Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: cb80e57398c2e145c8b94651e59f99cb40404cab
https://github.com/WebKit/WebKit/commit/cb80e57398c2e145c8b94651e59f99cb40404cab
Author: Matt Woodrow <mattwood...@apple.com>
Date: 2025-03-25 (Tue, 25 Mar 2025)
Changed paths:
A LayoutTests/fast/layout/relayout-boundary-inside-flex-expected.html
A LayoutTests/fast/layout/relayout-boundary-inside-flex.html
A LayoutTests/fast/layout/relayout-boundary-inside-inline-expected.html
A LayoutTests/fast/layout/relayout-boundary-inside-inline.html
M Source/WebCore/rendering/RenderObject.cpp
Log Message:
-----------
objectIsRelayoutBoundary doesn't account for baseline changes across the
boundary.
https://bugs.webkit.org/show_bug.cgi?id=290359
<rdar://147799932>
Reviewed by Alan Baradlay.
Being an independent formatting context isn't sufficient to be a layout
boundary, as placement within the formatting context can affect the baseline
positioning of things outside.
We need to prevent these being treated as boundaries if they are inside an
formatting context that uses baselines.
Caches the lookup of nearest ancestor baseline formatting context to prevent
extra
ancestor walks during markContainingBlocksForLayout.
* LayoutTests/fast/layout/relayout-boundary-inside-flex-expected.html: Added.
* LayoutTests/fast/layout/relayout-boundary-inside-flex.html: Added.
* LayoutTests/fast/layout/relayout-boundary-inside-inline-expected.html: Added.
* LayoutTests/fast/layout/relayout-boundary-inside-inline.html: Added.
* Source/WebCore/rendering/RenderObject.cpp:
(WebCore::nearestBaselineContextAncestor):
(WebCore::objectIsRelayoutBoundary):
(WebCore::RenderObject::markContainingBlocksForLayout):
Canonical link: https://commits.webkit.org/292662@main
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