xmloff/source/core/XMLEmbeddedObjectImportContext.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <string_view>
  23
  24 #include <sal/log.hxx>
  25 #include <com/sun/star/document/XImporter.hpp>
  26 #include <com/sun/star/uno/XComponentContext.hpp>
  27 #include <com/sun/star/util/XModifiable2.hpp>
  28 #include <tools/globname.hxx>
  29 #include <comphelper/classids.hxx>
  30 #include <xmloff/namespacemap.hxx>
  31 #include <xmloff/xmlimp.hxx>
  32 #include <xmloff/xmlnamespace.hxx>
  33 #include <xmloff/xmltoken.hxx>
  34 #include <xmloff/attrlist.hxx>
  35 #include <xmloff/XMLFilterServiceNames.h>
  36 #include <XMLEmbeddedObjectImportContext.hxx>
  37
  38 using namespace ::com::sun::star::uno;
  39 using namespace ::com::sun::star::util;
  40 using namespace ::com::sun::star::beans;
  41 using namespace ::com::sun::star::lang;
  42 using namespace ::com::sun::star::document;
  43 using namespace ::com::sun::star::xml::sax;
  44 using namespace ::xmloff::token;
  45
  46 namespace {
  47
  48 class XMLEmbeddedObjectImportContext_Impl : public SvXMLImportContext
  49 {
  50     css::uno::Reference< css::xml::sax::XFastDocumentHandler > mxFastHandler;
  51
  52 public:
  53
  54     XMLEmbeddedObjectImportContext_Impl( SvXMLImport& rImport,
  55                                     const css::uno::Reference< css::xml::sax::XFastDocumentHandler >& rHandler );
  56
  57     virtual css::uno::Reference< css::xml::sax::XFastContextHandler > SAL_CALL createFastChildContext(
  58         sal_Int32 nElement,
  59         const css::uno::Reference< css::xml::sax::XFastAttributeList >& AttrList ) override;
  60
  61     virtual void SAL_CALL startFastElement(
  62                         sal_Int32 nElement,
  63                         const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList ) override;
  64
  65     virtual void SAL_CALL endFastElement(sal_Int32 nElement) override;
  66
  67     virtual void SAL_CALL characters( const OUString& rChars ) override;
  68 };
  69
  70 }
  71
  72 XMLEmbeddedObjectImportContext_Impl::XMLEmbeddedObjectImportContext_Impl(
  73         SvXMLImport& rImport,
  74         const Reference< XFastDocumentHandler >& rHandler ) :
  75     SvXMLImportContext( rImport ),
  76     mxFastHandler( rHandler )
  77 {
  78     assert(mxFastHandler);
  79 }
  80
  81 css::uno::Reference< css::xml::sax::XFastContextHandler > XMLEmbeddedObjectImportContext_Impl::createFastChildContext(
  82     sal_Int32 ,
  83     const css::uno::Reference< css::xml::sax::XFastAttributeList >&  )
  84 {
  85     return new XMLEmbeddedObjectImportContext_Impl(GetImport(), mxFastHandler);
  86 }
  87
  88 void XMLEmbeddedObjectImportContext_Impl::startFastElement(
  89         sal_Int32 nElement,
  90         const Reference< XFastAttributeList >& xAttrList )
  91 {
  92     mxFastHandler->startFastElement( nElement, xAttrList );
  93 }
  94
  95 void XMLEmbeddedObjectImportContext_Impl::endFastElement(sal_Int32 nElement)
  96 {
  97     mxFastHandler->endFastElement( nElement );
  98 }
  99
 100 void XMLEmbeddedObjectImportContext_Impl::characters( const OUString& rChars )
 101 {
 102     mxFastHandler->characters( rChars );
 103 }
 104
 105
 106 void XMLEmbeddedObjectImportContext::SetComponent( Reference< XComponent > const & rComp )
 107 {
 108     if( !rComp.is() || sFilterService.isEmpty() )
 109         return;
 110
 111     Sequence<Any> aArgs( 0 );
 112
 113     Reference< XComponentContext > xContext( GetImport().GetComponentContext() );
 114
 115     Reference<XInterface> xFilter =
 116         xContext->getServiceManager()->createInstanceWithArgumentsAndContext(sFilterService, aArgs, xContext);
 117     SAL_WARN_IF(!xFilter, "xmloff", "could not create filter " << sFilterService);
 118     if( !xFilter.is() )
 119         return;
 120
 121     assert(dynamic_cast<SvXMLImport*>(xFilter.get()));
 122     SvXMLImport *pFastHandler = dynamic_cast<SvXMLImport*>(xFilter.get());
 123     mxFastHandler = pFastHandler;
 124
 125     try
 126     {
 127         Reference < XModifiable2 > xModifiable2( rComp, UNO_QUERY_THROW );
 128         xModifiable2->disableSetModified();
 129     }
 130     catch( Exception& )
 131     {
 132     }
 133
 134     Reference < XImporter > xImporter( mxFastHandler, UNO_QUERY );
 135     xImporter->setTargetDocument( rComp );
 136
 137     xComp = rComp;  // keep ref to component only if there is a handler
 138
 139     // #i34042: copy namepspace declarations
 140     // We created a new instance of XMLImport, so we need to propogate the namespace
 141     // declarations to it.
