Details.php in Double Field 4.x

Namespace

Drupal\double_field\Plugin\Field\FieldFormatter

File

src/Plugin/Field/FieldFormatter/Details.php

<?php

namespace Drupal\double_field\Plugin\Field\FieldFormatter;

use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;

/**
 * Plugin implementations for 'details' formatter.
 *
 * @FieldFormatter(
 *   id = "double_field_details",
 *   label = @Translation("Details"),
 *   field_types = {"double_field"}
 * )
 */
class Details extends Base {

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() : array {
    return [
      'open' => TRUE,
    ] + parent::defaultSettings();
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) : array {
    $settings = $this
      ->getSettings();
    $element['open'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Open'),
      '#default_value' => $settings['open'],
    ];
    $element += parent::settingsForm($form, $form_state);
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() : array {
    $open = $this
      ->getSetting('open');
    $summary[] = $this
      ->t('Open: @open', [
      '@open' => $open ? $this
        ->t('yes') : $this
        ->t('no'),
    ]);
    return array_merge($summary, parent::settingsSummary());
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) : array {
    $element = [];
    $settings = $this
      ->getSettings();
    foreach ($items as $delta => $item) {
      $values = [];
      foreach ([
        'first',
        'second',
      ] as $subfield) {
        $values[$subfield] = $item->{$subfield};
      }
      $element[$delta] = [
        '#title' => $values['first'],
        '#value' => $values['second'],
        '#type' => 'details',
        '#open' => $settings['open'],
        '#attributes' => [
          'class' => [
            'double-field-details',
          ],
        ],
      ];
    }
    return $element;
  }

}

Classes

Name	Description
Details	Plugin implementations for 'details' formatter.