/**
 * @author SamsamTS
 */
import com.samsamts.Events.*;

class com.samsamts.Events.Event 
{
	//{ Author properties
	public static var className:String = "Event";
	public static var classPackage:String = "com.samsamts.Events";
	public static var version:String = "1.0.0";
	public static var author:String = "SamsamTS";
	public static var link:String = "http://www.samsamts.com/blog/";
	//}
	
	public function Event()
	{
		m_arrHandlers = new Array();
	}
	
	//{ Public
	/**
	* Add an EventHandler
	* @param	handler
	* @return	The event
	*/
	public function Add(handler:EventHandler):Event
	{
		Remove(handler);
		m_arrHandlers.push(handler);
		return this;
	}
	/**
	* Remove an EventHandler
	* @param	handler
	* @return	The event
	*/
	public function Remove(handler:EventHandler):Event
	{
		for (var i : Number = 0; i < m_arrHandlers.length; i++)
		{
			if(m_arrHandlers[i].Compare(handler))
			{
				m_arrHandlers.splice(i,1);
				return this;
			}
		}
		return this;
	}
	/**
	* Trigger the event (it calls all EventHandlers)
	* @param	sender Object sending the event
	* @param	arg EventArgs to be transmitted
	*/
	public function Trigger(sender:Object, arg:EventArgs):Void
	{
		var arr:Array = m_arrHandlers.slice();
		var l:Number = arr.length;
		for (var i:Number = 0; i < l; i++)
		{
			if(!arr[i].Call(sender, arg))
				Remove(arr[i]);
		}	
	}
	/**
	* Get the number of registered event handlers
	* @return number of registered event handlers
	*/
	public function get Count():Number
	{
		return m_arrHandlers.length;
	}
	
	public function toString():String
	{
		return "[Event]";
	}
	//}
	
	//{ Private
	private var m_arrHandlers:Array;
	private var m_name:String;
	//}
}