bumblebee-status/bumblebee/modules/pulseaudio.py
Tobias Witek b89e384b20 [modules/pulseaudio] Ignore errors when starting pulseaudio daemon
This does not really solve the issue indicated in the ticket, but at
least it should leave the user with a working bar.

see #108
2017-06-09 11:01:25 +02:00

111 lines
3.5 KiB
Python

# pylint: disable=C0111,R0903
"""Displays volume and mute status of PulseAudio devices.
Aliases: pasink, pasource
Requires the following executable:
* pactl
"""
import re
import bumblebee.util
import bumblebee.input
import bumblebee.output
import bumblebee.engine
ALIASES = [ "pasink", "pasource" ]
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
super(Module, self).__init__(engine, config,
bumblebee.output.Widget(full_text=self.volume)
)
try:
bumblebee.util.execute("pulseaudio --start")
except Exception:
pass
self._left = 0
self._right = 0
self._mono = 0
self._mute = False
channel = "sink" if self.name == "pasink" else "source"
self._patterns = [
{ "expr": "name:", "callback": (lambda line: False) },
{ "expr": "muted:", "callback": (lambda line: self.mute(False if " no" in line.lower() else True)) },
{ "expr": "volume:", "callback": self.getvolume },
]
engine.input.register_callback(self, button=bumblebee.input.RIGHT_MOUSE, cmd="pavucontrol")
events = [
{ "type": "mute", "action": "toggle", "button": bumblebee.input.LEFT_MOUSE },
{ "type": "volume", "action": "+2%", "button": bumblebee.input.WHEEL_UP },
{ "type": "volume", "action": "-2%", "button": bumblebee.input.WHEEL_DOWN },
]
for event in events:
engine.input.register_callback(self, button=event["button"],
cmd="pactl set-{}-{} @DEFAULT_{}@ {}".format(channel, event["type"],
channel.upper(), event["action"]))
def mute(self, value):
self._mute = value
def getvolume(self, line):
if "mono" in line:
m = re.search(r'mono:.*\s*\/\s*(\d+)%', line)
if m:
self._mono = m.group(1)
else:
m = re.search(r'left:.*\s*\/\s*(\d+)%.*right:.*\s*\/\s*(\d+)%', line)
if m:
self._left = m.group(1)
self._right = m.group(2)
return True
def _default_device(self):
output = bumblebee.util.execute("pacmd stat")
pattern = "Default sink name: " if self.name == "pasink" else "Default source name: "
for line in output.split("\n"):
if line.startswith(pattern):
return line.replace(pattern, "")
return "n/a"
def volume(self, widget):
if int(self._mono) > 0:
return "{}%".format(self._mono)
elif self._left == self._right:
return "{}%".format(self._left)
else:
return "{}%/{}%".format(self._left, self._right)
return "n/a"
def update(self, widgets):
channel = "sinks" if self.name == "pasink" else "sources"
device = self._default_device()
result = bumblebee.util.execute("pacmd list-{}".format(channel))
found = False
for line in result.split("\n"):
if device in line:
found = True
continue
if found == False:
continue
for pattern in self._patterns:
if not pattern["expr"] in line:
continue
if pattern["callback"](line) == False and found == True:
return
def state(self, widget):
if self._mute:
return [ "warning", "muted" ]
return [ "unmuted" ]
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4