[webkit-changes] [WebKit/WebKit] 66b857: REGRESSION(287835 at main): [CoordinatedGraphics] Wro...

[Carlos Garcia Campos]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 66b85784bb16dcb69f3b6dbd8192d77fb21577f4
      https://github.com/WebKit/WebKit/commit/66b85784bb16dcb69f3b6dbd8192d77fb21577f4
  Author: Carlos Garcia Campos <cgarcia at igalia.com>
  Date:   2024-12-17 (Tue, 17 Dec 2024)

  Changed paths:
    M Source/WebCore/page/scrolling/coordinated/ScrollingTreeCoordinated.cpp

  Log Message:
  -----------
  REGRESSION(287835 at main): [CoordinatedGraphics] Wrong layer is scrolled sometimes
https://bugs.webkit.org/show_bug.cgi?id=284805

Reviewed by Alejandro G. Castro.

I made a mistake in 287835 at main in the point transformation when
collecting scrolling layers for a given point, causing the wrong layer
to be returned. We should use the parent bounds origin instead of the
child one.

* Source/WebCore/page/scrolling/coordinated/ScrollingTreeCoordinated.cpp:
(WebCore::collectDescendantLayersAtPoint):

Canonical link: https://commits.webkit.org/287935@main



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