1  #include <gio/gio.h>
       2  #include <stdlib.h>
       3  #include <string.h>
       4  
       5  static void
       6  activate (GApplication *application)
       7  {
       8    g_print ("activated\n");
       9  
      10    /* Note: when doing a longer-lasting action here that returns
      11     * to the mainloop, you should use g_application_hold() and
      12     * g_application_release() to keep the application alive until
      13     * the action is completed.
      14     */
      15  }
      16  
      17  typedef GApplication TestApplication;
      18  typedef GApplicationClass TestApplicationClass;
      19  
      20  static GType test_application_get_type (void);
      21  G_DEFINE_TYPE (TestApplication, test_application, G_TYPE_APPLICATION)
      22  
      23  static gboolean
      24  test_application_dbus_register (GApplication    *application,
      25                                  GDBusConnection *connection,
      26                                  const gchar     *object_path,
      27                                  GError         **error)
      28  {
      29    /* We must chain up to the parent class */
      30    if (!G_APPLICATION_CLASS (test_application_parent_class)->dbus_register (application,
      31                                                                             connection,
      32                                                                             object_path,
      33                                                                             error))
      34      return FALSE;
      35  
      36    /* Now we can do our own stuff here. For example, we could export some D-Bus objects */
      37    return TRUE;
      38  }
      39  
      40  static void
      41  test_application_dbus_unregister (GApplication    *application,
      42                                    GDBusConnection *connection,
      43                                    const gchar     *object_path)
      44  {
      45    /* Do our own stuff here, e.g. unexport any D-Bus objects we exported in the dbus_register
      46     * hook above. Be sure to check that we actually did export them, since the hook
      47     * above might have returned early due to the parent class' hook returning FALSE!
      48     */
      49  
      50    /* Lastly, we must chain up to the parent class */
      51    G_APPLICATION_CLASS (test_application_parent_class)->dbus_unregister (application,
      52                                                                          connection,
      53                                                                          object_path);
      54  }
      55  
      56  static void
      57  test_application_init (TestApplication *app)
      58  {
      59  }
      60  
      61  static void
      62  test_application_class_init (TestApplicationClass *class)
      63  {
      64    GApplicationClass *g_application_class = G_APPLICATION_CLASS (class);
      65  
      66    g_application_class->dbus_register = test_application_dbus_register;
      67    g_application_class->dbus_unregister = test_application_dbus_unregister;
      68  }
      69  
      70  static GApplication *
      71  test_application_new (const gchar       *application_id,
      72                        GApplicationFlags  flags)
      73  {
      74    g_return_val_if_fail (g_application_id_is_valid (application_id), NULL);
      75  
      76    return g_object_new (test_application_get_type (),
      77                         "application-id", application_id,
      78                         "flags", flags,
      79                         NULL);
      80  }
      81  
      82  int
      83  main (int argc, char **argv)
      84  {
      85    GApplication *app;
      86    int status;
      87  
      88    app = test_application_new ("org.gtk.TestApplication", 0);
      89    g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
      90    g_application_set_inactivity_timeout (app, 10000);
      91  
      92    status = g_application_run (app, argc, argv);
      93  
      94    g_object_unref (app);
      95  
      96    return status;
      97  }