Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 205c87dbf7f2977fd05411a3a5a02ff292988706
https://github.com/WebKit/WebKit/commit/205c87dbf7f2977fd05411a3a5a02ff292988706
Author: Sam Weinig <[email protected]>
Date: 2026-02-18 (Wed, 18 Feb 2026)
Changed paths:
M
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-shorthand-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-shorthand.html
M
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/view-timeline-shorthand-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/view-timeline-shorthand.html
M Source/WebCore/css/ShorthandSerializer.cpp
M Source/WebCore/style/StyleExtractorCustom.h
M Source/WebCore/style/values/primitives/StyleCoordinatedValueListValue.h
Log Message:
-----------
Fix serializations of scroll-timeline/view-timeline shorthand computed values
https://bugs.webkit.org/show_bug.cgi?id=308068
Reviewed by Darin Adler.
Per discussion in https://github.com/w3c/csswg-drafts/issues/13500, the empty
string is the correct serialization for coordinated list property shorthands
that:
- have more than one item
- have at least one longhand that doesn't set a value for every item
This implements that rule for scroll-timeline/view-timeline, which makes us
match Firefox and Chrome. The remaining coordinated list properties will be
worked on separately.
*
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-shorthand-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/scroll-timeline-shorthand.html:
*
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/view-timeline-shorthand-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/scroll-animations/css/view-timeline-shorthand.html:
* Source/WebCore/css/ShorthandSerializer.cpp:
* Source/WebCore/style/StyleExtractorCustom.h:
* Source/WebCore/style/values/primitives/StyleCoordinatedValueListValue.h:
Canonical link: https://commits.webkit.org/307783@main
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