From f498cef9a59677fb71e8e715b1f1ab54b20d93ac Mon Sep 17 00:00:00 2001
From: Justin Georgi <justin.georgi@gmail.com>
Date: Wed, 23 Oct 2024 21:01:32 -0700
Subject: [PATCH] Fix non-file page edit error

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>
---
 includes/GlModelViewer.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/GlModelViewer.php b/includes/GlModelViewer.php
index 7b7566f..369fae9 100644
--- a/includes/GlModelViewer.php
+++ b/includes/GlModelViewer.php
@@ -43,7 +43,7 @@ class GlModelViewer extends ImageHandler {
 
   public static function onAlternateEditPreview( EditPage $editor, Content $content, string &$previewHTML, ?ParserOutput &$parserOutput ) {
     $file = MediaWikiServices::getInstance()->getRepoGroup()->findFile($editor->getTitle());
-    if ($file->getMimeType() !== 'model/gltf-binary') {
+    if (!$file || $file->getMimeType() !== 'model/gltf-binary') {
       return true;
     }
     $out = $editor->getContext()->getOutput();