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;
235 app_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_object_unref);
236 if (!app_hash) return NULL;
238 app = g_hash_table_lookup (app_hash, bus_name);
240 bus_name_dup = g_strdup (bus_name);
241 if (!bus_name_dup) return NULL;
242 // TODO: change below to something that will send state-change:defunct notification if necessary */
243 app = _atspi_application_new (bus_name);
244 app->hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
245 app->bus = dbus_connection_ref (_atspi_bus ());
246 gettimeofday (&app->time_added, NULL);
247 app->cache = ATSPI_CACHE_UNDEFINED;
248 g_hash_table_insert (app_hash, bus_name_dup, app);
249 message = dbus_message_new_method_call (bus_name, atspi_path_root,
250 atspi_interface_application, "GetApplicationBusAddress");
252 dbus_connection_send_with_reply (app->bus, message, &pending, 2000);
253 dbus_message_unref (message);
256 g_hash_table_remove (app_hash, bus_name_dup);
259 dbus_pending_call_set_notify (pending, handle_get_bus_address, app, NULL);
263 static AtspiAccessible *
264 ref_accessible (const char *app_name, const char *path)
266 AtspiApplication *app;
269 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
272 app = get_application (app_name);
274 if (!strcmp (path, "/org/a11y/atspi/accessible/root"))
278 app->root = _atspi_accessible_new (app, atspi_path_root);
279 app->root->accessible_parent = atspi_get_desktop (0);
280 app->root->accessible_parent->children = g_list_append (app->root->accessible_parent->children, g_object_ref (app->root));
282 return g_object_ref (app->root);
285 a = g_hash_table_lookup (app->hash, path);
288 return g_object_ref (a);
290 a = _atspi_accessible_new (app, path);
293 g_hash_table_insert (app->hash, g_strdup (a->parent.path), g_object_ref (a));
297 static AtspiHyperlink *
298 ref_hyperlink (const char *app_name, const char *path)
300 AtspiApplication *app = get_application (app_name);
301 AtspiHyperlink *hyperlink;
303 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
306 hyperlink = g_hash_table_lookup (app->hash, path);
309 return g_object_ref (hyperlink);
311 hyperlink = _atspi_hyperlink_new (app, path);
312 g_hash_table_insert (app->hash, g_strdup (hyperlink->parent.path), hyperlink);
313 /* TODO: This should be a weak ref */
314 g_object_ref (hyperlink); /* for the hash */
327 GArray *state_bitflags;
330 static DBusHandlerResult
331 handle_remove_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
333 const char *sender = dbus_message_get_sender (message);
334 AtspiApplication *app;
336 DBusMessageIter iter, iter_struct;
337 const char *signature = dbus_message_get_signature (message);
340 if (strcmp (signature, "(so)") != 0)
342 g_warning ("AT-SPI: Unknown signature %s for RemoveAccessible", signature);
343 return DBUS_HANDLER_RESULT_HANDLED;
346 dbus_message_iter_init (message, &iter);
347 dbus_message_iter_recurse (&iter, &iter_struct);
348 dbus_message_iter_get_basic (&iter_struct, &sender);
349 dbus_message_iter_next (&iter_struct);
350 dbus_message_iter_get_basic (&iter_struct, &path);
351 app = get_application (sender);
352 a = ref_accessible (sender, path);
354 return DBUS_HANDLER_RESULT_HANDLED;
355 g_object_run_dispose (G_OBJECT (a));
356 g_hash_table_remove (app->hash, a->parent.path);
357 g_object_unref (a); /* unref our own ref */
358 return DBUS_HANDLER_RESULT_HANDLED;
361 static DBusHandlerResult
362 handle_name_owner_changed (DBusConnection *bus, DBusMessage *message, void *user_data)
364 const char *name, *new, *old;
365 static gboolean registry_lost = FALSE;
367 if (!dbus_message_get_args (message, NULL,
368 DBUS_TYPE_STRING, &name,
369 DBUS_TYPE_STRING, &old,
370 DBUS_TYPE_STRING, &new,
373 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
376 if (!strcmp (name, "org.a11y.atspi.Registry"))
378 if (registry_lost && !old[0])
380 _atspi_reregister_event_listeners ();
381 _atspi_reregister_device_listeners ();
382 registry_lost = FALSE;
385 registry_lost = TRUE;
389 AtspiApplication *app = g_hash_table_lookup (app_hash, old);
390 if (app && app->bus_name && !strcmp(app->bus_name, name))
391 g_object_run_dispose (G_OBJECT (app));
393 return DBUS_HANDLER_RESULT_HANDLED;
397 add_app_to_desktop (AtspiAccessible *a, const char *bus_name)
399 AtspiAccessible *obj = ref_accessible (bus_name, atspi_path_root);
400 /* The app will be added to the desktop as a side-effect of calling
402 g_object_unref (obj);
403 return (obj != NULL);
407 get_reference_from_iter (DBusMessageIter *iter, const char **app_name, const char **path)
409 DBusMessageIter iter_struct;
411 dbus_message_iter_recurse (iter, &iter_struct);
412 dbus_message_iter_get_basic (&iter_struct, app_name);
413 dbus_message_iter_next (&iter_struct);
414 dbus_message_iter_get_basic (&iter_struct, path);
415 dbus_message_iter_next (iter);
419 add_accessible_from_iter (DBusMessageIter *iter)
421 DBusMessageIter iter_struct, iter_array;
422 const char *app_name, *path;
423 AtspiAccessible *accessible;
424 const char *name, *description;
427 dbus_message_iter_recurse (iter, &iter_struct);
