src/cm/media/js/lib/yui/yui3-3.15.0/build/loader-base/loader-base-debug.js
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     1 YUI.add('loader-base', function (Y, NAME) {
       
     2 
       
     3 /**
       
     4  * The YUI loader core
       
     5  * @module loader
       
     6  * @submodule loader-base
       
     7  */
       
     8 
       
     9 (function() {
       
    10     var VERSION = Y.version,
       
    11         BUILD = '/build/',
       
    12         ROOT = VERSION + '/',
       
    13         CDN_BASE = Y.Env.base,
       
    14         GALLERY_VERSION = 'gallery-2014.02.20-23-55',
       
    15         TNT = '2in3',
       
    16         TNT_VERSION = '4',
       
    17         YUI2_VERSION = '2.9.0',
       
    18         COMBO_BASE = CDN_BASE + 'combo?',
       
    19         META = {
       
    20             version: VERSION,
       
    21             root: ROOT,
       
    22             base: Y.Env.base,
       
    23             comboBase: COMBO_BASE,
       
    24             skin: {
       
    25                 defaultSkin: 'sam',
       
    26                 base: 'assets/skins/',
       
    27                 path: 'skin.css',
       
    28                 after: [
       
    29                     'cssreset',
       
    30                     'cssfonts',
       
    31                     'cssgrids',
       
    32                     'cssbase',
       
    33                     'cssreset-context',
       
    34                     'cssfonts-context'
       
    35                 ]
       
    36             },
       
    37             groups: {},
       
    38             patterns: {}
       
    39         },
       
    40         groups = META.groups,
       
    41         yui2Update = function(tnt, yui2, config) {
       
    42             var root = TNT + '.' +
       
    43                     (tnt || TNT_VERSION) + '/' +
       
    44                     (yui2 || YUI2_VERSION) + BUILD,
       
    45                 base = (config && config.base) ? config.base : CDN_BASE,
       
    46                 combo = (config && config.comboBase) ? config.comboBase : COMBO_BASE;
       
    47 
       
    48             groups.yui2.base = base + root;
       
    49             groups.yui2.root = root;
       
    50             groups.yui2.comboBase = combo;
       
    51         },
       
    52         galleryUpdate = function(tag, config) {
       
    53             var root = (tag || GALLERY_VERSION) + BUILD,
       
    54                 base = (config && config.base) ? config.base : CDN_BASE,
       
    55                 combo = (config && config.comboBase) ? config.comboBase : COMBO_BASE;
       
    56 
       
    57             groups.gallery.base = base + root;
       
    58             groups.gallery.root = root;
       
    59             groups.gallery.comboBase = combo;
       
    60         };
       
    61 
       
    62 
       
    63     groups[VERSION] = {};
       
    64 
       
    65     groups.gallery = {
       
    66         ext: false,
       
    67         combine: true,
       
    68         comboBase: COMBO_BASE,
       
    69         update: galleryUpdate,
       
    70         patterns: {
       
    71             'gallery-': {},
       
    72             'lang/gallery-': {},
       
    73             'gallerycss-': {
       
    74                 type: 'css'
       
    75             }
       
    76         }
       
    77     };
       
    78 
       
    79     groups.yui2 = {
       
    80         combine: true,
       
    81         ext: false,
       
    82         comboBase: COMBO_BASE,
       
    83         update: yui2Update,
       
    84         patterns: {
       
    85             'yui2-': {
       
    86                 configFn: function(me) {
       
    87                     if (/-skin|reset|fonts|grids|base/.test(me.name)) {
       
    88                         me.type = 'css';
       
    89                         me.path = me.path.replace(/\.js/, '.css');
       
    90                         // this makes skins in builds earlier than
       
    91                         // 2.6.0 work as long as combine is false
       
    92                         me.path = me.path.replace(/\/yui2-skin/,
       
    93                                             '/assets/skins/sam/yui2-skin');
       
    94                     }
       
    95                 }
       
    96             }
       
    97         }
       
    98     };
       
    99 
       
   100     galleryUpdate();
       
   101     yui2Update();
       
   102 
       
   103     if (YUI.Env[VERSION]) {
       
   104         Y.mix(META, YUI.Env[VERSION], false, [
       
   105             'modules',
       
   106             'groups',
       
   107             'skin'
       
   108         ], 0, true);
       
   109     }
       
   110 
       
   111     YUI.Env[VERSION] = META;
       
   112 }());
       
   113 /*jslint forin: true, maxlen: 350 */
       
   114 
       
   115 /**
       
   116  * Loader dynamically loads script and css files.  It includes the dependency
       
   117  * information for the version of the library in use, and will automatically pull in
       
   118  * dependencies for the modules requested. It can also load the
       
   119  * files from the Yahoo! CDN, and it can utilize the combo service provided on
       
   120  * this network to reduce the number of http connections required to download
       
   121  * YUI files.
       
   122  *
       
   123  * @module loader
       
   124  * @main loader
       
   125  * @submodule loader-base
       
   126  */
       
   127 
       
   128 var NOT_FOUND = {},
       
   129     NO_REQUIREMENTS = [],
       
   130     MAX_URL_LENGTH = 1024,
       
   131     GLOBAL_ENV = YUI.Env,
       
   132     GLOBAL_LOADED = GLOBAL_ENV._loaded,
       
   133     CSS = 'css',
       
   134     JS = 'js',
       
   135     INTL = 'intl',
       
   136     DEFAULT_SKIN = 'sam',
       
   137     VERSION = Y.version,
       
   138     ROOT_LANG = '',
       
   139     YObject = Y.Object,
       
   140     oeach = YObject.each,
       
   141     yArray = Y.Array,
       
   142     _queue = GLOBAL_ENV._loaderQueue,
       
   143     META = GLOBAL_ENV[VERSION],
       
   144     SKIN_PREFIX = 'skin-',
       
   145     L = Y.Lang,
       
   146     ON_PAGE = GLOBAL_ENV.mods,
       
   147     modulekey,
       
   148     _path = function(dir, file, type, nomin) {
       
   149         var path = dir + '/' + file;
       
   150         if (!nomin) {
       
   151             path += '-min';
       
   152         }
       
   153         path += '.' + (type || CSS);
       
   154 
       
   155         return path;
       
   156     };
       
   157 
       
   158 
       
   159     if (!YUI.Env._cssLoaded) {
       
   160         YUI.Env._cssLoaded = {};
       
   161     }
       
   162 
       
   163 
       
   164 /**
       
   165  * The component metadata is stored in Y.Env.meta.
       
   166  * Part of the loader module.
       
   167  * @property meta
       
   168  * @for YUI
       
   169  */
       
   170 Y.Env.meta = META;
       
   171 
       
   172 /**
       
   173  * Loader dynamically loads script and css files.  It includes the dependency
       
   174  * info for the version of the library in use, and will automatically pull in
       
   175  * dependencies for the modules requested. It can load the
       
   176  * files from the Yahoo! CDN, and it can utilize the combo service provided on
       
   177  * this network to reduce the number of http connections required to download
       
   178  * YUI files. You can also specify an external, custom combo service to host
       
   179  * your modules as well.
       
   180 
       
   181         var Y = YUI();
       
   182         var loader = new Y.Loader({
       
   183             filter: 'debug',
       
   184             base: '../../',
       
   185             root: 'build/',
       
   186             combine: true,
       
   187             require: ['node', 'dd', 'console']
       
   188         });
       
   189         var out = loader.resolve(true);
       
   190 
       
   191  * @constructor
       
   192  * @class Loader
       
   193  * @param {Object} config an optional set of configuration options.
       
   194  * @param {String} config.base The base dir which to fetch this module from
       
   195  * @param {String} config.comboBase The Combo service base path. Ex: `http://yui.yahooapis.com/combo?`
       
   196  * @param {String} config.root The root path to prepend to module names for the combo service. Ex: `2.5.2/build/`
       
   197  * @param {String|Object} config.filter A filter to apply to result urls. <a href="#property_filter">See filter property</a>
       
   198  * @param {Object} config.filters Per-component filter specification.  If specified for a given component, this overrides the filter config.
       
   199  * @param {Boolean} config.combine Use a combo service to reduce the number of http connections required to load your dependencies
       
   200  * @param {Boolean} [config.async=true] Fetch files in async
       
   201  * @param {Array} config.ignore: A list of modules that should never be dynamically loaded
       
   202  * @param {Array} config.force A list of modules that should always be loaded when required, even if already present on the page
       
   203  * @param {HTMLElement|String} config.insertBefore Node or id for a node that should be used as the insertion point for new nodes
       
   204  * @param {Object} config.jsAttributes Object literal containing attributes to add to script nodes
       
   205  * @param {Object} config.cssAttributes Object literal containing attributes to add to link nodes
       
   206  * @param {Number} config.timeout The number of milliseconds before a timeout occurs when dynamically loading nodes.  If not set, there is no timeout
       
   207  * @param {Object} config.context Execution context for all callbacks
       
   208  * @param {Function} config.onSuccess Callback for the 'success' event
       
   209  * @param {Function} config.onFailure Callback for the 'failure' event
       
   210  * @param {Function} config.onCSS Callback for the 'CSSComplete' event.  When loading YUI components with CSS the CSS is loaded first, then the script.  This provides a moment you can tie into to improve the presentation of the page while the script is loading.
       
   211  * @param {Function} config.onTimeout Callback for the 'timeout' event
       
   212  * @param {Function} config.onProgress Callback executed each time a script or css file is loaded
       
   213  * @param {Object} config.modules A list of module definitions.  See <a href="#method_addModule">Loader.addModule</a> for the supported module metadata
       
   214  * @param {Object} config.groups A list of group definitions.  Each group can contain specific definitions for `base`, `comboBase`, `combine`, and accepts a list of `modules`.
       
   215  * @param {String} config.2in3 The version of the YUI 2 in 3 wrapper to use.  The intrinsic support for YUI 2 modules in YUI 3 relies on versions of the YUI 2 components inside YUI 3 module wrappers.  These wrappers change over time to accomodate the issues that arise from running YUI 2 in a YUI 3 sandbox.
       
   216  * @param {String} config.yui2 When using the 2in3 project, you can select the version of YUI 2 to use.  Valid values are `2.2.2`, `2.3.1`, `2.4.1`, `2.5.2`, `2.6.0`, `2.7.0`, `2.8.0`, `2.8.1` and `2.9.0` [default] -- plus all versions of YUI 2 going forward.
       
   217  */
       
   218 Y.Loader = function(o) {
       
   219 
       
   220     var self = this;
       
   221 
       
   222     //Catch no config passed.
       
   223     o = o || {};
       
   224 
       
   225     modulekey = META.md5;
       
   226 
       
   227     /**
       
   228      * Internal callback to handle multiple internal insert() calls
       
   229      * so that css is inserted prior to js
       
   230      * @property _internalCallback
       
   231      * @private
       
   232      */
       
   233     // self._internalCallback = null;
       
   234 
       
   235     /**
       
   236      * Callback that will be executed when the loader is finished
       
   237      * with an insert
       
   238      * @method onSuccess
       
   239      * @type function
       
   240      */
       
   241     // self.onSuccess = null;
       
   242 
       
   243     /**
       
   244      * Callback that will be executed if there is a failure
       
   245      * @method onFailure
       
   246      * @type function
       
   247      */
       
   248     // self.onFailure = null;
       
   249 
       
   250     /**
       
   251      * Callback for the 'CSSComplete' event.  When loading YUI components
       
   252      * with CSS the CSS is loaded first, then the script.  This provides
       
   253      * a moment you can tie into to improve the presentation of the page
       
   254      * while the script is loading.
       
   255      * @method onCSS
       
   256      * @type function
       
   257      */
       
   258     // self.onCSS = null;
       
   259 
       
   260     /**
       
   261      * Callback executed each time a script or css file is loaded
       
   262      * @method onProgress
       
   263      * @type function
       
   264      */
       
   265     // self.onProgress = null;
       
   266 
       
   267     /**
       
   268      * Callback that will be executed if a timeout occurs
       
   269      * @method onTimeout
       
   270      * @type function
       
   271      */
       
   272     // self.onTimeout = null;
       
   273 
       
   274     /**
       
   275      * The execution context for all callbacks
       
   276      * @property context
       
   277      * @default {YUI} the YUI instance
       
   278      */
       
   279     self.context = Y;
       
   280 
       
   281     /**
       
   282      * Data that is passed to all callbacks
       
   283      * @property data
       
   284      */
       
   285     // self.data = null;
       
   286 
       
   287     /**
       
   288      * Node reference or id where new nodes should be inserted before
       
   289      * @property insertBefore
       
   290      * @type string|HTMLElement
       
   291      */
       
   292     // self.insertBefore = null;
       
   293 
       
   294     /**
       
   295      * The charset attribute for inserted nodes
       
   296      * @property charset
       
   297      * @type string
       
   298      * @deprecated , use cssAttributes or jsAttributes.
       
   299      */
       
   300     // self.charset = null;
       
   301 
       
   302     /**
       
   303      * An object literal containing attributes to add to link nodes
       
   304      * @property cssAttributes
       
   305      * @type object
       
   306      */
       
   307     // self.cssAttributes = null;
       
   308 
       
   309     /**
       
   310      * An object literal containing attributes to add to script nodes
       
   311      * @property jsAttributes
       
   312      * @type object
       
   313      */
       
   314     // self.jsAttributes = null;
       
   315 
       
   316     /**
       
   317      * The base directory.
       
   318      * @property base
       
   319      * @type string
       
   320      * @default http://yui.yahooapis.com/[YUI VERSION]/build/
       
   321      */
       
   322     self.base = Y.Env.meta.base + Y.Env.meta.root;
       
   323 
       
   324     /**
       
   325      * Base path for the combo service
       
   326      * @property comboBase
       
   327      * @type string
       
   328      * @default http://yui.yahooapis.com/combo?
       
   329      */
       
   330     self.comboBase = Y.Env.meta.comboBase;
       
   331 
       
   332     /*
       
   333      * Base path for language packs.
       
