AS3 pass arguments in addEventListener

[bosie]

Hi, i gather it's not possible to send arguments from Mouse Events without writing a custom EventManager. What would be a correct way to identify either the object sending the event or to pass arguments to a function specified in the Mouse Event?

I discovered this but I'm not sure if it's appropriate since i'm not familiar yet with EventManager/Dispatch stuff, I don't know what I'm looking for:
http://www.kirupa.com/forum/showthread.php?t=291250

Hypothetical:
I have a function which receives a MovieClip object then adds a listener to it - I want to then pass the same object onto the next function if the object receives a mouse click.

//ADD EVENT LISTENERS
public static function addFirstClickListener(myButton:MovieClip) {
	myButton.addEventListener(MouseEvent.CLICK, doSomething(myButton));
}

PS: trace for "myButton" turns out correctly
button passed is [object news]

[cancerinform]

Here is a thread about that:
http://board.flashkit.com/board/show...80#post3841680

[jensmct]

hello everyone, i'm a young starter(19) and i found this with a bit of a mix of javascript , however i don't know how to access evt.target in the function then... and don't know how to remove the listener also afterwards

addEventListener(MouseEvent.CLICK,function() {klik("functiontest")});

public function klik(s:String):void {
            trace(s);
            
        } 

[Schfifty Five]

hello everyone, i'm a young starter(19) and i found this with a bit of a mix of javascript , however i don't know how to access evt.target in the function then... and don't know how to remove the listener also afterwards

addEventListener(MouseEvent.CLICK,function() {klik("functiontest")});

public function klik(s:String):void {
            trace(s);
            
        } 

Try something like:

addEventListener(MouseEvent.CLICK,mouseClick);
public function mouseClick(event:MouseEvent){
klik("functiontest",event);
}

public function klik(s:String,event:Event):void {
    trace(s);
    trace(event.target);
} 

To remove the listener, use:

removeEventListener(MouseEvent.CLICK,mouseClick); 

(Sorry about not answering the original post, but I think cancerinform's link should help with that)

[neznein9]

55 that's no good...you're not actually sending a variable, just calling a second function with the same hard-coded var in it...

Flax dropped some cool closure code on this problem a while back.

[Schfifty Five]

55 that's no good...you're not actually sending a variable, just calling a second function with the same hard-coded var in it...

Flax dropped some cool closure code on this problem a while back.

I know, but for what jensmct asked, it should work fine.

[jensmct]

thx people but i already knew that, just searching for a new way to adress your problem

[neznein9]

Whoops missed the first post :P

All these solutions are overkill for that specific problem - there are two attributes of Event that will give you what you need:

myButton.addEventListener(MouseEvent.CLICK, doSomething);

private function doSomething(e:MouseEvent):void{
    trace(e.currentTarget);     //  myButton
    trace(e.target);     //  myButton or a child of it
} 

Event.currentTarget will give you the object that you attached the listener to - so for that code it would always be a reference to myButton.

Event.target will give you the object that triggered the event - so if myButton had a movieclip and a textfield inside it, you might get either object as the target depending on which _part_ of the button you clicked. It's a subtle distinction but it can save you a lot of headaches.