/*

* 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:    Publish & Subscribe event observer for PoC

*

*/

#ifndef MCEPOCOMACSCALLWATCHER_H

#define MCEPOOMACCSCALLWATCHER_H

//  INCLUDES

#include <CTSYDomainPSKeys.h>

#include <e32property.h>

#include <e32svr.h>

#include "MCEPoCOmaCsStateObserver.h"

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

*  Handles PubSub events

*/

class CMCEPoCOmaCSCallWatcher: public CActive

    {

    public:

        /**

        * Creates instance of the CMCEPoCOmaCSCallWatcher class.

        */

        static CMCEPoCOmaCSCallWatcher* NewL( MMcePoCOmaCSStateObserver* aObserver );

        /**

        * Destructor.

        */

        virtual ~CMCEPoCOmaCSCallWatcher();

    private: // constructors

        /**

        * C++ default constructor.

        */

        CMCEPoCOmaCSCallWatcher();

        /**

        * Symbian OS constructor.

        */

        void ConstructL( MMcePoCOmaCSStateObserver* aObserver );

    public:

        /**

        * Starts asynchronic subscribe of PubSub event

        *

        * @return KErrNone if no errors and KErrInUse if already subscribed

        */

        TInt Subscribe();

        /**

        * Stops asynchronic subscribe of PubSub event

        */

        void StopSubscribe();

    private: // from CActive

        /**

        * Translates TPSTelephonyCallState state to TPoCCsState state

        *

        * @param aPSCsCallState State of call from PubSub

        * @return TPoCCsState PubSub CS call state translated to PoC CS call state

        */

        TPoCOmaCsState TranslateToPoCCsState( TPSCTsyCallState aCallState );

        /**

        * see CActive::RunL()

        */

        void RunL();

        /**

        * see CActive::Error()

        */

        TInt RunError( TInt aError );

        /**

        * see CActive::DoCancel()

        */

        void DoCancel();

    public:

        /**

        * For subscribing CS call events

        *

        * @param aObserver Pointer to caller.

        */

     //   void AddObserverL( const MMcePoCOmaCSStateObserver* aObserver );

        /**

        * For unsubscribing CS call events

        *

        * @param aObserver Pointer to caller.

        */

       // void RemoveObserver( const MMcePoCOmaCSStateObserver* aObserver );

        /**

        * For getting call state

        */

        TPoCOmaCsState CsState();

    private: // data

        /**

        * Handle to Publish & Subscribe

        */

        RProperty                	iProperty;

        /**

        * Array holding pointers to CS status observers

        */

        MMcePoCOmaCSStateObserver* iCsCallNotify;

    private: // friend

    };

#endif      // POCOMACSCALLWATCHER_H   

// End of File