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/* YUI 3.17.2 (build 9c3c78e) Copyright 2014 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 = '3.17.2', 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); } }, handleReady = function() { YUI.Env.DOMReady = true; if (hasWin) { remove(doc, 'DOMContentLoaded', handleReady); } }, 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-log-nodejs', '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: {}, _exported: {}, _missed: [], _yidx: 0, _uidx: 0, _guidp: 'y', _loaded: {}, // serviced: {}, // Regex in English: // I'll start at the \b(yui). // 1. Look in the test string for "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_yui". 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 "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". // 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( after a word break find either the string // yui(?:-\w+)? "yui" optionally followed by a -, then more characters // ) and store the yui-* string in \2 // \/\2 then comes a / followed by the yui-* string in \2 // (?:-(min|debug))? optionally followed by "-min" or "-debug" // .js and ending in ".js" _BASE_RE: /(?:\?(?:[^&]*&)*([^&]*))?\b(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); } // Y.log(Y.id + ' initialized', 'info', 'yui'); }, /** 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 () { Y.log('Dav was here!'); }; }, '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} [details] Module config. @param {Array} [details.requires] Array of other module names that must be attached before this module can be attached. @param {Array} [details.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} [details.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, modInfo, 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) { modInfo = loader.getModuleInfo(name); if (!modInfo || modInfo.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, exported = Y.Env._exported, len = r.length, loader, def, go, c = [], modArgs, esCompat, reqlen, modInfo, condition, __exports__, __imports__; //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) { modInfo = loader && loader.getModuleInfo(name); if (modInfo) { mod = modInfo; moot = true; } // Y.log('no js def for: ' + name, 'info', 'yui'); //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); } } // Optional dependencies normally work by modifying the // dependency list of a module. If the dependency's test // passes it is added to the list. If not, it's not loaded. // This following check ensures that optional dependencies // are not attached when they were already loaded into the // page (when bundling for example) if (loader && !loader._canBeAttached(name)) { Y.log('Failed to attach module ' + name, 'warn', 'yui'); return true; } /* 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 = []; modInfo = loader.getModuleInfo(name); for (j in modInfo.expanded_map) { if (modInfo.expanded_map.hasOwnProperty(j)) { req.push(j); } } Y._attach(req); } details = mod.details; req = details.requires; esCompat = details.es; 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) { reqlen = req.length; for (j = 0; j < reqlen; 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) { modArgs = [Y, name]; if (esCompat) { __imports__ = {}; __exports__ = {}; // passing `exports` and `imports` onto the module function modArgs.push(__imports__, __exports__); if (req) { reqlen = req.length; for (j = 0; j < reqlen; j++) { __imports__[req[j]] = exported.hasOwnProperty(req[j]) ? exported[req[j]] : Y; } } } if (Y.config.throwFail) { __exports__ = mod.fn.apply(esCompat ? undefined : mod, modArgs); } else { try { __exports__ = mod.fn.apply(esCompat ? undefined : mod, modArgs); } catch (e) { Y.error('Attach error: ' + name, e, name); return false; } } if (esCompat) { // store the `exports` in case others `es` modules requires it exported[name] = __exports__; // If an ES module is conditionally loaded and set // to be used "instead" another module, replace the // trigger module's content with the conditionally // loaded one so the values returned by require() // still makes sense condition = mod.details.condition; if (condition && condition.when === 'instead') { exported[condition.trigger] = __exports__; } } } 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'); } Y.log('Delaying use callback until: ' + until.event, 'info', 'yui'); return function() { Y.log('Use callback fired, waiting on delay', 'info', 'yui'); var args = arguments; Y._use(mod, function() { Y.log('Delayed use wrapper callback after dependencies', 'info', 'yui'); Y.on(until.event, function() { args[1].delayUntil = until.event; Y.log('Delayed use callback done after ' + until.event, 'info', 'yui'); 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.log('already provisioned: ' + args, 'info', 'yui'); } 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; }, /** Sugar for loading both legacy and ES6-based YUI modules. @method require @param {String} [modules*] List of module names to import or a single module name. @param {Function} callback Callback that gets called once all the modules were loaded. Each parameter of the callback is the export value of the corresponding module in the list. If the module is a legacy YUI module, the YUI instance is used instead of the module exports. @example ``` YUI().require(['es6-set'], function (Y, imports) { var Set = imports.Set, set = new Set(); }); ``` **/ require: function () { var args = SLICE.call(arguments), callback; if (typeof args[args.length - 1] === 'function') { callback = args.pop(); // only add the callback if one was provided // YUI().require('foo'); is valid args.push(function (Y) { var