Bug 263979

Summary: AX: comboboxes with aria-activedescendant but no aria-owns no longer work
Product: WebKit Reporter: Dominic Mazzoni <dm_mazzoni>
Component: AccessibilityAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: andresg_22, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: macOS 14   

Description Dominic Mazzoni 2023-10-31 09:52:27 PDT 
WebKit should fire a notification when aria-activedescendant changes on a combobox, so that AT can announce the selected child.

Previously this worked, but a refactor (https://bugs.webkit.org/show_bug.cgi?id=240357) led it to only work when the combobox uses aria-owns or aria-controls. It should also work when the author doesn’t use those.
Comment 1 Radar WebKit Bug Importer 2023-10-31 09:52:37 PDT 
<rdar://problem/117747058>
Comment 2 Dominic Mazzoni 2023-10-31 10:47:00 PDT 
Pull request: https://github.com/WebKit/WebKit/pull/19777
Comment 3 EWS 2023-11-03 10:10:52 PDT 
Committed 270182@main (481028cb765b): <https://commits.webkit.org/270182@main>

Reviewed commits have been landed. Closing PR #19777 and removing active labels.