/* -*- 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_SOURCE_INC_FMUNDO_HXX

#define INCLUDED_SVX_SOURCE_INC_FMUNDO_HXX

#include <svx/svdundo.hxx>

#include <svx/svdouno.hxx>

#include "fmscriptingenv.hxx"

#include <com/sun/star/util/XModifyListener.hpp>

#include <com/sun/star/beans/XPropertySet.hpp>

#include <com/sun/star/beans/XPropertyChangeListener.hpp>

#include <com/sun/star/beans/PropertyChangeEvent.hpp>

#include <com/sun/star/script/ScriptEventDescriptor.hpp>

#include <com/sun/star/container/XIndexContainer.hpp>

#include <com/sun/star/container/XContainerListener.hpp>

#include <com/sun/star/container/ContainerEvent.hpp>

#include <com/sun/star/container/XNameContainer.hpp>

#include <cppuhelper/implbase.hxx>

#include <svl/lstner.hxx>

#include <memory>

#include <map>

class FmFormModel;

class FmFormObj;

class SdrObject;

struct PropertySetInfo;

class ScriptEventListenerWrapper;

class FmUndoPropertyAction final : public SdrUndoAction

{

    css::uno::Reference< css::beans::XPropertySet> xObj;

    OUString               aPropertyName;

    css::uno::Any          aNewValue;

    css::uno::Any          aOldValue;

public:

    FmUndoPropertyAction(FmFormModel& rMod, const css::beans::PropertyChangeEvent& evt);

    virtual void Undo() override;

    virtual void Redo() override;

    virtual OUString GetComment() const override;

};

class FmUndoContainerAction final : public SdrUndoAction

{

public:

    enum Action

    {

        Inserted = 1,

        Removed  = 2

    };

    FmUndoContainerAction(FmFormModel& rMod,

                          Action _eAction,

                          const css::uno::Reference< css::container::XIndexContainer >& xCont,

                          const css::uno::Reference< css::uno::XInterface >& xElem,

                          sal_Int32 nIdx);

    virtual ~FmUndoContainerAction() override;

    virtual void Undo() override;

    virtual void Redo() override;

    static void DisposeElement( const css::uno::Reference< css::uno::XInterface >& xElem );

private:

    void    implReInsert( );

    void    implReRemove( );

    css::uno::Reference< css::container::XIndexContainer >

                    m_xContainer;   // container which the action applies to

    css::uno::Reference< css::uno::XInterface >

                    m_xElement;     // object not owned by the action

    css::uno::Reference< css::uno::XInterface >

                    m_xOwnElement;  // object owned by the action

    sal_Int32       m_nIndex;       // index of the object within its container

    css::uno::Sequence< css::script::ScriptEventDescriptor >

                    m_aEvents;      // events of the object

    Action          m_eAction;

};

class FmUndoModelReplaceAction final : public SdrUndoAction

{

    css::uno::Reference< css::awt::XControlModel> m_xReplaced;

    SdrUnoObj*          m_pObject;

public:

    FmUndoModelReplaceAction(FmFormModel& rMod, SdrUnoObj* pObject, const css::uno::Reference< css::awt::XControlModel>& xReplaced);

    virtual ~FmUndoModelReplaceAction() override;

    virtual void Undo() override;

    virtual void Redo() override { Undo(); }

    virtual OUString GetComment() const override;

    static void DisposeElement( const css::uno::Reference< css::awt::XControlModel>& xReplaced );

};

typedef std::map<css::uno::Reference< css::beans::XPropertySet >, PropertySetInfo> PropertySetInfoCache;

class FmXUndoEnvironment final

    : public ::cppu::WeakImplHelper<   css::beans::XPropertyChangeListener

                                    ,   css::container::XContainerListener

                                    ,   css::util::XModifyListener

                                    >

    , public SfxListener

{

public:

    FmXUndoEnvironment(FmFormModel& _rModel);

    virtual ~FmXUndoEnvironment() override;

    // UNO binding

    //  SMART_UNO_DECLARATION(FmXUndoEnvironment, ::cppu::OWeakObject);

    //  virtual sal_Bool queryInterface(UsrUik, css::uno::Reference< css::uno::XInterface>&);

    //  virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass>>    getIdlClasses();

    void Lock() { osl_atomic_increment( &m_Locks ); }

    void UnLock() { osl_atomic_decrement( &m_Locks ); }

    bool IsLocked() const { return m_Locks != 0; }

    // access control

    struct Accessor { friend class FmFormModel; private: Accessor() { } };

    // addition and removal of form collections

    void AddForms( const css::uno::Reference< css::container::XNameContainer>& rForms );

    void RemoveForms( const css::uno::Reference< css::container::XNameContainer>& rForms );

    // readonly-ness

    void SetReadOnly( bool bRead, const Accessor& ) { bReadOnly = bRead; }

    bool IsReadOnly() const {return bReadOnly;}

    // Methods for assigning controls to forms,

    // used by the page and the undo environment

    void Inserted(SdrObject* pObj);

    void Removed(SdrObject* pObj);

    static void Inserted(FmFormObj* pObj);

    static void Removed(FmFormObj* pObj);

private:

    // XEventListener

    virtual void SAL_CALL disposing(const css::lang::EventObject& Source) override;

    // XPropertyChangeListener

    virtual void SAL_CALL propertyChange(const css::beans::PropertyChangeEvent& evt) override;

    // XContainerListener

    virtual void SAL_CALL elementInserted(const css::container::ContainerEvent& rEvent) override;

    virtual void SAL_CALL elementReplaced(const css::container::ContainerEvent& rEvent) override;

    virtual void SAL_CALL elementRemoved(const css::container::ContainerEvent& rEvent) override;

    // XModifyListener

    virtual void SAL_CALL modified( const css::lang::EventObject& aEvent ) override;

    void ModeChanged();

    void dispose();

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

    void AddElement(const css::uno::Reference< css::uno::XInterface>& Element);

    void RemoveElement(const css::uno::Reference< css::uno::XInterface>& Element);

    void TogglePropertyListening(const css::uno::Reference< css::uno::XInterface>& Element);

    void    implSetModified();

    void    switchListening( const css::uno::Reference< css::container::XIndexContainer >& _rxContainer, bool _bStartListening );

    void    switchListening( const css::uno::Reference< css::uno::XInterface >& _rxObject, bool _bStartListening );

    FmFormModel&                            rModel;

    std::unique_ptr<PropertySetInfoCache>   m_pPropertySetCache;

    ::rtl::Reference<svxform::FormScriptingEnvironment> m_pScriptingEnv;

    oslInterlockedCount                     m_Locks;

    ::osl::Mutex                            m_aMutex;

    bool                                    bReadOnly;

    bool                                    m_bDisposed;

    rtl::Reference< ScriptEventListenerWrapper > m_vbaListener;

};

#endif // INCLUDED_SVX_SOURCE_INC_FMUNDO_HXX

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