[Webkit-unassigned] [Bug 66180] New: AccessibilityObject levels are inconsistent

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=66180

           Summary: AccessibilityObject levels are inconsistent
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: samuel.white at rochester.edu


Currently, three types of AccessibilityObjects return a level value. That is, AccessibilityObjects that represent headings, blockquotes, or tables can have a level associated with them. At the moment, both the headingLevel and blockquoteLevel functions return 0 only when called on an object of the wrong type which makes 1 the smallest valid level each supports. However, tableLevel returns a value of 0 both when called on non-table AccessibilityObjects AND when called on a table that is not inside any other table.

Because some of these level values are not part of any W3C HTML draft and are currently only used by various screen readers I think WebKit should enforce some consistency via additional layout tests so this problem does not grow. This means that tableLevel should be fixed so that it reports a value of 0 only when it is called on a non-table object. Also, this would ensure that these level values remain consistant moving forward and if other levels become useful a central layout test would be available to ensure they too remain consistant.

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