bumblebee-status/bumblebee/modules/battery.py
Tobias Witek 6a0578d2c3 [modules/battery] Incorporate @yvesh's estimated time remaining
Move changes proposed by @yvesh to show the remaining battery time into
the battery module.

see #146
2017-07-23 18:45:07 +02:00

127 lines
4.6 KiB
Python

# pylint: disable=C0111,R0903
"""Displays battery status, remaining percentage and charging information.
Parameters:
* battery.device : Comma-separated list of battery devices to read information from (defaults to auto for auto-detection)
* battery.warning : Warning threshold in % of remaining charge (defaults to 20)
* battery.critical : Critical threshold in % of remaining charge (defaults to 10)
* battery.showdevice : If set to "true", add the device name to the widget (defaults to False)
"""
import os
import glob
import bumblebee.input
import bumblebee.output
import bumblebee.engine
import bumblebee.util
try:
import power
except ImportError:
pass
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
widgets = []
super(Module, self).__init__(engine, config, widgets)
self._batteries = self.parameter("device", "auto").split(",")
if self._batteries[0] == "auto":
self._batteries = glob.glob("/sys/class/power_supply/BAT*")
else:
self._batteries = [ "/sys/class/power_supply/{}".format(b) for b in self._batteries ]
if len(self._batteries) == 0:
self._batteries = [ "/sys/class/power_supply/BAT0" ]
self._estimate = "n/a"
self.update(widgets)
engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
cmd="gnome-power-statistics")
def update(self, widgets):
new_widgets = []
for path in self._batteries:
widget = self.widget(path)
if not widget:
widget = bumblebee.output.Widget(full_text=self.capacity, name=path)
new_widgets.append(widget)
self.capacity(widget)
while len(widgets) > 0: del widgets[0]
for widget in new_widgets:
widgets.append(widget)
self._widgets = widgets
if bumblebee.util.asbool(self.parameter("showremaining", False)):
self._widgets.append(bumblebee.output.Widget(full_text=self.remaining))
self._widgets[-1].set("type", "remaining")
try:
type = power.PowerManagement().get_providing_power_source_type()
estimate = power.PowerManagement().get_time_remaining_estimate()
if type == power.POWER_TYPE_AC and estimate == -2.0:
self._estimate = "Unlimited"
elif estimate == -1.0:
self._estimate = "Unknown"
else:
self._estimate = str(round(estimate / 60, 1)) + ' h'
except Exception as e:
self._estimate = "n/a"
def remaining(self, widget):
return str(self._estimate)
def capacity(self, widget):
widget.set("capacity", -1)
widget.set("ac", False)
if not os.path.exists(widget.name):
widget.set("capacity", 100)
widget.set("ac", True)
return "ac"
capacity = 100
try:
with open("{}/capacity".format(widget.name)) as f:
capacity = int(f.read())
except IOError:
return "n/a"
capacity = capacity if capacity < 100 else 100
widget.set("capacity", capacity)
if bumblebee.util.asbool(self.parameter("showdevice", False)):
widget.set("theme.minwidth", "100% ({})".format(os.path.basename(widget.name)))
return "{}% ({})".format(capacity, os.path.basename(widget.name))
widget.set("theme.minwidth", "100%")
return "{}%".format(capacity)
def state(self, widget):
state = []
if widget.get("type", "battery") == "remaining":
if self._estimate == "Unlimited":
return "unlimited"
return "estimate"
capacity = widget.get("capacity")
if capacity < 0:
return ["critical", "unknown"]
if capacity < int(self.parameter("critical", 10)):
state.append("critical")
elif capacity < int(self.parameter("warning", 20)):
state.append("warning")
if widget.get("ac"):
state.append("AC")
else:
charge = ""
with open("{}/status".format(widget.name)) as f:
charge = f.read().strip()
if charge == "Discharging":
state.append("discharging-{}".format(min([10, 25, 50, 80, 100] , key=lambda i:abs(i-capacity))))
else:
if capacity > 95:
state.append("charged")
else:
state.append("charging")
return state
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