satengine/SatServer/EventMonitors/inc/CSatIdleScreenMonitor.h
changeset 46 2fa1fa551b0b
parent 42 35488577e233
child 48 78df25012fda
equal deleted inserted replaced
42:35488577e233 46:2fa1fa551b0b
     1 /*
       
     2 * Copyright (c) 2002-2005 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:  Monitor of idle screen availability.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #ifndef CSATIDLESCREENMONITOR_H
       
    21 #define CSATIDLESCREENMONITOR_H
       
    22 
       
    23 //  INCLUDES
       
    24 #include "MSatSystemStateObserver.h"
       
    25 #include "CSatEventMonitorHandler.h"
       
    26 
       
    27 // CLASS DECLARATION
       
    28 class MSatSystemStateChangeNotifier;
       
    29 
       
    30 /**
       
    31 *  Monitors idle screen state and informs SAT Engine if idle screen is available
       
    32 *
       
    33 *  @lib EventMonitors.lib
       
    34 *  @since Series 60 3.0
       
    35 */
       
    36 class CSatIdleScreenMonitor : public CSatEventMonitorHandler,
       
    37                               public MSatSystemStateObserver
       
    38     {
       
    39     public:  // Constructor and destructor
       
    40 
       
    41         /**
       
    42         * Two-phased constructor.
       
    43         * @param aUtils Interface for Event monitor utils
       
    44         */
       
    45         static CSatIdleScreenMonitor* NewL(
       
    46             MSatEventMonitorUtils& aUtils );
       
    47 
       
    48         /**
       
    49         * Destructor.
       
    50         */
       
    51         virtual ~CSatIdleScreenMonitor();
       
    52 
       
    53     public: // From base class
       
    54 
       
    55         /**
       
    56         * From CSatEventMonitorHandler Cancels event monitoring
       
    57         */
       
    58         void DoCancelMonitor();
       
    59 
       
    60         /**
       
    61         * From MSatSystemStateObserver Notifies that system state changed.
       
    62         */
       
    63         void StateChanged();
       
    64 
       
    65     protected: // New functions
       
    66 
       
    67         /**
       
    68         * From CSatEventMonitorHandler Starts event monitoring
       
    69         * @return Error code indicating the status of starting the monitor
       
    70         */
       
    71         TInt StartMonitor();
       
    72 
       
    73     private:
       
    74 
       
    75         /**
       
    76         * C++ default constructor.
       
    77         * @param aUtils Interface for Event monitor utils
       
    78         */
       
    79         CSatIdleScreenMonitor( MSatEventMonitorUtils& aUtils );
       
    80 
       
    81         // ConstructL
       
    82         void ConstructL();
       
    83 
       
    84     private: // Data
       
    85 
       
    86         // P&S change notifier
       
    87         MSatSystemStateChangeNotifier* iPSNotifier;
       
    88 
       
    89     };
       
    90 
       
    91 #endif      // CSATIDLESCREENMONITOR_H
       
    92 
       
    93 // End of File