diff --git a/ajax/libs/jquery.gridster/0.5.3/.bowerrc b/ajax/libs/jquery.gridster/0.5.3/.bowerrc
new file mode 100644
index 000000000..a33fd7abd
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/.bowerrc
@@ -0,0 +1,4 @@
+{
+ "directory": "libs",
+ "json": "package.json"
+}
\ No newline at end of file
diff --git a/ajax/libs/jquery.gridster/0.5.3/.gitignore b/ajax/libs/jquery.gridster/0.5.3/.gitignore
new file mode 100644
index 000000000..440a178da
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/.gitignore
@@ -0,0 +1,7 @@
+node_modules/
+libs/
+gh-pages/
+demo/
+.idea
+.DS_Store
+.idea
diff --git a/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.css b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.css
new file mode 100644
index 000000000..8f9c61072
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.css
@@ -0,0 +1,121 @@
+/*! gridster.js - v0.5.3 - 2014-07-04
+* http://gridster.net/
+* Copyright (c) 2014 ducksboard; Licensed MIT */
+
+.gridster {
+ position:relative;
+}
+
+.gridster > * {
+ margin: 0 auto;
+ -webkit-transition: height .4s, width .4s;
+ -moz-transition: height .4s, width .4s;
+ -o-transition: height .4s, width .4s;
+ -ms-transition: height .4s, width .4s;
+ transition: height .4s, width .4s;
+}
+
+.gridster .gs-w {
+ z-index: 2;
+ position: absolute;
+}
+
+.ready .gs-w:not(.preview-holder) {
+ -webkit-transition: opacity .3s, left .3s, top .3s;
+ -moz-transition: opacity .3s, left .3s, top .3s;
+ -o-transition: opacity .3s, left .3s, top .3s;
+ transition: opacity .3s, left .3s, top .3s;
+}
+
+.ready .gs-w:not(.preview-holder),
+.ready .resize-preview-holder {
+ -webkit-transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
+ -moz-transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
+ -o-transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
+ transition: opacity .3s, left .3s, top .3s, width .3s, height .3s;
+}
+
+.gridster .preview-holder {
+ z-index: 1;
+ position: absolute;
+ background-color: #fff;
+ border-color: #fff;
+ opacity: 0.3;
+}
+
+.gridster .player-revert {
+ z-index: 10!important;
+ -webkit-transition: left .3s, top .3s!important;
+ -moz-transition: left .3s, top .3s!important;
+ -o-transition: left .3s, top .3s!important;
+ transition: left .3s, top .3s!important;
+}
+
+.gridster .dragging,
+.gridster .resizing {
+ z-index: 10!important;
+ -webkit-transition: all 0s !important;
+ -moz-transition: all 0s !important;
+ -o-transition: all 0s !important;
+ transition: all 0s !important;
+}
+
+
+.gs-resize-handle {
+ position: absolute;
+ z-index: 1;
+}
+
+.gs-resize-handle-both {
+ width: 20px;
+ height: 20px;
+ bottom: -8px;
+ right: -8px;
+ background-image: url('data:image/svg+xml;base64,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');
+ background-position: top left;
+ background-repeat: no-repeat;
+ cursor: se-resize;
+ z-index: 20;
+}
+
+.gs-resize-handle-x {
+ top: 0;
+ bottom: 13px;
+ right: -5px;
+ width: 10px;
+ cursor: e-resize;
+}
+
+.gs-resize-handle-y {
+ left: 0;
+ right: 13px;
+ bottom: -5px;
+ height: 10px;
+ cursor: s-resize;
+}
+
+.gs-w:hover .gs-resize-handle,
+.resizing .gs-resize-handle {
+ opacity: 1;
+}
+
+.gs-resize-handle,
+.gs-w.dragging .gs-resize-handle {
+ opacity: 0;
+}
+
+.gs-resize-disabled .gs-resize-handle {
+ display: none!important;
+}
+
+[data-max-sizex="1"] .gs-resize-handle-x,
+[data-max-sizey="1"] .gs-resize-handle-y,
+[data-max-sizey="1"][data-max-sizex="1"] .gs-resize-handle {
+ display: none !important;
+}
+
+/* Uncomment this if you set helper : "clone" in draggable options */
+/*.gridster .player {
+ opacity:0;
+}
+*/
\ No newline at end of file
diff --git a/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.js b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.js
new file mode 100644
index 000000000..01d307a57
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.js
@@ -0,0 +1,3972 @@
+/*! gridster.js - v0.5.3 - 2014-07-04
+* http://gridster.net/
+* Copyright (c) 2014 ducksboard; Licensed MIT */
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define('gridster-coords', ['jquery'], factory);
+ } else {
+ root.GridsterCoords = factory(root.$ || root.jQuery);
+ }
+
+}(this, function($) {
+ /**
+ * Creates objects with coordinates (x1, y1, x2, y2, cx, cy, width, height)
+ * to simulate DOM elements on the screen.
+ * Coords is used by Gridster to create a faux grid with any DOM element can
+ * collide.
+ *
+ * @class Coords
+ * @param {HTMLElement|Object} obj The jQuery HTMLElement or a object with: left,
+ * top, width and height properties.
+ * @return {Object} Coords instance.
+ * @constructor
+ */
+ function Coords(obj) {
+ if (obj[0] && $.isPlainObject(obj[0])) {
+ this.data = obj[0];
+ }else {
+ this.el = obj;
+ }
+
+ this.isCoords = true;
+ this.coords = {};
+ this.init();
+ return this;
+ }
+
+
+ var fn = Coords.prototype;
+
+
+ fn.init = function(){
+ this.set();
+ this.original_coords = this.get();
+ };
+
+
+ fn.set = function(update, not_update_offsets) {
+ var el = this.el;
+
+ if (el && !update) {
+ this.data = el.offset();
+ this.data.width = el.width();
+ this.data.height = el.height();
+ }
+
+ if (el && update && !not_update_offsets) {
+ var offset = el.offset();
+ this.data.top = offset.top;
+ this.data.left = offset.left;
+ }
+
+ var d = this.data;
+
+ typeof d.left === 'undefined' && (d.left = d.x1);
+ typeof d.top === 'undefined' && (d.top = d.y1);
+
+ this.coords.x1 = d.left;
+ this.coords.y1 = d.top;
+ this.coords.x2 = d.left + d.width;
+ this.coords.y2 = d.top + d.height;
+ this.coords.cx = d.left + (d.width / 2);
+ this.coords.cy = d.top + (d.height / 2);
+ this.coords.width = d.width;
+ this.coords.height = d.height;
+ this.coords.el = el || false ;
+
+ return this;
+ };
+
+
+ fn.update = function(data){
+ if (!data && !this.el) {
+ return this;
+ }
+
+ if (data) {
+ var new_data = $.extend({}, this.data, data);
+ this.data = new_data;
+ return this.set(true, true);
+ }
+
+ this.set(true);
+ return this;
+ };
+
+
+ fn.get = function(){
+ return this.coords;
+ };
+
+ fn.destroy = function() {
+ this.el.removeData('coords');
+ delete this.el;
+ };
+
+ //jQuery adapter
+ $.fn.coords = function() {
+ if (this.data('coords') ) {
+ return this.data('coords');
+ }
+
+ var ins = new Coords(this, arguments[0]);
+ this.data('coords', ins);
+ return ins;
+ };
+
+ return Coords;
+
+}));
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define('gridster-collision', ['jquery', 'gridster-coords'], factory);
+ } else {
+ root.GridsterCollision = factory(root.$ || root.jQuery,
+ root.GridsterCoords);
+ }
+
+}(this, function($, Coords) {
+
+ var defaults = {
+ colliders_context: document.body,
+ overlapping_region: 'C'
+ // ,on_overlap: function(collider_data){},
+ // on_overlap_start : function(collider_data){},
+ // on_overlap_stop : function(collider_data){}
+ };
+
+
+ /**
+ * Detects collisions between a DOM element against other DOM elements or
+ * Coords objects.
+ *
+ * @class Collision
+ * @uses Coords
+ * @param {HTMLElement} el The jQuery wrapped HTMLElement.
+ * @param {HTMLElement|Array} colliders Can be a jQuery collection
+ * of HTMLElements or an Array of Coords instances.
+ * @param {Object} [options] An Object with all options you want to
+ * overwrite:
+ * @param {String} [options.overlapping_region] Determines when collision
+ * is valid, depending on the overlapped area. Values can be: 'N', 'S',
+ * 'W', 'E', 'C' or 'all'. Default is 'C'.
+ * @param {Function} [options.on_overlap_start] Executes a function the first
+ * time each `collider ` is overlapped.
+ * @param {Function} [options.on_overlap_stop] Executes a function when a
+ * `collider` is no longer collided.
+ * @param {Function} [options.on_overlap] Executes a function when the
+ * mouse is moved during the collision.
+ * @return {Object} Collision instance.
+ * @constructor
+ */
+ function Collision(el, colliders, options) {
+ this.options = $.extend(defaults, options);
+ this.$element = el;
+ this.last_colliders = [];
+ this.last_colliders_coords = [];
+ this.set_colliders(colliders);
+
+ this.init();
+ }
+
+ Collision.defaults = defaults;
+
+ var fn = Collision.prototype;
+
+
+ fn.init = function() {
+ this.find_collisions();
+ };
+
+
+ fn.overlaps = function(a, b) {
+ var x = false;
+ var y = false;
+
+ if ((b.x1 >= a.x1 && b.x1 <= a.x2) ||
+ (b.x2 >= a.x1 && b.x2 <= a.x2) ||
+ (a.x1 >= b.x1 && a.x2 <= b.x2)
+ ) { x = true; }
+
+ if ((b.y1 >= a.y1 && b.y1 <= a.y2) ||
+ (b.y2 >= a.y1 && b.y2 <= a.y2) ||
+ (a.y1 >= b.y1 && a.y2 <= b.y2)
+ ) { y = true; }
+
+ return (x && y);
+ };
+
+
+ fn.detect_overlapping_region = function(a, b){
+ var regionX = '';
+ var regionY = '';
+
+ if (a.y1 > b.cy && a.y1 < b.y2) { regionX = 'N'; }
+ if (a.y2 > b.y1 && a.y2 < b.cy) { regionX = 'S'; }
+ if (a.x1 > b.cx && a.x1 < b.x2) { regionY = 'W'; }
+ if (a.x2 > b.x1 && a.x2 < b.cx) { regionY = 'E'; }
+
+ return (regionX + regionY) || 'C';
+ };
+
+
+ fn.calculate_overlapped_area_coords = function(a, b){
+ var x1 = Math.max(a.x1, b.x1);
+ var y1 = Math.max(a.y1, b.y1);
+ var x2 = Math.min(a.x2, b.x2);
+ var y2 = Math.min(a.y2, b.y2);
+
+ return $({
+ left: x1,
+ top: y1,
+ width : (x2 - x1),
+ height: (y2 - y1)
+ }).coords().get();
+ };
+
+
+ fn.calculate_overlapped_area = function(coords){
+ return (coords.width * coords.height);
+ };
+
+
+ fn.manage_colliders_start_stop = function(new_colliders_coords, start_callback, stop_callback){
+ var last = this.last_colliders_coords;
+
+ for (var i = 0, il = last.length; i < il; i++) {
+ if ($.inArray(last[i], new_colliders_coords) === -1) {
+ start_callback.call(this, last[i]);
+ }
+ }
+
+ for (var j = 0, jl = new_colliders_coords.length; j < jl; j++) {
+ if ($.inArray(new_colliders_coords[j], last) === -1) {
+ stop_callback.call(this, new_colliders_coords[j]);
+ }
+
+ }
+ };
+
+
+ fn.find_collisions = function(player_data_coords){
+ var self = this;
+ var overlapping_region = this.options.overlapping_region;
+ var colliders_coords = [];
+ var colliders_data = [];
+ var $colliders = (this.colliders || this.$colliders);
+ var count = $colliders.length;
+ var player_coords = self.$element.coords()
+ .update(player_data_coords || false).get();
+
+ while(count--){
+ var $collider = self.$colliders ?
+ $($colliders[count]) : $colliders[count];
+ var $collider_coords_ins = ($collider.isCoords) ?
+ $collider : $collider.coords();
+ var collider_coords = $collider_coords_ins.get();
+ var overlaps = self.overlaps(player_coords, collider_coords);
+
+ if (!overlaps) {
+ continue;
+ }
+
+ var region = self.detect_overlapping_region(
+ player_coords, collider_coords);
+
+ //todo: make this an option
+ if (region === overlapping_region || overlapping_region === 'all') {
+
+ var area_coords = self.calculate_overlapped_area_coords(
+ player_coords, collider_coords);
+ var area = self.calculate_overlapped_area(area_coords);
+ var collider_data = {
+ area: area,
+ area_coords : area_coords,
+ region: region,
+ coords: collider_coords,
+ player_coords: player_coords,
+ el: $collider
+ };
+
+ if (self.options.on_overlap) {
+ self.options.on_overlap.call(this, collider_data);
+ }
+ colliders_coords.push($collider_coords_ins);
+ colliders_data.push(collider_data);
+ }
+ }
+
+ if (self.options.on_overlap_stop || self.options.on_overlap_start) {
+ this.manage_colliders_start_stop(colliders_coords,
+ self.options.on_overlap_start, self.options.on_overlap_stop);
+ }
+
+ this.last_colliders_coords = colliders_coords;
+
+ return colliders_data;
+ };
+
+
+ fn.get_closest_colliders = function(player_data_coords){
+ var colliders = this.find_collisions(player_data_coords);
+
+ colliders.sort(function(a, b) {
+ /* if colliders are being overlapped by the "C" (center) region,
+ * we have to set a lower index in the array to which they are placed
+ * above in the grid. */
+ if (a.region === 'C' && b.region === 'C') {
+ if (a.coords.y1 < b.coords.y1 || a.coords.x1 < b.coords.x1) {
+ return - 1;
+ }else{
+ return 1;
+ }
+ }
+
+ if (a.area < b.area) {
+ return 1;
+ }
+
+ return 1;
+ });
+ return colliders;
+ };
+
+
+ fn.set_colliders = function(colliders) {
+ if (typeof colliders === 'string' || colliders instanceof $) {
+ this.$colliders = $(colliders,
+ this.options.colliders_context).not(this.$element);
+ }else{
+ this.colliders = $(colliders);
+ }
+ };
+
+
+ //jQuery adapter
+ $.fn.collision = function(collider, options) {
+ return new Collision( this, collider, options );
+ };
+
+ return Collision;
+
+}));
+
+;(function(window, undefined) {
+
+ /* Delay, debounce and throttle functions taken from underscore.js
+ *
+ * Copyright (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and
+ * Investigative Reporters & Editors
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+ window.delay = function(func, wait) {
+ var args = Array.prototype.slice.call(arguments, 2);
+ return setTimeout(function(){ return func.apply(null, args); }, wait);
+ };
+
+ window.debounce = function(func, wait, immediate) {
+ var timeout;
+ return function() {
+ var context = this, args = arguments;
+ var later = function() {
+ timeout = null;
+ if (!immediate) func.apply(context, args);
+ };
+ if (immediate && !timeout) func.apply(context, args);
+ clearTimeout(timeout);
+ timeout = setTimeout(later, wait);
+ };
+ };
+
+ window.throttle = function(func, wait) {
+ var context, args, timeout, throttling, more, result;
+ var whenDone = debounce(
+ function(){ more = throttling = false; }, wait);
+ return function() {
+ context = this; args = arguments;
+ var later = function() {
+ timeout = null;
+ if (more) func.apply(context, args);
+ whenDone();
+ };
+ if (!timeout) timeout = setTimeout(later, wait);
+ if (throttling) {
+ more = true;
+ } else {
+ result = func.apply(context, args);
+ }
+ whenDone();
+ throttling = true;
+ return result;
+ };
+ };
+
+})(window);
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define('gridster-draggable', ['jquery'], factory);
+ } else {
+ root.GridsterDraggable = factory(root.$ || root.jQuery);
+ }
+
+}(this, function($) {
+
+ var defaults = {
+ items: 'li',
+ distance: 1,
+ limit: true,
+ offset_left: 0,
+ autoscroll: true,
+ ignore_dragging: ['INPUT', 'TEXTAREA', 'SELECT', 'BUTTON'], // or function
+ handle: null,
+ container_width: 0, // 0 == auto
+ move_element: true,
+ helper: false, // or 'clone'
+ remove_helper: true
+ // drag: function(e) {},
+ // start : function(e, ui) {},
+ // stop : function(e) {}
+ };
+
+ var $window = $(window);
+ var dir_map = { x : 'left', y : 'top' };
+ var isTouch = !!('ontouchstart' in window);
+ var pointer_events = {
+ start: 'touchstart.gridster-draggable mousedown.gridster-draggable',
+ move: 'touchmove.gridster-draggable mousemove.gridster-draggable',
+ end: 'touchend.gridster-draggable mouseup.gridster-draggable'
+ };
+
+ var capitalize = function(str) {
+ return str.charAt(0).toUpperCase() + str.slice(1);
+ };
+
+ /**
+ * Basic drag implementation for DOM elements inside a container.
+ * Provide start/stop/drag callbacks.
+ *
+ * @class Draggable
+ * @param {HTMLElement} el The HTMLelement that contains all the widgets
+ * to be dragged.
+ * @param {Object} [options] An Object with all options you want to
+ * overwrite:
+ * @param {HTMLElement|String} [options.items] Define who will
+ * be the draggable items. Can be a CSS Selector String or a
+ * collection of HTMLElements.
+ * @param {Number} [options.distance] Distance in pixels after mousedown
+ * the mouse must move before dragging should start.
+ * @param {Boolean} [options.limit] Constrains dragging to the width of
+ * the container
+ * @param {Object|Function} [options.ignore_dragging] Array of node names
+ * that sould not trigger dragging, by default is `['INPUT', 'TEXTAREA',
+ * 'SELECT', 'BUTTON']`. If a function is used return true to ignore dragging.
+ * @param {offset_left} [options.offset_left] Offset added to the item
+ * that is being dragged.
+ * @param {Number} [options.drag] Executes a callback when the mouse is
+ * moved during the dragging.
+ * @param {Number} [options.start] Executes a callback when the drag
+ * starts.
+ * @param {Number} [options.stop] Executes a callback when the drag stops.
+ * @return {Object} Returns `el`.
+ * @constructor
+ */
+ function Draggable(el, options) {
+ this.options = $.extend({}, defaults, options);
+ this.$document = $(document);
+ this.$container = $(el);
+ this.$dragitems = $(this.options.items, this.$container);
+ this.is_dragging = false;
+ this.player_min_left = 0 + this.options.offset_left;
+ this.init();
+ }
+
+ Draggable.defaults = defaults;
+
+ var fn = Draggable.prototype;
+
+ fn.init = function() {
+ var pos = this.$container.css('position');
+ this.calculate_dimensions();
+ this.$container.css('position', pos === 'static' ? 'relative' : pos);
+ this.disabled = false;
+ this.events();
+
+ $(window).bind('resize.gridster-draggable',
+ throttle($.proxy(this.calculate_dimensions, this), 200));
+ };
+
+ fn.events = function() {
+ this.$container.on('selectstart.gridster-draggable',
+ $.proxy(this.on_select_start, this));
+
+ this.$container.on(pointer_events.start, this.options.items,
+ $.proxy(this.drag_handler, this));
+
+ this.$document.on(pointer_events.end, $.proxy(function(e) {
+ this.is_dragging = false;
+ if (this.disabled) { return; }
+ this.$document.off(pointer_events.move);
+ if (this.drag_start) {
+ this.on_dragstop(e);
+ }
+ }, this));
+ };
+
+ fn.get_actual_pos = function($el) {
+ var pos = $el.position();
+ return pos;
+ };
+
+
+ fn.get_mouse_pos = function(e) {
+ if (e.originalEvent && e.originalEvent.touches) {
+ var oe = e.originalEvent;
+ e = oe.touches.length ? oe.touches[0] : oe.changedTouches[0];
+ }
+
+ return {
+ left: e.clientX,
+ top: e.clientY
+ };
+ };
+
+
+ fn.get_offset = function(e) {
+ e.preventDefault();
+ var mouse_actual_pos = this.get_mouse_pos(e);
+ var diff_x = Math.round(
+ mouse_actual_pos.left - this.mouse_init_pos.left);
+ var diff_y = Math.round(mouse_actual_pos.top - this.mouse_init_pos.top);
+
+ var left = Math.round(this.el_init_offset.left +
+ diff_x - this.baseX + $(window).scrollLeft() - this.win_offset_x);
+ var top = Math.round(this.el_init_offset.top +
+ diff_y - this.baseY + $(window).scrollTop() - this.win_offset_y);
+
+ if (this.options.limit) {
+ if (left > this.player_max_left) {
+ left = this.player_max_left;
+ } else if(left < this.player_min_left) {
+ left = this.player_min_left;
+ }
+ }
+
+ return {
+ position: {
+ left: left,
+ top: top
+ },
+ pointer: {
+ left: mouse_actual_pos.left,
+ top: mouse_actual_pos.top,
+ diff_left: diff_x + ($(window).scrollLeft() - this.win_offset_x),
+ diff_top: diff_y + ($(window).scrollTop() - this.win_offset_y)
+ }
+ };
+ };
+
+
+ fn.get_drag_data = function(e) {
+ var offset = this.get_offset(e);
+ offset.$player = this.$player;
+ offset.$helper = this.helper ? this.$helper : this.$player;
+
+ return offset;
+ };
+
+
+ fn.set_limits = function(container_width) {
+ container_width || (container_width = this.$container.width());
+ this.player_max_left = (container_width - this.player_width +
+ - this.options.offset_left);
+
+ this.options.container_width = container_width;
+
+ return this;
+ };
+
+
+ fn.scroll_in = function(axis, data) {
+ var dir_prop = dir_map[axis];
+
+ var area_size = 50;
+ var scroll_inc = 30;
+
+ var is_x = axis === 'x';
+ var window_size = is_x ? this.window_width : this.window_height;
+ var doc_size = is_x ? $(document).width() : $(document).height();
+ var player_size = is_x ? this.$player.width() : this.$player.height();
+
+ var next_scroll;
+ var scroll_offset = $window['scroll' + capitalize(dir_prop)]();
+ var min_window_pos = scroll_offset;
+ var max_window_pos = min_window_pos + window_size;
+
+ var mouse_next_zone = max_window_pos - area_size; // down/right
+ var mouse_prev_zone = min_window_pos + area_size; // up/left
+
+ var abs_mouse_pos = min_window_pos + data.pointer[dir_prop];
+
+ var max_player_pos = (doc_size - window_size + player_size);
+
+ if (abs_mouse_pos >= mouse_next_zone) {
+ next_scroll = scroll_offset + scroll_inc;
+ if (next_scroll < max_player_pos) {
+ $window['scroll' + capitalize(dir_prop)](next_scroll);
+ this['scroll_offset_' + axis] += scroll_inc;
+ }
+ }
+
+ if (abs_mouse_pos <= mouse_prev_zone) {
+ next_scroll = scroll_offset - scroll_inc;
+ if (next_scroll > 0) {
+ $window['scroll' + capitalize(dir_prop)](next_scroll);
+ this['scroll_offset_' + axis] -= scroll_inc;
+ }
+ }
+
+ return this;
+ };
+
+
+ fn.manage_scroll = function(data) {
+ this.scroll_in('x', data);
+ this.scroll_in('y', data);
+ };
+
+
+ fn.calculate_dimensions = function(e) {
+ this.window_height = $window.height();
+ this.window_width = $window.width();
+ };
+
+
+ fn.drag_handler = function(e) {
+ var node = e.target.nodeName;
+ // skip if drag is disabled, or click was not done with the mouse primary button
+ if (this.disabled || e.which !== 1 && !isTouch) {
+ return;
+ }
+
+ if (this.ignore_drag(e)) {
+ return;
+ }
+
+ var self = this;
+ var first = true;
+ this.$player = $(e.currentTarget);
+
+ this.el_init_pos = this.get_actual_pos(this.$player);
+ this.mouse_init_pos = this.get_mouse_pos(e);
+ this.offsetY = this.mouse_init_pos.top - this.el_init_pos.top;
+
+ this.$document.on(pointer_events.move, function(mme) {
+ var mouse_actual_pos = self.get_mouse_pos(mme);
+ var diff_x = Math.abs(
+ mouse_actual_pos.left - self.mouse_init_pos.left);
+ var diff_y = Math.abs(
+ mouse_actual_pos.top - self.mouse_init_pos.top);
+ if (!(diff_x > self.options.distance ||
+ diff_y > self.options.distance)
+ ) {
+ return false;
+ }
+
+ if (first) {
+ first = false;
+ self.on_dragstart.call(self, mme);
+ return false;
+ }
+
+ if (self.is_dragging === true) {
+ self.on_dragmove.call(self, mme);
+ }
+
+ return false;
+ });
+
+ if (!isTouch) { return false; }
+ };
+
+
+ fn.on_dragstart = function(e) {
+ e.preventDefault();
+
+ if (this.is_dragging) { return this; }
+
+ this.drag_start = this.is_dragging = true;
+ var offset = this.$container.offset();
+ this.baseX = Math.round(offset.left);
+ this.baseY = Math.round(offset.top);
+ this.initial_container_width = this.options.container_width || this.$container.width();
+
+ if (this.options.helper === 'clone') {
+ this.$helper = this.$player.clone()
+ .appendTo(this.$container).addClass('helper');
+ this.helper = true;
+ } else {
+ this.helper = false;
+ }
+
+ this.win_offset_y = $(window).scrollTop();
+ this.win_offset_x = $(window).scrollLeft();
+ this.scroll_offset_y = 0;
+ this.scroll_offset_x = 0;
+ this.el_init_offset = this.$player.offset();
+ this.player_width = this.$player.width();
+ this.player_height = this.$player.height();
+
+ this.set_limits(this.options.container_width);
+
+ if (this.options.start) {
+ this.options.start.call(this.$player, e, this.get_drag_data(e));
+ }
+ return false;
+ };
+
+
+ fn.on_dragmove = function(e) {
+ var data = this.get_drag_data(e);
+
+ this.options.autoscroll && this.manage_scroll(data);
+
+ if (this.options.move_element) {
+ (this.helper ? this.$helper : this.$player).css({
+ 'position': 'absolute',
+ 'left' : data.position.left,
+ 'top' : data.position.top
+ });
+ }
+
+ var last_position = this.last_position || data.position;
+ data.prev_position = last_position;
+
+ if (this.options.drag) {
+ this.options.drag.call(this.$player, e, data);
+ }
+
+ this.last_position = data.position;
+ return false;
+ };
+
+
+ fn.on_dragstop = function(e) {
+ var data = this.get_drag_data(e);
+ this.drag_start = false;
+
+ if (this.options.stop) {
+ this.options.stop.call(this.$player, e, data);
+ }
+
+ if (this.helper && this.options.remove_helper) {
+ this.$helper.remove();
+ }
+
+ return false;
+ };
+
+ fn.on_select_start = function(e) {
+ if (this.disabled) { return; }
+
+ if (this.ignore_drag(e)) {
+ return;
+ }
+
+ return false;
+ };
+
+ fn.enable = function() {
+ this.disabled = false;
+ };
+
+ fn.disable = function() {
+ this.disabled = true;
+ };
+
+ fn.destroy = function() {
+ this.disable();
+
+ this.$container.off('.gridster-draggable');
+ this.$document.off('.gridster-draggable');
+ $(window).off('.gridster-draggable');
+
+ $.removeData(this.$container, 'drag');
+ };
+
+ fn.ignore_drag = function(event) {
+ if (this.options.handle) {
+ return !$(event.target).is(this.options.handle);
+ }
+
+ if ($.isFunction(this.options.ignore_dragging)) {
+ return this.options.ignore_dragging(event);
+ }
+
+ return $(event.target).is(this.options.ignore_dragging.join(', '));
+ };
+
+ //jQuery adapter
+ $.fn.drag = function ( options ) {
+ return new Draggable(this, options);
+ };
+
+ return Draggable;
+
+}));
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define(['jquery', 'gridster-draggable', 'gridster-collision'], factory);
+ } else {
+ root.Gridster = factory(root.$ || root.jQuery, root.GridsterDraggable,
+ root.GridsterCollision);
+ }
+
+ }(this, function($, Draggable, Collision) {
+
+ var defaults = {
+ namespace: '',
+ widget_selector: 'li',
+ widget_margins: [10, 10],
+ widget_base_dimensions: [400, 225],
+ extra_rows: 0,
+ extra_cols: 0,
+ min_cols: 1,
+ max_cols: Infinity,
+ min_rows: 15,
+ max_size_x: false,
+ autogrow_cols: false,
+ autogenerate_stylesheet: true,
+ avoid_overlapped_widgets: true,
+ auto_init: true,
+ serialize_params: function($w, wgd) {
+ return {
+ col: wgd.col,
+ row: wgd.row,
+ size_x: wgd.size_x,
+ size_y: wgd.size_y
+ };
+ },
+ collision: {},
+ draggable: {
+ items: '.gs-w',
+ distance: 4,
+ ignore_dragging: Draggable.defaults.ignore_dragging.slice(0)
+ },
+ resize: {
+ enabled: false,
+ axes: ['both'],
+ handle_append_to: '',
+ handle_class: 'gs-resize-handle',
+ max_size: [Infinity, Infinity],
+ min_size: [1, 1]
+ }
+ };
+
+ /**
+ * @class Gridster
+ * @uses Draggable
+ * @uses Collision
+ * @param {HTMLElement} el The HTMLelement that contains all the widgets.
+ * @param {Object} [options] An Object with all options you want to
+ * overwrite:
+ * @param {HTMLElement|String} [options.widget_selector] Define who will
+ * be the draggable widgets. Can be a CSS Selector String or a
+ * collection of HTMLElements
+ * @param {Array} [options.widget_margins] Margin between widgets.
+ * The first index for the horizontal margin (left, right) and
+ * the second for the vertical margin (top, bottom).
+ * @param {Array} [options.widget_base_dimensions] Base widget dimensions
+ * in pixels. The first index for the width and the second for the
+ * height.
+ * @param {Number} [options.extra_cols] Add more columns in addition to
+ * those that have been calculated.
+ * @param {Number} [options.extra_rows] Add more rows in addition to
+ * those that have been calculated.
+ * @param {Number} [options.min_cols] The minimum required columns.
+ * @param {Number} [options.max_cols] The maximum columns possible (set to null
+ * for no maximum).
+ * @param {Number} [options.min_rows] The minimum required rows.
+ * @param {Number} [options.max_size_x] The maximum number of columns
+ * that a widget can span.
+ * @param {Boolean} [options.autogenerate_stylesheet] If true, all the
+ * CSS required to position all widgets in their respective columns
+ * and rows will be generated automatically and injected to the
+ * `` of the document. You can set this to false, and write
+ * your own CSS targeting rows and cols via data-attributes like so:
+ * `[data-col="1"] { left: 10px; }`
+ * @param {Boolean} [options.avoid_overlapped_widgets] Avoid that widgets loaded
+ * from the DOM can be overlapped. It is helpful if the positions were
+ * bad stored in the database or if there was any conflict.
+ * @param {Boolean} [options.auto_init] Automatically call gridster init
+ * method or not when the plugin is instantiated.
+ * @param {Function} [options.serialize_params] Return the data you want
+ * for each widget in the serialization. Two arguments are passed:
+ * `$w`: the jQuery wrapped HTMLElement, and `wgd`: the grid
+ * coords object (`col`, `row`, `size_x`, `size_y`).
+ * @param {Object} [options.collision] An Object with all options for
+ * Collision class you want to overwrite. See Collision docs for
+ * more info.
+ * @param {Object} [options.draggable] An Object with all options for
+ * Draggable class you want to overwrite. See Draggable docs for more
+ * info.
+ * @param {Object|Function} [options.draggable.ignore_dragging] Note that
+ * if you use a Function, and resize is enabled, you should ignore the
+ * resize handlers manually (options.resize.handle_class).
+ * @param {Object} [options.resize] An Object with resize config options.
+ * @param {Boolean} [options.resize.enabled] Set to true to enable
+ * resizing.
+ * @param {Array} [options.resize.axes] Axes in which widgets can be
+ * resized. Possible values: ['x', 'y', 'both'].
+ * @param {String} [options.resize.handle_append_to] Set a valid CSS
+ * selector to append resize handles to.
+ * @param {String} [options.resize.handle_class] CSS class name used
+ * by resize handles.
+ * @param {Array} [options.resize.max_size] Limit widget dimensions
+ * when resizing. Array values should be integers:
+ * `[max_cols_occupied, max_rows_occupied]`
+ * @param {Array} [options.resize.min_size] Limit widget dimensions
+ * when resizing. Array values should be integers:
+ * `[min_cols_occupied, min_rows_occupied]`
+ * @param {Function} [options.resize.start] Function executed
+ * when resizing starts.
+ * @param {Function} [otions.resize.resize] Function executed
+ * during the resizing.
+ * @param {Function} [options.resize.stop] Function executed
+ * when resizing stops.
+ *
+ * @constructor
+ */
+ function Gridster(el, options) {
+ this.options = $.extend(true, {}, defaults, options);
+ this.$el = $(el);
+ this.$wrapper = this.$el.parent();
+ this.$widgets = this.$el.children(
+ this.options.widget_selector).addClass('gs-w');
+ this.widgets = [];
+ this.$changed = $([]);
+ this.wrapper_width = this.$wrapper.width();
+ this.min_widget_width = (this.options.widget_margins[0] * 2) +
+ this.options.widget_base_dimensions[0];
+ this.min_widget_height = (this.options.widget_margins[1] * 2) +
+ this.options.widget_base_dimensions[1];
+
+ this.generated_stylesheets = [];
+ this.$style_tags = $([]);
+
+ this.options.auto_init && this.init();
+ }
+
+ Gridster.defaults = defaults;
+ Gridster.generated_stylesheets = [];
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) in ascending way.
+ *
+ * @method sort_by_row_asc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_row_asc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (!a.row) {
+ a = $(a).coords().grid;
+ b = $(b).coords().grid;
+ }
+
+ if (a.row > b.row) {
+ return 1;
+ }
+ return -1;
+ });
+
+ return widgets;
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) placing first the empty cells upper left.
+ *
+ * @method sort_by_row_and_col_asc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_row_and_col_asc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (a.row > b.row || a.row === b.row && a.col > b.col) {
+ return 1;
+ }
+ return -1;
+ });
+
+ return widgets;
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects by column (representing the grid
+ * coords of each widget) in ascending way.
+ *
+ * @method sort_by_col_asc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_col_asc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (a.col > b.col) {
+ return 1;
+ }
+ return -1;
+ });
+
+ return widgets;
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) in descending way.
+ *
+ * @method sort_by_row_desc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_row_desc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (a.row + a.size_y < b.row + b.size_y) {
+ return 1;
+ }
+ return -1;
+ });
+ return widgets;
+ };
+
+
+
+ /** Instance Methods **/
+
+ var fn = Gridster.prototype;
+
+ fn.init = function() {
+ this.options.resize.enabled && this.setup_resize();
+ this.generate_grid_and_stylesheet();
+ this.get_widgets_from_DOM();
+ this.set_dom_grid_height();
+ this.set_dom_grid_width();
+ this.$wrapper.addClass('ready');
+ this.draggable();
+ this.options.resize.enabled && this.resizable();
+
+ $(window).bind('resize.gridster', throttle(
+ $.proxy(this.recalculate_faux_grid, this), 200));
+ };
+
+
+ /**
+ * Disables dragging.
+ *
+ * @method disable
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.disable = function() {
+ this.$wrapper.find('.player-revert').removeClass('player-revert');
+ this.drag_api.disable();
+ return this;
+ };
+
+
+ /**
+ * Enables dragging.
+ *
+ * @method enable
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.enable = function() {
+ this.drag_api.enable();
+ return this;
+ };
+
+
+
+ /**
+ * Disables drag-and-drop widget resizing.
+ *
+ * @method disable
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.disable_resize = function() {
+ this.$el.addClass('gs-resize-disabled');
+ this.resize_api.disable();
+ return this;
+ };
+
+
+ /**
+ * Enables drag-and-drop widget resizing.
+ *
+ * @method enable
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.enable_resize = function() {
+ this.$el.removeClass('gs-resize-disabled');
+ this.resize_api.enable();
+ return this;
+ };
+
+
+ /**
+ * Add a new widget to the grid.
+ *
+ * @method add_widget
+ * @param {String|HTMLElement} html The string representing the HTML of the widget
+ * or the HTMLElement.
+ * @param {Number} [size_x] The nº of rows the widget occupies horizontally.
+ * @param {Number} [size_y] The nº of columns the widget occupies vertically.
+ * @param {Number} [col] The column the widget should start in.
+ * @param {Number} [row] The row the widget should start in.
+ * @param {Array} [max_size] max_size Maximun size (in units) for width and height.
+ * @param {Array} [min_size] min_size Minimum size (in units) for width and height.
+ * @return {HTMLElement} Returns the jQuery wrapped HTMLElement representing.
+ * the widget that was just created.
+ */
+ fn.add_widget = function(html, size_x, size_y, col, row, max_size, min_size) {
+ var pos;
+ size_x || (size_x = 1);
+ size_y || (size_y = 1);
+
+ if (!col & !row) {
+ pos = this.next_position(size_x, size_y);
+ } else {
+ pos = {
+ col: col,
+ row: row,
+ size_x: size_x,
+ size_y: size_y
+ };
+
+ this.empty_cells(col, row, size_x, size_y);
+ }
+
+ var $w = $(html).attr({
+ 'data-col': pos.col,
+ 'data-row': pos.row,
+ 'data-sizex' : size_x,
+ 'data-sizey' : size_y
+ }).addClass('gs-w').appendTo(this.$el).hide();
+
+ this.$widgets = this.$widgets.add($w);
+
+ this.register_widget($w);
+
+ this.add_faux_rows(pos.size_y);
+ //this.add_faux_cols(pos.size_x);
+
+ if (max_size) {
+ this.set_widget_max_size($w, max_size);
+ }
+
+ if (min_size) {
+ this.set_widget_min_size($w, min_size);
+ }
+
+ this.set_dom_grid_width();
+ this.set_dom_grid_height();
+
+ this.drag_api.set_limits(this.cols * this.min_widget_width);
+
+ return $w.fadeIn();
+ };
+
+
+ /**
+ * Change widget size limits.
+ *
+ * @method set_widget_min_size
+ * @param {HTMLElement|Number} $widget The jQuery wrapped HTMLElement
+ * representing the widget or an index representing the desired widget.
+ * @param {Array} min_size Minimum size (in units) for width and height.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.set_widget_min_size = function($widget, min_size) {
+ $widget = typeof $widget === 'number' ?
+ this.$widgets.eq($widget) : $widget;
+
+ if (!$widget.length) { return this; }
+
+ var wgd = $widget.data('coords').grid;
+ wgd.min_size_x = min_size[0];
+ wgd.min_size_y = min_size[1];
+
+ return this;
+ };
+
+
+ /**
+ * Change widget size limits.
+ *
+ * @method set_widget_max_size
+ * @param {HTMLElement|Number} $widget The jQuery wrapped HTMLElement
+ * representing the widget or an index representing the desired widget.
+ * @param {Array} max_size Maximun size (in units) for width and height.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.set_widget_max_size = function($widget, max_size) {
+ $widget = typeof $widget === 'number' ?
+ this.$widgets.eq($widget) : $widget;
+
+ if (!$widget.length) { return this; }
+
+ var wgd = $widget.data('coords').grid;
+ wgd.max_size_x = max_size[0];
+ wgd.max_size_y = max_size[1];
+
+ return this;
+ };
+
+
+ /**
+ * Append the resize handle into a widget.
+ *
+ * @method add_resize_handle
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
+ * representing the widget.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.add_resize_handle = function($w) {
+ var append_to = this.options.resize.handle_append_to;
+ $(this.resize_handle_tpl).appendTo( append_to ? $(append_to, $w) : $w);
+
+ return this;
+ };
+
+
+ /**
+ * Change the size of a widget. Width is limited to the current grid width.
+ *
+ * @method resize_widget
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
+ * representing the widget.
+ * @param {Number} size_x The number of columns that will occupy the widget.
+ * By default size_x is limited to the space available from
+ * the column where the widget begins, until the last column to the right.
+ * @param {Number} size_y The number of rows that will occupy the widget.
+ * @param {Function} [callback] Function executed when the widget is removed.
+ * @return {HTMLElement} Returns $widget.
+ */
+ fn.resize_widget = function($widget, size_x, size_y, callback) {
+ var wgd = $widget.coords().grid;
+ var col = wgd.col;
+ var max_cols = this.options.max_cols;
+ var old_size_y = wgd.size_y;
+ var old_col = wgd.col;
+ var new_col = old_col;
+
+ size_x || (size_x = wgd.size_x);
+ size_y || (size_y = wgd.size_y);
+
+ if (max_cols !== Infinity) {
+ size_x = Math.min(size_x, max_cols - col + 1);
+ }
+
+ if (size_y > old_size_y) {
+ this.add_faux_rows(Math.max(size_y - old_size_y, 0));
+ }
+
+ var player_rcol = (col + size_x - 1);
+ if (player_rcol > this.cols) {
+ this.add_faux_cols(player_rcol - this.cols);
+ }
+
+ var new_grid_data = {
+ col: new_col,
+ row: wgd.row,
+ size_x: size_x,
+ size_y: size_y
+ };
+
+ this.mutate_widget_in_gridmap($widget, wgd, new_grid_data);
+
+ this.set_dom_grid_height();
+ this.set_dom_grid_width();
+
+ if (callback) {
+ callback.call(this, new_grid_data.size_x, new_grid_data.size_y);
+ }
+
+ return $widget;
+ };
+
+
+ /**
+ * Mutate widget dimensions and position in the grid map.
+ *
+ * @method mutate_widget_in_gridmap
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
+ * representing the widget to mutate.
+ * @param {Object} wgd Current widget grid data (col, row, size_x, size_y).
