2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2011, F123 Consulting & Mais Diferenças
6 * Copyright 2008, 2009, Codethink Ltd.
7 * Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
8 * Copyright 2001, 2002, 2003 Ximian, Inc.
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Library General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Library General Public License for more details.
20 * You should have received a copy of the GNU Library General Public
21 * License along with this library; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 02111-1307, USA.
30 #include <droute/droute.h>
31 #include <atspi/atspi.h>
34 #include "accessible-register.h"
40 static GArray *listener_ids = NULL;
42 static gint atk_bridge_key_event_listener_id;
43 static gint atk_bridge_focus_tracker_id;
45 /*---------------------------------------------------------------------------*/
47 #define ITF_EVENT_OBJECT "org.a11y.atspi.Event.Object"
48 #define ITF_EVENT_WINDOW "org.a11y.atspi.Event.Window"
49 #define ITF_EVENT_DOCUMENT "org.a11y.atspi.Event.Document"
50 #define ITF_EVENT_FOCUS "org.a11y.atspi.Event.Focus"
52 /*---------------------------------------------------------------------------*/
54 typedef struct _SpiReentrantCallClosure
60 } SpiReentrantCallClosure;
63 switch_main_context (GMainContext *cnx)
67 if (spi_global_app_data->server)
68 atspi_dbus_server_setup_with_g_main (spi_global_app_data->server, cnx);
69 atspi_dbus_connection_setup_with_g_main (spi_global_app_data->bus, cnx);
70 atspi_set_main_context (cnx);
71 for (list = spi_global_app_data->direct_connections; list; list = list->next)
72 atspi_dbus_connection_setup_with_g_main (list->data, cnx);
76 set_reply (DBusPendingCall * pending, void *user_data)
78 SpiReentrantCallClosure* closure = (SpiReentrantCallClosure *) user_data;
80 closure->reply = dbus_pending_call_steal_reply (pending);
81 dbus_pending_call_unref (pending);
82 switch_main_context (NULL);
83 g_main_loop_quit (closure->loop);
87 timeout_reply (void *data)
89 SpiReentrantCallClosure *closure = data;
91 switch_main_context (NULL);
92 g_main_loop_quit (closure->loop);
93 closure->timeout = -1;
98 send_and_allow_reentry (DBusConnection * bus, DBusMessage * message)
100 DBusPendingCall *pending;
101 SpiReentrantCallClosure closure;
105 closure.loop = g_main_loop_new (spi_global_app_data->main_context, FALSE);
106 closure.reply = NULL;
107 switch_main_context (spi_global_app_data->main_context);
109 if (!dbus_connection_send_with_reply (bus, message, &pending, 9000) || !pending)
111 switch_main_context (NULL);
114 dbus_pending_call_set_notify (pending, set_reply, (void *) &closure, NULL);
115 source = g_timeout_source_new (500);
116 g_source_set_callback (source, timeout_reply, &closure, NULL);
117 closure.timeout = g_source_attach (source, spi_global_app_data->main_context);
118 g_source_unref (source);
119 g_main_loop_run (closure.loop);
120 if (closure.timeout != -1)
121 g_source_destroy (source);
123 g_main_loop_unref (closure.loop);
125 dbus_pending_call_cancel (pending);
126 return closure.reply;
129 /*---------------------------------------------------------------------------*/
132 * Functionality related to sending device events from the application.
134 * This is used for forwarding key events on to the registry daemon.
