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.
25 #include <libbonobo.h>
26 #include <orbit/orbit.h>
28 #include <atk/atkobject.h>
29 #include <atk/atknoopobject.h>
30 #include <libspi/Accessibility.h>
31 #include "accessible.h"
32 #include "application.h"
34 #define SPI_BRIDGE_DEBUG 1
36 #define APP_STATIC_BUFF_SZ 64
38 typedef struct _ArgStruct ArgStruct;
45 static CORBA_Environment ev;
46 static Accessibility_Registry registry;
47 static SpiApplication *this_app;
49 static gboolean bridge_register_app (gpointer p);
50 static void bridge_focus_tracker (AtkObject *object);
51 static void bridge_exit_func(void);
52 static gboolean bridge_register_event_listener ();
53 static void register_atk_event_listeners();
54 static gboolean bridge_property_event_listener (GSignalInvocationHint *signal_hint,
56 const GValue *param_values,
58 static gboolean bridge_state_event_listener (GSignalInvocationHint *signal_hint,
60 const GValue *param_values,
62 static gboolean bridge_signal_listener (GSignalInvocationHint *signal_hint,
64 const GValue *param_values,
67 static gint bridge_key_listener (AtkImplementor *atk_impl,
68 AtkKeyEventStruct *event,
72 gtk_module_init(gint *argc, gchar **argv[])
74 ArgStruct *args = (ArgStruct *) g_new0(ArgStruct, 1);
77 g_idle_add (bridge_register_app, args);
78 g_atexit (bridge_exit_func);
82 bridge_register_app (gpointer gp)
87 ArgStruct *args = (ArgStruct *)gp;
89 CORBA_exception_init(&ev);
91 if (!bonobo_init (&(args->c), args->v))
93 g_error ("Could not initialize Bonobo");
96 /* Create the accesssible application server object */
97 this_app = spi_application_new(atk_get_root ());
99 obj_id = "OAFIID:Accessibility_Registry:proto0.1";
101 oclient = bonobo_activation_activate_from_id (obj_id, 0, NULL, &ev);
102 if (ev._major != CORBA_NO_EXCEPTION) {
104 ("Accessibility app error: exception during registry activation from id: %s\n"),
105 CORBA_exception_id(&ev));
106 CORBA_exception_free(&ev);
110 if (CORBA_Object_is_nil (oclient, &ev))
112 g_error ("Could not locate registry");
115 registry = (Accessibility_Registry) oclient;
117 fprintf(stderr, "About to register application\n");
121 Accessibility_Registry_registerApplication (registry,
122 CORBA_Object_duplicate (BONOBO_OBJREF (this_app), &ev),
125 register_atk_event_listeners ();
131 register_atk_event_listeners ()
136 * kludge to make sure the Atk interface types are registered, otherwise
137 * the AtkText signal handlers below won't get registered
140 AtkNoOpObject *o = atk_no_op_object_new (g_object_new (ATK_TYPE_OBJECT, NULL));
142 /* Register for focus event notifications, and register app with central registry */
144 g_type_class_ref (ATK_TYPE_TEXT);
145 g_type_class_ref (ATK_TYPE_SELECTION);
146 g_type_class_ref (ATK_TYPE_TABLE);
148 atk_add_focus_tracker (bridge_focus_tracker);
149 atk_add_global_event_listener (bridge_property_event_listener, "Gtk:AtkObject:property-change");
150 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:children-changed");
151 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:visible-data-changed");
152 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkSelection:selection-changed");
153 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-selection-changed");
154 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-changed");
155 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-caret-moved");
156 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-inserted");
157 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-reordered");
158 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-deleted");
159 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-inserted");
160 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-reordered");
161 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-deleted");
162 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:model-changed");
163 atk_add_key_event_listener (bridge_key_listener, NULL);
166 static void bridge_exit_func()
168 fprintf (stderr, "exiting bridge\n");
169 Accessibility_Registry_deregisterApplication (registry,
170 CORBA_Object_duplicate (BONOBO_OBJREF (this_app), &ev),
172 fprintf (stderr, "bridge exit func complete.\n");
175 static void bridge_focus_tracker (AtkObject *object)
177 Accessibility_Event *e = Accessibility_Event__alloc();
178 e->type = CORBA_string_dup ("focus:");
179 e->source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (object)), &ev);
