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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# blueshift-tray – Systray wrapper for Blueshift
# Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
import sys
import time
import signal
import subprocess
import pygtk
import gettext
pygtk.require("2.0")
import gtk, glib
LOCALEDIR = '/usr/share/locale'
gettext.bindtextdomain('blueshift', LOCALEDIR)
gettext.textdomain('blueshift')
def process_quit(signum, frame):
'''
Invoked when a child process exits or continues
@param signum:int The signal (SIGCHLD)
@param frame:=None Will probably be `None`
'''
global running, frozen_sig
if frozen_sig:
frozen_sig = False
return
process.wait()
if running:
running = False
icon.set_visible(False)
gtk.main_quit()
time.sleep(0.1)
sys.exit(0)
def term(count = 1, kill = False):
'''
Terminate the blueshift if alive
@param count:int Number of times to send SIGTERM
@param kill:bool Whether to also send SIGKILL and the exit
'''
if process is not None:
process.send_signal(signal.SIGTERM)
if count > 1:
for i in range(count - 1):
if process.poll() is None:
time.sleep(0.1)
process.send_signal(signal.SIGTERM)
if kill:
time.sleep(0.1)
process.send_signal(signal.SIGKILL)
sys.exit(0)
def create_menu(menu, image, title, function):
'''
Create a menu item
@param menu:gtk.Menu The menu to place the item inside
@param image:str? The icon on the menu item
@param title:str? The text on the menu item
@param function:(gtk.Widget, (=None))?→void The function invoked when the item is pressed
@return :gtk.MenuItem|gtk.ImageMenuItem The created menu
'''
if image is None:
menu_item = gtk.MenuItem(gettext.gettext(title))
else:
menu_item = gtk.ImageMenuItem(image)
if title is not None:
menu_item.set_label(gettext.gettext(title))
if function is not None:
menu_item.connect('activate', function)
menu.append(menu_item)
return menu_item
def f_popup(widget, button, time, data = None):
'''
Invoked to open a popup menu
'''
menu.show_all()
menu.popup(None, None, gtk.status_icon_position_menu, button, time, icon)
def f_toggle(widget, data = None):
global paused, last_time
now = time.time()
if now < last_time + 0.2:
return
last_time = now
paused = not paused
process.send_signal(signal.SIGUSR2)
icon.set_from_icon_name('blueshift-off' if paused else 'blueshift-on')
toggle_menu.set_label(gettext.gettext('_Enable' if paused else '_Disable'))
def f_suspend(widget, data = None):
global frozen, frozen_sig, last_time
now = time.time()
if now < last_time + 0.2:
return
last_time = now
frozen = not frozen
frozen_sig = True
process.send_signal(signal.SIGTSTP if frozen else signal.SIGCONT)
suspend_menu.set_label(gettext.gettext('_Thaw' if frozen else '_Freeze'))
def f_reload(widget, data = None):
process.send_signal(signal.SIGUSR1)
def f_quit(widget, data = None):
global running
if running:
running = False
icon.set_visible(False)
gtk.main_quit()
term(1)
process.wait()
def f_panic_quit(widget, data = None):
global running
if running:
running = False
icon.set_visible(False)
gtk.main_quit()
term(2, True)
frozen_sig = False
running = True
paused = False
frozen = False
signal.signal(signal.SIGCHLD, process_quit)
process = subprocess.Popen(['blueshift'] + sys.argv[1:], stdout = sys.stdout, stderr = sys.stderr)
last_time = time.time() - 1
signal_relay = lambda signo, _frame : os.kill(process.pid, signal)
for signo in (signal.SIGTERM, signal.SIGINT, signal.SIGHUP, signal.SIGUSR1, signal.SIGUSR2):
signal.signal(signo, signal_relay)
try:
icon = gtk.StatusIcon()
icon.set_from_icon_name('blueshift-on')
icon.set_tooltip('Blueshift')
menu = gtk.Menu()
toggle_menu = create_menu(menu, None, '_Disable', f_toggle)
suspend_menu = create_menu(menu, None, '_Freeze', f_suspend)
reload_menu = create_menu(menu, gtk.STOCK_REFRESH, '_Reload', f_reload)
create_menu(menu, None, None, None)
quit_menu = create_menu(menu, gtk.STOCK_QUIT, '_Quit', f_quit)
panic_quit_menu = create_menu(menu, gtk.STOCK_QUIT, '_Panic Quit', f_panic_quit)
icon.connect('activate', f_toggle)
icon.connect('popup-menu', f_popup)
icon.set_visible(True)
gtk.main()
except KeyboardInterrupt:
running = False
icon.set_visible(False)
term()
if paused is not None:
time.sleep(0.1)
term()
finally:
try:
process.wait()
except KeyboardInterrupt:
term()
if process.poll() is None:
time.sleep(0.1)
if process.poll() is None:
process.send_signal(signal.SIGKILL)
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