1 /**************************************************************************************** 2 * Copyright (c) 2009 Leo Franchi <lfranchi@kde.org> * 3 * Copyright (c) 2011 Ralf Engels <ralf-engels@gmx.de> * 4 * * 5 * This program is free software; you can redistribute it and/or modify it under * 6 * the terms of the GNU General Public License as published by the Free Software * 7 * Foundation; either version 2 of the License, or (at your option) any later * 8 * version. * 9 * * 10 * This program is distributed in the hope that it will be useful, but WITHOUT ANY * 11 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A * 12 * PARTICULAR PURPOSE. See the GNU General Public License for more details. * 13 * * 14 * You should have received a copy of the GNU General Public License along with * 15 * this program. If not, see <http://www.gnu.org/licenses/>. * 16 ****************************************************************************************/ 17 18 #ifndef LASTFM_BIAS_H 19 #define LASTFM_BIAS_H 20 21 #include "dynamic/biases/TagMatchBias.h" 22 23 #include <QMutex> 24 25 namespace Dynamic 26 { 27 28 /** This is a bias which adds the suggested songs to the playlist. */ 29 class LastFmBias : public SimpleMatchBias 30 { 31 Q_OBJECT 32 33 public: 34 35 /** The tracks that are used for the matching */ 36 enum MatchType 37 { 38 SimilarArtist, 39 SimilarTrack 40 }; 41 42 LastFmBias(); 43 ~LastFmBias() override; 44 45 void fromXml( QXmlStreamReader *reader ) override; 46 void toXml( QXmlStreamWriter *writer ) const override; 47 48 static QString sName(); 49 QString name() const override; 50 QString toString() const override; 51 52 QWidget* widget( QWidget* parent = nullptr ) override; 53 54 virtual Dynamic::TrackSet matchingTracks( const Meta::TrackList& playlist, 55 int contextCount, int finalCount, 56 Dynamic::TrackCollectionPtr universe ) const; 57 58 bool trackMatches( int position, 59 const Meta::TrackList& playlist, 60 int contextCount ) const override; 61 62 63 MatchType match() const; 64 void setMatch( MatchType value ); 65 66 public Q_SLOTS: 67 void invalidate() override; 68 69 private Q_SLOTS: 70 void newQuery() override; 71 virtual void newSimilarQuery(); 72 73 void similarArtistQueryDone(); 74 void similarTrackQueryDone(); 75 void queryFailed( const char *message ); 76 77 void setMatchTypeArtist( bool matchArtist ); 78 79 private: 80 /** The pair is used for the tracks */ 81 typedef QPair<QString, QString> TitleArtistPair; 82 83 static QString nameForMatch( MatchType match ); 84 static MatchType matchForName( const QString &name ); 85 86 void saveDataToFile() const; 87 88 void readSimilarArtists( QXmlStreamReader *reader ); 89 TitleArtistPair readTrack( QXmlStreamReader *reader ); 90 void readSimilarTracks( QXmlStreamReader *reader ); 91 void loadDataFromFile(); 92 93 mutable QString m_currentArtist; 94 mutable QString m_currentTrack; 95 96 MatchType m_match; 97 98 mutable QMutex m_mutex; // mutex protecting all of the below structures 99 mutable QMap< QString, QStringList> m_similarArtistMap; 100 mutable QMap< TitleArtistPair, QList<TitleArtistPair> > m_similarTrackMap; 101 mutable QMap< QString, TrackSet> m_tracksMap; // for artist AND album 102 103 private: 104 Q_DISABLE_COPY(LastFmBias) 105 }; 106 107 108 class LastFmBiasFactory : public Dynamic::AbstractBiasFactory 109 { 110 public: 111 QString i18nName() const override; 112 QString name() const override; 113 QString i18nDescription() const override; 114 BiasPtr createBias() override; 115 }; 116 117 } 118 119 #endif 120