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);
158 /* TODO: Do we need this code, or should we just dispose the desktop? */
159 for (i = desktop->children->len - 1; i >= 0; i--)
161 AtspiAccessible *child = g_ptr_array_index (desktop->children, i);
162 g_object_run_dispose (G_OBJECT (child->parent.app));
163 g_object_run_dispose (G_OBJECT (child));
166 g_object_run_dispose (G_OBJECT (desktop->parent.app));
167 g_object_unref (desktop);
171 static gboolean atspi_inited = FALSE;
173 static GHashTable *app_hash = NULL;
176 handle_get_bus_address (DBusPendingCall *pending, void *user_data)
178 AtspiApplication *app = user_data;
179 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
180 DBusMessage *message;
182 DBusPendingCall *new_pending;
184 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_METHOD_RETURN)
186 if (dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &address,
187 DBUS_TYPE_INVALID) && address [0])
192 dbus_error_init (&error);
193 bus = dbus_connection_open_private (address, &error);
198 dbus_connection_unref (app->bus);
204 g_warning ("Unable to open bus connection: %s", error.message);
205 dbus_error_free (&error);
209 dbus_message_unref (reply);
210 dbus_pending_call_unref (pending);
213 return; /* application has gone away / been disposed */
215 message = dbus_message_new_method_call (app->bus_name,
216 "/org/a11y/atspi/cache",
217 atspi_interface_cache, "GetItems");
219 dbus_connection_send_with_reply (app->bus, message, &new_pending, 2000);
220 dbus_message_unref (message);
223 dbus_pending_call_set_notify (new_pending, handle_get_items, app, NULL);
226 static AtspiApplication *
227 get_application (const char *bus_name)
229 AtspiApplication *app = NULL;
231 DBusMessage *message;
232 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 dbus_connection_send_with_reply (app->bus, message, &pending, 2000);
254 dbus_message_unref (message);
257 g_hash_table_remove (app_hash, bus_name_dup);
260 dbus_pending_call_set_notify (pending, handle_get_bus_address, app, NULL);
264 static AtspiAccessible *
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 g_ptr_array_add (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);
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;
427 gboolean children_cached = FALSE;
428 dbus_int32_t count, index;
430 dbus_message_iter_recurse (iter, &iter_struct);
433 get_reference_from_iter (&iter_struct, &app_name, &path);
434 accessible = ref_accessible (app_name, path);
438 /* Get application: TODO */
439 dbus_message_iter_next (&iter_struct);
442 get_reference_from_iter (&iter_struct, &app_name, &path);
443 if (accessible->accessible_parent)
444 g_object_unref (accessible->accessible_parent);
445 accessible->accessible_parent = ref_accessible (app_name, path);
447 if (dbus_message_iter_get_arg_type (&iter_struct) == 'i')
449 /* Get index in parent */
450 dbus_message_iter_get_basic (&iter_struct, &index);
451 if (index >= 0 && accessible->accessible_parent)
453 if (index >= accessible->accessible_parent->children->len)
454 g_ptr_array_set_size (accessible->accessible_parent->children, index + 1);
455 g_ptr_array_index (accessible->accessible_parent->children, index) = g_object_ref (accessible);
458 /* get child count */
459 dbus_message_iter_next (&iter_struct);
460 dbus_message_iter_get_basic (&iter_struct, &count);
463 g_ptr_array_set_size (accessible->children, count);
464 children_cached = TRUE;
467 else if (dbus_message_iter_get_arg_type (&iter_struct) == 'a')
469 /* It's the old API with a list of children */
470 /* TODO: Perhaps remove this code eventually */
471 dbus_message_iter_recurse (&iter_struct, &iter_array);
472 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
474 AtspiAccessible *child;
475 get_reference_from_iter (&iter_array, &app_name, &path);
476 child = ref_accessible (app_name, path);
477 g_ptr_array_remove (accessible->children, child);
478 g_ptr_array_add (accessible->children, child);
480 children_cached = TRUE;
484 dbus_message_iter_next (&iter_struct);
485 _atspi_dbus_set_interfaces (accessible, &iter_struct);
486 dbus_message_iter_next (&iter_struct);
489 if (accessible->name)
490 g_free (accessible->name);
491 dbus_message_iter_get_basic (&iter_struct, &name);
492 accessible->name = g_strdup (name);
493 dbus_message_iter_next (&iter_struct);
496 dbus_message_iter_get_basic (&iter_struct, &role);
497 accessible->role = role;
498 dbus_message_iter_next (&iter_struct);
501 if (accessible->description)