430 get_reference_from_iter (&iter_struct, &app_name, &path);
431 accessible = ref_accessible (app_name, path);
435 /* Get application: TODO */
436 dbus_message_iter_next (&iter_struct);
439 get_reference_from_iter (&iter_struct, &app_name, &path);
440 if (accessible->accessible_parent)
441 g_object_unref (accessible->accessible_parent);
442 accessible->accessible_parent = ref_accessible (app_name, path);
445 while (accessible->children)
447 g_object_unref (accessible->children->data);
448 accessible->children = g_list_remove (accessible->children, accessible->children->data);
450 dbus_message_iter_recurse (&iter_struct, &iter_array);
451 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
453 AtspiAccessible *child;
454 get_reference_from_iter (&iter_array, &app_name, &path);
455 child = ref_accessible (app_name, path);
456 accessible->children = g_list_append (accessible->children, child);
460 dbus_message_iter_next (&iter_struct);
461 _atspi_dbus_set_interfaces (accessible, &iter_struct);
462 dbus_message_iter_next (&iter_struct);
465 if (accessible->name)
466 g_free (accessible->name);
467 dbus_message_iter_get_basic (&iter_struct, &name);
468 accessible->name = g_strdup (name);
469 dbus_message_iter_next (&iter_struct);
472 dbus_message_iter_get_basic (&iter_struct, &role);
473 accessible->role = role;
474 dbus_message_iter_next (&iter_struct);
477 if (accessible->description)
478 g_free (accessible->description);
479 dbus_message_iter_get_basic (&iter_struct, &description);
480 accessible->description = g_strdup (description);
481 dbus_message_iter_next (&iter_struct);
483 _atspi_dbus_set_state (accessible, &iter_struct);
484 dbus_message_iter_next (&iter_struct);
486 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_NAME | ATSPI_CACHE_ROLE |
487 ATSPI_CACHE_PARENT | ATSPI_CACHE_DESCRIPTION);
488 if (!atspi_state_set_contains (accessible->states,
489 ATSPI_STATE_MANAGES_DESCENDANTS))
490 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_CHILDREN);
492 /* This is a bit of a hack since the cache holds a ref, so we don't need
493 * the one provided for us anymore */
494 g_object_unref (accessible);
498 handle_get_items (DBusPendingCall *pending, void *user_data)
500 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
501 DBusMessageIter iter, iter_array;
503 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
505 const char *sender = dbus_message_get_sender (reply);
506 const char *error = NULL;
507 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &error,
509 g_warning ("AT-SPI: Error in GetItems, sender=%s, error=%s", sender, error);
510 dbus_message_unref (reply);
511 dbus_pending_call_unref (pending);
515 dbus_message_iter_init (reply, &iter);
516 dbus_message_iter_recurse (&iter, &iter_array);
517 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
519 add_accessible_from_iter (&iter_array);
520 dbus_message_iter_next (&iter_array);
522 dbus_message_unref (reply);
523 dbus_pending_call_unref (pending);
526 /* TODO: Do we stil need this function? */
527 static AtspiAccessible *
528 ref_accessible_desktop (AtspiApplication *app)
531 DBusMessage *message, *reply;
532 DBusMessageIter iter, iter_array;
537 g_object_ref (desktop);
540 desktop = _atspi_accessible_new (app, atspi_path_root);
545 g_hash_table_insert (app->hash, g_strdup (desktop->parent.path),
546 g_object_ref (desktop));
547 app->root = g_object_ref (desktop);
548 desktop->name = g_strdup ("main");
549 message = dbus_message_new_method_call (atspi_bus_registry,
551 atspi_interface_accessible,
556 reply = _atspi_dbus_send_with_reply_and_block (message, &error);
557 if (!reply || strcmp (dbus_message_get_signature (reply), "a(so)") != 0)
561 g_warning ("Couldn't get application list: %s", error->message);
562 g_clear_error (&error);
565 dbus_message_unref (reply);
568 dbus_message_iter_init (reply, &iter);
569 dbus_message_iter_recurse (&iter, &iter_array);
570 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
572 const char *app_name, *path;
573 get_reference_from_iter (&iter_array, &app_name, &path);
574 add_app_to_desktop (desktop, app_name);
576 dbus_message_unref (reply);
578 /* Record the alternate name as an alias for org.a11y.atspi.Registry */
579 bus_name_dup = g_strdup (dbus_message_get_sender (reply));
581 g_hash_table_insert (app_hash, bus_name_dup, app);
583 return g_object_ref (desktop);
587 _atspi_ref_accessible (const char *app, const char *path)
589 AtspiApplication *a = get_application (app);
592 if ( APP_IS_REGISTRY(a))
595 g_object_unref (ref_accessible_desktop (a)); /* sets a->root */
596 return g_object_ref (a->root);
598 return ref_accessible (app, path);
602 _atspi_dbus_return_accessible_from_message (DBusMessage *message)
604 DBusMessageIter iter;
605 AtspiAccessible *retval = NULL;
606 const char *signature;
611 signature = dbus_message_get_signature (message);
612 if (!strcmp (signature, "(so)"))
614 dbus_message_iter_init (message, &iter);
615 retval = _atspi_dbus_return_accessible_from_iter (&iter);
619 g_warning ("AT-SPI: Called _atspi_dbus_return_accessible_from_message with strange signature %s", signature);
621 dbus_message_unref (message);
626 _atspi_dbus_return_accessible_from_iter (DBusMessageIter *iter)
628 const char *app_name, *path;
630 get_reference_from_iter (iter, &app_name, &path);
631 return ref_accessible (app_name, path);
635 _atspi_dbus_return_hyperlink_from_message (DBusMessage *message)
637 DBusMessageIter iter;
638 AtspiHyperlink *retval = NULL;
639 const char *signature;
644 signature = dbus_message_get_signature (message);
645 if (!strcmp (signature, "(so)"))
647 dbus_message_iter_init (message, &iter);
648 retval = _atspi_dbus_return_hyperlink_from_iter (&iter);
652 g_warning ("AT-SPI: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s", signature);
654 dbus_message_unref (message);
659 _atspi_dbus_return_hyperlink_from_iter (DBusMessageIter *iter)
661 const char *app_name, *path;
663 get_reference_from_iter (iter, &app_name, &path);
664 return ref_hyperlink (app_name, path);
667 const char *cache_signal_type = "((so)(so)(so)a(so)assusau)";
669 static DBusHandlerResult
670 handle_add_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
672 DBusMessageIter iter;
674 if (strcmp (dbus_message_get_signature (message), cache_signal_type) != 0)
676 g_warning ("AT-SPI: AddAccessible with unknown signature %s\n",
677 dbus_message_get_signature (message));
678 return DBUS_HANDLER_RESULT_HANDLED;
681 dbus_message_iter_init (message, &iter);
682 add_accessible_from_iter (&iter);
683 return DBUS_HANDLER_RESULT_HANDLED;
689 DBusMessage *message;
693 static GSource *process_deferred_messages_source = NULL;
696 process_deferred_message (BusDataClosure *closure)
698 int type = dbus_message_get_type (closure->message);
699 const char *interface = dbus_message_get_interface (closure->message);
701 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
702 !strncmp (interface, "org.a11y.atspi.Event.", 21))
704 _atspi_dbus_handle_event (closure->bus, closure->message, closure->data);
706 if (dbus_message_is_method_call (closure->message, atspi_interface_device_event_listener, "NotifyEvent"))
708 _atspi_dbus_handle_DeviceEvent (closure->bus,
709 closure->message, closure->data);
711 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "AddAccessible"))
713 handle_add_accessible (closure->bus, closure->message, closure->data);
715 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "RemoveAccessible"))
717 handle_remove_accessible (closure->bus, closure->message, closure->data);
719 if (dbus_message_is_signal (closure->message, "org.freedesktop.DBus", "NameOwnerChanged"))
721 handle_name_owner_changed (closure->bus, closure->message, closure->data);
725 static GQueue *deferred_messages = NULL;
728 process_deferred_messages (void)
730 static int in_process_deferred_messages = 0;
731 BusDataClosure *closure;
733 if (in_process_deferred_messages)
735 in_process_deferred_messages = 1;
736 while ((closure = g_queue_pop_head (deferred_messages)))
738 process_deferred_message (closure);
739 dbus_message_unref (closure->message);
740 dbus_connection_unref (closure->bus);
743 in_process_deferred_messages = 0;
748 process_deferred_messages_callback (gpointer data)
750 if (process_deferred_messages ())
751 return G_SOURCE_CONTINUE;
753 process_deferred_messages_source = NULL;
754 return G_SOURCE_REMOVE;
757 static DBusHandlerResult
758 defer_message (DBusConnection *connection, DBusMessage *message, void *user_data)
760 BusDataClosure *closure = g_new (BusDataClosure, 1);
762 closure->bus = dbus_connection_ref (bus);
763 closure->message = dbus_message_ref (message);
764 closure->data = user_data;
766 g_queue_push_tail (deferred_messages, closure);
768 if (process_deferred_messages_source == NULL)
770 process_deferred_messages_source = g_idle_source_new ();
771 g_source_set_callback (process_deferred_messages_source,
772 process_deferred_messages_callback, NULL, NULL);
773 g_source_attach (process_deferred_messages_source, atspi_main_context);
774 g_source_unref (process_deferred_messages_source);
777 return DBUS_HANDLER_RESULT_HANDLED;
780 static DBusHandlerResult
781 atspi_dbus_filter (DBusConnection *bus, DBusMessage *message, void *data)
783 int type = dbus_message_get_type (message);
784 const char *interface = dbus_message_get_interface (message);
786 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
787 !strncmp (interface, "org.a11y.atspi.Event.", 21))
789 return defer_message (bus, message, data);
791 if (dbus_message_is_method_call (message, atspi_interface_device_event_listener, "NotifyEvent"))
793 return defer_message (bus, message, data);
795 if (dbus_message_is_signal (message, atspi_interface_cache, "AddAccessible"))
797 return defer_message (bus, message, data);
799 if (dbus_message_is_signal (message, atspi_interface_cache, "RemoveAccessible"))
801 return defer_message (bus, message, data);
803 if (dbus_message_is_signal (message, "org.freedesktop.DBus", "NameOwnerChanged"))
805 defer_message (bus, message, data);
806 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
808 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
812 * Returns a 'canonicalized' value for DISPLAY,
813 * with the screen number stripped off if present.
