item_public_status.patch

diff --git a/src/Plugin/Field/FieldFormatter/PdfDefault.php b/src/Plugin/Field/FieldFormatter/PdfDefault.php
index 1995201..7dbfb8d 100755
--- a/src/Plugin/Field/FieldFormatter/PdfDefault.php
+++ b/src/Plugin/Field/FieldFormatter/PdfDefault.php
@@ -5,8 +5,8 @@ namespace Drupal\pdf\Plugin\Field\FieldFormatter;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Field\FormatterBase;
 use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Site\Settings;
 use Drupal\Core\Form\FormStateInterface;
-use jjalvarezl\PDFjsViewerBundle;
 
 /**
  * @FieldFormatter(
@@ -165,7 +165,14 @@ class PdfDefault extends FormatterBase {
     $query = UrlHelper::buildQuery($extra_options);
     foreach ($items as $delta => $item) {
       if ($item->entity->getMimeType() == 'application/pdf') {
+        // Add flag for item public status.
         $file_url = file_create_url($item->entity->getFileUri());
+        $is_public = (boolean) $item->getEntity()->field_item_is_public->getValue()[0]['value'];
+        if ($is_public) {
+          $salt = Settings::getHashSalt();
+          $hash = hash('md5', $item->entity->getFileUri() . $salt . $is_public);
+          $file_url .= '?public=' . $hash;
+        }
         $iframe_src = file_create_url(drupal_get_path('module', 'pdf') . '/vendor/pdf.js/web/viewer.html') . '?file=' . rawurlencode($file_url);
         $iframe_src = !empty($query) && $keep_pdfjs ? $iframe_src . '#' . $query : $iframe_src;
         $html = [