Clementine-audio-player-Mac.../src/core/player.h

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/* This file is part of Clementine.
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Copyright 2009-2012, David Sansome <me@davidsansome.com>
Copyright 2010, 2012, 2014, John Maguire <john.maguire@gmail.com>
Copyright 2011, Paweł Bara <keirangtp@gmail.com>
Copyright 2011, Andrea Decorte <adecorte@gmail.com>
Copyright 2012, Anand <anandtp@live.in>
Copyright 2013, Andreas <asfa194@gmail.com>
Copyright 2013, Kevin Cox <kevincox.ca@gmail.com>
Copyright 2014, Arnaud Bienner <arnaud.bienner@gmail.com>
Copyright 2014, Mark Furneaux <mark@romaco.ca>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.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/>.
*/
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#ifndef CORE_PLAYER_H_
#define CORE_PLAYER_H_
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#include <memory>
#include <QDateTime>
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#include <QObject>
#include <QSettings>
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#include "config.h"
#include "core/song.h"
#include "core/urlhandler.h"
#include "covers/albumcoverloader.h"
#include "engines/engine_fwd.h"
#include "playlist/playlistitem.h"
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class Application;
class Scrobbler;
class PlayerInterface : public QObject {
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Q_OBJECT
public:
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explicit PlayerInterface(QObject* parent = nullptr) : QObject(parent) {}
virtual EngineBase* engine() const = 0;
virtual Engine::State GetState() const = 0;
virtual int GetVolume() const = 0;
virtual PlaylistItemPtr GetCurrentItem() const = 0;
virtual PlaylistItemPtr GetItemAt(int pos) const = 0;
virtual void RegisterUrlHandler(UrlHandler* handler) = 0;
virtual void UnregisterUrlHandler(UrlHandler* handler) = 0;
public slots:
virtual void ReloadSettings() = 0;
// Manual track change to the specified track
virtual void PlayAt(int i, Engine::TrackChangeFlags change,
bool reshuffle) = 0;
// If there's currently a song playing, pause it, otherwise play the track
// that was playing last, or the first one on the playlist
virtual void PlayPause() = 0;
virtual void RestartOrPrevious() = 0;
// Skips this track. Might load more of the current radio station.
virtual void Next() = 0;
virtual void Previous() = 0;
virtual void SetVolume(int value) = 0;
virtual void VolumeUp() = 0;
virtual void VolumeDown() = 0;
virtual void SeekTo(int seconds) = 0;
// Moves the position of the currently playing song five seconds forward.
virtual void SeekForward() = 0;
// Moves the position of the currently playing song five seconds backwards.
virtual void SeekBackward() = 0;
virtual void CurrentMetadataChanged(const Song& metadata) = 0;
virtual void Mute() = 0;
virtual void Pause() = 0;
virtual void Stop(bool stop_after = false) = 0;
virtual void Play() = 0;
virtual void ShowOSD() = 0;
signals:
void Playing();
void Paused();
void Stopped();
void PlaylistFinished();
void VolumeChanged(int volume);
void Error(const QString& message);
void TrackSkipped(PlaylistItemPtr old_track);
// Emitted when there's a manual change to the current's track position.
void Seeked(qlonglong microseconds);
// Emitted when Player has processed a request to play another song. This
// contains
// the URL of the song and a flag saying whether it was able to play the song.
void SongChangeRequestProcessed(const QUrl& url, bool valid);
// The toggle parameter is true when user requests to toggle visibility for
// Pretty OSD
void ForceShowOSD(Song, bool toggle);
};
class Player : public PlayerInterface {
Q_OBJECT
public:
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explicit Player(Application* app, QObject* parent = nullptr);
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~Player();
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static const char* kSettingsGroup;
// Don't change the values: they are saved in preferences
enum PreviousBehaviour {
PreviousBehaviour_DontRestart = 1,
PreviousBehaviour_Restart = 2
};
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void Init();
EngineBase* engine() const { return engine_.get(); }
Engine::State GetState() const { return last_state_; }
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int GetVolume() const;
PlaylistItemPtr GetCurrentItem() const { return current_item_; }
PlaylistItemPtr GetItemAt(int pos) const;
void RegisterUrlHandler(UrlHandler* handler);
void UnregisterUrlHandler(UrlHandler* handler);
const UrlHandler* HandlerForUrl(const QUrl& url) const;
bool PreviousWouldRestartTrack() const;
public slots:
void ReloadSettings();
void PlayAt(int i, Engine::TrackChangeFlags change, bool reshuffle);
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void PlayPause();
void RestartOrPrevious();
void Next();
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void Previous();
void SetVolume(int value);
void VolumeUp() { SetVolume(GetVolume() + 5); }
void VolumeDown() { SetVolume(GetVolume() - 5); }
void SeekTo(int seconds);
void SeekForward();
void SeekBackward();
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void CurrentMetadataChanged(const Song& metadata);
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void Mute();
void Pause();
void Stop(bool stop_after = false);
void StopAfterCurrent();
void IntroPointReached();
void Play();
void ShowOSD();
void TogglePrettyOSD();
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private slots:
void EngineStateChanged(Engine::State);
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void EngineMetadataReceived(const Engine::SimpleMetaBundle& bundle);
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void TrackAboutToEnd();
void TrackEnded();
// Play the next item on the playlist - disregarding radio stations like
// last.fm that might have more tracks.
void NextItem(Engine::TrackChangeFlags change);
void PreviousItem(Engine::TrackChangeFlags change);
void NextInternal(Engine::TrackChangeFlags);
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void ValidSongRequested(const QUrl&);
void InvalidSongRequested(const QUrl&);
void UrlHandlerDestroyed(QObject* object);
void HandleLoadResult(const UrlHandler::LoadResult& result);
private:
// Returns true if we were supposed to stop after this track.
bool HandleStopAfter();
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private:
Application* app_;
Scrobbler* lastfm_;
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QSettings settings_;
PlaylistItemPtr current_item_;
std::unique_ptr<EngineBase> engine_;
Engine::TrackChangeFlags stream_change_type_;
Engine::State last_state_;
int nb_errors_received_;
QMap<QString, UrlHandler*> url_handlers_;
QUrl loading_async_;
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int volume_before_mute_;
QDateTime last_pressed_previous_;
PreviousBehaviour menu_previousmode_;
int seek_step_sec_;
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};
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#endif // CORE_PLAYER_H_