Removed the extra boolean parameter added to know when to unref the
[platform/core/uifw/at-spi2-atk.git] / atk-adaptor / bridge.c
index ab045a8..cb14c8a 100644 (file)
@@ -2,6 +2,7 @@
  * AT-SPI - Assistive Technology Service Provider Interface
  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
  *
+ * Copyright 2008, 2009 Codethink Ltd.
  * Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
  * Copyright 2001, 2002, 2003 Ximian, Inc.
  *
 
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
-#include <string.h>
-#include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
+#include <stdio.h>
 #include <stdarg.h>
+#include <string.h>
 #include <atk/atk.h>
-#include <atk/atkobject.h>
-#include <atk/atknoopobject.h>
-#include "accessible.h"
 
-#undef SPI_BRIDGE_DEBUG
+#include <droute/droute.h>
 
-#define DBG(a,b) if(_dbg>=(a))b
+#include "bridge.h"
+#include "event.h"
+#include "adaptors.h"
+#include "object.h"
 
-#define bridge_threads_leave() \
-  if (!during_init_shutdown && !g_main_context_is_owner (NULL)) atk_misc_threads_leave(misc);
-#define bridge_threads_enter() \
-  if (!during_init_shutdown && !g_main_context_is_owner (NULL)) atk_misc_threads_enter(misc);
+#include "accessible-register.h"
+#include "accessible-leasing.h"
+#include "accessible-cache.h"
 
-typedef struct _SpiAppData SpiAppData;
-struct _SpiAppData
-{
-  AtkObject *root;
-  DRouteData droute;
-};
+#include "common/spi-dbus.h"
 
-int _dbg = 0;
-static const char *registry = NULL;
-static char *device_event_controller = NULL;
-static SpiAppData *this_app = NULL;
-static gboolean registry_died = FALSE;
-static gboolean atk_listeners_registered = FALSE;
-static gint toplevels = 0;
-static gboolean exiting = FALSE;
-static AtkMisc *misc = NULL;
-static gboolean during_init_shutdown = TRUE;
-
-static guint atk_signal_text_changed;
-static guint atk_signal_children_changed;
-static guint atk_signal_active_descendant_changed;
-static guint atk_signal_text_selection_changed;
-
-/* NOT YET USED
-   static guint atk_signal_row_reordered;
-   static guint atk_signal_row_inserted;
-   static guint atk_signal_row_deleted;
-   static guint atk_signal_column_reordered;
-   static guint atk_signal_column_inserted;
-   static guint atk_signal_column_deleted;
-*/
-
-static guint atk_signal_link_selected;
-static guint atk_signal_bounds_changed;
-
-static const char *spi_atk_bridge_get_registry (void);
-static gboolean spi_atk_bridge_do_registration         (void);
-static void     spi_atk_bridge_toplevel_added          (AtkObject             *object,
-                                                        guint                 index,
-                                                        AtkObject             *child);
-static void     spi_atk_bridge_toplevel_removed        (AtkObject             *object,
-                                                        guint                 index,
-                                                        AtkObject             *child);
-
-static void     spi_atk_bridge_exit_func               (void);
-static void     spi_atk_register_event_listeners       (void);
-static void     spi_atk_bridge_focus_tracker           (AtkObject             *object);
-static gchar   *spi_atk_bridge_get_registry_ior        (void);
-static void     spi_atk_bridge_register_application    (const char *registry);
-static gboolean spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
-                                                       guint                  n_param_values,
-                                                       const GValue          *param_values,
-                                                       gpointer               data);
+/*---------------------------------------------------------------------------*/
 
-static gboolean
-spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
-                               guint n_param_values,
-                               const GValue *param_values,
-                               gpointer data);
-static gboolean
-spi_atk_bridge_document_event_listener (GSignalInvocationHint *signal_hint,
-                                guint n_param_values,
-                                const GValue *param_values,
-                                gpointer data);
-static gboolean
-spi_atk_bridge_state_event_listener (GSignalInvocationHint *signal_hint,
-                                    guint n_param_values,
-                                    const GValue *param_values,
-                                    gpointer data);
-static gboolean spi_atk_bridge_signal_listener         (GSignalInvocationHint *signal_hint,
-                                                       guint                  n_param_values,
-                                                       const GValue          *param_values,
-                                                       gpointer               data);
-static gint     spi_atk_bridge_key_listener            (AtkKeyEventStruct     *event,
-                                                       gpointer               data);
-static void     spi_atk_tidy_windows                   (void);
-static void     deregister_application                 (SpiAppData *app);
-static void reinit_register_vars (void);
-
-/* For automatic libgnome init */
-extern void gnome_accessibility_module_init     (void);
-extern void gnome_accessibility_module_shutdown (void);
-
-static int     atk_bridge_initialized = FALSE;
-static pid_t   atk_bridge_pid = 0;
-static guint   atk_bridge_focus_tracker_id = 0;
-static guint   atk_bridge_key_event_listener_id = 0;
-static GArray *listener_ids = NULL;
+SpiBridge *spi_global_app_data = NULL;
 
-/*
- *   These exported symbols are hooked by gnome-program
- * to provide automatic module initialization and shutdown.
- */
-extern void gnome_accessibility_module_init     (void);
-extern void gnome_accessibility_module_shutdown (void);
+static const AtkMisc *atk_misc = NULL;
 
-static void
-spi_atk_bridge_init_event_type_consts ()
-{
-  static gboolean done = FALSE;
-
-  if (done)
-    return;
-
-  atk_signal_children_changed = g_signal_lookup ("children_changed", 
-                                             ATK_TYPE_OBJECT);
-  atk_signal_text_changed = g_signal_lookup ("text_changed", 
-                                            ATK_TYPE_TEXT);
-  atk_signal_bounds_changed = g_signal_lookup ("bounds_changed", 
-                                             ATK_TYPE_COMPONENT);
-  atk_signal_active_descendant_changed = 
-         g_signal_lookup ("active_descendant_changed", 
-                         ATK_TYPE_OBJECT); 
-  atk_signal_link_selected = g_signal_lookup ("link_selected", 
-                                             ATK_TYPE_HYPERTEXT);
-  atk_signal_text_selection_changed = g_signal_lookup ("text_selection_changed", 
-                                             ATK_TYPE_TEXT);
-  done = TRUE;
-}
+/*static Display *bridge_display = NULL;*/
 
