[gnome-shell] userMenu: Only save session status when necessary

[Florian MÃllner <fmuellner src gnome org>]

commit 2b8705102248b69f1daf7b2d8411a894530a42ab
Author: Florian MÃllner <fmuellner gnome org>
Date:   Thu Jan 19 19:04:56 2012 +0100

    userMenu: Only save session status when necessary
    
    Saving the status to GSettings is pointless if it did not actually
    change. If done during login, it is actually harmful, as it causes
    dconf-service to be started.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=668214

 js/ui/userMenu.js |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/js/ui/userMenu.js b/js/ui/userMenu.js
index b51adf8..f9c2b46 100644
--- a/js/ui/userMenu.js
+++ b/js/ui/userMenu.js
@@ -388,8 +388,8 @@ const IMStatusChooserItem = new Lang.Class({
         if (!this._imPresenceRestored)
             return;
 
+        let savedStatus = global.settings.get_int('saved-session-presence');
         if (!this._sessionPresenceRestored) {
-            let savedStatus = global.settings.get_int('saved-session-presence');
 
             // We should never save/restore a status other than AVAILABLE
             // or BUSY
@@ -404,8 +404,9 @@ const IMStatusChooserItem = new Lang.Class({
             this._sessionPresenceRestored = true;
         }
 
-        if (sessionStatus == GnomeSession.PresenceStatus.AVAILABLE ||
-            sessionStatus == GnomeSession.PresenceStatus.BUSY)
+        if ((sessionStatus == GnomeSession.PresenceStatus.AVAILABLE ||
+             sessionStatus == GnomeSession.PresenceStatus.BUSY) &&
+            savedStatus != sessionStatus)
             global.settings.set_int('saved-session-presence', sessionStatus);
 
         let [presence, s, msg] = this._accountMgr.get_most_available_presence();