filter/source/xsltfilter/OleHandler.hxx

   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 OLEHANDLER_HXX_
  12 #define 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 <cppuhelper/implbase.hxx>
  29 #include <osl/module.h>
  30 #include <osl/file.hxx>
  31 #include <osl/process.h>
  32 #include <com/sun/star/lang/XComponent.hpp>
  33 #include <com/sun/star/lang/XInitialization.hpp>
  34 #include <com/sun/star/uno/Any.hxx>
  35 #include <com/sun/star/beans/NamedValue.hpp>
  36 #include <com/sun/star/container/XNameContainer.hpp>
  37 #include <com/sun/star/io/XInputStream.hpp>
  38 #include <com/sun/star/io/XOutputStream.hpp>
  39 #include <com/sun/star/io/XStream.hpp>
  40
  41 using namespace ::com::sun::star::uno;
  42 using namespace ::com::sun::star::lang;
  43 using namespace ::com::sun::star::container;
  44 using namespace ::com::sun::star::io;
  45 using namespace ::rtl;
  46
  47 namespace XSLT
  48 {
  49     /*
  50      * OleHandler provides implementations for the XSLT extension functions used by the WordML 2003 XSLT filters.
  51      *
  52      * The extension functions takes base64 encoded string representations of embedded OLE objects provided by the XML filter framework,
  53      * stores them into a com.sun.star.embed.OLESimpleStorage and retrieves them later as individual base64 OLE objects.
  54      *
  55      * The implementation is ported from the former Java based implementation XSLTOleExtrater (sic)
  56      *
  57      * I believe the whole thing should provide round-trip editing of embedded OLE objects.
  58      * I'm not sure if it currently does anything meaningful, because the Java implementation seems to be broken both in OOo and LibO.
  59      *
  60      */
  61     class OleHandler
  62     {
  63     public:
  64         OleHandler(const com::sun::star::uno::Reference<XMultiServiceFactory>& msf){
  65             m_msf =msf;
  66         }
  67         void SAL_CALL
  68         insertByName(const OUString& streamName, const OString& content);
  69         const OString SAL_CALL
  70         getByName(const OUString& streamName);
  71
  72     private:
  73         com::sun::star::uno::Reference<XMultiServiceFactory> m_msf;
  74         com::sun::star::uno::Reference<XNameContainer> m_storage;
  75         com::sun::star::uno::Reference<XStream> m_rootStream;
  76         void SAL_CALL
  77         ensureCreateRootStorage();
  78         OString SAL_CALL
  79         encodeSubStorage(const OUString& streamName);
  80         void SAL_CALL
  81         insertSubStorage(const OUString& streamName, const OString& content);
  82         void SAL_CALL
  83         initRootStorageFromBase64(const OString& content);
  84         com::sun::star::uno::Reference<XStream> SAL_CALL
  85         createTempFile();
  86     };
  87 }
  88
  89
  90 #endif /* OLEHANDLER_HXX_ */