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 <stdlib.h>
  22 #include <glib.h>
  23 #include <glib-object.h>
  24 #include <dbus/dbus-glib.h>
  25 #include <dbus/dbus-glib-bindings.h>
  26 #include "mm-dbus-manager.h"
  27 #include "mm-dbus-manager-type-builtins.h"
  28
  29 gboolean mm_dbus_manager_register_app (MMDBusManager *manager, char *path, GError **error);
  30 gboolean mm_dbus_manager_get_registered_apps (MMDBusManager *manager, char ***app_paths,
  31                                               GError **error);
  32
  33 #include "mm-dbus-manager-server-bindings.h"
  34
  35 #define MM_DBUS_MANAGER_GET_PRIVATE(o) \
  36   (G_TYPE_INSTANCE_GET_PRIVATE ((o), MM_TYPE_DBUS_MANAGER, MMDBusManagerDetails))
  37
  38 struct _MMDBusManagerDetails {
  39   GPtrArray       *application_paths;
  40   DBusGProxy      *bus_proxy;
  41   DBusGConnection *connection;
  42 };
  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_ptr_array_foreach (m->details->application_paths,
  52                        (GFunc) g_free,
  53                        NULL);
  54   g_ptr_array_free (m->details->application_paths, TRUE);
  55
  56   G_OBJECT_CLASS (mm_dbus_manager_parent_class)->finalize (o);
  57 }
  58
  59 static void
  60 mm_dbus_manager_class_init (MMDBusManagerClass *klass)
  61 {
  62   GObjectClass *object_class = G_OBJECT_CLASS (klass);
  63
  64   object_class->finalize = mm_dbus_manager_finalize;
  65
  66   dbus_g_object_type_install_info (MM_TYPE_DBUS_MANAGER,
  67                                    &dbus_glib_mm_dbus_manager_object_info);
  68   dbus_g_error_domain_register (MM_DBUS_ERROR_QUARK, NULL, MM_TYPE_MD_BUS_ERROR_ENUM);
  69
  70   g_type_class_add_private (klass, sizeof (MMDBusManagerDetails));
  71 }
  72
  73 static void
  74 register_on_the_bus (MMDBusManager *manager)
  75 {
  76   GError *error = NULL;
  77   MMDBusManagerDetails *details = manager->details;
  78
  79   details->connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
  80   if (!details->connection) {
  81     g_critical ("Error getting a connection to the session bus: %s",
  82                 error->message);
  83     g_error_free (error);
  84     exit (1);
  85   }
  86
  87   details->bus_proxy = dbus_g_proxy_new_for_name (details->connection,
  88                                                   DBUS_SERVICE_DBUS,
  89                                                   DBUS_PATH_DBUS,
  90                                                   DBUS_INTERFACE_DBUS);
  91
  92   /* register the object */
  93   dbus_g_connection_register_g_object (details->connection,
  94                                        MM_DBUS_MANAGER_PATH,
  95                                        G_OBJECT (manager));
  96 }
  97
  98 static void
  99 mm_dbus_manager_init (MMDBusManager *manager)
 100 {
 101   MMDBusManagerDetails *details = manager->details = MM_DBUS_MANAGER_GET_PRIVATE (manager);
 102
 103   details->application_paths = g_ptr_array_new ();
 104   register_on_the_bus (manager);
 105 }
 106
 107 /* implementation of dbus methods */
 108
 109 gboolean
 110 mm_dbus_manager_register_app (MMDBusManager *manager, char *path, GError **error)
 111 {
 112   g_return_val_if_fail (MM_IS_DBUS_MANAGER (manager), FALSE);
 113
 114   if (path == NULL) {
 115     /* set the error, the path can't be NULL */
 116     g_set_error (error, MM_DBUS_ERROR_QUARK,
 117                  MM_DBUS_ERROR_NULL_PATH,
 118                  "Error: can't register an app with NULL path");
 119     return FALSE;
 120   }
 121
 122   g_ptr_array_add (manager->details->application_paths,
 123                    g_strdup (path));
 124   return TRUE;
 125 }
 126
 127 gboolean
 128 mm_dbus_manager_get_registered_apps (MMDBusManager *manager,
 129                                      char ***app_paths,
 130                                      GError **error)
 131 {
 132   int index;
 133   int size = manager->details->application_paths->len;
 134   g_return_val_if_fail (MM_IS_DBUS_MANAGER (manager), FALSE);
 135
 136   if (app_paths == NULL) {
 137    return FALSE;
 138   }
 139
 140   *app_paths = g_new (gchar *, size + 1);
 141   (*app_paths) [size] = NULL;
 142
 143   for (index = 0; index < size; index++) {
 144     (*app_paths) [index] =
 145       g_strdup (g_ptr_array_index (manager->details->application_paths, index));
 146   }
 147
 148   return TRUE;
 149 }