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 DBusConnection *bus = NULL;
36 static GHashTable *apps = NULL;
37 static GHashTable *live_refs = NULL;
38 static GQueue *exception_handlers = NULL;
39 static DBusError exception;
41 const char *atspi_path_dec = ATSPI_DBUS_PATH_DEC;
42 const char *atspi_path_registry = ATSPI_DBUS_PATH_REGISTRY;
43 const char *atspi_path_root = ATSPI_DBUS_PATH_ROOT;
44 const char *atspi_bus_registry = ATSPI_DBUS_NAME_REGISTRY;
45 const char *atspi_interface_accessible = ATSPI_DBUS_INTERFACE_ACCESSIBLE;
46 const char *atspi_interface_action = ATSPI_DBUS_INTERFACE_ACTION;
47 const char *atspi_interface_application = ATSPI_DBUS_INTERFACE_APPLICATION;
48 const char *atspi_interface_component = ATSPI_DBUS_INTERFACE_COMPONENT;
49 const char *atspi_interface_dec = ATSPI_DBUS_INTERFACE_DEC;
50 const char *atspi_interface_device_event_listener = ATSPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
51 const char *atspi_interface_document = ATSPI_DBUS_INTERFACE_DOCUMENT;
52 const char *atspi_interface_editable_text = ATSPI_DBUS_INTERFACE_EDITABLE_TEXT;
53 const char *atspi_interface_event_object = ATSPI_DBUS_INTERFACE_EVENT_OBJECT;
54 const char *atspi_interface_hyperlink = ATSPI_DBUS_INTERFACE_HYPERLINK;
55 const char *atspi_interface_hypertext = ATSPI_DBUS_INTERFACE_HYPERTEXT;
56 const char *atspi_interface_image = ATSPI_DBUS_INTERFACE_IMAGE;
57 const char *atspi_interface_registry = ATSPI_DBUS_INTERFACE_REGISTRY;
58 const char *atspi_interface_selection = ATSPI_DBUS_INTERFACE_SELECTION;
59 const char *atspi_interface_table = ATSPI_DBUS_INTERFACE_TABLE;
60 const char *atspi_interface_text = ATSPI_DBUS_INTERFACE_TEXT;
61 const char *atspi_interface_cache = ATSPI_DBUS_INTERFACE_CACHE;
62 const char *atspi_interface_value = ATSPI_DBUS_INTERFACE_VALUE;
64 static const char *interfaces[] =
66 ATSPI_DBUS_INTERFACE_ACCESSIBLE,
67 ATSPI_DBUS_INTERFACE_ACTION,
68 ATSPI_DBUS_INTERFACE_APPLICATION,
69 ATSPI_DBUS_INTERFACE_COLLECTION,
70 ATSPI_DBUS_INTERFACE_COMPONENT,
71 ATSPI_DBUS_INTERFACE_DOCUMENT,
72 ATSPI_DBUS_INTERFACE_EDITABLE_TEXT,
73 ATSPI_DBUS_INTERFACE_HYPERLINK,
74 ATSPI_DBUS_INTERFACE_HYPERTEXT,
75 ATSPI_DBUS_INTERFACE_IMAGE,
76 "org.a11y.atspi.LoginHelper",
77 ATSPI_DBUS_INTERFACE_SELECTION,
78 ATSPI_DBUS_INTERFACE_TABLE,
79 ATSPI_DBUS_INTERFACE_TEXT,
80 ATSPI_DBUS_INTERFACE_VALUE,
85 _atspi_get_iface_num (const char *iface)
87 /* TODO: Use a binary search or hash to improve performance */
90 for (i = 0; interfaces[i]; i++)
92 if (!strcmp(iface, interfaces[i])) return i;
102 live_refs = g_hash_table_new (g_direct_hash, g_direct_equal);
107 /* TODO: Add an application parameter */
116 #define APP_IS_REGISTRY(app) (!strcmp (app->bus_name, atspi_bus_registry))
127 g_hash_table_destroy (refs);
131 static gboolean atspi_inited = FALSE;
133 static GHashTable *app_hash = NULL;
135 static AtspiApplication *
136 get_application (const char *bus_name)
138 AtspiApplication *app = NULL;
143 app_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_hash_table_unref);
144 if (!app_hash) return NULL;
146 app = g_hash_table_lookup (app_hash, bus_name);
148 bus_name_dup = g_strdup (bus_name);
149 if (!bus_name_dup) return NULL;
150 // TODO: change below to something that will send state-change:defunct notification if necessary */
151 app = _atspi_application_new (bus_name);
152 if (!app) return NULL;
153 app->bus_name = bus_name_dup;
154 app->hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
