2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2008, Codethink Ltd.
6 * Copyright 2001, 2002 Sun Microsystems Inc.,
7 * Copyright 2001, 2002 Ximian, Inc.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
26 #include <dbus/dbus-glib-lowlevel.h>
33 REGISTRY_APPLICATION_REMOVE = 0,
34 REGISTRY_APPLICATION_ADD = 1
37 /*---------------------------------------------------------------------------*/
39 G_DEFINE_TYPE(SpiRegistry, spi_registry, G_TYPE_OBJECT)
42 spi_registry_class_init (SpiRegistryClass *klass)
44 GObjectClass * object_class = (GObjectClass *) klass;
46 spi_registry_parent_class = g_type_class_ref (G_TYPE_OBJECT);
50 spi_registry_init (SpiRegistry *registry)
52 registry->apps = g_sequence_new (g_free);
55 /*---------------------------------------------------------------------------*/
57 static void emit_update_applications(SpiRegistry *reg, guint sigtype, const char *app)
59 DBusMessage *msg = NULL;
62 dbus_error_init (&error);
64 if ((msg = dbus_message_new_signal (SPI_DBUS_PATH_REGISTRY,
65 SPI_DBUS_INTERFACE_REGISTRY,
66 "updateApplications"))) {
67 dbus_message_append_args(msg, DBUS_TYPE_INT32, &sigtype,
68 DBUS_TYPE_STRING, &app, DBUS_TYPE_INVALID);
70 dbus_connection_send (reg->bus, msg, NULL);
72 dbus_message_unref (msg);
75 dbus_error_free (&error);
79 /*---------------------------------------------------------------------------*/
82 data_str_cmp (gpointer a, gpointer b, gpointer data)
84 return g_strcmp0(a, b);
88 seq_add_string (GSequence *seq, gchar *str)
94 iter = g_sequence_search (seq, str, (GCompareDataFunc) data_str_cmp, NULL);
95 iter = g_sequence_iter_prev (iter);
97 if (!g_sequence_iter_is_end (iter))
99 item = g_sequence_get (iter);
100 if (g_strcmp0 (item, str))
102 g_sequence_insert_sorted (seq, g_strdup(str), (GCompareDataFunc) data_str_cmp, NULL);
108 g_sequence_insert_sorted (seq, g_strdup(str), (GCompareDataFunc) data_str_cmp, NULL);
116 seq_remove_string (GSequence *seq, gchar *str)
120 gboolean res = FALSE;
122 iter = g_sequence_search (seq, str, (GCompareDataFunc) data_str_cmp, NULL);
123 iter = g_sequence_iter_prev (iter);
125 if (!g_sequence_iter_is_end (iter))
127 item = g_sequence_get (iter);
128 if (!g_strcmp0 (item, str))
130 g_sequence_remove (iter);
138 add_application (DBusConnection *bus, SpiRegistry *reg, gchar *app)
140 if (seq_add_string (reg->apps, app))
142 emit_update_applications (reg, REGISTRY_APPLICATION_ADD, app);
147 remove_application (DBusConnection *bus, SpiRegistry *reg, gchar *app)
149 if (seq_remove_string (reg->apps, app))
151 /*TODO spi_remove_device_listeners (registry->de_controller, old);*/
152 emit_update_applications (reg, REGISTRY_APPLICATION_REMOVE, app);
156 /*---------------------------------------------------------------------------*/
159 add_bus_name_cb (gpointer item, gpointer data)
161 DBusMessageIter *iter_array = (DBusMessageIter *) data;
163 dbus_message_iter_append_basic (iter_array, DBUS_TYPE_STRING, (gchar **) &item);
167 impl_getApplications (DBusConnection *bus, DBusMessage *message, void *user_data)
169 DBusMessage *reply = NULL;
170 DBusMessageIter iter, iter_array;
171 SpiRegistry *reg = SPI_REGISTRY (user_data);
173 reply = dbus_message_new_method_return (message);
175 dbus_message_iter_init_append (reply, &iter);
176 dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &iter_array);
177 g_sequence_foreach (reg->apps, add_bus_name_cb, &iter_array);
178 dbus_message_iter_close_container(&iter, &iter_array);
182 /*---------------------------------------------------------------------------*/
185 impl_registerApplication (DBusConnection *bus, DBusMessage *message, void *user_data)
188 SpiRegistry *reg = SPI_REGISTRY (user_data);
190 if (dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &app_name, DBUS_TYPE_INVALID))
191 add_application(bus, reg, app_name);
196 impl_deregisterApplication (DBusConnection *bus, DBusMessage *message, void *user_data)
199 SpiRegistry *reg = SPI_REGISTRY (user_data);
201 if (dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &app_name, DBUS_TYPE_INVALID))
202 remove_application(bus, reg, app_name);
206 /*---------------------------------------------------------------------------*/
209 handle_disconnection (DBusConnection *bus, DBusMessage *message, void *user_data)
211 char *name, *old, *new;
212 SpiRegistry *reg = SPI_REGISTRY (user_data);
214 if (dbus_message_get_args (message, NULL,
215 DBUS_TYPE_STRING, &name,
216 DBUS_TYPE_STRING, &old,
217 DBUS_TYPE_STRING, &new,
220 if (*old != '\0' && *new == '\0')
222 remove_application(bus, reg, old);
227 /*---------------------------------------------------------------------------*/
229 static DBusHandlerResult
230 signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data)
232 SpiRegistry *registry = SPI_REGISTRY (user_data);
233 guint res = DBUS_HANDLER_RESULT_HANDLED;
234 const char *iface = dbus_message_get_interface (message);
235 const char *member = dbus_message_get_member (message);
237 if (!g_strcmp0(iface, DBUS_INTERFACE_DBUS) && !g_strcmp0(member, "NameOwnerChanged"))
238 handle_disconnection (bus, message, user_data);
240 res = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
245 /*---------------------------------------------------------------------------*/
247 static gchar *app_sig_match_name_owner =
248 "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged'";
250 static DRouteMethod dev_methods[] =
252 { impl_getApplications, "getApplications" },
253 { impl_registerApplication, "registerApplication" },
254 { impl_deregisterApplication, "deregisterApplication" },
259 spi_registry_new (DBusConnection *bus, DRouteContext *droute)
261 SpiRegistry *reg = g_object_new (SPI_REGISTRY_TYPE, NULL);
266 dbus_bus_add_match (bus, app_sig_match_name_owner, NULL);
267 dbus_connection_add_filter (bus, signal_filter, reg, NULL);
269 path = droute_add_one (droute,
270 SPI_DBUS_PATH_REGISTRY,
273 droute_path_add_interface (path,
274 SPI_DBUS_INTERFACE_REGISTRY,
281 /*END------------------------------------------------------------------------*/