/* -*- 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_VCL_DNDHELP_HXX

#define INCLUDED_VCL_DNDHELP_HXX

#include <vcl/dllapi.h>

#include <cppuhelper/weak.hxx>

#include <com/sun/star/datatransfer/dnd/XDragGestureListener.hpp>

#include <com/sun/star/datatransfer/dnd/XDragSourceListener.hpp>

#include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>

namespace com::sun::star::datatransfer::dnd {

    struct DragGestureEvent;

    struct DragSourceDropEvent;

    struct DropTargetDragEvent;

    struct DropTargetDragEnterEvent;

    struct DropTargetDropEvent;

    struct DropTargetEvent;

}

namespace vcl::unohelper

{

class VCL_DLLPUBLIC DragAndDropClient

{

public:

    virtual ~DragAndDropClient();

    // css::datatransfer::dnd::XDragGestureListener

    /// @throws css::uno::RuntimeException

    SAL_DLLPRIVATE virtual void dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& dge );

    // css::datatransfer::dnd::XDragSourceListener

    /// @throws css::uno::RuntimeException

    SAL_DLLPRIVATE virtual void dragDropEnd(const css::datatransfer::dnd::DragSourceDropEvent& dsde );

    // css::datatransfer::dnd::XDropTargetListener

    /// @throws css::uno::RuntimeException

    SAL_DLLPRIVATE virtual void drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde );

    /// @throws css::uno::RuntimeException

    SAL_DLLPRIVATE virtual void dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee );

    /// @throws css::uno::RuntimeException

    SAL_DLLPRIVATE virtual void dragExit( const css::datatransfer::dnd::DropTargetEvent& dte );

    /// @throws css::uno::RuntimeException

    SAL_DLLPRIVATE virtual void dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde );

};

class SAL_DLLPUBLIC_RTTI DragAndDropWrapper final :

                            public css::datatransfer::dnd::XDragGestureListener,

                            public css::datatransfer::dnd::XDragSourceListener,

                            public css::datatransfer::dnd::XDropTargetListener,

                            public ::cppu::OWeakObject

{

private:

    DragAndDropClient* mpClient;

public:

    VCL_DLLPUBLIC   DragAndDropWrapper( DragAndDropClient* pClient );

                    virtual ~DragAndDropWrapper() override;

    // css::uno::XInterface

    css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;

    void          SAL_CALL acquire() noexcept override  { OWeakObject::acquire(); }

    void          SAL_CALL release() noexcept override  { OWeakObject::release(); }

    // css::lang::XEventListener

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

    // css::datatransfer::dnd::XDragGestureListener

    void SAL_CALL dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& dge ) override;

    // css::datatransfer::dnd::XDragSourceListener

    void SAL_CALL dragDropEnd( const css::datatransfer::dnd::DragSourceDropEvent& dsde ) override;

    void SAL_CALL dragEnter( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;

    void SAL_CALL dragExit( const css::datatransfer::dnd::DragSourceEvent& dse ) override;

    void SAL_CALL dragOver( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;

    void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;

    // css::datatransfer::dnd::XDropTargetListener

    void SAL_CALL drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) override;

    void SAL_CALL dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;

    void SAL_CALL dragExit( const css::datatransfer::dnd::DropTargetEvent& dte ) override;

    void SAL_CALL dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;

    void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;

};

}  // namespace vcl::unohelper

#endif // INCLUDED_VCL_DNDHELP_HXX

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