/**************************************************************
 *
 * 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 <com/sun/star/text/XText.hpp>
#include <com/sun/star/text/XRelativeTextContentRemove.hpp>
#include <xmloff/nmspmap.hxx>
#include "xmloff/xmlnmspe.hxx"
#include "XMLTextHeaderFooterContext.hxx"
#ifndef _XMLOFF_TEXTTABLECONTEXT_HXX_
#include <xmloff/XMLTextTableContext.hxx>
#endif
#include <xmloff/xmlimp.hxx>


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

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::xml::sax;
//using namespace ::com::sun::star::style;
using namespace ::com::sun::star::text;
using namespace ::com::sun::star::beans;
//using namespace ::com::sun::star::container;
//using namespace ::com::sun::star::lang;
//using namespace ::com::sun::star::text;


TYPEINIT1( XMLTextHeaderFooterContext, SvXMLImportContext );

XMLTextHeaderFooterContext::XMLTextHeaderFooterContext( SvXMLImport& rImport, sal_uInt16 nPrfx,
					   const OUString& rLName,
					   const uno::Reference<
							xml::sax::XAttributeList > &,
						const Reference < XPropertySet > & rPageStylePropSet,
					   sal_Bool bFooter, sal_Bool bLft ) :
	SvXMLImportContext( rImport, nPrfx, rLName ),
	xPropSet( rPageStylePropSet ),
	sOn( OUString::createFromAscii( bFooter ? "FooterIsOn" : "HeaderIsOn" ) ),
	sShareContent( OUString::createFromAscii( bFooter ? "FooterIsShared"
													  : "HeaderIsShared" ) ),
	sText( OUString::createFromAscii( bFooter ? "FooterText" : "HeaderText" ) ),
	sTextLeft( OUString::createFromAscii( bFooter ? "FooterTextLeft"
													 : "HeaderTextLeft" ) ),
	bInsertContent( sal_True ),
	bLeft( bLft )
{
	if( bLeft )
	{
		Any aAny;

		aAny = xPropSet->getPropertyValue( sOn );
		sal_Bool bOn = *(sal_Bool *)aAny.getValue();

		if( bOn )
		{
			aAny = xPropSet->getPropertyValue( sShareContent );
			sal_Bool bShared = *(sal_Bool *)aAny.getValue();
			if( bShared )
			{
				// Don't share headers any longer
				bShared = sal_False;
				aAny.setValue( &bShared, ::getBooleanCppuType() );
				xPropSet->setPropertyValue( sShareContent, aAny );
			}
		}
		else
		{
			// If headers or footers are switched off, no content must be
			// inserted.
			bInsertContent = sal_False;
		}
	}
}

XMLTextHeaderFooterContext::~XMLTextHeaderFooterContext()
{
}

SvXMLImportContext *XMLTextHeaderFooterContext::CreateChildContext(
	sal_uInt16 nPrefix,
	const OUString& rLocalName,
	const uno::Reference< xml::sax::XAttributeList > & xAttrList )
{
	SvXMLImportContext *pContext = 0;
	if( bInsertContent )
	{
		if( !xOldTextCursor.is() )
		{
			sal_Bool bRemoveContent = sal_True;
			Any aAny;
			if( bLeft )
			{
				// Headers and footers are switched on already,
				// and they aren't shared.
				aAny = xPropSet->getPropertyValue( sTextLeft );
			}
			else
			{
				aAny = xPropSet->getPropertyValue( sOn );
				sal_Bool bOn = *(sal_Bool *)aAny.getValue();

				if( !bOn )
				{
					// Switch header on
					bOn = sal_True;
					aAny.setValue( &bOn, ::getBooleanCppuType() );
					xPropSet->setPropertyValue( sOn, aAny );

					// The content has not to be removed, because the header
					// or footer is empty already.
					bRemoveContent = sal_False;
				}

				// If a header or footer is not shared, share it now.
				aAny = xPropSet->getPropertyValue( sShareContent );
				sal_Bool bShared = *(sal_Bool *)aAny.getValue();
				if( !bShared )
				{
					bShared = sal_True;
					aAny.setValue( &bShared, ::getBooleanCppuType() );
					xPropSet->setPropertyValue( sShareContent, aAny );
				}

				aAny = xPropSet->getPropertyValue( sText );
			}

			Reference < XText > xText;
			aAny >>= xText;

			if( bRemoveContent )
			{
				OUString aText;
				xText->setString( aText );
			}

			UniReference < XMLTextImportHelper > xTxtImport =
				GetImport().GetTextImport();

			xOldTextCursor = xTxtImport->GetCursor();
			xTxtImport->SetCursor( xText->createTextCursor() );
		}

		pContext =
			GetImport().GetTextImport()->CreateTextChildContext(
				GetImport(), nPrefix, rLocalName, xAttrList,
				XML_TEXT_TYPE_HEADER_FOOTER );
	}
	if( !pContext )
		pContext = new SvXMLImportContext( GetImport(), nPrefix, rLocalName );

	return pContext;
}

void XMLTextHeaderFooterContext::EndElement()
{
	if( xOldTextCursor.is() )
	{
		GetImport().GetTextImport()->DeleteParagraph();
		GetImport().GetTextImport()->SetCursor( xOldTextCursor );
	}
	else if( !bLeft )
	{
		// If no content has been inserted inro the header or footer,
		// switch it off.
		sal_Bool bOn = sal_False;
		Any aAny;
		aAny.setValue( &bOn, ::getBooleanCppuType() );
		xPropSet->setPropertyValue( sOn, aAny );
	}
}