Clementine-audio-player-Mac.../src/playlist/playlistmanager.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 PLAYLISTMANAGER_H
#define PLAYLISTMANAGER_H
#include <QColor>
#include <QItemSelection>
#include <QMap>
#include <QObject>
#include <QSettings>
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#include "core/song.h"
#include "playlist.h"
#include "smartplaylists/generator_fwd.h"
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class Application;
class LibraryBackend;
class PlaylistBackend;
class PlaylistContainer;
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class PlaylistParser;
class PlaylistSequence;
class TaskManager;
class QModelIndex;
class QUrl;
class PlaylistManagerInterface : public QObject {
Q_OBJECT
public:
PlaylistManagerInterface(Application* app, QObject* parent)
: QObject(parent) {}
virtual int current_id() const = 0;
virtual int active_id() const = 0;
virtual Playlist* playlist(int id) const = 0;
virtual Playlist* current() const = 0;
virtual Playlist* active() const = 0;
// Returns the collection of playlists managed by this PlaylistManager.
virtual QList<Playlist*> GetAllPlaylists() const = 0;
// Grays out and reloads all deleted songs in all playlists.
virtual void InvalidateDeletedSongs() = 0;
// Removes all deleted songs from all playlists.
virtual void RemoveDeletedSongs() = 0;
virtual QItemSelection selection(int id) const = 0;
virtual QItemSelection current_selection() const = 0;
virtual QItemSelection active_selection() const = 0;
virtual QString GetPlaylistName(int index) const = 0;
virtual LibraryBackend* library_backend() const = 0;
virtual PlaylistBackend* playlist_backend() const = 0;
virtual PlaylistSequence* sequence() const = 0;
virtual PlaylistParser* parser() const = 0;
virtual PlaylistContainer* playlist_container() const = 0;
public slots:
virtual void New(const QString& name, const SongList& songs = SongList(),
const QString& special_type = QString()) = 0;
virtual void Load(const QString& filename) = 0;
virtual void Save(int id, const QString& filename, Playlist::Path path_type) = 0;
virtual void Rename(int id, const QString& new_name) = 0;
virtual void Delete(int id) = 0;
virtual bool Close(int id) = 0;
virtual void Open(int id) = 0;
virtual void ChangePlaylistOrder(const QList<int>& ids) = 0;
virtual void SongChangeRequestProcessed(const QUrl& url, bool valid) = 0;
virtual void SetCurrentPlaylist(int id) = 0;
virtual void SetActivePlaylist(int id) = 0;
virtual void SetActiveToCurrent() = 0;
virtual void SelectionChanged(const QItemSelection& selection) = 0;
// Convenience slots that defer to either current() or active()
virtual void ClearCurrent() = 0;
virtual void ShuffleCurrent() = 0;
virtual void RemoveDuplicatesCurrent() = 0;
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virtual void RemoveUnavailableCurrent() = 0;
virtual void SetActivePlaying() = 0;
virtual void SetActivePaused() = 0;
virtual void SetActiveStopped() = 0;
virtual void SetActiveStreamMetadata(const QUrl& url, const Song& song) = 0;
// Rate current song using 0.0 - 1.0 scale.
virtual void RateCurrentSong(double rating) = 0;
// Rate current song using 0 - 5 scale.
virtual void RateCurrentSong(int rating) = 0;
virtual void PlaySmartPlaylist(smart_playlists::GeneratorPtr generator,
bool as_new, bool clear) = 0;
signals:
void PlaylistManagerInitialized();
void PlaylistAdded(int id, const QString& name, bool favorite);
void PlaylistDeleted(int id);
void PlaylistClosed(int id);
void PlaylistRenamed(int id, const QString& new_name);
void PlaylistFavorited(int id, bool favorite);
void CurrentChanged(Playlist* new_playlist);
void ActiveChanged(Playlist* new_playlist);
void Error(const QString& message);
void SummaryTextChanged(const QString& summary);
// Forwarded from individual playlists
void CurrentSongChanged(const Song& song);
// Signals that one of manager's playlists has changed (new items, new
// ordering etc.) - the argument shows which.
void PlaylistChanged(Playlist* playlist);
void EditingFinished(const QModelIndex& index);
void PlayRequested(const QModelIndex& index);
};
class PlaylistManager : public PlaylistManagerInterface {
Q_OBJECT
public:
PlaylistManager(Application* app, QObject* parent = nullptr);
~PlaylistManager();
int current_id() const { return current_; }
int active_id() const { return active_; }
Playlist* playlist(int id) const { return playlists_[id].p; }
Playlist* current() const { return playlist(current_id()); }
Playlist* active() const { return playlist(active_id()); }
// Returns the collection of playlists managed by this PlaylistManager.
