--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui_3.0.0b1/build/base/base.js Mon Nov 23 15:14:29 2009 +0100
@@ -0,0 +1,1023 @@
+/*
+Copyright (c) 2009, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://developer.yahoo.net/yui/license.txt
+version: 3.0.0b1
+build: 1163
+*/
+YUI.add('base-base', function(Y) {
+
+ /**
+ * <p>
+ * An augmentable class, which provides the augmented class with the ability to host plugins.
+ * It adds <a href="#method_plug">plug</a> and <a href="#method_unplug">unplug</a> methods to the augmented class, which can
+ * be used to add or remove plugins from instances of the class.
+ * </p>
+ *
+ * <p>Plugins can also be added through the constructor configuration object passed to the host class' constructor using
+ * the "plugins" property. Supported values for the "plugins" property are those defined by the <a href="#method_plug">plug</a> method.
+ *
+ * For example the following code would add the AnimPlugin and IOPlugin to Overlay (the plugin host):
+ * <xmp>
+ * var o = new Overlay({plugins: [ AnimPlugin, {fn:IOPlugin, cfg:{section:"header"}}]});
+ * </xmp>
+ * </p>
+ * <p>
+ * Plug.Host's protected <a href="#method_initPlugins">_initPlugins</a> and <a href="#method_destroyPlugins">_destroyPlugins</a>
+ * methods should be invoked by the host class at the appropriate point in the host's lifecyle. This is done by default for
+ * the Base class, so developers extending Base or Widget don't need to do anything to enable plugin support.
+ * </p>
+ *
+ * @class Plugin.Host
+ */
+
+ var L = Y.Lang;
+
+ function PluginHost(config) {
+ this._plugins = {};
+ }
+
+ PluginHost.prototype = {
+
+ /**
+ * Adds a plugin to the host object. This will instantiate the
+ * plugin and attach it to the configured namespace on the host object.
+ *
+ * @method plug
+ * @chainable
+ * @param p {Function | Object |Array} Accepts the plugin class, or an
+ * object with a "fn" property specifying the plugin class and
+ * a "cfg" property specifying the configuration for the Plugin.
+ * <p>
+ * Additionally an Array can also be passed in, with the above function or
+ * object values, allowing the user to add multiple plugins in a single call.
+ * </p>
+ * @param config (Optional) If the first argument is the plugin class, the second argument
+ * can be the configuration for the plugin.
+ * @return {Base} A reference to the host object
+ */
+
+ plug: function(p, config) {
+ if (p) {
+ if (L.isFunction(p)) {
+ this._plug(p, config);
+ } else if (L.isArray(p)) {
+ for (var i = 0, ln = p.length; i < ln; i++) {
+ this.plug(p[i]);
+ }
+ } else {
+ this._plug(p.fn, p.cfg);
+ }
+ }
+ return this;
+ },
+
+ /**
+ * Removes a plugin from the host object. This will destroy the
+ * plugin instance and delete the namepsace from the host object.
+ *
+ * @method unplug
+ * @param {String | Function} plugin The namespace of the plugin, or the plugin class with the static NS namespace property defined. If not provided,
+ * all registered plugins are unplugged.
+ * @return {Base} A reference to the host object
+ * @chainable
+ */
+ unplug: function(plugin) {
+ if (plugin) {
+ this._unplug(plugin);
+ } else {
+ var ns;
+ for (ns in this._plugins) {
+ if (this._plugins.hasOwnProperty(ns)) {
+ this._unplug(ns);
+ }
+ }
+ }
+ return this;
+ },
+
+ /**
+ * Determines if a plugin has plugged into this host.
+ *
+ * @method hasPlugin
+ * @param {String} ns The plugin's namespace
+ * @return {boolean} returns true, if the plugin has been plugged into this host, false otherwise.
