Source code for libqtile.widget.wlan

# -*- coding: utf-8 -*-
# Copyright (c) 2012 Sebastian Bechtel
# Copyright (c) 2013 Tao Sauvage
# Copyright (c) 2014 Sebastian Kricner
# Copyright (c) 2014 Sean Vig
# Copyright (c) 2014 Tycho Andersen
# Copyright (c) 2014 Craig Barnes
# Copyright (c) 2015 farebord
# Copyright (c) 2015 Jörg Thalheim (Mic92)
# Copyright (c) 2016 Juhani Imberg
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

from . import base
from libqtile.log_utils import logger
try:
    from pythonwifi.iwlibs import Wireless, Iwstats

    def get_status(interface):
        interface = Wireless(interface)
        try:
            stats = Iwstats(interface)
        except IOError:
            return (None, None)
        quality = stats.qual.quality
        essid = interface.getEssid()
        return (essid, quality)

except ImportError:
    import iwlib

    def get_status(interface):
        interface = iwlib.get_iwconfig(interface)
        if 'stats' not in interface:
            return (None, None)
        quality = interface['stats']['quality']
        essid = bytes(interface['ESSID']).decode()
        return (essid, quality)


[docs]class Wlan(base.InLoopPollText): """Displays Wifi ssid and quality""" orientations = base.ORIENTATION_HORIZONTAL defaults = [ ('interface', 'wlan0', 'The interface to monitor'), ('update_interval', 1, 'The update interval.'), ( 'disconnected_message', 'Disconnected', 'String to show when the wlan is diconnected.' ), ( 'format', '{essid} {quality}/70', 'Display format. For percents you can use "{essid} {percent:2.0%}"' ) ] def __init__(self, **config): base.InLoopPollText.__init__(self, **config) self.add_defaults(Wlan.defaults) def poll(self): try: essid, quality = get_status(self.interface) disconnected = essid is None if disconnected: return self.disconnected_message return self.format.format( essid=essid, quality=quality, percent=(quality / 70) ) except EnvironmentError: logger.error( '%s: Probably your wlan device is switched off or ' ' otherwise not present in your system.', self.__class__.__name__)