[Webkit-unassigned] [Bug 117265] New: Spatial Navigation should avoid unwanted calculation while deciding focus candidate.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117265

           Summary: Spatial Navigation should avoid unwanted calculation
                    while deciding focus candidate.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kandalkar.abhijeet58 at gmail.com
                CC: yael at webkit.org, simon.fraser at apple.com,
                    tonikitoo at webkit.org, gyuyoung.kim at samsung.com


Spatial Navigation should consider only those nodes as candidate which are exactly in the focus-direction.
e.g. If we are moving down then the nodes that are above CURRENT focused node should be considered as invalid.

           1
      5          4

 Left      2       Right


           3

If '2' is a current focused node and focus direction is DOWN, then '1','5','4' should be consider as invalid since they are above(UP) the '2'.

Current implementation, first consider '1', calculate all offsets and data needed to decide best candidate and then discard it.Similar procedure for '4' and '5'.It is better to discard them in first stage so that we can save extra calculation needed to determine best candidate.

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