/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmloff.hxx"

#include "XFormsInstanceContext.hxx"

#include "DomBuilderContext.hxx"
#include "xformsapi.hxx"

#include <rtl/ustring.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/xml/dom/XDocument.hpp>
#include <com/sun/star/xforms/XModel.hpp>
#include <tools/debug.hxx>

#include <xmloff/xmlnmspe.hxx>
#include <xmloff/xmltoken.hxx>
#include <xmloff/xmlimp.hxx>
#include <xmloff/xmlerror.hxx>
#include <xmloff/nmspmap.hxx>


using rtl::OUString;
using com::sun::star::uno::Reference;
using com::sun::star::uno::makeAny;
using com::sun::star::uno::UNO_QUERY;
using com::sun::star::uno::Sequence;
using com::sun::star::xforms::XModel;
using com::sun::star::beans::XPropertySet;
using com::sun::star::beans::PropertyValue;
using com::sun::star::xml::sax::XAttributeList;

using xmloff::token::IsXMLToken;
using xmloff::token::XML_INSTANCE;
using xmloff::token::XML_SRC;
using xmloff::token::XML_ID;

static SvXMLTokenMapEntry aAttributes[] =
{
    TOKEN_MAP_ENTRY( NONE, SRC ),
    TOKEN_MAP_ENTRY( NONE, ID ),
    XML_TOKEN_MAP_END
};

XFormsInstanceContext::XFormsInstanceContext( 
    SvXMLImport& rImport, 
    sal_uInt16 nPrefix,
    const OUString& rLocalName,
    Reference<XPropertySet> xModel ) :
        TokenContext( rImport, nPrefix, rLocalName, aAttributes, aEmptyMap ),
        mxModel( Reference<XModel>( xModel, UNO_QUERY ) )
{
    DBG_ASSERT( mxModel.is(), "need model" );
}

XFormsInstanceContext::~XFormsInstanceContext()
{
}

SvXMLImportContext* XFormsInstanceContext::CreateChildContext( 
    sal_uInt16 nPrefix,
    const OUString& rLocalName,
    const Reference<XAttributeList>& )
{
    SvXMLImportContext* pContext = NULL;

    // only the first element child of an xforms:instance element
    // is used as an instance. The other children remainder must be 
    // ignored.
    if( mxInstance.is() )
    {
        GetImport().SetError( XMLERROR_XFORMS_ONLY_ONE_INSTANCE_ELEMENT, rLocalName );
        pContext = new SvXMLImportContext( GetImport(), nPrefix, rLocalName );
    }
    else
    {
        // create new DomBuilderContext. Save reference to tree in Model.
        DomBuilderContext* pInstance = 
            new DomBuilderContext( GetImport(), nPrefix, rLocalName );
        mxInstance = pInstance->getTree();
        pContext = pInstance;
    }

    DBG_ASSERT( pContext != NULL, "no context!" );
    return pContext;

}

void XFormsInstanceContext::EndElement()
{
    Sequence<PropertyValue> aSequence( 3 );
    PropertyValue* pSequence = aSequence.getArray();
    pSequence[0].Name = OUString( RTL_CONSTASCII_USTRINGPARAM("Instance") );
    pSequence[0].Value <<= mxInstance;
    pSequence[1].Name = OUString( RTL_CONSTASCII_USTRINGPARAM("ID") );
    pSequence[1].Value <<= msId;
    pSequence[2].Name = OUString( RTL_CONSTASCII_USTRINGPARAM("URL") );
    pSequence[2].Value <<= msURL;

    mxModel->getInstances()->insert( makeAny( aSequence ) );
}


void XFormsInstanceContext::HandleAttribute( 
    sal_uInt16 nToken, 
    const rtl::OUString& rValue )
{
    switch( nToken )
    {
    case XML_SRC:
        msURL = rValue;
        break;
    case XML_ID:
        msId = rValue;
        break;
    default:
        DBG_ERROR( "should not happen" );
        break;
    }
}

SvXMLImportContext* XFormsInstanceContext::HandleChild( 
    sal_uInt16,
    sal_uInt16,
    const OUString&,
    const Reference<XAttributeList>& )
{
    DBG_ERROR( "to be handled by CreateChildContext" );
    return NULL;
}