/* -*- 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 <xml/imagesconfiguration.hxx>

#include <xml/imagesdocumenthandler.hxx>
#include <xml/saxnamespacefilter.hxx>

#include <com/sun/star/xml/sax/Parser.hpp>
#include <com/sun/star/xml/sax/Writer.hpp>
#include <com/sun/star/xml/sax/SAXException.hpp>
#include <com/sun/star/io/IOException.hpp>
#include <com/sun/star/io/XInputStream.hpp>

using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::xml::sax;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::io;

namespace framework
{
bool ImagesConfiguration::LoadImages(
    const css::uno::Reference<css::uno::XComponentContext>& rxContext,
    const css::uno::Reference<css::io::XInputStream>& rInputStream, ImageItemDescriptorList& rItems)
{
    Reference<XParser> xParser = Parser::create(rxContext);

    // connect stream to input stream to the parser
    InputSource aInputSource;

    aInputSource.aInputStream = rInputStream;

    // create namespace filter and set document handler inside to support xml namespaces
    Reference<XDocumentHandler> xDocHandler(new OReadImagesDocumentHandler(rItems));
    Reference<XDocumentHandler> xFilter(new SaxNamespaceFilter(xDocHandler));

    // connect parser and filter
    xParser->setDocumentHandler(xFilter);

    try
    {
        xParser->parseStream(aInputSource);
        return true;
    }
    catch (const RuntimeException&)
    {
        return false;
    }
    catch (const SAXException&)
    {
        return false;
    }
    catch (const css::io::IOException&)
    {
        return false;
    }
}

bool ImagesConfiguration::StoreImages(
    const css::uno::Reference<css::uno::XComponentContext>& rxContext,
    const css::uno::Reference<css::io::XOutputStream>& rOutputStream,
    const ImageItemDescriptorList& rItems)
{
    Reference<XWriter> xWriter = Writer::create(rxContext);
    xWriter->setOutputStream(rOutputStream);

    try
    {
        OWriteImagesDocumentHandler aWriteImagesDocumentHandler(rItems, xWriter);
        aWriteImagesDocumentHandler.WriteImagesDocument();
        return true;
    }
    catch (const RuntimeException&)
    {
        return false;
    }
    catch (const SAXException&)
    {
        return false;
    }
    catch (const css::io::IOException&)
    {
        return false;
    }
}
}

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