502 g_free (accessible->description);
503 dbus_message_iter_get_basic (&iter_struct, &description);
504 accessible->description = g_strdup (description);
505 dbus_message_iter_next (&iter_struct);
507 _atspi_dbus_set_state (accessible, &iter_struct);
508 dbus_message_iter_next (&iter_struct);
510 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_NAME | ATSPI_CACHE_ROLE |
511 ATSPI_CACHE_PARENT | ATSPI_CACHE_DESCRIPTION);
512 if (!atspi_state_set_contains (accessible->states,
513 ATSPI_STATE_MANAGES_DESCENDANTS) &&
515 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_CHILDREN);
517 /* This is a bit of a hack since the cache holds a ref, so we don't need
518 * the one provided for us anymore */
519 g_object_unref (accessible);
523 handle_get_items (DBusPendingCall *pending, void *user_data)
525 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
526 DBusMessageIter iter, iter_array;
528 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
530 const char *sender = dbus_message_get_sender (reply);
531 const char *error = NULL;
532 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &error,
534 g_warning ("AT-SPI: Error in GetItems, sender=%s, error=%s", sender, error);
535 dbus_message_unref (reply);
536 dbus_pending_call_unref (pending);
540 dbus_message_iter_init (reply, &iter);
541 dbus_message_iter_recurse (&iter, &iter_array);
542 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
544 add_accessible_from_iter (&iter_array);
545 dbus_message_iter_next (&iter_array);
547 dbus_message_unref (reply);
548 dbus_pending_call_unref (pending);
551 /* TODO: Do we stil need this function? */
552 static AtspiAccessible *
553 ref_accessible_desktop (AtspiApplication *app)
556 DBusMessage *message, *reply;
557 DBusMessageIter iter, iter_array;
562 g_object_ref (desktop);
565 desktop = _atspi_accessible_new (app, atspi_path_root);
570 g_hash_table_insert (app->hash, g_strdup (desktop->parent.path),
571 g_object_ref (desktop));
572 app->root = g_object_ref (desktop);
573 desktop->name = g_strdup ("main");
574 message = dbus_message_new_method_call (atspi_bus_registry,
576 atspi_interface_accessible,
581 reply = _atspi_dbus_send_with_reply_and_block (message, &error);
582 if (!reply || strcmp (dbus_message_get_signature (reply), "a(so)") != 0)
586 g_warning ("Couldn't get application list: %s", error->message);
587 g_clear_error (&error);
590 dbus_message_unref (reply);
593 dbus_message_iter_init (reply, &iter);
594 dbus_message_iter_recurse (&iter, &iter_array);
595 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
597 const char *app_name, *path;
598 get_reference_from_iter (&iter_array, &app_name, &path);
599 add_app_to_desktop (desktop, app_name);
601 dbus_message_unref (reply);
603 /* Record the alternate name as an alias for org.a11y.atspi.Registry */
604 bus_name_dup = g_strdup (dbus_message_get_sender (reply));
606 g_hash_table_insert (app_hash, bus_name_dup, app);
608 return g_object_ref (desktop);
612 _atspi_ref_accessible (const char *app, const char *path)
614 AtspiApplication *a = get_application (app);
617 if ( APP_IS_REGISTRY(a))
620 g_object_unref (ref_accessible_desktop (a)); /* sets a->root */
621 return g_object_ref (a->root);
623 return ref_accessible (app, path);
627 _atspi_dbus_return_accessible_from_message (DBusMessage *message)
629 DBusMessageIter iter;
630 AtspiAccessible *retval = NULL;
631 const char *signature;
636 signature = dbus_message_get_signature (message);
637 if (!strcmp (signature, "(so)"))
639 dbus_message_iter_init (message, &iter);
640 retval = _atspi_dbus_return_accessible_from_iter (&iter);
644 g_warning ("AT-SPI: Called _atspi_dbus_return_accessible_from_message with strange signature %s", signature);
646 dbus_message_unref (message);
651 _atspi_dbus_return_accessible_from_iter (DBusMessageIter *iter)
653 const char *app_name, *path;
655 get_reference_from_iter (iter, &app_name, &path);
656 return ref_accessible (app_name, path);
660 _atspi_dbus_return_hyperlink_from_message (DBusMessage *message)
662 DBusMessageIter iter;
663 AtspiHyperlink *retval = NULL;
664 const char *signature;
669 signature = dbus_message_get_signature (message);
670 if (!strcmp (signature, "(so)"))
672 dbus_message_iter_init (message, &iter);
673 retval = _atspi_dbus_return_hyperlink_from_iter (&iter);
677 g_warning ("AT-SPI: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s", signature);
679 dbus_message_unref (message);
684 _atspi_dbus_return_hyperlink_from_iter (DBusMessageIter *iter)
