usbuis/usbuinotif/inc/usbuinotifdialerwatcher.h
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     1 /*
       
     2 * Copyright (c) 2007, 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:  Declares USB dialer activation watcher class
       
    15  *
       
    16 */
       
    17 
       
    18 #ifndef C_USBUINOTIFDIALERWATCHER_H
       
    19 #define C_USBUINOTIFDIALERWATCHER_H
       
    20 
       
    21 #include <e32base.h>
       
    22 #include <coecntrl.h> 
       
    23 #include <viewclipartner.h> 
       
    24 #include <viewcli.h> 
       
    25 
       
    26 
       
    27 /**
       
    28  * Dialer activation callback
       
    29  *
       
    30  * This class specifies the functions when dialer is activated 
       
    31  * or note can be reactivated 
       
    32  * 
       
    33  */
       
    34 class MDialerNotifier
       
    35     {
       
    36 public:
       
    37     /**     
       
    38      * The function to be when Dialaer is activated
       
    39      *          
       
    40      */
       
    41     virtual void DialerActivated() = 0;
       
    42     
       
    43     /**     
       
    44      * The function to be when Dialaer is deactivated
       
    45      * and note can be shown again
       
    46      *          
       
    47      */
       
    48     virtual void ReActivateDialog() = 0;
       
    49     };
       
    50 
       
    51 /** 
       
    52  *
       
    53  * This class will check if application key is pressed when error note is active. 
       
    54  * When application key is pressed dialer view is activated and error notifier is 
       
    55  * informed so it can dismis dialog. When dialer is deactivated error notifier is 
       
    56  * notified that dialog can be again shown.
       
    57  *
       
    58  */
       
    59 NONSHARABLE_CLASS( CUsbuinotifDialerWatcher):  public CCoeControl,  
       
    60                                                public MVwsSessionWrapperObserver  
       
    61 
       
    62     {
       
    63 public:
       
    64     /**
       
    65      * Two-phased constructor.     
       
    66      * @param aDialerKeyNotifier Callback interface for dialer activation/deactivation
       
    67      * @return dialer watcher
       
    68      */
       
    69      
       
    70     static CUsbuinotifDialerWatcher* NewL( MDialerNotifier* aDialerNotifier );
       
    71 
       
    72     /**
       
    73      * Two-phased constructor.
       
    74      * @param aDialerKeyNotifier Callback interface for dialer activation/deactivation     
       
    75      * @return dialer watcher 
       
    76      */
       
    77     static CUsbuinotifDialerWatcher* NewLC( MDialerNotifier* aDialerNotifier  );
       
    78 
       
    79     /**
       
    80      * Destructor
       
    81      */
       
    82     virtual ~CUsbuinotifDialerWatcher();
       
    83     
       
    84 private:
       
    85     
       
    86     /**
       
    87      * From CCoeControl
       
    88      * @param aKeyEvent Key Event
       
    89      * @param aType Type of event
       
    90      */
       
    91     TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType);    
       
    92 
       
    93 private:
       
    94     
       
    95     /**
       
    96      * From MVwsSessionWrapperObserver
       
    97      * @param aEvent View event
       
    98      */
       
    99     void HandleViewEventL(const TVwsViewEvent &aEvent);
       
   100     
       
   101 
       
   102 private:
       
   103 
       
   104     /**
       
   105      * Constructor
       
   106      * @param aDialerKeyNotifier Callback interface for dialer activation/deactivation     
       
   107      */
       
   108     CUsbuinotifDialerWatcher( MDialerNotifier* aDialerKeyNotifier  );
       
   109     
       
   110     /**
       
   111      * Two-phased constructor.
       
   112      */
       
   113     void ConstructL();
       
   114 
       
   115 private:
       
   116     // Member variables
       
   117     
       
   118     /**
       
   119      *  The observer for this objects events
       
   120      *  Not own. 
       
   121      */
       
   122     MDialerNotifier* iNotify;
       
   123     
       
   124     /**
       
   125      *  The observer for this objects events
       
   126      *  Own. 
       
   127      */
       
   128     CVwsSessionWrapper* iwsSession;
       
   129     
       
   130     /**
       
   131      * Is notifier allready notified. 
       
   132      */
       
   133     TBool iNotified;
       
   134     };
       
   135 #endif // C_USBUINOTIFDIALERWATCHER_H