/* -*- 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 <XMLEventImportHelper.hxx>

#include <tools/debug.hxx>

#include <xmloff/xmlimp.hxx>

#include <xmloff/namespacemap.hxx>

#include <xmloff/xmlnamespace.hxx>

#include <xmloff/xmlerror.hxx>

using ::com::sun::star::uno::Reference;

XMLEventImportHelper::XMLEventImportHelper() :

    pEventNameMap(new NameMap)

{

}

XMLEventImportHelper::~XMLEventImportHelper()

{

    // delete factories

    aFactoryMap.clear();

    // delete name map

    pEventNameMap.reset();

}

void XMLEventImportHelper::RegisterFactory(

    const OUString& rLanguage,

    std::unique_ptr<XMLEventContextFactory> pFactory )

{

    assert(pFactory);

    aFactoryMap[rLanguage] = std::move(pFactory);

}

void XMLEventImportHelper::AddTranslationTable(

    const XMLEventNameTranslation* pTransTable )

{

    if (nullptr == pTransTable)

        return;

    // put translation table into map

    for(const XMLEventNameTranslation* pTrans = pTransTable;

        !pTrans->sAPIName.isEmpty();

        pTrans++)

    {

        XMLEventName aName( pTrans->nPrefix, pTrans->sXMLName );

        // check for conflicting entries

        DBG_ASSERT(pEventNameMap->find(aName) == pEventNameMap->end(),

                   "conflicting event translations");

        // assign new translation

        (*pEventNameMap)[aName] = pTrans->sAPIName;

    }

    // else? ignore!

}

void XMLEventImportHelper::PushTranslationTable()

{

    // save old map and install new one

    aEventNameMapVector.push_back(std::move(pEventNameMap));

    pEventNameMap.reset( new NameMap );

}

void XMLEventImportHelper::PopTranslationTable()

{

    DBG_ASSERT(!aEventNameMapVector.empty(),

               "no translation tables left to pop");

    if ( !aEventNameMapVector.empty() )

    {

        // delete current and install old map

        pEventNameMap = std::move(aEventNameMapVector.back());

        aEventNameMapVector.pop_back();

    }

}

SvXMLImportContext* XMLEventImportHelper::CreateContext(

    SvXMLImport& rImport,

    const Reference<css::xml::sax::XFastAttributeList> & xAttrList,

    XMLEventsImportContext* rEvents,

    const OUString& rXmlEventName,

    const OUString& rLanguage)

{

    SvXMLImportContext* pContext = nullptr;

    // translate event name from xml to api

    OUString sMacroName;

    sal_uInt16 nMacroPrefix =

        rImport.GetNamespaceMap().GetKeyByAttrValueQName(rXmlEventName,

                                                        &sMacroName );

    XMLEventName aEventName( nMacroPrefix, sMacroName );

    NameMap::iterator aNameIter = pEventNameMap->find(aEventName);

    if (aNameIter != pEventNameMap->end())

    {

        OUString aScriptLanguage;

        sal_uInt16 nScriptPrefix = rImport.GetNamespaceMap().

                GetKeyByAttrValueQName(rLanguage, &aScriptLanguage);

        if( XML_NAMESPACE_OOO != nScriptPrefix )

            aScriptLanguage = rLanguage ;

        // check for factory

        FactoryMap::iterator aFactoryIterator =

            aFactoryMap.find(aScriptLanguage);

        if (aFactoryIterator != aFactoryMap.end())

        {

            // delegate to factory

            pContext = aFactoryIterator->second->CreateContext(

                rImport, xAttrList,

                rEvents, aNameIter->second);

        }

    }

    // default context (if no context was created above)

    if( nullptr == pContext )

    {

        pContext = new SvXMLImportContext(rImport);

        rImport.SetError(XMLERROR_FLAG_ERROR | XMLERROR_ILLEGAL_EVENT,

                         { rXmlEventName, rLanguage });

    }

    return pContext;

}

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