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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: ofopxmlhelper.hxx,v $
 * $Revision: 1.4 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _COMPHELPER_OFOPXMLHELPER_HXX
#define _COMPHELPER_OFOPXMLHELPER_HXX

#ifndef _COM_SUN_STAR_XML_SAX_XDUCUMENTHANDLER_HPP_
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#endif
#include <com/sun/star/beans/StringPair.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <cppuhelper/implbase1.hxx>
#include <comphelper/comphelperdllapi.h>


namespace comphelper
{

// this helper class is designed to allow to parse ContentType- and Relationship-related information from OfficeOpenXML format
class COMPHELPER_DLLPUBLIC OFOPXMLHelper : public cppu::WeakImplHelper1 < com::sun::star::xml::sax::XDocumentHandler >
{
    sal_uInt16 m_nFormat; // which format to parse

    // Relations info related strings
    ::rtl::OUString m_aRelListElement;
    ::rtl::OUString m_aRelElement;
    ::rtl::OUString m_aIDAttr;
    ::rtl::OUString m_aTypeAttr;
    ::rtl::OUString m_aTargetModeAttr;
    ::rtl::OUString m_aTargetAttr;

    // ContentType related strings
    ::rtl::OUString m_aTypesElement;
    ::rtl::OUString m_aDefaultElement;
    ::rtl::OUString m_aOverrideElement;
    ::rtl::OUString m_aExtensionAttr;
    ::rtl::OUString m_aPartNameAttr;
    ::rtl::OUString m_aContentTypeAttr;

    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > m_aResultSeq;
    ::com::sun::star::uno::Sequence< ::rtl::OUString > m_aElementsSeq; // stack of elements being parsed

    OFOPXMLHelper( sal_uInt16 nFormat ); // must not be created directly
    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > GetParsingResult();

    static COMPHELPER_DLLPRIVATE ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > SAL_CALL ReadSequence_Impl( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream, const ::rtl::OUString& aStringID, sal_uInt16 nFormat, const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xFactory )
    throw( ::com::sun::star::uno::Exception );

public:
    ~OFOPXMLHelper();

    // returns sequence of elements, where each element is described by sequence of tags,
    // where each tag is described by StringPair ( First - name, Second - value )
    // the first tag of each element sequence must be "Id"
    static
    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > >
    SAL_CALL
    ReadRelationsInfoSequence(
        const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream,
        const ::rtl::OUString aStreamName,
        const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xFactory )
            throw( ::com::sun::star::uno::Exception );

    // returns sequence containing two entries of type sequence<StringPair>
    // the first sequence describes "Default" elements, where each element is described
    // by StringPair object ( First - Extension, Second - ContentType )
    // the second sequence describes "Override" elements, where each element is described
    // by StringPair object ( First - PartName, Second - ContentType )
    static
    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > >
    SAL_CALL
    ReadContentTypeSequence(
        const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream,
        const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xFactory )
            throw( ::com::sun::star::uno::Exception );

    // writes sequence of elements, where each element is described by sequence of tags,
    // where each tag is described by StringPair ( First - name, Second - value )
    // the first tag of each element sequence must be "Id"
    static
    void SAL_CALL WriteRelationsInfoSequence(
        const ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >& xOutStream,
        const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > >& aSequence,
        const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xFactory )
            throw( ::com::sun::star::uno::Exception );

    // writes two entries of type sequence<StringPair>
    // the first sequence describes "Default" elements, where each element is described
    // by StringPair object ( First - Extension, Second - ContentType )
    // the second sequence describes "Override" elements, where each element is described
    // by StringPair object ( First - PartName, Second - ContentType )
    static
    void SAL_CALL WriteContentSequence(
        const ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >& xOutStream,
        const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair >& aDefaultsSequence,
        const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair >& aOverridesSequence,
        const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > xFactory )
            throw( ::com::sun::star::uno::Exception );

    // XDocumentHandler
    virtual void SAL_CALL startDocument() throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL endDocument() throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL startElement( const ::rtl::OUString& aName, const ::com::sun::star::uno::Reference< ::com::sun::star::xml::sax::XAttributeList >& xAttribs ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL endElement( const ::rtl::OUString& aName ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL characters( const ::rtl::OUString& aChars ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL ignorableWhitespace( const ::rtl::OUString& aWhitespaces ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL processingInstruction( const ::rtl::OUString& aTarget, const ::rtl::OUString& aData ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL setDocumentLocator( const ::com::sun::star::uno::Reference< ::com::sun::star::xml::sax::XLocator >& xLocator ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeException);
};

} // namespace comphelper

#endif