2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2008, 2009, Codethink Ltd.
6 * Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
7 * Copyright 2001, 2002, 2003 Ximian, Inc.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
28 #include <droute/droute.h>
31 #include "accessible-register.h"
33 #include "common/spi-dbus.h"
35 static GArray *listener_ids = NULL;
37 static gint atk_bridge_key_event_listener_id;
38 static gint atk_bridge_focus_tracker_id;
40 /*---------------------------------------------------------------------------*/
42 #define ITF_EVENT_OBJECT "org.freedesktop.atspi.Event.Object"
43 #define ITF_EVENT_WINDOW "org.freedesktop.atspi.Event.Window"
44 #define ITF_EVENT_DOCUMENT "org.freedesktop.atspi.Event.Document"
45 #define ITF_EVENT_FOCUS "org.freedesktop.atspi.Event.Focus"
47 /*---------------------------------------------------------------------------*/
50 set_reply (DBusPendingCall * pending, void *user_data)
52 void **replyptr = (void **) user_data;
54 *replyptr = dbus_pending_call_steal_reply (pending);
58 send_and_allow_reentry (DBusConnection * bus, DBusMessage * message)
60 DBusPendingCall *pending;
61 DBusMessage *reply = NULL;
63 if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
67 dbus_pending_call_set_notify (pending, set_reply, (void *) &reply, NULL);
70 if (!dbus_connection_read_write_dispatch (bus, -1))
77 Accessibility_DeviceEventController_NotifyListenersSync (const
78 Accessibility_DeviceEvent
83 dbus_bool_t consumed = FALSE;
86 dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
88 SPI_DBUS_INTERFACE_DEC,
89 "NotifyListenersSync");
91 dbus_error_init (&error);
92 if (spi_dbus_marshal_deviceEvent (message, key_event))
95 send_and_allow_reentry (atk_adaptor_app_data->bus, message);
99 dbus_error_init (&error);
100 dbus_message_get_args (reply, &error, DBUS_TYPE_BOOLEAN, &consumed,
102 dbus_message_unref (reply);
105 dbus_message_unref (message);
110 spi_init_keystroke_from_atk_key_event (Accessibility_DeviceEvent * keystroke,
111 AtkKeyEventStruct * event)
113 keystroke->id = (dbus_int32_t) event->keyval;
114 keystroke->hw_code = (dbus_int16_t) event->keycode;
115 keystroke->timestamp = (dbus_uint32_t) event->timestamp;
116 keystroke->modifiers = (dbus_uint16_t) (event->state & 0xFFFF);
121 keystroke->event_string = g_strdup (event->string);
122 c = g_utf8_get_char_validated (event->string, -1);
123 if (c > 0 && g_unichar_isprint (c))
124 keystroke->is_text = TRUE;
126 keystroke->is_text = FALSE;
130 keystroke->event_string = g_strdup ("");
131 keystroke->is_text = FALSE;
135 case (ATK_KEY_EVENT_PRESS):
136 keystroke->type = Accessibility_KEY_PRESSED_EVENT;
138 case (ATK_KEY_EVENT_RELEASE):
139 keystroke->type = Accessibility_KEY_RELEASED_EVENT;
147 ("key_event type %d; val=%d code=%d modifiers=%x name=%s is_text=%d, time=%lx\n",
148 (int) keystroke->type, (int) keystroke->id, (int) keystroke->hw_code,
149 (int) keystroke->modifiers, keystroke->event_string,
150 (int) keystroke->is_text, (unsigned long) keystroke->timestamp);
156 spi_atk_bridge_key_listener (AtkKeyEventStruct * event, gpointer data)
159 Accessibility_DeviceEvent key_event;
161 spi_init_keystroke_from_atk_key_event (&key_event, event);
164 Accessibility_DeviceEventController_NotifyListenersSync (&key_event);
166 if (key_event.event_string)
167 g_free (key_event.event_string);
173 /*---------------------------------------------------------------------------*/
176 * Emits an AT-SPI event.
