src/mm-dbus-manager.c

   1 /* MManager - a Desktop wide manager for multimedia applications.
   2  *
   3  * Copyright (C) 2008 Cosimo Cecchi <cosimoc@gnome.org>
   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 Public
  16  * 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
  21 #include <glib.h>
  22 #include <glib-object.h>
  23 #include <dbus/dbus-glib.h>
  24 #include <dbus/dbus-glib-bindings.h>
  25 #include "mm-dbus-manager.h"
  26
  27 gboolean server_register_app (MMDBusManager *manager, char *path, GError **error);
  28
  29 #include "mm-dbus-manager-server-bindings.h"
  30
  31 #define MM_DBUS_MANAGER_GET_PRIVATE(o) \
  32   (G_TYPE_INSTANCE_GET_PRIVATE ((o), MM_TYPE_DBUS_MANAGER, MMDBusManagerDetails))
  33
  34 /* FIXME: move this to a separate helper program, so that the manager can
  35  * be a real session singleton.
  36  */
  37
  38 struct _MMDBusManagerDetails {
  39   GPtrArray *application_paths;
  40 };
  41
  42 static MMDBusManager *dbus_manager = NULL;
  43
  44 G_DEFINE_TYPE (MMDBusManager, mm_dbus_manager, G_TYPE_OBJECT);
  45
  46 static void
  47 mm_dbus_manager_finalize (GObject *o)
  48 {
  49   //MMDBusManager *m = MM_DBUS_MANAGER (o);
  50
  51   G_OBJECT_CLASS (mm_dbus_manager_parent_class)->finalize (o);
  52 }
  53
  54 static void
  55 mm_dbus_manager_class_init (MMDBusManagerClass *klass)
  56 {
  57   GObjectClass *object_class = G_OBJECT_CLASS (klass);
  58   GError *error = NULL;
  59
  60   object_class->finalize = mm_dbus_manager_finalize;
  61
  62   /* get a connection to the session bus */
  63   klass->connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
  64   if (!klass->connection) {
  65     g_warning ("Unable to connect to the session bus: %s", error->message);
  66     g_error_free (error);
  67   } else {
  68     dbus_g_object_type_install_info (MM_TYPE_DBUS_MANAGER,
  69                                      &dbus_glib_mm_dbus_manager_object_info);
  70   }
  71
  72   g_type_class_add_private (klass, sizeof (MMDBusManagerDetails));
  73 }
  74
  75 static void
  76 register_on_the_bus (MMDBusManager *manager)
  77 {
  78   GError *error = NULL;
  79   DBusGProxy *driver_proxy;
  80   guint request_ret;
  81   MMDBusManagerClass *klass = MM_DBUS_MANAGER_GET_CLASS (manager);
  82
  83   /* register the object */
  84   dbus_g_connection_register_g_object (klass->connection,
  85                                        "/org/gnome/MediaManager",
  86                                        G_OBJECT (manager));
  87   /* register the service name */
  88   driver_proxy = dbus_g_proxy_new_for_name (klass->connection,
  89                                             DBUS_SERVICE_DBUS,
  90                                             DBUS_PATH_DBUS,
  91                                             DBUS_INTERFACE_DBUS);
  92   if (!org_freedesktop_DBus_request_name (driver_proxy,
  93                                           "org.gnome.MediaManager",
  94                                           DBUS_NAME_FLAG_DO_NOT_QUEUE,
  95                                           &request_ret,
  96                                           &error)) {
  97     g_warning ("RequestName failed: %s", error->message);
  98     g_error_free (error);
  99   }
 100
 101   g_object_unref (driver_proxy);
 102 }
 103
 104 static void
 105 mm_dbus_manager_init (MMDBusManager *manager)
 106 {
 107   MMDBusManagerDetails *details = manager->details = MM_DBUS_MANAGER_GET_PRIVATE (manager);
 108
 109   details->application_paths = g_ptr_array_new ();
 110   register_on_the_bus (manager);
 111 }
 112
 113 /* implementation of dbus methods */
 114
 115 gboolean
 116 server_register_app (MMDBusManager *manager, char *path, GError **error)
 117 {
 118   if (!path) {
 119     /* set the error, the path can't be NULL */
 120     g_set_error (error, MM_DBUS_ERROR_QUARK,
 121                  MM_DBUS_ERROR_NULL_PATH,
 122                  "Error: can't register an app with NULL path");
 123     return FALSE;
 124   }
 125
 126   g_ptr_array_add (manager->details->application_paths,
 127                    g_strdup (path));
 128   return TRUE;
 129 }
 130
 131 /* public methods */
 132
 133 MMDBusManager *
 134 mm_dbus_manager_get (void)
 135 {
 136   if (!dbus_manager) {
 137     dbus_manager = g_object_new (MM_TYPE_DBUS_MANAGER, NULL);
 138   }
 139   return dbus_manager;
 140 }