1 /*

     2  * Copyright (c) 2008-2009 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: Listen cellular data usage key changes in central repository.

    15  *

    16  */

    17 

    18 #include <e32base.h>

    19 #include <centralrepository.h>

    20 #include <cmmanagerkeys.h>

    21 #include <cmgenconnsettings.h>

    22 

    23 #include "mpmlogger.h"

    24 #include "mpmserver.h"

    25 #include "mpmdatausagewatcher.h"

    26 

    27 // ---------------------------------------------------------------------------

    28 // Default C++ constructor.

    29 // ---------------------------------------------------------------------------

    30 //

    31 CMpmDataUsageWatcher::CMpmDataUsageWatcher( CMPMServer* aServer ) :

    32     CActive( EPriorityStandard ), iServer( aServer )

    33     {

    34     MPMLOGSTRING( "CMpmDataUsageWatcher::CMpmDataUsageWatcher" )

    35 

    36     CActiveScheduler::Add( this );

    37     }

    38 

    39 // ---------------------------------------------------------------------------

    40 // Symbian 2nd phase constructor. Creates a central repository object.

    41 // ---------------------------------------------------------------------------

    42 //

    43 void CMpmDataUsageWatcher::ConstructL()

    44     {

    45     MPMLOGSTRING( "CMpmDataUsageWatcher::ConstructL" )

    46 

    47     iRepository = CRepository::NewL( KCRUidCmManager );

    48     }

    49 

    50 // ---------------------------------------------------------------------------

    51 // Creates a new object by calling the two-phased constructor.

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

    53 //

    54 CMpmDataUsageWatcher* CMpmDataUsageWatcher::NewL( CMPMServer* aServer )

    55     {

    56     MPMLOGSTRING( "CMpmDataUsageWatcher::NewL" )

    57 

    58     CMpmDataUsageWatcher* self = new( ELeave ) CMpmDataUsageWatcher( aServer );

    59     CleanupStack::PushL( self );

    60     self->ConstructL();

    61     CleanupStack::Pop( self );

    62     return self;

    63     }

    64 

    65 // ---------------------------------------------------------------------------

    66 // Destructor.

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

    68 //

    69 CMpmDataUsageWatcher::~CMpmDataUsageWatcher()

    70     {

    71     MPMLOGSTRING( "CMpmDataUsageWatcher::~CMpmDataUsageWatcher" )

    72 

    73     Cancel();

    74     delete iRepository;

    75     }

    76 

    77 // ---------------------------------------------------------------------------

    78 // Order notification from changes.

    79 // ---------------------------------------------------------------------------

    80 //

    81 void CMpmDataUsageWatcher::StartL()

    82     {

    83     MPMLOGSTRING( "CMpmDataUsageWatcher::StartL" )

    84 

    85     // Request notification

    86     User::LeaveIfError( iRepository->NotifyRequest( KCurrentCellularDataUsage,

    87             iStatus ) );

    88     SetActive();

    89 

    90     // Get value from central repository

    91     User::LeaveIfError( iRepository->Get( KCurrentCellularDataUsage,

    92             iCellularDataUsage ) );

    93     }

    94 

    95 // ---------------------------------------------------------------------------

    96 // From class CActive.

    97 // Event is received when there is a change in central repository key.

    98 // ---------------------------------------------------------------------------

    99 //

   100 void CMpmDataUsageWatcher::RunL()

   101     {

   102     MPMLOGSTRING( "CMpmDataUsageWatcher::RunL" )

   103 

   104     User::LeaveIfError( iStatus.Int() );

   105 

   106     // Request new notification

   107     User::LeaveIfError( iRepository->NotifyRequest( KCurrentCellularDataUsage,

   108             iStatus ) );

   109     SetActive();

   110 

   111     TInt oldCellularDataUsage = iCellularDataUsage;

   112 

   113     // Get the new value from central repository

   114     User::LeaveIfError( iRepository->Get( KCurrentCellularDataUsage,

   115             iCellularDataUsage ) );

   116 

   117     // Stop cellular connections if the setting changes into Disabled

   118     if (oldCellularDataUsage != ECmCellularDataUsageDisabled &&

   119             iCellularDataUsage == ECmCellularDataUsageDisabled)

   120         {

   121         // TODO: Uncomment this when trying to get stopping working.

   122         // iServer->StopCellularConns();

   123         }

   124     }

   125 

   126 // ---------------------------------------------------------------------------

   127 // From class CActive.

   128 // Nothing to do over here.

   129 // ---------------------------------------------------------------------------

   130 //

   131 TInt CMpmDataUsageWatcher::RunError( TInt /*aError*/ )

   132     {

   133     MPMLOGSTRING( "CMpmDataUsageWatcher::RunError" )

   134 

   135     return KErrNone;

   136     }

   137 

   138 // ---------------------------------------------------------------------------

   139 // From class CActive.

   140 // Cancel outstanding request.

   141 // ---------------------------------------------------------------------------

   142 //

   143 void CMpmDataUsageWatcher::DoCancel()

   144     {

   145     MPMLOGSTRING( "CMpmDataUsageWatcher::DoCancel" )

   146 

   147     iRepository->NotifyCancel( KCurrentCellularDataUsage );

   148     }

   149