177 * AT-SPI events names are split into three parts:
179 * This is mapped onto D-Bus events as:
180 * D-Bus Interface:Signal Name:Detail argument
182 * Marshals a basic type into the 'any_data' attribute of
187 DBusSignalName (const gchar * s)
189 gchar *ret = g_strdup (s);
194 ret[0] = toupper (ret[0]);
195 while ((t = strchr (ret, '-')) != NULL)
197 memmove (t, t + 1, strlen (t));
204 emit (AtkObject * accessible,
208 dbus_int32_t detail1,
209 dbus_int32_t detail2, const char *type, const void *val)
214 /* TODO this is a hack, used becuase child-added events are not guaranteed.
215 * On recieving an event from a non-registered object we check if it can be safely
216 * registered before sending the event.
218 path = atk_dbus_object_attempt_registration (accessible);
220 /* Tough decision here
221 * We won't send events from accessible
222 * objects that have not yet been added to the accessible tree.
227 g_debug ("AT-SPI: Event recieved from non-registered object");
232 cname = DBusSignalName (major);
233 spi_dbus_emit_signal (atk_adaptor_app_data->bus, path, klass, cname, minor,
234 detail1, detail2, type, val);
239 /*---------------------------------------------------------------------------*/
242 * Emits an AT-SPI event, marshalling a BoundingBox structure into the
243 * 'any_data' variant of the event.
246 emit_rect (AtkObject * accessible,
248 const char *major, const char *minor, AtkRectangle * rect)
251 DBusMessageIter iter, variant, sub;
253 dbus_int32_t dummy = 0;
255 path = atk_dbus_object_to_path (accessible, FALSE);
257 /* Tough decision here
258 * We won't send events from accessible
259 * objects that have not yet been added to the accessible tree.
272 * This is very annoying, but as '-' isn't a legal signal
273 * name in D-Bus (Why not??!?) The names need converting
274 * on this side, and again on the client side.
276 cname = DBusSignalName (major);
278 sig = dbus_message_new_signal (path, klass, cname);
282 dbus_message_iter_init_append (sig, &iter);
283 dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
284 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &dummy);
285 dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &dummy);
287 dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "(iiii)",
289 dbus_message_iter_open_container (&variant, DBUS_TYPE_STRUCT, NULL, &sub);
290 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->x));
291 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->y));
292 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->width));
293 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->height));
294 dbus_message_iter_close_container (&variant, &sub);
295 dbus_message_iter_close_container (&iter, &variant);
297 dbus_connection_send (atk_adaptor_app_data->bus, sig, NULL);
299 dbus_message_unref (sig);
302 /*---------------------------------------------------------------------------*/
305 * The focus listener handles the ATK 'focus' signal and forwards it
306 * as the AT-SPI event, 'focus:'
309 focus_tracker (AtkObject * accessible)
311 emit (accessible, ITF_EVENT_FOCUS, "focus", "", 0, 0,
312 DBUS_TYPE_INT32_AS_STRING, 0);
315 /*---------------------------------------------------------------------------*/
317 #define PCHANGE "property-change"
320 * This handler handles the following ATK signals and
321 * converts them to AT-SPI events:
323 * Gtk:AtkObject:property-change -> object:property-change:(property-name)
325 * The property-name is part of the ATK property-change signal.
