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)
68 atspi_dbus_server_setup_with_g_main (spi_global_app_data->server, cnx);
70 atspi_dbus_connection_setup_with_g_main (spi_global_app_data->bus, 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 if (!dbus_connection_get_is_connected (closure->bus))
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;
102 GMainContext *main_context;
105 main_context = (g_getenv ("AT_SPI_CLIENT") ? NULL :
106 spi_global_app_data->main_context);
108 closure.loop = g_main_loop_new (main_context, FALSE);
109 closure.reply = NULL;
110 switch_main_context (main_context);
112 if (!dbus_connection_send_with_reply (bus, message, &pending, 9000) || !pending)
114 switch_main_context (NULL);
117 dbus_pending_call_set_notify (pending, set_reply, (void *) &closure, NULL);
118 source = g_timeout_source_new (500);
119 g_source_set_callback (source, timeout_reply, &closure, NULL);
120 closure.timeout = g_source_attach (source, main_context);
121 g_source_unref (source);
122 g_main_loop_run (closure.loop);
123 if (closure.timeout != -1)
124 g_source_destroy (source);
126 g_main_loop_unref (closure.loop);
127 return closure.reply;
130 /*---------------------------------------------------------------------------*/
133 * Functionality related to sending device events from the application.
135 * This is used for forwarding key events on to the registry daemon.
139 Accessibility_DeviceEventController_NotifyListenersSync (const
143 DBusMessage *message;
145 dbus_bool_t consumed = FALSE;
148 dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
150 ATSPI_DBUS_INTERFACE_DEC,
151 "NotifyListenersSync");
153 dbus_error_init (&error);
154 if (spi_dbus_marshal_deviceEvent (message, key_event))
157 send_and_allow_reentry (spi_global_app_data->bus, message);
161 dbus_error_init (&error);
162 dbus_message_get_args (reply, &error, DBUS_TYPE_BOOLEAN, &consumed,
164 dbus_message_unref (reply);
167 dbus_message_unref (message);
172 spi_init_keystroke_from_atk_key_event (AtspiDeviceEvent * keystroke,
173 AtkKeyEventStruct * event)
175 keystroke->id = (dbus_int32_t) event->keyval;
176 keystroke->hw_code = (dbus_int16_t) event->keycode;
177 keystroke->timestamp = (dbus_uint32_t) event->timestamp;
178 keystroke->modifiers = (dbus_uint16_t) (event->state & 0xFFFF);
183 keystroke->event_string = g_strdup (event->string);
184 c = g_utf8_get_char_validated (event->string, -1);
185 if (c > 0 && g_unichar_isprint (c))
186 keystroke->is_text = TRUE;
188 keystroke->is_text = FALSE;
192 keystroke->event_string = g_strdup ("");
193 keystroke->is_text = FALSE;
197 case (ATK_KEY_EVENT_PRESS):
198 keystroke->type = ATSPI_KEY_PRESSED;
200 case (ATK_KEY_EVENT_RELEASE):
201 keystroke->type = ATSPI_KEY_RELEASED;
209 ("key_event type %d; val=%d code=%d modifiers=%x name=%s is_text=%d, time=%lx\n",
210 (int) keystroke->type, (int) keystroke->id, (int) keystroke->hw_code,
211 (int) keystroke->modifiers, keystroke->event_string,
212 (int) keystroke->is_text, (unsigned long) keystroke->timestamp);
218 spi_atk_bridge_key_listener (AtkKeyEventStruct * event, gpointer data)
221 AtspiDeviceEvent key_event;
223 spi_init_keystroke_from_atk_key_event (&key_event, event);
226 Accessibility_DeviceEventController_NotifyListenersSync (&key_event);
228 if (key_event.event_string)
229 g_free (key_event.event_string);
234 /*---------------------------------------------------------------------------*/
237 convert_signal_name (const gchar * s)
239 gchar *ret = g_strdup (s);
244 ret[0] = toupper (ret[0]);
245 while ((t = strchr (ret, '-')) != NULL)
247 memmove (t, t + 1, strlen (t));
254 validate_for_dbus (const gint type,
259 case DBUS_TYPE_STRING:
260 case DBUS_TYPE_OBJECT_PATH:
