[Webkit-unassigned] [Bug 106638] New: AX: Computed hierarchical level is not consistent with aria-level

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106638

           Summary: AX: Computed hierarchical level is not consistent with
                    aria-level
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dmazzoni at google.com


The specs for aria-level say that it's 1-based (http://www.w3.org/TR/wai-aria/states_and_properties#aria-level), but when no aria-level is provided, WebKit computes a 0-based hierarchical level for a tree, so they're inconsistent.

Mac uses 0-based levels, so I think the right solution is for WebKit to be 1-based internally (to match the aria-level spec) and the Mac impl should subtract one when returning disclosureLevel.

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