Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 763d795e62dca6e1e460b8c71e4b1b1570c2241a
https://github.com/WebKit/WebKit/commit/763d795e62dca6e1e460b8c71e4b1b1570c2241a
Author: Yulun Wu <[email protected]>
Date: 2026-08-04 (Tue, 04 Aug 2026)
Changed paths:
M Source/WebCore/layout/formattingContexts/grid/TrackSizingAlgorithm.cpp
Log Message:
-----------
[GFC] Distribute extra space up to or beyond track limits
https://bugs.webkit.org/show_bug.cgi?id=320925
<rdar://183958176>
Reviewed by Alan Baradlay.
This PR adds logic for space distribution beyond limits in CSS Grid ยง11.5.1,
step 2.4
https://drafts.csswg.org/css-grid-1/#extra-space
We are adding an enum, SpaceDistributionLimit, to {finish}
indexesForUnfrozenAffectedTracks now directly returns the spannedAffectedTracks
when distribution space beyond the growth limit and skip filtering tracks based
on their freeze limit for SpaceDistributionLimit::BeyondGrowthLimit.
distributeSpaceEquallyAmongTracks also directly distributes
(space / tracksRemainingForDistributionCount) space to the affected track
instead of clamping it to the spaceRemainingUntilLimit when under
SpaceDistributionLimit::BeyondGrowthLimit.
* Source/WebCore/layout/formattingContexts/grid/TrackSizingAlgorithm.cpp:
(WebCore::Layout::indexesForUnfrozenAffectedTracks):
(WebCore::Layout::distributeSpaceEquallyAmongTracks):
(WebCore::Layout::distributeExtraSpace):
Canonical link: https://commits.webkit.org/318577@main
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