/* -*- 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_SVX_SDRUNDOMANAGER_HXX

#define INCLUDED_SVX_SDRUNDOMANAGER_HXX

#include <svx/svxdllapi.h>

#include <editeng/editund2.hxx>

#include <tools/link.hxx>

class SfxObjectShell;

class SVXCORE_DLLPUBLIC SdrUndoManager : public EditUndoManager

{

private:

    using EditUndoManager::Undo;

    using EditUndoManager::Redo;

    Link<SdrUndoManager*, void> maEndTextEditHdl;

    SfxUndoAction* mpLastUndoActionBeforeTextEdit;

    size_t mnRedoActionCountBeforeTextEdit;

    bool mbEndTextEditTriggeredFromUndo;

    SfxObjectShell* m_pDocSh;

protected:

    // call to check for TextEdit active

    bool isTextEditActive() const;

    virtual void EmptyActionsChanged() override;

public:

    SdrUndoManager();

    virtual ~SdrUndoManager() override;

    /// react depending on edit mode and if no more undo is possible

    virtual bool Undo() override;

    virtual bool Redo() override;

    // #i123350#

    virtual void Clear() override;

    // Call for the view which starts the interactive text edit. Use link to

    // activate (start text edit) and empty link to reset (end text edit). On

    // reset all text edit actions will be removed from this undo manager to

    // restore the state before activation

    void SetEndTextEditHdl(const Link<SdrUndoManager*, void>& rLink);

    // check from outside if we are inside a callback for ending text edit. This

    // is needed to detect inside end text edit if it is a regular one or triggered

    // by a last undo during text edit

    bool isEndTextEditTriggeredFromUndo() const { return mbEndTextEditTriggeredFromUndo; }

    void SetDocShell(SfxObjectShell* pDocShell);

    size_t GetRedoActionCountBeforeTextEdit() const { return mnRedoActionCountBeforeTextEdit; }

};

#endif // INCLUDED_SVX_SDRUNDOMANAGER_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */