DIR : /home/kozerus/public_html/jsdoit_queue_best.html /home/kozerus/public_html <!DOCTYPE html> <html> <head> <title>/jsdoit_queue.html 20200505_1100</title>    <style id="style_queue_shared" > body { margin: 3em auto; padding: 0; background-color: #eaebee; font-family: Arial, Verdana, sans-serif; font-size: 14px; font-weight: normal; color: #333; line-height: 1.4em; } a:link, a:visited { color: #39f; text-decoration: none; } a:hover { text-decoration: underline; } h1, h2 { color: #FFF; font-size: 1.6em; margin-bottom: 0; padding: 1.5em; padding-bottom: 1.2em; background: #374252; text-transform: uppercase; } h1::after { display: block; content: ""; background: url('../art/logo_createjs.svg') no-repeat; height:1.5em; width: 6em; margin-top: -0.3em; float: right; } h1 em { font-weight: 200; font-style: normal; } h2 { font-size: 1.3em; padding: 1em; padding-bottom: 0.8em; } h3 { background: #e0e1e5; color: #374252; font-size: 1.25em; padding: 0.5em; margin-top: 1.25em; margin-bottom: -0.5em; position: relative; } code { color: black; background-color: rgba(255, 230, 0, 0.33); padding: 1px 3px; font-family: Courier New, Courier, serif; font-weight: bold; } </style> <style id="style_queue" > body { width: 960px; } header { margin-bottom: 1rem; width: 960px; } h1 { font-weight: 200; margin-bottom: 1rem; } h1:before { content:"PRELOADJS "; font-weight: bold; } header p { margin: 0; padding: 1em; background: rgba(250, 252, 255, 0.7); } .content, canvas { background: white; } .content { width: 960px; height: 400px; overflow: hidden; padding: 1em; box-sizing: border-box; } .loading { position: relative; } .loading:after { content: url("../art/loading.gif"); position: absolute; left: 50%; top: 50%; margin: -13px 0 0 -51px; opacity: 0.8; } #error, #mobile { width: 960px; height: 400px; display:none; text-align: left; padding: 1em; } body.embedded header { display: none; } body.embedded { margin: 0; } </style> <script id="script_queue" > /** * Very minimal shared code for examples. */ (function() { if (document.body) { setupEmbed(); } else { document.addEventListener("DOMContentLoaded", setupEmbed); } function setupEmbed() { if (window.top != window) { document.body.className += " embedded"; } } var o = window.examples = {}; o.showDistractor = function(id) { var div = id ? document.getElementById(id) : document.querySelector("div canvas").parentNode; div.className += " loading"; }; o.hideDistractor = function() { var div = document.querySelector(".loading"); div.className = div.className.replace(/\bloading\b/); }; })(); </script> <style type="text/css"> body{ overflow-y:scroll; } #template { display: none; } #mainProgress { width: auto; height: 20px; float: none; position: relative; } #mainProgress LABEL { position: absolute; } .item { height: 170px; width: 226px; border: 1px solid #eee; background-color: #ddd; padding: 2px; float: left; position: relative; text-align: center; } .item .progress { width: 0; height: 20px; background-color: #9c9; bottom: 0; } .complete { } .error { background-color: #FAA; } .complete DIV, .error DIV { display: none; } </style> <script id="script_jtfdcr_imgs"> function jtfdcr(args) { alert( "BUGS_102 jtfdcr args="+args ); var kolists = new Array; kolists['jtfdcr'] = ` /fb/jtfdcr/pages/2751MR0144230271201284C00_DXXX_.jpg /fb/jtfdcr/pages/AUT_0870.jpg /fb/jtfdcr/pages/AUT_1342.jpg /fb/jtfdcr/pages/AUT_1593.jpg /fb/jtfdcr/pages/columbia_pw_adminiwii_ko2us.jpg /fb/jtfdcr/pages/community_police.jpg /fb/jtfdcr/pages/defford_boat.jpg /fb/jtfdcr/pages/donutvanlaw_but_wiis_still_here_300.jpg /fb/jtfdcr/pages/donutvanlaw_takings_all_took.jpg /fb/jtfdcr/pages/jtfdc_enter_jtf31_streetswing_n_eagle.jpg /fb/jtfdcr/pages/jtfdc_jtf30_located_on_private_cul_de_sac_IMG_9425.jpg /fb/jtfdcr/pages/jtfdc_jtf31_takingIMG_8543.jpg /fb/jtfdcr/pages/jtfdc_kouIMG_8561.jpg /fb/jtfdcr/pages/jtfdc_sawhorse_winter.jpg /fb/jtfdcr/pages/jtfdc_sawhorsey_flag_ngoIMG_9386_20190527_memorialday_flag.jpg /fb/jtfdcr/pages/jtfdc_skyview.jpg /fb/jtfdcr/pages/jtfdc_stalkaround_gannon.jpg /fb/jtfdcr/pages/ladyj_clingyclothes.jpg /fb/jtfdcr/pages/scale_flag.jpg /fb/jtfdcr/pages/scale_gavel_book.jpg /fb/jtfdcr/pages/scale_icon.jpg /fb/jtfdcr/pages/snap_20170123_187555.jpg /fb/jtfdcr/pages/snap_20170123_187556_jtf29_jtf38-39_byrd_segrist_tresspass_dog_assault.jpg /fb/jtfdcr/pages/snap_20170123_187561_jtf29_jtf38-39_byrd_segrist_tresspass_threats2.jpg /fb/jtfdcr/pages/snap_20170123_187562_jatf29_jtf38-29_byrd_seagrist_tresspass_trheats.jpg /fb/jtfdcr/pages/snap_20170123_187569_jtf29_ljackmow_notresspas_per_new_jtfdc_trustyelder.jpg /fb/jtfdcr/pages/snap_20170123_187575_jtf29_sawhorse_jtf31_theft.jpg /fb/jtfdcr/pages/snap_20170123_187583_jtfdc_little_garbage.jpg /fb/jtfdcr/pages/snap_20170123_187588.jpg /fb/jtfdcr/pages/snap_20170123_187589_jtf31_jtfdc_noparking_party_sighn.jpg /fb/jtfdcr/pages/snap_20170123_187593.jpg /fb/jtfdcr/pages/snap_20170123_187600.jpg /fb/jtfdcr/pages/snap_20170123_197519.jpg /fb/jtfdcr/pages/snap_20170123_197537_map_jtfinc.jpg /fb/jtfdcr/pages/snap_20170123_197539.jpg /fb/jtfdcr/pages/snap_20170123_197540.jpg /fb/jtfdcr/pages/snap_20170123_197541.jpg /fb/jtfdcr/pages/snap_20170123_197542.jpg /fb/jtfdcr/pages/snap_20170123_197545_jtf31-32_jtf29_easment.jpg /fb/jtfdcr/pages/snap_20170123_197546.jpg /fb/jtfdcr/pages/snap_20170123_197547.jpg /fb/jtfdcr/pages/snap_20170123_197548.jpg /fb/jtfdcr/pages/snap_20170123_197553.jpg /fb/jtfdcr/pages/snap_20170123_197554_jtfinc_northeast.jpg /fb/jtfdcr/pages/snap_20170123_197559.jpg /fb/jtfdcr/pages/snap_20170123_197561.jpg /fb/jtfdcr/pages/snap_20170123_197564.jpg /fb/jtfdcr/pages/snap_20170123_197565.jpg /fb/jtfdcr/pages/snap_20170123_197566.jpg /fb/jtfdcr/pages/snap_20170123_197568.jpg /fb/jtfdcr/pages/snap_20170123_197574_jtfdc_jtf2930_stlc_platt_easement_detail.jpg /fb/jtfdcr/pages/tfdc_20170731_jtf29_mailbox_not_blocked_IMG_1048.jpg /fb/jtfdcr/pages/topos_easements.jpg /fb/jtfdcr/pages/zn_donutvanlaw_takings_all_took.jpg `; // alert( "BUGS_103 jtfdcr kolists_jtfdcr=" ); // alert( "BUGS_103 jtfdcr kolists_jtfdcr="+kolists['jtfdcr'] ); list=kolists['jtfdcr'].split("\n"); // alert( "BUGS_104 jtfdcr list="+list ); htmout = ""; htmout += '<div id="div_jtfdcr">'; htmout += ' <h1>div_jtfdcr Deffords Court est 1979</h1>'; for( j=0; j<list.length; j++ ) { url=list[j]; htmout += '<a href="'+url+'" target=_blank>'; htmout += ' <img src="'+url+'" height=100 border=0 draggable="true" >'; htmout += ' </a>'; } htmout += ' </div>'; if( document.getElementById('div_jtfdcr')) { document.getElementById('div_jtfdcr').innerHTML=htmout; } alert( "BUGS_109 jtfdcr() END " ); // alert( 'BUGS_100 kolists_jtfdcr='+kolists['jtfdcr']; } </script> <script id="script_startup_queue" > function startup_queue(args) { alert( "BUGS_101 startup_queue args="+args ); init(); alert( "BUGS_102 startup_queue args="+args ); jtfdcr(args); alert( "BUGS_103 startup_queue args="+args ); } </script> </head>  <body bgcolor=wheat onload="startup_queue('')"> <h1>jtfdc_stalkarounds 20200504</h1> <hr color=white> <hr color=white> <br><br> <img id="zm_takings_all_took" src="/fb/law/jkwiiv_byrdbell/zm/donutvanlaw_takings/TileGroup0/0-0-0.jpg" onclick="window.open('/fb/law/jkwiiv_byrdbell/zm/zm_donutvanlaw_takings.html');return false;" height=100 border=0 draggable="true"> &nbsp &nbsp &nbsp &nbsp <img id="zm_img_jtf2930" src="/fb/law/jkwiiv_byrdbell/zm/jtf2930/TileGroup0/0-0-0.jpg " onclick="window.open('/fb/law/jkwiiv_byrdbell/zm/zm_jtf2930.html');return false;" height=100 border=0 draggable="true"> &nbsp &nbsp &nbsp &nbsp <img id="zm_img_hrc2011" src="/zm/hrc2011/TileGroup0/0-0-0.jpg" onclick="window.open('/zm/zm_hrc2011.html');return false;" height=100 border=0 draggable="true"> <br><br> <img src="/imgs/gif/notes/giphy_notes10.gif" alt="notes" onclick="window.open('/txt/notes.txt');return false;" height=75 border=0> &nbsp &nbsp &nbsp &nbsp <img src="/imgs/gif/notes/giphy_notes03.gif" alt="ko_saic" onclick="window.open('/txt/jtfdcr_mp4.txt');return false;" height=75 border=0> &nbsp &nbsp &nbsp &nbsp <div id="div_jtfdcr"> <h1>div_jtfdcr Deffords Court est 1979</h1> <h2>offroad - private drive - no outlet</h2> </div> <hr color=black> <hr color=black> <img src="/fb/jtfdc/pages/1.jpg" alt="fb/jtfdc" onclick="window.open('/fb/jtfdc/');return false;" height=200 border=0> &nbsp &nbsp &nbsp &nbsp <img src="/fb/jtfdcr/pages/1.jpg" alt="fb/jtfdcr" onclick="window.open('/fb/jtfdcr');return false;" height=200 border=0> &nbsp &nbsp &nbsp &nbsp <img src="/fb/jtfinc/pages/1.jpg" alt="fb/jtfdcr" onclick="window.open('/fb/jtfinc');return false;" height=100 border=0> &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp <img src="/fb/stlc/pages/1.jpg" alt="fb/stlc" onclick="window.open('/fb/stlc/');return false;" height=200 border=0> <br><br> <hr color=linen> <img src="/fb/law/tc/pages/1.jpg" alt="fb/law/tc" onclick="window.open('/fb/law/tc/');return false;" height=200 border=0> &nbsp &nbsp &nbsp &nbsp  <div id="container" class="content"> <input type="button" id="loadAnotherBtn" value="Load Another" disabled="disabled"/> <input type="button" id="loadAllBtn" value="Load All" disabled="disabled"/> <input type="button" id="reloadBtn" value="Reset"/> <div id="mainProgress" class="item"> <label>Overall Progress</label> <div class="progress"></div> </div> <hr/>  </div>  <div id="template" class="item"> <div class="progress"></div> </div>   <script id="script_preloadjs_next_combined_js" > /*! * PreloadJS * Visit http://createjs.com/ for documentation, updates and examples. * * Copyright (c) 2010 gskinner.com, inc. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ //############################################################################## // version.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; /** * Static class holding library specific information such as the version and buildDate of the library. * @class PreloadJS **/ var s = createjs.PreloadJS = createjs.PreloadJS || {}; /** * The version string for this release. * @property version * @type {String} * @static **/ s.version = /*=version*/"NEXT"; // injected by build process /** * The build date for this release in UTC format. * @property buildDate * @type {String} * @static **/ s.buildDate = /*=date*/"Fri, 02 Jan 2015 16:29:59 GMT"; // injected by build process })(); //############################################################################## // extend.js //############################################################################## this.createjs = this.createjs||{}; /** * @class Utility Methods */ /** * Sets up the prototype chain and constructor property for a new class. * * This should be called right after creating the class constructor. * * function MySubClass() {} * createjs.extend(MySubClass, MySuperClass); * ClassB.prototype.doSomething = function() { } * * var foo = new MySubClass(); * console.log(foo instanceof MySuperClass); // true * console.log(foo.prototype.constructor === MySubClass); // true * * @method extend * @param {Function} subclass The subclass. * @param {Function} superclass The superclass to extend. * @return {Function} Returns the subclass's new prototype. */ createjs.extend = function(subclass, superclass) { "use strict"; function o() { this.constructor = subclass; } o.prototype = superclass.prototype; return (subclass.prototype = new o()); }; //############################################################################## // promote.js //############################################################################## this.createjs = this.createjs||{}; /** * @class Utility Methods */ /** * Promotes any methods on the super class that were overridden, by creating an alias in the format `prefix_methodName`. * It is recommended to use the super class's name as the prefix. * An alias to the super class's constructor is always added in the format `prefix_constructor`. * This allows the subclass to call super class methods without using `function.call`, providing better performance. * * For example, if `MySubClass` extends `MySuperClass`, and both define a `draw` method, then calling `promote(MySubClass, "MySuperClass")` * would add a `MySuperClass_constructor` method to MySubClass and promote the `draw` method on `MySuperClass` to the * prototype of `MySubClass` as `MySuperClass_draw`. * * This should be called after the class's prototype is fully defined. * * function ClassA(name) { * this.name = name; * } * ClassA.prototype.greet = function() { * return "Hello "+this.name; * } * * function ClassB(name, punctuation) { * this.ClassA_constructor(name); * this.punctuation = punctuation; * } * createjs.extend(ClassB, ClassA); * ClassB.prototype.greet = function() { * return this.ClassA_greet()+this.punctuation; * } * createjs.promote(ClassB, "ClassA"); * * var foo = new ClassB("World", "!?!"); * console.log(foo.greet()); // Hello World!?! * * @method promote * @param {Function} subclass The class to promote super class methods on. * @param {String} prefix The prefix to add to the promoted method names. Usually the name of the superclass. * @return {Function} Returns the subclass. */ createjs.promote = function(subclass, prefix) { "use strict"; var subP = subclass.prototype, supP = (Object.getPrototypeOf&&Object.getPrototypeOf(subP))||subP.__proto__; if (supP) { subP[(prefix+="_") + "constructor"] = supP.constructor; // constructor is not always innumerable for (var n in supP) { if (subP.hasOwnProperty(n) && (typeof supP[n] == "function")) { subP[prefix + n] = supP[n]; } } } return subclass; }; //############################################################################## // indexOf.js //############################################################################## this.createjs = this.createjs||{}; /** * @class Utility Methods */ /** * Finds the first occurrence of a specified value searchElement in the passed in array, and returns the index of * that value. Returns -1 if value is not found. * * var i = createjs.indexOf(myArray, myElementToFind); * * @method indexOf * @param {Array} array Array to search for searchElement * @param searchElement Element to find in array. * @return {Number} The first index of searchElement in array. */ createjs.indexOf = function (array, searchElement){ "use strict"; for (var i = 0,l=array.length; i < l; i++) { if (searchElement === array[i]) { return i; } } return -1; }; //############################################################################## // proxy.js //############################################################################## this.createjs = this.createjs||{}; /** * Various utilities that the CreateJS Suite uses. Utilities are created as separate files, and will be available on the * createjs namespace directly. * * <h4>Example</h4> * * myObject.addEventListener("change", createjs.proxy(myMethod, scope)); * * @class Utility Methods * @main Utility Methods */ (function() { "use strict"; /** * A function proxy for methods. By default, JavaScript methods do not maintain scope, so passing a method as a * callback will result in the method getting called in the scope of the caller. Using a proxy ensures that the * method gets called in the correct scope. * * Additional arguments can be passed that will be applied to the function when it is called. * * <h4>Example</h4> * * myObject.addEventListener("event", createjs.proxy(myHandler, this, arg1, arg2)); * * function myHandler(arg1, arg2) { * // This gets called when myObject.myCallback is executed. * } * * @method proxy * @param {Function} method The function to call * @param {Object} scope The scope to call the method name on * @param {mixed} [arg] * Arguments that are appended to the callback for additional params. * @public * @static */ createjs.proxy = function (method, scope) { var aArgs = Array.prototype.slice.call(arguments, 2); return function () { return method.apply(scope, Array.prototype.slice.call(arguments, 0).concat(aArgs)); }; } }()); //############################################################################## // BrowserDetect.js //############################################################################## this.createjs = this.createjs||{}; /** * @class Utility Methods */ (function() { "use strict"; /** * An object that determines the current browser, version, operating system, and other environment * variables via user agent string. * * Used for audio because feature detection is unable to detect the many limitations of mobile devices. * * <h4>Example</h4> * * if (createjs.BrowserDetect.isIOS) { // do stuff } * * @property BrowserDetect * @type {Object} * @param {Boolean} isFirefox True if our browser is Firefox. * @param {Boolean} isOpera True if our browser is opera. * @param {Boolean} isChrome True if our browser is Chrome. Note that Chrome for Android returns true, but is a * completely different browser with different abilities. * @param {Boolean} isIOS True if our browser is safari for iOS devices (iPad, iPhone, and iPod). * @param {Boolean} isAndroid True if our browser is Android. * @param {Boolean} isBlackberry True if our browser is Blackberry. * @constructor * @static */ function BrowserDetect() { throw "BrowserDetect cannot be instantiated"; }; var agent = BrowserDetect.agent = window.navigator.userAgent; BrowserDetect.isWindowPhone = (agent.indexOf("IEMobile") > -1) || (agent.indexOf("Windows Phone") > -1); BrowserDetect.isFirefox = (agent.indexOf("Firefox") > -1); BrowserDetect.isOpera = (window.opera != null); BrowserDetect.isChrome = (agent.indexOf("Chrome") > -1); // NOTE that Chrome on Android returns true but is a completely different browser with different abilities BrowserDetect.isIOS = (agent.indexOf("iPod") > -1 || agent.indexOf("iPhone") > -1 || agent.indexOf("iPad") > -1) && !BrowserDetect.isWindowPhone; BrowserDetect.isAndroid = (agent.indexOf("Android") > -1) && !BrowserDetect.isWindowPhone; BrowserDetect.isBlackberry = (agent.indexOf("Blackberry") > -1); createjs.BrowserDetect = BrowserDetect; }()); //############################################################################## // Event.js //############################################################################## this.createjs = this.createjs||{}; (function() { "use strict"; // constructor: /** * Contains properties and methods shared by all events for use with * {{#crossLink "EventDispatcher"}}{{/crossLink}}. * * Note that Event objects are often reused, so you should never * rely on an event object's state outside of the call stack it was received in. * @class Event * @param {String} type The event type. * @param {Boolean} bubbles Indicates whether the event will bubble through the display list. * @param {Boolean} cancelable Indicates whether the default behaviour of this event can be cancelled. * @constructor **/ function Event(type, bubbles, cancelable) { // public properties: /** * The type of event. * @property type * @type String **/ this.type = type; /** * The object that generated an event. * @property target * @type Object * @default null * @readonly */ this.target = null; /** * The current target that a bubbling event is being dispatched from. For non-bubbling events, this will * always be the same as target. For example, if childObj.parent = parentObj, and a bubbling event * is generated from childObj, then a listener on parentObj would receive the event with * target=childObj (the original target) and currentTarget=parentObj (where the listener was added). * @property currentTarget * @type Object * @default null * @readonly */ this.currentTarget = null; /** * For bubbling events, this indicates the current event phase:<OL> * <LI> capture phase: starting from the top parent to the target</LI> * <LI> at target phase: currently being dispatched from the target</LI> * <LI> bubbling phase: from the target to the top parent</LI> * </OL> * @property eventPhase * @type Number * @default 0 * @readonly */ this.eventPhase = 0; /** * Indicates whether the event will bubble through the display list. * @property bubbles * @type Boolean * @default false * @readonly */ this.bubbles = !!bubbles; /** * Indicates whether the default behaviour of this event can be cancelled via * {{#crossLink "Event/preventDefault"}}{{/crossLink}}. This is set via the Event constructor. * @property cancelable * @type Boolean * @default false * @readonly */ this.cancelable = !!cancelable; /** * The epoch time at which this event was created. * @property timeStamp * @type Number * @default 0 * @readonly */ this.timeStamp = (new Date()).getTime(); /** * Indicates if {{#crossLink "Event/preventDefault"}}{{/crossLink}} has been called * on this event. * @property defaultPrevented * @type Boolean * @default false * @readonly */ this.defaultPrevented = false; /** * Indicates if {{#crossLink "Event/stopPropagation"}}{{/crossLink}} or * {{#crossLink "Event/stopImmediatePropagation"}}{{/crossLink}} has been called on this event. * @property propagationStopped * @type Boolean * @default false * @readonly */ this.propagationStopped = false; /** * Indicates if {{#crossLink "Event/stopImmediatePropagation"}}{{/crossLink}} has been called * on this event. * @property immediatePropagationStopped * @type Boolean * @default false * @readonly */ this.immediatePropagationStopped = false; /** * Indicates if {{#crossLink "Event/remove"}}{{/crossLink}} has been called on this event. * @property removed * @type Boolean * @default false * @readonly */ this.removed = false; } var p = Event.prototype; /** * <strong>REMOVED</strong>. Removed in favor of using `MySuperClass_constructor`. * See {{#crossLink "Utility Methods/extend"}}{{/crossLink}} and {{#crossLink "Utility Methods/promote"}}{{/crossLink}} * for details. * * There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance. * * @method initialize * @protected * @deprecated */ // p.initialize = function() {}; // searchable for devs wondering where it is. // public methods: /** * Sets {{#crossLink "Event/defaultPrevented"}}{{/crossLink}} to true. * Mirrors the DOM event standard. * @method preventDefault **/ p.preventDefault = function() { this.defaultPrevented = this.cancelable&&true; }; /** * Sets {{#crossLink "Event/propagationStopped"}}{{/crossLink}} to true. * Mirrors the DOM event standard. * @method stopPropagation **/ p.stopPropagation = function() { this.propagationStopped = true; }; /** * Sets {{#crossLink "Event/propagationStopped"}}{{/crossLink}} and * {{#crossLink "Event/immediatePropagationStopped"}}{{/crossLink}} to true. * Mirrors the DOM event standard. * @method stopImmediatePropagation **/ p.stopImmediatePropagation = function() { this.immediatePropagationStopped = this.propagationStopped = true; }; /** * Causes the active listener to be removed via removeEventListener(); * * myBtn.addEventListener("click", function(evt) { * // do stuff... * evt.remove(); // removes this listener. * }); * * @method remove **/ p.remove = function() { this.removed = true; }; /** * Returns a clone of the Event instance. * @method clone * @return {Event} a clone of the Event instance. **/ p.clone = function() { return new Event(this.type, this.bubbles, this.cancelable); }; /** * Provides a chainable shortcut method for setting a number of properties on the instance. * * @method set * @param {Object} props A generic object containing properties to copy to the instance. * @return {Event} Returns the instance the method is called on (useful for chaining calls.) * @chainable */ p.set = function(props) { for (var n in props) { this[n] = props[n]; } return this; }; /** * Returns a string representation of this object. * @method toString * @return {String} a string representation of the instance. **/ p.toString = function() { return "[Event (type="+this.type+")]"; }; createjs.Event = Event; }()); //############################################################################## // ErrorEvent.js //############################################################################## this.createjs = this.createjs||{}; (function() { "use strict"; /** * A general error {{#crossLink "Event"}}{{/crossLink}}, that describes an error that occurred, as well as any details. * @class ErrorEvent * @param {String} [title] The error title * @param {String} [message] The error description * @param {Object} [data] Additional error data * @constructor */ function ErrorEvent(title, message, data) { this.Event_constructor("error"); /** * The short error title, which indicates the type of error that occurred. * @property title * @type String */ this.title = title; /** * The verbose error message, containing details about the error. * @property message * @type String */ this.message = message; /** * Additional data attached to an error. * @property data * @type {Object} */ this.data = data; } var p = createjs.extend(ErrorEvent, createjs.Event); p.clone = function() { return new createjs.ErrorEvent(this.title, this.message, this.data); }; createjs.ErrorEvent = createjs.promote(ErrorEvent, "Event"); }()); //############################################################################## // EventDispatcher.js //############################################################################## this.createjs = this.createjs||{}; (function() { "use strict"; // constructor: /** * EventDispatcher provides methods for managing queues of event listeners and dispatching events. * * You can either extend EventDispatcher or mix its methods into an existing prototype or instance by using the * EventDispatcher {{#crossLink "EventDispatcher/initialize"}}{{/crossLink}} method. * * Together with the CreateJS Event class, EventDispatcher provides an extended event model that is based on the * DOM Level 2 event model, including addEventListener, removeEventListener, and dispatchEvent. It supports * bubbling / capture, preventDefault, stopPropagation, stopImmediatePropagation, and handleEvent. * * EventDispatcher also exposes a {{#crossLink "EventDispatcher/on"}}{{/crossLink}} method, which makes it easier * to create scoped listeners, listeners that only run once, and listeners with associated arbitrary data. The * {{#crossLink "EventDispatcher/off"}}{{/crossLink}} method is merely an alias to * {{#crossLink "EventDispatcher/removeEventListener"}}{{/crossLink}}. * * Another addition to the DOM Level 2 model is the {{#crossLink "EventDispatcher/removeAllEventListeners"}}{{/crossLink}} * method, which can be used to listeners for all events, or listeners for a specific event. The Event object also * includes a {{#crossLink "Event/remove"}}{{/crossLink}} method which removes the active listener. * * <h4>Example</h4> * Add EventDispatcher capabilities to the "MyClass" class. * * EventDispatcher.initialize(MyClass.prototype); * * Add an event (see {{#crossLink "EventDispatcher/addEventListener"}}{{/crossLink}}). * * instance.addEventListener("eventName", handlerMethod); * function handlerMethod(event) { * console.log(event.target + " Was Clicked"); * } * * <b>Maintaining proper scope</b><br /> * Scope (ie. "this") can be be a challenge with events. Using the {{#crossLink "EventDispatcher/on"}}{{/crossLink}} * method to subscribe to events simplifies this. * * instance.addEventListener("click", function(event) { * console.log(instance == this); // false, scope is ambiguous. * }); * * instance.on("click", function(event) { * console.log(instance == this); // true, "on" uses dispatcher scope by default. * }); * * If you want to use addEventListener instead, you may want to use function.bind() or a similar proxy to manage scope. * * * @class EventDispatcher * @constructor **/ function EventDispatcher() { // private properties: /** * @protected * @property _listeners * @type Object **/ this._listeners = null; /** * @protected * @property _captureListeners * @type Object **/ this._captureListeners = null; } var p = EventDispatcher.prototype; /** * <strong>REMOVED</strong>. Removed in favor of using `MySuperClass_constructor`. * See {{#crossLink "Utility Methods/extend"}}{{/crossLink}} and {{#crossLink "Utility Methods/promote"}}{{/crossLink}} * for details. * * There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance. * * @method initialize * @protected * @deprecated */ // p.initialize = function() {}; // searchable for devs wondering where it is. // static public methods: /** * Static initializer to mix EventDispatcher methods into a target object or prototype. * * EventDispatcher.initialize(MyClass.prototype); // add to the prototype of the class * EventDispatcher.initialize(myObject); // add to a specific instance * * @method initialize * @static * @param {Object} target The target object to inject EventDispatcher methods into. This can be an instance or a * prototype. **/ EventDispatcher.initialize = function(target) { target.addEventListener = p.addEventListener; target.on = p.on; target.removeEventListener = target.off = p.removeEventListener; target.removeAllEventListeners = p.removeAllEventListeners; target.hasEventListener = p.hasEventListener; target.dispatchEvent = p.dispatchEvent; target._dispatchEvent = p._dispatchEvent; target.willTrigger = p.willTrigger; }; // public methods: /** * Adds the specified event listener. Note that adding multiple listeners to the same function will result in * multiple callbacks getting fired. * * <h4>Example</h4> * * displayObject.addEventListener("click", handleClick); * function handleClick(event) { * // Click happened. * } * * @method addEventListener * @param {String} type The string type of the event. * @param {Function | Object} listener An object with a handleEvent method, or a function that will be called when * the event is dispatched. * @param {Boolean} [useCapture] For events that bubble, indicates whether to listen for the event in the capture or bubbling/target phase. * @return {Function | Object} Returns the listener for chaining or assignment. **/ p.addEventListener = function(type, listener, useCapture) { var listeners; if (useCapture) { listeners = this._captureListeners = this._captureListeners||{}; } else { listeners = this._listeners = this._listeners||{}; } var arr = listeners[type]; if (arr) { this.removeEventListener(type, listener, useCapture); } arr = listeners[type]; // remove may have deleted the array if (!arr) { listeners[type] = [listener]; } else { arr.push(listener); } return listener; }; /** * A shortcut method for using addEventListener that makes it easier to specify an execution scope, have a listener * only run once, associate arbitrary data with the listener, and remove the listener. * * This method works by creating an anonymous wrapper function and subscribing it with addEventListener. * The created anonymous function is returned for use with .removeEventListener (or .off). * * <h4>Example</h4> * * var listener = myBtn.on("click", handleClick, null, false, {count:3}); * function handleClick(evt, data) { * data.count -= 1; * console.log(this == myBtn); // true - scope defaults to the dispatcher * if (data.count == 0) { * alert("clicked 3 times!"); * myBtn.off("click", listener); * // alternately: evt.remove(); * } * } * * @method on * @param {String} type The string type of the event. * @param {Function | Object} listener An object with a handleEvent method, or a function that will be called when * the event is dispatched. * @param {Object} [scope] The scope to execute the listener in. Defaults to the dispatcher/currentTarget for function listeners, and to the listener itself for object listeners (ie. using handleEvent). * @param {Boolean} [once=false] If true, the listener will remove itself after the first time it is triggered. * @param {*} [data] Arbitrary data that will be included as the second parameter when the listener is called. * @param {Boolean} [useCapture=false] For events that bubble, indicates whether to listen for the event in the capture or bubbling/target phase. * @return {Function} Returns the anonymous function that was created and assigned as the listener. This is needed to remove the listener later using .removeEventListener. **/ p.on = function(type, listener, scope, once, data, useCapture) { if (listener.handleEvent) { scope = scope||listener; listener = listener.handleEvent; } scope = scope||this; return this.addEventListener(type, function(evt) { listener.call(scope, evt, data); once&&evt.remove(); }, useCapture); }; /** * Removes the specified event listener. * * <b>Important Note:</b> that you must pass the exact function reference used when the event was added. If a proxy * function, or function closure is used as the callback, the proxy/closure reference must be used - a new proxy or * closure will not work. * * <h4>Example</h4> * * displayObject.removeEventListener("click", handleClick); * * @method removeEventListener * @param {String} type The string type of the event. * @param {Function | Object} listener The listener function or object. * @param {Boolean} [useCapture] For events that bubble, indicates whether to listen for the event in the capture or bubbling/target phase. **/ p.removeEventListener = function(type, listener, useCapture) { var listeners = useCapture ? this._captureListeners : this._listeners; if (!listeners) { return; } var arr = listeners[type]; if (!arr) { return; } for (var i=0,l=arr.length; i<l; i++) { if (arr[i] == listener) { if (l==1) { delete(listeners[type]); } // allows for faster checks. else { arr.splice(i,1); } break; } } }; /** * A shortcut to the removeEventListener method, with the same parameters and return value. This is a companion to the * .on method. * * @method off * @param {String} type The string type of the event. * @param {Function | Object} listener The listener function or object. * @param {Boolean} [useCapture] For events that bubble, indicates whether to listen for the event in the capture or bubbling/target phase. **/ p.off = p.removeEventListener; /** * Removes all listeners for the specified type, or all listeners of all types. * * <h4>Example</h4> * * // Remove all listeners * displayObject.removeAllEventListeners(); * * // Remove all click listeners * displayObject.removeAllEventListeners("click"); * * @method removeAllEventListeners * @param {String} [type] The string type of the event. If omitted, all listeners for all types will be removed. **/ p.removeAllEventListeners = function(type) { if (!type) { this._listeners = this._captureListeners = null; } else { if (this._listeners) { delete(this._listeners[type]); } if (this._captureListeners) { delete(this._captureListeners[type]); } } }; /** * Dispatches the specified event to all listeners. * * <h4>Example</h4> * * // Use a string event * this.dispatchEvent("complete"); * * // Use an Event instance * var event = new createjs.Event("progress"); * this.dispatchEvent(event); * * @method dispatchEvent * @param {Object | String | Event} eventObj An object with a "type" property, or a string type. * While a generic object will work, it is recommended to use a CreateJS Event instance. If a string is used, * dispatchEvent will construct an Event instance with the specified type. * @return {Boolean} Returns the value of eventObj.defaultPrevented. **/ p.dispatchEvent = function(eventObj) { if (typeof eventObj == "string") { // won't bubble, so skip everything if there's no listeners: var listeners = this._listeners; if (!listeners || !listeners[eventObj]) { return false; } eventObj = new createjs.Event(eventObj); } else if (eventObj.target && eventObj.clone) { // redispatching an active event object, so clone it: eventObj = eventObj.clone(); } try { eventObj.target = this; } catch (e) {} // try/catch allows redispatching of native events if (!eventObj.bubbles || !this.parent) { this._dispatchEvent(eventObj, 2); } else { var top=this, list=[top]; while (top.parent) { list.push(top = top.parent); } var i, l=list.length; // capture & atTarget for (i=l-1; i>=0 && !eventObj.propagationStopped; i--) { list[i]._dispatchEvent(eventObj, 1+(i==0)); } // bubbling for (i=1; i<l && !eventObj.propagationStopped; i++) { list[i]._dispatchEvent(eventObj, 3); } } return eventObj.defaultPrevented; }; /** * Indicates whether there is at least one listener for the specified event type. * @method hasEventListener * @param {String} type The string type of the event. * @return {Boolean} Returns true if there is at least one listener for the specified event. **/ p.hasEventListener = function(type) { var listeners = this._listeners, captureListeners = this._captureListeners; return !!((listeners && listeners[type]) || (captureListeners && captureListeners[type])); }; /** * Indicates whether there is at least one listener for the specified event type on this object or any of its * ancestors (parent, parent's parent, etc). A return value of true indicates that if a bubbling event of the * specified type is dispatched from this object, it will trigger at least one listener. * * This is similar to {{#crossLink "EventDispatcher/hasEventListener"}}{{/crossLink}}, but it searches the entire * event flow for a listener, not just this object. * @method willTrigger * @param {String} type The string type of the event. * @return {Boolean} Returns `true` if there is at least one listener for the specified event. **/ p.willTrigger = function(type) { var o = this; while (o) { if (o.hasEventListener(type)) { return true; } o = o.parent; } return false; }; /** * @method toString * @return {String} a string representation of the instance. **/ p.toString = function() { return "[EventDispatcher]"; }; // private methods: /** * @method _dispatchEvent * @param {Object | String | Event} eventObj * @param {Object} eventPhase * @protected **/ p._dispatchEvent = function(eventObj, eventPhase) { var l, listeners = (eventPhase==1) ? this._captureListeners : this._listeners; if (eventObj && listeners) { var arr = listeners[eventObj.type]; if (!arr||!(l=arr.length)) { return; } try { eventObj.currentTarget = this; } catch (e) {} try { eventObj.eventPhase = eventPhase; } catch (e) {} eventObj.removed = false; arr = arr.slice(); // to avoid issues with items being removed or added during the dispatch for (var i=0; i<l && !eventObj.immediatePropagationStopped; i++) { var o = arr[i]; if (o.handleEvent) { o.handleEvent(eventObj); } else { o(eventObj); } if (eventObj.removed) { this.off(eventObj.type, o, eventPhase==1); eventObj.removed = false; } } } }; createjs.EventDispatcher = EventDispatcher; }()); //############################################################################## // ProgressEvent.js //############################################################################## this.createjs = this.createjs || {}; (function (scope) { "use strict"; // constructor /** * A createjs {{#crossLink "Event"}}{{/crossLink}} that is dispatched when progress changes. * @class ProgressEvent * @param {Number} loaded The amount that has been loaded. This can be any number relative to the total. * @param {Number} [total] The total amount that will load. This will default to 0, so does not need to be passed in, * as long as the loaded value is a progress value (between 0 and 1). * @todo Consider having this event be a "fileprogress" event as well * @constructor */ function ProgressEvent(loaded, total) { this.Event_constructor("progress"); /** * The amount that has been loaded (out of a total amount) * @property loaded * @type {Number} */ this.loaded = loaded; /** * The total "size" of the load. * @property total * @type {Number} * @default 1 */ this.total = (total == null) ? 1 : total; /** * The percentage (out of 1) that the load has been completed. This is calculated using `loaded/total`. * @property progress * @type {Number} * @default 0 */ this.progress = (total == 0) ? 0 : this.loaded / this.total; }; var p = createjs.extend(ProgressEvent, createjs.Event); /** * Returns a clone of the ProgressEvent instance. * @method clone * @return {ProgressEvent} a clone of the Event instance. **/ p.clone = function() { return new createjs.ProgressEvent(this.loaded, this.total); }; createjs.ProgressEvent = createjs.promote(ProgressEvent, "Event"); }(window)); //############################################################################## // json3.js //############################################################################## /*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */ ;(function () { // Detect the `define` function exposed by asynchronous module loaders. The // strict `define` check is necessary for compatibility with `r.js`. var isLoader = typeof define === "function" && define.amd; // A set of types used to distinguish objects from primitives. var objectTypes = { "function": true, "object": true }; // Detect the `exports` object exposed by CommonJS implementations. var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports; // Use the `global` object exposed by Node (including Browserify via // `insert-module-globals`), Narwhal, and Ringo as the default context, // and the `window` object in browsers. Rhino exports a `global` function // instead. var root = objectTypes[typeof window] && window || this, freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global; if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) { root = freeGlobal; } // Public: Initializes JSON 3 using the given `context` object, attaching the // `stringify` and `parse` functions to the specified `exports` object. function runInContext(context, exports) { context || (context = root["Object"]()); exports || (exports = root["Object"]()); // Native constructor aliases. var Number = context["Number"] || root["Number"], String = context["String"] || root["String"], Object = context["Object"] || root["Object"], Date = context["Date"] || root["Date"], SyntaxError = context["SyntaxError"] || root["SyntaxError"], TypeError = context["TypeError"] || root["TypeError"], Math = context["Math"] || root["Math"], nativeJSON = context["JSON"] || root["JSON"]; // Delegate to the native `stringify` and `parse` implementations. if (typeof nativeJSON == "object" && nativeJSON) { exports.stringify = nativeJSON.stringify; exports.parse = nativeJSON.parse; } // Convenience aliases. var objectProto = Object.prototype, getClass = objectProto.toString, isProperty, forEach, undef; // Test the `Date#getUTC*` methods. Based on work by @Yaffle. var isExtended = new Date(-3509827334573292); try { // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical // results for certain dates in Opera >= 10.53. isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 && // Safari < 2.0.2 stores the internal millisecond time value correctly, // but clips the values returned by the date methods to the range of // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]). isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708; } catch (exception) {} // Internal: Determines whether the native `JSON.stringify` and `parse` // implementations are spec-compliant. Based on work by Ken Snyder. function has(name) { if (has[name] !== undef) { // Return cached feature test result. return has[name]; } var isSupported; if (name == "bug-string-char-index") { // IE <= 7 doesn't support accessing string characters using square // bracket notation. IE 8 only supports this for primitives. isSupported = "a"[0] != "a"; } else if (name == "json") { // Indicates whether both `JSON.stringify` and `JSON.parse` are // supported. isSupported = has("json-stringify") && has("json-parse"); } else { var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}'; // Test `JSON.stringify`. if (name == "json-stringify") { var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended; if (stringifySupported) { // A test function object with a custom `toJSON` method. (value = function () { return 1; }).toJSON = value; try { stringifySupported = // Firefox 3.1b1 and b2 serialize string, number, and boolean // primitives as object literals. stringify(0) === "0" && // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object // literals. stringify(new Number()) === "0" && stringify(new String()) == '""' && // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or // does not define a canonical JSON representation (this applies to // objects with `toJSON` properties as well, *unless* they are nested // within an object or array). stringify(getClass) === undef && // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and // FF 3.1b3 pass this test. stringify(undef) === undef && // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s, // respectively, if the value is omitted entirely. stringify() === undef && // FF 3.1b1, 2 throw an error if the given value is not a number, // string, array, object, Boolean, or `null` literal. This applies to // objects with custom `toJSON` methods as well, unless they are nested // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON` // methods entirely. stringify(value) === "1" && stringify([value]) == "[1]" && // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of // `"[null]"`. stringify([undef]) == "[null]" && // YUI 3.0.0b1 fails to serialize `null` literals. stringify(null) == "null" && // FF 3.1b1, 2 halts serialization if an array contains a function: // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3 // elides non-JSON values from objects and arrays, unless they // define custom `toJSON` methods. stringify([undef, getClass, null]) == "[null,null,null]" && // Simple serialization test. FF 3.1b1 uses Unicode escape sequences // where character escape codes are expected (e.g., `\b` => `\u0008`). stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized && // FF 3.1b1 and b2 ignore the `filter` and `width` arguments. stringify(null, value) === "1" && stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" && // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly // serialize extended years. stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' && // The milliseconds are optional in ES 5, but required in 5.1. stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' && // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative // four-digit years instead of six-digit years. Credits: @Yaffle. stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' && // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond // values less than 1000. Credits: @Yaffle. stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"'; } catch (exception) { stringifySupported = false; } } isSupported = stringifySupported; } // Test `JSON.parse`. if (name == "json-parse") { var parse = exports.parse; if (typeof parse == "function") { try { // FF 3.1b1, b2 will throw an exception if a bare literal is provided. // Conforming implementations should also coerce the initial argument to // a string prior to parsing. if (parse("0") === 0 && !parse(false)) { // Simple parsing test. value = parse(serialized); var parseSupported = value["a"].length == 5 && value["a"][0] === 1; if (parseSupported) { try { // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings. parseSupported = !parse('"\t"'); } catch (exception) {} if (parseSupported) { try { // FF 4.0 and 4.0.1 allow leading `+` signs and leading // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow // certain octal literals. parseSupported = parse("01") !== 1; } catch (exception) {} } if (parseSupported) { try { // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal // points. These environments, along with FF 3.1b1 and 2, // also allow trailing commas in JSON objects and arrays. parseSupported = parse("1.") !== 1; } catch (exception) {} } } } } catch (exception) { parseSupported = false; } } isSupported = parseSupported; } } return has[name] = !!isSupported; } if (!has("json")) { // Common `[[Class]]` name aliases. var functionClass = "[object Function]", dateClass = "[object Date]", numberClass = "[object Number]", stringClass = "[object String]", arrayClass = "[object Array]", booleanClass = "[object Boolean]"; // Detect incomplete support for accessing string characters by index. var charIndexBuggy = has("bug-string-char-index"); // Define additional utility methods if the `Date` methods are buggy. if (!isExtended) { var floor = Math.floor; // A mapping between the months of the year and the number of days between // January 1st and the first of the respective month. var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334]; // Internal: Calculates the number of days between the Unix epoch and the // first day of the given month. var getDay = function (year, month) { return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400); }; } // Internal: Determines if a property is a direct property of the given // object. Delegates to the native `Object#hasOwnProperty` method. if (!(isProperty = objectProto.hasOwnProperty)) { isProperty = function (property) { var members = {}, constructor; if ((members.__proto__ = null, members.__proto__ = { // The *proto* property cannot be set multiple times in recent // versions of Firefox and SeaMonkey. "toString": 1 }, members).toString != getClass) { // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but // supports the mutable *proto* property. isProperty = function (property) { // Capture and break the object's prototype chain (see section 8.6.2 // of the ES 5.1 spec). The parenthesized expression prevents an // unsafe transformation by the Closure Compiler. var original = this.__proto__, result = property in (this.__proto__ = null, this); // Restore the original prototype chain. this.__proto__ = original; return result; }; } else { // Capture a reference to the top-level `Object` constructor. constructor = members.constructor; // Use the `constructor` property to simulate `Object#hasOwnProperty` in // other environments. isProperty = function (property) { var parent = (this.constructor || constructor).prototype; return property in this && !(property in parent && this[property] === parent[property]); }; } members = null; return isProperty.call(this, property); }; } // Internal: Normalizes the `for...in` iteration algorithm across // environments. Each enumerated key is yielded to a `callback` function. forEach = function (object, callback) { var size = 0, Properties, members, property; // Tests for bugs in the current environment's `for...in` algorithm. The // `valueOf` property inherits the non-enumerable flag from // `Object.prototype` in older versions of IE, Netscape, and Mozilla. (Properties = function () { this.valueOf = 0; }).prototype.valueOf = 0; // Iterate over a new instance of the `Properties` class. members = new Properties(); for (property in members) { // Ignore all properties inherited from `Object.prototype`. if (isProperty.call(members, property)) { size++; } } Properties = members = null; // Normalize the iteration algorithm. if (!size) { // A list of non-enumerable properties inherited from `Object.prototype`. members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"]; // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable // properties. forEach = function (object, callback) { var isFunction = getClass.call(object) == functionClass, property, length; var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty; for (property in object) { // Gecko <= 1.0 enumerates the `prototype` property of functions under // certain conditions; IE does not. if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) { callback(property); } } // Manually invoke the callback for each non-enumerable property. for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property)); }; } else if (size == 2) { // Safari <= 2.0.4 enumerates shadowed properties twice. forEach = function (object, callback) { // Create a set of iterated properties. var members = {}, isFunction = getClass.call(object) == functionClass, property; for (property in object) { // Store each property name to prevent double enumeration. The // `prototype` property of functions is not enumerated due to cross- // environment inconsistencies. if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) { callback(property); } } }; } else { // No bugs detected; use the standard `for...in` algorithm. forEach = function (object, callback) { var isFunction = getClass.call(object) == functionClass, property, isConstructor; for (property in object) { if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) { callback(property); } } // Manually invoke the callback for the `constructor` property due to // cross-environment inconsistencies. if (isConstructor || isProperty.call(object, (property = "constructor"))) { callback(property); } }; } return forEach(object, callback); }; // Public: Serializes a JavaScript `value` as a JSON string. The optional // `filter` argument may specify either a function that alters how object and // array members are serialized, or an array of strings and numbers that // indicates which properties should be serialized. The optional `width` // argument may be either a string or number that specifies the indentation // level of the output. if (!has("json-stringify")) { // Internal: A map of control characters and their escaped equivalents. var Escapes = { 92: "\\\\", 34: '\\"', 8: "\\b", 12: "\\f", 10: "\\n", 13: "\\r", 9: "\\t" }; // Internal: Converts `value` into a zero-padded string such that its // length is at least equal to `width`. The `width` must be <= 6. var leadingZeroes = "000000"; var toPaddedString = function (width, value) { // The `|| 0` expression is necessary to work around a bug in // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`. return (leadingZeroes + (value || 0)).slice(-width); }; // Internal: Double-quotes a string `value`, replacing all ASCII control // characters (characters with code unit values between 0 and 31) with // their escaped equivalents. This is an implementation of the // `Quote(value)` operation defined in ES 5.1 section 15.12.3. var unicodePrefix = "\\u00"; var quote = function (value) { var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10; var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value); for (; index < length; index++) { var charCode = value.charCodeAt(index); // If the character is a control character, append its Unicode or // shorthand escape sequence; otherwise, append the character as-is. switch (charCode) { case 8: case 9: case 10: case 12: case 13: case 34: case 92: result += Escapes[charCode]; break; default: if (charCode < 32) { result += unicodePrefix + toPaddedString(2, charCode.toString(16)); break; } result += useCharIndex ? symbols[index] : value.charAt(index); } } return result + '"'; }; // Internal: Recursively serializes an object. Implements the // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations. var serialize = function (property, object, callback, properties, whitespace, indentation, stack) { var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result; try { // Necessary for host object support. value = object[property]; } catch (exception) {} if (typeof value == "object" && value) { className = getClass.call(value); if (className == dateClass && !isProperty.call(value, "toJSON")) { if (value > -1 / 0 && value < 1 / 0) { // Dates are serialized according to the `Date#toJSON` method // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15 // for the ISO 8601 date time string format. if (getDay) { // Manually compute the year, month, date, hours, minutes, // seconds, and milliseconds if the `getUTC*` methods are // buggy. Adapted from @Yaffle's `date-shim` project. date = floor(value / 864e5); for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++); for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++); date = 1 + date - getDay(year, month); // The `time` value specifies the time within the day (see ES // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used // to compute `A modulo B`, as the `%` operator does not // correspond to the `modulo` operation for negative numbers. time = (value % 864e5 + 864e5) % 864e5; // The hours, minutes, seconds, and milliseconds are obtained by // decomposing the time within the day. See section 15.9.1.10. hours = floor(time / 36e5) % 24; minutes = floor(time / 6e4) % 60; seconds = floor(time / 1e3) % 60; milliseconds = time % 1e3; } else { year = value.getUTCFullYear(); month = value.getUTCMonth(); date = value.getUTCDate(); hours = value.getUTCHours(); minutes = value.getUTCMinutes(); seconds = value.getUTCSeconds(); milliseconds = value.getUTCMilliseconds(); } // Serialize extended years correctly. value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) + "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) + // Months, dates, hours, minutes, and seconds should have two // digits; milliseconds should have three. "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) + // Milliseconds are optional in ES 5.0, but required in 5.1. "." + toPaddedString(3, milliseconds) + "Z"; } else { value = null; } } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) { // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3 // ignores all `toJSON` methods on these objects unless they are // defined directly on an instance. value = value.toJSON(property); } } if (callback) { // If a replacement function was provided, call it to obtain the value // for serialization. value = callback.call(object, property, value); } if (value === null) { return "null"; } className = getClass.call(value); if (className == booleanClass) { // Booleans are represented literally. return "" + value; } else if (className == numberClass) { // JSON numbers must be finite. `Infinity` and `NaN` are serialized as // `"null"`. return value > -1 / 0 && value < 1 / 0 ? "" + value : "null"; } else if (className == stringClass) { // Strings are double-quoted and escaped. return quote("" + value); } // Recursively serialize objects and arrays. if (typeof value == "object") { // Check for cyclic structures. This is a linear search; performance // is inversely proportional to the number of unique nested objects. for (length = stack.length; length--;) { if (stack[length] === value) { // Cyclic structures cannot be serialized by `JSON.stringify`. throw TypeError(); } } // Add the object to the stack of traversed objects. stack.push(value); results = []; // Save the current indentation level and indent one additional level. prefix = indentation; indentation += whitespace; if (className == arrayClass) { // Recursively serialize array elements. for (index = 0, length = value.length; index < length; index++) { element = serialize(index, value, callback, properties, whitespace, indentation, stack); results.push(element === undef ? "null" : element); } result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]"; } else { // Recursively serialize object members. Members are selected from // either a user-specified list of property names, or the object // itself. forEach(properties || value, function (property) { var element = serialize(property, value, callback, properties, whitespace, indentation, stack); if (element !