gio/gdbusobjectproxy.c

   1 /* GDBus - GLib D-Bus Library
   2  *
   3  * Copyright (C) 2008-2010 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: David Zeuthen <davidz@redhat.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include "gdbusobject.h"
  26 #include "gdbusobjectproxy.h"
  27 #include "gdbusconnection.h"
  28 #include "gdbusprivate.h"
  29 #include "gdbusutils.h"
  30 #include "gdbusproxy.h"
  31
  32 #include "glibintl.h"
  33
  34 /**
  35  * SECTION:gdbusobjectproxy
  36  * @short_description: Client-side D-Bus object
  37  * @include: gio/gio.h
  38  *
  39  * A #GDBusObjectProxy is an object used to represent a remote object
  40  * with one or more D-Bus interfaces. Normally, you don't instantiate
  41  * a #GDBusObjectProxy yourself - typically #GDBusObjectManagerClient
  42  * is used to obtain it.
  43  *
  44  * Since: 2.30
  45  */
  46
  47 struct _GDBusObjectProxyPrivate
  48 {
  49   GHashTable *map_name_to_iface;
  50   gchar *object_path;
  51   GDBusConnection *connection;
  52 };
  53
  54 enum
  55 {
  56   PROP_0,
  57   PROP_OBJECT_PATH,
  58   PROP_CONNECTION
  59 };
  60
  61 static void dbus_object_interface_init (GDBusObjectIface *iface);
  62
  63 G_DEFINE_TYPE_WITH_CODE (GDBusObjectProxy, g_dbus_object_proxy, G_TYPE_OBJECT,
  64                          G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_OBJECT, dbus_object_interface_init));
  65
  66 static void
  67 g_dbus_object_proxy_finalize (GObject *object)
  68 {
  69   GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);
  70
  71   g_hash_table_unref (proxy->priv->map_name_to_iface);
  72
  73   if (G_OBJECT_CLASS (g_dbus_object_proxy_parent_class)->finalize != NULL)
  74     G_OBJECT_CLASS (g_dbus_object_proxy_parent_class)->finalize (object);
  75 }
  76
  77 static void
  78 g_dbus_object_proxy_get_property (GObject    *object,
  79                                   guint       prop_id,
  80                                   GValue     *value,
  81                                   GParamSpec *pspec)
  82 {
  83   GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);
  84
  85   switch (prop_id)
  86     {
  87     case PROP_OBJECT_PATH:
  88       g_value_set_string (value, proxy->priv->object_path);
  89       break;
  90
  91     case PROP_CONNECTION:
  92       g_value_set_object (value, g_dbus_object_proxy_get_connection (proxy));
  93       break;
  94
  95     default:
  96       G_OBJECT_WARN_INVALID_PROPERTY_ID (_object, prop_id, pspec);
  97       break;
  98     }
  99 }
 100
 101 static void
 102 g_dbus_object_proxy_set_property (GObject       *object,
 103                                   guint          prop_id,
 104                                   const GValue  *value,
 105                                   GParamSpec    *pspec)
 106 {
 107   GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);
 108
 109   switch (prop_id)
 110     {
 111     case PROP_OBJECT_PATH:
 112       proxy->priv->object_path = g_value_dup_string (value);
 113       break;
 114
 115     case PROP_CONNECTION:
 116       proxy->priv->connection = g_value_dup_object (value);
 117       break;
 118
 119     default:
 120       G_OBJECT_WARN_INVALID_PROPERTY_ID (_object, prop_id, pspec);
 121       break;
 122     }
 123 }
 124
 125 static void
 126 g_dbus_object_proxy_class_init (GDBusObjectProxyClass *klass)
 127 {
 128   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 129
 130   gobject_class->finalize     = g_dbus_object_proxy_finalize;
 131   gobject_class->set_property = g_dbus_object_proxy_set_property;
 132   gobject_class->get_property = g_dbus_object_proxy_get_property;
 133
 134   /**
 135    * GDBusObjectProxy:object-path:
 136    *
 137    * The object path of the proxy.
 138    *
 139    * Since: 2.30
 140    */
 141   g_object_class_install_property (gobject_class,
 142                                    PROP_OBJECT_PATH,
 143                                    g_param_spec_string ("object-path",
 144                                                         "Object Path",
 145                                                         "The object path of the proxy",
 146                                                         NULL,
 147                                                         G_PARAM_READWRITE |
 148                                                         G_PARAM_CONSTRUCT_ONLY |
 149                                                         G_PARAM_STATIC_STRINGS));
 150
 151   /**
 152    * GDBusObjectProxy:connection:
 153    *
 154    * The connection of the proxy.
