abstract class WebformExcludedBase in Webform 6.x

Provides a base webform element for webform excluded elements and columns.

This element is just intended to capture all the business logic around selecting excluded webform elements which is used by the EmailWebformHandler and the WebformResultsExportForm webforms.

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
      • class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
        • class \Drupal\webform\Element\WebformExcludedBase

File

src/Element/WebformExcludedBase.php, line 16

Namespace

Drupal\webform\Element

abstract class WebformExcludedBase extends FormElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    $class = get_class($this);
    return [
      '#input' => TRUE,
      '#process' => [
        [
          $class,
          'processWebformExcluded',
        ],
      ],
      '#webform_id' => NULL,
      '#theme_wrappers' => [
        'form_element',
      ],
      '#default_value' => [],
    ];
  }

  /**
   * Processes a webform elements webform element.
   */
  public static function processWebformExcluded(&$element, FormStateInterface $form_state, &$complete_form) {
    $options = static::getWebformExcludedOptions($element);
    $default_value = array_diff(array_keys($options), array_keys($element['#default_value'] ?: []));
    $element['#tree'] = TRUE;

    // Add validate callback.
    $element += [
      '#element_validate' => [],
    ];
    array_unshift($element['#element_validate'], [
      get_called_class(),
      'validateWebformExcluded',
    ]);
    $element['tableselect'] = [
      '#type' => 'tableselect',
      '#header' => static::getWebformExcludedHeader(),
      '#options' => $options,
      '#js_select' => TRUE,
      '#empty' => t('No elements are available.'),
      '#default_value' => array_combine($default_value, $default_value),
    ];
    TableSelect::setProcessTableSelectCallback($element['tableselect']);
    if (isset($element['#parents'])) {
      $element['tableselect']['#parents'] = array_merge($element['#parents'], [
        'tableselect',
      ]);
    }

    // Build tableselect element with selected properties.
    $properties = [
      '#title',
      '#title_display',
      '#description',
      '#description_display',
      '#ajax',
      '#states',
    ];
    $element['tableselect'] += array_intersect_key($element, array_combine($properties, $properties));
    return $element;
  }

  /**
   * Validates a tablelselect element.
   */
  public static function validateWebformExcluded(array &$element, FormStateInterface $form_state, &$complete_form) {
    $value = array_filter($element['tableselect']['#value']);

    // Converted value to excluded elements.
    $options = array_keys($element['tableselect']['#options']);
    $excluded = array_diff($options, $value);

    // Unset tableselect and set the element's value to excluded.
    $form_state
      ->setValueForElement($element['tableselect'], NULL);
    $value = array_combine($excluded, $excluded);
    $element['#value'] = $value;
    $form_state
      ->setValueForElement($element, $value);
  }

  /**
   * Get header for the excluded tableselect element.
   *
   * @return array
   *   An array container the header for the excluded tableselect element.
   */
  public static function getWebformExcludedHeader() {
    return [];
  }

  /**
   * Get options for excluded tableselect element.
   *
   * @param array $element
   *   An associative array containing the properties and children of the
   *   generic element element.
   *
   * @return array
   *   An array of options containing title, name, and type of items for a
   *   tableselect element.
   */
  public static function getWebformExcludedOptions(array $element) {
    return [];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__sleep	public	function		2
DependencySerializationTrait::__wakeup	public	function		2
FormElement::processAutocomplete	public static	function	Adds autocomplete functionality to elements.
FormElement::processPattern	public static	function	#process callback for #pattern form element property.
FormElement::validatePattern	public static	function	#element_validate callback for #pattern form element property.
FormElement::valueCallback	public static	function	Determines how user input is mapped to an element's #value property. Overrides FormElementInterface::valueCallback	15
MessengerTrait::$messenger	protected	property	The messenger.	27
MessengerTrait::messenger	public	function	Gets the messenger.	27
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	2
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
PluginBase::__construct	public	function	Constructs a \Drupal\Component\Plugin\PluginBase object.	98
RenderElement::preRenderAjaxForm	public static	function	Adds Ajax information about an element to communicate with JavaScript.
RenderElement::preRenderGroup	public static	function	Adds members of this group as actual elements for rendering.
RenderElement::processAjaxForm	public static	function	Form element processing handler for the #ajax form property.	1
RenderElement::processGroup	public static	function	Arranges elements into groups.
RenderElement::setAttributes	public static	function	Sets a form element's class attribute. Overrides ElementInterface::setAttributes
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	4
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
WebformExcludedBase::getInfo	public	function	Returns the element properties for this element. Overrides ElementInterface::getInfo	1
WebformExcludedBase::getWebformExcludedHeader	public static	function	Get header for the excluded tableselect element.	2
WebformExcludedBase::getWebformExcludedOptions	public static	function	Get options for excluded tableselect element.	2
WebformExcludedBase::processWebformExcluded	public static	function	Processes a webform elements webform element.
WebformExcludedBase::validateWebformExcluded	public static	function	Validates a tablelselect element.