[Webkit-unassigned] [Bug 117644] New: Mouse move events are not flagged as user gestures

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117644

           Summary: Mouse move events are not flagged as user gestures
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Event Handling
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mfeil at rim.com


There is an inconsistency in the handling of mouse input events. Mouse pressed and mouse released events are flagged as user gestures, while mouse moved events are not. This may adversely affect code which later processes mouse events.

For example, the following problem came up in the BlackBerry port: To ensure that the user is intentionally adjusting the volume slider of an HTML5 audio element we reject volume changes which are not the result of a user gesture. All touch events and mouse press/release events passed this check. However dragging the slider using a mouse caused all volume changes to be rejected.

I will be proposing a patch to EventHandler::handleMouseMoveEvent() to address this inconsistency. I also want to make sure this is not being done intentionally.

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