== undef) { // According to ES 5.1 section 15.12.3: "If `gap` {whitespace} // is not the empty string, let `member` {quote(property) + ":"} // be the concatenation of `member` and the `space` character." // The "`space` character" refers to the literal space // character, not the `space` {width} argument provided to // `JSON.stringify`. results.push(quote(property) + ":" + (whitespace ? " " : "") + element); } }); result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}"; } // Remove the object from the traversed object stack. stack.pop(); return result; } }; // Public: `JSON.stringify`. See ES 5.1 section 15.12.3. exports.stringify = function (source, filter, width) { var whitespace, callback, properties, className; if (objectTypes[typeof filter] && filter) { if ((className = getClass.call(filter)) == functionClass) { callback = filter; } else if (className == arrayClass) { // Convert the property names array into a makeshift set. properties = {}; for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1)); } } if (width) { if ((className = getClass.call(width)) == numberClass) { // Convert the `width` to an integer and create a string containing // `width` number of space characters. if ((width -= width % 1) > 0) { for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " "); } } else if (className == stringClass) { whitespace = width.length <= 10 ? width : width.slice(0, 10); } } // Opera <= 7.54u2 discards the values associated with empty string keys // (`""`) only if they are used directly within an object member list // (e.g., `!("" in { "": 1})`). return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []); }; } // Public: Parses a JSON source string. if (!has("json-parse")) { var fromCharCode = String.fromCharCode; // Internal: A map of escaped control characters and their unescaped // equivalents. var Unescapes = { 92: "\\", 34: '"', 47: "/", 98: "\b", 116: "\t", 110: "\n", 102: "\f", 114: "\r" }; // Internal: Stores the parser state. var Index, Source; // Internal: Resets the parser state and throws a `SyntaxError`. var abort = function () { Index = Source = null; throw SyntaxError(); }; // Internal: Returns the next token, or `"$"` if the parser has reached // the end of the source string. A token may be a string, number, `null` // literal, or Boolean literal. var lex = function () { var source = Source, length = source.length, value, begin, position, isSigned, charCode; while (Index < length) { charCode = source.charCodeAt(Index); switch (charCode) { case 9: case 10: case 13: case 32: // Skip whitespace tokens, including tabs, carriage returns, line // feeds, and space characters. Index++; break; case 123: case 125: case 91: case 93: case 58: case 44: // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at // the current position. value = charIndexBuggy ? source.charAt(Index) : source[Index]; Index++; return value; case 34: // `"` delimits a JSON string; advance to the next character and // begin parsing the string. String tokens are prefixed with the // sentinel `@` character to distinguish them from punctuators and // end-of-string tokens. for (value = "@", Index++; Index < length;) { charCode = source.charCodeAt(Index); if (charCode < 32) { // Unescaped ASCII control characters (those with a code unit // less than the space character) are not permitted. abort(); } else if (charCode == 92) { // A reverse solidus (`\`) marks the beginning of an escaped // control character (including `"`, `\`, and `/`) or Unicode // escape sequence. charCode = source.charCodeAt(++Index); switch (charCode) { case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114: // Revive escaped control characters. value += Unescapes[charCode]; Index++; break; case 117: // `\u` marks the beginning of a Unicode escape sequence. // Advance to the first character and validate the // four-digit code point. begin = ++Index; for (position = Index + 4; Index < position; Index++) { charCode = source.charCodeAt(Index); // A valid sequence comprises four hexdigits (case- // insensitive) that form a single hexadecimal value. if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) { // Invalid Unicode escape sequence. abort(); } } // Revive the escaped character. value += fromCharCode("0x" + source.slice(begin, Index)); break; default: // Invalid escape sequence. abort(); } } else { if (charCode == 34) { // An unescaped double-quote character marks the end of the // string. break; } charCode = source.charCodeAt(Index); begin = Index; // Optimize for the common case where a string is valid. while (charCode >= 32 && charCode != 92 && charCode != 34) { charCode = source.charCodeAt(++Index); } // Append the string as-is. value += source.slice(begin, Index); } } if (source.charCodeAt(Index) == 34) { // Advance to the next character and return the revived string. Index++; return value; } // Unterminated string. abort(); default: // Parse numbers and literals. begin = Index; // Advance past the negative sign, if one is specified. if (charCode == 45) { isSigned = true; charCode = source.charCodeAt(++Index); } // Parse an integer or floating-point value. if (charCode >= 48 && charCode <= 57) { // Leading zeroes are interpreted as octal literals. if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) { // Illegal octal literal. abort(); } isSigned = false; // Parse the integer component. for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++); // Floats cannot contain a leading decimal point; however, this // case is already accounted for by the parser. if (source.charCodeAt(Index) == 46) { position = ++Index; // Parse the decimal component. for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++); if (position == Index) { // Illegal trailing decimal. abort(); } Index = position; } // Parse exponents. The `e` denoting the exponent is // case-insensitive. charCode = source.charCodeAt(Index); if (charCode == 101 || charCode == 69) { charCode = source.charCodeAt(++Index); // Skip past the sign following the exponent, if one is // specified. if (charCode == 43 || charCode == 45) { Index++; } // Parse the exponential component. for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++); if (position == Index) { // Illegal empty exponent. abort(); } Index = position; } // Coerce the parsed value to a JavaScript number. return +source.slice(begin, Index); } // A negative sign may only precede numbers. if (isSigned) { abort(); } // `true`, `false`, and `null` literals. if (source.slice(Index, Index + 4) == "true") { Index += 4; return true; } else if (source.slice(Index, Index + 5) == "false") { Index += 5; return false; } else if (source.slice(Index, Index + 4) == "null") { Index += 4; return null; } // Unrecognized token. abort(); } } // Return the sentinel `$` character if the parser has reached the end // of the source string. return "$"; }; // Internal: Parses a JSON `value` token. var get = function (value) { var results, hasMembers; if (value == "$") { // Unexpected end of input. abort(); } if (typeof value == "string") { if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") { // Remove the sentinel `@` character. return value.slice(1); } // Parse object and array literals. if (value == "[") { // Parses a JSON array, returning a new JavaScript array. results = []; for (;; hasMembers || (hasMembers = true)) { value = lex(); // A closing square bracket marks the end of the array literal. if (value == "]") { break; } // If the array literal contains elements, the current token // should be a comma separating the previous element from the // next. if (hasMembers) { if (value == ",") { value = lex(); if (value == "]") { // Unexpected trailing `,` in array literal. abort(); } } else { // A `,` must separate each array element. abort(); } } // Elisions and leading commas are not permitted. if (value == ",") { abort(); } results.push(get(value)); } return results; } else if (value == "{") { // Parses a JSON object, returning a new JavaScript object. results = {}; for (;; hasMembers || (hasMembers = true)) { value = lex(); // A closing curly brace marks the end of the object literal. if (value == "}") { break; } // If the object literal contains members, the current token // should be a comma separator. if (hasMembers) { if (value == ",") { value = lex(); if (value == "}") { // Unexpected trailing `,` in object literal. abort(); } } else { // A `,` must separate each object member. abort(); } } // Leading commas are not permitted, object property names must be // double-quoted strings, and a `:` must separate each property // name and value. if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") { abort(); } results[value.slice(1)] = get(lex()); } return results; } // Unexpected token encountered. abort(); } return value; }; // Internal: Updates a traversed object member. var update = function (source, property, callback) { var element = walk(source, property, callback); if (element === undef) { delete source[property]; } else { source[property] = element; } }; // Internal: Recursively traverses a parsed JSON object, invoking the // `callback` function for each value. This is an implementation of the // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2. var walk = function (source, property, callback) { var value = source[property], length; if (typeof value == "object" && value) { // `forEach` can't be used to traverse an array in Opera <= 8.54 // because its `Object#hasOwnProperty` implementation returns `false` // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`). if (getClass.call(value) == arrayClass) { for (length = value.length; length--;) { update(value, length, callback); } } else { forEach(value, function (property) { update(value, property, callback); }); } } return callback.call(source, property, value); }; // Public: `JSON.parse`. See ES 5.1 section 15.12.2. exports.parse = function (source, callback) { var result, value; Index = 0; Source = "" + source; result = get(lex()); // If a JSON string contains multiple tokens, it is invalid. if (lex() != "$") { abort(); } // Reset the parser state. Index = Source = null; return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result; }; } } exports["runInContext"] = runInContext; return exports; } if (freeExports && !isLoader) { // Export for CommonJS environments. runInContext(root, freeExports); } else { // Export for web browsers and JavaScript engines. var nativeJSON = root.JSON, previousJSON = root["JSON3"], isRestored = false; var JSON3 = runInContext(root, (root["JSON3"] = { // Public: Restores the original value of the global `JSON` object and // returns a reference to the `JSON3` object. "noConflict": function () { if (!isRestored) { isRestored = true; root.JSON = nativeJSON; root["JSON3"] = previousJSON; nativeJSON = previousJSON = null; } return JSON3; } })); root.JSON = { "parse": JSON3.parse, "stringify": JSON3.stringify }; } // Export for asynchronous module loaders. if (isLoader) { define(function () { return JSON3; }); } }).call(this); //############################################################################## // DataUtils.js //############################################################################## (function () { /** * A few data utilities for formatting different data types. * @class DataUtils */ var s = {}; // static methods /** * Parse XML using the DOM. This is required when preloading XML or SVG. * @method parseXML * @param {String} text The raw text or XML that is loaded by XHR. * @param {String} type The mime type of the XML. Use "text/xml" for XML, and "image/svg+xml" for SVG parsing. * @return {XML} An XML document * @static */ s.parseXML = function (text, type) { var xml = null; try { // CocoonJS does not support XML parsing with either method. if (window.DOMParser) { var parser = new DOMParser(); xml = parser.parseFromString(text, type); } else { // IE xml = new ActiveXObject("Microsoft.XMLDOM"); xml.async = false; xml.loadXML(text); } } catch (e) {} return xml; }; /** * Parse a string into an Object. * @method parseJSON * @param {String} value The loaded JSON string * @returns {Object} A JavaScript object. */ s.parseJSON = function (value) { if (value == null) { return null; } try { return JSON.parse(value); } catch (e) { // TODO; Handle this with a custom error? throw e; } }; createjs.DataUtils = s; }()); //############################################################################## // LoadItem.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; /** * All loaders accept an item containing the properties defined in this class. If a raw object is passed instead, * it will not be affected, but it must contain at least a {{#crossLink "src:property"}}{{/crossLink}} property. A * string path or HTML tag is also acceptable, but it will be automatically converted to a LoadItem using the * {{#crossLink "create"}}{{/crossLink}} method by {{#crossLink "AbstractLoader"}}{{/crossLink}} * @class LoadItem * @constructor * @since 0.6.0 */ function LoadItem() { /** * The source of the file that is being loaded. This property is <b>required</b>. The source can either be a * string (recommended), or an HTML tag.</li> * @property src * @type {String} * @default null */ this.src = null; /** * The source of the file that is being loaded. This property is <strong>required</strong>. The source can * either be a string (recommended), or an HTML tag. See the {{#crossLink "AbstractLoader"}}{{/crossLink}} * class for the full list of supported types. * @property type * @type {String} * @default null */ this.type = null; /** * A string identifier which can be used to reference the loaded object. If none is provided, this will be * automatically set to the {{#crossLink "src:property"}}{{/crossLink}}. * @property id * @type {String} * @default null */ this.id = null; /** * Determines if a manifest will maintain the order of this item, in relation to other items in the manifest * that have also set the `maintainOrder` property to `true`. This only applies when the max connections has * been set above 1 (using {{#crossLink "LoadQueue/setMaxConnections"}}{{/crossLink}}). Everything with this * property set to `false` will finish as it is loaded. Ordered items are combined with script tags loading in * order when {{#crossLink "LoadQueue/maintainScriptOrder:property"}}{{/crossLink}} is set to `true`. * @property maintainOrder * @type {Boolean} * @default false */ this.maintainOrder = false; /** * A callback used by JSONP requests that defines what global method to call when the JSONP content is loaded. * @property callback * @type {String} * @default null */ this.callback = null; /** * An arbitrary data object, which is included with the loaded object. * @property data * @type {Object} * @default null */ this.data = null; /** * The request method used for HTTP calls. Both {{#crossLink "AbstractLoader/GET:property"}}{{/crossLink}} or * {{#crossLink "AbstractLoader/POST:property"}}{{/crossLink}} request types are supported, and are defined as * constants on {{#crossLink "AbstractLoader"}}{{/crossLink}}. * @property method * @type {String} * @default get */ this.method = createjs.LoadItem.GET; /** * An object hash of name/value pairs to send to the server. * @property values * @type {Object} * @default null */ this.values = null; /** * An object hash of headers to attach to an XHR request. PreloadJS will automatically attach some default * headers when required, including "Origin", "Content-Type", and "X-Requested-With". You may override the * default headers by including them in your headers object. * @property headers * @type {Object} * @default null */ this.headers = null; /** * Enable credentials for XHR requests. * @property withCredentials * @type {Boolean} * @default false */ this.withCredentials = false; /** * Set the mime type of XHR-based requests. This is automatically set to "text/plain; charset=utf-8" for text * based files (json, xml, text, css, js). * @property mimeType * @type {String} * @default null */ this.mimeType = null; /** * Sets the crossOrigin attribute for CORS-enabled images loading cross-domain. * @property crossOrigin * @type {boolean} * @default Anonymous */ this.crossOrigin = null; /** * The duration in milliseconds to wait before a request times out. This only applies to tag-based and and XHR * (level one) loading, as XHR (level 2) provides its own timeout event. * @property loadTimeout * @type {Number} * @default 8000 (8 seconds) */ this.loadTimeout = 8000; }; var p = LoadItem.prototype = {}; var s = LoadItem; /** * Create/validate a LoadItem. * <ul> * <li>String-based items are converted to a LoadItem with a populated {{#crossLink "src:property"}}{{/crossLink}}.</li> * <li>LoadItem instances are returned as-is</li> * <li>Objectss are returned as-is</li> * </ul> * @method create * @param {LoadItem|String|Object} value The load item value * @returns {Object|LoadItem} * @static */ s.create = function (value) { if (typeof value == "string") { var item = new LoadItem(); item.src = value; return item; } else if (value instanceof s) { return value; } else if (value instanceof Object) { // Don't modify object, allows users to attach random data to the item. // TODO: Disallow objects with no src? return value; } else { throw new Error("Type not recognized."); } }; /** * Provides a chainable shortcut method for setting a number of properties on the instance. * * <h4>Example</h4> * * var loadItem = new createjs.LoadItem().set({src:"image.png", maintainOrder:true}); * * @method set * @param {Object} props A generic object containing properties to copy to the LoadItem instance. * @return {LoadItem} Returns the instance the method is called on (useful for chaining calls.) */ p.set = function(props) { for (var n in props) { this[n] = props[n]; } return this; }; createjs.LoadItem = s; }()); //############################################################################## // RequestUtils.js //############################################################################## (function () { /** * Utilities that assist with parsing load items, and determining file types, etc. * @class RequestUtils */ var s = {}; /** * The Regular Expression used to test file URLS for an absolute path. * @property ABSOLUTE_PATH * @type {RegExp} * @static */ s.ABSOLUTE_PATT = /^(?:\w+:)?\/{2}/i; /** * The Regular Expression used to test file URLS for a relative path. * @property RELATIVE_PATH * @type {RegExp} * @static */ s.RELATIVE_PATT = (/^[./]*?\//i); /** * The Regular Expression used to test file URLS for an extension. Note that URIs must already have the query string * removed. * @property EXTENSION_PATT * @type {RegExp} * @static */ s.EXTENSION_PATT = /\/?[^/]+\.(\w{1,5})$/i; /** * Parse a file path to determine the information we need to work with it. Currently, PreloadJS needs to know: * <ul> * <li>If the path is absolute. Absolute paths start with a protocol (such as `http://`, `file://`, or * `//networkPath`)</li> * <li>If the path is relative. Relative paths start with `../` or `/path` (or similar)</li> * <li>The file extension. This is determined by the filename with an extension. Query strings are dropped, and * the file path is expected to follow the format `name.ext`.</li> * </ul> * @method parseURI * @param {String} path * @returns {Object} An Object with an `absolute` and `relative` Boolean values, as well as an optional 'extension` * property, which is the lowercase extension. * @static */ s.parseURI = function (path) { var info = {absolute: false, relative: false}; if (path == null) { return info; } // Drop the query string var queryIndex = path.indexOf("?"); if (queryIndex > -1) { path = path.substr(0, queryIndex); } // Absolute var match; if (s.ABSOLUTE_PATT.test(path)) { info.absolute = true; // Relative } else if (s.RELATIVE_PATT.test(path)) { info.relative = true; } // Extension if (match = path.match(s.EXTENSION_PATT)) { info.extension = match[1].toLowerCase(); } return info; }; /** * Formats an object into a query string for either a POST or GET request. * @method formatQueryString * @param {Object} data The data to convert to a query string. * @param {Array} [query] Existing name/value pairs to append on to this query. * @static */ s.formatQueryString = function (data, query) { if (data == null) { throw new Error('You must specify data.'); } var params = []; for (var n in data) { params.push(n + '=' + escape(data[n])); } if (query) { params = params.concat(query); } return params.join('&'); }; /** * A utility method that builds a file path using a source and a data object, and formats it into a new path. * @method buildPath * @param {String} src The source path to add values to. * @param {Object} [data] Object used to append values to this request as a query string. Existing parameters on the * path will be preserved. * @returns {string} A formatted string that contains the path and the supplied parameters. * @static */ s.buildPath = function (src, data) { if (data == null) { return src; } var query = []; var idx = src.indexOf('?'); if (idx != -1) { var q = src.slice(idx + 1); query = query.concat(q.split('&')); } if (idx != -1) { return src.slice(0, idx) + '?' + this._formatQueryString(data, query); } else { return src + '?' + this._formatQueryString(data, query); } }; /** * @method isCrossDomain * @param {LoadItem|Object} item A load item with a `src` property. * @return {Boolean} If the load item is loading from a different domain than the current location. * @static */ s.isCrossDomain = function (item) { var target = document.createElement("a"); target.href = item.src; var host = document.createElement("a"); host.href = location.href; var crossdomain = (target.hostname != "") && (target.port != host.port || target.protocol != host.protocol || target.hostname != host.hostname); return crossdomain; }; /** * @method isLocal * @param {LoadItem|Object} item A load item with a `src` property * @return {Boolean} If the load item is loading from the "file:" protocol. Assume that the host must be local as * well. * @static */ s.isLocal = function (item) { var target = document.createElement("a"); target.href = item.src; return target.hostname == "" && target.protocol == "file:"; }; /** * Determine if a specific type should be loaded as a binary file. Currently, only images and items marked * specifically as "binary" are loaded as binary. Note that audio is <b>not</b> a binary type, as we can not play * back using an audio tag if it is loaded as binary. Plugins can change the item type to binary to ensure they get * a binary result to work with. Binary files are loaded using XHR2. Types are defined as static constants on * {{#crossLink "AbstractLoader"}}{{/crossLink}}. * @method isBinary * @param {String} type The item type. * @return {Boolean} If the specified type is binary. * @static */ s.isBinary = function (type) { switch (type) { case createjs.AbstractLoader.IMAGE: case createjs.AbstractLoader.BINARY: return true; default: return false; } }; /** * Check if item is a valid HTMLImageElement * @method isImageTag * @param {Object} item * @returns {Boolean} * @static */ s.isImageTag = function(item) { return item instanceof HTMLImageElement; }; /** * Check if item is a valid HTMLAudioElement * @method isAudioTag * @param {Object} item * @returns {Boolean} * @static */ s.isAudioTag = function(item) { if (window.HTMLAudioElement) { return item instanceof HTMLAudioElement; } else { return false; } }; /** * Check if item is a valid HTMLVideoElement * @method isVideoTag * @param {Objectitem * @returns {Boolean} * @static */ s.isVideoTag = function(item) { if (window.HTMLVideoElement) { return item instanceof HTMLVideoElement; } else { false; } }; /** * Determine if a specific type is a text-based asset, and should be loaded as UTF-8. * @method isText * @param {String} type The item type. * @return {Boolean} If the specified type is text. * @static */ s.isText = function (type) { switch (type) { case createjs.AbstractLoader.TEXT: case createjs.AbstractLoader.JSON: case createjs.AbstractLoader.MANIFEST: case createjs.AbstractLoader.XML: case createjs.AbstractLoader.CSS: case createjs.AbstractLoader.SVG: case createjs.AbstractLoader.JAVASCRIPT: case createjs.AbstractLoader.SPRITESHEET: return true; default: return false; } }; /** * Determine the type of the object using common extensions. Note that the type can be passed in with the load item * if it is an unusual extension. * @method getTypeByExtension * @param {String} extension The file extension to use to determine the load type. * @return {String} The determined load type (for example, <code>AbstractLoader.IMAGE</code>). Will return `null` if * the type can not be determined by the extension. * @static */ s.getTypeByExtension = function (extension) { if (extension == null) { return createjs.AbstractLoader.TEXT; } switch (extension.toLowerCase()) { case "jpeg": case "jpg": case "gif": case "png": case "webp": case "bmp": return createjs.AbstractLoader.IMAGE; case "ogg": case "mp3": case "webm": return createjs.AbstractLoader.SOUND; case "mp4": case "webm": case "ts": return createjs.AbstractLoader.VIDEO; case "json": return createjs.AbstractLoader.JSON; case "xml": return createjs.AbstractLoader.XML; case "css": return createjs.AbstractLoader.CSS; case "js": return createjs.AbstractLoader.JAVASCRIPT; case 'svg': return createjs.AbstractLoader.SVG; default: return createjs.AbstractLoader.TEXT; } }; createjs.RequestUtils = s; }()); //############################################################################## // AbstractLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * The base loader, which defines all the generic methods, properties, and events. All loaders extend this class, * including the {{#crossLink "LoadQueue"}}{{/crossLink}}. * @class AbstractLoader * @param {LoadItem|object|string} The item to be loaded. * @param {Boolean} [preferXHR] Determines if the LoadItem should <em>try</em> and load using XHR, or take a * tag-based approach, which can be better in cross-domain situations. Not all loaders can load using one or the * other, so this is a suggested directive. * @oaram {String} [type] The type of loader. Loader types are defined as constants on the AbstractLoader class, * such as {{#crossLink "IMAGE:property"}}{{/crossLink}}, {{#crossLink "CSS:property"}}{{/crossLink}}, etc. * @extends EventDispatcher */ function AbstractLoader(loadItem, preferXHR, type) { this.EventDispatcher_constructor(); // public properties /** * If the loader has completed loading. This provides a quick check, but also ensures that the different approaches * used for loading do not pile up resulting in more than one `complete` {{#crossLink "Event"}}{{/crossLink}}. * @property loaded * @type {Boolean} * @default false */ this.loaded = false; /** * Determine if the loader was canceled. Canceled loads will not fire complete events. Note that this property * is readonly, so {{#crossLink "LoadQueue"}}{{/crossLink}} queues should be closed using {{#crossLink "LoadQueue/close"}}{{/crossLink}} * instead. * @property canceled * @type {Boolean} * @default false */ this.canceled = false; /** * The current load progress (percentage) for this item. This will be a number between 0 and 1. * * <h4>Example</h4> * * var queue = new createjs.LoadQueue(); * queue.loadFile("largeImage.png"); * queue.on("progress", function() { * console.log("Progress:", queue.progress, event.progress); * }); * * @property progress * @type {Number} * @default 0 */ this.progress = 0; /** * The type of item this loader will load. See {{#crossLink "AbstractLoader"}}{{/crossLink}} for a full list of * supported types. * @property type * @type {String} */ this.type = type; /** * A formatter function that converts the loaded raw result into the final result. For example, the JSONLoader * converts a string of text into a JavaScript object. Not all loaders have a resultFormatter, and this property * can be overridden to provide custom formatting. * * Optionally, a resultFormatter can return a callback function in cases where the formatting needs to be * asynchronous, such as creating a new image. * @property resultFormatter * @type {Function} * @default null */ this.resultFormatter = null; // protected properties /** * The {{#crossLink "LoadItem"}}{{/crossLink}} this loader represents. Note that this is null in a {{#crossLink "LoadQueue"}}{{/crossLink}}, * but will be available on loaders such as {{#crossLink "XMLLoader"}}{{/crossLink}} and {{#crossLink "ImageLoader"}}{{/crossLink}}. * @property _item * @type {LoadItem|Object} * @private */ if (loadItem) { this._item = createjs.LoadItem.create(loadItem); } else { this._item = null; } /** * Whether the loader will try and load content using XHR (true) or HTML tags (false). * @property _preferXHR * @type {Boolean} * @private */ this._preferXHR = preferXHR; /** * The loaded result after it is formatted by an optional {{#crossLink "resultFormatter"}}{{/crossLink}}. For * items that are not formatted, this will be the same as the {{#crossLink "_rawResult:property"}}{{/crossLink}}. * The result is accessed using the {{#crossLink "getResult"}}{{/crossLink}} method. * @property _result * @type {Object|String} * @private */ this._result = null; /** * The loaded result before it is formatted. The rawResult is accessed using the {{#crossLink "getResult"}}{{/crossLink}} * method, and passing `true`. * @property _rawResult * @type {Object|String} * @private */ this._rawResult = null; /** * A list of items that loaders load behind the scenes. This does not include the main item the loader is * responsible for loading. Examples of loaders that have sub-items include the {{#crossLink "SpriteSheetLoader"}}{{/crossLink}} and * {{#crossLink "ManifestLoader"}}{{/crossLink}}. * @property _loadItems * @type {null} * @protected */ this._loadedItems = null; /** * The attribute the items loaded using tags use for the source. * @type {string} * @default null * @private */ this._tagSrcAttribute = null; /** * An HTML tag (or similar) that a loader may use to load HTML content, such as images, scripts, etc. * @property _tag * @type {Object} * @private */ this._tag = null; }; var p = createjs.extend(AbstractLoader, createjs.EventDispatcher); var s = AbstractLoader; // TODO: deprecated // p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details. /** * Defines a POST request, use for a method value when loading data. * @property POST * @type {string} * @default post */ s.POST = "POST"; /** * Defines a GET request, use for a method value when loading data. * @property GET * @type {string} * @default get */ s.GET = "GET"; /** * The preload type for generic binary types. Note that images are loaded as binary files when using XHR. * @property BINARY * @type {String} * @default binary * @static * @since 0.6.0 */ s.BINARY = "binary"; /** * The preload type for css files. CSS files are loaded using a <link> when loaded with XHR, or a * <style> tag when loaded with tags. * @property CSS * @type {String} * @default css * @static * @since 0.6.0 */ s.CSS = "css"; /** * The preload type for image files, usually png, gif, or jpg/jpeg. Images are loaded into an <image> tag. * @property IMAGE * @type {String} * @default image * @static * @since 0.6.0 */ s.IMAGE = "image"; /** * The preload type for javascript files, usually with the "js" file extension. JavaScript files are loaded into a * <script> tag. * * Since version 0.4.1+, due to how tag-loaded scripts work, all JavaScript files are automatically injected into * the body of the document to maintain parity between XHR and tag-loaded scripts. In version 0.4.0 and earlier, * only tag-loaded scripts are injected. * @property JAVASCRIPT * @type {String} * @default javascript * @static * @since 0.6.0 */ s.JAVASCRIPT = "javascript"; /** * The preload type for json files, usually with the "json" file extension. JSON data is loaded and parsed into a * JavaScript object. Note that if a `callback` is present on the load item, the file will be loaded with JSONP, * no matter what the {{#crossLink "LoadQueue/preferXHR:property"}}{{/crossLink}} property is set to, and the JSON * must contain a matching wrapper function. * @property JSON * @type {String} * @default json * @static * @since 0.6.0 */ s.JSON = "json"; /** * The preload type for jsonp files, usually with the "json" file extension. JSON data is loaded and parsed into a * JavaScript object. You are required to pass a callback parameter that matches the function wrapper in the JSON. * Note that JSONP will always be used if there is a callback present, no matter what the {{#crossLink "LoadQueue/preferXHR:property"}}{{/crossLink}} * property is set to. * @property JSONP * @type {String} * @default jsonp * @static * @since 0.6.0 */ s.JSONP = "jsonp"; /** * The preload type for json-based manifest files, usually with the "json" file extension. The JSON data is loaded * and parsed into a JavaScript object. PreloadJS will then look for a "manifest" property in the JSON, which is an * Array of files to load, following the same format as the {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}} * method. If a "callback" is specified on the manifest object, then it will be loaded using JSONP instead, * regardless of what the {{#crossLink "LoadQueue/preferXHR:property"}}{{/crossLink}} property is set to. * @property MANIFEST * @type {String} * @default manifest * @static * @since 0.6.0 */ s.MANIFEST = "manifest"; /** * The preload type for sound files, usually mp3, ogg, or wav. When loading via tags, audio is loaded into an * <audio> tag. * @property SOUND * @type {String} * @default sound * @static * @since 0.6.0 */ s.SOUND = "sound"; /** * The preload type for video files, usually mp4, ts, or ogg. When loading via tags, video is loaded into an * <video> tag. * @property VIDEO * @type {String} * @default video * @static * @since 0.6.0 */ s.VIDEO = "video"; /** * The preload type for SpriteSheet files. SpriteSheet files are JSON files that contain string image paths. * @property SPRITESHEET * @type {String} * @default spritesheet * @static * @since 0.6.0 */ s.SPRITESHEET = "spritesheet"; /** * The preload type for SVG files. * @property SVG * @type {String} * @default svg * @static * @since 0.6.0 */ s.SVG = "svg"; /** * The preload type for text files, which is also the default file type if the type can not be determined. Text is * loaded as raw text. * @property TEXT * @type {String} * @default text * @static * @since 0.6.0 */ s.TEXT = "text"; /** * The preload type for xml files. XML is loaded into an XML document. * @property XML * @type {String} * @default xml * @static * @since 0.6.0 */ s.XML = "xml"; // Events /** * The {{#crossLink "ProgressEvent"}}{{/crossLink}} that is fired when the overall progress changes. Prior to * version 0.6.0, this was just a regular {{#crossLink "Event"}}{{/crossLink}}. * @event progress * @since 0.3.0 */ /** * The {{#crossLink "Event"}}{{/crossLink}} that is fired when a load starts. * @event loadstart * @param {Object} target The object that dispatched the event. * @param {String} type The event type. * @since 0.3.1 */ /** * The {{#crossLink "Event"}}{{/crossLink}} that is fired when the entire queue has been loaded. * @event complete * @param {Object} target The object that dispatched the event. * @param {String} type The event type. * @since 0.3.0 */ /** * The {{#crossLink "ErrorEvent"}}{{/crossLink}} that is fired when the loader encounters an error. If the error was * encountered by a file, the event will contain the item that caused the error. Prior to version 0.6.0, this was * just a regular {{#crossLink "Event"}}{{/crossLink}}. * @event error * @since 0.3.0 */ /** * The {{#crossLink "Event"}}{{/crossLink}} that is fired when the loader encounters an internal file load error. * This enables loaders to maintain internal queues, and surface file load errors. * @event fileerror * @param {Object} target The object that dispatched the event. * @param {String} type The even type ("fileerror") * @param {LoadItem|object} The item that encountered the error * @since 0.6.0 */ /** * The {{#crossLink "Event"}}{{/crossLink}} that is fired when a loader internally loads a file. This enables * loaders such as {{#crossLink "ManifestLoader"}}{{/crossLink}} to maintain internal {{#crossLink "LoadQueue"}}{{/crossLink}}s * and notify when they have loaded a file. The {{#crossLink "LoadQueue"}}{{/crossLink}} class dispatches a * slightly different {{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}} event. * @event fileload * @param {Object} target The object that dispatched the event. * @param {String} type The event type ("fileload") * @param {Object} item The file item which was specified in the {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} * or {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}} call. If only a string path or tag was specified, the * object will contain that value as a `src` property. * @param {Object} result The HTML tag or parsed result of the loaded item. * @param {Object} rawResult The unprocessed result, usually the raw text or binary data before it is converted * to a usable object. * @since 0.6.0 */ /** * The {{#crossLink "Event"}}{{/crossLink}} that is fired after the internal request is created, but before a load. * This allows updates to the loader for specific loading needs, such as binary or XHR image loading. * @event initialize * @param {Object} target The object that dispatched the event. * @param {String} type The event type ("initialize") * @param {AbstractLoader} loader The loader that has been initialized. */ /** * Get a reference to the manifest item that is loaded by this loader. In some cases this will be the value that was * passed into {{#crossLink "LoadQueue"}}{{/crossLink}} using {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} or * {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}}. However if only a String path was passed in, then it will * be a {{#crossLink "LoadItem"}}{{/crossLink}}. * @method getItem * @return {Object} The manifest item that this loader is responsible for loading. * @since 0.6.0 */ p.getItem = function () { return this._item; }; /** * Get a reference to the content that was loaded by the loader (only available after the {{#crossLink "complete:event"}}{{/crossLink}} * event is dispatched. * @method getResult * @param {Boolean} [raw=false] Determines if the returned result will be the formatted content, or the raw loaded * data (if it exists). * @return {Object} * @since 0.6.0 */ p.getResult = function (raw) { return raw ? this._rawResult : this._result; }; /** * Return the `tag` this object creates or uses for loading. * @method getTag * @return {Object} The tag instance * @since 0.6.0 */ p.getTag = function () { return this._tag; }; /** * Set the `tag` this item uses for loading. * @method setTag * @param {Object} tag The tag instance * @since 0.6.0 */ p.setTag = function(tag) { this._tag = tag; }; /** * Begin loading the item. This method is required when using a loader by itself. * * <h4>Example</h4> * * var queue = new createjs.LoadQueue(); * queue.on("complete", handleComplete); * queue.loadManifest(fileArray, false); // Note the 2nd argument that tells the queue not to start loading yet * queue.load(); * * @method load */ p.load = function () { this._createRequest(); this._request.on("complete", this, this); this._request.on("progress", this, this); this._request.on("loadStart", this, this); this._request.on("abort", this, this); this._request.on("timeout", this, this); this._request.on("error", this, this); var evt = new createjs.Event("initialize"); evt.loader = this._request; this.dispatchEvent(evt); this._request.load(); }; /** * Close the the item. This will stop any open requests (although downloads using HTML tags may still continue in * the background), but events will not longer be dispatched. * @method cancel */ p.cancel = function () { this.canceled = true; this.destroy(); }; /** * Clean up the loader. * @method destroy */ p.destroy = function() { if (this._request) { this._request.removeAllEventListeners(); this._request.destroy(); } this._request = null; this._item = null; this._rawResult = null; this._result = null; this._loadItems = null; this.removeAllEventListeners(); }; /** * Get any items loaded internally by the loader. The enables loaders such as {{#crossLink "ManifestLoader"}}{{/crossLink}} * to expose items it loads internally. * @method getLoadedItems * @return {Array} A list of the items loaded by the loader. * @since 0.6.0 */ p.getLoadedItems = function () { return this._loadedItems; }; // Private methods /** * Create an internal request used for loading. By default, an {{#crossLink "XHRRequest"}}{{/crossLink}} or * {{#crossLink "TagRequest"}}{{/crossLink}} is created, depending on the value of {{#crossLink "preferXHR:property"}}{{/crossLink}}. * Other loaders may override this to use different request types, such as {{#crossLink "ManifestLoader"}}{{/crossLink}}, * which uses {{#crossLink "JSONLoader"}}{{/crossLink}} or {{#crossLink "JSONPLoader"}}{{/crossLink}} under the hood. * @method _createRequest * @protected */ p._createRequest = function() { if (!this._preferXHR) { this._request = new createjs.TagRequest(this._item, this._tag || this._createTag(), this._tagSrcAttribute); } else { this._request = new createjs.XHRRequest(this._item); } }; /** * Create the HTML tag used for loading. This method does nothing by default, and needs to be implemented * by loaders that require tag loading. * @method _createTag * @param {String} src The tag source * @return {HTMLElement} The tag that was created * @protected */ p._createTag = function(src) { return null; }; /** * Dispatch a loadstart {{#crossLink "Event"}}{{/crossLink}}. Please see the {{#crossLink "AbstractLoader/loadstart:event"}}{{/crossLink}} * event for details on the event payload. * @method _sendLoadStart * @protected */ p._sendLoadStart = function () { if (this._isCanceled()) { return; } this.dispatchEvent("loadstart"); }; /** * Dispatch a {{#crossLink "ProgressEvent"}}{{/crossLink}}. * @method _sendProgress * @param {Number | Object} value The progress of the loaded item, or an object containing <code>loaded</code> * and <code>total</code> properties. * @protected */ p._sendProgress = function (value) { if (this._isCanceled()) { return; } var event = null; if (typeof(value) == "number") { this.progress = value; event = new createjs.ProgressEvent(this.progress); } else { event = value; this.progress = value.loaded / value.total; event.progress = this.progress; if (isNaN(this.progress) || this.progress == Infinity) { this.progress = 0; } } this.hasEventListener("progress") && this.dispatchEvent(event); }; /** * Dispatch a complete {{#crossLink "Event"}}{{/crossLink}}. Please see the {{#crossLink "AbstractLoader/complete:event"}}{{/crossLink}} event * @method _sendComplete * @protected */ p._sendComplete = function () { if (this._isCanceled()) { return; } this.loaded = true; var event = new createjs.Event("complete"); event.rawResult = this._rawResult; if (this._result != null) { event.result = this._result; } this.dispatchEvent(event); }; /** * Dispatch an error {{#crossLink "Event"}}{{/crossLink}}. Please see the {{#crossLink "AbstractLoader/error:event"}}{{/crossLink}} * event for details on the event payload. * @method _sendError * @param {ErrorEvent} event The event object containing specific error properties. * @protected */ p._sendError = function (event) { if (this._isCanceled() || !this.hasEventListener("error")) { return; } if (event == null) { event = new createjs.ErrorEvent("PRELOAD_ERROR_EMPTY"); // TODO: Populate error } this.dispatchEvent(event); }; /** * Determine if the load has been canceled. This is important to ensure that method calls or asynchronous events * do not cause issues after the queue has been cleaned up. * @method _isCanceled * @return {Boolean} If the loader has been canceled. * @protected */ p._isCanceled = function () { if (window.createjs == null || this.canceled) { return true; } return false; }; /** * A custom result formatter function, which is called just before a request dispatches its complete event. Most * loader types already have an internal formatter, but this can be user-overridden for custom formatting. The * formatted result will be available on Loaders using {{#crossLink "getResult"}}{{/crossLink}}, and passing `true`. * @property resultFormatter * @type Function * @return {Object} The formatted result * @since 0.6.0 */ p.resultFormatter = null; //TODO: Add support for async formatting. /** * Handle events from internal requests. By default, loaders will handle, and redispatch the necessary events, but * this method can be overridden for custom behaviours. * @method handleEvent * @param {Event} The event that the internal request dispatches. * @protected * @since 0.6.0 */ p.handleEvent = function (event) { switch (event.type) { case "complete": this._rawResult = event.target._response; var result = this.resultFormatter && this.resultFormatter(this); var _this = this; if (result instanceof Function) { result(function(result) { _this._result = result; _this._sendComplete(); }); } else { this._result = result || this._rawResult; this._sendComplete(); } break; case "progress": this._sendProgress(event); break; case "error": this._sendError(event); break; case "loadstart": this._sendLoadStart(); break; case "abort": case "timeout": if (!this._isCanceled()) { this.dispatchEvent(event.type); } break; } }; /** * @method buildPath * @protected * @deprecated Use the {{#crossLink "RequestUtils"}}{{/crossLink}} method {{#crossLink "RequestUtils/buildPath"}}{{/crossLink}} * instead. */ p.buildPath = function (src, data) { return createjs.RequestUtils.buildPath(src, data); }; /** * @method toString * @return {String} a string representation of the instance. */ p.toString = function () { return "[PreloadJS AbstractLoader]"; }; createjs.AbstractLoader = createjs.promote(AbstractLoader, "EventDispatcher"); }()); //############################################################################## // AbstractMediaLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * The AbstractMediaLoader is a base class that handles some of the shared methods and properties of loaders that * handle HTML media elements, such as Video and Audio. * @class AbstractMediaLoader * @param {LoadItem|Object} loadItem * @param {Boolean} preferXHR * @param {String} type The type of media to load. Usually "video" or "audio". * @constructor */ function AbstractMediaLoader(loadItem, preferXHR, type) { this.AbstractLoader_constructor(loadItem, preferXHR, type); // public properties this.resultFormatter = this._formatResult; // protected properties this._tagSrcAttribute = "src"; }; var p = createjs.extend(AbstractMediaLoader, createjs.AbstractLoader); // static properties // public methods p.load = function () { // TagRequest will handle most of this, but Sound / Video need a few custom properties, so just handle them here. if (!this._tag) { this._tag = this._createTag(this._item.src); } this._tag.preload = "auto"; this._tag.load(); this.AbstractLoader_load(); }; // protected methods /** * Creates a new tag for loading if it doesn't exist yet. * @method _createTag * @private */ p._createTag = function () {}; p._createRequest = function() { if (!this._preferXHR) { this._request = new createjs.MediaTagRequest(this._item, this._tag || this._createTag(), this._tagSrcAttribute); } else { this._request = new createjs.XHRRequest(this._item); } }; /** * The result formatter for media files. * @method _formatResult * @param {AbstractLoader} loader * @returns {HTMLVideoElement|HTMLAudioElement} * @private */ p._formatResult = function (loader) { this._tag.removeEventListener && this._tag.removeEventListener("canplaythrough", this._loadedHandler); this._tag.onstalled = null; if (this._preferXHR) { loader.getTag().src = loader.getResult(true); } return loader.getTag(); }; createjs.AbstractMediaLoader = createjs.promote(AbstractMediaLoader, "AbstractLoader"); }()); //############################################################################## // AbstractRequest.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; /** * A base class for actual data requests, such as {{#crossLink "XHRRequest"}}{{/crossLink}}, {{#crossLink "TagRequest"}}{{/crossLink}}, * and {{#crossLink "MediaRequest"}}{{/crossLink}}. PreloadJS loaders will typically use a data loader under the * hood to get data. * @class AbstractRequest * @param {LoadItem} item * @constructor */ var AbstractRequest = function (item) { this._item = item; }; var p = createjs.extend(AbstractRequest, createjs.EventDispatcher); // public methods /** * Begin a load. * @method load */ p.load = function() {}; /** * Clean up a request. * @method destroy */ p.destroy = function() {}; /** * Cancel an in-progress request. * @method cancel */ p.cancel = function() {}; createjs.AbstractRequest = createjs.promote(AbstractRequest, "EventDispatcher"); }()); //############################################################################## // TagRequest.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * An {{#crossLink "AbstractRequest"}}{{/crossLink}} that loads HTML tags, such as images and scripts. * @class TagRequest * @param {LoadItem} loadItem * @param {HTMLElement} tag * @param {String} srcAttribute The tag attribute that specifies the source, such as "src", "href", etc. */ function TagRequest(loadItem, tag, srcAttribute) { this.AbstractRequest_constructor(loadItem); // protected properties /** * The HTML tag instance that is used to load. * @property _tag * @type {HTMLElement} * @protected */ this._tag = tag; /** * The tag attribute that specifies the source, such as "src", "href", etc. * @property _tagSrcAttribute * @type {String} * @protected */ this._tagSrcAttribute = srcAttribute; /** * A method closure used for handling the tag load event. * @property _loadedHandler * @type {Function} * @private */ this._loadedHandler = createjs.proxy(this._handleTagComplete, this); /** * Determines if the element was added to the DOM automatically by PreloadJS, so it can be cleaned up after. * @property _addedToDOM * @type {Boolean} * @private */ this._addedToDOM = false; /** * Determines what the tags initial style.visibility was, so we can set it correctly after a load. * * @type {null} * @private */ this._startTagVisibility = null; }; var p = createjs.extend(TagRequest, createjs.AbstractRequest); // public methods p.load = function () { if (this._tag.parentNode == null) { window.document.body.appendChild(this._tag); this._addedToDOM = true; } this._tag.onload = createjs.proxy(this._handleTagComplete, this); this._tag.onreadystatechange = createjs.proxy(this._handleReadyStateChange, this); var evt = new createjs.Event("initialize"); evt.loader = this._tag; this.dispatchEvent(evt); this._hideTag(); this._tag[this._tagSrcAttribute] = this._item.src; }; p.destroy = function() { this._clean(); this._tag = null; this.AbstractRequest_destroy(); }; // private methods /** * Handle the readyStateChange event from a tag. We need this in place of the `onload` callback (mainly SCRIPT * and LINK tags), but other cases may exist. * @method _handleReadyStateChange * @private */ p._handleReadyStateChange = function () { clearTimeout(this._loadTimeout); // This is strictly for tags in browsers that do not support onload. var tag = this._tag; // Complete is for old IE support. if (tag.readyState == "loaded" || tag.readyState == "complete") { this._handleTagComplete(); } }; /** * Handle the tag's onload callback. * @method _handleTagComplete * @private */ p._handleTagComplete = function () { this._rawResult = this._tag; this._result = this.resultFormatter && this.resultFormatter(this) || this._rawResult; this._clean(); this._showTag(); this.dispatchEvent("complete"); }; /** * Remove event listeners, but don't destroy the request object * @method _clean * @private */ p._clean = function() { this._tag.onload = null; this._tag.onreadystatechange = null; if (this._addedToDOM && this._tag.parentNode != null) { this._tag.parentNode.removeChild(this._tag); } }; p._hideTag = function() { this._startTagVisibility = this._tag.style.visibility; this._tag.style.visibility = "hidden"; }; p._showTag = function() { this._tag.style.visibility = this._startTagVisibility; }; /** * Handle a stalled audio event. The main place this happens is with HTMLAudio in Chrome when playing back audio * that is already in a load, but not complete. * @method _handleStalled * @private */ p._handleStalled = function () { //Ignore, let the timeout take care of it. Sometimes its not really stopped. }; createjs.TagRequest = createjs.promote(TagRequest, "AbstractRequest"); }()); //############################################################################## // MediaTagRequest.