263 else if (!g_utf8_validate (val, -1, NULL))
265 g_warning ("atk-bridge: Received bad UTF-8 string when emitting event");
276 append_basic (DBusMessageIter *iter,
282 dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, type, &sub);
284 val = validate_for_dbus ((int) *type, val);
285 dbus_message_iter_append_basic(&sub, (int) *type, &val);
287 dbus_message_iter_close_container(iter, &sub);
291 append_rect (DBusMessageIter *iter,
295 DBusMessageIter variant, sub;
296 const AtkRectangle *rect = (const AtkRectangle *) val;
298 dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, type, &variant);
300 dbus_message_iter_open_container (&variant, DBUS_TYPE_STRUCT, NULL, &sub);
302 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->x));
303 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->y));
304 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->width));
305 dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &(rect->height));
307 dbus_message_iter_close_container (&variant, &sub);
309 dbus_message_iter_close_container(iter, &variant);
313 append_object (DBusMessageIter *iter,
317 spi_object_append_v_reference (iter, ATK_OBJECT (val));
321 signal_name_to_dbus (const gchar *s)
323 gchar *ret = g_strdup (s);
328 ret [0] = toupper (ret [0]);
329 while ((t = strchr (ret, '-')) != NULL)
331 memmove (t, t + 1, strlen (t));
338 * Converts names of the form "active-descendant-changed" to
339 * "ActiveDescendantChanged"
342 ensure_proper_format (const char *name)
344 gchar *ret = (gchar *) g_malloc (strlen (name) * 2 + 2);
346 gboolean need_upper = TRUE;
354 *p++ = toupper (*name);
357 else if (*name == '-')
359 else if (*name == ':')
373 signal_is_needed (const gchar *klass, const gchar *major, const gchar *minor)
378 gboolean ret = FALSE;
381 if (!spi_global_app_data->events_initialized)
384 data [0] = ensure_proper_format (klass + 21);
385 data [1] = ensure_proper_format (major);
386 data [2] = ensure_proper_format (minor);
389 /* Hack: Always pass events that update the cache.
390 * TODO: FOr 2.2, have at-spi2-core define a special "cache listener" for
391 * this instead, so that we don't send these if no one is listening */
392 if (!g_strcmp0 (data [1], "ChildrenChanged") ||
393 !g_strcmp0 (data [1], "PropertyChange") ||
394 !g_strcmp0 (data [1], "StateChanged"))
402 /* Hack: events such as "object::text-changed::insert:system" as
403 generated by Gecko */
404 data [2][strcspn (data [2], ":")] = '\0';
405 for (list = spi_global_app_data->events; list; list = list->next)
408 if (spi_event_is_subtype (data, evdata->data))
416 g_print("event: %s %s %s: %d\n", data[0], data[1], data[2], ret);
424 /* Convert a : to a / so that listeners can use arg0path to match only
427 adapt_minor_for_dbus (const char *source)
429 gchar *ret = g_strdup (source);
430 int i = strcspn (ret, ":");
437 * Emits an AT-SPI event.
438 * AT-SPI events names are split into three parts:
440 * This is mapped onto D-Bus events as:
441 * D-Bus Interface:Signal Name:Detail argument
443 * Marshals a basic type into the 'any_data' attribute of
447 emit_event (AtkObject *obj,
451 dbus_int32_t detail1,
452 dbus_int32_t detail2,
455 void (*append_variant) (DBusMessageIter *, const char *, const void *))
457 DBusConnection *bus = spi_global_app_data->bus;
463 DBusMessageIter iter, iter_struct;
465 if (!klass) klass = "";
466 if (!major) major = "";
467 if (!minor) minor = "";
468 if (!type) type = "u";
470 if (!signal_is_needed (klass, major, minor))
473 path = spi_register_object_to_path (spi_global_register, G_OBJECT (obj));
476 * This is very annoying, but as '-' isn't a legal signal
477 * name in D-Bus (Why not??!?) The names need converting
478 * on this side, and again on the client side.
