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/* |
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YUI 3.10.3 (build 2fb5187) |
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Copyright 2013 Yahoo! Inc. All rights reserved. |
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Licensed under the BSD License. |
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http://yuilibrary.com/license/ |
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*/ |
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YUI.add('base-base', function (Y, NAME) { |
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/** |
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* The base module provides the Base class, which objects requiring attribute and custom event support can extend. |
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* The module also provides two ways to reuse code - It augments Base with the Plugin.Host interface which provides |
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* plugin support and also provides the BaseCore.build method which provides a way to build custom classes using extensions. |
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* |
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* @module base |
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*/ |
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/** |
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* The base-base submodule provides the Base class without the Plugin support, provided by Plugin.Host, |
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* and without the extension support provided by BaseCore.build. |
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* |
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* @module base |
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* @submodule base-base |
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*/ |
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var AttributeCore = Y.AttributeCore, |
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AttributeExtras = Y.AttributeExtras, |
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BaseCore = Y.BaseCore, |
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BaseObservable = Y.BaseObservable; |
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/** |
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* <p> |
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* A base class which objects requiring attributes and custom event support can |
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* extend. Base also handles the chaining of initializer and destructor methods across |
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* the hierarchy as part of object construction and destruction. Additionally, attributes configured |
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* through the static <a href="#property_ATTRS">ATTRS</a> property for each class |
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* in the hierarchy will be initialized by Base. |
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* </p> |
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* |
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* <p> |
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* The static <a href="#property_NAME">NAME</a> property of each class extending |
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* from Base will be used as the identifier for the class, and is used by Base to prefix |
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* all events fired by instances of that class. |
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* </p> |
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* |
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* @class Base |
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* @constructor |
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* @uses BaseCore |
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* @uses BaseObservable |
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* @uses AttributeCore |
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* @uses AttributeObservable |
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* @uses AttributeExtras |
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* @uses EventTarget |
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* |
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* @param {Object} config Object with configuration property name/value pairs. The object can be |
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* used to provide default values for the objects published attributes. |
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* |
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* <p> |
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* The config object can also contain the following non-attribute properties, providing a convenient |
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* way to configure events listeners and plugins for the instance, as part of the constructor call: |
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* </p> |
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* |
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* <dl> |
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* <dt>on</dt> |
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* <dd>An event name to listener function map, to register event listeners for the "on" moment of the event. |
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* A constructor convenience property for the <a href="Base.html#method_on">on</a> method.</dd> |
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* <dt>after</dt> |
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* <dd>An event name to listener function map, to register event listeners for the "after" moment of the event. |
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* A constructor convenience property for the <a href="Base.html#method_after">after</a> method.</dd> |
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* <dt>bubbleTargets</dt> |
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* <dd>An object, or array of objects, to register as bubble targets for bubbled events fired by this instance. |
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* A constructor convenience property for the <a href="EventTarget.html#method_addTarget">addTarget</a> method.</dd> |
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* <dt>plugins</dt> |
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* <dd>A plugin, or array of plugins to be plugged into the instance (see PluginHost's plug method for signature details). |
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* A constructor convenience property for the <a href="Plugin.Host.html#method_plug">plug</a> method.</dd> |
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* </dl> |
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*/ |
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function Base() { |
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BaseCore.apply(this, arguments); |
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BaseObservable.apply(this, arguments); |
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AttributeExtras.apply(this, arguments); |
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} |
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/** |
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* The list of properties which can be configured for |
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* each attribute (e.g. setter, getter, writeOnce, readOnly etc.) |
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* |
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* @property _ATTR_CFG |
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* @type Array |
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* @static |
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* @private |
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*/ |
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Base._ATTR_CFG = BaseCore._ATTR_CFG.concat(BaseObservable._ATTR_CFG); |
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/** |
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* The array of non-attribute configuration properties supported by this class. |
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* |
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* `Base` supports "on", "after", "plugins" and "bubbleTargets" properties, |
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* which are not set up as attributes. |
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* |
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* This property is primarily required so that when |
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* <a href="#property__allowAdHocAttrs">`_allowAdHocAttrs`</a> is enabled by |
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* a class, non-attribute configurations don't get added as ad-hoc attributes. |
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* |
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* @property _NON_ATTRS_CFG |
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* @type Array |
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* @static |
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* @private |
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*/ |
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Base._NON_ATTRS_CFG = BaseCore._NON_ATTRS_CFG.concat(BaseObservable._NON_ATTRS_CFG); |
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/** |
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* <p> |
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* The string to be used to identify instances of |
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* this class, for example in prefixing events. |
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* </p> |
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* <p> |
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* Classes extending Base, should define their own |
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* static NAME property, which should be camelCase by |
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* convention (e.g. MyClass.NAME = "myClass";). |
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* </p> |
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* @property NAME |
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* @type String |
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* @static |
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*/ |
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Base.NAME = 'base'; |
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/** |
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* The default set of attributes which will be available for instances of this class, and |
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* their configuration. In addition to the configuration properties listed by |
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* Attribute's <a href="Attribute.html#method_addAttr">addAttr</a> method, the attribute |
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* can also be configured with a "cloneDefaultValue" property, which defines how the statically |
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* defined value field should be protected ("shallow", "deep" and false are supported values). |
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* |
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* By default if the value is an object literal or an array it will be "shallow" cloned, to |
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* protect the default value. |
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* |
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* @property ATTRS |
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* @type Object |
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* @static |
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*/ |
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Base.ATTRS = AttributeCore.protectAttrs(BaseCore.ATTRS); |
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/** |
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Provides a way to safely modify a `Y.Base` subclass' static `ATTRS` after |
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the class has been defined or created. |
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Base-based classes cache information about the class hierarchy in order to |
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efficiently create instances. This cache includes includes the aggregated |
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`ATTRS` configs. If the static `ATTRS` configs need to be modified after the |
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class has been defined or create, then use this method which will make sure |
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to clear any cached data before making any modifications. |
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@method modifyAttrs |
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@param {Function} [ctor] The constructor function whose `ATTRS` should be |
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modified. If a `ctor` function is not specified, then `this` is assumed |
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to be the constructor which hosts the `ATTRS`. |
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@param {Object} configs The collection of `ATTRS` configs to mix with the |
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existing attribute configurations. |
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@static |
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@since 3.10.0 |
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**/ |
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Base.modifyAttrs = BaseCore.modifyAttrs; |
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Y.mix(Base, BaseCore, false, null, 1); |
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Y.mix(Base, AttributeExtras, false, null, 1); |
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// Needs to be `true`, to overwrite methods from `BaseCore`. |
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Y.mix(Base, BaseObservable, true, null, 1); |
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// Fix constructor |
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Base.prototype.constructor = Base; |
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Y.Base = Base; |
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}, '3.10.3', {"requires": ["attribute-base", "base-core", "base-observable"]}); |