Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: f4da5af098183c54d35842d7fd446d8157ae1780
https://github.com/WebKit/WebKit/commit/f4da5af098183c54d35842d7fd446d8157ae1780
Author: Tim Horton <[email protected]>
Date: 2026-04-17 (Fri, 17 Apr 2026)
Changed paths:
M Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.cpp
M Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.h
Log Message:
-----------
Use a simple deceleration curve for automation-originated momentum scrolls
https://bugs.webkit.org/show_bug.cgi?id=312613
rdar://175044018
Reviewed by Lily Spiniolas.
Automation wants repeatability and consistency, so instead of reading
the momentum deceleration curve off the local trackpad hardware, use
a simple exponential deceleration for automation-sourced wheel events.
* Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.cpp:
(WebKit::MomentumEventDispatcher::dispatchSyntheticMomentumEvent):
(WebKit::MomentumEventDispatcher::didStartMomentumPhase):
(WebKit::MomentumEventDispatcher::buildOffsetTableWithInitialDelta):
(WebKit::MomentumEventDispatcher::computeNextDeltaSimple):
* Source/WebKit/WebProcess/WebPage/MomentumEventDispatcher.h:
Canonical link: https://commits.webkit.org/311514@main
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