Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 845882297cd22aeb22135aecf95aebbe4638842a
https://github.com/WebKit/WebKit/commit/845882297cd22aeb22135aecf95aebbe4638842a
Author: Alan Baradlay <[email protected]>
Date: 2026-08-28 (Fri, 28 Aug 2026)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/css/css-text-decor/text-decoration-propagated-ink-overflow-expected.html
A
LayoutTests/imported/w3c/web-platform-tests/css/css-text-decor/text-decoration-propagated-ink-overflow.html
M
Source/WebCore/layout/formattingContexts/inline/display/InlineDisplayContentBuilder.cpp
Log Message:
-----------
[css-text-decor] Negative text-decoration-inset is clipped when the
decoration propagates to a descendant inline box
https://bugs.webkit.org/show_bug.cgi?id=322718
<rdar://problem/185985708>
Reviewed by Antti Koivisto.
collectInkOverflowForTextDecorations() measured each text box's decoration
overflow
from displayBox.layoutBox().parent().style(). The decoration properties are not
inherited, so when a decoration propagates from an ancestor to a descendant
inline box
that immediate parent carries the initial values, and the overflow came out too
small.
The decoration was still painted in the right place - TextBoxPainter walks up
to the
originating box - so it got clipped to the undersized overflow instead.
Test:
imported/w3c/web-platform-tests/css/css-text-decor/text-decoration-propagated-ink-overflow.html
*
LayoutTests/imported/w3c/web-platform-tests/css/css-text-decor/text-decoration-propagated-ink-overflow.html:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-text-decor/text-decoration-propagated-ink-overflow-expected.html:
Added.
*
Source/WebCore/layout/formattingContexts/inline/display/InlineDisplayContentBuilder.cpp:
(WebCore::Layout::InlineDisplayContentBuilder::collectInkOverflowForTextDecorations):
Canonical link: https://commits.webkit.org/320044@main
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