2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2002 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
7 * Copyright 2010, 2011 Novell, Inc.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
27 * Basic SPI initialization and event loop function prototypes
31 #include "atspi-private.h"
35 #include "atspi-gmain.h"
39 static void handle_get_items (DBusPendingCall *pending, void *user_data);
41 static DBusConnection *bus = NULL;
42 static GHashTable *live_refs = NULL;
43 static gint method_call_timeout = 800;
44 static gint app_startup_time = 15000;
45 static gboolean allow_sync = TRUE;
47 GMainLoop *atspi_main_loop;
48 GMainContext *atspi_main_context;
49 gboolean atspi_no_cache;
51 const char *atspi_path_dec = ATSPI_DBUS_PATH_DEC;
52 const char *atspi_path_registry = ATSPI_DBUS_PATH_REGISTRY;
53 const char *atspi_path_root = ATSPI_DBUS_PATH_ROOT;
54 const char *atspi_bus_registry = ATSPI_DBUS_NAME_REGISTRY;
55 const char *atspi_interface_accessible = ATSPI_DBUS_INTERFACE_ACCESSIBLE;
56 const char *atspi_interface_action = ATSPI_DBUS_INTERFACE_ACTION;
57 const char *atspi_interface_application = ATSPI_DBUS_INTERFACE_APPLICATION;
58 const char *atspi_interface_collection = ATSPI_DBUS_INTERFACE_COLLECTION;
59 const char *atspi_interface_component = ATSPI_DBUS_INTERFACE_COMPONENT;
60 const char *atspi_interface_dec = ATSPI_DBUS_INTERFACE_DEC;
61 const char *atspi_interface_device_event_listener = ATSPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
62 const char *atspi_interface_document = ATSPI_DBUS_INTERFACE_DOCUMENT;
63 const char *atspi_interface_editable_text = ATSPI_DBUS_INTERFACE_EDITABLE_TEXT;
64 const char *atspi_interface_event_object = ATSPI_DBUS_INTERFACE_EVENT_OBJECT;
65 const char *atspi_interface_hyperlink = ATSPI_DBUS_INTERFACE_HYPERLINK;
66 const char *atspi_interface_hypertext = ATSPI_DBUS_INTERFACE_HYPERTEXT;
67 const char *atspi_interface_image = ATSPI_DBUS_INTERFACE_IMAGE;
68 const char *atspi_interface_registry = ATSPI_DBUS_INTERFACE_REGISTRY;
69 const char *atspi_interface_selection = ATSPI_DBUS_INTERFACE_SELECTION;
70 const char *atspi_interface_table = ATSPI_DBUS_INTERFACE_TABLE;
71 const char *atspi_interface_table_cell = ATSPI_DBUS_INTERFACE_TABLE_CELL;
72 const char *atspi_interface_text = ATSPI_DBUS_INTERFACE_TEXT;
73 const char *atspi_interface_cache = ATSPI_DBUS_INTERFACE_CACHE;
74 const char *atspi_interface_value = ATSPI_DBUS_INTERFACE_VALUE;
76 static const char *interfaces[] =
78 ATSPI_DBUS_INTERFACE_ACCESSIBLE,
79 ATSPI_DBUS_INTERFACE_ACTION,
80 ATSPI_DBUS_INTERFACE_APPLICATION,
81 ATSPI_DBUS_INTERFACE_COLLECTION,
82 ATSPI_DBUS_INTERFACE_COMPONENT,
83 ATSPI_DBUS_INTERFACE_DOCUMENT,
84 ATSPI_DBUS_INTERFACE_EDITABLE_TEXT,
85 ATSPI_DBUS_INTERFACE_HYPERLINK,
86 ATSPI_DBUS_INTERFACE_HYPERTEXT,
87 ATSPI_DBUS_INTERFACE_IMAGE,
88 "org.a11y.atspi.LoginHelper",
89 ATSPI_DBUS_INTERFACE_SELECTION,
90 ATSPI_DBUS_INTERFACE_TABLE,
91 ATSPI_DBUS_INTERFACE_TABLE_CELL,
92 ATSPI_DBUS_INTERFACE_TEXT,
93 ATSPI_DBUS_INTERFACE_VALUE,
98 _atspi_get_iface_num (const char *iface)
100 /* TODO: Use a binary search or hash to improve performance */
103 for (i = 0; interfaces[i]; i++)
105 if (!strcmp(iface, interfaces[i])) return i;
111 _atspi_get_live_refs (void)
115 live_refs = g_hash_table_new (g_direct_hash, g_direct_equal);
120 /* TODO: Add an application parameter */
127 g_error ("AT-SPI: Couldn't connect to accessibility bus. Is at-spi-bus-launcher running?");
131 #define APP_IS_REGISTRY(app) (!strcmp (app->bus_name, atspi_bus_registry))
133 static AtspiAccessible *desktop;
145 g_hash_table_destroy (refs);
150 dbus_connection_close (bus);
151 dbus_connection_unref (bus);
157 for (l = desktop->children; l;)
159 GList *next = l->next;
160 AtspiAccessible *child = l->data;
161 g_object_run_dispose (G_OBJECT (child->parent.app));
162 g_object_run_dispose (G_OBJECT (child));
165 g_object_run_dispose (G_OBJECT (desktop->parent.app));
166 g_object_unref (desktop);
170 static gboolean atspi_inited = FALSE;
172 static GHashTable *app_hash = NULL;
175 handle_get_bus_address (DBusPendingCall *pending, void *user_data)
177 AtspiApplication *app = user_data;
178 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
179 DBusMessage *message;
181 DBusPendingCall *new_pending;
183 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_METHOD_RETURN)
185 if (dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &address,
186 DBUS_TYPE_INVALID) && address [0])
191 dbus_error_init (&error);
192 bus = dbus_connection_open_private (address, &error);
197 dbus_connection_unref (app->bus);
203 g_warning ("Unable to open bus connection: %s", error.message);
204 dbus_error_free (&error);
208 dbus_message_unref (reply);
209 dbus_pending_call_unref (pending);
212 return; /* application has gone away / been disposed */
214 message = dbus_message_new_method_call (app->bus_name,
215 "/org/a11y/atspi/cache",
216 atspi_interface_cache, "GetItems");
218 dbus_connection_send_with_reply (app->bus, message, &new_pending, 2000);
219 dbus_message_unref (message);
222 dbus_pending_call_set_notify (new_pending, handle_get_items, app, NULL);
225 static AtspiApplication *
226 get_application (const char *bus_name)
228 AtspiApplication *app = NULL;
230 DBusMessage *message;
231 DBusPendingCall *pending = NULL;
236 app_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_object_unref);
