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diff --git a/basctl/source/inc/docsignature.hxx b/basctl/source/inc/docsignature.hxx
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+++ b/basctl/source/inc/docsignature.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_BASCTL_SOURCE_INC_DOCSIGNATURE_HXX
+#define INCLUDED_BASCTL_SOURCE_INC_DOCSIGNATURE_HXX
+
+#include <sfx2/signaturestate.hxx>
+#include <vcl/weld.hxx>
+#include <memory>
+
+namespace basctl
+{
+
+
+    class ScriptDocument;
+
+    /// encapsulates (actions on) the signature/state of a document
+    class DocumentSignature
+    {
+    public:
+        /** creates a DocumentSignature instance for the given document
+
+            If the given ScriptDocument instance refers to the application, or to a document
+            which does not support being signed, the DocumentSignature instance is invalid afterwards.
+        */
+        explicit DocumentSignature (ScriptDocument const&);
+        ~DocumentSignature();
+
+        /** determines whether the instance is valid
+
+            An instance is valid if and only if it has been constructed with a document
+            which supports signatures.
+        */
+        bool    supportsSignatures() const;
+
+        /** signs the scripting content inside the document
+
+            @precond
+                isValid returns <TRUE/>
+        */
+        void        signScriptingContent(weld::Window* pDialogParent) const;
+
+        /** retrieves the state of the signature of the scripting content inside the document
+
+            If the instance is not valid, then SIGNATURESTATE_NOSIGNATURES is returned.
+        */
+        SignatureState getScriptingSignatureState() const;
+
+    private:
+        DocumentSignature() = delete;
+
+    private:
+        struct Impl;
+        std::unique_ptr<Impl> m_pImpl;
+    };
+
+
+} // namespace basctl
+
+
+#endif // INCLUDED_BASCTL_SOURCE_INC_DOCSIGNATURE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */