// Copyright (c) 2008-2009 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:

// locationdatabus.h

// An ative object wrapper to managed the location data bus. This is the P&S bus

// that the location managers (e.g. the AGPS manager and network manager)

// publish onto. The location server and others subscribe to this bus.

// 

//

/**

 @file

 @InternalComponent

*/

#ifndef __LBSLOCATIONDATABUS_H__

#define __LBSLOCATIONDATABUS_H__

#include <e32base.h>

#include "LbsInternalInterface.h"

#include <lbssatellite.h>

class MDataBusObserver;

/**

The panic codes for the location data bus object.

*/

enum TLocDataBusPanic

	{

	/** 

	An instance of the MLocDataBusObserver has not been passed to the object.

	The panic category will be "LocDataBus". The panic value is zero.

	*/

	ELocDataBusObserverNotSet = 0

	};

/**

Sanity wrapper around the RLbsPositionUpdate

Assume something else has already called RLbsPositionUpdates::InitializeL()!

Don't do this in the ConstructL, just call RLbsPositionUpdates::OpenL

*/

class CAgpsDataBus : public CActive

	{

public:

	static CAgpsDataBus* NewL(MDataBusObserver& aObserver, const TUid& aModuleId);

	~CAgpsDataBus();

	void Subscribe();

	void UnSubscribe();

	TInt GetLastPositionInfo(TPositionSatelliteInfo& satelliteInfo, TTime& actualTime, TUint& aAttributes, TUint& aMode);	

private:

	CAgpsDataBus(MDataBusObserver& aObserver, const TUid& aModuleId);

	void ConstructL();

	// from CActive

	void RunL();

	void DoCancel();

	TInt RunError(TInt aError);

private:

	TUid					iModuleId;

	MDataBusObserver&		iObs;

	RLbsPositionUpdates		iAGPSDataBus; // RProperty wrapper	

	};

#endif // __LBSLOCATIONDATABUS__