Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : 
       3             : /*
       4             :  * This file is part of the LibreOffice project.
       5             :  *
       6             :  * This Source Code Form is subject to the terms of the Mozilla Public
       7             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       8             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       9             :  */
      10             : 
      11             : #ifndef INCLUDED_FILTER_SOURCE_XSLTFILTER_OLEHANDLER_HXX
      12             : #define INCLUDED_FILTER_SOURCE_XSLTFILTER_OLEHANDLER_HXX
      13             : #include <cstdio>
      14             : #include <cstring>
      15             : #include <list>
      16             : #include <map>
      17             : #include <vector>
      18             : #include <iostream>
      19             : #include <libxml/parser.h>
      20             : #include <libxml/tree.h>
      21             : #include <libxml/xmlIO.h>
      22             : #include <libxslt/transform.h>
      23             : #include <libxslt/xsltutils.h>
      24             : #include <libxslt/variables.h>
      25             : 
      26             : #include <cppuhelper/factory.hxx>
      27             : #include <cppuhelper/implbase4.hxx>
      28             : #include <osl/module.h>
      29             : #include <osl/file.hxx>
      30             : #include <osl/process.h>
      31             : #include <com/sun/star/lang/XComponent.hpp>
      32             : #include <com/sun/star/lang/XInitialization.hpp>
      33             : #include <com/sun/star/uno/Any.hxx>
      34             : #include <com/sun/star/beans/NamedValue.hpp>
      35             : #include <com/sun/star/container/XNameContainer.hpp>
      36             : #include <com/sun/star/io/XInputStream.hpp>
      37             : #include <com/sun/star/io/XOutputStream.hpp>
      38             : #include <com/sun/star/io/XStream.hpp>
      39             : 
      40             : using namespace ::com::sun::star::uno;
      41             : using namespace ::com::sun::star::lang;
      42             : using namespace ::com::sun::star::container;
      43             : using namespace ::com::sun::star::io;
      44             : 
      45             : namespace XSLT
      46             : {
      47             :     /*
      48             :      * OleHandler provides implementations for the XSLT extension functions used by the WordML 2003 XSLT filters.
      49             :      *
      50             :      * The extension functions takes base64 encoded string representations of embedded OLE objects provided by the XML filter framework,
      51             :      * stores them into a com.sun.star.embed.OLESimpleStorage and retrieves them later as individual base64 OLE objects.
      52             :      *
      53             :      * The implementation is ported from the former Java based implementation XSLTOleExtrater (sic)
      54             :      *
      55             :      * I believe the whole thing should provide round-trip editing of embedded OLE objects.
      56             :      * I'm not sure if it currently does anything meaningful, because the Java implementation seems to be broken both in OOo and LibO.
      57             :      *
      58             :      */
      59           4 :     class OleHandler
      60             :     {
      61             :     public:
      62           4 :         OleHandler(const com::sun::star::uno::Reference<XComponentContext>& rxContext){
      63           4 :             m_xContext = rxContext;
      64           4 :         }
      65             :         void SAL_CALL
      66             :         insertByName(const OUString& streamName, const OString& content);
      67             :         const OString SAL_CALL
      68             :         getByName(const OUString& streamName);
      69             : 
      70             :     private:
      71             :         com::sun::star::uno::Reference<XComponentContext> m_xContext;
      72             :         com::sun::star::uno::Reference<XNameContainer> m_storage;
      73             :         com::sun::star::uno::Reference<XStream> m_rootStream;
      74             :         void SAL_CALL
      75             :         ensureCreateRootStorage();
      76             :         OString SAL_CALL
      77             :         encodeSubStorage(const OUString& streamName);
      78             :         void SAL_CALL
      79             :         insertSubStorage(const OUString& streamName, const OString& content);
      80             :         void SAL_CALL
      81             :         initRootStorageFromBase64(const OString& content);
      82             :         com::sun::star::uno::Reference<XStream> SAL_CALL
      83             :         createTempFile();
      84             :     };
      85             : }
      86             : 
      87             : 
      88             : #endif // INCLUDED_FILTER_SOURCE_XSLTFILTER_OLEHANDLER_HXX