/* -*- 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 .
 */

// XMergeFactory.cpp: implementation of the CXMergeFactory class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"

#include "XMergeFilter.h"
#include "XMergeFactory.h"

//////////////////////////////////////////////////////////////////////
// IUnknown implementation
//////////////////////////////////////////////////////////////////////
STDMETHODIMP CXMergeFactory::QueryInterface(REFIID riid, void **ppvObject)
{
    if(ppvObject == NULL)
        return E_INVALIDARG;

    if(::IsEqualIID(riid, IID_IUnknown) || ::IsEqualIID(riid, IID_IClassFactory))
    {
        *ppvObject = static_cast<IClassFactory*>(this);
    }
    else
    {
        *ppvObject = NULL;
        return E_NOINTERFACE;
    }

    reinterpret_cast<IUnknown*>(*ppvObject)->AddRef();
    return S_OK;
}


STDMETHODIMP_(ULONG) CXMergeFactory::AddRef()
{
    return ::InterlockedIncrement(&m_cRef);
}


STDMETHODIMP_(ULONG) CXMergeFactory::Release()
{
    if(::InterlockedDecrement(&m_cRef) == 0)
    {
        delete this;
        return 0;
    }

    return m_cRef;
}


//////////////////////////////////////////////////////////////////////
// IUnknown implementation
//////////////////////////////////////////////////////////////////////
STDMETHODIMP CXMergeFactory::CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppvObject)
{
    if (ppvObject == NULL)
        return E_INVALIDARG;

    if (pUnkOuter != NULL)  // cannot aggregate
    {
        *ppvObject = NULL;
        return CLASS_E_NOAGGREGATION;
    }

    if (iid == IID_ICeFileFilter)
    {
        CXMergeFilter *pFilter = new CXMergeFilter();
        HRESULT hr = pFilter->QueryInterface(iid, ppvObject);
        pFilter->Release();

        return hr;
    }

    return E_INVALIDARG;
}


STDMETHODIMP CXMergeFactory::LockServer(BOOL fLock)
{
    _Module.LockServer(fLock);
    return S_OK;
}


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