138 Accessibility_DeviceEventController_NotifyListenersSync (const
142 DBusMessage *message;
143 dbus_bool_t consumed = FALSE;
146 dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
148 ATSPI_DBUS_INTERFACE_DEC,
149 "NotifyListenersSync");
151 if (spi_dbus_marshal_deviceEvent (message, key_event))
154 send_and_allow_reentry (spi_global_app_data->bus, message);
158 dbus_error_init (&error);
159 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_BOOLEAN,
160 &consumed, DBUS_TYPE_INVALID))
162 /* TODO: print a warning */
163 dbus_error_free (&error);
165 dbus_message_unref (reply);
168 dbus_message_unref (message);
173 spi_init_keystroke_from_atk_key_event (AtspiDeviceEvent * keystroke,
174 AtkKeyEventStruct * event)
176 keystroke->id = (dbus_int32_t) event->keyval;
177 keystroke->hw_code = (dbus_int16_t) event->keycode;
178 keystroke->timestamp = (dbus_uint32_t) event->timestamp;
179 keystroke->modifiers = (dbus_uint16_t) (event->state & 0xFFFF);
184 keystroke->event_string = g_strdup (event->string);
185 c = g_utf8_get_char_validated (event->string, -1);
186 if (c > 0 && g_unichar_isprint (c))
187 keystroke->is_text = TRUE;
189 keystroke->is_text = FALSE;
193 keystroke->event_string = g_strdup ("");
194 keystroke->is_text = FALSE;
198 case (ATK_KEY_EVENT_PRESS):
199 keystroke->type = ATSPI_KEY_PRESSED;
201 case (ATK_KEY_EVENT_RELEASE):
202 keystroke->type = ATSPI_KEY_RELEASED;
210 ("key_event type %d; val=%d code=%d modifiers=%x name=%s is_text=%d, time=%lx\n",
211 (int) keystroke->type, (int) keystroke->id, (int) keystroke->hw_code,
212 (int) keystroke->modifiers, keystroke->event_string,
213 (int) keystroke->is_text, (unsigned long) keystroke->timestamp);
219 spi_atk_bridge_key_listener (AtkKeyEventStruct * event, gpointer data)
222 AtspiDeviceEvent key_event;
224 spi_init_keystroke_from_atk_key_event (&key_event, event);
227 Accessibility_DeviceEventController_NotifyListenersSync (&key_event);
229 if (key_event.event_string)
230 g_free (key_event.event_string);
235 /*---------------------------------------------------------------------------*/
238 validate_for_dbus (const gint type,
243 case DBUS_TYPE_STRING:
244 case DBUS_TYPE_OBJECT_PATH:
247 else if (!g_utf8_validate (val, -1, NULL))
249 g_warning ("atk-bridge: Received bad UTF-8 string when emitting event");
260 append_basic (DBusMessageIter *iter,
266 dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, type, &sub);
268 val = validate_for_dbus ((int) *type, val);
269 dbus_message_iter_append_basic(&sub, (int) *type, &val);
271 dbus_message_iter_close_container(iter, &sub);
275 append_rect (DBusMessageIter *iter,
279 DBusMessageIter variant, sub;
280 const AtkRectangle *rect = (const AtkRectangle *) val;
282 dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, type, &variant);
284 dbus_message_iter_open_container (&variant, DBUS_TYPE_STRUCT, NULL, &sub);
286 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->x));
287 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->y));
288 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->width));
289 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->height));
291 dbus_message_iter_close_container (&variant, &sub);
293 dbus_message_iter_close_container(iter, &variant);
297 append_object (DBusMessageIter *iter,
301 spi_object_append_v_reference (iter, ATK_OBJECT (val));
305 signal_name_to_dbus (const gchar *s)
307 gchar *ret = g_strdup (s);
312 ret [0] = toupper (ret [0]);
313 while ((t = strchr (ret, '-')) != NULL)
315 memmove (t, t + 1, strlen (t));
322 * Converts names of the form "active-descendant-changed" to
323 * "ActiveDescendantChanged"
326 ensure_proper_format (const char *name)
328 gchar *ret = (gchar *) g_malloc (strlen (name) * 2 + 2);
330 gboolean need_upper = TRUE;
338 *p++ = toupper (*name);
341 else if (*name == '-')
343 else if (*name == ':')
357 append_properties (GArray *properties, event_data *evdata)
362 for (ls = evdata->properties; ls; ls = ls->next)
364 gboolean dup = FALSE;
365 for (i = 0; i < properties->len; i++)
367 if (ls->data == g_array_index (properties, AtspiPropertyDefinition *, i))
374 g_array_append_val (properties, ls->data);
379 signal_is_needed (const gchar *klass, const gchar *major, const gchar *minor,
384 gboolean ret = FALSE;
386 GArray *props = NULL;
388 if (!spi_global_app_data->events_initialized)
391 data [0] = ensure_proper_format (klass + 21);
392 data [1] = ensure_proper_format (major);
393 data [2] = ensure_proper_format (minor);
396 /* Hack: Always pass events that update the cache.
