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.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
26 * Basic SPI initialization and event loop function prototypes
30 #include "atspi-private.h"
35 static void handle_get_items (DBusPendingCall *pending, void *user_data);
37 static DBusConnection *bus = NULL;
38 static GHashTable *apps = NULL;
39 static GHashTable *live_refs = NULL;
40 static GQueue *exception_handlers = NULL;
41 static DBusError exception;
43 const char *atspi_path_dec = ATSPI_DBUS_PATH_DEC;
44 const char *atspi_path_registry = ATSPI_DBUS_PATH_REGISTRY;
45 const char *atspi_path_root = ATSPI_DBUS_PATH_ROOT;
46 const char *atspi_bus_registry = ATSPI_DBUS_NAME_REGISTRY;
47 const char *atspi_interface_accessible = ATSPI_DBUS_INTERFACE_ACCESSIBLE;
48 const char *atspi_interface_action = ATSPI_DBUS_INTERFACE_ACTION;
49 const char *atspi_interface_application = ATSPI_DBUS_INTERFACE_APPLICATION;
50 const char *atspi_interface_collection = ATSPI_DBUS_INTERFACE_COLLECTION;
51 const char *atspi_interface_component = ATSPI_DBUS_INTERFACE_COMPONENT;
52 const char *atspi_interface_dec = ATSPI_DBUS_INTERFACE_DEC;
53 const char *atspi_interface_device_event_listener = ATSPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
54 const char *atspi_interface_document = ATSPI_DBUS_INTERFACE_DOCUMENT;
55 const char *atspi_interface_editable_text = ATSPI_DBUS_INTERFACE_EDITABLE_TEXT;
56 const char *atspi_interface_event_object = ATSPI_DBUS_INTERFACE_EVENT_OBJECT;
57 const char *atspi_interface_hyperlink = ATSPI_DBUS_INTERFACE_HYPERLINK;
58 const char *atspi_interface_hypertext = ATSPI_DBUS_INTERFACE_HYPERTEXT;
59 const char *atspi_interface_image = ATSPI_DBUS_INTERFACE_IMAGE;
60 const char *atspi_interface_registry = ATSPI_DBUS_INTERFACE_REGISTRY;
61 const char *atspi_interface_selection = ATSPI_DBUS_INTERFACE_SELECTION;
62 const char *atspi_interface_table = ATSPI_DBUS_INTERFACE_TABLE;
63 const char *atspi_interface_text = ATSPI_DBUS_INTERFACE_TEXT;
64 const char *atspi_interface_cache = ATSPI_DBUS_INTERFACE_CACHE;
65 const char *atspi_interface_value = ATSPI_DBUS_INTERFACE_VALUE;
67 static const char *interfaces[] =
69 ATSPI_DBUS_INTERFACE_ACCESSIBLE,
70 ATSPI_DBUS_INTERFACE_ACTION,
71 ATSPI_DBUS_INTERFACE_APPLICATION,
72 ATSPI_DBUS_INTERFACE_COLLECTION,
73 ATSPI_DBUS_INTERFACE_COMPONENT,
74 ATSPI_DBUS_INTERFACE_DOCUMENT,
75 ATSPI_DBUS_INTERFACE_EDITABLE_TEXT,
76 ATSPI_DBUS_INTERFACE_HYPERLINK,
77 ATSPI_DBUS_INTERFACE_HYPERTEXT,
78 ATSPI_DBUS_INTERFACE_IMAGE,
79 "org.a11y.atspi.LoginHelper",
80 ATSPI_DBUS_INTERFACE_SELECTION,
81 ATSPI_DBUS_INTERFACE_TABLE,
82 ATSPI_DBUS_INTERFACE_TEXT,
83 ATSPI_DBUS_INTERFACE_VALUE,
88 _atspi_get_iface_num (const char *iface)
90 /* TODO: Use a binary search or hash to improve performance */
93 for (i = 0; interfaces[i]; i++)
95 if (!strcmp(iface, interfaces[i])) return i;
105 live_refs = g_hash_table_new (g_direct_hash, g_direct_equal);
110 /* TODO: Add an application parameter */
119 #define APP_IS_REGISTRY(app) (!strcmp (app->bus_name, atspi_bus_registry))
130 g_hash_table_destroy (refs);
134 static gboolean atspi_inited = FALSE;
136 static GHashTable *app_hash = NULL;
139 handle_get_bus_address (DBusPendingCall *pending, void *user_data)
141 AtspiApplication *app = user_data;
142 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
143 DBusMessage *message;
145 DBusPendingCall *new_pending;
147 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_METHOD_RETURN)
149 if (dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &address,
153 dbus_error_init (&error);
154 DBusConnection *bus = dbus_connection_open (address, &error);
158 dbus_connection_unref (app->bus);
163 dbus_message_unref (reply);
164 dbus_pending_call_unref (pending);
166 message = dbus_message_new_method_call (app->bus_name,
167 "/org/a11y/atspi/cache",
168 atspi_interface_cache, "GetItems");
