// 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:

//

/**

 @file

 @InternalComponent

*/

#ifndef ADAPTATIONPOSITIONER_H

#define ADAPTATIONPOSITIONER_H

#include <lbs/epos_cpositioner.h>

#include "cpositionerenvironment.h"

#include "mpositioner.h"

#include "lbstimer.h" // for MLbsCallbackTimerObserver & CLbsCallbackTimer

class CRequestHandler;

class TRequestParameters;

class CAdaptationPositioner : public CPositioner,

							  public MLbsCallbackTimerObserver,

                       		  public MPositioner

    {

    public:

        virtual ~CAdaptationPositioner();

    public:

        // From CPositioner.

        virtual void NotifyPositionUpdate(TPositionInfoBase& aPosInfo, TRequestStatus& aStatus) = 0;

        virtual void CancelNotifyPositionUpdate();

        virtual void CancelNotifyPositionUpdate(TInt aError);

        virtual TBool TrackingOverridden() const;

        virtual void StartTrackingL(const TTimeIntervalMicroSeconds& aInterval);

        virtual void StopTracking();

        // From MPositioner

        virtual void RequestCompleteNotify(const TPositionInfo& aPositionInfo, TInt aError, TTime& aActualTime);

        virtual void ReportStatus(const TPositionModuleStatus& aStatus);

		virtual TBool IsActive();

		virtual void UpdateFailed(TInt aError);		

		virtual TBool IsWarmingDown();

		TUint InactivityTimeout();

    	// from MLbsCallbackTimerObserver

		void OnTimerEventL(TInt aTimerId);

		TInt OnTimerError(TInt aError, TInt aTimerId);

		enum TEventId // timer event ID at request queue level

			{

			EMaxFixTimerEvent = 0,

			EWarmDownTimerEvent

			};

    private:

		void UpdateTrackingTime(TTime& aTimeNow);

		void SetTrackingTime();

        void MaxFixTimerEvent();

        TInt MaxFixTimerError(TInt /*aError*/);

        void WarmDownTimerEvent();

        TInt WarmDownTimerError(TInt /*aError*/);

        TBool IsAccurate(const TPositionInfo& aPositionInfo);

    protected:

        CAdaptationPositioner();

        virtual void SetModuleId(TPositionInfoBase* aPosInfo) = 0;

		void SetupTrackingRequestL();

		TBool UseLastLocation(TPositionInfoBase& aPosInfo);

        void StartMaxFixTimerL();

        void StopMaxFixTimer();

        void StartWarmDownTimerL();

        void StopWarmDownTimer();

 		TBool IsTracking();

        void ClearPositionInfo(TPositionInfoBase& aPosInfo);

        TBool CompleteRequest(const TPositionInfo& aPositionInfo, TInt aError);

	protected:

		enum TTrackingState

			{

			ERequestStatePreTracking	= 0x01,

			ERequestStateTracking		= 0x02

			};

		enum TRequestState

			{

			ERequestStateInitial		= 0x01,

			ERequestStatePostInitial	= 0x02

			};

        TPositionInfoBase*			iPosInfo;

        TRequestStatus*				iClientStatus;

		CRequestHandler*			iRequestHandler;

		CPositionerEnvironment*		iEnvironment;

		TBool						iActive;

		TTimeIntervalMicroSeconds	iTrackingInterval;

		TTime 						iTargetTime;

		TTimeIntervalMicroSeconds	iTimeOutInterval;

		TPositionCriteria			iCriteria;

		TRequestState 				iState;

		TUint						iInactivityTimeout;

    private:

    	CLbsCallbackTimer* iMaxFixTimer;

    	CLbsCallbackTimer* iWarmDownTimer;

    };

#endif

// End of File