/*

* Copyright (c) 2006-2008 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:  Representation of SVP MT session

*

*/

#ifndef SVPMTSESSION_H

#define SVPMTSESSION_H

#include <mccpcall.h>

#include "svpsessionbase.h"

#include "svputdefs.h"

/**

 *  Class which acts as SVP MT session.

 *  Contains all the SVP MT session specific methods.

 *

 *  @lib svp.dll

 *  @since S60 3.2

 */

class CSVPMtSession : public CSVPSessionBase              

    {

public:

    /**

    * Two-phased constructor.

    */

    static CSVPMtSession* NewL( CMceInSession* aMtSession,

                                TMceTransactionDataContainer& aContainer,

                                TUint32 aServiceId,

                                TUint32 aVoIPProfileId,

                                MSVPSessionObserver& aObserver,

                                CSVPUtility& aSVPUtility,

                                CSVPRtpObserver& aRtpObserver,

                                TInt aKeepAliveValue,

                                TBool aPreconditions );

    /**

    * Destructor.

    */

    virtual ~CSVPMtSession();

public: // from base classes: MCCPCall

    /**

    * Answers to an incoming session.

    * @since Series60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Answer();

    /**

    * Rejects an incoming call.

    * @since Series 60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Reject();

    /**

    * Reguests to queue the call. 

    * @since S60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Queue();

    /**

    * Send 180 Ringing

    * @since S60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Ringing();

    /**

    * From MCCPMtSession. Return boolean value, is incoming session forwarded or not.

    * @since Series60 3.2

    * @return ETrue if session is forwarded, else EFalse

    */

    TBool IsCallForwarded() const;

    /**

    * Returns boolean value, is the session mobile originated.

    * @since Series60 3.2

    * @return TBool ETrue if session is mobile originated, otherwise EFalse

    */

    TBool IsMobileOriginated() const;

    /** 

    * Calls sessions destructor

    * @since Series60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Release();

    /**

    * Puts the specified session on hold.

    * @since Series60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Hold();

    /**

    * Resumes the session.

    * @since Series60 3.2

    * @return KErrNone if successful or system wide error code

    */

    TInt Resume();

    /**

    * Handles remote action after session is established.

    * @since Series60 3.2

    * @param None

    * @return

    */

    TInt IncomingRequest( CMceInSession* aUpdatedSession );

private: // new methods

    /**

    * Handles sink/source enabling for Mt streams

    * @since Series 60 3.2

    * @param aStreams array of streams in Mt session

    */

    void HandleMtStreamsL( const RPointerArray< CMceMediaStream >& aStreams );

    /**

     * Worker functio to answer an incoming session.

     * @since Series60 3.2

     * @return void

     */

    void DoAnswerL();

// From CSVPSessionBase

    /**

     * Sets RTP keep-alive timer value and payload

     * @since Series 60 3.2

     * @param aSession MCE session

     * @param aSessionUpdateOngoing Flag determines whether session udpate is needed

     * @return void

     */

    void SetRtpKeepAliveL( CMceSession* aSession, 

                           TBool aSessionUpdateOngoing );

private:

    /**

    * C++ default constructor.

    */

    CSVPMtSession( CMceInSession* aMtSession,

                   TMceTransactionDataContainer& aContainer,

                   TUint32 aVoIPProfileId,

                   MSVPSessionObserver& aObserver,

                   CSVPUtility& aSVPUtility,

                   CSVPRtpObserver& aRtpObserver,

                   TInt aKeepAliveValue,

                   TBool aPreconditions );

    /**

     * Symbian 2nd phase construction

     */

    void ConstructL( TUint32 aServiceId );

private:

    // For testing

    SVP_UT_DEFS

    };

#endif // SVPMTSESSION_H