/* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ /** The YUI module contains the components required for building the YUI seed file. This includes the script loading mechanism, a simple queue, and the core utilities for the library. @module yui @main yui @submodule yui-base **/ /*jshint eqeqeq: false*/ if (typeof YUI != 'undefined') { YUI._YUI = YUI; } /** The YUI global namespace object. This is the constructor for all YUI instances. This is a self-instantiable factory function, meaning you don't need to precede it with the `new` operator. You can invoke it directly like this: YUI().use('*', function (Y) { // Y is a new YUI instance. }); But it also works like this: var Y = YUI(); The `YUI` constructor accepts an optional config object, like this: YUI({ debug: true, combine: false }).use('node', function (Y) { // Y.Node is ready to use. }); See the API docs for the Config class for the complete list of supported configuration properties accepted by the YUI constuctor. If a global `YUI` object is already defined, the existing YUI object will not be overwritten, to ensure that defined namespaces are preserved. Each YUI instance has full custom event support, but only if the event system is available. @class YUI @uses EventTarget @constructor @global @param {Object} [config]* Zero or more optional configuration objects. Config values are stored in the `Y.config` property. See the Config docs for the list of supported properties. **/ /*global YUI*/ /*global YUI_config*/ var YUI = function() { var i = 0, Y = this, args = arguments, l = args.length, instanceOf = function(o, type) { return (o && o.hasOwnProperty && (o instanceof type)); }, gconf = (typeof YUI_config !== 'undefined') && YUI_config; if (!(instanceOf(Y, YUI))) { Y = new YUI(); } else { // set up the core environment Y._init(); /** Master configuration that might span multiple contexts in a non- browser environment. It is applied first to all instances in all contexts. @example YUI.GlobalConfig = { filter: 'debug' }; YUI().use('node', function (Y) { // debug files used here }); YUI({ filter: 'min' }).use('node', function (Y) { // min files used here }); @property {Object} GlobalConfig @global @static **/ if (YUI.GlobalConfig) { Y.applyConfig(YUI.GlobalConfig); } /** Page-level config applied to all YUI instances created on the current page. This is applied after `YUI.GlobalConfig` and before any instance-level configuration. @example // Single global var to include before YUI seed file YUI_config = { filter: 'debug' }; YUI().use('node', function (Y) { // debug files used here }); YUI({ filter: 'min' }).use('node', function (Y) { // min files used here }); @property {Object} YUI_config @global **/ if (gconf) { Y.applyConfig(gconf); } // bind the specified additional modules for this instance if (!l) { Y._setup(); } } if (l) { // Each instance can accept one or more configuration objects. // These are applied after YUI.GlobalConfig and YUI_Config, // overriding values set in those config files if there is a // matching property. for (; i < l; i++) { Y.applyConfig(args[i]); } Y._setup(); } Y.instanceOf = instanceOf; return Y; }; (function() { var proto, prop, VERSION = '3.12.0', PERIOD = '.', BASE = 'http://yui.yahooapis.com/', /* These CSS class names can't be generated by getClassName since it is not available at the time they are being used. */ DOC_LABEL = 'yui3-js-enabled', CSS_STAMP_EL = 'yui3-css-stamp', NOOP = function() {}, SLICE = Array.prototype.slice, APPLY_TO_AUTH = { 'io.xdrReady': 1, // the functions applyTo 'io.xdrResponse': 1, // can call. this should 'SWF.eventHandler': 1 }, // be done at build time hasWin = (typeof window != 'undefined'), win = (hasWin) ? window : null, doc = (hasWin) ? win.document : null, docEl = doc && doc.documentElement, docClass = docEl && docEl.className, instances = {}, time = new Date().getTime(), add = function(el, type, fn, capture) { if (el && el.addEventListener) { el.addEventListener(type, fn, capture); } else if (el && el.attachEvent) { el.attachEvent('on' + type, fn); } }, remove = function(el, type, fn, capture) { if (el && el.removeEventListener) { // this can throw an uncaught exception in FF try { el.removeEventListener(type, fn, capture); } catch (ex) {} } else if (el && el.detachEvent) { el.detachEvent('on' + type, fn); } }, handleLoad = function() { YUI.Env.windowLoaded = true; YUI.Env.DOMReady = true; if (hasWin) { remove(window, 'load', handleLoad); } }, getLoader = function(Y, o) { var loader = Y.Env._loader, lCore = [ 'loader-base' ], G_ENV = YUI.Env, mods = G_ENV.mods; if (loader) { //loader._config(Y.config); loader.ignoreRegistered = false; loader.onEnd = null; loader.data = null; loader.required = []; loader.loadType = null; } else { loader = new Y.Loader(Y.config); Y.Env._loader = loader; } if (mods && mods.loader) { lCore = [].concat(lCore, YUI.Env.loaderExtras); } YUI.Env.core = Y.Array.dedupe([].concat(YUI.Env.core, lCore)); return loader; }, clobber = function(r, s) { for (var i in s) { if (s.hasOwnProperty(i)) { r[i] = s[i]; } } }, ALREADY_DONE = { success: true }; // Stamp the documentElement (HTML) with a class of "yui-loaded" to // enable styles that need to key off of JS being enabled. if (docEl && docClass.indexOf(DOC_LABEL) == -1) { if (docClass) { docClass += ' '; } docClass += DOC_LABEL; docEl.className = docClass; } if (VERSION.indexOf('@') > -1) { VERSION = '3.5.0'; // dev time hack for cdn test } proto = { /** Applies a new configuration object to the config of this YUI instance. This will merge new group/module definitions, and will also update the loader cache if necessary. Updating `Y.config` directly will not update the cache. @method applyConfig @param {Object} o the configuration object. @since 3.2.0 **/ applyConfig: function(o) { o = o || NOOP; var attr, name, // detail, config = this.config, mods = config.modules, groups = config.groups, aliases = config.aliases, loader = this.Env._loader; for (name in o) { if (o.hasOwnProperty(name)) { attr = o[name]; if (mods && name == 'modules') { clobber(mods, attr); } else if (aliases && name == 'aliases') { clobber(aliases, attr); } else if (groups && name == 'groups') { clobber(groups, attr); } else if (name == 'win') { config[name] = (attr && attr.contentWindow) || attr; config.doc = config[name] ? config[name].document : null; } else if (name == '_yuid') { // preserve the guid } else { config[name] = attr; } } } if (loader) { loader._config(o); } }, /** Old way to apply a config to this instance (calls `applyConfig` under the hood). @private @method _config @param {Object} o The config to apply **/ _config: function(o) { this.applyConfig(o); }, /** Initializes this YUI instance. @private @method _init **/ _init: function() { var filter, el, Y = this, G_ENV = YUI.Env, Env = Y.Env, prop; /** The version number of this YUI instance. This value is typically updated by a script when a YUI release is built, so it may not reflect the correct version number when YUI is run from the development source tree. @property {String} version **/ Y.version = VERSION; if (!Env) { Y.Env = { core: ['get', 'features', 'intl-base', 'yui-log', 'yui-later', 'loader-base', 'loader-rollup', 'loader-yui3'], loaderExtras: ['loader-rollup', 'loader-yui3'], mods: {}, // flat module map versions: {}, // version module map base: BASE, cdn: BASE + VERSION + '/build/', // bootstrapped: false, _idx: 0, _used: {}, _attached: {}, _missed: [], _yidx: 0, _uidx: 0, _guidp: 'y', _loaded: {}, // serviced: {}, // Regex in English: // I'll start at the \b(simpleyui). // 1. Look in the test string for "simpleyui" or "yui" or // "yui-base" or "yui-davglass" or "yui-foobar" that comes after a word break. That is, it // can't match "foyui" or "i_heart_simpleyui". This can be anywhere in the string. // 2. After #1 must come a forward slash followed by the string matched in #1, so // "yui-base/yui-base" or "simpleyui/simpleyui" or "yui-pants/yui-pants". // 3. The second occurence of the #1 token can optionally be followed by "-debug" or "-min", // so "yui/yui-min", "yui/yui-debug", "yui-base/yui-base-debug". NOT "yui/yui-tshirt". // 4. This is followed by ".js", so "yui/yui.js", "simpleyui/simpleyui-min.js" // 0. Going back to the beginning, now. If all that stuff in 1-4 comes after a "?" in the string, // then capture the junk between the LAST "&" and the string in 1-4. So // "blah?foo/yui/yui.js" will capture "foo/" and "blah?some/thing.js&3.3.0/build/yui-davglass/yui-davglass.js" // will capture "3.3.0/build/" // // Regex Exploded: // (?:\? Find a ? // (?:[^&]*&) followed by 0..n characters followed by an & // * in fact, find as many sets of characters followed by a & as you can // ([^&]*) capture the stuff after the last & in \1 // )? but it's ok if all this ?junk&more_junk stuff isn't even there // \b(simpleyui| after a word break find either the string "simpleyui" or // yui(?:-\w+)? the string "yui" optionally followed by a -, then more characters // ) and store the simpleyui or yui-* string in \2 // \/\2 then comes a / followed by the simpleyui or yui-* string in \2 // (?:-(min|debug))? optionally followed by "-min" or "-debug" // .js and ending in ".js" _BASE_RE: /(?:\?(?:[^&]*&)*([^&]*))?\b(simpleyui|yui(?:-\w+)?)\/\2(?:-(min|debug))?\.js/, parseBasePath: function(src, pattern) { var match = src.match(pattern), path, filter; if (match) { path = RegExp.leftContext || src.slice(0, src.indexOf(match[0])); // this is to set up the path to the loader. The file // filter for loader should match the yui include. filter = match[3]; // extract correct path for mixed combo urls // http://yuilibrary.com/projects/yui3/ticket/2528423 if (match[1]) { path += '?' + match[1]; } path = { filter: filter, path: path }; } return path; }, getBase: G_ENV && G_ENV.getBase || function(pattern) { var nodes = (doc && doc.getElementsByTagName('script')) || [], path = Env.cdn, parsed, i, len, src; for (i = 0, len = nodes.length; i < len; ++i) { src = nodes[i].src; if (src) { parsed = Y.Env.parseBasePath(src, pattern); if (parsed) { filter = parsed.filter; path = parsed.path; break; } } } // use CDN default return path; } }; Env = Y.Env; Env._loaded[VERSION] = {}; if (G_ENV && Y !== YUI) { Env._yidx = ++G_ENV._yidx; Env._guidp = ('yui_' + VERSION + '_' + Env._yidx + '_' + time).replace(/[^a-z0-9_]+/g, '_'); } else if (YUI._YUI) { G_ENV = YUI._YUI.Env; Env._yidx += G_ENV._yidx; Env._uidx += G_ENV._uidx; for (prop in G_ENV) { if (!(prop in Env)) { Env[prop] = G_ENV[prop]; } } delete YUI._YUI; } Y.id = Y.stamp(Y); instances[Y.id] = Y; } Y.constructor = YUI; // configuration defaults Y.config = Y.config || { bootstrap: true, cacheUse: true, debug: true, doc: doc, fetchCSS: true, throwFail: true, useBrowserConsole: true, useNativeES5: true, win: win, global: Function('return this')() }; //Register the CSS stamp element if (doc && !doc.getElementById(CSS_STAMP_EL)) { el = doc.createElement('div'); el.innerHTML = '
'; YUI.Env.cssStampEl = el.firstChild; if (doc.body) { doc.body.appendChild(YUI.Env.cssStampEl); } else { docEl.insertBefore(YUI.Env.cssStampEl, docEl.firstChild); } } else if (doc && doc.getElementById(CSS_STAMP_EL) && !YUI.Env.cssStampEl) { YUI.Env.cssStampEl = doc.getElementById(CSS_STAMP_EL); } Y.config.lang = Y.config.lang || 'en-US'; Y.config.base = YUI.config.base || Y.Env.getBase(Y.Env._BASE_RE); if (!filter || (!('mindebug').indexOf(filter))) { filter = 'min'; } filter = (filter) ? '-' + filter : filter; Y.config.loaderPath = YUI.config.loaderPath || 'loader/loader' + filter + '.js'; }, /** Finishes the instance setup. Attaches whatever YUI modules were defined at the time that this instance was created. @method _setup @private **/ _setup: function() { var i, Y = this, core = [], mods = YUI.Env.mods, extras = Y.config.core || [].concat(YUI.Env.core); //Clone it.. for (i = 0; i < extras.length; i++) { if (mods[extras[i]]) { core.push(extras[i]); } } Y._attach(['yui-base']); Y._attach(core); if (Y.Loader) { getLoader(Y); } }, /** Executes the named method on the specified YUI instance if that method is whitelisted. @method applyTo @param {String} id YUI instance id. @param {String} method Name of the method to execute. For example: 'Object.keys'. @param {Array} args Arguments to apply to the method. @return {Mixed} Return value from the applied method, or `null` if the specified instance was not found or the method was not whitelisted. **/ applyTo: function(id, method, args) { if (!