480 cname = signal_name_to_dbus (major);
481 sig = dbus_message_new_signal(path, klass, cname);
483 dbus_message_iter_init_append(sig, &iter);
485 minor_dbus = adapt_minor_for_dbus (minor);
486 dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &minor_dbus);
488 dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail1);
489 dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail2);
490 append_variant (&iter, type, val);
491 spi_object_append_reference (&iter, spi_global_app_data->root);
493 dbus_connection_send(bus, sig, NULL);
494 dbus_message_unref(sig);
496 if (g_strcmp0 (cname, "ChildrenChanged") != 0)
497 spi_object_lease_if_needed (G_OBJECT (obj));
503 /*---------------------------------------------------------------------------*/
506 * The focus listener handles the ATK 'focus' signal and forwards it
507 * as the AT-SPI event, 'focus:'
510 focus_tracker (AtkObject * accessible)
512 emit_event (accessible, ITF_EVENT_FOCUS, "focus", "", 0, 0,
513 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
516 /*---------------------------------------------------------------------------*/
518 #define PCHANGE "PropertyChange"
521 * This handler handles the following ATK signals and
522 * converts them to AT-SPI events:
524 * Gtk:AtkObject:property-change -> object:property-change:(property-name)
526 * The property-name is part of the ATK property-change signal.
529 property_event_listener (GSignalInvocationHint * signal_hint,
530 guint n_param_values,
531 const GValue * param_values, gpointer data)
533 AtkObject *accessible;
534 AtkPropertyValues *values;
536 const gchar *pname = NULL;
542 accessible = g_value_get_object (¶m_values[0]);
543 values = (AtkPropertyValues *) g_value_get_pointer (¶m_values[1]);
545 pname = values[0].property_name;
547 /* TODO Could improve this control statement by matching
548 * on only the end of the signal names,
550 if (strcmp (pname, "accessible-name") == 0)
552 s1 = atk_object_get_name (accessible);
554 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
555 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
557 else if (strcmp (pname, "accessible-description") == 0)
559 s1 = atk_object_get_description (accessible);
561 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
562 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
564 else if (strcmp (pname, "accessible-parent") == 0)
566 otemp = atk_object_get_parent (accessible);
568 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
569 "(so)", otemp, append_object);
571 else if (strcmp (pname, "accessible-role") == 0)
573 i = atk_object_get_role (accessible);
574 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
575 DBUS_TYPE_UINT32_AS_STRING, GINT_TO_POINTER(i), append_basic);
577 else if (strcmp (pname, "accessible-table-summary") == 0)
579 otemp = atk_table_get_summary (ATK_TABLE (accessible));
581 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
582 "(so)", otemp, append_object);
584 else if (strcmp (pname, "accessible-table-column-header") == 0)
586 i = g_value_get_int (&(values->new_value));
587 otemp = atk_table_get_column_header (ATK_TABLE (accessible), i);
589 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
590 "(so)", otemp, append_object);
592 else if (strcmp (pname, "accessible-table-row-header") == 0)
594 i = g_value_get_int (&(values->new_value));
595 otemp = atk_table_get_row_header (ATK_TABLE (accessible), i);
597 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
598 "(so)", otemp, append_object);
600 else if (strcmp (pname, "accessible-table-row-description") == 0)
602 i = g_value_get_int (&(values->new_value));
603 s1 = atk_table_get_row_description (ATK_TABLE (accessible), i);
604 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
605 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
607 else if (strcmp (pname, "accessible-table-column-description") == 0)
609 i = g_value_get_int (&(values->new_value));
610 s1 = atk_table_get_column_description (ATK_TABLE (accessible), i);
611 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
612 DBUS_TYPE_STRING_AS_STRING, s1, append_basic);
614 else if (strcmp (pname, "accessible-table-caption-object") == 0)
616 otemp = atk_table_get_caption (ATK_TABLE (accessible));
617 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
618 "(so)", otemp, append_object);
622 emit_event (accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0,
623 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
628 /*---------------------------------------------------------------------------*/
630 #define STATE_CHANGED "state-changed"
633 * The state event listener handles 'Gtk:AtkObject:state-change' ATK signals
634 * and forwards them as object:state-changed:(param-name) AT-SPI events. Where
635 * the param-name is part of the ATK state-change signal.
