Bug 104816

Summary: [CSS Regions] Text bounces in regions when resized
Product: WebKit Reporter: Andrei Bucur <abucur>
Component: WebCore Misc.Assignee: Nobody <webkit-unassigned>
Status: RESOLVED WONTFIX    
Severity: Normal CC: bfulgham, mibalan, mihnea, mvujovic, WebkitBugTracker
Priority: P2 Keywords: AdobeTracked
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 57312    
Attachments:
Description Flags
Test case none

Andrei Bucur
Reported 2012-12-12 08:43:38 PST
Created attachment 179056 [details] Test case When resizing a region in the chain, text bounces 1-2 pixels in subsequent regions. See attached test.
Attachments
Test case (3.75 KB, text/html)
2012-12-12 08:43 PST, Andrei Bucur 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Andrei Bucur
Comment 1 2012-12-20 23:16:20 PST
To clarify repro: 1. Slowly resize the window so the middle region gets resized as well 2. Even though the resize delta is too small to have text swap regions, the content in the rightmost region bounces vertically with one or two pixels.
Michelangelo De Simone
Comment 2 2013-06-13 11:55:27 PDT
Works for me on today's nightly (r151543)
Mihai Balan
Comment 3 2013-06-14 05:37:03 PDT
I'd rather have Andrei take another look at it before deciding it got fixed. He's the one that logged the bug and might have more info on it.
Mihai Balan
Comment 4 2013-06-17 01:31:19 PDT
The problem is caused by sub-pixel layout (still reproduces in Canary) and as long as the sub-pixel layout code is still in WebKit (even if it's disabled in the Mac port), the bug should still be open.
Brent Fulgham
Comment 5 2022-07-13 09:25:48 PDT
CSS Regions were removed in Bug 174978.
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