TrayTypical.py

#!/usr/bin/env python

# found on <http://files.majorsilence.com/rubbish/pygtk-book/pygtk-notebook-html/pygtk-notebook-latest.html#SECTION00430000000000000000>
# simple example of a tray icon application using PyGTK
# this is a typical tray operation: An action is made on left click - a popup menu appears on right-click.

import gtk

def message(data=None):
  "Function to display messages to the user."
  msg=gtk.MessageDialog(None, gtk.DIALOG_MODAL,
    gtk.MESSAGE_INFO, gtk.BUTTONS_OK, data)
  msg.run()
  msg.destroy()

def open_app(data=None):
  message(data)

def close_app(data=None):
  message(data)
  gtk.main_quit()

def make_menu(event_button, event_time, data=None):
  menu = gtk.Menu()
  open_item = gtk.MenuItem("Open App")
  close_item = gtk.MenuItem("Close App")

  #Append the menu items
  menu.append(open_item)
  menu.append(close_item)
  #add callbacks
  open_item.connect_object("activate", open_app, "Open App")
  close_item.connect_object("activate", close_app, "Close App")
  #Show the menu items
  open_item.show()
  close_item.show()

  #Popup the menu
  menu.popup(None, None, None, event_button, event_time)

def on_right_click(data, event_button, event_time):
  make_menu(event_button, event_time)

def on_left_click(event):
  message("Status Icon Left Clicked")

if __name__ == '__main__':
  icon = gtk.status_icon_new_from_stock(gtk.STOCK_ABOUT)
  icon.connect('popup-menu', on_right_click)
  icon.connect('activate', on_left_click)
  gtk.main()

#By default connect 'popup-menu' works in right click.
#and connect 'activate' works in left click.
#connect popup-menu action sends to right-click function 3 variables
#connect activate action send to left-click function 1 variable