SmartTagHandler.cxx

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/* -*- 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/.
 */
 
#include "SmartTagHandler.hxx"
 
#include <com/sun/star/rdf/Literal.hpp>
#include <com/sun/star/rdf/URI.hpp>
#include <com/sun/star/rdf/XDocumentMetadataAccess.hpp>
#include <com/sun/star/text/XTextDocument.hpp>
#include <com/sun/star/text/XTextRange.hpp>
 
#include <ooxml/resourceids.hxx>
 
#include <sal/log.hxx>
 
namespace
{
OUString lcl_getTypePath(OUString& rType)
{
    OUString aRet;
    if (rType.startsWith("urn:bails"))
    {
        rType = "urn:bails";
        aRet = "tscp/bails.rdf";
    }
    return aRet;
}
}
 
namespace writerfilter::dmapper
{
using namespace ::com::sun::star;
 
SmartTagHandler::SmartTagHandler(uno::Reference<uno::XComponentContext> xComponentContext,
                                 const uno::Reference<text::XTextDocument>& xTextDocument)
    : LoggedProperties("SmartTagHandler")
    , m_xComponentContext(std::move(xComponentContext))
    , m_xDocumentMetadataAccess(xTextDocument, uno::UNO_QUERY)
{
}
 
SmartTagHandler::~SmartTagHandler() = default;
 
void SmartTagHandler::lcl_attribute(Id nId, Value& rValue)
{
    switch (nId)
    {
        case NS_ooxml::LN_CT_Attr_name:
            m_aAttributes.emplace_back(rValue.getString(), OUString());
            break;
        case NS_ooxml::LN_CT_Attr_val:
            if (!m_aAttributes.empty())
                m_aAttributes.back().second = rValue.getString();
            break;
        default:
            SAL_WARN("writerfilter", "SmartTagHandler::lcl_attribute: unhandled attribute "
                                         << nId << " (string value: '" << rValue.getString()
                                         << "')");
            break;
    }
}
 
void SmartTagHandler::lcl_sprm(Sprm& rSprm)
{
    switch (rSprm.getId())
    {
        case NS_ooxml::LN_CT_SmartTagPr_attr:
        {
            writerfilter::Reference<Properties>::Pointer_t pProperties = rSprm.getProps();
            if (pProperties)
                pProperties->resolve(*this);
            break;
        }
    }
}
 
void SmartTagHandler::setURI(const OUString& rURI) { m_aURI = rURI; }
 
void SmartTagHandler::setElement(const OUString& rElement) { m_aElement = rElement; }
 
void SmartTagHandler::handle(const uno::Reference<text::XTextRange>& xParagraph)
{
    if (m_aURI.isEmpty() || m_aElement.isEmpty() || m_aAttributes.empty())
        return;
 
    uno::Reference<rdf::XResource> xSubject(xParagraph, uno::UNO_QUERY);
 
    for (const std::pair<OUString, OUString>& rAttribute : m_aAttributes)
    {
        OUString aTypeNS = rAttribute.first;
        OUString aMetadataFilePath = lcl_getTypePath(aTypeNS);
        if (aMetadataFilePath.isEmpty())
            continue;
 
        uno::Reference<rdf::XURI> xType = rdf::URI::create(m_xComponentContext, aTypeNS);
        uno::Sequence<uno::Reference<rdf::XURI>> aGraphNames
            = m_xDocumentMetadataAccess->getMetadataGraphsWithType(xType);
        uno::Reference<rdf::XURI> xGraphName;
        if (aGraphNames.hasElements())
            xGraphName = aGraphNames[0];
        else
        {
            uno::Sequence<uno::Reference<rdf::XURI>> xTypes = { xType };
            xGraphName = m_xDocumentMetadataAccess->addMetadataFile(aMetadataFilePath, xTypes);
        }
        uno::Reference<rdf::XNamedGraph> xGraph
            = m_xDocumentMetadataAccess->getRDFRepository()->getGraph(xGraphName);
        uno::Reference<rdf::XURI> xKey = rdf::URI::create(m_xComponentContext, rAttribute.first);
        uno::Reference<rdf::XLiteral> xValue
            = rdf::Literal::create(m_xComponentContext, rAttribute.second);
        xGraph->addStatement(xSubject, xKey, xValue);
    }
 
    m_aURI.clear();
    m_aElement.clear();
    m_aAttributes.clear();
}
 
} // namespace writerfilter::dmapper
 
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