155 g_hash_table_insert (app_hash, bus_name_dup, app);
159 static AtspiAccessible *
160 ref_accessible (const char *app_name, const char *path)
162 AtspiApplication *app = get_application (app_name);
165 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
168 if (!strcmp (path, "/org/a11y/atspi/accessible/root"))
172 app->root = atspi_accessible_new (app, atspi_path_root);
173 app->root->accessible_parent = atspi_get_desktop (0);
175 return g_object_ref (app->root);
178 a = g_hash_table_lookup (app->hash, path);
181 return g_object_ref (a);
183 a = atspi_accessible_new (app, path);
186 g_hash_table_insert (app->hash, a->parent.path, a);
187 g_object_ref (a); /* for the hash */
191 static AtspiHyperlink *
192 ref_hyperlink (const char *app_name, const char *path)
194 AtspiApplication *app = get_application (app_name);
195 AtspiHyperlink *hyperlink;
197 if (!strcmp (path, ATSPI_DBUS_PATH_NULL))
200 hyperlink = g_hash_table_lookup (app->hash, path);
203 return g_object_ref (hyperlink);
205 hyperlink = atspi_hyperlink_new (app, path);
208 g_hash_table_insert (app->hash, hyperlink->parent.path, hyperlink);
209 /* TODO: This should be a weak ref */
210 g_object_ref (hyperlink); /* for the hash */
223 GArray *state_bitflags;
226 static DBusHandlerResult
227 handle_remove_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
229 const char *sender = dbus_message_get_sender (message);
230 AtspiApplication *app;
232 DBusMessageIter iter, iter_struct;
233 const char *signature = dbus_message_get_signature (message);
237 if (strcmp (signature, "(so)") != 0)
239 g_warning ("at-spi: Unknown signature %s for RemoveAccessible", signature);
240 return DBUS_HANDLER_RESULT_HANDLED;
243 dbus_message_iter_init (message, &iter);
244 dbus_message_iter_recurse (&iter, &iter_struct);
245 dbus_message_iter_get_basic (&iter_struct, &sender);
246 dbus_message_iter_get_basic (&iter_struct, &path);
247 app = get_application (sender);
248 a = ref_accessible (sender, path);
250 return DBUS_HANDLER_RESULT_HANDLED;
251 if (a->accessible_parent && g_list_find (a->accessible_parent->children, a))
253 a->accessible_parent->children = g_list_remove (a->accessible_parent->children, a);
256 g_hash_table_remove (app->hash, app->bus_name);
257 g_object_unref (a); /* unref our own ref */
258 return DBUS_HANDLER_RESULT_HANDLED;
262 add_app_to_desktop (AtspiAccessible *a, const char *bus_name)
267 dbus_error_init (&error);
268 AtspiAccessible *obj = ref_accessible (bus_name, atspi_path_root);
271 GList *new_list = g_list_append (a->children, obj);
274 a->children = new_list;
280 g_warning ("Error calling getRoot for %s: %s", bus_name, error.message);
286 send_children_changed (AtspiAccessible *parent, AtspiAccessible *child, gboolean add)
290 memset (&e, 0, sizeof (e));
291 e.type = (add? "object:children-changed:add": "object:children-changed:remove");
293 e.detail1 = g_list_index (parent->children, child);
295 _atspi_send_event (&e);
299 unref_object_and_descendants (AtspiAccessible *obj)
303 for (l = obj->children; l; l = l->next)
305 unref_object_and_descendants (l->data);
307 g_object_unref (obj);
311 remove_app_from_desktop (AtspiAccessible *a, const char *bus_name)
314 AtspiAccessible *child;
316 for (l = a->children; l; l = l->next)
319 if (!strcmp (bus_name, child->parent.app->bus_name)) break;
323 g_warning ("Removing unregistered app %s; doing nothing\n", bus_name);
326 send_children_changed (a, child, FALSE);
327 a->children = g_list_remove (a->children, child);
328 unref_object_and_descendants (child);
