1 /*

     2 * Copyright (c) 2003 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:   Defination for screensaver shared data monitoring.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef C_SCREENSAVERSHAREDDATAMONITOR_H

    21 #define C_SCREENSAVERSHAREDDATAMONITOR_H

    22 

    23 // INCLUDES

    24 #include <e32property.h>

    25 

    26 // CLASS DECLARATION

    27 class CScreensaverSharedDataI;

    28 class CScreensaverRepositoryWatcher;

    29 class CScreensaverEngine;

    30 class CScreensaverView;

    31 class CSubscriber;

    32 

    33 

    34 /**

    35  *  Cscreensavershareddatamonitor

    36  * 

    37  */

    38 class CScreensaverSharedDataMonitor : public CBase

    39     {

    40 public:

    41     // Constructors and destructor

    42 

    43     /**

    44      * Destructor.

    45      */

    46     ~CScreensaverSharedDataMonitor( );

    47 

    48     /**

    49      * Two-phased constructor.

    50      */

    51     static CScreensaverSharedDataMonitor* NewL( CScreensaverSharedDataI* aData );

    52 

    53 private:

    54 

    55     /**

    56      * Constructor for performing 1st stage construction

    57      */

    58     CScreensaverSharedDataMonitor( CScreensaverSharedDataI* aData );

    59 

    60     /**

    61      * EPOC default constructor for performing 2nd stage construction

    62      */

    63     void ConstructL();

    64     

    65     /*

    66     * Returns the pointer of screensaver appui 

    67     */

    68     CScreensaverView* View();

    69     

    70     /*

    71     * Returns the refrence of model instance

    72     */

    73     CScreensaverEngine& Model();

    74     

    75     /**

    76     * detele CSubscriber

    77     */

    78     void DeleteSubscriber( CSubscriber*& aSubscriber );

    79     

    80 private:

    81     

    82     /**

    83     * Callback fuction. Called when the preview mode changed

    84     */

    85     static TInt HandlePreviewModeChanged(TAny* aPtr);

    86 

    87     /**

    88     * Callback fuction. Called when the MMC state changed

    89     */

    90     static TInt HandleMMCStateChanged(TAny* aPtr);

    91 

    92     /**

    93     * Callback fuction. Called when the USB state changed

    94     */

    95     static TInt HandleUSBStateChanged(TAny* aPtr);

    96 

    97     /**

    98     * Callback fuction. Called when the Keyguard state changed

    99     */

   100     static TInt HandleKeyguardStateChanged(TAny* aPtr);

   101 

   102     /**

   103     * Callback fuction. Called when the Call state changed

   104     */

   105     static TInt HandleCallStateChanged(TAny* aPtr);

   106 

   107     /**

   108     * Callback fuction. Called when the ShuttingDown state changed

   109     */

   110     static TInt HandleShuttingDownStateChanged(TAny* aPtr);

   111     

   112 private:

   113     

   114     /*

   115     * The data of model class, Not own 

   116     */

   117     CScreensaverSharedDataI* iData;

   118     

   119     /*

   120     * The Preview mode property and its monitor

   121     */

   122     RProperty iPreviewModeProperty;

   123     CSubscriber* iPreviewModeSubscriber;

   124     

   125     /*

   126     * The MMC property and its monitor

   127     */

   128     RProperty iMMCWatchProperty;

   129     CSubscriber* iMMCWatchSubscriber;

   130     

   131     /*

   132     * The USB property and its monitor 

   133     */

   134     RProperty iUSBWatchProperty;

   135     CSubscriber* iUSBWatchSubscriber;

   136     

   137     /*

   138     * The  KeyGuard state property and its watcher

   139     */

   140     RProperty iKeyguardStateProperty;

   141     CSubscriber* iKeyguardStateSubscriber;

   142     

   143     /*

   144     * The Call state property and its watcher 

   145     */

   146     RProperty iCallStateProperty;

   147     CSubscriber* iCallStateSubscriber;

   148     

   149     /*

   150     * The shutting down property and its watcher 

   151     */

   152     RProperty iShuttingDownProperty;

   153     CSubscriber* iShuttingDownSubscriber;

   154 

   155     };

   156 

   157 #endif // C_SCREENSAVERSHAREDDATAMONITOR_H