public static function WebformElementAttributes::processWebformElementAttributes in Webform 6.x

Same name and namespace in other branches

1. 8.5 src/Element/WebformElementAttributes.php \Drupal\webform\Element\WebformElementAttributes::processWebformElementAttributes()

Processes element attributes.

File

src/Element/WebformElementAttributes.php, line 51

Class

WebformElementAttributes

Provides a webform element for element attributes.

Namespace

Drupal\webform\Element

Code

public static function processWebformElementAttributes(&$element, FormStateInterface $form_state, &$complete_form) {
  $element['#tree'] = TRUE;

  // Determine what type of HTML element the attributes are being applied to.
  $type = t('element');
  $types = [
    preg_quote(t('webform')),
    preg_quote(t('link')),
    preg_quote(t('button')),
  ];
  if (preg_match('/\\b(' . implode('|', $types) . ')\\b/i', $element['#title'], $match)) {
    $type = $match[1];
  }
  $t_args = [
    '@title' => $element['#title'],
    '@type' => mb_strtolower($type),
  ];

  // Class.
  $element['#classes'] = trim($element['#classes']);
  if ($element['#classes']) {
    $classes = preg_split('/\\r?\\n/', $element['#classes']);
    $element['class'] = [
      '#type' => 'webform_select_other',
      '#title' => t('@title CSS classes', $t_args),
      '#description' => t("Apply classes to the @type. Select 'custom…' to enter custom classes.", $t_args),
      '#multiple' => TRUE,
      '#options' => [
        WebformSelectOther::OTHER_OPTION => t('custom…'),
      ] + array_combine($classes, $classes),
      '#other__placeholder' => t('Enter custom classes…'),
      '#other__option_delimiter' => ' ',
      '#attributes' => [
        'class' => [
          'js-' . $element['#id'] . '-attributes-style',
        ],
      ],
      '#select2' => TRUE,
      '#default_value' => $element['#default_value']['class'],
    ];
    WebformElementHelper::process($element['class']);
  }
  else {
    $element['class'] = [
      '#type' => 'textfield',
      '#title' => t('@title CSS classes', $t_args),
      '#description' => t("Apply classes to the @type.", $t_args),
      '#default_value' => implode(' ', $element['#default_value']['class']),
    ];
  }

  // Custom options.
  $element['custom'] = [
    '#type' => 'texfield',
    '#placeholder' => t('Enter custom classes…'),
    '#states' => [
      'visible' => [
        'select.js-' . $element['#id'] . '-attributes-style' => [
          'value' => '_custom_',
        ],
      ],
    ],
    '#error_no_message' => TRUE,
    '#default_value' => '',
  ];

  // Style.
  $element['style'] = [
    '#type' => 'textfield',
    '#title' => t('@title CSS style', $t_args),
    '#description' => t('Apply custom styles to the @type.', $t_args),
    '#default_value' => $element['#default_value']['style'],
  ];

  // Attributes.
  $attributes = $element['#default_value'];
  unset($attributes['class'], $attributes['style']);
  $element['attributes'] = [
    '#type' => 'webform_codemirror',
    '#mode' => 'yaml',
    '#title' => t('@title custom attributes (YAML)', $t_args),
    '#description' => t('Enter additional attributes to be added the @type.', $t_args),
    '#attributes__access' => !\Drupal::moduleHandler()
      ->moduleExists('webform_ui') || \Drupal::currentUser()
      ->hasPermission('edit webform source'),
    '#default_value' => WebformYaml::encode($attributes),
  ];

  // Apply custom properties. Typically used for descriptions.
  foreach ($element as $key => $value) {
    if (strpos($key, '__') !== FALSE) {
      list($element_key, $property_key) = explode('__', ltrim($key, '#'));
      $element[$element_key]["#{$property_key}"] = $value;
    }
  }

  // Add validate callback.
  $element += [
    '#element_validate' => [],
  ];
  array_unshift($element['#element_validate'], [
    get_called_class(),
    'validateWebformElementAttributes',
  ]);
  return $element;
}