237 if (!app_hash) return NULL;
239 app = g_hash_table_lookup (app_hash, bus_name);
241 bus_name_dup = g_strdup (bus_name);
242 if (!bus_name_dup) return NULL;
243 // TODO: change below to something that will send state-change:defunct notification if necessary */
244 app = _atspi_application_new (bus_name);
245 app->hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
246 app->bus = dbus_connection_ref (_atspi_bus ());
247 gettimeofday (&app->time_added, NULL);
248 app->cache = ATSPI_CACHE_UNDEFINED;
249 g_hash_table_insert (app_hash, bus_name_dup, app);
250 message = dbus_message_new_method_call (bus_name, atspi_path_root,
251 atspi_interface_application, "GetApplicationBusAddress");
253 result = dbus_connection_send_with_reply (app->bus, message, &pending, 2000);
254 dbus_message_unref (message);
255 if (!result || !pending)
257 g_hash_table_remove (app_hash, bus_name_dup);
260 dbus_pending_call_set_notify (pending, handle_get_bus_address, app, NULL);
265 ref_accessible (const char *app_name, const char *path)
267 AtspiApplication *app;
270 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
273 app = get_application (app_name);
275 if (!strcmp (path, "/org/a11y/atspi/accessible/root"))
279 app->root = _atspi_accessible_new (app, atspi_path_root);
280 app->root->accessible_parent = atspi_get_desktop (0);
281 app->root->accessible_parent->children = g_list_append (app->root->accessible_parent->children, g_object_ref (app->root));
283 return g_object_ref (app->root);
286 a = g_hash_table_lookup (app->hash, path);
289 return g_object_ref (a);
291 a = _atspi_accessible_new (app, path);
294 g_hash_table_insert (app->hash, g_strdup (a->parent.path), g_object_ref (a));
298 static AtspiHyperlink *
299 ref_hyperlink (const char *app_name, const char *path)
301 AtspiApplication *app = get_application (app_name);
302 AtspiHyperlink *hyperlink;
304 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
307 hyperlink = g_hash_table_lookup (app->hash, path);
310 return g_object_ref (hyperlink);
312 hyperlink = _atspi_hyperlink_new (app, path);
313 g_hash_table_insert (app->hash, g_strdup (hyperlink->parent.path), hyperlink);
314 /* TODO: This should be a weak ref */
315 g_object_ref (hyperlink); /* for the hash */
328 GArray *state_bitflags;
331 static DBusHandlerResult
332 handle_remove_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
334 const char *sender = dbus_message_get_sender (message);
335 AtspiApplication *app;
337 DBusMessageIter iter, iter_struct;
338 const char *signature = dbus_message_get_signature (message);
341 if (strcmp (signature, "(so)") != 0)
343 g_warning ("AT-SPI: Unknown signature %s for RemoveAccessible", signature);
344 return DBUS_HANDLER_RESULT_HANDLED;
347 dbus_message_iter_init (message, &iter);
348 dbus_message_iter_recurse (&iter, &iter_struct);
349 dbus_message_iter_get_basic (&iter_struct, &sender);
350 dbus_message_iter_next (&iter_struct);
351 dbus_message_iter_get_basic (&iter_struct, &path);
352 app = get_application (sender);
353 a = ref_accessible (sender, path);
355 return DBUS_HANDLER_RESULT_HANDLED;
356 g_object_run_dispose (G_OBJECT (a));
357 g_hash_table_remove (app->hash, a->parent.path);
358 g_object_unref (a); /* unref our own ref */
359 return DBUS_HANDLER_RESULT_HANDLED;
362 static DBusHandlerResult
363 handle_name_owner_changed (DBusConnection *bus, DBusMessage *message, void *user_data)
365 const char *name, *new, *old;
366 static gboolean registry_lost = FALSE;
368 if (!dbus_message_get_args (message, NULL,
369 DBUS_TYPE_STRING, &name,
370 DBUS_TYPE_STRING, &old,
371 DBUS_TYPE_STRING, &new,
374 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
377 if (!strcmp (name, "org.a11y.atspi.Registry"))
379 if (registry_lost && !old[0])
381 _atspi_reregister_event_listeners ();
382 _atspi_reregister_device_listeners ();
383 registry_lost = FALSE;
386 registry_lost = TRUE;
390 AtspiApplication *app = g_hash_table_lookup (app_hash, old);
391 if (app && app->bus_name && !strcmp(app->bus_name, name))
392 g_object_run_dispose (G_OBJECT (app));
394 return DBUS_HANDLER_RESULT_HANDLED;
398 add_app_to_desktop (AtspiAccessible *a, const char *bus_name)
400 AtspiAccessible *obj = ref_accessible (bus_name, atspi_path_root);
401 /* The app will be added to the desktop as a side-effect of calling
403 g_object_unref (obj);
404 return (obj != NULL);
408 get_reference_from_iter (DBusMessageIter *iter, const char **app_name, const char **path)
410 DBusMessageIter iter_struct;
412 dbus_message_iter_recurse (iter, &iter_struct);
413 dbus_message_iter_get_basic (&iter_struct, app_name);
414 dbus_message_iter_next (&iter_struct);
415 dbus_message_iter_get_basic (&iter_struct, path);
416 dbus_message_iter_next (iter);
420 add_accessible_from_iter (DBusMessageIter *iter)
422 DBusMessageIter iter_struct, iter_array;
423 const char *app_name, *path;
424 AtspiAccessible *accessible;
425 const char *name, *description;
428 dbus_message_iter_recurse (iter, &iter_struct);
431 get_reference_from_iter (&iter_struct, &app_name, &path);
432 accessible = ref_accessible (app_name, path);
436 /* Get application: TODO */
437 dbus_message_iter_next (&iter_struct);
440 get_reference_from_iter (&iter_struct, &app_name, &path);
441 if (accessible->accessible_parent)
442 g_object_unref (accessible->accessible_parent);