+ * @param {Object} new_wgd New widget grid data.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.mutate_widget_in_gridmap = function($widget, wgd, new_wgd) {
+ var old_size_x = wgd.size_x;
+ var old_size_y = wgd.size_y;
+
+ var old_cells_occupied = this.get_cells_occupied(wgd);
+ var new_cells_occupied = this.get_cells_occupied(new_wgd);
+
+ var empty_cols = [];
+ $.each(old_cells_occupied.cols, function(i, col) {
+ if ($.inArray(col, new_cells_occupied.cols) === -1) {
+ empty_cols.push(col);
+ }
+ });
+
+ var occupied_cols = [];
+ $.each(new_cells_occupied.cols, function(i, col) {
+ if ($.inArray(col, old_cells_occupied.cols) === -1) {
+ occupied_cols.push(col);
+ }
+ });
+
+ var empty_rows = [];
+ $.each(old_cells_occupied.rows, function(i, row) {
+ if ($.inArray(row, new_cells_occupied.rows) === -1) {
+ empty_rows.push(row);
+ }
+ });
+
+ var occupied_rows = [];
+ $.each(new_cells_occupied.rows, function(i, row) {
+ if ($.inArray(row, old_cells_occupied.rows) === -1) {
+ occupied_rows.push(row);
+ }
+ });
+
+ this.remove_from_gridmap(wgd);
+
+ if (occupied_cols.length) {
+ var cols_to_empty = [
+ new_wgd.col, new_wgd.row, new_wgd.size_x, Math.min(old_size_y, new_wgd.size_y), $widget
+ ];
+ this.empty_cells.apply(this, cols_to_empty);
+ }
+
+ if (occupied_rows.length) {
+ var rows_to_empty = [new_wgd.col, new_wgd.row, new_wgd.size_x, new_wgd.size_y, $widget];
+ this.empty_cells.apply(this, rows_to_empty);
+ }
+
+ // not the same that wgd = new_wgd;
+ wgd.col = new_wgd.col;
+ wgd.row = new_wgd.row;
+ wgd.size_x = new_wgd.size_x;
+ wgd.size_y = new_wgd.size_y;
+
+ this.add_to_gridmap(new_wgd, $widget);
+
+ $widget.removeClass('player-revert');
+
+ //update coords instance attributes
+ $widget.data('coords').update({
+ width: (new_wgd.size_x * this.options.widget_base_dimensions[0] +
+ ((new_wgd.size_x - 1) * this.options.widget_margins[0]) * 2),
+ height: (new_wgd.size_y * this.options.widget_base_dimensions[1] +
+ ((new_wgd.size_y - 1) * this.options.widget_margins[1]) * 2)
+ });
+
+ $widget.attr({
+ 'data-col': new_wgd.col,
+ 'data-row': new_wgd.row,
+ 'data-sizex': new_wgd.size_x,
+ 'data-sizey': new_wgd.size_y
+ });
+
+ if (empty_cols.length) {
+ var cols_to_remove_holes = [
+ empty_cols[0], new_wgd.row,
+ empty_cols.length,
+ Math.min(old_size_y, new_wgd.size_y),
+ $widget
+ ];
+
+ this.remove_empty_cells.apply(this, cols_to_remove_holes);
+ }
+
+ if (empty_rows.length) {
+ var rows_to_remove_holes = [
+ new_wgd.col, new_wgd.row, new_wgd.size_x, new_wgd.size_y, $widget
+ ];
+ this.remove_empty_cells.apply(this, rows_to_remove_holes);
+ }
+
+ this.move_widget_up($widget);
+
+ return this;
+ };
+
+
+ /**
+ * Move down widgets in cells represented by the arguments col, row, size_x,
+ * size_y
+ *
+ * @method empty_cells
+ * @param {Number} col The column where the group of cells begin.
+ * @param {Number} row The row where the group of cells begin.
+ * @param {Number} size_x The number of columns that the group of cells
+ * occupy.
+ * @param {Number} size_y The number of rows that the group of cells
+ * occupy.
+ * @param {HTMLElement} $exclude Exclude widgets from being moved.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.empty_cells = function(col, row, size_x, size_y, $exclude) {
+ var $nexts = this.widgets_below({
+ col: col,
+ row: row - size_y,
+ size_x: size_x,
+ size_y: size_y
+ });
+
+ $nexts.not($exclude).each($.proxy(function(i, w) {
+ var wgd = $(w).coords().grid;
+ if ( !(wgd.row <= (row + size_y - 1))) { return; }
+ var diff = (row + size_y) - wgd.row;
+ this.move_widget_down($(w), diff);
+ }, this));
+
+ this.set_dom_grid_height();
+
+ return this;
+ };
+
+
+ /**
+ * Move up widgets below cells represented by the arguments col, row, size_x,
+ * size_y.
+ *
+ * @method remove_empty_cells
+ * @param {Number} col The column where the group of cells begin.
+ * @param {Number} row The row where the group of cells begin.
+ * @param {Number} size_x The number of columns that the group of cells
+ * occupy.
+ * @param {Number} size_y The number of rows that the group of cells
+ * occupy.
+ * @param {HTMLElement} exclude Exclude widgets from being moved.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_empty_cells = function(col, row, size_x, size_y, exclude) {
+ var $nexts = this.widgets_below({
+ col: col,
+ row: row,
+ size_x: size_x,
+ size_y: size_y
+ });
+
+ $nexts.not(exclude).each($.proxy(function(i, widget) {
+ this.move_widget_up( $(widget), size_y );
+ }, this));
+
+ this.set_dom_grid_height();
+
+ return this;
+ };
+
+
+ /**
+ * Get the most left column below to add a new widget.
+ *
+ * @method next_position
+ * @param {Number} size_x The nº of rows the widget occupies horizontally.
+ * @param {Number} size_y The nº of columns the widget occupies vertically.
+ * @return {Object} Returns a grid coords object representing the future
+ * widget coords.
+ */
+ fn.next_position = function(size_x, size_y) {
+ size_x || (size_x = 1);
+ size_y || (size_y = 1);
+ var ga = this.gridmap;
+ var cols_l = ga.length;
+ var valid_pos = [];
+ var rows_l;
+
+ for (var c = 1; c < cols_l; c++) {
+ rows_l = ga[c].length;
+ for (var r = 1; r <= rows_l; r++) {
+ var can_move_to = this.can_move_to({
+ size_x: size_x,
+ size_y: size_y
+ }, c, r);
+
+ if (can_move_to) {
+ valid_pos.push({
+ col: c,
+ row: r,
+ size_y: size_y,
+ size_x: size_x
+ });
+ }
+ }
+ }
+
+ if (valid_pos.length) {
+ return Gridster.sort_by_row_and_col_asc(valid_pos)[0];
+ }
+ return false;
+ };
+
+
+ /**
+ * Remove a widget from the grid.
+ *
+ * @method remove_widget
+ * @param {HTMLElement} el The jQuery wrapped HTMLElement you want to remove.
+ * @param {Boolean|Function} silent If true, widgets below the removed one
+ * will not move up. If a Function is passed it will be used as callback.
+ * @param {Function} callback Function executed when the widget is removed.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_widget = function(el, silent, callback) {
+ var $el = el instanceof $ ? el : $(el);
+ var wgd = $el.coords().grid;
+
+ // if silent is a function assume it's a callback
+ if ($.isFunction(silent)) {
+ callback = silent;
+ silent = false;
+ }
+
+ this.cells_occupied_by_placeholder = {};
+ this.$widgets = this.$widgets.not($el);
+
+ var $nexts = this.widgets_below($el);
+
+ this.remove_from_gridmap(wgd);
+
+ $el.fadeOut($.proxy(function() {
+ $el.remove();
+
+ if (!silent) {
+ $nexts.each($.proxy(function(i, widget) {
+ this.move_widget_up( $(widget), wgd.size_y );
+ }, this));
+ }
+
+ this.set_dom_grid_height();
+
+ if (callback) {
+ callback.call(this, el);
+ }
+ }, this));
+
+ return this;
+ };
+
+
+ /**
+ * Remove all widgets from the grid.
+ *
+ * @method remove_all_widgets
+ * @param {Function} callback Function executed for each widget removed.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_all_widgets = function(callback) {
+ this.$widgets.each($.proxy(function(i, el){
+ this.remove_widget(el, true, callback);
+ }, this));
+
+ return this;
+ };
+
+
+ /**
+ * Returns a serialized array of the widgets in the grid.
+ *
+ * @method serialize
+ * @param {HTMLElement} [$widgets] The collection of jQuery wrapped
+ * HTMLElements you want to serialize. If no argument is passed all widgets
+ * will be serialized.
+ * @return {Array} Returns an Array of Objects with the data specified in
+ * the serialize_params option.
+ */
+ fn.serialize = function($widgets) {
+ $widgets || ($widgets = this.$widgets);
+
+ return $widgets.map($.proxy(function(i, widget) {
+ var $w = $(widget);
+ return this.options.serialize_params($w, $w.coords().grid);
+ }, this));
+ };
+
+
+ /**
+ * Returns a serialized array of the widgets that have changed their
+ * position.
+ *
+ * @method serialize_changed
+ * @return {Array} Returns an Array of Objects with the data specified in
+ * the serialize_params option.
+ */
+ fn.serialize_changed = function() {
+ return this.serialize(this.$changed);
+ };
+
+
+ /**
+ * Convert widgets from DOM elements to "widget grid data" Objects.
+ *
+ * @method dom_to_coords
+ * @param {HTMLElement} $widget The widget to be converted.
+ */
+ fn.dom_to_coords = function($widget) {
+ return {
+ 'col': parseInt($widget.attr('data-col'), 10),
+ 'row': parseInt($widget.attr('data-row'), 10),
+ 'size_x': parseInt($widget.attr('data-sizex'), 10) || 1,
+ 'size_y': parseInt($widget.attr('data-sizey'), 10) || 1,
+ 'max_size_x': parseInt($widget.attr('data-max-sizex'), 10) || false,
+ 'max_size_y': parseInt($widget.attr('data-max-sizey'), 10) || false,
+ 'min_size_x': parseInt($widget.attr('data-min-sizex'), 10) || false,
+ 'min_size_y': parseInt($widget.attr('data-min-sizey'), 10) || false,
+ 'el': $widget
+ };
+ };
+
+
+ /**
+ * Creates the grid coords object representing the widget an add it to the
+ * mapped array of positions.
+ *
+ * @method register_widget
+ * @param {HTMLElement|Object} $el jQuery wrapped HTMLElement representing
+ * the widget, or an "widget grid data" Object with (col, row, el ...).
+ * @return {Boolean} Returns true if the widget final position is different
+ * than the original.
+ */
+ fn.register_widget = function($el) {
+ var isDOM = $el instanceof jQuery;
+ var wgd = isDOM ? this.dom_to_coords($el) : $el;
+ isDOM || ($el = wgd.el);
+
+ var empty_upper_row = this.can_go_widget_up(wgd);
+ if (empty_upper_row) {
+ wgd.row = empty_upper_row;
+ $el.attr('data-row', empty_upper_row);
+ this.$el.trigger('gridster:positionchanged', [wgd]);
+ }
+
+ if (this.options.avoid_overlapped_widgets &&
+ !this.can_move_to(
+ {size_x: wgd.size_x, size_y: wgd.size_y}, wgd.col, wgd.row)
+ ) {
+ $.extend(wgd, this.next_position(wgd.size_x, wgd.size_y));
+ $el.attr({
+ 'data-col': wgd.col,
+ 'data-row': wgd.row,
+ 'data-sizex': wgd.size_x,
+ 'data-sizey': wgd.size_y
+ });
+ }
+
+ // attach Coord object to player data-coord attribute
+ $el.data('coords', $el.coords());
+ // Extend Coord object with grid position info
+ $el.data('coords').grid = wgd;
+
+ this.add_to_gridmap(wgd, $el);
+
+ this.options.resize.enabled && this.add_resize_handle($el);
+
+ return !! empty_upper_row;
+ };
+
+
+ /**
+ * Update in the mapped array of positions the value of cells represented by
+ * the grid coords object passed in the `grid_data` param.
+ *
+ * @param {Object} grid_data The grid coords object representing the cells
+ * to update in the mapped array.
+ * @param {HTMLElement|Boolean} value Pass `false` or the jQuery wrapped
+ * HTMLElement, depends if you want to delete an existing position or add
+ * a new one.
+ * @method update_widget_position
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.update_widget_position = function(grid_data, value) {
+ this.for_each_cell_occupied(grid_data, function(col, row) {
+ if (!this.gridmap[col]) { return this; }
+ this.gridmap[col][row] = value;
+ });
+ return this;
+ };
+
+
+ /**
+ * Remove a widget from the mapped array of positions.
+ *
+ * @method remove_from_gridmap
+ * @param {Object} grid_data The grid coords object representing the cells
+ * to update in the mapped array.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_from_gridmap = function(grid_data) {
+ return this.update_widget_position(grid_data, false);
+ };
+
+
+ /**
+ * Add a widget to the mapped array of positions.
+ *
+ * @method add_to_gridmap
+ * @param {Object} grid_data The grid coords object representing the cells
+ * to update in the mapped array.
+ * @param {HTMLElement|Boolean} value The value to set in the specified
+ * position .
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.add_to_gridmap = function(grid_data, value) {
+ this.update_widget_position(grid_data, value || grid_data.el);
+
+ if (grid_data.el) {
+ var $widgets = this.widgets_below(grid_data.el);
+ $widgets.each($.proxy(function(i, widget) {
+ this.move_widget_up( $(widget));
+ }, this));
+ }
+ };
+
+
+ /**
+ * Make widgets draggable.
+ *
+ * @uses Draggable
+ * @method draggable
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.draggable = function() {
+ var self = this;
+ var draggable_options = $.extend(true, {}, this.options.draggable, {
+ offset_left: this.options.widget_margins[0],
+ offset_top: this.options.widget_margins[1],
+ container_width: this.cols * this.min_widget_width,
+ limit: true,
+ start: function(event, ui) {
+ self.$widgets.filter('.player-revert')
+ .removeClass('player-revert');
+
+ self.$player = $(this);
+ self.$helper = $(ui.$helper);
+
+ self.helper = !self.$helper.is(self.$player);
+
+ self.on_start_drag.call(self, event, ui);
+ self.$el.trigger('gridster:dragstart');
+ },
+ stop: function(event, ui) {
+ self.on_stop_drag.call(self, event, ui);
+ self.$el.trigger('gridster:dragstop');
+ },
+ drag: throttle(function(event, ui) {
+ self.on_drag.call(self, event, ui);
+ self.$el.trigger('gridster:drag');
+ }, 60)
+ });
+
+ this.drag_api = this.$el.drag(draggable_options);
+ return this;
+ };
+
+
+ /**
+ * Bind resize events to get resize working.
+ *
+ * @method resizable
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.resizable = function() {
+ this.resize_api = this.$el.drag({
+ items: '.' + this.options.resize.handle_class,
+ offset_left: this.options.widget_margins[0],
+ container_width: this.container_width,
+ move_element: false,
+ resize: true,
+ limit: this.options.autogrow_cols ? false : true,
+ start: $.proxy(this.on_start_resize, this),
+ stop: $.proxy(function(event, ui) {
+ delay($.proxy(function() {
+ this.on_stop_resize(event, ui);
+ }, this), 120);
+ }, this),
+ drag: throttle($.proxy(this.on_resize, this), 60)
+ });
+
+ return this;
+ };
+
+
+ /**
+ * Setup things required for resizing. Like build templates for drag handles.
+ *
+ * @method setup_resize
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.setup_resize = function() {
+ this.resize_handle_class = this.options.resize.handle_class;
+ var axes = this.options.resize.axes;
+ var handle_tpl = '';
+
+ this.resize_handle_tpl = $.map(axes, function(type) {
+ return handle_tpl.replace('{type}', type);
+ }).join('');
+
+ if ($.isArray(this.options.draggable.ignore_dragging)) {
+ this.options.draggable.ignore_dragging.push(
+ '.' + this.resize_handle_class);
+ }
+
+ return this;
+ };
+
+
+ /**
+ * This function is executed when the player begins to be dragged.
+ *
+ * @method on_start_drag
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_start_drag = function(event, ui) {
+ this.$helper.add(this.$player).add(this.$wrapper).addClass('dragging');
+
+ this.highest_col = this.get_highest_occupied_cell().col;
+
+ this.$player.addClass('player');
+ this.player_grid_data = this.$player.coords().grid;
+ this.placeholder_grid_data = $.extend({}, this.player_grid_data);
+
+ this.set_dom_grid_height(this.$el.height() +
+ (this.player_grid_data.size_y * this.min_widget_height));
+
+ this.set_dom_grid_width(this.cols);
+
+ var pgd_sizex = this.player_grid_data.size_x;
+ var cols_diff = this.cols - this.highest_col;
+
+ if (this.options.autogrow_cols && cols_diff <= pgd_sizex) {
+ this.add_faux_cols(Math.min(pgd_sizex - cols_diff, 1));
+ }
+
+ var colliders = this.faux_grid;
+ var coords = this.$player.data('coords').coords;
+
+ this.cells_occupied_by_player = this.get_cells_occupied(
+ this.player_grid_data);
+ this.cells_occupied_by_placeholder = this.get_cells_occupied(
+ this.placeholder_grid_data);
+
+ this.last_cols = [];
+ this.last_rows = [];
+
+ // see jquery.collision.js
+ this.collision_api = this.$helper.collision(
+ colliders, this.options.collision);
+
+ this.$preview_holder = $('<' + this.$player.get(0).tagName + ' />', {
+ 'class': 'preview-holder',
+ 'data-row': this.$player.attr('data-row'),
+ 'data-col': this.$player.attr('data-col'),
+ css: {
+ width: coords.width,
+ height: coords.height
+ }
+ }).appendTo(this.$el);
+
+ if (this.options.draggable.start) {
+ this.options.draggable.start.call(this, event, ui);
+ }
+ };
+
+
+ /**
+ * This function is executed when the player is being dragged.
+ *
+ * @method on_drag
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_drag = function(event, ui) {
+ //break if dragstop has been fired
+ if (this.$player === null) {
+ return false;
+ }
+
+ var abs_offset = {
+ left: ui.position.left + this.baseX,
+ top: ui.position.top + this.baseY
+ };
+
+ // auto grow cols
+ if (this.options.autogrow_cols) {
+ var prcol = this.placeholder_grid_data.col +
+ this.placeholder_grid_data.size_x - 1;
+
+ // "- 1" due to adding at least 1 column in on_start_drag
+ if (prcol >= this.cols - 1 && this.options.max_cols >= this.cols + 1) {
+ this.add_faux_cols(1);
+ this.set_dom_grid_width(this.cols + 1);
+ this.drag_api.set_limits(this.container_width);
+ }
+
+ this.collision_api.set_colliders(this.faux_grid);
+ }
+
+ this.colliders_data = this.collision_api.get_closest_colliders(
+ abs_offset);
+
+ this.on_overlapped_column_change(
+ this.on_start_overlapping_column, this.on_stop_overlapping_column);
+
+ this.on_overlapped_row_change(
+ this.on_start_overlapping_row, this.on_stop_overlapping_row);
+
+
+ if (this.helper && this.$player) {
+ this.$player.css({
+ 'left': ui.position.left,
+ 'top': ui.position.top
+ });
+ }
+
+ if (this.options.draggable.drag) {
+ this.options.draggable.drag.call(this, event, ui);
+ }
+ };
+
+
+ /**
+ * This function is executed when the player stops being dragged.
+ *
+ * @method on_stop_drag
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_stop_drag = function(event, ui) {
+ this.$helper.add(this.$player).add(this.$wrapper)
+ .removeClass('dragging');
+
+ ui.position.left = ui.position.left + this.baseX;
+ ui.position.top = ui.position.top + this.baseY;
+ this.colliders_data = this.collision_api.get_closest_colliders(
+ ui.position);
+
+ this.on_overlapped_column_change(
+ this.on_start_overlapping_column,
+ this.on_stop_overlapping_column
+ );
+
+ this.on_overlapped_row_change(
+ this.on_start_overlapping_row,
+ this.on_stop_overlapping_row
+ );
+
+ this.$player.addClass('player-revert').removeClass('player')
+ .attr({
+ 'data-col': this.placeholder_grid_data.col,
+ 'data-row': this.placeholder_grid_data.row
+ }).css({
+ 'left': '',
+ 'top': ''
+ });
+
+ this.$changed = this.$changed.add(this.$player);
+
+ this.cells_occupied_by_player = this.get_cells_occupied(
+ this.placeholder_grid_data);
+ this.set_cells_player_occupies(
+ this.placeholder_grid_data.col, this.placeholder_grid_data.row);
+
+ this.$player.coords().grid.row = this.placeholder_grid_data.row;
+ this.$player.coords().grid.col = this.placeholder_grid_data.col;
+
+ if (this.options.draggable.stop) {
+ this.options.draggable.stop.call(this, event, ui);
+ }
+
+ this.$preview_holder.remove();
+
+ this.$player = null;
+ this.$helper = null;
+ this.placeholder_grid_data = {};
+ this.player_grid_data = {};
+ this.cells_occupied_by_placeholder = {};
+ this.cells_occupied_by_player = {};
+
+ this.set_dom_grid_height();
+ this.set_dom_grid_width();
+
+ if (this.options.autogrow_cols) {
+ this.drag_api.set_limits(this.cols * this.min_widget_width);
+ }
+ };
+
+
+ /**
+ * This function is executed every time a widget starts to be resized.
+ *
+ * @method on_start_resize
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_start_resize = function(event, ui) {
+ this.$resized_widget = ui.$player.closest('.gs-w');
+ this.resize_coords = this.$resized_widget.coords();
+ this.resize_wgd = this.resize_coords.grid;
+ this.resize_initial_width = this.resize_coords.coords.width;
+ this.resize_initial_height = this.resize_coords.coords.height;
+ this.resize_initial_sizex = this.resize_coords.grid.size_x;
+ this.resize_initial_sizey = this.resize_coords.grid.size_y;
+ this.resize_initial_col = this.resize_coords.grid.col;
+ this.resize_last_sizex = this.resize_initial_sizex;
+ this.resize_last_sizey = this.resize_initial_sizey;
+
+ this.resize_max_size_x = Math.min(this.resize_wgd.max_size_x ||
+ this.options.resize.max_size[0],
+ this.options.max_cols - this.resize_initial_col + 1);
+ this.resize_max_size_y = this.resize_wgd.max_size_y ||
+ this.options.resize.max_size[1];
+
+ this.resize_min_size_x = (this.resize_wgd.min_size_x ||
+ this.options.resize.min_size[0] || 1);
+ this.resize_min_size_y = (this.resize_wgd.min_size_y ||
+ this.options.resize.min_size[1] || 1);
+
+ this.resize_initial_last_col = this.get_highest_occupied_cell().col;
+
+ this.set_dom_grid_width(this.cols);
+
+ this.resize_dir = {
+ right: ui.$player.is('.' + this.resize_handle_class + '-x'),
+ bottom: ui.$player.is('.' + this.resize_handle_class + '-y')
+ };
+
+ this.$resized_widget.css({
+ 'min-width': this.options.widget_base_dimensions[0],
+ 'min-height': this.options.widget_base_dimensions[1]
+ });
+
+ var nodeName = this.$resized_widget.get(0).tagName;
+ this.$resize_preview_holder = $('<' + nodeName + ' />', {
+ 'class': 'preview-holder resize-preview-holder',
+ 'data-row': this.$resized_widget.attr('data-row'),
+ 'data-col': this.$resized_widget.attr('data-col'),
+ 'css': {
+ 'width': this.resize_initial_width,
+ 'height': this.resize_initial_height
+ }
+ }).appendTo(this.$el);
+
+ this.$resized_widget.addClass('resizing');
+
+ if (this.options.resize.start) {
+ this.options.resize.start.call(this, event, ui, this.$resized_widget);
+ }
+
+ this.$el.trigger('gridster:resizestart');
+ };
+
+
+ /**
+ * This function is executed every time a widget stops being resized.
+ *
+ * @method on_stop_resize
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_stop_resize = function(event, ui) {
+ this.$resized_widget
+ .removeClass('resizing')
+ .css({
+ 'width': '',
+ 'height': ''
+ });
+
+ delay($.proxy(function() {
+ this.$resize_preview_holder
+ .remove()
+ .css({
+ 'min-width': '',
+ 'min-height': ''
+ });
+
+ if (this.options.resize.stop) {
+ this.options.resize.stop.call(this, event, ui, this.$resized_widget);
+ }
+
+ this.$el.trigger('gridster:resizestop');
+ }, this), 300);
+
+ this.set_dom_grid_width();
+
+ if (this.options.autogrow_cols) {
+ this.drag_api.set_limits(this.cols * this.min_widget_width);
+ }
+ };
+
+
+ /**
+ * This function is executed when a widget is being resized.
+ *
+ * @method on_resize
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_resize = function(event, ui) {
+ var rel_x = (ui.pointer.diff_left);
+ var rel_y = (ui.pointer.diff_top);
+ var wbd_x = this.options.widget_base_dimensions[0];
+ var wbd_y = this.options.widget_base_dimensions[1];
+ var margin_x = this.options.widget_margins[0];
+ var margin_y = this.options.widget_margins[1];
+ var max_size_x = this.resize_max_size_x;
+ var min_size_x = this.resize_min_size_x;
+ var max_size_y = this.resize_max_size_y;
+ var min_size_y = this.resize_min_size_y;
+ var autogrow = this.options.autogrow_cols;
+ var width;
+ var max_width = Infinity;
+ var max_height = Infinity;
+
+ var inc_units_x = Math.ceil((rel_x / (wbd_x + margin_x * 2)) - 0.2);
+ var inc_units_y = Math.ceil((rel_y / (wbd_y + margin_y * 2)) - 0.2);
+
+ var size_x = Math.max(1, this.resize_initial_sizex + inc_units_x);
+ var size_y = Math.max(1, this.resize_initial_sizey + inc_units_y);
+
+ var max_cols = (this.container_width / this.min_widget_width) -
+ this.resize_initial_col + 1;
+ var limit_width = ((max_cols * this.min_widget_width) - margin_x * 2);
+
+ size_x = Math.max(Math.min(size_x, max_size_x), min_size_x);
+ size_x = Math.min(max_cols, size_x);
+ width = (max_size_x * wbd_x) + ((size_x - 1) * margin_x * 2);
+ max_width = Math.min(width, limit_width);
+ min_width = (min_size_x * wbd_x) + ((size_x - 1) * margin_x * 2);
+
+ size_y = Math.max(Math.min(size_y, max_size_y), min_size_y);
+ max_height = (max_size_y * wbd_y) + ((size_y - 1) * margin_y * 2);
+ min_height = (min_size_y * wbd_y) + ((size_y - 1) * margin_y * 2);
+
+ if (this.resize_dir.right) {
+ size_y = this.resize_initial_sizey;
+ } else if (this.resize_dir.bottom) {
+ size_x = this.resize_initial_sizex;
+ }
+
+ if (autogrow) {
+ var last_widget_col = this.resize_initial_col + size_x - 1;
+ if (autogrow && this.resize_initial_last_col <= last_widget_col) {
+ this.set_dom_grid_width(Math.max(last_widget_col + 1, this.cols));
+
+ if (this.cols < last_widget_col) {
+ this.add_faux_cols(last_widget_col - this.cols);
+ }
+ }
+ }
+
+ var css_props = {};
+ !this.resize_dir.bottom && (css_props.width = Math.max(Math.min(
+ this.resize_initial_width + rel_x, max_width), min_width));
+ !this.resize_dir.right && (css_props.height = Math.max(Math.min(
+ this.resize_initial_height + rel_y, max_height), min_height));
+
+ this.$resized_widget.css(css_props);
+
+ if (size_x !== this.resize_last_sizex ||
+ size_y !== this.resize_last_sizey) {
+
+ this.resize_widget(this.$resized_widget, size_x, size_y);
+ this.set_dom_grid_width(this.cols);
+
+ this.$resize_preview_holder.css({
+ 'width': '',
+ 'height': ''
+ }).attr({
+ 'data-row': this.$resized_widget.attr('data-row'),
+ 'data-sizex': size_x,
+ 'data-sizey': size_y
+ });
+ }
+
+ if (this.options.resize.resize) {
+ this.options.resize.resize.call(this, event, ui, this.$resized_widget);
+ }
+
+ this.$el.trigger('gridster:resize');
+
+ this.resize_last_sizex = size_x;
+ this.resize_last_sizey = size_y;
+ };
+
+
+ /**
+ * Executes the callbacks passed as arguments when a column begins to be
+ * overlapped or stops being overlapped.
+ *
+ * @param {Function} start_callback Function executed when a new column
+ * begins to be overlapped. The column is passed as first argument.
+ * @param {Function} stop_callback Function executed when a column stops
+ * being overlapped. The column is passed as first argument.
+ * @method on_overlapped_column_change
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.on_overlapped_column_change = function(start_callback, stop_callback) {
+ if (!this.colliders_data.length) {
+ return this;
+ }
+ var cols = this.get_targeted_columns(
+ this.colliders_data[0].el.data.col);
+
+ var last_n_cols = this.last_cols.length;
+ var n_cols = cols.length;
+ var i;
+
+ for (i = 0; i < n_cols; i++) {
+ if ($.inArray(cols[i], this.last_cols) === -1) {
+ (start_callback || $.noop).call(this, cols[i]);
+ }
+ }
+
+ for (i = 0; i< last_n_cols; i++) {
+ if ($.inArray(this.last_cols[i], cols) === -1) {
+ (stop_callback || $.noop).call(this, this.last_cols[i]);
+ }
+ }
+
+ this.last_cols = cols;
+
+ return this;
+ };
+
+
+ /**
+ * Executes the callbacks passed as arguments when a row starts to be
+ * overlapped or stops being overlapped.
+ *
+ * @param {Function} start_callback Function executed when a new row begins
+ * to be overlapped. The row is passed as first argument.
+ * @param {Function} end_callback Function executed when a row stops being
+ * overlapped. The row is passed as first argument.
+ * @method on_overlapped_row_change
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.on_overlapped_row_change = function(start_callback, end_callback) {
+ if (!this.colliders_data.length) {
+ return this;
+ }
+ var rows = this.get_targeted_rows(this.colliders_data[0].el.data.row);
+ var last_n_rows = this.last_rows.length;
+ var n_rows = rows.length;
+ var i;
+
+ for (i = 0; i < n_rows; i++) {
+ if ($.inArray(rows[i], this.last_rows) === -1) {
+ (start_callback || $.noop).call(this, rows[i]);
+ }
+ }
+
+ for (i = 0; i < last_n_rows; i++) {
+ if ($.inArray(this.last_rows[i], rows) === -1) {
+ (end_callback || $.noop).call(this, this.last_rows[i]);
+ }
+ }
+
+ this.last_rows = rows;
+ };
+
+
+ /**
+ * Sets the current position of the player
+ *
+ * @param {Number} col
+ * @param {Number} row
+ * @param {Boolean} no_player
+ * @method set_player
+ * @return {object}
+ */
+ fn.set_player = function(col, row, no_player) {
+ var self = this;
+ if (!no_player) {
+ this.empty_cells_player_occupies();
+ }
+ var cell = !no_player ? self.colliders_data[0].el.data : {col: col};
+ var to_col = cell.col;
+ var to_row = row || cell.row;
+
+ this.player_grid_data = {
+ col: to_col,
+ row: to_row,
+ size_y : this.player_grid_data.size_y,
+ size_x : this.player_grid_data.size_x
+ };
+
+ this.cells_occupied_by_player = this.get_cells_occupied(
+ this.player_grid_data);
+
+ var $overlapped_widgets = this.get_widgets_overlapped(
+ this.player_grid_data);
+
+ var constraints = this.widgets_constraints($overlapped_widgets);
+
+ this.manage_movements(constraints.can_go_up, to_col, to_row);
+ this.manage_movements(constraints.can_not_go_up, to_col, to_row);
+
+ /* if there is not widgets overlapping in the new player position,
+ * update the new placeholder position. */
+ if (!$overlapped_widgets.length) {
+ var pp = this.can_go_player_up(this.player_grid_data);
+ if (pp !== false) {
+ to_row = pp;
+ }
+ this.set_placeholder(to_col, to_row);
+ }
+
+ return {
+ col: to_col,
+ row: to_row
+ };
+ };
+
+
+ /**
+ * See which of the widgets in the $widgets param collection can go to
+ * a upper row and which not.
+ *
+ * @method widgets_contraints
+ * @param {jQuery} $widgets A jQuery wrapped collection of
+ * HTMLElements.
+ * @return {object} Returns a literal Object with two keys: `can_go_up` &
+ * `can_not_go_up`. Each contains a set of HTMLElements.
+ */
+ fn.widgets_constraints = function($widgets) {
+ var $widgets_can_go_up = $([]);
+ var $widgets_can_not_go_up;
+ var wgd_can_go_up = [];
+ var wgd_can_not_go_up = [];
+
+ $widgets.each($.proxy(function(i, w) {
+ var $w = $(w);
+ var wgd = $w.coords().grid;
+ if (this.can_go_widget_up(wgd)) {
+ $widgets_can_go_up = $widgets_can_go_up.add($w);
+ wgd_can_go_up.push(wgd);
+ } else {
+ wgd_can_not_go_up.push(wgd);
+ }
+ }, this));
+
+ $widgets_can_not_go_up = $widgets.not($widgets_can_go_up);
+
+ return {
+ can_go_up: Gridster.sort_by_row_asc(wgd_can_go_up),
+ can_not_go_up: Gridster.sort_by_row_desc(wgd_can_not_go_up)
+ };
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) in descending way.
+ *
+ * @method manage_movements
+ * @param {jQuery} $widgets A jQuery collection of HTMLElements
+ * representing the widgets you want to move.
+ * @param {Number} to_col The column to which we want to move the widgets.
+ * @param {Number} to_row The row to which we want to move the widgets.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.manage_movements = function($widgets, to_col, to_row) {
+ $.each($widgets, $.proxy(function(i, w) {
+ var wgd = w;
+ var $w = wgd.el;
+
+ var can_go_widget_up = this.can_go_widget_up(wgd);
+
+ if (can_go_widget_up) {
+ //target CAN go up
+ //so move widget up
+ this.move_widget_to($w, can_go_widget_up);
+ this.set_placeholder(to_col, can_go_widget_up + wgd.size_y);
+
+ } else {
+ //target can't go up
+ var can_go_player_up = this.can_go_player_up(
+ this.player_grid_data);
+
+ if (!can_go_player_up) {
+ // target can't go up
+ // player cant't go up
+ // so we need to move widget down to a position that dont
+ // overlaps player
+ var y = (to_row + this.player_grid_data.size_y) - wgd.row;
+
+ this.move_widget_down($w, y);
+ this.set_placeholder(to_col, to_row);
+ }
+ }
+ }, this));
+
+ return this;
+ };
+
+ /**
+ * Determines if there is a widget in the row and col given. Or if the
+ * HTMLElement passed as first argument is the player.
+ *
+ * @method is_player
+ * @param {Number|HTMLElement} col_or_el A jQuery wrapped collection of
+ * HTMLElements.
+ * @param {Number} [row] The column to which we want to move the widgets.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_player = function(col_or_el, row) {
+ if (row && !this.gridmap[col_or_el]) { return false; }
+ var $w = row ? this.gridmap[col_or_el][row] : col_or_el;
+ return $w && ($w.is(this.$player) || $w.is(this.$helper));
+ };
+
+
+ /**
+ * Determines if the widget that is being dragged is currently over the row
+ * and col given.
+ *
+ * @method is_player_in
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_player_in = function(col, row) {
+ var c = this.cells_occupied_by_player || {};
+ return $.inArray(col, c.cols) >= 0 && $.inArray(row, c.rows) >= 0;
+ };
+
+
+ /**
+ * Determines if the placeholder is currently over the row and col given.
+ *
+ * @method is_placeholder_in
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_placeholder_in = function(col, row) {
+ var c = this.cells_occupied_by_placeholder || {};
+ return this.is_placeholder_in_col(col) && $.inArray(row, c.rows) >= 0;
+ };
+
+
+ /**
+ * Determines if the placeholder is currently over the column given.
+ *
+ * @method is_placeholder_in_col
+ * @param {Number} col The column to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_placeholder_in_col = function(col) {
+ var c = this.cells_occupied_by_placeholder || [];
+ return $.inArray(col, c.cols) >= 0;
+ };
+
+
+ /**
+ * Determines if the cell represented by col and row params is empty.
+ *
+ * @method is_empty
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_empty = function(col, row) {
+ if (typeof this.gridmap[col] !== 'undefined') {
+ if(typeof this.gridmap[col][row] !== 'undefined' &&
+ this.gridmap[col][row] === false
+ ) {
+ return true;
+ }
+ return false;
+ }
+ return true;
+ };
+
+
+ /**
+ * Determines if the cell represented by col and row params is occupied.
+ *
+ * @method is_occupied
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_occupied = function(col, row) {
+ if (!this.gridmap[col]) {
+ return false;
+ }
+
+ if (this.gridmap[col][row]) {
+ return true;
+ }
+ return false;
+ };
+
+
+ /**
+ * Determines if there is a widget in the cell represented by col/row params.
+ *
+ * @method is_widget
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean|HTMLElement} Returns false if there is no widget,
+ * else returns the jQuery HTMLElement
+ */
+ fn.is_widget = function(col, row) {
+ var cell = this.gridmap[col];
+ if (!cell) {
+ return false;
+ }
+
+ cell = cell[row];
+
+ if (cell) {
+ return cell;
+ }
+
+ return false;
+ };
+
+
+ /**
+ * Determines if there is a widget in the cell represented by col/row
+ * params and if this is under the widget that is being dragged.
+ *
+ * @method is_widget_under_player
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_widget_under_player = function(col, row) {
+ if (this.is_widget(col, row)) {
+ return this.is_player_in(col, row);
+ }
+ return false;
+ };
+
+
+ /**
+ * Get widgets overlapping with the player or with the object passed
+ * representing the grid cells.
+ *
+ * @method get_widgets_under_player
+ * @return {HTMLElement} Returns a jQuery collection of HTMLElements
+ */
+ fn.get_widgets_under_player = function(cells) {
+ cells || (cells = this.cells_occupied_by_player || {cols: [], rows: []});
+ var $widgets = $([]);
+
+ $.each(cells.cols, $.proxy(function(i, col) {
+ $.each(cells.rows, $.proxy(function(i, row) {
+ if(this.is_widget(col, row)) {
+ $widgets = $widgets.add(this.gridmap[col][row]);
+ }
+ }, this));
+ }, this));
+
+ return $widgets;
+ };
+
+
+ /**
+ * Put placeholder at the row and column specified.
+ *
+ * @method set_placeholder
+ * @param {Number} col The column to which we want to move the
+ * placeholder.
+ * @param {Number} row The row to which we want to move the
+ * placeholder.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.set_placeholder = function(col, row) {
+ var phgd = $.extend({}, this.placeholder_grid_data);
+ var $nexts = this.widgets_below({
+ col: phgd.col,
+ row: phgd.row,
+ size_y: phgd.size_y,
+ size_x: phgd.size_x
+ });
+
+ // Prevents widgets go out of the grid
+ var right_col = (col + phgd.size_x - 1);
+ if (right_col > this.cols) {
+ col = col - (right_col - col);
+ }
+
+ var moved_down = this.placeholder_grid_data.row < row;
+ var changed_column = this.placeholder_grid_data.col !== col;
+
+ this.placeholder_grid_data.col = col;
+ this.placeholder_grid_data.row = row;
+
+ this.cells_occupied_by_placeholder = this.get_cells_occupied(
+ this.placeholder_grid_data);
+
+ this.$preview_holder.attr({
+ 'data-row' : row,
+ 'data-col' : col
+ });
+
+ if (moved_down || changed_column) {
+ $nexts.each($.proxy(function(i, widget) {
+ this.move_widget_up(
+ $(widget), this.placeholder_grid_data.col - col + phgd.size_y);
+ }, this));
+ }
+
+ var $widgets_under_ph = this.get_widgets_under_player(
+ this.cells_occupied_by_placeholder);
+
+ if ($widgets_under_ph.length) {
+ $widgets_under_ph.each($.proxy(function(i, widget) {
+ var $w = $(widget);
+ this.move_widget_down(
+ $w, row + phgd.size_y - $w.data('coords').grid.row);
+ }, this));
+ }
+
+ };
+
+
+ /**
+ * Determines whether the player can move to a position above.
+ *
+ * @method can_go_player_up
+ * @param {Object} widget_grid_data The actual grid coords object of the
+ * player.
+ * @return {Number|Boolean} If the player can be moved to an upper row
+ * returns the row number, else returns false.
+ */
+ fn.can_go_player_up = function(widget_grid_data) {
+ var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+ var result = true;
+ var upper_rows = [];
+ var min_row = 10000;
+ var $widgets_under_player = this.get_widgets_under_player();
+
+ /* generate an array with columns as index and array with upper rows
+ * empty as value */
+ this.for_each_column_occupied(widget_grid_data, function(tcol) {
+ var grid_col = this.gridmap[tcol];
+ var r = p_bottom_row + 1;
+ upper_rows[tcol] = [];
+
+ while (--r > 0) {
+ if (this.is_empty(tcol, r) || this.is_player(tcol, r) ||
+ this.is_widget(tcol, r) &&
+ grid_col[r].is($widgets_under_player)
+ ) {
+ upper_rows[tcol].push(r);
+ min_row = r < min_row ? r : min_row;
+ } else {
+ break;
+ }
+ }
+
+ if (upper_rows[tcol].length === 0) {
+ result = false;
+ return true; //break
+ }
+
+ upper_rows[tcol].sort(function(a, b) {
+ return a - b;
+ });
+ });
+
+ if (!result) { return false; }
+
+ return this.get_valid_rows(widget_grid_data, upper_rows, min_row);
+ };
+
+
+ /**
+ * Determines whether a widget can move to a position above.
