/*

* 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: Abstract interface for handling profile change notification

*

*/

#ifndef MPROENGNOTIFYHANDLER2_H

#define MPROENGNOTIFYHANDLER2_H

//  INCLUDES

#include <MProEngNotifyHandler.h>

// FORWARD DECLARATIONS

class MProEngNotifyHandler2Ext;

class MProEngActiveSettingsObserver;

class MProEngMasterSettingsObserver;

// CLASS DECLARATION

/**

* Profiles change notification handler.

* This class is used for registration to get notifications about changes in

* Profiles data.

*

*  @lib ProfileEngine.lib

*  @since S60 3.1

*/

class MProEngNotifyHandler2 : public MProEngNotifyHandler

    {

    public: // New functions

        /**

         * Request notifications of active profile settings. The notifications are

         * received as long as CancelActiveSettingsNotificationsL() or

         * CancelAll() is called. If the client wants to change the observer,

         * he should first cancel these notifications and then re-request them

         * with the new observer instance.

         * @since 10.1

         * @param aObserver Reference to the observer to be notified in the

         *        event of profile activation.

         * @return KErrNone if succesful, KErrAlreadyExists if this notification

         *         handler is already used for requesting profile activation

         *         notifications. In other cases another system wide error code.

         */

        virtual TInt RequestActiveSettingsNotificationsL( 

                MProEngActiveSettingsObserver &aObserver ) = 0;

        /**

         * Request notifications of master settings. The notifications are

         * received as long as CanceltMasterSettingsNotificationsL() or

         * CancelAll() is called. If the client wants to change the observer,

         * he should first cancel these notifications and then re-request them

         * with the new observer instance.

         * @since 10.1

         * @param aObserver Reference to the observer to be notified in the

         *        event of profile activation.

         * @return KErrNone if succesful, KErrAlreadyExists if this notification

         *         handler is already used for requesting profile activation

         *         notifications. In other cases another system wide error code.

         */

        virtual TInt RequestMasterSettingsNotificationsL( 

                MProEngMasterSettingsObserver &aObserver ) = 0;

        /**

         * Cancel the registration for receiving notifications about the active

         * settings modification events.

         * @since 10.1

         */

        virtual void CancelActiveSettingsNotificationsL() = 0;

        /**

         * Cancel the registration for receiving notifications about the master

         * settings modification events.

         * @since 10.1

         */

        virtual void CancelMasterSettingsNotificationsL() = 0;

    public:

        /**

        * Destructor.

        */

        virtual ~MProEngNotifyHandler2() {}

    private: // Extension interface

        /**

        * This member is internal and not intended for use.

        */

        virtual MProEngNotifyHandler2Ext* Extension2() { return NULL; }

    };

#endif      // MPROENGNOTIFYHANDLER2_H

// End of File