443 accessible->accessible_parent = ref_accessible (app_name, path);
446 while (accessible->children)
448 g_object_unref (accessible->children->data);
449 accessible->children = g_list_remove (accessible->children, accessible->children->data);
451 dbus_message_iter_recurse (&iter_struct, &iter_array);
452 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
454 AtspiAccessible *child;
455 get_reference_from_iter (&iter_array, &app_name, &path);
456 child = ref_accessible (app_name, path);
457 accessible->children = g_list_append (accessible->children, child);
461 dbus_message_iter_next (&iter_struct);
462 _atspi_dbus_set_interfaces (accessible, &iter_struct);
463 dbus_message_iter_next (&iter_struct);
466 if (accessible->name)
467 g_free (accessible->name);
468 dbus_message_iter_get_basic (&iter_struct, &name);
469 accessible->name = g_strdup (name);
470 dbus_message_iter_next (&iter_struct);
473 dbus_message_iter_get_basic (&iter_struct, &role);
474 accessible->role = role;
475 dbus_message_iter_next (&iter_struct);
478 if (accessible->description)
479 g_free (accessible->description);
480 dbus_message_iter_get_basic (&iter_struct, &description);
481 accessible->description = g_strdup (description);
482 dbus_message_iter_next (&iter_struct);
484 _atspi_dbus_set_state (accessible, &iter_struct);
485 dbus_message_iter_next (&iter_struct);
487 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_NAME | ATSPI_CACHE_ROLE |
488 ATSPI_CACHE_PARENT | ATSPI_CACHE_DESCRIPTION);
489 if (!atspi_state_set_contains (accessible->states,
490 ATSPI_STATE_MANAGES_DESCENDANTS))
491 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_CHILDREN);
493 /* This is a bit of a hack since the cache holds a ref, so we don't need
494 * the one provided for us anymore */
495 g_object_unref (accessible);
499 handle_get_items (DBusPendingCall *pending, void *user_data)
501 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
502 DBusMessageIter iter, iter_array;
504 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
506 const char *sender = dbus_message_get_sender (reply);
507 const char *error = NULL;
508 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &error,
510 g_warning ("AT-SPI: Error in GetItems, sender=%s, error=%s", sender, error);
511 dbus_message_unref (reply);
512 dbus_pending_call_unref (pending);
516 dbus_message_iter_init (reply, &iter);
517 dbus_message_iter_recurse (&iter, &iter_array);
518 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
520 add_accessible_from_iter (&iter_array);
521 dbus_message_iter_next (&iter_array);
523 dbus_message_unref (reply);
524 dbus_pending_call_unref (pending);
527 /* TODO: Do we stil need this function? */
528 static AtspiAccessible *
529 ref_accessible_desktop (AtspiApplication *app)
532 DBusMessage *message, *reply;
533 DBusMessageIter iter, iter_array;
538 g_object_ref (desktop);
541 desktop = _atspi_accessible_new (app, atspi_path_root);
546 g_hash_table_insert (app->hash, g_strdup (desktop->parent.path),
547 g_object_ref (desktop));
548 app->root = g_object_ref (desktop);
549 desktop->name = g_strdup ("main");
550 message = dbus_message_new_method_call (atspi_bus_registry,
552 atspi_interface_accessible,
557 reply = _atspi_dbus_send_with_reply_and_block (message, &error);
558 if (!reply || strcmp (dbus_message_get_signature (reply), "a(so)") != 0)
562 g_warning ("Couldn't get application list: %s", error->message);
563 g_clear_error (&error);
566 dbus_message_unref (reply);
569 dbus_message_iter_init (reply, &iter);
570 dbus_message_iter_recurse (&iter, &iter_array);
571 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
573 const char *app_name, *path;
574 get_reference_from_iter (&iter_array, &app_name, &path);
575 add_app_to_desktop (desktop, app_name);
577 dbus_message_unref (reply);
579 /* Record the alternate name as an alias for org.a11y.atspi.Registry */
580 bus_name_dup = g_strdup (dbus_message_get_sender (reply));
582 g_hash_table_insert (app_hash, bus_name_dup, app);
584 return g_object_ref (desktop);
588 _atspi_ref_accessible (const char *app, const char *path)
590 AtspiApplication *a = get_application (app);
593 if ( APP_IS_REGISTRY(a))
596 g_object_unref (ref_accessible_desktop (a)); /* sets a->root */
597 return g_object_ref (a->root);
599 return ref_accessible (app, path);
603 _atspi_dbus_return_accessible_from_message (DBusMessage *message)
605 DBusMessageIter iter;
606 AtspiAccessible *retval = NULL;
607 const char *signature;
612 signature = dbus_message_get_signature (message);
613 if (!strcmp (signature, "(so)"))
615 dbus_message_iter_init (message, &iter);
616 retval = _atspi_dbus_return_accessible_from_iter (&iter);
620 g_warning ("AT-SPI: Called _atspi_dbus_return_accessible_from_message with strange signature %s", signature);
622 dbus_message_unref (message);
627 _atspi_dbus_return_accessible_from_iter (DBusMessageIter *iter)
629 const char *app_name, *path;
631 get_reference_from_iter (iter, &app_name, &path);
632 return ref_accessible (app_name, path);
636 _atspi_dbus_return_hyperlink_from_message (DBusMessage *message)
638 DBusMessageIter iter;
639 AtspiHyperlink *retval = NULL;
640 const char *signature;
645 signature = dbus_message_get_signature (message);
646 if (!strcmp (signature, "(so)"))
648 dbus_message_iter_init (message, &iter);
