[gnome-shell] Fix removing summary items

[Marina Zhurakhinskaya <marinaz src gnome org>]

commit 4282748483d2a74fbad90dbe15035224531a6577
Author: Marina Zhurakhinskaya <marinaz redhat com>
Date:   Sun Mar 6 16:29:11 2011 -0500

    Fix removing summary items
    
    Unset this._expandedSummaryItem if it is the summary item that is being removed.
    This avoids "this._sourceTitle.clutter_text is null" error.
    
    Destroy the summary item actor only after calling _unsetClickedSummaryItem()
    that disconnects from one of its signals.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=644043

 js/ui/messageTray.js |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 5c44458..d15bd62 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -1157,7 +1157,7 @@ MessageTray.prototype = {
         if (index == -1)
             return;
 
-        this._summaryItems[index].actor.destroy();
+        let summaryItemToRemove = this._summaryItems[index];
 
         let newSummaryItemsIndex = this._newSummaryItems.indexOf(this._summaryItems[index]);
         if (newSummaryItemsIndex != -1)
@@ -1168,6 +1168,9 @@ MessageTray.prototype = {
         if (source.isChat)
             this._chatSummaryItemsCount--;
 
+        if (this._expandedSummaryItem == summaryItemToRemove)
+            this._expandedSummaryItem = null;
+
         if (this._longestSummaryItem.source == source) {
             let newTitleWidth = 0;
             this._longestSummaryItem = null;
@@ -1192,11 +1195,13 @@ MessageTray.prototype = {
             this._notificationRemoved = true;
             needUpdate = true;
         }
-        if (this._clickedSummaryItem && this._clickedSummaryItem.source == source) {
+        if (this._clickedSummaryItem == summaryItemToRemove) {
             this._unsetClickedSummaryItem();
             needUpdate = true;
         }
 
+        summaryItemToRemove.actor.destroy();
+
         if (needUpdate);
             this._updateState();