/*

* Copyright (c) 2009 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:  This class implements MProEngAlertToneSeeker interface.

*

*/

#ifndef CPROENGALERTTONESEEKERIMPL_H

#define CPROENGALERTTONESEEKERIMPL_H

// INCLUDES

#include <e32base.h>

#include <MProEngAlertToneSeeker.h>

#include <MCLFOperationObserver.h>

#include    <badesca.h>  // CDesCArray

// FORWARD DECLARATIONS

class MCLFItemListModel;

class MCLFContentListingEngine;

class CProEngPostFilter;

class RFs;

class TParse;

// CLASS DECLARATION

/**

* This class implements MProEngAlertToneSeeker interface.

*

*  @lib ProfileEngine.lib

*  @since 3.1

*/

NONSHARABLE_CLASS( CProEngAlertToneSeekerImpl ) : public CBase,

                                                  public MProEngAlertToneSeeker,

                                                  public MCLFOperationObserver

    {

    public:  // Constructors and destructor

        /**

         * Two-phased constructor.

         */

        static CProEngAlertToneSeekerImpl* NewL();

        /**

         * Destructor.

         */

         virtual ~CProEngAlertToneSeekerImpl();

    public:  // Functions from base classes

        /**

         * From MProEngAlertToneSeeker

         */

        void FetchAlertToneListL( MProEngAlertToneSeekerObserver& aObserver );

        /**

         * From MProEngAlertToneSeeker

         */

        void CancelFetch();

        /**

         * From MCLFOperationObserver

         */

        void HandleOperationEventL( TCLFOperationEvent aOperationEvent,

                                    TInt aError );

    private:  // New functions

        /**

         * Creates the list model to fetch files through CLF.

         */

        void CreateListModelL();

        /**

         * Read the files in ROM and save them in iRomFiles.

         */

        void CreateRomFileListL();

        /**

         * Helper method for CreateRomFileListL() to handle reading of the

         * contents of one directory and adding the files found in ROM file

         * array.

         */

        void AppendRomFilesL( RFs& aFs, const TDesC& aPath, TParse& aParse );

    private:

        /**

         * C++ default constructor.

         */

        CProEngAlertToneSeekerImpl();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private:    // Data

        // Own: Array holding the tones/videos in ROM

        CDesCArray* iRomFiles;

        // Own: Model for files not in ROM

        MCLFItemListModel* iModel;

        // Own: Content listing engine

        MCLFContentListingEngine* iContentListingEngine;

        // Ref: client-implemented observer

        MProEngAlertToneSeekerObserver* iObserver;

        // Own: Post filter for the list model

        CProEngPostFilter* iPostFilter;

    };

#endif      //  CPROENGALERTTONESEEKERIMPL_H

// End of File