diff --git a/ajax/libs/cytoscape/2.3.4/cytoscape.js b/ajax/libs/cytoscape/2.3.4/cytoscape.js
new file mode 100644
index 000000000..aad561bab
--- /dev/null
+++ b/ajax/libs/cytoscape/2.3.4/cytoscape.js
@@ -0,0 +1,22935 @@
+/*!
+ * This file is part of Cytoscape.js 2.3.4.
+ *
+ * Cytoscape.js is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * Cytoscape.js is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * Cytoscape.js. If not, see .
+ */
+
+
+// this is put as a global var in the browser
+// or it's just a global to this module if commonjs
+
+var cytoscape;
+
+(function(window){ 'use strict';
+
+ // the object iteself is a function that init's an instance of cytoscape
+
+ var $$ = cytoscape = function(){ // jshint ignore:line
+ return cytoscape.init.apply(cytoscape, arguments);
+ };
+
+ $$.version = '2.3.4';
+
+ // allow functional access to cytoscape.js
+ // e.g. var cyto = $.cytoscape({ selector: "#foo", ... });
+ // var nodes = cyto.nodes();
+ $$.init = function( options ){
+
+ // if no options specified, use default
+ if( options === undefined ){
+ options = {};
+ }
+
+ // create instance
+ if( $$.is.plainObject( options ) ){
+ return new $$.Core( options );
+ }
+
+ // allow for registration of extensions
+ // e.g. $.cytoscape('renderer', 'svg', SvgRenderer);
+ // e.g. $.cytoscape('renderer', 'svg', 'nodeshape', 'ellipse', SvgEllipseNodeShape);
+ // e.g. $.cytoscape('core', 'doSomething', function(){ /* doSomething code */ });
+ // e.g. $.cytoscape('collection', 'doSomething', function(){ /* doSomething code */ });
+ else if( $$.is.string( options ) ) {
+ return $$.extension.apply($$.extension, arguments);
+ }
+ };
+
+ // define the function namespace here, since it has members in many places
+ $$.fn = {};
+
+ if( typeof module !== 'undefined' && module.exports ){ // expose as a commonjs module
+ module.exports = cytoscape;
+ }
+
+ if( typeof define !== 'undefined' && define.amd ){ // expose as an amd/requirejs module
+ define('cytoscape', function(){
+ return cytoscape;
+ });
+ }
+
+ // make sure we always register in the window just in case (e.g. w/ derbyjs)
+ if( window ){
+ window.cytoscape = cytoscape;
+ }
+
+})( typeof window === 'undefined' ? null : window );
+
+// type testing utility functions
+
+;(function($$, window){ 'use strict';
+
+ $$.is = {
+ defined: function(obj){
+ return obj != null; // not undefined or null
+ },
+
+ string: function(obj){
+ return obj != null && typeof obj == typeof '';
+ },
+
+ fn: function(obj){
+ return obj != null && typeof obj === typeof function(){};
+ },
+
+ array: function(obj){
+ return Array.isArray ? Array.isArray(obj) : obj != null && obj instanceof Array;
+ },
+
+ plainObject: function(obj){
+ return obj != null && typeof obj === typeof {} && !$$.is.array(obj) && obj.constructor === Object;
+ },
+
+ number: function(obj){
+ return obj != null && typeof obj === typeof 1 && !isNaN(obj);
+ },
+
+ integer: function( obj ){
+ return $$.is.number(obj) && Math.floor(obj) === obj;
+ },
+
+ color: function(obj){
+ return obj != null && typeof obj === typeof '' && $.Color(obj).toString() !== '';
+ },
+
+ bool: function(obj){
+ return obj != null && typeof obj === typeof true;
+ },
+
+ elementOrCollection: function(obj){
+ return $$.is.element(obj) || $$.is.collection(obj);
+ },
+
+ element: function(obj){
+ return obj instanceof $$.Element && obj._private.single;
+ },
+
+ collection: function(obj){
+ return obj instanceof $$.Collection && !obj._private.single;
+ },
+
+ core: function(obj){
+ return obj instanceof $$.Core;
+ },
+
+ style: function(obj){
+ return obj instanceof $$.Style;
+ },
+
+ stylesheet: function(obj){
+ return obj instanceof $$.Stylesheet;
+ },
+
+ event: function(obj){
+ return obj instanceof $$.Event;
+ },
+
+ emptyString: function(obj){
+ if( !obj ){ // null is empty
+ return true;
+ } else if( $$.is.string(obj) ){
+ if( obj === '' || obj.match(/^\s+$/) ){
+ return true; // empty string is empty
+ }
+ }
+
+ return false; // otherwise, we don't know what we've got
+ },
+
+ nonemptyString: function(obj){
+ if( obj && $$.is.string(obj) && obj !== '' && !obj.match(/^\s+$/) ){
+ return true;
+ }
+
+ return false;
+ },
+
+ domElement: function(obj){
+ if( typeof HTMLElement === 'undefined' ){
+ return false; // we're not in a browser so it doesn't matter
+ } else {
+ return obj instanceof HTMLElement;
+ }
+ },
+
+ touch: function(){
+ return window && ( ('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch );
+ },
+
+ boundingBox: function(obj){
+ return $$.is.plainObject(obj) &&
+ $$.is.number(obj.x1) && $$.is.number(obj.x2) &&
+ $$.is.number(obj.y1) && $$.is.number(obj.y2)
+ ;
+ }
+ };
+
+})( cytoscape, typeof window === 'undefined' ? null : window );
+
+;(function($$, window){ 'use strict';
+
+ // utility functions only for internal use
+
+ $$.util = {
+
+ // the jquery extend() function
+ // NB: modified to use $$.is etc since we can't use jquery functions
+ extend: function() {
+ var options, name, src, copy, copyIsArray, clone,
+ target = arguments[0] || {},
+ i = 1,
+ length = arguments.length,
+ deep = false;
+
+ // Handle a deep copy situation
+ if ( typeof target === 'boolean' ) {
+ deep = target;
+ target = arguments[1] || {};
+ // skip the boolean and the target
+ i = 2;
+ }
+
+ // Handle case when target is a string or something (possible in deep copy)
+ if ( typeof target !== 'object' && !$$.is.fn(target) ) {
+ target = {};
+ }
+
+ // extend jQuery itself if only one argument is passed
+ if ( length === i ) {
+ target = this;
+ --i;
+ }
+
+ for ( ; i < length; i++ ) {
+ // Only deal with non-null/undefined values
+ if ( (options = arguments[ i ]) != null ) {
+ // Extend the base object
+ for ( name in options ) {
+ src = target[ name ];
+ copy = options[ name ];
+
+ // Prevent never-ending loop
+ if ( target === copy ) {
+ continue;
+ }
+
+ // Recurse if we're merging plain objects or arrays
+ if ( deep && copy && ( $$.is.plainObject(copy) || (copyIsArray = $$.is.array(copy)) ) ) {
+ if ( copyIsArray ) {
+ copyIsArray = false;
+ clone = src && $$.is.array(src) ? src : [];
+
+ } else {
+ clone = src && $$.is.plainObject(src) ? src : {};
+ }
+
+ // Never move original objects, clone them
+ target[ name ] = $$.util.extend( deep, clone, copy );
+
+ // Don't bring in undefined values
+ } else if ( copy !== undefined ) {
+ target[ name ] = copy;
+ }
+ }
+ }
+ }
+
+ // Return the modified object
+ return target;
+ },
+
+ // require that pulls in module from commonjs, amd, or window (falling back until found)
+ require: function( name, callback, options ){
+ var ret;
+ options = $$.util.extend({
+ msgIfNotFound: true
+ }, options);
+
+ var done = false;
+ var fulfil = function( ret ){
+ done = true;
+ callback( ret );
+ };
+
+ var checkWindow = function( next ){
+ if( window ){ // detected browser/window env
+ ret = window[ name ];
+ }
+
+ if( ret !== undefined ){ fulfil(ret); }
+ if( next ){ next(); }
+ };
+ var onCheckWindowDone = function(){
+ if( !done ){
+ checkCommonJs( onCheckCommonJsDone );
+ }
+ };
+
+ var checkCommonJs = function( next ){
+ if( typeof module !== 'undefined' && module.exports && require ){ // detected commonjs env
+ ret = require( name ); // regular require
+ }
+
+ if( ret !== undefined ){ fulfil(ret); }
+ if( next ){ next(); }
+ };
+ var onCheckCommonJsDone = function(){
+ if( !done ){
+ checkAmd( onCheckAmdDone );
+ }
+ };
+
+ var checkAmd = function( next ){
+ if( typeof define !== 'undefined' && define.amd && require ){ // detected amd env w/ defined module
+ require([ name ], function( nameImpl ){
+ ret = nameImpl;
+
+ if( ret !== undefined ){ fulfil(ret); }
+ if( next ){ next(); }
+ });
+ }
+ };
+ var onCheckAmdDone = function(){
+ if( !done && options.msgIfNotFound ){
+ $$.util.error('Cytoscape.js tried to pull in dependency `' + name + '` but no module (i.e. CommonJS, AMD, or window) was found');
+ }
+ };
+
+ // kick off 1st check: window
+ checkWindow( onCheckWindowDone );
+
+ },
+
+ // multiple requires in one callback
+ requires: function( names, callback ){
+ var impls = [];
+ var gotImpl = [];
+
+ var checkDone = function(){
+ for( var i = 0; i < names.length; i++ ){ // check have all impls
+ if( !gotImpl[i] ){ return; }
+ }
+
+ // otherwise, all got all impls => done
+ callback.apply( callback, impls );
+ };
+
+ for( var i = 0; i < names.length; i++ ){ (function(){ // w/scope
+ var name = names[i];
+ var index = i;
+
+ $$.util.require(name, function(impl){
+ impls[index] = impl;
+ gotImpl[index] = true;
+
+ checkDone();
+ });
+ })(); }
+ },
+
+ // ported lodash throttle function
+ throttle: function(func, wait, options) {
+ var leading = true,
+ trailing = true;
+
+ if (options === false) {
+ leading = false;
+ } else if ($$.is.plainObject(options)) {
+ leading = 'leading' in options ? options.leading : leading;
+ trailing = 'trailing' in options ? options.trailing : trailing;
+ }
+ options = options || {};
+ options.leading = leading;
+ options.maxWait = wait;
+ options.trailing = trailing;
+
+ return $$.util.debounce(func, wait, options);
+ },
+
+ now: function(){
+ return +new Date();
+ },
+
+ // ported lodash debounce function
+ debounce: function(func, wait, options) {
+ var args,
+ maxTimeoutId,
+ result,
+ stamp,
+ thisArg,
+ timeoutId,
+ trailingCall,
+ lastCalled = 0,
+ maxWait = false,
+ trailing = true;
+
+ if (!$$.is.fn(func)) {
+ return;
+ }
+ wait = Math.max(0, wait) || 0;
+ if (options === true) {
+ var leading = true;
+ trailing = false;
+ } else if ($$.is.plainObject(options)) {
+ leading = options.leading;
+ maxWait = 'maxWait' in options && (Math.max(wait, options.maxWait) || 0);
+ trailing = 'trailing' in options ? options.trailing : trailing;
+ }
+ var delayed = function() {
+ var remaining = wait - ($$.util.now() - stamp);
+ if (remaining <= 0) {
+ if (maxTimeoutId) {
+ clearTimeout(maxTimeoutId);
+ }
+ var isCalled = trailingCall;
+ maxTimeoutId = timeoutId = trailingCall = undefined;
+ if (isCalled) {
+ lastCalled = $$.util.now();
+ result = func.apply(thisArg, args);
+ if (!timeoutId && !maxTimeoutId) {
+ args = thisArg = null;
+ }
+ }
+ } else {
+ timeoutId = setTimeout(delayed, remaining);
+ }
+ };
+
+ var maxDelayed = function() {
+ if (timeoutId) {
+ clearTimeout(timeoutId);
+ }
+ maxTimeoutId = timeoutId = trailingCall = undefined;
+ if (trailing || (maxWait !== wait)) {
+ lastCalled = $$.util.now();
+ result = func.apply(thisArg, args);
+ if (!timeoutId && !maxTimeoutId) {
+ args = thisArg = null;
+ }
+ }
+ };
+
+ return function() {
+ args = arguments;
+ stamp = $$.util.now();
+ thisArg = this;
+ trailingCall = trailing && (timeoutId || !leading);
+
+ if (maxWait === false) {
+ var leadingCall = leading && !timeoutId;
+ } else {
+ if (!maxTimeoutId && !leading) {
+ lastCalled = stamp;
+ }
+ var remaining = maxWait - (stamp - lastCalled),
+ isCalled = remaining <= 0;
+
+ if (isCalled) {
+ if (maxTimeoutId) {
+ maxTimeoutId = clearTimeout(maxTimeoutId);
+ }
+ lastCalled = stamp;
+ result = func.apply(thisArg, args);
+ }
+ else if (!maxTimeoutId) {
+ maxTimeoutId = setTimeout(maxDelayed, remaining);
+ }
+ }
+ if (isCalled && timeoutId) {
+ timeoutId = clearTimeout(timeoutId);
+ }
+ else if (!timeoutId && wait !== maxWait) {
+ timeoutId = setTimeout(delayed, wait);
+ }
+ if (leadingCall) {
+ isCalled = true;
+ result = func.apply(thisArg, args);
+ }
+ if (isCalled && !timeoutId && !maxTimeoutId) {
+ args = thisArg = null;
+ }
+ return result;
+ };
+ },
+
+ error: function( msg ){
+ if( console ){
+ if( console.error ){
+ console.error.apply( console, arguments );
+ } else if( console.log ){
+ console.log.apply( console, arguments );
+ } else {
+ throw msg;
+ }
+ } else {
+ throw msg;
+ }
+ },
+
+ clone: function( obj ){
+ var target = {};
+ for (var i in obj) {
+ if ( obj.hasOwnProperty(i) ) { // TODO is this hasOwnProperty() call necessary for our use?
+ target[i] = obj[i];
+ }
+ }
+ return target;
+ },
+
+ // gets a shallow copy of the argument
+ copy: function( obj ){
+ if( obj == null ){
+ return obj;
+ } if( $$.is.array(obj) ){
+ return obj.slice();
+ } else if( $$.is.plainObject(obj) ){
+ return $$.util.clone( obj );
+ } else {
+ return obj;
+ }
+ },
+
+ // makes a full bb (x1, y1, x2, y2, w, h) from implicit params
+ makeBoundingBox: function( bb ){
+ if( bb.x1 != null && bb.y1 != null ){
+ if( bb.x2 != null && bb.y2 != null && bb.x2 >= bb.x1 && bb.y2 >= bb.y1 ){
+ return {
+ x1: bb.x1,
+ y1: bb.y1,
+ x2: bb.x2,
+ y2: bb.y2,
+ w: bb.x2 - bb.x1,
+ h: bb.y2 - bb.y1
+ };
+ } else if( bb.w != null && bb.h != null && bb.w >= 0 && bb.h >= 0 ){
+ return {
+ x1: bb.x1,
+ y1: bb.y1,
+ x2: bb.x1 + bb.w,
+ y2: bb.y1 + bb.h,
+ w: bb.w,
+ h: bb.h
+ };
+ }
+ }
+ },
+
+ // has anything been set in the map
+ mapEmpty: function( map ){
+ var empty = true;
+
+ if( map != null ){
+ for(var i in map){ // jshint ignore:line
+ empty = false;
+ break;
+ }
+ }
+
+ return empty;
+ },
+
+ // pushes to the array at the end of a map (map may not be built)
+ pushMap: function( options ){
+ var array = $$.util.getMap(options);
+
+ if( array == null ){ // if empty, put initial array
+ $$.util.setMap( $.extend({}, options, {
+ value: [ options.value ]
+ }) );
+ } else {
+ array.push( options.value );
+ }
+ },
+
+ // sets the value in a map (map may not be built)
+ setMap: function( options ){
+ var obj = options.map;
+ var key;
+ var keys = options.keys;
+ var l = keys.length;
+
+ for(var i = 0; i < l; i++){
+ var key = keys[i];
+
+ if( $$.is.plainObject( key ) ){
+ $$.util.error('Tried to set map with object key');
+ }
+
+ if( i < keys.length - 1 ){
+
+ // extend the map if necessary
+ if( obj[key] == null ){
+ obj[key] = {};
+ }
+
+ obj = obj[key];
+ } else {
+ // set the value
+ obj[key] = options.value;
+ }
+ }
+ },
+
+ // gets the value in a map even if it's not built in places
+ getMap: function( options ){
+ var obj = options.map;
+ var keys = options.keys;
+ var l = keys.length;
+
+ for(var i = 0; i < l; i++){
+ var key = keys[i];
+
+ if( $$.is.plainObject( key ) ){
+ $$.util.error('Tried to get map with object key');
+ }
+
+ obj = obj[key];
+
+ if( obj == null ){
+ return obj;
+ }
+ }
+
+ return obj;
+ },
+
+ // deletes the entry in the map
+ deleteMap: function( options ){
+ var obj = options.map;
+ var keys = options.keys;
+ var l = keys.length;
+ var keepChildren = options.keepChildren;
+
+ for(var i = 0; i < l; i++){
+ var key = keys[i];
+
+ if( $$.is.plainObject( key ) ){
+ $$.util.error('Tried to delete map with object key');
+ }
+
+ var lastKey = i === options.keys.length - 1;
+ if( lastKey ){
+
+ if( keepChildren ){ // then only delete child fields not in keepChildren
+ for( var child in obj ){
+ if( !keepChildren[child] ){
+ obj[child] = undefined;
+ }
+ }
+ } else {
+ obj[key] = undefined;
+ }
+
+ } else {
+ obj = obj[key];
+ }
+ }
+ },
+
+ capitalize: function(str){
+ if( $$.is.emptyString(str) ){
+ return str;
+ }
+
+ return str.charAt(0).toUpperCase() + str.substring(1);
+ },
+
+ camel2dash: function( str ){
+ var ret = [];
+
+ for( var i = 0; i < str.length; i++ ){
+ var ch = str[i];
+ var chLowerCase = ch.toLowerCase();
+ var isUpperCase = ch !== chLowerCase;
+
+ if( isUpperCase ){
+ ret.push( '-' );
+ ret.push( chLowerCase );
+ } else {
+ ret.push( ch );
+ }
+ }
+
+ var noUpperCases = ret.length === str.length;
+ if( noUpperCases ){ return str; } // cheaper than .join()
+
+ return ret.join('');
+ },
+
+ dash2camel: function( str ){
+ var ret = [];
+ var nextIsUpper = false;
+
+ for( var i = 0; i < str.length; i++ ){
+ var ch = str[i];
+ var isDash = ch === '-';
+
+ if( isDash ){
+ nextIsUpper = true;
+ } else {
+ if( nextIsUpper ){
+ ret.push( ch.toUpperCase() );
+ } else {
+ ret.push( ch );
+ }
+
+ nextIsUpper = false;
+ }
+ }
+
+ return ret.join('');
+ },
+
+ // strip spaces from beginning of string and end of string
+ trim: function( str ){
+ var first, last;
+
+ // find first non-space char
+ for( first = 0; first < str.length && str[first] === ' '; first++ ){}
+
+ // find last non-space char
+ for( last = str.length - 1; last > first && str[last] === ' '; last-- ){}
+
+ return str.substring(first, last + 1);
+ },
+
+ // get [r, g, b] from #abc or #aabbcc
+ hex2tuple: function( hex ){
+ if( !(hex.length === 4 || hex.length === 7) || hex[0] !== "#" ){ return; }
+
+ var shortHex = hex.length === 4;
+ var r, g, b;
+ var base = 16;
+
+ if( shortHex ){
+ r = parseInt( hex[1] + hex[1], base );
+ g = parseInt( hex[2] + hex[2], base );
+ b = parseInt( hex[3] + hex[3], base );
+ } else {
+ r = parseInt( hex[1] + hex[2], base );
+ g = parseInt( hex[3] + hex[4], base );
+ b = parseInt( hex[5] + hex[6], base );
+ }
+
+ return [r, g, b];
+ },
+
+ // get [r, g, b, a] from hsl(0, 0, 0) or hsla(0, 0, 0, 0)
+ hsl2tuple: function( hsl ){
+ var ret;
+ var h, s, l, a, r, g, b;
+ function hue2rgb(p, q, t){
+ if(t < 0) t += 1;
+ if(t > 1) t -= 1;
+ if(t < 1/6) return p + (q - p) * 6 * t;
+ if(t < 1/2) return q;
+ if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
+ return p;
+ }
+
+ var m = new RegExp("^" + $$.util.regex.hsla + "$").exec(hsl);
+ if( m ){
+
+ // get hue
+ h = parseInt( m[1] );
+ if( h < 0 ){
+ h = ( 360 - (-1*h % 360) ) % 360;
+ } else if( h > 360 ){
+ h = h % 360;
+ }
+ h /= 360; // normalise on [0, 1]
+
+ s = parseFloat( m[2] );
+ if( s < 0 || s > 100 ){ return; } // saturation is [0, 100]
+ s = s/100; // normalise on [0, 1]
+
+ l = parseFloat( m[3] );
+ if( l < 0 || l > 100 ){ return; } // lightness is [0, 100]
+ l = l/100; // normalise on [0, 1]
+
+ a = m[4];
+ if( a !== undefined ){
+ a = parseFloat( a );
+
+ if( a < 0 || a > 1 ){ return; } // alpha is [0, 1]
+ }
+
+ // now, convert to rgb
+ // code from http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript
+ if( s === 0 ){
+ r = g = b = Math.round(l * 255); // achromatic
+ } else {
+ var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+ var p = 2 * l - q;
+ r = Math.round( 255 * hue2rgb(p, q, h + 1/3) );
+ g = Math.round( 255 * hue2rgb(p, q, h) );
+ b = Math.round( 255 * hue2rgb(p, q, h - 1/3) );
+ }
+
+ ret = [r, g, b, a];
+ }
+
+ return ret;
+ },
+
+ // get [r, g, b, a] from rgb(0, 0, 0) or rgba(0, 0, 0, 0)
+ rgb2tuple: function( rgb ){
+ var ret;
+
+ var m = new RegExp("^" + $$.util.regex.rgba + "$").exec(rgb);
+ if( m ){
+ ret = [];
+
+ var isPct = [];
+ for( var i = 1; i <= 3; i++ ){
+ var channel = m[i];
+
+ if( channel[ channel.length - 1 ] === "%" ){
+ isPct[i] = true;
+ }
+ channel = parseFloat( channel );
+
+ if( isPct[i] ){
+ channel = channel/100 * 255; // normalise to [0, 255]
+ }
+
+ if( channel < 0 || channel > 255 ){ return; } // invalid channel value
+
+ ret.push( Math.floor(channel) );
+ }
+
+ var atLeastOneIsPct = isPct[1] || isPct[2] || isPct[3];
+ var allArePct = isPct[1] && isPct[2] && isPct[3];
+ if( atLeastOneIsPct && !allArePct ){ return; } // must all be percent values if one is
+
+ var alpha = m[4];
+ if( alpha !== undefined ){
+ alpha = parseFloat( alpha );
+
+ if( alpha < 0 || alpha > 1 ){ return; } // invalid alpha value
+
+ ret.push( alpha );
+ }
+ }
+
+ return ret;
+ },
+
+ colorname2tuple: function( color ){
+ return $$.util.colors[ color.toLowerCase() ];
+ },
+
+ color2tuple: function( color ){
+ return ( $$.is.array(color) ? color : null )
+ || $$.util.colorname2tuple(color)
+ || $$.util.hex2tuple(color)
+ || $$.util.rgb2tuple(color)
+ || $$.util.hsl2tuple(color);
+ },
+
+ tuple2hex: function( tuple ){
+ var r = tuple[0];
+ var g = tuple[1];
+ var b = tuple[2];
+
+ function ch2hex( ch ){
+ var hex = ch.toString(16);
+
+ if( hex.length === 1 ){
+ hex = '0' + hex;
+ }
+
+ return hex;
+ }
+
+ return '#' + ch2hex(r) + ch2hex(g) + ch2hex(b);
+ },
+
+ colors: {
+ // special colour names
+ transparent: [0,0,0,0], // NB alpha === 0
+
+ // regular colours
+ aliceblue: [240,248,255],
+ antiquewhite: [250,235,215],
+ aqua: [0,255,255],
+ aquamarine: [127,255,212],
+ azure: [240,255,255],
+ beige: [245,245,220],
+ bisque: [255,228,196],
+ black: [0,0,0],
+ blanchedalmond: [255,235,205],
+ blue: [0,0,255],
+ blueviolet: [138,43,226],
+ brown: [165,42,42],
+ burlywood: [222,184,135],
+ cadetblue: [95,158,160],
+ chartreuse: [127,255,0],
+ chocolate: [210,105,30],
+ coral: [255,127,80],
+ cornflowerblue: [100,149,237],
+ cornsilk: [255,248,220],
+ crimson: [220,20,60],
+ cyan: [0,255,255],
+ darkblue: [0,0,139],
+ darkcyan: [0,139,139],
+ darkgoldenrod: [184,134,11],
+ darkgray: [169,169,169],
+ darkgreen: [0,100,0],
+ darkgrey: [169,169,169],
+ darkkhaki: [189,183,107],
+ darkmagenta: [139,0,139],
+ darkolivegreen: [85,107,47],
+ darkorange: [255,140,0],
+ darkorchid: [153,50,204],
+ darkred: [139,0,0],
+ darksalmon: [233,150,122],
+ darkseagreen: [143,188,143],
+ darkslateblue: [72,61,139],
+ darkslategray: [47,79,79],
+ darkslategrey: [47,79,79],
+ darkturquoise: [0,206,209],
+ darkviolet: [148,0,211],
+ deeppink: [255,20,147],
+ deepskyblue: [0,191,255],
+ dimgray: [105,105,105],
+ dimgrey: [105,105,105],
+ dodgerblue: [30,144,255],
+ firebrick: [178,34,34],
+ floralwhite: [255,250,240],
+ forestgreen: [34,139,34],
+ fuchsia: [255,0,255],
+ gainsboro: [220,220,220],
+ ghostwhite: [248,248,255],
+ gold: [255,215,0],
+ goldenrod: [218,165,32],
+ gray: [128,128,128],
+ grey: [128,128,128],
+ green: [0,128,0],
+ greenyellow: [173,255,47],
+ honeydew: [240,255,240],
+ hotpink: [255,105,180],
+ indianred: [205,92,92],
+ indigo: [75,0,130],
+ ivory: [255,255,240],
+ khaki: [240,230,140],
+ lavender: [230,230,250],
+ lavenderblush: [255,240,245],
+ lawngreen: [124,252,0],
+ lemonchiffon: [255,250,205],
+ lightblue: [173,216,230],
+ lightcoral: [240,128,128],
+ lightcyan: [224,255,255],
+ lightgoldenrodyellow: [250,250,210],
+ lightgray: [211,211,211],
+ lightgreen: [144,238,144],
+ lightgrey: [211,211,211],
+ lightpink: [255,182,193],
+ lightsalmon: [255,160,122],
+ lightseagreen: [32,178,170],
+ lightskyblue: [135,206,250],
+ lightslategray: [119,136,153],
+ lightslategrey: [119,136,153],
+ lightsteelblue: [176,196,222],
+ lightyellow: [255,255,224],
+ lime: [0,255,0],
+ limegreen: [50,205,50],
+ linen: [250,240,230],
+ magenta: [255,0,255],
+ maroon: [128,0,0],
+ mediumaquamarine: [102,205,170],
+ mediumblue: [0,0,205],
+ mediumorchid: [186,85,211],
+ mediumpurple: [147,112,219],
+ mediumseagreen: [60,179,113],
+ mediumslateblue: [123,104,238],
+ mediumspringgreen: [0,250,154],
+ mediumturquoise: [72,209,204],
+ mediumvioletred: [199,21,133],
+ midnightblue: [25,25,112],
+ mintcream: [245,255,250],
+ mistyrose: [255,228,225],
+ moccasin: [255,228,181],
+ navajowhite: [255,222,173],
+ navy: [0,0,128],
+ oldlace: [253,245,230],
+ olive: [128,128,0],
+ olivedrab: [107,142,35],
+ orange: [255,165,0],
+ orangered: [255,69,0],
+ orchid: [218,112,214],
+ palegoldenrod: [238,232,170],
+ palegreen: [152,251,152],
+ paleturquoise: [175,238,238],
+ palevioletred: [219,112,147],
+ papayawhip: [255,239,213],
+ peachpuff: [255,218,185],
+ peru: [205,133,63],
+ pink: [255,192,203],
+ plum: [221,160,221],
+ powderblue: [176,224,230],
+ purple: [128,0,128],
+ red: [255,0,0],
+ rosybrown: [188,143,143],
+ royalblue: [65,105,225],
+ saddlebrown: [139,69,19],
+ salmon: [250,128,114],
+ sandybrown: [244,164,96],
+ seagreen: [46,139,87],
+ seashell: [255,245,238],
+ sienna: [160,82,45],
+ silver: [192,192,192],
+ skyblue: [135,206,235],
+ slateblue: [106,90,205],
+ slategray: [112,128,144],
+ slategrey: [112,128,144],
+ snow: [255,250,250],
+ springgreen: [0,255,127],
+ steelblue: [70,130,180],
+ tan: [210,180,140],
+ teal: [0,128,128],
+ thistle: [216,191,216],
+ tomato: [255,99,71],
+ turquoise: [64,224,208],
+ violet: [238,130,238],
+ wheat: [245,222,179],
+ white: [255,255,255],
+ whitesmoke: [245,245,245],
+ yellow: [255,255,0],
+ yellowgreen: [154,205,50]
+ }
+
+ };
+
+ $$.util.regex = {};
+
+ $$.util.regex.number = "(?:[-]?\\d*\\.\\d+|[-]?\\d+|[-]?\\d*\\.\\d+[eE]\\d+)";
+
+ $$.util.regex.rgba = "rgb[a]?\\(("+ $$.util.regex.number +"[%]?)\\s*,\\s*("+ $$.util.regex.number +"[%]?)\\s*,\\s*("+ $$.util.regex.number +"[%]?)(?:\\s*,\\s*("+ $$.util.regex.number +"))?\\)";
+ $$.util.regex.rgbaNoBackRefs = "rgb[a]?\\((?:"+ $$.util.regex.number +"[%]?)\\s*,\\s*(?:"+ $$.util.regex.number +"[%]?)\\s*,\\s*(?:"+ $$.util.regex.number +"[%]?)(?:\\s*,\\s*(?:"+ $$.util.regex.number +"))?\\)";
+
+ $$.util.regex.hsla = "hsl[a]?\\(("+ $$.util.regex.number +")\\s*,\\s*("+ $$.util.regex.number +"[%])\\s*,\\s*("+ $$.util.regex.number +"[%])(?:\\s*,\\s*("+ $$.util.regex.number +"))?\\)";
+ $$.util.regex.hslaNoBackRefs = "hsl[a]?\\((?:"+ $$.util.regex.number +")\\s*,\\s*(?:"+ $$.util.regex.number +"[%])\\s*,\\s*(?:"+ $$.util.regex.number +"[%])(?:\\s*,\\s*(?:"+ $$.util.regex.number +"))?\\)";
+
+ $$.util.regex.hex3 = "\\#[0-9a-fA-F]{3}";
+ $$.util.regex.hex6 = "\\#[0-9a-fA-F]{6}";
+
+ var raf = !window ? null : ( window.requestAnimationFrame || window.mozRequestAnimationFrame ||
+ window.webkitRequestAnimationFrame || window.msRequestAnimationFrame );
+
+ raf = raf || function(fn){ if(fn){ setTimeout(fn, 1000/60); } };
+
+ $$.util.requestAnimationFrame = function(fn){
+ raf( fn );
+ };
+
+})( cytoscape, typeof window === 'undefined' ? null : window );
+
+;(function($$){ 'use strict';
+
+ $$.math = {};
+
+ $$.math.signum = function(x){
+ if( x > 0 ){
+ return 1;
+ } else if( x < 0 ){
+ return -1;
+ } else {
+ return 0;
+ }
+ };
+
+ $$.math.distance = function( p1, p2 ){
+ var dx = p2.x - p1.x;
+ var dy = p2.y - p1.y;
+
+ return Math.sqrt( dx*dx + dy*dy );
+ };
+
+ // from http://en.wikipedia.org/wiki/Bézier_curve#Quadratic_curves
+ $$.math.qbezierAt = function(p0, p1, p2, t){
+ return (1 - t)*(1 - t)*p0 + 2*(1 - t)*t*p1 + t*t*p2;
+ };
+
+ $$.math.qbezierPtAt = function(p0, p1, p2, t){
+ return {
+ x: $$.math.qbezierAt( p0.x, p1.x, p2.x, t ),
+ y: $$.math.qbezierAt( p0.y, p1.y, p2.y, t )
+ };
+ };
+
+ $$.math.boundingBoxesIntersect = function( bb1, bb2 ){
+ // case: one bb to right of other
+ if( bb1.x1 > bb2.x2 ){ return false; }
+ if( bb2.x1 > bb1.x2 ){ return false; }
+
+ // case: one bb to left of other
+ if( bb1.x2 < bb2.x1 ){ return false; }
+ if( bb2.x2 < bb1.x1 ){ return false; }
+
+ // case: one bb above other
+ if( bb1.y2 < bb2.y1 ){ return false; }
+ if( bb2.y2 < bb1.y1 ){ return false; }
+
+ // case: one bb below other
+ if( bb1.y1 > bb2.y2 ){ return false; }
+ if( bb2.y1 > bb1.y2 ){ return false; }
+
+ // otherwise, must have some overlap
+ return true;
+ };
+
+ $$.math.inBoundingBox = function( bb, x, y ){
+ return bb.x1 <= x && x <= bb.x2 && bb.y1 <= y && y <= bb.y2;
+ };
+
+ $$.math.pointInBoundingBox = function( bb, pt ){
+ return this.inBoundingBox( bb, pt.x, pt.y );
+ };
+
+ $$.math.roundRectangleIntersectLine = function(
+ x, y, nodeX, nodeY, width, height, padding) {
+
+ var cornerRadius = this.getRoundRectangleRadius(width, height);
+
+ var halfWidth = width / 2;
+ var halfHeight = height / 2;
+
+ // Check intersections with straight line segments
+ var straightLineIntersections;
+
+ // Top segment, left to right
+ {
+ var topStartX = nodeX - halfWidth + cornerRadius - padding;
+ var topStartY = nodeY - halfHeight - padding;
+ var topEndX = nodeX + halfWidth - cornerRadius + padding;
+ var topEndY = topStartY;
+
+ straightLineIntersections = this.finiteLinesIntersect(
+ x, y, nodeX, nodeY, topStartX, topStartY, topEndX, topEndY, false);
+
+ if (straightLineIntersections.length > 0) {
+ return straightLineIntersections;
+ }
+ }
+
+ // Right segment, top to bottom
+ {
+ var rightStartX = nodeX + halfWidth + padding;
+ var rightStartY = nodeY - halfHeight + cornerRadius - padding;
+ var rightEndX = rightStartX;
+ var rightEndY = nodeY + halfHeight - cornerRadius + padding;
+
+ straightLineIntersections = this.finiteLinesIntersect(
+ x, y, nodeX, nodeY, rightStartX, rightStartY, rightEndX, rightEndY, false);
+
+ if (straightLineIntersections.length > 0) {
+ return straightLineIntersections;
+ }
+ }
+
+ // Bottom segment, left to right
+ {
+ var bottomStartX = nodeX - halfWidth + cornerRadius - padding;
+ var bottomStartY = nodeY + halfHeight + padding;
+ var bottomEndX = nodeX + halfWidth - cornerRadius + padding;
+ var bottomEndY = bottomStartY;
+
+ straightLineIntersections = this.finiteLinesIntersect(
+ x, y, nodeX, nodeY, bottomStartX, bottomStartY, bottomEndX, bottomEndY, false);
+
+ if (straightLineIntersections.length > 0) {
+ return straightLineIntersections;
+ }
+ }
+
+ // Left segment, top to bottom
+ {
+ var leftStartX = nodeX - halfWidth - padding;
+ var leftStartY = nodeY - halfHeight + cornerRadius - padding;
+ var leftEndX = leftStartX;
+ var leftEndY = nodeY + halfHeight - cornerRadius + padding;
+
+ straightLineIntersections = this.finiteLinesIntersect(
+ x, y, nodeX, nodeY, leftStartX, leftStartY, leftEndX, leftEndY, false);
+
+ if (straightLineIntersections.length > 0) {
+ return straightLineIntersections;
+ }
+ }
+
+ // Check intersections with arc segments
+ var arcIntersections;
+
+ // Top Left
+ {
+ var topLeftCenterX = nodeX - halfWidth + cornerRadius;
+ var topLeftCenterY = nodeY - halfHeight + cornerRadius;
+ arcIntersections = this.intersectLineCircle(
+ x, y, nodeX, nodeY,
+ topLeftCenterX, topLeftCenterY, cornerRadius + padding);
+
+ // Ensure the intersection is on the desired quarter of the circle
+ if (arcIntersections.length > 0
+ && arcIntersections[0] <= topLeftCenterX
+ && arcIntersections[1] <= topLeftCenterY) {
+ return [arcIntersections[0], arcIntersections[1]];
+ }
+ }
+
+ // Top Right
+ {
+ var topRightCenterX = nodeX + halfWidth - cornerRadius;
+ var topRightCenterY = nodeY - halfHeight + cornerRadius;
+ arcIntersections = this.intersectLineCircle(
+ x, y, nodeX, nodeY,
+ topRightCenterX, topRightCenterY, cornerRadius + padding);
+
+ // Ensure the intersection is on the desired quarter of the circle
+ if (arcIntersections.length > 0
+ && arcIntersections[0] >= topRightCenterX
+ && arcIntersections[1] <= topRightCenterY) {
+ return [arcIntersections[0], arcIntersections[1]];
+ }
+ }
+
+ // Bottom Right
+ {
+ var bottomRightCenterX = nodeX + halfWidth - cornerRadius;
+ var bottomRightCenterY = nodeY + halfHeight - cornerRadius;
+ arcIntersections = this.intersectLineCircle(
+ x, y, nodeX, nodeY,
+ bottomRightCenterX, bottomRightCenterY, cornerRadius + padding);
+
+ // Ensure the intersection is on the desired quarter of the circle
+ if (arcIntersections.length > 0
+ && arcIntersections[0] >= bottomRightCenterX
+ && arcIntersections[1] >= bottomRightCenterY) {
+ return [arcIntersections[0], arcIntersections[1]];
+ }
+ }
+
+ // Bottom Left
+ {
+ var bottomLeftCenterX = nodeX - halfWidth + cornerRadius;
+ var bottomLeftCenterY = nodeY + halfHeight - cornerRadius;
+ arcIntersections = this.intersectLineCircle(
+ x, y, nodeX, nodeY,
+ bottomLeftCenterX, bottomLeftCenterY, cornerRadius + padding);
+
+ // Ensure the intersection is on the desired quarter of the circle
+ if (arcIntersections.length > 0
+ && arcIntersections[0] <= bottomLeftCenterX
+ && arcIntersections[1] >= bottomLeftCenterY) {
+ return [arcIntersections[0], arcIntersections[1]];
+ }
+ }
+
+ return []; // if nothing
+ };
+
+ $$.math.roundRectangleIntersectBox = function(
+ boxX1, boxY1, boxX2, boxY2, width, height, centerX, centerY, padding) {
+
+ // We have the following shpae
+
+ // _____
+ // _| |_
+ // | |
+ // |_ _|
+ // |_____|
+ //
+ // With a quarter circle at each corner.
+
+ var cornerRadius = this.getRoundRectangleRadius(width, height);
+
+ var hBoxTopLeftX = centerX - width / 2 - padding;
+ var hBoxTopLeftY = centerY - height / 2 + cornerRadius - padding;
+ var hBoxBottomRightX = centerX + width / 2 + padding;
+ var hBoxBottomRightY = centerY + height / 2 - cornerRadius + padding;
+
+ var vBoxTopLeftX = centerX - width / 2 + cornerRadius - padding;
+ var vBoxTopLeftY = centerY - height / 2 - padding;
+ var vBoxBottomRightX = centerX + width / 2 - cornerRadius + padding;
+ var vBoxBottomRightY = centerY + height / 2 + padding;
+
+ // Check if the box is out of bounds
+ var boxMinX = Math.min(boxX1, boxX2);
+ var boxMaxX = Math.max(boxX1, boxX2);
+ var boxMinY = Math.min(boxY1, boxY2);
+ var boxMaxY = Math.max(boxY1, boxY2);
+
+ if (boxMaxX < hBoxTopLeftX) {
+ return false;
+ } else if (boxMinX > hBoxBottomRightX) {
+ return false;
+ }
+
+ if (boxMaxY < vBoxTopLeftY) {
+ return false;
+ } else if (boxMinY > vBoxBottomRightY) {
+ return false;
+ }
+
+ // Check if an hBox point is in given box
+ if (hBoxTopLeftX >= boxMinX && hBoxTopLeftX <= boxMaxX
+ && hBoxTopLeftY >= boxMinY && hBoxTopLeftY <= boxMaxY) {
+ return true;
+ }
+
+ if (hBoxBottomRightX >= boxMinX && hBoxBottomRightX <= boxMaxX
+ && hBoxTopLeftY >= boxMinY && hBoxTopLeftY <= boxMaxY) {
+ return true;
+ }
+
+ if (hBoxBottomRightX >= boxMinX && hBoxBottomRightX <= boxMaxX
+ && hBoxBottomRightY >= boxMinY && hBoxBottomRightY <= boxMaxY) {
+ return true;
+ }
+
+ if (hBoxTopLeftX >= boxMinX && hBoxTopLeftX <= boxMaxX
+ && hBoxBottomRightY >= boxMinY && hBoxBottomRightY <= boxMaxY) {
+ return true;
+ }
+
+ // Check if a given point box is in the hBox
+ if (boxMinX >= hBoxTopLeftX && boxMinX <= hBoxBottomRightX
+ && boxMinY >= hBoxTopLeftY && boxMinY <= hBoxBottomRightY) {
+ return true;
+ }
+
+ if (boxMaxX >= hBoxTopLeftX && boxMaxX <= hBoxBottomRightX
+ && boxMinY >= hBoxTopLeftY && boxMinY <= hBoxBottomRightY) {
+ return true;
+ }
+
+ if (boxMaxX >= hBoxTopLeftX && boxMaxX <= hBoxBottomRightX
+ && boxMaxY >= hBoxTopLeftY && boxMaxY <= hBoxBottomRightY) {
+ return true;
+ }
+
+ if (boxMinX >= hBoxTopLeftX && boxMinX <= hBoxBottomRightX
+ && boxMaxY >= hBoxTopLeftY && boxMaxY <= hBoxBottomRightY) {
+ return true;
+ }
+
+ // Check if an vBox point is in given box
+ if (vBoxTopLeftX >= boxMinX && vBoxTopLeftX <= boxMaxX
+ && vBoxTopLeftY >= boxMinY && vBoxTopLeftY <= boxMaxY) {
+ return true;
+ }
+
+ if (vBoxBottomRightX >= boxMinX && vBoxBottomRightX <= boxMaxX
+ && vBoxTopLeftY >= boxMinY && vBoxTopLeftY <= boxMaxY) {
+ return true;
+ }
+
+ if (vBoxBottomRightX >= boxMinX && vBoxBottomRightX <= boxMaxX
+ && vBoxBottomRightY >= boxMinY && vBoxBottomRightY <= boxMaxY) {
+ return true;
+ }
+
+ if (vBoxTopLeftX >= boxMinX && vBoxTopLeftX <= boxMaxX
+ && vBoxBottomRightY >= boxMinY && vBoxBottomRightY <= boxMaxY) {
+ return true;
+ }
+
+ // Check if a given point box is in the vBox
+ if (boxMinX >= vBoxTopLeftX && boxMinX <= vBoxBottomRightX
+ && boxMinY >= vBoxTopLeftY && boxMinY <= vBoxBottomRightY) {
+ return true;
+ }
+
+ if (boxMaxX >= vBoxTopLeftX && boxMaxX <= vBoxBottomRightX
+ && boxMinY >= vBoxTopLeftY && boxMinY <= vBoxBottomRightY) {
+ return true;
+ }
+
+ if (boxMaxX >= vBoxTopLeftX && boxMaxX <= vBoxBottomRightX
+ && boxMaxY >= vBoxTopLeftY && boxMaxY <= vBoxBottomRightY) {
+ return true;
+ }
+
+ if (boxMinX >= vBoxTopLeftX && boxMinX <= vBoxBottomRightX
+ && boxMaxY >= vBoxTopLeftY && boxMaxY <= vBoxBottomRightY) {
+ return true;
+ }
+
+ // Lastly, check if one of the ellipses coincide with the box
+
+ if (this.boxIntersectEllipse(boxMinX, boxMinY, boxMaxX, boxMaxY, padding,
+ cornerRadius * 2, cornerRadius * 2, vBoxTopLeftX + padding, hBoxTopLeftY + padding)) {
+ return true;
+ }
+
+ if (this.boxIntersectEllipse(boxMinX, boxMinY, boxMaxX, boxMaxY, padding,
+ cornerRadius * 2, cornerRadius * 2, vBoxBottomRightX - padding, hBoxTopLeftY + padding)) {
+ return true;
+ }
+
+ if (this.boxIntersectEllipse(boxMinX, boxMinY, boxMaxX, boxMaxY, padding,
+ cornerRadius * 2, cornerRadius * 2, vBoxBottomRightX - padding, hBoxBottomRightY - padding)) {
+ return true;
+ }
+
+ if (this.boxIntersectEllipse(boxMinX, boxMinY, boxMaxX, boxMaxY, padding,
+ cornerRadius * 2, cornerRadius * 2, vBoxTopLeftX + padding, hBoxBottomRightY - padding)) {
+ return true;
+ }
+
+ return false;
+ };
+
+ // @O Approximate collision functions
+ $$.math.checkInBoundingCircle = function(
+ x, y, farthestPointSqDistance, padding, width, height, centerX, centerY) {
+
+ x = (x - centerX) / (width + padding);
+ y = (y - centerY) / (height + padding);
+
+ return (x * x + y * y) <= farthestPointSqDistance;
+ };
+
+ $$.math.boxInBezierVicinity = function(
+ x1box, y1box, x2box, y2box, x1, y1, x2, y2, x3, y3, tolerance) {
+
+ // Return values:
+ // 0 - curve is not in box
+ // 1 - curve may be in box; needs precise check
+ // 2 - curve is in box
+
+ // midpoint
+ var midX = 0.25 * x1 + 0.5 * x2 + 0.25 * x3;
+ var midY = 0.25 * y1 + 0.5 * y2 + 0.25 * y3;
+
+ var boxMinX = Math.min(x1box, x2box) - tolerance;
+ var boxMinY = Math.min(y1box, y2box) - tolerance;
+ var boxMaxX = Math.max(x1box, x2box) + tolerance;
+ var boxMaxY = Math.max(y1box, y2box) + tolerance;
+
+ if (x1 >= boxMinX && x1 <= boxMaxX && y1 >= boxMinY && y1 <= boxMaxY) { // (x1, y1) in box
+ return 1;
+ } else if (x3 >= boxMinX && x3 <= boxMaxX && y3 >= boxMinY && y3 <= boxMaxY) { // (x3, y3) in box
+ return 1;
+ } else if (midX >= boxMinX && midX <= boxMaxX && midY >= boxMinY && midY <= boxMaxY) { // (midX, midY) in box
+ return 1;
+ } else if (x2 >= boxMinX && x2 <= boxMaxX && y2 >= boxMinY && y2 <= boxMaxY) { // ctrl pt in box
+ return 1;
+ }
+
+ var curveMinX = Math.min(x1, midX, x3);
+ var curveMinY = Math.min(y1, midY, y3);
+ var curveMaxX = Math.max(x1, midX, x3);
+ var curveMaxY = Math.max(y1, midY, y3);
+
+ /*
+ console.log(curveMinX + ", " + curveMinY + ", " + curveMaxX
+ + ", " + curveMaxY);
+ if (curveMinX == undefined) {
+ console.log("undefined curveMinX: " + x1 + ", " + x2 + ", " + x3);
+ }
+ */
+
+ if (curveMinX > boxMaxX
+ || curveMaxX < boxMinX
+ || curveMinY > boxMaxY
+ || curveMaxY < boxMinY) {
+
+ return 0;
+ }
+
+ return 1;
+ };
+
+ $$.math.checkBezierInBox = function(
+ x1box, y1box, x2box, y2box, x1, y1, x2, y2, x3, y3, tolerance) {
+
+ function sampleInBox(t){
+ var x = $$.math.qbezierAt(x1, x2, x3, t);
+ var y = $$.math.qbezierAt(y1, y2, y3, t);
+
+ return x1box <= x && x <= x2box
+ && y1box <= y && y <= y2box
+ ;
+ }
+
+ for( var t = 0; t <= 1; t += 0.25 ){
+ if( !sampleInBox(t) ){
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ $$.math.checkStraightEdgeInBox = function(
+ x1box, y1box, x2box, y2box, x1, y1, x2, y2, tolerance) {
+
+ return x1box <= x1 && x1 <= x2box
+ && x1box <= x2 && x2 <= x2box
+ && y1box <= y1 && y1 <= y2box
+ && y1box <= y2 && y2 <= y2box
+ ;
+ };
+
+ $$.math.checkStraightEdgeCrossesBox = function(
+ x1box, y1box, x2box, y2box, x1, y1, x2, y2, tolerance) {
+
+ //console.log(arguments);
+
+ var boxMinX = Math.min(x1box, x2box) - tolerance;
+ var boxMinY = Math.min(y1box, y2box) - tolerance;
+ var boxMaxX = Math.max(x1box, x2box) + tolerance;
+ var boxMaxY = Math.max(y1box, y2box) + tolerance;
+
+ // Check left + right bounds
+ var aX = x2 - x1;
+ var bX = x1;
+ var yValue;
+
+ // Top and bottom
+ var aY = y2 - y1;
+ var bY = y1;
+ var xValue;
+
+ if (Math.abs(aX) < 0.0001) {
+ return (x1 >= boxMinX && x1 <= boxMaxX
+ && Math.min(y1, y2) <= boxMinY
+ && Math.max(y1, y2) >= boxMaxY);
+ }
+
+ var tLeft = (boxMinX - bX) / aX;
+ if (tLeft > 0 && tLeft <= 1) {
+ yValue = aY * tLeft + bY;
+ if (yValue >= boxMinY && yValue <= boxMaxY) {
+ return true;
+ }
+ }
+
+ var tRight = (boxMaxX - bX) / aX;
+ if (tRight > 0 && tRight <= 1) {
+ yValue = aY * tRight + bY;
+ if (yValue >= boxMinY && yValue <= boxMaxY) {
+ return true;
+ }
+ }
+
+ var tTop = (boxMinY - bY) / aY;
+ if (tTop > 0 && tTop <= 1) {
+ xValue = aX * tTop + bX;
+ if (xValue >= boxMinX && xValue <= boxMaxX) {
+ return true;
+ }
+ }
+
+ var tBottom = (boxMaxY - bY) / aY;
+ if (tBottom > 0 && tBottom <= 1) {
+ xValue = aX * tBottom + bX;
+ if (xValue >= boxMinX && xValue <= boxMaxX) {
+ return true;
+ }
+ }
+
+ return false;
+ };
+
+ $$.math.checkBezierCrossesBox = function(
+ x1box, y1box, x2box, y2box, x1, y1, x2, y2, x3, y3, tolerance) {
+
+ var boxMinX = Math.min(x1box, x2box) - tolerance;
+ var boxMinY = Math.min(y1box, y2box) - tolerance;
+ var boxMaxX = Math.max(x1box, x2box) + tolerance;
+ var boxMaxY = Math.max(y1box, y2box) + tolerance;
+
+ if (x1 >= boxMinX && x1 <= boxMaxX && y1 >= boxMinY && y1 <= boxMaxY) {
+ return true;
+ } else if (x3 >= boxMinX && x3 <= boxMaxX && y3 >= boxMinY && y3 <= boxMaxY) {
+ return true;
+ }
+
+ var aX = x1 - 2 * x2 + x3;
+ var bX = -2 * x1 + 2 * x2;
+ var cX = x1;
+
+ var xIntervals = [];
+
+ if (Math.abs(aX) < 0.0001) {
+ var leftParam = (boxMinX - x1) / bX;
+ var rightParam = (boxMaxX - x1) / bX;
+
+ xIntervals.push(leftParam, rightParam);
+ } else {
+ // Find when x coordinate of the curve crosses the left side of the box
+ var discriminantX1 = bX * bX - 4 * aX * (cX - boxMinX);
+ var tX1, tX2;
+ if (discriminantX1 > 0) {
+ var sqrt = Math.sqrt(discriminantX1);
+ tX1 = (-bX + sqrt) / (2 * aX);
+ tX2 = (-bX - sqrt) / (2 * aX);
+
+ xIntervals.push(tX1, tX2);
+ }
+
+ var discriminantX2 = bX * bX - 4 * aX * (cX - boxMaxX);
+ var tX3, tX4;
+ if (discriminantX2 > 0) {
+ var sqrt = Math.sqrt(discriminantX2);
+ tX3 = (-bX + sqrt) / (2 * aX);
+ tX4 = (-bX - sqrt) / (2 * aX);
+
+ xIntervals.push(tX3, tX4);
+ }
+ }
+
+ xIntervals.sort(function(a, b) { return a - b; });
+
+ var aY = y1 - 2 * y2 + y3;
+ var bY = -2 * y1 + 2 * y2;
+ var cY = y1;
+
+ var yIntervals = [];
+
+ if (Math.abs(aY) < 0.0001) {
+ var topParam = (boxMinY - y1) / bY;
+ var bottomParam = (boxMaxY - y1) / bY;
+
+ yIntervals.push(topParam, bottomParam);
+ } else {
+ var discriminantY1 = bY * bY - 4 * aY * (cY - boxMinY);
+
+ var tY1, tY2;
+ if (discriminantY1 > 0) {
+ var sqrt = Math.sqrt(discriminantY1);
+ tY1 = (-bY + sqrt) / (2 * aY);
+ tY2 = (-bY - sqrt) / (2 * aY);
+
+ yIntervals.push(tY1, tY2);
+ }
+
+ var discriminantY2 = bY * bY - 4 * aY * (cY - boxMaxY);
+
+ var tY3, tY4;
+ if (discriminantY2 > 0) {
+ var sqrt = Math.sqrt(discriminantY2);
+ tY3 = (-bY + sqrt) / (2 * aY);
+ tY4 = (-bY - sqrt) / (2 * aY);
+
+ yIntervals.push(tY3, tY4);
+ }
+ }
+
+ yIntervals.sort(function(a, b) { return a - b; });
+
+ for (var index = 0; index < xIntervals.length; index += 2) {
+ for (var yIndex = 1; yIndex < yIntervals.length; yIndex += 2) {
+
+ // Check if there exists values for the Bezier curve
+ // parameter between 0 and 1 where both the curve's
+ // x and y coordinates are within the bounds specified by the box
+ if (xIntervals[index] < yIntervals[yIndex]
+ && yIntervals[yIndex] >= 0.0
+ && xIntervals[index] <= 1.0
+ && xIntervals[index + 1] > yIntervals[yIndex - 1]
+ && yIntervals[yIndex - 1] <= 1.0
+ && xIntervals[index + 1] >= 0.0) {
+
+ return true;
+ }
+ }
+ }
+
+ return false;
+ };
+
+ $$.math.inLineVicinity = function(x, y, lx1, ly1, lx2, ly2, tolerance){
+ var t = tolerance;
+
+ var x1 = Math.min(lx1, lx2);
+ var x2 = Math.max(lx1, lx2);
+ var y1 = Math.min(ly1, ly2);
+ var y2 = Math.max(ly1, ly2);
+
+ return x1 - t <= x && x <= x2 + t
+ && y1 - t <= y && y <= y2 + t;
+ };
+
+ $$.math.inBezierVicinity = function(
+ x, y, x1, y1, x2, y2, x3, y3, toleranceSquared) {
+
+ var bb = {
+ x1: Math.min( x1, x3, x2 ),
+ x2: Math.max( x1, x3, x2 ),
+ y1: Math.min( y1, y3, y2 ),
+ y2: Math.max( y1, y3, y2 )
+ };
+
+ // if outside the rough bounding box for the bezier, then it can't be a hit
+ if( x < bb.x1 || x > bb.x2 || y < bb.y1 || y > bb.y2 ){
+ // console.log('bezier out of rough bb')
+ return false;
+ } else {
+ // console.log('do more expensive check');
+ return true;
+ }
+
+ };
+
+ $$.math.solveCubic = function(a, b, c, d, result) {
+
+ // Solves a cubic function, returns root in form [r1, i1, r2, i2, r3, i3], where
+ // r is the real component, i is the imaginary component
+
+ // An implementation of the Cardano method from the year 1545
+ // http://en.wikipedia.org/wiki/Cubic_function#The_nature_of_the_roots
+
+ b /= a;
+ c /= a;
+ d /= a;
+
+ var discriminant, q, r, dum1, s, t, term1, r13;
+
+ q = (3.0 * c - (b * b)) / 9.0;
+ r = -(27.0 * d) + b * (9.0 * c - 2.0 * (b * b));
+ r /= 54.0;
+
+ discriminant = q * q * q + r * r;
+ result[1] = 0;
+ term1 = (b / 3.0);
+
+ if (discriminant > 0) {
+ s = r + Math.sqrt(discriminant);
+ s = ((s < 0) ? -Math.pow(-s, (1.0 / 3.0)) : Math.pow(s, (1.0 / 3.0)));
+ t = r - Math.sqrt(discriminant);
+ t = ((t < 0) ? -Math.pow(-t, (1.0 / 3.0)) : Math.pow(t, (1.0 / 3.0)));
+ result[0] = -term1 + s + t;
+ term1 += (s + t) / 2.0;
+ result[4] = result[2] = -term1;
+ term1 = Math.sqrt(3.0) * (-t + s) / 2;
+ result[3] = term1;
+ result[5] = -term1;
+ return;
+ }
+
+ result[5] = result[3] = 0;
+
+ if (discriminant === 0) {
+ r13 = ((r < 0) ? -Math.pow(-r, (1.0 / 3.0)) : Math.pow(r, (1.0 / 3.0)));
+ result[0] = -term1 + 2.0 * r13;
+ result[4] = result[2] = -(r13 + term1);
+ return;
+ }
+
+ q = -q;
+ dum1 = q * q * q;
+ dum1 = Math.acos(r / Math.sqrt(dum1));
+ r13 = 2.0 * Math.sqrt(q);
+ result[0] = -term1 + r13 * Math.cos(dum1 / 3.0);
+ result[2] = -term1 + r13 * Math.cos((dum1 + 2.0 * Math.PI) / 3.0);
+ result[4] = -term1 + r13 * Math.cos((dum1 + 4.0 * Math.PI) / 3.0);
+
+ return;
+ };
+
+ $$.math.sqDistanceToQuadraticBezier = function(
+ x, y, x1, y1, x2, y2, x3, y3) {
+
+ // Find minimum distance by using the minimum of the distance
+ // function between the given point and the curve
+
+ // This gives the coefficients of the resulting cubic equation
+ // whose roots tell us where a possible minimum is
+ // (Coefficients are divided by 4)
+
+ var a = 1.0 * x1*x1 - 4*x1*x2 + 2*x1*x3 + 4*x2*x2 - 4*x2*x3 + x3*x3
+ + y1*y1 - 4*y1*y2 + 2*y1*y3 + 4*y2*y2 - 4*y2*y3 + y3*y3;
+
+ var b = 1.0 * 9*x1*x2 - 3*x1*x1 - 3*x1*x3 - 6*x2*x2 + 3*x2*x3
+ + 9*y1*y2 - 3*y1*y1 - 3*y1*y3 - 6*y2*y2 + 3*y2*y3;
+
+ var c = 1.0 * 3*x1*x1 - 6*x1*x2 + x1*x3 - x1*x + 2*x2*x2 + 2*x2*x - x3*x
+ + 3*y1*y1 - 6*y1*y2 + y1*y3 - y1*y + 2*y2*y2 + 2*y2*y - y3*y;
+
+ var d = 1.0 * x1*x2 - x1*x1 + x1*x - x2*x
+ + y1*y2 - y1*y1 + y1*y - y2*y;
+
+ // debug("coefficients: " + a / a + ", " + b / a + ", " + c / a + ", " + d / a);
+
+ var roots = [];
+
+ // Use the cubic solving algorithm
+ this.solveCubic(a, b, c, d, roots);
+
+ var zeroThreshold = 0.0000001;
+
+ var params = [];
+
+ for (var index = 0; index < 6; index += 2) {
+ if (Math.abs(roots[index + 1]) < zeroThreshold
+ && roots[index] >= 0
+ && roots[index] <= 1.0) {
+ params.push(roots[index]);
+ }
+ }
+
+ params.push(1.0);
+ params.push(0.0);
+
+ var minDistanceSquared = -1;
+ var closestParam;
+
+ var curX, curY, distSquared;
+ for (var i = 0; i < params.length; i++) {
+ curX = Math.pow(1.0 - params[i], 2.0) * x1
+ + 2.0 * (1 - params[i]) * params[i] * x2
+ + params[i] * params[i] * x3;
+
+ curY = Math.pow(1 - params[i], 2.0) * y1
+ + 2 * (1.0 - params[i]) * params[i] * y2
+ + params[i] * params[i] * y3;
+
+ distSquared = Math.pow(curX - x, 2) + Math.pow(curY - y, 2);
+ // debug('distance for param ' + params[i] + ": " + Math.sqrt(distSquared));
+ if (minDistanceSquared >= 0) {
+ if (distSquared < minDistanceSquared) {
+ minDistanceSquared = distSquared;
+ closestParam = params[i];
+ }
+ } else {
+ minDistanceSquared = distSquared;
+ closestParam = params[i];
+ }
+ }
+
+ /*
+ debugStats.clickX = x;
+ debugStats.clickY = y;
+
+ debugStats.closestX = Math.pow(1.0 - closestParam, 2.0) * x1
+ + 2.0 * (1.0 - closestParam) * closestParam * x2
+ + closestParam * closestParam * x3;
+
+ debugStats.closestY = Math.pow(1.0 - closestParam, 2.0) * y1
+ + 2.0 * (1.0 - closestParam) * closestParam * y2
+ + closestParam * closestParam * y3;
+ */
+
+ // debug("given: "
+ // + "( " + x + ", " + y + "), "
+ // + "( " + x1 + ", " + y1 + "), "
+ // + "( " + x2 + ", " + y2 + "), "
+ // + "( " + x3 + ", " + y3 + ")");
+
+
+ // debug("roots: " + roots);
+ // debug("params: " + params);
+ // debug("closest param: " + closestParam);
+ return minDistanceSquared;
+ };
+
+ $$.math.sqDistanceToFiniteLine = function(x, y, x1, y1, x2, y2) {
+ var offset = [x - x1, y - y1];
+ var line = [x2 - x1, y2 - y1];
+
+ var lineSq = line[0] * line[0] + line[1] * line[1];
+ var hypSq = offset[0] * offset[0] + offset[1] * offset[1];
+
+ var dotProduct = offset[0] * line[0] + offset[1] * line[1];
+ var adjSq = dotProduct * dotProduct / lineSq;
+
+ if (dotProduct < 0) {
+ return hypSq;
+ }
+
+ if (adjSq > lineSq) {
+ return (x - x2) * (x - x2) + (y - y2) * (y - y2);
+ }
+
+ return hypSq - adjSq;
+ };
+
+ $$.math.pointInsidePolygon = function(
+ x, y, basePoints, centerX, centerY, width, height, direction, padding) {
+
+ //var direction = arguments[6];
+ var transformedPoints = new Array(basePoints.length);
+
+ // Gives negative angle
+ var angle = Math.asin(direction[1] / (Math.sqrt(direction[0] * direction[0]
+ + direction[1] * direction[1])));
+
+ if (direction[0] < 0) {
+ angle = angle + Math.PI / 2;
+ } else {
+ angle = -angle - Math.PI / 2;
+ }
+
+ var cos = Math.cos(-angle);
+ var sin = Math.sin(-angle);
+
+// console.log("base: " + basePoints);
+ for (var i = 0; i < transformedPoints.length / 2; i++) {
+ transformedPoints[i * 2] =
+ width / 2 * (basePoints[i * 2] * cos
+ - basePoints[i * 2 + 1] * sin);
+
+ transformedPoints[i * 2 + 1] =
+ height / 2 * (basePoints[i * 2 + 1] * cos
+ + basePoints[i * 2] * sin);
+
+ transformedPoints[i * 2] += centerX;
+ transformedPoints[i * 2 + 1] += centerY;
+ }
+
+ var points;
+
+ if (padding > 0) {
+ var expandedLineSet = this.expandPolygon(
+ transformedPoints,
+ -padding);
+
+ points = this.joinLines(expandedLineSet);
+ } else {
+ points = transformedPoints;
+ }
+
+ var x1, y1, x2, y2;
+ var y3;
+
+ // Intersect with vertical line through (x, y)
+ var up = 0;
+ var down = 0;
+ for (var i = 0; i < points.length / 2; i++) {
+
+ x1 = points[i * 2];
+ y1 = points[i * 2 + 1];
+
+ if (i + 1 < points.length / 2) {
+ x2 = points[(i + 1) * 2];
+ y2 = points[(i + 1) * 2 + 1];
+ } else {
+ x2 = points[(i + 1 - points.length / 2) * 2];
+ y2 = points[(i + 1 - points.length / 2) * 2 + 1];
+ }
+
+//* console.log("line from (" + x1 + ", " + y1 + ") to (" + x2 + ", " + y2 + ")");
+
+//& console.log(x1, x, x2);
+
+ if (x1 == x && x2 == x) {
+
+ } else if ((x1 >= x && x >= x2)
+ || (x1 <= x && x <= x2)) {
+
+ y3 = (x - x1) / (x2 - x1) * (y2 - y1) + y1;
+
+ if (y3 > y) {
+ up++;
+ }
+
+ if (y3 < y) {
+ down++;
+ }
+
+//* console.log(y3, y);
+
+ } else {
+//* console.log('22');
+ continue;
+ }
+
+ }
+
+//* console.log("up: " + up + ", down: " + down);
+
+ if (up % 2 === 0) {
+ return false;
+ } else {
+ return true;
+ }
+ };
+
+ $$.math.joinLines = function(lineSet) {
+
+ var vertices = new Array(lineSet.length / 2);
+
+ var currentLineStartX, currentLineStartY, currentLineEndX, currentLineEndY;
+ var nextLineStartX, nextLineStartY, nextLineEndX, nextLineEndY;
+
+ for (var i = 0; i < lineSet.length / 4; i++) {
+ currentLineStartX = lineSet[i * 4];
+ currentLineStartY = lineSet[i * 4 + 1];
+ currentLineEndX = lineSet[i * 4 + 2];
+ currentLineEndY = lineSet[i * 4 + 3];
+
+ if (i < lineSet.length / 4 - 1) {
+ nextLineStartX = lineSet[(i + 1) * 4];
+ nextLineStartY = lineSet[(i + 1) * 4 + 1];
+ nextLineEndX = lineSet[(i + 1) * 4 + 2];
+ nextLineEndY = lineSet[(i + 1) * 4 + 3];
+ } else {
+ nextLineStartX = lineSet[0];
+ nextLineStartY = lineSet[1];
+ nextLineEndX = lineSet[2];
+ nextLineEndY = lineSet[3];
+ }
+
+ var intersection = this.finiteLinesIntersect(
+ currentLineStartX, currentLineStartY,
+ currentLineEndX, currentLineEndY,
+ nextLineStartX, nextLineStartY,
+ nextLineEndX, nextLineEndY,
+ true);
+
+ vertices[i * 2] = intersection[0];
+ vertices[i * 2 + 1] = intersection[1];
+ }
+
+ return vertices;
+ };
+
+ $$.math.expandPolygon = function(points, pad) {
+
+ var expandedLineSet = new Array(points.length * 2);
+
+ var currentPointX, currentPointY, nextPointX, nextPointY;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ currentPointX = points[i * 2];
+ currentPointY = points[i * 2 + 1];
+
+ if (i < points.length / 2 - 1) {
+ nextPointX = points[(i + 1) * 2];
+ nextPointY = points[(i + 1) * 2 + 1];
+ } else {
+ nextPointX = points[0];
+ nextPointY = points[1];
+ }
+
+ // Current line: [currentPointX, currentPointY] to [nextPointX, nextPointY]
+
+ // Assume CCW polygon winding
+
+ var offsetX = (nextPointY - currentPointY);
+ var offsetY = -(nextPointX - currentPointX);
+
+ // Normalize
+ var offsetLength = Math.sqrt(offsetX * offsetX + offsetY * offsetY);
+ var normalizedOffsetX = offsetX / offsetLength;
+ var normalizedOffsetY = offsetY / offsetLength;
+
+ expandedLineSet[i * 4] = currentPointX + normalizedOffsetX * pad;
+ expandedLineSet[i * 4 + 1] = currentPointY + normalizedOffsetY * pad;
+ expandedLineSet[i * 4 + 2] = nextPointX + normalizedOffsetX * pad;
+ expandedLineSet[i * 4 + 3] = nextPointY + normalizedOffsetY * pad;
+ }
+
+ return expandedLineSet;
+ };
+
+ $$.math.intersectLineEllipse = function(
+ x, y, centerX, centerY, ellipseWradius, ellipseHradius) {
+
+ var dispX = centerX - x;
+ var dispY = centerY - y;
+
+ dispX /= ellipseWradius;
+ dispY /= ellipseHradius;
+
+ var len = Math.sqrt(dispX * dispX + dispY * dispY);
+
+ var newLength = len - 1;
+
+ if (newLength < 0) {
+ return [];
+ }
+
+ var lenProportion = newLength / len;
+
+ return [(centerX - x) * lenProportion + x, (centerY - y) * lenProportion + y];
+ };
+
+ $$.math.dotProduct = function(
+ vec1, vec2) {
+
+ if (vec1.length != 2 || vec2.length != 2) {
+ throw 'dot product: arguments are not vectors';
+ }
+
+ return (vec1[0] * vec2[0] + vec1[1] * vec2[1]);
+ };
+
+ // Returns intersections of increasing distance from line's start point
+ $$.math.intersectLineCircle = function(
+ x1, y1, x2, y2, centerX, centerY, radius) {
+
+ // Calculate d, direction vector of line
+ var d = [x2 - x1, y2 - y1]; // Direction vector of line
+ var c = [centerX, centerY]; // Center of circle
+ var f = [x1 - centerX, y1 - centerY];
+
+ var a = d[0] * d[0] + d[1] * d[1];
+ var b = 2 * (f[0] * d[0] + f[1] * d[1]);
+ var c = (f[0] * f[0] + f[1] * f[1]) - radius * radius ;
+
+ var discriminant = b*b-4*a*c;
+
+ if (discriminant < 0) {
+ return [];
+ }
+
+ var t1 = (-b + Math.sqrt(discriminant)) / (2 * a);
+ var t2 = (-b - Math.sqrt(discriminant)) / (2 * a);
+
+ var tMin = Math.min(t1, t2);
+ var tMax = Math.max(t1, t2);
+ var inRangeParams = [];
+
+ if (tMin >= 0 && tMin <= 1) {
+ inRangeParams.push(tMin);
+ }
+
+ if (tMax >= 0 && tMax <= 1) {
+ inRangeParams.push(tMax);
+ }
+
+ if (inRangeParams.length === 0) {
+ return [];
+ }
+
+ var nearIntersectionX = inRangeParams[0] * d[0] + x1;
+ var nearIntersectionY = inRangeParams[0] * d[1] + y1;
+
+ if (inRangeParams.length > 1) {
+
+ if (inRangeParams[0] == inRangeParams[1]) {
+ return [nearIntersectionX, nearIntersectionY];
+ } else {
+
+ var farIntersectionX = inRangeParams[1] * d[0] + x1;
+ var farIntersectionY = inRangeParams[1] * d[1] + y1;
+
+ return [nearIntersectionX, nearIntersectionY, farIntersectionX, farIntersectionY];
+ }
+
+ } else {
+ return [nearIntersectionX, nearIntersectionY];
+ }
+
+ };
+
+ $$.math.findCircleNearPoint = function(centerX, centerY,
+ radius, farX, farY) {
+
+ var displacementX = farX - centerX;
+ var displacementY = farY - centerY;
+ var distance = Math.sqrt(displacementX * displacementX
+ + displacementY * displacementY);
+
+ var unitDisplacementX = displacementX / distance;
+ var unitDisplacementY = displacementY / distance;
+
+ return [centerX + unitDisplacementX * radius,
+ centerY + unitDisplacementY * radius];
+ };
+
+ $$.math.findMaxSqDistanceToOrigin = function(points) {
+ var maxSqDistance = 0.000001;
+ var sqDistance;
+
+ for (var i = 0; i < points.length / 2; i++) {
+
+ sqDistance = points[i * 2] * points[i * 2]
+ + points[i * 2 + 1] * points[i * 2 + 1];
+
+ if (sqDistance > maxSqDistance) {
+ maxSqDistance = sqDistance;
+ }
+ }
+
+ return maxSqDistance;
+ };
+
+ $$.math.finiteLinesIntersect = function(
+ x1, y1, x2, y2, x3, y3, x4, y4, infiniteLines) {
+
+ var ua_t = (x4 - x3) * (y1 - y3) - (y4 - y3) * (x1 - x3);
+ var ub_t = (x2 - x1) * (y1 - y3) - (y2 - y1) * (x1 - x3);
+ var u_b = (y4 - y3) * (x2 - x1) - (x4 - x3) * (y2 - y1);
+
+ if (u_b !== 0) {
+ var ua = ua_t / u_b;
+ var ub = ub_t / u_b;
+
+ if (0 <= ua && ua <= 1 && 0 <= ub && ub <= 1) {
+ return [x1 + ua * (x2 - x1), y1 + ua * (y2 - y1)];
+
+ } else {
+ if (!infiniteLines) {
+ return [];
+ } else {
+ return [x1 + ua * (x2 - x1), y1 + ua * (y2 - y1)];
+ }
+ }
+ } else {
+ if (ua_t === 0 || ub_t === 0) {
+
+ // Parallel, coincident lines. Check if overlap
+
+ // Check endpoint of second line
+ if ([x1, x2, x4].sort()[1] === x4) {
+ return [x4, y4];
+ }
+
+ // Check start point of second line
+ if ([x1, x2, x3].sort()[1] === x3) {
+ return [x3, y3];
+ }
+
+ // Endpoint of first line
+ if ([x3, x4, x2].sort()[1] === x2) {
+ return [x2, y2];
+ }
+
+ return [];
+ } else {
+
+ // Parallel, non-coincident
+ return [];
+ }
+ }
+ };
+
+ // (boxMinX, boxMinY, boxMaxX, boxMaxY, padding,
+ // cornerRadius * 2, cornerRadius * 2, vBoxTopLeftX + padding, hBoxTopLeftY + padding)) {
+
+ $$.math.boxIntersectEllipse = function(
+ x1, y1, x2, y2, padding, width, height, centerX, centerY) {
+
+ if (x2 < x1) {
+ var oldX1 = x1;
+ x1 = x2;
+ x2 = oldX1;
+ }
+
+ if (y2 < y1) {
+ var oldY1 = y1;
+ y1 = y2;
+ y2 = oldY1;
+ }
+
+ // 4 ortho extreme points
+ var west = [centerX - width / 2 - padding, centerY];
+ var east = [centerX + width / 2 + padding, centerY];
+ var north = [centerX, centerY - height / 2 - padding];
+ var south = [centerX, centerY + height / 2 + padding];
+
+ // out of bounds: return false
+ if (x2 < west[0]) {
+ return false;
+ }
+
+ if (x1 > east[0]) {
+ return false;
+ }
+
+ if (y1 > south[1]) {
+ return false;
+ }
+
+ if (y2 < north[1]) {
+ return false;
+ }
+
+ // 1 of 4 ortho extreme points in box: return true
+ if (x1 <= east[0] && east[0] <= x2
+ && y1 <= east[1] && east[1] <= y2) {
+ return true;
+ }
+
+ if (x1 <= west[0] && west[0] <= x2
+ && y1 <= west[1] && west[1] <= y2) {
+ return true;
+ }
+
+ if (x1 <= north[0] && north[0] <= x2
+ && y1 <= north[1] && north[1] <= y2) {
+ return true;
+ }
+
+ if (x1 <= south[0] && south[0] <= x2
+ && y1 <= south[1] && south[1] <= y2) {
+ return true;
+ }
+
+ // box corner in ellipse: return true
+ x1 = (x1 - centerX) / (width / 2 + padding);
+ x2 = (x2 - centerX) / (width / 2 + padding);
+
+ y1 = (y1 - centerY) / (height / 2 + padding);
+ y2 = (y2 - centerY) / (height / 2 + padding);
+
+ if (x1 * x1 + y1 * y1 <= 1) {
+ return true;
+ }
+
+ if (x2 * x2 + y1 * y1 <= 1) {
+ return true;
+ }
+
+ if (x2 * x2 + y2 * y2 <= 1) {
+ return true;
+ }
+
+ if (x1 * x1 + y2 * y2 <= 1) {
+ return true;
+ }
+
+ return false;
+ };
+
+ $$.math.boxIntersectPolygon = function(
+ x1, y1, x2, y2, basePoints, width, height, centerX, centerY, direction, padding) {
+
+// console.log(arguments);
+
+ if (x2 < x1) {
+ var oldX1 = x1;
+ x1 = x2;
+ x2 = oldX1;
+ }
+
+ if (y2 < y1) {
+ var oldY1 = y1;
+ y1 = y2;
+ y2 = oldY1;
+ }
+
+ var transformedPoints = new Array(basePoints.length);
+
+ // Gives negative of angle
+ var angle = Math.asin(direction[1] / (Math.sqrt(direction[0] * direction[0]
+ + direction[1] * direction[1])));
+
+ if (direction[0] < 0) {
+ angle = angle + Math.PI / 2;
+ } else {
+ angle = -angle - Math.PI / 2;
+ }
+
+ var cos = Math.cos(-angle);
+ var sin = Math.sin(-angle);
+
+ for (var i = 0; i < transformedPoints.length / 2; i++) {
+ transformedPoints[i * 2] =
+ width / 2 * (basePoints[i * 2] * cos
+ - basePoints[i * 2 + 1] * sin);
+
+ transformedPoints[i * 2 + 1] =
+ height / 2 * (basePoints[i * 2 + 1] * cos
+ + basePoints[i * 2] * sin);
+
+ transformedPoints[i * 2] += centerX;
+ transformedPoints[i * 2 + 1] += centerY;
+ }
+
+ // Assume transformedPoints.length > 0, and check if intersection is possible
+ var minTransformedX = transformedPoints[0];
+ var maxTransformedX = transformedPoints[0];
+ var minTransformedY = transformedPoints[1];
+ var maxTransformedY = transformedPoints[1];
+
+ for (var i = 1; i < transformedPoints.length / 2; i++) {
+ if (transformedPoints[i * 2] > maxTransformedX) {
+ maxTransformedX = transformedPoints[i * 2];
+ }
+
+ if (transformedPoints[i * 2] < minTransformedX) {
+ minTransformedX = transformedPoints[i * 2];
+ }
+
+ if (transformedPoints[i * 2 + 1] > maxTransformedY) {
+ maxTransformedY = transformedPoints[i * 2 + 1];
+ }
+
+ if (transformedPoints[i * 2 + 1] < minTransformedY) {
+ minTransformedY = transformedPoints[i * 2 + 1];
+ }
+ }
+
+ if (x2 < minTransformedX - padding) {
+ return false;
+ }
+
+ if (x1 > maxTransformedX + padding) {
+ return false;
+ }
+
+ if (y2 < minTransformedY - padding) {
+ return false;
+ }
+
+ if (y1 > maxTransformedY + padding) {
+ return false;
+ }
+
+ // Continue checking with padding-corrected points
+ var points;
+
+ if (padding > 0) {
+ var expandedLineSet = $$.math.expandPolygon(
+ transformedPoints,
+ -padding);
+
+ points = $$.math.joinLines(expandedLineSet);
+ } else {
+ points = transformedPoints;
+ }
+
+ // Check if a point is in box
+ for (var i = 0; i < transformedPoints.length / 2; i++) {
+ if (x1 <= transformedPoints[i * 2]
+ && transformedPoints[i * 2] <= x2) {
+
+ if (y1 <= transformedPoints[i * 2 + 1]
+ && transformedPoints[i * 2 + 1] <= y2) {
+
+ return true;
+ }
+ }
+ }
+
+
+ // Check for intersections with the selection box
+ for (var i = 0; i < points.length / 2; i++) {
+
+ var currentX = points[i * 2];
+ var currentY = points[i * 2 + 1];
+ var nextX;
+ var nextY;
+
+ if (i < points.length / 2 - 1) {
+ nextX = points[(i + 1) * 2];
+ nextY = points[(i + 1) * 2 + 1];
+ } else {
+ nextX = points[0];
+ nextY = points[1];
+ }
+
+ // Intersection with top of selection box
+ if ($$.math.finiteLinesIntersect(currentX, currentY, nextX, nextY, x1, y1, x2, y1, false).length > 0) {
+ return true;
+ }
+
+ // Intersection with bottom of selection box
+ if ($$.math.finiteLinesIntersect(currentX, currentY, nextX, nextY, x1, y2, x2, y2, false).length > 0) {
+ return true;
+ }
+
+ // Intersection with left side of selection box
+ if ($$.math.finiteLinesIntersect(currentX, currentY, nextX, nextY, x1, y1, x1, y2, false).length > 0) {
+ return true;
+ }
+
+ // Intersection with right side of selection box
+ if ($$.math.finiteLinesIntersect(currentX, currentY, nextX, nextY, x2, y1, x2, y2, false).length > 0) {
+ return true;
+ }
+ }
+
+ /*
+ // Check if box corner in the polygon
+ if ($$.math.pointInsidePolygon(
+ x1, y1, points, 0, 0, 1, 1, 0, direction)) {
+
+ return true;
+ } else if ($$.math.pointInsidePolygon(
+ x1, y2, points, 0, 0, 1, 1, 0, direction)) {
+
+ return true;
+ } else if ($$.math.pointInsidePolygon(
+ x2, y2, points, 0, 0, 1, 1, 0, direction)) {
+
+ return true;
+ } else if ($$.math.pointInsidePolygon(
+ x2, y1, points, 0, 0, 1, 1, 0, direction)) {
+
+ return true;
+ }
+ */
+ return false;
+ };
+
+ $$.math.polygonIntersectLine = function(
+ x, y, basePoints, centerX, centerY, width, height, padding) {
+
+ var intersections = [];
+ var intersection;
+
+ var transformedPoints = new Array(basePoints.length);
+
+ for (var i = 0; i < transformedPoints.length / 2; i++) {
+ transformedPoints[i * 2] = basePoints[i * 2] * width + centerX;
+ transformedPoints[i * 2 + 1] = basePoints[i * 2 + 1] * height + centerY;
+ }
+
+ var points;
+
+ if (padding > 0) {
+ var expandedLineSet = $$.math.expandPolygon(
+ transformedPoints,
+ -padding);
+
+ points = $$.math.joinLines(expandedLineSet);
+ } else {
+ points = transformedPoints;
+ }
+ // var points = transformedPoints;
+
+ var currentX, currentY, nextX, nextY;
+
+ for (var i = 0; i < points.length / 2; i++) {
+
+ currentX = points[i * 2];
+ currentY = points[i * 2 + 1];
+
+ if (i < points.length / 2 - 1) {
+ nextX = points[(i + 1) * 2];
+ nextY = points[(i + 1) * 2 + 1];
+ } else {
+ nextX = points[0];
+ nextY = points[1];
+ }
+
+ intersection = this.finiteLinesIntersect(
+ x, y, centerX, centerY,
+ currentX, currentY,
+ nextX, nextY);
+
+ if (intersection.length !== 0) {
+ intersections.push(intersection[0], intersection[1]);
+ }
+ }
+
+ return intersections;
+ };
+
+ $$.math.shortenIntersection = function(
+ intersection, offset, amount) {
+
+ var disp = [intersection[0] - offset[0], intersection[1] - offset[1]];
+
+ var length = Math.sqrt(disp[0] * disp[0] + disp[1] * disp[1]);
+
+ var lenRatio = (length - amount) / length;
+
+ if (lenRatio < 0) {
+ lenRatio = 0.00001;
+ }
+
+ return [offset[0] + lenRatio * disp[0], offset[1] + lenRatio * disp[1]];
+ };
+
+ $$.math.generateUnitNgonPointsFitToSquare = function(sides, rotationRadians) {
+ var points = $$.math.generateUnitNgonPoints(sides, rotationRadians);
+ points = $$.math.fitPolygonToSquare(points);
+
+ return points;
+ };
+
+ $$.math.fitPolygonToSquare = function(points){
+ var x, y;
+ var sides = points.length/2;
+ var minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
+
+ for (var i = 0; i < sides; i++) {
+ x = points[2 * i];
+ y = points[2 * i + 1];
+
+ minX = Math.min( minX, x );
+ maxX = Math.max( maxX, x );
+ minY = Math.min( minY, y );
+ maxY = Math.max( maxY, y );
+ }
+
+ // stretch factors
+ var sx = 2 / (maxX - minX);
+ var sy = 2 / (maxY - minY);
+
+ for (var i = 0; i < sides; i++){
+ x = points[2 * i] = points[2 * i] * sx;
+ y = points[2 * i + 1] = points[2 * i + 1] * sy;
+
+ minX = Math.min( minX, x );
+ maxX = Math.max( maxX, x );
+ minY = Math.min( minY, y );
+ maxY = Math.max( maxY, y );
+ }
+
+ if( minY < -1 ){
+ for (var i = 0; i < sides; i++){
+ y = points[2 * i + 1] = points[2 * i + 1] + (-1 -minY);
+ }
+ }
+
+ return points;
+ };
+
+ $$.math.generateUnitNgonPoints = function(sides, rotationRadians) {
+
+ var increment = 1.0 / sides * 2 * Math.PI;
+ var startAngle = sides % 2 === 0 ?
+ Math.PI / 2.0 + increment / 2.0 : Math.PI / 2.0;
+// console.log(nodeShapes['square']);
+ startAngle += rotationRadians;
+
+ var points = new Array(sides * 2);
+
+ var currentAngle, x, y;
+ for (var i = 0; i < sides; i++) {
+ currentAngle = i * increment + startAngle;
+
+ x = points[2 * i] = Math.cos(currentAngle);// * (1 + i/2);
+ y = points[2 * i + 1] = Math.sin(-currentAngle);// * (1 + i/2);
+ }
+
+ return points;
+ };
+
+ $$.math.getRoundRectangleRadius = function(width, height) {
+
+ // Set the default radius, unless half of width or height is smaller than default
+ return Math.min(width / 4, height / 4, 8);
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // registered extensions to cytoscape, indexed by name
+ var extensions = {};
+ $$.extensions = extensions;
+
+ // registered modules for extensions, indexed by name
+ var modules = {};
+ $$.modules = modules;
+
+ function setExtension(type, name, registrant){
+ var impl = {};
+ impl[name] = registrant;
+
+ switch( type ){
+ case 'core':
+ case 'collection':
+ $$.fn[type]( impl );
+ }
+
+ // fill in missing layout functions in the prototype
+ if( type === 'layout' ){
+ var layoutProto = registrant.prototype;
+ var optLayoutFns = ['stop'];
+
+ for( var i = 0; i < optLayoutFns.length; i++ ){
+ var fnName = optLayoutFns[i];
+
+ layoutProto[fnName] = layoutProto[fnName] || function(){ return this; };
+ }
+
+ // either .start() or .run() is defined, so autogen the other
+ if( layoutProto.start && !layoutProto.run ){
+ layoutProto.run = function(){ this.start(); return this; };
+ } else if( !layoutProto.start && layoutProto.run ){
+ layoutProto.start = function(){ this.run(); return this; };
+ }
+
+ layoutProto.on = $$.define.on({ layout: true });
+ layoutProto.one = $$.define.on({ layout: true, unbindSelfOnTrigger: true });
+ layoutProto.once = $$.define.on({ layout: true, unbindAllBindersOnTrigger: true });
+ layoutProto.off = $$.define.off({ layout: true });
+ layoutProto.trigger = $$.define.trigger({ layout: true });
+
+ // aliases for those folks who like old stuff:
+ layoutProto.bind = layoutProto.on;
+ layoutProto.unbind = layoutProto.off;
+ }
+
+ return $$.util.setMap({
+ map: extensions,
+ keys: [ type, name ],
+ value: registrant
+ });
+ }
+
+ function getExtension(type, name){
+ return $$.util.getMap({
+ map: extensions,
+ keys: [ type, name ]
+ });
+ }
+
+ function setModule(type, name, moduleType, moduleName, registrant){
+ return $$.util.setMap({
+ map: modules,
+ keys: [ type, name, moduleType, moduleName ],
+ value: registrant
+ });
+ }
+
+ function getModule(type, name, moduleType, moduleName){
+ return $$.util.getMap({
+ map: modules,
+ keys: [ type, name, moduleType, moduleName ]
+ });
+ }
+
+ $$.extension = function(){
+ // e.g. $$.extension('renderer', 'svg')
+ if( arguments.length == 2 ){
+ return getExtension.apply(this, arguments);
+ }
+
+ // e.g. $$.extension('renderer', 'svg', { ... })
+ else if( arguments.length == 3 ){
+ return setExtension.apply(this, arguments);
+ }
+
+ // e.g. $$.extension('renderer', 'svg', 'nodeShape', 'ellipse')
+ else if( arguments.length == 4 ){
+ return getModule.apply(this, arguments);
+ }
+
+ // e.g. $$.extension('renderer', 'svg', 'nodeShape', 'ellipse', { ... })
+ else if( arguments.length == 5 ){
+ return setModule.apply(this, arguments);
+ }
+
+ else {
+ $$.util.error('Invalid extension access syntax');
+ }
+
+ };
+
+})( cytoscape );
+
+;(function($, $$){ 'use strict';
+
+ if( !$ ){ return; } // no jquery => don't need this
+
+ var cyReg = function( $ele ){
+ var d = $ele[0]._cyreg = $ele[0]._cyreg || {};
+
+ return d;
+ };
+
+ // allow calls on a jQuery selector by proxying calls to $.cytoscape
+ // e.g. $("#foo").cytoscape(options) => $.cytoscape(options) on #foo
+ $.fn.cytoscape = function(opts){
+ var $this = $(this);
+
+ // get object
+ if( opts === 'get' ){
+ return cyReg( $this ).cy;
+ }
+
+ // bind to ready
+ else if( $$.is.fn(opts) ){
+
+ var ready = opts;
+ var cy = cyReg( $this ).cy;
+
+ if( cy && cy.isReady() ){ // already ready so just trigger now
+ cy.trigger('ready', [], ready);
+
+ } else { // not yet ready, so add to readies list
+ var data = cyReg( $this );
+ var readies = data.readies = data.readies || [];
+
+ readies.push( ready );
+ }
+
+ }
+
+ // proxy to create instance
+ else if( $$.is.plainObject(opts) ){
+ return $this.each(function(){
+ var options = $.extend({}, opts, {
+ container: $(this)[0]
+ });
+
+ cytoscape(options);
+ });
+ }
+ };
+
+ // allow access to the global cytoscape object under jquery for legacy reasons
+ $.cytoscape = cytoscape;
+
+ // use short alias (cy) if not already defined
+ if( $.fn.cy == null && $.cy == null ){
+ $.fn.cy = $.fn.cytoscape;
+ $.cy = $.cytoscape;
+ }
+
+})(typeof jQuery !== 'undefined' ? jQuery : null , cytoscape);
+
+;(function($$){ 'use strict';
+
+ // shamelessly taken from jQuery
+ // https://github.com/jquery/jquery/blob/master/src/event.js
+
+ $$.Event = function( src, props ) {
+ // Allow instantiation without the 'new' keyword
+ if ( !(this instanceof $$.Event) ) {
+ return new $$.Event( src, props );
+ }
+
+ // Event object
+ if ( src && src.type ) {
+ this.originalEvent = src;
+ this.type = src.type;
+
+ // Events bubbling up the document may have been marked as prevented
+ // by a handler lower down the tree; reflect the correct value.
