[Webkit-unassigned] [Bug 21454] New: Scroll bar and cursor out of position while scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=21454

           Summary: Scroll bar and cursor out of position while scrolling
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
               URL: http://reader.google.com
        OS/Version: Mac OS X 10.4
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: stimpski at gmail.com


Vertical and horizontal scroll bars are out of position with the cursor when
scrolling. This only seems to happen to the scroll bars of frames and only when
OSX Appearance System Preferences for the scroll bar are set to the following:

"Click in the scroll bar to" is set to "Jump to here"

Test case:

1. Go to reader.google.com
2. Resize window until the left-hand subscriptions pane has a scroll bar.
3. Set OSX Appearance preference "Click in the scroll bar to" to "Jump to
here".
4. Click and drag the top of the vertical scroll bar and it should remain about
10px below the cursor.
5. Set OSX Appearance preference "Click in the scroll bar to" to "Jump to the
next page".
6. Click and drag the top of the vertical scroll bar and it should remain in
sync with the cursor.


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