332 static AtspiAccessible *desktop;
335 get_reference_from_iter (DBusMessageIter *iter, const char **app_name, const char **path)
337 DBusMessageIter iter_struct;
339 dbus_message_iter_recurse (iter, &iter_struct);
340 dbus_message_iter_get_basic (&iter_struct, app_name);
341 dbus_message_iter_next (&iter_struct);
342 dbus_message_iter_get_basic (&iter_struct, path);
343 dbus_message_iter_next (iter);
347 add_accessible_from_iter (DBusMessageIter *iter)
351 DBusMessageIter iter_struct, iter_array;
352 const char *app_name, *path;
353 AtspiApplication *app;
354 AtspiAccessible *accessible;
355 const char *name, *description;
357 dbus_uint32_t *states;
360 dbus_message_iter_recurse (iter, &iter_struct);
363 get_reference_from_iter (&iter_struct, &app_name, &path);
364 accessible = ref_accessible (app_name, path);
368 /* Get application: TODO */
369 dbus_message_iter_next (&iter_struct);
372 get_reference_from_iter (&iter_struct, &app_name, &path);
373 accessible->accessible_parent = ref_accessible (app_name, path);
376 dbus_message_iter_recurse (&iter_struct, &iter_array);
377 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
379 AtspiAccessible *child;
380 get_reference_from_iter (&iter_array, &app_name, &path);
381 child = ref_accessible (app_name, path);
382 new_list = g_list_append (accessible->children, child);
383 if (new_list) accessible->children = new_list;
387 accessible->interfaces = 0;
388 dbus_message_iter_next (&iter_struct);
389 dbus_message_iter_recurse (&iter_struct, &iter_array);
390 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
394 dbus_message_iter_get_basic (&iter_array, &iface);
395 if (!strcmp (iface, "org.freedesktop.DBus.Introspectable")) continue;
396 n = _atspi_get_iface_num (iface);
399 g_warning ("Unknown interface %s", iface);
401 else accessible->interfaces |= (1 << n);
402 dbus_message_iter_next (&iter_array);
404 dbus_message_iter_next (&iter_struct);
407 dbus_message_iter_get_basic (&iter_struct, &name);
408 accessible->name = g_strdup (name);
409 dbus_message_iter_next (&iter_struct);
412 dbus_message_iter_get_basic (&iter_struct, &role);
413 accessible->role = role;
414 dbus_message_iter_next (&iter_struct);
417 dbus_message_iter_get_basic (&iter_struct, &description);
418 accessible->description = g_strdup (description);
419 dbus_message_iter_next (&iter_struct);
421 dbus_message_iter_recurse (&iter_struct, &iter_array);
422 dbus_message_iter_get_fixed_array (&iter_array, &states, &count);
425 g_warning ("at-spi: expected 2 values in states array; got %d\n", count);
426 accessible->states = atspi_state_set_new (accessible, 0);
430 guint64 val = ((guint64)states [1]) << 32;
432 accessible->states = atspi_state_set_new (accessible, val);
434 dbus_message_iter_next (&iter_struct);
436 /* This is a bit of a hack since the cache holds a ref, so we don't need
437 * the one provided for us anymore */
438 g_object_unref (accessible);
442 add_accessibles (const char *app_name)
445 DBusMessage *message, *reply;
446 DBusMessageIter iter, iter_array;
448 AtspiApplication *app = get_application (app_name);
449 /* TODO: Move this functionality into app initializer? */
450 dbus_error_init (&error);
451 message = dbus_message_new_method_call (app_name, "/org/a11y/atspi/cache", atspi_interface_cache, "GetItems");
452 reply = _atspi_dbus_send_with_reply_and_block (message);
453 if (!reply || strcmp (dbus_message_get_signature (reply), "a((so)(so)(so)a(so)assusau)") != 0)