-static gboolean
-post_init (gpointer data)
+/*---------------------------------------------------------------------------*/
+
+/*
+ * Returns a 'canonicalized' value for DISPLAY,
+ * with the screen number stripped off if present.
+ *
+ */
+static const gchar *
+spi_display_name (void)
 {
-  during_init_shutdown = FALSE;
-  return FALSE;
+  static const char *canonical_display_name = NULL;
+  if (!canonical_display_name)
+    {
+      const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
+      if (!display_env)
+        {
+          display_env = g_getenv ("DISPLAY");
+          if (!display_env || !display_env[0])
+            canonical_display_name = ":0";
+          else
+            {
+              gchar *display_p, *screen_p;
+              canonical_display_name = g_strdup (display_env);
+              display_p = strrchr (canonical_display_name, ':');
+              screen_p = strrchr (canonical_display_name, '.');
+              if (screen_p && display_p && (screen_p > display_p))
+                {
+                  *screen_p = '\0';
+                }
+            }
+        }
+      else
+        {
+          canonical_display_name = display_env;
+        }
+    }
+  return canonical_display_name;
 }
 
-static DBusObjectPathVTable droute_vtable =
-{
-  NULL,
-  &droute_message,
-  NULL, NULL, NULL, NULL
-};
+/*---------------------------------------------------------------------------*/
 
-static gchar* atspi_dbus_name;
-static gboolean atspi_no_register; 
+/*
+ * Gets the IOR from the XDisplay.
+ * Not currently used in D-Bus version, but something similar
+ * may be employed in the future for accessing the registry daemon
+ * bus name.
+ */
 
-static GOptionEntry atspi_option_entries[] = 
+static DBusConnection *
+spi_atk_bridge_get_bus (void)
 {
-  {"atspi-dbus-name", 0, 0, G_OPTION_ARG_STRING, &atspi_dbus_name, "D-Bus bus name to register as", NULL},
-  {"atspi-no-register", 0, 0, G_OPTION_ARG_NONE, &atspi_no_register, "Do not register with Registry Daemon", NULL},
-  {NULL}
-};
+  Atom AT_SPI_BUS;
+  Atom actual_type;
+  Display *bridge_display;
+  int actual_format;
+  unsigned char *data = NULL;
+  unsigned long nitems;
+  unsigned long leftover;
 
-static SpiAppData *
-spi_app_init (AtkObject *root, gint *argc, gchar **argv[])
-{
-  GOptionContext *opt;
-  SpiAppData *ad = g_new0(SpiAppData, 1);
-  GError *err = NULL;
+  DBusConnection *bus = NULL;
   DBusError error;
-  int i;
-
-  opt = g_option_context_new(NULL);
-  g_option_context_add_main_entries(opt, atspi_option_entries, NULL);
-  g_option_context_set_ignore_unknown_options(opt, TRUE);
-  if (!g_option_context_parse(opt, argc, argv, &err))
-      g_warning("Option parsing failed: %s\n", err->message);
-
-  dbus_error_init(&error);
-  ad->root = root;
-  ad->droute.bus = dbus_bus_get(DBUS_BUS_SESSION, &error);
-
-  if (!ad->droute.bus)
-  {
-    g_warning("Couldn't connect to dbus: %s\n", error.message);
-    free(ad);
-    return NULL;
-  }
-  if (atspi_dbus_name != NULL && dbus_bus_request_name(ad->droute.bus, 
-                                                      atspi_dbus_name,
-                                                      0,
-                                                      &error))
-  {
-    g_print("\nRecieved D-Bus name - %s\n", atspi_dbus_name);
-  }
-  spi_register_tree_object(ad->droute.bus, &ad->droute, "/org/freedesktop/atspi/tree");
-  if (!dbus_connection_try_register_fallback (ad->droute.bus, 
-                                             "/org/freedesktop/atspi/accessible", 
-                                             &droute_vtable, 
-                                             &ad->droute, 
-                                             &error))
-  {
-    g_warning("Couldn't register droute.\n");
-    free(ad);
-    return NULL;
-  }
-
-  dbus_connection_setup_with_g_main(ad->droute.bus, g_main_context_default());
-
-  spi_dbus_initialize (&ad->droute);
-  return ad;
-}
-
-static int
-atk_bridge_init (gint *argc, gchar **argv[])
-{
-  const char *debug_env_string = g_getenv ("AT_SPI_DEBUG");
-  gchar *fname;
-  gboolean success = FALSE;
 
-  if (atk_bridge_initialized)
-    {
-      return 0;
-    }
-  atk_bridge_initialized = TRUE;
-  atk_bridge_pid = getpid ();
+  bridge_display = XOpenDisplay (spi_display_name ());
+  if (!bridge_display)
+    g_error ("AT_SPI: Could not get the display\n");
 
-  misc = atk_misc_get_instance();
+  AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
+  XGetWindowProperty (bridge_display,
+                      XDefaultRootWindow (bridge_display),
+                      AT_SPI_BUS, 0L,
+                      (long) BUFSIZ, False,
+                      (Atom) 31, &actual_type, &actual_format,
+                      &nitems, &leftover, &data);
 
-  if (g_getenv ("ATK_BRIDGE_REDIRECT_LOG"))
-    {
-      fname = g_strconcat ("/tmp/", g_get_prgname (), ".at-spi-log", NULL);
-      /* make sure we're not being redirected - security issue */
-      if (!g_file_test (fname, G_FILE_TEST_IS_SYMLINK))
-         freopen (fname, "w", stderr);
-      g_free (fname);
-    }
-
-  if (debug_env_string) 
-      _dbg = (int) g_ascii_strtod (debug_env_string, NULL);
-
-  /* Connect to dbus */
-  this_app = spi_app_init (atk_get_root (), argc, argv);
+  dbus_error_init (&error);
 
-  /*
-   * We only want to enable the bridge for top level
-   * applications, we detect bonobo components by seeing
-   * if they were activated with the intention of extracting
-   * an impl. by IID - very solid.
-   */
-#ifdef WITH_BONOBO
-  // TODO: Figure out if this is still needed
-  if (bonobo_activation_iid_get ())
-#else
-  if (0)
-#endif
-    {
-      DBG (1, g_message ("Found Bonobo component\n"));
-      g_signal_connect (atk_get_root (), 
-                        "children-changed::add",
-                        (GCallback) spi_atk_bridge_toplevel_added, 
-                        NULL);
-      g_signal_connect (atk_get_root (), 
-                        "children-changed::remove",
-                        (GCallback) spi_atk_bridge_toplevel_removed, 
-                        NULL);
-      /* in this case we redefine 'success' to mean 'registry is present' */
-      success = (spi_atk_bridge_get_registry () != NULL);
-    }
-  else
+  if (data == NULL)
     {
-      success = spi_atk_bridge_do_registration ();
-    }
-  /*
-   * we must emit events even if we are not registered as a
-   * full-fledged app; See bugzilla #400709.
-   */
-  if (success) 
-    {
-      spi_atk_register_event_listeners ();
-      spi_atk_bridge_init_event_type_consts ();
+      g_warning
+        ("AT-SPI: Accessibility bus not found - Using session bus.\n");
+      bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
+      if (!bus)
+        g_error ("AT-SPI: Couldn't connect to bus: %s\n", error.message);
     }
   else
     {
-      atk_bridge_initialized = FALSE;
+      bus = dbus_connection_open (data, &error);
+      if (!bus)
+        {
+          g_error ("AT-SPI: Couldn't connect to bus: %s\n", error.message);
+        }
+      else
+        {
+          if (!dbus_bus_register (bus, &error))
+            g_error ("AT-SPI: Couldn't register with bus: %s\n", error.message);
+        }
     }
-  g_idle_add (post_init, NULL);
 
