1 /*

     2 * Copyright (c) 2004-2005 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:  Interface for Active object handling Pub&Sub notify events.

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include    "CSSSettingsActiveObject.h"

    21 #include    <e32property.h>

    22 

    23 

    24 // ============================ MEMBER FUNCTIONS ===============================

    25 

    26 // -----------------------------------------------------------------------------

    27 // CSSSettingsActiveObject::CSSSettingsActiveObject

    28 // -----------------------------------------------------------------------------

    29 //

    30 CSSSettingsActiveObject::CSSSettingsActiveObject(

    31     const TUid aNotifyUid,

    32     const TUint32 aNotifyKey,

    33     MSSSettingsPubSubNotify& aNotifyHandler )

    34 :   CActive( CActive::EPriorityStandard ),

    35     iNotifyUid ( aNotifyUid ),

    36     iNotifyKey( aNotifyKey ),

    37     iNotifyHandler( &aNotifyHandler ),

    38     iNotify( EFalse )

    39     {

    40     CActiveScheduler::Add( this );

    41     }

    42 

    43 // -----------------------------------------------------------------------------

    44 // CSSSettingsActiveObject::ConstructL

    45 // -----------------------------------------------------------------------------

    46 //

    47 void CSSSettingsActiveObject::ConstructL()

    48     {

    49     TInt err = iProperty.Attach(

    50         iNotifyUid,

    51         iNotifyKey );

    52     User::LeaveIfError( err );

    53     }

    54 

    55 // -----------------------------------------------------------------------------

    56 // CSSSettingsActiveObject::NewL

    57 // -----------------------------------------------------------------------------

    58 //

    59 CSSSettingsActiveObject* CSSSettingsActiveObject::NewL(

    60     const TUid aNotifyUid,

    61     const TUint32 aNotifyKey,

    62     MSSSettingsPubSubNotify& aNotifyHandler )

    63     {

    64     CSSSettingsActiveObject* self = 

    65         new ( ELeave ) CSSSettingsActiveObject(

    66             aNotifyUid,

    67             aNotifyKey,

    68             aNotifyHandler );

    69     

    70     CleanupStack::PushL( self );

    71     self->ConstructL();

    72     CleanupStack::Pop();

    73 

    74     return self;

    75     }

    76 

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

    78 // CSSSettingsActiveObject::~CSSSettingsActiveObject

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

    80 //

    81 CSSSettingsActiveObject::~CSSSettingsActiveObject()

    82     {

    83     Cancel();

    84     iProperty.Close();

    85     }

    86 

    87 // -----------------------------------------------------------------------------

    88 // CSSSettingsActiveObject::NotifyKeyChange

    89 // -----------------------------------------------------------------------------

    90 //

    91 TInt CSSSettingsActiveObject::NotifyKeyChange()

    92     {

    93     TInt err(KErrNone);

    94     if ( iNotify || IsActive() )

    95         {

    96         // Notify already active, so return error code.

    97         err = KErrInUse;

    98         }

    99     else

   100         {

   101         iProperty.Subscribe( iStatus );

   102         SetActive();

   103         iNotify = ETrue;

   104         }

   105     return err;

   106     }

   107 

   108 // -----------------------------------------------------------------------------

   109 // CSSSettingsActiveObject::CancelNotifyCancelNotify

   110 // -----------------------------------------------------------------------------

   111 //

   112 void CSSSettingsActiveObject::CancelNotify()

   113     {

   114     Cancel();

   115     }

   116 

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

   118 // CSSSettingsActiveObject::RunL

   119 // -----------------------------------------------------------------------------

   120 //

   121 void CSSSettingsActiveObject::RunL()

   122     {

   123     TInt err = iStatus.Int();

   124     if ( err != KErrCancel && !iNotify )

   125         {

   126         // Reset the notification.

   127         iProperty.Subscribe( iStatus );

   128         SetActive();

   129         }

   130     

   131     if ( !err )

   132         {

   133         if ( iNotifyHandler )

   134             {

   135             iNotifyHandler->HandlePubSubNotify(

   136                 iNotifyUid,

   137                 iNotifyKey );

   138             }

   139         }

   140     }

   141 

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

   143 // CSSSettingsActiveObject::DoCancel

   144 // ---------------------------------------------------------

   145 //

   146 void CSSSettingsActiveObject::DoCancel()

   147     {

   148     iNotify = EFalse;

   149     iProperty.Cancel();

   150     }

   151 

   152 //  End of File