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strawberry-audio-player-win.../src/core/mpris2.cpp

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/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <cstdlib>
#include <memory>
#include <algorithm>
#include <QApplication>
#include <QCoreApplication>
#include <QGuiApplication>
#include <QObject>
#include <QFile>
#include <QList>
#include <QJsonArray>
#include <QVariant>
#include <QVariantMap>
#include <QString>
#include <QStringList>
#include <QUrl>
#include <QDBusConnection>
#include <QDBusMessage>
#include <QDBusArgument>
#include <QDBusObjectPath>
#include <QtDebug>
#include "core/logging.h"
#include "mpris_common.h"
#include "mpris2.h"
#include "timeconstants.h"
#include "song.h"
#include "application.h"
#include "player.h"
#include "engine/enginebase.h"
#include "playlist/playlist.h"
#include "playlist/playlistitem.h"
#include "playlist/playlistmanager.h"
#include "playlist/playlistsequence.h"
#include "covermanager/currentalbumcoverloader.h"
#include "covermanager/albumcoverloaderresult.h"
#include <core/mpris2_player.h>
#include <core/mpris2_playlists.h>
#include <core/mpris2_root.h>
#include <core/mpris2_tracklist.h>
QDBusArgument &operator<<(QDBusArgument &arg, const MprisPlaylist &playlist) {
arg.beginStructure();
arg << playlist.id << playlist.name << playlist.icon;
arg.endStructure();
return arg;
}
const QDBusArgument &operator>>(const QDBusArgument &arg, MprisPlaylist &playlist) {
arg.beginStructure();
arg >> playlist.id >> playlist.name >> playlist.icon;
arg.endStructure();
return arg;
}
QDBusArgument &operator<<(QDBusArgument &arg, const MaybePlaylist &playlist) {
arg.beginStructure();
arg << playlist.valid;
arg << playlist.playlist;
arg.endStructure();
return arg;
}
const QDBusArgument &operator>>(const QDBusArgument &arg, MaybePlaylist &playlist) {
arg.beginStructure();
arg >> playlist.valid >> playlist.playlist;
arg.endStructure();
return arg;
}
namespace mpris {
const char *Mpris2::kMprisObjectPath = "/org/mpris/MediaPlayer2";
const char *Mpris2::kServiceName = "org.mpris.MediaPlayer2.strawberry";
const char *Mpris2::kFreedesktopPath = "org.freedesktop.DBus.Properties";
Mpris2::Mpris2(Application *app, QObject *parent)
: QObject(parent),
app_(app),
app_name_(QCoreApplication::applicationName()) {
new Mpris2Root(this);
new Mpris2TrackList(this);
new Mpris2Player(this);
new Mpris2Playlists(this);
if (!QDBusConnection::sessionBus().registerService(kServiceName)) {
qLog(Warning) << "Failed to register" << QString(kServiceName) << "on the session bus";
return;
}
if (!QDBusConnection::sessionBus().registerObject(kMprisObjectPath, this)) {
qLog(Warning) << "Failed to register" << QString(kMprisObjectPath) << "on the session bus";
return;
}
QObject::connect(app_->current_albumcover_loader(), &CurrentAlbumCoverLoader::AlbumCoverLoaded, this, &Mpris2::AlbumCoverLoaded);
QObject::connect(app_->player()->engine(), &EngineBase::StateChanged, this, &Mpris2::EngineStateChanged);
QObject::connect(app_->player(), &Player::VolumeChanged, this, &Mpris2::VolumeChanged);
QObject::connect(app_->player(), &Player::Seeked, this, &Mpris2::Seeked);
QObject::connect(app_->playlist_manager(), &PlaylistManager::PlaylistManagerInitialized, this, &Mpris2::PlaylistManagerInitialized);
QObject::connect(app_->playlist_manager(), &PlaylistManager::CurrentSongChanged, this, &Mpris2::CurrentSongChanged);