649 retval = _atspi_dbus_return_hyperlink_from_iter (&iter);
653 g_warning ("AT-SPI: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s", signature);
655 dbus_message_unref (message);
660 _atspi_dbus_return_hyperlink_from_iter (DBusMessageIter *iter)
662 const char *app_name, *path;
664 get_reference_from_iter (iter, &app_name, &path);
665 return ref_hyperlink (app_name, path);
668 const char *cache_signal_type = "((so)(so)(so)a(so)assusau)";
670 static DBusHandlerResult
671 handle_add_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
673 DBusMessageIter iter;
675 if (strcmp (dbus_message_get_signature (message), cache_signal_type) != 0)
677 g_warning ("AT-SPI: AddAccessible with unknown signature %s\n",
678 dbus_message_get_signature (message));
679 return DBUS_HANDLER_RESULT_HANDLED;
682 dbus_message_iter_init (message, &iter);
683 add_accessible_from_iter (&iter);
684 return DBUS_HANDLER_RESULT_HANDLED;
690 DBusMessage *message;
694 static GSource *process_deferred_messages_source = NULL;
697 process_deferred_message (BusDataClosure *closure)
699 int type = dbus_message_get_type (closure->message);
700 const char *interface = dbus_message_get_interface (closure->message);
702 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
703 !strncmp (interface, "org.a11y.atspi.Event.", 21))
705 _atspi_dbus_handle_event (closure->bus, closure->message, closure->data);
707 if (dbus_message_is_method_call (closure->message, atspi_interface_device_event_listener, "NotifyEvent"))
709 _atspi_dbus_handle_DeviceEvent (closure->bus,
710 closure->message, closure->data);
712 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "AddAccessible"))
714 handle_add_accessible (closure->bus, closure->message, closure->data);
716 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "RemoveAccessible"))
718 handle_remove_accessible (closure->bus, closure->message, closure->data);
720 if (dbus_message_is_signal (closure->message, "org.freedesktop.DBus", "NameOwnerChanged"))
722 handle_name_owner_changed (closure->bus, closure->message, closure->data);
726 static GQueue *deferred_messages = NULL;
729 process_deferred_messages (void)
731 static int in_process_deferred_messages = 0;
732 BusDataClosure *closure;
734 if (in_process_deferred_messages)
736 in_process_deferred_messages = 1;
737 while ((closure = g_queue_pop_head (deferred_messages)))
739 process_deferred_message (closure);
740 dbus_message_unref (closure->message);
741 dbus_connection_unref (closure->bus);
744 in_process_deferred_messages = 0;
749 process_deferred_messages_callback (gpointer data)
751 if (process_deferred_messages ())
752 return G_SOURCE_CONTINUE;
754 process_deferred_messages_source = NULL;
755 return G_SOURCE_REMOVE;
758 static DBusHandlerResult
759 defer_message (DBusConnection *connection, DBusMessage *message, void *user_data)
761 BusDataClosure *closure = g_new (BusDataClosure, 1);
763 closure->bus = dbus_connection_ref (bus);
764 closure->message = dbus_message_ref (message);
765 closure->data = user_data;
767 g_queue_push_tail (deferred_messages, closure);
769 if (process_deferred_messages_source == NULL)
771 process_deferred_messages_source = g_idle_source_new ();
772 g_source_set_callback (process_deferred_messages_source,
773 process_deferred_messages_callback, NULL, NULL);
774 g_source_attach (process_deferred_messages_source, atspi_main_context);
775 g_source_unref (process_deferred_messages_source);
778 return DBUS_HANDLER_RESULT_HANDLED;
781 static DBusHandlerResult
782 atspi_dbus_filter (DBusConnection *bus, DBusMessage *message, void *data)
784 int type = dbus_message_get_type (message);
785 const char *interface = dbus_message_get_interface (message);
787 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
788 !strncmp (interface, "org.a11y.atspi.Event.", 21))
790 return defer_message (bus, message, data);
792 if (dbus_message_is_method_call (message, atspi_interface_device_event_listener, "NotifyEvent"))
794 return defer_message (bus, message, data);
796 if (dbus_message_is_signal (message, atspi_interface_cache, "AddAccessible"))
798 return defer_message (bus, message, data);
800 if (dbus_message_is_signal (message, atspi_interface_cache, "RemoveAccessible"))
802 return defer_message (bus, message, data);
804 if (dbus_message_is_signal (message, "org.freedesktop.DBus", "NameOwnerChanged"))
806 defer_message (bus, message, data);
807 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
809 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
813 * Returns a 'canonicalized' value for DISPLAY,
814 * with the screen number stripped off if present.
816 * TODO: Avoid having duplicate functions for this here and in at-spi2-atk
819 spi_display_name (void)
821 char *canonical_display_name = NULL;
822 const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
826 display_env = g_getenv ("DISPLAY");
827 if (!display_env || !display_env[0])
831 gchar *display_p, *screen_p;
832 canonical_display_name = g_strdup (display_env);
833 display_p = g_utf8_strrchr (canonical_display_name, -1, ':');
834 screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
835 if (screen_p && display_p && (screen_p > display_p))
843 canonical_display_name = g_strdup (display_env);
846 return canonical_display_name;
852 * Connects to the accessibility registry and initializes the SPI.
