Bug 149535 – Paint artifacts when hovering on http://jsfiddle.net/Sherbrow/T87Mn/

• Status: RESOLVED
• Resolution: FIXED
• Component: Layout and Rendering

[Elliott Sprehn]

Created attachment 261881 [details]
Screenshot

WebKit nightly build: Version 8.0.8 (10600.8.9, r190200)

1. Load http://jsfiddle.net/Sherbrow/T87Mn/
2. Hover over the p{number} items from top to bottom.

This leaves behind artifacts that look like the paint invalidation is missing.

[Elliott Sprehn]

Created attachment 261883 [details]
Repaint reduction

[Alexey Proskuryakov]

Also happens with pristine Safari 8.0.8, so not a recent regression.

[Radar WebKit Bug Importer]

<rdar://problem/22874920>

[zalan]

Created attachment 262551 [details]
Patch

[Simon Fraser (smfr)]

Comment on attachment 262551 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=262551&action=review

> Source/WebCore/ChangeLog:11
> +        When a renderer has a self painting layer, the parent stops tracking the child's 

self-painting

> Source/WebCore/ChangeLog:13
> +        However when this layer gets destroyed, no one issues repaint to clean up

no-one

[zalan]

Created attachment 262554 [details]
Patch

[zalan]

Created attachment 262555 [details]
Patch

[Build Bot]

Comment on attachment 262555 [details]
Patch

Attachment 262555 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/252014

New failing tests:
fast/repaint/absolute-position-change-containing-block.html
css3/blending/repaint/blend-mode-isolate-stacking-context.html

[Build Bot]

Created attachment 262558 [details]
Archive of layout-test-results from ews102 for mac-mavericks

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews102  Port: mac-mavericks  Platform: Mac OS X 10.9.5

[Build Bot]

Comment on attachment 262555 [details]
Patch

Attachment 262555 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/252021

New failing tests:
fast/repaint/absolute-position-change-containing-block.html
css3/blending/repaint/blend-mode-isolate-stacking-context.html

[Build Bot]

Created attachment 262559 [details]
Archive of layout-test-results from ews106 for mac-mavericks-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews106  Port: mac-mavericks-wk2  Platform: Mac OS X 10.9.5

[zalan]

Created attachment 262569 [details]
Patch

[WebKit Commit Bot]

Comment on attachment 262569 [details]
Patch

Clearing flags on attachment: 262569

Committed r190658: <http://trac.webkit.org/changeset/190658>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.