/**
* Recurse the given form and return the hints for it and all of its subforms
*
* @param Form $form The form to recurse
* @param mixed $entirelyRequired Set by reference, true means all elements in the hierarchy are
* required, false only a partial subset and null none at all
* @param bool $elementsPassed Whether there were any elements passed during the recursion until now
*
* @return array
*/
protected function recurseForm(Form $form, &$entirelyRequired = null, $elementsPassed = false)
{
$requiredLabels = array();
if ($form->getRequiredCue() !== null) {
$partiallyRequired = $partiallyOptional = false;
foreach ($form->getElements() as $element) {
if (!in_array($element->getType(), $this->blacklist)) {
if (!$element->isRequired()) {
$partiallyOptional = true;
if ($entirelyRequired) {
$entirelyRequired = false;
}
} else {
$partiallyRequired = true;
if (($label = $element->getDecorator('label')) !== false) {
$requiredLabels[] = $label;
}
}
}
}
if (!$elementsPassed) {
$elementsPassed = $partiallyRequired || $partiallyOptional;
if ($entirelyRequired === null && $partiallyRequired) {
$entirelyRequired = !$partiallyOptional;
}
} elseif ($entirelyRequired === null && $partiallyRequired) {
$entirelyRequired = false;
}
}
$hints = array($form->getHints());
foreach ($form->getSubForms() as $subForm) {
$hints[] = $this->recurseForm($subForm, $entirelyRequired, $elementsPassed);
}
if ($entirelyRequired) {
foreach ($requiredLabels as $label) {
$label->setRequiredSuffix('');
}
}
return call_user_func_array('array_merge', $hints);
}
