/*
* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:  Base class for Contact and RMU match observers
*
*/


#ifndef FREESTYLEEMAILUICLSMATCHOBSERVERINTERFACE_H
#define FREESTYLEEMAILUICLSMATCHOBSERVERINTERFACE_H

//  INCLUDES
#include <e32base.h>
//#include <cntdef.h>				// TContactItemId

#include <MPsResultsObserver.h>
#include <CPcsDefs.h>

// FORWARD DECLARATIONS
class CRepository;
class CPSRequestHandler;
class CFSEmailUiClsListsHandler;
class CVPbkContactManager;

// CLASS DECLARATION
/**
 * Base class for Contact and RMU match observers
 *
 *
 */
 
class CFSEmailUiClsMatchObserver : public CBase, public MPsResultsObserver
	{
	
public:
	
	static CFSEmailUiClsMatchObserver* CFSEmailUiClsMatchObserver::NewL( CRepository& aCr, 
				CFSEmailUiClsListsHandler& aListsHandler,
				CPSRequestHandler& aRequestHandler,
				CVPbkContactManager* aContactManager );
	
	static CFSEmailUiClsMatchObserver* CFSEmailUiClsMatchObserver::NewLC( CRepository& aCr, 
				CFSEmailUiClsListsHandler& aListsHandler,
				CPSRequestHandler& aRequestHandler,
				CVPbkContactManager* aContactManager);	
	
    /**
     * Destructor.
     *
     */  
  	 virtual ~CFSEmailUiClsMatchObserver();

 public: // New methods
 
   /**
    * Sets new search text and either starts a search or buffers the search 
    * request. 
    *
    * @param aText new search text.
    */
 	virtual void SearchMatchesL( const TDesC& aText );

   /**
    * Sets given input mode to current matcher. 
    *
    * @param aInputMode weather the predictive input mode is to be set on/off.
    *				If EQwerty, multitap mode is set. If EItut predictive mode is set.
    */
 	virtual void SetInputMode( TKeyboardModes aInputMode ); 
 
 public: // From MPsResultsObserver
	
	 virtual void HandlePsResultsUpdate(RPointerArray<CPsClientData>& searchResults,
	 		                                    RPointerArray<CPsPattern>& searchSeqs);
	 void HandlePsResultsUpdateL(RPointerArray<CPsClientData>& searchResults,
	          RPointerArray<CPsPattern>& searchSeqs );
	 
	 virtual void HandlePsError(TInt aErrorCode);
	 virtual void CachingStatus(TCachingStatus& aStatus, TInt& aError);
 protected:

    /**
     * C++ default constructor.
     *
	 * @param aCR refenrence to aknfep cenrep
	 * @param aListsHandler reference to listshandler object.
	 * @param aContactListingService reference to contact listing service object who provides
	 *									matcher object for the MRU list
     *
     */
  	 CFSEmailUiClsMatchObserver( CRepository& aCr, 
  			 					CFSEmailUiClsListsHandler& aListsHandler,
  			 					CPSRequestHandler& aRequestHandler,
  			 					CVPbkContactManager* aContactManager );
	 
	/**
	 * Returns wheather current input mode is predictive (EItut) or QWERTY. 
	 *
	 * @return TKeyboardModes EItut if predictive. EQwerty if anything else.
	 */
	virtual TKeyboardModes GetInputMode();
	
	
	void ConstructL();

 protected: // Functions from base classes

 private:
	
	/**
	 * Chech the status of PCS cache
	 * KErrNone, if Cache is OK. In progress = KErrNotReady, 
	 * not started = KErrNotFound, complete with errors = KErrCorrupt
	 */ 
	 TInt CheckCacheStatusL();

	   /**
	    * Takes a list of email entries linked like in the following example:
	    * "EMAILADDRESS \x001F EMAILADDRESS \x001F EMAILADDRESS" 
	    * Reads the consecutive entries and appends it to an array
	    *
	    * @param aEmail list of email entries linked by <SPACE><UnitSeparator><SPACE>
	    * @param aEmailFields array to which entries are appended
	    
	    */
	 void ChopEmailEntriesList(TPtrC &aEmail, RArray<TPtrC> &aEmailFields);

 protected: // data

	// Pointer to Predictive contact search engine client
	CPSRequestHandler* iRequestHandler;	// owned

	// Pointer to Predictive contact search query object
	CPsQuery* iQuery;
    
	// Refenrence to AknFepCenRep
	CRepository&	iAknFepCenRep;    

    // Reference to lists handler
    CFSEmailUiClsListsHandler& iListHandler;
  
    // What input mode is currently in use. EItut or QWERTY
    TKeyboardModes iInputMode;
    
    CVPbkContactManager* iContactManager;
    
    };

#endif  // FREESTYLEEMAILUICLSMATCHOBSERVERINTERFACE_H



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