+ *
+ * @method can_go_widget_up
+ * @param {Object} widget_grid_data The actual grid coords object of the
+ * widget we want to check.
+ * @return {Number|Boolean} If the widget can be moved to an upper row
+ * returns the row number, else returns false.
+ */
+ fn.can_go_widget_up = function(widget_grid_data) {
+ var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+ var result = true;
+ var upper_rows = [];
+ var min_row = 10000;
+
+ /* generate an array with columns as index and array with topmost rows
+ * empty as value */
+ this.for_each_column_occupied(widget_grid_data, function(tcol) {
+ var grid_col = this.gridmap[tcol];
+ upper_rows[tcol] = [];
+
+ var r = p_bottom_row + 1;
+ // iterate over each row
+ while (--r > 0) {
+ if (this.is_widget(tcol, r) && !this.is_player_in(tcol, r)) {
+ if (!grid_col[r].is(widget_grid_data.el)) {
+ break;
+ }
+ }
+
+ if (!this.is_player(tcol, r) &&
+ !this.is_placeholder_in(tcol, r) &&
+ !this.is_player_in(tcol, r)) {
+ upper_rows[tcol].push(r);
+ }
+
+ if (r < min_row) {
+ min_row = r;
+ }
+ }
+
+ if (upper_rows[tcol].length === 0) {
+ result = false;
+ return true; //break
+ }
+
+ upper_rows[tcol].sort(function(a, b) {
+ return a - b;
+ });
+ });
+
+ if (!result) { return false; }
+
+ return this.get_valid_rows(widget_grid_data, upper_rows, min_row);
+ };
+
+
+ /**
+ * Search a valid row for the widget represented by `widget_grid_data' in
+ * the `upper_rows` array. Iteration starts from row specified in `min_row`.
+ *
+ * @method get_valid_rows
+ * @param {Object} widget_grid_data The actual grid coords object of the
+ * player.
+ * @param {Array} upper_rows An array with columns as index and arrays
+ * of valid rows as values.
+ * @param {Number} min_row The upper row from which the iteration will start.
+ * @return {Number|Boolean} Returns the upper row valid from the `upper_rows`
+ * for the widget in question.
+ */
+ fn.get_valid_rows = function(widget_grid_data, upper_rows, min_row) {
+ var p_top_row = widget_grid_data.row;
+ var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+ var size_y = widget_grid_data.size_y;
+ var r = min_row - 1;
+ var valid_rows = [];
+
+ while (++r <= p_bottom_row ) {
+ var common = true;
+ $.each(upper_rows, function(col, rows) {
+ if ($.isArray(rows) && $.inArray(r, rows) === -1) {
+ common = false;
+ }
+ });
+
+ if (common === true) {
+ valid_rows.push(r);
+ if (valid_rows.length === size_y) {
+ break;
+ }
+ }
+ }
+
+ var new_row = false;
+ if (size_y === 1) {
+ if (valid_rows[0] !== p_top_row) {
+ new_row = valid_rows[0] || false;
+ }
+ } else {
+ if (valid_rows[0] !== p_top_row) {
+ new_row = this.get_consecutive_numbers_index(
+ valid_rows, size_y);
+ }
+ }
+
+ return new_row;
+ };
+
+
+ fn.get_consecutive_numbers_index = function(arr, size_y) {
+ var max = arr.length;
+ var result = [];
+ var first = true;
+ var prev = -1; // or null?
+
+ for (var i=0; i < max; i++) {
+ if (first || arr[i] === prev + 1) {
+ result.push(i);
+ if (result.length === size_y) {
+ break;
+ }
+ first = false;
+ } else {
+ result = [];
+ first = true;
+ }
+
+ prev = arr[i];
+ }
+
+ return result.length >= size_y ? arr[result[0]] : false;
+ };
+
+
+ /**
+ * Get widgets overlapping with the player.
+ *
+ * @method get_widgets_overlapped
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.get_widgets_overlapped = function() {
+ var $w;
+ var $widgets = $([]);
+ var used = [];
+ var rows_from_bottom = this.cells_occupied_by_player.rows.slice(0);
+ rows_from_bottom.reverse();
+
+ $.each(this.cells_occupied_by_player.cols, $.proxy(function(i, col) {
+ $.each(rows_from_bottom, $.proxy(function(i, row) {
+ // if there is a widget in the player position
+ if (!this.gridmap[col]) { return true; } //next iteration
+ var $w = this.gridmap[col][row];
+ if (this.is_occupied(col, row) && !this.is_player($w) &&
+ $.inArray($w, used) === -1
+ ) {
+ $widgets = $widgets.add($w);
+ used.push($w);
+ }
+
+ }, this));
+ }, this));
+
+ return $widgets;
+ };
+
+
+ /**
+ * This callback is executed when the player begins to collide with a column.
+ *
+ * @method on_start_overlapping_column
+ * @param {Number} col The collided column.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_start_overlapping_column = function(col) {
+ this.set_player(col, false);
+ };
+
+
+ /**
+ * A callback executed when the player begins to collide with a row.
+ *
+ * @method on_start_overlapping_row
+ * @param {Number} row The collided row.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_start_overlapping_row = function(row) {
+ this.set_player(false, row);
+ };
+
+
+ /**
+ * A callback executed when the the player ends to collide with a column.
+ *
+ * @method on_stop_overlapping_column
+ * @param {Number} col The collided row.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_stop_overlapping_column = function(col) {
+ this.set_player(col, false);
+
+ var self = this;
+ this.for_each_widget_below(col, this.cells_occupied_by_player.rows[0],
+ function(tcol, trow) {
+ self.move_widget_up(this, self.player_grid_data.size_y);
+ });
+ };
+
+
+ /**
+ * This callback is executed when the player ends to collide with a row.
+ *
+ * @method on_stop_overlapping_row
+ * @param {Number} row The collided row.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_stop_overlapping_row = function(row) {
+ this.set_player(false, row);
+
+ var self = this;
+ var cols = this.cells_occupied_by_player.cols;
+ for (var c = 0, cl = cols.length; c < cl; c++) {
+ this.for_each_widget_below(cols[c], row, function(tcol, trow) {
+ self.move_widget_up(this, self.player_grid_data.size_y);
+ });
+ }
+ };
+
+
+ /**
+ * Move a widget to a specific row. The cell or cells must be empty.
+ * If the widget has widgets below, all of these widgets will be moved also
+ * if they can.
+ *
+ * @method move_widget_to
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement of the
+ * widget is going to be moved.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.move_widget_to = function($widget, row) {
+ var self = this;
+ var widget_grid_data = $widget.coords().grid;
+ var diff = row - widget_grid_data.row;
+ var $next_widgets = this.widgets_below($widget);
+
+ var can_move_to_new_cell = this.can_move_to(
+ widget_grid_data, widget_grid_data.col, row, $widget);
+
+ if (can_move_to_new_cell === false) {
+ return false;
+ }
+
+ this.remove_from_gridmap(widget_grid_data);
+ widget_grid_data.row = row;
+ this.add_to_gridmap(widget_grid_data);
+ $widget.attr('data-row', row);
+ this.$changed = this.$changed.add($widget);
+
+
+ $next_widgets.each(function(i, widget) {
+ var $w = $(widget);
+ var wgd = $w.coords().grid;
+ var can_go_up = self.can_go_widget_up(wgd);
+ if (can_go_up && can_go_up !== wgd.row) {
+ self.move_widget_to($w, can_go_up);
+ }
+ });
+
+ return this;
+ };
+
+
+ /**
+ * Move up the specified widget and all below it.
+ *
+ * @method move_widget_up
+ * @param {HTMLElement} $widget The widget you want to move.
+ * @param {Number} [y_units] The number of cells that the widget has to move.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.move_widget_up = function($widget, y_units) {
+ var el_grid_data = $widget.coords().grid;
+ var actual_row = el_grid_data.row;
+ var moved = [];
+ var can_go_up = true;
+ y_units || (y_units = 1);
+
+ if (!this.can_go_up($widget)) { return false; } //break;
+
+ this.for_each_column_occupied(el_grid_data, function(col) {
+ // can_go_up
+ if ($.inArray($widget, moved) === -1) {
+ var widget_grid_data = $widget.coords().grid;
+ var next_row = actual_row - y_units;
+ next_row = this.can_go_up_to_row(
+ widget_grid_data, col, next_row);
+
+ if (!next_row) {
+ return true;
+ }
+
+ var $next_widgets = this.widgets_below($widget);
+
+ this.remove_from_gridmap(widget_grid_data);
+ widget_grid_data.row = next_row;
+ this.add_to_gridmap(widget_grid_data);
+ $widget.attr('data-row', widget_grid_data.row);
+ this.$changed = this.$changed.add($widget);
+
+ moved.push($widget);
+
+ $next_widgets.each($.proxy(function(i, widget) {
+ this.move_widget_up($(widget), y_units);
+ }, this));
+ }
+ });
+
+ };
+
+
+ /**
+ * Move down the specified widget and all below it.
+ *
+ * @method move_widget_down
+ * @param {jQuery} $widget The jQuery object representing the widget
+ * you want to move.
+ * @param {Number} y_units The number of cells that the widget has to move.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.move_widget_down = function($widget, y_units) {
+ var el_grid_data, actual_row, moved, y_diff;
+
+ if (y_units <= 0) { return false; }
+
+ el_grid_data = $widget.coords().grid;
+ actual_row = el_grid_data.row;
+ moved = [];
+ y_diff = y_units;
+
+ if (!$widget) { return false; }
+
+ if ($.inArray($widget, moved) === -1) {
+
+ var widget_grid_data = $widget.coords().grid;
+ var next_row = actual_row + y_units;
+ var $next_widgets = this.widgets_below($widget);
+
+ this.remove_from_gridmap(widget_grid_data);
+
+ $next_widgets.each($.proxy(function(i, widget) {
+ var $w = $(widget);
+ var wd = $w.coords().grid;
+ var tmp_y = this.displacement_diff(
+ wd, widget_grid_data, y_diff);
+
+ if (tmp_y > 0) {
+ this.move_widget_down($w, tmp_y);
+ }
+ }, this));
+
+ widget_grid_data.row = next_row;
+ this.update_widget_position(widget_grid_data, $widget);
+ $widget.attr('data-row', widget_grid_data.row);
+ this.$changed = this.$changed.add($widget);
+
+ moved.push($widget);
+ }
+ };
+
+
+ /**
+ * Check if the widget can move to the specified row, else returns the
+ * upper row possible.
+ *
+ * @method can_go_up_to_row
+ * @param {Number} widget_grid_data The current grid coords object of the
+ * widget.
+ * @param {Number} col The target column.
+ * @param {Number} row The target row.
+ * @return {Boolean|Number} Returns the row number if the widget can move
+ * to the target position, else returns false.
+ */
+ fn.can_go_up_to_row = function(widget_grid_data, col, row) {
+ var ga = this.gridmap;
+ var result = true;
+ var urc = []; // upper_rows_in_columns
+ var actual_row = widget_grid_data.row;
+ var r;
+
+ /* generate an array with columns as index and array with
+ * upper rows empty in the column */
+ this.for_each_column_occupied(widget_grid_data, function(tcol) {
+ var grid_col = ga[tcol];
+ urc[tcol] = [];
+
+ r = actual_row;
+ while (r--) {
+ if (this.is_empty(tcol, r) &&
+ !this.is_placeholder_in(tcol, r)
+ ) {
+ urc[tcol].push(r);
+ } else {
+ break;
+ }
+ }
+
+ if (!urc[tcol].length) {
+ result = false;
+ return true;
+ }
+
+ });
+
+ if (!result) { return false; }
+
+ /* get common rows starting from upper position in all the columns
+ * that widget occupies */
+ r = row;
+ for (r = 1; r < actual_row; r++) {
+ var common = true;
+
+ for (var uc = 0, ucl = urc.length; uc < ucl; uc++) {
+ if (urc[uc] && $.inArray(r, urc[uc]) === -1) {
+ common = false;
+ }
+ }
+
+ if (common === true) {
+ result = r;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+
+ fn.displacement_diff = function(widget_grid_data, parent_bgd, y_units) {
+ var actual_row = widget_grid_data.row;
+ var diffs = [];
+ var parent_max_y = parent_bgd.row + parent_bgd.size_y;
+
+ this.for_each_column_occupied(widget_grid_data, function(col) {
+ var temp_y_units = 0;
+
+ for (var r = parent_max_y; r < actual_row; r++) {
+ if (this.is_empty(col, r)) {
+ temp_y_units = temp_y_units + 1;
+ }
+ }
+
+ diffs.push(temp_y_units);
+ });
+
+ var max_diff = Math.max.apply(Math, diffs);
+ y_units = (y_units - max_diff);
+
+ return y_units > 0 ? y_units : 0;
+ };
+
+
+ /**
+ * Get widgets below a widget.
+ *
+ * @method widgets_below
+ * @param {HTMLElement} $el The jQuery wrapped HTMLElement.
+ * @return {jQuery} A jQuery collection of HTMLElements.
+ */
+ fn.widgets_below = function($el) {
+ var el_grid_data = $.isPlainObject($el) ? $el : $el.coords().grid;
+ var self = this;
+ var ga = this.gridmap;
+ var next_row = el_grid_data.row + el_grid_data.size_y - 1;
+ var $nexts = $([]);
+
+ this.for_each_column_occupied(el_grid_data, function(col) {
+ self.for_each_widget_below(col, next_row, function(tcol, trow) {
+ if (!self.is_player(this) && $.inArray(this, $nexts) === -1) {
+ $nexts = $nexts.add(this);
+ return true; // break
+ }
+ });
+ });
+
+ return Gridster.sort_by_row_asc($nexts);
+ };
+
+
+ /**
+ * Update the array of mapped positions with the new player position.
+ *
+ * @method set_cells_player_occupies
+ * @param {Number} col The new player col.
+ * @param {Number} col The new player row.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.set_cells_player_occupies = function(col, row) {
+ this.remove_from_gridmap(this.placeholder_grid_data);
+ this.placeholder_grid_data.col = col;
+ this.placeholder_grid_data.row = row;
+ this.add_to_gridmap(this.placeholder_grid_data, this.$player);
+ return this;
+ };
+
+
+ /**
+ * Remove from the array of mapped positions the reference to the player.
+ *
+ * @method empty_cells_player_occupies
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.empty_cells_player_occupies = function() {
+ this.remove_from_gridmap(this.placeholder_grid_data);
+ return this;
+ };
+
+
+ fn.can_go_up = function($el) {
+ var el_grid_data = $el.coords().grid;
+ var initial_row = el_grid_data.row;
+ var prev_row = initial_row - 1;
+ var ga = this.gridmap;
+ var upper_rows_by_column = [];
+
+ var result = true;
+ if (initial_row === 1) { return false; }
+
+ this.for_each_column_occupied(el_grid_data, function(col) {
+ var $w = this.is_widget(col, prev_row);
+
+ if (this.is_occupied(col, prev_row) ||
+ this.is_player(col, prev_row) ||
+ this.is_placeholder_in(col, prev_row) ||
+ this.is_player_in(col, prev_row)
+ ) {
+ result = false;
+ return true; //break
+ }
+ });
+
+ return result;
+ };
+
+
+ /**
+ * Check if it's possible to move a widget to a specific col/row. It takes
+ * into account the dimensions (`size_y` and `size_x` attrs. of the grid
+ * coords object) the widget occupies.
+ *
+ * @method can_move_to
+ * @param {Object} widget_grid_data The grid coords object that represents
+ * the widget.
+ * @param {Object} col The col to check.
+ * @param {Object} row The row to check.
+ * @param {Number} [max_row] The max row allowed.
+ * @return {Boolean} Returns true if all cells are empty, else return false.
+ */
+ fn.can_move_to = function(widget_grid_data, col, row, max_row) {
+ var ga = this.gridmap;
+ var $w = widget_grid_data.el;
+ var future_wd = {
+ size_y: widget_grid_data.size_y,
+ size_x: widget_grid_data.size_x,
+ col: col,
+ row: row
+ };
+ var result = true;
+
+ //Prevents widgets go out of the grid
+ var right_col = col + widget_grid_data.size_x - 1;
+ if (right_col > this.cols) {
+ return false;
+ }
+
+ if (max_row && max_row < row + widget_grid_data.size_y - 1) {
+ return false;
+ }
+
+ this.for_each_cell_occupied(future_wd, function(tcol, trow) {
+ var $tw = this.is_widget(tcol, trow);
+ if ($tw && (!widget_grid_data.el || $tw.is($w))) {
+ result = false;
+ }
+ });
+
+ return result;
+ };
+
+
+ /**
+ * Given the leftmost column returns all columns that are overlapping
+ * with the player.
+ *
+ * @method get_targeted_columns
+ * @param {Number} [from_col] The leftmost column.
+ * @return {Array} Returns an array with column numbers.
+ */
+ fn.get_targeted_columns = function(from_col) {
+ var max = (from_col || this.player_grid_data.col) +
+ (this.player_grid_data.size_x - 1);
+ var cols = [];
+ for (var col = from_col; col <= max; col++) {
+ cols.push(col);
+ }
+ return cols;
+ };
+
+
+ /**
+ * Given the upper row returns all rows that are overlapping with the player.
+ *
+ * @method get_targeted_rows
+ * @param {Number} [from_row] The upper row.
+ * @return {Array} Returns an array with row numbers.
+ */
+ fn.get_targeted_rows = function(from_row) {
+ var max = (from_row || this.player_grid_data.row) +
+ (this.player_grid_data.size_y - 1);
+ var rows = [];
+ for (var row = from_row; row <= max; row++) {
+ rows.push(row);
+ }
+ return rows;
+ };
+
+ /**
+ * Get all columns and rows that a widget occupies.
+ *
+ * @method get_cells_occupied
+ * @param {Object} el_grid_data The grid coords object of the widget.
+ * @return {Object} Returns an object like `{ cols: [], rows: []}`.
+ */
+ fn.get_cells_occupied = function(el_grid_data) {
+ var cells = { cols: [], rows: []};
+ var i;
+ if (arguments[1] instanceof $) {
+ el_grid_data = arguments[1].coords().grid;
+ }
+
+ for (i = 0; i < el_grid_data.size_x; i++) {
+ var col = el_grid_data.col + i;
+ cells.cols.push(col);
+ }
+
+ for (i = 0; i < el_grid_data.size_y; i++) {
+ var row = el_grid_data.row + i;
+ cells.rows.push(row);
+ }
+
+ return cells;
+ };
+
+
+ /**
+ * Iterate over the cells occupied by a widget executing a function for
+ * each one.
+ *
+ * @method for_each_cell_occupied
+ * @param {Object} el_grid_data The grid coords object that represents the
+ * widget.
+ * @param {Function} callback The function to execute on each column
+ * iteration. Column and row are passed as arguments.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_cell_occupied = function(grid_data, callback) {
+ this.for_each_column_occupied(grid_data, function(col) {
+ this.for_each_row_occupied(grid_data, function(row) {
+ callback.call(this, col, row);
+ });
+ });
+ return this;
+ };
+
+
+ /**
+ * Iterate over the columns occupied by a widget executing a function for
+ * each one.
+ *
+ * @method for_each_column_occupied
+ * @param {Object} el_grid_data The grid coords object that represents
+ * the widget.
+ * @param {Function} callback The function to execute on each column
+ * iteration. The column number is passed as first argument.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_column_occupied = function(el_grid_data, callback) {
+ for (var i = 0; i < el_grid_data.size_x; i++) {
+ var col = el_grid_data.col + i;
+ callback.call(this, col, el_grid_data);
+ }
+ };
+
+
+ /**
+ * Iterate over the rows occupied by a widget executing a function for
+ * each one.
+ *
+ * @method for_each_row_occupied
+ * @param {Object} el_grid_data The grid coords object that represents
+ * the widget.
+ * @param {Function} callback The function to execute on each column
+ * iteration. The row number is passed as first argument.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_row_occupied = function(el_grid_data, callback) {
+ for (var i = 0; i < el_grid_data.size_y; i++) {
+ var row = el_grid_data.row + i;
+ callback.call(this, row, el_grid_data);
+ }
+ };
+
+
+
+ fn._traversing_widgets = function(type, direction, col, row, callback) {
+ var ga = this.gridmap;
+ if (!ga[col]) { return; }
+
+ var cr, max;
+ var action = type + '/' + direction;
+ if (arguments[2] instanceof $) {
+ var el_grid_data = arguments[2].coords().grid;
+ col = el_grid_data.col;
+ row = el_grid_data.row;
+ callback = arguments[3];
+ }
+ var matched = [];
+ var trow = row;
+
+
+ var methods = {
+ 'for_each/above': function() {
+ while (trow--) {
+ if (trow > 0 && this.is_widget(col, trow) &&
+ $.inArray(ga[col][trow], matched) === -1
+ ) {
+ cr = callback.call(ga[col][trow], col, trow);
+ matched.push(ga[col][trow]);
+ if (cr) { break; }
+ }
+ }
+ },
+ 'for_each/below': function() {
+ for (trow = row + 1, max = ga[col].length; trow < max; trow++) {
+ if (this.is_widget(col, trow) &&
+ $.inArray(ga[col][trow], matched) === -1
+ ) {
+ cr = callback.call(ga[col][trow], col, trow);
+ matched.push(ga[col][trow]);
+ if (cr) { break; }
+ }
+ }
+ }
+ };
+
+ if (methods[action]) {
+ methods[action].call(this);
+ }
+ };
+
+
+ /**
+ * Iterate over each widget above the column and row specified.
+ *
+ * @method for_each_widget_above
+ * @param {Number} col The column to start iterating.
+ * @param {Number} row The row to start iterating.
+ * @param {Function} callback The function to execute on each widget
+ * iteration. The value of `this` inside the function is the jQuery
+ * wrapped HTMLElement.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_widget_above = function(col, row, callback) {
+ this._traversing_widgets('for_each', 'above', col, row, callback);
+ return this;
+ };
+
+
+ /**
+ * Iterate over each widget below the column and row specified.
+ *
+ * @method for_each_widget_below
+ * @param {Number} col The column to start iterating.
+ * @param {Number} row The row to start iterating.
+ * @param {Function} callback The function to execute on each widget
+ * iteration. The value of `this` inside the function is the jQuery wrapped
+ * HTMLElement.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_widget_below = function(col, row, callback) {
+ this._traversing_widgets('for_each', 'below', col, row, callback);
+ return this;
+ };
+
+
+ /**
+ * Returns the highest occupied cell in the grid.
+ *
+ * @method get_highest_occupied_cell
+ * @return {Object} Returns an object with `col` and `row` numbers.
+ */
+ fn.get_highest_occupied_cell = function() {
+ var r;
+ var gm = this.gridmap;
+ var rl = gm[1].length;
+ var rows = [], cols = [];
+ var row_in_col = [];
+ for (var c = gm.length - 1; c >= 1; c--) {
+ for (r = rl - 1; r >= 1; r--) {
+ if (this.is_widget(c, r)) {
+ rows.push(r);
+ cols.push(c);
+ break;
+ }
+ }
+ }
+
+ return {
+ col: Math.max.apply(Math, cols),
+ row: Math.max.apply(Math, rows)
+ };
+ };
+
+
+ fn.get_widgets_from = function(col, row) {
+ var ga = this.gridmap;
+ var $widgets = $();
+
+ if (col) {
+ $widgets = $widgets.add(
+ this.$widgets.filter(function() {
+ var tcol = $(this).attr('data-col');
+ return (tcol === col || tcol > col);
+ })
+ );
+ }
+
+ if (row) {
+ $widgets = $widgets.add(
+ this.$widgets.filter(function() {
+ var trow = $(this).attr('data-row');
+ return (trow === row || trow > row);
+ })
+ );
+ }
+
+ return $widgets;
+ };
+
+
+ /**
+ * Set the current height of the parent grid.
+ *
+ * @method set_dom_grid_height
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.set_dom_grid_height = function(height) {
+ if (typeof height === 'undefined') {
+ var r = this.get_highest_occupied_cell().row;
+ height = r * this.min_widget_height;
+ }
+
+ this.container_height = height;
+ this.$el.css('height', this.container_height);
+ return this;
+ };
+
+ /**
+ * Set the current width of the parent grid.
+ *
+ * @method set_dom_grid_width
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.set_dom_grid_width = function(cols) {
+ if (typeof cols === 'undefined') {
+ cols = this.get_highest_occupied_cell().col;
+ }
+
+ var max_cols = (this.options.autogrow_cols ? this.options.max_cols :
+ this.cols);
+
+ cols = Math.min(max_cols, Math.max(cols, this.options.min_cols));
+ this.container_width = cols * this.min_widget_width;
+ this.$el.css('width', this.container_width);
+ return this;
+ };
+
+
+ /**
+ * It generates the neccessary styles to position the widgets.
+ *
+ * @method generate_stylesheet
+ * @param {Number} rows Number of columns.
+ * @param {Number} cols Number of rows.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.generate_stylesheet = function(opts) {
+ var styles = '';
+ var max_size_x = this.options.max_size_x || this.cols;
+ var max_rows = 0;
+ var max_cols = 0;
+ var i;
+ var rules;
+
+ opts || (opts = {});
+ opts.cols || (opts.cols = this.cols);
+ opts.rows || (opts.rows = this.rows);
+ opts.namespace || (opts.namespace = this.options.namespace);
+ opts.widget_base_dimensions ||
+ (opts.widget_base_dimensions = this.options.widget_base_dimensions);
+ opts.widget_margins ||
+ (opts.widget_margins = this.options.widget_margins);
+ opts.min_widget_width = (opts.widget_margins[0] * 2) +
+ opts.widget_base_dimensions[0];
+ opts.min_widget_height = (opts.widget_margins[1] * 2) +
+ opts.widget_base_dimensions[1];
+
+ // don't duplicate stylesheets for the same configuration
+ var serialized_opts = $.param(opts);
+ if ($.inArray(serialized_opts, Gridster.generated_stylesheets) >= 0) {
+ return false;
+ }
+
+ this.generated_stylesheets.push(serialized_opts);
+ Gridster.generated_stylesheets.push(serialized_opts);
+
+ /* generate CSS styles for cols */
+ for (i = opts.cols; i >= 0; i--) {
+ styles += (opts.namespace + ' [data-col="'+ (i + 1) + '"] { left:' +
+ ((i * opts.widget_base_dimensions[0]) +
+ (i * opts.widget_margins[0]) +
+ ((i + 1) * opts.widget_margins[0])) + 'px; }\n');
+ }
+
+ /* generate CSS styles for rows */
+ for (i = opts.rows; i >= 0; i--) {
+ styles += (opts.namespace + ' [data-row="' + (i + 1) + '"] { top:' +
+ ((i * opts.widget_base_dimensions[1]) +
+ (i * opts.widget_margins[1]) +
+ ((i + 1) * opts.widget_margins[1]) ) + 'px; }\n');
+ }
+
+ for (var y = 1; y <= opts.rows; y++) {
+ styles += (opts.namespace + ' [data-sizey="' + y + '"] { height:' +
+ (y * opts.widget_base_dimensions[1] +
+ (y - 1) * (opts.widget_margins[1] * 2)) + 'px; }\n');
+ }
+
+ for (var x = 1; x <= max_size_x; x++) {
+ styles += (opts.namespace + ' [data-sizex="' + x + '"] { width:' +
+ (x * opts.widget_base_dimensions[0] +
+ (x - 1) * (opts.widget_margins[0] * 2)) + 'px; }\n');
+ }
+
+ this.remove_style_tags();
+
+ return this.add_style_tag(styles);
+ };
+
+
+ /**
+ * Injects the given CSS as string to the head of the document.
+ *
+ * @method add_style_tag
+ * @param {String} css The styles to apply.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_style_tag = function(css) {
+ var d = document;
+ var tag = d.createElement('style');
+
+ d.getElementsByTagName('head')[0].appendChild(tag);
+ tag.setAttribute('type', 'text/css');
+
+ if (tag.styleSheet) {
+ tag.styleSheet.cssText = css;
+ } else {
+ tag.appendChild(document.createTextNode(css));
+ }
+
+ this.$style_tags = this.$style_tags.add(tag);
+
+ return this;
+ };
+
+
+ /**
+ * Remove the style tag with the associated id from the head of the document
+ *
+ * @method remove_style_tag
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.remove_style_tags = function() {
+ var all_styles = Gridster.generated_stylesheets;
+ var ins_styles = this.generated_stylesheets;
+
+ this.$style_tags.remove();
+
+ Gridster.generated_stylesheets = $.map(all_styles, function(s) {
+ if ($.inArray(s, ins_styles) === -1) { return s; }
+ });
+ };
+
+
+ /**
+ * Generates a faux grid to collide with it when a widget is dragged and
+ * detect row or column that we want to go.
+ *
+ * @method generate_faux_grid
+ * @param {Number} rows Number of columns.
+ * @param {Number} cols Number of rows.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.generate_faux_grid = function(rows, cols) {
+ this.faux_grid = [];
+ this.gridmap = [];
+ var col;
+ var row;
+ for (col = cols; col > 0; col--) {
+ this.gridmap[col] = [];
+ for (row = rows; row > 0; row--) {
+ this.add_faux_cell(row, col);
+ }
+ }
+ return this;
+ };
+
+
+ /**
+ * Add cell to the faux grid.
+ *
+ * @method add_faux_cell
+ * @param {Number} row The row for the new faux cell.
+ * @param {Number} col The col for the new faux cell.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_faux_cell = function(row, col) {
+ var coords = $({
+ left: this.baseX + ((col - 1) * this.min_widget_width),
+ top: this.baseY + (row -1) * this.min_widget_height,
+ width: this.min_widget_width,
+ height: this.min_widget_height,
+ col: col,
+ row: row,
+ original_col: col,
+ original_row: row
+ }).coords();
+
+ if (!$.isArray(this.gridmap[col])) {
+ this.gridmap[col] = [];
+ }
+
+ this.gridmap[col][row] = false;
+ this.faux_grid.push(coords);
+
+ return this;
+ };
+
+
+ /**
+ * Add rows to the faux grid.
+ *
+ * @method add_faux_rows
+ * @param {Number} rows The number of rows you want to add to the faux grid.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_faux_rows = function(rows) {
+ var actual_rows = this.rows;
+ var max_rows = actual_rows + (rows || 1);
+
+ for (var r = max_rows; r > actual_rows; r--) {
+ for (var c = this.cols; c >= 1; c--) {
+ this.add_faux_cell(r, c);
+ }
+ }
+
+ this.rows = max_rows;
+
+ if (this.options.autogenerate_stylesheet) {
+ this.generate_stylesheet();
+ }
+
+ return this;
+ };
+
+ /**
+ * Add cols to the faux grid.
+ *
+ * @method add_faux_cols
+ * @param {Number} cols The number of cols you want to add to the faux grid.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_faux_cols = function(cols) {
+ var actual_cols = this.cols;
+ var max_cols = actual_cols + (cols || 1);
+ max_cols = Math.min(max_cols, this.options.max_cols);
+
+ for (var c = actual_cols + 1; c <= max_cols; c++) {
+ for (var r = this.rows; r >= 1; r--) {
+ this.add_faux_cell(r, c);
+ }
+ }
+
+ this.cols = max_cols;
+
+ if (this.options.autogenerate_stylesheet) {
+ this.generate_stylesheet();
+ }
+
+ return this;
+ };
+
+
+ /**
+ * Recalculates the offsets for the faux grid. You need to use it when
+ * the browser is resized.
+ *
+ * @method recalculate_faux_grid
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.recalculate_faux_grid = function() {
+ var aw = this.$wrapper.width();
+ this.baseX = ($(window).width() - aw) / 2;
+ this.baseY = this.$wrapper.offset().top;
+
+ $.each(this.faux_grid, $.proxy(function(i, coords) {
+ this.faux_grid[i] = coords.update({
+ left: this.baseX + (coords.data.col -1) * this.min_widget_width,
+ top: this.baseY + (coords.data.row -1) * this.min_widget_height
+ });
+ }, this));
+
+ return this;
+ };
+
+
+ /**
+ * Get all widgets in the DOM and register them.
+ *
+ * @method get_widgets_from_DOM
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.get_widgets_from_DOM = function() {
+ var widgets_coords = this.$widgets.map($.proxy(function(i, widget) {
+ var $w = $(widget);
+ return this.dom_to_coords($w);
+ }, this));
+
+ widgets_coords = Gridster.sort_by_row_and_col_asc(widgets_coords);
+
+ var changes = $(widgets_coords).map($.proxy(function(i, wgd) {
+ return this.register_widget(wgd) || null;
+ }, this));
+
+ if (changes.length) {
+ this.$el.trigger('gridster:positionschanged');
+ }
+
+ return this;
+ };
+
+
+ /**
+ * Calculate columns and rows to be set based on the configuration
+ * parameters, grid dimensions, etc ...