854 * Returns: 0 on success, 1 if already initialized, or an integer error code.
860 const gchar *no_cache;
869 _atspi_get_live_refs();
871 bus = atspi_get_a11y_bus ();
874 dbus_bus_register (bus, NULL);
875 atspi_dbus_connection_setup_with_g_main(bus, g_main_context_default());
876 dbus_connection_add_filter (bus, atspi_dbus_filter, NULL, NULL);
877 match = g_strdup_printf ("type='signal',interface='%s',member='AddAccessible'", atspi_interface_cache);
878 dbus_bus_add_match (bus, match, NULL);
880 match = g_strdup_printf ("type='signal',interface='%s',member='RemoveAccessible'", atspi_interface_cache);
881 dbus_bus_add_match (bus, match, NULL);
883 match = g_strdup_printf ("type='signal',interface='%s',member='ChildrenChanged'", atspi_interface_event_object);
884 dbus_bus_add_match (bus, match, NULL);
886 match = g_strdup_printf ("type='signal',interface='%s',member='PropertyChange'", atspi_interface_event_object);
887 dbus_bus_add_match (bus, match, NULL);
889 match = g_strdup_printf ("type='signal',interface='%s',member='StateChanged'", atspi_interface_event_object);
890 dbus_bus_add_match (bus, match, NULL);
893 dbus_bus_add_match (bus,
894 "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged'",
897 no_cache = g_getenv ("ATSPI_NO_CACHE");
898 if (no_cache && g_strcmp0 (no_cache, "0") != 0)
899 atspi_no_cache = TRUE;
901 deferred_messages = g_queue_new ();
907 * atspi_is_initialized:
909 * Indicates whether AT-SPI has been initialized.
911 * Returns: %True if initialized; %False otherwise.
914 atspi_is_initialized ()
922 * Starts/enters the main event loop for the AT-SPI services.
924 * NOTE: This method does not return control; it is exited via a call to
925 * #atspi_event_quit from within an event handler.
929 atspi_event_main (void)
931 atspi_main_loop = g_main_loop_new (NULL, FALSE);
932 g_main_loop_run (atspi_main_loop);
933 atspi_main_loop = NULL;
939 * Quits the last main event loop for the AT-SPI services,
940 * See: #atspi_event_main
943 atspi_event_quit (void)
945 g_main_loop_quit (atspi_main_loop);
951 * Disconnects from #AtspiRegistry instances and releases
952 * any floating resources. Call only once at exit.
954 * Returns: 0 if there were no leaks, otherwise other integer values.
966 atspi_inited = FALSE;
970 leaked = g_hash_table_size (live_refs);
982 static GSList *hung_processes;
985 remove_hung_process (DBusPendingCall *pending, void *data)
988 hung_processes = g_slist_remove (hung_processes, data);
990 dbus_pending_call_unref (pending);
994 check_for_hang (DBusMessage *message, DBusError *error, DBusConnection *bus, const char *bus_name)
996 if (!message && error->name &&
997 !strcmp (error->name, "org.freedesktop.DBus.Error.NoReply"))
1000 DBusMessage *message;
1001 gchar *bus_name_dup;
1002 DBusPendingCall *pending = NULL;
1004 for (l = hung_processes; l; l = l->next)
1005 if (!strcmp (l->data, bus_name))
1007 message = dbus_message_new_method_call (bus_name, "/",
1008 "org.freedesktop.DBus.Peer",
1012 result = dbus_connection_send_with_reply (bus, message, &pending, -1);
1013 dbus_message_unref (message);
1014 if (!result || !pending)
1016 bus_name_dup = g_strdup (bus_name);
1017 hung_processes = g_slist_append (hung_processes, bus_name_dup);
1018 dbus_pending_call_set_notify (pending, remove_hung_process, bus_name_dup, NULL);
1023 connection_is_hung (const char *bus_name)
1027 for (l = hung_processes; l; l = l->next)
1028 if (!strcmp (l->data, bus_name))
1034 check_app (AtspiApplication *app, GError **error)
1036 if (!app || !app->bus)
1038 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
1039 _("The application no longer exists"));
1043 if (atspi_main_loop && connection_is_hung (app->bus_name))
1045 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC,
1046 "The process appears to be hung.");
1054 set_timeout (AtspiApplication *app)
1059 if (app && app_startup_time > 0)
1061 gettimeofday (&tv, NULL);
1062 diff = (tv.tv_sec - app->time_added.tv_sec) * 1000 + (tv.tv_usec - app->time_added.tv_usec) / 1000;
1063 dbind_set_timeout (MAX(method_call_timeout, app_startup_time - diff));
1066 dbind_set_timeout (method_call_timeout);
1070 _atspi_dbus_call (gpointer obj, const char *interface, const char *method, GError **error, const char *type, ...)
1075 AtspiObject *aobj = ATSPI_OBJECT (obj);
1077 if (!check_app (aobj->app, error))
1082 _atspi_set_error_no_sync (error);
1086 va_start (args, type);
1087 dbus_error_init (&err);
1088 set_timeout (aobj->app);
1089 retval = dbind_method_call_reentrant_va (aobj->app->bus, aobj->app->bus_name,
1090 aobj->path, interface, method, &err,
1093 check_for_hang (NULL, &err, aobj->app->bus, aobj->app->bus_name);
1094 process_deferred_messages ();
1095 if (dbus_error_is_set (&err))
1097 g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "%s", err.message);
1098 dbus_error_free (&err);
1104 _atspi_dbus_call_partial (gpointer obj,
1105 const char *interface,
1108 const char *type, ...)
