[gnome-shell] ui: Allow moving menu items to a certain position

[Benjamin Berg <bberg src gnome org>]

commit c75785efffe945ae0d5c9eb6c51759f5404b5d24
Author: Benjamin Berg <bberg redhat com>
Date:   Mon Feb 13 16:02:02 2017 +0100

    ui: Allow moving menu items to a certain position
    
    This function is a helper to simplify keeping menu items ordered when
    their order is updated on the fly (e.g. network connections being
    renamed).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=778686

 js/ui/popupMenu.js |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index 52a58d6..011a95a 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -605,6 +605,24 @@ const PopupMenuBase = new Lang.Class({
         menuItem.actor.show();
     },
 
+    moveMenuItem: function(menuItem, position) {
+        let items = this._getMenuItems();
+        let i = 0;
+
+        while (i < items.length && position > 0) {
+                if (items[i] != menuItem)
+                        position--;
+                i++;
+        }
+
+        if (i < items.length) {
+                if (items[i] != menuItem)
+                        this.box.set_child_below_sibling(menuItem.actor, items[i].actor);
+        } else {
+                this.box.set_child_above_sibling(menuItem.actor, null);
+        }
+    },
+
     addMenuItem: function(menuItem, position) {
         let before_item = null;
         if (position == undefined) {