// Copyright (c) 2004-2009 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:

// Declares the CSimSysAgent class.

// 

//

/**

 @file

 @internalAll

*/

#ifndef __CSIMPUBSUB_H__

#define __CSIMPUBSUB_H__

#if !defined(__E32BASE_H__)

#include <e32base.h>

#endif

#include <e32property.h>

//forward declarations

class MPSSimObserver;

/**

class CSimPubSub

Requests notification of changes to call status using Publish&Subscribe

This class is a replica of CSimSysAgent but uses the Publish&Subscribe notification mechanism instead of SysAgent

The class is a simple active object derived state machine.

*/

class CSimPubSub : public CActive

	{

public:

	class TPubSubProperty

	/**

	Capture the uids required to subscribe to a property.

	*/

		{

	public:

		TPubSubProperty();

		TPubSubProperty(TUid aCategory, TInt aKey,	TInt aType);

		TBool operator==(const TPubSubProperty& aProperty) const;

	public:

		TUid iCategory;

		TInt iKey;

		TInt iType;

		};

public:

	static CSimPubSub* NewL(MPSSimObserver* aPSSimCallBack, const TPubSubProperty aProperty);

	~CSimPubSub();

	void Start();

protected:

	void RunL();

	void DoCancel();	

private:

	CSimPubSub(MPSSimObserver* aPSSimCallBack, const TPubSubProperty aProperty);

	void ConstructL();

private:

	const CSimPubSub::TPubSubProperty iProperty;

	MPSSimObserver* iPSSimCallBack;	

	RProperty iSubscribe;		

	};

class MPSSimObserver

	{

public:

	// Callback when a call event has occurred.

	virtual void SimPSEvent(const CSimPubSub::TPubSubProperty aProperty, TInt aStatus)=0;

	};

#endif // !defined __CSIMPUBSUB_H__