manager: implemented GcalManager::get_source method

src/gcal-manager.c

@@ -855,6 +855,26 @@ gcal_manager_new_with_settings (GSettings *settings)
   return GCAL_MANAGER (g_object_new (GCAL_TYPE_MANAGER, "settings", settings, NULL));
 }
 
+/**
+ * gcal_manager_get_source:
+ * @manager:
+ *
+ * Retrieve a source according to it's UID. The source
+ * is referenced for thread-safety and must be unreferenced
+ * after user.
+ *
+ * Returns: (Transfer full) an {@link ESource}, or NULL.
+ **/
+ESource*
+gcal_manager_get_source (GcalManager *manager,
+                         const gchar *uid)
+{
+  GcalManagerPrivate *priv;
+  priv = gcal_manager_get_instance_private (manager);
+
+  return e_source_registry_ref_source (priv->source_registry, uid);
+}
+
 /**
  * gcal_manager_get_sources:
  * @manager:

src/gcal-manager.h

@@ -63,6 +63,9 @@ GType          gcal_manager_get_type                (void);
 
 GcalManager*   gcal_manager_new_with_settings       (GSettings          *settings);
 
+ESource*       gcal_manager_get_source              (GcalManager        *manager,
+                                                     const gchar        *uid);
+
 GList*         gcal_manager_get_sources             (GcalManager        *manager);
 
 GList*         gcal_manager_get_sources_connected   (GcalManager        *manager);