Parse GTK Menu Model

glib-menu-model-window-introspection.py

#!/usr/bin/python

from __future__ import print_function

import re
import signal
import subprocess
import sys
from gi.repository import Gio, Gtk, GLib

xwininfo = subprocess.check_output(["xwininfo"]).decode('utf-8')
xid = int(re.search('Window id: (0x[0-9A-Fa-f]+) ', xwininfo).group(1), 16)

def get_x_property(xid, prop):
  value = subprocess.check_output("xprop {} -id {}".format(prop, xid).split()).decode('utf-8')
  return re.search(' = "([^\"]+)', value).group(1)

# Workaround Ctrl+C not working with gio-gtk3
signal.signal(signal.SIGINT, signal.SIG_DFL)
bus = Gio.bus_get_sync(Gio.BusType.SESSION)
menus = Gio.DBusMenuModel.get(bus, get_x_property(xid, "_GTK_UNIQUE_BUS_NAME"),
                                   get_x_property(xid, "_GTK_MENUBAR_OBJECT_PATH"))
menus_ref = [menus]

def iterate_menus(menus, level=0):
  global menus_ref
  print(level*"\t","callback,",menus," menusize: ",menus.get_n_items())

  for i in range(menus.get_n_items()):
    miter = menus.iterate_item_attributes(i)
    while miter.next():
      print(level*"\t","attr:",miter.get_name()," = ",miter.get_value())

    miter = menus.iterate_item_links(i)
    while miter.next():
      menu = miter.get_value()
      print(level*"\t","link:",miter.get_name()," = ",menu)
      menus_ref.append(menu)
      menu.connect("items-changed", on_items_changed, level+1)
      menu.get_n_items()

def on_items_changed(menus, position, removed, added, level=0):
  iterate_menus(menus, level)

menus.connect("items-changed", on_items_changed)
menus.get_n_items()

GLib.MainLoop.new(None, False).run()