/usr/lib/python3/dist-packages/gnomemusic/mpris.py is in gnome-music 3.14.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (c) 2013 Vadim Rutkovsky <vrutkovs@redhat.com>
#
# GNOME Music 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 2 of the License, or
# (at your option) any later version.
#
# GNOME Music 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 GNOME Music; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# The GNOME Music authors hereby grant permission for non-GPL compatible
# GStreamer plugins to be used and distributed together with GStreamer
# and GNOME Music. This permission is above and beyond the permissions
# granted by the GPL license by which GNOME Music is covered. If you
# modify this code, you may extend this exception to your version of the
# code, but you are not obligated to do so. If you do not wish to do so,
# delete this exception statement from your version.
import dbus
import dbus.service
from dbus.mainloop.glib import DBusGMainLoop
from gnomemusic.player import PlaybackStatus, RepeatType
from gnomemusic.albumArtCache import AlbumArtCache
from gettext import gettext as _
from gi.repository import Grl
from gnomemusic import log
import logging
logger = logging.getLogger(__name__)
class MediaPlayer2Service(dbus.service.Object):
MEDIA_PLAYER2_IFACE = 'org.mpris.MediaPlayer2'
MEDIA_PLAYER2_PLAYER_IFACE = 'org.mpris.MediaPlayer2.Player'
def __init__(self, app):
DBusGMainLoop(set_as_default=True)
name = dbus.service.BusName('org.mpris.MediaPlayer2.GnomeMusic', dbus.SessionBus())
dbus.service.Object.__init__(self, name, '/org/mpris/MediaPlayer2')
self.app = app
self.player = app.get_active_window().player
self.player.connect('current-changed', self._on_current_changed)
self.player.connect('thumbnail-updated', self._on_thumbnail_updated)
self.player.connect('playback-status-changed', self._on_playback_status_changed)
self.player.connect('repeat-mode-changed', self._on_repeat_mode_changed)
self.player.connect('volume-changed', self._on_volume_changed)
self.player.connect('prev-next-invalidated', self._on_prev_next_invalidated)
self.player.connect('seeked', self._on_seeked)
self.first_song_handler = 0
@log
def _get_playback_status(self):
state = self.player.get_playback_status()
if state == PlaybackStatus.PLAYING:
return 'Playing'
elif state == PlaybackStatus.PAUSED:
return 'Paused'
else:
return 'Stopped'
@log
def _get_loop_status(self):
if self.player.repeat == RepeatType.NONE:
return 'None'
elif self.player.repeat == RepeatType.SONG:
return 'Track'
else:
return 'Playlist'
@log
def _get_metadata(self):
media = self.player.get_current_media()
if not media:
return {}
metadata = {
'mpris:trackid': '/org/mpris/MediaPlayer2/Track/%s' % media.get_id(),
'xesam:url': media.get_url()
}
try:
length = dbus.Int64(media.get_duration() * 1000000)
assert length is not None
metadata['mpris:length'] = length
except:
pass
try:
trackNumber = media.get_track_number()
assert trackNumber is not None
metadata['xesam:trackNumber'] = trackNumber
except:
pass
try:
useCount = media.get_play_count()
assert useCount is not None
metadata['xesam:useCount'] = useCount
except:
pass
try:
userRating = media.get_rating()
assert userRating is not None
metadata['xesam:userRating'] = userRating
except:
pass
try:
title = AlbumArtCache.get_media_title(media)
assert title is not None
metadata['xesam:title'] = title
except:
pass
try:
album = media.get_album()
assert album is not None
except:
try:
album = media.get_string(Grl.METADATA_KEY_ALBUM)
assert album is not None
except:
album = _("Unknown Album")
finally:
metadata['xesam:album'] = album
try:
artist = media.get_artist()
assert artist is not None
except:
try:
artist = media.get_string(Grl.METADATA_KEY_ARTIST)
assert artist is not None
except:
try:
artist = media.get_author()
assert artist is not None
except (AssertionError, ValueError):
artist = _("Unknown Artist")
finally:
metadata['xesam:artist'] = [artist]
metadata['xesam:albumArtist'] = [artist]
try:
genre = media.get_genre()
assert genre is not None
metadata['xesam:genre'] = genre
except:
pass
try:
lastUsed = media.get_last_played()
assert lastUsed is not None
metadata['xesam:lastUsed'] = lastUsed
except:
pass
try:
artUrl = media.get_thumbnail()
assert artUrl is not None
metadata['mpris:artUrl'] = artUrl
except:
pass
return metadata
@log
def _on_current_changed(self, player, data=None):
if self.player.repeat == RepeatType.SONG:
self.Seeked(0)
self.PropertiesChanged(self.MEDIA_PLAYER2_PLAYER_IFACE,
{
'Metadata': dbus.Dictionary(self._get_metadata(),
signature='sv'),
'CanPlay': True,
'CanPause': True,
},
[])
@log
def _on_thumbnail_updated(self, player, path, data=None):
self.PropertiesChanged(self.MEDIA_PLAYER2_PLAYER_IFACE,
{
'Metadata': dbus.Dictionary(self._get_metadata(),
signature='sv'),
},
[])
@log
def _on_playback_status_changed(self, data=None):
self.PropertiesChanged(self.MEDIA_PLAYER2_PLAYER_IFACE,
{
'PlaybackStatus': self._get_playback_status(),
},
[])
@log
def _on_repeat_mode_changed(self, player, data=None):
self.PropertiesChanged(self.MEDIA_PLAYER2_PLAYER_IFACE,
{
'LoopStatus': self._get_loop_status(),
'Shuffle': self.player.repeat == RepeatType.SHUFFLE,
