/* -*- 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

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