Bug 34012 - Use software animation for composited elements with fixed position descendants
Summary: Use software animation for composited elements with fixed position descendants
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Mac OS X 10.5
: P2 Normal
Assignee: Simon Fraser (smfr)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-01-22 11:34 PST by Simon Fraser (smfr)
Modified: 2010-01-22 13:51 PST (History)
0 users

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Description Simon Fraser (smfr) 2010-01-22 11:34:20 PST
As described in bug 33821 comment 9, we need to use software animation for composited layers with any fixed position descendants.
Comment 1 Simon Fraser (smfr) 2010-01-22 13:51:29 PST
Actually maybe we don't need to do this. If transform is animating, then the ancestor is a fixed position container. If opacity is animating, then the behavior is correct.

However, if we hardware-animate left and top we'll have to fix this.