Bug 13554 - className change wont cause a repaint in a special case
Summary: className change wont cause a repaint in a special case
Status: RESOLVED INVALID
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 523.x (Safari 3)
Hardware: Mac OS X 10.5
: P2 Major
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-04-30 18:47 PDT by Timothy Hatcher
Modified: 2008-03-24 16:02 PDT (History)
2 users (show)

See Also:

Attachments
Test case. (1.36 KB, text/html)
2007-04-30 18:48 PDT, Timothy Hatcher 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Timothy Hatcher 2007-04-30 18:47:34 PDT 
While working on a Web Inspector change I ran into this bug.

Changing a className between two elements with a mousedown on one element removes the className value on another element. The other element will not repaint when it's className is removed. This only happens when mousedown, -webkit-user-select: none, background-image and font-weight: bold are used together. If you change or remove any of those elemnts, this bug goes away. For example, removing -webkit-user-select: none fixes this. Removing either bold or background-image fixes this. Changing background-image to just a background color also fixes this.

See attached test case.
Comment 1 Timothy Hatcher 2007-04-30 18:48:46 PDT 
Created attachment 14278 [details]
Test case.

Test case showing the bug.
Comment 2 Timothy Hatcher 2007-04-30 18:50:13 PDT 
I have seen this in Drosera before too, I just never could create a "simple" test case.
Comment 3 Dave Hyatt 2007-04-30 19:37:40 PDT 
Probably a style sharing bug and/or some bug where something is missing from the diff method of RenderStyles.
Comment 4 Dave Hyatt 2007-04-30 19:53:12 PDT 
This does not reproduce for me in 2.0 or ToT on Tiger.
Comment 5 Timothy Hatcher 2007-04-30 20:08:34 PDT 
I am able to reproduce on TOT on Leopard. I will file a radar to track this.
Comment 6 Timothy Hatcher 2007-06-05 15:55:33 PDT 
I have seen this bug before in Drosera on Tiger but was never able to find a reproducible case. The original test here was Leopard only.
Comment 7 Timothy Hatcher 2007-06-05 15:56:14 PDT 
I have seen this bug before in Drosera on Tiger but was never able to find a reproducible case. The original test here was Leopard only.
Comment 8 mitz 2008-03-24 16:02:41 PDT 
I cannot reproduce the bug in TOT on Leopard. IIRC, it turned out to be a Leopard bug.