/* -*- 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_SW_INC_UNOCRSR_HXX

#define INCLUDED_SW_INC_UNOCRSR_HXX

#include "swcrsr.hxx"

#include <svl/SfxBroadcaster.hxx>

#include <svl/lstner.hxx>

#include <utility>

namespace sw

{

    struct SW_DLLPUBLIC UnoCursorHint final : public SfxHint

    {

        UnoCursorHint() : SfxHint(SfxHintId::SwUnoCursorHint) {}

        virtual ~UnoCursorHint() override;

    };

}

class SAL_DLLPUBLIC_RTTI SwUnoCursor : public virtual SwCursor

{

private:

    bool m_bRemainInSection : 1;

    bool m_bSkipOverHiddenSections : 1;

    bool m_bSkipOverProtectSections : 1;

public:

    SfxBroadcaster m_aNotifier;

    SwUnoCursor( const SwPosition &rPos );

    virtual ~SwUnoCursor() override;

protected:

    virtual const SwContentFrame* DoSetBidiLevelLeftRight(

        bool & io_rbLeft, bool bVisualAllowed, bool bInsertCursor) override;

    virtual void DoSetBidiLevelUpDown() override;

public:

    // Does a selection of content exist in table?

    // Return value indicates if the cursor remains at its old position.

    virtual bool IsSelOvr( SwCursorSelOverFlags eFlags =

                                 SwCursorSelOverFlags::CheckNodeSection |

                                 SwCursorSelOverFlags::Toggle |

                                 SwCursorSelOverFlags::ChangePos ) override;

    virtual bool IsReadOnlyAvailable() const override;

    bool IsRemainInSection() const          { return m_bRemainInSection; }

    void SetRemainInSection( bool bFlag )   { m_bRemainInSection = bFlag; }

    virtual bool IsSkipOverProtectSections() const override

                                    { return m_bSkipOverProtectSections; }

    void SetSkipOverProtectSections( bool bFlag )

                                    { m_bSkipOverProtectSections = bFlag; }

    virtual bool IsSkipOverHiddenSections() const override

                                    { return m_bSkipOverHiddenSections; }

    void SetSkipOverHiddenSections( bool bFlag )

                                    { m_bSkipOverHiddenSections = bFlag; }

};

class SwUnoTableCursor final : public virtual SwUnoCursor, public virtual SwTableCursor

{

    // The selection has the same order as the table boxes, i.e.

    // if something is deleted from the one array at a certain position

    // it has also to be deleted from the other!

    SwCursor m_aTableSel;

    using SwTableCursor::MakeBoxSels;

public:

    SwUnoTableCursor( const SwPosition& rPos );

    virtual ~SwUnoTableCursor() override;

    // Does a selection of content exist in table?

    // Return value indicates if the cursor remains at its old position.

    virtual bool IsSelOvr( SwCursorSelOverFlags eFlags =

                                 SwCursorSelOverFlags::CheckNodeSection |

                                 SwCursorSelOverFlags::Toggle |

                                 SwCursorSelOverFlags::ChangePos ) override;

    void MakeBoxSels();

          SwCursor& GetSelRing()            { return m_aTableSel; }

    const SwCursor& GetSelRing() const      { return m_aTableSel; }

};

namespace sw

{

    class UnoCursorPointer final : public SfxListener

    {

        public:

            UnoCursorPointer()

           {}

            UnoCursorPointer(std::shared_ptr<SwUnoCursor> pCursor)

                : m_pCursor(std::move(pCursor))

            {

                StartListening(m_pCursor->m_aNotifier);

            }

            UnoCursorPointer(const UnoCursorPointer& rOther)

                : SfxListener()

                , m_pCursor(rOther.m_pCursor)

            {

                if(m_pCursor)

                    StartListening(m_pCursor->m_aNotifier);

            }

            virtual ~UnoCursorPointer() override

            {

                if(m_pCursor)

                    EndListening(m_pCursor->m_aNotifier);

            }

            virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override

            {

                if(m_pCursor)

                {

                    if(rHint.GetId() == SfxHintId::SwUnoCursorHint)

                        EndListening(rBC);

                }

                if(!GetBroadcasterCount())

                    m_pCursor.reset();

            };

            SwUnoCursor* get() const

                { return m_pCursor.get(); }

            SwUnoCursor* operator->() const

                { return get(); }

            SwUnoCursor& operator*() const

                { return *get(); }

            UnoCursorPointer& operator=(const UnoCursorPointer& aOther)

            {

                if (m_pCursor)

                {

                    EndListening(m_pCursor->m_aNotifier);

                }

                if(aOther.m_pCursor)

                    StartListening(aOther.m_pCursor->m_aNotifier);

                m_pCursor = aOther.m_pCursor;

                return *this;

            }

            explicit operator bool() const

                { return static_cast<bool>(m_pCursor); }

            void reset(const std::shared_ptr<SwUnoCursor>& pNew)

            {

                if(pNew)

                    StartListening(pNew->m_aNotifier);

                if (m_pCursor)

                    EndListening(m_pCursor->m_aNotifier);

                m_pCursor = pNew;

            }

        private:

            std::shared_ptr<SwUnoCursor> m_pCursor;

    };

}

#endif

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