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This must be a recent bug. When I try this example
with my slightly modified version of 1.0, the first two example hold their
selected values. (the third test doesn't work at all. I assume that this is
because of a bug that has been fixed.) When I use 1.02, the first two break as
you have noted.
Is there a place that 1.0 and 1.01 can be
downloaded? (I don't have the ability to get it from SVN) These older
versions could provide clues as to an easy fix.
----- Original Message -----
Sent: Tuesday, October 17, 2006 6:41
PM
Subject: [jQuery] Radio button bug
I've found a rather tricky bug in jQuery 1.0.2. When you use
an
animated slideDown() or show() on an element containing one or
more
radio buttons, the radio buttons lose their selection status
in
Firefox (1.5 and 2.0 for sure, maybe others), and Opera 9
(maybe
others). It works fine in IE6 and Safari 2. This also only
seems to
happen when you apply an animation for the first
time.
I have attached a minimal test case to reproduce. There are
four
pairs of radiobuttons, each having one radio button selected.
Their
source markup is functionally identical. Clicking the provided
link
runs a different animation on each radio button pair: the first
two
pairs of radio buttons lose their selection, the last two work
fine.
This is caused by the code in jQuery.css() used to measure
the
dimensions of elements that are hidden. jQuery temporarily
replicates
the element inside its parent. This causes two selected
radio buttons
with the same 'name' to appear in the form, which is
not allowed. It
seems that Firefox and Opera defensively remove both
selections in
this case.
One fix is to simply remove the
checked attributes of all radio
buttons inside the clone, before
inserting it into the parent. See
attached patch.
This is a
major blocker for jQuery in Drupal by the way, as it can
break any
animated portion of a form. I'm going to patch our included
copy
after you guys review this patch (we have a release candidate
coming
up next monday), but it would be nice to see this fixed in a
1.0.3
release soon ;).
Steven Wittens
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