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * An {{#crossLink "TagRequest"}}{{/crossLink}} that loads HTML tags for video and audio. * @class MediaTagRequest * @param {LoadItem} loadItem * @param {HTMLAudioElement|HTMLVideoElement} tag * @param {String} srcAttribute The tag attribute that specifies the source, such as "src", "href", etc. * @constructor */ function MediaTagRequest(loadItem, tag, srcAttribute) { this.AbstractRequest_constructor(loadItem); // protected properties this._tag = tag; this._tagSrcAttribute = srcAttribute; this._loadedHandler = createjs.proxy(this._handleTagComplete, this); }; var p = createjs.extend(MediaTagRequest, createjs.TagRequest); var s = MediaTagRequest; // public methods p.load = function () { this._tag.onstalled = createjs.proxy(this._handleStalled, this); this._tag.onprogress = createjs.proxy(this._handleProgress, this); // This will tell us when audio is buffered enough to play through, but not when its loaded. // The tag doesn't keep loading in Chrome once enough has buffered, and we have decided that behaviour is sufficient. this._tag.addEventListener && this._tag.addEventListener("canplaythrough", this._loadedHandler, false); // canplaythrough callback doesn't work in Chrome, so we use an event. this.TagRequest_load(); }; // private methods p._handleReadyStateChange = function () { clearTimeout(this._loadTimeout); // This is strictly for tags in browsers that do not support onload. var tag = this._tag; // Complete is for old IE support. if (tag.readyState == "loaded" || tag.readyState == "complete") { this._handleTagComplete(); } }; p._handleStalled = function () { //Ignore, let the timeout take care of it. Sometimes its not really stopped. }; /** * An XHR request has reported progress. * @method _handleProgress * @param {Object} event The XHR progress event. * @private */ p._handleProgress = function (event) { if (!event || event.loaded > 0 && event.total == 0) { return; // Sometimes we get no "total", so just ignore the progress event. } var newEvent = new createjs.ProgressEvent(event.loaded, event.total); this.dispatchEvent(newEvent); }; // protected methods p._clean = function () { this._tag.removeEventListener && this._tag.removeEventListener("canplaythrough", this._loadedHandler); this._tag.onstalled = null; this._tag.onprogress = null; this.TagRequest__clean(); }; createjs.MediaTagRequest = createjs.promote(MediaTagRequest, "TagRequest"); }()); //############################################################################## // XHRRequest.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A preloader that loads items using XHR requests, usually XMLHttpRequest. However XDomainRequests will be used * for cross-domain requests if possible, and older versions of IE fall back on to ActiveX objects when necessary. * XHR requests load the content as text or binary data, provide progress and consistent completion events, and * can be canceled during load. Note that XHR is not supported in IE 6 or earlier, and is not recommended for * cross-domain loading. * @class XHRRequest * @constructor * @param {Object} item The object that defines the file to load. Please see the {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} * for an overview of supported file properties. * @extends AbstractLoader */ function XHRRequest(item) { this.AbstractRequest_constructor(item); // protected properties /** * A reference to the XHR request used to load the content. * @property _request * @type {XMLHttpRequest | XDomainRequest | ActiveX.XMLHTTP} * @private */ this._request = null; /** * A manual load timeout that is used for browsers that do not support the onTimeout event on XHR (XHR level 1, * typically IE9). * @property _loadTimeout * @type {Number} * @private */ this._loadTimeout = null; /** * The browser's XHR (XMLHTTPRequest) version. Supported versions are 1 and 2. There is no official way to detect * the version, so we use capabilities to make a best guess. * @property _xhrLevel * @type {Number} * @default 1 * @private */ this._xhrLevel = 1; /** * The response of a loaded file. This is set because it is expensive to look up constantly. This property will be * null until the file is loaded. * @property _response * @type {mixed} * @private */ this._response = null; /** * The response of the loaded file before it is modified. In most cases, content is converted from raw text to * an HTML tag or a formatted object which is set to the <code>result</code> property, but the developer may still * want to access the raw content as it was loaded. * @property _rawResponse * @type {String|Object} * @private */ this._rawResponse = null; this._canceled = false; // Setup our event handlers now. this._handleLoadStartProxy = createjs.proxy(this._handleLoadStart, this); this._handleProgressProxy = createjs.proxy(this._handleProgress, this); this._handleAbortProxy = createjs.proxy(this._handleAbort, this); this._handleErrorProxy = createjs.proxy(this._handleError, this); this._handleTimeoutProxy = createjs.proxy(this._handleTimeout, this); this._handleLoadProxy = createjs.proxy(this._handleLoad, this); this._handleReadyStateChangeProxy = createjs.proxy(this._handleReadyStateChange, this); if (!this._createXHR(item)) { //TODO: Throw error? } }; var p = createjs.extend(XHRRequest, createjs.AbstractRequest); // static properties /** * A list of XMLHTTP object IDs to try when building an ActiveX object for XHR requests in earlier versions of IE. * @property ACTIVEX_VERSIONS * @type {Array} * @since 0.4.2 * @private */ XHRRequest.ACTIVEX_VERSIONS = [ "Msxml2.XMLHTTP.6.0", "Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP" ]; // Public methods /** * Look up the loaded result. * @method getResult * @param {Boolean} [raw=false] Return a raw result instead of a formatted result. This applies to content * loaded via XHR such as scripts, XML, CSS, and Images. If there is no raw result, the formatted result will be * returned instead. * @return {Object} A result object containing the content that was loaded, such as: * <ul> * <li>An image tag (<image />) for images</li> * <li>A script tag for JavaScript (<script />). Note that scripts loaded with tags may be added to the * HTML head.</li> * <li>A style tag for CSS (<style />)</li> * <li>Raw text for TEXT</li> * <li>A formatted JavaScript object defined by JSON</li> * <li>An XML document</li> * <li>An binary arraybuffer loaded by XHR</li> * </ul> * Note that if a raw result is requested, but not found, the result will be returned instead. */ p.getResult = function (raw) { if (raw && this._rawResponse) { return this._rawResponse; } return this._response; }; // Overrides abstract method in AbstractRequest p.cancel = function () { this.canceled = true; this._clean(); this._request.abort(); }; // Overrides abstract method in AbstractLoader p.load = function () { if (this._request == null) { this._handleError(); return; } //Events this._request.addEventListener("loadstart", this._handleLoadStartProxy, false); this._request.addEventListener("progress", this._handleProgressProxy, false); this._request.addEventListener("abort", this._handleAbortProxy, false); this._request.addEventListener("error",this._handleErrorProxy, false); this._request.addEventListener("timeout", this._handleTimeoutProxy, false); // Note: We don't get onload in all browsers (earlier FF and IE). onReadyStateChange handles these. this._request.addEventListener("load", this._handleLoadProxy, false); this._request.addEventListener("readystatechange", this._handleReadyStateChangeProxy, false); // Set up a timeout if we don't have XHR2 if (this._xhrLevel == 1) { this._loadTimeout = setTimeout(createjs.proxy(this._handleTimeout, this), this._item.loadTimeout); } // Sometimes we get back 404s immediately, particularly when there is a cross origin request. // note this does not catch in Chrome try { if (!this._item.values || this._item.method == createjs.AbstractLoader.GET) { this._request.send(); } else if (this._item.method == createjs.AbstractLoader.POST) { this._request.send(createjs.RequestUtils.formatQueryString(this._item.values)); } } catch (error) { this.dispatchEvent(new createjs.ErrorEvent("XHR_SEND", null, error)); } }; p.setResponseType = function (type) { this._request.responseType = type; }; /** * Get all the response headers from the XmlHttpRequest. * * <strong>From the docs:</strong> Return all the HTTP headers, excluding headers that are a case-insensitive match * for Set-Cookie or Set-Cookie2, as a single string, with each header line separated by a U+000D CR U+000A LF pair, * excluding the status line, and with each header name and header value separated by a U+003A COLON U+0020 SPACE * pair. * @method getAllResponseHeaders * @return {String} * @since 0.4.1 */ p.getAllResponseHeaders = function () { if (this._request.getAllResponseHeaders instanceof Function) { return this._request.getAllResponseHeaders(); } else { return null; } }; /** * Get a specific response header from the XmlHttpRequest. * * <strong>From the docs:</strong> Returns the header field value from the response of which the field name matches * header, unless the field name is Set-Cookie or Set-Cookie2. * @method getResponseHeader * @param {String} header The header name to retrieve. * @return {String} * @since 0.4.1 */ p.getResponseHeader = function (header) { if (this._request.getResponseHeader instanceof Function) { return this._request.getResponseHeader(header); } else { return null; } }; // protected methods /** * The XHR request has reported progress. * @method _handleProgress * @param {Object} event The XHR progress event. * @private */ p._handleProgress = function (event) { if (!event || event.loaded > 0 && event.total == 0) { return; // Sometimes we get no "total", so just ignore the progress event. } var newEvent = new createjs.ProgressEvent(event.loaded, event.total); this.dispatchEvent(newEvent); }; /** * The XHR request has reported a load start. * @method _handleLoadStart * @param {Object} event The XHR loadStart event. * @private */ p._handleLoadStart = function (event) { clearTimeout(this._loadTimeout); this.dispatchEvent("loadstart"); }; /** * The XHR request has reported an abort event. * @method handleAbort * @param {Object} event The XHR abort event. * @private */ p._handleAbort = function (event) { this._clean(); this.dispatchEvent(new createjs.ErrorEvent("XHR_ABORTED", null, event)); }; /** * The XHR request has reported an error event. * @method _handleError * @param {Object} event The XHR error event. * @private */ p._handleError = function (event) { this._clean(); this.dispatchEvent(new createjs.ErrorEvent(event.message)); }; /** * The XHR request has reported a readyState change. Note that older browsers (IE 7 & 8) do not provide an onload * event, so we must monitor the readyStateChange to determine if the file is loaded. * @method _handleReadyStateChange * @param {Object} event The XHR readyStateChange event. * @private */ p._handleReadyStateChange = function (event) { if (this._request.readyState == 4) { this._handleLoad(); } }; /** * The XHR request has completed. This is called by the XHR request directly, or by a readyStateChange that has * <code>request.readyState == 4</code>. Only the first call to this method will be processed. * @method _handleLoad * @param {Object} event The XHR load event. * @private */ p._handleLoad = function (event) { if (this.loaded) { return; } this.loaded = true; var error = this._checkError(); if (error) { this._handleError(error); return; } this._response = this._getResponse(); this._clean(); this.dispatchEvent(new createjs.Event("complete")); }; /** * The XHR request has timed out. This is called by the XHR request directly, or via a <code>setTimeout</code> * callback. * @method _handleTimeout * @param {Object} [event] The XHR timeout event. This is occasionally null when called by the backup setTimeout. * @private */ p._handleTimeout = function (event) { this._clean(); this.dispatchEvent(new createjs.ErrorEvent("PRELOAD_TIMEOUT", null, event)); }; // Protected /** * Determine if there is an error in the current load. This checks the status of the request for problem codes. Note * that this does not check for an actual response. Currently, it only checks for 404 or 0 error code. * @method _checkError * @return {int} If the request status returns an error code. * @private */ p._checkError = function () { //LM: Probably need additional handlers here, maybe 501 var status = parseInt(this._request.status); switch (status) { case 404: // Not Found case 0: // Not Loaded return new Error(status); } return null; }; /** * Validate the response. Different browsers have different approaches, some of which throw errors when accessed * in other browsers. If there is no response, the <code>_response</code> property will remain null. * @method _getResponse * @private */ p._getResponse = function () { if (this._response != null) { return this._response; } if (this._request.response != null) { return this._request.response; } // Android 2.2 uses .responseText try { if (this._request.responseText != null) { return this._request.responseText; } } catch (e) { } // When loading XML, IE9 does not return .response, instead it returns responseXML.xml try { if (this._request.responseXML != null) { return this._request.responseXML; } } catch (e) { } return null; }; /** * Create an XHR request. Depending on a number of factors, we get totally different results. * <ol><li>Some browsers get an <code>XDomainRequest</code> when loading cross-domain.</li> * <li>XMLHttpRequest are created when available.</li> * <li>ActiveX.XMLHTTP objects are used in older IE browsers.</li> * <li>Text requests override the mime type if possible</li> * <li>Origin headers are sent for crossdomain requests in some browsers.</li> * <li>Binary loads set the response type to "arraybuffer"</li></ol> * @method _createXHR * @param {Object} item The requested item that is being loaded. * @return {Boolean} If an XHR request or equivalent was successfully created. * @private */ p._createXHR = function (item) { // Check for cross-domain loads. We can't fully support them, but we can try. var crossdomain = createjs.RequestUtils.isCrossDomain(item); var headers = {}; // Create the request. Fallback to whatever support we have. var req = null; if (window.XMLHttpRequest) { req = new XMLHttpRequest(); // This is 8 or 9, so use XDomainRequest instead. if (crossdomain && req.withCredentials === undefined && window.XDomainRequest) { req = new XDomainRequest(); } } else { // Old IE versions use a different approach for (var i = 0, l = s.ACTIVEX_VERSIONS.length; i < l; i++) { var axVersion = s.ACTIVEX_VERSIONS[i]; try { req = new ActiveXObject(axVersions); break; } catch (e) {} } if (req == null) { return false; } } // Default to utf-8 for Text requests. if (item.mimeType == null && createjs.RequestUtils.isText(item.type)) { item.mimeType = "text/plain; charset=utf-8"; } // IE9 doesn't support overrideMimeType(), so we need to check for it. if (item.mimeType && req.overrideMimeType) { req.overrideMimeType(item.mimeType); } // Determine the XHR level this._xhrLevel = (typeof req.responseType === "string") ? 2 : 1; var src = null; if (item.method == createjs.AbstractLoader.GET) { src = createjs.RequestUtils.buildPath(item.src, item.values); } else { src = item.src; } // Open the request. Set cross-domain flags if it is supported (XHR level 1 only) req.open(item.method || createjs.AbstractLoader.GET, src, true); if (crossdomain && req instanceof XMLHttpRequest && this._xhrLevel == 1) { headers["Origin"] = location.origin; } // To send data we need to set the Content-type header) if (item.values && item.method == createjs.AbstractLoader.POST) { headers["Content-Type"] = "application/x-www-form-urlencoded"; } if (!crossdomain && !headers["X-Requested-With"]) { headers["X-Requested-With"] = "XMLHttpRequest"; } if (item.headers) { for (var n in item.headers) { headers[n] = item.headers[n]; } } for (n in headers) { req.setRequestHeader(n, headers[n]) } if (req instanceof XMLHttpRequest && item.withCredentials !== undefined) { req.withCredentials = item.withCredentials; } this._request = req; return true; }; /** * A request has completed (or failed or canceled), and needs to be disposed. * @method _clean * @private */ p._clean = function () { clearTimeout(this._loadTimeout); this._request.removeEventListener("loadstart", this._handleLoadStartProxy); this._request.removeEventListener("progress", this._handleProgressProxy); this._request.removeEventListener("abort", this._handleAbortProxy); this._request.removeEventListener("error",this._handleErrorProxy); this._request.removeEventListener("timeout", this._handleTimeoutProxy); this._request.removeEventListener("load", this._handleLoadProxy); this._request.removeEventListener("readystatechange", this._handleReadyStateChangeProxy); }; p.toString = function () { return "[PreloadJS XHRRequest]"; }; createjs.XHRRequest = createjs.promote(XHRRequest, "AbstractRequest"); }()); //############################################################################## // LoadQueue.js //############################################################################## this.createjs = this.createjs || {}; /* TODO: WINDOWS ISSUES * No error for HTML audio in IE 678 * SVG no failure error in IE 67 (maybe 8) TAGS AND XHR * No script complete handler in IE 67 TAGS (XHR is fine) * No XML/JSON in IE6 TAGS * Need to hide loading SVG in Opera TAGS * No CSS onload/readystatechange in Safari or Android TAGS (requires rule checking) * SVG no load or failure in Opera XHR * Reported issues with IE7/8 */ (function () { "use strict"; // constructor /** * The LoadQueue class is the main API for preloading content. LoadQueue is a load manager, which can preload either * a single file, or queue of files. * * <b>Creating a Queue</b><br /> * To use LoadQueue, create a LoadQueue instance. If you want to force tag loading where possible, set the preferXHR * argument to false. * * var queue = new createjs.LoadQueue(true); * * <b>Listening for Events</b><br /> * Add any listeners you want to the queue. Since PreloadJS 0.3.0, the {{#crossLink "EventDispatcher"}}{{/crossLink}} * lets you add as many listeners as you want for events. You can subscribe to the following events:<ul> * <li>{{#crossLink "AbstractLoader/complete:event"}}{{/crossLink}}: fired when a queue completes loading all * files</li> * <li>{{#crossLink "AbstractLoader/error:event"}}{{/crossLink}}: fired when the queue encounters an error with * any file.</li> * <li>{{#crossLink "AbstractLoader/progress:event"}}{{/crossLink}}: Progress for the entire queue has * changed.</li> * <li>{{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}}: A single file has completed loading.</li> * <li>{{#crossLink "LoadQueue/fileprogress:event"}}{{/crossLink}}: Progress for a single file has changes. Note * that only files loaded with XHR (or possibly by plugins) will fire progress events other than 0 or 100%.</li> * </ul> * * queue.on("fileload", handleFileLoad, this); * queue.on("complete", handleComplete, this); * * <b>Adding files and manifests</b><br /> * Add files you want to load using {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} or add multiple files at a * time using a list or a manifest definition using {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}}. Files are * appended to the end of the active queue, so you can use these methods as many times as you like, whenever you * like. * * queue.loadFile("filePath/file.jpg"); * queue.loadFile({id:"image", src:"filePath/file.jpg"}); * queue.loadManifest(["filePath/file.jpg", {id:"image", src:"filePath/file.jpg"}]); * * // Use an external manifest * queue.loadManifest("path/to/manifest.json"); * queue.loadManifest({src:"manifest.json", type:"manifest"}); * * If you pass `false` as the `loadNow` parameter, the queue will not kick of the load of the files, but it will not * stop if it has already been started. Call the {{#crossLink "AbstractLoader/load"}}{{/crossLink}} method to begin * a paused queue. Note that a paused queue will automatically resume when new files are added to it with a * `loadNow` argument of `true`. * * queue.load(); * * <b>File Types</b><br /> * The file type of a manifest item is auto-determined by the file extension. The pattern matching in PreloadJS * should handle the majority of standard file and url formats, and works with common file extensions. If you have * either a non-standard file extension, or are serving the file using a proxy script, then you can pass in a * <code>type</code> property with any manifest item. * * queue.loadFile({src:"path/to/myFile.mp3x", type:createjs.AbstractLoader.SOUND}); * * // Note that PreloadJS will not read a file extension from the query string * queue.loadFile({src:"http://server.com/proxy?file=image.jpg", type:createjs.AbstractLoader.IMAGE}); * * Supported types are defined on the {{#crossLink "AbstractLoader"}}{{/crossLink}} class, and include: * <ul> * <li>{{#crossLink "AbstractLoader/BINARY:property"}}{{/crossLink}}: Raw binary data via XHR</li> * <li>{{#crossLink "AbstractLoader/CSS:property"}}{{/crossLink}}: CSS files</li> * <li>{{#crossLink "AbstractLoader/IMAGE:property"}}{{/crossLink}}: Common image formats</li> * <li>{{#crossLink "AbstractLoader/JAVASCRIPT:property"}}{{/crossLink}}: JavaScript files</li> * <li>{{#crossLink "AbstractLoader/JSON:property"}}{{/crossLink}}: JSON data</li> * <li>{{#crossLink "AbstractLoader/JSONP:property"}}{{/crossLink}}: JSON files cross-domain</li> * <li>{{#crossLink "AbstractLoader/MANIFEST:property"}}{{/crossLink}}: A list of files to load in JSON format, see * {{#crossLink "AbstractLoader/loadManifest"}}{{/crossLink}}</li> * <li>{{#crossLink "AbstractLoader/SOUND:property"}}{{/crossLink}}: Audio file formats</li> * <li>{{#crossLink "AbstractLoader/SPRITESHEET:property"}}{{/crossLink}}: JSON SpriteSheet definiteions. This * will also load sub-images, and provide a {{#crossLink "SpriteSheet"}}{{/crossLink}} instance.</li> * <li>{{#crossLink "AbstractLoader/SVG:property"}}{{/crossLink}}: SVG files</li> * <li>{{#crossLink "AbstractLoader/TEXT:property"}}{{/crossLink}}: Text files - XHR only</li> * <li>{{#crossLink "AbstractLoader/XML:property"}}{{/crossLink}}: XML data</li> * </ul> * * <em>Note: Loader types used to be defined on LoadQueue, but have been moved to AbstractLoader for better * portability of loader classes, which can be used individually now. The properties on LoadQueue still exist, but * are deprecated.</em> * * <b>Handling Results</b><br /> * When a file is finished downloading, a {{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}} event is * dispatched. In an example above, there is an event listener snippet for fileload. Loaded files are usually a * formatted object that can be used immediately, including: * <ul> * <li>Binary: The binary loaded result</li> * <li>CSS: A <link /> tag</li> * <li>Image: An <img /> tag</li> * <li>JavaScript: A <script /> tag</li> * <li>JSON/JSONP: A formatted JavaScript Object</li> * <li>Manifest: A JavaScript object. * <li>Sound: An <audio /> tag</a> * <li>SpriteSheet: A {{#crossLink "SpriteSheet"}}{{/crossLink}} instance, containing loaded images. * <li>SVG: An <object /> tag</li> * <li>Text: Raw text</li> * <li>XML: An XML DOM node</li> * </ul> * * function handleFileLoad(event) { * var item = event.item; // A reference to the item that was passed in to the LoadQueue * var type = item.type; * * // Add any images to the page body. * if (type == createjs.LoadQueue.IMAGE) { * document.body.appendChild(event.result); * } * } * * At any time after the file has been loaded (usually after the queue has completed), any result can be looked up * via its "id" using {{#crossLink "LoadQueue/getResult"}}{{/crossLink}}. If no id was provided, then the * "src" or file path can be used instead, including the `path` defined by a manifest, but <strong>not including</strong> * a base path defined on the LoadQueue. It is recommended to always pass an id if you want to look up content. * * var image = queue.getResult("image"); * document.body.appendChild(image); * * Raw loaded content can be accessed using the <code>rawResult</code> property of the {{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}} * event, or can be looked up using {{#crossLink "LoadQueue/getResult"}}{{/crossLink}}, passing `true` as the 2nd * argument. This is only applicable for content that has been parsed for the browser, specifically: JavaScript, * CSS, XML, SVG, and JSON objects, or anything loaded with XHR. * * var image = queue.getResult("image", true); // load the binary image data loaded with XHR. * * <b>Plugins</b><br /> * LoadQueue has a simple plugin architecture to help process and preload content. For example, to preload audio, * make sure to install the <a href="http://soundjs.com">SoundJS</a> Sound class, which will help load HTML audio, * Flash audio, and WebAudio files. This should be installed <strong>before</strong> loading any audio files. * * queue.installPlugin(createjs.Sound); * * <h4>Known Browser Issues</h4> * <ul> * <li>Browsers without audio support can not load audio files.</li> * <li>Safari on Mac OS X can only play HTML audio if QuickTime is installed</li> * <li>HTML Audio tags will only download until their <code>canPlayThrough</code> event is fired. Browsers other * than Chrome will continue to download in the background.</li> * <li>When loading scripts using tags, they are automatically added to the document.</li> * <li>Scripts loaded via XHR may not be properly inspectable with browser tools.</li> * <li>IE6 and IE7 (and some other browsers) may not be able to load XML, Text, or JSON, since they require * XHR to work.