#!/usr/bin/env python3 # File: logout-manager-gtk.py # License: CC-BY-SA 4.0 # Author: bgstack15 # Startdate: 2019-06-01 # Title: GTK3 based logout manager # Purpose: Primarily for fluxbox, this tool provides a graphical menu for various session control commands like shutdown, logout, and reboot # History: # Usage: # This is a bit for reference, but also to provide myself a little shutdown options menu, like xfce4, because fluxbox doesn't really provide one. # Reference: # https://www.linuxquestions.org/questions/slackware-14/how-do-i-run-menu-and-logout-from-the-command-line-in-fluxbox-864919/ # /mnt/public/work/python/hotplug2/ # icon handling https://python-gtk-3-tutorial.readthedocs.io/en/latest/iconview.html # accelerator keys https://askubuntu.com/questions/655452/python-gtk3-keyboard-accelerators # gtk3 widget signals https://developer.gnome.org/gtk3/unstable/GtkWidget.html#GtkWidget-button-press-event # /usr/share/wicd/gtk/gui.py netentry.py wicd.ui # combined with next ref: scale down valid icon https://stackoverflow.com/questions/42800482/how-to-set-size-of-a-gtk-image-in-python # https://stackoverflow.com/questions/6090241/how-can-i-get-the-full-file-path-of-an-icon-name # use custom icon theme https://lazka.github.io/pgi-docs/Gtk-3.0/classes/IconTheme.html#Gtk.IconTheme.set_custom_theme # https://stackoverflow.com/questions/4090804/how-can-i-pass-variables-between-two-classes-windows-in-pygtk # Improve: # actually execute the commands # only show debug info when DEBUG=1 or similar. # support global conf file, and user conf file # far future: provide graphical way to change commands run # Dependencies: # Devuan: python3-dotenv # Documentation: import gi, os, platform, sys gi.require_version("Gtk", "3.0") from gi.repository import Gtk from gi.repository import Gdk from gi.repository.GdkPixbuf import Pixbuf from pathlib import Path from dotenv import load_dotenv # all this to load the libpath try: defaultdir="/etc/sysconfig" thisplatform = platform.platform().lower() if 'debian' in thisplatform or 'devuan' in thisplatform: defaultdir="/etc/default" # load_dotenv keeps existing environment variables as higher precedent load_dotenv(os.path.join(defaultdir,"logout-manager")) except: pass if 'LOGOUT_MANAGER_LIBPATH' in os.environ: for i in os.environ['LOGOUT_MANAGER_LIBPATH'].split(":"): sys.path.append(i) import lmlib # graphical classes and functions def get_scaled_icon(icon_name, size=24, fallback_icon_name = "", icon_theme = "default"): # return a Gtk.Image.new_from_pixbuf # ripped from https://stackoverflow.com/questions/42800482/how-to-set-size-of-a-gtk-image-in-python and combined with https://stackoverflow.com/questions/6090241/how-can-i-get-the-full-file-path-of-an-icon-name # further ref for lookup_icon function: https://lazka.github.io/pgi-docs/Gtk-3.0/flags.html#Gtk.IconLookupFlags # if a file exists by the specific name, use it. if Path(icon_name).is_file(): iconfilename = icon_name else: if icon_theme != "default": this_theme = Gtk.IconTheme.new() this_theme.set_custom_theme(icon_theme) else: this_theme = Gtk.IconTheme.get_default() try: icon_info = this_theme.lookup_icon(icon_name, size, 0) iconfilename = icon_info.get_filename() except: try: icon_info = this_theme.lookup_icon(fallback_icon_name, size, 0) iconfilename = icon_info.get_filename() except: # no icon in the current theme. Try a hard-coded fallback: try: # if debuglev 3 print("Error: could not find default icon for", icon_name+", so using fallback.") this_theme = Gtk.IconTheme.new() this_theme.set_custom_theme("Numix-Circle") icon_info = this_theme.lookup_icon(icon_name, size, 0) iconfilename = icon_info.get_filename() except: print("Error: Could not find any icon for", icon_name) return None #print(iconfilename) return Gtk.Image.new_from_pixbuf(Pixbuf.new_from_file_at_scale( filename=iconfilename, width=size, height=size, preserve_aspect_ratio=True)) class MainWindow(Gtk.Window): def __init__(self, config, actions): self.actions = actions self.config = config Gtk.Window.__init__(self, title="Log out options") # for window icon liststore = Gtk.ListStore(Pixbuf, str) iconview = Gtk.IconView.new() iconview.set_model(liststore) iconview.set_pixbuf_column(0) iconview.set_text_column(1) pixbuf24 = Gtk.IconTheme.get_default().load_icon(config.application_icon, 24, 0) pixbuf32 = Gtk.IconTheme.get_default().load_icon(config.application_icon, 32, 0) pixbuf48 = Gtk.IconTheme.get_default().load_icon(config.application_icon, 48, 0) pixbuf64 = Gtk.IconTheme.get_default().load_icon(config.application_icon, 64, 0) pixbuf96 = Gtk.IconTheme.get_default().load_icon(config.application_icon, 96, 0) self.set_icon_list([pixbuf24, pixbuf32, pixbuf48, pixbuf64, pixbuf96]); # accel is for when you are not using the "set_use_underline" function. #accel = Gtk.AccelGroup() #accel.connect(Gdk.keyval_from_name('D'), Gdk.ModifierType.MOD1_MASK, 0, self.on_button2_accel) #self.add_accel_group(accel) # buttons self.grid = Gtk.Grid() self.add(self.grid) self.button0 = Gtk.Button(label="Loc_k") self.button0.connect("button-press-event", self.on_button0_press_event) self.button0.connect("activate", self.on_button0_press_event) # activate covers ALT+L action