Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 432af03e413a4e40c73364d8f4711ed344676193
      
https://github.com/WebKit/WebKit/commit/432af03e413a4e40c73364d8f4711ed344676193
  Author: Nikolaos Mouchtaris <nmouchta...@apple.com>
  Date:   2025-07-17 (Thu, 17 Jul 2025)

  Changed paths:
    A 
LayoutTests/fast/scrolling/mac/scrollend-event-user-scroll-basic-expected.txt
    A LayoutTests/fast/scrolling/mac/scrollend-event-user-scroll-basic.html
    M Source/WebCore/dom/Document.cpp
    M Source/WebCore/dom/Document.h
    M Source/WebCore/page/LocalFrameView.cpp
    M Source/WebCore/page/LocalFrameView.h
    M Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp
    M Source/WebCore/platform/ScrollableArea.h
    M Source/WebCore/rendering/RenderLayerScrollableArea.cpp
    M Source/WebCore/rendering/RenderLayerScrollableArea.h
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.cpp
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.h
    M Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingTreeMac.h
    M Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingTreeMac.mm

  Log Message:
  -----------
  Implement basic scrollend event firing
https://bugs.webkit.org/show_bug.cgi?id=295661
rdar://155466666

Reviewed by Simon Fraser.

Implement basic scrollend event firing by adding scrollend event
target list on Document, and populating it via
AsyncScrollingCoordinator callbacks from the UI process indicating
that a scroll ended for a particular element.

* 
LayoutTests/fast/scrolling/mac/scrollend-event-user-scroll-basic-expected.txt: 
Added.
* LayoutTests/fast/scrolling/mac/scrollend-event-user-scroll-basic.html: Added.
* Source/WebCore/dom/Document.cpp:
(WebCore::Document::commonTeardown):
(WebCore::Document::addPendingScrollendEventTarget):
(WebCore::Document::runScrollSteps):
* Source/WebCore/dom/Document.h:
* Source/WebCore/page/LocalFrameView.cpp:
(WebCore::LocalFrameView::scrollDidEnd):
(WebCore::LocalFrameView::scheduleScrollEvent):
* Source/WebCore/page/LocalFrameView.h:
* Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp:
(WebCore::AsyncScrollingCoordinator::wheelEventScrollDidEndForNode):
* Source/WebCore/platform/ScrollableArea.h:
(WebCore::ScrollableArea::scrollDidEnd):
(WebCore::ScrollableArea::isAwaitingScrollend const):
(WebCore::ScrollableArea::setIsAwaitingScrollend):
* Source/WebCore/rendering/RenderLayerScrollableArea.cpp:
(WebCore::RenderLayerScrollableArea::scrollTo):
(WebCore::RenderLayerScrollableArea::scrollDidEnd):
* Source/WebCore/rendering/RenderLayerScrollableArea.h:
* Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.cpp:
(WebKit::RemoteScrollingTree::scrollingTreeNodeDidStopWheelEventScroll):
* Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingTree.h:
* Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingTreeMac.h:
* Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteScrollingTreeMac.mm:
(WebKit::RemoteScrollingTreeMac::scrollingTreeNodeDidStopWheelEventScroll):

Canonical link: https://commits.webkit.org/297567@main



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