src/mm-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-object.h>
  22 #include <glib.h>
  23 #include <dbus/dbus-glib.h>
  24 #include "mm-application.h"
  25 #include "mm-dbus-application.h"
  26
  27 #include "mm-manager.h"
  28
  29 G_DEFINE_TYPE (MMManager, mm_manager, G_TYPE_OBJECT);
  30
  31 #define MM_MANAGER_GET_PRIVATE(o) \
  32    (G_TYPE_INSTANCE_GET_PRIVATE ((o), MM_TYPE_MANAGER, MMManagerDetails))
  33
  34 MMManager* mm_manager_singleton = NULL;
  35
  36 struct _MMManagerDetails {
  37   MMModuleManager *module_manager;
  38   GHashTable *applications;
  39 };
  40
  41 static void
  42 mm_manager_finalize (GObject *o)
  43 {
  44   MMManager *manager = MM_MANAGER (o);
  45
  46   g_hash_table_destroy (manager->details->applications);
  47
  48   G_OBJECT_CLASS (mm_manager_parent_class)->finalize (o);
  49 }
  50
  51 static void
  52 mm_manager_class_init (MMManagerClass *klass)
  53 {
  54   G_OBJECT_CLASS (klass)->finalize = mm_manager_finalize;
  55
  56   g_type_class_add_private (klass, sizeof (MMManagerDetails));
  57 }
  58
  59 static void
  60 insert_dbus_application (GHashTable *applications,
  61                          DBusGConnection *connection,
  62                          const char *name,
  63                          const char *path)
  64 {
  65   DBusGProxy *app_proxy;
  66   guint supported_type;
  67   char *desktop_id = NULL;
  68   gboolean res;
  69   MMApplication *app;
  70   GError *error = NULL;
  71
  72   app_proxy = dbus_g_proxy_new_for_name (connection,
  73                                          name, path,
  74                                          "org.gnome.MediaManager.Application");
  75   res = dbus_g_proxy_call (app_proxy,
  76                            "GetApplicationInfo",
  77                            &error,
  78                            G_TYPE_INVALID,
  79                            G_TYPE_UINT,
  80                            &supported_type,
  81                            G_TYPE_STRING,
  82                            &desktop_id,
  83                            G_TYPE_INVALID);
  84   if (!res) {
  85     g_warning ("Unable to get application info for the app at path %s: %s", path,
  86                error->message);
  87     g_object_unref (app_proxy);
  88     g_error_free (error);
  89     return;
  90   }
  91
  92   app = mm_dbus_application_new (desktop_id, supported_type,
  93                                  name, path);
  94   g_hash_table_insert (applications,
  95                        g_strdup (name), /* key   */
  96                        app);            /* value */
  97   g_free (desktop_id);
  98   g_object_unref (app_proxy);
  99 }
 100
 101 static void
 102 insert_dbus_applications (GHashTable *applications)
 103 {
 104   DBusGConnection *connection;
 105   DBusGProxy *dbus_manager_proxy;
 106   GError *error = NULL;
 107   gboolean res;
 108   char **registered_names = NULL;
 109   char **registered_paths = NULL;
 110   int idx, total_apps;
 111
 112   connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
 113   if (error) {
 114     g_warning ("Error while connecting to the session bus: %s", error->message);
 115     g_error_free (error);
 116     return;
 117   }
 118
 119   dbus_manager_proxy = dbus_g_proxy_new_for_name (connection,
 120                                                   "org.gnome.MediaManager.Manager",
 121                                                   "/org/gnome/MediaManager/Manager",
 122                                                   "org.gnome.MediaManager.Manager");
 123   res = dbus_g_proxy_call (dbus_manager_proxy,
 124                            "GetRegisteredApps",
 125                            &error,
 126                            G_TYPE_INVALID,
 127                            G_TYPE_STRV,
 128                            &registered_names,
 129                            G_TYPE_STRV,
 130                            &registered_paths,
 131                            G_TYPE_INVALID);
 132   if (!res) {