170 dbus_connection_send_with_reply (app->bus, message, &new_pending, 2000);
171 dbus_pending_call_set_notify (new_pending, handle_get_items, app, NULL);
172 dbus_message_unref (message);
175 static AtspiApplication *
176 get_application (const char *bus_name)
178 AtspiApplication *app = NULL;
180 DBusMessage *message;
182 DBusPendingCall *pending = NULL;
186 app_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_hash_table_unref);
187 if (!app_hash) return NULL;
189 app = g_hash_table_lookup (app_hash, bus_name);
191 bus_name_dup = g_strdup (bus_name);
192 if (!bus_name_dup) return NULL;
193 // TODO: change below to something that will send state-change:defunct notification if necessary */
194 app = _atspi_application_new (bus_name);
195 if (!app) return NULL;
196 app->bus_name = bus_name_dup;
197 app->hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
198 app->bus = dbus_connection_ref (_atspi_bus ());
199 g_hash_table_insert (app_hash, bus_name_dup, app);
200 dbus_error_init (&error);
201 message = dbus_message_new_method_call (bus_name, atspi_path_root,
202 atspi_interface_application, "GetApplicationBusAddress");
204 dbus_connection_send_with_reply (app->bus, message, &pending, 2000);
205 dbus_pending_call_set_notify (pending, handle_get_bus_address, app, NULL);
206 dbus_message_unref (message);
210 static AtspiAccessible *
211 ref_accessible (const char *app_name, const char *path)
213 AtspiApplication *app;
216 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
219 app = get_application (app_name);
221 if (!strcmp (path, "/org/a11y/atspi/accessible/root"))
225 app->root = atspi_accessible_new (app, atspi_path_root);
226 app->root->accessible_parent = atspi_get_desktop (0);
228 return g_object_ref (app->root);
231 a = g_hash_table_lookup (app->hash, path);
234 return g_object_ref (a);
236 a = atspi_accessible_new (app, path);
239 g_hash_table_insert (app->hash, g_strdup (a->parent.path), a);
240 g_object_ref (a); /* for the hash */
244 static AtspiHyperlink *
245 ref_hyperlink (const char *app_name, const char *path)
247 AtspiApplication *app = get_application (app_name);
248 AtspiHyperlink *hyperlink;
250 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
253 hyperlink = g_hash_table_lookup (app->hash, path);
256 return g_object_ref (hyperlink);
258 hyperlink = atspi_hyperlink_new (app, path);
261 g_hash_table_insert (app->hash, g_strdup (hyperlink->parent.path), hyperlink);
262 /* TODO: This should be a weak ref */
263 g_object_ref (hyperlink); /* for the hash */
276 GArray *state_bitflags;
279 static DBusHandlerResult
280 handle_remove_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
282 const char *sender = dbus_message_get_sender (message);
283 AtspiApplication *app;
285 DBusMessageIter iter, iter_struct;
286 const char *signature = dbus_message_get_signature (message);
290 if (strcmp (signature, "(so)") != 0)
292 g_warning (_("AT-SPI: Unknown signature %s for RemoveAccessible"), signature);
293 return DBUS_HANDLER_RESULT_HANDLED;
296 dbus_message_iter_init (message, &iter);
297 dbus_message_iter_recurse (&iter, &iter_struct);
298 dbus_message_iter_get_basic (&iter_struct, &sender);
299 dbus_message_iter_next (&iter_struct);
300 dbus_message_iter_get_basic (&iter_struct, &path);
301 app = get_application (sender);
302 a = ref_accessible (sender, path);
304 return DBUS_HANDLER_RESULT_HANDLED;
305 g_object_run_dispose (G_OBJECT (a));
306 g_hash_table_remove (app->hash, a->parent.path);
307 g_object_unref (a); /* unref our own ref */
308 return DBUS_HANDLER_RESULT_HANDLED;
312 add_app_to_desktop (AtspiAccessible *a, const char *bus_name)
317 dbus_error_init (&error);
318 AtspiAccessible *obj = ref_accessible (bus_name, atspi_path_root);
321 GList *new_list = g_list_append (a->children, obj);
324 a->children = new_list;
330 g_warning (_("AT-SPI: Error calling getRoot for %s: %s"), bus_name, error.message);
