Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: ae547fbaa071a7b2d64593e90cb71be632ec4333
https://github.com/WebKit/WebKit/commit/ae547fbaa071a7b2d64593e90cb71be632ec4333
Author: Matt Woodrow <mattwood...@apple.com>
Date: 2024-10-22 (Tue, 22 Oct 2024)
Changed paths:
A LayoutTests/fast/layers/hidden-scroller-layer-position-crash-expected.txt
A LayoutTests/fast/layers/hidden-scroller-layer-position-crash.html
M Source/WebCore/rendering/RenderLayerScrollableArea.cpp
Log Message:
-----------
Twitch.tv ASSERTION FAILED: mode == Verify => !geometryChanged.
https://bugs.webkit.org/show_bug.cgi?id=281839
<rdar://138286002>
Reviewed by Simon Fraser.
Scroll requests are normally handled asynchronously, or their RenderLayers get
position updates from an immediate call to
updateLayerPositionsAfterOverflowScroll from within
RenderLayerScrollableArea::scrollTo.
In rare cases neither of those work (overflow:hidden to prevent async, and
visibility:hidden to hit an early return
RenderLayer::recursiveUpdateLayerPositionsAfterScroll), and the scroll position
changes without a layer update.
Mark the layer and descendants (their position relative to this layer might
have changed) as needing an update.
* LayoutTests/fast/layers/hidden-scroller-layer-position-crash-expected.txt:
Added.
* LayoutTests/fast/layers/hidden-scroller-layer-position-crash.html: Added.
* Source/WebCore/rendering/RenderLayerScrollableArea.cpp:
(WebCore::RenderLayerScrollableArea::scrollTo):
Canonical link: https://commits.webkit.org/285549@main
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