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: Music Player collection container factory.

    15 *

    16 */

    17 

    18 #include <hbdocumentloader.h>

    19 

    20 #include "mpcollectioncontainerfactory.h"

    21 #include "mpcollectionview.h"

    22 #include "mpcollectioncontainer.h"

    23 #include "mpcollectioncontainerallsongs.h"

    24 #include "mpcollectioncontainerartists.h"

    25 #include "mpcollectioncontainerplaylists.h"

    26 #include "mpcollectioncontainergenres.h"

    27 #include "mptrace.h"

    28 

    29 /*!

    30     \class MpCollectionContainerFactory

    31     \brief Music Player collection container factory.

    32 

    33     Collection container factory is responsible for creating different

    34     collection containers according to the current context. It is also

    35     responsible for making decisions whether to create a new container

    36     or reuse the existing container depending on the context transition.

    37 

    38     \sa MpCollectionContainer

    39 */

    40 

    41 /*!

    42  Constructs the collection container factory.

    43  */

    44 MpCollectionContainerFactory::MpCollectionContainerFactory( MpCollectionView *view, HbDocumentLoader *loader, QObject *parent )

    45     : QObject(parent),

    46       mView(view),

    47       mCurrentContainer(0),

    48       mCurrentContext(ECollectionContextUnknown),

    49       mDocumentLoader(loader)

    50 {

    51     TX_LOG

    52 }

    53 

    54 /*!

    55  Destructs the collection container factory.

    56  */

    57 MpCollectionContainerFactory::~MpCollectionContainerFactory()

    58 {

    59     TX_LOG

    60 }

    61 

    62 /*!

    63  Creates a container for the given \a context.

    64  */

    65 MpCollectionContainer *MpCollectionContainerFactory::createContainer(

    66     TCollectionContext context )

    67 {

    68     TX_ENTRY_ARGS("context=" << context);

    69 

    70     switch ( context ) {

    71     case ECollectionContextAllSongs:

    72         deleteCurrentContainer();

    73         mCurrentContainer = new MpCollectionContainerAllSongs(mDocumentLoader);

    74         mCurrentContainer->initialize();

    75         connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );

    76         connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );

    77         break;

    78     case ECollectionContextArtistAlbums:

    79         if ( mCurrentContext != ECollectionContextAlbumSongs ) {

    80             deleteCurrentContainer();

    81             mCurrentContainer = new MpCollectionContainerArtists(mDocumentLoader);

    82             mCurrentContainer->initialize();

    83             connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );

    84             connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );

    85         }

    86         break;

    87     case ECollectionContextPlaylists:

    88         if ( mCurrentContext != ECollectionContextPlaylistSongs ) {

    89             deleteCurrentContainer();

    90             mCurrentContainer = new MpCollectionContainerPlaylists(mDocumentLoader);

    91             mCurrentContainer->initialize();

    92             connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );

    93             connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );

    94         }

    95         break;

    96     case ECollectionContextGenres:

    97         if ( mCurrentContext != ECollectionContextGenreSongs ) {

    98             deleteCurrentContainer();

    99             mCurrentContainer = new MpCollectionContainerGenres(mDocumentLoader);

   100             mCurrentContainer->initialize();

   101             connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );

   102             //connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );

   103         }

   104         break;

   105     case ECollectionContextAlbumSongs:

   106     case ECollectionContextPlaylistSongs:

   107     case ECollectionContextGenreSongs:

   108         // For this contexts, reuse the same container.

   109         break;

   110     }

   111     TX_EXIT

   112     mCurrentContext = context;

   113     return mCurrentContainer;

   114 }

   115 

   116 /*!

   117  \internal

   118  */

   119 void MpCollectionContainerFactory::deleteCurrentContainer()

   120 {

   121     TX_ENTRY_ARGS("mCurrentContext=" << mCurrentContext);

   122     switch ( mCurrentContext ) {

   123     case ECollectionContextAllSongs:

   124         delete static_cast<MpCollectionContainerAllSongs *>(mCurrentContainer);

   125         break;

   126     case ECollectionContextArtistAlbums:

   127     case ECollectionContextAlbumSongs:

   128         delete static_cast<MpCollectionContainerArtists *>(mCurrentContainer);

   129         break;

   130     case ECollectionContextPlaylists:

   131     case ECollectionContextPlaylistSongs:

   132         delete static_cast<MpCollectionContainerPlaylists *>(mCurrentContainer);

   133         break;

   134     case ECollectionContextGenres:

   135     case ECollectionContextGenreSongs:

   136         delete static_cast<MpCollectionContainerGenres *>(mCurrentContainer);

   137         break;

   138     }

   139     TX_EXIT

   140 }

   141