},
[])
@log
def _on_volume_changed(self, player, data=None):
self.PropertiesChanged(self.MEDIA_PLAYER2_PLAYER_IFACE,
{
'Volume': dbus.Double(self.player.get_volume()),
},
[])
@log
def _on_prev_next_invalidated(self, player, data=None):
self.PropertiesChanged(self.MEDIA_PLAYER2_PLAYER_IFACE,
{
'CanGoNext': self.player.has_next(),
'CanGoPrevious': self.player.has_previous(),
},
[])
@log
def _play_first_song(self, model, path, iter_, data=None):
if self.first_song_handler:
model.disconnect(self.first_song_handler)
self.first_song_handler = 0
self.player.set_playlist('Songs', None, model, iter_, 5)
self.player.set_playing(True)
@log
def _on_seeked(self, player, position, data=None):
self.Seeked(position)
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_IFACE)
def Raise(self):
self.app.do_activate()
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_IFACE)
def Quit(self):
self.app.quit()
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE)
def Next(self):
self.player.play_next()
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE)
def Previous(self):
self.player.play_previous()
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE)
def Pause(self):
self.player.set_playing(False)
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE)
def PlayPause(self):
self.player.play_pause()
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE)
def Stop(self):
self.player.Stop()
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE)
def Play(self):
if self.player.playlist is not None:
self.player.set_playing(True)
elif self.first_song_handler == 0:
window = self.app.get_active_window()
window._stack.set_visible_child(window.views[2])
model = window.views[2]._model
if model.iter_n_children(None):
_iter = model.get_iter_first()
self._play_first_song(model, model.get_path(_iter), _iter)
else:
self.first_song_handler = model.connect('row-inserted', self._play_first_song)
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE,
in_signature='x')
def Seek(self, offset):
self.player.set_position(offset, True, True)
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE,
in_signature='ox')
def SetPosition(self, track_id, position):
if track_id != self._get_metadata().get('mpris:trackid'):
return
self.player.set_position(position)
@dbus.service.method(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE,
in_signature='s')
def OpenUri(self, uri):
pass
@dbus.service.signal(dbus_interface=MEDIA_PLAYER2_PLAYER_IFACE,
signature='x')
def Seeked(self, position):
pass
@dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
in_signature='ss', out_signature='v')
def Get(self, interface_name, property_name):
return self.GetAll(interface_name)[property_name]
@dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
in_signature='s', out_signature='a{sv}')
def GetAll(self, interface_name):
if interface_name == self.MEDIA_PLAYER2_IFACE:
return {
'CanQuit': True,
'CanRaise': True,
'HasTrackList': False,
'Identity': 'Music',
'DesktopEntry': 'gnome-music',
'SupportedUriSchemes': [
'file'
],
'SupportedMimeTypes': [
'application/ogg',
'audio/x-vorbis+ogg',
'audio/x-flac',
'audio/mpeg'
],
}
elif interface_name == self.MEDIA_PLAYER2_PLAYER_IFACE:
return {
'PlaybackStatus': self._get_playback_status(),
'LoopStatus': self._get_loop_status(),
'Rate': dbus.Double(1.0),
'Shuffle': self.player.repeat == RepeatType.SHUFFLE,
'Metadata': dbus.Dictionary(self._get_metadata(), signature='sv'),
'Volume': dbus.Double(self.player.get_volume()),
'Position': dbus.Int64(self.player.get_position()),
'MinimumRate': dbus.Double(1.0),
'MaximumRate': dbus.Double(1.0),
'CanGoNext': self.player.has_next(),
'CanGoPrevious': self.player.has_previous(),
'CanPlay': self.player.currentTrack is not None,
'CanPause': self.player.currentTrack is not None,
'CanSeek': True,
'CanControl': True,
}
else:
raise dbus.exceptions.DBusException(
'org.mpris.MediaPlayer2.GnomeMusic',
'This object does not implement the %s interface'
% interface_name)
@dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
in_signature='ssv')
def Set(self, interface_name, property_name, new_value):
if interface_name == self.MEDIA_PLAYER2_IFACE:
pass
elif interface_name == self.MEDIA_PLAYER2_PLAYER_IFACE:
if property_name == 'Rate':
pass
elif property_name == 'Volume':
self.player.set_volume(new_value)
elif property_name == 'LoopStatus':
if new_value == 'None':
self.player.set_repeat_mode(RepeatType.NONE)
elif new_value == 'Track':
self.player.set_repeat_mode(RepeatType.SONG)
elif new_value == 'Playlist':
self.player.set_repeat_mode(RepeatType.ALL)
elif property_name == 'Shuffle':
if (new_value and self.player.get_repeat_mode() != RepeatType.SHUFFLE):
self.set_repeat_mode(RepeatType.SHUFFLE)
elif new_value and self.player.get_repeat_mode() == RepeatType.SHUFFLE:
self.set_repeat_mode(RepeatType.NONE)
else:
raise dbus.exceptions.DBusException(
'org.mpris.MediaPlayer2.GnomeMusic',
'This object does not implement the %s interface'
% interface_name)
@dbus.service.signal(dbus_interface=dbus.PROPERTIES_IFACE,
signature='sa{sv}as')
def PropertiesChanged(self, interface_name, changed_properties,
invalidated_properties):
pass
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