336 send_children_changed (AtspiAccessible *parent, AtspiAccessible *child, gboolean add)
340 memset (&e, 0, sizeof (e));
341 e.type = (add? "object:children-changed:add": "object:children-changed:remove");
343 e.detail1 = g_list_index (parent->children, child);
345 _atspi_send_event (&e);
349 unref_object_and_descendants (AtspiAccessible *obj)
353 for (l = obj->children; l; l = l->next)
355 unref_object_and_descendants (l->data);
357 g_object_unref (obj);
361 remove_app_from_desktop (AtspiAccessible *a, const char *bus_name)
364 AtspiAccessible *child;
366 for (l = a->children; l; l = l->next)
369 if (!strcmp (bus_name, child->parent.app->bus_name)) break;
375 send_children_changed (a, child, FALSE);
376 a->children = g_list_remove (a->children, child);
377 unref_object_and_descendants (child);
381 static AtspiAccessible *desktop;
384 get_reference_from_iter (DBusMessageIter *iter, const char **app_name, const char **path)
386 DBusMessageIter iter_struct;
388 dbus_message_iter_recurse (iter, &iter_struct);
389 dbus_message_iter_get_basic (&iter_struct, app_name);
390 dbus_message_iter_next (&iter_struct);
391 dbus_message_iter_get_basic (&iter_struct, path);
392 dbus_message_iter_next (iter);
396 add_accessible_from_iter (DBusMessageIter *iter)
400 DBusMessageIter iter_struct, iter_array;
401 const char *app_name, *path;
402 AtspiApplication *app;
403 AtspiAccessible *accessible;
404 const char *name, *description;
407 dbus_message_iter_recurse (iter, &iter_struct);
410 get_reference_from_iter (&iter_struct, &app_name, &path);
411 accessible = ref_accessible (app_name, path);
415 /* Get application: TODO */
416 dbus_message_iter_next (&iter_struct);
419 get_reference_from_iter (&iter_struct, &app_name, &path);
420 if (accessible->accessible_parent)
421 g_object_unref (accessible->accessible_parent);
422 accessible->accessible_parent = ref_accessible (app_name, path);
425 while (accessible->children)
427 g_object_unref (accessible->children->data);
428 accessible->children = g_list_remove (accessible->children, accessible->children->data);
430 dbus_message_iter_recurse (&iter_struct, &iter_array);
431 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
433 AtspiAccessible *child;
434 get_reference_from_iter (&iter_array, &app_name, &path);
435 child = ref_accessible (app_name, path);
436 new_list = g_list_append (accessible->children, child);
437 if (new_list) accessible->children = new_list;
441 dbus_message_iter_next (&iter_struct);
442 _atspi_dbus_set_interfaces (accessible, &iter_struct);
443 dbus_message_iter_next (&iter_struct);
446 if (accessible->name)
447 g_free (accessible->name);
448 dbus_message_iter_get_basic (&iter_struct, &name);
449 accessible->name = g_strdup (name);
450 dbus_message_iter_next (&iter_struct);
453 dbus_message_iter_get_basic (&iter_struct, &role);
454 accessible->role = role;
455 dbus_message_iter_next (&iter_struct);
458 if (accessible->description)
459 g_free (accessible->description);
460 dbus_message_iter_get_basic (&iter_struct, &description);
461 accessible->description = g_strdup (description);
462 dbus_message_iter_next (&iter_struct);
464 _atspi_dbus_set_state (accessible, &iter_struct);
465 dbus_message_iter_next (&iter_struct);
467 accessible->cached_properties |= ATSPI_CACHE_NAME | ATSPI_CACHE_ROLE | ATSPI_CACHE_PARENT;
468 if (!atspi_state_set_contains (accessible->states,
469 ATSPI_STATE_MANAGES_DESCENDANTS))
470 accessible->cached_properties |= ATSPI_CACHE_CHILDREN;
472 /* This is a bit of a hack since the cache holds a ref, so we don't need
473 * the one provided for us anymore */
474 g_object_unref (accessible);
478 handle_get_items (DBusPendingCall *pending, void *user_data)
480 AtspiApplication *app = user_data;
481 DBusMessage *reply = dbus_pending_call_steal_reply (pending);
482 DBusMessageIter iter, iter_array;
484 if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