815 * TODO: Avoid having duplicate functions for this here and in at-spi2-atk
818 spi_display_name (void)
820 char *canonical_display_name = NULL;
821 const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
825 display_env = g_getenv ("DISPLAY");
826 if (!display_env || !display_env[0])
830 gchar *display_p, *screen_p;
831 canonical_display_name = g_strdup (display_env);
832 display_p = g_utf8_strrchr (canonical_display_name, -1, ':');
833 screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
834 if (screen_p && display_p && (screen_p > display_p))
842 canonical_display_name = g_strdup (display_env);
845 return canonical_display_name;
851 * Connects to the accessibility registry and initializes the SPI.
853 * Returns: 0 on success, 1 if already initialized, or an integer error code.
859 const gchar *no_cache;
868 _atspi_get_live_refs();
870 bus = atspi_get_a11y_bus ();
873 dbus_bus_register (bus, NULL);
874 atspi_dbus_connection_setup_with_g_main(bus, g_main_context_default());
875 dbus_connection_add_filter (bus, atspi_dbus_filter, NULL, NULL);
876 match = g_strdup_printf ("type='signal',interface='%s',member='AddAccessible'", atspi_interface_cache);
877 dbus_bus_add_match (bus, match, NULL);
879 match = g_strdup_printf ("type='signal',interface='%s',member='RemoveAccessible'", atspi_interface_cache);
880 dbus_bus_add_match (bus, match, NULL);
882 match = g_strdup_printf ("type='signal',interface='%s',member='ChildrenChanged'", atspi_interface_event_object);
883 dbus_bus_add_match (bus, match, NULL);
885 match = g_strdup_printf ("type='signal',interface='%s',member='PropertyChange'", atspi_interface_event_object);
886 dbus_bus_add_match (bus, match, NULL);
888 match = g_strdup_printf ("type='signal',interface='%s',member='StateChanged'", atspi_interface_event_object);
889 dbus_bus_add_match (bus, match, NULL);
892 dbus_bus_add_match (bus,
893 "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged'",
896 no_cache = g_getenv ("ATSPI_NO_CACHE");
897 if (no_cache && g_strcmp0 (no_cache, "0") != 0)
898 atspi_no_cache = TRUE;
900 deferred_messages = g_queue_new ();
906 * atspi_is_initialized:
908 * Indicates whether AT-SPI has been initialized.
910 * Returns: %True if initialized; %False otherwise.
913 atspi_is_initialized ()
921 * Starts/enters the main event loop for the AT-SPI services.
923 * NOTE: This method does not return control; it is exited via a call to
924 * #atspi_event_quit from within an event handler.
928 atspi_event_main (void)
930 atspi_main_loop = g_main_loop_new (NULL, FALSE);
931 g_main_loop_run (atspi_main_loop);
932 atspi_main_loop = NULL;
938 * Quits the last main event loop for the AT-SPI services,
939 * See: #atspi_event_main
942 atspi_event_quit (void)
944 g_main_loop_quit (atspi_main_loop);
950 * Disconnects from #AtspiRegistry instances and releases
951 * any floating resources. Call only once at exit.
953 * Returns: 0 if there were no leaks, otherwise other integer values.
