Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 98e98755a83541128db112e56f16b1b58b7445ab
https://github.com/WebKit/WebKit/commit/98e98755a83541128db112e56f16b1b58b7445ab
Author: Elika Etemad <[email protected]>
Date: 2025-10-08 (Wed, 08 Oct 2025)
Changed paths:
M LayoutTests/TestExpectations
A
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll-002-expected.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll-002.html
M
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll.html
M Source/WebCore/style/AnchorPositionEvaluator.cpp
Log Message:
-----------
Update position-visibility: no-overflow invisibility in response to scrolling
https://bugs.webkit.org/show_bug.cgi?id=300373
rdar://162173481
Reviewed by Antti Koivisto.
Updates the AnchorScrollAdjuster to also track limits for position-visibility:
no-overflow (which happen to be the same as for fallback restyling), and sets
up appropriate invalidation.
Test:
imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll-002.html
* LayoutTests/TestExpectations:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll-002-expected.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll-002.html:
Copied from
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll.html.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/position-visibility-no-overflow-scroll.html:
Add new test to cover the position-area case.
https://github.com/web-platform-tests/wpt/pull/55295
Fix error in the existing anchor() test.
https://github.com/web-platform-tests/wpt/pull/55294
Mark existing anchor() test as passing.
* Source/WebCore/style/AnchorPositionEvaluator.cpp:
(WebCore::Style::AnchorPositionEvaluator::captureScrollSnapshots):
Capture limits for no-oveflow case as well.
(WebCore::Style::AnchorPositionEvaluator::updateScrollAdjustments):
Distinguish fallback vs no-overflow cases and invalidate accordingly.
Canonical link: https://commits.webkit.org/301211@main
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