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diff --git a/offapi/com/sun/star/document/XActionLockable.idl b/offapi/com/sun/star/document/XActionLockable.idl
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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 __com_sun_star_document_XActionLockable_idl__
+#define __com_sun_star_document_XActionLockable_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+
+
+
+module com {   module sun {   module star {   module document {
+
+
+/** makes it possible to prevent object internal updates for a certain period
+    to be able to quickly change multiple parts of the objects, where the
+    updates would invalidate each other, anyway.
+ */
+published interface XActionLockable: com::sun::star::uno::XInterface
+{
+    /** @returns
+            `TRUE` if at least one lock exists.
+     */
+    boolean isActionLocked();
+
+    /** increments the lock count of the object by one.
+     */
+    void addActionLock();
+
+    /** decrements the lock count of the object by one.
+     */
+    void removeActionLock();
+
+    /** sets the locking level.
+
+        <p>This method is used for debugging purposes. The programming
+        environment can restore the locking after a break of a debug
+        session.</p>
+     */
+    void setActionLocks( [in] short nLock );
+
+    /** resets the locking level.
+
+        <p>This method is used for debugging purposes. The debugging
+        environment of a programming language can reset the locks
+        to allow refreshing of the view if a breakpoint is reached or
+        step execution is used. </p>
+     */
+    short resetActionLocks();
+
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */