2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2002 Ximian Inc.
6 * Copyright 2002 Sun Microsystems, 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 Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 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 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
25 #include "atspi-private.h"
26 #include "atspi-accessible-private.h"
33 AtspiEventListenerCB callback;
35 GDestroyNotify callback_destroyed;
43 G_DEFINE_TYPE (AtspiEventListener, atspi_event_listener, G_TYPE_OBJECT)
46 atspi_event_listener_init (AtspiEventListener *listener)
51 atspi_event_listener_class_init (AtspiEventListenerClass *klass)
56 remove_datum (AtspiEvent *event, void *user_data)
58 AtspiEventListenerSimpleCB cb = user_data;
65 GDestroyNotify callback_destroyed;
68 static GHashTable *callbacks;
71 callback_ref (void *callback, GDestroyNotify callback_destroyed)
77 callbacks = g_hash_table_new (g_direct_hash, g_direct_equal);
82 info = g_hash_table_lookup (callbacks, callback);
85 info = g_new (CallbackInfo, 1);
86 info->callback = callback;
87 info->callback_destroyed = callback_destroyed;
89 g_hash_table_insert (callbacks, callback, info);
96 callback_unref (gpointer callback)
102 info = g_hash_table_lookup (callbacks, callback);
105 g_warning ("AT-SPI: Dereferencing invalid callback %p\n", callback);
109 if (info->ref_count == 0)
112 /* TODO: Figure out why this seg faults from Python */
113 if (info->callback_destroyed)
114 (*info->callback_destroyed) (info->callback);
117 g_hash_table_remove (callbacks, callback);
122 * atspi_event_listener_new:
123 * @callback: (scope notified): An #AtspiEventListenerCB to be called
124 * when an event is fired.
125 * @user_data: (closure): data to pass to the callback.
126 * @callback_destroyed: A #GDestroyNotify called when the listener is freed
127 * and data associated with the callback should be freed. Can be NULL.
129 * Creates a new #AtspiEventListener associated with a specified @callback.
131 * Returns: (transfer full): A new #AtspiEventListener.
134 atspi_event_listener_new (AtspiEventListenerCB callback,
136 GDestroyNotify callback_destroyed)
138 AtspiEventListener *listener = g_object_new (ATSPI_TYPE_EVENT_LISTENER, NULL);
139 listener->callback = callback;
140 callback_ref (callback, callback_destroyed);
141 listener->user_data = user_data;
142 listener->cb_destroyed = callback_destroyed;
147 * atspi_event_listener_new_simple: (skip)
148 * @callback: (scope notified): An #AtspiEventListenerSimpleCB to be called
149 * when an event is fired.
150 * @callback_destroyed: A #GDestroyNotify called when the listener is freed
151 * and data associated with the callback should be freed. Can be NULL.
153 * Creates a new #AtspiEventListener associated with a specified @callback.
154 * Returns: (transfer full): A new #AtspiEventListener.
157 atspi_event_listener_new_simple (AtspiEventListenerSimpleCB callback,
158 GDestroyNotify callback_destroyed)
160 AtspiEventListener *listener = g_object_new (ATSPI_TYPE_EVENT_LISTENER, NULL);
161 listener->callback = remove_datum;
162 callback_ref (remove_datum, callback_destroyed);
163 listener->user_data = callback;
164 listener->cb_destroyed = callback_destroyed;
168 static GList *event_listeners = NULL;
171 convert_name_from_dbus (const char *name, gboolean path_hack)
174 const char *p = name;
178 return g_strdup ("");
180 ret = g_malloc (g_utf8_strlen (name, -1) * 2 + 1);
189 *q++ = tolower (*p++);
191 else if (path_hack && *p == '/')
204 cache_process_children_changed (AtspiEvent *event)
206 AtspiAccessible *child;
208 if (!G_VALUE_HOLDS (&event->any_data, ATSPI_TYPE_ACCESSIBLE) ||
209 !(event->source->cached_properties & ATSPI_CACHE_CHILDREN) ||
210 atspi_state_set_contains (event->source->states, ATSPI_STATE_MANAGES_DESCENDANTS))
213 child = g_value_get_object (&event->any_data);
217 if (!strncmp (event->type, "object:children-changed:add", 27))
219 g_ptr_array_remove (event->source->children, child); /* just to be safe */
220 if (event->detail1 < 0 || event->detail1 > event->source->children->len)
222 event->source->cached_properties &= ~ATSPI_CACHE_CHILDREN;
225 /* Unfortunately, there's no g_ptr_array_insert or similar */
226 g_ptr_array_add (event->source->children, NULL);
227 memmove (event->source->children->pdata + event->detail1 + 1,
228 event->source->children->pdata + event->detail1,
229 (event->source->children->len - event->detail1 - 1) * sizeof (gpointer));
230 g_ptr_array_index (event->source->children, event->detail1) = g_object_ref (child);
234 g_ptr_array_remove (event->source->children, child);
235 if (child == child->parent.app->root)
236 g_object_run_dispose (G_OBJECT (child->parent.app));
241 cache_process_property_change (AtspiEvent *event)
243 if (!strcmp (event->type, "object:property-change:accessible-parent"))
245 if (event->source->accessible_parent)
246 g_object_unref (event->source->accessible_parent);
247 if (G_VALUE_HOLDS (&event->any_data, ATSPI_TYPE_ACCESSIBLE))
249 event->source->accessible_parent = g_value_dup_object (&event->any_data);
250 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_PARENT);
254 event->source->accessible_parent = NULL;
255 event->source->cached_properties &= ~ATSPI_CACHE_PARENT;
258 else if (!strcmp (event->type, "object:property-change:accessible-name"))
260 if (event->source->name)
261 g_free (event->source->name);
262 if (G_VALUE_HOLDS_STRING (&event->any_data))
264 event->source->name = g_value_dup_string (&event->any_data);
265 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_NAME);
269 event->source->name = NULL;
270 event->source->cached_properties &= ~ATSPI_CACHE_NAME;
273 else if (!strcmp (event->type, "object:property-change:accessible-description"))
275 if (event->source->description)
276 g_free (event->source->description);
277 if (G_VALUE_HOLDS_STRING (&event->any_data))
279 event->source->description = g_value_dup_string (&event->any_data);
280 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_DESCRIPTION);
284 event->source->description = NULL;
285 event->source->cached_properties &= ~ATSPI_CACHE_DESCRIPTION;
288 else if (!strcmp (event->type, "object:property-change:accessible-role"))
290 if (G_VALUE_HOLDS_INT (&event->any_data))
292 event->source->role = g_value_get_int (&event->any_data);
293 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_ROLE);
297 event->source->cached_properties &= ~ATSPI_CACHE_ROLE;
303 cache_process_state_changed (AtspiEvent *event)
305 if (event->source->states)
306 atspi_state_set_set_by_name (event->source->states, event->type + 21,
311 demarshal_rect (DBusMessageIter *iter, AtspiRect *rect)
313 dbus_int32_t x, y, width, height;
314 DBusMessageIter iter_struct;
316 dbus_message_iter_recurse (iter, &iter_struct);
317 if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
318 dbus_message_iter_get_basic (&iter_struct, &x);
319 dbus_message_iter_next (&iter_struct);
320 if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
321 dbus_message_iter_get_basic (&iter_struct, &y);
322 dbus_message_iter_next (&iter_struct);
323 if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
324 dbus_message_iter_get_basic (&iter_struct, &width);