486 const char *sender = dbus_message_get_sender (reply);
487 const char *error = NULL;
488 dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &error,
490 g_warning (_("AT-SPI: Error in GetItems, sender=%s, error=%s"), sender, error);
491 dbus_message_unref (reply);
492 dbus_pending_call_unref (pending);
496 dbus_message_iter_init (reply, &iter);
497 dbus_message_iter_recurse (&iter, &iter_array);
498 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
500 add_accessible_from_iter (&iter_array);
501 dbus_message_iter_next (&iter_array);
503 dbus_message_unref (reply);
504 dbus_pending_call_unref (pending);
507 /* TODO: Do we stil need this function? */
508 static AtspiAccessible *
509 ref_accessible_desktop (AtspiApplication *app)
515 DBusMessage *message, *reply;
516 DBusMessageIter iter, iter_array;
521 g_object_ref (desktop);
524 desktop = atspi_accessible_new (app, atspi_path_root);
529 g_hash_table_insert (app->hash, desktop->parent.path, desktop);
530 g_object_ref (desktop); /* for the hash */
531 desktop->name = g_strdup ("main");
532 dbus_error_init (&error);
533 message = dbus_message_new_method_call (atspi_bus_registry,
535 atspi_interface_accessible,
539 reply = _atspi_dbus_send_with_reply_and_block (message);
540 if (!reply || strcmp (dbus_message_get_signature (reply), "a(so)") != 0)
542 g_error ("Couldn't get application list: %s", error.message);
544 dbus_message_unref (reply);
547 dbus_message_iter_init (reply, &iter);
548 dbus_message_iter_recurse (&iter, &iter_array);
549 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
551 const char *app_name, *path;
552 get_reference_from_iter (&iter_array, &app_name, &path);
553 add_app_to_desktop (desktop, app_name);
555 dbus_message_unref (reply);
557 /* Record the alternate name as an alias for org.a11y.atspi.Registry */
558 bus_name_dup = g_strdup (dbus_message_get_sender (reply));
560 g_hash_table_insert (app_hash, bus_name_dup, app);
566 _atspi_ref_accessible (const char *app, const char *path)
568 AtspiApplication *a = get_application (app);
570 if ( APP_IS_REGISTRY(a))
572 return ref_accessible_desktop (a);
574 return ref_accessible (app, path);
578 _atspi_dbus_return_accessible_from_message (DBusMessage *message)
580 DBusMessageIter iter;
581 AtspiAccessible *retval = NULL;
582 const char *signature;
587 signature = dbus_message_get_signature (message);
588 if (!strcmp (signature, "(so)"))
590 dbus_message_iter_init (message, &iter);
591 retval = _atspi_dbus_return_accessible_from_iter (&iter);
595 g_warning (_("AT-SPI: Called _atspi_dbus_return_accessible_from_message with strange signature %s"), signature);
597 dbus_message_unref (message);
602 _atspi_dbus_return_accessible_from_iter (DBusMessageIter *iter)
604 const char *app_name, *path;
606 get_reference_from_iter (iter, &app_name, &path);
607 return ref_accessible (app_name, path);
611 _atspi_dbus_return_hyperlink_from_message (DBusMessage *message)
613 DBusMessageIter iter;
614 AtspiHyperlink *retval = NULL;
615 const char *signature = dbus_message_get_signature (message);
617 if (!strcmp (signature, "(so)"))
619 dbus_message_iter_init (message, &iter);
620 retval = _atspi_dbus_return_hyperlink_from_iter (&iter);
624 g_warning (_("AT-SPI: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s"), signature);
626 dbus_message_unref (message);
631 _atspi_dbus_return_hyperlink_from_iter (DBusMessageIter *iter)
633 const char *app_name, *path;
635 get_reference_from_iter (iter, &app_name, &path);
636 return ref_hyperlink (app_name, path);
639 const char *cache_signal_type = "((so)(so)(so)a(so)assusau)";
641 static DBusHandlerResult
642 handle_add_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
644 DBusMessageIter iter;
645 const char *sender = dbus_message_get_sender (message);
646 AtspiApplication *app = get_application (sender);
