220992 - onmouseover function does not work properly - animated gifs only loop once

Status: RESOLVED DUPLICATE of bug 210001

(Core :: DOM: Events, defect)

Description

[Sven Behling]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030925
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030925

I created a html code with a java part what should show a gif "Gate1". If you
move mouse over this gif it changes to a gif animation "Anim1" which runs one
time until and stops. If you leave this area and move the mouse again to the gif
then the ani starts again. Unfortunately since Mozilla 1.4.x it does not work
anymore. Mozilla 1.5rc2 does work too. Version 1.2.1 works flawless. Windows
version 1.4.x shows same error. IE6.0 and since opera 7.20 it works perfect.

Sorry for german text in the code but the should be clear enough.
--------------------------------------------------------------------------
<script type="text/javascript">
<!--
Gate1 = new Image();
Gate1.src = "gif/navbutton1.gif";     /* first standard-gif */
Anim1 = new Image();
Anim1.src = "gif/navanisw.gif"; /* first Highlight-gif */

function Bildwechsel(Bildnr,Bildobjekt) {
 window.document.images[Bildnr].src = Bildobjekt.src;
}
//-->
</script>

<!-- Button Definition Ende -->
</head>

<div style="position:absolute; top:185px; left:15px;width:40px;">
<a HREF="http://hoogie.dyndns.org/sw/swmain.html" target="main"
   onMouseOver="Bildwechsel(0,Anim1)"
   onMouseOut="Bildwechsel(0,Gate1)"><img src="gif/navbutton1.gif"
   width="120" height="40" border="0" alt="Gate1"></a><br>
</div>
-----------------------------------------------------------------------------


Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Comment 1

[Stephen Donner [:stephend] Not actively reading bugmail]

Attachment: Testcase

Comment 2

[Stephen Donner [:stephend] Not actively reading bugmail]

Attachment: Testcase with fixed absolute URL to /pic dir.

Comment 3

[Stephen Donner [:stephend] Not actively reading bugmail]

-> DOM, because this isn't JavaScript engine.

Comment 4

[Stephen Donner [:stephend] Not actively reading bugmail]

sigh, -> correct owner for triage.

Comment 5

[Alfonso Martinez]

*** Bug 221009 has been marked as a duplicate of this bug. ***

Comment 6

[Boris Zbarsky [:bzbarsky]]

This worksforme with linux trunk builds 2003-09-24-22 and 2003-09-29-22. 
Stephend, can you actually reproduce?  Reporter, you did not switch off toggling
images like this in preferences, did you?

Comment 7

[Stephen Donner [:stephend] Not actively reading bugmail]

I see the GIF image animate only once, ever...(It's been awhile since I've
created animated gifs, but they can have parameters as to looping, yes?)

Comment 8

[Boris Zbarsky [:bzbarsky]]

Oh, I see. The expectation here is that resetting the src will restart the
animation.  That's no longer the case, and may never again be the case,
depending....

*** This bug has been marked as a duplicate of 210001 ***