i, length = args.length, exported = Y.Env._exported, __imports__ = {}; // Get only the imports requested as arguments for (i = 0; i < length; i++) { if (exported.hasOwnProperty(args[i])) { __imports__[args[i]] = exported[args[i]]; } } // Using `undefined` because: // - Using `Y.config.global` would force the value of `this` to be // the global object even in strict mode // - Using `Y` goes against the goal of moving away from a shared // object and start thinking in terms of imported and exported // objects callback.call(undefined, Y, __imports__); }); } // Do not return the Y object. This makes it hard to follow this // traditional pattern: // var Y = YUI().use(...); // This is a good idea in the light of ES6 modules, to avoid working // in the global scope. // This also leaves the door open for returning a promise, once the // YUI loader is based on the ES6 loader which uses // loader.import(...).then(...) this.use.apply(this, args); }, /** 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() { Y.log('Nested use callback: ' + data, 'info', 'yui'); if (Y._attach(data)) { Y._notify(callback, response, data); } }); } else { if (data) { // Y.log('attaching from loader: ' + data, 'info', 'yui'); 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()); } }; // Y.log(Y.id + ': use called: ' + a + ' :: ' + callback, 'info', 'yui'); // 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.log('Loader was found in meta, but it is not attached. Attaching..', 'info', 'yui'); Y._attach(['loader' + ((!mods.loader) ? '-base' : '')]); } // Y.log('before loader requirements: ' + args, 'info', 'yui'); // use loader to expand dependencies and sort the // requirements if it is available. if (boot && Y.Loader && args.length) { Y.log('Using loader to expand dependencies', 'info', 'yui'); 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; Y.log('Modules missing: ' + missing + ', ' + missing.length, 'info', 'yui'); } // dynamic load if (boot && len && Y.Loader) { // Y.log('Using loader to fetch missing deps: ' + missing, 'info', 'yui'); Y.log('Using Loader', 'info', 'yui'); 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) { Y.log('Waiting for loader', 'info', 'yui'); queue.add(handleBoot); } else { G_ENV._bootstrapping = true; Y.log('Fetching loader: ' + config.base + config.loaderPath, 'info', 'yui'); Y.Get.script(config.base + config.loaderPath, { onEnd: handleBoot }); } } else { Y.log('Attaching available dependencies: ' + args, 'info', 'yui'); 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(doc, 'DOMContentLoaded', handleReady); // 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 { handleReady(); 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 **/ /** If `true`, `Y.log()` messages will be written to the browser's debug console when available and when `useBrowserConsole` is also `true`. @property {Boolean} debug @default true **/ /** Log messages to the browser console if `debug` is `true` and the browser has a supported console. @property {Boolean} useBrowserConsole @default true **/ /** A hash of log sources that should be logged. If specified, only messages from these sources will be logged. Others will be discarded. @property {Object} logInclude @type object **/ /** A hash of log sources that should be not be logged. If specified, all sources will be logged *except* those on this list. @property {Object} logExclude **/ /** When the YUI seed file is dynamically loaded after the `window.onload` event has fired, set this to `true` to tell YUI that it shouldn't wait for `window.onload` to occur. This ensures that components that rely on `window.onload` and the `domready` custom event will work as expected even when YUI is dynamically injected. @property {Boolean} injected @default false **/ /** If `true`, `Y.error()` will generate or re-throw a JavaScript error. Otherwise, errors are merely logged silently. @property {Boolean} throwFail @default true **/ /** Reference to the global object for this execution context. In a browser, this is the current `window` object. In Node.js, this is the Node.js `global` object. @property {Object} global **/ /** The browser window or frame that this YUI instance should operate in. When running in Node.js, this property is `undefined`, since there is no `window` object. Use `global` to get a reference to the global object that will work in both browsers and Node.js. @property {Window} win **/ /** The browser `document` object associated with this YUI instance's `win` object. When running in Node.js, this property is `undefined`, since there is no `document` object. @property {Document} doc **/ /** A list of modules that defines the YUI core (overrides the default list). @property {Array} core @type Array @default ['get', 'features', 'intl-base', 'yui-log', 'yui-later', 'loader-base', 'loader-rollup', 'loader-yui3'] **/ /** A list of languages to use in order of preference. This list is matched against the list of available languages in modules that the YUI instance uses to determine the best possible localization of language sensitive modules. Languages are represented using BCP 47 language tags, such as "en-GB" for English as used in the United Kingdom, or "zh-Hans-CN" for simplified Chinese as used in China. The list may be provided as a comma-separated string or as an array. @property {String|String[]} lang **/ /** Default date format. @property {String} dateFormat @deprecated Use configuration in `DataType.Date.format()` instead. **/ /** Default locale. @property {String} locale @deprecated Use `config.lang` instead. **/ /** Default generic polling interval in milliseconds. @property {Number} pollInterval @default 20 **/ /** The number of dynamic `