Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: dd8b5e641c8aa32d1af442bd8a1eaf5141de7b2e
https://github.com/WebKit/WebKit/commit/dd8b5e641c8aa32d1af442bd8a1eaf5141de7b2e
Author: Simon Fraser <simon.fra...@apple.com>
Date: 2025-02-25 (Tue, 25 Feb 2025)
Changed paths:
M Source/WebCore/rendering/BackgroundPainter.cpp
M Source/WebCore/rendering/BorderShape.cpp
M Source/WebCore/rendering/BorderShape.h
Log Message:
-----------
Use BorderShape for rendering inner box shadows
https://bugs.webkit.org/show_bug.cgi?id=288443
rdar://145532909
Reviewed by Antti Koivisto.
Inset box-shadow painting had some assumptions about shapes being rounded rects
that get broken
with `corner-shape`, so migrate it to using BorderShape.
The code computes a new BorderShape where the outer rect is the border box, and
the inner rect
represents the size of the shadow "hole" (i.e. the edge of the blurred area).
It expands out
the non-present edges so that shadows on those edges get clipped out (this
expanding used to
be done on the hole rect, but we can equivalently do it on the outer rect).
Finally we add BorderShape::fillRectWithRoundedHole() in preparation to later
deal with
non-rounded-rect holes.
* Source/WebCore/rendering/BackgroundPainter.cpp:
(WebCore::BackgroundPainter::paintBoxShadow const):
(WebCore::areaCastingShadowInHole): Deleted.
* Source/WebCore/rendering/BorderShape.cpp:
(WebCore::BorderShape::move): Drive-by fix: if we move the outer rect, we need
to move the cached inner rect.
(WebCore::BorderShape::inflate): Drive-by fix: if we inflate the outer rect, we
need to recompute the inner rect.
(WebCore::BorderShape::fillRectWithInnerHoleShape const):
(WebCore::BorderShape::innerEdgeRect const): Deleted.
* Source/WebCore/rendering/BorderShape.h:
(WebCore::BorderShape::innerEdgeRect const):
Canonical link: https://commits.webkit.org/291055@main
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