Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: c6bf5162417d2d0a977fb6702325c940aa7b839f
https://github.com/WebKit/WebKit/commit/c6bf5162417d2d0a977fb6702325c940aa7b839f
Author: Alan Baradlay <[email protected]>
Date: 2026-10-01 (Thu, 01 Oct 2026)
Changed paths:
M LayoutTests/TestExpectations
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/animation/calc-size-width-interpolation-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/animation/interpolate-size-width-composition-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/animation/interpolate-size-width-interpolation-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/calc-size-flex-basis-on-row-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/calc-size-width-box-sizing-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/calc-size-width-expected.txt
M Source/WebCore/rendering/RenderBlock.cpp
M Source/WebCore/rendering/RenderBox.cpp
M Source/WebCore/rendering/RenderBox.h
Log Message:
-----------
[css-values-5 calc-size()] Add support for an auto basis in the inline axis
https://bugs.webkit.org/show_bug.cgi?id=324500
<rdar://problem/187741015>
Reviewed by Antti Koivisto.
<div style="width: 500px">
<div style="width: calc-size(auto, size * 0.6 + 23px)">…</div>
</div>
`auto` on an in-flow block is the available width, 500px, so `size` is 500px
and the box is 323px.
* Source/WebCore/rendering/RenderBox.cpp:
(WebCore::RenderBox::computeLogicalWidthUsingGeneric const):
(WebCore::RenderBox::computeCalcSizeOnAutoLogicalWidth const):
Resolves the calculation against the width the box would otherwise have taken,
clamping that width
itself for a shrink-to-fit box: minContentLogicalWidthContribution() and its
maximum are the result of the calculation, so they would bring it in twice.
* Source/WebCore/rendering/RenderBox.h:
* Source/WebCore/rendering/RenderBlock.cpp:
(WebCore::RenderBlock::computeIntrinsicLogicalWidthContributions): An auto
basis contributes like a fit-content one, each contribution keeping its own
intrinsic width.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/calc-size-width-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/calc-size-width-box-sizing-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/calc-size-flex-basis-on-row-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/animation/calc-size-width-interpolation-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/animation/interpolate-size-width-composition-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/css/css-values/calc-size/animation/interpolate-size-width-interpolation-expected.txt:
* LayoutTests/TestExpectations:
Canonical link: https://commits.webkit.org/322441@main
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