/**
* {@inheritdoc}
*/
public function __invoke(OutputBuffer $out)
{
$options = $this->options;
$multiple = $this->multiple;
if (!is_array($options) && !is_object($options)) {
throw new \InvalidArgumentException(sprintf('Invalid combobox options: "%s"', gettype($options)));
}
$builder = new TagBuilder('select');
$this->populatePassthroughAttributes($builder);
$inspection = $this->inspectAttribute('bind');
if (NULL !== ($name = $this->name)) {
$builder->set('name', $name . ($multiple ? '[]' : ''));
} elseif (NULL !== $inspection->name) {
$builder->set('name', $inspection->name);
}
$builder->addClass('kk');
$builder->setBoolean('disabled', $this->disabled);
$builder->setBoolean('multiple', $multiple);
if (NULL !== ($placeholder = $this->placeholder)) {
$builder->set('data-placeholder', $placeholder);
}
$bind = $inspection->value;
if ($multiple) {
if ($bind === NULL || is_scalar($bind)) {
$bound = [(string) $bind];
} else {
if (!is_array($bind) && !$bind instanceof \Traversable) {
throw new \InvalidArgumentException(sprintf('Invalid combobox bound value: "%s"', gettype($bind)));
}
$bound = [];
foreach ($bind as $tmp) {
$bound[] = (string) $tmp;
}
}
} else {
$bound = (array) $bind;
}
$buffer = $this->renderNestedNodes($out->createBuffer(), $builder);
if ($options instanceof GroupedOptions) {
foreach ($options->getOptions() as $group => $entries) {
$buffer .= '<optgroup label="' . $out->escape($group) . '">';
foreach ($entries as $k => $v) {
$buffer .= '<option value="' . $out->escape($k);
if (in_array((string) $k, $bound, true)) {
$buffer .= '" selected="selected';
}
$buffer .= '">' . $out->escape($v) . '</option>';
}
$buffer .= '</optgroup>';
}
} else {
foreach ($options as $k => $v) {
$buffer .= '<option value="' . $out->escape($k);
if (in_array((string) $k, $bound, true)) {
$buffer .= '" selected="selected';
}
$buffer .= '">' . $out->escape($v) . '</option>';
}
}
$out->writeTag($builder, $buffer, false);
}
