--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvcommandutils/Inc/mcaservicestateobserver.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,59 @@
+/*
+* Copyright (c) 2006-2006 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Observer interface to get events from service state changes.
+*
+*/
+
+
+#ifndef MCASERVICESTATEOBSERVER_H__
+#define MCASERVICESTATEOBSERVER_H__
+
+
+// CLASS DECLARATION
+
+/**
+ *  Observer interface to get events from service state changes.
+ *
+ *  @lib Chat.exe
+ *  @since S60 v3.1
+ */
+class MCAServiceStateObserver
+    {
+    public:
+
+        // Possible service states
+        enum TServiceState
+            {
+            EUnknown = 0,
+            EOffline,
+            EOnline
+            };
+
+        /**
+         * Handle service state event
+         * @param aState Current service state
+         */
+        virtual void HandleServiceStateChangeL( TServiceState aState ) = 0;
+
+    protected: // For protection.
+
+        /**
+         * Destructor for protection
+         */
+        virtual ~MCAServiceStateObserver() {}
+    };
+
+#endif      // MCASERVICESTATEOBSERVER_H__
+
+// End of File