From ab485dcf32eeaa23cca3f2bdb7f1187893362032 Mon Sep 17 00:00:00 2001
From: Daniel Weipert <code@drogueronin.de>
Date: Tue, 3 Nov 2020 15:04:39 +0100
Subject: Checks whether 'file' is set in codeEditorSettings $args

---
 src/ThemeEditor.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ThemeEditor.php b/src/ThemeEditor.php
index 194b59d..60ae997 100644
--- a/src/ThemeEditor.php
+++ b/src/ThemeEditor.php
@@ -40,7 +40,7 @@ class ThemeEditor
      * @return array
      */
     public function codeEditorSettings($settings, $args) {
-        if (strpos($args['file'], '.twig') !== false) {
+        if (isset($args['file']) && strpos($args['file'], '.twig') !== false) {
             $settings['codemirror']['mode'] = ['name' => 'twig', 'base' => 'text/html'];
         }
 
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