638 state_event_listener (GSignalInvocationHint * signal_hint,
639 guint n_param_values,
640 const GValue * param_values, gpointer data)
642 AtkObject *accessible;
646 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
647 pname = g_value_get_string (¶m_values[1]);
649 detail1 = (g_value_get_boolean (¶m_values[2])) ? 1 : 0;
650 emit_event (accessible, ITF_EVENT_OBJECT, STATE_CHANGED, pname, detail1, 0,
651 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
653 if (!g_strcmp0 (pname, "defunct") && detail1)
654 spi_register_deregister_object (spi_global_register, G_OBJECT (accessible),
659 /*---------------------------------------------------------------------------*/
662 * The window event listener handles the following ATK signals and forwards
663 * them as AT-SPI events:
665 * window:create -> window:create
666 * window:destroy -> window:destroy
667 * window:minimize -> window:minimize
668 * window:maximize -> window:maximize
669 * window:activate -> window:activate
670 * window:deactivate -> window:deactivate
673 window_event_listener (GSignalInvocationHint * signal_hint,
674 guint n_param_values,
675 const GValue * param_values, gpointer data)
677 AtkObject *accessible;
678 GSignalQuery signal_query;
679 const gchar *name, *s;
681 g_signal_query (signal_hint->signal_id, &signal_query);
682 name = signal_query.signal_name;
684 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
685 s = atk_object_get_name (accessible);
686 emit_event (accessible, ITF_EVENT_WINDOW, name, "", 0, 0,
687 DBUS_TYPE_STRING_AS_STRING, s, append_basic);
692 /*---------------------------------------------------------------------------*/
695 * The document event listener handles the following ATK signals
696 * and converts them to AT-SPI events:
698 * Gtk:AtkDocument:load-complete -> document:load-complete
699 * Gtk:AtkDocument:load-stopped -> document:load-stopped
700 * Gtk:AtkDocument:reload -> document:reload
703 document_event_listener (GSignalInvocationHint * signal_hint,
704 guint n_param_values,
705 const GValue * param_values, gpointer data)
707 AtkObject *accessible;
708 GSignalQuery signal_query;
709 const gchar *name, *s;
711 g_signal_query (signal_hint->signal_id, &signal_query);
712 name = signal_query.signal_name;
714 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
715 s = atk_object_get_name (accessible);
716 emit_event (accessible, ITF_EVENT_DOCUMENT, name, "", 0, 0,
717 DBUS_TYPE_STRING_AS_STRING, s, append_basic);
722 /*---------------------------------------------------------------------------*/
725 * Signal handler for "Gtk:AtkComponent:bounds-changed". Converts
726 * this to an AT-SPI event - "object:bounds-changed".
729 bounds_event_listener (GSignalInvocationHint * signal_hint,
730 guint n_param_values,
731 const GValue * param_values, gpointer data)
733 AtkObject *accessible;
734 AtkRectangle *atk_rect;
735 GSignalQuery signal_query;
736 const gchar *name, *s;
738 g_signal_query (signal_hint->signal_id, &signal_query);
739 name = signal_query.signal_name;
741 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
743 if (G_VALUE_HOLDS_BOXED (param_values + 1))
745 atk_rect = g_value_get_boxed (param_values + 1);
747 emit_event (accessible, ITF_EVENT_OBJECT, name, "", 0, 0,
748 "(iiii)", atk_rect, append_rect);
753 /*---------------------------------------------------------------------------*/
756 * Handles the ATK signal 'Gtk:AtkObject:active-descendant-changed' and
757 * converts it to the AT-SPI signal - 'object:active-descendant-changed'.
