Bug 315345

Summary:	[GTK][WPE] Dynamic scrollbar-width changes are not repainted
Product:	WebKit	Reporter:	klee
Component:	Scrolling	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Linux

klee

Reported 2026-05-22 01:07:10 PDT

On WPE and GTK, ScrollbarsControllerGeneric does not override scrollbarWidthChanged(), so dynamic CSS scrollbar-width changes are not repainted until the next full layout invalidation. Mac and Remote controllers already handle this. This blocks WPT css/css-scrollbars/scrollbar-width-paint-001..006.html.

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klee

Comment 1 2026-05-22 01:15:56 PDT

Pull request: https://github.com/WebKit/WebKit/pull/65465

EWS

Comment 2 2026-05-22 03:04:53 PDT

Committed 313719@main (ea6f507822be): <https://commits.webkit.org/313719@main> Reviewed commits have been landed. Closing PR #65465 and removing active labels.

Radar WebKit Bug Importer

Comment 3 2026-05-22 03:05:14 PDT

<rdar://problem/177700182>

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