contentstorage/casrv/cawidgetscanner/inc/cawidgetstoragehandler.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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/*
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 * Copyright (c) 2008 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:
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 *
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 */
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#ifndef C_WIDGETSTORAGEHANDLER_H
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#define C_WIDGETSTORAGEHANDLER_H
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class CCaStorageProxy;
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class CCaWidgetDescription;
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class CCaWidgetScannerParser;
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//  INCLUDES
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#include <e32base.h>
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#include <usif/scr/scr.h>
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#include "cawidgetdescription.h"
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#include "castorage_global.h"
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// CONSTANTS
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// FORWARD DECLARATIONS
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/**
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 *  Widget Parser
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 *
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 *  @since Series Series60 5.x
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 */
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class CCaWidgetStorageHandler : public CBase
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    {
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public:
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CA_STORAGE_TEST_FRIEND_CLASS (T_CaWidgetScanner)
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public:
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    // Constructors and destructor
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    /**
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     * Two-phased constructor.
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     */
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    static CCaWidgetStorageHandler* NewL( CCaStorageProxy* aStorage,
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            Usif::RSoftwareComponentRegistry& aSoftwareRegistry,
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            RFs& aFs );
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    static CCaWidgetStorageHandler* NewLC( CCaStorageProxy* aStorage,
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            Usif::RSoftwareComponentRegistry& aSoftwareRegistry,
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            RFs& aFs );
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    /**
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     * Destructor.
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     */
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    virtual ~CCaWidgetStorageHandler();
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    /**
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     * SynchronizeL - synchronizes widgets on device with database
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     */
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    void SynchronizeL();
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private:
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    /**
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     * Adds widget to storage.
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     * @param aWidget widget to be added
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     */
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    void AddL( const CCaWidgetDescription* aWidget );
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    /**
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     * Updates widget in storage.
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     * @param aWidget widget to be updated
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     * @param aEntryId entry of widget in db
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     */
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    void UpdateL( const CCaWidgetDescription* aWidget, TUint aEntryId );
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    /**
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     * Add/Updates widgets in DB
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     * @param aWidgets widgets to add
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     */
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    void AddWidgetsL( const RWidgetArray& aWidgets );
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    /**
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     * Removes widgets from DB
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     */
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    void RemoveWidgetsL();
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    /**
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     * Fetch widgets from content storage
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     */
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    void FetchWidgetsL();
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    /**
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     * Add widget to download collection
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     * @param aEntry entry containing widget information
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     */
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    void AddWidgetToDownloadCollectionL( const CCaInnerEntry* aEntry );
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    /**
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     * Set missing flag for an entry.
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     * @param aWidget widget.
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     */
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    void SetMissingFlagL( const CCaWidgetDescription * aWidget );
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    /**
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     * Clear missing flag for an entry.
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     * @param aWidget widget.
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     */
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    void ClearVisibleFlagL( const CCaWidgetDescription* aWidget );
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    /**
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     * Set localizations for widget in db
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     * @param aWidget widget.
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     * @param aEntryId of widget.
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     */
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    void SetLocalizationsL( const CCaWidgetDescription* aWidget, TInt aEntryId );
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private:
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    /**
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     * C++ default constructor.
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     */
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    CCaWidgetStorageHandler( CCaStorageProxy* aStorage,
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            Usif::RSoftwareComponentRegistry& aSoftwareRegistry, RFs& aFs );
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    /**
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     * By default Symbian 2nd phase constructor is private.
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     */
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    void ConstructL();
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    /**
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     * Check if mass storage is not in use.
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     * @return true if mass storage is not in use.
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     */
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    TBool MassStorageNotInUse();
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    /**
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     * Adds or updates component id attribute in entry based on SCR provided data
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     * and removable flag - get info from src.
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     * @param aPackageUid uid of the package which the widget represented by aEntry
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     * is delivered with.
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     * @param aEntry widget entry being updated with component id attribute.
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     */
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    void UpdateCompIdAndRemovableFlagL( const TDesC& aManifestFilePathName,
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            CCaInnerEntry& aEntry ) const;
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private:
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    // Data
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    /*
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     * Content Storage. Not Own
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     */
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    CCaStorageProxy* iStorage;
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    /*
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     * File server. Not own
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     */
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    RFs iFs;
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    /*
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     * DB cache for widgets. Own.
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     */
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    RWidgetArray iWidgetDBCache;
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    /**
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     * Pointer to a parser object. Own
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     */
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    CCaWidgetScannerParser* iParser;
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    /*
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     * Software Component Registry. Not own
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     */
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    Usif::RSoftwareComponentRegistry& iSoftwareRegistry;
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    };
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#endif      // C_WIDGETSTORAGEHANDLER_H
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// End of File