</li> * <li>Content loaded via tags will not show progress, and will continue to download in the background when * canceled, although no events will be dispatched.</li> * </ul> * * @class LoadQueue * @param {Boolean} [preferXHR=true] Determines whether the preload instance will favor loading with XHR (XML HTTP * Requests), or HTML tags. When this is `false`, the queue will use tag loading when possible, and fall back on XHR * when necessary. * @param {String} [basePath=""] A path that will be prepended on to the source parameter of all items in the queue * before they are loaded. Sources beginning with a protocol such as `http://` or a relative path such as `../` * will not receive a base path. * @param {String|Boolean} [crossOrigin=""] An optional flag to support images loaded from a CORS-enabled server. To * use it, set this value to `true`, which will default the crossOrigin property on images to "Anonymous". Any * string value will be passed through, but only "" and "Anonymous" are recommended. <strong>Note: The crossOrigin * parameter is deprecated. Use LoadItem.crossOrigin instead</strong> * * @constructor * @extends AbstractLoader */ function LoadQueue(preferXHR, basePath, crossOrigin) { this.AbstractLoader_constructor(); this.init(preferXHR, basePath, crossOrigin); } var p = createjs.extend(LoadQueue, createjs.AbstractLoader); var s = LoadQueue; /** * <strong>REMOVED</strong>. Removed in favor of using `MySuperClass_constructor`. * See {{#crossLink "Utility Methods/extend"}}{{/crossLink}} and {{#crossLink "Utility Methods/promote"}}{{/crossLink}} * for details. * * There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance. * * @method initialize * @protected * @deprecated */ // p.initialize = function() {}; // searchable for devs wondering where it is. /** * An internal initialization method, which is used for initial set up, but also to reset the LoadQueue. * @method init * @param preferXHR * @param basePath * @param crossOrigin * @private */ p.init = function(preferXHR, basePath, crossOrigin) { // public properties /** * @property useXHR * @type {Boolean} * @readOnly * @default true * @deprecated Use preferXHR instead. */ this.useXHR = true; /** * Try and use XMLHttpRequest (XHR) when possible. Note that LoadQueue will default to tag loading or XHR * loading depending on the requirements for a media type. For example, HTML audio can not be loaded with XHR, * and plain text can not be loaded with tags, so it will default the the correct type instead of using the * user-defined type. * @type {Boolean} * @default true * @since 0.6.0 */ this.preferXHR = true; //TODO: Get/Set this._preferXHR = true; this.setPreferXHR(preferXHR); /** * Determines if the LoadQueue will stop processing the current queue when an error is encountered. * @property stopOnError * @type {Boolean} * @default false */ this.stopOnError = false; /** * Ensure loaded scripts "complete" in the order they are specified. Loaded scripts are added to the document head * once they are loaded. Scripts loaded via tags will load one-at-a-time when this property is `true`, whereas * scripts loaded using XHR can load in any order, but will "finish" and be added to the document in the order * specified. * * Any items can be set to load in order by setting the {{#crossLink "maintainOrder:property"}}{{/crossLink}} * property on the load item, or by ensuring that only one connection can be open at a time using * {{#crossLink "LoadQueue/setMaxConnections"}}{{/crossLink}}. Note that when the `maintainScriptOrder` property * is set to `true`, scripts items are automatically set to `maintainOrder=true`, and changing the * `maintainScriptOrder` to `false` during a load will not change items already in a queue. * * <h4>Example</h4> * * var queue = new createjs.LoadQueue(); * queue.setMaxConnections(3); // Set a higher number to load multiple items at once * queue.maintainScriptOrder = true; // Ensure scripts are loaded in order * queue.loadManifest([ * "script1.js", * "script2.js", * "image.png", // Load any time * {src: "image2.png", maintainOrder: true} // Will wait for script2.js * "image3.png", * "script3.js" // Will wait for image2.png before loading (or completing when loading with XHR) * ]); * * @property maintainScriptOrder * @type {Boolean} * @default true */ this.maintainScriptOrder = true; /** * The next preload queue to process when this one is complete. If an error is thrown in the current queue, and * {{#crossLink "LoadQueue/stopOnError:property"}}{{/crossLink}} is `true`, the next queue will not be processed. * @property next * @type {LoadQueue} * @default null */ this.next = null; // protected properties /** * Whether the queue is currently paused or not. * @property _paused * @type {boolean} * @private */ this._paused = false; /** * A path that will be prepended on to the item's {{#crossLink "LoadItem/src:property"}}{{/crossLink}}. The * `_basePath` property will only be used if an item's source is relative, and does not include a protocol such * as `http://`, or a relative path such as `../`. * @property _basePath * @type {String} * @private * @since 0.3.1 */ this._basePath = basePath; /** * An optional flag to set on images that are loaded using PreloadJS, which enables CORS support. Images loaded * cross-domain by servers that support CORS require the crossOrigin flag to be loaded and interacted with by * a canvas. When loading locally, or with a server with no CORS support, this flag can cause other security issues, * so it is recommended to only set it if you are sure the server supports it. Currently, supported values are "" * and "Anonymous". * @property _crossOrigin * @type {String} * @default "" * @private * @since 0.4.1 */ this._crossOrigin = crossOrigin; /** * An object hash of callbacks that are fired for each file type before the file is loaded, giving plugins the * ability to override properties of the load. Please see the {{#crossLink "LoadQueue/installPlugin"}}{{/crossLink}} * method for more information. * @property _typeCallbacks * @type {Object} * @private */ this._typeCallbacks = {}; /** * An object hash of callbacks that are fired for each file extension before the file is loaded, giving plugins the * ability to override properties of the load. Please see the {{#crossLink "LoadQueue/installPlugin"}}{{/crossLink}} * method for more information. * @property _extensionCallbacks * @type {null} * @private */ this._extensionCallbacks = {}; /** * Determines if the loadStart event was dispatched already. This event is only fired one time, when the first * file is requested. * @property _loadStartWasDispatched * @type {Boolean} * @default false * @private */ this._loadStartWasDispatched = false; /** * The number of maximum open connections that a loadQueue tries to maintain. Please see * {{#crossLink "LoadQueue/setMaxConnections"}}{{/crossLink}} for more information. * @property _maxConnections * @type {Number} * @default 1 * @private */ this._maxConnections = 1; /** * Determines if there is currently a script loading. This helps ensure that only a single script loads at once when * using a script tag to do preloading. * @property _currentlyLoadingScript * @type {Boolean} * @private */ this._currentlyLoadingScript = null; /** * An array containing the currently downloading files. * @property _currentLoads * @type {Array} * @private */ this._currentLoads = []; /** * An array containing the queued items that have not yet started downloading. * @property _loadQueue * @type {Array} * @private */ this._loadQueue = []; /** * An array containing downloads that have not completed, so that the LoadQueue can be properly reset. * @property _loadQueueBackup * @type {Array} * @private */ this._loadQueueBackup = []; /** * An object hash of items that have finished downloading, indexed by the {{#crossLink "LoadItem"}}{{/crossLink}} * id. * @property _loadItemsById * @type {Object} * @private */ this._loadItemsById = {}; /** * An object hash of items that have finished downloading, indexed by {{#crossLink "LoadItem"}}{{/crossLink}} * source. * @property _loadItemsBySrc * @type {Object} * @private */ this._loadItemsBySrc = {}; /** * An object hash of loaded items, indexed by the ID of the {{#crossLink "LoadItem"}}{{/crossLink}}. * @property _loadedResults * @type {Object} * @private */ this._loadedResults = {}; /** * An object hash of un-parsed loaded items, indexed by the ID of the {{#crossLink "LoadItem"}}{{/crossLink}}. * @property _loadedRawResults * @type {Object} * @private */ this._loadedRawResults = {}; /** * The number of items that have been requested. This helps manage an overall progress without knowing how large * the files are before they are downloaded. This does not include items inside of loaders such as the * {{#crossLink "ManifestLoader"}}{{/crossLink}}. * @property _numItems * @type {Number} * @default 0 * @private */ this._numItems = 0; /** * The number of items that have completed loaded. This helps manage an overall progress without knowing how large * the files are before they are downloaded. * @property _numItemsLoaded * @type {Number} * @default 0 * @private */ this._numItemsLoaded = 0; /** * A list of scripts in the order they were requested. This helps ensure that scripts are "completed" in the right * order. * @property _scriptOrder * @type {Array} * @private */ this._scriptOrder = []; /** * A list of scripts that have been loaded. Items are added to this list as <code>null</code> when they are * requested, contain the loaded item if it has completed, but not been dispatched to the user, and <code>true</true> * once they are complete and have been dispatched. * @property _loadedScripts * @type {Array} * @private */ this._loadedScripts = []; /** * The last progress amount. This is used to suppress duplicate progress events. * @property _lastProgress * @type {Number} * @private * @since 0.6.0 */ this._lastProgress = NaN; /** * An internal list of all the default Loaders that are included with PreloadJS. Before an item is loaded, the * available loader list is iterated, in the order they are included, and as soon as a loader indicates it can * handle the content, it will be selected. The default loader, ({{#crossLink "TextLoader"}}{{/crossLink}} is * last in the list, so it will be used if no other match is found. Typically, loaders will match based on the * {{#crossLink "LoadItem/type"}}{{/crossLink}}, which is automatically determined using the file extension of * the {{#crossLink "LoadItem/src:property"}}{{/crossLink}}. * * Loaders can be removed from PreloadJS by simply not including them. * * Custom loaders installed using {{#crossLink "registerLoader"}}{{/crossLink}} will be prepended to this list * so that they are checked first. * @property _availableLoaders * @type {Array} * @private * @since 0.6.0 */ this._availableLoaders = [ createjs.ImageLoader, createjs.JavaScriptLoader, createjs.CSSLoader, createjs.JSONLoader, createjs.JSONPLoader, createjs.SoundLoader, createjs.ManifestLoader, createjs.SpriteSheetLoader, createjs.XMLLoader, createjs.SVGLoader, createjs.BinaryLoader, createjs.VideoLoader, createjs.TextLoader, ]; /** * The number of built in loaders, so they can't be removed by {{#crossLink "unregisterLoader"}}{{/crossLink}. * @property _defaultLoaderLength * @type {Number} * @private * @since 0.6.0 */ this._defaultLoaderLength = this._availableLoaders.length; }; // static properties /** * The time in milliseconds to assume a load has failed. An {{#crossLink "AbstractLoader/error:event"}}{{/crossLink}} * event is dispatched if the timeout is reached before any data is received. * @property loadTimeout * @type {Number} * @default 8000 * @static * @since 0.4.1 * @deprecated In favour of LoadItem.loadTimeout */ s.loadTimeout = 8000; /** * The time in milliseconds to assume a load has failed. * @property LOAD_TIMEOUT * @type {Number} * @default 0 * @deprecated in favor of the {{#crossLink "LoadQueue/loadTimeout:property"}}{{/crossLink}} property. */ s.LOAD_TIMEOUT = 0; // Preload Types /** * @property BINARY * @type {String} * @default binary * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/BINARY:property"}}{{/crossLink}} instead. */ s.BINARY = createjs.AbstractLoader.BINARY; /** * @property CSS * @type {String} * @default css * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/CSS:property"}}{{/crossLink}} instead. */ s.CSS = createjs.AbstractLoader.CSS; /** * @property IMAGE * @type {String} * @default image * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/CSS:property"}}{{/crossLink}} instead. */ s.IMAGE = createjs.AbstractLoader.IMAGE; /** * @property JAVASCRIPT * @type {String} * @default javascript * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/JAVASCRIPT:property"}}{{/crossLink}} instead. */ s.JAVASCRIPT = createjs.AbstractLoader.JAVASCRIPT; /** * @property JSON * @type {String} * @default json * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/JSON:property"}}{{/crossLink}} instead. */ s.JSON = createjs.AbstractLoader.JSON; /** * @property JSONP * @type {String} * @default jsonp * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/JSONP:property"}}{{/crossLink}} instead. */ s.JSONP = createjs.AbstractLoader.JSONP; /** * @property MANIFEST * @type {String} * @default manifest * @static * @since 0.4.1 * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/MANIFEST:property"}}{{/crossLink}} instead. */ s.MANIFEST = createjs.AbstractLoader.MANIFEST; /** * @property SOUND * @type {String} * @default sound * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/JAVASCRIPT:property"}}{{/crossLink}} instead. */ s.SOUND = createjs.AbstractLoader.SOUND; /** * @property VIDEO * @type {String} * @default video * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/JAVASCRIPT:property"}}{{/crossLink}} instead. */ s.VIDEO = createjs.AbstractLoader.VIDEO; /** * @property SVG * @type {String} * @default svg * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/SVG:property"}}{{/crossLink}} instead. */ s.SVG = createjs.AbstractLoader.SVG; /** * @property TEXT * @type {String} * @default text * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/TEXT:property"}}{{/crossLink}} instead. */ s.TEXT = createjs.AbstractLoader.TEXT; /** * @property XML * @type {String} * @default xml * @static * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/XML:property"}}{{/crossLink}} instead. */ s.XML = createjs.AbstractLoader.XML; /** * @property POST * @type {string} * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/POST:property"}}{{/crossLink}} instead. */ s.POST = createjs.AbstractLoader.POST; /** * @property GET * @type {string} * @deprecated Use the AbstractLoader {{#crossLink "AbstractLoader/GET:property"}}{{/crossLink}} instead. */ s.GET = createjs.AbstractLoader.GET; // events /** * This event is fired when an individual file has loaded, and been processed. * @event fileload * @param {Object} target The object that dispatched the event. * @param {String} type The event type. * @param {Object} item The file item which was specified in the {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} * or {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}} call. If only a string path or tag was specified, the * object will contain that value as a `src` property. * @param {Object} result The HTML tag or parsed result of the loaded item. * @param {Object} rawResult The unprocessed result, usually the raw text or binary data before it is converted * to a usable object. * @since 0.3.0 */ /** * This {{#crossLink "ProgressEvent"}}{{/crossLink}} that is fired when an an individual file's progress changes. * @event fileprogress * @since 0.3.0 */ /** * This event is fired when an individual file starts to load. * @event filestart * @param {Object} The object that dispatched the event. * @param {String} type The event type. * @param {Object} item The file item which was specified in the {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} * or {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}} call. If only a string path or tag was specified, the * object will contain that value as a property. */ // public methods /** * Register a custom loaders class. New loaders are given precedence over loaders added earlier and default loaders. * It is recommended that loaders extend {{#crossLink "AbstractLoader"}}{{/crossLink}}. Loaders can only be added * once, and will be prepended to the list of available loaders. * @method registerLoader * @param {Class} The AbstractLoader class to add. * @since 0.6.0 */ p.registerLoader = function (loader) { if (!loader || !loader.canLoadItem) { throw new Error("loader is of an incorrect type."); } else if (this._availableLoaders.indexOf(loader) != -1) { throw new Error("loader already exists."); //LM: Maybe just silently fail here } this._availableLoaders.unshift(loader); }; /** * Remove a custom loader added usig {{#crossLink "registerLoader"}}{{/crossLink}}. Only custom loaders can be * unregistered, the default loaders will always be available. * @method unregisterLoader * @param {Class} loader The AbstractLoader class to remove */ p.unregisterLoader = function (loader) { var idx = this._availableLoaders.indexOf(loader); if (idx != -1 && idx < this._defaultLoaderLength - 1) { this._availableLoaders.splice(idx, 1); } }; /** * @method setUseXHR * @param {Boolean} value The new useXHR value to set. * @return {Boolean} The new useXHR value. If XHR is not supported by the browser, this will return false, even if * the provided value argument was true. * @since 0.3.0 * @deprecated use the {{#crossLink "preferXHR:property"}}{{/crossLink}} property, or the {{#crossLink "setUseXHR"}}{{/crossLink}} * method instead. */ p.setUseXHR = function (value) { return this.setPreferXHR(value); }; /** * Change the {{#crossLink "preferXHR:property"}}{{/crossLink}} value. Note that if this is set to `true`, it may * fail, or be ignored depending on the browser's capabilities and the load type. * @method setPreferXHR * @param {Boolean} value * @returns {Boolean} The value of {{#crossLink "preferXHR"}}{{/crossLink}} that was successfully set. * @since 0.6.0 */ p.setPreferXHR = function(value) { // Determine if we can use XHR. XHR defaults to TRUE, but the browser may not support it. //TODO: Should we be checking for the other XHR types? Might have to do a try/catch on the different types similar to createXHR. this.preferXHR = (value != false && window.XMLHttpRequest != null); return this.preferXHR; }; /** * Stops all queued and loading items, and clears the queue. This also removes all internal references to loaded * content, and allows the queue to be used again. * @method removeAll * @since 0.3.0 */ p.removeAll = function () { this.remove(); }; /** * Stops an item from being loaded, and removes it from the queue. If nothing is passed, all items are removed. * This also removes internal references to loaded item(s). * * <h4>Example</h4> * * queue.loadManifest([ * {src:"test.png", id:"png"}, * {src:"test.jpg", id:"jpg"}, * {src:"test.mp3", id:"mp3"} * ]); * queue.remove("png"); // Single item by ID * queue.remove("png", "test.jpg"); // Items as arguments. Mixed id and src. * queue.remove(["test.png", "jpg"]); // Items in an Array. Mixed id and src. * * @method remove * @param {String | Array} idsOrUrls* The id or ids to remove from this queue. You can pass an item, an array of * items, or multiple items as arguments. * @since 0.3.0 */ p.remove = function (idsOrUrls) { var args = null; if (idsOrUrls && !(idsOrUrls instanceof Array)) { args = [idsOrUrls]; } else if (idsOrUrls) { args = idsOrUrls; } else if (arguments.length > 0) { return; } var itemsWereRemoved = false; // Destroy everything if (!args) { this.close(); for (var n in this._loadItemsById) { this._disposeItem(this._loadItemsById[n]); } this.init(this.preferXHR, this._basePath); // Remove specific items } else { while (args.length) { var item = args.pop(); var r = this.getResult(item); //Remove from the main load Queue for (i = this._loadQueue.length - 1; i >= 0; i--) { loadItem = this._loadQueue[i].getItem(); if (loadItem.id == item || loadItem.src == item) { this._loadQueue.splice(i, 1)[0].cancel(); break; } } //Remove from the backup queue for (i = this._loadQueueBackup.length - 1; i >= 0; i--) { loadItem = this._loadQueueBackup[i].getItem(); if (loadItem.id == item || loadItem.src == item) { this._loadQueueBackup.splice(i, 1)[0].cancel(); break; } } if (r) { this._disposeItem(this.getItem(item)); } else { for (var i = this._currentLoads.length - 1; i >= 0; i--) { var loadItem = this._currentLoads[i].getItem(); if (loadItem.id == item || loadItem.src == item) { this._currentLoads.splice(i, 1)[0].cancel(); itemsWereRemoved = true; break; } } } } // If this was called during a load, try to load the next item. if (itemsWereRemoved) { this._loadNext(); } } }; /** * Stops all open loads, destroys any loaded items, and resets the queue, so all items can * be reloaded again by calling {{#crossLink "AbstractLoader/load"}}{{/crossLink}}. Items are not removed from the * queue. To remove items use the {{#crossLink "LoadQueue/remove"}}{{/crossLink}} or * {{#crossLink "LoadQueue/removeAll"}}{{/crossLink}} method. * @method reset * @since 0.3.0 */ p.reset = function () { this.close(); for (var n in this._loadItemsById) { this._disposeItem(this._loadItemsById[n]); } //Reset the queue to its start state var a = []; for (var i = 0, l = this._loadQueueBackup.length; i < l; i++) { a.push(this._loadQueueBackup[i].getItem()); } this.loadManifest(a, false); }; /** * Register a plugin. Plugins can map to load types (sound, image, etc), or specific extensions (png, mp3, etc). * Currently, only one plugin can exist per type/extension. * * When a plugin is installed, a <code>getPreloadHandlers()</code> method will be called on it. For more information * on this method, check out the {{#crossLink "SamplePlugin/getPreloadHandlers"}}{{/crossLink}} method in the * {{#crossLink "SamplePlugin"}}{{/crossLink}} class. * * Before a file is loaded, a matching plugin has an opportunity to modify the load. If a `callback` is returned * from the {{#crossLink "SamplePlugin/getPreloadHandlers"}}{{/crossLink}} method, it will be invoked first, and its * result may cancel or modify the item. The callback method can also return a `completeHandler` to be fired when * the file is loaded, or a `tag` object, which will manage the actual download. For more information on these * methods, check out the {{#crossLink "SamplePlugin/preloadHandler"}}{{/crossLink}} and {{#crossLink "SamplePlugin/fileLoadHandler"}}{{/crossLink}} * methods on the {{#crossLink "SamplePlugin"}}{{/crossLink}}. * * @method installPlugin * @param {Function} plugin The plugin class to install. */ p.installPlugin = function (plugin) { if (plugin == null) { return; } if (plugin.getPreloadHandlers != null) { var map = plugin.getPreloadHandlers(); map.scope = plugin; if (map.types != null) { for (var i = 0, l = map.types.length; i < l; i++) { this._typeCallbacks[map.types[i]] = map; } } if (map.extensions != null) { for (i = 0, l = map.extensions.length; i < l; i++) { this._extensionCallbacks[map.extensions[i]] = map; } } } }; /** * Set the maximum number of concurrent connections. Note that browsers and servers may have a built-in maximum * number of open connections, so any additional connections may remain in a pending state until the browser * opens the connection. When loading scripts using tags, and when {{#crossLink "LoadQueue/maintainScriptOrder:property"}}{{/crossLink}} * is `true`, only one script is loaded at a time due to browser limitations. * * <h4>Example</h4> * * var queue = new createjs.LoadQueue(); * queue.setMaxConnections(10); // Allow 10 concurrent loads * * @method setMaxConnections * @param {Number} value The number of concurrent loads to allow. By default, only a single connection per LoadQueue * is open at any time. */ p.setMaxConnections = function (value) { this._maxConnections = value; if (!this._paused && this._loadQueue.length > 0) { this._loadNext(); } }; /** * Load a single file. To add multiple files at once, use the {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}} * method. * * Files are always appended to the current queue, so this method can be used multiple times to add files. * To clear the queue first, use the {{#crossLink "AbstractLoader/close"}}{{/crossLink}} method. * @method loadFile * @param {LoadItem|Object|String} file The file object or path to load. A file can be either * <ul> * <li>A {{#crossLink "LoadItem"}}{{/crossLink}} instance</li> * <li>An object containing properties defined by {{#crossLink "LoadItem"}}{{/crossLink}}</li> * <li>OR A string path to a resource. Note that this kind of load item will be converted to a {{#crossLink "LoadItem"}}{{/crossLink}} * in the background.</li> * </ul> * @param {Boolean} [loadNow=true] Kick off an immediate load (true) or wait for a load call (false). The default * value is true. If the queue is paused using {{#crossLink "LoadQueue/setPaused"}}{{/crossLink}}, and the value is * `true`, the queue will resume automatically. * @param {String} [basePath] A base path that will be prepended to each file. The basePath argument overrides the * path specified in the constructor. Note that if you load a manifest using a file of type {{#crossLink "AbstractLoader/MANIFEST:property"}}{{/crossLink}}, * its files will <strong>NOT</strong> use the basePath parameter. <strong>The basePath parameter is deprecated.</strong> * This parameter will be removed in a future version. Please either use the `basePath` parameter in the LoadQueue * constructor, or a `path` property in a manifest definition. */ p.loadFile = function (file, loadNow, basePath) { if (file == null) { var event = new createjs.ErrorEvent("PRELOAD_NO_FILE"); this._sendError(event); return; } this._addItem(file, null, basePath); if (loadNow !== false) { this.setPaused(false); } else { this.setPaused(true); } }; /** * Load an array of files. To load a single file, use the {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} method. * The files in the manifest are requested in the same order, but may complete in a different order if the max * connections are set above 1 using {{#crossLink "LoadQueue/setMaxConnections"}}{{/crossLink}}. Scripts will load * in the right order as long as {{#crossLink "LoadQueue/maintainScriptOrder"}}{{/crossLink}} is true (which is * default). * * Files are always appended to the current queue, so this method can be used multiple times to add files. * To clear the queue first, use the {{#crossLink "AbstractLoader/close"}}{{/crossLink}} method. * @method loadManifest * @param {Array|String|Object} manifest An list of files to load. The loadManifest call supports four types of * manifests: * <ol> * <li>A string path, which points to a manifest file, which is a JSON file that contains a "manifest" property, * which defines the list of files to load, and can optionally contain a "path" property, which will be * prepended to each file in the list.</li> * <li>An object which defines a "src", which is a JSON or JSONP file. A "callback" can be defined for JSONP * file. The JSON/JSONP file should contain a "manifest" property, which defines the list of files to load, * and can optionally contain a "path" property, which will be prepended to each file in the list.</li> * <li>An object which contains a "manifest" property, which defines the list of files to load, and can * optionally contain a "path" property, which will be prepended to each file in the list.