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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="gmenu.js" xml:lang="ca">
<info>
<title type="text">GMenu (JavaScript)</title>
<link type="guide" xref="beginner.js#menu-combo-toolbar"/>
<revision version="0.1" date="2012-04-07" status="draft"/>
<credit type="author copyright">
<name>Tiffany Antopolski</name>
<email its:translate="no">tiffany.antopolski@gmail.com</email>
<years>2012</years>
</credit>
<desc>A simple implementation of GMenuModel</desc>
</info>
<title>GMenu</title>
<media type="image" mime="image/png" src="media/gmenu.js.png"/>
<p>A GtkApplication with a simple GMenu and SimpleActions</p>
<code mime="application/javascript" style="numbered">#!/usr/bin/gjs
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Application = new Lang.Class ({
Name: 'Application',
//create the application
_init: function () {
this.application = new Gtk.Application ({
application_id: 'org.example.myapp',
flags: Gio.ApplicationFlags.FLAGS_NONE
});
//connect to 'activate' and 'startup' signals to the callback functions
this.application.connect('activate', Lang.bind(this, this._onActivate));
this.application.connect('startup', Lang.bind(this, this._onStartup));
},
//create the UI (in this case it's just the ApplicationWindow
_buildUI: function() {
this._window = new Gtk.ApplicationWindow ({ application: this.application,
window_position: Gtk.WindowPosition.CENTER,
title: "Welcome to GNOME" });
//uncommenting the line below will change the window size
//this._window.set_default_size(600, 400);
//show the window and all child widgets (none in this case)
this._window.show_all();
},
_showNew: function() {
print ("This doesn't do anything. It is only a demonstration.");
},
_showAbout: function() {
print ("No AboutDialog here. This is only a demonstration.");
},
//create the menu items and connect the signals to the callback functions.
_initMenus: function() {
let menu = new Gio.Menu();
menu.append("New",'app.new');
menu.append("About", 'app.about');
menu.append("Quit",'app.quit');
this.application.set_app_menu(menu);
let newAction = new Gio.SimpleAction ({ name: 'new' });
newAction.connect('activate', Lang.bind(this,
function() {
this._showNew();
}));
this.application.add_action(newAction);
let aboutAction = new Gio.SimpleAction ({ name: 'about' });
aboutAction.connect('activate', Lang.bind(this,
function() {
this._showAbout();
}));
this.application.add_action(aboutAction);
let quitAction = new Gio.SimpleAction ({ name: 'quit' });
quitAction.connect('activate', Lang.bind(this,
function() {
this._window.destroy();
}));
this.application.add_action(quitAction);
},
//callback function for 'activate' signal
_onActivate: function() {
this._window.present();
},
//callback function for 'startup' signal
_onStartup: function() {
//You must call _initMenus() before calling _buildUI().
this._initMenus();
this._buildUI();
}
});
//run the application
let app = new Application ();
app.application.run (ARGV);
</code>
<p>
In this sample we used the following:
</p>
<list>
<item><p><link href="http://developer.gnome.org/gio/unstable/GMenu.html">GMenu</link></p></item>
<item><p><link href="http://developer.gnome.org/gio/stable/GSimpleAction.html">GSimpleAction</link></p></item>
</list>
</page>
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