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;
169 static GList *pending_removals = NULL;
170 static int in_send = 0;
174 convert_name_from_dbus (const char *name, gboolean path_hack)
177 const char *p = name;
181 return g_strdup ("");
183 ret = g_malloc (g_utf8_strlen (name, -1) * 2 + 1);
192 *q++ = tolower (*p++);
194 else if (path_hack && *p == '/')
207 cache_process_children_changed (AtspiEvent *event)
209 AtspiAccessible *child;
211 if (!G_VALUE_HOLDS (&event->any_data, ATSPI_TYPE_ACCESSIBLE) ||
212 !(event->source->cached_properties & ATSPI_CACHE_CHILDREN) ||
213 atspi_state_set_contains (event->source->states, ATSPI_STATE_MANAGES_DESCENDANTS))
216 child = g_value_get_object (&event->any_data);
220 if (!strncmp (event->type, "object:children-changed:add", 27))
222 g_ptr_array_remove (event->source->children, child); /* just to be safe */
223 if (event->detail1 < 0 || event->detail1 > event->source->children->len)
225 event->source->cached_properties &= ~ATSPI_CACHE_CHILDREN;
228 /* Unfortunately, there's no g_ptr_array_insert or similar */
229 g_ptr_array_add (event->source->children, NULL);
230 memmove (event->source->children->pdata + event->detail1 + 1,
231 event->source->children->pdata + event->detail1,
232 (event->source->children->len - event->detail1 - 1) * sizeof (gpointer));
233 g_ptr_array_index (event->source->children, event->detail1) = g_object_ref (child);
237 g_ptr_array_remove (event->source->children, child);
238 if (atspi_accessible_is_equal (child, child->parent.app->root))
239 g_object_run_dispose (G_OBJECT (child->parent.app));
244 cache_process_property_change (AtspiEvent *event)
246 if (!strcmp (event->type, "object:property-change:accessible-parent"))
248 if (event->source->accessible_parent)
249 g_object_unref (event->source->accessible_parent);
250 if (G_VALUE_HOLDS (&event->any_data, ATSPI_TYPE_ACCESSIBLE))
252 event->source->accessible_parent = g_value_dup_object (&event->any_data);
253 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_PARENT);
257 event->source->accessible_parent = NULL;
258 event->source->cached_properties &= ~ATSPI_CACHE_PARENT;
261 else if (!strcmp (event->type, "object:property-change:accessible-name"))
263 if (event->source->name)
264 g_free (event->source->name);
265 if (G_VALUE_HOLDS_STRING (&event->any_data))
267 event->source->name = g_value_dup_string (&event->any_data);
268 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_NAME);
272 event->source->name = NULL;
273 event->source->cached_properties &= ~ATSPI_CACHE_NAME;
276 else if (!strcmp (event->type, "object:property-change:accessible-description"))
278 if (event->source->description)
279 g_free (event->source->description);
280 if (G_VALUE_HOLDS_STRING (&event->any_data))
282 event->source->description = g_value_dup_string (&event->any_data);
283 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_DESCRIPTION);
287 event->source->description = NULL;
288 event->source->cached_properties &= ~ATSPI_CACHE_DESCRIPTION;
291 else if (!strcmp (event->type, "object:property-change:accessible-role"))
293 if (G_VALUE_HOLDS_INT (&event->any_data))
295 event->source->role = g_value_get_int (&event->any_data);
296 _atspi_accessible_add_cache (event->source, ATSPI_CACHE_ROLE);
300 event->source->cached_properties &= ~ATSPI_CACHE_ROLE;
306 cache_process_state_changed (AtspiEvent *event)
308 if (event->source->states)
309 atspi_state_set_set_by_name (event->source->states, event->type + 21,
314 demarshal_rect (DBusMessageIter *iter, AtspiRect *rect)
316 dbus_int32_t x, y, width, height;
317 DBusMessageIter iter_struct;
319 dbus_message_iter_recurse (iter, &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, &x);
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, &y);
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, &width);
328 dbus_message_iter_next (&iter_struct);
329 if (dbus_message_iter_get_arg_type (&iter_struct) != DBUS_TYPE_INT32) return FALSE;
330 dbus_message_iter_get_basic (&iter_struct, &height);
334 rect->height = height;