QObject::connect(app_->playlist_manager(), &PlaylistManager::PlaylistChanged, this, &Mpris2::PlaylistChangedSlot);
QObject::connect(app_->playlist_manager(), &PlaylistManager::CurrentChanged, this, &Mpris2::PlaylistCollectionChanged);
app_name_[0] = app_name_[0].toUpper();
if (!QGuiApplication::desktopFileName().isEmpty()) {
desktop_files_ << QGuiApplication::desktopFileName();
}
QStringList domain_split = QCoreApplication::organizationDomain().split(".");
std::reverse(domain_split.begin(), domain_split.end());
desktop_files_ << QStringList() << domain_split.join(".") + "." + QCoreApplication::applicationName().toLower();
desktop_files_ << QCoreApplication::applicationName().toLower();
desktop_file_ = desktop_files_.first();
data_dirs_ = QString(qgetenv("XDG_DATA_DIRS")).split(":");
data_dirs_.append("/usr/local/share");
data_dirs_.append("/usr/share");
for (const QString &directory : data_dirs_) {
for (const QString &desktop_file : desktop_files_) {
QString path = QString("%1/applications/%2.desktop").arg(directory, desktop_file);
if (QFile::exists(path)) {
desktop_file_ = desktop_file;
}
}
}
}
// when PlaylistManager gets it ready, we connect PlaylistSequence with this
void Mpris2::PlaylistManagerInitialized() {
QObject::connect(app_->playlist_manager()->sequence(), &PlaylistSequence::ShuffleModeChanged, this, &Mpris2::ShuffleModeChanged);
QObject::connect(app_->playlist_manager()->sequence(), &PlaylistSequence::RepeatModeChanged, this, &Mpris2::RepeatModeChanged);
}
void Mpris2::EngineStateChanged(Engine::State newState) {
if (newState != Engine::Playing && newState != Engine::Paused) {
last_metadata_ = QVariantMap();
EmitNotification("Metadata");
}
EmitNotification("CanPlay");
EmitNotification("CanPause");
EmitNotification("PlaybackStatus", PlaybackStatus(newState));
if (newState == Engine::Playing) EmitNotification("CanSeek", CanSeek(newState));
}
void Mpris2::VolumeChanged() { EmitNotification("Volume"); }
void Mpris2::ShuffleModeChanged() { EmitNotification("Shuffle"); }
void Mpris2::RepeatModeChanged() {
EmitNotification("LoopStatus");
EmitNotification("CanGoNext", CanGoNext());
EmitNotification("CanGoPrevious", CanGoPrevious());
}
void Mpris2::EmitNotification(const QString &name, const QVariant &val) {
EmitNotification(name, val, "org.mpris.MediaPlayer2.Player");
}
void Mpris2::EmitNotification(const QString &name, const QVariant &val, const QString &mprisEntity) {
QDBusMessage msg = QDBusMessage::createSignal(kMprisObjectPath, kFreedesktopPath, "PropertiesChanged");
QVariantMap map;
map.insert(name, val);
QVariantList args = QVariantList() << mprisEntity << map << QStringList();
msg.setArguments(args);
QDBusConnection::sessionBus().send(msg);
}
void Mpris2::EmitNotification(const QString &name) {
QVariant value;
if (name == "PlaybackStatus") value = PlaybackStatus();
else if (name == "LoopStatus") value = LoopStatus();
else if (name == "Shuffle") value = Shuffle();
else if (name == "Metadata") value = Metadata();
else if (name == "Volume") value = Volume();
else if (name == "Position") value = Position();
else if (name == "CanPlay") value = CanPlay();
else if (name == "CanPause") value = CanPause();
else if (name == "CanSeek") value = CanSeek();
else if (name == "CanGoNext") value = CanGoNext();
else if (name == "CanGoPrevious") value = CanGoPrevious();