+ */
+ hasPlugin : function(ns) {
+ return (this._plugins[ns] && this[ns]);
+ },
+
+ /**
+ * Initializes static plugins registered on the host (using the
+ * Base.plug static method) and any plugins passed to the
+ * instance through the "plugins" configuration property.
+ *
+ * @method _initPlugins
+ * @param {Config} config The configuration object with property name/value pairs.
+ * @private
+ */
+ _initPlugins: function(config) {
+
+ // Class Configuration
+ var classes = this._getClasses(),
+ plug = [],
+ unplug = {},
+ constructor, i, classPlug, classUnplug, pluginClassName;
+
+ //TODO: Room for optimization. Can we apply statically/unplug in same pass?
+ for (i = classes.length - 1; i >= 0; i--) {
+ constructor = classes[i];
+
+ classUnplug = constructor._UNPLUG;
+ if (classUnplug) {
+ // subclasses over-write
+ Y.mix(unplug, classUnplug, true);
+ }
+
+ classPlug = constructor._PLUG;
+ if (classPlug) {
+ // subclasses over-write
+ Y.mix(plug, classPlug, true);
+ }
+ }
+
+ for (pluginClassName in plug) {
+ if (plug.hasOwnProperty(pluginClassName)) {
+ if (!unplug[pluginClassName]) {
+ this.plug(plug[pluginClassName]);
+ }
+ }
+ }
+
+ // User Configuration
+ if (config && config.plugins) {
+ this.plug(config.plugins);
+ }
+ },
+
+ /**
+ * Unplugs and destroys all plugins on the host
+ * @method _destroyPlugins
+ * @private
+ */
+ _destroyPlugins: function() {
+ this._unplug();
+ },
+
+ /**
+ * Private method used to instantiate and attach plugins to the host
+ *
+ * @method _plug
+ * @param {Function} PluginClass The plugin class to instantiate
+ * @param {Object} config The configuration object for the plugin
+ * @private
+ */
+ _plug: function(PluginClass, config) {
+ if (PluginClass && PluginClass.NS) {
+ var ns = PluginClass.NS;
+
+ config = config || {};
+ config.host = this;
+
+ if (this.hasPlugin(ns)) {
+ // Update config
+ this[ns].setAttrs(config);
+ } else {
+ // Create new instance
+ this[ns] = new PluginClass(config);
+ this._plugins[ns] = PluginClass;
+ }
+ }
+ },
+
+ /**
+ * Unplugs and destroys a plugin already instantiated with the host.
+ *
+ * @method _unplug
+ * @private
+ * @param {String | Function} plugin The namespace for the plugin, or a plugin class with the static NS property defined.
+ */
+ _unplug : function(plugin) {
+ var ns = plugin,
+ plugins = this._plugins;
+
+ if (L.isFunction(plugin)) {
+ ns = plugin.NS;
+ if (ns && (!plugins[ns] || plugins[ns] !== plugin)) {
+ ns = null;
+ }
+ }
+
+ if (ns) {
+ if (this[ns]) {
+ this[ns].destroy();
+ delete this[ns];
+ }
+ if (plugins[ns]) {
+ delete plugins[ns];
+ }
+ }
+ }
+ };
+
+ /**
+ * Registers plugins to be instantiated at the class level (plugins
+ * which should be plugged into every instance of the class by default).
+ *
+ * @method Plugin.Host.plug
+ * @static
+ *
+ * @param {Function} hostClass The host class on which to register the plugins
+ * @param {Function | Array} plugin Either the plugin class, an array of plugin classes or an array of objects (with fn and cfg properties defined)
+ * @param {Object} config (Optional) If plugin is the plugin class, the configuration for the plugin
+ */
+ PluginHost.plug = function(hostClass, plugin, config) {
+ // Cannot plug into Base, since Plugins derive from Base [ will cause infinite recurrsion ]
+ var p, i, l, name;
+
+ if (hostClass !== Y.Base) {
+ hostClass._PLUG = hostClass._PLUG || {};
+
+ if (!L.isArray(plugin)) {
+ if (config) {
+ plugin = {fn:plugin, cfg:config};
+ }
+ plugin = [plugin];
+ }
+
+ for (i = 0, l = plugin.length; i < l;i++) {
+ p = plugin[i];
+ name = p.NAME || p.fn.NAME;
+ hostClass._PLUG[name] = p;
+ }
+ }
+ };
+
+ /**
+ * Unregisters any class level plugins which have been registered by the host class, or any
+ * other class in the hierarchy.
