public function __invoke(ElementInterface $element = null, $buttonContent = null)
{
if ($element && !$element->hasAttribute('class')) {
$this->addClasses($element, ['btn', 'btn-default']);
}
return parent::__invoke($element);
}
/**
* Render a form <button> element from the provided $element,
* using content from $buttonContent or the element's "label" attribute
* @param ElementInterface $element
* @param null|string $buttonContent
* @param null|string $formType
* @param array $displayOptions
* @return string
*/
public function render(ElementInterface $element, $buttonContent = null, $formType = null, array $displayOptions = array())
{
$this->prepareElementBeforeRendering($element, $formType, $displayOptions);
$html = parent::render($element, $buttonContent);
return $html;
}
/**
* Button element
*
* @param ElementInterface|null $element
* @param null $buttonContent
* @return string|Helper\FormButton
*/
public function button(ElementInterface $element = null, $buttonContent = null)
{
$helper = new Helper\FormButton();
return $helper->__invoke($element, $buttonContent);
}
