/* -*- 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
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