/* -*- 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 <MetaExportComponent.hxx>

#include <com/sun/star/xml/sax/XDocumentHandler.hpp>

#include <com/sun/star/uno/Sequence.hxx>

#include <com/sun/star/uno/Reference.hxx>

#include <com/sun/star/uno/Exception.hpp>

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

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

#include <com/sun/star/frame/XModel.hpp>

#include <com/sun/star/uno/XComponentContext.hpp>

#include <comphelper/errcode.hxx>

#include <comphelper/genericpropertyset.hxx>

#include <comphelper/propertysetinfo.hxx>

#include <osl/diagnose.h>

#include <xmloff/xmlnamespace.hxx>

#include <xmloff/namespacemap.hxx>

#include <xmloff/xmltoken.hxx>

#include <xmloff/xmlmetae.hxx>

#include <PropertySetMerger.hxx>

#include <unotools/docinfohelper.hxx>

using namespace ::com::sun::star;

using namespace ::xmloff::token;

XMLMetaExportComponent::XMLMetaExportComponent(

    const css::uno::Reference< css::uno::XComponentContext >& xContext,

    OUString const & implementationName, SvXMLExportFlags nFlags )

:   SvXMLExport( xContext, implementationName, util::MeasureUnit::CM, XML_TEXT, nFlags )

{

}

XMLMetaExportComponent::~XMLMetaExportComponent()

{

}

void SAL_CALL XMLMetaExportComponent::setSourceDocument( const css::uno::Reference< css::lang::XComponent >& xDoc )

{

    try

    {

        SvXMLExport::setSourceDocument( xDoc );

    }

    catch( lang::IllegalArgumentException& )

    {

        // allow to use document properties service without model access

        // this is required for document properties exporter

        mxDocProps =

            uno::Reference< document::XDocumentProperties >::query( xDoc );

        if( !mxDocProps.is() )

            throw lang::IllegalArgumentException();

    }

}

ErrCode XMLMetaExportComponent::exportDoc( enum XMLTokenEnum )

{

    uno::Reference< xml::sax::XDocumentHandler > xDocHandler = GetDocHandler();

    if( !(getExportFlags() & SvXMLExportFlags::OASIS) )

    {

        uno::Reference< uno::XComponentContext > xContext = getComponentContext();

        try

        {

            static const ::comphelper::PropertyMapEntry aInfoMap[] =

            {

                { u"Class"_ustr, 0,

                    ::cppu::UnoType<OUString>::get(),

                    beans::PropertyAttribute::MAYBEVOID, 0},

            };

            uno::Reference< beans::XPropertySet > xConvPropSet(

                ::comphelper::GenericPropertySet_CreateInstance(

                        new ::comphelper::PropertySetInfo( aInfoMap ) ) );

            xConvPropSet->setPropertyValue(u"Class"_ustr, uno::Any(GetXMLToken( XML_TEXT )) );

            uno::Reference< beans::XPropertySet > xPropSet =

                getExportInfo().is()

                    ?  PropertySetMerger_CreateInstance( getExportInfo(),

                                                      xConvPropSet )

                    : getExportInfo();

            uno::Sequence< uno::Any > aArgs{ uno::Any(xDocHandler), uno::Any(xPropSet),

                                             uno::Any(GetModel()) };

            // get filter component

            xDocHandler.set(

                xContext->getServiceManager()->createInstanceWithArgumentsAndContext(

                    u"com.sun.star.comp.Oasis2OOoTransformer"_ustr, aArgs, xContext),

                uno::UNO_QUERY_THROW );

            SetDocHandler( xDocHandler );

        }

        catch( css::uno::Exception& )

        {

            OSL_FAIL( "Cannot instantiate com.sun.star.comp.Oasis2OOoTransformer!");

        }

    }

    xDocHandler->startDocument();

    addChaffWhenEncryptedStorage();

    {

        const SvXMLNamespaceMap& rMap = GetNamespaceMap();

        sal_uInt16 nPos = rMap.GetFirstKey();

        while( USHRT_MAX != nPos )

        {

            GetAttrList().AddAttribute( rMap.GetAttrNameByKey( nPos ), rMap.GetNameByKey( nPos ) );

            nPos = GetNamespaceMap().GetNextKey( nPos );

        }

        const char*const pVersion = GetODFVersionAttributeValue();

        if( pVersion )

            AddAttribute( XML_NAMESPACE_OFFICE, XML_VERSION,

                            OUString::createFromAscii(pVersion) );

        SvXMLElementExport aDocElem( *this, XML_NAMESPACE_OFFICE, XML_DOCUMENT_META,

                    true, true );

        // NB: office:meta is now written by _ExportMeta

        ExportMeta_();

    }

    xDocHandler->endDocument();

    return ERRCODE_NONE;

}

void XMLMetaExportComponent::ExportMeta_()

{

    if (mxDocProps.is()) {

        OUString generator( ::utl::DocInfoHelper::GetGeneratorString() );

        // update generator here

        mxDocProps->setGenerator(generator);

        rtl::Reference<SvXMLMetaExport> pMeta = new SvXMLMetaExport(*this, mxDocProps);

        pMeta->Export();

    } else {

        SvXMLExport::ExportMeta_();

    }

}

// methods without content:

void XMLMetaExportComponent::ExportAutoStyles_() {}

void XMLMetaExportComponent::ExportMasterStyles_() {}

void XMLMetaExportComponent::ExportContent_() {}

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *

XMLMetaExportComponent_get_implementation(

    css::uno::XComponentContext *context,

    css::uno::Sequence<css::uno::Any> const &)

{

    return cppu::acquire(new XMLMetaExportComponent(context, u"XMLMetaExportComponent"_ustr, SvXMLExportFlags::META|SvXMLExportFlags::OASIS));

}

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*

XMLMetaExportOOo_get_implementation(css::uno::XComponentContext* context,

                                    css::uno::Sequence<css::uno::Any> const&)

{

    return cppu::acquire(

        new XMLMetaExportComponent(context, u"XMLMetaExportOOo"_ustr, SvXMLExportFlags::META));

}

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