647 const char *type = cache_signal_type;
649 if (strcmp (dbus_message_get_signature (message), cache_signal_type) != 0)
651 g_warning (_("AT-SPI: AddAccessible with unknown signature %s\n"),
652 dbus_message_get_signature (message));
656 dbus_message_iter_init (message, &iter);
657 add_accessible_from_iter (&iter);
663 DBusMessage *message;
667 static guint process_deferred_messages_id = -1;
670 process_deferred_message (BusDataClosure *closure)
672 int type = dbus_message_get_type (closure->message);
673 const char *interface = dbus_message_get_interface (closure->message);
674 const char *member = dbus_message_get_member (closure->message);
678 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
679 !strncmp (interface, "org.a11y.atspi.Event.", 21))
681 atspi_dbus_handle_event (closure->bus, closure->message, closure->data);
683 if (dbus_message_is_method_call (closure->message, atspi_interface_device_event_listener, "NotifyEvent"))
685 atspi_dbus_handle_DeviceEvent (closure->bus,
686 closure->message, closure->data);
688 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "AddAccessible"))
690 handle_add_accessible (closure->bus, closure->message, closure->data);
692 if (dbus_message_is_signal (closure->message, atspi_interface_cache, "RemoveAccessible"))
694 handle_remove_accessible (closure->bus, closure->message, closure->data);
698 static GList *deferred_messages = NULL;
701 _atspi_process_deferred_messages (gpointer data)
703 static int in_process_deferred_messages = 0;
705 if (in_process_deferred_messages)
707 in_process_deferred_messages = 1;
708 while (deferred_messages != NULL)
710 BusDataClosure *closure = deferred_messages->data;
711 process_deferred_message (closure);
712 deferred_messages = g_list_remove (deferred_messages, closure);
713 dbus_message_unref (closure->message);
714 dbus_connection_unref (closure->bus);
717 /* If data is NULL, assume that we were called from GLib */
719 process_deferred_messages_id = -1;
720 in_process_deferred_messages = 0;
724 static DBusHandlerResult
725 defer_message (DBusConnection *connection, DBusMessage *message, void *user_data)
727 BusDataClosure *closure = g_new (BusDataClosure, 1);
731 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
732 closure->bus = dbus_connection_ref (bus);
733 closure->message = dbus_message_ref (message);
734 closure->data = user_data;
736 new_list = g_list_append (deferred_messages, closure);
738 deferred_messages = new_list;
740 if (process_deferred_messages_id == -1)
741 process_deferred_messages_id = g_idle_add (_atspi_process_deferred_messages, NULL);
742 return DBUS_HANDLER_RESULT_HANDLED;
745 static DBusHandlerResult
746 atspi_dbus_filter (DBusConnection *bus, DBusMessage *message, void *data)
748 int type = dbus_message_get_type (message);
749 const char *interface = dbus_message_get_interface (message);
750 const char *member = dbus_message_get_member (message);
754 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
755 !strncmp (interface, "org.a11y.atspi.Event.", 21))
757 return defer_message (bus, message, data);
759 if (dbus_message_is_method_call (message, atspi_interface_device_event_listener, "NotifyEvent"))
761 return defer_message (bus, message, data);
763 if (dbus_message_is_signal (message, atspi_interface_cache, "AddAccessible"))
765 return defer_message (bus, message, data);
767 if (dbus_message_is_signal (message, atspi_interface_cache, "RemoveAccessible"))
769 return defer_message (bus, message, data);
771 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
774 static const char *signal_interfaces[] =
776 "org.a11y.atspi.Event.Object",
777 "org.a11y.atspi.Event.Window",
778 "org.a11y.atspi.Event.Mouse",
779 "org.a11y.atspi.Event.Terminal",
780 "org.a11y.atspi.Event.Document",
781 "org.a11y.atspi.Event.Focus",
786 * Returns a 'canonicalized' value for DISPLAY,
787 * with the screen number stripped off if present.
