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   g_debug ("insert dbus app: name %s path %s", name, path);
  73
  74   app_proxy = dbus_g_proxy_new_for_name (connection,
  75                                          name, path,
  76                                          "org.gnome.MediaManager.Application");
  77   res = dbus_g_proxy_call (app_proxy,
  78                            "GetApplicationInfo",
  79                            &error,
  80                            G_TYPE_INVALID,
  81                            G_TYPE_UINT,
  82                            &supported_type,
  83                            G_TYPE_STRING,
  84                            &desktop_id,
  85                            G_TYPE_INVALID);
  86   if (!res) {
  87     g_warning ("Unable to get application info for the app at path %s: %s", path,
  88                error->message);
  89     g_object_unref (app_proxy);
  90     g_error_free (error);
  91     return;
  92   }
  93
  94   app = mm_dbus_application_new (desktop_id, supported_type,
  95                                  name, path);
  96   g_hash_table_insert (applications,
  97                        g_strdup (name), /* key   */
  98                        app);            /* value */
  99   g_free (desktop_id);
 100   g_object_unref (app_proxy);
 101 }
 102
 103 static void
 104 insert_dbus_applications (GHashTable *applications)
 105 {
 106   DBusGConnection *connection;
 107   DBusGProxy *dbus_manager_proxy;
 108   GError *error = NULL;
 109   gboolean res;
 110   char **registered_names = NULL;
 111   char **registered_paths = NULL;
 112   int idx, total_apps;
 113
 114   connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
 115   if (error) {
 116     g_warning ("Error while connecting to the session bus: %s", error->message);
 117     g_error_free (error);
 118     return;
 119   }
 120
 121   dbus_manager_proxy = dbus_g_proxy_new_for_name (connection,
 122                                                   "org.gnome.MediaManager",
 123                                                   "/org/gnome/MediaManager/Manager",
 124                                                   "org.gnome.MediaManager.Manager");
 125   res = dbus_g_proxy_call (dbus_manager_proxy,
 126                            "GetRegisteredApps",
 127                            &error,
 128                            G_TYPE_INVALID,
 129                            G_TYPE_STRV,
 130                            &registered_names,
 131                            G_TYPE_STRV,
 132                            &registered_paths,
 133                            G_TYPE_INVALID);
 134   if (!res) {
 135     g_warning ("Error while calling GetRegisteredApps on the dbus manager: %s",
 136                error->message);
 137     g_object_unref (dbus_manager_proxy);
 138     g_error_free (error);
 139     return;
 140   }
 141
 142   if ((total_apps = G_N_ELEMENTS (registered_names)) != G_N_ELEMENTS (registered_paths)) {
 143     /* wtf, something is broken here, we'd better return */
 144     goto out;
 145   }
 146
 147   if (total_apps == 1) {
 148     /* array is NULL-terminated, so in this case there are no
 149      * applications.
 150      */
 151     goto out;
 152   }
 153
 154   for (idx = 0; idx < total_apps - 1; idx++) {
 155     insert_dbus_application (applications, connection,
 156                              registered_names[idx], registered_paths[idx]);
 157   }
 158
 159 out:
 160   g_strfreev (registered_names);
 161   g_strfreev (registered_paths);
 162   g_object_unref (dbus_manager_proxy);
 163 }
 164
 165 static void
 166 populate_applications_table (MMManager *manager)
 167 {
 168   GHashTable *applications = manager->details->applications;
 169   GList *app_providers, *l;
 170   MMApplication *application;
 171   MMApplicationProvider *provider;
 172   const char *id;
 173
 174   app_providers = mm_module_manager_get_all_application_providers (manager->details->module_manager);
 175   for (l = app_providers; l; l = l->next) {
 176     provider = MM_APPLICATION_PROVIDER (l->data);
 177     application = mm_application_provider_get_application (provider);
 178     id = mm_application_get_id (application);
 179     g_hash_table_insert (applications,
 180                          g_strdup (id), /* key   */
 181                          application);  /* value */
 182   }
 183
 184   g_list_free (app_providers);
 185
 186   /* now insert all the application registered on the DBus manager */
 187   insert_dbus_applications (applications);
 188 }
 189
 190 static void
 191 mm_manager_init (MMManager *manager)
 192 {
 193   MMManagerDetails *details = manager->details = MM_MANAGER_GET_PRIVATE (manager);
 194
 195   details->module_manager = MM_MODULE_MANAGER (g_object_new (MM_TYPE_MODULE_MANAGER, NULL));
 196   details->applications = g_hash_table_new_full (g_str_hash, g_str_equal,
 197                                                  (GDestroyNotify) g_free,
 198                                                  NULL);
 199
 200   populate_applications_table (manager);
 201 }
 202
 203 /* public methods */
 204
 205 MMManager *
 206 mm_manager_get (void)
 207 {
 208   if (!mm_manager_singleton) {
 209     mm_manager_singleton = MM_MANAGER (g_object_new (MM_TYPE_MANAGER, NULL));
 210   }
 211
 212   return mm_manager_singleton;
 213 }
 214
 215 GList *
 216 mm_manager_get_application_list_for_type (MMManager *m,
 217                                           MMApplicationType type)
 218 {
 219   GList *all_apps, *l;
 220   GList *app_list = NULL;
 221   MMApplicationType supported_type;
 222   MMApplication *app;
 223
 224   g_return_val_if_fail (m != NULL, NULL);
 225   g_return_val_if_fail (MM_IS_MANAGER (m), NULL);
 226
 227   /* this should be fine anyway, as the hash table is created only when
 228    * initializing the manager.
 229    */
 230   all_apps = g_hash_table_get_values (m->details->applications);
 231   for (l = all_apps; l; l = l->next) {
 232     app = l->data;
 233     g_object_get (app,
 234                   "supported-type", &supported_type,
 235                   NULL);
 236     if (supported_type == type) {
 237       app_list = g_list_prepend (app_list, app);
 238     }
 239   }
 240
 241   g_list_free (all_apps);
 242
 243   return app_list;
 244 }
 245
 246 GList *
 247 mm_manager_get_application_list (MMManager *m)
 248 {
 249   g_return_val_if_fail (m != NULL, NULL);
 250   g_return_val_if_fail (MM_IS_MANAGER (m), NULL);
 251
 252   /* see the comment in _get_application_list_for_type () */
 253   return g_hash_table_get_values (m->details->applications);
 254 }
 255
 256 MMModuleManager *
 257 mm_manager_get_module_manager (MMManager *m)
 258 {
 259   g_return_val_if_fail (m != NULL, NULL);
 260   g_return_val_if_fail (MM_IS_MANAGER (m), NULL);
 261
 262   return m->details->module_manager;
 263 }