-  return 0;
+  return bus;
 }
 
-static gboolean
-spi_atk_bridge_do_registration (void)
+static void
+set_reply (DBusPendingCall *pending, void *user_data)
 {
-  if (spi_atk_bridge_get_registry () == NULL)
-    {
-      g_warning ("Could not locate registry");
-      return FALSE;
-    }
-
-  /* Create the accessible application server object */
-  if (this_app == NULL)
-    this_app = spi_app_init (atk_get_root (), 0, NULL);
-
-  DBG (1, g_message ("About to register application\n"));
-
-  spi_atk_bridge_register_application (spi_atk_bridge_get_registry ());
-  
-  g_atexit (spi_atk_bridge_exit_func);
+    void **replyptr = (void **)user_data;
 
-  DBG (1, g_message ("Application registered & listening\n"));
-  return TRUE;
+    *replyptr = dbus_pending_call_steal_reply (pending);
 }
 
-static void
-spi_atk_bridge_toplevel_added (AtkObject *object,
-                               guint     index,
-                               AtkObject *child)
+static DBusMessage *
+send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, DBusError *error)
 {
-  if (toplevels == 0)
-    {
-      spi_atk_bridge_do_registration ();
-    }
-  toplevels++;
-}
+    DBusPendingCall *pending;
+    DBusMessage *reply = NULL;
 
-static void
-spi_atk_bridge_toplevel_removed (AtkObject *object,
-                                 guint     index,
-                                 AtkObject *child)
-{
-  toplevels--;
-  if (toplevels == 0)
+    if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
     {
-      deregister_application (this_app);
-      reinit_register_vars ();
+        return NULL;
     }
-  if (toplevels < 0)
+    dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
+    while (!reply)
     {
-      g_warning ("More toplevels removed than added\n");
-      toplevels = 0;
+      if (!dbus_connection_read_write_dispatch (bus, -1)) return NULL;
     }
+    return reply;
 }
+/*---------------------------------------------------------------------------*/
 
-static void
-spi_atk_bridge_register_application (const char *registry)
+static gboolean
+register_application (SpiBridge * app)
 {
   DBusMessage *message, *reply;
+  DBusMessageIter iter;
   DBusError error;
 
-  bridge_threads_leave ();
-  message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY, SPI_DBUS_PATH_REGISTRY, SPI_DBUS_INTERFACE_REGISTRY, "registerApplication");
   dbus_error_init (&error);
-  reply = dbus_connection_send_with_reply_and_block(this_app->droute.bus, message, 1000, &error);
-  if (error.message) g_warning (error.message);
-  if (reply) dbus_message_unref (reply);
-  if (message) dbus_message_unref (message);
-  bridge_threads_enter ();
-}
 
-/* 
- * Returns a 'canonicalized' value for DISPLAY,
- * with the screen number stripped off if present.
- */
-static const gchar*
-spi_display_name (void)
-{
-    static const char *canonical_display_name = NULL;
-    if (!canonical_display_name)
-      {
-        const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
-       if (!display_env)
-         {
-           display_env = g_getenv ("DISPLAY");
-           if (!display_env || !display_env[0]) 
-               canonical_display_name = ":0";
-           else
-             {
-               gchar *display_p, *screen_p;
-               canonical_display_name = g_strdup (display_env);
-               display_p = strrchr (canonical_display_name, ':');
-               screen_p = strrchr (canonical_display_name, '.');
-               if (screen_p && display_p && (screen_p > display_p))
-                 {
-                   *screen_p = '\0';
-                 }
-             }
-         }
-       else
-         {
-           canonical_display_name = display_env;
-         }
-      }
-    return canonical_display_name;
-}
+  message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+                                          SPI_DBUS_PATH_ROOT,
+                                          SPI_DBUS_INTERFACE_SOCKET,
+                                          "Embed");
 
-static     Display *bridge_display = NULL;
+  dbus_message_iter_init_append (message, &iter);
+  spi_object_append_reference (&iter, app->root);
+  
+  reply = send_and_allow_reentry (app->bus, message, &error);
 
-static gchar *
-spi_atk_bridge_get_registry_ior (void)
-{
-     
-     Atom AT_SPI_IOR;
-     Atom actual_type;
-     int actual_format;
-     unsigned char *data = NULL;  
-     unsigned long nitems;
-     unsigned long leftover;
-     if (!bridge_display) 
-       bridge_display = XOpenDisplay (spi_display_name ());
-
-     AT_SPI_IOR = XInternAtom (bridge_display, "AT_SPI_IOR", False); 
-     XGetWindowProperty(bridge_display, 
-                       XDefaultRootWindow (bridge_display),
-                       AT_SPI_IOR, 0L, 
-                       (long)BUFSIZ, False, 
-                       (Atom) 31, &actual_type, &actual_format,
-                       &nitems, &leftover, &data);
-     if (data == NULL)
-         g_warning (_("AT_SPI_REGISTRY was not started at session startup."));
-     
-     return (gchar *) data;
-     
-}
+  if (message)
+    dbus_message_unref (message);
 
+  if (reply)
+    {
+      DBusMessageIter iter, iter_struct;
+      gchar *app_name, *obj_path;
 
-static const char *
-spi_atk_bridge_get_registry (void)
-{
-  // TODO: check for registry dying, as the old code attempted to do
-  return "org.freedesktop.atspi.registry";
-}
+      if (strcmp (dbus_message_get_signature (reply), "(so)") != 0)
+        {
+          g_warning ("AT-SPI: Could not obtain desktop path or name\n");
+          return FALSE;
+        }
 
-static const char *
-spi_atk_bridge_get_dec (void)
-{
-  return "/dec";
-}
+      dbus_message_iter_init (reply, &iter);
+      dbus_message_iter_recurse (&iter, &iter_struct);
+      dbus_message_iter_get_basic (&iter_struct, &app_name);
+      dbus_message_iter_next (&iter_struct);
+      dbus_message_iter_get_basic (&iter_struct, &obj_path);
 