339 convert_event_type_to_dbus (const char *eventType, char **categoryp, char **namep, char **detailp, GPtrArray **matchrule_array)
341 gchar *tmp = _atspi_strdup_and_adjust_for_dbus (eventType);
342 char *category = NULL, *name = NULL, *detail = NULL;
343 char *saveptr = NULL;
345 if (tmp == NULL) return FALSE;
346 category = strtok_r (tmp, ":", &saveptr);
347 if (category) category = g_strdup (category);
348 name = strtok_r (NULL, ":", &saveptr);
351 name = g_strdup (name);
352 detail = strtok_r (NULL, ":", &saveptr);
353 if (detail) detail = g_strdup (detail);
358 (*matchrule_array) = g_ptr_array_new ();
359 matchrule = g_strdup_printf ("type='signal',interface='org.a11y.atspi.Event.%s'", category);
360 if (name && name [0])
362 gchar *new_str = g_strconcat (matchrule, ",member='", name, "'", NULL);
366 if (detail && detail [0])
368 gchar *new_str = g_strconcat (matchrule, ",arg0='", detail, "'", NULL);
369 g_ptr_array_add (*matchrule_array, new_str);
370 new_str = g_strconcat (matchrule, ",arg0path='", detail, "/'", NULL);
371 g_ptr_array_add (*matchrule_array, new_str);
375 g_ptr_array_add (*matchrule_array, matchrule);
377 if (categoryp) *categoryp = category;
378 else g_free (category);
379 if (namep) *namep = name;
380 else if (name) g_free (name);
381 if (detailp) *detailp = detail;
382 else if (detail) g_free (detail);
388 listener_entry_free (EventListenerEntry *e)
390 gpointer callback = (e->callback == remove_datum ? (gpointer)e->user_data : (gpointer)e->callback);
391 g_free (e->event_type);
392 g_free (e->category);
394 if (e->detail) g_free (e->detail);
395 callback_unref (callback);
397 for (int i=0; i < e->properties->len; i++)
398 g_free (g_array_index (e->properties, char*, i));
400 g_array_free (e->properties, TRUE);
406 * atspi_event_listener_register:
407 * @listener: The #AtspiEventListener to register against an event type.
408 * @event_type: a character string indicating the type of events for which
409 * notification is requested. Format is
410 * EventClass:major_type:minor_type:detail
411 * where all subfields other than EventClass are optional.
412 * EventClasses include "object", "window", "mouse",
413 * and toolkit events (e.g. "Gtk", "AWT").
414 * Examples: "focus:", "Gtk:GtkWidget:button_press_event".
416 * Adds an in-process callback function to an existing #AtspiEventListener.
418 * Legal object event types:
420 * (property change events)
422 * object:property-change
423 * object:property-change:accessible-name
424 * object:property-change:accessible-description
425 * object:property-change:accessible-parent
426 * object:property-change:accessible-value
427 * object:property-change:accessible-role
428 * object:property-change:accessible-table-caption
429 * object:property-change:accessible-table-column-description
430 * object:property-change:accessible-table-column-header
431 * object:property-change:accessible-table-row-description
432 * object:property-change:accessible-table-row-header
433 * object:property-change:accessible-table-summary
435 * (other object events)
437 * object:state-changed
438 * object:children-changed
439 * object:visible-data-changed
440 * object:selection-changed
441 * object:text-selection-changed
442 * object:text-changed
443 * object:text-caret-moved
444 * object:row-inserted
445 * object:row-reordered
447 * object:column-inserted
448 * object:column-reordered
449 * object:column-deleted
450 * object:model-changed
451 * object:active-descendant-changed
453 * (screen reader events)
454 * screen-reader:region-changed
464 * window:desktop-create
465 * window:desktop-destroy
488 * NOTE: this character string may be UTF-8, but should not contain byte
490 * (ascii ':'), except as a delimiter, since non-UTF-8 string
491 * delimiting functions are used internally.
492 * In general, listening to
493 * toolkit-specific events is not recommended.
495 * Currently, object:text-reading-position needs to be specified explicitly
496 * (it is not implied by object:text), since it is generated by the screen
497 * reader and is thus a special case internally.
499 * Returns: #TRUE if successful, otherwise #FALSE.
