registryd/registry-main.c

   1 /*
   2  * AT-SPI - Assistive Technology Service Provider Interface
   3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
   4  *
   5  * Copyright 2001, 2002 Sun Microsystems Inc.,
   6  * Copyright 2001, 2002 Ximian, Inc.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24 #include <stdlib.h>
  25 #include <config.h>
  26 #include <string.h>
  27 #include <glib.h>
  28
  29 #include <dbus/dbus.h>
  30 #include <dbus/dbus-glib.h>
  31
  32 #include "paths.h"
  33 #include "registry.h"
  34 #include "deviceeventcontroller.h"
  35
  36 #if !defined ATSPI_INTROSPECTION_PATH
  37     #error "No introspection XML directory defined"
  38 #endif
  39
  40 static GMainLoop *mainloop;
  41 static gchar *dbus_name = NULL;
  42
  43 static DBusGConnection *bus_connection = NULL;
  44 static DBusGProxy      *sm_proxy = NULL;
  45 static char            *client_id = NULL;
  46 static DBusGProxy      *client_proxy = NULL;
  47
  48 static GOptionEntry optentries[] =
  49 {
  50   {"dbus-name", 0, 0, G_OPTION_ARG_STRING, &dbus_name, "Well-known name to register with D-Bus", NULL},
  51   {NULL}
  52 };
  53
  54 #define SM_DBUS_NAME      "org.gnome.SessionManager"
  55 #define SM_DBUS_PATH      "/org/gnome/SessionManager"
  56 #define SM_DBUS_INTERFACE "org.gnome.SessionManager"
  57
  58 #define SM_CLIENT_DBUS_INTERFACE "org.gnome.SessionManager.ClientPrivate"
  59
  60 static void registry_session_init (const char *previous_client_id, const char *exe);
  61
  62 static gboolean
  63 session_manager_connect (void)
  64 {
  65
  66         if (bus_connection == NULL) {
  67                 GError *error;
  68
  69                 error = NULL;
  70                 bus_connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
  71                 if (bus_connection == NULL) {
  72                         g_message ("Failed to connect to the session bus: %s",
  73                                    error->message);
  74                         g_error_free (error);
  75                         exit (1);
  76                 }
  77         }
  78
  79         sm_proxy = dbus_g_proxy_new_for_name (bus_connection,
  80                                               SM_DBUS_NAME,
  81                                               SM_DBUS_PATH,
  82                                               SM_DBUS_INTERFACE);
  83         return (sm_proxy != NULL);
  84 }
  85
  86 static void
  87 stop_cb (gpointer data)
  88 {
  89         g_main_loop_quit (mainloop);
  90 }
  91
  92 static gboolean
  93 end_session_response (gboolean is_okay, const gchar *reason)
  94 {
  95         gboolean ret;
  96         GError *error = NULL;
  97
  98         ret = dbus_g_proxy_call (client_proxy, "EndSessionResponse",
  99                                  &error,
 100                                  G_TYPE_BOOLEAN, is_okay,
 101                                  G_TYPE_STRING, reason,
 102                                  G_TYPE_INVALID,
 103                                  G_TYPE_INVALID);
 104
 105         if (!ret) {
 106                 g_warning ("Failed to send session response %s", error->message);
 107                 g_error_free (error);
 108         }
 109
 110         return ret;
 111 }
 112
 113 static void
 114 query_end_session_cb (guint flags, gpointer data)
 115 {
 116         end_session_response (TRUE, NULL);
 117 }
 118
 119 static void
 120 end_session_cb (guint flags, gpointer data)
 121 {
 122         end_session_response (TRUE, NULL);
 123         g_main_loop_quit (mainloop);
 124 }
 125 static gboolean
 126 register_client (void)
 127 {
 128         GError     *error;
 129         gboolean    res;
 130         const char *startup_id;
 131         const char *app_id;
 132
 133         startup_id = g_getenv ("DESKTOP_AUTOSTART_ID");
 134         app_id = "at-spi-registryd.desktop";
 135
 136         error = NULL;
