WIP: upower stuff for bluetooth battery level display

upower
Simon Bruder 2021-08-21 11:24:37 +02:00
parent 2c3e65cf5c
commit 2eaa37fe3c
Signed by: simon
GPG Key ID: 8D3C82F9F309F8EC
2 changed files with 63 additions and 0 deletions

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@ -22,6 +22,8 @@ lib.mkIf config.sbruder.gui.enable {
# steam (and other high quality software) still ships 32 bit binaries
hardware.opengl.driSupport32Bit = lib.mkDefault pkgs.stdenv.isx86_64;
services.upower.enable = true;
environment.systemPackages = with pkgs; [
pkgs.gnome3.adwaita-icon-theme # lutris requires system-wide installation
];

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@ -0,0 +1,61 @@
from xml.etree import ElementTree
import dbus
import re
def undbusify_dict_inner(tup):
k, v = tup
k = str(k)
if type(v) == dbus.String:
v = str(v)
elif type(v) == dbus.Double:
v = float(v)
elif type(v) == dbus.UInt32 or type(v) == dbus.UInt64 or type(v) == dbus.Int64:
v = int(v)
elif type(v) == dbus.Boolean:
v = bool(v)
return k, v
def undbusify_dict(d):
return dict(map(undbusify_dict_inner, d.items()))
def get_upower_devices(bus):
obj = bus.get_object("org.freedesktop.UPower", "/org/freedesktop/UPower/devices")
iface = dbus.Interface(obj, "org.freedesktop.DBus.Introspectable")
for child in ElementTree.fromstring(iface.Introspect()):
yield child.attrib["name"]
def get_upower_device_props(bus, device):
obj = bus.get_object(
"org.freedesktop.UPower", f"/org/freedesktop/UPower/devices/{device}"
)
return undbusify_dict(
obj.GetAll(
"org.freedesktop.UPower.Device",
dbus_interface="org.freedesktop.DBus.Properties",
)
)
def device_pred(device: str) -> bool:
return re.match("gaming_input_hid_.*_battery", device)
bus = dbus.SystemBus()
devices = filter(device_pred, get_upower_devices(bus))
for device in devices:
props = get_upower_device_props(bus, device)
pretty_device_name = (
props["Vendor"]
+ " " * bool(props["Vendor"]) * bool(props["Model"])
+ props["Model"]
)
percentage = props["Percentage"]
print(pretty_device_name, percentage)