1 files changed, 38 insertions, 0 deletions
diff --git a/include/vcl/locktoplevels.hxx b/include/vcl/locktoplevels.hxx
new file mode 100644
index 0000000000..9d0bf5f39b
--- /dev/null
+++ b/include/vcl/locktoplevels.hxx
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <vcl/dllapi.h>
+#include <memory>
+
+namespace weld
+{
+class Widget;
+}
+
+struct TopLevelWindowLockerImpl;
+
+class VCL_DLLPUBLIC TopLevelWindowLocker
+{
+private:
+    std::unique_ptr<TopLevelWindowLockerImpl> m_xImpl;
+
+public:
+    TopLevelWindowLocker();
+    ~TopLevelWindowLocker();
+
+    // lock all toplevels, except the argument
+    void incBusy(const weld::Widget* pIgnore);
+    // unlock previous lock
+    void decBusy();
+    bool isBusy() const;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */