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+#!/usr/bin/env python3
+# File: logout-manager.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
+# Improve:
+#    read commands to execute from an ini file
+#    actually execute the commands
+#    far future: provide graphical way to change commands run
+# Documentation:
+
+import gi, warnings
+gi.require_version("Gtk","3.0")
+from gi.repository import Gtk
+from gi.repository import Gdk
+from gi.repository.GdkPixbuf import Pixbuf
+
+logout_manager_version="2019-06-01a"
+application_icon=("system-log-out")
+
+# graphical classes
+class MainWindow(Gtk.Window):
+   def __init__(self):
+      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(application_icon, 24, 0)
+      pixbuf32 = Gtk.IconTheme.get_default().load_icon(application_icon, 32, 0)
+      pixbuf48 = Gtk.IconTheme.get_default().load_icon(application_icon, 48, 0)
+      pixbuf64 = Gtk.IconTheme.get_default().load_icon(application_icon, 64, 0)
+      pixbuf96 = Gtk.IconTheme.get_default().load_icon(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.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 = Gtk.Image()
+      self.buttonicon1.set_from_icon_name("system-log-out",24)
+      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.button2 = Gtk.Button(label="Shut_down")
+      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.set_from_icon_name("system-shutdown",24)
+      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()
+      # WORKS, when it was a box object self.box.pack_start(self.button3, True, True, 3)
+      # WORKS self.buttonicon3.set_from_file("/usr/share/icons/Adwaita/48x48/actions/system-log-out.png")
+      # WORKS self.buttonicon3.set_from_icon_name("system-log-out",24)
+      self.buttonicon3.set_from_icon_name("system-reboot",24)
+      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.button4,0,1,3,1)
+
+   # 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("please shut yourself down!")
+      print(dir(self.props))
+
+   def do_logout(self, widget):
+      print("please log out of current session!")
+
+   def do_reboot(self, widget):
+      print("please reboot.")
+
+   def cancel(self, widget):
+      print("Cancel any logout action.")
+      Gtk.main_quit()
+
+# MAIN LOOP
+win = MainWindow()
+win.connect("destroy", Gtk.main_quit)
+win.show_all()
+Gtk.main()