789 * TODO: Avoid having duplicate functions for this here and in at-spi2-atk
792 spi_display_name (void)
794 static const char *canonical_display_name = NULL;
795 if (!canonical_display_name)
797 const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
800 display_env = g_getenv ("DISPLAY");
801 if (!display_env || !display_env[0])
802 canonical_display_name = ":0";
805 gchar *display_p, *screen_p;
806 canonical_display_name = g_strdup (display_env);
807 display_p = g_utf8_strrchr (canonical_display_name, -1, ':');
808 screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
809 if (screen_p && display_p && (screen_p > display_p))
817 canonical_display_name = display_env;
820 return canonical_display_name;
823 /* TODO: Avoid having duplicate functions for this here and in at-spi2-atk */
824 static DBusConnection *
825 get_accessibility_bus ()
829 Display *bridge_display;
831 unsigned char *data = NULL;
832 unsigned long nitems;
833 unsigned long leftover;
835 DBusConnection *bus = NULL;
838 bridge_display = XOpenDisplay (spi_display_name ());
841 g_warning (_("AT-SPI: Could not get the display\n"));
845 AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
846 XGetWindowProperty (bridge_display,
847 XDefaultRootWindow (bridge_display),
849 (long) BUFSIZ, False,
850 (Atom) 31, &actual_type, &actual_format,
851 &nitems, &leftover, &data);
852 XCloseDisplay (bridge_display);
854 dbus_error_init (&error);
859 (_("AT-SPI: Accessibility bus not found - Using session bus.\n"));
860 bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
863 g_warning (_("AT-SPI: Couldn't connect to bus: %s\n"), error.message);
869 bus = dbus_connection_open (data, &error);
872 g_warning (_("AT-SPI: Couldn't connect to bus: %s\n"), error.message);
877 if (!dbus_bus_register (bus, &error))
879 g_warning (_("AT-SPI: Couldn't register with bus: %s\n"), error.message);
891 * Connects to the accessibility registry and initializes the SPI.
893 * Returns: 0 on success, otherwise an integer error code.
913 dbus_error_init (&error);
914 bus = get_accessibility_bus ();
917 g_error ("Couldn't get session bus");
920 dbus_bus_register (bus, &error);
921 dbus_connection_setup_with_g_main(bus, g_main_context_default());
922 dbus_connection_add_filter (bus, atspi_dbus_filter, NULL, NULL);
923 dbind_set_timeout (1000);
924 match = g_strdup_printf ("type='signal',interface='%s',member='AddAccessible'", atspi_interface_cache);
925 dbus_error_init (&error);
926 dbus_bus_add_match (bus, match, &error);
928 match = g_strdup_printf ("type='signal',interface='%s',member='RemoveAccessible'", atspi_interface_cache);
929 dbus_bus_add_match (bus, match, &error);
931 match = g_strdup_printf ("type='signal',interface='%s',member='ChildrenChanged'", atspi_interface_event_object);
932 dbus_bus_add_match (bus, match, &error);
934 match = g_strdup_printf ("type='signal',interface='%s',member='PropertyChange'", atspi_interface_event_object);
935 dbus_bus_add_match (bus, match, &error);
937 match = g_strdup_printf ("type='signal',interface='%s',member='StateChanged'", atspi_interface_event_object);
938 dbus_bus_add_match (bus, match, &error);
943 static GMainLoop *mainloop;
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 mainloop = g_main_loop_new (NULL, FALSE);
958 g_main_loop_run (mainloop);
964 * Quits the last main event loop for the SPI services,
965 * see atspi_event_main
968 atspi_event_quit (void)
970 g_main_loop_quit (mainloop);
976 * Disconnects from the Accessibility Registry and releases
977 * any floating resources. Call only once at exit.