QList<Playlist*> GetAllPlaylists() const;
// Grays out and reloads all deleted songs in all playlists.
void InvalidateDeletedSongs();
// Removes all deleted songs from all playlists.
void RemoveDeletedSongs();
// Returns true if the playlist is open
bool IsPlaylistOpen(int id);
// Returns a pretty automatic name for playlist created from the given list of
// songs.
static QString GetNameForNewPlaylist(const SongList& songs);
QItemSelection selection(int id) const;
QItemSelection current_selection() const { return selection(current_id()); }
QItemSelection active_selection() const { return selection(active_id()); }
QString GetPlaylistName(int index) const { return playlists_[index].name; }
bool IsPlaylistFavorite(int index) const {
return playlists_[index].p->is_favorite();
}
void Init(LibraryBackend* library_backend, PlaylistBackend* playlist_backend,
PlaylistSequence* sequence, PlaylistContainer* playlist_container);
LibraryBackend* library_backend() const { return library_backend_; }
PlaylistBackend* playlist_backend() const { return playlist_backend_; }
PlaylistSequence* sequence() const { return sequence_; }
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PlaylistParser* parser() const { return parser_; }
PlaylistContainer* playlist_container() const { return playlist_container_; }
public slots:
void New(const QString& name, const SongList& songs = SongList(),
const QString& special_type = QString());
void Load(const QString& filename);
void Save(int id, const QString& filename, Playlist::Path path_type);
// Display a file dialog to let user choose a file before saving the file
void SaveWithUI(int id, const QString& suggested_filename);
void Rename(int id, const QString& new_name);
void Favorite(int id, bool favorite);
void Delete(int id);
bool Close(int id);
void Open(int id);
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void ChangePlaylistOrder(const QList<int>& ids);
void SetCurrentPlaylist(int id);
void SetActivePlaylist(int id);
void SetActiveToCurrent();
void SelectionChanged(const QItemSelection& selection);
// Makes a playlist current if it's open already, or opens it and makes it
// current if it is hidden.
void SetCurrentOrOpen(int id);
// Convenience slots that defer to either current() or active()
void ClearCurrent();
void ShuffleCurrent();
void RemoveDuplicatesCurrent();
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void RemoveUnavailableCurrent();
void SetActiveStreamMetadata(const QUrl& url, const Song& song);
// Rate current song using 0.0 - 1.0 scale.
void RateCurrentSong(double rating);
// Rate current song using 0 - 5 scale.
void RateCurrentSong(int rating);
void PlaySmartPlaylist(smart_playlists::GeneratorPtr generator, bool as_new,
bool clear);
void SongChangeRequestProcessed(const QUrl& url, bool valid);
void InsertUrls(int id, const QList<QUrl>& urls, int pos = -1,
bool play_now = false, bool enqueue = false);
// Removes items with given indices from the playlist. This operation is not
// undoable.
void RemoveItemsWithoutUndo(int id, const QList<int>& indices);
private slots:
void SetActivePlaying();
void SetActivePaused();
void SetActiveStopped();
void OneOfPlaylistsChanged();
void UpdateSummaryText();
void SongsDiscovered(const SongList& songs);
void ItemsLoadedForSavePlaylist(QFutureWatcher<Song>* watcher,
const QString& filename,
Playlist::Path path_type);
private:
Playlist* AddPlaylist(int id, const QString& name,
const QString& special_type, const QString& ui_path,
bool favorite);
private:
struct Data {
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Data(Playlist* _p = nullptr, const QString& _name = QString())
: p(_p), name(_name) {}
Playlist* p;
QString name;
QItemSelection selection;
};
Application* app_;
PlaylistBackend* playlist_backend_;
LibraryBackend* library_backend_;
PlaylistSequence* sequence_;
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PlaylistParser* parser_;
PlaylistContainer* playlist_container_;
// key = id
QMap<int, Data> playlists_;
int current_;
int active_;
};
#endif // PLAYLISTMANAGER_H