/*

* Copyright (c) 2002 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:  Handles reactivation of the previous profile when the scheduler

*                runs.

*

*/

#ifndef CPROFILECHANGEEVENT_H

#define CPROFILECHANGEEVENT_H

//  INCLUDES

#include <e32base.h>

#include <f32file.h>

// FORWARD DECLARATIONS

class MProfileEngine;

// CLASS DECLARATION

/**

* Profile Change event run by the scheduler when the timer expires.

*

*  @lib ProfileChangeEvent.lib

*  @since S60 3.2

*/

class CProfileChangeEvent : public CBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CProfileChangeEvent* NewL();

        static CProfileChangeEvent* NewLC();

        /**

        * Destructor.

        */

        virtual ~CProfileChangeEvent();

    public: // New functions

        /**

         * Creates an instance of CProfileChangeEvent and calls ChangeProfileL

         * from it.

         */

        static void ExecuteL();

    protected:  // New functions

        /**

         * Reads the ID of the profile to be activated after expiration, shows

         * the note about expiration and activates the new profile. Everything

         * as an atomic operation. If the ID of the profile to be activated is

         * invalid (means: someone just called SetActiveProfileL() after the

         * scheduler started running this dll) does nothing.

         */

        void DoProfileExpirationL();

        /**

        * Reads the ID of the profile which was active before current timed

        * profile.

        * @return ETrue if a valid ID was found.

        */

        TBool ReadProfileIdL();

        /**

         * Activates the profile which was active before timed profile.

         */

        void ChangeProfileL();

        /**

         * Shows the confirmation note about the expiration of the timed

         * profile.

         */

        void ShowNoteL();

        /**

         * Reads the resource for the confirmation note.

         */

        void ReadResourcesL();

    private:

        /**

        * C++ default constructor.

        */

        CProfileChangeEvent();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private:    // Data

        // Own: Profiles Engine for profile activation

        MProfileEngine* iProfileEngine;

        // File server session needed for resource reading:

        RFs iFs;

        // Mutex controlling access to profiles data

        RMutex iMutex;

        // The ID of the profile which should be reactivated

        TInt iPreviousId;

    };

#endif      // CPROFILECHANGEEVENT_H

// End of File