--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtengines/videoteleng/CallCtrl/Inc/CVtCtlCallStatusMonitor.h	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,159 @@
+/*
+* Copyright (c) 2004 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:  Monitors call status.
+*
+*/
+
+
+
+#ifndef CVTCTLCALLSTATUSMONITOR_H
+#define CVTCTLCALLSTATUSMONITOR_H
+
+//  INCLUDES
+
+#include "MVtCtlCallControl.h"
+#include <e32base.h>
+#include <etelmm.h>
+
+/**
+* Array for resolving call status (TMobileCallStatus) transition validity.
+* Transition to lower value is not possible with exception to 0 priority
+* (always possible to go to idle state). Initial state is EStatusUnknown.
+*/
+static const TInt KVtCtlStatusTransitionPriorities[] =
+    { 
+      1, //    EStatusUnknown
+      0, //    EStatusIdle, possible from any
+      2, //    EStatusDialling
+      2, //    EStatusRinging
+      3, //    EStatusAnswering
+      3, //    EStatusConnecting
+      4, //    EStatusConnected
+      5, //    EStatusDisconnecting          
+      // Status values below are not valid in video calls => should not happen.
+      5, //    EStatusDisconnectingWithInband      
+      0, //    EStatusReconnectPending
+      0, //    EStatusHold
+      0, //    EStatusWaitingAlternatingCallSwitch
+      0, //    EStatusTransferring
+      0  //    EStatusTransferAlerting
+    };
+
+// FORWARD DECLARATIONS
+class MVtCtlCallStatusObserver;
+
+// CLASS DECLARATION
+
+/**
+*  Monitor for call status
+*
+*  @lib CSCallCtrl
+*  @since 2.6
+*/
+NONSHARABLE_CLASS( CVtCtlCallStatusMonitor ) : public CActive
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * C++ constructor.
+        * @param aCall call subsession
+        * @param aObserver call status observer
+        */
+        /*****************************************************
+        *   Series 60 Customer / ETel
+        *   Series 60  ETel API
+        *****************************************************/
+        CVtCtlCallStatusMonitor( 
+            RMobileCall& aCall,
+            MVtCtlCallStatusObserver& aObserver );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CVtCtlCallStatusMonitor();
+
+    public: // New functions
+        
+        /**
+        * Starts monitoring
+        */
+        void Start();
+
+    private:  // From CActive
+
+        /**
+        * Cancel monitoring.
+        */
+        virtual void DoCancel();
+
+        /**
+        * Handles call status change.
+        */
+        virtual void RunL();
+
+        /**
+        * Handles leave in RunL.
+        * @param aError error code
+        * @return KErrNone
+        */
+        virtual TInt RunError( TInt aError );
+
+    public: // New functions
+        
+        /**
+        * Maps Etel status to internal state
+        * @param aStatus mobile call status
+        * @return session state, see TVtCtlState
+        */
+        /*****************************************************
+        *   Series 60 Customer / ETel
+        *   Series 60  ETel API
+        *****************************************************/
+        static MVtCtlCallControl::TVtCtlState MapState(
+            const RMobileCall::TMobileCallStatus aStatus );
+                
+        /**
+        * Checks if call state transition specified by arguments is legal.
+        * @param aNewState proposed new call state
+        * @param aCurrentState current call state
+        * @return ETrue if transition is valid
+        */
+        static TBool IsLegalNewState(
+            const RMobileCall::TMobileCallStatus aNewState,
+            const RMobileCall::TMobileCallStatus aCurrentState );
+                
+    private:    // Data
+
+        // Data call
+        /*****************************************************
+        *   Series 60 Customer / ETel
+        *   Series 60  ETel API
+        *****************************************************/
+        RMobileCall& iCall;
+        
+        // Observer for call status changes
+        MVtCtlCallStatusObserver& iObserver;
+
+        // Call status and previous status
+        /*****************************************************
+        *   Series 60 Customer / ETel
+        *   Series 60  ETel API
+        *****************************************************/
+        RMobileCall::TMobileCallStatus iCallStatus;
+        RMobileCall::TMobileCallStatus iPreviousStatus;
+    };
+
+#endif      // CVTCTLCALLSTATUSMONITOR_H
+
+// End of File