[Webkit-unassigned] [Bug 115824] New: [BlackBerry] Don't set active or hover styles on touch start

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed May 8 14:19:53 PDT 2013


           Summary: [BlackBerry] Don't set active or hover styles on touch
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: gmak at rim.com

Setting active or hover styles on links and other parts of the tree can require a relayout and a style recalc which on some pages such as links on http://en.wikipedia.org/wiki/Olympic_Games (desktop version) can take over 300 ms. 
We would like to be able to set elements active if they have a touch listener or are form controls.

Anecdotally, those doing a mouseover on those links on safari desktop results in approx 20ms of style recalc and 20ms of layout which seems high compared to other sites, but not being familiar with its stats I can't tell if its reasonable.

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