(method in APPLY_TO_AUTH)) { this.log(method + ': applyTo not allowed', 'warn', 'yui'); return null; } var instance = instances[id], nest, m, i; if (instance) { nest = method.split('.'); m = instance; for (i = 0; i < nest.length; i = i + 1) { m = m[nest[i]]; if (!m) { this.log('applyTo not found: ' + method, 'warn', 'yui'); } } return m && m.apply(instance, args); } return null; }, /** Registers a YUI module and makes it available for use in a `YUI().use()` call or as a dependency for other modules. The easiest way to create a first-class YUI module is to use Shifter, the YUI component build tool. Shifter will automatically wrap your module code in a `YUI.add()` call along with any configuration info required for the module. @example YUI.add('davglass', function (Y) { Y.davglass = function () { }; }, '3.4.0', { requires: ['harley-davidson', 'mt-dew'] }); @method add @param {String} name Module name. @param {Function} fn Function containing module code. This function will be executed whenever the module is attached to a specific YUI instance. @param {YUI} fn.Y The YUI instance to which this module is attached. @param {String} fn.name Name of the module @param {String} version Module version number. This is currently used only for informational purposes, and is not used internally by YUI. @param {Object} [config] Module config. @param {Array} [config.requires] Array of other module names that must be attached before this module can be attached. @param {Array} [config.optional] Array of optional module names that should be attached before this module is attached if they've already been loaded. If the `loadOptional` YUI option is `true`, optional modules that have not yet been loaded will be loaded just as if they were hard requirements. @param {Array} [config.use] Array of module names that are included within or otherwise provided by this module, and which should be attached automatically when this module is attached. This makes it possible to create "virtual rollup" modules that simply attach a collection of other modules or submodules. @return {YUI} This YUI instance. **/ add: function(name, fn, version, details) { details = details || {}; var env = YUI.Env, mod = { name: name, fn: fn, version: version, details: details }, //Instance hash so we don't apply it to the same instance twice applied = {}, loader, inst, i, versions = env.versions; env.mods[name] = mod; versions[version] = versions[version] || {}; versions[version][name] = mod; for (i in instances) { if (instances.hasOwnProperty(i)) { inst = instances[i]; if (!applied[inst.id]) { applied[inst.id] = true; loader = inst.Env._loader; if (loader) { if (!loader.moduleInfo[name] || loader.moduleInfo[name].temp) { loader.addModule(details, name); } } } } } return this; }, /** Executes the callback function associated with each required module, attaching the module to this YUI instance. @method _attach @param {Array} r The array of modules to attach @param {Boolean} [moot=false] If `true`, don't throw a warning if the module is not attached. @private **/ _attach: function(r, moot) { var i, name, mod, details, req, use, after, mods = YUI.Env.mods, aliases = YUI.Env.aliases, Y = this, j, cache = YUI.Env._renderedMods, loader = Y.Env._loader, done = Y.Env._attached, len = r.length, loader, def, go, c = []; //Check for conditional modules (in a second+ instance) and add their requirements //TODO I hate this entire method, it needs to be fixed ASAP (3.5.0) ^davglass for (i = 0; i < len; i++) { name = r[i]; mod = mods[name]; c.push(name); if (loader && loader.conditions[name]) { for (j in loader.conditions[name]) { if (loader.conditions[name].hasOwnProperty(j)) { def = loader.conditions[name][j]; go = def && ((def.ua && Y.UA[def.ua]) || (def.test && def.test(Y))); if (go) { c.push(def.name); } } } } } r = c; len = r.length; for (i = 0; i < len; i++) { if (!done[r[i]]) { name = r[i]; mod = mods[name]; if (aliases && aliases[name] && !mod) { Y._attach(aliases[name]); continue; } if (!mod) { if (loader && loader.moduleInfo[name]) { mod = loader.moduleInfo[name]; moot = true; } //if (!loader || !loader.moduleInfo[name]) { //if ((!loader || !loader.moduleInfo[name]) && !moot) { if (!moot && name) { if ((name.indexOf('skin-') === -1) && (name.indexOf('css') === -1)) { Y.Env._missed.push(name); Y.Env._missed = Y.Array.dedupe(Y.Env._missed); Y.message('NOT loaded: ' + name, 'warn', 'yui'); } } } else { done[name] = true; //Don't like this, but in case a mod was asked for once, then we fetch it //We need to remove it from the missed list ^davglass for (j = 0; j < Y.Env._missed.length; j++) { if (Y.Env._missed[j] === name) { Y.message('Found: ' + name + ' (was reported as missing earlier)', 'warn', 'yui'); Y.Env._missed.splice(j, 1); } } /* If it's a temp module, we need to redo it's requirements if it's already loaded since it may have been loaded by another instance and it's dependencies might have been redefined inside the fetched file. */ if (loader && cache && cache[name] && cache[name].temp) { loader.getRequires(cache[name]); req = []; for (j in loader.moduleInfo[name].expanded_map) { if (loader.moduleInfo[name].expanded_map.hasOwnProperty(j)) { req.push(j); } } Y._attach(req); } details = mod.details; req = details.requires; use = details.use; after = details.after; //Force Intl load if there is a language (Loader logic) @todo fix this shit if (details.lang) { req = req || []; req.unshift('intl'); } if (req) { for (j = 0; j < req.length; j++) { if (!done[req[j]]) { if (!Y._attach(req)) { return false; } break; } } } if (after) { for (j = 0; j < after.length; j++) { if (!done[after[j]]) { if (!Y._attach(after, true)) { return false; } break; } } } if (mod.fn) { if (Y.config.throwFail) { mod.fn(Y, name); } else { try { mod.fn(Y, name); } catch (e) { Y.error('Attach error: ' + name, e, name); return false; } } } if (use) { for (j = 0; j < use.length; j++) { if (!done[use[j]]) { if (!Y._attach(use)) { return false; } break; } } } } } } return true; }, /** Delays the `use` callback until another event has taken place such as `window.onload`, `domready`, `contentready`, or `available`. @private @method _delayCallback @param {Function} cb The original `use` callback. @param {String|Object} until Either an event name ('load', 'domready', etc.) or an object containing event/args keys for contentready/available. @return {Function} **/ _delayCallback: function(cb, until) { var Y = this, mod = ['event-base']; until = (Y.Lang.isObject(until) ? until : { event: until }); if (until.event === 'load') { mod.push('event-synthetic'); } return function() { var args = arguments; Y._use(mod, function() { Y.on(until.event, function() { args[1].delayUntil = until.event; cb.apply(Y, args); }, until.args); }); }; }, /** Attaches one or more modules to this YUI instance. When this is executed, the requirements of the desired modules are analyzed, and one of several things can happen: * All required modules have already been loaded, and just need to be attached to this YUI instance. In this case, the `use()` callback will be executed synchronously after the modules are attached. * One or more modules have not yet been loaded, or the Get utility is not available, or the `bootstrap` config option is `false`. In this case, a warning is issued indicating that modules are missing, but all available modules will still be attached and the `use()` callback will be executed synchronously. * One or more modules are missing and the Loader is not available but the Get utility is, and `bootstrap` is not `false`. In this case, the Get utility will be used to load the Loader, and we will then proceed to the following state: * One or more modules are missing and the Loader is available. In this case, the Loader will be used to resolve the dependency tree for the missing modules and load them and their dependencies. When the Loader is finished loading modules, the `use()` callback will be executed asynchronously. @example // Loads and attaches dd and its dependencies. YUI().use('dd', function (Y) { // ... }); // Loads and attaches dd and node as well as all of their dependencies. YUI().use(['dd', 'node'], function (Y) { // ... }); // Attaches all modules that have already been loaded. YUI().use('*', function (Y) { // ... }); // Attaches a gallery module. YUI().use('gallery-yql', function (Y) { // ... }); // Attaches a YUI 2in3 module. YUI().use('yui2-datatable', function (Y) { // ... }); @method use @param {String|Array} modules* One or more module names to attach. @param {Function} [callback] Callback function to be executed once all specified modules and their dependencies have been attached. @param {YUI} callback.Y The YUI instance created for this sandbox. @param {Object} callback.status Object containing `success`, `msg` and `data` properties. @chainable **/ use: function() { var args = SLICE.call(arguments, 0), callback = args[args.length - 1], Y = this, i = 0, name, Env = Y.Env, provisioned = true; // The last argument supplied to use can be a load complete callback if (Y.Lang.isFunction(callback)) { args.pop(); if (Y.config.delayUntil) { callback = Y._delayCallback(callback, Y.config.delayUntil); } } else { callback = null; } if (Y.Lang.isArray(args[0])) { args = args[0]; } if (Y.config.cacheUse) { while ((name = args[i++])) { if (!Env._attached[name]) { provisioned = false; break; } } if (provisioned) { if (args.length) { } Y._notify(callback, ALREADY_DONE, args); return Y; } } if (Y._loading) { Y._useQueue = Y._useQueue || new Y.Queue(); Y._useQueue.add([args, callback]); } else { Y._use(args, function(Y, response) { Y._notify(callback, response, args); }); } return Y; }, /** Handles Loader notifications about attachment/load errors. @method _notify @param {Function} callback Callback to pass to `Y.config.loadErrorFn`. @param {Object} response Response returned from Loader. @param {Array} args Arguments passed from Loader. @private **/ _notify: function(callback, response, args) { if (!response.success && this.config.loadErrorFn) { this.config.loadErrorFn.call(this, this, callback, response, args); } else if (callback) { if (this.Env._missed && this.Env._missed.length) { response.msg = 'Missing modules: ' + this.Env._missed.join(); response.success = false; } if (this.config.throwFail) { callback(this, response); } else { try { callback(this, response); } catch (e) { this.error('use callback error', e, args); } } } }, /** Called from the `use` method queue to ensure that only one set of loading logic is performed at a time. @method _use @param {String} args* One or more modules to attach. @param {Function} [callback] Function to call once all required modules have been attached. @private **/ _use: function(args, callback) { if (!this.Array) { this._attach(['yui-base']); } var len, loader, handleBoot, Y = this, G_ENV = YUI.Env, mods = G_ENV.mods, Env = Y.Env, used = Env._used, aliases = G_ENV.aliases, queue = G_ENV._loaderQueue, firstArg = args[0], YArray = Y.Array, config = Y.config, boot = config.bootstrap, missing = [], i, r = [], ret = true, fetchCSS = config.fetchCSS, process = function(names, skip) { var i = 0, a = [], name, len, m, req, use; if (!names.length) { return; } if (aliases) { len = names.length; for (i = 0; i < len; i++) { if (aliases[names[i]] && !mods[names[i]]) { a = [].concat(a, aliases[names[i]]); } else { a.push(names[i]); } } names = a; } len = names.length; for (i = 0; i < len; i++) { name = names[i]; if (!skip) { r.push(name); } // only attach a module once if (used[name]) { continue; } m = mods[name]; req = null; use = null; if (m) { used[name] = true; req = m.details.requires; use = m.details.use; } else { // CSS files don't register themselves, see if it has // been loaded if (!G_ENV._loaded[VERSION][name]) { missing.push(name); } else { used[name] = true; // probably css } } // make sure requirements are attached if (req && req.length) { process(req); } // make sure we grab the submodule dependencies too if (use && use.length) { process(use, 1); } } }, handleLoader = function(fromLoader) { var response = fromLoader || { success: true, msg: 'not dynamic' }, redo, origMissing, ret = true, data = response.data; Y._loading = false; if (data) { origMissing = missing; missing = []; r = []; process(data); redo = missing.length; if (redo) { if ([].concat(missing).sort().join() == origMissing.sort().join()) { redo = false; } } } if (redo && data) { Y._loading = true; Y._use(missing, function() { if (Y._attach(data)) { Y._notify(callback, response, data); } }); } else { if (data) { ret = Y._attach(data); } if (ret) { Y._notify(callback, response, args); } } if (Y._useQueue && Y._useQueue.size() && !Y._loading) { Y._use.apply(Y, Y._useQueue.next()); } }; // YUI().use('*'); // bind everything available if (firstArg === '*') { args = []; for (i in mods) { if (mods.hasOwnProperty(i)) { args.push(i); } } ret = Y._attach(args); if (ret) { handleLoader(); } return Y; } if ((mods.loader || mods['loader-base']) && !Y.Loader) { Y._attach(['loader' + ((!mods.loader) ? '-base' : '')]); } // use loader to expand dependencies and sort the // requirements if it is available. if (boot && Y.Loader && args.length) { loader = getLoader(Y); loader.require(args); loader.ignoreRegistered = true; loader._boot = true; loader.calculate(null, (fetchCSS) ? null : 'js'); args = loader.sorted; loader._boot = false; } process(args); len = missing.length; if (len) { missing = YArray.dedupe(missing); len = missing.length; } // dynamic load if (boot && len && Y.Loader) { Y._loading = true; loader = getLoader(Y); loader.onEnd = handleLoader; loader.context = Y; loader.data = args; loader.ignoreRegistered = false; loader.require(missing); loader.insert(null, (fetchCSS) ? null : 'js'); } else if (boot && len && Y.Get && !Env.bootstrapped) { Y._loading = true; handleBoot = function() { Y._loading = false; queue.running = false; Env.bootstrapped = true; G_ENV._bootstrapping = false; if (Y._attach(['loader'])) { Y._use(args, callback); } }; if (G_ENV._bootstrapping) { queue.add(handleBoot); } else { G_ENV._bootstrapping = true; Y.Get.script(config.base + config.loaderPath, { onEnd: handleBoot }); } } else { ret = Y._attach(args); if (ret) { handleLoader(); } } return Y; }, /** Utility method for safely creating namespaces if they don't already exist. May be called statically on the YUI global object or as a method on a YUI instance. When called statically, a namespace will be created on the YUI global object: // Create `YUI.your.namespace.here` as nested objects, preserving any // objects that already exist instead of overwriting them. YUI.namespace('your.namespace.here'); When called as a method on a YUI instance, a namespace will be created on that instance: // Creates `Y.property.package`. Y.namespace('property.package'); Dots in the input string cause `namespace` to create nested objects for each token. If any part of the requested namespace already exists, the current object will be left in place and will not be overwritten. This allows multiple calls to `namespace` to preserve existing namespaced properties. If the first token in the namespace string is "YAHOO", that token is discarded. This is legacy behavior for backwards compatibility with YUI 2. Be careful with namespace tokens. Reserved words may work in some browsers and not others. For instance, the following will fail in some browsers because the supported version of JavaScript reserves the word "long": Y.namespace('really.long.nested.namespace'); Note: If you pass multiple arguments to create multiple namespaces, only the last one created is returned from this function. @method namespace @param {String} namespace* One or more namespaces to create. @return {Object} Reference to the last namespace object created. **/ namespace: function() { var a = arguments, o, i = 0, j, d, arg; for (; i < a.length; i++) { o = this; //Reset base object per argument or it will get reused from the last arg = a[i]; if (arg.indexOf(PERIOD) > -1) { //Skip this if no "." is present d = arg.split(PERIOD); for (j = (d[0] == 'YAHOO') ? 