4 /* ---------------------------------------------------------------------------------------------------- */
6 /* The object we want to export */
7 typedef struct _MyObjectClass MyObjectClass;
8 typedef struct _MyObject MyObject;
12 GObjectClass parent_class;
17 GObject parent_instance;
30 static GType my_object_get_type (void);
31 G_DEFINE_TYPE (MyObject, my_object, G_TYPE_OBJECT);
34 my_object_finalize (GObject *object)
36 MyObject *myobj = (MyObject*)object;
40 G_OBJECT_CLASS (my_object_parent_class)->finalize (object);
44 my_object_init (MyObject *object)
51 my_object_get_property (GObject *object,
56 MyObject *myobj = (MyObject*)object;
61 g_value_set_int (value, myobj->count);
65 g_value_set_string (value, myobj->name);
69 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
74 my_object_set_property (GObject *object,
79 MyObject *myobj = (MyObject*)object;
84 myobj->count = g_value_get_int (value);
89 myobj->name = g_value_dup_string (value);
93 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
98 my_object_class_init (MyObjectClass *class)
100 GObjectClass *gobject_class = G_OBJECT_CLASS (class);
102 gobject_class->finalize = my_object_finalize;
103 gobject_class->set_property = my_object_set_property;
104 gobject_class->get_property = my_object_get_property;
106 g_object_class_install_property (gobject_class,
108 g_param_spec_int ("count",
114 g_object_class_install_property (gobject_class,
116 g_param_spec_string ("name",
123 /* A method that we want to export */
125 my_object_change_count (MyObject *myobj,
128 myobj->count = 2 * myobj->count + change;
130 g_object_notify (G_OBJECT (myobj), "count");
133 /* ---------------------------------------------------------------------------------------------------- */
135 static GDBusNodeInfo *introspection_data = NULL;
137 /* Introspection data for the service we are exporting */
138 static const gchar introspection_xml[] =
140 " <interface name='org.myorg.MyObject'>"
141 " <method name='ChangeCount'>"
142 " <arg type='i' name='change' direction='in'/>"
144 " <property type='i' name='Count' access='read'/>"
145 " <property type='s' name='Name' access='readwrite'/>"
151 handle_method_call (GDBusConnection *connection,
153 const gchar *object_path,
154 const gchar *interface_name,
155 const gchar *method_name,
156 GVariant *parameters,
157 GDBusMethodInvocation *invocation,
160 MyObject *myobj = user_data;
162 if (g_strcmp0 (method_name, "ChangeCount") == 0)
165 g_variant_get (parameters, "(i)", &change);
167 my_object_change_count (myobj, change);
169 g_dbus_method_invocation_return_value (invocation, NULL);
174 handle_get_property (GDBusConnection *connection,
176 const gchar *object_path,
177 const gchar *interface_name,
178 const gchar *property_name,
183 MyObject *myobj = user_data;
186 if (g_strcmp0 (property_name, "Count") == 0)
188 ret = g_variant_new_int32 (myobj->count);
190 else if (g_strcmp0 (property_name, "Name") == 0)
192 ret = g_variant_new_string (myobj->name ? myobj->name : "");
199 handle_set_property (GDBusConnection *connection,
201 const gchar *object_path,
202 const gchar *interface_name,
203 const gchar *property_name,
208 MyObject *myobj = user_data;
210 if (g_strcmp0 (property_name, "Count") == 0)
212 g_object_set (myobj, "count", g_variant_get_int32 (value), NULL);
214 else if (g_strcmp0 (property_name, "Name") == 0)
216 g_object_set (myobj, "name", g_variant_get_string (value, NULL), NULL);
224 static const GDBusInterfaceVTable interface_vtable =
232 send_property_change (GObject *obj,
234 GDBusConnection *connection)
236 GVariantBuilder *builder;
237 GVariantBuilder *invalidated_builder;
238 MyObject *myobj = (MyObject *)obj;
240 builder = g_variant_builder_new (G_VARIANT_TYPE_ARRAY);
241 invalidated_builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
243 if (g_strcmp0 (pspec->name, "count") == 0)
244 g_variant_builder_add (builder,
246 "Count", g_variant_new_int32 (myobj->count));
247 else if (g_strcmp0 (pspec->name, "name") == 0)
248 g_variant_builder_add (builder,
250 "Name", g_variant_new_string (myobj->name ? myobj->name : ""));
252 g_dbus_connection_emit_signal (connection,
254 "/org/myorg/MyObject",
255 "org.freedesktop.DBus.Properties",
257 g_variant_new ("(sa{sv}as)",
258 "org.myorg.MyObject",
260 invalidated_builder),
265 on_bus_acquired (GDBusConnection *connection,
269 MyObject *myobj = user_data;
270 guint registration_id;
272 g_signal_connect (myobj, "notify",
273 G_CALLBACK (send_property_change), connection);
274 registration_id = g_dbus_connection_register_object (connection,
275 "/org/myorg/MyObject",
276 introspection_data->interfaces[0],
279 NULL, /* user_data_free_func */
280 NULL); /* GError** */
281 g_assert (registration_id > 0);
285 on_name_acquired (GDBusConnection *connection,
292 on_name_lost (GDBusConnection *connection,
300 main (int argc, char *argv[])
306 /* We are lazy here - we don't want to manually provide
307 * the introspection data structures - so we just build
310 introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL);
311 g_assert (introspection_data != NULL);
313 myobj = g_object_new (my_object_get_type (), NULL);
315 owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,
316 "org.myorg.MyObject",
317 G_BUS_NAME_OWNER_FLAGS_NONE,
324 loop = g_main_loop_new (NULL, FALSE);
325 g_main_loop_run (loop);
327 g_bus_unown_name (owner_id);
329 g_dbus_node_info_unref (introspection_data);
331 g_object_unref (myobj);