and add attributes such as * classes or an HTML id. * * @param array $variables * An associative array containing: * - element: An associative array containing the properties of the element. * Properties used: #id, #attributes, #children. * * @return string * The constructed HTML. * * @see theme_container() * * @ingroup theme_functions */ function bootstrap_container($variables) { $element = $variables['element']; // Ensure #attributes is set. $element += array('#attributes' => array()); // Special handling for form elements. if (isset($element['#array_parents'])) { // Assign an html ID. if (!isset($element['#attributes']['id'])) { $element['#attributes']['id'] = $element['#id']; } // Core's "form-wrapper" class is required for states.js to function. $element['#attributes']['class'][] = 'form-wrapper'; // Add Bootstrap "form-group" class. $element['#attributes']['class'][] = 'form-group'; } return '' . $element['#children'] . ''; }