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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_FRAMEWORK_DOCUMENTUNDOGUARD_HXX
#define INCLUDED_FRAMEWORK_DOCUMENTUNDOGUARD_HXX
#include <framework/fwkdllapi.h>
#include <com/sun/star/uno/Reference.hxx>
#include <rtl/ref.hxx>
namespace com::sun::star::uno { class XInterface; }
namespace com::sun::star::document { class XUndoManager; }
namespace framework
{
class UndoManagerContextListener;
//= DocumentUndoGuard
/** a helper class guarding the Undo manager of a document
This class guards, within a given scope, the Undo Manager of a document (or another component supporting
the XUndoManagerSupplier interface). When entering the scope (i.e. when the <code>DocumentUndoGuard</code>
instances is constructed), the current state of the undo contexts of the undo manager is examined.
Upon leaving the scope (i.e. when the <code>DocumentUndoGuard</code> is destructed), the guard will execute
as many calls to <member scope="css::document">XUndoManager::leaveUndoContext</member> as are
necessary to restore the manager's initial state.
*/
class FWK_DLLPUBLIC DocumentUndoGuard
{
public:
DocumentUndoGuard( const css::uno::Reference< css::uno::XInterface >& i_undoSupplierComponent );
~DocumentUndoGuard();
private:
css::uno::Reference< css::document::XUndoManager > mxUndoManager;
::rtl::Reference< UndoManagerContextListener > mxContextListener;
};
} // namespace framework
#endif // INCLUDED_FRAMEWORK_DOCUMENTUNDOGUARD_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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