ultimate_table_field-1.0.0-alpha5/src/Plugin/Field/FieldWidget/UltimateTableFieldWidget.php

<?php

namespace Drupal\ultimate_table_field\Plugin\Field\FieldWidget;

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

/**
 * Plugin implementation of the ultimate table field widget.
 *
 * @FieldWidget(
 *   id = "ultimate_table",
 *   label = @Translation("Ultimate table"),
 *   description = @Translation("Ultimate table default widget."),
 *   field_types = {
 *     "ultimate_table"
 *   }
 * )
 */
class UltimateTableFieldWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $table_data = $items[$delta];
    $default_value = $table_data->value ?? [];
    if (!empty($default_value)) {
      $default_value = ['values' => $default_value];
    }
    $allowed_value = $this->getFieldSetting('allowed_types') ?? [];
    $allowed_value = array_filter($allowed_value);
    $element += [
      '#type' => 'ultimate_table',
      '#tree' => TRUE,
      '#allowed_types' => array_values($allowed_value),
      '#default_value' => $default_value,
      '#enable_legend' => $this->getFieldSetting('enable_legend'),
      '#enable_summary' => $this->getFieldSetting('enable_summary'),
    ];

    return $element;
  }

  /**
   * {@inheritDoc}
   */
  public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
    $values = !empty($values) ? array_map(fn($value) => $value['values'], $values) : [];
    foreach ($values as &$value) {
      $value = ['value' => $value];
    }
    return $values;
  }

}