gnome-shell-calendar-server: deal with Evolution's move to GSettings

Evolution now stores its selected calendars and tasks in GSettings, not
in GConf. If we don't look at the new location, then we'll not pick up
newly added and enabled calendars, making the calendar effectively not
work for new installs.

https://bugzilla.gnome.org/show_bug.cgi?id=673610

src/calendar-server/calendar-sources.c

@@ -50,11 +50,11 @@
 
 #define CALENDAR_SOURCES_EVO_DIR                          "/apps/evolution"
 #define CALENDAR_SOURCES_APPOINTMENT_SOURCES_KEY          CALENDAR_SOURCES_EVO_DIR "/calendar/sources"
-#define CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_DIR CALENDAR_SOURCES_EVO_DIR "/calendar/display"
-#define CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_KEY CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_DIR "/selected_calendars"
 #define CALENDAR_SOURCES_TASK_SOURCES_KEY                 CALENDAR_SOURCES_EVO_DIR "/tasks/sources"
-#define CALENDAR_SOURCES_SELECTED_TASK_SOURCES_DIR        CALENDAR_SOURCES_EVO_DIR "/calendar/tasks"
+
-#define CALENDAR_SOURCES_SELECTED_TASK_SOURCES_KEY        CALENDAR_SOURCES_SELECTED_TASK_SOURCES_DIR "/selected_tasks"
+#define CALENDAR_SELECTED_SOURCES_SCHEMA                  "org.gnome.evolution.calendar"
+#define CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_KEY "selected-calendars"
+#define CALENDAR_SOURCES_SELECTED_TASK_SOURCES_KEY        "selected-tasks"
 
 typedef struct _CalendarSourceData CalendarSourceData;
 
@@ -65,11 +65,10 @@ struct _CalendarSourceData
   guint            changed_signal;
 
   GSList          *clients;
-  GSList          *selected_sources;
+  char           **selected_sources;
   ESourceList     *esource_list;
 
-  guint            selected_sources_listener;
+  guint            selected_sources_handler_id;
-  char            *selected_sources_dir;
 
   guint            timeout_id;
 
@@ -82,6 +81,7 @@ struct _CalendarSourcesPrivate
   CalendarSourceData  task_sources;
 
   GConfClient        *gconf_client;
+  GSettings          *settings;
 };
 
 static void calendar_sources_class_init (CalendarSourcesClass *klass);
@@ -183,6 +183,7 @@ calendar_sources_init (CalendarSources *sources)
   sources->priv->task_sources.timeout_id     = 0;
 
   sources->priv->gconf_client = gconf_client_get_default ();
+  sources->priv->settings = g_settings_new (CALENDAR_SELECTED_SOURCES_SCHEMA);
 }
 
 static void
@@ -193,21 +194,11 @@ calendar_sources_finalize_source_data (CalendarSources    *sources,
     {
       GSList *l;
 
-      if (source_data->selected_sources_dir)
+      if (source_data->selected_sources_handler_id)
 	{
-	  gconf_client_remove_dir (sources->priv->gconf_client,
+          g_signal_handler_disconnect (sources->priv->settings,
-				   source_data->selected_sources_dir,
+                                       source_data->selected_sources_handler_id);
-				   NULL);
+	  source_data->selected_sources_handler_id = 0;
-
-	  g_free (source_data->selected_sources_dir);
-	  source_data->selected_sources_dir = NULL;
-	}
-
-      if (source_data->selected_sources_listener)
-	{
-	  gconf_client_notify_remove (sources->priv->gconf_client,
-				      source_data->selected_sources_listener);
-	  source_data->selected_sources_listener = 0;
 	}
 
       for (l = source_data->clients; l; l = l->next)
@@ -229,9 +220,7 @@ calendar_sources_finalize_source_data (CalendarSources    *sources,
 	}
       source_data->esource_list = NULL;
 
-      for (l = source_data->selected_sources; l; l = l->next)
+      g_strfreev (source_data->selected_sources);
-	g_free (l->data);
-      g_slist_free (source_data->selected_sources);
       source_data->selected_sources = NULL;
 
       if (source_data->timeout_id != 0)
@@ -256,6 +245,10 @@ calendar_sources_finalize (GObject *object)
     g_object_unref (sources->priv->gconf_client);
   sources->priv->gconf_client = NULL;
 
+  if (sources->priv->settings)
+    g_object_unref (sources->priv->settings);
+  sources->priv->settings = NULL;
+
   if (G_OBJECT_CLASS (parent_class)->finalize)
     G_OBJECT_CLASS (parent_class)->finalize (object);
 }
@@ -277,18 +270,16 @@ calendar_sources_get (void)
 
 static gboolean
 is_source_selected (ESource *esource,
-		    GSList  *selected_sources)
+                    char  **selected_sources)
 {
   const char *uid;
-  GSList     *l;
+  char      **source;
 
   uid = e_source_peek_uid (esource);
 
-  for (l = selected_sources; l; l = l->next)
+  for (source = selected_sources; *source; source++)
     {
-      const char *source = l->data;
+      if (!strcmp (*source, uid))
-
-      if (!strcmp (source, uid))
 	return TRUE;
     }
 