979 * Returns: 0 if there were no leaks, otherwise non zero.
991 atspi_inited = FALSE;
995 leaked = g_hash_table_size (live_refs);
1008 _atspi_dbus_call (gpointer obj, const char *interface, const char *method, GError **error, const char *type, ...)
1013 AtspiObject *aobj = ATSPI_OBJECT (obj);
1015 if (!aobj->app || !aobj->app->bus)
1017 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
1018 _("The application no longer exists"));
1022 va_start (args, type);
1023 dbus_error_init (&err);
1024 retval = dbind_method_call_reentrant_va (aobj->app->bus, aobj->app->bus_name,
1025 aobj->path, interface, method, &err,
1028 _atspi_process_deferred_messages ((gpointer)TRUE);
1029 if (dbus_error_is_set (&err))
1031 /* TODO: Set gerror */
1032 dbus_error_free (&err);
1038 _atspi_dbus_call_partial (gpointer obj,
1039 const char *interface,
1042 const char *type, ...)
1046 va_start (args, type);
1047 return _atspi_dbus_call_partial_va (obj, interface, method, error, type, args);
1051 _atspi_dbus_call_partial_va (gpointer obj,
1052 const char *interface,
1058 AtspiObject *aobj = ATSPI_OBJECT (obj);
1061 DBusMessage *msg = NULL, *reply = NULL;
1062 DBusMessageIter iter;
1065 dbus_error_init (&err);
1067 if (!aobj->app || !aobj->app->bus)
1069 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
1070 _("The application no longer exists"));
1074 msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
1079 dbus_message_iter_init_append (msg, &iter);
1080 dbind_any_marshal_va (&iter, &p, args);
1082 reply = dbind_send_and_allow_reentry (aobj->app->bus, msg, &err);
1086 dbus_message_unref (msg);
1087 _atspi_process_deferred_messages ((gpointer)TRUE);
1088 if (dbus_error_is_set (&err))
1090 /* TODO: Set gerror */
1091 dbus_error_free (&err);
1097 _atspi_dbus_get_property (gpointer obj, const char *interface, const char *name, GError **error, const char *type, void *data)
1099 DBusMessage *message, *reply;
1100 DBusMessageIter iter, iter_variant;
1102 dbus_bool_t retval = FALSE;
1103 AtspiObject *aobj = ATSPI_OBJECT (obj);
1108 if (!aobj->app || !aobj->app->bus)
1110 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
1111 _("The application no longer exists"));
1115 message = dbus_message_new_method_call (aobj->app->bus_name,
1117 "org.freedesktop.DBus.Properties",
1121 // TODO: throw exception
1124 dbus_message_append_args (message, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID);
1125 dbus_error_init (&err);
1126 reply = dbind_send_and_allow_reentry (aobj->app->bus, message, &err);
1127 dbus_message_unref (message);
1128 _atspi_process_deferred_messages ((gpointer)TRUE);
1131 // TODO: throw exception
1134 dbus_message_iter_init (reply, &iter);
1135 if (dbus_message_iter_get_arg_type (&iter) != 'v')
1137 g_warning (_("AT-SPI: expected a variant when fetching %s from interface %s; got %s\n"), name, interface, dbus_message_get_signature (reply));
1140 dbus_message_iter_recurse (&iter, &iter_variant);
1141 if (dbus_message_iter_get_arg_type (&iter_variant) != type[0])
1143 g_warning (_("atspi_dbus_get_property: Wrong type: expected %s, got %c\n"), type, dbus_message_iter_get_arg_type (&iter_variant));
1146 if (!strcmp (type, "(so)"))
1148 *((AtspiAccessible **)data) = _atspi_dbus_return_accessible_from_iter (&iter_variant);
1152 dbus_message_iter_get_basic (&iter_variant, data);
1153 dbus_message_unref (reply);
1154 if (type [0] == 's')
1155 *(char **)data = g_strdup (*(char **)data);
1163 _atspi_dbus_send_with_reply_and_block (DBusMessage *message)
1167 AtspiApplication *app;
1168 DBusConnection *bus;
1170 app = get_application (dbus_message_get_destination (message));
1172 if (app && !app->bus)
