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

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=19033





--- Comment #9 from Antonio Gomes <tonikitoo at webkit.org>  2013-08-21 09:03:18 PST ---
(In reply to comment #0)
> 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.

Safari seems to scroll the page ok now.

Please provide a (reduced) test case or a new URL that shows the bug  or it is not actionable.

> 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.
>

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