2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001 Sun Microsystems Inc.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
26 #include <libbonobo.h>
27 #include <orbit/orbit.h>
29 #include <atk/atkobject.h>
30 #include <atk/atknoopobject.h>
31 #include <libspi/Accessibility.h>
32 #include "accessible.h"
33 #include "application.h"
35 #undef SPI_BRIDGE_DEBUG
37 static CORBA_Environment ev;
38 static Accessibility_Registry registry;
39 static SpiApplication *this_app = NULL;
41 static gboolean bridge_idle_init (gpointer user_data);
42 static void bridge_focus_tracker (AtkObject *object);
43 static void bridge_exit_func (void);
44 static void register_atk_event_listeners (void);
45 static gboolean bridge_property_event_listener (GSignalInvocationHint *signal_hint,
47 const GValue *param_values,
49 static gboolean bridge_state_event_listener (GSignalInvocationHint *signal_hint,
51 const GValue *param_values,
53 static gboolean bridge_signal_listener (GSignalInvocationHint *signal_hint,
55 const GValue *param_values,
58 static gint bridge_key_listener (AtkKeyEventStruct *event,
62 gtk_module_init (gint *argc, gchar **argv[])
66 if (!bonobo_init (argc, *argv))
68 g_error ("Could not initialize Bonobo");
71 CORBA_exception_init(&ev);
73 registry = bonobo_activation_activate_from_id (
74 "OAFIID:Accessibility_Registry:proto0.1", 0, NULL, &ev);
76 if (ev._major != CORBA_NO_EXCEPTION)
78 g_error ("Accessibility app error: exception during "
79 "registry activation from id: %s\n",
80 CORBA_exception_id (&ev));
81 CORBA_exception_free (&ev);
84 if (CORBA_Object_is_nil (registry, &ev))
86 g_error ("Could not locate registry");
91 /* Create the accessible application server object */
93 this_app = spi_application_new (atk_get_root ());
95 fprintf (stderr, "About to register application\n");
97 Accessibility_Registry_registerApplication (registry,
98 BONOBO_OBJREF (this_app),
101 g_atexit (bridge_exit_func);
103 g_idle_add (bridge_idle_init, NULL);
109 bridge_idle_init (gpointer user_data)
111 register_atk_event_listeners ();
113 fprintf (stderr, "Application registered & listening\n");
119 register_atk_event_listeners (void)
122 * kludge to make sure the Atk interface types are registered, otherwise
123 * the AtkText signal handlers below won't get registered
126 AtkObject *o = atk_no_op_object_new (g_object_new (ATK_TYPE_OBJECT, NULL));
128 /* Register for focus event notifications, and register app with central registry */
130 atk_add_focus_tracker (bridge_focus_tracker);
131 atk_add_global_event_listener (bridge_property_event_listener, "Gtk:AtkObject:property-change");
132 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:children-changed");
133 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:visible-data-changed");
134 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkSelection:selection-changed");
135 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-selection-changed");
136 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-changed");
137 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-caret-moved");
138 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-inserted");
139 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-reordered");
140 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-deleted");
141 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-inserted");
142 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-reordered");
143 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-deleted");
144 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:model-changed");
145 atk_add_key_event_listener (bridge_key_listener, NULL);
147 /* g_object_unref (o); */
151 bridge_exit_func (void)
153 fprintf (stderr, "exiting bridge\n");
156 FIXME: this may be incorrect for apps that do their own bonobo shutdown,
157 until we can explicitly shutdown to get the ordering right. */
159 if (!bonobo_is_initialized ())
161 g_warning ("Re-initializing bonobo\n");
162 g_assert (bonobo_init (0, NULL));
163 g_assert (bonobo_activate ());
164 registry = bonobo_activation_activate_from_id (
165 "OAFIID:Accessibility_Registry:proto0.1", 0, NULL, &ev);
170 Accessibility_Registry_deregisterApplication (registry,
171 BONOBO_OBJREF (this_app),
174 bonobo_object_unref (BONOBO_OBJECT (this_app));
176 fprintf (stderr, "bridge exit func complete.\n");
178 bonobo_debug_shutdown ();
182 bridge_focus_tracker (AtkObject *object)
184 SpiAccessible *source;
185 Accessibility_Event e;
187 source = spi_accessible_new (object);
190 e.source = CORBA_Object_duplicate (BONOBO_OBJREF (source), &ev);
194 Accessibility_Registry_notifyEvent (registry, &e, &ev);
196 CORBA_exception_free (&ev);
200 emit_eventv (GObject *gobject,
201 unsigned long detail1,
202 unsigned long detail2,
203 const char *format, ...)