+ *
+ * @method generate_grid_and_stylesheet
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.generate_grid_and_stylesheet = function() {
+ var aw = this.$wrapper.width();
+ var max_cols = this.options.max_cols;
+
+ var cols = Math.floor(aw / this.min_widget_width) +
+ this.options.extra_cols;
+
+ var actual_cols = this.$widgets.map(function() {
+ return $(this).attr('data-col');
+ }).get();
+
+ //needed to pass tests with phantomjs
+ actual_cols.length || (actual_cols = [0]);
+
+ var min_cols = Math.max.apply(Math, actual_cols);
+
+ this.cols = Math.max(min_cols, cols, this.options.min_cols);
+
+ if (max_cols !== Infinity && max_cols >= min_cols && max_cols < this.cols) {
+ this.cols = max_cols;
+ }
+
+ // get all rows that could be occupied by the current widgets
+ var max_rows = this.options.extra_rows;
+ this.$widgets.each(function(i, w) {
+ max_rows += (+$(w).attr('data-sizey'));
+ });
+
+ this.rows = Math.max(max_rows, this.options.min_rows);
+
+ this.baseX = ($(window).width() - aw) / 2;
+ this.baseY = this.$wrapper.offset().top;
+
+ if (this.options.autogenerate_stylesheet) {
+ this.generate_stylesheet();
+ }
+
+ return this.generate_faux_grid(this.rows, this.cols);
+ };
+
+ /**
+ * Destroy this gridster by removing any sign of its presence, making it easy to avoid memory leaks
+ *
+ * @method destroy
+ * @param {Boolean} remove If true, remove gridster from DOM.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.destroy = function(remove) {
+ this.$el.removeData('gridster');
+
+ // remove bound callback on window resize
+ $(window).unbind('.gridster');
+
+ if (this.drag_api) {
+ this.drag_api.destroy();
+ }
+
+ this.remove_style_tags();
+
+ remove && this.$el.remove();
+
+ return this;
+ };
+
+
+ //jQuery adapter
+ $.fn.gridster = function(options) {
+ return this.each(function() {
+ if (! $(this).data('gridster')) {
+ $(this).data('gridster', new Gridster( this, options ));
+ }
+ });
+ };
+
+ return Gridster;
+
+}));
diff --git a/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.min.css b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.min.css
new file mode 100644
index 000000000..9d70cef01
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.min.css
@@ -0,0 +1,2 @@
+/*! gridster.js - v0.5.3 - 2014-07-04 - * http://gridster.net/ - Copyright (c) 2014 ducksboard; Licensed MIT */
+.gridster{position:relative}.gridster>*{margin:0 auto;-webkit-transition:height .4s,width .4s;-moz-transition:height .4s,width .4s;-o-transition:height .4s,width .4s;-ms-transition:height .4s,width .4s;transition:height .4s,width .4s}.gridster .gs-w{z-index:2;position:absolute}.ready .gs-w:not(.preview-holder){-webkit-transition:opacity .3s,left .3s,top .3s;-moz-transition:opacity .3s,left .3s,top .3s;-o-transition:opacity .3s,left .3s,top .3s;transition:opacity .3s,left .3s,top .3s}.ready .gs-w:not(.preview-holder),.ready .resize-preview-holder{-webkit-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;-moz-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;-o-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;transition:opacity .3s,left .3s,top .3s,width .3s,height .3s}.gridster .preview-holder{z-index:1;position:absolute;background-color:#fff;border-color:#fff;opacity:.3}.gridster .player-revert{z-index:10!important;-webkit-transition:left .3s,top .3s!important;-moz-transition:left .3s,top .3s!important;-o-transition:left .3s,top .3s!important;transition:left .3s,top .3s!important}.gridster .dragging,.gridster .resizing{z-index:10!important;-webkit-transition:all 0s!important;-moz-transition:all 0s!important;-o-transition:all 0s!important;transition:all 0s!important}.gs-resize-handle{position:absolute;z-index:1}.gs-resize-handle-both{width:20px;height:20px;bottom:-8px;right:-8px;background-image:url(data:image/svg+xml;base64,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);background-position:top left;background-repeat:no-repeat;cursor:se-resize;z-index:20}.gs-resize-handle-x{top:0;bottom:13px;right:-5px;width:10px;cursor:e-resize}.gs-resize-handle-y{left:0;right:13px;bottom:-5px;height:10px;cursor:s-resize}.gs-w:hover .gs-resize-handle,.resizing .gs-resize-handle{opacity:1}.gs-resize-handle,.gs-w.dragging .gs-resize-handle{opacity:0}.gs-resize-disabled .gs-resize-handle{display:none!important}[data-max-sizex="1"] .gs-resize-handle-x,[data-max-sizey="1"] .gs-resize-handle-y,[data-max-sizey="1"][data-max-sizex="1"] .gs-resize-handle{display:none!important}
\ No newline at end of file
diff --git a/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.min.js b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.min.js
new file mode 100644
index 000000000..662de94c1
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.min.js
@@ -0,0 +1,2 @@
+/*! gridster.js - v0.5.3 - 2014-07-04 - * http://gridster.net/ - Copyright (c) 2014 ducksboard; Licensed MIT */ (function(t,i){"function"==typeof define&&define.amd?define("gridster-coords",["jquery"],i):t.GridsterCoords=i(t.$||t.jQuery)})(this,function(t){function i(i){return i[0]&&t.isPlainObject(i[0])?this.data=i[0]:this.el=i,this.isCoords=!0,this.coords={},this.init(),this}var e=i.prototype;return e.init=function(){this.set(),this.original_coords=this.get()},e.set=function(t,i){var e=this.el;if(e&&!t&&(this.data=e.offset(),this.data.width=e.width(),this.data.height=e.height()),e&&t&&!i){var s=e.offset();this.data.top=s.top,this.data.left=s.left}var r=this.data;return r.left===void 0&&(r.left=r.x1),r.top===void 0&&(r.top=r.y1),this.coords.x1=r.left,this.coords.y1=r.top,this.coords.x2=r.left+r.width,this.coords.y2=r.top+r.height,this.coords.cx=r.left+r.width/2,this.coords.cy=r.top+r.height/2,this.coords.width=r.width,this.coords.height=r.height,this.coords.el=e||!1,this},e.update=function(i){if(!i&&!this.el)return this;if(i){var e=t.extend({},this.data,i);return this.data=e,this.set(!0,!0)}return this.set(!0),this},e.get=function(){return this.coords},e.destroy=function(){this.el.removeData("coords"),delete this.el},t.fn.coords=function(){if(this.data("coords"))return this.data("coords");var t=new i(this,arguments[0]);return this.data("coords",t),t},i}),function(t,i){"function"==typeof define&&define.amd?define("gridster-collision",["jquery","gridster-coords"],i):t.GridsterCollision=i(t.$||t.jQuery,t.GridsterCoords)}(this,function(t){function i(i,s,r){this.options=t.extend(e,r),this.$element=i,this.last_colliders=[],this.last_colliders_coords=[],this.set_colliders(s),this.init()}var e={colliders_context:document.body,overlapping_region:"C"};i.defaults=e;var s=i.prototype;return s.init=function(){this.find_collisions()},s.overlaps=function(t,i){var e=!1,s=!1;return(i.x1>=t.x1&&i.x1<=t.x2||i.x2>=t.x1&&i.x2<=t.x2||t.x1>=i.x1&&t.x2<=i.x2)&&(e=!0),(i.y1>=t.y1&&i.y1<=t.y2||i.y2>=t.y1&&i.y2<=t.y2||t.y1>=i.y1&&t.y2<=i.y2)&&(s=!0),e&&s},s.detect_overlapping_region=function(t,i){var e="",s="";return t.y1>i.cy&&t.y1i.y1&&t.y2i.cx&&t.x1i.x1&&t.x2o;o++)-1===t.inArray(r[o],i)&&e.call(this,r[o]);for(var n=0,h=i.length;h>n;n++)-1===t.inArray(i[n],r)&&s.call(this,i[n])},s.find_collisions=function(i){for(var e=this,s=this.options.overlapping_region,r=[],o=[],a=this.colliders||this.$colliders,n=a.length,h=e.$element.coords().update(i||!1).get();n--;){var _=e.$colliders?t(a[n]):a[n],d=_.isCoords?_:_.coords(),l=d.get(),c=e.overlaps(h,l);if(c){var g=e.detect_overlapping_region(h,l);if(g===s||"all"===s){var p=e.calculate_overlapped_area_coords(h,l),u=e.calculate_overlapped_area(p),f={area:u,area_coords:p,region:g,coords:l,player_coords:h,el:_};e.options.on_overlap&&e.options.on_overlap.call(this,f),r.push(d),o.push(f)}}}return(e.options.on_overlap_stop||e.options.on_overlap_start)&&this.manage_colliders_start_stop(r,e.options.on_overlap_start,e.options.on_overlap_stop),this.last_colliders_coords=r,o},s.get_closest_colliders=function(t){var i=this.find_collisions(t);return i.sort(function(t,i){return"C"===t.region&&"C"===i.region?t.coords.y1this.player_max_left?o=this.player_max_left:this.player_min_left>o&&(o=this.player_min_left)),{position:{left:o,top:a},pointer:{left:e.left,top:e.top,diff_left:s+(t(window).scrollLeft()-this.win_offset_x),diff_top:r+(t(window).scrollTop()-this.win_offset_y)}}},h.get_drag_data=function(t){var i=this.get_offset(t);return i.$player=this.$player,i.$helper=this.helper?this.$helper:this.$player,i},h.set_limits=function(t){return t||(t=this.$container.width()),this.player_max_left=t-this.player_width+-this.options.offset_left,this.options.container_width=t,this},h.scroll_in=function(i,e){var o,a=r[i],h=50,_=30,d="x"===i,l=d?this.window_width:this.window_height,c=d?t(document).width():t(document).height(),g=d?this.$player.width():this.$player.height(),p=s["scroll"+n(a)](),u=p,f=u+l,w=f-h,m=u+h,y=u+e.pointer[a],v=c-l+g;return y>=w&&(o=p+_,v>o&&(s["scroll"+n(a)](o),this["scroll_offset_"+i]+=_)),m>=y&&(o=p-_,o>0&&(s["scroll"+n(a)](o),this["scroll_offset_"+i]-=_)),this},h.manage_scroll=function(t){this.scroll_in("x",t),this.scroll_in("y",t)},h.calculate_dimensions=function(){this.window_height=s.height(),this.window_width=s.width()},h.drag_handler=function(i){if(i.target.nodeName,!this.disabled&&(1===i.which||o)&&!this.ignore_drag(i)){var e=this,s=!0;return this.$player=t(i.currentTarget),this.el_init_pos=this.get_actual_pos(this.$player),this.mouse_init_pos=this.get_mouse_pos(i),this.offsetY=this.mouse_init_pos.top-this.el_init_pos.top,this.$document.on(a.move,function(t){var i=e.get_mouse_pos(t),r=Math.abs(i.left-e.mouse_init_pos.left),o=Math.abs(i.top-e.mouse_init_pos.top);return r>e.options.distance||o>e.options.distance?s?(s=!1,e.on_dragstart.call(e,t),!1):(e.is_dragging===!0&&e.on_dragmove.call(e,t),!1):!1}),o?void 0:!1}},h.on_dragstart=function(i){if(i.preventDefault(),this.is_dragging)return this;this.drag_start=this.is_dragging=!0;var e=this.$container.offset();return this.baseX=Math.round(e.left),this.baseY=Math.round(e.top),this.initial_container_width=this.options.container_width||this.$container.width(),"clone"===this.options.helper?(this.$helper=this.$player.clone().appendTo(this.$container).addClass("helper"),this.helper=!0):this.helper=!1,this.win_offset_y=t(window).scrollTop(),this.win_offset_x=t(window).scrollLeft(),this.scroll_offset_y=0,this.scroll_offset_x=0,this.el_init_offset=this.$player.offset(),this.player_width=this.$player.width(),this.player_height=this.$player.height(),this.set_limits(this.options.container_width),this.options.start&&this.options.start.call(this.$player,i,this.get_drag_data(i)),!1},h.on_dragmove=function(t){var i=this.get_drag_data(t);this.options.autoscroll&&this.manage_scroll(i),this.options.move_element&&(this.helper?this.$helper:this.$player).css({position:"absolute",left:i.position.left,top:i.position.top});var e=this.last_position||i.position;return i.prev_position=e,this.options.drag&&this.options.drag.call(this.$player,t,i),this.last_position=i.position,!1},h.on_dragstop=function(t){var i=this.get_drag_data(t);return this.drag_start=!1,this.options.stop&&this.options.stop.call(this.$player,t,i),this.helper&&this.options.remove_helper&&this.$helper.remove(),!1},h.on_select_start=function(t){return this.disabled||this.ignore_drag(t)?void 0:!1},h.enable=function(){this.disabled=!1},h.disable=function(){this.disabled=!0},h.destroy=function(){this.disable(),this.$container.off(".gridster-draggable"),this.$document.off(".gridster-draggable"),t(window).off(".gridster-draggable"),t.removeData(this.$container,"drag")},h.ignore_drag=function(i){return this.options.handle?!t(i.target).is(this.options.handle):t.isFunction(this.options.ignore_dragging)?this.options.ignore_dragging(i):t(i.target).is(this.options.ignore_dragging.join(", "))},t.fn.drag=function(t){return new i(this,t)},i}),function(t,i){"function"==typeof define&&define.amd?define(["jquery","gridster-draggable","gridster-collision"],i):t.Gridster=i(t.$||t.jQuery,t.GridsterDraggable,t.GridsterCollision)}(this,function(t,i){function e(i,e){this.options=t.extend(!0,{},s,e),this.$el=t(i),this.$wrapper=this.$el.parent(),this.$widgets=this.$el.children(this.options.widget_selector).addClass("gs-w"),this.widgets=[],this.$changed=t([]),this.wrapper_width=this.$wrapper.width(),this.min_widget_width=2*this.options.widget_margins[0]+this.options.widget_base_dimensions[0],this.min_widget_height=2*this.options.widget_margins[1]+this.options.widget_base_dimensions[1],this.generated_stylesheets=[],this.$style_tags=t([]),this.options.auto_init&&this.init()}var s={namespace:"",widget_selector:"li",widget_margins:[10,10],widget_base_dimensions:[400,225],extra_rows:0,extra_cols:0,min_cols:1,max_cols:1/0,min_rows:15,max_size_x:!1,autogrow_cols:!1,autogenerate_stylesheet:!0,avoid_overlapped_widgets:!0,auto_init:!0,serialize_params:function(t,i){return{col:i.col,row:i.row,size_x:i.size_x,size_y:i.size_y}},collision:{},draggable:{items:".gs-w",distance:4,ignore_dragging:i.defaults.ignore_dragging.slice(0)},resize:{enabled:!1,axes:["both"],handle_append_to:"",handle_class:"gs-resize-handle",max_size:[1/0,1/0],min_size:[1,1]}};e.defaults=s,e.generated_stylesheets=[],e.sort_by_row_asc=function(i){return i=i.sort(function(i,e){return i.row||(i=t(i).coords().grid,e=t(e).coords().grid),i.row>e.row?1:-1})},e.sort_by_row_and_col_asc=function(t){return t=t.sort(function(t,i){return t.row>i.row||t.row===i.row&&t.col>i.col?1:-1})},e.sort_by_col_asc=function(t){return t=t.sort(function(t,i){return t.col>i.col?1:-1})},e.sort_by_row_desc=function(t){return t=t.sort(function(t,i){return t.row+t.size_yn&&this.add_faux_rows(Math.max(e-n,0));var d=o+i-1;d>this.cols&&this.add_faux_cols(d-this.cols);var l={col:_,row:r.row,size_x:i,size_y:e};return this.mutate_widget_in_gridmap(t,r,l),this.set_dom_grid_height(),this.set_dom_grid_width(),s&&s.call(this,l.size_x,l.size_y),t},r.mutate_widget_in_gridmap=function(i,e,s){e.size_x;var r=e.size_y,o=this.get_cells_occupied(e),a=this.get_cells_occupied(s),n=[];t.each(o.cols,function(i,e){-1===t.inArray(e,a.cols)&&n.push(e)});var h=[];t.each(a.cols,function(i,e){-1===t.inArray(e,o.cols)&&h.push(e)});var _=[];t.each(o.rows,function(i,e){-1===t.inArray(e,a.rows)&&_.push(e)});var d=[];if(t.each(a.rows,function(i,e){-1===t.inArray(e,o.rows)&&d.push(e)}),this.remove_from_gridmap(e),h.length){var l=[s.col,s.row,s.size_x,Math.min(r,s.size_y),i];this.empty_cells.apply(this,l)}if(d.length){var c=[s.col,s.row,s.size_x,s.size_y,i];this.empty_cells.apply(this,c)}if(e.col=s.col,e.row=s.row,e.size_x=s.size_x,e.size_y=s.size_y,this.add_to_gridmap(s,i),i.removeClass("player-revert"),i.data("coords").update({width:s.size_x*this.options.widget_base_dimensions[0]+2*(s.size_x-1)*this.options.widget_margins[0],height:s.size_y*this.options.widget_base_dimensions[1]+2*(s.size_y-1)*this.options.widget_margins[1]}),i.attr({"data-col":s.col,"data-row":s.row,"data-sizex":s.size_x,"data-sizey":s.size_y}),n.length){var g=[n[0],s.row,n.length,Math.min(r,s.size_y),i];this.remove_empty_cells.apply(this,g)}if(_.length){var p=[s.col,s.row,s.size_x,s.size_y,i];this.remove_empty_cells.apply(this,p)}return this.move_widget_up(i),this},r.empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e-r,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,s){var o=t(s).coords().grid;if(e+r-1>=o.row){var a=e+r-o.row;this.move_widget_down(t(s),a)}},this)),this.set_dom_grid_height(),this},r.remove_empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,e){this.move_widget_up(t(e),r)},this)),this.set_dom_grid_height(),this},r.next_position=function(t,i){t||(t=1),i||(i=1);for(var s,r=this.gridmap,o=r.length,a=[],n=1;o>n;n++){s=r[n].length;for(var h=1;s>=h;h++){var _=this.can_move_to({size_x:t,size_y:i},n,h);_&&a.push({col:n,row:h,size_y:i,size_x:t})}}return a.length?e.sort_by_row_and_col_asc(a)[0]:!1},r.remove_widget=function(i,e,s){var r=i instanceof t?i:t(i),o=r.coords().grid;t.isFunction(e)&&(s=e,e=!1),this.cells_occupied_by_placeholder={},this.$widgets=this.$widgets.not(r);var a=this.widgets_below(r);return this.remove_from_gridmap(o),r.fadeOut(t.proxy(function(){r.remove(),e||a.each(t.proxy(function(i,e){this.move_widget_up(t(e),o.size_y)},this)),this.set_dom_grid_height(),s&&s.call(this,i)},this)),this},r.remove_all_widgets=function(i){return this.$widgets.each(t.proxy(function(t,e){this.remove_widget(e,!0,i)},this)),this},r.serialize=function(i){return i||(i=this.$widgets),i.map(t.proxy(function(i,e){var s=t(e);return this.options.serialize_params(s,s.coords().grid)},this))},r.serialize_changed=function(){return this.serialize(this.$changed)},r.dom_to_coords=function(t){return{col:parseInt(t.attr("data-col"),10),row:parseInt(t.attr("data-row"),10),size_x:parseInt(t.attr("data-sizex"),10)||1,size_y:parseInt(t.attr("data-sizey"),10)||1,max_size_x:parseInt(t.attr("data-max-sizex"),10)||!1,max_size_y:parseInt(t.attr("data-max-sizey"),10)||!1,min_size_x:parseInt(t.attr("data-min-sizex"),10)||!1,min_size_y:parseInt(t.attr("data-min-sizey"),10)||!1,el:t}},r.register_widget=function(i){var e=i instanceof jQuery,s=e?this.dom_to_coords(i):i;e||(i=s.el);var r=this.can_go_widget_up(s);return r&&(s.row=r,i.attr("data-row",r),this.$el.trigger("gridster:positionchanged",[s])),this.options.avoid_overlapped_widgets&&!this.can_move_to({size_x:s.size_x,size_y:s.size_y},s.col,s.row)&&(t.extend(s,this.next_position(s.size_x,s.size_y)),i.attr({"data-col":s.col,"data-row":s.row,"data-sizex":s.size_x,"data-sizey":s.size_y})),i.data("coords",i.coords()),i.data("coords").grid=s,this.add_to_gridmap(s,i),this.options.resize.enabled&&this.add_resize_handle(i),!!r},r.update_widget_position=function(t,i){return this.for_each_cell_occupied(t,function(t,e){return this.gridmap[t]?(this.gridmap[t][e]=i,void 0):this}),this},r.remove_from_gridmap=function(t){return this.update_widget_position(t,!1)},r.add_to_gridmap=function(i,e){if(this.update_widget_position(i,e||i.el),i.el){var s=this.widgets_below(i.el);s.each(t.proxy(function(i,e){this.move_widget_up(t(e))},this))}},r.draggable=function(){var i=this,e=t.extend(!0,{},this.options.draggable,{offset_left:this.options.widget_margins[0],offset_top:this.options.widget_margins[1],container_width:this.cols*this.min_widget_width,limit:!0,start:function(e,s){i.$widgets.filter(".player-revert").removeClass("player-revert"),i.$player=t(this),i.$helper=t(s.$helper),i.helper=!i.$helper.is(i.$player),i.on_start_drag.call(i,e,s),i.$el.trigger("gridster:dragstart")},stop:function(t,e){i.on_stop_drag.call(i,t,e),i.$el.trigger("gridster:dragstop")},drag:throttle(function(t,e){i.on_drag.call(i,t,e),i.$el.trigger("gridster:drag")},60)});return this.drag_api=this.$el.drag(e),this},r.resizable=function(){return this.resize_api=this.$el.drag({items:"."+this.options.resize.handle_class,offset_left:this.options.widget_margins[0],container_width:this.container_width,move_element:!1,resize:!0,limit:this.options.autogrow_cols?!1:!0,start:t.proxy(this.on_start_resize,this),stop:t.proxy(function(i,e){delay(t.proxy(function(){this.on_stop_resize(i,e)},this),120)},this),drag:throttle(t.proxy(this.on_resize,this),60)}),this},r.setup_resize=function(){this.resize_handle_class=this.options.resize.handle_class;var i=this.options.resize.axes,e='';return this.resize_handle_tpl=t.map(i,function(t){return e.replace("{type}",t)}).join(""),t.isArray(this.options.draggable.ignore_dragging)&&this.options.draggable.ignore_dragging.push("."+this.resize_handle_class),this},r.on_start_drag=function(i,e){this.$helper.add(this.$player).add(this.$wrapper).addClass("dragging"),this.highest_col=this.get_highest_occupied_cell().col,this.$player.addClass("player"),this.player_grid_data=this.$player.coords().grid,this.placeholder_grid_data=t.extend({},this.player_grid_data),this.set_dom_grid_height(this.$el.height()+this.player_grid_data.size_y*this.min_widget_height),this.set_dom_grid_width(this.cols);var s=this.player_grid_data.size_x,r=this.cols-this.highest_col;this.options.autogrow_cols&&s>=r&&this.add_faux_cols(Math.min(s-r,1));var o=this.faux_grid,a=this.$player.data("coords").coords;this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data),this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.last_cols=[],this.last_rows=[],this.collision_api=this.$helper.collision(o,this.options.collision),this.$preview_holder=t("<"+this.$player.get(0).tagName+" />",{"class":"preview-holder","data-row":this.$player.attr("data-row"),"data-col":this.$player.attr("data-col"),css:{width:a.width,height:a.height}}).appendTo(this.$el),this.options.draggable.start&&this.options.draggable.start.call(this,i,e)},r.on_drag=function(t,i){if(null===this.$player)return!1;var e={left:i.position.left+this.baseX,top:i.position.top+this.baseY};if(this.options.autogrow_cols){var s=this.placeholder_grid_data.col+this.placeholder_grid_data.size_x-1;s>=this.cols-1&&this.options.max_cols>=this.cols+1&&(this.add_faux_cols(1),this.set_dom_grid_width(this.cols+1),this.drag_api.set_limits(this.container_width)),this.collision_api.set_colliders(this.faux_grid)}this.colliders_data=this.collision_api.get_closest_colliders(e),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.helper&&this.$player&&this.$player.css({left:i.position.left,top:i.position.top}),this.options.draggable.drag&&this.options.draggable.drag.call(this,t,i)},r.on_stop_drag=function(t,i){this.$helper.add(this.$player).add(this.$wrapper).removeClass("dragging"),i.position.left=i.position.left+this.baseX,i.position.top=i.position.top+this.baseY,this.colliders_data=this.collision_api.get_closest_colliders(i.position),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.$player.addClass("player-revert").removeClass("player").attr({"data-col":this.placeholder_grid_data.col,"data-row":this.placeholder_grid_data.row}).css({left:"",top:""}),this.$changed=this.$changed.add(this.$player),this.cells_occupied_by_player=this.get_cells_occupied(this.placeholder_grid_data),this.set_cells_player_occupies(this.placeholder_grid_data.col,this.placeholder_grid_data.row),this.$player.coords().grid.row=this.placeholder_grid_data.row,this.$player.coords().grid.col=this.placeholder_grid_data.col,this.options.draggable.stop&&this.options.draggable.stop.call(this,t,i),this.$preview_holder.remove(),this.$player=null,this.$helper=null,this.placeholder_grid_data={},this.player_grid_data={},this.cells_occupied_by_placeholder={},this.cells_occupied_by_player={},this.set_dom_grid_height(),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.cols*this.min_widget_width)},r.on_start_resize=function(i,e){this.$resized_widget=e.$player.closest(".gs-w"),this.resize_coords=this.$resized_widget.coords(),this.resize_wgd=this.resize_coords.grid,this.resize_initial_width=this.resize_coords.coords.width,this.resize_initial_height=this.resize_coords.coords.height,this.resize_initial_sizex=this.resize_coords.grid.size_x,this.resize_initial_sizey=this.resize_coords.grid.size_y,this.resize_initial_col=this.resize_coords.grid.col,this.resize_last_sizex=this.resize_initial_sizex,this.resize_last_sizey=this.resize_initial_sizey,this.resize_max_size_x=Math.min(this.resize_wgd.max_size_x||this.options.resize.max_size[0],this.options.max_cols-this.resize_initial_col+1),this.resize_max_size_y=this.resize_wgd.max_size_y||this.options.resize.max_size[1],this.resize_min_size_x=this.resize_wgd.min_size_x||this.options.resize.min_size[0]||1,this.resize_min_size_y=this.resize_wgd.min_size_y||this.options.resize.min_size[1]||1,this.resize_initial_last_col=this.get_highest_occupied_cell().col,this.set_dom_grid_width(this.cols),this.resize_dir={right:e.$player.is("."+this.resize_handle_class+"-x"),bottom:e.$player.is("."+this.resize_handle_class+"-y")},this.$resized_widget.css({"min-width":this.options.widget_base_dimensions[0],"min-height":this.options.widget_base_dimensions[1]});var s=this.$resized_widget.get(0).tagName;this.$resize_preview_holder=t("<"+s+" />",{"class":"preview-holder resize-preview-holder","data-row":this.$resized_widget.attr("data-row"),"data-col":this.$resized_widget.attr("data-col"),css:{width:this.resize_initial_width,height:this.resize_initial_height}}).appendTo(this.$el),this.$resized_widget.addClass("resizing"),this.options.resize.start&&this.options.resize.start.call(this,i,e,this.$resized_widget),this.$el.trigger("gridster:resizestart")},r.on_stop_resize=function(i,e){this.$resized_widget.removeClass("resizing").css({width:"",height:""}),delay(t.proxy(function(){this.$resize_preview_holder.remove().css({"min-width":"","min-height":""}),this.options.resize.stop&&this.options.resize.stop.call(this,i,e,this.$resized_widget),this.$el.trigger("gridster:resizestop")},this),300),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.cols*this.min_widget_width)},r.on_resize=function(t,i){var e,s=i.pointer.diff_left,r=i.pointer.diff_top,o=this.options.widget_base_dimensions[0],a=this.options.widget_base_dimensions[1],n=this.options.widget_margins[0],h=this.options.widget_margins[1],_=this.resize_max_size_x,d=this.resize_min_size_x,l=this.resize_max_size_y,c=this.resize_min_size_y,g=this.options.autogrow_cols,p=1/0,u=1/0,f=Math.ceil(s/(o+2*n)-.2),w=Math.ceil(r/(a+2*h)-.2),m=Math.max(1,this.resize_initial_sizex+f),y=Math.max(1,this.resize_initial_sizey+w),v=this.container_width/this.min_widget_width-this.resize_initial_col+1,z=v*this.min_widget_width-2*n;if(m=Math.max(Math.min(m,_),d),m=Math.min(v,m),e=_*o+2*(m-1)*n,p=Math.min(e,z),min_width=d*o+2*(m-1)*n,y=Math.max(Math.min(y,l),c),u=l*a+2*(y-1)*h,min_height=c*a+2*(y-1)*h,this.resize_dir.right?y=this.resize_initial_sizey:this.resize_dir.bottom&&(m=this.resize_initial_sizex),g){var x=this.resize_initial_col+m-1;g&&x>=this.resize_initial_last_col&&(this.set_dom_grid_width(Math.max(x+1,this.cols)),x>this.cols&&this.add_faux_cols(x-this.cols))}var $={};!this.resize_dir.bottom&&($.width=Math.max(Math.min(this.resize_initial_width+s,p),min_width)),!this.resize_dir.right&&($.height=Math.max(Math.min(this.resize_initial_height+r,u),min_height)),this.$resized_widget.css($),(m!==this.resize_last_sizex||y!==this.resize_last_sizey)&&(this.resize_widget(this.$resized_widget,m,y),this.set_dom_grid_width(this.cols),this.$resize_preview_holder.css({width:"",height:""}).attr({"data-row":this.$resized_widget.attr("data-row"),"data-sizex":m,"data-sizey":y})),this.options.resize.resize&&this.options.resize.resize.call(this,t,i,this.$resized_widget),this.$el.trigger("gridster:resize"),this.resize_last_sizex=m,this.resize_last_sizey=y},r.on_overlapped_column_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_columns(this.colliders_data[0].el.data.col),o=this.last_cols.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_cols)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_cols[s],r)&&(e||t.noop).call(this,this.last_cols[s]);return this.last_cols=r,this},r.on_overlapped_row_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_rows(this.colliders_data[0].el.data.row),o=this.last_rows.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_rows)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_rows[s],r)&&(e||t.noop).call(this,this.last_rows[s]);this.last_rows=r},r.set_player=function(t,i,e){var s=this;e||this.empty_cells_player_occupies();var r=e?{col:t}:s.colliders_data[0].el.data,o=r.col,a=i||r.row;this.player_grid_data={col:o,row:a,size_y:this.player_grid_data.size_y,size_x:this.player_grid_data.size_x},this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data);var n=this.get_widgets_overlapped(this.player_grid_data),h=this.widgets_constraints(n);if(this.manage_movements(h.can_go_up,o,a),this.manage_movements(h.can_not_go_up,o,a),!n.length){var _=this.can_go_player_up(this.player_grid_data);_!==!1&&(a=_),this.set_placeholder(o,a)}return{col:o,row:a}},r.widgets_constraints=function(i){var s,r=t([]),o=[],a=[];return i.each(t.proxy(function(i,e){var s=t(e),n=s.coords().grid;this.can_go_widget_up(n)?(r=r.add(s),o.push(n)):a.push(n)},this)),s=i.not(r),{can_go_up:e.sort_by_row_asc(o),can_not_go_up:e.sort_by_row_desc(a)}},r.manage_movements=function(i,e,s){return t.each(i,t.proxy(function(t,i){var r=i,o=r.el,a=this.can_go_widget_up(r);if(a)this.move_widget_to(o,a),this.set_placeholder(e,a+r.size_y);else{var n=this.can_go_player_up(this.player_grid_data);if(!n){var h=s+this.player_grid_data.size_y-r.row;this.move_widget_down(o,h),this.set_placeholder(e,s)}}},this)),this},r.is_player=function(t,i){if(i&&!this.gridmap[t])return!1;var e=i?this.gridmap[t][i]:t;return e&&(e.is(this.$player)||e.is(this.$helper))},r.is_player_in=function(i,e){var s=this.cells_occupied_by_player||{};return t.inArray(i,s.cols)>=0&&t.inArray(e,s.rows)>=0},r.is_placeholder_in=function(i,e){var s=this.cells_occupied_by_placeholder||{};return this.is_placeholder_in_col(i)&&t.inArray(e,s.rows)>=0},r.is_placeholder_in_col=function(i){var e=this.cells_occupied_by_placeholder||[];return t.inArray(i,e.cols)>=0},r.is_empty=function(t,i){return this.gridmap[t]!==void 0?this.gridmap[t][i]!==void 0&&this.gridmap[t][i]===!1?!0:!1:!0},r.is_occupied=function(t,i){return this.gridmap[t]?this.gridmap[t][i]?!0:!1:!1},r.is_widget=function(t,i){var e=this.gridmap[t];return e?(e=e[i],e?e:!1):!1},r.is_widget_under_player=function(t,i){return this.is_widget(t,i)?this.is_player_in(t,i):!1},r.get_widgets_under_player=function(i){i||(i=this.cells_occupied_by_player||{cols:[],rows:[]});var e=t([]);return t.each(i.cols,t.proxy(function(s,r){t.each(i.rows,t.proxy(function(t,i){this.is_widget(r,i)&&(e=e.add(this.gridmap[r][i]))},this))},this)),e},r.set_placeholder=function(i,e){var s=t.extend({},this.placeholder_grid_data),r=this.widgets_below({col:s.col,row:s.row,size_y:s.size_y,size_x:s.size_x}),o=i+s.size_x-1;o>this.cols&&(i-=o-i);var a=e>this.placeholder_grid_data.row,n=this.placeholder_grid_data.col!==i;this.placeholder_grid_data.col=i,this.placeholder_grid_data.row=e,this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.$preview_holder.attr({"data-row":e,"data-col":i}),(a||n)&&r.each(t.proxy(function(e,r){this.move_widget_up(t(r),this.placeholder_grid_data.col-i+s.size_y)},this));var h=this.get_widgets_under_player(this.cells_occupied_by_placeholder);h.length&&h.each(t.proxy(function(i,r){var o=t(r);this.move_widget_down(o,e+s.size_y-o.data("coords").grid.row)},this))},r.can_go_player_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4,o=this.get_widgets_under_player();return this.for_each_column_occupied(t,function(t){var a=this.gridmap[t],n=i+1;for(s[t]=[];--n>0&&(this.is_empty(t,n)||this.is_player(t,n)||this.is_widget(t,n)&&a[n].is(o));)s[t].push(n),r=r>n?n:r;return 0===s[t].length?(e=!1,!0):(s[t].sort(function(t,i){return t-i}),void 0)}),e?this.get_valid_rows(t,s,r):!1},r.can_go_widget_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4;return this.for_each_column_occupied(t,function(o){var a=this.gridmap[o];
+s[o]=[];for(var n=i+1;--n>0&&(!this.is_widget(o,n)||this.is_player_in(o,n)||a[n].is(t.el));)this.is_player(o,n)||this.is_placeholder_in(o,n)||this.is_player_in(o,n)||s[o].push(n),r>n&&(r=n);return 0===s[o].length?(e=!1,!0):(s[o].sort(function(t,i){return t-i}),void 0)}),e?this.get_valid_rows(t,s,r):!1},r.get_valid_rows=function(i,e,s){for(var r=i.row,o=i.row+i.size_y-1,a=i.size_y,n=s-1,h=[];o>=++n;){var _=!0;if(t.each(e,function(i,e){t.isArray(e)&&-1===t.inArray(n,e)&&(_=!1)}),_===!0&&(h.push(n),h.length===a))break}var d=!1;return 1===a?h[0]!==r&&(d=h[0]||!1):h[0]!==r&&(d=this.get_consecutive_numbers_index(h,a)),d},r.get_consecutive_numbers_index=function(t,i){for(var e=t.length,s=[],r=!0,o=-1,a=0;e>a;a++){if(r||t[a]===o+1){if(s.push(a),s.length===i)break;r=!1}else s=[],r=!0;o=t[a]}return s.length>=i?t[s[0]]:!1},r.get_widgets_overlapped=function(){var i=t([]),e=[],s=this.cells_occupied_by_player.rows.slice(0);return s.reverse(),t.each(this.cells_occupied_by_player.cols,t.proxy(function(r,o){t.each(s,t.proxy(function(s,r){if(!this.gridmap[o])return!0;var a=this.gridmap[o][r];this.is_occupied(o,r)&&!this.is_player(a)&&-1===t.inArray(a,e)&&(i=i.add(a),e.push(a))},this))},this)),i},r.on_start_overlapping_column=function(t){this.set_player(t,!1)},r.on_start_overlapping_row=function(t){this.set_player(!1,t)},r.on_stop_overlapping_column=function(t){this.set_player(t,!1);var i=this;this.for_each_widget_below(t,this.cells_occupied_by_player.rows[0],function(){i.move_widget_up(this,i.player_grid_data.size_y)})},r.on_stop_overlapping_row=function(t){this.set_player(!1,t);for(var i=this,e=this.cells_occupied_by_player.cols,s=0,r=e.length;r>s;s++)this.for_each_widget_below(e[s],t,function(){i.move_widget_up(this,i.player_grid_data.size_y)})},r.move_widget_to=function(i,e){var s=this,r=i.coords().grid;e-r.row;var o=this.widgets_below(i),a=this.can_move_to(r,r.col,e,i);return a===!1?!1:(this.remove_from_gridmap(r),r.row=e,this.add_to_gridmap(r),i.attr("data-row",e),this.$changed=this.$changed.add(i),o.each(function(i,e){var r=t(e),o=r.coords().grid,a=s.can_go_widget_up(o);a&&a!==o.row&&s.move_widget_to(r,a)}),this)},r.move_widget_up=function(i,e){var s=i.coords().grid,r=s.row,o=[];return e||(e=1),this.can_go_up(i)?(this.for_each_column_occupied(s,function(s){if(-1===t.inArray(i,o)){var a=i.coords().grid,n=r-e;if(n=this.can_go_up_to_row(a,s,n),!n)return!0;var h=this.widgets_below(i);this.remove_from_gridmap(a),a.row=n,this.add_to_gridmap(a),i.attr("data-row",a.row),this.$changed=this.$changed.add(i),o.push(i),h.each(t.proxy(function(i,s){this.move_widget_up(t(s),e)},this))}}),void 0):!1},r.move_widget_down=function(i,e){var s,r,o,a;if(0>=e)return!1;if(s=i.coords().grid,r=s.row,o=[],a=e,!i)return!1;if(-1===t.inArray(i,o)){var n=i.coords().grid,h=r+e,_=this.widgets_below(i);this.remove_from_gridmap(n),_.each(t.proxy(function(i,e){var s=t(e),r=s.coords().grid,o=this.displacement_diff(r,n,a);o>0&&this.move_widget_down(s,o)},this)),n.row=h,this.update_widget_position(n,i),i.attr("data-row",n.row),this.$changed=this.$changed.add(i),o.push(i)}},r.can_go_up_to_row=function(i,e,s){var r,o=this.gridmap,a=!0,n=[],h=i.row;if(this.for_each_column_occupied(i,function(t){for(o[t],n[t]=[],r=h;r--&&this.is_empty(t,r)&&!this.is_placeholder_in(t,r);)n[t].push(r);return n[t].length?void 0:(a=!1,!0)}),!a)return!1;for(r=s,r=1;h>r;r++){for(var _=!0,d=0,l=n.length;l>d;d++)n[d]&&-1===t.inArray(r,n[d])&&(_=!1);if(_===!0){a=r;break}}return a},r.displacement_diff=function(t,i,e){var s=t.row,r=[],o=i.row+i.size_y;this.for_each_column_occupied(t,function(t){for(var i=0,e=o;s>e;e++)this.is_empty(t,e)&&(i+=1);r.push(i)});var a=Math.max.apply(Math,r);return e-=a,e>0?e:0},r.widgets_below=function(i){var s=t.isPlainObject(i)?i:i.coords().grid,r=this;this.gridmap;var o=s.row+s.size_y-1,a=t([]);return this.for_each_column_occupied(s,function(i){r.for_each_widget_below(i,o,function(){return r.is_player(this)||-1!==t.inArray(this,a)?void 0:(a=a.add(this),!0)})}),e.sort_by_row_asc(a)},r.set_cells_player_occupies=function(t,i){return this.remove_from_gridmap(this.placeholder_grid_data),this.placeholder_grid_data.col=t,this.placeholder_grid_data.row=i,this.add_to_gridmap(this.placeholder_grid_data,this.$player),this},r.empty_cells_player_occupies=function(){return this.remove_from_gridmap(this.placeholder_grid_data),this},r.can_go_up=function(t){var i=t.coords().grid,e=i.row,s=e-1;this.gridmap;var r=!0;return 1===e?!1:(this.for_each_column_occupied(i,function(t){return this.is_widget(t,s),this.is_occupied(t,s)||this.is_player(t,s)||this.is_placeholder_in(t,s)||this.is_player_in(t,s)?(r=!1,!0):void 0}),r)},r.can_move_to=function(t,i,e,s){this.gridmap;var r=t.el,o={size_y:t.size_y,size_x:t.size_x,col:i,row:e},a=!0,n=i+t.size_x-1;return n>this.cols?!1:s&&e+t.size_y-1>s?!1:(this.for_each_cell_occupied(o,function(i,e){var s=this.is_widget(i,e);!s||t.el&&!s.is(r)||(a=!1)}),a)},r.get_targeted_columns=function(t){for(var i=(t||this.player_grid_data.col)+(this.player_grid_data.size_x-1),e=[],s=t;i>=s;s++)e.push(s);return e},r.get_targeted_rows=function(t){for(var i=(t||this.player_grid_data.row)+(this.player_grid_data.size_y-1),e=[],s=t;i>=s;s++)e.push(s);return e},r.get_cells_occupied=function(i){var e,s={cols:[],rows:[]};for(arguments[1]instanceof t&&(i=arguments[1].coords().grid),e=0;i.size_x>e;e++){var r=i.col+e;s.cols.push(r)}for(e=0;i.size_y>e;e++){var o=i.row+e;s.rows.push(o)}return s},r.for_each_cell_occupied=function(t,i){return this.for_each_column_occupied(t,function(e){this.for_each_row_occupied(t,function(t){i.call(this,e,t)})}),this},r.for_each_column_occupied=function(t,i){for(var e=0;t.size_x>e;e++){var s=t.col+e;i.call(this,s,t)}},r.for_each_row_occupied=function(t,i){for(var e=0;t.size_y>e;e++){var s=t.row+e;i.call(this,s,t)}},r._traversing_widgets=function(i,e,s,r,o){var a=this.gridmap;if(a[s]){var n,h,_=i+"/"+e;if(arguments[2]instanceof t){var d=arguments[2].coords().grid;s=d.col,r=d.row,o=arguments[3]}var l=[],c=r,g={"for_each/above":function(){for(;c--&&!(c>0&&this.is_widget(s,c)&&-1===t.inArray(a[s][c],l)&&(n=o.call(a[s][c],s,c),l.push(a[s][c]),n)););},"for_each/below":function(){for(c=r+1,h=a[s].length;h>c&&(!this.is_widget(s,c)||-1!==t.inArray(a[s][c],l)||(n=o.call(a[s][c],s,c),l.push(a[s][c]),!n));c++);}};g[_]&&g[_].call(this)}},r.for_each_widget_above=function(t,i,e){return this._traversing_widgets("for_each","above",t,i,e),this},r.for_each_widget_below=function(t,i,e){return this._traversing_widgets("for_each","below",t,i,e),this},r.get_highest_occupied_cell=function(){for(var t,i=this.gridmap,e=i[1].length,s=[],r=[],o=i.length-1;o>=1;o--)for(t=e-1;t>=1;t--)if(this.is_widget(o,t)){s.push(t),r.push(o);break}return{col:Math.max.apply(Math,r),row:Math.max.apply(Math,s)}},r.get_widgets_from=function(i,e){this.gridmap;var s=t();return i&&(s=s.add(this.$widgets.filter(function(){var e=t(this).attr("data-col");return e===i||e>i}))),e&&(s=s.add(this.$widgets.filter(function(){var i=t(this).attr("data-row");return i===e||i>e}))),s},r.set_dom_grid_height=function(t){if(t===void 0){var i=this.get_highest_occupied_cell().row;t=i*this.min_widget_height}return this.container_height=t,this.$el.css("height",this.container_height),this},r.set_dom_grid_width=function(t){t===void 0&&(t=this.get_highest_occupied_cell().col);var i=this.options.autogrow_cols?this.options.max_cols:this.cols;return t=Math.min(i,Math.max(t,this.options.min_cols)),this.container_width=t*this.min_widget_width,this.$el.css("width",this.container_width),this},r.generate_stylesheet=function(i){var s,r="",o=this.options.max_size_x||this.cols;i||(i={}),i.cols||(i.cols=this.cols),i.rows||(i.rows=this.rows),i.namespace||(i.namespace=this.options.namespace),i.widget_base_dimensions||(i.widget_base_dimensions=this.options.widget_base_dimensions),i.widget_margins||(i.widget_margins=this.options.widget_margins),i.min_widget_width=2*i.widget_margins[0]+i.widget_base_dimensions[0],i.min_widget_height=2*i.widget_margins[1]+i.widget_base_dimensions[1];var a=t.param(i);if(t.inArray(a,e.generated_stylesheets)>=0)return!1;for(this.generated_stylesheets.push(a),e.generated_stylesheets.push(a),s=i.cols;s>=0;s--)r+=i.namespace+' [data-col="'+(s+1)+'"] { left:'+(s*i.widget_base_dimensions[0]+s*i.widget_margins[0]+(s+1)*i.widget_margins[0])+"px; }\n";for(s=i.rows;s>=0;s--)r+=i.namespace+' [data-row="'+(s+1)+'"] { top:'+(s*i.widget_base_dimensions[1]+s*i.widget_margins[1]+(s+1)*i.widget_margins[1])+"px; }\n";for(var n=1;i.rows>=n;n++)r+=i.namespace+' [data-sizey="'+n+'"] { height:'+(n*i.widget_base_dimensions[1]+(n-1)*2*i.widget_margins[1])+"px; }\n";for(var h=1;o>=h;h++)r+=i.namespace+' [data-sizex="'+h+'"] { width:'+(h*i.widget_base_dimensions[0]+(h-1)*2*i.widget_margins[0])+"px; }\n";return this.remove_style_tags(),this.add_style_tag(r)},r.add_style_tag=function(t){var i=document,e=i.createElement("style");return i.getElementsByTagName("head")[0].appendChild(e),e.setAttribute("type","text/css"),e.styleSheet?e.styleSheet.cssText=t:e.appendChild(document.createTextNode(t)),this.$style_tags=this.$style_tags.add(e),this},r.remove_style_tags=function(){var i=e.generated_stylesheets,s=this.generated_stylesheets;this.$style_tags.remove(),e.generated_stylesheets=t.map(i,function(i){return-1===t.inArray(i,s)?i:void 0})},r.generate_faux_grid=function(t,i){this.faux_grid=[],this.gridmap=[];var e,s;for(e=i;e>0;e--)for(this.gridmap[e]=[],s=t;s>0;s--)this.add_faux_cell(s,e);return this},r.add_faux_cell=function(i,e){var s=t({left:this.baseX+(e-1)*this.min_widget_width,top:this.baseY+(i-1)*this.min_widget_height,width:this.min_widget_width,height:this.min_widget_height,col:e,row:i,original_col:e,original_row:i}).coords();return t.isArray(this.gridmap[e])||(this.gridmap[e]=[]),this.gridmap[e][i]=!1,this.faux_grid.push(s),this},r.add_faux_rows=function(t){for(var i=this.rows,e=i+(t||1),s=e;s>i;s--)for(var r=this.cols;r>=1;r--)this.add_faux_cell(s,r);return this.rows=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},r.add_faux_cols=function(t){var i=this.cols,e=i+(t||1);e=Math.min(e,this.options.max_cols);for(var s=i+1;e>=s;s++)for(var r=this.rows;r>=1;r--)this.add_faux_cell(r,s);return this.cols=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},r.recalculate_faux_grid=function(){var i=this.$wrapper.width();return this.baseX=(t(window).width()-i)/2,this.baseY=this.$wrapper.offset().top,t.each(this.faux_grid,t.proxy(function(t,i){this.faux_grid[t]=i.update({left:this.baseX+(i.data.col-1)*this.min_widget_width,top:this.baseY+(i.data.row-1)*this.min_widget_height})},this)),this},r.get_widgets_from_DOM=function(){var i=this.$widgets.map(t.proxy(function(i,e){var s=t(e);return this.dom_to_coords(s)},this));i=e.sort_by_row_and_col_asc(i);var s=t(i).map(t.proxy(function(t,i){return this.register_widget(i)||null},this));return s.length&&this.$el.trigger("gridster:positionschanged"),this},r.generate_grid_and_stylesheet=function(){var i=this.$wrapper.width(),e=this.options.max_cols,s=Math.floor(i/this.min_widget_width)+this.options.extra_cols,r=this.$widgets.map(function(){return t(this).attr("data-col")}).get();r.length||(r=[0]);var o=Math.max.apply(Math,r);this.cols=Math.max(o,s,this.options.min_cols),1/0!==e&&e>=o&&this.cols>e&&(this.cols=e);var a=this.options.extra_rows;return this.$widgets.each(function(i,e){a+=+t(e).attr("data-sizey")}),this.rows=Math.max(a,this.options.min_rows),this.baseX=(t(window).width()-i)/2,this.baseY=this.$wrapper.offset().top,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this.generate_faux_grid(this.rows,this.cols)},r.destroy=function(i){return this.$el.removeData("gridster"),t(window).unbind(".gridster"),this.drag_api&&this.drag_api.destroy(),this.remove_style_tags(),i&&this.$el.remove(),this},t.fn.gridster=function(i){return this.each(function(){t(this).data("gridster")||t(this).data("gridster",new e(this,i))})},e});
\ No newline at end of file
diff --git a/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.with-extras.js b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.with-extras.js
new file mode 100644
index 000000000..e748166d4
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.with-extras.js
@@ -0,0 +1,4148 @@
+/*! gridster.js - v0.5.3 - 2014-07-04
+* http://gridster.net/
+* Copyright (c) 2014 ducksboard; Licensed MIT */
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define('gridster-coords', ['jquery'], factory);
+ } else {
+ root.GridsterCoords = factory(root.$ || root.jQuery);
+ }
+
+}(this, function($) {
+ /**
+ * Creates objects with coordinates (x1, y1, x2, y2, cx, cy, width, height)
+ * to simulate DOM elements on the screen.
+ * Coords is used by Gridster to create a faux grid with any DOM element can
+ * collide.
+ *
+ * @class Coords
+ * @param {HTMLElement|Object} obj The jQuery HTMLElement or a object with: left,
+ * top, width and height properties.
+ * @return {Object} Coords instance.
