1 /*

     2 * Copyright (c) 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:  Manipulates the virtual location of the spectator.

    15 *

    16 */

    17 

    18 

    19 

    20 // INCLUDE FILES

    21 #include <logger.h>

    22 #include "cammsspectatorlocationcontrol.h"

    23 

    24 

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

    26 

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

    28 // CAMMSSpectatorLocationControl::NewLC

    29 // Two-phased constructor.

    30 // -----------------------------------------------------------------------------

    31 CAMMSSpectatorLocationControl* CAMMSSpectatorLocationControl::NewLC(

    32     CMMAPlayer* aPlayer)

    33 {

    34     CAMMSSpectatorLocationControl* self = new(ELeave)

    35     CAMMSSpectatorLocationControl(aPlayer);

    36 

    37     CleanupStack::PushL(self);

    38 

    39     return self;

    40 }

    41 

    42 // Destructor

    43 CAMMSSpectatorLocationControl::~CAMMSSpectatorLocationControl()

    44 {

    45     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSSpectatorLocationControl::~CAMMSSpectatorLocationControl");

    46 

    47     // Perform DeallocateControl, if the state change has not yet performed it.

    48     DeallocateControl();

    49     delete(CAudioEffect*)iLocationEffect;

    50 }

    51 

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

    53 // CAMMSSpectatorLocationControl::PrepareControlL

    54 // Function which is called after the correct state is set in Player.

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

    56 //

    57 void CAMMSSpectatorLocationControl::PrepareControlL()

    58 {

    59     // Perform the action only for the first time, skip if called afterwards

    60     if (!iLocationEffect)

    61     {

    62         LOG( EJavaAMMS, EInfo, "AMMS::CAMMSSpectatorLocationControl::PrepareControlL");

    63 

    64         CCustomCommandUtility* customCommandUtility =

    65             CreateCustomCommandUtilityL();

    66 

    67         // Set the base class location effect as CListenerLocation

    68         // Effect API takes the ownership of customCommandUtility.

    69         iLocationEffect = CListenerLocation::NewL(customCommandUtility);

    70 

    71         // Enable the Effect API Control

    72         iLocationEffect->EnableL();

    73     }

    74 }

    75 

    76 // -----------------------------------------------------------------------------

    77 // CAMMSSpectatorLocationControl::DeallocateControl

    78 // Function which is called after the correct state is set in Player.

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

    80 //

    81 void CAMMSSpectatorLocationControl::DeallocateControl()

    82 {

    83     if (iLocationEffect)

    84     {

    85         LOG( EJavaAMMS, EInfo, "AMMS::CAMMSSpectatorLocationControl::DeallocateControl");

    86 

    87         // Disable the Effect API Control

    88         TRAPD(err, iLocationEffect->DisableL());

    89         if (err != KErrNone)

    90         {

    91             // The only even theoritically possible error code here would be

    92             // KErrAccessDenied which is a result from Effect API calling ApplyL

    93             // method without having update rights, but since the Effect

    94             // is already created, that situation can be discarded here.

    95         }

    96 

    97         // Delete the Effect API class.

    98         // The class that is derived from CLocation is casted here to the

    99         // base class CAudioEffect, since CLocation has the destructor

   100         // defined as protected, but the derived class and the base class

   101         // have it defined as public.

   102         delete(CAudioEffect*)iLocationEffect;

   103         iLocationEffect = NULL;

   104     }

   105 }

   106 

   107 const TDesC& CAMMSSpectatorLocationControl::ClassName() const

   108 {

   109     return KAMMSSpectatorLocationControl;

   110 }

   111 

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

   113 // CAMMSSpectatorLocationControl::CAMMSSpectatorLocationControl

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

   115 // might leave.

   116 // -----------------------------------------------------------------------------

   117 CAMMSSpectatorLocationControl::CAMMSSpectatorLocationControl(

   118     CMMAPlayer* aPlayer)

   119         : CAMMSLocationControl(aPlayer)

   120 {

   121 }

   122 

   123 

   124 //  End of File