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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="list.js"></script>
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
<h1>[name]</h1>
<p class="desc">
JavaScript events for custom objects.<br />
[link:https://github.com/mrdoob/eventdispatcher.js Eventdispatcher on GitHub]
</p>
<h2>Example</h2>
<code>
// Adding events to a custom object
var Car = function () {
this.start = function () {
this.dispatchEvent( { type: 'start', message: 'vroom vroom!' } );
};
};
// Mixing the EventDispatcher.prototype with the custom object prototype
Object.assign( Car.prototype, EventDispatcher.prototype );
// Using events with the custom object
var car = new Car();
car.addEventListener( 'start', function ( event ) {
alert( event.message );
} );
car.start();
</code>
<h2>Constructor</h2>
<h3>[name]()</h3>
<p>
Creates EventDispatcher object.
</p>
<h2>Methods</h2>
<h3>[method:null addEventListener]( [param:String type], [param:Function listener] )</h3>
<p>
type - The type of event to listen to.<br />
listener - The function that gets called when the event is fired.
</p>
<p>
Adds a listener to an event type.
</p>
<h3>[method:Boolean hasEventListener]( [param:String type], [param:Function listener] )</h3>
<p>
type - The type of event to listen to.<br />
listener - The function that gets called when the event is fired.
</p>
<p>
Checks if listener is added to an event type.
</p>
<h3>[method:null removeEventListener]( [param:String type], [param:Function listener] )</h3>
<p>
type - The type of the listener that gets removed.<br />
listener - The listener function that gets removed.
</p>
<p>
Removes a listener from an event type.
</p>
<h3>[method:null dispatchEvent]( [param:object event] )</h3>
<p>
event - The event that gets fired.
</p>
<p>
Fire an event type.
</p>
<h2>Source</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</p>
</body>
</html>
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