[Webkit-unassigned] [Bug 150630] New: Web Inspector: Rendering Frames pie chart does not update during initial selection of a timeline range

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150630

            Bug ID: 150630
           Summary: Web Inspector: Rendering Frames pie chart does not
                    update during initial selection of a timeline range
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bburg at apple.com
                CC: bburg at apple.com, graouts at webkit.org,
                    joepeck at webkit.org, mattbaker at apple.com,
                    nvasilyev at apple.com, timothy at apple.com,
                    webkit-bug-importer at group.apple.com

Steps to reproduce:

 * Get some content in the timeline
 * Switch to rendering frames view
 * Mousedown in the ruler and drag left or right

Expected:

 * pie chart should live-update as I drag the selection

Actual:

 * pie chart doesn't update until selection is committed (i.e., mouseup)


Notes:

It would seem that we don't create an actual selection until the range is committed, so none of the UI knows to update. In the UI, there is no difference between a real and provisional selection.

Since all of the UI live-updates when panning an already created selection, I don't think this will cause a meaningful perf regression, except in one case. Selecting a range when a busy ScriptTimelineView will be choppy until we fix other filtering/render performance problems.

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