phonebookui/Phonebook2/inc/CPbk2DuplicateContactFinder.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 10:12:17 +0200
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/*
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* Copyright (c) 2005-2007 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:  Utility class for finding duplicate contacts
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*                from the stores.
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*
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*/
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#ifndef CPBK2DUPLICATECONTACTFINDER_H
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#define CPBK2DUPLICATECONTACTFINDER_H
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#include <e32base.h>
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#include <MVPbkContactFindObserver.h>
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#include <MVPbkSingleContactOperationObserver.h>
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class CVPbkContactManager;
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class MVPbkContactStore;
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class MVPbkBaseContact;
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class MVPbkContactLinkArray;
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class MVPbkContactOperationBase;
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class MVPbkFieldTypeList;
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class MPbk2ContactNameFormatter;
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class MPbk2DuplicateContactObserver;
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class MVPbkBaseContactField;
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/**
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 * Utility class for finding duplicate contacts from the stores.
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 * Finds duplicates from stores by using the name formatter.
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 */
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class CPbk2DuplicateContactFinder : public CActive,
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                                    private MVPbkContactFindObserver,
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                                    private MVPbkSingleContactOperationObserver
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    {
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    public: // Construction and destruction
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        /**
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         * Constructs a duplicate finder that finds duplicate contacts
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         * from all the stores.
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         *
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         * @param aContactManager       Virtual Phonebook contact manager
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         *                              that owns the field types and can
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         *                              be used for finding the stores.
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         * @param aNameFormatter        Name formatter for recognizing
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         *                              duplicate contacts.
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         * @param aFieldTypesForFind    These are the field types that are
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         *                              usedfor the find. Most probably the
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         *                              same field types as are in the sort
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         *                              order. These define also the order
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         *                              for getting the find text.
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         *                              E.g if last name is the first in
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         *                              the list and first name is the second
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         *                              one then the last name is taken from
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         *                              the given contact and that text is
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         *                              used for the find. If there was no
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         *                              last name in the contact then the
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         *                              first name text is taken.
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         * @param aDuplicateContacts    The result array for
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         *                              duplicate contacts.
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         * @return  A new instance of this class.
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         */
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        IMPORT_C static CPbk2DuplicateContactFinder* NewL(
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                CVPbkContactManager& aContactManager,
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                MPbk2ContactNameFormatter& aNameFormatter,
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                const MVPbkFieldTypeList& aFieldTypesForFind,
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                RPointerArray<MVPbkStoreContact>& aDuplicateContacts );
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        /**
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         * Destructor.
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         */
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        virtual ~CPbk2DuplicateContactFinder();
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    public: // Interface
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        /**
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         * Starts asynchronous duplicate find from the given store.
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         *
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         * @param aContact              The source contact whose duplicates
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         *                              are searched for.
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         * @param aStore                A store for creating find operation.
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         * @param aObserver             An observer to notify after the
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         *                              checking has been done.
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         * @param aMaxDuplicatesToFind  Finder stops if the it finds more
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         *                              than max amount of duplicates.
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         */
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        IMPORT_C void StartL(
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                const MVPbkBaseContact& aContact,
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                MVPbkContactStore& aStore,
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                MPbk2DuplicateContactObserver& aObserver,
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                TInt aMaxDuplicatesToFind );
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        /**
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         * Starts asynchronous duplicate find from all the stores.
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         *
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         * @param aContact              The source contact whose duplicates
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         *                              are searched for.
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         * @param aObserver             An observer to notify after the
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         *                              checking has been done.
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         * @param aMaxDuplicatesToFind  Finder stops if the it finds more
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         *                              than max amount of duplicates.
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         */
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        IMPORT_C void StartL(
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                const MVPbkBaseContact& aContact,
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                MPbk2DuplicateContactObserver& aObserver,
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                TInt aMaxDuplicatesToFind );
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    private: // From CActive
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        void RunL();
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        void DoCancel();
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        TInt RunError(
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                TInt aError );
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    private: // From MVPbkContactFindObserver
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        void FindCompleteL(
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                MVPbkContactLinkArray* aResults );
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        void FindFailed(
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                TInt aError );
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    private: // From MVPbkSingleContactOperationObserver
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        void VPbkSingleContactOperationComplete(
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                MVPbkContactOperationBase& aOperation,
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                MVPbkStoreContact* aContact );
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        void VPbkSingleContactOperationFailed(
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                MVPbkContactOperationBase& aOperation,
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                TInt aError );
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    private: // Implementation
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        CPbk2DuplicateContactFinder(
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                CVPbkContactManager& aContactManager,
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                MPbk2ContactNameFormatter& aNameFormatter,
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                const MVPbkFieldTypeList& aFieldTypesForFind,
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                RPointerArray<MVPbkStoreContact>& aDuplicateContacts );
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        void ConstructL();
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        void IssueRequest();
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        TPtrC FindText();
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        MVPbkContactOperationBase* FindOperationL(
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                const TDesC& aFindText );
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        void StartFindL();
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        void RetrieveContactL();
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        void CompleteL();
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        TBool LastContactRetrieved();
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        void DestroyOperation();
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        void CheckDuplicateL(
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                MVPbkStoreContact* aContact );
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        TBool IsFieldMatched( const MVPbkBaseContact* aContact, TInt aFieldId );
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        const MVPbkBaseContactField* FindFieldById( const MVPbkBaseContact* aContact, 
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                TInt aFieldId );
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    private: // Data
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        /// Ref: Virtual Phonebook contact manager
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        CVPbkContactManager& iContactManager;
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        /// ReF: Name formatter
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        MPbk2ContactNameFormatter& iNameFormatter;
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        /// Ref: These are the field types that are used for find
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        const MVPbkFieldTypeList& iFieldTypesForFind;
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        /// Own: A pointer to find text
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        TPtrC iFindText;
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        /// Ref: A store for single store check
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        MVPbkContactStore* iStore;
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        /// Ref: Observer
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        MPbk2DuplicateContactObserver* iObserver;
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        /// Ref:: A contact whose duplicates are searched for
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        const MVPbkBaseContact* iContactToCompare;
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        /// Own: a title of iContactToCompare
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        HBufC* iContactTitle;
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        /// Own: Find operation
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        MVPbkContactOperationBase* iContactOperation;
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        /// Own: Results of the find
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        MVPbkContactLinkArray* iFindResults;
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        /// Ref: Duplicate contacts
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        RPointerArray<MVPbkStoreContact>& iDuplicates;
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        /// An index in iFindResults for retrieving.
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        TInt iContactIndex;
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        /// Internal state of the finder
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        TInt iState;
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        /// The maximum amount of duplicates to find
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        TInt iMaxDuplicatesToFind;
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    };
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#endif // CPBK2DUPLICATECONTACTFINDER_H
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// End of File