   334      */
       
   335     // self.langBase = Y.Env.meta.langBase;
       
   336     // self.lang = "";
       
   337 
       
   338     /**
       
   339      * If configured, the loader will attempt to use the combo
       
   340      * service for YUI resources and configured external resources.
       
   341      * @property combine
       
   342      * @type boolean
       
   343      * @default true if a base dir isn't in the config
       
   344      */
       
   345     self.combine = o.base &&
       
   346         (o.base.indexOf(self.comboBase.substr(0, 20)) > -1);
       
   347 
       
   348     /**
       
   349     * The default seperator to use between files in a combo URL
       
   350     * @property comboSep
       
   351     * @type {String}
       
   352     * @default Ampersand
       
   353     */
       
   354     self.comboSep = '&';
       
   355     /**
       
   356      * Max url length for combo urls.  The default is 1024. This is the URL
       
   357      * limit for the Yahoo! hosted combo servers.  If consuming
       
   358      * a different combo service that has a different URL limit
       
   359      * it is possible to override this default by supplying
       
   360      * the maxURLLength config option.  The config option will
       
   361      * only take effect if lower than the default.
       
   362      *
       
   363      * @property maxURLLength
       
   364      * @type int
       
   365      */
       
   366     self.maxURLLength = MAX_URL_LENGTH;
       
   367 
       
   368     /**
       
   369      * Ignore modules registered on the YUI global
       
   370      * @property ignoreRegistered
       
   371      * @default false
       
   372      */
       
   373     self.ignoreRegistered = o.ignoreRegistered;
       
   374 
       
   375     /**
       
   376      * Root path to prepend to module path for the combo
       
   377      * service
       
   378      * @property root
       
   379      * @type string
       
   380      * @default [YUI VERSION]/build/
       
   381      */
       
   382     self.root = Y.Env.meta.root;
       
   383 
       
   384     /**
       
   385      * Timeout value in milliseconds.  If set, self value will be used by
       
   386      * the get utility.  the timeout event will fire if
       
   387      * a timeout occurs.
       
   388      * @property timeout
       
   389      * @type int
       
   390      */
       
   391     self.timeout = 0;
       
   392 
       
   393     /**
       
   394      * A list of modules that should not be loaded, even if
       
   395      * they turn up in the dependency tree
       
   396      * @property ignore
       
   397      * @type string[]
       
   398      */
       
   399     // self.ignore = null;
       
   400 
       
   401     /**
       
   402      * A list of modules that should always be loaded, even
       
   403      * if they have already been inserted into the page.
       
   404      * @property force
       
   405      * @type string[]
       
   406      */
       
   407     // self.force = null;
       
   408 
       
   409     self.forceMap = {};
       
   410 
       
   411     /**
       
   412      * Should we allow rollups
       
   413      * @property allowRollup
       
   414      * @type boolean
       
   415      * @default false
       
   416      */
       
   417     self.allowRollup = false;
       
   418 
       
   419     /**
       
   420      * A filter to apply to result urls.  This filter will modify the default
       
   421      * path for all modules.  The default path for the YUI library is the
       
   422      * minified version of the files (e.g., event-min.js).  The filter property
       
   423      * can be a predefined filter or a custom filter.  The valid predefined
       
   424      * filters are:
       
   425      * <dl>
       
   426      *  <dt>DEBUG</dt>
       
   427      *  <dd>Selects the debug versions of the library (e.g., event-debug.js).
       
   428      *      This option will automatically include the Logger widget</dd>
       
   429      *  <dt>RAW</dt>
       
   430      *  <dd>Selects the non-minified version of the library (e.g., event.js).
       
   431      *  </dd>
       
   432      * </dl>
       
   433      * You can also define a custom filter, which must be an object literal
       
   434      * containing a search expression and a replace string:
       
   435      *
       
   436      *      myFilter: {
       
   437      *          'searchExp': "-min\\.js",
       
   438      *          'replaceStr': "-debug.js"
       
   439      *      }
       
   440      *
       
   441      * @property filter
       
   442      * @type string| {searchExp: string, replaceStr: string}
       
   443      */
       
   444     // self.filter = null;
       
   445 
       
   446     /**
       
   447      * per-component filter specification.  If specified for a given
       
   448      * component, this overrides the filter config.
       
   449      * @property filters
       
   450      * @type object
       
   451      */
       
   452     self.filters = {};
       
   453 
       
   454     /**
       
   455      * The list of requested modules
       
   456      * @property required
       
   457      * @type {string: boolean}
       
   458      */
       
   459     self.required = {};
       
   460 
       
   461     /**
       
   462      * If a module name is predefined when requested, it is checked againsts
       
   463      * the patterns provided in this property.  If there is a match, the
       
   464      * module is added with the default configuration.
       
   465      *
       
   466      * At the moment only supporting module prefixes, but anticipate
       
   467      * supporting at least regular expressions.
       
   468      * @property patterns
       
   469      * @type Object
       
   470      */
       
   471     // self.patterns = Y.merge(Y.Env.meta.patterns);
       
   472     self.patterns = {};
       
   473 
       
   474     /**
       
   475      * The library metadata
       
   476      * @property moduleInfo
       
   477      */
       
   478     // self.moduleInfo = Y.merge(Y.Env.meta.moduleInfo);
       
   479     self.moduleInfo = {};
       
   480 
       
   481     self.groups = Y.merge(Y.Env.meta.groups);
       
   482 
       
   483     /**
       
   484      * Provides the information used to skin the skinnable components.
       
   485      * The following skin definition would result in 'skin1' and 'skin2'
       
   486      * being loaded for calendar (if calendar was requested), and
       
   487      * 'sam' for all other skinnable components:
       
   488      *
       
   489      *      skin: {
       
   490      *          // The default skin, which is automatically applied if not
       
   491      *          // overriden by a component-specific skin definition.
       
   492      *          // Change this in to apply a different skin globally
       
   493      *          defaultSkin: 'sam',
       
   494      *
       
   495      *          // This is combined with the loader base property to get
       
   496      *          // the default root directory for a skin. ex:
       
   497      *          // http://yui.yahooapis.com/2.3.0/build/assets/skins/sam/
       
   498      *          base: 'assets/skins/',
       
   499      *
       
   500      *          // Any component-specific overrides can be specified here,
       
   501      *          // making it possible to load different skins for different
       
   502      *          // components.  It is possible to load more than one skin
       
   503      *          // for a given component as well.
       
   504      *          overrides: {
       
   505      *              calendar: ['skin1', 'skin2']
       
   506      *          }
       
   507      *      }
       
   508      * @property skin
       
   509      * @type {Object}
       
   510      */
       
   511     self.skin = Y.merge(Y.Env.meta.skin);
       
   512 
       
   513     /*
       
   514      * Map of conditional modules
       
   515      * @since 3.2.0
       
   516      */
       
   517     self.conditions = {};
       
   518 
       
   519     // map of modules with a hash of modules that meet the requirement
       
   520     // self.provides = {};
       
   521 
       
   522     self.config = o;
       
   523     self._internal = true;
       
   524 
       
   525     self._populateCache();
       
   526 
       
   527     /**
       
   528      * Set when beginning to compute the dependency tree.
       
   529      * Composed of what YUI reports to be loaded combined
       
   530      * with what has been loaded by any instance on the page
       
   531      * with the version number specified in the metadata.
       
   532      * @property loaded
       
   533      * @type {string: boolean}
       
   534      */
       
   535     self.loaded = GLOBAL_LOADED[VERSION];
       
   536 
       
   537 
       
   538     /**
       
   539     * Should Loader fetch scripts in `async`, defaults to `true`
       
   540     * @property async
       
   541     */
       
   542 
       
   543     self.async = true;
       
   544 
       
   545     self._inspectPage();
       
   546 
       
   547     self._internal = false;
       
   548 
       
   549     self._config(o);
       
   550 
       
   551     self.forceMap = (self.force) ? Y.Array.hash(self.force) : {};
       
   552 
       
   553     self.testresults = null;
       
   554 
       
   555     if (Y.config.tests) {
       
   556         self.testresults = Y.config.tests;
       
   557     }
       
   558 
       
   559     /**
       
   560      * List of rollup files found in the library metadata
       
   561      * @property rollups
       
   562      */
       
   563     // self.rollups = null;
       
   564 
       
   565     /**
       
   566      * Whether or not to load optional dependencies for
       
   567      * the requested modules
       
   568      * @property loadOptional
       
   569      * @type boolean
       
   570      * @default false
       
   571      */
       
   572     // self.loadOptional = false;
       
   573 
       
   574     /**
       
   575      * All of the derived dependencies in sorted order, which
       
   576      * will be populated when either calculate() or insert()
       
   577      * is called
       
   578      * @property sorted
       
   579      * @type string[]
       
   580      */
       
   581     self.sorted = [];
       
   582 
       
   583     /*
       
   584      * A list of modules to attach to the YUI instance when complete.
       
   585      * If not supplied, the sorted list of dependencies are applied.
       
   586      * @property attaching
       
   587      */
       
   588     // self.attaching = null;
       
   589 
       
   590     /**
       
   591      * Flag to indicate the dependency tree needs to be recomputed
       
   592      * if insert is called again.
       
   593      * @property dirty
       
   594      * @type boolean
       
   595      * @default true
       
   596      */
       
   597     self.dirty = true;
       
   598 
       
   599     /**
       
   600      * List of modules inserted by the utility
       
   601      * @property inserted
       
   602      * @type {string: boolean}
       
   603      */
       
   604     self.inserted = {};
       
   605 
       
   606     /**
       
   607      * List of skipped modules during insert() because the module
       
   608      * was not defined
       
   609      * @property skipped
       
   610      */
       
   611     self.skipped = {};
       
   612 
       
   613     // Y.on('yui:load', self.loadNext, self);
       
   614 
       
   615     self.tested = {};
       
   616 
       
   617     /*
       
   618      * Cached sorted calculate results
       
   619      * @property results
       
   620      * @since 3.2.0
       
   621      */
       
   622     //self.results = {};
       
   623 
       
   624     if (self.ignoreRegistered) {
       
   625         //Clear inpage already processed modules.
       
   626         self._resetModules();
       
   627     }
       
   628 
       
   629 };
       
   630 
       
   631 Y.Loader.prototype = {
       
   632     /**
       
   633     * Checks the cache for modules and conditions, if they do not exist
       
   634     * process the default metadata and populate the local moduleInfo hash.
       
   635     * @method _populateCache
       
   636     * @private
       
   637     */
       
   638     _populateCache: function() {
       
   639         var self = this,
       
   640             defaults = META.modules,
       
   641             cache = GLOBAL_ENV._renderedMods,
       
   642             i;
       
   643 
       
   644         if (cache && !self.ignoreRegistered) {
       
   645             for (i in cache) {
       
   646                 if (cache.hasOwnProperty(i)) {
       
   647                     self.moduleInfo[i] = Y.merge(cache[i]);
       
   648                 }
       
   649             }
       
   650 
       
   651             cache = GLOBAL_ENV._conditions;
       
   652             for (i in cache) {
       
   653                 if (cache.hasOwnProperty(i)) {
       
   654                     self.conditions[i] = Y.merge(cache[i]);
       
   655                 }
       
   656             }
       
   657 
       
   658         } else {
       
   659             for (i in defaults) {
       
   660                 if (defaults.hasOwnProperty(i)) {
       
   661                     self.addModule(defaults[i], i);
       
   662                 }
       
   663             }
       
   664         }
       
   665 
       
   666     },
       
   667     /**
       
   668     * Reset modules in the module cache to a pre-processed state so additional
       
   669     * computations with a different skin or language will work as expected.
       
   670     * @method _resetModules
       
   671     * @private
       
   672     */
       
   673     _resetModules: function() {
       
   674         var self = this, i, o,
       
   675             mod, name, details;
       
   676         for (i in self.moduleInfo) {
       
   677             if (self.moduleInfo.hasOwnProperty(i)) {
       
   678                 mod = self.moduleInfo[i];
       
   679                 name = mod.name;
       
   680                 details  = (YUI.Env.mods[name] ? YUI.Env.mods[name].details : null);
       
   681 
       
   682                 if (details) {
       
   683                     self.moduleInfo[name]._reset = true;
       
   684                     self.moduleInfo[name].requires = details.requires || [];
       
   685                     self.moduleInfo[name].optional = details.optional || [];
       
   686                     self.moduleInfo[name].supersedes = details.supercedes || [];
       
   687                 }
       
   688 
       
   689                 if (mod.defaults) {
       
   690                     for (o in mod.defaults) {
       
   691                         if (mod.defaults.hasOwnProperty(o)) {
       
   692                             if (mod[o]) {
       
   693                                 mod[o] = mod.defaults[o];
       
   694                             }
       
   695                         }
       
   696                     }
       
   697                 }
       
   698                 delete mod.langCache;
       
   699                 delete mod.skinCache;
       
   700                 if (mod.skinnable) {
       
   701                     self._addSkin(self.skin.defaultSkin, mod.name);
       
   702                 }
       
   703             }
       
   704         }
       
   705     },
       
   706     /**
       
   707     Regex that matches a CSS URL. Used to guess the file type when it's not
       
   708     specified.
       
   709 
       
   710     @property REGEX_CSS
       
   711     @type RegExp
       
   712     @final
       
   713     @protected
       
   714     @since 3.5.0
       
   715     **/
       
   716     REGEX_CSS: /\.css(?:[?;].*)?$/i,
       
   717 
       
   718     /**
       
   719     * Default filters for raw and debug
       
   720     * @property FILTER_DEFS
       
   721     * @type Object
       
   722     * @final
       
   723     * @protected
       
   724     */
       
   725     FILTER_DEFS: {
       
   726         RAW: {
       
   727             'searchExp': '-min\\.js',
       
   728             'replaceStr': '.js'
       
   729         },
       
   730         DEBUG: {
       
   731             'searchExp': '-min\\.js',
       
   732             'replaceStr': '-debug.js'
       
   733         },
       
   734         COVERAGE: {
       
   735             'searchExp': '-min\\.js',
       
   736             'replaceStr': '-coverage.js'
       
   737         }
       
   738     },
       
   739     /*
       
   740     * Check the pages meta-data and cache the result.
       