182 Accessibility_Registry_notifyEvent (registry, e, &ev);
186 bridge_property_event_listener (GSignalInvocationHint *signal_hint,
187 guint n_param_values,
188 const GValue *param_values,
191 Accessibility_Event *e = Accessibility_Event__alloc();
192 Bonobo_Unknown source = NULL;
194 AtkPropertyValues *values;
196 GSignalQuery signal_query;
198 char sbuf[APP_STATIC_BUFF_SZ];
200 g_signal_query (signal_hint->signal_id, &signal_query);
201 name = signal_query.signal_name;
202 #ifdef SPI_BRIDGE_DEBUG
203 fprintf (stderr, "Received (property) signal %s:%s\n",
204 g_type_name (signal_query.itype), name);
206 gobject = g_value_get_object (param_values + 0);
207 values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
209 /* notify the actual listeners */
210 if (ATK_IS_IMPLEMENTOR (gobject))
212 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
213 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
214 g_object_unref (G_OBJECT(aobject));
216 else if (ATK_IS_OBJECT (gobject))
218 aobject = ATK_OBJECT (gobject);
219 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
223 g_error("received property-change event from non-AtkImplementor");
226 snprintf(sbuf, APP_STATIC_BUFF_SZ, "object:property-change:%s", values->property_name);
227 e->type = CORBA_string_dup (sbuf);
232 Accessibility_Registry_notifyEvent (registry, e, &ev);
237 bridge_state_event_listener (GSignalInvocationHint *signal_hint,
238 guint n_param_values,
239 const GValue *param_values,
242 Accessibility_Event *e = Accessibility_Event__alloc();
243 Bonobo_Unknown source = NULL;
245 AtkPropertyValues *values;
247 GSignalQuery signal_query;
249 char sbuf[APP_STATIC_BUFF_SZ];
251 g_signal_query (signal_hint->signal_id, &signal_query);
252 name = signal_query.signal_name;
253 #ifdef SPI_BRIDGE_DEBUG
254 fprintf (stderr, "Received (state) signal %s:%s\n",
255 g_type_name (signal_query.itype), name);
257 gobject = g_value_get_object (param_values + 0);
258 values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
260 /* notify the actual listeners */
261 if (ATK_IS_IMPLEMENTOR (gobject))
263 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
264 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
265 g_object_unref (G_OBJECT(aobject));
267 else if (ATK_IS_OBJECT (gobject))
269 aobject = ATK_OBJECT (gobject);
270 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
274 g_error("received property-change event from non-AtkImplementor");
277 snprintf(sbuf, APP_STATIC_BUFF_SZ, "object:%s:%s", values->property_name, "?");
278 e->type = CORBA_string_dup (sbuf);
280 e->detail1 = (unsigned long) values->old_value.data[0].v_ulong;
281 e->detail2 = (unsigned long) values->new_value.data[0].v_ulong;
283 Accessibility_Registry_notifyEvent (registry, e, &ev);
288 bridge_key_listener (AtkImplementor *atk_impl, AtkKeyEventStruct *event, gpointer data)
290 Accessibility_KeyStroke *key_event;
291 static Accessibility_DeviceEventController controller = CORBA_OBJECT_NIL;
292 if (controller == CORBA_OBJECT_NIL)
294 controller = Accessibility_Registry_getDeviceEventController (registry, &ev);
296 g_print ("bridge key listener fired!\n");
297 /* Accessibility_DeviceEventController_notifyListenersSync (controller, key_event, &ev); */
301 bridge_signal_listener (GSignalInvocationHint *signal_hint,
302 guint n_param_values,
303 const GValue *param_values,
306 Accessibility_Event *e = g_new0(Accessibility_Event, 1);
308 Bonobo_Unknown source;
309 AtkPropertyValues *values;
311 GSignalQuery signal_query;
313 char sbuf[APP_STATIC_BUFF_SZ];
315 g_signal_query (signal_hint->signal_id, &signal_query);
316 name = signal_query.signal_name;
317 #ifdef SPI_BRIDGE_DEBUG
318 fprintf (stderr, "Received signal %s:%s\n",
319 g_type_name (signal_query.itype), name);
321 gobject = g_value_get_object (param_values + 0);
323 /* notify the actual listeners */
324 if (ATK_IS_IMPLEMENTOR (gobject))
326 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
328 else if (ATK_IS_OBJECT (gobject))
330 aobject = ATK_OBJECT (gobject);
331 g_object_ref (aobject);
335 g_error("received property-change event from non-AtkImplementor");
338 snprintf(sbuf, APP_STATIC_BUFF_SZ, "%s:%s", name, g_type_name (signal_query.itype));
339 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
340 e->type = CORBA_string_dup (sbuf);
344 Accessibility_Registry_notifyEvent (registry, e, &ev);
345 g_object_unref (aobject);
349 static Accessibility_Registry bridge_get_registry ()