[Webkit-unassigned] [Bug 49382] New: Spatial Navigation: issues with the node selection algorithm.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=49382

           Summary: Spatial Navigation: issues with the node selection
                    algorithm.
           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: yael.aharon at nokia.com
                CC: tonikitoo at webkit.org, Chang.Shu at nokia.com
            Blocks: 39121,46905


A few issues were found in the spatial navigation algorithm.
1. When no node is focused, we use tab-index to determine which node to focus. That causes a problem because not all focusable elements have tab-index attribute, so we would skip them.
2. When a frame or scrollable container do not have visible focusable elements, but can scroll, they should scroll to reveal the rest of its content.
3. z-index is not taken into account.
4. If an element will become visible after the container scrolls, it should be focused without an additional click on the arrow key.

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