[Webkit-unassigned] [Bug 135195] New: Propagate wheel phase information to ScrollAnimator::scroll

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=135195

           Summary: Propagate wheel phase information to
                    ScrollAnimator::scroll
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Unspecified
            Status: NEW
          Severity: Enhancement
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: wenson_hsieh at apple.com


This is a subproblem of the snap points feature, seen here: https://bugs.webkit.org/show_bug.cgi?id=134283

In order to implement snap points in overflow scrolling on Mac, I need to expose wheel event information (i.e. phase and momentum phase) from EventHandler::defaultWheelEventHandler to ScrollAnimator::scroll. This is also necessary for implementing rubber-banding behavior in overflow scrolling.

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