void (*message_selected) (ModestTnyHeaderTreeView* self,
TnyMsgIface *msg,
gpointer user_data);
+
+ /* msg == NULL implies that the operation is finished, ie.
+ * the progress indictation can be hidden */
+ void (*status_update) (ModestTnyHeaderTreeView* self,
+ const gchar* msg,
+ gint status,
+ gpointer user_data);
};