/*

* Copyright (c) 2005-2007 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: Observer interface for active idle engine

*

*/

#ifndef __FMRADIOACTIVEIDLEENGINENOTIFYHANDLER_H__

#define __FMRADIOACTIVEIDLEENGINENOTIFYHANDLER_H__

#include <fmradiointernalpskeys.h>

/**

* Observer interface for active idle engine.

* The observer is notified about the changes in relevant keys through this interface.

*/

NONSHARABLE_CLASS(MFMRadioActiveIdleEngineNotifyHandler)

    {

    public:

        /**

        * Invoked when the radio volume has changed.

        * @param    aVolume     The new radio volume.

        */

        virtual void HandleRadioVolumeChangeL( TInt aVolume ) = 0;

        /**

        * Invoked when tuning has taken more than one second, or tuning was previously on, but now completed.

        * @param    aTuningState    The new tuning state.

        */

        virtual void HandleTuningStateChangeL( TFMRadioPSTuningState aTuningState ) = 0;

        /**

        * Invoked when a new channel has been tuned into.

        * @param    aIndex      The index of the channel.

        */

        virtual void HandleChannelChangeL( TInt aIndex ) = 0;

        /**

        * Invoked when a channel has been modifed.

        * @param    aIndex    The index of the channel that was modified.

        */

        virtual void HandleChannelModifyL( TInt aIndex ) = 0;

        /**

        * Invoked when the frequency has changed.

        * @param    aFrequency      The new frequency.

        */

        virtual void HandleFrequencyChangeL( TInt aFrequency ) = 0;

        /**

        * Invoked when the muting state has changed.

        * @param    aMuteState    The new mute state.

        */

        virtual void HandleMuteStateChangeL( TFMRadioPSRadioMuteState aMuteState ) = 0;

        /**

        * Invoked when the application's running state has changed.

        * @param    aRunningState   The new running state.

        */

        virtual void HandleApplicationRunningStateChangeL( TFMRadioPSApplicationRunningState aRunningState ) = 0;

        /**

        * Invoked when the used decimal count is changed.

        * @param    aDecimalCount   The new decimal count.

        */

        virtual void HandleFrequencyDecimalCountChangeL( TFMRadioPSFrequencyDecimalCount aDecimalCount ) = 0;

        /**

        * Invoked when the antenna's connectivity status is changed.

        * @param    aAntennaStatus      Antenna's new connectivity status.

        */

        virtual void HandleAntennaStatusChangeL( TFMRadioPSHeadsetStatus aAntennaStatus ) = 0;

        /**

        * Invoked when radio's power state changes.

        * @param    aPowerState      The new power state.

        */

        virtual void HandlePowerStateChangeL( TFMRadioPSRadioPowerState aPowerState ) = 0;

        /**

        * Invoked when RDS Program Service information changes.

        * @param    aProgramService      New Program Service info.

        */

        virtual void HandleRDSProgramServiceChangeL( const TDesC& aProgramService ) = 0;

        /**

        * Invoked when RDS Text information changes.

        * @param    aRdsText      New Program Service info.

        */        

        virtual void HandleRDSRadioTextChangeL( const TDesC& aRdsText ) = 0;

        /**

        * Invoked when Channel name changes.

        * @param    aName      New channel name.

        */  

        virtual void HandleChannelNameChangeL( const TDesC& aName ) = 0;

        virtual void HandlePresetListCountChangeL( TInt aPresetCount ) = 0;

        virtual void HandlePresetListFocusChangeL( TInt aPresetFocus ) = 0;

    };

#endif // __FMRADIOACTIVEIDLEENGINENOTIFYHANDLER_H__