Bug 263461

Summary:	synthesizedBaseline uses incorrect line under edge for vertical-lr and sideways items
Product:	WebKit	Reporter:	Sammy Gill <sgill26>
Component:	Layout and Rendering	Assignee:	Sammy Gill <sgill26>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://github.com/web-platform-tests/wpt/pull/42671

Description Sammy Gill 2023-10-20 12:15:42 PDT

https://drafts.csswg.org/css-align-3/#baseline-export
https://drafts.csswg.org/css-writing-modes-4/#line-under

The "line under" edge should be item's block start edge in this scenario

Comment 1 Radar WebKit Bug Importer 2023-10-20 12:15:59 PDT

<rdar://problem/117273063>

Comment 2 Sammy Gill 2023-10-20 12:24:03 PDT

Pull request: https://github.com/WebKit/WebKit/pull/19356

Comment 3 Sammy Gill 2023-10-20 12:26:47 PDT

Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/42671

Comment 4 EWS 2023-10-23 14:36:30 PDT

Committed 269668@main (bc94fc496ea9): <https://commits.webkit.org/269668@main>

Reviewed commits have been landed. Closing PR #19356 and removing active labels.