1 : 0; j < d.length; j++) { o[d[j]] = o[d[j]] || {}; o = o[d[j]]; } } else { o[arg] = o[arg] || {}; o = o[arg]; //Reset base object to the new object so it's returned } } return o; }, // this is replaced if the log module is included log: NOOP, message: NOOP, // this is replaced if the dump module is included dump: function (o) { return ''+o; }, /** Reports an error. The reporting mechanism is controlled by the `throwFail` configuration attribute. If `throwFail` is falsy, the message is logged. If `throwFail` is truthy, a JS exception is thrown. If an `errorFn` is specified in the config it must return `true` to indicate that the exception was handled and keep it from being thrown. @method error @param {String} msg Error message. @param {Error|String} [e] JavaScript error object or an error string. @param {String} [src] Source of the error (such as the name of the module in which the error occurred). @chainable **/ error: function(msg, e, src) { //TODO Add check for window.onerror here var Y = this, ret; if (Y.config.errorFn) { ret = Y.config.errorFn.apply(Y, arguments); } if (!ret) { throw (e || new Error(msg)); } else { Y.message(msg, 'error', ''+src); // don't scrub this one } return Y; }, /** Generates an id string that is unique among all YUI instances in this execution context. @method guid @param {String} [pre] Prefix. @return {String} Unique id. **/ guid: function(pre) { var id = this.Env._guidp + '_' + (++this.Env._uidx); return (pre) ? (pre + id) : id; }, /** Returns a unique id associated with the given object and (if *readOnly* is falsy) stamps the object with that id so it can be identified in the future. Stamping an object involves adding a `_yuid` property to it that contains the object's id. One exception to this is that in Internet Explorer, DOM nodes have a `uniqueID` property that contains a browser-generated unique id, which will be used instead of a YUI-generated id when available. @method stamp @param {Object} o Object to stamp. @param {Boolean} readOnly If truthy and the given object has not already been stamped, the object will not be modified and `null` will be returned. @return {String} Object's unique id, or `null` if *readOnly* was truthy and the given object was not already stamped. **/ stamp: function(o, readOnly) { var uid; if (!o) { return o; } // IE generates its own unique ID for dom nodes // The uniqueID property of a document node returns a new ID if (o.uniqueID && o.nodeType && o.nodeType !== 9) { uid = o.uniqueID; } else { uid = (typeof o === 'string') ? o : o._yuid; } if (!uid) { uid = this.guid(); if (!readOnly) { try { o._yuid = uid; } catch (e) { uid = null; } } } return uid; }, /** Destroys this YUI instance. @method destroy @since 3.3.0 **/ destroy: function() { var Y = this; if (Y.Event) { Y.Event._unload(); } delete instances[Y.id]; delete Y.Env; delete Y.config; } /** Safe `instanceof` wrapper that works around a memory leak in IE when the object being tested is `window` or `document`. Unless you are testing objects that may be `window` or `document`, you should use the native `instanceof` operator instead of this method. @method instanceOf @param {Object} o Object to check. @param {Object} type Class to check against. @since 3.3.0 **/ }; YUI.prototype = proto; // inheritance utilities are not available yet for (prop in proto) { if (proto.hasOwnProperty(prop)) { YUI[prop] = proto[prop]; } } /** Applies a configuration to all YUI instances in this execution context. The main use case for this method is in "mashups" where several third-party scripts need to write to a global YUI config, but cannot share a single centrally-managed config object. This way they can all call `YUI.applyConfig({})` instead of overwriting the single global config. @example YUI.applyConfig({ modules: { davglass: { fullpath: './davglass.js' } } }); YUI.applyConfig({ modules: { foo: { fullpath: './foo.js' } } }); YUI().use('davglass', function (Y) { // Module davglass will be available here. }); @method applyConfig @param {Object} o Configuration object to apply. @static @since 3.5.0 **/ YUI.applyConfig = function(o) { if (!o) { return; } //If there is a GlobalConfig, apply it first to set the defaults if (YUI.GlobalConfig) { this.prototype.applyConfig.call(this, YUI.GlobalConfig); } //Apply this config to it this.prototype.applyConfig.call(this, o); //Reset GlobalConfig to the combined config YUI.GlobalConfig = this.config; }; // set up the environment YUI._init(); if (hasWin) { // add a window load event at load time so we can capture // the case where it fires before dynamic loading is // complete. add(window, 'load', handleLoad); } else { handleLoad(); } YUI.Env.add = add; YUI.Env.remove = remove; /*global exports*/ // Support the CommonJS method for exporting our single global if (typeof exports == 'object') { exports.YUI = YUI; /** * Set a method to be called when `Get.script` is called in Node.js * `Get` will open the file, then pass it's content and it's path * to this method before attaching it. Commonly used for code coverage * instrumentation. Calling this multiple times will only * attach the last hook method. This method is only * available in Node.js. * @method setLoadHook * @static * @param {Function} fn The function to set * @param {String} fn.data The content of the file * @param {String} fn.path The file path of the file */ YUI.setLoadHook = function(fn) { YUI._getLoadHook = fn; }; /** * Load hook for `Y.Get.script` in Node.js, see `YUI.setLoadHook` * @method _getLoadHook * @private * @param {String} data The content of the file * @param {String} path The file path of the file */ YUI._getLoadHook = null; } YUI.Env[VERSION] = {}; }()); /** Config object that contains all of the configuration options for this `YUI` instance. This object is supplied by the implementer when instantiating YUI. Some properties have default values if they are not supplied by the implementer. This object should not be updated directly because some values are cached. Use `applyConfig()` to update the config object on a YUI instance that has already been configured. @class config @static **/ /** If `true` (the default), YUI will "bootstrap" the YUI Loader and module metadata if they're needed to load additional dependencies and aren't already available. Setting this to `false` will prevent YUI from automatically loading the Loader and module metadata, so you will need to manually ensure that they're available or handle dependency resolution yourself. @property {Boolean} bootstrap @default true **/ /** @property {Object} aliases **/ /** A hash of module group definitions. For each group you can specify a list of modules and the base path and combo spec to use when dynamically loading the modules. @example groups: { yui2: { // specify whether or not this group has a combo service combine: true, // The comboSeperator to use with this group's combo handler comboSep: ';', // The maxURLLength for this server maxURLLength: 500, // the base path for non-combo paths base: 'http://yui.yahooapis.com/2.8.0r4/build/', // the path to the combo service comboBase: 'http://yui.yahooapis.com/combo?', // a fragment to prepend to the path attribute when // when building combo urls root: '2.8.0r4/build/', // the module definitions modules: { yui2_yde: { path: "yahoo-dom-event/yahoo-dom-event.js" }, yui2_anim: { path: "animation/animation.js", requires: ['yui2_yde'] } } } } @property {Object} groups **/ /** Path to the Loader JS file, relative to the `base` path. This is used to dynamically bootstrap the Loader when it's needed and isn't yet available. @property {String} loaderPath @default "loader/loader-min.js" **/ /** If `true`, YUI will attempt to load CSS dependencies and skins. Set this to `false` to prevent YUI from loading any CSS, or set it to the string `"force"` to force CSS dependencies to be loaded even if their associated JS modules are already loaded. @property {Boolean|String} fetchCSS @default true **/ /** Default gallery version used to build gallery module urls. @property {String} gallery @since 3.1.0 **/ /** Default YUI 2 version used to build YUI 2 module urls. This is used for intrinsic YUI 2 support via the 2in3 project. Also see the `2in3` config for pulling different revisions of the wrapped YUI 2 modules. @property {String} yui2 @default "2.9.0" @since 3.1.0 **/ /** Revision number of YUI 2in3 modules that should be used when loading YUI 2in3. @property {String} 2in3 @default "4" @since 3.1.0 **/ /** Alternate console log function that should be used in environments without a supported native console. This function is executed with the YUI instance as its `this` object. @property {Function} logFn @since 3.1.0 **/ /** The minimum log level to log messages for. Log levels are defined incrementally. Messages greater than or equal to the level specified will be shown. All others will be discarded. The order of log levels in increasing priority is: debug info warn error @property {String} logLevel @default 'debug' @since 3.10.0 **/ /** Callback to execute when `Y.error()` is called. It receives the error message and a JavaScript error object if one was provided. This function is executed with the YUI instance as its `this` object. Returning `true` from this function will prevent an exception from being thrown. @property {Function} errorFn @param {String} errorFn.msg Error message @param {Object} [errorFn.err] Error object (if one was provided). @since 3.2.0 **/ /** A callback to execute when Loader fails to load one or more resources. This could be because of a script load failure. It could also be because a module fails to register itself when the `requireRegistration` config is `true`. If this function is defined, the `use()` callback will only be called when the loader succeeds. Otherwise, `use()` will always executes unless there was a JavaScript error when attaching a module. @property {Function} loadErrorFn @since 3.3.0 **/ /** If `true`, Loader will expect all loaded scripts to be first-class YUI modules that register themselves with the YUI global, and will trigger a failure if a loaded script does not register a YUI module. @property {Boolean} requireRegistration @default false @since 3.3.0 **/ /** Cache serviced use() requests. @property {Boolean} cacheUse @default true @since 3.3.0 @deprecated No longer used. **/ /** Whether or not YUI should use native ES5 functionality when available for features like `Y.Array.each()`, `Y.Object()`, etc. When `false`, YUI will always use its own fallback implementations instead of relying on ES5 functionality, even when ES5 functionality is available. @property {Boolean} useNativeES5 @default true @since 3.5.0 **/ /** * Leverage native JSON stringify if the browser has a native * implementation. In general, this is a good idea. See the Known Issues * section in the JSON user guide for caveats. The default value is true * for browsers with native JSON support. * * @property useNativeJSONStringify * @type Boolean * @default true * @since 3.8.0 */ /** * Leverage native JSON parse if the browser has a native implementation. * In general, this is a good idea. See the Known Issues section in the * JSON user guide for caveats. The default value is true for browsers with * native JSON support. * * @property useNativeJSONParse * @type Boolean * @default true * @since 3.8.0 */ /** Delay the `use` callback until a specific event has passed (`load`, `domready`, `contentready` or `available`) @property {Object|String} delayUntil @since 3.6.0 @example You can use `load` or `domready` strings by default: YUI({ delayUntil: 'domready' }, function (Y) { // This will not execute until 'domeready' occurs. }); Or you can delay until a node is available (with `available` or `contentready`): YUI({ delayUntil: { event: 'available', args : '#foo' } }, function (Y) { // This will not execute until a node matching the selector "#foo" is // available in the DOM. }); **/ YUI.add('yui-base', function (Y, NAME) { /* * YUI stub * @module yui * @submodule yui-base */ /** * The YUI module contains the components required for building the YUI * seed file. This includes the script loading mechanism, a simple queue, * and the core utilities for the library. * @module yui * @submodule yui-base */ /** * Provides core language utilites and extensions used throughout YUI. * * @class Lang * @static */ var L = Y.Lang || (Y.Lang = {}), STRING_PROTO = String.prototype, TOSTRING = Object.prototype.toString, TYPES = { 'undefined' : 'undefined', 'number' : 'number', 'boolean' : 'boolean', 'string' : 'string', '[object Function]': 'function', '[object RegExp]' : 'regexp', '[object Array]' : 'array', '[object Date]' : 'date', '[object Error]' : 'error' }, SUBREGEX = /\{\s*([^|}]+?)