/*

* 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 header.

*

*/

#ifndef POSSUPLSETTINGSENGINEPRIVATE_H

#define POSSUPLSETTINGSENGINEPRIVATE_H

#include "possuplsettingscommon.h"

#include <QList>

#include <epos_msuplsettingsobserver.h>

class CServerParams;

class CSuplSettings;

//Constants

const int KMaxHSLPAddrLen = 256;

const int KMaxIAPLen = 256;

/**

 * The class defines the interface for receiving SUPL settings

 *  change event.

 */

class PosSuplSettingsChangeObserver

    {

public:

     virtual void handleSuplSettingsChange( MSuplSettingsObserver::TSuplSettingsEventType aEvent,int aSlpId) = 0;

    };

/**

 * The class defines the interface for listing,enabling\disabling and deleting

 * SLP servers.

 */

class PosSuplSettingsEnginePrivate : public MSuplSettingsObserver

    {

public:

    /**

     * Default constructor

     */

	PosSuplSettingsEnginePrivate();

    /**

     * Destructor

     */

    ~PosSuplSettingsEnginePrivate();

    /**

     * Returns properties of all servers from SUPL settings storage..

     * @[OUT] paramValues Array of retrieved server entries

     *         - KErrNone if SUPL settings are retrieved successfully.

     *         - KErrNotFound if the settings does not have any server entry

     */

    int GetServerList( QList<PosServerParams>& aParamValues );

     /**

     * This method is used to change parameter which indicates whether server

     * can be used for SUPL session or not.

     *

     * @param [IN] slpId SLP ID for which the parameter needs to be changed

     * @param [IN] enableFlag Flag to indicate whether server can be enabled or not

     * @return one of the following error codes:

     *         - KErrNone if SUPL settings are changed successfully.

     *         - KErrArgument if the SLP ID passed is not valid

     *         - KErrGeneral if changing SUPL settings has failed

     */

    int  SetServerStatus( int aSlpId,

                          bool aEnableFlg

    					);

    /**

     * This method is deletes server entry from SUPL settings storage.

     *

     * @param [IN] slpId Server identity for which the entery needs to be deleted from the SUPL settings storage

     *

     * @return one of the following error codes:

     *         - KErrNone if entry is deleted successfully

     *         - KErrNotFound if the specified server identity does not exists in settings storage

     *         - KErrGeneral if changing SUPL settings has failed

     *

     */

    int RemoveServer( int aSlpId);

    /**

     * Returns list all servers from SUPL settings storage that can be deleted.Operator configured servers will be omitted from

     * this list.

     * @[OUT] paramValues Array of retrieved server entries

     *         - KErrNone if SUPL settings are retrieved successfully.

     *         - KErrNotFound if the list does not have any server entry

     */

    int GetRemovableServerList( QList<PosServerParams>& aParamValues );

       /* @param [IN] observer The observing object.

	    * @return one of the following values

	    * 	- KErrNone if setting observer is successful

	    * 	- KErrAlreadyExists if observer is already set

	    *

        */

    int SetObserver( PosSuplSettingsChangeObserver* aObserver );

public:

    void HandleSuplSettingsChangeL( TSuplSettingsEventType aEvent,TInt aSlpId );

    void HandleSuplTriggerStatusChangeL( CSuplSettings::TSuplTriggerStatus aSuplTriggerStatus );

private: //Data members

    /**

     * Reference to position technology change observer.

     * Does not own

     */

    PosSuplSettingsChangeObserver* mPosSuplSettingsObserver;

    /**

     * Pointer to Supl settings object

     * Owns

     */

    CSuplSettings* mSuplSettings;

    /**

     * Pointer to Supl Server List

     * Owns

     */

    RPointerArray<CServerParams> mServerList;

    };

#endif /* POSSUPLSETTINGSENGINEPRIVATE_H */