+ this.isDefaultPrevented = ( src.defaultPrevented ||
+ src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
+
+ // Event type
+ } else {
+ this.type = src;
+ }
+
+ // Put explicitly provided properties onto the event object
+ if ( props ) {
+ // $$.util.extend( this, props );
+
+ // more efficient to manually copy fields we use
+ this.type = props.type !== undefined ? props.type : this.type;
+ this.cy = props.cy;
+ this.cyTarget = props.cyTarget;
+ this.cyPosition = props.cyPosition;
+ this.cyRenderedPosition = props.cyRenderedPosition;
+ this.namespace = props.namespace;
+ this.layout = props.layout;
+ this.data = props.data;
+ }
+
+ // Create a timestamp if incoming event doesn't have one
+ this.timeStamp = src && src.timeStamp || +new Date();
+ };
+
+ function returnFalse() {
+ return false;
+ }
+ function returnTrue() {
+ return true;
+ }
+
+ // jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+ // http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+ $$.Event.prototype = {
+ preventDefault: function() {
+ this.isDefaultPrevented = returnTrue;
+
+ var e = this.originalEvent;
+ if ( !e ) {
+ return;
+ }
+
+ // if preventDefault exists run it on the original event
+ if ( e.preventDefault ) {
+ e.preventDefault();
+ }
+ },
+ stopPropagation: function() {
+ this.isPropagationStopped = returnTrue;
+
+ var e = this.originalEvent;
+ if ( !e ) {
+ return;
+ }
+ // if stopPropagation exists run it on the original event
+ if ( e.stopPropagation ) {
+ e.stopPropagation();
+ }
+ },
+ stopImmediatePropagation: function() {
+ this.isImmediatePropagationStopped = returnTrue;
+ this.stopPropagation();
+ },
+ isDefaultPrevented: returnFalse,
+ isPropagationStopped: returnFalse,
+ isImmediatePropagationStopped: returnFalse
+ };
+
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // use this module to cherry pick functions into your prototype
+ // (useful for functions shared between the core and collections, for example)
+
+ // e.g.
+ // $$.fn.collection({
+ // foo: $$.define.foo({ /* params... */ })
+ // });
+
+ $$.define = {
+
+ // access data field
+ data: function( params ){
+ var defaults = {
+ field: 'data',
+ bindingEvent: 'data',
+ allowBinding: false,
+ allowSetting: false,
+ allowGetting: false,
+ settingEvent: 'data',
+ settingTriggersEvent: false,
+ triggerFnName: 'trigger',
+ immutableKeys: {}, // key => true if immutable
+ updateStyle: false,
+ onSet: function( self ){},
+ canSet: function( self ){ return true; }
+ };
+ params = $$.util.extend({}, defaults, params);
+
+ return function dataImpl( name, value ){
+ var p = params;
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var single = selfIsArrayLike ? self[0] : self;
+
+ // .data('foo', ...)
+ if( $$.is.string(name) ){ // set or get property
+
+ // .data('foo')
+ if( p.allowGetting && value === undefined ){ // get
+
+ var ret;
+ if( single ){
+ ret = single._private[ p.field ][ name ];
+ }
+ return ret;
+
+ // .data('foo', 'bar')
+ } else if( p.allowSetting && value !== undefined ) { // set
+ var valid = !p.immutableKeys[name];
+ if( valid ){
+ for( var i = 0, l = all.length; i < l; i++ ){
+ if( p.canSet( all[i] ) ){
+ all[i]._private[ p.field ][ name ] = value;
+ }
+ }
+
+ // update mappers if asked
+ if( p.updateStyle ){ self.updateStyle(); }
+
+ // call onSet callback
+ p.onSet( self );
+
+ if( p.settingTriggersEvent ){
+ self[ p.triggerFnName ]( p.settingEvent );
+ }
+ }
+ }
+
+ // .data({ 'foo': 'bar' })
+ } else if( p.allowSetting && $$.is.plainObject(name) ){ // extend
+ var obj = name;
+ var k, v;
+
+ for( k in obj ){
+ v = obj[ k ];
+
+ var valid = !p.immutableKeys[k];
+ if( valid ){
+ for( var i = 0, l = all.length; i < l; i++ ){
+ if( p.canSet( all[i] ) ){
+ all[i]._private[ p.field ][ k ] = v;
+ }
+ }
+ }
+ }
+
+ // update mappers if asked
+ if( p.updateStyle ){ self.updateStyle(); }
+
+ // call onSet callback
+ p.onSet( self );
+
+ if( p.settingTriggersEvent ){
+ self[ p.triggerFnName ]( p.settingEvent );
+ }
+
+ // .data(function(){ ... })
+ } else if( p.allowBinding && $$.is.fn(name) ){ // bind to event
+ var fn = name;
+ self.bind( p.bindingEvent, fn );
+
+ // .data()
+ } else if( p.allowGetting && name === undefined ){ // get whole object
+ var ret;
+ if( single ){
+ ret = single._private[ p.field ];
+ }
+ return ret;
+ }
+
+ return self; // maintain chainability
+ }; // function
+ }, // data
+
+ // remove data field
+ removeData: function( params ){
+ var defaults = {
+ field: 'data',
+ event: 'data',
+ triggerFnName: 'trigger',
+ triggerEvent: false,
+ immutableKeys: {} // key => true if immutable
+ };
+ params = $$.util.extend({}, defaults, params);
+
+ return function removeDataImpl( names ){
+ var p = params;
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+
+ // .removeData('foo bar')
+ if( $$.is.string(names) ){ // then get the list of keys, and delete them
+ var keys = names.split(/\s+/);
+ var l = keys.length;
+
+ for( var i = 0; i < l; i++ ){ // delete each non-empty key
+ var key = keys[i];
+ if( $$.is.emptyString(key) ){ continue; }
+
+ var valid = !p.immutableKeys[ key ]; // not valid if immutable
+ if( valid ){
+ for( var i_a = 0, l_a = all.length; i_a < l_a; i_a++ ){
+ all[ i_a ]._private[ p.field ][ key ] = undefined;
+ }
+ }
+ }
+
+ if( p.triggerEvent ){
+ self[ p.triggerFnName ]( p.event );
+ }
+
+ // .removeData()
+ } else if( names === undefined ){ // then delete all keys
+
+ for( var i_a = 0, l_a = all.length; i_a < l_a; i_a++ ){
+ var _privateFields = all[ i_a ]._private[ p.field ];
+
+ for( var key in _privateFields ){
+ var validKeyToDelete = !p.immutableKeys[ key ];
+
+ if( validKeyToDelete ){
+ _privateFields[ key ] = undefined;
+ }
+ }
+ }
+
+ if( p.triggerEvent ){
+ self[ p.triggerFnName ]( p.event );
+ }
+ }
+
+ return self; // maintain chaining
+ }; // function
+ }, // removeData
+
+ // event function reusable stuff
+ event: {
+ regex: /(\w+)(\.\w+)?/, // regex for matching event strings (e.g. "click.namespace")
+ optionalTypeRegex: /(\w+)?(\.\w+)?/,
+ falseCallback: function(){ return false; }
+ },
+
+ // event binding
+ on: function( params ){
+ var defaults = {
+ unbindSelfOnTrigger: false,
+ unbindAllBindersOnTrigger: false
+ };
+ params = $$.util.extend({}, defaults, params);
+
+ return function onImpl(events, selector, data, callback){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var eventsIsString = $$.is.string(events);
+ var p = params;
+
+ if( $$.is.plainObject(selector) ){ // selector is actually data
+ callback = data;
+ data = selector;
+ selector = undefined;
+ } else if( $$.is.fn(selector) || selector === false ){ // selector is actually callback
+ callback = selector;
+ data = undefined;
+ selector = undefined;
+ }
+
+ if( $$.is.fn(data) || data === false ){ // data is actually callback
+ callback = data;
+ data = undefined;
+ }
+
+ // if there isn't a callback, we can't really do anything
+ // (can't speak for mapped events arg version)
+ if( !($$.is.fn(callback) || callback === false) && eventsIsString ){
+ return self; // maintain chaining
+ }
+
+ if( eventsIsString ){ // then convert to map
+ var map = {};
+ map[ events ] = callback;
+ events = map;
+ }
+
+ for( var evts in events ){
+ callback = events[evts];
+ if( callback === false ){
+ callback = $$.define.event.falseCallback;
+ }
+
+ if( !$$.is.fn(callback) ){ continue; }
+
+ evts = evts.split(/\s+/);
+ for( var i = 0; i < evts.length; i++ ){
+ var evt = evts[i];
+ if( $$.is.emptyString(evt) ){ continue; }
+
+ var match = evt.match( $$.define.event.regex ); // type[.namespace]
+
+ if( match ){
+ var type = match[1];
+ var namespace = match[2] ? match[2] : undefined;
+
+ var listener = {
+ callback: callback, // callback to run
+ data: data, // extra data in eventObj.data
+ delegated: selector ? true : false, // whether the evt is delegated
+ selector: selector, // the selector to match for delegated events
+ selObj: new $$.Selector(selector), // cached selector object to save rebuilding
+ type: type, // the event type (e.g. 'click')
+ namespace: namespace, // the event namespace (e.g. ".foo")
+ unbindSelfOnTrigger: p.unbindSelfOnTrigger,
+ unbindAllBindersOnTrigger: p.unbindAllBindersOnTrigger,
+ binders: all // who bound together
+ };
+
+ for( var j = 0; j < all.length; j++ ){
+ all[j]._private.listeners.push( listener );
+ }
+ }
+ } // for events array
+ } // for events map
+
+ return self; // maintain chaining
+ }; // function
+ }, // on
+
+ off: function offImpl( params ){
+ var defaults = {
+ };
+ params = $$.util.extend({}, defaults, params);
+
+ return function(events, selector, callback){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var eventsIsString = $$.is.string(events);
+
+ if( arguments.length === 0 ){ // then unbind all
+
+ for( var i = 0; i < all.length; i++ ){
+ all[i]._private.listeners = [];
+ }
+
+ return self; // maintain chaining
+ }
+
+ if( $$.is.fn(selector) || selector === false ){ // selector is actually callback
+ callback = selector;
+ selector = undefined;
+ }
+
+ if( eventsIsString ){ // then convert to map
+ var map = {};
+ map[ events ] = callback;
+ events = map;
+ }
+
+ for( var evts in events ){
+ callback = events[evts];
+
+ if( callback === false ){
+ callback = $$.define.event.falseCallback;
+ }
+
+ evts = evts.split(/\s+/);
+ for( var h = 0; h < evts.length; h++ ){
+ var evt = evts[h];
+ if( $$.is.emptyString(evt) ){ continue; }
+
+ var match = evt.match( $$.define.event.optionalTypeRegex ); // [type][.namespace]
+ if( match ){
+ var type = match[1] ? match[1] : undefined;
+ var namespace = match[2] ? match[2] : undefined;
+
+ for( var i = 0; i < all.length; i++ ){ //
+ var listeners = all[i]._private.listeners;
+
+ for( var j = 0; j < listeners.length; j++ ){
+ var listener = listeners[j];
+ var nsMatches = !namespace || namespace === listener.namespace;
+ var typeMatches = !type || listener.type === type;
+ var cbMatches = !callback || callback === listener.callback;
+ var listenerMatches = nsMatches && typeMatches && cbMatches;
+
+ // delete listener if it matches
+ if( listenerMatches ){
+ listeners.splice(j, 1);
+ j--;
+ }
+ } // for listeners
+ } // for all
+ } // if match
+ } // for events array
+
+ } // for events map
+
+ return self; // maintain chaining
+ }; // function
+ }, // off
+
+ trigger: function( params ){
+ var defaults = {};
+ params = $$.util.extend({}, defaults, params);
+
+ return function triggerImpl(events, extraParams, fnToTrigger){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var eventsIsString = $$.is.string(events);
+ var eventsIsObject = $$.is.plainObject(events);
+ var eventsIsEvent = $$.is.event(events);
+ var cy = this._private.cy || this;
+ var hasCompounds = cy.hasCompoundNodes();
+
+ if( eventsIsString ){ // then make a plain event object for each event name
+ var evts = events.split(/\s+/);
+ events = [];
+
+ for( var i = 0; i < evts.length; i++ ){
+ var evt = evts[i];
+ if( $$.is.emptyString(evt) ){ continue; }
+
+ var match = evt.match( $$.define.event.regex ); // type[.namespace]
+ var type = match[1];
+ var namespace = match[2] ? match[2] : undefined;
+
+ events.push( {
+ type: type,
+ namespace: namespace
+ } );
+ }
+ } else if( eventsIsObject ){ // put in length 1 array
+ var eventArgObj = events;
+
+ events = [ eventArgObj ];
+ }
+
+ if( extraParams ){
+ if( !$$.is.array(extraParams) ){ // make sure extra params are in an array if specified
+ extraParams = [ extraParams ];
+ }
+ } else { // otherwise, we've got nothing
+ extraParams = [];
+ }
+
+ for( var i = 0; i < events.length; i++ ){ // trigger each event in order
+ var evtObj = events[i];
+
+ for( var j = 0; j < all.length; j++ ){ // for each
+ var triggerer = all[j];
+ var listeners = triggerer._private.listeners;
+ var triggererIsElement = $$.is.element(triggerer);
+ var bubbleUp = triggererIsElement || params.layout;
+
+ // create the event for this element from the event object
+ var evt;
+
+ if( eventsIsEvent ){ // then just get the object
+ evt = evtObj;
+
+ evt.cyTarget = evt.cyTarget || triggerer;
+ evt.cy = evt.cy || cy;
+
+ } else { // then we have to make one
+ evt = new $$.Event( evtObj, {
+ cyTarget: triggerer,
+ cy: cy,
+ namespace: evtObj.namespace
+ } );
+ }
+
+ // if a layout was specified, then put it in the typed event
+ if( evtObj.layout ){
+ evt.layout = evtObj.layout;
+ }
+
+ // if triggered by layout, put in event
+ if( params.layout ){
+ evt.layout = triggerer;
+ }
+
+ // create a rendered position based on the passed position
+ if( evt.cyPosition ){
+ var pos = evt.cyPosition;
+ var zoom = cy.zoom();
+ var pan = cy.pan();
+
+ evt.cyRenderedPosition = {
+ x: pos.x * zoom + pan.x,
+ y: pos.y * zoom + pan.y
+ };
+ }
+
+ if( fnToTrigger ){ // then override the listeners list with just the one we specified
+ listeners = [{
+ namespace: evt.namespace,
+ type: evt.type,
+ callback: fnToTrigger
+ }];
+ }
+
+ for( var k = 0; k < listeners.length; k++ ){ // check each listener
+ var lis = listeners[k];
+ var nsMatches = !lis.namespace || lis.namespace === evt.namespace;
+ var typeMatches = lis.type === evt.type;
+ var targetMatches = lis.delegated ? ( triggerer !== evt.cyTarget && $$.is.element(evt.cyTarget) && lis.selObj.matches(evt.cyTarget) ) : (true); // we're not going to validate the hierarchy; that's too expensive
+ var listenerMatches = nsMatches && typeMatches && targetMatches;
+
+ if( listenerMatches ){ // then trigger it
+ var args = [ evt ];
+ args = args.concat( extraParams ); // add extra params to args list
+
+ if( lis.data ){ // add on data plugged into binding
+ evt.data = lis.data;
+ } else { // or clear it in case the event obj is reused
+ evt.data = undefined;
+ }
+
+ if( lis.unbindSelfOnTrigger || lis.unbindAllBindersOnTrigger ){ // then remove listener
+ listeners.splice(k, 1);
+ k--;
+ }
+
+ if( lis.unbindAllBindersOnTrigger ){ // then delete the listener for all binders
+ var binders = lis.binders;
+ for( var l = 0; l < binders.length; l++ ){
+ var binder = binders[l];
+ if( !binder || binder === triggerer ){ continue; } // already handled triggerer or we can't handle it
+
+ var binderListeners = binder._private.listeners;
+ for( var m = 0; m < binderListeners.length; m++ ){
+ var binderListener = binderListeners[m];
+
+ if( binderListener === lis ){ // delete listener from list
+ binderListeners.splice(m, 1);
+ m--;
+ }
+ }
+ }
+ }
+
+ // run the callback
+ var context = lis.delegated ? evt.cyTarget : triggerer;
+ var ret = lis.callback.apply( context, args );
+
+ if( ret === false || evt.isPropagationStopped() ){
+ // then don't bubble
+ bubbleUp = false;
+
+ if( ret === false ){
+ // returning false is a shorthand for stopping propagation and preventing the def. action
+ evt.stopPropagation();
+ evt.preventDefault();
+ }
+ }
+ } // if listener matches
+ } // for each listener
+
+ // bubble up event for elements
+ if( bubbleUp ){
+ var parent = hasCompounds ? triggerer._private.parent : null;
+ var hasParent = parent != null && parent.length !== 0;
+
+ if( hasParent ){ // then bubble up to parent
+ parent = parent[0];
+ parent.trigger(evt);
+ } else { // otherwise, bubble up to the core
+ cy.trigger(evt);
+ }
+ }
+
+ } // for each of all
+ } // for each event
+
+ return self; // maintain chaining
+ }; // function
+ }, // trigger
+
+
+ animated: function( fnParams ){
+ var defaults = {};
+ fnParams = $$.util.extend({}, defaults, fnParams);
+
+ return function animatedImpl(){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var cy = this._private.cy || this;
+
+ if( !cy.styleEnabled() ){ return false; }
+
+ var ele = all[0];
+
+ if( ele ){
+ return ele._private.animation.current.length > 0;
+ }
+ };
+ }, // animated
+
+ clearQueue: function( fnParams ){
+ var defaults = {};
+ fnParams = $$.util.extend({}, defaults, fnParams);
+
+ return function clearQueueImpl(){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var cy = this._private.cy || this;
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ for( var i = 0; i < all.length; i++ ){
+ var ele = all[i];
+ ele._private.animation.queue = [];
+ }
+
+ return this;
+ };
+ }, // clearQueue
+
+ delay: function( fnParams ){
+ var defaults = {};
+ fnParams = $$.util.extend({}, defaults, fnParams);
+
+ return function delayImpl( time, complete ){
+ var cy = this._private.cy || this;
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ this.animate({
+ delay: time
+ }, {
+ duration: time,
+ complete: complete
+ });
+
+ return this;
+ };
+ }, // delay
+
+ animate: function( fnParams ){
+ var defaults = {};
+ fnParams = $$.util.extend({}, defaults, fnParams);
+
+ return function animateImpl( properties, params ){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var cy = this._private.cy || this;
+ var isCore = !selfIsArrayLike;
+ var isEles = !isCore;
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ var callTime = +new Date();
+ var style = cy.style();
+ var q;
+
+ if( params === undefined ){
+ params = {};
+ }
+
+ if( params.duration === undefined ){
+ params.duration = 400;
+ }
+
+ switch( params.duration ){
+ case 'slow':
+ params.duration = 600;
+ break;
+ case 'fast':
+ params.duration = 200;
+ break;
+ }
+
+ var propertiesEmpty = true;
+ if( properties ){ for( var i in properties ){
+ propertiesEmpty = false;
+ break;
+ } }
+
+ if( propertiesEmpty ){
+ return this; // nothing to animate
+ }
+
+ if( properties.css && isEles ){
+ properties.css = style.getValueStyle( properties.css, { array: true } );
+ }
+
+ if( properties.renderedPosition && isEles ){
+ var rpos = properties.renderedPosition;
+ var pan = cy.pan();
+ var zoom = cy.zoom();
+
+ properties.position = {
+ x: ( rpos.x - pan.x ) /zoom,
+ y: ( rpos.y - pan.y ) /zoom
+ };
+ }
+
+ // override pan w/ panBy if set
+ if( properties.panBy && isCore ){
+ var panBy = properties.panBy;
+ var cyPan = cy.pan();
+
+ properties.pan = {
+ x: cyPan.x + panBy.x,
+ y: cyPan.y + panBy.y
+ };
+ }
+
+ // override pan w/ center if set
+ var center = properties.center || properties.centre;
+ if( center && isCore ){
+ var centerPan = cy.getCenterPan( center.eles );
+
+ if( centerPan ){
+ properties.pan = centerPan;
+ }
+ }
+
+ // override pan & zoom w/ fit if set
+ if( properties.fit && isCore ){
+ var fit = properties.fit;
+ var fitVp = cy.getFitViewport( fit.eles || fit.boundingBox, fit.padding );
+
+ if( fitVp ){
+ properties.pan = fitVp.pan; //{ x: fitVp.pan.x, y: fitVp.pan.y };
+ properties.zoom = fitVp.zoom;
+ }
+ }
+
+ for( var i = 0; i < all.length; i++ ){
+ var ele = all[i];
+
+ if( ele.animated() && (params.queue === undefined || params.queue) ){
+ q = ele._private.animation.queue;
+ } else {
+ q = ele._private.animation.current;
+ }
+
+ q.push({
+ properties: properties,
+ duration: params.duration,
+ params: params,
+ callTime: callTime
+ });
+ }
+
+ if( isEles ){
+ cy.addToAnimationPool( this );
+ }
+
+ return this; // chaining
+ };
+ }, // animate
+
+ stop: function( fnParams ){
+ var defaults = {};
+ fnParams = $$.util.extend({}, defaults, fnParams);
+
+ return function stopImpl( clearQueue, jumpToEnd ){
+ var self = this;
+ var selfIsArrayLike = self.length !== undefined;
+ var all = selfIsArrayLike ? self : [self]; // put in array if not array-like
+ var cy = this._private.cy || this;
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ for( var i = 0; i < all.length; i++ ){
+ var ele = all[i];
+ var anis = ele._private.animation.current;
+
+ for( var j = 0; j < anis.length; j++ ){
+ var animation = anis[j];
+ if( jumpToEnd ){
+ // next iteration of the animation loop, the animation
+ // will go straight to the end and be removed
+ animation.duration = 0;
+ }
+ }
+
+ // clear the queue of future animations
+ if( clearQueue ){
+ ele._private.animation.queue = [];
+ }
+
+ if( !jumpToEnd ){
+ ele._private.animation.current = [];
+ }
+ }
+
+ // we have to notify (the animation loop doesn't do it for us on `stop`)
+ cy.notify({
+ collection: this,
+ type: 'draw'
+ });
+
+ return this;
+ };
+ } // stop
+
+ }; // define
+
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.selector = function(map, options){
+ for( var name in map ){
+ var fn = map[name];
+ $$.Selector.prototype[ name ] = fn;
+ }
+ };
+
+ $$.Selector = function(onlyThisGroup, selector){
+
+ if( !(this instanceof $$.Selector) ){
+ return new $$.Selector(onlyThisGroup, selector);
+ }
+
+ if( selector === undefined && onlyThisGroup !== undefined ){
+ selector = onlyThisGroup;
+ onlyThisGroup = undefined;
+ }
+
+ var self = this;
+
+ self._private = {
+ selectorText: null,
+ invalid: true
+ };
+
+ if( !selector || ( $$.is.string(selector) && selector.match(/^\s*$/) ) ){
+
+ if( onlyThisGroup == null ){
+ // ignore
+ self.length = 0;
+ } else {
+ self[0] = newQuery();
+ self[0].group = onlyThisGroup;
+ self.length = 1;
+ }
+
+ } else if( $$.is.element( selector ) ){
+ var collection = new $$.Collection(self.cy(), [ selector ]);
+
+ self[0] = newQuery();
+ self[0].collection = collection;
+ self.length = 1;
+
+ } else if( $$.is.collection( selector ) ){
+ self[0] = newQuery();
+ self[0].collection = selector;
+ self.length = 1;
+
+ } else if( $$.is.fn( selector ) ) {
+ self[0] = newQuery();
+ self[0].filter = selector;
+ self.length = 1;
+
+ } else if( $$.is.string( selector ) ){
+
+ // the current subject in the query
+ var currentSubject = null;
+
+ // storage for parsed queries
+ var newQuery = function(){
+ return {
+ classes: [],
+ colonSelectors: [],
+ data: [],
+ group: null,
+ ids: [],
+ meta: [],
+
+ // fake selectors
+ collection: null, // a collection to match against
+ filter: null, // filter function
+
+ // these are defined in the upward direction rather than down (e.g. child)
+ // because we need to go up in Selector.filter()
+ parent: null, // parent query obj
+ ancestor: null, // ancestor query obj
+ subject: null, // defines subject in compound query (subject query obj; points to self if subject)
+
+ // use these only when subject has been defined
+ child: null,
+ descendant: null
+ };
+ };
+
+ // tokens in the query language
+ var tokens = {
+ metaChar: '[\\!\\"\\#\\$\\%\\&\\\'\\(\\)\\*\\+\\,\\.\\/\\:\\;\\<\\=\\>\\?\\@\\[\\]\\^\\`\\{\\|\\}\\~]', // chars we need to escape in var names, etc
+ comparatorOp: '=|\\!=|>|>=|<|<=|\\$=|\\^=|\\*=', // binary comparison op (used in data selectors)
+ boolOp: '\\?|\\!|\\^', // boolean (unary) operators (used in data selectors)
+ string: '"(?:\\\\"|[^"])+"' + '|' + "'(?:\\\\'|[^'])+'", // string literals (used in data selectors) -- doublequotes | singlequotes
+ number: $$.util.regex.number, // number literal (used in data selectors) --- e.g. 0.1234, 1234, 12e123
+ meta: 'degree|indegree|outdegree', // allowed metadata fields (i.e. allowed functions to use from $$.Collection)
+ separator: '\\s*,\\s*', // queries are separated by commas, e.g. edge[foo = 'bar'], node.someClass
+ descendant: '\\s+',
+ child: '\\s+>\\s+',
+ subject: '\\$'
+ };
+ tokens.variable = '(?:[\\w-]|(?:\\\\'+ tokens.metaChar +'))+'; // a variable name
+ tokens.value = tokens.string + '|' + tokens.number; // a value literal, either a string or number
+ tokens.className = tokens.variable; // a class name (follows variable conventions)
+ tokens.id = tokens.variable; // an element id (follows variable conventions)
+
+ // when a token like a variable has escaped meta characters, we need to clean the backslashes out
+ // so that values get compared properly in Selector.filter()
+ var cleanMetaChars = function(str){
+ return str.replace(new RegExp('\\\\(' + tokens.metaChar + ')', 'g'), function(match, $1, offset, original){
+ return $1;
+ });
+ };
+
+ // add @ variants to comparatorOp
+ var ops = tokens.comparatorOp.split('|');
+ for( var i = 0; i < ops.length; i++ ){
+ var op = ops[i];
+ tokens.comparatorOp += '|@' + op;
+ }
+
+ // add ! variants to comparatorOp
+ var ops = tokens.comparatorOp.split('|');
+ for( var i = 0; i < ops.length; i++ ){
+ var op = ops[i];
+
+ if( op.indexOf('!') >= 0 ){ continue; } // skip ops that explicitly contain !
+ if( op === '=' ){ continue; } // skip = b/c != is explicitly defined
+
+ tokens.comparatorOp += '|\\!' + op;
+ }
+
+ // NOTE: add new expression syntax here to have it recognised by the parser;
+ // - a query contains all adjacent (i.e. no separator in between) expressions;
+ // - the current query is stored in self[i] --- you can use the reference to `this` in the populate function;
+ // - you need to check the query objects in Selector.filter() for it actually filter properly, but that's pretty straight forward
+ // - when you add something here, also add to Selector.toString()
+ var exprs = {
+ group: {
+ query: true,
+ regex: '(node|edge|\\*)',
+ populate: function( group ){
+ this.group = group == "*" ? group : group + 's';
+ }
+ },
+
+ state: {
+ query: true,
+ // NB: if one colon selector is a substring of another from its start, place the longer one first
+ // e.g. :foobar|:foo
+ regex: '(:selected|:unselected|:locked|:unlocked|:visible|:hidden|:transparent|:grabbed|:free|:removed|:inside|:grabbable|:ungrabbable|:animated|:unanimated|:selectable|:unselectable|:orphan|:nonorphan|:parent|:child|:loop|:simple|:active|:inactive|:touch)',
+ populate: function( state ){
+ this.colonSelectors.push( state );
+ }
+ },
+
+ id: {
+ query: true,
+ regex: '\\#('+ tokens.id +')',
+ populate: function( id ){
+ this.ids.push( cleanMetaChars(id) );
+ }
+ },
+
+ className: {
+ query: true,
+ regex: '\\.('+ tokens.className +')',
+ populate: function( className ){
+ this.classes.push( cleanMetaChars(className) );
+ }
+ },
+
+ dataExists: {
+ query: true,
+ regex: '\\[\\s*('+ tokens.variable +')\\s*\\]',
+ populate: function( variable ){
+ this.data.push({
+ field: cleanMetaChars(variable)
+ });
+ }
+ },
+
+ dataCompare: {
+ query: true,
+ regex: '\\[\\s*('+ tokens.variable +')\\s*('+ tokens.comparatorOp +')\\s*('+ tokens.value +')\\s*\\]',
+ populate: function( variable, comparatorOp, value ){
+ var valueIsString = new RegExp('^' + tokens.string + '$').exec(value) != null;
+
+ if( valueIsString ){
+ value = value.substring(1, value.length - 1);
+ } else {
+ value = parseFloat(value);
+ }
+
+ this.data.push({
+ field: cleanMetaChars(variable),
+ operator: comparatorOp,
+ value: value
+ });
+ }
+ },
+
+ dataBool: {
+ query: true,
+ regex: '\\[\\s*('+ tokens.boolOp +')\\s*('+ tokens.variable +')\\s*\\]',
+ populate: function( boolOp, variable ){
+ this.data.push({
+ field: cleanMetaChars(variable),
+ operator: boolOp
+ });
+ }
+ },
+
+ metaCompare: {
+ query: true,
+ regex: '\\[\\[\\s*('+ tokens.meta +')\\s*('+ tokens.comparatorOp +')\\s*('+ tokens.number +')\\s*\\]\\]',
+ populate: function( meta, comparatorOp, number ){
+ this.meta.push({
+ field: cleanMetaChars(meta),
+ operator: comparatorOp,
+ value: parseFloat(number)
+ });
+ }
+ },
+
+ nextQuery: {
+ separator: true,
+ regex: tokens.separator,
+ populate: function(){
+ // go on to next query
+ self[++i] = newQuery();
+ currentSubject = null;
+ }
+ },
+
+ child: {
+ separator: true,
+ regex: tokens.child,
+ populate: function(){
+ // this query is the parent of the following query
+ var childQuery = newQuery();
+ childQuery.parent = this;
+ childQuery.subject = currentSubject;
+
+ // we're now populating the child query with expressions that follow
+ self[i] = childQuery;
+ }
+ },
+
+ descendant: {
+ separator: true,
+ regex: tokens.descendant,
+ populate: function(){
+ // this query is the ancestor of the following query
+ var descendantQuery = newQuery();
+ descendantQuery.ancestor = this;
+ descendantQuery.subject = currentSubject;
+
+ // we're now populating the descendant query with expressions that follow
+ self[i] = descendantQuery;
+ }
+ },
+
+ subject: {
+ modifier: true,
+ regex: tokens.subject,
+ populate: function(){
+ if( currentSubject != null && this.subject != this ){
+ $$.util.error('Redefinition of subject in selector `' + selector + '`');
+ return false;
+ }
+
+ currentSubject = this;
+ this.subject = this;
+ }
+
+ }
+ };
+
+ var j = 0;
+ for( var name in exprs ){
+ exprs[j] = exprs[name];
+ exprs[j].name = name;
+
+ j++;
+ }
+ exprs.length = j;
+
+ self._private.selectorText = selector;
+ var remaining = selector;
+ var i = 0;
+
+ // of all the expressions, find the first match in the remaining text
+ var consumeExpr = function( expectation ){
+ var expr;
+ var match;
+ var name;
+
+ for( var j = 0; j < exprs.length; j++ ){
+ var e = exprs[j];
+ var n = e.name;
+
+ // ignore this expression if it doesn't meet the expectation function
+ if( $$.is.fn( expectation ) && !expectation(n, e) ){ continue; }
+
+ var m = remaining.match(new RegExp( '^' + e.regex ));
+
+ if( m != null ){
+ match = m;
+ expr = e;
+ name = n;
+
+ var consumed = m[0];
+ remaining = remaining.substring( consumed.length );
+
+ break; // we've consumed one expr, so we can return now
+ }
+ }
+
+ return {
+ expr: expr,
+ match: match,
+ name: name
+ };
+ };
+
+ // consume all leading whitespace
+ var consumeWhitespace = function(){
+ var match = remaining.match(/^\s+/);
+
+ if( match ){
+ var consumed = match[0];
+ remaining = remaining.substring( consumed.length );
+ }
+ };
+
+ self[0] = newQuery(); // get started
+
+ consumeWhitespace(); // get rid of leading whitespace
+ for(;;){
+ var check = consumeExpr();
+
+ if( check.expr == null ){
+ $$.util.error('The selector `'+ selector +'`is invalid');
+ return;
+ } else {
+ var args = [];
+ for(var j = 1; j < check.match.length; j++){
+ args.push( check.match[j] );
+ }
+
+ // let the token populate the selector object (i.e. in self[i])
+ var ret = check.expr.populate.apply( self[i], args );
+
+ if( ret === false ){ return; } // exit if population failed
+ }
+
+ // we're done when there's nothing left to parse
+ if( remaining.match(/^\s*$/) ){
+ break;
+ }
+ }
+
+ self.length = i + 1;
+
+ // adjust references for subject
+ for(j = 0; j < self.length; j++){
+ var query = self[j];
+
+ if( query.subject != null ){
+ // go up the tree until we reach the subject
+ for(;;){
+ if( query.subject == query ){ break; } // done if subject is self
+
+ if( query.parent != null ){ // swap parent/child reference
+ var parent = query.parent;
+ var child = query;
+
+ child.parent = null;
+ parent.child = child;
+
+ query = parent; // go up the tree
+ } else if( query.ancestor != null ){ // swap ancestor/descendant
+ var ancestor = query.ancestor;
+ var descendant = query;
+
+ descendant.ancestor = null;
+ ancestor.descendant = descendant;
+
+ query = ancestor; // go up the tree
+ } else {
+ $$.util.error('When adjusting references for the selector `'+ query +'`, neither parent nor ancestor was found');
+ break;
+ }
+ } // for
+
+ self[j] = query.subject; // subject should be the root query
+ } // if
+ } // for
+
+ // make sure for each query that the subject group matches the implicit group if any
+ if( onlyThisGroup != null ){
+ for(var j = 0; j < self.length; j++){
+ if( self[j].group != null && self[j].group != onlyThisGroup ){
+ $$.util.error('Group `'+ self[j].group +'` conflicts with implicit group `'+ onlyThisGroup +'` in selector `'+ selector +'`');
+ return;
+ }
+
+ self[j].group = onlyThisGroup; // set to implicit group
+ }
+ }
+
+ } else {
+ $$.util.error('A selector must be created from a string; found ' + selector);
+ return;
+ }
+
+ self._private.invalid = false;
+
+ };
+
+ $$.selfn = $$.Selector.prototype;
+
+ $$.selfn.size = function(){
+ return this.length;
+ };
+
+ $$.selfn.eq = function(i){
+ return this[i];
+ };
+
+ // get elements from the core and then filter them
+ $$.selfn.find = function(){
+ // TODO impl if we decide to use a DB for storing elements
+ };
+
+ var queryMatches = function(query, element){
+ // check group
+ if( query.group != null && query.group != '*' && query.group != element._private.group ){
+ return false;
+ }
+
+ var cy = element.cy();
+
+ // check colon selectors
+ var allColonSelectorsMatch = true;
+ for(var k = 0; k < query.colonSelectors.length; k++){
+ var sel = query.colonSelectors[k];
+
+ switch(sel){
+ case ':selected':
+ allColonSelectorsMatch = element.selected();
+ break;
+ case ':unselected':
+ allColonSelectorsMatch = !element.selected();
+ break;
+ case ':selectable':
+ allColonSelectorsMatch = element.selectable();
+ break;
+ case ':unselectable':
+ allColonSelectorsMatch = !element.selectable();
+ break;
+ case ':locked':
+ allColonSelectorsMatch = element.locked();
+ break;
+ case ':unlocked':
+ allColonSelectorsMatch = !element.locked();
+ break;
+ case ':visible':
+ allColonSelectorsMatch = element.visible();
+ break;
+ case ':hidden':
+ allColonSelectorsMatch = !element.visible();
+ break;
+ case ':transparent':
+ allColonSelectorsMatch = element.transparent();
+ break;
+ case ':grabbed':
+ allColonSelectorsMatch = element.grabbed();
+ break;
+ case ':free':
+ allColonSelectorsMatch = !element.grabbed();
+ break;
+ case ':removed':
+ allColonSelectorsMatch = element.removed();
+ break;
+ case ':inside':
+ allColonSelectorsMatch = !element.removed();
+ break;
+ case ':grabbable':
+ allColonSelectorsMatch = element.grabbable();
+ break;
+ case ':ungrabbable':
+ allColonSelectorsMatch = !element.grabbable();
+ break;
+ case ':animated':
+ allColonSelectorsMatch = element.animated();
+ break;
+ case ':unanimated':
+ allColonSelectorsMatch = !element.animated();
+ break;
+ case ':parent':
+ allColonSelectorsMatch = element.isNode() && element.children().nonempty();
+ break;
+ case ':child':
+ case ':nonorphan':
+ allColonSelectorsMatch = element.isNode() && element.parent().nonempty();
+ break;
+ case ':orphan':
+ allColonSelectorsMatch = element.isNode() && element.parent().empty();
+ break;
+ case ':loop':
+ allColonSelectorsMatch = element.isEdge() && element.data('source') === element.data('target');
+ break;
+ case ':simple':
+ allColonSelectorsMatch = element.isEdge() && element.data('source') !== element.data('target');
+ break;
+ case ':active':
+ allColonSelectorsMatch = element.active();
+ break;
+ case ':inactive':
+ allColonSelectorsMatch = !element.active();
+ break;
+ case ':touch':
+ allColonSelectorsMatch = $$.is.touch();
+ break;
+ }
+
+ if( !allColonSelectorsMatch ) break;
+ }
+ if( !allColonSelectorsMatch ) return false;
+
+ // check id
+ var allIdsMatch = true;
+ for(var k = 0; k < query.ids.length; k++){
+ var id = query.ids[k];
+ var actualId = element._private.data.id;
+
+ allIdsMatch = allIdsMatch && (id == actualId);
+
+ if( !allIdsMatch ) break;
+ }
+ if( !allIdsMatch ) return false;
+
+ // check classes
+ var allClassesMatch = true;
+ for(var k = 0; k < query.classes.length; k++){
+ var cls = query.classes[k];
+
+ allClassesMatch = allClassesMatch && element.hasClass(cls);
+
+ if( !allClassesMatch ) break;
+ }
+ if( !allClassesMatch ) return false;
+
+ // generic checking for data/metadata
+ var operandsMatch = function(params){
+ var allDataMatches = true;
+ for(var k = 0; k < query[params.name].length; k++){
+ var data = query[params.name][k];
+ var operator = data.operator;
+ var value = data.value;
+ var field = data.field;
+ var matches;
+
+ if( operator != null && value != null ){
+
+ var fieldVal = params.fieldValue(field);
+ var fieldStr = !$$.is.string(fieldVal) && !$$.is.number(fieldVal) ? '' : '' + fieldVal;
+ var valStr = '' + value;
+
+ var caseInsensitive = false;
+ if( operator.indexOf('@') >= 0 ){
+ fieldStr = fieldStr.toLowerCase();
+ valStr = valStr.toLowerCase();
+
+ operator = operator.replace('@', '');
+ caseInsensitive = true;
+ }
+
+ var notExpr = false;
+ var handledNotExpr = false;
+ if( operator.indexOf('!') >= 0 ){
+ operator = operator.replace('!', '');
+ notExpr = true;
+ }
+
+ // if we're doing a case insensitive comparison, then we're using a STRING comparison
+ // even if we're comparing numbers
+ if( caseInsensitive ){
+ value = valStr.toLowerCase();
+ fieldVal = fieldStr.toLowerCase();
+ }
+
+ switch(operator){
+ case '*=':
+ matches = fieldStr.search(valStr) >= 0;
+ break;
+ case '$=':
+ matches = new RegExp(valStr + '$').exec(fieldStr) != null;
+ break;
+ case '^=':
+ matches = new RegExp('^' + valStr).exec(fieldStr) != null;
+ break;
+ case '=':
+ matches = fieldVal === value;
+ break;
+ case '!=':
+ matches = fieldVal !== value;
+ break;
+ case '>':
+ matches = !notExpr ? fieldVal > value : fieldVal <= value;
+ handledNotExpr = true;
+ break;
+ case '>=':
+ matches = !notExpr ? fieldVal >= value : fieldVal < value;
+ handledNotExpr = true;
+ break;
+ case '<':
+ matches = !notExpr ? fieldVal < value : fieldVal >= value;
+ handledNotExpr = true;
+ break;
+ case '<=':
+ matches = !notExpr ? fieldVal <= value : fieldVal > value;
+ handledNotExpr = true;
+ break;
+ default:
+ matches = false;
+ break;
+
+ }
+ } else if( operator != null ){
+ switch(operator){
+ case '?':
+ matches = params.fieldTruthy(field);
+ break;
+ case '!':
+ matches = !params.fieldTruthy(field);
+ break;
+ case '^':
+ matches = params.fieldUndefined(field);
+ break;
+ }
+ } else {
+ matches = !params.fieldUndefined(field);
+ }
+
+ if( notExpr && !handledNotExpr ){
+ matches = !matches;
+ handledNotExpr = true;
+ }
+
+ if( !matches ){
+ allDataMatches = false;
+ break;
+ }
+ } // for
+
+ return allDataMatches;
+ }; // operandsMatch
+
+ // check data matches
+ var allDataMatches = operandsMatch({
+ name: 'data',
+ fieldValue: function(field){
+ return element._private.data[field];
+ },
+ fieldRef: function(field){
+ return 'element._private.data.' + field;
+ },
+ fieldUndefined: function(field){
+ return element._private.data[field] === undefined;
+ },
+ fieldTruthy: function(field){
+ if( element._private.data[field] ){
+ return true;
+ }
+ return false;
+ }
+ });
+
+ if( !allDataMatches ){
+ return false;
+ }
+
+ // check metadata matches
+ var allMetaMatches = operandsMatch({
+ name: 'meta',
+ fieldValue: function(field){
+ return element[field]();
+ },
+ fieldRef: function(field){
+ return 'element.' + field + '()';
+ },
+ fieldUndefined: function(field){
+ return element[field]() == null;
+ },
+ fieldTruthy: function(field){
+ if( element[field]() ){
+ return true;
+ }
+ return false;
+ }
+ });
+
+ if( !allMetaMatches ){
+ return false;
+ }
+
+ // check collection
+ if( query.collection != null ){
+ var matchesAny = query.collection._private.ids[ element.id() ] != null;
+
+ if( !matchesAny ){
+ return false;
+ }
+ }
+
+ // check filter function
+ if( query.filter != null && element.collection().filter( query.filter ).size() === 0 ){
+ return false;
+ }
+
+
+ // check parent/child relations
+ var confirmRelations = function( query, elements ){
+ if( query != null ){
+ var matches = false;
+
+ if( !cy.hasCompoundNodes() ){
+ return false;
+ }
+
+ elements = elements(); // make elements functional so we save cycles if query == null
+
+ // query must match for at least one element (may be recursive)
+ for(var i = 0; i < elements.length; i++){
+ if( queryMatches( query, elements[i] ) ){
+ matches = true;
+ break;
+ }
+ }
+
+ return matches;
+ } else {
+ return true;
+ }
+ };
+
+ if (! confirmRelations(query.parent, function(){
+ return element.parent();
+ }) ){ return false; }
+
+ if (! confirmRelations(query.ancestor, function(){
+ return element.parents();
+ }) ){ return false; }
+
+ if (! confirmRelations(query.child, function(){
+ return element.children();
+ }) ){ return false; }
+
+ if (! confirmRelations(query.descendant, function(){
+ return element.descendants();
+ }) ){ return false; }
+
+ // we've reached the end, so we've matched everything for this query
+ return true;
+ }; // queryMatches
+
+ // filter an existing collection
+ $$.selfn.filter = function(collection){
+ var self = this;
+ var cy = collection.cy();
+
+ // don't bother trying if it's invalid
+ if( self._private.invalid ){
+ return new $$.Collection( cy );
+ }
+
+ var selectorFunction = function(i, element){
+ for(var j = 0; j < self.length; j++){
+ var query = self[j];
+
+ if( queryMatches(query, element) ){
+ return true;
+ }
+ }
+
+ return false;
+ };
+
+ if( self._private.selectorText == null ){
+ selectorFunction = function(){ return true; };
+ }
+
+ var filteredCollection = collection.filter( selectorFunction );
+
+ return filteredCollection;
+ }; // filter
+
+ // does selector match a single element?
+ $$.selfn.matches = function(ele){
+ var self = this;
+
+ // don't bother trying if it's invalid
+ if( self._private.invalid ){
+ return false;
+ }
+
+ for(var j = 0; j < self.length; j++){
+ var query = self[j];
+
+ if( queryMatches(query, ele) ){
+ return true;
+ }
+ }
+
+ return false;
+ }; // filter
+
+ // ith query to string
+ $$.selfn.toString = $$.selfn.selector = function(){
+
+ var str = '';
+
+ var clean = function(obj){
+ if( $$.is.string(obj) ){
+ return obj;
+ }
+ return '';
+ };
+
+ var queryToString = function(query){
+ var str = '';
+
+ var group = clean(query.group);
+ str += group.substring(0, group.length - 1);
+
+ for(var j = 0; j < query.data.length; j++){
+ var data = query.data[j];
+
+ if( data.value ){
+ str += '[' + data.field + clean(data.operator) + clean(data.value) + ']';
+ } else {
+ str += '[' + clean(data.operator) + data.field + ']';
+ }
+ }
+
+ for(var j = 0; j < query.meta.length; j++){
+ var meta = query.meta[j];
+ str += '[[' + meta.field + clean(meta.operator) + clean(meta.value) + ']]';
+ }
+
+ for(var j = 0; j < query.colonSelectors.length; j++){
+ var sel = query.colonSelectors[i];
+ str += sel;
+ }
+
+ for(var j = 0; j < query.ids.length; j++){
+ var sel = '#' + query.ids[i];
+ str += sel;
+ }
+
+ for(var j = 0; j < query.classes.length; j++){
+ var sel = '.' + query.classes[i];
+ str += sel;
+ }
+
+ if( query.parent != null ){
+ str = queryToString( query.parent ) + ' > ' + str;
+ }
+
+ if( query.ancestor != null ){
+ str = queryToString( query.ancestor ) + ' ' + str;
+ }
+
+ if( query.child != null ){
+ str += ' > ' + queryToString( query.child );
+ }
+
+ if( query.descendant != null ){
+ str += ' ' + queryToString( query.descendant );
+ }
+
+ return str;
+ };
+
+ for(var i = 0; i < this.length; i++){
+ var query = this[i];
+
+ str += queryToString( query );
+
+ if( this.length > 1 && i < this.length - 1 ){
+ str += ', ';
+ }
+ }
+
+ return str;
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.Style = function( cy ){
+
+ if( !(this instanceof $$.Style) ){
+ return new $$.Style(cy);
+ }
+
+ if( !$$.is.core(cy) ){
+ $$.util.error('A style must have a core reference');
+ return;
+ }
+
+ this._private = {
+ cy: cy,
+ coreStyle: {},
+ newStyle: true
+ };
+
+ this.length = 0;
+
+ this.addDefaultStylesheet();
+ };
+
+ // nice-to-have aliases
+ $$.style = $$.Style;
+ $$.styfn = $$.Style.prototype;
+
+ // define functions in the Style prototype
+ $$.fn.style = function( fnMap, options ){
+ for( var fnName in fnMap ){
+ var fn = fnMap[ fnName ];
+ $$.Style.prototype = fn;
+ }
+ };
+
+ (function(){
+ var number = $$.util.regex.number;
+ var rgba = $$.util.regex.rgbaNoBackRefs;
+ var hsla = $$.util.regex.hslaNoBackRefs;
+ var hex3 = $$.util.regex.hex3;
+ var hex6 = $$.util.regex.hex6;
+ var data = function( prefix ){ return '^' + prefix + '\\s*\\(\\s*([\\w\\.]+)\\s*\\)$'; };
+ var mapData = function( prefix ){ return '^' + prefix + '\\s*\\(([\\w\\.]+)\\s*\\,\\s*(' + number + ')\\s*\\,\\s*(' + number + ')\\s*,\\s*(' + number + '|\\w+|' + rgba + '|' + hsla + '|' + hex3 + '|' + hex6 + ')\\s*\\,\\s*(' + number + '|\\w+|' + rgba + '|' + hsla + '|' + hex3 + '|' + hex6 + ')\\)$'; };
+
+ // each visual style property has a type and needs to be validated according to it
+ $$.style.types = {
+ time: { number: true, min: 0, units: 's|ms', implicitUnits: 'ms' },
+ percent: { number: true, min: 0, max: 100, units: '%' },
+ zeroOneNumber: { number: true, min: 0, max: 1, unitless: true },
+ nOneOneNumber: { number: true, min: -1, max: 1, unitless: true },
+ nonNegativeInt: { number: true, min: 0, integer: true, unitless: true },
+ position: { enums: ['parent', 'origin'] },
+ autoSize: { number: true, min: 0, enums: ['auto'] },
+ number: { number: true },
+ size: { number: true, min: 0 },
+ bgSize: { number: true, min: 0, allowPercent: true },
+ bgPos: { number: true, allowPercent: true },
+ bgRepeat: { enums: ['repeat', 'repeat-x', 'repeat-y', 'no-repeat'] },
+ bgFit: { enums: ['none', 'contain', 'cover'] },
+ bgClip: { enums: ['none', 'node'] },
+ color: { color: true },
+ lineStyle: { enums: ['solid', 'dotted', 'dashed'] },
+ borderStyle: { enums: ['solid', 'dotted', 'dashed', 'double'] },
+ curveStyle: { enums: ['bezier', 'unbundled-bezier', 'haystack'] },
+ fontFamily: { regex: '^([\\w- ]+(?:\\s*,\\s*[\\w- ]+)*)$' },
+ fontVariant: { enums: ['small-caps', 'normal'] },
+ fontStyle: { enums: ['italic', 'normal', 'oblique'] },
+ fontWeight: { enums: ['normal', 'bold', 'bolder', 'lighter', '100', '200', '300', '400', '500', '600', '800', '900', 100, 200, 300, 400, 500, 600, 700, 800, 900] },
+ textDecoration: { enums: ['none', 'underline', 'overline', 'line-through'] },
+ textTransform: { enums: ['none', 'uppercase', 'lowercase'] },
+ nodeShape: { enums: ['rectangle', 'roundrectangle', 'ellipse', 'triangle', 'square', 'pentagon', 'hexagon', 'heptagon', 'octagon', 'star'] },
+ arrowShape: { enums: ['tee', 'triangle', 'triangle-tee', 'triangle-backcurve', 'half-triangle-overshot', 'square', 'circle', 'diamond', 'none'] },
+ arrowFill: { enums: ['filled', 'hollow'] },
+ display: { enums: ['element', 'none'] },
+ visibility: { enums: ['hidden', 'visible'] },
+ valign: { enums: ['top', 'center', 'bottom'] },
+ halign: { enums: ['left', 'center', 'right'] },
+ text: { string: true },
+ data: { mapping: true, regex: data('data') },
+ layoutData: { mapping: true, regex: data('layoutData') },
+ mapData: { mapping: true, regex: mapData('mapData') },
+ mapLayoutData: { mapping: true, regex: mapData('mapLayoutData') },
+ url: { regex: '^url\\s*\\(\\s*([^\\s]+)\\s*\\s*\\)|none|(.+)$' },
+ propList: { propList: true },
+ angle: { number: true, units: 'deg|rad' }
+ };
+
+ // define visual style properties
+ var t = $$.style.types;
+ var props = $$.style.properties = [
+ // labels
+ { name: 'text-valign', type: t.valign },
+ { name: 'text-halign', type: t.halign },
+ { name: 'color', type: t.color },
+ { name: 'content', type: t.text },
+ { name: 'text-outline-color', type: t.color },
+ { name: 'text-outline-width', type: t.size },
+ { name: 'text-outline-opacity', type: t.zeroOneNumber },
+ { name: 'text-opacity', type: t.zeroOneNumber },
+ // { name: 'text-decoration', type: t.textDecoration }, // not supported in canvas
+ { name: 'text-transform', type: t.textTransform },
+ // { name: 'text-rotation', type: t.angle }, // TODO disabled b/c rotation breaks bounding boxes
+ { name: 'font-family', type: t.fontFamily },
+ { name: 'font-style', type: t.fontStyle },
+ // { name: 'font-variant', type: t.fontVariant }, // not useful
+ { name: 'font-weight', type: t.fontWeight },
+ { name: 'font-size', type: t.size },
+ { name: 'min-zoomed-font-size', type: t.size },
+
+ // visibility
+ { name: 'display', type: t.display },
+ { name: 'visibility', type: t.visibility },
+ { name: 'opacity', type: t.zeroOneNumber },
+ { name: 'z-index', type: t.nonNegativeInt },
+
+ // overlays
+ { name: 'overlay-padding', type: t.size },
+ { name: 'overlay-color', type: t.color },
+ { name: 'overlay-opacity', type: t.zeroOneNumber },
+
+ // transition anis
+ { name: 'transition-property', type: t.propList },
+ { name: 'transition-duration', type: t.time },
+ { name: 'transition-delay', type: t.time },
+
+ // node body
+ { name: 'height', type: t.autoSize },
+ { name: 'width', type: t.autoSize },
+ { name: 'shape', type: t.nodeShape },
+ { name: 'background-color', type: t.color },
+ { name: 'background-opacity', type: t.zeroOneNumber },
+ { name: 'background-blacken', type: t.nOneOneNumber },
+
+ // node border
+ { name: 'border-color', type: t.color },
+ { name: 'border-opacity', type: t.zeroOneNumber },
+ { name: 'border-width', type: t.size },
+ { name: 'border-style', type: t.borderStyle },
+
+ // node background images
+ { name: 'background-image', type: t.url },
+ { name: 'background-image-opacity', type: t.zeroOneNumber },
+ { name: 'background-position-x', type: t.bgPos },
+ { name: 'background-position-y', type: t.bgPos },
+ { name: 'background-repeat', type: t.bgRepeat },
+ { name: 'background-fit', type: t.bgFit },
+ { name: 'background-clip', type: t.bgClip },
+
+ // compound props
+ { name: 'padding-left', type: t.size },
+ { name: 'padding-right', type: t.size },
+ { name: 'padding-top', type: t.size },
+ { name: 'padding-bottom', type: t.size },
+ { name: 'position', type: t.position },
+
+ // edge line
+ { name: 'line-style', type: t.lineStyle },
+ { name: 'line-color', type: t.color },
+ { name: 'control-point-step-size', type: t.size },
+ { name: 'control-point-distance', type: t.number },
+ { name: 'control-point-weight', type: t.zeroOneNumber },
+ { name: 'curve-style', type: t.curveStyle },
+ { name: 'haystack-radius', type: t.zeroOneNumber },
+
+ // edge arrows
+ { name: 'source-arrow-shape', type: t.arrowShape },
+ { name: 'target-arrow-shape', type: t.arrowShape },
+ { name: 'mid-source-arrow-shape', type: t.arrowShape },
+ { name: 'mid-target-arrow-shape', type: t.arrowShape },
+ { name: 'source-arrow-color', type: t.color },
+ { name: 'target-arrow-color', type: t.color },
+ { name: 'mid-source-arrow-color', type: t.color },
+ { name: 'mid-target-arrow-color', type: t.color },
+ { name: 'source-arrow-fill', type: t.arrowFill },
+ { name: 'target-arrow-fill', type: t.arrowFill },
+ { name: 'mid-source-arrow-fill', type: t.arrowFill },
+ { name: 'mid-target-arrow-fill', type: t.arrowFill },
+
+ // these are just for the core
+ { name: 'selection-box-color', type: t.color },
+ { name: 'selection-box-opacity', type: t.zeroOneNumber },
+ { name: 'selection-box-border-color', type: t.color },
+ { name: 'selection-box-border-width', type: t.size },
+ { name: 'active-bg-color', type: t.color },
+ { name: 'active-bg-opacity', type: t.zeroOneNumber },
+ { name: 'active-bg-size', type: t.size },
+ { name: 'outside-texture-bg-color', type: t.color },
+ { name: 'outside-texture-bg-opacity', type: t.zeroOneNumber }
+ ];
+
+ // pie backgrounds for nodes
+ $$.style.pieBackgroundN = 16; // because the pie properties are numbered, give access to a constant N (for renderer use)
+ props.push({ name: 'pie-size', type: t.bgSize });
+ for( var i = 1; i <= $$.style.pieBackgroundN; i++ ){
+ props.push({ name: 'pie-'+i+'-background-color', type: t.color });
+ props.push({ name: 'pie-'+i+'-background-size', type: t.percent });
+ props.push({ name: 'pie-'+i+'-background-opacity', type: t.zeroOneNumber });
+ }
+
+ // allow access of properties by name ( e.g. $$.style.properties.height )
+ for( var i = 0; i < props.length; i++ ){
+ var prop = props[i];
+
+ props[ prop.name ] = prop; // allow lookup by name
+ }
+ })();
+
+ // adds the default stylesheet to the current style
+ $$.styfn.addDefaultStylesheet = function(){
+ // to be nice, we build font related style properties from the core container
+ // so that cytoscape matches the style of its container by default
+ //
+ // unfortunately, this doesn't seem work consistently and can grab the default stylesheet values
+ // instead of the developer's values so let's just make it explicit for the dev for now
+ //
+ // delaying the read of these val's is not an opt'n: that would delay init'l load time
+ var fontFamily = 'Helvetica' || this.containerPropertyAsString('font-family') || 'sans-serif';
+ var fontStyle = 'normal' || this.containerPropertyAsString('font-style') || 'normal';
+ // var fontVariant = 'normal' || this.containerPropertyAsString('font-variant') || 'normal';
+ var fontWeight = 'normal' || this.containerPropertyAsString('font-weight') || 'normal';
+ var color = '#000' || this.containerPropertyAsString('color') || '#000';
+ var textTransform = 'none' || this.containerPropertyAsString('text-transform') || 'none';
+ var fontSize = 16 || this.containerPropertyAsString('font-size') || 16;
+
+ // fill the style with the default stylesheet
+ this
+ .selector('node, edge') // common properties
+ .css({
+ 'text-valign': 'top',
+ 'text-halign': 'center',
+ 'color': color,
+ 'text-outline-color': '#000',
+ 'text-outline-width': 0,
+ 'text-outline-opacity': 1,
+ 'text-opacity': 1,
+ 'text-decoration': 'none',
+ 'text-transform': textTransform,
+ 'font-family': fontFamily,
+ 'font-style': fontStyle,
+ // 'font-variant': fontVariant,
+ 'font-weight': fontWeight,
+ 'font-size': fontSize,
+ 'min-zoomed-font-size': 0,
+ 'visibility': 'visible',
+ 'display': 'element',
+ 'opacity': 1,
+ 'z-index': 0,
+ 'content': '',
+ 'overlay-opacity': 0,
+ 'overlay-color': '#000',
+ 'overlay-padding': 10,
+ 'transition-property': 'none',
+ 'transition-duration': 0,
+ 'transition-delay': 0,
+
+ // node props
+ 'background-blacken': 0,
+ 'background-color': '#888',
+ 'background-opacity': 1,
+ 'background-image': 'none',
+ 'background-image-opacity': 1,
+ 'background-position-x': '50%',
+ 'background-position-y': '50%',
+ 'background-repeat': 'no-repeat',
+ 'background-fit': 'none',
+ 'background-clip': 'node',
+ 'border-color': '#000',
+ 'border-opacity': 1,
+ 'border-width': 0,
+ 'border-style': 'solid',
+ 'height': 30,
+ 'width': 30,
+ 'shape': 'ellipse',
+
+ // compound props
+ 'padding-top': 0,
+ 'padding-bottom': 0,
+ 'padding-left': 0,
+ 'padding-right': 0,
+ 'position': 'origin',
+
+
+ // node pie bg
+ 'pie-size': '100%',
+ 'pie-1-background-color': 'black',
+ 'pie-2-background-color': 'black',
+ 'pie-3-background-color': 'black',
+ 'pie-4-background-color': 'black',
+ 'pie-5-background-color': 'black',
+ 'pie-6-background-color': 'black',
+ 'pie-7-background-color': 'black',
+ 'pie-8-background-color': 'black',
+ 'pie-9-background-color': 'black',
+ 'pie-10-background-color': 'black',
+ 'pie-11-background-color': 'black',
+ 'pie-12-background-color': 'black',
+ 'pie-13-background-color': 'black',
+ 'pie-14-background-color': 'black',
+ 'pie-15-background-color': 'black',
+ 'pie-16-background-color': 'black',
+ 'pie-1-background-size': '0%',
+ 'pie-2-background-size': '0%',
+ 'pie-3-background-size': '0%',
+ 'pie-4-background-size': '0%',
+ 'pie-5-background-size': '0%',
+ 'pie-6-background-size': '0%',
+ 'pie-7-background-size': '0%',
+ 'pie-8-background-size': '0%',
+ 'pie-9-background-size': '0%',
+ 'pie-10-background-size': '0%',
+ 'pie-11-background-size': '0%',
+ 'pie-12-background-size': '0%',
+ 'pie-13-background-size': '0%',
+ 'pie-14-background-size': '0%',
+ 'pie-15-background-size': '0%',
+ 'pie-16-background-size': '0%',
+ 'pie-1-background-opacity': 1,
+ 'pie-2-background-opacity': 1,
+ 'pie-3-background-opacity': 1,
+ 'pie-4-background-opacity': 1,
+ 'pie-5-background-opacity': 1,
+ 'pie-6-background-opacity': 1,
+ 'pie-7-background-opacity': 1,
+ 'pie-8-background-opacity': 1,
+ 'pie-9-background-opacity': 1,
+ 'pie-10-background-opacity': 1,
+ 'pie-11-background-opacity': 1,
+ 'pie-12-background-opacity': 1,
+ 'pie-13-background-opacity': 1,
+ 'pie-14-background-opacity': 1,
+ 'pie-15-background-opacity': 1,
+ 'pie-16-background-opacity': 1,
+
+ // edge props
+ 'source-arrow-shape': 'none',
+ 'mid-source-arrow-shape': 'none',
+ 'target-arrow-shape': 'none',
+ 'mid-target-arrow-shape': 'none',
+ 'source-arrow-color': '#ddd',
+ 'mid-source-arrow-color': '#ddd',
+ 'target-arrow-color': '#ddd',
+ 'mid-target-arrow-color': '#ddd',
+ 'source-arrow-fill': 'filled',
+ 'mid-source-arrow-fill': 'filled',
+ 'target-arrow-fill': 'filled',
+ 'mid-target-arrow-fill': 'filled',
+ 'line-style': 'solid',
+ 'line-color': '#ddd',
+ 'control-point-step-size': 40,
+ 'control-point-weight': 0.5,
+ 'curve-style': 'bezier',
+ 'haystack-radius': 0.8
+ })
+ .selector('$node > node') // compound (parent) node properties
+ .css({
+ 'width': 'auto',
+ 'height': 'auto',
+ 'shape': 'rectangle',
+ 'background-opacity': 0.5,
+ 'padding-top': 10,
+ 'padding-right': 10,
+ 'padding-left': 10,
+ 'padding-bottom': 10
+ })
+ .selector('edge') // just edge properties
+ .css({
+ 'width': 1
+ })
+ .selector(':active')
+ .css({
+ 'overlay-color': 'black',
+ 'overlay-padding': 10,
+ 'overlay-opacity': 0.25
+ })
+ .selector('core') // just core properties
+ .css({
+ 'selection-box-color': '#ddd',
+ 'selection-box-opacity': 0.65,
+ 'selection-box-border-color': '#aaa',
+ 'selection-box-border-width': 1,
+ 'active-bg-color': 'black',
+ 'active-bg-opacity': 0.15,
+ 'active-bg-size': $$.is.touch() ? 40 : 15,
+ 'outside-texture-bg-color': '#000',
+ 'outside-texture-bg-opacity': 0.125
+ })
+ ;
+ };
+
+ // remove all contexts
+ $$.styfn.clear = function(){
+ for( var i = 0; i < this.length; i++ ){
+ this[i] = undefined;
+ }
+ this.length = 0;
+ this._private.newStyle = true;
+
+ return this; // chaining
+ };
+
+ $$.styfn.resetToDefault = function(){
+ this.clear();
+ this.addDefaultStylesheet();
+
+ return this;
+ };
+
+ // builds a style object for the 'core' selector
+ $$.styfn.core = function(){
+ return this._private.coreStyle;
+ };
+
+ // parse a property; return null on invalid; return parsed property otherwise
+ // fields :
+ // - name : the name of the property
+ // - value : the parsed, native-typed value of the property
+ // - strValue : a string value that represents the property value in valid css
+ // - bypass : true iff the property is a bypass property
+ $$.styfn.parse = function( name, value, propIsBypass, propIsFlat ){
+
+ name = $$.util.camel2dash( name ); // make sure the property name is in dash form (e.g. 'property-name' not 'propertyName')
+ var property = $$.style.properties[ name ];
+ var passedValue = value;
+
+ if( !property ){ return null; } // return null on property of unknown name
+ if( value === undefined || value === null ){ return null; } // can't assign null
+
+ var valueIsString = $$.is.string(value);
+ if( valueIsString ){ // trim the value to make parsing easier
+ value = $$.util.trim( value );
+ }
+
+ var type = property.type;
+ if( !type ){ return null; } // no type, no luck
+
+ // check if bypass is null or empty string (i.e. indication to delete bypass property)
+ if( propIsBypass && (value === '' || value === null) ){
+ return {
+ name: name,
+ value: value,
+ bypass: true,
+ deleteBypass: true
+ };
+ }
+
+ // check if value is mapped
+ var data, mapData, layoutData, mapLayoutData;
+ if( !valueIsString || propIsFlat ){
+ // then don't bother to do the expensive regex checks
+
+ } else if(
+ ( data = new RegExp( $$.style.types.data.regex ).exec( value ) ) ||
+ ( layoutData = new RegExp( $$.style.types.layoutData.regex ).exec( value ) )
+ ){
+ if( propIsBypass ){ return false; } // mappers not allowed in bypass
+
+ var isLayout = layoutData !== undefined;
+ data = data || layoutData;
+
+ return {
+ name: name,
+ value: data,
+ strValue: '' + value,
+ mapped: isLayout ? $$.style.types.layoutData : $$.style.types.data,
+ field: data[1],
+ bypass: propIsBypass,
+ hasPie: name.match(/pie-(\d+)-background-size/)
+ };
+
+ } else if(
+ ( mapData = new RegExp( $$.style.types.mapData.regex ).exec( value ) ) ||
+ ( mapLayoutData = new RegExp( $$.style.types.mapLayoutData.regex ).exec( value ) )
+ ){
+ if( propIsBypass ){ return false; } // mappers not allowed in bypass
+
+ var isLayout = mapLayoutData !== undefined;
+ mapData = mapData || mapLayoutData;
+
+ // we can map only if the type is a colour or a number
+ if( !(type.color || type.number) ){ return false; }
+
+ var valueMin = this.parse( name, mapData[4]); // parse to validate
+ if( !valueMin || valueMin.mapped ){ return false; } // can't be invalid or mapped
+
+ var valueMax = this.parse( name, mapData[5]); // parse to validate
+ if( !valueMax || valueMax.mapped ){ return false; } // can't be invalid or mapped
+
+ // check if valueMin and valueMax are the same
+ if( valueMin.value === valueMax.value ){
+ return false; // can't make much of a mapper without a range
+
+ } else if( type.color ){
+ var c1 = valueMin.value;
+ var c2 = valueMax.value;
+
+ var same = c1[0] === c2[0] // red
+ && c1[1] === c2[1] // green
+ && c1[2] === c2[2] // blue
+ && ( // optional alpha
+ c1[3] === c2[3] // same alpha outright
+ || (
+ (c1[3] == null || c1[3] === 1) // full opacity for colour 1?
+ &&
+ (c2[3] == null || c2[3] === 1) // full opacity for colour 2?
