';
if ($element['#autocomplete_path'] && !empty($element['#autocomplete_input'])) {
drupal_add_library('system', 'drupal.autocomplete');
$element['#attributes']['class'][] = 'form-autocomplete';
// Append a hidden autocomplete element.
$autocomplete = array(
'#type' => 'hidden',
'#value' => $element['#autocomplete_input']['#url_value'],
'#attributes' => array(
'class' => array('autocomplete'),
'disabled' => 'disabled',
'id' => $element['#autocomplete_input']['#id'],
),
);
$output .= drupal_render($autocomplete);
// Append icon for autocomplete "throbber" or use core's default throbber
// whose background image must be set here because sites may not be
// at the root of the domain (ie: /) and this value cannot be set via CSS.
if (!isset($element['#autocomplete_icon'])) {
$element['#autocomplete_icon'] = _bootstrap_icon('refresh', '');
}
// Only add an icon if there is one.
if ($element['#autocomplete_icon']) {
$output .= '' . $element['#autocomplete_icon'] . '';
// Wrap entire element in a input group if not already in one.
if (!isset($element['#input_group']) && !isset($element['#input_group_button'])) {
$input_group_attributes = isset($element['#input_group_attributes']) ? $element['#input_group_attributes'] : array();
if (!isset($input_group_attributes['class'])) {
$input_group_attributes['class'] = array();
}
if (!in_array('input-group', $input_group_attributes['class'])) {
$input_group_attributes['class'][] = 'input-group';
}
$output = '' . $output . '';
}
}
}
return $output;
}