Hello,
I've probably found a strange bug in jQuery 1.2 and 1.2.1, which
creates high CPU usage.
To reproduce it just create site like this one:
<html>
<head>
<script type="text/javascript" src="http://
jqueryjs.googlecode.com/files/jquery-1.2.1.pack.js"></script>
<script type="text/javascript" src="http://dev.iceburg.net/
jquery/jqDnR/jqDnR.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#drawing").jqDrag();
});
</script>
</head>
<body>
<div style="position:relative;left:50px;top:
50px;display:block;background-color:red; width: 50px; height: 50px;"
id="drawing"/>
</body>
</html>
or visit http://rwesolowski.jogger.pl/files/test-1-2.html .
Then drag and drop a few times the red box, and next just move mouse
around the site and watch CPU usage (it's note a problem with jqDnR
plugin, i've tested this with some others, and the result was the
same). When jQuery 1.1.4 is used everything is OK (check
http://rwesolowski.jogger.pl/files/test-1-1.html).
According to the Firebug mousemove event is not released after
dropping, and what's more on each event jQuery calls extend() method.
Radek
