Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 9aec53920a161fa725028326b5fa0b456585c02c
https://github.com/WebKit/WebKit/commit/9aec53920a161fa725028326b5fa0b456585c02c
Author: Megan Gardner <[email protected]>
Date: 2026-07-20 (Mon, 20 Jul 2026)
Changed paths:
M LayoutTests/TestExpectations
M Source/WebCore/rendering/TextBoxPainter.cpp
Log Message:
-----------
[Selection] Paint the selection background as a separate overlay instead of
merging it with other highlight backgrounds.
https://bugs.webkit.org/show_bug.cgi?id=319848
rdar://182745407
Reviewed by Abrar Rahman Protyasha and Wenson Hsieh.
TextBoxPainter::paintBackgroundFill added the selection to the same marked-text
set as document markers and custom highlights,
so the selection background was coalesced and pre-blended with them in software
rather than composited on top. Paint the
marker/highlight backgrounds first and the selection as a separate overlay fill
(selection is the topmost highlight overlay),
so its color composites correctly.
imported/w3c/web-platform-tests/css/css-pseudo/active-selection-011.html
imported/w3c/web-platform-tests/css/css-pseudo/active-selection-016.html
imported/w3c/web-platform-tests/css/css-pseudo/highlight-cascade/highlight-currentcolor-painting-text-shadow-001.html
* LayoutTests/TestExpectations:
* Source/WebCore/rendering/TextBoxPainter.cpp:
(WebCore::TextBoxPainter::paintBackgroundFill):
Canonical link: https://commits.webkit.org/317580@main
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