Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: f082dfc9005c6a15d5bf43f6b21c5f4a3f234d53
https://github.com/WebKit/WebKit/commit/f082dfc9005c6a15d5bf43f6b21c5f4a3f234d53
Author: Sam Weinig <[email protected]>
Date: 2026-08-17 (Mon, 17 Aug 2026)
Changed paths:
M LayoutTests/fast/text/line-height-minimumFontSize-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/svg/types/scripted/SVGLength-rem-expected.txt
M Source/WebCore/style/StyleBuilderCustom.h
M Source/WebCore/style/StyleBuilderState.cpp
M Source/WebCore/style/values/primitives/StyleLengthResolution.cpp
Log Message:
-----------
[EvaluationTimeZoom] Use the font's specifiedSize() getter consistently in
length resolution
https://bugs.webkit.org/show_bug.cgi?id=321095
Reviewed by Darin Adler.
Use the computed font size (confusingly named specifiedSize()) rather than the
minimum-font-size adjusted size (confusingly called unzoomedComputedSize())
always
when computing `em`, `rem`, `ex` and `rex` units.
This matches what CSS Values 4 says to do:
"Some user-agents allow users to apply additional restrictions to font sizes
in a
document, such as setting minimum font sizes to ensure readability. Such
restrictions
must be applied to the used value of the affected properties only; they must
not
affect the resolution of font-relative lengths used in properties"
- https://drafts.csswg.org/css-values-4/#font-relative-length
The change whitespace change in line-height-minimumFontSize-expected.txt is due
to the
margins around the description changing (due to 1em now being 16 and not 64px).
The
dump-as-text code uses TextIterator, which has heuristic to add newlines that
is based
on the used margins (see shouldEmitExtraNewlineForNode).
* LayoutTests/fast/text/line-height-minimumFontSize-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/svg/types/scripted/SVGLength-rem-expected.txt:
* Source/WebCore/style/values/primitives/StyleLengthResolution.cpp:
Canonical link: https://commits.webkit.org/319340@main
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