hover in region

  /**
   * Perform mouse hover over specific link or element selector
   *
   * @Given I hover mouse over :element_link in the :name region
   */
  public function hoverMouseOver($element_link, $region) {
    $region_obj = $this->getRegion($region);
    $el = $region_obj->findLink($element_link);
    if(!$el instanceof NodeElement){
      $el = $this->findByCssIdOneElement($element_link);
      if(!$el instanceof NodeElement) {
        throw new Exception(sprintf('No link "%s" on the page %s', $element_link, $this->getSession()->getCurrentUrl()));
      }
    }
    $el->mouseOver();
  }