/*

* Copyright (c) 2010 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:  Positioning settings engine private class. 

*

*/

#ifndef POSITIONINGSETTINGSENGINE_PRIVATE_H

#define POSITIONINGSETTINGSENGINE_PRIVATE_H

#include "possettingscommon.h"

#include <EPos_MPosModulesObserver.h>

#include <lbtserver.h>

#include <lbtmanager.h>

// Forward declarations

class PosSettingsEngine;

class CPosModules;

class CSuplSettings;

struct TPosModulesEvent;

/**

 * The class defines the interface for receiving position

 * technology change event.The class interested in position

 * technology change should inherit from this class.

 */

class PositionTechnologyChangeObserver

    {

public:

    virtual void handlePositionTechnologyChange() = 0;

    };

/**

 * PositioningSettingsEnginePrivate is a class that provides implementation

 * for PositionSettingsEngine class.

 */

class PosSettingsEnginePrivate : public MPosModulesObserver

    {

public:

    /**

     * Default constructor

     */

    PosSettingsEnginePrivate( PositionTechnologyChangeObserver& 

                                      posTechChangeObserver );

    /**

     * Destructor 

     */

    ~PosSettingsEnginePrivate();

    /**

     * Returns whether specified position technology is available.

     * @param[in] posTechnology Position technology of interest.

     * @return true if specified position technology is available,

     *         false if it is not available.

     */

    bool isPositionTechnologyAvailable( PositionTechnology posTechnology );

    /**

     * Sets the state of position technology.

     * @param[in] posTechnologyState Resultant state of the position technology 

     * after this operation.

     * @param[in] posTechnology State of position technology to be changed.

     * @return KErrNone if successful,

     *         KErrNotFound if specified position technology is not available

     *         Otherwise, standard error code is returned,

     *         KErrServerBusy, etc.. 

     */

    int setPositionTechnologyState( State posTechnologyState,

                                    PositionTechnology posTechnology );

    /**

     * Returns whether specified position technology is enabled. It is recemonded 

     * to use this method after checking the availability of the position technology

     * using isPositionTechnologyAvailable method.

     * @param[in] posTechnology Position technology of interest.

     * @return true if specified position technology is enabled,

     *         false if it is disabled.

     */

    bool isPositionTechnologyEnabled( PositionTechnology posTechnology );

    /**

     * Sets the state of back ground positioning.

     * @param[in] backGroundPosState Resultant state of back ground positioning.

     * @return KErrNone if successful,

     *         KErrNotSupported if none of the position type are available,

     *         KErrArgument if none of the position type are enabled

     *         otherwise, standard error code is returned,

     *         KErrServerBusy, etc.. 

     */

    int setBackGroundPositioningState( State backGroundPosState );    

    /**

     * Returns whether back ground positioning is enabled. It is recemonded 

     * to use this method after checking the availability of the position type

     * using isPositionTypeAvailable method.

     * @return true if back ground positioning is enabled,

     *         false if it is disabled.

     */

    bool isBackGroundPositioningEnabled();

public: // from MPosModulesObserver

    virtual void HandleSettingsChangeL( TPosModulesEvent aEvent );

private:

	  /**

     * Sets the state of given positioning technology.

     * @param[in] posTechnologyState Resultant State of Positioning Technology 

     * StateEnable/StateDisable.

     * @param[in] posTechnology Positioning Technology Name 

     * PositionTechnologyGps/PositionTechnologyNetwork.

     */

    void setPositionTechnologyStateL( State posTechnologyState,

                                PositionTechnology posTechnology );

    /**

     * Sets the state of back ground positioning.

     * @param[in] backGroundPosState Resultant state of back ground positioning.

     */

    void setBackGroundPositioningStateL( State backGroundPosState );

    /**

     * Populates the PSY module information list.

     */

    void populatePsyModuleInfoListL();

    /**

     * Gets the state of back ground positioning.

     */

    void GetBackGroundPositioingStateL();

private: //Data members

    /**

     * Reference to position technology change observer.

     */

    PositionTechnologyChangeObserver& mPosTechChangeObserver;

    /**

     * Pointer to Supl settings object

     * Own

     */

    CSuplSettings* mSuplSettings;

    /**

     * Pointer to lbt server

     * Own

     */

    RLbtServer mLbtServer;

    /**

     * Pointer to lbt manager

     * Own

     */

    RLbtManager mLbtManager;

    /**

     * Pointer to Pos module;

     * Own

     */

    CPosModules* mPosModules;

    /**

     * List of PSY module info

     * Own

     */

    RArray<PsyModuleInfo> mPsyModuleInfoList;

    /**

     * State of back ground positioning

     */

    State mBackGroundPositioningState;

    friend class PosSettingsEngine;

    };

#endif /* POSITIONINGSETTINGSENGINE_PRIVATE_H */