455 g_warning ("at-spi: Error in GetItems");
458 dbus_message_unref (reply);
460 dbus_message_iter_init (reply, &iter);
461 dbus_message_iter_recurse (&iter, &iter_array);
462 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
464 add_accessible_from_iter (&iter_array);
465 dbus_message_iter_next (&iter_array);
467 dbus_message_unref (reply);
470 /* TODO: Do we stil need this function? */
471 static AtspiAccessible *
472 ref_accessible_desktop (AtspiApplication *app)
478 DBusMessage *message, *reply;
479 DBusMessageIter iter, iter_array;
483 g_object_ref (desktop);
486 desktop = atspi_accessible_new (app, atspi_path_root);
491 g_hash_table_insert (app->hash, desktop->parent.path, desktop);
492 g_object_ref (desktop); /* for the hash */
493 desktop->name = g_strdup ("main");
494 dbus_error_init (&error);
495 message = dbus_message_new_method_call (atspi_bus_registry,
497 atspi_interface_accessible,
501 reply = _atspi_dbus_send_with_reply_and_block (message);
502 if (!reply || strcmp (dbus_message_get_signature (reply), "a(so)") != 0)
504 g_error ("Couldn't get application list: %s", error.message);
506 dbus_message_unref (reply);
509 dbus_message_iter_init (reply, &iter);
510 dbus_message_iter_recurse (&iter, &iter_array);
511 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
513 const char *app_name, *path;
514 get_reference_from_iter (&iter_array, &app_name, &path);
515 add_accessibles (app_name);
516 add_app_to_desktop (desktop, app_name);
518 dbus_message_unref (reply);
523 _atspi_ref_accessible (const char *app, const char *path)
525 AtspiApplication *a = get_application (app);
527 if ( APP_IS_REGISTRY(a))
529 return ref_accessible_desktop (a);
531 return ref_accessible (app, path);
535 _atspi_dbus_return_accessible_from_message (DBusMessage *message)
537 DBusMessageIter iter;
538 AtspiAccessible *retval = NULL;
539 const char *signature = dbus_message_get_signature (message);
541 if (!strcmp (signature, "(so)"))
543 dbus_message_iter_init (message, &iter);
544 retval = _atspi_dbus_return_accessible_from_iter (&iter);
548 g_warning ("Atspi: Called _atspi_dbus_return_accessible_from_message with strange signature %s", signature);
550 dbus_message_unref (message);
555 _atspi_dbus_return_accessible_from_iter (DBusMessageIter *iter)
557 const char *app_name, *path;
559 get_reference_from_iter (iter, &app_name, &path);
560 return ref_accessible (app_name, path);
564 _atspi_dbus_return_hyperlink_from_message (DBusMessage *message)
566 DBusMessageIter iter;
567 AtspiHyperlink *retval = NULL;
568 const char *signature = dbus_message_get_signature (message);
570 if (!strcmp (signature, "(so)"))
572 dbus_message_iter_init (message, &iter);
573 retval = _atspi_dbus_return_hyperlink_from_iter (&iter);
577 g_warning ("Atspi: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s", signature);
579 dbus_message_unref (message);
584 _atspi_dbus_return_hyperlink_from_iter (DBusMessageIter *iter)
586 const char *app_name, *path;
588 get_reference_from_iter (iter, &app_name, &path);
589 return ref_hyperlink (app_name, path);
592 const char *cache_signal_type = "((so)(so)(so)a(so)assusau)";
594 static DBusHandlerResult
595 handle_add_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
597 DBusMessageIter iter;
598 const char *sender = dbus_message_get_sender (message);
599 AtspiApplication *app = get_application (sender);
600 const char *type = cache_signal_type;
602 if (strcmp (dbus_message_get_signature (message), cache_signal_type) != 0)
