From 97d5be9d81c3bb32014721c857f35ad10ea71054 Mon Sep 17 00:00:00 2001
From: James Graham <james.h.graham@protonmail.com>
Date: Mon, 5 May 2025 15:45:50 +0100
Subject: [PATCH] Make sure that ChatDocumentHandler can handle the document
 being changed to a nullptr

Make sure that ChatDocumentHandler can handle the document being changed to a nullptr.

BUG: 501950
---
 src/libneochat/chatdocumenthandler.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libneochat/chatdocumenthandler.cpp b/src/libneochat/chatdocumenthandler.cpp
index ff0946d07..4cd354f11 100644
--- a/src/libneochat/chatdocumenthandler.cpp
+++ b/src/libneochat/chatdocumenthandler.cpp
@@ -118,6 +118,10 @@ ChatDocumentHandler::ChatDocumentHandler(QObject *parent)
         });
     });
     connect(this, &ChatDocumentHandler::documentChanged, this, [this]() {
+        if (!m_document) {
+            m_highlighter->setDocument(nullptr);
+            return;
+        }
         m_highlighter->setDocument(m_document->textDocument());
     });
     connect(this, &ChatDocumentHandler::cursorPositionChanged, this, [this]() {