From 076018b74b5dc98462f203a132b4697b6c9e22ff Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Tue, 18 May 2021 21:24:46 +0200
Subject: [PATCH] PDFViewer: Ignore wheel events when there is no document
 loaded

---
 Userland/Applications/PDFViewer/PDFViewer.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Userland/Applications/PDFViewer/PDFViewer.cpp b/Userland/Applications/PDFViewer/PDFViewer.cpp
index 87902dc39f..c93cc495b2 100644
--- a/Userland/Applications/PDFViewer/PDFViewer.cpp
+++ b/Userland/Applications/PDFViewer/PDFViewer.cpp
@@ -72,6 +72,9 @@ void PDFViewer::paint_event(GUI::PaintEvent& event)
 
 void PDFViewer::mousewheel_event(GUI::MouseEvent& event)
 {
+    if (!m_document)
+        return;
+
     bool scrolled_down = event.wheel_delta() > 0;
 
     if (event.ctrl()) {