Bug 103680

Summary: [CSS Regions] Text flickers outside of regions when resizing
Product: WebKit Reporter: Rebecca Hauck <rhauck>
Component: Layout and RenderingAssignee: Andrei Bucur <abucur>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: abucur, mibalan, WebkitBugTracker
Priority: P2 Keywords: AdobeTracked
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 57312    
Attachments:
Description Flags
test case to reproduce bug none

Rebecca Hauck
Reported 2012-11-29 15:46:51 PST
Found in Version 25.0.1335.0 canary 1. Open the attached test file in the browser 2. Resize the window by dragging the bottom right corner (happens more reliably when you resize both horizontally & vertically at the same time, but I've seen it when doing just one direction at once, too) Result: The text momentarily flickers outside of the rightmost region while re-wrapping
Attachments
test case to reproduce bug (3.75 KB, text/html)
2012-11-29 15:47 PST, Rebecca Hauck 		no flags
Details
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Rebecca Hauck
Comment 1 2012-11-29 15:47:48 PST
Created attachment 176839 [details] test case to reproduce bug
Andrei Bucur
Comment 2 2012-12-06 02:26:42 PST
The text overflowing the right region doesn't seem to repro after http://trac.webkit.org/changeset/136793 However, what looks to be a flicker is the text in the right column "bouncing" vertically by 1/2 pixels when resizing the window. Is this a different bug?
Rebecca Hauck
Comment 3 2012-12-10 13:06:30 PST
I'm no longer seeing it flicker like I did before. I do see the slight bouncing in the right pink region though. Should that be logged as separate bug?
Andrei Bucur
Comment 4 2012-12-10 13:33:09 PST
(In reply to comment #3) > I'm no longer seeing it flicker like I did before. I do see the slight bouncing in the right pink region though. Should that be logged as separate bug? Yes. This can be either a subpixel layout problem or we don't do margin collapsing right at region breaks.
Andrei Bucur
Comment 5 2012-12-12 09:09:02 PST
(In reply to comment #4) > (In reply to comment #3) > > I'm no longer seeing it flicker like I did before. I do see the slight bouncing in the right pink region though. Should that be logged as separate bug? > > Yes. This can be either a subpixel layout problem or we don't do margin collapsing right at region breaks. I've submitted a new bug: https://bugs.webkit.org/show_bug.cgi?id=104816 *** This bug has been marked as a duplicate of bug 103993 ***
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