Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 956aa60e55335b75a3d3968936750ee20a35be8e
      
https://github.com/WebKit/WebKit/commit/956aa60e55335b75a3d3968936750ee20a35be8e
  Author: Sammy Gill <[email protected]>
  Date:   2026-07-15 (Wed, 15 Jul 2026)

  Changed paths:
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-gfc-001-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-gfc-001-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-grid/alignment/grid-self-alignment-baseline-gfc-001.html
    M Source/WebCore/layout/integration/grid/LayoutIntegrationGridCoverage.cpp

  Log Message:
  -----------
  [GFC][Integration] Grids cannot contribute baselines currently
https://bugs.webkit.org/show_bug.cgi?id=319512
rdar://182319810

Reviewed by Alan Baradlay.

The grid formatting context integration cannot produce a baseline for a
grid yet, so grid layout coverage already bails out of GFC for
inline-grid, which needs to contribute a baseline to its parent's inline
layout.

A grid is also asked for its baseline when it is itself an item whose
resolved self-alignment is a baseline value (first or last). Extend the
coverage check to avoid GFC when the grid's resolved justify-self (inline
axis) or align-self (block axis) is a baseline position.

Canonical link: https://commits.webkit.org/317257@main



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