-int
-gtk_module_init (gint *argc, gchar **argv[])
-{
-       //printf("Pointer to argc %x %x\n", (short) ((argc && 0xffff0000) >> 16), (short) (argc && 0xffff));
-       return atk_bridge_init (argc, argv);
+      app->desktop_name = g_strdup (app_name);
+      app->desktop_path = g_strdup (obj_path);
+    }
+  else
+    {
+      g_warning ("AT-SPI: Could not embed inside desktop: %s\n", error.message);
+      return FALSE;
+    }
+  return TRUE;
 }
 
-static void
-add_signal_listener (const char *signal_name)
-{
-  guint id;
-
-  id = atk_add_global_event_listener (
-    spi_atk_bridge_signal_listener, signal_name);
-
-  g_array_append_val (listener_ids, id);
-}
+/*---------------------------------------------------------------------------*/
 
 static void
-spi_atk_register_event_listeners (void)
+deregister_application (SpiBridge * app)
 {
-  /*
-   * kludge to make sure the Atk interface types are registered, otherwise
-   * the AtkText signal handlers below won't get registered
-   */
-  guint      id;
-  GObject   *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
-  AtkObject *bo = atk_no_op_object_new (ao);
+  DBusMessage *message;
+  DBusMessageIter iter;
+  DBusError error;
+  const char *uname;
 
+  dbus_error_init (&error);
 
-  if (atk_listeners_registered) 
-    {
-      g_object_unref (G_OBJECT (bo));
-      g_object_unref (ao);
-      return;
-    }
+  message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+                                          SPI_DBUS_PATH_REGISTRY,
+                                          SPI_DBUS_INTERFACE_REGISTRY,
+                                          "DeregisterApplication");
+  dbus_message_set_no_reply (message, TRUE);
 
-  atk_listeners_registered = TRUE;
-
-  /* Register for focus event notifications, and register app with central registry  */
-
-  listener_ids = g_array_sized_new (FALSE, TRUE, sizeof (guint), 16);
-
-  atk_bridge_focus_tracker_id = atk_add_focus_tracker (spi_atk_bridge_focus_tracker);
-
-  id = atk_add_global_event_listener (spi_atk_bridge_property_event_listener,
-                                     "Gtk:AtkObject:property-change");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:create");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:destroy");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:minimize");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:maximize");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:restore");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:activate");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
-                                     "window:deactivate");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_document_event_listener,
-                                     "Gtk:AtkDocument:load-complete");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_document_event_listener,
-                                     "Gtk:AtkDocument:reload");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_document_event_listener,
-                                     "Gtk:AtkDocument:load-stopped");
-  g_array_append_val (listener_ids, id);
-  id = atk_add_global_event_listener (spi_atk_bridge_state_event_listener,
-                                     "Gtk:AtkObject:state-change");
-  g_array_append_val (listener_ids, id);
-
-  add_signal_listener ("Gtk:AtkObject:children-changed");
-  add_signal_listener ("Gtk:AtkObject:visible-data-changed");
-  add_signal_listener ("Gtk:AtkObject:active-descendant-changed");
-  add_signal_listener ("Gtk:AtkComponent:bounds-changed");
-  add_signal_listener ("Gtk:AtkSelection:selection-changed");
-  add_signal_listener ("Gtk:AtkText:text-selection-changed");
-  add_signal_listener ("Gtk:AtkText:text-changed");
-  add_signal_listener ("Gtk:AtkText:text-caret-moved");
-  add_signal_listener ("Gtk:AtkTable:row-inserted");
-  add_signal_listener ("Gtk:AtkTable:row-reordered");
-  add_signal_listener ("Gtk:AtkTable:row-deleted");
-  add_signal_listener ("Gtk:AtkTable:column-inserted");
-  add_signal_listener ("Gtk:AtkTable:column-reordered");
-  add_signal_listener ("Gtk:AtkTable:column-deleted");
-  add_signal_listener ("Gtk:AtkTable:model-changed");
-  add_signal_listener ("Gtk:AtkHypertext:link-selected");
-/*
- * May add the following listeners to implement preemptive key listening for GTK+
- *
- * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-press-event");
- * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-release-event");
- */
-  atk_bridge_key_event_listener_id = atk_add_key_event_listener (
-    spi_atk_bridge_key_listener, NULL);
-  
-  g_object_unref (G_OBJECT (bo));
-  g_object_unref (ao);
-}
+  uname = dbus_bus_get_unique_name (app->bus);
 
-static void
-deregister_application (SpiAppData *app)
-{
-  const char *registry = spi_atk_bridge_get_registry ();
-  bridge_threads_leave ();
-  // todo: deregister
-  bridge_threads_enter ();
+  dbus_message_iter_init_append (message, &iter);
+  dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &uname);
+  dbus_connection_send (app->bus, message, NULL);
+  if (message)
+    dbus_message_unref (message);
 }
 
+/*---------------------------------------------------------------------------*/
+
 static void
-spi_atk_bridge_exit_func (void)
+exit_func (void)
 {
-  SpiAppData *app = (SpiAppData *) this_app;
-
-  DBG (1, g_message ("exiting bridge\n"));
-
-  if (!app)
+  if (!spi_global_app_data)
     {
       return;
     }
-  if (atk_bridge_pid != getpid ())
-    {
-      _exit (0);
-    }
 
-  during_init_shutdown = TRUE;
-  exiting = TRUE;
-  /*
-   * Check whether we still have windows which have not been deleted.
-   */
   spi_atk_tidy_windows ();
-  /*
-   *  FIXME: this may be incorrect for apps that do their own bonobo
-   *  shutdown, until we can explicitly shutdown to get the ordering
-   *  right.
-   */
-  if (!registry_died)
-    deregister_application (this_app);
-  this_app = NULL;
-  DBG (1, g_message ("bridge exit func complete.\n"));
+  spi_atk_deregister_event_listeners ();
+  deregister_application (spi_global_app_data);
 
-  if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
-    {
-    }
+  g_free (spi_global_app_data);
+  spi_global_app_data = NULL;
+
+  /* Not currently creating an XDisplay */
+#if 0
   if (bridge_display)
     XCloseDisplay (bridge_display);
+#endif
 }
 
-void
-gnome_accessibility_module_init (void)
-{
-  atk_bridge_init (0, NULL);
+/*---------------------------------------------------------------------------*/
 
-  if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
-    {
-       g_print("Atk Accessibility bridge initialized\n");
-    }
-}
+static AtkPlugClass *plug_class;
+static AtkSocketClass *socket_class;
 
