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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : #ifndef INCLUDED_SVX_SDRUNDOMANAGER_HXX
      20             : #define INCLUDED_SVX_SDRUNDOMANAGER_HXX
      21             : 
      22             : #include <svx/svxdllapi.h>
      23             : #include <sal/types.h>
      24             : #include <editeng/editund2.hxx>
      25             : #include <tools/link.hxx>
      26             : 
      27             : class SVX_DLLPUBLIC SdrUndoManager : public EditUndoManager
      28             : {
      29             : private:
      30             :     using EditUndoManager::Undo;
      31             :     using EditUndoManager::Redo;
      32             : 
      33             :     Link            maEndTextEditHdl;
      34             :     SfxUndoAction*  mpLastUndoActionBeforeTextEdit;
      35             :     bool            mbEndTextEditTriggeredFromUndo;
      36             : 
      37             : protected:
      38             :     // call to check for TextEdit active
      39             :     bool isTextEditActive() const;
      40             : 
      41             : public:
      42             :     SdrUndoManager(sal_uInt16 nMaxUndoActionCount = 20);
      43             :     virtual ~SdrUndoManager();
      44             : 
      45             :     /// react depending on edit mode and if no more undo is possible
      46             :     virtual bool Undo() SAL_OVERRIDE;
      47             :     virtual bool Redo() SAL_OVERRIDE;
      48             : 
      49             :     // #i123350#
      50             :     virtual void Clear() SAL_OVERRIDE;
      51             : 
      52             :     // Call for the view which starts the interactive text edit. Use link to
      53             :     // activate (start text edit) and empty link to reset (end text edit). On
      54             :     // reset all text edit actions will be removed from this undo manager to
      55             :     // restore the state before activation
      56             :     void SetEndTextEditHdl(const Link& rLink);
      57             : 
      58             :     // check from outside if we are inside a callback for ending text edit. This
      59             :     // is needed to detect inside end text edit if it is a regular one or triggered
      60             :     // by a last undo during text edit
      61           0 :     bool isEndTextEditTriggeredFromUndo() { return mbEndTextEditTriggeredFromUndo; }
      62             : };
      63             : 
      64             : #endif // INCLUDED_SVX_SDRUNDOMANAGER_HXX
      65             : 
      66             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */