/*

* 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: isolated collection helper.

*

*/

#ifndef CMPMPXISOLATEDCOLLECTIONHELPER_H

#define CMPMPXISOLATEDCOLLECTIONHELPER_H

#include <mpxcollectionobserver.h>

class CMPXCollectionOpenUtility;

class CMPXCollectionPath;

const TInt KIncrementalNullOffset = 0;

/*!

    \class MpMpxIsolatedCollectionHelperObserver

    \brief Observer interface for class CMpMpxIsolatedCollectionHelper

    This is a helper class to open an insolated collection.

*/

class MMpMpxIsolatedCollectionHelperObserver

{

public:

    virtual void HandleIsolatedOpenL( const CMPXMedia& aEntries, 

            TInt aError ) = 0;

    virtual void HandleIsolatedOpenRestorePathL( const CMPXCollectionPath& aPath,

            TInt aError ) = 0;

};

class CMpMpxIsolatedCollectionHelper : public CBase,

                                      public MMPXCollectionObserver

{

public:

    enum MpOpenMode{

        DefaultMode = 0,

        RestorePathMode 

    };

    static CMpMpxIsolatedCollectionHelper* NewL( MMpMpxIsolatedCollectionHelperObserver* aObserver );

    static CMpMpxIsolatedCollectionHelper* NewLC( MMpMpxIsolatedCollectionHelperObserver* aObserver );

    virtual ~CMpMpxIsolatedCollectionHelper();

    void OpenCollectionL( CMPXCollectionPath& aPath, TInt aIndex = KIncrementalNullOffset, MpOpenMode aMode = DefaultMode );

private:

    CMpMpxIsolatedCollectionHelper( MMpMpxIsolatedCollectionHelperObserver* aObserver );

    void ConstructL();

    void HandleOpenL( const CMPXMedia& aEntries,

                     TInt aIndex,TBool aComplete,TInt aError );

    void HandleOpenL( const CMPXCollectionPlaylist& aPlaylist,TInt aError );

    void HandleCollectionMessage( CMPXMessage* aMsg, TInt aErr );

    void HandleCollectionMediaL( const CMPXMedia& aMedia, TInt aError );

private:

    MMpMpxIsolatedCollectionHelperObserver* iObserver;

    CMPXCollectionOpenUtility*              iIncrementalOpenUtil; //owned

    TBool                                   iFirstIncrementalOpen;

    MpOpenMode                              iOpenMode;

};

#endif // CMPMPXISOLATEDCOLLECTIONHELPER_H

//EOF