</li> * <li>An Array of files to load.</li> * </ol> * * Each "file" in a manifest can be either: * <ul> * <li>A {{#crossLink "LoadItem"}}{{/crossLink}} instance</li> * <li>An object containing properties defined by {{#crossLink "LoadItem"}}{{/crossLink}}</li> * <li>OR A string path to a resource. Note that this kind of load item will be converted to a {{#crossLink "LoadItem"}}{{/crossLink}} * in the background.</li> * </ul> * * @param {Boolean} [loadNow=true] Kick off an immediate load (true) or wait for a load call (false). The default * value is true. If the queue is paused using {{#crossLink "LoadQueue/setPaused"}}{{/crossLink}} and this value is * `true`, the queue will resume automatically. * @param {String} [basePath] A base path that will be prepended to each file. The basePath argument overrides the * path specified in the constructor. Note that if you load a manifest using a file of type {{#crossLink "LoadQueue/MANIFEST:property"}}{{/crossLink}}, * its files will <strong>NOT</strong> use the basePath parameter. <strong>The basePath parameter is deprecated.</strong> * This parameter will be removed in a future version. Please either use the `basePath` parameter in the LoadQueue * constructor, or a `path` property in a manifest definition. */ p.loadManifest = function (manifest, loadNow, basePath) { var fileList = null; var path = null; // Array-based list of items if (manifest instanceof Array) { if (manifest.length == 0) { var event = new createjs.ErrorEvent("PRELOAD_MANIFEST_EMPTY"); this._sendError(event); return; } fileList = manifest; // String-based. Only file manifests can be specified this way. Any other types will cause an error when loaded. } else if (typeof(manifest) === "string") { fileList = [ { src: manifest, type: s.MANIFEST } ]; } else if (typeof(manifest) == "object") { // An object that defines a manifest path if (manifest.src !== undefined) { if (manifest.type == null) { manifest.type = s.MANIFEST; } else if (manifest.type != s.MANIFEST) { var event = new createjs.ErrorEvent("PRELOAD_MANIFEST_TYPE"); this._sendError(event); } fileList = [manifest]; // An object that defines a manifest } else if (manifest.manifest !== undefined) { fileList = manifest.manifest; path = manifest.path; } // Unsupported. This will throw an error. } else { var event = new createjs.ErrorEvent("PRELOAD_MANIFEST_NULL"); this._sendError(event); return; } for (var i = 0, l = fileList.length; i < l; i++) { this._addItem(fileList[i], path, basePath); } if (loadNow !== false) { this.setPaused(false); } else { this.setPaused(true); } }; /** * Start a LoadQueue that was created, but not automatically started. * @method load */ p.load = function () { this.setPaused(false); }; /** * Look up a {{#crossLink "LoadItem"}}{{/crossLink}} using either the "id" or "src" that was specified when loading it. Note that if no "id" was * supplied with the load item, the ID will be the "src", including a `path` property defined by a manifest. The * `basePath` will not be part of the ID. * @method getItem * @param {String} value The <code>id</code> or <code>src</code> of the load item. * @return {Object} The load item that was initially requested using {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} * or {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}}. This object is also returned via the {{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}} * event as the `item` parameter. */ p.getItem = function (value) { return this._loadItemsById[value] || this._loadItemsBySrc[value]; }; /** * Look up a loaded result using either the "id" or "src" that was specified when loading it. Note that if no "id" * was supplied with the load item, the ID will be the "src", including a `path` property defined by a manifest. The * `basePath` will not be part of the ID. * @method getResult * @param {String} value The <code>id</code> or <code>src</code> of the load item. * @param {Boolean} [rawResult=false] Return a raw result instead of a formatted result. This applies to content * loaded via XHR such as scripts, XML, CSS, and Images. If there is no raw result, the formatted result will be * returned instead. * @return {Object} A result object containing the content that was loaded, such as: * <ul> * <li>An image tag (<image />) for images</li> * <li>A script tag for JavaScript (<script />). Note that scripts are automatically added to the HTML * DOM.</li> * <li>A style tag for CSS (<style /> or <link >)</li> * <li>Raw text for TEXT</li> * <li>A formatted JavaScript object defined by JSON</li> * <li>An XML document</li> * <li>A binary arraybuffer loaded by XHR</li> * <li>An audio tag (<audio >) for HTML audio. Note that it is recommended to use SoundJS APIs to play * loaded audio. Specifically, audio loaded by Flash and WebAudio will return a loader object using this method * which can not be used to play audio back.</li> * </ul> * This object is also returned via the {{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}} event as the 'item` * parameter. Note that if a raw result is requested, but not found, the result will be returned instead. */ p.getResult = function (value, rawResult) { var item = this._loadItemsById[value] || this._loadItemsBySrc[value]; if (item == null) { return null; } var id = item.id; if (rawResult && this._loadedRawResults[id]) { return this._loadedRawResults[id]; } return this._loadedResults[id]; }; /** * Generate an list of items loaded by this queue. * @method getItems * @param {Boolean} loaded Determines if only items that have been loaded should be returned. If false, in-progress * and failed load items will also be included. * @returns {Array} A list of objects that have been loaded. Each item includes the {{#crossLink "LoadItem"}}{{/crossLink}}, * result, and rawResult. * @since 0.6.0 */ p.getItems = function(loaded) { var arr = []; for (var i= 0, l=this._loadQueueBackup.length; i<l; i++) { var loader = this._loadQueueBackup[i] var item = loader.getItem(); if (loaded === true && !loader.loaded) { continue; } arr.push({ item: item, result: this.getResult(item.id), rawResult: this.getResult(item.id, true) }); } return arr; }; /** * Pause or resume the current load. Active loads will not be cancelled, but the next items in the queue will not * be processed when active loads complete. LoadQueues are not paused by default. * * Note that if new items are added to the queue using {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} or * {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}}, a paused queue will be resumed, unless the `loadNow` * argument is `false`. * @method setPaused * @param {Boolean} value Whether the queue should be paused or not. */ p.setPaused = function (value) { this._paused = value; if (!this._paused) { this._loadNext(); } }; /** * Close the active queue. Closing a queue completely empties the queue, and prevents any remaining items from * starting to download. Note that currently any active loads will remain open, and events may be processed. * * To stop and restart a queue, use the {{#crossLink "LoadQueue/setPaused"}}{{/crossLink}} method instead. * @method close */ p.close = function () { while (this._currentLoads.length) { this._currentLoads.pop().cancel(); } this._scriptOrder.length = 0; this._loadedScripts.length = 0; this.loadStartWasDispatched = false; this._itemCount = 0; this._lastProgress = NaN; }; // protected methods /** * Add an item to the queue. Items are formatted into a usable object containing all the properties necessary to * load the content. The load queue is populated with the loader instance that handles preloading, and not the load * item that was passed in by the user. To look up the load item by id or src, use the {{#crossLink "LoadQueue.getItem"}}{{/crossLink}} * method. * @method _addItem * @param {String|Object} value The item to add to the queue. * @param {String} [path] An optional path prepended to the `src`. The path will only be prepended if the src is * relative, and does not start with a protocol such as `http://`, or a path like `../`. If the LoadQueue was * provided a {{#crossLink "_basePath"}}{{/crossLink}}, then it will optionally be prepended after. * @param {String} [basePath] <strong>Deprecated</strong>An optional basePath passed into a {{#crossLink "LoadQueue/loadManifest"}}{{/crossLink}} * or {{#crossLink "LoadQueue/loadFile"}}{{/crossLink}} call. This parameter will be removed in a future tagged * version. * @private */ p._addItem = function (value, path, basePath) { var item = this._createLoadItem(value, path, basePath); // basePath and manifest path are added to the src. if (item == null) { return; } // Sometimes plugins or types should be skipped. var loader = this._createLoader(item); if (loader != null) { item._loader = loader; this._loadQueue.push(loader); this._loadQueueBackup.push(loader); this._numItems++; this._updateProgress(); // Only worry about script order when using XHR to load scripts. Tags are only loading one at a time. if ((this.maintainScriptOrder && item.type == createjs.LoadQueue.JAVASCRIPT //&& loader instanceof createjs.XHRLoader //NOTE: Have to track all JS files this way ) || item.maintainOrder === true) { this._scriptOrder.push(item); this._loadedScripts.push(null); } } }; /** * Create a refined {{#crossLink "LoadItem"}}{{/crossLink}}, which contains all the required properties. The type of * item is determined by browser support, requirements based on the file type, and developer settings. For example, * XHR is only used for file types that support it in new browsers. * * Before the item is returned, any plugins registered to handle the type or extension will be fired, which may * alter the load item. * @method _createLoadItem * @param {String | Object | HTMLAudioElement | HTMLImageElement} value The item that needs to be preloaded. * @param {String} [path] A path to prepend to the item's source. Sources beginning with http:// or similar will * not receive a path. Since PreloadJS 0.4.1, the src will be modified to include the `path` and {{#crossLink "LoadQueue/_basePath:property"}}{{/crossLink}} * when it is added. * @param {String} [basePath] <strong>Deprectated</strong> A base path to prepend to the items source in addition to * the path argument. * @return {Object} The loader instance that will be used. * @private */ p._createLoadItem = function (value, path, basePath) { var item = createjs.LoadItem.create(value); if (item == null) { return null; } // Determine Extension, etc. var match = createjs.RequestUtils.parseURI(item.src); if (match.extension) { item.ext = match.extension; } if (item.type == null) { item.type = createjs.RequestUtils.getTypeByExtension(item.ext); } // Inject path & basePath var bp = ""; // Store the generated basePath var useBasePath = basePath || this._basePath; var autoId = item.src; if (!match.absolute && !match.relative) { if (path) { bp = path; var pathMatch = createjs.RequestUtils.parseURI(path); autoId = path + autoId; // Also append basePath if (useBasePath != null && !pathMatch.absolute && !pathMatch.relative) { bp = useBasePath + bp; } } else if (useBasePath != null) { bp = useBasePath; } } item.src = bp + item.src; item.path = bp; // If there's no id, set one now. if (item.id === undefined || item.id === null || item.id === "") { item.id = autoId; } // Give plugins a chance to modify the loadItem: var customHandler = this._typeCallbacks[item.type] || this._extensionCallbacks[item.ext]; if (customHandler) { // Plugins are now passed both the full source, as well as a combined path+basePath (appropriately) var result = customHandler.callback.call(customHandler.scope, item, this); // The plugin will handle the load, or has canceled it. Ignore it. if (result === false) { return null; // Load as normal: } else if (result === true) { // Do Nothing // Result is a loader class: } else if (result != null) { item._loader = result; } // Update the extension in case the type changed: match = createjs.RequestUtils.parseURI(item.src); if (match.extension != null) { item.ext = match.extension; } } // Store the item for lookup. This also helps clean-up later. this._loadItemsById[item.id] = item; this._loadItemsBySrc[item.src] = item; if (item.loadTimeout == null) { item.loadTimeout = s.loadTimeout; } if (item.crossOrigin == null) { item.crossOrigin = this._crossOrigin; } return item; }; /** * Create a loader for a load item. * @method _createLoader * @param {Object} item A formatted load item that can be used to generate a loader. * @return {AbstractLoader} A loader that can be used to load content. * @private */ p._createLoader = function (item) { if (item._loader != null) { // A plugin already specified a loader return item._loader; } // Initially, try and use the provided/supported XHR mode: var preferXHR = this.preferXHR; for (var i = 0; i < this._availableLoaders.length; i++) { var loader = this._availableLoaders[i]; if (loader && loader.canLoadItem(item)) { return new loader(item, preferXHR); } } // TODO: Log error (requires createjs.log) return null; }; /** * Load the next item in the queue. If the queue is empty (all items have been loaded), then the complete event * is processed. The queue will "fill up" any empty slots, up to the max connection specified using * {{#crossLink "LoadQueue.setMaxConnections"}}{{/crossLink}} method. The only exception is scripts that are loaded * using tags, which have to be loaded one at a time to maintain load order. * @method _loadNext * @private */ p._loadNext = function () { if (this._paused) { return; } // Only dispatch loadstart event when the first file is loaded. if (!this._loadStartWasDispatched) { this._sendLoadStart(); this._loadStartWasDispatched = true; } // The queue has completed. if (this._numItems == this._numItemsLoaded) { this.loaded = true; this._sendComplete(); // Load the next queue, if it has been defined. if (this.next && this.next.load) { this.next.load(); } } else { this.loaded = false; } // Must iterate forwards to load in the right order. for (var i = 0; i < this._loadQueue.length; i++) { if (this._currentLoads.length >= this._maxConnections) { break; } var loader = this._loadQueue[i]; // Determine if we should be only loading one tag-script at a time: // Note: maintainOrder items don't do anything here because we can hold onto their loaded value if (!this._canStartLoad(loader)) { continue; } this._loadQueue.splice(i, 1); i--; this._loadItem(loader); } }; /** * Begin loading an item. Event listeners are not added to the loaders until the load starts. * @method _loadItem * @param {AbstractLoader} loader The loader instance to start. Currently, this will be an XHRLoader or TagLoader. * @private */ p._loadItem = function (loader) { loader.on("fileload", this._handleFileLoad, this); loader.on("progress", this._handleProgress, this); loader.on("complete", this._handleFileComplete, this); loader.on("error", this._handleError, this); loader.on("fileerror", this._handleFileError, this); this._currentLoads.push(loader); this._sendFileStart(loader.getItem()); loader.load(); }; /** * The callback that is fired when a loader loads a file. This enables loaders like {{#crossLink "ManifestLoader"}}{{/crossLink}} * to maintain internal queues, but for this queue to dispatch the {{#crossLink "fileload:event"}}{{/crossLink}} * events. * @param {Event} The {{#crossLink "AbstractLoader/fileload:event"}}{{/crossLink}} event from the loader. * @private * @since 0.6.0 */ p._handleFileLoad = function(event) { event.target = null; this.dispatchEvent(event); }; /** * The callback that is fired when a loader encounters an error from an internal file load operation. This enables * loaders like M * @param event * @private */ p._handleFileError = function(event) { var newEvent = new createjs.ErrorEvent("FILE_LOAD_ERROR", null, event.item); this._sendError(newEvent); }; /** * The callback that is fired when a loader encounters an error. The queue will continue loading unless {{#crossLink "LoadQueue/stopOnError:property"}}{{/crossLink}} * is set to `true`. * @method _handleError * @param {ErrorEvent} event The error event, containing relevant error information. * @private */ p._handleError = function (event) { var loader = event.target; this._numItemsLoaded++; this._finishOrderedItem(loader, true); this._updateProgress(); var newEvent = new createjs.ErrorEvent("FILE_LOAD_ERROR", null, loader.getItem()); // TODO: Propagate actual error message. this._sendError(newEvent); if (!this.stopOnError) { this._removeLoadItem(loader); this._loadNext(); } }; /** * An item has finished loading. We can assume that it is totally loaded, has been parsed for immediate use, and * is available as the "result" property on the load item. The raw text result for a parsed item (such as JSON, XML, * CSS, JavaScript, etc) is available as the "rawResult" property, and can also be looked up using {{#crossLink "LoadQueue/getResult"}}{{/crossLink}}. * @method _handleFileComplete * @param {Event} event The event object from the loader. * @private */ p._handleFileComplete = function (event) { var loader = event.target; var item = loader.getItem(); var result = loader.getResult(); this._loadedResults[item.id] = result; var rawResult = loader.getResult(true); if (rawResult != null && rawResult !== result) { this._loadedRawResults[item.id] = rawResult; } this._saveLoadedItems(loader); // Clean up the load item this._removeLoadItem(loader); if (!this._finishOrderedItem(loader)) { // The item was NOT managed, so process it now this._processFinishedLoad(item, loader); } }; /** * Some loaders might load additional content, other than the item they were passed (such as {{#crossLink "ManifestLoader"}}{{/crossLink}}). * Any items exposed by the loader using {{#crossLink "AbstractLoader/getLoadItems"}}{{/crossLink}} are added to the * LoadQueue's look-ups, including {{#crossLink "getItem"}}{{/crossLink}} and {{#crossLink "getResult"}}{{/crossLink}} * methods. * @method _saveLoadedItems * @param {AbstractLoader} loader * @protected * @since 0.6.0 */ p._saveLoadedItems = function(loader) { // TODO: Not sure how to handle this. Would be nice to expose the items. // Loaders may load sub-items. This adds them to this queue var list = loader.getLoadedItems(); if (list === null) { return; } for (var i = 0; i < list.length; i++) { var item = list[i].item; // Store item lookups this._loadItemsBySrc[item.src] = item; this._loadItemsById[item.id] = item; // Store loaded content this._loadedResults[item.id] = list[i].result; this._loadedRawResults[item.id] = list[i].rawResult; } } /** * Flag an item as finished. If the item's order is being managed, then ensure that it is allowed to finish, and if * so, trigger prior items to trigger as well. * @method _finishOrderedItem * @param {AbstractLoader} loader * @return {Boolean} If the item's order is being managed. This allows the caller to take an alternate * behaviour if it is. * @private */ p._finishOrderedItem = function (loader, loadFailed) { var item = loader.getItem(); if ((this.maintainScriptOrder && item.type == createjs.LoadQueue.JAVASCRIPT) || item.maintainOrder) { //TODO: Evaluate removal of the _currentlyLoadingScript if (loader instanceof createjs.JavaScriptLoader) { this._currentlyLoadingScript = false; } var index = createjs.indexOf(this._scriptOrder, item); if (index == -1) { return false; } // This loader no longer exists this._loadedScripts[index] = (loadFailed === true) ? true : item; this._checkScriptLoadOrder(); return true; } return false; }; /** * Ensure the scripts load and dispatch in the correct order. When using XHR, scripts are stored in an array in the * order they were added, but with a "null" value. When they are completed, the value is set to the load item, * and then when they are processed and dispatched, the value is set to `true`. This method simply * iterates the array, and ensures that any loaded items that are not preceded by a `null` value are * dispatched. * @method _checkScriptLoadOrder * @private */ p._checkScriptLoadOrder = function () { var l = this._loadedScripts.length; for (var i = 0; i < l; i++) { var item = this._loadedScripts[i]; if (item === null) { break; } // This is still loading. Do not process further. if (item === true) { continue; } // This has completed, and been processed. Move on. var loadItem = this._loadedResults[item.id]; if (item.type == createjs.LoadQueue.JAVASCRIPT) { // Append script tags to the head automatically. Tags do this in the loader, but XHR scripts have to maintain order. (document.body || document.getElementsByTagName("body")[0]).appendChild(loadItem); } var loader = item._loader; this._processFinishedLoad(item, loader); this._loadedScripts[i] = true; } }; /** * A file has completed loading, and the LoadQueue can move on. This triggers the complete event, and kick-starts * the next item. * @method _processFinishedLoad * @param {LoadItem|Object} item * @param {AbstractLoader} loader * @protected */ p._processFinishedLoad = function (item, loader) { this._numItemsLoaded++; this._updateProgress(); this._sendFileComplete(item, loader); this._loadNext(); }; /** * Ensure items with `maintainOrder=true` that are before the specified item have loaded. This only applies to * JavaScript items that are being loaded with a TagLoader, since they have to be loaded and completed <strong>before</strong> * the script can even be started, since it exist in the DOM while loading. * @method _canStartLoad * @param {AbstractLoader} loader The loader for the item * @return {Boolean} Whether the item can start a load or not. * @private */ p._canStartLoad = function (loader) { if (!this.maintainScriptOrder || loader.preferXHR) { return true; } var item = loader.getItem(); if (item.type != createjs.LoadQueue.JAVASCRIPT) { return true; } if (this._currentlyLoadingScript) { return false; } var index = this._scriptOrder.indexOf(item); var i = 0; while (i < index) { var checkItem = this._loadedScripts[i]; if (checkItem == null) { return false; } i++; } this._currentlyLoadingScript = true; return true; }; /** * A load item is completed or was canceled, and needs to be removed from the LoadQueue. * @method _removeLoadItem * @param {AbstractLoader} loader A loader instance to remove. * @private */ p._removeLoadItem = function (loader) { var item = loader.getItem(); delete item._loader; var l = this._currentLoads.length; for (var i = 0; i < l; i++) { if (this._currentLoads[i] == loader) { this._currentLoads.splice(i, 1); break; } } }; /** * An item has dispatched progress. Propagate that progress, and update the LoadQueue's overall progress. * @method _handleProgress * @param {ProgressEvent} event The progress event from the item. * @private */ p._handleProgress = function (event) { var loader = event.target; this._sendFileProgress(loader.getItem(), loader.progress); this._updateProgress(); }; /** * Overall progress has changed, so determine the new progress amount and dispatch it. This changes any time an * item dispatches progress or completes. Note that since we don't always know the actual filesize of items before * they are loaded. In this case, we define a "slot" for each item (1 item in 10 would get 10%), and then append * loaded progress on top of the already-loaded items. * * For example, if 5/10 items have loaded, and item 6 is 20% loaded, the total progress would be: * <ul> * <li>5/10 of the items in the queue (50%)</li> * <li>plus 20% of item 6's slot (2%)</li> * <li>equals 52%</li> * </ul> * @method _updateProgress * @private */ p._updateProgress = function () { var loaded = this._numItemsLoaded / this._numItems; // Fully Loaded Progress var remaining = this._numItems - this._numItemsLoaded; if (remaining > 0) { var chunk = 0; for (var i = 0, l = this._currentLoads.length; i < l; i++) { chunk += this._currentLoads[i].progress; } loaded += (chunk / remaining) * (remaining / this._numItems); } if (this._lastProgress != loaded) { this._sendProgress(loaded); this._lastProgress = loaded; } }; /** * Clean out item results, to free them from memory. Mainly, the loaded item and results are cleared from internal * hashes. * @method _disposeItem * @param {LoadItem|Object} item The item that was passed in for preloading. * @private */ p._disposeItem = function (item) { delete this._loadedResults[item.id]; delete this._loadedRawResults[item.id]; delete this._loadItemsById[item.id]; delete this._loadItemsBySrc[item.src]; }; /** * Dispatch a "fileprogress" {{#crossLink "Event"}}{{/crossLink}}. Please see the LoadQueue {{#crossLink "LoadQueue/fileprogress:event"}}{{/crossLink}} * event for details on the event payload. * @method _sendFileProgress * @param {LoadItem|Object} item The item that is being loaded. * @param {Number} progress The amount the item has been loaded (between 0 and 1). * @protected */ p._sendFileProgress = function (item, progress) { if (this._isCanceled()) { this._cleanUp(); return; } if (!this.hasEventListener("fileprogress")) { return; } //LM: Rework ProgressEvent to support this? var event = new createjs.Event("fileprogress"); event.progress = progress; event.loaded = progress; event.total = 1; event.item = item; this.dispatchEvent(event); }; /** * Dispatch a fileload {{#crossLink "Event"}}{{/crossLink}}. Please see the {{#crossLink "LoadQueue/fileload:event"}}{{/crossLink}} event for * details on the event payload. * @method _sendFileComplete * @param {LoadItemObject} item The item that is being loaded. * @param {AbstractLoader} loader * @protected */ p._sendFileComplete = function (item, loader) { if (this._isCanceled()) { return; } var event = new createjs.Event("fileload"); event.loader = loader; event.item = item; event.result = this._loadedResults[item.id]; event.rawResult = this._loadedRawResults[item.id]; // This calls a handler specified on the actual load item. Currently, the SoundJS plugin uses this. if (item.completeHandler) { item.completeHandler(event); } this.hasEventListener("fileload") && this.dispatchEvent(event); }; /** * Dispatch a filestart {{#crossLink "Event"}}{{/crossLink}} immediately before a file starts to load. Please see * the {{#crossLink "LoadQueue/filestart:event"}}{{/crossLink}} event for details on the event payload. * @method _sendFileStart * @param {LoadItem|Object} item The item that is being loaded. * @protected */ p._sendFileStart = function (item) { var event = new createjs.Event("filestart"); event.item = item; this.hasEventListener("filestart") && this.dispatchEvent(event); }; p.toString = function () { return "[PreloadJS LoadQueue]"; }; createjs.LoadQueue = createjs.promote(LoadQueue, "AbstractLoader"); }()); //############################################################################## // TextLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for Text files. * @class TextLoader * @param {LoadItem|Object} loadItem * @constructor */ function TextLoader(loadItem) { this.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.TEXT); }; var p = createjs.extend(TextLoader, createjs.AbstractLoader); var s = TextLoader; // static methods /** * Determines if the loader can load a specific item. This loader loads items that are of type {{#crossLink "AbstractLoader/TEXT:property"}}{{/crossLink}}, * but is also the default loader if a file type can not be determined. