sugar-toolkit-gtk3/shell/hardware/hardwaremanager.py

# Copyright (C) 2006, 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 logging

import dbus

from hardware.nmclient import NMClient
from _sugar import AudioManager

_HARDWARE_MANAGER_INTERFACE = 'org.laptop.HardwareManager'
_HARDWARE_MANAGER_SERVICE = 'org.laptop.HardwareManager'
_HARDWARE_MANAGER_OBJECT_PATH = '/org/laptop/HardwareManager'

COLOR_MODE = 0
B_AND_W_MODE = 1

class HardwareManager(object):
    def __init__(self):
        bus = dbus.SystemBus()
        proxy = bus.get_object(_HARDWARE_MANAGER_SERVICE,
                               _HARDWARE_MANAGER_OBJECT_PATH)
        self._service = dbus.Interface(proxy, _HARDWARE_MANAGER_INTERFACE)

    def set_display_mode(self, mode):
        self._service.set_display_mode(mode)

    def set_display_brightness(self, level):
        self._service.set_display_brightness(level)

    def toggle_keyboard_brightness(self):
        if self._service.get_keyboard_brightness():
            self._service.set_keyboard_brightness(False)
        else:
            self._service.set_keyboard_brightness(True)            

def get_hardware_manager():
    return _hardware_manager

def get_audio_manager():
    return _audio_manager

def get_network_manager():
    return _network_manager

_audio_manager = AudioManager()

try:
    _hardware_manager = HardwareManager()
except dbus.DBusException, e:
    _hardware_manager = None
    logging.info('Hardware manager service not found.')

try:
    _network_manager = NMClient()
except dbus.DBusException, e:
    _network_manager = None
    logging.info('Network manager service not found.')