Change-Id: I8a1aa54f17c85fc2e7ff6582ad55a4c882c1fc47
*
* @details Disable the clear button. If @param disable is EINA_TRUE, it will hide the clear button always.
* If @param disable is EINA_FALSE, the clear button will be shown or hidden automatically.
+ * Basically, the clear button will be shown when the text is not empty and
+ * be hidden when the text is empty or the entry loses focus.
*
* @param [in] obj the entry widget object
* @param [in] disable EINA_TRUE : the clear button will be hidden always