/*

* Copyright (c) 2007 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:  Declarations for class CSPEtelDtmfMonitor

*

*/

#ifndef CSPETELDTMFMONITOR_H

#define CSPETELDTMFMONITOR_H

#include <e32base.h>

#include <etelmm.h>

#include <rmmcustomapi.h>

class CSPCall;

class CSPDTMFProvider;

/**

* Monitors ETel for DTMF events.

*

*  This monitor is applied only for listening incoming calls, i.e.

*  line capabilites are not monitored.

*

*  @lib csplugin.dll

*  @since S60 v3.2

*/

class CSPEtelDtmfMonitor: public CActive

    {

    public: //Constructors and descructor

        /**

        * Two-phased constructing for the monitor.

        *

        * @param aObserver the observer for getting notification

        * @param aMmCustom Custom API handle

        */

        static CSPEtelDtmfMonitor* NewL( 

                CSPDTMFProvider& aObserver,

                RMmCustomAPI& aMmCustom );

        /**

        * C++ default destructor

        */

        virtual ~CSPEtelDtmfMonitor( );

        /**

        * Start monitoring call events

        * @since S60 3.2

        */

        void StartMonitoring();

    protected: // From CActive

        /**

        * From CActive

        * RunL

        * @since S60 3.2

        */

        void RunL();

        /**

        * From CActive

        * Cancels the monitor

        * @since S60 3.2

        */

        void DoCancel();

    private:

        /**

        * C++ default constructor

        * @param aObserver the observer for status change (incoming call)

        * @param aMmCustom Custom API handle

        */

        CSPEtelDtmfMonitor( CSPDTMFProvider& aObserver,

                            RMmCustomAPI& aMmCustom );

    private: // data

        /**

        * Forwards events.

        */

        CSPDTMFProvider& iObserver;

        /**

        * Event data. Updated when event occurs.

        */

        RMmCustomAPI::TDtmfInfo      iEventData;

        /**

        * Custom API reference.

        */

        RMmCustomAPI& iMmCustom;

    };

#endif // CSPETELDTMFMONITOR_H