash:{},hashTypes:{},hashContexts:{},inverse:self.program(6, program6, data),fn:self.program(3, program3, data),contexts:[depth0],types:["ID"],data:data}); + if(stack1 || stack1 === 0) { data.buffer.push(stack1); } + return buffer; + +}), + attributeBindings: ['multiple', 'disabled', 'tabindex', 'name', 'required', 'autofocus', + 'form', 'size'], + + /** + The `multiple` attribute of the select element. Indicates whether multiple + options can be selected. + + @property multiple + @type Boolean + @default false + */ + multiple: false, + + /** + The `disabled` attribute of the select element. Indicates whether + the element is disabled from interactions. + + @property disabled + @type Boolean + @default false + */ + disabled: false, + + /** + The `required` attribute of the select element. Indicates whether + a selected option is required for form validation. + + @property required + @type Boolean + @default false + */ + required: false, + + /** + The list of options. + + If `optionLabelPath` and `optionValuePath` are not overridden, this should + be a list of strings, which will serve simultaneously as labels and values. + + Otherwise, this should be a list of objects. For instance: + + ```javascript + Ember.Select.create({ + content: A([ + { id: 1, firstName: 'Yehuda' }, + { id: 2, firstName: 'Tom' } + ]), + optionLabelPath: 'content.firstName', + optionValuePath: 'content.id' + }); + ``` + + @property content + @type Array + @default null + */ + content: null, + + /** + When `multiple` is `false`, the element of `content` that is currently + selected, if any. + + When `multiple` is `true`, an array of such elements. + + @property selection + @type Object or Array + @default null + */ + selection: null, + + /** + In single selection mode (when `multiple` is `false`), value can be used to + get the current selection's value or set the selection by it's value. + + It is not currently supported in multiple selection mode. + + @property value + @type String + @default null + */ + value: computed(function(key, value) { + if (arguments.length === 2) { return value; } + var valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''); + return valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection'); + }).property('selection'), + + /** + If given, a top-most dummy option will be rendered to serve as a user + prompt. + + @property prompt + @type String + @default null + */ + prompt: null, + + /** + The path of the option labels. See [content](/api/classes/Ember.Select.html#property_content). + + @property optionLabelPath + @type String + @default 'content' + */ + optionLabelPath: 'content', + + /** + The path of the option values. See [content](/api/classes/Ember.Select.html#property_content). + + @property optionValuePath + @type String + @default 'content' + */ + optionValuePath: 'content', + + /** + The path of the option group. + When this property is used, `content` should be sorted by `optionGroupPath`. + + @property optionGroupPath + @type String + @default null + */ + optionGroupPath: null, + + /** + The view class for optgroup. + + @property groupView + @type Ember.View + @default Ember.SelectOptgroup + */ + groupView: SelectOptgroup, + + groupedContent: computed(function() { + var groupPath = get(this, 'optionGroupPath'); + var groupedContent = A(); + var content = get(this, 'content') || []; + + forEach(content, function(item) { + var label = get(item, groupPath); + + if (get(groupedContent, 'lastObject.label') !== label) { + groupedContent.pushObject({ + label: label, + content: A() + }); + } + + get(groupedContent, 'lastObject.content').push(item); + }); + + return groupedContent; + }).property('optionGroupPath', 'content.@each'), + + /** + The view class for option. + + @property optionView + @type Ember.View + @default Ember.SelectOption + */ + optionView: SelectOption, + + _change: function() { + if (get(this, 'multiple')) { + this._changeMultiple(); + } else { + this._changeSingle(); + } + }, + + selectionDidChange: observer('selection.@each', function() { + var selection = get(this, 'selection'); + if (get(this, 'multiple')) { + if (!isArray(selection)) { + set(this, 'selection', A([selection])); + return; + } + this._selectionDidChangeMultiple(); + } else { + this._selectionDidChangeSingle(); + } + }), + + valueDidChange: observer('value', function() { + var content = get(this, 'content'), + value = get(this, 'value'), + valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''), + selectedValue = (valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection')), + selection; + + if (value !== selectedValue) { + selection = content ? content.find(function(obj) { + return value === (valuePath ? get(obj, valuePath) : obj); + }) : null; + + this.set('selection', selection); + } + }), + + + _triggerChange: function() { + var selection = get(this, 'selection'); + var value = get(this, 'value'); + + if (!isNone(selection)) { this.selectionDidChange(); } + if (!isNone(value)) { this.valueDidChange(); } + + this._change(); + }, + + _changeSingle: function() { + var selectedIndex = this.$()[0].selectedIndex, + content = get(this, 'content'), + prompt = get(this, 'prompt'); + + if (!content || !get(content, 'length')) { return; } + if (prompt && selectedIndex === 0) { set(this, 'selection', null); return; } + + if (prompt) { selectedIndex -= 1; } + set(this, 'selection', content.objectAt(selectedIndex)); + }, + + + _changeMultiple: function() { + var options = this.$('option:selected'), + prompt = get(this, 'prompt'), + offset = prompt ? 1 : 0, + content = get(this, 'content'), + selection = get(this, 'selection'); + + if (!content) { return; } + if (options) { + var selectedIndexes = options.map(function() { + return this.index - offset; + }).toArray(); + var newSelection = content.objectsAt(selectedIndexes); + + if (isArray(selection)) { + replace(selection, 0, get(selection, 'length'), newSelection); + } else { + set(this, 'selection', newSelection); + } + } + }, + + _selectionDidChangeSingle: function() { + var el = this.get('element'); + if (!el) { return; } + + var content = get(this, 'content'), + selection = get(this, 'selection'), + selectionIndex = content ? indexOf(content, selection) : -1, + prompt = get(this, 'prompt'); + + if (prompt) { selectionIndex += 1; } + if (el) { el.selectedIndex = selectionIndex; } + }, + + _selectionDidChangeMultiple: function() { + var content = get(this, 'content'), + selection = get(this, 'selection'), + selectedIndexes = content ? indexesOf(content, selection) : [-1], + prompt = get(this, 'prompt'), + offset = prompt ? 1 : 0, + options = this.