Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: bb9af3d426703c0dab09e5de39fe435eb6876f7f
https://github.com/WebKit/WebKit/commit/bb9af3d426703c0dab09e5de39fe435eb6876f7f
Author: Nikolaos Mouchtaris <[email protected]>
Date: 2024-01-03 (Wed, 03 Jan 2024)
Changed paths:
A
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-nested-anchor-expected.txt
A
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-nested-anchor.html
M Source/WebCore/page/scrolling/ScrollAnchoringController.cpp
M Source/WebCore/page/scrolling/ScrollAnchoringController.h
M Source/WebCore/rendering/RenderElement.cpp
M Source/WebCore/rendering/RenderObject.cpp
M Source/WebCore/rendering/RenderObject.h
Log Message:
-----------
[scroll-anchoring] Weird scrolling effect when scrolling YouTube transcript
panel
https://bugs.webkit.org/show_bug.cgi?id=267005
rdar://120378263
Reviewed by Simon Fraser.
After https://commits.webkit.org/272277@main we descend subscrollers that are
not maintaining a
scroll anchor. We need to replicate the logic used in
ScrollAnchoringController::examineAnchorCandidate
for ScrollAnchoringController::didFindPriorityCandidate, to ensure we don't end
up choosing an anchor
element that is a descendant of a scrollable area that is maintaining a scroll
anchor.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-nested-anchor-expected.txt:
Added.
*
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-nested-anchor.html:
Added.
* Source/WebCore/page/scrolling/ScrollAnchoringController.cpp:
(WebCore::scrollAnchoringControllerForElement):
(WebCore::ScrollAnchoringController::didFindPriorityCandidate):
(WebCore::canDescendIntoElement):
(WebCore::ScrollAnchoringController::isExcludedSubtree):
(WebCore::ScrollAnchoringController::examineAnchorCandidate):
(WebCore::ScrollAnchoringController::chooseAnchorElement):
(WebCore::ScrollAnchoringController::adjustScrollPositionForAnchoring):
* Source/WebCore/page/scrolling/ScrollAnchoringController.h:
Canonical link: https://commits.webkit.org/272616@main
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