/*
* Copyright (c) 2002-2006 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: Declaration of CPhoneHandlerCallState class.
*
*
*/


#ifndef CPHONEHANDLERCALLSTATE_H
#define CPHONEHANDLERCALLSTATE_H

// INCLUDES
#include <e32base.h>
#include <e32property.h>

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS
class CPhoneHandlerControl;

// CLASS DECLARATION

/**
*  Active object that listens to S60 call states.
*
*  @lib RemConAsy
*  @since S60 3.1
*/
NONSHARABLE_CLASS( CPhoneHandlerCallState ) : public CActive
	{
	public:	// Constructors and destructor
	
		/**
        * Two-phased constructor.
        */
		static CPhoneHandlerCallState* NewL( CPhoneHandlerControl& aControl );
	
		/**
        * Destructor.
        */
		~CPhoneHandlerCallState();
	
	public: // New functions
				
	public: // Functions from base classes
		
	protected:  // New functions
    
    protected:  // Functions from base classes
    
    	/**
        * From CActive. Handles S60 start up state change event.
        */
    	void RunL();
	
		/**
        * From CActive. Implements cancellation of an outstanding Subscibe() 
        * request.
        */
		void DoCancel();
	
	private:
		
		/**
        * C++ default constructor.
        */
		CPhoneHandlerCallState( CPhoneHandlerControl& aControl );
	
		/**
        * By default Symbian 2nd phase constructor is private.
        */
		void ConstructL();
		
		/**
      	* Starts to listen change in S60 start up state.
     	**/
     	void Subscribe();
	
	public:     // Data
    
    protected:  // Data
    
    private:    // Data
    
    	// Publish and Subscribe handle used to listen changes in call states 
    	RProperty iProperty;
						
		// reference to control
        CPhoneHandlerControl& iControl;
		
	public:     // Friend classes

    protected:  // Friend classes

    private:    // Friend classes
	};

#endif // CPHONEHANDLERCALLSTATE_H

// End of File