328 property_event_listener (GSignalInvocationHint * signal_hint,
329 guint n_param_values,
330 const GValue * param_values, gpointer data)
332 AtkObject *accessible;
333 AtkPropertyValues *values;
335 const gchar *pname = NULL;
341 accessible = g_value_get_object (¶m_values[0]);
342 values = (AtkPropertyValues *) g_value_get_pointer (¶m_values[1]);
344 pname = values[0].property_name;
345 if (strcmp (pname, "accessible-name") == 0 ||
346 strcmp (pname, "accessible-description") == 0 ||
347 strcmp (pname, "accessible-role") == 0 ||
348 strcmp (pname, "accessible-parent") == 0)
353 /* TODO Could improve this control statement by matching
354 * on only the end of the signal names,
356 if (strcmp (pname, "accessible-table-summary") == 0)
358 otemp = atk_table_get_summary (ATK_TABLE (accessible));
359 stemp = atk_dbus_object_to_path (otemp, FALSE);
361 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
362 DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
364 else if (strcmp (pname, "accessible-table-column-header") == 0)
366 i = g_value_get_int (&(values->new_value));
367 otemp = atk_table_get_column_header (ATK_TABLE (accessible), i);
368 stemp = atk_dbus_object_to_path (otemp, FALSE);
370 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
371 DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
373 else if (strcmp (pname, "accessible-table-row-header") == 0)
375 i = g_value_get_int (&(values->new_value));
376 otemp = atk_table_get_row_header (ATK_TABLE (accessible), i);
377 stemp = atk_dbus_object_to_path (otemp, FALSE);
379 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
380 DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
382 else if (strcmp (pname, "accessible-table-row-description") == 0)
384 i = g_value_get_int (&(values->new_value));
385 stemp = atk_table_get_row_description (ATK_TABLE (accessible), i);
386 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
387 DBUS_TYPE_STRING_AS_STRING, stemp);
389 else if (strcmp (pname, "accessible-table-column-description") == 0)
391 i = g_value_get_int (&(values->new_value));
392 stemp = atk_table_get_column_description (ATK_TABLE (accessible), i);
393 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
394 DBUS_TYPE_STRING_AS_STRING, stemp);
396 else if (strcmp (pname, "accessible-table-caption-object") == 0)
398 otemp = atk_table_get_caption (ATK_TABLE (accessible));
399 stemp = atk_object_get_name (otemp);
400 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
401 DBUS_TYPE_STRING_AS_STRING, stemp);
405 emit (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
406 DBUS_TYPE_INT32_AS_STRING, 0);
411 /*---------------------------------------------------------------------------*/
413 #define STATE_CHANGED "state-changed"
416 * The state event listener handles 'Gtk:AtkObject:state-change' ATK signals
417 * and forwards them as object:state-changed:(param-name) AT-SPI events. Where
418 * the param-name is part of the ATK state-change signal.
421 state_event_listener (GSignalInvocationHint * signal_hint,
422 guint n_param_values,
423 const GValue * param_values, gpointer data)
425 AtkObject *accessible;
429 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
430 pname = g_strdup (g_value_get_string (¶m_values[1]));
432 /* TODO - Possibly ignore a change to the 'defunct' state.
433 * This is because without reference counting defunct objects should be removed.
435 detail1 = (g_value_get_boolean (¶m_values[2])) ? 1 : 0;
436 emit (accessible, ITF_EVENT_OBJECT, STATE_CHANGED, pname, detail1, 0,
437 DBUS_TYPE_INT32_AS_STRING, 0);
442 /*---------------------------------------------------------------------------*/
445 * The window event listener handles the following ATK signals and forwards
446 * them as AT-SPI events:
448 * window:create -> window:create
449 * window:destroy -> window:destroy
450 * window:minimize -> window:minimize
451 * window:maximize -> window:maximize
452 * window:activate -> window:activate
453 * window:deactivate -> window:deactivate
456 window_event_listener (GSignalInvocationHint * signal_hint,
457 guint n_param_values,
458 const GValue * param_values, gpointer data)
460 AtkObject *accessible;
461 GSignalQuery signal_query;
462 const gchar *name, *s;
464 g_signal_query (signal_hint->signal_id, &signal_query);
465 name = signal_query.signal_name;
467 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
468 s = atk_object_get_name (accessible);
469 emit (accessible, ITF_EVENT_WINDOW, name, "", 0, 0,
470 DBUS_TYPE_STRING_AS_STRING, s);
475 /*---------------------------------------------------------------------------*/
478 * The document event listener handles the following ATK signals
479 * and converts them to AT-SPI events:
481 * Gtk:AtkDocument:load-complete -> document:load-complete
482 * Gtk:AtkDocument:load-stopped -> document:load-stopped
483 * Gtk:AtkDocument:reload -> document:reload
486 document_event_listener (GSignalInvocationHint * signal_hint,
487 guint n_param_values,
488 const GValue * param_values, gpointer data)
490 AtkObject *accessible;
491 GSignalQuery signal_query;
492 const gchar *name, *s;
494 g_signal_query (signal_hint->signal_id, &signal_query);
495 name = signal_query.signal_name;
497 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
498 s = atk_object_get_name (accessible);
499 emit (accessible, ITF_EVENT_DOCUMENT, name, "", 0, 0,
500 DBUS_TYPE_STRING_AS_STRING, s);
505 /*---------------------------------------------------------------------------*/
508 * Signal handler for "Gtk:AtkComponent:bounds-changed". Converts
509 * this to an AT-SPI event - "object:bounds-changed".
