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Yehuda Shiran May 3, 2001
Checking Loaded Percentage of a SWF
Tips: May 2001

Yehuda Shiran, Ph.D.
Doc JavaScript

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 The FlashSound JavaScript API's PercentLoaded() method returns the percent of the swf loaded into the browser. Values are between 0 and 100. I have yet to come across a SWF ("swiff") that will return a value that is smaller than 100 after embedding it in a Web page, including stream sync tracks.

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

  • Make sure you have the Flash player. 96% of the surfing population already has it. Download.
  • Include 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 PercentLoaded() before embedding the tutorial, and one that prints its value after embedding the tutorial SWF. Notice that the value of PercentLoaded() is 0 before embedding, and 100 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, PercentLoaded() returns " +  
    mySoundObj.PercentLoaded());
  mySoundObj.autostart = false;
  mySoundObj.embedSWF("earsonly.swf");
  alert("After Embedding, PercentLoaded() returns " + 
    mySoundObj.PercentLoaded());
</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

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