604 g_warning ("atspi: AddAccessible with unknown signature %s\n", dbus_message_get_signature (message));
608 dbus_message_iter_init (message, &iter);
609 add_accessible_from_iter (&iter);
612 static DBusHandlerResult
613 atspi_dbus_filter (DBusConnection *bus, DBusMessage *message, void *data)
615 int type = dbus_message_get_type (message);
616 const char *interface = dbus_message_get_interface (message);
617 const char *member = dbus_message_get_member (message);
621 if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
622 !strncmp (interface, "org.a11y.atspi.Event.", 21))
624 return atspi_dbus_handle_event (bus, message, data);
626 if (dbus_message_is_method_call (message, atspi_interface_device_event_listener, "notifyEvent"))
628 g_warning ("atspi: TODO: DeviceEvent");
629 //return handle_device_event (bus, message, data);
631 if (dbus_message_is_signal (message, atspi_interface_cache, "AddAccessible"))
633 return handle_add_accessible (bus, message, data);
635 if (dbus_message_is_signal (message, atspi_interface_cache, "RemoveAccessible"))
637 return handle_remove_accessible (bus, message, data);
639 /* TODO: Handle ChildrenChanged, StateChanged, PropertyChanged */
640 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
643 static const char *signal_interfaces[] =
645 "org.a11y.atspi.Event.Object",
646 "org.a11y.atspi.Event.Window",
647 "org.a11y.atspi.Event.Mouse",
648 "org.a11y.atspi.Event.Terminal",
649 "org.a11y.atspi.Event.Document",
650 "org.a11y.atspi.Event.Focus",
655 * Returns a 'canonicalized' value for DISPLAY,
656 * with the screen number stripped off if present.
658 * TODO: Avoid having duplicate functions for this here and in at-spi2-atk
661 spi_display_name (void)
663 static const char *canonical_display_name = NULL;
664 if (!canonical_display_name)
666 const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
669 display_env = g_getenv ("DISPLAY");
670 if (!display_env || !display_env[0])
671 canonical_display_name = ":0";
674 gchar *display_p, *screen_p;
675 canonical_display_name = g_strdup (display_env);
676 display_p = g_utf8_strrchr (canonical_display_name, -1, ':');
677 screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
678 if (screen_p && display_p && (screen_p > display_p))
686 canonical_display_name = display_env;
689 return canonical_display_name;
692 /* TODO: Avoid having duplicate functions for this here and in at-spi2-atk */
693 static DBusConnection *
694 get_accessibility_bus ()
698 Display *bridge_display;
700 unsigned char *data = NULL;
701 unsigned long nitems;
702 unsigned long leftover;
704 DBusConnection *bus = NULL;
707 bridge_display = XOpenDisplay (spi_display_name ());
710 g_warning ("AT_SPI: Could not get the display\n");
714 AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False);
715 XGetWindowProperty (bridge_display,
716 XDefaultRootWindow (bridge_display),
718 (long) BUFSIZ, False,
719 (Atom) 31, &actual_type, &actual_format,
720 &nitems, &leftover, &data);
722 dbus_error_init (&error);
727 ("AT-SPI: Accessibility bus not found - Using session bus.\n");
728 bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
731 g_warning ("AT-SPI: Couldn't connect to bus: %s\n", error.message);
737 bus = dbus_connection_open (data, &error);
740 g_warning ("AT-SPI: Couldn't connect to bus: %s\n", error.message);
745 if (!dbus_bus_register (bus, &error))
747 g_warning ("AT-SPI: Couldn't register with bus: %s\n", error.message);
759 * Connects to the accessibility registry and initializes the SPI.