686 const char *app_name, *path;
688 get_reference_from_iter (iter, &app_name, &path);
689 return ref_hyperlink (app_name, path);
692 const char *cache_signal_type = "((so)(so)(so)iiassusau)";
693 const char *old_cache_signal_type = "((so)(so)(so)a(so)assusau)";
695 static DBusHandlerResult
696 handle_add_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
698 DBusMessageIter iter;
699 const char *signature = dbus_message_get_signature (message);
701 if (strcmp (signature, cache_signal_type) != 0 &&
702 strcmp (signature, old_cache_signal_type) != 0)
704 g_warning ("AT-SPI: AddAccessible with unknown signature %s\n", signature);
705 return DBUS_HANDLER_RESULT_HANDLED;
708 dbus_message_iter_init (message, &iter);
709 add_accessible_from_iter (&iter);
710 return DBUS_HANDLER_RESULT_HANDLED;
716 DBusMessage *message;
720 static GSource *process_deferred_messages_source = NULL;
723 process_deferred_message (BusDataClosure *closure)
725 int type = dbus_message_get_type (closure->message);
726 const char *interface = dbus_message_get_interface (closure->message);
728 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
729 !strncmp (interface, "org.a11y.atspi.Event.", 21))
731 _atspi_dbus_handle_event (closure->bus, closure->message, closure->data);
733 if (dbus_message_is_method_call (closure->message, atspi_interface_device_event_listener, "NotifyEvent"))
735 _atspi_dbus_handle_DeviceEvent (closure->bus,
736 closure->message, closure->data);
738 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "AddAccessible"))
740 handle_add_accessible (closure->bus, closure->message, closure->data);
742 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "RemoveAccessible"))
744 handle_remove_accessible (closure->bus, closure->message, closure->data);
746 if (dbus_message_is_signal (closure->message, "org.freedesktop.DBus", "NameOwnerChanged"))
748 handle_name_owner_changed (closure->bus, closure->message, closure->data);
752 static GQueue *deferred_messages = NULL;
755 process_deferred_messages (void)
757 static int in_process_deferred_messages = 0;
758 BusDataClosure *closure;
760 if (in_process_deferred_messages)
762 in_process_deferred_messages = 1;
763 while ((closure = g_queue_pop_head (deferred_messages)))
765 process_deferred_message (closure);
766 dbus_message_unref (closure->message);
767 dbus_connection_unref (closure->bus);
770 in_process_deferred_messages = 0;
775 process_deferred_messages_callback (gpointer data)
777 if (process_deferred_messages ())
778 return G_SOURCE_CONTINUE;
780 process_deferred_messages_source = NULL;
781 return G_SOURCE_REMOVE;
784 static DBusHandlerResult
785 defer_message (DBusConnection *connection, DBusMessage *message, void *user_data)
787 BusDataClosure *closure = g_new (BusDataClosure, 1);
789 closure->bus = dbus_connection_ref (bus);
790 closure->message = dbus_message_ref (message);
791 closure->data = user_data;
793 g_queue_push_tail (deferred_messages, closure);
795 if (process_deferred_messages_source == NULL)
797 process_deferred_messages_source = g_idle_source_new ();
798 g_source_set_callback (process_deferred_messages_source,
799 process_deferred_messages_callback, NULL, NULL);
800 g_source_attach (process_deferred_messages_source, atspi_main_context);
801 g_source_unref (process_deferred_messages_source);
804 return DBUS_HANDLER_RESULT_HANDLED;
807 static DBusHandlerResult
808 atspi_dbus_filter (DBusConnection *bus, DBusMessage *message, void *data)
810 int type = dbus_message_get_type (message);
811 const char *interface = dbus_message_get_interface (message);
813 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
814 !strncmp (interface, "org.a11y.atspi.Event.", 21))
816 return defer_message (bus, message, data);
818 if (dbus_message_is_method_call (message, atspi_interface_device_event_listener, "NotifyEvent"))
820 return defer_message (bus, message, data);
822 if (dbus_message_is_signal (message, atspi_interface_cache, "AddAccessible"))
824 return defer_message (bus, message, data);
826 if (dbus_message_is_signal (message, atspi_interface_cache, "RemoveAccessible"))
828 return defer_message (bus, message, data);
830 if (dbus_message_is_signal (message, "org.freedesktop.DBus", "NameOwnerChanged"))
832 defer_message (bus, message, data);
833 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
835 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
839 * Returns a 'canonicalized' value for DISPLAY,
840 * with the screen number stripped off if present.
