widgets/widgetinstaller/inc/WidgetUIOperationsWatcher.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 14 Apr 2010 17:06:56 +0300
branchRCL_3
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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 the License "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:  This file contains the header file of the CWidgetOperationsWatcher class.
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*
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*                This class implements the ECom SWInstUIPluginAPI interface
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*                for midlet installation.
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*
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*
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*/
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#ifndef WIDGETUIOPERATIONWATCHER_H
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#define WIDGETUIOPERATIONWATCHER_H
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//  INCLUDES
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#include <e32base.h>
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#include <SWInstDefs.h>
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#include <SWInstTaskManager.h>
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#include <SWInstLogTaskParam.h>
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#include <widgetregistryclient.h>
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#include <apgcli.h> // RApaLsSession
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#include "cuicanceltimer.h"
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#include "WidgetUIHandler.h"
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#include "IconConverter.h"
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// FORWARD DECLARATIONS
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class CZipFile;
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class CZipFileMemberIterator;
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namespace SwiUI
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{
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// CONSTANTS
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// FORWARD DECLARATIONS
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class CWidgetUIConfigHandler;
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class CWidgetRegistrationManager;
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// CLASS DECLARATION
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/**
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* This class is provided for callback to notify icon conversion completion.
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* @lib WidgetInstallerUI.lib
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* @since 3.1
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*/
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class MConverterController
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    {
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public:
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    /**
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     * notify icon conversion completion
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     */
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    virtual void NotifyCompletionL( TInt aErr ) = 0;
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    };
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/**
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* This class handles the asynchronous install / unsinstall requests.
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*
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* @lib WidgetInstallerUi.lib
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* @since 3.1
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*/
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class CWidgetUIOperationsWatcher :  public CActive,
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                                    public CommonUI::MCUICancellable,
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                                    public MWidgetUICancelObserver,
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                                    public MConverterController
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    {
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public:  // Constructors and destructor
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    /**
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     * Two-phased constructor.
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     */
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    static CWidgetUIOperationsWatcher* NewL();
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    /**
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     * Destructor.
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     */
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    virtual ~CWidgetUIOperationsWatcher();
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public: // New functions
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    /**
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     * Handle install request.
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     * @since 3.1
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     */
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    void InstallL( RFile&, const TDesC8&, TRequestStatus& );
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    /**
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     * Handle silent install request.
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     * @since 3.1
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     */
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    void SilentInstallL( RFile&, const TDesC8&, TRequestStatus& );
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    /**
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     * Handle uninstall request.
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     * @since 3.1
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     */
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    void UninstallL( const TUid& aUid, TRequestStatus& aRequestStatus );
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    /**
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     * Handle silent uninstall request.
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     * @since 3.1
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     */
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    void SilentUninstallL( const TUid&, TRequestStatus& );
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    /**
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     * Called when installation or update is finished, do the final
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     * steps of registration, file clean up (remove temporary files,
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     * display complete message, or handle error.
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     */
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    void FinishInstallL();
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    /**
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     * Called when uninstallation is finished, do the final steps of
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     * deregistration, etc, display complete message, or handle error.
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     */
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    void FinishUninstallL( TInt aErr );
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    /**
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     * Called when install or uninstallation is finished, to update installer log
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     */    
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    void HandleLogsL(const TDesC& aWidgetName, const TUid &aUid,TBool aVendor,const TDesC& version,SwiUI::TLogTaskAction aAction);
0
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public: // Functions from base classes
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    /**
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     * From CActive, Called by framework when request is finished.
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     * @since 3.1
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     */
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    void RunL();
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    /**
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     * From CActive, Called by framework when request is cancelled.
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     * @since 3.1
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     */
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    void DoCancel();
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    /**
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     * From CActive, Handles a leave occurring in the request completion
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     * event handler RunL().
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     * @since 3.1
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     */
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    TInt RunError( TInt aError );
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    /**
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     * From MWidgetUICancelObserver, Called when user has cancelled
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     * the operation.
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     * @since 3.1
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     */
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    void UserCancelL( TBool aCancelImmediately = ETrue );
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    /**
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     * From MCUICancellable, Indicates if a modal dialog is currently shown.
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     */
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    TBool IsShowingDialog();
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    /**
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     * From MCUICancellable, Cancels the installation engine.
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     */
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    void CancelEngine();
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    /**
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     * From MCUICancellable, Called when nothing else has worked.