+ * @constructor
+ */
+ function Coords(obj) {
+ if (obj[0] && $.isPlainObject(obj[0])) {
+ this.data = obj[0];
+ }else {
+ this.el = obj;
+ }
+
+ this.isCoords = true;
+ this.coords = {};
+ this.init();
+ return this;
+ }
+
+
+ var fn = Coords.prototype;
+
+
+ fn.init = function(){
+ this.set();
+ this.original_coords = this.get();
+ };
+
+
+ fn.set = function(update, not_update_offsets) {
+ var el = this.el;
+
+ if (el && !update) {
+ this.data = el.offset();
+ this.data.width = el.width();
+ this.data.height = el.height();
+ }
+
+ if (el && update && !not_update_offsets) {
+ var offset = el.offset();
+ this.data.top = offset.top;
+ this.data.left = offset.left;
+ }
+
+ var d = this.data;
+
+ typeof d.left === 'undefined' && (d.left = d.x1);
+ typeof d.top === 'undefined' && (d.top = d.y1);
+
+ this.coords.x1 = d.left;
+ this.coords.y1 = d.top;
+ this.coords.x2 = d.left + d.width;
+ this.coords.y2 = d.top + d.height;
+ this.coords.cx = d.left + (d.width / 2);
+ this.coords.cy = d.top + (d.height / 2);
+ this.coords.width = d.width;
+ this.coords.height = d.height;
+ this.coords.el = el || false ;
+
+ return this;
+ };
+
+
+ fn.update = function(data){
+ if (!data && !this.el) {
+ return this;
+ }
+
+ if (data) {
+ var new_data = $.extend({}, this.data, data);
+ this.data = new_data;
+ return this.set(true, true);
+ }
+
+ this.set(true);
+ return this;
+ };
+
+
+ fn.get = function(){
+ return this.coords;
+ };
+
+ fn.destroy = function() {
+ this.el.removeData('coords');
+ delete this.el;
+ };
+
+ //jQuery adapter
+ $.fn.coords = function() {
+ if (this.data('coords') ) {
+ return this.data('coords');
+ }
+
+ var ins = new Coords(this, arguments[0]);
+ this.data('coords', ins);
+ return ins;
+ };
+
+ return Coords;
+
+}));
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define('gridster-collision', ['jquery', 'gridster-coords'], factory);
+ } else {
+ root.GridsterCollision = factory(root.$ || root.jQuery,
+ root.GridsterCoords);
+ }
+
+}(this, function($, Coords) {
+
+ var defaults = {
+ colliders_context: document.body,
+ overlapping_region: 'C'
+ // ,on_overlap: function(collider_data){},
+ // on_overlap_start : function(collider_data){},
+ // on_overlap_stop : function(collider_data){}
+ };
+
+
+ /**
+ * Detects collisions between a DOM element against other DOM elements or
+ * Coords objects.
+ *
+ * @class Collision
+ * @uses Coords
+ * @param {HTMLElement} el The jQuery wrapped HTMLElement.
+ * @param {HTMLElement|Array} colliders Can be a jQuery collection
+ * of HTMLElements or an Array of Coords instances.
+ * @param {Object} [options] An Object with all options you want to
+ * overwrite:
+ * @param {String} [options.overlapping_region] Determines when collision
+ * is valid, depending on the overlapped area. Values can be: 'N', 'S',
+ * 'W', 'E', 'C' or 'all'. Default is 'C'.
+ * @param {Function} [options.on_overlap_start] Executes a function the first
+ * time each `collider ` is overlapped.
+ * @param {Function} [options.on_overlap_stop] Executes a function when a
+ * `collider` is no longer collided.
+ * @param {Function} [options.on_overlap] Executes a function when the
+ * mouse is moved during the collision.
+ * @return {Object} Collision instance.
+ * @constructor
+ */
+ function Collision(el, colliders, options) {
+ this.options = $.extend(defaults, options);
+ this.$element = el;
+ this.last_colliders = [];
+ this.last_colliders_coords = [];
+ this.set_colliders(colliders);
+
+ this.init();
+ }
+
+ Collision.defaults = defaults;
+
+ var fn = Collision.prototype;
+
+
+ fn.init = function() {
+ this.find_collisions();
+ };
+
+
+ fn.overlaps = function(a, b) {
+ var x = false;
+ var y = false;
+
+ if ((b.x1 >= a.x1 && b.x1 <= a.x2) ||
+ (b.x2 >= a.x1 && b.x2 <= a.x2) ||
+ (a.x1 >= b.x1 && a.x2 <= b.x2)
+ ) { x = true; }
+
+ if ((b.y1 >= a.y1 && b.y1 <= a.y2) ||
+ (b.y2 >= a.y1 && b.y2 <= a.y2) ||
+ (a.y1 >= b.y1 && a.y2 <= b.y2)
+ ) { y = true; }
+
+ return (x && y);
+ };
+
+
+ fn.detect_overlapping_region = function(a, b){
+ var regionX = '';
+ var regionY = '';
+
+ if (a.y1 > b.cy && a.y1 < b.y2) { regionX = 'N'; }
+ if (a.y2 > b.y1 && a.y2 < b.cy) { regionX = 'S'; }
+ if (a.x1 > b.cx && a.x1 < b.x2) { regionY = 'W'; }
+ if (a.x2 > b.x1 && a.x2 < b.cx) { regionY = 'E'; }
+
+ return (regionX + regionY) || 'C';
+ };
+
+
+ fn.calculate_overlapped_area_coords = function(a, b){
+ var x1 = Math.max(a.x1, b.x1);
+ var y1 = Math.max(a.y1, b.y1);
+ var x2 = Math.min(a.x2, b.x2);
+ var y2 = Math.min(a.y2, b.y2);
+
+ return $({
+ left: x1,
+ top: y1,
+ width : (x2 - x1),
+ height: (y2 - y1)
+ }).coords().get();
+ };
+
+
+ fn.calculate_overlapped_area = function(coords){
+ return (coords.width * coords.height);
+ };
+
+
+ fn.manage_colliders_start_stop = function(new_colliders_coords, start_callback, stop_callback){
+ var last = this.last_colliders_coords;
+
+ for (var i = 0, il = last.length; i < il; i++) {
+ if ($.inArray(last[i], new_colliders_coords) === -1) {
+ start_callback.call(this, last[i]);
+ }
+ }
+
+ for (var j = 0, jl = new_colliders_coords.length; j < jl; j++) {
+ if ($.inArray(new_colliders_coords[j], last) === -1) {
+ stop_callback.call(this, new_colliders_coords[j]);
+ }
+
+ }
+ };
+
+
+ fn.find_collisions = function(player_data_coords){
+ var self = this;
+ var overlapping_region = this.options.overlapping_region;
+ var colliders_coords = [];
+ var colliders_data = [];
+ var $colliders = (this.colliders || this.$colliders);
+ var count = $colliders.length;
+ var player_coords = self.$element.coords()
+ .update(player_data_coords || false).get();
+
+ while(count--){
+ var $collider = self.$colliders ?
+ $($colliders[count]) : $colliders[count];
+ var $collider_coords_ins = ($collider.isCoords) ?
+ $collider : $collider.coords();
+ var collider_coords = $collider_coords_ins.get();
+ var overlaps = self.overlaps(player_coords, collider_coords);
+
+ if (!overlaps) {
+ continue;
+ }
+
+ var region = self.detect_overlapping_region(
+ player_coords, collider_coords);
+
+ //todo: make this an option
+ if (region === overlapping_region || overlapping_region === 'all') {
+
+ var area_coords = self.calculate_overlapped_area_coords(
+ player_coords, collider_coords);
+ var area = self.calculate_overlapped_area(area_coords);
+ var collider_data = {
+ area: area,
+ area_coords : area_coords,
+ region: region,
+ coords: collider_coords,
+ player_coords: player_coords,
+ el: $collider
+ };
+
+ if (self.options.on_overlap) {
+ self.options.on_overlap.call(this, collider_data);
+ }
+ colliders_coords.push($collider_coords_ins);
+ colliders_data.push(collider_data);
+ }
+ }
+
+ if (self.options.on_overlap_stop || self.options.on_overlap_start) {
+ this.manage_colliders_start_stop(colliders_coords,
+ self.options.on_overlap_start, self.options.on_overlap_stop);
+ }
+
+ this.last_colliders_coords = colliders_coords;
+
+ return colliders_data;
+ };
+
+
+ fn.get_closest_colliders = function(player_data_coords){
+ var colliders = this.find_collisions(player_data_coords);
+
+ colliders.sort(function(a, b) {
+ /* if colliders are being overlapped by the "C" (center) region,
+ * we have to set a lower index in the array to which they are placed
+ * above in the grid. */
+ if (a.region === 'C' && b.region === 'C') {
+ if (a.coords.y1 < b.coords.y1 || a.coords.x1 < b.coords.x1) {
+ return - 1;
+ }else{
+ return 1;
+ }
+ }
+
+ if (a.area < b.area) {
+ return 1;
+ }
+
+ return 1;
+ });
+ return colliders;
+ };
+
+
+ fn.set_colliders = function(colliders) {
+ if (typeof colliders === 'string' || colliders instanceof $) {
+ this.$colliders = $(colliders,
+ this.options.colliders_context).not(this.$element);
+ }else{
+ this.colliders = $(colliders);
+ }
+ };
+
+
+ //jQuery adapter
+ $.fn.collision = function(collider, options) {
+ return new Collision( this, collider, options );
+ };
+
+ return Collision;
+
+}));
+
+;(function(window, undefined) {
+
+ /* Delay, debounce and throttle functions taken from underscore.js
+ *
+ * Copyright (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and
+ * Investigative Reporters & Editors
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+ window.delay = function(func, wait) {
+ var args = Array.prototype.slice.call(arguments, 2);
+ return setTimeout(function(){ return func.apply(null, args); }, wait);
+ };
+
+ window.debounce = function(func, wait, immediate) {
+ var timeout;
+ return function() {
+ var context = this, args = arguments;
+ var later = function() {
+ timeout = null;
+ if (!immediate) func.apply(context, args);
+ };
+ if (immediate && !timeout) func.apply(context, args);
+ clearTimeout(timeout);
+ timeout = setTimeout(later, wait);
+ };
+ };
+
+ window.throttle = function(func, wait) {
+ var context, args, timeout, throttling, more, result;
+ var whenDone = debounce(
+ function(){ more = throttling = false; }, wait);
+ return function() {
+ context = this; args = arguments;
+ var later = function() {
+ timeout = null;
+ if (more) func.apply(context, args);
+ whenDone();
+ };
+ if (!timeout) timeout = setTimeout(later, wait);
+ if (throttling) {
+ more = true;
+ } else {
+ result = func.apply(context, args);
+ }
+ whenDone();
+ throttling = true;
+ return result;
+ };
+ };
+
+})(window);
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define('gridster-draggable', ['jquery'], factory);
+ } else {
+ root.GridsterDraggable = factory(root.$ || root.jQuery);
+ }
+
+}(this, function($) {
+
+ var defaults = {
+ items: 'li',
+ distance: 1,
+ limit: true,
+ offset_left: 0,
+ autoscroll: true,
+ ignore_dragging: ['INPUT', 'TEXTAREA', 'SELECT', 'BUTTON'], // or function
+ handle: null,
+ container_width: 0, // 0 == auto
+ move_element: true,
+ helper: false, // or 'clone'
+ remove_helper: true
+ // drag: function(e) {},
+ // start : function(e, ui) {},
+ // stop : function(e) {}
+ };
+
+ var $window = $(window);
+ var dir_map = { x : 'left', y : 'top' };
+ var isTouch = !!('ontouchstart' in window);
+ var pointer_events = {
+ start: 'touchstart.gridster-draggable mousedown.gridster-draggable',
+ move: 'touchmove.gridster-draggable mousemove.gridster-draggable',
+ end: 'touchend.gridster-draggable mouseup.gridster-draggable'
+ };
+
+ var capitalize = function(str) {
+ return str.charAt(0).toUpperCase() + str.slice(1);
+ };
+
+ /**
+ * Basic drag implementation for DOM elements inside a container.
+ * Provide start/stop/drag callbacks.
+ *
+ * @class Draggable
+ * @param {HTMLElement} el The HTMLelement that contains all the widgets
+ * to be dragged.
+ * @param {Object} [options] An Object with all options you want to
+ * overwrite:
+ * @param {HTMLElement|String} [options.items] Define who will
+ * be the draggable items. Can be a CSS Selector String or a
+ * collection of HTMLElements.
+ * @param {Number} [options.distance] Distance in pixels after mousedown
+ * the mouse must move before dragging should start.
+ * @param {Boolean} [options.limit] Constrains dragging to the width of
+ * the container
+ * @param {Object|Function} [options.ignore_dragging] Array of node names
+ * that sould not trigger dragging, by default is `['INPUT', 'TEXTAREA',
+ * 'SELECT', 'BUTTON']`. If a function is used return true to ignore dragging.
+ * @param {offset_left} [options.offset_left] Offset added to the item
+ * that is being dragged.
+ * @param {Number} [options.drag] Executes a callback when the mouse is
+ * moved during the dragging.
+ * @param {Number} [options.start] Executes a callback when the drag
+ * starts.
+ * @param {Number} [options.stop] Executes a callback when the drag stops.
+ * @return {Object} Returns `el`.
+ * @constructor
+ */
+ function Draggable(el, options) {
+ this.options = $.extend({}, defaults, options);
+ this.$document = $(document);
+ this.$container = $(el);
+ this.$dragitems = $(this.options.items, this.$container);
+ this.is_dragging = false;
+ this.player_min_left = 0 + this.options.offset_left;
+ this.init();
+ }
+
+ Draggable.defaults = defaults;
+
+ var fn = Draggable.prototype;
+
+ fn.init = function() {
+ var pos = this.$container.css('position');
+ this.calculate_dimensions();
+ this.$container.css('position', pos === 'static' ? 'relative' : pos);
+ this.disabled = false;
+ this.events();
+
+ $(window).bind('resize.gridster-draggable',
+ throttle($.proxy(this.calculate_dimensions, this), 200));
+ };
+
+ fn.events = function() {
+ this.$container.on('selectstart.gridster-draggable',
+ $.proxy(this.on_select_start, this));
+
+ this.$container.on(pointer_events.start, this.options.items,
+ $.proxy(this.drag_handler, this));
+
+ this.$document.on(pointer_events.end, $.proxy(function(e) {
+ this.is_dragging = false;
+ if (this.disabled) { return; }
+ this.$document.off(pointer_events.move);
+ if (this.drag_start) {
+ this.on_dragstop(e);
+ }
+ }, this));
+ };
+
+ fn.get_actual_pos = function($el) {
+ var pos = $el.position();
+ return pos;
+ };
+
+
+ fn.get_mouse_pos = function(e) {
+ if (e.originalEvent && e.originalEvent.touches) {
+ var oe = e.originalEvent;
+ e = oe.touches.length ? oe.touches[0] : oe.changedTouches[0];
+ }
+
+ return {
+ left: e.clientX,
+ top: e.clientY
+ };
+ };
+
+
+ fn.get_offset = function(e) {
+ e.preventDefault();
+ var mouse_actual_pos = this.get_mouse_pos(e);
+ var diff_x = Math.round(
+ mouse_actual_pos.left - this.mouse_init_pos.left);
+ var diff_y = Math.round(mouse_actual_pos.top - this.mouse_init_pos.top);
+
+ var left = Math.round(this.el_init_offset.left +
+ diff_x - this.baseX + $(window).scrollLeft() - this.win_offset_x);
+ var top = Math.round(this.el_init_offset.top +
+ diff_y - this.baseY + $(window).scrollTop() - this.win_offset_y);
+
+ if (this.options.limit) {
+ if (left > this.player_max_left) {
+ left = this.player_max_left;
+ } else if(left < this.player_min_left) {
+ left = this.player_min_left;
+ }
+ }
+
+ return {
+ position: {
+ left: left,
+ top: top
+ },
+ pointer: {
+ left: mouse_actual_pos.left,
+ top: mouse_actual_pos.top,
+ diff_left: diff_x + ($(window).scrollLeft() - this.win_offset_x),
+ diff_top: diff_y + ($(window).scrollTop() - this.win_offset_y)
+ }
+ };
+ };
+
+
+ fn.get_drag_data = function(e) {
+ var offset = this.get_offset(e);
+ offset.$player = this.$player;
+ offset.$helper = this.helper ? this.$helper : this.$player;
+
+ return offset;
+ };
+
+
+ fn.set_limits = function(container_width) {
+ container_width || (container_width = this.$container.width());
+ this.player_max_left = (container_width - this.player_width +
+ - this.options.offset_left);
+
+ this.options.container_width = container_width;
+
+ return this;
+ };
+
+
+ fn.scroll_in = function(axis, data) {
+ var dir_prop = dir_map[axis];
+
+ var area_size = 50;
+ var scroll_inc = 30;
+
+ var is_x = axis === 'x';
+ var window_size = is_x ? this.window_width : this.window_height;
+ var doc_size = is_x ? $(document).width() : $(document).height();
+ var player_size = is_x ? this.$player.width() : this.$player.height();
+
+ var next_scroll;
+ var scroll_offset = $window['scroll' + capitalize(dir_prop)]();
+ var min_window_pos = scroll_offset;
+ var max_window_pos = min_window_pos + window_size;
+
+ var mouse_next_zone = max_window_pos - area_size; // down/right
+ var mouse_prev_zone = min_window_pos + area_size; // up/left
+
+ var abs_mouse_pos = min_window_pos + data.pointer[dir_prop];
+
+ var max_player_pos = (doc_size - window_size + player_size);
+
+ if (abs_mouse_pos >= mouse_next_zone) {
+ next_scroll = scroll_offset + scroll_inc;
+ if (next_scroll < max_player_pos) {
+ $window['scroll' + capitalize(dir_prop)](next_scroll);
+ this['scroll_offset_' + axis] += scroll_inc;
+ }
+ }
+
+ if (abs_mouse_pos <= mouse_prev_zone) {
+ next_scroll = scroll_offset - scroll_inc;
+ if (next_scroll > 0) {
+ $window['scroll' + capitalize(dir_prop)](next_scroll);
+ this['scroll_offset_' + axis] -= scroll_inc;
+ }
+ }
+
+ return this;
+ };
+
+
+ fn.manage_scroll = function(data) {
+ this.scroll_in('x', data);
+ this.scroll_in('y', data);
+ };
+
+
+ fn.calculate_dimensions = function(e) {
+ this.window_height = $window.height();
+ this.window_width = $window.width();
+ };
+
+
+ fn.drag_handler = function(e) {
+ var node = e.target.nodeName;
+ // skip if drag is disabled, or click was not done with the mouse primary button
+ if (this.disabled || e.which !== 1 && !isTouch) {
+ return;
+ }
+
+ if (this.ignore_drag(e)) {
+ return;
+ }
+
+ var self = this;
+ var first = true;
+ this.$player = $(e.currentTarget);
+
+ this.el_init_pos = this.get_actual_pos(this.$player);
+ this.mouse_init_pos = this.get_mouse_pos(e);
+ this.offsetY = this.mouse_init_pos.top - this.el_init_pos.top;
+
+ this.$document.on(pointer_events.move, function(mme) {
+ var mouse_actual_pos = self.get_mouse_pos(mme);
+ var diff_x = Math.abs(
+ mouse_actual_pos.left - self.mouse_init_pos.left);
+ var diff_y = Math.abs(
+ mouse_actual_pos.top - self.mouse_init_pos.top);
+ if (!(diff_x > self.options.distance ||
+ diff_y > self.options.distance)
+ ) {
+ return false;
+ }
+
+ if (first) {
+ first = false;
+ self.on_dragstart.call(self, mme);
+ return false;
+ }
+
+ if (self.is_dragging === true) {
+ self.on_dragmove.call(self, mme);
+ }
+
+ return false;
+ });
+
+ if (!isTouch) { return false; }
+ };
+
+
+ fn.on_dragstart = function(e) {
+ e.preventDefault();
+
+ if (this.is_dragging) { return this; }
+
+ this.drag_start = this.is_dragging = true;
+ var offset = this.$container.offset();
+ this.baseX = Math.round(offset.left);
+ this.baseY = Math.round(offset.top);
+ this.initial_container_width = this.options.container_width || this.$container.width();
+
+ if (this.options.helper === 'clone') {
+ this.$helper = this.$player.clone()
+ .appendTo(this.$container).addClass('helper');
+ this.helper = true;
+ } else {
+ this.helper = false;
+ }
+
+ this.win_offset_y = $(window).scrollTop();
+ this.win_offset_x = $(window).scrollLeft();
+ this.scroll_offset_y = 0;
+ this.scroll_offset_x = 0;
+ this.el_init_offset = this.$player.offset();
+ this.player_width = this.$player.width();
+ this.player_height = this.$player.height();
+
+ this.set_limits(this.options.container_width);
+
+ if (this.options.start) {
+ this.options.start.call(this.$player, e, this.get_drag_data(e));
+ }
+ return false;
+ };
+
+
+ fn.on_dragmove = function(e) {
+ var data = this.get_drag_data(e);
+
+ this.options.autoscroll && this.manage_scroll(data);
+
+ if (this.options.move_element) {
+ (this.helper ? this.$helper : this.$player).css({
+ 'position': 'absolute',
+ 'left' : data.position.left,
+ 'top' : data.position.top
+ });
+ }
+
+ var last_position = this.last_position || data.position;
+ data.prev_position = last_position;
+
+ if (this.options.drag) {
+ this.options.drag.call(this.$player, e, data);
+ }
+
+ this.last_position = data.position;
+ return false;
+ };
+
+
+ fn.on_dragstop = function(e) {
+ var data = this.get_drag_data(e);
+ this.drag_start = false;
+
+ if (this.options.stop) {
+ this.options.stop.call(this.$player, e, data);
+ }
+
+ if (this.helper && this.options.remove_helper) {
+ this.$helper.remove();
+ }
+
+ return false;
+ };
+
+ fn.on_select_start = function(e) {
+ if (this.disabled) { return; }
+
+ if (this.ignore_drag(e)) {
+ return;
+ }
+
+ return false;
+ };
+
+ fn.enable = function() {
+ this.disabled = false;
+ };
+
+ fn.disable = function() {
+ this.disabled = true;
+ };
+
+ fn.destroy = function() {
+ this.disable();
+
+ this.$container.off('.gridster-draggable');
+ this.$document.off('.gridster-draggable');
+ $(window).off('.gridster-draggable');
+
+ $.removeData(this.$container, 'drag');
+ };
+
+ fn.ignore_drag = function(event) {
+ if (this.options.handle) {
+ return !$(event.target).is(this.options.handle);
+ }
+
+ if ($.isFunction(this.options.ignore_dragging)) {
+ return this.options.ignore_dragging(event);
+ }
+
+ return $(event.target).is(this.options.ignore_dragging.join(', '));
+ };
+
+ //jQuery adapter
+ $.fn.drag = function ( options ) {
+ return new Draggable(this, options);
+ };
+
+ return Draggable;
+
+}));
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define(['jquery', 'gridster-draggable', 'gridster-collision'], factory);
+ } else {
+ root.Gridster = factory(root.$ || root.jQuery, root.GridsterDraggable,
+ root.GridsterCollision);
+ }
+
+ }(this, function($, Draggable, Collision) {
+
+ var defaults = {
+ namespace: '',
+ widget_selector: 'li',
+ widget_margins: [10, 10],
+ widget_base_dimensions: [400, 225],
+ extra_rows: 0,
+ extra_cols: 0,
+ min_cols: 1,
+ max_cols: Infinity,
+ min_rows: 15,
+ max_size_x: false,
+ autogrow_cols: false,
+ autogenerate_stylesheet: true,
+ avoid_overlapped_widgets: true,
+ auto_init: true,
+ serialize_params: function($w, wgd) {
+ return {
+ col: wgd.col,
+ row: wgd.row,
+ size_x: wgd.size_x,
+ size_y: wgd.size_y
+ };
+ },
+ collision: {},
+ draggable: {
+ items: '.gs-w',
+ distance: 4,
+ ignore_dragging: Draggable.defaults.ignore_dragging.slice(0)
+ },
+ resize: {
+ enabled: false,
+ axes: ['both'],
+ handle_append_to: '',
+ handle_class: 'gs-resize-handle',
+ max_size: [Infinity, Infinity],
+ min_size: [1, 1]
+ }
+ };
+
+ /**
+ * @class Gridster
+ * @uses Draggable
+ * @uses Collision
+ * @param {HTMLElement} el The HTMLelement that contains all the widgets.
+ * @param {Object} [options] An Object with all options you want to
+ * overwrite:
+ * @param {HTMLElement|String} [options.widget_selector] Define who will
+ * be the draggable widgets. Can be a CSS Selector String or a
+ * collection of HTMLElements
+ * @param {Array} [options.widget_margins] Margin between widgets.
+ * The first index for the horizontal margin (left, right) and
+ * the second for the vertical margin (top, bottom).
+ * @param {Array} [options.widget_base_dimensions] Base widget dimensions
+ * in pixels. The first index for the width and the second for the
+ * height.
+ * @param {Number} [options.extra_cols] Add more columns in addition to
+ * those that have been calculated.
+ * @param {Number} [options.extra_rows] Add more rows in addition to
+ * those that have been calculated.
+ * @param {Number} [options.min_cols] The minimum required columns.
+ * @param {Number} [options.max_cols] The maximum columns possible (set to null
+ * for no maximum).
+ * @param {Number} [options.min_rows] The minimum required rows.
+ * @param {Number} [options.max_size_x] The maximum number of columns
+ * that a widget can span.
+ * @param {Boolean} [options.autogenerate_stylesheet] If true, all the
+ * CSS required to position all widgets in their respective columns
+ * and rows will be generated automatically and injected to the
+ * `` of the document. You can set this to false, and write
+ * your own CSS targeting rows and cols via data-attributes like so:
+ * `[data-col="1"] { left: 10px; }`
+ * @param {Boolean} [options.avoid_overlapped_widgets] Avoid that widgets loaded
+ * from the DOM can be overlapped. It is helpful if the positions were
+ * bad stored in the database or if there was any conflict.
+ * @param {Boolean} [options.auto_init] Automatically call gridster init
+ * method or not when the plugin is instantiated.
+ * @param {Function} [options.serialize_params] Return the data you want
+ * for each widget in the serialization. Two arguments are passed:
+ * `$w`: the jQuery wrapped HTMLElement, and `wgd`: the grid
+ * coords object (`col`, `row`, `size_x`, `size_y`).
+ * @param {Object} [options.collision] An Object with all options for
+ * Collision class you want to overwrite. See Collision docs for
+ * more info.
+ * @param {Object} [options.draggable] An Object with all options for
+ * Draggable class you want to overwrite. See Draggable docs for more
+ * info.
+ * @param {Object|Function} [options.draggable.ignore_dragging] Note that
+ * if you use a Function, and resize is enabled, you should ignore the
+ * resize handlers manually (options.resize.handle_class).
+ * @param {Object} [options.resize] An Object with resize config options.
+ * @param {Boolean} [options.resize.enabled] Set to true to enable
+ * resizing.
+ * @param {Array} [options.resize.axes] Axes in which widgets can be
+ * resized. Possible values: ['x', 'y', 'both'].
+ * @param {String} [options.resize.handle_append_to] Set a valid CSS
+ * selector to append resize handles to.
+ * @param {String} [options.resize.handle_class] CSS class name used
+ * by resize handles.
+ * @param {Array} [options.resize.max_size] Limit widget dimensions
+ * when resizing. Array values should be integers:
+ * `[max_cols_occupied, max_rows_occupied]`
+ * @param {Array} [options.resize.min_size] Limit widget dimensions
+ * when resizing. Array values should be integers:
+ * `[min_cols_occupied, min_rows_occupied]`
+ * @param {Function} [options.resize.start] Function executed
+ * when resizing starts.
+ * @param {Function} [otions.resize.resize] Function executed
+ * during the resizing.
+ * @param {Function} [options.resize.stop] Function executed
+ * when resizing stops.
+ *
+ * @constructor
+ */
+ function Gridster(el, options) {
+ this.options = $.extend(true, {}, defaults, options);
+ this.$el = $(el);
+ this.$wrapper = this.$el.parent();
+ this.$widgets = this.$el.children(
+ this.options.widget_selector).addClass('gs-w');
+ this.widgets = [];
+ this.$changed = $([]);
+ this.wrapper_width = this.$wrapper.width();
+ this.min_widget_width = (this.options.widget_margins[0] * 2) +
+ this.options.widget_base_dimensions[0];
+ this.min_widget_height = (this.options.widget_margins[1] * 2) +
+ this.options.widget_base_dimensions[1];
+
+ this.generated_stylesheets = [];
+ this.$style_tags = $([]);
+
+ this.options.auto_init && this.init();
+ }
+
+ Gridster.defaults = defaults;
+ Gridster.generated_stylesheets = [];
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) in ascending way.
+ *
+ * @method sort_by_row_asc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_row_asc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (!a.row) {
+ a = $(a).coords().grid;
+ b = $(b).coords().grid;
+ }
+
+ if (a.row > b.row) {
+ return 1;
+ }
+ return -1;
+ });
+
+ return widgets;
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) placing first the empty cells upper left.
+ *
+ * @method sort_by_row_and_col_asc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_row_and_col_asc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (a.row > b.row || a.row === b.row && a.col > b.col) {
+ return 1;
+ }
+ return -1;
+ });
+
+ return widgets;
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects by column (representing the grid
+ * coords of each widget) in ascending way.
+ *
+ * @method sort_by_col_asc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_col_asc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (a.col > b.col) {
+ return 1;
+ }
+ return -1;
+ });
+
+ return widgets;
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) in descending way.
+ *
+ * @method sort_by_row_desc
+ * @param {Array} widgets Array of grid coords objects
+ * @return {Array} Returns the array sorted.
+ */
+ Gridster.sort_by_row_desc = function(widgets) {
+ widgets = widgets.sort(function(a, b) {
+ if (a.row + a.size_y < b.row + b.size_y) {
+ return 1;
+ }
+ return -1;
+ });
+ return widgets;
+ };
+
+
+
+ /** Instance Methods **/
+
+ var fn = Gridster.prototype;
+
+ fn.init = function() {
+ this.options.resize.enabled && this.setup_resize();
+ this.generate_grid_and_stylesheet();
+ this.get_widgets_from_DOM();
+ this.set_dom_grid_height();
+ this.set_dom_grid_width();
+ this.$wrapper.addClass('ready');
+ this.draggable();
+ this.options.resize.enabled && this.resizable();
+
+ $(window).bind('resize.gridster', throttle(
+ $.proxy(this.recalculate_faux_grid, this), 200));
+ };
+
+
+ /**
+ * Disables dragging.
+ *
+ * @method disable
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.disable = function() {
+ this.$wrapper.find('.player-revert').removeClass('player-revert');
+ this.drag_api.disable();
+ return this;
+ };
+
+
+ /**
+ * Enables dragging.
+ *
+ * @method enable
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.enable = function() {
+ this.drag_api.enable();
+ return this;
+ };
+
+
+
+ /**
+ * Disables drag-and-drop widget resizing.
+ *
+ * @method disable
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.disable_resize = function() {
+ this.$el.addClass('gs-resize-disabled');
+ this.resize_api.disable();
+ return this;
+ };
+
+
+ /**
+ * Enables drag-and-drop widget resizing.
+ *
+ * @method enable
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.enable_resize = function() {
+ this.$el.removeClass('gs-resize-disabled');
+ this.resize_api.enable();
+ return this;
+ };
+
+
+ /**
+ * Add a new widget to the grid.
+ *
+ * @method add_widget
+ * @param {String|HTMLElement} html The string representing the HTML of the widget
+ * or the HTMLElement.
+ * @param {Number} [size_x] The nº of rows the widget occupies horizontally.
+ * @param {Number} [size_y] The nº of columns the widget occupies vertically.
+ * @param {Number} [col] The column the widget should start in.
+ * @param {Number} [row] The row the widget should start in.
+ * @param {Array} [max_size] max_size Maximun size (in units) for width and height.
+ * @param {Array} [min_size] min_size Minimum size (in units) for width and height.
+ * @return {HTMLElement} Returns the jQuery wrapped HTMLElement representing.
+ * the widget that was just created.
+ */
+ fn.add_widget = function(html, size_x, size_y, col, row, max_size, min_size) {
+ var pos;
+ size_x || (size_x = 1);
+ size_y || (size_y = 1);
+
+ if (!col & !row) {
+ pos = this.next_position(size_x, size_y);
+ } else {
+ pos = {
+ col: col,
+ row: row,
+ size_x: size_x,
+ size_y: size_y
+ };
+
+ this.empty_cells(col, row, size_x, size_y);
+ }
+
+ var $w = $(html).attr({
+ 'data-col': pos.col,
+ 'data-row': pos.row,
+ 'data-sizex' : size_x,
+ 'data-sizey' : size_y
+ }).addClass('gs-w').appendTo(this.$el).hide();
+
+ this.$widgets = this.$widgets.add($w);
+
+ this.register_widget($w);
+
+ this.add_faux_rows(pos.size_y);
+ //this.add_faux_cols(pos.size_x);
+
+ if (max_size) {
+ this.set_widget_max_size($w, max_size);
+ }
+
+ if (min_size) {
+ this.set_widget_min_size($w, min_size);
+ }
+
+ this.set_dom_grid_width();
+ this.set_dom_grid_height();
+
+ this.drag_api.set_limits(this.cols * this.min_widget_width);
+
+ return $w.fadeIn();
+ };
+
+
+ /**
+ * Change widget size limits.
+ *
+ * @method set_widget_min_size
+ * @param {HTMLElement|Number} $widget The jQuery wrapped HTMLElement
+ * representing the widget or an index representing the desired widget.
+ * @param {Array} min_size Minimum size (in units) for width and height.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.set_widget_min_size = function($widget, min_size) {
+ $widget = typeof $widget === 'number' ?
+ this.$widgets.eq($widget) : $widget;
+
+ if (!$widget.length) { return this; }
+
+ var wgd = $widget.data('coords').grid;
+ wgd.min_size_x = min_size[0];
+ wgd.min_size_y = min_size[1];
+
+ return this;
+ };
+
+
+ /**
+ * Change widget size limits.
+ *
+ * @method set_widget_max_size
+ * @param {HTMLElement|Number} $widget The jQuery wrapped HTMLElement
+ * representing the widget or an index representing the desired widget.
+ * @param {Array} max_size Maximun size (in units) for width and height.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.set_widget_max_size = function($widget, max_size) {
+ $widget = typeof $widget === 'number' ?
+ this.$widgets.eq($widget) : $widget;
+
+ if (!$widget.length) { return this; }
+
+ var wgd = $widget.data('coords').grid;
+ wgd.max_size_x = max_size[0];
+ wgd.max_size_y = max_size[1];
+
+ return this;
+ };
+
+
+ /**
+ * Append the resize handle into a widget.
+ *
+ * @method add_resize_handle
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
+ * representing the widget.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.add_resize_handle = function($w) {
+ var append_to = this.options.resize.handle_append_to;
+ $(this.resize_handle_tpl).appendTo( append_to ? $(append_to, $w) : $w);
+
+ return this;
+ };
+
+
+ /**
+ * Change the size of a widget. Width is limited to the current grid width.
+ *
+ * @method resize_widget
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
+ * representing the widget.
+ * @param {Number} size_x The number of columns that will occupy the widget.
+ * By default size_x is limited to the space available from
+ * the column where the widget begins, until the last column to the right.
+ * @param {Number} size_y The number of rows that will occupy the widget.
+ * @param {Function} [callback] Function executed when the widget is removed.
+ * @return {HTMLElement} Returns $widget.
+ */
+ fn.resize_widget = function($widget, size_x, size_y, callback) {
+ var wgd = $widget.coords().grid;
+ var col = wgd.col;
+ var max_cols = this.options.max_cols;
+ var old_size_y = wgd.size_y;
+ var old_col = wgd.col;
+ var new_col = old_col;
+
+ size_x || (size_x = wgd.size_x);
+ size_y || (size_y = wgd.size_y);
+
+ if (max_cols !== Infinity) {
+ size_x = Math.min(size_x, max_cols - col + 1);
+ }
+
+ if (size_y > old_size_y) {
+ this.add_faux_rows(Math.max(size_y - old_size_y, 0));
+ }
+
+ var player_rcol = (col + size_x - 1);
+ if (player_rcol > this.cols) {
+ this.add_faux_cols(player_rcol - this.cols);
+ }
+
+ var new_grid_data = {
+ col: new_col,
+ row: wgd.row,
+ size_x: size_x,
+ size_y: size_y
+ };
+
+ this.mutate_widget_in_gridmap($widget, wgd, new_grid_data);
+
+ this.set_dom_grid_height();
+ this.set_dom_grid_width();
+
+ if (callback) {
+ callback.call(this, new_grid_data.size_x, new_grid_data.size_y);
+ }
+
+ return $widget;
+ };
+
+
+ /**
+ * Mutate widget dimensions and position in the grid map.
+ *
+ * @method mutate_widget_in_gridmap
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
+ * representing the widget to mutate.
+ * @param {Object} wgd Current widget grid data (col, row, size_x, size_y).
+ * @param {Object} new_wgd New widget grid data.
+ * @return {HTMLElement} Returns instance of gridster Class.
+ */
+ fn.mutate_widget_in_gridmap = function($widget, wgd, new_wgd) {
+ var old_size_x = wgd.size_x;
+ var old_size_y = wgd.size_y;
+
+ var old_cells_occupied = this.get_cells_occupied(wgd);
+ var new_cells_occupied = this.get_cells_occupied(new_wgd);
+
+ var empty_cols = [];
+ $.each(old_cells_occupied.cols, function(i, col) {
+ if ($.inArray(col, new_cells_occupied.cols) === -1) {
+ empty_cols.push(col);
+ }
+ });
+
+ var occupied_cols = [];
+ $.each(new_cells_occupied.cols, function(i, col) {
+ if ($.inArray(col, old_cells_occupied.cols) === -1) {
+ occupied_cols.push(col);
+ }
+ });
+
+ var empty_rows = [];
+ $.each(old_cells_occupied.rows, function(i, row) {
+ if ($.inArray(row, new_cells_occupied.rows) === -1) {
+ empty_rows.push(row);
+ }
+ });
+
+ var occupied_rows = [];
+ $.each(new_cells_occupied.rows, function(i, row) {
+ if ($.inArray(row, old_cells_occupied.rows) === -1) {
+ occupied_rows.push(row);
+ }
+ });
+
+ this.remove_from_gridmap(wgd);
+
+ if (occupied_cols.length) {
+ var cols_to_empty = [
+ new_wgd.col, new_wgd.row, new_wgd.size_x, Math.min(old_size_y, new_wgd.size_y), $widget
+ ];
+ this.empty_cells.apply(this, cols_to_empty);
+ }
+
+ if (occupied_rows.length) {
+ var rows_to_empty = [new_wgd.col, new_wgd.row, new_wgd.size_x, new_wgd.size_y, $widget];
+ this.empty_cells.apply(this, rows_to_empty);
+ }
+
+ // not the same that wgd = new_wgd;
+ wgd.col = new_wgd.col;
+ wgd.row = new_wgd.row;
+ wgd.size_x = new_wgd.size_x;
+ wgd.size_y = new_wgd.size_y;
+
+ this.add_to_gridmap(new_wgd, $widget);
+
+ $widget.removeClass('player-revert');
+
+ //update coords instance attributes
+ $widget.data('coords').update({
+ width: (new_wgd.size_x * this.options.widget_base_dimensions[0] +
+ ((new_wgd.size_x - 1) * this.options.widget_margins[0]) * 2),
+ height: (new_wgd.size_y * this.options.widget_base_dimensions[1] +
+ ((new_wgd.size_y - 1) * this.options.widget_margins[1]) * 2)
+ });
+
+ $widget.attr({
+ 'data-col': new_wgd.col,
+ 'data-row': new_wgd.row,
+ 'data-sizex': new_wgd.size_x,
+ 'data-sizey': new_wgd.size_y
+ });
+
+ if (empty_cols.length) {
+ var cols_to_remove_holes = [
+ empty_cols[0], new_wgd.row,
+ empty_cols.length,
+ Math.min(old_size_y, new_wgd.size_y),
+ $widget
+ ];
+
+ this.remove_empty_cells.apply(this, cols_to_remove_holes);
+ }
+
+ if (empty_rows.length) {
+ var rows_to_remove_holes = [
+ new_wgd.col, new_wgd.row, new_wgd.size_x, new_wgd.size_y, $widget
+ ];
+ this.remove_empty_cells.apply(this, rows_to_remove_holes);
+ }
+
+ this.move_widget_up($widget);
+
+ return this;
+ };
+
+
+ /**
+ * Move down widgets in cells represented by the arguments col, row, size_x,
+ * size_y
+ *
+ * @method empty_cells
+ * @param {Number} col The column where the group of cells begin.
+ * @param {Number} row The row where the group of cells begin.
+ * @param {Number} size_x The number of columns that the group of cells
+ * occupy.
+ * @param {Number} size_y The number of rows that the group of cells
+ * occupy.
+ * @param {HTMLElement} $exclude Exclude widgets from being moved.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.empty_cells = function(col, row, size_x, size_y, $exclude) {
+ var $nexts = this.widgets_below({
+ col: col,
+ row: row - size_y,
+ size_x: size_x,
+ size_y: size_y
+ });
+
+ $nexts.not($exclude).each($.proxy(function(i, w) {
+ var wgd = $(w).coords().grid;
+ if ( !(wgd.row <= (row + size_y - 1))) { return; }
+ var diff = (row + size_y) - wgd.row;
+ this.move_widget_down($(w), diff);
+ }, this));
+
+ this.set_dom_grid_height();
+
+ return this;
+ };
+
+
+ /**
+ * Move up widgets below cells represented by the arguments col, row, size_x,
+ * size_y.
+ *
+ * @method remove_empty_cells
+ * @param {Number} col The column where the group of cells begin.
+ * @param {Number} row The row where the group of cells begin.
+ * @param {Number} size_x The number of columns that the group of cells
+ * occupy.