1111 DBusMessage * result;
1112 va_start (args, type);
1113 result = _atspi_dbus_call_partial_va (obj, interface, method, error, type, args);
1120 _atspi_dbus_call_partial_va (gpointer obj,
1121 const char *interface,
1127 AtspiObject *aobj = ATSPI_OBJECT (obj);
1129 DBusMessage *msg = NULL, *reply = NULL;
1130 DBusMessageIter iter;
1133 dbus_error_init (&err);
1135 if (!check_app (aobj->app, error))
1138 msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
1143 dbus_message_iter_init_append (msg, &iter);
1144 dbind_any_marshal_va (&iter, &p, args);
1146 set_timeout (aobj->app);
1147 reply = dbind_send_and_allow_reentry (aobj->app->bus, msg, &err);
1148 check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
1152 dbus_message_unref (msg);
1153 process_deferred_messages ();
1154 if (dbus_error_is_set (&err))
1156 g_set_error_literal(error, ATSPI_ERROR, ATSPI_ERROR_IPC, err.message);
1157 dbus_error_free (&err);
1159 dbus_message_unref(reply);
1162 else if (reply && dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1164 const char *err_str = NULL;
1165 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
1167 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
1168 dbus_message_unref (reply);
1175 _atspi_dbus_get_property (gpointer obj, const char *interface, const char *name, GError **error, const char *type, void *data)
1177 DBusMessage *message, *reply;
1178 DBusMessageIter iter, iter_variant;
1180 dbus_bool_t retval = FALSE;
1181 AtspiObject *aobj = ATSPI_OBJECT (obj);
1182 char expected_type = (type [0] == '(' ? 'r' : type [0]);
1187 if (!check_app (aobj->app, error))
1192 _atspi_set_error_no_sync (error);
1196 message = dbus_message_new_method_call (aobj->app->bus_name,
1198 "org.freedesktop.DBus.Properties",
1202 // TODO: throw exception
1205 dbus_message_append_args (message, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID);
1206 dbus_error_init (&err);
1207 set_timeout (aobj->app);
1208 reply = dbind_send_and_allow_reentry (aobj->app->bus, message, &err);
1209 check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
1210 dbus_message_unref (message);
1211 process_deferred_messages ();
1214 // TODO: throw exception
1218 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
1220 const char *err_str = NULL;
1221 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
1223 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
1227 dbus_message_iter_init (reply, &iter);
1228 if (dbus_message_iter_get_arg_type (&iter) != 'v')
1230 g_warning ("AT-SPI: expected a variant when fetching %s from interface %s; got %s\n", name, interface, dbus_message_get_signature (reply));
1233 dbus_message_iter_recurse (&iter, &iter_variant);
1234 if (dbus_message_iter_get_arg_type (&iter_variant) != expected_type)
1236 g_warning ("atspi_dbus_get_property: Wrong type: expected %s, got %c\n", type, dbus_message_iter_get_arg_type (&iter_variant));
1239 if (!strcmp (type, "(so)"))
1241 *((AtspiAccessible **)data) = _atspi_dbus_return_accessible_from_iter (&iter_variant);
1245 dbus_message_iter_get_basic (&iter_variant, data);
1246 if (type [0] == 's')
1247 *(char **)data = g_strdup (*(char **)data);
1251 dbus_error_free (&err);
1253 dbus_message_unref (reply);
1258 _atspi_dbus_send_with_reply_and_block (DBusMessage *message, GError **error)
1262 AtspiApplication *app;
1263 DBusConnection *bus;
1265 app = get_application (dbus_message_get_destination (message));
1267 if (app && !app->bus)
1268 return NULL; /* will fail anyway; app has been disposed */
1270 bus = (app ? app->bus : _atspi_bus());
1271 dbus_error_init (&err);
1273 reply = dbind_send_and_allow_reentry (bus, message, &err);
1274 process_deferred_messages ();
1275 dbus_message_unref (message);
1276 if (dbus_error_is_set (&err))
1279 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err.message);
1280 dbus_error_free (&err);
1286 _atspi_dbus_return_hash_from_message (DBusMessage *message)
1288 DBusMessageIter iter;
1294 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1296 dbus_message_iter_init (message, &iter);
1297 ret = _atspi_dbus_hash_from_iter (&iter);
1298 dbus_message_unref (message);
1303 _atspi_dbus_hash_from_iter (DBusMessageIter *iter)
1305 GHashTable *hash = g_hash_table_new_full (g_str_hash, g_str_equal,
1306 (GDestroyNotify) g_free,
1307 (GDestroyNotify) g_free);
1308 DBusMessageIter iter_array, iter_dict;
1310 dbus_message_iter_recurse (iter, &iter_array);
1311 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1313 const char *name, *value;
1314 dbus_message_iter_recurse (&iter_array, &iter_dict);
1315 dbus_message_iter_get_basic (&iter_dict, &name);
1316 dbus_message_iter_next (&iter_dict);
1317 dbus_message_iter_get_basic (&iter_dict, &value);
1318 g_hash_table_insert (hash, g_strdup (name), g_strdup (value));
1319 dbus_message_iter_next (&iter_array);
1325 _atspi_dbus_return_attribute_array_from_message (DBusMessage *message)
1327 DBusMessageIter iter;
1333 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1335 dbus_message_iter_init (message, &iter);
1337 ret = _atspi_dbus_attribute_array_from_iter (&iter);
1338 dbus_message_unref (message);
1343 _atspi_dbus_attribute_array_from_iter (DBusMessageIter *iter)
1345 DBusMessageIter iter_array, iter_dict;
1346 GArray *array = g_array_new (TRUE, TRUE, sizeof (gchar *));
1348 dbus_message_iter_recurse (iter, &iter_array);
