/*
* Copyright (c) 2005-2007 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:  
*
*/


#ifndef MPBK2REMOTECONTACTLOOKUPVISIBILITY_H_
#define MPBK2REMOTECONTACTLOOKUPVISIBILITY_H_

namespace
    {
    enum TVariationFlag
        {
	    EVisibilityUndefined = -1,
	    EVisibilityAlwaysOFF, // 0
	    EVisibilityOFFUntilNotFoundFromLocal, // 1
	    EVisibilityAlwaysON	                  // 2 
	    };    
    }

// forward declarations
class MPbk2CmdItemVisibilityObserver;


class MPbk2RemoteContactLookupVisibilityImpl
    {
    public:
    
        /* Implements decesion logic on whether 
           "Search from remote" promotion is visible or not
           
           Callbacks to client should be implemented in ASYNC
           manner, as this impl may run during client's construction etc
        */   
		virtual void NotifyVisibilityChange() = 0;

        /* @return a reference to TVariationFlag */
        virtual TVariationFlag Variation() = 0;    
    
        /*
        * @param aObserver: (i.e. nameslistcontrol's ready state obj)
        * obj who is interested in visibility on/off events
        */        
        virtual void SetVisibilityObserver(MPbk2CmdItemVisibilityObserver* aObserver) = 0;
    
            
    };


#endif /* MPBK2REMOTECONTACTLOOKUPVISIBILITY_H_*/