if (value.isValid()) EmitNotification(name, value);
}
//------------------Root Interface--------------------------//
bool Mpris2::CanQuit() { return true; }
bool Mpris2::CanRaise() { return true; }
bool Mpris2::HasTrackList() { return true; }
QString Mpris2::Identity() const { return app_name_; }
QString Mpris2::DesktopEntryAbsolutePath() const {
for (const QString &directory : data_dirs_) {
for (const QString &desktop_file : desktop_files_) {
QString path = QString("%1/applications/%2.desktop").arg(directory, desktop_file);
if (QFile::exists(path)) {
return path;
}
}
}
return QString();
}
QString Mpris2::DesktopEntry() const { return desktop_file_; }
QStringList Mpris2::SupportedUriSchemes() {
static QStringList res = QStringList() << "file"
<< "http"
<< "cdda"
<< "smb"
<< "sftp";
return res;
}
QStringList Mpris2::SupportedMimeTypes() {
static QStringList res = QStringList() << "x-content/audio-player"
<< "application/ogg"
<< "application/x-ogg"
<< "application/x-ogm-audio"
<< "audio/flac"
<< "audio/ogg"
<< "audio/vorbis"
<< "audio/aac"
<< "audio/mp4"
<< "audio/mpeg"
<< "audio/mpegurl"
<< "audio/vnd.rn-realaudio"
<< "audio/x-flac"
<< "audio/x-oggflac"
<< "audio/x-vorbis"
<< "audio/x-vorbis+ogg"
<< "audio/x-speex"
<< "audio/x-wav"
<< "audio/x-wavpack"
<< "audio/x-ape"
<< "audio/x-mp3"
<< "audio/x-mpeg"
<< "audio/x-mpegurl"
<< "audio/x-ms-wma"
<< "audio/x-musepack"
<< "audio/x-pn-realaudio"
<< "audio/x-scpls"
<< "video/x-ms-asf";
return res;
}
void Mpris2::Raise() { emit RaiseMainWindow(); }
void Mpris2::Quit() { QCoreApplication::quit(); }
QString Mpris2::PlaybackStatus() const {
return PlaybackStatus(app_->player()->GetState());
}
QString Mpris2::PlaybackStatus(Engine::State state) {
switch (state) {
case Engine::Playing: return "Playing";
case Engine::Paused: return "Paused";
default: return "Stopped";
}
}
QString Mpris2::LoopStatus() const {
if (!app_->playlist_manager()->sequence()) {
return "None";
}
switch (app_->playlist_manager()->sequence()->repeat_mode()) {
case PlaylistSequence::Repeat_Album:
case PlaylistSequence::Repeat_Playlist: return "Playlist";
case PlaylistSequence::Repeat_Track: return "Track";
default: return "None";
}
}
void Mpris2::SetLoopStatus(const QString &value) {
PlaylistSequence::RepeatMode mode = PlaylistSequence::Repeat_Off;
if (value == "None") {
mode = PlaylistSequence::Repeat_Off;
}
else if (value == "Track") {
mode = PlaylistSequence::Repeat_Track;
}
else if (value == "Playlist") {
mode = PlaylistSequence::Repeat_Playlist;
}
app_->playlist_manager()->active()->sequence()->SetRepeatMode(mode);
}
double Mpris2::Rate() { return 1.0; }
void Mpris2::SetRate(double rate) {
if (rate == 0) {
app_->player()->Pause();
}
}
bool Mpris2::Shuffle() const {
return app_->playlist_manager()->sequence()->shuffle_mode() != PlaylistSequence::Shuffle_Off;
}
void Mpris2::SetShuffle(bool enable) {
app_->playlist_manager()->active()->sequence()->SetShuffleMode(enable ? PlaylistSequence::Shuffle_All : PlaylistSequence::Shuffle_Off);
}
QVariantMap Mpris2::Metadata() const { return last_metadata_; }
QString Mpris2::current_track_id() const {
return QString("/org/strawberrymusicplayer/strawberry/Track/%1").arg(QString::number(app_->playlist_manager()->active()->current_row()));
}
// We send Metadata change notification as soon as the process of changing song starts...
