public function getClasses(fxFormElement &$e, $extras = '')
{
if (is_string($extras) && '' !== $extras) {
$classes = explode(',', $extras);
} elseif (is_array($extras)) {
$classes = $extras;
} else {
$classes = array();
}
if ($e->class) {
$classes[] = htmlspecialchars($e->class);
}
if ($e->disabled) {
$classes[] = 'disabled';
} elseif (!$this->rendering_element_set) {
if (!$this->submitting && $e->_inData('required') && empty($e->_value)) {
$classes[] = 'required';
}
if ($this->submitting && !$e->_isValid()) {
$classes[] = 'error';
}
if ($this->submitting && $e->_inData('required') && $e->_isValid()) {
$classes[] = 'ok';
}
}
if (empty($classes)) {
return '';
}
return ' class="' . implode(' ', $classes) . '"';
}