502 atspi_event_listener_register (AtspiEventListener *listener,
503 const gchar *event_type,
506 /* TODO: Keep track of which events have been registered, so that we
507 * deregister all of them when the event listener is destroyed */
509 return atspi_event_listener_register_from_callback (listener->callback,
511 listener->cb_destroyed,
516 * atspi_event_listener_register_full:
517 * @listener: The #AtspiEventListener to register against an event type.
518 * @event_type: a character string indicating the type of events for which
519 * notification is requested. See #atspi_event_listener_register
520 * for a description of the format and legal event types.
521 * @properties: (element-type gchar*) (transfer none) (allow-none): a list of
522 * properties that should be sent along with the event. The
523 * properties are valued for the duration of the event callback.k
526 * Adds an in-process callback function to an existing #AtspiEventListener.
528 * Returns: #TRUE if successful, otherwise #FALSE.
531 atspi_event_listener_register_full (AtspiEventListener *listener,
532 const gchar *event_type,
536 /* TODO: Keep track of which events have been registered, so that we
537 * deregister all of them when the event listener is destroyed */
539 return atspi_event_listener_register_from_callback_full (listener->callback,
541 listener->cb_destroyed,
548 notify_event_registered (EventListenerEntry *e)
552 dbind_method_call_reentrant (_atspi_bus (), atspi_bus_registry,
554 atspi_interface_registry,
556 NULL, "sas", e->event_type,
559 dbind_method_call_reentrant (_atspi_bus (), atspi_bus_registry,
561 atspi_interface_registry,
563 NULL, "s", e->event_type);
569 * atspi_event_listener_register_from_callback:
570 * @callback: (scope notified): the #AtspiEventListenerCB to be registered
571 * against an event type.
572 * @user_data: (closure): User data to be passed to the callback.
573 * @callback_destroyed: A #GDestroyNotify called when the callback is destroyed.
574 * @event_type: a character string indicating the type of events for which
575 * notification is requested. See #atspi_event_listener_register
576 * for a description of the format.
578 * Registers an #AtspiEventListenerCB against an @event_type.
580 * Returns: #TRUE if successfull, otherwise #FALSE.
584 atspi_event_listener_register_from_callback (AtspiEventListenerCB callback,
586 GDestroyNotify callback_destroyed,
587 const gchar *event_type,
590 return atspi_event_listener_register_from_callback_full (callback,
598 copy_event_properties (GArray *src)
602 GArray *dst = g_array_new (FALSE, FALSE, sizeof (char *));
606 for (i = 0; i < src->len; i++)
608 gchar *dup = g_strdup (g_array_index (src, char *, i));
609 g_array_append_val (dst, dup);
615 * atspi_event_listener_register_from_callback_full:
616 * @callback: (scope async): an #AtspiEventListenerCB function pointer.
617 * @user_data: (closure callback)
618 * @callback_destroyed: (destroy callback)
620 * @properties: (element-type utf8)
623 * Returns: #TRUE if successful, otherwise #FALSE.
627 atspi_event_listener_register_from_callback_full (AtspiEventListenerCB callback,
629 GDestroyNotify callback_destroyed,
630 const gchar *event_type,
634 EventListenerEntry *e;
636 GPtrArray *matchrule_array;
646 g_warning ("called atspi_event_listener_register_from_callback with a NULL event_type");
650 e = g_new (EventListenerEntry, 1);
651 e->event_type = g_strdup (event_type);
652 e->callback = callback;
653 e->user_data = user_data;
654 e->callback_destroyed = callback_destroyed;
655 callback_ref (callback == remove_datum ? (gpointer)user_data : (gpointer)callback,
657 if (!convert_event_type_to_dbus (event_type, &e->category, &e->name, &e->detail, &matchrule_array))
659 g_free (e->event_type);
663 e->properties = copy_event_properties (properties);
664 event_listeners = g_list_prepend (event_listeners, e);
665 for (i = 0; i < matchrule_array->len; i++)
667 char *matchrule = g_ptr_array_index (matchrule_array, i);
668 dbus_error_init (&d_error);
669 dbus_bus_add_match (_atspi_bus(), matchrule, &d_error);
670 if (dbus_error_is_set (&d_error))
672 g_warning ("AT-SPI: Adding match: %s", d_error.message);
673 dbus_error_free (&d_error);
674 /* TODO: Set error */
679 g_ptr_array_free (matchrule_array, TRUE);
681 notify_event_registered (e);
686 _atspi_reregister_event_listeners ()
689 EventListenerEntry *e;
691 for (l = event_listeners; l; l = l->next)
694 notify_event_registered (e);
699 * atspi_event_listener_register_no_data: (skip)
700 * @callback: (scope notified): the #AtspiEventListenerSimpleCB to be
701 * registered against an event type.
