Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: d19192443a84fc6e6c00383118c8af3e16f78c8a
https://github.com/WebKit/WebKit/commit/d19192443a84fc6e6c00383118c8af3e16f78c8a
Author: Nikolaos Mouchtaris <nmouchta...@apple.com>
Date: 2023-05-15 (Mon, 15 May 2023)
Changed paths:
M Source/WebCore/platform/ScrollableArea.cpp
M Source/WebCore/platform/ScrollbarsController.h
M
Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollbarsController.h
M
Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollbarsController.mm
Log Message:
-----------
[UI-side compositing] Eliminate unnecessary invalidate of scrollbar layers
when scrolling
https://bugs.webkit.org/show_bug.cgi?id=256624
rdar://109184266
Reviewed by Simon Fraser.
For UI-side compositing, we only paint into scrollbar layers in the WebProcess
for
custom scrollbars. To reflect this, add
RemoteScrollbarsController::shouldDrawIntoScrollbarLayer
and check before invalidating the scrollbar layers, to prevent unnecessary
calls into
GraphicsLayerCA::platformCALayerPaintContents when we aren't actually going to
paint anything.
* Source/WebCore/platform/ScrollableArea.cpp:
(WebCore::ScrollableArea::invalidateScrollbar):
* Source/WebCore/platform/ScrollbarsController.h:
(WebCore::ScrollbarsController::shouldDrawIntoScrollbarLayer const):
* Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollbarsController.h:
*
Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollbarsController.mm:
(WebKit::RemoteScrollbarsController::shouldDrawIntoScrollbarLayer const):
Canonical link: https://commits.webkit.org/264094@main
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