[Webkit-unassigned] [Bug 136650] New: Rubber-banding in the DOM view of the WebInspector is really jumpy

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=136650

           Summary: Rubber-banding in the DOM view of the WebInspector is
                    really jumpy
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bdakin at apple.com


* SUMMARY
If you try to rubber-band in the DOM view of the WebInspector, things get a bit jumpy.

* STEPS TO REPRODUCE
1. Open a web page, I used http://www.webkit.org.
2. Open the WebInspector and make sure the DOM tree view is visible.
3. Make sure the DOM tree view is scrollable by expanding as many of the nodes as you can (I option-clicked the body).
4. Scroll and rubber-band the view with your mouse cursor over the nodes (you will notice the blue hightlight moving from node to node staying under your cursor).

* RESULTS
As you rubber-band, the view will jump around a bit.

* REGRESSION
This is new with the changes to add rubber-banding in overflow areas.

* NOTES
If you rubber-band over the scrollbar track while it is visible or when the WebInspector is not the frontmost window, you will not see the jumping, but you will notice the blue hightlight also does not change.

rdar://problem/18166043

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