 142     pFastHandler->GetNamespaceMap() = GetImport().GetNamespaceMap();
 143 }
 144
 145 XMLEmbeddedObjectImportContext::XMLEmbeddedObjectImportContext(
 146         SvXMLImport& rImport, sal_uInt16 nPrfx, const OUString& rLName,
 147         const Reference< XAttributeList >& xAttrList ) :
 148     SvXMLImportContext( rImport, nPrfx, rLName )
 149 {
 150     SvGlobalName aName;
 151
 152     if( nPrfx == XML_NAMESPACE_MATH &&
 153         IsXMLToken( rLName, XML_MATH ) )
 154     {
 155         sFilterService = XML_IMPORT_FILTER_MATH;
 156         aName = SvGlobalName(SO3_SM_CLASSID);
 157     }
 158     else if( nPrfx == XML_NAMESPACE_OFFICE &&
 159         IsXMLToken( rLName, XML_DOCUMENT ) )
 160     {
 161         OUString sMime;
 162
 163         sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
 164         for( sal_Int16 i=0; i < nAttrCount; i++ )
 165         {
 166             const OUString& rAttrName = xAttrList->getNameByIndex( i );
 167             OUString aLocalName;
 168             sal_uInt16 nPrefix = GetImport().GetNamespaceMap().GetKeyByAttrName( rAttrName, &aLocalName );
 169             if( nPrefix == XML_NAMESPACE_OFFICE &&
 170                 IsXMLToken( aLocalName, XML_MIMETYPE ) )
 171             {
 172                 sMime = xAttrList->getValueByIndex( i );
 173                 break;
 174             }
 175         }
 176
 177         OUString sClass;
 178         static std::u16string_view const prefixes[] = {
 179             u"application/vnd.oasis.openoffice.",
 180             u"application/x-vnd.oasis.openoffice.",
 181             u"application/vnd.oasis.opendocument.",
 182             u"application/x-vnd.oasis.opendocument."};
 183         for (auto const & p: prefixes)
 184         {
 185             if (sMime.startsWith(p, &sClass))
 186             {
 187                 break;
 188             }
 189         }
 190
 191         if( !sClass.isEmpty() )
 192         {
 193             static struct { XMLTokenEnum eClass; std::u16string_view sFilterService;
 194             } const aServiceMap[] = {
 195                 { XML_TEXT,         std::u16string_view(u"" XML_IMPORT_FILTER_WRITER) },
 196                 { XML_ONLINE_TEXT,  std::u16string_view(u"" XML_IMPORT_FILTER_WRITER) },
 197                 { XML_SPREADSHEET,  std::u16string_view(u"" XML_IMPORT_FILTER_CALC) },
 198                 { XML_DRAWING,      std::u16string_view(u"" XML_IMPORT_FILTER_DRAW) },
 199                 { XML_GRAPHICS,     std::u16string_view(u"" XML_IMPORT_FILTER_DRAW) },
 200                 { XML_PRESENTATION, std::u16string_view(u"" XML_IMPORT_FILTER_IMPRESS) },
 201                 { XML_CHART,        std::u16string_view(u"" XML_IMPORT_FILTER_CHART) }};
 202             for (auto const & entry: aServiceMap)
 203             {
 204                 if( IsXMLToken( sClass, entry.eClass ) )
 205                 {
 206                     sFilterService = entry.sFilterService;
 207
 208                     switch( entry.eClass )
 209                     {
 210                     case XML_TEXT:          aName = SvGlobalName(SO3_SW_CLASSID); break;
 211                     case XML_ONLINE_TEXT:   aName = SvGlobalName(SO3_SWWEB_CLASSID); break;
 212                     case XML_SPREADSHEET:   aName = SvGlobalName(SO3_SC_CLASSID); break;
 213                     case XML_DRAWING:
 214                     case XML_GRAPHICS:
 215                     case XML_IMAGE:     aName = SvGlobalName(SO3_SDRAW_CLASSID); break;
 216                     case XML_PRESENTATION:  aName = SvGlobalName(SO3_SIMPRESS_CLASSID); break;
 217                     case XML_CHART:         aName = SvGlobalName(SO3_SCH_CLASSID); break;
 218                     default:
 219                         break;
 220                     }
 221
 222                     break;
 223                 }
 224             }
 225         }
 226     }
 227
 228     sCLSID = aName.GetHexName();
 229 }
 230
 231 XMLEmbeddedObjectImportContext::~XMLEmbeddedObjectImportContext()
 232 {
 233 }
 234
 235 css::uno::Reference< css::xml::sax::XFastContextHandler > XMLEmbeddedObjectImportContext::createFastChildContext(
 236     sal_Int32 ,
 237     const css::uno::Reference< css::xml::sax::XFastAttributeList >& )
 238 {
 239     if( mxFastHandler.is() )
 240         return new XMLEmbeddedObjectImportContext_Impl( GetImport(), mxFastHandler );
 241     return nullptr;
 242 }
 243
 244 void XMLEmbeddedObjectImportContext::startFastElement(
 245         sal_Int32 nElement,
 246         const Reference< XFastAttributeList >& rAttrList )
 247 {
 248     if( !mxFastHandler.is() )
 249         return;
 250
 251     mxFastHandler->startDocument();
 252     mxFastHandler->startFastElement( nElement, rAttrList );
 253 }
 254
 255 void XMLEmbeddedObjectImportContext::endFastElement(sal_Int32 nElement)
 256 {
 257     if( !mxFastHandler.is() )
 258         return;
 259
 260     mxFastHandler->endFastElement( nElement );
 261     mxFastHandler->endDocument();
 262
 263     try
 264     {
 265         Reference < XModifiable2 > xModifiable2( xComp, UNO_QUERY_THROW );
 266         xModifiable2->enableSetModified();
 267         xModifiable2->setModified( true ); // trigger new replacement image generation
 268     }
 269     catch( Exception& )
 270     {
 271     }
 272 }
 273
 274 void XMLEmbeddedObjectImportContext::characters( const OUString& rChars )
 275 {
 276     if( mxFastHandler.is() )
 277         mxFastHandler->characters( rChars );
 278 }
 279
 280 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */