From fdb3a8fffe5924f2222fdbcbc318533b0b994908 Mon Sep 17 00:00:00 2001
From: Ant Brown <ant@catalyst.net.nz>
Date: Wed, 17 Nov 2021 09:34:07 +1300
Subject: [PATCH] Check we're not trying to delete default media thumbnails
 before saying they're inaccessible

---
 src/Form/ConfirmDeleteMediaAndFile.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Form/ConfirmDeleteMediaAndFile.php b/src/Form/ConfirmDeleteMediaAndFile.php
index 64c1bff3c..154d45cc0 100644
--- a/src/Form/ConfirmDeleteMediaAndFile.php
+++ b/src/Form/ConfirmDeleteMediaAndFile.php
@@ -134,6 +134,15 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
           $file = File::load($target_id);
           if ($file) {
             if (!$file->access('delete', $this->currentUser)) {
+              // May not be allowed access because it is a default thumbnail for media type.
+              if ($field->getName() == 'thumbnail') {
+                $default_thumbnail_filename = $entity->getSource()->getPluginDefinition()['default_thumbnail_filename'];
+                $default_thumbnail_uri = \Drupal::config('media.settings')
+                  ->get('icon_base_uri') . '/' . $default_thumbnail_filename;
+                if ($default_thumbnail_uri == $file->getFileUri()) {
+                  continue;
+                }
+              }              
               $inaccessible_entities[] = $file;
               continue;
             }