--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuipresence/inc/MCAPresenceObserver.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,73 @@
+/*
+* Copyright (c) 2002-2005 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 API for presence events
+*
+*/
+
+
+#ifndef MCAPRESENCEOBSERVER_H
+#define MCAPRESENCEOBSERVER_H
+
+// INCLUDES
+#include <e32std.h>
+#include "MCAPresence.h"
+
+// CLASS DECLARATION
+
+/**
+*  Class that wishes to receive events about changed presence flags
+*  in friends-list.
+*
+*
+*  @lib CAPresence.lib
+*  @since 1.2
+*/
+class MCAPresenceObserver
+    {
+
+    public:
+
+        /**
+        * Gets called when presence state of a friend/friends
+        * from friends-list changes. When client receives multiple updates
+        * at once, this will still get called only once.
+        */
+        virtual void HandlePresenceChange() = 0;
+
+        /**
+        * Gets called when presence subscription failes. This is used when subscription
+        * request has originated from somewhere else than UI itself.
+        * @param aWVId UserID of failed subscription.
+        */
+        virtual void HandleSubscriptionError(
+            const TDesC& aWVId,
+            const TInt   aErrorCode ) = 0;
+
+        /**
+        * Gets called when own presence status changes
+        */
+        virtual void HandleOwnStatusChange( MCAPresence::TPresenceStatus aStatus ) = 0;
+
+
+    protected:
+
+        /**
+        * Destructor.
+        */
+        virtual ~MCAPresenceObserver() {};
+    };
+
+#endif      // MCAPRESENCEOBSERVER_H
+
+// End of File