761 active_descendant_event_listener (GSignalInvocationHint * signal_hint,
762 guint n_param_values,
763 const GValue * param_values, gpointer data)
765 AtkObject *accessible;
767 GSignalQuery signal_query;
768 const gchar *name, *minor;
771 g_signal_query (signal_hint->signal_id, &signal_query);
772 name = signal_query.signal_name;
774 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
775 child = ATK_OBJECT (g_value_get_pointer (¶m_values[1]));
776 g_return_val_if_fail (ATK_IS_OBJECT (child), TRUE);
777 minor = g_quark_to_string (signal_hint->detail);
779 detail1 = atk_object_get_index_in_parent (child);
781 emit_event (accessible, ITF_EVENT_OBJECT, name, "", detail1, 0,
782 "(so)", child, append_object);
786 /*---------------------------------------------------------------------------*/
789 * Handles the ATK signal 'Gtk:AtkHypertext:link-selected' and
790 * converts it to the AT-SPI signal - 'object:link-selected'
794 link_selected_event_listener (GSignalInvocationHint * signal_hint,
795 guint n_param_values,
796 const GValue * param_values, gpointer data)
798 AtkObject *accessible;
799 GSignalQuery signal_query;
800 const gchar *name, *minor;
803 g_signal_query (signal_hint->signal_id, &signal_query);
804 name = signal_query.signal_name;
806 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
807 minor = g_quark_to_string (signal_hint->detail);
809 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
810 detail1 = g_value_get_int (¶m_values[1]);
812 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, 0,
813 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
817 /*---------------------------------------------------------------------------*/
820 * Handles the ATK signal 'Gtk:AtkText:text-changed' and
821 * converts it to the AT-SPI signal - 'object:text-changed'
822 * This signal is deprecated by Gtk:AtkText:text-insert
823 * and Gtk:AtkText:text-remove
827 text_changed_event_listener (GSignalInvocationHint * signal_hint,
828 guint n_param_values,
829 const GValue * param_values, gpointer data)
831 AtkObject *accessible;
832 GSignalQuery signal_query;
833 const gchar *name, *minor;
835 gint detail1 = 0, detail2 = 0;
837 g_signal_query (signal_hint->signal_id, &signal_query);
838 name = signal_query.signal_name;
840 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
841 minor = g_quark_to_string (signal_hint->detail);
843 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
844 detail1 = g_value_get_int (¶m_values[1]);
846 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
847 detail2 = g_value_get_int (¶m_values[2]);
850 atk_text_get_text (ATK_TEXT (accessible), detail1, detail1 + detail2);
852 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
853 DBUS_TYPE_STRING_AS_STRING, selected, append_basic);
860 * Handles the ATK signal 'Gtk:AtkText:text-insert' and
861 * converts it to the AT-SPI signal - 'object:text-changed'
865 text_insert_event_listener (GSignalInvocationHint * signal_hint,
866 guint n_param_values,
867 const GValue * param_values, gpointer data)
869 AtkObject *accessible;
870 guint text_changed_signal_id;
871 GSignalQuery signal_query;
874 gint detail1 = 0, detail2 = 0;
876 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
877 /* Get signal name for 'Gtk:AtkText:text-changed' so
878 * we convert it to the AT-SPI signal - 'object:text-changed'
880 text_changed_signal_id = g_signal_lookup ("text-changed", G_OBJECT_TYPE (accessible));
881 g_signal_query (text_changed_signal_id, &signal_query);
882 name = signal_query.signal_name;
885 /* Add the insert and keep any detail coming from atk */
886 minor = g_quark_to_string (signal_hint->detail);
888 minor = g_strconcat ("insert:", minor, NULL);
890 minor = g_strdup ("insert");
892 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
893 detail1 = g_value_get_int (¶m_values[1]);
895 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
896 detail2 = g_value_get_int (¶m_values[2]);
898 if (G_VALUE_TYPE (¶m_values[3]) == G_TYPE_STRING)
899 text = g_value_get_string (¶m_values[3]);
901 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
902 DBUS_TYPE_STRING_AS_STRING, text, append_basic);
908 * Handles the ATK signal 'Gtk:AtkText:text-remove' and
909 * converts it to the AT-SPI signal - 'object:text-changed'
913 text_remove_event_listener (GSignalInvocationHint * signal_hint,
914 guint n_param_values,