\s*(?:\|([^}]*))?\s*\}/g, WHITESPACE = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF", WHITESPACE_CLASS = "[\x09-\x0D\x20\xA0\u1680\u180E\u2000-\u200A\u2028\u2029\u202F\u205F\u3000\uFEFF]+", TRIM_LEFT_REGEX = new RegExp("^" + WHITESPACE_CLASS), TRIM_RIGHT_REGEX = new RegExp(WHITESPACE_CLASS + "$"), TRIMREGEX = new RegExp(TRIM_LEFT_REGEX.source + "|" + TRIM_RIGHT_REGEX.source, "g"), NATIVE_FN_REGEX = /\{\s*\[(?:native code|function)\]\s*\}/i; // -- Protected Methods -------------------------------------------------------- /** Returns `true` if the given function appears to be implemented in native code, `false` otherwise. Will always return `false` -- even in ES5-capable browsers -- if the `useNativeES5` YUI config option is set to `false`. This isn't guaranteed to be 100% accurate and won't work for anything other than functions, but it can be useful for determining whether a function like `Array.prototype.forEach` is native or a JS shim provided by another library. There's a great article by @kangax discussing certain flaws with this technique: While his points are valid, it's still possible to benefit from this function as long as it's used carefully and sparingly, and in such a way that false negatives have minimal consequences. It's used internally to avoid using potentially broken non-native ES5 shims that have been added to the page by other libraries. @method _isNative @param {Function} fn Function to test. @return {Boolean} `true` if _fn_ appears to be native, `false` otherwise. @static @protected @since 3.5.0 **/ L._isNative = function (fn) { return !!(Y.config.useNativeES5 && fn && NATIVE_FN_REGEX.test(fn)); }; // -- Public Methods ----------------------------------------------------------- /** * Determines whether or not the provided item is an array. * * Returns `false` for array-like collections such as the function `arguments` * collection or `HTMLElement` collections. Use `Y.Array.test()` if you want to * test for an array-like collection. * * @method isArray * @param o The object to test. * @return {boolean} true if o is an array. * @static */ L.isArray = L._isNative(Array.isArray) ? Array.isArray : function (o) { return L.type(o) === 'array'; }; /** * Determines whether or not the provided item is a boolean. * @method isBoolean * @static * @param o The object to test. * @return {boolean} true if o is a boolean. */ L.isBoolean = function(o) { return typeof o === 'boolean'; }; /** * Determines whether or not the supplied item is a date instance. * @method isDate * @static * @param o The object to test. * @return {boolean} true if o is a date. */ L.isDate = function(o) { return L.type(o) === 'date' && o.toString() !== 'Invalid Date' && !isNaN(o); }; /** *

* Determines whether or not the provided item is a function. * Note: Internet Explorer thinks certain functions are objects: *

* *
 * var obj = document.createElement("object");
 * Y.Lang.isFunction(obj.getAttribute) // reports false in IE
 *  
 * var input = document.createElement("input"); // append to body
 * Y.Lang.isFunction(input.focus) // reports false in IE
 * 
* *

* You will have to implement additional tests if these functions * matter to you. *

* * @method isFunction * @static * @param o The object to test. * @return {boolean} true if o is a function. */ L.isFunction = function(o) { return L.type(o) === 'function'; }; /** * Determines whether or not the provided item is null. * @method isNull * @static * @param o The object to test. * @return {boolean} true if o is null. */ L.isNull = function(o) { return o === null; }; /** * Determines whether or not the provided item is a legal number. * @method isNumber * @static * @param o The object to test. * @return {boolean} true if o is a number. */ L.isNumber = function(o) { return typeof o === 'number' && isFinite(o); }; /** * Determines whether or not the provided item is of type object * or function. Note that arrays are also objects, so * Y.Lang.isObject([]) === true. * @method isObject * @static * @param o The object to test. * @param failfn {boolean} fail if the input is a function. * @return {boolean} true if o is an object. * @see isPlainObject */ L.isObject = function(o, failfn) { var t = typeof o; return (o && (t === 'object' || (!failfn && (t === 'function' || L.isFunction(o))))) || false; }; /** * Determines whether or not the provided item is a string. * @method isString * @static * @param o The object to test. * @return {boolean} true if o is a string. */ L.isString = function(o) { return typeof o === 'string'; }; /** * Determines whether or not the provided item is undefined. * @method isUndefined * @static * @param o The object to test. * @return {boolean} true if o is undefined. */ L.isUndefined = function(o) { return typeof o === 'undefined'; }; /** * A convenience method for detecting a legitimate non-null value. * Returns false for null/undefined/NaN, true for other values, * including 0/false/'' * @method isValue * @static * @param o The item to test. * @return {boolean} true if it is not null/undefined/NaN || false. */ L.isValue = function(o) { var t = L.type(o); switch (t) { case 'number': return isFinite(o); case 'null': // fallthru case 'undefined': return false; default: return !!t; } }; /** * Returns the current time in milliseconds. * * @method now * @return {Number} Current time in milliseconds. * @static * @since 3.3.0 */ L.now = Date.now || function () { return new Date().getTime(); }; /** * Lightweight version of Y.substitute. Uses the same template * structure as Y.substitute, but doesn't support recursion, * auto-object coersion, or formats. * @method sub * @param {string} s String to be modified. * @param {object} o Object containing replacement values. * @return {string} the substitute result. * @static * @since 3.2.0 */ L.sub = function(s, o) { return s.replace ? s.replace(SUBREGEX, function (match, key) { return L.isUndefined(o[key]) ? match : o[key]; }) : s; }; /** * Returns a string without any leading or trailing whitespace. If * the input is not a string, the input will be returned untouched. * @method trim * @static * @param s {string} the string to trim. * @return {string} the trimmed string. */ L.trim = L._isNative(STRING_PROTO.trim) && !WHITESPACE.trim() ? function(s) { return s && s.trim ? s.trim() : s; } : function (s) { try { return s.replace(TRIMREGEX, ''); } catch (e) { return s; } }; /** * Returns a string without any leading whitespace. * @method trimLeft * @static * @param s {string} the string to trim. * @return {string} the trimmed string. */ L.trimLeft = L._isNative(STRING_PROTO.trimLeft) && !WHITESPACE.trimLeft() ? function (s) { return s.trimLeft(); } : function (s) { return s.replace(TRIM_LEFT_REGEX, ''); }; /** * Returns a string without any trailing whitespace. * @method trimRight * @static * @param s {string} the string to trim. * @return {string} the trimmed string. */ L.trimRight = L._isNative(STRING_PROTO.trimRight) && !WHITESPACE.trimRight() ? function (s) { return s.trimRight(); } : function (s) { return s.replace(TRIM_RIGHT_REGEX, ''); }; /** Returns one of the following strings, representing the type of the item passed in: * "array" * "boolean" * "date" * "error" * "function" * "null" * "number" * "object" * "regexp" * "string" * "undefined" Known issues: * `typeof HTMLElementCollection` returns function in Safari, but `Y.Lang.type()` reports "object", which could be a good thing -- but it actually caused the logic in Y.Lang.isObject to fail. @method type @param o the item to test. @return {string} the detected type. @static **/ L.type = function(o) { return TYPES[typeof o] || TYPES[TOSTRING.call(o)] || (o ? 'object' : 'null'); }; /** @module yui @submodule yui-base */ var Lang = Y.Lang, Native = Array.prototype, hasOwn = Object.prototype.hasOwnProperty; /** Provides utility methods for working with arrays. Additional array helpers can be found in the `collection` and `array-extras` modules. `Y.Array(thing)` returns a native array created from _thing_. Depending on _thing_'s type, one of the following will happen: * Arrays are returned unmodified unless a non-zero _startIndex_ is specified. * Array-like collections (see `Array.test()`) are converted to arrays. * For everything else, a new array is created with _thing_ as the sole item. Note: elements that are also collections, such as `
` and ``, to be array-like. @method test @param {Object} obj Object to test. @return {Number} A number indicating the results of the test: * 0: Neither an array nor an array-like collection. * 1: Real array. * 2: Array-like collection. @static **/ YArray.test = function (obj) { var result = 0; if (Lang.isArray(obj)) { result = 1; } else if (Lang.isObject(obj)) { try { // indexed, but no tagName (element) or scrollTo/document (window. From DOM.isWindow test which we can't use here), // or functions without apply/call (Safari // HTMLElementCollection bug). if ('length' in obj && !obj.tagName && !(obj.scrollTo && obj.document) && !obj.apply) { result = 2; } } catch (ex) {} } return result; }; /** * The YUI module contains the components required for building the YUI * seed file. This includes the script loading mechanism, a simple queue, * and the core utilities for the library. * @module yui * @submodule yui-base */ /** * A simple FIFO queue. Items are added to the Queue with add(1..n items) and * removed using next(). * * @class Queue * @constructor * @param {MIXED} item* 0..n items to seed the queue. */ function Queue() { this._init(); this.add.apply(this, arguments); } Queue.prototype = { /** * Initialize the queue * * @method _init * @protected */ _init: function() { /** * The collection of enqueued items * * @property _q * @type Array * @protected */ this._q = []; }, /** * Get the next item in the queue. FIFO support * * @method next * @return {MIXED} the next item in the queue. */ next: function() { return this._q.shift(); }, /** * Get the last in the queue. LIFO support. * * @method last * @return {MIXED} the last item in the queue. */ last: function() { return this._q.pop(); }, /** * Add 0..n items to the end of the queue. * * @method add * @param {MIXED} item* 0..n items. * @return {object} this queue. */ add: function() { this._q.push.apply(this._q, arguments); return this; }, /** * Returns the current number of queued items. * * @method size * @return {Number} The size. */ size: function() { return this._q.length; } }; Y.Queue = Queue; YUI.Env._loaderQueue = YUI.Env._loaderQueue || new Queue(); /** The YUI module contains the components required for building the YUI seed file. This includes the script loading mechanism, a simple queue, and the core utilities for the library. @module yui @submodule yui-base **/ var CACHED_DELIMITER = '__', hasOwn = Object.prototype.hasOwnProperty, isObject = Y.Lang.isObject; /** Returns a wrapper for a function which caches the return value of that function, keyed off of the combined string representation of the argument values provided when the wrapper is called. Calling this function again with the same arguments will return the cached value rather than executing the wrapped function. Note that since the cache is keyed off of the string representation of arguments passed to the wrapper function, arguments that aren't strings and don't provide a meaningful `toString()` method may result in unexpected caching behavior. For example, the objects `{}` and `{foo: 'bar'}` would both be converted to the string `[object Object]` when used as a cache key. @method cached @param {Function} source The function to memoize. @param {Object} [cache={}] Object in which to store cached values. You may seed this object with pre-existing cached values if desired. @param {any} [refetch] If supplied, this value is compared with the cached value using a `==` comparison. If the values are equal, the wrapped function is executed again even though a cached value exists. @return {Function} Wrapped function. @for YUI **/ Y.cached = function (source, cache, refetch) { /*jshint expr: true*/ cache || (cache = {}); return function (arg) { var key = arguments.length > 1 ? Array.prototype.join.call(arguments, CACHED_DELIMITER) : String(arg); /*jshint eqeqeq: false*/ if (!