$('option'), + adjusted; + + if (options) { + options.each(function() { + adjusted = this.index > -1 ? this.index - offset : -1; + this.selected = indexOf(selectedIndexes, adjusted) > -1; + }); + } + }, + + init: function() { + this._super(); + this.on("didInsertElement", this, this._triggerChange); + this.on("change", this, this._change); + } + }); + + __exports__["default"] = Select + __exports__.Select = Select; + __exports__.SelectOption = SelectOption; + __exports__.SelectOptgroup = SelectOptgroup; + }); +define("ember-handlebars/controls/text_area", + ["ember-metal/property_get","ember-views/views/component","ember-handlebars/controls/text_support","ember-metal/mixin","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-handlebars + */ + var get = __dependency1__.get; + var Component = __dependency2__["default"]; + var TextSupport = __dependency3__["default"]; + var observer = __dependency4__.observer; + + /** + The internal class used to create textarea element when the `{{textarea}}` + helper is used. + + See [handlebars.helpers.textarea](/api/classes/Ember.Handlebars.helpers.html#method_textarea) for usage details. + + ## Layout and LayoutName properties + + Because HTML `textarea` elements do not contain inner HTML the `layout` and + `layoutName` properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class TextArea + @namespace Ember + @extends Ember.Component + @uses Ember.TextSupport + */ + var TextArea = Component.extend(TextSupport, { + classNames: ['ember-text-area'], + + tagName: "textarea", + attributeBindings: ['rows', 'cols', 'name', 'selectionEnd', 'selectionStart', 'wrap'], + rows: null, + cols: null, + + _updateElementValue: observer('value', function() { + // We do this check so cursor position doesn't get affected in IE + var value = get(this, 'value'), + $el = this.$(); + if ($el && value !== $el.val()) { + $el.val(value); + } + }), + + init: function() { + this._super(); + this.on("didInsertElement", this, this._updateElementValue); + } + + }); + + __exports__["default"] = TextArea; + }); +define("ember-handlebars/controls/text_field", + ["ember-metal/property_get","ember-metal/property_set","ember-views/views/component","ember-handlebars/controls/text_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var get = __dependency1__.get; + var set = __dependency2__.set; + var Component = __dependency3__["default"]; + var TextSupport = __dependency4__["default"]; + + /** + + The internal class used to create text inputs when the `{{input}}` + helper is used with `type` of `text`. + + See [Handlebars.helpers.input](/api/classes/Ember.Handlebars.helpers.html#method_input) for usage details. + + ## Layout and LayoutName properties + + Because HTML `input` elements are self closing `layout` and `layoutName` + properties will not be applied. See [Ember.View](/api/classes/Ember.View.html)'s + layout section for more information. + + @class TextField + @namespace Ember + @extends Ember.Component + @uses Ember.TextSupport + */ + var TextField = Component.extend(TextSupport, { + + classNames: ['ember-text-field'], + tagName: "input", + attributeBindings: ['type', 'value', 'size', 'pattern', 'name', 'min', 'max', + 'accept', 'autocomplete', 'autosave', 'formaction', + 'formenctype', 'formmethod', 'formnovalidate', 'formtarget', + 'height', 'inputmode', 'list', 'multiple', 'pattern', 'step', + 'width'], + + /** + The `value` attribute of the input element. As the user inputs text, this + property is updated live. + + @property value + @type String + @default "" + */ + value: "", + + /** + The `type` attribute of the input element. + + @property type + @type String + @default "text" + */ + type: "text", + + /** + The `size` of the text field in characters. + + @property size + @type String + @default null + */ + size: null, + + /** + The `pattern` attribute of input element. + + @property pattern + @type String + @default null + */ + pattern: null, + + /** + The `min` attribute of input element used with `type="number"` or `type="range"`. + + @property min + @type String + @default null + */ + min: null, + + /** + The `max` attribute of input element used with `type="number"` or `type="range"`. + + @property max + @type String + @default null + */ + max: null + }); + + __exports__["default"] = TextField; + }); +define("ember-handlebars/controls/text_support", + ["ember-metal/property_get","ember-metal/property_set","ember-metal/mixin","ember-runtime/mixins/target_action_support","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var get = __dependency1__.get; + var set = __dependency2__.set; + var Mixin = __dependency3__.Mixin; + var TargetActionSupport = __dependency4__["default"]; + + /** + Shared mixin used by `Ember.TextField` and `Ember.TextArea`. + + @class TextSupport + @namespace Ember + @uses Ember.TargetActionSupport + @extends Ember.Mixin + @private + */ + var TextSupport = Mixin.create(TargetActionSupport, { + value: "", + + attributeBindings: ['placeholder', 'disabled', 'maxlength', 'tabindex', 'readonly', + 'autofocus', 'form', 'selectionDirection', 'spellcheck', 'required', + 'title'], + placeholder: null, + disabled: false, + maxlength: null, + + init: function() { + this._super(); + this.on("focusOut", this, this._elementValueDidChange); + this.on("change", this, this._elementValueDidChange); + this.on("paste", this, this._elementValueDidChange); + this.on("cut", this, this._elementValueDidChange); + this.on("input", this, this._elementValueDidChange); + this.on("keyUp", this, this.interpretKeyEvents); + }, + + /** + The action to be sent when the user presses the return key. + + This is similar to the `{{action}}` helper, but is fired when + the user presses the return key when editing a text field, and sends + the value of the field as the context. + + @property action + @type String + @default null + */ + action: null, + + /** + The event that should send the action. + + Options are: + + * `enter`: the user pressed enter + * `keyPress`: the user pressed a key + + @property onEvent + @type String + @default enter + */ + onEvent: 'enter', + + /** + Whether they `keyUp` event that triggers an `action` to be sent continues + propagating to other views. + + By default, when the user presses the return key on their keyboard and + the text field has an `action` set, the action will be sent to the view's + controller and the key event will stop propagating. + + If you would like parent views to receive the `keyUp` event even after an + action has been dispatched, set `bubbles` to true. + + @property bubbles + @type Boolean + @default false + */ + bubbles: false, + + interpretKeyEvents: function(event) { + var map = TextSupport.KEY_EVENTS; + var method = map[event.keyCode]; + + this._elementValueDidChange(); + if (method) { return this[method](event); } + }, + + _elementValueDidChange: function() { + set(this, 'value', this.$().val()); + }, + + /** + The action to be sent when the user inserts a new line. + + Called by the `Ember.TextSupport` mixin on keyUp if keycode matches 13. + Uses sendAction to send the `enter` action to the controller. + + @method insertNewline + @param {Event} event + */ + insertNewline: function(event) { + sendAction('enter', this, event); + sendAction('insert-newline', this, event); + }, + + /** + Called when the user hits escape. + + Called by the `Ember.TextSupport` mixin on keyUp if keycode matches 27. + Uses sendAction to send the `escape-press` action to the controller. + + @method cancel + @param {Event} event + */ + cancel: function(event) { + sendAction('escape-press', this, event); + }, + + /** + Called when the text area is focused. + + @method focusIn + @param {Event} event + */ + focusIn: function(event) { + sendAction('focus-in', this, event); + }, + + /** + Called when the text area is blurred. + + @method focusOut + @param {Event} event + */ + focusOut: function(event) { + sendAction('focus-out', this, event); + }, + + /** + The action to be sent when the user presses a key. Enabled by setting + the `onEvent` property to `keyPress`. + + Uses sendAction to send the `keyPress` action to the controller. + + @method keyPress + @param {Event} event + */ + keyPress: