bumblebee-status/modules/core/cmus.py
2020-04-28 20:16:29 +02:00

131 lines
5.2 KiB
Python

# pylint: disable=C0111,R0903
"""Displays information about the current song in cmus.
Requires the following executable:
* cmus-remote
Parameters:
* cmus.format: Format string for the song information. Tag values can be put in curly brackets (i.e. {artist})
Additional tags:
* {file} - full song file name
* {file1} - song file name without path prefix
if {file} = '/foo/bar.baz', then {file1} = 'bar.baz'
* {file2} - song file name without path prefix and extension suffix
if {file} = '/foo/bar.baz', then {file2} = 'bar'
* cmus.layout: Space-separated list of widgets to add. Possible widgets are the buttons/toggles cmus.prev, cmus.next, cmus.shuffle and cmus.repeat, and the main display with play/pause function cmus.main.
* cmus.server: The address of the cmus server, either a UNIX socket or host[:port]. Connects to the local instance by default.
* cmus.passwd: The password to use for the TCP/IP connection.
"""
from collections import defaultdict
import os
import string
import bumblebee.util
import bumblebee.input
import bumblebee.output
import bumblebee.engine
from bumblebee.output import scrollable
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
super(Module, self).__init__(engine, config, [])
self._layout = self.parameter('layout', 'cmus.prev cmus.main cmus.next cmus.shuffle cmus.repeat')
self._fmt = self.parameter('format', '{artist} - {title} {position}/{duration}')
self._server = self.parameter('server', None)
self._passwd = self.parameter('passwd', None)
self._status = None
self._shuffle = False
self._repeat = False
self._tags = defaultdict(lambda: '')
# Create widgets
widget_list = []
widget_map = {}
for widget_name in self._layout.split():
widget = bumblebee.output.Widget(name=widget_name)
widget_list.append(widget)
self._cmd = 'cmus-remote'
if self._server is not None:
self._cmd = '{cmd} --server {server}'.format(cmd=self._cmd, server=self._server)
if self._passwd is not None:
self._cmd = '{cmd} --passwd {passwd}'.format(cmd=self._cmd, passwd=self._passwd)
if widget_name == 'cmus.prev':
widget_map[widget] = {'button': bumblebee.input.LEFT_MOUSE, 'cmd': '{cmd} -r'.format(cmd=self._cmd)}
elif widget_name == 'cmus.main':
widget_map[widget] = {'button': bumblebee.input.LEFT_MOUSE, 'cmd': '{cmd} -u'.format(cmd=self._cmd)}
widget.full_text(self.description)
elif widget_name == 'cmus.next':
widget_map[widget] = {'button': bumblebee.input.LEFT_MOUSE, 'cmd': '{cmd} -n'.format(cmd=self._cmd)}
elif widget_name == 'cmus.shuffle':
widget_map[widget] = {'button': bumblebee.input.LEFT_MOUSE, 'cmd': '{cmd} -S'.format(cmd=self._cmd)}
elif widget_name == 'cmus.repeat':
widget_map[widget] = {'button': bumblebee.input.LEFT_MOUSE, 'cmd': '{cmd} -R'.format(cmd=self._cmd)}
else:
raise KeyError('The cmus module does not support a {widget_name!r} widget'.format(widget_name=widget_name))
self.widgets(widget_list)
# Register input callbacks
for widget, callback_options in widget_map.items():
engine.input.register_callback(widget, **callback_options)
def hidden(self):
return self._status is None
@scrollable
def description(self, widget):
return string.Formatter().vformat(self._fmt, (), self._tags)
def update(self, widgets):
self._load_song()
def state(self, widget):
returns = {
'cmus.shuffle': 'shuffle-on' if self._shuffle else 'shuffle-off',
'cmus.repeat': 'repeat-on' if self._repeat else 'repeat-off',
'cmus.prev': 'prev',
'cmus.next': 'next',
}
return returns.get(widget.name, self._status)
def _eval_line(self, line):
if line.startswith('file '):
full_file = line[5:]
file1 = os.path.basename(full_file)
file2 = os.path.splitext(file1)[0]
self._tags.update({'file': full_file})
self._tags.update({'file1': file1})
self._tags.update({'file2': file2})
return
name, key, value = (line.split(' ', 2) + [None, None])[:3]
if name == 'status':
self._status = key
if name == 'tag':
self._tags.update({key: value})
if name in ['duration', 'position']:
self._tags.update({name: bumblebee.util.durationfmt(int(key))})
if name == 'set' and key == 'repeat':
self._repeat = value == 'true'
if name == 'set' and key == 'shuffle':
self._shuffle = value == 'true'
def _load_song(self):
info = ''
try:
info = bumblebee.util.execute('{cmd} -Q'.format(cmd=self._cmd))
except RuntimeError:
self._status = None
self._tags = defaultdict(lambda: '')
for line in info.split('\n'):
self._eval_line(line)
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