/*

* Copyright (c) 2008 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:   Event output signal subscriber interface

*

*/

#ifndef ALFEVENTOUTPUTSIGNALSUBSCRIBER_H

#define ALFEVENTOUTPUTSIGNALSUBSCRIBER_H

#include <osn/osndefines.h>

//using namespace osncore;

namespace Alf

    {

/**

 *  Event output signal subscriber interface. 

 */

class IAlfEventOutputSignalSubscriber

	{

public:

    /**

    * Called by event output signal. This method calls subscriber's callback method.

    */

	virtual void receiveSignal() = 0;

	virtual ~IAlfEventOutputSignalSubscriber() {}

	};

/**

 *  Event output signal subscriber. 

 */	

template <class T>

OSN_NONSHARABLE_CLASS( AlfEventOutputSignalSubscriber )

	: public IAlfEventOutputSignalSubscriber

	{

public:

	explicit AlfEventOutputSignalSubscriber(T& aSubscriber, void (T::*aFnc)(void))

		:mSubscriber(aSubscriber), mFnc(aFnc) {}

	void receiveSignal() {(mSubscriber.*mFnc)();}

private: // data

	// Subscriber

	T& mSubscriber;

	// Callback

	void (T::*mFnc)(void);

	};

    } // namespace Alf

#endif // ALFEVENTOUTPUTSIGNALSUBSCRIBER_H