Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 59e1c6227cec2f038d36d6420c893fc17398beb2
https://github.com/WebKit/WebKit/commit/59e1c6227cec2f038d36d6420c893fc17398beb2
Author: Abrar Rahman Protyasha <[email protected]>
Date: 2025-11-13 (Thu, 13 Nov 2025)
Changed paths:
M Source/WebKit/Shared/ScrollingAccelerationCurve.cpp
M Source/WebKit/Shared/ScrollingAccelerationCurve.h
M
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteLayerTreeEventDispatcher.mm
M Source/WebKit/UIProcess/WebPageProxy.cpp
M Source/WebKit/WebProcess/WebPage/EventDispatcher.cpp
M Source/WebKit/WebProcess/WebPage/EventDispatcher.h
M Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.cpp
M Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.h
Log Message:
-----------
Provide a fallback scrolling acceleration curve if curve data is otherwise
unavailable
https://bugs.webkit.org/show_bug.cgi?id=302436
rdar://164600621
Reviewed by Simon Fraser.
There are some situations where curve data may be unavailable from a
WebWheelEvent instance, for example when WKTR synthesizes a wheel event
stream. In situations like this, we would like to have momentum event
generation for (fake, or otherwise) wheel events.
To facilitate this change, we introduce a hardcoded fallback scrolling
acceleration curve. We also introduce a constexpr constructor for
ScrollingAccelerationCurve.
No change in functionality, so no new tests.
* Source/WebKit/Shared/ScrollingAccelerationCurve.cpp:
(WebKit::ScrollingAccelerationCurve::ScrollingAccelerationCurve): Deleted.
Move the constructor to ScrollingAccelerationCurve.h since it is now
constexpr.
* Source/WebKit/Shared/ScrollingAccelerationCurve.h:
(WebKit::ScrollingAccelerationCurve::ScrollingAccelerationCurve):
(WebKit::ScrollingAccelerationCurve::fallbackCurve):
* Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteLayerTreeEventDispatcher.mm:
(WebKit::RemoteLayerTreeEventDispatcher::cacheWheelEventScrollingAccelerationCurve):
* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::cacheWheelEventScrollingAccelerationCurve):
* Source/WebKit/WebProcess/WebPage/EventDispatcher.cpp:
(WebKit::EventDispatcher::setScrollingAccelerationCurve):
* Source/WebKit/WebProcess/WebPage/EventDispatcher.h:
* Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.cpp:
(WebKit::MomentumEventDispatcher::setScrollingAccelerationCurve):
* Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.h:
Drive-by fix: Pass ScrollingAccelerationCurve as r-value references
instead of creating copies at call boundaries.
Canonical link: https://commits.webkit.org/302978@main
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