From 456379cf84ad25ad75af09ca582c7b75f72af918 Mon Sep 17 00:00:00 2001
From: Diego Iastrubni <diegoiast@gmail.com>
Date: Sat, 14 Feb 2026 22:06:31 +0200
Subject: [PATCH] qmdiEditor: fix crash on load/save when moving fast (162)

If gemini is correct, the cause of the crahses describes in #162 are the
`QApplication::processEvents();` used to modify the mouse cursor
(otherwise the call has no effect).

A side effect, is that the widget might be destroyed due to that call.

This should fix it.
---
 src/widgets/qmdieditor.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/widgets/qmdieditor.cpp b/src/widgets/qmdieditor.cpp
index b8d782f..9ac87db 100644
--- a/src/widgets/qmdieditor.cpp
+++ b/src/widgets/qmdieditor.cpp
@@ -1175,8 +1175,15 @@ bool qmdiEditor::saveFile(const QString &newFileName, bool makeExecutable) {
         return false;
     }
 
+    QPointer<qmdiEditor> safeThis(this);
     QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
     QApplication::processEvents();
+
+    if (!safeThis) {
+        QApplication::restoreOverrideCursor();
+        return false;
+    }
+
     auto textStream = QTextStream(&file);
     auto cursor = QTextCursor(textEditor->document());
     auto op = Qutepart::AtomicEditOperation(textEditor);
@@ -1363,9 +1370,15 @@ void qmdiEditor::loadContent(bool useBackup) {
     setModificationsLookupEnabled(false);
     hideBannerMessage();
     setReadOnly(false);
+    QPointer<qmdiEditor> safeThis(this);
     QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
     QApplication::processEvents();
 
+    if (!safeThis) {
+        QApplication::restoreOverrideCursor();
+        return;
+    }
+
     QFile file;
     auto loadedFromBackup = false;
     if (useBackup && savedState.contains(StateConstants::UUID)) {