(key in cache) || (refetch && cache[key] == refetch)) { cache[key] = source.apply(source, arguments); } return cache[key]; }; }; /** Returns the `location` object from the window/frame in which this YUI instance operates, or `undefined` when executing in a non-browser environment (e.g. Node.js). It is _not_ recommended to hold references to the `window.location` object outside of the scope of a function in which its properties are being accessed or its methods are being called. This is because of a nasty bug/issue that exists in both Safari and MobileSafari browsers: [WebKit Bug 34679](https://bugs.webkit.org/show_bug.cgi?id=34679). @method getLocation @return {location} The `location` object from the window/frame in which this YUI instance operates. @since 3.5.0 **/ Y.getLocation = function () { // It is safer to look this up every time because yui-base is attached to a // YUI instance before a user's config is applied; i.e. `Y.config.win` does // not point the correct window object when this file is loaded. var win = Y.config.win; // It is not safe to hold a reference to the `location` object outside the // scope in which it is being used. The WebKit engine used in Safari and // MobileSafari will "disconnect" the `location` object from the `window` // when a page is restored from back/forward history cache. return win && win.location; }; /** Returns a new object containing all of the properties of all the supplied objects. The properties from later objects will overwrite those in earlier objects. Passing in a single object will create a shallow copy of it. For a deep copy, use `clone()`. @method merge @param {Object} objects* One or more objects to merge. @return {Object} A new merged object. **/ Y.merge = function () { var i = 0, len = arguments.length, result = {}, key, obj; for (; i < len; ++i) { obj = arguments[i]; for (key in obj) { if (hasOwn.call(obj, key)) { result[key] = obj[key]; } } } return result; }; /** Mixes _supplier_'s properties into _receiver_. Properties on _receiver_ or _receiver_'s prototype will not be overwritten or shadowed unless the _overwrite_ parameter is `true`, and will not be merged unless the _merge_ parameter is `true`. In the default mode (0), only properties the supplier owns are copied (prototype properties are not copied). The following copying modes are available: * `0`: _Default_. Object to object. * `1`: Prototype to prototype. * `2`: Prototype to prototype and object to object. * `3`: Prototype to object. * `4`: Object to prototype. @method mix @param {Function|Object} receiver The object or function to receive the mixed properties. @param {Function|Object} supplier The object or function supplying the properties to be mixed. @param {Boolean} [overwrite=false] If `true`, properties that already exist on the receiver will be overwritten with properties from the supplier. @param {String[]} [whitelist] An array of property names to copy. If specified, only the whitelisted properties will be copied, and all others will be ignored. @param {Number} [mode=0] Mix mode to use. See above for available modes. @param {Boolean} [merge=false] If `true`, objects and arrays that already exist on the receiver will have the corresponding object/array from the supplier merged into them, rather than being skipped or overwritten. When both _overwrite_ and _merge_ are `true`, _merge_ takes precedence. @return {Function|Object|YUI} The receiver, or the YUI instance if the specified receiver is falsy. **/ Y.mix = function(receiver, supplier, overwrite, whitelist, mode, merge) { var alwaysOverwrite, exists, from, i, key, len, to; // If no supplier is given, we return the receiver. If no receiver is given, // we return Y. Returning Y doesn't make much sense to me, but it's // grandfathered in for backcompat reasons. if (!receiver || !supplier) { return receiver || Y; } if (mode) { // In mode 2 (prototype to prototype and object to object), we recurse // once to do the proto to proto mix. The object to object mix will be // handled later on. if (mode === 2) { Y.mix(receiver.prototype, supplier.prototype, overwrite, whitelist, 0, merge); } // Depending on which mode is specified, we may be copying from or to // the prototypes of the supplier and receiver. from = mode === 1 || mode === 3 ? supplier.prototype : supplier; to = mode === 1 || mode === 4 ? receiver.prototype : receiver; // If either the supplier or receiver doesn't actually have a // prototype property, then we could end up with an undefined `from` // or `to`. If that happens, we abort and return the receiver. if (!from || !to) { return receiver; } } else { from = supplier; to = receiver; } // If `overwrite` is truthy and `merge` is falsy, then we can skip a // property existence check on each iteration and save some time. alwaysOverwrite = overwrite && !merge; if (whitelist) { for (i = 0, len = whitelist.length; i < len; ++i) { key = whitelist[i]; // We call `Object.prototype.hasOwnProperty` instead of calling // `hasOwnProperty` on the object itself, since the object's // `hasOwnProperty` method may have been overridden or removed. // Also, some native objects don't implement a `hasOwnProperty` // method. if (!hasOwn.call(from, key)) { continue; } // The `key in to` check here is (sadly) intentional for backwards // compatibility reasons. It prevents undesired shadowing of // prototype members on `to`. exists = alwaysOverwrite ? false : key in to; if (merge && exists && isObject(to[key], true) && isObject(from[key], true)) { // If we're in merge mode, and the key is present on both // objects, and the value on both objects is either an object or // an array (but not a function), then we recurse to merge the // `from` value into the `to` value instead of overwriting it. // // Note: It's intentional that the whitelist isn't passed to the // recursive call here. This is legacy behavior that lots of // code still depends on. Y.mix(to[key], from[key], overwrite, null, 0, merge); } else if (overwrite || !exists) { // We're not in merge mode, so we'll only copy the `from` value // to the `to` value if we're in overwrite mode or if the // current key doesn't exist on the `to` object. to[key] = from[key]; } } } else { for (key in from) { // The code duplication here is for runtime performance reasons. // Combining whitelist and non-whitelist operations into a single // loop or breaking the shared logic out into a function both result // in worse performance, and Y.mix is critical enough that the byte // tradeoff is worth it. if (!hasOwn.call(from, key)) { continue; } // The `key in to` check here is (sadly) intentional for backwards // compatibility reasons. It prevents undesired shadowing of // prototype members on `to`. exists = alwaysOverwrite ? false : key in to; if (merge && exists && isObject(to[key], true) && isObject(from[key], true)) { Y.mix(to[key], from[key], overwrite, null, 0, merge); } else if (overwrite || !exists) { to[key] = from[key]; } } // If this is an IE browser with the JScript enumeration bug, force // enumeration of the buggy properties by making a recursive call with // the buggy properties as the whitelist. if (Y.Object._hasEnumBug) { Y.mix(to, from, overwrite, Y.Object._forceEnum, mode, merge); } } return receiver; }; /** * The YUI module contains the components required for building the YUI * seed file. This includes the script loading mechanism, a simple queue, * and the core utilities for the library. * @module yui * @submodule yui-base */ /** * Adds utilities to the YUI instance for working with objects. * * @class Object */ var Lang = Y.Lang, hasOwn = Object.prototype.hasOwnProperty, UNDEFINED, // <-- Note the comma. We're still declaring vars. /** * Returns a new object that uses _obj_ as its prototype. This method wraps the * native ES5 `Object.create()` method if available, but doesn't currently * pass through `Object.create()`'s second argument (properties) in order to * ensure compatibility with older browsers. * * @method () * @param {Object} obj Prototype object. * @return {Object} New object using _obj_ as its prototype. * @static */ O = Y.Object = Lang._isNative(Object.create) ? function (obj) { // We currently wrap the native Object.create instead of simply aliasing it // to ensure consistency with our fallback shim, which currently doesn't // support Object.create()'s second argument (properties). Once we have a // safe fallback for the properties arg, we can stop wrapping // Object.create(). return Object.create(obj); } : (function () { // Reusable constructor function for the Object.create() shim. function F() {} // The actual shim. return function (obj) { F.prototype = obj; return new F(); }; }()), /** * Property names that IE doesn't enumerate in for..in loops, even when they * should be enumerable. When `_hasEnumBug` is `true`, it's necessary to * manually enumerate these properties. * * @property _forceEnum * @type String[] * @protected * @static */ forceEnum = O._forceEnum = [ 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toString', 'toLocaleString', 'valueOf' ], /** * `true` if this browser has the JScript enumeration bug that prevents * enumeration of the properties named in the `_forceEnum` array, `false` * otherwise. * * See: * - * - * * @property _hasEnumBug * @type Boolean * @protected * @static */ hasEnumBug = O._hasEnumBug = !{valueOf: 0}.propertyIsEnumerable('valueOf'), /** * `true` if this browser incorrectly considers the `prototype` property of * functions to be enumerable. Currently known to affect Opera 11.50 and Android 2.3.x. * * @property _hasProtoEnumBug * @type Boolean * @protected * @static */ hasProtoEnumBug = O._hasProtoEnumBug = (function () {}).propertyIsEnumerable('prototype'), /** * Returns `true` if _key_ exists on _obj_, `false` if _key_ doesn't exist or * exists only on _obj_'s prototype. This is essentially a safer version of * `obj.hasOwnProperty()`. * * @method owns * @param {Object} obj Object to test. * @param {String} key Property name to look for. * @return {Boolean} `true` if _key_ exists on _obj_, `false` otherwise. * @static */ owns = O.owns = function (obj, key) { return !!obj && hasOwn.call(obj, key); }; // <-- End of var declarations. /** * Alias for `owns()`. * * @method hasKey * @param {Object} obj Object to test. * @param {String} key Property name to look for. * @return {Boolean} `true` if _key_ exists on _obj_, `false` otherwise. * @static */ O.hasKey = owns; /** * Returns an array containing the object's enumerable keys. Does not include * prototype keys or non-enumerable keys. * * Note that keys are returned in enumeration order (that is, in the same order * that they would be enumerated by a `for-in` loop), which may not be the same * as the order in which they were defined. * * This method is an alias for the native ES5 `Object.keys()` method if * available and non-buggy. The Opera 11.50 and Android 2.3.x versions of * `Object.keys()` have an inconsistency as they consider `prototype` to be * enumerable, so a non-native shim is used to rectify the difference. * * @example * * Y.Object.keys({a: 'foo', b: 'bar', c: 'baz'}); * // => ['a', 'b', 'c'] * * @method keys * @param {Object} obj An object. * @return {String[]} Array of keys. * @static */ O.keys = Lang._isNative(Object.keys) && !hasProtoEnumBug ? Object.keys : function (obj) { if (!Lang.isObject(obj)) { throw new TypeError('Object.keys called on a non-object'); } var keys = [], i, key, len; if (hasProtoEnumBug && typeof obj === 'function') { for (key in obj) { if (owns(obj, key) && key !== 'prototype') { keys.push(key); } } } else { for (key in obj) { if (owns(obj, key)) { keys.push(key); } } } if (hasEnumBug) { for (i = 0, len = forceEnum.length; i < len; ++i) { key = forceEnum[i]; if (owns(obj, key)) { keys.push(key); } } } return keys; }; /** * Returns an array containing the values of the object's enumerable keys. * * Note that values are returned in enumeration order (that is, in the same * order that they would be enumerated by a `for-in` loop), which may not be the * same as the order in which they were defined. * * @example * * Y.Object.values({a: 'foo', b: 'bar', c: 'baz'}); * // => ['foo', 'bar', 'baz'] * * @method values * @param {Object} obj An object. * @return {Array} Array of values. * @static */ O.values = function (obj) { var keys = O.keys(obj), i = 0, len = keys.length, values = []; for (; i < len; ++i) { values.push(obj[keys[i]]); } return values; }; /** * Returns the number of enumerable keys owned by an object. * * @method size * @param {Object} obj An object. * @return {Number} The object's size. * @static */ O.size = function (obj) { try { return O.keys(obj).length; } catch (ex) { return 0; // Legacy behavior for non-objects. } }; /** * Returns `true` if the object owns an enumerable property with the specified * value. * * @method hasValue * @param {Object} obj An object. * @param {any} value The value to search for. * @return {Boolean} `true` if _obj_ contains _value_, `false` otherwise. * @static */ O.hasValue = function (obj, value) { return Y.Array.indexOf(O.values(obj), value) > -1; }; /** * Executes a function on each enumerable property in _obj_. The function * receives the value, the key, and the object itself as parameters (in that * order). * * By default, only properties owned by _obj_ are enumerated. To include * prototype properties, set the _proto_ parameter to `true`. * * @method each * @param {Object} obj Object to enumerate. * @param {Function} fn Function to execute on each enumerable property. * @param {mixed} fn.value Value of the current property. * @param {String} fn.key Key of the current property. * @param {Object} fn.obj Object being enumerated. * @param {Object} [thisObj] `this` object to use when calling _fn_. * @param {Boolean} [proto=false] Include prototype properties. * @return {YUI} the YUI instance. * @chainable * @static */ O.each = function (obj, fn, thisObj, proto) { var key; for (key in obj) { if (proto || owns(obj, key)) { fn.call(thisObj || Y, obj[key], key, obj); } } return Y; }; /** * Executes a function on each enumerable property in _obj_, but halts if the * function returns a truthy value. The function receives the value, the key, * and the object itself as paramters (in that order). * * By default, only properties owned by _obj_ are enumerated. To include * prototype properties, set the _proto_ parameter to `true`. * * @method some * @param {Object} obj Object to enumerate. * @param {Function} fn Function to execute on each enumerable property. * @param {mixed} fn.value Value of the current property. * @param {String} fn.key Key of the current property. * @param {Object} fn.obj Object being enumerated. * @param {Object} [thisObj] `this` object to use when calling _fn_. * @param {Boolean} [proto=false] Include prototype properties. * @return {Boolean} `true` if any execution of _fn_ returns a truthy value, * `false` otherwise. * @static */ O.some = function (obj, fn, thisObj, proto) { var key; for (key in obj) { if (proto || owns(obj, key)) { if (fn.call(thisObj || Y, obj[key], key, obj)) { return true; } } } return false; }; /** * Retrieves the sub value at the provided path, * from the value object provided. * * @method getValue * @static * @param o The object from which to extract the property value. * @param path {Array} A path array, specifying the object traversal path * from which to obtain the sub value. * @return {Any} The value stored in the path, undefined if not found, * undefined if the source is not an object. Returns the source object * if an empty path is provided. */ O.getValue = function(o, path) { if (!Lang.isObject(o)) { return UNDEFINED; } var i, p = Y.Array(path), l = p.length; for (i = 0; o !