uifw/AvKon/inc/AknAdaptiveSearch.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:00:49 +0200
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/*
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* Copyright (c) 2005 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 __AKNADAPTIVESEARCH_H__
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#define __AKNADAPTIVESEARCH_H__
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// INCLUDES
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#include "AknAdaptiveSearchGrid.h"
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#include "AknAdaptiveSearchGridObserver.h"
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#include <cenrepnotifyhandler.h>    // CenRep for AS
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// FORWARD DECLARATIONS
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class CAknSearchField;
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class MAdaptiveSearchTextObserver;
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class CRepository;
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//class CCenRepNotifyHandler;
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// CLASS DECLARATION
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/**
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 *  The class to provide adaptive search for the application
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 *
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 *  @lib avkon.lib
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 *  @since Series 60 5.0
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 */
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class CAknAdaptiveSearch : public CBase, 
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                           public MAknAdaptiveSearchGridObserver,
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                           public MCenRepNotifyHandlerCallback,
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			               public MCoeControlObserver								   
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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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     * @param aTextLimit The limit length of search field
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     * @param aFieldStyle The same flag as search fi1eld
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     * @return Pointer to the created adaptive search grid object
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     */
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    static CAknAdaptiveSearch* NewL( const TInt aTextLimit, TInt aFieldStyle);
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    /**
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     * Two-phased constructor.
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     *
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     * @param aTextLimit The limit length of search field
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     * @param aFieldStyle The same flag as search field.
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     * @return Pointer to the created adaptive search grid object
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     */
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    static CAknAdaptiveSearch* NewLC( const TInt aTextLimit, TInt aFieldStyle );
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        /**
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         * Destructor.
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         */
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         ~CAknAdaptiveSearch();
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    public:  // From MAknAdaptiveSearchGridObserver
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        /**
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         * Handles an event from an observed adaptive search grid
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         *
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         * @param aCommand The control which sent the event        
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         */       
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         void ProcessCommandL( TInt aCommand );
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    public:  // From MCoeControlObserver
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        /**
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         * From MCoeControlObserver. Handles an event from an observed control.
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         * If this component has observer, then a EEventStateChanged is sent 
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         * to it when a item is selected from the grid
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         * 
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         * @param aControl The control that sent the event.
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         * @param aEventType The event type. 
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         */     
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	     void HandleControlEventL( CCoeControl *aControl, TCoeEvent aEventType );
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   public: // from MCenRepNotifyHandlerCallback     
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         void HandleNotifyInt( TUint32 aId, TInt aNewValue ); 	   
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   public: // New functions           
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        /**
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         * Shows adaptive search grid.
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         */
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         void ShowAdaptiveSearchGridL();        
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    	/**
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         * Hides adaptive search grid.
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         */
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         void HideAdaptiveSearchGridL();           
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  		/**
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         * Invert adaptive search grid.
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         * @param aSelectAll If true, select all content in adaptive search editor.
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         */
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         void InvertAdaptiveSearchGridVisibilityL( TBool aSelectAll = EFalse );
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        /**
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      	 *  Set characters for buttons to adaptive search grid
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      	 *        	 
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      	 *  @param aGridChars The characters for adaptive search grid.      	 
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         */
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	     void SetButtonCharsL( const TDesC& aGridChars );
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	    /**
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	     * Sets a search field for this control.
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	     *	     
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	     * @param aSearchField A pointer to a search field object.
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	     */	
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	     void SetSearchField( CAknSearchField *aSearchField );
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	   /** 
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    	* Adds an adaptive search text observer. Duplicates are not checked 
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    	* (i.e. adding the same observer multiple times is not prevented). 
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   		* 
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   		* @since 5.0 
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    	* @param aObserver Must be non-NULL. 
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    	*/ 
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    	void AddAdaptiveSearchTextObserverL( MAdaptiveSearchTextObserver* aObserver );
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       /** 
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    	* Removes an adaptive search text observer. 
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    	* 
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    	* @since 5.0 
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   	 	* @param aObserver The observer to be removed. 
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    	* @return ETrue if removal ok, EFalse if observer was not removed (not 
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    	* found from the list of observers). 
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    	*/ 
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    	TBool RemoveAdaptiveSearchTextObserver( MAdaptiveSearchTextObserver* aObserver );	
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    	/**
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    	 * Update adaptive search grid skin.
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    	 */
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    	void UpdateGridSkinL();
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   public:
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    	/**
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         * When the rect of find pane is set, this functions will be notified
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         * to record the size of it.
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    	 */
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    	void SaveFindPaneRect( const TRect &aRect );
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   private: // Constructors
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         /**
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          * C++ default constructor.
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          */
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          CAknAdaptiveSearch();          
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    /**
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     * Symbian 2nd phase constructor.
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     *
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     * @param aTextLimit The limit length of search field
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     * @param aFieldStyle The same flag as search field
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     */
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    void ConstructL( const TInt aTextLimit, TInt aFieldStyle );       
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   private: // Member variables	    
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	    // Observer to report adaptive search text changes, not owned
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       	MAdaptiveSearchTextObserver* iAdaptiveSearchTextObserver; 
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       	CAknAdaptiveSearchGrid* iAdaptiveSearchGrid;              	       	
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       	CAknSearchField* iSearchField; // not owned
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       	// Chars of grid from filtered items
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       	HBufC* iGridChars;       	
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       	// Limit length of search field 
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       	TInt iTextLimit;  
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       	TBool iBlockFlag;	  
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        // Handle to Central Repository.
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        CRepository* iCenRep;    
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        // For CenRep value change notifications. 
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        CCenRepNotifyHandler* iCenRepNotifyHandlerChinese;  
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        CCenRepNotifyHandler* iCenRepNotifyHandlerPRC;
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        CCenRepNotifyHandler* iCenRepNotifyHandlerTW;
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        CCenRepNotifyHandler* iCenRepNotifyHandlerHongkong;        	  
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    };
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#endif // __AKNADAPTIVESEARCH_H__
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// End of File
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