915 const GValue * param_values, gpointer data)
917 AtkObject *accessible;
918 guint text_changed_signal_id;
919 GSignalQuery signal_query;
922 gint detail1 = 0, detail2 = 0;
924 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
925 /* Get signal name for 'Gtk:AtkText:text-changed' so
926 * we convert it to the AT-SPI signal - 'object:text-changed'
928 text_changed_signal_id = g_signal_lookup ("text-changed", G_OBJECT_TYPE (accessible));
929 g_signal_query (text_changed_signal_id, &signal_query);
930 name = signal_query.signal_name;
932 minor = g_quark_to_string (signal_hint->detail);
934 /* Add the delete and keep any detail coming from atk */
935 minor = g_quark_to_string (signal_hint->detail);
937 minor = g_strconcat ("delete:", minor, NULL);
939 minor = g_strdup ("delete");
941 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
942 detail1 = g_value_get_int (¶m_values[1]);
944 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
945 detail2 = g_value_get_int (¶m_values[2]);
947 if (G_VALUE_TYPE (¶m_values[3]) == G_TYPE_STRING)
948 text = g_value_get_string (¶m_values[3]);
950 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
951 DBUS_TYPE_STRING_AS_STRING, text, append_basic);
957 /*---------------------------------------------------------------------------*/
960 * Handles the ATK signal 'Gtk:AtkText:text-selection-changed' and
961 * converts it to the AT-SPI signal - 'object:text-selection-changed'
965 text_selection_changed_event_listener (GSignalInvocationHint * signal_hint,
966 guint n_param_values,
967 const GValue * param_values,
970 AtkObject *accessible;
971 GSignalQuery signal_query;
972 const gchar *name, *minor;
973 gint detail1 = 0, detail2 = 0;
975 g_signal_query (signal_hint->signal_id, &signal_query);
976 name = signal_query.signal_name;
978 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
979 minor = g_quark_to_string (signal_hint->detail);
981 if (G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
982 detail1 = g_value_get_int (¶m_values[1]);
984 if (G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
985 detail2 = g_value_get_int (¶m_values[2]);
987 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
988 DBUS_TYPE_STRING_AS_STRING, "", append_basic);
992 /*---------------------------------------------------------------------------*/
995 * Children changed signal converter and forwarder.
997 * Klass (Interface) org.a11y.atspi.Event.Object
998 * Major is the signal name.
999 * Minor is 'add' or 'remove'
1000 * detail1 is the index.
1002 * any_data is the child reference.
1005 children_changed_event_listener (GSignalInvocationHint * signal_hint,
1006 guint n_param_values,
1007 const GValue * param_values, gpointer data)
1009 GSignalQuery signal_query;
1010 const gchar *name, *minor;
1011 gint detail1 = 0, detail2 = 0;
1013 AtkObject *accessible, *ao=NULL;
1016 g_signal_query (signal_hint->signal_id, &signal_query);
1017 name = signal_query.signal_name;
1019 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
1020 minor = g_quark_to_string (signal_hint->detail);
1022 detail1 = g_value_get_uint (param_values + 1);
1023 child = g_value_get_pointer (param_values + 2);
1025 if (ATK_IS_OBJECT (child))
1027 ao = ATK_OBJECT (child);
1028 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1029 "(so)", ao, append_object);
1031 else if ((minor != NULL) && (strcmp (minor, "add") == 0))
1033 ao = atk_object_ref_accessible_child (accessible,
1035 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1036 "(so)", ao, append_object);
1040 emit_event (accessible, ITF_EVENT_OBJECT, name, minor, detail1, detail2,
1041 "(so)", ao, append_object);
1047 /*---------------------------------------------------------------------------*/
1050 toplevel_added_event_listener (AtkObject * accessible,
1051 guint index, AtkObject * child)
1053 emit_event (accessible, ITF_EVENT_OBJECT, "children-changed", "add", index, 0,
1054 "(so)", child, append_object);
1058 toplevel_removed_event_listener (AtkObject * accessible,
1059 guint index, AtkObject * child)
1061 emit_event (accessible, ITF_EVENT_OBJECT, "children-changed", "remove", index, 0,
1062 "(so)", child, append_object);
1065 /*---------------------------------------------------------------------------*/
1068 * Generic signal converter and forwarder.
1070 * Klass (Interface) org.a11y.atspi.Event.Object
1071 * Major is the signal name.
