A set of tools for configuring the Logitech G19 keyboard.
Based in:
https://github.com/Gnome15/gnome15
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79 lines
3.0 KiB
79 lines
3.0 KiB
# Gnome15 - Suite of tools for the Logitech G series keyboards and headsets
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# Copyright (C) 2012 Brett Smith <tanktarta@blueyonder.co.uk>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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'''
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Classes and utilities for monitoring the current state of the network, allowing
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plugins that declare "needs_network" to be enabled or disabled depending on this
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state.
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This is done using the NetworkManager DBUS interface, although the number of
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states available is reduced to connected/disconnected
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'''
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import dbus
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# Logging
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import logging
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logger = logging.getLogger(__name__)
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_system_bus = dbus.SystemBus()
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NM_BUS_NAME = 'org.freedesktop.NetworkManager'
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NM_OBJECT_PATH = '/org/freedesktop/NetworkManager'
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NM_INTERFACE_NAME = 'org.freedesktop.NetworkManager'
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NM_STATE_INDEX = { 0: 'Unknown',
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10: 'Asleep',
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20: 'Disconnected',
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30: 'Disconnecting',
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40: 'Connecting',
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50: 'Connected (Local)',
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60: 'Connected (Site)',
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70: 'Connected (Global)' }
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class NetworkManager():
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def __init__(self, screen):
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self._screen = self
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self.listeners = []
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self._state = -1
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try:
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_manager = _system_bus.get_object(NM_BUS_NAME, NM_OBJECT_PATH)
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self._interface = dbus.Interface(_manager, NM_INTERFACE_NAME)
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self._set_state(self._interface.state())
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self._handle = self._interface.connect_to_signal('StateChanged', self._set_state)
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except dbus.DBusException as e:
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logger.warning("NetworkManager DBUS interface could not be contacted. All plugins will assume the network is available, and may behave unexpectedly.")
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logger.debug("NetworkManager connection attempt below :", exc_info = e)
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# Assume connected
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self._state = 70
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def _set_state(self, state):
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if state in NM_STATE_INDEX:
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logger.info("New network state is %s", NM_STATE_INDEX[state])
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s = state
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else:
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logger.info("New network state is unknown")
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s = 0
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if s != self._state and s in [ 0, 20, 60, 70 ]:
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self._state = s
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for l in self.listeners:
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l(self.is_network_available())
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def is_network_available(self):
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return self._state in [ 60, 70 ]
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def is_internet_available(self):
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return self._state == 70
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