325 dbus_message_iter_next (&iter_struct);
326 if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
327 dbus_message_iter_get_basic (&iter_struct, &height);
331 rect->height = height;
336 strdup_and_adjust_for_dbus (const char *s)
338 gchar *d = g_strdup (s);
349 memmove (p, p + 1, g_utf8_strlen (p, -1));
357 p [1] = toupper (p [1]);
361 d [0] = toupper (d [0]);
366 convert_event_type_to_dbus (const char *eventType, char **categoryp, char **namep, char **detailp, GPtrArray **matchrule_array)
368 gchar *tmp = strdup_and_adjust_for_dbus (eventType);
369 char *category = NULL, *name = NULL, *detail = NULL;
370 char *saveptr = NULL;
372 if (tmp == NULL) return FALSE;
373 category = strtok_r (tmp, ":", &saveptr);
374 if (category) category = g_strdup (category);
375 name = strtok_r (NULL, ":", &saveptr);
378 name = g_strdup (name);
379 detail = strtok_r (NULL, ":", &saveptr);
380 if (detail) detail = g_strdup (detail);
385 (*matchrule_array) = g_ptr_array_new ();
386 matchrule = g_strdup_printf ("type='signal',interface='org.a11y.atspi.Event.%s'", category);
387 if (name && name [0])
389 gchar *new_str = g_strconcat (matchrule, ",member='", name, "'", NULL);
393 if (detail && detail [0])
395 gchar *new_str = g_strconcat (matchrule, ",arg0='", detail, "'", NULL);
396 g_ptr_array_add (*matchrule_array, new_str);
397 new_str = g_strconcat (matchrule, ",arg0path='", detail, "/'", NULL);
398 g_ptr_array_add (*matchrule_array, new_str);
402 g_ptr_array_add (*matchrule_array, matchrule);
404 if (categoryp) *categoryp = category;
405 else g_free (category);
406 if (namep) *namep = name;
407 else if (name) g_free (name);
408 if (detailp) *detailp = detail;
409 else if (detail) g_free (detail);
415 listener_entry_free (EventListenerEntry *e)
417 gpointer callback = (e->callback == remove_datum ? (gpointer)e->user_data : (gpointer)e->callback);
418 g_free (e->event_type);
419 g_free (e->category);
421 if (e->detail) g_free (e->detail);
422 callback_unref (callback);
427 * atspi_event_listener_register:
428 * @listener: The #AtspiEventListener to register against an event type.
429 * @event_type: a character string indicating the type of events for which
430 * notification is requested. Format is
431 * EventClass:major_type:minor_type:detail
432 * where all subfields other than EventClass are optional.
433 * EventClasses include "object", "window", "mouse",
434 * and toolkit events (e.g. "Gtk", "AWT").
435 * Examples: "focus:", "Gtk:GtkWidget:button_press_event".
437 * Adds an in-process callback function to an existing #AtspiEventListener.
439 * Legal object event types:
441 * (property change events)
443 * object:property-change
444 * object:property-change:accessible-name
445 * object:property-change:accessible-description
446 * object:property-change:accessible-parent
447 * object:property-change:accessible-value
448 * object:property-change:accessible-role
449 * object:property-change:accessible-table-caption
450 * object:property-change:accessible-table-column-description
451 * object:property-change:accessible-table-column-header
452 * object:property-change:accessible-table-row-description
453 * object:property-change:accessible-table-row-header
454 * object:property-change:accessible-table-summary
456 * (other object events)
458 * object:state-changed
459 * object:children-changed
460 * object:visible-data-changed
461 * object:selection-changed
462 * object:text-selection-changed
463 * object:text-changed
464 * object:text-caret-moved
465 * object:row-inserted
466 * object:row-reordered
468 * object:column-inserted
469 * object:column-reordered
470 * object:column-deleted
471 * object:model-changed
472 * object:active-descendant-changed
474 * (screen reader events)
475 * screen-reader:region-changed
485 * window:desktop-create
486 * window:desktop-destroy
509 * NOTE: this character string may be UTF-8, but should not contain byte
511 * (ascii ':'), except as a delimiter, since non-UTF-8 string
512 * delimiting functions are used internally.
513 * In general, listening to
514 * toolkit-specific events is not recommended.
516 * Currently, object:text-reading-position needs to be specified explicitly
517 * (it is not implied by object:text), since it is generated by the screen
518 * reader and is thus a special case internally.
520 * Returns: #TRUE if successful, otherwise #FALSE.
