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# Copyright (C) 2006-2007, Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gobject
import dbus
from model.devices import device
_LEVEL_PROP = 'battery.charge_level.percentage'
_CHARGING_PROP = 'battery.rechargeable.is_charging'
_DISCHARGING_PROP = 'battery.rechargeable.is_discharging'
class Device(device.Device):
__gproperties__ = {
'level' : (int, None, None, 0, 100, 0,
gobject.PARAM_READABLE),
'charging' : (bool, None, None, False, gobject.PARAM_READABLE),
'discharging' : (bool, None, None, False, gobject.PARAM_READABLE)
}
def __init__(self, udi):
device.Device.__init__(self, udi)
bus = dbus.Bus(dbus.Bus.TYPE_SYSTEM)
proxy = bus.get_object('org.freedesktop.Hal', udi)
self._battery = dbus.Interface(proxy, 'org.freedesktop.Hal.Device')
bus.add_signal_receiver(self._battery_changed,
'PropertyModified',
'org.freedesktop.Hal.Device',
'org.freedesktop.Hal',
udi)
self._level = self._battery.GetProperty(_LEVEL_PROP)
self._charging = self._battery.GetProperty(_CHARGING_PROP)
self._discharging = self._battery.GetProperty(_DISCHARGING_PROP)
def do_get_property(self, pspec):
if pspec.name == 'level':
return self._level
if pspec.name == 'charging':
return self._charging
if pspec.name == 'discharging':
return self._discharging
def get_type(self):
return 'battery'
def _battery_changed(self, num_changes, changes_list):
for change in changes_list:
if change[0] == _LEVEL_PROP:
self._level = self._battery.GetProperty(_LEVEL_PROP)
self.notify('level')
elif change[0] == _CHARGING_PROP:
self._charging = self._battery.GetProperty(_CHARGING_PROP)
self.notify('charging')
elif change[0] == _DISCHARGING_PROP:
self._discharging = self._battery.GetProperty(_DISCHARGING_PROP)
self.notify('discharging')
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