[RESOLVED] Dispatch and Listen for a Global Event

[5TonsOfFlax]

The built in event system does not include a "broadcast" functionality. But you can pretty easily build one yourself by making a single instance to dispatch your events.

public class Broadcaster extends EventDispatcher {
  private var _instance:Broadcaster = null;

  //DO NOT USE THIS.  Use static methods broadcastEvent and addBroadcastListener instead
  public function Broadcaster(){
    if (_instance != null){
       throw new IllegalOperationError("Broadcaster constructor called more than once");
    }
  }

  private static getInstance():Broadcaster{
    if (null == _instance){
       _instance = new Broadcaster();
    }
    return _instance;
  }

  public static broadcastEvent(event:Event):void{
    getInstance().dispatchEvent(event);
  }

  public static addBroadcastListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void{
    getInstance().addEventListener(type, listener, useCapture, priority, useWeakReference);
  }

}

Then you can register a listener from anywhere:

Broadcaster.addBroadcastListener("someEvent", somehandler);

And trigger dispatch from anywhere

Broadcaster.broadcastEvent(new Event("someEvent"));