+ * @param {Number} size_y The number of rows that the group of cells
+ * occupy.
+ * @param {HTMLElement} exclude Exclude widgets from being moved.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_empty_cells = function(col, row, size_x, size_y, exclude) {
+ var $nexts = this.widgets_below({
+ col: col,
+ row: row,
+ size_x: size_x,
+ size_y: size_y
+ });
+
+ $nexts.not(exclude).each($.proxy(function(i, widget) {
+ this.move_widget_up( $(widget), size_y );
+ }, this));
+
+ this.set_dom_grid_height();
+
+ return this;
+ };
+
+
+ /**
+ * Get the most left column below to add a new widget.
+ *
+ * @method next_position
+ * @param {Number} size_x The nº of rows the widget occupies horizontally.
+ * @param {Number} size_y The nº of columns the widget occupies vertically.
+ * @return {Object} Returns a grid coords object representing the future
+ * widget coords.
+ */
+ fn.next_position = function(size_x, size_y) {
+ size_x || (size_x = 1);
+ size_y || (size_y = 1);
+ var ga = this.gridmap;
+ var cols_l = ga.length;
+ var valid_pos = [];
+ var rows_l;
+
+ for (var c = 1; c < cols_l; c++) {
+ rows_l = ga[c].length;
+ for (var r = 1; r <= rows_l; r++) {
+ var can_move_to = this.can_move_to({
+ size_x: size_x,
+ size_y: size_y
+ }, c, r);
+
+ if (can_move_to) {
+ valid_pos.push({
+ col: c,
+ row: r,
+ size_y: size_y,
+ size_x: size_x
+ });
+ }
+ }
+ }
+
+ if (valid_pos.length) {
+ return Gridster.sort_by_row_and_col_asc(valid_pos)[0];
+ }
+ return false;
+ };
+
+
+ /**
+ * Remove a widget from the grid.
+ *
+ * @method remove_widget
+ * @param {HTMLElement} el The jQuery wrapped HTMLElement you want to remove.
+ * @param {Boolean|Function} silent If true, widgets below the removed one
+ * will not move up. If a Function is passed it will be used as callback.
+ * @param {Function} callback Function executed when the widget is removed.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_widget = function(el, silent, callback) {
+ var $el = el instanceof $ ? el : $(el);
+ var wgd = $el.coords().grid;
+
+ // if silent is a function assume it's a callback
+ if ($.isFunction(silent)) {
+ callback = silent;
+ silent = false;
+ }
+
+ this.cells_occupied_by_placeholder = {};
+ this.$widgets = this.$widgets.not($el);
+
+ var $nexts = this.widgets_below($el);
+
+ this.remove_from_gridmap(wgd);
+
+ $el.fadeOut($.proxy(function() {
+ $el.remove();
+
+ if (!silent) {
+ $nexts.each($.proxy(function(i, widget) {
+ this.move_widget_up( $(widget), wgd.size_y );
+ }, this));
+ }
+
+ this.set_dom_grid_height();
+
+ if (callback) {
+ callback.call(this, el);
+ }
+ }, this));
+
+ return this;
+ };
+
+
+ /**
+ * Remove all widgets from the grid.
+ *
+ * @method remove_all_widgets
+ * @param {Function} callback Function executed for each widget removed.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_all_widgets = function(callback) {
+ this.$widgets.each($.proxy(function(i, el){
+ this.remove_widget(el, true, callback);
+ }, this));
+
+ return this;
+ };
+
+
+ /**
+ * Returns a serialized array of the widgets in the grid.
+ *
+ * @method serialize
+ * @param {HTMLElement} [$widgets] The collection of jQuery wrapped
+ * HTMLElements you want to serialize. If no argument is passed all widgets
+ * will be serialized.
+ * @return {Array} Returns an Array of Objects with the data specified in
+ * the serialize_params option.
+ */
+ fn.serialize = function($widgets) {
+ $widgets || ($widgets = this.$widgets);
+
+ return $widgets.map($.proxy(function(i, widget) {
+ var $w = $(widget);
+ return this.options.serialize_params($w, $w.coords().grid);
+ }, this));
+ };
+
+
+ /**
+ * Returns a serialized array of the widgets that have changed their
+ * position.
+ *
+ * @method serialize_changed
+ * @return {Array} Returns an Array of Objects with the data specified in
+ * the serialize_params option.
+ */
+ fn.serialize_changed = function() {
+ return this.serialize(this.$changed);
+ };
+
+
+ /**
+ * Convert widgets from DOM elements to "widget grid data" Objects.
+ *
+ * @method dom_to_coords
+ * @param {HTMLElement} $widget The widget to be converted.
+ */
+ fn.dom_to_coords = function($widget) {
+ return {
+ 'col': parseInt($widget.attr('data-col'), 10),
+ 'row': parseInt($widget.attr('data-row'), 10),
+ 'size_x': parseInt($widget.attr('data-sizex'), 10) || 1,
+ 'size_y': parseInt($widget.attr('data-sizey'), 10) || 1,
+ 'max_size_x': parseInt($widget.attr('data-max-sizex'), 10) || false,
+ 'max_size_y': parseInt($widget.attr('data-max-sizey'), 10) || false,
+ 'min_size_x': parseInt($widget.attr('data-min-sizex'), 10) || false,
+ 'min_size_y': parseInt($widget.attr('data-min-sizey'), 10) || false,
+ 'el': $widget
+ };
+ };
+
+
+ /**
+ * Creates the grid coords object representing the widget an add it to the
+ * mapped array of positions.
+ *
+ * @method register_widget
+ * @param {HTMLElement|Object} $el jQuery wrapped HTMLElement representing
+ * the widget, or an "widget grid data" Object with (col, row, el ...).
+ * @return {Boolean} Returns true if the widget final position is different
+ * than the original.
+ */
+ fn.register_widget = function($el) {
+ var isDOM = $el instanceof jQuery;
+ var wgd = isDOM ? this.dom_to_coords($el) : $el;
+ isDOM || ($el = wgd.el);
+
+ var empty_upper_row = this.can_go_widget_up(wgd);
+ if (empty_upper_row) {
+ wgd.row = empty_upper_row;
+ $el.attr('data-row', empty_upper_row);
+ this.$el.trigger('gridster:positionchanged', [wgd]);
+ }
+
+ if (this.options.avoid_overlapped_widgets &&
+ !this.can_move_to(
+ {size_x: wgd.size_x, size_y: wgd.size_y}, wgd.col, wgd.row)
+ ) {
+ $.extend(wgd, this.next_position(wgd.size_x, wgd.size_y));
+ $el.attr({
+ 'data-col': wgd.col,
+ 'data-row': wgd.row,
+ 'data-sizex': wgd.size_x,
+ 'data-sizey': wgd.size_y
+ });
+ }
+
+ // attach Coord object to player data-coord attribute
+ $el.data('coords', $el.coords());
+ // Extend Coord object with grid position info
+ $el.data('coords').grid = wgd;
+
+ this.add_to_gridmap(wgd, $el);
+
+ this.options.resize.enabled && this.add_resize_handle($el);
+
+ return !! empty_upper_row;
+ };
+
+
+ /**
+ * Update in the mapped array of positions the value of cells represented by
+ * the grid coords object passed in the `grid_data` param.
+ *
+ * @param {Object} grid_data The grid coords object representing the cells
+ * to update in the mapped array.
+ * @param {HTMLElement|Boolean} value Pass `false` or the jQuery wrapped
+ * HTMLElement, depends if you want to delete an existing position or add
+ * a new one.
+ * @method update_widget_position
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.update_widget_position = function(grid_data, value) {
+ this.for_each_cell_occupied(grid_data, function(col, row) {
+ if (!this.gridmap[col]) { return this; }
+ this.gridmap[col][row] = value;
+ });
+ return this;
+ };
+
+
+ /**
+ * Remove a widget from the mapped array of positions.
+ *
+ * @method remove_from_gridmap
+ * @param {Object} grid_data The grid coords object representing the cells
+ * to update in the mapped array.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.remove_from_gridmap = function(grid_data) {
+ return this.update_widget_position(grid_data, false);
+ };
+
+
+ /**
+ * Add a widget to the mapped array of positions.
+ *
+ * @method add_to_gridmap
+ * @param {Object} grid_data The grid coords object representing the cells
+ * to update in the mapped array.
+ * @param {HTMLElement|Boolean} value The value to set in the specified
+ * position .
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.add_to_gridmap = function(grid_data, value) {
+ this.update_widget_position(grid_data, value || grid_data.el);
+
+ if (grid_data.el) {
+ var $widgets = this.widgets_below(grid_data.el);
+ $widgets.each($.proxy(function(i, widget) {
+ this.move_widget_up( $(widget));
+ }, this));
+ }
+ };
+
+
+ /**
+ * Make widgets draggable.
+ *
+ * @uses Draggable
+ * @method draggable
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.draggable = function() {
+ var self = this;
+ var draggable_options = $.extend(true, {}, this.options.draggable, {
+ offset_left: this.options.widget_margins[0],
+ offset_top: this.options.widget_margins[1],
+ container_width: this.cols * this.min_widget_width,
+ limit: true,
+ start: function(event, ui) {
+ self.$widgets.filter('.player-revert')
+ .removeClass('player-revert');
+
+ self.$player = $(this);
+ self.$helper = $(ui.$helper);
+
+ self.helper = !self.$helper.is(self.$player);
+
+ self.on_start_drag.call(self, event, ui);
+ self.$el.trigger('gridster:dragstart');
+ },
+ stop: function(event, ui) {
+ self.on_stop_drag.call(self, event, ui);
+ self.$el.trigger('gridster:dragstop');
+ },
+ drag: throttle(function(event, ui) {
+ self.on_drag.call(self, event, ui);
+ self.$el.trigger('gridster:drag');
+ }, 60)
+ });
+
+ this.drag_api = this.$el.drag(draggable_options);
+ return this;
+ };
+
+
+ /**
+ * Bind resize events to get resize working.
+ *
+ * @method resizable
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.resizable = function() {
+ this.resize_api = this.$el.drag({
+ items: '.' + this.options.resize.handle_class,
+ offset_left: this.options.widget_margins[0],
+ container_width: this.container_width,
+ move_element: false,
+ resize: true,
+ limit: this.options.autogrow_cols ? false : true,
+ start: $.proxy(this.on_start_resize, this),
+ stop: $.proxy(function(event, ui) {
+ delay($.proxy(function() {
+ this.on_stop_resize(event, ui);
+ }, this), 120);
+ }, this),
+ drag: throttle($.proxy(this.on_resize, this), 60)
+ });
+
+ return this;
+ };
+
+
+ /**
+ * Setup things required for resizing. Like build templates for drag handles.
+ *
+ * @method setup_resize
+ * @return {Class} Returns instance of gridster Class.
+ */
+ fn.setup_resize = function() {
+ this.resize_handle_class = this.options.resize.handle_class;
+ var axes = this.options.resize.axes;
+ var handle_tpl = '';
+
+ this.resize_handle_tpl = $.map(axes, function(type) {
+ return handle_tpl.replace('{type}', type);
+ }).join('');
+
+ if ($.isArray(this.options.draggable.ignore_dragging)) {
+ this.options.draggable.ignore_dragging.push(
+ '.' + this.resize_handle_class);
+ }
+
+ return this;
+ };
+
+
+ /**
+ * This function is executed when the player begins to be dragged.
+ *
+ * @method on_start_drag
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_start_drag = function(event, ui) {
+ this.$helper.add(this.$player).add(this.$wrapper).addClass('dragging');
+
+ this.highest_col = this.get_highest_occupied_cell().col;
+
+ this.$player.addClass('player');
+ this.player_grid_data = this.$player.coords().grid;
+ this.placeholder_grid_data = $.extend({}, this.player_grid_data);
+
+ this.set_dom_grid_height(this.$el.height() +
+ (this.player_grid_data.size_y * this.min_widget_height));
+
+ this.set_dom_grid_width(this.cols);
+
+ var pgd_sizex = this.player_grid_data.size_x;
+ var cols_diff = this.cols - this.highest_col;
+
+ if (this.options.autogrow_cols && cols_diff <= pgd_sizex) {
+ this.add_faux_cols(Math.min(pgd_sizex - cols_diff, 1));
+ }
+
+ var colliders = this.faux_grid;
+ var coords = this.$player.data('coords').coords;
+
+ this.cells_occupied_by_player = this.get_cells_occupied(
+ this.player_grid_data);
+ this.cells_occupied_by_placeholder = this.get_cells_occupied(
+ this.placeholder_grid_data);
+
+ this.last_cols = [];
+ this.last_rows = [];
+
+ // see jquery.collision.js
+ this.collision_api = this.$helper.collision(
+ colliders, this.options.collision);
+
+ this.$preview_holder = $('<' + this.$player.get(0).tagName + ' />', {
+ 'class': 'preview-holder',
+ 'data-row': this.$player.attr('data-row'),
+ 'data-col': this.$player.attr('data-col'),
+ css: {
+ width: coords.width,
+ height: coords.height
+ }
+ }).appendTo(this.$el);
+
+ if (this.options.draggable.start) {
+ this.options.draggable.start.call(this, event, ui);
+ }
+ };
+
+
+ /**
+ * This function is executed when the player is being dragged.
+ *
+ * @method on_drag
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_drag = function(event, ui) {
+ //break if dragstop has been fired
+ if (this.$player === null) {
+ return false;
+ }
+
+ var abs_offset = {
+ left: ui.position.left + this.baseX,
+ top: ui.position.top + this.baseY
+ };
+
+ // auto grow cols
+ if (this.options.autogrow_cols) {
+ var prcol = this.placeholder_grid_data.col +
+ this.placeholder_grid_data.size_x - 1;
+
+ // "- 1" due to adding at least 1 column in on_start_drag
+ if (prcol >= this.cols - 1 && this.options.max_cols >= this.cols + 1) {
+ this.add_faux_cols(1);
+ this.set_dom_grid_width(this.cols + 1);
+ this.drag_api.set_limits(this.container_width);
+ }
+
+ this.collision_api.set_colliders(this.faux_grid);
+ }
+
+ this.colliders_data = this.collision_api.get_closest_colliders(
+ abs_offset);
+
+ this.on_overlapped_column_change(
+ this.on_start_overlapping_column, this.on_stop_overlapping_column);
+
+ this.on_overlapped_row_change(
+ this.on_start_overlapping_row, this.on_stop_overlapping_row);
+
+
+ if (this.helper && this.$player) {
+ this.$player.css({
+ 'left': ui.position.left,
+ 'top': ui.position.top
+ });
+ }
+
+ if (this.options.draggable.drag) {
+ this.options.draggable.drag.call(this, event, ui);
+ }
+ };
+
+
+ /**
+ * This function is executed when the player stops being dragged.
+ *
+ * @method on_stop_drag
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_stop_drag = function(event, ui) {
+ this.$helper.add(this.$player).add(this.$wrapper)
+ .removeClass('dragging');
+
+ ui.position.left = ui.position.left + this.baseX;
+ ui.position.top = ui.position.top + this.baseY;
+ this.colliders_data = this.collision_api.get_closest_colliders(
+ ui.position);
+
+ this.on_overlapped_column_change(
+ this.on_start_overlapping_column,
+ this.on_stop_overlapping_column
+ );
+
+ this.on_overlapped_row_change(
+ this.on_start_overlapping_row,
+ this.on_stop_overlapping_row
+ );
+
+ this.$player.addClass('player-revert').removeClass('player')
+ .attr({
+ 'data-col': this.placeholder_grid_data.col,
+ 'data-row': this.placeholder_grid_data.row
+ }).css({
+ 'left': '',
+ 'top': ''
+ });
+
+ this.$changed = this.$changed.add(this.$player);
+
+ this.cells_occupied_by_player = this.get_cells_occupied(
+ this.placeholder_grid_data);
+ this.set_cells_player_occupies(
+ this.placeholder_grid_data.col, this.placeholder_grid_data.row);
+
+ this.$player.coords().grid.row = this.placeholder_grid_data.row;
+ this.$player.coords().grid.col = this.placeholder_grid_data.col;
+
+ if (this.options.draggable.stop) {
+ this.options.draggable.stop.call(this, event, ui);
+ }
+
+ this.$preview_holder.remove();
+
+ this.$player = null;
+ this.$helper = null;
+ this.placeholder_grid_data = {};
+ this.player_grid_data = {};
+ this.cells_occupied_by_placeholder = {};
+ this.cells_occupied_by_player = {};
+
+ this.set_dom_grid_height();
+ this.set_dom_grid_width();
+
+ if (this.options.autogrow_cols) {
+ this.drag_api.set_limits(this.cols * this.min_widget_width);
+ }
+ };
+
+
+ /**
+ * This function is executed every time a widget starts to be resized.
+ *
+ * @method on_start_resize
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_start_resize = function(event, ui) {
+ this.$resized_widget = ui.$player.closest('.gs-w');
+ this.resize_coords = this.$resized_widget.coords();
+ this.resize_wgd = this.resize_coords.grid;
+ this.resize_initial_width = this.resize_coords.coords.width;
+ this.resize_initial_height = this.resize_coords.coords.height;
+ this.resize_initial_sizex = this.resize_coords.grid.size_x;
+ this.resize_initial_sizey = this.resize_coords.grid.size_y;
+ this.resize_initial_col = this.resize_coords.grid.col;
+ this.resize_last_sizex = this.resize_initial_sizex;
+ this.resize_last_sizey = this.resize_initial_sizey;
+
+ this.resize_max_size_x = Math.min(this.resize_wgd.max_size_x ||
+ this.options.resize.max_size[0],
+ this.options.max_cols - this.resize_initial_col + 1);
+ this.resize_max_size_y = this.resize_wgd.max_size_y ||
+ this.options.resize.max_size[1];
+
+ this.resize_min_size_x = (this.resize_wgd.min_size_x ||
+ this.options.resize.min_size[0] || 1);
+ this.resize_min_size_y = (this.resize_wgd.min_size_y ||
+ this.options.resize.min_size[1] || 1);
+
+ this.resize_initial_last_col = this.get_highest_occupied_cell().col;
+
+ this.set_dom_grid_width(this.cols);
+
+ this.resize_dir = {
+ right: ui.$player.is('.' + this.resize_handle_class + '-x'),
+ bottom: ui.$player.is('.' + this.resize_handle_class + '-y')
+ };
+
+ this.$resized_widget.css({
+ 'min-width': this.options.widget_base_dimensions[0],
+ 'min-height': this.options.widget_base_dimensions[1]
+ });
+
+ var nodeName = this.$resized_widget.get(0).tagName;
+ this.$resize_preview_holder = $('<' + nodeName + ' />', {
+ 'class': 'preview-holder resize-preview-holder',
+ 'data-row': this.$resized_widget.attr('data-row'),
+ 'data-col': this.$resized_widget.attr('data-col'),
+ 'css': {
+ 'width': this.resize_initial_width,
+ 'height': this.resize_initial_height
+ }
+ }).appendTo(this.$el);
+
+ this.$resized_widget.addClass('resizing');
+
+ if (this.options.resize.start) {
+ this.options.resize.start.call(this, event, ui, this.$resized_widget);
+ }
+
+ this.$el.trigger('gridster:resizestart');
+ };
+
+
+ /**
+ * This function is executed every time a widget stops being resized.
+ *
+ * @method on_stop_resize
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_stop_resize = function(event, ui) {
+ this.$resized_widget
+ .removeClass('resizing')
+ .css({
+ 'width': '',
+ 'height': ''
+ });
+
+ delay($.proxy(function() {
+ this.$resize_preview_holder
+ .remove()
+ .css({
+ 'min-width': '',
+ 'min-height': ''
+ });
+
+ if (this.options.resize.stop) {
+ this.options.resize.stop.call(this, event, ui, this.$resized_widget);
+ }
+
+ this.$el.trigger('gridster:resizestop');
+ }, this), 300);
+
+ this.set_dom_grid_width();
+
+ if (this.options.autogrow_cols) {
+ this.drag_api.set_limits(this.cols * this.min_widget_width);
+ }
+ };
+
+
+ /**
+ * This function is executed when a widget is being resized.
+ *
+ * @method on_resize
+ * @param {Event} event The original browser event
+ * @param {Object} ui A prepared ui object with useful drag-related data
+ */
+ fn.on_resize = function(event, ui) {
+ var rel_x = (ui.pointer.diff_left);
+ var rel_y = (ui.pointer.diff_top);
+ var wbd_x = this.options.widget_base_dimensions[0];
+ var wbd_y = this.options.widget_base_dimensions[1];
+ var margin_x = this.options.widget_margins[0];
+ var margin_y = this.options.widget_margins[1];
+ var max_size_x = this.resize_max_size_x;
+ var min_size_x = this.resize_min_size_x;
+ var max_size_y = this.resize_max_size_y;
+ var min_size_y = this.resize_min_size_y;
+ var autogrow = this.options.autogrow_cols;
+ var width;
+ var max_width = Infinity;
+ var max_height = Infinity;
+
+ var inc_units_x = Math.ceil((rel_x / (wbd_x + margin_x * 2)) - 0.2);
+ var inc_units_y = Math.ceil((rel_y / (wbd_y + margin_y * 2)) - 0.2);
+
+ var size_x = Math.max(1, this.resize_initial_sizex + inc_units_x);
+ var size_y = Math.max(1, this.resize_initial_sizey + inc_units_y);
+
+ var max_cols = (this.container_width / this.min_widget_width) -
+ this.resize_initial_col + 1;
+ var limit_width = ((max_cols * this.min_widget_width) - margin_x * 2);
+
+ size_x = Math.max(Math.min(size_x, max_size_x), min_size_x);
+ size_x = Math.min(max_cols, size_x);
+ width = (max_size_x * wbd_x) + ((size_x - 1) * margin_x * 2);
+ max_width = Math.min(width, limit_width);
+ min_width = (min_size_x * wbd_x) + ((size_x - 1) * margin_x * 2);
+
+ size_y = Math.max(Math.min(size_y, max_size_y), min_size_y);
+ max_height = (max_size_y * wbd_y) + ((size_y - 1) * margin_y * 2);
+ min_height = (min_size_y * wbd_y) + ((size_y - 1) * margin_y * 2);
+
+ if (this.resize_dir.right) {
+ size_y = this.resize_initial_sizey;
+ } else if (this.resize_dir.bottom) {
+ size_x = this.resize_initial_sizex;
+ }
+
+ if (autogrow) {
+ var last_widget_col = this.resize_initial_col + size_x - 1;
+ if (autogrow && this.resize_initial_last_col <= last_widget_col) {
+ this.set_dom_grid_width(Math.max(last_widget_col + 1, this.cols));
+
+ if (this.cols < last_widget_col) {
+ this.add_faux_cols(last_widget_col - this.cols);
+ }
+ }
+ }
+
+ var css_props = {};
+ !this.resize_dir.bottom && (css_props.width = Math.max(Math.min(
+ this.resize_initial_width + rel_x, max_width), min_width));
+ !this.resize_dir.right && (css_props.height = Math.max(Math.min(
+ this.resize_initial_height + rel_y, max_height), min_height));
+
+ this.$resized_widget.css(css_props);
+
+ if (size_x !== this.resize_last_sizex ||
+ size_y !== this.resize_last_sizey) {
+
+ this.resize_widget(this.$resized_widget, size_x, size_y);
+ this.set_dom_grid_width(this.cols);
+
+ this.$resize_preview_holder.css({
+ 'width': '',
+ 'height': ''
+ }).attr({
+ 'data-row': this.$resized_widget.attr('data-row'),
+ 'data-sizex': size_x,
+ 'data-sizey': size_y
+ });
+ }
+
+ if (this.options.resize.resize) {
+ this.options.resize.resize.call(this, event, ui, this.$resized_widget);
+ }
+
+ this.$el.trigger('gridster:resize');
+
+ this.resize_last_sizex = size_x;
+ this.resize_last_sizey = size_y;
+ };
+
+
+ /**
+ * Executes the callbacks passed as arguments when a column begins to be
+ * overlapped or stops being overlapped.
+ *
+ * @param {Function} start_callback Function executed when a new column
+ * begins to be overlapped. The column is passed as first argument.
+ * @param {Function} stop_callback Function executed when a column stops
+ * being overlapped. The column is passed as first argument.
+ * @method on_overlapped_column_change
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.on_overlapped_column_change = function(start_callback, stop_callback) {
+ if (!this.colliders_data.length) {
+ return this;
+ }
+ var cols = this.get_targeted_columns(
+ this.colliders_data[0].el.data.col);
+
+ var last_n_cols = this.last_cols.length;
+ var n_cols = cols.length;
+ var i;
+
+ for (i = 0; i < n_cols; i++) {
+ if ($.inArray(cols[i], this.last_cols) === -1) {
+ (start_callback || $.noop).call(this, cols[i]);
+ }
+ }
+
+ for (i = 0; i< last_n_cols; i++) {
+ if ($.inArray(this.last_cols[i], cols) === -1) {
+ (stop_callback || $.noop).call(this, this.last_cols[i]);
+ }
+ }
+
+ this.last_cols = cols;
+
+ return this;
+ };
+
+
+ /**
+ * Executes the callbacks passed as arguments when a row starts to be
+ * overlapped or stops being overlapped.
+ *
+ * @param {Function} start_callback Function executed when a new row begins
+ * to be overlapped. The row is passed as first argument.
+ * @param {Function} end_callback Function executed when a row stops being
+ * overlapped. The row is passed as first argument.
+ * @method on_overlapped_row_change
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.on_overlapped_row_change = function(start_callback, end_callback) {
+ if (!this.colliders_data.length) {
+ return this;
+ }
+ var rows = this.get_targeted_rows(this.colliders_data[0].el.data.row);
+ var last_n_rows = this.last_rows.length;
+ var n_rows = rows.length;
+ var i;
+
+ for (i = 0; i < n_rows; i++) {
+ if ($.inArray(rows[i], this.last_rows) === -1) {
+ (start_callback || $.noop).call(this, rows[i]);
+ }
+ }
+
+ for (i = 0; i < last_n_rows; i++) {
+ if ($.inArray(this.last_rows[i], rows) === -1) {
+ (end_callback || $.noop).call(this, this.last_rows[i]);
+ }
+ }
+
+ this.last_rows = rows;
+ };
+
+
+ /**
+ * Sets the current position of the player
+ *
+ * @param {Number} col
+ * @param {Number} row
+ * @param {Boolean} no_player
+ * @method set_player
+ * @return {object}
+ */
+ fn.set_player = function(col, row, no_player) {
+ var self = this;
+ if (!no_player) {
+ this.empty_cells_player_occupies();
+ }
+ var cell = !no_player ? self.colliders_data[0].el.data : {col: col};
+ var to_col = cell.col;
+ var to_row = row || cell.row;
+
+ this.player_grid_data = {
+ col: to_col,
+ row: to_row,
+ size_y : this.player_grid_data.size_y,
+ size_x : this.player_grid_data.size_x
+ };
+
+ this.cells_occupied_by_player = this.get_cells_occupied(
+ this.player_grid_data);
+
+ var $overlapped_widgets = this.get_widgets_overlapped(
+ this.player_grid_data);
+
+ var constraints = this.widgets_constraints($overlapped_widgets);
+
+ this.manage_movements(constraints.can_go_up, to_col, to_row);
+ this.manage_movements(constraints.can_not_go_up, to_col, to_row);
+
+ /* if there is not widgets overlapping in the new player position,
+ * update the new placeholder position. */
+ if (!$overlapped_widgets.length) {
+ var pp = this.can_go_player_up(this.player_grid_data);
+ if (pp !== false) {
+ to_row = pp;
+ }
+ this.set_placeholder(to_col, to_row);
+ }
+
+ return {
+ col: to_col,
+ row: to_row
+ };
+ };
+
+
+ /**
+ * See which of the widgets in the $widgets param collection can go to
+ * a upper row and which not.
+ *
+ * @method widgets_contraints
+ * @param {jQuery} $widgets A jQuery wrapped collection of
+ * HTMLElements.
+ * @return {object} Returns a literal Object with two keys: `can_go_up` &
+ * `can_not_go_up`. Each contains a set of HTMLElements.
+ */
+ fn.widgets_constraints = function($widgets) {
+ var $widgets_can_go_up = $([]);
+ var $widgets_can_not_go_up;
+ var wgd_can_go_up = [];
+ var wgd_can_not_go_up = [];
+
+ $widgets.each($.proxy(function(i, w) {
+ var $w = $(w);
+ var wgd = $w.coords().grid;
+ if (this.can_go_widget_up(wgd)) {
+ $widgets_can_go_up = $widgets_can_go_up.add($w);
+ wgd_can_go_up.push(wgd);
+ } else {
+ wgd_can_not_go_up.push(wgd);
+ }
+ }, this));
+
+ $widgets_can_not_go_up = $widgets.not($widgets_can_go_up);
+
+ return {
+ can_go_up: Gridster.sort_by_row_asc(wgd_can_go_up),
+ can_not_go_up: Gridster.sort_by_row_desc(wgd_can_not_go_up)
+ };
+ };
+
+
+ /**
+ * Sorts an Array of grid coords objects (representing the grid coords of
+ * each widget) in descending way.
+ *
+ * @method manage_movements
+ * @param {jQuery} $widgets A jQuery collection of HTMLElements
+ * representing the widgets you want to move.
+ * @param {Number} to_col The column to which we want to move the widgets.
+ * @param {Number} to_row The row to which we want to move the widgets.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.manage_movements = function($widgets, to_col, to_row) {
+ $.each($widgets, $.proxy(function(i, w) {
+ var wgd = w;
+ var $w = wgd.el;
+
+ var can_go_widget_up = this.can_go_widget_up(wgd);
+
+ if (can_go_widget_up) {
+ //target CAN go up
+ //so move widget up
+ this.move_widget_to($w, can_go_widget_up);
+ this.set_placeholder(to_col, can_go_widget_up + wgd.size_y);
+
+ } else {
+ //target can't go up
+ var can_go_player_up = this.can_go_player_up(
+ this.player_grid_data);
+
+ if (!can_go_player_up) {
+ // target can't go up
+ // player cant't go up
+ // so we need to move widget down to a position that dont
+ // overlaps player
+ var y = (to_row + this.player_grid_data.size_y) - wgd.row;
+
+ this.move_widget_down($w, y);
+ this.set_placeholder(to_col, to_row);
+ }
+ }
+ }, this));
+
+ return this;
+ };
+
+ /**
+ * Determines if there is a widget in the row and col given. Or if the
+ * HTMLElement passed as first argument is the player.
+ *
+ * @method is_player
+ * @param {Number|HTMLElement} col_or_el A jQuery wrapped collection of
+ * HTMLElements.
+ * @param {Number} [row] The column to which we want to move the widgets.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_player = function(col_or_el, row) {
+ if (row && !this.gridmap[col_or_el]) { return false; }
+ var $w = row ? this.gridmap[col_or_el][row] : col_or_el;
+ return $w && ($w.is(this.$player) || $w.is(this.$helper));
+ };
+
+
+ /**
+ * Determines if the widget that is being dragged is currently over the row
+ * and col given.
+ *
+ * @method is_player_in
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_player_in = function(col, row) {
+ var c = this.cells_occupied_by_player || {};
+ return $.inArray(col, c.cols) >= 0 && $.inArray(row, c.rows) >= 0;
+ };
+
+
+ /**
+ * Determines if the placeholder is currently over the row and col given.
+ *
+ * @method is_placeholder_in
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_placeholder_in = function(col, row) {
+ var c = this.cells_occupied_by_placeholder || {};
+ return this.is_placeholder_in_col(col) && $.inArray(row, c.rows) >= 0;
+ };
+
+
+ /**
+ * Determines if the placeholder is currently over the column given.
+ *
+ * @method is_placeholder_in_col
+ * @param {Number} col The column to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_placeholder_in_col = function(col) {
+ var c = this.cells_occupied_by_placeholder || [];
+ return $.inArray(col, c.cols) >= 0;
+ };
+
+
+ /**
+ * Determines if the cell represented by col and row params is empty.
+ *
+ * @method is_empty
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_empty = function(col, row) {
+ if (typeof this.gridmap[col] !== 'undefined') {
+ if(typeof this.gridmap[col][row] !== 'undefined' &&
+ this.gridmap[col][row] === false
+ ) {
+ return true;
+ }
+ return false;
+ }
+ return true;
+ };
+
+
+ /**
+ * Determines if the cell represented by col and row params is occupied.
+ *
+ * @method is_occupied
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_occupied = function(col, row) {
+ if (!this.gridmap[col]) {
+ return false;
+ }
+
+ if (this.gridmap[col][row]) {
+ return true;
+ }
+ return false;
+ };
+
+
+ /**
+ * Determines if there is a widget in the cell represented by col/row params.
+ *
+ * @method is_widget
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean|HTMLElement} Returns false if there is no widget,
+ * else returns the jQuery HTMLElement
+ */
+ fn.is_widget = function(col, row) {
+ var cell = this.gridmap[col];
+ if (!cell) {
+ return false;
+ }
+
+ cell = cell[row];
+
+ if (cell) {
+ return cell;
+ }
+
+ return false;
+ };
+
+
+ /**
+ * Determines if there is a widget in the cell represented by col/row
+ * params and if this is under the widget that is being dragged.
+ *
+ * @method is_widget_under_player
+ * @param {Number} col The column to check.
+ * @param {Number} row The row to check.
+ * @return {Boolean} Returns true or false.
+ */
+ fn.is_widget_under_player = function(col, row) {
+ if (this.is_widget(col, row)) {
+ return this.is_player_in(col, row);
+ }
+ return false;
+ };
+
+
+ /**
+ * Get widgets overlapping with the player or with the object passed
+ * representing the grid cells.
+ *
+ * @method get_widgets_under_player
+ * @return {HTMLElement} Returns a jQuery collection of HTMLElements
+ */
+ fn.get_widgets_under_player = function(cells) {
+ cells || (cells = this.cells_occupied_by_player || {cols: [], rows: []});
+ var $widgets = $([]);
+
+ $.each(cells.cols, $.proxy(function(i, col) {
+ $.each(cells.rows, $.proxy(function(i, row) {
+ if(this.is_widget(col, row)) {
+ $widgets = $widgets.add(this.gridmap[col][row]);
+ }
+ }, this));
+ }, this));
+
+ return $widgets;
+ };
+
+
+ /**
+ * Put placeholder at the row and column specified.
+ *
+ * @method set_placeholder
+ * @param {Number} col The column to which we want to move the
+ * placeholder.
+ * @param {Number} row The row to which we want to move the
+ * placeholder.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.set_placeholder = function(col, row) {
+ var phgd = $.extend({}, this.placeholder_grid_data);
+ var $nexts = this.widgets_below({
+ col: phgd.col,
+ row: phgd.row,
+ size_y: phgd.size_y,
+ size_x: phgd.size_x
+ });
+
+ // Prevents widgets go out of the grid
+ var right_col = (col + phgd.size_x - 1);
+ if (right_col > this.cols) {
+ col = col - (right_col - col);
+ }
+
+ var moved_down = this.placeholder_grid_data.row < row;
+ var changed_column = this.placeholder_grid_data.col !== col;
+
+ this.placeholder_grid_data.col = col;
+ this.placeholder_grid_data.row = row;
+
+ this.cells_occupied_by_placeholder = this.get_cells_occupied(
+ this.placeholder_grid_data);
+
+ this.$preview_holder.attr({
+ 'data-row' : row,
+ 'data-col' : col
+ });
+
+ if (moved_down || changed_column) {
+ $nexts.each($.proxy(function(i, widget) {
+ this.move_widget_up(
+ $(widget), this.placeholder_grid_data.col - col + phgd.size_y);
+ }, this));
+ }
+
+ var $widgets_under_ph = this.get_widgets_under_player(
+ this.cells_occupied_by_placeholder);
+
+ if ($widgets_under_ph.length) {
+ $widgets_under_ph.each($.proxy(function(i, widget) {
+ var $w = $(widget);
+ this.move_widget_down(
+ $w, row + phgd.size_y - $w.data('coords').grid.row);
+ }, this));
+ }
+
+ };
+
+
+ /**
+ * Determines whether the player can move to a position above.
+ *
+ * @method can_go_player_up
+ * @param {Object} widget_grid_data The actual grid coords object of the
+ * player.
+ * @return {Number|Boolean} If the player can be moved to an upper row
+ * returns the row number, else returns false.
+ */
+ fn.can_go_player_up = function(widget_grid_data) {
+ var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+ var result = true;
+ var upper_rows = [];
+ var min_row = 10000;
+ var $widgets_under_player = this.get_widgets_under_player();
+
+ /* generate an array with columns as index and array with upper rows
+ * empty as value */
+ this.for_each_column_occupied(widget_grid_data, function(tcol) {
+ var grid_col = this.gridmap[tcol];
+ var r = p_bottom_row + 1;
+ upper_rows[tcol] = [];
+
+ while (--r > 0) {
+ if (this.is_empty(tcol, r) || this.is_player(tcol, r) ||
+ this.is_widget(tcol, r) &&
+ grid_col[r].is($widgets_under_player)
+ ) {
+ upper_rows[tcol].push(r);
+ min_row = r < min_row ? r : min_row;
+ } else {
+ break;
+ }
+ }
+
+ if (upper_rows[tcol].length === 0) {
+ result = false;
+ return true; //break
+ }
+
+ upper_rows[tcol].sort(function(a, b) {
+ return a - b;
+ });
+ });
+
+ if (!result) { return false; }
+
+ return this.get_valid_rows(widget_grid_data, upper_rows, min_row);
+ };
+
+
+ /**
+ * Determines whether a widget can move to a position above.
+ *
+ * @method can_go_widget_up
+ * @param {Object} widget_grid_data The actual grid coords object of the
+ * widget we want to check.
+ * @return {Number|Boolean} If the widget can be moved to an upper row
+ * returns the row number, else returns false.
+ */
+ fn.can_go_widget_up = function(widget_grid_data) {
+ var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+ var result = true;
+ var upper_rows = [];
+ var min_row = 10000;
+
+ /* generate an array with columns as index and array with topmost rows
+ * empty as value */
+ this.for_each_column_occupied(widget_grid_data, function(tcol) {
+ var grid_col = this.gridmap[tcol];
+ upper_rows[tcol] = [];
+
+ var r = p_bottom_row + 1;
+ // iterate over each row
+ while (--r > 0) {
+ if (this.is_widget(tcol, r) && !this.is_player_in(tcol, r)) {
+ if (!grid_col[r].is(widget_grid_data.el)) {
+ break;
+ }
+ }
+
+ if (!this.is_player(tcol, r) &&
+ !this.is_placeholder_in(tcol, r) &&
+ !this.is_player_in(tcol, r)) {
+ upper_rows[tcol].push(r);
+ }
+
+ if (r < min_row) {
+ min_row = r;
+ }
+ }
+
+ if (upper_rows[tcol].length === 0) {
+ result = false;
+ return true; //break
+ }
+
+ upper_rows[tcol].sort(function(a, b) {
+ return a - b;
+ });
+ });
+
+ if (!result) { return false; }
+
+ return this.get_valid_rows(widget_grid_data, upper_rows, min_row);
+ };
+
+
+ /**
+ * Search a valid row for the widget represented by `widget_grid_data' in
+ * the `upper_rows` array. Iteration starts from row specified in `min_row`.
+ *
+ * @method get_valid_rows
+ * @param {Object} widget_grid_data The actual grid coords object of the
+ * player.
+ * @param {Array} upper_rows An array with columns as index and arrays
+ * of valid rows as values.
+ * @param {Number} min_row The upper row from which the iteration will start.
+ * @return {Number|Boolean} Returns the upper row valid from the `upper_rows`
+ * for the widget in question.
+ */
+ fn.get_valid_rows = function(widget_grid_data, upper_rows, min_row) {
+ var p_top_row = widget_grid_data.row;
+ var p_bottom_row = widget_grid_data.row + widget_grid_data.size_y - 1;
+ var size_y = widget_grid_data.size_y;
+ var r = min_row - 1;
+ var valid_rows = [];
+
+ while (++r <= p_bottom_row ) {
+ var common = true;
+ $.each(upper_rows, function(col, rows) {
+ if ($.isArray(rows) && $.inArray(r, rows) === -1) {
+ common = false;
+ }
+ });
+
+ if (common === true) {
+ valid_rows.push(r);
+ if (valid_rows.length === size_y) {
+ break;
+ }
+ }
+ }
+
+ var new_row = false;
+ if (size_y === 1) {
+ if (valid_rows[0] !== p_top_row) {
+ new_row = valid_rows[0] || false;
+ }
+ } else {
+ if (valid_rows[0] !== p_top_row) {
+ new_row = this.get_consecutive_numbers_index(
+ valid_rows, size_y);
+ }
+ }
+
+ return new_row;
+ };
+
+
+ fn.get_consecutive_numbers_index = function(arr, size_y) {
+ var max = arr.length;
+ var result = [];
+ var first = true;
+ var prev = -1; // or null?
+
+ for (var i=0; i < max; i++) {
+ if (first || arr[i] === prev + 1) {
+ result.push(i);
+ if (result.length === size_y) {
+ break;
+ }
+ first = false;
+ } else {
+ result = [];
+ first = true;
+ }
+
+ prev = arr[i];
+ }
+
+ return result.length >= size_y ? arr[result[0]] : false;
+ };
+
+
+ /**
+ * Get widgets overlapping with the player.
+ *
+ * @method get_widgets_overlapped
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.get_widgets_overlapped = function() {
+ var $w;
+ var $widgets = $([]);
+ var used = [];
+ var rows_from_bottom = this.cells_occupied_by_player.rows.slice(0);
+ rows_from_bottom.reverse();
+
+ $.each(this.cells_occupied_by_player.cols, $.proxy(function(i, col) {
+ $.each(rows_from_bottom, $.proxy(function(i, row) {
+ // if there is a widget in the player position
+ if (!this.gridmap[col]) { return true; } //next iteration
+ var $w = this.gridmap[col][row];
+ if (this.is_occupied(col, row) && !this.is_player($w) &&
+ $.inArray($w, used) === -1
+ ) {
+ $widgets = $widgets.add($w);
+ used.push($w);
+ }
+
+ }, this));
+ }, this));
+
+ return $widgets;
+ };
+
+
+ /**
+ * This callback is executed when the player begins to collide with a column.
