From 69e9190038e845b5fbb8bb23b71f890f4d0ba018 Mon Sep 17 00:00:00 2001
From: Ryan Wyllie <ryan@moodle.com>
Date: Wed, 1 May 2019 13:58:09 +0800
Subject: [PATCH] MDL-65450 tinymce: fix full screen mode

---
 lib/editor/tinymce/module.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/editor/tinymce/module.js b/lib/editor/tinymce/module.js
index ee8e4d96ae3..e5eb76cac52 100644
--- a/lib/editor/tinymce/module.js
+++ b/lib/editor/tinymce/module.js
@@ -68,9 +68,11 @@ M.editor_tinymce.init_editor = function(Y, editorid, options) {
         });
         Y.use('event', 'moodle-core-event', function(Y) {
             var form = Y.one(document.getElementById(editor.id)).ancestor('form');
-            form.on(M.core.event.FORM_SUBMIT_AJAX, function() {
-                editor.save();
-            }, this)
+            if (form) {
+                form.on(M.core.event.FORM_SUBMIT_AJAX, function() {
+                    editor.save();
+                }, this);
+            }
         });
     };