1173 return NULL; /* will fail anyway; app has been disposed */
1175 bus = (app ? app->bus : _atspi_bus());
1176 dbus_error_init (&err);
1177 reply = dbind_send_and_allow_reentry (bus, message, &err);
1178 _atspi_process_deferred_messages ((gpointer)TRUE);
1179 dbus_message_unref (message);
1182 g_warning (_("AT-SPI: Got error: %s\n"), err.message);
1183 dbus_error_free (&err);
1189 _atspi_dbus_return_hash_from_message (DBusMessage *message)
1191 DBusMessageIter iter;
1197 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1199 dbus_message_iter_init (message, &iter);
1200 ret = _atspi_dbus_hash_from_iter (&iter);
1201 dbus_message_unref (message);
1206 _atspi_dbus_hash_from_iter (DBusMessageIter *iter)
1208 GHashTable *hash = g_hash_table_new (g_str_hash, g_str_equal);
1209 DBusMessageIter iter_array, iter_dict;
1211 dbus_message_iter_recurse (iter, &iter_array);
1212 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1214 const char *name, *value;
1215 dbus_message_iter_recurse (&iter_array, &iter_dict);
1216 dbus_message_iter_get_basic (&iter_dict, &name);
1217 dbus_message_iter_next (&iter_dict);
1218 dbus_message_iter_get_basic (&iter_dict, &value);
1219 g_hash_table_insert (hash, g_strdup (name), g_strdup (value));
1220 dbus_message_iter_next (&iter_array);
1226 _atspi_dbus_return_attribute_array_from_message (DBusMessage *message)
1228 DBusMessageIter iter;
1234 _ATSPI_DBUS_CHECK_SIG (message, "a{ss}", NULL, NULL);
1236 dbus_message_iter_init (message, &iter);
1238 ret = _atspi_dbus_attribute_array_from_iter (&iter);
1239 dbus_message_unref (message);
1244 _atspi_dbus_attribute_array_from_iter (DBusMessageIter *iter)
1246 DBusMessageIter iter_array, iter_dict;
1247 GArray *array = g_array_new (TRUE, TRUE, sizeof (gchar *));
1250 dbus_message_iter_recurse (iter, &iter_array);
1251 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1253 const char *name, *value;
1256 dbus_message_iter_recurse (&iter_array, &iter_dict);
1257 dbus_message_iter_get_basic (&iter_dict, &name);
1258 dbus_message_iter_next (&iter_dict);
1259 dbus_message_iter_get_basic (&iter_dict, &value);
1260 str = g_strdup_printf ("%s:%s", name, value);
1261 new_array = g_array_append_val (array, str);
1264 dbus_message_iter_next (&iter_array);;
1270 _atspi_dbus_set_interfaces (AtspiAccessible *accessible, DBusMessageIter *iter)
1272 DBusMessageIter iter_array;
1274 accessible->interfaces = 0;
1275 dbus_message_iter_recurse (iter, &iter_array);
1276 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1280 dbus_message_iter_get_basic (&iter_array, &iface);
1281 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable")) continue;
1282 n = _atspi_get_iface_num (iface);
1285 g_warning (_("AT-SPI: Unknown interface %s"), iface);
1288 accessible->interfaces |= (1 << n);
1289 dbus_message_iter_next (&iter_array);
1291 accessible->cached_properties |= ATSPI_CACHE_INTERFACES;
1295 _atspi_dbus_set_state (AtspiAccessible *accessible, DBusMessageIter *iter)
1297 DBusMessageIter iter_array;
1299 dbus_uint32_t *states;
1301 dbus_message_iter_recurse (iter, &iter_array);
1302 dbus_message_iter_get_fixed_array (&iter_array, &states, &count);
1305 g_warning (_("AT-SPI: expected 2 values in states array; got %d\n"), count);
1306 if (!accessible->states)
1307 accessible->states = _atspi_state_set_new_internal (accessible, 0);
1311 guint64 val = ((guint64)states [1]) << 32;
1313 if (!accessible->states)
1314 accessible->states = _atspi_state_set_new_internal (accessible, val);
1316 accessible->states->states = val;
1318 accessible->cached_properties |= ATSPI_CACHE_STATES;
1322 atspi_error_quark (void)
1324 return g_quark_from_static_string ("atspi_error");