Bug 22941

Summary: If the documentElement does not paint opaquely, then stuff from the previous page shows through
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: Layout and RenderingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal    
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Mac   
OS: OS X 10.5   
Attachments:
Description Flags
Testcase
none
Patch, testcase, changelog mitz: review+

Simon Fraser (smfr)
Reported 2008-12-19 15:04:13 PST
If the document element has opacity or has a background color with alpha, then stale pixels in the viewport can show through.
Attachments
Testcase (829 bytes, text/html)
2008-12-19 15:04 PST, Simon Fraser (smfr) 		no flags
Details
Patch, testcase, changelog (6.34 KB, patch)
2008-12-23 19:35 PST, Simon Fraser (smfr) 		mitz: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Simon Fraser (smfr)
Comment 1 2008-12-19 15:04:56 PST
Created attachment 26162 [details] Testcase Testcase. Fix should be similar to bug 22938.
Simon Fraser (smfr)
Comment 2 2008-12-19 15:08:53 PST
Actually, the problem does not occur with background-color. Only opacity seems to be problematic.
Simon Fraser (smfr)
Comment 3 2008-12-23 19:35:34 PST
Created attachment 26231 [details] Patch, testcase, changelog
Simon Fraser (smfr)
Comment 4 2008-12-23 21:23:59 PST
Committing to http://svn.webkit.org/repository/webkit/trunk ... M LayoutTests/ChangeLog A LayoutTests/fast/backgrounds/opacity-on-document-element.html M LayoutTests/fast/transforms/identity-matrix.html A LayoutTests/platform/mac/fast/backgrounds/opacity-on-document-element-expected.checksum A LayoutTests/platform/mac/fast/backgrounds/opacity-on-document-element-expected.png A LayoutTests/platform/mac/fast/backgrounds/opacity-on-document-element-expected.txt M LayoutTests/platform/mac/fast/transforms/identity-matrix-expected.txt M WebCore/ChangeLog M WebCore/rendering/RenderView.cpp Committed r39463
Note You need to log in before you can comment on or make changes to this bug.