[webkit-changes] [WebKit/WebKit] 8ea93a: [UI-side compositing] Have internals.setUsesOverla...

[Nikos Mouchtaris]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 8ea93a3480fe79a7979111cb6935755eddca56bb
      https://github.com/WebKit/WebKit/commit/8ea93a3480fe79a7979111cb6935755eddca56bb
  Author: Nikolaos Mouchtaris <nmouchtaris at apple.com>
  Date:   2023-03-27 (Mon, 27 Mar 2023)

  Changed paths:
    M Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp
    M Source/WebCore/page/scrolling/ScrollingStateFrameScrollingNode.cpp
    M Source/WebCore/page/scrolling/ScrollingStateFrameScrollingNode.h
    M Source/WebCore/page/scrolling/ScrollingStateNode.h
    M Source/WebCore/page/scrolling/ScrollingTree.cpp
    M Source/WebCore/page/scrolling/ScrollingTree.h
    M Source/WebKit/Shared/RemoteLayerTree/RemoteScrollingCoordinatorTransaction.cpp
    M Source/WebKit/Shared/WebCoreArgumentCoders.serialization.in
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingCoordinatorProxy.cpp
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteScrollingCoordinatorProxy.h
    M Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteLayerTreeDrawingAreaProxyMac.h
    M Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteLayerTreeDrawingAreaProxyMac.mm
    M Tools/WebKitTestRunner/mac/UIScriptControllerMac.h

  Log Message:
  -----------
  [UI-side compositing] Have internals.setUsesOverlayScrollbars() plumb bit to UI process
https://bugs.webkit.org/show_bug.cgi?id=254381
rdar://107161887

Reviewed by Simon Fraser.

Add a bit on the frame node of the scrolling tree for overlay scrollbar state.

* LayoutTests/fast/scrolling/mac/scrollbars/overflow-overlay-scrollbar-reveal.html:
* Source/WebKit/UIProcess/API/mac/WKWebViewPrivateForTestingMac.h:
* Source/WebKit/UIProcess/API/mac/WKWebViewTestingMac.mm:
(-[WKWebView _setUsesOverlayScrollbars:]):
* Source/WebKit/UIProcess/Cocoa/WebPageProxyCocoa.mm:
(WebKit::WebPageProxy::setUsesOverlayScrollbars):
* Source/WebKit/UIProcess/WebPageProxy.h:
* Tools/TestRunnerShared/UIScriptContext/Bindings/UIScriptController.idl:
* Tools/TestRunnerShared/UIScriptContext/UIScriptController.h:
(WTR::UIScriptController::setUsesOverlayScrollbars const):
* Tools/WebKitTestRunner/mac/UIScriptControllerMac.h:
* Tools/WebKitTestRunner/mac/UIScriptControllerMac.mm:
(WTR::UIScriptControllerMac::setUsesOverlayScrollbars const):

Canonical link: https://commits.webkit.org/262186@main