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.TEXT; }; createjs.TextLoader = createjs.promote(TextLoader, "AbstractLoader"); }()); //############################################################################## // BinaryLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for binary files. This is useful for loading web audio, or content that requires an ArrayBuffer. * @class BinaryLoader * @param {LoadItem|Object} loadItem * @constructor */ function BinaryLoader(loadItem) { this.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.BINARY); this.on("initialize", this._updateXHR, this); }; var p = createjs.extend(BinaryLoader, createjs.AbstractLoader); var s = BinaryLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/BINARY:property"}}{{/crossLink}} * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.BINARY; }; // private methods /** * Before the item loads, set the response type to "arraybuffer" * @property _updateXHR * @param {Event} event * @private */ p._updateXHR = function (event) { event.loader.setResponseType("arraybuffer"); }; createjs.BinaryLoader = createjs.promote(BinaryLoader, "AbstractLoader"); }()); //############################################################################## // CSSLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for CSS files. * @class CSSLoader * @param {LoadItem|Object} loadItem * @param {Boolean} preferXHR * @constructor */ function CSSLoader(loadItem, preferXHR) { this.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.CSS); // public properties this.resultFormatter = this._formatResult; // protected properties this._tagSrcAttribute = "href"; if (preferXHR) { this._tag = document.createElement("style"); } else { this._tag = document.createElement("link"); } this._tag.rel = "stylesheet"; this._tag.type = "text/css"; }; var p = createjs.extend(CSSLoader, createjs.AbstractLoader); var s = CSSLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/CSS:property"}}{{/crossLink}}. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.CSS; }; // protected methods /** * The result formatter for CSS files. * @method _formatResult * @param {AbstractLoader} loader * @returns {HTMLLinkElement|HTMLStyleElement} * @private */ p._formatResult = function (loader) { if (this._preferXHR) { var tag = loader.getTag(); var head = document.getElementsByTagName("head")[0]; //Note: This is unavoidable in IE678 head.appendChild(tag); if (tag.styleSheet) { // IE tag.styleSheet.cssText = loader.getResult(true); } else { var textNode = document.createTextNode(loader.getResult(true)); tag.appendChild(textNode); } } else { tag = this._tag; } return tag; }; createjs.CSSLoader = createjs.promote(CSSLoader, "AbstractLoader"); }()); //############################################################################## // ImageLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for image files. * @class ImageLoader * @param {LoadItem|Object} loadItem * @param {Boolean} preferXHR * @constructor */ function ImageLoader (loadItem, preferXHR) { this.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.IMAGE); // public properties this.resultFormatter = this._formatResult; // protected properties this._tagSrcAttribute = "src"; // Check if the preload item is already a tag. if (createjs.RequestUtils.isImageTag(loadItem)) { this._tag = loadItem; } else if (createjs.RequestUtils.isImageTag(loadItem.src)) { this._tag = loadItem.src; } else if (createjs.RequestUtils.isImageTag(loadItem.tag)) { this._tag = loadItem.tag; } if (this._tag != null) { this._preferXHR = false; } else { this._tag = document.createElement("img"); } this.on("initialize", this._updateXHR, this); }; var p = createjs.extend(ImageLoader, createjs.AbstractLoader); var s = ImageLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/IMAGE:property"}}{{/crossLink}}. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.IMAGE; }; // public methods p.load = function () { if (this._tag.src != "" && this._tag.complete) { this._sendComplete(); return; } var crossOrigin = this._item.crossOrigin; if (crossOrigin == true) { crossOrigin = "Anonymous"; } if (crossOrigin != null && !createjs.RequestUtils.isLocal(this._item.src)) { this._tag.crossOrigin = crossOrigin; } this.AbstractLoader_load(); }; // protected methods /** * Before the item loads, set its mimetype and responseType. * @property _updateXHR * @param {Event} event * @private */ p._updateXHR = function (event) { event.loader.mimeType = 'text/plain; charset=x-user-defined-binary'; // Only exists for XHR if (event.loader.setResponseType) { event.loader.setResponseType("blob"); } }; /** * The result formatter for Image files. * @method _formatResult * @param {AbstractLoader} loader * @returns {HTMLImageElement} * @private */ p._formatResult = function (loader) { var _this = this; return function (done) { var tag = _this._tag; var URL = window.URL || window.webkitURL; if (!_this._preferXHR) { //document.body.removeChild(tag); } else if (URL) { var objURL = URL.createObjectURL(loader.getResult(true)); tag.src = objURL; tag.onload = function () { URL.revokeObjectURL(_this.src); } } else { tag.src = loader.getItem().src; } if (tag.complete) { done(tag); } else { tag.onload = function () { done(this); } } }; }; createjs.ImageLoader = createjs.promote(ImageLoader, "AbstractLoader"); }()); //############################################################################## // JavaScriptLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for JavaScript files. * @class JavaScriptLoader * @param {LoadItem|Object} loadItem * @param {Boolean} preferXHR * @constructor */ function JavaScriptLoader(loadItem, preferXHR) { this.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.JAVASCRIPT); // public properties this.resultFormatter = this._formatResult; // protected properties this._tagSrcAttribute = "src"; this.setTag(document.createElement("script")); }; var p = createjs.extend(JavaScriptLoader, createjs.AbstractLoader); var s = JavaScriptLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/JAVASCRIPT:property"}}{{/crossLink}} * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.JAVASCRIPT; }; // protected methods /** * The result formatter for JavaScript files. * @method _formatResult * @param {AbstractLoader} loader * @returns {HTMLLinkElement|HTMLStyleElement} * @private */ p._formatResult = function (loader) { var tag = loader.getTag(); if (this._preferXHR) { tag.text = loader.getResult(true); } return tag; } createjs.JavaScriptLoader = createjs.promote(JavaScriptLoader, "AbstractLoader"); }()); //############################################################################## // JSONLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for JSON files. To load JSON cross-domain, use JSONP and the {{#crossLink "JSONPLoader"}}{{/crossLink}} * instead. To load JSON-formatted manifests, use {{#crossLink "ManifestLoader"}}{{/crossLink}}, and to * load EaselJS SpriteSheets, use {{#crossLink "SpriteSheetLoader"}}{{/crossLink}}. * @class JSONLoader * @param {LoadItem|Object} loadItem * @constructor */ function JSONLoader(loadItem) { this.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.JSON); // public properties this.resultFormatter = this._formatResult; }; var p = createjs.extend(JSONLoader, createjs.AbstractLoader); var s = JSONLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/JSON:property"}}{{/crossLink}}. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.JSON && !item._loadAsJSONP; }; // protected methods /** * The result formatter for JSON files. * @method _formatResult * @param {AbstractLoader} loader * @returns {HTMLLinkElement|HTMLStyleElement} * @private */ p._formatResult = function (loader) { var json = null; try { json = createjs.DataUtils.parseJSON(loader.getResult(true)); } catch (e) { var event = new createjs.ErrorEvent("JSON_FORMAT", null, e); this._sendError(event); return e; } return json; }; createjs.JSONLoader = createjs.promote(JSONLoader, "AbstractLoader"); }()); //############################################################################## // JSONPLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for JSONP files, which are JSON-formatted text files, wrapped in a callback. To load regular JSON * without a callback use the {{#crossLink "JSONLoader"}}{{/crossLink}} instead. To load JSON-formatted manifests, * use {{#crossLink "ManifestLoader"}}{{/crossLink}}, and to load EaselJS SpriteSheets, use * {{#crossLink "SpriteSheetLoader"}}{{/crossLink}}. * * Note that JSONP files loaded concurrently require a <em>unique</em> callback. To ensure JSONP files are loaded * in order, either use the {{#crossLink "LoadQueue/setMaxConnections"}}{{/crossLink}} method (set to 1), * or set {{#crossLink "LoadItem/maintainOrder:property"}}{{/crossLink}} on items with the same callback. * @class JSONPLoader * @param {LoadItem|Object} loadItem * @constructor */ function JSONPLoader(loadItem) { this.AbstractLoader_constructor(loadItem, false, createjs.AbstractLoader.JSONP); this.setTag(document.createElement("script")); this.getTag().type = "text/javascript"; }; var p = createjs.extend(JSONPLoader, createjs.AbstractLoader); var s = JSONPLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/JSONP:property"}}{{/crossLink}}. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.JSONP || item._loadAsJSONP; }; // public methods p.cancel = function () { this.AbstractLoader_cancel(); this._dispose(); }; p.load = function () { if (this._item.callback == null) { throw new Error('callback is required for loading JSONP requests.'); } // TODO: Look into creating our own iFrame to handle the load // In the first attempt, FF did not get the result // result instanceof Object did not work either // so we would need to clone the result. if (window[this._item.callback] != null) { throw new Error( "JSONP callback '" + this._item.callback + "' already exists on window. You need to specify a different callback or re-name the current one."); } window[this._item.callback] = createjs.proxy(this._handleLoad, this); window.document.body.appendChild(this._tag); // Load the tag this._tag.src = this._item.src; }; // private methods /** * Handle the JSONP callback, which is a public method defined on `window`. * @method _handleLoad * @param {Object} The formatted JSON data. * @private */ p._handleLoad = function (data) { this._result = this._rawResult = data; this._sendComplete(); this._dispose(); }; /** * Clean up the JSONP load. This clears out the callback and script tag that this loader creates. * @method _dispose * @private */ p._dispose = function () { window.document.body.removeChild(this._tag); delete window[this._item.callback]; }; createjs.JSONPLoader = createjs.promote(JSONPLoader, "AbstractLoader"); }()); //############################################################################## // ManifestLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for JSON manifests. Items inside the manifest are loaded before the loader completes. To load manifests * using JSONP, specify a {{#crossLink "LoadItem/callback:property"}}{{/crossLink}} as part of the * {{#crossLink "LoadItem"}}{{/crossLink}}. Note that the {{#crossLink "JSONLoader"}}{{/crossLink}} and * {{#crossLink "JSONPLoader"}}{{/crossLink}} are higher priority loaders, so manifests <strong>must</strong> * set the {{#crossLink "LoadItem"}}{{/crossLink}} {{#crossLink "LoadItem/type:property"}}{{/crossLink}} property * to {{#crossLink "AbstractLoader/MANIFEST:property"}}{{/crossLink}}. * @class ManifestLoader * @param {LoadItem|Object} loadItem * @constructor */ function ManifestLoader(loadItem) { this.AbstractLoader_constructor(loadItem, null, createjs.AbstractLoader.MANIFEST); // protected properties /** * An internal {{#crossLink "LoadQueue"}}{{/crossLink}} that loads the contents of the manifest. * @property _manifestQueue * @type {LoadQueue} * @private */ this._manifestQueue = null; }; var p = createjs.extend(ManifestLoader, createjs.AbstractLoader); var s = ManifestLoader; // static properties /** * The amount of progress that the manifest itself takes up. * @property MANIFEST_PROGRESS * @type {number} * @default 0.25 (25%) * @private * @static */ s.MANIFEST_PROGRESS = 0.25; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/MANIFEST:property"}}{{/crossLink}} * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.MANIFEST; }; // public methods p.load = function () { this.AbstractLoader_load(); }; // protected methods p._createRequest = function() { var callback = this._item.callback if (callback != null) { this._request = new createjs.JSONPLoader(this._item); } else { this._request = new createjs.JSONLoader(this._item); } }; p.handleEvent = function (event) { switch (event.type) { case "complete": this._rawResult = event.target.getResult(true); this._result = event.target.getResult(); this._sendProgress(s.MANIFEST_PROGRESS); this._loadManifest(this._result); return; case "progress": event.loaded *= s.MANIFEST_PROGRESS; this.progress = event.loaded / event.total; if (isNaN(this.progress) || this.progress == Infinity) { this.progress = 0; } this._sendProgress(event); return; } this.AbstractLoader_handleEvent(event); }; p.destroy = function() { this.AbstractLoader_destroy(); this._manifestQueue.close(); }; /** * Create and load the manifest items once the actual manifest has been loaded. * @method _loadManifest * @param {Object} json * @private */ p._loadManifest = function (json) { if (json && json.manifest) { var queue = this._manifestQueue = new createjs.LoadQueue(); queue.on("fileload", this._handleManifestFileLoad, this); queue.on("progress", this._handleManifestProgress, this); queue.on("complete", this._handleManifestComplete, this, true); queue.on("error", this._handleManifestError, this, true); queue.loadManifest(json); } else { this._sendComplete(); } }; /** * An item from the {{#crossLink "_manifestQueue:property"}}{{/crossLink}} has completed. * @method _handleManifestFileLoad * @param {Event} event * @private */ p._handleManifestFileLoad = function (event) { event.target = null; this.dispatchEvent(event); }; /** * The manifest has completed loading. This triggers the {{#crossLink "AbstractLoader/complete:event"}}{{/crossLink}} * {{#crossLink "Event"}}{{/crossLink}} from the ManifestLoader. * @method _handleManifestComplete * @param {Event} event * @private */ p._handleManifestComplete = function (event) { this._loadedItems = this._manifestQueue.getItems(true); this._sendComplete(); }; /** * The manifest has reported progress. * @method _handleManifestProgress * @param {ProgressEvent} event * @private */ p._handleManifestProgress = function (event) { this.progress = event.progress * (1 - s.MANIFEST_PROGRESS) + s.MANIFEST_PROGRESS; this._sendProgress(this.progress); }; /** * The manifest has reported an error with one of the files. * @method _handleManifestError * @param {ErrorEvent} event * @private */ p._handleManifestError = function (event) { var newEvent = new createjs.Event("fileerror"); newEvent.item = event.data; this.dispatchEvent(newEvent); }; createjs.ManifestLoader = createjs.promote(ManifestLoader, "AbstractLoader"); }()); //############################################################################## // SoundLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for HTML audio files. PreloadJS can not load WebAudio files, as a WebAudio context is required, which * should be created by either a library playing the sound (such as <a href="http://soundjs.com">SoundJS</a>, or an * external framework that handles audio playback. To load content that can be played by WebAudio, use the * {{#crossLink "BinaryLoader"}}{{/crossLink}}, and handle the audio context decoding manually. * @class SoundLoader * @param {LoadItem|Object} loadItem * @param {Boolean} preferXHR * @constructor */ function SoundLoader(loadItem, preferXHR) { this.AbstractMediaLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.SOUND); // protected properties if (createjs.RequestUtils.isAudioTag(loadItem)) { this._tag = loadItem; } else if (createjs.RequestUtils.isAudioTag(loadItem.src)) { this._tag = loadItem; } else if (createjs.RequestUtils.isAudioTag(loadItem.tag)) { this._tag = createjs.RequestUtils.isAudioTag(loadItem) ? loadItem : loadItem.src; } if (this._tag != null) { this._preferXHR = false; } }; var p = createjs.extend(SoundLoader, createjs.AbstractMediaLoader); var s = SoundLoader; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/SOUND:property"}}{{/crossLink}}. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.SOUND; }; // protected methods p._createTag = function (src) { var tag = document.createElement("audio"); tag.autoplay = false; tag.preload = "none"; //LM: Firefox fails when this the preload="none" for other tags, but it needs to be "none" to ensure PreloadJS works. tag.src = src; return tag; }; createjs.SoundLoader = createjs.promote(SoundLoader, "AbstractMediaLoader"); }()); //############################################################################## // VideoLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for video files. * @class VideoLoader * @param {LoadItem|Object} loadItem * @param {Boolean} preferXHR * @constructor */ function VideoLoader(loadItem, preferXHR) { this.AbstractMediaLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.VIDEO); if (createjs.RequestUtils.isVideoTag(loadItem) || createjs.RequestUtils.isVideoTag(loadItem.src)) { this.setTag(createjs.RequestUtils.isVideoTag(loadItem)?loadItem:loadItem.src); // We can't use XHR for a tag that's passed in. this._preferXHR = false; } else { this.setTag(this._createTag()); } }; var p = createjs.extend(VideoLoader, createjs.AbstractMediaLoader); var s = VideoLoader; /** * Create a new video tag * * @returns {HTMLElement} * @private */ p._createTag = function () { return document.createElement("video"); }; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/VIDEO:property"}}{{/crossLink}}. * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.VIDEO; }; createjs.VideoLoader = createjs.promote(VideoLoader, "AbstractMediaLoader"); }()); //############################################################################## // SpriteSheetLoader.js //############################################################################## this.createjs = this.createjs || {}; (function () { "use strict"; // constructor /** * A loader for EaselJS SpriteSheets. Images inside the spritesheet definition are loaded before the loader * completes. To load SpriteSheets using JSONP, specify a {{#crossLink "LoadItem/callback:property"}}{{/crossLink}} * as part of the {{#crossLink "LoadItem"}}{{/crossLink}}. Note that the {{#crossLink "JSONLoader"}}{{/crossLink}} * and {{#crossLink "JSONPLoader"}}{{/crossLink}} are higher priority loaders, so SpriteSheets <strong>must</strong> * set the {{#crossLink "LoadItem"}}{{/crossLink}} {{#crossLink "LoadItem/type:property"}}{{/crossLink}} property * to {{#crossLink "AbstractLoader/SPRITESHEET:property"}}{{/crossLink}}. * @class SpriteSheetLoader * @param {LoadItem|Object} loadItem * @constructor */ function SpriteSheetLoader(loadItem) { this.AbstractLoader_constructor(loadItem, null, createjs.AbstractLoader.SPRITESHEET); // protected properties /** * An internal queue which loads the SpriteSheet's images. * @method _manifestQueue * @type {LoadQueue} * @private */ this._manifestQueue = null; } var p = createjs.extend(SpriteSheetLoader, createjs.AbstractLoader); var s = SpriteSheetLoader; // static properties /** * The amount of progress that the manifest itself takes up. * @property SPRITESHEET_PROGRESS * @type {number} * @default 0.25 (25%) * @private * @static */ s.SPRITESHEET_PROGRESS = 0.25; // static methods /** * Determines if the loader can load a specific item. This loader can only load items that are of type * {{#crossLink "AbstractLoader/SPRITESHEET:property"}}{{/crossLink}} * @method canLoadItem * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load. * @returns {Boolean} Whether the loader can load the item. * @static */ s.canLoadItem = function (item) { return item.type == createjs.AbstractLoader.SPRITESHEET; }; // public methods p.destroy = function() { this.AbstractLoader_destroy; this._manifestQueue.close(); }; // protected methods p._createRequest = function() { var callback = this._item.callback if (callback != null && callback instanceof Function) { this._request = new createjs.JSONPLoader(this._item); } else { this._request = new createjs.JSONLoader(this._item); } }; p.handleEvent = function (event) { switch (event.type) { case "complete": this._rawResult = event.target.getResult(true); this._result = event.target.getResult(); this._sendProgress(s.SPRITESHEET_PROGRESS); this._loadManifest(this._result); return; case "progress": event.loaded *= s.SPRITESHEET_PROGRESS; this.progress = event.loaded / event.total; if (isNaN(this.progress) || this.progress == Infinity) { this.progress = 0; } this._sendProgress(event); return; } this.AbstractLoader_handleEvent(event); }; /** * Create and load the images once the SpriteSheet JSON has been loaded. * @method _loadManifest * @param {Object} json * @private */ p._loadManifest = function (json) { if (json && json.images) { var queue = this._manifestQueue = new createjs.LoadQueue(); queue.on("complete", this._handleManifestComplete, this, true); queue.on("fileload", this._handleManifestFileLoad, this); queue.on("progress", this._handleManifestProgress, this); queue.on("error", this._handleManifestError, this, true); queue.loadManifest(json.images); } }; /** * An item from the {{#crossLink "_manifestQueue:property"}}{{/crossLink}} has completed. * @method _handleManifestFileLoad * @param {Event} event * @private */ p._handleManifestFileLoad = function (event) { var image = event.result; if (image != null) { var images = this.getResult().images; var pos = images.indexOf(event.item.src); images[pos] = image; } }; /** * The images have completed loading. 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a?a.style?parseFloat(f.css(a,d,"padding")):this[d]():null},f.fn["outer"+c]=function(a){var b=this[0];return b?b.style?parseFloat(f.css(b,d,a?"margin":"border")):this[d]():null},f.fn[d]=function(a){var e=this[0];if(!e)return a==null?null:this;if(f.isFunction(a))return this.each(function(b){var c=f(this);c[d](a.call(this,b,c[d]()))});if(f.isWindow(e)){var g=e.document.documentElement["client"+c],h=e.document.body;return e.document.compatMode==="CSS1Compat"&&g||h&&h["client"+c]||g}if(e.nodeType===9)return Math.max(e.documentElement["client"+c],e.body["scroll"+c],e.documentElement["scroll"+c],e.body["offset"+c],e.documentElement["offset"+c]);if(a===b){var i=f.css(e,d),j=parseFloat(i);return f.isNumeric(j)?j:i}return this.css(d,typeof a=="string"?a:a+"px")}}),a.jQuery=a.$=f,typeof define=="function"&&define.amd&&define.amd.jQuery&&define("jquery",[],function(){return f})})(window); </script> <script type="text/javascript" id="editable"> var map = {}; var preload; var loader; var manifest; var w = 226; // Item width var h = 170; // Item height function init() { $("#loadAnotherBtn").click(loadAnother); $("#loadAllBtn").click(loadAll); $("#reloadBtn").click(reload); reload(); } // Reset everything function reload() { // If there is an open preload queue, close it. if (preload != null) { preload.close(); } // Reset the UI $("#reloadBtn").css("display", "none"); $(".box").remove(); $("#mainProgress .progress").width(0); $("#loadAnotherBtn").attr("disabled", null); $("#loadAllBtn").attr("disabled", null); // Push each item into our manifest manifest = [ "/imgs/mp4gifs/jtfdc_20200504__0950_stalkaround_police_sqrbak_jkwiigoin_terror.jpg", "/imgs/mp4gifs/jtfdc_20200424_1833_stalkaroundup_longflatbed_truck.jpg", "/imgs/mp4gifs/jtfdc_20200424_1850_stalkaroundup_speedy_bigtruckvan.jpg", "/imgs/mp4gif/jtfdc_20200501_2012_stalkaround_jtf31_bigups_crunch.jpg", "/imgs/mp4gifs/jtfdc_20200501_0051_stalkaroundup_owl_rumblepickup.jpg", "/imgs/mp4gifs/jtfdc_20200423_1423_stalkaroundup_speeding_amazon_stalk.jpg", "/fb/konet/pages/1.jpg", "/fb/jtfdc/pages/1.jpg", "/fb/jtfdc/pages/2.jpg", "/fb/jtfdc/pages/3.jpg", "/fb/jtfdc/pages/4.jpg", "/fb/jtfdc/pages/4.jpg", "/fb/jtfdc/pages/5.jpg", "/fb/jtfdc/pages/6.jpg", "/fb/jtfdc/pages/8.jpg", "/fb/iperms/pages/1.jpg", "/fb/konet/pages/1.jpg" ]; // "/imgs/mp4gifs/jtfdc_20200503_0810_stalkaroundacross_dogs2.jpg", // "/imgs/mp4gifs/jtfdc_20200503_1656_stalkaoundacross_shiygrey_cpl.jpg", // "/imgs/mp4gifs/jtfdc_20200503_1815_jtf30_doogys_allin.jpg", // "/imgs/mp4gifs/jtfdc_20200503_1816_stalkaround_drksqrbak.jpg", // "/imgs/mp4gifs/jtfdc_20200503_1825_stalkaroudup_shyredcpl.jpg", // "/imgs/mp4gifs/jtfdc_20200503_1825_stalkaroundup_shinysilverguy.jpg", // "/imgs/mp4gifs/jtfdc_20200503_1905_stalkaroudacross_ltlsilvrguy.jpg", // "/imgs/mp4gifs/jtfdc_20200503_2011_stalaround_acrosss_ltlwhtcarguy.jpg", // "/imgs/mp4gifs/jtfdc_20200502_1124_stalkaroundsup_fedex_gigglegirls.jpg", // "/imgs/mp4gif/jtfdc_20200501_2012_stalkaround_jtf31_bigups_crunch.jpg", // "/imgs/mp4gifs/jtfdc_20200501_0051_stalkaroundup_owl_rumblepickup.jpg", // "/imgs/mp4gifs/jtfdc_20200423_1423_stalkaroundup_speeding_amazon_stalk.jpg", // "/imgs/mp4gifs/jtfdc_20200424_1833_stalkaroundup_longflatbed_truck.jpg", // "/imgs/mp4gifs/jtfdc_20200424_1850_stalkaroundup_speedy_bigtruckvan.jpg", // /imgs/mp4gifs/jtfdc_20200411_1538_ks.jpg" // Create a preloader. There is no manifest added to it up-front, we will add items on-demand. preload = new createjs.LoadQueue(true, "../_assets/art/"); // Use this instead to use tag loading //preload = new createjs.LoadQueue(false); preload.on("fileload", handleFileLoad); preload.on("progress", handleOverallProgress); preload.on("fileprogress", handleFileProgress); preload.on("error", handleFileError); preload.setMaxConnections(5); } function stop() { if (preload != null) { preload.close(); } } function loadAll() { while (manifest.length > 0) { loadAnother(); } } function loadAnother() { // Get the next manifest item, and load it var item = manifest.shift(); preload.loadFile(item); // If we have no more items, disable the UI. if (manifest.length == 0) { $("#loadAnotherBtn").attr("disabled", "disabled"); $("#loadAllBtn").attr("disabled", "disabled"); $("#reloadBtn").css("display", "inline"); } // Create a new loader display item var div = $("#template").clone(); div.attr("id", ""); // Wipe out the ID div.addClass("box") $("#container").append(div); map[item] = div; // Store a reference to each item by its src } // File complete handler function handleFileLoad(event) { var div = map[event.item.id]; div.addClass("complete"); // Get a reference to the loaded image (<img/>) var img = event.result; // Resize it to fit inside the item var r = img.width / img.height; var ir = w / h if (r > ir) { img.width = w; img.height = w / r; } else { img.height = h; img.width = h; } div.append(img); // Add it to the DOM } // File progress handler function handleFileProgress(event) { var div = map[event.item.id]; // Lookup the related item div.children("DIV").width(event.progress * div.width()); // Set the width the progress. } // Overall progress handler function handleOverallProgress(event) { $("#mainProgress > .progress").width(preload.progress * $("#mainProgress").width()); } // An error happened on a file function handleFileError(event) { var div = map[event.item.id]; div.addClass("error"); } </script> </body> </html>

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Navigation

Left/Right Mouse drag: Changes camera heading.
Up/Sown Mouse drag: Changes camera pitch.
Scroll wheel: Changes camera field of view.
I-Key: Displays Info panel with canvas size, image size and FPS.

17.Aug.2010, Martin Wengenmayer

koh5_pano

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