   741     * @method _inspectPage
       
   742     * @private
       
   743     */
       
   744     _inspectPage: function() {
       
   745         var self = this, v, m, req, mr, i;
       
   746 
       
   747         //Inspect the page for CSS only modules and mark them as loaded.
       
   748         for (i in self.moduleInfo) {
       
   749             if (self.moduleInfo.hasOwnProperty(i)) {
       
   750                 v = self.moduleInfo[i];
       
   751                 if (v.type && v.type === CSS) {
       
   752                     if (self.isCSSLoaded(v.name)) {
       
   753                         Y.log('Found CSS module on page: ' + v.name, 'info', 'loader');
       
   754                         self.loaded[i] = true;
       
   755                     }
       
   756                 }
       
   757             }
       
   758         }
       
   759         for (i in ON_PAGE) {
       
   760             if (ON_PAGE.hasOwnProperty(i)) {
       
   761                 v = ON_PAGE[i];
       
   762                 if (v.details) {
       
   763                     m = self.moduleInfo[v.name];
       
   764                     req = v.details.requires;
       
   765                     mr = m && m.requires;
       
   766 
       
   767                    if (m) {
       
   768                        if (!m._inspected && req && mr.length !== req.length) {
       
   769                            // console.log('deleting ' + m.name);
       
   770                            delete m.expanded;
       
   771                        }
       
   772                    } else {
       
   773                        m = self.addModule(v.details, i);
       
   774                    }
       
   775                    m._inspected = true;
       
   776                }
       
   777             }
       
   778         }
       
   779     },
       
   780     /*
       
   781     * returns true if b is not loaded, and is required directly or by means of modules it supersedes.
       
   782     * @private
       
   783     * @method _requires
       
   784     * @param {String} mod1 The first module to compare
       
   785     * @param {String} mod2 The second module to compare
       
   786     */
       
   787    _requires: function(mod1, mod2) {
       
   788 
       
   789         var i, rm, after_map, s,
       
   790             info = this.moduleInfo,
       
   791             m = info[mod1],
       
   792             other = info[mod2];
       
   793 
       
   794         if (!m || !other) {
       
   795             return false;
       
   796         }
       
   797 
       
   798         rm = m.expanded_map;
       
   799         after_map = m.after_map;
       
   800 
       
   801         // check if this module should be sorted after the other
       
   802         // do this first to short circut circular deps
       
   803         if (after_map && (mod2 in after_map)) {
       
   804             return true;
       
   805         }
       
   806 
       
   807         after_map = other.after_map;
       
   808 
       
   809         // and vis-versa
       
   810         if (after_map && (mod1 in after_map)) {
       
   811             return false;
       
   812         }
       
   813 
       
   814         // check if this module requires one the other supersedes
       
   815         s = info[mod2] && info[mod2].supersedes;
       
   816         if (s) {
       
   817             for (i = 0; i < s.length; i++) {
       
   818                 if (this._requires(mod1, s[i])) {
       
   819                     return true;
       
   820                 }
       
   821             }
       
   822         }
       
   823 
       
   824         s = info[mod1] && info[mod1].supersedes;
       
   825         if (s) {
       
   826             for (i = 0; i < s.length; i++) {
       
   827                 if (this._requires(mod2, s[i])) {
       
   828                     return false;
       
   829                 }
       
   830             }
       
   831         }
       
   832 
       
   833         // check if this module requires the other directly
       
   834         // if (r && yArray.indexOf(r, mod2) > -1) {
       
   835         if (rm && (mod2 in rm)) {
       
   836             return true;
       
   837         }
       
   838 
       
   839         // external css files should be sorted below yui css
       
   840         if (m.ext && m.type === CSS && !other.ext && other.type === CSS) {
       
   841             return true;
       
   842         }
       
   843 
       
   844         return false;
       
   845     },
       
   846     /**
       
   847     * Apply a new config to the Loader instance
       
   848     * @method _config
       
   849     * @private
       
   850     * @param {Object} o The new configuration
       
   851     */
       
   852     _config: function(o) {
       
   853         var i, j, val, a, f, group, groupName, self = this,
       
   854             mods = [], mod;
       
   855         // apply config values
       
   856         if (o) {
       
   857             for (i in o) {
       
   858                 if (o.hasOwnProperty(i)) {
       
   859                     val = o[i];
       
   860                     //TODO This should be a case
       
   861                     if (i === 'require') {
       
   862                         self.require(val);
       
   863                     } else if (i === 'skin') {
       
   864                         //If the config.skin is a string, format to the expected object
       
   865                         if (typeof val === 'string') {
       
   866                             self.skin.defaultSkin = o.skin;
       
   867                             val = {
       
   868                                 defaultSkin: val
       
   869                             };
       
   870                         }
       
   871 
       
   872                         Y.mix(self.skin, val, true);
       
   873                     } else if (i === 'groups') {
       
   874                         for (j in val) {
       
   875                             if (val.hasOwnProperty(j)) {
       
   876                                 // Y.log('group: ' + j);
       
   877                                 groupName = j;
       
   878                                 group = val[j];
       
   879                                 self.addGroup(group, groupName);
       
   880                                 if (group.aliases) {
       
   881                                     for (a in group.aliases) {
       
   882                                         if (group.aliases.hasOwnProperty(a)) {
       
   883                                             self.addAlias(group.aliases[a], a);
       
   884                                         }
       
   885                                     }
       
   886                                 }
       
   887                             }
       
   888                         }
       
   889 
       
   890                     } else if (i === 'modules') {
       
   891                         // add a hash of module definitions
       
   892                         for (j in val) {
       
   893                             if (val.hasOwnProperty(j)) {
       
   894                                 self.addModule(val[j], j);
       
   895                             }
       
   896                         }
       
   897                     } else if (i === 'aliases') {
       
   898                         for (j in val) {
       
   899                             if (val.hasOwnProperty(j)) {
       
   900                                 self.addAlias(val[j], j);
       
   901                             }
       
   902                         }
       
   903                     } else if (i === 'gallery') {
       
   904                         if (this.groups.gallery.update) {
       
   905                             this.groups.gallery.update(val, o);
       
   906                         }
       
   907                     } else if (i === 'yui2' || i === '2in3') {
       
   908                         if (this.groups.yui2.update) {
       
   909                             this.groups.yui2.update(o['2in3'], o.yui2, o);
       
   910                         }
       
   911                     } else {
       
   912                         self[i] = val;
       
   913                     }
       
   914                 }
       
   915             }
       
   916         }
       
   917 
       
   918         // fix filter
       
   919         f = self.filter;
       
   920 
       
   921         if (L.isString(f)) {
       
   922             f = f.toUpperCase();
       
   923             self.filterName = f;
       
   924             self.filter = self.FILTER_DEFS[f];
       
   925             if (f === 'DEBUG') {
       
   926                 self.require('yui-log', 'dump');
       
   927             }
       
   928         }
       
   929 
       
   930         if (self.filterName && self.coverage) {
       
   931             if (self.filterName === 'COVERAGE' && L.isArray(self.coverage) && self.coverage.length) {
       
   932                 for (i = 0; i < self.coverage.length; i++) {
       
   933                     mod = self.coverage[i];
       
   934                     if (self.moduleInfo[mod] && self.moduleInfo[mod].use) {
       
   935                         mods = [].concat(mods, self.moduleInfo[mod].use);
       
   936                     } else {
       
   937                         mods.push(mod);
       
   938                     }
       
   939                 }
       
   940                 self.filters = self.filters || {};
       
   941                 Y.Array.each(mods, function(mod) {
       
   942                     self.filters[mod] = self.FILTER_DEFS.COVERAGE;
       
   943                 });
       
   944                 self.filterName = 'RAW';
       
   945                 self.filter = self.FILTER_DEFS[self.filterName];
       
   946             }
       
   947         }
       
   948 
       
   949     },
       
   950 
       
   951     /**
       
   952      * Returns the skin module name for the specified skin name.  If a
       
   953      * module name is supplied, the returned skin module name is
       
   954      * specific to the module passed in.
       
   955      * @method formatSkin
       
   956      * @param {string} skin the name of the skin.
       
   957      * @param {string} mod optional: the name of a module to skin.
       
   958      * @return {string} the full skin module name.
       
   959      */
       
   960     formatSkin: function(skin, mod) {
       
   961         var s = SKIN_PREFIX + skin;
       
   962         if (mod) {
       
   963             s = s + '-' + mod;
       
   964         }
       
   965 
       
   966         return s;
       
   967     },
       
   968 
       
   969     /**
       
   970      * Adds the skin def to the module info
       
   971      * @method _addSkin
       
   972      * @param {string} skin the name of the skin.
       
   973      * @param {string} mod the name of the module.
       
   974      * @param {string} parent parent module if this is a skin of a
       
   975      * submodule or plugin.
       
   976      * @return {string} the module name for the skin.
       
   977      * @private
       
   978      */
       
   979     _addSkin: function(skin, mod, parent) {
       
   980         var mdef, pkg, name, nmod,
       
   981             info = this.moduleInfo,
       
   982             sinf = this.skin,
       
   983             ext = info[mod] && info[mod].ext;
       
   984 
       
   985         // Add a module definition for the module-specific skin css
       
   986         if (mod) {
       
   987             name = this.formatSkin(skin, mod);
       
   988             if (!info[name]) {
       
   989                 mdef = info[mod];
       
   990                 pkg = mdef.pkg || mod;
       
   991                 nmod = {
       
   992                     skin: true,
       
   993                     name: name,
       
   994                     group: mdef.group,
       
   995                     type: 'css',
       
   996                     after: sinf.after,
       
   997                     path: (parent || pkg) + '/' + sinf.base + skin +
       
   998                           '/' + mod + '.css',
       
   999                     ext: ext
       
  1000                 };
       
  1001                 if (mdef.base) {
       
  1002                     nmod.base = mdef.base;
       
  1003                 }
       
  1004                 if (mdef.configFn) {
       
  1005                     nmod.configFn = mdef.configFn;
       
  1006                 }
       
  1007                 this.addModule(nmod, name);
       
  1008 
       
  1009                 Y.log('Adding skin (' + name + '), ' + parent + ', ' + pkg + ', ' + info[name].path, 'info', 'loader');
       
  1010             }
       
  1011         }
       
  1012 
       
  1013         return name;
       
  1014     },
       
  1015     /**
       
  1016     * Adds an alias module to the system
       
  1017     * @method addAlias
       
  1018     * @param {Array} use An array of modules that makes up this alias
       
  1019     * @param {String} name The name of the alias
       
  1020     * @example
       
  1021     *       var loader = new Y.Loader({});
       
  1022     *       loader.addAlias([ 'node', 'yql' ], 'davglass');
       
  1023     *       loader.require(['davglass']);
       
  1024     *       var out = loader.resolve(true);
       
  1025     *
       
  1026     *       //out.js will contain Node and YQL modules
       
  1027     */
       
  1028     addAlias: function(use, name) {
       
  1029         YUI.Env.aliases[name] = use;
       
  1030         this.addModule({
       
  1031             name: name,
       
  1032             use: use
       
  1033         });
       
  1034     },
       
  1035     /**
       
  1036      * Add a new module group
       
  1037      * @method addGroup
       
  1038      * @param {Object} config An object containing the group configuration data
       
  1039      * @param {String} config.name required, the group name
       
  1040      * @param {String} config.base The base directory for this module group
       
  1041      * @param {String} config.root The root path to add to each combo resource path
       
  1042      * @param {Boolean} config.combine Should the request be combined
       
  1043      * @param {String} config.comboBase Combo service base path
       
  1044      * @param {Object} config.modules The group of modules
       
  1045      * @param {String} name the group name.
       
  1046      * @example
       
  1047      *      var loader = new Y.Loader({});
       
  1048      *      loader.addGroup({
       
  1049      *          name: 'davglass',
       
  1050      *          combine: true,
       
  1051      *          comboBase: '/combo?',
       
  1052      *          root: '',
       
  1053      *          modules: {
       
  1054      *              //Module List here
       
  1055      *          }
       
  1056      *      }, 'davglass');
       
  1057      */
       
  1058     addGroup: function(o, name) {
       
  1059         var mods = o.modules,
       
  1060             self = this, i, v;
       
  1061 
       
  1062         name = name || o.name;
       
  1063         o.name = name;
       
  1064         self.groups[name] = o;
       
  1065 
       
  1066         if (o.patterns) {
       
  1067             for (i in o.patterns) {
       
  1068                 if (o.patterns.hasOwnProperty(i)) {
       
  1069                     o.patterns[i].group = name;
       
  1070                     self.patterns[i] = o.patterns[i];
       
  1071                 }
       
  1072             }
       
  1073         }
       
  1074 
       
  1075         if (mods) {
       
  1076             for (i in mods) {
       
  1077                 if (mods.hasOwnProperty(i)) {
       
  1078                     v = mods[i];
       
  1079                     if (typeof v === 'string') {
       
  1080                         v = { name: i, fullpath: v };
       
  1081                     }
       
  1082                     v.group = name;
       
  1083                     self.addModule(v, i);
       
  1084                 }
       
  1085             }
       
  1086         }
       
  1087     },
       
  1088 
       
  1089     /**
       
  1090      * Add a new module to the component metadata.
       
  1091      * @method addModule
       
  1092      * @param {Object} config An object containing the module data.
       
  1093      * @param {String} config.name Required, the component name
       
  1094      * @param {String} config.type Required, the component type (js or css)
       
  1095      * @param {String} config.path Required, the path to the script from `base`
       
  1096      * @param {Array} config.requires Array of modules required by this component
       
  1097      * @param {Array} [config.optional] Array of optional modules for this component
       
  1098      * @param {Array} [config.supersedes] Array of the modules this component replaces
       
  1099      * @param {Array} [config.after] Array of modules the components which, if present, should be sorted above this one
       
  1100      * @param {Object} [config.after_map] Faster alternative to 'after' -- supply a hash instead of an array
       
  1101      * @param {Number} [config.rollup] The number of superseded modules required for automatic rollup
       
  1102      * @param {String} [config.fullpath] If `fullpath` is specified, this is used instead of the configured `base + path`
       
  1103      * @param {Boolean} [config.skinnable] Flag to determine if skin assets should automatically be pulled in
       
  1104      * @param {Object} [config.submodules] Hash of submodules
       
  1105      * @param {String} [config.group] The group the module belongs to -- this is set automatically when it is added as part of a group configuration.
       
