add lm trayicon, and fix #1

   Add program, its menu entry, and xdg autostart entry (disabled)
   Fix #1: cli executes valid command but still shows help message

1 files changed, 163 insertions, 0 deletions

diff --git a/src/usr/bin/logout-manager-trayicon b/src/usr/bin/logout-manager-trayicon
new file mode 100755
index 0000000..b6471f9
--- /dev/null
+++ b/src/usr/bin/logout-manager-trayicon
@@ -0,0 +1,163 @@
+#!/usr/bin/env python3
+# File: logout-manager-trayicon
+# License: CC-BY-SA 4.0
+# Author: bgstack15
+# Reference:
+#    icon work https://stackoverflow.com/questions/45162862/how-do-i-set-an-icon-for-the-whole-application-using-pygobject
+#    button right click must be from "button-press-event" and import Gdk https://python-gtk-3-tutorial.readthedocs.io/en/latest/menus.html
+#    useful reference https://lazka.github.io/pgi-docs/Gtk-3.0/classes/Button.html#Gtk.Button
+#    systray info https://github.com/PiSupply/PiJuice/blob/master/Software/Source/src/pijuice_tray.py
+#    logout-manager-gtk.py
+#    how to determine double click https://stackoverflow.com/questions/60009648/is-there-a-better-way-to-handle-double-click-in-pygobject
+#    interactive python3 shell and help(Gdk.EventType)
+#    https://developer.gnome.org/gtk3/unstable/GtkWidget.html#GtkWidget-button-press-event
+#    find running processes https://thispointer.com/python-get-list-of-all-running-processes-and-sort-by-highest-memory-usage/
+#    send signals https://stackoverflow.com/questions/15080500/how-can-i-send-a-signal-from-a-python-program
+#    https://docs.python.org/3.8/library/signal.html#module-signal
+# Dependencies:
+#    dep-pip: psutil
+#    dep-devuan: python3-psutil
+
+import gi, os, platform, re, sys, psutil, signal
+gi.require_version("Gtk","3.0")
+from gi.repository import Gtk
+from gi.repository import Gdk
+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
+
+def is_dryrun():
+   result = False
+   try:
+      if "DRYRUN" in os.environ and os.environ["DRYRUN"] != "": result = True
+   except:
+      pass
+   return result
+
+def run_or_kill_logout_manager():
+   #print("Run or kill logout manager!")
+   _lm_is_running = False
+   lmregex = re.compile("logout-manager.*--from-trayicon")
+   lmprintregex = re.compile("logout-manager")
+   thisproc = None
+   for proc in psutil.process_iter():
+      try:
+         cmdline = " ".join(proc.cmdline())
+         #if lmprintregex.search(cmdline) != None: print("Checking \"" + cmdline + "\"")
+         if lmregex.search(cmdline) != None:
+            _lm_is_running = True
+            thisproc = proc
+            break
+      except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
+         pass
+
+   if _lm_is_running:
+      #print("Stopping the following process.")
+      #print(thisproc)
+      os.kill(thisproc.pid,signal.SIGHUP)
+   else:
+      # start new instance
+      #print("Please start a new instance")
+
+      # this actually returns the new pid, and we could choose to signal only this pid.
+      # but we will not at this point.
+      newpid = os.spawnvp(os.P_NOWAIT,"logout-manager",["logout-manager","--from-trayicon"])
+      print("spawned",newpid)
+
+class MainIcon(Gtk.StatusIcon):
+   def __init__(self,config,actions):
+      Gtk.StatusIcon.__init__(self)
+      self.config = config
+      self.actions = actions
+      self.set_from_icon_name(self.config.get_logout_icon())
+      loggedin_str = "Logged in as " + str(os.environ["USER"])
+      tooltiptext = loggedin_str
+      if is_dryrun():
+         tooltiptext = "DRYRUN MODE: " + tooltiptext
+      self.set_tooltip_text(tooltiptext)
+
+      self.traymenu = Gtk.Menu()
+      self.add_action_to_menu("Loc_k",self.config.get_lock_icon(),self.on_lock_menuitem)
+      self.add_action_to_menu("_Logout",self.config.get_logout_icon(),self.on_logout_menuitem)
+      self.add_action_to_menu("_Hibernate",self.config.get_hibernate_icon(),self.on_hibernate_menuitem)
+      self.add_action_to_menu("_Shutdown",self.config.get_shutdown_icon(),self.on_shutdown_menuitem)
+      self.add_action_to_menu("_Reboot",self.config.get_reboot_icon(),self.on_reboot_menuitem)
+
+      # separator
+      i = Gtk.SeparatorMenuItem.new()
+      i.show()
+      self.traymenu.append(i)
+
+      # logged in as
+      i = Gtk.MenuItem.new_with_label(tooltiptext)
+      i.set_sensitive(False)
+      i.show()
+      self.traymenu.append(i)
+
+      # hide tray icon
+      i = Gtk.MenuItem.new_with_mnemonic("Hide _tray icon")
+      i.show()
+      i.connect("activate", self.exit)
+      self.traymenu.append(i)
+
+      self.connect("button-press-event", self.on_button_press_event)
+      self.connect("popup-menu", self.show_menu)
+
+   def on_button_press_event(self, b_unknown, event: Gdk.EventButton):
+      if Gdk.EventType._2BUTTON_PRESS == event.type:
+         run_or_kill_logout_manager()
+
+   def exit(self, widget):
+      quit()
+
+   def show_menu(self, widget, event_button, event_time):
+      self.traymenu.popup(None, None,
+         self.position_menu,
+         self,
+         event_button,
+         Gtk.get_current_event_time())
+
+   def on_lock_menuitem(self, widget):
+      self.actions.lock(self.config)
+
+   def on_logout_menuitem(self, widget):
+      self.actions.logout(self.config)
+
+   def on_hibernate_menuitem(self, widget):
+      self.actions.hibernate(self.config)
+
+   def on_shutdown_menuitem(self, widget):
+      self.actions.shutdown(self.config)
+
+   def on_reboot_menuitem(self, widget):
+      self.actions.reboot(self.config)
+
+   def add_action_to_menu(self,label_str,icon_str,function_func):
+      i = Gtk.ImageMenuItem.new_with_mnemonic(label_str)
+      j = Gtk.Image.new_from_icon_name(icon_str,32)
+      j.show()
+      i.set_image(j)
+      i.set_always_show_image(True)
+      i.show()
+      i.connect("activate", function_func)
+      self.traymenu.append(i)
+
+# load configs
+config = lmlib.Initialize_config(os.environ['LOGOUT_MANAGER_CONF'])
+actions = lmlib.Actions
+
+icon = MainIcon(config,actions)
+Gtk.main()