gnome-devel-docs 3.28.0-1 / usr / share / help / el / gnome-devel-demos / aboutdialog.js.page

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<?xml version="1.0" encoding="utf-8"?>
<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="aboutdialog.js" xml:lang="el">
  <info>
  <title type="text">AboutDialog (JavaScript)</title>
    <link type="guide" xref="beginner.js#windows"/>
    <revision version="0.1" date="2012-05-30" status="draft"/>

    <credit type="author copyright">
      <name>Taryn Fox</name>
      <email its:translate="no">jewelfox@fursona.net</email>
      <years>2012</years>
    </credit>

    <desc>Εμφάνιση πληροφοριών για μια εφαρμογή</desc>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Ελληνική μεταφραστική ομάδα GNOME</mal:name>
      <mal:email>team@gnome.gr</mal:email>
      <mal:years>2012-2015</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Δημήτρης Σπίγγος</mal:name>
      <mal:email>dmtrs32@gmail.com</mal:email>
      <mal:years>2012, 2013</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Μαρία Θουκιδίδου</mal:name>
      <mal:email>marablack3@gmail.com</mal:email>
      <mal:years>2014</mal:years>
    </mal:credit>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>Θάνος Τρυφωνίδης</mal:name>
      <mal:email>tomtryf@gmail.com</mal:email>
      <mal:years>2014, 2015</mal:years>
    </mal:credit>
  </info>

  <title>AboutDialog</title>
  <media type="image" mime="image/png" src="media/aboutdialog_GMenu.png"/>
  <p>Ένα παράθυρο αναγκαστικού διαλόγου που εμφανίζει πληροφορίες για μια εφαρμογή και τους δημιουργούς της. Αυτό εμφανίζεται με κλικ στο "Περί" στο μενού της εφαρμογής, που είναι κανονικά μια καλή θέση για να το βάλετε.</p>

<code mime="application/javascript" style="numbered">#!/usr/bin/gjs

imports.gi.versions.Gtk = '3.0';

const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;

class AboutDialogExample {

    // Create the application itself
    constructor() {
        this.application = new Gtk.Application({
            application_id: 'org.example.jsaboutdialog',
            flags: Gio.ApplicationFlags.FLAGS_NONE
        });

        // Connect 'activate' and 'startup' signals to the callback functions
        this.application.connect('activate', this._onActivate.bind(this));
        this.application.connect('startup', this._onStartup.bind(this));
    }

    // Callback function for 'activate' signal presents windows when active
    _onActivate() {
        this._window.present();
    }

    // Callback function for 'startup' signal creates the menu and builds the UI
    _onStartup() {
        this._initMenus();
        this._buildUI();
    }

    // Build the application's UI
    _buildUI() {
        // Create the application window
        this._window = new Gtk.ApplicationWindow({ application: this.application,
                                                   window_position: Gtk.WindowPosition.CENTER,
                                                   title: "AboutDialog Example",
                                                   default_height: 250,
                                                   default_width: 350 });

        // Show the window and all child widgets
        this._window.show_all();
    }

    // Create the application menu
    _initMenus() {
        let menu = new Gio.Menu();
        menu.append("About", 'app.about');
        menu.append("Quit",'app.quit');
        this.application.set_app_menu(menu);

        // Create the "About" menu option and have it call the _showAbout() function
        let aboutAction = new Gio.SimpleAction({ name: 'about' });
        aboutAction.connect('activate', () =&gt; { this._showAbout(); });
        this.application.add_action(aboutAction);

        // Create the "Quit" menu option and have it close the window
        let quitAction = new Gio.SimpleAction ({ name: 'quit' });
        quitAction.connect('activate', () =&gt; { this._window.destroy(); });
        this.application.add_action(quitAction);
    }

    _showAbout() {

        // String arrays of the names of the people involved in the project
        var authors = ["GNOME Documentation Team"];
        var documenters = ["GNOME Documentation Team"];

        // Create the About dialog
        let aboutDialog = new Gtk.AboutDialog({ title: "AboutDialog Example",
                                                program_name: "GtkApplication Example",
                                                copyright: "Copyright \xa9 2012 GNOME Documentation Team",
                                                authors: authors,
                                                documenters: documenters,
                                                website: "http://developer.gnome.org",
                                                website_label: "GNOME Developer Website" });

        // Attach the About dialog to the window
        aboutDialog.modal = true;
        aboutDialog.transient_for = this._window;

        // Show the About dialog
        aboutDialog.show();

        // Connect the Close button to the destroy signal for the dialog
        aboutDialog.connect('response', function() {
            aboutDialog.destroy();
        });
    }
};

// Run the application
let app = new AboutDialogExample();
app.application.run(ARGV);
</code>
<p>Σε αυτό το παράδειγμα χρησιμοποιήσαμε τα παρακάτω:</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>
  <item><p><link href="http://www.roojs.com/seed/gir-1.2-gtk-3.0/gjs/Gtk.AboutDialog.html">Gtk.AboutDialog</link></p></item>
  <item><p><link href="http://www.roojs.com/seed/gir-1.2-gtk-3.0/gjs/Gtk.Application.html">Gtk.Application</link></p></item>
  <item><p><link href="http://developer.gnome.org/gtk3/stable/GtkApplicationWindow.html">Gtk.ApplicationWindow</link></p></item>
</list>
</page>

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