Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6cd7aec936678f8164131163770ae1f213bd10a9
https://github.com/WebKit/WebKit/commit/6cd7aec936678f8164131163770ae1f213bd10a9
Author: Elika Etemad <fantasai.b...@inkedblade.net>
Date: 2025-09-17 (Wed, 17 Sep 2025)
Changed paths:
M
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-multicol-002.html
M
LayoutTests/imported/w3c/web-platform-tests/css/cssom/getComputedStyle-insets-fixed-expected.txt
M Source/WebCore/rendering/RenderElement.cpp
Log Message:
-----------
Return fixedpos containing block (if any) for a fixedpos's offsetParent
https://bugs.webkit.org/show_bug.cgi?id=212372
rdar://63739636
Reviewed by Simon Fraser.
Sometimes an element (such as a transformed element) that is not the viewport
forms the containing block of fixed positioned descendants. In this case,
offsetParent should return that box.
See spec: https://www.w3.org/TR/cssom-view/#dom-htmlelement-offsetparent
*
LayoutTests/imported/w3c/web-platform-tests/css/cssom/getComputedStyle-insets-fixed-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-anchor-position/anchor-position-multicol-002.html:
* Source/WebCore/rendering/RenderElement.cpp:
(WebCore::RenderElement::offsetParent const):
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