523 atspi_event_listener_register (AtspiEventListener *listener,
524 const gchar *event_type,
527 /* TODO: Keep track of which events have been registered, so that we
528 * deregister all of them when the event listener is destroyed */
530 return atspi_event_listener_register_from_callback (listener->callback,
532 listener->cb_destroyed,
537 * atspi_event_listener_register_full:
538 * @listener: The #AtspiEventListener to register against an event type.
539 * @event_type: a character string indicating the type of events for which
540 * notification is requested. See #atspi_event_listener_register
541 * for a description of the format and legal event types.
542 * @properties: (element-type gchar*) (transfer none) (allow-none): a list of
543 * properties that should be sent along with the event. The
544 * properties are valued for the duration of the event callback.k
547 * Adds an in-process callback function to an existing #AtspiEventListener.
549 * Returns: #TRUE if successful, otherwise #FALSE.
552 atspi_event_listener_register_full (AtspiEventListener *listener,
553 const gchar *event_type,
557 /* TODO: Keep track of which events have been registered, so that we
558 * deregister all of them when the event listener is destroyed */
560 return atspi_event_listener_register_from_callback_full (listener->callback,
562 listener->cb_destroyed,
569 notify_event_registered (EventListenerEntry *e)
573 dbind_method_call_reentrant (_atspi_bus (), atspi_bus_registry,
575 atspi_interface_registry,
577 NULL, "sas", e->event_type,
580 dbind_method_call_reentrant (_atspi_bus (), atspi_bus_registry,
582 atspi_interface_registry,
584 NULL, "s", e->event_type);
590 * atspi_event_listener_register_from_callback:
591 * @callback: (scope notified): the #AtspiEventListenerCB to be registered
592 * against an event type.
593 * @user_data: (closure): User data to be passed to the callback.
594 * @callback_destroyed: A #GDestroyNotify called when the callback is destroyed.
595 * @event_type: a character string indicating the type of events for which
596 * notification is requested. See #atspi_event_listener_register
597 * for a description of the format.
599 * Registers an #AtspiEventListenerCB against an @event_type.
601 * Returns: #TRUE if successfull, otherwise #FALSE.
605 atspi_event_listener_register_from_callback (AtspiEventListenerCB callback,
607 GDestroyNotify callback_destroyed,
608 const gchar *event_type,
611 return atspi_event_listener_register_from_callback_full (callback,
619 copy_event_properties (GArray *src)
623 GArray *dst = g_array_new (FALSE, FALSE, sizeof (char *));
627 for (i = 0; i < src->len; i++)
629 gchar *dup = g_strdup (g_array_index (src, char *, i));
630 g_array_append_val (dst, dup);
636 * atspi_event_listener_register_from_callback_full:
637 * @callback: (scope async): an #AtspiEventListenerCB function pointer.
638 * @user_data: (closure callback)
639 * @callback_destroyed: (destroy callback)
641 * @properties: (element-type utf8)
644 * Returns: #TRUE if successful, otherwise #FALSE.
648 atspi_event_listener_register_from_callback_full (AtspiEventListenerCB callback,
650 GDestroyNotify callback_destroyed,
651 const gchar *event_type,
655 EventListenerEntry *e;
657 GPtrArray *matchrule_array;
667 g_warning ("called atspi_event_listener_register_from_callback with a NULL event_type");
671 e = g_new (EventListenerEntry, 1);
672 e->event_type = g_strdup (event_type);
673 e->callback = callback;
674 e->user_data = user_data;
675 e->callback_destroyed = callback_destroyed;
676 callback_ref (callback == remove_datum ? (gpointer)user_data : (gpointer)callback,
678 if (!convert_event_type_to_dbus (event_type, &e->category, &e->name, &e->detail, &matchrule_array))
683 e->properties = copy_event_properties (properties);
684 event_listeners = g_list_prepend (event_listeners, e);
685 for (i = 0; i < matchrule_array->len; i++)
687 char *matchrule = g_ptr_array_index (matchrule_array, i);
688 dbus_error_init (&d_error);
689 dbus_bus_add_match (_atspi_bus(), matchrule, &d_error);
690 if (dbus_error_is_set (&d_error))
692 g_warning ("AT-SPI: Adding match: %s", d_error.message);
693 dbus_error_free (&d_error);
694 /* TODO: Set error */
699 g_ptr_array_free (matchrule_array, TRUE);
701 notify_event_registered (e);
706 _atspi_reregister_event_listeners ()
709 EventListenerEntry *e;
711 for (l = event_listeners; l; l = l->next)
714 notify_event_registered (e);
719 * atspi_event_listener_register_no_data: (skip)
720 * @callback: (scope notified): the #AtspiEventListenerSimpleCB to be
721 * registered against an event type.