842 * TODO: Avoid having duplicate functions for this here and in at-spi2-atk
845 spi_display_name (void)
847 char *canonical_display_name = NULL;
848 const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
852 display_env = g_getenv ("DISPLAY");
853 if (!display_env || !display_env[0])
857 gchar *display_p, *screen_p;
858 canonical_display_name = g_strdup (display_env);
859 display_p = g_utf8_strrchr (canonical_display_name, -1, ':');
860 screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
861 if (screen_p && display_p && (screen_p > display_p))
869 canonical_display_name = g_strdup (display_env);
872 return canonical_display_name;
878 * Connects to the accessibility registry and initializes the SPI.
880 * Returns: 0 on success, 1 if already initialized, or an integer error code.
886 const gchar *no_cache;
895 _atspi_get_live_refs();
897 bus = atspi_get_a11y_bus ();
900 dbus_bus_register (bus, NULL);
901 atspi_dbus_connection_setup_with_g_main(bus, g_main_context_default());
902 dbus_connection_add_filter (bus, atspi_dbus_filter, NULL, NULL);
903 match = g_strdup_printf ("type='signal',interface='%s',member='AddAccessible'", atspi_interface_cache);
904 dbus_bus_add_match (bus, match, NULL);
906 match = g_strdup_printf ("type='signal',interface='%s',member='RemoveAccessible'", atspi_interface_cache);
907 dbus_bus_add_match (bus, match, NULL);
909 match = g_strdup_printf ("type='signal',interface='%s',member='ChildrenChanged'", atspi_interface_event_object);
910 dbus_bus_add_match (bus, match, NULL);
912 match = g_strdup_printf ("type='signal',interface='%s',member='PropertyChange'", atspi_interface_event_object);
913 dbus_bus_add_match (bus, match, NULL);
915 match = g_strdup_printf ("type='signal',interface='%s',member='StateChanged'", atspi_interface_event_object);
916 dbus_bus_add_match (bus, match, NULL);
919 dbus_bus_add_match (bus,
920 "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged'",
923 no_cache = g_getenv ("ATSPI_NO_CACHE");
924 if (no_cache && g_strcmp0 (no_cache, "0") != 0)
925 atspi_no_cache = TRUE;
927 deferred_messages = g_queue_new ();
933 * atspi_is_initialized:
935 * Indicates whether AT-SPI has been initialized.
937 * Returns: %True if initialized; %False otherwise.
940 atspi_is_initialized ()
948 * Starts/enters the main event loop for the AT-SPI services.
950 * NOTE: This method does not return control; it is exited via a call to
951 * #atspi_event_quit from within an event handler.
955 atspi_event_main (void)
957 atspi_main_loop = g_main_loop_new (NULL, FALSE);
958 g_main_loop_run (atspi_main_loop);
959 atspi_main_loop = NULL;
965 * Quits the last main event loop for the AT-SPI services,
966 * See: #atspi_event_main
969 atspi_event_quit (void)
971 g_main_loop_quit (atspi_main_loop);
977 * Disconnects from #AtspiRegistry instances and releases
978 * any floating resources. Call only once at exit.
980 * Returns: 0 if there were no leaks, otherwise other integer values.
992 atspi_inited = FALSE;
996 leaked = g_hash_table_size (live_refs);
1008 static GSList *hung_processes;
1011 remove_hung_process (DBusPendingCall *pending, void *data)
1014 hung_processes = g_slist_remove (hung_processes, data);
1016 dbus_pending_call_unref (pending);
1020 check_for_hang (DBusMessage *message, DBusError *error, DBusConnection *bus, const char *bus_name)
1022 if (!message && error->name &&
1023 !strcmp (error->name, "org.freedesktop.DBus.Error.NoReply"))
1026 DBusMessage *message;
1027 gchar *bus_name_dup;
1028 DBusPendingCall *pending = NULL;
1029 for (l = hung_processes; l; l = l->next)
1030 if (!strcmp (l->data, bus_name))
1032 message = dbus_message_new_method_call (bus_name, "/",
1033 "org.freedesktop.DBus.Peer",
1037 dbus_connection_send_with_reply (bus, message, &pending, -1);
1038 dbus_message_unref (message);
1041 bus_name_dup = g_strdup (bus_name);
1042 hung_processes = g_slist_append (hung_processes, bus_name_dup);
1043 dbus_pending_call_set_notify (pending, remove_hung_process, bus_name_dup, NULL);
1048 connection_is_hung (const char *bus_name)
1052 for (l = hung_processes; l; l = l->next)
1053 if (!strcmp (l->data, bus_name))
1059 check_app (AtspiApplication *app, GError **error)
1061 if (!app || !app->bus)
1063 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
1064 _("The application no longer exists"));
1068 if (atspi_main_loop && connection_is_hung (app->bus_name))
1070 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC,
1071 "The process appears to be hung.");
1079 set_timeout (AtspiApplication *app)
1084 if (app && app_startup_time > 0)
1086 gettimeofday (&tv, NULL);
1087 diff = (tv.tv_sec - app->time_added.tv_sec) * 1000 + (tv.tv_usec - app->time_added.tv_usec) / 1000;
1088 dbind_set_timeout (MAX(method_call_timeout, app_startup_time - diff));
1091 dbind_set_timeout (method_call_timeout);
1095 _atspi_dbus_call (gpointer obj, const char *interface, const char *method, GError **error, const char *type, ...)