397 * TODO: FOr 2.2, have at-spi2-core define a special "cache listener" for
398 * this instead, so that we don't send these if no one is listening */
399 if (!g_strcmp0 (data [1], "ChildrenChanged") ||
400 ((!g_strcmp0 (data [1], "PropertyChange")) &&
401 (!g_strcmp0 (data [2], "accessible-name") ||
402 !g_strcmp0 (data [2], "accessible-description") ||
403 !g_strcmp0 (data [2], "accessible-parent") ||
404 !g_strcmp0 (data [2], "accessible-role"))) ||
405 !g_strcmp0 (data [1], "StateChanged"))
408 /* Hack: events such as "object::text-changed::insert:system" as
409 generated by Gecko */
410 data [2][strcspn (data [2], ":")] = '\0';
412 for (list = spi_global_app_data->events; list; list = list->next)
415 if (spi_event_is_subtype (data, evdata->data))
419 props = g_array_new (TRUE, TRUE, sizeof (AtspiPropertyDefinition *));
420 append_properties (props, evdata);
431 /* Convert a : to a / so that listeners can use arg0path to match only
434 adapt_minor_for_dbus (const char *source)
436 gchar *ret = g_strdup (source);
437 int i = strcspn (ret, ":");
444 open_variant (DBusMessageIter *iter, const char *name, const char *type,
445 DBusMessageIter *out)
447 dbus_message_iter_append_basic (iter, DBUS_TYPE_STRING, &name);
448 dbus_message_iter_open_container (iter, DBUS_TYPE_VARIANT, type, out);
452 * Emits an AT-SPI event.
453 * AT-SPI events names are split into three parts:
455 * This is mapped onto D-Bus events as:
456 * D-Bus Interface:Signal Name:Detail argument
458 * Marshals a basic type into the 'any_data' attribute of
462 emit_event (AtkObject *obj,
466 dbus_int32_t detail1,
467 dbus_int32_t detail2,
470 void (*append_variant) (DBusMessageIter *, const char *, const void *))
472 DBusConnection *bus = spi_global_app_data->bus;
478 DBusMessageIter iter, iter_dict, iter_dict_entry, iter_variant, iter_array;
479 GArray *properties = NULL;
481 if (!klass) klass = "";
482 if (!major) major = "";
483 if (!minor) minor = "";
484 if (!type) type = "u";
486 if (!signal_is_needed (klass, major, minor, &properties))
489 path = spi_register_object_to_path (spi_global_register, G_OBJECT (obj));
490 g_return_if_fail (path != NULL);
493 * This is very annoying, but as '-' isn't a legal signal
494 * name in D-Bus (Why not??!?) The names need converting
495 * on this side, and again on the client side.
497 cname = signal_name_to_dbus (major);
498 sig = dbus_message_new_signal(path, klass, cname);
500 dbus_message_iter_init_append(sig, &iter);
502 minor_dbus = adapt_minor_for_dbus (minor);
503 dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &minor_dbus);
505 dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail1);
506 dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail2);
507 append_variant (&iter, type, val);
509 dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, "{sv}", &iter_dict);
510 /* Add requested properties, unless the object is being marked defunct, in
511 which case it's safest not to touch it */
512 if (minor == NULL || strcmp (minor, "defunct") != 0 || detail1 == 0)
517 for (i = 0; i < properties->len; i++)
519 AtspiPropertyDefinition *prop = g_array_index (properties, AtspiPropertyDefinition *, i);
520 dbus_message_iter_open_container (&iter_dict, DBUS_TYPE_DICT_ENTRY, NULL,
522 dbus_message_iter_append_basic (&iter_dict_entry, DBUS_TYPE_STRING, &prop->name);
523 prop->func (&iter_dict_entry, obj);
524 dbus_message_iter_close_container (&iter_dict, &iter_dict_entry);
526 g_array_free (properties, TRUE);
529 dbus_message_iter_close_container (&iter, &iter_dict);
531 dbus_connection_send(bus, sig, NULL);
532 dbus_message_unref(sig);
534 if (g_strcmp0 (cname, "ChildrenChanged") != 0)
535 spi_object_lease_if_needed (G_OBJECT (obj));
541 /*---------------------------------------------------------------------------*/
544 * The focus listener handles the ATK 'focus' signal and forwards it
545 * as the AT-SPI event, 'focus:'
548 focus_tracker (AtkObject * accessible)
550 emit_event (accessible, ITF_EVENT_FOCUS, "focus", "", 0, 0,
551 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
554 /*---------------------------------------------------------------------------*/
556 #define PCHANGE "PropertyChange"
559 * This handler handles the following ATK signals and
560 * converts them to AT-SPI events:
562 * Gtk:AtkObject:property-change -> object:property-change:(property-name)
564 * The property-name is part of the ATK property-change signal.
