[AS3,Event]实现 IEventDispatcher 接口的类模板

package {
    import flash.events.IEventDispatcher;
    import flash.events.Event;
    import flash.events.EventDispatcher;

    /**
     * 抽象的 EventDispatcher。
     * 实现 IEventDispatcher 接口的模板。
     */
    public class AbstractEventDispatcher implements IEventDispatcher {
        protected var _listener:EventDispatcher;
        public function AbstractEventDispatcher() {
            _listener = new EventDispatcher(this);
        }
       
        public function hasEventListener(type:String):Boolean {
            return _listener.hasEventListener(type);
        }
       
        public function willTrigger(type:String):Boolean {
            return _listener.willTrigger(type);
        }
       
        public function addEventListener(
            type:String, listener:Function, useCapture:Boolean=false,
            priority:int=0.0, useWeakReference:Boolean=false):void
        {
            _listener.addEventListener(
                type, listener, useCapture,
                priority, useWeakReference);
        }
       
        public function removeEventListener(
            type:String, listener:Function, useCapture:Boolean=false):void
        {
            _listener.removeEventListener(type, listener, useCapture);
        }
       
        public function dispatchEvent(event:Event):Boolean {
            return _listener.dispatchEvent(event);
        }
    }
}

本文链接:http://assnippets.blogspot.com/2008/02/as3event-ieventdispatcher.html转载请注明出处。

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