[Webkit-unassigned] [Bug 131111] New: AX: no accessibility support for details element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=131111

           Summary: AX: no accessibility support for details element
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jcraig at apple.com
                CC: webkit-bug-importer at group.apple.com


This is like disclosure triangles on OS X. They are focusable buttons that expand and collapse the other sibling nodes. 

Probable changes for this bug. 

1. Change the DisclosureTriangleRole to just DisclosureRole. Will not always render as triangle.
2. Update summary element to use the new role, and be the label for the group.
3. Update AccessibilityObject::supportsARIAExpanded() to be supportsExpanded()… No longer ARIA-specific.
4. Update AccessibilityObject::isExpanded() to account for the boolean "open" attr on DisclosureRole in addition to aria-expanded.
5. Update test in getAccessibilityPropertiesForNode.html

Test case markup:

<details open>
  <summary>Some open info</summary>
  <p>Details about the open topic.</p>
</details>

<details>
  <summary>Some closed info</summary>
  <p>Details about the closed topic.</p>
</details>

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