[webkit-changes] [WebKit/WebKit] c76f59: View transition layers are positioned wrong if a c...

[mattwoodrow]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: c76f59cd157b8728cdac41d7336553dc84c3297f
      https://github.com/WebKit/WebKit/commit/c76f59cd157b8728cdac41d7336553dc84c3297f
  Author: Matt Woodrow <mattwoodrow at apple.com>
  Date:   2024-02-25 (Sun, 25 Feb 2024)

  Changed paths:
    M Source/WebCore/rendering/RenderLayerBacking.cpp

  Log Message:
  -----------
  View transition layers are positioned wrong if a clipping layer is present.
https://bugs.webkit.org/show_bug.cgi?id=270058
<rdar://123607249>

Reviewed by Tim Nguyen.

Positioning for a view-transition 'new' layer currently sets the origin of the
primary graphics rect to 0,0, but this doesn't move any clipping layers positioned
in updateClippingStackLayerGeometry.

We can instead adjust the position of the 'parent graphics layer rect' (since all
local layer positions are computed relative to that) to a value that results in 0,0
being computed for the primary rect.

* Source/WebCore/rendering/RenderLayerBacking.cpp:
(WebCore::RenderLayerBacking::updateGeometry):

Canonical link: https://commits.webkit.org/275307@main



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