ViewModeSelectorIcons.php in View Mode Selector 8

Namespace

Drupal\view_mode_selector\Plugin\Field\FieldWidget

File

src/Plugin/Field/FieldWidget/ViewModeSelectorIcons.php

<?php

namespace Drupal\view_mode_selector\Plugin\Field\FieldWidget;

use Drupal\Core\Entity\EntityDisplayRepositoryInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\RendererInterface;
use Drupal\file\FileInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * @FieldWidget(
 *  id = "view_mode_selector_icons",
 *  label = @Translation("Icons"),
 *  field_types = {"view_mode_selector"}
 * )
 */
class ViewModeSelectorIcons extends ViewModeSelectorRadios {

  /**
   * @var \Drupal\Core\Render\RendererInterface $renderer
   */
  protected $renderer;

  /**
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * ViewModeSelectorIcons constructor.
   *
   * @param string $plugin_id
   * @param mixed $plugin_definition
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   * @param array $settings
   * @param array $third_party_settings
   * @param \Drupal\Core\Entity\EntityDisplayRepositoryInterface $entity_display_repository
   * @param \Drupal\Core\Render\RendererInterface $renderer
   */
  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, array $third_party_settings, EntityDisplayRepositoryInterface $entity_display_repository, EntityTypeManagerInterface $entity_type_manager, RendererInterface $renderer) {
    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $third_party_settings, $entity_display_repository);
    $this->renderer = $renderer;
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($plugin_id, $plugin_definition, $configuration['field_definition'], $configuration['settings'], $configuration['third_party_settings'], $container
      ->get('entity_display.repository'), $container
      ->get('entity_type.manager'), $container
      ->get('renderer'));
  }

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $element = parent::formElement($items, $delta, $element, $form, $form_state);
    $settings = $this
      ->getFieldSettings();
    $element['#attached'] = [
      'library' => [
        'view_mode_selector/widget_styles',
      ],
    ];
    foreach (array_keys($this->viewModes) as $view_mode) {

      // Add view mode defaults.
      // @todo Move to a separate method.
      $settings['view_modes'][$view_mode] += [
        'enable' => 0,
        'hide_title' => 0,
        'icon' => [],
      ];
      $output = [];
      if (!empty($settings['view_modes'][$view_mode]['icon'][0])) {

        /** @var FileInterface $icon */
        $icon = $this->entityTypeManager
          ->getStorage('file')
          ->load($settings['view_modes'][$view_mode]['icon'][0]);
        if (!$icon) {
          continue;
        }
        $render = [
          '#theme' => 'image',
          '#uri' => $icon
            ->getFileUri(),
          '#alt' => t('Sample original image'),
          '#title' => $this->viewModes[$view_mode],
        ];
        $output[] = $this->renderer
          ->render($render);
      }
      else {
        $element['value'][$view_mode]['#attributes']['class'][] = 'no-preview';
      }
      if (!$settings['view_modes'][$view_mode]['hide_title']) {
        $output[] = '<small>' . $this->viewModes[$view_mode] . '</small>';
      }

      // Use the generated markup as our label value.
      $element['value']['#options'][$view_mode] = implode($output, '');
    }
    return $element;
  }

}

Classes

Name	Description
ViewModeSelectorIcons	Plugin annotation @FieldWidget( id = "view_mode_selector_icons", label = @Translation("Icons"), field_types = {"view_mode_selector"} )