+ *
+ * @method Plugin.Host.unplug
+ * @static
+ *
+ * @param {Function} hostClass The host class from which to unregister the plugins
+ * @param {Function | Array} plugin The plugin class, or an array of plugin classes
+ */
+ PluginHost.unplug = function(hostClass, plugin) {
+ var p, i, l, name;
+
+ if (hostClass !== Y.Base) {
+ hostClass._UNPLUG = hostClass._UNPLUG || {};
+
+ if (!L.isArray(plugin)) {
+ plugin = [plugin];
+ }
+
+ for (i = 0, l = plugin.length; i < l; i++) {
+ p = plugin[i];
+ name = p.NAME;
+ if (!hostClass._PLUG[name]) {
+ hostClass._UNPLUG[name] = p;
+ } else {
+ delete hostClass._PLUG[name];
+ }
+ }
+ }
+ };
+
+ Y.namespace("Plugin").Host = PluginHost;
+
+ /**
+ * The base module provides the Base class, which objects requiring attribute and custom event support can extend.
+ * The module also provides two ways to reuse code - An augmentable Plugin.Host interface which provides plugin support
+ * (which is augmented to the Base class) and Base.build which provides a way to
+ * build custom classes using extensions.
+ *
+ * @module base
+ */
+
+ /**
+ * The base-base submodule provides the Base class and augmentable Plugin.Host implementation,
+ * without the extension support provided by Base.build.
+ *
+ * @module base
+ * @submodule base-base
+ */
+ var O = Y.Object,
+ DOT = ".",
+ DESTROY = "destroy",
+ INIT = "init",
+ INITIALIZED = "initialized",
+ DESTROYED = "destroyed",
+ INITIALIZER = "initializer",
+ OBJECT_CONSTRUCTOR = Object.prototype.constructor,
+ DEEP = "deep",
+ SHALLOW = "shallow",
+ VALUE = "value",
+ DESTRUCTOR = "destructor";
+
+ /**
+ * <p>
+ * A base class which objects requiring attributes and custom event support can
+ * extend. Base also handles the chaining of initializer and destructor methods across
+ * the hierarchy as part of object construction and destruction. Additionally, attributes configured
+ * through the static <a href="#property_Base.ATTRS">ATTRS</a> property for each class
+ * in the hierarchy will be initialized by Base.
+ * </p>
+ *
+ * <p>
+ * The static <a href="#property_Base.NAME">NAME</a> property of each class extending
+ * from Base will be used as the identifier for the class, and is used by Base to prefix
+ * all events fired by instances of that class.
+ * </p>
+ * @class Base
+ * @constructor
+ * @uses Attribute
+ * @uses Plugin.Host
+ *
+ * @param {Object} config Object with configuration property name/value pairs
+ */
+ function Base() {
+
+ Y.Attribute.call(this);
+ Y.Plugin.Host.call(this);
+
+ this._silentInit = this._silentInit || false;
+ if (this._lazyAddAttrs !== false) { this._lazyAddAttrs = true; }
+
+ this.init.apply(this, arguments);
+ }
+
+ /**
+ * The list of properties which can be configured for
+ * each attribute (e.g. setter, getter, writeOnce, readOnly etc.)
+ *
+ * @property Base._ATTR_CFG
+ * @type Array
+ * @static
+ * @private
+ */
+ Base._ATTR_CFG = Y.Attribute._ATTR_CFG.concat("cloneDefaultValue");
+
+ /**
+ * <p>
+ * The string to be used to identify instances of
+ * this class, for example in prefixing events.
