From 475c964ed94c9503c83515c258a0dfb59303a491 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Mon, 15 Jun 2020 10:23:09 +0200
Subject: [PATCH] Allow tracking codemirror's scroll offset within a dedicated
 input

---
 wcfsetup/install/files/acp/templates/codemirror.tpl | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/wcfsetup/install/files/acp/templates/codemirror.tpl b/wcfsetup/install/files/acp/templates/codemirror.tpl
index fe7b64c74b..5a27c7e6f7 100644
--- a/wcfsetup/install/files/acp/templates/codemirror.tpl
+++ b/wcfsetup/install/files/acp/templates/codemirror.tpl
@@ -106,6 +106,17 @@
 					}
 				});
 			}
+			
+			var scrollOffsetStorage = element;
+			do {
+				scrollOffsetStorage = scrollOffsetStorage.nextElementSibling;
+			} while (scrollOffsetStorage && !scrollOffsetStorage.classList.contains('codeMirrorScrollOffset'));
+			if (scrollOffsetStorage) {
+				element.codemirror.scrollTo(null, scrollOffsetStorage.value);
+				element.codemirror.on('scroll', function (cm) {
+					scrollOffsetStorage.value = cm.getScrollInfo().top;
+				});
+			}
 		});
 	});
 </script>
-- 
2.20.1