and spacebar when selected self.buttonicon0 = get_scaled_icon(config.get_lock_icon(), config.get_icon_size(), config.get_lock_fallback_icon(), config.get_icon_theme()) self.button0.set_image(self.buttonicon0) self.button0.set_tooltip_text("Hide session and require authentication to return to it") self.button0.set_always_show_image(True) self.button0.set_use_underline(True) self.grid.add(self.button0) self.button1 = Gtk.Button(label="_Logout") self.button1.connect("button-press-event", self.on_button1_press_event) self.button1.connect("activate", self.on_button1_press_event) # activate covers ALT+L action and spacebar when selected self.buttonicon1 = get_scaled_icon(config.get_logout_icon(), config.get_icon_size(), config.get_logout_fallback_icon(), config.get_icon_theme()) self.button1.set_image(self.buttonicon1) self.button1.set_tooltip_text("Close the current user session") self.button1.set_always_show_image(True) self.button1.set_use_underline(True) self.grid.add(self.button1) self.buttonHibernate = Gtk.Button(label="_Hibernate") self.buttonHibernate.connect("button-press-event", self.on_buttonHibernate_press_event) self.buttonHibernate.connect("activate", self.on_buttonHibernate_press_event) # activate covers ALT+L action and spacebar when selected #self.buttoniconHibernate = Gtk.Image() #self.buttoniconHibernate.set_from_icon_name("system-hibernate", 24) self.buttoniconHibernate = get_scaled_icon(config.get_hibernate_icon(), config.get_icon_size(), config.get_hibernate_fallback_icon(), config.get_icon_theme()) self.buttonHibernate.set_image(self.buttoniconHibernate) self.buttonHibernate.set_tooltip_text("Save state to disk and power off") self.buttonHibernate.set_always_show_image(True) self.buttonHibernate.set_use_underline(True) self.buttonHibernate.set_sensitive(True if config.get_can_hibernate() else False) self.grid.add(self.buttonHibernate) self.button2 = Gtk.Button(label="_Shutdown") self.button2.connect("button-press-event", self.on_button2_press_event) self.button2.connect("activate", self.on_button2_accel) # unnecessary because the "activate" suffices above. #self.button2.connect("mnemonic-activate", self.on_button2_accel) self.buttonicon2 = Gtk.Image() self.buttonicon2 = get_scaled_icon(config.get_shutdown_icon(), config.get_icon_size(), config.get_shutdown_fallback_icon(), config.get_icon_theme()) self.button2.set_image(self.buttonicon2) self.button2.set_tooltip_text("Power off the computer") self.button2.set_always_show_image(True) self.button2.set_use_underline(True) self.grid.add(self.button2) self.button3 = Gtk.Button(label="_Reboot") self.button3.connect("button-press-event", self.on_button3_press_event) self.button3.connect("activate", self.on_button3_press_event) self.buttonicon3 = Gtk.Image() self.buttonicon3 = get_scaled_icon(config.get_reboot_icon(), config.get_icon_size(), config.get_reboot_fallback_icon(), config.get_icon_theme()) self.button3.set_image(self.buttonicon3) self.button3.set_tooltip_text("Reboot the computer back to the login screen") self.button3.set_always_show_image(True) self.button3.set_use_underline(True) self.grid.add(self.button3) self.button4 = Gtk.Button(label="_Cancel") self.button4.connect("button-press-event", self.on_button4_press_event) self.button4.connect("activate", self.on_button4_press_event) self.button4.set_tooltip_text("Do nothing; just close this window") self.button4.set_use_underline(True) self.grid.attach(self.button4, 0, 1, 8, 1) # hibernate button def on_buttonHibernate_press_event(self, *args): self.do_hibernate(self.buttonHibernate) # lock button def on_button0_press_event(self, *args): self.do_lock(self.button0) # logout button def on_button1_press_event(self, *args): self.do_logout(self.button1) # shutdown button def on_button2_press_event(self, widget, event): # check if left or right click if event.type == Gdk.EventType.BUTTON_PRESS: if event.button == 1: self.do_shutdown(widget) # eventbutton == 3 is the right-click, and its reference is my hello3.py #elif event.button == 3: # self.on_button1_right_clicked(widget) # global accelerator key, when not using the set_use_underline function ## shutdown button from accelerator key #def on_button2_accel(self, *args): # self.do_shutdown(self.button2) # accelerator key from set_use_underline function # shutdown button from accelerator key def on_button2_accel(self, *args): self.do_shutdown(self.button2) # reboot button def on_button3_press_event(self, *args): self.do_reboot(self.button3) # cancel button def on_button4_press_event(self, *args): self.cancel(self.button4) def do_shutdown(self, *args): #print(dir(self.props)) self.actions.shutdown(self.config) def do_hibernate(self, widget): self.actions.hibernate(self.config) def do_lock(self, widget): self.actions.lock(self.config) def do_logout(self, widget): self.actions.logout(self.config) def do_reboot(self, widget): self.actions.reboot(self.config) def cancel(self, widget): print("Cancel any logout action.") Gtk.main_quit() # load configs config = lmlib.Initialize_config(os.environ['LOGOUT_MANAGER_CONF']) actions = lmlib.Actions # MAIN LOOP win = MainWindow(config, actions) win.connect("destroy", Gtk.main_quit) win.show_all() Gtk.main()