+ * </p>
+ * <p>
+ * Classes extending Base, should define their own
+ * static NAME property, which should be camelCase by
+ * convention (e.g. MyClass.NAME = "myClass";).
+ * </p>
+ * @property Base.NAME
+ * @type String
+ * @static
+ */
+ Base.NAME = 'base';
+
+ /**
+ * The default set of attributes which will be available for instances of this class, and
+ * their configuration. In addition to the configuration properties listed by
+ * Attribute's <a href="Attribute.html#method_addAttr">addAttr</a> method, the attribute
+ * can also be configured with a "cloneDefaultValue" property, which defines how the statically
+ * defined value field should be protected ("shallow", "deep" and false are supported values).
+ *
+ * By default if the value is an object literal or an array it will be "shallow" cloned, to
+ * protect the default value.
+ *
+ * @property Base.ATTRS
+ * @type Object
+ * @static
+ */
+ Base.ATTRS = {
+ /**
+ * Flag indicating whether or not this object
+ * has been through the init lifecycle phase.
+ *
+ * @attribute initialized
+ * @readonly
+ * @default false
+ * @type boolean
+ */
+ initialized: {
+ readOnly:true,
+ value:false
+ },
+
+ /**
+ * Flag indicating whether or not this object
+ * has been through the destroy lifecycle phase.
+ *
+ * @attribute destroyed
+ * @readonly
+ * @default false
+ * @type boolean
+ */
+ destroyed: {
+ readOnly:true,
+ value:false
+ }
+ };
+
+ Base.prototype = {
+
+ /**
+ * Init lifecycle method, invoked during construction.
+ * Fires the init event prior to setting up attributes and
+ * invoking initializers for the class hierarchy.
+ *
+ * @method init
+ * @final
+ * @chainable
+ * @param {Object} config Object with configuration property name/value pairs
+ * @return {Base} A reference to this object
+ */
+ init: function(config) {
+
+ /**
+ * The string used to identify the class of this object.
+ *
+ * @deprecated Use this.constructor.NAME
+ * @property name
+ * @type String
+ */
+ this._yuievt.config.prefix = this.name = this.constructor.NAME;
+
+ /**
+ * <p>
+ * Lifecycle event for the init phase, fired prior to initialization.
+ * Invoking the preventDefault() method on the event object provided
+ * to subscribers will prevent initialization from occuring.
+ * </p>
+ * <p>
+ * Subscribers to the "after" momemt of this event, will be notified
+ * after initialization of the object is complete (and therefore
+ * cannot prevent initialization).
+ * </p>
+ *
+ * @event init
+ * @preventable _defInitFn
+ * @param {EventFacade} e Event object, with a cfg property which
+ * refers to the configuration object passed to the constructor.
+ */
+ if (!this._silentInit) {
+ this.publish(INIT, {
+ queuable:false,
+ defaultFn:this._defInitFn
+ });
+ }
+
+ if (config) {
+ if (config.on) {
+ this.on(config.on);
+ }
+ if (config.after) {
+ this.after(config.after);
+ }
+ }
+
+ if (!this._silentInit) {
+ this.fire(INIT, {cfg: config});
+ } else {
+ this._defInitFn({cfg: config});
+ }
+
+ return this;
+ },
+
+ /**
+ * <p>
+ * Destroy lifecycle method. Fires the destroy
+ * event, prior to invoking destructors for the
+ * class hierarchy.
+ * </p>
+ * <p>
+ * Subscribers to the destroy
+ * event can invoke preventDefault on the event object, to prevent destruction
+ * from proceeding.
+ * </p>
+ * @method destroy
+ * @return {Base} A reference to this object
+ * @final
+ * @chainable
+ */
+ destroy: function() {
+
+ /**
+ * <p>
+ * Lifecycle event for the destroy phase,
+ * fired prior to destruction. Invoking the preventDefault
+ * method on the event object provided to subscribers will
+ * prevent destruction from proceeding.