-void
-gnome_accessibility_module_shutdown (void)
+static gchar *
+get_plug_id (AtkPlug * plug)
 {
-  int     i;
-  GArray *ids = listener_ids;
-  
-  if (!atk_bridge_initialized)
-    {
-      return;
-    }
-  during_init_shutdown = TRUE;
-  atk_bridge_initialized = FALSE;
-
-  if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
-    {
-       g_print("Atk Accessibility bridge shutdown\n");
-    }
-
-  listener_ids = NULL;
-  if (atk_bridge_focus_tracker_id)
-        atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
-  
-  for (i = 0; ids && i < ids->len; i++)
-    {
-          atk_remove_global_event_listener (g_array_index (ids, guint, i));
-    }
-  
-  if (atk_bridge_key_event_listener_id)
-          atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
+  const char *uname = dbus_bus_get_unique_name (spi_global_app_data->bus);
+  gchar *path;
+  GString *str = g_string_new (NULL);
 
-  deregister_application (this_app);
-  this_app = NULL;
-
-  misc = NULL;
-}
-
-static void emit(AtkObject *object, const char *name, const char *detail, dbus_int32_t detail1, dbus_int32_t detail2, int type, const void *val)
-{
-  DBusMessage *sig;
-  char *path = spi_dbus_get_path(object);
-  DBusMessageIter iter, sub;
-  const char *type_as_string = NULL;
-  dbus_int32_t dummy = 0;
-
-  spi_dbus_update_cache(&this_app->droute);
-  if (type == DBUS_TYPE_OBJECT_PATH)
-  {
-    type_as_string = "o";
-    if (!val) val = "";
-  }
-  else if (type == DBUS_TYPE_STRING) type_as_string = "s";
-  else if (type == DBUS_TYPE_INT32) type_as_string = "i";
-  else if (type == DBUS_TYPE_UINT32) type_as_string = "u";
-  else if (type == DBUS_TYPE_INVALID)
-  {
-    type = DBUS_TYPE_UINT32;
-    type_as_string = "u";
-    if (!val) val = &dummy;
-  }
-  else
-  {
-    g_warning("Unknown type %d in property change signal", type);
-  }
-  sig = dbus_message_new_signal(path, SPI_DBUS_INTERFACE_ACCESSIBLE, name);
-  dbus_message_iter_init_append(sig, &iter);
-  if (!detail) detail = "";
-  dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &detail);
-  dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail1);
-  dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail2);
-  dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT, type_as_string, &sub);
-  dbus_message_iter_append_basic(&sub, type, &val);
-  dbus_message_iter_close_container(&iter, &sub);
-printf("emit: %s %s\n", name, detail);
-  dbus_connection_send(this_app->droute.bus, sig, NULL);
-  g_free(path);
-  dbus_message_unref(sig);
+  path = spi_register_object_to_path (spi_global_register, G_OBJECT (plug));
+  g_string_printf (str, "%s:%s", uname, path);
+  g_free (path);
+  return g_string_free (str, FALSE);
 }
 
 static void
-spi_atk_bridge_focus_tracker (AtkObject *object)
-{
-  emit(object, "focus", NULL, 0, 0, DBUS_TYPE_INVALID, NULL);
-}
-
-static void emit_rect(AtkObject *object, const char *name, const char *detail, AtkRectangle *rect)
-{
-  DBusMessage *sig;
-  char *path = spi_dbus_get_path(object);
-  DBusMessageIter iter, iter_variant, sub;
-  dbus_uint32_t x, y, width, height;
-  dbus_int32_t dummy = 0;
-
-  spi_dbus_update_cache(&this_app->droute);
-  x = rect->x;
-  y = rect->y;
-  width = rect->width;
-  height = rect->height;
-  sig = dbus_message_new_signal(path, SPI_DBUS_INTERFACE_ACCESSIBLE, name);
-  if (!detail) detail = "";
-  if (sig)
-    {
-      dbus_message_iter_init_append (sig, &iter);
-      dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &detail);
-      dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &dummy);
-      dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &dummy);
-      if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "(iiii)", &iter_variant))
-       goto oom;
-      if (!dbus_message_iter_open_container (&iter_variant, DBUS_TYPE_STRUCT, NULL, &sub))
-       goto oom;
-      dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &x);
-      dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &y);
-      dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &width);
-      dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &height);
-      if (!dbus_message_iter_close_container (&iter_variant, &sub))
-       goto oom;
-      if (!dbus_message_iter_close_container (&iter, &iter_variant))
-       goto oom;
-    }
-  dbus_connection_send(this_app->droute.bus, sig, NULL);
-oom:
-  g_free(path);
-  dbus_message_unref(sig);
-}
-
-static const char *PropertyChange = "object_property_change";
-
-static gboolean
-spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
-                                       guint n_param_values,
-                                       const GValue *param_values,
-                                       gpointer data)
+socket_embed_hook (AtkSocket * socket, gchar * plug_id)
 {
-  AtkPropertyValues *values;
-  AtkObject *obj;
-  const gchar *prop_name;
-  const gchar *sp = NULL;
-  AtkObject *ao;
-  char *s_ao = NULL;
-  gint i;
-  const gchar *name = NULL;
-
-#ifdef SPI_BRIDGE_DEBUG
-  GSignalQuery signal_query;
-  const gchar *signame;
-  const gchar *s, *s2;
-  
-  g_signal_query (signal_hint->signal_id, &signal_query);
-  signame = signal_query.signal_name;
-
-  s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
-  s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
-  values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
-  DBG (2, g_message ("Received (property) signal %s:%s:%s from object %s (gail %s)\n",
-          g_type_name (signal_query.itype), signame, values->property_name, s, s2));
-  
-#endif
-
-  obj = g_value_get_object (param_values + 0);
-  name = atk_object_get_name (obj);
-  values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
+  AtkObject *accessible = ATK_OBJECT(socket);
+  gchar *plug_name, *plug_path;
 
