/*

* Copyright (c) 2006-2006 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:  CCallStateSourcePlugIn class declaration.

*

*/

#ifndef C_CALLSTATESOURCEPLUGIN_H

#define C_CALLSTATESOURCEPLUGIN_H

#include <cfcontextsourceplugin.h>

#include <cfcontextobject.h>

#include "PropertyListenerCallBack.h"

class CPropertyListener;

/**

* Call state source.

* Call state source interprets P&S keys related to call state to

* context objects.

* 

* @lib -

* @since S60 4.0

*/

NONSHARABLE_CLASS( CCallStateSourcePlugIn ):

    public CCFContextSourcePlugIn,

    public MPropertyListenerCallBack

    {

    public:

        // Two phased constructors

        static CCallStateSourcePlugIn* NewL( 

        	TContextSourceInitParams* aParams );

        static CCallStateSourcePlugIn* NewLC( 

        	TContextSourceInitParams* aParams );

        // Destructor

        ~CCallStateSourcePlugIn();

    public: // From base classes

        // @see CCFContextSourcePlugIn

    	void HandleSettingL( CCFContextSourceSettingArray* aSettingList );

        // @see CCFContextSourcePlugIn

    	void DefineContextsL();

        // @see CCFContextSourcePlugIn

    	void InitializeL();

        // @see MPropertyListenerCallBack

        void HandlePropertyChangedL();

    private: // New methods

        // Publishes current call state value

        void PublishContextL();

    private:

        CCallStateSourcePlugIn( TContextSourceInitParams* aParams );

    private:

        // Own: Call state property observer

        CPropertyListener* iCallStateProperty;

        // Own: Context

        CCFContextObject* iContext;

    };

#endif//C_CALLSTATESOURCEPLUGIN_H