  1106      * @param {Array} [config.lang] Array of BCP 47 language tags of languages for which this module has localized resource bundles, e.g., `["en-GB", "zh-Hans-CN"]`
       
  1107      * @param {Object} [config.condition] Specifies that the module should be loaded automatically if a condition is met. This is an object with up to four fields:
       
  1108      * @param {String} [config.condition.trigger] The name of a module that can trigger the auto-load
       
  1109      * @param {Function} [config.condition.test] A function that returns true when the module is to be loaded.
       
  1110      * @param {String} [config.condition.ua] The UA name of <a href="UA.html">Y.UA</a> object that returns true when the module is to be loaded. e.g., `"ie"`, `"nodejs"`.
       
  1111      * @param {String} [config.condition.when] Specifies the load order of the conditional module
       
  1112      *  with regard to the position of the trigger module.
       
  1113      *  This should be one of three values: `before`, `after`, or `instead`.  The default is `after`.
       
  1114      * @param {Object} [config.testresults] A hash of test results from `Y.Features.all()`
       
  1115      * @param {Function} [config.configFn] A function to exectute when configuring this module
       
  1116      * @param {Object} config.configFn.mod The module config, modifying this object will modify it's config. Returning false will delete the module's config.
       
  1117      * @param {String} [name] The module name, required if not in the module data.
       
  1118      * @return {Object} the module definition or null if the object passed in did not provide all required attributes.
       
  1119      */
       
  1120     addModule: function(o, name) {
       
  1121         name = name || o.name;
       
  1122 
       
  1123         if (typeof o === 'string') {
       
  1124             o = { name: name, fullpath: o };
       
  1125         }
       
  1126 
       
  1127 
       
  1128         var subs, i, l, t, sup, s, smod, plugins, plug,
       
  1129             j, langs, packName, supName, flatSup, flatLang, lang, ret,
       
  1130             overrides, skinname, when, g, p,
       
  1131             conditions = this.conditions, trigger;
       
  1132 
       
  1133         //Only merge this data if the temp flag is set
       
  1134         //from an earlier pass from a pattern or else
       
  1135         //an override module (YUI_config) can not be used to
       
  1136         //replace a default module.
       
  1137         if (this.moduleInfo[name] && this.moduleInfo[name].temp) {
       
  1138             //This catches temp modules loaded via a pattern
       
  1139             // The module will be added twice, once from the pattern and
       
  1140             // Once from the actual add call, this ensures that properties
       
  1141             // that were added to the module the first time around (group: gallery)
       
  1142             // are also added the second time around too.
       
  1143             o = Y.merge(this.moduleInfo[name], o);
       
  1144         }
       
  1145 
       
  1146         o.name = name;
       
  1147 
       
  1148         if (!o || !o.name) {
       
  1149             return null;
       
  1150         }
       
  1151 
       
  1152         if (!o.type) {
       
  1153             //Always assume it's javascript unless the CSS pattern is matched.
       
  1154             o.type = JS;
       
  1155             p = o.path || o.fullpath;
       
  1156             if (p && this.REGEX_CSS.test(p)) {
       
  1157                 Y.log('Auto determined module type as CSS', 'warn', 'loader');
       
  1158                 o.type = CSS;
       
  1159             }
       
  1160         }
       
  1161 
       
  1162         if (!o.path && !o.fullpath) {
       
  1163             o.path = _path(name, name, o.type);
       
  1164         }
       
  1165         o.supersedes = o.supersedes || o.use;
       
  1166 
       
  1167         o.ext = ('ext' in o) ? o.ext : (this._internal) ? false : true;
       
  1168 
       
  1169         // Handle submodule logic
       
  1170         subs = o.submodules;
       
  1171 
       
  1172         this.moduleInfo[name] = o;
       
  1173 
       
  1174         o.requires = o.requires || [];
       
  1175 
       
  1176         /*
       
  1177         Only allowing the cascade of requires information, since
       
  1178         optional and supersedes are far more fine grained than
       
  1179         a blanket requires is.
       
  1180         */
       
  1181         if (this.requires) {
       
  1182             for (i = 0; i < this.requires.length; i++) {
       
  1183                 o.requires.push(this.requires[i]);
       
  1184             }
       
  1185         }
       
  1186         if (o.group && this.groups && this.groups[o.group]) {
       
  1187             g = this.groups[o.group];
       
  1188             if (g.requires) {
       
  1189                 for (i = 0; i < g.requires.length; i++) {
       
  1190                     o.requires.push(g.requires[i]);
       
  1191                 }
       
  1192             }
       
  1193         }
       
  1194 
       
  1195 
       
  1196         if (!o.defaults) {
       
  1197             o.defaults = {
       
  1198                 requires: o.requires ? [].concat(o.requires) : null,
       
  1199                 supersedes: o.supersedes ? [].concat(o.supersedes) : null,
       
  1200                 optional: o.optional ? [].concat(o.optional) : null
       
  1201             };
       
  1202         }
       
  1203 
       
  1204         if (o.skinnable && o.ext && o.temp) {
       
  1205             skinname = this._addSkin(this.skin.defaultSkin, name);
       
  1206             o.requires.unshift(skinname);
       
  1207         }
       
  1208 
       
  1209         if (o.requires.length) {
       
  1210             o.requires = this.filterRequires(o.requires) || [];
       
  1211         }
       
  1212 
       
  1213         if (!o.langPack && o.lang) {
       
  1214             langs = yArray(o.lang);
       
  1215             for (j = 0; j < langs.length; j++) {
       
  1216                 lang = langs[j];
       
  1217                 packName = this.getLangPackName(lang, name);
       
  1218                 smod = this.moduleInfo[packName];
       
  1219                 if (!smod) {
       
  1220                     smod = this._addLangPack(lang, o, packName);
       
  1221                 }
       
  1222             }
       
  1223         }
       
  1224 
       
  1225 
       
  1226         if (subs) {
       
  1227             sup = o.supersedes || [];
       
  1228             l = 0;
       
  1229 
       
  1230             for (i in subs) {
       
  1231                 if (subs.hasOwnProperty(i)) {
       
  1232                     s = subs[i];
       
  1233 
       
  1234                     s.path = s.path || _path(name, i, o.type);
       
  1235                     s.pkg = name;
       
  1236                     s.group = o.group;
       
  1237 
       
  1238                     if (s.supersedes) {
       
  1239                         sup = sup.concat(s.supersedes);
       
  1240                     }
       
  1241 
       
  1242                     smod = this.addModule(s, i);
       
  1243                     sup.push(i);
       
  1244 
       
  1245                     if (smod.skinnable) {
       
  1246                         o.skinnable = true;
       
  1247                         overrides = this.skin.overrides;
       
  1248                         if (overrides && overrides[i]) {
       
  1249                             for (j = 0; j < overrides[i].length; j++) {
       
  1250                                 skinname = this._addSkin(overrides[i][j],
       
  1251                                          i, name);
       
  1252                                 sup.push(skinname);
       
  1253                             }
       
  1254                         }
       
  1255                         skinname = this._addSkin(this.skin.defaultSkin,
       
  1256                                         i, name);
       
  1257                         sup.push(skinname);
       
  1258                     }
       
  1259 
       
  1260                     // looks like we are expected to work out the metadata
       
  1261                     // for the parent module language packs from what is
       
  1262                     // specified in the child modules.
       
  1263                     if (s.lang && s.lang.length) {
       
  1264 
       
  1265                         langs = yArray(s.lang);
       
  1266                         for (j = 0; j < langs.length; j++) {
       
  1267                             lang = langs[j];
       
  1268                             packName = this.getLangPackName(lang, name);
       
  1269                             supName = this.getLangPackName(lang, i);
       
  1270                             smod = this.moduleInfo[packName];
       
  1271 
       
  1272                             if (!smod) {
       
  1273                                 smod = this._addLangPack(lang, o, packName);
       
  1274                             }
       
  1275 
       
  1276                             flatSup = flatSup || yArray.hash(smod.supersedes);
       
  1277 
       
  1278                             if (!(supName in flatSup)) {
       
  1279                                 smod.supersedes.push(supName);
       
  1280                             }
       
  1281 
       
  1282                             o.lang = o.lang || [];
       
  1283 
       
  1284                             flatLang = flatLang || yArray.hash(o.lang);
       
  1285 
       
  1286                             if (!(lang in flatLang)) {
       
  1287                                 o.lang.push(lang);
       
  1288                             }
       
  1289 
       
  1290 // Y.log('pack ' + packName + ' should supersede ' + supName);
       
  1291 // Add rollup file, need to add to supersedes list too
       
  1292 
       
  1293                             // default packages
       
  1294                             packName = this.getLangPackName(ROOT_LANG, name);
       
  1295                             supName = this.getLangPackName(ROOT_LANG, i);
       
  1296 
       
  1297                             smod = this.moduleInfo[packName];
       
  1298 
       
  1299                             if (!smod) {
       
  1300                                 smod = this._addLangPack(lang, o, packName);
       
  1301                             }
       
  1302 
       
  1303                             if (!(supName in flatSup)) {
       
  1304                                 smod.supersedes.push(supName);
       
  1305                             }
       
  1306 
       
  1307 // Y.log('pack ' + packName + ' should supersede ' + supName);
       
  1308 // Add rollup file, need to add to supersedes list too
       
  1309 
       
  1310                         }
       
  1311                     }
       
  1312 
       
  1313                     l++;
       
  1314                 }
       
  1315             }
       
  1316             //o.supersedes = YObject.keys(yArray.hash(sup));
       
  1317             o.supersedes = yArray.dedupe(sup);
       
  1318             if (this.allowRollup) {
       
  1319                 o.rollup = (l < 4) ? l : Math.min(l - 1, 4);
       
  1320             }
       
  1321         }
       
  1322 
       
  1323         plugins = o.plugins;
       
  1324         if (plugins) {
       
  1325             for (i in plugins) {
       
  1326                 if (plugins.hasOwnProperty(i)) {
       
  1327                     plug = plugins[i];
       
  1328                     plug.pkg = name;
       
  1329                     plug.path = plug.path || _path(name, i, o.type);
       
  1330                     plug.requires = plug.requires || [];
       
  1331                     plug.group = o.group;
       
  1332                     this.addModule(plug, i);
       
  1333                     if (o.skinnable) {
       
  1334                         this._addSkin(this.skin.defaultSkin, i, name);
       
  1335                     }
       
  1336 
       
  1337                 }
       
  1338             }
       
  1339         }
       
  1340 
       
  1341         if (o.condition) {
       
  1342             t = o.condition.trigger;
       
  1343             if (YUI.Env.aliases[t]) {
       
  1344                 t = YUI.Env.aliases[t];
       
  1345             }
       
  1346             if (!Y.Lang.isArray(t)) {
       
  1347                 t = [t];
       
  1348             }
       
  1349 
       
  1350             for (i = 0; i < t.length; i++) {
       
  1351                 trigger = t[i];
       
  1352                 when = o.condition.when;
       
  1353                 conditions[trigger] = conditions[trigger] || {};
       
  1354                 conditions[trigger][name] = o.condition;
       
  1355                 // the 'when' attribute can be 'before', 'after', or 'instead'
       
  1356                 // the default is after.
       
  1357                 if (when && when !== 'after') {
       
  1358                     if (when === 'instead') { // replace the trigger
       
  1359                         o.supersedes = o.supersedes || [];
       
  1360                         o.supersedes.push(trigger);
       
  1361                     }
       
  1362                     // before the trigger
       
  1363                         // the trigger requires the conditional mod,
       
  1364                         // so it should appear before the conditional
       
  1365                         // mod if we do not intersede.
       
  1366                 } else { // after the trigger
       
  1367                     o.after = o.after || [];
       
  1368                     o.after.push(trigger);
       
  1369                 }
       
  1370             }
       
  1371         }
       
  1372 
       
  1373         if (o.supersedes) {
       
  1374             o.supersedes = this.filterRequires(o.supersedes);
       
  1375         }
       
  1376 
       
  1377         if (o.after) {
       
  1378             o.after = this.filterRequires(o.after);
       
  1379             o.after_map = yArray.hash(o.after);
       
  1380         }
       
  1381 
       
  1382         // this.dirty = true;
       
  1383 
       
  1384         if (o.configFn) {
       
  1385             ret = o.configFn(o);
       
  1386             if (ret === false) {
       
  1387                 Y.log('Config function returned false for ' + name + ', skipping.', 'info', 'loader');
       
  1388                 delete this.moduleInfo[name];
       
  1389                 delete GLOBAL_ENV._renderedMods[name];
       
  1390                 o = null;
       
  1391             }
       
  1392         }
       
  1393         //Add to global cache
       
  1394         if (o) {
       
  1395             if (!GLOBAL_ENV._renderedMods) {
       
  1396                 GLOBAL_ENV._renderedMods = {};
       
  1397             }
       
  1398             GLOBAL_ENV._renderedMods[name] = Y.mix(GLOBAL_ENV._renderedMods[name] || {}, o);
       
  1399             GLOBAL_ENV._conditions = conditions;
       
  1400         }
       
  1401 
       
  1402         return o;
       
  1403     },
       
  1404 
       
  1405     /**
       
  1406      * Add a requirement for one or more module
       
  1407      * @method require
       
  1408      * @param {string[] | string*} what the modules to load.
       
  1409      */
       
  1410     require: function(what) {
       
  1411         var a = (typeof what === 'string') ? yArray(arguments) : what;
       
  1412         this.dirty = true;
       
  1413         this.required = Y.merge(this.required, yArray.hash(this.filterRequires(a)));
       
  1414 
       
  1415         this._explodeRollups();
       
  1416     },
       
  1417     /**
       
  1418     * Grab all the items that were asked for, check to see if the Loader
       
  1419     * meta-data contains a "use" array. If it doesm remove the asked item and replace it with
       
  1420     * the content of the "use".
       
