1 /*

     2 * Copyright (c) 2006-2007 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:  Processor 

    15 *

    16 */

    17 

    18 

    19 #include <e32base.h>

    20 

    21 #include "tmshutdownobserver.h"

    22 #include "thumbnailmanagerconstants.h"

    23 

    24 // ---------------------------------------------------------------------------

    25 // CTMShutdownObserver::NewL()

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

    27 //

    28 CTMShutdownObserver* CTMShutdownObserver::NewL( MTMShutdownObserver& aObserver,

    29                                                 const TUid& aKeyCategory,

    30                                                 const TInt aPropertyKey,

    31                                                 TBool aDefineKey)

    32     { 

    33     CTMShutdownObserver* self = new( ELeave )CTMShutdownObserver( aObserver, 

    34                                                                   aKeyCategory,

    35                                                                   aPropertyKey,

    36                                                                   aDefineKey);

    37     CleanupStack::PushL( self );

    38     self->ConstructL();

    39     CleanupStack::Pop( self );

    40     return self;

    41     }

    42 

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

    44 // CTMShutdownObserver::CTMShutdownObserver()

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

    46 //

    47 CTMShutdownObserver::CTMShutdownObserver( MTMShutdownObserver& aObserver,

    48                                           const TUid& aKeyCategory,

    49                                           const TInt aPropertyKey,

    50                                           TBool aDefineKey)

    51     : CActive( CActive::EPriorityStandard ), iObserver( aObserver ),

    52       iKeyCategory( aKeyCategory ), iPropertyKey(aPropertyKey), iDefineKey( aDefineKey )

    53     {   

    54     CActiveScheduler::Add( this );

    55     }

    56 

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

    58 // CTMShutdownObserver::ConstructL()

    59 // ---------------------------------------------------------------------------

    60 //

    61 void CTMShutdownObserver::ConstructL()

    62     { 

    63     // define P&S property types

    64     if (iDefineKey)

    65         {

    66         RProperty::Define(iKeyCategory,iPropertyKey,

    67                           RProperty::EInt,KAllowAllPolicy,KPowerMgmtPolicy);

    68         }

    69     

    70     // attach to the property

    71     TInt err = iProperty.Attach(iKeyCategory,iPropertyKey,EOwnerThread);

    72     User::LeaveIfError(err);

    73     

    74     // wait for the previously attached property to be updated

    75     iProperty.Subscribe(iStatus);

    76     SetActive();

    77     }

    78 

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

    80 // CTMShutdownObserver::~CTMShutdownObserver()

    81 // ---------------------------------------------------------------------------

    82 //

    83 CTMShutdownObserver::~CTMShutdownObserver()

    84     {

    85     Cancel();

    86     iProperty.Close();

    87     }

    88 

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

    90 // CTMShutdownObserver::RunL()

    91 // ---------------------------------------------------------------------------

    92 //

    93 void CTMShutdownObserver::RunL()

    94     {

    95     // resubscribe before processing new value to prevent missing updates

    96     iProperty.Subscribe(iStatus);

    97     SetActive();

    98     

    99     // retrieve the value

   100     TInt value = 0;

   101     iProperty.Get(value);

   102 

   103     // observer callback

   104     if (value)

   105         {

   106         iObserver.ShutdownNotification();

   107         }

   108     }

   109 

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

   111 // CTMShutdownObserver::DoCancel()

   112 // ---------------------------------------------------------------------------

   113 //

   114 void CTMShutdownObserver::DoCancel()

   115     {

   116     iProperty.Cancel();

   117     }

   118 

   119 // End of file