1 /*

     2 * Copyright (c) 2005, 2006 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:  This implements USBClassChangeUIPluginCRWatcher class.

    15 *

    16 */

    17 

    18 

    19 

    20 // INCLUDE FILES

    21 #include "USBClassChangeUIPluginCRWatcher.h"

    22 #include "UsbWatcherInternalCRKeys.h"

    23 #include "USBClassChangeUIPluginModel.h"

    24 #include "USBClassChangeUIPluginDebug.h"

    25 

    26 

    27 

    28 

    29 // ============================ MEMBER FUNCTIONS ===============================

    30 

    31 // -----------------------------------------------------------------------------

    32 // CUSBClassChangeUIPluginCRWatcher::NewL

    33 // Two-phased constructor.

    34 // -----------------------------------------------------------------------------

    35 //

    36 CUSBClassChangeUIPluginCRWatcher* CUSBClassChangeUIPluginCRWatcher::NewL(

    37     MUSBUICRSettingObserver& aOwner, TUint32 aKey, TBool aOneShot)

    38     {

    39     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher:NewL"));

    40     CUSBClassChangeUIPluginCRWatcher* self 

    41         = new (ELeave) CUSBClassChangeUIPluginCRWatcher(aOwner, aKey, aOneShot);

    42     CleanupStack::PushL( self );

    43     self->ConstructL();

    44     CleanupStack::Pop( self ); 

    45     return self;

    46     }

    47 

    48 

    49 // -----------------------------------------------------------------------------

    50 // CUSBClassChangeUIPluginCRWatcher::~CUSBClassChangeUIPluginCRWatcher

    51 // C++ default destructor

    52 // -----------------------------------------------------------------------------

    53 //    

    54 CUSBClassChangeUIPluginCRWatcher::~CUSBClassChangeUIPluginCRWatcher()

    55     {

    56     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: desctructor"));

    57     Cancel(); // cancels any existing active object orders for iStatus

    58     delete iPersonalityRepository; // deletes CRepository* member object.

    59     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: desctructor complete"));

    60     }

    61 

    62 

    63 // -----------------------------------------------------------------------------

    64 // CUSBClassChangeUIPluginCRWatcher::CUSBClassChangeUIPluginCRWatcher

    65 // C++ default constructor can NOT contain any code, that

    66 // might leave.

    67 // -----------------------------------------------------------------------------

    68 //

    69 CUSBClassChangeUIPluginCRWatcher::CUSBClassChangeUIPluginCRWatcher(

    70     MUSBUICRSettingObserver& aOwner, TUint32 aKey, TBool aOneShot)

    71     : CActive(EPriorityStandard), 

    72     iOwner(aOwner),

    73     iKey(aKey),

    74     iOneShot(aOneShot)

    75     {

    76     }

    77 

    78 

    79 

    80 // -----------------------------------------------------------------------------

    81 // CUSBClassChangeUIPluginCRWatcher::RunError

    82 // Standard active object error function.

    83 // -----------------------------------------------------------------------------

    84 //

    85 

    86 TInt CUSBClassChangeUIPluginCRWatcher::RunError(TInt /*aError*/)

    87     {

    88     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher::RunError: ERROR %d \

    89         from RunL.") );

    90     return KErrNone;

    91     }

    92 

    93 

    94 // -----------------------------------------------------------------------------

    95 // CUSBClassChangeUIPluginCRWatcher::RunL

    96 // This function will be called upon a change in the watched key.

    97 // -----------------------------------------------------------------------------

    98 //

    99 void CUSBClassChangeUIPluginCRWatcher::RunL()

   100     {

   101     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher::RunL"));

   102 

   103     iOwner.SettingChangedL( iKey );        

   104     if (!iOneShot)

   105         {

   106         StartListeningL(); 

   107         }

   108 

   109     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher::RunL complete."));

   110     }

   111 

   112 

   113 // -----------------------------------------------------------------------------

   114 // CUSBClassChangeUIPluginCRWatcher::ConstructL

   115 // Construct member variable iPersonalityRepository that is to access the

   116 // repository. Then start listening of the changes in the repository.

   117 // -----------------------------------------------------------------------------

   118 //

   119 void CUSBClassChangeUIPluginCRWatcher::ConstructL()

   120     {

   121     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: ConstructL"));

   122     CActiveScheduler::Add(this);

   123 

   124     iPersonalityRepository = CRepository::NewL( KCRUidUsbWatcher );

   125     

   126     StartListeningL();

   127     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: ConstructL complete"));        

   128     }

   129 

   130 // -----------------------------------------------------------------------------

   131 // CUSBClassChangeUIPluginCRWatcher::StopListening

   132 // Cancels notifications.

   133 // -----------------------------------------------------------------------------

   134 //

   135 void CUSBClassChangeUIPluginCRWatcher::StopListening()

   136     {

   137     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: StopListening"));

   138     Cancel();

   139     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: StopListening complete"));

   140     }

   141 

   142 // -----------------------------------------------------------------------------

   143 // CUSBClassChangeUIPluginCRWatcher::StartListeningL

   144 // Orders notifications and sets the object active.

   145 // -----------------------------------------------------------------------------

   146 //

   147 void CUSBClassChangeUIPluginCRWatcher::StartListeningL()

   148     {

   149     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: StartListeningL"));

   150     if(IsActive())

   151         {

   152         return;   

   153         }

   154 

   155     User::LeaveIfError(iPersonalityRepository->NotifyRequest(

   156         iKey, 

   157         iStatus ) );

   158     SetActive();

   159     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher: StartListening complete"));

   160     }

   161 

   162 

   163 // -----------------------------------------------------------------------------

   164 // CUSBClassChangeUIPluginCRWatcher::DoCancel

   165 // Standard active object cancellation function.

   166 // -----------------------------------------------------------------------------

   167 //

   168 void CUSBClassChangeUIPluginCRWatcher::DoCancel()

   169     {

   170     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher::DoCancel"));

   171     

   172     if ( iPersonalityRepository )

   173         {

   174         // cancel the order for change notifications

   175         iPersonalityRepository->NotifyCancel( iKey );

   176         }

   177     FLOG(_L("[USBCLASSCHANGEUIPLUGIN]\tCUSBClassChangeUIPluginCRWatcher::DoCancel complete"));

   178     }

   179 

   180 

   181 // End of file