/*

* Copyright (c) 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:  Location Trigger Creation and monitoring

*

*/

#ifndef __LBTTRIGGERADAPTER_H__

#define __LBTTRIGGERADAPTER_H__

#include <lbt.h>

#include <lbtsessiontrigger.h>

#include <lbtgeocircle.h>

#include <lbttriggerfiringeventnotifier.h>

#include <lbttriggerinfo.h> 

#include <lbttriggerfilterbyattribute.h> 

#include "lbtcontexttriggerobserver.h"

#include "lbttriggernode.h"

/*

 * A handle to the trigger creation and handling mechanism.

 * This class is responsible for creating triggers and monotoring them.

 */

NONSHARABLE_CLASS( CLocationTriggerAdapter ) :

public CActive,

public MLbtTriggerFiringEventObserver

    {

    public:

        /*

         * Default constructor for CLocationTriggerAdapter class.

         * 

         * @param[in] aObserver Handle of the source plugin. The pointer is noted 

         * for calling the virtual functions implemented by the source plugin. 

         */

        CLocationTriggerAdapter( MLBTContextTriggerObserver& aObserver );

        /*

         * Default destructor.

         */

        ~CLocationTriggerAdapter();

        /*

         * Creates the trigger for the given input node.

         * 

         * @param[in] aTriggerNode Object of TTriggerNode type. 

         * Contains specifications of trigger to be created.

         */

        void CreateContextTriggerL(TTriggerNode& aTriggerNode);

        /*

         * Intialises the lbt server and opens sessions to it.

         * The observer for trigger changes is also started here.

         */

        void ConstructL();

        /*

         * Two phase constructor for CLocationTriggerAdapter

         */

        static CLocationTriggerAdapter* NewL( MLBTContextTriggerObserver& aObserver );

        /*

         * Two phase constructor for CLocationTriggerAdapter

         */

        static CLocationTriggerAdapter* NewLC( MLBTContextTriggerObserver& aObserver );

    public:

        /*

         * Derived from CActive

         */

        void RunL();

        /*

         * Derived from CActive

         */

        void DoCancel();

        /*

         * Derived from CActive

         */

        TInt RunError( TInt aError );

        /*

         * Derived from MLbtTriggerFiringEventObserver

         */

        void TriggerFiredL( const TLbtTriggerFireInfo& aFireInfo );

        /*

         * Delete all triggers owned by LBT Context Source Plugin here

         * This function is called when an update settings call occurs. 

         */

         void DeleteAllTriggersL();

    private: 

        /*

         * Pointer to Trigger Fire notifier

         */

        CLbtTriggerFiringEventNotifier* iNotifier;

        /*

         * Holds the trigger id,context name,trigger name

         */

        TriggerList iTriggerList;

        /*

         * Handle to LBT Server

         */

        RLbtServer iLbtServ;

        /*

         * Handle to LBT session for trigger creation

         */

        RLbt iLbt;

        /*

         * Handle to LBT session for trigger monitoring

         */

        RLbt iLbtNotifier;

        /*

         * Obsever for trigger fire changes

         */

        MLBTContextTriggerObserver& iObserver;

    };

#endif // __LBTTRIGGERADAPTER_H__