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_LOG

    36 }

    37 

    38 /*!

    39  Destructs music player engine factory.

    40  */

    41 MpEngineFactory::~MpEngineFactory()

    42 {

    43 }

    44 

    45 /*!

    46  Returns the singleton instance of music player engine factory.

    47  */

    48 MpEngineFactory * MpEngineFactory::instance()

    49 {

    50     static MpEngineFactory instance;

    51     return &instance;

    52 }

    53 

    54 /*!

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

    56  already created parameters are ignored.

    57  */

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

    59 {

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

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

    62         instance()->mSharedEngine->initialize( hostUid, mode );

    63     }

    64     return instance()->mSharedEngine;

    65 }

    66 

    67 /*!

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

    69  */

    70 MpEngine *MpEngineFactory::createIsolatedEngine( MpEngine::EngineMode mode )

    71 {

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

    73     instance()->mEngines.last()->initialize( TUid::Uid( MpCommon::KMusicPlayerUid + instance()->mEngines.count() ), mode );

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

    75 }

    76 

    77 /*!

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

    79  */

    80 MpEngine *MpEngineFactory::sharedEngine()

    81 {

    82     return instance()->mSharedEngine;

    83 }

    84 

    85 /*!

    86  Closes all engines created on this process.

    87  */

    88 void MpEngineFactory::close()

    89 {

    90     if ( instance()->mSharedEngine ) {

    91         delete instance()->mSharedEngine;

    92         instance()->mSharedEngine = 0;

    93         

    94     }

    95     MpEngine *ptr;

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

    97         delete ptr;

    98         ptr = 0;

    99     }

   100 }