From 2f273daea114a6361813d554c01bb5c9b9789322 Mon Sep 17 00:00:00 2001
From: Florian Glombik <florian.glombik@tum.de>
Date: Thu, 28 Nov 2024 13:50:34 +0100
Subject: [PATCH] Add a warning when leaving the page with unsaved changes

---
 src/main/webapp/app/lecture/lecture-update.component.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/webapp/app/lecture/lecture-update.component.ts b/src/main/webapp/app/lecture/lecture-update.component.ts
index b9f94733cfe1..f97af4073ca0 100644
--- a/src/main/webapp/app/lecture/lecture-update.component.ts
+++ b/src/main/webapp/app/lecture/lecture-update.component.ts
@@ -168,6 +168,10 @@ export class LectureUpdateComponent implements OnInit, OnDestroy {
     }
 
     ngOnDestroy() {
+        if (this.isChangeMadeToTitleOrPeriodSection) {
+            // TODO add a proper modal and find out where the changes are
+            alert('Unsaved changes in Title and/or period section, are you sure you want to leave without saving?');
+        }
         this.subscriptions.unsubscribe();
     }