  1421     * This will make asking for: "dd"
       
  1422     * Actually ask for: "dd-ddm-base,dd-ddm,dd-ddm-drop,dd-drag,dd-proxy,dd-constrain,dd-drop,dd-scroll,dd-drop-plugin"
       
  1423     * @private
       
  1424     * @method _explodeRollups
       
  1425     */
       
  1426     _explodeRollups: function() {
       
  1427         var self = this, m, m2, i, a, v, len, len2,
       
  1428         r = self.required;
       
  1429 
       
  1430         if (!self.allowRollup) {
       
  1431             for (i in r) {
       
  1432                 if (r.hasOwnProperty(i)) {
       
  1433                     m = self.getModule(i);
       
  1434                     if (m && m.use) {
       
  1435                         len = m.use.length;
       
  1436                         for (a = 0; a < len; a++) {
       
  1437                             m2 = self.getModule(m.use[a]);
       
  1438                             if (m2 && m2.use) {
       
  1439                                 len2 = m2.use.length;
       
  1440                                 for (v = 0; v < len2; v++) {
       
  1441                                     r[m2.use[v]] = true;
       
  1442                                 }
       
  1443                             } else {
       
  1444                                 r[m.use[a]] = true;
       
  1445                             }
       
  1446                         }
       
  1447                     }
       
  1448                 }
       
  1449             }
       
  1450             self.required = r;
       
  1451         }
       
  1452 
       
  1453     },
       
  1454     /**
       
  1455     * Explodes the required array to remove aliases and replace them with real modules
       
  1456     * @method filterRequires
       
  1457     * @param {Array} r The original requires array
       
  1458     * @return {Array} The new array of exploded requirements
       
  1459     */
       
  1460     filterRequires: function(r) {
       
  1461         if (r) {
       
  1462             if (!Y.Lang.isArray(r)) {
       
  1463                 r = [r];
       
  1464             }
       
  1465             r = Y.Array(r);
       
  1466             var c = [], i, mod, o, m;
       
  1467 
       
  1468             for (i = 0; i < r.length; i++) {
       
  1469                 mod = this.getModule(r[i]);
       
  1470                 if (mod && mod.use) {
       
  1471                     for (o = 0; o < mod.use.length; o++) {
       
  1472                         //Must walk the other modules in case a module is a rollup of rollups (datatype)
       
  1473                         m = this.getModule(mod.use[o]);
       
  1474                         if (m && m.use && (m.name !== mod.name)) {
       
  1475                             c = Y.Array.dedupe([].concat(c, this.filterRequires(m.use)));
       
  1476                         } else {
       
  1477                             c.push(mod.use[o]);
       
  1478                         }
       
  1479                     }
       
  1480                 } else {
       
  1481                     c.push(r[i]);
       
  1482                 }
       
  1483             }
       
  1484             r = c;
       
  1485         }
       
  1486         return r;
       
  1487     },
       
  1488     /**
       
  1489      * Returns an object containing properties for all modules required
       
  1490      * in order to load the requested module
       
  1491      * @method getRequires
       
  1492      * @param {object}  mod The module definition from moduleInfo.
       
  1493      * @return {array} the expanded requirement list.
       
  1494      */
       
  1495     getRequires: function(mod) {
       
  1496 
       
  1497         if (!mod) {
       
  1498             //console.log('returning no reqs for ' + mod.name);
       
  1499             return NO_REQUIREMENTS;
       
  1500         }
       
  1501 
       
  1502         if (mod._parsed) {
       
  1503             //console.log('returning requires for ' + mod.name, mod.requires);
       
  1504             return mod.expanded || NO_REQUIREMENTS;
       
  1505         }
       
  1506 
       
  1507         //TODO add modue cache here out of scope..
       
  1508 
       
  1509         var i, m, j, add, packName, lang, testresults = this.testresults,
       
  1510             name = mod.name, cond,
       
  1511             adddef = ON_PAGE[name] && ON_PAGE[name].details,
       
  1512             d, go, def,
       
  1513             r, old_mod,
       
  1514             o, skinmod, skindef, skinpar, skinname,
       
  1515             intl = mod.lang || mod.intl,
       
  1516             info = this.moduleInfo,
       
  1517             ftests = Y.Features && Y.Features.tests.load,
       
  1518             hash, reparse;
       
  1519 
       
  1520         // console.log(name);
       
  1521 
       
  1522         // pattern match leaves module stub that needs to be filled out
       
  1523         if (mod.temp && adddef) {
       
  1524             old_mod = mod;
       
  1525             mod = this.addModule(adddef, name);
       
  1526             mod.group = old_mod.group;
       
  1527             mod.pkg = old_mod.pkg;
       
  1528             delete mod.expanded;
       
  1529         }
       
  1530 
       
  1531         // console.log('cache: ' + mod.langCache + ' == ' + this.lang);
       
  1532 
       
  1533         //If a skin or a lang is different, reparse..
       
  1534         reparse = !((!this.lang || mod.langCache === this.lang) && (mod.skinCache === this.skin.defaultSkin));
       
  1535 
       
  1536         if (mod.expanded && !reparse) {
       
  1537             //Y.log('Already expanded ' + name + ', ' + mod.expanded);
       
  1538             return mod.expanded;
       
  1539         }
       
  1540 
       
  1541 
       
  1542         d = [];
       
  1543         hash = {};
       
  1544         r = this.filterRequires(mod.requires);
       
  1545         if (mod.lang) {
       
  1546             //If a module has a lang attribute, auto add the intl requirement.
       
  1547             d.unshift('intl');
       
  1548             r.unshift('intl');
       
  1549             intl = true;
       
  1550         }
       
  1551         o = this.filterRequires(mod.optional);
       
  1552 
       
  1553         // Y.log("getRequires: " + name + " (dirty:" + this.dirty +
       
  1554         // ", expanded:" + mod.expanded + ")");
       
  1555 
       
  1556         mod._parsed = true;
       
  1557         mod.langCache = this.lang;
       
  1558         mod.skinCache = this.skin.defaultSkin;
       
  1559 
       
  1560         for (i = 0; i < r.length; i++) {
       
  1561             //Y.log(name + ' requiring ' + r[i], 'info', 'loader');
       
  1562             if (!hash[r[i]]) {
       
  1563                 d.push(r[i]);
       
  1564                 hash[r[i]] = true;
       
  1565                 m = this.getModule(r[i]);
       
  1566                 if (m) {
       
  1567                     add = this.getRequires(m);
       
  1568                     intl = intl || (m.expanded_map &&
       
  1569                         (INTL in m.expanded_map));
       
  1570                     for (j = 0; j < add.length; j++) {
       
  1571                         d.push(add[j]);
       
  1572                     }
       
  1573                 }
       
  1574             }
       
  1575         }
       
  1576 
       
  1577         // get the requirements from superseded modules, if any
       
  1578         r = this.filterRequires(mod.supersedes);
       
  1579         if (r) {
       
  1580             for (i = 0; i < r.length; i++) {
       
  1581                 if (!hash[r[i]]) {
       
  1582                     // if this module has submodules, the requirements list is
       
  1583                     // expanded to include the submodules.  This is so we can
       
  1584                     // prevent dups when a submodule is already loaded and the
       
  1585                     // parent is requested.
       
  1586                     if (mod.submodules) {
       
  1587                         d.push(r[i]);
       
  1588                     }
       
  1589 
       
  1590                     hash[r[i]] = true;
       
  1591                     m = this.getModule(r[i]);
       
  1592 
       
  1593                     if (m) {
       
  1594                         add = this.getRequires(m);
       
  1595                         intl = intl || (m.expanded_map &&
       
  1596                             (INTL in m.expanded_map));
       
  1597                         for (j = 0; j < add.length; j++) {
       
  1598                             d.push(add[j]);
       
  1599                         }
       
  1600                     }
       
  1601                 }
       
  1602             }
       
  1603         }
       
  1604 
       
  1605         if (o && this.loadOptional) {
       
  1606             for (i = 0; i < o.length; i++) {
       
  1607                 if (!hash[o[i]]) {
       
  1608                     d.push(o[i]);
       
  1609                     hash[o[i]] = true;
       
  1610                     m = info[o[i]];
       
  1611                     if (m) {
       
  1612                         add = this.getRequires(m);
       
  1613                         intl = intl || (m.expanded_map &&
       
  1614                             (INTL in m.expanded_map));
       
  1615                         for (j = 0; j < add.length; j++) {
       
  1616                             d.push(add[j]);
       
  1617                         }
       
  1618                     }
       
  1619                 }
       
  1620             }
       
  1621         }
       
  1622 
       
  1623         cond = this.conditions[name];
       
  1624 
       
  1625         if (cond) {
       
  1626             //Set the module to not parsed since we have conditionals and this could change the dependency tree.
       
  1627             mod._parsed = false;
       
  1628             if (testresults && ftests) {
       
  1629                 oeach(testresults, function(result, id) {
       
  1630                     var condmod = ftests[id].name;
       
  1631                     if (!hash[condmod] && ftests[id].trigger === name) {
       
  1632                         if (result && ftests[id]) {
       
  1633                             hash[condmod] = true;
       
  1634                             d.push(condmod);
       
  1635                         }
       
  1636                     }
       
  1637                 });
       
  1638             } else {
       
  1639                 for (i in cond) {
       
  1640                     if (cond.hasOwnProperty(i)) {
       
  1641                         if (!hash[i]) {
       
  1642                             def = cond[i];
       
  1643                             //first see if they've specfied a ua check
       
  1644                             //then see if they've got a test fn & if it returns true
       
  1645                             //otherwise just having a condition block is enough
       
  1646                             go = def && ((!def.ua && !def.test) || (def.ua && Y.UA[def.ua]) ||
       
  1647                                         (def.test && def.test(Y, r)));
       
  1648 
       
  1649                             if (go) {
       
  1650                                 hash[i] = true;
       
  1651                                 d.push(i);
       
  1652                                 m = this.getModule(i);
       
  1653                                 if (m) {
       
  1654                                     add = this.getRequires(m);
       
  1655                                     for (j = 0; j < add.length; j++) {
       
  1656                                         d.push(add[j]);
       
  1657                                     }
       
  1658 
       
  1659                                 }
       
  1660                             }
       
  1661                         }
       
  1662                     }
       
  1663                 }
       
  1664             }
       
  1665         }
       
  1666 
       
  1667         // Create skin modules
       
  1668         if (mod.skinnable) {
       
  1669             skindef = this.skin.overrides;
       
  1670             for (i in YUI.Env.aliases) {
       
  1671                 if (YUI.Env.aliases.hasOwnProperty(i)) {
       
  1672                     if (Y.Array.indexOf(YUI.Env.aliases[i], name) > -1) {
       
  1673                         skinpar = i;
       
  1674                     }
       
  1675                 }
       
  1676             }
       
  1677             if (skindef && (skindef[name] || (skinpar && skindef[skinpar]))) {
       
  1678                 skinname = name;
       
  1679                 if (skindef[skinpar]) {
       
  1680                     skinname = skinpar;
       
  1681                 }
       
  1682                 for (i = 0; i < skindef[skinname].length; i++) {
       
  1683                     skinmod = this._addSkin(skindef[skinname][i], name);
       
  1684                     if (!this.isCSSLoaded(skinmod, this._boot)) {
       
  1685                         d.push(skinmod);
       
  1686                     }
       
  1687                 }
       
  1688             } else {
       
  1689                 skinmod = this._addSkin(this.skin.defaultSkin, name);
       
  1690                 if (!this.isCSSLoaded(skinmod, this._boot)) {
       
  1691                     d.push(skinmod);
       
  1692                 }
       
  1693             }
       
  1694         }
       
  1695 
       
  1696         mod._parsed = false;
       
  1697 
       
  1698         if (intl) {
       
  1699 
       
  1700             if (mod.lang && !mod.langPack && Y.Intl) {
       
  1701                 lang = Y.Intl.lookupBestLang(this.lang || ROOT_LANG, mod.lang);
       
  1702                 //Y.log('Best lang: ' + lang + ', this.lang: ' + this.lang + ', mod.lang: ' + mod.lang);
       
  1703                 packName = this.getLangPackName(lang, name);
       
  1704                 if (packName) {
       
  1705                     d.unshift(packName);
       
  1706                 }
       
  1707             }
       
  1708             d.unshift(INTL);
       
  1709         }
       
  1710 
       
  1711         mod.expanded_map = yArray.hash(d);
       
  1712 
       
  1713         mod.expanded = YObject.keys(mod.expanded_map);
       
  1714 
       
  1715         return mod.expanded;
       
  1716     },
       
  1717     /**
       
  1718     * Check to see if named css module is already loaded on the page
       
  1719     * @method isCSSLoaded
       
  1720     * @param {String} name The name of the css file
       
  1721     * @return Boolean
       
  1722     */
       
  1723     isCSSLoaded: function(name, skip) {
       
  1724         //TODO - Make this call a batching call with name being an array
       
  1725         if (!name || !YUI.Env.cssStampEl || (!skip && this.ignoreRegistered)) {
       
  1726             Y.log('isCSSLoaded was skipped for ' + name, 'warn', 'loader');
       
  1727             return false;
       
  1728         }
       
  1729         var el = YUI.Env.cssStampEl,
       
  1730             ret = false,
       
  1731             mod = YUI.Env._cssLoaded[name],
       
  1732             style = el.currentStyle; //IE
       
  1733 
       
  1734 
       
  1735         if (mod !== undefined) {
       
  1736             //Y.log('isCSSLoaded was cached for ' + name, 'warn', 'loader');
       
  1737             return mod;
       
  1738         }
       
  1739 
       
  1740         //Add the classname to the element
       
  1741         el.className = name;
       
  1742 
       
  1743         if (!style) {
       
  1744             style = Y.config.doc.defaultView.getComputedStyle(el, null);
       
  1745         }
       
  1746 
       
  1747         if (style && style.display === 'none') {
       
  1748             ret = true;
       
  1749         }
       
  1750 
       
  1751         Y.log('Has Skin? ' + name + ' : ' + ret, 'info', 'loader');
       
  1752 
       
  1753         el.className = ''; //Reset the classname to ''
       
  1754 
       
  1755         YUI.Env._cssLoaded[name] = ret;
       
  1756 
       
  1757         return ret;
       
  1758     },
       
  1759 
       
  1760     /**
       
  1761      * Returns a hash of module names the supplied module satisfies.
       