+ *
+ * @method on_start_overlapping_column
+ * @param {Number} col The collided column.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_start_overlapping_column = function(col) {
+ this.set_player(col, false);
+ };
+
+
+ /**
+ * A callback executed when the player begins to collide with a row.
+ *
+ * @method on_start_overlapping_row
+ * @param {Number} row The collided row.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_start_overlapping_row = function(row) {
+ this.set_player(false, row);
+ };
+
+
+ /**
+ * A callback executed when the the player ends to collide with a column.
+ *
+ * @method on_stop_overlapping_column
+ * @param {Number} col The collided row.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_stop_overlapping_column = function(col) {
+ this.set_player(col, false);
+
+ var self = this;
+ this.for_each_widget_below(col, this.cells_occupied_by_player.rows[0],
+ function(tcol, trow) {
+ self.move_widget_up(this, self.player_grid_data.size_y);
+ });
+ };
+
+
+ /**
+ * This callback is executed when the player ends to collide with a row.
+ *
+ * @method on_stop_overlapping_row
+ * @param {Number} row The collided row.
+ * @return {jQuery} Returns a jQuery collection of HTMLElements.
+ */
+ fn.on_stop_overlapping_row = function(row) {
+ this.set_player(false, row);
+
+ var self = this;
+ var cols = this.cells_occupied_by_player.cols;
+ for (var c = 0, cl = cols.length; c < cl; c++) {
+ this.for_each_widget_below(cols[c], row, function(tcol, trow) {
+ self.move_widget_up(this, self.player_grid_data.size_y);
+ });
+ }
+ };
+
+
+ /**
+ * Move a widget to a specific row. The cell or cells must be empty.
+ * If the widget has widgets below, all of these widgets will be moved also
+ * if they can.
+ *
+ * @method move_widget_to
+ * @param {HTMLElement} $widget The jQuery wrapped HTMLElement of the
+ * widget is going to be moved.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.move_widget_to = function($widget, row) {
+ var self = this;
+ var widget_grid_data = $widget.coords().grid;
+ var diff = row - widget_grid_data.row;
+ var $next_widgets = this.widgets_below($widget);
+
+ var can_move_to_new_cell = this.can_move_to(
+ widget_grid_data, widget_grid_data.col, row, $widget);
+
+ if (can_move_to_new_cell === false) {
+ return false;
+ }
+
+ this.remove_from_gridmap(widget_grid_data);
+ widget_grid_data.row = row;
+ this.add_to_gridmap(widget_grid_data);
+ $widget.attr('data-row', row);
+ this.$changed = this.$changed.add($widget);
+
+
+ $next_widgets.each(function(i, widget) {
+ var $w = $(widget);
+ var wgd = $w.coords().grid;
+ var can_go_up = self.can_go_widget_up(wgd);
+ if (can_go_up && can_go_up !== wgd.row) {
+ self.move_widget_to($w, can_go_up);
+ }
+ });
+
+ return this;
+ };
+
+
+ /**
+ * Move up the specified widget and all below it.
+ *
+ * @method move_widget_up
+ * @param {HTMLElement} $widget The widget you want to move.
+ * @param {Number} [y_units] The number of cells that the widget has to move.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.move_widget_up = function($widget, y_units) {
+ var el_grid_data = $widget.coords().grid;
+ var actual_row = el_grid_data.row;
+ var moved = [];
+ var can_go_up = true;
+ y_units || (y_units = 1);
+
+ if (!this.can_go_up($widget)) { return false; } //break;
+
+ this.for_each_column_occupied(el_grid_data, function(col) {
+ // can_go_up
+ if ($.inArray($widget, moved) === -1) {
+ var widget_grid_data = $widget.coords().grid;
+ var next_row = actual_row - y_units;
+ next_row = this.can_go_up_to_row(
+ widget_grid_data, col, next_row);
+
+ if (!next_row) {
+ return true;
+ }
+
+ var $next_widgets = this.widgets_below($widget);
+
+ this.remove_from_gridmap(widget_grid_data);
+ widget_grid_data.row = next_row;
+ this.add_to_gridmap(widget_grid_data);
+ $widget.attr('data-row', widget_grid_data.row);
+ this.$changed = this.$changed.add($widget);
+
+ moved.push($widget);
+
+ $next_widgets.each($.proxy(function(i, widget) {
+ this.move_widget_up($(widget), y_units);
+ }, this));
+ }
+ });
+
+ };
+
+
+ /**
+ * Move down the specified widget and all below it.
+ *
+ * @method move_widget_down
+ * @param {jQuery} $widget The jQuery object representing the widget
+ * you want to move.
+ * @param {Number} y_units The number of cells that the widget has to move.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.move_widget_down = function($widget, y_units) {
+ var el_grid_data, actual_row, moved, y_diff;
+
+ if (y_units <= 0) { return false; }
+
+ el_grid_data = $widget.coords().grid;
+ actual_row = el_grid_data.row;
+ moved = [];
+ y_diff = y_units;
+
+ if (!$widget) { return false; }
+
+ if ($.inArray($widget, moved) === -1) {
+
+ var widget_grid_data = $widget.coords().grid;
+ var next_row = actual_row + y_units;
+ var $next_widgets = this.widgets_below($widget);
+
+ this.remove_from_gridmap(widget_grid_data);
+
+ $next_widgets.each($.proxy(function(i, widget) {
+ var $w = $(widget);
+ var wd = $w.coords().grid;
+ var tmp_y = this.displacement_diff(
+ wd, widget_grid_data, y_diff);
+
+ if (tmp_y > 0) {
+ this.move_widget_down($w, tmp_y);
+ }
+ }, this));
+
+ widget_grid_data.row = next_row;
+ this.update_widget_position(widget_grid_data, $widget);
+ $widget.attr('data-row', widget_grid_data.row);
+ this.$changed = this.$changed.add($widget);
+
+ moved.push($widget);
+ }
+ };
+
+
+ /**
+ * Check if the widget can move to the specified row, else returns the
+ * upper row possible.
+ *
+ * @method can_go_up_to_row
+ * @param {Number} widget_grid_data The current grid coords object of the
+ * widget.
+ * @param {Number} col The target column.
+ * @param {Number} row The target row.
+ * @return {Boolean|Number} Returns the row number if the widget can move
+ * to the target position, else returns false.
+ */
+ fn.can_go_up_to_row = function(widget_grid_data, col, row) {
+ var ga = this.gridmap;
+ var result = true;
+ var urc = []; // upper_rows_in_columns
+ var actual_row = widget_grid_data.row;
+ var r;
+
+ /* generate an array with columns as index and array with
+ * upper rows empty in the column */
+ this.for_each_column_occupied(widget_grid_data, function(tcol) {
+ var grid_col = ga[tcol];
+ urc[tcol] = [];
+
+ r = actual_row;
+ while (r--) {
+ if (this.is_empty(tcol, r) &&
+ !this.is_placeholder_in(tcol, r)
+ ) {
+ urc[tcol].push(r);
+ } else {
+ break;
+ }
+ }
+
+ if (!urc[tcol].length) {
+ result = false;
+ return true;
+ }
+
+ });
+
+ if (!result) { return false; }
+
+ /* get common rows starting from upper position in all the columns
+ * that widget occupies */
+ r = row;
+ for (r = 1; r < actual_row; r++) {
+ var common = true;
+
+ for (var uc = 0, ucl = urc.length; uc < ucl; uc++) {
+ if (urc[uc] && $.inArray(r, urc[uc]) === -1) {
+ common = false;
+ }
+ }
+
+ if (common === true) {
+ result = r;
+ break;
+ }
+ }
+
+ return result;
+ };
+
+
+ fn.displacement_diff = function(widget_grid_data, parent_bgd, y_units) {
+ var actual_row = widget_grid_data.row;
+ var diffs = [];
+ var parent_max_y = parent_bgd.row + parent_bgd.size_y;
+
+ this.for_each_column_occupied(widget_grid_data, function(col) {
+ var temp_y_units = 0;
+
+ for (var r = parent_max_y; r < actual_row; r++) {
+ if (this.is_empty(col, r)) {
+ temp_y_units = temp_y_units + 1;
+ }
+ }
+
+ diffs.push(temp_y_units);
+ });
+
+ var max_diff = Math.max.apply(Math, diffs);
+ y_units = (y_units - max_diff);
+
+ return y_units > 0 ? y_units : 0;
+ };
+
+
+ /**
+ * Get widgets below a widget.
+ *
+ * @method widgets_below
+ * @param {HTMLElement} $el The jQuery wrapped HTMLElement.
+ * @return {jQuery} A jQuery collection of HTMLElements.
+ */
+ fn.widgets_below = function($el) {
+ var el_grid_data = $.isPlainObject($el) ? $el : $el.coords().grid;
+ var self = this;
+ var ga = this.gridmap;
+ var next_row = el_grid_data.row + el_grid_data.size_y - 1;
+ var $nexts = $([]);
+
+ this.for_each_column_occupied(el_grid_data, function(col) {
+ self.for_each_widget_below(col, next_row, function(tcol, trow) {
+ if (!self.is_player(this) && $.inArray(this, $nexts) === -1) {
+ $nexts = $nexts.add(this);
+ return true; // break
+ }
+ });
+ });
+
+ return Gridster.sort_by_row_asc($nexts);
+ };
+
+
+ /**
+ * Update the array of mapped positions with the new player position.
+ *
+ * @method set_cells_player_occupies
+ * @param {Number} col The new player col.
+ * @param {Number} col The new player row.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.set_cells_player_occupies = function(col, row) {
+ this.remove_from_gridmap(this.placeholder_grid_data);
+ this.placeholder_grid_data.col = col;
+ this.placeholder_grid_data.row = row;
+ this.add_to_gridmap(this.placeholder_grid_data, this.$player);
+ return this;
+ };
+
+
+ /**
+ * Remove from the array of mapped positions the reference to the player.
+ *
+ * @method empty_cells_player_occupies
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.empty_cells_player_occupies = function() {
+ this.remove_from_gridmap(this.placeholder_grid_data);
+ return this;
+ };
+
+
+ fn.can_go_up = function($el) {
+ var el_grid_data = $el.coords().grid;
+ var initial_row = el_grid_data.row;
+ var prev_row = initial_row - 1;
+ var ga = this.gridmap;
+ var upper_rows_by_column = [];
+
+ var result = true;
+ if (initial_row === 1) { return false; }
+
+ this.for_each_column_occupied(el_grid_data, function(col) {
+ var $w = this.is_widget(col, prev_row);
+
+ if (this.is_occupied(col, prev_row) ||
+ this.is_player(col, prev_row) ||
+ this.is_placeholder_in(col, prev_row) ||
+ this.is_player_in(col, prev_row)
+ ) {
+ result = false;
+ return true; //break
+ }
+ });
+
+ return result;
+ };
+
+
+ /**
+ * Check if it's possible to move a widget to a specific col/row. It takes
+ * into account the dimensions (`size_y` and `size_x` attrs. of the grid
+ * coords object) the widget occupies.
+ *
+ * @method can_move_to
+ * @param {Object} widget_grid_data The grid coords object that represents
+ * the widget.
+ * @param {Object} col The col to check.
+ * @param {Object} row The row to check.
+ * @param {Number} [max_row] The max row allowed.
+ * @return {Boolean} Returns true if all cells are empty, else return false.
+ */
+ fn.can_move_to = function(widget_grid_data, col, row, max_row) {
+ var ga = this.gridmap;
+ var $w = widget_grid_data.el;
+ var future_wd = {
+ size_y: widget_grid_data.size_y,
+ size_x: widget_grid_data.size_x,
+ col: col,
+ row: row
+ };
+ var result = true;
+
+ //Prevents widgets go out of the grid
+ var right_col = col + widget_grid_data.size_x - 1;
+ if (right_col > this.cols) {
+ return false;
+ }
+
+ if (max_row && max_row < row + widget_grid_data.size_y - 1) {
+ return false;
+ }
+
+ this.for_each_cell_occupied(future_wd, function(tcol, trow) {
+ var $tw = this.is_widget(tcol, trow);
+ if ($tw && (!widget_grid_data.el || $tw.is($w))) {
+ result = false;
+ }
+ });
+
+ return result;
+ };
+
+
+ /**
+ * Given the leftmost column returns all columns that are overlapping
+ * with the player.
+ *
+ * @method get_targeted_columns
+ * @param {Number} [from_col] The leftmost column.
+ * @return {Array} Returns an array with column numbers.
+ */
+ fn.get_targeted_columns = function(from_col) {
+ var max = (from_col || this.player_grid_data.col) +
+ (this.player_grid_data.size_x - 1);
+ var cols = [];
+ for (var col = from_col; col <= max; col++) {
+ cols.push(col);
+ }
+ return cols;
+ };
+
+
+ /**
+ * Given the upper row returns all rows that are overlapping with the player.
+ *
+ * @method get_targeted_rows
+ * @param {Number} [from_row] The upper row.
+ * @return {Array} Returns an array with row numbers.
+ */
+ fn.get_targeted_rows = function(from_row) {
+ var max = (from_row || this.player_grid_data.row) +
+ (this.player_grid_data.size_y - 1);
+ var rows = [];
+ for (var row = from_row; row <= max; row++) {
+ rows.push(row);
+ }
+ return rows;
+ };
+
+ /**
+ * Get all columns and rows that a widget occupies.
+ *
+ * @method get_cells_occupied
+ * @param {Object} el_grid_data The grid coords object of the widget.
+ * @return {Object} Returns an object like `{ cols: [], rows: []}`.
+ */
+ fn.get_cells_occupied = function(el_grid_data) {
+ var cells = { cols: [], rows: []};
+ var i;
+ if (arguments[1] instanceof $) {
+ el_grid_data = arguments[1].coords().grid;
+ }
+
+ for (i = 0; i < el_grid_data.size_x; i++) {
+ var col = el_grid_data.col + i;
+ cells.cols.push(col);
+ }
+
+ for (i = 0; i < el_grid_data.size_y; i++) {
+ var row = el_grid_data.row + i;
+ cells.rows.push(row);
+ }
+
+ return cells;
+ };
+
+
+ /**
+ * Iterate over the cells occupied by a widget executing a function for
+ * each one.
+ *
+ * @method for_each_cell_occupied
+ * @param {Object} el_grid_data The grid coords object that represents the
+ * widget.
+ * @param {Function} callback The function to execute on each column
+ * iteration. Column and row are passed as arguments.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_cell_occupied = function(grid_data, callback) {
+ this.for_each_column_occupied(grid_data, function(col) {
+ this.for_each_row_occupied(grid_data, function(row) {
+ callback.call(this, col, row);
+ });
+ });
+ return this;
+ };
+
+
+ /**
+ * Iterate over the columns occupied by a widget executing a function for
+ * each one.
+ *
+ * @method for_each_column_occupied
+ * @param {Object} el_grid_data The grid coords object that represents
+ * the widget.
+ * @param {Function} callback The function to execute on each column
+ * iteration. The column number is passed as first argument.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_column_occupied = function(el_grid_data, callback) {
+ for (var i = 0; i < el_grid_data.size_x; i++) {
+ var col = el_grid_data.col + i;
+ callback.call(this, col, el_grid_data);
+ }
+ };
+
+
+ /**
+ * Iterate over the rows occupied by a widget executing a function for
+ * each one.
+ *
+ * @method for_each_row_occupied
+ * @param {Object} el_grid_data The grid coords object that represents
+ * the widget.
+ * @param {Function} callback The function to execute on each column
+ * iteration. The row number is passed as first argument.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_row_occupied = function(el_grid_data, callback) {
+ for (var i = 0; i < el_grid_data.size_y; i++) {
+ var row = el_grid_data.row + i;
+ callback.call(this, row, el_grid_data);
+ }
+ };
+
+
+
+ fn._traversing_widgets = function(type, direction, col, row, callback) {
+ var ga = this.gridmap;
+ if (!ga[col]) { return; }
+
+ var cr, max;
+ var action = type + '/' + direction;
+ if (arguments[2] instanceof $) {
+ var el_grid_data = arguments[2].coords().grid;
+ col = el_grid_data.col;
+ row = el_grid_data.row;
+ callback = arguments[3];
+ }
+ var matched = [];
+ var trow = row;
+
+
+ var methods = {
+ 'for_each/above': function() {
+ while (trow--) {
+ if (trow > 0 && this.is_widget(col, trow) &&
+ $.inArray(ga[col][trow], matched) === -1
+ ) {
+ cr = callback.call(ga[col][trow], col, trow);
+ matched.push(ga[col][trow]);
+ if (cr) { break; }
+ }
+ }
+ },
+ 'for_each/below': function() {
+ for (trow = row + 1, max = ga[col].length; trow < max; trow++) {
+ if (this.is_widget(col, trow) &&
+ $.inArray(ga[col][trow], matched) === -1
+ ) {
+ cr = callback.call(ga[col][trow], col, trow);
+ matched.push(ga[col][trow]);
+ if (cr) { break; }
+ }
+ }
+ }
+ };
+
+ if (methods[action]) {
+ methods[action].call(this);
+ }
+ };
+
+
+ /**
+ * Iterate over each widget above the column and row specified.
+ *
+ * @method for_each_widget_above
+ * @param {Number} col The column to start iterating.
+ * @param {Number} row The row to start iterating.
+ * @param {Function} callback The function to execute on each widget
+ * iteration. The value of `this` inside the function is the jQuery
+ * wrapped HTMLElement.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_widget_above = function(col, row, callback) {
+ this._traversing_widgets('for_each', 'above', col, row, callback);
+ return this;
+ };
+
+
+ /**
+ * Iterate over each widget below the column and row specified.
+ *
+ * @method for_each_widget_below
+ * @param {Number} col The column to start iterating.
+ * @param {Number} row The row to start iterating.
+ * @param {Function} callback The function to execute on each widget
+ * iteration. The value of `this` inside the function is the jQuery wrapped
+ * HTMLElement.
+ * @return {Class} Returns the instance of the Gridster Class.
+ */
+ fn.for_each_widget_below = function(col, row, callback) {
+ this._traversing_widgets('for_each', 'below', col, row, callback);
+ return this;
+ };
+
+
+ /**
+ * Returns the highest occupied cell in the grid.
+ *
+ * @method get_highest_occupied_cell
+ * @return {Object} Returns an object with `col` and `row` numbers.
+ */
+ fn.get_highest_occupied_cell = function() {
+ var r;
+ var gm = this.gridmap;
+ var rl = gm[1].length;
+ var rows = [], cols = [];
+ var row_in_col = [];
+ for (var c = gm.length - 1; c >= 1; c--) {
+ for (r = rl - 1; r >= 1; r--) {
+ if (this.is_widget(c, r)) {
+ rows.push(r);
+ cols.push(c);
+ break;
+ }
+ }
+ }
+
+ return {
+ col: Math.max.apply(Math, cols),
+ row: Math.max.apply(Math, rows)
+ };
+ };
+
+
+ fn.get_widgets_from = function(col, row) {
+ var ga = this.gridmap;
+ var $widgets = $();
+
+ if (col) {
+ $widgets = $widgets.add(
+ this.$widgets.filter(function() {
+ var tcol = $(this).attr('data-col');
+ return (tcol === col || tcol > col);
+ })
+ );
+ }
+
+ if (row) {
+ $widgets = $widgets.add(
+ this.$widgets.filter(function() {
+ var trow = $(this).attr('data-row');
+ return (trow === row || trow > row);
+ })
+ );
+ }
+
+ return $widgets;
+ };
+
+
+ /**
+ * Set the current height of the parent grid.
+ *
+ * @method set_dom_grid_height
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.set_dom_grid_height = function(height) {
+ if (typeof height === 'undefined') {
+ var r = this.get_highest_occupied_cell().row;
+ height = r * this.min_widget_height;
+ }
+
+ this.container_height = height;
+ this.$el.css('height', this.container_height);
+ return this;
+ };
+
+ /**
+ * Set the current width of the parent grid.
+ *
+ * @method set_dom_grid_width
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.set_dom_grid_width = function(cols) {
+ if (typeof cols === 'undefined') {
+ cols = this.get_highest_occupied_cell().col;
+ }
+
+ var max_cols = (this.options.autogrow_cols ? this.options.max_cols :
+ this.cols);
+
+ cols = Math.min(max_cols, Math.max(cols, this.options.min_cols));
+ this.container_width = cols * this.min_widget_width;
+ this.$el.css('width', this.container_width);
+ return this;
+ };
+
+
+ /**
+ * It generates the neccessary styles to position the widgets.
+ *
+ * @method generate_stylesheet
+ * @param {Number} rows Number of columns.
+ * @param {Number} cols Number of rows.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.generate_stylesheet = function(opts) {
+ var styles = '';
+ var max_size_x = this.options.max_size_x || this.cols;
+ var max_rows = 0;
+ var max_cols = 0;
+ var i;
+ var rules;
+
+ opts || (opts = {});
+ opts.cols || (opts.cols = this.cols);
+ opts.rows || (opts.rows = this.rows);
+ opts.namespace || (opts.namespace = this.options.namespace);
+ opts.widget_base_dimensions ||
+ (opts.widget_base_dimensions = this.options.widget_base_dimensions);
+ opts.widget_margins ||
+ (opts.widget_margins = this.options.widget_margins);
+ opts.min_widget_width = (opts.widget_margins[0] * 2) +
+ opts.widget_base_dimensions[0];
+ opts.min_widget_height = (opts.widget_margins[1] * 2) +
+ opts.widget_base_dimensions[1];
+
+ // don't duplicate stylesheets for the same configuration
+ var serialized_opts = $.param(opts);
+ if ($.inArray(serialized_opts, Gridster.generated_stylesheets) >= 0) {
+ return false;
+ }
+
+ this.generated_stylesheets.push(serialized_opts);
+ Gridster.generated_stylesheets.push(serialized_opts);
+
+ /* generate CSS styles for cols */
+ for (i = opts.cols; i >= 0; i--) {
+ styles += (opts.namespace + ' [data-col="'+ (i + 1) + '"] { left:' +
+ ((i * opts.widget_base_dimensions[0]) +
+ (i * opts.widget_margins[0]) +
+ ((i + 1) * opts.widget_margins[0])) + 'px; }\n');
+ }
+
+ /* generate CSS styles for rows */
+ for (i = opts.rows; i >= 0; i--) {
+ styles += (opts.namespace + ' [data-row="' + (i + 1) + '"] { top:' +
+ ((i * opts.widget_base_dimensions[1]) +
+ (i * opts.widget_margins[1]) +
+ ((i + 1) * opts.widget_margins[1]) ) + 'px; }\n');
+ }
+
+ for (var y = 1; y <= opts.rows; y++) {
+ styles += (opts.namespace + ' [data-sizey="' + y + '"] { height:' +
+ (y * opts.widget_base_dimensions[1] +
+ (y - 1) * (opts.widget_margins[1] * 2)) + 'px; }\n');
+ }
+
+ for (var x = 1; x <= max_size_x; x++) {
+ styles += (opts.namespace + ' [data-sizex="' + x + '"] { width:' +
+ (x * opts.widget_base_dimensions[0] +
+ (x - 1) * (opts.widget_margins[0] * 2)) + 'px; }\n');
+ }
+
+ this.remove_style_tags();
+
+ return this.add_style_tag(styles);
+ };
+
+
+ /**
+ * Injects the given CSS as string to the head of the document.
+ *
+ * @method add_style_tag
+ * @param {String} css The styles to apply.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_style_tag = function(css) {
+ var d = document;
+ var tag = d.createElement('style');
+
+ d.getElementsByTagName('head')[0].appendChild(tag);
+ tag.setAttribute('type', 'text/css');
+
+ if (tag.styleSheet) {
+ tag.styleSheet.cssText = css;
+ } else {
+ tag.appendChild(document.createTextNode(css));
+ }
+
+ this.$style_tags = this.$style_tags.add(tag);
+
+ return this;
+ };
+
+
+ /**
+ * Remove the style tag with the associated id from the head of the document
+ *
+ * @method remove_style_tag
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.remove_style_tags = function() {
+ var all_styles = Gridster.generated_stylesheets;
+ var ins_styles = this.generated_stylesheets;
+
+ this.$style_tags.remove();
+
+ Gridster.generated_stylesheets = $.map(all_styles, function(s) {
+ if ($.inArray(s, ins_styles) === -1) { return s; }
+ });
+ };
+
+
+ /**
+ * Generates a faux grid to collide with it when a widget is dragged and
+ * detect row or column that we want to go.
+ *
+ * @method generate_faux_grid
+ * @param {Number} rows Number of columns.
+ * @param {Number} cols Number of rows.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.generate_faux_grid = function(rows, cols) {
+ this.faux_grid = [];
+ this.gridmap = [];
+ var col;
+ var row;
+ for (col = cols; col > 0; col--) {
+ this.gridmap[col] = [];
+ for (row = rows; row > 0; row--) {
+ this.add_faux_cell(row, col);
+ }
+ }
+ return this;
+ };
+
+
+ /**
+ * Add cell to the faux grid.
+ *
+ * @method add_faux_cell
+ * @param {Number} row The row for the new faux cell.
+ * @param {Number} col The col for the new faux cell.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_faux_cell = function(row, col) {
+ var coords = $({
+ left: this.baseX + ((col - 1) * this.min_widget_width),
+ top: this.baseY + (row -1) * this.min_widget_height,
+ width: this.min_widget_width,
+ height: this.min_widget_height,
+ col: col,
+ row: row,
+ original_col: col,
+ original_row: row
+ }).coords();
+
+ if (!$.isArray(this.gridmap[col])) {
+ this.gridmap[col] = [];
+ }
+
+ this.gridmap[col][row] = false;
+ this.faux_grid.push(coords);
+
+ return this;
+ };
+
+
+ /**
+ * Add rows to the faux grid.
+ *
+ * @method add_faux_rows
+ * @param {Number} rows The number of rows you want to add to the faux grid.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_faux_rows = function(rows) {
+ var actual_rows = this.rows;
+ var max_rows = actual_rows + (rows || 1);
+
+ for (var r = max_rows; r > actual_rows; r--) {
+ for (var c = this.cols; c >= 1; c--) {
+ this.add_faux_cell(r, c);
+ }
+ }
+
+ this.rows = max_rows;
+
+ if (this.options.autogenerate_stylesheet) {
+ this.generate_stylesheet();
+ }
+
+ return this;
+ };
+
+ /**
+ * Add cols to the faux grid.
+ *
+ * @method add_faux_cols
+ * @param {Number} cols The number of cols you want to add to the faux grid.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.add_faux_cols = function(cols) {
+ var actual_cols = this.cols;
+ var max_cols = actual_cols + (cols || 1);
+ max_cols = Math.min(max_cols, this.options.max_cols);
+
+ for (var c = actual_cols + 1; c <= max_cols; c++) {
+ for (var r = this.rows; r >= 1; r--) {
+ this.add_faux_cell(r, c);
+ }
+ }
+
+ this.cols = max_cols;
+
+ if (this.options.autogenerate_stylesheet) {
+ this.generate_stylesheet();
+ }
+
+ return this;
+ };
+
+
+ /**
+ * Recalculates the offsets for the faux grid. You need to use it when
+ * the browser is resized.
+ *
+ * @method recalculate_faux_grid
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.recalculate_faux_grid = function() {
+ var aw = this.$wrapper.width();
+ this.baseX = ($(window).width() - aw) / 2;
+ this.baseY = this.$wrapper.offset().top;
+
+ $.each(this.faux_grid, $.proxy(function(i, coords) {
+ this.faux_grid[i] = coords.update({
+ left: this.baseX + (coords.data.col -1) * this.min_widget_width,
+ top: this.baseY + (coords.data.row -1) * this.min_widget_height
+ });
+ }, this));
+
+ return this;
+ };
+
+
+ /**
+ * Get all widgets in the DOM and register them.
+ *
+ * @method get_widgets_from_DOM
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.get_widgets_from_DOM = function() {
+ var widgets_coords = this.$widgets.map($.proxy(function(i, widget) {
+ var $w = $(widget);
+ return this.dom_to_coords($w);
+ }, this));
+
+ widgets_coords = Gridster.sort_by_row_and_col_asc(widgets_coords);
+
+ var changes = $(widgets_coords).map($.proxy(function(i, wgd) {
+ return this.register_widget(wgd) || null;
+ }, this));
+
+ if (changes.length) {
+ this.$el.trigger('gridster:positionschanged');
+ }
+
+ return this;
+ };
+
+
+ /**
+ * Calculate columns and rows to be set based on the configuration
+ * parameters, grid dimensions, etc ...
+ *
+ * @method generate_grid_and_stylesheet
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.generate_grid_and_stylesheet = function() {
+ var aw = this.$wrapper.width();
+ var max_cols = this.options.max_cols;
+
+ var cols = Math.floor(aw / this.min_widget_width) +
+ this.options.extra_cols;
+
+ var actual_cols = this.$widgets.map(function() {
+ return $(this).attr('data-col');
+ }).get();
+
+ //needed to pass tests with phantomjs
+ actual_cols.length || (actual_cols = [0]);
+
+ var min_cols = Math.max.apply(Math, actual_cols);
+
+ this.cols = Math.max(min_cols, cols, this.options.min_cols);
+
+ if (max_cols !== Infinity && max_cols >= min_cols && max_cols < this.cols) {
+ this.cols = max_cols;
+ }
+
+ // get all rows that could be occupied by the current widgets
+ var max_rows = this.options.extra_rows;
+ this.$widgets.each(function(i, w) {
+ max_rows += (+$(w).attr('data-sizey'));
+ });
+
+ this.rows = Math.max(max_rows, this.options.min_rows);
+
+ this.baseX = ($(window).width() - aw) / 2;
+ this.baseY = this.$wrapper.offset().top;
+
+ if (this.options.autogenerate_stylesheet) {
+ this.generate_stylesheet();
+ }
+
+ return this.generate_faux_grid(this.rows, this.cols);
+ };
+
+ /**
+ * Destroy this gridster by removing any sign of its presence, making it easy to avoid memory leaks
+ *
+ * @method destroy
+ * @param {Boolean} remove If true, remove gridster from DOM.
+ * @return {Object} Returns the instance of the Gridster class.
