Source code for libqtile.widget.bluetooth

# Copyright (c) 2021 Graeme Holliday
#
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from dbus_next.aio import MessageBus
from dbus_next.constants import BusType

from libqtile.widget import base

BLUEZ = 'org.bluez'
BLUEZ_PATH = '/org/bluez/hci0'
BLUEZ_ADAPTER = 'org.bluez.Adapter1'
BLUEZ_DEVICE = 'org.bluez.Device1'
BLUEZ_PROPERTIES = 'org.freedesktop.DBus.Properties'


[docs]class Bluetooth(base._TextBox): """ Displays bluetooth status or connected device. Uses dbus to communicate with the system bus. Widget requirements: dbus-next_. .. _dbus-next: https://pypi.org/project/dbus-next/ """ orientations = base.ORIENTATION_HORIZONTAL defaults = [ ('hci', '/dev_XX_XX_XX_XX_XX_XX', 'hci0 device path, can be found with d-feet or similar dbus explorer.') ] def __init__(self, **config): base._TextBox.__init__(self, '', **config) self.add_defaults(Bluetooth.defaults) async def _config_async(self): # set initial values self.powered = await self._init_adapter() self.connected, self.device = await self._init_device() self.update_text() async def _init_adapter(self): # set up interface to adapter properties using high-level api bus = await MessageBus(bus_type=BusType.SYSTEM).connect() introspect = await bus.introspect(BLUEZ, BLUEZ_PATH) obj = bus.get_proxy_object(BLUEZ, BLUEZ_PATH, introspect) iface = obj.get_interface(BLUEZ_ADAPTER) props = obj.get_interface(BLUEZ_PROPERTIES) powered = await iface.get_powered() # subscribe receiver to property changed props.on_properties_changed(self._signal_received) return powered async def _init_device(self): # set up interface to device properties using high-level api bus = await MessageBus(bus_type=BusType.SYSTEM).connect() introspect = await bus.introspect(BLUEZ, BLUEZ_PATH + self.hci) obj = bus.get_proxy_object(BLUEZ, BLUEZ_PATH + self.hci, introspect) iface = obj.get_interface(BLUEZ_DEVICE) props = obj.get_interface(BLUEZ_PROPERTIES) connected = await iface.get_connected() name = await iface.get_name() # subscribe receiver to property changed props.on_properties_changed(self._signal_received) return connected, name def _signal_received(self, interface_name, changed_properties, _invalidated_properties): powered = changed_properties.get('Powered', None) if powered is not None: self.powered = powered.value self.update_text() connected = changed_properties.get('Connected', None) if connected is not None: self.connected = connected.value self.update_text() device = changed_properties.get('Name', None) if device is not None: self.device = device.value self.update_text() def update_text(self): text = "" if not self.powered: text = 'off' else: if not self.connected: text = 'on' else: text = self.device self.update(text)