567 property_event_listener (GSignalInvocationHint * signal_hint,
568 guint n_param_values,
569 const GValue * param_values, gpointer data)
571 AtkObject *accessible;
572 AtkPropertyValues *values;
574 const gchar *pname = NULL;
580 accessible = g_value_get_object (¶m_values[0]);
581 values = (AtkPropertyValues *) g_value_get_pointer (¶m_values[1]);
583 pname = values[0].property_name;
585 /* TODO Could improve this control statement by matching
586 * on only the end of the signal names,
588 if (strcmp (pname, "accessible-name") == 0)
590 s1 = atk_object_get_name (accessible);
592 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
593 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
595 else if (strcmp (pname, "accessible-description") == 0)
597 s1 = atk_object_get_description (accessible);
599 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
600 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
602 else if (strcmp (pname, "accessible-parent") == 0)
604 otemp = atk_object_get_parent (accessible);
606 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
607 "(so)", otemp, append_object);
609 else if (strcmp (pname, "accessible-role") == 0)
611 i = atk_object_get_role (accessible);
612 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
613 DBUS_TYPE_UINT32_AS_STRING, GINT_TO_POINTER(i), append_basic);
615 else if (strcmp (pname, "accessible-table-summary") == 0)
617 otemp = atk_table_get_summary (ATK_TABLE (accessible));
619 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
620 "(so)", otemp, append_object);
622 else if (strcmp (pname, "accessible-table-column-header") == 0)
624 i = g_value_get_int (&(values->new_value));
625 otemp = atk_table_get_column_header (ATK_TABLE (accessible), i);
627 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
628 "(so)", otemp, append_object);
630 else if (strcmp (pname, "accessible-table-row-header") == 0)
632 i = g_value_get_int (&(values->new_value));
633 otemp = atk_table_get_row_header (ATK_TABLE (accessible), i);
635 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
636 "(so)", otemp, append_object);
638 else if (strcmp (pname, "accessible-table-row-description") == 0)
640 i = g_value_get_int (&(values->new_value));
641 s1 = atk_table_get_row_description (ATK_TABLE (accessible), i);
642 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
643 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
645 else if (strcmp (pname, "accessible-table-column-description") == 0)
647 i = g_value_get_int (&(values->new_value));
648 s1 = atk_table_get_column_description (ATK_TABLE (accessible), i);
649 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
650 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
652 else if (strcmp (pname, "accessible-table-caption-object") == 0)
654 otemp = atk_table_get_caption (ATK_TABLE (accessible));
655 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
656 "(so)", otemp, append_object);
660 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
661 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
666 /*---------------------------------------------------------------------------*/
668 #define STATE_CHANGED "state-changed"
671 * The state event listener handles 'Gtk:AtkObject:state-change' ATK signals
672 * and forwards them as object:state-changed:(param-name) AT-SPI events. Where
673 * the param-name is part of the ATK state-change signal.
676 state_event_listener (GSignalInvocationHint * signal_hint,
677 guint n_param_values,
678 const GValue * param_values, gpointer data)
680 AtkObject *accessible;
684 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
685 pname = g_value_get_string (¶m_values[1]);
687 detail1 = (g_value_get_boolean (¶m_values[2])) ? 1 : 0;
688 emit_event (accessible, ITF_EVENT_OBJECT, STATE_CHANGED, pname, detail1, 0,
689 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
691 if (!g_strcmp0 (pname, "defunct") && detail1)
692 spi_register_deregister_object (spi_global_register, G_OBJECT (accessible),
697 /*---------------------------------------------------------------------------*/
700 * The window event listener handles the following ATK signals and forwards
701 * them as AT-SPI events:
703 * window:create -> window:create
704 * window:destroy -> window:destroy
705 * window:minimize -> window:minimize
706 * window:maximize -> window:maximize
707 * window:activate -> window:activate
708 * window:deactivate -> window:deactivate
711 window_event_listener (GSignalInvocationHint * signal_hint,
712 guint n_param_values,
713 const GValue * param_values, gpointer data)
715 AtkObject *accessible;
716 GSignalQuery signal_query;
717 const gchar *name, *s;
719 g_signal_query (signal_hint->signal_id, &signal_query);
720 name = signal_query.signal_name;
722 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
723 s = atk_object_get_name (accessible);
724 emit_event (accessible, ITF_EVENT_WINDOW, name, "", 0, 0,
725 DBUS_TYPE_STRING_AS_STRING, s, append_basic);
730 /*---------------------------------------------------------------------------*/
733 * The document event listener handles the following ATK signals
734 * and converts them to AT-SPI events:
736 * Gtk:AtkDocument:load-complete -> document:load-complete
737 * Gtk:AtkDocument:load-stopped -> document:load-stopped
738 * Gtk:AtkDocument:reload -> document:reload
739 * Gtk:AtkDocument:page-changed -> document:page-changed
742 document_event_listener (GSignalInvocationHint * signal_hint,
743 guint n_param_values,
744 const GValue * param_values, gpointer data)
746 AtkObject *accessible;
747 GSignalQuery signal_query;
748 const gchar *name, *s;
751 g_signal_query (signal_hint->signal_id, &signal_query);
752 name = signal_query.signal_name;
754 if (n_param_values > 0) // on the case of page-changed
755 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
756 detail1 = g_value_get_int (¶m_values[1]);
758 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
759 s = atk_object_get_name (accessible);
760 emit_event (accessible, ITF_EVENT_DOCUMENT, name, "", detail1, 0,
761 DBUS_TYPE_STRING_AS_STRING, s, append_basic);
766 /*---------------------------------------------------------------------------*/
769 * Signal handler for "Gtk:AtkComponent:bounds-changed". Converts
770 * this to an AT-SPI event - "object:bounds-changed".
