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:  receives key pressed notifications

    15 *

    16 */

    17 

    18 #ifndef M_MMVISIBILITYOBSERVER_H

    19 #define M_MMVISIBILITYOBSERVER_H

    20 

    21 #include <coedef.h>

    22 

    23 /**

    24  *  Interface for handling application changing background/foreground states.

    25  *

    26  *  @code

    27  *  @endcode

    28  *  @lib 

    29  *  @since S60 v3.0

    30  *  @ingroup group_mmwidgets

    31  */

    32 class MMmVisibilityObserver

    33     {

    34 public:

    35     

    36     /**

    37      * Called when application goes into foreground (e.g options menu

    38      * goes off or application is opened ).

    39      * 

    40      * @since S60 v5.0

    41      */

    42     virtual void HandleForegroundGainedL() = 0;

    43     

    44     /**

    45      * Called when application goes into background (e.g the options list

    46      * is open and application view is dimmed).

    47      *

    48      * @since S60 v5.0

    49      */

    50     virtual void HandleBackgroundGainedL() = 0;

    51     

    52     };

    53     

    54 #endif // M_MMVISIBILITYOBSERVER_H