722 * @callback_destroyed: A #GDestroyNotify called when the callback is destroyed.
723 * @event_type: a character string indicating the type of events for which
724 * notification is requested. Format is
725 * EventClass:major_type:minor_type:detail
726 * where all subfields other than EventClass are optional.
727 * EventClasses include "object", "window", "mouse",
728 * and toolkit events (e.g. "Gtk", "AWT").
729 * Examples: "focus:", "Gtk:GtkWidget:button_press_event".
731 * Registers an #AtspiEventListenetSimpleCB. The method is similar to
732 * #atspi_event_listener_register, but @callback takes no user_data.
734 * Returns: #TRUE if successfull, otherwise #FALSE.
737 atspi_event_listener_register_no_data (AtspiEventListenerSimpleCB callback,
738 GDestroyNotify callback_destroyed,
739 const gchar *event_type,
742 return atspi_event_listener_register_from_callback (remove_datum, callback,
748 is_superset (const gchar *super, const gchar *sub)
750 if (!super || !super [0])
752 return (strcmp (super, sub) == 0);
756 * atspi_event_listener_deregister:
757 * @listener: The #AtspiEventListener to deregister.
758 * @event_type: a string specifying the event type for which this
759 * listener is to be deregistered.
761 * Deregisters an #AtspiEventListener from the registry, for a specific
764 * Returns: #TRUE if successful, otherwise #FALSE.
767 atspi_event_listener_deregister (AtspiEventListener *listener,
768 const gchar *event_type,
771 return atspi_event_listener_deregister_from_callback (listener->callback,
777 * atspi_event_listener_deregister_from_callback:
778 * @callback: (scope call): the #AtspiEventListenerCB registered against an
780 * @user_data: (closure): User data that was passed in for this callback.
781 * @event_type: a string specifying the event type for which this
782 * listener is to be deregistered.
784 * Deregisters an #AtspiEventListenerCB from the registry, for a specific
787 * Returns: #TRUE if successful, otherwise #FALSE.
790 atspi_event_listener_deregister_from_callback (AtspiEventListenerCB callback,
792 const gchar *event_type,
795 char *category, *name, *detail;
796 GPtrArray *matchrule_array;
800 if (!convert_event_type_to_dbus (event_type, &category, &name, &detail, &matchrule_array))
809 for (l = event_listeners; l;)
811 EventListenerEntry *e = l->data;
812 if (e->callback == callback &&
813 e->user_data == user_data &&
814 is_superset (category, e->category) &&
815 is_superset (name, e->name) &&
816 is_superset (detail, e->detail))
818 gboolean need_replace;
819 DBusMessage *message, *reply;
820 need_replace = (l == event_listeners);
821 l = g_list_remove (l, e);
824 for (i = 0; i < matchrule_array->len; i++)
826 char *matchrule = g_ptr_array_index (matchrule_array, i);
827 dbus_bus_remove_match (_atspi_bus(), matchrule, NULL);
829 message = dbus_message_new_method_call (atspi_bus_registry,
831 atspi_interface_registry,
835 dbus_message_append_args (message, DBUS_TYPE_STRING, &event_type, DBUS_TYPE_INVALID);
836 reply = _atspi_dbus_send_with_reply_and_block (message, error);
838 dbus_message_unref (reply);
840 listener_entry_free (e);
842 else l = g_list_next (l);
846 if (detail) g_free (detail);
847 for (i = 0; i < matchrule_array->len; i++)
848 g_free (g_ptr_array_index (matchrule_array, i));
849 g_ptr_array_free (matchrule_array, TRUE);
854 * atspi_event_listener_deregister_no_data: (skip)
855 * @callback: (scope call): the #AtspiEventListenerSimpleCB registered against
857 * @event_type: a string specifying the event type for which this
858 * listener is to be deregistered.
