[Webkit-unassigned] [Bug 19033] New: Scrolling does not work when the mouse down is handled by a node

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue May 13 11:19:20 PDT 2008


           Summary: Scrolling does not work when the mouse down is handled
                    by a node
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: PC
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: agiyengar at yahoo.com

Launch Safari 3.1 and navigate to http://cn.msn.com
Wait for the page to load fully.
Now click on the vertical/horizontal scrollbars. 
Observe that the page does not scroll. It does scroll
with the mousewheel.

Debugged this and found that the mouse down event is handled by the 
node returned as a result of the hit test. The hit test does not have
a scrollbar associated with it. This causes the page to not scroll. 
The code should also check if there is a scrollbar under the mouse and
pass it off if yes. The webkit code already does this in the case when
the mouse down event is not handled.

Will submit a patch for this.

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