702 * @callback_destroyed: A #GDestroyNotify called when the callback is destroyed.
703 * @event_type: a character string indicating the type of events for which
704 * notification is requested. Format is
705 * EventClass:major_type:minor_type:detail
706 * where all subfields other than EventClass are optional.
707 * EventClasses include "object", "window", "mouse",
708 * and toolkit events (e.g. "Gtk", "AWT").
709 * Examples: "focus:", "Gtk:GtkWidget:button_press_event".
711 * Registers an #AtspiEventListenetSimpleCB. The method is similar to
712 * #atspi_event_listener_register, but @callback takes no user_data.
714 * Returns: #TRUE if successfull, otherwise #FALSE.
717 atspi_event_listener_register_no_data (AtspiEventListenerSimpleCB callback,
718 GDestroyNotify callback_destroyed,
719 const gchar *event_type,
722 return atspi_event_listener_register_from_callback (remove_datum, callback,
728 is_superset (const gchar *super, const gchar *sub)
730 if (!super || !super [0])
732 return (strcmp (super, sub) == 0);
736 * atspi_event_listener_deregister:
737 * @listener: The #AtspiEventListener to deregister.
738 * @event_type: a string specifying the event type for which this
739 * listener is to be deregistered.
741 * Deregisters an #AtspiEventListener from the registry, for a specific
744 * Returns: #TRUE if successful, otherwise #FALSE.
747 atspi_event_listener_deregister (AtspiEventListener *listener,
748 const gchar *event_type,
751 return atspi_event_listener_deregister_from_callback (listener->callback,
757 * atspi_event_listener_deregister_from_callback:
758 * @callback: (scope call): the #AtspiEventListenerCB registered against an
760 * @user_data: (closure): User data that was passed in for this callback.
761 * @event_type: a string specifying the event type for which this
762 * listener is to be deregistered.
764 * Deregisters an #AtspiEventListenerCB from the registry, for a specific
767 * Returns: #TRUE if successful, otherwise #FALSE.
770 atspi_event_listener_deregister_from_callback (AtspiEventListenerCB callback,
772 const gchar *event_type,
775 char *category, *name, *detail;
776 GPtrArray *matchrule_array;
779 gboolean result = TRUE;
785 if (!convert_event_type_to_dbus (event_type, &category, &name, &detail, &matchrule_array))
790 for (l = event_listeners; l;)
792 EventListenerEntry *e = l->data;
793 if (e->callback == callback &&
794 e->user_data == user_data &&
795 is_superset (category, e->category) &&
796 is_superset (name, e->name) &&
797 is_superset (detail, e->detail))
799 DBusMessage *message, *reply;
803 pending_removals = g_list_remove (pending_removals, e);
804 pending_removals = g_list_append (pending_removals, e);
807 event_listeners = g_list_remove (event_listeners, e);
808 for (i = 0; i < matchrule_array->len; i++)
810 char *matchrule = g_ptr_array_index (matchrule_array, i);
811 dbus_bus_remove_match (_atspi_bus(), matchrule, NULL);
813 message = dbus_message_new_method_call (atspi_bus_registry,
815 atspi_interface_registry,
821 dbus_message_append_args (message, DBUS_TYPE_STRING, &event_type, DBUS_TYPE_INVALID);
822 reply = _atspi_dbus_send_with_reply_and_block (message, error);
824 dbus_message_unref (reply);
827 listener_entry_free (e);
834 if (detail) g_free (detail);
835 for (i = 0; i < matchrule_array->len; i++)
836 g_free (g_ptr_array_index (matchrule_array, i));
837 g_ptr_array_free (matchrule_array, TRUE);
842 * atspi_event_listener_deregister_no_data: (skip)
843 * @callback: (scope call): the #AtspiEventListenerSimpleCB registered against
845 * @event_type: a string specifying the event type for which this
846 * listener is to be deregistered.
