Source code for libqtile.widget.khal_calendar

# -*- coding: utf-8 -*-
###################################################################
# This widget will display the next appointment on your calendar in
# the qtile status bar. Appointments within the "reminder" time will be
# highlighted. Authentication credentials are stored on disk.
#
# This widget uses the khal command line calendar utility available at
# https://github.com/geier/khal
#
# This widget also requires the dateutil.parser module.
# If you get a strange "AttributeError: 'module' object has no attribute
# GoogleCalendar" error, you are probably missing a module. Check
# carefully.
#
# Thanks to the creator of the YahooWeather widget (dmpayton). This code
# borrows liberally from that one.
#
# Copyright (c) 2016 by David R. Andersen <k0rx@RXcomm.net>
# New khal output format adjustment, 2016 Christoph Lassner
# Licensed under the Gnu Public License
#
# 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
import datetime
import dateutil.parser
import subprocess
import string

from libqtile import utils


[docs]class KhalCalendar(base.ThreadedPollText): """Khal calendar widget This widget will display the next appointment on your Khal calendar in the qtile status bar. Appointments within the "reminder" time will be highlighted. """ orientations = base.ORIENTATION_HORIZONTAL defaults = [ ( 'reminder_color', 'FF0000', 'color of calendar entries during reminder time' ), ('foreground', 'FFFF33', 'default foreground color'), ('remindertime', 10, 'reminder time in minutes'), ('lookahead', 7, 'days to look ahead in the calendar'), ] def __init__(self, **config): base.ThreadedPollText.__init__(self, **config) self.add_defaults(KhalCalendar.defaults) self.text = 'Calendar not initialized.' self.default_foreground = self.foreground def poll(self): # get today and tomorrow now = datetime.datetime.now() tomorrow = now + datetime.timedelta(days=1) # get reminder time in datetime format remtime = datetime.timedelta(minutes=self.remindertime) # parse khal output for the next seven days # and get the next event args = ['khal', 'agenda', '--days', str(self.lookahead)] cal = subprocess.Popen(args, stdout=subprocess.PIPE) output = cal.communicate()[0].decode('utf-8') output = output.split('\n') if len(output) < 2: return 'No appointments scheduled' date = 'unknown' endtime = None for i in range(len(output)): # pylint: disable=consider-using-enumerate if output[i].strip() == '': continue try: starttime = dateutil.parser.parse(date + ' ' + output[i][:5], ignoretz=True) endtime = dateutil.parser.parse(date + ' ' + output[i][6:11], ignoretz=True) except ValueError: try: if output[i] == 'Today:': date = str(now.month) + '/' + str(now.day) + '/' + \ str(now.year) elif output[i] == 'Tomorrow:': date = str(tomorrow.month) + '/' + str(tomorrow.day) + \ '/' + str(tomorrow.year) else: dateutil.parser.parse(output[i]) date = output[i] continue except ValueError: pass # no date. if endtime is not None and endtime > now: data = date.replace(':', '') + ' ' + output[i] break else: data = 'No appointments in next ' + \ str(self.lookahead) + ' days' # get rid of any garbage in appointment added by khal data = ''.join(filter(lambda x: x in string.printable, data)) # colorize the event if it is within reminder time if (starttime - remtime <= now) and (endtime > now): self.foreground = utils.hex(self.reminder_color) else: self.foreground = self.default_foreground return data