function(event) { + sendAction('key-press', this, event); + } + + }); + + TextSupport.KEY_EVENTS = { + 13: 'insertNewline', + 27: 'cancel' + }; + + // In principle, this shouldn't be necessary, but the legacy + // sectionAction semantics for TextField are different from + // the component semantics so this method normalizes them. + function sendAction(eventName, view, event) { + var action = get(view, eventName), + on = get(view, 'onEvent'), + value = get(view, 'value'); + + // back-compat support for keyPress as an event name even though + // it's also a method name that consumes the event (and therefore + // incompatible with sendAction semantics). + if (on === eventName || (on === 'keyPress' && eventName === 'key-press')) { + view.sendAction('action', value); + } + + view.sendAction(eventName, value); + + if (action || on === eventName) { + if(!get(view, 'bubbles')) { + event.stopPropagation(); + } + } + } + + __exports__["default"] = TextSupport; + }); +define("ember-handlebars/ext", + ["ember-metal/core","ember-runtime/system/string","ember-handlebars-compiler","ember-metal/property_get","ember-metal/binding","ember-metal/error","ember-metal/mixin","ember-metal/is_empty","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.FEATURES, Ember.assert, Ember.Handlebars, Ember.lookup + // var emberAssert = Ember.assert; + + var fmt = __dependency2__.fmt; + + var EmberHandlebars = __dependency3__["default"]; + var helpers = EmberHandlebars.helpers; + + var get = __dependency4__.get; + var isGlobalPath = __dependency5__.isGlobalPath; + var EmberError = __dependency6__["default"]; + var IS_BINDING = __dependency7__.IS_BINDING; + + // late bound via requireModule because of circular dependencies. + var resolveHelper, + SimpleHandlebarsView; + + var isEmpty = __dependency8__["default"]; + + var slice = [].slice, originalTemplate = EmberHandlebars.template; + + /** + If a path starts with a reserved keyword, returns the root + that should be used. + + @private + @method normalizePath + @for Ember + @param root {Object} + @param path {String} + @param data {Hash} + */ + function normalizePath(root, path, data) { + var keywords = (data && data.keywords) || {}, + keyword, isKeyword; + + // Get the first segment of the path. For example, if the + // path is "foo.bar.baz", returns "foo". + keyword = path.split('.', 1)[0]; + + // Test to see if the first path is a keyword that has been + // passed along in the view's data hash. If so, we will treat + // that object as the new root. + if (keywords.hasOwnProperty(keyword)) { + // Look up the value in the template's data hash. + root = keywords[keyword]; + isKeyword = true; + + // Handle cases where the entire path is the reserved + // word. In that case, return the object itself. + if (path === keyword) { + path = ''; + } else { + // Strip the keyword from the path and look up + // the remainder from the newly found root. + path = path.substr(keyword.length+1); + } + } + + return { root: root, path: path, isKeyword: isKeyword }; + }; + + + /** + Lookup both on root and on window. If the path starts with + a keyword, the corresponding object will be looked up in the + template's data hash and used to resolve the path. + + @method get + @for Ember.Handlebars + @param {Object} root The object to look up the property on + @param {String} path The path to be lookedup + @param {Object} options The template's option hash + */ + function handlebarsGet(root, path, options) { + var data = options && options.data, + normalizedPath = normalizePath(root, path, data), + value; + + if (Ember.FEATURES.isEnabled("ember-handlebars-caps-lookup")) { + + // If the path starts with a capital letter, look it up on Ember.lookup, + // which defaults to the `window` object in browsers. + if (isGlobalPath(path)) { + value = get(Ember.lookup, path); + } else { + + // In cases where the path begins with a keyword, change the + // root to the value represented by that keyword, and ensure + // the path is relative to it. + value = get(normalizedPath.root, normalizedPath.path); + } + + } else { + root = normalizedPath.root; + path = normalizedPath.path; + + value = get(root, path); + + if (value === undefined && root !== Ember.lookup && isGlobalPath(path)) { + value = get(Ember.lookup, path); + } + } + + return value; + } + + /** + This method uses `Ember.Handlebars.get` to lookup a value, then ensures + that the value is escaped properly. + + If `unescaped` is a truthy value then the escaping will not be performed. + + @method getEscaped + @for Ember.Handlebars + @param {Object} root The object to look up the property on + @param {String} path The path to be lookedup + @param {Object} options The template's option hash + */ + function getEscaped(root, path, options) { + var result = handlebarsGet(root, path, options); + + if (result === null || result === undefined) { + result = ""; + } else if (!(result instanceof Handlebars.SafeString)) { + result = String(result); + } + if (!options.hash.unescaped){ + result = Handlebars.Utils.escapeExpression(result); + } + + return result; + }; + + function resolveParams(context, params, options) { + var resolvedParams = [], types = options.types, param, type; + + for (var i=0, l=params.length; i{{user.name}} + +
    +
    {{user.role.label}}
    + {{user.role.id}} + +

    {{user.role.description}}

    +
    + ``` + + `{{with}}` can be our best friend in these cases, + instead of writing `user.role.*` over and over, we use `{{#with user.role}}`. + Now the context within the `{{#with}} .. {{/with}}` block is `user.role` so you can do the following: + + ```handlebars +
    {{user.name}}
    + +
    + {{#with user.role}} +
    {{label}}
    + {{id}} + +

    {{description}}

    + {{/with}} +
    + ``` + + ### `as` operator + + This operator aliases the scope to a new name. It's helpful for semantic clarity and to retain + default scope or to reference from another `{{with}}` block. + + ```handlebars + // posts might not be + {{#with user.posts as blogPosts}} +
    + There are {{blogPosts.length}} blog posts written by {{user.name}}. +
    + + {{#each post in blogPosts}} +
  • {{post.title}}
    • + {{/each}} + {{/with}} + ``` + + Without the `as` operator, it would be impossible to reference `user.name` in the example above. + + NOTE: The alias should not reuse a name from the bound property path. + For example: `{{#with foo.bar as foo}}` is not supported because it attempts to alias using + the first part of the property path, `foo`. Instead, use `{{#with foo.bar as baz}}`. + + ### `controller` option + + Adding `controller='something'` instructs the `{{with}}` helper to create and use an instance of + the specified controller with the new context as its content. + + This is very similar to using an `itemController` option with the `{{each}}` helper. + + ```handlebars + {{#with users.posts controller='userBlogPosts'}} + {{!