+ )
+ )
+ ;
+
+ if( same ){ return false; } // can't make a mapper without a range
+ }
+
+ return {
+ name: name,
+ value: mapData,
+ strValue: '' + value,
+ mapped: isLayout ? $$.style.types.mapLayoutData : $$.style.types.mapData,
+ field: mapData[1],
+ fieldMin: parseFloat( mapData[2] ), // min & max are numeric
+ fieldMax: parseFloat( mapData[3] ),
+ valueMin: valueMin.value,
+ valueMax: valueMax.value,
+ bypass: propIsBypass,
+ hasPie: name.match(/pie-(\d+)-background-size/)
+ };
+ }
+
+ // check the type and return the appropriate object
+ if( type.number ){
+ var units;
+ var implicitUnits = 'px'; // not set => px
+
+ if( type.units ){ // use specified units if set
+ units = type.units;
+ }
+
+ if( type.implicitUnits ){
+ implicitUnits = type.implicitUnits;
+ }
+
+ if( !type.unitless ){
+ if( valueIsString ){
+ var unitsRegex = 'px|em' + (type.allowPercent ? '|\\%' : '');
+ if( units ){ unitsRegex = units; } // only allow explicit units if so set
+ var match = value.match( '^(' + $$.util.regex.number + ')(' + unitsRegex + ')?' + '$' );
+
+ if( match ){
+ value = match[1];
+ units = match[2] || implicitUnits;
+ }
+
+ } else if( !units || type.implicitUnits ) {
+ units = implicitUnits; // implicitly px if unspecified
+ }
+ }
+
+ value = parseFloat( value );
+
+ // if not a number and enums not allowed, then the value is invalid
+ if( isNaN(value) && type.enums === undefined ){
+ return null;
+ }
+
+ // check if this number type also accepts special keywords in place of numbers
+ // (i.e. `left`, `auto`, etc)
+ if( isNaN(value) && type.enums !== undefined ){
+ value = passedValue;
+
+ for( var i = 0; i < type.enums.length; i++ ){
+ var en = type.enums[i];
+
+ if( en === value ){
+ return {
+ name: name,
+ value: value,
+ strValue: '' + value,
+ bypass: propIsBypass
+ };
+ }
+ }
+
+ return null; // failed on enum after failing on number
+ }
+
+ // check if value must be an integer
+ if( type.integer && !$$.is.integer(value) ){
+ return null;
+ }
+
+ // check value is within range
+ if( (type.min !== undefined && value < type.min)
+ || (type.max !== undefined && value > type.max)
+ ){
+ return null;
+ }
+
+ var ret = {
+ name: name,
+ value: value,
+ strValue: '' + value + (units ? units : ''),
+ units: units,
+ bypass: propIsBypass,
+ hasPie: name.match(/pie-(\d+)-background-size/) && value != null && value !== 0 && value !== ''
+ };
+
+ // normalise value in pixels
+ if( type.unitless || (units !== 'px' && units !== 'em') ){
+ // then pxValue does not apply
+ } else {
+ ret.pxValue = ( units === 'px' || !units ? (value) : (this.getEmSizeInPixels() * value) );
+ }
+
+ // normalise value in ms
+ if( units === 'ms' || units === 's' ){
+ ret.msValue = units === 'ms' ? value : 1000 * value;
+ }
+
+ return ret;
+
+ } else if( type.propList ) {
+
+ var props = [];
+ var propsStr = '' + value;
+
+ if( propsStr === 'none' ){
+ // leave empty
+
+ } else { // go over each prop
+
+ var propsSplit = propsStr.split(',');
+ for( var i = 0; i < propsSplit.length; i++ ){
+ var propName = $$.util.trim( propsSplit[i] );
+
+ if( $$.style.properties[propName] ){
+ props.push( propName );
+ }
+ }
+
+ if( props.length === 0 ){ return null; }
+
+ }
+
+ return {
+ name: name,
+ value: props,
+ strValue: props.length === 0 ? 'none' : props.join(', '),
+ bypass: propIsBypass
+ };
+
+ } else if( type.color ){
+ var tuple = $$.util.color2tuple( value );
+
+ if( !tuple ){ return null; }
+
+ return {
+ name: name,
+ value: tuple,
+ strValue: '' + value,
+ bypass: propIsBypass
+ };
+
+ } else if( type.enums ){
+ for( var i = 0; i < type.enums.length; i++ ){
+ var en = type.enums[i];
+
+ if( en === value ){
+ return {
+ name: name,
+ value: value,
+ strValue: '' + value,
+ bypass: propIsBypass
+ };
+ }
+ }
+
+ return null;
+
+ } else if( type.regex ){
+ var regex = new RegExp( type.regex ); // make a regex from the type
+ var m = regex.exec( value );
+
+ if( m ){ // regex matches
+ return {
+ name: name,
+ value: m,
+ strValue: '' + value,
+ bypass: propIsBypass
+ };
+ } else { // regex doesn't match
+ return null; // didn't match the regex so the value is bogus
+ }
+
+ } else if( type.string ){
+ // just return
+ return {
+ name: name,
+ value: value,
+ strValue: '' + value,
+ bypass: propIsBypass
+ };
+
+ } else {
+ return null; // not a type we can handle
+ }
+
+ };
+
+ // create a new context from the specified selector string and switch to that context
+ $$.styfn.selector = function( selectorStr ){
+ // 'core' is a special case and does not need a selector
+ var selector = selectorStr === 'core' ? null : new $$.Selector( selectorStr );
+
+ var i = this.length++; // new context means new index
+ this[i] = {
+ selector: selector,
+ properties: [],
+ mappedProperties: [],
+ index: i
+ };
+
+ return this; // chaining
+ };
+
+ // add one or many css rules to the current context
+ $$.styfn.css = function(){
+ var args = arguments;
+
+ switch( args.length ){
+ case 1:
+ var map = args[0];
+
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var mapVal = map[ prop.name ];
+
+ if( mapVal === undefined ){
+ mapVal = map[ $$.util.dash2camel(prop.name) ];
+ }
+
+ if( mapVal !== undefined ){
+ this.cssRule( prop.name, mapVal );
+ }
+ }
+
+ break;
+
+ case 2:
+ this.cssRule( args[0], args[1] );
+ break;
+
+ default:
+ break; // do nothing if args are invalid
+ }
+
+ return this; // chaining
+ };
+
+ // add a single css rule to the current context
+ $$.styfn.cssRule = function( name, value ){
+ // name-value pair
+ var property = this.parse( name, value );
+
+ // add property to current context if valid
+ if( property ){
+ var i = this.length - 1;
+ this[i].properties.push( property );
+ this[i].properties[ property.name ] = property; // allow access by name as well
+
+ if( property.hasPie ){
+ this._private.hasPie = true;
+ }
+
+ if( property.mapped ){
+ this[i].mappedProperties.push( property );
+ }
+
+ // add to core style if necessary
+ var currentSelectorIsCore = !this[i].selector;
+ if( currentSelectorIsCore ){
+ this._private.coreStyle[ property.name ] = property;
+ }
+ }
+
+ return this; // chaining
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ // (potentially expensive calculation)
+ // apply the style to the element based on
+ // - its bypass
+ // - what selectors match it
+ $$.styfn.apply = function( eles ){
+ var self = this;
+
+ if( self._private.newStyle ){ // clear style caches
+ this._private.contextStyles = {};
+ this._private.propDiffs = {};
+ }
+
+ for( var ie = 0; ie < eles.length; ie++ ){
+ var ele = eles[ie];
+ var cxtMeta = self.getContextMeta( ele );
+ var cxtStyle = self.getContextStyle( cxtMeta );
+ var app = self.applyContextStyle( cxtMeta, cxtStyle, ele );
+
+ self.updateTransitions( ele, app.diffProps );
+ self.updateStyleHints( ele );
+
+ } // for elements
+
+ self._private.newStyle = false;
+ };
+
+ $$.styfn.getPropertiesDiff = function( oldCxtKey, newCxtKey ){
+ var self = this;
+ var cache = self._private.propDiffs = self._private.propDiffs || {};
+ var dualCxtKey = oldCxtKey + '-' + newCxtKey;
+ var cachedVal = cache[dualCxtKey];
+
+ if( cachedVal ){
+ return cachedVal;
+ }
+
+ var diffProps = [];
+ var addedProp = {};
+
+ for( var i = 0; i < self.length; i++ ){
+ var cxt = self[i];
+ var oldHasCxt = oldCxtKey[i] === 't';
+ var newHasCxt = newCxtKey[i] === 't';
+ var cxtHasDiffed = oldHasCxt !== newHasCxt;
+ var cxtHasMappedProps = cxt.mappedProperties.length > 0;
+
+ if( cxtHasDiffed || cxtHasMappedProps ){
+ var props;
+
+ if( cxtHasDiffed && cxtHasMappedProps ){
+ props = cxt.properties; // suffices b/c mappedProperties is a subset of properties
+ } else if( cxtHasDiffed ){
+ props = cxt.properties; // need to check them all
+ } else if( cxtHasMappedProps ){
+ props = cxt.mappedProperties; // only need to check mapped
+ }
+
+ for( var j = 0; j < props.length; j++ ){
+ var prop = props[j];
+ var name = prop.name;
+
+ // if a later context overrides this property, then the fact that this context has switched/diffed doesn't matter
+ // (semi expensive check since it makes this function O(n^2) on context length, but worth it since overall result
+ // is cached)
+ var laterCxtOverrides = false;
+ for( var k = i + 1; k < self.length; k++ ){
+ var laterCxt = self[k];
+ var hasLaterCxt = newCxtKey[k] === 't';
+
+ if( !hasLaterCxt ){ continue; } // can't override unless the context is active
+
+ laterCxtOverrides = laterCxt.properties[ prop.name ] != null;
+
+ if( laterCxtOverrides ){ break; } // exit early as long as one later context overrides
+ }
+
+ if( !addedProp[name] && !laterCxtOverrides ){
+ addedProp[name] = true;
+ diffProps.push( name );
+ }
+ } // for props
+ } // if
+
+ } // for contexts
+
+ cache[ dualCxtKey ] = diffProps;
+ return diffProps;
+ };
+
+ $$.styfn.getContextMeta = function( ele ){
+ var self = this;
+ var cxtKey = '';
+ var diffProps;
+ var prevKey = ele._private.styleCxtKey || '';
+
+ if( self._private.newStyle ){
+ prevKey = ''; // since we need to apply all style if a fresh stylesheet
+ }
+
+ // get the cxt key
+ for( var i = 0; i < self.length; i++ ){
+ var context = self[i];
+ var contextSelectorMatches = context.selector && context.selector.matches( ele ); // NB: context.selector may be null for 'core'
+
+ if( contextSelectorMatches ){
+ cxtKey += 't';
+ } else {
+ cxtKey += 'f';
+ }
+ } // for context
+
+ diffProps = self.getPropertiesDiff( prevKey, cxtKey );
+
+ ele._private.styleCxtKey = cxtKey;
+
+ return {
+ key: cxtKey,
+ diffPropNames: diffProps
+ };
+ };
+
+ // gets a computed ele style object based on matched contexts
+ $$.styfn.getContextStyle = function( cxtMeta ){
+ var cxtKey = cxtMeta.key;
+ var self = this;
+ var cxtStyles = this._private.contextStyles = this._private.contextStyles || {};
+
+ // if already computed style, returned cached copy
+ if( cxtStyles[cxtKey] ){ return cxtStyles[cxtKey]; }
+
+ var style = {
+ _private: {
+ key: cxtKey
+ }
+ };
+
+ for( var i = 0; i < self.length; i++ ){
+ var cxt = self[i];
+ var hasCxt = cxtKey[i] === 't';
+
+ if( !hasCxt ){ continue; }
+
+ for( var j = 0; j < cxt.properties.length; j++ ){
+ var prop = cxt.properties[j];
+ var styProp = style[ prop.name ] = prop;
+
+ styProp.context = cxt;
+ }
+ }
+
+ cxtStyles[cxtKey] = style;
+ return style;
+ };
+
+ $$.styfn.applyContextStyle = function( cxtMeta, cxtStyle, ele ){
+ var self = this;
+ var diffProps = cxtMeta.diffPropNames;
+ var retDiffProps = {};
+
+ for( var i = 0; i < diffProps.length; i++ ){
+ var diffPropName = diffProps[i];
+ var cxtProp = cxtStyle[ diffPropName ];
+ var eleProp = ele._private.style[ diffPropName ];
+
+ // save cycles when the context prop doesn't need to be applied
+ if( !cxtProp || eleProp === cxtProp ){ continue; }
+
+ var retDiffProp = retDiffProps[ diffPropName ] = {
+ prev: eleProp
+ };
+
+ self.applyParsedProperty( ele, cxtProp );
+
+ retDiffProp.next = ele._private.style[ diffPropName ];
+
+ if( retDiffProp.next.bypass ){
+ retDiffProp.next = retDiffProp.next.bypassed;
+ }
+ }
+
+ return {
+ diffProps: retDiffProps
+ };
+ };
+
+ $$.styfn.updateStyleHints = function(ele){
+ var _p = ele._private;
+ var self = this;
+ var style = _p.style;
+
+ // set whether has pie or not; for greater efficiency
+ var hasPie = false;
+ if( _p.group === 'nodes' && self._private.hasPie ){
+ for( var i = 1; i <= $$.style.pieBackgroundN; i++ ){ // 1..N
+ var size = _p.style['pie-' + i + '-background-size'].value;
+
+ if( size > 0 ){
+ hasPie = true;
+ break;
+ }
+ }
+ }
+
+ _p.hasPie = hasPie;
+
+ var transform = style['text-transform'].strValue;
+ var content = style['content'].strValue;
+ var fStyle = style['font-style'].strValue;
+ var size = style['font-size'].pxValue + 'px';
+ var family = style['font-family'].strValue;
+ // var variant = style['font-variant'].strValue;
+ var weight = style['font-weight'].strValue;
+ var valign = style['text-valign'].strValue;
+ var halign = style['text-valign'].strValue;
+ var oWidth = style['text-outline-width'].pxValue;
+ _p.labelKey = fStyle +'$'+ size +'$'+ family +'$'+ weight +'$'+ content +'$'+ transform +'$'+ valign +'$'+ halign +'$'+ oWidth;
+ _p.fontKey = fStyle +'$'+ weight +'$'+ size +'$'+ family;
+
+ var width = style['width'].pxValue;
+ var height = style['height'].pxValue;
+ var borderW = style['border-width'].pxValue;
+ _p.boundingBoxKey = width +'$'+ height +'$'+ borderW;
+
+ if( ele._private.group === 'edges' ){
+ var cpss = style['control-point-step-size'].pxValue;
+ var cpd = style['control-point-distance'] ? style['control-point-distance'].pxValue : undefined;
+ var cpw = style['control-point-weight'].value;
+ var curve = style['curve-style'].strValue;
+
+ _p.boundingBoxKey += '$'+ cpss +'$'+ cpd +'$'+ cpw +'$'+ curve;
+ }
+
+ _p.styleKey = Date.now(); // probably safe to use applied time and much faster
+ // for( var i = 0; i < $$.style.properties.length; i++ ){
+ // var prop = $$.style.properties[i];
+ // var eleProp = _p.style[ prop.name ];
+ // var val = eleProp && eleProp.strValue ? eleProp.strValue : 'undefined';
+
+ // _p.styleKey += '$' + val;
+ // }
+ };
+
+ // apply a property to the style (for internal use)
+ // returns whether application was successful
+ //
+ // now, this function flattens the property, and here's how:
+ //
+ // for parsedProp:{ bypass: true, deleteBypass: true }
+ // no property is generated, instead the bypass property in the
+ // element's style is replaced by what's pointed to by the `bypassed`
+ // field in the bypass property (i.e. restoring the property the
+ // bypass was overriding)
+ //
+ // for parsedProp:{ mapped: truthy }
+ // the generated flattenedProp:{ mapping: prop }
+ //
+ // for parsedProp:{ bypass: true }
+ // the generated flattenedProp:{ bypassed: parsedProp }
+ $$.styfn.applyParsedProperty = function( ele, parsedProp ){
+ var prop = parsedProp;
+ var style = ele._private.style;
+ var fieldVal, flatProp;
+ var type = $$.style.properties[ prop.name ].type;
+ var propIsBypass = prop.bypass;
+ var origProp = style[ prop.name ];
+ var origPropIsBypass = origProp && origProp.bypass;
+
+ // can't apply auto to width or height unless it's a parent node
+ if( (parsedProp.name === 'height' || parsedProp.name === 'width') && parsedProp.value === 'auto' && ele.isNode() && !ele.isParent() ){
+ return false;
+ }
+
+ // check if we need to delete the current bypass
+ if( propIsBypass && prop.deleteBypass ){ // then this property is just here to indicate we need to delete
+ var currentProp = style[ prop.name ];
+
+ // can only delete if the current prop is a bypass and it points to the property it was overriding
+ if( !currentProp ){
+ return true; // property is already not defined
+ } else if( currentProp.bypass && currentProp.bypassed ){ // then replace the bypass property with the original
+
+ // because the bypassed property was already applied (and therefore parsed), we can just replace it (no reapplying necessary)
+ style[ prop.name ] = currentProp.bypassed;
+ return true;
+
+ } else {
+ return false; // we're unsuccessful deleting the bypass
+ }
+ }
+
+ // put the property in the style objects
+ switch( prop.mapped ){ // flatten the property if mapped
+ case $$.style.types.mapData:
+ case $$.style.types.mapLayoutData:
+
+ var isLayout = prop.mapped === $$.style.types.mapLayoutData;
+
+ // flatten the field (e.g. data.foo.bar)
+ var fields = prop.field.split(".");
+ var fieldVal = isLayout ? ele._private.layoutData : ele._private.data;
+ for( var i = 0; i < fields.length && fieldVal; i++ ){
+ var field = fields[i];
+ fieldVal = fieldVal[ field ];
+ }
+
+ var percent;
+ if( !$$.is.number(fieldVal) ){ // then keep the mapping but assume 0% for now
+ percent = 0;
+ } else {
+ percent = (fieldVal - prop.fieldMin) / (prop.fieldMax - prop.fieldMin);
+ }
+
+ // make sure to bound percent value
+ if( percent < 0 ){
+ percent = 0;
+ } else if( percent > 1 ){
+ percent = 1;
+ }
+
+ if( type.color ){
+ var r1 = prop.valueMin[0];
+ var r2 = prop.valueMax[0];
+ var g1 = prop.valueMin[1];
+ var g2 = prop.valueMax[1];
+ var b1 = prop.valueMin[2];
+ var b2 = prop.valueMax[2];
+ var a1 = prop.valueMin[3] == null ? 1 : prop.valueMin[3];
+ var a2 = prop.valueMax[3] == null ? 1 : prop.valueMax[3];
+
+ var clr = [
+ Math.round( r1 + (r2 - r1)*percent ),
+ Math.round( g1 + (g2 - g1)*percent ),
+ Math.round( b1 + (b2 - b1)*percent ),
+ Math.round( a1 + (a2 - a1)*percent )
+ ];
+
+ flatProp = { // colours are simple, so just create the flat property instead of expensive string parsing
+ bypass: prop.bypass, // we're a bypass if the mapping property is a bypass
+ name: prop.name,
+ value: clr,
+ strValue: 'rgb(' + clr[0] + ', ' + clr[1] + ', ' + clr[2] + ')'
+ };
+
+ } else if( type.number ){
+ var calcValue = prop.valueMin + (prop.valueMax - prop.valueMin) * percent;
+ flatProp = this.parse( prop.name, calcValue, prop.bypass, true );
+
+ } else {
+ return false; // can only map to colours and numbers
+ }
+
+ if( !flatProp ){ // if we can't flatten the property, then use the origProp so we still keep the mapping itself
+ flatProp = this.parse( prop.name, origProp.strValue, prop.bypass, true );
+ }
+
+ flatProp.mapping = prop; // keep a reference to the mapping
+ prop = flatProp; // the flattened (mapped) property is the one we want
+
+ break;
+
+ // direct mapping
+ case $$.style.types.data:
+ case $$.style.types.layoutData:
+
+ var isLayout = prop.mapped === $$.style.types.layoutData;
+
+ // flatten the field (e.g. data.foo.bar)
+ var fields = prop.field.split(".");
+ var fieldVal = isLayout ? ele._private.layoutData : ele._private.data;
+ for( var i = 0; i < fields.length && fieldVal; i++ ){
+ var field = fields[i];
+ fieldVal = fieldVal[ field ];
+ }
+
+ flatProp = this.parse( prop.name, fieldVal, prop.bypass, true );
+
+ if( !flatProp ){ // if we can't flatten the property, then use the origProp so we still keep the mapping itself
+ var flatPropVal = origProp ? origProp.strValue : '';
+
+ flatProp = this.parse( prop.name, flatPropVal, prop.bypass, true );
+ }
+
+ flatProp.mapping = prop; // keep a reference to the mapping
+ prop = flatProp; // the flattened (mapped) property is the one we want
+ break;
+
+ case undefined:
+ break; // just set the property
+
+ default:
+ return false; // not a valid mapping
+ }
+
+ // if the property is a bypass property, then link the resultant property to the original one
+ if( propIsBypass ){
+ if( origPropIsBypass ){ // then this bypass overrides the existing one
+ prop.bypassed = origProp.bypassed; // steal bypassed prop from old bypass
+ } else { // then link the orig prop to the new bypass
+ prop.bypassed = origProp;
+ }
+
+ style[ prop.name ] = prop; // and set
+
+ } else { // prop is not bypass
+ if( origPropIsBypass ){ // then keep the orig prop (since it's a bypass) and link to the new prop
+ origProp.bypassed = prop;
+ } else { // then just replace the old prop with the new one
+ style[ prop.name ] = prop;
+ }
+ }
+
+ return true;
+ };
+
+ // updates the visual style for all elements (useful for manual style modification after init)
+ $$.styfn.update = function(){
+ var cy = this._private.cy;
+ var eles = cy.elements();
+
+ eles.updateStyle();
+ };
+
+ // just update the functional properties (i.e. mappings) in the elements'
+ // styles (less expensive than recalculation)
+ $$.styfn.updateMappers = function( eles ){
+ for( var i = 0; i < eles.length; i++ ){ // for each ele
+ var ele = eles[i];
+ var style = ele._private.style;
+
+ for( var j = 0; j < $$.style.properties.length; j++ ){ // for each prop
+ var prop = $$.style.properties[j];
+ var propInStyle = style[ prop.name ];
+
+ if( propInStyle && propInStyle.mapping ){
+ var mapping = propInStyle.mapping;
+ this.applyParsedProperty( ele, mapping ); // reapply the mapping property
+ }
+ }
+
+ this.updateStyleHints( ele );
+ }
+ };
+
+ // diffProps : { name => { prev, next } }
+ $$.styfn.updateTransitions = function( ele, diffProps, isBypass ){
+ var self = this;
+ var style = ele._private.style;
+
+ var props = style['transition-property'].value;
+ var duration = style['transition-duration'].msValue;
+ var delay = style['transition-delay'].msValue;
+ var css = {};
+
+ if( props.length > 0 && duration > 0 ){
+
+ // build up the style to animate towards
+ var anyPrev = false;
+ for( var i = 0; i < props.length; i++ ){
+ var prop = props[i];
+ var styProp = style[ prop ];
+ var diffProp = diffProps[ prop ];
+
+ if( !diffProp ){ continue; }
+
+ var prevProp = diffProp.prev;
+ var fromProp = prevProp;
+ var toProp = diffProp.next != null ? diffProp.next : styProp;
+ var diff = false;
+
+ if( !fromProp ){ continue; }
+
+ // consider px values
+ if( $$.is.number( fromProp.pxValue ) && $$.is.number( toProp.pxValue ) ){
+ diff = fromProp.pxValue !== toProp.pxValue;
+
+ // consider numerical values
+ } else if( $$.is.number( fromProp.value ) && $$.is.number( toProp.value ) ){
+ diff = fromProp.value !== toProp.value;
+
+ // consider colour values
+ } else if( $$.is.array( fromProp.value ) && $$.is.array( toProp.value ) ){
+ diff = fromProp.value[0] !== toProp.value[0]
+ || fromProp.value[1] !== toProp.value[1]
+ || fromProp.value[2] !== toProp.value[2]
+ ;
+ }
+
+ // the previous value is good for an animation only if it's different
+ if( diff ){
+ css[ prop ] = toProp.strValue; // to val
+ this.applyBypass(ele, prop, fromProp.strValue); // from val
+ anyPrev = true;
+ }
+
+ } // end if props allow ani
+
+ // can't transition if there's nothing previous to transition from
+ if( !anyPrev ){ return; }
+
+ ele._private.transitioning = true;
+
+ ele.stop();
+
+ if( delay > 0 ){
+ ele.delay( delay );
+ }
+
+ ele.animate({
+ css: css
+ }, {
+ duration: duration,
+ queue: false,
+ complete: function(){
+ if( !isBypass ){
+ self.removeBypasses( ele, props );
+ }
+
+ ele._private.transitioning = false;
+ }
+ });
+
+ } else if( ele._private.transitioning ){
+ ele.stop();
+
+ this.removeBypasses( ele, props );
+
+ ele._private.transitioning = false;
+ }
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ // bypasses are applied to an existing style on an element, and just tacked on temporarily
+ // returns true iff application was successful for at least 1 specified property
+ $$.styfn.applyBypass = function( eles, name, value, updateTransitions ){
+ var props = [];
+ var isBypass = true;
+
+ // put all the properties (can specify one or many) in an array after parsing them
+ if( name === "*" || name === "**" ){ // apply to all property names
+
+ if( value !== undefined ){
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var name = prop.name;
+
+ var parsedProp = this.parse(name, value, true);
+
+ if( parsedProp ){
+ props.push( parsedProp );
+ }
+ }
+ }
+
+ } else if( $$.is.string(name) ){ // then parse the single property
+ var parsedProp = this.parse(name, value, true);
+
+ if( parsedProp ){
+ props.push( parsedProp );
+ }
+ } else if( $$.is.plainObject(name) ){ // then parse each property
+ var specifiedProps = name;
+ updateTransitions = value;
+
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var name = prop.name;
+ var value = specifiedProps[ name ];
+
+ if( value === undefined ){ // try camel case name too
+ value = specifiedProps[ $$.util.dash2camel(name) ];
+ }
+
+ if( value !== undefined ){
+ var parsedProp = this.parse(name, value, true);
+
+ if( parsedProp ){
+ props.push( parsedProp );
+ }
+ }
+ }
+ } else { // can't do anything without well defined properties
+ return false;
+ }
+
+ // we've failed if there are no valid properties
+ if( props.length === 0 ){ return false; }
+
+ // now, apply the bypass properties on the elements
+ var ret = false; // return true if at least one succesful bypass applied
+ for( var i = 0; i < eles.length; i++ ){ // for each ele
+ var ele = eles[i];
+ var style = ele._private.style;
+ var diffProps = {};
+ var diffProp;
+
+ for( var j = 0; j < props.length; j++ ){ // for each prop
+ var prop = props[j];
+
+ if( updateTransitions ){
+ var prevProp = style[ prop.name ];
+ diffProp = diffProps[ prop.name ] = { prev: prevProp };
+ }
+
+ ret = this.applyParsedProperty( ele, prop ) || ret;
+
+ if( updateTransitions ){
+ diffProp.next = style[ prop.name ];
+ }
+
+ } // for props
+
+ if( updateTransitions ){
+ this.updateTransitions( ele, diffProps, isBypass );
+ }
+ } // for eles
+
+ return ret;
+ };
+
+ // only useful in specific cases like animation
+ $$.styfn.overrideBypass = function( eles, name, value ){
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var prop = ele._private.style[ $$.util.camel2dash(name) ];
+
+ if( !prop.bypass ){ // need a bypass if one doesn't exist
+ this.applyBypass( ele, name, value );
+ continue;
+ }
+
+ prop.value = value;
+ prop.pxValue = value;
+ }
+ };
+
+ $$.styfn.removeAllBypasses = function( eles, updateTransitions ){
+ var isBypass = true;
+
+ for( var j = 0; j < eles.length; j++ ){
+ var ele = eles[j];
+ var diffProps = {};
+ var style = ele._private.style;
+
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var name = prop.name;
+ var value = ''; // empty => remove bypass
+ var parsedProp = this.parse(name, value, true);
+ var prevProp = style[ prop.name ];
+ var diffProp = diffProps[ prop.name ] = { prev: prevProp };
+
+ this.applyParsedProperty(ele, parsedProp);
+
+ diffProp.next = style[ prop.name ];
+ } // for props
+
+ if( updateTransitions ){
+ this.updateTransitions( ele, diffProps, isBypass );
+ }
+ } // for eles
+ };
+
+ $$.styfn.removeBypasses = function( eles, props, updateTransitions ){
+ var isBypass = true;
+
+ for( var j = 0; j < eles.length; j++ ){
+ var ele = eles[j];
+ var diffProps = {};
+ var style = ele._private.style;
+
+ for( var i = 0; i < props.length; i++ ){
+ var name = props[i];
+ var prop = $$.style.properties[ name ];
+ var value = ''; // empty => remove bypass
+ var parsedProp = this.parse(name, value, true);
+ var prevProp = style[ prop.name ];
+ var diffProp = diffProps[ prop.name ] = { prev: prevProp };
+
+ this.applyParsedProperty(ele, parsedProp);
+
+ diffProp.next = style[ prop.name ];
+ } // for props
+
+ if( updateTransitions ){
+ this.updateTransitions( ele, diffProps, isBypass );
+ }
+ } // for eles
+ };
+
+})( cytoscape );
+;(function($$, window){ 'use strict';
+
+ // gets what an em size corresponds to in pixels relative to a dom element
+ $$.styfn.getEmSizeInPixels = function(){
+ var cy = this._private.cy;
+ var domElement = cy.container();
+
+ if( window && domElement && window.getComputedStyle ){
+ var pxAsStr = window.getComputedStyle(domElement).getPropertyValue('font-size');
+ var px = parseFloat( pxAsStr );
+ return px;
+ } else {
+ return 1; // in case we're running outside of the browser
+ }
+ };
+
+ // gets css property from the core container
+ $$.styfn.containerCss = function( propName ){
+ var cy = this._private.cy;
+ var domElement = cy.container();
+
+ if( window && domElement && window.getComputedStyle ){
+ return window.getComputedStyle(domElement).getPropertyValue( propName );
+ }
+ };
+
+ $$.styfn.containerProperty = function( propName ){
+ var propStr = this.containerCss( propName );
+ var prop = this.parse( propName, propStr );
+ return prop;
+ };
+
+ $$.styfn.containerPropertyAsString = function( propName ){
+ var prop = this.containerProperty( propName );
+
+ if( prop ){
+ return prop.strValue;
+ }
+ };
+
+})( cytoscape, typeof window === 'undefined' ? null : window );
+;(function($$){ 'use strict';
+
+ // gets the rendered style for an element
+ $$.styfn.getRenderedStyle = function( ele ){
+ var ele = ele[0]; // insure it's an element
+
+ if( ele ){
+ var rstyle = {};
+ var style = ele._private.style;
+ var cy = this._private.cy;
+ var zoom = cy.zoom();
+
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var styleProp = style[ prop.name ];
+
+ if( styleProp ){
+ var val = styleProp.unitless ? styleProp.strValue : (styleProp.pxValue * zoom) + 'px';
+ rstyle[ prop.name ] = val;
+ rstyle[ $$.util.dash2camel(prop.name) ] = val;
+ }
+ }
+
+ return rstyle;
+ }
+ };
+
+ // gets the raw style for an element
+ $$.styfn.getRawStyle = function( ele ){
+ var ele = ele[0]; // insure it's an element
+
+ if( ele ){
+ var rstyle = {};
+ var style = ele._private.style;
+
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var styleProp = style[ prop.name ];
+
+ if( styleProp ){
+ rstyle[ prop.name ] = styleProp.strValue;
+ rstyle[ $$.util.dash2camel(prop.name) ] = styleProp.strValue;
+ }
+ }
+
+ return rstyle;
+ }
+ };
+
+ // gets the value style for an element (useful for things like animations)
+ $$.styfn.getValueStyle = function( ele, opts ){
+ opts = opts || {};
+
+ var rstyle = opts.array ? [] : {};
+ var style;
+
+ if( $$.is.element(ele) ){
+ style = ele._private.style;
+ } else {
+ style = ele; // just passed the style itself
+ }
+
+ if( style ){
+ for( var i = 0; i < $$.style.properties.length; i++ ){
+ var prop = $$.style.properties[i];
+ var styleProp = style[ prop.name ] || style[ $$.util.dash2camel(prop.name) ];
+
+ if( styleProp !== undefined && !$$.is.plainObject( styleProp ) ){ // then make a prop of it
+ styleProp = this.parse(prop.name, styleProp);
+ }
+
+ if( styleProp ){
+ if( opts.array ){
+ rstyle.push( styleProp );
+ } else {
+ rstyle[ prop.name ] = styleProp;
+ rstyle[ $$.util.dash2camel(prop.name) ] = styleProp;
+ }
+ }
+ }
+ }
+
+ return rstyle;
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ $$.style.applyFromJson = function( style, json ){
+ for( var i = 0; i < json.length; i++ ){
+ var context = json[i];
+ var selector = context.selector;
+ var props = context.css;
+
+ style.selector(selector); // apply selector
+
+ for( var name in props ){
+ var value = props[name];
+
+ style.css( name, value ); // apply property
+ }
+ }
+
+ return style;
+ };
+
+ // static function
+ $$.style.fromJson = function( cy, json ){
+ var style = new $$.Style(cy);
+
+ $$.style.applyFromJson( style, json );
+
+ return style;
+ };
+
+ // accessible cy.style() function
+ $$.styfn.fromJson = function( json ){
+ var style = this;
+
+ style.resetToDefault();
+
+ $$.style.applyFromJson( style, json );
+
+ return style;
+ };
+
+ // get json from cy.style() api
+ $$.styfn.json = function(){
+ var json = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ var cxt = this[i];
+ var selector = cxt.selector;
+ var props = cxt.properties;
+ var css = {};
+
+ for( var j = 0; j < props.length; j++ ){
+ var prop = props[j];
+ css[ prop.name ] = prop.strValue;
+ }
+
+ json.push({
+ selector: !selector ? 'core' : selector.toString(),
+ css: css
+ });
+ }
+
+ return json;
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ $$.style.applyFromString = function( style, string ){
+ var remaining = '' + string;
+ var selAndBlockStr;
+ var blockRem;
+ var propAndValStr;
+
+ // remove comments from the style string
+ remaining = remaining.replace(/[/][*](\s|.)+?[*][/]/g, '');
+
+ function removeSelAndBlockFromRemaining(){
+ // remove the parsed selector and block from the remaining text to parse
+ if( remaining.length > selAndBlockStr.length ){
+ remaining = remaining.substr( selAndBlockStr.length );
+ } else {
+ remaining = '';
+ }
+ }
+
+ function removePropAndValFromRem(){
+ // remove the parsed property and value from the remaining block text to parse
+ if( blockRem.length > propAndValStr.length ){
+ blockRem = blockRem.substr( propAndValStr.length );
+ } else {
+ blockRem = '';
+ }
+ }
+
+ while(true){
+ var nothingLeftToParse = remaining.match(/^\s*$/);
+ if( nothingLeftToParse ){ break; }
+
+ var selAndBlock = remaining.match(/^\s*((?:.|\s)+?)\s*\{((?:.|\s)+?)\}/);
+
+ if( !selAndBlock ){
+ $$.util.error('Halting stylesheet parsing: String stylesheet contains more to parse but no selector and block found in: ' + remaining);
+ break;
+ }
+
+ selAndBlockStr = selAndBlock[0];
+
+ // parse the selector
+ var selectorStr = selAndBlock[1];
+ var selector = new $$.Selector( selectorStr );
+ if( selector._private.invalid && selectorStr !== 'core' ){
+ $$.util.error('Skipping parsing of block: Invalid selector found in string stylesheet: ' + selectorStr);
+
+ // skip this selector and block
+ removeSelAndBlockFromRemaining();
+ continue;
+ }
+
+ // parse the block of properties and values
+ var blockStr = selAndBlock[2];
+ var invalidBlock = false;
+ blockRem = blockStr;
+ var props = [];
+
+ while(true){
+ var nothingLeftToParse = blockRem.match(/^\s*$/);
+ if( nothingLeftToParse ){ break; }
+
+ var propAndVal = blockRem.match(/^\s*(.+?)\s*:\s*(.+?)\s*;/);
+
+ if( !propAndVal ){
+ $$.util.error('Skipping parsing of block: Invalid formatting of style property and value definitions found in:' + blockStr);
+ invalidBlock = true;
+ break;
+ }
+
+ propAndValStr = propAndVal[0];
+ var propStr = propAndVal[1];
+ var valStr = propAndVal[2];
+
+ var prop = $$.style.properties[ propStr ];
+ if( !prop ){
+ $$.util.error('Skipping property: Invalid property name in: ' + propAndValStr);
+
+ // skip this property in the block
+ removePropAndValFromRem();
+ continue;
+ }
+
+ var parsedProp = style.parse( propStr, valStr );
+
+ if( !parsedProp ){
+ $$.util.error('Skipping property: Invalid property definition in: ' + propAndValStr);
+
+ // skip this property in the block
+ removePropAndValFromRem();
+ continue;
+ }
+
+ props.push({
+ name: propStr,
+ val: valStr
+ });
+ removePropAndValFromRem();
+ }
+
+ if( invalidBlock ){
+ removeSelAndBlockFromRemaining();
+ break;
+ }
+
+ // put the parsed block in the style
+ style.selector( selectorStr );
+ for( var i = 0; i < props.length; i++ ){
+ var prop = props[i];
+ style.css( prop.name, prop.val );
+ }
+
+ removeSelAndBlockFromRemaining();
+ }
+
+ return style;
+ };
+
+ $$.style.fromString = function( cy, string ){
+ var style = new $$.Style(cy);
+
+ $$.style.applyFromString( style, string );
+
+ return style;
+ };
+
+ $$.styfn.fromString = function( string ){
+ var style = this;
+
+ style.resetToDefault();
+
+ $$.style.applyFromString( style, string );
+
+ return style;
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // a dummy stylesheet object that doesn't need a reference to the core
+ // (useful for init)
+ $$.stylesheet = $$.Stylesheet = function(){
+ if( !(this instanceof $$.Stylesheet) ){
+ return new $$.Stylesheet();
+ }
+
+ this.length = 0;
+ };
+
+ // just store the selector to be parsed later
+ $$.Stylesheet.prototype.selector = function( selector ){
+ var i = this.length++;
+
+ this[i] = {
+ selector: selector,
+ properties: []
+ };
+
+ return this; // chaining
+ };
+
+ // just store the property to be parsed later
+ $$.Stylesheet.prototype.css = function( name, value ){
+ var i = this.length - 1;
+
+ if( $$.is.string(name) ){
+ this[i].properties.push({
+ name: name,
+ value: value
+ });
+ } else if( $$.is.plainObject(name) ){
+ var map = name;
+
+ for( var j = 0; j < $$.style.properties.length; j++ ){
+ var prop = $$.style.properties[j];
+ var mapVal = map[ prop.name ];
+
+ if( mapVal === undefined ){ // also try camel case name
+ mapVal = map[ $$.util.dash2camel(prop.name) ];
+ }
+
+ if( mapVal !== undefined ){
+ var name = prop.name;
+ var value = mapVal;
+
+ this[i].properties.push({
+ name: name,
+ value: value
+ });
+ }
+ }
+ }
+
+ return this; // chaining
+ };
+
+ // generate a real style object from the dummy stylesheet
+ $$.Stylesheet.prototype.generateStyle = function( cy ){
+ var style = new $$.Style(cy);
+
+ for( var i = 0; i < this.length; i++ ){
+ var context = this[i];
+ var selector = context.selector;
+ var props = context.properties;
+
+ style.selector(selector); // apply selector
+
+ for( var j = 0; j < props.length; j++ ){
+ var prop = props[j];
+
+ style.css( prop.name, prop.value ); // apply property
+ }
+ }
+
+ return style;
+ };
+
+})( cytoscape );
+;(function($$, window){ 'use strict';
+
+ var isTouch = $$.is.touch();
+
+ var defaults = {
+ };
+
+ var origDefaults = $$.util.copy( defaults );
+
+ $$.defaults = function( opts ){
+ defaults = $$.util.extend({}, origDefaults, opts);
+ };
+
+ $$.fn.core = function( fnMap, options ){
+ for( var name in fnMap ){
+ var fn = fnMap[name];
+ $$.Core.prototype[ name ] = fn;
+ }
+ };
+
+ $$.Core = function( opts ){
+ if( !(this instanceof $$.Core) ){
+ return new $$.Core(opts);
+ }
+ var cy = this;
+
+ opts = $$.util.extend({}, defaults, opts);
+
+ var container = opts.container;
+ var reg = container ? container._cyreg : null; // e.g. already registered some info (e.g. readies) via jquery
+ reg = reg || {};
+
+ if( reg && reg.cy ){
+ if( container ){
+ while( container.firstChild ){ // clean the container
+ container.removeChild( container.firstChild );
+ }
+ }
+
+ reg.cy.notify({ type: 'destroy' }); // destroy the renderer
+
+ reg = {}; // old instance => replace reg completely
+ }
+
+ var readies = reg.readies = reg.readies || [];
+
+ if( container ){ container._cyreg = reg; } // make sure container assoc'd reg points to this cy
+ reg.cy = cy;
+
+ var head = window !== undefined && container !== undefined && !opts.headless;
+ var options = opts;
+ options.layout = $$.util.extend( { name: head ? 'grid' : 'null' }, options.layout );
+ options.renderer = $$.util.extend( { name: head ? 'canvas' : 'null' }, options.renderer );
+
+ var defVal = function( def, val, altVal ){
+ if( val !== undefined ){
+ return val;
+ } else if( altVal !== undefined ){
+ return altVal;
+ } else {
+ return def;
+ }
+ };
+
+ var _p = this._private = {
+ container: options.container, // html dom ele container
+ ready: false, // whether ready has been triggered
+ initrender: false, // has initrender has been triggered
+ options: options, // cached options
+ elements: [], // array of elements
+ id2index: {}, // element id => index in elements array
+ listeners: [], // list of listeners
+ aniEles: $$.Collection(this), // elements being animated
+ scratch: {}, // scratch object for core
+ layout: null,
+ renderer: null,
+ notificationsEnabled: true, // whether notifications are sent to the renderer
+ minZoom: 1e-50,
+ maxZoom: 1e50,
+ zoomingEnabled: defVal(true, options.zoomingEnabled),
+ userZoomingEnabled: defVal(true, options.userZoomingEnabled),
+ panningEnabled: defVal(true, options.panningEnabled),
+ userPanningEnabled: defVal(true, options.userPanningEnabled),
+ boxSelectionEnabled: defVal(true, options.boxSelectionEnabled),
+ autolock: defVal(false, options.autolock, options.autolockNodes),
+ autoungrabify: defVal(false, options.autoungrabify, options.autoungrabifyNodes),
+ autounselectify: defVal(false, options.autounselectify),
+ styleEnabled: options.styleEnabled === undefined ? head : options.styleEnabled,
+ zoom: $$.is.number(options.zoom) ? options.zoom : 1,
+ pan: {
+ x: $$.is.plainObject(options.pan) && $$.is.number(options.pan.x) ? options.pan.x : 0,
+ y: $$.is.plainObject(options.pan) && $$.is.number(options.pan.y) ? options.pan.y : 0
+ },
+ animation: { // object for currently-running animations
+ current: [],
+ queue: []
+ },
+ hasCompoundNodes: false,
+ deferredExecQueue: []
+ };
+
+ // set selection type
+ var selType = options.selectionType;
+ if( selType === undefined || (selType !== 'additive' && selType !== 'single') ){
+ // then set default
+
+ if( isTouch ){
+ _p.selectionType = 'additive';
+ } else {
+ _p.selectionType = 'single';
+ }
+ } else {
+ _p.selectionType = selType;
+ }
+
+ // init zoom bounds
+ if( $$.is.number(options.minZoom) && $$.is.number(options.maxZoom) && options.minZoom < options.maxZoom ){
+ _p.minZoom = options.minZoom;
+ _p.maxZoom = options.maxZoom;
+ } else if( $$.is.number(options.minZoom) && options.maxZoom === undefined ){
+ _p.minZoom = options.minZoom;
+ } else if( $$.is.number(options.maxZoom) && options.minZoom === undefined ){
+ _p.maxZoom = options.maxZoom;
+ }
+
+ // init style
+ if( _p.styleEnabled ){
+ this.setStyle( options.style );
+ }
+
+ // create the renderer
+ cy.initRenderer( $$.util.extend({
+ hideEdgesOnViewport: options.hideEdgesOnViewport,
+ hideLabelsOnViewport: options.hideLabelsOnViewport,
+ textureOnViewport: options.textureOnViewport,
+ wheelSensitivity: $$.is.number(options.wheelSensitivity) && options.wheelSensitivity > 0 ? options.wheelSensitivity : 1,
+ motionBlur: options.motionBlur,
+ pixelRatio: $$.is.number(options.pixelRatio) && options.pixelRatio > 0 ? options.pixelRatio : (options.pixelRatio === 'auto' ? undefined : 1)
+ }, options.renderer) );
+
+ // trigger the passed function for the `initrender` event
+ if( options.initrender ){
+ cy.on('initrender', options.initrender);
+ cy.on('initrender', function(){
+ cy._private.initrender = true;
+ });
+ }
+
+ // initial load
+ cy.load(options.elements, function(){ // onready
+ cy.startAnimationLoop();
+ cy._private.ready = true;
+
+ // if a ready callback is specified as an option, the bind it
+ if( $$.is.fn( options.ready ) ){
+ cy.on('ready', options.ready);
+ }
+
+ // bind all the ready handlers registered before creating this instance
+ for( var i = 0; i < readies.length; i++ ){
+ var fn = readies[i];
+ cy.on('ready', fn);
+ }
+ if( reg ){ reg.readies = []; } // clear b/c we've bound them all and don't want to keep it around in case a new core uses the same div etc
+
+ cy.trigger('ready');
+ }, options.done);
+ };
+
+ $$.corefn = $$.Core.prototype; // short alias
+
+
+ $$.fn.core({
+ isReady: function(){
+ return this._private.ready;
+ },
+
+ ready: function( fn ){
+ if( this.isReady() ){
+ this.trigger('ready', [], fn); // just calls fn as though triggered via ready event
+ } else {
+ this.on('ready', fn);
+ }
+ },
+
+ initrender: function(){
+ return this._private.initrender;
+ },
+
+ destroy: function(){
+ this.notify({ type: 'destroy' }); // destroy the renderer
+
+ var domEle = this.container();
+ var parEle = domEle.parentNode;
+ if( parEle ){
+ parEle.removeChild( domEle );
+ }
+
+ return this;
+ },
+
+ getElementById: function( id ){
+ var index = this._private.id2index[ id ];
+ if( index !== undefined ){
+ return this._private.elements[ index ];
+ }
+
+ // worst case, return an empty collection
+ return new $$.Collection( this );
+ },
+
+ selectionType: function(){
+ return this._private.selectionType;
+ },
+
+ hasCompoundNodes: function(){
+ return this._private.hasCompoundNodes;
+ },
+
+ styleEnabled: function(){
+ return this._private.styleEnabled;
+ },
+
+ addToPool: function( eles ){
+ var elements = this._private.elements;
+ var id2index = this._private.id2index;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ var id = ele._private.data.id;
+ var index = id2index[ id ];
+ var alreadyInPool = index !== undefined;
+
+ if( !alreadyInPool ){
+ index = elements.length;
+ elements.push( ele );
+ id2index[ id ] = index;
+ ele._private.index = index;
+ }
+ }
+
+ return this; // chaining
+ },
+
+ removeFromPool: function( eles ){
+ var elements = this._private.elements;
+ var id2index = this._private.id2index;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ var id = ele._private.data.id;
+ var index = id2index[ id ];
+ var inPool = index !== undefined;
+
+ if( inPool ){
+ this._private.id2index[ id ] = undefined;
+ elements.splice(index, 1);
+
+ // adjust the index of all elements past this index
+ for( var j = index; j < elements.length; j++ ){
+ var jid = elements[j]._private.data.id;
+ id2index[ jid ]--;
+ }
+ }
+ }
+ },
+
+ container: function(){
+ return this._private.container;
+ },
+
+ options: function(){
+ return $$.util.copy( this._private.options );
+ },
+
+ json: function(params){
+ var json = {};
+ var cy = this;
+
+ json.elements = {};
+ cy.elements().each(function(i, ele){
+ var group = ele.group();
+
+ if( !json.elements[group] ){
+ json.elements[group] = [];
+ }
+
+ json.elements[group].push( ele.json() );
+ });
+
+ if( this._private.styleEnabled ){
+ json.style = cy.style().json();
+ }
+
+ json.zoomingEnabled = cy._private.zoomingEnabled;
+ json.userZoomingEnabled = cy._private.userZoomingEnabled;
+ json.zoom = cy._private.zoom;
+ json.minZoom = cy._private.minZoom;
+ json.maxZoom = cy._private.maxZoom;
+ json.panningEnabled = cy._private.panningEnabled;
+ json.userPanningEnabled = cy._private.userPanningEnabled;
+ json.pan = cy._private.pan;
+ json.boxSelectionEnabled = cy._private.boxSelectionEnabled;
+ json.layout = cy._private.options.layout;
+ json.renderer = cy._private.options.renderer;
+ json.hideEdgesOnViewport = cy._private.options.hideEdgesOnViewport;
+ json.hideLabelsOnViewport = cy._private.options.hideLabelsOnViewport;
+ json.textureOnViewport = cy._private.options.textureOnViewport;
+ json.wheelSensitivity = cy._private.options.wheelSensitivity;
+ json.motionBlur = cy._private.options.motionBlur;
+
+ return json;
+ },
+
+ // defer execution until not busy and guarantee relative execution order of deferred functions
+ defer: function( fn ){
+ var cy = this;
+ var _p = cy._private;
+ var q = _p.deferredExecQueue;
+
+ q.push( fn );
+
+ if( !_p.deferredTimeout ){
+ _p.deferredTimeout = setTimeout(function(){
+ while( q.length > 0 ){
+ ( q.shift() )();
+ }
+
+ _p.deferredTimeout = null;
+ }, 0);
+ }
+ }
+
+ });
+
+})( cytoscape, typeof window === 'undefined' ? null : window );
+
+(function($$, window){ 'use strict';
+
+ function ready(f) {
+ var fn = ( document && (document.readyState === 'interactive' || document.readyState === 'complete') ) ? f : ready;
+
+ setTimeout(fn, 9, f);
+ }
+
+ $$.fn.core({
+ add: function(opts){
+
+ var elements;
+ var cy = this;
+
+ // add the elements
+ if( $$.is.elementOrCollection(opts) ){
+ var eles = opts;
+
+ if( eles._private.cy === cy ){ // same instance => just restore
+ elements = eles.restore();
+
+ } else { // otherwise, copy from json
+ var jsons = [];
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ jsons.push( ele.json() );
+ }
+
+ elements = new $$.Collection( cy, jsons );
+ }
+ }
+
+ // specify an array of options
+ else if( $$.is.array(opts) ){
+ var jsons = opts;
+
+ elements = new $$.Collection(cy, jsons);
+ }
+
+ // specify via opts.nodes and opts.edges
+ else if( $$.is.plainObject(opts) && ($$.is.array(opts.nodes) || $$.is.array(opts.edges)) ){
+ var elesByGroup = opts;
+ var jsons = [];
+
+ var grs = ['nodes', 'edges'];
+ for( var i = 0, il = grs.length; i < il; i++ ){
+ var group = grs[i];
+ var elesArray = elesByGroup[group];
+
+ if( $$.is.array(elesArray) ){
+
+ for( var j = 0, jl = elesArray.length; j < jl; j++ ){
+ var json = elesArray[j];
+ json.group = group;
+
+ jsons.push( json );
+ }
+ }
+ }
+
+ elements = new $$.Collection(cy, jsons);
+ }
+
+ // specify options for one element
+ else {
+ var json = opts;
+ elements = (new $$.Element( cy, json )).collection();
+ }
+
+ return elements;
+ },
+
+ remove: function(collection){
+ if( $$.is.elementOrCollection(collection) ){
+ collection = collection;
+ } else if( $$.is.string(collection) ){
+ var selector = collection;
+ collection = this.$( selector );
+ }
+
+ return collection.remove();
+ },
+
+ load: function(elements, onload, ondone){
+ var cy = this;
+
+ // remove old elements
+ var oldEles = cy.elements();
+ if( oldEles.length > 0 ){
+ oldEles.remove();
+ }
+
+ cy.notifications(false);
+
+ if( elements != null ){
+ if( $$.is.plainObject(elements) || $$.is.array(elements) ){
+ cy.add( elements );
+ }
+ }
+
+ function callback(){
+ cy.one('layoutready', function(e){
+ cy.notifications(true);
+ cy.trigger(e); // we missed this event by turning notifications off, so pass it on
+
+ cy.notify({
+ type: 'load',
+ collection: cy.elements()
+ });
+
+ cy.one('load', onload);
+ cy.trigger('load');
+ }).one('layoutstop', function(){
+ cy.one('done', ondone);
+ cy.trigger('done');
+ });
+
+ var layoutOpts = $$.util.extend({}, cy._private.options.layout);
+ layoutOpts.eles = cy.$();
+
+ cy.layout( layoutOpts );
+
+ }
+
+ if( window ){
+ ready( callback );
+ } else {
+ callback();
+ }
+
+ return this;
+ }
+ });
+
+})( cytoscape, typeof window === 'undefined' ? null : window );
+
+;(function($$, window){ 'use strict';
+
+ $$.fn.core({
+
+ // pull in animation functions
+ animated: $$.define.animated(),
+ clearQueue: $$.define.clearQueue(),
+ delay: $$.define.delay(),
+ animate: $$.define.animate(),
+ stop: $$.define.stop(),
+
+ addToAnimationPool: function( eles ){
+ var cy = this;
+
+ if( !cy.styleEnabled() ){ return; } // save cycles when no style used
+
+ cy._private.aniEles.merge( eles );
+ },
+
+ startAnimationLoop: function(){
+ var cy = this;
+
+ if( !cy.styleEnabled() ){ return; } // save cycles when no style used
+
+ // don't execute the animation loop in headless environments
+ if( !window ){
+ return;
+ }
+
+ function globalAnimationStep(){
+ $$.util.requestAnimationFrame(function(now){
+ handleElements(now);
+ globalAnimationStep();
+ });
+ }
+
+ globalAnimationStep(); // first call
+
+ function handleElements(now){
+ now = +new Date();
+
+ var eles = cy._private.aniEles;
+ var doneEles = [];
+
+ function handleElement( ele, isCore ){
+ var current = ele._private.animation.current;
+ var queue = ele._private.animation.queue;
+ var ranAnis = false;
+
+ // if nothing currently animating, get something from the queue
+ if( current.length === 0 ){
+ var next = queue.length > 0 ? queue.shift() : null;
+
+ if( next ){
+ next.callTime = now; // was queued, so update call time
+ current.push( next );
+ }
+ }
+
+ // step and remove if done
+ var completes = [];
+ for(var i = current.length - 1; i >= 0; i--){
+ var ani = current[i];
+
+ // start if need be
+ if( !ani.started ){ startAnimation( ele, ani ); }
+
+ step( ele, ani, now, isCore );
+
+ if( ani.done ){
+ completes.push( ani );
+
+ // remove current[i]
+ current.splice(i, 1);
+ }
+
+ ranAnis = true;
+ }
+
+ // call complete callbacks
+ for( var i = 0; i < completes.length; i++ ){
+ var ani = completes[i];
+ var complete = ani.params.complete;
+
+ if( $$.is.fn(complete) ){
+ complete.apply( ele, [ now ] );
+ }
+ }
+
+ if( !isCore && current.length === 0 && queue.length === 0 ){
+ doneEles.push( ele );
+ }
+
+ return ranAnis;
+ } // handleElements
+
+ // handle all eles
+ for( var e = 0; e < eles.length; e++ ){
+ var ele = eles[e];
+
+ handleElement( ele );
+ } // each element
+
+ var ranCoreAni = handleElement( cy, true );
+
+ // notify renderer
+ if( eles.length > 0 || ranCoreAni ){
+ var toNotify;
+
+ if( eles.length > 0 ){
+ var updatedEles = eles.updateCompoundBounds();
+ toNotify = updatedEles.length > 0 ? eles.add( updatedEles ) : eles;
+ }
+
+ cy.notify({
+ type: 'draw',
+ collection: toNotify
+ });
+ }
+
+ // remove elements from list of currently animating if its queues are empty
+ eles.unmerge( doneEles );
+
+ } // handleElements
+
+ function startAnimation( self, ani ){
+ var isCore = $$.is.core( self );
+ var isEles = !isCore;
+ var ele = self;
+ var style = cy._private.style;
+
+ if( isEles ){
+ var pos = ele._private.position;
+ var startPosition = {
+ x: pos.x,
+ y: pos.y
+ };
+ var startStyle = style.getValueStyle( ele );
+ }
+
+ if( isCore ){
+ var pan = cy._private.pan;
+ var startPan = {
+ x: pan.x,
+ y: pan.y
+ };
+
+ var startZoom = cy._private.zoom;
+ }
+
+ ani.started = true;
+ ani.startTime = Date.now();
+ ani.startPosition = startPosition;
+ ani.startStyle = startStyle;
+ ani.startPan = startPan;
+ ani.startZoom = startZoom;
+ }
+
+ function step( self, animation, now, isCore ){
+ var style = cy._private.style;
+ var properties = animation.properties;
+ var params = animation.params;
+ var startTime = animation.startTime;
+ var percent;
+ var isEles = !isCore;
+
+ if( animation.duration === 0 ){
+ percent = 1;
+ } else {
+ percent = Math.min(1, (now - startTime)/animation.duration);
+ }
+
+ if( percent < 0 ){
+ percent = 0;
+ } else if( percent > 1 ){
+ percent = 1;
+ }
+
+ if( properties.delay == null ){ // then update
+
+ var startPos = animation.startPosition;
+ var endPos = properties.position;
+ var pos = self._private.position;
+ if( endPos && isEles ){
+ if( valid( startPos.x, endPos.x ) ){
+ pos.x = ease( startPos.x, endPos.x, percent );
+ }
+
+ if( valid( startPos.y, endPos.y ) ){
+ pos.y = ease( startPos.y, endPos.y, percent );
+ }
+ }
+
+ var startPan = animation.startPan;
+ var endPan = properties.pan;
+ var pan = self._private.pan;
+ var animatingPan = endPan != null && isCore;
+ if( animatingPan ){
+ if( valid( startPan.x, endPan.x ) ){
+ pan.x = ease( startPan.x, endPan.x, percent );
+ }
+
+ if( valid( startPan.y, endPan.y ) ){
+ pan.y = ease( startPan.y, endPan.y, percent );
+ }
+
+ self.trigger('pan');
+ }
+
+ var startZoom = animation.startZoom;
+ var endZoom = properties.zoom;
+ var animatingZoom = endZoom != null && isCore;
+ if( animatingZoom ){
+ if( valid( startZoom, endZoom ) ){
+ self._private.zoom = ease( startZoom, endZoom, percent );
+ }
+
+ self.trigger('zoom');
+ }
+
+ if( animatingPan || animatingZoom ){
+ self.trigger('viewport');
+ }
+
+ if( properties.css && isEles ){
+ var props = properties.css;
+
+ for( var i = 0; i < props.length; i++ ){
+ var name = props[i].name;
+ var prop = props[i];
+ var end = prop;
+
+ var start = animation.startStyle[ name ];
+ var easedVal = ease( start, end, percent );
+
+ style.overrideBypass( self, name, easedVal );
+ } // for props
+ } // if
+
+ }
+
+ if( $$.is.fn(params.step) ){
+ params.step.apply( self, [ now ] );
+ }
+
+ if( percent >= 1 ){
+ animation.done = true;
+ }
+
+ return percent;
+ }
+
+ function valid(start, end){
+ if( start == null || end == null ){
+ return false;
+ }
+
+ if( $$.is.number(start) && $$.is.number(end) ){
+ return true;
+ } else if( (start) && (end) ){
+ return true;
+ }
+
+ return false;
+ }
+
+ function ease(startProp, endProp, percent){
+ if( percent < 0 ){
+ percent = 0;
+ } else if( percent > 1 ){
+ percent = 1;
+ }
+
+ var start, end;
+
+ if( startProp.pxValue != null || startProp.value != null ){
+ start = startProp.pxValue != null ? startProp.pxValue : startProp.value;
+ } else {
+ start = startProp;
+ }
+
+ if( endProp.pxValue != null || endProp.value != null ){
+ end = endProp.pxValue != null ? endProp.pxValue : endProp.value;
+ } else {
+ end = endProp;
+ }
+
+ if( $$.is.number(start) && $$.is.number(end) ){
+ return start + (end - start) * percent;
+
+ } else if( $$.is.number(start[0]) && $$.is.number(end[0]) ){ // then assume a colour
+ var c1 = start;
+ var c2 = end;
+
+ var ch = function(ch1, ch2){
+ var diff = ch2 - ch1;
+ var min = ch1;
+ return Math.round( percent * diff + min );
+ };
+
+ var r = ch( c1[0], c2[0] );
+ var g = ch( c1[1], c2[1] );
+ var b = ch( c1[2], c2[2] );
+
+ return [r, g, b];
+ }
+
+ return undefined;
+ }
+
+ }
+
+ });
+
+})( cytoscape, typeof window === 'undefined' ? null : window );
+
+
+
+
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+ data: $$.define.data({
+ field: 'data',
+ bindingEvent: 'data',
+ allowBinding: true,
+ allowSetting: true,
+ settingEvent: 'data',
+ settingTriggersEvent: true,
+ triggerFnName: 'trigger',
+ allowGetting: true
+ }),
+
+ removeData: $$.define.removeData({
+ field: 'data',
+ event: 'data',
+ triggerFnName: 'trigger',
+ triggerEvent: true
+ }),
+
+ scratch: $$.define.data({
+ field: 'scratch',
+ allowBinding: false,
+ allowSetting: true,
+ settingTriggersEvent: false,
+ allowGetting: true
+ }),
+
+ removeScratch: $$.define.removeData({
+ field: 'scratch',
+ triggerEvent: false
+ })
+ });
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+ on: $$.define.on(), // .on( events [, selector] [, data], handler)
+ one: $$.define.on({ unbindSelfOnTrigger: true }),
+ once: $$.define.on({ unbindAllBindersOnTrigger: true }),
+ off: $$.define.off(), // .off( events [, selector] [, handler] )
+ trigger: $$.define.trigger() // .trigger( events [, extraParams] )
+ });
+
+ // aliases for those folks who like old stuff:
+ $$.corefn.bind = $$.corefn.on;
+ $$.corefn.unbind = $$.corefn.off;
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+
+ png: function( options ){
+ var renderer = this._private.renderer;
+ options = options || {};
+
+ return renderer.png( options );
+ }
+
+ });
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+
+ layout: function( params ){
+ var layout = this._private.prevLayout = ( params == null ? this._private.prevLayout : this.initLayout( params ) );
+
+ layout.run();
+
+ return this; // chaining
+ },
+
+ makeLayout: function( params ){
+ return this.initLayout( params );
+ },
+
+ initLayout: function( options ){
+ if( options == null ){
+ $$.util.error('Layout options must be specified to make a layout');
+ return;
+ }
+
+ if( options.name == null ){
+ $$.util.error('A `name` must be specified to make a layout');
+ return;
+ }
+
+ var name = options.name;
+ var LayoutProto = $$.extension('layout', name);
+
+ if( LayoutProto == null ){
+ $$.util.error('Can not apply layout: No such layout `' + name + '` found; did you include its JS file?');
+ return;
+ }
+
+ options.eles = options.eles != null ? options.eles : this.$();
+
+ if( $$.is.string( options.eles ) ){
+ options.eles = this.$( options.eles );
+ }
+
+ var layout = new LayoutProto( $$.util.extend({}, options, {
+ cy: this
+ }) );
+
+ // make sure layout has _private for use w/ std apis like .on()
+ if( !$$.is.plainObject(layout._private) ){
+ layout._private = {};
+ }
+
+ layout._private.cy = this;
+ layout._private.listeners = [];
+
+ return layout;
+ }
+
+ });
+
+})( cytoscape );
+(function($$){ 'use strict';
+
+ $$.fn.core({
+ notify: function( params ){
+ if( this._private.batchingNotify ){
+ var bEles = this._private.batchNotifyEles;
+ var bTypes = this._private.batchNotifyTypes;
+
+ if( params.collection ){ for( var i = 0; i < params.collection.length; i++ ){
+ var ele = params.collection[i];
+
+ if( !bEles.ids[ ele._private.id ] ){
+ bEles.push( ele );
+ }
+ } }
+
+ if( !bTypes.ids[ params.type ] ){
+ bTypes.push( params.type );
+ }
+
+ return; // notifications are disabled during batching
+ }
+
+ if( !this._private.notificationsEnabled ){ return; } // exit on disabled
+
+ var renderer = this.renderer();
+
+ renderer.notify(params);
+ },
+
+ notifications: function( bool ){
+ var p = this._private;
+
+ if( bool === undefined ){
+ return p.notificationsEnabled;
+ } else {
+ p.notificationsEnabled = bool ? true : false;
+ }
+ },
+
+ noNotifications: function( callback ){
+ this.notifications(false);
+ callback();
+ this.notifications(true);
+ },
+
+ startBatch: function(){
+ var _p = this._private;
+
+ _p.batchingStyle = _p.batchingNotify = true;
+ _p.batchStyleEles = [];
+ _p.batchNotifyEles = [];
+ _p.batchNotifyTypes = [];
+
+ _p.batchStyleEles.ids = {};
+ _p.batchNotifyEles.ids = {};
+ _p.batchNotifyTypes.ids = {};
+
+ return this;
+ },
+
+ endBatch: function(){
+ var _p = this._private;
+
+ // update style for dirty eles
+ _p.batchingStyle = false;
+ new $$.Collection(this, _p.batchStyleEles).updateStyle();
+
+ // notify the renderer of queued eles and event types
+ _p.batchingNotify = false;
+ this.notify({
+ type: _p.batchNotifyTypes,
+ collection: _p.batchNotifyEles
+ });
+
+ return this;
+ },
+
+ batch: function( callback ){
+ this.startBatch();
+ callback();
+ this.endBatch();
+
+ return this;
+ },
+
+ // for backwards compatibility
+ batchData: function( map ){
+ var cy = this;
+
+ return this.batch(function(){
+ for( var id in map ){
+ var data = map[id];
+ var ele = cy.getElementById( id );
+
+ ele.data( data );
+ }
+ });
+ }
+ });
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+
+ renderTo: function( context, zoom, pan, pxRatio ){
+ var r = this._private.renderer;
+
+ r.renderTo( context, zoom, pan, pxRatio );
+ return this;
+ },
+
+ renderer: function(){
+ return this._private.renderer;
+ },
+
+ forceRender: function(){
+ this.notify({
+ type: 'draw'
+ });
+
+ return this;
+ },
+
+ resize: function(){
+ this.notify({
+ type: 'resize'
+ });
+
+ this.trigger('resize');
+
+ return this;
+ },
+
+ initRenderer: function( options ){
+ var cy = this;
+
+ var RendererProto = $$.extension('renderer', options.name);
+ if( RendererProto == null ){
+ $$.util.error('Can not initialise: No such renderer `%s` found; did you include its JS file?', options.name);
+ return;
+ }
+
+ this._private.renderer = new RendererProto(
+ $$.util.extend({}, options, {
+ cy: cy,
+ style: cy._private.style
+ })
+ );
+
+ }
+
+ });
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+
+ // get a collection
+ // - empty collection on no args
+ // - collection of elements in the graph on selector arg
+ // - guarantee a returned collection when elements or collection specified
+ collection: function( eles ){
+
+ if( $$.is.string( eles ) ){
+ return this.$( eles );
+
+ } else if( $$.is.elementOrCollection( eles ) ){
+ return eles.collection();
+
+ } else if( $$.is.array( eles ) ){
+ return new $$.Collection( this, eles );
+ }
+
+ return new $$.Collection( this );
+ },
+
+ nodes: function( selector ){
+ var nodes = this.$(function(){
+ return this.isNode();
+ });
+
+ if( selector ){
+ return nodes.filter( selector );
+ }
+
+ return nodes;
+ },
+
+ edges: function( selector ){
+ var edges = this.$(function(){
+ return this.isEdge();
+ });
+
+ if( selector ){
+ return edges.filter( selector );
+ }
+
+ return edges;
+ },
+
+ // search the graph like jQuery
+ $: function( selector ){
+ var eles = new $$.Collection( this, this._private.elements );
+
+ if( selector ){
+ return eles.filter( selector );
+ }
+
+ return eles;
+ }
+
+ });
+
+ // aliases
+ $$.corefn.elements = $$.corefn.filter = $$.corefn.$;
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+
+ style: function( newStyle ){
+ if( newStyle ){
+ var s = this.setStyle( newStyle );
+
+ s.update();
+ }
+
+ return this._private.style;
+ },
+
+ setStyle: function( style ){
+ var _p = this._private;
+
+ if( $$.is.stylesheet(style) ){
+ _p.style = style.generateStyle(this);
+
+ } else if( $$.is.array(style) ) {
+ _p.style = $$.style.fromJson(this, style);
+
+ } else if( $$.is.string(style) ){
+ _p.style = $$.style.fromString(this, style);
+
+ } else {
+ _p.style = new $$.Style( this );
+ }
+
+ return _p.style;
+ }
+ });
+
+})( cytoscape );
+
+
+;(function($$){ 'use strict';
+
+ $$.fn.core({
+
+ autolock: function(bool){
+ if( bool !== undefined ){
+ this._private.autolock = bool ? true : false;
+ } else {
+ return this._private.autolock;
+ }
+
+ return this; // chaining
+ },
+
+ autoungrabify: function(bool){
+ if( bool !== undefined ){
+ this._private.autoungrabify = bool ? true : false;
+ } else {
+ return this._private.autoungrabify;
+ }
+
+ return this; // chaining
+ },
+
+ autounselectify: function(bool){
+ if( bool !== undefined ){
+ this._private.autounselectify = bool ? true : false;
+ } else {
+ return this._private.autounselectify;
+ }
+
+ return this; // chaining
+ },
+
+ panningEnabled: function( bool ){
+ if( bool !== undefined ){
+ this._private.panningEnabled = bool ? true : false;
+ } else {
+ return this._private.panningEnabled;
+ }
+
+ return this; // chaining
+ },
+
+ userPanningEnabled: function( bool ){
+ if( bool !== undefined ){
+ this._private.userPanningEnabled = bool ? true : false;
+ } else {
+ return this._private.userPanningEnabled;
+ }
+
+ return this; // chaining
+ },
+
+ zoomingEnabled: function( bool ){
+ if( bool !== undefined ){
+ this._private.zoomingEnabled = bool ? true : false;
+ } else {
+ return this._private.zoomingEnabled;
+ }
+
+ return this; // chaining
+ },
+
+ userZoomingEnabled: function( bool ){
+ if( bool !== undefined ){
+ this._private.userZoomingEnabled = bool ? true : false;
+ } else {
+ return this._private.userZoomingEnabled;
+ }
+
+ return this; // chaining
+ },
+
+ boxSelectionEnabled: function( bool ){
+ if( bool !== undefined ){
+ this._private.boxSelectionEnabled = bool ? true : false;
+ } else {
+ return this._private.boxSelectionEnabled;
+ }
+
+ return this; // chaining
+ },
+
+ pan: function(){
+ var args = arguments;
+ var pan = this._private.pan;
+ var dim, val, dims, x, y;
+
+ switch( args.length ){
+ case 0: // .pan()
+ return pan;
+
+ case 1:
+
+ if( $$.is.string( args[0] ) ){ // .pan('x')
+ dim = args[0];
+ return pan[ dim ];
+
+ } else if( $$.is.plainObject( args[0] ) ) { // .pan({ x: 0, y: 100 })
+ if( !this._private.panningEnabled ){
+ return this;
+ }
+
+ dims = args[0];
+ x = dims.x;
+ y = dims.y;
+
+ if( $$.is.number(x) ){
+ pan.x = x;
+ }
+
+ if( $$.is.number(y) ){
+ pan.y = y;
+ }
+
+ this.trigger('pan viewport');
+ }
+ break;
+
+ case 2: // .pan('x', 100)
+ if( !this._private.panningEnabled ){
+ return this;
+ }
+
+ dim = args[0];
+ val = args[1];
+
+ if( (dim === 'x' || dim === 'y') && $$.is.number(val) ){
+ pan[dim] = val;
+ }
+
+ this.trigger('pan viewport');
+ break;
+
+ default:
+ break; // invalid
+ }
+
+ this.notify({ // notify the renderer that the viewport changed
+ type: 'viewport'
+ });
+
+ return this; // chaining
+ },
+
+ panBy: function(params){
+ var args = arguments;
+ var pan = this._private.pan;
+ var dim, val, dims, x, y;
+
+ if( !this._private.panningEnabled ){
+ return this;
+ }
+
+ switch( args.length ){
+ case 1:
+
+ if( $$.is.plainObject( args[0] ) ) { // .panBy({ x: 0, y: 100 })
+ dims = args[0];
+ x = dims.x;
+ y = dims.y;
+
+ if( $$.is.number(x) ){
+ pan.x += x;
+ }
+
+ if( $$.is.number(y) ){
+ pan.y += y;
+ }
+
+ this.trigger('pan viewport');
+ }
+ break;
+
+ case 2: // .panBy('x', 100)
+ dim = args[0];
+ val = args[1];
+
+ if( (dim === 'x' || dim === 'y') && $$.is.number(val) ){
+ pan[dim] += val;
+ }
+
+ this.trigger('pan viewport');
+ break;
+
+ default:
+ break; // invalid
+ }
+
+ this.notify({ // notify the renderer that the viewport changed
+ type: 'viewport'
+ });
+
+ return this; // chaining
+ },
+
+ fit: function( elements, padding ){
+ var viewportState = this.getFitViewport( elements, padding );
+
+ if( viewportState ){
+ var _p = this._private;
+ _p.zoom = viewportState.zoom;
+ _p.pan = viewportState.pan;
+
+ this.trigger('pan zoom viewport');
+
+ this.notify({ // notify the renderer that the viewport changed
+ type: 'viewport'
+ });
+ }
+
+ return this; // chaining
+ },
+
+ getFitViewport: function( elements, padding ){
+ if( $$.is.number(elements) && padding === undefined ){ // elements is optional
+ padding = elements;
+ elements = undefined;
+ }
+
+ if( !this._private.panningEnabled || !this._private.zoomingEnabled ){
+ return;
+ }
+
+ var bb;
+
+ if( $$.is.string(elements) ){
+ var sel = elements;
+ elements = this.$( sel );
+
+ } else if( $$.is.boundingBox(elements) ){ // assume bb
+ var bbe = elements;
+ bb = {
+ x1: bbe.x1,
+ y1: bbe.y1,
+ x2: bbe.x2,
+ y2: bbe.y2
+ };
+
+ bb.w = bb.x2 - bb.x1;
+ bb.h = bb.y2 - bb.y1;
+
+ } else if( !$$.is.elementOrCollection(elements) ){
+ elements = this.elements();
+ }
+
+ bb = bb || elements.boundingBox();
+
+ var w = this.width();
+ var h = this.height();
+ var zoom;
+ padding = $$.is.number(padding) ? padding : 0;
+
+ if( !isNaN(w) && !isNaN(h) && w > 0 && h > 0 && !isNaN(bb.w) && !isNaN(bb.h) && bb.w > 0 && bb.h > 0 ){
+ zoom = Math.min( (w - 2*padding)/bb.w, (h - 2*padding)/bb.h );
+
+ // crop zoom
+ zoom = zoom > this._private.maxZoom ? this._private.maxZoom : zoom;
+ zoom = zoom < this._private.minZoom ? this._private.minZoom : zoom;
+
+ var pan = { // now pan to middle
+ x: (w - zoom*( bb.x1 + bb.x2 ))/2,
+ y: (h - zoom*( bb.y1 + bb.y2 ))/2
+ };
+
+ return {
+ zoom: zoom,
+ pan: pan
+ };
+ }
+
+ return;
+ },
+
+ minZoom: function( zoom ){
+ if( zoom === undefined ){
+ return this._private.minZoom;
+ } else if( $$.is.number(zoom) ){
+ this._private.minZoom = zoom;
+ }
+
+ return this;
+ },
+
+ maxZoom: function( zoom ){
+ if( zoom === undefined ){
+ return this._private.maxZoom;
+ } else if( $$.is.number(zoom) ){
+ this._private.maxZoom = zoom;
+ }
+
+ return this;
+ },
+
+ zoom: function( params ){
+ var pos; // in rendered px
+ var zoom;
+
+ if( params === undefined ){ // then get the zoom
+ return this._private.zoom;
+
+ } else if( $$.is.number(params) ){ // then set the zoom
+ zoom = params;
+
+ } else if( $$.is.plainObject(params) ){ // then zoom about a point
+ zoom = params.level;
+
+ if( params.position ){
+ var p = params.position;
+ var pan = this._private.pan;
+ var z = this._private.zoom;
+
+ pos = { // convert to rendered px
+ x: p.x * z + pan.x,
+ y: p.y * z + pan.y
+ };
+ } else if( params.renderedPosition ){
+ pos = params.renderedPosition;
+ }
+
+ if( pos && !this._private.panningEnabled ){
+ return this; // panning disabled
+ }
+ }
+
+ if( !this._private.zoomingEnabled ){
+ return this; // zooming disabled
+ }
+
+ if( !$$.is.number(zoom) || ( pos && (!$$.is.number(pos.x) || !$$.is.number(pos.y)) ) ){
+ return this; // can't zoom with invalid params
+ }
+
+ // crop zoom
+ zoom = zoom > this._private.maxZoom ? this._private.maxZoom : zoom;
+ zoom = zoom < this._private.minZoom ? this._private.minZoom : zoom;
+
+ if( pos ){ // set zoom about position
+ var pan1 = this._private.pan;
+ var zoom1 = this._private.zoom;
+ var zoom2 = zoom;
+
+ var pan2 = {
+ x: -zoom2/zoom1 * (pos.x - pan1.x) + pos.x,
+ y: -zoom2/zoom1 * (pos.y - pan1.y) + pos.y
+ };
+
+ this._private.zoom = zoom;
+ this._private.pan = pan2;
+
+ var posChanged = pan1.x !== pan2.x || pan1.y !== pan2.y;
+ this.trigger(' zoom ' + (posChanged ? ' pan ' : '') + ' viewport ' );
+
+ } else { // just set the zoom
+ this._private.zoom = zoom;
+ this.trigger('zoom viewport');
+ }
+
+ this.notify({ // notify the renderer that the viewport changed
+ type: 'viewport'
+ });
+
+ return this; // chaining
+ },
+
+ viewport: function( opts ){
+ var _p = this._private;
+ var zoomDefd = true;
+ var panDefd = true;
+ var events = []; // to trigger
+ var zoomFailed = false;
+ var panFailed = false;
+
+ if( !opts ){ return this; }
+ if( !$$.is.number(opts.zoom) ){ zoomDefd = false; }
+ if( !$$.is.plainObject(opts.pan) ){ panDefd = false; }
+ if( !zoomDefd && !panDefd ){ return this; }
+
+ if( zoomDefd ){
+ var z = opts.zoom;
+
+ if( z < _p.minZoom || z > _p.maxZoom || !_p.zoomingEnabled ){
+ zoomFailed = true;
+
+ } else {
+ _p.zoom = z;
+
+ events.push('zoom');
+ }
+ }
+
+ if( panDefd && (!zoomFailed || !opts.cancelOnFailedZoom) && _p.panningEnabled ){
+ var p = opts.pan;
+
+ if( $$.is.number(p.x) ){
+ _p.pan.x = p.x;
+ panFailed = false;
+ }
+
+ if( $$.is.number(p.y) ){
+ _p.pan.y = p.y;
+ panFailed = false;
+ }
+
+ if( !panFailed ){
+ events.push('pan');
+ }
+ }
+
+ if( events.length > 0 ){
+ events.push('viewport');
+ this.trigger( events.join(' ') );
+
+ this.notify({
+ type: 'viewport'
+ });
+ }
+
+ return this; // chaining
+ },
+
+ center: function( elements ){
+ var pan = this.getCenterPan( elements );
+
+ if( pan ){
+ this._private.pan = pan;
+
+ this.trigger('pan viewport');
+
+ this.notify({ // notify the renderer that the viewport changed
+ type: 'viewport'
+ });
+ }
+
+ return this; // chaining
+ },
+
+ getCenterPan: function( elements ){
+ if( !this._private.panningEnabled ){
+ return;
+ }
+
+ if( $$.is.string(elements) ){
+ var selector = elements;
+ elements = this.elements( selector );
+ } else if( !$$.is.elementOrCollection(elements) ){
+ elements = this.elements();
+ }
+
+ var bb = elements.boundingBox();
+ var w = this.width();
+ var h = this.height();
+ var zoom = this._private.zoom;
+
+ var pan = { // middle
+ x: (w - zoom*( bb.x1 + bb.x2 ))/2,
+ y: (h - zoom*( bb.y1 + bb.y2 ))/2
+ };
+
+ return pan;
+ },
+
+ reset: function(){
+ if( !this._private.panningEnabled || !this._private.zoomingEnabled ){
+ return this;
+ }
+
+ this.viewport({
+ pan: { x: 0, y: 0 },
+ zoom: 1
+ });
+
+ return this; // chaining
+ },
+
+ width: function(){
+ var container = this._private.container;
+
+ if( container ){
+ return container.clientWidth;
+ }
+
+ return 1; // fallback if no container (not 0 b/c can be used for dividing etc)
+ },
+
+ height: function(){
+ var container = this._private.container;
+
+ if( container ){
+ return container.clientHeight;
+ }
+
+ return 1; // fallback if no container (not 0 b/c can be used for dividing etc)
+ },
+
+ extent: function(){
+ var pan = this._private.pan;
+ var zoom = this._private.zoom;
+ var rb = this.renderedExtent();
+
+ var b = {
+ x1: ( rb.x1 - pan.x )/zoom,
+ x2: ( rb.x2 - pan.x )/zoom,
+ y1: ( rb.y1 - pan.y )/zoom,
+ y2: ( rb.y2 - pan.y )/zoom,
+ };
+
+ b.w = b.x2 - b.x1;
+ b.h = b.y2 - b.y1;
+
+ return b;
+ },
+
+ renderedExtent: function(){
+ var width = this.width();
+ var height = this.height();
+
+ return {
+ x1: 0,
+ y1: 0,
+ x2: width,
+ y2: height,
+ w: width,
+ h: height
+ };
+ }
+ });
+
+ // aliases
+ $$.corefn.centre = $$.corefn.center;
+
+ // backwards compatibility
+ $$.corefn.autolockNodes = $$.corefn.autolock;
+ $$.corefn.autoungrabifyNodes = $$.corefn.autoungrabifyNodes;
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // Use this interface to define functions for collections/elements.
+ // This interface is good, because it forces you to think in terms
+ // of the collections case (more than 1 element), so we don't need
+ // notification blocking nonsense everywhere.
+ //
+ // Other collection-*.js files depend on this being defined first.
+ // It's a trade off: It simplifies the code for Collection and
+ // Element integration so much that it's worth it to create the
+ // JS dependency.
+ //
+ // Having this integration guarantees that we can call any
+ // collection function on an element and vice versa.
+
+ // e.g. $$.fn.collection({ someFunc: function(){ /* ... */ } })
+ $$.fn.collection = $$.fn.eles = function( fnMap, options ){
+ for( var name in fnMap ){
+ var fn = fnMap[name];
+
+ $$.Collection.prototype[ name ] = fn;
+ }
+ };
+
+ // factory for generating edge ids when no id is specified for a new element
+ var idFactory = {
+ prefix: {
+ nodes: 'n',
+ edges: 'e'
+ },
+ id: {
+ nodes: 0,
+ edges: 0
+ },
+ generate: function(cy, element, tryThisId){
+ var json = $$.is.element( element ) ? element._private : element;
+ var group = json.group;
+ var id = tryThisId != null ? tryThisId : this.prefix[group] + this.id[group];
+
+ if( cy.getElementById(id).empty() ){
+ this.id[group]++; // we've used the current id, so move it up
+ } else { // otherwise keep trying successive unused ids
+ while( !cy.getElementById(id).empty() ){
+ id = this.prefix[group] + ( ++this.id[group] );
+ }
+ }
+
+ return id;
+ }
+ };
+
+ // Element
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ // represents a node or an edge
+ $$.Element = function(cy, params, restore){
+ if( !(this instanceof $$.Element) ){
+ return new $$.Element(cy, params, restore);
+ }
+
+ var self = this;
+ restore = (restore === undefined || restore ? true : false);
+
+ if( cy === undefined || params === undefined || !$$.is.core(cy) ){
+ $$.util.error('An element must have a core reference and parameters set');
+ return;
+ }
+
+ // validate group
+ if( params.group !== 'nodes' && params.group !== 'edges' ){
+ $$.util.error('An element must be of type `nodes` or `edges`; you specified `' + params.group + '`');
+ return;
+ }
+
+ // make the element array-like, just like a collection
+ this.length = 1;
+ this[0] = this;
+
+ // NOTE: when something is added here, add also to ele.json()
+ this._private = {
+ cy: cy,
+ single: true, // indicates this is an element
+ data: params.data || {}, // data object
+ layoutData: {}, // place for layouts to put calculated stats etc for mappers
+ position: params.position || {}, // (x, y) position pair
+ autoWidth: undefined, // width and height of nodes calculated by the renderer when set to special 'auto' value
+ autoHeight: undefined,
+ listeners: [], // array of bound listeners
+ group: params.group, // string; 'nodes' or 'edges'
+ style: {}, // properties as set by the style
+ rstyle: {}, // properties for style sent from the renderer to the core
+ styleCxts: [], // applied style contexts from the styler
+ removed: true, // whether it's inside the vis; true if removed (set true here since we call restore)
+ selected: params.selected ? true : false, // whether it's selected
+ selectable: params.selectable === undefined ? true : ( params.selectable ? true : false ), // whether it's selectable
+ locked: params.locked ? true : false, // whether the element is locked (cannot be moved)
+ grabbed: false, // whether the element is grabbed by the mouse; renderer sets this privately
+ grabbable: params.grabbable === undefined ? true : ( params.grabbable ? true : false ), // whether the element can be grabbed
+ active: false, // whether the element is active from user interaction
+ classes: {}, // map ( className => true )
+ animation: { // object for currently-running animations
+ current: [],
+ queue: []
+ },
+ rscratch: {}, // object in which the renderer can store information
+ scratch: {}, // scratch objects
+ edges: [], // array of connected edges
+ children: [] // array of children
+ };
+
+ // renderedPosition overrides if specified
+ if( params.renderedPosition ){
+ var rpos = params.renderedPosition;
+ var pan = cy.pan();
+ var zoom = cy.zoom();
+
+ this._private.position = {
+ x: (rpos.x - pan.x)/zoom,
+ y: (rpos.y - pan.y)/zoom
+ };
+ }
+
+ if( $$.is.string(params.classes) ){
+ var classes = params.classes.split(/\s+/);
+ for( var i = 0, l = classes.length; i < l; i++ ){
+ var cls = classes[i];
+ if( !cls || cls === '' ){ continue; }
+
+ self._private.classes[cls] = true;
+ }
+ }
+
+ if( params.css ){
+ cy.style().applyBypass( this, params.css );
+ }
+
+ if( restore === undefined || restore ){
+ this.restore();
+ }
+
+ };
+
+
+ // Collection
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ // represents a set of nodes, edges, or both together
+ $$.Collection = function(cy, elements, options){
+ if( !(this instanceof $$.Collection) ){
+ return new $$.Collection(cy, elements);
+ }
+
+ if( cy === undefined || !$$.is.core(cy) ){
+ $$.util.error('A collection must have a reference to the core');
+ return;
+ }
+
+ var ids = {};
+ var indexes = {};
+ var createdElements = false;
+
+ if( !elements ){
+ elements = [];
+ } else if( elements.length > 0 && $$.is.plainObject( elements[0] ) && !$$.is.element( elements[0] ) ){
+ createdElements = true;
+
+ // make elements from json and restore all at once later
+ var eles = [];
+ var elesIds = {};
+
+ for( var i = 0, l = elements.length; i < l; i++ ){
+ var json = elements[i];
+
+ if( json.data == null ){
+ json.data = {};
+ }
+
+ var data = json.data;
+
+ // make sure newly created elements have valid ids
+ if( data.id == null ){
+ data.id = idFactory.generate( cy, json );
+ } else if( cy.getElementById( data.id ).length !== 0 || elesIds[ data.id ] ){
+ continue; // can't create element if prior id already exists
+ }
+
+ var ele = new $$.Element( cy, json, false );
+ eles.push( ele );
+ elesIds[ data.id ] = true;
+ }
+
+ elements = eles;
+ }
+
+ this.length = 0;
+
+ for( var i = 0, l = elements.length; i < l; i++ ){
+ var element = elements[i];
+ if( !element ){ continue; }
+
+ var id = element._private.data.id;
+
+ if( !options || (options.unique && !ids[ id ] ) ){
+ ids[ id ] = element;
+ indexes[ id ] = this.length;
+
+ this[ this.length ] = element;
+ this.length++;
+ }
+ }
+
+ this._private = {
+ cy: cy,
+ ids: ids,
+ indexes: indexes
+ };
+
+ // restore the elements if we created them from json
+ if( createdElements ){
+ this.restore();
+ }
+ };
+
+
+ // Functions
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ // keep the prototypes in sync (an element has the same functions as a collection)
+ // and use $$.elefn and $$.elesfn as shorthands to the prototypes
+ $$.elefn = $$.elesfn = $$.Element.prototype = $$.Collection.prototype;
+
+ $$.elesfn.cy = function(){
+ return this._private.cy;
+ };
+
+ $$.elesfn.element = function(){
+ return this[0];
+ };
+
+ $$.elesfn.collection = function(){
+ if( $$.is.collection(this) ){
+ return this;
+ } else { // an element
+ return new $$.Collection( this._private.cy, [this] );
+ }
+ };
+
+ $$.elesfn.unique = function(){
+ return new $$.Collection( this._private.cy, this, { unique: true } );
+ };
+
+ $$.elesfn.getElementById = function( id ){
+ var cy = this._private.cy;
+ var ele = this._private.ids[ id ];
+
+ return ele ? ele : $$.Collection(cy); // get ele or empty collection
+ };
+
+ $$.elesfn.json = function(){
+ var ele = this.element();
+ if( ele == null ){ return undefined; }
+
+ var p = ele._private;
+
+ var json = $$.util.copy({
+ data: p.data,
+ position: p.position,
+ group: p.group,
+ bypass: p.bypass,
+ removed: p.removed,
+ selected: p.selected,
+ selectable: p.selectable,
+ locked: p.locked,
+ grabbed: p.grabbed,
+ grabbable: p.grabbable,
+ classes: ''
+ });
+
+ var classes = [];
+ for( var cls in p.classes ){
+ if( p.classes[cls] ){
+ classes.push(cls);
+ }
+ }
+
+ for( var i = 0; i < classes.length; i++ ){
+ var cls = classes[i];
+ json.classes += cls + ( i < classes.length - 1 ? ' ' : '' );
+ }
+
+ return json;
+ };
+
+ $$.elesfn.jsons = function(){
+ var jsons = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var json = ele.json();
+
+ jsons.push( json );
+ }
+
+ return jsons;
+ };
+
+ $$.elesfn.clone = function(){
+ var cy = this.cy();
+ var elesArr = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var json = ele.json();
+ var clone = new $$.Element(cy, json, false); // NB no restore
+
+ elesArr.push( clone );
+ }
+
+ return new $$.Collection( cy, elesArr );
+ };
+
+ $$.elesfn.restore = function( notifyRenderer ){
+ var self = this;
+ var restored = [];
+ var cy = self.cy();
+
+ if( notifyRenderer === undefined ){
+ notifyRenderer = true;
+ }
+
+ // create arrays of nodes and edges, since we need to
+ // restore the nodes first
+ var elements = [];
+ var nodes = [], edges = [];
+ var numNodes = 0;
+ var numEdges = 0;
+ for( var i = 0, l = self.length; i < l; i++ ){
+ var ele = self[i];
+
+ // keep nodes first in the array and edges after
+ if( ele.isNode() ){ // put to front of array if node
+ nodes.push( ele );
+ numNodes++;
+ } else { // put to end of array if edge
+ edges.push( ele );
+ numEdges++;
+ }
+ }
+
+ elements = nodes.concat( edges );
+
+ // now, restore each element
+ for( var i = 0, l = elements.length; i < l; i++ ){
+ var ele = elements[i];
+
+ if( !ele.removed() ){
+ // don't need to do anything
+ continue;
+ }
+
+ var _private = ele._private;
+ var data = _private.data;
+
+ // set id and validate
+ if( data.id === undefined ){
+ data.id = idFactory.generate( cy, ele );
+ } else if( $$.is.emptyString(data.id) || !$$.is.string(data.id) ){
+ $$.util.error('Can not create element with invalid string ID `' + data.id + '`');
+
+ // can't create element if it has empty string as id or non-string id
+ continue;
+ } else if( cy.getElementById( data.id ).length !== 0 ){
+ $$.util.error('Can not create second element with ID `' + data.id + '`');
+
+ // can't create element if one already has that id
+ continue;
+ }
+
+ var id = data.id; // id is finalised, now let's keep a ref
+
+ if( ele.isEdge() ){ // extra checks for edges
+
+ var edge = ele;
+ var fields = ['source', 'target'];
+ var fieldsLength = fields.length;
+ var badSourceOrTarget = false;
+ for(var j = 0; j < fieldsLength; j++){
+
+ var field = fields[j];
+ var val = data[field];
+
+ if( val == null || val === '' ){
+ // can't create if source or target is not defined properly
+ $$.util.error('Can not create edge `' + id + '` with unspecified ' + field);
+ badSourceOrTarget = true;
+ } else if( cy.getElementById(val).empty() ){
+ // can't create edge if one of its nodes doesn't exist
+ $$.util.error('Can not create edge `' + id + '` with nonexistant ' + field + ' `' + val + '`');
+ badSourceOrTarget = true;
+ }
+ }
+
+ if( badSourceOrTarget ){ continue; } // can't create this
+
+ var src = cy.getElementById( data.source );
+ var tgt = cy.getElementById( data.target );
+
+ src._private.edges.push( edge );
+ tgt._private.edges.push( edge );
+
+ edge._private.source = src;
+ edge._private.target = tgt;
+
+ } // if is edge
+
+ // create mock ids map for element so it can be used like collections
+ _private.ids = {};
+ _private.ids[ id ] = ele;
+
+ _private.removed = false;
+ cy.addToPool( ele );
+
+ restored.push( ele );
+ } // for each element
+
+ // do compound node sanity checks
+ for( var i = 0; i < numNodes; i++ ){ // each node
+ var node = elements[i];
+ var data = node._private.data;
+
+ var parentId = node._private.data.parent;
+ var specifiedParent = parentId != null;
+
+ if( specifiedParent ){
+ var parent = cy.getElementById( parentId );
+
+ if( parent.empty() ){
+ // non-existant parent; just remove it
+ data.parent = undefined;
+ } else {
+ var selfAsParent = false;
+ var ancestor = parent;
+ while( !ancestor.empty() ){
+ if( node.same(ancestor) ){
+ // mark self as parent and remove from data
+ selfAsParent = true;
+ data.parent = undefined; // remove parent reference
+
+ // exit or we loop forever
+ break;
+ }
+
+ ancestor = ancestor.parent();
+ }
+
+ if( !selfAsParent ){
+ // connect with children
+ parent[0]._private.children.push( node );
+ node._private.parent = parent[0];
+
+ // let the core know we have a compound graph
+ cy._private.hasCompoundNodes = true;
+ }
+ } // else
+ } // if specified parent
+ } // for each node
+
+ restored = new $$.Collection( cy, restored );
+ if( restored.length > 0 ){
+
+ var toUpdateStyle = restored.add( restored.connectedNodes() ).add( restored.parent() );
+ toUpdateStyle.updateStyle( notifyRenderer );
+
+ if( notifyRenderer ){
+ restored.rtrigger('add');
+ } else {
+ restored.trigger('add');
+ }
+ }
+
+ return self; // chainability
+ };
+
+ $$.elesfn.removed = function(){
+ var ele = this[0];
+ return ele && ele._private.removed;
+ };
+
+ $$.elesfn.inside = function(){
+ var ele = this[0];
+ return ele && !ele._private.removed;
+ };
+
+ $$.elesfn.remove = function( notifyRenderer ){
+ var self = this;
+ var removed = [];
+ var elesToRemove = [];
+ var elesToRemoveIds = {};
+ var cy = self._private.cy;
+
+ if( notifyRenderer === undefined ){
+ notifyRenderer = true;
+ }
+
+ // add connected edges
+ function addConnectedEdges(node){
+ var edges = node._private.edges;
+ for( var i = 0; i < edges.length; i++ ){
+ add( edges[i] );
+ }
+ }
+
+
+ // add descendant nodes
+ function addChildren(node){
+ var children = node._private.children;
+
+ for( var i = 0; i < children.length; i++ ){
+ add( children[i] );
+ }
+ }
+
+ function add( ele ){
+ var alreadyAdded = elesToRemoveIds[ ele.id() ];
+ if( alreadyAdded ){
+ return;
+ } else {
+ elesToRemoveIds[ ele.id() ] = true;
+ }
+
+ if( ele.isNode() ){
+ elesToRemove.push( ele ); // nodes are removed last
+
+ addConnectedEdges( ele );
+ addChildren( ele );
+ } else {
+ elesToRemove.unshift( ele ); // edges are removed first
+ }
+ }
+
+ // make the list of elements to remove
+ // (may be removing more than specified due to connected edges etc)
+
+ for( var i = 0, l = self.length; i < l; i++ ){
+ var ele = self[i];
+
+ add( ele );
+ }
+
+ function removeEdgeRef(node, edge){
+ var connectedEdges = node._private.edges;
+ for( var j = 0; j < connectedEdges.length; j++ ){
+ var connectedEdge = connectedEdges[j];
+
+ if( edge === connectedEdge ){
+ connectedEdges.splice( j, 1 );
+ break;
+ }
+ }
+ }
+
+ function removeChildRef(parent, ele){
+ ele = ele[0];
+ parent = parent[0];
+ var children = parent._private.children;
+
+ for( var j = 0; j < children.length; j++ ){
+ if( children[j][0] === ele[0] ){
+ children.splice(j, 1);
+ break;
+ }
+ }
+ }
+
+ for( var i = 0; i < elesToRemove.length; i++ ){
+ var ele = elesToRemove[i];
+
+ // mark as removed
+ ele._private.removed = true;
+
+ // remove from core pool
+ cy.removeFromPool( ele );
+
+ // add to list of removed elements
+ removed.push( ele );
+
+ if( ele.isEdge() ){ // remove references to this edge in its connected nodes
+ var src = ele.source()[0];
+ var tgt = ele.target()[0];
+
+ removeEdgeRef( src, ele );
+ removeEdgeRef( tgt, ele );
+
+ } else { // remove reference to parent
+ var parent = ele.parent();
+
+ if( parent.length !== 0 ){
+ removeChildRef(parent, ele);
+ }
+ }
+ }
+
+ // check to see if we have a compound graph or not
+ var elesStillInside = cy._private.elements;
+ cy._private.hasCompoundNodes = false;
+ for( var i = 0; i < elesStillInside.length; i++ ){
+ var ele = elesStillInside[i];
+
+ if( ele.isParent() ){
+ cy._private.hasCompoundNodes = true;
+ break;
+ }
+ }
+
+ var removedElements = new $$.Collection( this.cy(), removed );
+ if( removedElements.size() > 0 ){
+ // must manually notify since trigger won't do this automatically once removed
+
+ if( notifyRenderer ){
+ this.cy().notify({
+ type: 'remove',
+ collection: removedElements
+ });
+ }
+
+ removedElements.trigger('remove');
+ }
+
+ // check for empty remaining parent nodes
+ var checkedParentId = {};
+ for( var i = 0; i < elesToRemove.length; i++ ){
+ var ele = elesToRemove[i];
+ var isNode = ele._private.group === 'nodes';
+ var parentId = ele._private.data.parent;
+
+ if( isNode && parentId !== undefined && !checkedParentId[ parentId ] ){
+ checkedParentId[ parentId ] = true;
+ var parent = cy.getElementById( parentId );
+
+ if( parent && parent.length !== 0 && !parent._private.removed && parent.children().length === 0 ){
+ parent.updateStyle();
+ }
+ }
+ }
+
+ return this;
+ };
+
+ $$.elesfn.move = function( struct ){
+ var cy = this._private.cy;
+
+ if( struct.source !== undefined || struct.target !== undefined ){
+ var srcId = struct.source;
+ var tgtId = struct.target;
+ var srcExists = cy.getElementById(srcId).length > 0;
+ var tgtExists = cy.getElementById(tgtId).length > 0;
+
+ if( srcExists || tgtExists ){
+ var jsons = this.jsons();
+
+ this.remove();
+
+ for( var i = 0; i < jsons.length; i++ ){
+ var json = jsons[i];
+
+ if( json.group === 'edges' ){
+ if( srcExists ){ json.data.source = srcId; }
+ if( tgtExists ){ json.data.target = tgtId; }
+ }
+ }
+
+ return cy.add( jsons );
+ }
+
+ } else if( struct.parent !== undefined ){ // move node to new parent
+ var parentId = struct.parent;
+ var parentExists = struct.parent === null || cy.getElementById( parentId ).length > 0;
+
+ if( parentExists ){
+ var jsons = this.jsons();
+
+ this.remove();
+
+ for( var i = 0; i < this.length; i++ ){
+ var json = jsons[i];
+
+ if( json.group === 'nodes' ){
+ json.data.parent = parentId === null ? undefined : parentId;
+ }
+ }
+ }
+
+ return cy.add( jsons );
+ }
+
+ return this; // if nothing done
+ };
+
+})( cytoscape );
+
+
+;(function($$){ 'use strict';
+
+ // search, spanning trees, etc
+ $$.fn.eles({
+
+ // std functional ele first callback style
+ stdBreadthFirstSearch: function( options ){
+ options = $$.util.extend( {}, options, {
+ std: true
+ } );
+
+ return this.breadthFirstSearch( options );
+ },
+
+ // do a breadth first search from the nodes in the collection
+ // from pseudocode on wikipedia
+ breadthFirstSearch: function( roots, fn, directed ){
+ var options;
+ var std;
+ var thisArg;
+ if( $$.is.plainObject(roots) && !$$.is.elementOrCollection(roots) ){
+ options = roots;
+ roots = options.roots;
+ fn = options.visit;
+ directed = options.directed;
+ std = options.std;
+ thisArg = options.thisArg;
+ }
+
+ directed = arguments.length === 2 && !$$.is.fn(fn) ? fn : directed;
+ fn = $$.is.fn(fn) ? fn : function(){};
+
+ var cy = this._private.cy;
+ var v = $$.is.string(roots) ? this.filter(roots) : roots;
+ var Q = [];
+ var connectedNodes = [];
+ var connectedBy = {};
+ var id2depth = {};
+ var V = {};
+ var j = 0;
+ var found;
+ var nodes = this.nodes();
+ var edges = this.edges();
+
+ // enqueue v
+ for( var i = 0; i < v.length; i++ ){
+ if( v[i].isNode() ){
+ Q.unshift( v[i] );
+ V[ v[i].id() ] = true;
+
+ connectedNodes.push( v[i] );
+ id2depth[ v[i].id() ] = 0;
+ }
+ }
+
+ while( Q.length !== 0 ){
+ var v = Q.shift();
+ var depth = id2depth[ v.id() ];
+ var prevEdge = connectedBy[ v.id() ];
+ var prevNode = prevEdge == null ? undefined : prevEdge.connectedNodes().not( v )[0];
+ var ret;
+
+ if( std ){
+ ret = fn.call(thisArg, v, prevEdge, prevNode, j++, depth);
+ } else {
+ ret = fn.call(v, j++, depth, v, prevEdge, prevNode);
+ }
+
+ if( ret === true ){
+ found = v;
+ break;
+ }
+
+ if( ret === false ){
+ break;
+ }
+
+ var vwEdges = v.connectedEdges(directed ? function(){ return this.data('source') === v.id(); } : undefined).intersect( edges );
+ for( var i = 0; i < vwEdges.length; i++ ){
+ var e = vwEdges[i];
+ var w = e.connectedNodes(function(){ return this.id() !== v.id(); }).intersect( nodes );
+
+ if( w.length !== 0 && !V[ w.id() ] ){
+ w = w[0];
+
+ Q.push( w );
+ V[ w.id() ] = true;
+
+ id2depth[ w.id() ] = id2depth[ v.id() ] + 1;
+
+ connectedNodes.push( w );
+ connectedBy[ w.id() ] = e;
+ }
+ }
+
+ }
+
+ var connectedEles = [];
+
+ for( var i = 0; i < connectedNodes.length; i++ ){
+ var node = connectedNodes[i];
+ var edge = connectedBy[ node.id() ];
+
+ if( edge ){
+ connectedEles.push( edge );
+ }
+
+ connectedEles.push( node );
+ }
+
+ return {
+ path: new $$.Collection( cy, connectedEles, { unique: true } ),
+ found: new $$.Collection( cy, found, { unique: true } )
+ };
+ },
+
+ // std functional ele first callback style
+ stdDepthFirstSearch: function( options ){
+ options = $$.util.extend( {}, options, {
+ std: true
+ } );
+
+ return this.depthFirstSearch( options );
+ },
+
+ // do a depth first search on the nodes in the collection
+ // from pseudocode on wikipedia (iterative impl)
+ depthFirstSearch: function( roots, fn, directed ){
+ var options;
+ var std;
+ var thisArg;
+ if( $$.is.plainObject(roots) && !$$.is.elementOrCollection(roots) ){
+ options = roots;
+ roots = options.roots;
+ fn = options.visit;
+ directed = options.directed;
+ std = options.std;
+ thisArg = options.thisArg;
+ }
+
+ directed = arguments.length === 2 && !$$.is.fn(fn) ? fn : directed;
+ fn = $$.is.fn(fn) ? fn : function(){};
+ var cy = this._private.cy;
+ var v = $$.is.string(roots) ? this.filter(roots) : roots;
+ var S = [];
+ var connectedNodes = [];
+ var connectedBy = {};
+ var id2depth = {};
+ var discovered = {};
+ var j = 0;
+ var found;
+ var edges = this.edges();
+ var nodes = this.nodes();
+
+ // push v
+ for( var i = 0; i < v.length; i++ ){
+ if( v[i].isNode() ){
+ S.push( v[i] );
+
+ connectedNodes.push( v[i] );
+ id2depth[ v[i].id() ] = 0;
+ }
+ }
+
+ while( S.length !== 0 ){
+ var v = S.pop();
+
+ if( !discovered[ v.id() ] ){
+ discovered[ v.id() ] = true;
+
+ var depth = id2depth[ v.id() ];
+ var prevEdge = connectedBy[ v.id() ];
+ var prevNode = prevEdge == null ? undefined : prevEdge.connectedNodes().not( v )[0];
+ var ret;
+
+ if( std ){
+ ret = fn.call(thisArg, v, prevEdge, prevNode, j++, depth);
+ } else {
+ ret = fn.call(v, j++, depth, v, prevEdge, prevNode);
+ }
+
+ if( ret === true ){
+ found = v;
+ break;
+ }
+
+ if( ret === false ){
+ break;
+ }
+
+ var vwEdges = v.connectedEdges(directed ? function(){ return this.data('source') === v.id(); } : undefined).intersect( edges );
+
+ for( var i = 0; i < vwEdges.length; i++ ){
+ var e = vwEdges[i];
+ var w = e.connectedNodes(function(){ return this.id() !== v.id(); }).intersect( nodes );
+
+ if( w.length !== 0 && !discovered[ w.id() ] ){
+ w = w[0];
+
+ S.push( w );
+
+ id2depth[ w.id() ] = id2depth[ v.id() ] + 1;
+
+ connectedNodes.push( w );
+ connectedBy[ w.id() ] = e;
+ }
+ }
+ }
+ }
+
+ var connectedEles = [];
+
+ for( var i = 0; i < connectedNodes.length; i++ ){
+ var node = connectedNodes[i];
+ var edge = connectedBy[ node.id() ];
+
+ if( edge ){
+ connectedEles.push( edge );
+ }
+
+ connectedEles.push( node );
+ }
+
+ return {
+ path: new $$.Collection( cy, connectedEles, { unique: true } ),
+ found: new $$.Collection( cy, found, { unique: true } )
+ };
+ },
+
+ // kruskal's algorithm (finds min spanning tree, assuming undirected graph)
+ // implemented from pseudocode from wikipedia
+ kruskal: function( weightFn ){
+ weightFn = $$.is.fn(weightFn) ? weightFn : function(){ return 1; }; // if not specified, assume each edge has equal weight (1)
+
+ function findSet(ele){
+ for( var i = 0; i < forest.length; i++ ){
+ var eles = forest[i];
+
+ if( eles.anySame(ele) ){
+ return {
+ eles: eles,
+ index: i
+ };
+ }
+ }
+ }
+
+ var A = new $$.Collection(this._private.cy, []);
+ var forest = [];
+ var nodes = this.nodes();
+
+ for( var i = 0; i < nodes.length; i++ ){
+ forest.push( nodes[i].collection() );
+ }
+
+ var edges = this.edges();
+ var S = edges.toArray().sort(function(a, b){
+ var weightA = weightFn.call(a, a);
+ var weightB = weightFn.call(b, b);
+
+ return weightA - weightB;
+ });
+
+ for(var i = 0; i < S.length; i++){
+ var edge = S[i];
+ var u = edge.source()[0];
+ var v = edge.target()[0];
+ var setU = findSet(u);
+ var setV = findSet(v);
+
+ if( setU.index !== setV.index ){
+ A = A.add( edge );
+
+ // combine forests for u and v
+ forest[ setU.index ] = setU.eles.add( setV.eles );
+ forest.splice( setV.index, 1 );
+ }
+ }
+
+ return nodes.add( A );
+
+ },
+
+ dijkstra: function( root, weightFn, directed ){
+ var options;
+ if( $$.is.plainObject(root) && !$$.is.elementOrCollection(root) ){
+ options = root;
+ root = options.root;
+ weightFn = options.weight;
+ directed = options.directed;
+ }
+
+ var cy = this._private.cy;
+ directed = !$$.is.fn(weightFn) ? weightFn : directed;
+ weightFn = $$.is.fn(weightFn) ? weightFn : function(){ return 1; }; // if not specified, assume each edge has equal weight (1)
+
+ var source = $$.is.string(root) ? this.filter(root).eq(0) : root.eq(0);
+ var dist = {};
+ var prev = {};
+ var knownDist = {};
+
+ var edges = this.edges().filter(function(){ return !this.isLoop(); });
+ var nodes = this.nodes();
+ var Q = [];
+
+ for( var i = 0; i < nodes.length; i++ ){
+ dist[ nodes[i].id() ] = nodes[i].same( source ) ? 0 : Infinity;
+ Q.push( nodes[i] );
+ }
+
+ var valueFn = function(node) {
+ return dist[ node.id() ];
+ };
+
+ Q = new $$.Collection(cy, Q);
+
+ var heap = $$.Minheap(cy, Q, valueFn);
+
+ var distBetween = function(u, v){
+ var uvs = ( directed ? u.edgesTo(v) : u.edgesWith(v) ).intersect(edges);
+ var smallestDistance = Infinity;
+ var smallestEdge;
+
+ for( var i = 0; i < uvs.length; i++ ){
+ var edge = uvs[i];
+ var weight = weightFn.apply( edge, [edge] );
+
+ if( weight < smallestDistance || !smallestEdge ){
+ smallestDistance = weight;
+ smallestEdge = edge;
+ }
+ }
+
+ return {
+ edge: smallestEdge,
+ dist: smallestDistance
+ };
+ };
+
+ while(heap.size() > 0){
+ var smallestEl = heap.pop(),
+ smalletsDist = smallestEl.value,
+ uid = smallestEl.id,
+ u = cy.getElementById(uid);
+
+ knownDist[uid] = smalletsDist;
+
+ if( smalletsDist === Math.Infinite ){
+ break;
+ }
+
+ var neighbors = u.neighborhood().intersect(nodes);
+ for( var i = 0; i < neighbors.length; i++ ){
+ var v = neighbors[i];
+ var vid = v.id();
+ var vDist = distBetween(u, v);
+
+ var alt = smalletsDist + vDist.dist;
+
+ if( alt < heap.getValueById(vid) ){
+ heap.edit(vid, alt);
+ prev[ vid ] = {
+ node: u,
+ edge: vDist.edge
+ };
+ }
+ } // for
+ } // while
+
+ return {
+ distanceTo: function(node){
+ var target = $$.is.string(node) ? nodes.filter(node).eq(0) : node.eq(0);
+
+ return knownDist[ target.id() ];
+ },
+
+ pathTo: function(node){
+ var target = $$.is.string(node) ? nodes.filter(node).eq(0) : node.eq(0);
+ var S = [];
+ var u = target;
+
+ if( target.length > 0 ){
+ S.unshift( target );
+
+ while( prev[ u.id() ] ){
+ var p = prev[ u.id() ];
+
+ S.unshift( p.edge );
+ S.unshift( p.node );
+
+ u = p.node;
+ }
+ }
+
+ return new $$.Collection( cy, S );
+ }
+ };
+ }
+ });
+
+ // nice, short mathemathical alias
+ $$.elesfn.bfs = $$.elesfn.breadthFirstSearch;
+ $$.elesfn.dfs = $$.elesfn.depthFirstSearch;
+ $$.elesfn.stdBfs = $$.elesfn.stdBreadthFirstSearch;
+ $$.elesfn.stdDfs = $$.elesfn.stdDepthFirstSearch;
+
+})( cytoscape );
+;(function($$) {
+ 'use strict';
+
+ // Additional graph analysis algorithms
+ $$.fn.eles({
+
+ // Implemented from pseudocode from wikipedia
+
+ // options => options object
+ // root // starting node (either element or selector string)
+ // weight: function( edge ){} // specifies weight to use for `edge`/`this`. If not present, it will be asumed a weight of 1 for all edges
+ // heuristic: function( node ){} // specifies heuristic value for `node`/`this`
+ // directed // default false
+ // goal // target node (either element or selector string). Mandatory.