-  prop_name = values->property_name;
-  if (strcmp (prop_name, "accessible-name") == 0)
-    {
-      spi_dbus_notify_change(obj, FALSE, &this_app->droute);
-    }
-  else if (strcmp (prop_name, "accessible-description") == 0)
-    {
-      spi_dbus_notify_change(obj, FALSE, &this_app->droute);
-    }
-  else if (strcmp (prop_name, "accessible-parent") == 0)
-    {
-      spi_dbus_notify_change(obj, FALSE, &this_app->droute);
-    }
-  else if (strcmp (prop_name, "accessible-table-summary") == 0)
-    {
-      ao = atk_table_get_summary (ATK_TABLE (obj));
-      s_ao = spi_dbus_get_path(ao);
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
-    }
-  else if (strcmp (prop_name, "accessible-table-column-header") == 0)
-    {
-      i = g_value_get_int (&(values->new_value));
-      ao = atk_table_get_column_header (ATK_TABLE (obj), i);
-      s_ao = spi_dbus_get_path(ao);
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
-    }
-  else if (strcmp (prop_name, "accessible-table-row-header") == 0)
-    {
-      i = g_value_get_int (&(values->new_value));
-      ao = atk_table_get_row_header (ATK_TABLE (obj), i);
-      s_ao = spi_dbus_get_path(ao);
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
-    }
-  else if (strcmp (prop_name, "accessible-table-row-description") == 0)
-    {
-      i = g_value_get_int (&(values->new_value));
-      sp = atk_table_get_row_description (ATK_TABLE (obj), i);
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_STRING, sp);
-    }
-  else if (strcmp (prop_name, "accessible-table-column-description") == 0)
+  /* Force registration */
+  gchar *path = spi_register_object_to_path (spi_global_register, G_OBJECT (accessible));
+  /* Let the plug know that it has been embedded */
+  plug_name = g_strdup (plug_id);
+  if (!plug_name)
     {
-      i = g_value_get_int (&(values->new_value));
-      sp = atk_table_get_column_description (ATK_TABLE(obj), i);
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_STRING, sp);
+      g_free (path);
+      return;
     }
-  else if (strcmp (prop_name, "accessible-table-caption-object") == 0)
+  plug_path = g_utf8_strchr (plug_name + 1, -1, ':');
+  if (plug_path)
     {
-      ao = atk_table_get_caption (ATK_TABLE(obj));
-      sp = atk_object_get_name (ao);
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_STRING, sp);
+      DBusMessage *message;
+      *(plug_path++) = '\0';
+      message = dbus_message_new_method_call (plug_name, plug_path, SPI_DBUS_INTERFACE_SOCKET, "Embedded");
+      dbus_message_append_args (message, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID);
+      dbus_connection_send (spi_global_app_data->bus, message, NULL);
     }
-  else
-    {
-      emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_INVALID, NULL);
-    }
-  if (s_ao) g_free(s_ao);
-  return TRUE;
-}
-
-static gboolean
-spi_atk_bridge_state_event_listener (GSignalInvocationHint *signal_hint,
-                                    guint n_param_values,
-                                    const GValue *param_values,
-                                    gpointer data)
-{
-  AtkObject *obj;
-  gchar *property_name;
-  unsigned long detail1;
-#ifdef SPI_BRIDGE_DEBUG
-  GSignalQuery signal_query;
-  const gchar *name;
-  
-  g_signal_query (signal_hint->signal_id, &signal_query);
-  name = signal_query.signal_name;
-  fprintf (stderr, "Received (state) signal %s:%s\n",
-          g_type_name (signal_query.itype), name);
-#endif
-
-  obj = ATK_OBJECT(g_value_get_object (param_values + 0));
-  property_name = g_strdup (g_value_get_string (param_values + 1));
-  /* Ignore defunct for now; we'll send a tree update to remove it when
-     the object goes away */
-  /* Also ignore state changes for objects not yet broadcast */
-  if ((property_name && !strcmp(property_name, "defunct")) ||
-      !spi_dbus_object_is_known(obj))
-  {
-    g_free(property_name);
-    return TRUE;
-  }
-  detail1 = (g_value_get_boolean (param_values + 2))
-    ? 1 : 0;
-  emit(obj, "object_state_changed", property_name, detail1, 0, DBUS_TYPE_INVALID, NULL);
-  g_free (property_name);
-  return TRUE;
+  g_free (plug_name);
+  g_free (path);
 }
 
 static void
-spi_init_keystroke_from_atk_key_event (Accessibility_DeviceEvent  *keystroke,
-                                      AtkKeyEventStruct          *event)
+install_plug_hooks ()
 {
-#ifdef SPI_DEBUG
-  if (event)
-    {
-      g_print ("event %c (%d)\n", (int) event->keyval, (int) event->keycode);
-    }
-  else
-#endif
-  if (!event)
-    { /* this doesn't really need translating */
-      g_print (_("WARNING: NULL key event reported."));
-    }
-  
-  keystroke->id        = (dbus_int32_t) event->keyval;
-  keystroke->hw_code   = (dbus_int16_t) event->keycode;
-  keystroke->timestamp = (dbus_uint32_t) event->timestamp;
-  keystroke->modifiers = (dbus_uint16_t) (event->state & 0xFFFF);
-  if (event->string)
-    {
-      gunichar c;
+  gpointer data;
 
-      keystroke->event_string = g_strdup (event->string);
-      c = g_utf8_get_char_validated (event->string, -1);
-      if (c > 0 && g_unichar_isprint (c))
-        keystroke->is_text = TRUE;
-      else
-        keystroke->is_text = FALSE;
-    }
-  else
-    {
-      keystroke->event_string = g_strdup ("");
-      keystroke->is_text = FALSE;
-    }
-  switch (event->type)
-    {
-    case (ATK_KEY_EVENT_PRESS):
-      keystroke->type = Accessibility_KEY_PRESSED_EVENT;
-      break;
-    case (ATK_KEY_EVENT_RELEASE):
-      keystroke->type = Accessibility_KEY_RELEASED_EVENT;
-      break;
-    default:
-      keystroke->type = 0;
-      break;
-    }
-#if 0  
-  g_print ("key_event type %d; val=%d code=%d modifiers=%x name=%s is_text=%d, time=%lx\n",
-          (int) keystroke->type, (int) keystroke->id, (int) keystroke->hw_code,
-          (int) keystroke->modifiers,
-          keystroke->event_string, (int) keystroke->is_text, (unsigned long) keystroke->timestamp);
-#endif
+  data = g_type_class_ref (ATK_TYPE_PLUG);
+  plug_class = ATK_PLUG_CLASS (data);
+  data = g_type_class_ref (ATK_TYPE_SOCKET);
+  socket_class = ATK_SOCKET_CLASS (data);
+  plug_class->get_object_id = get_plug_id;
+  socket_class->embed = socket_embed_hook;
 }
 
-static gboolean Accessibility_DeviceEventController_notifyListenersSync(const Accessibility_DeviceEvent *key_event)
-{
-  DBusMessage *message = dbus_message_new_method_call(SPI_DBUS_NAME_REGISTRY, SPI_DBUS_PATH_REGISTRY, SPI_DBUS_INTERFACE_DEC, "notifyListenersSync");
-  DBusError error;
-  dbus_bool_t consumed = FALSE;
+gchar *atspi_dbus_name = NULL;
+static gboolean atspi_no_register = FALSE;
 
-  dbus_error_init(&error);
-  if (spi_dbus_marshal_deviceEvent(message, key_event))
-  {
-    DBusMessage *reply = dbus_connection_send_with_reply_and_block(this_app->droute.bus, message, 1000, &error);
-    if (reply)
-    {
-      DBusError error;
-      dbus_error_init(&error);
-      dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
-      dbus_message_unref(reply);
-    }
-  }
-  dbus_message_unref(message);
-  return consumed;
-}
+static GOptionEntry atspi_option_entries[] = {
+  {"atspi-dbus-name", 0, 0, G_OPTION_ARG_STRING, &atspi_dbus_name,
+   "D-Bus bus name to register as", NULL},
+  {"atspi-no-register", 0, 0, G_OPTION_ARG_NONE, &atspi_no_register,
+   "Do not register with Registry Daemon", NULL},
+  {NULL}
+};
 
