gs-events
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<li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/CustomEvent.js~CustomEvent.html">CustomEvent</a></span></span></li>
<li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/Event.js~Event.html">Event</a></span></span></li>
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<li data-ice="doc"><span data-ice="kind" class="kind-class">C</span><span data-ice="name"><span><a href="class/src/EventListener.js~EventListener.html">EventListener</a></span></span></li>
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<li data-ice="doc"><span data-ice="kind" class="kind-interface">I</span><span data-ice="name"><span><a href="class/src/IEventDispatcher.js~IEventDispatcher.html">IEventDispatcher</a></span></span></li>
<li data-ice="doc"><span data-ice="kind" class="kind-interface">I</span><span data-ice="name"><span><a href="class/src/IEventListener.js~IEventListener.html">IEventListener</a></span></span></li>
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<div class="content" data-ice="content"><h1 data-ice="title">src/EventListener.js</h1>
<pre class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/// @Copyright ~2018 ☜Samlv9☞ and other contributors
/// @MIT-LICENSE | 1.0.0 | https://api.guless.com/
/// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/// }|
/// }|
/// }| 　 へ　　　 ／|
/// _______ _______ ______ }| /　│　　 ／ ／
/// / ___ | |_ __ \ .' ____ '. }| │　Z ＿,＜　／　　 /`ヽ
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/// `=========================================/| ヽ_ﾉ　　(_／　 │／／
/// }| 7　　　　　　 |／
/// }| ＞―r￣￣`ｰ―＿`
/// }|
/// }|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in all
/// copies or substantial portions of the Software.
///
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.
import IEventListener from "./IEventListener";
import IEventListenerOptions from "./IEventListenerOptions";
import Event from "./Event";
import EventListenerOptions from "./EventListenerOptions";
/**
* 定义 {@link EventDispatcher} 的事件侦听器对象。
* @implements {IEventListener}
* @since 1.0.0
*/
export default class EventListener /*< implement IEventListener >*/ {
/**
* 创建一个侦听器对象。
*
* @param {Function|IEventListener} handler - 指定事件处理函数或者是一个侦听器。
* @param {Boolean|IEventListenerOptions} [options=false] - 指定侦听器的配置选项。
* @since 1.0.0
*/
constructor( handler, options = false ) {
/**
* @type {Function|IEventListener}
*/
this._handler = handler;
/**
* @type {EventListenerOptions}
*/
this._options = (new EventListenerOptions()).initWithParams(options);
}
/**
* 获取侦听器的处理函数。
* @type {Function|IEventListener}
* @since 1.0.0
*/
get handler() {
return this._handler;
}
/**
* 获取侦听器的配置选项。
* @type {EventListenerOptions}
* @since 1.0.0
*/
get options() {
return this._options;
}
/**
* 处理一个事件对象。
* @param {Event} event - 指定派发的事件对象。
* @since 1.0.0
*/
handleEvent( event ) {
if ( (typeof this._handler.handleEvent == "function") ) {
this._handler.handleEvent(event);
}
else {
this._handler.call(this._options.scope || event.currentTarget, event);
}
}
}</code></pre>
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