- The current context is wrapped in our controller instance }} + {{/with}} + ``` + + In the above example, the template provided to the `{{with}}` block is now wrapped in the + `userBlogPost` controller, which provides a very elegant way to decorate the context with custom + functions/properties. + + @method with + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function withHelper(context, options) { + if (arguments.length === 4) { + var keywordName, path, rootPath, normalized, contextPath; + + options = arguments[3]; + keywordName = arguments[2]; + path = arguments[0]; + + + var localizedOptions = o_create(options); + localizedOptions.data = o_create(options.data); + localizedOptions.data.keywords = o_create(options.data.keywords || {}); + + if (isGlobalPath(path)) { + contextPath = path; + } else { + normalized = normalizePath(this, path, options.data); + path = normalized.path; + rootPath = normalized.root; + + // This is a workaround for the fact that you cannot bind separate objects + // together. When we implement that functionality, we should use it here. + var contextKey = jQuery.expando + guidFor(rootPath); + localizedOptions.data.keywords[contextKey] = rootPath; + // if the path is '' ("this"), just bind directly to the current context + contextPath = path ? contextKey + '.' + path : contextKey; + } + + emberBind(localizedOptions.data.keywords, keywordName, contextPath); + + return bind.call(this, path, localizedOptions, true, exists); + } else { + return helpers.bind.call(options.contexts[0], context, options); + } + } + + + /** + See [boundIf](/api/classes/Ember.Handlebars.helpers.html#method_boundIf) + and [unboundIf](/api/classes/Ember.Handlebars.helpers.html#method_unboundIf) + + @method if + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function ifHelper(context, options) { + if (options.data.isUnbound) { + return helpers.unboundIf.call(options.contexts[0], context, options); + } else { + return helpers.boundIf.call(options.contexts[0], context, options); + } + } + + /** + @method unless + @for Ember.Handlebars.helpers + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function unlessHelper(context, options) { + + var fn = options.fn, inverse = options.inverse; + + options.fn = inverse; + options.inverse = fn; + + if (options.data.isUnbound) { + return helpers.unboundIf.call(options.contexts[0], context, options); + } else { + return helpers.boundIf.call(options.contexts[0], context, options); + } + } + + /** + `bind-attr` allows you to create a binding between DOM element attributes and + Ember objects. For example: + + ```handlebars + imageTitle + ``` + + The above handlebars template will fill the ``'s `src` attribute will + the value of the property referenced with `"imageUrl"` and its `alt` + attribute with the value of the property referenced with `"imageTitle"`. + + If the rendering context of this template is the following object: + + ```javascript + { + imageUrl: 'http://lolcats.info/haz-a-funny', + imageTitle: 'A humorous image of a cat' + } + ``` + + The resulting HTML output will be: + + ```html + A humorous image of a cat + ``` + + `bind-attr` cannot redeclare existing DOM element attributes. The use of `src` + in the following `bind-attr` example will be ignored and the hard coded value + of `src="/failwhale.gif"` will take precedence: + + ```handlebars + imageTitle + ``` + + ### `bind-attr` and the `class` attribute + + `bind-attr` supports a special syntax for handling a number of cases unique + to the `class` DOM element attribute. The `class` attribute combines + multiple discrete values into a single attribute as a space-delimited + list of strings. Each string can be: + + * a string return value of an object's property. + * a boolean return value of an object's property + * a hard-coded value + + A string return value works identically to other uses of `bind-attr`. The + return value of the property will become the value of the attribute. For + example, the following view and template: + + ```javascript + AView = View.extend({ + someProperty: function() { + return "aValue"; + }.property() + }) + ``` + + ```handlebars + + ``` + + A boolean return value will insert a specified class name if the property + returns `true` and remove the class name if the property returns `false`. + + A class name is provided via the syntax + `somePropertyName:class-name-if-true`. + + ```javascript + AView = View.extend({ + someBool: true + }) + ``` + + ```handlebars + + ``` + + Result in the following rendered output: + + ```html + + ``` + + An additional section of the binding can be provided if you want to + replace the existing class instead of removing it when the boolean + value changes: + + ```handlebars + + ``` + + A hard-coded value can be used by prepending `:` to the desired + class name: `:class-name-to-always-apply`. + + ```handlebars + + ``` + + Results in the following rendered output: + + ```html + + ``` + + All three strategies - string return value, boolean return value, and + hard-coded value – can be combined in a single declaration: + + ```handlebars + + ``` + + @method bind-attr + @for Ember.Handlebars.helpers + @param {Hash} options + @return {String} HTML string + */ + function bindAttrHelper(options) { + var attrs = options.hash; + + + var view = options.data.view; + var ret = []; + + // we relied on the behavior of calling without + // context to mean this === window, but when running + // "use strict", it's possible for this to === undefined; + var ctx = this || window; + + // Generate a unique id for this element. This will be added as a + // data attribute to the element so it can be looked up when + // the bound property changes. + var dataId = ++Ember.uuid; + + // Handle classes differently, as we can bind multiple classes + var classBindings = attrs['class']; + if (classBindings != null) { + var classResults = bindClasses(ctx, classBindings, view, dataId, options); + + ret.push('class="' + Handlebars.Utils.escapeExpression(classResults.join(' ')) + '"'); + delete attrs['class']; + } + + var attrKeys = keys(attrs); + + // For each attribute passed, create an observer and emit the + // current value of the property as an attribute. + forEach.call(attrKeys, function(attr) { + var path = attrs[attr], + normalized; + + + normalized = normalizePath(ctx, path, options.data); + + var value = (path === 'this') ? normalized.root : handlebarsGet(ctx, path, options), + type = typeOf(value); + + + var observer, invoker; + + observer = function observer() { + var result = handlebarsGet(ctx, path, options); + + + var elem = view.$("[data-bindattr-" + dataId + "='" + dataId + "']"); + + // If we aren't able to find the element, it means the element + // to which we were bound has been removed from the view. + // In that case, we can assume the template has been re-rendered + // and we need to clean up the observer. + if (!elem || elem.length === 0) { + removeObserver(normalized.root, normalized.path, invoker); + return; + } + + View.applyAttributeBindings(elem, attr, result); + }; + + // Add an observer to the view for when the property changes. + // When the observer fires, find the element using the + // unique data id and update the attribute to the new value. + // Note: don't add observer when path is 'this' or path + // is whole keyword e.g. {{#each x in list}} ... {{bind-attr attr="x"}} + if (path !== 'this' && !