761 * Returns: 0 on success, otherwise an integer error code.
781 dbus_error_init (&error);
782 bus = get_accessibility_bus ();
785 g_error ("Couldn't get session bus");
788 dbus_bus_register (bus, &error);
789 dbus_connection_setup_with_g_main(bus, g_main_context_default());
790 dbus_connection_add_filter (bus, atspi_dbus_filter, NULL, NULL);
791 match = g_strdup_printf ("type='signal',interface='%s',member='AddAccessible'", atspi_interface_cache);
792 dbus_error_init (&error);
793 dbus_bus_add_match (bus, match, &error);
795 match = g_strdup_printf ("type='signal',interface='%s',member='RemoveAccessible'", atspi_interface_cache);
796 dbus_bus_add_match (bus, match, &error);
798 match = g_strdup_printf ("type='signal',interface='%s',member='ChildrenChanged'", atspi_interface_event_object);
799 dbus_bus_add_match (bus, match, &error);
801 match = g_strdup_printf ("type='signal',interface='%s',member='PropertyChange'", atspi_interface_event_object);
802 dbus_bus_add_match (bus, match, &error);
804 match = g_strdup_printf ("type='signal',interface='%s',member='StateChanged'", atspi_interface_event_object);
805 dbus_bus_add_match (bus, match, &error);
810 static GMainLoop *mainloop;
815 * Starts/enters the main event loop for the AT-SPI services.
817 * (NOTE: This method does not return control, it is exited via a call to
818 * atspi_event_quit () from within an event handler).
822 atspi_event_main (void)
824 mainloop = g_main_loop_new (NULL, FALSE);
825 g_main_loop_run (mainloop);
831 * Quits the last main event loop for the SPI services,
832 * see atspi_event_main
835 atspi_event_quit (void)
837 g_main_loop_quit (mainloop);
843 * Disconnects from the Accessibility Registry and releases
844 * any floating resources. Call only once at exit.
846 * Returns: 0 if there were no leaks, otherwise non zero.
858 atspi_inited = FALSE;
862 leaked = g_hash_table_size (live_refs);
875 _atspi_dbus_call (gpointer obj, const char *interface, const char *method, GError **error, const char *type, ...)
880 AtspiObject *aobj = ATSPI_OBJECT (obj);
882 va_start (args, type);
883 dbus_error_init (&err);
884 retval = dbind_method_call_reentrant_va (_atspi_bus(), aobj->app->bus_name, aobj->path, interface, method, &err, type, args);
886 if (dbus_error_is_set (&err))
888 /* TODO: Set gerror */
889 dbus_error_free (&err);
895 _atspi_dbus_call_partial (gpointer obj,
896 const char *interface,
899 const char *type, ...)