860 * deregisters an #AtspiEventListenerSimpleCB from the registry, for a specific
863 * Returns: #TRUE if successful, otherwise #FALSE.
866 atspi_event_listener_deregister_no_data (AtspiEventListenerSimpleCB callback,
867 const gchar *event_type,
870 return atspi_event_listener_deregister_from_callback (remove_datum, callback,
876 atspi_event_copy (AtspiEvent *src)
878 AtspiEvent *dst = g_new0 (AtspiEvent, 1);
879 dst->type = g_strdup (src->type);
880 dst->source = g_object_ref (src->source);
881 dst->detail1 = src->detail1;
882 dst->detail2 = src->detail2;
883 g_value_init (&dst->any_data, G_VALUE_TYPE (&src->any_data));
884 g_value_copy (&src->any_data, &dst->any_data);
885 dst->sender = g_object_ref (src->sender);
890 atspi_event_free (AtspiEvent *event)
892 g_object_unref (event->source);
893 g_free (event->type);
894 g_value_unset (&event->any_data);
895 g_object_unref (event->sender);
900 detail_matches_listener (const char *event_detail, const char *listener_detail)
902 if (!listener_detail)
906 return (listener_detail ? FALSE : TRUE);
908 return !(listener_detail [strcspn (listener_detail, ":")] == '\0'
909 ? strncmp (listener_detail, event_detail,
910 strcspn (event_detail, ":"))
911 : strcmp (listener_detail, event_detail));
915 _atspi_send_event (AtspiEvent *e)
917 char *category, *name, *detail;
919 GList *called_listeners = NULL;
921 /* Ensure that the value is set to avoid a Python exception */
922 /* TODO: Figure out how to do this without using a private field */
923 if (e->any_data.g_type == 0)
925 g_value_init (&e->any_data, G_TYPE_INT);
926 g_value_set_int (&e->any_data, 0);
929 if (!convert_event_type_to_dbus (e->type, &category, &name, &detail, NULL))
931 g_warning ("AT-SPI: Couldn't parse event: %s\n", e->type);
934 for (l = event_listeners; l; l = g_list_next (l))
936 EventListenerEntry *entry = l->data;
937 if (!strcmp (category, entry->category) &&
938 (entry->name == NULL || !strcmp (name, entry->name)) &&
939 detail_matches_listener (detail, entry->detail))
942 for (l2 = called_listeners; l2; l2 = l2->next)
944 EventListenerEntry *e2 = l2->data;
945 if (entry->callback == e2->callback && entry->user_data == e2->user_data)
950 entry->callback (atspi_event_copy (e), entry->user_data);
951 called_listeners = g_list_prepend (called_listeners, entry);
955 if (detail) g_free (detail);
958 g_list_free (called_listeners);
962 _atspi_dbus_handle_event (DBusConnection *bus, DBusMessage *message, void *data)
965 const char *category = dbus_message_get_interface (message);
966 const char *sender = dbus_message_get_sender (message);
967 const char *member = dbus_message_get_member (message);
968 const char *signature = dbus_message_get_signature (message);
970 gchar *converted_type;
971 DBusMessageIter iter, iter_variant;
972 dbus_message_iter_init (message, &iter);
974 dbus_int32_t detail1, detail2;
976 GHashTable *cache = NULL;
978 if (strcmp (signature, "siiv(so)") != 0 &&
979 strcmp (signature, "siiva{sv}") != 0)
981 g_warning ("Got invalid signature %s for signal %s from interface %s\n", signature, member, category);
982 return DBUS_HANDLER_RESULT_HANDLED;
985 memset (&e, 0, sizeof (e));
