/** * How to position the tooltip - top | bottom | left | right | auto. * When "auto" is specified, it will dynamically reorient the tooltip. * For example, if placement is "auto left", the tooltip will display to the left when possible, otherwise it will display right. * When a function is used to determine the placement, * it is called with the tooltip DOM node as its first argument and the triggering element DOM node as its second. * The this context is set to the tooltip instance. * @param string $value * @return $this default : top */ public function setPlacement($value) { return $this->setParamCtrl("placement", $value, CssRef::position()); }