[webkit-changes] [WebKit/WebKit] 0b438d: [UI-side compositng] Use ScrollbarsController base...

[Nikos Mouchtaris]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 0b438d0d3534b730070191525a8a0508ccc633d2
      https://github.com/WebKit/WebKit/commit/0b438d0d3534b730070191525a8a0508ccc633d2
  Author: Nikolaos Mouchtaris <nmouchtaris at apple.com>
  Date:   2023-03-27 (Mon, 27 Mar 2023)

  Changed paths:
    M Source/WebCore/WebCore.xcodeproj/project.pbxproj
    M Source/WebCore/page/ChromeClient.cpp
    M Source/WebCore/page/ChromeClient.h
    M Source/WebCore/page/LocalFrameView.cpp
    M Source/WebCore/platform/ScrollableArea.cpp
    M Source/WebCore/platform/ScrollableArea.h
    M Source/WebCore/platform/ScrollbarsController.h
    M Source/WebCore/rendering/RenderLayerScrollableArea.cpp
    M Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp
    M Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h

  Log Message:
  -----------
  [UI-side compositng] Use ScrollbarsController base class to avoid NSScrollerImp usage
https://bugs.webkit.org/show_bug.cgi?id=253684
rdar://106531543

Reviewed by Simon Fraser.

Have FrameView and RenderLayerScrollable area hold a base class ScrollbarsController
to avoid having NSScrollerImps in the WebProcess.

* Source/WebCore/SourcesCocoa.txt:
* Source/WebCore/WebCore.xcodeproj/project.pbxproj:
* Source/WebCore/page/ChromeClient.h:
(WebCore::ChromeClient::usesUISideCompositing const):
* Source/WebCore/page/FrameView.cpp:
(WebCore::FrameView::didAddScrollbar):
* Source/WebCore/page/FrameView.h:
* Source/WebCore/platform/ScrollableArea.cpp:
(WebCore::ScrollableArea::scrollbarsController const):
(WebCore::ScrollableArea::didAddScrollbar):
* Source/WebCore/platform/ScrollableArea.h:
* Source/WebCore/platform/ScrollbarsController.h:
* Source/WebCore/platform/mac/ScrollbarsControllerProxyMac.h: Added.
* Source/WebCore/platform/mac/ScrollbarsControllerProxyMac.mm: Added.
(WebCore::ScrollbarsController::createProxy):
(WebCore::ScrollbarsControllerProxyMac::ScrollbarsControllerProxyMac):
(WebCore::ScrollbarsControllerProxyMac::~ScrollbarsControllerProxyMac):
* Source/WebCore/rendering/RenderLayerScrollableArea.cpp:
(WebCore::RenderLayerScrollableArea::createScrollbar):
* Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::usesUISideCompositing const):
* Source/WebKit/WebProcess/WebCoreSupport/WebChromeClient.h:

Canonical link: https://commits.webkit.org/262176@main