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     */
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    void ForceCancel();
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    /**
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     * From MCUICancellable, Called to indicate that the cancelling progress
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     * has been started.
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     */
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    void StartedCancellingL();
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    /**
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     * Used for notify icon convertion complete
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     */
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    void NotifyCompletionL( TInt aErr ) ;
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private:
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    /**
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     * C++ default constructor.
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     * @param aRequestStatus - Status of the request.
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     */
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    CWidgetUIOperationsWatcher();
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    /**
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     * 2nd phase constructor.
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     */
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    void ConstructL();
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    /**
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     * @since 5.0
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     */
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    void InstallSubfunctionL( RFile& aFile, TBool& userCancel,
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                              TRequestStatus& aRequestStatus );
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    /**
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     * Create widget entry by parsing the info.plist, insert the entry into the entry list
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     * if the entry is not already existing.
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     * @return the existed widget's index if already present
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     * @since 3.1
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     */
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    TInt PreprocessWidgetBundleL();
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    /**
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     * Prompt user to choose mamory to install/update the widget
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     * @return true if user choose a momory unit, Leaves if user's choosed memory is not sufficient
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     * @since 3.1
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     */
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    TBool SelectMemoryL();
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    /**
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     * update basepath of widget
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     * @since 3.1
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     */
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    void UpdateWidgetBasePathL( TDriveUnit& aDrive );
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    /**
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     * Start the icon convertion
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     * @since 3.1
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     */
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    void ConvertIconL( TUid& aUid, const TDesC& aIconPath );
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    /**
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     * Prompt user to install and select memory to use
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     * @since 3.1
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     */
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    TBool PromptUserForInstallL( TBool aOverwrite );
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    /**
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     * Prompt user with security warning about installing
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     * untrusted widgets
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     * @since 5.0
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     */
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    TBool PromptUserForUntrustedWidgetL( );
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    /**
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     * When overwriting an installed widget, backup so can restore on error
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     * @since 3.1
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     */
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    void BackupL();
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    /**
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     * When overwriting an installed widget, restore on error
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     * @since 3.1
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     */
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    void RestoreL();
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    /**
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    *In the process of uninstallation if widget is running the widget should be first closed and then uninstalled
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    *@since 5.0
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    */
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    void HandleWidgetCommandL( RApaLsSession& aSession,const TDesC& aWidget,const TUid& aUid,TUint32 aOperation );
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0
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private: // Data
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    // A few state variables with the normal case complexity being
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    // that icon processing runs in parallel with unzipping so if
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    // unzipping ends first then final steps are triggered by icon
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    // processing completion and if icon processing ends first then
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    // unzipping triggers the final steps.  If cancelling either by
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    // user or some external system event, then final steps are
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    // triggered by DoCancel().
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    TBool iUnzipping;
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    TBool iOverwriting;
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    TBool iProcessingIcon;
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    TBool iIconSearchFinished; // search in zip archive
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    TInt iIconError;
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    TBool iCancelled;
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    // TODO: may need to implement silent mode in future
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    TBool iSilent; // silent mode
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    TRequestStatus* iRequestStatus; // pointer to request status of caller
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    CFileMan* iFileMgr; // owned
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    RFs iRfs; // owned
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    CZipFile* iZipFile; // owed
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    CZipFileMemberIterator* iMembers; // owned
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    RWidgetRegistryClientSession iRegistry;
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    TBool iServerConnected; // to Widget Registry server
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    CWidgetUIHandler* iUIHandler; // owned
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    CWidgetUIConfigHandler* iWidgetConfigHandler; // owned
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    CWidgetRegistrationManager* iAppManager; // owned
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   // active object to asynchronously convert png icon to mbm
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    CIconConverter* iIconConverter; // owned
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    TFileName iOriginalDir; // for overwrite backup/restore
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    TFileName iBackupDir; // for overwrite backup/restore
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    // these values mainly come from parsing bundle metadata file
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    // (info.plist) and are passed to WidgetRegistry for registration.
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    RPointerArray<CWidgetPropertyValue> iPropertyValues;
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    // task manager pointer for install logs
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    CTaskManager* iTaskManager; 
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    // TODO: To be investigated
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    //CommonUI::CCUICancelTimer* iCanceller;
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    TFileName iWidgetName;  // save the widget name during overwrite (only for HS widgets)
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    TBool iWidgetInHS;      // indicates whether the widget was in HS
0
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    };
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}
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#endif      // WIDGETUIOPERATIONWATCHER_H
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// End of File