512 bounds_event_listener (GSignalInvocationHint * signal_hint,
513 guint n_param_values,
514 const GValue * param_values, gpointer data)
516 AtkObject *accessible;
517 AtkRectangle *atk_rect;
518 GSignalQuery signal_query;
519 const gchar *name, *s;
521 g_signal_query (signal_hint->signal_id, &signal_query);
522 name = signal_query.signal_name;
524 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
526 if (G_VALUE_HOLDS_BOXED (param_values + 1))
527 atk_rect = g_value_get_boxed (param_values + 1);
529 emit_rect (accessible, ITF_EVENT_OBJECT, name, "", atk_rect);
533 /*---------------------------------------------------------------------------*/
536 * Handles the ATK signal 'Gtk:AtkObject:active-descendant-changed' and
537 * converts it to the AT-SPI signal - 'object:active-descendant-changed'.
541 active_descendant_event_listener (GSignalInvocationHint * signal_hint,
542 guint n_param_values,
543 const GValue * param_values, gpointer data)
545 AtkObject *accessible;
547 GSignalQuery signal_query;
548 const gchar *name, *minor;
552 g_signal_query (signal_hint->signal_id, &signal_query);
553 name = signal_query.signal_name;
555 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
556 child = ATK_OBJECT (g_value_get_pointer (¶m_values[1]));
557 g_return_val_if_fail (ATK_IS_OBJECT (child), TRUE);
558 minor = g_quark_to_string (signal_hint->detail);
560 detail1 = atk_object_get_index_in_parent (child);
561 s = atk_dbus_object_to_path (child, FALSE);
568 emit (accessible, ITF_EVENT_OBJECT, name, "", detail1, 0,
569 DBUS_TYPE_OBJECT_PATH_AS_STRING, s);
574 /*---------------------------------------------------------------------------*/
577 * Handles the ATK signal 'Gtk:AtkHypertext:link-selected' and
578 * converts it to the AT-SPI signal - 'object:link-selected'
582 link_selected_event_listener (GSignalInvocationHint * signal_hint,
583 guint n_param_values,
584 const GValue * param_values, gpointer data)
586 AtkObject *accessible;
587 GSignalQuery signal_query;
588 const gchar *name, *minor;
591 g_signal_query (signal_hint->signal_id, &signal_query);
592 name = signal_query.signal_name;
594 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
595 minor = g_quark_to_string (signal_hint->detail);
597 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
598 detail1 = g_value_get_int (¶m_values[1]);
600 emit (accessible, ITF_EVENT_OBJECT, name, minor, detail1, 0,
601 DBUS_TYPE_INT32_AS_STRING, 0);
605 /*---------------------------------------------------------------------------*/
608 * Handles the ATK signal 'Gtk:AtkText:text-changed' and
609 * converts it to the AT-SPI signal - 'object:text-changed'
613 text_changed_event_listener (GSignalInvocationHint * signal_hint,
614 guint n_param_values,
615 const GValue * param_values, gpointer data)
617 AtkObject *accessible;
618 GSignalQuery signal_query;
619 const gchar *name, *minor;
621 gint detail1, detail2;
623 g_signal_query (signal_hint->signal_id, &signal_query);
624 name = signal_query.signal_name;
