Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 2b1d3c03ed716d5f0c81989398b8deaaada4db40
https://github.com/WebKit/WebKit/commit/2b1d3c03ed716d5f0c81989398b8deaaada4db40
Author: Kiet Ho <kiet...@apple.com>
Date: 2025-09-16 (Tue, 16 Sep 2025)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar-expected.txt
A
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar.html
M
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-borders-002-expected.txt
A
LayoutTests/platform/ios/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar-expected.txt
M Source/WebCore/style/AnchorPositionEvaluator.cpp
Log Message:
-----------
[css-anchor-position-1] Account for left scrollbar when calculating anchor
position
rdar://155852237
https://bugs.webkit.org/show_bug.cgi?id=295964
Reviewed by Elika Etemad.
If an anchor is in a RTL containing block (horizontal right-to-left,
or vertical-rl), the scrollbar of the containing block is on the left.
In that case, adjust the calculated position of the anchor to account
for the left scrollbar
Test:
imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar.html
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar-expected.txt:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar.html:
Added.
- Add test to test anchor in scroller with left-hand-side scrollbar
(e.g in horizontal RTL or vertical-rl writing mode)
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-borders-002-expected.txt:
*
LayoutTests/platform/ios/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-in-scroller-with-left-side-scrollbar-expected.txt:
Added.
- Add expectation for iOS only. Test is failing in vertical-rl writing mode.
Tracked at https://bugs.webkit.org/show_bug.cgi?id=298893.
* Source/WebCore/style/AnchorPositionEvaluator.cpp:
(WebCore::Style::AnchorPositionEvaluator::computeAnchorRectRelativeToContainingBlock):
(WebCore::Style::computeInsetValue):
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