989 category = g_utf8_strrchr (category, -1, '.');
990 if (category == NULL)
993 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
997 dbus_message_iter_get_basic (&iter, &detail);
998 dbus_message_iter_next (&iter);
999 dbus_message_iter_get_basic (&iter, &detail1);
1000 e.detail1 = detail1;
1001 dbus_message_iter_next (&iter);
1002 dbus_message_iter_get_basic (&iter, &detail2);
1003 e.detail2 = detail2;
1004 dbus_message_iter_next (&iter);
1006 converted_type = convert_name_from_dbus (category, FALSE);
1007 name = convert_name_from_dbus (member, FALSE);
1008 detail = convert_name_from_dbus (detail, TRUE);
1010 if (strcasecmp (category, name) != 0)
1012 p = g_strconcat (converted_type, ":", name, NULL);
1013 g_free (converted_type);
1016 else if (detail [0] == '\0')
1018 p = g_strconcat (converted_type, ":", NULL);
1019 g_free (converted_type);
1023 if (detail[0] != '\0')
1025 p = g_strconcat (converted_type, ":", detail, NULL);
1026 g_free (converted_type);
1029 e.type = converted_type;
1030 if (strcmp (category, "ScreenReader") != 0)
1032 e.source = _atspi_ref_accessible (sender, dbus_message_get_path (message));
1033 if (e.source == NULL)
1035 g_warning ("Got no valid source accessible for signal %s from interface %s\n", member, category);
1036 g_free (converted_type);
1039 return DBUS_HANDLER_RESULT_HANDLED;
1043 dbus_message_iter_recurse (&iter, &iter_variant);
1044 switch (dbus_message_iter_get_arg_type (&iter_variant))
1046 case DBUS_TYPE_STRUCT:
1049 if (demarshal_rect (&iter_variant, &rect))
1051 g_value_init (&e.any_data, ATSPI_TYPE_RECT);
1052 g_value_set_boxed (&e.any_data, &rect);
1056 AtspiAccessible *accessible;
1057 accessible = _atspi_dbus_return_accessible_from_iter (&iter_variant);
1058 if (!strcmp (category, "ScreenReader"))
1060 e.source = accessible;
1064 g_value_init (&e.any_data, ATSPI_TYPE_ACCESSIBLE);
1065 g_value_set_instance (&e.any_data, accessible);
1067 g_object_unref (accessible); /* value now owns it */
1072 case DBUS_TYPE_STRING:
1074 dbus_message_iter_get_basic (&iter_variant, &p);
1075 g_value_init (&e.any_data, G_TYPE_STRING);
1076 g_value_set_string (&e.any_data, p);
1083 dbus_message_iter_next (&iter);
1084 if (dbus_message_iter_get_arg_type (&iter) == DBUS_TYPE_ARRAY)
1086 /* new form -- parse properties sent with event */
1087 cache = _atspi_dbus_update_cache_from_dict (e.source, &iter);
1090 e.sender = _atspi_ref_accessible (sender, ATSPI_DBUS_PATH_ROOT);
1092 if (!strncmp (e.type, "object:children-changed", 23))
1094 cache_process_children_changed (&e);
1096 else if (!strncmp (e.type, "object:property-change", 22))
1098 cache_process_property_change (&e);
1100 else if (!strncmp (e.type, "object:state-changed", 20))
1102 cache_process_state_changed (&e);
1104 else if (!strncmp (e.type, "focus", 5))
1106 /* BGO#663992 - TODO: figure out the real problem */
1107 e.source->cached_properties &= ~(ATSPI_CACHE_STATES);
1110 _atspi_send_event (&e);
1113 _atspi_accessible_unref_cache (e.source);
1115 g_free (converted_type);
1118 g_object_unref (e.source);
1119 g_value_unset (&e.any_data);
1120 return DBUS_HANDLER_RESULT_HANDLED;
1123 G_DEFINE_BOXED_TYPE (AtspiEvent, atspi_event, atspi_event_copy, atspi_event_free)