1 /*

     2 * Copyright (c) 2003,2004 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:  Active object for calling Camera Application Engine methods 

    15 *                indirectly from callbacks

    16 *

    17 */

    18 

    19 

    20 // INCLUDE FILES

    21 #include "CaeCallbackActive.h"

    22 #include "CaeEngineImp.h"

    23 

    24 

    25 // ================= MEMBER FUNCTIONS =======================

    26 

    27 

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

    29 // CCaeCallbackActive::CCaeCallbackActive()

    30 // C++ constructor.

    31 // Adds the object to the Active Scheduler.

    32 // ---------------------------------------------------------------------------

    33 //

    34 CCaeCallbackActive::CCaeCallbackActive( 

    35     CCaeEngineImp& aCamAppEngine )

    36 : CActive( EPriorityStandard ), iCamAppEngine( aCamAppEngine )

    37     {

    38     CActiveScheduler::Add( this );

    39     }

    40 

    41 

    42 // ---------------------------------------------------------------------------

    43 // CCaeCallbackActive::CCaeCallbackActive()

    44 // Destructor. 

    45 // Cancels operation and closes the timer.

    46 // ---------------------------------------------------------------------------

    47 //

    48 CCaeCallbackActive::~CCaeCallbackActive()

    49     {

    50     Cancel();

    51     iTimer.Close();

    52     }

    53 

    54 

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

    56 // CCaeCallbackActive::NewLC()

    57 // Symbian OS two-phased constructor.

    58 // ---------------------------------------------------------------------------

    59 //

    60 CCaeCallbackActive* CCaeCallbackActive::NewLC( 

    61     CCaeEngineImp& aCamAppEngine )

    62     {

    63     CCaeCallbackActive* self = new( ELeave ) CCaeCallbackActive( aCamAppEngine );

    64 

    65     CleanupStack::PushL( self );

    66     self->ConstructL();

    67     return self;

    68     }

    69 

    70 

    71 // ---------------------------------------------------------------------------

    72 // CCaeCallbackActive::NewL()

    73 // Symbian OS two-phased constructor.

    74 // ---------------------------------------------------------------------------

    75 //

    76 CCaeCallbackActive* CCaeCallbackActive::NewL( 

    77     CCaeEngineImp& aCamAppEngine )

    78     {

    79     CCaeCallbackActive* self = NewLC( aCamAppEngine );

    80     CleanupStack::Pop( self );

    81     return self;

    82     }

    83 

    84 

    85 // ---------------------------------------------------------------------------

    86 // CCaeCallbackActive::ConstructL()

    87 // Symbian OS 2nd phase constructor that can leave.

    88 // ---------------------------------------------------------------------------

    89 //

    90 void CCaeCallbackActive::ConstructL()

    91     {

    92     User::LeaveIfError( iTimer.CreateLocal() );

    93     }

    94 

    95 

    96 // ---------------------------------------------------------------------------

    97 // CCaeCallbackActive::PowerOn()

    98 // Switches camera power on.

    99 // ---------------------------------------------------------------------------

   100 //

   101 void CCaeCallbackActive::PowerOn()

   102     {

   103     LOGTEXT( _L( "Cae: CCaeCallbackActive::PowerOn() entering" ) );

   104 

   105     _LIT( KPowerOnPanic, "CCaeCallbackActive::PowerOn");

   106     __ASSERT_ALWAYS( !IsActive(), User::Panic( KPowerOnPanic, 1 ) );

   107 

   108     iRequest = CCaeCallbackActive::ERequestPowerOn;

   109 

   110     SetActive();

   111     TRequestStatus* statusPtr = &iStatus;

   112     User::RequestComplete( statusPtr, KErrNone );

   113 

   114     LOGTEXT( _L( "Cae: CCaeCallbackActive::PowerOn() returning" ) );

   115     }

   116 

   117 

   118 // ---------------------------------------------------------------------------

   119 // CCaeCallbackActive::RunL()

   120 // Calls Camera Application Engine operation.

   121 // ---------------------------------------------------------------------------

   122 //

   123 void CCaeCallbackActive::RunL()

   124     {

   125     LOGTEXT( _L( "Cae: CCaeCallbackActive::RunL() entering" ) );

   126 

   127     switch ( iRequest ) 

   128         {

   129         case CCaeCallbackActive::ERequestPowerOn:

   130             // Call Camera Application Engine to switch camera power on.

   131             iCamAppEngine.PowerOn();

   132             break;

   133         default:

   134             break;

   135         }

   136 

   137     LOGTEXT( _L( "Cae: CCaeCallbackActive::RunL() returning" ) );

   138     }

   139 

   140 

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

   142 // CCaeCallbackActive::DoCancel()

   143 // Cancels request.

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

   145 //

   146 void CCaeCallbackActive::DoCancel()

   147     {

   148     iTimer.Cancel();

   149     iRequest = CCaeCallbackActive::ERequestDefault;

   150     }

   151 

   152 

   153 // End of File