== UNDEFINED && i < l; i++) { o = o[p[i]]; } return o; }; /** * Sets the sub-attribute value at the provided path on the * value object. Returns the modified value object, or * undefined if the path is invalid. * * @method setValue * @static * @param o The object on which to set the sub value. * @param path {Array} A path array, specifying the object traversal path * at which to set the sub value. * @param val {Any} The new value for the sub-attribute. * @return {Object} The modified object, with the new sub value set, or * undefined, if the path was invalid. */ O.setValue = function(o, path, val) { var i, p = Y.Array(path), leafIdx = p.length - 1, ref = o; if (leafIdx >= 0) { for (i = 0; ref !== UNDEFINED && i < leafIdx; i++) { ref = ref[p[i]]; } if (ref !== UNDEFINED) { ref[p[i]] = val; } else { return UNDEFINED; } } return o; }; /** * Returns `true` if the object has no enumerable properties of its own. * * @method isEmpty * @param {Object} obj An object. * @return {Boolean} `true` if the object is empty. * @static * @since 3.2.0 */ O.isEmpty = function (obj) { return !O.keys(Object(obj)).length; }; /** * The YUI module contains the components required for building the YUI seed * file. This includes the script loading mechanism, a simple queue, and the * core utilities for the library. * @module yui * @submodule yui-base */ /** * YUI user agent detection. * Do not fork for a browser if it can be avoided. Use feature detection when * you can. Use the user agent as a last resort. For all fields listed * as @type float, UA stores a version number for the browser engine, * 0 otherwise. This value may or may not map to the version number of * the browser using the engine. The value is presented as a float so * that it can easily be used for boolean evaluation as well as for * looking for a particular range of versions. Because of this, * some of the granularity of the version info may be lost. The fields that * are @type string default to null. The API docs list the values that * these fields can have. * @class UA * @static */ /** * Static method on `YUI.Env` for parsing a UA string. Called at instantiation * to populate `Y.UA`. * * @static * @method parseUA * @param {String} [subUA=navigator.userAgent] UA string to parse * @return {Object} The Y.UA object */ YUI.Env.parseUA = function(subUA) { var numberify = function(s) { var c = 0; return parseFloat(s.replace(/\./g, function() { return (c++ === 1) ? '' : '.'; })); }, win = Y.config.win, nav = win && win.navigator, o = { /** * Internet Explorer version number or 0. Example: 6 * @property ie * @type float * @static */ ie: 0, /** * Opera version number or 0. Example: 9.2 * @property opera * @type float * @static */ opera: 0, /** * Gecko engine revision number. Will evaluate to 1 if Gecko * is detected but the revision could not be found. Other browsers * will be 0. Example: 1.8 *
         * Firefox 1.0.0.4: 1.7.8   <-- Reports 1.7
         * Firefox 1.5.0.9: 1.8.0.9 <-- 1.8
         * Firefox 2.0.0.3: 1.8.1.3 <-- 1.81
         * Firefox 3.0   <-- 1.9
         * Firefox 3.5   <-- 1.91
         * 
* @property gecko * @type float * @static */ gecko: 0, /** * AppleWebKit version. KHTML browsers that are not WebKit browsers * will evaluate to 1, other browsers 0. Example: 418.9 *
         * Safari 1.3.2 (312.6): 312.8.1 <-- Reports 312.8 -- currently the
         *                                   latest available for Mac OSX 10.3.
         * Safari 2.0.2:         416     <-- hasOwnProperty introduced
         * Safari 2.0.4:         418     <-- preventDefault fixed
         * Safari 2.0.4 (419.3): 418.9.1 <-- One version of Safari may run
         *                                   different versions of webkit
         * Safari 2.0.4 (419.3): 419     <-- Tiger installations that have been
         *                                   updated, but not updated
         *                                   to the latest patch.
         * Webkit 212 nightly:   522+    <-- Safari 3.0 precursor (with native
         * SVG and many major issues fixed).
         * Safari 3.0.4 (523.12) 523.12  <-- First Tiger release - automatic
         * update from 2.x via the 10.4.11 OS patch.
         * Webkit nightly 1/2008:525+    <-- Supports DOMContentLoaded event.
         *                                   yahoo.com user agent hack removed.
         * 
* http://en.wikipedia.org/wiki/Safari_version_history * @property webkit * @type float * @static */ webkit: 0, /** * Safari will be detected as webkit, but this property will also * be populated with the Safari version number * @property safari * @type float * @static */ safari: 0, /** * Chrome will be detected as webkit, but this property will also * be populated with the Chrome version number * @property chrome * @type float * @static */ chrome: 0, /** * The mobile property will be set to a string containing any relevant * user agent information when a modern mobile browser is detected. * Currently limited to Safari on the iPhone/iPod Touch, Nokia N-series * devices with the WebKit-based browser, and Opera Mini. * @property mobile * @type string * @default null * @static */ mobile: null, /** * Adobe AIR version number or 0. Only populated if webkit is detected. * Example: 1.0 * @property air * @type float */ air: 0, /** * PhantomJS version number or 0. Only populated if webkit is detected. * Example: 1.0 * @property phantomjs * @type float */ phantomjs: 0, /** * Detects Apple iPad's OS version * @property ipad * @type float * @static */ ipad: 0, /** * Detects Apple iPhone's OS version * @property iphone * @type float * @static */ iphone: 0, /** * Detects Apples iPod's OS version * @property ipod * @type float * @static */ ipod: 0, /** * General truthy check for iPad, iPhone or iPod * @property ios * @type Boolean * @default null * @static */ ios: null, /** * Detects Googles Android OS version * @property android * @type float * @static */ android: 0, /** * Detects Kindle Silk * @property silk * @type float * @static */ silk: 0, /** * Detects Kindle Silk Acceleration * @property accel * @type Boolean * @static */ accel: false, /** * Detects Palms WebOS version * @property webos * @type float * @static */ webos: 0, /** * Google Caja version number or 0. * @property caja * @type float */ caja: nav && nav.cajaVersion, /** * Set to true if the page appears to be in SSL * @property secure * @type boolean * @static */ secure: false, /** * The operating system. Currently only detecting windows or macintosh * @property os * @type string * @default null * @static */ os: null, /** * The Nodejs Version * @property nodejs * @type float * @default 0 * @static */ nodejs: 0, /** * Window8/IE10 Application host environment * @property winjs * @type Boolean * @static */ winjs: !!((typeof Windows !== "undefined") && Windows.System), /** * Are touch/msPointer events available on this device * @property touchEnabled * @type Boolean * @static */ touchEnabled: false }, ua = subUA || nav && nav.userAgent, loc = win && win.location, href = loc && loc.href, m; /** * The User Agent string that was parsed * @property userAgent * @type String * @static */ o.userAgent = ua; o.secure = href && (href.toLowerCase().indexOf('https') === 0); if (ua) { if ((/windows|win32/i).test(ua)) { o.os = 'windows'; } else if ((/macintosh|mac_powerpc/i).test(ua)) { o.os = 'macintosh'; } else if ((/android/i).test(ua)) { o.os = 'android'; } else if ((/symbos/i).test(ua)) { o.os = 'symbos'; } else if ((/linux/i).test(ua)) { o.os = 'linux'; } else if ((/rhino/i).test(ua)) { o.os = 'rhino'; } // Modern KHTML browsers should qualify as Safari X-Grade if ((/KHTML/).test(ua)) { o.webkit = 1; } if ((/IEMobile|XBLWP7/).test(ua)) { o.mobile = 'windows'; } if ((/Fennec/).test(ua)) { o.mobile = 'gecko'; } // Modern WebKit browsers are at least X-Grade m = ua.match(/AppleWebKit\/([^\s]*)/); if (m && m[1]) { o.webkit = numberify(m[1]); o.safari = o.webkit; if (/PhantomJS/.test(ua)) { m = ua.match(/PhantomJS\/([^\s]*)/); if (m && m[1]) { o.phantomjs = numberify(m[1]); } } // Mobile browser check if (/ Mobile\//.test(ua) || (/iPad|iPod|iPhone/).test(ua)) { o.mobile = 'Apple'; // iPhone or iPod Touch m = ua.match(/OS ([^\s]*)/); if (m && m[1]) { m = numberify(m[1].replace('_', '.')); } o.ios = m; o.os = 'ios'; o.ipad = o.ipod = o.iphone = 0; m = ua.match(/iPad|iPod|iPhone/); if (m && m[0]) { o[m[0].toLowerCase()] = o.ios; } } else { m = ua.match(/NokiaN[^\/]*|webOS\/\d\.\d/); if (m) { // Nokia N-series, webOS, ex: NokiaN95 o.mobile = m[0]; } if (/webOS/.test(ua)) { o.mobile = 'WebOS'; m = ua.match(/webOS\/([^\s]*);/); if (m && m[1]) { o.webos = numberify(m[1]); } } if (/ Android/.test(ua)) { if (/Mobile/.test(ua)) { o.mobile = 'Android'; } m = ua.match(/Android ([^\s]*);/); if (m && m[1]) { o.android = numberify(m[1]); } } if (/Silk/.test(ua)) { m = ua.match(/Silk\/([^\s]*)\)/); if (m && m[1]) { o.silk = numberify(m[1]); } if (!o.android) { o.android = 2.34; //Hack for desktop mode in Kindle o.os = 'Android'; } if (/Accelerated=true/.test(ua)) { o.accel = true; } } } m = ua.match(/OPR\/(\d+\.\d+)/); if (m && m[1]) { // Opera 15+ with Blink (pretends to be both Chrome and Safari) o.opera = numberify(m[1]); } else { m = ua.match(/(Chrome|CrMo|CriOS)\/([^\s]*)/); if (m && m[1] && m[2]) { o.chrome = numberify(m[2]); // Chrome o.safari = 0; //Reset safari back to 0 if (m[1] === 'CrMo') { o.mobile = 'chrome'; } } else { m = ua.match(/AdobeAIR\/([^\s]*)/); if (m) { o.air = m[0]; // Adobe AIR 1.0 or better } } } } if (!o.webkit) { // not webkit // @todo check Opera/8.01 (J2ME/MIDP; Opera Mini/2.0.4509/1316; fi; U; ssr) if (/Opera/.test(ua)) { m = ua.match(/Opera[\s\/]([^\s]*)/); if (m && m[1]) { o.opera = numberify(m[1]); } m = ua.match(/Version\/([^\s]*)/); if (m && m[1]) { o.opera = numberify(m[1]); // opera 10+ } if (/Opera Mobi/.test(ua)) { o.mobile = 'opera'; m = ua.replace('Opera Mobi', '').match(/Opera ([^\s]*)/); if (m && m[1]) { o.opera = numberify(m[1]); } } m = ua.match(/Opera Mini[^;]*/); if (m) { o.mobile = m[0]; // ex: Opera Mini/2.0.4509/1316 } } else { // not opera or webkit m = ua.match(/MSIE ([^;]*)|Trident.*; rv:([0-9.]+)/); if (m && (m[1] || m[2])) { o.ie = numberify(m[1] || m[2]); } else { // not opera, webkit, or ie m = ua.match(/Gecko\/([^\s]*)/); if (m) { o.gecko = 1; // Gecko detected, look for revision m = ua.match(/rv:([^\s\)]*)/); if (m && m[1]) { o.gecko = numberify(m[1]); if (/Mobile|Tablet/.test(ua)) { o.mobile = "ffos"; } } } } } } } //Check for known properties to tell if touch events are enabled on this device or if //the number of MSPointer touchpoints on this device is greater than 0. if (win && nav && !