+ * </p>
+ * <p>
+ * Subscribers to the "after" moment of this event, will be notified
+ * after destruction is complete (and as a result cannot prevent
+ * destruction).
+ * </p>
+ * @event destroy
+ * @preventable _defDestroyFn
+ * @param {EventFacade} e Event object
+ */
+ this.publish(DESTROY, {
+ queuable:false,
+ defaultFn: this._defDestroyFn
+ });
+ this.fire(DESTROY);
+ return this;
+ },
+
+ /**
+ * Default init event handler
+ *
+ * @method _defInitFn
+ * @param {EventFacade} e Event object, with a cfg property which
+ * refers to the configuration object passed to the constructor.
+ * @protected
+ */
+ _defInitFn : function(e) {
+ this._initHierarchy(e.cfg);
+ this._initPlugins(e.cfg);
+
+ if (!this._silentInit) {
+ this._set(INITIALIZED, true);
+ } else {
+ this._conf.add(INITIALIZED, VALUE, true);
+ }
+ },
+
+ /**
+ * Default destroy event handler
+ *
+ * @method _defDestroyFn
+ * @param {EventFacade} e Event object
+ * @protected
+ */
+ _defDestroyFn : function(e) {
+ this._destroyHierarchy();
+ this._destroyPlugins();
+ this._set(DESTROYED, true);
+ },
+
+ /**
+ * Returns the class hierarchy for this object, with Base being the last class in the array.
+ *
+ * @method _getClasses
+ * @protected
+ * @return {Function[]} An array of classes (constructor functions), making up the class hierarchy for this object.
+ * This value is cached the first time the method, or _getAttrCfgs, is invoked. Subsequent invocations return the
+ * cached value.
+ */
+ _getClasses : function() {
+ if (!this._classes) {
+ this._initHierarchyData();
+ }
+ return this._classes;
+ },
+
+ /**
+ * Returns an aggregated set of attribute configurations, by traversing the class hierarchy.
+ *
+ * @method _getAttrCfgs
+ * @protected
+ * @return {Object} The hash of attribute configurations, aggregated across classes in the hierarchy
+ * This value is cached the first time the method, or _getClasses, is invoked. Subsequent invocations return
+ * the cached value.
+ */
+ _getAttrCfgs : function() {
+ if (!this._attrs) {
+ this._initHierarchyData();
+ }
+ return this._attrs;
+ },
+
+ /**
+ * A helper method used when processing ATTRS across the class hierarchy during
+ * initialization. Returns a disposable object with the attributes defined for
+ * the provided class, extracted from the set of all attributes passed in .
+ *
+ * @method _filterAttrCfs
+ * @private
+ *
+ * @param {Function} clazz The class for which the desired attributes are required.
+ * @param {Object} allCfgs The set of all attribute configurations for this instance.
+ * Attributes will be removed from this set, if they belong to the filtered class, so
+ * that by the time all classes are processed, allCfgs will be empty.
+ *
+ * @return {Object} The set of attributes belonging to the class passed in, in the form
+ * of an object with attribute name/configuration pairs.
+ */
+ _filterAttrCfgs : function(clazz, allCfgs) {
+ var cfgs = null, attr, attrs = clazz.ATTRS;
+
+ if (attrs) {
+ for (attr in attrs) {
+ if (attrs.hasOwnProperty(attr) && allCfgs[attr]) {
+ cfgs = cfgs || {};
+ cfgs[attr] = allCfgs[attr];
+ delete allCfgs[attr];
+ }
+ }
+ }
+
+ return cfgs;
+ },
+
+ /**
+ * A helper method used by _getClasses and _getAttrCfgs, which determines both
+ * the array of classes and aggregate set of attribute configurations
+ * across the class hierarchy for the instance.
