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# statusicon.py -- GUI status icon source
# This file is part of Redshift.
# Redshift 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 3 of the License, or
# (at your option) any later version.
# Redshift 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 Redshift. If not, see <http://www.gnu.org/licenses/>.
# Copyright (c) 2013-2017 Jon Lund Steffensen <jonlst@gmail.com>
"""GUI status icon for Redshift.
The run method will try to start an appindicator for Redshift. If the
appindicator module isn't present it will fall back to a GTK status icon.
"""
import sys
import signal
import gettext
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, GLib
try:
gi.require_version('AyatanaAppIndicator3', '0.1')
from gi.repository import AyatanaAppIndicator3 as appindicator
except (ImportError, ValueError):
appindicator = None
from .controller import RedshiftController
from . import defs
from . import utils
_ = gettext.gettext
class RedshiftStatusIcon(object):
"""The status icon tracking the RedshiftController."""
def __init__(self, controller):
"""Creates a new instance of the status icon."""
self._controller = controller
if appindicator:
# Create indicator
self.indicator = appindicator.Indicator.new(
'redshift',
'redshift-status-on',
appindicator.IndicatorCategory.APPLICATION_STATUS)
self.indicator.set_status(appindicator.IndicatorStatus.ACTIVE)
else:
# Create status icon
self.status_icon = Gtk.StatusIcon()
self.status_icon.set_from_icon_name('redshift-status-on')
self.status_icon.set_tooltip_text('Redshift')
# Create popup menu
self.status_menu = Gtk.Menu()
# Add toggle action
self.toggle_item = Gtk.CheckMenuItem.new_with_label(_('Enabled'))
self.toggle_item.connect('activate', self.toggle_item_cb)
self.status_menu.append(self.toggle_item)
# Add suspend menu
suspend_menu_item = Gtk.MenuItem.new_with_label(_('Suspend for'))
suspend_menu = Gtk.Menu()
for minutes, label in [(30, _('30 minutes')),
(60, _('1 hour')),
(120, _('2 hours'))]:
suspend_item = Gtk.MenuItem.new_with_label(label)
suspend_item.connect('activate', self.suspend_cb, minutes)
suspend_menu.append(suspend_item)
suspend_menu_item.set_submenu(suspend_menu)
self.status_menu.append(suspend_menu_item)
# Add autostart option
if utils.supports_autostart():
autostart_item = Gtk.CheckMenuItem.new_with_label(_('Autostart'))
try:
autostart_item.set_active(utils.get_autostart())
except IOError as strerror:
print(strerror)
autostart_item.set_property('sensitive', False)
else:
autostart_item.connect('toggled', self.autostart_cb)
finally:
self.status_menu.append(autostart_item)
# Add info action
info_item = Gtk.MenuItem.new_with_label(_('Info'))
info_item.connect('activate', self.show_info_cb)
self.status_menu.append(info_item)
# Add quit action
quit_item = Gtk.ImageMenuItem.new_with_label(_('Quit'))
quit_item.connect('activate', self.destroy_cb)
self.status_menu.append(quit_item)
# Create info dialog
self.info_dialog = Gtk.Window(title=_('Info'))
self.info_dialog.set_resizable(False)
self.info_dialog.set_property('border-width', 6)
self.info_dialog.connect('delete-event', self.close_info_dialog_cb)
content_area = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
self.info_dialog.add(content_area)
content_area.show()
self.status_label = Gtk.Label()
self.status_label.set_alignment(0.0, 0.5)
self.status_label.set_padding(6, 6)
content_area.pack_start(self.status_label, True, True, 0)
self.status_label.show()
self.location_label = Gtk.Label()
self.location_label.set_alignment(0.0, 0.5)
self.location_label.set_padding(6, 6)
content_area.pack_start(self.location_label, True, True, 0)
self.location_label.show()
self.temperature_label = Gtk.Label()
self.temperature_label.set_alignment(0.0, 0.5)
self.temperature_label.set_padding(6, 6)
content_area.pack_start(self.temperature_label, True, True, 0)
self.temperature_label.show()
self.period_label = Gtk.Label()
self.period_label.set_alignment(0.0, 0.5)
self.period_label.set_padding(6, 6)
content_area.pack_start(self.period_label, True, True, 0)
self.period_label.show()
self.close_button = Gtk.Button(label=_('Close'))
content_area.pack_start(self.close_button, True, True, 0)
self.close_button.connect('clicked', self.close_info_dialog_cb)
self.close_button.show()
# Setup signals to property changes
self._controller.connect('inhibit-changed', self.inhibit_change_cb)
self._controller.connect('period-changed', self.period_change_cb)
self._controller.connect(
'temperature-changed', self.temperature_change_cb)
self._controller.connect('location-changed', self.location_change_cb)
self._controller.connect('error-occured', self.error_occured_cb)
self._controller.connect('stopped', self.controller_stopped_cb)
# Set info box text
self.change_inhibited(self._controller.inhibited)
self.change_period(self._controller.period)
self.change_temperature(self._controller.temperature)
self.change_location(self._controller.location)
if appindicator:
self.status_menu.show_all()
# Set the menu
self.indicator.set_menu(self.status_menu)
else:
# Connect signals for status icon and show
self.status_icon.connect('activate', self.toggle_cb)
self.status_icon.connect('popup-menu', self.popup_menu_cb)
self.status_icon.set_visible(True)
# Initialize suspend timer
self.suspend_timer = None
def remove_suspend_timer(self):
"""Disable any previously set suspend timer."""
if self.suspend_timer is not None:
GLib.source_remove(self.suspend_timer)
self.suspend_timer = None
def suspend_cb(self, item, minutes):
"""Callback that handles activation of a suspend timer.