+
+ // retObj => returned object by function
+ // found : true/false // whether a path from root to goal has been found
+ // distance // Distance for the shortest path from root to goal
+ // path // Array of ids of nodes in shortest path
+ aStar: function(options) {
+ options = options || {};
+
+ var logDebug = function() {
+ if (debug) {
+ console.log.apply(console, arguments);
+ }
+ };
+
+ // Reconstructs the path from Start to End, acumulating the result in pathAcum
+ var reconstructPath = function(start, end, cameFromMap, pathAcum) {
+ // Base case
+ if (start == end) {
+ pathAcum.push( cy.getElementById(end) );
+ return pathAcum;
+ }
+
+ if (end in cameFromMap) {
+ // We know which node is before the last one
+ var previous = cameFromMap[end];
+ var previousEdge = cameFromEdge[end];
+
+ pathAcum.push( cy.getElementById(end) );
+ pathAcum.push( cy.getElementById(previousEdge) );
+
+
+ return reconstructPath(start,
+ previous,
+ cameFromMap,
+ pathAcum);
+ }
+
+ // We should not reach here!
+ return undefined;
+ };
+
+ // Returns the index of the element in openSet which has minimum fScore
+ var findMin = function(openSet, fScore) {
+ if (openSet.length === 0) {
+ // Should never be the case
+ return undefined;
+ }
+ var minPos = 0;
+ var tempScore = fScore[openSet[0]];
+ for (var i = 1; i < openSet.length; i++) {
+ var s = fScore[openSet[i]];
+ if (s < tempScore) {
+ tempScore = s;
+ minPos = i;
+ }
+ }
+ return minPos;
+ };
+
+ // Parse options
+ // debug - optional
+ if (options.debug != null) {
+ var debug = options.debug;
+ } else {
+ var debug = false;
+ }
+
+ logDebug("Starting aStar...");
+ var cy = this._private.cy;
+
+ // root - mandatory!
+ if (options != null && options.root != null) {
+ var source = $$.is.string(options.root) ?
+ // use it as a selector, e.g. "#rootID
+ this.filter(options.root)[0] :
+ options.root[0];
+ logDebug("Source node: %s", source.id());
+ } else {
+ return undefined;
+ }
+
+ // goal - mandatory!
+ if (options.goal != null) {
+ var target = $$.is.string(options.goal) ?
+ // use it as a selector, e.g. "#goalID
+ this.filter(options.goal)[0] :
+ options.goal[0];
+ logDebug("Target node: %s", target.id());
+ } else {
+ return undefined;
+ }
+
+ // Heuristic function - optional
+ if (options.heuristic != null && $$.is.fn(options.heuristic)) {
+ var heuristic = options.heuristic;
+ } else {
+ var heuristic = function(){ return 0; }; // use constant if unspecified
+ // $$.util.error("Missing required parameter (heuristic)! Aborting.");
+ // return;
+ }
+
+ // Weight function - optional
+ if (options.weight != null && $$.is.fn(options.weight)) {
+ var weightFn = options.weight;
+ } else {
+ // If not specified, assume each edge has equal weight (1)
+ var weightFn = function(e) {return 1;};
+ }
+
+ // directed - optional
+ if (options.directed != null) {
+ var directed = options.directed;
+ } else {
+ var directed = false;
+ }
+
+ var closedSet = [];
+ var openSet = [source.id()];
+ var cameFrom = {};
+ var cameFromEdge = {};
+ var gScore = {};
+ var fScore = {};
+
+ gScore[source.id()] = 0;
+ fScore[source.id()] = heuristic(source);
+
+ var edges = this.edges().not(':loop');
+ var nodes = this.nodes();
+
+ // Counter
+ var steps = 0;
+
+ // Main loop
+ while (openSet.length > 0) {
+ var minPos = findMin(openSet, fScore);
+ var cMin = this.filter("#" + openSet[minPos])[0];
+ steps++;
+
+ logDebug("\nStep: %s", steps);
+ logDebug("Processing node: %s, fScore = %s", cMin.id(), fScore[cMin.id()]);
+
+ // If we've found our goal, then we are done
+ if (cMin.id() == target.id()) {
+ logDebug("Found goal node!");
+ var rPath = reconstructPath(source.id(), target.id(), cameFrom, []);
+ rPath.reverse();
+ logDebug("Path: %s", rPath);
+ return {
+ found : true,
+ distance : gScore[cMin.id()],
+ path : new $$.Collection(cy, rPath),
+ steps : steps
+ };
+ }
+
+ // Add cMin to processed nodes
+ closedSet.push(cMin.id());
+ // Remove cMin from boundary nodes
+ openSet.splice(minPos, 1);
+ logDebug("Added node to closedSet, removed from openSet.");
+ logDebug("Processing neighbors...");
+
+ // Update scores for neighbors of cMin
+ // Take into account if graph is directed or not
+ var vwEdges = cMin.connectedEdges(directed ? '[source = "' + cMin.id() + '"]'
+ : undefined).intersect(edges);
+ for (var i = 0; i < vwEdges.length; i++) {
+ var e = vwEdges[i];
+ var w = e.connectedNodes('[id != "' + cMin.id() + '"]').intersect(nodes);
+
+ logDebug(" processing neighbor: %s", w.id());
+ // if node is in closedSet, ignore it
+ if (closedSet.indexOf(w.id()) != -1) {
+ logDebug(" already in closedSet, ignoring it.");
+ continue;
+ }
+
+ // New tentative score for node w
+ var tempScore = gScore[cMin.id()] + weightFn.apply(e, [e]);
+ logDebug(" tentative gScore: %d", tempScore);
+
+ // Update gScore for node w if:
+ // w not present in openSet
+ // OR
+ // tentative gScore is less than previous value
+
+ // w not in openSet
+ if (openSet.indexOf(w.id()) == -1) {
+ gScore[w.id()] = tempScore;
+ fScore[w.id()] = tempScore + heuristic(w);
+ openSet.push(w.id()); // Add node to openSet
+ cameFrom[w.id()] = cMin.id();
+ cameFromEdge[w.id()] = e.id();
+ logDebug(" not in openSet, adding it. ");
+ logDebug(" fScore(%s) = %s", w.id(), tempScore);
+ continue;
+ }
+ // w already in openSet, but with greater gScore
+ if (tempScore < gScore[w.id()]) {
+ gScore[w.id()] = tempScore;
+ fScore[w.id()] = tempScore + heuristic(w);
+ cameFrom[w.id()] = cMin.id();
+ logDebug(" better score, replacing gScore. ");
+ logDebug(" fScore(%s) = %s", w.id(), tempScore);
+ }
+
+ } // End of neighbors update
+
+ } // End of main loop
+
+ // If we've reached here, then we've not reached our goal
+ logDebug("Reached end of computation without finding our goal");
+ return {
+ found : false,
+ distance : undefined,
+ path : undefined,
+ steps : steps
+ };
+ }, // aStar()
+
+
+ // Implemented from pseudocode from wikipedia
+ // options => options object
+ // weight: function( edge ){} // specifies weight to use for `edge`/`this`. If not present, it will be asumed a weight of 1 for all edges
+ // directed // default false
+ // retObj => returned object by function
+ // pathTo : function(fromId, toId) // Returns the shortest path from node with ID "fromID" to node with ID "toId", as an array of node IDs
+ // distanceTo: function(fromId, toId) // Returns the distance of the shortest path from node with ID "fromID" to node with ID "toId"
+ floydWarshall: function(options) {
+ options = options || {};
+
+ var logDebug = function() {
+ if (debug) {
+ console.log.apply(console, arguments);
+ }
+ };
+
+ // Parse options
+ // debug - optional
+ if (options.debug != null) {
+ var debug = options.debug;
+ } else {
+ var debug = false;
+ }
+ logDebug("Starting floydWarshall...");
+
+ var cy = this._private.cy;
+
+ // Weight function - optional
+ if (options.weight != null && $$.is.fn(options.weight)) {
+ var weightFn = options.weight;
+ } else {
+ // If not specified, assume each edge has equal weight (1)
+ var weightFn = function(e) {return 1;};
+ }
+
+ // directed - optional
+ if (options.directed != null) {
+ var directed = options.directed;
+ } else {
+ var directed = false;
+ }
+
+ var edges = this.edges().not(':loop');
+ var nodes = this.nodes();
+ var numNodes = nodes.length;
+
+ // mapping: node id -> position in nodes array
+ var id2position = {};
+ for (var i = 0; i < numNodes; i++) {
+ id2position[nodes[i].id()] = i;
+ }
+
+ // Initialize distance matrix
+ var dist = [];
+ for (var i = 0; i < numNodes; i++) {
+ var newRow = new Array(numNodes);
+ for (var j = 0; j < numNodes; j++) {
+ if (i == j) {
+ newRow[j] = 0;
+ } else {
+ newRow[j] = Infinity;
+ }
+ }
+ dist.push(newRow);
+ }
+
+ // Initialize matrix used for path reconstruction
+ // Initialize distance matrix
+ var next = [];
+ var edgeNext = [];
+
+ var initMatrix = function(next){
+ for (var i = 0; i < numNodes; i++) {
+ var newRow = new Array(numNodes);
+ for (var j = 0; j < numNodes; j++) {
+ newRow[j] = undefined;
+ }
+ next.push(newRow);
+ }
+ };
+
+ initMatrix(next);
+ initMatrix(edgeNext);
+
+ // Process edges
+ for (var i = 0; i < edges.length ; i++) {
+ var sourceIndex = id2position[edges[i].source().id()];
+ var targetIndex = id2position[edges[i].target().id()];
+ var weight = weightFn.apply(edges[i], [edges[i]]);
+
+ // Check if already process another edge between same 2 nodes
+ if (dist[sourceIndex][targetIndex] > weight) {
+ dist[sourceIndex][targetIndex] = weight;
+ next[sourceIndex][targetIndex] = targetIndex;
+ edgeNext[sourceIndex][targetIndex] = edges[i];
+ }
+ }
+
+ // If undirected graph, process 'reversed' edges
+ if (!directed) {
+ for (var i = 0; i < edges.length ; i++) {
+ var sourceIndex = id2position[edges[i].target().id()];
+ var targetIndex = id2position[edges[i].source().id()];
+ var weight = weightFn.apply(edges[i], [edges[i]]);
+
+ // Check if already process another edge between same 2 nodes
+ if (dist[sourceIndex][targetIndex] > weight) {
+ dist[sourceIndex][targetIndex] = weight;
+ next[sourceIndex][targetIndex] = targetIndex;
+ edgeNext[sourceIndex][targetIndex] = edges[i];
+ }
+ }
+ }
+
+ // Main loop
+ for (var k = 0; k < numNodes; k++) {
+ for (var i = 0; i < numNodes; i++) {
+ for (var j = 0; j < numNodes; j++) {
+ if (dist[i][k] + dist[k][j] < dist[i][j]) {
+ dist[i][j] = dist[i][k] + dist[k][j];
+ next[i][j] = next[i][k];
+ }
+ }
+ }
+ }
+
+ // Build result object
+ var position2id = [];
+ for (var i = 0; i < numNodes; i++) {
+ position2id.push(nodes[i].id());
+ }
+
+ var res = {
+ distance: function(from, to) {
+ if ($$.is.string(from)) {
+ // from is a selector string
+ var fromId = (cy.filter(from)[0]).id();
+ } else {
+ // from is a node
+ var fromId = from.id();
+ }
+
+ if ($$.is.string(to)) {
+ // to is a selector string
+ var toId = (cy.filter(to)[0]).id();
+ } else {
+ // to is a node
+ var toId = to.id();
+ }
+
+ return dist[id2position[fromId]][id2position[toId]];
+ },
+
+ path: function(from, to) {
+ var reconstructPathAux = function(from, to, next, position2id, edgeNext) {
+ if (from === to) {
+ return cy.getElementById( position2id[from] );
+ }
+ if (next[from][to] === undefined) {
+ return undefined;
+ }
+
+ var path = [ cy.getElementById(position2id[from]) ];
+ var prev = from;
+ while (from !== to) {
+ prev = from;
+ from = next[from][to];
+
+ var edge = edgeNext[prev][from];
+ path.push( edge );
+
+ path.push( cy.getElementById(position2id[from]) );
+ }
+ return path;
+ };
+
+ if ($$.is.string(from)) {
+ // from is a selector string
+ var fromId = (cy.filter(from)[0]).id();
+ } else {
+ // from is a node
+ var fromId = from.id();
+ }
+
+ if ($$.is.string(to)) {
+ // to is a selector string
+ var toId = (cy.filter(to)[0]).id();
+ } else {
+ // to is a node
+ var toId = to.id();
+ }
+
+ var pathArr = reconstructPathAux(id2position[fromId],
+ id2position[toId],
+ next,
+ position2id,
+ edgeNext);
+
+ return new $$.Collection( cy, pathArr );
+ },
+ };
+
+ return res;
+
+ }, // floydWarshall
+
+
+ // Implemented from pseudocode from wikipedia
+ // options => options object
+ // root: starting node (either element or selector string)
+ // weight: function( edge ){} // specifies weight to use for `edge`/`this`. If not present, it will be asumed a weight of 1 for all edges
+ // directed // default false
+ // retObj => returned object by function
+ // pathTo : function(toId) // Returns the shortest path from root node to node with ID "toId", as an array of node IDs
+ // distanceTo: function(toId) // Returns the distance of the shortest path from root node to node with ID "toId"
+ // hasNegativeWeightCycle: true/false (if true, pathTo and distanceTo will be undefined)
+ bellmanFord: function(options) {
+ options = options || {};
+
+ var logDebug = function() {
+ if (debug) {
+ console.log.apply(console, arguments);
+ }
+ };
+
+ // Parse options
+ // debug - optional
+ if (options.debug != null) {
+ var debug = options.debug;
+ } else {
+ var debug = false;
+ }
+ logDebug("Starting bellmanFord...");
+
+ // Weight function - optional
+ if (options.weight != null && $$.is.fn(options.weight)) {
+ var weightFn = options.weight;
+ } else {
+ // If not specified, assume each edge has equal weight (1)
+ var weightFn = function(e) {return 1;};
+ }
+
+ // directed - optional
+ if (options.directed != null) {
+ var directed = options.directed;
+ } else {
+ var directed = false;
+ }
+
+ // root - mandatory!
+ if (options.root != null) {
+ if ($$.is.string(options.root)) {
+ // use it as a selector, e.g. "#rootID
+ var source = this.filter(options.root)[0];
+ } else {
+ var source = options.root[0];
+ }
+ logDebug("Source node: %s", source.id());
+ } else {
+ $$.util.error("options.root required");
+ return undefined;
+ }
+
+ var cy = this._private.cy;
+ var edges = this.edges().not(':loop');
+ var nodes = this.nodes();
+ var numNodes = nodes.length;
+
+ // mapping: node id -> position in nodes array
+ var id2position = {};
+ for (var i = 0; i < numNodes; i++) {
+ id2position[nodes[i].id()] = i;
+ }
+
+ // Initializations
+ var cost = [];
+ var predecessor = [];
+ var predEdge = [];
+
+ for (var i = 0; i < numNodes; i++) {
+ if (nodes[i].id() === source.id()) {
+ cost[i] = 0;
+ } else {
+ cost[i] = Infinity;
+ }
+ predecessor[i] = undefined;
+ }
+
+ // Edges relaxation
+ var flag = false;
+ for (var i = 1; i < numNodes; i++) {
+ flag = false;
+ for (var e = 0; e < edges.length; e++) {
+ var sourceIndex = id2position[edges[e].source().id()];
+ var targetIndex = id2position[edges[e].target().id()];
+ var weight = weightFn.apply(edges[e], [edges[e]]);
+
+ var temp = cost[sourceIndex] + weight;
+ if (temp < cost[targetIndex]) {
+ cost[targetIndex] = temp;
+ predecessor[targetIndex] = sourceIndex;
+ predEdge[targetIndex] = edges[e];
+ flag = true;
+ }
+
+ // If undirected graph, we need to take into account the 'reverse' edge
+ if (!directed) {
+ var temp = cost[targetIndex] + weight;
+ if (temp < cost[sourceIndex]) {
+ cost[sourceIndex] = temp;
+ predecessor[sourceIndex] = targetIndex;
+ predEdge[sourceIndex] = edges[e];
+ flag = true;
+ }
+ }
+ }
+
+ if (!flag) {
+ break;
+ }
+ }
+
+ if (flag) {
+ // Check for negative weight cycles
+ for (var e = 0; e < edges.length; e++) {
+ var sourceIndex = id2position[edges[e].source().id()];
+ var targetIndex = id2position[edges[e].target().id()];
+ var weight = weightFn.apply(edges[e], [edges[e]]);
+
+ if (cost[sourceIndex] + weight < cost[targetIndex]) {
+ $$.util.error("Error: graph contains a negative weigth cycle!");
+ return { pathTo: undefined,
+ distanceTo: undefined,
+ hasNegativeWeightCycle: true};
+ }
+ }
+ }
+
+ // Build result object
+ var position2id = [];
+ for (var i = 0; i < numNodes; i++) {
+ position2id.push(nodes[i].id());
+ }
+
+
+ var res = {
+ distanceTo : function(to) {
+ if ($$.is.string(to)) {
+ // to is a selector string
+ var toId = (cy.filter(to)[0]).id();
+ } else {
+ // to is a node
+ var toId = to.id();
+ }
+
+ return cost[id2position[toId]];
+ },
+
+ pathTo : function(to) {
+
+ var reconstructPathAux = function(predecessor, fromPos, toPos, position2id, acumPath, predEdge) {
+ for(;;){
+ // Add toId to path
+ acumPath.push( cy.getElementById(position2id[toPos]) );
+ acumPath.push( predEdge[toPos] );
+
+ if (fromPos === toPos) {
+ // reached starting node
+ return acumPath;
+ }
+
+ // If no path exists, discart acumulated path and return undefined
+ var predPos = predecessor[toPos];
+ if (typeof predPos === "undefined") {
+ return undefined;
+ }
+
+ toPos = predPos;
+ }
+
+ };
+
+ if ($$.is.string(to)) {
+ // to is a selector string
+ var toId = (cy.filter(to)[0]).id();
+ } else {
+ // to is a node
+ var toId = to.id();
+ }
+ var path = [];
+
+ // This returns a reversed path
+ var res = reconstructPathAux(predecessor,
+ id2position[source.id()],
+ id2position[toId],
+ position2id,
+ path,
+ predEdge);
+
+ // Get it in the correct order and return it
+ if (res != null) {
+ res.reverse();
+ }
+
+ return new $$.Collection(cy, res);
+ },
+
+ hasNegativeWeightCycle: false
+ };
+
+ return res;
+
+ }, // bellmanFord
+
+
+ // Computes the minimum cut of an undirected graph
+ // Returns the correct answer with high probability
+ // options => options object
+ //
+ // retObj => returned object by function
+ // cut : list of IDs of edges in the cut,
+ // partition1: list of IDs of nodes in one partition
+ // partition2: list of IDs of nodes in the other partition
+ kargerStein: function(options) {
+ options = options || {};
+
+ var logDebug = function() {
+ if (debug) {
+ console.log.apply(console, arguments);
+ }
+ };
+
+ // Function which colapses 2 (meta) nodes into one
+ // Updates the remaining edge lists
+ // Receives as a paramater the edge which causes the collapse
+ var colapse = function(edgeIndex, nodeMap, remainingEdges) {
+ var edgeInfo = remainingEdges[edgeIndex];
+ var sourceIn = edgeInfo[1];
+ var targetIn = edgeInfo[2];
+ var partition1 = nodeMap[sourceIn];
+ var partition2 = nodeMap[targetIn];
+
+ // Delete all edges between partition1 and partition2
+ var newEdges = remainingEdges.filter(function(edge) {
+ if (nodeMap[edge[1]] === partition1 && nodeMap[edge[2]] === partition2) {
+ return false;
+ }
+ if (nodeMap[edge[1]] === partition2 && nodeMap[edge[2]] === partition1) {
+ return false;
+ }
+ return true;
+ });
+
+ // All edges pointing to partition2 should now point to partition1
+ for (var i = 0; i < newEdges.length; i++) {
+ var edge = newEdges[i];
+ if (edge[1] === partition2) { // Check source
+ newEdges[i] = edge.slice(0);
+ newEdges[i][1] = partition1;
+ } else if (edge[2] === partition2) { // Check target
+ newEdges[i] = edge.slice(0);
+ newEdges[i][2] = partition1;
+ }
+ }
+
+ // Move all nodes from partition2 to partition1
+ for (var i = 0; i < nodeMap.length; i++) {
+ if (nodeMap[i] === partition2) {
+ nodeMap[i] = partition1;
+ }
+ }
+
+ return newEdges;
+ };
+
+
+ // Contracts a graph until we reach a certain number of meta nodes
+ var contractUntil = function(metaNodeMap,
+ remainingEdges,
+ size,
+ sizeLimit) {
+ // Stop condition
+ if (size <= sizeLimit) {
+ return remainingEdges;
+ }
+
+ // Choose an edge randomly
+ var edgeIndex = Math.floor((Math.random() * remainingEdges.length));
+
+ // Colapse graph based on edge
+ var newEdges = colapse(edgeIndex, metaNodeMap, remainingEdges);
+
+ return contractUntil(metaNodeMap,
+ newEdges,
+ size - 1,
+ sizeLimit);
+ };
+
+
+ // Parse options
+ // debug - optional
+ if (options != null && options.debug != null) {
+ var debug = options.debug;
+ } else {
+ var debug = false;
+ }
+ logDebug("Starting kargerStein...");
+
+ var cy = this._private.cy;
+ var edges = this.edges().not(':loop');
+ var nodes = this.nodes();
+ var numNodes = nodes.length;
+ var numEdges = edges.length;
+ var numIter = Math.ceil(Math.pow(Math.log(numNodes) / Math.LN2, 2));
+ var stopSize = Math.floor(numNodes / Math.sqrt(2));
+
+ if (numNodes < 2) {
+ $$.util.error("At least 2 nodes are required for KargerSteing algorithm!");
+ return undefined;
+ }
+
+ // Create numerical identifiers for each node
+ // mapping: node id -> position in nodes array
+ // for reverse mapping, simply use nodes array
+ var id2position = {};
+ for (var i = 0; i < numNodes; i++) {
+ id2position[nodes[i].id()] = i;
+ }
+
+ // Now store edge destination as indexes
+ // Format for each edge (edge index, source node index, target node index)
+ var edgeIndexes = [];
+ for (var i = 0; i < numEdges; i++) {
+ var e = edges[i];
+ edgeIndexes.push([i, id2position[e.source().id()], id2position[e.target().id()]]);
+ }
+
+ // We will store the best cut found here
+ var minCutSize = Infinity;
+ var minCut;
+
+ // Initial meta node partition
+ var originalMetaNode = [];
+ for (var i = 0; i < numNodes; i++) {
+ originalMetaNode.push(i);
+ }
+
+ // Main loop
+ for (var iter = 0; iter <= numIter; iter++) {
+ // Create new meta node partition
+ var metaNodeMap = originalMetaNode.slice(0);
+
+ // Contract until stop point (stopSize nodes)
+ var edgesState = contractUntil(metaNodeMap, edgeIndexes, numNodes, stopSize);
+
+ // Create a copy of the colapsed nodes state
+ var metaNodeMap2 = metaNodeMap.slice(0);
+
+ // Run 2 iterations starting in the stop state
+ var res1 = contractUntil(metaNodeMap, edgesState, stopSize, 2);
+ var res2 = contractUntil(metaNodeMap2, edgesState, stopSize, 2);
+
+ // Is any of the 2 results the best cut so far?
+ if (res1.length <= res2.length && res1.length < minCutSize) {
+ minCutSize = res1.length;
+ minCut = [res1, metaNodeMap];
+ } else if (res2.length <= res1.length && res2.length < minCutSize) {
+ minCutSize = res2.length;
+ minCut = [res2, metaNodeMap2];
+ }
+ } // end of main loop
+
+
+ // Construct result
+ var resEdges = (minCut[0]).map(function(e){ return edges[e[0]]; });
+ var partition1 = [];
+ var partition2 = [];
+
+ // traverse metaNodeMap for best cut
+ var witnessNodePartition = minCut[1][0];
+ for (var i = 0; i < minCut[1].length; i++) {
+ var partitionId = minCut[1][i];
+ if (partitionId === witnessNodePartition) {
+ partition1.push(nodes[i]);
+ } else {
+ partition2.push(nodes[i]);
+ }
+ }
+
+ var ret = {
+ cut: new $$.Collection(cy, resEdges),
+ partition1: new $$.Collection(cy, partition1),
+ partition2: new $$.Collection(cy, partition2)
+ };
+
+ return ret;
+ },
+
+
+ //
+ // options => options object
+ // dampingFactor: optional
+ // precision: optional
+ // iterations : optional
+ // retObj => returned object by function
+ // rank : function that returns the pageRank of a given node (object or selector string)
+ pageRank: function(options) {
+ options = options || {};
+
+ var normalizeVector = function(vector) {
+ var length = vector.length;
+
+ // First, get sum of all elements
+ var total = 0;
+ for (var i = 0; i < length; i++) {
+ total += vector[i];
+ }
+
+ // Now, divide each by the sum of all elements
+ for (var i = 0; i < length; i++) {
+ vector[i] = vector[i] / total;
+ }
+ };
+
+ var logDebug = function() {
+ if (debug) {
+ console.log.apply(console, arguments);
+ }
+ };
+
+ // Parse options
+ // debug - optional
+ if (options != null &&
+ options.debug != null) {
+ var debug = options.debug;
+ } else {
+ var debug = false;
+ }
+ logDebug("Starting pageRank...");
+
+ // dampingFactor - optional
+ if (options != null &&
+ options.dampingfactor != null) {
+ var dampingFactor = options.dampingFactor;
+ } else {
+ var dampingFactor = 0.8; // Default damping factor
+ }
+
+ // desired precision - optional
+ if (options != null &&
+ options.precision != null) {
+ var epsilon = options.precision;
+ } else {
+ var epsilon = 0.000001; // Default precision
+ }
+
+ // Max number of iterations - optional
+ if (options != null &&
+ options.iterations != null) {
+ var numIter = options.iterations;
+ } else {
+ var numIter = 200; // Default number of iterations
+ }
+
+ // Weight function - optional
+ if (options != null &&
+ options.weight != null &&
+ $$.is.fn(options.weight)) {
+ var weightFn = options.weight;
+ } else {
+ // If not specified, assume each edge has equal weight (1)
+ var weightFn = function(e) {return 1;};
+ }
+
+ var cy = this._private.cy;
+ var edges = this.edges().not(':loop');
+ var nodes = this.nodes();
+ var numNodes = nodes.length;
+ var numEdges = edges.length;
+
+ // Create numerical identifiers for each node
+ // mapping: node id -> position in nodes array
+ // for reverse mapping, simply use nodes array
+ var id2position = {};
+ for (var i = 0; i < numNodes; i++) {
+ id2position[nodes[i].id()] = i;
+ }
+
+ // Construct transposed adjacency matrix
+ // First lets have a zeroed matrix of the right size
+ // We'll also keep track of the sum of each column
+ var matrix = [];
+ var columnSum = [];
+ var additionalProb = (1 - dampingFactor) / numNodes;
+
+ // Create null matric
+ for (var i = 0; i < numNodes; i++) {
+ var newRow = [];
+ for (var j = 0; j < numNodes; j++) {
+ newRow.push(0.0);
+ }
+ matrix.push(newRow);
+ columnSum.push(0.0);
+ }
+
+ // Now, process edges
+ for (var i = 0; i < numEdges; i++) {
+ var edge = edges[i];
+ var s = id2position[edge.source().id()];
+ var t = id2position[edge.target().id()];
+ var w = weightFn.apply(edge, [edge]);
+
+ // Update matrix
+ matrix[t][s] += w;
+
+ // Update column sum
+ columnSum[s] += w;
+ }
+
+ // Add additional probability based on damping factor
+ // Also, take into account columns that have sum = 0
+ var p = 1.0 / numNodes + additionalProb; // Shorthand
+ // Traverse matrix, column by column
+ for (var j = 0; j < numNodes; j++) {
+ if (columnSum[j] === 0) {
+ // No 'links' out from node jth, assume equal probability for each possible node
+ for (var i = 0; i < numNodes; i++) {
+ matrix[i][j] = p;
+ }
+ } else {
+ // Node jth has outgoing link, compute normalized probabilities
+ for (var i = 0; i < numNodes; i++) {
+ matrix[i][j] = matrix[i][j] / columnSum[j] + additionalProb;
+ }
+ }
+ }
+
+ // Compute dominant eigenvector using power method
+ var eigenvector = [];
+ var nullVector = [];
+ var previous;
+
+ // Start with a vector of all 1's
+ // Also, initialize a null vector which will be used as shorthand
+ for (var i = 0; i < numNodes; i++) {
+ eigenvector.push(1.0);
+ nullVector.push(0.0);
+ }
+
+ for (var iter = 0; iter < numIter; iter++) {
+ // New array with all 0's
+ var temp = nullVector.slice(0);
+
+ // Multiply matrix with previous result
+ for (var i = 0; i < numNodes; i++) {
+ for (var j = 0; j < numNodes; j++) {
+ temp[i] += matrix[i][j] * eigenvector[j];
+ }
+ }
+
+ normalizeVector(temp);
+ previous = eigenvector;
+ eigenvector = temp;
+
+ var diff = 0;
+ // Compute difference (squared module) of both vectors
+ for (var i = 0; i < numNodes; i++) {
+ diff += Math.pow(previous[i] - eigenvector[i], 2);
+ }
+
+ // If difference is less than the desired threshold, stop iterating
+ if (diff < epsilon) {
+ logDebug("Stoped at iteration %s", iter);
+ break;
+ }
+ }
+
+ logDebug("Result:\n" + eigenvector);
+
+ // Construct result
+ var res = {
+ rank : function(node) {
+ if ($$.is.string(node)) {
+ // is a selector string
+ var nodeId = (cy.filter(node)[0]).id();
+ } else {
+ // is a node object
+ var nodeId = node.id();
+ }
+ return eigenvector[id2position[nodeId]];
+ }
+ };
+
+
+ return res;
+ } // pageRank
+
+ }); // $$.fn.eles
+
+
+}) (cytoscape);
+;(function( $$ ){ 'use strict';
+
+ $$.fn.eles({
+ animated: $$.define.animated(),
+ clearQueue: $$.define.clearQueue(),
+ delay: $$.define.delay(),
+ animate: $$.define.animate(),
+ stop: $$.define.stop()
+ });
+
+})( cytoscape );
+
+;(function( $$ ){ 'use strict';
+
+ $$.fn.eles({
+ classes: function(opts){
+ var eles = this;
+ var changed = [];
+ var fn;
+
+ if( $$.is.fn(opts) ){
+ fn = opts;
+
+ } else if( !$$.is.plainObject(opts) ){
+ return this; // needs opts or fn
+ }
+
+ for(var i = 0; i < eles.length; i++){
+ var ele = eles[i];
+ var eleChanged = false;
+
+ opts = fn ? fn.apply(ele, [i, ele]) : opts;
+
+ // add classes
+ if( opts.add ){ for( var j = 0; j < opts.add.length; j++ ){
+ var cls = opts.add[j];
+ var hasClass = ele._private.classes[cls];
+
+ ele._private.classes[cls] = true;
+
+ if( !hasClass && !eleChanged ){
+ changed.push( ele );
+ eleChanged = true;
+ }
+ } }
+
+ // remove classes
+ if( opts.remove ){ for( var j = 0; j < opts.remove.length; j++ ){
+ var cls = opts.remove[j];
+ var hasClass = ele._private.classes[cls];
+
+ ele._private.classes[cls] = false;
+
+ if( hasClass && !eleChanged ){
+ changed.push( ele );
+ eleChanged = true;
+ }
+ } }
+
+ // toggle classes
+ if( opts.toggle ){ for( var j = 0; j < opts.toggle.length; j++ ){
+ var cls = opts.toggle[j];
+ var hasClass = ele._private.classes[cls];
+
+ ele._private.classes[cls] = !hasClass;
+
+ if( !eleChanged ){
+ changed.push( ele );
+ eleChanged = true;
+ }
+ } }
+ }
+
+ if( changed.length > 0 ){
+ new $$.Collection( this.cy(), changed )
+ .updateStyle()
+ .trigger('class')
+ ;
+ }
+
+ return this;
+ },
+
+ addClass: function(classes){
+ classes = classes.split(/\s+/);
+ var self = this;
+ var changed = [];
+
+ for( var i = 0; i < classes.length; i++ ){
+ var cls = classes[i];
+ if( $$.is.emptyString(cls) ){ continue; }
+
+ for( var j = 0; j < self.length; j++ ){
+ var ele = self[j];
+ var hasClass = ele._private.classes[cls];
+ ele._private.classes[cls] = true;
+
+ if( !hasClass ){ // if didn't already have, add to list of changed
+ changed.push( ele );
+ }
+ }
+ }
+
+ // trigger update style on those eles that had class changes
+ if( changed.length > 0 ){
+ new $$.Collection(this._private.cy, changed)
+ .updateStyle()
+ .trigger('class')
+ ;
+ }
+
+ return self;
+ },
+
+ hasClass: function(className){
+ var ele = this[0];
+ return ( ele != null && ele._private.classes[className] ) ? true : false;
+ },
+
+ toggleClass: function(classesStr, toggle){
+ var classes = classesStr.split(/\s+/);
+ var self = this;
+ var changed = []; // eles who had classes changed
+
+ for( var i = 0, il = self.length; i < il; i++ ){
+ var ele = self[i];
+
+ for( var j = 0; j < classes.length; j++ ){
+ var cls = classes[j];
+
+ if( $$.is.emptyString(cls) ){ continue; }
+
+ var hasClass = ele._private.classes[cls];
+ var shouldAdd = toggle || (toggle === undefined && !hasClass);
+
+ if( shouldAdd ){
+ ele._private.classes[cls] = true;
+
+ if( !hasClass ){ changed.push(ele); }
+ } else { // then remove
+ ele._private.classes[cls] = false;
+
+ if( hasClass ){ changed.push(ele); }
+ }
+
+ } // for j classes
+ } // for i eles
+
+ // trigger update style on those eles that had class changes
+ if( changed.length > 0 ){
+ new $$.Collection(this._private.cy, changed)
+ .updateStyle()
+ .trigger('class')
+ ;
+ }
+
+ return self;
+ },
+
+ removeClass: function(classes){
+ classes = classes.split(/\s+/);
+ var self = this;
+ var changed = [];
+
+ for( var i = 0; i < self.length; i++ ){
+ var ele = self[i];
+
+ for( var j = 0; j < classes.length; j++ ){
+ var cls = classes[j];
+ if( !cls || cls === '' ){ continue; }
+
+ var hasClass = ele._private.classes[cls];
+ ele._private.classes[cls] = undefined;
+
+ if( hasClass ){ // then we changed its set of classes
+ changed.push( ele );
+ }
+ }
+ }
+
+ // trigger update style on those eles that had class changes
+ if( changed.length > 0 ){
+ new $$.Collection(self._private.cy, changed).updateStyle();
+ }
+
+ self.trigger('class');
+ return self;
+ },
+
+ flashClass: function(classes, duration){
+ var self = this;
+
+ if( duration == null ){
+ duration = 250;
+ } else if( duration === 0 ){
+ return self; // nothing to do really
+ }
+
+ self.addClass( classes );
+ setTimeout(function(){
+ self.removeClass( classes );
+ }, duration);
+
+ return self;
+ }
+ });
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.eles({
+ allAre: function( selector ){
+ return this.filter(selector).length === this.length;
+ },
+
+ is: function( selector ){
+ return this.filter(selector).length > 0;
+ },
+
+ some: function( fn, thisArg ){
+ for( var i = 0; i < this.length; i++ ){
+ var ret = fn.apply( thisArg, [ this[i], i, this ] );
+
+ if( ret ){
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ every: function( fn, thisArg ){
+ for( var i = 0; i < this.length; i++ ){
+ var ret = fn.apply( thisArg, [ this[i], i, this ] );
+
+ if( !ret ){
+ return false;
+ }
+ }
+
+ return true;
+ },
+
+ same: function( collection ){
+ collection = this.cy().collection( collection );
+
+ // cheap extra check
+ if( this.length !== collection.length ){
+ return false;
+ }
+
+ return this.intersect( collection ).length === this.length;
+ },
+
+ anySame: function( collection ){
+ collection = this.cy().collection( collection );
+
+ return this.intersect( collection ).length > 0;
+ },
+
+ allAreNeighbors: function( collection ){
+ collection = this.cy().collection( collection );
+
+ return this.neighborhood().intersect( collection ).length === collection.length;
+ }
+ });
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // Compound functions
+ /////////////////////
+
+ $$.fn.eles({
+ parent: function( selector ){
+ var parents = [];
+ var cy = this._private.cy;
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var parent = cy.getElementById( ele._private.data.parent );
+
+ if( parent.size() > 0 ){
+ parents.push( parent );
+ }
+ }
+
+ return new $$.Collection( cy, parents, { unique: true } ).filter( selector );
+ },
+
+ parents: function( selector ){
+ var parents = [];
+
+ var eles = this.parent();
+ while( eles.nonempty() ){
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ parents.push( ele );
+ }
+
+ eles = eles.parent();
+ }
+
+ return new $$.Collection( this.cy(), parents, { unique: true } ).filter( selector );
+ },
+
+ commonAncestors: function( selector ){
+ var ancestors;
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var parents = ele.parents();
+
+ ancestors = ancestors || parents;
+
+ ancestors = ancestors.intersect( parents ); // current list must be common with current ele parents set
+ }
+
+ return ancestors.filter( selector );
+ },
+
+ orphans: function( selector ){
+ return this.stdFilter(function( ele ){
+ return ele.isNode() && ele.parent().empty();
+ }).filter( selector );
+ },
+
+ nonorphans: function( selector ){
+ return this.stdFilter(function( ele ){
+ return ele.isNode() && ele.parent().nonempty();
+ }).filter( selector );
+ },
+
+ children: function( selector ){
+ var children = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ children = children.concat( ele._private.children );
+ }
+
+ return new $$.Collection( this.cy(), children, { unique: true } ).filter( selector );
+ },
+
+ siblings: function( selector ){
+ return this.parent().children().not( this ).filter( selector );
+ },
+
+ isParent: function(){
+ var ele = this[0];
+
+ if( ele ){
+ return ele._private.children.length !== 0;
+ }
+ },
+
+ isChild: function(){
+ var ele = this[0];
+
+ if( ele ){
+ return ele._private.data.parent !== undefined && ele.parent().length !== 0;
+ }
+ },
+
+ descendants: function( selector ){
+ var elements = [];
+
+ function add( eles ){
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ elements.push( ele );
+
+ if( ele.children().nonempty() ){
+ add( ele.children() );
+ }
+ }
+ }
+
+ add( this.children() );
+
+ return new $$.Collection( this.cy(), elements, { unique: true } ).filter( selector );
+ }
+ });
+
+ // aliases
+ $$.elesfn.ancestors = $$.elesfn.parents;
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var borderWidthMultiplier = 2 * 0.5;
+ var borderWidthAdjustment = 0;
+
+ $$.fn.eles({
+
+ data: $$.define.data({
+ field: 'data',
+ bindingEvent: 'data',
+ allowBinding: true,
+ allowSetting: true,
+ settingEvent: 'data',
+ settingTriggersEvent: true,
+ triggerFnName: 'trigger',
+ allowGetting: true,
+ immutableKeys: {
+ 'id': true,
+ 'source': true,
+ 'target': true,
+ 'parent': true
+ },
+ updateStyle: true
+ }),
+
+ removeData: $$.define.removeData({
+ field: 'data',
+ event: 'data',
+ triggerFnName: 'trigger',
+ triggerEvent: true,
+ immutableKeys: {
+ 'id': true,
+ 'source': true,
+ 'target': true,
+ 'parent': true
+ },
+ updateStyle: true
+ }),
+
+ scratch: $$.define.data({
+ field: 'scratch',
+ allowBinding: false,
+ allowSetting: true,
+ settingTriggersEvent: false,
+ allowGetting: true
+ }),
+
+ removeScratch: $$.define.removeData({
+ field: 'scratch',
+ triggerEvent: false
+ }),
+
+ rscratch: $$.define.data({
+ field: 'rscratch',
+ allowBinding: false,
+ allowSetting: true,
+ settingTriggersEvent: false,
+ allowGetting: true
+ }),
+
+ removeRscratch: $$.define.removeData({
+ field: 'rscratch',
+ triggerEvent: false
+ }),
+
+ id: function(){
+ var ele = this[0];
+
+ if( ele ){
+ return ele._private.data.id;
+ }
+ },
+
+ position: $$.define.data({
+ field: 'position',
+ bindingEvent: 'position',
+ allowBinding: true,
+ allowSetting: true,
+ settingEvent: 'position',
+ settingTriggersEvent: true,
+ triggerFnName: 'rtrigger',
+ allowGetting: true,
+ validKeys: ['x', 'y'],
+ onSet: function( eles ){
+ var updatedEles = eles.updateCompoundBounds();
+ updatedEles.rtrigger('position');
+ },
+ canSet: function( ele ){
+ return !ele.locked();
+ }
+ }),
+
+ // position but no notification to renderer
+ silentPosition: $$.define.data({
+ field: 'position',
+ bindingEvent: 'position',
+ allowBinding: false,
+ allowSetting: true,
+ settingEvent: 'position',
+ settingTriggersEvent: false,
+ triggerFnName: 'trigger',
+ allowGetting: true,
+ validKeys: ['x', 'y'],
+ onSet: function( eles ){
+ eles.updateCompoundBounds();
+ },
+ canSet: function( ele ){
+ return !ele.locked();
+ }
+ }),
+
+ positions: function( pos, silent ){
+ if( $$.is.plainObject(pos) ){
+ this.position(pos);
+
+ } else if( $$.is.fn(pos) ){
+ var fn = pos;
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+
+ var pos = fn.apply(ele, [i, ele]);
+
+ if( pos && !ele.locked() ){
+ var elePos = ele._private.position;
+ elePos.x = pos.x;
+ elePos.y = pos.y;
+ }
+ }
+
+ var updatedEles = this.updateCompoundBounds();
+ var toTrigger = updatedEles.length > 0 ? this.add( updatedEles ) : this;
+
+ if( silent ){
+ toTrigger.trigger('position');
+ } else {
+ toTrigger.rtrigger('position');
+ }
+ }
+
+ return this; // chaining
+ },
+
+ silentPositions: function( pos ){
+ return this.positions( pos, true );
+ },
+
+ updateCompoundBounds: function(){
+ var cy = this.cy();
+
+ if( !cy.styleEnabled() || !cy.hasCompoundNodes() ){ return cy.collection(); } // save cycles for non compound graphs or when style disabled
+
+ var updated = [];
+
+ function update( parent ){
+ var children = parent.children();
+ var style = parent._private.style;
+ var bb = children.boundingBox({ includeLabels: false, includeEdges: false });
+ var padding = {
+ top: style['padding-top'].pxValue,
+ bottom: style['padding-bottom'].pxValue,
+ left: style['padding-left'].pxValue,
+ right: style['padding-right'].pxValue
+ };
+ var pos = parent._private.position;
+ var didUpdate = false;
+
+ if( style['width'].value === 'auto' ){
+ parent._private.autoWidth = bb.w + padding.left + padding.right;
+ pos.x = (bb.x1 + bb.x2 - padding.left + padding.right)/2;
+ didUpdate = true;
+ }
+
+ if( style['height'].value === 'auto' ){
+ parent._private.autoHeight = bb.h + padding.top + padding.bottom;
+ pos.y = (bb.y1 + bb.y2 - padding.top + padding.bottom)/2;
+ didUpdate = true;
+ }
+
+ if( didUpdate ){
+ updated.push( parent );
+ }
+ }
+
+ // go up, level by level
+ var eles = this.parent();
+ while( eles.nonempty() ){
+
+ // update each parent node in this level
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ update( ele );
+ }
+
+ // next level
+ eles = eles.parent();
+ }
+
+ // return changed
+ return new $$.Collection( cy, updated );
+ },
+
+ // get/set the rendered (i.e. on screen) positon of the element
+ renderedPosition: function( dim, val ){
+ var ele = this[0];
+ var cy = this.cy();
+ var zoom = cy.zoom();
+ var pan = cy.pan();
+ var rpos = $$.is.plainObject( dim ) ? dim : undefined;
+ var setting = rpos !== undefined || ( val !== undefined && $$.is.string(dim) );
+
+ if( ele && ele.isNode() ){ // must have an element and must be a node to return position
+ if( setting ){
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+
+ if( val !== undefined ){ // set one dimension
+ ele._private.position[dim] = ( val - pan[dim] )/zoom;
+ } else if( rpos !== undefined ){ // set whole position
+ ele._private.position = {
+ x: ( rpos.x - pan.x ) /zoom,
+ y: ( rpos.y - pan.y ) /zoom
+ };
+ }
+ }
+
+ this.rtrigger('position');
+ } else { // getting
+ var pos = ele._private.position;
+ rpos = {
+ x: pos.x * zoom + pan.x,
+ y: pos.y * zoom + pan.y
+ };
+
+ if( dim === undefined ){ // then return the whole rendered position
+ return rpos;
+ } else { // then return the specified dimension
+ return rpos[ dim ];
+ }
+ }
+ } else if( !setting ){
+ return undefined; // for empty collection case
+ }
+
+ return this; // chaining
+ },
+
+ // get/set the position relative to the parent
+ parentPosition: function( dim, val ){
+ var ele = this[0];
+ var cy = this.cy();
+ var ppos = $$.is.plainObject( dim ) ? dim : undefined;
+ var setting = ppos !== undefined || ( val !== undefined && $$.is.string(dim) );
+ var hasCompoundNodes = cy.hasCompoundNodes();
+
+ if( ele && ele.isNode() ){ // must have an element and must be a node to return position
+ if( setting ){
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var parent = hasCompoundNodes ? ele.parent() : null;
+ var hasParent = parent && parent.length > 0;
+ var relativeToParent = hasParent;
+
+ if( hasParent ){
+ parent = parent[0];
+ }
+
+ var origin = relativeToParent ? parent._private.position : { x: 0, y: 0 };
+
+ if( val !== undefined ){ // set one dimension
+ ele._private.position[dim] = val + origin[dim];
+ } else if( ppos !== undefined ){ // set whole position
+ ele._private.position = {
+ x: ppos.x + origin.x,
+ y: ppos.y + origin.y,
+ };
+ }
+ }
+
+ this.rtrigger('position');
+
+ } else { // getting
+ var pos = ele._private.position;
+ var parent = hasCompoundNodes ? ele.parent() : null;
+ var hasParent = parent && parent.length > 0;
+ var relativeToParent = hasParent;
+
+ if( hasParent ){
+ parent = parent[0];
+ }
+
+ var origin = relativeToParent ? parent._private.position : { x: 0, y: 0 };
+
+ ppos = {
+ x: pos.x - origin.x,
+ y: pos.y - origin.y
+ };
+
+ if( dim === undefined ){ // then return the whole rendered position
+ return ppos;
+ } else { // then return the specified dimension
+ return ppos[ dim ];
+ }
+ }
+ } else if( !setting ){
+ return undefined; // for empty collection case
+ }
+
+ return this; // chaining
+ },
+
+ // convenience function to get a numerical value for the width of the node/edge
+ width: function(){
+ var ele = this[0];
+ var cy = ele._private.cy;
+ var styleEnabled = cy._private.styleEnabled;
+
+ if( ele ){
+ if( styleEnabled ){
+ var w = ele._private.style.width;
+ return w.strValue === 'auto' ? ele._private.autoWidth : w.pxValue;
+ } else {
+ return 1;
+ }
+ }
+ },
+
+ outerWidth: function(){
+ var ele = this[0];
+ var cy = ele._private.cy;
+ var styleEnabled = cy._private.styleEnabled;
+
+ if( ele ){
+ if( styleEnabled ){
+ var style = ele._private.style;
+ var width = style.width.strValue === 'auto' ? ele._private.autoWidth : style.width.pxValue;
+ var border = style['border-width'] ? style['border-width'].pxValue * borderWidthMultiplier + borderWidthAdjustment : 0;
+
+ return width + border;
+ } else {
+ return 1;
+ }
+ }
+ },
+
+ renderedWidth: function(){
+ var ele = this[0];
+
+ if( ele ){
+ var width = ele.width();
+ return width * this.cy().zoom();
+ }
+ },
+
+ renderedOuterWidth: function(){
+ var ele = this[0];
+
+ if( ele ){
+ var owidth = ele.outerWidth();
+ return owidth * this.cy().zoom();
+ }
+ },
+
+ // convenience function to get a numerical value for the height of the node
+ height: function(){
+ var ele = this[0];
+ var cy = ele._private.cy;
+ var styleEnabled = cy._private.styleEnabled;
+
+ if( ele && ele._private.group === 'nodes' ){
+ if( styleEnabled ){
+ var h = ele._private.style.height;
+ return h.strValue === 'auto' ? ele._private.autoHeight : h.pxValue;
+ } else {
+ return 1;
+ }
+ }
+ },
+
+ outerHeight: function(){
+ var ele = this[0];
+ var cy = ele._private.cy;
+ var styleEnabled = cy._private.styleEnabled;
+
+ if( ele && ele._private.group === 'nodes' ){
+ if( styleEnabled ){
+ var style = ele._private.style;
+ var height = style.height.strValue === 'auto' ? ele._private.autoHeight : style.height.pxValue;
+ var border = style['border-width'] ? style['border-width'].pxValue * borderWidthMultiplier + borderWidthAdjustment : 0;
+ } else {
+ return 1;
+ }
+
+ return height + border;
+ }
+ },
+
+ renderedHeight: function(){
+ var ele = this[0];
+
+ if( ele && ele._private.group === 'nodes' ){
+ var height = ele.height();
+ return height * this.cy().zoom();
+ }
+ },
+
+ renderedOuterHeight: function(){
+ var ele = this[0];
+
+ if( ele && ele._private.group === 'nodes' ){
+ var oheight = ele.outerHeight();
+ return oheight * this.cy().zoom();
+ }
+ },
+
+ renderedBoundingBox: function( options ){
+ var bb = this.boundingBox( options );
+ var cy = this.cy();
+ var zoom = cy.zoom();
+ var pan = cy.pan();
+
+ var x1 = bb.x1 * zoom + pan.x;
+ var x2 = bb.x2 * zoom + pan.x;
+ var y1 = bb.y1 * zoom + pan.y;
+ var y2 = bb.y2 * zoom + pan.y;
+
+ return {
+ x1: x1,
+ x2: x2,
+ y1: y1,
+ y2: y2,
+ w: x2 - x1,
+ h: y2 - y1
+ };
+ },
+
+ // get the bounding box of the elements (in raw model position)
+ boundingBox: function( options ){
+ var eles = this;
+ var cy = eles._private.cy;
+ var cy_p = cy._private;
+ var styleEnabled = cy_p.styleEnabled;
+
+ options = options || {};
+
+ var includeNodes = options.includeNodes === undefined ? true : options.includeNodes;
+ var includeEdges = options.includeEdges === undefined ? true : options.includeEdges;
+ var includeLabels = options.includeLabels === undefined ? true : options.includeLabels;
+
+ // recalculate projections etc
+ if( styleEnabled ){
+ cy_p.renderer.recalculateRenderedStyle( this );
+ }
+
+ var x1 = Infinity;
+ var x2 = -Infinity;
+ var y1 = Infinity;
+ var y2 = -Infinity;
+
+ // find bounds of elements
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var _p = ele._private;
+ var display = styleEnabled ? _p.style['display'].value : 'element';
+ var isNode = _p.group === 'nodes';
+ var ex1, ex2, ey1, ey2, x, y;
+ var includedEle = false;
+
+ if( display === 'none' ){ continue; } // then ele doesn't take up space
+
+ if( isNode && includeNodes ){
+ includedEle = true;
+
+ var pos = _p.position;
+ x = pos.x;
+ y = pos.y;
+ var w = ele.outerWidth();
+ var halfW = w/2;
+ var h = ele.outerHeight();
+ var halfH = h/2;
+
+ // handle node dimensions
+ /////////////////////////
+
+ ex1 = x - halfW;
+ ex2 = x + halfW;
+ ey1 = y - halfH;
+ ey2 = y + halfH;
+
+ x1 = ex1 < x1 ? ex1 : x1;
+ x2 = ex2 > x2 ? ex2 : x2;
+ y1 = ey1 < y1 ? ey1 : y1;
+ y2 = ey2 > y2 ? ey2 : y2;
+
+ } else if( ele.isEdge() && includeEdges ){
+ includedEle = true;
+
+ var n1pos = ele._private.source._private.position;
+ var n2pos = ele._private.target._private.position;
+
+ // handle edge dimensions (rough box estimate)
+ //////////////////////////////////////////////
+
+ var rstyle = ele._private.rstyle || {};
+
+ ex1 = n1pos.x;
+ ex2 = n2pos.x;
+ ey1 = n1pos.y;
+ ey2 = n2pos.y;
+
+ if( ex1 > ex2 ){
+ var temp = ex1;
+ ex1 = ex2;
+ ex2 = temp;
+ }
+
+ if( ey1 > ey2 ){
+ var temp = ey1;
+ ey1 = ey2;
+ ey2 = temp;
+ }
+
+ x1 = ex1 < x1 ? ex1 : x1;
+ x2 = ex2 > x2 ? ex2 : x2;
+ y1 = ey1 < y1 ? ey1 : y1;
+ y2 = ey2 > y2 ? ey2 : y2;
+
+ // handle points along edge (sanity check)
+ //////////////////////////////////////////
+
+ if( styleEnabled ){
+ var bpts = rstyle.bezierPts || [];
+
+ var w = ele._private.style['width'].pxValue;
+ var wHalf = w/2;
+
+ for( var j = 0; j < bpts.length; j++ ){
+ var bpt = bpts[j];
+
+ ex1 = bpt.x - wHalf;
+ ex2 = bpt.x + wHalf;
+ ey1 = bpt.y - wHalf;
+ ey2 = bpt.y + wHalf;
+
+ x1 = ex1 < x1 ? ex1 : x1;
+ x2 = ex2 > x2 ? ex2 : x2;
+ y1 = ey1 < y1 ? ey1 : y1;
+ y2 = ey2 > y2 ? ey2 : y2;
+ }
+ }
+
+ } // edges
+
+ // handle label dimensions
+ //////////////////////////
+
+ if( styleEnabled ){
+
+ var style = ele._private.style;
+ var rstyle = ele._private.rstyle;
+ var label = style['content'].strValue;
+ var fontSize = style['font-size'];
+ var halign = style['text-halign'];
+ var valign = style['text-valign'];
+ var labelWidth = rstyle.labelWidth;
+ var labelHeight = rstyle.labelHeight;
+ var labelX = rstyle.labelX;
+ var labelY = rstyle.labelY;
+
+ if( includedEle && includeLabels && label && fontSize && labelHeight != null && labelWidth != null && labelX != null && labelY != null && halign && valign ){
+ var lh = labelHeight;
+ var lw = labelWidth;
+ var lx1, lx2, ly1, ly2;
+
+ if( ele.isEdge() ){
+ lx1 = labelX - lw/2;
+ lx2 = labelX + lw/2;
+ ly1 = labelY - lh/2;
+ ly2 = labelY + lh/2;
+ } else {
+ switch( halign.value ){
+ case 'left':
+ lx1 = labelX - lw;
+ lx2 = labelX;
+ break;
+
+ case 'center':
+ lx1 = labelX - lw/2;
+ lx2 = labelX + lw/2;
+ break;
+
+ case 'right':
+ lx1 = labelX;
+ lx2 = labelX + lw;
+ break;
+ }
+
+ switch( valign.value ){
+ case 'top':
+ ly1 = labelY - lh;
+ ly2 = labelY;
+ break;
+
+ case 'center':
+ ly1 = labelY - lh/2;
+ ly2 = labelY + lh/2;
+ break;
+
+ case 'bottom':
+ ly1 = labelY;
+ ly2 = labelY + lh;
+ break;
+ }
+ }
+
+ x1 = lx1 < x1 ? lx1 : x1;
+ x2 = lx2 > x2 ? lx2 : x2;
+ y1 = ly1 < y1 ? ly1 : y1;
+ y2 = ly2 > y2 ? ly2 : y2;
+ }
+ } // style enabled
+ } // for
+
+ return {
+ x1: x1,
+ x2: x2,
+ y1: y1,
+ y2: y2,
+ w: x2 - x1,
+ h: y2 - y1
+ };
+ }
+ });
+
+ // in case some users want to be explicit
+ $$.elesfn.modelPosition = $$.elesfn.position;
+ $$.elesfn.modelPositions = $$.elesfn.positions;
+
+})( cytoscape );
+
+;(function( $$ ){ 'use strict';
+
+ // Regular degree functions (works on single element)
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ function defineDegreeFunction(callback){
+ return function( includeLoops ){
+ var self = this;
+
+ if( includeLoops === undefined ){
+ includeLoops = true;
+ }
+
+ if( self.length === 0 ){ return; }
+
+ if( self.isNode() && !self.removed() ){
+ var degree = 0;
+ var node = self[0];
+ var connectedEdges = node._private.edges;
+
+ for( var i = 0; i < connectedEdges.length; i++ ){
+ var edge = connectedEdges[i];
+
+ if( !includeLoops && edge.isLoop() ){
+ continue;
+ }
+
+ degree += callback( node, edge );
+ }
+
+ return degree;
+ } else {
+ return;
+ }
+ };
+ }
+
+ $$.fn.eles({
+ degree: defineDegreeFunction(function(node, edge){
+ if( edge.source().same( edge.target() ) ){
+ return 2;
+ } else {
+ return 1;
+ }
+ }),
+
+ indegree: defineDegreeFunction(function(node, edge){
+ if( edge.target().same(node) ){
+ return 1;
+ } else {
+ return 0;
+ }
+ }),
+
+ outdegree: defineDegreeFunction(function(node, edge){
+ if( edge.source().same(node) ){
+ return 1;
+ } else {
+ return 0;
+ }
+ })
+ });
+
+
+ // Collection degree stats
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ function defineDegreeBoundsFunction(degreeFn, callback){
+ return function( includeLoops ){
+ var ret;
+ var nodes = this.nodes();
+
+ for( var i = 0; i < nodes.length; i++ ){
+ var ele = nodes[i];
+ var degree = ele[degreeFn]( includeLoops );
+ if( degree !== undefined && (ret === undefined || callback(degree, ret)) ){
+ ret = degree;
+ }
+ }
+
+ return ret;
+ };
+ }
+
+ $$.fn.eles({
+ minDegree: defineDegreeBoundsFunction('degree', function(degree, min){
+ return degree < min;
+ }),
+
+ maxDegree: defineDegreeBoundsFunction('degree', function(degree, max){
+ return degree > max;
+ }),
+
+ minIndegree: defineDegreeBoundsFunction('indegree', function(degree, min){
+ return degree < min;
+ }),
+
+ maxIndegree: defineDegreeBoundsFunction('indegree', function(degree, max){
+ return degree > max;
+ }),
+
+ minOutdegree: defineDegreeBoundsFunction('outdegree', function(degree, min){
+ return degree < min;
+ }),
+
+ maxOutdegree: defineDegreeBoundsFunction('outdegree', function(degree, max){
+ return degree > max;
+ })
+ });
+
+ $$.fn.eles({
+ totalDegree: function( includeLoops ){
+ var total = 0;
+ var nodes = this.nodes();
+
+ for( var i = 0; i < nodes.length; i++ ){
+ total += nodes[i].degree( includeLoops );
+ }
+
+ return total;
+ }
+ });
+
+})( cytoscape );
+
+
+;(function($$){ 'use strict';
+
+ // Functions for binding & triggering events
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ $$.fn.eles({
+ on: $$.define.on(), // .on( events [, selector] [, data], handler)
+ one: $$.define.on({ unbindSelfOnTrigger: true }),
+ once: $$.define.on({ unbindAllBindersOnTrigger: true }),
+ off: $$.define.off(), // .off( events [, selector] [, handler] )
+ trigger: $$.define.trigger(), // .trigger( events [, extraParams] )
+
+ rtrigger: function(event, extraParams){ // for internal use only
+ if( this.length === 0 ){ return; } // empty collections don't need to notify anything
+
+ // notify renderer
+ this.cy().notify({
+ type: event,
+ collection: this
+ });
+
+ this.trigger(event, extraParams);
+ return this;
+ }
+ });
+
+ // aliases for those folks who like old stuff:
+ $$.elesfn.bind = $$.elesfn.on;
+ $$.elesfn.unbind = $$.elesfn.off;
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.eles({
+ nodes: function( selector ){
+ return this.filter(function(i, element){
+ return element.isNode();
+ }).filter(selector);
+ },
+
+ edges: function( selector ){
+ return this.filter(function(i, element){
+ return element.isEdge();
+ }).filter(selector);
+ },
+
+ filter: function( filter ){
+ var cy = this._private.cy;
+
+ if( $$.is.fn(filter) ){
+ var elements = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+
+ if( filter.apply(ele, [i, ele]) ){
+ elements.push(ele);
+ }
+ }
+
+ return new $$.Collection(cy, elements);
+
+ } else if( $$.is.string(filter) || $$.is.elementOrCollection(filter) ){
+ return new $$.Selector(filter).filter(this);
+
+ } else if( filter === undefined ){
+ return this;
+ }
+
+ return new $$.Collection( cy ); // if not handled by above, give 'em an empty collection
+ },
+
+ not: function( toRemove ){
+ var cy = this._private.cy;
+
+ if( !toRemove ){
+ return this;
+ } else {
+
+ if( $$.is.string( toRemove ) ){
+ toRemove = this.filter( toRemove );
+ }
+
+ var elements = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ var element = this[i];
+
+ var remove = toRemove._private.ids[ element.id() ];
+ if( !remove ){
+ elements.push( element );
+ }
+ }
+
+ return new $$.Collection( cy, elements );
+ }
+
+ },
+
+ intersect: function( other ){
+ var cy = this._private.cy;
+
+ // if a selector is specified, then filter by it instead
+ if( $$.is.string(other) ){
+ var selector = other;
+ return this.filter( selector );
+ }
+
+ var elements = [];
+ var col1 = this;
+ var col2 = other;
+ var col1Smaller = this.length < other.length;
+ // var ids1 = col1Smaller ? col1._private.ids : col2._private.ids;
+ var ids2 = col1Smaller ? col2._private.ids : col1._private.ids;
+ var col = col1Smaller ? col1 : col2;
+
+ for( var i = 0; i < col.length; i++ ){
+ var id = col[i]._private.data.id;
+ var ele = ids2[ id ];
+
+ if( ele ){
+ elements.push( ele );
+ }
+ }
+
+ return new $$.Collection( cy, elements );
+ },
+
+ add: function( toAdd ){
+ var cy = this._private.cy;
+
+ if( !toAdd ){
+ return this;
+ }
+
+ if( $$.is.string(toAdd) ){
+ var selector = toAdd;
+ toAdd = cy.elements(selector);
+ }
+
+ var elements = [];
+
+ for( var i = 0; i < this.length; i++ ){
+ elements.push( this[i] );
+ }
+
+ for( var i = 0; i < toAdd.length; i++ ){
+
+ var add = !this._private.ids[ toAdd[i].id() ];
+ if( add ){
+ elements.push( toAdd[i] );
+ }
+ }
+
+ return new $$.Collection(cy, elements);
+ },
+
+ // in place merge on calling collection
+ merge: function( toAdd ){
+ var _p = this._private;
+ var cy = _p.cy;
+
+ if( !toAdd ){
+ return this;
+ }
+
+ if( $$.is.string(toAdd) ){
+ var selector = toAdd;
+ toAdd = cy.elements(selector);
+ }
+
+ for( var i = 0; i < toAdd.length; i++ ){
+ var toAddEle = toAdd[i];
+ var id = toAddEle.id();
+ var add = !_p.ids[ id ];
+
+ if( add ){
+ var index = this.length++;
+
+ this[ index ] = toAddEle;
+ _p.ids[ id ] = toAddEle;
+ _p.indexes[ id ] = index;
+ }
+ }
+
+ return this; // chaining
+ },
+
+ // remove single ele in place in calling collection
+ unmergeOne: function( ele ){
+ ele = ele[0];
+
+ var _p = this._private;
+ var id = ele.id();
+ var i = _p.indexes[ id ];
+
+ if( i == null ){
+ return this; // no need to remove
+ }
+
+ // remove ele
+ this[i] = undefined;
+ _p.ids[ id ] = undefined;
+ _p.indexes[ id ] = undefined;
+
+ var unmergedLastEle = i === this.length - 1;
+
+ // replace empty spot with last ele in collection
+ if( this.length > 1 && !unmergedLastEle ){
+ var lastEleI = this.length - 1;
+ var lastEle = this[ lastEleI ];
+
+ this[ lastEleI ] = undefined;
+ this[i] = lastEle;
+ _p.indexes[ lastEle.id() ] = i;
+ }
+
+ // the collection is now 1 ele smaller
+ this.length--;
+
+ return this;
+ },
+
+ // remove eles in place on calling collection
+ unmerge: function( toRemove ){
+ var cy = this._private.cy;
+
+ if( !toRemove ){
+ return this;
+ }
+
+ if( $$.is.string(toRemove) ){
+ var selector = toRemove;
+ toRemove = cy.elements(selector);
+ }
+
+ for( var i = 0; i < toRemove.length; i++ ){
+ this.unmergeOne( toRemove[i] );
+ }
+
+ return this; // chaining
+ },
+
+ map: function( mapFn, thisArg ){
+ var arr = [];
+ var eles = this;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var ret = mapFn.apply( thisArg, [ele, i, eles] );
+
+ arr.push( ret );
+ }
+
+ return arr;
+ },
+
+ stdFilter: function( fn, thisArg ){
+ var filterEles = [];
+ var eles = this;
+ var cy = this._private.cy;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var include = fn.apply( thisArg, [ele, i, eles] );
+
+ if( include ){
+ filterEles.push( ele );
+ }
+ }
+
+ return new $$.Collection( cy, filterEles );
+ },
+
+ max: function( valFn, thisArg ){
+ var max = -Infinity;
+ var maxEle;
+ var eles = this;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var val = valFn.apply( thisArg, [ ele, i, eles ] );
+
+ if( val > max ){
+ max = val;
+ maxEle = ele;
+ }
+ }
+
+ return {
+ value: max,
+ ele: maxEle
+ };
+ },
+
+ min: function( valFn, thisArg ){
+ var min = Infinity;
+ var minEle;
+ var eles = this;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var val = valFn.apply( thisArg, [ ele, i, eles ] );
+
+ if( val < min ){
+ min = val;
+ minEle = ele;
+ }
+ }
+
+ return {
+ value: min,
+ ele: minEle
+ };
+ }
+ });
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ $$.fn.eles({
+ isNode: function(){
+ return this.group() === 'nodes';
+ },
+
+ isEdge: function(){
+ return this.group() === 'edges';
+ },
+
+ isLoop: function(){
+ return this.isEdge() && this.source().id() === this.target().id();
+ },
+
+ isSimple: function(){
+ return this.isEdge() && this.source().id() !== this.target().id();
+ },
+
+ group: function(){
+ var ele = this[0];
+
+ if( ele ){
+ return ele._private.group;
+ }
+ }
+ });
+
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // Functions for iterating over collections
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ $$.fn.eles({
+ each: function(fn){
+ if( $$.is.fn(fn) ){
+ for(var i = 0; i < this.length; i++){
+ var ele = this[i];
+ var ret = fn.apply( ele, [ i, ele ] );
+
+ if( ret === false ){ break; } // exit each early on return false
+ }
+ }
+ return this;
+ },
+
+ forEach: function(fn, thisArg){
+ if( $$.is.fn(fn) ){
+
+ for(var i = 0; i < this.length; i++){
+ var ele = this[i];
+ var ret = fn.apply( thisArg, [ ele, i, this ] );
+
+ if( ret === false ){ break; } // exit each early on return false
+ }
+ }
+
+ return this;
+ },
+
+ toArray: function(){
+ var array = [];
+
+ for(var i = 0; i < this.length; i++){
+ array.push( this[i] );
+ }
+
+ return array;
+ },
+
+ slice: function(start, end){
+ var array = [];
+ var thisSize = this.length;
+
+ if( end == null ){
+ end = thisSize;
+ }
+
+ if( start == null ){
+ start = 0;
+ }
+
+ if( start < 0 ){
+ start = thisSize + start;
+ }
+
+ if( end < 0 ){
+ end = thisSize + end;
+ }
+
+ for(var i = start; i >= 0 && i < end && i < thisSize; i++){
+ array.push( this[i] );
+ }
+
+ return new $$.Collection(this.cy(), array);
+ },
+
+ size: function(){
+ return this.length;
+ },
+
+ eq: function(i){
+ return this[i] || new $$.Collection( this.cy() );
+ },
+
+ first: function(){
+ return this[0] || new $$.Collection( this.cy() );
+ },
+
+ last: function(){
+ return this[ this.length - 1 ] || new $$.Collection( this.cy() );
+ },
+
+ empty: function(){
+ return this.length === 0;
+ },
+
+ nonempty: function(){
+ return !this.empty();
+ },
+
+ sort: function( sortFn ){
+ if( !$$.is.fn( sortFn ) ){
+ return this;
+ }
+
+ var cy = this.cy();
+ var sorted = this.toArray().sort( sortFn );
+
+ return new $$.Collection(cy, sorted);
+ },
+
+ sortByZIndex: function(){
+ return this.sort( $$.Collection.zIndexSort );
+ },
+
+ zDepth: function(){
+ var ele = this[0];
+ if( !ele ){ return undefined; }
+
+ var _p = ele._private;
+ var group = _p.group;
+
+ if( group === 'nodes' ){
+ return _p.data.parent ? ele.parents().size() : 0;
+ } else {
+ var src = _p.source;
+ var tgt = _p.target;
+ var srcDepth = src._private.data.parent ? src.parents().size() : 0;
+ var tgtDepth = tgt._private.data.parent ? tgt.parents().size() : 0;
+
+ return Math.max( srcDepth - 1, tgtDepth - 1, 0 ) + 0.5; // depth of deepest parent and just a bit above
+ }
+ }
+ });
+
+ $$.Collection.zIndexSort = function(a, b){
+ var cy = a.cy();
+ var a_p = a._private;
+ var b_p = b._private;
+ var zDiff = a_p.style['z-index'].value - b_p.style['z-index'].value;
+ var depthA = 0;
+ var depthB = 0;
+ var hasCompoundNodes = cy.hasCompoundNodes();
+ var aIsNode = a_p.group === 'nodes';
+ var aIsEdge = a_p.group === 'edges';
+ var bIsNode = b_p.group === 'nodes';
+ var bIsEdge = b_p.group === 'edges';
+
+ // no need to calculate element depth if there is no compound node
+ if( hasCompoundNodes ){
+ depthA = a.zDepth();
+ depthB = b.zDepth();
+ }
+
+ var depthDiff = depthA - depthB;
+ var sameDepth = depthDiff === 0;
+
+ if( sameDepth ){
+
+ if( aIsNode && bIsEdge ){
+ return 1; // 'a' is a node, it should be drawn later
+
+ } else if( aIsEdge && bIsNode ){
+ return -1; // 'a' is an edge, it should be drawn first
+
+ } else { // both nodes or both edges
+ if( zDiff === 0 ){ // same z-index => compare indices in the core (order added to graph w/ last on top)
+ return a_p.index - b_p.index;
+ } else {
+ return zDiff;
+ }
+ }
+
+ // elements on different level
+ } else {
+ return depthDiff; // deeper element should be drawn later
+ }
+
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // Functions for layouts on nodes
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+ $$.fn.eles({
+
+ // using standard layout options, apply position function (w/ or w/o animation)
+ layoutPositions: function( layout, options, fn ){
+ var nodes = this.nodes();
+ var cy = this.cy();
+
+ layout.trigger({ type: 'layoutstart', layout: layout });
+
+ if( options.animate ){
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+ var lastNode = i === nodes.length - 1;
+
+ var newPos = fn.call( node, i, node );
+ var pos = node.position();
+
+ if( !$$.is.number(pos.x) || !$$.is.number(pos.y) ){
+ node.silentPosition({ x: 0, y: 0 });
+ }
+
+ node.animate({
+ position: newPos
+ }, {
+ duration: options.animationDuration,
+ step: !lastNode ? undefined : function(){
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+ },
+ complete: !lastNode ? undefined : function(){
+ if( options.zoom != null ){
+ cy.zoom( options.zoom );
+ }
+
+ if( options.pan ){
+ cy.pan( options.pan );
+ }
+
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+
+ layout.one('layoutstop', options.stop);
+ layout.trigger({ type: 'layoutstop', layout: layout });
+ }
+ });
+ }
+
+ layout.one('layoutready', options.ready);
+ layout.trigger({ type: 'layoutready', layout: layout });
+ } else {
+ nodes.positions( fn );
+
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+
+ if( options.zoom != null ){
+ cy.zoom( options.zoom );
+ }
+
+ if( options.pan ){
+ cy.pan( options.pan );
+ }
+
+ layout.one('layoutready', options.ready);
+ layout.trigger({ type: 'layoutready', layout: layout });
+
+ layout.one('layoutstop', options.stop);
+ layout.trigger({ type: 'layoutstop', layout: layout });
+ }
+
+ return this; // chaining
+ },
+
+ layout: function( options ){
+ var cy = this.cy();
+
+ cy.layout( $$.util.extend({}, options, {
+ eles: this
+ }) );
+
+ return this;
+ },
+
+ makeLayout: function( options ){
+ var cy = this.cy();
+
+ return cy.makeLayout( $$.util.extend({}, options, {
+ eles: this
+ }) );
+ }
+
+ });
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.eles({
+
+ // fully updates (recalculates) the style for the elements
+ updateStyle: function( notifyRenderer ){
+ var cy = this._private.cy;
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ if( cy._private.batchingStyle ){
+ var bEles = cy._private.batchStyleEles;
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+
+ if( !bEles.ids[ ele._private.id ] ){
+ bEles.push( ele );
+ }
+ }
+
+ return this; // chaining and exit early when batching
+ }
+
+ var style = cy.style();
+ notifyRenderer = notifyRenderer || notifyRenderer === undefined ? true : false;
+
+ style.apply( this );
+
+ var updatedCompounds = this.updateCompoundBounds();
+ var toNotify = updatedCompounds.length > 0 ? this.add( updatedCompounds ) : this;
+
+ if( notifyRenderer ){
+ toNotify.rtrigger('style'); // let renderer know we changed style
+ } else {
+ toNotify.trigger('style'); // just fire the event
+ }
+ return this; // chaining
+ },
+
+ // just update the mappers in the elements' styles; cheaper than eles.updateStyle()
+ updateMappers: function( notifyRenderer ){
+ var cy = this._private.cy;
+ var style = cy.style();
+ notifyRenderer = notifyRenderer || notifyRenderer === undefined ? true : false;
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ style.updateMappers( this );
+
+ var updatedCompounds = this.updateCompoundBounds();
+ var toNotify = updatedCompounds.length > 0 ? this.add( updatedCompounds ) : this;
+
+ if( notifyRenderer ){
+ toNotify.rtrigger('style'); // let renderer know we changed style
+ } else {
+ toNotify.trigger('style'); // just fire the event
+ }
+ return this; // chaining
+ },
+
+ // get the specified css property as a rendered value (i.e. on-screen value)
+ // or get the whole rendered style if no property specified (NB doesn't allow setting)
+ renderedCss: function( property ){
+ var cy = this.cy();
+ if( !cy.styleEnabled() ){ return this; }
+
+ var ele = this[0];
+
+ if( ele ){
+ var renstyle = ele.cy().style().getRenderedStyle( ele );
+
+ if( property === undefined ){
+ return renstyle;
+ } else {
+ return renstyle[ property ];
+ }
+ }
+ },
+
+ // read the calculated css style of the element or override the style (via a bypass)
+ css: function( name, value ){
+ var cy = this.cy();
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ var updateTransitions = false;
+ var style = cy.style();
+
+ if( $$.is.plainObject(name) ){ // then extend the bypass
+ var props = name;
+ style.applyBypass( this, props, updateTransitions );
+
+ var updatedCompounds = this.updateCompoundBounds();
+ var toNotify = updatedCompounds.length > 0 ? this.add( updatedCompounds ) : this;
+ toNotify.rtrigger('style'); // let the renderer know we've updated style
+
+ } else if( $$.is.string(name) ){
+
+ if( value === undefined ){ // then get the property from the style
+ var ele = this[0];
+
+ if( ele ){
+ return ele._private.style[ name ].strValue;
+ } else { // empty collection => can't get any value
+ return;
+ }
+
+ } else { // then set the bypass with the property value
+ style.applyBypass( this, name, value, updateTransitions );
+
+ var updatedCompounds = this.updateCompoundBounds();
+ var toNotify = updatedCompounds.length > 0 ? this.add( updatedCompounds ) : this;
+ toNotify.rtrigger('style'); // let the renderer know we've updated style
+ }
+
+ } else if( name === undefined ){
+ var ele = this[0];
+
+ if( ele ){
+ return style.getRawStyle( ele );
+ } else { // empty collection => can't get any value
+ return;
+ }
+ }
+
+ return this; // chaining
+ },
+
+ removeCss: function( names ){
+ var cy = this.cy();
+
+ if( !cy.styleEnabled() ){ return this; }
+
+ var updateTransitions = false;
+ var style = cy.style();
+ var eles = this;
+
+ if( names === undefined ){
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ style.removeAllBypasses( ele, updateTransitions );
+ }
+ } else {
+ names = names.split(/\s+/);
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ style.removeBypasses( ele, names, updateTransitions );
+ }
+ }
+
+ var updatedCompounds = this.updateCompoundBounds();
+ var toNotify = updatedCompounds.length > 0 ? this.add( updatedCompounds ) : this;
+ toNotify.rtrigger('style'); // let the renderer know we've updated style
+
+ return this; // chaining
+ },
+
+ show: function(){
+ this.css('display', 'element');
+ return this; // chaining
+ },
+
+ hide: function(){
+ this.css('display', 'none');
+ return this; // chaining
+ },
+
+ visible: function(){
+ var cy = this.cy();
+ if( !cy.styleEnabled() ){ return true; }
+
+ var ele = this[0];
+ var hasCompoundNodes = cy.hasCompoundNodes();
+
+ if( ele ){
+ var style = ele._private.style;
+
+ if(
+ style['visibility'].value !== 'visible'
+ || style['display'].value !== 'element'
+ ){
+ return false;
+ }
+
+ if( ele._private.group === 'nodes' ){
+ if( !hasCompoundNodes ){ return true; }
+
+ var parents = ele._private.data.parent ? ele.parents() : null;
+
+ if( parents ){
+ for( var i = 0; i < parents.length; i++ ){
+ var parent = parents[i];
+ var pStyle = parent._private.style;
+ var pVis = pStyle['visibility'].value;
+ var pDis = pStyle['display'].value;
+
+ if( pVis !== 'visible' || pDis !== 'element' ){
+ return false;
+ }
+ }
+ }
+
+ return true;
+ } else {
+ var src = ele._private.source;
+ var tgt = ele._private.target;
+
+ return src.visible() && tgt.visible();
+ }
+
+ }
+ },
+
+ hidden: function(){
+ var ele = this[0];
+
+ if( ele ){
+ return !ele.visible();
+ }
+ },
+
+ effectiveOpacity: function(){
+ var cy = this.cy();
+ if( !cy.styleEnabled() ){ return 1; }
+
+ var hasCompoundNodes = cy.hasCompoundNodes();
+ var ele = this[0];
+
+ if( ele ){
+ var _p = ele._private;
+ var parentOpacity = _p.style.opacity.value;
+
+ if( !hasCompoundNodes ){ return parentOpacity; }
+
+ var parents = !_p.data.parent ? null : ele.parents();
+
+ if( parents ){
+ for( var i = 0; i < parents.length; i++ ){
+ var parent = parents[i];
+ var opacity = parent._private.style.opacity.value;
+
+ parentOpacity = opacity * parentOpacity;
+ }
+ }
+
+ return parentOpacity;
+ }
+ },
+
+ transparent: function(){
+ var ele = this[0];
+ var hasCompoundNodes = ele.cy().hasCompoundNodes();
+
+ if( ele ){
+ if( !hasCompoundNodes ){
+ return ele._private.style.opacity === 0;
+ } else {
+ return ele.effectiveOpacity() === 0;
+ }
+ }
+ },
+
+ isFullAutoParent: function(){
+ var cy = this.cy();
+ if( !cy.styleEnabled() ){ return false; }
+
+ var ele = this[0];
+
+ if( ele ){
+ var autoW = ele._private.style['width'].value === 'auto';
+ var autoH = ele._private.style['height'].value === 'auto';
+
+ return ele.isParent() && autoW && autoH;
+ }
+ }
+
+ });
+
+
+ $$.elesfn.style = $$.elesfn.css;
+ $$.elesfn.renderedStyle = $$.elesfn.renderedCss;
+ $$.elesfn.removeStyle = $$.elesfn.removeCss;
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ // Collection functions that toggle a boolean value
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+ function defineSwitchFunction(params){
+ return function(){
+ var args = arguments;
+
+ // e.g. cy.nodes().select( data, handler )
+ if( args.length === 2 ){
+ var data = args[0];
+ var handler = args[1];
+ this.bind( params.event, data, handler );
+ }
+
+ // e.g. cy.nodes().select( handler )
+ else if( args.length === 1 ){
+ var handler = args[0];
+ this.bind( params.event, handler );
+ }
+
+ // e.g. cy.nodes().select()
+ else if( args.length === 0 ){
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var able = !params.ableField || ele._private[params.ableField];
+
+ if( params.overrideAble ){
+ var overrideAble = params.overrideAble(ele);
+
+ if( overrideAble !== undefined ){
+ able = overrideAble;
+
+ if( !overrideAble ){ return this; } // to save cycles assume not able for all on override
+ }
+ }
+
+ if( able ){
+ ele._private[params.field] = params.value;
+ }
+ }
+ this.updateStyle(); // change of state => possible change of style
+ this.trigger( params.event );
+ }
+
+ return this;
+ };
+ }
+
+ function defineSwitchSet( params ){
+ $$.elesfn[ params.field ] = function(){
+ var ele = this[0];
+
+ if( ele ){
+ if( params.overrideField ){
+ var val = params.overrideField(ele);
+
+ if( val !== undefined ){
+ return val;
+ }
+ }
+
+ return ele._private[ params.field ];
+ }
+ };
+
+ $$.elesfn[ params.on ] = defineSwitchFunction({
+ event: params.on,
+ field: params.field,
+ ableField: params.ableField,
+ overrideAble: params.overrideAble,
+ value: true
+ });
+
+ $$.elesfn[ params.off ] = defineSwitchFunction({
+ event: params.off,
+ field: params.field,
+ ableField: params.ableField,
+ overrideAble: params.overrideAble,
+ value: false
+ });
+ }
+
+ defineSwitchSet({
+ field: 'locked',
+ overrideField: function(ele){
+ return ele.cy().autolock() ? true : undefined;
+ },
+ on: 'lock',
+ off: 'unlock'
+ });
+
+ defineSwitchSet({
+ field: 'grabbable',
+ overrideField: function(ele){
+ return ele.cy().autoungrabify() ? false : undefined;
+ },
+ on: 'grabify',
+ off: 'ungrabify'
+ });
+
+ defineSwitchSet({
+ field: 'selected',
+ ableField: 'selectable',
+ overrideAble: function(ele){
+ return ele.cy().autounselectify() ? false : undefined;
+ },
+ on: 'select',
+ off: 'unselect'
+ });
+
+ defineSwitchSet({
+ field: 'selectable',
+ overrideField: function(ele){
+ return ele.cy().autounselectify() ? false : undefined;
+ },
+ on: 'selectify',
+ off: 'unselectify'
+ });
+
+ $$.elesfn.grabbed = function(){
+ var ele = this[0];
+ if( ele ){
+ return ele._private.grabbed;
+ }
+ };
+
+ defineSwitchSet({
+ field: 'active',
+ on: 'activate',
+ off: 'unactivate'
+ });
+
+ $$.elesfn.inactive = function(){
+ var ele = this[0];
+ if( ele ){
+ return !ele._private.active;
+ }
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // DAG functions
+ //////////////////////////
+
+ $$.fn.eles({
+ // get the root nodes in the DAG
+ roots: function( selector ){
+ var eles = this;
+ var roots = [];
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ if( !ele.isNode() ){
+ continue;
+ }
+
+ var hasEdgesPointingIn = ele.connectedEdges(function(){
+ return this.data('target') === ele.id() && this.data('source') !== ele.id();
+ }).length > 0;
+
+ if( !hasEdgesPointingIn ){
+ roots.push( ele );
+ }
+ }
+
+ return new $$.Collection( this._private.cy, roots, { unique: true } ).filter( selector );
+ },
+
+ // get the leaf nodes in the DAG
+ leaves: function( selector ){
+ var eles = this;
+ var leaves = [];
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ if( !ele.isNode() ){
+ continue;
+ }
+
+ var hasEdgesPointingOut = ele.connectedEdges(function(){
+ return this.data('source') === ele.id() && this.data('target') !== ele.id();
+ }).length > 0;
+
+ if( !hasEdgesPointingOut ){
+ leaves.push( ele );
+ }
+ }
+
+ return new $$.Collection( this._private.cy, leaves, { unique: true } ).filter( selector );
+ },
+
+ // normally called children in graph theory
+ // these nodes =edges=> outgoing nodes
+ outgoers: function( selector ){
+ var eles = this;
+ var oEles = [];
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var eleId = ele.id();
+
+ if( !ele.isNode() ){ continue; }
+
+ var edges = ele._private.edges;
+ for( var j = 0; j < edges.length; j++ ){
+ var edge = edges[j];
+ var srcId = edge._private.data.source;
+ var tgtId = edge._private.data.target;
+
+ if( srcId === eleId && tgtId !== eleId ){
+ oEles.push( edge );
+ oEles.push( edge.target()[0] );
+ }
+ }
+ }
+
+ return new $$.Collection( this._private.cy, oEles, { unique: true } ).filter( selector );
+ },
+
+ // aka DAG descendants
+ successors: function( selector ){
+ var eles = this;
+ var sEles = [];
+ var sElesIds = {};
+
+ for(;;){
+ var outgoers = eles.outgoers();
+
+ if( outgoers.length === 0 ){ break; } // done if no outgoers left
+
+ var newOutgoers = false;
+ for( var i = 0; i < outgoers.length; i++ ){
+ var outgoer = outgoers[i];
+ var outgoerId = outgoer.id();
+
+ if( !sElesIds[ outgoerId ] ){
+ sElesIds[ outgoerId ] = true;
+ sEles.push( outgoer );
+ newOutgoers = true;
+ }
+ }
+
+ if( !newOutgoers ){ break; } // done if touched all outgoers already
+
+ eles = outgoers;
+ }
+
+ return new $$.Collection( this._private.cy, sEles, { unique: true } ).filter( selector );
+ },
+
+ // normally called parents in graph theory
+ // these nodes <=edges= incoming nodes
+ incomers: function( selector ){
+ var eles = this;
+ var oEles = [];
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var eleId = ele.id();
+
+ if( !ele.isNode() ){ continue; }
+
+ var edges = ele._private.edges;
+ for( var j = 0; j < edges.length; j++ ){
+ var edge = edges[j];
+ var srcId = edge._private.data.source;
+ var tgtId = edge._private.data.target;
+
+ if( tgtId === eleId && srcId !== eleId ){
+ oEles.push( edge );
+ oEles.push( edge.source()[0] );
+ }
+ }
+ }
+
+ return new $$.Collection( this._private.cy, oEles, { unique: true } ).filter( selector );
+ },
+
+ // aka DAG ancestors
+ predecessors: function( selector ){
+ var eles = this;
+ var pEles = [];
+ var pElesIds = {};
+
+ for(;;){
+ var incomers = eles.incomers();
+
+ if( incomers.length === 0 ){ break; } // done if no incomers left
+
+ var newIncomers = false;
+ for( var i = 0; i < incomers.length; i++ ){
+ var incomer = incomers[i];
+ var incomerId = incomer.id();
+
+ if( !pElesIds[ incomerId ] ){
+ pElesIds[ incomerId ] = true;
+ pEles.push( incomer );
+ newIncomers = true;
+ }
+ }
+
+ if( !newIncomers ){ break; } // done if touched all incomers already
+
+ eles = incomers;
+ }
+
+ return new $$.Collection( this._private.cy, pEles, { unique: true } ).filter( selector );
+ }
+ });
+
+
+ // Neighbourhood functions
+ //////////////////////////
+
+ $$.fn.eles({
+ neighborhood: function(selector){
+ var elements = [];
+ var cy = this._private.cy;
+ var nodes = this.nodes();
+
+ for( var i = 0; i < nodes.length; i++ ){ // for all nodes
+ var node = nodes[i];
+ var connectedEdges = node.connectedEdges();
+
+ // for each connected edge, add the edge and the other node
+ for( var j = 0; j < connectedEdges.length; j++ ){
+ var edge = connectedEdges[j];
+ var otherNode = edge.connectedNodes().not(node);
+
+ // need check in case of loop
+ if( otherNode.length > 0 ){
+ elements.push( otherNode[0] ); // add node 1 hop away
+ }
+
+ // add connected edge
+ elements.push( edge[0] );
+ }
+
+ }
+
+ return ( new $$.Collection( cy, elements, { unique: true } ) ).filter( selector );
+ },
+
+ closedNeighborhood: function(selector){
+ return this.neighborhood().add( this ).filter( selector );
+ },
+
+ openNeighborhood: function(selector){
+ return this.neighborhood( selector );
+ }
+ });
+
+
+ // Edge functions
+ /////////////////
+
+ $$.fn.eles({
+ source: function( selector ){
+ var ele = this[0];
+ var src;
+
+ if( ele ){
+ src = ele._private.source;
+ }
+
+ return src && selector ? src.filter( selector ) : src;
+ },
+
+ target: function( selector ){
+ var ele = this[0];
+ var tgt;
+
+ if( ele ){
+ tgt = ele._private.target;
+ }
+
+ return tgt && selector ? tgt.filter( selector ) : tgt;
+ },
+
+ sources: defineSourceFunction({
+ attr: 'source'
+ }),
+
+ targets: defineSourceFunction({
+ attr: 'target'
+ })
+ });
+
+ function defineSourceFunction( params ){
+ return function( selector ){
+ var sources = [];
+ var cy = this._private.cy;
+
+ for( var i = 0; i < this.length; i++ ){
+ var ele = this[i];
+ var src = ele._private[ params.attr ];
+
+ if( src ){
+ sources.push( src );
+ }
+ }
+
+ return new $$.Collection( cy, sources, { unique: true } ).filter( selector );
+ };
+ }
+
+ $$.fn.eles({
+ edgesWith: defineEdgesWithFunction(),
+
+ edgesTo: defineEdgesWithFunction({
+ thisIs: 'source'
+ })
+ });
+
+ function defineEdgesWithFunction( params ){
+
+ return function(otherNodes){
+ var elements = [];
+ var cy = this._private.cy;
+ var p = params || {};
+
+ // get elements if a selector is specified
+ if( $$.is.string(otherNodes) ){
+ otherNodes = cy.$( otherNodes );
+ }
+
+ var edges = otherNodes.connectedEdges();
+ var thisIds = this._private.ids;
+
+ for( var i = 0; i < edges.length; i++ ){
+ var edge = edges[i];
+ var foundId;
+ var edgeData = edge._private.data;
+
+ if( p.thisIs ){
+ var idToFind = edgeData[ p.thisIs ];
+ foundId = thisIds[ idToFind ];
+ } else {
+ foundId = thisIds[ edgeData.source ] || thisIds[ edgeData.target ];
+ }
+
+ if( foundId ){
+ elements.push( edge );
+ }
+ }
+
+ return new $$.Collection( cy, elements, { unique: true } );
+ };
+ }
+
+ $$.fn.eles({
+ connectedEdges: function( selector ){
+ var retEles = [];
+ var cy = this._private.cy;
+
+ var eles = this;
+ for( var i = 0; i < eles.length; i++ ){
+ var node = eles[i];
+ if( !node.isNode() ){ continue; }
+
+ var edges = node._private.edges;
+
+ for( var j = 0; j < edges.length; j++ ){
+ var edge = edges[j];
+ retEles.push( edge );
+ }
+ }
+
+ return new $$.Collection( cy, retEles, { unique: true } ).filter( selector );
+ },
+
+ connectedNodes: function( selector ){
+ var retEles = [];
+ var cy = this._private.cy;
+
+ var eles = this;
+ for( var i = 0; i < eles.length; i++ ){
+ var edge = eles[i];
+ if( !edge.isEdge() ){ continue; }
+
+ retEles.push( edge.source()[0] );
+ retEles.push( edge.target()[0] );
+ }
+
+ return new $$.Collection( cy, retEles, { unique: true } ).filter( selector );
+ },
+
+ parallelEdges: defineParallelEdgesFunction(),
+
+ codirectedEdges: defineParallelEdgesFunction({
+ codirected: true
+ })
+ });
+
+ function defineParallelEdgesFunction(params){
+ var defaults = {
+ codirected: false
+ };
+ params = $$.util.extend({}, defaults, params);
+
+ return function( selector ){
+ var cy = this._private.cy;
+ var elements = [];
+ var edges = this.edges();
+ var p = params;
+
+ // look at all the edges in the collection
+ for( var i = 0; i < edges.length; i++ ){
+ var edge1 = edges[i];
+ var src1 = edge1.source()[0];
+ var srcid1 = src1.id();
+ var tgt1 = edge1.target()[0];
+ var tgtid1 = tgt1.id();
+ var srcEdges1 = src1._private.edges;
+
+ // look at edges connected to the src node of this edge
+ for( var j = 0; j < srcEdges1.length; j++ ){
+ var edge2 = srcEdges1[j];
+ var edge2data = edge2._private.data;
+ var tgtid2 = edge2data.target;
+ var srcid2 = edge2data.source;
+
+ var codirected = tgtid2 === tgtid1 && srcid2 === srcid1;
+ var oppdirected = srcid1 === tgtid2 && tgtid1 === srcid2;
+
+ if( (p.codirected && codirected) || (!p.codirected && (codirected || oppdirected)) ){
+ elements.push( edge2 );
+ }
+ }
+ }
+
+ return new $$.Collection( cy, elements, { unique: true } ).filter( selector );
+ };
+
+ }
+
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ $$.fn.eles({
+
+ fit: function(){},
+ center: function(){}
+
+ });
+
+})( cytoscape );
+;(function ($$) {
+ "use strict";
+
+ /* Min and Max heap predefaults */
+
+ $$.Minheap = function (cy, eles, valueFn) {
+ return new $$.Heap(cy, eles, $$.Heap.minHeapComparator, valueFn);
+ };
+
+ $$.Maxheap = function (cy, eles, valueFn) {
+ return new $$.Heap(cy, eles, $$.Heap.maxHeapComparator, valueFn);
+ };
+
+ $$.Heap = function (cy, eles, comparator, valueFn) {
+ if (typeof comparator === "undefined" || typeof eles === "undefined") {
+ return;
+ }
+
+ if (typeof valueFn === "undefined") {
+ valueFn = $$.Heap.idFn;
+ }
+
+ var sourceHeap = [],
+ pointers = {},
+ elements = [],
+ i = 0,
+ id,
+ heap,
+ elesLen;
+
+ eles = this.getArgumentAsCollection(eles, cy);
+ elesLen = eles.length;
+
+ for (i = 0; i < elesLen; i += 1) {
+ sourceHeap.push(valueFn.call(cy, eles[i], i, eles));
+
+ id = eles[i].id();
+
+ if (pointers.hasOwnProperty(id)) {
+ throw "ERROR: Multiple items with the same id found: " + id;
+ }
+
+ pointers[id] = i;
+ elements.push(id);
+ }
+
+ this._private = {
+ cy: cy,
+ heap: sourceHeap,
+ pointers: pointers,
+ elements: elements,
+ comparator: comparator,
+ extractor: valueFn,
+ length: elesLen
+ };
+
+ for (i = Math.floor(elesLen / 2); i >= 0; i -= 1) {
+ heap = this.heapify(i);
+ }
+
+ return heap;
+ };
+
+ /* static methods */
+ $$.Heap.idFn = function (node) {
+ return node.id();
+ };
+
+ $$.Heap.minHeapComparator = function (a, b) {
+ return a >= b;
+ };
+
+ $$.Heap.maxHeapComparator = function (a, b) {
+ return a <= b;
+ };
+
+ $$.fn.heap = function( fnMap, options ){
+ for( var name in fnMap ){
+ var fn = fnMap[name];
+ $$.Heap.prototype[ name ] = fn;
+ }
+ };
+
+ $$.heapfn = $$.Heap.prototype; // short alias
+
+ /* object methods */
+ $$.heapfn.size = function () {
+ return this._private.length;
+ };
+
+ $$.heapfn.getArgumentAsCollection = function (eles, cy) {
+ var result;
+ if(typeof cy === "undefined") {
+ cy = this._private.cy;
+ }
+
+ if ($$.is.elementOrCollection(eles)) {
+ result = eles;
+
+ } else {
+ var resultArray = [],
+ sourceEles = [].concat.apply([], [eles]);
+
+ for (var i = 0; i < sourceEles.length; i++) {
+ var id = sourceEles[i],
+ ele = cy.getElementById(id);
+
+ if(ele.length > 0) {
+ resultArray.push(ele);
+ }
+ }
+
+ result = new $$.Collection(cy, resultArray);
+ }
+
+ return result;
+ };
+
+ $$.heapfn.isHeap = function () {
+ var array = this._private.heap,
+ arrlen = array.length,
+ i,
+ left,
+ right,
+ lCheck,
+ rCheck,
+ comparator = this._private.comparator;
+
+ for (i = 0; i < arrlen; i += 1) {
+ left = 2 * i + 1;
+ right = left + 1;
+ lCheck = left < arrlen ? comparator(array[left], array[i]) : true;
+ rCheck = right < arrlen ? comparator(array[right], array[i]) : true;
+
+ if (!lCheck || !rCheck) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ $$.heapfn.heapSwap = function (i, j) {
+ var heap = this._private.heap,
+ pointers = this._private.pointers,
+ elements = this._private.elements,
+ swapValue = heap[i],
+ swapElems = elements[i],
+ idI = elements[i],
+ idJ = elements[j];
+
+ heap[i] = heap[j];
+ elements[i] = elements[j];
+
+ pointers[idI] = j;
+ pointers[idJ] = i;
+
+ heap[j] = swapValue;
+ elements[j] = swapElems;
+ };
+
+ $$.heapfn.heapify = function (i, rootToLeaf) {
+ var treeLen = 0,
+ condHeap = false,
+ array,
+ current,
+ left,
+ right,
+ best,
+ comparator,
+ parent;
+
+ if (typeof rootToLeaf === "undefined") {
+ rootToLeaf = true;
+ }
+
+ array = this._private.heap;
+ treeLen = array.length;
+ comparator = this._private.comparator;
+ current = i;
+
+ while (!condHeap) {
+
+ if (rootToLeaf) {
+ left = 2 * current + 1;
+ right = left + 1;
+ best = current;
+
+ if (left < treeLen && !comparator(array[left], array[best])) {
+ best = left;
+ }
+
+ if (right < treeLen && !comparator(array[right], array[best])) {
+ best = right;
+ }
+
+ condHeap = best === current;
+
+ if (!condHeap) {
+ this.heapSwap(best, current);
+ current = best;
+ }
+
+ } else {
+ parent = Math.floor((current - 1) / 2);
+ best = current;
+ condHeap = parent < 0 || comparator(array[best], array[parent]);
+
+ if (!condHeap) {
+ this.heapSwap(best, parent);
+ current = parent;
+ }
+ }
+
+ } // while
+ };
+
+ /* collectionOrElement */
+ $$.heapfn.insert = function (eles) {
+ var elements = this.getArgumentAsCollection(eles),
+ elsize = elements.length,
+ element,
+ elindex,
+ elvalue,
+ elid,
+ i;
+
+ for (i = 0; i < elsize; i += 1) {
+ element = elements[i];
+ elindex = this._private.heap.length;
+ elvalue = this._private.extractor(element);
+ elid = element.id();
+
+ if (this._private.pointers.hasOwnProperty(elid)) {
+ throw "ERROR: Multiple items with the same id found: " + elid;
+ }
+
+ this._private.heap.push(elvalue);
+ this._private.elements.push(elid);
+ this._private.pointers[elid] = elindex;
+ this.heapify(elindex, false);
+ }
+
+ this._private.length = this._private.heap.length;
+ };
+
+ $$.heapfn.getValueById = function (elementId) {
+ if (this._private.pointers.hasOwnProperty(elementId)) {
+ var elementIndex = this._private.pointers[elementId];
+
+ return this._private.heap[elementIndex];
+ }
+ };
+
+ $$.heapfn.contains = function (eles) {
+ var elements = this.getArgumentAsCollection(eles);
+
+ for (var i = 0; i < elements.length; i += 1) {
+ var elementId = elements[i].id();
+
+ if(!this._private.pointers.hasOwnProperty(elementId)) {
+ return false;
+ }
+ }
+
+ return true;
+ };
+
+ $$.heapfn.top = function () {
+ if (this._private.length > 0) {
+
+ return {
+ value: this._private.heap[0],
+ id: this._private.elements[0]
+ };
+
+ }
+ };
+
+ $$.heapfn.pop = function () {
+ if (this._private.length > 0) {
+ var top = this.top(),
+ lastIndex = this._private.length - 1,
+ removeCandidate,
+ removeValue,
+ remId;
+
+ this.heapSwap(0, lastIndex);
+
+ removeCandidate = this._private.elements[lastIndex];
+ removeValue = this._private.heap[lastIndex];
+ remId = removeCandidate;
+
+ this._private.heap.pop();
+ this._private.elements.pop();
+ this._private.length = this._private.heap.length;
+ this._private.pointers[remId] = undefined;
+
+ this.heapify(0);
+ return top;
+ }
+ };
+
+ $$.heapfn.findDirectionHeapify = function (index) {
+ var parent = Math.floor((index - 1) / 2),
+ array = this._private.heap,
+ condHeap = parent < 0 || this._private.comparator(array[index], array[parent]);
+
+ this.heapify(index, condHeap);
+ };
+
+ /* edit is a new value or function */
+ // only values in heap are updated. elements themselves are not!