void Mpris2::CurrentSongChanged(const Song &song) {
AlbumCoverLoaded(song);
EmitNotification("CanPlay");
EmitNotification("CanPause");
EmitNotification("CanGoNext", CanGoNext());
EmitNotification("CanGoPrevious", CanGoPrevious());
EmitNotification("CanSeek", CanSeek());
}
// ... and we add the cover information later, when it's available.
void Mpris2::AlbumCoverLoaded(const Song &song, const AlbumCoverLoaderResult &result) {
last_metadata_ = QVariantMap();
song.ToXesam(&last_metadata_);
using mpris::AddMetadata;
AddMetadata("mpris:trackid", current_track_id(), &last_metadata_);
QUrl cover_url;
if (result.album_cover.cover_url.isValid() && result.album_cover.cover_url.isLocalFile() && QFile(result.album_cover.cover_url.toLocalFile()).exists()) {
cover_url = result.album_cover.cover_url;
}
else if (result.temp_cover_url.isValid() && result.temp_cover_url.isLocalFile()) {
cover_url = result.temp_cover_url;
}
if (cover_url.isValid()) AddMetadata("mpris:artUrl", cover_url.toString(), &last_metadata_);
AddMetadata("year", song.year(), &last_metadata_);
AddMetadata("bitrate", song.bitrate(), &last_metadata_);
EmitNotification("Metadata", last_metadata_);
}
double Mpris2::Volume() const { return app_->player()->GetVolume() / 100.0; }
void Mpris2::SetVolume(double value) { app_->player()->SetVolume(static_cast<int>(value * 100)); }
qint64 Mpris2::Position() const {
return app_->player()->engine()->position_nanosec() / kNsecPerUsec;
}
double Mpris2::MaximumRate() { return 1.0; }
double Mpris2::MinimumRate() { return 1.0; }
bool Mpris2::CanGoNext() const {
return app_->playlist_manager()->active() && app_->playlist_manager()->active()->next_row() != -1;
}
bool Mpris2::CanGoPrevious() const {
return app_->playlist_manager()->active() && (app_->playlist_manager()->active()->previous_row() != -1 || app_->player()->PreviousWouldRestartTrack());
}
bool Mpris2::CanPlay() const {
return app_->playlist_manager()->active() && app_->playlist_manager()->active()->rowCount() != 0;
}
// This one's a bit different than MPRIS 1 - we want this to be true even when the song is already paused or stopped.
bool Mpris2::CanPause() const {
return (app_->player()->GetCurrentItem() && app_->player()->GetState() == Engine::Playing && !(app_->player()->GetCurrentItem()->options() & PlaylistItem::PauseDisabled)) || PlaybackStatus() == "Paused" || PlaybackStatus() == "Stopped";
}
bool Mpris2::CanSeek() const { return CanSeek(app_->player()->GetState()); }
bool Mpris2::CanSeek(Engine::State state) const {
return app_->player()->GetCurrentItem() && state != Engine::Empty && !app_->player()->GetCurrentItem()->Metadata().is_stream();
}
bool Mpris2::CanControl() { return true; }
void Mpris2::Next() {
if (CanGoNext()) {
app_->player()->Next();
}
}
void Mpris2::Previous() {
if (CanGoPrevious()) {
app_->player()->Previous();
}
}
void Mpris2::Pause() {
if (CanPause() && app_->player()->GetState() != Engine::Paused) {
app_->player()->Pause();
}
}
void Mpris2::PlayPause() {
if (CanPause()) {
app_->player()->PlayPause();
}
}
void Mpris2::Stop() { app_->player()->Stop(); }
void Mpris2::Play() {
if (CanPlay()) {
app_->player()->Play();
}
}
void Mpris2::Seek(qint64 offset) {
if (CanSeek()) {
app_->player()->SeekTo(app_->player()->engine()->position_nanosec() / kNsecPerSec + offset / kUsecPerSec);
}
}