965 atspi_inited = FALSE;
969 leaked = g_hash_table_size (live_refs);
981 static GSList *hung_processes;
984 remove_hung_process (DBusPendingCall *pending, void *data)
987 hung_processes = g_slist_remove (hung_processes, data);
989 dbus_pending_call_unref (pending);
993 check_for_hang (DBusMessage *message, DBusError *error, DBusConnection *bus, const char *bus_name)
995 if (!message && error->name &&
996 !strcmp (error->name, "org.freedesktop.DBus.Error.NoReply"))
999 DBusMessage *message;
1000 gchar *bus_name_dup;
1001 DBusPendingCall *pending = NULL;
1002 for (l = hung_processes; l; l = l->next)
1003 if (!strcmp (l->data, bus_name))
1005 message = dbus_message_new_method_call (bus_name, "/",
1006 "org.freedesktop.DBus.Peer",
1010 dbus_connection_send_with_reply (bus, message, &pending, -1);
1011 dbus_message_unref (message);
1014 bus_name_dup = g_strdup (bus_name);
1015 hung_processes = g_slist_append (hung_processes, bus_name_dup);
1016 dbus_pending_call_set_notify (pending, remove_hung_process, bus_name_dup, NULL);
1021 connection_is_hung (const char *bus_name)
1025 for (l = hung_processes; l; l = l->next)
1026 if (!strcmp (l->data, bus_name))
1032 check_app (AtspiApplication *app, GError **error)
1034 if (!app || !app->bus)
1036 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
1037 _("The application no longer exists"));
1041 if (atspi_main_loop && connection_is_hung (app->bus_name))
1043 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC,
1044 "The process appears to be hung.");
1052 set_timeout (AtspiApplication *app)
1057 if (app && app_startup_time > 0)
1059 gettimeofday (&tv, NULL);
1060 diff = (tv.tv_sec - app->time_added.tv_sec) * 1000 + (tv.tv_usec - app->time_added.tv_usec) / 1000;
1061 dbind_set_timeout (MAX(method_call_timeout, app_startup_time - diff));
1064 dbind_set_timeout (method_call_timeout);
1068 _atspi_dbus_call (gpointer obj, const char *interface, const char *method, GError **error, const char *type, ...)
1073 AtspiObject *aobj = ATSPI_OBJECT (obj);
1075 if (!check_app (aobj->app, error))
1080 _atspi_set_error_no_sync (error);
1084 va_start (args, type);
1085 dbus_error_init (&err);
1086 set_timeout (aobj->app);
1087 retval = dbind_method_call_reentrant_va (aobj->app->bus, aobj->app->bus_name,
1088 aobj->path, interface, method, &err,
1091 check_for_hang (NULL, &err, aobj->app->bus, aobj->app->bus_name);
1092 process_deferred_messages ();
1093 if (dbus_error_is_set (&err))
1095 g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "%s", err.message);
1096 dbus_error_free (&err);
1102 _atspi_dbus_call_partial (gpointer obj,
1103 const char *interface,
1106 const char *type, ...)
1110 va_start (args, type);
1111 return _atspi_dbus_call_partial_va (obj, interface, method, error, type, args);
1116 _atspi_dbus_call_partial_va (gpointer obj,
1117 const char *interface,
1123 AtspiObject *aobj = ATSPI_OBJECT (obj);
1125 DBusMessage *msg = NULL, *reply = NULL;
1126 DBusMessageIter iter;
1129 dbus_error_init (&err);
1131 if (!check_app (aobj->app, error))
1134 msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
1139 dbus_message_iter_init_append (msg, &iter);
1140 dbind_any_marshal_va (&iter, &p, args);
1142 set_timeout (aobj->app);
1143 reply = dbind_send_and_allow_reentry (aobj->app->bus, msg, &err);
1144 check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
1148 dbus_message_unref (msg);
1149 process_deferred_messages ();
1150 if (dbus_error_is_set (&err))
1152 /* TODO: Set gerror */
1153 dbus_error_free (&err);
1156 if (reply && dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
1158 const char *err_str = NULL;
1159 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
1161 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
1162 dbus_message_unref (reply);
1170 _atspi_dbus_get_property (gpointer obj, const char *interface, const char *name, GError **error, const char *type, void *data)
1172 DBusMessage *message, *reply;
1173 DBusMessageIter iter, iter_variant;
1175 dbus_bool_t retval = FALSE;
1176 AtspiObject *aobj = ATSPI_OBJECT (obj);
1177 char expected_type = (type [0] == '(' ? 'r' : type [0]);
1182 if (!check_app (aobj->app, error))
1187 _atspi_set_error_no_sync (error);
1191 message = dbus_message_new_method_call (aobj->app->bus_name,
1193 "org.freedesktop.DBus.Properties",
1197 // TODO: throw exception
1200 dbus_message_append_args (message, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID);
1201 dbus_error_init (&err);
1202 set_timeout (aobj->app);
1203 reply = dbind_send_and_allow_reentry (aobj->app->bus, message, &err);
1204 check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
1205 dbus_message_unref (message);
1206 process_deferred_messages ();
1209 // TODO: throw exception
1213 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
1215 const char *err_str = NULL;
1216 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
1218 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
1222 dbus_message_iter_init (reply, &iter);
1223 if (dbus_message_iter_get_arg_type (&iter) != 'v')