+ $$.heapfn.edit = function (eles, edit) {
+ var elements = this.getArgumentAsCollection(eles);
+
+ for (var i = 0; i < elements.length; i += 1) {
+ var elementId = elements[i].id(),
+ elementIndex = this._private.pointers[elementId],
+ elementValue = this._private.heap[elementIndex];
+
+ if ($$.is.number(edit)) {
+ this._private.heap[elementIndex] = edit;
+
+ } else if ($$.is.fn(edit)) {
+ this._private.heap[elementIndex] = edit.call(this._private.cy, elementValue, elementIndex);
+ }
+
+ this.findDirectionHeapify(elementIndex);
+ }
+ };
+
+ $$.heapfn.delete = function (eles) {
+ var elements = this.getArgumentAsCollection(eles);
+
+ for (var i = 0; i < elements.length; i += 1) {
+ var elementId = elements[i].id(),
+ elementIndex = this._private.pointers[elementId],
+ lastIndex = this._private.length - 1,
+ removeCandidate,
+ removeValue,
+ remId;
+
+ if (elementIndex !== lastIndex) {
+ this.heapSwap(elementIndex, lastIndex);
+ }
+
+ removeCandidate = this._private.elements[lastIndex];
+ removeValue = this._private.heap[lastIndex];
+ remId = removeCandidate;
+
+ this._private.heap.pop();
+ this._private.elements.pop();
+ this._private.length = this._private.heap.length;
+ this._private.pointers[remId] = undefined;
+
+ this.findDirectionHeapify(elementIndex);
+ }
+
+ return removeValue;
+ };
+
+})(cytoscape);
+/*
+ The canvas renderer was written by Yue Dong.
+
+ Modifications tracked on Github.
+*/
+
+(function($$) { 'use strict';
+
+ function CanvasRenderer(options) {
+
+ CanvasRenderer.CANVAS_LAYERS = 5;
+ CanvasRenderer.SELECT_BOX = 0;
+ CanvasRenderer.DRAG = 2;
+ CanvasRenderer.NODE = 4;
+ CanvasRenderer.TEXTURE_BUFFER = 0;
+ CanvasRenderer.BUFFER_COUNT = 2;
+
+ this.options = options;
+
+ this.data = {
+
+ select: [undefined, undefined, undefined, undefined, 0], // Coordinates for selection box, plus enabled flag
+ renderer: this, cy: options.cy, container: options.cy.container(),
+
+ canvases: new Array(CanvasRenderer.CANVAS_LAYERS),
+ contexts: new Array(CanvasRenderer.CANVAS_LAYERS),
+ canvasNeedsRedraw: new Array(CanvasRenderer.CANVAS_LAYERS),
+
+ bufferCanvases: new Array(CanvasRenderer.BUFFER_COUNT),
+ bufferContexts: new Array(CanvasRenderer.CANVAS_LAYERS)
+
+ };
+
+ //--Pointer-related data
+ this.hoverData = {down: null, last: null,
+ downTime: null, triggerMode: null,
+ dragging: false,
+ initialPan: [null, null], capture: false};
+
+ this.timeoutData = {panTimeout: null};
+
+ this.dragData = {possibleDragElements: []};
+
+ this.touchData = {start: null, capture: false,
+ // These 3 fields related to tap, taphold events
+ startPosition: [null, null, null, null, null, null],
+ singleTouchStartTime: null,
+ singleTouchMoved: true,
+
+
+ now: [null, null, null, null, null, null],
+ earlier: [null, null, null, null, null, null] };
+ //--
+
+ //--Wheel-related data
+ this.zoomData = {freeToZoom: false, lastPointerX: null};
+ //--
+
+ this.redraws = 0;
+ this.showFps = options.showFps;
+
+ this.bindings = [];
+
+ this.data.canvasContainer = document.createElement('div');
+ var containerStyle = this.data.canvasContainer.style;
+ containerStyle.position = 'absolute';
+ containerStyle.zIndex = '0';
+ containerStyle.overflow = 'hidden';
+
+ this.data.container.appendChild( this.data.canvasContainer );
+
+ for (var i = 0; i < CanvasRenderer.CANVAS_LAYERS; i++) {
+ this.data.canvases[i] = document.createElement('canvas');
+ this.data.contexts[i] = this.data.canvases[i].getContext('2d');
+ this.data.canvases[i].style.position = 'absolute';
+ this.data.canvases[i].setAttribute('data-id', 'layer' + i);
+ this.data.canvases[i].style.zIndex = String(CanvasRenderer.CANVAS_LAYERS - i);
+ this.data.canvasContainer.appendChild(this.data.canvases[i]);
+
+ this.data.canvasNeedsRedraw[i] = false;
+ }
+ this.data.topCanvas = this.data.canvases[0];
+
+ this.data.canvases[CanvasRenderer.NODE].setAttribute('data-id', 'layer' + CanvasRenderer.NODE + '-node');
+ this.data.canvases[CanvasRenderer.SELECT_BOX].setAttribute('data-id', 'layer' + CanvasRenderer.SELECT_BOX + '-selectbox');
+ this.data.canvases[CanvasRenderer.DRAG].setAttribute('data-id', 'layer' + CanvasRenderer.DRAG + '-drag');
+
+ for (var i = 0; i < CanvasRenderer.BUFFER_COUNT; i++) {
+ this.data.bufferCanvases[i] = document.createElement('canvas');
+ this.data.bufferContexts[i] = this.data.bufferCanvases[i].getContext('2d');
+ this.data.bufferCanvases[i].style.position = 'absolute';
+ this.data.bufferCanvases[i].setAttribute('data-id', 'buffer' + i);
+ this.data.bufferCanvases[i].style.zIndex = String(-i - 1);
+ this.data.bufferCanvases[i].style.visibility = 'hidden';
+ //this.data.canvasContainer.appendChild(this.data.bufferCanvases[i]);
+ }
+
+ this.hideEdgesOnViewport = options.hideEdgesOnViewport;
+ this.hideLabelsOnViewport = options.hideLabelsOnViewport;
+ this.textureOnViewport = options.textureOnViewport;
+ this.wheelSensitivity = options.wheelSensitivity;
+ this.motionBlurEnabled = options.motionBlur === undefined ? true : options.motionBlur; // on by default
+ this.forcedPixelRatio = options.pixelRatio;
+ this.motionBlur = true; // for initial kick off
+
+ this.load();
+ }
+
+ CanvasRenderer.panOrBoxSelectDelay = 400;
+ CanvasRenderer.isTouch = $$.is.touch();
+
+ // whether to use Path2D caching for drawing
+ var pathsImpld = typeof Path2D !== 'undefined';
+ CanvasRenderer.usePaths = function(){
+ return pathsImpld;
+ };
+
+ CanvasRenderer.prototype.notify = function(params) {
+ var types;
+
+ if( $$.is.array( params.type ) ){
+ types = params.type;
+
+ } else {
+ types = [ params.type ];
+ }
+
+ for( var i = 0; i < types.length; i++ ){
+ var type = types[i];
+
+ switch( type ){
+ case 'destroy':
+ this.destroy();
+ return;
+
+ case 'add':
+ case 'remove':
+ case 'load':
+ this.updateNodesCache();
+ this.updateEdgesCache();
+ break;
+
+ case 'viewport':
+ this.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+ break;
+
+ case 'style':
+ this.updateCachedZSortedEles();
+ break;
+ }
+
+ if( type === 'load' || type === 'resize' ){
+ this.invalidateContainerClientCoordsCache();
+ this.matchCanvasSize(this.data.container);
+ }
+ } // for
+
+ this.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ this.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ this.redraw();
+ };
+
+ CanvasRenderer.prototype.destroy = function(){
+ this.destroyed = true;
+
+ for( var i = 0; i < this.bindings.length; i++ ){
+ var binding = this.bindings[i];
+ var b = binding;
+
+ b.target.removeEventListener(b.event, b.handler, b.useCapture);
+ }
+ };
+
+
+
+ // copy the math functions into the renderer prototype
+ // unfortunately these functions are used interspersed t/o the code
+ // and this makes sure things work just in case a ref was missed in refactoring
+ // TODO remove this eventually
+ for( var fnName in $$.math ){
+ CanvasRenderer.prototype[ fnName ] = $$.math[ fnName ];
+ }
+
+
+ $$('renderer', 'canvas', CanvasRenderer);
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+ var rendFunc = CanvasRenderer.prototype;
+ var arrowShapes = CanvasRenderer.arrowShapes = {};
+
+ CanvasRenderer.arrowShapeHeight = 0.3;
+
+ // Contract for arrow shapes:
+ // 0, 0 is arrow tip
+ // (0, 1) is direction towards node
+ // (1, 0) is right
+ //
+ // functional api:
+ // collide: check x, y in shape
+ // roughCollide: called before collide, no false negatives
+ // draw: draw
+ // spacing: dist(arrowTip, nodeBoundary)
+ // gap: dist(edgeTip, nodeBoundary), edgeTip may != arrowTip
+
+ var bbCollide = function(x, y, centerX, centerY, width, height, direction, padding){
+ var x1 = centerX - width/2;
+ var x2 = centerX + width/2;
+ var y1 = centerY - height/2;
+ var y2 = centerY + height/2;
+
+ return (x1 <= x && x <= x2) && (y1 <= y && y <= y2);
+ };
+
+ var transform = function(x, y, size, angle, translation){
+ angle = -angle; // b/c of notation used in arrow draw fn
+
+ var xRotated = x * Math.cos(angle) - y * Math.sin(angle);
+ var yRotated = x * Math.sin(angle) + y * Math.cos(angle);
+
+ var xScaled = xRotated * size;
+ var yScaled = yRotated * size;
+
+ var xTranslated = xScaled + translation.x;
+ var yTranslated = yScaled + translation.y;
+
+ return {
+ x: xTranslated,
+ y: yTranslated
+ };
+ };
+
+ arrowShapes['arrow'] = {
+ _points: [
+ -0.15, -0.3,
+ 0, 0,
+ 0.15, -0.3
+ ],
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var points = arrowShapes['arrow']._points;
+
+// console.log("collide(): " + direction);
+
+ return $$.math.pointInsidePolygon(
+ x, y, points, centerX, centerY, width, height, direction, padding);
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var points = arrowShapes['arrow']._points;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ var pt = transform( points[i * 2], points[i * 2 + 1], size, angle, translation );
+
+ context.lineTo(pt.x, pt.y);
+ }
+
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue * 2;
+ }
+ };
+
+ arrowShapes['triangle'] = arrowShapes['arrow'];
+
+ arrowShapes['triangle-backcurve'] = {
+ _ctrlPt: [ 0, -0.15 ],
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var points = arrowShapes['triangle']._points;
+
+// console.log("collide(): " + direction);
+
+ return $$.math.pointInsidePolygon(
+ x, y, points, centerX, centerY, width, height, direction, padding);
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var points = arrowShapes['triangle']._points;
+ var firstPt;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ var pt = transform( points[i * 2], points[i * 2 + 1], size, angle, translation );
+
+ if( i === 0 ){
+ firstPt = pt;
+ }
+
+ context.lineTo(pt.x, pt.y);
+ }
+
+ var ctrlPt = this._ctrlPt;
+ var ctrlPtTrans = transform( ctrlPt[0], ctrlPt[1], size, angle, translation );
+
+ context.quadraticCurveTo( ctrlPtTrans.x, ctrlPtTrans.y, firstPt.x, firstPt.y );
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue * 2;
+ }
+ };
+
+
+ arrowShapes['triangle-tee'] = {
+ _points: [
+ -0.15, -0.3,
+ 0, 0,
+ 0.15, -0.3,
+ -0.15, -0.3
+ ],
+
+ _pointsTee: [
+ -0.15, -0.4,
+ -0.15, -0.5,
+ 0.15, -0.5,
+ 0.15, -0.4
+ ],
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var triPts = arrowShapes['triangle-tee']._points;
+ var teePts = arrowShapes['triangle-tee']._pointsTee;
+
+ var inside = $$.math.pointInsidePolygon(x, y, teePts, centerX, centerY, width, height, direction, padding)
+ || $$.math.pointInsidePolygon(x, y, triPts, centerX, centerY, width, height, direction, padding);
+
+ return inside;
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var triPts = arrowShapes['triangle-tee']._points;
+ for (var i = 0; i < triPts.length / 2; i++){
+ var pt = transform( triPts[ i * 2 ], triPts[ i * 2 + 1 ], size, angle, translation );
+
+ context.lineTo( pt.x, pt.y );
+ }
+
+ var teePts = arrowShapes['triangle-tee']._pointsTee;
+ var firstTeePt = transform( teePts[0], teePts[1], size, angle, translation );
+ context.moveTo( firstTeePt.x, firstTeePt.y );
+
+ for (var i = 0; i < teePts.length / 2; i++){
+ var pt = transform( teePts[ i * 2 ], teePts[ i * 2 + 1 ], size, angle, translation );
+
+ context.lineTo( pt.x, pt.y );
+ }
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue * 2;
+ }
+ };
+
+ arrowShapes['half-triangle-overshot'] = {
+ _points: [
+ 0, -0.25,
+ -0.5, -0.25,
+ 0.5, 0.25
+ ],
+
+ leavePathOpen: true,
+ matchEdgeWidth: true,
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var points = this._points;
+
+// console.log("collide(): " + direction);
+
+ return $$.math.pointInsidePolygon(
+ x, y, points, centerX, centerY, width, height, direction, padding);
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var points = this._points;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ var pt = transform( points[i * 2], points[i * 2 + 1], size, angle, translation );
+
+ context.lineTo(pt.x, pt.y);
+ }
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue * 2;
+ }
+ };
+
+ arrowShapes['none'] = {
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ return false;
+ },
+
+ roughCollide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ return false;
+ },
+
+ draw: function(context) {
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return 0;
+ }
+ };
+
+ arrowShapes['circle'] = {
+ _baseRadius: 0.15,
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ // Transform x, y to get non-rotated ellipse
+
+ if (width != height) {
+ var aspectRatio = (height + padding) / (width + padding);
+ y /= aspectRatio;
+ centerY /= aspectRatio;
+
+ return (Math.pow(centerX - x, 2)
+ + Math.pow(centerY - y, 2) <= Math.pow((width + padding)
+ * arrowShapes['circle']._baseRadius, 2));
+ } else {
+ return (Math.pow(centerX - x, 2)
+ + Math.pow(centerY - y, 2) <= Math.pow((width + padding)
+ * arrowShapes['circle']._baseRadius, 2));
+ }
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ context.arc(translation.x, translation.y, arrowShapes['circle']._baseRadius * size, 0, Math.PI * 2, false);
+ },
+
+ spacing: function(edge) {
+ return rendFunc.getArrowWidth(edge._private.style['width'].pxValue)
+ * arrowShapes['circle']._baseRadius;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue * 2;
+ }
+ };
+
+ arrowShapes['inhibitor'] = {
+ _points: [
+ -0.25, 0,
+ -0.25, -0.1,
+ 0.25, -0.1,
+ 0.25, 0
+ ],
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var points = arrowShapes['inhibitor']._points;
+
+ return $$.math.pointInsidePolygon(
+ x, y, points, centerX, centerY, width, height, direction, padding);
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var points = arrowShapes['inhibitor']._points;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ var pt = transform( points[i * 2], points[i * 2 + 1], size, angle, translation );
+
+ context.lineTo(pt.x, pt.y);
+ }
+ },
+
+ spacing: function(edge) {
+ return 1;
+ },
+
+ gap: function(edge) {
+ return 1;
+ }
+ };
+
+ arrowShapes['tee'] = arrowShapes['inhibitor'];
+
+ arrowShapes['square'] = {
+ _points: [
+ -0.15, 0.00,
+ 0.15, 0.00,
+ 0.15, -0.3,
+ -0.15, -0.3
+ ],
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var points = arrowShapes['square']._points;
+
+ return $$.math.pointInsidePolygon(
+ x, y, points, centerX, centerY, width, height, direction, padding);
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var points = arrowShapes['square']._points;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ var pt = transform( points[i * 2], points[i * 2 + 1], size, angle, translation );
+
+ context.lineTo(pt.x, pt.y);
+ }
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue * 2;
+ }
+ };
+
+ arrowShapes['diamond'] = {
+ _points: [
+ -0.15, -0.15,
+ 0, -0.3,
+ 0.15, -0.15,
+ 0, 0
+ ],
+
+ collide: function(x, y, centerX, centerY, width, height, direction, padding) {
+ var points = arrowShapes['diamond']._points;
+
+ return $$.math.pointInsidePolygon(
+ x, y, points, centerX, centerY, width, height, direction, padding);
+ },
+
+ roughCollide: bbCollide,
+
+ draw: function(context, size, angle, translation) {
+ var points = arrowShapes['diamond']._points;
+
+ for (var i = 0; i < points.length / 2; i++) {
+ var pt = transform( points[i * 2], points[i * 2 + 1], size, angle, translation );
+
+ context.lineTo(pt.x, pt.y);
+ }
+ },
+
+ spacing: function(edge) {
+ return 0;
+ },
+
+ gap: function(edge) {
+ return edge._private.style['width'].pxValue;
+ }
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ CanvasRenderer.prototype.getCachedNodes = function() {
+ var data = this.data; var cy = this.data.cy;
+
+ if (data.cache == null) {
+ data.cache = {};
+ }
+
+ if (data.cache.cachedNodes == null) {
+ data.cache.cachedNodes = cy.nodes();
+ }
+
+ return data.cache.cachedNodes;
+ };
+
+ CanvasRenderer.prototype.updateNodesCache = function() {
+ var data = this.data; var cy = this.data.cy;
+
+ if (data.cache == null) {
+ data.cache = {};
+ }
+
+ data.cache.cachedNodes = cy.nodes();
+ };
+
+ CanvasRenderer.prototype.getCachedEdges = function() {
+ var data = this.data; var cy = this.data.cy;
+
+ if (data.cache == null) {
+ data.cache = {};
+ }
+
+ if (data.cache.cachedEdges == null) {
+ data.cache.cachedEdges = cy.edges();
+ }
+
+ return data.cache.cachedEdges;
+ };
+
+ CanvasRenderer.prototype.updateEdgesCache = function() {
+ var data = this.data; var cy = this.data.cy;
+
+ if (data.cache == null) {
+ data.cache = {};
+ }
+
+ data.cache.cachedEdges = cy.edges();
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ // Project mouse
+ CanvasRenderer.prototype.projectIntoViewport = function(clientX, clientY) {
+ var offsets = this.findContainerClientCoords();
+ var offsetLeft = offsets[0];
+ var offsetTop = offsets[1];
+
+ var x = clientX - offsetLeft;
+ var y = clientY - offsetTop;
+
+ x -= this.data.cy.pan().x; y -= this.data.cy.pan().y; x /= this.data.cy.zoom(); y /= this.data.cy.zoom();
+ return [x, y];
+ };
+
+ CanvasRenderer.prototype.findContainerClientCoords = function() {
+ var container = this.data.container;
+
+ var bb = this.containerBB = this.containerBB || container.getBoundingClientRect();
+
+ return [bb.left, bb.top, bb.right - bb.left, bb.bottom - bb.top];
+ };
+
+ CanvasRenderer.prototype.invalidateContainerClientCoordsCache = function(){
+ this.containerBB = null;
+ };
+
+ // Find nearest element
+ CanvasRenderer.prototype.findNearestElement = function(x, y, visibleElementsOnly){
+ var self = this;
+ var eles = this.getCachedZSortedEles();
+ var near = [];
+ var isTouch = CanvasRenderer.isTouch;
+ var zoom = this.data.cy.zoom();
+ var hasCompounds = this.data.cy.hasCompoundNodes();
+ var edgeThreshold = (isTouch ? 256 : 32) / zoom;
+ var nodeThreshold = (isTouch ? 16 : 0) / zoom;
+
+ function checkNode(node){
+ var width = node.outerWidth();
+ var height = node.outerHeight();
+ var hw = width/2;
+ var hh = height/2;
+ var pos = node._private.position;
+
+ if(
+ pos.x - hw <= x && x <= pos.x + hw // bb check x
+ &&
+ pos.y - hh <= y && y <= pos.y + hh // bb check y
+ ){
+ var visible = !visibleElementsOnly || ( node.visible() && !node.transparent() );
+
+ // exit early if invisible edge and must be visible
+ if( visibleElementsOnly && !visible ){
+ return;
+ }
+
+ var shape = CanvasRenderer.nodeShapes[ self.getNodeShape(node) ];
+ var borderWO = node._private.style['border-width'].pxValue / 2;
+
+ if(
+ shape.checkPoint(x, y, borderWO, width + nodeThreshold, height + nodeThreshold, pos.x, pos.y)
+ ){
+ near.push( node );
+ }
+
+ }
+ }
+
+ function checkEdge(edge){
+ var rs = edge._private.rscratch;
+ var style = edge._private.style;
+ var width = style['width'].pxValue;
+ var widthSq = width * width;
+ var width2 = width * 2;
+ var src = edge._private.source;
+ var tgt = edge._private.target;
+ var inEdgeBB = false;
+
+ // exit early if invisible edge and must be visible
+ var passedVisibilityCheck;
+ var passesVisibilityCheck = function(){
+ if( passedVisibilityCheck !== undefined ){
+ return passedVisibilityCheck;
+ }
+
+ if( !visibleElementsOnly ){
+ passedVisibilityCheck = true;
+ return true;
+ }
+
+ var visible = edge.visible() && !edge.transparent();
+ if( visible ){
+ passedVisibilityCheck = true;
+ return true;
+ }
+
+ passedVisibilityCheck = false;
+ return false;
+ };
+
+ if (rs.edgeType === 'self') {
+ if(
+ (
+ (inEdgeBB = $$.math.inBezierVicinity(x, y, rs.startX, rs.startY, rs.cp2ax, rs.cp2ay, rs.selfEdgeMidX, rs.selfEdgeMidY, widthSq))
+ && passesVisibilityCheck() &&
+ ( widthSq + edgeThreshold > $$.math.sqDistanceToQuadraticBezier(x, y, rs.startX, rs.startY, rs.cp2ax, rs.cp2ay, rs.selfEdgeMidX, rs.selfEdgeMidY) )
+ )
+ ||
+ (
+ (inEdgeBB = $$.math.inBezierVicinity(x, y, rs.selfEdgeMidX, rs.selfEdgeMidY, rs.cp2cx, rs.cp2cy, rs.endX, rs.endY, widthSq))
+ && passesVisibilityCheck() &&
+ ( widthSq + edgeThreshold > $$.math.sqDistanceToQuadraticBezier(x, y, rs.selfEdgeMidX, rs.selfEdgeMidY, rs.cp2cx, rs.cp2cy, rs.endX, rs.endY) )
+ )
+ ){
+ near.push( edge );
+ }
+
+ } else if (rs.edgeType === 'haystack') {
+ var radius = style['haystack-radius'].value;
+ var halfRadius = radius/2; // b/c have to half width/height
+
+ var tgtPos = tgt._private.position;
+ var tgtW = tgt.width();
+ var tgtH = tgt.height();
+ var srcPos = src._private.position;
+ var srcW = src.width();
+ var srcH = src.height();
+
+ var startX = srcPos.x + rs.source.x * srcW * halfRadius;
+ var startY = srcPos.y + rs.source.y * srcH * halfRadius;
+ var endX = tgtPos.x + rs.target.x * tgtW * halfRadius;
+ var endY = tgtPos.y + rs.target.y * tgtH * halfRadius;
+
+ if(
+ (inEdgeBB = $$.math.inLineVicinity(x, y, startX, startY, endX, endY, width2))
+ && passesVisibilityCheck() &&
+ widthSq + edgeThreshold > $$.math.sqDistanceToFiniteLine( x, y, startX, startY, endX, endY )
+ ){
+ near.push( edge );
+ }
+
+ } else if (rs.edgeType === 'straight') {
+ if(
+ (inEdgeBB = $$.math.inLineVicinity(x, y, rs.startX, rs.startY, rs.endX, rs.endY, width2))
+ && passesVisibilityCheck() &&
+ widthSq + edgeThreshold > $$.math.sqDistanceToFiniteLine(x, y, rs.startX, rs.startY, rs.endX, rs.endY)
+ ){
+ near.push( edge );
+ }
+
+ } else if (rs.edgeType === 'bezier') {
+ if(
+ (inEdgeBB = $$.math.inBezierVicinity(x, y, rs.startX, rs.startY, rs.cp2x, rs.cp2y, rs.endX, rs.endY, widthSq))
+ && passesVisibilityCheck() &&
+ (widthSq + edgeThreshold > $$.math.sqDistanceToQuadraticBezier(x, y, rs.startX, rs.startY, rs.cp2x, rs.cp2y, rs.endX, rs.endY))
+ ){
+ near.push( edge );
+ }
+ }
+
+ if( inEdgeBB && passesVisibilityCheck() && near.length === 0 || near[near.length - 1] !== edge ){
+ var srcShape = CanvasRenderer.arrowShapes[ style['source-arrow-shape'].value ];
+ var tgtShape = CanvasRenderer.arrowShapes[ style['target-arrow-shape'].value ];
+
+ var src = src || edge._private.source;
+ var tgt = tgt || edge._private.target;
+
+ var tgtPos = tgt._private.position;
+ var srcPos = src._private.position;
+
+ var srcArW = self.getArrowWidth( style['width'].pxValue );
+ var srcArH = self.getArrowHeight( style['width'].pxValue );
+
+ var tgtArW = srcArW;
+ var tgtArH = srcArH;
+
+ if(
+ (
+ srcShape.roughCollide(x, y, rs.arrowStartX, rs.arrowStartY, srcArW, srcArH, [rs.arrowStartX - srcPos.x, rs.arrowStartY - srcPos.y], 0)
+ &&
+ srcShape.collide(x, y, rs.arrowStartX, rs.arrowStartY, srcArW, srcArH, [rs.arrowStartX - srcPos.x, rs.arrowStartY - srcPos.y], 0)
+ )
+ ||
+ (
+ tgtShape.roughCollide(x, y, rs.arrowEndX, rs.arrowEndY, tgtArW, tgtArH, [rs.arrowEndX - tgtPos.x, rs.arrowEndY - tgtPos.y], 0)
+ &&
+ tgtShape.collide(x, y, rs.arrowEndX, rs.arrowEndY, tgtArW, tgtArH, [rs.arrowEndX - tgtPos.x, rs.arrowEndY - tgtPos.y], 0)
+ )
+ ){
+ near.push( edge );
+ }
+ }
+
+ // for compound graphs, hitting edge may actually want a connected node instead (b/c edge may have greater z-index precedence)
+ if( hasCompounds && near.length > 0 && near[ near.length - 1 ] === edge ){
+ checkNode( src );
+ checkNode( tgt );
+ }
+ }
+
+ for( var i = eles.length - 1; i >= 0; i-- ){ // reverse order for precedence
+ var ele = eles[i];
+
+ if( near.length > 0 ){ break; } // since we check in z-order, first found is top and best result => exit early
+
+ if( ele._private.group === 'nodes' ){
+ checkNode( eles[i] );
+
+ } else { // then edge
+ checkEdge( eles[i] );
+ }
+
+ }
+
+
+ if( near.length > 0 ){
+ return near[ near.length - 1 ];
+ } else {
+ return null;
+ }
+ };
+
+ // 'Give me everything from this box'
+ CanvasRenderer.prototype.getAllInBox = function(x1, y1, x2, y2) {
+ var nodes = this.getCachedNodes();
+ var edges = this.getCachedEdges();
+ var box = [];
+
+ var x1c = Math.min(x1, x2);
+ var x2c = Math.max(x1, x2);
+ var y1c = Math.min(y1, y2);
+ var y2c = Math.max(y1, y2);
+
+ x1 = x1c;
+ x2 = x2c;
+ y1 = y1c;
+ y2 = y2c;
+
+ var heur;
+
+ for ( var i = 0; i < nodes.length; i++ ){
+ var pos = nodes[i]._private.position;
+ var nShape = this.getNodeShape(nodes[i]);
+ var w = this.getNodeWidth(nodes[i]);
+ var h = this.getNodeHeight(nodes[i]);
+ var border = nodes[i]._private.style['border-width'].pxValue / 2;
+ var shapeObj = CanvasRenderer.nodeShapes[ nShape ];
+
+ if ( shapeObj.intersectBox(x1, y1, x2, y2, w, h, pos.x, pos.y, border) ){
+ box.push(nodes[i]);
+ }
+ }
+
+ for ( var i = 0; i < edges.length; i++ ){
+ var rs = edges[i]._private.rscratch;
+
+ if (edges[i]._private.rscratch.edgeType == 'self') {
+ if ((heur = $$.math.boxInBezierVicinity(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.cp2ax, rs.cp2ay,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue))
+ &&
+ (heur == 2 || (heur == 1 && $$.math.checkBezierInBox(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.cp2ax, rs.cp2ay,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue)))
+ ||
+ (heur = $$.math.boxInBezierVicinity(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.cp2cx, rs.cp2cy,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue))
+ &&
+ (heur == 2 || (heur == 1 && $$.math.checkBezierInBox(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.cp2cx, rs.cp2cy,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue)))
+ )
+ { box.push(edges[i]); }
+ }
+
+ if (rs.edgeType == 'bezier' &&
+ (heur = $$.math.boxInBezierVicinity(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.cp2x, rs.cp2y,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue))
+ &&
+ (heur == 2 || (heur == 1 && $$.math.checkBezierInBox(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.cp2x, rs.cp2y,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue))))
+ { box.push(edges[i]); }
+
+ if (rs.edgeType == 'straight' &&
+ (heur = $$.math.boxInBezierVicinity(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.startX * 0.5 + rs.endX * 0.5,
+ rs.startY * 0.5 + rs.endY * 0.5,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue))
+ && /* console.log('test', heur) == undefined && */
+ (heur == 2 || (heur == 1 && $$.math.checkStraightEdgeInBox(x1, y1, x2, y2,
+ rs.startX, rs.startY,
+ rs.endX, rs.endY, edges[i]._private.style['width'].pxValue))))
+ { box.push(edges[i]); }
+
+
+ if (rs.edgeType == 'haystack'){
+ var tgt = edges[i].target()[0];
+ var tgtPos = tgt.position();
+ var src = edges[i].source()[0];
+ var srcPos = src.position();
+
+ var startX = srcPos.x + rs.source.x;
+ var startY = srcPos.y + rs.source.y;
+ var endX = tgtPos.x + rs.target.x;
+ var endY = tgtPos.y + rs.target.y;
+
+ var startInBox = (x1 <= startX && startX <= x2) && (y1 <= startY && startY <= y2);
+ var endInBox = (x1 <= endX && endX <= x2) && (y1 <= endY && endY <= y2);
+
+ if( startInBox && endInBox ){
+ box.push( edges[i] );
+ }
+ }
+
+ }
+
+ return box;
+ };
+
+
+ /**
+ * Returns the width of the given node. If the width is set to auto,
+ * returns the value of the autoWidth field.
+ *
+ * @param node a node
+ * @return {number} width of the node
+ */
+ CanvasRenderer.prototype.getNodeWidth = function(node)
+ {
+ return node.width();
+ };
+
+ /**
+ * Returns the height of the given node. If the height is set to auto,
+ * returns the value of the autoHeight field.
+ *
+ * @param node a node
+ * @return {number} width of the node
+ */
+ CanvasRenderer.prototype.getNodeHeight = function(node)
+ {
+ return node.height();
+ };
+
+ /**
+ * Returns the shape of the given node. If the height or width of the given node
+ * is set to auto, the node is considered to be a compound.
+ *
+ * @param node a node
+ * @return {String} shape of the node
+ */
+ CanvasRenderer.prototype.getNodeShape = function(node)
+ {
+ // TODO only allow rectangle for a compound node?
+// if (node._private.style['width'].value == 'auto' ||
+// node._private.style['height'].value == 'auto')
+// {
+// return 'rectangle';
+// }
+
+ var shape = node._private.style['shape'].value;
+
+ if( node.isParent() ){
+ if( shape === 'rectangle' || shape === 'roundrectangle' ){
+ return shape;
+ } else {
+ return 'rectangle';
+ }
+ }
+
+ return shape;
+ };
+
+
+ CanvasRenderer.prototype.getNodePadding = function(node)
+ {
+ var left = node._private.style['padding-left'].pxValue;
+ var right = node._private.style['padding-right'].pxValue;
+ var top = node._private.style['padding-top'].pxValue;
+ var bottom = node._private.style['padding-bottom'].pxValue;
+
+ if (isNaN(left))
+ {
+ left = 0;
+ }
+
+ if (isNaN(right))
+ {
+ right = 0;
+ }
+
+ if (isNaN(top))
+ {
+ top = 0;
+ }
+
+ if (isNaN(bottom))
+ {
+ bottom = 0;
+ }
+
+ return {left : left,
+ right : right,
+ top : top,
+ bottom : bottom};
+ };
+
+ CanvasRenderer.prototype.zOrderSort = $$.Collection.zIndexSort;
+
+ CanvasRenderer.prototype.updateCachedZSortedEles = function(){
+ this.getCachedZSortedEles( true );
+ };
+
+ CanvasRenderer.prototype.getCachedZSortedEles = function( forceRecalc ){
+ var lastNodes = this.lastZOrderCachedNodes;
+ var lastEdges = this.lastZOrderCachedEdges;
+ var nodes = this.getCachedNodes();
+ var edges = this.getCachedEdges();
+ var eles = [];
+
+ if( forceRecalc || !lastNodes || !lastEdges || lastNodes !== nodes || lastEdges !== edges ){
+ //console.time('cachezorder')
+
+ for( var i = 0; i < nodes.length; i++ ){
+ if( nodes[i].visible() && !nodes[i].transparent() ){
+ eles.push( nodes[i] );
+ }
+ }
+
+ for( var i = 0; i < edges.length; i++ ){
+ if( edges[i].visible() && !edges[i].transparent() ){
+ eles.push( edges[i] );
+ }
+ }
+
+ eles.sort( this.zOrderSort );
+ this.cachedZSortedEles = eles;
+ //console.log('make cache')
+
+ //console.timeEnd('cachezorder')
+ } else {
+ eles = this.cachedZSortedEles;
+ //console.log('read cache')
+ }
+
+ this.lastZOrderCachedNodes = nodes;
+ this.lastZOrderCachedEdges = edges;
+
+ return eles;
+ };
+
+ CanvasRenderer.prototype.projectBezier = function(edge){
+ var qbezierAt = $$.math.qbezierAt;
+ var rs = edge._private.rscratch;
+ var bpts = edge._private.rstyle.bezierPts = [];
+
+ function pushBezierPts(pts){
+ bpts.push({
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.05 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.05 )
+ });
+
+ bpts.push({
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.25 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.25 )
+ });
+
+ bpts.push({
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.4 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.4 )
+ });
+
+ var mid = {
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.5 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.5 )
+ };
+
+ bpts.push( mid );
+
+ if( rs.edgeType === 'self' ){
+ rs.midX = rs.selfEdgeMidX;
+ rs.midY = rs.selfEdgeMidY;
+ } else {
+ rs.midX = mid.x;
+ rs.midY = mid.y;
+ }
+
+ bpts.push({
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.6 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.6 )
+ });
+
+ bpts.push({
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.75 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.75 )
+ });
+
+ bpts.push({
+ x: qbezierAt( pts[0], pts[2], pts[4], 0.95 ),
+ y: qbezierAt( pts[1], pts[3], pts[5], 0.95 )
+ });
+ }
+
+ if( rs.edgeType === 'self' ){
+ pushBezierPts( [rs.startX, rs.startY, rs.cp2ax, rs.cp2ay, rs.selfEdgeMidX, rs.selfEdgeMidY] );
+ pushBezierPts( [rs.selfEdgeMidX, rs.selfEdgeMidY, rs.cp2cx, rs.cp2cy, rs.endX, rs.endY] );
+ } else if( rs.edgeType === 'bezier' ){
+ pushBezierPts( [rs.startX, rs.startY, rs.cp2x, rs.cp2y, rs.endX, rs.endY] );
+ }
+ };
+
+ CanvasRenderer.prototype.recalculateNodeLabelProjection = function( node ){
+ var content = node._private.style['content'].strValue;
+ if( !content || content.match(/^\s+$/) ){ return; }
+
+ var textX, textY;
+ var nodeWidth = node.outerWidth();
+ var nodeHeight = node.outerHeight();
+ var nodePos = node._private.position;
+ var textHalign = node._private.style['text-halign'].strValue;
+ var textValign = node._private.style['text-valign'].strValue;
+ var rs = node._private.rscratch;
+ var rstyle = node._private.rstyle;
+
+ switch( textHalign ){
+ case 'left':
+ textX = nodePos.x - nodeWidth / 2;
+ break;
+
+ case 'right':
+ textX = nodePos.x + nodeWidth / 2;
+ break;
+
+ default: // e.g. center
+ textX = nodePos.x;
+ }
+
+ switch( textValign ){
+ case 'top':
+ textY = nodePos.y - nodeHeight / 2;
+ break;
+
+ case 'bottom':
+ textY = nodePos.y + nodeHeight / 2;
+ break;
+
+ default: // e.g. middle
+ textY = nodePos.y;
+ }
+
+ rs.labelX = textX;
+ rs.labelY = textY;
+ rstyle.labelX = textX;
+ rstyle.labelY = textY;
+
+ this.applyLabelDimensions( node );
+ };
+
+ CanvasRenderer.prototype.recalculateEdgeLabelProjection = function( edge ){
+ var content = edge._private.style['content'].strValue;
+ if( !content || content.match(/^\s+$/) ){ return; }
+
+ var textX, textY;
+ var edgeCenterX, edgeCenterY;
+ var rs = edge._private.rscratch;
+ var rstyle = edge._private.rstyle;
+
+ if (rs.edgeType == 'self') {
+ edgeCenterX = rs.selfEdgeMidX;
+ edgeCenterY = rs.selfEdgeMidY;
+ } else if (rs.edgeType == 'straight') {
+ edgeCenterX = (rs.startX + rs.endX) / 2;
+ edgeCenterY = (rs.startY + rs.endY) / 2;
+ } else if (rs.edgeType == 'bezier') {
+ edgeCenterX = $$.math.qbezierAt( rs.startX, rs.cp2x, rs.endX, 0.5 );
+ edgeCenterY = $$.math.qbezierAt( rs.startY, rs.cp2y, rs.endY, 0.5 );
+ } else if (rs.edgeType == 'haystack') {
+ var srcPos = edge._private.source._private.position;
+ var tgtPos = edge._private.target._private.position;
+
+ edgeCenterX = (srcPos.x + rs.source.x + tgtPos.x + rs.target.x)/2;
+ edgeCenterY = (srcPos.y + rs.source.y + tgtPos.y + rs.target.y)/2;
+ }
+
+ textX = edgeCenterX;
+ textY = edgeCenterY;
+
+ // add center point to style so bounding box calculations can use it
+ rs.labelX = textX;
+ rs.labelY = textY;
+ rstyle.labelX = textX;
+ rstyle.labelY = textY;
+
+ this.applyLabelDimensions( edge );
+ };
+
+ CanvasRenderer.prototype.applyLabelDimensions = function( ele ){
+ var rs = ele._private.rscratch;
+ var rstyle = ele._private.rstyle;
+
+ var text = this.getLabelText( ele );
+ var labelDims = this.calculateLabelDimensions( ele, text );
+
+ rstyle.labelWidth = labelDims.width;
+ rs.labelWidth = labelDims.width;
+
+ rstyle.labelHeight = labelDims.height;
+ rs.labelHeight = labelDims.height;
+ };
+
+ CanvasRenderer.prototype.getLabelText = function( ele ){
+ var style = ele._private.style;
+ var text = ele._private.style['content'].strValue;
+ var textTransform = style['text-transform'].value;
+
+ if (textTransform == 'none') {
+ } else if (textTransform == 'uppercase') {
+ text = text.toUpperCase();
+ } else if (textTransform == 'lowercase') {
+ text = text.toLowerCase();
+ }
+
+ return text;
+ };
+
+ CanvasRenderer.prototype.calculateLabelDimensions = function( ele, text ){
+ var r = this;
+ var style = ele._private.style;
+ var fStyle = style['font-style'].strValue;
+ var size = style['font-size'].pxValue + 'px';
+ var family = style['font-family'].strValue;
+ // var variant = style['font-variant'].strValue;
+ var weight = style['font-weight'].strValue;
+
+ var cacheKey = ele._private.labelKey;
+ var cache = r.labelDimCache || (r.labelDimCache = {});
+
+ if( cache[cacheKey] ){
+ return cache[cacheKey];
+ }
+
+ var div = this.labelCalcDiv;
+
+ if( !div ){
+ div = this.labelCalcDiv = document.createElement('div');
+ document.body.appendChild( div );
+ }
+
+ var ds = div.style;
+
+ // from ele style
+ ds.fontFamily = family;
+ ds.fontStyle = fStyle;
+ ds.fontSize = size;
+ // ds.fontVariant = variant;
+ ds.fontWeight = weight;
+
+ // forced style
+ ds.position = 'absolute';
+ ds.left = '-9999px';
+ ds.top = '-9999px';
+ ds.zIndex = '-1';
+ ds.visibility = 'hidden';
+ ds.pointerEvents = 'none';
+ ds.padding = '0';
+ ds.lineHeight = '1';
+
+ // put label content in div
+ div.textContent = text;
+
+ cache[cacheKey] = {
+ width: div.clientWidth,
+ height: div.clientHeight
+ };
+
+ return cache[cacheKey];
+ };
+
+ CanvasRenderer.prototype.recalculateRenderedStyle = function( eles ){
+ var edges = [];
+ var nodes = [];
+ var handledEdge = {};
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+ var _p = ele._private;
+ var rs = _p.rscratch;
+ var rstyle = _p.rstyle;
+ var id = _p.data.id;
+ var bbStyleSame = rs.boundingBoxKey != null && _p.boundingBoxKey === rs.boundingBoxKey;
+ var labelStyleSame = rs.labelKey != null && _p.labelKey === rs.labelKey;
+ var styleSame = bbStyleSame && labelStyleSame;
+
+ if( ele._private.group === 'nodes' ){
+ var pos = _p.position;
+ var posSame = rstyle.nodeX != null && rstyle.nodeY != null && pos.x === rstyle.nodeX && pos.y === rstyle.nodeY;
+
+ if( !posSame || !styleSame ){
+ nodes.push( ele );
+ }
+
+ rstyle.nodeX = pos.x;
+ rstyle.nodeY = pos.y;
+ } else { // edges
+
+ var srcPos = ele._private.source._private.position;
+ var tgtPos = ele._private.target._private.position;
+ var srcSame = rstyle.srcX != null && rstyle.srcY != null && srcPos.x === rstyle.srcX && srcPos.y === rstyle.srcY;
+ var tgtSame = rstyle.tgtX != null && rstyle.tgtY != null && tgtPos.x === rstyle.tgtX && tgtPos.y === rstyle.tgtY;
+ var positionsSame = srcSame && tgtSame;
+
+ if( !positionsSame || !styleSame ){
+ var curveType = _p.style['curve-style'].value;
+
+ if( curveType === 'bezier' ){
+ if( !handledEdge[ id ] ){
+ edges.push( ele );
+ handledEdge[ id ] = true;
+
+ var parallelEdges = ele.parallelEdges();
+ for( var i = 0; i < parallelEdges.length; i++ ){
+ var pEdge = parallelEdges[i];
+ var pId = pEdge._private.data.id;
+
+ if( !handledEdge[ pId ] ){
+ edges.push( pEdge );
+ handledEdge[ pId ] = true;
+ }
+
+ }
+ }
+ } else {
+ edges.push( ele );
+ }
+ } // if positions diff
+
+ // update rstyle positions
+ rstyle.srcX = srcPos.x;
+ rstyle.srcY = srcPos.y;
+ rstyle.tgtX = tgtPos.x;
+ rstyle.tgtY = tgtPos.y;
+
+ } // if edges
+
+ rs.boundingBoxKey = _p.boundingBoxKey;
+ rs.labelKey = _p.labelKey;
+ }
+
+ this.recalculateEdgeProjections( edges );
+ this.recalculateLabelProjections( nodes, edges );
+ };
+
+ CanvasRenderer.prototype.recalculateLabelProjections = function( nodes, edges ){
+ for( var i = 0; i < nodes.length; i++ ){
+ this.recalculateNodeLabelProjection( nodes[i] );
+ }
+
+ for( var i = 0; i < edges.length; i++ ){
+ this.recalculateEdgeLabelProjection( edges[i] );
+ }
+ };
+
+ CanvasRenderer.prototype.recalculateEdgeProjections = function( edges ){
+ this.findEdgeControlPoints( edges );
+ };
+
+
+ // Find edge control points
+ CanvasRenderer.prototype.findEdgeControlPoints = function(edges) {
+ if( !edges || edges.length === 0 ){ return; }
+
+ var hashTable = {};
+ var pairIds = [];
+ var haystackEdges = [];
+
+ // create a table of edge (src, tgt) => list of edges between them
+ var pairId;
+ for (var i = 0; i < edges.length; i++){
+ var edge = edges[i];
+ var style = edge._private.style;
+ var edgeIsUnbundled = style['curve-style'].value === 'unbundled-bezier';
+
+ // ignore edges who are not to be displayed
+ // they shouldn't take up space
+ if( style.display.value === 'none' ){
+ continue;
+ }
+
+ if( style['curve-style'].value === 'haystack' ){
+ haystackEdges.push( edge );
+ continue;
+ }
+
+ var srcId = edge._private.data.source;
+ var tgtId = edge._private.data.target;
+
+ pairId = srcId > tgtId ?
+ tgtId + '-' + srcId :
+ srcId + '-' + tgtId ;
+
+ if( edgeIsUnbundled ){
+ pairId = 'unbundled' + edge._private.data.id;
+ }
+
+ if (hashTable[pairId] == null) {
+ hashTable[pairId] = [];
+ pairIds.push( pairId );
+ }
+
+ hashTable[pairId].push( edge );
+
+ if( edgeIsUnbundled ){
+ hashTable[pairId].hasUnbundled = true;
+ }
+ }
+
+ var src, tgt, srcPos, tgtPos, srcW, srcH, tgtW, tgtH, srcShape, tgtShape, srcBorder, tgtBorder;
+ var vectorNormInverse;
+ var badBezier;
+
+ // for each pair (src, tgt), create the ctrl pts
+ // Nested for loop is OK; total number of iterations for both loops = edgeCount
+ for (var p = 0; p < pairIds.length; p++) {
+ pairId = pairIds[p];
+ var pairEdges = hashTable[pairId];
+
+ // for each pair id, the edges should be sorted by index
+ pairEdges.sort(function(edge1, edge2){
+ return edge1._private.index - edge2._private.index;
+ });
+
+ src = pairEdges[0]._private.source;
+ tgt = pairEdges[0]._private.target;
+
+ // make sure src/tgt distinction is consistent
+ // (src/tgt in this case are just for ctrlpts and don't actually have to be true src/tgt)
+ if( src._private.data.id > tgt._private.data.id ){
+ var temp = src;
+ src = tgt;
+ tgt = temp;
+ }
+
+ srcPos = src._private.position;
+ tgtPos = tgt._private.position;
+
+ srcW = this.getNodeWidth(src);
+ srcH = this.getNodeHeight(src);
+
+ tgtW = this.getNodeWidth(tgt);
+ tgtH = this.getNodeHeight(tgt);
+
+ srcShape = CanvasRenderer.nodeShapes[ this.getNodeShape(src) ];
+ tgtShape = CanvasRenderer.nodeShapes[ this.getNodeShape(tgt) ];
+
+ srcBorder = src._private.style['border-width'].pxValue;
+ tgtBorder = tgt._private.style['border-width'].pxValue;
+
+ badBezier = false;
+
+
+ if( (pairEdges.length > 1 && src !== tgt) || pairEdges.hasUnbundled ){
+
+ // pt outside src shape to calc distance/displacement from src to tgt
+ var srcOutside = srcShape.intersectLine(
+ srcPos.x,
+ srcPos.y,
+ srcW,
+ srcH,
+ tgtPos.x,
+ tgtPos.y,
+ srcBorder / 2
+ );
+
+ // pt outside tgt shape to calc distance/displacement from src to tgt
+ var tgtOutside = tgtShape.intersectLine(
+ tgtPos.x,
+ tgtPos.y,
+ tgtW,
+ tgtH,
+ srcPos.x,
+ srcPos.y,
+ tgtBorder / 2
+ );
+
+ var midptSrcPts = {
+ x1: srcOutside[0],
+ x2: tgtOutside[0],
+ y1: srcOutside[1],
+ y2: tgtOutside[1]
+ };
+
+ var dy = ( tgtOutside[1] - srcOutside[1] );
+ var dx = ( tgtOutside[0] - srcOutside[0] );
+ var l = Math.sqrt( dx*dx + dy*dy );
+
+ var vector = {
+ x: dx,
+ y: dy
+ };
+
+ var vectorNorm = {
+ x: vector.x/l,
+ y: vector.y/l
+ };
+ vectorNormInverse = {
+ x: -vectorNorm.y,
+ y: vectorNorm.x
+ };
+
+ // if src intersection is inside tgt or tgt intersection is inside src, then no ctrl pts to draw
+ if(
+ tgtShape.checkPoint( srcOutside[0], srcOutside[1], tgtBorder/2, tgtW, tgtH, tgtPos.x, tgtPos.y ) ||
+ srcShape.checkPoint( tgtOutside[0], tgtOutside[1], srcBorder/2, srcW, srcH, srcPos.x, srcPos.y )
+ ){
+ vectorNormInverse = {};
+ badBezier = true;
+ }
+
+ }
+
+ var edge;
+ var rs;
+
+ for (var i = 0; i < pairEdges.length; i++) {
+ edge = pairEdges[i];
+ rs = edge._private.rscratch;
+
+ var edgeIndex1 = rs.lastEdgeIndex;
+ var edgeIndex2 = i;
+
+ var numEdges1 = rs.lastNumEdges;
+ var numEdges2 = pairEdges.length;
+
+ var eStyle = edge._private.style;
+ var stepSize = eStyle['control-point-step-size'].pxValue;
+ var stepDist = eStyle['control-point-distance'] !== undefined ? eStyle['control-point-distance'].pxValue : undefined;
+ var stepWeight = eStyle['control-point-weight'].value;
+ var edgeIsUnbundled = eStyle['curve-style'].value === 'unbundled-bezier';
+
+ var srcX1 = rs.lastSrcCtlPtX;
+ var srcX2 = srcPos.x;
+ var srcY1 = rs.lastSrcCtlPtY;
+ var srcY2 = srcPos.y;
+ var srcW1 = rs.lastSrcCtlPtW;
+ var srcW2 = src.outerWidth();
+ var srcH1 = rs.lastSrcCtlPtH;
+ var srcH2 = src.outerHeight();
+
+ var tgtX1 = rs.lastTgtCtlPtX;
+ var tgtX2 = tgtPos.x;
+ var tgtY1 = rs.lastTgtCtlPtY;
+ var tgtY2 = tgtPos.y;
+ var tgtW1 = rs.lastTgtCtlPtW;
+ var tgtW2 = tgt.outerWidth();
+ var tgtH1 = rs.lastTgtCtlPtH;
+ var tgtH2 = tgt.outerHeight();
+
+ if( badBezier ){
+ rs.badBezier = true;
+ } else {
+ rs.badBezier = false;
+ }
+
+ if( srcX1 === srcX2 && srcY1 === srcY2 && srcW1 === srcW2 && srcH1 === srcH2
+ && tgtX1 === tgtX2 && tgtY1 === tgtY2 && tgtW1 === tgtW2 && tgtH1 === tgtH2
+ && ((edgeIndex1 === edgeIndex2 && numEdges1 === numEdges2) || edgeIsUnbundled) ){
+ // console.log('edge ctrl pt cache HIT')
+ continue; // then the control points haven't changed and we can skip calculating them
+ } else {
+ rs.lastSrcCtlPtX = srcX2;
+ rs.lastSrcCtlPtY = srcY2;
+ rs.lastSrcCtlPtW = srcW2;
+ rs.lastSrcCtlPtH = srcH2;
+ rs.lastTgtCtlPtX = tgtX2;
+ rs.lastTgtCtlPtY = tgtY2;
+ rs.lastTgtCtlPtW = tgtW2;
+ rs.lastTgtCtlPtH = tgtH2;
+ rs.lastEdgeIndex = edgeIndex2;
+ rs.lastNumEdges = numEdges2;
+ // console.log('edge ctrl pt cache MISS')
+ }
+
+ // Self-edge
+ if ( src === tgt ) {
+
+ rs.edgeType = 'self';
+
+ var j = i;
+ var loopDist = stepSize;
+
+ if( edgeIsUnbundled ){
+ j = 0;
+ loopDist = stepDist;
+ }
+
+ // New -- fix for large nodes
+ rs.cp2ax = srcPos.x;
+ rs.cp2ay = srcPos.y - (1 + Math.pow(srcH, 1.12) / 100) * loopDist * (j / 3 + 1);
+
+ rs.cp2cx = src._private.position.x - (1 + Math.pow(srcW, 1.12) / 100) * loopDist * (j / 3 + 1);
+ rs.cp2cy = srcPos.y;
+
+ rs.selfEdgeMidX = (rs.cp2ax + rs.cp2cx) / 2.0;
+ rs.selfEdgeMidY = (rs.cp2ay + rs.cp2cy) / 2.0;
+
+ // Straight edge
+ } else if (pairEdges.length % 2 === 1
+ && i === Math.floor(pairEdges.length / 2)
+ && !edgeIsUnbundled ) {
+
+ rs.edgeType = 'straight';
+
+ // Bezier edge
+ } else {
+ var normStepDist = (0.5 - pairEdges.length / 2 + i) * stepSize;
+ var manStepDist;
+ var sign = $$.math.signum( normStepDist );
+
+ if( edgeIsUnbundled ){
+ manStepDist = stepDist;
+ } else {
+ manStepDist = stepDist !== undefined ? sign * stepDist : undefined;
+ }
+
+ var distanceFromMidpoint = manStepDist !== undefined ? manStepDist : normStepDist;
+
+ var w1 = (1 - stepWeight);
+ var w2 = stepWeight;
+
+ var swappedDirection = edge._private.source !== src;
+ if( swappedDirection ){
+ w1 = stepWeight;
+ w2 = (1 - stepWeight);
+ }
+
+ var adjustedMidpt = {
+ x: midptSrcPts.x1 * w1 + midptSrcPts.x2 * w2,
+ y: midptSrcPts.y1 * w1 + midptSrcPts.y2 * w2
+ };
+
+ rs.edgeType = 'bezier';
+
+ rs.cp2x = adjustedMidpt.x + vectorNormInverse.x * distanceFromMidpoint;
+ rs.cp2y = adjustedMidpt.y + vectorNormInverse.y * distanceFromMidpoint;
+
+ // console.log(edge, midPointX, displacementX, distanceFromMidpoint);
+ }
+
+ // find endpts for edge
+ this.findEndpoints( edge );
+
+ var badStart = !$$.is.number( rs.startX ) || !$$.is.number( rs.startY );
+ var badAStart = !$$.is.number( rs.arrowStartX ) || !$$.is.number( rs.arrowStartY );
+ var badEnd = !$$.is.number( rs.endX ) || !$$.is.number( rs.endY );
+ var badAEnd = !$$.is.number( rs.arrowEndX ) || !$$.is.number( rs.arrowEndY );
+
+ var minCpADistFactor = 3;
+ var arrowW = this.getArrowWidth( edge._private.style['width'].pxValue ) * CanvasRenderer.arrowShapeHeight;
+ var minCpADist = minCpADistFactor * arrowW;
+ var startACpDist = $$.math.distance( { x: rs.cp2x, y: rs.cp2y }, { x: rs.startX, y: rs.startY } );
+ var closeStartACp = startACpDist < minCpADist;
+ var endACpDist = $$.math.distance( { x: rs.cp2x, y: rs.cp2y }, { x: rs.endX, y: rs.endY } );
+ var closeEndACp = endACpDist < minCpADist;
+
+ if( rs.edgeType === 'bezier' ){
+ var overlapping = false;
+
+ if( badStart || badAStart || closeStartACp ){
+ overlapping = true;
+
+ // project control point along line from src centre to outside the src shape
+ // (otherwise intersection will yield nothing)
+ var cpD = { // delta
+ x: rs.cp2x - srcPos.x,
+ y: rs.cp2y - srcPos.y
+ };
+ var cpL = Math.sqrt( cpD.x*cpD.x + cpD.y*cpD.y ); // length of line
+ var cpM = { // normalised delta
+ x: cpD.x / cpL,
+ y: cpD.y / cpL
+ };
+ var radius = Math.max(srcW, srcH);
+ var cpProj = { // *2 radius guarantees outside shape
+ x: rs.cp2x + cpM.x * 2 * radius,
+ y: rs.cp2y + cpM.y * 2 * radius
+ };
+
+ var srcCtrlPtIntn = srcShape.intersectLine(
+ srcPos.x,
+ srcPos.y,
+ srcW,
+ srcH,
+ cpProj.x,
+ cpProj.y,
+ srcBorder / 2
+ );
+
+ if( closeStartACp ){
+ rs.cp2x = rs.cp2x + cpM.x * (minCpADist - startACpDist);
+ rs.cp2y = rs.cp2y + cpM.y * (minCpADist - startACpDist);
+ } else {
+ rs.cp2x = srcCtrlPtIntn[0] + cpM.x * minCpADist;
+ rs.cp2y = srcCtrlPtIntn[1] + cpM.y * minCpADist;
+ }
+ }
+
+ if( badEnd || badAEnd || closeEndACp ){
+ overlapping = true;
+
+ // project control point along line from tgt centre to outside the tgt shape
+ // (otherwise intersection will yield nothing)
+ var cpD = { // delta
+ x: rs.cp2x - tgtPos.x,
+ y: rs.cp2y - tgtPos.y
+ };
+ var cpL = Math.sqrt( cpD.x*cpD.x + cpD.y*cpD.y ); // length of line
+ var cpM = { // normalised delta
+ x: cpD.x / cpL,
+ y: cpD.y / cpL
+ };
+ var radius = Math.max(srcW, srcH);
+ var cpProj = { // *2 radius guarantees outside shape
+ x: rs.cp2x + cpM.x * 2 * radius,
+ y: rs.cp2y + cpM.y * 2 * radius
+ };
+
+ var tgtCtrlPtIntn = tgtShape.intersectLine(
+ tgtPos.x,
+ tgtPos.y,
+ tgtW,
+ tgtH,
+ cpProj.x,
+ cpProj.y,
+ tgtBorder / 2
+ );
+
+ if( closeEndACp ){
+ rs.cp2x = rs.cp2x + cpM.x * (minCpADist - endACpDist);
+ rs.cp2y = rs.cp2y + cpM.y * (minCpADist - endACpDist);
+ } else {
+ rs.cp2x = tgtCtrlPtIntn[0] + cpM.x * minCpADist;
+ rs.cp2y = tgtCtrlPtIntn[1] + cpM.y * minCpADist;
+ }
+
+ }
+
+ if( overlapping ){
+ // recalc endpts
+ this.findEndpoints( edge );
+ }
+ } else if( rs.edgeType === 'straight' ){
+ rs.midX = ( srcX2 + tgtX2 )/2;
+ rs.midY = ( srcY2 + tgtY2 )/2;
+ }
+
+ // project the edge into rstyle
+ this.projectBezier( edge );
+
+ }
+ }
+
+ for( var i = 0; i < haystackEdges.length; i++ ){
+ var edge = haystackEdges[i];
+ var rscratch = edge._private.rscratch;
+
+ if( !rscratch.haystack ){
+ var angle = Math.random() * 2 * Math.PI;
+
+ rscratch.source = {
+ x: Math.cos(angle),
+ y: Math.sin(angle)
+ };
+
+ var angle = Math.random() * 2 * Math.PI;
+
+ rscratch.target = {
+ x: Math.cos(angle),
+ y: Math.sin(angle)
+ };
+
+ rscratch.edgeType = 'haystack';
+ rscratch.haystack = true;
+ }
+ }
+
+ return hashTable;
+ };
+
+ CanvasRenderer.prototype.findEndpoints = function(edge) {
+ var intersect;
+
+ var source = edge.source()[0];
+ var target = edge.target()[0];
+
+ var tgtArShape = edge._private.style['target-arrow-shape'].value;
+ var srcArShape = edge._private.style['source-arrow-shape'].value;
+
+ var tgtBorderW = target._private.style['border-width'].pxValue;
+ var srcBorderW = source._private.style['border-width'].pxValue;
+
+ var rs = edge._private.rscratch;
+
+ if (edge._private.rscratch.edgeType == 'self') {
+
+ var cp = [rs.cp2cx, rs.cp2cy];
+
+ intersect = CanvasRenderer.nodeShapes[this.getNodeShape(target)].intersectLine(
+ target._private.position.x,
+ target._private.position.y,
+ this.getNodeWidth(target),
+ this.getNodeHeight(target),
+ cp[0],
+ cp[1],
+ tgtBorderW / 2
+ );
+
+ var arrowEnd = $$.math.shortenIntersection(intersect, cp,
+ CanvasRenderer.arrowShapes[tgtArShape].spacing(edge));
+ var edgeEnd = $$.math.shortenIntersection(intersect, cp,
+ CanvasRenderer.arrowShapes[tgtArShape].gap(edge));
+
+ rs.endX = edgeEnd[0];
+ rs.endY = edgeEnd[1];
+
+ rs.arrowEndX = arrowEnd[0];
+ rs.arrowEndY = arrowEnd[1];
+
+ var cp = [rs.cp2ax, rs.cp2ay];
+
+ intersect = CanvasRenderer.nodeShapes[this.getNodeShape(source)].intersectLine(
+ source._private.position.x,
+ source._private.position.y,
+ this.getNodeWidth(source),
+ this.getNodeHeight(source),
+ cp[0], //halfPointX,
+ cp[1], //halfPointY
+ srcBorderW / 2
+ );
+
+ var arrowStart = $$.math.shortenIntersection(intersect, cp,
+ CanvasRenderer.arrowShapes[srcArShape].spacing(edge));
+ var edgeStart = $$.math.shortenIntersection(intersect, cp,
+ CanvasRenderer.arrowShapes[srcArShape].gap(edge));
+
+ rs.startX = edgeStart[0];
+ rs.startY = edgeStart[1];
+
+
+ rs.arrowStartX = arrowStart[0];
+ rs.arrowStartY = arrowStart[1];
+
+ } else if (rs.edgeType == 'straight') {
+
+ intersect = CanvasRenderer.nodeShapes[this.getNodeShape(target)].intersectLine(
+ target._private.position.x,
+ target._private.position.y,
+ this.getNodeWidth(target),
+ this.getNodeHeight(target),
+ source.position().x,
+ source.position().y,
+ tgtBorderW / 2);
+
+ if (intersect.length === 0) {
+ rs.noArrowPlacement = true;
+ // return;
+ } else {
+ rs.noArrowPlacement = false;
+ }
+
+ var arrowEnd = $$.math.shortenIntersection(intersect,
+ [source.position().x, source.position().y],
+ CanvasRenderer.arrowShapes[tgtArShape].spacing(edge));
+ var edgeEnd = $$.math.shortenIntersection(intersect,
+ [source.position().x, source.position().y],
+ CanvasRenderer.arrowShapes[tgtArShape].gap(edge));
+
+ rs.endX = edgeEnd[0];
+ rs.endY = edgeEnd[1];
+
+ rs.arrowEndX = arrowEnd[0];
+ rs.arrowEndY = arrowEnd[1];
+
+ intersect = CanvasRenderer.nodeShapes[this.getNodeShape(source)].intersectLine(
+ source._private.position.x,
+ source._private.position.y,
+ this.getNodeWidth(source),
+ this.getNodeHeight(source),
+ target.position().x,
+ target.position().y,
+ srcBorderW / 2);
+
+ if (intersect.length === 0) {
+ rs.noArrowPlacement = true;
+ // return;
+ } else {
+ rs.noArrowPlacement = false;
+ }
+
+ /*
+ console.log("1: "
+ + CanvasRenderer.arrowShapes[srcArShape],
+ srcArShape);
+ */
+ var arrowStart = $$.math.shortenIntersection(intersect,
+ [target.position().x, target.position().y],
+ CanvasRenderer.arrowShapes[srcArShape].spacing(edge));
+ var edgeStart = $$.math.shortenIntersection(intersect,
+ [target.position().x, target.position().y],
+ CanvasRenderer.arrowShapes[srcArShape].gap(edge));
+
+ rs.startX = edgeStart[0];
+ rs.startY = edgeStart[1];
+
+ rs.arrowStartX = arrowStart[0];
+ rs.arrowStartY = arrowStart[1];
+
+ } else if (rs.edgeType == 'bezier') {
+ // if( window.badArrow) debugger;
+ var cp = [rs.cp2x, rs.cp2y];
+
+ intersect = CanvasRenderer.nodeShapes[
+ this.getNodeShape(target)].intersectLine(
+ target._private.position.x,
+ target._private.position.y,
+ this.getNodeWidth(target),
+ this.getNodeHeight(target),
+ cp[0], //halfPointX,
+ cp[1], //halfPointY
+ tgtBorderW / 2
+ );
+
+ /*
+ console.log("2: "
+ + CanvasRenderer.arrowShapes[srcArShape],
+ srcArShape);
+ */
+ var arrowEnd = $$.math.shortenIntersection(intersect, cp,
+ CanvasRenderer.arrowShapes[tgtArShape].spacing(edge));
+ var edgeEnd = $$.math.shortenIntersection(intersect, cp,
+ CanvasRenderer.arrowShapes[tgtArShape].gap(edge));
+
+ rs.endX = edgeEnd[0];
+ rs.endY = edgeEnd[1];
+
+ rs.arrowEndX = arrowEnd[0];
+ rs.arrowEndY = arrowEnd[1];
+
+ intersect = CanvasRenderer.nodeShapes[
+ this.getNodeShape(source)].intersectLine(
+ source._private.position.x,
+ source._private.position.y,
+ this.getNodeWidth(source),
+ this.getNodeHeight(source),
+ cp[0], //halfPointX,
+ cp[1], //halfPointY
+ srcBorderW / 2
+ );
+
+ var arrowStart = $$.math.shortenIntersection(
+ intersect,
+ cp,
+ CanvasRenderer.arrowShapes[srcArShape].spacing(edge)
+ );
+ var edgeStart = $$.math.shortenIntersection(
+ intersect,
+ cp,
+ CanvasRenderer.arrowShapes[srcArShape].gap(edge)
+ );
+
+ rs.startX = edgeStart[0];
+ rs.startY = edgeStart[1];
+
+ rs.arrowStartX = arrowStart[0];
+ rs.arrowStartY = arrowStart[1];
+
+ // if( isNaN(rs.startX) || isNaN(rs.startY) ){
+ // debugger;
+ // }
+
+ } else if (rs.isArcEdge) {
+ return;
+ }
+ };
+
+ // Find adjacent edges
+ CanvasRenderer.prototype.findEdges = function(nodeSet) {
+
+ var edges = this.getCachedEdges();
+
+ var hashTable = {};
+ var adjacentEdges = [];
+
+ for (var i = 0; i < nodeSet.length; i++) {
+ hashTable[nodeSet[i]._private.data.id] = nodeSet[i];
+ }
+
+ for (var i = 0; i < edges.length; i++) {
+ if (hashTable[edges[i]._private.data.source]
+ || hashTable[edges[i]._private.data.target]) {
+
+ adjacentEdges.push(edges[i]);
+ }
+ }
+
+ return adjacentEdges;
+ };
+
+ CanvasRenderer.prototype.getArrowWidth = CanvasRenderer.prototype.getArrowHeight = function(edgeWidth) {
+ var cache = this.arrowWidthCache = this.arrowWidthCache || {};
+
+ var cachedVal = cache[edgeWidth];
+ if( cachedVal ){
+ return cachedVal;
+ }
+
+ cachedVal = Math.max(Math.pow(edgeWidth * 13.37, 0.9), 29);
+ cache[edgeWidth] = cachedVal;
+
+ return cachedVal;
+ };
+
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+// Draw edge
+ CanvasRenderer.prototype.drawEdge = function(context, edge, drawOverlayInstead) {
+ var rs = edge._private.rscratch;
+ var usePaths = CanvasRenderer.usePaths();
+
+ // if bezier ctrl pts can not be calculated, then die
+ if( rs.badBezier || ( (rs.edgeType === 'bezier' || rs.edgeType === 'straight') && isNaN(rs.startX)) ){ // extra isNaN() for safari 7.1 b/c it mangles ctrlpt calcs
+ return;
+ }
+
+ var style = edge._private.style;
+
+ // Edge line width
+ if (style['width'].pxValue <= 0) {
+ return;
+ }
+
+ var overlayPadding = style['overlay-padding'].pxValue;
+ var overlayOpacity = style['overlay-opacity'].value;
+ var overlayColor = style['overlay-color'].value;
+
+ // Edge color & opacity
+ if( drawOverlayInstead ){
+
+ if( overlayOpacity === 0 ){ // exit early if no overlay
+ return;
+ }
+
+ this.strokeStyle(context, overlayColor[0], overlayColor[1], overlayColor[2], overlayOpacity);
+ context.lineCap = 'round';
+
+ if( edge._private.rscratch.edgeType == 'self' && !usePaths ){
+ context.lineCap = 'butt';
+ }
+
+ } else {
+ var lineColor = style['line-color'].value;
+
+ this.strokeStyle(context, lineColor[0], lineColor[1], lineColor[2], style.opacity.value);
+
+ context.lineCap = 'butt';
+ }
+
+ var startNode, endNode, source, target;
+ source = startNode = edge._private.source;
+ target = endNode = edge._private.target;
+
+ var targetPos = target._private.position;
+ var targetW = target.width();
+ var targetH = target.height();
+ var sourcePos = source._private.position;
+ var sourceW = source.width();
+ var sourceH = source.height();
+
+
+ var edgeWidth = style['width'].pxValue + (drawOverlayInstead ? 2 * overlayPadding : 0);
+ var lineStyle = drawOverlayInstead ? 'solid' : style['line-style'].value;
+ context.lineWidth = edgeWidth;
+
+ if( rs.edgeType !== 'haystack' ){
+ //this.findEndpoints(edge);
+ }
+
+ if( rs.edgeType === 'haystack' ){
+ var radius = style['haystack-radius'].value;
+ var halfRadius = radius/2; // b/c have to half width/height
+
+ this.drawStyledEdge(
+ edge,
+ context,
+ rs.haystackPts = [
+ rs.source.x * sourceW * halfRadius + sourcePos.x,
+ rs.source.y * sourceH * halfRadius + sourcePos.y,
+ rs.target.x * targetW * halfRadius + targetPos.x,
+ rs.target.y * targetH * halfRadius + targetPos.y
+ ],
+ lineStyle,
+ edgeWidth
+ );
+ } else if (rs.edgeType === 'self') {
+
+ var details = edge._private.rscratch;
+ var points = [details.startX, details.startY, details.cp2ax,
+ details.cp2ay, details.selfEdgeMidX, details.selfEdgeMidY,
+ details.selfEdgeMidX, details.selfEdgeMidY,
+ details.cp2cx, details.cp2cy, details.endX, details.endY];
+
+ var details = edge._private.rscratch;
+ this.drawStyledEdge(edge, context, points, lineStyle, edgeWidth);
+
+ } else if (rs.edgeType === 'straight') {
+
+ var nodeDirectionX = endNode._private.position.x - startNode._private.position.x;
+ var nodeDirectionY = endNode._private.position.y - startNode._private.position.y;
+
+ var edgeDirectionX = rs.endX - rs.startX;
+ var edgeDirectionY = rs.endY - rs.startY;
+
+ if (nodeDirectionX * edgeDirectionX
+ + nodeDirectionY * edgeDirectionY < 0) {
+
+ rs.straightEdgeTooShort = true;
+ } else {
+
+ var details = rs;
+ this.drawStyledEdge(edge, context, [details.startX, details.startY,
+ details.endX, details.endY],
+ lineStyle,
+ edgeWidth);
+
+ rs.straightEdgeTooShort = false;
+ }
+ } else {
+
+ var details = rs;
+
+ this.drawStyledEdge(edge, context, [details.startX, details.startY,
+ details.cp2x, details.cp2y, details.endX, details.endY],
+ lineStyle,
+ edgeWidth);
+
+ }
+
+ if( rs.edgeType === 'haystack' ){
+ this.drawArrowheads(context, edge, drawOverlayInstead);
+ } else if ( rs.noArrowPlacement !== true && rs.startX !== undefined ){
+ this.drawArrowheads(context, edge, drawOverlayInstead);
+ }
+
+ };
+
+
+ CanvasRenderer.prototype.drawStyledEdge = function(
+ edge, context, pts, type, width) {
+
+ // 3 points given -> assume Bezier
+ // 2 -> assume straight
+
+ var rs = edge._private.rscratch;
+ var canvasCxt = context;
+ var path;
+ var pathCacheHit = false;
+ var usePaths = CanvasRenderer.usePaths();
+
+
+ if( usePaths ){
+
+ var pathCacheKey = pts;
+ var keyLengthMatches = rs.pathCacheKey && pathCacheKey.length === rs.pathCacheKey.length;
+ var keyMatches = keyLengthMatches;
+
+ for( var i = 0; keyMatches && i < pathCacheKey.length; i++ ){
+ if( rs.pathCacheKey[i] !== pathCacheKey[i] ){
+ keyMatches = false;
+ }
+ }
+
+ if( keyMatches ){
+ path = context = rs.pathCache;
+ pathCacheHit = true;
+ } else {
+ path = context = new Path2D();
+ rs.pathCacheKey = pathCacheKey;
+ rs.pathCache = path;
+ }
+
+ }
+
+ if( canvasCxt.setLineDash ){ // for very outofdate browsers
+ switch( type ){
+ case 'dotted':
+ canvasCxt.setLineDash([ 1, 1 ]);
+ break;
+
+ case 'dashed':
+ canvasCxt.setLineDash([ 6, 3 ]);
+ break;
+
+ case 'solid':
+ canvasCxt.setLineDash([ ]);
+ break;
+ }
+ }
+
+ if( !pathCacheHit ){
+ if( context.beginPath ){ context.beginPath(); }
+ context.moveTo(pts[0], pts[1]);
+
+ if (pts.length === 3 * 2) { // bezier
+ context.quadraticCurveTo(pts[2], pts[3], pts[4], pts[5]);
+ } else if( pts.length === 3 * 2 * 2 ){ // double bezier loop
+ context.quadraticCurveTo(pts[2], pts[3], pts[4], pts[5]);
+ context.quadraticCurveTo(pts[8], pts[9], pts[10], pts[11]);
+ } else { // line
+ context.lineTo(pts[2], pts[3]);
+ }
+ }
+
+ context = canvasCxt;
+ if( usePaths ){
+ context.stroke( path );
+ } else {
+ context.stroke();
+ }
+
+ // reset any line dashes
+ if( context.setLineDash ){ // for very outofdate browsers
+ context.setLineDash([ ]);
+ }
+
+ };
+
+ CanvasRenderer.prototype.drawArrowheads = function(context, edge, drawOverlayInstead) {
+ if( drawOverlayInstead ){ return; } // don't do anything for overlays
+
+ var rs = edge._private.rscratch;
+ var self = this;
+ var isHaystack = rs.edgeType === 'haystack';
+
+ // Displacement gives direction for arrowhead orientation
+ var dispX, dispY;
+ var startX, startY, endX, endY;
+
+ var srcPos = edge.source().position();
+ var tgtPos = edge.target().position();
+
+ if( isHaystack ){
+ startX = rs.haystackPts[0];
+ startY = rs.haystackPts[1];
+ endX = rs.haystackPts[2];
+ endY = rs.haystackPts[3];
+ } else {
+ startX = rs.arrowStartX;
+ startY = rs.arrowStartY;
+ endX = rs.arrowEndX;
+ endY = rs.arrowEndY;
+ }
+
+ var style = edge._private.style;
+
+ function drawArrowhead( prefix, x, y, dispX, dispY ){
+ var arrowShape = style[prefix + '-arrow-shape'].value;
+
+ if( arrowShape === 'none' ){
+ return;
+ }
+
+ var gco = context.globalCompositeOperation;
+
+ context.globalCompositeOperation = 'destination-out';
+
+ self.fillStyle(context, 255, 255, 255, 1);
+
+
+ var arrowClearFill = style[prefix + '-arrow-fill'].value === 'hollow' ? 'both' : 'filled';
+ var arrowFill = style[prefix + '-arrow-fill'].value;
+
+ if( arrowShape === 'half-triangle-overshot' ){
+ arrowFill = 'hollow';
+ arrowClearFill = 'hollow';
+ }
+
+ self.drawArrowShape( edge, prefix, context,
+ arrowClearFill, style['width'].pxValue, style[prefix + '-arrow-shape'].value,
+ x, y, dispX, dispY
+ );
+
+ context.globalCompositeOperation = gco;
+
+ var color = style[prefix + '-arrow-color'].value;
+ self.fillStyle(context, color[0], color[1], color[2], style.opacity.value);
+
+ self.drawArrowShape( edge, prefix, context,
+ arrowFill, style['width'].pxValue, style[prefix + '-arrow-shape'].value,
+ x, y, dispX, dispY
+ );
+ }
+
+ dispX = startX - srcPos.x;
+ dispY = startY - srcPos.y;
+
+ if( !isHaystack && !isNaN(startX) && !isNaN(startY) && !isNaN(dispX) && !isNaN(dispY) ){
+ drawArrowhead( 'source', startX, startY, dispX, dispY );
+
+ } else {
+ // window.badArrow = true;
+ // debugger;
+ }
+
+ var midX = rs.midX;
+ var midY = rs.midY;
+
+ if( isHaystack ){
+ midX = ( startX + endX )/2;
+ midY = ( startY + endY )/2;
+ }
+
+ dispX = startX - endX;
+ dispY = startY - endY;
+
+ if( rs.edgeType === 'self' ){
+ dispX = 1;
+ dispY = -1;
+ }
+
+ if( !isNaN(midX) && !isNaN(midY) ){
+ drawArrowhead( 'mid-target', midX, midY, dispX, dispY );
+ }
+
+ dispX *= -1;
+ dispY *= -1;
+
+ if( !isNaN(midX) && !isNaN(midY) ){
+ drawArrowhead( 'mid-source', midX, midY, dispX, dispY );
+ }
+
+ dispX = endX - tgtPos.x;
+ dispY = endY - tgtPos.y;
+
+ if( !isHaystack && !isNaN(endX) && !isNaN(endY) && !isNaN(dispX) && !isNaN(dispY) ){
+ drawArrowhead( 'target', endX, endY, dispX, dispY );
+ }
+ };
+
+ // Draw arrowshape
+ CanvasRenderer.prototype.drawArrowShape = function(edge, arrowType, context, fill, edgeWidth, shape, x, y, dispX, dispY) {
+ var usePaths = CanvasRenderer.usePaths();
+ var rs = edge._private.rscratch;
+ var pathCacheHit = false;
+ var path;
+ var canvasContext = context;
+ var translation = { x: x, y: y };
+
+ // Negative of the angle
+ var angle = Math.asin(dispY / (Math.sqrt(dispX * dispX + dispY * dispY)));
+
+ if (dispX < 0) {
+ angle = angle + Math.PI / 2;
+ } else {
+ angle = - (Math.PI / 2 + angle);
+ }
+
+ var size = this.getArrowWidth( edgeWidth );
+ var shapeImpl = CanvasRenderer.arrowShapes[shape];
+
+ // context.translate(x, y);
+
+ if( usePaths ){
+ var pathCacheKey = size + '$' + shape + '$' + angle + '$' + x + '$' + y;
+ rs.arrowPathCacheKey = rs.arrowPathCacheKey || {};
+ rs.arrowPathCache = rs.arrowPathCache || {};
+
+ var alreadyCached = rs.arrowPathCacheKey[arrowType] === pathCacheKey;
+ if( alreadyCached ){
+ path = context = rs.arrowPathCache[arrowType];
+ pathCacheHit = true;
+ } else {
+ path = context = new Path2D();
+ rs.arrowPathCacheKey[arrowType] = pathCacheKey;
+ rs.arrowPathCache[arrowType] = path;
+ }
+ }
+
+ if( context.beginPath ){ context.beginPath(); }
+
+ if( !pathCacheHit ){
+ shapeImpl.draw(context, size, angle, translation);
+ }
+
+ if( !shapeImpl.leavePathOpen && context.closePath ){
+ context.closePath();
+ }
+
+ context = canvasContext;
+
+ if( fill === 'filled' || fill === 'both' ){
+ if( usePaths ){
+ context.fill( path );
+ } else {
+ context.fill();
+ }
+ }
+
+ if( fill === 'hollow' || fill === 'both' ){
+ context.lineWidth = ( shapeImpl.matchEdgeWidth ? edgeWidth : 1 );
+ context.lineJoin = 'miter';
+
+ if( usePaths ){
+ context.stroke( path );
+ } else {
+ context.stroke();
+ }
+
+ }
+
+ // context.translate(-x, -y);
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ CanvasRenderer.prototype.getCachedImage = function(url, onLoad) {
+ var r = this;
+ var imageCache = r.imageCache = r.imageCache || {};
+
+ if( imageCache[url] && imageCache[url].image ){
+ return imageCache[url].image;
+ }
+
+ var cache = imageCache[url] = imageCache[url] || {};
+
+ var image = cache.image = new Image();
+ image.addEventListener('load', onLoad);
+ image.src = url;
+
+ return image;
+ };
+
+ CanvasRenderer.prototype.drawInscribedImage = function(context, img, node) {
+ var r = this;
+ var nodeX = node._private.position.x;
+ var nodeY = node._private.position.y;
+ var style = node._private.style;
+ var fit = style['background-fit'].value;
+ var xPos = style['background-position-x'];
+ var yPos = style['background-position-y'];
+ var repeat = style['background-repeat'].value;
+ var nodeW = node.width();
+ var nodeH = node.height();
+ var rs = node._private.rscratch;
+ var clip = style['background-clip'].value;
+ var shouldClip = clip === 'node';
+ var imgOpacity = style['background-image-opacity'].value;
+
+ var w = img.width;
+ var h = img.height;
+
+ if( fit === 'contain' ){
+ var scale = Math.min( nodeW/w, nodeH/h );
+
+ w *= scale;
+ h *= scale;
+
+ } else if( fit === 'cover' ){
+ var scale = Math.max( nodeW/w, nodeH/h );
+
+ w *= scale;
+ h *= scale;
+ }
+
+ var x = (nodeX - nodeW/2); // left
+ if( xPos.units === '%' ){
+ x += (nodeW - w) * xPos.value/100;
+ } else {
+ x += xPos.pxValue;
+ }
+
+ var y = (nodeY - nodeH/2); // top
+ if( yPos.units === '%' ){
+ y += (nodeH - h) * yPos.value/100;
+ } else {
+ y += yPos.pxValue;
+ }
+
+ if( rs.pathCache ){
+ x -= nodeX;
+ y -= nodeY;
+
+ nodeX = 0;
+ nodeY = 0;
+ }
+
+ var gAlpha = context.globalAlpha;
+
+ context.globalAlpha = imgOpacity;
+
+ if( repeat === 'no-repeat' ){
+
+ if( shouldClip ){
+ context.save();
+
+ if( rs.pathCache ){
+ context.clip( rs.pathCache );
+ } else {
+ CanvasRenderer.nodeShapes[r.getNodeShape(node)].drawPath(
+ context,
+ nodeX, nodeY,
+ nodeW, nodeH);
+
+ context.clip();
+ }
+ }
+
+ context.drawImage( img, 0, 0, img.width, img.height, x, y, w, h );
+
+ if( shouldClip ){
+ context.restore();
+ }
+ } else {
+ var pattern = context.createPattern( img, repeat );
+ context.fillStyle = pattern;
+
+ CanvasRenderer.nodeShapes[r.getNodeShape(node)].drawPath(
+ context,
+ nodeX, nodeY,
+ nodeW, nodeH);
+
+ context.translate(x, y);
+ context.fill();
+ context.translate(-x, -y);
+ }
+
+ context.globalAlpha = gAlpha;
+
+ };
+
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ // Draw edge text
+ CanvasRenderer.prototype.drawEdgeText = function(context, edge) {
+ var text = edge._private.style['content'].strValue;
+
+ if( !text || text.match(/^\s+$/) ){
+ return;
+ }
+
+ if( this.hideEdgesOnViewport && (this.dragData.didDrag || this.pinching || this.hoverData.dragging || this.data.wheel || this.swipePanning) ){ return; } // save cycles on pinching
+
+ var computedSize = edge._private.style['font-size'].pxValue * edge.cy().zoom();
+ var minSize = edge._private.style['min-zoomed-font-size'].pxValue;
+
+ if( computedSize < minSize ){
+ return;
+ }
+
+ // Calculate text draw position
+
+ context.textAlign = 'center';
+ context.textBaseline = 'middle';
+
+ // this.recalculateEdgeLabelProjection( edge );
+
+ var rs = edge._private.rscratch;
+ this.drawText(context, edge, rs.labelX, rs.labelY);
+ };
+
+ // Draw node text
+ CanvasRenderer.prototype.drawNodeText = function(context, node) {
+ var text = node._private.style['content'].strValue;
+
+ if ( !text || text.match(/^\s+$/) ) {
+ return;
+ }
+
+ var computedSize = node._private.style['font-size'].pxValue * node.cy().zoom();
+ var minSize = node._private.style['min-zoomed-font-size'].pxValue;
+
+ if( computedSize < minSize ){
+ return;
+ }
+
+ // this.recalculateNodeLabelProjection( node );
+
+ var textHalign = node._private.style['text-halign'].strValue;
+ var textValign = node._private.style['text-valign'].strValue;
+ var rs = node._private.rscratch;
+
+ switch( textHalign ){
+ case 'left':
+ context.textAlign = 'right';
+ break;
+
+ case 'right':
+ context.textAlign = 'left';
+ break;
+
+ default: // e.g. center
+ context.textAlign = 'center';
+ }
+
+ switch( textValign ){
+ case 'top':
+ context.textBaseline = 'bottom';
+ break;
+
+ case 'bottom':
+ context.textBaseline = 'top';
+ break;
+
+ default: // e.g. center
+ context.textBaseline = 'middle';
+ }
+
+ this.drawText(context, node, rs.labelX, rs.labelY);
+ };
+
+ CanvasRenderer.prototype.getFontCache = function(context){
+ var cache;
+
+ this.fontCaches = this.fontCaches || [];
+
+ for( var i = 0; i < this.fontCaches.length; i++ ){
+ cache = this.fontCaches[i];
+
+ if( cache.context === context ){
+ return cache;
+ }
+ }
+
+ cache = {
+ context: context
+ };
+ this.fontCaches.push(cache);
+
+ return cache;
+ };
+
+ // set up canvas context with font
+ // returns transformed text string
+ CanvasRenderer.prototype.setupTextStyle = function( context, element ){
+ // Font style
+ var parentOpacity = element.effectiveOpacity();
+ var style = element._private.style;
+ var labelStyle = style['font-style'].strValue;
+ var labelSize = style['font-size'].pxValue + 'px';
+ var labelFamily = style['font-family'].strValue;
+ var labelWeight = style['font-weight'].strValue;
+ var opacity = style['text-opacity'].value * style['opacity'].value * parentOpacity;
+ var color = style['color'].value;
+ var outlineColor = style['text-outline-color'].value;
+
+ var fontCacheKey = element._private.fontKey;
+ var cache = this.getFontCache(context);
+
+ if( cache.key !== fontCacheKey ){
+ context.font = labelStyle + ' ' + labelWeight + ' ' + labelSize + ' ' + labelFamily;
+
+ cache.key = fontCacheKey;
+ }
+
+ var text = String(style['content'].value);
+ var textTransform = style['text-transform'].value;
+
+ if (textTransform == 'none') {
+ } else if (textTransform == 'uppercase') {
+ text = text.toUpperCase();
+ } else if (textTransform == 'lowercase') {
+ text = text.toLowerCase();
+ }
+
+ // Calculate text draw position based on text alignment
+
+ // so text outlines aren't jagged
+ context.lineJoin = 'round';
+
+ this.fillStyle(context, color[0], color[1], color[2], opacity);
+
+ this.strokeStyle(context, outlineColor[0], outlineColor[1], outlineColor[2], opacity);
+
+ return text;
+ };
+
+ // Draw text
+ CanvasRenderer.prototype.drawText = function(context, element, textX, textY) {
+ var style = element._private.style;
+ var parentOpacity = element.effectiveOpacity();
+ if( parentOpacity === 0 ){ return; }
+
+ var text = this.setupTextStyle( context, element );
+
+ if ( text != null && !isNaN(textX) && !isNaN(textY) ) {
+
+ var lineWidth = 2 * style['text-outline-width'].value; // *2 b/c the stroke is drawn centred on the middle
+ if (lineWidth > 0) {
+ context.lineWidth = lineWidth;
+ context.strokeText(text, textX, textY);
+ }
+
+ context.fillText(text, textX, textY);
+ }
+ };
+
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ // Draw node
+ CanvasRenderer.prototype.drawNode = function(context, node, drawOverlayInstead) {
+
+ var r = this;
+ var nodeWidth, nodeHeight;
+ var style = node._private.style;
+ var rs = node._private.rscratch;
+
+ var usePaths = CanvasRenderer.usePaths();
+ var canvasContext = context;
+ var path;
+ var pathCacheHit = false;
+
+ var overlayPadding = style['overlay-padding'].pxValue;
+ var overlayOpacity = style['overlay-opacity'].value;
+ var overlayColor = style['overlay-color'].value;
+
+ if( drawOverlayInstead && overlayOpacity === 0 ){ // exit early if drawing overlay but none to draw
+ return;
+ }
+
+ var parentOpacity = node.effectiveOpacity();
+ if( parentOpacity === 0 ){ return; }
+
+ nodeWidth = this.getNodeWidth(node);
+ nodeHeight = this.getNodeHeight(node);
+
+ context.lineWidth = style['border-width'].pxValue;
+
+ if( drawOverlayInstead === undefined || !drawOverlayInstead ){
+
+ // Node color & opacity
+
+ var bgColor = style['background-color'].value;
+ var borderColor = style['border-color'].value;
+ var borderStyle = style['border-style'].value;
+
+ this.fillStyle(context, bgColor[0], bgColor[1], bgColor[2], style['background-opacity'].value * style['opacity'].value * parentOpacity);
+
+ this.strokeStyle(context, borderColor[0], borderColor[1], borderColor[2], style['border-opacity'].value * style['opacity'].value * parentOpacity);
+
+ context.lineJoin = 'miter'; // so borders are square with the node shape
+
+ if( context.setLineDash ){ // for very outofdate browsers
+ switch( borderStyle ){
+ case 'dotted':
+ context.setLineDash([ 1, 1 ]);
+ break;
+
+ case 'dashed':
+ context.setLineDash([ 4, 2 ]);
+ break;
+
+ case 'solid':
+ case 'double':
+ context.setLineDash([ ]);
+ break;
+ }
+ }
+
+ //var image = this.getCachedImage('url');
+
+ var url = style['background-image'].value[2] ||
+ style['background-image'].value[1];
+
+ var styleShape = style['shape'].strValue;
+
+ var pos = node._private.position;
+
+ if( usePaths ){
+ var pathCacheKey = styleShape + '$' + nodeWidth +'$' + nodeHeight;
+
+ context.translate( pos.x, pos.y );
+
+ if( rs.pathCacheKey === pathCacheKey ){
+ path = context = rs.pathCache;
+ pathCacheHit = true;
+ } else {
+ path = context = new Path2D();
+ rs.pathCacheKey = pathCacheKey;
+ rs.pathCache = path;
+ }
+ }
+
+ if( !pathCacheHit ){
+
+ var npos = pos;
+
+ if( usePaths ){
+ npos = {
+ x: 0,
+ y: 0
+ };
+ }
+
+ CanvasRenderer.nodeShapes[this.getNodeShape(node)].drawPath(
+ context,
+ npos.x,
+ npos.y,
+ nodeWidth,
+ nodeHeight);
+ }
+
+ context = canvasContext;
+
+ if( usePaths ){
+ context.fill( path );
+ } else {
+ context.fill();
+ }
+
+ if (url !== undefined) {
+
+ // get image, and if not loaded then ask to redraw when later loaded
+ var image = this.getCachedImage(url, function(){
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ r.redraw();
+ });
+
+ if( image.complete ){
+ this.drawInscribedImage(context, image, node);
+ }
+
+ }
+
+ var darkness = style['background-blacken'].value;
+ var borderWidth = style['border-width'].pxValue;
+
+ if( this.hasPie(node) ){
+ this.drawPie(context, node);
+
+ // redraw path for blacken and border
+ if( darkness !== 0 || borderWidth !== 0 ){
+
+ if( !usePaths ){
+ CanvasRenderer.nodeShapes[this.getNodeShape(node)].drawPath(
+ context,
+ pos.x,
+ pos.y,
+ nodeWidth,
+ nodeHeight);
+ }
+ }
+ }
+
+ if( darkness > 0 ){
+ this.fillStyle(context, 0, 0, 0, darkness);
+
+ if( usePaths ){
+ context.fill( path );
+ } else {
+ context.fill();
+ }
+
+ } else if( darkness < 0 ){
+ this.fillStyle(context, 255, 255, 255, -darkness);
+
+ if( usePaths ){
+ context.fill( path );
+ } else {
+ context.fill();
+ }
+ }
+
+ // Border width, draw border
+ if (borderWidth > 0) {
+
+ if( usePaths ){
+ context.stroke( path );
+ } else {
+ context.stroke();
+ }
+
+ if( borderStyle === 'double' ){
+ context.lineWidth = style['border-width'].pxValue/3;
+
+ var gco = context.globalCompositeOperation;
+ context.globalCompositeOperation = 'destination-out';
+
+ if( usePaths ){
+ context.stroke( path );
+ } else {
+ context.stroke();
+ }
+
+ context.globalCompositeOperation = gco;
+ }
+
+ }
+
+ if( usePaths ){
+ context.translate( -pos.x, -pos.y );
+ }
+
+ // reset in case we changed the border style
+ if( context.setLineDash ){ // for very outofdate browsers
+ context.setLineDash([ ]);
+ }
+
+ // draw the overlay
+ } else {
+
+ if( overlayOpacity > 0 ){
+ this.fillStyle(context, overlayColor[0], overlayColor[1], overlayColor[2], overlayOpacity);
+
+ CanvasRenderer.nodeShapes['roundrectangle'].drawPath(
+ context,
+ node._private.position.x,
+ node._private.position.y,
+ nodeWidth + overlayPadding * 2,
+ nodeHeight + overlayPadding * 2
+ );
+
+ context.fill();
+ }
+ }
+
+ };
+
+ // does the node have at least one pie piece?
