include/svx/sdrundomanager.hxx

   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 <editeng/editund2.hxx>
  24 #include <tools/link.hxx>
  25
  26 class SfxObjectShell;
  27
  28 class SVXCORE_DLLPUBLIC SdrUndoManager : public EditUndoManager
  29 {
  30 private:
  31     using EditUndoManager::Undo;
  32     using EditUndoManager::Redo;
  33
  34     Link<SdrUndoManager*, void> maEndTextEditHdl;
  35     SfxUndoAction* mpLastUndoActionBeforeTextEdit;
  36     size_t mnRedoActionCountBeforeTextEdit;
  37     bool mbEndTextEditTriggeredFromUndo;
  38
  39     SfxObjectShell* m_pDocSh;
  40
  41 protected:
  42     // call to check for TextEdit active
  43     bool isTextEditActive() const;
  44     virtual void EmptyActionsChanged() override;
  45
  46 public:
  47     SdrUndoManager();
  48     virtual ~SdrUndoManager() override;
  49
  50     /// react depending on edit mode and if no more undo is possible
  51     virtual bool Undo() override;
  52     virtual bool Redo() override;
  53
  54     // #i123350#
  55     virtual void Clear() override;
  56
  57     // Call for the view which starts the interactive text edit. Use link to
  58     // activate (start text edit) and empty link to reset (end text edit). On
  59     // reset all text edit actions will be removed from this undo manager to
  60     // restore the state before activation
  61     void SetEndTextEditHdl(const Link<SdrUndoManager*, void>& rLink);
  62
  63     // check from outside if we are inside a callback for ending text edit. This
  64     // is needed to detect inside end text edit if it is a regular one or triggered
  65     // by a last undo during text edit
  66     bool isEndTextEditTriggeredFromUndo() const { return mbEndTextEditTriggeredFromUndo; }
  67     void SetDocShell(SfxObjectShell* pDocShell);
  68     size_t GetRedoActionCountBeforeTextEdit() const { return mnRedoActionCountBeforeTextEdit; }
  69 };
  70
  71 #endif // INCLUDED_SVX_SDRUNDOMANAGER_HXX
  72
  73 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */