/*

* 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:   Install operation interface definition

*

*/

#ifndef M_NCD_INSTALL_OPERATION_H

#define M_NCD_INSTALL_OPERATION_H

#include <e32cmn.h>

#include "ncdoperation.h"

#include "ncdinterfaceids.h"

/**

 *  Install operation interface.

 *  

 *  Install operation handles the installing of an installable node.

 *  The operation installs one or more files in predefined order.

 *

 *  The install process is handled outside of Catalogs Engine, in the

 *  platform installer.

 *

 *  The platform installer has it's own ui, (which is initiated

 *  automatically) that gives the user more detailed progress information.

 *

 *  

 *  @see MNcdInstallOperationObserver

 *  @see MNcdNodeInstall

 */

class MNcdInstallOperation : public MNcdOperation

    {

public:

    /**

     * Unique identifier for the interface, required for all MCatalogsBase interfaces.

     *

     * 

     */

    enum { KInterfaceUid = ENcdInstallOperationUid };

    /**

     * Getter for file count. This is the total number of files this operation

     * is installing.

     *

     * 

     * @return Total number of files to be installed.

     */

    virtual TInt FileCount() = 0;

    /**

     * Getter for current file index. This is the index of the file that

     * is currently being installed.

     *

     * @return Number of the file currently being installed.

     */

    virtual TInt CurrentFile() = 0;

protected:

    /**

    * Destructor.

    *

    * @see MCatalogsBase::~MCatalogsBase

    */

    virtual ~MNcdInstallOperation() {}

    };

#endif //  M_NCD_INSTALL_OPERATION_H