1225 g_warning ("AT-SPI: expected a variant when fetching %s from interface %s; got %s\n", name, interface, dbus_message_get_signature (reply));
1228 dbus_message_iter_recurse (&iter, &iter_variant);
1229 if (dbus_message_iter_get_arg_type (&iter_variant) != expected_type)
1231 g_warning ("atspi_dbus_get_property: Wrong type: expected %s, got %c\n", type, dbus_message_iter_get_arg_type (&iter_variant));
1234 if (!strcmp (type, "(so)"))
1236 *((AtspiAccessible **)data) = _atspi_dbus_return_accessible_from_iter (&iter_variant);
1240 dbus_message_iter_get_basic (&iter_variant, data);
1241 if (type [0] == 's')
1242 *(char **)data = g_strdup (*(char **)data);
1246 dbus_error_free (&err);
1248 dbus_message_unref (reply);
1253 _atspi_dbus_send_with_reply_and_block (DBusMessage *message, GError **error)
1257 AtspiApplication *app;
1258 DBusConnection *bus;
1260 app = get_application (dbus_message_get_destination (message));
1262 if (app && !app->bus)
1263 return NULL; /* will fail anyway; app has been disposed */
1265 bus = (app ? app->bus : _atspi_bus());
1266 dbus_error_init (&err);
1268 reply = dbind_send_and_allow_reentry (bus, message, &err);
1269 process_deferred_messages ();
1270 dbus_message_unref (message);
1271 if (dbus_error_is_set (&err))
1274 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err.message);
1275 dbus_error_free (&err);
1281 _atspi_dbus_return_hash_from_message (DBusMessage *message)
1283 DBusMessageIter iter;
1289 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1291 dbus_message_iter_init (message, &iter);
1292 ret = _atspi_dbus_hash_from_iter (&iter);
1293 dbus_message_unref (message);
1298 _atspi_dbus_hash_from_iter (DBusMessageIter *iter)
1300 GHashTable *hash = g_hash_table_new_full (g_str_hash, g_str_equal,
1301 (GDestroyNotify) g_free,
1302 (GDestroyNotify) g_free);
1303 DBusMessageIter iter_array, iter_dict;
1305 dbus_message_iter_recurse (iter, &iter_array);
1306 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1308 const char *name, *value;
1309 dbus_message_iter_recurse (&iter_array, &iter_dict);
1310 dbus_message_iter_get_basic (&iter_dict, &name);
1311 dbus_message_iter_next (&iter_dict);
1312 dbus_message_iter_get_basic (&iter_dict, &value);
1313 g_hash_table_insert (hash, g_strdup (name), g_strdup (value));
1314 dbus_message_iter_next (&iter_array);
1320 _atspi_dbus_return_attribute_array_from_message (DBusMessage *message)
1322 DBusMessageIter iter;
1328 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1330 dbus_message_iter_init (message, &iter);
1332 ret = _atspi_dbus_attribute_array_from_iter (&iter);
1333 dbus_message_unref (message);
1338 _atspi_dbus_attribute_array_from_iter (DBusMessageIter *iter)
1340 DBusMessageIter iter_array, iter_dict;
1341 GArray *array = g_array_new (TRUE, TRUE, sizeof (gchar *));
1343 dbus_message_iter_recurse (iter, &iter_array);
1344 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1346 const char *name, *value;
1348 dbus_message_iter_recurse (&iter_array, &iter_dict);
1349 dbus_message_iter_get_basic (&iter_dict, &name);
1350 dbus_message_iter_next (&iter_dict);
1351 dbus_message_iter_get_basic (&iter_dict, &value);
1352 str = g_strdup_printf ("%s:%s", name, value);
1353 array = g_array_append_val (array, str);
1354 dbus_message_iter_next (&iter_array);;
1360 _atspi_dbus_set_interfaces (AtspiAccessible *accessible, DBusMessageIter *iter)
1362 DBusMessageIter iter_array;
1363 char *iter_sig = dbus_message_iter_get_signature (iter);
1365 accessible->interfaces = 0;
1366 if (strcmp (iter_sig, "as") != 0)
1368 g_warning ("_atspi_dbus_set_interfaces: Passed iterator with invalid signature %s", dbus_message_iter_get_signature (iter));
1369 dbus_free (iter_sig);
1372 dbus_free (iter_sig);
1373 dbus_message_iter_recurse (iter, &iter_array);
1374 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1378 dbus_message_iter_get_basic (&iter_array, &iface);
1379 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable")) continue;
1380 n = _atspi_get_iface_num (iface);
1383 g_warning ("AT-SPI: Unknown interface %s", iface);
1386 accessible->interfaces |= (1 << n);
1387 dbus_message_iter_next (&iter_array);
1389 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_INTERFACES);
1393 _atspi_dbus_set_state (AtspiAccessible *accessible, DBusMessageIter *iter)
1395 DBusMessageIter iter_array;
1397 dbus_uint32_t *states;
1399 dbus_message_iter_recurse (iter, &iter_array);
1400 dbus_message_iter_get_fixed_array (&iter_array, &states, &count);
1403 g_warning ("AT-SPI: expected 2 values in states array; got %d\n", count);
1404 if (!accessible->states)
1405 accessible->states = _atspi_state_set_new_internal (accessible, 0);
1409 guint64 val = ((guint64)states [1]) << 32;
1411 if (!accessible->states)
1412 accessible->states = _atspi_state_set_new_internal (accessible, val);
1414 accessible->states->states = val;
1416 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_STATES);
1420 _atspi_error_quark (void)
1422 return g_quark_from_static_string ("atspi_error");
1426 * Gets the IOR from the XDisplay.
