From dee064a7587b1bc5504e2e79cec1c02f7b5fc898 Mon Sep 17 00:00:00 2001
From: Tobias Fella <fella@posteo.de>
Date: Mon, 15 May 2023 20:57:19 +0200
Subject: [PATCH] Fix crash in room switching

---
 src/chatdocumenthandler.h |  2 +-
 src/roommanager.cpp       | 10 +++++++---
 src/roommanager.h         |  2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/chatdocumenthandler.h b/src/chatdocumenthandler.h
index 76136ca4d..89807f521 100644
--- a/src/chatdocumenthandler.h
+++ b/src/chatdocumenthandler.h
@@ -159,7 +159,7 @@ private:
 
     bool m_isEdit = false;
 
-    QQuickTextDocument *m_document;
+    QPointer<QQuickTextDocument> m_document;
 
     QPointer<NeoChatRoom> m_room;
     bool completionVisible = false;
diff --git a/src/roommanager.cpp b/src/roommanager.cpp
index 852ca6feb..cb8d6d0be 100644
--- a/src/roommanager.cpp
+++ b/src/roommanager.cpp
@@ -131,9 +131,13 @@ void RoomManager::enterRoom(NeoChatRoom *room)
     }
     if (m_currentRoom && m_chatDocumentHandler) {
         // We're doing these things here because it is critical that they are switched at the same time
-        m_currentRoom->setSavedText(m_chatDocumentHandler->document()->textDocument()->toPlainText());
-        m_chatDocumentHandler->setRoom(room);
-        m_chatDocumentHandler->document()->textDocument()->setPlainText(room->savedText());
+        if (m_chatDocumentHandler->document()) {
+            m_currentRoom->setSavedText(m_chatDocumentHandler->document()->textDocument()->toPlainText());
+            m_chatDocumentHandler->setRoom(room);
+            m_chatDocumentHandler->document()->textDocument()->setPlainText(room->savedText());
+        } else {
+            m_chatDocumentHandler->setRoom(room);
+        }
     }
     m_lastCurrentRoom = std::exchange(m_currentRoom, room);
     Q_EMIT currentRoomChanged();
diff --git a/src/roommanager.h b/src/roommanager.h
index 535202bbe..54b4106bb 100644
--- a/src/roommanager.h
+++ b/src/roommanager.h
@@ -234,5 +234,5 @@ private:
     QString m_arg;
     KConfig m_config;
     KConfigGroup m_lastRoomConfig;
-    ChatDocumentHandler *m_chatDocumentHandler;
+    QPointer<ChatDocumentHandler> m_chatDocumentHandler;
 };