Bug 161509 – REGRESSION (r200283): Transform, overflow hidden and filter combination completely hides the element

• Component: CSS
• Status: RESOLVED FIXED

Created attachment 287673 [details]
overflow-transform-filter-bug-demo.html

A combination of transform property on a parent element, with an overflow: hidden and filter properties on the child, causes the child to be entirely invisible.

See either the attached html or the following jsbin for demonstration http://jsbin.com/botekiradu/1/edit?html,css,output.

Bugs present in Safari Tech Preview Release 12 (Safari 9.1.2, WebKit 11603.1.3) and iOS 10 betas.

This seems like a regression as the issue isn't present in the current stable release of Safari or iOS9.

[Radar WebKit Bug Importer]

<rdar://problem/28130271>

[Simon Fraser (smfr)]

Regressed in r200283

[Simon Fraser (smfr)]

This bit is wrong:
paintDirtyRect = selfClipRect();

[Simon Fraser (smfr)]

Created attachment 296825 [details]
Patch

[Dave Hyatt]

Comment on attachment 296825 [details]
Patch

r=me

[WebKit Commit Bot]

The commit-queue encountered the following flaky tests while processing attachment 296825 [details]:

inspector/codemirror/prettyprinting-javascript.html bug 165738 (authors: [e-mail] and [e-mail])
The commit-queue is continuing to process your patch.

[WebKit Commit Bot]

The commit-queue encountered the following flaky tests while processing attachment 296825 [details]:

The commit-queue is continuing to process your patch.

[Build Bot]

Comment on attachment 296825 [details]
Patch

Attachment 296825 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/2691787

New failing tests:
imported/blink/css3/filters/effect-drop-shadow-clip-abspos.html

[Build Bot]

Created attachment 296828 [details]
Archive of layout-test-results from ews100 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews100  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 296825 [details]
Patch

Attachment 296825 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/2691789

New failing tests:
imported/blink/css3/filters/effect-drop-shadow-clip-abspos.html

[Build Bot]

Created attachment 296829 [details]
Archive of layout-test-results from ews106 for mac-yosemite-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews106  Port: mac-yosemite-wk2  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 296825 [details]
Patch

Attachment 296825 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2691780

New failing tests:
imported/blink/css3/filters/effect-drop-shadow-clip-abspos.html

[Build Bot]

Created attachment 296830 [details]
Archive of layout-test-results from ews112 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews112  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 296825 [details]
Patch

Attachment 296825 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: http://webkit-queues.webkit.org/results/2691800

New failing tests:
imported/blink/css3/filters/effect-drop-shadow-clip-abspos.html

[Build Bot]

Created attachment 296831 [details]
Archive of layout-test-results from ews123 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews123  Port: ios-simulator-wk2  Platform: Mac OS X 10.11.6

[Simon Fraser (smfr)]

Created attachment 296890 [details]
Patch for EWS

[WebKit Commit Bot]

Comment on attachment 296890 [details]
Patch for EWS

Clearing flags on attachment: 296890

Committed r209697: <http://trac.webkit.org/changeset/209697>

[Simon Fraser (smfr)]

http://trac.webkit.org/changeset/209697