/*

* 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:  Wait note dialog for scanning

*

*/

#ifndef C_MPXSCANNINGNOTEDIALOG_H

#define C_MPXSCANNINGNOTEDIALOG_H

#include "mpxwaitnotedialog.h"

class MMPXHarvesterUtility;

/**

 *  Wait note class for the scanning cases

 *

 *  @lib mpxwaitnotedialog.dll

 *  @since S60 3.1

 */

class CMPXScanningWaitDialog : public CMPXWaitNoteDialog

    {

public:

    /**

    * Two-phased constructor

    */

    static CMPXScanningWaitDialog* NewL( MMPXWaitNoteObserver* aObs,

                                         TWaitNoteType aType );

    /**

    * Virtual destructor

    */

    virtual ~CMPXScanningWaitDialog();

protected: // CMPXWaitNoteDialog

    /**

    * Initialize the note before executing

    * The inherited class should set CBA, text, icons etc here

    */

    void PreNoteDisplayHandleL();

    /**

    * Post note dissmissal handling

    * @arg aButtonId, button ID that the note was cancelled with

    */

    void PostNoteHandleL( TInt aButtonId );

    /**

    * From MMPXCollectionObserver

    */

    void HandleCollectionMessage(

        CMPXMessage* aMessage, TInt aError );

private: 

    /**

    * Handle DB Corruption, cleans up both harvester and collection

    */

    void HandleDatabaseCorruptionL();

private:

    /**

    * Private constructor

    */

    CMPXScanningWaitDialog( MMPXWaitNoteObserver* aObs,

                            TWaitNoteType aType );

    /**

    * Second phased constructor

    */

    void ConstructL();

    /**

     * Handle collection message

     * 

     * @param aMessage collection message

     */

    void DoHandleCollectionMessageL( const CMPXMessage& aMessage );

    /**

     * Helper function used inside DoHandleCollectionMessageL

     */

    inline TInt GetTrackCountL(TInt aDrive,TInt aColDbId, TInt aColTable);

    static TInt AsyncCallHarvesterEventL( TAny* aSelf );

private:

    enum TAsyncEvent

    	{

    	ECmdIdle,

    	ECmdScan,

    	ECmdCancleScan   	

    	};

private: // data

    MMPXHarvesterUtility*  iHarvesterUtil;

    TInt                   iNumItemsAdded;

    TInt                   iScanningError;

    TInt                   iTotalNewTracks;

    /**

     * The total songs in  (Mass Storage + MMC) CollectionDB before refresh

     */

    TInt                   iInitialCount;

    /**

     * Flag of music library

     * ETrue when total songs in CollectionDB changed 

     *       or new songs added to CollectionDB

     * EFalse when CollectionDB has no change

     */

    TBool                  isCollectionDBChanged;

    CAsyncCallBack*        iAsyncCallBack; //owned

    TAsyncEvent            iAsyncEvent;

    TBool                  iCancelScan;

    };

#endif // C_MPXSCANNINGNOTEDIALOG_H