+ CanvasRenderer.prototype.hasPie = function(node){
+ node = node[0]; // ensure ele ref
+
+ return node._private.hasPie;
+ };
+
+ CanvasRenderer.prototype.drawPie = function(context, node){
+ node = node[0]; // ensure ele ref
+
+ var pieSize = node._private.style['pie-size'];
+ var nodeW = this.getNodeWidth( node );
+ var nodeH = this.getNodeHeight( node );
+ var x = node._private.position.x;
+ var y = node._private.position.y;
+ var radius = Math.min( nodeW, nodeH ) / 2; // must fit in node
+ var lastPercent = 0; // what % to continue drawing pie slices from on [0, 1]
+ var usePaths = CanvasRenderer.usePaths();
+
+ if( usePaths ){
+ x = 0;
+ y = 0;
+ }
+
+ if( pieSize.units === '%' ){
+ radius = radius * pieSize.value / 100;
+ } else if( pieSize.pxValue !== undefined ){
+ radius = pieSize.pxValue / 2;
+ }
+
+ for( var i = 1; i <= $$.style.pieBackgroundN; i++ ){ // 1..N
+ var size = node._private.style['pie-' + i + '-background-size'].value;
+ var color = node._private.style['pie-' + i + '-background-color'].value;
+ var opacity = node._private.style['pie-' + i + '-background-opacity'].value;
+ var percent = size / 100; // map integer range [0, 100] to [0, 1]
+ var angleStart = 1.5 * Math.PI + 2 * Math.PI * lastPercent; // start at 12 o'clock and go clockwise
+ var angleDelta = 2 * Math.PI * percent;
+ var angleEnd = angleStart + angleDelta;
+
+ // ignore if
+ // - zero size
+ // - we're already beyond the full circle
+ // - adding the current slice would go beyond the full circle
+ if( size === 0 || lastPercent >= 1 || lastPercent + percent > 1 ){
+ continue;
+ }
+
+ context.beginPath();
+ context.moveTo(x, y);
+ context.arc( x, y, radius, angleStart, angleEnd );
+ context.closePath();
+
+ this.fillStyle(context, color[0], color[1], color[2], opacity);
+
+ context.fill();
+
+ lastPercent += percent;
+ }
+
+ };
+
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ // var isFirefox = typeof InstallTrigger !== 'undefined';
+
+ CanvasRenderer.prototype.getPixelRatio = function(){
+ var context = this.data.contexts[0];
+
+ if( this.forcedPixelRatio != null ){
+ return this.forcedPixelRatio;
+ }
+
+ var backingStore = context.backingStorePixelRatio ||
+ context.webkitBackingStorePixelRatio ||
+ context.mozBackingStorePixelRatio ||
+ context.msBackingStorePixelRatio ||
+ context.oBackingStorePixelRatio ||
+ context.backingStorePixelRatio || 1;
+
+ //console.log(window.devicePixelRatio, backingStore);
+
+ // if( isFirefox ){ // because ff can't scale canvas properly
+ // return 1;
+ // }
+
+ return (window.devicePixelRatio || 1) / backingStore;
+ };
+
+ CanvasRenderer.prototype.paintCache = function(context){
+ var caches = this.paintCaches = this.paintCaches || [];
+ var needToCreateCache = true;
+ var cache;
+
+ for(var i = 0; i < caches.length; i++ ){
+ cache = caches[i];
+
+ if( cache.context === context ){
+ needToCreateCache = false;
+ break;
+ }
+ }
+
+ if( needToCreateCache ){
+ cache = {
+ context: context
+ };
+ caches.push( cache );
+ }
+
+ return cache;
+ };
+
+ CanvasRenderer.prototype.fillStyle = function(context, r, g, b, a){
+ context.fillStyle = 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
+
+ // turn off for now, seems context does its own caching
+
+ // var cache = this.paintCache(context);
+
+ // var fillStyle = 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
+
+ // if( cache.fillStyle !== fillStyle ){
+ // context.fillStyle = cache.fillStyle = fillStyle;
+ // }
+ };
+
+ CanvasRenderer.prototype.strokeStyle = function(context, r, g, b, a){
+ context.strokeStyle = 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
+
+ // turn off for now, seems context does its own caching
+
+ // var cache = this.paintCache(context);
+
+ // var strokeStyle = 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
+
+ // if( cache.strokeStyle !== strokeStyle ){
+ // context.strokeStyle = cache.strokeStyle = strokeStyle;
+ // }
+ };
+
+ // Resize canvas
+ CanvasRenderer.prototype.matchCanvasSize = function(container) {
+ var data = this.data;
+ var width = container.clientWidth;
+ var height = container.clientHeight;
+ var pixelRatio = this.getPixelRatio();
+ var canvasWidth = width * pixelRatio;
+ var canvasHeight = height * pixelRatio;
+ var canvas;
+
+ if( canvasWidth === this.canvasWidth && canvasHeight === this.canvasHeight ){
+ return; // save cycles if same
+ }
+
+ this.fontCaches = null; // resizing resets the style
+
+ var canvasContainer = data.canvasContainer;
+ canvasContainer.style.width = width + 'px';
+ canvasContainer.style.height = height + 'px';
+
+ for (var i = 0; i < CanvasRenderer.CANVAS_LAYERS; i++) {
+
+ canvas = data.canvases[i];
+
+ if (canvas.width !== canvasWidth || canvas.height !== canvasHeight) {
+
+ canvas.width = canvasWidth;
+ canvas.height = canvasHeight;
+
+ canvas.style.width = width + 'px';
+ canvas.style.height = height + 'px';
+ }
+ }
+
+ for (var i = 0; i < CanvasRenderer.BUFFER_COUNT; i++) {
+
+ canvas = data.bufferCanvases[i];
+
+ if (canvas.width !== canvasWidth || canvas.height !== canvasHeight) {
+
+ canvas.width = canvasWidth;
+ canvas.height = canvasHeight;
+
+ canvas.style.width = width + 'px';
+ canvas.style.height = height + 'px';
+ }
+ }
+
+ this.textureMult = 1;
+ if( pixelRatio <= 1 ){
+ canvas = data.bufferCanvases[ CanvasRenderer.TEXTURE_BUFFER ];
+
+ this.textureMult = 2;
+ canvas.width = canvasWidth * this.textureMult;
+ canvas.height = canvasHeight * this.textureMult;
+ }
+
+ this.canvasWidth = canvasWidth;
+ this.canvasHeight = canvasHeight;
+
+ };
+
+ CanvasRenderer.prototype.renderTo = function( cxt, zoom, pan, pxRatio ){
+ this.redraw({
+ forcedContext: cxt,
+ forcedZoom: zoom,
+ forcedPan: pan,
+ drawAllLayers: true,
+ forcedPxRatio: pxRatio
+ });
+ };
+
+ CanvasRenderer.prototype.timeToRender = function(){
+ return this.redrawTotalTime / this.redrawCount;
+ };
+
+ CanvasRenderer.minRedrawLimit = 1000/60; // people can't see much better than 60fps
+ CanvasRenderer.maxRedrawLimit = 1000; // don't cap max b/c it's more important to be responsive than smooth
+ CanvasRenderer.motionBlurDelay = 100;
+
+ // Redraw frame
+ CanvasRenderer.prototype.redraw = function( options ) {
+ options = options || {};
+
+ // console.log('redraw');
+
+ var forcedContext = options.forcedContext;
+ var drawAllLayers = options.drawAllLayers;
+ var drawOnlyNodeLayer = options.drawOnlyNodeLayer;
+ var forcedZoom = options.forcedZoom;
+ var forcedPan = options.forcedPan;
+ var r = this;
+ var pixelRatio = options.forcedPxRatio === undefined ? this.getPixelRatio() : options.forcedPxRatio;
+ var cy = r.data.cy; var data = r.data;
+ var needDraw = data.canvasNeedsRedraw;
+ var motionBlur = options.motionBlur !== undefined ? options.motionBlur : r.motionBlur;
+ motionBlur = motionBlur && !forcedContext && r.motionBlurEnabled;
+
+ if( r.motionBlurTimeout ){
+ clearTimeout( r.motionBlurTimeout );
+ }
+
+ if( this.redrawTimeout ){
+ clearTimeout( this.redrawTimeout );
+ }
+ this.redrawTimeout = null;
+
+ if( this.averageRedrawTime === undefined ){ this.averageRedrawTime = 0; }
+
+ var minRedrawLimit = CanvasRenderer.minRedrawLimit;
+ var maxRedrawLimit = CanvasRenderer.maxRedrawLimit;
+
+ var redrawLimit = this.averageRedrawTime; // estimate the ideal redraw limit based on how fast we can draw
+ redrawLimit = minRedrawLimit > redrawLimit ? minRedrawLimit : redrawLimit;
+ redrawLimit = redrawLimit < maxRedrawLimit ? redrawLimit : maxRedrawLimit;
+
+ //console.log('--\nideal: %i; effective: %i', this.averageRedrawTime, redrawLimit);
+
+ if( this.lastDrawTime === undefined ){ this.lastDrawTime = 0; }
+
+ var nowTime = +new Date();
+ var timeElapsed = nowTime - this.lastDrawTime;
+ var callAfterLimit = timeElapsed >= redrawLimit;
+
+ if( !forcedContext ){
+ if( !callAfterLimit || this.currentlyDrawing ){
+ // console.log('-- skip');
+
+ // we have new things to draw but we're busy, so try again when possibly free
+ this.redrawTimeout = setTimeout(function(){
+ r.redraw();
+ }, redrawLimit);
+ return;
+ }
+
+ this.lastDrawTime = nowTime;
+ this.currentlyDrawing = true;
+ }
+
+
+ var startTime = +new Date();
+
+ //console.log('-- redraw --')
+
+
+ function drawToContext(){
+ // startTime = +new Date();
+ // console.profile('draw' + startTime)
+ var edges = r.getCachedEdges();
+ var coreStyle = cy.style()._private.coreStyle;
+
+ var zoom = cy.zoom();
+ var effectiveZoom = forcedZoom !== undefined ? forcedZoom : zoom;
+ var pan = cy.pan();
+ var effectivePan = {
+ x: pan.x,
+ y: pan.y
+ };
+
+ if( forcedPan ){
+ effectivePan = forcedPan;
+ }
+
+ // apply pixel ratio
+
+ effectiveZoom *= pixelRatio;
+ effectivePan.x *= pixelRatio;
+ effectivePan.y *= pixelRatio;
+
+ var eles = {
+ drag: {
+ nodes: [],
+ edges: [],
+ eles: []
+ },
+ nondrag: {
+ nodes: [],
+ edges: [],
+ eles: []
+ }
+ };
+
+ function setContextTransform(context, clear){
+ context.setTransform(1, 0, 0, 1, 0, 0);
+
+ if( clear === 'motionBlur' ){
+ var gco = context.globalCompositeOperation;
+
+ context.globalCompositeOperation = 'destination-out';
+ r.fillStyle( context, 255, 255, 255, 0.666 );
+ context.fillRect(0, 0, r.canvasWidth, r.canvasHeight);
+
+ context.globalCompositeOperation = gco;
+ } else if( !forcedContext && (clear === undefined || clear) ){
+ context.clearRect(0, 0, r.canvasWidth, r.canvasHeight);
+ }
+
+ if( !drawAllLayers ){
+ context.translate(effectivePan.x, effectivePan.y);
+ context.scale(effectiveZoom, effectiveZoom);
+ }
+ if( forcedPan ){
+ context.translate(forcedPan.x, forcedPan.y);
+ }
+ if( forcedZoom ){
+ context.scale(forcedZoom, forcedZoom);
+ }
+ }
+
+ var textureDraw = r.textureOnViewport && !forcedContext && (r.pinching || r.hoverData.dragging || r.swipePanning || r.data.wheelZooming);
+
+ if( textureDraw ){
+
+ var bb;
+
+ if( !r.textureCache ){
+ r.textureCache = {};
+
+ bb = r.textureCache.bb = cy.elements().boundingBox();
+
+ r.textureCache.texture = r.data.bufferCanvases[ CanvasRenderer.TEXTURE_BUFFER ];
+
+ var cxt = r.data.bufferContexts[ CanvasRenderer.TEXTURE_BUFFER ];
+
+ cxt.setTransform(1, 0, 0, 1, 0, 0);
+ cxt.clearRect(0, 0, r.canvasWidth * r.textureMult, r.canvasHeight * r.textureMult);
+
+ r.redraw({
+ forcedContext: cxt,
+ drawOnlyNodeLayer: true,
+ forcedPxRatio: pixelRatio * r.textureMult
+ });
+
+ var vp = r.textureCache.viewport = {
+ zoom: cy.zoom(),
+ pan: cy.pan(),
+ width: r.canvasWidth,
+ height: r.canvasHeight
+ };
+
+ vp.mpan = {
+ x: (0 - vp.pan.x)/vp.zoom,
+ y: (0 - vp.pan.y)/vp.zoom
+ };
+ }
+
+ needDraw[CanvasRenderer.DRAG] = false;
+ needDraw[CanvasRenderer.NODE] = false;
+
+ var context = data.contexts[CanvasRenderer.NODE];
+
+ var texture = r.textureCache.texture;
+ var vp = r.textureCache.viewport;
+ bb = r.textureCache.bb;
+
+ context.setTransform(1, 0, 0, 1, 0, 0);
+ context.clearRect(0, 0, vp.width, vp.height);
+
+ var outsideBgColor = coreStyle['outside-texture-bg-color'].value;
+ var outsideBgOpacity = coreStyle['outside-texture-bg-opacity'].value;
+ r.fillStyle( context, outsideBgColor[0], outsideBgColor[1], outsideBgColor[2], outsideBgOpacity );
+ context.fillRect( 0, 0, vp.width, vp.height );
+
+ var zoom = cy.zoom();
+
+ setContextTransform( context, false );
+
+ context.clearRect( vp.mpan.x, vp.mpan.y, vp.width/vp.zoom/pixelRatio, vp.height/vp.zoom/pixelRatio );
+ context.drawImage( texture, vp.mpan.x, vp.mpan.y, vp.width/vp.zoom/pixelRatio, vp.height/vp.zoom/pixelRatio );
+
+ } else if( r.textureOnViewport && !forcedContext ){ // clear the cache since we don't need it
+ r.textureCache = null;
+ }
+
+ var vpManip = (r.pinching || r.hoverData.dragging || r.swipePanning || r.data.wheelZooming || r.hoverData.draggingEles);
+ var hideEdges = r.hideEdgesOnViewport && vpManip;
+ var hideLabels = r.hideLabelsOnViewport && vpManip;
+
+ if (needDraw[CanvasRenderer.DRAG] || needDraw[CanvasRenderer.NODE] || drawAllLayers || drawOnlyNodeLayer) {
+ //NB : VERY EXPENSIVE
+
+ if( hideEdges ){
+ } else {
+ r.findEdgeControlPoints(edges);
+ }
+
+ var zEles = r.getCachedZSortedEles();
+ var extent = cy.extent();
+
+ for (var i = 0; i < zEles.length; i++) {
+ var ele = zEles[i];
+ var list;
+ var bb = forcedContext ? null : ele.boundingBox();
+ var insideExtent = forcedContext ? true : $$.math.boundingBoxesIntersect( extent, bb );
+
+ if( !insideExtent ){ continue; } // no need to render
+
+ if ( ele._private.rscratch.inDragLayer ) {
+ list = eles.drag;
+ } else {
+ list = eles.nondrag;
+ }
+
+ list.eles.push( ele );
+ }
+
+ }
+
+
+ function drawElements( list, context ){
+ var eles = list.eles;
+
+ for( var i = 0; i < eles.length; i++ ){
+ var ele = eles[i];
+
+ if( ele.isNode() ){
+ r.drawNode(context, ele);
+
+ if( !hideLabels ){
+ r.drawNodeText(context, ele);
+ }
+
+ r.drawNode(context, ele, true);
+ } else if( !hideEdges ) {
+ r.drawEdge(context, ele);
+
+ if( !hideLabels ){
+ r.drawEdgeText(context, ele);
+ }
+
+ r.drawEdge(context, ele, true);
+ }
+
+
+ }
+
+ }
+
+ var nodeLayerNeedsMotionClear = needDraw[CanvasRenderer.DRAG] && !needDraw[CanvasRenderer.NODE] && motionBlur && !r.clearedNodeLayerForMotionBlur;
+ if( nodeLayerNeedsMotionClear ){ r.clearedNodeLayerForMotionBlur = true; }
+
+ if( needDraw[CanvasRenderer.NODE] || drawAllLayers || drawOnlyNodeLayer || nodeLayerNeedsMotionClear ){
+ // console.log('redrawing node layer');
+
+ var context = forcedContext || data.contexts[CanvasRenderer.NODE];
+
+ setContextTransform( context, motionBlur && !nodeLayerNeedsMotionClear ? 'motionBlur' : undefined );
+ drawElements(eles.nondrag, context);
+
+ if( !drawAllLayers ){
+ needDraw[CanvasRenderer.NODE] = false;
+ }
+ }
+
+ if ( !drawOnlyNodeLayer && (needDraw[CanvasRenderer.DRAG] || drawAllLayers) ) {
+
+ var context = forcedContext || data.contexts[CanvasRenderer.DRAG];
+
+ setContextTransform( context, motionBlur ? 'motionBlur' : undefined );
+ drawElements(eles.drag, context);
+
+ if( !drawAllLayers ){
+ needDraw[CanvasRenderer.DRAG] = false;
+ }
+ }
+
+ if( r.showFps || (!drawOnlyNodeLayer && (needDraw[CanvasRenderer.SELECT_BOX] && !drawAllLayers)) ) {
+ // console.log('redrawing selection box');
+
+ var context = forcedContext || data.contexts[CanvasRenderer.SELECT_BOX];
+
+ setContextTransform( context );
+
+ if (data.select[4] == 1) {
+ var zoom = data.cy.zoom();
+ var borderWidth = coreStyle['selection-box-border-width'].value / zoom;
+
+ context.lineWidth = borderWidth;
+ context.fillStyle = "rgba("
+ + coreStyle['selection-box-color'].value[0] + ","
+ + coreStyle['selection-box-color'].value[1] + ","
+ + coreStyle['selection-box-color'].value[2] + ","
+ + coreStyle['selection-box-opacity'].value + ")";
+
+ context.fillRect(
+ data.select[0],
+ data.select[1],
+ data.select[2] - data.select[0],
+ data.select[3] - data.select[1]);
+
+ if (borderWidth > 0) {
+ context.strokeStyle = "rgba("
+ + coreStyle['selection-box-border-color'].value[0] + ","
+ + coreStyle['selection-box-border-color'].value[1] + ","
+ + coreStyle['selection-box-border-color'].value[2] + ","
+ + coreStyle['selection-box-opacity'].value + ")";
+
+ context.strokeRect(
+ data.select[0],
+ data.select[1],
+ data.select[2] - data.select[0],
+ data.select[3] - data.select[1]);
+ }
+ }
+
+ if( data.bgActivePosistion ){
+ var zoom = data.cy.zoom();
+ var pos = data.bgActivePosistion;
+
+ context.fillStyle = "rgba("
+ + coreStyle['active-bg-color'].value[0] + ","
+ + coreStyle['active-bg-color'].value[1] + ","
+ + coreStyle['active-bg-color'].value[2] + ","
+ + coreStyle['active-bg-opacity'].value + ")";
+
+ context.beginPath();
+ context.arc(pos.x, pos.y, coreStyle['active-bg-size'].pxValue / zoom, 0, 2 * Math.PI);
+ context.fill();
+ }
+
+ var timeToRender = r.averageRedrawTime;
+ if( r.showFps && timeToRender ){
+ timeToRender = Math.round( timeToRender );
+ var fps = Math.round(1000/timeToRender);
+
+ context.setTransform(1, 0, 0, 1, 0, 0);
+
+ //context.font = '20px helvetica';
+ context.fillStyle = 'rgba(255, 0, 0, 0.75)';
+ context.strokeStyle = 'rgba(255, 0, 0, 0.75)';
+ context.lineWidth = 1;
+ context.fillText( '1 frame = ' + timeToRender + ' ms = ' + fps + ' fps', 0, 20);
+
+ var maxFps = 60;
+ context.strokeRect(0, 30, 250, 20);
+ context.fillRect(0, 30, 250 * Math.min(fps/maxFps, 1), 20);
+ }
+
+ if( !drawAllLayers ){
+ needDraw[CanvasRenderer.SELECT_BOX] = false;
+ }
+ }
+
+
+ var endTime = +new Date();
+
+ if( r.averageRedrawTime === undefined ){
+ r.averageRedrawTime = endTime - startTime;
+ }
+
+ if( r.redrawCount === undefined ){
+ r.redrawCount = 0;
+ }
+
+ r.redrawCount++;
+
+ if( r.redrawTotalTime === undefined ){
+ r.redrawTotalTime = 0;
+ }
+
+ r.redrawTotalTime += endTime - startTime;
+ r.lastRedrawTime = endTime - startTime;
+
+ // use a weighted average with a bias from the previous average so we don't spike so easily
+ r.averageRedrawTime = r.averageRedrawTime/2 + (endTime - startTime)/2;
+ //console.log('actual: %i, average: %i', endTime - startTime, this.averageRedrawTime);
+
+ r.currentlyDrawing = false;
+
+ // console.profileEnd('draw' + startTime)
+
+ if( r.clearingMotionBlur ){
+ r.clearingMotionBlur = false;
+ r.motionBlurCleared = true;
+ r.motionBlur = true;
+ }
+
+ if( motionBlur ){
+ r.motionBlurTimeout = setTimeout(function(){
+ r.motionBlurTimeout = null;
+ // console.log('motion blur clear');
+
+ r.clearedNodeLayerForMotionBlur = false;
+ r.motionBlur = false;
+ r.clearingMotionBlur = true;
+
+ needDraw[CanvasRenderer.NODE] = true;
+ needDraw[CanvasRenderer.DRAG] = true;
+
+ r.redraw();
+ }, CanvasRenderer.motionBlurDelay);
+ }
+ } // draw to context
+
+ if( !forcedContext ){
+ $$.util.requestAnimationFrame(drawToContext); // makes direct renders to screen a bit more responsive
+ } else {
+ drawToContext();
+ }
+
+ if( !forcedContext && !r.initrender ){
+ r.initrender = true;
+ cy.trigger('initrender');
+ }
+
+ };
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ // @O Polygon drawing
+ CanvasRenderer.prototype.drawPolygonPath = function(
+ context, x, y, width, height, points) {
+
+ var halfW = width / 2;
+ var halfH = height / 2;
+
+ if( context.beginPath ){ context.beginPath(); }
+
+ context.moveTo( x + halfW * points[0], y + halfH * points[1] );
+
+ for (var i = 1; i < points.length / 2; i++) {
+ context.lineTo( x + halfW * points[i * 2], y + halfH * points[i * 2 + 1] );
+ }
+
+ context.closePath();
+ };
+
+ CanvasRenderer.prototype.drawPolygon = function(
+ context, x, y, width, height, points) {
+
+ // Draw path
+ this.drawPolygonPath(context, x, y, width, height, points);
+
+ // Fill path
+ context.fill();
+ };
+
+ // Round rectangle drawing
+ CanvasRenderer.prototype.drawRoundRectanglePath = function(
+ context, x, y, width, height, radius) {
+
+ var halfWidth = width / 2;
+ var halfHeight = height / 2;
+ var cornerRadius = $$.math.getRoundRectangleRadius(width, height);
+
+ if( context.beginPath ){ context.beginPath(); }
+
+ // Start at top middle
+ context.moveTo(x, y - halfHeight);
+ // Arc from middle top to right side
+ context.arcTo(x + halfWidth, y - halfHeight, x + halfWidth, y, cornerRadius);
+ // Arc from right side to bottom
+ context.arcTo(x + halfWidth, y + halfHeight, x, y + halfHeight, cornerRadius);
+ // Arc from bottom to left side
+ context.arcTo(x - halfWidth, y + halfHeight, x - halfWidth, y, cornerRadius);
+ // Arc from left side to topBorder
+ context.arcTo(x - halfWidth, y - halfHeight, x, y - halfHeight, cornerRadius);
+ // Join line
+ context.lineTo(x, y - halfHeight);
+
+
+ context.closePath();
+ };
+
+ CanvasRenderer.prototype.drawRoundRectangle = function(
+ context, x, y, width, height, radius) {
+
+ this.drawRoundRectanglePath(context, x, y, width, height, radius);
+
+ context.fill();
+ };
+
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ CanvasRenderer.prototype.createBuffer = function(w, h) {
+ var buffer = document.createElement('canvas');
+ buffer.width = w;
+ buffer.height = h;
+
+ return [buffer, buffer.getContext('2d')];
+ };
+
+ CanvasRenderer.prototype.bufferCanvasImage = function( options ){
+ var data = this.data;
+ var cy = data.cy;
+ var bb = cy.elements().boundingBox();
+ var width = options.full ? Math.ceil(bb.w) : this.data.container.clientWidth;
+ var height = options.full ? Math.ceil(bb.h) : this.data.container.clientHeight;
+ var scale = 1;
+
+ if( options.scale !== undefined ){
+ width *= options.scale;
+ height *= options.scale;
+
+ scale = options.scale;
+ }
+
+ var buffCanvas = document.createElement('canvas');
+
+ buffCanvas.width = width;
+ buffCanvas.height = height;
+
+ buffCanvas.style.width = width + 'px';
+ buffCanvas.style.height = height + 'px';
+
+ var buffCxt = buffCanvas.getContext('2d');
+
+ // Rasterize the layers, but only if container has nonzero size
+ if (width > 0 && height > 0) {
+
+ buffCxt.clearRect( 0, 0, width, height );
+
+ if( options.bg ){
+ buffCxt.fillStyle = options.bg;
+ buffCxt.rect( 0, 0, width, height );
+ buffCxt.fill();
+ }
+
+ buffCxt.globalCompositeOperation = 'source-over';
+
+ if( options.full ){ // draw the full bounds of the graph
+ this.redraw({
+ forcedContext: buffCxt,
+ drawAllLayers: true,
+ forcedZoom: scale,
+ forcedPan: { x: -bb.x1*scale, y: -bb.y1*scale },
+ forcedPxRatio: 1
+ });
+ } else { // draw the current view
+ var cyPan = cy.pan();
+ var pan = {
+ x: cyPan.x * scale,
+ y: cyPan.y * scale
+ };
+ var zoom = cy.zoom() * scale;
+
+ this.redraw({
+ forcedContext: buffCxt,
+ drawAllLayers: true,
+ forcedZoom: zoom,
+ forcedPan: pan,
+ forcedPxRatio: 1
+ });
+ }
+ }
+
+ return buffCanvas;
+ };
+
+ CanvasRenderer.prototype.png = function( options ){
+ return this.bufferCanvasImage( options ).toDataURL('image/png');
+ };
+
+})( cytoscape );
+;(function($$){ 'use strict';
+
+ var CanvasRenderer = $$('renderer', 'canvas');
+
+ CanvasRenderer.prototype.registerBinding = function(target, event, handler, useCapture){
+ this.bindings.push({
+ target: target,
+ event: event,
+ handler: handler,
+ useCapture: useCapture
+ });
+
+ target.addEventListener(event, handler, useCapture);
+ };
+
+ CanvasRenderer.prototype.nodeIsDraggable = function(node) {
+ if (node._private.style['opacity'].value !== 0
+ && node._private.style['visibility'].value == 'visible'
+ && node._private.style['display'].value == 'element'
+ && !node.locked()
+ && node.grabbable() ) {
+
+ return true;
+ }
+
+ return false;
+ };
+
+ CanvasRenderer.prototype.load = function() {
+ var r = this;
+
+ var getDragListIds = function(opts){
+ var listHasId;
+
+ if( opts.addToList && r.data.cy.hasCompoundNodes() ){ // only needed for compound graphs
+ if( !opts.addToList.hasId ){ // build ids lookup if doesn't already exist
+ opts.addToList.hasId = {};
+
+ for( var i = 0; i < opts.addToList.length; i++ ){
+ var ele = opts.addToList[i];
+
+ opts.addToList.hasId[ ele.id() ] = true;
+ }
+ }
+
+ listHasId = opts.addToList.hasId;
+ }
+
+ return listHasId || {};
+ };
+
+ // helper function to determine which child nodes and inner edges
+ // of a compound node to be dragged as well as the grabbed and selected nodes
+ var addDescendantsToDrag = function(node, opts){
+ if( !node._private.cy.hasCompoundNodes() ){
+ return;
+ }
+
+ var listHasId = getDragListIds( opts );
+
+ var innerNodes = node.descendants();
+
+ // TODO do not drag hidden children & children of hidden children?
+ for( var i = 0; i < innerNodes.size(); i++ ){
+ var iNode = innerNodes[i];
+ var _p = iNode._private;
+
+ if( opts.inDragLayer ){
+ _p.rscratch.inDragLayer = true;
+ }
+
+ if( opts.addToList && !listHasId[ iNode.id() ] ){
+ opts.addToList.push( iNode );
+ listHasId[ iNode.id() ] = true;
+
+ _p.grabbed = true;
+ }
+
+ var edges = _p.edges;
+ for( var j = 0; opts.inDragLayer && j < edges.length; j++ ){
+ edges[j]._private.rscratch.inDragLayer = true;
+ }
+ }
+ };
+
+ // adds the given nodes, and its edges to the drag layer
+ var addNodeToDrag = function(node, opts){
+
+ var _p = node._private;
+ var listHasId = getDragListIds( opts );
+
+ if( opts.inDragLayer ){
+ _p.rscratch.inDragLayer = true;
+ }
+
+ if( opts.addToList && !listHasId[ node.id() ] ){
+ opts.addToList.push( node );
+ listHasId[ node.id() ] = true;
+
+ _p.grabbed = true;
+ }
+
+ var edges = _p.edges;
+ for( var i = 0; opts.inDragLayer && i < edges.length; i++ ){
+ edges[i]._private.rscratch.inDragLayer = true;
+ }
+
+ addDescendantsToDrag( node, opts ); // always add to drag
+
+ // also add nodes and edges related to the topmost ancestor
+ updateAncestorsInDragLayer( node, {
+ inDragLayer: true
+ } );
+ };
+
+ // helper function to determine which ancestor nodes and edges should go
+ // to the drag layer (or should be removed from drag layer).
+ var updateAncestorsInDragLayer = function(node, opts) {
+ // find top-level parent
+ var parent = node;
+
+ if( !node._private.cy.hasCompoundNodes() ){
+ return;
+ }
+
+ while( parent.parent().nonempty() ){
+ parent = parent.parent()[0];
+ }
+
+ // no parent node: no nodes to add to the drag layer
+ if( parent == node ){
+ return;
+ }
+
+ var nodes = parent
+ .descendants()
+ .add( parent )
+ .not( node )
+ .not( node.descendants() )
+ ;
+
+ var edges = nodes.connectedEdges();
+
+ var listHasId = getDragListIds( opts );
+
+ for( var i = 0; i < nodes.size(); i++ ){
+ if( opts.inDragLayer !== undefined ){
+ nodes[i]._private.rscratch.inDragLayer = opts.inDragLayer;
+ }
+
+ if( opts.addToList && !listHasId[ nodes[i].id() ] ){
+ opts.addToList.push( nodes[i] );
+ listHasId[ nodes[i].id() ] = true;
+
+ nodes[i]._private.grabbed = true;
+ }
+ }
+
+ for( var j = 0; opts.inDragLayer !== undefined && j < edges.length; j++ ) {
+ edges[j]._private.rscratch.inDragLayer = opts.inDragLayer;
+ }
+ };
+
+ r.registerBinding(r.data.container, 'DOMNodeRemoved', function(e){
+ r.destroy();
+ });
+
+ // auto resize
+ r.registerBinding(window, 'resize', $$.util.debounce( function(e) {
+ r.invalidateContainerClientCoordsCache();
+
+ r.matchCanvasSize(r.data.container);
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ r.redraw();
+ }, 100 ) );
+
+ var invalCtnrBBOnScroll = function(domEle){
+ r.registerBinding(domEle, 'scroll', function(e){
+ r.invalidateContainerClientCoordsCache();
+ } );
+ };
+
+ var bbCtnr = r.data.cy.container();
+
+ for( ;; ){
+
+ invalCtnrBBOnScroll( bbCtnr );
+
+ if( bbCtnr.parentNode ){
+ bbCtnr = bbCtnr.parentNode;
+ } else {
+ break;
+ }
+
+ }
+
+ // stop right click menu from appearing on cy
+ r.registerBinding(r.data.container, 'contextmenu', function(e){
+ e.preventDefault();
+ });
+
+ var inBoxSelection = function(){
+ return r.data.select[4] !== 0;
+ };
+
+ // Primary key
+ r.registerBinding(r.data.container, 'mousedown', function(e) {
+ e.preventDefault();
+ r.hoverData.capture = true;
+ r.hoverData.which = e.which;
+
+ var cy = r.data.cy; var pos = r.projectIntoViewport(e.clientX, e.clientY);
+ var select = r.data.select;
+ var near = r.findNearestElement(pos[0], pos[1], true);
+ var draggedElements = r.dragData.possibleDragElements;
+ var grabEvent = new $$.Event('grab');
+
+ // Right click button
+ if( e.which == 3 ){
+
+ r.hoverData.cxtStarted = true;
+
+ var cxtEvt = new $$.Event(e, {
+ type: 'cxttapstart',
+ cyPosition: { x: pos[0], y: pos[1] }
+ });
+
+ if( near ){
+ near.activate();
+ near.trigger( cxtEvt );
+
+ r.hoverData.down = near;
+ } else {
+ cy.trigger( cxtEvt );
+ }
+
+ r.hoverData.downTime = (new Date()).getTime();
+ r.hoverData.cxtDragged = false;
+
+ // Primary button
+ } else if (e.which == 1) {
+
+ if( near ){
+ near.activate();
+ }
+
+ // Element dragging
+ {
+ // If something is under the cursor and it is draggable, prepare to grab it
+ if (near != null) {
+
+ if( r.nodeIsDraggable(near) ){
+
+ if ( near.isNode() && !near.selected() ){
+
+ draggedElements = r.dragData.possibleDragElements = [];
+ addNodeToDrag( near, { addToList: draggedElements } );
+
+ near.trigger(grabEvent);
+
+ } else if ( near.isNode() && near.selected() ){
+ draggedElements = r.dragData.possibleDragElements = [ ];
+
+ var selectedNodes = cy.$(function(){ return this.isNode() && this.selected(); });
+
+ for( var i = 0; i < selectedNodes.length; i++ ){
+
+ // Only add this selected node to drag if it is draggable, eg. has nonzero opacity
+ if( r.nodeIsDraggable( selectedNodes[i] ) ){
+ addNodeToDrag( selectedNodes[i], { addToList: draggedElements } );
+ }
+ }
+
+ near.trigger( grabEvent );
+ }
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ }
+
+ near
+ .trigger(new $$.Event(e, {
+ type: 'mousedown',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapstart',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmousedown',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ ;
+
+ } else if (near == null) {
+ cy
+ .trigger(new $$.Event(e, {
+ type: 'mousedown',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapstart',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmousedown',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ ;
+ }
+
+ r.hoverData.down = near;
+ r.hoverData.downTime = (new Date()).getTime();
+
+ }
+
+ // Selection box
+ if ( near == null || near.isEdge() ) {
+ select[4] = 1;
+ var timeUntilActive = Math.max( 0, CanvasRenderer.panOrBoxSelectDelay - (+new Date() - r.hoverData.downTime) );
+
+ clearTimeout( r.bgActiveTimeout );
+ r.bgActiveTimeout = setTimeout(function(){
+ if( near ){
+ near.unactivate();
+ }
+
+ r.data.bgActivePosistion = {
+ x: pos[0],
+ y: pos[1]
+ };
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+
+ r.redraw();
+ }, timeUntilActive);
+
+ }
+
+ }
+
+ // Initialize selection box coordinates
+ select[0] = select[2] = pos[0];
+ select[1] = select[3] = pos[1];
+
+ }, false);
+
+ r.registerBinding(window, 'mousemove', $$.util.throttle( function(e) {
+ var preventDefault = false;
+ var capture = r.hoverData.capture;
+
+ // save cycles if mouse events aren't to be captured
+ if ( !capture ){
+ var containerPageCoords = r.findContainerClientCoords();
+
+ if (e.clientX > containerPageCoords[0] && e.clientX < containerPageCoords[0] + r.canvasWidth
+ && e.clientY > containerPageCoords[1] && e.clientY < containerPageCoords[1] + r.canvasHeight
+ ) {
+ // inside container bounds so OK
+ } else {
+ return;
+ }
+
+ var cyContainer = r.data.container;
+ var target = e.target;
+ var tParent = target.parentNode;
+ var containerIsTarget = false;
+
+ while( tParent ){
+ if( tParent === cyContainer ){
+ containerIsTarget = true;
+ break;
+ }
+
+ tParent = tParent.parentNode;
+ }
+
+ if( !containerIsTarget ){ return; } // if target is outisde cy container, then this event is not for us
+ }
+
+ var cy = r.data.cy;
+ var pos = r.projectIntoViewport(e.clientX, e.clientY);
+ var select = r.data.select;
+
+ var near = null;
+ if( !r.hoverData.draggingEles ){
+ near = r.findNearestElement(pos[0], pos[1], true);
+ }
+ var last = r.hoverData.last;
+ var down = r.hoverData.down;
+
+ var disp = [pos[0] - select[2], pos[1] - select[3]];
+
+ var draggedElements = r.dragData.possibleDragElements;
+
+
+ preventDefault = true;
+
+ // Mousemove event
+ {
+ if (near != null) {
+ near
+ .trigger(new $$.Event(e, {
+ type: 'mousemove',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmousemove',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapdrag',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ ;
+
+ } else if (near == null) {
+ cy
+ .trigger(new $$.Event(e, {
+ type: 'mousemove',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmousemove',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapdrag',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ ;
+ }
+
+ }
+
+
+ // trigger context drag if rmouse down
+ if( r.hoverData.which === 3 ){
+ var cxtEvt = new $$.Event(e, {
+ type: 'cxtdrag',
+ cyPosition: { x: pos[0], y: pos[1] }
+ });
+
+ if( down ){
+ down.trigger( cxtEvt );
+ } else {
+ cy.trigger( cxtEvt );
+ }
+
+ r.hoverData.cxtDragged = true;
+
+ if( !r.hoverData.cxtOver || near !== r.hoverData.cxtOver ){
+
+ if( r.hoverData.cxtOver ){
+ r.hoverData.cxtOver.trigger( new $$.Event(e, {
+ type: 'cxtdragout',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) );
+
+ // console.log('cxtdragout ' + r.hoverData.cxtOver.id());
+ }
+
+ r.hoverData.cxtOver = near;
+
+ if( near ){
+ near.trigger( new $$.Event(e, {
+ type: 'cxtdragover',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) );
+
+ // console.log('cxtdragover ' + near.id());
+ }
+
+ }
+
+ // Check if we are drag panning the entire graph
+ } else if (r.hoverData.dragging) {
+ preventDefault = true;
+
+ if( cy.panningEnabled() && cy.userPanningEnabled() ){
+ var deltaP = {x: disp[0] * cy.zoom(), y: disp[1] * cy.zoom()};
+
+ cy.panBy( deltaP );
+ }
+
+ // Needs reproject due to pan changing viewport
+ pos = r.projectIntoViewport(e.clientX, e.clientY);
+
+ // Checks primary button down & out of time & mouse not moved much
+ } else if (select[4] == 1 && (down == null || down.isEdge())
+ && ( !cy.boxSelectionEnabled() || +new Date() - r.hoverData.downTime >= CanvasRenderer.panOrBoxSelectDelay )
+ && (Math.abs(select[3] - select[1]) + Math.abs(select[2] - select[0]) < 4)
+ && cy.panningEnabled() && cy.userPanningEnabled() ) {
+
+ r.hoverData.dragging = true;
+ select[4] = 0;
+
+ } else {
+ // deactivate bg on box selection
+ if (cy.boxSelectionEnabled() && Math.pow(select[2] - select[0], 2) + Math.pow(select[3] - select[1], 2) > 7 && select[4]){
+ clearTimeout( r.bgActiveTimeout );
+ r.data.bgActivePosistion = undefined;
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+ r.redraw();
+ }
+
+ if( down && down.isEdge() && down.active() ){ down.unactivate(); }
+
+ if (near != last) {
+
+ if (last) {
+ last.trigger( new $$.Event(e, {
+ type: 'mouseout',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) );
+
+ last.trigger( new $$.Event(e, {
+ type: 'tapdragout',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) );
+ }
+
+ if (near) {
+ near.trigger( new $$.Event(e, {
+ type: 'mouseover',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) );
+
+ near.trigger( new $$.Event(e, {
+ type: 'tapdragover',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) );
+ }
+
+ r.hoverData.last = near;
+ }
+
+ if ( down && down.isNode() && r.nodeIsDraggable(down) ) {
+ if( !r.dragData.didDrag ) {
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ }
+
+ r.dragData.didDrag = true; // indicate that we actually did drag the node
+
+ var toTrigger = [];
+
+ for( var i = 0; i < draggedElements.length; i++ ){
+ var dEle = draggedElements[i];
+
+ // now, add the elements to the drag layer if not done already
+ if( !r.hoverData.draggingEles ){
+ addNodeToDrag( dEle, { inDragLayer: true } );
+ }
+
+ // Locked nodes not draggable, as well as non-visible nodes
+ if( dEle.isNode() && r.nodeIsDraggable(dEle) && dEle.grabbed() ){
+ var dPos = dEle._private.position;
+
+ toTrigger.push( dEle );
+
+ if( $$.is.number(disp[0]) && $$.is.number(disp[1]) ){
+ dPos.x += disp[0];
+ dPos.y += disp[1];
+ }
+
+ }
+ }
+
+ r.hoverData.draggingEles = true;
+
+ var tcol = (new $$.Collection(cy, toTrigger));
+
+ tcol.updateCompoundBounds();
+ tcol.trigger('position drag');
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+ r.redraw();
+ }
+
+ // prevent the dragging from triggering text selection on the page
+ preventDefault = true;
+ }
+
+ select[2] = pos[0]; select[3] = pos[1];
+
+
+ if( preventDefault ){
+ if(e.stopPropagation) e.stopPropagation();
+ if(e.preventDefault) e.preventDefault();
+ return false;
+ }
+ }, 1000/30), false);
+
+ r.registerBinding(window, 'mouseup', function(e) {
+ // console.log('--\nmouseup', e)
+
+ var capture = r.hoverData.capture;
+ if (!capture) { return; }
+ r.hoverData.capture = false;
+
+ var cy = r.data.cy; var pos = r.projectIntoViewport(e.clientX, e.clientY); var select = r.data.select;
+ var near = r.findNearestElement(pos[0], pos[1], true);
+ var draggedElements = r.dragData.possibleDragElements; var down = r.hoverData.down;
+ var shiftDown = e.shiftKey;
+
+ if( r.data.bgActivePosistion ){
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+ r.redraw();
+ }
+
+ r.data.bgActivePosistion = undefined; // not active bg now
+ clearTimeout( r.bgActiveTimeout );
+
+ r.hoverData.cxtStarted = false;
+ r.hoverData.draggingEles = false;
+
+ if( down ){
+ down.unactivate();
+ }
+
+ if( r.hoverData.which === 3 ){
+ var cxtEvt = new $$.Event(e, {
+ type: 'cxttapend',
+ cyPosition: { x: pos[0], y: pos[1] }
+ });
+
+ if( down ){
+ down.trigger( cxtEvt );
+ } else {
+ cy.trigger( cxtEvt );
+ }
+
+ if( !r.hoverData.cxtDragged ){
+ var cxtTap = new $$.Event(e, {
+ type: 'cxttap',
+ cyPosition: { x: pos[0], y: pos[1] }
+ });
+
+ if( down ){
+ down.trigger( cxtTap );
+ } else {
+ cy.trigger( cxtTap );
+ }
+ }
+
+ r.hoverData.cxtDragged = false;
+ r.hoverData.which = null;
+
+ // if not right mouse
+ } else {
+
+ // Deselect all elements if nothing is currently under the mouse cursor and we aren't dragging something
+ if ( (down == null) // not mousedown on node
+ && !r.dragData.didDrag // didn't move the node around
+ && !(Math.pow(select[2] - select[0], 2) + Math.pow(select[3] - select[1], 2) > 7 && select[4]) // not box selection
+ && !r.hoverData.dragging // not panning
+ ) {
+
+ cy.$(function(){
+ return this.selected();
+ }).unselect();
+
+ if (draggedElements.length > 0) {
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ }
+
+ r.dragData.possibleDragElements = draggedElements = [];
+ }
+
+
+ // Mouseup event
+ {
+ // console.log('trigger mouseup et al');
+
+ if (near != null) {
+ near
+ .trigger(new $$.Event(e, {
+ type: 'mouseup',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapend',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmouseup',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ ;
+ } else if (near == null) {
+ cy
+ .trigger(new $$.Event(e, {
+ type: 'mouseup',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapend',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmouseup',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }))
+ ;
+ }
+ }
+
+ // Click event
+ {
+ // console.log('trigger click et al');
+
+ if (Math.pow(select[2] - select[0], 2) + Math.pow(select[3] - select[1], 2) === 0) {
+ if (near != null) {
+ near
+ .trigger( new $$.Event(e, {
+ type: 'click',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) )
+ .trigger( new $$.Event(e, {
+ type: 'tap',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) )
+ .trigger( new $$.Event(e, {
+ type: 'vclick',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) )
+ ;
+ } else if (near == null) {
+ cy
+ .trigger( new $$.Event(e, {
+ type: 'click',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) )
+ .trigger( new $$.Event(e, {
+ type: 'tap',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) )
+ .trigger( new $$.Event(e, {
+ type: 'vclick',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }) )
+ ;
+ }
+ }
+ }
+
+ // Single selection
+ if (near == down && !r.dragData.didDrag) {
+ if (near != null && near._private.selectable) {
+
+ // console.log('single selection')
+
+ if( cy.selectionType() === 'additive' || shiftDown ){
+ if( near.selected() ){
+ near.unselect();
+ } else {
+ near.select();
+ }
+ } else {
+ if( !shiftDown ){
+ cy.$(':selected').not( near ).unselect();
+ near.select();
+ }
+ }
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+
+ }
+
+ }
+
+ if ( cy.boxSelectionEnabled() && Math.pow(select[2] - select[0], 2) + Math.pow(select[3] - select[1], 2) > 7 && select[4] ) {
+ var newlySelected = [];
+ var box = r.getAllInBox( select[0], select[1], select[2], select[3] );
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ if( box.length > 0 ) {
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ }
+
+ for( var i = 0; i < box.length; i++ ){
+ if( box[i]._private.selectable ){
+ newlySelected.push( box[i] );
+ }
+ }
+
+ var newlySelCol = new $$.Collection( cy, newlySelected );
+
+ if( cy.selectionType() === 'additive' ){
+ newlySelCol.select();
+ } else {
+ if( !shiftDown ){
+ cy.$(':selected').not( newlySelCol ).unselect();
+ }
+
+ newlySelCol.select();
+ }
+
+ // always need redraw in case eles unselectable
+ r.redraw();
+
+ }
+
+ // Cancel drag pan
+ if( r.hoverData.dragging ){
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+ r.redraw();
+ }
+
+ r.hoverData.dragging = false;
+
+ if (!select[4]) {
+ // console.log('free at end', draggedElements)
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+
+ for (var i=0; i < draggedElements.length; i++) {
+
+ if(draggedElements[i]._private.group === 'nodes') {
+ draggedElements[i]._private.rscratch.inDragLayer = false;
+ draggedElements[i]._private.grabbed = false;
+
+ var sEdges = draggedElements[i]._private.edges;
+ for( var j = 0; j < sEdges.length; j++ ){ sEdges[j]._private.rscratch.inDragLayer = false; }
+
+ // for compound nodes, also remove related nodes and edges from the drag layer
+ updateAncestorsInDragLayer(draggedElements[i], { inDragLayer: false });
+
+ } else if( draggedElements[i]._private.group === 'edges' ){
+ draggedElements[i]._private.rscratch.inDragLayer = false;
+ }
+
+ }
+
+ if( down ){ down.trigger('free'); }
+
+ // draggedElements = r.dragData.possibleDragElements = [];
+
+ }
+
+ } // else not right mouse
+
+ select[4] = 0; r.hoverData.down = null;
+
+ //r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+// console.log('mu', pos[0], pos[1]);
+// console.log('ss', select);
+
+ r.dragData.didDrag = false;
+
+ }, false);
+
+ var wheelHandler = function(e) {
+ if( r.scrollingPage ){ return; } // while scrolling, ignore wheel-to-zoom
+
+ var cy = r.data.cy;
+ var pos = r.projectIntoViewport(e.clientX, e.clientY);
+ var rpos = [pos[0] * cy.zoom() + cy.pan().x,
+ pos[1] * cy.zoom() + cy.pan().y];
+
+ if( r.hoverData.draggingEles || r.hoverData.dragging || r.hoverData.cxtStarted || inBoxSelection() ){ // if pan dragging or cxt dragging, wheel movements make no zoom
+ e.preventDefault();
+ return;
+ }
+
+ if( cy.panningEnabled() && cy.userPanningEnabled() && cy.zoomingEnabled() && cy.userZoomingEnabled() ){
+ e.preventDefault();
+
+ r.data.wheelZooming = true;
+ clearTimeout( r.data.wheelTimeout );
+ r.data.wheelTimeout = setTimeout(function(){
+ r.data.wheelZooming = false;
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ r.redraw();
+ }, 150);
+
+ var diff = e.wheelDeltaY / 1000 || e.wheelDelta / 1000 || e.detail / -32 || -e.deltaY / 500;
+ diff = diff * r.wheelSensitivity;
+
+ cy.zoom({
+ level: cy.zoom() * Math.pow(10, diff),
+ renderedPosition: { x: rpos[0], y: rpos[1] }
+ });
+ }
+
+ };
+
+ // Functions to help with whether mouse wheel should trigger zooming
+ // --
+ r.registerBinding(r.data.container, 'wheel', wheelHandler, true);
+
+ r.registerBinding(r.data.container, 'mousewheel', wheelHandler, true);
+
+ r.registerBinding(r.data.container, 'DOMMouseScroll', wheelHandler, true);
+
+ // TODO is this even needed?
