PureMVC Mediator extension

puremvc-mediator-snippet.as

private var _view:IView;
private var _notifications:Array;

final protected function registerObserver(notificationName:String, closure:Function):void
{
	_view ||= View.getInstance();
	_view.registerObserver(notificationName, new Observer(closure, this));
	
	(_notifications ||= []).push(notificationName);
}

final protected function removeObservers():void
{
	_view ||= View.getInstance();
	for each (var notificationName:String in _notifications)
		_view.removeObserver(notificationName, this);
	
	_notifications.length = 0;
}

final protected function removeObserver(notificationName:String):void
{
	_view ||= View.getInstance();
	_view.removeObserver(notificationName, this);
}