 137         res = dbus_g_proxy_call (sm_proxy,
 138                                  "RegisterClient",
 139                                  &error,
 140                                  G_TYPE_STRING, app_id,
 141                                  G_TYPE_STRING, startup_id,
 142                                  G_TYPE_INVALID,
 143                                  DBUS_TYPE_G_OBJECT_PATH, &client_id,
 144                                  G_TYPE_INVALID);
 145         if (! res) {
 146                 g_warning ("Failed to register client: %s", error->message);
 147                 g_error_free (error);
 148                 return FALSE;
 149         }
 150
 151         client_proxy = dbus_g_proxy_new_for_name (bus_connection,
 152                                                   SM_DBUS_NAME,
 153                                                   client_id,
 154                                                   SM_CLIENT_DBUS_INTERFACE);
 155
 156         dbus_g_proxy_add_signal (client_proxy, "Stop", G_TYPE_INVALID);
 157         dbus_g_proxy_connect_signal (client_proxy, "Stop",
 158                                      G_CALLBACK (stop_cb), NULL, NULL);
 159
 160         dbus_g_proxy_add_signal (client_proxy, "QueryEndSession", G_TYPE_UINT, G_TYPE_INVALID);
 161         dbus_g_proxy_connect_signal (client_proxy, "QueryEndSession",
 162                                      G_CALLBACK (query_end_session_cb), NULL, NULL);
 163
 164         dbus_g_proxy_add_signal (client_proxy, "EndSession", G_TYPE_UINT, G_TYPE_INVALID);
 165         dbus_g_proxy_connect_signal (client_proxy, "EndSession",
 166                                      G_CALLBACK (end_session_cb), NULL, NULL);
 167
 168         g_unsetenv ("DESKTOP_AUTOSTART_ID");
 169
 170         return TRUE;
 171 }
 172
 173 int
 174 main (int argc, char **argv)
 175 {
 176   SpiRegistry *registry;
 177   SpiDEController *dec;
 178   gchar *introspection_directory;
 179
 180   DBusConnection *bus;
 181
 182   GOptionContext *opt;
 183
 184   GError *err = NULL;
 185   DBusError error;
 186   int ret;
 187
 188   g_type_init();
 189
 190   /* We depend on GDK as well as XLib for device event processing */
 191   gdk_init(&argc, &argv);
 192
 193   /*Parse command options*/
 194   opt = g_option_context_new(NULL);
 195   g_option_context_add_main_entries(opt, optentries, NULL);
 196
 197   if (!g_option_context_parse(opt, &argc, &argv, &err))
 198       g_error("Option parsing failed: %s\n", err->message);
 199
 200   if (dbus_name == NULL)
 201       dbus_name = SPI_DBUS_NAME_REGISTRY;
 202
 203   dbus_error_init (&error);
 204   bus = dbus_bus_get(DBUS_BUS_SESSION, &error);
 205   if (!bus)
 206   {
 207     g_warning("Couldn't connect to dbus: %s\n", error.message);
 208   }
 209
 210   mainloop = g_main_loop_new (NULL, FALSE);
 211   dbus_connection_setup_with_g_main(bus, g_main_context_default());
 212
 213   ret = dbus_bus_request_name(bus, dbus_name, DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
 214   if (ret == DBUS_REQUEST_NAME_REPLY_EXISTS)
 215     {
 216       g_error("Could not obtain D-Bus name - %s\n", dbus_name);
 217     }
 218   else
 219     {
 220       g_print ("SpiRegistry daemon is running with well-known name - %s\n", dbus_name);
 221     }
 222
 223   /* Get D-Bus introspection directory */
 224   introspection_directory = (char *) g_getenv("ATSPI_INTROSPECTION_PATH");
 225   if (introspection_directory == NULL)
 226       introspection_directory = ATSPI_INTROSPECTION_PATH;
 227
 228   registry = spi_registry_new (bus);
 229   dec = spi_registry_dec_new (registry, bus);
 230
 231   if (!session_manager_connect ())
 232     {
 233       g_warning ("Unable to connect to session manager");
 234     }
 235
 236   if (!register_client ())
 237     {
 238       g_warning ("Unable to register client with session manager");
 239     }
 240
 241   g_main_loop_run (mainloop);
 242   return 0;
 243 }