[Webkit-unassigned] [Bug 230167] New: AX: Enable searching of plugin tree for NSAccessibilityUIElementsForSearchPredicateParameterizedAttribute requests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230167

            Bug ID: 230167
           Summary: AX: Enable searching of plugin tree for
                    NSAccessibilityUIElementsForSearchPredicateParameteriz
                    edAttribute requests
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tyler_w at apple.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

Bug https://bugs.webkit.org/show_bug.cgi?id=229556 exposes the root plugin object for NSAccessibilityUIElementsForSearchPredicateParameterizedAttribute requests with SearchKey::AnyType. However, we should also support searching of elements inside the plugin tree. For example, if the underlying plugin is a PDF that has a control, and we receive a request with SearchKey::Control criteria, we should be able to return that PDF control.

To do this, we'll either need to perform the plugin tree traversal and matching ourselves, or ask the plugin to do it in some standard way, since the plugin could represent anything (i.e. not just PDFs).

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