def set_volume(self, volume: float) -> None:
"""Set volume to a value between 0 and 1."""
old_volume = self._volume
self._volume = volume
# If we've got nothing we're supposed to be playing,
# don't touch itunes/music.
if self._current_playlist is None:
return
# If volume is going to zero, stop actually playing
# but don't clear playlist.
if old_volume > 0.0 and volume == 0.0:
try:
assert self._orig_volume is not None
_ba.mac_music_app_stop()
_ba.mac_music_app_set_volume(self._orig_volume)
except Exception as exc:
print('Error stopping iTunes music:', exc)
elif self._volume > 0:
# If volume was zero, store pre-playing volume and start
# playing.
if old_volume == 0.0:
self._orig_volume = _ba.mac_music_app_get_volume()
self._update_mac_music_app_volume()
if old_volume == 0.0:
self._play_current_playlist()
def _handle_play_command(self, target: Optional[str]) -> None:
if target is None:
if self._current_playlist is not None and self._volume > 0:
try:
assert self._orig_volume is not None
_ba.mac_music_app_stop()
_ba.mac_music_app_set_volume(self._orig_volume)
except Exception as exc:
print('Error stopping iTunes music:', exc)
self._current_playlist = None
else:
# If we've got something playing with positive
# volume, stop it.
if self._current_playlist is not None and self._volume > 0:
try:
assert self._orig_volume is not None
_ba.mac_music_app_stop()
_ba.mac_music_app_set_volume(self._orig_volume)
except Exception as exc:
print('Error stopping iTunes music:', exc)
# Set our playlist and play it if our volume is up.
self._current_playlist = target
if self._volume > 0:
self._orig_volume = (_ba.mac_music_app_get_volume())
self._update_mac_music_app_volume()
self._play_current_playlist()
def run(self) -> None:
"""Run the Music.app thread."""
from ba._general import Call
from ba._lang import Lstr
from ba._enums import TimeType
_ba.set_thread_name("BA_MacMusicAppThread")
_ba.mac_music_app_init()
# Let's mention to the user we're launching Music.app in case
# it causes any funny business (this used to background the app
# sometimes, though I think that is fixed now)
def do_print() -> None:
_ba.timer(1.0,
Call(_ba.screenmessage, Lstr(resource='usingItunesText'),
(0, 1, 0)),
timetype=TimeType.REAL)
_ba.pushcall(do_print, from_other_thread=True)
# Here we grab this to force the actual launch.
_ba.mac_music_app_get_volume()
_ba.mac_music_app_get_library_source()
done = False
while not done:
self._commands_available.wait()
self._commands_available.clear()
# We're not protecting this list with a mutex but we're
# just using it as a simple queue so it should be fine.
while self._commands:
cmd = self._commands.pop(0)
if cmd[0] == 'DIE':
self._handle_die_command()
done = True
break
if cmd[0] == 'PLAY':
self._handle_play_command(target=cmd[1])
elif cmd[0] == 'GET_PLAYLISTS':
self._handle_get_playlists_command(target=cmd[1])
del cmd # Allows the command data/callback/etc to be freed.
