/*

* Copyright (c) 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:  Call handler class for svtcallmenu.

*

*/

#ifndef C_SVTCALLSTATEHANDLER_H

#define C_SVTCALLSTATEHANDLER_H

#include <e32base.h>

#include <telmenuextension.h>

/**

 *  Call state handler class for svtmatching.

 *

 *  @lib svtmatching

 *  @since S60 v5.1

 */

NONSHARABLE_CLASS( CSvtCallStateHandler ) : public CBase

    {

public: // Data

    /**

     * Features

     */

    enum TFeature

        {

        ESvmFeatureNone,

        ESvmFeatureConference,

        ESvmFeatureUnattendedTransfer,

        ESvmFeatureAttendedTransfer

        };

public:

    /**

     * Two-phased constructor.

     * @param aCallArray Current call info array.

     */

    static CSvtCallStateHandler* NewL( 

            const RArray<CTelMenuExtension::TCallInfo>& aCallArray );

    /**

     * Destructor.

     */

    virtual ~CSvtCallStateHandler();

    /**

     * Checks is feature supported.

     * @param aFeature - Feature to be checked.

     * @return ETrue if feature supported.

     */    

    TBool FeatureSupported( TFeature aFeature ) const;

private:

    CSvtCallStateHandler();

    void ConstructL( const RArray<CTelMenuExtension::TCallInfo>& aCallArray );

    /**

     * Checks is unattended transfer currently supported.

     * @return ETrue if supported.

     */  

    TBool UnattendedTransferPossible() const;

private: // Data

    /**

     * Current call information.

     */

    RArray<CTelMenuExtension::TCallInfo> iCallArray;

#ifdef _DEBUG    

    friend class T_CSvtCallStateHandler;

#endif

    };

#endif // C_SVTCALLSTATEHANDLER_H