848 * deregisters an #AtspiEventListenerSimpleCB from the registry, for a specific
851 * Returns: #TRUE if successful, otherwise #FALSE.
854 atspi_event_listener_deregister_no_data (AtspiEventListenerSimpleCB callback,
855 const gchar *event_type,
858 return atspi_event_listener_deregister_from_callback (remove_datum, callback,
864 atspi_event_copy (AtspiEvent *src)
866 AtspiEvent *dst = g_new0 (AtspiEvent, 1);
867 dst->type = g_strdup (src->type);
868 dst->source = g_object_ref (src->source);
869 dst->detail1 = src->detail1;
870 dst->detail2 = src->detail2;
871 g_value_init (&dst->any_data, G_VALUE_TYPE (&src->any_data));
872 g_value_copy (&src->any_data, &dst->any_data);
874 dst->sender = g_object_ref (src->sender);
879 atspi_event_free (AtspiEvent *event)
881 g_object_unref (event->source);
882 g_free (event->type);
883 g_value_unset (&event->any_data);
884 g_clear_object (&event->sender);
889 detail_matches_listener (const char *event_detail, const char *listener_detail)
891 if (!listener_detail)
897 return !(listener_detail [strcspn (listener_detail, ":")] == '\0'
898 ? strncmp (listener_detail, event_detail,
899 strcspn (event_detail, ":"))
900 : strcmp (listener_detail, event_detail));
904 resolve_pending_removal (gpointer data)
906 event_listeners = g_list_remove (event_listeners, data);
907 listener_entry_free (data);
911 _atspi_send_event (AtspiEvent *e)
913 char *category, *name, *detail;
915 GList *called_listeners = NULL;
917 /* Ensure that the value is set to avoid a Python exception */
918 /* TODO: Figure out how to do this without using a private field */
919 if (e->any_data.g_type == 0)
921 g_value_init (&e->any_data, G_TYPE_INT);
922 g_value_set_int (&e->any_data, 0);
925 if (!convert_event_type_to_dbus (e->type, &category, &name, &detail, NULL))
927 g_warning ("AT-SPI: Couldn't parse event: %s\n", e->type);
931 for (l = event_listeners; l; l = g_list_next (l))
933 EventListenerEntry *entry = l->data;
934 if (!strcmp (category, entry->category) &&
935 (entry->name == NULL || !strcmp (name, entry->name)) &&
936 detail_matches_listener (detail, entry->detail))
939 for (l2 = called_listeners; l2; l2 = l2->next)
941 EventListenerEntry *e2 = l2->data;
942 if (entry->callback == e2->callback && entry->user_data == e2->user_data)
947 for (l2 = pending_removals; l2; l2 = l2->next)
949 if (l2->data == entry)
955 entry->callback (atspi_event_copy (e), entry->user_data);
956 called_listeners = g_list_prepend (called_listeners, entry);
961 if (detail) g_free (detail);
964 g_list_free (called_listeners);
966 g_list_free_full (pending_removals, resolve_pending_removal);
967 pending_removals = NULL;
971 _atspi_dbus_handle_event (DBusConnection *bus, DBusMessage *message, void *data)
974 const char *category = dbus_message_get_interface (message);
975 const char *sender = dbus_message_get_sender (message);
976 const char *member = dbus_message_get_member (message);
977 const char *signature = dbus_message_get_signature (message);
979 gchar *converted_type;
980 DBusMessageIter iter, iter_variant;
981 dbus_message_iter_init (message, &iter);
983 dbus_int32_t detail1, detail2;
985 GHashTable *cache = NULL;
987 if (strcmp (signature, "siiv(so)") != 0 &&
988 strcmp (signature, "siiva{sv}") != 0)
990 g_warning ("Got invalid signature %s for signal %s from interface %s\n", signature, member, category);
991 return DBUS_HANDLER_RESULT_HANDLED;
994 memset (&e, 0, sizeof (e));
998 category = g_utf8_strrchr (category, -1, '.');
999 if (category == NULL)
1002 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1009 // Note that the single caller of this function, process_deferred_message(), ignores the return value.
1010 // We should probably free the message if we aren't going to process it after all.
