/* -*- 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 .
 */

#include "idroptarget.hxx"

IDropTargetImpl::IDropTargetImpl( DropTarget& pTarget): m_nRefCount( 0),
                                    m_rDropTarget( pTarget)
{
}

IDropTargetImpl::~IDropTargetImpl()
{
}

//IDropTarget
HRESULT STDMETHODCALLTYPE IDropTargetImpl::QueryInterface( REFIID riid, void  **ppvObject)
{
    if( !ppvObject)
        return E_POINTER;
    *ppvObject= nullptr;

    if( riid == __uuidof( IUnknown))
        *ppvObject= static_cast<IUnknown*>( this);
    else if (  riid == __uuidof( IDropTarget))
        *ppvObject= static_cast<IDropTarget*>( this);

    if(*ppvObject)
    {
        AddRef();
        return S_OK;
    }
    else
        return E_NOINTERFACE;

}

ULONG STDMETHODCALLTYPE IDropTargetImpl::AddRef()
{
    return InterlockedIncrement( &m_nRefCount);
}

ULONG STDMETHODCALLTYPE IDropTargetImpl::Release()
{
    LONG count= InterlockedDecrement( &m_nRefCount);
    if( m_nRefCount == 0 )
        delete this;
    return count;
}

STDMETHODIMP IDropTargetImpl::DragEnter( IDataObject __RPC_FAR *pDataObj,
                                    DWORD grfKeyState,
                                    POINTL pt,
                                    DWORD  *pdwEffect)
{
    return m_rDropTarget.DragEnter( pDataObj, grfKeyState,
                                  pt, pdwEffect);
}

STDMETHODIMP IDropTargetImpl::DragOver( DWORD grfKeyState,
                                   POINTL pt,
                                   DWORD  *pdwEffect)
{
    return m_rDropTarget.DragOver( grfKeyState, pt, pdwEffect);
}

STDMETHODIMP IDropTargetImpl::DragLeave()
{
    return m_rDropTarget.DragLeave();
}

STDMETHODIMP IDropTargetImpl::Drop( IDataObject  *pDataObj,
                   DWORD grfKeyState,
                   POINTL pt,
                   DWORD __RPC_FAR *pdwEffect)
{
    return m_rDropTarget.Drop( pDataObj, grfKeyState,
                                   pt, pdwEffect);
}

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