How To Create A Complete Menu Using Gio Actions In Pygi Gtk?

I'm trying to convert the menubar in my Gtk app so it will use GActions(from the Gio) as opposed of GtkActions in Python3 using GObject Instrospection. I've been trying to figure i

Solution 1:

A menubar is added now.

#!/usr/bin/env python3

# Copyright (C) 2013 LiuLang <gsushzhsosgsu@gmail.com>

# Use of this source code is governed by GPLv3 license that can be found
# in http://www.gnu.org/licenses/gpl-3.0.html

from gi.repository import Gio
from gi.repository import Gtk
import sys

menus_str ='''
<?xml version="1.0"?>
<interface>
  <menu id="appmenu">
    <section>
      <item>
        <attribute name="label" translatable="yes">Preferences</attribute>
        <attribute name="action">app.preferences</attribute>
      </item>
    </section>
    <section>
      <item>
        <attribute name="label" translatable="yes">About</attribute>
        <attribute name="action">app.about</attribute>
      </item>
      <item>
        <attribute name="label" translatable="yes">Quit</attribute>
        <attribute name="action">app.quit</attribute>
        <attribute name="accel">&lt;Primary&gt;q</attribute>
      </item>
    </section>
  </menu>
  <menu id="menubar">
    <submenu>
      <attribute name="label">_Help</attribute>
      <section>
        <item>
              <attribute name="label">_About</attribute>
              <attribute name="action">app.about</attribute>
            </item>
          </section>
        </submenu>
      </menu>
    </interface>
    '''

    class App:
        def __init__(self):
            self.app = Gtk.Application.new('org.liulang.test', 0)
            self.app.connect('startup', self.on_app_startup)
            self.app.connect('activate', self.on_app_activate)
            self.app.connect('shutdown', self.on_app_shutdown)

        def run(self, argv):
            self.app.run(argv)

        def on_app_startup(self, app):
            self.window = Gtk.ApplicationWindow.new(app)
            self.window.set_default_size(640, 480)
            self.window.set_title('Gio Actions Demo')
            self.window.set_border_width(5)
            # no need to connect delete-event/destroy signal

            app.add_window(self.window)

            label = Gtk.Label('Hello, Gtk3')
            self.window.add(label)
            label.props.halign = Gtk.Align.CENTER
            label.props.valign = Gtk.Align.CENTER

            builder = Gtk.Builder()
            # It is better to load ui from a seperate file
            builder.add_from_string(menus_str)
            builder.connect_signals(self)
            appmenu = builder.get_object('appmenu')
            app.set_app_menu(appmenu)
            menubar = builder.get_object('menubar')
            app.set_menubar(menubar)

            self.add_simple_action('preferences', 
                    self.on_action_preferences_activated)
            self.add_simple_action('about', self.on_action_about_activated)
            self.add_simple_action('quit', self.on_action_quit_activated)

        def on_app_activate(self, app):
            self.window.show_all()

        def on_app_shutdown(self, app):
            # do some cleaning job here, like dumping configuration.
            pass

        def on_action_preferences_activated(self, action, user_data):
            print('will popup preferences dialog')

        def on_action_about_activated(self, action, user_data):
            print('will show about dialog')

        def on_action_quit_activated(self, action, user_data):
            # This will close the default gtk mainloop
            self.app.quit()

        def add_simple_action(self, name, callback):
            action = Gio.SimpleAction.new(name, None)
            action.connect('activate', callback)
            self.app.add_action(action)


    if __name__ == '__main__':
        app = App()
        app.run(sys.argv)