 133     g_warning ("Error while calling GetRegisteredApps on the dbus manager: %s",
 134                error->message);
 135     g_object_unref (dbus_manager_proxy);
 136     g_error_free (error);
 137     return;
 138   }
 139
 140   if ((total_apps = G_N_ELEMENTS (registered_names)) != G_N_ELEMENTS (registered_paths)) {
 141     /* wtf, something is broken here, we'd better return */
 142     goto out;
 143   }
 144
 145   for (idx = 0; idx < total_apps; idx++) {
 146     insert_dbus_application (applications, connection,
 147                              registered_names[idx], registered_paths[idx]);
 148   }
 149
 150 out:
 151   g_strfreev (registered_names);
 152   g_strfreev (registered_paths);
 153   g_object_unref (dbus_manager_proxy);
 154 }
 155
 156 static void
 157 populate_applications_table (MMManager *manager)
 158 {
 159   GHashTable *applications = manager->details->applications;
 160   GList *app_providers, *l;
 161   MMApplication *application;
 162   MMApplicationProvider *provider;
 163   const char *id;
 164
 165   app_providers = mm_module_manager_get_all_application_providers (manager->details->module_manager);
 166   for (l = app_providers; l; l = l->next) {
 167     provider = MM_APPLICATION_PROVIDER (l->data);
 168     application = mm_application_provider_get_application (provider);
 169     id = mm_application_get_id (application);
 170     g_hash_table_insert (applications,
 171                          g_strdup (id), /* key   */
 172                          application);  /* value */
 173   }
 174
 175   g_list_free (app_providers);
 176
 177   /* now insert all the application registered on the DBus manager */
 178   insert_dbus_applications (applications);
 179 }
 180
 181 static void
 182 mm_manager_init (MMManager *manager)
 183 {
 184   MMManagerDetails *details = manager->details = MM_MANAGER_GET_PRIVATE (manager);
 185
 186   details->module_manager = MM_MODULE_MANAGER (g_object_new (MM_TYPE_MODULE_MANAGER, NULL));
 187   details->applications = g_hash_table_new_full (g_str_hash, g_str_equal,
 188                                                  (GDestroyNotify) g_free,
 189                                                  NULL);
 190
 191   populate_applications_table (manager);
 192 }
 193
 194 /* public methods */
 195
 196 MMManager *
 197 mm_manager_get (void)
 198 {
 199   if (!mm_manager_singleton) {
 200     mm_manager_singleton = MM_MANAGER (g_object_new (MM_TYPE_MANAGER, NULL));
 201   }
 202
 203   return mm_manager_singleton;
 204 }
 205
 206 GList *
 207 mm_manager_get_application_list_for_type (MMManager *m,
 208                                           MMApplicationType type)
 209 {
 210   GList *all_apps, *l;
 211   GList *app_list = NULL;
 212   MMApplicationType supported_type;
 213   MMApplication *app;
 214
 215   g_return_val_if_fail (m != NULL, NULL);
 216   g_return_val_if_fail (MM_IS_MANAGER (m), NULL);
 217
 218   /* this should be fine anyway, as the hash table is created only when
 219    * initializing the manager.
 220    */
 221   all_apps = g_hash_table_get_values (m->details->applications);
 222   for (l = all_apps; l; l = l->next) {
 223     app = l->data;
 224     g_object_get (app,
 225                   "supported-type", &supported_type,
 226                   NULL);
 227     if (supported_type == type) {
 228       app_list = g_list_prepend (app_list, app);
 229     }
 230   }
 231
 232   g_list_free (all_apps);
 233
 234   return app_list;
 235 }
 236
 237 GList *
 238 mm_manager_get_application_list (MMManager *m)
 239 {
 240   g_return_val_if_fail (m != NULL, NULL);
 241   g_return_val_if_fail (MM_IS_MANAGER (m), NULL);
 242
 243   /* see the comment in _get_application_list_for_type () */
 244   return g_hash_table_get_values (m->details->applications);
 245 }
 246
 247 MMModuleManager *
 248 mm_manager_get_module_manager (MMManager *m)
 249 {
 250   g_return_val_if_fail (m != NULL, NULL);
 251   g_return_val_if_fail (MM_IS_MANAGER (m), NULL);
 252
 253   return m->details->module_manager;
 254 }