+ *
+ * @method _initHierarchyData
+ * @private
+ */
+ _initHierarchyData : function() {
+ var c = this.constructor,
+ classes = [],
+ attrs = [];
+
+ while (c) {
+ // Add to classes
+ classes[classes.length] = c;
+
+ // Add to attributes
+ if (c.ATTRS) {
+ attrs[attrs.length] = c.ATTRS;
+ }
+ c = c.superclass ? c.superclass.constructor : null;
+ }
+
+ this._classes = classes;
+ this._attrs = this._aggregateAttrs(attrs);
+ },
+
+ /**
+ * A helper method, used by _initHierarchyData to aggregate
+ * attribute configuration across the instances class hierarchy.
+ *
+ * The method will potect the attribute configuration value to protect the statically defined
+ * default value in ATTRS if required (if the value is an object literal, array or the
+ * attribute configuration has cloneDefaultValue set to shallow or deep).
+ *
+ * @method _aggregateAttrs
+ * @private
+ * @param {Array} allAttrs An array of ATTRS definitions across classes in the hierarchy
+ * (subclass first, Base last)
+ * @return {Object} The aggregate set of ATTRS definitions for the instance
+ */
+ _aggregateAttrs : function(allAttrs) {
+ var attr,
+ attrs,
+ cfg,
+ val,
+ path,
+ i,
+ clone,
+ cfgProps = Base._ATTR_CFG,
+ aggAttrs = {};
+
+ if (allAttrs) {
+ for (i = allAttrs.length-1; i >= 0; --i) {
+ attrs = allAttrs[i];
+
+ for (attr in attrs) {
+ if (attrs.hasOwnProperty(attr)) {
+
+ // Protect config passed in
+ cfg = Y.mix({}, attrs[attr], true, cfgProps);
+
+ val = cfg.value;
+ clone = cfg.cloneDefaultValue;
+
+ if (val) {
+ if ( (clone === undefined && (OBJECT_CONSTRUCTOR === val.constructor || L.isArray(val))) || clone === DEEP || clone === true) {
+ cfg.value = Y.clone(val);
+ } else if (clone === SHALLOW) {
+ cfg.value = Y.merge(val);
+ }
+ // else if (clone === false), don't clone the static default value.
+ // It's intended to be used by reference.
+ }
+
+ path = null;
+ if (attr.indexOf(DOT) !== -1) {
+ path = attr.split(DOT);
+ attr = path.shift();
+ }
+
+ if (path && aggAttrs[attr] && aggAttrs[attr].value) {
+ O.setValue(aggAttrs[attr].value, path, val);
+ } else if (!path){
+ if (!aggAttrs[attr]) {
+ aggAttrs[attr] = cfg;
+ } else {
+ Y.mix(aggAttrs[attr], cfg, true, cfgProps);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return aggAttrs;
+ },
+
+ /**
+ * Initializes the class hierarchy for the instance, which includes
+ * initializing attributes for each class defined in the class's
+ * static <a href="#property_Base.ATTRS">ATTRS</a> property and
+ * invoking the initializer method on the prototype of each class in the hierarchy.
+ *
+ * @method _initHierarchy
+ * @param {Object} userVals Object with configuration property name/value pairs
+ * @private
+ */
+ _initHierarchy : function(userVals) {
+ var lazy = this._lazyAddAttrs,
+ constr,
+ constrProto,
+ ci,
+ ei,
+ el,
+ classes = this._getClasses(),
+ attrCfgs = this._getAttrCfgs();
+
+ for (ci = classes.length-1; ci >= 0; ci--) {
+
+ constr = classes[ci];
+ constrProto = constr.prototype;
+
+ if (constr._yuibuild && constr._yuibuild.exts && !constr._yuibuild.dynamic) {
+ for (ei = 0, el = constr._yuibuild.exts.length; ei < el; ei++) {
+ constr._yuibuild.exts[ei].apply(this, arguments);
+ }
+ }
+
+ this.addAttrs(this._filterAttrCfgs(constr, attrCfgs), userVals, lazy);
+
+ if (constrProto.hasOwnProperty(INITIALIZER)) {
+ constrProto.initializer.apply(this, arguments);
+ }
+ }
+ },
+
+ /**
+ * Destroys the class hierarchy for this instance by invoking
+ * the descructor method on the prototype of each class in the hierarchy.
