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 <libspi/Accessibility.h>
30 #include "accessible.h"
31 #include "application.h"
33 #define SPI_BRIDGE_DEBUG 1
35 #define APP_STATIC_BUFF_SZ 64
37 typedef struct _ArgStruct ArgStruct;
44 static CORBA_Environment ev;
45 static Accessibility_Registry registry;
46 static SpiApplication *this_app;
48 static gboolean bridge_register_app (gpointer p);
49 static void bridge_focus_tracker (AtkObject *object);
50 static void bridge_exit_func(void);
51 static gboolean bridge_register_event_listener ();
52 static void register_atk_event_listeners();
53 static gboolean bridge_property_event_listener (GSignalInvocationHint *signal_hint,
55 const GValue *param_values,
57 static gboolean bridge_signal_listener (GSignalInvocationHint *signal_hint,
59 const GValue *param_values,
62 static gint bridge_key_listener (AtkImplementor *atk_impl,
63 AtkKeyEventStruct *event,
67 gtk_module_init(gint *argc, gchar **argv[])
69 ArgStruct *args = (ArgStruct *) g_new0(ArgStruct, 1);
72 g_idle_add (bridge_register_app, args);
73 g_atexit (bridge_exit_func);
77 bridge_register_app (gpointer gp)
82 ArgStruct *args = (ArgStruct *)gp;
84 CORBA_exception_init(&ev);
86 if (!bonobo_init (&(args->c), args->v))
88 g_error ("Could not initialize Bonobo");
91 /* Create the accesssible application server object */
92 this_app = spi_application_new(atk_get_root ());
94 obj_id = "OAFIID:Accessibility_Registry:proto0.1";
96 oclient = bonobo_activation_activate_from_id (obj_id, 0, NULL, &ev);
97 if (ev._major != CORBA_NO_EXCEPTION) {
99 ("Accessibility app error: exception during registry activation from id: %s\n"),
100 CORBA_exception_id(&ev));
101 CORBA_exception_free(&ev);
105 if (CORBA_Object_is_nil (oclient, &ev))
107 g_error ("Could not locate registry");
110 registry = (Accessibility_Registry) oclient;
112 fprintf(stderr, "About to register application\n");
116 Accessibility_Registry_registerApplication (registry,
117 CORBA_Object_duplicate (BONOBO_OBJREF (this_app), &ev),
120 register_atk_event_listeners ();
126 register_atk_event_listeners ()
128 /* Register for focus event notifications, and register app with central registry */
130 /* kludge to make sure the Atk interface types are registered, otherwise
131 the AtkText signal handlers below won't get registered */
135 atk_add_focus_tracker (bridge_focus_tracker);
136 atk_add_global_event_listener (bridge_property_event_listener, "Gtk:AtkObject:property-change");
137 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:children-changed");
138 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:model-changed");
139 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:selection-changed");
140 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:visible-data-changed");
141 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-changed");
142 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-caret-moved");
143 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-inserted");
144 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-reordered");
145 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:row-deleted");
146 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-inserted");
147 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-reordered");
148 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkTable:column-deleted");
149 atk_add_key_event_listener (bridge_key_listener, NULL);
152 static void bridge_exit_func()
154 fprintf (stderr, "exiting bridge\n");
155 Accessibility_Registry_deregisterApplication (registry,
156 CORBA_Object_duplicate (BONOBO_OBJREF (this_app), &ev),
158 fprintf (stderr, "bridge exit func complete.\n");
161 static void bridge_focus_tracker (AtkObject *object)
163 Accessibility_Event *e = Accessibility_Event__alloc();
164 e->type = CORBA_string_dup ("focus:");
165 e->source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (object)), &ev);
168 Accessibility_Registry_notifyEvent (registry, e, &ev);
172 bridge_property_event_listener (GSignalInvocationHint *signal_hint,
173 guint n_param_values,
174 const GValue *param_values,
177 Accessibility_Event *e = Accessibility_Event__alloc();
178 Bonobo_Unknown source = NULL;
180 AtkPropertyValues *values;
182 GSignalQuery signal_query;
184 char sbuf[APP_STATIC_BUFF_SZ];
186 g_signal_query (signal_hint->signal_id, &signal_query);
187 name = signal_query.signal_name;
188 #ifdef SPI_BRIDGE_DEBUG
189 fprintf (stderr, "Received (property) signal %s:%s\n",
190 g_type_name (signal_query.itype), name);
192 gobject = g_value_get_object (param_values + 0);
193 values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
195 /* notify the actual listeners */
196 if (ATK_IS_IMPLEMENTOR (gobject))
198 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
199 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
200 g_object_unref (G_OBJECT(aobject));
202 else if (ATK_IS_OBJECT (gobject))
204 aobject = ATK_OBJECT (gobject);
205 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
209 g_error("received property-change event from non-AtkImplementor");
212 snprintf(sbuf, APP_STATIC_BUFF_SZ, "object:property-change:%s", values->property_name);
213 e->type = CORBA_string_dup (sbuf);
218 Accessibility_Registry_notifyEvent (registry, e, &ev);
223 bridge_key_listener (AtkImplementor *atk_impl, AtkKeyEventStruct *event, gpointer data)
225 g_print ("bridge key listener!\n");
229 bridge_signal_listener (GSignalInvocationHint *signal_hint,
230 guint n_param_values,
231 const GValue *param_values,
234 Accessibility_Event *e = g_new0(Accessibility_Event, 1);
236 Bonobo_Unknown source;
237 AtkPropertyValues *values;
239 GSignalQuery signal_query;
241 char sbuf[APP_STATIC_BUFF_SZ];
243 g_signal_query (signal_hint->signal_id, &signal_query);
244 name = signal_query.signal_name;
245 #ifdef SPI_BRIDGE_DEBUG
246 fprintf (stderr, "Received (property) signal %s:%s\n",
247 g_type_name (signal_query.itype), name);
249 gobject = g_value_get_object (param_values + 0);
251 /* notify the actual listeners */
252 if (ATK_IS_IMPLEMENTOR (gobject))
254 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
256 else if (ATK_IS_OBJECT (gobject))
258 aobject = ATK_OBJECT (gobject);
259 g_object_ref (aobject);
263 g_error("received property-change event from non-AtkImplementor");
266 snprintf(sbuf, APP_STATIC_BUFF_SZ, "%s:%s", name, g_type_name (signal_query.itype));
267 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
268 e->type = CORBA_string_dup (sbuf);
272 Accessibility_Registry_notifyEvent (registry, e, &ev);
273 g_object_unref (aobject);
277 static Accessibility_Registry bridge_get_registry ()