phonebookui/Phonebook2/UIControls/inc/CPbk2AdaptiveSearchGridFiller.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 25 May 2010 12:26:45 +0300
branchRCL_3
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parent 0 e686773b3f54
child 39 a6539d1e8e43
permissions -rw-r--r--
Revision: 201019 Kit: 2010121
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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:  Phonebook 2 contact editor dialog implementation.
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*
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*/
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#ifndef CPBK2ADAPTIVESEARCHGRIDFILLER_H
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#define CPBK2ADAPTIVESEARCHGRIDFILLER_H
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//  INCLUDES
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#include <e32base.h>
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#include <aknsfld.h>
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#include "CPbk2AdaptiveSearchGridWaiter.h"
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// FORWARD DECLARATIONS
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class CAknSearchField;
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class CFindUtil;
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class CPbk2AdaptiveGrid;
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class MVPbkContactViewBase;
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class MPbk2ContactNameFormatter;
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// CLASS DECLARATION
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/**
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 * Phonebook 2 adaptive search grid filler.
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 * 
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 * This class used to create adaptive search grid used to
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 * search contacts from Phonebook 2.
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 */
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NONSHARABLE_CLASS(CPbk2AdaptiveSearchGridFiller) : public CActive,
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        public MPbk2SearchGridWaiterObserver
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    {
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    public: // Constructors and destructor
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        /**
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         * Creates a new instance of this class.
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         *
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         * @param aField Search field where adaptive search grid is updated.
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         */
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        static CPbk2AdaptiveSearchGridFiller* NewL( CAknSearchField& aField, MPbk2ContactNameFormatter& aNameFormatter );
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        /**
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         * Destructor.
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         */
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        virtual ~CPbk2AdaptiveSearchGridFiller();
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    public: // Interface
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        /**
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         * Start creating adaptive search grid
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         * 
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         * Grid will be created asynchronously. When the grid is updated, it is
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         * automatically updated to the CAknSearchField object provided in the
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         * construction of this object. Client will not be notified when constructing
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         * of the grid is ready.
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         *
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         * @param aModel contains contacts shown in the list box, this is used
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         * 				 to create adaptive search grid
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         * @param aFindText is text user has entered in the find pane.
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         */
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    	void StartFilling( const MVPbkContactViewBase& aView, const TDesC& aSearchString );
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        /**
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         * Stop creating adaptive search grid
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         */
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    	void StopFilling();
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        /**
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         * Clear adaptive search grid cache.
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         * 
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         * Data set (contacts shown in the list box) has changed, e.g. contact is removed or added.
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         * This means that adaptive search grids used before, cannot be reused.
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         */
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    	void ClearCache();
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        /**
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         * Invalidate Adaptive Search Grid
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         * 
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         * This means that even if the adaptive search grid doesn't set, it is still given again to the
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         * Avkon component. If this is not called, then the grid is given to Avkon components only when
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         * it changes.
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         */
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    	void InvalidateAdaptiveSearchGrid();
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    	/**
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         * Change focus back to Adaptive Search Grid
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         * 
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         * This means that even if the "C" key is pressed,the focus will be change to parent control.
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         * But actually this operation is done to Adaptive Search Grid. So set the focus back to it.
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         */
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    	 void SetFocusToAdaptiveSearchGrid();
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    public: // MPbk2SearchGridWaiterObserver
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    	 void GridDelayCompleteL();
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    	 void WaitNoteDismissed();
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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( TInt aError );    	
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    private: // Implementation
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        CPbk2AdaptiveSearchGridFiller( CAknSearchField& aField, MPbk2ContactNameFormatter& aNameFormatter );
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        void ConstructL();
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        CPbk2AdaptiveGrid* KeyMapFromCache( const TDesC& aFindText );
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        void AddKeyMapToCacheL( const TDesC& aFindText, const TDesC& aKeyMap );
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        void SetAdaptiveGridCharsL( const TInt aMaxSpacesNumber, const TInt aSearchStringSpacesNumber );
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        CDesC16Array* SplitContactFieldTextIntoArrayLC( const TDesC& aText );
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        CDesC16Array* SplitSearchFieldTextIntoArrayLC( const TDesC& aText );
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		void BuildGridL( const TDesC& aContactString, const CDesC16Array* aSearchWords, HBufC*& aKeyMap );
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        TInt NumberOfSpacesInString( const TDesC& aSearchString );
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        // Used to judge if this contact's title include drgraphs
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        TBool IsDigraphContactsTitleL(const TDesC& aContactTitle);
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    private: // Data
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		/// Own: Containts adaptive search grid.
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		HBufC* iKeyMap;
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		/// Own: Contacts in the model are processed in a steps, this variable is
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		///      used to hold the next step.
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		TInt iCounter;
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		/// Ref: Search field where use enters the text. Responsible to show adaptive search grid. 
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		CAknSearchField& iSearchField;
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		/// Own: Cache adaptive grid keymaps 
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		RPointerArray<CPbk2AdaptiveGrid> iAdaptiveGridCache;
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		/// Ref: View containing contacts. 
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		const MVPbkContactViewBase* iView;
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		/// Ref: Used to format contact name 
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		MPbk2ContactNameFormatter& iNameFormatter;
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		/// Own: Search string used to match contacts
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		HBufC* iSearchString;
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		/// Own: Find util used to match contacts and construct character grid
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		CFindUtil* iFindUtil;
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		/// Own: Current adaptive search grid. Used to prevent setting same grid multiple times.
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		HBufC* iCurrentGrid;
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		/// Used to invalidate grid, even if the grid remains same, it is anyway set if this is set to
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		/// ETrue
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		TBool iInvalidateAdaptiveSearchGrid;
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		/// Used to get the focus for the search pane,when it is true, the search pane will be drawn and get
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		/// the focus
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		TBool iSetFocusToSearchGrid;
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0
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		/// Used to save the contacts' title which include drgraphs
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		RPointerArray<HBufC> iDigraphContactsTitleArray;
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		/// Own: Used to display wait note if building of grid takes longer than specified time
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		CPbk2AdaptiveSearchGridWaiter* iGridWaiter;
0
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    };
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#endif // CPBK2ADAPTIVESEARCHGRIDFILLER_H
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// End of File