1100 AtspiObject *aobj = ATSPI_OBJECT (obj);
1102 if (!check_app (aobj->app, error))
1107 _atspi_set_error_no_sync (error);
1111 va_start (args, type);
1112 dbus_error_init (&err);
1113 set_timeout (aobj->app);
1114 retval = dbind_method_call_reentrant_va (aobj->app->bus, aobj->app->bus_name,
1115 aobj->path, interface, method, &err,
1118 check_for_hang (NULL, &err, aobj->app->bus, aobj->app->bus_name);
1119 process_deferred_messages ();
1120 if (dbus_error_is_set (&err))
1122 g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "%s", err.message);
1123 dbus_error_free (&err);
1129 _atspi_dbus_call_partial (gpointer obj,
1130 const char *interface,
1133 const char *type, ...)
1137 va_start (args, type);
1138 return _atspi_dbus_call_partial_va (obj, interface, method, error, type, args);
1143 _atspi_dbus_call_partial_va (gpointer obj,
1144 const char *interface,
1150 AtspiObject *aobj = ATSPI_OBJECT (obj);
1152 DBusMessage *msg = NULL, *reply = NULL;
1153 DBusMessageIter iter;
1156 dbus_error_init (&err);
1158 if (!check_app (aobj->app, error))
1161 msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
1166 dbus_message_iter_init_append (msg, &iter);
1167 dbind_any_marshal_va (&iter, &p, args);
1169 set_timeout (aobj->app);
1170 reply = dbind_send_and_allow_reentry (aobj->app->bus, msg, &err);
1171 check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
1175 dbus_message_unref (msg);
1176 process_deferred_messages ();
1177 if (dbus_error_is_set (&err))
1179 /* TODO: Set gerror */
1180 dbus_error_free (&err);
1183 if (reply && dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
1185 const char *err_str = NULL;
1186 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
1188 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
1189 dbus_message_unref (reply);
1197 _atspi_dbus_get_property (gpointer obj, const char *interface, const char *name, GError **error, const char *type, void *data)
1199 DBusMessage *message, *reply;
1200 DBusMessageIter iter, iter_variant;
1202 dbus_bool_t retval = FALSE;
1203 AtspiObject *aobj = ATSPI_OBJECT (obj);
1204 char expected_type = (type [0] == '(' ? 'r' : type [0]);
1209 if (!check_app (aobj->app, error))
1214 _atspi_set_error_no_sync (error);
1218 message = dbus_message_new_method_call (aobj->app->bus_name,
1220 "org.freedesktop.DBus.Properties",
1224 // TODO: throw exception
1227 dbus_message_append_args (message, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID);
1228 dbus_error_init (&err);
1229 set_timeout (aobj->app);
1230 reply = dbind_send_and_allow_reentry (aobj->app->bus, message, &err);
1231 check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
1232 dbus_message_unref (message);
1233 process_deferred_messages ();
1236 // TODO: throw exception
1240 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
1242 const char *err_str = NULL;
1243 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
1245 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
1249 dbus_message_iter_init (reply, &iter);
1250 if (dbus_message_iter_get_arg_type (&iter) != 'v')
1252 g_warning ("AT-SPI: expected a variant when fetching %s from interface %s; got %s\n", name, interface, dbus_message_get_signature (reply));
1255 dbus_message_iter_recurse (&iter, &iter_variant);
1256 if (dbus_message_iter_get_arg_type (&iter_variant) != expected_type)
1258 g_warning ("atspi_dbus_get_property: Wrong type: expected %s, got %c\n", type, dbus_message_iter_get_arg_type (&iter_variant));
1261 if (!strcmp (type, "(so)"))
1263 *((AtspiAccessible **)data) = _atspi_dbus_return_accessible_from_iter (&iter_variant);
1267 dbus_message_iter_get_basic (&iter_variant, data);
1268 if (type [0] == 's')
1269 *(char **)data = g_strdup (*(char **)data);
1273 dbus_error_free (&err);
1275 dbus_message_unref (reply);
1280 _atspi_dbus_send_with_reply_and_block (DBusMessage *message, GError **error)
1284 AtspiApplication *app;
1285 DBusConnection *bus;
1287 app = get_application (dbus_message_get_destination (message));
1289 if (app && !app->bus)
1290 return NULL; /* will fail anyway; app has been disposed */
