1 files changed, 16 insertions, 0 deletions
diff --git a/desktop-widgets/command_base.cpp b/desktop-widgets/command_base.cpp
index 24ce81225..26a587f7c 100644
--- a/desktop-widgets/command_base.cpp
+++ b/desktop-widgets/command_base.cpp
@@ -1,17 +1,33 @@
 // SPDX-License-Identifier: GPL-2.0
 
 #include "command_base.h"
+#include "core/qthelper.h" // for updateWindowTitle()
 
 namespace Command {
 
 static QUndoStack undoStack;
 
 // General commands
+void init()
+{
+	QObject::connect(&undoStack, &QUndoStack::cleanChanged, &updateWindowTitle);
+}
+
 void clear()
 {
 	undoStack.clear();
 }
 
+void setClean()
+{
+	undoStack.setClean();
+}
+
+bool isClean()
+{
+	return undoStack.isClean();
+}
+
 QAction *undoAction(QObject *parent)
 {
 	return undoStack.createUndoAction(parent, QCoreApplication::translate("Command", "&Undo"));