(normalized.isKeyword && normalized.path === '' )) { + view.registerObserver(normalized.root, normalized.path, observer); + } + + // if this changes, also change the logic in ember-views/lib/views/view.js + if ((type === 'string' || (type === 'number' && !isNaN(value)))) { + ret.push(attr + '="' + Handlebars.Utils.escapeExpression(value) + '"'); + } else if (value && type === 'boolean') { + // The developer controls the attr name, so it should always be safe + ret.push(attr + '="' + attr + '"'); + } + }, this); + + // Add the unique identifier + // NOTE: We use all lower-case since Firefox has problems with mixed case in SVG + ret.push('data-bindattr-' + dataId + '="' + dataId + '"'); + return new SafeString(ret.join(' ')); + } + + /** + See `bind-attr` + + @method bindAttr + @for Ember.Handlebars.helpers + @deprecated + @param {Function} context + @param {Hash} options + @return {String} HTML string + */ + function bindAttrHelperDeprecated() { + return helpers['bind-attr'].apply(this, arguments); + } + + /** + Helper that, given a space-separated string of property paths and a context, + returns an array of class names. Calling this method also has the side + effect of setting up observers at those property paths, such that if they + change, the correct class name will be reapplied to the DOM element. + + For example, if you pass the string "fooBar", it will first look up the + "fooBar" value of the context. If that value is true, it will add the + "foo-bar" class to the current element (i.e., the dasherized form of + "fooBar"). If the value is a string, it will add that string as the class. + Otherwise, it will not add any new class name. + + @private + @method bindClasses + @for Ember.Handlebars + @param {Ember.Object} context The context from which to lookup properties + @param {String} classBindings A string, space-separated, of class bindings + to use + @param {View} view The view in which observers should look for the + element to update + @param {Srting} bindAttrId Optional bindAttr id used to lookup elements + @return {Array} An array of class names to add + */ + function bindClasses(context, classBindings, view, bindAttrId, options) { + var ret = [], newClass, value, elem; + + // Helper method to retrieve the property from the context and + // determine which class string to return, based on whether it is + // a Boolean or not. + var classStringForPath = function(root, parsedPath, options) { + var val, + path = parsedPath.path; + + if (path === 'this') { + val = root; + } else if (path === '') { + val = true; + } else { + val = handlebarsGet(root, path, options); + } + + return View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName); + }; + + // For each property passed, loop through and setup + // an observer. + forEach.call(classBindings.split(' '), function(binding) { + + // Variable in which the old class value is saved. The observer function + // closes over this variable, so it knows which string to remove when + // the property changes. + var oldClass; + + var observer, invoker; + + var parsedPath = View._parsePropertyPath(binding), + path = parsedPath.path, + pathRoot = context, + normalized; + + if (path !== '' && path !== 'this') { + normalized = normalizePath(context, path, options.data); + + pathRoot = normalized.root; + path = normalized.path; + } + + // Set up an observer on the context. If the property changes, toggle the + // class name. + observer = function() { + // Get the current value of the property + newClass = classStringForPath(context, parsedPath, options); + elem = bindAttrId ? view.$("[data-bindattr-" + bindAttrId + "='" + bindAttrId + "']") : view.$(); + + // If we can't find the element anymore, a parent template has been + // re-rendered and we've been nuked. Remove the observer. + if (!elem || elem.length === 0) { + removeObserver(pathRoot, path, invoker); + } else { + // If we had previously added a class to the element, remove it. + if (oldClass) { + elem.removeClass(oldClass); + } + + // If necessary, add a new class. Make sure we keep track of it so + // it can be removed in the future. + if (newClass) { + elem.addClass(newClass); + oldClass = newClass; + } else { + oldClass = null; + } + } + }; + + if (path !== '' && path !== 'this') { + view.registerObserver(pathRoot, path, observer); + } + + // We've already setup the observer; now we just need to figure out the + // correct behavior right now on the first pass through. + value = classStringForPath(context, parsedPath, options); + + if (value) { + ret.push(value); + + // Make sure we save the current value so that it can be removed if the + // observer fires. + oldClass = value; + } + }); + + return ret; + }; + + __exports__.bind = bind; + __exports__._triageMustacheHelper = _triageMustacheHelper; + __exports__.resolveHelper = resolveHelper; + __exports__.bindHelper = bindHelper; + __exports__.boundIfHelper = boundIfHelper; + __exports__.unboundIfHelper = unboundIfHelper; + __exports__.withHelper = withHelper; + __exports__.ifHelper = ifHelper; + __exports__.unlessHelper = unlessHelper; + __exports__.bindAttrHelper = bindAttrHelper; + __exports__.bindAttrHelperDeprecated = bindAttrHelperDeprecated; + __exports__.bindClasses = bindClasses; + }); +define("ember-handlebars/helpers/collection", + ["ember-metal/core","ember-metal/utils","ember-handlebars-compiler","ember-runtime/system/string","ember-metal/property_get","ember-handlebars/ext","ember-handlebars/helpers/view","ember-metal/computed","ember-views/views/collection_view","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) { + "use strict"; + /** + @module ember + @submodule ember-handlebars + */ + + var Ember = __dependency1__["default"]; + // Ember.assert, Ember.deprecate + var inspect = __dependency2__.inspect; + + // var emberAssert = Ember.assert; + // emberDeprecate = Ember.deprecate; + + var EmberHandlebars = __dependency3__["default"]; + var helpers = EmberHandlebars.helpers; + + var fmt = __dependency4__.fmt; + var get = __dependency5__.get; + var handlebarsGet = __dependency6__.handlebarsGet; + var ViewHelper = __dependency7__.ViewHelper; + var computed = __dependency8__.computed; + var CollectionView = __dependency9__["default"]; + + var alias = computed.alias; + /** + `{{collection}}` is a `Ember.Handlebars` helper for adding instances of + `Ember.CollectionView` to a template. See [Ember.CollectionView](/api/classes/Ember.CollectionView.html) + for additional information on how a `CollectionView` functions. + + `{{collection}}`'s primary use is as a block helper with a `contentBinding` + option pointing towards an `Ember.Array`-compatible object. An `Ember.View` + instance will be created for each item in its `content` property. Each view + will have its own `content` property set to the appropriate item in the + collection. + + The provided block will be applied as the template for each item's view. + + Given an empty `` the following template: + + ```handlebars + {{#collection contentBinding="App.items"}} + Hi {{view.content.name}} + {{/collection}} + ``` + + And the following application code + + ```javascript + App = Ember.Application.create() + App.items = [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ] + ``` + + Will result in the HTML structure below + + ```html +
    +
    Hi Dave
    +
    Hi Mary
    +
    Hi Sara
    +
    + ``` + + ### Blockless use in a collection + + If you provide an `itemViewClass` option that has its own `template` you can + omit the block. + + The following template: + + ```handlebars + {{collection contentBinding="App.items" itemViewClass="App.AnItemView"}} + ``` + + And application code + + ```javascript + App = Ember.Application.create(); + App.items = [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ]; + + App.AnItemView = Ember.View.extend({ + template: Ember.Handlebars.compile("Greetings {{view.content.name}}") + }); + ``` + + Will result in the HTML structure below + + ```html +
    +
    Greetings Dave
