how to pass value from java script to embedded flex object?

Question

how to pass value from java script to embedded flex object?

1.6k views Asked by user270398 At 19 February 2011 at 14:35

I am trying to figure how to pass string value(url) from html form to embedded flex object. the only method i found so far is "addCallback" method described in http://livedocs.adobe.com/flex/3/html/help.html?content=passingarguments_5.html In the example i used flex function "myFunc(s:String)" is registered with "ExternalInterface" and called later from javascript

--->mySwf.mxml:

<?xml version="1.0"?>
<!-- wrapper/AddCallbackExample.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="initApp()">
  <mx:Script>
     import flash.external.*;
      import mx.controls.Alert;
     public function initApp():void {
        ExternalInterface.addCallback("myFlexFunction",myFunc);
     }  
     public function myFunc(s:String):void {

         Alert.show(s, 'Alert Box', mx.controls.Alert.OK);
     }

  </mx:Script>
  <mx:Button id="myButton" 
        label="FLEX BUTTON" 
        click="Alert.show('FLEX LOADED!', 'Alert Box', mx.controls.Alert.OK);"/>
  <mx:Label id="l1"/>

</mx:Application>

external.html

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<SCRIPT LANGUAGE="JavaScript">
    function callApp() {

        mySwf.myFlexFunction("show me something");
    }
</SCRIPT>


<form id="f1">
    <button onClick="callApp()">HTML BUTTON</button>
</form>

<OBJECT CLASSID="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
WIDTH="850"
HEIGHT="610"
CODEBASE="http://active.macromedia.com/flash5/cabs/swflash.cab#version=5,0,0,0">
<EMBED SRC="mySwf.swf"
WIDTH="850"
HEIGHT="610"
PLAY="true" 
LOOP="true"
QUALITY="high" 
scale="noborder"
PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"> 
</EMBED>
</OBJECT>
</html>

The method doesn't seem to be working at all. If I push Flex button - i can see Flex popup dialog. When I push HTML button, calling myFunc in Flex via ExternalInterface - nothing
happens... Any pointers to errors in my code? Thank you,

Original Q&A

There are 1 answers

**KJYe.Name** · Accepted Answer · 2011-02-19 14:58:21

Try this in case you aren't using the right browser:

<SCRIPT LANGUAGE="JavaScript">
    // This function returns the appropriate reference, 
    // depending on the browser.
    function getFlexApp(appName)
    {
      if (navigator.appName.indexOf ("Microsoft") !=-1)
      {
        return window[appName];
      } 
      else 
      {
        return document[appName];
      }
    }

    function callApp() {
        getFlexApp('mySwf').myFunc("show me something");
    }

</SCRIPT>

also you did not give an id to your object which is how the DOM identifies

<OBJECT id='mySwf' CLASSID="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000">

try this:

ExternalInterface.addCallback("myFunc",myFunc);

TechQA.

how to pass value from java script to embedded flex object?

--->mySwf.mxml:

external.html

There are 1 answers

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