1 /*

     2 * Copyright (c) 2009 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:

    15 *

    16 */

    17 #ifndef CXUIAPPLICATIONFRAMEWORKMONITOR_H

    18 #define CXUIAPPLICATIONFRAMEWORKMONITOR_H

    19 

    20 #include <QObject>

    21 

    22 class CxeSettings;

    23 class CxuiApplication;

    24 class CxuiApplicationFrameworkMonitorPrivate;

    25 

    26 /*!

    27 * Application Framework Monitor.

    28 */

    29 class CxuiApplicationFrameworkMonitor : public QObject

    30 {

    31     Q_OBJECT

    32     Q_ENUMS(ForegroundState)

    33 

    34 public:

    35     /*!

    36     * Foreground state enumeration.

    37     */

    38     enum ForegroundState

    39     {

    40         /*! Note or dialog partially owns foreground */

    41         ForegroundPartiallyLost,

    42         /*! Other application owns foreground */

    43         ForegroundFullyLost,

    44         /*! This application owns foreground */

    45         ForegroundOwned

    46     };

    47 

    48 public:

    49     CxuiApplicationFrameworkMonitor(CxuiApplication &application, CxeSettings &settings);

    50     virtual ~CxuiApplicationFrameworkMonitor();

    51 

    52 public:

    53     ForegroundState foregroundState() const;

    54     bool isUsbMassMemoryModeActive() const;

    55 

    56 signals:

    57     /*!

    58     * Signal that foreground state has changed.

    59     * @param t New foreground state.

    60     */

    61     void foregroundStateChanged(CxuiApplicationFrameworkMonitor::ForegroundState t);

    62 

    63     /*!

    64     * Signal battery being empty. Device is ecpected to power down at any moment.

    65     */

    66     void batteryEmpty();

    67 

    68     /*!

    69     * USB mass memory mode was just activated or deactivated.

    70     * @param active If true, mass memory mode was activated, and mass memory cannot be accessed.

    71     * Otherwise mass memory mode was deactivated, and mass memory is again accessible.

    72     */

    73     void usbMassMemoryModeToggled(bool active);

    74 

    75 

    76 private:

    77     CxuiApplicationFrameworkMonitorPrivate *p;

    78 

    79     friend class CxuiApplicationFrameworkMonitorPrivate;

    80 };

    81 

    82 #endif // CXUIAPPLICATIONFRAMEWORKMONITOR_H