+ */
+ fn.destroy = function(remove) {
+ this.$el.removeData('gridster');
+
+ // remove bound callback on window resize
+ $(window).unbind('.gridster');
+
+ if (this.drag_api) {
+ this.drag_api.destroy();
+ }
+
+ this.remove_style_tags();
+
+ remove && this.$el.remove();
+
+ return this;
+ };
+
+
+ //jQuery adapter
+ $.fn.gridster = function(options) {
+ return this.each(function() {
+ if (! $(this).data('gridster')) {
+ $(this).data('gridster', new Gridster( this, options ));
+ }
+ });
+ };
+
+ return Gridster;
+
+}));
+
+;(function(root, factory) {
+
+ if (typeof define === 'function' && define.amd) {
+ define(['jquery', 'gridster'], factory);
+ } else {
+ root.Gridster = factory(root.$ || root.jQuery, root.Gridster);
+ }
+
+}(this, function($, Gridster) {
+
+ var fn = Gridster.prototype;
+
+ fn.widgets_in_col = function(col) {
+ if (!this.gridmap[col]) {
+ return false;
+ }
+
+ for (var i = this.gridmap[col].length - 1; i >= 0; i--) {
+ if (this.is_widget(col, i) !== false) {
+ return true;
+ }
+ }
+
+ return false;
+ };
+
+ fn.widgets_in_row = function(row) {
+ for (var i = this.gridmap.length; i >= 1; i--) {
+ if (this.is_widget(i, row) !== false) {
+ return true;
+ }
+ }
+
+ return false;
+ };
+
+
+ fn.widgets_in_range = function(col1, row1, col2, row2) {
+ var valid_cols = [];
+ var valid_rows = [];
+ var $widgets = $([]);
+ var c, r, $w, wgd;
+
+ for (c = col2; c >= col1; c--) {
+ for (r = row2; r >= row1; r--) {
+ $w = this.is_widget(c, r);
+
+ if ($w !== false) {
+ wgd = $w.data('coords').grid;
+ if (wgd.col >= col1 && wgd.col <= col2 &&
+ wgd.row >= row1 && wgd.row <= row2
+ ) {
+ $widgets = $widgets.add($w);
+ }
+ }
+ }
+ }
+
+ return $widgets;
+ };
+
+
+ fn.get_bottom_most_occupied_cell = function() {
+ var row = 0;
+ var col = 0;
+ this.for_each_cell(function($el, c, r) {
+ if ($el && r > row) {
+ row = r;
+ col = c;
+ }
+ });
+
+ return {col: col, row: row};
+ };
+
+
+ fn.get_right_most_occupied_cell = function() {
+ var row = 0;
+ var col = 0;
+ this.for_each_cell(function($el, c, r) {
+ if ($el) {
+ row = r;
+ col = c;
+ return false;
+ }
+ });
+
+ return {col: col, row: row};
+ };
+
+
+ fn.for_each_cell = function(callback, gridmap) {
+ gridmap || (gridmap = this.gridmap);
+ var cols = gridmap.length;
+ var rows = gridmap[1].length;
+
+ cols_iter:
+ for (var c = cols - 1; c >= 1; c--) {
+ for (var r = rows - 1; r >= 1; r--) {
+ var $el = gridmap[c] && gridmap[c][r];
+ if (callback) {
+ if (callback.call(this, $el, c, r) === false) {
+ break cols_iter;
+ } else { continue; }
+ }
+ }
+ }
+ };
+
+
+ fn.next_position_in_range = function(size_x, size_y, max_rows) {
+ size_x || (size_x = 1);
+ size_y || (size_y = 1);
+ var ga = this.gridmap;
+ var cols_l = ga.length;
+ var valid_pos = [];
+ var rows_l;
+
+ for (var c = 1; c < cols_l; c++) {
+ rows_l = max_rows || ga[c].length;
+ for (var r = 1; r <= rows_l; r++) {
+ var can_move_to = this.can_move_to({
+ size_x: size_x,
+ size_y: size_y
+ }, c, r, max_rows);
+
+ if (can_move_to) {
+ valid_pos.push({
+ col: c,
+ row: r,
+ size_y: size_y,
+ size_x: size_x
+ });
+ }
+ }
+ }
+
+ if (valid_pos.length >= 1) {
+ return Gridster.sort_by_col_asc(valid_pos)[0];
+ }
+
+ return false;
+ };
+
+
+ fn.closest_to_right = function(col, row) {
+ if (!this.gridmap[col]) { return false; }
+ var cols_l = this.gridmap.length - 1;
+
+ for (var c = col; c <= cols_l; c++) {
+ if (this.gridmap[c][row]) {
+ return { col: c, row: row };
+ }
+ }
+
+ return false;
+ };
+
+
+ fn.closest_to_left = function(col, row) {
+ var cols_l = this.gridmap.length - 1;
+ if (!this.gridmap[col]) { return false; }
+
+ for (var c = col; c >= 1; c--) {
+ if (this.gridmap[c][row]) {
+ return { col: c, row: row };
+ }
+ }
+
+ return false;
+ };
+
+ return Gridster;
+
+}));
diff --git a/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.with-extras.min.js b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.with-extras.min.js
new file mode 100644
index 000000000..81be30e5a
--- /dev/null
+++ b/ajax/libs/jquery.gridster/0.5.3/jquery.gridster.with-extras.min.js
@@ -0,0 +1,2 @@
+/*! gridster.js - v0.5.3 - 2014-07-04 - * http://gridster.net/ - Copyright (c) 2014 ducksboard; Licensed MIT */ (function(t,i){"function"==typeof define&&define.amd?define("gridster-coords",["jquery"],i):t.GridsterCoords=i(t.$||t.jQuery)})(this,function(t){function i(i){return i[0]&&t.isPlainObject(i[0])?this.data=i[0]:this.el=i,this.isCoords=!0,this.coords={},this.init(),this}var e=i.prototype;return e.init=function(){this.set(),this.original_coords=this.get()},e.set=function(t,i){var e=this.el;if(e&&!t&&(this.data=e.offset(),this.data.width=e.width(),this.data.height=e.height()),e&&t&&!i){var s=e.offset();this.data.top=s.top,this.data.left=s.left}var r=this.data;return r.left===void 0&&(r.left=r.x1),r.top===void 0&&(r.top=r.y1),this.coords.x1=r.left,this.coords.y1=r.top,this.coords.x2=r.left+r.width,this.coords.y2=r.top+r.height,this.coords.cx=r.left+r.width/2,this.coords.cy=r.top+r.height/2,this.coords.width=r.width,this.coords.height=r.height,this.coords.el=e||!1,this},e.update=function(i){if(!i&&!this.el)return this;if(i){var e=t.extend({},this.data,i);return this.data=e,this.set(!0,!0)}return this.set(!0),this},e.get=function(){return this.coords},e.destroy=function(){this.el.removeData("coords"),delete this.el},t.fn.coords=function(){if(this.data("coords"))return this.data("coords");var t=new i(this,arguments[0]);return this.data("coords",t),t},i}),function(t,i){"function"==typeof define&&define.amd?define("gridster-collision",["jquery","gridster-coords"],i):t.GridsterCollision=i(t.$||t.jQuery,t.GridsterCoords)}(this,function(t){function i(i,s,r){this.options=t.extend(e,r),this.$element=i,this.last_colliders=[],this.last_colliders_coords=[],this.set_colliders(s),this.init()}var e={colliders_context:document.body,overlapping_region:"C"};i.defaults=e;var s=i.prototype;return s.init=function(){this.find_collisions()},s.overlaps=function(t,i){var e=!1,s=!1;return(i.x1>=t.x1&&i.x1<=t.x2||i.x2>=t.x1&&i.x2<=t.x2||t.x1>=i.x1&&t.x2<=i.x2)&&(e=!0),(i.y1>=t.y1&&i.y1<=t.y2||i.y2>=t.y1&&i.y2<=t.y2||t.y1>=i.y1&&t.y2<=i.y2)&&(s=!0),e&&s},s.detect_overlapping_region=function(t,i){var e="",s="";return t.y1>i.cy&&t.y1i.y1&&t.y2i.cx&&t.x1i.x1&&t.x2o;o++)-1===t.inArray(r[o],i)&&e.call(this,r[o]);for(var n=0,h=i.length;h>n;n++)-1===t.inArray(i[n],r)&&s.call(this,i[n])},s.find_collisions=function(i){for(var e=this,s=this.options.overlapping_region,r=[],o=[],a=this.colliders||this.$colliders,n=a.length,h=e.$element.coords().update(i||!1).get();n--;){var _=e.$colliders?t(a[n]):a[n],d=_.isCoords?_:_.coords(),l=d.get(),c=e.overlaps(h,l);if(c){var g=e.detect_overlapping_region(h,l);if(g===s||"all"===s){var p=e.calculate_overlapped_area_coords(h,l),u=e.calculate_overlapped_area(p),f={area:u,area_coords:p,region:g,coords:l,player_coords:h,el:_};e.options.on_overlap&&e.options.on_overlap.call(this,f),r.push(d),o.push(f)}}}return(e.options.on_overlap_stop||e.options.on_overlap_start)&&this.manage_colliders_start_stop(r,e.options.on_overlap_start,e.options.on_overlap_stop),this.last_colliders_coords=r,o},s.get_closest_colliders=function(t){var i=this.find_collisions(t);return i.sort(function(t,i){return"C"===t.region&&"C"===i.region?t.coords.y1this.player_max_left?o=this.player_max_left:this.player_min_left>o&&(o=this.player_min_left)),{position:{left:o,top:a},pointer:{left:e.left,top:e.top,diff_left:s+(t(window).scrollLeft()-this.win_offset_x),diff_top:r+(t(window).scrollTop()-this.win_offset_y)}}},h.get_drag_data=function(t){var i=this.get_offset(t);return i.$player=this.$player,i.$helper=this.helper?this.$helper:this.$player,i},h.set_limits=function(t){return t||(t=this.$container.width()),this.player_max_left=t-this.player_width+-this.options.offset_left,this.options.container_width=t,this},h.scroll_in=function(i,e){var o,a=r[i],h=50,_=30,d="x"===i,l=d?this.window_width:this.window_height,c=d?t(document).width():t(document).height(),g=d?this.$player.width():this.$player.height(),p=s["scroll"+n(a)](),u=p,f=u+l,w=f-h,m=u+h,y=u+e.pointer[a],v=c-l+g;return y>=w&&(o=p+_,v>o&&(s["scroll"+n(a)](o),this["scroll_offset_"+i]+=_)),m>=y&&(o=p-_,o>0&&(s["scroll"+n(a)](o),this["scroll_offset_"+i]-=_)),this},h.manage_scroll=function(t){this.scroll_in("x",t),this.scroll_in("y",t)},h.calculate_dimensions=function(){this.window_height=s.height(),this.window_width=s.width()},h.drag_handler=function(i){if(i.target.nodeName,!this.disabled&&(1===i.which||o)&&!this.ignore_drag(i)){var e=this,s=!0;return this.$player=t(i.currentTarget),this.el_init_pos=this.get_actual_pos(this.$player),this.mouse_init_pos=this.get_mouse_pos(i),this.offsetY=this.mouse_init_pos.top-this.el_init_pos.top,this.$document.on(a.move,function(t){var i=e.get_mouse_pos(t),r=Math.abs(i.left-e.mouse_init_pos.left),o=Math.abs(i.top-e.mouse_init_pos.top);return r>e.options.distance||o>e.options.distance?s?(s=!1,e.on_dragstart.call(e,t),!1):(e.is_dragging===!0&&e.on_dragmove.call(e,t),!1):!1}),o?void 0:!1}},h.on_dragstart=function(i){if(i.preventDefault(),this.is_dragging)return this;this.drag_start=this.is_dragging=!0;var e=this.$container.offset();return this.baseX=Math.round(e.left),this.baseY=Math.round(e.top),this.initial_container_width=this.options.container_width||this.$container.width(),"clone"===this.options.helper?(this.$helper=this.$player.clone().appendTo(this.$container).addClass("helper"),this.helper=!0):this.helper=!1,this.win_offset_y=t(window).scrollTop(),this.win_offset_x=t(window).scrollLeft(),this.scroll_offset_y=0,this.scroll_offset_x=0,this.el_init_offset=this.$player.offset(),this.player_width=this.$player.width(),this.player_height=this.$player.height(),this.set_limits(this.options.container_width),this.options.start&&this.options.start.call(this.$player,i,this.get_drag_data(i)),!1},h.on_dragmove=function(t){var i=this.get_drag_data(t);this.options.autoscroll&&this.manage_scroll(i),this.options.move_element&&(this.helper?this.$helper:this.$player).css({position:"absolute",left:i.position.left,top:i.position.top});var e=this.last_position||i.position;return i.prev_position=e,this.options.drag&&this.options.drag.call(this.$player,t,i),this.last_position=i.position,!1},h.on_dragstop=function(t){var i=this.get_drag_data(t);return this.drag_start=!1,this.options.stop&&this.options.stop.call(this.$player,t,i),this.helper&&this.options.remove_helper&&this.$helper.remove(),!1},h.on_select_start=function(t){return this.disabled||this.ignore_drag(t)?void 0:!1},h.enable=function(){this.disabled=!1},h.disable=function(){this.disabled=!0},h.destroy=function(){this.disable(),this.$container.off(".gridster-draggable"),this.$document.off(".gridster-draggable"),t(window).off(".gridster-draggable"),t.removeData(this.$container,"drag")},h.ignore_drag=function(i){return this.options.handle?!t(i.target).is(this.options.handle):t.isFunction(this.options.ignore_dragging)?this.options.ignore_dragging(i):t(i.target).is(this.options.ignore_dragging.join(", "))},t.fn.drag=function(t){return new i(this,t)},i}),function(t,i){"function"==typeof define&&define.amd?define(["jquery","gridster-draggable","gridster-collision"],i):t.Gridster=i(t.$||t.jQuery,t.GridsterDraggable,t.GridsterCollision)}(this,function(t,i){function e(i,e){this.options=t.extend(!0,{},s,e),this.$el=t(i),this.$wrapper=this.$el.parent(),this.$widgets=this.$el.children(this.options.widget_selector).addClass("gs-w"),this.widgets=[],this.$changed=t([]),this.wrapper_width=this.$wrapper.width(),this.min_widget_width=2*this.options.widget_margins[0]+this.options.widget_base_dimensions[0],this.min_widget_height=2*this.options.widget_margins[1]+this.options.widget_base_dimensions[1],this.generated_stylesheets=[],this.$style_tags=t([]),this.options.auto_init&&this.init()}var s={namespace:"",widget_selector:"li",widget_margins:[10,10],widget_base_dimensions:[400,225],extra_rows:0,extra_cols:0,min_cols:1,max_cols:1/0,min_rows:15,max_size_x:!1,autogrow_cols:!1,autogenerate_stylesheet:!0,avoid_overlapped_widgets:!0,auto_init:!0,serialize_params:function(t,i){return{col:i.col,row:i.row,size_x:i.size_x,size_y:i.size_y}},collision:{},draggable:{items:".gs-w",distance:4,ignore_dragging:i.defaults.ignore_dragging.slice(0)},resize:{enabled:!1,axes:["both"],handle_append_to:"",handle_class:"gs-resize-handle",max_size:[1/0,1/0],min_size:[1,1]}};e.defaults=s,e.generated_stylesheets=[],e.sort_by_row_asc=function(i){return i=i.sort(function(i,e){return i.row||(i=t(i).coords().grid,e=t(e).coords().grid),i.row>e.row?1:-1})},e.sort_by_row_and_col_asc=function(t){return t=t.sort(function(t,i){return t.row>i.row||t.row===i.row&&t.col>i.col?1:-1})},e.sort_by_col_asc=function(t){return t=t.sort(function(t,i){return t.col>i.col?1:-1})},e.sort_by_row_desc=function(t){return t=t.sort(function(t,i){return t.row+t.size_yn&&this.add_faux_rows(Math.max(e-n,0));var d=o+i-1;d>this.cols&&this.add_faux_cols(d-this.cols);var l={col:_,row:r.row,size_x:i,size_y:e};return this.mutate_widget_in_gridmap(t,r,l),this.set_dom_grid_height(),this.set_dom_grid_width(),s&&s.call(this,l.size_x,l.size_y),t},r.mutate_widget_in_gridmap=function(i,e,s){e.size_x;var r=e.size_y,o=this.get_cells_occupied(e),a=this.get_cells_occupied(s),n=[];t.each(o.cols,function(i,e){-1===t.inArray(e,a.cols)&&n.push(e)});var h=[];t.each(a.cols,function(i,e){-1===t.inArray(e,o.cols)&&h.push(e)});var _=[];t.each(o.rows,function(i,e){-1===t.inArray(e,a.rows)&&_.push(e)});var d=[];if(t.each(a.rows,function(i,e){-1===t.inArray(e,o.rows)&&d.push(e)}),this.remove_from_gridmap(e),h.length){var l=[s.col,s.row,s.size_x,Math.min(r,s.size_y),i];this.empty_cells.apply(this,l)}if(d.length){var c=[s.col,s.row,s.size_x,s.size_y,i];this.empty_cells.apply(this,c)}if(e.col=s.col,e.row=s.row,e.size_x=s.size_x,e.size_y=s.size_y,this.add_to_gridmap(s,i),i.removeClass("player-revert"),i.data("coords").update({width:s.size_x*this.options.widget_base_dimensions[0]+2*(s.size_x-1)*this.options.widget_margins[0],height:s.size_y*this.options.widget_base_dimensions[1]+2*(s.size_y-1)*this.options.widget_margins[1]}),i.attr({"data-col":s.col,"data-row":s.row,"data-sizex":s.size_x,"data-sizey":s.size_y}),n.length){var g=[n[0],s.row,n.length,Math.min(r,s.size_y),i];this.remove_empty_cells.apply(this,g)}if(_.length){var p=[s.col,s.row,s.size_x,s.size_y,i];this.remove_empty_cells.apply(this,p)}return this.move_widget_up(i),this},r.empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e-r,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,s){var o=t(s).coords().grid;if(e+r-1>=o.row){var a=e+r-o.row;this.move_widget_down(t(s),a)}},this)),this.set_dom_grid_height(),this},r.remove_empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,e){this.move_widget_up(t(e),r)},this)),this.set_dom_grid_height(),this},r.next_position=function(t,i){t||(t=1),i||(i=1);for(var s,r=this.gridmap,o=r.length,a=[],n=1;o>n;n++){s=r[n].length;for(var h=1;s>=h;h++){var _=this.can_move_to({size_x:t,size_y:i},n,h);_&&a.push({col:n,row:h,size_y:i,size_x:t})}}return a.length?e.sort_by_row_and_col_asc(a)[0]:!1},r.remove_widget=function(i,e,s){var r=i instanceof t?i:t(i),o=r.coords().grid;t.isFunction(e)&&(s=e,e=!1),this.cells_occupied_by_placeholder={},this.$widgets=this.$widgets.not(r);var a=this.widgets_below(r);return this.remove_from_gridmap(o),r.fadeOut(t.proxy(function(){r.remove(),e||a.each(t.proxy(function(i,e){this.move_widget_up(t(e),o.size_y)},this)),this.set_dom_grid_height(),s&&s.call(this,i)},this)),this},r.remove_all_widgets=function(i){return this.$widgets.each(t.proxy(function(t,e){this.remove_widget(e,!0,i)},this)),this},r.serialize=function(i){return i||(i=this.$widgets),i.map(t.proxy(function(i,e){var s=t(e);return this.options.serialize_params(s,s.coords().grid)},this))},r.serialize_changed=function(){return this.serialize(this.$changed)},r.dom_to_coords=function(t){return{col:parseInt(t.attr("data-col"),10),row:parseInt(t.attr("data-row"),10),size_x:parseInt(t.attr("data-sizex"),10)||1,size_y:parseInt(t.attr("data-sizey"),10)||1,max_size_x:parseInt(t.attr("data-max-sizex"),10)||!1,max_size_y:parseInt(t.attr("data-max-sizey"),10)||!1,min_size_x:parseInt(t.attr("data-min-sizex"),10)||!1,min_size_y:parseInt(t.attr("data-min-sizey"),10)||!1,el:t}},r.register_widget=function(i){var e=i instanceof jQuery,s=e?this.dom_to_coords(i):i;e||(i=s.el);var r=this.can_go_widget_up(s);return r&&(s.row=r,i.attr("data-row",r),this.$el.trigger("gridster:positionchanged",[s])),this.options.avoid_overlapped_widgets&&!this.can_move_to({size_x:s.size_x,size_y:s.size_y},s.col,s.row)&&(t.extend(s,this.next_position(s.size_x,s.size_y)),i.attr({"data-col":s.col,"data-row":s.row,"data-sizex":s.size_x,"data-sizey":s.size_y})),i.data("coords",i.coords()),i.data("coords").grid=s,this.add_to_gridmap(s,i),this.options.resize.enabled&&this.add_resize_handle(i),!!r},r.update_widget_position=function(t,i){return this.for_each_cell_occupied(t,function(t,e){return this.gridmap[t]?(this.gridmap[t][e]=i,void 0):this}),this},r.remove_from_gridmap=function(t){return this.update_widget_position(t,!1)},r.add_to_gridmap=function(i,e){if(this.update_widget_position(i,e||i.el),i.el){var s=this.widgets_below(i.el);s.each(t.proxy(function(i,e){this.move_widget_up(t(e))},this))}},r.draggable=function(){var i=this,e=t.extend(!0,{},this.options.draggable,{offset_left:this.options.widget_margins[0],offset_top:this.options.widget_margins[1],container_width:this.cols*this.min_widget_width,limit:!0,start:function(e,s){i.$widgets.filter(".player-revert").removeClass("player-revert"),i.$player=t(this),i.$helper=t(s.$helper),i.helper=!i.$helper.is(i.$player),i.on_start_drag.call(i,e,s),i.$el.trigger("gridster:dragstart")},stop:function(t,e){i.on_stop_drag.call(i,t,e),i.$el.trigger("gridster:dragstop")},drag:throttle(function(t,e){i.on_drag.call(i,t,e),i.$el.trigger("gridster:drag")},60)});return this.drag_api=this.$el.drag(e),this},r.resizable=function(){return this.resize_api=this.$el.drag({items:"."+this.options.resize.handle_class,offset_left:this.options.widget_margins[0],container_width:this.container_width,move_element:!1,resize:!0,limit:this.options.autogrow_cols?!1:!0,start:t.proxy(this.on_start_resize,this),stop:t.proxy(function(i,e){delay(t.proxy(function(){this.on_stop_resize(i,e)},this),120)},this),drag:throttle(t.proxy(this.on_resize,this),60)}),this},r.setup_resize=function(){this.resize_handle_class=this.options.resize.handle_class;var i=this.options.resize.axes,e='';return this.resize_handle_tpl=t.map(i,function(t){return e.replace("{type}",t)}).join(""),t.isArray(this.options.draggable.ignore_dragging)&&this.options.draggable.ignore_dragging.push("."+this.resize_handle_class),this},r.on_start_drag=function(i,e){this.$helper.add(this.$player).add(this.$wrapper).addClass("dragging"),this.highest_col=this.get_highest_occupied_cell().col,this.$player.addClass("player"),this.player_grid_data=this.$player.coords().grid,this.placeholder_grid_data=t.extend({},this.player_grid_data),this.set_dom_grid_height(this.$el.height()+this.player_grid_data.size_y*this.min_widget_height),this.set_dom_grid_width(this.cols);var s=this.player_grid_data.size_x,r=this.cols-this.highest_col;this.options.autogrow_cols&&s>=r&&this.add_faux_cols(Math.min(s-r,1));var o=this.faux_grid,a=this.$player.data("coords").coords;this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data),this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.last_cols=[],this.last_rows=[],this.collision_api=this.$helper.collision(o,this.options.collision),this.$preview_holder=t("<"+this.$player.get(0).tagName+" />",{"class":"preview-holder","data-row":this.$player.attr("data-row"),"data-col":this.$player.attr("data-col"),css:{width:a.width,height:a.height}}).appendTo(this.$el),this.options.draggable.start&&this.options.draggable.start.call(this,i,e)},r.on_drag=function(t,i){if(null===this.$player)return!1;var e={left:i.position.left+this.baseX,top:i.position.top+this.baseY};if(this.options.autogrow_cols){var s=this.placeholder_grid_data.col+this.placeholder_grid_data.size_x-1;s>=this.cols-1&&this.options.max_cols>=this.cols+1&&(this.add_faux_cols(1),this.set_dom_grid_width(this.cols+1),this.drag_api.set_limits(this.container_width)),this.collision_api.set_colliders(this.faux_grid)}this.colliders_data=this.collision_api.get_closest_colliders(e),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.helper&&this.$player&&this.$player.css({left:i.position.left,top:i.position.top}),this.options.draggable.drag&&this.options.draggable.drag.call(this,t,i)},r.on_stop_drag=function(t,i){this.$helper.add(this.$player).add(this.$wrapper).removeClass("dragging"),i.position.left=i.position.left+this.baseX,i.position.top=i.position.top+this.baseY,this.colliders_data=this.collision_api.get_closest_colliders(i.position),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.$player.addClass("player-revert").removeClass("player").attr({"data-col":this.placeholder_grid_data.col,"data-row":this.placeholder_grid_data.row}).css({left:"",top:""}),this.$changed=this.$changed.add(this.$player),this.cells_occupied_by_player=this.get_cells_occupied(this.placeholder_grid_data),this.set_cells_player_occupies(this.placeholder_grid_data.col,this.placeholder_grid_data.row),this.$player.coords().grid.row=this.placeholder_grid_data.row,this.$player.coords().grid.col=this.placeholder_grid_data.col,this.options.draggable.stop&&this.options.draggable.stop.call(this,t,i),this.$preview_holder.remove(),this.$player=null,this.$helper=null,this.placeholder_grid_data={},this.player_grid_data={},this.cells_occupied_by_placeholder={},this.cells_occupied_by_player={},this.set_dom_grid_height(),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.cols*this.min_widget_width)},r.on_start_resize=function(i,e){this.$resized_widget=e.$player.closest(".gs-w"),this.resize_coords=this.$resized_widget.coords(),this.resize_wgd=this.resize_coords.grid,this.resize_initial_width=this.resize_coords.coords.width,this.resize_initial_height=this.resize_coords.coords.height,this.resize_initial_sizex=this.resize_coords.grid.size_x,this.resize_initial_sizey=this.resize_coords.grid.size_y,this.resize_initial_col=this.resize_coords.grid.col,this.resize_last_sizex=this.resize_initial_sizex,this.resize_last_sizey=this.resize_initial_sizey,this.resize_max_size_x=Math.min(this.resize_wgd.max_size_x||this.options.resize.max_size[0],this.options.max_cols-this.resize_initial_col+1),this.resize_max_size_y=this.resize_wgd.max_size_y||this.options.resize.max_size[1],this.resize_min_size_x=this.resize_wgd.min_size_x||this.options.resize.min_size[0]||1,this.resize_min_size_y=this.resize_wgd.min_size_y||this.options.resize.min_size[1]||1,this.resize_initial_last_col=this.get_highest_occupied_cell().col,this.set_dom_grid_width(this.cols),this.resize_dir={right:e.$player.is("."+this.resize_handle_class+"-x"),bottom:e.$player.is("."+this.resize_handle_class+"-y")},this.$resized_widget.css({"min-width":this.options.widget_base_dimensions[0],"min-height":this.options.widget_base_dimensions[1]});var s=this.$resized_widget.get(0).tagName;this.$resize_preview_holder=t("<"+s+" />",{"class":"preview-holder resize-preview-holder","data-row":this.$resized_widget.attr("data-row"),"data-col":this.$resized_widget.attr("data-col"),css:{width:this.resize_initial_width,height:this.resize_initial_height}}).appendTo(this.$el),this.$resized_widget.addClass("resizing"),this.options.resize.start&&this.options.resize.start.call(this,i,e,this.$resized_widget),this.$el.trigger("gridster:resizestart")},r.on_stop_resize=function(i,e){this.$resized_widget.removeClass("resizing").css({width:"",height:""}),delay(t.proxy(function(){this.$resize_preview_holder.remove().css({"min-width":"","min-height":""}),this.options.resize.stop&&this.options.resize.stop.call(this,i,e,this.$resized_widget),this.$el.trigger("gridster:resizestop")},this),300),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.cols*this.min_widget_width)},r.on_resize=function(t,i){var e,s=i.pointer.diff_left,r=i.pointer.diff_top,o=this.options.widget_base_dimensions[0],a=this.options.widget_base_dimensions[1],n=this.options.widget_margins[0],h=this.options.widget_margins[1],_=this.resize_max_size_x,d=this.resize_min_size_x,l=this.resize_max_size_y,c=this.resize_min_size_y,g=this.options.autogrow_cols,p=1/0,u=1/0,f=Math.ceil(s/(o+2*n)-.2),w=Math.ceil(r/(a+2*h)-.2),m=Math.max(1,this.resize_initial_sizex+f),y=Math.max(1,this.resize_initial_sizey+w),v=this.container_width/this.min_widget_width-this.resize_initial_col+1,z=v*this.min_widget_width-2*n;if(m=Math.max(Math.min(m,_),d),m=Math.min(v,m),e=_*o+2*(m-1)*n,p=Math.min(e,z),min_width=d*o+2*(m-1)*n,y=Math.max(Math.min(y,l),c),u=l*a+2*(y-1)*h,min_height=c*a+2*(y-1)*h,this.resize_dir.right?y=this.resize_initial_sizey:this.resize_dir.bottom&&(m=this.resize_initial_sizex),g){var x=this.resize_initial_col+m-1;g&&x>=this.resize_initial_last_col&&(this.set_dom_grid_width(Math.max(x+1,this.cols)),x>this.cols&&this.add_faux_cols(x-this.cols))}var $={};!this.resize_dir.bottom&&($.width=Math.max(Math.min(this.resize_initial_width+s,p),min_width)),!this.resize_dir.right&&($.height=Math.max(Math.min(this.resize_initial_height+r,u),min_height)),this.$resized_widget.css($),(m!==this.resize_last_sizex||y!==this.resize_last_sizey)&&(this.resize_widget(this.$resized_widget,m,y),this.set_dom_grid_width(this.cols),this.$resize_preview_holder.css({width:"",height:""}).attr({"data-row":this.$resized_widget.attr("data-row"),"data-sizex":m,"data-sizey":y})),this.options.resize.resize&&this.options.resize.resize.call(this,t,i,this.$resized_widget),this.$el.trigger("gridster:resize"),this.resize_last_sizex=m,this.resize_last_sizey=y},r.on_overlapped_column_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_columns(this.colliders_data[0].el.data.col),o=this.last_cols.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_cols)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_cols[s],r)&&(e||t.noop).call(this,this.last_cols[s]);return this.last_cols=r,this},r.on_overlapped_row_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_rows(this.colliders_data[0].el.data.row),o=this.last_rows.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_rows)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_rows[s],r)&&(e||t.noop).call(this,this.last_rows[s]);this.last_rows=r},r.set_player=function(t,i,e){var s=this;e||this.empty_cells_player_occupies();var r=e?{col:t}:s.colliders_data[0].el.data,o=r.col,a=i||r.row;this.player_grid_data={col:o,row:a,size_y:this.player_grid_data.size_y,size_x:this.player_grid_data.size_x},this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data);var n=this.get_widgets_overlapped(this.player_grid_data),h=this.widgets_constraints(n);if(this.manage_movements(h.can_go_up,o,a),this.manage_movements(h.can_not_go_up,o,a),!n.length){var _=this.can_go_player_up(this.player_grid_data);_!==!1&&(a=_),this.set_placeholder(o,a)}return{col:o,row:a}},r.widgets_constraints=function(i){var s,r=t([]),o=[],a=[];return i.each(t.proxy(function(i,e){var s=t(e),n=s.coords().grid;this.can_go_widget_up(n)?(r=r.add(s),o.push(n)):a.push(n)},this)),s=i.not(r),{can_go_up:e.sort_by_row_asc(o),can_not_go_up:e.sort_by_row_desc(a)}},r.manage_movements=function(i,e,s){return t.each(i,t.proxy(function(t,i){var r=i,o=r.el,a=this.can_go_widget_up(r);if(a)this.move_widget_to(o,a),this.set_placeholder(e,a+r.size_y);else{var n=this.can_go_player_up(this.player_grid_data);if(!n){var h=s+this.player_grid_data.size_y-r.row;this.move_widget_down(o,h),this.set_placeholder(e,s)}}},this)),this},r.is_player=function(t,i){if(i&&!this.gridmap[t])return!1;var e=i?this.gridmap[t][i]:t;return e&&(e.is(this.$player)||e.is(this.$helper))},r.is_player_in=function(i,e){var s=this.cells_occupied_by_player||{};return t.inArray(i,s.cols)>=0&&t.inArray(e,s.rows)>=0},r.is_placeholder_in=function(i,e){var s=this.cells_occupied_by_placeholder||{};return this.is_placeholder_in_col(i)&&t.inArray(e,s.rows)>=0},r.is_placeholder_in_col=function(i){var e=this.cells_occupied_by_placeholder||[];return t.inArray(i,e.cols)>=0},r.is_empty=function(t,i){return this.gridmap[t]!==void 0?this.gridmap[t][i]!==void 0&&this.gridmap[t][i]===!1?!0:!1:!0},r.is_occupied=function(t,i){return this.gridmap[t]?this.gridmap[t][i]?!0:!1:!1},r.is_widget=function(t,i){var e=this.gridmap[t];return e?(e=e[i],e?e:!1):!1},r.is_widget_under_player=function(t,i){return this.is_widget(t,i)?this.is_player_in(t,i):!1},r.get_widgets_under_player=function(i){i||(i=this.cells_occupied_by_player||{cols:[],rows:[]});var e=t([]);return t.each(i.cols,t.proxy(function(s,r){t.each(i.rows,t.proxy(function(t,i){this.is_widget(r,i)&&(e=e.add(this.gridmap[r][i]))},this))},this)),e},r.set_placeholder=function(i,e){var s=t.extend({},this.placeholder_grid_data),r=this.widgets_below({col:s.col,row:s.row,size_y:s.size_y,size_x:s.size_x}),o=i+s.size_x-1;o>this.cols&&(i-=o-i);var a=e>this.placeholder_grid_data.row,n=this.placeholder_grid_data.col!==i;this.placeholder_grid_data.col=i,this.placeholder_grid_data.row=e,this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.$preview_holder.attr({"data-row":e,"data-col":i}),(a||n)&&r.each(t.proxy(function(e,r){this.move_widget_up(t(r),this.placeholder_grid_data.col-i+s.size_y)},this));var h=this.get_widgets_under_player(this.cells_occupied_by_placeholder);h.length&&h.each(t.proxy(function(i,r){var o=t(r);this.move_widget_down(o,e+s.size_y-o.data("coords").grid.row)},this))},r.can_go_player_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4,o=this.get_widgets_under_player();return this.for_each_column_occupied(t,function(t){var a=this.gridmap[t],n=i+1;for(s[t]=[];--n>0&&(this.is_empty(t,n)||this.is_player(t,n)||this.is_widget(t,n)&&a[n].is(o));)s[t].push(n),r=r>n?n:r;return 0===s[t].length?(e=!1,!0):(s[t].sort(function(t,i){return t-i}),void 0)}),e?this.get_valid_rows(t,s,r):!1},r.can_go_widget_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4;return this.for_each_column_occupied(t,function(o){var a=this.gridmap[o];
+s[o]=[];for(var n=i+1;--n>0&&(!this.is_widget(o,n)||this.is_player_in(o,n)||a[n].is(t.el));)this.is_player(o,n)||this.is_placeholder_in(o,n)||this.is_player_in(o,n)||s[o].push(n),r>n&&(r=n);return 0===s[o].length?(e=!1,!0):(s[o].sort(function(t,i){return t-i}),void 0)}),e?this.get_valid_rows(t,s,r):!1},r.get_valid_rows=function(i,e,s){for(var r=i.row,o=i.row+i.size_y-1,a=i.size_y,n=s-1,h=[];o>=++n;){var _=!0;if(t.each(e,function(i,e){t.isArray(e)&&-1===t.inArray(n,e)&&(_=!1)}),_===!0&&(h.push(n),h.length===a))break}var d=!1;return 1===a?h[0]!==r&&(d=h[0]||!1):h[0]!==r&&(d=this.get_consecutive_numbers_index(h,a)),d},r.get_consecutive_numbers_index=function(t,i){for(var e=t.length,s=[],r=!0,o=-1,a=0;e>a;a++){if(r||t[a]===o+1){if(s.push(a),s.length===i)break;r=!1}else s=[],r=!0;o=t[a]}return s.length>=i?t[s[0]]:!1},r.get_widgets_overlapped=function(){var i=t([]),e=[],s=this.cells_occupied_by_player.rows.slice(0);return s.reverse(),t.each(this.cells_occupied_by_player.cols,t.proxy(function(r,o){t.each(s,t.proxy(function(s,r){if(!this.gridmap[o])return!0;var a=this.gridmap[o][r];this.is_occupied(o,r)&&!this.is_player(a)&&-1===t.inArray(a,e)&&(i=i.add(a),e.push(a))},this))},this)),i},r.on_start_overlapping_column=function(t){this.set_player(t,!1)},r.on_start_overlapping_row=function(t){this.set_player(!1,t)},r.on_stop_overlapping_column=function(t){this.set_player(t,!1);var i=this;this.for_each_widget_below(t,this.cells_occupied_by_player.rows[0],function(){i.move_widget_up(this,i.player_grid_data.size_y)})},r.on_stop_overlapping_row=function(t){this.set_player(!1,t);for(var i=this,e=this.cells_occupied_by_player.cols,s=0,r=e.length;r>s;s++)this.for_each_widget_below(e[s],t,function(){i.move_widget_up(this,i.player_grid_data.size_y)})},r.move_widget_to=function(i,e){var s=this,r=i.coords().grid;e-r.row;var o=this.widgets_below(i),a=this.can_move_to(r,r.col,e,i);return a===!1?!1:(this.remove_from_gridmap(r),r.row=e,this.add_to_gridmap(r),i.attr("data-row",e),this.$changed=this.$changed.add(i),o.each(function(i,e){var r=t(e),o=r.coords().grid,a=s.can_go_widget_up(o);a&&a!==o.row&&s.move_widget_to(r,a)}),this)},r.move_widget_up=function(i,e){var s=i.coords().grid,r=s.row,o=[];return e||(e=1),this.can_go_up(i)?(this.for_each_column_occupied(s,function(s){if(-1===t.inArray(i,o)){var a=i.coords().grid,n=r-e;if(n=this.can_go_up_to_row(a,s,n),!n)return!0;var h=this.widgets_below(i);this.remove_from_gridmap(a),a.row=n,this.add_to_gridmap(a),i.attr("data-row",a.row),this.$changed=this.$changed.add(i),o.push(i),h.each(t.proxy(function(i,s){this.move_widget_up(t(s),e)},this))}}),void 0):!1},r.move_widget_down=function(i,e){var s,r,o,a;if(0>=e)return!1;if(s=i.coords().grid,r=s.row,o=[],a=e,!i)return!1;if(-1===t.inArray(i,o)){var n=i.coords().grid,h=r+e,_=this.widgets_below(i);this.remove_from_gridmap(n),_.each(t.proxy(function(i,e){var s=t(e),r=s.coords().grid,o=this.displacement_diff(r,n,a);o>0&&this.move_widget_down(s,o)},this)),n.row=h,this.update_widget_position(n,i),i.attr("data-row",n.row),this.$changed=this.$changed.add(i),o.push(i)}},r.can_go_up_to_row=function(i,e,s){var r,o=this.gridmap,a=!0,n=[],h=i.row;if(this.for_each_column_occupied(i,function(t){for(o[t],n[t]=[],r=h;r--&&this.is_empty(t,r)&&!this.is_placeholder_in(t,r);)n[t].push(r);return n[t].length?void 0:(a=!1,!0)}),!a)return!1;for(r=s,r=1;h>r;r++){for(var _=!0,d=0,l=n.length;l>d;d++)n[d]&&-1===t.inArray(r,n[d])&&(_=!1);if(_===!0){a=r;break}}return a},r.displacement_diff=function(t,i,e){var s=t.row,r=[],o=i.row+i.size_y;this.for_each_column_occupied(t,function(t){for(var i=0,e=o;s>e;e++)this.is_empty(t,e)&&(i+=1);r.push(i)});var a=Math.max.apply(Math,r);return e-=a,e>0?e:0},r.widgets_below=function(i){var s=t.isPlainObject(i)?i:i.coords().grid,r=this;this.gridmap;var o=s.row+s.size_y-1,a=t([]);return this.for_each_column_occupied(s,function(i){r.for_each_widget_below(i,o,function(){return r.is_player(this)||-1!==t.inArray(this,a)?void 0:(a=a.add(this),!0)})}),e.sort_by_row_asc(a)},r.set_cells_player_occupies=function(t,i){return this.remove_from_gridmap(this.placeholder_grid_data),this.placeholder_grid_data.col=t,this.placeholder_grid_data.row=i,this.add_to_gridmap(this.placeholder_grid_data,this.$player),this},r.empty_cells_player_occupies=function(){return this.remove_from_gridmap(this.placeholder_grid_data),this},r.can_go_up=function(t){var i=t.coords().grid,e=i.row,s=e-1;this.gridmap;var r=!0;return 1===e?!1:(this.for_each_column_occupied(i,function(t){return this.is_widget(t,s),this.is_occupied(t,s)||this.is_player(t,s)||this.is_placeholder_in(t,s)||this.is_player_in(t,s)?(r=!1,!0):void 0}),r)},r.can_move_to=function(t,i,e,s){this.gridmap;var r=t.el,o={size_y:t.size_y,size_x:t.size_x,col:i,row:e},a=!0,n=i+t.size_x-1;return n>this.cols?!1:s&&e+t.size_y-1>s?!1:(this.for_each_cell_occupied(o,function(i,e){var s=this.is_widget(i,e);!s||t.el&&!s.is(r)||(a=!1)}),a)},r.get_targeted_columns=function(t){for(var i=(t||this.player_grid_data.col)+(this.player_grid_data.size_x-1),e=[],s=t;i>=s;s++)e.push(s);return e},r.get_targeted_rows=function(t){for(var i=(t||this.player_grid_data.row)+(this.player_grid_data.size_y-1),e=[],s=t;i>=s;s++)e.push(s);return e},r.get_cells_occupied=function(i){var e,s={cols:[],rows:[]};for(arguments[1]instanceof t&&(i=arguments[1].coords().grid),e=0;i.size_x>e;e++){var r=i.col+e;s.cols.push(r)}for(e=0;i.size_y>e;e++){var o=i.row+e;s.rows.push(o)}return s},r.for_each_cell_occupied=function(t,i){return this.for_each_column_occupied(t,function(e){this.for_each_row_occupied(t,function(t){i.call(this,e,t)})}),this},r.for_each_column_occupied=function(t,i){for(var e=0;t.size_x>e;e++){var s=t.col+e;i.call(this,s,t)}},r.for_each_row_occupied=function(t,i){for(var e=0;t.size_y>e;e++){var s=t.row+e;i.call(this,s,t)}},r._traversing_widgets=function(i,e,s,r,o){var a=this.gridmap;if(a[s]){var n,h,_=i+"/"+e;if(arguments[2]instanceof t){var d=arguments[2].coords().grid;s=d.col,r=d.row,o=arguments[3]}var l=[],c=r,g={"for_each/above":function(){for(;c--&&!(c>0&&this.is_widget(s,c)&&-1===t.inArray(a[s][c],l)&&(n=o.call(a[s][c],s,c),l.push(a[s][c]),n)););},"for_each/below":function(){for(c=r+1,h=a[s].length;h>c&&(!this.is_widget(s,c)||-1!==t.inArray(a[s][c],l)||(n=o.call(a[s][c],s,c),l.push(a[s][c]),!n));c++);}};g[_]&&g[_].call(this)}},r.for_each_widget_above=function(t,i,e){return this._traversing_widgets("for_each","above",t,i,e),this},r.for_each_widget_below=function(t,i,e){return this._traversing_widgets("for_each","below",t,i,e),this},r.get_highest_occupied_cell=function(){for(var t,i=this.gridmap,e=i[1].length,s=[],r=[],o=i.length-1;o>=1;o--)for(t=e-1;t>=1;t--)if(this.is_widget(o,t)){s.push(t),r.push(o);break}return{col:Math.max.apply(Math,r),row:Math.max.apply(Math,s)}},r.get_widgets_from=function(i,e){this.gridmap;var s=t();return i&&(s=s.add(this.$widgets.filter(function(){var e=t(this).attr("data-col");return e===i||e>i}))),e&&(s=s.add(this.$widgets.filter(function(){var i=t(this).attr("data-row");return i===e||i>e}))),s},r.set_dom_grid_height=function(t){if(t===void 0){var i=this.get_highest_occupied_cell().row;t=i*this.min_widget_height}return this.container_height=t,this.$el.css("height",this.container_height),this},r.set_dom_grid_width=function(t){t===void 0&&(t=this.get_highest_occupied_cell().col);var i=this.options.autogrow_cols?this.options.max_cols:this.cols;return t=Math.min(i,Math.max(t,this.options.min_cols)),this.container_width=t*this.min_widget_width,this.$el.css("width",this.container_width),this},r.generate_stylesheet=function(i){var s,r="",o=this.options.max_size_x||this.cols;i||(i={}),i.cols||(i.cols=this.cols),i.rows||(i.rows=this.rows),i.namespace||(i.namespace=this.options.namespace),i.widget_base_dimensions||(i.widget_base_dimensions=this.options.widget_base_dimensions),i.widget_margins||(i.widget_margins=this.options.widget_margins),i.min_widget_width=2*i.widget_margins[0]+i.widget_base_dimensions[0],i.min_widget_height=2*i.widget_margins[1]+i.widget_base_dimensions[1];var a=t.param(i);if(t.inArray(a,e.generated_stylesheets)>=0)return!1;for(this.generated_stylesheets.push(a),e.generated_stylesheets.push(a),s=i.cols;s>=0;s--)r+=i.namespace+' [data-col="'+(s+1)+'"] { left:'+(s*i.widget_base_dimensions[0]+s*i.widget_margins[0]+(s+1)*i.widget_margins[0])+"px; }\n";for(s=i.rows;s>=0;s--)r+=i.namespace+' [data-row="'+(s+1)+'"] { top:'+(s*i.widget_base_dimensions[1]+s*i.widget_margins[1]+(s+1)*i.widget_margins[1])+"px; }\n";for(var n=1;i.rows>=n;n++)r+=i.namespace+' [data-sizey="'+n+'"] { height:'+(n*i.widget_base_dimensions[1]+(n-1)*2*i.widget_margins[1])+"px; }\n";for(var h=1;o>=h;h++)r+=i.namespace+' [data-sizex="'+h+'"] { width:'+(h*i.widget_base_dimensions[0]+(h-1)*2*i.widget_margins[0])+"px; }\n";return this.remove_style_tags(),this.add_style_tag(r)},r.add_style_tag=function(t){var i=document,e=i.createElement("style");return i.getElementsByTagName("head")[0].appendChild(e),e.setAttribute("type","text/css"),e.styleSheet?e.styleSheet.cssText=t:e.appendChild(document.createTextNode(t)),this.$style_tags=this.$style_tags.add(e),this},r.remove_style_tags=function(){var i=e.generated_stylesheets,s=this.generated_stylesheets;this.$style_tags.remove(),e.generated_stylesheets=t.map(i,function(i){return-1===t.inArray(i,s)?i:void 0})},r.generate_faux_grid=function(t,i){this.faux_grid=[],this.gridmap=[];var e,s;for(e=i;e>0;e--)for(this.gridmap[e]=[],s=t;s>0;s--)this.add_faux_cell(s,e);return this},r.add_faux_cell=function(i,e){var s=t({left:this.baseX+(e-1)*this.min_widget_width,top:this.baseY+(i-1)*this.min_widget_height,width:this.min_widget_width,height:this.min_widget_height,col:e,row:i,original_col:e,original_row:i}).coords();return t.isArray(this.gridmap[e])||(this.gridmap[e]=[]),this.gridmap[e][i]=!1,this.faux_grid.push(s),this},r.add_faux_rows=function(t){for(var i=this.rows,e=i+(t||1),s=e;s>i;s--)for(var r=this.cols;r>=1;r--)this.add_faux_cell(s,r);return this.rows=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},r.add_faux_cols=function(t){var i=this.cols,e=i+(t||1);e=Math.min(e,this.options.max_cols);for(var s=i+1;e>=s;s++)for(var r=this.rows;r>=1;r--)this.add_faux_cell(r,s);return this.cols=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},r.recalculate_faux_grid=function(){var i=this.$wrapper.width();return this.baseX=(t(window).width()-i)/2,this.baseY=this.$wrapper.offset().top,t.each(this.faux_grid,t.proxy(function(t,i){this.faux_grid[t]=i.update({left:this.baseX+(i.data.col-1)*this.min_widget_width,top:this.baseY+(i.data.row-1)*this.min_widget_height})},this)),this},r.get_widgets_from_DOM=function(){var i=this.$widgets.map(t.proxy(function(i,e){var s=t(e);return this.dom_to_coords(s)},this));i=e.sort_by_row_and_col_asc(i);var s=t(i).map(t.proxy(function(t,i){return this.register_widget(i)||null},this));return s.length&&this.$el.trigger("gridster:positionschanged"),this},r.generate_grid_and_stylesheet=function(){var i=this.$wrapper.width(),e=this.options.max_cols,s=Math.floor(i/this.min_widget_width)+this.options.extra_cols,r=this.$widgets.map(function(){return t(this).attr("data-col")}).get();r.length||(r=[0]);var o=Math.max.apply(Math,r);this.cols=Math.max(o,s,this.options.min_cols),1/0!==e&&e>=o&&this.cols>e&&(this.cols=e);var a=this.options.extra_rows;return this.$widgets.each(function(i,e){a+=+t(e).attr("data-sizey")}),this.rows=Math.max(a,this.options.min_rows),this.baseX=(t(window).width()-i)/2,this.baseY=this.$wrapper.offset().top,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this.generate_faux_grid(this.rows,this.cols)},r.destroy=function(i){return this.$el.removeData("gridster"),t(window).unbind(".gridster"),this.drag_api&&this.drag_api.destroy(),this.remove_style_tags(),i&&this.$el.remove(),this},t.fn.gridster=function(i){return this.each(function(){t(this).data("gridster")||t(this).data("gridster",new e(this,i))})},e}),function(t,i){"function"==typeof define&&define.amd?define(["jquery","gridster"],i):t.Gridster=i(t.$||t.jQuery,t.Gridster)}(this,function(t,i){var e=i.prototype;return e.widgets_in_col=function(t){if(!this.gridmap[t])return!1;for(var i=this.gridmap[t].length-1;i>=0;i--)if(this.is_widget(t,i)!==!1)return!0;return!1},e.widgets_in_row=function(t){for(var i=this.gridmap.length;i>=1;i--)if(this.is_widget(i,t)!==!1)return!0;return!1},e.widgets_in_range=function(i,e,s,r){var o,a,n,h,_=t([]);for(o=s;o>=i;o--)for(a=r;a>=e;a--)n=this.is_widget(o,a),n!==!1&&(h=n.data("coords").grid,h.col>=i&&s>=h.col&&h.row>=e&&r>=h.row&&(_=_.add(n)));return _},e.get_bottom_most_occupied_cell=function(){var t=0,i=0;return this.for_each_cell(function(e,s,r){e&&r>t&&(t=r,i=s)}),{col:i,row:t}},e.get_right_most_occupied_cell=function(){var t=0,i=0;return this.for_each_cell(function(e,s,r){return e?(t=r,i=s,!1):void 0}),{col:i,row:t}},e.for_each_cell=function(t,i){i||(i=this.gridmap);var e=i.length,s=i[1].length;t:for(var r=e-1;r>=1;r--)for(var o=s-1;o>=1;o--){var a=i[r]&&i[r][o];if(t){if(t.call(this,a,r,o)===!1)break t}else;}},e.next_position_in_range=function(t,e,s){t||(t=1),e||(e=1);for(var r,o=this.gridmap,a=o.length,n=[],h=1;a>h;h++){r=s||o[h].length;for(var _=1;r>=_;_++){var d=this.can_move_to({size_x:t,size_y:e},h,_,s);d&&n.push({col:h,row:_,size_y:e,size_x:t})}}return n.length>=1?i.sort_by_col_asc(n)[0]:!1},e.closest_to_right=function(t,i){if(!this.gridmap[t])return!1;for(var e=this.gridmap.length-1,s=t;e>=s;s++)if(this.gridmap[s][i])return{col:s,row:i};return!1},e.closest_to_left=function(t,i){if(this.gridmap.length-1,!this.gridmap[t])return!1;for(var e=t;e>=1;e--)if(this.gridmap[e][i])return{col:e,row:i};return!1},i});
\ No newline at end of file
diff --git a/ajax/libs/jquery.gridster/package.json b/ajax/libs/jquery.gridster/package.json
index 10ab33796..d1a861db4 100644
--- a/ajax/libs/jquery.gridster/package.json
+++ b/ajax/libs/jquery.gridster/package.json
@@ -1,7 +1,7 @@
{
"name": "jquery.gridster",
"filename": "jquery.gridster.min.js",
- "version": "0.5.2",
+ "version": "0.5.3",
"description": "Gridster is a jQuery plugin that makes building intuitive draggable layouts from elements spanning multiple columns",
"url": "http://gridster.net/",
"license": "MIT",