preview_entity/preview_entity.module at master · hoppinger/preview_entity · GitHub

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<?php

use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityPublishedInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\RevisionableInterface;
use Drupal\Core\Form\FormStateInterface;

/**
 * @param array $build
 * @param EntityInterface $entity
 * @param EntityViewDisplayInterface $display
 */
function preview_entity_node_view_alter(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display) {
  if ($display->getMode() == 'search_index') {
    return;
  }

  /** @var \Drupal\preview_entity\LinkBuilderInterface $builder */
  $builder = \Drupal::service('preview_entity.link_builder');

  $published = TRUE;
  if (($entity instanceof EntityPublishedInterface) && !$entity->isPublished()) {
    $published = FALSE;
  }
  if (($entity instanceof RevisionableInterface) && !$entity->isDefaultRevision()) {
    $published = FALSE;
  }

  $text_attributes = [];
  if ($published) {
    $link = $builder->buildPublishedLink($entity);
    $text = 'This content is published. Go to @link to view it on the live site.';

  } else {
    $valid_until = $builder->determineValidUntil();
    $valid_until_string = \Drupal::service('date.formatter')
      ->format($valid_until, 'medium');

    $link = $builder->buildPreviewLink($entity, $valid_until);
    $text = 'This content is not published. Go to @link to preview it on the live site. This link will be valid until :date.';
    $text_attributes[':date'] = $valid_until_string;
  }

  $build['preview_links'] = [
    '#theme_wrappers' => ['preview_entity_container'],
    '#text' => $text,
    '#text_attributes' => $text_attributes,
    '#attached' => ['library' => ['preview_entity/preview_entity']],
    'link' => $link,
    '#cache' => ['max-age' => 0],
  ];
}

function preview_entity_theme() {
  return [
    'preview_entity_container' => [
      'render element' => 'element',
    ],
  ];
}

function template_preprocess_preview_entity_container(&$variables) {
  $element = $variables['element'];

  $variables['link'] = $element['#children'];

  $variables['text'] = $element['#text'];
  $variables['text_attributes'] = !empty($element['#text_attributes']) ? $element['#text_attributes'] : [];
  $variables['text_attributes']['@link'] = $variables['link'];
}

/**
 * Implements hook_field_widget_WIDGET_TYPE_form_alter().
 */

function preview_entity_field_widget_link_default_form_alter(&$element, &$form_state, $context) {
  if($element['uri']['#type'] == 'entity_autocomplete') {
    if(isset($element['uri']['#field_prefix'])){
      $element['uri']['#description'] = t('Begin de titel van een entiteit te typen om deze te selecteren.');
    }
    else {
      $element['uri']['#description'] = t('Begin de titel van een entiteit te typen om deze te selecteren. Een externe URL zoals %url is ook geldig.',  ['%url' => 'http://example.com']);
    }
  }
}