773 bounds_event_listener (GSignalInvocationHint * signal_hint,
774 guint n_param_values,
775 const GValue * param_values, gpointer data)
777 AtkObject *accessible;
778 AtkRectangle *atk_rect;
779 GSignalQuery signal_query;
782 g_signal_query (signal_hint->signal_id, &signal_query);
783 name = signal_query.signal_name;
785 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
787 if (G_VALUE_HOLDS_BOXED (param_values + 1))
789 atk_rect = g_value_get_boxed (param_values + 1);
791 emit_event (accessible, ITF_EVENT_OBJECT, name, "", 0, 0,
792 "(iiii)", atk_rect, append_rect);
797 /*---------------------------------------------------------------------------*/
800 * Handles the ATK signal 'Gtk:AtkObject:active-descendant-changed' and
801 * converts it to the AT-SPI signal - 'object:active-descendant-changed'.
805 active_descendant_event_listener (GSignalInvocationHint * signal_hint,
806 guint n_param_values,
807 const GValue * param_values, gpointer data)
809 AtkObject *accessible;
811 GSignalQuery signal_query;
815 g_signal_query (signal_hint->signal_id, &signal_query);
816 name = signal_query.signal_name;
818 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
819 child = ATK_OBJECT (g_value_get_pointer (¶m_values[1]));
820 g_return_val_if_fail (ATK_IS_OBJECT (child), TRUE);
822 detail1 = atk_object_get_index_in_parent (child);
824 emit_event (accessible, ITF_EVENT_OBJECT, name, "", detail1, 0,
825 "(so)", child, append_object);
829 /*---------------------------------------------------------------------------*/
832 * Handles the ATK signal 'Gtk:AtkHypertext:link-selected' and
833 * converts it to the AT-SPI signal - 'object:link-selected'
837 link_selected_event_listener (GSignalInvocationHint * signal_hint,
838 guint n_param_values,
839 const GValue * param_values, gpointer data)
841 AtkObject *accessible;
842 GSignalQuery signal_query;
843 const gchar *name, *minor;
846 g_signal_query (signal_hint->signal_id, &signal_query);
847 name = signal_query.signal_name;
849 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
850 minor = g_quark_to_string (signal_hint->detail);
852 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
853 detail1 = g_value_get_int (¶m_values[1]);
855 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, 0,
856 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
860 /*---------------------------------------------------------------------------*/
863 * Handles the ATK signal 'Gtk:AtkText:text-changed' and
864 * converts it to the AT-SPI signal - 'object:text-changed'
865 * This signal is deprecated by Gtk:AtkText:text-insert
866 * and Gtk:AtkText:text-remove
870 text_changed_event_listener (GSignalInvocationHint * signal_hint,
871 guint n_param_values,
872 const GValue * param_values, gpointer data)
874 AtkObject *accessible;
875 GSignalQuery signal_query;
876 const gchar *name, *minor;
878 gint detail1 = 0, detail2 = 0;
880 g_signal_query (signal_hint->signal_id, &signal_query);
881 name = signal_query.signal_name;
883 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
884 minor = g_quark_to_string (signal_hint->detail);
886 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
887 detail1 = g_value_get_int (¶m_values[1]);
889 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
890 detail2 = g_value_get_int (¶m_values[2]);
893 atk_text_get_text (ATK_TEXT (accessible), detail1, detail1 + detail2);
895 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
896 DBUS_TYPE_STRING_AS_STRING, selected, append_basic);
903 * Handles the ATK signal 'Gtk:AtkText:text-insert' and
904 * converts it to the AT-SPI signal - 'object:text-changed'
908 text_insert_event_listener (GSignalInvocationHint * signal_hint,
909 guint n_param_values,
910 const GValue * param_values, gpointer data)
912 AtkObject *accessible;
913 guint text_changed_signal_id;
914 GSignalQuery signal_query;
916 const gchar *minor_raw, *text;
918 gint detail1 = 0, detail2 = 0;
920 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
921 /* Get signal name for 'Gtk:AtkText:text-changed' so
922 * we convert it to the AT-SPI signal - 'object:text-changed'
924 text_changed_signal_id = g_signal_lookup ("text-changed", G_OBJECT_TYPE (accessible));
925 g_signal_query (text_changed_signal_id, &signal_query);
926 name = signal_query.signal_name;
929 /* Add the insert and keep any detail coming from atk */
930 minor_raw = g_quark_to_string (signal_hint->detail);
932 minor = g_strconcat ("insert:", minor_raw, NULL);