    +
    Greetings Mary
    +
    Greetings Sara
    +
    + ``` + + ### Specifying a CollectionView subclass + + By default the `{{collection}}` helper will create an instance of + `Ember.CollectionView`. You can supply a `Ember.CollectionView` subclass to + the helper by passing it as the first argument: + + ```handlebars + {{#collection App.MyCustomCollectionClass contentBinding="App.items"}} + Hi {{view.content.name}} + {{/collection}} + ``` + + ### Forwarded `item.*`-named Options + + As with the `{{view}}`, helper options passed to the `{{collection}}` will be + set on the resulting `Ember.CollectionView` as properties. Additionally, + options prefixed with `item` will be applied to the views rendered for each + item (note the camelcasing): + + ```handlebars + {{#collection contentBinding="App.items" + itemTagName="p" + itemClassNames="greeting"}} + Howdy {{view.content.name}} + {{/collection}} + ``` + + Will result in the following HTML structure: + + ```html +
    +

    Howdy Dave

    +

    Howdy Mary

    +

    Howdy Sara

    +
    + ``` + + @method collection + @for Ember.Handlebars.helpers + @param {String} path + @param {Hash} options + @return {String} HTML string + @deprecated Use `{{each}}` helper instead. + */ + function collectionHelper(path, options) { + + // If no path is provided, treat path param as options. + if (path && path.data && path.data.isRenderData) { + options = path; + path = undefined; + } else { + } + + var fn = options.fn; + var data = options.data; + var inverse = options.inverse; + var view = options.data.view; + + + var controller, container; + // If passed a path string, convert that into an object. + // Otherwise, just default to the standard class. + var collectionClass; + if (path) { + controller = data.keywords.controller; + container = controller && controller.container; + collectionClass = handlebarsGet(this, path, options) || container.lookupFactory('view:' + path); + } + else { + collectionClass = CollectionView; + } + + var hash = options.hash, itemHash = {}, match; + + // Extract item view class if provided else default to the standard class + var collectionPrototype = collectionClass.proto(), itemViewClass; + + if (hash.itemView) { + controller = data.keywords.controller; + container = controller.container; + itemViewClass = container.lookupFactory('view:' + hash.itemView); + } else if (hash.itemViewClass) { + itemViewClass = handlebarsGet(collectionPrototype, hash.itemViewClass, options); + } else { + itemViewClass = collectionPrototype.itemViewClass; + } + + + delete hash.itemViewClass; + delete hash.itemView; + + // Go through options passed to the {{collection}} helper and extract options + // that configure item views instead of the collection itself. + for (var prop in hash) { + if (hash.hasOwnProperty(prop)) { + match = prop.match(/^item(.)(.*)$/); + + if (match && prop !== 'itemController') { + // Convert itemShouldFoo -> shouldFoo + itemHash[match[1].toLowerCase() + match[2]] = hash[prop]; + // Delete from hash as this will end up getting passed to the + // {{view}} helper method. + delete hash[prop]; + } + } + } + + if (fn) { + itemHash.template = fn; + delete options.fn; + } + + var emptyViewClass; + if (inverse && inverse !== EmberHandlebars.VM.noop) { + emptyViewClass = get(collectionPrototype, 'emptyViewClass'); + emptyViewClass = emptyViewClass.extend({ + template: inverse, + tagName: itemHash.tagName + }); + } else if (hash.emptyViewClass) { + emptyViewClass = handlebarsGet(this, hash.emptyViewClass, options); + } + if (emptyViewClass) { hash.emptyView = emptyViewClass; } + + if (!hash.keyword) { + itemHash._context = alias('content'); + } + + var viewOptions = ViewHelper.propertiesFromHTMLOptions({ data: data, hash: itemHash }, this); + hash.itemViewClass = itemViewClass.extend(viewOptions); + + return helpers.view.call(this, collectionClass, options); + } + + __exports__["default"] = collectionHelper; + }); +define("ember-handlebars/helpers/debug", + ["ember-metal/core","ember-metal/utils","ember-metal/logger","ember-metal/property_get","ember-handlebars/ext","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __exports__) { + "use strict"; + /*jshint debug:true*/ + + /** + @module ember + @submodule ember-handlebars + */ + var Ember = __dependency1__["default"]; + // Ember.FEATURES, + var inspect = __dependency2__.inspect; + var Logger = __dependency3__["default"]; + + var get = __dependency4__.get; + var normalizePath = __dependency5__.normalizePath; + var handlebarsGet = __dependency5__.handlebarsGet; + + var a_slice = [].slice; + + /** + `log` allows you to output the value of variables in the current rendering + context. `log` also accepts primitive types such as strings or numbers. + + ```handlebars + {{log "myVariable:" myVariable }} + ``` + + @method log + @for Ember.Handlebars.helpers + @param {String} property + */ + function logHelper() { + var params = a_slice.call(arguments, 0, -1), + options = arguments[arguments.length - 1], + logger = Logger.log, + values = [], + allowPrimitives = true; + + for (var i = 0; i < params.length; i++) { + var type = options.types[i]; + + if (type === 'ID' || !allowPrimitives) { + var context = (options.contexts && options.contexts[i]) || this, + normalized = normalizePath(context, params[i], options.data); + + if (normalized.path === 'this') { + values.push(normalized.root); + } else { + values.push(handlebarsGet(normalized.root, normalized.path, options)); + } + } else { + values.push(params[i]); + } + } + + logger.apply(logger, values); + }; + + /** + Execute the `debugger` statement in the current context. + + ```handlebars + {{debugger}} + ``` + + Before invoking the `debugger` statement, there + are a few helpful variables defined in the + body of this helper that you can inspect while + debugging that describe how and where this + helper was invoked: + + - templateContext: this is most likely a controller + from which this template looks up / displays properties + - typeOfTemplateContext: a string description of + what the templateContext is + + For example, if you're wondering why a value `{{foo}}` + isn't rendering as expected within a template, you + could place a `{{debugger}}` statement, and when + the `debugger;` breakpoint is hit, you can inspect + `templateContext`, determine if it's the object you + expect, and/or evaluate expressions in the console + to perform property lookups on the `templateContext`: + + ``` + > templateContext.get('foo') // -> "" + ``` + + @method debugger + @for Ember.Handlebars.helpers + @param {String} property + */ + function debuggerHelper(options) { + + // These are helpful values you can inspect while debugging. + var templateContext = this; + var typeOfTemplateContext = inspect(templateContext); + + debugger; + } + + __exports__.logHelper = logHelper; + __exports__.debuggerHelper = debuggerHelper; + }); +define("ember-handlebars/helpers/each", + ["ember-metal/core","ember-handlebars-compiler","ember-runtime/system/string","ember-metal/property_get","ember-metal/property_set","ember-handlebars/views/metamorph_view","ember-views/views/collection_view","ember-metal/binding","ember-runtime/controllers/controller","ember-runtime/controllers/array_controller","ember-runtime/mixins/array","ember-runtime/copy","ember-metal/run_loop","ember-metal/observer","ember-metal/events","ember-handlebars/ext","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __dependency16__, __exports__) { + "use