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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'
class Device(device.Device):
__gproperties__ = {
'level' : (int, None, None, 0, 100, 0,
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)
def do_get_property(self, pspec):
if pspec.name == 'level':
return self._level
def get_type(self):
return 'battery'
def _battery_changed(self, num_changes, changes_list):
for change in changes_list:
if change[0] == 'battery.charge_level.percentage':
self._level = self._battery.GetProperty(_LEVEL_PROP)
self.notify('level')
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