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#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"
#include <xmloff/XMLTextTableContext.hxx>
#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::text;
using namespace ::com::sun::star::beans;


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( bFooter ? OUString(RTL_CONSTASCII_USTRINGPARAM( "FooterIsOn" )) : OUString(RTL_CONSTASCII_USTRINGPARAM( "HeaderIsOn" )) ),
    sShareContent( bFooter ? OUString(RTL_CONSTASCII_USTRINGPARAM( "FooterIsShared" ))
                                                      : OUString(RTL_CONSTASCII_USTRINGPARAM( "HeaderIsShared" )) ),
    sText( bFooter ? OUString(RTL_CONSTASCII_USTRINGPARAM( "FooterText" )) : OUString(RTL_CONSTASCII_USTRINGPARAM( "HeaderText" )) ),
    sTextLeft( bFooter ?  OUString(RTL_CONSTASCII_USTRINGPARAM( "FooterTextLeft" ))
                                                     : OUString(RTL_CONSTASCII_USTRINGPARAM( "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 );
    }
}

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