Bug 44163 - SVG repaint issues with CSS shadows in combination with CSS transitions
Summary: SVG repaint issues with CSS shadows in combination with CSS transitions
Status: RESOLVED CONFIGURATION CHANGED
Alias: None
Product: WebKit
Classification: Unclassified
Component: SVG (show other bugs)
Version: 528+ (Nightly build)
Hardware: PC OS X 10.5
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-08-18 03:54 PDT by Dirk Schulze
Modified: 2023-05-19 18:19 PDT (History)
3 users (show)

See Also:

Attachments
Test for repaint issues (481 bytes, image/svg+xml)
2010-08-18 03:54 PDT, Dirk Schulze 		no flags Details
Test with text-shadow (453 bytes, image/svg+xml)
2010-08-18 04:02 PDT, Dirk Schulze 		no flags Details
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Description Dirk Schulze 2010-08-18 03:54:30 PDT 
Created attachment 64685 [details]
Test for repaint issues

The first point is, that -webkit-svg-shadow together with CSS Transitions does not result in a smooth animation (maybe because of a missing entry in AnimationBase.cpp? see bug 21586).

Transisitions of -webkit-svg-shadow as well as text-shadow cause repaint issues. See attached example. The shadow doesn't get cleared correctly on moving the mouse over the text and back.
Comment 1 Dirk Schulze 2010-08-18 04:02:53 PDT 
Created attachment 64687 [details]
Test with text-shadow
Comment 2 Dirk Schulze 2010-08-18 04:08:41 PDT 
The problem with the first example may just not occur in Safari, caused by a different handling of shadows in CG.
Comment 3 Ahmad Saleem 2023-05-19 18:19:32 PDT 
I am not able to reproduce issue of repaint by causing mouse hover on 'Test with text-shadow' in Safari 16.5 and it is same as "Chrome Canary 115", I think we can close this old bug now.

Marking this as "RESOLVED CONFIGURATION CHANGED", please reopen if it is reproducible.