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#!/usr/bin/env python
from gi.repository import Notify
import subprocess
from time import sleep, time
from sys import argv
import dbus
def send_notification(title, text):
try:
if Notify.init(argv[0]):
n = Notify.Notification.new("Notify")
n.update(title, text)
n.set_urgency(2)
if not n.show():
raise SyntaxError("sending notification failed!")
else:
raise SyntaxError("can't initialize notification!")
except SyntaxError as error:
print(error)
if error == "sending notification failed!":
Notify.uninit()
else:
Notify.uninit()
def run_cmd(cmdlist):
try:
stdout = subprocess.check_output(cmdlist)
except subprocess.CalledProcessError:
pass
else:
if stdout:
return stdout
def run_dbus_method(bus_type, obj, path, interface, method, arg):
if bus_type == "session":
bus = dbus.SessionBus()
if bus_type == "system":
bus = dbus.SystemBus()
proxy = bus.get_object(obj, path)
method = proxy.get_dbus_method(method, interface)
if arg:
return method(arg)
else:
return method()
def suspend_system():
run_dbus_method('session',
'com.canonical.Unity',
'/com/canonical/Unity/Session',
'com.canonical.Unity.Session',
'Suspend', 'None')
def get_battery_percentage():
output = run_cmd(['upower', '--dump']).decode().split('\n')
found_battery = False
for line in output:
if 'BAT' in line:
found_battery = True
if found_battery and 'percentage' in line:
return line.split()[1].split('%')[0]
def main():
end = time()
battery_path = ""
for line in run_cmd(['upower', '-e']).decode().split('\n'):
if 'battery_BAT' in line:
battery_path = line
break
while True:
notified = False
while subprocess.call(['on_ac_power']) == 0:
sleep(0.25)
run_dbus_method('system', 'org.freedesktop.UPower',
battery_path, 'org.freedesktop.UPower.Device',
'Refresh', 'None')
battery_percentage = int(get_battery_percentage())
if battery_percentage == int(argv[2]) and not notified:
subprocess.call( ['zenity', '--info','--text', 'Battery reached' + argv[2] + '%' ] )
notified = True
while subprocess.call(['on_ac_power']) == 1:
sleep(0.25)
run_dbus_method('system', 'org.freedesktop.UPower',
battery_path, 'org.freedesktop.UPower.Device',
'Refresh', 'None')
battery_percentage = int(get_battery_percentage())
if battery_percentage <= int(argv[1]):
if battery_percentage <= 10:
send_notification('Low Battery',
'Will suspend in 60 seconds')
sleep(60)
suspend_system()
continue
if end < time():
end = time() + 600
send_notification('Low Battery', 'Plug in your charger')
if __name__ == '__main__':
main()
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