/**
* Traverses an element to find the closest button.
*
* @param \Drupal\materialize\Utility\Element $element
* The element to iterate over.
*
* @return \Drupal\materialize\Utility\Element|FALSE
* The first button element or FALSE if no button could be found.
*/
protected static function &findButton(Element $element)
{
$button = FALSE;
foreach ($element->children() as $child) {
if ($child->isButton()) {
$button = $child;
}
if ($result =& self::findButton($child)) {
$button = $result;
}
}
return $button;
}
