samien
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three.js
oglindă de https://github.com/mrdoob/three.js.git


			
				
					
						
						
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	<title>EventDispatcher - Three.js Docs</title>
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	<h1 translate="no">EventDispatcher</h1>
		<section>
			<header>
				<div class="class-description"><p>This modules allows to dispatch event objects on custom JavaScript objects.</p>
<p>Main repository: <a href="https://github.com/mrdoob/eventdispatcher.js/">eventdispatcher.js</a></p>
<p>Code Example:</p></div>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">class Car extends EventDispatcher {
	start() {
		this.dispatchEvent( { type: 'start', message: 'vroom vroom!' } );
	}
};
// Using events with the custom object
const car = new Car();
car.addEventListener( 'start', function ( event ) {
	alert( event.message );
} );
car.start();
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="EventDispatcher" translate="no">new <a href="#EventDispatcher">EventDispatcher</a><span class="signature">()</span> </h3>
					<div class="method">
					</div>
				</div>
				<h2 class="subsection-title">Methods</h2>
					<h3 class="name name-method" id="addEventListener" translate="no">.<a href="#addEventListener">addEventListener</a><span class="signature">( type : <span class="param-type">string</span>, listener : <span class="param-type">function</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Adds the given event listener to the given event type.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name"><code>type</code></td>
									<td class="description last"><p>The type of event to listen to.</p></td>
								</tr>
								<tr>
									<td class="name"><code>listener</code></td>
									<td class="description last"><p>The function that gets called when the event is fired.</p></td>
								</tr>
							</tbody>
						</table>
					</div>
					<h3 class="name name-method" id="dispatchEvent" translate="no">.<a href="#dispatchEvent">dispatchEvent</a><span class="signature">( event : <span class="param-type">Object</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Dispatches an event object.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name"><code>event</code></td>
									<td class="description last"><p>The event that gets fired.</p></td>
								</tr>
							</tbody>
						</table>
					</div>
					<h3 class="name name-method" id="hasEventListener" translate="no">.<a href="#hasEventListener">hasEventListener</a><span class="signature">( type : <span class="param-type">string</span>, listener : <span class="param-type">function</span> )</span><span class="type-signature"> : boolean</span> </h3>
					<div class="method">
						<div class="description">
							<p>Returns <code>true</code> if the given event listener has been added to the given event type.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name"><code>type</code></td>
									<td class="description last"><p>The type of event.</p></td>
								</tr>
								<tr>
									<td class="name"><code>listener</code></td>
									<td class="description last"><p>The listener to check.</p></td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> Whether the given event listener has been added to the given event type.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="removeEventListener" translate="no">.<a href="#removeEventListener">removeEventListener</a><span class="signature">( type : <span class="param-type">string</span>, listener : <span class="param-type">function</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Removes the given event listener from the given event type.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name"><code>type</code></td>
									<td class="description last"><p>The type of event.</p></td>
								</tr>
								<tr>
									<td class="name"><code>listener</code></td>
									<td class="description last"><p>The listener to remove.</p></td>
								</tr>
							</tbody>
						</table>
					</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/src/core/EventDispatcher.js" target="_blank" rel="noopener" translate="no">src/core/EventDispatcher.js</a>
				</p>
			</article>
		</section>
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