626 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
627 minor = g_quark_to_string (signal_hint->detail);
629 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
630 detail1 = g_value_get_int (¶m_values[1]);
632 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
633 detail2 = g_value_get_int (¶m_values[2]);
636 atk_text_get_text (ATK_TEXT (accessible), detail1, detail1 + detail2);
638 emit (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
639 DBUS_TYPE_STRING_AS_STRING, selected);
643 /*---------------------------------------------------------------------------*/
646 * Handles the ATK signal 'Gtk:AtkText:text-selection-changed' and
647 * converts it to the AT-SPI signal - 'object:text-selection-changed'
651 text_selection_changed_event_listener (GSignalInvocationHint * signal_hint,
652 guint n_param_values,
653 const GValue * param_values,
656 AtkObject *accessible;
657 GSignalQuery signal_query;
658 const gchar *name, *minor;
659 gint detail1, detail2;
661 g_signal_query (signal_hint->signal_id, &signal_query);
662 name = signal_query.signal_name;
664 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
665 minor = g_quark_to_string (signal_hint->detail);
667 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
668 detail1 = g_value_get_int (¶m_values[1]);
670 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
671 detail2 = g_value_get_int (¶m_values[2]);
673 emit (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
674 DBUS_TYPE_STRING_AS_STRING, "");
678 /*---------------------------------------------------------------------------*/
681 * Generic signal converter and forwarder.
683 * Klass (Interface) org.freedesktop.atspi.Event.Object
684 * Major is the signal name.
691 generic_event_listener (GSignalInvocationHint * signal_hint,
692 guint n_param_values,
693 const GValue * param_values, gpointer data)
695 AtkObject *accessible;
696 GSignalQuery signal_query;
698 int detail1 = 0, detail2 = 0;
700 g_signal_query (signal_hint->signal_id, &signal_query);
701 name = signal_query.signal_name;
703 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
705 if (n_param_values > 1 && G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
706 detail1 = g_value_get_int (¶m_values[1]);
708 if (n_param_values > 2 && G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
709 detail2 = g_value_get_int (¶m_values[2]);
711 emit (accessible, ITF_EVENT_OBJECT, name, "", detail1, detail2,
712 DBUS_TYPE_INT32_AS_STRING, 0);
716 /*---------------------------------------------------------------------------*/
719 * Registers the provided function as a handler for the given signal name
720 * and stores the signal id returned so that the function may be
721 * de-registered later.
724 add_signal_listener (GSignalEmissionHook listener, const char *signal_name)
728 id = atk_add_global_event_listener (listener, signal_name);
729 g_array_append_val (listener_ids, id);
733 * Initialization for the signal handlers.
735 * Registers all required signal handlers.
