Clementine-audio-player-Mac.../src/playlist/playlistbackend.h

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Clementine is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PLAYLISTBACKEND_H
#define PLAYLISTBACKEND_H
#include <QFuture>
#include <QHash>
#include <QList>
#include <QMutex>
#include <QObject>
#include "playlistitem.h"
#include "smartplaylists/generator_fwd.h"
class Application;
class Database;
class PlaylistBackend : public QObject {
Q_OBJECT
public:
Q_INVOKABLE PlaylistBackend(Application* app, QObject* parent = nullptr);
struct Playlist {
Playlist() : id(-1), favorite(false), last_played(0) {}
int id;
QString name;
QString ui_path;
bool favorite;
int last_played;
QString dynamic_type;
QString dynamic_backend;
QByteArray dynamic_data;
// Special playlists have different behaviour, eg. the "spotify-search"
// type has a spotify search box at the top, replacing the ordinary filter.
QString special_type;
};
typedef QList<Playlist> PlaylistList;
typedef QFuture<PlaylistItemPtr> PlaylistItemFuture;
static const int kSongTableJoins;
PlaylistList GetAllPlaylists();
PlaylistList GetAllOpenPlaylists();
PlaylistList GetAllFavoritePlaylists();
PlaylistBackend::Playlist GetPlaylist(int id);
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PlaylistItemFuture GetPlaylistItems(int playlist);
QFuture<Song> GetPlaylistSongs(int playlist);
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void SetPlaylistOrder(const QList<int>& ids);
void SetPlaylistUiPath(int id, const QString& path);
int CreatePlaylist(const QString& name, const QString& special_type);
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void SavePlaylistAsync(int playlist, const PlaylistItemList& items,
int last_played,
smart_playlists::GeneratorPtr dynamic);
void RenamePlaylist(int id, const QString& new_name);
void FavoritePlaylist(int id, bool is_favorite);
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void RemovePlaylist(int id);
Application* app() const { return app_; }
public slots:
void SavePlaylist(int playlist, const PlaylistItemList& items,
int last_played, smart_playlists::GeneratorPtr dynamic);
private:
struct NewSongFromQueryState {
QHash<QString, SongList> cached_cues_;
QMutex mutex_;
};
QList<SqlRow> GetPlaylistRows(int playlist);
Song NewSongFromQuery(const SqlRow& row,
std::shared_ptr<NewSongFromQueryState> state);
PlaylistItemPtr NewPlaylistItemFromQuery(
const SqlRow& row, std::shared_ptr<NewSongFromQueryState> state);
PlaylistItemPtr RestoreCueData(PlaylistItemPtr item,
std::shared_ptr<NewSongFromQueryState> state);
enum GetPlaylistsFlags {
GetPlaylists_OpenInUi = 1,
GetPlaylists_Favorite = 2,
GetPlaylists_All = GetPlaylists_OpenInUi | GetPlaylists_Favorite
};
PlaylistList GetPlaylists(GetPlaylistsFlags flags);
Application* app_;
Database* db_;
};
#endif // PLAYLISTBACKEND_H