@@ -361,17 +352,15 @@ compare_ecal_lists (GSList *a,
 }
 
 static inline void
-debug_dump_selected_sources (GSList *selected_sources)
+debug_dump_selected_sources (char **selected_sources)
 {
 #ifdef CALENDAR_ENABLE_DEBUG
-  GSList *l;
+  char **source;
 
   dprintf ("Selected sources:\n");
-  for (l = selected_sources; l; l = l->next)
+  for (source = selected_sources; *source; source++)
     {
-      char *source = l->data;
+      dprintf ("  %s\n", *source);
-
-      dprintf ("  %s\n", source);
     }
   dprintf ("\n");
 #endif
@@ -522,34 +511,14 @@ calendar_sources_esource_list_changed (ESourceList        *source_list,
 }
 
 static void
-calendar_sources_selected_sources_notify (GConfClient        *client,
+calendar_sources_selected_sources_notify (GSettings          *settings,
-					  guint               cnx_id,
+                                          const gchar        *key,
-					  GConfEntry         *entry,
 					  CalendarSourceData *source_data)
 {
-  GSList *l;
+  dprintf ("Selected sources key (%s) changed, reloading\n", key);
 
-  if (!entry->value ||
+  g_strfreev (source_data->selected_sources);
-      entry->value->type != GCONF_VALUE_LIST ||
+  source_data->selected_sources = g_settings_get_strv (settings, key);
-      gconf_value_get_list_type (entry->value) != GCONF_VALUE_STRING)
-    return;
-
-  dprintf ("Selected sources key (%s) changed, reloading\n", entry->key);
-
-  for (l = source_data->selected_sources; l; l = l->next)
-    g_free (l->data);
-  source_data->selected_sources = NULL;
-
-  for (l = gconf_value_get_list (entry->value); l; l = l->next)
-    {
-      const char *source = gconf_value_get_string (l->data);
-
-      source_data->selected_sources = 
-	g_slist_prepend (source_data->selected_sources,
-			 g_strdup (source));
-    }
-  source_data->selected_sources =
-    g_slist_reverse (source_data->selected_sources);
 
   calendar_sources_load_esource_list (source_data);
 }
@@ -558,45 +527,27 @@ static void
 calendar_sources_load_sources (CalendarSources    *sources,
 			       CalendarSourceData *source_data,
 			       const char         *sources_key,
-			       const char         *selected_sources_key,
+			       const char         *selected_sources_key)
-			       const char         *selected_sources_dir)
 {
   GConfClient *gconf_client;
-  GError      *error;
+  GSettings   *settings;
+  char        *signal_name;
 
   dprintf ("---------------------------\n");
   dprintf ("Loading sources:\n");
   dprintf ("  sources_key: %s\n", sources_key);
   dprintf ("  selected_sources_key: %s\n", selected_sources_key);
-  dprintf ("  selected_sources_dir: %s\n", selected_sources_dir);
 
   gconf_client = sources->priv->gconf_client;
+  settings = sources->priv->settings;
 
-  error = NULL;
+  source_data->selected_sources = g_settings_get_strv (settings, selected_sources_key);
-  source_data->selected_sources = gconf_client_get_list (gconf_client,
-							 selected_sources_key,
-							 GCONF_VALUE_STRING,
-							 &error);
-  if (error)
-    {
-      g_warning ("Failed to get selected sources from '%s': %s\n",
-		 selected_sources_key,
-		 error->message);
-      g_error_free (error);
-      return;
-    }
 
-  gconf_client_add_dir (gconf_client,
+  signal_name = g_strconcat ("changed::", selected_sources_key, NULL);
-			selected_sources_dir,
+  source_data->selected_sources_handler_id =
-			GCONF_CLIENT_PRELOAD_NONE,
+    g_signal_connect (settings, signal_name,
-			NULL);
+                      G_CALLBACK (calendar_sources_selected_sources_notify), source_data);
-  source_data->selected_sources_dir = g_strdup (selected_sources_dir);
+  g_free (signal_name);
-
-  source_data->selected_sources_listener =
-    gconf_client_notify_add (gconf_client,
-			     selected_sources_dir,
-			     (GConfClientNotifyFunc) calendar_sources_selected_sources_notify,
-			     source_data, NULL, NULL);
 
   source_data->esource_list = e_source_list_new_for_gconf (gconf_client, sources_key);
   g_signal_connect (source_data->esource_list, "changed",
@@ -620,8 +571,7 @@ calendar_sources_get_appointment_sources (CalendarSources *sources)
       calendar_sources_load_sources (sources,
 				     &sources->priv->appointment_sources,
 				     CALENDAR_SOURCES_APPOINTMENT_SOURCES_KEY,
-				     CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_KEY,
+				     CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_KEY);
-				     CALENDAR_SOURCES_SELECTED_APPOINTMENT_SOURCES_DIR);
     }
   
   return sources->priv->appointment_sources.clients;
@@ -637,8 +587,7 @@ calendar_sources_get_task_sources (CalendarSources *sources)
       calendar_sources_load_sources (sources,
 				     &sources->priv->task_sources,
 				     CALENDAR_SOURCES_TASK_SOURCES_KEY,
-				     CALENDAR_SOURCES_SELECTED_TASK_SOURCES_KEY,
+				     CALENDAR_SOURCES_SELECTED_TASK_SOURCES_KEY);
-				     CALENDAR_SOURCES_SELECTED_TASK_SOURCES_DIR);
     }
 
   return sources->priv->task_sources.clients;