[gnome-shell] MessageTray: fix closing the right click menu

[Giovanni Campagna <gcampagna src gnome org>]

commit b59529e579e915a89d538c2b03ace6ecbd988b65
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Wed Nov 21 01:29:45 2012 +0100

    MessageTray: fix closing the right click menu
    
    We were trying to disconnect a signal we never added.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=688771

 js/ui/messageTray.js |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 31283e6..266759b 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -2493,6 +2493,7 @@ const MessageTray = new Lang.Class({
             this._summaryBoxPointerItem.prepareNotificationStackForShowing();
         } else if (this._clickedSummaryItemMouseButton == 3) {
             this._summaryBoxPointer.bin.child = this._clickedSummaryItem.rightClickMenu;
+            this._summaryBoxPointerCloseClickedId = 0;
         }
 
         this._grabHelper.grab({ actor: this._summaryBoxPointer.bin.child,
@@ -2599,8 +2600,10 @@ const MessageTray = new Lang.Class({
         this._summaryBoxPointer.bin.child = null;
         this._summaryBoxPointerItem.disconnect(this._summaryBoxPointerContentUpdatedId);
         this._summaryBoxPointerContentUpdatedId = 0;
-        this._summaryBoxPointerItem.closeButton.disconnect(this._summaryBoxPointerCloseClickedId);
-        this._summaryBoxPointerCloseClickedId = 0;
+        if (this._summaryBoxPointerCloseClickedId != 0) {
+            this._summaryBoxPointerItem.closeButton.disconnect(this._summaryBoxPointerCloseClickedId);
+            this._summaryBoxPointerCloseClickedId = 0;
+        }
         this._summaryBoxPointerItem.source.disconnect(this._sourceDoneDisplayingId);
         this._summaryBoxPointerDoneDisplayingId = 0;