Global Dispatcher

The purpose of this post is to use a dispatcher class to handle events between all content movies in a project.

For example, in movie A, you want to notify an event to movie B and movie C, instead of using movieA.addEventListener(movieAEvent) in movie B and movie C, now we only need to use simple below code in movie A:

var dispatcher: Dispatcher = new Dispatcher();
dispatcher.dispatchEvent(movieAEvent);

and in movie B and movie C, we use:

var dispatcher: Dispatcher = new Dispatcher();
dispatcher.addEventListener(movieAEvent, eventHandler);

The Dispatcher class can also use for communication between any objects with any instances or the stage. Very simple and useful.

package com.binhdocco.dispatcher {     import flash.events.Event;     import flash.events.EventDispatcher;     import flash.events.IEventDispatcher;          /**      * ...      * @author binhdocco      */     public class Dispatcher implements IEventDispatcher {                  protected static var disp: EventDispatcher;                  public function Dispatcher() {                         if (disp == null)                 disp = new EventDispatcher();         }                  /* INTERFACE flash.events.IEventDispatcher */                  public function addEventListener(type:String, listener:Function,                                          useCapture:Boolean = false, priority:int = 0,                                          useWeakReference:Boolean = false):void{             disp.addEventListener(type, listener, useCapture, priority, useWeakReference);         }                  public function dispatchEvent(event:Event):Boolean {                         return disp.dispatchEvent(event);         }                  public function hasEventListener(type:String):Boolean{             return disp.hasEventListener(type);         }                  public function removeEventListener(type:String, listener:Function,                                              useCapture:Boolean = false):void{             disp.removeEventListener(type, listener, useCapture);         }                  public function willTrigger(type:String):Boolean{             return disp.willTrigger(type);         }              } }