1292 bus = (app ? app->bus : _atspi_bus());
1293 dbus_error_init (&err);
1295 reply = dbind_send_and_allow_reentry (bus, message, &err);
1296 process_deferred_messages ();
1297 dbus_message_unref (message);
1298 if (dbus_error_is_set (&err))
1301 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err.message);
1302 dbus_error_free (&err);
1308 _atspi_dbus_return_hash_from_message (DBusMessage *message)
1310 DBusMessageIter iter;
1316 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1318 dbus_message_iter_init (message, &iter);
1319 ret = _atspi_dbus_hash_from_iter (&iter);
1320 dbus_message_unref (message);
1325 _atspi_dbus_hash_from_iter (DBusMessageIter *iter)
1327 GHashTable *hash = g_hash_table_new_full (g_str_hash, g_str_equal,
1328 (GDestroyNotify) g_free,
1329 (GDestroyNotify) g_free);
1330 DBusMessageIter iter_array, iter_dict;
1332 dbus_message_iter_recurse (iter, &iter_array);
1333 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1335 const char *name, *value;
1336 dbus_message_iter_recurse (&iter_array, &iter_dict);
1337 dbus_message_iter_get_basic (&iter_dict, &name);
1338 dbus_message_iter_next (&iter_dict);
1339 dbus_message_iter_get_basic (&iter_dict, &value);
1340 g_hash_table_insert (hash, g_strdup (name), g_strdup (value));
1341 dbus_message_iter_next (&iter_array);
1347 _atspi_dbus_return_attribute_array_from_message (DBusMessage *message)
1349 DBusMessageIter iter;
1355 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1357 dbus_message_iter_init (message, &iter);
1359 ret = _atspi_dbus_attribute_array_from_iter (&iter);
1360 dbus_message_unref (message);
1365 _atspi_dbus_attribute_array_from_iter (DBusMessageIter *iter)
1367 DBusMessageIter iter_array, iter_dict;
1368 GArray *array = g_array_new (TRUE, TRUE, sizeof (gchar *));
1370 dbus_message_iter_recurse (iter, &iter_array);
1371 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1373 const char *name, *value;
1375 dbus_message_iter_recurse (&iter_array, &iter_dict);
1376 dbus_message_iter_get_basic (&iter_dict, &name);
1377 dbus_message_iter_next (&iter_dict);
1378 dbus_message_iter_get_basic (&iter_dict, &value);
1379 str = g_strdup_printf ("%s:%s", name, value);
1380 array = g_array_append_val (array, str);
1381 dbus_message_iter_next (&iter_array);;
1387 _atspi_dbus_set_interfaces (AtspiAccessible *accessible, DBusMessageIter *iter)
1389 DBusMessageIter iter_array;
1390 char *iter_sig = dbus_message_iter_get_signature (iter);
1392 accessible->interfaces = 0;
1393 if (strcmp (iter_sig, "as") != 0)
1395 g_warning ("_atspi_dbus_set_interfaces: Passed iterator with invalid signature %s", dbus_message_iter_get_signature (iter));
1396 dbus_free (iter_sig);
1399 dbus_free (iter_sig);
1400 dbus_message_iter_recurse (iter, &iter_array);
1401 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1405 dbus_message_iter_get_basic (&iter_array, &iface);
1406 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable")) continue;
1407 n = _atspi_get_iface_num (iface);
1410 g_warning ("AT-SPI: Unknown interface %s", iface);
1413 accessible->interfaces |= (1 << n);
1414 dbus_message_iter_next (&iter_array);
1416 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_INTERFACES);
1420 _atspi_dbus_set_state (AtspiAccessible *accessible, DBusMessageIter *iter)
1422 DBusMessageIter iter_array;
1424 dbus_uint32_t *states;
1426 dbus_message_iter_recurse (iter, &iter_array);
1427 dbus_message_iter_get_fixed_array (&iter_array, &states, &count);
1430 g_warning ("AT-SPI: expected 2 values in states array; got %d\n", count);
1431 if (!accessible->states)
1432 accessible->states = _atspi_state_set_new_internal (accessible, 0);
1436 guint64 val = ((guint64)states [1]) << 32;
1438 if (!accessible->states)
1439 accessible->states = _atspi_state_set_new_internal (accessible, val);
1441 accessible->states->states = val;
1443 _atspi_accessible_add_cache (accessible, ATSPI_CACHE_STATES);
1447 _atspi_error_quark (void)
1449 return g_quark_from_static_string ("atspi_error");
1453 * Gets the IOR from the XDisplay.
