Pileus Git - ~andy/gtk/blob - gtk/gtkapplication.c

   1 /*
   2  * Copyright © 2010 Codethink Limited
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the licence, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  *
  19  * Author: Ryan Lortie <desrt@desrt.ca>
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <string.h>
  27
  28 #include "gtkapplication.h"
  29 #include "gtkmarshalers.h"
  30 #include "gtkwindow.h"
  31 #include "gtkmain.h"
  32
  33 #include <gdk/gdk.h>
  34 #ifdef GDK_WINDOWING_X11
  35 #include <gdk/x11/gdkx.h>
  36 #endif
  37
  38 /**
  39  * SECTION:gtkapplication
  40  * @title: GtkApplication
  41  * @short_description: Application class
  42  *
  43  * #GtkApplication is a class that handles many important aspects
  44  * of a GTK+ application in a convenient fashion, without enforcing
  45  * a one-size-fits-all application model.
  46  *
  47  * Currently, GtkApplication handles application uniqueness, provides
  48  * some basic scriptability by exporting 'actions', implements some
  49  * standard actions itself (such as 'Quit') and provides a main window
  50  * whose life-cycle is automatically tied to the life-cycle of your
  51  * application.
  52  *
  53  * <example id="gtkapplication"><title>A simple application</title>
  54  * <programlisting>
  55  * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gtk/tests/gtk-example-application.c">
  56  *  <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
  57  * </xi:include>
  58  * </programlisting>
  59  * </example>
  60  */
  61
  62 G_DEFINE_TYPE (GtkApplication, gtk_application, G_TYPE_APPLICATION)
  63
  64 GtkApplication *
  65 gtk_application_new (const gchar       *application_id,
  66                      GApplicationFlags  flags)
  67 {
  68   g_return_val_if_fail (g_application_id_is_valid (application_id), NULL);
  69
  70   g_type_init ();
  71
  72   return g_object_new (GTK_TYPE_APPLICATION,
  73                        "application-id", application_id,
  74                        "flags", flags,
  75                        NULL);
  76 }
  77
  78 static void
  79 gtk_application_startup (GApplication *application)
  80 {
  81   gtk_init (0, 0);
  82 }
  83
  84 static void
  85 gtk_application_quit_mainloop (GApplication *application)
  86 {
  87   gtk_main_quit ();
  88 }
  89
  90 static void
  91 gtk_application_run_mainloop (GApplication *application)
  92 {
  93   gtk_main ();
  94 }
  95
  96 static void
  97 gtk_application_add_platform_data (GApplication    *application,
  98                                    GVariantBuilder *builder)
  99 {
 100   const gchar *startup_id;
 101
 102   startup_id = getenv ("DESKTOP_STARTUP_ID");
 103
 104   if (startup_id && g_utf8_validate (startup_id, -1, NULL))
 105     g_variant_builder_add (builder, "{sv}", "desktop-startup-id",
 106                            g_variant_new_string (startup_id));
 107 }
 108
 109 static void
 110 gtk_application_before_emit (GApplication *application,
 111                              GVariant     *platform_data)
 112 {
 113   GVariantIter iter;
 114   const gchar *key;
 115   GVariant *value;
 116
 117   g_variant_iter_init (&iter, platform_data);
 118   while (g_variant_iter_loop (&iter, "{&sv}", &key, &value))
 119     {
 120       if (strcmp (key, "desktop-startup-id") == 0)
 121         {
 122           GdkDisplay *display;
 123           const gchar *id;
 124
 125           display = gdk_display_get_default ();
 126           id = g_variant_get_string (value, NULL);
 127           gdk_x11_display_set_startup_notification_id (display, id);
 128        }
 129     }
 130 }
 131
 132 static void
 133 gtk_application_after_emit (GApplication *application,
 134                             GVariant     *platform_data)
 135 {
 136   gdk_notify_startup_complete ();
 137 }
 138
 139 static void
 140 gtk_application_init (GtkApplication *application)
 141 {
 142 }
 143
 144 static void
 145 gtk_application_class_init (GtkApplicationClass *class)
 146 {
 147   GApplicationClass *application_class = G_APPLICATION_CLASS (class);
 148
 149   application_class->add_platform_data = gtk_application_add_platform_data;
 150   application_class->before_emit = gtk_application_before_emit;
 151   application_class->after_emit = gtk_application_after_emit;
 152   application_class->startup = gtk_application_startup;
 153
 154   application_class->quit_mainloop = gtk_application_quit_mainloop;
 155   application_class->run_mainloop = gtk_application_run_mainloop;
 156 }