/*

* 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:  Video Telephone feature variation class definition.

*

*/

#ifndef T_VTUIFEATUREVARIATION_H

#define T_VTUIFEATUREVARIATION_H

#include <e32base.h>

#include <featmgr.h>

/**

 *  TVtUiVariationBase

 *

 *  Base class for feature variation classes.

 *

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiFeatureVariationBase )

    {

public:

    /**

     * Returns variation feature ID.

     */

    virtual TUint32 FeatureId() const = 0;

protected:

    /**

     * Return whether or not feature is supported by Featuremanager.

     * @return ETrue if feature is supported by Featuremanager.

     */

    virtual TBool IsFeatureSupported( const TUint32 aId) const;

    };

/**

 *  TVtUiHelpVariation

 *

 *  Help variation class. Uses Featuremanager to verify if feture is

 *  supported. This class should be instanced only once and same instance

 *  should be passesd as reference to modules that need this feature variation

 *  information.

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiHelpVariation ) : public TVtUiFeatureVariationBase

    {

public:

    /**

     * Return whether or help variation is supported.

     *

     * @return ETrue if help supported.

     */

    TBool IsHelpSupported() const;

private: // from TVtUiFeatureVariationBase

		TUint32 FeatureId() const;

    };

/**

 *  TVtUiDPVariation

 *

 *  Display Post (DP) variation class. Uses Featuremanager to verify if feture is

 *  supported. This class should be instanced only once and same instance

 *  should be passesd as reference to modules that need this feature variation

 *  information.

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiDPVariation ) : public TVtUiFeatureVariationBase

    {

public:

    /**

     * Return whether or DP variation is supported.

     *

     * @return ETrue if DP supported.

     */

    TBool IsDPSupported() const;

private: // from TVtUiFeatureVariationBase

		TUint32 FeatureId() const;

    };

/**

 *  TVtUiBTVariation

 *

 *  BlueTooth (BT) variation class. Uses Featuremanager to verify if feture is

 *  supported. This class should be instanced only once and same instance

 *  should be passesd as reference to modules that need this feature variation

 *  information.

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiBTVariation ) : public TVtUiFeatureVariationBase

    {

public:

    /**

     * Return whether or BT variation is supported.

     *

     * @return ETrue if BT supported.

     */

    TBool IsBTSupported() const;

private: // from TVtUiFeatureVariationBase

		TUint32 FeatureId() const;

    };

/**

 *  TVtUiSideVolumeKeysVariation

 *

 *  Side volume keys variation class. Uses Featuremanager to verify if feture is

 *  supported. This class should be instanced only once and same instance

 *  should be passesd as reference to modules that need this feature variation

 *  information.

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiSideVolumeKeysVariation ) : public TVtUiFeatureVariationBase

    {

public:

    /**

     * Return whether or Side volume keys variation is supported.

     *

     * @return ETrue if Side volume keys supported.

     */

    TBool IsSideVolumeKeysSupported() const;

private: // from TVtUiFeatureVariationBase

		TUint32 FeatureId() const;

    };

/**

 *  TVtUiActiveIdleFetManVariation

 *

 *  Active Idle feature manager variation class. Uses Featuremanager to verify if feture is

 *  supported. This class should be instanced only once and same instance

 *  should be passesd as reference to modules that need this feature variation

 *  information.

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( TVtUiActiveIdleFetManVariation ) : public TVtUiFeatureVariationBase

    {

public:

    /**

     * Return whether or Acvtive Idle variation is supported.

     *

     * @return ETrue if Acvtive Idle  supported.

     */

    TBool IsActiveIdleFetManSupported() const;

private: // from TVtUiFeatureVariationBase

		TUint32 FeatureId() const;

    };         

#endif // T_VTUIFEATUREVARIATION_H