(o.chrome && o.chrome < 6)) { o.touchEnabled = (("ontouchstart" in win) || (("msMaxTouchPoints" in nav) && (nav.msMaxTouchPoints > 0))); } //It was a parsed UA, do not assign the global value. if (!subUA) { if (typeof process === 'object') { if (process.versions && process.versions.node) { //NodeJS o.os = process.platform; o.nodejs = numberify(process.versions.node); } } YUI.Env.UA = o; } return o; }; Y.UA = YUI.Env.UA || YUI.Env.parseUA(); /** Performs a simple comparison between two version numbers, accounting for standard versioning logic such as the fact that "535.8" is a lower version than "535.24", even though a simple numerical comparison would indicate that it's greater. Also accounts for cases such as "1.1" vs. "1.1.0", which are considered equivalent. Returns -1 if version _a_ is lower than version _b_, 0 if they're equivalent, 1 if _a_ is higher than _b_. Versions may be numbers or strings containing numbers and dots. For example, both `535` and `"535.8.10"` are acceptable. A version string containing non-numeric characters, like `"535.8.beta"`, may produce unexpected results. @method compareVersions @param {Number|String} a First version number to compare. @param {Number|String} b Second version number to compare. @return -1 if _a_ is lower than _b_, 0 if they're equivalent, 1 if _a_ is higher than _b_. **/ Y.UA.compareVersions = function (a, b) { var aPart, aParts, bPart, bParts, i, len; if (a === b) { return 0; } aParts = (a + '').split('.'); bParts = (b + '').split('.'); for (i = 0, len = Math.max(aParts.length, bParts.length); i < len; ++i) { aPart = parseInt(aParts[i], 10); bPart = parseInt(bParts[i], 10); /*jshint expr: true*/ isNaN(aPart) && (aPart = 0); isNaN(bPart) && (bPart = 0); if (aPart < bPart) { return -1; } if (aPart > bPart) { return 1; } } return 0; }; YUI.Env.aliases = { "anim": ["anim-base","anim-color","anim-curve","anim-easing","anim-node-plugin","anim-scroll","anim-xy"], "anim-shape-transform": ["anim-shape"], "app": ["app-base","app-content","app-transitions","lazy-model-list","model","model-list","model-sync-rest","router","view","view-node-map"], "attribute": ["attribute-base","attribute-complex"], "attribute-events": ["attribute-observable"], "autocomplete": ["autocomplete-base","autocomplete-sources","autocomplete-list","autocomplete-plugin"], "axes": ["axis-numeric","axis-category","axis-time","axis-stacked"], "axes-base": ["axis-numeric-base","axis-category-base","axis-time-base","axis-stacked-base"], "base": ["base-base","base-pluginhost","base-build"], "cache": ["cache-base","cache-offline","cache-plugin"], "charts": ["charts-base"], "collection": ["array-extras","arraylist","arraylist-add","arraylist-filter","array-invoke"], "color": ["color-base","color-hsl","color-harmony"], "controller": ["router"], "dataschema": ["dataschema-base","dataschema-json","dataschema-xml","dataschema-array","dataschema-text"], "datasource": ["datasource-local","datasource-io","datasource-get","datasource-function","datasource-cache","datasource-jsonschema","datasource-xmlschema","datasource-arrayschema","datasource-textschema","datasource-polling"], "datatable": ["datatable-core","datatable-table","datatable-head","datatable-body","datatable-base","datatable-column-widths","datatable-message","datatable-mutable","datatable-sort","datatable-datasource"], "datatype": ["datatype-date","datatype-number","datatype-xml"], "datatype-date": ["datatype-date-parse","datatype-date-format","datatype-date-math"], "datatype-number": ["datatype-number-parse","datatype-number-format"], "datatype-xml": ["datatype-xml-parse","datatype-xml-format"], "dd": ["dd-ddm-base","dd-ddm","dd-ddm-drop","dd-drag","dd-proxy","dd-constrain","dd-drop","dd-scroll","dd-delegate"], "dom": ["dom-base","dom-screen","dom-style","selector-native","selector"], "editor": ["frame","editor-selection","exec-command","editor-base","editor-para","editor-br","editor-bidi","editor-tab","createlink-base"], "event": ["event-base","event-delegate","event-synthetic","event-mousewheel","event-mouseenter","event-key","event-focus","event-resize","event-hover","event-outside","event-touch","event-move","event-flick","event-valuechange","event-tap"], "event-custom": ["event-custom-base","event-custom-complex"], "event-gestures": ["event-flick","event-move"], "handlebars": ["handlebars-compiler"], "highlight": ["highlight-base","highlight-accentfold"], "history": ["history-base","history-hash","history-hash-ie","history-html5"], "io": ["io-base","io-xdr","io-form","io-upload-iframe","io-queue"], "json": ["json-parse","json-stringify"], "loader": ["loader-base","loader-rollup","loader-yui3"], "node": ["node-base","node-event-delegate","node-pluginhost","node-screen","node-style"], "pluginhost": ["pluginhost-base","pluginhost-config"], "querystring": ["querystring-parse","querystring-stringify"], "recordset": ["recordset-base","recordset-sort","recordset-filter","recordset-indexer"], "resize": ["resize-base","resize-proxy","resize-constrain"], "slider": ["slider-base","slider-value-range","clickable-rail","range-slider"], "template": ["template-base","template-micro"], "text": ["text-accentfold","text-wordbreak"], "widget": ["widget-base","widget-htmlparser","widget-skin","widget-uievents"] }; }, '3.12.0', { "use": [ "yui-base", "get", "features", "intl-base", "yui-log", "yui-later", "loader-base", "loader-rollup", "loader-yui3" ] }); YUI.add('get', function (Y, NAME) { /*jslint boss:true, expr:true, laxbreak: true */ /** Provides dynamic loading of remote JavaScript and CSS resources. @module get @class Get @static **/ var Lang = Y.Lang, CUSTOM_ATTRS, // defined lazily in Y.Get.Transaction._createNode() Get, Transaction; Y.Get = Get = { // -- Public Properties ---------------------------------------------------- /** Default options for CSS requests. Options specified here will override global defaults for CSS requests. See the `options` property for all available options. @property cssOptions @type Object @static @since 3.5.0 **/ cssOptions: { attributes: { rel: 'stylesheet' }, doc : Y.config.linkDoc || Y.config.doc, pollInterval: 50 }, /** Default options for JS requests. Options specified here will override global defaults for JS requests. See the `options` property for all available options. @property jsOptions @type Object @static @since 3.5.0 **/ jsOptions: { autopurge: true, doc : Y.config.scriptDoc || Y.config.doc }, /** Default options to use for all requests. Note that while all available options are documented here for ease of discovery, some options (like callback functions) only make sense at the transaction level. Callback functions specified via the options object or the `options` parameter of the `css()`, `js()`, or `load()` methods will receive the transaction object as a parameter. See `Y.Get.Transaction` for details on the properties and methods available on transactions. @static @since 3.5.0 @property {Object} options @property {Boolean} [options.async=false] Whether or not to load scripts asynchronously, meaning they're requested in parallel and execution order is not guaranteed. Has no effect on CSS, since CSS is always loaded asynchronously. @property {Object} [options.attributes] HTML attribute name/value pairs that should be added to inserted nodes. By default, the `charset` attribute will be set to "utf-8" and nodes will be given an auto-generated `id` attribute, but you can override these with your own values if desired. @property {Boolean} [options.autopurge] Whether or not to automatically purge inserted nodes after the purge threshold is reached. This is `true` by default for JavaScript, but `false` for CSS since purging a CSS node will also remove any styling applied by the referenced file. @property {Object} [options.context] `this` object to use when calling callback functions. Defaults to the transaction object. @property {Mixed} [options.data] Arbitrary data object to pass to "on*" callbacks. @property {Document} [options.doc] Document into which nodes should be inserted. By default, the current document is used. @property {HTMLElement|String} [options.insertBefore] HTML element or id string of an element before which all generated nodes should be inserted. If not specified, Get will automatically determine the best place to insert nodes for maximum compatibility. @property {Function} [options.onEnd] Callback to execute after a transaction is complete, regardless of whether it succeeded or failed. @property {Function} [options.onFailure] Callback to execute after a transaction fails, times out, or is aborted. @property {Function} [options.onProgress] Callback to execute after each individual request in a transaction either succeeds or fails. @property {Function} [options.onSuccess] Callback to execute after a transaction completes successfully with no errors. Note that in browsers that don't support the `error` event on CSS `` nodes, a failed CSS request may still be reported as a success because in these browsers it can be difficult or impossible to distinguish between success and failure for CSS resources. @property {Function} [options.onTimeout] Callback to execute after a transaction times out. @property {Number} [options.pollInterval=50] Polling interval (in milliseconds) for detecting CSS load completion in browsers that don't support the `load` event on `` nodes. This isn't used for JavaScript. @property {Number} [options.purgethreshold=20] Number of nodes to insert before triggering an automatic purge when `autopurge` is `true`. @property {Number} [options.timeout] Number of milliseconds to wait before aborting a transaction. When a timeout occurs, the `onTimeout` callback is called, followed by `onFailure` and finally `onEnd`. By default, there is no timeout. @property {String} [options.type] Resource type ("css" or "js"). This option is set automatically by the `css()` and `js()` functions and will be ignored there, but may be useful when using the `load()` function. If not specified, the type will be inferred from the URL, defaulting to "js" if the URL doesn't contain a recognizable file extension. **/ options: { attributes: { charset: 'utf-8' }, purgethreshold: 20 }, // -- Protected Properties ------------------------------------------------- /** Regex that matches a CSS URL. Used to guess the file type when it's not specified. @property REGEX_CSS @type RegExp @final @protected @static @since 3.5.0 **/ REGEX_CSS: /\.css(?:[?;].*)?$/i, /** Regex that matches a JS URL. Used to guess the file type when it's not specified. @property REGEX_JS @type RegExp @final @protected @static @since 3.5.0 **/ REGEX_JS : /\.js(?:[?;].*)?$/i, /** Contains information about the current environment, such as what script and link injection features it supports. This object is created and populated the first time the `_getEnv()` method is called. @property _env @type Object @protected @static @since 3.5.0 **/ /** Mapping of document _yuid strings to or node references so we don't have to look the node up each time we want to insert a request node. @property _insertCache @type Object @protected @static @since 3.5.0 **/ _insertCache: {}, /** Information about the currently pending transaction, if any. This is actually an object with two properties: `callback`, containing the optional callback passed to `css()`, `load()`, or `js()`; and `transaction`, containing the actual transaction instance. @property _pending @type Object @protected @static @since 3.5.0 **/ _pending: null, /** HTML nodes eligible to be purged next time autopurge is triggered. @property _purgeNodes @type HTMLElement[] @protected @static @since 3.5.0 **/ _purgeNodes: [], /** Queued transactions and associated callbacks. @property _queue @type Object[] @protected @static @since 3.5.0 **/ _queue: [], // -- Public Methods ------------------------------------------------------- /** Aborts the specified transaction. This will cause the transaction's `onFailure` callback to be called and will prevent any new script and link nodes from being added to the document, but any resources that have already been requested will continue loading (there's no safe way to prevent this, unfortunately). *Note:* This method is deprecated as of 3.5.0, and will be removed in a future version of YUI. Use the transaction-level `abort()` method instead. @method abort @param {Get.Transaction} transaction Transaction to abort. @deprecated Use the `abort()` method on the transaction instead. @static **/ abort: function (transaction) { var i, id, item, len, pending; if (!transaction.abort) { id = transaction; pending = this._pending; transaction = null; if (pending && pending.transaction.id === id) { transaction = pending.transaction; this._pending = null; } else { for (i = 0, len = this._queue.length; i < len; ++i) { item = this._queue[i].transaction; if (item.id === id) { transaction = item; this._queue.splice(i, 1); break; } } } } transaction && transaction.abort(); }, /** Loads one or more CSS files. The _urls_ parameter may be provided as a URL string, a request object, or an array of URL strings and/or request objects. A request object is just an object that contains a `url` property and zero or more options that should apply specifically to that request. Request-specific options take priority over transaction-level options and default options. URLs may be relative or absolute, and do not have to have the same origin as the current page. The `options` parameter may be omitted completely and a callback passed in its place, if desired. @example // Load a single CSS file and log a message on completion. Y.Get.css('foo.css', function (err) { if (err) { } else { } }); // Load multiple CSS files and log a message when all have finished // loading. var urls = ['foo.css', 'http://example.com/bar.css', 'baz/quux.css']; Y.Get.css(urls, function (err) { if (err) { } else { } }); // Specify transaction-level options, which will apply to all requests // within the transaction. Y.Get.css(urls, { attributes: {'class': 'my-css'}, timeout : 5000 }); // Specify per-request options, which override transaction-level and // default options. Y.Get.css([ {url: 'foo.css', attributes: {id: 'foo'}}, {url: 'bar.css', attributes: {id: 'bar', charset: 'iso-8859-1'}} ]); @method css @param {String|Object|Array} urls URL string, request object, or array of URLs and/or request objects to load. @param {Object} [options] Options for this transaction. See the `Y.Get.options` property for a complete list of available options. @param {Function} [callback] Callback function to be called on completion. This is a general callback and will be called before any more granular callbacks (`onSuccess`, `onFailure`, etc.) specified in the `options` object. @param {Array|null} callback.err Array of errors that occurred during the transaction, or `null` on success. @param {Get.Transaction} callback.transaction Transaction object. @return {Get.Transaction} Transaction object. @static **/ css: function (urls, options, callback) { return this._load('css', urls, options, callback); }, /** Loads one or more JavaScript resources. The _urls_ parameter may be provided as a URL string, a request object, or an array of URL strings and/or request objects. A request object is just an object that contains a `url` property and zero or more options that should apply specifically to that request. Request-specific options take priority over transaction-level options and default options. URLs may be relative or absolute, and do not have to have the same origin as the current page. The `options` parameter may be omitted completely and a callback passed in its place, if desired. Scripts will