- * contents. Allowed values are 'ltr' for Left-To-Right language (like\r
- * English), or 'rtl' for Right-To-Left languages (like Arabic).\r
- * @default 'ltr'\r
+ * contents. Allowed values are:\r
+ * <ul>\r
+ * <li>'ui' - which indicate content direction will be the same with the user interface language direction;</li>\r
+ * <li>'ltr' - for Left-To-Right language (like English);</li>\r
+ * <li>'rtl' - for Right-To-Left languages (like Arabic).</li>\r
+ * </ul>\r
+ * @default 'ui'\r