ncdengine/inc/ncdinstalloperation.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   Install operation interface definition
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*
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*/
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#ifndef M_NCD_INSTALL_OPERATION_H
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#define M_NCD_INSTALL_OPERATION_H
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#include <e32cmn.h>
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#include "ncdoperation.h"
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#include "ncdinterfaceids.h"
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/**
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 *  Install operation interface.
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 *  
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 *  Install operation handles the installing of an installable node.
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 *  The operation installs one or more files in predefined order.
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 *
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 *  The install process is handled outside of Catalogs Engine, in the
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 *  platform installer.
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 *
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 *  The platform installer has it's own ui, (which is initiated
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 *  automatically) that gives the user more detailed progress information.
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 *
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 *  
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 *  @see MNcdInstallOperationObserver
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 *  @see MNcdNodeInstall
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 */
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class MNcdInstallOperation : public MNcdOperation
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    {
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public:
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    /**
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     * Unique identifier for the interface, required for all MCatalogsBase interfaces.
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     *
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     * 
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     */
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    enum { KInterfaceUid = ENcdInstallOperationUid };
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    /**
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     * Getter for file count. This is the total number of files this operation
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     * is installing.
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     *
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     * 
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     * @return Total number of files to be installed.
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     */
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    virtual TInt FileCount() = 0;
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    /**
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     * Getter for current file index. This is the index of the file that
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     * is currently being installed.
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     *
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     * @return Number of the file currently being installed.
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     */
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    virtual TInt CurrentFile() = 0;
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protected:
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    /**
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    * Destructor.
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    *
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    * @see MCatalogsBase::~MCatalogsBase
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    */
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    virtual ~MNcdInstallOperation() {}
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    };
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#endif //  M_NCD_INSTALL_OPERATION_H