Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 51f2f1647fce9df680d13eec07c489324f1fa415
https://github.com/WebKit/WebKit/commit/51f2f1647fce9df680d13eec07c489324f1fa415
Author: Alan Baradlay <[email protected]>
Date: 2026-04-13 (Mon, 13 Apr 2026)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/css/css-sizing/aspect-ratio-automatic-minimum-expected.txt
A
LayoutTests/imported/w3c/web-platform-tests/css/css-sizing/aspect-ratio-automatic-minimum.html
M Source/WebCore/rendering/RenderBox.cpp
Log Message:
-----------
Non-replaced element with aspect-ratio enforces automatic minimum, even if
explicitly set to 0
https://bugs.webkit.org/show_bug.cgi?id=296243
<rdar://problem/156837730>
Reviewed by Antti Koivisto.
Per CSS Sizing 4 section 5.1 (Automatic Minimum Size), a box with
a preferred aspect ratio uses its min-content size as a floor for
the ratio-dependent axis. But this only applies when min-width is
auto -- the "automatic minimum".
When min-width is explicitly set to 0, the automatic minimum is
disabled (CSS Sizing 3 section 4.5). The content width should come
purely from the aspect ratio transfer (height:0 * ratio = 0).
computeIntrinsicKeywordLogicalWidths unconditionally maxed the
aspect-ratio-derived width with children's intrinsic widths. The
fix gates this on min-width being auto.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-sizing/aspect-ratio-automatic-minimum-expected.txt:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-sizing/aspect-ratio-automatic-minimum.html:
Added.
* Source/WebCore/rendering/RenderBox.cpp:
(WebCore::RenderBox::computeIntrinsicKeywordLogicalWidths):
Canonical link: https://commits.webkit.org/311096@main
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