-static gint
-spi_atk_bridge_key_listener (AtkKeyEventStruct *event, gpointer data)
+/*
+ * spi_app_init
+ *
+ * The following needs to be initialized.
+ *
+ * - DRoute for routing message to their accessible objects.
+ * - Event handlers for emmitting signals on specific ATK events.
+ * - Application registration with the AT-SPI registry.
+ *
+ */
+static int
+adaptor_init (gint * argc, gchar ** argv[])
 {
-  gboolean             result;
-  Accessibility_DeviceEvent key_event;
-
-  spi_init_keystroke_from_atk_key_event (&key_event, event);
-
-  bridge_threads_leave ();
-  result = Accessibility_DeviceEventController_notifyListenersSync (&key_event);
-  bridge_threads_enter ();
+  GOptionContext *opt;
+  GError *err = NULL;
+  DBusError error;
+  DBusConnection *bus;
+  AtkObject *root;
+  gchar *introspection_directory;
+  static gboolean inited = FALSE;
 
-  if (key_event.event_string) g_free (key_event.event_string);
+  if (inited)
+    return 0;
 
-  return result;
-}
+  inited = TRUE;
 
-static gboolean
-spi_atk_bridge_signal_listener (GSignalInvocationHint *signal_hint,
-                               guint n_param_values,
-                               const GValue *param_values,
-                               gpointer data)
-{
-  AtkObject *obj;
-  GSignalQuery signal_query;
-  const gchar *name;
-  const gchar *detail = NULL;
-  char *sp = NULL;
-  AtkObject *ao;
-  gint detail1 = 0, detail2 = 0;
-  char *s_ao = NULL;
-  gchar *sig_name;
-  char *p;
-#ifdef SPI_BRIDGE_DEBUG
-  const gchar *s, *s2;
-#endif 
-  
-  g_signal_query (signal_hint->signal_id, &signal_query);
-
-  name = signal_query.signal_name;
-  if (signal_hint->detail)
-  {
-    detail = g_quark_to_string (signal_hint->detail);
-  }
-  sig_name = g_strdup_printf("object_%s", name);
-  while ((p = strchr(sig_name, '-')) != NULL) *p = '_';
-
-#ifdef SPI_BRIDGE_DEBUG
-  s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
-  s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
-  fprintf (stderr, "Received signal %s:%s detail: %s from object %s (gail %s)\n",
-          g_type_name (signal_query.itype), name, 
-          detail ? detail : "<NULL>", s ? s : "<NULL>" , s2);
-#endif
-  
-  obj = ATK_OBJECT(g_value_get_object (param_values + 0));
+  DRoutePath *treepath, *accpath;
 
-  if (signal_query.signal_id == atk_signal_active_descendant_changed)
-    {
-      gpointer child = g_value_get_pointer (param_values + 1);
+  root = atk_get_root ();
+  g_return_val_if_fail (root, 0);
 
-      g_return_val_if_fail (ATK_IS_OBJECT (child), TRUE);
+  /* Parse command line options */
+  opt = g_option_context_new (NULL);
+  g_option_context_add_main_entries (opt, atspi_option_entries, NULL);
+  g_option_context_set_ignore_unknown_options (opt, TRUE);
+  if (!g_option_context_parse (opt, argc, argv, &err))
+    g_warning ("AT-SPI Option parsing failed: %s\n", err->message);
 
-      ao = ATK_OBJECT (child);
+  /* Allocate global data and do ATK initializations */
+  spi_global_app_data = g_new0 (SpiBridge, 1);
+  atk_misc = atk_misc_get_instance ();
+  spi_global_app_data->root = g_object_ref (root);
 
-      detail1 = atk_object_get_index_in_parent (ao);
-      s_ao = spi_dbus_get_path(child);
-      emit(obj, sig_name, detail, detail1, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
-      g_free(s_ao);
-    }
-  else if (signal_query.signal_id == atk_signal_link_selected)
+  /* Set up D-Bus connection and register bus name */
+  dbus_error_init (&error);
+  spi_global_app_data->bus = spi_atk_bridge_get_bus ();
+  if (!spi_global_app_data->bus)
     {
-      if (G_VALUE_TYPE (param_values + 1) == G_TYPE_INT)
-        detail1 = g_value_get_int (param_values + 1);
-      emit(obj, sig_name, detail, detail1, 0, DBUS_TYPE_INVALID, NULL);
+      g_free (spi_global_app_data);
+      spi_global_app_data = NULL;
+      return 0;
     }
-  else if (signal_query.signal_id == atk_signal_bounds_changed)
-    {
-      AtkRectangle *atk_rect = NULL;
 
-      if (G_VALUE_HOLDS_BOXED (param_values + 1))
-         atk_rect = g_value_get_boxed (param_values + 1);
-      emit_rect(obj, sig_name, detail, atk_rect);
-    }
-  else if ((signal_query.signal_id == atk_signal_children_changed) && obj)
+  if (atspi_dbus_name != NULL)
     {
-      spi_dbus_notify_change(obj, FALSE, &this_app->droute);
-    }
-  else
-    {
-      if (n_param_values >= 2)
+      if (dbus_bus_request_name
+          (spi_global_app_data->bus, atspi_dbus_name, 0, &error))
         {
-          if (G_VALUE_TYPE (param_values + 1) == G_TYPE_INT)
-            detail1 = g_value_get_int (param_values + 1);
-          if (n_param_values >= 3)
-            {
-              if (G_VALUE_TYPE (param_values + 2) == G_TYPE_INT)
-                detail2 = g_value_get_int (param_values + 2);
-            }
-        }
-
-      if (signal_query.signal_id == atk_signal_text_changed)
-        {
-          sp = atk_text_get_text (ATK_TEXT (obj),
-                                 detail1,
-                                 detail1+detail2);
-          emit(obj, sig_name, detail, detail1, detail2, DBUS_TYPE_STRING, sp);
-        }
-      else if (signal_query.signal_id == atk_signal_text_selection_changed)
-        {
-          /* Return NULL as the selected string */
-          emit(obj, sig_name, detail, detail1, detail2, DBUS_TYPE_STRING, "");
+          g_print ("AT-SPI Recieved D-Bus name - %s\n", atspi_dbus_name);
         }
       else
         {
-          emit(obj, sig_name, detail, 0, 0, DBUS_TYPE_INVALID, NULL);
+          g_print
+            ("AT-SPI D-Bus name requested but could not be allocated - %s\n",
+             atspi_dbus_name);
         }
     }
 
-  if (sp) 
-    g_free (sp);
+  dbus_connection_setup_with_g_main (spi_global_app_data->bus,
+                                     g_main_context_default ());
 
