aleph1.co.uk Git - yaffs-website/blob - Plugin/EntityBrowser/FieldWidgetDisplay/ImageThumbnail.php

   1 <?php
   2
   3 namespace Drupal\entity_browser\Plugin\EntityBrowser\FieldWidgetDisplay;
   4
   5 use Drupal\Core\Entity\EntityInterface;
   6 use Drupal\Core\Entity\EntityTypeManagerInterface;
   7 use Drupal\Core\Entity\EntityTypeInterface;
   8 use Drupal\Core\Form\FormStateInterface;
   9 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
  10 use Drupal\file\FileInterface;
  11 use Symfony\Component\DependencyInjection\ContainerInterface;
  12 use Drupal\entity_browser\FieldWidgetDisplayBase;
  13
  14 /**
  15  * Displays image thumbnail.
  16  *
  17  * @EntityBrowserFieldWidgetDisplay(
  18  *   id = "thumbnail",
  19  *   label = @Translation("Image thumbnail"),
  20  *   description = @Translation("Displays image files as thumbnails")
  21  * )
  22  */
  23 class ImageThumbnail extends FieldWidgetDisplayBase implements ContainerFactoryPluginInterface {
  24
  25   /**
  26    * Entity type manager service.
  27    *
  28    * @var \Drupal\Core\Entity\EntityTypeManagerInterface
  29    */
  30   protected $entityTypeManager;
  31
  32   /**
  33    * Constructs widget plugin.
  34    *
  35    * @param array $configuration
  36    *   A configuration array containing information about the plugin instance.
  37    * @param string $plugin_id
  38    *   The plugin_id for the plugin instance.
  39    * @param mixed $plugin_definition
  40    *   The plugin implementation definition.
  41    * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
  42    *   Entity manager service.
  43    */
  44   public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityTypeManagerInterface $entity_type_manager) {
  45     parent::__construct($configuration, $plugin_id, $plugin_definition);
  46     $this->entityTypeManager = $entity_type_manager;
  47   }
  48
  49   /**
  50    * {@inheritdoc}
  51    */
  52   public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
  53     return new static(
  54       $configuration,
  55       $plugin_id,
  56       $plugin_definition,
  57       $container->get('entity_type.manager')
  58     );
  59   }
  60
  61   /**
  62    * {@inheritdoc}
  63    */
  64   public function view(EntityInterface $entity) {
  65     return [
  66       '#theme' => 'image_style',
  67       '#style_name' => $this->configuration['image_style'],
  68       '#title' => $entity->label(),
  69       '#alt' => $entity->label(),
  70       '#uri' => $entity->getFileUri(),
  71     ];
  72   }
  73
  74   /**
  75    * {@inheritdoc}
  76    */
  77   public function settingsForm(array $form, FormStateInterface $form_state) {
  78     $options = [];
  79     foreach ($this->entityTypeManager->getStorage('image_style')->loadMultiple() as $id => $image_style) {
  80       $options[$id] = $image_style->label();
  81     }
  82
  83     return [
  84       'image_style' => [
  85         '#type' => 'select',
  86         '#title' => $this->t('Image style'),
  87         '#description' => $this->t('Select image style to be used to display thumbnails.'),
  88         '#default_value' => $this->configuration['image_style'],
  89         '#options' => $options,
  90       ],
  91     ];
  92   }
  93
  94   /**
  95    * {@inheritdoc}
  96    */
  97   public function isApplicable(EntityTypeInterface $entity_type) {
  98     return $entity_type->isSubclassOf(FileInterface::class);
  99   }
 100
 101   /**
 102    * {@inheritdoc}
 103    */
 104   public function defaultConfiguration() {
 105     return [
 106       'image_style' => 'thumbnail',
 107     ] + parent::defaultConfiguration();
 108   }
 109
 110   /**
 111    * {@inheritdoc}
 112    */
 113   public function calculateDependencies() {
 114     $dependencies = parent::calculateDependencies();
 115     if ($image_style = $this->entityTypeManager->getStorage('image_style')->load($this->configuration['image_style'])) {
 116       $dependencies[$image_style->getConfigDependencyKey()][] = $image_style->getConfigDependencyName();
 117     }
 118     return $dependencies;
 119   }
 120
 121 }