903 va_start (args, type);
904 return _atspi_dbus_call_partial_va (obj, interface, method, error, type, args);
908 _atspi_dbus_call_partial_va (gpointer obj,
909 const char *interface,
915 AtspiObject *aobj = ATSPI_OBJECT (obj);
918 DBusMessage *msg = NULL, *reply = NULL;
919 DBusMessageIter iter;
922 dbus_error_init (&err);
924 msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
929 dbus_message_iter_init_append (msg, &iter);
930 dbind_any_marshal_va (&iter, &p, &args);
932 reply = dbind_send_and_allow_reentry (_atspi_bus(), msg, &err);
935 if (dbus_error_is_set (&err))
937 /* TODO: Set gerror */
938 dbus_error_free (&err);
944 _atspi_dbus_get_property (gpointer obj, const char *interface, const char *name, GError **error, const char *type, void *data)
946 DBusMessage *message, *reply;
947 DBusMessageIter iter, iter_variant;
949 dbus_bool_t retval = FALSE;
950 AtspiObject *aobj = ATSPI_OBJECT (obj);
955 message = dbus_message_new_method_call (aobj->app->bus_name,
957 "org.freedesktop.DBus.Properties",
961 // TODO: throw exception
964 dbus_message_append_args (message, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID);
965 dbus_error_init (&err);
966 reply = dbus_connection_send_with_reply_and_block (_atspi_bus(), message, 1000, &err);
967 dbus_message_unref (message);
970 // TODO: throw exception
973 dbus_message_iter_init (reply, &iter);
974 dbus_message_iter_recurse (&iter, &iter_variant);
975 if (dbus_message_iter_get_arg_type (&iter_variant) != type[0])
977 g_warning ("atspi_dbus_get_property: Wrong type: expected %s, got %c\n", type, dbus_message_iter_get_arg_type (&iter_variant));
980 if (!strcmp (type, "(so)"))
982 *((AtspiAccessible **)data) = _atspi_dbus_return_accessible_from_iter (&iter_variant);
986 dbus_message_iter_get_basic (&iter_variant, data);
987 dbus_message_unref (reply);
989 *(char **)data = g_strdup (*(char **)data);
997 _atspi_dbus_send_with_reply_and_block (DBusMessage *message)
1002 dbus_error_init (&err);
1003 /* TODO: Write this function; allow reentrancy */
1004 reply = dbus_connection_send_with_reply_and_block (_atspi_bus(), message, 1000, &err);
1005 dbus_message_unref (message);
1007 g_warning ("Atspi: Got error: %s\n", err.message);
1012 _atspi_dbus_hash_from_message (DBusMessage *message)
1014 DBusMessageIter iter;
1015 const char *signature;
1017 signature = dbus_message_get_signature (message);
1019 if (strcmp (signature, "a{ss}") != 0)
1021 g_warning ("Trying to get hash from message of unexpected type %s\n", signature);
1025 dbus_message_iter_init (message, &iter);
1026 return _atspi_dbus_hash_from_iter (&iter);
1030 _atspi_dbus_hash_from_iter (DBusMessageIter *iter)
1032 GHashTable *hash = g_hash_table_new (g_str_hash, g_str_equal);
1033 DBusMessageIter iter_array, iter_dict;
1035 dbus_message_iter_recurse (iter, &iter_array);
1036 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1038 const char *name, *value;
1039 dbus_message_iter_recurse (&iter_array, &iter_dict);
1040 dbus_message_iter_get_basic (&iter_dict, &name);
1041 dbus_message_iter_get_basic (&iter_dict, &value);
1042 g_hash_table_insert (hash, g_strdup (name), g_strdup (value));
1043 dbus_message_iter_next (&iter_array);
1049 _atspi_dbus_attribute_array_from_message (DBusMessage *message)
1051 DBusMessageIter iter;
1052 const char *signature;
1054 signature = dbus_message_get_signature (message);
1056 if (strcmp (signature, "a{ss}") != 0)
1058 g_warning ("Trying to get hash from message of unexpected type %s\n", signature);
1062 return _atspi_dbus_attribute_array_from_iter (&iter);
1066 _atspi_dbus_attribute_array_from_iter (DBusMessageIter *iter)
1068 DBusMessageIter iter_array, iter_dict;
1069 GArray *array = g_array_new (TRUE, TRUE, sizeof (gchar *));
1072 dbus_message_iter_recurse (iter, &iter_array);
1073 while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
1075 const char *name, *value;
1078 dbus_message_iter_recurse (&iter_array, &iter_dict);
1079 dbus_message_iter_get_basic (&iter_dict, &name);
1080 dbus_message_iter_get_basic (&iter_dict, &value);
1081 str = g_strdup_printf ("%s:;%s", name, value);
1082 new_array = g_array_append_val (array, str);
1085 dbus_message_iter_next (iter);;