934 minor = g_strdup ("insert");
936 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
937 detail1 = g_value_get_int (¶m_values[1]);
939 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
940 detail2 = g_value_get_int (¶m_values[2]);
942 if (G_VALUE_TYPE (¶m_values[3]) == G_TYPE_STRING)
943 text = g_value_get_string (¶m_values[3]);
945 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
946 DBUS_TYPE_STRING_AS_STRING, text, append_basic);
952 * Handles the ATK signal 'Gtk:AtkText:text-remove' and
953 * converts it to the AT-SPI signal - 'object:text-changed'
957 text_remove_event_listener (GSignalInvocationHint * signal_hint,
958 guint n_param_values,
959 const GValue * param_values, gpointer data)
961 AtkObject *accessible;
962 guint text_changed_signal_id;
963 GSignalQuery signal_query;
965 const gchar *minor_raw, *text;
967 gint detail1 = 0, detail2 = 0;
969 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
970 /* Get signal name for 'Gtk:AtkText:text-changed' so
971 * we convert it to the AT-SPI signal - 'object:text-changed'
973 text_changed_signal_id = g_signal_lookup ("text-changed", G_OBJECT_TYPE (accessible));
974 g_signal_query (text_changed_signal_id, &signal_query);
975 name = signal_query.signal_name;
977 minor_raw = g_quark_to_string (signal_hint->detail);
979 /* Add the delete and keep any detail coming from atk */
981 minor = g_strconcat ("delete:", minor_raw, NULL);
983 minor = g_strdup ("delete");
985 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
986 detail1 = g_value_get_int (¶m_values[1]);
988 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
989 detail2 = g_value_get_int (¶m_values[2]);
991 if (G_VALUE_TYPE (¶m_values[3]) == G_TYPE_STRING)
992 text = g_value_get_string (¶m_values[3]);
994 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
995 DBUS_TYPE_STRING_AS_STRING, text, append_basic);
1001 /*---------------------------------------------------------------------------*/
1004 * Handles the ATK signal 'Gtk:AtkText:text-selection-changed' and
1005 * converts it to the AT-SPI signal - 'object:text-selection-changed'
1009 text_selection_changed_event_listener (GSignalInvocationHint * signal_hint,
1010 guint n_param_values,
1011 const GValue * param_values,
1014 AtkObject *accessible;
1015 GSignalQuery signal_query;
1016 const gchar *name, *minor;
1017 gint detail1 = 0, detail2 = 0;
1019 g_signal_query (signal_hint->signal_id, &signal_query);
1020 name = signal_query.signal_name;
1022 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
1023 minor = g_quark_to_string (signal_hint->detail);
1025 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
1026 detail1 = g_value_get_int (¶m_values[1]);
1028 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
1029 detail2 = g_value_get_int (¶m_values[2]);
1031 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1032 DBUS_TYPE_STRING_AS_STRING, "", append_basic);
1036 /*---------------------------------------------------------------------------*/
1039 * Children changed signal converter and forwarder.
1041 * Klass (Interface) org.a11y.atspi.Event.Object
1042 * Major is the signal name.
1043 * Minor is 'add' or 'remove'
1044 * detail1 is the index.
1046 * any_data is the child reference.
1049 children_changed_event_listener (GSignalInvocationHint * signal_hint,
1050 guint n_param_values,
1051 const GValue * param_values, gpointer data)
1053 GSignalQuery signal_query;
1054 const gchar *name, *minor;
1055 gint detail1 = 0, detail2 = 0;
1057 AtkObject *accessible, *ao=NULL;
1060 g_signal_query (signal_hint->signal_id, &signal_query);
1061 name = signal_query.signal_name;
1063 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
1064 minor = g_quark_to_string (signal_hint->detail);
1066 detail1 = g_value_get_uint (param_values + 1);
1067 child = g_value_get_pointer (param_values + 2);
1069 if (ATK_IS_OBJECT (child))
1071 ao = ATK_OBJECT (child);
1072 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1073 "(so)", ao, append_object);
1075 else if ((minor != NULL) && (strcmp (minor, "add") == 0))
1077 ao = atk_object_ref_accessible_child (accessible,
1079 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1080 "(so)", ao, append_object);
1081 g_object_unref (ao);
1085 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1086 "(so)", ao, append_object);
1092 /*---------------------------------------------------------------------------*/
1095 * Generic signal converter and forwarder.
