/**************************************************************
 * 
 * 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 <tools/debug.hxx>
#include <com/sun/star/drawing/XLayerManager.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/xml/sax/XAttributeList.hpp>
#include <com/sun/star/drawing/XLayerSupplier.hpp>
#include <comphelper/extract.hxx>
#include <xmloff/xmltoken.hxx>
#include <xmloff/xmlimp.hxx>
#include "xmloff/xmlnmspe.hxx"
#include <xmloff/xmluconv.hxx>
#include <xmloff/nmspmap.hxx>
#include "layerimp.hxx"

using ::rtl::OUString;
using ::rtl::OUStringBuffer;

#include "XMLStringBufferImportContext.hxx"

using namespace ::std;
using namespace ::cppu;
using namespace ::xmloff::token;
using namespace ::com::sun::star;
using namespace ::com::sun::star::xml;
using namespace ::com::sun::star::xml::sax;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::container;
using ::xmloff::token::IsXMLToken;

class SdXMLLayerContext : public SvXMLImportContext
{
public:
	SdXMLLayerContext( SvXMLImport& rImport, sal_uInt16 nPrefix, const OUString& rLocalName, const Reference< XAttributeList >& xAttrList, const Reference< XNameAccess >& xLayerManager );
	virtual ~SdXMLLayerContext();

	virtual SvXMLImportContext *CreateChildContext( sal_uInt16 nPrefix, const ::rtl::OUString& rLocalName, const Reference< XAttributeList >& xAttrList );
	virtual void EndElement();

private:
	::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess > mxLayerManager;
	::rtl::OUString msName;
	::rtl::OUStringBuffer sDescriptionBuffer;
	::rtl::OUStringBuffer sTitleBuffer;
};

SdXMLLayerContext::SdXMLLayerContext( SvXMLImport& rImport, sal_uInt16 nPrefix, const OUString& rLocalName, const Reference< XAttributeList >& xAttrList, const Reference< XNameAccess >& xLayerManager )
: SvXMLImportContext(rImport, nPrefix, rLocalName)
, mxLayerManager( xLayerManager )
{
	const OUString strName( RTL_CONSTASCII_USTRINGPARAM( "Name" ) );

	OUString aName;

	const sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
	for(sal_Int16 i=0; i < nAttrCount; i++)
	{
		OUString aLocalName;
		if( GetImport().GetNamespaceMap().GetKeyByAttrName( xAttrList->getNameByIndex( i ), &aLocalName ) == XML_NAMESPACE_DRAW )
		{
			const OUString sValue( xAttrList->getValueByIndex( i ) );

			if( IsXMLToken( aLocalName, XML_NAME ) )
			{
				msName = sValue;
				break; // no more attributes needed
			}
		}
	}

}

SdXMLLayerContext::~SdXMLLayerContext()
{
}

SvXMLImportContext * SdXMLLayerContext::CreateChildContext( sal_uInt16 nPrefix, const ::rtl::OUString& rLocalName, const Reference< XAttributeList >& )
{
	if( (XML_NAMESPACE_SVG == nPrefix) && IsXMLToken(rLocalName, XML_TITLE) )
	{
		return new XMLStringBufferImportContext( GetImport(), nPrefix, rLocalName, sTitleBuffer);
	}
	else if( (XML_NAMESPACE_SVG == nPrefix) && IsXMLToken(rLocalName, XML_DESC) )
	{
		return new XMLStringBufferImportContext( GetImport(), nPrefix, rLocalName, sDescriptionBuffer);
	}
	else
	{
		return new SvXMLImportContext( GetImport(), nPrefix, rLocalName );
	}
}

void SdXMLLayerContext::EndElement()
{
	DBG_ASSERT( msName.getLength(), "xmloff::SdXMLLayerContext::EndElement(), draw:layer element without draw:name!" );
	if( msName.getLength() ) try
	{
		Reference< XPropertySet > xLayer;

		if( mxLayerManager->hasByName( msName ) )
		{
			mxLayerManager->getByName( msName ) >>= xLayer;
			DBG_ASSERT( xLayer.is(), "xmloff::SdXMLLayerContext::EndElement(), failed to get existing XLayer!" );
		}
		else
		{
			Reference< XLayerManager > xLayerManager( mxLayerManager, UNO_QUERY );
			if( xLayerManager.is() )
				xLayer = Reference< XPropertySet >::query( xLayerManager->insertNewByIndex( xLayerManager->getCount() ) );
			DBG_ASSERT( xLayer.is(), "xmloff::SdXMLLayerContext::EndElement(), failed to create new XLayer!" );

			if( xLayer.is() )
				xLayer->setPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM( "Name" ) ), Any( msName ) );
		}

		if( xLayer.is() )
		{
			xLayer->setPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM("Title") ), Any( sTitleBuffer.makeStringAndClear() ) );
			xLayer->setPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM("Description") ), Any( sDescriptionBuffer.makeStringAndClear() ) );
		}
	}
	catch( Exception& )
	{
		DBG_ERROR("SdXMLLayerContext::EndElement(), exception caught!");
	}
}


SdXMLLayerSetContext::SdXMLLayerSetContext( SvXMLImport& rImport, sal_uInt16 nPrfx,	const rtl::OUString& rLocalName,
		const com::sun::star::uno::Reference< com::sun::star::xml::sax::XAttributeList>&)
: SvXMLImportContext(rImport, nPrfx, rLocalName)
{
	Reference< XLayerSupplier > xLayerSupplier( rImport.GetModel(), UNO_QUERY );
	DBG_ASSERT( xLayerSupplier.is(), "xmloff::SdXMLLayerSetContext::SdXMLLayerSetContext(), XModel is not supporting XLayerSupplier!" );
	if( xLayerSupplier.is() )
		mxLayerManager = xLayerSupplier->getLayerManager();
}

SdXMLLayerSetContext::~SdXMLLayerSetContext()
{
}

SvXMLImportContext * SdXMLLayerSetContext::CreateChildContext( sal_uInt16 nPrefix, const ::rtl::OUString& rLocalName,
		const com::sun::star::uno::Reference< com::sun::star::xml::sax::XAttributeList>& xAttrList )
{
	return new SdXMLLayerContext( GetImport(), nPrefix, rLocalName, xAttrList, mxLayerManager );
}