Bug 262878

Summary:	uievents/mouse/mousemove_prevent_default_action.tentative.html WPT is failing
Product:	WebKit	Reporter:	Abrar Rahman Protyasha <a_protyasha>
Component:	UI Events	Assignee:	Abrar Rahman Protyasha <a_protyasha>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	a_protyasha, karlcow, webkit-bug-importer
Priority:	P2	Keywords:	BrowserCompat, InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=263043

Description Abrar Rahman Protyasha 2023-10-09 02:15:47 PDT

WPT status here: https://wpt.fyi/results/uievents/mouse/mousemove_prevent_default_action.tentative.html?label=master&label=experimental&product=chrome&product=firefox&product=safari&aligned&view=interop&q=label%3Ainterop-2023-events

It was added as an WPT due to the discussion in: https://github.com/w3c/uievents/issues/278

Discussed in chromium here: https://bugs.chromium.org/p/chromium/issues/detail?id=346473

There's an active test change proposal here: https://github.com/web-platform-tests/interop/issues/396

Comment 1 Radar WebKit Bug Importer 2023-10-09 02:16:04 PDT

<rdar://problem/116668701>

Comment 2 Abrar Rahman Protyasha 2023-10-10 04:24:13 PDT

There is a web compat risk associated with changing WebKit's behavior to what this test expects. Refer to https://github.com/w3c/uievents/issues/278 for extended discussion.

Having said that, it is well understood that calling `preventDefault` on `mousemove` events should _NOT_ prevent `selectionchange`.

Comment 3 Abrar Rahman Protyasha 2023-10-10 04:40:19 PDT

Pull request: https://github.com/WebKit/WebKit/pull/18890

Comment 4 EWS 2023-10-16 12:06:20 PDT

Committed 269370@main (4ed18444c723): <https://commits.webkit.org/269370@main>

Reviewed commits have been landed. Closing PR #18890 and removing active labels.