  1762      * @method getProvides
       
  1763      * @param {string} name The name of the module.
       
  1764      * @return {object} what this module provides.
       
  1765      */
       
  1766     getProvides: function(name) {
       
  1767         var m = this.getModule(name), o, s;
       
  1768             // supmap = this.provides;
       
  1769 
       
  1770         if (!m) {
       
  1771             return NOT_FOUND;
       
  1772         }
       
  1773 
       
  1774         if (m && !m.provides) {
       
  1775             o = {};
       
  1776             s = m.supersedes;
       
  1777 
       
  1778             if (s) {
       
  1779                 yArray.each(s, function(v) {
       
  1780                     Y.mix(o, this.getProvides(v));
       
  1781                 }, this);
       
  1782             }
       
  1783 
       
  1784             o[name] = true;
       
  1785             m.provides = o;
       
  1786 
       
  1787         }
       
  1788 
       
  1789         return m.provides;
       
  1790     },
       
  1791 
       
  1792     /**
       
  1793      * Calculates the dependency tree, the result is stored in the sorted
       
  1794      * property.
       
  1795      * @method calculate
       
  1796      * @param {object} o optional options object.
       
  1797      * @param {string} type optional argument to prune modules.
       
  1798      */
       
  1799     calculate: function(o, type) {
       
  1800         if (o || type || this.dirty) {
       
  1801 
       
  1802             if (o) {
       
  1803                 this._config(o);
       
  1804             }
       
  1805 
       
  1806             if (!this._init) {
       
  1807                 this._setup();
       
  1808             }
       
  1809 
       
  1810             this._explode();
       
  1811 
       
  1812             if (this.allowRollup) {
       
  1813                 this._rollup();
       
  1814             } else {
       
  1815                 this._explodeRollups();
       
  1816             }
       
  1817             this._reduce();
       
  1818             this._sort();
       
  1819         }
       
  1820     },
       
  1821     /**
       
  1822     * Creates a "psuedo" package for languages provided in the lang array
       
  1823     * @method _addLangPack
       
  1824     * @private
       
  1825     * @param {String} lang The language to create
       
  1826     * @param {Object} m The module definition to create the language pack around
       
  1827     * @param {String} packName The name of the package (e.g: lang/datatype-date-en-US)
       
  1828     * @return {Object} The module definition
       
  1829     */
       
  1830     _addLangPack: function(lang, m, packName) {
       
  1831         var name = m.name,
       
  1832             packPath, conf,
       
  1833             existing = this.moduleInfo[packName];
       
  1834 
       
  1835         if (!existing) {
       
  1836 
       
  1837             packPath = _path((m.pkg || name), packName, JS, true);
       
  1838 
       
  1839             conf = {
       
  1840                 path: packPath,
       
  1841                 intl: true,
       
  1842                 langPack: true,
       
  1843                 ext: m.ext,
       
  1844                 group: m.group,
       
  1845                 supersedes: []
       
  1846             };
       
  1847             if (m.root) {
       
  1848                 conf.root = m.root;
       
  1849             }
       
  1850             if (m.base) {
       
  1851                 conf.base = m.base;
       
  1852             }
       
  1853 
       
  1854             if (m.configFn) {
       
  1855                 conf.configFn = m.configFn;
       
  1856             }
       
  1857 
       
  1858             this.addModule(conf, packName);
       
  1859 
       
  1860             if (lang) {
       
  1861                 Y.Env.lang = Y.Env.lang || {};
       
  1862                 Y.Env.lang[lang] = Y.Env.lang[lang] || {};
       
  1863                 Y.Env.lang[lang][name] = true;
       
  1864             }
       
  1865         }
       
  1866 
       
  1867         return this.moduleInfo[packName];
       
  1868     },
       
  1869 
       
  1870     /**
       
  1871      * Investigates the current YUI configuration on the page.  By default,
       
  1872      * modules already detected will not be loaded again unless a force
       
  1873      * option is encountered.  Called by calculate()
       
  1874      * @method _setup
       
  1875      * @private
       
  1876      */
       
  1877     _setup: function() {
       
  1878         var info = this.moduleInfo, name, i, j, m, l,
       
  1879             packName;
       
  1880 
       
  1881         for (name in info) {
       
  1882             if (info.hasOwnProperty(name)) {
       
  1883                 m = info[name];
       
  1884                 if (m) {
       
  1885 
       
  1886                     // remove dups
       
  1887                     //m.requires = YObject.keys(yArray.hash(m.requires));
       
  1888                     m.requires = yArray.dedupe(m.requires);
       
  1889 
       
  1890                     // Create lang pack modules
       
  1891                     //if (m.lang && m.lang.length) {
       
  1892                     if (m.lang) {
       
  1893                         // Setup root package if the module has lang defined,
       
  1894                         // it needs to provide a root language pack
       
  1895                         packName = this.getLangPackName(ROOT_LANG, name);
       
  1896                         this._addLangPack(null, m, packName);
       
  1897                     }
       
  1898 
       
  1899                 }
       
  1900             }
       
  1901         }
       
  1902 
       
  1903 
       
  1904         //l = Y.merge(this.inserted);
       
  1905         l = {};
       
  1906 
       
  1907         // available modules
       
  1908         if (!this.ignoreRegistered) {
       
  1909             Y.mix(l, GLOBAL_ENV.mods);
       
  1910         }
       
  1911 
       
  1912         // add the ignore list to the list of loaded packages
       
  1913         if (this.ignore) {
       
  1914             Y.mix(l, yArray.hash(this.ignore));
       
  1915         }
       
  1916 
       
  1917         // expand the list to include superseded modules
       
  1918         for (j in l) {
       
  1919             if (l.hasOwnProperty(j)) {
       
  1920                 Y.mix(l, this.getProvides(j));
       
  1921             }
       
  1922         }
       
  1923 
       
  1924         // remove modules on the force list from the loaded list
       
  1925         if (this.force) {
       
  1926             for (i = 0; i < this.force.length; i++) {
       
  1927                 if (this.force[i] in l) {
       
  1928                     delete l[this.force[i]];
       
  1929                 }
       
  1930             }
       
  1931         }
       
  1932 
       
  1933         Y.mix(this.loaded, l);
       
  1934 
       
  1935         this._init = true;
       
  1936     },
       
  1937 
       
  1938     /**
       
  1939      * Builds a module name for a language pack
       
  1940      * @method getLangPackName
       
  1941      * @param {string} lang the language code.
       
  1942      * @param {string} mname the module to build it for.
       
  1943      * @return {string} the language pack module name.
       
  1944      */
       
  1945     getLangPackName: function(lang, mname) {
       
  1946         return ('lang/' + mname + ((lang) ? '_' + lang : ''));
       
  1947     },
       
  1948     /**
       
  1949      * Inspects the required modules list looking for additional
       
  1950      * dependencies.  Expands the required list to include all
       
  1951      * required modules.  Called by calculate()
       
  1952      * @method _explode
       
  1953      * @private
       
  1954      */
       
  1955     _explode: function() {
       
  1956         //TODO Move done out of scope
       
  1957         var r = this.required, m, reqs, done = {},
       
  1958             self = this, name, expound;
       
  1959 
       
  1960         // the setup phase is over, all modules have been created
       
  1961         self.dirty = false;
       
  1962 
       
  1963         self._explodeRollups();
       
  1964         r = self.required;
       
  1965 
       
  1966         for (name in r) {
       
  1967             if (r.hasOwnProperty(name)) {
       
  1968                 if (!done[name]) {
       
  1969                     done[name] = true;
       
  1970                     m = self.getModule(name);
       
  1971                     if (m) {
       
  1972                         expound = m.expound;
       
  1973 
       
  1974                         if (expound) {
       
  1975                             r[expound] = self.getModule(expound);
       
  1976                             reqs = self.getRequires(r[expound]);
       
  1977                             Y.mix(r, yArray.hash(reqs));
       
  1978                         }
       
  1979 
       
  1980                         reqs = self.getRequires(m);
       
  1981                         Y.mix(r, yArray.hash(reqs));
       
  1982                     }
       
  1983                 }
       
  1984             }
       
  1985         }
       
  1986 
       
  1987         // Y.log('After explode: ' + YObject.keys(r));
       
  1988     },
       
  1989     /**
       
  1990     * The default method used to test a module against a pattern
       
  1991     * @method _patternTest
       
  1992     * @private
       
  1993     * @param {String} mname The module being tested
       
  1994     * @param {String} pname The pattern to match
       
  1995     */
       
  1996     _patternTest: function(mname, pname) {
       
  1997         return (mname.indexOf(pname) > -1);
       
  1998     },
       
  1999     /**
       
  2000     * Get's the loader meta data for the requested module
       
  2001     * @method getModule
       
  2002     * @param {String} mname The module name to get
       
  2003     * @return {Object} The module metadata
       
  2004     */
       
  2005     getModule: function(mname) {
       
  2006         //TODO: Remove name check - it's a quick hack to fix pattern WIP
       
  2007         if (!mname) {
       
  2008             return null;
       
  2009         }
       
  2010 
       
  2011         var p, found, pname,
       
  2012             m = this.moduleInfo[mname],
       
  2013             patterns = this.patterns;
       
  2014 
       
  2015         // check the patterns library to see if we should automatically add
       
  2016         // the module with defaults
       
  2017         if (!m || (m && m.ext)) {
       
  2018            // Y.log('testing patterns ' + YObject.keys(patterns));
       
  2019             for (pname in patterns) {
       
  2020                 if (patterns.hasOwnProperty(pname)) {
       
  2021                     // Y.log('testing pattern ' + i);
       
  2022                     p = patterns[pname];
       
  2023 
       
  2024                     //There is no test method, create a default one that tests
       
  2025                     // the pattern against the mod name
       
  2026                     if (!p.test) {
       
  2027                         p.test = this._patternTest;
       
  2028                     }
       
  2029 
       
  2030                     if (p.test(mname, pname)) {
       
  2031                         // use the metadata supplied for the pattern
       
  2032                         // as the module definition.
       
  2033                         found = p;
       
  2034                         break;
       
  2035                     }
       
  2036                 }
       
  2037             }
       
  2038         }
       
  2039 
       
  2040         if (!m) {
       
  2041             if (found) {
       
  2042                 if (p.action) {
       
  2043                     // Y.log('executing pattern action: ' + pname);
       
  2044                     p.action.call(this, mname, pname);
       
  2045                 } else {
       
  2046 Y.log('Undefined module: ' + mname + ', matched a pattern: ' +
       
  2047     pname, 'info', 'loader');
       
  2048                     // ext true or false?
       
  2049                     m = this.addModule(Y.merge(found), mname);
       
  2050                     if (found.configFn) {
       
  2051                         m.configFn = found.configFn;
       
  2052                     }
       
  2053                     m.temp = true;
       
  2054                 }
       
  2055             }
       
  2056         } else {
       
  2057             if (found && m && found.configFn && !m.configFn) {
       
  2058                 m.configFn = found.configFn;
       
  2059                 m.configFn(m);
       
  2060             }
       
  2061         }
       
  2062 
       
  2063         return m;
       
  2064     },
       
  2065 
       
  2066     // impl in rollup submodule
       
  2067     _rollup: function() { },
       
  2068 
       
  2069     /**
       
  2070      * Remove superceded modules and loaded modules.  Called by
       
  2071      * calculate() after we have the mega list of all dependencies
       
  2072      * @method _reduce
       
  2073      * @return {object} the reduced dependency hash.
       