strict"; + + /** + @module ember + @submodule ember-handlebars + */ + var Ember = __dependency1__["default"]; + // Ember.assert;, Ember.K + // var emberAssert = Ember.assert, + var K = Ember.K; + + var EmberHandlebars = __dependency2__["default"]; + var helpers = EmberHandlebars.helpers; + + var fmt = __dependency3__.fmt; + var get = __dependency4__.get; + var set = __dependency5__.set; + var _Metamorph = __dependency6__._Metamorph; + var _MetamorphView = __dependency6__._MetamorphView; + var CollectionView = __dependency7__["default"]; + var Binding = __dependency8__.Binding; + var ControllerMixin = __dependency9__.ControllerMixin; + var ArrayController = __dependency10__["default"]; + var EmberArray = __dependency11__["default"]; + var copy = __dependency12__["default"]; + var run = __dependency13__["default"]; + var addObserver = __dependency14__.addObserver; + var removeObserver = __dependency14__.removeObserver; + var addBeforeObserver = __dependency14__.addBeforeObserver; + var removeBeforeObserver = __dependency14__.removeBeforeObserver; + var on = __dependency15__.on; + + var handlebarsGet = __dependency16__.handlebarsGet; + + var EachView = CollectionView.extend(_Metamorph, { + init: function() { + var itemController = get(this, 'itemController'); + var binding; + + if (itemController) { + var controller = get(this, 'controller.container').lookupFactory('controller:array').create({ + _isVirtual: true, + parentController: get(this, 'controller'), + itemController: itemController, + target: get(this, 'controller'), + _eachView: this + }); + + this.disableContentObservers(function() { + set(this, 'content', controller); + binding = new Binding('content', '_eachView.dataSource').oneWay(); + binding.connect(controller); + }); + + set(this, '_arrayController', controller); + } else { + this.disableContentObservers(function() { + binding = new Binding('content', 'dataSource').oneWay(); + binding.connect(this); + }); + } + + return this._super(); + }, + + _assertArrayLike: function(content) { + }, + + disableContentObservers: function(callback) { + removeBeforeObserver(this, 'content', null, '_contentWillChange'); + removeObserver(this, 'content', null, '_contentDidChange'); + + callback.call(this); + + addBeforeObserver(this, 'content', null, '_contentWillChange'); + addObserver(this, 'content', null, '_contentDidChange'); + }, + + itemViewClass: _MetamorphView, + emptyViewClass: _MetamorphView, + + createChildView: function(view, attrs) { + view = this._super(view, attrs); + + // At the moment, if a container view subclass wants + // to insert keywords, it is responsible for cloning + // the keywords hash. This will be fixed momentarily. + var keyword = get(this, 'keyword'); + var content = get(view, 'content'); + + if (keyword) { + var data = get(view, 'templateData'); + + data = copy(data); + data.keywords = view.cloneKeywords(); + set(view, 'templateData', data); + + // In this case, we do not bind, because the `content` of + // a #each item cannot change. + data.keywords[keyword] = content; + } + + // If {{#each}} is looping over an array of controllers, + // point each child view at their respective controller. + if (content && content.isController) { + set(view, 'controller', content); + } + + return view; + }, + + destroy: function() { + if (!this._super()) { return; } + + var arrayController = get(this, '_arrayController'); + + if (arrayController) { + arrayController.destroy(); + } + + return this; + } + }); + + // Defeatureify doesn't seem to like nested functions that need to be removed + function _addMetamorphCheck() { + EachView.reopen({ + _checkMetamorph: on('didInsertElement', function() { + }) + }); + } + + // until ember-debug is es6ed + var runInDebug = function(f){f()}; + + var GroupedEach = EmberHandlebars.GroupedEach = function(context, path, options) { + var self = this, + normalized = EmberHandlebars.normalizePath(context, path, options.data); + + this.context = context; + this.path = path; + this.options = options; + this.template = options.fn; + this.containingView = options.data.view; + this.normalizedRoot = normalized.root; + this.normalizedPath = normalized.path; + this.content = this.lookupContent(); + + this.addContentObservers(); + this.addArrayObservers(); + + this.containingView.on('willClearRender', function() { + self.destroy(); + }); + }; + + GroupedEach.prototype = { + contentWillChange: function() { + this.removeArrayObservers(); + }, + + contentDidChange: function() { + this.content = this.lookupContent(); + this.addArrayObservers(); + this.rerenderContainingView(); + }, + + contentArrayWillChange: K, + + contentArrayDidChange: function() { + this.rerenderContainingView(); + }, + + lookupContent: function() { + return handlebarsGet(this.normalizedRoot, this.normalizedPath, this.options); + }, + + addArrayObservers: function() { + if (!this.content) { return; } + + this.content.addArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + }, + + removeArrayObservers: function() { + if (!this.content) { return; } + + this.content.removeArrayObserver(this, { + willChange: 'contentArrayWillChange', + didChange: 'contentArrayDidChange' + }); + }, + + addContentObservers: function() { + addBeforeObserver(this.normalizedRoot, this.normalizedPath, this, this.contentWillChange); + addObserver(this.normalizedRoot, this.normalizedPath, this, this.contentDidChange); + }, + + removeContentObservers: function() { + removeBeforeObserver(this.normalizedRoot, this.normalizedPath, this.contentWillChange); + removeObserver(this.normalizedRoot, this.normalizedPath, this.contentDidChange); + }, + + render: function() { + if (!this.content) { return; } + + var content = this.content, + contentLength = get(content, 'length'), + data = this.options.data, + template = this.template; + + data.insideEach = true; + for (var i = 0; i < contentLength; i++) { + template(content.objectAt(i), { data: data }); + } + }, + + rerenderContainingView: function() { + var self = this; + run.scheduleOnce('render', this, function() { + // It's possible it's been destroyed after we enqueued a re-render call. + if (!self.destroyed) { + self.containingView.rerender(); + } + }); + }, + + destroy: function() { + this.removeContentObservers(); + if (this.content) { + this.removeArrayObservers(); + } + this.destroyed = true; + } + }; + + /** + The `{{#each}}` helper loops over elements in a collection, rendering its + block once for each item. It is an extension of the base Handlebars `{{#each}}` + helper: + + ```javascript + Developers = [{name: 'Yehuda'},{name: 'Tom'}, {name: 'Paul'}]; + ``` + + ```handlebars + {{#each Developers}} + {{name}} + {{/each}} + ``` + + `{{each}}` supports an alternative syntax with element naming: + + ```handlebars + {{#each person in Developers}} + {{person.name}} + {{/each}} + ``` + + When looping over objects that do not have properties, `{{this}}` can be used + to render the object: + + ```javascript + DeveloperNames = ['Yehuda', 'Tom', 'Paul'] + ``` + + ```handlebars + {{#each DeveloperNames}} + {{this}} + {{/each}} + ``` + ### {{else}} condition + `{{#each}}` can have a matching `{{else}}`. The contents of this block will render + if the collection is empty. + + ``` + {{#each person in Developers}} + {{person.name}} + {{else}} +

    Sorry, nobody is available for this task.