-  if (s_ao)
-     g_free (s_ao);
-  g_free(sig_name);
+  /* Hook our plug-and socket functions */
+  install_plug_hooks ();
 
-  return TRUE;
-}
+  /* 
+   * Create the leasing, register and cache objects.
+   * The order is important here, the cache depends on the
+   * register object.
+   */
+  spi_global_register = g_object_new (SPI_REGISTER_TYPE, NULL);
+  spi_global_leasing  = g_object_new (SPI_LEASING_TYPE, NULL);
+  spi_global_cache    = g_object_new (SPI_CACHE_TYPE, NULL);
 
-static gboolean
-spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
-                                     guint n_param_values,
-                                     const GValue *param_values,
-                                     gpointer data)
-{
-  AtkObject *obj;
-  GSignalQuery signal_query;
-  const gchar *name, *s;
-#ifdef SPI_BRIDGE_DEBUG
-  const gchar *s2;
-#endif
-  
-  g_signal_query (signal_hint->signal_id, &signal_query);
+  /* Register droute for routing AT-SPI messages */
+  spi_global_app_data->droute =
+    droute_new (spi_global_app_data->bus);
 
-  name = signal_query.signal_name;
-  gchar *sig_name;
+  treepath = droute_add_one (spi_global_app_data->droute,
+                             "/org/a11y/atspi/cache", spi_global_cache);
 
-#ifdef SPI_BRIDGE_DEBUG
-  s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
-  s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
-  fprintf (stderr, "Received signal %s:%s from object %s (gail %s)\n",
-          g_type_name (signal_query.itype), name, s ? s : "<NULL>" , s2);
-#endif
-  
-  obj = ATK_OBJECT(g_value_get_object (param_values + 0));
+  if (!treepath)
+    {
+      g_warning ("atk-bridge: Error in droute_add_one().  Already running?");
+      return 0;
+    }
 
-  s = atk_object_get_name (obj);
-  sig_name = g_strdup_printf("window_%s", name);
-  emit(obj, sig_name, NULL, 0, 0, DBUS_TYPE_STRING, s);
-  g_free(sig_name);
+  accpath = droute_add_many (spi_global_app_data->droute,
+                             "/org/a11y/atspi/accessible",
+                             NULL,
+                             (DRouteGetDatumFunction)
+                             spi_global_register_path_to_object);
+
+
+  /* Register all interfaces with droute and set up application accessible db */
+  spi_initialize_cache (treepath);
+  spi_initialize_accessible (accpath);
+  spi_initialize_application (accpath);
+  spi_initialize_action (accpath);
+  spi_initialize_collection (accpath);
+  spi_initialize_component (accpath);
+  spi_initialize_document (accpath);
+  spi_initialize_editabletext (accpath);
+  spi_initialize_hyperlink (accpath);
+  spi_initialize_hypertext (accpath);
+  spi_initialize_image (accpath);
+  spi_initialize_selection (accpath);
+  spi_initialize_socket (accpath);
+  spi_initialize_table (accpath);
+  spi_initialize_text (accpath);
+  spi_initialize_value (accpath);
+
+  /* Register methods to send D-Bus signals on certain ATK events */
+  spi_atk_register_event_listeners ();
+
+  /* Register this app by sending a signal out to AT-SPI registry daemon */
+  if (!atspi_no_register && (!root || !ATK_IS_PLUG (root)))
+    register_application (spi_global_app_data);
+
+  g_atexit (exit_func);
 
-  return TRUE;
+  return 0;
 }
 
-static gboolean
-spi_atk_bridge_document_event_listener (GSignalInvocationHint *signal_hint,
-                                      guint n_param_values,
-                                      const GValue *param_values,
-                                      gpointer data)
-{
-  AtkObject *obj;
-  GSignalQuery signal_query;
-  const gchar *name, *s;
-  gchar *sig_name;
-#ifdef SPI_BRIDGE_DEBUG
-  const gchar *s2;
-#endif
-
-  g_signal_query (signal_hint->signal_id, &signal_query);
+/*---------------------------------------------------------------------------*/
 
-  name = signal_query.signal_name;
-
-#ifdef SPI_BRIDGE_DEBUG
-  s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
-  s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
-  fprintf (stderr, "Received signal %s:%s from object %s (gail %s)\n",
-           g_type_name (signal_query.itype), name, s ? s : "<NULL>" , s2);
-#endif
-
-  obj = ATK_OBJECT(g_value_get_object (param_values + 0));
+int
+gtk_module_init (gint * argc, gchar ** argv[])
+{
+  const gchar *load_bridge = g_getenv ("NO_AT_BRIDGE");
 
-  s = atk_object_get_name (obj);
-  sig_name = g_strdup_printf("document_%s", name);
-  emit(obj, sig_name, NULL, 0, 0, DBUS_TYPE_STRING, s);
-  g_free(sig_name);
-  return TRUE;
+  if (!load_bridge || g_ascii_strtod (load_bridge, NULL) == 0)
+    {
+      return adaptor_init (argc, argv);
+    }
+  return 0;
 }
 
-static void
-spi_atk_tidy_windows (void)
+void
+gnome_accessibility_module_init (void)
 {
-  AtkObject *root;
-  gint n_children;
-  gint i;
+  const gchar *load_bridge = g_getenv ("NO_AT_BRIDGE");
 
-  root = atk_get_root ();
-  n_children = atk_object_get_n_accessible_children (root);
-  for (i = 0; i < n_children; i++)
+  if (!load_bridge || g_ascii_strtod (load_bridge, NULL) == 0)
     {
-      AtkObject *child;
-      AtkStateSet *stateset;
-      const gchar *name;
-     
-      child = atk_object_ref_accessible_child (root, i);
-      stateset = atk_object_ref_state_set (child);
-      
-      name = atk_object_get_name (child);
-      if (atk_state_set_contains_state (stateset, ATK_STATE_ACTIVE))
+      adaptor_init (NULL, NULL);
+
+      if (g_getenv ("AT_SPI_DEBUG"))
         {
-         emit(child, "window:deactivate", NULL, 0, 0, DBUS_TYPE_STRING, name);
+          g_print ("Atk Accessibility bridge initialized\n");
         }
-      g_object_unref (stateset);
-
-      emit(child, "window:destroy", NULL, 0, 0, DBUS_TYPE_STRING, name);
-      g_object_unref (child);
     }
 }
 
-static void
-reinit_register_vars (void)
+void
+gnome_accessibility_module_shutdown (void)
 {
-  registry = NULL;
-  device_event_controller = NULL;
-  this_app = NULL;
+  spi_atk_deregister_event_listeners ();
+  exit_func ();
 }
+
+/*END------------------------------------------------------------------------*/