1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Interface for controls that want to be informed about lock status

    15  *

    16 */

    17 

    18 

    19 #ifndef __LOCKAPPSTATEOBSERVER_H__

    20 #define __LOCKAPPSTATEOBSERVER_H__

    21 

    22 // INCLUDES

    23 #include <e32std.h>

    24 #include <e32base.h>

    25 #include "lockapp.hrh"

    26 

    27 /**

    28  *  CLockAppStateObserver class offers a lockstate observer interface. 

    29  *  All observer classes derived from MLockAppStateObserver should be added to 

    30  *  the lockapp observer list in order to get notifications about lock state changes.

    31  *

    32  *  @lib    lockapp

    33  *  @since  5.0

    34  *  @author Joona Petrell

    35  *  @author Tamas Koteles

    36  */

    37 class MLockAppStateObserver

    38 	{

    39 	public:

    40 

    41 		/**

    42 		 * Lock status changes are handled trough HandleLockStatusChangedL method.

    43 		 * Must be overriden by derived class for observing.

    44 		 */

    45 		virtual void HandleLockStatusChangedL( TLockStatus aLockStatus ) = 0;

    46 

    47 	};

    48 

    49 #endif // __LOCKAPPSTATEOBSERVER_H__

    50 // End of File