libreoffice/framework/source/xml/imagesconfiguration.cxx

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#include <xml/imagesconfiguration.hxx>
#include <services.h>

#include <xml/imagesdocumenthandler.hxx>
#include <xml/saxnamespacefilter.hxx>

//_________________________________________________________________________________________________________________
//  interface includes
//_________________________________________________________________________________________________________________
#include <com/sun/star/xml/sax/XParser.hpp>
#include <com/sun/star/io/XActiveDataSource.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>

//_________________________________________________________________________________________________________________
//  other includes
//_________________________________________________________________________________________________________________

#include <comphelper/processfactory.hxx>
#include <unotools/streamwrap.hxx>

//_________________________________________________________________________________________________________________
//  namespace
//_________________________________________________________________________________________________________________

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


namespace framework
{

static Reference< XParser > GetSaxParser(
    const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xServiceFactory
    )
{
    return Reference< XParser >( xServiceFactory->createInstance( SERVICENAME_SAXPARSER), UNO_QUERY);
}

static Reference< XDocumentHandler > GetSaxWriter(
    const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xServiceFactory
    )
{
    return Reference< XDocumentHandler >( xServiceFactory->createInstance( SERVICENAME_SAXWRITER), UNO_QUERY) ;
}

sal_Bool ImagesConfiguration::LoadImages(
    const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xServiceFactory,
    const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& rInputStream,
    ImageListsDescriptor& rItems )
{
    Reference< XParser > xParser( GetSaxParser( xServiceFactory ) );

    // connect stream to input stream to the parser
    InputSource aInputSource;

    aInputSource.aInputStream = rInputStream;

    // create namespace filter and set document handler inside to support xml namespaces
    Reference< XDocumentHandler > xDocHandler( new OReadImagesDocumentHandler( rItems ));
    Reference< XDocumentHandler > xFilter( new SaxNamespaceFilter( xDocHandler ));

    // connect parser and filter
    xParser->setDocumentHandler( xFilter );

    try
    {
        xParser->parseStream( aInputSource );
        return sal_True;
    }
    catch ( const RuntimeException& )
    {
        return sal_False;
    }
    catch( const SAXException& )
    {
        return sal_False;
    }
    catch( const ::com::sun::star::io::IOException& )
    {
        return sal_False;
    }
}

sal_Bool ImagesConfiguration::StoreImages(
    const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xServiceFactory,
    const ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >& rOutputStream,
    const ImageListsDescriptor& rItems )
{
    Reference< XDocumentHandler > xWriter( GetSaxWriter( xServiceFactory ) );

    Reference< ::com::sun::star::io::XActiveDataSource> xDataSource( xWriter , UNO_QUERY );
    xDataSource->setOutputStream( rOutputStream );

    try
    {
        OWriteImagesDocumentHandler aWriteImagesDocumentHandler( rItems, xWriter );
        aWriteImagesDocumentHandler.WriteImagesDocument();
        return sal_True;
    }
    catch ( const RuntimeException& )
    {
        return sal_False;
    }
    catch ( const SAXException& )
    {
        return sal_False;
    }
    catch ( const ::com::sun::star::io::IOException& )
    {
        return sal_False;
    }
}

}

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