Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4cd6d5756a6477c6a9a3aba8c3afe47b8a882c05
https://github.com/WebKit/WebKit/commit/4cd6d5756a6477c6a9a3aba8c3afe47b8a882c05
Author: Anne van Kesteren <[email protected]>
Date: 2026-04-15 (Wed, 15 Apr 2026)
Changed paths:
M
LayoutTests/imported/w3c/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-repeats-slot-assignment.tentative-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-slot-assignment-serialization.tentative-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-slot-assignment-serialization.tentative.html
M
LayoutTests/imported/w3c/web-platform-tests/shadow-dom/declarative/declarative-shadow-dom-slot-assignment.tentative-expected.txt
M Source/WebCore/dom/Element.cpp
M Source/WebCore/dom/Element.h
M Source/WebCore/dom/ShadowRootMode.h
M Source/WebCore/dom/SlotAssignmentMode.h
M Source/WebCore/editing/MarkupAccumulator.cpp
M Source/WebCore/html/HTMLAttributeNames.in
M Source/WebCore/html/HTMLTemplateElement.cpp
M Source/WebCore/html/HTMLTemplateElement.h
M Source/WebCore/html/HTMLTemplateElement.idl
M Source/WebCore/html/parser/HTMLConstructionSite.cpp
M Source/WebCore/html/parser/HTMLPreloadScanner.cpp
Log Message:
-----------
Implement shadowrootslotassignment attribute
https://bugs.webkit.org/show_bug.cgi?id=310090
rdar://173227340
Reviewed by Darin Adler and Ryosuke Niwa.
This gives web developers the ability to set the slot assignment to
"manual" declaratively. (Slotting will still have to happen through
script in those cases.)
We also clean up the shadowrootmode attribute as it has very similar
requirements.
Test changes upstreamed here:
https://github.com/web-platform-tests/wpt/pull/59210
Canonical link: https://commits.webkit.org/311295@main
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