--- /dev/null
+<?php
+
+namespace Drupal\blazy\Plugin\views\field;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\views\Plugin\views\field\FieldPluginBase;
+use Drupal\views\ResultRow;
+use Drupal\blazy\Dejavu\BlazyDefault;
+use Drupal\blazy\BlazyManagerInterface;
+use Drupal\blazy\Dejavu\BlazyEntityTrait;
+use Drupal\blazy\Dejavu\BlazyVideoTrait;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Defines a base views field plugin to render a preview of supported fields.
+ */
+abstract class BlazyViewsFieldPluginBase extends FieldPluginBase {
+
+ use BlazyEntityTrait;
+ use BlazyVideoTrait;
+
+ /**
+ * The blazy service manager.
+ *
+ * @var \Drupal\blazy\BlazyManagerInterface
+ */
+ protected $blazyManager;
+
+ /**
+ * Constructs a BlazyViewsFieldPluginBase object.
+ */
+ public function __construct(array $configuration, $plugin_id, $plugin_definition, BlazyManagerInterface $blazy_manager) {
+ parent::__construct($configuration, $plugin_id, $plugin_definition);
+ $this->blazyManager = $blazy_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static($configuration, $plugin_id, $plugin_definition, $container->get('blazy.manager'));
+ }
+
+ /**
+ * Returns the blazy admin.
+ */
+ public function blazyAdmin() {
+ return \Drupal::service('blazy.admin');
+ }
+
+ /**
+ * Returns the blazy manager.
+ */
+ public function blazyManager() {
+ return $this->blazyManager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function defineOptions() {
+ $options = parent::defineOptions();
+
+ foreach ($this->getDefaultValues() as $key => $default) {
+ $options[$key] = ['default' => $default];
+ }
+ return $options;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
+ $definitions = $this->getScopedFormElements();
+
+ $form += $this->blazyAdmin()->baseForm($definitions);
+
+ foreach ($this->getDefaultValues() as $key => $default) {
+ if (isset($form[$key])) {
+ $form[$key]['#default_value'] = isset($this->options[$key]) ? $this->options[$key] : $default;
+ $form[$key]['#weight'] = 0;
+ if (in_array($key, ['box_style', 'box_media_style'])) {
+ $form[$key]['#empty_option'] = $this->t('- None -');
+ }
+ }
+ }
+
+ if (isset($form['view_mode'])) {
+ $form['view_mode']['#description'] = $this->t('Will fallback to this view mode, else entity label.');
+ }
+ parent::buildOptionsForm($form, $form_state);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function render(ResultRow $values) {
+ return [];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function query() {
+ // Do nothing -- to override the parent query.
+ }
+
+ /**
+ * Defines the default values.
+ */
+ public function getDefaultValues() {
+ return [
+ 'box_style' => '',
+ 'box_media_style' => '',
+ 'image_style' => '',
+ 'media_switch' => 'media',
+ 'ratio' => 'fluid',
+ 'thumbnail_style' => '',
+ 'view_mode' => 'default',
+ ];
+ }
+
+ /**
+ * Merges the settings.
+ */
+ public function mergedViewsSettings() {
+ $settings = [];
+
+ // Only fetch what we already asked for.
+ foreach ($this->getDefaultValues() as $key => $default) {
+ $settings[$key] = isset($this->options[$key]) ? $this->options[$key] : $default;
+ }
+
+ $settings['count'] = count($this->view->result);
+ $settings['current_view_mode'] = $this->view->current_display;
+ $settings['view_name'] = $this->view->storage->id();
+
+ return array_merge(BlazyDefault::entitySettings(), $settings);
+ }
+
+ /**
+ * Defines the scope for the form elements.
+ */
+ public function getScopedFormElements() {
+ return [
+ 'settings' => array_filter($this->options),
+ 'target_type' => $this->view->getBaseEntityType()->id(),
+ 'thumbnail_style' => TRUE,
+ ];
+ }
+
+}