  2074      * @private
       
  2075      */
       
  2076     _reduce: function(r) {
       
  2077 
       
  2078         r = r || this.required;
       
  2079 
       
  2080         var i, j, s, m, type = this.loadType,
       
  2081         ignore = this.ignore ? yArray.hash(this.ignore) : false;
       
  2082 
       
  2083         for (i in r) {
       
  2084             if (r.hasOwnProperty(i)) {
       
  2085                 m = this.getModule(i);
       
  2086                 // remove if already loaded
       
  2087                 if (((this.loaded[i] || ON_PAGE[i]) &&
       
  2088                         !this.forceMap[i] && !this.ignoreRegistered) ||
       
  2089                         (type && m && m.type !== type)) {
       
  2090                     delete r[i];
       
  2091                 }
       
  2092                 if (ignore && ignore[i]) {
       
  2093                     delete r[i];
       
  2094                 }
       
  2095                 // remove anything this module supersedes
       
  2096                 s = m && m.supersedes;
       
  2097                 if (s) {
       
  2098                     for (j = 0; j < s.length; j++) {
       
  2099                         if (s[j] in r) {
       
  2100                             delete r[s[j]];
       
  2101                         }
       
  2102                     }
       
  2103                 }
       
  2104             }
       
  2105         }
       
  2106 
       
  2107         return r;
       
  2108     },
       
  2109     /**
       
  2110     * Handles the queue when a module has been loaded for all cases
       
  2111     * @method _finish
       
  2112     * @private
       
  2113     * @param {String} msg The message from Loader
       
  2114     * @param {Boolean} success A boolean denoting success or failure
       
  2115     */
       
  2116     _finish: function(msg, success) {
       
  2117         Y.log('loader finishing: ' + msg + ', ' + Y.id + ', ' +
       
  2118             this.data, 'info', 'loader');
       
  2119 
       
  2120         _queue.running = false;
       
  2121 
       
  2122         var onEnd = this.onEnd;
       
  2123         if (onEnd) {
       
  2124             onEnd.call(this.context, {
       
  2125                 msg: msg,
       
  2126                 data: this.data,
       
  2127                 success: success
       
  2128             });
       
  2129         }
       
  2130         this._continue();
       
  2131     },
       
  2132     /**
       
  2133     * The default Loader onSuccess handler, calls this.onSuccess with a payload
       
  2134     * @method _onSuccess
       
  2135     * @private
       
  2136     */
       
  2137     _onSuccess: function() {
       
  2138         var self = this, skipped = Y.merge(self.skipped), fn,
       
  2139             failed = [], rreg = self.requireRegistration,
       
  2140             success, msg, i, mod;
       
  2141 
       
  2142         for (i in skipped) {
       
  2143             if (skipped.hasOwnProperty(i)) {
       
  2144                 delete self.inserted[i];
       
  2145             }
       
  2146         }
       
  2147 
       
  2148         self.skipped = {};
       
  2149 
       
  2150         for (i in self.inserted) {
       
  2151             if (self.inserted.hasOwnProperty(i)) {
       
  2152                 mod = self.getModule(i);
       
  2153                 if (mod && rreg && mod.type === JS && !(i in YUI.Env.mods)) {
       
  2154                     failed.push(i);
       
  2155                 } else {
       
  2156                     Y.mix(self.loaded, self.getProvides(i));
       
  2157                 }
       
  2158             }
       
  2159         }
       
  2160 
       
  2161         fn = self.onSuccess;
       
  2162         msg = (failed.length) ? 'notregistered' : 'success';
       
  2163         success = !(failed.length);
       
  2164         if (fn) {
       
  2165             fn.call(self.context, {
       
  2166                 msg: msg,
       
  2167                 data: self.data,
       
  2168                 success: success,
       
  2169                 failed: failed,
       
  2170                 skipped: skipped
       
  2171             });
       
  2172         }
       
  2173         self._finish(msg, success);
       
  2174     },
       
  2175     /**
       
  2176     * The default Loader onProgress handler, calls this.onProgress with a payload
       
  2177     * @method _onProgress
       
  2178     * @private
       
  2179     */
       
  2180     _onProgress: function(e) {
       
  2181         var self = this, i;
       
  2182         //set the internal cache to what just came in.
       
  2183         if (e.data && e.data.length) {
       
  2184             for (i = 0; i < e.data.length; i++) {
       
  2185                 e.data[i] = self.getModule(e.data[i].name);
       
  2186             }
       
  2187         }
       
  2188         if (self.onProgress) {
       
  2189             self.onProgress.call(self.context, {
       
  2190                 name: e.url,
       
  2191                 data: e.data
       
  2192             });
       
  2193         }
       
  2194     },
       
  2195     /**
       
  2196     * The default Loader onFailure handler, calls this.onFailure with a payload
       
  2197     * @method _onFailure
       
  2198     * @private
       
  2199     */
       
  2200     _onFailure: function(o) {
       
  2201         var f = this.onFailure, msg = [], i = 0, len = o.errors.length;
       
  2202 
       
  2203         for (i; i < len; i++) {
       
  2204             msg.push(o.errors[i].error);
       
  2205         }
       
  2206 
       
  2207         msg = msg.join(',');
       
  2208 
       
  2209         Y.log('load error: ' + msg + ', ' + Y.id, 'error', 'loader');
       
  2210 
       
  2211         if (f) {
       
  2212             f.call(this.context, {
       
  2213                 msg: msg,
       
  2214                 data: this.data,
       
  2215                 success: false
       
  2216             });
       
  2217         }
       
  2218 
       
  2219         this._finish(msg, false);
       
  2220 
       
  2221     },
       
  2222 
       
  2223     /**
       
  2224     * The default Loader onTimeout handler, calls this.onTimeout with a payload
       
  2225     * @method _onTimeout
       
  2226     * @param {Get.Transaction} transaction The Transaction object from `Y.Get`
       
  2227     * @private
       
  2228     */
       
  2229     _onTimeout: function(transaction) {
       
  2230         Y.log('loader timeout: ' + Y.id, 'error', 'loader');
       
  2231         var f = this.onTimeout;
       
  2232         if (f) {
       
  2233             f.call(this.context, {
       
  2234                 msg: 'timeout',
       
  2235                 data: this.data,
       
  2236                 success: false,
       
  2237                 transaction: transaction
       
  2238             });
       
  2239         }
       
  2240     },
       
  2241 
       
  2242     /**
       
  2243      * Sorts the dependency tree.  The last step of calculate()
       
  2244      * @method _sort
       
  2245      * @private
       
  2246      */
       
  2247     _sort: function() {
       
  2248         var name, 
       
  2249 
       
  2250             // Object containing module names.
       
  2251             required = this.required, 
       
  2252 
       
  2253             // Keep track of whether we've visited a module.
       
  2254             visited = {};
       
  2255 
       
  2256         // Will contain modules names, in the correct order, 
       
  2257         // according to dependencies.
       
  2258         this.sorted = [];
       
  2259 
       
  2260         for (name in required) {
       
  2261             if (!visited[name] && required.hasOwnProperty(name)) {
       
  2262                 this._visit(name, visited);
       
  2263             }
       
  2264         }
       
  2265     },
       
  2266 
       
  2267     /**
       
  2268      * Recursively visits the dependencies of the module name
       
  2269      * passed in, and appends each module name to the `sorted` property.
       
  2270      * @param {String} name The name of a module.
       
  2271      * @param {Object} visited Keeps track of whether a module was visited.
       
  2272      * @method _visit
       
  2273      * @private
       
  2274      */ 
       
  2275     _visit: function (name, visited) {
       
  2276         var required, moduleInfo, dependency, dependencies, i, l;     
       
  2277 
       
  2278         visited[name] = true;
       
  2279         required = this.required;
       
  2280         moduleInfo = this.moduleInfo[name];
       
  2281 
       
  2282         if (moduleInfo) {
       
  2283             // Recurse on each dependency of this module, 
       
  2284             // figuring out its dependencies, and so on.
       
  2285             dependencies = moduleInfo.requires;
       
  2286             for (i = 0, l = dependencies.length; i < l; ++i) {
       
  2287                 dependency = dependencies[i];
       
  2288                 
       
  2289                 // Is this module name in the required list of modules,
       
  2290                 // and have we not already visited it?
       
  2291                 if (required[dependency] && !visited[dependency]) {
       
  2292                     this._visit(dependency, visited);
       
  2293                 }
       
  2294             }
       
  2295         }
       
  2296 
       
  2297         this.sorted.push(name);
       
  2298     },
       
  2299 
       
  2300     /**
       
  2301     * Handles the actual insertion of script/link tags
       
  2302     * @method _insert
       
  2303     * @private
       
  2304     * @param {Object} source The YUI instance the request came from
       
  2305     * @param {Object} o The metadata to include
       
  2306     * @param {String} type JS or CSS
       
  2307     * @param {Boolean} [skipcalc=false] Do a Loader.calculate on the meta
       
  2308     */
       
  2309     _insert: function(source, o, type, skipcalc) {
       
  2310 
       
  2311         Y.log('private _insert() ' + (type || '') + ', ' + Y.id, "info", "loader");
       
  2312 
       
  2313         // restore the state at the time of the request
       
  2314         if (source) {
       
  2315             this._config(source);
       
  2316         }
       
  2317 
       
  2318         // build the dependency list
       
  2319         // don't include type so we can process CSS and script in
       
  2320         // one pass when the type is not specified.
       
  2321 
       
  2322         var modules = this.resolve(!skipcalc),
       
  2323             self = this, comp = 0, actions = 0,
       
  2324             mods = {}, deps, complete;
       
  2325 
       
  2326         self._refetch = [];
       
  2327 
       
  2328         if (type) {
       
  2329             //Filter out the opposite type and reset the array so the checks later work
       
  2330             modules[((type === JS) ? CSS : JS)] = [];
       
  2331         }
       
  2332         if (!self.fetchCSS) {
       
  2333             modules.css = [];
       
  2334         }
       
  2335         if (modules.js.length) {
       
  2336             comp++;
       
  2337         }
       
  2338         if (modules.css.length) {
       
  2339             comp++;
       
  2340         }
       
  2341 
       
  2342         //console.log('Resolved Modules: ', modules);
       
  2343 
       
  2344         complete = function(d) {
       
  2345             actions++;
       
  2346             var errs = {}, i = 0, o = 0, u = '', fn,
       
  2347                 modName, resMods;
       
  2348 
       
  2349             if (d && d.errors) {
       
  2350                 for (i = 0; i < d.errors.length; i++) {
       
  2351                     if (d.errors[i].request) {
       
  2352                         u = d.errors[i].request.url;
       
  2353                     } else {
       
  2354                         u = d.errors[i];
       
  2355                     }
       
  2356                     errs[u] = u;
       
  2357                 }
       
  2358             }
       
  2359 
       
  2360             if (d && d.data && d.data.length && (d.type === 'success')) {
       
  2361                 for (i = 0; i < d.data.length; i++) {
       
  2362                     self.inserted[d.data[i].name] = true;
       
  2363                     //If the external module has a skin or a lang, reprocess it
       
  2364                     if (d.data[i].lang || d.data[i].skinnable) {
       
  2365                         delete self.inserted[d.data[i].name];
       
  2366                         self._refetch.push(d.data[i].name);
       
  2367                     }
       
  2368                 }
       
  2369             }
       
  2370 
       
  2371             if (actions === comp) {
       
  2372                 self._loading = null;
       
  2373                 Y.log('Loader actions complete!', 'info', 'loader');
       
  2374                 if (self._refetch.length) {
       
  2375                     //Get the deps for the new meta-data and reprocess
       
  2376                     Y.log('Found potential modules to refetch', 'info', 'loader');
       
  2377                     for (i = 0; i < self._refetch.length; i++) {
       
  2378                         deps = self.getRequires(self.getModule(self._refetch[i]));
       
  2379                         for (o = 0; o < deps.length; o++) {
       
  2380                             if (!self.inserted[deps[o]]) {
       
  2381                                 //We wouldn't be to this point without the module being here
       
  2382                                 mods[deps[o]] = deps[o];
       
  2383                             }
       
  2384                         }
       
  2385                     }
       
  2386                     mods = Y.Object.keys(mods);
       
  2387                     if (mods.length) {
       
  2388                         Y.log('Refetching modules with new meta-data', 'info', 'loader');
       
  2389                         self.require(mods);
       
  2390                         resMods = self.resolve(true);
       
  2391                         if (resMods.cssMods.length) {
       
  2392                             for (i=0; i <  resMods.cssMods.length; i++) {
       
  2393                                 modName = resMods.cssMods[i].name;
       
  2394                                 delete YUI.Env._cssLoaded[modName];
       
  2395                                 if (self.isCSSLoaded(modName)) {
       
  2396                                     self.inserted[modName] = true;
       
  2397                                     delete self.required[modName];
       
  2398                                 }
       
  2399                             }
       
  2400                             self.sorted = [];
       
  2401                             self._sort();
       
  2402                         }
       
  2403                         d = null; //bail
       
  2404                         self._insert(); //insert the new deps
       
  2405                     }
       
  2406                 }
       
  2407                 if (d && d.fn) {
       
  2408                     Y.log('Firing final Loader callback!', 'info', 'loader');
       
  2409                     fn = d.fn;
       
  2410                     delete d.fn;
       
  2411                     fn.call(self, d);
       
  2412                 }
       
  2413             }
       
  2414         };
       
  2415 
       
  2416         this._loading = true;
       
  2417 
       
  2418         if (!modules.js.length && !modules.css.length) {
       
  2419             Y.log('No modules resolved..', 'warn', 'loader');
       
  2420             actions = -1;
       
  2421             complete({
       
  2422                 fn: self._onSuccess
       
  2423             });
       
  2424             return;
       
  2425         }
       
  2426 
       
  2427 
       
  2428         if (modules.css.length) { //Load CSS first
       
  2429             Y.log('Loading CSS modules', 'info', 'loader');
       
  2430             Y.Get.css(modules.css, {
       
  2431                 data: modules.cssMods,
       
  2432                 attributes: self.cssAttributes,
       
  2433                 insertBefore: self.insertBefore,
       
  2434                 charset: self.charset,
       
  2435                 timeout: self.timeout,
       
  2436                 context: self,
       
  2437                 onProgress: function(e) {
       
  2438                     self._onProgress.call(self, e);
       
  2439                 },
       
  2440                 onTimeout: function(d) {
       
  2441                     self._onTimeout.call(self, d);
       
  2442                 },
       
  2443                 onSuccess: function(d) {
       
  2444                     d.type = 'success';
       
  2445                     d.fn = self._onSuccess;
       
  2446                     complete.call(self, d);
       
  2447                 },
       
  2448                 onFailure: function(d) {
       
  2449                     d.type = 'failure';
       
  2450                     d.fn = self._onFailure;
       
  2451                     complete.call(self, d);
       
  2452                 }
       
  2453             });
       
  2454         }
       
  2455 
       
  2456         if (modules.js.length) {
       
  2457             Y.log('Loading JS modules', 'info', 'loader');
       
  2458             Y.Get.js(modules.js, {
       
  2459                 data: modules.jsMods,
       
  2460                 insertBefore: self.insertBefore,
       
  2461                 attributes: self.jsAttributes,
       
  2462                 charset: self.charset,
       
  2463                 timeout: self.timeout,
       
  2464                 autopurge: false,
       
  2465                 context: self,
       
  2466                 async: self.async,
       
  2467                 onProgress: function(e) {
       
  2468                     self._onProgress.call(self, e);
       
  2469                 },
       
  2470                 onTimeout: function(d) {
       
  2471                     self._onTimeout.call(self, d);
       
  2472                 },
       
  2473                 onSuccess: function(d) {
       
  2474                     d.type = 'success';
       
  2475                     d.fn = self._onSuccess;
       
  2476                     complete.call(self, d);
       
  2477                 },
       
  2478                 onFailure: function(d) {
       
  2479                     d.type = 'failure';
       
  2480                     d.fn = self._onFailure;
       
  2481                     complete.call(self, d);
       
  2482                 }
       
  2483             });
       
  2484         }
       
  2485     },
       
  2486     /**
       
  2487     * Once a loader operation is completely finished, process any additional queued items.
       