void Mpris2::SetPosition(const QDBusObjectPath &trackId, qint64 offset) {
if (CanSeek() && trackId.path() == current_track_id() && offset >= 0) {
offset *= kNsecPerUsec;
if (offset < app_->player()->GetCurrentItem()->Metadata().length_nanosec()) {
app_->player()->SeekTo(offset / kNsecPerSec);
}
}
}
void Mpris2::OpenUri(const QString &uri) {
app_->playlist_manager()->active()->InsertUrls(QList<QUrl>() << QUrl(uri), -1, true);
}
Track_Ids Mpris2::Tracks() {
// TODO
return Track_Ids();
}
bool Mpris2::CanEditTracks() { return false; }
TrackMetadata Mpris2::GetTracksMetadata(const Track_Ids &tracks) {
Q_UNUSED(tracks);
// TODO
return TrackMetadata();
}
void Mpris2::AddTrack(const QString &uri, const QDBusObjectPath &afterTrack, bool setAsCurrent) {
Q_UNUSED(uri);
Q_UNUSED(afterTrack);
Q_UNUSED(setAsCurrent);
// TODO
}
void Mpris2::RemoveTrack(const QDBusObjectPath &trackId) {
Q_UNUSED(trackId);
// TODO
}
void Mpris2::GoTo(const QDBusObjectPath &trackId) {
Q_UNUSED(trackId);
// TODO
}
quint32 Mpris2::PlaylistCount() const {
return app_->playlist_manager()->GetAllPlaylists().size();
}
QStringList Mpris2::Orderings() { return QStringList() << "User"; }
namespace {
QDBusObjectPath MakePlaylistPath(int id) {
return QDBusObjectPath(QString("/org/strawberrymusicplayer/strawberry/PlaylistId/%1").arg(id));
}
} // namespace
MaybePlaylist Mpris2::ActivePlaylist() const {
MaybePlaylist maybe_playlist;
Playlist *current_playlist = app_->playlist_manager()->current();
maybe_playlist.valid = current_playlist;
if (!current_playlist) {
return maybe_playlist;
}
maybe_playlist.playlist.id = MakePlaylistPath(current_playlist->id());
maybe_playlist.playlist.name = app_->playlist_manager()->GetPlaylistName(current_playlist->id());
return maybe_playlist;
}
void Mpris2::ActivatePlaylist(const QDBusObjectPath &playlist_id) {
QStringList split_path = playlist_id.path().split('/');
qLog(Debug) << Q_FUNC_INFO << playlist_id.path() << split_path;
if (split_path.isEmpty()) {
return;
}
bool ok = false;
int p = split_path.last().toInt(&ok);
if (!ok) {
return;
}
if (!app_->playlist_manager()->IsPlaylistOpen(p)) {
qLog(Error) << "Playlist isn't opened!";
return;
}
app_->playlist_manager()->SetActivePlaylist(p);
app_->player()->Next();
}
// TODO: Support sort orders.
MprisPlaylistList Mpris2::GetPlaylists(quint32 index, quint32 max_count, const QString &order, bool reverse_order) {
Q_UNUSED(order);
QList<Playlist*> playlists = app_->playlist_manager()->GetAllPlaylists();
MprisPlaylistList ret;
ret.reserve(playlists.count());
for (Playlist *p : playlists) {
MprisPlaylist mpris_playlist;
mpris_playlist.id = MakePlaylistPath(p->id());
mpris_playlist.name = app_->playlist_manager()->GetPlaylistName(p->id());
ret << mpris_playlist;
}
if (reverse_order) {
std::reverse(ret.begin(), ret.end());
}
return ret.mid(index, max_count);
}
void Mpris2::PlaylistChangedSlot(Playlist *playlist) {
MprisPlaylist mpris_playlist;
mpris_playlist.id = MakePlaylistPath(playlist->id());
mpris_playlist.name = app_->playlist_manager()->GetPlaylistName(playlist->id());
emit PlaylistChanged(mpris_playlist);
}
void Mpris2::PlaylistCollectionChanged(Playlist *playlist) {
Q_UNUSED(playlist);
EmitNotification("PlaylistCount", "", "org.mpris.MediaPlayer2.Playlists");
}
} // namespace mpris
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