Bug 233234

Summary:	Need a way to test scrolling momentum animations
Product:	WebKit	Reporter:	Simon Fraser (smfr) <simon.fraser>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari Technology Preview
Hardware:	Unspecified
OS:	Unspecified

Simon Fraser (smfr)

Reported 2021-11-16 20:24:41 PST

Currently WheelEventTestMonitor doesn't know about momentum animations, but even if it did, it's impossible to write a test that determines whether an "End" momentum event has interrupted the momentum. This is because we start the animator when we see the momentum "Began", ignoring the rest of the momentum changed. The animator runs on a display link callback on the scrolling thread, so we don't have a reliable way to know when the animator has run enough frames to move content around.

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Radar WebKit Bug Importer

Comment 1 2021-11-23 20:25:19 PST

<rdar://problem/85716526>

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