[wp-trac] [WordPress Trac] #16955: It's tricky to drag metaboxes

[WordPress Trac]

#16955: It's tricky to drag metaboxes
----------------------------+------------------------
 Reporter:  scribu          |       Owner:
     Type:  defect (bug)    |      Status:  reviewing
 Priority:  normal          |   Milestone:  3.1.2
Component:  Administration  |     Version:  3.1
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |
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Comment (by JDTrower):

 So I tracked down the offending code to ui.sortable.js.  The change that
 caused this flickering was introduced in jQuery UI 1.8.  Specifically it
 was the removal of the following code from ui.sortable.js:

 {{{
 //We ignore calculating positions of all connected containers when we're
 not over them
 if(item.instance != this.currentContainer && this.currentContainer &&
 item.item[0] != this.currentItem[0])
         continue;

 }}}

 The relevant jQuery UI Trac ticket is
 [http://bugs.jqueryui.com/ticket/4551] and the relevant jQuery UI GitHub
 commit is [https://github.com/jquery/jquery-
 ui/commit/56b0da59d71396a740cf48a75902243d561ba186].

 I found that by re-adding the code they removed in this commit fixed our
 problem all the way through to the latest release of jQuery UI 1.8.11.
 Obviously hacking this file to re-add this code isn't ideal, but I'm
 unsure if this is a bug in jQuery UI or a bug in WordPress in how we
 implement the usage of jQuery UI.  I can provide a patch to current trunk
 that re-adds the removed code if someone wants to test it, and I can
 provide a patch to update jQuery UI to 1.8.11 with the removed code re-
 added, if anyone is interested.

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/16955#comment:28>
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