Hi, I'm trying to use ExternalInterface to expose functions of my as3 code to javascript. It is working very well, following the Flash CS3 help on Firefox and Chrome browsers, however on IE 8 things are getting hard...
At my HTML page I used the help-suggested functions to confirm the connection between js and as:
<script language="JavaScript" type="text/javascript">
// variables
var jsReady = false; // is javascript ready to listen to flash calls?
var asReady = false; // is actionscript ready to receive javascript calls?
// Called when the page is drawn at body tag - at this moment, the JavaScript engine is ready to listen to flash.
function pageInit() {
jsReady = true; alert('pageinit ok');
}
// Called by Flash to check wether the JavaScript is ready for communication.
function isReady() {
return (jsReady);
alert ('js ready');
}
// Called by flash to inform it is responsive to javascript calls.
function swfReady() {
asReady = true;
alert('swf is ready');
} </script> |
And, then, I add onload="pageInit()" at the document's body tag. At as3 side, I keep checking for js connection by calling the above functions:
// checking for javascript communcation
private function jsReady():Boolean {
if (ExternalInterface.available) {
this._jsOK = ExternalInterface.call("isReady");
// if javascript is not ready, call this function again at a later time
if (!this._jsOK) {
this._jsTimer = new Timer(1000);
this._jsTimer.addEventListener(TimerEvent.TIMER_COMPLETE, jsLaterCheck);
this._jsTimer.start();
} else {
// set callback functions
this.setJSCallback();
}
}
return (this._jsOK);
}
// checking again for javascript
private function jsLaterCheck(evt:TimerEvent = null):void {
this._jsTimer.stop();
this._jsTimer.removeEventListener(TimerEvent.TIMER_COMPLETE, jsLaterCheck);
this._jsTimer = null;
this.jsReady();
}
// exposing functions to javascript
private function setJSCallback():void {
ExternalInterface.call("swfReady");
ExternalInterface.addCallback("setFlow", jsSetFlow);
}
// calling a flow by javascript
public function jsSetFlow(to:String):void {
// do something
} |
At this code, I call jsReady() so it start looking for js connection (retrying if necessary).
When I use this and load the result on Firefox or Chrome everything goies well and the browser shows the alerts. If I try to call the exposed funtion it runs perfectly. However, IE 8 became my nightmare since nothing happens... Just the first alert (page init) is shown, what means that no communication is archived. I confirm this by trying to call the exposed function without success...
I'm embedding the swf file into the html page with Adobe's "AC_FL_RunContent". I add the following params to it: id, name and allowScriptAccess (set to always).
What am I doing wrong? Is there something specific to IE 8 that I must do to expose as3 functions?
Thank you.
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