--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sipplugins/sippsystemstatemonitor/inc/sipsnapavailabilitymonitor.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,135 @@
+/*
+* Copyright (c) 2008 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:  
+*
+*/
+
+#ifndef CSIPSNAPAVAILABILITYMONITOR_H
+#define CSIPSNAPAVAILABILITYMONITOR_H
+
+// INCLUDES
+#include "MSystemStateConnUsagePermissionObserver.h"
+#include <sipsystemstatemonitor.h>
+#include <rconnmon.h>
+#include <e32base.h>
+
+// FORWARD DECLARATIONS
+class MSipSystemStateObserver;
+
+// CLASS DEFINITION
+/**
+* A class for monitoring the availability of a SNAP.
+*/
+class CSipSnapAvailabilityMonitor : 
+    public CActive, 
+    public MConnectionMonitorObserver,
+    public MSystemStateConnUsagePermissionObserver
+    {
+    public:    // Constructors and destructor
+
+        /**
+        * Static constructor
+        * @param aSnapId the ID of the SNAP to be monitored
+        * @param aPermissionToUseNetwork the current permission to use network
+        * @param aObserver observer to be notified about SNAP availability
+        * @return An initialized instance of this class.
+        */
+        static CSipSnapAvailabilityMonitor* NewL( 
+            TUint32 aSnapId,
+            TBool aPermissionToUseNetwork,
+            MSipSystemStateObserver& aObserver );
+
+        /**
+        * Static constructor
+        * @param aSnapId the ID of the SNAP to be monitored
+        * @param aPermissionToUseNetwork the current permission to use network
+        * @param aObserver observer to be notified about SNAP availability        
+        * @return An initialized instance of this class.
+        */
+        static CSipSnapAvailabilityMonitor* NewLC( 
+            TUint32 aSnapId,
+            TBool aPermissionToUseNetwork,
+            MSipSystemStateObserver& aObserver );
+
+        /// Destructor
+        ~CSipSnapAvailabilityMonitor();
+
+    public: // From CActive
+    
+        void RunL();        
+
+        void DoCancel();
+
+    public: // From MConnectionMonitorObserver
+
+        void EventL( const CConnMonEventBase &aConnMonEvent );
+
+    public: // from MSystemStateConnUsagePermissionObserver
+    
+        void UsagePermissionChanged( TBool aPermissionToUse, TInt aError );
+        
+    public: // New functions
+    
+        TUint32 SnapId() const;
+
+        CSipSystemStateMonitor::TSnapAvailability SnapAvailability() const;
+
+        void AddObserverL( MSipSystemStateObserver& aObserver );
+
+        void RemoveObserver( MSipSystemStateObserver& aObserver );
+
+        TBool HasObservers() const;
+
+    private: // Constructors
+
+        CSipSnapAvailabilityMonitor( 
+            TUint32 aSnapId,
+            TBool aPermissionToUseNetwork );
+            
+        void ConstructL( MSipSystemStateObserver& aObserver );
+        
+    private: // Private methods
+
+        TBool IsSnapAvailable( 
+            const TConnMonSNAPInfo& aSnapInfo, 
+            TUint32 aSnapId ) const;
+            
+        void NotifyObservers() const;
+        
+        TBool SetCurrentState( 
+            TBool aPermissionToUseNetwork,
+            TBool aSnapAvailable );        
+
+        TBool CanSnapBeUsed() const;
+
+    private: // Data
+
+        TUint32 iSnapId;
+        TBool iPermissionToUseNetwork;
+        TBool iSnapAvailable;
+        // Observers not owned
+        RPointerArray<MSipSystemStateObserver> iObservers; 
+        /// Connection monitor session. Owned.
+        RConnectionMonitor iConnMon;
+        TConnMonSNAPInfoBuf iSnapInfoBuf;
+        // ETrue if successfully connected to Connection Monitor Server
+        // (iConnMon).
+        TBool iIsConnected;
+        
+    private: // For unit testing purposes
+    
+        friend class CSipSnapAvailabilityMonitorTest;  
+    };
+
+#endif // CSIPSNAPAVAILABILITYMONITOR_H