mpviewplugins/mpcollectionviewplugin/src/mpcollectioncontainerfactory.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 15:49:53 +0300
changeset 25 3ec52facab4d
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permissions -rw-r--r--
Revision: 201017 Kit: 201019
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Music Player collection container factory.
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*
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*/
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#include <hbdocumentloader.h>
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#include "mpcollectioncontainerfactory.h"
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#include "mpcollectionview.h"
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#include "mpcollectioncontainer.h"
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#include "mpcollectioncontainerallsongs.h"
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#include "mpcollectioncontainerartists.h"
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#include "mpcollectioncontaineralbums.h"
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#include "mpcollectioncontainerplaylists.h"
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#include "mpcollectioncontainergenres.h"
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#include "mptrace.h"
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/*!
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    \class MpCollectionContainerFactory
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    \brief Music Player collection container factory.
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    Collection container factory is responsible for creating different
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    collection containers according to the current context. It is also
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    responsible for making decisions whether to create a new container
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    or reuse the existing container depending on the context transition.
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    \sa MpCollectionContainer
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*/
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/*!
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 Constructs the collection container factory.
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 */
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MpCollectionContainerFactory::MpCollectionContainerFactory( MpCollectionView *view, HbDocumentLoader *loader, QObject *parent )
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    : QObject(parent),
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      mView(view),
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      mCurrentContainer(0),
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      mCurrentContext(ECollectionContextUnknown),
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      mDocumentLoader(loader)
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{
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    TX_LOG
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}
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/*!
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 Destructs the collection container factory.
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 */
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MpCollectionContainerFactory::~MpCollectionContainerFactory()
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{
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    TX_LOG
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}
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/*!
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 Creates a container for the given \a context.
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 */
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MpCollectionContainer *MpCollectionContainerFactory::createContainer(
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    TCollectionContext context )
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{
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    TX_ENTRY_ARGS("context=" << context);
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    switch ( context ) {
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    case ECollectionContextAllSongs:
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        deleteCurrentContainer();
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        mCurrentContainer = new MpCollectionContainerAllSongs(mDocumentLoader);
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        mCurrentContainer->initialize();
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        connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );
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        connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );
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        break;
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    case ECollectionContextArtists:
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            if ( ( mCurrentContext != ECollectionContextArtistAlbums ) && ( mCurrentContext != ECollectionContextAlbumSongs) )
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                {
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                deleteCurrentContainer();
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                mCurrentContainer = new MpCollectionContainerArtists(mDocumentLoader);
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                mCurrentContainer->initialize();
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                connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );
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                connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );
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            }
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            break;
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    case ECollectionContextAlbums:
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        if ( mCurrentContext != ECollectionContextAlbumSongs ) {
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            deleteCurrentContainer();
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            mCurrentContainer = new MpCollectionContainerAlbums(mDocumentLoader);
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            mCurrentContainer->initialize();
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            connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );
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            connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );
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        }
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        break;
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    case ECollectionContextPlaylists:
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        if ( mCurrentContext != ECollectionContextPlaylistSongs ) {
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            deleteCurrentContainer();
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            mCurrentContainer = new MpCollectionContainerPlaylists(mDocumentLoader);
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            mCurrentContainer->initialize();
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            connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );
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            connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );
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        }
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        break;
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    case ECollectionContextGenres:
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        if ( mCurrentContext != ECollectionContextGenreSongs ) {
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            deleteCurrentContainer();
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            mCurrentContainer = new MpCollectionContainerGenres(mDocumentLoader);
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            mCurrentContainer->initialize();
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   112
            connect( mCurrentContainer, SIGNAL(itemActivated(int)), mView, SLOT(openIndex(int)) );
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            //connect( mCurrentContainer, SIGNAL(itemLongPressed(int, QPointF)), mView, SLOT(openContextMenu(int, QPointF)) );
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        }
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        break;
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   116
    case ECollectionContextAlbumSongs:
25
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   117
    case ECollectionContextArtistAlbums:
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   118
    case ECollectionContextArtistSongs:
19
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    case ECollectionContextPlaylistSongs:
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    case ECollectionContextGenreSongs:
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        // For this contexts, reuse the same container.
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        break;
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   123
    }
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   124
    TX_EXIT
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   125
    mCurrentContext = context;
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    return mCurrentContainer;
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   127
}
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   128
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/*!
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 \internal
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 */
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void MpCollectionContainerFactory::deleteCurrentContainer()
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{
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    TX_ENTRY_ARGS("mCurrentContext=" << mCurrentContext);
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   135
    switch ( mCurrentContext ) {
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   136
    case ECollectionContextAllSongs:
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        delete static_cast<MpCollectionContainerAllSongs *>(mCurrentContainer);
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   138
        break;
25
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parents: 20
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   139
    case ECollectionContextArtists:
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   140
    case ECollectionContextArtistAlbums:
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   141
    case ECollectionContextArtistSongs:
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   142
        delete static_cast<MpCollectionContainerArtists *>(mCurrentContainer);
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   143
        break;
20
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parents: 19
diff changeset
   144
    case ECollectionContextAlbums:
19
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parents:
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   145
    case ECollectionContextAlbumSongs:
20
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parents: 19
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   146
        delete static_cast<MpCollectionContainerAlbums *>(mCurrentContainer);
19
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   147
        break;
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parents:
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   148
    case ECollectionContextPlaylists:
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   149
    case ECollectionContextPlaylistSongs:
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   150
        delete static_cast<MpCollectionContainerPlaylists *>(mCurrentContainer);
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parents:
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   151
        break;
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parents:
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   152
    case ECollectionContextGenres:
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   153
    case ECollectionContextGenreSongs:
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parents:
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   154
        delete static_cast<MpCollectionContainerGenres *>(mCurrentContainer);
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parents:
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   155
        break;
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parents:
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   156
    }
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parents:
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   157
    TX_EXIT
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parents:
diff changeset
   158
}
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parents:
diff changeset
   159