_global.EventBroadcaster = new Object();
EventBroadcaster.initialize = function(obj){
obj._listeners = new Array();
obj.broadcastMessage = this._broadcastMessage;
obj.addListener = this._addListener;
obj.removeListener = this._removeListener;
}
EventBroadcaster._broadcastMessage = function(){
var eventName = arguments.shift();
var list = this._listeners;
var max = list.length;
for (var i=0; i list[i][eventName].apply(list[i], arguments);
}
}
EventBroadcaster._addListener = function(obj){
this.removeListener(obj);
this._listeners.push(obj);
return (true);
}
EventBroadcaster._removeListener = function(obj){
var list = this._listeners;
var i = list.length;
while (i--){
if (list[i] == obj){
list.splice(i, 1);
return (true);
}
}
return (false);
} |
|