 155    *
 156    * Since: 2.30
 157    */
 158   g_object_class_install_property (gobject_class,
 159                                    PROP_CONNECTION,
 160                                    g_param_spec_object ("connection",
 161                                                         "Connection",
 162                                                         "The connection of the proxy",
 163                                                         G_TYPE_DBUS_CONNECTION,
 164                                                         G_PARAM_READWRITE |
 165                                                         G_PARAM_CONSTRUCT_ONLY |
 166                                                         G_PARAM_STATIC_STRINGS));
 167
 168   g_type_class_add_private (klass, sizeof (GDBusObjectProxyPrivate));
 169 }
 170
 171 static void
 172 g_dbus_object_proxy_init (GDBusObjectProxy *proxy)
 173 {
 174   proxy->priv = G_TYPE_INSTANCE_GET_PRIVATE (proxy,
 175                                              G_TYPE_DBUS_OBJECT_PROXY,
 176                                              GDBusObjectProxyPrivate);
 177   proxy->priv->map_name_to_iface = g_hash_table_new_full (g_str_hash,
 178                                                           g_str_equal,
 179                                                           g_free,
 180                                                           (GDestroyNotify) g_object_unref);
 181 }
 182
 183 static const gchar *
 184 g_dbus_object_proxy_get_object_path (GDBusObject *object)
 185 {
 186   GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);
 187   return proxy->priv->object_path;
 188 }
 189
 190 /**
 191  * g_dbus_object_proxy_get_connection:
 192  * @proxy: a #GDBusObjectProxy
 193  *
 194  * Gets the connection that @proxy is for.
 195  *
 196  * Returns: (transfer none): A #GDBusConnection. Do not free, the
 197  *   object is owned by @proxy.
 198  *
 199  * Since: 2.30
 200  */
 201 GDBusConnection *
 202 g_dbus_object_proxy_get_connection (GDBusObjectProxy *proxy)
 203 {
 204   g_return_val_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy), NULL);
 205   return proxy->priv->connection;
 206 }
 207
 208 static GDBusInterface *
 209 g_dbus_object_proxy_get_interface (GDBusObject *object,
 210                                    const gchar *interface_name)
 211 {
 212   GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);
 213   GDBusProxy *ret;
 214
 215   g_return_val_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy), NULL);
 216   g_return_val_if_fail (g_dbus_is_interface_name (interface_name), NULL);
 217
 218   ret = g_hash_table_lookup (proxy->priv->map_name_to_iface, interface_name);
 219   if (ret != NULL)
 220     g_object_ref (ret);
 221   return (GDBusInterface *) ret; /* TODO: proper cast */
 222 }
 223
 224 static GList *
 225 g_dbus_object_proxy_get_interfaces (GDBusObject *object)
 226 {
 227   GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);
 228   GList *ret;
 229   GHashTableIter iter;
 230   GDBusProxy *interface_proxy;
 231
 232   g_return_val_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy), NULL);
 233
 234   ret = NULL;
 235
 236   g_hash_table_iter_init (&iter, proxy->priv->map_name_to_iface);
 237   while (g_hash_table_iter_next (&iter, NULL, (gpointer) &interface_proxy))
 238     ret = g_list_prepend (ret, g_object_ref (interface_proxy));
 239
 240   return ret;
 241 }
 242
 243 /* ---------------------------------------------------------------------------------------------------- */
 244
 245 /**
 246  * g_dbus_object_proxy_new:
 247  * @connection: a #GDBusConnection
 248  * @object_path: the object path
 249  *
 250  * Creates a new #GDBusObjectProxy for the given connection and
 251  * object path.
 252  *
 253  * Returns: a new #GDBusObjectProxy
 254  *
 255  * Since: 2.30
 256  */
 257 GDBusObjectProxy *
 258 g_dbus_object_proxy_new (GDBusConnection *connection,
 259                          const gchar     *object_path)
 260 {
 261   g_return_val_if_fail (G_IS_DBUS_CONNECTION (connection), NULL);
 262   g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
 263   return G_DBUS_OBJECT_PROXY (g_object_new (G_TYPE_DBUS_OBJECT_PROXY,
 264                                             "object-path", object_path,
 265                                             "connection", connection,
 266                                             NULL));
 267 }
 268
 269 void
 270 _g_dbus_object_proxy_add_interface (GDBusObjectProxy *proxy,
 271                                     GDBusProxy       *interface_proxy)
 272 {
 273   const gchar *interface_name;
 274
 275   g_return_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy));
 276   g_return_if_fail (G_IS_DBUS_PROXY (interface_proxy));
 277
 278   interface_name = g_dbus_proxy_get_interface_name (interface_proxy);
 279   _g_dbus_object_proxy_remove_interface (proxy, interface_name);
 280   g_hash_table_insert (proxy->priv->map_name_to_iface,
 281                        g_strdup (interface_name),
 282                        g_object_ref (interface_proxy));
 283   g_signal_emit_by_name (proxy, "interface-added", interface_proxy);
 284 }
 285
 286 void
 287 _g_dbus_object_proxy_remove_interface (GDBusObjectProxy *proxy,
 288                                        const gchar      *interface_name)
 289 {
 290   GDBusProxy *interface_proxy;
 291
 292   g_return_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy));
 293   g_return_if_fail (g_dbus_is_interface_name (interface_name));
 294
 295   interface_proxy = g_hash_table_lookup (proxy->priv->map_name_to_iface, interface_name);
 296   if (interface_proxy != NULL)
 297     {
 298       g_object_ref (interface_proxy);
 299       g_warn_if_fail (g_hash_table_remove (proxy->priv->map_name_to_iface, interface_name));
 300       g_signal_emit_by_name (proxy, "interface-removed", interface_proxy);
 301       g_object_unref (interface_proxy);
 302     }
 303 }
 304
 305 static void
 306 dbus_object_interface_init (GDBusObjectIface *iface)
 307 {
 308   iface->get_object_path       = g_dbus_object_proxy_get_object_path;
 309   iface->get_interfaces        = g_dbus_object_proxy_get_interfaces;
 310   iface->get_interface         = g_dbus_object_proxy_get_interface;
 311 }