+ r.registerBinding(r.data.container, 'MozMousePixelScroll', function(e){
+ }, false);
+
+ r.registerBinding(window, 'scroll', function(e){
+ r.scrollingPage = true;
+
+ clearTimeout( r.scrollingPageTimeout );
+ r.scrollingPageTimeout = setTimeout(function(){
+ r.scrollingPage = false;
+ }, 250);
+ }, true);
+
+ // Functions to help with handling mouseout/mouseover on the Cytoscape container
+ // Handle mouseout on Cytoscape container
+ r.registerBinding(r.data.container, 'mouseout', function(e) {
+ var pos = r.projectIntoViewport(e.clientX, e.clientY);
+
+ r.data.cy.trigger(new $$.Event(e, {
+ type: 'mouseout',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }));
+ }, false);
+
+ r.registerBinding(r.data.container, 'mouseover', function(e) {
+ var pos = r.projectIntoViewport(e.clientX, e.clientY);
+
+ r.data.cy.trigger(new $$.Event(e, {
+ type: 'mouseover',
+ cyPosition: { x: pos[0], y: pos[1] }
+ }));
+ }, false);
+
+ var f1x1, f1y1, f2x1, f2y1; // starting points for pinch-to-zoom
+ var distance1; // initial distance between finger 1 and finger 2 for pinch-to-zoom
+ var center1, modelCenter1; // center point on start pinch to zoom
+ var offsetLeft, offsetTop;
+ var containerWidth, containerHeight;
+ var twoFingersStartInside;
+
+ var distance = function(x1, y1, x2, y2){
+ return Math.sqrt( (x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) );
+ };
+
+ r.registerBinding(r.data.container, 'touchstart', function(e) {
+
+ clearTimeout( this.threeFingerSelectTimeout );
+
+ if( e.target !== r.data.link ){
+ e.preventDefault();
+ }
+
+ r.touchData.capture = true;
+ r.data.bgActivePosistion = undefined;
+
+ var cy = r.data.cy;
+ var nodes = r.getCachedNodes(); var edges = r.getCachedEdges();
+ var now = r.touchData.now; var earlier = r.touchData.earlier;
+
+ if (e.touches[0]) { var pos = r.projectIntoViewport(e.touches[0].clientX, e.touches[0].clientY); now[0] = pos[0]; now[1] = pos[1]; }
+ if (e.touches[1]) { var pos = r.projectIntoViewport(e.touches[1].clientX, e.touches[1].clientY); now[2] = pos[0]; now[3] = pos[1]; }
+ if (e.touches[2]) { var pos = r.projectIntoViewport(e.touches[2].clientX, e.touches[2].clientY); now[4] = pos[0]; now[5] = pos[1]; }
+
+ // record starting points for pinch-to-zoom
+ if( e.touches[1] ){
+
+ // anything in the set of dragged eles should be released
+ var release = function( eles ){
+ for( var i = 0; i < eles.length; i++ ){
+ eles[i]._private.grabbed = false;
+ eles[i]._private.rscratch.inDragLayer = false;
+ if( eles[i].active() ){ eles[i].unactivate(); }
+ }
+ };
+ release(nodes);
+ release(edges);
+
+ var offsets = r.findContainerClientCoords();
+ offsetLeft = offsets[0];
+ offsetTop = offsets[1];
+ containerWidth = offsets[2];
+ containerHeight = offsets[3];
+
+ f1x1 = e.touches[0].clientX - offsetLeft;
+ f1y1 = e.touches[0].clientY - offsetTop;
+
+ f2x1 = e.touches[1].clientX - offsetLeft;
+ f2y1 = e.touches[1].clientY - offsetTop;
+
+ twoFingersStartInside =
+ 0 <= f1x1 && f1x1 <= containerWidth
+ && 0 <= f2x1 && f2x1 <= containerWidth
+ && 0 <= f1y1 && f1y1 <= containerHeight
+ && 0 <= f2y1 && f2y1 <= containerHeight
+ ;
+
+ var pan = cy.pan();
+ var zoom = cy.zoom();
+
+ distance1 = distance( f1x1, f1y1, f2x1, f2y1 );
+ center1 = [ (f1x1 + f2x1)/2, (f1y1 + f2y1)/2 ];
+ modelCenter1 = [
+ (center1[0] - pan.x) / zoom,
+ (center1[1] - pan.y) / zoom
+ ];
+
+ // consider context tap
+ if( distance1 < 200 && !e.touches[2] ){
+
+ var near1 = r.findNearestElement(now[0], now[1], true);
+ var near2 = r.findNearestElement(now[2], now[3], true);
+
+ //console.log(distance1)
+
+ if( near1 && near1.isNode() ){
+ near1.activate().trigger( new $$.Event(e, {
+ type: 'cxttapstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ r.touchData.start = near1;
+
+ } else if( near2 && near2.isNode() ){
+ near2.activate().trigger( new $$.Event(e, {
+ type: 'cxttapstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ r.touchData.start = near2;
+
+ } else {
+ cy.trigger( new $$.Event(e, {
+ type: 'cxttapstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ r.touchData.start = null;
+ }
+
+ if( r.touchData.start ){ r.touchData.start._private.grabbed = false; }
+ r.touchData.cxt = true;
+ r.touchData.cxtDragged = false;
+ r.data.bgActivePosistion = undefined;
+
+ //console.log('cxttapstart')
+
+ r.redraw();
+ return;
+
+ }
+
+ // console.log(center1);
+ // console.log('touchstart ptz');
+ // console.log(offsetLeft, offsetTop);
+ // console.log(f1x1, f1y1);
+ // console.log(f2x1, f2y1);
+ // console.log(distance1);
+ // console.log(center1);
+ }
+
+ // console.log('another tapstart')
+
+
+ if (e.touches[2]) {
+
+ } else if (e.touches[1]) {
+
+ } else if (e.touches[0]) {
+ var near = r.findNearestElement(now[0], now[1], true);
+
+ if (near != null) {
+ near.activate();
+
+ r.touchData.start = near;
+
+ if( near.isNode() && r.nodeIsDraggable(near) ){
+
+ var draggedEles = r.dragData.touchDragEles = [];
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ if( near.selected() ){
+ // reset drag elements, since near will be added again
+
+ var selectedNodes = cy.$(function(){
+ return this.isNode() && this.selected();
+ });
+
+ for( var k = 0; k < selectedNodes.length; k++ ){
+ var selectedNode = selectedNodes[k];
+
+ if( r.nodeIsDraggable(selectedNode) ){
+ addNodeToDrag( selectedNode, { addToList: draggedEles } );
+ }
+ }
+ } else {
+ addNodeToDrag( near, { addToList: draggedEles } );
+ }
+
+ near.trigger('grab');
+ }
+
+ near
+ .trigger(new $$.Event(e, {
+ type: 'touchstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmousdown',
+ cyPosition: { x: now[0], y: now[1] }
+ }))
+ ;
+ } if (near == null) {
+ cy
+ .trigger(new $$.Event(e, {
+ type: 'touchstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'tapstart',
+ cyPosition: { x: now[0], y: now[1] }
+ }))
+ .trigger(new $$.Event(e, {
+ type: 'vmousedown',
+ cyPosition: { x: now[0], y: now[1] }
+ }))
+ ;
+
+ r.data.bgActivePosistion = {
+ x: pos[0],
+ y: pos[1]
+ };
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+ r.redraw();
+ }
+
+
+ // Tap, taphold
+ // -----
+
+ for (var i=0; i 250) {
+ if (r.touchData.start) {
+ r.touchData.start.trigger( new $$.Event(e, {
+ type: 'taphold',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ } else {
+ r.data.cy.trigger( new $$.Event(e, {
+ type: 'taphold',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ cy.$(':selected').unselect();
+ }
+
+// console.log('taphold');
+ }
+ }, 1000);
+ }
+
+ //r.redraw();
+
+ }, false);
+
+// console.log = function(m){ $('#console').append(''+m+'
'); };
+
+ r.registerBinding(window, 'touchmove', $$.util.throttle(function(e) {
+
+ var select = r.data.select;
+ var capture = r.touchData.capture; //if (!capture) { return; };
+ if( capture ){ e.preventDefault(); }
+
+ var cy = r.data.cy;
+ var now = r.touchData.now; var earlier = r.touchData.earlier;
+
+ if (e.touches[0]) { var pos = r.projectIntoViewport(e.touches[0].clientX, e.touches[0].clientY); now[0] = pos[0]; now[1] = pos[1]; }
+ if (e.touches[1]) { var pos = r.projectIntoViewport(e.touches[1].clientX, e.touches[1].clientY); now[2] = pos[0]; now[3] = pos[1]; }
+ if (e.touches[2]) { var pos = r.projectIntoViewport(e.touches[2].clientX, e.touches[2].clientY); now[4] = pos[0]; now[5] = pos[1]; }
+ var disp = []; for (var j=0;j= 1.5 || distance2 >= 150 ){
+ r.touchData.cxt = false;
+ if( r.touchData.start ){ r.touchData.start.unactivate(); r.touchData.start = null; }
+ r.data.bgActivePosistion = undefined;
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ var cxtEvt = new $$.Event(e, {
+ type: 'cxttapend',
+ cyPosition: { x: now[0], y: now[1] }
+ });
+ if( r.touchData.start ){
+ r.touchData.start.trigger( cxtEvt );
+ } else {
+ cy.trigger( cxtEvt );
+ }
+ }
+
+ }
+
+ if( capture && r.touchData.cxt ){
+ var cxtEvt = new $$.Event(e, {
+ type: 'cxtdrag',
+ cyPosition: { x: now[0], y: now[1] }
+ });
+ r.data.bgActivePosistion = undefined;
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ if( r.touchData.start ){
+ r.touchData.start.trigger( cxtEvt );
+ } else {
+ cy.trigger( cxtEvt );
+ }
+
+ if( r.touchData.start ){ r.touchData.start._private.grabbed = false; }
+ r.touchData.cxtDragged = true;
+
+ //console.log('cxtdrag')
+
+ var near = r.findNearestElement(now[0], now[1], true);
+
+ if( !r.touchData.cxtOver || near !== r.touchData.cxtOver ){
+
+ if( r.touchData.cxtOver ){
+ r.touchData.cxtOver.trigger( new $$.Event(e, {
+ type: 'cxtdragout',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ // console.log('cxtdragout');
+ }
+
+ r.touchData.cxtOver = near;
+
+ if( near ){
+ near.trigger( new $$.Event(e, {
+ type: 'cxtdragover',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ // console.log('cxtdragover');
+ }
+
+ }
+
+ } else if( capture && e.touches[2] && cy.boxSelectionEnabled() ){
+ r.data.bgActivePosistion = undefined;
+ clearTimeout( this.threeFingerSelectTimeout );
+ this.lastThreeTouch = +new Date();
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ if( !select || select.length === 0 || select[0] === undefined ){
+ select[0] = (now[0] + now[2] + now[4])/3;
+ select[1] = (now[1] + now[3] + now[5])/3;
+ select[2] = (now[0] + now[2] + now[4])/3 + 1;
+ select[3] = (now[1] + now[3] + now[5])/3 + 1;
+ } else {
+ select[2] = (now[0] + now[2] + now[4])/3;
+ select[3] = (now[1] + now[3] + now[5])/3;
+ }
+
+ select[4] = 1;
+
+ r.redraw();
+
+ } else if ( capture && e.touches[1] && cy.zoomingEnabled() && cy.panningEnabled() && cy.userZoomingEnabled() && cy.userPanningEnabled() ) { // two fingers => pinch to zoom
+ r.data.bgActivePosistion = undefined;
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ var draggedEles = r.dragData.touchDragEles;
+ if( draggedEles ){
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ for( var i = 0; i < draggedEles.length; i++ ){
+ draggedEles[i]._private.grabbed = false;
+ draggedEles[i]._private.rscratch.inDragLayer = false;
+ }
+ }
+
+ // console.log('touchmove ptz');
+
+ // (x2, y2) for fingers 1 and 2
+ var f1x2 = e.touches[0].clientX - offsetLeft, f1y2 = e.touches[0].clientY - offsetTop;
+ var f2x2 = e.touches[1].clientX - offsetLeft, f2y2 = e.touches[1].clientY - offsetTop;
+
+ // console.log( f1x2, f1y2 )
+ // console.log( f2x2, f2y2 )
+
+ var distance2 = distance( f1x2, f1y2, f2x2, f2y2 );
+ var factor = distance2 / distance1;
+
+ // console.log(distance2)
+ // console.log(factor)
+
+ if( factor != 1 && twoFingersStartInside){
+
+ // console.log(factor)
+ // console.log(distance2 + ' / ' + distance1);
+ // console.log('--');
+
+ // delta finger1
+ var df1x = f1x2 - f1x1;
+ var df1y = f1y2 - f1y1;
+
+ // delta finger 2
+ var df2x = f2x2 - f2x1;
+ var df2y = f2y2 - f2y1;
+
+ // translation is the normalised vector of the two fingers movement
+ // i.e. so pinching cancels out and moving together pans
+ var tx = (df1x + df2x)/2;
+ var ty = (df1y + df2y)/2;
+
+ // adjust factor by the speed multiplier
+ // var speed = 1.5;
+ // if( factor > 1 ){
+ // factor = (factor - 1) * speed + 1;
+ // } else {
+ // factor = 1 - (1 - factor) * speed;
+ // }
+
+ // now calculate the zoom
+ var zoom1 = cy.zoom();
+ var zoom2 = zoom1 * factor;
+ var pan1 = cy.pan();
+
+ // the model center point converted to the current rendered pos
+ var ctrx = modelCenter1[0] * zoom1 + pan1.x;
+ var ctry = modelCenter1[1] * zoom1 + pan1.y;
+
+ var pan2 = {
+ x: -zoom2/zoom1 * (ctrx - pan1.x - tx) + ctrx,
+ y: -zoom2/zoom1 * (ctry - pan1.y - ty) + ctry
+ };
+
+ // console.log(pan2);
+ // console.log(zoom2);
+
+ // remove dragged eles
+ if( r.touchData.start ){
+ var draggedEles = r.dragData.touchDragEles;
+
+ if( draggedEles ){ for( var i = 0; i < draggedEles.length; i++ ){
+ draggedEles[i]._private.grabbed = false;
+ draggedEles[i]._private.rscratch.inDragLayer = false;
+ } }
+
+ r.touchData.start._private.active = false;
+ r.touchData.start._private.grabbed = false;
+ r.touchData.start._private.rscratch.inDragLayer = false;
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ r.touchData.start
+ .trigger('free')
+ .trigger('unactivate')
+ ;
+ }
+
+ cy.viewport({
+ zoom: zoom2,
+ pan: pan2,
+ cancelOnFailedZoom: true
+ });
+
+ distance1 = distance2;
+ f1x1 = f1x2;
+ f1y1 = f1y2;
+ f2x1 = f2x2;
+ f2y1 = f2y2;
+
+ r.pinching = true;
+ }
+
+ // Re-project
+ if (e.touches[0]) { var pos = r.projectIntoViewport(e.touches[0].clientX, e.touches[0].clientY); now[0] = pos[0]; now[1] = pos[1]; }
+ if (e.touches[1]) { var pos = r.projectIntoViewport(e.touches[1].clientX, e.touches[1].clientY); now[2] = pos[0]; now[3] = pos[1]; }
+ if (e.touches[2]) { var pos = r.projectIntoViewport(e.touches[2].clientX, e.touches[2].clientY); now[4] = pos[0]; now[5] = pos[1]; }
+
+ } else if (e.touches[0]) {
+ var start = r.touchData.start;
+ var last = r.touchData.last;
+ var near = near || r.findNearestElement(now[0], now[1], true);
+
+ if ( start != null && start._private.group == 'nodes' && r.nodeIsDraggable(start)) {
+ var draggedEles = r.dragData.touchDragEles;
+
+ for( var k = 0; k < draggedEles.length; k++ ){
+ var draggedEle = draggedEles[k];
+
+ if( r.nodeIsDraggable(draggedEle) && draggedEle.isNode() && draggedEle.grabbed() ){
+ r.dragData.didDrag = true;
+ var dPos = draggedEle._private.position;
+
+ dPos.x += disp[0];
+ dPos.y += disp[1];
+
+ if( !r.hoverData.draggingEles ){
+ addNodeToDrag( draggedEle, { inDragLayer: true } );
+ }
+ }
+ }
+
+ var tcol = new $$.Collection(cy, draggedEle);
+
+ tcol.updateCompoundBounds();
+ tcol.trigger('position drag');
+
+ r.hoverData.draggingEles = true;
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.DRAG] = true;
+
+ if(
+ r.touchData.startPosition[0] == earlier[0]
+ && r.touchData.startPosition[1] == earlier[1]
+ ){
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ }
+
+ r.redraw();
+ }
+
+ // Touchmove event
+ {
+
+ if (start != null) {
+ start.trigger( new $$.Event(e, {
+ type: 'touchmove',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ start.trigger( new $$.Event(e, {
+ type: 'tapdrag',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ start.trigger( new $$.Event(e, {
+ type: 'vmousemove',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ }
+
+ if (start == null) {
+
+ if (near != null) {
+ near.trigger( new $$.Event(e, {
+ type: 'touchmove',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ near.trigger( new $$.Event(e, {
+ type: 'tapdrag',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ near.trigger( new $$.Event(e, {
+ type: 'vmousemove',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ }
+
+ if (near == null) {
+ cy.trigger( new $$.Event(e, {
+ type: 'touchmove',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ cy.trigger( new $$.Event(e, {
+ type: 'tapdrag',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+
+ cy.trigger( new $$.Event(e, {
+ type: 'vmousemove',
+ cyPosition: { x: now[0], y: now[1] }
+ }) );
+ }
+ }
+
+ if (near != last) {
+ if (last) { last.trigger(new $$.Event(e, { type: 'tapdragout', cyPosition: { x: now[0], y: now[1] } })); }
+ if (near) { near.trigger(new $$.Event(e, { type: 'tapdragover', cyPosition: { x: now[0], y: now[1] } })); }
+ }
+
+ r.touchData.last = near;
+ }
+
+ // Check to cancel taphold
+ for (var i=0;i 4) {
+
+ r.touchData.singleTouchMoved = true;
+ }
+ }
+
+ if ( capture && (start == null || start.isEdge()) && cy.panningEnabled() && cy.userPanningEnabled() ) {
+ if( start ){
+ start.unactivate();
+
+ if( !r.data.bgActivePosistion ){
+ r.data.bgActivePosistion = {
+ x: now[0],
+ y: now[1]
+ };
+ }
+
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ r.touchData.start = null;
+ }
+
+ cy.panBy({x: disp[0] * cy.zoom(), y: disp[1] * cy.zoom()});
+ r.swipePanning = true;
+
+ // Re-project
+ var pos = r.projectIntoViewport(e.touches[0].clientX, e.touches[0].clientY);
+ now[0] = pos[0]; now[1] = pos[1];
+ }
+ }
+
+ for (var j=0; j 0 ) {
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ } else {
+ r.redraw();
+ }
+
+ //}, 100);
+ }
+
+ if( e.touches.length < 2 ){
+ r.pinching = false;
+ r.data.canvasNeedsRedraw[CanvasRenderer.NODE] = true;
+ r.redraw();
+ }
+
+ var updateStartStyle = false;
+
+ if( start != null ){
+ start._private.active = false;
+ updateStartStyle = true;
+ start.unactivate();
+ }
+
+ if (e.touches[2]) {
+ r.data.bgActivePosistion = undefined;
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+ } else if (e.touches[1]) {
+
+ } else if (e.touches[0]) {
+
+ // Last touch released
+ } else if (!e.touches[0]) {
+
+ r.data.bgActivePosistion = undefined;
+ r.data.canvasNeedsRedraw[CanvasRenderer.SELECT_BOX] = true;
+
+ if (start != null ) {
+
+ if( start._private.grabbed ){
+ start._private.grabbed = false;
+ start.trigger('free');
+ start._private.rscratch.inDragLayer = false;
+ }
+
+ var sEdges = start._private.edges;
+ for (var j=0;j 0 && options.stableEnergy(energy) ){
+ layout.stop();
+ return;
+ }
+
+ if( !options.infinite && doneTime != Infinity ){
+ clearTimeout(doneTimeout);
+ doneTimeout = setTimeout(doneHandler, doneTime);
+ }
+
+ var movedNodes = cy.collection();
+
+ sys.eachNode(function(n, point){
+ var data = n.data;
+ var node = data.element;
+
+ if( node == null ){
+ return;
+ }
+
+ if( !node.locked() && !node.grabbed() ){
+ node.silentPosition({
+ x: bb.x1 + point.x,
+ y: bb.y1 + point.y
+ });
+
+ movedNodes.merge( node );
+ }
+ });
+
+
+ if( options.animate && movedNodes.length > 0 ){
+ simUpdatingPos = true;
+
+ movedNodes.rtrigger('position');
+
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+
+ lastDraw = +new Date();
+ simUpdatingPos = false;
+ }
+
+
+ if( !ready ){
+ ready = true;
+ layout.one('layoutready', options.ready);
+ layout.trigger({ type: 'layoutready', layout: layout });
+ }
+ }
+
+ };
+ sys.renderer = sysRenderer;
+ sys.screenSize( bb.w, bb.h );
+ sys.screenPadding( options.padding, options.padding, options.padding, options.padding );
+ sys.screenStep( options.stepSize );
+
+ function calculateValueForElement(element, value){
+ if( value == null ){
+ return undefined;
+ } else if( typeof value == typeof function(){} ){
+ return value.apply(element, [element._private.data, {
+ nodes: nodes.length,
+ edges: edges.length,
+ element: element
+ }]);
+ } else {
+ return value;
+ }
+ }
+
+ var grabHandler;
+ nodes.on('grab free position', grabHandler = function(e){
+ if( simUpdatingPos ){ return; }
+
+ var pos = this.position();
+ var apos = sys.fromScreen( pos );
+ if( !apos ){ return; }
+
+ var p = arbor.Point(apos.x, apos.y);
+ var padding = options.padding;
+
+ if(
+ bb.x1 + padding <= pos.x && pos.x <= bb.x2 - padding &&
+ bb.y1 + padding <= pos.y && pos.y <= bb.y2 - padding
+ ){
+ this.scratch().arbor.p = p;
+ }
+
+ switch( e.type ){
+ case 'grab':
+ this.scratch().arbor.fixed = true;
+ break;
+ case 'free':
+ this.scratch().arbor.fixed = false;
+ //this.scratch().arbor.tempMass = 1000;
+ break;
+ }
+ });
+
+ var lockHandler;
+ nodes.on('lock unlock', lockHandler = function(e){
+ node.scratch().arbor.fixed = node.locked();
+ });
+
+ var removeHandler;
+ eles.on('remove', removeHandler = function(e){ return; // TODO enable when layout add/remove api added
+ // var ele = this;
+ // var arborEle = ele.scratch().arbor;
+
+ // if( !arborEle ){ return; }
+
+ // if( ele.isNode() ){
+ // sys.pruneNode( arborEle );
+ // } else {
+ // sys.pruneEdge( arborEle );
+ // }
+ });
+
+ var addHandler;
+ cy.on('add', '*', addHandler = function(){ return; // TODO enable when layout add/remove api added
+ // var ele = this;
+
+ // if( ele.isNode() ){
+ // addNode( ele );
+ // } else {
+ // addEdge( ele );
+ // }
+ });
+
+ var resizeHandler;
+ cy.on('resize', resizeHandler = function(){
+ if( options.boundingBox == null && layout._private.system != null ){
+ var w = cy.width();
+ var h = cy.height();
+
+ sys.screenSize( w, h );
+ }
+ });
+
+ function addNode( node ){
+ if( node.isFullAutoParent() ){ return; } // they don't exist in the sim
+
+ var id = node._private.data.id;
+ var mass = calculateValueForElement(node, options.nodeMass);
+ var locked = node._private.locked;
+ var nPos = node.position();
+
+ var pos = sys.fromScreen({
+ x: nPos.x,
+ y: nPos.y
+ });
+
+ node.scratch().arbor = sys.addNode(id, {
+ element: node,
+ mass: mass,
+ fixed: locked,
+ x: locked ? pos.x : undefined,
+ y: locked ? pos.y : undefined
+ });
+ }
+
+ function addEdge( edge ){
+ var src = edge.source().id();
+ var tgt = edge.target().id();
+ var length = calculateValueForElement(edge, options.edgeLength);
+
+ edge.scratch().arbor = sys.addEdge(src, tgt, {
+ length: length
+ });
+ }
+
+ nodes.each(function(i, node){
+ addNode( node );
+ });
+
+ edges.each(function(i, edge){
+ addEdge( edge );
+ });
+
+ var grabbableNodes = nodes.filter(":grabbable");
+ // disable grabbing if so set
+ if( options.ungrabifyWhileSimulating ){
+ grabbableNodes.ungrabify();
+ }
+
+ var doneHandler = layout._private.doneHandler = function(){
+ layout._private.doneHandler = null;
+
+ if( !options.animate ){
+ if( options.fit ){
+ cy.reset();
+ }
+
+ nodes.rtrigger('position');
+ }
+
+ // unbind handlers
+ nodes.off('grab free position', grabHandler);
+ nodes.off('lock unlock', lockHandler);
+ eles.off('remove', removeHandler);
+ cy.off('add', '*', addHandler);
+ cy.off('resize', resizeHandler);
+
+ // enable back grabbing if so set
+ if( options.ungrabifyWhileSimulating ){
+ grabbableNodes.grabify();
+ }
+
+ layout.one('layoutstop', options.stop);
+ layout.trigger({ type: 'layoutstop', layout: layout });
+ };
+
+ sys.start();
+ if( !options.infinite && options.maxSimulationTime != null && options.maxSimulationTime > 0 && options.maxSimulationTime !== Infinity ){
+ setTimeout(function(){
+ layout.stop();
+ }, options.maxSimulationTime);
+ }
+
+ }); // require
+
+ return this; // chaining
+ };
+
+
+ ArborLayout.prototype.stop = function(){
+ if( this._private.system != null ){
+ this._private.system.stop();
+ }
+
+ if( this._private.doneHandler ){
+ this._private.doneHandler();
+ }
+
+ return this; // chaining
+ };
+
+ $$('layout', 'arbor', ArborLayout);
+
+
+})(cytoscape);
+
+;(function($$){ 'use strict';
+
+ var defaults = {
+ fit: true, // whether to fit the viewport to the graph
+ directed: false, // whether the tree is directed downwards (or edges can point in any direction if false)
+ padding: 30, // padding on fit
+ circle: false, // put depths in concentric circles if true, put depths top down if false
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ avoidOverlap: true, // prevents node overlap, may overflow boundingBox if not enough space
+ roots: undefined, // the roots of the trees
+ maximalAdjustments: 0, // how many times to try to position the nodes in a maximal way (i.e. no backtracking)
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ ready: undefined, // callback on layoutready
+ stop: undefined // callback on layoutstop
+ };
+
+ function BreadthFirstLayout( options ){
+ this.options = $$.util.extend({}, defaults, options);
+ }
+
+ BreadthFirstLayout.prototype.run = function(){
+ var params = this.options;
+ var options = params;
+
+ var cy = params.cy;
+ var eles = options.eles;
+ var nodes = eles.nodes().not(':parent');
+ var graph = eles;
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ var roots;
+ if( $$.is.elementOrCollection(options.roots) ){
+ roots = options.roots;
+ } else if( $$.is.array(options.roots) ){
+ var rootsArray = [];
+
+ for( var i = 0; i < options.roots.length; i++ ){
+ var id = options.roots[i];
+ var ele = cy.getElementById( id );
+ rootsArray.push( ele );
+ }
+
+ roots = new $$.Collection( cy, rootsArray );
+ } else if( $$.is.string(options.roots) ){
+ roots = cy.$( options.roots );
+
+ } else {
+ if( options.directed ){
+ roots = nodes.roots();
+ } else {
+ var components = [];
+ var unhandledNodes = nodes;
+
+ while( unhandledNodes.length > 0 ){
+ var currComp = cy.collection();
+
+ eles.bfs({
+ roots: unhandledNodes[0],
+ visit: function(i, depth, node, edge, pNode){
+ currComp = currComp.add( node );
+ },
+ directed: false
+ });
+
+ unhandledNodes = unhandledNodes.not( currComp );
+ components.push( currComp );
+ }
+
+ roots = cy.collection();
+ for( var i = 0; i < components.length; i++ ){
+ var comp = components[i];
+ var maxDegree = comp.maxDegree( false );
+ var compRoots = comp.filter(function(){
+ return this.degree(false) === maxDegree;
+ });
+
+ roots = roots.add( compRoots );
+ }
+
+ }
+ }
+
+
+ var depths = [];
+ var foundByBfs = {};
+ var id2depth = {};
+ var prevNode = {};
+ var prevEdge = {};
+ var successors = {};
+
+ // find the depths of the nodes
+ graph.bfs({
+ roots: roots,
+ directed: options.directed,
+ visit: function(i, depth, node, edge, pNode){
+ var ele = this[0];
+ var id = ele.id();
+
+ if( !depths[depth] ){
+ depths[depth] = [];
+ }
+
+ depths[depth].push( ele );
+ foundByBfs[ id ] = true;
+ id2depth[ id ] = depth;
+ prevNode[ id ] = pNode;
+ prevEdge[ id ] = edge;
+
+ if( pNode ){
+ var prevId = pNode.id();
+ var succ = successors[ prevId ] = successors[ prevId ] || [];
+
+ succ.push( node );
+ }
+ }
+ });
+
+ // check for nodes not found by bfs
+ var orphanNodes = [];
+ for( var i = 0; i < nodes.length; i++ ){
+ var ele = nodes[i];
+
+ if( foundByBfs[ ele.id() ] ){
+ continue;
+ } else {
+ orphanNodes.push( ele );
+ }
+ }
+
+ // assign orphan nodes a depth from their neighborhood
+ var maxChecks = orphanNodes.length * 3;
+ var checks = 0;
+ while( orphanNodes.length !== 0 && checks < maxChecks ){
+ var node = orphanNodes.shift();
+ var neighbors = node.neighborhood().nodes();
+ var assignedDepth = false;
+
+ for( var i = 0; i < neighbors.length; i++ ){
+ var depth = id2depth[ neighbors[i].id() ];
+
+ if( depth !== undefined ){
+ depths[depth].push( node );
+ assignedDepth = true;
+ break;
+ }
+ }
+
+ if( !assignedDepth ){
+ orphanNodes.push( node );
+ }
+
+ checks++;
+ }
+
+ // assign orphan nodes that are still left to the depth of their subgraph
+ while( orphanNodes.length !== 0 ){
+ var node = orphanNodes.shift();
+ //var subgraph = graph.bfs( node ).path;
+ var assignedDepth = false;
+
+ // for( var i = 0; i < subgraph.length; i++ ){
+ // var depth = id2depth[ subgraph[i].id() ];
+
+ // if( depth !== undefined ){
+ // depths[depth].push( node );
+ // assignedDepth = true;
+ // break;
+ // }
+ // }
+
+ if( !assignedDepth ){ // worst case if the graph really isn't tree friendly, then just dump it in 0
+ if( depths.length === 0 ){
+ depths.push([]);
+ }
+
+ depths[0].push( node );
+ }
+ }
+
+ // assign the nodes a depth and index
+ var assignDepthsToEles = function(){
+ for( var i = 0; i < depths.length; i++ ){
+ var eles = depths[i];
+
+ for( var j = 0; j < eles.length; j++ ){
+ var ele = eles[j];
+
+ ele._private.scratch.breadthfirst = {
+ depth: i,
+ index: j
+ };
+ }
+ }
+ };
+ assignDepthsToEles();
+
+
+ var intersectsDepth = function( node ){ // returns true if has edges pointing in from a higher depth
+ var edges = node.connectedEdges(function(){
+ return this.data('target') === node.id();
+ });
+ var thisInfo = node._private.scratch.breadthfirst;
+ var highestDepthOfOther = 0;
+ var highestOther;
+ for( var i = 0; i < edges.length; i++ ){
+ var edge = edges[i];
+ var otherNode = edge.source()[0];
+ var otherInfo = otherNode._private.scratch.breadthfirst;
+
+ if( thisInfo.depth <= otherInfo.depth && highestDepthOfOther < otherInfo.depth ){
+ highestDepthOfOther = otherInfo.depth;
+ highestOther = otherNode;
+ }
+ }
+
+ return highestOther;
+ };
+
+ // make maximal if so set by adjusting depths
+ for( var adj = 0; adj < options.maximalAdjustments; adj++ ){
+
+ var nDepths = depths.length;
+ var elesToMove = [];
+ for( var i = 0; i < nDepths; i++ ){
+ var depth = depths[i];
+
+ var nDepth = depth.length;
+ for( var j = 0; j < nDepth; j++ ){
+ var ele = depth[j];
+ var info = ele._private.scratch.breadthfirst;
+ var intEle = intersectsDepth(ele);
+
+ if( intEle ){
+ info.intEle = intEle;
+ elesToMove.push( ele );
+ }
+ }
+ }
+
+ for( var i = 0; i < elesToMove.length; i++ ){
+ var ele = elesToMove[i];
+ var info = ele._private.scratch.breadthfirst;
+ var intEle = info.intEle;
+ var intInfo = intEle._private.scratch.breadthfirst;
+
+ depths[ info.depth ].splice( info.index, 1 ); // remove from old depth & index
+
+ // add to end of new depth
+ var newDepth = intInfo.depth + 1;
+ while( newDepth > depths.length - 1 ){
+ depths.push([]);
+ }
+ depths[ newDepth ].push( ele );
+
+ info.depth = newDepth;
+ info.index = depths[newDepth].length - 1;
+ }
+
+ assignDepthsToEles();
+ }
+
+ // find min distance we need to leave between nodes
+ var minDistance = 0;
+ if( options.avoidOverlap ){
+ for( var i = 0; i < nodes.length; i++ ){
+ var w = nodes[i].outerWidth();
+ var h = nodes[i].outerHeight();
+
+ minDistance = Math.max(minDistance, w, h);
+ }
+ minDistance *= 1.75; // just to have some nice spacing
+ }
+
+ // get the weighted percent for an element based on its connectivity to other levels
+ var cachedWeightedPercent = {};
+ var getWeightedPercent = function( ele ){
+ if( cachedWeightedPercent[ ele.id() ] ){
+ return cachedWeightedPercent[ ele.id() ];
+ }
+
+ var eleDepth = ele._private.scratch.breadthfirst.depth;
+ var neighbors = ele.neighborhood().nodes();
+ var percent = 0;
+ var samples = 0;
+
+ for( var i = 0; i < neighbors.length; i++ ){
+ var neighbor = neighbors[i];
+ var index = neighbor._private.scratch.breadthfirst.index;
+ var depth = neighbor._private.scratch.breadthfirst.depth;
+ var nDepth = depths[depth].length;
+
+ if( eleDepth > depth || eleDepth === 0 ){ // only get influenced by elements above
+ percent += index / nDepth;
+ samples++;
+ }
+ }
+
+ samples = Math.max(1, samples);
+ percent = percent / samples;
+
+ if( samples === 0 ){ // so lone nodes have a "don't care" state in sorting
+ percent = undefined;
+ }
+
+ cachedWeightedPercent[ ele.id() ] = percent;
+ return percent;
+ };
+
+
+ // rearrange the indices in each depth level based on connectivity
+
+ var sortFn = function(a, b){
+ var apct = getWeightedPercent( a );
+ var bpct = getWeightedPercent( b );
+
+ return apct - bpct;
+ };
+
+ for( var times = 0; times < 3; times++ ){ // do it a few times b/c the depths are dynamic and we want a more stable result
+
+ for( var i = 0; i < depths.length; i++ ){
+ depths[i] = depths[i].sort( sortFn );
+ }
+ assignDepthsToEles(); // and update
+
+ }
+
+ var biggestDepthSize = 0;
+ for( var i = 0; i < depths.length; i++ ){
+ biggestDepthSize = Math.max( depths[i].length, biggestDepthSize );
+ }
+
+ var center = {
+ x: bb.x1 + bb.w/2,
+ y: bb.x1 + bb.h/2
+ };
+
+ var getPosition = function( ele, isBottomDepth ){
+ var info = ele._private.scratch.breadthfirst;
+ var depth = info.depth;
+ var index = info.index;
+ var depthSize = depths[depth].length;
+
+ if( options.strictHierarchy ){
+ depthSize = biggestDepthSize;
+ }
+
+ var distanceX = Math.max( bb.w / (depthSize + 1), minDistance );
+ var distanceY = Math.max( bb.h / (depths.length + 1), minDistance );
+ var radiusStepSize = Math.min( bb.w / 2 / depths.length, bb.h / 2 / depths.length );
+ radiusStepSize = Math.max( radiusStepSize, minDistance );
+
+ if( options.strictHierarchy && !options.circle ){
+
+ var epos = {
+ x: center.x + (index + 1 - (depthSize + 1)/2) * distanceX,
+ y: (depth + 1) * distanceY
+ };
+
+ if( isBottomDepth ){
+ return epos;
+ }
+
+ var succs = successors[ ele.id() ];
+ if( succs ){
+ epos.x = 0;
+
+ for( var i = 0 ; i < succs.length; i++ ){
+ var spos = pos[ succs[i].id() ];
+
+ epos.x += spos.x;
+ }
+
+ epos.x /= succs.length;
+ } else {
+ //debugger;
+ }
+
+ return epos;
+
+ } else {
+ if( options.circle ){
+ var radius = radiusStepSize * depth + radiusStepSize - (depths.length > 0 && depths[0].length <= 3 ? radiusStepSize/2 : 0);
+ var theta = 2 * Math.PI / depths[depth].length * index;
+
+ if( depth === 0 && depths[0].length === 1 ){
+ radius = 1;
+ }
+
+ return {
+ x: center.x + radius * Math.cos(theta),
+ y: center.y + radius * Math.sin(theta)
+ };
+
+ } else {
+ return {
+ x: center.x + (index + 1 - (depthSize + 1)/2) * distanceX,
+ y: (depth + 1) * distanceY
+ };
+ }
+ }
+
+ };
+
+ // get positions in reverse depth order
+ var pos = {};
+ for( var i = depths.length - 1; i >=0; i-- ){
+ var depth = depths[i];
+
+ for( var j = 0; j < depth.length; j++ ){
+ var node = depth[j];
+
+ pos[ node.id() ] = getPosition( node, i === depths.length - 1 );
+ }
+ }
+
+ nodes.layoutPositions(this, options, function(){
+ return pos[ this.id() ];
+ });
+
+ return this; // chaining
+ };
+
+ $$('layout', 'breadthfirst', BreadthFirstLayout);
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ var defaults = {
+ fit: true, // whether to fit the viewport to the graph
+ padding: 30, // the padding on fit
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ avoidOverlap: true, // prevents node overlap, may overflow boundingBox and radius if not enough space
+ radius: undefined, // the radius of the circle
+ startAngle: 3/2 * Math.PI, // the position of the first node
+ counterclockwise: false, // whether the layout should go counterclockwise (true) or clockwise (false)
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ ready: undefined, // callback on layoutready
+ stop: undefined // callback on layoutstop
+ };
+
+ function CircleLayout( options ){
+ this.options = $$.util.extend({}, defaults, options);
+ }
+
+ CircleLayout.prototype.run = function(){
+ var params = this.options;
+ var options = params;
+
+ var cy = params.cy;
+ var eles = options.eles;
+
+ var nodes = eles.nodes().not(':parent');
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ var center = {
+ x: bb.x1 + bb.w/2,
+ y: bb.y1 + bb.h/2
+ };
+
+ var theta = options.startAngle;
+ var dTheta = 2 * Math.PI / nodes.length;
+ var r;
+
+ var minDistance = 0;
+ for( var i = 0; i < nodes.length; i++ ){
+ var w = nodes[i].outerWidth();
+ var h = nodes[i].outerHeight();
+
+ minDistance = Math.max(minDistance, w, h);
+ }
+
+ if( $$.is.number(options.radius) ){
+ r = options.radius;
+ } else if( nodes.length <= 1 ){
+ r = 0;
+ } else {
+ r = Math.min( bb.h, bb.w )/2 - minDistance;
+ }
+
+ // calculate the radius
+ if( nodes.length > 1 && options.avoidOverlap ){ // but only if more than one node (can't overlap)
+ minDistance *= 1.75; // just to have some nice spacing
+
+ var dTheta = 2 * Math.PI / nodes.length;
+ var dcos = Math.cos(dTheta) - Math.cos(0);
+ var dsin = Math.sin(dTheta) - Math.sin(0);
+ var rMin = Math.sqrt( minDistance * minDistance / ( dcos*dcos + dsin*dsin ) ); // s.t. no nodes overlapping
+ r = Math.max( rMin, r );
+ }
+
+ var getPos = function( i, ele ){
+ var rx = r * Math.cos( theta );
+ var ry = r * Math.sin( theta );
+ var pos = {
+ x: center.x + rx,
+ y: center.y + ry
+ };
+
+ theta = options.counterclockwise ? theta - dTheta : theta + dTheta;
+ return pos;
+ };
+
+ nodes.layoutPositions( this, options, getPos );
+
+ return this; // chaining
+ };
+
+ $$('layout', 'circle', CircleLayout);
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // default layout options
+ var defaults = {
+ animate: true, // whether to show the layout as it's running
+ refresh: 1, // number of ticks per frame; higher is faster but more jerky
+ maxSimulationTime: 4000, // max length in ms to run the layout
+ ungrabifyWhileSimulating: false, // so you can't drag nodes during layout
+ fit: true, // on every layout reposition of nodes, fit the viewport
+ padding: 30, // padding around the simulation
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+
+ // layout event callbacks
+ ready: function(){}, // on layoutready
+ stop: function(){}, // on layoutstop
+
+ // positioning options
+ randomize: false, // use random node positions at beginning of layout
+ avoidOverlap: true, // if true, prevents overlap of node bounding boxes
+ handleDisconnected: true, // if true, avoids disconnected components from overlapping
+ nodeSpacing: function( node ){ return 10; }, // extra spacing around nodes
+ flow: undefined, // use DAG/tree flow layout if specified, e.g. { axis: 'y', minSeparation: 30 }
+ alignment: undefined, // relative alignment constraints on nodes, e.g. function( node ){ return { x: 0, y: 1 } }
+
+ // different methods of specifying edge length
+ // each can be a constant numerical value or a function like `function( edge ){ return 2; }`
+ edgeLength: undefined, // sets edge length directly in simulation
+ edgeSymDiffLength: undefined, // symmetric diff edge length in simulation
+ edgeJaccardLength: undefined, // jaccard edge length in simulation
+
+ // iterations of cola algorithm; uses default values on undefined
+ unconstrIter: undefined, // unconstrained initial layout iterations
+ userConstIter: undefined, // initial layout iterations with user-specified constraints
+ allConstIter: undefined, // initial layout iterations with all constraints including non-overlap
+
+ // infinite layout options
+ infinite: false // overrides all other options for a forces-all-the-time mode
+ };
+
+ // constructor
+ // options : object containing layout options
+ function ColaLayout( options ){
+ this.options = $$.util.extend(true, {}, defaults, options);
+ }
+
+ // runs the layout
+ ColaLayout.prototype.run = function(){
+ var layout = this;
+ var options = this.options;
+
+ $$.util.require('cola', function(cola){
+
+ var cy = options.cy; // cy is automatically populated for us in the constructor
+ var eles = options.eles;
+ var nodes = eles.nodes();
+ var edges = eles.edges();
+ var ready = false;
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ var getOptVal = function( val, ele ){
+ if( $$.is.fn(val) ){
+ var fn = val;
+ return fn.apply( ele, [ ele ] );
+ } else {
+ return val;
+ }
+ };
+
+ var updateNodePositions = function(){
+ var x = { min: Infinity, max: -Infinity };
+ var y = { min: Infinity, max: -Infinity };
+
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+ var scratch = node._private.scratch.cola;
+
+ x.min = Math.min( x.min, scratch.x );
+ x.max = Math.max( x.max, scratch.x );
+
+ y.min = Math.min( y.min, scratch.y );
+ y.max = Math.max( y.max, scratch.y );
+ }
+
+ nodes.positions(function(i, node){
+ var pos = node._private.position;
+ var scratch = node._private.scratch.cola;
+
+ if( !node.grabbed() ){
+ pos.x = bb.x1 + scratch.x - x.min;
+ pos.y = bb.y1 + scratch.y - y.min;
+ }
+ });
+
+ if( !ready ){
+ onReady();
+ ready = true;
+ }
+
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+ };
+
+ var onDone = function(){
+ layout.manuallyStopped = false;
+
+ if( options.ungrabifyWhileSimulating ){
+ grabbableNodes.grabify();
+ }
+
+ nodes.off('grab free position', grabHandler);
+ nodes.off('lock unlock', lockHandler);
+
+ // trigger layoutstop when the layout stops (e.g. finishes)
+ layout.one('layoutstop', options.stop);
+ layout.trigger({ type: 'layoutstop', layout: layout });
+ };
+
+ var onReady = function(){
+ // trigger layoutready when each node has had its position set at least once
+ layout.one('layoutready', options.ready);
+ layout.trigger({ type: 'layoutready', layout: layout });
+ };
+
+ var ticksPerFrame = options.refresh;
+ var tickSkip = 1; // frames until a tick; used to slow down sim for debugging
+
+ if( options.refresh < 0 ){
+ tickSkip = Math.abs( options.refresh );
+ ticksPerFrame = 1;
+ } else {
+ ticksPerFrame = Math.max( 1, ticksPerFrame ); // at least 1
+ }
+
+ var adaptor = cola.adaptor({
+ trigger: function( e ){ // on sim event
+ switch( e.type ){
+ case 'tick':
+ if( options.animate ){
+ updateNodePositions();
+ }
+ break;
+
+ case 'end':
+ updateNodePositions();
+ if( !options.infinite || layout.manuallyStopped ){ onDone(); }
+ break;
+ }
+ },
+
+ kick: function( tick ){ // kick off the simulation
+ var skip = 0;
+
+ var inftick = function(){
+ var ret = tick();
+
+ if( ret && options.infinite ){ // resume layout if done
+ adaptor.resume(); // resume => new kick
+ }
+
+ return ret; // allow regular finish b/c of new kick
+ };
+
+ var multitick = function(){ // multiple ticks in a row
+ var ret;
+
+ // skip ticks to slow down layout for debugging
+ var thisSkip = skip;
+ skip = (skip + 1) % tickSkip;
+ if( thisSkip !== 0 ){
+ return false;
+ }
+
+ for( var i = 0; i < ticksPerFrame && !ret; i++ ){
+ ret = ret || inftick(); // pick up true ret vals => sim done
+ }
+
+ return ret;
+ };
+
+ if( options.animate ){
+ var frame = function(){
+ if( multitick() ){ return; }
+
+ $$.util.requestAnimationFrame( frame );
+ };
+
+ $$.util.requestAnimationFrame( frame );
+ } else {
+ while( !inftick() ){}
+ }
+ },
+
+ on: function( type, listener ){}, // dummy; not needed
+
+ drag: function(){} // TODO
+ });
+ layout.adaptor = adaptor;
+
+ // if set no grabbing during layout
+ var grabbableNodes = nodes.filter(':grabbable');
+ if( options.ungrabifyWhileSimulating ){
+ grabbableNodes.ungrabify();
+ }
+
+ // handle node dragging
+ var grabHandler;
+ nodes.on('grab free position', grabHandler = function(e){
+ var node = this;
+ var scrCola = node._private.scratch.cola;
+ var pos = node._private.position;
+
+ if( node.grabbed() ){
+ scrCola.x = pos.x - bb.x1;
+ scrCola.y = pos.y - bb.y1;
+
+ adaptor.dragstart( scrCola );
+ } else if( $$.is.number(scrCola.x) && $$.is.number(scrCola.y) ){
+ pos.x = scrCola.x + bb.x1;
+ pos.y = scrCola.y + bb.y1;
+ }
+
+ switch( e.type ){
+ case 'grab':
+ adaptor.dragstart( scrCola );
+ adaptor.resume();
+ break;
+ case 'free':
+ adaptor.dragend( scrCola );
+ break;
+ }
+
+ });
+
+ var lockHandler;
+ nodes.on('lock unlock', lockHandler = function(e){
+ var node = this;
+ var scrCola = node._private.scratch.cola;
+
+ if( node.locked() ){
+ adaptor.dragstart( scrCola );
+ } else {
+ adaptor.dragend( scrCola );
+ }
+ });
+
+ var nonparentNodes = nodes.stdFilter(function( node ){
+ return !node.isParent();
+ });
+
+ // add nodes to cola
+ adaptor.nodes( nonparentNodes.map(function( node, i ){
+ var padding = getOptVal( options.nodeSpacing, node );
+ var pos = node.position();
+
+ var struct = node._private.scratch.cola = {
+ x: options.randomize ? Math.round( Math.random() * bb.w ) : pos.x,
+ y: options.randomize ? Math.round( Math.random() * bb.h ) : pos.y,
+ width: node.outerWidth() + 2*padding,
+ height: node.outerHeight() + 2*padding,
+ index: i
+ };
+
+ return struct;
+ }) );
+
+ if( options.alignment ){ // then set alignment constraints
+
+ var offsetsX = [];
+ var offsetsY = [];
+
+ nonparentNodes.forEach(function( node ){
+ var align = getOptVal( options.alignment, node );
+ var scrCola = node._private.scratch.cola;
+ var index = scrCola.index;
+
+ if( !align ){ return; }
+
+ if( align.x != null ){
+ offsetsX.push({
+ node: index,
+ offset: align.x
+ });
+ }
+
+ if( align.y != null ){
+ offsetsY.push({
+ node: index,
+ offset: align.y
+ });
+ }
+ });
+
+ // add alignment constraints on nodes
+ var constraints = [];
+
+ if( offsetsX.length > 0 ){
+ constraints.push({
+ type: 'alignment',
+ axis: 'x',
+ offsets: offsetsX
+ });
+ }
+
+ if( offsetsY.length > 0 ){
+ constraints.push({
+ type: 'alignment',
+ axis: 'y',
+ offsets: offsetsY
+ });
+ }
+
+ adaptor.constraints( constraints );
+
+ }
+
+ // add compound nodes to cola
+ adaptor.groups( nodes.stdFilter(function( node ){
+ return node.isParent();
+ }).map(function( node, i ){ // add basic group incl leaf nodes
+ node._private.scratch.cola = {
+ index: i,
+
+ leaves: node.children().stdFilter(function( child ){
+ return !child.isParent();
+ }).map(function( child ){
+ return child[0]._private.scratch.cola.index;
+ })
+ };
+
+ return node;
+ }).map(function( node ){ // add subgroups
+ node._private.scratch.cola.groups = node.children().stdFilter(function( child ){
+ return child.isParent();
+ }).map(function( child ){
+ return child._private.scratch.cola.index;
+ });
+
+ return node._private.scratch.cola;
+ }) );
+
+ // get the edge length setting mechanism
+ var length;
+ var lengthFnName;
+ if( options.edgeLength != null ){
+ length = options.edgeLength;
+ lengthFnName = 'linkDistance';
+ } else if( options.edgeSymDiffLength != null ){
+ length = options.edgeSymDiffLength;
+ lengthFnName = 'symmetricDiffLinkLengths';
+ } else if( options.edgeJaccardLength != null ){
+ length = options.edgeJaccardLength;
+ lengthFnName = 'jaccardLinkLengths';
+ } else {
+ length = 100;
+ lengthFnName = 'linkDistance';
+ }
+
+ var lengthGetter = function( link ){
+ return link.calcLength;
+ };
+
+ // add the edges to cola
+ adaptor.links( edges.stdFilter(function( edge ){
+ return !edge.source().isParent() && !edge.target().isParent();
+ }).map(function( edge, i ){
+ var c = edge._private.scratch.cola = {
+ source: edge.source()[0]._private.scratch.cola.index,
+ target: edge.target()[0]._private.scratch.cola.index
+ };
+
+ if( length != null ){
+ c.calcLength = getOptVal( length, edge );
+ }
+
+ return c;
+ }) );
+
+ adaptor.size([ bb.w, bb.h ]);
+
+ if( length != null ){
+ adaptor[ lengthFnName ]( lengthGetter );
+ }
+
+ // set the flow of cola
+ if( options.flow ){
+ var flow;
+ var defAxis = 'y';
+ var defMinSep = 50;
+
+ if( $$.is.string(options.flow) ){
+ flow = {
+ axis: options.flow,
+ minSeparation: defMinSep
+ };
+ } else if( $$.is.number(options.flow) ){
+ flow = {
+ axis: defAxis,
+ minSeparation: options.flow
+ };
+ } else if( $$.is.plainObject(options.flow) ){
+ flow = options.flow;
+
+ flow.axis = flow.axis || defAxis;
+ flow.minSeparation = flow.minSeparation != null ? flow.minSeparation : defMinSep;
+ } else { // e.g. options.flow: true
+ flow = {
+ axis: defAxis,
+ minSeparation: defMinSep
+ };
+ }
+
+ adaptor.flowLayout( flow.axis , flow.minSeparation );
+ }
+
+ adaptor
+ .avoidOverlaps( options.avoidOverlap )
+ .handleDisconnected( options.handleDisconnected )
+ .start( options.unconstrIter, options.userConstIter, options.allConstIter)
+ ;
+
+ layout.trigger({ type: 'layoutstart', layout: layout });
+
+ if( !options.infinite ){
+ setTimeout(function(){
+ adaptor.stop();
+ }, options.maxSimulationTime);
+ }
+
+ }); // require
+
+ return this; // chaining
+ };
+
+ // called on continuous layouts to stop them before they finish
+ ColaLayout.prototype.stop = function(){
+ if( this.adaptor ){
+ this.manuallyStopped = true;
+ this.adaptor.stop();
+ }
+
+ return this; // chaining
+ };
+
+ // register the layout
+ $$('layout', 'cola', ColaLayout);
+
+})(cytoscape);
+;(function($$){ 'use strict';
+
+ var defaults = {
+ fit: true, // whether to fit the viewport to the graph
+ padding: 30, // the padding on fit
+ startAngle: 3/2 * Math.PI, // the position of the first node
+ counterclockwise: false, // whether the layout should go counterclockwise/anticlockwise (true) or clockwise (false)
+ minNodeSpacing: 10, // min spacing between outside of nodes (used for radius adjustment)
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ avoidOverlap: true, // prevents node overlap, may overflow boundingBox if not enough space
+ height: undefined, // height of layout area (overrides container height)
+ width: undefined, // width of layout area (overrides container width)
+ concentric: function(){ // returns numeric value for each node, placing higher nodes in levels towards the centre
+ return this.degree();
+ },
+ levelWidth: function(nodes){ // the variation of concentric values in each level
+ return nodes.maxDegree() / 4;
+ },
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ ready: undefined, // callback on layoutready
+ stop: undefined // callback on layoutstop
+ };
+
+ function ConcentricLayout( options ){
+ this.options = $$.util.extend({}, defaults, options);
+ }
+
+ ConcentricLayout.prototype.run = function(){
+ var params = this.options;
+ var options = params;
+
+ var cy = params.cy;
+
+ var eles = options.eles;
+ var nodes = eles.nodes().not(':parent');
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ var center = {
+ x: bb.x1 + bb.w/2,
+ y: bb.y1 + bb.h/2
+ };
+
+ var nodeValues = []; // { node, value }
+ var theta = options.startAngle;
+ var maxNodeSize = 0;
+
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+ var value;
+
+ // calculate the node value
+ value = options.concentric.call(node);
+ nodeValues.push({
+ value: value,
+ node: node
+ });
+
+ // for style mapping
+ node._private.layoutData.concentric = value;
+ }
+
+ // in case we used the `concentric` in style
+ nodes.updateStyle();
+
+ // calculate max size now based on potentially updated mappers
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+
+ maxNodeSize = Math.max( maxNodeSize, node.outerWidth(), node.outerHeight() );
+ }
+
+ // sort node values in descreasing order
+ nodeValues.sort(function(a, b){
+ return b.value - a.value;
+ });
+
+ var levelWidth = options.levelWidth( nodes );
+
+ // put the values into levels
+ var levels = [ [] ];
+ var currentLevel = levels[0];
+ for( var i = 0; i < nodeValues.length; i++ ){
+ var val = nodeValues[i];
+
+ if( currentLevel.length > 0 ){
+ var diff = Math.abs( currentLevel[0].value - val.value );
+
+ if( diff >= levelWidth ){
+ currentLevel = [];
+ levels.push( currentLevel );
+ }
+ }
+
+ currentLevel.push( val );
+ }
+
+ // create positions from levels
+
+ var pos = {}; // id => position
+ var r = 0;
+ var minDist = maxNodeSize + options.minNodeSpacing; // min dist between nodes
+
+ if( !options.avoidOverlap ){ // then strictly constrain to bb
+ var firstLvlHasMulti = levels.length > 0 && levels[0].length > 1;
+ var maxR = ( Math.min(bb.w, bb.h) / 2 - minDist );
+ var rStep = maxR / ( levels.length + firstLvlHasMulti ? 1 : 0 );
+
+ minDist = Math.min( minDist, rStep );
+ }
+
+ for( var i = 0; i < levels.length; i++ ){
+ var level = levels[i];
+ var dTheta = 2 * Math.PI / level.length;
+
+ // calculate the radius
+ if( level.length > 1 && options.avoidOverlap ){ // but only if more than one node (can't overlap)
+ var dcos = Math.cos(dTheta) - Math.cos(0);
+ var dsin = Math.sin(dTheta) - Math.sin(0);
+ var rMin = Math.sqrt( minDist * minDist / ( dcos*dcos + dsin*dsin ) ); // s.t. no nodes overlapping
+ r = Math.max( rMin, r );
+ }
+
+ for( var j = 0; j < level.length; j++ ){
+ var val = level[j];
+ var theta = options.startAngle + (options.counterclockwise ? 1 : -1) * dTheta * j;
+
+ var p = {
+ x: center.x + r * Math.cos(theta),
+ y: center.y + r * Math.sin(theta)
+ };
+
+ pos[ val.node.id() ] = p;
+ }
+
+ r += minDist;
+
+ }
+
+ // position the nodes
+ nodes.layoutPositions(this, options, function(){
+ var id = this.id();
+
+ return pos[id];
+ });
+
+ return this; // chaining
+ };
+
+ $$('layout', 'concentric', ConcentricLayout);
+
+})( cytoscape );
+
+/*
+ The CoSE layout was written by Gerardo Huck.
+
+ Modifications tracked on Github.
+*/
+
+;(function($$) { 'use strict';
+
+ var DEBUG;
+
+ /**
+ * @brief : default layout options
+ */
+ var defaults = {
+ // Called on `layoutready`
+ ready : function() {},
+
+ // Called on `layoutstop`
+ stop : function() {},
+
+ // Whether to animate while running the layout
+ animate : true,
+
+ // Number of iterations between consecutive screen positions update (0 -> only updated on the end)
+ refresh : 4,
+
+ // Whether to fit the network view after when done
+ fit : true,
+
+ // Padding on fit
+ padding : 30,
+
+ // Constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ boundingBox : undefined,
+
+ // Whether to randomize node positions on the beginning
+ randomize : true,
+
+ // Whether to use the JS console to print debug messages
+ debug : false,
+
+ // Node repulsion (non overlapping) multiplier
+ nodeRepulsion : 400000,
+
+ // Node repulsion (overlapping) multiplier
+ nodeOverlap : 10,
+
+ // Ideal edge (non nested) length
+ idealEdgeLength : 10,
+
+ // Divisor to compute edge forces
+ edgeElasticity : 100,
+
+ // Nesting factor (multiplier) to compute ideal edge length for nested edges
+ nestingFactor : 5,
+
+ // Gravity force (constant)
+ gravity : 250,
+
+ // Maximum number of iterations to perform
+ numIter : 100,
+
+ // Initial temperature (maximum node displacement)
+ initialTemp : 200,
+
+ // Cooling factor (how the temperature is reduced between consecutive iterations
+ coolingFactor : 0.95,
+
+ // Lower temperature threshold (below this point the layout will end)
+ minTemp : 1.0
+ };
+
+
+ /**
+ * @brief : constructor
+ * @arg options : object containing layout options
+ */
+ function CoseLayout(options) {
+ this.options = $$.util.extend({}, defaults, options);
+ }
+
+
+ /**
+ * @brief : runs the layout
+ */
+ CoseLayout.prototype.run = function() {
+ var options = this.options;
+ var cy = options.cy;
+ var layout = this;
+
+ layout.stopped = false;
+
+ layout.trigger({ type: 'layoutstart', layout: layout });
+
+ // Set DEBUG - Global variable
+ if (true === options.debug) {
+ DEBUG = true;
+ } else {
+ DEBUG = false;
+ }
+
+ // Get start time
+ var startTime = new Date();
+
+ // Initialize layout info
+ var layoutInfo = createLayoutInfo(cy, layout, options);
+
+ // Show LayoutInfo contents if debugging
+ if (DEBUG) {
+ printLayoutInfo(layoutInfo);
+ }
+
+ // If required, randomize node positions
+ if (true === options.randomize) {
+ randomizePositions(layoutInfo, cy);
+ }
+
+ updatePositions(layoutInfo, cy, options);
+
+ var mainLoop = function(i){
+ if( layout.stopped ){
+ logDebug("Layout manually stopped. Stopping computation in step " + i);
+ return false;
+ }
+
+ // Do one step in the phisical simulation
+ step(layoutInfo, cy, options, i);
+
+ // Update temperature
+ layoutInfo.temperature = layoutInfo.temperature * options.coolingFactor;
+ logDebug("New temperature: " + layoutInfo.temperature);
+
+ if (layoutInfo.temperature < options.minTemp) {
+ logDebug("Temperature drop below minimum threshold. Stopping computation in step " + i);
+ return false;
+ }
+
+ return true;
+ };
+
+ var done = function(){
+ refreshPositions(layoutInfo, cy, options);
+
+ // Fit the graph if necessary
+ if (true === options.fit) {
+ cy.fit( options.padding );
+ }
+
+ // Get end time
+ var endTime = new Date();
+
+ console.info('Layout took ' + (endTime - startTime) + ' ms');
+
+ // Layout has finished
+ layout.one('layoutstop', options.stop);
+ layout.trigger({ type: 'layoutstop', layout: layout });
+ };
+
+ if( options.animate ){
+ var i = 0;
+ var frame = function(){
+
+ var f = 0;
+ var loopRet;
+ while( f < options.refresh && i < options.numIter ){
+ var loopRet = mainLoop(i);
+ if( loopRet === false ){ break; }
+
+ f++;
+ i++;
+ }
+
+ refreshPositions(layoutInfo, cy, options);
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+
+ if ( loopRet !== false && i + 1 < options.numIter ) {
+ $$.util.requestAnimationFrame( frame );
+ } else {
+ done();
+ }
+ };
+
+ $$.util.requestAnimationFrame( frame );
+ } else {
+ for (var i = 0; i < options.numIter; i++) {
+ if( mainLoop(i) === false ){ break; }
+ }
+
+ done();
+ }
+
+ return this; // chaining
+ };
+
+
+ /**
+ * @brief : called on continuous layouts to stop them before they finish
+ */
+ CoseLayout.prototype.stop = function(){
+ this.stopped = true;
+
+ return this; // chaining
+ };
+
+
+ /**
+ * @brief : Creates an object which is contains all the data
+ * used in the layout process
+ * @arg cy : cytoscape.js object
+ * @return : layoutInfo object initialized
+ */
+ var createLayoutInfo = function(cy, layout, options) {
+ // Shortcut
+ var edges = options.eles.edges();
+ var nodes = options.eles.nodes();
+
+ var layoutInfo = {
+ layout : layout,
+ layoutNodes : [],
+ idToIndex : {},
+ nodeSize : nodes.size(),
+ graphSet : [],
+ indexToGraph : [],
+ layoutEdges : [],
+ edgeSize : edges.size(),
+ temperature : options.initialTemp,
+ clientWidth : cy.width(),
+ clientHeight : cy.width(),
+ boundingBox : $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } )
+ };
+
+ // Iterate over all nodes, creating layout nodes
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var tempNode = {};
+ tempNode.id = nodes[i].data('id');
+ tempNode.parentId = nodes[i].data('parent');
+ tempNode.children = [];
+ tempNode.positionX = nodes[i].position('x');
+ tempNode.positionY = nodes[i].position('y');
+ tempNode.offsetX = 0;
+ tempNode.offsetY = 0;
+ tempNode.height = nodes[i].height();
+ tempNode.width = nodes[i].width();
+ tempNode.maxX = tempNode.positionX + tempNode.width / 2;
+ tempNode.minX = tempNode.positionX - tempNode.width / 2;
+ tempNode.maxY = tempNode.positionY + tempNode.height / 2;
+ tempNode.minY = tempNode.positionY - tempNode.height / 2;
+ tempNode.padLeft = nodes[i]._private.style['padding-left'].pxValue;
+ tempNode.padRight = nodes[i]._private.style['padding-right'].pxValue;
+ tempNode.padTop = nodes[i]._private.style['padding-top'].pxValue;
+ tempNode.padBottom = nodes[i]._private.style['padding-bottom'].pxValue;
+
+ // Add new node
+ layoutInfo.layoutNodes.push(tempNode);
+ // Add entry to id-index map
+ layoutInfo.idToIndex[tempNode.id] = i;
+ }
+
+ // Inline implementation of a queue, used for traversing the graph in BFS order
+ var queue = [];
+ var start = 0; // Points to the start the queue
+ var end = -1; // Points to the end of the queue
+
+ var tempGraph = [];
+
+ // Second pass to add child information and
+ // initialize queue for hierarchical traversal
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var n = layoutInfo.layoutNodes[i];
+ var p_id = n.parentId;
+ // Check if node n has a parent node
+ if (null != p_id) {
+ // Add node Id to parent's list of children
+ layoutInfo.layoutNodes[layoutInfo.idToIndex[p_id]].children.push(n.id);
+ } else {
+ // If a node doesn't have a parent, then it's in the root graph
+ queue[++end] = n.id;
+ tempGraph.push(n.id);
+ }
+ }
+
+ // Add root graph to graphSet
+ layoutInfo.graphSet.push(tempGraph);
+
+ // Traverse the graph, level by level,
+ while (start <= end) {
+ // Get the node to visit and remove it from queue
+ var node_id = queue[start++];
+ var node_ix = layoutInfo.idToIndex[node_id];
+ var node = layoutInfo.layoutNodes[node_ix];
+ var children = node.children;
+ if (children.length > 0) {
+ // Add children nodes as a new graph to graph set
+ layoutInfo.graphSet.push(children);
+ // Add children to que queue to be visited
+ for (var i = 0; i < children.length; i++) {
+ queue[++end] = children[i];
+ }
+ }
+ }
+
+ // Create indexToGraph map
+ for (var i = 0; i < layoutInfo.graphSet.length; i++) {
+ var graph = layoutInfo.graphSet[i];
+ for (var j = 0; j < graph.length; j++) {
+ var index = layoutInfo.idToIndex[graph[j]];
+ layoutInfo.indexToGraph[index] = i;
+ }
+ }
+
+ // Iterate over all edges, creating Layout Edges
+ for (var i = 0; i < layoutInfo.edgeSize; i++) {
+ var e = edges[i];
+ var tempEdge = {};
+ tempEdge.id = e.data('id');
+ tempEdge.sourceId = e.data('source');
+ tempEdge.targetId = e.data('target');
+
+ // Compute ideal length
+ var idealLength = options.idealEdgeLength;
+
+ // Check if it's an inter graph edge
+ var sourceIx = layoutInfo.idToIndex[tempEdge.sourceId];
+ var targetIx = layoutInfo.idToIndex[tempEdge.targetId];
+ var sourceGraph = layoutInfo.indexToGraph[sourceIx];
+ var targetGraph = layoutInfo.indexToGraph[targetIx];
+
+ if (sourceGraph != targetGraph) {
+ // Find lowest common graph ancestor
+ var lca = findLCA(tempEdge.sourceId, tempEdge.targetId, layoutInfo);
+
+ // Compute sum of node depths, relative to lca graph
+ var lcaGraph = layoutInfo.graphSet[lca];
+ var depth = 0;
+
+ // Source depth
+ var tempNode = layoutInfo.layoutNodes[sourceIx];
+ while (-1 === $.inArray(tempNode.id, lcaGraph)) {
+ tempNode = layoutInfo.layoutNodes[layoutInfo.idToIndex[tempNode.parentId]];
+ depth++;
+ }
+
+ // Target depth
+ tempNode = layoutInfo.layoutNodes[targetIx];
+ while (-1 === $.inArray(tempNode.id, lcaGraph)) {
+ tempNode = layoutInfo.layoutNodes[layoutInfo.idToIndex[tempNode.parentId]];
+ depth++;
+ }
+
+ logDebug('LCA of nodes ' + tempEdge.sourceId + ' and ' + tempEdge.targetId +
+ ". Index: " + lca + " Contents: " + lcaGraph.toString() +
+ ". Depth: " + depth);
+
+ // Update idealLength
+ idealLength *= depth * options.nestingFactor;
+ }
+
+ tempEdge.idealLength = idealLength;
+
+ layoutInfo.layoutEdges.push(tempEdge);
+ }
+
+ // Finally, return layoutInfo object
+ return layoutInfo;
+ };
+
+
+ /**
+ * @brief : This function finds the index of the lowest common
+ * graph ancestor between 2 nodes in the subtree
+ * (from the graph hierarchy induced tree) whose
+ * root is graphIx
+ *
+ * @arg node1: node1's ID
+ * @arg node2: node2's ID
+ * @arg layoutInfo: layoutInfo object
+ *
+ */
+ var findLCA = function(node1, node2, layoutInfo) {
+ // Find their common ancester, starting from the root graph
+ var res = findLCA_aux(node1, node2, 0, layoutInfo);
+ if (2 > res.count) {
+ // If aux function couldn't find the common ancester,
+ // then it is the root graph
+ return 0;
+ } else {
+ return res.graph;
+ }
+ };
+
+
+ /**
+ * @brief : Auxiliary function used for LCA computation
+ *
+ * @arg node1 : node1's ID
+ * @arg node2 : node2's ID
+ * @arg graphIx : subgraph index
+ * @arg layoutInfo : layoutInfo object
+ *
+ * @return : object of the form {count: X, graph: Y}, where:
+ * X is the number of ancesters (max: 2) found in
+ * graphIx (and it's subgraphs),
+ * Y is the graph index of the lowest graph containing
+ * all X nodes
+ */
+ var findLCA_aux = function(node1, node2, graphIx, layoutInfo) {
+ var graph = layoutInfo.graphSet[graphIx];
+ // If both nodes belongs to graphIx
+ if (-1 < $.inArray(node1, graph) && -1 < $.inArray(node2, graph)) {
+ return {count:2, graph:graphIx};
+ }
+
+ // Make recursive calls for all subgraphs
+ var c = 0;
+ for (var i = 0; i < graph.length; i++) {
+ var nodeId = graph[i];
+ var nodeIx = layoutInfo.idToIndex[nodeId];
+ var children = layoutInfo.layoutNodes[nodeIx].children;
+
+ // If the node has no child, skip it
+ if (0 === children.length) {
+ continue;
+ }
+
+ var childGraphIx = layoutInfo.indexToGraph[layoutInfo.idToIndex[children[0]]];
+ var result = findLCA_aux(node1, node2, childGraphIx, layoutInfo);
+ if (0 === result.count) {
+ // Neither node1 nor node2 are present in this subgraph
+ continue;
+ } else if (1 === result.count) {
+ // One of (node1, node2) is present in this subgraph
+ c++;
+ if (2 === c) {
+ // We've already found both nodes, no need to keep searching
+ break;
+ }
+ } else {
+ // Both nodes are present in this subgraph
+ return result;
+ }
+ }
+
+ return {count:c, graph:graphIx};
+ };
+
+
+ /**
+ * @brief: printsLayoutInfo into js console
+ * Only used for debbuging
+ */
+ var printLayoutInfo = function(layoutInfo) {
+ if (!DEBUG) {
+ return;
+ }
+ console.debug("layoutNodes:");
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var n = layoutInfo.layoutNodes[i];
+ var s =
+ "\nindex: " + i +
+ "\nId: " + n.id +
+ "\nChildren: " + n.children.toString() +
+ "\nparentId: " + n.parentId +
+ "\npositionX: " + n.positionX +
+ "\npositionY: " + n.positionY +
+ "\nOffsetX: " + n.offsetX +
+ "\nOffsetY: " + n.offsetY +
+ "\npadLeft: " + n.padLeft +
+ "\npadRight: " + n.padRight +
+ "\npadTop: " + n.padTop +
+ "\npadBottom: " + n.padBottom;
+
+ console.debug(s);
+ }
+
+ console.debug('idToIndex');
+ for (var i in layoutInfo.idToIndex) {
+ console.debug("Id: " + i + "\nIndex: " + layoutInfo.idToIndex[i]);
+ }
+
+ console.debug('Graph Set');
+ var set = layoutInfo.graphSet;
+ for (var i = 0; i < set.length; i ++) {
+ console.debug("Set : " + i + ": " + set[i].toString());
+ }
+
+ var s = 'IndexToGraph';
+ for (var i = 0; i < layoutInfo.indexToGraph.length; i ++) {
+ s += "\nIndex : " + i + " Graph: "+ layoutInfo.indexToGraph[i];
+ }
+ console.debug(s);
+
+ s = 'Layout Edges';
+ for (var i = 0; i < layoutInfo.layoutEdges.length; i++) {
+ var e = layoutInfo.layoutEdges[i];
+ s += "\nEdge Index: " + i + " ID: " + e.id +
+ " SouceID: " + e.sourceId + " TargetId: " + e.targetId +
+ " Ideal Length: " + e.idealLength;
+ }
+ console.debug(s);
+
+ s = "nodeSize: " + layoutInfo.nodeSize;
+ s += "\nedgeSize: " + layoutInfo.edgeSize;
+ s += "\ntemperature: " + layoutInfo.temperature;
+ console.debug(s);
+
+ return;
+ };
+
+
+ /**
+ * @brief : Randomizes the position of all nodes
+ */
+ var randomizePositions = function(layoutInfo, cy) {
+ var width = layoutInfo.clientWidth;
+ var height = layoutInfo.clientHeight;
+
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var n = layoutInfo.layoutNodes[i];
+ // No need to randomize compound nodes
+ if (true || 0 === n.children.length) {
+ n.positionX = Math.random() * width;
+ n.positionY = Math.random() * height;
+ }
+ }
+ };
+
+
+ /**
+ * @brief : Updates the positions of nodes in the network
+ * @arg layoutInfo : LayoutInfo object
+ * @arg cy : Cytoscape object
+ * @arg options : Layout options
+ */
+ var refreshPositions = function(layoutInfo, cy, options) {
+ var s = 'Refreshing positions';
+ logDebug(s);
+
+ var layout = layoutInfo.layout;
+ var nodes = options.eles.nodes();
+ var bb = layoutInfo.boundingBox;
+ var coseBB = { x1: Infinity, x2: -Infinity, y1: Infinity, y2: -Infinity };
+
+ if( options.boundingBox ){
+ nodes.forEach(function( node ){
+ var lnode = layoutInfo.layoutNodes[layoutInfo.idToIndex[node.data('id')]];
+
+ coseBB.x1 = Math.min( coseBB.x1, lnode.positionX );
+ coseBB.x2 = Math.max( coseBB.x2, lnode.positionX );
+
+ coseBB.y1 = Math.min( coseBB.y1, lnode.positionY );
+ coseBB.y2 = Math.max( coseBB.y2, lnode.positionY );
+ });
+
+ coseBB.w = coseBB.x2 - coseBB.x1;
+ coseBB.h = coseBB.y2 - coseBB.y1;
+ }
+
+ nodes.positions(function(i, ele) {
+ var lnode = layoutInfo.layoutNodes[layoutInfo.idToIndex[ele.data('id')]];
+ s = "Node: " + lnode.id + ". Refreshed position: (" +
+ lnode.positionX + ", " + lnode.positionY + ").";
+ logDebug(s);
+
+ if( options.boundingBox ){ // then add extra bounding box constraint
+ var pctX = (lnode.positionX - coseBB.x1) / coseBB.w;
+ var pctY = (lnode.positionY - coseBB.y1) / coseBB.h;
+
+ return {
+ x: bb.x1 + pctX * bb.w,
+ y: bb.y1 + pctY * bb.h
+ };
+ } else {
+ return {
+ x: lnode.positionX,
+ y: lnode.positionY
+ };
+ }
+ });
+
+ // Trigger layoutReady only on first call
+ if (true !== layoutInfo.ready) {
+ s = 'Triggering layoutready';
+ logDebug(s);
+ layoutInfo.ready = true;
+ layout.one('layoutready', options.ready);
+ layout.trigger({ type: 'layoutready', layout: this });
+ }
+ };
+
+
+ /**
+ * @brief : Performs one iteration of the physical simulation
+ * @arg layoutInfo : LayoutInfo object already initialized
+ * @arg cy : Cytoscape object
+ * @arg options : Layout options
+ */
+ var step = function(layoutInfo, cy, options, step) {
+ var s = "\n\n###############################";
+ s += "\nSTEP: " + step;
+ s += "\n###############################\n";
+ logDebug(s);
+
+ // Calculate node repulsions
+ calculateNodeForces(layoutInfo, cy, options);
+ // Calculate edge forces
+ calculateEdgeForces(layoutInfo, cy, options);
+ // Calculate gravity forces
+ calculateGravityForces(layoutInfo, cy, options);
+ // Propagate forces from parent to child
+ propagateForces(layoutInfo, cy, options);
+ // Update positions based on calculated forces
+ updatePositions(layoutInfo, cy, options);
+ };
+
+
+ /**
+ * @brief : Computes the node repulsion forces
+ */
+ var calculateNodeForces = function(layoutInfo, cy, options) {
+ // Go through each of the graphs in graphSet
+ // Nodes only repel each other if they belong to the same graph
+ var s = 'calculateNodeForces';
+ logDebug(s);
+ for (var i = 0; i < layoutInfo.graphSet.length; i ++) {
+ var graph = layoutInfo.graphSet[i];
+ var numNodes = graph.length;
+
+ s = "Set: " + graph.toString();
+ logDebug(s);
+
+ // Now get all the pairs of nodes
+ // Only get each pair once, (A, B) = (B, A)
+ for (var j = 0; j < numNodes; j++) {
+ var node1 = layoutInfo.layoutNodes[layoutInfo.idToIndex[graph[j]]];
+ for (var k = j + 1; k < numNodes; k++) {
+ var node2 = layoutInfo.layoutNodes[layoutInfo.idToIndex[graph[k]]];
+ nodeRepulsion(node1, node2, layoutInfo, cy, options);
+ }
+ }
+ }
+ };
+
+
+ /**
+ * @brief : Compute the node repulsion forces between a pair of nodes
+ */
+ var nodeRepulsion = function(node1, node2, layoutInfo, cy, options) {
+ var s = "Node repulsion. Node1: " + node1.id + " Node2: " + node2.id;
+
+ // Get direction of line connecting both node centers
+ var directionX = node2.positionX - node1.positionX;
+ var directionY = node2.positionY - node1.positionY;
+ s += "\ndirectionX: " + directionX + ", directionY: " + directionY;
+
+ // If both centers are the same, apply a random force
+ if (0 === directionX && 0 === directionY) {
+ s += "\nNodes have the same position.";
+ return; // TODO
+ }
+
+ var overlap = nodesOverlap(node1, node2, directionX, directionY);
+
+ if (overlap > 0) {
+ s += "\nNodes DO overlap.";
+ s += "\nOverlap: " + overlap;
+ // If nodes overlap, repulsion force is proportional
+ // to the overlap
+ var force = options.nodeOverlap * overlap;
+
+ // Compute the module and components of the force vector
+ var distance = Math.sqrt(directionX * directionX + directionY * directionY);
+ s += "\nDistance: " + distance;
+ var forceX = force * directionX / distance;
+ var forceY = force * directionY / distance;
+
+ } else {
+ s += "\nNodes do NOT overlap.";
+ // If there's no overlap, force is inversely proportional
+ // to squared distance
+
+ // Get clipping points for both nodes
+ var point1 = findClippingPoint(node1, directionX, directionY);
+ var point2 = findClippingPoint(node2, -1 * directionX, -1 * directionY);
+
+ // Use clipping points to compute distance
+ var distanceX = point2.x - point1.x;
+ var distanceY = point2.y - point1.y;
+ var distanceSqr = distanceX * distanceX + distanceY * distanceY;
+ var distance = Math.sqrt(distanceSqr);
+ s += "\nDistance: " + distance;
+
+ // Compute the module and components of the force vector
+ var force = options.nodeRepulsion / distanceSqr;
+ var forceX = force * distanceX / distance;
+ var forceY = force * distanceY / distance;
+ }
+
+ // Apply force
+ node1.offsetX -= forceX;
+ node1.offsetY -= forceY;
+ node2.offsetX += forceX;
+ node2.offsetY += forceY;
+
+ s += "\nForceX: " + forceX + " ForceY: " + forceY;
+ logDebug(s);
+
+ return;
+ };
+
+
+ /**
+ * @brief : Finds the point in which an edge (direction dX, dY) intersects
+ * the rectangular bounding box of it's source/target node
+ */
+ var findClippingPoint = function(node, dX, dY) {
+
+ // Shorcuts
+ var X = node.positionX;
+ var Y = node.positionY;
+ var H = node.height;
+ var W = node.width;
+ var dirSlope = dY / dX;
+ var nodeSlope = H / W;
+
+ var s = 'Computing clipping point of node ' + node.id +
+ " . Height: " + H + ", Width: " + W +
+ "\nDirection " + dX + ", " + dY;
+
+ // Compute intersection
+ var res = {};
+ do {
+ // Case: Vertical direction (up)
+ if (0 === dX && 0 < dY) {
+ res.x = X;
+ s += "\nUp direction";
+ res.y = Y + H / 2;
+ break;
+ }
+
+ // Case: Vertical direction (down)
+ if (0 === dX && 0 > dY) {
+ res.x = X;
+ res.y = Y + H / 2;
+ s += "\nDown direction";
+ break;
+ }
+
+ // Case: Intersects the right border
+ if (0 < dX &&
+ -1 * nodeSlope <= dirSlope &&
+ dirSlope <= nodeSlope) {
+ res.x = X + W / 2;
+ res.y = Y + (W * dY / 2 / dX);
+ s += "\nRightborder";
+ break;
+ }
+
+ // Case: Intersects the left border
+ if (0 > dX &&
+ -1 * nodeSlope <= dirSlope &&
+ dirSlope <= nodeSlope) {
+ res.x = X - W / 2;
+ res.y = Y - (W * dY / 2 / dX);
+ s += "\nLeftborder";
+ break;
+ }
+
+ // Case: Intersects the top border
+ if (0 < dY &&
+ ( dirSlope <= -1 * nodeSlope ||
+ dirSlope >= nodeSlope )) {
+ res.x = X + (H * dX / 2 / dY);
+ res.y = Y + H / 2;
+ s += "\nTop border";
+ break;
+ }
+
+ // Case: Intersects the bottom border
+ if (0 > dY &&
+ ( dirSlope <= -1 * nodeSlope ||
+ dirSlope >= nodeSlope )) {
+ res.x = X - (H * dX / 2 / dY);
+ res.y = Y - H / 2;
+ s += "\nBottom border";
+ break;
+ }
+
+ } while (false);
+
+ s += "\nClipping point found at " + res.x + ", " + res.y;
+ logDebug(s);
+ return res;
+ };
+
+
+ /**
+ * @brief : Determines whether two nodes overlap or not
+ * @return : Amount of overlapping (0 => no overlap)
+ */
+ var nodesOverlap = function(node1, node2, dX, dY) {
+
+ if (dX > 0) {
+ var overlapX = node1.maxX - node2.minX;
+ } else {
+ var overlapX = node2.maxX - node1.minX;
+ }
+
+ if (dY > 0) {
+ var overlapY = node1.maxY - node2.minY;
+ } else {
+ var overlapY = node2.maxY - node1.minY;
+ }
+
+ if (overlapX >= 0 && overlapY >= 0) {
+ return Math.sqrt(overlapX * overlapX + overlapY * overlapY);
+ } else {
+ return 0;
+ }
+ };
+
+
+ /**
+ * @brief : Calculates all edge forces
+ */
+ var calculateEdgeForces = function(layoutInfo, cy, options) {
+ // Iterate over all edges
+ for (var i = 0; i < layoutInfo.edgeSize; i++) {
+ // Get edge, source & target nodes
+ var edge = layoutInfo.layoutEdges[i];
+ var sourceIx = layoutInfo.idToIndex[edge.sourceId];
+ var source = layoutInfo.layoutNodes[sourceIx];
+ var targetIx = layoutInfo.idToIndex[edge.targetId];
+ var target = layoutInfo.layoutNodes[targetIx];
+
+ // Get direction of line connecting both node centers
+ var directionX = target.positionX - source.positionX;
+ var directionY = target.positionY - source.positionY;
+
+ // If both centers are the same, do nothing.
+ // A random force has already been applied as node repulsion
+ if (0 === directionX && 0 === directionY) {
+ return;
+ }
+
+ // Get clipping points for both nodes
+ var point1 = findClippingPoint(source, directionX, directionY);
+ var point2 = findClippingPoint(target, -1 * directionX, -1 * directionY);
+
+
+ var lx = point2.x - point1.x;
+ var ly = point2.y - point1.y;
+ var l = Math.sqrt(lx * lx + ly * ly);
+
+ var force = Math.pow(edge.idealLength - l, 2) / options.edgeElasticity;
+
+ if (0 !== l) {
+ var forceX = force * lx / l;
+ var forceY = force * ly / l;
+ } else {
+ var forceX = 0;
+ var forceY = 0;
+ }
+
+ // Add this force to target and source nodes
+ source.offsetX += forceX;
+ source.offsetY += forceY;
+ target.offsetX -= forceX;
+ target.offsetY -= forceY;
+
+ var s = 'Edge force between nodes ' + source.id + ' and ' + target.id;
+ s += "\nDistance: " + l + " Force: (" + forceX + ", " + forceY + ")";
+ logDebug(s);
+ }
+ };
+
+
+ /**
+ * @brief : Computes gravity forces for all nodes
+ */
+ var calculateGravityForces = function(layoutInfo, cy, options) {
+ var s = 'calculateGravityForces';
+ logDebug(s);
+ for (var i = 0; i < layoutInfo.graphSet.length; i ++) {
+ var graph = layoutInfo.graphSet[i];
+ var numNodes = graph.length;
+
+ s = "Set: " + graph.toString();
+ logDebug(s);
+
+ // Compute graph center
+ if (0 === i) {
+ var centerX = layoutInfo.clientHeight / 2;
+ var centerY = layoutInfo.clientWidth / 2;
+ } else {
+ // Get Parent node for this graph, and use its position as center
+ var temp = layoutInfo.layoutNodes[layoutInfo.idToIndex[graph[0]]];
+ var parent = layoutInfo.layoutNodes[layoutInfo.idToIndex[temp.parentId]];
+ var centerX = parent.positionX;
+ var centerY = parent.positionY;
+ }
+ s = "Center found at: " + centerX + ", " + centerY;
+ logDebug(s);
+
+ // Apply force to all nodes in graph
+ for (var j = 0; j < numNodes; j++) {
+ var node = layoutInfo.layoutNodes[layoutInfo.idToIndex[graph[j]]];
+ s = "Node: " + node.id;
+ var dx = centerX - node.positionX;
+ var dy = centerY - node.positionY;
+ var d = Math.sqrt(dx * dx + dy * dy);
+ if (d > 1.0) { // TODO: Use global variable for distance threshold
+ var fx = options.gravity * dx / d;
+ var fy = options.gravity * dy / d;
+ node.offsetX += fx;
+ node.offsetY += fy;
+ s += ": Applied force: " + fx + ", " + fy;
+ } else {
+ s += ": skypped since it's too close to center";
+ }
+ logDebug(s);
+ }
+ }
+ };
+
+
+ /**
+ * @brief : This function propagates the existing offsets from
+ * parent nodes to its descendents.
+ * @arg layoutInfo : layoutInfo Object
+ * @arg cy : cytoscape Object
+ * @arg options : Layout options
+ */
+ var propagateForces = function(layoutInfo, cy, options) {
+ // Inline implementation of a queue, used for traversing the graph in BFS order
+ var queue = [];
+ var start = 0; // Points to the start the queue
+ var end = -1; // Points to the end of the queue
+
+ logDebug('propagateForces');
+
+ // Start by visiting the nodes in the root graph
+ queue.push.apply(queue, layoutInfo.graphSet[0]);
+ end += layoutInfo.graphSet[0].length;
+
+ // Traverse the graph, level by level,
+ while (start <= end) {
+ // Get the node to visit and remove it from queue
+ var nodeId = queue[start++];
+ var nodeIndex = layoutInfo.idToIndex[nodeId];
+ var node = layoutInfo.layoutNodes[nodeIndex];
+ var children = node.children;
+
+ // We only need to process the node if it's compound
+ if (0 < children.length) {
+ var offX = node.offsetX;
+ var offY = node.offsetY;
+
+ var s = "Propagating offset from parent node : " + node.id +
+ ". OffsetX: " + offX + ". OffsetY: " + offY;
+ s += "\n Children: " + children.toString();
+ logDebug(s);
+
+ for (var i = 0; i < children.length; i++) {
+ var childNode = layoutInfo.layoutNodes[layoutInfo.idToIndex[children[i]]];
+ // Propagate offset
+ childNode.offsetX += offX;
+ childNode.offsetY += offY;
+ // Add children to queue to be visited
+ queue[++end] = children[i];
+ }
+
+ // Reset parent offsets
+ node.offsetX = 0;
+ node.offsetY = 0;
+ }
+
+ }
+ };
+
+
+ /**
+ * @brief : Updates the layout model positions, based on
+ * the accumulated forces
+ */
+ var updatePositions = function(layoutInfo, cy, options) {
+ var s = 'Updating positions';
+ logDebug(s);
+
+ // Reset boundaries for compound nodes
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var n = layoutInfo.layoutNodes[i];
+ if (0 < n.children.length) {
+ logDebug("Resetting boundaries of compound node: " + n.id);
+ n.maxX = undefined;
+ n.minX = undefined;
+ n.maxY = undefined;
+ n.minY = undefined;
+ }
+ }
+
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var n = layoutInfo.layoutNodes[i];
+ if (0 < n.children.length) {
+ // No need to set compound node position
+ logDebug("Skipping position update of node: " + n.id);
+ continue;
+ }
+ s = "Node: " + n.id + " Previous position: (" +
+ n.positionX + ", " + n.positionY + ").";
+
+ // Limit displacement in order to improve stability
+ var tempForce = limitForce(n.offsetX, n.offsetY, layoutInfo.temperature);
+ n.positionX += tempForce.x;
+ n.positionY += tempForce.y;
+ n.offsetX = 0;
+ n.offsetY = 0;
+ n.minX = n.positionX - n.width;
+ n.maxX = n.positionX + n.width;
+ n.minY = n.positionY - n.height;
+ n.maxY = n.positionY + n.height;
+ s += " New Position: (" + n.positionX + ", " + n.positionY + ").";
+ logDebug(s);
+
+ // Update ancestry boudaries
+ updateAncestryBoundaries(n, layoutInfo);
+ }
+
+ // Update size, position of compund nodes
+ for (var i = 0; i < layoutInfo.nodeSize; i++) {
+ var n = layoutInfo.layoutNodes[i];
+ if (0 < n.children.length) {
+ n.positionX = (n.maxX + n.minX) / 2;
+ n.positionY = (n.maxY + n.minY) / 2;
+ n.width = n.maxX - n.minX;
+ n.height = n.maxY - n.minY;
+ s = "Updating position, size of compound node " + n.id;
+ s += "\nPositionX: " + n.positionX + ", PositionY: " + n.positionY;
+ s += "\nWidth: " + n.width + ", Height: " + n.height;
+ logDebug(s);
+ }
+ }
+ };
+
+
+ /**
+ * @brief : Limits a force (forceX, forceY) to be not
+ * greater (in modulo) than max.
+ 8 Preserves force direction.
+ */
+ var limitForce = function(forceX, forceY, max) {
+ var s = "Limiting force: (" + forceX + ", " + forceY + "). Max: " + max;
+ var force = Math.sqrt(forceX * forceX + forceY * forceY);
+
+ if (force > max) {
+ var res = {
+ x : max * forceX / force,
+ y : max * forceY / force
+ };
+
+ } else {
+ var res = {
+ x : forceX,
+ y : forceY
+ };
+ }
+
+ s += ".\nResult: (" + res.x + ", " + res.y + ")";
+ logDebug(s);
+
+ return res;
+ };
+
+
+ /**
+ * @brief : Function used for keeping track of compound node
+ * sizes, since they should bound all their subnodes.
+ */
+ var updateAncestryBoundaries = function(node, layoutInfo) {
+ var s = "Propagating new position/size of node " + node.id;
+ var parentId = node.parentId;
+ if (null == parentId) {
+ // If there's no parent, we are done
+ s += ". No parent node.";
+ logDebug(s);
+ return;
+ }
+
+ // Get Parent Node
+ var p = layoutInfo.layoutNodes[layoutInfo.idToIndex[parentId]];
+ var flag = false;
+
+ // MaxX
+ if (null == p.maxX || node.maxX + p.padRight > p.maxX) {
+ p.maxX = node.maxX + p.padRight;
+ flag = true;
+ s += "\nNew maxX for parent node " + p.id + ": " + p.maxX;
+ }
+
+ // MinX
+ if (null == p.minX || node.minX - p.padLeft < p.minX) {
+ p.minX = node.minX - p.padLeft;
+ flag = true;
+ s += "\nNew minX for parent node " + p.id + ": " + p.minX;
+ }
+
+ // MaxY
+ if (null == p.maxY || node.maxY + p.padBottom > p.maxY) {
+ p.maxY = node.maxY + p.padBottom;
+ flag = true;
+ s += "\nNew maxY for parent node " + p.id + ": " + p.maxY;
+ }
+
+ // MinY
+ if (null == p.minY || node.minY - p.padTop < p.minY) {
+ p.minY = node.minY - p.padTop;
+ flag = true;
+ s += "\nNew minY for parent node " + p.id + ": " + p.minY;
+ }
+
+ // If updated boundaries, propagate changes upward
+ if (flag) {
+ logDebug(s);
+ return updateAncestryBoundaries(p, layoutInfo);
+ }
+
+ s += ". No changes in boundaries/position of parent node " + p.id;
+ logDebug(s);
+ return;
+ };
+
+
+ /**
+ * @brief : Logs a debug message in JS console, if DEBUG is ON
+ */
+ var logDebug = function(text) {
+ if (DEBUG) {
+ console.debug(text);
+ }
+ };
+
+
+ // register the layout
+ $$('layout', 'cose', CoseLayout);
+
+})(cytoscape);
+;(function($$){ 'use strict';
+
+ // default layout options
+ var defaults = {
+ // dagre algo options, uses default value on undefined
+ nodeSep: undefined, // the separation between adjacent nodes in the same rank
+ edgeSep: undefined, // the separation between adjacent edges in the same rank
+ rankSep: undefined, // the separation between adjacent nodes in the same rank
+ rankDir: undefined, // 'TB' for top to bottom flow, 'LR' for left to right
+ minLen: function( edge ){ return 1; }, // number of ranks to keep between the source and target of the edge
+
+ // general layout options
+ fit: true, // whether to fit to viewport
+ padding: 30, // fit padding
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ ready: function(){}, // on layoutready
+ stop: function(){} // on layoutstop
+ };
+
+ // constructor
+ // options : object containing layout options
+ function DagreLayout( options ){
+ this.options = $$.util.extend(true, {}, defaults, options);
+ }
+
+ // runs the layout
+ DagreLayout.prototype.run = function(){
+ var options = this.options;
+ var layout = this;
+
+ $$.util.require('dagre', function(dagre){
+
+ var cy = options.cy; // cy is automatically populated for us in the constructor
+ var eles = options.eles;
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ var g = new dagre.Digraph();
+
+ // add nodes to dagre
+ var nodes = eles.nodes().not(':parent');
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+
+ g.addNode( node.id(), {
+ width: node.width(),
+ height: node.height()
+ } );
+ }
+
+ // add edges to dagre
+ var edges = eles.edges();
+ for( var i = 0; i < edges.length; i++ ){
+ var edge = edges[i];
+
+ g.addEdge( edge.id(), edge.source().id(), edge.target().id(), {
+ minLen: $$.is.fn(options.minLen) ? options.minLen.apply( edge, [ edge ] ) : options.minLen
+ } );
+ }
+
+ var d = dagre.layout();
+
+ if( options.nodeSep ){
+ d.nodeSep( options.nodeSep );
+ }
+
+ if( options.edgeSep ){
+ d.edgeSep( options.edgeSep );
+ }
+
+ if( options.rankSep ){
+ d.rankSep( options.rankSep );
+ }
+
+ if( options.rankDir ){
+ d.rankDir( options.rankDir );
+ }
+
+ d = d.run(g);
+
+ d.eachNode(function(id, n) {
+ cy.getElementById(id).scratch().dagre = n;
+ });
+
+ var dagreBB;
+
+ if( options.boundingBox ){
+ dagreBB = { x1: Infinity, x2: -Infinity, y1: Infinity, y2: -Infinity };
+ nodes.forEach(function( node ){
+ var dModel = node.scratch().dagre;
+
+ dagreBB.x1 = Math.min( dagreBB.x1, dModel.x );
+ dagreBB.x2 = Math.max( dagreBB.x2, dModel.x );
+
+ dagreBB.y1 = Math.min( dagreBB.y1, dModel.y );
+ dagreBB.y2 = Math.max( dagreBB.y2, dModel.y );
+ });
+
+ dagreBB.w = dagreBB.x2 - dagreBB.x1;
+ dagreBB.h = dagreBB.y2 - dagreBB.y1;
+ } else {
+ dagreBB = bb;
+ }
+
+ var constrainPos = function( p ){
+ if( options.boundingBox ){
+ var xPct = (p.x - dagreBB.x1) / dagreBB.w;
+ var yPct = (p.y - dagreBB.y1) / dagreBB.h;
+
+ return {
+ x: bb.x1 + xPct * bb.w,
+ y: bb.y1 + yPct * bb.h
+ };
+ } else {
+ return p;
+ }
+ };
+
+ nodes.layoutPositions(layout, options, function(){
+ var dModel = this.scratch().dagre;
+
+ return constrainPos({
+ x: dModel.x,
+ y: dModel.y
+ });
+ });
+
+ }); // require
+
+ return this; // chaining
+ };
+
+ // register the layout
+ $$('layout', 'dagre', DagreLayout);
+
+})(cytoscape);
+;(function($$){ 'use strict';
+
+ var defaults = {
+ fit: true, // whether to fit the viewport to the graph
+ padding: 30, // padding used on fit
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ avoidOverlap: true, // prevents node overlap, may overflow boundingBox if not enough space
+ rows: undefined, // force num of rows in the grid
+ columns: undefined, // force num of cols in the grid
+ position: function( node ){}, // returns { row, col } for element
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ ready: undefined, // callback on layoutready
+ stop: undefined // callback on layoutstop
+ };
+
+ function GridLayout( options ){
+ this.options = $$.util.extend({}, defaults, options);
+ }
+
+ GridLayout.prototype.run = function(){
+ var params = this.options;
+ var options = params;
+
+ var cy = params.cy;
+ var eles = options.eles;
+ var nodes = eles.nodes().not(':parent');
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ if( bb.h === 0 || bb.w === 0){
+ nodes.layoutPositions(this, options, function(){
+ return { x: bb.x1, y: bb.y1 };
+ });
+
+ } else {
+
+ // width/height * splits^2 = cells where splits is number of times to split width
+ var cells = nodes.size();
+ var splits = Math.sqrt( cells * bb.h/bb.w );
+ var rows = Math.round( splits );
+ var cols = Math.round( bb.w/bb.h * splits );
+
+ var small = function(val){
+ if( val == null ){
+ return Math.min(rows, cols);
+ } else {
+ var min = Math.min(rows, cols);
+ if( min == rows ){
+ rows = val;
+ } else {
+ cols = val;
+ }
+ }
+ };
+
+ var large = function(val){
+ if( val == null ){
+ return Math.max(rows, cols);
+ } else {
+ var max = Math.max(rows, cols);
+ if( max == rows ){
+ rows = val;
+ } else {
+ cols = val;
+ }
+ }
+ };
+
+ // if rows or columns were set in options, use those values
+ if( options.rows != null && options.columns != null ){
+ rows = options.rows;
+ cols = options.columns;
+ } else if( options.rows != null && options.columns == null ){
+ rows = options.rows;
+ cols = Math.ceil( cells / rows );
+ } else if( options.rows == null && options.columns != null ){
+ cols = options.columns;
+ rows = Math.ceil( cells / cols );
+ }
+
+ // otherwise use the automatic values and adjust accordingly
+
+ // if rounding was up, see if we can reduce rows or columns
+ else if( cols * rows > cells ){
+ var sm = small();
+ var lg = large();
+
+ // reducing the small side takes away the most cells, so try it first
+ if( (sm - 1) * lg >= cells ){
+ small(sm - 1);
+ } else if( (lg - 1) * sm >= cells ){
+ large(lg - 1);
+ }
+ } else {
+
+ // if rounding was too low, add rows or columns
+ while( cols * rows < cells ){
+ var sm = small();
+ var lg = large();
+
+ // try to add to larger side first (adds less in multiplication)
+ if( (lg + 1) * sm >= cells ){
+ large(lg + 1);
+ } else {
+ small(sm + 1);
+ }
+ }
+ }
+
+ var cellWidth = bb.w / cols;
+ var cellHeight = bb.h / rows;
+
+ if( options.avoidOverlap ){
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+ var w = node.outerWidth();
+ var h = node.outerHeight();
+
+ cellWidth = Math.max( cellWidth, w );
+ cellHeight = Math.max( cellHeight, h );
+ }
+ }
+
+ var cellUsed = {}; // e.g. 'c-0-2' => true
+
+ var used = function(row, col){
+ return cellUsed['c-' + row + '-' + col] ? true : false;
+ };
+
+ var use = function(row, col){
+ cellUsed['c-' + row + '-' + col] = true;
+ };
+
+ // to keep track of current cell position
+ var row = 0;
+ var col = 0;
+ var moveToNextCell = function(){
+ col++;
+ if( col >= cols ){
+ col = 0;
+ row++;
+ }
+ };
+
+ // get a cache of all the manual positions
+ var id2manPos = {};
+ for( var i = 0; i < nodes.length; i++ ){
+ var node = nodes[i];
+ var rcPos = options.position( node );
+
+ if( rcPos && (rcPos.row !== undefined || rcPos.col !== undefined) ){ // must have at least row or col def'd
+ var pos = {
+ row: rcPos.row,
+ col: rcPos.col
+ };
+
+ if( pos.col === undefined ){ // find unused col
+ pos.col = 0;
+
+ while( used(pos.row, pos.col) ){
+ pos.col++;
+ }
+ } else if( pos.row === undefined ){ // find unused row
+ pos.row = 0;
+
+ while( used(pos.row, pos.col) ){
+ pos.row++;
+ }
+ }
+
+ id2manPos[ node.id() ] = pos;
+ use( pos.row, pos.col );
+ }
+ }
+
+ var getPos = function(i, element){
+ var x, y;
+
+ if( element.locked() || element.isFullAutoParent() ){
+ return false;
+ }
+
+ // see if we have a manual position set
+ var rcPos = id2manPos[ element.id() ];
+ if( rcPos ){
+ x = rcPos.col * cellWidth + cellWidth/2 + bb.x1;
+ y = rcPos.row * cellHeight + cellHeight/2 + bb.y1;
+
+ } else { // otherwise set automatically
+
+ while( used(row, col) ){
+ moveToNextCell();
+ }
+
+ x = col * cellWidth + cellWidth/2 + bb.x1;
+ y = row * cellHeight + cellHeight/2 + bb.y1;
+ use( row, col );
+
+ moveToNextCell();
+ }
+
+ return { x: x, y: y };
+
+ };
+
+ nodes.layoutPositions( this, options, getPos );
+ }
+
+ return this; // chaining
+
+ };
+
+ $$('layout', 'grid', GridLayout);
+
+})( cytoscape );
+
+;(function($$){ 'use strict';
+
+ // default layout options
+ var defaults = {
+ ready: function(){}, // on layoutready
+ stop: function(){} // on layoutstop
+ };
+
+ // constructor
+ // options : object containing layout options
+ function NullLayout( options ){
+ this.options = $$.util.extend(true, {}, defaults, options);
+ }
+
+ // runs the layout
+ NullLayout.prototype.run = function(){
+ var options = this.options;
+ var eles = options.eles; // elements to consider in the layout
+ var layout = this;
+
+ // cy is automatically populated for us in the constructor
+ var cy = options.cy; // jshint ignore:line
+
+ layout.trigger('layoutstart');
+
+ // puts all nodes at (0, 0)
+ eles.nodes().positions(function(){
+ return {
+ x: 0,
+ y: 0
+ };
+ });
+
+ // trigger layoutready when each node has had its position set at least once
+ layout.one('layoutready', options.ready);
+ layout.trigger('layoutready');
+
+ // trigger layoutstop when the layout stops (e.g. finishes)
+ layout.one('layoutstop', options.stop);
+ layout.trigger('layoutstop');
+
+ return this; // chaining
+ };
+
+ // called on continuous layouts to stop them before they finish
+ NullLayout.prototype.stop = function(){
+ return this; // chaining
+ };
+
+ // register the layout
+ $$('layout', 'null', NullLayout);
+
+})(cytoscape);
+;(function($$){ 'use strict';
+
+ var defaults = {
+ positions: undefined, // map of (node id) => (position obj); or function(node){ return somPos; }
+ zoom: undefined, // the zoom level to set (prob want fit = false if set)
+ pan: undefined, // the pan level to set (prob want fit = false if set)
+ fit: true, // whether to fit to viewport
+ padding: 30, // padding on fit
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ ready: undefined, // callback on layoutready
+ stop: undefined // callback on layoutstop
+ };
+
+ function PresetLayout( options ){
+ this.options = $$.util.extend(true, {}, defaults, options);
+ }
+
+ PresetLayout.prototype.run = function(){
+ var options = this.options;
+ var eles = options.eles;
+
+ var nodes = eles.nodes();
+ var posIsFn = $$.is.fn( options.positions );
+
+ function getPosition(node){
+ if( options.positions == null ){
+ return null;
+ }
+
+ if( posIsFn ){
+ return options.positions.apply( node, [ node ] );
+ }
+
+ var pos = options.positions[node._private.data.id];
+
+ if( pos == null ){
+ return null;
+ }
+
+ return pos;
+ }
+
+ nodes.layoutPositions(this, options, function(i, node){
+ var position = getPosition(node);
+
+ if( node.locked() || position == null ){
+ return false;
+ }
+
+ return position;
+ });
+
+ return this; // chaining
+ };
+
+ $$('layout', 'preset', PresetLayout);
+
+})(cytoscape);
+
+;(function($$){ 'use strict';
+
+ var defaults = {
+ fit: true, // whether to fit to viewport
+ padding: 30, // fit padding
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ animate: false, // whether to transition the node positions
+ animationDuration: 500, // duration of animation in ms if enabled
+ ready: undefined, // callback on layoutready
+ stop: undefined // callback on layoutstop
+ };
+
+ function RandomLayout( options ){
+ this.options = $$.util.extend(true, {}, defaults, options);
+ }
+
+ RandomLayout.prototype.run = function(){
+ var options = this.options;
+ var cy = options.cy;
+ var eles = options.eles;
+ var nodes = eles.nodes().not(':parent');
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ var getPos = function( i, node ){
+ return {
+ x: bb.x1 + Math.round( Math.random() * bb.w ),
+ y: bb.y1 + Math.round( Math.random() * bb.h )
+ };
+ };
+
+ nodes.layoutPositions( this, options, getPos );
+
+ return this; // chaining
+ };
+
+ // register the layout
+ $$(
+ 'layout', // we're registering a layout
+ 'random', // the layout name
+ RandomLayout // the layout prototype
+ );
+
+})(cytoscape);
+
+;(function($$){ 'use strict';
+
+ var defaults = {
+ animate: true, // whether to show the layout as it's running
+ maxSimulationTime: 4000, // max length in ms to run the layout
+ ungrabifyWhileSimulating: false, // so you can't drag nodes during layout
+ fit: true, // whether to fit the viewport to the graph
+ padding: 30, // padding on fit
+ boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
+ random: false, // whether to use random initial positions
+ infinite: false, // overrides all other options for a forces-all-the-time mode
+ ready: undefined, // callback on layoutready
+ stop: undefined, // callback on layoutstop
+
+ // springy forces
+ stiffness: 400,
+ repulsion: 400,
+ damping: 0.5
+ };
+
+ function SpringyLayout( options ){
+ this.options = $$.util.extend(true, {}, defaults, options);
+ }
+
+ SpringyLayout.prototype.run = function(){
+ var layout = this;
+ var self = this;
+ var options = this.options;
+
+ $$.util.require('Springy', function(Springy){
+
+ var simUpdatingPos = false;
+
+ var cy = options.cy;
+ layout.trigger({ type: 'layoutstart', layout: layout });
+
+ var eles = options.eles;
+ var nodes = eles.nodes().not(':parent');
+ var edges = eles.edges();
+
+ var bb = $$.util.makeBoundingBox( options.boundingBox ? options.boundingBox : {
+ x1: 0, y1: 0, w: cy.width(), h: cy.height()
+ } );
+
+ // make a new graph
+ var graph = new Springy.Graph();
+
+ // make some nodes
+ nodes.each(function(i, node){
+ node.scratch('springy', {
+ model: graph.newNode({
+ element: node
+ })
+ });
+ });
+
+ // connect them with edges
+ edges.each(function(i, edge){
+ var fdSrc = edge.source().scratch('springy').model;
+ var fdTgt = edge.target().scratch('springy').model;
+
+ edge.scratch('springy', {
+ model: graph.newEdge(fdSrc, fdTgt, {
+ element: edge
+ })
+ });
+ });
+
+ var sim = window.sim = new Springy.Layout.ForceDirected(graph, options.stiffness, options.repulsion, options.damping);
+
+ if( options.infinite ){
+ sim.minEnergyThreshold = -Infinity;
+ }
+
+ var currentBB = sim.getBoundingBox();
+ // var targetBB = {bottomleft: new Springy.Vector(-2, -2), topright: new Springy.Vector(2, 2)};
+
+ // convert to/from screen coordinates
+ var toScreen = function(p) {
+ currentBB = sim.getBoundingBox();
+
+ var size = currentBB.topright.subtract(currentBB.bottomleft);
+ var sx = p.subtract(currentBB.bottomleft).divide(size.x).x * bb.w + bb.x1;
+ var sy = p.subtract(currentBB.bottomleft).divide(size.y).y * bb.h + bb.x1;
+
+ return new Springy.Vector(sx, sy);
+ };
+
+ var fromScreen = function(s) {
+ currentBB = sim.getBoundingBox();
+
+ var size = currentBB.topright.subtract(currentBB.bottomleft);
+ var px = ((s.x - bb.x1) / bb.w) * size.x + currentBB.bottomleft.x;
+ var py = ((s.y - bb.y1) / bb.h) * size.y + currentBB.bottomleft.y;
+
+ return new Springy.Vector(px, py);
+ };
+
+ var movedNodes = cy.collection();
+
+ var numNodes = cy.nodes().size();
+ var drawnNodes = 1;
+ var fdRenderer = new Springy.Renderer(sim,
+ function clear() {
+ if( movedNodes.length > 0 && options.animate ){
+ simUpdatingPos = true;
+
+ movedNodes.rtrigger('position');
+
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+
+ movedNodes = cy.collection();
+
+ simUpdatingPos = false;
+ }
+ },
+
+ function drawEdge(edge, p1, p2) {
+ // draw an edge
+ },
+
+ function drawNode(node, p) {
+ var v = toScreen(p);
+ var element = node.data.element;
+
+ if( !element.locked() && !element.grabbed() ){
+ element._private.position = {
+ x: v.x,
+ y: v.y
+ };
+ movedNodes.merge(element);
+ } else {
+ //setLayoutPositionForElement(element);
+ }
+
+ if( drawnNodes == numNodes ){
+ layout.one('layoutready', options.ready);
+ layout.trigger({ type: 'layoutready', layout: layout });
+ }
+
+ drawnNodes++;
+
+ }
+ );
+
+ // set initial node points
+ nodes.each(function(i, ele){
+ if( !options.random ){
+ setLayoutPositionForElement(ele);
+ }
+ });
+
+ // update node positions when dragging
+ var dragHandler;
+ nodes.on('position', dragHandler = function(){
+ if( simUpdatingPos ){ return; }
+
+ setLayoutPositionForElement(this);
+ });
+
+ function setLayoutPositionForElement(element){
+ var fdId = element.scratch('springy').model.id;
+ var fdP = fdRenderer.layout.nodePoints[fdId].p;
+ var pos = element.position();
+ var positionInFd = (pos.x != null && pos.y != null) ? fromScreen(element.position()) : {
+ x: Math.random() * 4 - 2,
+ y: Math.random() * 4 - 2
+ };
+
+ fdP.x = positionInFd.x;
+ fdP.y = positionInFd.y;
+ }
+
+ var grabbableNodes = nodes.filter(":grabbable");
+
+ function start(){
+ // disable grabbing if so set
+ if( options.ungrabifyWhileSimulating ){
+ grabbableNodes.ungrabify();
+ }
+
+ fdRenderer.start();
+ }
+
+ self.stopSystem = function(){
+ graph.filterNodes(function(){
+ return false; // remove all nodes
+ });
+
+ if( options.ungrabifyWhileSimulating ){
+ grabbableNodes.grabify();
+ }
+
+ if( options.fit ){
+ cy.fit( options.padding );
+ }
+
+ nodes.off('drag position', dragHandler);
+
+ layout.one('layoutstop', options.stop);
+ layout.trigger({ type: 'layoutstop', layout: layout });
+
+ self.stopSystem = null;
+ };
+
+ start();
+ if( !options.infinite ){
+ setTimeout(function(){
+ self.stop();
+ }, options.maxSimulationTime);
+ }
+
+ }); // require
+
+ return this; // chaining
+ };
+
+ SpringyLayout.prototype.stop = function(){
+ if( this.stopSystem != null ){
+ this.stopSystem();
+ }
+
+ return this; // chaining
+ };
+
+ $$('layout', 'springy', SpringyLayout);
+
+
+})(cytoscape);
+
+;(function($$){ 'use strict';
+
+ function NullRenderer(options){
+ this.options = options;
+ }
+
+ NullRenderer.prototype.recalculateRenderedStyle = function(){
+ };
+
+ NullRenderer.prototype.notify = function(){
+ // the null renderer does nothing
+ };
+
+ $$('renderer', 'null', NullRenderer);
+
+})( cytoscape );
diff --git a/ajax/libs/cytoscape/2.3.4/cytoscape.min.js b/ajax/libs/cytoscape/2.3.4/cytoscape.min.js
new file mode 100644
index 000000000..2c459a52e
--- /dev/null
+++ b/ajax/libs/cytoscape/2.3.4/cytoscape.min.js
@@ -0,0 +1,24 @@
+/*!
+ * This file is part of Cytoscape.js 2.3.4.
+ *
+ * Cytoscape.js is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * Cytoscape.js is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * Cytoscape.js. If not, see .
