/**
* Get container buttons HTML
*
* Since buttons are set as children, we remove them as children after generating them
* not to duplicate them in future
*
* @param null $area
* @return string
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
public function getButtonsHtml($area = null)
{
if (null === $this->_buttonsHtml) {
$this->_buttonsHtml = parent::getButtonsHtml();
$layout = $this->getLayout();
foreach ($this->getChildNames() as $name) {
$alias = $layout->getElementAlias($name);
if (false !== strpos($alias, '_button')) {
$layout->unsetChild($this->getNameInLayout(), $alias);
}
}
}
return $this->_buttonsHtml;
}