1430 get_accessibility_bus_address_x11 (void)
1434 Display *bridge_display = NULL;
1437 unsigned char *data_x11 = NULL;
1438 unsigned long nitems;
1439 unsigned long leftover;
1442 display_name = spi_display_name ();
1446 bridge_display = XOpenDisplay (display_name);
1447 g_free (display_name);
1449 if (!bridge_display)
1451 g_warning ("Could not open X display");
1455 AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
1456 XGetWindowProperty (bridge_display,
1457 XDefaultRootWindow (bridge_display),
1459 (long) BUFSIZ, False,
1460 (Atom) 31, &actual_type, &actual_format,
1461 &nitems, &leftover, &data_x11);
1462 XCloseDisplay (bridge_display);
1464 data = g_strdup ((gchar *)data_x11);
1471 get_accessibility_bus_address_dbus (void)
1473 DBusConnection *session_bus = NULL;
1474 DBusMessage *message;
1477 char *address = NULL;
1479 session_bus = dbus_bus_get (DBUS_BUS_SESSION, NULL);
1483 message = dbus_message_new_method_call ("org.a11y.Bus",
1488 dbus_error_init (&error);
1489 reply = dbus_connection_send_with_reply_and_block (session_bus,
1493 dbus_message_unref (message);
1497 g_warning ("Error retrieving accessibility bus address: %s: %s",
1498 error.name, error.message);
1499 dbus_error_free (&error);
1504 const char *tmp_address;
1505 if (!dbus_message_get_args (reply,
1511 dbus_message_unref (reply);
1514 address = g_strdup (tmp_address);
1515 dbus_message_unref (reply);
1521 static DBusConnection *a11y_bus;
1522 static dbus_int32_t a11y_dbus_slot = -1;
1525 a11y_bus_free (void *data)
1527 if (data == a11y_bus)
1530 dbus_connection_free_data_slot (&a11y_dbus_slot);
1535 * atspi_get_a11y_bus: (skip)
1538 atspi_get_a11y_bus (void)
1541 char *address = NULL;
1543 if (a11y_bus && dbus_connection_get_is_connected (a11y_bus))
1546 if (a11y_dbus_slot == -1)
1547 if (!dbus_connection_allocate_data_slot (&a11y_dbus_slot))
1548 g_warning ("at-spi: Unable to allocate D-Bus slot");
1551 address = get_accessibility_bus_address_x11 ();
1554 address = get_accessibility_bus_address_dbus ();
1558 dbus_error_init (&error);
1559 a11y_bus = dbus_connection_open_private (address, &error);
1564 g_warning ("Couldn't connect to accessibility bus: %s", error.message);
1565 dbus_error_free (&error);
1570 if (!dbus_bus_register (a11y_bus, &error))
1572 g_warning ("Couldn't register with accessibility bus: %s", error.message);
1573 dbus_error_free (&error);
1574 dbus_connection_close (a11y_bus);
1575 dbus_connection_unref (a11y_bus);
1581 /* Simulate a weak ref on the bus */
1582 dbus_connection_set_data (a11y_bus, a11y_dbus_slot, a11y_bus, a11y_bus_free);
1588 * atspi_set_timeout:
1589 * @val: The timeout value, in milliseconds, or -1 to disable the timeout.
1590 * @startup_time: The amount of time, in milliseconds, to allow to pass
1591 * before enforcing timeouts on an application. Can be used to prevent
1592 * timeout exceptions if an application is likely to block for an extended
1593 * period of time on initialization. -1 can be passed to disable this
1596 * Set the timeout used for method calls. If this is not set explicitly,
1597 * a default of 0.8 ms is used.
1598 * Note that at-spi2-registryd currently uses a timeout of 3 seconds when
1599 * sending a keyboard event notification. This means that, if an AT makes
1600 * a call in response to the keyboard notification and the application
1601 * being called does not respond before the timeout is reached,
1602 * at-spi2-registryd will time out on the keyboard event notification and
1603 * pass the key onto the application (ie, reply to indicate that the key
1604 * was not consumed), so this may make it undesirable to set a timeout
1605 * larger than 3 seconds.
1607 * By default, the normal timeout is set to 800 ms, and the application startup
1608 * timeout is set to 15 seconds.
1611 atspi_set_timeout (gint val, gint startup_time)
1613 method_call_timeout = val;
1614 app_startup_time = startup_time;
1618 * atspi_set_main_context:
1619 * @cnx: The #GMainContext to use.