1457 get_accessibility_bus_address_x11 (void)
1461 Display *bridge_display = NULL;
1464 unsigned char *data_x11 = NULL;
1465 unsigned long nitems;
1466 unsigned long leftover;
1469 display_name = spi_display_name ();
1473 bridge_display = XOpenDisplay (display_name);
1474 g_free (display_name);
1476 if (!bridge_display)
1478 g_warning ("Could not open X display");
1482 AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
1483 XGetWindowProperty (bridge_display,
1484 XDefaultRootWindow (bridge_display),
1486 (long) BUFSIZ, False,
1487 (Atom) 31, &actual_type, &actual_format,
1488 &nitems, &leftover, &data_x11);
1489 XCloseDisplay (bridge_display);
1491 data = g_strdup ((gchar *)data_x11);
1498 get_accessibility_bus_address_dbus (void)
1500 DBusConnection *session_bus = NULL;
1501 DBusMessage *message;
1504 char *address = NULL;
1506 session_bus = dbus_bus_get (DBUS_BUS_SESSION, NULL);
1510 message = dbus_message_new_method_call ("org.a11y.Bus",
1515 dbus_error_init (&error);
1516 reply = dbus_connection_send_with_reply_and_block (session_bus,
1520 dbus_message_unref (message);
1524 g_warning ("Error retrieving accessibility bus address: %s: %s",
1525 error.name, error.message);
1526 dbus_error_free (&error);
1531 const char *tmp_address;
1532 if (!dbus_message_get_args (reply,
1538 dbus_message_unref (reply);
1541 address = g_strdup (tmp_address);
1542 dbus_message_unref (reply);
1548 static DBusConnection *a11y_bus;
1549 static dbus_int32_t a11y_dbus_slot = -1;
1552 a11y_bus_free (void *data)
1554 if (data == a11y_bus)
1557 dbus_connection_free_data_slot (&a11y_dbus_slot);
1562 * atspi_get_a11y_bus: (skip)
1565 atspi_get_a11y_bus (void)
1568 char *address = NULL;
1570 if (a11y_bus && dbus_connection_get_is_connected (a11y_bus))
1573 if (a11y_dbus_slot == -1)
1574 if (!dbus_connection_allocate_data_slot (&a11y_dbus_slot))
1575 g_warning ("at-spi: Unable to allocate D-Bus slot");
1578 address = get_accessibility_bus_address_x11 ();
1581 address = get_accessibility_bus_address_dbus ();
1585 dbus_error_init (&error);
1586 a11y_bus = dbus_connection_open_private (address, &error);
1591 if (!g_getenv("SSH_CONNECTION"))
1592 g_warning ("Couldn't connect to accessibility bus: %s", error.message);
1593 dbus_error_free (&error);
1598 if (!dbus_bus_register (a11y_bus, &error))
1600 g_warning ("Couldn't register with accessibility bus: %s", error.message);
1601 dbus_error_free (&error);
1602 dbus_connection_close (a11y_bus);
1603 dbus_connection_unref (a11y_bus);
1609 /* Simulate a weak ref on the bus */
1610 dbus_connection_set_data (a11y_bus, a11y_dbus_slot, a11y_bus, a11y_bus_free);
1616 * atspi_set_timeout:
1617 * @val: The timeout value, in milliseconds, or -1 to disable the timeout.
1618 * @startup_time: The amount of time, in milliseconds, to allow to pass
1619 * before enforcing timeouts on an application. Can be used to prevent
1620 * timeout exceptions if an application is likely to block for an extended
1621 * period of time on initialization. -1 can be passed to disable this
1624 * Set the timeout used for method calls. If this is not set explicitly,
1625 * a default of 0.8 ms is used.
1626 * Note that at-spi2-registryd currently uses a timeout of 3 seconds when
1627 * sending a keyboard event notification. This means that, if an AT makes
1628 * a call in response to the keyboard notification and the application
1629 * being called does not respond before the timeout is reached,
1630 * at-spi2-registryd will time out on the keyboard event notification and
1631 * pass the key onto the application (ie, reply to indicate that the key
1632 * was not consumed), so this may make it undesirable to set a timeout
1633 * larger than 3 seconds.
1635 * By default, the normal timeout is set to 800 ms, and the application startup
1636 * timeout is set to 15 seconds.
1639 atspi_set_timeout (gint val, gint startup_time)
1641 method_call_timeout = val;
1642 app_startup_time = startup_time;
1646 * atspi_set_main_context:
1647 * @cnx: The #GMainContext to use.
1649 * Sets the main loop context that AT-SPI should assume is in use when
1650 * setting an idle callback.
1651 * This function should be called by application-side implementors (ie,
1652 * at-spi2-atk) when it is desirable to re-enter the main loop.
