Bug 253464

Summary:	AX: Consider simplifying AccessibilityObject::supportsPressAction, AccessibilityObject::actionElement, and AccessibilityObject::press
Product:	WebKit	Reporter:	Tyler Wilcock <tyler_w>
Component:	Accessibility	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	andresg_22, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Other
Hardware:	Unspecified
OS:	Unspecified

Description Tyler Wilcock 2023-03-06 14:10:44 PST

Right now, AccessibilityObject::supportsPressAction and AccessibilityObject::actionElement do complicated and expensive traversals and heuristics to determine if we can expose otherwise inaccessible click handler elements. For example:

<span onclick="handleClick(this)" style="...styled to look like a button...">
  Open Shopping Cart (inaccessible because there is no role="button")
</span>

We should consider reworking all of these functions to instead expose (compute accessibilityIsIgnored = false) elements with click handlers that have only one accessible descendant, as this will be simpler than our current implementation.

Context: https://bugs.webkit.org/show_bug.cgi?id=253337#c9

Comment 1 Radar WebKit Bug Importer 2023-03-06 14:11:01 PST

<rdar://problem/106319562>