+ */
+var cytoscape;!function(e){"use strict";var t=cytoscape=function(){return cytoscape.init.apply(cytoscape,arguments)};t.version="2.3.4",t.init=function(e){return void 0===e&&(e={}),t.is.plainObject(e)?new t.Core(e):t.is.string(e)?t.extension.apply(t.extension,arguments):void 0},t.fn={},"undefined"!=typeof module&&module.exports&&(module.exports=cytoscape),"undefined"!=typeof define&&define.amd&&define("cytoscape",function(){return cytoscape}),e&&(e.cytoscape=cytoscape)}("undefined"==typeof window?null:window),function(e,t){"use strict";e.is={defined:function(e){return null!=e},string:function(e){return null!=e&&"string"==typeof e},fn:function(e){return null!=e&&"function"==typeof e},array:function(e){return Array.isArray?Array.isArray(e):null!=e&&e instanceof Array},plainObject:function(t){return null!=t&&typeof t==typeof{}&&!e.is.array(t)&&t.constructor===Object},number:function(e){return null!=e&&"number"==typeof e&&!isNaN(e)},integer:function(t){return e.is.number(t)&&Math.floor(t)===t},color:function(e){return null!=e&&"string"==typeof e&&""!==$.Color(e).toString()},bool:function(e){return null!=e&&typeof e==typeof!0},elementOrCollection:function(t){return e.is.element(t)||e.is.collection(t)},element:function(t){return t instanceof e.Element&&t._private.single},collection:function(t){return t instanceof e.Collection&&!t._private.single},core:function(t){return t instanceof e.Core},style:function(t){return t instanceof e.Style},stylesheet:function(t){return t instanceof e.Stylesheet},event:function(t){return t instanceof e.Event},emptyString:function(t){return t?e.is.string(t)&&(""===t||t.match(/^\s+$/))?!0:!1:!0},nonemptyString:function(t){return t&&e.is.string(t)&&""!==t&&!t.match(/^\s+$/)?!0:!1},domElement:function(e){return"undefined"==typeof HTMLElement?!1:e instanceof HTMLElement},touch:function(){return t&&("ontouchstart"in t||t.DocumentTouch&&document instanceof DocumentTouch)},boundingBox:function(t){return e.is.plainObject(t)&&e.is.number(t.x1)&&e.is.number(t.x2)&&e.is.number(t.y1)&&e.is.number(t.y2)}}}(cytoscape,"undefined"==typeof window?null:window),function(e,t){"use strict";e.util={extend:function(){var t,i,r,n,a,o,s=arguments[0]||{},l=1,u=arguments.length,c=!1;for("boolean"==typeof s&&(c=s,s=arguments[1]||{},l=2),"object"==typeof s||e.is.fn(s)||(s={}),u===l&&(s=this,--l);u>l;l++)if(null!=(t=arguments[l]))for(i in t)r=s[i],n=t[i],s!==n&&(c&&n&&(e.is.plainObject(n)||(a=e.is.array(n)))?(a?(a=!1,o=r&&e.is.array(r)?r:[]):o=r&&e.is.plainObject(r)?r:{},s[i]=e.util.extend(c,o,n)):void 0!==n&&(s[i]=n));return s},require:function(i,r,n){var a;n=e.util.extend({msgIfNotFound:!0},n);var o=!1,s=function(e){o=!0,r(e)},l=function(e){t&&(a=t[i]),void 0!==a&&s(a),e&&e()},u=function(){o||c(d)},c=function(e){"undefined"!=typeof module&&module.exports&&require&&(a=require(i)),void 0!==a&&s(a),e&&e()},d=function(){o||p(h)},p=function(e){"undefined"!=typeof define&&define.amd&&require&&require([i],function(t){a=t,void 0!==a&&s(a),e&&e()})},h=function(){!o&&n.msgIfNotFound&&e.util.error("Cytoscape.js tried to pull in dependency `"+i+"` but no module (i.e. CommonJS, AMD, or window) was found")};l(u)},requires:function(t,i){for(var r=[],n=[],a=function(){for(var e=0;e=r){a&&clearTimeout(a);var p=c;a=u=c=void 0,p&&(d=e.util.now(),o=t.apply(l,n),u||a||(n=l=null))}else u=setTimeout(g,r)},f=function(){u&&clearTimeout(u),a=u=c=void 0,(h||p!==i)&&(d=e.util.now(),o=t.apply(l,n),u||a||(n=l=null))};return function(){if(n=arguments,s=e.util.now(),l=this,c=h&&(u||!v),p===!1)var r=v&&!u;else{a||v||(d=s);var y=p-(s-d),m=0>=y;m?(a&&(a=clearTimeout(a)),d=s,o=t.apply(l,n)):a||(a=setTimeout(f,y))}return m&&u?u=clearTimeout(u):u||i===p||(u=setTimeout(g,i)),r&&(m=!0,o=t.apply(l,n)),!m||u||a||(n=l=null),o}}},error:function(e){if(!console)throw e;if(console.error)console.error.apply(console,arguments);else{if(!console.log)throw e;console.log.apply(console,arguments)}},clone:function(e){var t={};for(var i in e)e.hasOwnProperty(i)&&(t[i]=e[i]);return t},copy:function(t){return null==t?t:e.is.array(t)?t.slice():e.is.plainObject(t)?e.util.clone(t):t},makeBoundingBox:function(e){if(null!=e.x1&&null!=e.y1){if(null!=e.x2&&null!=e.y2&&e.x2>=e.x1&&e.y2>=e.y1)return{x1:e.x1,y1:e.y1,x2:e.x2,y2:e.y2,w:e.x2-e.x1,h:e.y2-e.y1};if(null!=e.w&&null!=e.h&&e.w>=0&&e.h>=0)return{x1:e.x1,y1:e.y1,x2:e.x1+e.w,y2:e.y1+e.h,w:e.w,h:e.h}}},mapEmpty:function(e){var t=!0;if(null!=e)for(var i in e){t=!1;break}return t},pushMap:function(t){var i=e.util.getMap(t);null==i?e.util.setMap($.extend({},t,{value:[t.value]})):i.push(t.value)},setMap:function(t){for(var i,r=t.map,n=t.keys,a=n.length,o=0;a>o;o++){var i=n[o];e.is.plainObject(i)&&e.util.error("Tried to set map with object key"),oa;a++){var o=r[a];if(e.is.plainObject(o)&&e.util.error("Tried to get map with object key"),i=i[o],null==i)return i}return i},deleteMap:function(t){for(var i=t.map,r=t.keys,n=r.length,a=t.keepChildren,o=0;n>o;o++){var s=r[o];e.is.plainObject(s)&&e.util.error("Tried to delete map with object key");var l=o===t.keys.length-1;if(l)if(a)for(var u in i)a[u]||(i[u]=void 0);else i[s]=void 0;else i=i[s]}},capitalize:function(t){return e.is.emptyString(t)?t:t.charAt(0).toUpperCase()+t.substring(1)},camel2dash:function(e){for(var t=[],i=0;it&&" "===e[i];i--);return e.substring(t,i+1)},hex2tuple:function(e){if((4===e.length||7===e.length)&&"#"===e[0]){var t,i,r,n=4===e.length,a=16;return n?(t=parseInt(e[1]+e[1],a),i=parseInt(e[2]+e[2],a),r=parseInt(e[3]+e[3],a)):(t=parseInt(e[1]+e[2],a),i=parseInt(e[3]+e[4],a),r=parseInt(e[5]+e[6],a)),[t,i,r]}},hsl2tuple:function(t){function i(e,t,i){return 0>i&&(i+=1),i>1&&(i-=1),1/6>i?e+6*(t-e)*i:.5>i?t:2/3>i?e+(t-e)*(2/3-i)*6:e}var r,n,a,o,s,l,u,c,d=new RegExp("^"+e.util.regex.hsla+"$").exec(t);if(d){if(n=parseInt(d[1]),0>n?n=(360- 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t=e.toString(16);return 1===t.length&&(t="0"+t),t}var i=e[0],r=e[1],n=e[2];return"#"+t(i)+t(r)+t(n)},colors:{transparent:[0,0,0,0],aliceblue:[240,248,255],antiquewhite:[250,235,215],aqua:[0,255,255],aquamarine:[127,255,212],azure:[240,255,255],beige:[245,245,220],bisque:[255,228,196],black:[0,0,0],blanchedalmond:[255,235,205],blue:[0,0,255],blueviolet:[138,43,226],brown:[165,42,42],burlywood:[222,184,135],cadetblue:[95,158,160],chartreuse:[127,255,0],chocolate:[210,105,30],coral:[255,127,80],cornflowerblue:[100,149,237],cornsilk:[255,248,220],crimson:[220,20,60],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgoldenrod:[184,134,11],darkgray:[169,169,169],darkgreen:[0,100,0],darkgrey:[169,169,169],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkseagreen:[143,188,143],darkslateblue:[72,61,139],darkslategray:[47,79,79],darkslategrey:[47,79,79],darkturquoise:[0,206,209],darkviolet:[148,0,211],deeppink:[255,20,147],deepskyblue:[0,191,255],dimgray:[105,105,105],dimgrey:[105,105,105],dodgerblue:[30,144,255],firebrick:[178,34,34],floralwhite:[255,250,240],forestgreen:[34,139,34],fuchsia:[255,0,255],gainsboro:[220,220,220],ghostwhite:[248,248,255],gold:[255,215,0],goldenrod:[218,165,32],gray:[128,128,128],grey:[128,128,128],green:[0,128,0],greenyellow:[173,255,47],honeydew:[240,255,240],hotpink:[255,105,180],indianred:[205,92,92],indigo:[75,0,130],ivory:[255,255,240],khaki:[240,230,140],lavender:[230,230,250],lavenderblush:[255,240,245],lawngreen:[124,252,0],lemonchiffon:[255,250,205],lightblue:[173,216,230],lightcoral:[240,128,128],lightcyan:[224,255,255],lightgoldenrodyellow:[250,250,210],lightgray:[211,211,211],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightsalmon:[255,160,122],lightseagreen:[32,178,170],lightskyblue:[135,206,250],lightslategray:[119,136,153],lightslategrey:[119,136,153],lightsteelblue:[176,196,222],lightyellow:[255,255,224],lime:[0,255,0],limegreen:[50,205,50],linen:[250,240,230],magenta:[255,0,255],maroon:[128,0,0],mediumaquamarine:[102,205,170],mediumblue:[0,0,205],mediumorchid:[186,85,211],mediumpurple:[147,112,219],mediumseagreen:[60,179,113],mediumslateblue:[123,104,238],mediumspringgreen:[0,250,154],mediumturquoise:[72,209,204],mediumvioletred:[199,21,133],midnightblue:[25,25,112],mintcream:[245,255,250],mistyrose:[255,228,225],moccasin:[255,228,181],navajowhite:[255,222,173],navy:[0,0,128],oldlace:[253,245,230],olive:[128,128,0],olivedrab:[107,142,35],orange:[255,165,0],orangered:[255,69,0],orchid:[218,112,214],palegoldenrod:[238,232,170],palegreen:[152,251,152],paleturquoise:[175,238,238],palevioletred:[219,112,147],papayawhip:[255,239,213],peachpuff:[255,218,185],peru:[205,133,63],pink:[255,192,203],plum:[221,160,221],powderblue:[176,224,230],purple:[128,0,128],red:[255,0,0],rosybrown:[188,143,143],royalblue:[65,105,225],saddlebrown:[139,69,19],salmon:[250,128,114],sandybrown:[244,164,96],seagreen:[46,139,87],seashell:[255,245,238],sienna:[160,82,45],silver:[192,192,192],skyblue:[135,206,235],slateblue:[106,90,205],slategray:[112,128,144],slategrey:[112,128,144],snow:[255,250,250],springgreen:[0,255,127],steelblue:[70,130,180],tan:[210,180,140],teal:[0,128,128],thistle:[216,191,216],tomato:[255,99,71],turquoise:[64,224,208],violet:[238,130,238],wheat:[245,222,179],white:[255,255,255],whitesmoke:[245,245,245],yellow:[255,255,0],yellowgreen:[154,205,50]}},e.util.regex={},e.util.regex.number="(?:[-]?\\d*\\.\\d+|[-]?\\d+|[-]?\\d*\\.\\d+[eE]\\d+)",e.util.regex.rgba="rgb[a]?\\(("+e.util.regex.number+"[%]?)\\s*,\\s*("+e.util.regex.number+"[%]?)\\s*,\\s*("+e.util.regex.number+"[%]?)(?:\\s*,\\s*("+e.util.regex.number+"))?\\)",e.util.regex.rgbaNoBackRefs="rgb[a]?\\((?:"+e.util.regex.number+"[%]?)\\s*,\\s*(?:"+e.util.regex.number+"[%]?)\\s*,\\s*(?:"+e.util.regex.number+"[%]?)(?:\\s*,\\s*(?:"+e.util.regex.number+"))?\\)",e.util.regex.hsla="hsl[a]?\\(("+e.util.regex.number+")\\s*,\\s*("+e.util.regex.number+"[%])\\s*,\\s*("+e.util.regex.number+"[%])(?:\\s*,\\s*("+e.util.regex.number+"))?\\)",e.util.regex.hslaNoBackRefs="hsl[a]?\\((?:"+e.util.regex.number+")\\s*,\\s*(?:"+e.util.regex.number+"[%])\\s*,\\s*(?:"+e.util.regex.number+"[%])(?:\\s*,\\s*(?:"+e.util.regex.number+"))?\\)",e.util.regex.hex3="\\#[0-9a-fA-F]{3}",e.util.regex.hex6="\\#[0-9a-fA-F]{6}";var i=t?t.requestAnimationFrame||t.mozRequestAnimationFrame||t.webkitRequestAnimationFrame||t.msRequestAnimationFrame:null;i=i||function(e){e&&setTimeout(e,1e3/60)},e.util.requestAnimationFrame=function(e){i(e)}}(cytoscape,"undefined"==typeof window?null:window),function(e){"use strict";e.math={},e.math.signum=function(e){return e>0?1:0>e?-1:0},e.math.distance=function(e,t){var i=t.x-e.x,r=t.y-e.y;return Math.sqrt(i*i+r*r)},e.math.qbezierAt=function(e,t,i,r){return(1-r)*(1-r)*e+2*(1-r)*r*t+r*r*i},e.math.qbezierPtAt=function(t,i,r,n){return{x:e.math.qbezierAt(t.x,i.x,r.x,n),y:e.math.qbezierAt(t.y,i.y,r.y,n)}},e.math.boundingBoxesIntersect=function(e,t){return e.x1>t.x2?!1:t.x1>e.x2?!1:e.x2t.y2?!1:t.y1>e.y2?!1:!0},e.math.inBoundingBox=function(e,t,i){return e.x1<=t&&t<=e.x2&&e.y1<=i&&i<=e.y2},e.math.pointInBoundingBox=function(e,t){return this.inBoundingBox(e,t.x,t.y)},e.math.roundRectangleIntersectLine=function(e,t,i,r,n,a,o){var s,l=this.getRoundRectangleRadius(n,a),u=n/2,c=a/2,d=i-u+l-o,p=r-c-o,h=i+u-l+o,v=p;if(s=this.finiteLinesIntersect(e,t,i,r,d,p,h,v,!1),s.length>0)return s;var g=i+u+o,f=r-c+l-o,y=g,m=r+c-l+o;if(s=this.finiteLinesIntersect(e,t,i,r,g,f,y,m,!1),s.length>0)return s;var x=i-u+l-o,b=r+c+o,w=i+u-l+o,_=b;if(s=this.finiteLinesIntersect(e,t,i,r,x,b,w,_,!1),s.length>0)return s;var E=i-u-o,S=r-c+l-o,P=E,k=r+c-l+o;if(s=this.finiteLinesIntersect(e,t,i,r,E,S,P,k,!1),s.length>0)return s;var C,D=i-u+l,N=r-c+l;if(C=this.intersectLineCircle(e,t,i,r,D,N,l+o),C.length>0&&C[0]<=D&&C[1]<=N)return[C[0],C[1]];var T=i+u-l,M=r-c+l;if(C=this.intersectLineCircle(e,t,i,r,T,M,l+o),C.length>0&&C[0]>=T&&C[1]<=M)return[C[0],C[1]];var B=i+u-l,z=r+c-l;if(C=this.intersectLineCircle(e,t,i,r,B,z,l+o),C.length>0&&C[0]>=B&&C[1]>=z)return[C[0],C[1]];var I=i-u+l,L=r+c-l;return C=this.intersectLineCircle(e,t,i,r,I,L,l+o),C.length>0&&C[0]<=I&&C[1]>=L?[C[0],C[1]]:[]},e.math.roundRectangleIntersectBox=function(e,t,i,r,n,a,o,s,l){var u=this.getRoundRectangleRadius(n,a),c=o-n/2-l,d=s-a/2+u-l,p=o+n/2+l,h=s+a/2-u+l,v=o-n/2+u-l,g=s-a/2-l,f=o+n/2-u+l,y=s+a/2+l,m=Math.min(e,i),x=Math.max(e,i),b=Math.min(t,r),w=Math.max(t,r);return c>x?!1:m>p?!1:g>w?!1:b>y?!1:c>=m&&x>=c&&d>=b&&w>=d?!0:p>=m&&x>=p&&d>=b&&w>=d?!0:p>=m&&x>=p&&h>=b&&w>=h?!0:c>=m&&x>=c&&h>=b&&w>=h?!0:m>=c&&p>=m&&b>=d&&h>=b?!0:x>=c&&p>=x&&b>=d&&h>=b?!0:x>=c&&p>=x&&w>=d&&h>=w?!0:m>=c&&p>=m&&w>=d&&h>=w?!0:v>=m&&x>=v&&g>=b&&w>=g?!0:f>=m&&x>=f&&g>=b&&w>=g?!0:f>=m&&x>=f&&y>=b&&w>=y?!0:v>=m&&x>=v&&y>=b&&w>=y?!0:m>=v&&f>=m&&b>=g&&y>=b?!0:x>=v&&f>=x&&b>=g&&y>=b?!0:x>=v&&f>=x&&w>=g&&y>=w?!0:m>=v&&f>=m&&w>=g&&y>=w?!0:this.boxIntersectEllipse(m,b,x,w,l,2*u,2*u,v+l,d+l)?!0:this.boxIntersectEllipse(m,b,x,w,l,2*u,2*u,f-l,d+l)?!0:this.boxIntersectEllipse(m,b,x,w,l,2*u,2*u,f-l,h-l)?!0:this.boxIntersectEllipse(m,b,x,w,l,2*u,2*u,v+l,h-l)?!0:!1},e.math.checkInBoundingCircle=function(e,t,i,r,n,a,o,s){return e=(e-o)/(n+r),t=(t-s)/(a+r),i>=e*e+t*t},e.math.boxInBezierVicinity=function(e,t,i,r,n,a,o,s,l,u,c){var d=.25*n+.5*o+.25*l,p=.25*a+.5*s+.25*u,h=Math.min(e,i)-c,v=Math.min(t,r)-c,g=Math.max(e,i)+c,f=Math.max(t,r)+c;if(n>=h&&g>=n&&a>=v&&f>=a)return 1;if(l>=h&&g>=l&&u>=v&&f>=u)return 1;if(d>=h&&g>=d&&p>=v&&f>=p)return 1;if(o>=h&&g>=o&&s>=v&&f>=s)return 1;var y=Math.min(n,d,l),m=Math.min(a,p,u),x=Math.max(n,d,l),b=Math.max(a,p,u);return y>g||h>x||m>f||v>b?0:1},e.math.checkBezierInBox=function(t,i,r,n,a,o,s,l,u,c){function d(d){var p=e.math.qbezierAt(a,s,u,d),h=e.math.qbezierAt(o,l,c,d);return p>=t&&r>=p&&h>=i&&n>=h}for(var p=0;1>=p;p+=.25)if(!d(p))return!1;return!0},e.math.checkStraightEdgeInBox=function(e,t,i,r,n,a,o,s){return n>=e&&i>=n&&o>=e&&i>=o&&a>=t&&r>=a&&s>=t&&r>=s},e.math.checkStraightEdgeCrossesBox=function(e,t,i,r,n,a,o,s,l){var u,c,d=Math.min(e,i)-l,p=Math.min(t,r)-l,h=Math.max(e,i)+l,v=Math.max(t,r)+l,g=o-n,f=n,y=s-a,m=a;if(Math.abs(g)<1e-4)return 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f,y,m,x,b=-1,w=0;w=0?b>x&&(b=x,f=v[w]):(b=x,f=v[w]);return b},e.math.sqDistanceToFiniteLine=function(e,t,i,r,n,a){var o=[e-i,t-r],s=[n-i,a-r],l=s[0]*s[0]+s[1]*s[1],u=o[0]*o[0]+o[1]*o[1],c=o[0]*s[0]+o[1]*s[1],d=c*c/l;return 0>c?u:d>l?(e-n)*(e-n)+(t-a)*(t-a):u-d},e.math.pointInsidePolygon=function(e,t,i,r,n,a,o,s,l){var u=new Array(i.length),c=Math.asin(s[1]/Math.sqrt(s[0]*s[0]+s[1]*s[1]));s[0]<0?c+=Math.PI/2:c=-c-Math.PI/2;for(var d=Math.cos(-c),p=Math.sin(-c),h=0;h0){var g=this.expandPolygon(u,-l);v=this.joinLines(g)}else v=u;for(var f,y,m,x,b,w=0,_=0,h=0;h=e&&e>=m||e>=f&&m>=e))continue;b=(e-f)/(m-f)*(x-y)+y,b>t&&w++,t>b&&_++}return w%2===0?!1:!0},e.math.joinLines=function(e){for(var t,i,r,n,a,o,s,l,u=new Array(e.length/2),c=0;cu)return[];var c=u/l;return[(i-e)*c+e,(r-t)*c+t]},e.math.dotProduct=function(e,t){if(2!=e.length||2!=t.length)throw"dot product: arguments are not vectors";return e[0]*t[0]+e[1]*t[1]},e.math.intersectLineCircle=function(e,t,i,r,n,a,o){var s=[i-e,r-t],l=[n,a],u=[e-n,t-a],c=s[0]*s[0]+s[1]*s[1],d=2*(u[0]*s[0]+u[1]*s[1]),l=u[0]*u[0]+u[1]*u[1]-o*o,p=d*d-4*c*l;if(0>p)return[];var h=(-d+Math.sqrt(p))/(2*c),v=(-d-Math.sqrt(p))/(2*c),g=Math.min(h,v),f=Math.max(h,v),y=[];if(g>=0&&1>=g&&y.push(g),f>=0&&1>=f&&y.push(f),0===y.length)return[];var m=y[0]*s[0]+e,x=y[0]*s[1]+t;if(y.length>1){if(y[0]==y[1])return[m,x];var b=y[1]*s[0]+e,w=y[1]*s[1]+t;return[m,x,b,w]}return[m,x]},e.math.findCircleNearPoint=function(e,t,i,r,n){var a=r-e,o=n-t,s=Math.sqrt(a*a+o*o),l=a/s,u=o/s;return[e+l*i,t+u*i]},e.math.findMaxSqDistanceToOrigin=function(e){for(var t,i=1e-6,r=0;ri&&(i=t);return i},e.math.finiteLinesIntersect=function(e,t,i,r,n,a,o,s,l){var u=(o-n)*(t-a)-(s-a)*(e-n),c=(i-e)*(t-a)-(r-t)*(e-n),d=(s-a)*(i-e)-(o-n)*(r-t);if(0!==d){var p=u/d,h=c/d;return p>=0&&1>=p&&h>=0&&1>=h?[e+p*(i-e),t+p*(r-t)]:l?[e+p*(i-e),t+p*(r-t)]:[]}return 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y=i.startPan,m=c.pan,x=t._private.pan,b=null!=m&&n;b&&(o(y.x,m.x)&&(x.x=s(y.x,m.x,a)),o(y.y,m.y)&&(x.y=s(y.y,m.y,a)),t.trigger("pan"));var w=i.startZoom,_=c.zoom,E=null!=_&&n;if(E&&(o(w,_)&&(t._private.zoom=s(w,_,a)),t.trigger("zoom")),(b||E)&&t.trigger("viewport"),c.css&&h)for(var S=c.css,P=0;P=1&&(i.done=!0),a}function o(t,i){return null==t||null==i?!1:e.is.number(t)&&e.is.number(i)?!0:t&&i?!0:!1}function s(t,i,r){0>r?r=0:r>1&&(r=1);var n,a;if(n=null!=t.pxValue||null!=t.value?null!=t.pxValue?t.pxValue:t.value:t,a=null!=i.pxValue||null!=i.value?null!=i.pxValue?i.pxValue:i.value:i,e.is.number(n)&&e.is.number(a))return n+(a-n)*r;if(e.is.number(n[0])&&e.is.number(a[0])){var o=n,s=a,l=function(e,t){var i=t-e,n=e;return Math.round(r*i+n)},u=l(o[0],s[0]),c=l(o[1],s[1]),d=l(o[2],s[2]);return[u,c,d]}return void 0}var l=this;l.styleEnabled()&&t&&i()}})}(cytoscape,"undefined"==typeof window?null:window),function(e){"use strict";e.fn.core({data:e.define.data({field:"data",bindingEvent:"data",allowBinding:!0,allowSetting:!0,settingEvent:"data",settingTriggersEvent:!0,triggerFnName:"trigger",allowGetting:!0}),removeData:e.define.removeData({field:"data",event:"data",triggerFnName:"trigger",triggerEvent:!0}),scratch:e.define.data({field:"scratch",allowBinding:!1,allowSetting:!0,settingTriggersEvent:!1,allowGetting:!0}),removeScratch:e.define.removeData({field:"scratch",triggerEvent:!1})})}(cytoscape),function(e){"use strict";e.fn.core({on:e.define.on(),one:e.define.on({unbindSelfOnTrigger:!0}),once:e.define.on({unbindAllBindersOnTrigger:!0}),off:e.define.off(),trigger:e.define.trigger()}),e.corefn.bind=e.corefn.on,e.corefn.unbind=e.corefn.off}(cytoscape),function(e){"use strict";e.fn.core({png:function(e){var t=this._private.renderer;return e=e||{},t.png(e)}})}(cytoscape),function(e){"use strict";e.fn.core({layout:function(e){var t=this._private.prevLayout=null==e?this._private.prevLayout:this.initLayout(e);return t.run(),this},makeLayout:function(e){return this.initLayout(e)},initLayout:function(t){if(null==t)return void e.util.error("Layout options must be specified to make a layout");if(null==t.name)return void e.util.error("A `name` must be specified to make a layout");var i=t.name,r=e.extension("layout",i);if(null==r)return void e.util.error("Can not apply layout: No such layout `"+i+"` found; did you include its JS file?");t.eles=null!=t.eles?t.eles:this.$(),e.is.string(t.eles)&&(t.eles=this.$(t.eles));var n=new r(e.util.extend({},t,{cy:this}));return e.is.plainObject(n._private)||(n._private={}),n._private.cy=this,n._private.listeners=[],n}})}(cytoscape),function(e){"use strict";e.fn.core({notify:function(e){if(this._private.batchingNotify){var t=this._private.batchNotifyEles,i=this._private.batchNotifyTypes;if(e.collection)for(var r=0;r0&&l>0&&!isNaN(r.w)&&!isNaN(r.h)&&r.w>0&&r.h>0){o=Math.min((s-2*i)/r.w,(l-2*i)/r.h),o=o>this._private.maxZoom?this._private.maxZoom:o,o=othis._private.maxZoom?this._private.maxZoom:r,r=ri.maxZoom||!i.zoomingEnabled?o=!0:(i.zoom=l,a.push("zoom"))}if(n&&(!o||!t.cancelOnFailedZoom)&&i.panningEnabled){var u=t.pan;e.is.number(u.x)&&(i.pan.x=u.x,s=!1),e.is.number(u.y)&&(i.pan.y=u.y,s=!1),s||a.push("pan")}return a.length>0&&(a.push("viewport"),this.trigger(a.join(" ")),this.notify({type:"viewport"})),this},center:function(e){var t=this.getCenterPan(e);return t&&(this._private.pan=t,this.trigger("pan viewport"),this.notify({type:"viewport"})),this},getCenterPan:function(t){if(this._private.panningEnabled){if(e.is.string(t)){var i=t;t=this.elements(i)}else e.is.elementOrCollection(t)||(t=this.elements());var r=t.boundingBox(),n=this.width(),a=this.height(),o=this._private.zoom,s={x:(n-o*(r.x1+r.x2))/2,y:(a-o*(r.y1+r.y2))/2};return s}},reset:function(){return this._private.panningEnabled&&this._private.zoomingEnabled?(this.viewport({pan:{x:0,y:0},zoom:1}),this):this},width:function(){var e=this._private.container;return e?e.clientWidth:1},height:function(){var e=this._private.container;return e?e.clientHeight:1},extent:function(){var e=this._private.pan,t=this._private.zoom,i=this.renderedExtent(),r={x1:(i.x1-e.x)/t,x2:(i.x2-e.x)/t,y1:(i.y1-e.y)/t,y2:(i.y2-e.y)/t};return r.w=r.x2-r.x1,r.h=r.y2-r.y1,r},renderedExtent:function(){var e=this.width(),t=this.height();return{x1:0,y1:0,x2:e,y2:t,w:e,h:t}}}),e.corefn.centre=e.corefn.center,e.corefn.autolockNodes=e.corefn.autolock,e.corefn.autoungrabifyNodes=e.corefn.autoungrabifyNodes}(cytoscape),function(e){"use strict";e.fn.collection=e.fn.eles=function(t){for(var i in t){var r=t[i];e.Collection.prototype[i]=r}};var t={prefix:{nodes:"n",edges:"e"},id:{nodes:0,edges:0},generate:function(t,i,r){var n=e.is.element(i)?i._private:i,a=n.group,o=null!=r?r:this.prefix[a]+this.id[a];if(t.getElementById(o).empty())this.id[a]++;else for(;!t.getElementById(o).empty();)o=this.prefix[a]+ ++this.id[a];return o}};e.Element=function(t,i,r){if(!(this instanceof e.Element))return new e.Element(t,i,r);var n=this;if(r=void 0===r||r?!0:!1,void 0===t||void 0===i||!e.is.core(t))return void e.util.error("An element must have a core reference and parameters set");if("nodes"!==i.group&&"edges"!==i.group)return void e.util.error("An element must be of type `nodes` or `edges`; you specified `"+i.group+"`");if(this.length=1,this[0]=this,this._private={cy:t,single:!0,data:i.data||{},layoutData:{},position:i.position||{},autoWidth:void 0,autoHeight:void 0,listeners:[],group:i.group,style:{},rstyle:{},styleCxts:[],removed:!0,selected:i.selected?!0:!1,selectable:void 0===i.selectable?!0:i.selectable?!0:!1,locked:i.locked?!0:!1,grabbed:!1,grabbable:void 0===i.grabbable?!0:i.grabbable?!0:!1,active:!1,classes:{},animation:{current:[],queue:[]},rscratch:{},scratch:{},edges:[],children:[]},i.renderedPosition){var a=i.renderedPosition,o=t.pan(),s=t.zoom();this._private.position={x:(a.x-o.x)/s,y:(a.y-o.y)/s}}if(e.is.string(i.classes))for(var l=i.classes.split(/\s+/),u=0,c=l.length;c>u;u++){var d=l[u];d&&""!==d&&(n._private.classes[d]=!0)}i.css&&t.style().applyBypass(this,i.css),(void 0===r||r)&&this.restore()},e.Collection=function(i,r,n){if(!(this instanceof e.Collection))return new e.Collection(i,r);if(void 0===i||!e.is.core(i))return void e.util.error("A collection must have a reference to the core");var a={},o={},s=!1;if(r){if(r.length>0&&e.is.plainObject(r[0])&&!e.is.element(r[0])){s=!0;for(var l=[],u={},c=0,d=r.length;d>c;c++){var p=r[c];null==p.data&&(p.data={});var h=p.data;if(null==h.id)h.id=t.generate(i,p);else if(0!==i.getElementById(h.id).length||u[h.id])continue;var v=new e.Element(i,p,!1);l.push(v),u[h.id]=!0}r=l}}else r=[];this.length=0;for(var c=0,d=r.length;d>c;c++){var g=r[c];if(g){var f=g._private.data.id;(!n||n.unique&&!a[f])&&(a[f]=g,o[f]=this.length,this[this.length]=g,this.length++)}}this._private={cy:i,ids:a,indexes:o},s&&this.restore()},e.elefn=e.elesfn=e.Element.prototype=e.Collection.prototype,e.elesfn.cy=function(){return this._private.cy},e.elesfn.element=function(){return this[0]},e.elesfn.collection=function(){return e.is.collection(this)?this:new e.Collection(this._private.cy,[this])},e.elesfn.unique=function(){return new e.Collection(this._private.cy,this,{unique:!0})},e.elesfn.getElementById=function(t){var i=this._private.cy,r=this._private.ids[t];return r?r:e.Collection(i)},e.elesfn.json=function(){var t=this.element();if(null==t)return void 0;var i=t._private,r=e.util.copy({data:i.data,position:i.position,group:i.group,bypass:i.bypass,removed:i.removed,selected:i.selected,selectable:i.selectable,locked:i.locked,grabbed:i.grabbed,grabbable:i.grabbable,classes:""}),n=[];for(var a in i.classes)i.classes[a]&&n.push(a);for(var o=0;od;d++){var h=r[d];h.isNode()?(s.push(h),u++):(l.push(h),c++)}o=s.concat(l);for(var d=0,p=o.length;p>d;d++){var h=o[d];if(h.removed()){var v=h._private,g=v.data;if(void 0===g.id)g.id=t.generate(a,h);else{if(e.is.emptyString(g.id)||!e.is.string(g.id)){e.util.error("Can not create element with invalid string ID `"+g.id+"`");continue}if(0!==a.getElementById(g.id).length){e.util.error("Can not create second element with ID `"+g.id+"`");continue}}var f=g.id;if(h.isEdge()){for(var y=h,m=["source","target"],x=m.length,b=!1,w=0;x>w;w++){var _=m[w],E=g[_];null==E||""===E?(e.util.error("Can not create edge `"+f+"` with unspecified "+_),b=!0):a.getElementById(E).empty()&&(e.util.error("Can not create edge `"+f+"` with nonexistant "+_+" `"+E+"`"),b=!0)}if(b)continue;var S=a.getElementById(g.source),P=a.getElementById(g.target);S._private.edges.push(y),P._private.edges.push(y),y._private.source=S,y._private.target=P}v.ids={},v.ids[f]=h,v.removed=!1,a.addToPool(h),n.push(h)}}for(var d=0;u>d;d++){var k=o[d],g=k._private.data,C=k._private.data.parent,D=null!=C;if(D){var N=a.getElementById(C);if(N.empty())g.parent=void 0;else{for(var T=!1,M=N;!M.empty();){if(k.same(M)){T=!0,g.parent=void 0;break}M=M.parent()}T||(N[0]._private.children.push(k),k._private.parent=N[0],a._private.hasCompoundNodes=!0)}}}if(n=new e.Collection(a,n),n.length>0){var B=n.add(n.connectedNodes()).add(n.parent());B.updateStyle(i),i?n.rtrigger("add"):n.trigger("add")}return r},e.elesfn.removed=function(){var e=this[0];return e&&e._private.removed},e.elesfn.inside=function(){var e=this[0];return e&&!e._private.removed},e.elesfn.remove=function(t){function i(e){for(var t=e._private.edges,i=0;ip;p++){var v=s[p];n(v)}for(var p=0;p0&&(t&&this.cy().notify({type:"remove",collection:x}),x.trigger("remove"));for(var b={},p=0;p0,a=t.getElementById(r).length>0;if(n||a){var o=this.jsons();this.remove();for(var s=0;s0;if(c){var o=this.jsons();this.remove();for(var s=0;su||!n)&&(o=u,n=l)}return{edge:n,dist:o}};g.size()>0;){var y=g.pop(),m=y.value,x=y.id,b=a.getElementById(x);if(u[x]=m,m===Math.Infinite)break;for(var w=b.neighborhood().intersect(d),h=0;h0)for(r.unshift(i);l[n.id()];){var o=l[n.id()];r.unshift(o.edge),r.unshift(o.node),n=o.node}return new e.Collection(a,r)}}}}),e.elesfn.bfs=e.elesfn.breadthFirstSearch,e.elesfn.dfs=e.elesfn.depthFirstSearch,e.elesfn.stdBfs=e.elesfn.stdBreadthFirstSearch,e.elesfn.stdDfs=e.elesfn.stdDepthFirstSearch}(cytoscape),function(e){"use strict";e.fn.eles({aStar:function(t){t=t||{};var i=function(){a&&console.log.apply(console,arguments)},r=function(e,t,i,n){if(e==t)return n.push(o.getElementById(t)),n;if(t in i){var a=i[t],s=g[t];return n.push(o.getElementById(t)),n.push(o.getElementById(s)),r(e,a,i,n)}return void 0},n=function(e,t){if(0===e.length)return void 0;for(var i=0,r=t[e[0]],n=1;na&&(r=a,i=n)}return i};if(null!=t.debug)var a=t.debug;else var a=!1;i("Starting aStar...");var o=this._private.cy;if(null==t||null==t.root)return void 0;var s=e.is.string(t.root)?this.filter(t.root)[0]:t.root[0];if(i("Source node: %s",s.id()),null==t.goal)return void 0;var l=e.is.string(t.goal)?this.filter(t.goal)[0]:t.goal[0];if(i("Target node: %s",l.id()),null!=t.heuristic&&e.is.fn(t.heuristic))var u=t.heuristic;else var u=function(){return 0};if(null!=t.weight&&e.is.fn(t.weight))var c=t.weight;else var c=function(){return 1};if(null!=t.directed)var d=t.directed;else var d=!1;var p=[],h=[s.id()],v={},g={},f={},y={};f[s.id()]=0,y[s.id()]=u(s);for(var m=this.edges().not(":loop"),x=this.nodes(),b=0;h.length>0;){var w=n(h,y),_=this.filter("#"+h[w])[0];if(b++,i("\nStep: %s",b),i("Processing node: %s, fScore = %s",_.id(),y[_.id()]),_.id()==l.id()){i("Found goal node!");var E=r(s.id(),l.id(),v,[]);return E.reverse(),i("Path: %s",E),{found:!0,distance:f[_.id()],path:new e.Collection(o,E),steps:b}}p.push(_.id()),h.splice(w,1),i("Added node to closedSet, removed from openSet."),i("Processing neighbors...");for(var S=_.connectedEdges(d?'[source = "'+_.id()+'"]':void 0).intersect(m),P=0;Pd;d++)c[l[d].id()]=d;for(var p=[],d=0;u>d;d++){for(var h=new Array(u),v=0;u>v;v++)h[v]=d==v?0:1/0;p.push(h)}var g=[],f=[],y=function(e){for(var t=0;u>t;t++){for(var i=new Array(u),r=0;u>r;r++)i[r]=void 0;e.push(i)}};y(g),y(f);for(var d=0;db&&(p[m][x]=b,g[m][x]=x,f[m][x]=s[d])}if(!o)for(var d=0;db&&(p[m][x]=b,g[m][x]=x,f[m][x]=s[d])}for(var w=0;u>w;w++)for(var d=0;u>d;d++)for(var v=0;u>v;v++)p[d][w]+p[w][v]d;d++)_.push(l[d].id());var E={distance:function(t,i){if(e.is.string(t))var r=n.filter(t)[0].id();else var r=t.id();if(e.is.string(i))var a=n.filter(i)[0].id();else var a=i.id();return p[c[r]][c[a]]},path:function(t,i){var r=function(e,t,i,r,a){if(e===t)return n.getElementById(r[e]);if(void 0===i[e][t])return void 0;for(var o=[n.getElementById(r[e])],s=e;e!==t;){s=e,e=i[e][t];var l=a[s][e];o.push(l),o.push(n.getElementById(r[e]))}return o};if(e.is.string(t))var a=n.filter(t)[0].id();else var a=t.id();if(e.is.string(i))var o=n.filter(i)[0].id();else var o=i.id();var s=r(c[a],c[o],g,_,f);return new e.Collection(n,s)}};return E},bellmanFord:function(t){t=t||{};var i=function(){r&&console.log.apply(console,arguments)};if(null!=t.debug)var r=t.debug;else var r=!1;if(i("Starting bellmanFord..."),null!=t.weight&&e.is.fn(t.weight))var n=t.weight;else var n=function(){return 1};if(null!=t.directed)var a=t.directed;else var a=!1;if(null==t.root)return void e.util.error("options.root required");if(e.is.string(t.root))var o=this.filter(t.root)[0];else var o=t.root[0];i("Source node: %s",o.id());for(var s=this._private.cy,l=this.edges().not(":loop"),u=this.nodes(),c=u.length,d={},p=0;c>p;p++)d[u[p].id()]=p;for(var h=[],v=[],g=[],p=0;c>p;p++)h[p]=u[p].id()===o.id()?0:1/0,v[p]=void 0;for(var f=!1,p=1;c>p;p++){f=!1;for(var y=0;yp;p++)_.push(u[p].id());var E={distanceTo:function(t){if(e.is.string(t))var i=s.filter(t)[0].id();else var i=t.id();return h[d[i]]},pathTo:function(t){var i=function(e,t,i,r,n,a){for(;;){if(n.push(s.getElementById(r[i])),n.push(a[i]),t===i)return n;var o=e[i];if("undefined"==typeof o)return void 0;i=o}};if(e.is.string(t))var r=s.filter(t)[0].id();else var r=t.id();var n=[],a=i(v,d[o.id()],d[r],_,n,g);return null!=a&&a.reverse(),new e.Collection(s,a)},hasNegativeWeightCycle:!1};return E},kargerStein:function(t){t=t||{};var i=function(){a&&console.log.apply(console,arguments)},r=function(e,t,i){for(var r=i[e],n=r[1],a=r[2],o=t[n],s=t[a],l=i.filter(function(e){return t[e[1]]===o&&t[e[2]]===s?!1:t[e[1]]===s&&t[e[2]]===o?!1:!0}),u=0;u=i)return t;var o=Math.floor(Math.random()*t.length),s=r(o,e,t);return n(e,s,i-1,a)};if(null!=t&&null!=t.debug)var a=t.debug;else var a=!1;i("Starting kargerStein...");var o=this._private.cy,s=this.edges().not(":loop"),l=this.nodes(),u=l.length,c=s.length,d=Math.ceil(Math.pow(Math.log(u)/Math.LN2,2)),p=Math.floor(u/Math.sqrt(2));if(2>u)return void e.util.error("At least 2 nodes are required for KargerSteing algorithm!");for(var h={},v=0;u>v;v++)h[l[v].id()]=v;for(var g=[],v=0;c>v;v++){var f=s[v];g.push([v,h[f.source().id()],h[f.target().id()]])}for(var y,m=1/0,x=[],v=0;u>v;v++)x.push(v);for(var b=0;d>=b;b++){var w=x.slice(0),_=n(w,g,u,p),E=w.slice(0),S=n(w,_,p,2),P=n(E,_,p,2);S.length<=P.length&&S.lengthr;r++)i+=e[r];for(var r=0;t>r;r++)e[r]=e[r]/i},r=function(){n&&console.log.apply(console,arguments)};if(null!=t&&null!=t.debug)var n=t.debug;else var n=!1;if(r("Starting pageRank..."),null!=t&&null!=t.dampingfactor)var a=t.dampingFactor;else var a=.8;if(null!=t&&null!=t.precision)var o=t.precision;else var o=1e-6;if(null!=t&&null!=t.iterations)var s=t.iterations;else var s=200;if(null!=t&&null!=t.weight&&e.is.fn(t.weight))var l=t.weight;else var l=function(){return 1};for(var u=this._private.cy,c=this.edges().not(":loop"),d=this.nodes(),p=d.length,h=c.length,v={},g=0;p>g;g++)v[d[g].id()]=g;for(var f=[],y=[],m=(1-a)/p,g=0;p>g;g++){for(var x=[],b=0;p>b;b++)x.push(0);f.push(x),y.push(0)}for(var g=0;h>g;g++){var w=c[g],_=v[w.source().id()],E=v[w.target().id()],S=l.apply(w,[w]);f[E][_]+=S,y[_]+=S}for(var P=1/p+m,b=0;p>b;b++)if(0===y[b])for(var g=0;p>g;g++)f[g][b]=P;else for(var g=0;p>g;g++)f[g][b]=f[g][b]/y[b]+m;for(var k,C=[],D=[],g=0;p>g;g++)C.push(1),D.push(0);for(var N=0;s>N;N++){for(var T=D.slice(0),g=0;p>g;g++)for(var b=0;p>b;b++)T[g]+=f[g][b]*C[b];i(T),k=C,C=T;for(var M=0,g=0;p>g;g++)M+=Math.pow(k[g]-C[g],2);if(o>M){r("Stoped at iteration %s",N);break}}r("Result:\n"+C);var B={rank:function(t){if(e.is.string(t))var i=u.filter(t)[0].id();else var i=t.id();return C[v[i]]}};return B}})}(cytoscape),function(e){"use strict";e.fn.eles({animated:e.define.animated(),clearQueue:e.define.clearQueue(),delay:e.define.delay(),animate:e.define.animate(),stop:e.define.stop()})}(cytoscape),function(e){"use strict";e.fn.eles({classes:function(t){var i,r=this,n=[];if(e.is.fn(t))i=t;else if(!e.is.plainObject(t))return this;for(var a=0;a0&&new e.Collection(this.cy(),n).updateStyle().trigger("class"),this},addClass:function(t){t=t.split(/\s+/);for(var i=this,r=[],n=0;n0&&new e.Collection(this._private.cy,r).updateStyle().trigger("class"),i},hasClass:function(e){var t=this[0];return null!=t&&t._private.classes[e]?!0:!1},toggleClass:function(t,i){for(var r=t.split(/\s+/),n=this,a=[],o=0,s=n.length;s>o;o++)for(var l=n[o],u=0;u0&&new e.Collection(this._private.cy,a).updateStyle().trigger("class"),n},removeClass:function(t){t=t.split(/\s+/);for(var i=this,r=[],n=0;n0&&new e.Collection(i._private.cy,r).updateStyle(),i.trigger("class"),i},flashClass:function(e,t){var i=this;if(null==t)t=250;else if(0===t)return i;return i.addClass(e),setTimeout(function(){i.removeClass(e)},t),i}})}(cytoscape),function(e){"use strict";e.fn.eles({allAre:function(e){return this.filter(e).length===this.length},is:function(e){return this.filter(e).length>0},some:function(e,t){for(var i=0;i0},allAreNeighbors:function(e){return e=this.cy().collection(e),this.neighborhood().intersect(e).length===e.length}})}(cytoscape),function(e){"use strict";e.fn.eles({parent:function(t){for(var i=[],r=this._private.cy,n=0;n0&&i.push(o)}return new e.Collection(r,i,{unique:!0}).filter(t)},parents:function(t){for(var i=[],r=this.parent();r.nonempty();){for(var n=0;n0?this.add(s):this;i?l.trigger("position"):l.rtrigger("position")}return this},silentPositions:function(e){return this.positions(e,!0)},updateCompoundBounds:function(){function t(e){var 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Mt={x:X.cp2x-g.x,y:X.cp2y-g.y},Bt=Math.sqrt(Mt.x*Mt.x+Mt.y*Mt.y),zt={x:Mt.x/Bt,y:Mt.y/Bt},It=Math.max(y,m),Lt={x:X.cp2x+2*zt.x*It,y:X.cp2y+2*zt.y*It},Ot=w.intersectLine(g.x,g.y,y,m,Lt.x,Lt.y,E/2);Ct?(X.cp2x=X.cp2x+zt.x*(Pt-kt),X.cp2y=X.cp2y+zt.y*(Pt-kt)):(X.cp2x=Ot[0]+zt.x*Pt,X.cp2y=Ot[1]+zt.y*Pt)}if(wt||_t||Nt){Tt=!0;var Mt={x:X.cp2x-f.x,y:X.cp2y-f.y},Bt=Math.sqrt(Mt.x*Mt.x+Mt.y*Mt.y),zt={x:Mt.x/Bt,y:Mt.y/Bt},It=Math.max(y,m),Lt={x:X.cp2x+2*zt.x*It,y:X.cp2y+2*zt.y*It},Rt=_.intersectLine(f.x,f.y,x,b,Lt.x,Lt.y,S/2);Nt?(X.cp2x=X.cp2x+zt.x*(Pt-Dt),X.cp2y=X.cp2y+zt.y*(Pt-Dt)):(X.cp2x=Rt[0]+zt.x*Pt,X.cp2y=Rt[1]+zt.y*Pt)}Tt&&this.findEndpoints(l)}else"straight"===X.edgeType&&(X.midX=(Z+it)/2,X.midY=(G+nt)/2);this.projectBezier(l)}}}for(var s=0;sC*N+D*T)n.straightEdgeTooShort=!0;else{var P=n;this.drawStyledEdge(i,e,[P.startX,P.startY,P.endX,P.endY],_,w),n.straightEdgeTooShort=!1}}else{var P=n;this.drawStyledEdge(i,e,[P.startX,P.startY,P.cp2x,P.cp2y,P.endX,P.endY],_,w)}"haystack"===n.edgeType?this.drawArrowheads(e,i,r):n.noArrowPlacement!==!0&&void 0!==n.startX&&this.drawArrowheads(e,i,r)}}},t.prototype.drawStyledEdge=function(e,i,r,n){var a,o=e._private.rscratch,s=i,l=!1,u=t.usePaths();if(u){for(var c=r,d=o.pathCacheKey&&c.length===o.pathCacheKey.length,p=d,h=0;p&&hu?y+=Math.PI/2:y=-(Math.PI/2+y);var m=this.getArrowWidth(a),x=t.arrowShapes[o];if(p){var b=m+"$"+o+"$"+y+"$"+s+"$"+l;h.arrowPathCacheKey=h.arrowPathCacheKey||{},h.arrowPathCache=h.arrowPathCache||{};var w=h.arrowPathCacheKey[i]===b;w?(d=r=h.arrowPathCache[i],v=!0):(d=r=new Path2D,h.arrowPathCacheKey[i]=b,h.arrowPathCache[i]=d)}r.beginPath&&r.beginPath(),v||x.draw(r,m,y,f),!x.leavePathOpen&&r.closePath&&r.closePath(),r=g,("filled"===n||"both"===n)&&(p?r.fill(d):r.fill()),("hollow"===n||"both"===n)&&(r.lineWidth=x.matchEdgeWidth?a:1,r.lineJoin="miter",p?r.stroke(d):r.stroke())}}(cytoscape),function(e){"use strict";var t=e("renderer","canvas");t.prototype.getCachedImage=function(e,t){var i=this,r=i.imageCache=i.imageCache||{};if(r[e]&&r[e].image)return r[e].image;var n=r[e]=r[e]||{},a=n.image=new Image;return a.addEventListener("load",t),a.src=e,a},t.prototype.drawInscribedImage=function(e,i,r){var n=this,a=r._private.position.x,o=r._private.position.y,s=r._private.style,l=s["background-fit"].value,u=s["background-position-x"],c=s["background-position-y"],d=s["background-repeat"].value,p=r.width(),h=r.height(),v=r._private.rscratch,g=s["background-clip"].value,f="node"===g,y=s["background-image-opacity"].value,m=i.width,x=i.height;if("contain"===l){var b=Math.min(p/m,h/x);m*=b,x*=b}else if("cover"===l){var b=Math.max(p/m,h/x);m*=b,x*=b}var w=a-p/2;w+="%"===u.units?(p-m)*u.value/100:u.pxValue;var _=o-h/2;_+="%"===c.units?(h-x)*c.value/100:c.pxValue,v.pathCache&&(w-=a,_-=o,a=0,o=0);var E=e.globalAlpha;if(e.globalAlpha=y,"no-repeat"===d)f&&(e.save(),v.pathCache?e.clip(v.pathCache):(t.nodeShapes[n.getNodeShape(r)].drawPath(e,a,o,p,h),e.clip())),e.drawImage(i,0,0,i.width,i.height,w,_,m,x),f&&e.restore();else{var S=e.createPattern(i,d);e.fillStyle=S,t.nodeShapes[n.getNodeShape(r)].drawPath(e,a,o,p,h),e.translate(w,_),e.fill(),e.translate(-w,-_)}e.globalAlpha=E}}(cytoscape),function(e){"use strict";var t=e("renderer","canvas");t.prototype.drawEdgeText=function(e,t){var i=t._private.style.content.strValue;if(!(!i||i.match(/^\s+$/)||this.hideEdgesOnViewport&&(this.dragData.didDrag||this.pinching||this.hoverData.dragging||this.data.wheel||this.swipePanning))){var r=t._private.style["font-size"].pxValue*t.cy().zoom(),n=t._private.style["min-zoomed-font-size"].pxValue;if(!(n>r)){e.textAlign="center",e.textBaseline="middle";var a=t._private.rscratch;this.drawText(e,t,a.labelX,a.labelY)}}},t.prototype.drawNodeText=function(e,t){var i=t._private.style.content.strValue;if(i&&!i.match(/^\s+$/)){var r=t._private.style["font-size"].pxValue*t.cy().zoom(),n=t._private.style["min-zoomed-font-size"].pxValue;if(!(n>r)){var a=t._private.style["text-halign"].strValue,o=t._private.style["text-valign"].strValue,s=t._private.rscratch;switch(a){case"left":e.textAlign="right";break;case"right":e.textAlign="left";break;default:e.textAlign="center"}switch(o){case"top":e.textBaseline="bottom";break;case"bottom":e.textBaseline="top";break;default:e.textBaseline="middle"}this.drawText(e,t,s.labelX,s.labelY)}}},t.prototype.getFontCache=function(e){var t;this.fontCaches=this.fontCaches||[];for(var i=0;i0&&(e.lineWidth=s,e.strokeText(o,i,r)),e.fillText(o,i,r)}}}}(cytoscape),function(e){"use strict";var t=e("renderer","canvas");t.prototype.drawNode=function(e,i,r){var n,a,o,s=this,l=i._private.style,u=i._private.rscratch,c=t.usePaths(),d=e,p=!1,h=l["overlay-padding"].pxValue,v=l["overlay-opacity"].value,g=l["overlay-color"].value;if(!r||0!==v){var f=i.effectiveOpacity();if(0!==f)if(n=this.getNodeWidth(i),a=this.getNodeHeight(i),e.lineWidth=l["border-width"].pxValue,void 0!==r&&r)v>0&&(this.fillStyle(e,g[0],g[1],g[2],v),t.nodeShapes.roundrectangle.drawPath(e,i._private.position.x,i._private.position.y,n+2*h,a+2*h),e.fill());else{var y=l["background-color"].value,m=l["border-color"].value,x=l["border-style"].value;if(this.fillStyle(e,y[0],y[1],y[2],l["background-opacity"].value*l.opacity.value*f),this.strokeStyle(e,m[0],m[1],m[2],l["border-opacity"].value*l.opacity.value*f),e.lineJoin="miter",e.setLineDash)switch(x){case"dotted":e.setLineDash([1,1]);break;case"dashed":e.setLineDash([4,2]);break;case"solid":case"double":e.setLineDash([])}var b=l["background-image"].value[2]||l["background-image"].value[1],w=l.shape.strValue,_=i._private.position;if(c){var E=w+"$"+n+"$"+a;e.translate(_.x,_.y),u.pathCacheKey===E?(o=e=u.pathCache,p=!0):(o=e=new Path2D,u.pathCacheKey=E,u.pathCache=o)}if(!p){var S=_;c&&(S={x:0,y:0}),t.nodeShapes[this.getNodeShape(i)].drawPath(e,S.x,S.y,n,a)}if(e=d,c?e.fill(o):e.fill(),void 0!==b){var P=this.getCachedImage(b,function(){s.data.canvasNeedsRedraw[t.NODE]=!0,s.data.canvasNeedsRedraw[t.DRAG]=!0,s.redraw()});P.complete&&this.drawInscribedImage(e,P,i)}var k=l["background-blacken"].value,C=l["border-width"].pxValue;if(this.hasPie(i)&&(this.drawPie(e,i),(0!==k||0!==C)&&(c||t.nodeShapes[this.getNodeShape(i)].drawPath(e,_.x,_.y,n,a))),k>0?(this.fillStyle(e,0,0,0,k),c?e.fill(o):e.fill()):0>k&&(this.fillStyle(e,255,255,255,-k),c?e.fill(o):e.fill()),C>0&&(c?e.stroke(o):e.stroke(),"double"===x)){e.lineWidth=l["border-width"].pxValue/3;var D=e.globalCompositeOperation;e.globalCompositeOperation="destination-out",c?e.stroke(o):e.stroke(),e.globalCompositeOperation=D}c&&e.translate(-_.x,-_.y),e.setLineDash&&e.setLineDash([])}}},t.prototype.hasPie=function(e){return e=e[0],e._private.hasPie},t.prototype.drawPie=function(i,r){r=r[0];var n=r._private.style["pie-size"],a=this.getNodeWidth(r),o=this.getNodeHeight(r),s=r._private.position.x,l=r._private.position.y,u=Math.min(a,o)/2,c=0,d=t.usePaths();d&&(s=0,l=0),"%"===n.units?u=u*n.value/100:void 0!==n.pxValue&&(u=n.pxValue/2);for(var p=1;p<=e.style.pieBackgroundN;p++){var h=r._private.style["pie-"+p+"-background-size"].value,v=r._private.style["pie-"+p+"-background-color"].value,g=r._private.style["pie-"+p+"-background-opacity"].value,f=h/100,y=1.5*Math.PI+2*Math.PI*c,m=2*Math.PI*f,x=y+m;0===h||c>=1||c+f>1||(i.beginPath(),i.moveTo(s,l),i.arc(s,l,u,y,x),i.closePath(),this.fillStyle(i,v[0],v[1],v[2],g),i.fill(),c+=f)}}}(cytoscape),function(e){"use strict";var t=e("renderer","canvas");t.prototype.getPixelRatio=function(){var e=this.data.contexts[0];if(null!=this.forcedPixelRatio)return this.forcedPixelRatio;var t=e.backingStorePixelRatio||e.webkitBackingStorePixelRatio||e.mozBackingStorePixelRatio||e.msBackingStorePixelRatio||e.oBackingStorePixelRatio||e.backingStorePixelRatio||1;return(window.devicePixelRatio||1)/t},t.prototype.paintCache=function(e){for(var t,i=this.paintCaches=this.paintCaches||[],r=!0,n=0;n=o&&(i=r.bufferCanvases[t.TEXTURE_BUFFER],this.textureMult=2,i.width=s*this.textureMult,i.height=l*this.textureMult),this.canvasWidth=s,this.canvasHeight=l}},t.prototype.renderTo=function(e,t,i,r){this.redraw({forcedContext:e,forcedZoom:t,forcedPan:i,drawAllLayers:!0,forcedPxRatio:r})},t.prototype.timeToRender=function(){return this.redrawTotalTime/this.redrawCount},t.minRedrawLimit=1e3/60,t.maxRedrawLimit=1e3,t.motionBlurDelay=100,t.prototype.redraw=function(i){function r(){function i(e,t){if(e.setTransform(1,0,0,1,0,0),"motionBlur"===t){var i=e.globalCompositeOperation;e.globalCompositeOperation="destination-out",u.fillStyle(e,255,255,255,.666),e.fillRect(0,0,u.canvasWidth,u.canvasHeight),e.globalCompositeOperation=i}else n||void 0!==t&&!t||e.clearRect(0,0,u.canvasWidth,u.canvasHeight);a||(e.translate(b.x,b.y),e.scale(m,m)),l&&e.translate(l.x,l.y),s&&e.scale(s,s)}function r(e,t){for(var i=e.eles,r=0;r0&&(C.strokeStyle="rgba("+f["selection-box-border-color"].value[0]+","+f["selection-box-border-color"].value[1]+","+f["selection-box-border-color"].value[2]+","+f["selection-box-opacity"].value+")",C.strokeRect(p.select[0],p.select[1],p.select[2]-p.select[0],p.select[3]-p.select[1]))}if(p.bgActivePosistion){var y=p.cy.zoom(),q=p.bgActivePosistion;C.fillStyle="rgba("+f["active-bg-color"].value[0]+","+f["active-bg-color"].value[1]+","+f["active-bg-color"].value[2]+","+f["active-bg-opacity"].value+")",C.beginPath(),C.arc(q.x,q.y,f["active-bg-size"].pxValue/y,0,2*Math.PI),C.fill()}var F=u.averageRedrawTime;if(u.showFps&&F){F=Math.round(F);var j=Math.round(1e3/F);C.setTransform(1,0,0,1,0,0),C.fillStyle="rgba(255, 0, 0, 0.75)",C.strokeStyle="rgba(255, 0, 0, 0.75)",C.lineWidth=1,C.fillText("1 frame = "+F+" ms = "+j+" fps",0,20);var W=60;C.strokeRect(0,30,250,20),C.fillRect(0,30,250*Math.min(j/W,1),20)}a||(h[t.SELECT_BOX]=!1)}var H=+new Date;void 0===u.averageRedrawTime&&(u.averageRedrawTime=H-w),void 0===u.redrawCount&&(u.redrawCount=0),u.redrawCount++,void 0===u.redrawTotalTime&&(u.redrawTotalTime=0),u.redrawTotalTime+=H-w,u.lastRedrawTime=H-w,u.averageRedrawTime=u.averageRedrawTime/2+(H-w)/2,u.currentlyDrawing=!1,u.clearingMotionBlur&&(u.clearingMotionBlur=!1,u.motionBlurCleared=!0,u.motionBlur=!0),v&&(u.motionBlurTimeout=setTimeout(function(){u.motionBlurTimeout=null,u.clearedNodeLayerForMotionBlur=!1,u.motionBlur=!1,u.clearingMotionBlur=!0,h[t.NODE]=!0,h[t.DRAG]=!0,u.redraw()},t.motionBlurDelay))}i=i||{};var n=i.forcedContext,a=i.drawAllLayers,o=i.drawOnlyNodeLayer,s=i.forcedZoom,l=i.forcedPan,u=this,c=void 0===i.forcedPxRatio?this.getPixelRatio():i.forcedPxRatio,d=u.data.cy,p=u.data,h=p.canvasNeedsRedraw,v=void 0!==i.motionBlur?i.motionBlur:u.motionBlur;v=v&&!n&&u.motionBlurEnabled,u.motionBlurTimeout&&clearTimeout(u.motionBlurTimeout),this.redrawTimeout&&clearTimeout(this.redrawTimeout),this.redrawTimeout=null,void 0===this.averageRedrawTime&&(this.averageRedrawTime=0);var g=t.minRedrawLimit,f=t.maxRedrawLimit,y=this.averageRedrawTime;y=g>y?g:y,y=f>y?y:f,void 0===this.lastDrawTime&&(this.lastDrawTime=0);var m=+new Date,x=m-this.lastDrawTime,b=x>=y;if(!n){if(!b||this.currentlyDrawing)return void(this.redrawTimeout=setTimeout(function(){u.redraw()},y));this.lastDrawTime=m,this.currentlyDrawing=!0}var w=+new Date;n?r():e.util.requestAnimationFrame(r),n||u.initrender||(u.initrender=!0,d.trigger("initrender"))}}(cytoscape),function(e){"use strict";var t=e("renderer","canvas");t.prototype.drawPolygonPath=function(e,t,i,r,n,a){var o=r/2,s=n/2;e.beginPath&&e.beginPath(),e.moveTo(t+o*a[0],i+s*a[1]);for(var l=1;l0&&a>0)if(l.clearRect(0,0,n,a),e.bg&&(l.fillStyle=e.bg,l.rect(0,0,n,a),l.fill()),l.globalCompositeOperation="source-over",e.full)this.redraw({forcedContext:l,drawAllLayers:!0,forcedZoom:o,forcedPan:{x:-r.x1*o,y:-r.y1*o},forcedPxRatio:1});else{var u=i.pan(),c={x:u.x*o,y:u.y*o},d=i.zoom()*o;this.redraw({forcedContext:l,drawAllLayers:!0,forcedZoom:d,forcedPan:c,forcedPxRatio:1})}return s},t.prototype.png=function(e){return this.bufferCanvasImage(e).toDataURL("image/png")}}(cytoscape),function(e){"use strict";var t=e("renderer","canvas");t.prototype.registerBinding=function(e,t,i,r){this.bindings.push({target:e,event:t,handler:i,useCapture:r}),e.addEventListener(t,i,r)},t.prototype.nodeIsDraggable=function(e){return 0!==e._private.style.opacity.value&&"visible"==e._private.style.visibility.value&&"element"==e._private.style.display.value&&!e.locked()&&e.grabbable()?!0:!1},t.prototype.load=function(){var i=this,r=function(e){var t;if(e.addToList&&i.data.cy.hasCompoundNodes()){if(!e.addToList.hasId){e.addToList.hasId={};for(var r=0;rs[0]&&r.clientXs[1]&&r.clientY=t.panOrBoxSelectDelay)&&Math.abs(v[3]-v[1])+Math.abs(v[2]-v[0])<4&&p.panningEnabled()&&p.userPanningEnabled())i.hoverData.dragging=!0,v[4]=0;else{if(p.boxSelectionEnabled()&&Math.pow(v[2]-v[0],2)+Math.pow(v[3]-v[1],2)>7&&v[4]&&(clearTimeout(i.bgActiveTimeout),i.data.bgActivePosistion=void 0,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0,i.redraw()),y&&y.isEdge()&&y.active()&&y.unactivate(),g!=f&&(f&&(f.trigger(new e.Event(r,{type:"mouseout",cyPosition:{x:h[0],y:h[1]}})),f.trigger(new e.Event(r,{type:"tapdragout",cyPosition:{x:h[0],y:h[1]}}))),g&&(g.trigger(new e.Event(r,{type:"mouseover",cyPosition:{x:h[0],y:h[1]}})),g.trigger(new e.Event(r,{type:"tapdragover",cyPosition:{x:h[0],y:h[1]}}))),i.hoverData.last=g),y&&y.isNode()&&i.nodeIsDraggable(y)){i.dragData.didDrag||(i.data.canvasNeedsRedraw[t.NODE]=!0),i.dragData.didDrag=!0;for(var _=[],E=0;E7&&l[4]||i.hoverData.dragging||(a.$(function(){return this.selected()}).unselect(),c.length>0&&(i.data.canvasNeedsRedraw[t.NODE]=!0),i.dragData.possibleDragElements=c=[]),null!=u?u.trigger(new e.Event(r,{type:"mouseup",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"tapend",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"vmouseup",cyPosition:{x:s[0],y:s[1]}})):null==u&&a.trigger(new e.Event(r,{type:"mouseup",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"tapend",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"vmouseup",cyPosition:{x:s[0],y:s[1]}})),Math.pow(l[2]-l[0],2)+Math.pow(l[3]-l[1],2)===0&&(null!=u?u.trigger(new e.Event(r,{type:"click",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"tap",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"vclick",cyPosition:{x:s[0],y:s[1]}})):null==u&&a.trigger(new e.Event(r,{type:"click",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"tap",cyPosition:{x:s[0],y:s[1]}})).trigger(new e.Event(r,{type:"vclick",cyPosition:{x:s[0],y:s[1]}}))),u!=d||i.dragData.didDrag||null!=u&&u._private.selectable&&("additive"===a.selectionType()||p?u.selected()?u.unselect():u.select():p||(a.$(":selected").not(u).unselect(),u.select()),i.data.canvasNeedsRedraw[t.NODE]=!0),a.boxSelectionEnabled()&&Math.pow(l[2]-l[0],2)+Math.pow(l[3]-l[1],2)>7&&l[4]){var g=[],f=i.getAllInBox(l[0],l[1],l[2],l[3]);i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0,f.length>0&&(i.data.canvasNeedsRedraw[t.NODE]=!0);for(var y=0;y=0&&b>=d&&h>=0&&b>=h&&p>=0&&w>=p&&v>=0&&w>=v;var k=n.pan(),C=n.zoom();if(g=E(d,p,h,v),f=[(d+h)/2,(p+v)/2],y=[(f[0]-k.x)/C,(f[1]-k.y)/C],200>g&&!r.touches[2]){var D=i.findNearestElement(l[0],l[1],!0),N=i.findNearestElement(l[2],l[3],!0);return D&&D.isNode()?(D.activate().trigger(new e.Event(r,{type:"cxttapstart",cyPosition:{x:l[0],y:l[1]}})),i.touchData.start=D):N&&N.isNode()?(N.activate().trigger(new e.Event(r,{type:"cxttapstart",cyPosition:{x:l[0],y:l[1]}})),i.touchData.start=N):(n.trigger(new e.Event(r,{type:"cxttapstart",cyPosition:{x:l[0],y:l[1]}})),i.touchData.start=null),i.touchData.start&&(i.touchData.start._private.grabbed=!1),i.touchData.cxt=!0,i.touchData.cxtDragged=!1,i.data.bgActivePosistion=void 0,void i.redraw()}}if(r.touches[2]);else if(r.touches[1]);else if(r.touches[0]){var T=i.findNearestElement(l[0],l[1],!0);if(null!=T){if(T.activate(),i.touchData.start=T,T.isNode()&&i.nodeIsDraggable(T)){var M=i.dragData.touchDragEles=[];if(i.data.canvasNeedsRedraw[t.NODE]=!0,i.data.canvasNeedsRedraw[t.DRAG]=!0,T.selected())for(var B=n.$(function(){return this.isNode()&&this.selected()}),z=0;z250&&(i.touchData.start?i.touchData.start.trigger(new e.Event(r,{type:"taphold",cyPosition:{x:l[0],y:l[1]}})):(i.data.cy.trigger(new e.Event(r,{type:"taphold",cyPosition:{x:l[0],y:l[1]}})),n.$(":selected").unselect()))},1e3)}},!1),i.registerBinding(window,"touchmove",e.util.throttle(function(r){var n=i.data.select,o=i.touchData.capture;o&&r.preventDefault();var s=i.data.cy,l=i.touchData.now,u=i.touchData.earlier;if(r.touches[0]){var c=i.projectIntoViewport(r.touches[0].clientX,r.touches[0].clientY);l[0]=c[0],l[1]=c[1]}if(r.touches[1]){var c=i.projectIntoViewport(r.touches[1].clientX,r.touches[1].clientY);l[2]=c[0],l[3]=c[1]}if(r.touches[2]){var c=i.projectIntoViewport(r.touches[2].clientX,r.touches[2].clientY);l[4]=c[0],l[5]=c[1]}for(var f=[],b=0;b=1.5||C>=150){i.touchData.cxt=!1,i.touchData.start&&(i.touchData.start.unactivate(),i.touchData.start=null),i.data.bgActivePosistion=void 0,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0;var N=new e.Event(r,{type:"cxttapend",cyPosition:{x:l[0],y:l[1]}});i.touchData.start?i.touchData.start.trigger(N):s.trigger(N)}}if(o&&i.touchData.cxt){var N=new e.Event(r,{type:"cxtdrag",cyPosition:{x:l[0],y:l[1]}});i.data.bgActivePosistion=void 0,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0,i.touchData.start?i.touchData.start.trigger(N):s.trigger(N),i.touchData.start&&(i.touchData.start._private.grabbed=!1),i.touchData.cxtDragged=!0;var T=i.findNearestElement(l[0],l[1],!0);i.touchData.cxtOver&&T===i.touchData.cxtOver||(i.touchData.cxtOver&&i.touchData.cxtOver.trigger(new e.Event(r,{type:"cxtdragout",cyPosition:{x:l[0],y:l[1]}})),i.touchData.cxtOver=T,T&&T.trigger(new e.Event(r,{type:"cxtdragover",cyPosition:{x:l[0],y:l[1]}})))}else if(o&&r.touches[2]&&s.boxSelectionEnabled())i.data.bgActivePosistion=void 0,clearTimeout(this.threeFingerSelectTimeout),this.lastThreeTouch=+new Date,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0,n&&0!==n.length&&void 0!==n[0]?(n[2]=(l[0]+l[2]+l[4])/3,n[3]=(l[1]+l[3]+l[5])/3):(n[0]=(l[0]+l[2]+l[4])/3,n[1]=(l[1]+l[3]+l[5])/3,n[2]=(l[0]+l[2]+l[4])/3+1,n[3]=(l[1]+l[3]+l[5])/3+1),n[4]=1,i.redraw();else if(o&&r.touches[1]&&s.zoomingEnabled()&&s.panningEnabled()&&s.userZoomingEnabled()&&s.userPanningEnabled()){i.data.bgActivePosistion=void 0,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0;var M=i.dragData.touchDragEles;if(M){i.data.canvasNeedsRedraw[t.DRAG]=!0;for(var B=0;B4&&(i.touchData.singleTouchMoved=!0);if(o&&(null==W||W.isEdge())&&s.panningEnabled()&&s.userPanningEnabled()){W&&(W.unactivate(),i.data.bgActivePosistion||(i.data.bgActivePosistion={x:l[0],y:l[1]}),i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0,i.touchData.start=null),s.panBy({x:f[0]*s.zoom(),y:f[1]*s.zoom()}),i.swipePanning=!0;var c=i.projectIntoViewport(r.touches[0].clientX,r.touches[0].clientY);l[0]=c[0],l[1]=c[1]}}for(var b=0;b0?i.data.canvasNeedsRedraw[t.NODE]=!0:i.redraw()}r.touches.length<2&&(i.pinching=!1,i.data.canvasNeedsRedraw[t.NODE]=!0,i.redraw());var m=!1;if(null!=n&&(n._private.active=!1,m=!0,n.unactivate()),r.touches[2])i.data.bgActivePosistion=void 0,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0;else if(r.touches[1]);else if(r.touches[0]);else if(!r.touches[0]){if(i.data.bgActivePosistion=void 0,i.data.canvasNeedsRedraw[t.SELECT_BOX]=!0,null!=n){n._private.grabbed&&(n._private.grabbed=!1,n.trigger("free"),n._private.rscratch.inDragLayer=!1);for(var x=n._private.edges,b=0;bc;c++)d[4*c]=p[2*c],d[4*c+1]=p[2*c+1],d[4*c+2]=h[2*c],d[4*c+3]=h[2*c+1];d=e.math.fitPolygonToSquare(d),n.star5=n.star={points:d,draw:function(e,t,r,a,o){i.drawPolygon(e,t,r,a,o,n.star5.points)},drawPath:function(e,t,r,a,o){i.drawPolygonPath(e,t,r,a,o,n.star5.points)},intersectLine:function(e,t,r,a,o,s,l){return i.polygonIntersectLine(o,s,n.star5.points,e,t,r/2,a/2,l)},intersectBox:function(e,t,r,a,o,s,l,u,c){var d=n.star5.points;return i.boxIntersectPolygon(e,t,r,a,d,o,s,l,u,[0,-1],c)},checkPoint:function(t,i,r,a,o,s,l){return e.math.pointInsidePolygon(t,i,n.star5.points,s,l,a,o,[0,-1],r)}}}(cytoscape),function(e){"use strict";function t(t){this._private={},this._private.options=e.util.extend({},i,t)}var i={animate:!0,maxSimulationTime:4e3,fit:!0,padding:30,boundingBox:void 0,ungrabifyWhileSimulating:!1,ready:void 0,stop:void 0,repulsion:void 0,stiffness:void 0,friction:void 0,gravity:!0,fps:void 0,precision:void 0,nodeMass:void 0,edgeLength:void 0,stepSize:.1,stableEnergy:function(e){var t=e;return t.max<=.5||t.mean<=.3},infinite:!1};t.prototype.run=function(){var t=this,i=this._private.options;return e.util.require("arbor",function(r){function n(e,t){return null==t?void 0:"function"==typeof t?t.apply(e,[e._private.data,{nodes:u.length,edges:c.length,element:e}]):t}function a(e){if(!e.isFullAutoParent()){var t=e._private.data.id,r=n(e,i.nodeMass),a=e._private.locked,o=e.position(),s=h.fromScreen({x:o.x,y:o.y});e.scratch().arbor=h.addNode(t,{element:e,mass:r,fixed:a,x:a?s.x:void 0,y:a?s.y:void 0})}}function o(e){var t=e.source().id(),r=e.target().id(),a=n(e,i.edgeLength);e.scratch().arbor=h.addEdge(t,r,{length:a})}var s=i.cy,l=i.eles,u=l.nodes().not(":parent"),c=l.edges(),d=e.util.makeBoundingBox(i.boundingBox?i.boundingBox:{x1:0,y1:0,w:s.width(),h:s.height()}),p=!1;if(t.trigger({type:"layoutstart",layout:t}),void 0!==i.liveUpdate&&(i.animate=i.liveUpdate),s.nodes().size()<=1)return i.fit&&s.reset(),s.nodes().position({x:Math.round((d.x1+d.x2)/2),y:Math.round((d.y1+d.y2)/2)}),t.one("layoutready",i.ready),t.trigger({type:"layoutready",layout:t}),t.one("layoutstop",i.stop),void t.trigger({type:"layoutstop",layout:t});var h=t._private.system=r.ParticleSystem();h.parameters({repulsion:i.repulsion,stiffness:i.stiffness,friction:i.friction,gravity:i.gravity,fps:i.fps,dt:i.dt,precision:i.precision}),i.animate&&i.fit&&s.fit(d,i.padding);var v,g=250,f=!1,y=+new Date,m={init:function(){},redraw:function(){var e=h.energy();if(!i.infinite&&null!=i.stableEnergy&&null!=e&&e.n>0&&i.stableEnergy(e))return void t.stop();i.infinite||1/0==g||(clearTimeout(v),v=setTimeout(P,g));var r=s.collection();h.eachNode(function(e,t){var i=e.data,n=i.element;null!=n&&(n.locked()||n.grabbed()||(n.silentPosition({x:d.x1+t.x,y:d.y1+t.y}),r.merge(n)))}),i.animate&&r.length>0&&(p=!0,r.rtrigger("position"),i.fit&&s.fit(i.padding),y=+new Date,p=!1),f||(f=!0,t.one("layoutready",i.ready),t.trigger({type:"layoutready",layout:t}))}};h.renderer=m,h.screenSize(d.w,d.h),h.screenPadding(i.padding,i.padding,i.padding,i.padding),h.screenStep(i.stepSize);var x;u.on("grab free position",x=function(e){if(!p){var t=this.position(),n=h.fromScreen(t);if(n){var a=r.Point(n.x,n.y),o=i.padding;switch(d.x1+o<=t.x&&t.x<=d.x2-o&&d.y1+o<=t.y&&t.y<=d.y2-o&&(this.scratch().arbor.p=a),e.type){case"grab":this.scratch().arbor.fixed=!0;break;case"free":this.scratch().arbor.fixed=!1}}}});var b;u.on("lock unlock",b=function(){node.scratch().arbor.fixed=node.locked()});var w;l.on("remove",w=function(){});var _;s.on("add","*",_=function(){});var E;s.on("resize",E=function(){if(null==i.boundingBox&&null!=t._private.system){var e=s.width(),r=s.height();h.screenSize(e,r)}}),u.each(function(e,t){a(t)}),c.each(function(e,t){o(t)});var S=u.filter(":grabbable");i.ungrabifyWhileSimulating&&S.ungrabify();var P=t._private.doneHandler=function(){t._private.doneHandler=null,i.animate||(i.fit&&s.reset(),u.rtrigger("position")),u.off("grab free position",x),u.off("lock unlock",b),l.off("remove",w),s.off("add","*",_),s.off("resize",E),i.ungrabifyWhileSimulating&&S.grabify(),t.one("layoutstop",i.stop),t.trigger({type:"layoutstop",layout:t})};h.start(),!i.infinite&&null!=i.maxSimulationTime&&i.maxSimulationTime>0&&1/0!==i.maxSimulationTime&&setTimeout(function(){t.stop()},i.maxSimulationTime)}),this},t.prototype.stop=function(){return null!=this._private.system&&this._private.system.stop(),this._private.doneHandler&&this._private.doneHandler(),this},e("layout","arbor",t)}(cytoscape),function(e){"use strict";function t(t){this.options=e.util.extend({},i,t)}var i={fit:!0,directed:!1,padding:30,circle:!1,boundingBox:void 0,avoidOverlap:!0,roots:void 0,maximalAdjustments:0,animate:!1,animationDuration:500,ready:void 0,stop:void 0};t.prototype.run=function(){var t,i=this.options,r=i,n=i.cy,a=r.eles,o=a.nodes().not(":parent"),s=a,l=e.util.makeBoundingBox(r.boundingBox?r.boundingBox:{x1:0,y1:0,w:n.width(),h:n.height()});if(e.is.elementOrCollection(r.roots))t=r.roots;else if(e.is.array(r.roots)){for(var u=[],c=0;c0;){var g=n.collection();a.bfs({roots:v[0],visit:function(e,t,i){g=g.add(i)},directed:!1}),v=v.not(g),h.push(g)}t=n.collection();for(var c=0;cC;){for(var D=P.shift(),N=D.neighborhood().nodes(),T=!1,c=0;cc;c++)for(var M=x[c],R=M.length,X=0;R>X;X++){var p=M[X],V=p._private.scratch.breadthfirst,Y=z(p);Y&&(V.intEle=Y,O.push(p))}for(var c=0;cx.length-1;)x.push([]);x[q].push(p),V.depth=q,V.index=x[q].length-1}B()}var F=0;if(r.avoidOverlap){for(var c=0;cl||0===t)&&(r+=s/u,n++)}return n=Math.max(1,n),r/=n,0===n&&(r=void 0),H[e.id()]=r,r
+},Z=function(e,t){var i=$(e),r=$(t);return i-r},U=0;3>U;U++){for(var c=0;c0&&x[0].length<=3?c/2:0),f=2*Math.PI/x[n].length*a;return 0===n&&1===x[0].length&&(g=1),{x:K.x+g*Math.cos(f),y:K.y+g*Math.sin(f)}}return{x:K.x+(a+1-(o+1)/2)*s,y:(n+1)*u}},Q={},c=x.length-1;c>=0;c--)for(var M=x[c],X=0;X1&&r.avoidOverlap){d*=1.75;var c=2*Math.PI/o.length,g=Math.cos(c)-Math.cos(0),f=Math.sin(c)-Math.sin(0),y=Math.sqrt(d*d/(g*g+f*f));t=Math.max(y,t)}var m=function(){var e=t*Math.cos(u),i=t*Math.sin(u),n={x:l.x+e,y:l.y+i};return u=r.counterclockwise?u-c:u+c,n};return o.layoutPositions(this,r,m),this},e("layout","circle",t)}(cytoscape),function(e){"use strict";function t(t){this.options=e.util.extend(!0,{},i,t)}var i={animate:!0,refresh:1,maxSimulationTime:4e3,ungrabifyWhileSimulating:!1,fit:!0,padding:30,boundingBox:void 0,ready:function(){},stop:function(){},randomize:!1,avoidOverlap:!0,handleDisconnected:!0,nodeSpacing:function(){return 10},flow:void 0,alignment:void 0,edgeLength:void 0,edgeSymDiffLength:void 0,edgeJaccardLength:void 0,unconstrIter:void 0,userConstIter:void 0,allConstIter:void 0,infinite:!1};t.prototype.run=function(){var t=this,i=this.options;return e.util.require("cola",function(r){var n=i.cy,a=i.eles,o=a.nodes(),s=a.edges(),l=!1,u=e.util.makeBoundingBox(i.boundingBox?i.boundingBox:{x1:0,y1:0,w:n.width(),h:n.height()}),c=function(t,i){if(e.is.fn(t)){var r=t;return r.apply(i,[i])}return t},d=function(){for(var e={min:1/0,max:-1/0},t={min:1/0,max:-1/0},r=0;ri&&!e;i++)e=e||n();return e};if(i.animate){var o=function(){a()||e.util.requestAnimationFrame(o)};e.util.requestAnimationFrame(o)}else for(;!n(););},on:function(){},drag:function(){}});t.adaptor=f;var y=o.filter(":grabbable");i.ungrabifyWhileSimulating&&y.ungrabify();var m;o.on("grab free position",m=function(t){var i=this,r=i._private.scratch.cola,n=i._private.position;switch(i.grabbed()?(r.x=n.x-u.x1,r.y=n.y-u.y1,f.dragstart(r)):e.is.number(r.x)&&e.is.number(r.y)&&(n.x=r.x+u.x1,n.y=r.y+u.y1),t.type){case"grab":f.dragstart(r),f.resume();break;case"free":f.dragend(r)}});var x;o.on("lock unlock",x=function(){var e=this,t=e._private.scratch.cola;e.locked()?f.dragstart(t):f.dragend(t)});var b=o.stdFilter(function(e){return!e.isParent()});if(f.nodes(b.map(function(e,t){var r=c(i.nodeSpacing,e),n=e.position(),a=e._private.scratch.cola={x:i.randomize?Math.round(Math.random()*u.w):n.x,y:i.randomize?Math.round(Math.random()*u.h):n.y,width:e.outerWidth()+2*r,height:e.outerHeight()+2*r,index:t};return a})),i.alignment){var w=[],_=[];b.forEach(function(e){var t=c(i.alignment,e),r=e._private.scratch.cola,n=r.index;t&&(null!=t.x&&w.push({node:n,offset:t.x}),null!=t.y&&_.push({node:n,offset:t.y}))});var E=[];w.length>0&&E.push({type:"alignment",axis:"x",offsets:w}),_.length>0&&E.push({type:"alignment",axis:"y",offsets:_}),f.constraints(E)}f.groups(o.stdFilter(function(e){return e.isParent()}).map(function(e,t){return e._private.scratch.cola={index:t,leaves:e.children().stdFilter(function(e){return!e.isParent()}).map(function(e){return e[0]._private.scratch.cola.index})},e}).map(function(e){return e._private.scratch.cola.groups=e.children().stdFilter(function(e){return e.isParent()}).map(function(e){return e._private.scratch.cola.index}),e._private.scratch.cola}));var S,P;null!=i.edgeLength?(S=i.edgeLength,P="linkDistance"):null!=i.edgeSymDiffLength?(S=i.edgeSymDiffLength,P="symmetricDiffLinkLengths"):null!=i.edgeJaccardLength?(S=i.edgeJaccardLength,P="jaccardLinkLengths"):(S=100,P="linkDistance");var k=function(e){return e.calcLength};if(f.links(s.stdFilter(function(e){return!e.source().isParent()&&!e.target().isParent()}).map(function(e){var t=e._private.scratch.cola={source:e.source()[0]._private.scratch.cola.index,target:e.target()[0]._private.scratch.cola.index};return null!=S&&(t.calcLength=c(S,e)),t})),f.size([u.w,u.h]),null!=S&&f[P](k),i.flow){var C,D="y",N=50;e.is.string(i.flow)?C={axis:i.flow,minSeparation:N}:e.is.number(i.flow)?C={axis:D,minSeparation:i.flow}:e.is.plainObject(i.flow)?(C=i.flow,C.axis=C.axis||D,C.minSeparation=null!=C.minSeparation?C.minSeparation:N):C={axis:D,minSeparation:N},f.flowLayout(C.axis,C.minSeparation)}f.avoidOverlaps(i.avoidOverlap).handleDisconnected(i.handleDisconnected).start(i.unconstrIter,i.userConstIter,i.allConstIter),t.trigger({type:"layoutstart",layout:t}),i.infinite||setTimeout(function(){f.stop()},i.maxSimulationTime)}),this},t.prototype.stop=function(){return this.adaptor&&(this.manuallyStopped=!0,this.adaptor.stop()),this},e("layout","cola",t)}(cytoscape),function(e){"use strict";function t(t){this.options=e.util.extend({},i,t)}var i={fit:!0,padding:30,startAngle:1.5*Math.PI,counterclockwise:!1,minNodeSpacing:10,boundingBox:void 0,avoidOverlap:!0,height:void 0,width:void 0,concentric:function(){return this.degree()},levelWidth:function(e){return e.maxDegree()/4},animate:!1,animationDuration:500,ready:void 0,stop:void 0};t.prototype.run=function(){for(var t=this.options,i=t,r=t.cy,n=i.eles,a=n.nodes().not(":parent"),o=e.util.makeBoundingBox(i.boundingBox?i.boundingBox:{x1:0,y1:0,w:r.width(),h:r.height()}),s={x:o.x1+o.w/2,y:o.y1+o.h/2},l=[],u=i.startAngle,c=0,d=0;d0){var m=Math.abs(f[0].value-y.value);m>=v&&(f=[],g.push(f))}f.push(y)}var x={},b=0,w=c+i.minNodeSpacing;if(!i.avoidOverlap){var _=g.length>0&&g[0].length>1,E=Math.min(o.w,o.h)/2-w,S=E/(g.length+_?1:0);w=Math.min(w,S)}for(var d=0;d1&&i.avoidOverlap){var C=Math.cos(k)-Math.cos(0),D=Math.sin(k)-Math.sin(0),N=Math.sqrt(w*w/(C*C+D*D));b=Math.max(N,b)}for(var T=0;T=d;){var f=c[d++],y=s.idToIndex[f],m=s.layoutNodes[y],x=m.children;if(x.length>0){s.graphSet.push(x);for(var l=0;lr.count?0:r.graph},o=function(e,t,i,r){var n=r.graphSet[i];if(-1<$.inArray(e,n)&&-1<$.inArray(t,n))return{count:2,graph:i};for(var a=0,s=0;ss;s++)for(var l=e.layoutNodes[e.idToIndex[a[s]]],u=s+1;o>u;u++){var c=e.layoutNodes[e.idToIndex[a[u]]];p(l,c,e,t,i)}}},p=function(e,t,i,r,n){var a="Node repulsion. Node1: "+e.id+" Node2: "+t.id,o=t.positionX-e.positionX,s=t.positionY-e.positionY;if(a+="\ndirectionX: "+o+", directionY: "+s,0===o&&0===s)return void(a+="\nNodes have the same position.");var l=v(e,t,o,s);if(l>0){a+="\nNodes DO overlap.",a+="\nOverlap: "+l;var u=n.nodeOverlap*l,c=Math.sqrt(o*o+s*s);a+="\nDistance: "+c;var d=u*o/c,p=u*s/c}else{a+="\nNodes do NOT overlap.";var g=h(e,o,s),f=h(t,-1*o,-1*s),y=f.x-g.x,m=f.y-g.y,x=y*y+m*m,c=Math.sqrt(x);a+="\nDistance: "+c;var u=n.nodeRepulsion/x,d=u*y/c,p=u*m/c}e.offsetX-=d,e.offsetY-=p,t.offsetX+=d,t.offsetY+=p,a+="\nForceX: "+d+" ForceY: "+p,w(a)},h=function(e,t,i){var r=e.positionX,n=e.positionY,a=e.height,o=e.width,s=i/t,l=a/o,u="Computing clipping point of node "+e.id+" . Height: "+a+", Width: "+o+"\nDirection "+t+", "+i,c={};do{if(0===t&&i>0){c.x=r,u+="\nUp direction",c.y=n+a/2;break}if(0===t&&0>i){c.x=r,c.y=n+a/2,u+="\nDown direction";break}if(t>0&&s>=-1*l&&l>=s){c.x=r+o/2,c.y=n+o*i/2/t,u+="\nRightborder";break}if(0>t&&s>=-1*l&&l>=s){c.x=r-o/2,c.y=n-o*i/2/t,u+="\nLeftborder";break}if(i>0&&(-1*l>=s||s>=l)){c.x=r+a*t/2/i,c.y=n+a/2,u+="\nTop border";break}if(0>i&&(-1*l>=s||s>=l)){c.x=r-a*t/2/i,c.y=n-a/2,u+="\nBottom border";break}}while(!1);return u+="\nClipping point found at "+c.x+", "+c.y,w(u),c},v=function(e,t,i,r){if(i>0)var n=e.maxX-t.minX;else var n=t.maxX-e.minX;if(r>0)var a=e.maxY-t.minY;else var a=t.maxY-e.minY;return n>=0&&a>=0?Math.sqrt(n*n+a*a):0},g=function(e,t,i){for(var r=0;rd;d++){var p=e.layoutNodes[e.idToIndex[a[d]]];r="Node: "+p.id;var h=s-p.positionX,v=l-p.positionY,g=Math.sqrt(h*h+v*v);if(g>1){var f=i.gravity*h/g,y=i.gravity*v/g;p.offsetX+=f,p.offsetY+=y,r+=": Applied force: "+f+", "+y}else r+=": skypped since it's too close to center";w(r)}}},y=function(e){var t=[],i=0,r=-1;for(w("propagateForces"),t.push.apply(t,e.graphSet[0]),r+=e.graphSet[0].length;r>=i;){var n=t[i++],a=e.idToIndex[n],o=e.layoutNodes[a],s=o.children;if(0i)var a={x:i*e/n,y:i*t/n};else var a={x:e,y:t};return r+=".\nResult: ("+a.x+", "+a.y+")",w(r),a},b=function(e,t){var i="Propagating new position/size of node "+e.id,r=e.parentId;if(null==r)return i+=". No parent node.",void w(i);var n=t.layoutNodes[t.idToIndex[r]],a=!1;return(null==n.maxX||e.maxX+n.padRight>n.maxX)&&(n.maxX=e.maxX+n.padRight,a=!0,i+="\nNew maxX for parent node "+n.id+": "+n.maxX),(null==n.minX||e.minX-n.padLeftn.maxY)&&(n.maxY=e.maxY+n.padBottom,a=!0,i+="\nNew maxY for parent node "+n.id+": "+n.maxY),(null==n.minY||e.minY-n.padTops){var h=d(),v=p();(h-1)*v>=s?d(h-1):(v-1)*h>=s&&p(v-1)}else for(;s>c*u;){var h=d(),v=p();(v+1)*h>=s?p(v+1):d(h+1)}var g=o.w/c,f=o.h/u;if(i.avoidOverlap)for(var y=0;y=c&&(P=0,S++)},C={},y=0;y0&&r.animate&&(s=!0,m.rtrigger("position"),r.fit&&l.fit(r.padding),m=l.collection(),s=!1)},function(){},function(e,i){var n=f(i),a=e.data.element;a.locked()||a.grabbed()||(a._private.position={x:n.x,y:n.y},m.merge(a)),b==x&&(t.one("layoutready",r.ready),t.trigger({type:"layoutready",layout:t})),b++});c.each(function(e,t){r.random||a(t)});var _;c.on("position",_=function(){s||a(this)});var E=c.filter(":grabbable");i.stopSystem=function(){h.filterNodes(function(){return!1}),r.ungrabifyWhileSimulating&&E.grabify(),r.fit&&l.fit(r.padding),c.off("drag position",_),t.one("layoutstop",r.stop),t.trigger({type:"layoutstop",layout:t}),i.stopSystem=null},o(),r.infinite||setTimeout(function(){i.stop()},r.maxSimulationTime)}),this},t.prototype.stop=function(){return null!=this.stopSystem&&this.stopSystem(),this},e("layout","springy",t)}(cytoscape),function(e){"use strict";function t(e){this.options=e}t.prototype.recalculateRenderedStyle=function(){},t.prototype.notify=function(){},e("renderer","null",t)}(cytoscape);
\ No newline at end of file
diff --git a/ajax/libs/cytoscape/package.json b/ajax/libs/cytoscape/package.json
index 08aba6173..82a4636cc 100644
--- a/ajax/libs/cytoscape/package.json
+++ b/ajax/libs/cytoscape/package.json
@@ -9,7 +9,7 @@
]
}
],
- "version": "2.3.3",
+ "version": "2.3.4",
"filename": "cytoscape.min.js",
"description": "A JavaScript graph library for analysis and visualisation",
"homepage": "http://cytoscape.github.io/cytoscape.js",