Bug 260081

Summary:	[css-flex][baseline-alignment] RenderFlexibleBox getBaselineChild needs to take into consideration flex line structure
Product:	WebKit	Reporter:	Sammy Gill <sgill26>
Component:	Layout and Rendering	Assignee:	Sammy Gill <sgill26>
Status:	NEW ---
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Sammy Gill 2023-08-11 12:38:48 PDT

https://drafts.csswg.org/css-flexbox-1/#flex-baselines

The current implementation of getBaselineChild does not take into consideration the writing mode or flex direction when determining which flex item to use for the flex container's baseline. This leads to many failures in the css/css-flexbox/alignment/flex-align-baseline-flex-* WPT tests. This bugzilla issue should serve as an umbrella for all of the incremental patches that will be added to rework the function implementation to more closely align to the spec.

Comment 1 Radar WebKit Bug Importer 2023-08-11 12:39:09 PDT

<rdar://problem/113765715>

Comment 2 Sammy Gill 2024-01-02 15:28:01 PST

Renaming the bug to mention that we should be using the flex line structure instead since that's really the central issue in the code