The minutes parameter is the number of minutes to suspend. Even if
redshift is not disabled when called, it will still set a suspend timer
and reactive redshift when the timer is up.
"""
# Inhibit
self._controller.set_inhibit(True)
# If "suspend" is clicked while redshift is disabled, we reenable
# it after the last selected timespan is over.
self.remove_suspend_timer()
# If redshift was already disabled we reenable it nonetheless.
self.suspend_timer = GLib.timeout_add_seconds(
minutes * 60, self.reenable_cb)
def reenable_cb(self):
"""Callback to reenable redshift when a suspend timer expires."""
self._controller.set_inhibit(False)
def popup_menu_cb(self, widget, button, time, data=None):
"""Callback when the popup menu on the status icon has to open."""
self.status_menu.show_all()
self.status_menu.popup(None, None, Gtk.StatusIcon.position_menu,
self.status_icon, button, time)
def toggle_cb(self, widget, data=None):
"""Callback when a request to toggle redshift was made."""
self.remove_suspend_timer()
self._controller.set_inhibit(not self._controller.inhibited)
def toggle_item_cb(self, widget, data=None):
"""Callback when a request to toggle redshift was made.
This ensures that the state of redshift is synchronised with
the toggle state of the widget (e.g. Gtk.CheckMenuItem).
"""
active = not self._controller.inhibited
if active != widget.get_active():
self.remove_suspend_timer()
self._controller.set_inhibit(not self._controller.inhibited)
# Info dialog callbacks
def show_info_cb(self, widget, data=None):
"""Callback when the info dialog should be presented."""
self.info_dialog.show()
def response_info_cb(self, widget, data=None):
"""Callback when a button in the info dialog was activated."""
self.info_dialog.hide()
def close_info_dialog_cb(self, widget, data=None):
"""Callback when the info dialog is closed."""
self.info_dialog.hide()
return True
def update_status_icon(self):
"""Update the status icon according to the internally recorded state.
This should be called whenever the internally recorded state
might have changed.
"""
if appindicator:
if not self._controller.inhibited:
self.indicator.set_icon('redshift-status-on')
else:
self.indicator.set_icon('redshift-status-off')
else:
if not self._controller.inhibited:
self.status_icon.set_from_icon_name('redshift-status-on')
else:
self.status_icon.set_from_icon_name('redshift-status-off')
# State update functions
def inhibit_change_cb(self, controller, inhibit):
"""Callback when controller changes inhibition status."""
self.change_inhibited(inhibit)
def period_change_cb(self, controller, period):
"""Callback when controller changes period."""
self.change_period(period)
def temperature_change_cb(self, controller, temperature):
"""Callback when controller changes temperature."""
self.change_temperature(temperature)
def location_change_cb(self, controller, lat, lon):
"""Callback when controlled changes location."""
self.change_location((lat, lon))
def error_occured_cb(self, controller, error):
"""Callback when an error occurs in the controller."""
error_dialog = Gtk.MessageDialog(
None, Gtk.DialogFlags.MODAL, Gtk.MessageType.ERROR,
Gtk.ButtonsType.CLOSE, '')
error_dialog.set_markup(
'<b>Failed to run Redshift</b>\n<i>' + error + '</i>')
error_dialog.run()
# Quit when the model dialog is closed
sys.exit(-1)
def controller_stopped_cb(self, controller):
"""Callback when controlled is stopped successfully."""
Gtk.main_quit()
# Update interface
def change_inhibited(self, inhibited):
"""Change interface to new inhibition status."""
self.update_status_icon()
self.toggle_item.set_active(not inhibited)
self.status_label.set_markup(
_('<b>Status:</b> {}').format(
_('Disabled') if inhibited else _('Enabled')))
def change_temperature(self, temperature):
"""Change interface to new temperature."""
self.temperature_label.set_markup(
'<b>{}:</b> {}K'.format(_('Color temperature'), temperature))
self.update_tooltip_text()
def change_period(self, period):
"""Change interface to new period."""
self.period_label.set_markup(
'<b>{}:</b> {}'.format(_('Period'), period))
self.update_tooltip_text()
def change_location(self, location):
"""Change interface to new location."""
self.location_label.set_markup(
'<b>{}:</b> {}, {}'.format(_('Location'), *location))
def update_tooltip_text(self):
"""Update text of tooltip status icon."""
if not appindicator:
self.status_icon.set_tooltip_text('{}: {}K, {}: {}'.format(
_('Color temperature'), self._controller.temperature,
_('Period'), self._controller.period))
def autostart_cb(self, widget, data=None):
"""Callback when a request to toggle autostart is made."""
utils.set_autostart(widget.get_active())
def destroy_cb(self, widget, data=None):
"""Callback when a request to quit the application is made."""
if not appindicator:
self.status_icon.set_visible(False)
self.info_dialog.destroy()
self._controller.terminate_child()
return False
def run():
utils.setproctitle('redshift-gtk')
# Internationalisation
gettext.bindtextdomain('redshift', defs.LOCALEDIR)
gettext.textdomain('redshift')
for help_arg in ('-h', '--help'):
if help_arg in sys.argv:
print(_('Please run `redshift -h` for help output.'))
sys.exit(-1)
# Create redshift child process controller
c = RedshiftController(sys.argv[1:])
def terminate_child(data=None):
c.terminate_child()
return False
# Install signal handlers
GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGTERM,
terminate_child, None)
GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT,
terminate_child, None)
try:
# Create status icon
RedshiftStatusIcon(c)
# Run main loop
Gtk.main()
except:
c.kill_child()
raise
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