215 lines
7.4 KiB
Python
215 lines
7.4 KiB
Python
# pylint: disable=C0111,R0903
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"""Displays battery status, remaining percentage and charging information.
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Parameters:
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* battery.device : Comma-separated list of battery devices to read information from (defaults to auto for auto-detection)
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* battery.warning : Warning threshold in % of remaining charge (defaults to 20)
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* battery.critical : Critical threshold in % of remaining charge (defaults to 10)
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* battery.showdevice : If set to 'true', add the device name to the widget (defaults to False)
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* battery.decorate : If set to 'false', hides additional icons (charging, etc.) (defaults to True)
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* battery.showpowerconsumption: If set to 'true', show current power consumption (defaults to False)
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* battery.compact-devices : If set to 'true', compacts multiple batteries into a single entry (default to False)
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(partially) contributed by `martindoublem <https://github.com/martindoublem>`_ - many thanks!
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"""
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import os
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import glob
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import logging
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log = logging.getLogger(__name__)
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try:
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import power
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except ImportError:
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log.warning('unable to import module "power": Time estimates will not be available')
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import core.module
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import core.input
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import util.format
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class BatteryManager(object):
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def remaining(self):
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try:
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estimate = power.PowerManagement().get_time_remaining_estimate()
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# do not show remaining if on AC
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if estimate == power.common.TIME_REMAINING_UNLIMITED:
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return None
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return estimate * 60 # return value in seconds
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except Exception as e:
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return -1
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return -1
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def read(self, battery, component, default=None):
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path = "/sys/class/power_supply/{}".format(battery)
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if not os.path.exists(path):
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return default
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try:
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with open("{}/{}".format(path, component)) as f:
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return f.read().strip()
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except IOError:
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return "n/a"
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return default
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def capacity(self, battery):
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capacity = self.read(battery, "capacity", 100)
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if capacity != "n/a":
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capacity = int(capacity)
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return capacity if capacity < 100 else 100
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def capacity_all(self, batteries):
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now = 0
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full = 0
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for battery in batteries:
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try:
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with open(
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"/sys/class/power_supply/{}/energy_full".format(battery)
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) as f:
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full += int(f.read())
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with open("/sys/class/power_supply/{}/energy_now".format(battery)) as f:
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now += int(f.read())
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except IOError:
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return "n/a"
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return int(float(now) / float(full) * 100.0)
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def isac(self, battery):
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path = "/sys/class/power_supply/{}".format(battery)
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return not os.path.exists(path)
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def isac_any(self, batteries):
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for battery in batteries:
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if self.isac(battery):
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return True
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return False
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def consumption(self, battery):
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consumption = self.read(battery, "power_now", "n/a")
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if consumption == "n/a":
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return "n/a"
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return "{}W".format(int(consumption) / 1000000)
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def charge(self, battery):
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return self.read(battery, "status", "n/a")
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def charge_any(self, batteries):
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for battery in batteries:
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if self.charge(battery) == "Discharging":
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return "Discharging"
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return "Charged"
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class Module(core.module.Module):
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def __init__(self, config, theme):
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super().__init__(config, theme, [])
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self.__manager = BatteryManager()
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self._batteries = util.format.aslist(self.parameter("device", "auto"))
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if self._batteries[0] == "auto":
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self._batteries = [
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os.path.basename(battery)
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for battery in glob.glob("/sys/class/power_supply/BAT*")
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]
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core.input.register(
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self, button=core.input.LEFT_MOUSE, cmd="gnome-power-statistics"
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)
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if len(self._batteries) == 0:
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widget = self.add_widget(full_text=self.ac, name="ac")
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widget.set("ac", True)
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widget.set("capacity", 100)
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else:
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if util.format.asbool(self.parameter("compact-devices", False)):
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widget = self.add_widget(full_text=self.capacity, name="all-batteries")
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else:
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for battery in self._batteries:
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log.debug("adding new widget for {}".format(battery))
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widget = self.add_widget(full_text=self.capacity, name=battery)
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for w in self.widgets():
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if util.format.asbool(self.parameter("decorate", True)) == False:
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widget.set("theme.exclude", "suffix")
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def hidden(self):
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return len(self._batteries) == 0
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def ac(self, widget):
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return "ac"
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def capacity(self, widget):
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if widget.name == "all-batteries":
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capacity = self.__manager.capacity_all(self._batteries)
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else:
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capacity = self.__manager.capacity(widget.name)
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widget.set("capacity", capacity)
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widget.set("ac", self.__manager.isac_any(self._batteries))
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widget.set("theme.minwidth", "100%")
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# Read power conumption
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if util.format.asbool(self.parameter("showpowerconsumption", False)):
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output = "{}% ({})".format(
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capacity, self.__manager.consumption(widget.name)
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)
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else:
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output = "{}%".format(capacity)
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if (
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util.format.asbool(self.parameter("showremaining", True))
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and self.__manager.charge(widget.name) == "Discharging"
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):
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remaining = self.__manager.remaining()
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if remaining >= 0:
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output = "{} {}".format(
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output, util.format.duration(remaining, compact=True, unit=True)
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)
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if util.format.asbool(self.parameter("showdevice", False)):
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output = "{} ({})".format(output, widget.name)
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return output
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def state(self, widget):
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state = []
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capacity = widget.get("capacity")
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if capacity < 0:
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log.debug("battery state: {}".format(state))
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return ["critical", "unknown"]
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if capacity < int(self.parameter("critical", 10)):
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state.append("critical")
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elif capacity < int(self.parameter("warning", 20)):
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state.append("warning")
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if widget.get("ac"):
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state.append("AC")
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else:
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if widget.name == "all-batteries":
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charge = self.__manager.charge_any(self._batteries)
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else:
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charge = self.__manager.charge(widget.name)
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if charge == "Discharging":
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state.append(
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"discharging-{}".format(
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min([10, 25, 50, 80, 100], key=lambda i: abs(i - capacity))
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)
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)
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elif charge == "Unknown":
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state.append(
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"unknown-{}".format(
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min([10, 25, 50, 80, 100], key=lambda i: abs(i - capacity))
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)
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)
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else:
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if capacity > 95:
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state.append("charged")
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else:
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state.append("charging")
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return state
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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