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 APP_STATIC_BUFF_SZ 64
35 typedef struct _ArgStruct ArgStruct;
42 static CORBA_Environment ev;
43 static Accessibility_Registry registry;
44 static SpiApplication *this_app;
46 static gboolean bridge_register_app (gpointer p);
47 static void bridge_focus_tracker (AtkObject *object);
48 static void bridge_exit_func(void);
49 static gboolean bridge_register_event_listener ();
50 static void register_atk_event_listeners();
51 static gboolean bridge_property_event_listener (GSignalInvocationHint *signal_hint,
53 const GValue *param_values,
55 static gboolean bridge_signal_listener (GSignalInvocationHint *signal_hint,
57 const GValue *param_values,
61 gtk_module_init(gint *argc, gchar **argv[])
63 ArgStruct *args = (ArgStruct *) g_new0(ArgStruct, 1);
66 g_idle_add (bridge_register_app, args);
67 g_atexit (bridge_exit_func);
71 bridge_register_app (gpointer gp)
76 ArgStruct *args = (ArgStruct *)gp;
78 CORBA_exception_init(&ev);
80 if (!bonobo_init (&(args->c), args->v))
82 g_error ("Could not initialize Bonobo");
85 /* Create the accesssible application server object */
86 this_app = spi_application_new(atk_get_root ());
88 obj_id = "OAFIID:Accessibility_Registry:proto0.1";
90 oclient = bonobo_activation_activate_from_id (obj_id, 0, NULL, &ev);
91 if (ev._major != CORBA_NO_EXCEPTION) {
93 ("Accessibility app error: exception during registry activation from id: %s\n"),
94 CORBA_exception_id(&ev));
95 CORBA_exception_free(&ev);
99 if (CORBA_Object_is_nil (oclient, &ev))
101 g_error ("Could not locate registry");
104 registry = (Accessibility_Registry) oclient;
106 fprintf(stderr, "About to register application\n");
110 Accessibility_Registry_registerApplication (registry,
111 CORBA_Object_duplicate (BONOBO_OBJREF (this_app), &ev),
114 register_atk_event_listeners ();
120 register_atk_event_listeners ()
122 /* Register for focus event notifications, and register app with central registry */
124 /* kludge to make sure the Atk interface types are registered, otherwise
125 the AtkText signal handlers below won't get registered */
129 atk_add_focus_tracker (bridge_focus_tracker);
130 atk_add_global_event_listener (bridge_property_event_listener, "Gtk:AtkObject:property-change");
131 /* atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkObject:children-changed");
132 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-changed");
133 atk_add_global_event_listener (bridge_signal_listener, "Gtk:AtkText:text-caret-moved");*/
136 static void bridge_exit_func()
138 fprintf (stderr, "exiting bridge\n");
139 Accessibility_Registry_deregisterApplication (registry,
140 CORBA_Object_duplicate (BONOBO_OBJREF (this_app), &ev),
142 fprintf (stderr, "bridge exit func complete.\n");
145 static void bridge_focus_tracker (AtkObject *object)
147 Accessibility_Event *e = Accessibility_Event__alloc();
148 e->type = CORBA_string_dup ("focus:");
149 e->source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (object)), &ev);
152 Accessibility_Registry_notifyEvent (registry, e, &ev);
156 bridge_property_event_listener (GSignalInvocationHint *signal_hint,
157 guint n_param_values,
158 const GValue *param_values,
161 Accessibility_Event *e = Accessibility_Event__alloc();
162 Bonobo_Unknown source = NULL;
164 AtkPropertyValues *values;
166 GSignalQuery signal_query;
168 char sbuf[APP_STATIC_BUFF_SZ];
170 g_signal_query (signal_hint->signal_id, &signal_query);
171 name = signal_query.signal_name;
172 #ifdef SPI_BRIDGE_DEBUG
173 fprintf (stderr, "Received (property) signal %s:%s\n",
174 g_type_name (signal_query.itype), name);
176 gobject = g_value_get_object (param_values + 0);
177 values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
179 /* notify the actual listeners */
180 if (ATK_IS_IMPLEMENTOR (gobject))
182 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
183 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
184 g_object_unref (G_OBJECT(aobject));
186 else if (ATK_IS_OBJECT (gobject))
188 aobject = ATK_OBJECT (gobject);
189 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
193 g_error("received property-change event from non-AtkImplementor");
196 snprintf(sbuf, APP_STATIC_BUFF_SZ, "object:property-change:%s", values->property_name);
197 e->type = CORBA_string_dup (sbuf);
202 Accessibility_Registry_notifyEvent (registry, e, &ev);
207 bridge_signal_listener (GSignalInvocationHint *signal_hint,
208 guint n_param_values,
209 const GValue *param_values,
212 Accessibility_Event *e = g_new0(Accessibility_Event, 1);
214 Bonobo_Unknown source;
215 AtkPropertyValues *values;
217 GSignalQuery signal_query;
219 char sbuf[APP_STATIC_BUFF_SZ];
221 g_signal_query (signal_hint->signal_id, &signal_query);
222 name = signal_query.signal_name;
223 #ifdef SPI_BRIDGE_DEBUG
224 fprintf (stderr, "Received (property) signal %s:%s\n",
225 g_type_name (signal_query.itype), name);
227 gobject = g_value_get_object (param_values + 0);
229 /* notify the actual listeners */
230 if (ATK_IS_IMPLEMENTOR (gobject))
232 aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
234 else if (ATK_IS_OBJECT (gobject))
236 aobject = ATK_OBJECT (gobject);
237 g_object_ref (aobject);
241 g_error("received property-change event from non-AtkImplementor");
244 snprintf(sbuf, APP_STATIC_BUFF_SZ, "%s:%s", name, g_type_name (signal_query.itype));
245 source = CORBA_Object_duplicate (BONOBO_OBJREF (spi_accessible_new (aobject)), &ev);
246 e->type = CORBA_string_dup (sbuf);
250 Accessibility_Registry_notifyEvent (registry, e, &ev);
251 g_object_unref (aobject);
255 static Accessibility_Registry bridge_get_registry ()