Pull variable FROM AS3 to javascript function?

Anyone know how to grab the values from a running AS3 file and put them into a javascript function on the html page?

I know how to initiate js functions with the ExternalInterface but not sure how to push a variable out.

What i am using this for is an MP3 player that i developed. I want to pass the variables for the "current track" and "if the player is playing". I just dont know how to begin making the swf pass out its variables

thanks for any help

will

It's not clear whether you're calling AS from JS or vice versa. If AS is calling JS, then you can simply pass parameters in the ExternalInterface calls.

Code:

---

ExternalInterface.call("someJSFunction", currentTrack, isPlaying);

---

If you are calling AS from JS, you could create and expose getter functions for your properties

Code:

---

private function getCurrentTrack():String{
  return currentTrack;
}
private function getIsPlaying():Boolean{
  return isPlaying;
}
//...
ExternalInterface.addCallback("getCurrentTrack", getCurrentTrack);
ExternalInterface.addCallback("getIsPlaying", getIsPlaying);

---

Javascript can then call those methods to get your values.

Thanks for the reply.

sorry to be confusing. I am grabbing the variables, that are constantly changing, out of the swf(mp3 player) and using them in a javascript function.


Just so that i understand:

AS3:

Code:

---

private function getCurrentTrack():String{
  return currentTrack;
}
private function getIsPlaying():Boolean{
  return isPlaying;
}

---

Javascript or AS3?:

Code:

---

ExternalInterface.addCallback("getCurrentTrack", getCurrentTrack);
ExternalInterface.addCallback("getIsPlaying", getIsPlaying);

---

Currently i am using this:
AS3:

Code:

---

public function initFunction() {
  updateStatusToPage();
}
private function getCurrentTrack():String{
  return currentTrack;
}
private function getIsPlaying():Boolean{
  return isPlaying;
}
private function updateStatusToPage() {
                        ExternalInterface.addCallback("getCurrentTrack", getCurrentTrack);
                        ExternalInterface.addCallback("getIsPlaying", getIsPlaying);
                        var result:Boolean = ExternalInterface.call("jsFunction_Update");
                        trace (ExternalInterface.available); // Trace = TRUE
}

---

javascript:

Code:

---

<script language="javascript">
        function jsFunction_Update() {
                javascript:updateStatus(currentTrack, isPlaying);
                return false;
        }
</script>

---

then the idea is that dynamically form the outside script i can pass:

Code:

---

javascript:updateStatus(4, true);

---

when i go to another page so that it will continue where i left off on my playlist

see any reason this isnt working. I'm just not familiar with talking outside of my swf.

thanks again

All code in my previous reply was Actionscript.

A couple of things:
The addCallBack calls are one-time. You do not need to call them each time you update. But that's okay, since you don't need them at all, apparently.

Second, your javascript is invalid.

Try this AS:

Code:

---

public function initFunction() {
  updateStatusToPage();
}
private function updateStatusToPage() {
                        var result:Boolean = ExternalInterface.call("jsFunction_Update", currentTrack, isPlaying);
                        trace (ExternalInterface.available); // Trace = TRUE
}

---

And this javascript:

Code:

---

<script language="javascript">
        function jsFunction_Update(currentTrack, isPlaying) {
                updateStatus(currentTrack, isPlaying);
                return false;
        }
</script>

---

i actually just went back and after looking at it for a few minutes and getting a headache from its ugliness, I weeded and cleaned it up and came up with almost the same thing. almost :)

Your suggestions really helped out. I am going to test this out later on and see if it works.

Appreciate it a lot. thanks