+ *
+ * @method _destroyHierarchy
+ * @private
+ */
+ _destroyHierarchy : function() {
+ var constr,
+ constrProto,
+ ci, cl,
+ classes = this._getClasses();
+
+ for (ci = 0, cl = classes.length; ci < cl; ci++) {
+ constr = classes[ci];
+ constrProto = constr.prototype;
+ if (constrProto.hasOwnProperty(DESTRUCTOR)) {
+ constrProto.destructor.apply(this, arguments);
+ }
+ }
+ },
+
+ /**
+ * Default toString implementation. Provides the constructor NAME
+ * and the instance ID.
+ *
+ * @method toString
+ * @return {String} String representation for this object
+ */
+ toString: function() {
+ return this.constructor.NAME + "[" + Y.stamp(this) + "]";
+ }
+ };
+
+ // Straightup augment, no wrapper functions
+ Y.mix(Base, Y.Attribute, false, null, 1);
+ Y.mix(Base, PluginHost, false, null, 1);
+
+ /**
+ * Alias for <a href="Plugin.Host.html#method_Plugin.Host.plug">Plugin.Host.plug</a>. See aliased
+ * method for argument and return value details.
+ *
+ * @method Base.plug
+ * @static
+ */
+ Base.plug = PluginHost.plug;
+
+ /**
+ * Alias for <a href="Plugin.Host.html#method_Plugin.Host.unplug">Plugin.Host.unplug</a>. See the
+ * aliased method for argument and return value details.
+ *
+ * @method Base.unplug
+ * @static
+ */
+ Base.unplug = PluginHost.unplug;
+
+ // Fix constructor
+ Base.prototype.constructor = Base;
+
+ Y.Base = Base;
+
+
+
+}, '3.0.0b1' ,{requires:['attribute']});
+
+YUI.add('base-build', function(Y) {
+
+ /**
+ * The base-build submodule provides Base.build functionality, which
+ * can be used to create custom classes, by aggregating extensions onto
+ * a main class.
+ *
+ * @module base
+ * @submodule base-build
+ * @for Base
+ */
+
+ var Base = Y.Base,
+ L = Y.Lang;
+
+ /**
+ * The build configuration for the Base class.
+ *
+ * Defines the static fields which need to be aggregated
+ * when the Base class is used as the main class passed to
+ * the <a href="#method_Base.build">Base.build</a> method.
+ *
+ * @property Base._buildCfg
+ * @type Object
+ * @static
+ * @final
+ * @private
+ */
+ Base._buildCfg = {
+ aggregates : ["ATTRS", "_PLUG", "_UNPLUG"]
+ };
+
+ /**
+ * <p>
+ * Builds a custom constructor function (class) from the
+ * main function, and array of extension functions (classes)
+ * provided. The NAME field for the constructor function is
+ * defined by the first argument passed in.
+ * </p>
+ * <p>
+ * The cfg object supports the following properties
+ * </p>
+ * <dl>
+ * <dt>dynamic <boolean></dt>
+ * <dd>
+ * <p>If true (default), a completely new class
+ * is created which extends the main class, and acts as the
+ * host on which the extension classes are augmented.</p>
+ * <p>If false, the extensions classes are augmented directly to
+ * the main class, modifying the main class' prototype.</p>
+ * </dd>
+ * <dt>aggregates <String[]></dt>
+ * <dd>An array of static property names, which will get aggregated
+ * on to the built class, in addition to the default properties build
+ * will always aggregate as defined by the main class' static _buildCfg
+ * property.
