How do I interact with a loaded swf?

Question

Hi,
I have a "lesson" that I'm building that will display a series of "pages" based on an XML file. I have simple navigation buttons that work to page through the XML file. but I'd like to use load an external SWF file with buttons to use as my navigation panel. Everything is AS 3.0. The code to load the navigation movie looks like this:
// load navigator
   navLoader = new Loader;
   navLoader.contentLoaderInfo.addEventListener(Event.INIT, handleInit);
   navLoader.x = 50;
   navLoader.y = 200;
   lessonSprite.addChild(navLoader);
   navLoader.load( new URLRequest("Navigator1.swf"));
The loaded navigation movie has two buttons. How do I add an event listener to those buttons so that they call a function in the parent movie so I can detect when the user clicks on the button named "GoNext" in the loaded movie?  I've tried several ways but I've had no luck. Could someone please point me in the right direction? This navigation panel is only one application of this sort of communication that I'll need in other parts of this type of lesson so I really need to figure out how to detect user interaction interaction with the loaded movie. Guess I need to know how to call a function in the parent movie from the loaded movie.
Thanks,
Peter H.

Answer 1

Hey Pete,
The answer that you seek and the simplest one as well will be from the MouseEvent. that  you will most likely have applied to your loaded swf.
As long as both swfs are in the same domain, you wont have any issues with security and therefor, the MouseEvent. which bubbles up, will be able to reach your swf file which has loaded it.
You can then write your code in your loaded swf to simply listen to the loadedMovieClip  by targeting the contents of navLoader just like this,
navLoader.content.addEventListener(MouseEvent.MOUSE_DOWN,onDown)
protected function onDown(me:MouseEvent){
now providing you have given your two buttons names in your loaded swf, you will be able to perform addition tasks by receiving the name of the target.
protected function onDown(me:MouseEvent){
var btnClip:Movie= me.target as MovieClip
          var btnName=btnClip.name
if(btnName==(button1)){
     //do the following
}else{
       //it was button two
button1 was just a random name in this case .
This will do the trick