May 7, 2001 - Checking Loading Completion of a SWF

Yehuda Shiran May 7, 2001
Checking Loading Completion of a SWF
Tips: May 2001

Yehuda Shiran, Ph.D.
Doc JavaScript

The FlashSound JavaScript API's TLoaded() method returns whether the swf has been completely loaded into the browser. Values are either false or true. I have yet to come across a SWF ("swiff") that will return false after embedding it in a Web page, including stream sync tracks.

As a reminder, in order to sonify your page, follow this recipe:

flashsound.js in the HEAD section. Download.
  • Create a flashsound object in the
    • HEAD section.
  • Embed your SWF file in the
    • BODY section.
  • Create an anchor tag and set the
    • onmouseover event handler to the TGotoAndPlay() method.

    Click the following link to play a Flash stream track that plays a tutorial on FlashSound. We put two alert statements. One that prints the value of TLoaded() before embedding the tutorial, and one that prints its value after embedding the tutorial SWF. Notice that the value of TLoaded() is falase before embedding, and true after it:

    Play the Tutorial

    Here is the source code:

    <HTML>
<HEAD>
<SCRIPT SRC="flashsound.js"></SCRIPT>
<SCRIPT>
  var mySoundObj = new FlashSound();
</SCRIPT>
</HEAD>
<BODY>
<P><A HREF="javascript://" 
  onmouseover="mySoundObj.TGotoAndPlay('/',1)">Rewind and Play the Tutorial</A>   
  <A HREF="javascript://" 
  onmouseover="mySoundObj.TStopPlay('/')">Pause</A>   
  <A HREF="javascript://" 
  onmouseover="mySoundObj.TPlay('/')">Continue</A>   
  <A HREF="javascript://" 
  onmouseover="alert(mySoundObj.IsPlaying('/'))">Is Playing?</A></P>
<SCRIPT>
  alert("Before Embedding, TLoaded() returns " +  
    mySoundObj.TLoaded());
  mySoundObj.autostart = false;
  mySoundObj.embedSWF("earsonly.swf");
  alert("After Embedding, TLoaded() returns " + 
    mySoundObj.TLoaded());
</SCRIPT>
</BODY>
</HTML>

    Notice we assign autostart to false. The reason is that the stream example here was set to autostart upon embedding. We can override the Flash behavior with JavaScript commands.

    Here are links you can use to download flashsound.js and earsonly.swf:

    Download flashsound.js

    Download earsonly.swf