[gnome-shell] Group chat sources on the left in the message tray

[Marina Zhurakhinskaya <marinaz src gnome org>]

commit 6c55ca59b03b6e48a69f16e9779417eee2d161d7
Author: Hellyna Ng <hellyna hellyna com>
Date:   Fri Dec 31 05:09:56 2010 +0800

    Group chat sources on the left in the message tray
    
    This will make it easier for users to get back to their chats.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=617234

 js/ui/messageTray.js     |   13 ++++++++++++-
 js/ui/telepathyClient.js |    2 ++
 2 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 1812983..aa1bdd1 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -806,6 +806,7 @@ Source.prototype = {
         this._iconBin = new St.Bin({ width: this.ICON_SIZE,
                                      height: this.ICON_SIZE });
         this.isTransient = false;
+        this.isChat = false;
     },
 
     setTransient: function(isTransient) {
@@ -1025,6 +1026,7 @@ MessageTray.prototype = {
         // added to the summary without a notification being shown.
         this._newSummaryItems = [];
         this._longestSummaryItem = null;
+        this._chatSummaryItemsCount = 0;
     },
 
     _setSizePosition: function() {
@@ -1058,7 +1060,12 @@ MessageTray.prototype = {
 
         let summaryItem = new SummaryItem(source);
 
-        this._summary.insert_actor(summaryItem.actor, 0);
+        if (source.isChat) {
+            this._summary.insert_actor(summaryItem.actor, 0);
+            this._chatSummaryItemsCount++;
+        } else {
+            this._summary.insert_actor(summaryItem.actor, this._chatSummaryItemsCount);
+        }
 
         let titleWidth = summaryItem.getTitleNaturalWidth();
         if (titleWidth > this._summaryItemTitleWidth) {
@@ -1123,6 +1130,10 @@ MessageTray.prototype = {
             this._newSummaryItems.splice(newSummaryItemsIndex, 1);
 
         this._summaryItems.splice(index, 1);
+
+        if (source.isChat)
+            this._chatSummaryItemsCount--;
+
         if (this._longestSummaryItem.source == source) {
             let newTitleWidth = 0;
             this._longestSummaryItem = null;
diff --git a/js/ui/telepathyClient.js b/js/ui/telepathyClient.js
index ed8feae..8dcbfed 100644
--- a/js/ui/telepathyClient.js
+++ b/js/ui/telepathyClient.js
@@ -455,6 +455,8 @@ Source.prototype = {
     _init: function(accountPath, connPath, channelPath, targetHandle, targetHandleType, targetId) {
         MessageTray.Source.prototype._init.call(this, targetId);
 
+        this.isChat = true;
+
         this._accountPath = accountPath;
 
         let connName = Telepathy.pathToName(connPath);