1349 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1351 const char *name, *value;
1353 dbus_message_iter_recurse (&iter_array, &iter_dict);
1354 dbus_message_iter_get_basic (&iter_dict, &name);
1355 dbus_message_iter_next (&iter_dict);
1356 dbus_message_iter_get_basic (&iter_dict, &value);
1357 str = g_strdup_printf ("%s:%s", name, value);
1358 array = g_array_append_val (array, str);
1359 dbus_message_iter_next (&iter_array);;
1365 _atspi_dbus_set_interfaces (AtspiAccessible *accessible, DBusMessageIter *iter)
1367 DBusMessageIter iter_array;
1368 char *iter_sig = dbus_message_iter_get_signature (iter);
1370 accessible->interfaces = 0;
1371 if (strcmp (iter_sig, "as") != 0)
1373 g_warning ("_atspi_dbus_set_interfaces: Passed iterator with invalid signature %s", dbus_message_iter_get_signature (iter));
1374 dbus_free (iter_sig);
1377 dbus_free (iter_sig);
1378 dbus_message_iter_recurse (iter, &iter_array);
1379 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1383 dbus_message_iter_get_basic (&iter_array, &iface);
1384 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable")) continue;
1385 n = _atspi_get_iface_num (iface);
1388 g_warning ("AT-SPI: Unknown interface %s", iface);
1391 accessible->interfaces |= (1 << n);
1392 dbus_message_iter_next (&iter_array);
1394 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_INTERFACES);
1398 _atspi_dbus_set_state (AtspiAccessible *accessible, DBusMessageIter *iter)
1400 DBusMessageIter iter_array;
1402 dbus_uint32_t *states;
1404 dbus_message_iter_recurse (iter, &iter_array);
1405 dbus_message_iter_get_fixed_array (&iter_array, &states, &count);
1408 g_warning ("AT-SPI: expected 2 values in states array; got %d\n", count);
1409 if (!accessible->states)
1410 accessible->states = _atspi_state_set_new_internal (accessible, 0);
1414 guint64 val = ((guint64)states [1]) << 32;
1416 if (!accessible->states)
1417 accessible->states = _atspi_state_set_new_internal (accessible, val);
1419 accessible->states->states = val;
1421 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_STATES);
1425 _atspi_error_quark (void)
1427 return g_quark_from_static_string ("atspi_error");
1431 * Gets the IOR from the XDisplay.
1435 get_accessibility_bus_address_x11 (void)
1439 Display *bridge_display = NULL;
1442 unsigned char *data_x11 = NULL;
1443 unsigned long nitems;
1444 unsigned long leftover;
1447 display_name = spi_display_name ();
1451 bridge_display = XOpenDisplay (display_name);
1452 g_free (display_name);
1454 if (!bridge_display)
1456 g_warning ("Could not open X display");
1460 AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
1461 XGetWindowProperty (bridge_display,
1462 XDefaultRootWindow (bridge_display),
1464 (long) BUFSIZ, False,
1465 (Atom) 31, &actual_type, &actual_format,
1466 &nitems, &leftover, &data_x11);
1467 XCloseDisplay (bridge_display);
1469 data = g_strdup ((gchar *)data_x11);
1476 get_accessibility_bus_address_dbus (void)
1478 DBusConnection *session_bus = NULL;
1479 DBusMessage *message;
1482 char *address = NULL;
1484 session_bus = dbus_bus_get (DBUS_BUS_SESSION, NULL);
1488 message = dbus_message_new_method_call ("org.a11y.Bus",
1493 dbus_error_init (&error);
1494 reply = dbus_connection_send_with_reply_and_block (session_bus,
1498 dbus_message_unref (message);
1502 g_warning ("Error retrieving accessibility bus address: %s: %s",
1503 error.name, error.message);
1504 dbus_error_free (&error);
1509 const char *tmp_address;
1510 if (!dbus_message_get_args (reply,
1516 dbus_message_unref (reply);
1519 address = g_strdup (tmp_address);
1520 dbus_message_unref (reply);
1524 dbus_connection_unref (session_bus);
1528 static DBusConnection *a11y_bus;
1529 static dbus_int32_t a11y_dbus_slot = -1;
1532 a11y_bus_free (void *data)
1534 if (data == a11y_bus)
1537 dbus_connection_free_data_slot (&a11y_dbus_slot);
1542 * atspi_get_a11y_bus: (skip)
1545 atspi_get_a11y_bus (void)
1548 char *address = NULL;
1550 if (a11y_bus && dbus_connection_get_is_connected (a11y_bus))
1553 if (a11y_dbus_slot == -1)
1554 if (!dbus_connection_allocate_data_slot (&a11y_dbus_slot))
1555 g_warning ("at-spi: Unable to allocate D-Bus slot");
1558 address = get_accessibility_bus_address_x11 ();
1561 address = get_accessibility_bus_address_dbus ();
1565 dbus_error_init (&error);
1566 a11y_bus = dbus_connection_open_private (address, &error);
1571 g_warning ("Couldn't connect to accessibility bus: %s", error.message);
1572 dbus_error_free (&error);
1577 if (!dbus_bus_register (a11y_bus, &error))
1579 g_warning ("Couldn't register with accessibility bus: %s", error.message);
1580 dbus_error_free (&error);
1581 dbus_connection_close (a11y_bus);
1582 dbus_connection_unref (a11y_bus);
1588 /* Simulate a weak ref on the bus */
1589 dbus_connection_set_data (a11y_bus, a11y_dbus_slot, a11y_bus, a11y_bus_free);
1595 * atspi_set_timeout:
1596 * @val: The timeout value, in milliseconds, or -1 to disable the timeout.
1597 * @startup_time: The amount of time, in milliseconds, to allow to pass
1598 * before enforcing timeouts on an application. Can be used to prevent
1599 * timeout exceptions if an application is likely to block for an extended
1600 * period of time on initialization. -1 can be passed to disable this
1603 * Set the timeout used for method calls. If this is not set explicitly,
1604 * a default of 0.8 ms is used.