1655 atspi_set_main_context (GMainContext *cnx)
1657 if (atspi_main_context == cnx)
1659 if (process_deferred_messages_source != NULL)
1661 g_source_destroy (process_deferred_messages_source);
1662 process_deferred_messages_source = g_idle_source_new ();
1663 g_source_set_callback (process_deferred_messages_source,
1664 process_deferred_messages_callback, NULL, NULL);
1665 g_source_attach (process_deferred_messages_source, cnx);
1666 g_source_unref (process_deferred_messages_source);
1668 atspi_main_context = cnx;
1669 atspi_dbus_connection_setup_with_g_main (atspi_get_a11y_bus (), cnx);
1672 #ifdef DEBUG_REF_COUNTS
1674 print_disposed (gpointer key, gpointer value, gpointer data)
1676 AtspiAccessible *accessible = key;
1677 if (accessible->parent.app)
1679 g_print ("disposed: %s %d\n", accessible->name, accessible->role);
1685 g_hash_table_foreach (live_refs, print_disposed, NULL);
1690 _atspi_name_compat (gchar *name)
1704 * atspi_role_get_name:
1705 * @role: an #AtspiRole object to query.
1707 * Gets a localizable string that indicates the name of an #AtspiRole.
1708 * <em>DEPRECATED.</em>
1710 * Returns: a localizable string name for an #AtspiRole enumerated type.
1713 atspi_role_get_name (AtspiRole role)
1715 gchar *retval = NULL;
1716 GTypeClass *type_class;
1719 type_class = g_type_class_ref (ATSPI_TYPE_ROLE);
1720 g_return_val_if_fail (G_IS_ENUM_CLASS (type_class), NULL);
1722 value = g_enum_get_value (G_ENUM_CLASS (type_class), role);
1726 retval = g_strdup (value->value_nick);
1729 g_type_class_unref (type_class);
1732 return _atspi_name_compat (retval);
1738 _atspi_dbus_update_cache_from_dict (AtspiAccessible *accessible, DBusMessageIter *iter)
1740 GHashTable *cache = _atspi_accessible_ref_cache (accessible);
1741 DBusMessageIter iter_dict, iter_dict_entry, iter_struct, iter_variant;
1743 dbus_message_iter_recurse (iter, &iter_dict);
1744 while (dbus_message_iter_get_arg_type (&iter_dict) != DBUS_TYPE_INVALID)
1748 dbus_message_iter_recurse (&iter_dict, &iter_dict_entry);
1749 dbus_message_iter_get_basic (&iter_dict_entry, &key);
1750 dbus_message_iter_next (&iter_dict_entry);
1751 dbus_message_iter_recurse (&iter_dict_entry, &iter_variant);
1752 if (!strcmp (key, "interfaces"))
1754 _atspi_dbus_set_interfaces (accessible, &iter_variant);
1756 else if (!strcmp (key, "Attributes"))
1758 char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
1759 val = g_new0 (GValue, 1);;
1760 g_value_init (val, G_TYPE_HASH_TABLE);
1761 if (strcmp (iter_sig, "a{ss}") != 0)
1763 dbus_free (iter_sig);
1766 dbus_free (iter_sig);
1767 g_value_take_boxed (val, _atspi_dbus_hash_from_iter (&iter_variant));
1769 else if (!strcmp (key, "Component.ScreenExtents"))
1773 char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
1774 val = g_new0 (GValue, 1);;
1775 g_value_init (val, ATSPI_TYPE_RECT);
1776 if (strcmp (iter_sig, "(iiii)") != 0)
1778 dbus_free (iter_sig);
1781 dbus_free (iter_sig);
1782 dbus_message_iter_recurse (&iter_variant, &iter_struct);
1783 dbus_message_iter_get_basic (&iter_struct, &d_int);
1785 dbus_message_iter_next (&iter_struct);
1786 dbus_message_iter_get_basic (&iter_struct, &d_int);
1788 dbus_message_iter_next (&iter_struct);
1789 dbus_message_iter_get_basic (&iter_struct, &d_int);
1790 extents.width = d_int;
1791 dbus_message_iter_next (&iter_struct);
1792 dbus_message_iter_get_basic (&iter_struct, &d_int);
1793 extents.height = d_int;
1794 g_value_set_boxed (val, &extents);
1797 g_hash_table_insert (cache, g_strdup (key), val);
1798 dbus_message_iter_next (&iter_dict);
1805 _atspi_get_allow_sync ()
1811 _atspi_set_allow_sync (gboolean val)
1813 gboolean ret = allow_sync;
1820 _atspi_set_error_no_sync (GError **error)
1822 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_SYNC_NOT_ALLOWED,
1823 _("Attempted synchronous call where prohibited"));