738 spi_atk_register_event_listeners (void)
741 * Kludge to make sure the Atk interface types are registered, otherwise
742 * the AtkText signal handlers below won't get registered
744 GObject *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
745 AtkObject *bo = atk_no_op_object_new (ao);
747 g_object_unref (G_OBJECT (bo));
750 /* Register for focus event notifications, and register app with central registry */
751 listener_ids = g_array_sized_new (FALSE, TRUE, sizeof (guint), 16);
753 atk_bridge_focus_tracker_id = atk_add_focus_tracker (focus_tracker);
755 add_signal_listener (property_event_listener,
756 "Gtk:AtkObject:property-change");
757 add_signal_listener (window_event_listener, "window:create");
758 add_signal_listener (window_event_listener, "window:destroy");
759 add_signal_listener (window_event_listener, "window:minimize");
760 add_signal_listener (window_event_listener, "window:maximize");
761 add_signal_listener (window_event_listener, "window:restore");
762 add_signal_listener (window_event_listener, "window:activate");
763 add_signal_listener (window_event_listener, "window:deactivate");
764 add_signal_listener (document_event_listener,
765 "Gtk:AtkDocument:load-complete");
766 add_signal_listener (document_event_listener, "Gtk:AtkDocument:reload");
767 add_signal_listener (document_event_listener,
768 "Gtk:AtkDocument:load-stopped");
769 /* TODO Fake this event on the client side */
770 add_signal_listener (state_event_listener, "Gtk:AtkObject:state-change");
772 add_signal_listener (active_descendant_event_listener,
773 "Gtk:AtkObject:active-descendant-changed");
774 add_signal_listener (bounds_event_listener,
775 "Gtk:AtkComponent:bounds-changed");
776 add_signal_listener (text_selection_changed_event_listener,
777 "Gtk:AtkText:text-selection-changed");
778 add_signal_listener (text_changed_event_listener,
779 "Gtk:AtkText:text-changed");
780 add_signal_listener (link_selected_event_listener,
781 "Gtk:AtkHypertext:link-selected");
782 add_signal_listener (generic_event_listener,
783 "Gtk:AtkObject:visible-data-changed");
784 add_signal_listener (generic_event_listener,
785 "Gtk:AtkSelection:selection-changed");
786 add_signal_listener (generic_event_listener,
787 "Gtk:AtkText:text-attributes-changed");
788 add_signal_listener (generic_event_listener,
789 "Gtk:AtkText:text-caret-moved");
790 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-inserted");
791 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-reordered");
792 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-deleted");
793 add_signal_listener (generic_event_listener,
794 "Gtk:AtkTable:column-inserted");
795 add_signal_listener (generic_event_listener,
796 "Gtk:AtkTable:column-reordered");
797 add_signal_listener (generic_event_listener, "Gtk:AtkTable:column-deleted");
798 add_signal_listener (generic_event_listener, "Gtk:AtkTable:model-changed");
801 * May add the following listeners to implement preemptive key listening for GTK+
803 * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-press-event");
804 * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-release-event");
806 atk_bridge_key_event_listener_id =
807 atk_add_key_event_listener (spi_atk_bridge_key_listener, NULL);
810 /*---------------------------------------------------------------------------*/
813 * De-registers all ATK signal handlers.
816 spi_atk_deregister_event_listeners (void)
819 GArray *ids = listener_ids;
822 if (atk_bridge_focus_tracker_id)
823 atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
825 for (i = 0; ids && i < ids->len; i++)
827 atk_remove_global_event_listener (g_array_index (ids, guint, i));
830 if (atk_bridge_key_event_listener_id)
831 atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
834 /*---------------------------------------------------------------------------*/
837 * TODO This function seems out of place here.
839 * Emits fake deactivate signals on all top-level windows.
840 * Used when shutting down AT-SPI, ensuring that all
841 * windows have been removed on the client side.
844 spi_atk_tidy_windows (void)
850 root = atk_get_root ();
851 n_children = atk_object_get_n_accessible_children (root);
852 for (i = 0; i < n_children; i++)
855 AtkStateSet *stateset;
858 child = atk_object_ref_accessible_child (root, i);
859 stateset = atk_object_ref_state_set (child);
861 name = atk_object_get_name (child);
862 if (atk_state_set_contains_state (stateset, ATK_STATE_ACTIVE))
864 emit (child, ITF_EVENT_WINDOW, "deactivate", NULL, 0, 0,
865 DBUS_TYPE_STRING_AS_STRING, name);
867 g_object_unref (stateset);
869 emit (child, ITF_EVENT_WINDOW, "destroy", NULL, 0, 0,
870 DBUS_TYPE_STRING_AS_STRING, name);
871 g_object_unref (child);
875 /*END------------------------------------------------------------------------*/