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<?php
namespace Drupal\media_entity\Plugin\Field\FieldFormatter;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\image\Plugin\Field\FieldFormatter\ImageFormatter;
use Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem;
use Drupal\Core\Render\RendererInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Entity\EntityStorageInterface;
class MediaThumbnailFormatter extends ImageFormatter {
protected $renderer;
public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, AccountInterface $current_user, EntityStorageInterface $image_style_storage, RendererInterface $renderer) {
parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings, $current_user, $image_style_storage);
$this->renderer = $renderer;
}
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['label'], $configuration['view_mode'], $configuration['third_party_settings'], $container
->get('current_user'), $container
->get('entity.manager')
->getStorage('image_style'), $container
->get('renderer'));
}
protected function needsEntityLoad(EntityReferenceItem $item) {
return !$item
->hasNewEntity();
}
public function settingsForm(array $form, FormStateInterface $form_state) {
$element = parent::settingsForm($form, $form_state);
$link_types = [
'content' => $this
->t('Content'),
'media' => $this
->t('Media entity'),
];
$element['image_link']['#options'] = $link_types;
return $element;
}
public function settingsSummary() {
$summary = parent::settingsSummary();
$link_types = [
'content' => $this
->t('Linked to content'),
'media' => $this
->t('Linked to media entity'),
];
$image_link_setting = $this
->getSetting('image_link');
if (isset($link_types[$image_link_setting])) {
$summary[] = $link_types[$image_link_setting];
}
return $summary;
}
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = [];
$media = $this
->getEntitiesToView($items, $langcode);
if (empty($media)) {
return $elements;
}
$url = NULL;
$image_link_setting = $this
->getSetting('image_link');
if ($image_link_setting == 'content') {
$entity = $items
->getEntity();
if (!$entity
->isNew()) {
$url = $entity
->toUrl();
}
}
elseif ($image_link_setting == 'media') {
$link_media = TRUE;
}
$image_style_setting = $this
->getSetting('image_style');
foreach ($media as $delta => $media_item) {
if (isset($link_media)) {
$url = $media_item
->toUrl();
}
$elements[$delta] = [
'#theme' => 'image_formatter',
'#item' => $media_item
->get('thumbnail'),
'#item_attributes' => [],
'#image_style' => $image_style_setting,
'#url' => $url,
];
$this->renderer
->addCacheableDependency($elements[$delta], $media_item);
}
$image_style = $this->imageStyleStorage
->load($image_style_setting);
$this->renderer
->addCacheableDependency($elements, $image_style);
return $elements;
}
public static function isApplicable(FieldDefinitionInterface $field_definition) {
$target_type = $field_definition
->getFieldStorageDefinition()
->getSetting('target_type');
return $target_type == 'media';
}
}