/* -*- 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 <unotools/xmlaccelcfg.hxx>

#include <vector>
#include <com/sun/star/xml/sax/XAttributeList.hpp>
#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/queryinterface.hxx>

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

#define ELEMENT_ACCELERATORLIST     "acceleratorlist"
#define ELEMENT_ACCELERATORITEM     "item"

#define ATTRIBUTE_KEYCODE           "code"
#define ATTRIBUTE_MODIFIER          "modifier"
#define ATTRIBUTE_URL               "url"

Any SAL_CALL OReadAccelatorDocumentHandler::queryInterface( const Type & rType ) throw( RuntimeException, std::exception )
{
    Any a = ::cppu::queryInterface( rType ,(static_cast< XDocumentHandler* >(this)));
    if ( a.hasValue() )
        return a;
    else
        return OWeakObject::queryInterface( rType );
}

void SAL_CALL OReadAccelatorDocumentHandler::ignorableWhitespace(
    const OUString& )
throw( SAXException, RuntimeException, std::exception )
{
}

void SAL_CALL OReadAccelatorDocumentHandler::processingInstruction(
    const OUString&, const OUString& )
throw( SAXException, RuntimeException, std::exception )
{
}

void SAL_CALL OReadAccelatorDocumentHandler::setDocumentLocator(
    const Reference< XLocator > &xLocator)
throw(  SAXException, RuntimeException, std::exception )
{
    m_xLocator = xLocator;
}

OUString OReadAccelatorDocumentHandler::getErrorLineString()
{
    char buffer[32];

    if ( m_xLocator.is() )
    {
        return OUString::createFromAscii( buffer );
    }
    else
        return OUString();
}

void SAL_CALL OReadAccelatorDocumentHandler::startDocument()
    throw ( SAXException, RuntimeException, std::exception )
{
}

void SAL_CALL OReadAccelatorDocumentHandler::endDocument()
    throw( SAXException, RuntimeException, std::exception )
{
    if ( m_nElementDepth > 0 )
    {
        OUString aErrorMessage = getErrorLineString();
        aErrorMessage += "A closing element is missing!";
        throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
    }
}

void SAL_CALL OReadAccelatorDocumentHandler::startElement(
    const OUString& aElementName, const Reference< XAttributeList > &xAttrList )
throw( SAXException, RuntimeException, std::exception )
{
    m_nElementDepth++;

    if ( aElementName == ELEMENT_ACCELERATORLIST )
    {
        // acceleratorlist
        if ( m_bAcceleratorMode )
        {
            OUString aErrorMessage = getErrorLineString();
            aErrorMessage += "Accelerator list used twice!";
            throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
        }
        else
            m_bAcceleratorMode = true;
    }
    else if ( aElementName == ELEMENT_ACCELERATORITEM )
    {
        // accelerator item
        if ( !m_bAcceleratorMode )
        {
            OUString aErrorMessage = getErrorLineString();
            aErrorMessage += "Accelerator list element has to be used before!";
            throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
        }
        else
        {
            // read accelerator item
            m_bItemCloseExpected = true;

            SvtAcceleratorConfigItem aItem;

            // read attributes for accelerator
            for ( sal_Int16 i=0; i< xAttrList->getLength(); i++ )
            {
                OUString aName = xAttrList->getNameByIndex( i );
                OUString aValue = xAttrList->getValueByIndex( i );

                if ( aName == ATTRIBUTE_URL )
                    aItem.aCommand = aValue;
                else if ( aName == ATTRIBUTE_MODIFIER )
                    aItem.nModifier = (sal_uInt16)aValue.toInt32();
                else if ( aName == ATTRIBUTE_KEYCODE )
                    aItem.nCode = (sal_uInt16)aValue.toInt32();
            }

            m_aReadAcceleratorList.push_back( aItem );
        }
    }
    else
    {
        OUString aErrorMessage = getErrorLineString();
        aErrorMessage += "Unknown element found!";
        throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
    }
}

void SAL_CALL OReadAccelatorDocumentHandler::characters(const OUString&)
throw(  SAXException, RuntimeException, std::exception )
{
}

void SAL_CALL OReadAccelatorDocumentHandler::endElement( const OUString& aName )
    throw( SAXException, RuntimeException, std::exception )
{
    m_nElementDepth--;

    if ( aName == ELEMENT_ACCELERATORLIST )
    {
        // acceleratorlist
        if ( !m_bAcceleratorMode )
        {
            OUString aErrorMessage = getErrorLineString();
            aErrorMessage += "Accelerator list used twice!";
            throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
        }
    }
    else if ( aName == ELEMENT_ACCELERATORITEM )
    {
        if ( !m_bItemCloseExpected )
        {
            OUString aErrorMessage = getErrorLineString();
            aErrorMessage += "Closing accelerator item element expected!";
            throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
        }
    }
    else
    {
        OUString aErrorMessage = getErrorLineString();
        aErrorMessage += "Unknown closing element found!";
        throw SAXException( aErrorMessage, Reference< XInterface >(), Any() );
    }
}

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