1097 * Klass (Interface) org.a11y.atspi.Event.Object
1098 * Major is the signal name.
1105 generic_event_listener (GSignalInvocationHint * signal_hint,
1106 guint n_param_values,
1107 const GValue * param_values, gpointer data)
1109 AtkObject *accessible;
1110 GSignalQuery signal_query;
1112 int detail1 = 0, detail2 = 0;
1114 g_signal_query (signal_hint->signal_id, &signal_query);
1115 name = signal_query.signal_name;
1117 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
1119 if (n_param_values > 1 && G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
1120 detail1 = g_value_get_int (¶m_values[1]);
1122 if (n_param_values > 2 && G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
1123 detail2 = g_value_get_int (¶m_values[2]);
1125 emit_event (accessible, ITF_EVENT_OBJECT, name, "", detail1, detail2,
1126 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
1130 /*---------------------------------------------------------------------------*/
1133 * Registers the provided function as a handler for the given signal name
1134 * and stores the signal id returned so that the function may be
1135 * de-registered later.
1138 add_signal_listener (GSignalEmissionHook listener, const char *signal_name)
1142 id = atk_add_global_event_listener (listener, signal_name);
1144 if (id > 0) /* id == 0 is a failure */
1145 g_array_append_val (listener_ids, id);
1151 * Initialization for the signal handlers.
1153 * Registers all required signal handlers.
1156 spi_atk_register_event_listeners (void)
1159 * Kludge to make sure the Atk interface types are registered, otherwise
1160 * the AtkText signal handlers below won't get registered
1162 GObject *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
1163 AtkObject *bo = atk_no_op_object_new (ao);
1166 g_object_unref (G_OBJECT (bo));
1167 g_object_unref (ao);
1171 g_warning ("atk_bridge: spi_atk-register_event_listeners called multiple times");
1175 /* Register for focus event notifications, and register app with central registry */
1176 listener_ids = g_array_sized_new (FALSE, TRUE, sizeof (guint), 16);
1178 atk_bridge_focus_tracker_id = atk_add_focus_tracker (focus_tracker);
1180 add_signal_listener (property_event_listener,
1181 "Gtk:AtkObject:property-change");
1183 /* window events: we tentative try to register using the old format */
1184 id = add_signal_listener (window_event_listener, "window:create");
1188 /* If we are able to register using the old format, we assume
1189 * that the ATK implementor is managing window events without
1190 * AtkWindow. We can't use the opposite test because after
1191 * including AtkWindow on ATK you would be able to register to
1192 * that event, although the ATK implementor could or not use it.
1195 add_signal_listener (window_event_listener, "window:destroy");
1196 add_signal_listener (window_event_listener, "window:minimize");
1197 add_signal_listener (window_event_listener, "window:maximize");
1198 add_signal_listener (window_event_listener, "window:restore");
1199 add_signal_listener (window_event_listener, "window:activate");
1200 add_signal_listener (window_event_listener, "window:deactivate");
1204 add_signal_listener (window_event_listener, "Atk:AtkWindow:create");
1205 add_signal_listener (window_event_listener, "Atk:AtkWindow:destroy");
1206 add_signal_listener (window_event_listener, "Atk:AtkWindow:minimize");
1207 add_signal_listener (window_event_listener, "Atk:AtkWindow:maximize");
1208 add_signal_listener (window_event_listener, "Atk:AtkWindow:restore");
1209 add_signal_listener (window_event_listener, "Atk:AtkWindow:activate");
1210 add_signal_listener (window_event_listener, "Atk:AtkWindow:deactivate");
1213 add_signal_listener (document_event_listener,
1214 "Gtk:AtkDocument:load-complete");
1215 add_signal_listener (document_event_listener, "Gtk:AtkDocument:reload");
1216 add_signal_listener (document_event_listener,
1217 "Gtk:AtkDocument:load-stopped");
1218 add_signal_listener (document_event_listener,
1219 "Gtk:AtkDocument:page-changed");
1220 /* TODO Fake this event on the client side */
1221 add_signal_listener (state_event_listener, "Gtk:AtkObject:state-change");
1223 add_signal_listener (active_descendant_event_listener,
