/**
* #pre_render callback for #type 'mollom'.
*
* - Hides the CAPTCHA if it is not required or the solution was correct.
* - Marks the CAPTCHA as required.
*/
public static function preRenderMollom(array $element)
{
// If a CAPTCHA was solved, then no need to continue to display.
if (isset($element['captcha']['#solved']) && $element['captcha']['#solved'] === TRUE) {
$element['captcha']['#access'] = FALSE;
} else {
// Add the CAPTCHA if required, or hide the element if not required.
if (!empty($element['captcha_required']['#value'])) {
Mollom::addMollomCaptcha($element);
} else {
$element['captcha']['#access'] = FALSE;
}
}
// UX: Empty the CAPTCHA field value, as the user has to re-enter a new one.
$element['captcha']['captcha_input']['#value'] = '';
// DX: Debugging helpers.
//$element['#suffix'] = 'contentId: ' . $element['contentId']['#value'] . '<br>';
//$element['#suffix'] .= 'captchaId: ' . $element['captchaId']['#value'] . '<br>';
return $element;
}
/**
* Determine if Mollom validation should be run.
*
* This is required because even with limit_validation_errors set, Drupal
* will still run the form validation (and then just not display the errors).
* We don't want to contact Mollom to validate a CAPTCHA when the request is
* simply to retrieve a new one.
*/
protected static function shouldValidate(array $form, FormStateInterface $form_state)
{
// If the triggering element is within the captcha element, then no Mollom
// validation should even run because it's pulling a new captcha element.
return !Mollom::isCaptchaRefreshProcessing($form_state) && !Mollom::isCaptchaSwitchProcessing($form_state);
}
