In order for timeline drag and drop to work (https://bugs.webkit.org/show_bug.cgi?id=157957), each placeholder tree item needs a corresponding placeholder element in the graph container.
<rdar://problem/27670755>
Created attachment 285178 [details] [Image] Network graph w/ four placeholder graphs
Created attachment 285180 [details] [Patch] Proposed Fix
Comment on attachment 285180 [details] [Patch] Proposed Fix View in context: https://bugs.webkit.org/attachment.cgi?id=285180&action=review The change looks fine, but I don't understand why it's necessary. Can you please put more "why" into the changelog? > Source/WebInspectorUI/ChangeLog:16 > +2016-08-02 Matt Baker <mattbaker@apple.com> Nit: Double changelog.
Created attachment 285265 [details] [Image] UI w/o alternating graph styles
This patch does two things: 1) allows the alternating graph styles to be shown for the inactive instruments 2) when a instrument is dragged/reordered the tree item and graph move together
Created attachment 285266 [details] [Patch] Proposed Fix
Comment on attachment 285266 [details] [Patch] Proposed Fix r=me
Comment on attachment 285266 [details] [Patch] Proposed Fix Clearing flags on attachment: 285266 Committed r204125: <http://trac.webkit.org/changeset/204125>
All reviewed patches have been landed. Closing bug.
Heck yes! Nice, I've been wanting this for a while!