1224 "Gtk:AtkObject:active-descendant-changed");
1225 add_signal_listener (bounds_event_listener,
1226 "Gtk:AtkComponent:bounds-changed");
1227 add_signal_listener (text_selection_changed_event_listener,
1228 "Gtk:AtkText:text-selection-changed");
1229 add_signal_listener (text_changed_event_listener,
1230 "Gtk:AtkText:text-changed");
1231 add_signal_listener (text_insert_event_listener,
1232 "Gtk:AtkText:text-insert");
1233 add_signal_listener (text_remove_event_listener,
1234 "Gtk:AtkText:text-remove");
1235 add_signal_listener (link_selected_event_listener,
1236 "Gtk:AtkHypertext:link-selected");
1237 add_signal_listener (generic_event_listener,
1238 "Gtk:AtkObject:visible-data-changed");
1239 add_signal_listener (generic_event_listener,
1240 "Gtk:AtkSelection:selection-changed");
1241 add_signal_listener (generic_event_listener,
1242 "Gtk:AtkText:text-attributes-changed");
1243 add_signal_listener (generic_event_listener,
1244 "Gtk:AtkText:text-caret-moved");
1245 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-inserted");
1246 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-reordered");
1247 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-deleted");
1248 add_signal_listener (generic_event_listener,
1249 "Gtk:AtkTable:column-inserted");
1250 add_signal_listener (generic_event_listener,
1251 "Gtk:AtkTable:column-reordered");
1252 add_signal_listener (generic_event_listener, "Gtk:AtkTable:column-deleted");
1253 add_signal_listener (generic_event_listener, "Gtk:AtkTable:model-changed");
1254 add_signal_listener (children_changed_event_listener, "Gtk:AtkObject:children-changed");
1257 g_signal_connect (G_OBJECT (spi_global_app_data->root),
1258 "children-changed::add",
1259 (GCallback) toplevel_added_event_listener, NULL);
1261 g_signal_connect (G_OBJECT (spi_global_app_data->root),
1262 "children-changed::remove",
1263 (GCallback) toplevel_removed_event_listener, NULL);
1267 * May add the following listeners to implement preemptive key listening for GTK+
1269 * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-press-event");
1270 * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-release-event");
1272 atk_bridge_key_event_listener_id =
1273 atk_add_key_event_listener (spi_atk_bridge_key_listener, NULL);
1276 /*---------------------------------------------------------------------------*/
1279 * De-registers all ATK signal handlers.
1282 spi_atk_deregister_event_listeners (void)
1285 GArray *ids = listener_ids;
1286 listener_ids = NULL;
1288 if (atk_bridge_focus_tracker_id)
1290 atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
1291 atk_bridge_focus_tracker_id = 0;
1296 for (i = 0; i < ids->len; i++)
1298 atk_remove_global_event_listener (g_array_index (ids, guint, i));
1300 g_array_free (ids, TRUE);
1303 if (atk_bridge_key_event_listener_id)
1305 atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
1306 atk_bridge_key_event_listener_id = 0;
1310 /*---------------------------------------------------------------------------*/
1313 * TODO This function seems out of place here.
1315 * Emits fake deactivate signals on all top-level windows.
1316 * Used when shutting down AT-SPI, ensuring that all
1317 * windows have been removed on the client side.
1320 spi_atk_tidy_windows (void)
1326 root = atk_get_root ();
1327 n_children = atk_object_get_n_accessible_children (root);
1328 for (i = 0; i < n_children; i++)
1331 AtkStateSet *stateset;
1334 child = atk_object_ref_accessible_child (root, i);
1335 stateset = atk_object_ref_state_set (child);
1337 name = atk_object_get_name (child);
1338 if (atk_state_set_contains_state (stateset, ATK_STATE_ACTIVE))
1340 emit_event (child, ITF_EVENT_WINDOW, "deactivate", NULL, 0, 0,
1341 DBUS_TYPE_STRING_AS_STRING, name, append_basic);
1343 g_object_unref (stateset);
1345 emit_event (child, ITF_EVENT_WINDOW, "destroy", NULL, 0, 0,
1346 DBUS_TYPE_STRING_AS_STRING, name, append_basic);
1347 g_object_unref (child);
1352 spi_event_is_subtype (gchar **needle, gchar **haystack)
1354 while (*haystack && **haystack)
1356 if (g_strcmp0 (*needle, *haystack))
1364 /*END------------------------------------------------------------------------*/