1 /*

     2 * Copyright (c) 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: mp engine factory.

    15 *

    16 */

    17 

    18 #include "mpengine.h"

    19 #include "mpenginefactory.h"

    20 #include "mptrace.h"

    21 

    22 /*!

    23     \class MpEngineFactory

    24     \brief Music Player engine factory.

    25 

    26     MP Engine factory is responsible to create and mantain ownership of MP engines.

    27 */

    28 

    29 /*!

    30  Constructs music player engine factory.

    31  */

    32 MpEngineFactory::MpEngineFactory()

    33     : mSharedEngine( 0 )

    34 {

    35     TX_ENTRY_ARGS("Stub")

    36 }

    37 

    38 /*!

    39  Destructs music player engine factory.

    40  */

    41 MpEngineFactory::~MpEngineFactory()

    42 {

    43     TX_ENTRY_ARGS("Stub")

    44 }

    45 

    46 /*!

    47  Returns the singleton instance of music player engine factory.

    48  */

    49 MpEngineFactory * MpEngineFactory::instance()

    50 {

    51     TX_LOG_ARGS("MpEngineFactory::instance() Stub")

    52     static MpEngineFactory instance;

    53     return &instance;

    54 }

    55 

    56 /*!

    57  Returns an instance to an engine with \a hostUid, and \a mode, if the shared engine is 

    58  already created parameters are ignored.

    59  */

    60 MpEngine *MpEngineFactory::createSharedEngine( TUid /*hostUid*/ , MpEngine::EngineMode /*mode*/ )

    61 {

    62     TX_LOG_ARGS("MpEngineFactory::createSharedEngine() Stub")

    63     if ( !instance()->mSharedEngine ) {

    64         instance()->mSharedEngine = new MpEngine();

    65     }

    66     return instance()->mSharedEngine;

    67 }

    68 

    69 /*!

    70  Returns an instance to the current shared engine previously created with createEngine().

    71  */

    72 MpEngine *MpEngineFactory::sharedEngine()

    73 {

    74     return instance()->mSharedEngine;

    75 }

    76 

    77 /*!

    78  Closes all engines created on this process.

    79  */

    80 void MpEngineFactory::close()

    81 {

    82     if ( instance()->mSharedEngine ) {

    83         delete instance()->mSharedEngine;

    84         instance()->mSharedEngine = 0;        

    85     }

    86     MpEngine *ptr;

    87     foreach ( ptr, instance()->mEngines ) {

    88         delete ptr;

    89         ptr = 0;

    90     }

    91 }

    92 

    93 /*!

    94  Returns an instance to an isolated engine with \a mode.

    95  */

    96 MpEngine *MpEngineFactory::createIsolatedEngine( MpEngine::EngineMode /*mode*/ )

    97 {

    98     instance()->mEngines.append( new MpEngine() );    

    99     return instance()->mEngines.last();

   100 }