[Webkit-unassigned] [Bug 280643] New: AX: need to handle dynamically-created and nested aria-modal dialogs

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=280643

            Bug ID: 280643
           Summary: AX: need to handle dynamically-created and nested
                    aria-modal dialogs
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dm_mazzoni at apple.com
                CC: andresg_22 at apple.com,
                    webkit-bug-importer at group.apple.com

In isolated tree mode, WebKit wasn't properly handling the case where an aria-modal dialog is dynamically created and added to the DOM.
In addition, WebKit didn't have any logic to pick the deepest aria-modal dialog if multiple dialogs are nested. Adding this logic matches Chrome's behavior now.
In both cases, the issue was correctly ignoring everything outside of the dialog while focus is inside.

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