+ * </dd>
+ * </dl>
+ *
+ * @method Base.build
+ * @static
+ * @param {Function} name The name of the new class. Used to defined the NAME property for the new class.
+ * @param {Function} main The main class on which to base the built class
+ * @param {Function[]} extensions The set of extension classes which will be
+ * augmented/aggregated to the built class.
+ * @param {Object} cfg Optional. Build configuration for the class (see description).
+ * @return {Function} A custom class, created from the provided main and extension classes
+ */
+ Base.build = function(name, main, extensions, cfg) {
+
+ var build = Base.build,
+ builtClass = build._getClass(main, cfg),
+ aggregates = build._getAggregates(main, cfg),
+ dynamic = builtClass._yuibuild.dynamic,
+ i, l, val, extClass;
+
+ // Shallow isolate aggregates
+ if (dynamic) {
+ if (aggregates) {
+ for (i = 0, l = aggregates.length; i < l; ++i) {
+ val = aggregates[i];
+ if (main.hasOwnProperty(val)) {
+ builtClass[val] = L.isArray(main[val]) ? [] : {};
+ }
+ }
+ Y.aggregate(builtClass, main, true, aggregates);
+ }
+ }
+
+ // Augment/Aggregate
+ for (i = 0, l = extensions.length; i < l; i++) {
+ extClass = extensions[i];
+
+ if (aggregates) {
+ Y.aggregate(builtClass, extClass, true, aggregates);
+ }
+
+ // Old augment
+ Y.mix(builtClass, extClass, true, null, 1);
+
+ builtClass._yuibuild.exts.push(extClass);
+ }
+
+ builtClass.prototype.hasImpl = build._hasImpl;
+
+ if (dynamic) {
+ builtClass.NAME = name;
+ builtClass.prototype.constructor = builtClass;
+ }
+
+ return builtClass;
+ };
+
+ Y.mix(Base.build, {
+
+ _template: function(main) {
+
+ function BuiltClass() {
+
+ BuiltClass.superclass.constructor.apply(this, arguments);
+
+ var f = BuiltClass._yuibuild.exts,
+ l = f.length,
+ i;
+
+ for (i = 0; i < l; i++) {
+ f[i].apply(this, arguments);
+ }
+
+ return this;
+ }
+ Y.extend(BuiltClass, main);
+
+ return BuiltClass;
+ },
+
+ _hasImpl : function(extClass) {
+ if (this.constructor._yuibuild) {
+ var f = this.constructor._yuibuild.exts,
+ l = f.length,
+ i;
+
+ for (i = 0; i < l; i++) {
+ if (f[i] === extClass) {
+ return true;
+ }
+ }
+ }
+ return false;
+ },
+
+ _getClass : function(main, cfg) {
+
+ var dynamic = (cfg && false === cfg.dynamic) ? false : true,
+ builtClass = (dynamic) ? Base.build._template(main) : main;
+
+ builtClass._yuibuild = {
+ id: null,
+ exts : [],
+ dynamic : dynamic
+ };
+
+ return builtClass;
+ },
+
+ _getAggregates : function(main, cfg) {
+ var aggr = [],
+ cfgAggr = (cfg && cfg.aggregates),
+ c = main,
+ classAggr;
+
+ while (c && c.prototype) {
+ classAggr = c._buildCfg && c._buildCfg.aggregates;
+ if (classAggr) {
+ aggr = aggr.concat(classAggr);
+ }
+ c = c.superclass ? c.superclass.constructor : null;
+ }
+
+ if (cfgAggr) {
+ aggr = aggr.concat(cfgAggr);
+ }
+
+ return aggr;
+ }
+ });
+
+
+
+}, '3.0.0b1' ,{requires:['base-base']});
+
+
+
+YUI.add('base', function(Y){}, '3.0.0b1' ,{use:['base-base', 'base-build']});
+