    + {{/each}} + ``` + ### Specifying a View class for items + If you provide an `itemViewClass` option that references a view class + with its own `template` you can omit the block. + + The following template: + + ```handlebars + {{#view App.MyView }} + {{each view.items itemViewClass="App.AnItemView"}} + {{/view}} + ``` + + And application code + + ```javascript + App = Ember.Application.create({ + MyView: Ember.View.extend({ + items: [ + Ember.Object.create({name: 'Dave'}), + Ember.Object.create({name: 'Mary'}), + Ember.Object.create({name: 'Sara'}) + ] + }) + }); + + App.AnItemView = Ember.View.extend({ + template: Ember.Handlebars.compile("Greetings {{name}}") + }); + ``` + + Will result in the HTML structure below + + ```html +
    +
    Greetings Dave
    +
    Greetings Mary
    +
    Greetings Sara
    +
    + ``` + + If an `itemViewClass` is defined on the helper, and therefore the helper is not + being used as a block, an `emptyViewClass` can also be provided optionally. + The `emptyViewClass` will match the behavior of the `{{else}}` condition + described above. That is, the `emptyViewClass` will render if the collection + is empty. + + ### Representing each item with a Controller. + By default the controller lookup within an `{{#each}}` block will be + the controller of the template where the `{{#each}}` was used. If each + item needs to be presented by a custom controller you can provide a + `itemController` option which references a controller by lookup name. + Each item in the loop will be wrapped in an instance of this controller + and the item itself will be set to the `content` property of that controller. + + This is useful in cases where properties of model objects need transformation + or synthesis for display: + + ```javascript + App.DeveloperController = Ember.ObjectController.extend({ + isAvailableForHire: function() { + return !this.get('content.isEmployed') && this.get('content.isSeekingWork'); + }.property('isEmployed', 'isSeekingWork') + }) + ``` + + ```handlebars + {{#each person in developers itemController="developer"}} + {{person.name}} {{#if person.isAvailableForHire}}Hire me!{{/if}} + {{/each}} + ``` + + Each itemController will receive a reference to the current controller as + a `parentController` property. + + ### (Experimental) Grouped Each + + When used in conjunction with the experimental [group helper](https://github.com/emberjs/group-helper), + you can inform Handlebars to re-render an entire group of items instead of + re-rendering them one at a time (in the event that they are changed en masse + or an item is added/removed). + + ```handlebars + {{#group}} + {{#each people}} + {{firstName}} {{lastName}} + {{/each}} + {{/group}} + ``` + + This can be faster than the normal way that Handlebars re-renders items + in some cases. + + If for some reason you have a group with more than one `#each`, you can make + one of the collections be updated in normal (non-grouped) fashion by setting + the option `groupedRows=true` (counter-intuitive, I know). + + For example, + + ```handlebars + {{dealershipName}} + + {{#group}} + {{#each dealers}} + {{firstName}} {{lastName}} + {{/each}} + + {{#each car in cars groupedRows=true}} + {{car.make}} {{car.model}} {{car.color}} + {{/each}} + {{/group}} + ``` + Any change to `dealershipName` or the `dealers` collection will cause the + entire group to be re-rendered. However, changes to the `cars` collection + will be re-rendered individually (as normal). + + Note that `group` behavior is also disabled by specifying an `itemViewClass`. + + @method each + @for Ember.Handlebars.helpers + @param [name] {String} name for item (used with `in`) + @param [path] {String} path + @param [options] {Object} Handlebars key/value pairs of options + @param [options.itemViewClass] {String} a path to a view class used for each item + @param [options.itemController] {String} name of a controller to be created for each item + @param [options.groupedRows] {boolean} enable normal item-by-item rendering when inside a `#group` helper + */ + function eachHelper(path, options) { + var ctx; + + if (arguments.length === 4) { + + var keywordName = arguments[0]; + + options = arguments[3]; + path = arguments[2]; + if (path === '') { path = "this"; } + + options.hash.keyword = keywordName; + } + + if (arguments.length === 1) { + options = path; + path = 'this'; + } + + options.hash.dataSourceBinding = path; + // Set up emptyView as a metamorph with no tag + //options.hash.emptyViewClass = Ember._MetamorphView; + + // can't rely on this default behavior when use strict + ctx = this || window; + if (options.data.insideGroup && !options.hash.groupedRows && !options.hash.itemViewClass) { + new GroupedEach(ctx, path, options).render(); + } else { + // ES6TODO: figure out how to do this without global lookup. + return helpers.collection.call(ctx, 'Ember.Handlebars.EachView', options); + } + } + + __exports__.EachView = EachView; + __exports__.GroupedEach = GroupedEach; + __exports__.eachHelper = eachHelper; + }); +define("ember-handlebars/helpers/loc", + ["ember-runtime/system/string","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var loc = __dependency1__.loc; + + /** + @module ember + @submodule ember-handlebars + */ + + // ES6TODO: + // Pretty sure this can be expressed as + // var locHelper EmberStringUtils.loc ? + + /** + `loc` looks up the string in the localized strings hash. + This is a convenient way to localize text. For example: + + ```html + + ``` + + Take note that `"welcome"` is a string and not an object + reference. + + @method loc + @for Ember.Handlebars.helpers + @param {String} str The string to format + */ + function locHelper(str) { + return loc(str); + } + + __exports__["default"] = locHelper; + }); +define("ember-handlebars/helpers/partial", + ["ember-metal/core","ember-metal/is_none","ember-handlebars/ext","ember-handlebars/helpers/binding","exports"], + function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __exports__) { + "use strict"; + var Ember = __dependency1__["default"]; + // Ember.assert + // var emberAssert = Ember.assert; + + var isNone = __dependency2__.isNone; + var handlebarsGet = __dependency3__.handlebarsGet; + var bind = __dependency4__.bind; + + /** + @module ember + @submodule ember-handlebars + */ + + /** + The `partial` helper renders another template without + changing the template context: + + ```handlebars + {{foo}} + {{partial "nav"}} + ``` + + The above example template will render a template named + "_nav", which has the same context as the parent template + it's rendered into, so if the "_nav" template also referenced + `{{foo}}`, it would print the same thing as the `{{foo}}` + in the above example. + + If a "_nav" template isn't found, the `partial` helper will + fall back to a template named "nav". + + ## Bound template names + + The parameter supplied to `partial` can also be a path + to a property containing a template name, e.g.: + + ```handlebars + {{partial someTemplateName}} + ``` + + The above example will look up the value of `someTemplateName` + on the template context (e.g. a controller) and use that + value as the name of the template to render. If the resolved + value is falsy, nothing will be rendered. If `someTemplateName` + changes, the partial will be re-rendered using the new template + name. + + ## Setting the partial's context with `with` + + The `partial` helper can be used in conjunction with the `with` + helper to set a context that will be used by the partial: + + ```handlebars + {{#with currentUser}} + {{partial "user_info"}} + {{/with}} + ``` + + @method partial + @for Ember.Handlebars.helpers + @param {String} partialName the name of the template to render minus the leading underscore + */ + + function partialHelper(name, options) { + + var context = (options.contexts && options.contexts.length) ? options.contexts[0] : this; + + if (options.types[0] === "ID") { + // Helper was passed a property path; we need to + // create a binding that will re-render whenever + // this property changes. + options.fn = function(context, fnOptions) { + var partialName = handlebarsGet(context, name, fnOptions); + renderPartial(context, partialName, fnOptions); + }; + + return bind.call(context, name, options, true, exists); + } else { + // Render the partial right into parent template. + renderPartial(context, name, options); + } + } + + function exists(value) { + return !isNone(value); + } + + function renderPartial(context, name, options) { + var nameParts = name.split("/"), + lastPart = nameParts[nameParts.length - 1]; + + nameParts[nameParts.length - 1] = "_" + lastPart; + + var view = options.data.view, + underscoredName = nameParts.join("/"), + template = view.templateForName(underscoredName), + deprecatedTemplate = !template && view.templateForName(name); + + + template = template || deprecatedTemplate; + + template(context, { data: options.data }); + } + + __exports__["default"] = partialHelper; + }); +define("ember-handlebars/helpers/shared", + ["ember-handlebars/ext","exports"], + function(__dependency1__, __exports__) { + "use strict"; + var handlebarsGet = __dependency1__.handlebarsGet; + + function resolvePaths(options) { + var ret = [], + contexts = options.contexts, + roots = options.roots, + data = options.data; + + for (var i=0, l=contexts.length; i + {{#with loggedInUser}} + Last Login: {{lastLogin}} + User Info: {{template "user_info"}} + {{/with}} + + ``` + + ```html + + ``` + + ```handlebars + {{#if isUser}} + {{template "user_info"}} + {{else}} + {{template "unlogged_user_info"}} + {{/if}} + ``` + + This helper looks for templates in the global `Ember.TEMPLATES` hash. If you + add `