1621 * Sets the main loop context that AT-SPI should assume is in use when
1622 * setting an idle callback.
1623 * This function should be called by application-side implementors (ie,
1624 * at-spi2-atk) when it is desirable to re-enter the main loop.
1627 atspi_set_main_context (GMainContext *cnx)
1629 if (atspi_main_context == cnx)
1631 if (process_deferred_messages_source != NULL)
1633 g_source_destroy (process_deferred_messages_source);
1634 process_deferred_messages_source = g_idle_source_new ();
1635 g_source_set_callback (process_deferred_messages_source,
1636 process_deferred_messages_callback, NULL, NULL);
1637 g_source_attach (process_deferred_messages_source, cnx);
1638 g_source_unref (process_deferred_messages_source);
1640 atspi_main_context = cnx;
1641 atspi_dbus_connection_setup_with_g_main (atspi_get_a11y_bus (), cnx);
1644 #ifdef DEBUG_REF_COUNTS
1646 print_disposed (gpointer key, gpointer value, gpointer data)
1648 AtspiAccessible *accessible = key;
1649 if (accessible->parent.app)
1651 g_print ("disposed: %s %d\n", accessible->name, accessible->role);
1657 g_hash_table_foreach (live_refs, print_disposed, NULL);
1662 _atspi_name_compat (gchar *name)
1676 * atspi_role_get_name:
1677 * @role: an #AtspiRole object to query.
1679 * Gets a localizable string that indicates the name of an #AtspiRole.
1680 * <em>DEPRECATED.</em>
1682 * Returns: a localizable string name for an #AtspiRole enumerated type.
1685 atspi_role_get_name (AtspiRole role)
1687 gchar *retval = NULL;
1688 GTypeClass *type_class;
1691 type_class = g_type_class_ref (ATSPI_TYPE_ROLE);
1692 g_return_val_if_fail (G_IS_ENUM_CLASS (type_class), NULL);
1694 value = g_enum_get_value (G_ENUM_CLASS (type_class), role);
1698 retval = g_strdup (value->value_nick);
1701 g_type_class_unref (type_class);
1704 return _atspi_name_compat (retval);
1710 _atspi_dbus_update_cache_from_dict (AtspiAccessible *accessible, DBusMessageIter *iter)
1712 GHashTable *cache = _atspi_accessible_ref_cache (accessible);
1713 DBusMessageIter iter_dict, iter_dict_entry, iter_struct, iter_variant;
1715 dbus_message_iter_recurse (iter, &iter_dict);
1716 while (dbus_message_iter_get_arg_type (&iter_dict) != DBUS_TYPE_INVALID)
1720 dbus_message_iter_recurse (&iter_dict, &iter_dict_entry);
1721 dbus_message_iter_get_basic (&iter_dict_entry, &key);
1722 dbus_message_iter_next (&iter_dict_entry);
1723 dbus_message_iter_recurse (&iter_dict_entry, &iter_variant);
1724 if (!strcmp (key, "interfaces"))
1726 _atspi_dbus_set_interfaces (accessible, &iter_variant);
1728 else if (!strcmp (key, "Attributes"))
1730 char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
1731 val = g_new0 (GValue, 1);;
1732 g_value_init (val, G_TYPE_HASH_TABLE);
1733 if (strcmp (iter_sig, "a{ss}") != 0)
1735 dbus_free (iter_sig);
1738 dbus_free (iter_sig);
1739 g_value_take_boxed (val, _atspi_dbus_hash_from_iter (&iter_variant));
1741 else if (!strcmp (key, "Component.ScreenExtents"))
1745 char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
1746 val = g_new0 (GValue, 1);;
1747 g_value_init (val, ATSPI_TYPE_RECT);
1748 if (strcmp (iter_sig, "(iiii)") != 0)
1750 dbus_free (iter_sig);
1753 dbus_free (iter_sig);
1754 dbus_message_iter_recurse (&iter_variant, &iter_struct);
1755 dbus_message_iter_get_basic (&iter_struct, &d_int);
1757 dbus_message_iter_next (&iter_struct);
1758 dbus_message_iter_get_basic (&iter_struct, &d_int);
1760 dbus_message_iter_next (&iter_struct);
1761 dbus_message_iter_get_basic (&iter_struct, &d_int);
1762 extents.width = d_int;
1763 dbus_message_iter_next (&iter_struct);
1764 dbus_message_iter_get_basic (&iter_struct, &d_int);
1765 extents.height = d_int;
1766 g_value_set_boxed (val, &extents);
1769 g_hash_table_insert (cache, g_strdup (key), val);
1770 dbus_message_iter_next (&iter_dict);
1777 _atspi_get_allow_sync ()
1783 _atspi_set_allow_sync (gboolean val)
1785 gboolean ret = allow_sync;
1792 _atspi_set_error_no_sync (GError **error)
1794 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_SYNC_NOT_ALLOWED,
1795 _("Attempted synchronous call where prohibited"));