public class MyWindow : Gtk.ApplicationWindow {

	/* Callback functions for the window actions. */

	void copy_cb (SimpleAction action, Variant? parameter) {

		print ("\"Copy\" activated\n");

	}

	void paste_cb (SimpleAction action, Variant? parameter) {

		print ("\"Paste\" activated\n");

	}

	void shape_cb (SimpleAction action, Variant? parameter) {

		print ("shape is set to %s\n", parameter.get_string(null));

		action.set_state (parameter);

	}

	/* Create the window actions. */

	const ActionEntry[] actions = {

		/*{ "action name", cb to connect to "activate" signal, parameter type,

		     initial state, cb to connect to "change-state" signal } */

		{ "copy", copy_cb },

		{ "paste", paste_cb },

		{ "shape", shape_cb, "s", "'line'"}

	};

	internal MyWindow (MyApplication app) {

		Object (application: app, title: "MenuBar Example");

		this.set_default_size (200, 200);

		/* Setup window actions. */

		this.add_action_entries (actions, this);

	}

}

class MyApplication: Gtk.Application {

	protected override void activate () {

		new MyWindow (this).show ();

	}

	/* Callback functions for the application actions. */

	void new_cb (SimpleAction action, Variant? parameter) {

		//new MyWindow (this).show ();

		print ("You clicked \"New\"\n");

	}

	void quit_cb (SimpleAction action, Variant? parameter) {

		print ("You clicked \"Quit\"\n");

		this.quit ();

	}

	void awesome_cb (SimpleAction action, Variant? parameter) {

		var active = action.get_state ().get_boolean ();

		action.set_state (new Variant.boolean (!active));

		if (active)

			print ("You unchecked \"Awesome\"\n");

		else

			print ("You checked \"Awesome\"\n");

	}

	void state_cb (SimpleAction action, Variant? parameter) {

		print ("state is set to %s\n", parameter.get_string(null));

		action.set_state (parameter);

	}

	/* Create the application actions. */

	const ActionEntry[] actions = {

		{ "new", new_cb },

		{ "quit", quit_cb },

		{ "awesome", awesome_cb, null, "false" },

		{ "state", state_cb, "s", "'off'" }

	};

	protected override void startup () {

		base.startup ();

		/* Setup application actions. */

		this.add_action_entries (actions, this);

		/* Setup menubar and app_menu. */

		/* Get the UI file. */

		var builder = new Gtk.Builder ();

		try {

			builder.add_from_file ("menubar.ui");

		} catch (Error e) {

			error ("Unable to load file: %s", e.message);

		}

		/* Get the menubar from the builder. */

		this.menubar = builder.get_object ("menubar") as MenuModel;

		/* Get the app_menu from the builder. */

		this.app_menu = builder.get_object ("appmenu") as MenuModel;

	}

}

/* main creates and runs the application. */

public int main (string[] args) {

	return new MyApplication ().run (args);

}