/*

* 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:  Audio Effect view class.

*

*/

#ifndef C_CMPXAUDIOEFFECTSVIEWIMP_H

#define C_CMPXAUDIOEFFECTSVIEWIMP_H

//INCLUDES

#include <mpxplaybackframeworkdefs.h>

#include <mpxviewactivationobserver.h>

#include "mpxaudioeffectsview.h"

// FORWARD DECLARATIONS

class CMPXAudioEffectsModel;

class CMPXAudioEffectsViewContainer;

class MMPXPlaybackUtility;

class CMPXAudioEffectEngine;

class CCustomCommandUtility;

class MMPXViewUtility;

/**

*  CMPXAudioEffectsViewImp, View class for audio settings 

*  

*  @lib mpxaudioeffectsview.dll

*  @since Series 60 3.0

*/

NONSHARABLE_CLASS( CMPXAudioEffectsViewImp ) : public CMPXAudioEffectsView, public MMPXViewActivationObserver

    {

public:

    /**

    * Two-phased constructor

    *

    * @return object of constructed

    */

    static CMPXAudioEffectsViewImp* NewL();

    /**

    * Two-phased constructor

    *

    * @return object of constructed

    */

    static CMPXAudioEffectsViewImp* NewLC();

    /**

    * Destructor

    *

    */

    virtual ~CMPXAudioEffectsViewImp();

protected:

    /**

     * From CAknView

     * Processes user commands.

     *

     * @since 3.0

     * @param aCommand ID of the command to respond to.

     */

    virtual void ProcessCommandL( TInt aCommand );

private:

    /*

    *  Second-phased Constructor

    */

    void ConstructL();

    /*

    *  Privatre Constructor

    */

    CMPXAudioEffectsViewImp();

    /**

    * Change selected item

    */

    void ChangeSelectedItemL();

// from CAknView

    /**

    * From CAknView

    */

    TUid Id() const;

    /**

    * From CAknView

    */

    void HandleCommandL( TInt aCommand );

    /**

    * From CAknView

    */    

    void DoActivateL(

        const TVwsViewId& aPrevViewId,

        TUid aCustomMessageId,

        const TDesC8& aCustomMessage );

    /**

    * From CAknView

    */

    void DoDeactivate();

    // from MMPXViewActivationObserver

    /**

     * From MMPXViewActivationObserver

     * Handle view activation.

     *

     * @param aCurrentViewType Current view type Uid.

     * @param aPreviousViewType Previous view type Uid.

     */

    void HandleViewActivation(

        const TUid& aCurrentViewType,

        const TUid& aPreviousViewType );

    /**

     * @see MMPXViewActivationObserver

     */

    void HandleViewUpdate(

        TUid aViewUid,

        MMPXViewActivationObserver::TViewUpdateEvent aUpdateEvent,

        TBool aLoaded,

        TInt aData);

private: // data

    CMPXAudioEffectsViewContainer* iContainer;

    CMPXAudioEffectsModel* iModel;

    MMPXPlaybackUtility* iPlaybackUtility;  // not own

    TVwsViewId iPreviousView;

    TInt iResourceOffset;

    MMPXViewUtility* iViewUtility;

    TBool iGoPreviousView;

    };

#endif    // C_CMPXAUDIOEFFECTSVIEWIMP_H

// End of File