1605 * Note that at-spi2-registryd currently uses a timeout of 3 seconds when
1606 * sending a keyboard event notification. This means that, if an AT makes
1607 * a call in response to the keyboard notification and the application
1608 * being called does not respond before the timeout is reached,
1609 * at-spi2-registryd will time out on the keyboard event notification and
1610 * pass the key onto the application (ie, reply to indicate that the key
1611 * was not consumed), so this may make it undesirable to set a timeout
1612 * larger than 3 seconds.
1614 * By default, the normal timeout is set to 800 ms, and the application startup
1615 * timeout is set to 15 seconds.
1618 atspi_set_timeout (gint val, gint startup_time)
1620 method_call_timeout = val;
1621 app_startup_time = startup_time;
1625 * atspi_set_main_context:
1626 * @cnx: The #GMainContext to use.
1628 * Sets the main loop context that AT-SPI should assume is in use when
1629 * setting an idle callback.
1630 * This function should be called by application-side implementors (ie,
1631 * at-spi2-atk) when it is desirable to re-enter the main loop.
1634 atspi_set_main_context (GMainContext *cnx)
1636 if (atspi_main_context == cnx)
1638 if (process_deferred_messages_source != NULL)
1640 g_source_destroy (process_deferred_messages_source);
1641 process_deferred_messages_source = g_idle_source_new ();
1642 g_source_set_callback (process_deferred_messages_source,
1643 process_deferred_messages_callback, NULL, NULL);
1644 g_source_attach (process_deferred_messages_source, cnx);
1645 g_source_unref (process_deferred_messages_source);
1647 atspi_main_context = cnx;
1648 atspi_dbus_connection_setup_with_g_main (atspi_get_a11y_bus (), cnx);
1651 #ifdef DEBUG_REF_COUNTS
1653 print_disposed (gpointer key, gpointer value, gpointer data)
1655 AtspiAccessible *accessible = key;
1656 if (accessible->parent.app)
1658 g_print ("disposed: %s %d\n", accessible->name, accessible->role);
1664 g_hash_table_foreach (live_refs, print_disposed, NULL);
1669 _atspi_name_compat (gchar *name)
1683 * atspi_role_get_name:
1684 * @role: an #AtspiRole object to query.
1686 * Gets a localizable string that indicates the name of an #AtspiRole.
1687 * <em>DEPRECATED.</em>
1689 * Returns: a localizable string name for an #AtspiRole enumerated type.
1692 atspi_role_get_name (AtspiRole role)
1694 gchar *retval = NULL;
1695 GTypeClass *type_class;
1698 type_class = g_type_class_ref (ATSPI_TYPE_ROLE);
1699 g_return_val_if_fail (G_IS_ENUM_CLASS (type_class), NULL);
1701 value = g_enum_get_value (G_ENUM_CLASS (type_class), role);
1705 retval = g_strdup (value->value_nick);
1708 g_type_class_unref (type_class);
1711 return _atspi_name_compat (retval);
1717 _atspi_dbus_update_cache_from_dict (AtspiAccessible *accessible, DBusMessageIter *iter)
1719 GHashTable *cache = _atspi_accessible_ref_cache (accessible);
1720 DBusMessageIter iter_dict, iter_dict_entry, iter_struct, iter_variant;
1722 dbus_message_iter_recurse (iter, &iter_dict);
1723 while (dbus_message_iter_get_arg_type (&iter_dict) != DBUS_TYPE_INVALID)
1727 dbus_message_iter_recurse (&iter_dict, &iter_dict_entry);
1728 dbus_message_iter_get_basic (&iter_dict_entry, &key);
1729 dbus_message_iter_next (&iter_dict_entry);
1730 dbus_message_iter_recurse (&iter_dict_entry, &iter_variant);
1731 if (!strcmp (key, "interfaces"))
1733 _atspi_dbus_set_interfaces (accessible, &iter_variant);
1735 else if (!strcmp (key, "Attributes"))
1737 char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
1738 val = g_new0 (GValue, 1);;
1739 g_value_init (val, G_TYPE_HASH_TABLE);
1740 if (strcmp (iter_sig, "a{ss}") != 0)
1742 dbus_free (iter_sig);
1745 dbus_free (iter_sig);
1746 g_value_take_boxed (val, _atspi_dbus_hash_from_iter (&iter_variant));
1748 else if (!strcmp (key, "Component.ScreenExtents"))
1752 char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
1753 val = g_new0 (GValue, 1);;
1754 g_value_init (val, ATSPI_TYPE_RECT);
1755 if (strcmp (iter_sig, "(iiii)") != 0)
1757 dbus_free (iter_sig);
1760 dbus_free (iter_sig);
1761 dbus_message_iter_recurse (&iter_variant, &iter_struct);
1762 dbus_message_iter_get_basic (&iter_struct, &d_int);
1764 dbus_message_iter_next (&iter_struct);
1765 dbus_message_iter_get_basic (&iter_struct, &d_int);
1767 dbus_message_iter_next (&iter_struct);
1768 dbus_message_iter_get_basic (&iter_struct, &d_int);
1769 extents.width = d_int;
1770 dbus_message_iter_next (&iter_struct);
1771 dbus_message_iter_get_basic (&iter_struct, &d_int);
1772 extents.height = d_int;
1773 g_value_set_boxed (val, &extents);
1776 g_hash_table_insert (cache, g_strdup (key), val);
1777 dbus_message_iter_next (&iter_dict);
1784 _atspi_get_allow_sync ()
1790 _atspi_set_allow_sync (gboolean val)
1792 gboolean ret = allow_sync;
1799 _atspi_set_error_no_sync (GError **error)
1801 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_SYNC_NOT_ALLOWED,
1802 _("Attempted synchronous call where prohibited"));