206 Accessibility_Event e;
207 SpiAccessible *source;
210 va_start (args, format);
212 if (ATK_IS_IMPLEMENTOR (gobject))
214 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
215 source = spi_accessible_new (aobject);
216 g_object_unref (G_OBJECT (aobject));
218 else if (ATK_IS_OBJECT (gobject))
220 aobject = ATK_OBJECT (gobject);
221 source = spi_accessible_new (aobject);
227 g_error ("received property-change event from non-AtkImplementor");
232 e.type = g_strdup_vprintf (format, args);
233 e.source = CORBA_Object_duplicate (BONOBO_OBJREF (source), &ev);
237 #ifdef SPI_BRIDGE_DEBUG
238 g_warning ("Emitting event '%s' (%d, %d) on %p",
239 e.type, e.detail1, e.detail2, source);
242 Accessibility_Registry_notifyEvent (registry, &e, &ev);
244 CORBA_exception_free (&ev);
253 bridge_property_event_listener (GSignalInvocationHint *signal_hint,
254 guint n_param_values,
255 const GValue *param_values,
258 AtkPropertyValues *values;
261 #ifdef SPI_BRIDGE_DEBUG
262 GSignalQuery signal_query;
265 g_signal_query (signal_hint->signal_id, &signal_query);
266 name = signal_query.signal_name;
268 fprintf (stderr, "Received (property) signal %s:%s\n",
269 g_type_name (signal_query.itype), name);
272 gobject = g_value_get_object (param_values + 0);
273 values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
275 emit_eventv (gobject, 0, 0, "object:property-change:%s", values->property_name);
281 bridge_state_event_listener (GSignalInvocationHint *signal_hint,
282 guint n_param_values,
283 const GValue *param_values,
287 AtkPropertyValues *values;
288 #ifdef SPI_BRIDGE_DEBUG
289 GSignalQuery signal_query;
292 g_signal_query (signal_hint->signal_id, &signal_query);
293 name = signal_query.signal_name;
294 fprintf (stderr, "Received (state) signal %s:%s\n",
295 g_type_name (signal_query.itype), name);
298 gobject = g_value_get_object (param_values + 0);
299 values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
301 emit_eventv (gobject,
302 (unsigned long) values->old_value.data[0].v_ulong,
303 (unsigned long) values->new_value.data[0].v_ulong,
304 "object:%s:?", values->property_name);
310 accessibility_init_keystroke_from_atk_key_event (Accessibility_KeyStroke *keystroke,
311 AtkKeyEventStruct *event)
316 g_print ("event %c (%d)\n", (int) event->keyval, (int) event->keycode);
322 g_print ("WARNING: NULL key event!");
325 keystroke->keyID = (CORBA_long) event->keyval;
326 keystroke->keycode = (CORBA_short) event->keycode;
327 keystroke->timestamp = (CORBA_unsigned_long) event->timestamp;
328 keystroke->modifiers = (CORBA_unsigned_short) (event->state & 0xFFFF);
332 case (ATK_KEY_EVENT_PRESS):
333 keystroke->type = Accessibility_KEY_PRESSED;
335 case (ATK_KEY_EVENT_RELEASE):
336 keystroke->type = Accessibility_KEY_RELEASED;
345 bridge_key_listener (AtkKeyEventStruct *event, gpointer data)
347 CORBA_boolean result;
348 Accessibility_KeyStroke key_event;
349 Accessibility_DeviceEventController controller =
350 Accessibility_Registry_getDeviceEventController (registry, &ev);
354 CORBA_exception_free (&ev);
360 accessibility_init_keystroke_from_atk_key_event (&key_event, event);
362 /* FIXME: this casting is just totaly bogus */
363 result = Accessibility_DeviceEventController_notifyListenersSync (
364 controller, (Accessibility_DeviceEvent *) &key_event, &ev);
366 CORBA_exception_free (&ev);
373 bridge_signal_listener (GSignalInvocationHint *signal_hint,
374 guint n_param_values,
375 const GValue *param_values,
379 GSignalQuery signal_query;
382 g_signal_query (signal_hint->signal_id, &signal_query);
384 name = signal_query.signal_name;
386 #ifdef SPI_BRIDGE_DEBUG
387 fprintf (stderr, "Received signal %s:%s\n",
388 g_type_name (signal_query.itype), name);
391 gobject = g_value_get_object (param_values + 0);
393 emit_eventv (gobject, 0, 0, "%s:%s", name, g_type_name (signal_query.itype));