--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/cimpsconnuipreseventnotifierng.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,165 @@
+/*
+* Copyright (c) 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:  Presence event notifier.
+*
+*/
+
+#ifndef __CIMPSCONNUIPRESEVENTNOTIFIERNG_H
+#define __CIMPSCONNUIPRESEVENTNOTIFIERNG_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <impspresenceconnectionuiconstsng.h>
+
+
+//FORWARD DECLARATIONS
+class MIMPSConnUiPresenceEventObserver;
+class CIMPSConnUiPresEventNotifierImpBase;
+class CPEngNWSessionSlotID2;
+
+/**
+ * Presence event notifier.
+ *
+ * @lib IMPSConnectionUi.lib
+ * @since 2.1
+ */
+class CIMPSConnUiPresEventNotifier : public CBase
+    {
+    public:  // Constructors and destructor
+
+        /**
+         * Two-phased constructor.
+         */
+        IMPORT_C static CIMPSConnUiPresEventNotifier* NewL();
+
+        /**
+         * Two-phased constructor.
+         * Leaves CIMPSConnUiPresEventNotifier object on the
+         * CleanupStack.
+         */
+        IMPORT_C static CIMPSConnUiPresEventNotifier* NewLC();
+
+        /**
+         * Destructor.
+         */
+        IMPORT_C virtual ~CIMPSConnUiPresEventNotifier();
+
+
+    public: // New functions
+
+        /**
+         * Start listening presence events.
+         *
+         * Starts to deliver notifications to reqistered
+         * observers. Notifiaction is requsted from all
+         * presence events, and those are reported
+         * asynchronously to observers when they happen.
+         *
+         * Starting fails with leave if:
+         * - already started (KErrInUse)
+         * - no observers registered (KErrNotReady)
+         * - if running out of resourcies (KErrNoMemory)
+         * - or with other standard Symbian OS errorcodes
+         *   coming from underlying PEC engine.
+         * @since 2.1
+         */
+        IMPORT_C virtual void StartL();
+
+
+        /**
+         * Stop listening presence events.
+         *
+         * Stop listening presence events.
+         * KErrCancel error is notified
+         * synchronously to reqistered observers.
+         *
+         * @since 2.1
+         */
+        IMPORT_C virtual void Stop();
+
+
+        /**
+         * Add observer.
+         *
+         * Add observer to receive notifications about
+         * presence events.
+         *
+         * @since 2.1
+         */
+        IMPORT_C virtual void AddObserverL( MIMPSConnUiPresenceEventObserver* aObserver );
+
+
+        /**
+         * Remove observer.
+         *
+         * Removes observer from getting the presence events.
+         *
+         * @since 2.1
+         * @return KErrNotFound if the observer wasn't previously added.
+         * Otherwise KErrNone.
+         */
+        IMPORT_C virtual TInt RemoveObserver( MIMPSConnUiPresenceEventObserver* aObserver );
+
+
+        /**
+         * Gets current service status as application
+         * level enumeration.
+         *
+         * @since 3.0
+         * @return  Result:
+         *  - KErrNone if state succesfully get.
+         *  - Else one of system wide error codes.
+         */
+        IMPORT_C virtual const CPEngNWSessionSlotID2* AppServiceStatusL(
+            TIMPSConnectionClient aClient );
+
+
+
+    protected: //Constructors.
+
+        /**
+         * C++ default constructor.
+         */
+        CIMPSConnUiPresEventNotifier();
+
+        /**
+         * Symbian OS constructor.
+         *
+         * Symbian OS constructor for
+         * derived implementations.
+         */
+        void ConstructL( CIMPSConnUiPresEventNotifierImpBase* aImp );
+
+
+    private: //Symbian constructor
+
+        /**
+         * Symbian OS constructor.
+         * For class internal vonstruction.
+         */
+        void ConstructL();
+
+
+
+    private: //Data
+        ///<Implementation, owned
+        CIMPSConnUiPresEventNotifierImpBase*   iImp;
+
+        ///<Reserved, owned
+        TAny*                                  iReserved1;
+    };
+
+#endif      // __CIMPSCONNUIPRESEVENTNOTIFIERNG_H
+
+// End of File