be executed in the order they're specified unless the `async` option is `true`, in which case they'll be loaded in parallel and executed in whatever order they finish loading. @example // Load a single JS file and log a message on completion. Y.Get.js('foo.js', function (err) { if (err) { } else { } }); // Load multiple JS files, execute them in order, and log a message when // all have finished loading. var urls = ['foo.js', 'http://example.com/bar.js', 'baz/quux.js']; Y.Get.js(urls, function (err) { if (err) { } else { } }); // Specify transaction-level options, which will apply to all requests // within the transaction. Y.Get.js(urls, { attributes: {'class': 'my-js'}, timeout : 5000 }); // Specify per-request options, which override transaction-level and // default options. Y.Get.js([ {url: 'foo.js', attributes: {id: 'foo'}}, {url: 'bar.js', attributes: {id: 'bar', charset: 'iso-8859-1'}} ]); @method js @param {String|Object|Array} urls URL string, request object, or array of URLs and/or request objects to load. @param {Object} [options] Options for this transaction. See the `Y.Get.options` property for a complete list of available options. @param {Function} [callback] Callback function to be called on completion. This is a general callback and will be called before any more granular callbacks (`onSuccess`, `onFailure`, etc.) specified in the `options` object. @param {Array|null} callback.err Array of errors that occurred during the transaction, or `null` on success. @param {Get.Transaction} callback.transaction Transaction object. @return {Get.Transaction} Transaction object. @since 3.5.0 @static **/ js: function (urls, options, callback) { return this._load('js', urls, options, callback); }, /** Loads one or more CSS and/or JavaScript resources in the same transaction. Use this method when you want to load both CSS and JavaScript in a single transaction and be notified when all requested URLs have finished loading, regardless of type. Behavior and options are the same as for the `css()` and `js()` methods. If a resource type isn't specified in per-request options or transaction-level options, Get will guess the file type based on the URL's extension (`.css` or `.js`, with or without a following query string). If the file type can't be guessed from the URL, a warning will be logged and Get will assume the URL is a JavaScript resource. @example // Load both CSS and JS files in a single transaction, and log a message // when all files have finished loading. Y.Get.load(['foo.css', 'bar.js', 'baz.css'], function (err) { if (err) { } else { } }); @method load @param {String|Object|Array} urls URL string, request object, or array of URLs and/or request objects to load. @param {Object} [options] Options for this transaction. See the `Y.Get.options` property for a complete list of available options. @param {Function} [callback] Callback function to be called on completion. This is a general callback and will be called before any more granular callbacks (`onSuccess`, `onFailure`, etc.) specified in the `options` object. @param {Array|null} err Array of errors that occurred during the transaction, or `null` on success. @param {Get.Transaction} Transaction object. @return {Get.Transaction} Transaction object. @since 3.5.0 @static **/ load: function (urls, options, callback) { return this._load(null, urls, options, callback); }, // -- Protected Methods ---------------------------------------------------- /** Triggers an automatic purge if the purge threshold has been reached. @method _autoPurge @param {Number} threshold Purge threshold to use, in milliseconds. @protected @since 3.5.0 @static **/ _autoPurge: function (threshold) { if (threshold && this._purgeNodes.length >= threshold) { this._purge(this._purgeNodes); } }, /** Populates the `_env` property with information about the current environment. @method _getEnv @return {Object} Environment information. @protected @since 3.5.0 @static **/ _getEnv: function () { var doc = Y.config.doc, ua = Y.UA; // Note: some of these checks require browser sniffs since it's not // feasible to load test files on every pageview just to perform a // feature test. I'm sorry if this makes you sad. return (this._env = { // True if this is a browser that supports disabling async mode on // dynamically created script nodes. See // https://developer.mozilla.org/En/HTML/Element/Script#Attributes // IE10 doesn't return true for the MDN feature test, so setting it explicitly, // because it is async by default, and allows you to disable async by setting it to false async: (doc && doc.createElement('script').async === true) || (ua.ie >= 10), // True if this browser fires an event when a dynamically injected // link node fails to load. This is currently true for Firefox 9+ // and WebKit 535.24+ cssFail: ua.gecko >= 9 || ua.compareVersions(ua.webkit, 535.24) >= 0, // True if this browser fires an event when a dynamically injected // link node finishes loading. This is currently true for IE, Opera, // Firefox 9+, and WebKit 535.24+. Note that IE versions <9 fire the // DOM 0 "onload" event, but not "load". All versions of IE fire // "onload". // davglass: Seems that Chrome on Android needs this to be false. cssLoad: ( (!ua.gecko && !ua.webkit) || ua.gecko >= 9 || ua.compareVersions(ua.webkit, 535.24) >= 0 ) && !(ua.chrome && ua.chrome <= 18), // True if this browser preserves script execution order while // loading scripts in parallel as long as the script node's `async` // attribute is set to false to explicitly disable async execution. preservesScriptOrder: !!(ua.gecko || ua.opera || (ua.ie && ua.ie >= 10)) }); }, _getTransaction: function (urls, options) { var requests = [], i, len, req, url; if (!Lang.isArray(urls)) { urls = [urls]; } options = Y.merge(this.options, options); // Clone the attributes object so we don't end up modifying it by ref. options.attributes = Y.merge(this.options.attributes, options.attributes); for (i = 0, len = urls.length; i < len; ++i) { url = urls[i]; req = {attributes: {}}; // If `url` is a string, we create a URL object for it, then mix in // global options and request-specific options. If it's an object // with a "url" property, we assume it's a request object containing // URL-specific options. if (typeof url === 'string') { req.url = url; } else if (url.url) { // URL-specific options override both global defaults and // request-specific options. Y.mix(req, url, false, null, 0, true); url = url.url; // Make url a string so we can use it later. } else { continue; } Y.mix(req, options, false, null, 0, true); // If we didn't get an explicit type for this URL either in the // request options or the URL-specific options, try to determine // one from the file extension. if (!req.type) { if (this.REGEX_CSS.test(url)) { req.type = 'css'; } else { if (!this.REGEX_JS.test(url)) { } req.type = 'js'; } } // Mix in type-specific default options, but don't overwrite any // options that have already been set. Y.mix(req, req.type === 'js' ? this.jsOptions : this.cssOptions, false, null, 0, true); // Give the node an id attribute if it doesn't already have one. req.attributes.id || (req.attributes.id = Y.guid()); // Backcompat for <3.5.0 behavior. if (req.win) { req.doc = req.win.document; } else { req.win = req.doc.defaultView || req.doc.parentWindow; } if (req.charset) { req.attributes.charset = req.charset; } requests.push(req); } return new Transaction(requests, options); }, _load: function (type, urls, options, callback) { var transaction; // Allow callback as third param. if (typeof options === 'function') { callback = options; options = {}; } options || (options = {}); options.type = type; options._onFinish = Get._onTransactionFinish; if (!this._env) { this._getEnv(); } transaction = this._getTransaction(urls, options); this._queue.push({ callback : callback, transaction: transaction }); this._next(); return transaction; }, _onTransactionFinish : function() { Get._pending = null; Get._next(); }, _next: function () { var item; if (this._pending) { return; } item = this._queue.shift(); if (item) { this._pending = item; item.transaction.execute(item.callback); } }, _purge: function (nodes) { var purgeNodes = this._purgeNodes, isTransaction = nodes !== purgeNodes, index, node; while (node = nodes.pop()) { // assignment // Don't purge nodes that haven't finished loading (or errored out), // since this can hang the transaction. if (!node._yuiget_finished) { continue; } node.parentNode && node.parentNode.removeChild(node); // If this is a transaction-level purge and this node also exists in // the Get-level _purgeNodes array, we need to remove it from // _purgeNodes to avoid creating a memory leak. The indexOf lookup // sucks, but until we get WeakMaps, this is the least troublesome // way to do this (we can't just hold onto node ids because they may // not be in the same document). if (isTransaction) { index = Y.Array.indexOf(purgeNodes, node); if (index > -1) { purgeNodes.splice(index, 1); } } } } }; /** Alias for `js()`. @method script @static **/ Get.script = Get.js; /** Represents a Get transaction, which may contain requests for one or more JS or CSS files. This class should not be instantiated manually. Instances will be created and returned as needed by Y.Get's `css()`, `js()`, and `load()` methods. @class Get.Transaction @constructor @since 3.5.0 **/ Get.Transaction = Transaction = function (requests, options) { var self = this; self.id = Transaction._lastId += 1; self.data = options.data; self.errors = []; self.nodes = []; self.options = options; self.requests = requests; self._callbacks = []; // callbacks to call after execution finishes self._queue = []; self._reqsWaiting = 0; // Deprecated pre-3.5.0 properties. self.tId = self.id; // Use `id` instead. self.win = options.win || Y.config.win; }; /** Arbitrary data object associated with this transaction. This object comes from the options passed to `Get.css()`, `Get.js()`, or `Get.load()`, and will be `undefined` if no data object was specified. @property {Object} data **/ /** Array of errors that have occurred during this transaction, if any. @since 3.5.0 @property {Object[]} errors @property {String} errors.error Error message. @property {Object} errors.request Request object related to the error. **/ /** Numeric id for this transaction, unique among all transactions within the same YUI sandbox in the current pageview. @property {Number} id @since 3.5.0 **/ /** HTMLElement nodes (native ones, not YUI Node instances) that have been inserted during the current transaction. @property {HTMLElement[]} nodes **/ /** Options associated with this transaction. See `Get.options` for the full list of available options. @property {Object} options @since 3.5.0 **/ /** Request objects contained in this transaction. Each request object represents one CSS or JS URL that will be (or has been) requested and loaded into the page. @property {Object} requests @since 3.5.0 **/ /** Id of the most recent transaction. @property _lastId @type Number @protected @static **/ Transaction._lastId = 0; Transaction.prototype = { // -- Public Properties ---------------------------------------------------- /** Current state of this transaction. One of "new", "executing", or "done". @property _state @type String @protected **/ _state: 'new', // "new", "executing", or "done" // -- Public Methods ------------------------------------------------------- /** Aborts this transaction. This will cause the transaction's `onFailure` callback to be called and will prevent any new script and link nodes from being added to the document, but any resources that have already been requested will continue loading (there's no safe way to prevent this, unfortunately). @method abort @param {String} [msg="Aborted."] Optional message to use in the `errors` array describing why the transaction was aborted. **/ abort: function (msg) { this._pending = null; this._pendingCSS = null; this._pollTimer = clearTimeout(this._pollTimer); this._queue = []; this._reqsWaiting = 0; this.errors.push({error: msg || 'Aborted'}); this._finish(); }, /** Begins execting the transaction. There's usually no reason to call this manually, since Get will call it automatically when other pending transactions have finished. If you really want to execute your transaction before Get does, you can, but be aware that this transaction's scripts may end up executing before the scripts in other pending transactions. If the transaction is already executing, the specified callback (if any) will be queued and called after execution finishes. If the transaction has already finished, the callback will be called immediately (the transaction will not be executed again). @method execute @param {Function} callback Callback function to execute after all requests in the transaction are complete, or after the transaction is aborted. **/ execute: function (callback) { var self = this, requests = self.requests, state = self._state, i, len, queue, req; if (state === 'done') { callback && callback(self.errors.length ? self.errors : null, self); return; } else { callback && self._callbacks.push(callback); if (state === 'executing') { return; } } self._state = 'executing'; self._queue = queue = []; if (self.options.timeout) { self._timeout = setTimeout(function () { self.abort('Timeout'); }, self.options.timeout); } self._reqsWaiting = requests.length; for (i = 0, len = requests.length; i < len; ++i) { req = requests[i]; if (req.async || req.type === 'css') { // No need to queue CSS or fully async JS. self._insert(req); } else { queue.push(req); } } self._next(); }, /** Manually purges any `