1078 generic_event_listener (GSignalInvocationHint * signal_hint,
1079 guint n_param_values,
1080 const GValue * param_values, gpointer data)
1082 AtkObject *accessible;
1083 GSignalQuery signal_query;
1085 int detail1 = 0, detail2 = 0;
1087 g_signal_query (signal_hint->signal_id, &signal_query);
1088 name = signal_query.signal_name;
1090 accessible = ATK_OBJECT (g_value_get_object (¶m_values[0]));
1092 if (n_param_values > 1 && G_VALUE_TYPE (¶m_values[1]) == G_TYPE_INT)
1093 detail1 = g_value_get_int (¶m_values[1]);
1095 if (n_param_values > 2 && G_VALUE_TYPE (¶m_values[2]) == G_TYPE_INT)
1096 detail2 = g_value_get_int (¶m_values[2]);
1098 emit_event (accessible, ITF_EVENT_OBJECT, name, "", detail1, detail2,
1099 DBUS_TYPE_INT32_AS_STRING, 0, append_basic);
1103 /*---------------------------------------------------------------------------*/
1106 * Registers the provided function as a handler for the given signal name
1107 * and stores the signal id returned so that the function may be
1108 * de-registered later.
1111 add_signal_listener (GSignalEmissionHook listener, const char *signal_name)
1115 id = atk_add_global_event_listener (listener, signal_name);
1117 if (id > 0) /* id == 0 is a failure */
1118 g_array_append_val (listener_ids, id);
1124 * Initialization for the signal handlers.
1126 * Registers all required signal handlers.
1129 spi_atk_register_event_listeners (void)
1132 * Kludge to make sure the Atk interface types are registered, otherwise
1133 * the AtkText signal handlers below won't get registered
1135 GObject *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
1136 AtkObject *bo = atk_no_op_object_new (ao);
1139 g_object_unref (G_OBJECT (bo));
1140 g_object_unref (ao);
1144 g_warning ("atk_bridge: spi_atk-register_event_listeners called multiple times");
1148 /* Register for focus event notifications, and register app with central registry */
1149 listener_ids = g_array_sized_new (FALSE, TRUE, sizeof (guint), 16);
1151 atk_bridge_focus_tracker_id = atk_add_focus_tracker (focus_tracker);
1153 add_signal_listener (property_event_listener,
1154 "Gtk:AtkObject:property-change");
1156 /* window events: we tentative try to register using the old format */
1157 id = add_signal_listener (window_event_listener, "window:create");
1161 /* If we are able to register using the old format, we assume
1162 * that the ATK implementor is managing window events without
1163 * AtkWindow. We can't use the opposite test because after
1164 * including AtkWindow on ATK you would be able to register to
1165 * that event, although the ATK implementor could or not use it.
1168 add_signal_listener (window_event_listener, "window:destroy");
1169 add_signal_listener (window_event_listener, "window:minimize");
1170 add_signal_listener (window_event_listener, "window:maximize");
1171 add_signal_listener (window_event_listener, "window:restore");
1172 add_signal_listener (window_event_listener, "window:activate");
1173 add_signal_listener (window_event_listener, "window:deactivate");
1177 add_signal_listener (window_event_listener, "Atk:AtkWindow:create");
1178 add_signal_listener (window_event_listener, "Atk:AtkWindow:destroy");
1179 add_signal_listener (window_event_listener, "Atk:AtkWindow:minimize");
1180 add_signal_listener (window_event_listener, "Atk:AtkWindow:maximize");
1181 add_signal_listener (window_event_listener, "Atk:AtkWindow:restore");
1182 add_signal_listener (window_event_listener, "Atk:AtkWindow:activate");
1183 add_signal_listener (window_event_listener, "Atk:AtkWindow:deactivate");
1186 add_signal_listener (document_event_listener,
1187 "Gtk:AtkDocument:load-complete");
1188 add_signal_listener (document_event_listener, "Gtk:AtkDocument:reload");
1189 add_signal_listener (document_event_listener,
1190 "Gtk:AtkDocument:load-stopped");
1191 /* TODO Fake this event on the client side */
1192 add_signal_listener (state_event_listener, "Gtk:AtkObject:state-change");
1194 add_signal_listener (active_descendant_event_listener,
1195 "Gtk:AtkObject:active-descendant-changed");
1196 add_signal_listener (bounds_event_listener,
