/*

* Copyright (c) 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:  Video session interface.

*

*/

#ifndef MVTENGSESSIONINFO_H

#define MVTENGSESSIONINFO_H

//  INCLUDES

#include <e32std.h>

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

*  Abstraction for video telephony session with remote end.

*

*  @lib videoteleng

*  @since 2.6

*/

class MVtEngSessionInfo

    {

    public: // 

        /**

        * Session state

        * EIdle           Session not established.

        * EInitializing   Initializing MO session

        * ERemoteAlerting Remote end is alerting

        * EReceiving      Incoming session request from network

        * EConnected      Connection to peer is established.

        * ENegotiating    Handshaking with peer.

        * EOpen           Session active and media channels are open.

        * EClearing       Clearing connection.

        */

        enum TSessionState 

            {

            EUnknown = -1,

            EIdle,

            EInitializing,

            ERemoteAlerting,

            EReceiving,

            EConnected,

            ENegotiating,

            EOpen,

            EClearing

            };

        typedef TTimeIntervalSeconds TDuration;

        /**

        * Session direction

        * EDirectionNone In idle there's no direction .

        * EDirectionMO   Mobile originated sesison

        * EDirectionMT   Mobile terminated session

        */

        enum TDirection 

            {

            EDirectionNone,

            EDirectionMO,

            EDirectionMT

            };

        enum { KCallNameLength = 50 };

        typedef TBuf<KCallNameLength> TCallName;

        /**

        * CLI data related to a call

        */

        struct TCLI {

            // call id of the call

            TInt iCallId;

            // caller name

            TCallName iName;

            // indicates if voice call can be made to peer

            TBool iVoiceCallPossible;

            };

        /**

        * Returns session state

        * @aForcedRefresh if ETrue current state is forced to update.

        * Should be EFalse when called in frequently because forced

        * refresh is more time consuming (requires context switch)

        * @return

        */

        virtual TSessionState State( TBool aForcedRefresh ) const = 0;

        /**

        *

        * @return direction

        */

        virtual TInt GetDirection( TDirection& aDirection ) const = 0;

        /**

        *

        * @param 

        * @param aEnabled

        */

        virtual TInt GetDuration( 

            TDuration& aDuration,

            TBool& aEnabled ) const = 0;

        virtual TInt GetCLI( TCLI& aCLI ) const = 0;

    };

#endif      // TVTENGSESSIONINFO_H

// End of File