1011 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1013 dbus_message_iter_get_basic (&iter, &detail);
1014 dbus_message_iter_next (&iter);
1015 dbus_message_iter_get_basic (&iter, &detail1);
1016 e.detail1 = detail1;
1017 dbus_message_iter_next (&iter);
1018 dbus_message_iter_get_basic (&iter, &detail2);
1019 e.detail2 = detail2;
1020 dbus_message_iter_next (&iter);
1022 converted_type = convert_name_from_dbus (category, FALSE);
1023 name = convert_name_from_dbus (member, FALSE);
1024 detail = convert_name_from_dbus (detail, TRUE);
1026 if (strcasecmp (category, name) != 0)
1028 p = g_strconcat (converted_type, ":", name, NULL);
1029 g_free (converted_type);
1032 else if (detail [0] == '\0')
1034 p = g_strconcat (converted_type, ":", NULL);
1035 g_free (converted_type);
1039 if (detail[0] != '\0')
1041 p = g_strconcat (converted_type, ":", detail, NULL);
1042 g_free (converted_type);
1045 e.type = converted_type;
1046 if (strcmp (category, "ScreenReader") != 0)
1048 e.source = _atspi_ref_accessible (sender, dbus_message_get_path (message));
1049 if (e.source == NULL)
1051 g_warning ("Got no valid source accessible for signal %s from interface %s\n", member, category);
1052 g_free (converted_type);
1055 return DBUS_HANDLER_RESULT_HANDLED;
1059 dbus_message_iter_recurse (&iter, &iter_variant);
1060 switch (dbus_message_iter_get_arg_type (&iter_variant))
1062 case DBUS_TYPE_STRUCT:
1065 if (demarshal_rect (&iter_variant, &rect))
1067 g_value_init (&e.any_data, ATSPI_TYPE_RECT);
1068 g_value_set_boxed (&e.any_data, &rect);
1072 AtspiAccessible *accessible;
1073 accessible = _atspi_dbus_return_accessible_from_iter (&iter_variant);
1074 if (!strcmp (category, "ScreenReader"))
1076 g_object_unref (e.source);
1077 e.source = accessible;
1078 if (e.source == NULL)
1080 g_warning ("Got no valid source accessible for signal %s from interface %s\n", member, category);
1081 g_free (converted_type);
1084 return DBUS_HANDLER_RESULT_HANDLED;
1089 g_value_init (&e.any_data, ATSPI_TYPE_ACCESSIBLE);
1090 g_value_set_instance (&e.any_data, accessible);
1092 g_object_unref (accessible); /* value now owns it */
1097 case DBUS_TYPE_STRING:
1099 dbus_message_iter_get_basic (&iter_variant, &p);
1100 g_value_init (&e.any_data, G_TYPE_STRING);
1101 g_value_set_string (&e.any_data, p);
1108 g_assert (e.source != NULL);
1110 dbus_message_iter_next (&iter);
1111 if (dbus_message_iter_get_arg_type (&iter) == DBUS_TYPE_ARRAY)
1113 /* new form -- parse properties sent with event */
1114 cache = _atspi_dbus_update_cache_from_dict (e.source, &iter);
1117 e.sender = _atspi_ref_accessible (sender, ATSPI_DBUS_PATH_ROOT);
1119 if (!strncmp (e.type, "object:children-changed", 23))
1121 cache_process_children_changed (&e);
1123 else if (!strncmp (e.type, "object:property-change", 22))
1125 cache_process_property_change (&e);
1127 else if (!strncmp (e.type, "object:state-changed", 20))
1129 cache_process_state_changed (&e);
1130 if (detail && !strncmp(detail, "defunct", 7))
1132 remove_accessible_from_app_hash(sender, e.source);
1133 remove_accessible_from_app_hash(sender, e.sender);
1136 else if (!strncmp (e.type, "focus", 5))
1138 /* BGO#663992 - TODO: figure out the real problem */
1139 e.source->cached_properties &= ~(ATSPI_CACHE_STATES);
1142 _atspi_send_event (&e);
1145 _atspi_accessible_unref_cache (e.source);
1147 g_free (converted_type);
1150 g_object_unref (e.source);
1151 g_object_unref (e.sender);
1152 g_value_unset (&e.any_data);
1153 return DBUS_HANDLER_RESULT_HANDLED;
1156 G_DEFINE_BOXED_TYPE (AtspiEvent, atspi_event, atspi_event_copy, atspi_event_free)