1197 "Gtk:AtkComponent:bounds-changed");
1198 add_signal_listener (text_selection_changed_event_listener,
1199 "Gtk:AtkText:text-selection-changed");
1200 add_signal_listener (text_changed_event_listener,
1201 "Gtk:AtkText:text-changed");
1202 add_signal_listener (text_insert_event_listener,
1203 "Gtk:AtkText:text-insert");
1204 add_signal_listener (text_remove_event_listener,
1205 "Gtk:AtkText:text-remove");
1206 add_signal_listener (link_selected_event_listener,
1207 "Gtk:AtkHypertext:link-selected");
1208 add_signal_listener (generic_event_listener,
1209 "Gtk:AtkObject:visible-data-changed");
1210 add_signal_listener (generic_event_listener,
1211 "Gtk:AtkSelection:selection-changed");
1212 add_signal_listener (generic_event_listener,
1213 "Gtk:AtkText:text-attributes-changed");
1214 add_signal_listener (generic_event_listener,
1215 "Gtk:AtkText:text-caret-moved");
1216 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-inserted");
1217 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-reordered");
1218 add_signal_listener (generic_event_listener, "Gtk:AtkTable:row-deleted");
1219 add_signal_listener (generic_event_listener,
1220 "Gtk:AtkTable:column-inserted");
1221 add_signal_listener (generic_event_listener,
1222 "Gtk:AtkTable:column-reordered");
1223 add_signal_listener (generic_event_listener, "Gtk:AtkTable:column-deleted");
1224 add_signal_listener (generic_event_listener, "Gtk:AtkTable:model-changed");
1225 add_signal_listener (children_changed_event_listener, "Gtk:AtkObject:children-changed");
1228 g_signal_connect (G_OBJECT (spi_global_app_data->root),
1229 "children-changed::add",
1230 (GCallback) toplevel_added_event_listener, NULL);
1232 g_signal_connect (G_OBJECT (spi_global_app_data->root),
1233 "children-changed::remove",
1234 (GCallback) toplevel_removed_event_listener, NULL);
1238 * May add the following listeners to implement preemptive key listening for GTK+
1240 * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-press-event");
1241 * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-release-event");
1243 atk_bridge_key_event_listener_id =
1244 atk_add_key_event_listener (spi_atk_bridge_key_listener, NULL);
1247 /*---------------------------------------------------------------------------*/
1250 * De-registers all ATK signal handlers.
1253 spi_atk_deregister_event_listeners (void)
1256 GArray *ids = listener_ids;
1257 listener_ids = NULL;
1259 if (atk_bridge_focus_tracker_id)
1261 atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
1262 atk_bridge_focus_tracker_id = 0;
1267 for (i = 0; i < ids->len; i++)
1269 atk_remove_global_event_listener (g_array_index (ids, guint, i));
1271 g_array_free (ids, TRUE);
1274 if (atk_bridge_key_event_listener_id)
1276 atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
1277 atk_bridge_key_event_listener_id = 0;
1281 /*---------------------------------------------------------------------------*/
1284 * TODO This function seems out of place here.
1286 * Emits fake deactivate signals on all top-level windows.
1287 * Used when shutting down AT-SPI, ensuring that all
1288 * windows have been removed on the client side.
1291 spi_atk_tidy_windows (void)
1297 root = atk_get_root ();
1298 n_children = atk_object_get_n_accessible_children (root);
1299 for (i = 0; i < n_children; i++)
1302 AtkStateSet *stateset;
1305 child = atk_object_ref_accessible_child (root, i);
1306 stateset = atk_object_ref_state_set (child);
1308 name = atk_object_get_name (child);
1309 if (atk_state_set_contains_state (stateset, ATK_STATE_ACTIVE))
1311 emit_event (child, ITF_EVENT_WINDOW, "deactivate", NULL, 0, 0,
1312 DBUS_TYPE_STRING_AS_STRING, name, append_basic);
1314 g_object_unref (stateset);
1316 emit_event (child, ITF_EVENT_WINDOW, "destroy", NULL, 0, 0,
1317 DBUS_TYPE_STRING_AS_STRING, name, append_basic);
1318 g_object_unref (child);
1323 spi_event_is_subtype (gchar **needle, gchar **haystack)
1325 while (*haystack && **haystack)
1327 if (g_strcmp0 (*needle, *haystack))
1335 /*END------------------------------------------------------------------------*/