Bug 223415

Summary:	AX: Accessibility pass-through drag events on ARIA sliders are being intercepted by text selection handlers
Product:	WebKit	Reporter:	James Craig <jcraig>
Component:	Accessibility	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	All
OS:	All

Description James Craig 2021-03-17 20:50:52 PDT

AX: Accessibility pass-through drag events on ARIA sliders are being intercepted by text selection handlers

Repro:
1. Load https://files.paciellogroup.com/blogmisc/ARIA/slider/
2. With VO on, select the slider thumb.
3. Double-tap and hold (wait for the tone if applicable) and drag left or right.

Results:
Text selection UI (with drag handles) appears.

Expected: 
VO pass-through drag should change the position of the slider thumb, resulting in the web app changing the aria-valuenow attribute, which then VoiceOver should announce. Similar to the expectation for native sliders...

Comment 1 Radar WebKit Bug Importer 2021-03-17 20:51:01 PDT

<rdar://problem/75558315>

Comment 2 James Craig 2021-03-18 09:40:50 PDT

Update: Paciello example doesn't support touch events. That might do explain it... If confirmed, this could be closed.