[Webkit-unassigned] [Bug 37461] New: Spatial Navigation: make renderRectRelativeToRootDocument method to fallback to getRect() of Element when needed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=37461

           Summary: Spatial Navigation: make
                    renderRectRelativeToRootDocument method to fallback to
                    getRect() of Element when needed
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tonikitoo at webkit.org
        Depends on: 18662


As discussed in [1], renderer's absoluteClippedOverflowRect() method can return
an empty IntRect when node() of renderer is offscreen.

For this case, make spatial navigation to fallback to getRect of Element
instead.

[1]
http://old.nabble.com/AbsoluteClippedOverflowRect-return-empty-IntRect-td28005341.html

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