  2488     * @method _continue
       
  2489     * @private
       
  2490     */
       
  2491     _continue: function() {
       
  2492         if (!(_queue.running) && _queue.size() > 0) {
       
  2493             _queue.running = true;
       
  2494             _queue.next()();
       
  2495         }
       
  2496     },
       
  2497 
       
  2498     /**
       
  2499      * inserts the requested modules and their dependencies.
       
  2500      * <code>type</code> can be "js" or "css".  Both script and
       
  2501      * css are inserted if type is not provided.
       
  2502      * @method insert
       
  2503      * @param {object} o optional options object.
       
  2504      * @param {string} type the type of dependency to insert.
       
  2505      */
       
  2506     insert: function(o, type, skipsort) {
       
  2507          Y.log('public insert() ' + (type || '') + ', ' +
       
  2508          Y.Object.keys(this.required), "info", "loader");
       
  2509         var self = this, copy = Y.merge(this);
       
  2510         delete copy.require;
       
  2511         delete copy.dirty;
       
  2512         _queue.add(function() {
       
  2513             self._insert(copy, o, type, skipsort);
       
  2514         });
       
  2515         this._continue();
       
  2516     },
       
  2517 
       
  2518     /**
       
  2519      * Executed every time a module is loaded, and if we are in a load
       
  2520      * cycle, we attempt to load the next script.  Public so that it
       
  2521      * is possible to call this if using a method other than
       
  2522      * Y.register to determine when scripts are fully loaded
       
  2523      * @method loadNext
       
  2524      * @deprecated
       
  2525      * @param {string} mname optional the name of the module that has
       
  2526      * been loaded (which is usually why it is time to load the next
       
  2527      * one).
       
  2528      */
       
  2529     loadNext: function() {
       
  2530         Y.log('loadNext was called..', 'error', 'loader');
       
  2531         return;
       
  2532     },
       
  2533 
       
  2534     /**
       
  2535      * Apply filter defined for this instance to a url/path
       
  2536      * @method _filter
       
  2537      * @param {string} u the string to filter.
       
  2538      * @param {string} name the name of the module, if we are processing
       
  2539      * a single module as opposed to a combined url.
       
  2540      * @return {string} the filtered string.
       
  2541      * @private
       
  2542      */
       
  2543     _filter: function(u, name, group) {
       
  2544         var f = this.filter,
       
  2545             hasFilter = name && (name in this.filters),
       
  2546             modFilter = hasFilter && this.filters[name],
       
  2547             groupName = group || (this.moduleInfo[name] ? this.moduleInfo[name].group : null);
       
  2548 
       
  2549         if (groupName && this.groups[groupName] && this.groups[groupName].filter) {
       
  2550             modFilter = this.groups[groupName].filter;
       
  2551             hasFilter = true;
       
  2552         }
       
  2553 
       
  2554         if (u) {
       
  2555             if (hasFilter) {
       
  2556                 f = (L.isString(modFilter)) ? this.FILTER_DEFS[modFilter.toUpperCase()] || null : modFilter;
       
  2557             }
       
  2558             if (f) {
       
  2559                 u = u.replace(new RegExp(f.searchExp, 'g'), f.replaceStr);
       
  2560             }
       
  2561         }
       
  2562         return u;
       
  2563     },
       
  2564 
       
  2565     /**
       
  2566      * Generates the full url for a module
       
  2567      * @method _url
       
  2568      * @param {string} path the path fragment.
       
  2569      * @param {String} name The name of the module
       
  2570      * @param {String} [base] The base url to use. Defaults to self.base
       
  2571      * @return {string} the full url.
       
  2572      * @private
       
  2573      */
       
  2574     _url: function(path, name, base) {
       
  2575         return this._filter((base || this.base || '') + path, name);
       
  2576     },
       
  2577     /**
       
  2578     * Returns an Object hash of file arrays built from `loader.sorted` or from an arbitrary list of sorted modules.
       
  2579     * @method resolve
       
  2580     * @param {Boolean} [calc=false] Perform a loader.calculate() before anything else
       
  2581     * @param {Array} [s] An override for the loader.sorted array. Defaults to
       
  2582     * `loader.sorted`.
       
  2583     * @return {Object} Object hash (js and css) of two arrays of file lists
       
  2584     * @example This method can be used as an off-line dep calculator
       
  2585     *
       
  2586     *        var Y = YUI();
       
  2587     *        var loader = new Y.Loader({
       
  2588     *            filter: 'debug',
       
  2589     *            base: '../../',
       
  2590     *            root: 'build/',
       
  2591     *            combine: true,
       
  2592     *            require: ['node', 'dd', 'console']
       
  2593     *        });
       
  2594     *        var out = loader.resolve(true);
       
  2595     *
       
  2596     */
       
  2597     resolve: function(calc, s) {
       
  2598 
       
  2599         var len, i, m, url, group, groupName, j, frag,
       
  2600             comboSource, comboSources, mods, comboBase,
       
  2601             base, urls, u = [], tmpBase, baseLen, resCombos = {},
       
  2602             self = this, comboSep, maxURLLength,
       
  2603             inserted = (self.ignoreRegistered) ? {} : self.inserted,
       
  2604             resolved = { js: [], jsMods: [], css: [], cssMods: [] },
       
  2605             type = self.loadType || 'js', addSingle;
       
  2606 
       
  2607         if (self.skin.overrides || self.skin.defaultSkin !== DEFAULT_SKIN || self.ignoreRegistered) {
       
  2608             self._resetModules();
       
  2609         }
       
  2610 
       
  2611         if (calc) {
       
  2612             self.calculate();
       
  2613         }
       
  2614         s = s || self.sorted;
       
  2615 
       
  2616         addSingle = function(m) {
       
  2617 
       
  2618             if (m) {
       
  2619                 group = (m.group && self.groups[m.group]) || NOT_FOUND;
       
  2620 
       
  2621                 //Always assume it's async
       
  2622                 if (group.async === false) {
       
  2623                     m.async = group.async;
       
  2624                 }
       
  2625 
       
  2626                 url = (m.fullpath) ? self._filter(m.fullpath, s[i]) :
       
  2627                       self._url(m.path, s[i], group.base || m.base);
       
  2628 
       
  2629                 if (m.attributes || m.async === false) {
       
  2630                     url = {
       
  2631                         url: url,
       
  2632                         async: m.async
       
  2633                     };
       
  2634                     if (m.attributes) {
       
  2635                         url.attributes = m.attributes;
       
  2636                     }
       
  2637                 }
       
  2638                 resolved[m.type].push(url);
       
  2639                 resolved[m.type + 'Mods'].push(m);
       
  2640             } else {
       
  2641                 Y.log('Undefined Module', 'warn', 'loader');
       
  2642             }
       
  2643 
       
  2644         };
       
  2645 
       
  2646         len = s.length;
       
  2647 
       
  2648         // the default combo base
       
  2649         comboBase = self.comboBase;
       
  2650 
       
  2651         url = comboBase;
       
  2652 
       
  2653         comboSources = {};
       
  2654 
       
  2655         for (i = 0; i < len; i++) {
       
  2656             comboSource = comboBase;
       
  2657             m = self.getModule(s[i]);
       
  2658             groupName = m && m.group;
       
  2659             group = self.groups[groupName];
       
  2660             if (groupName && group) {
       
  2661 
       
  2662                 if (!group.combine || m.fullpath) {
       
  2663                     //This is not a combo module, skip it and load it singly later.
       
  2664                     addSingle(m);
       
  2665                     continue;
       
  2666                 }
       
  2667                 m.combine = true;
       
  2668                 if (group.comboBase) {
       
  2669                     comboSource = group.comboBase;
       
  2670                 }
       
  2671 
       
  2672                 if ("root" in group && L.isValue(group.root)) {
       
  2673                     m.root = group.root;
       
  2674                 }
       
  2675                 m.comboSep = group.comboSep || self.comboSep;
       
  2676                 m.maxURLLength = group.maxURLLength || self.maxURLLength;
       
  2677             } else {
       
  2678                 if (!self.combine) {
       
  2679                     //This is not a combo module, skip it and load it singly later.
       
  2680                     addSingle(m);
       
  2681                     continue;
       
  2682                 }
       
  2683             }
       
  2684 
       
  2685             comboSources[comboSource] = comboSources[comboSource] || [];
       
  2686             comboSources[comboSource].push(m);
       
  2687         }
       
  2688 
       
  2689         for (j in comboSources) {
       
  2690             if (comboSources.hasOwnProperty(j)) {
       
  2691                 resCombos[j] = resCombos[j] || { js: [], jsMods: [], css: [], cssMods: [] };
       
  2692                 url = j;
       
  2693                 mods = comboSources[j];
       
  2694                 len = mods.length;
       
  2695 
       
  2696                 if (len) {
       
  2697                     for (i = 0; i < len; i++) {
       
  2698                         if (inserted[mods[i]]) {
       
  2699                             continue;
       
  2700                         }
       
  2701                         m = mods[i];
       
  2702                         // Do not try to combine non-yui JS unless combo def
       
  2703                         // is found
       
  2704                         if (m && (m.combine || !m.ext)) {
       
  2705                             resCombos[j].comboSep = m.comboSep;
       
  2706                             resCombos[j].group = m.group;
       
  2707                             resCombos[j].maxURLLength = m.maxURLLength;
       
  2708                             frag = ((L.isValue(m.root)) ? m.root : self.root) + (m.path || m.fullpath);
       
  2709                             frag = self._filter(frag, m.name);
       
  2710                             resCombos[j][m.type].push(frag);
       
  2711                             resCombos[j][m.type + 'Mods'].push(m);
       
  2712                         } else {
       
  2713                             //Add them to the next process..
       
  2714                             if (mods[i]) {
       
  2715                                 addSingle(mods[i]);
       
  2716                             }
       
  2717                         }
       
  2718 
       
  2719                     }
       
  2720                 }
       
  2721             }
       
  2722         }
       
  2723 
       
  2724 
       
  2725         for (j in resCombos) {
       
  2726             if (resCombos.hasOwnProperty(j)) {
       
  2727                 base = j;
       
  2728                 comboSep = resCombos[base].comboSep || self.comboSep;
       
  2729                 maxURLLength = resCombos[base].maxURLLength || self.maxURLLength;
       
  2730                 Y.log('Using maxURLLength of ' + maxURLLength, 'info', 'loader');
       
  2731                 for (type in resCombos[base]) {
       
  2732                     if (type === JS || type === CSS) {
       
  2733                         urls = resCombos[base][type];
       
  2734                         mods = resCombos[base][type + 'Mods'];
       
  2735                         len = urls.length;
       
  2736                         tmpBase = base + urls.join(comboSep);
       
  2737                         baseLen = tmpBase.length;
       
  2738                         if (maxURLLength <= base.length) {
       
  2739                             Y.log('maxURLLength (' + maxURLLength + ') is lower than the comboBase length (' + base.length + '), resetting to default (' + MAX_URL_LENGTH + ')', 'error', 'loader');
       
  2740                             maxURLLength = MAX_URL_LENGTH;
       
  2741                         }
       
  2742 
       
  2743                         if (len) {
       
  2744                             if (baseLen > maxURLLength) {
       
  2745                                 Y.log('Exceeded maxURLLength (' + maxURLLength + ') for ' + type + ', splitting', 'info', 'loader');
       
  2746                                 u = [];
       
  2747                                 for (s = 0; s < len; s++) {
       
  2748                                     u.push(urls[s]);
       
  2749                                     tmpBase = base + u.join(comboSep);
       
  2750 
       
  2751                                     if (tmpBase.length > maxURLLength) {
       
  2752                                         m = u.pop();
       
  2753                                         tmpBase = base + u.join(comboSep);
       
  2754                                         resolved[type].push(self._filter(tmpBase, null, resCombos[base].group));
       
  2755                                         u = [];
       
  2756                                         if (m) {
       
  2757                                             u.push(m);
       
  2758                                         }
       
  2759                                     }
       
  2760                                 }
       
  2761                                 if (u.length) {
       
  2762                                     tmpBase = base + u.join(comboSep);
       
  2763                                     resolved[type].push(self._filter(tmpBase, null, resCombos[base].group));
       
  2764                                 }
       
  2765                             } else {
       
  2766                                 resolved[type].push(self._filter(tmpBase, null, resCombos[base].group));
       
  2767                             }
       
  2768                         }
       
  2769                         resolved[type + 'Mods'] = resolved[type + 'Mods'].concat(mods);
       
  2770                     }
       
  2771                 }
       
  2772             }
       
  2773         }
       
  2774 
       
  2775         resCombos = null;
       
  2776 
       
  2777         return resolved;
       
  2778     },
       
  2779     /**
       
  2780     Shortcut to calculate, resolve and load all modules.
       
  2781 
       
  2782         var loader = new Y.Loader({
       
  2783             ignoreRegistered: true,
       
  2784             modules: {
       
  2785                 mod: {
       
  2786                     path: 'mod.js'
       
  2787                 }
       
  2788             },
       
  2789             requires: [ 'mod' ]
       
  2790         });
       
  2791         loader.load(function() {
       
  2792             console.log('All modules have loaded..');
       
  2793         });
       
  2794 
       
  2795 
       
  2796     @method load
       
  2797     @param {Function} cb Executed after all load operations are complete
       
  2798     */
       
  2799     load: function(cb) {
       
  2800         if (!cb) {
       
  2801             Y.log('No callback supplied to load()', 'error', 'loader');
       
  2802             return;
       
  2803         }
       
  2804         var self = this,
       
  2805             out = self.resolve(true);
       
  2806 
       
  2807         self.data = out;
       
  2808 
       
  2809         self.onEnd = function() {
       
  2810             cb.apply(self.context || self, arguments);
       
  2811         };
       
  2812 
       
  2813         self.insert();
       
  2814     }
       
  2815 };
       
  2816 
       
  2817 
       
  2818 
       
  2819 }, '@VERSION@', {"requires": ["get", "features"]});