/*

* Copyright (c) 2005-2006 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:  Monitor the status of the call.

*

*/

#ifndef MUSCALLCONFERENCEMONITOR_H

#define MUSCALLCONFERENCEMONITOR_H

#include "musunittesting.h"

#include "mussesseioninformationapi.h"

#include "muscallmonitor.h"

#include <etelmm.h>

#include <e32base.h>

class CMusCallConferenceEventMonitor;

/**

 * Monitors the event of call and set the state to property. 

 *

 * @lib musaoplugin.dll

 */

class CMusCallConferenceMonitor : public CActive

    {

    public: 

        /**

         * Two-phased constructor. Leaves on failure.

         * aCall is not owned.

         * @return CMusCallConferenceMonitor object.

         */

        static CMusCallConferenceMonitor* NewL(

                               RMobilePhone& aPhone, RMobileLine& aLine,

                               RPointerArray<CMusCallMonitor>& aCallMonitorArray);

        /**

         * Destructor.

         */

        ~CMusCallConferenceMonitor();     

         /**

          * Checks the Conference Status and 

          * sets the multimediasharing propery key value          

          */

        void SetStateL();  

    private:

        /**

         * C++ constructor.

         */

        CMusCallConferenceMonitor(

                             RMobileLine& aLine,

                             RPointerArray<CMusCallMonitor>& aCallMonitorArray );

        /**

         * Symbian 2nd-phase constructor.

         */

        void ConstructL(RMobilePhone& aPhone);       

        /**

          * Sets the multimediasharing propery key value

          * if the value is same before then dont report it.

          */

        void SetStateL(NMusSessionInformationApi::TMusCallEvent aVal);

        /**

          * Add / Remove Call Monitors based on Mus criteria          

          */

        void MonitorCallL();

    private:

        /**

         * Handles an active object's request completion event.

         */

        void RunL();

        /**

         * cancels of an outstanding request

         */        

        void DoCancel();

         /*

         * Handles a leave occurring in the request completion 

         * event handler RunL().

         * Always return KErrNone since it must handle this error

         * if it comes to this place.

         */

        TInt RunError( TInt aError );

    private: 

        /**

         * Reference of RMobileLine.Not Owned.

         */

        RMobileLine& iLine;

        /**

         * Reference of RMobileConferenceCall.

         */

        RMobileConferenceCall iConfCall;

        /**

         * Conference Event.

         */

        RMobileConferenceCall::TMobileConferenceStatus iConfStatus;

         /**

         * Array of Call Monitors.Not Owned

         */

        RPointerArray<CMusCallMonitor>& iCallMonitorArray;

        /**

         * Monitors the conference call events. For example a particular call

         * which is in conference dropped will be reported as part of

         * conference event.

         */

        CMusCallConferenceEventMonitor* iConfCallEvent;

    };

#endif // MUSCALLCONFERENCEMONITOR_H