svx/source/xml/xmlexport.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 <comphelper/diagnose_ex.hxx>
  21 #include <com/sun/star/xml/sax/InputSource.hpp>
  22 #include <com/sun/star/xml/sax/XDocumentHandler.hpp>
  23 #include <com/sun/star/xml/sax/Writer.hpp>
  24 #include <com/sun/star/lang/XComponent.hpp>
  25 #include <com/sun/star/xml/sax/XFastParser.hpp>
  26 #include <com/sun/star/io/XOutputStream.hpp>
  27 #include <com/sun/star/document/XFilter.hpp>
  28 #include <com/sun/star/document/XExporter.hpp>
  29 #include <com/sun/star/document/XImporter.hpp>
  30 #include <comphelper/processfactory.hxx>
  31 #include <svx/svdmodel.hxx>
  32 #include <svx/xmleohlp.hxx>
  33 #include <svx/xmlgrhlp.hxx>
  34
  35 #include <svx/unomodel.hxx>
  36
  37 using namespace ::com::sun::star;
  38 using namespace ::com::sun::star::uno;
  39
  40 bool SvxDrawingLayerExport( SdrModel* pModel, const uno::Reference<io::XOutputStream>& xOut, const Reference< lang::XComponent >& xComponent )
  41 {
  42     return SvxDrawingLayerExport( pModel, xOut, xComponent, "com.sun.star.comp.DrawingLayer.XMLExporter" );
  43 }
  44
  45 bool SvxDrawingLayerExport( SdrModel* pModel, const uno::Reference<io::XOutputStream>& xOut, const Reference< lang::XComponent >& xComponent, const char* pExportService )
  46 {
  47     bool bDocRet = xOut.is();
  48
  49     uno::Reference<document::XGraphicStorageHandler> xGraphicStorageHandler;
  50     rtl::Reference<SvXMLGraphicHelper> xGraphicHelper;
  51
  52     Reference< document::XEmbeddedObjectResolver > xObjectResolver;
  53     rtl::Reference<SvXMLEmbeddedObjectHelper> xObjectHelper;
  54
  55     Reference< lang::XComponent > xSourceDoc( xComponent );
  56     try
  57     {
  58         if( !xSourceDoc.is() )
  59         {
  60             xSourceDoc = new SvxUnoDrawingModel( pModel );
  61             pModel->setUnoModel( Reference< XInterface >::query( xSourceDoc ) );
  62         }
  63
  64         uno::Reference< uno::XComponentContext> xContext( ::comphelper::getProcessComponentContext() );
  65
  66         if( bDocRet )
  67         {
  68             uno::Reference< xml::sax::XWriter > xWriter = xml::sax::Writer::create( xContext );
  69
  70             ::comphelper::IEmbeddedHelper *pPersist = pModel->GetPersist();
  71             if( pPersist )
  72             {
  73                 xObjectHelper = SvXMLEmbeddedObjectHelper::Create( *pPersist, SvXMLEmbeddedObjectHelperMode::Write );
  74                 xObjectResolver = xObjectHelper.get();
  75             }
  76
  77             xGraphicHelper = SvXMLGraphicHelper::Create( SvXMLGraphicHelperMode::Write );
  78             xGraphicStorageHandler = xGraphicHelper.get();
  79
  80             uno::Reference<xml::sax::XDocumentHandler>  xHandler = xWriter;
  81
  82             // doc export
  83             xWriter->setOutputStream( xOut );
  84
  85             uno::Sequence< uno::Any > aArgs( xObjectResolver.is() ? 3 : 2 );
  86             auto pArgs = aArgs.getArray();
  87             pArgs[0] <<= xHandler;
  88             pArgs[1] <<= xGraphicStorageHandler;
  89             if( xObjectResolver.is() )
  90                 pArgs[2] <<= xObjectResolver;
  91
  92             uno::Reference< document::XFilter > xFilter( xContext->getServiceManager()->createInstanceWithArgumentsAndContext( OUString::createFromAscii( pExportService ), aArgs, xContext ), uno::UNO_QUERY );
  93             if( !xFilter.is() )
  94             {
  95                 OSL_FAIL( "com.sun.star.comp.Draw.XMLExporter service missing" );
  96                 bDocRet = false;
  97             }
  98
  99             if( bDocRet )
 100             {
 101                 uno::Reference< document::XExporter > xExporter( xFilter, uno::UNO_QUERY );
 102                 if( xExporter.is() )
 103                 {
 104                     xExporter->setSourceDocument( xSourceDoc );
 105
 106                     uno::Sequence< beans::PropertyValue > aDescriptor( 0 );
 107                     bDocRet = xFilter->filter( aDescriptor );
 108                 }
 109             }
 110         }
 111     }
 112     catch(uno::Exception const&)
 113     {
 114         DBG_UNHANDLED_EXCEPTION("svx");
 115         bDocRet = false;
 116     }
 117
 118     if( xGraphicHelper )
 119         xGraphicHelper->dispose();
 120     xGraphicHelper.clear();
 121     xGraphicStorageHandler = nullptr;
 122
 123     if( xObjectHelper.is() )
 124         xObjectHelper->dispose();
 125
 126     return bDocRet;
 127 }
 128
 129 bool SvxDrawingLayerExport( SdrModel* pModel, const uno::Reference<io::XOutputStream>& xOut )
 130 {
 131     Reference< lang::XComponent > xComponent;
 132     return SvxDrawingLayerExport( pModel, xOut, xComponent );
 133 }
 134
 135 //-
 136
 137 bool SvxDrawingLayerImport( SdrModel* pModel, const uno::Reference<io::XInputStream>& xInputStream, const Reference< lang::XComponent >& xComponent )
 138 {
 139     return SvxDrawingLayerImport( pModel, xInputStream, xComponent, "com.sun.star.comp.Draw.XMLOasisImporter" );
 140 }
 141
 142 bool SvxDrawingLayerImport( SdrModel* pModel, const uno::Reference<io::XInputStream>& xInputStream, const Reference< lang::XComponent >& xComponent, const char* pImportService  )
 143 {
 144     bool bRet = true;
 145
 146     uno::Reference<document::XGraphicStorageHandler> xGraphicStorageHandler;
 147     rtl::Reference<SvXMLGraphicHelper> xGraphicHelper;
 148
 149     Reference< document::XEmbeddedObjectResolver > xObjectResolver;
 150     rtl::Reference<SvXMLEmbeddedObjectHelper> xObjectHelper;
 151
 152     Reference< lang::XComponent > xTargetDocument( xComponent );
 153     if( !xTargetDocument.is() )
 154     {
 155         xTargetDocument = new SvxUnoDrawingModel( pModel );
 156         pModel->setUnoModel( Reference< XInterface >::query( xTargetDocument ) );
 157     }
 158
 159     Reference< frame::XModel > xTargetModel( xTargetDocument, UNO_QUERY );
 160
 161     try
 162     {
 163         // Get service factory
 164         Reference< uno::XComponentContext > xContext = comphelper::getProcessComponentContext();
 165
 166         if ( xTargetModel.is() )
 167             xTargetModel->lockControllers();
 168
 169
 170         xGraphicHelper = SvXMLGraphicHelper::Create( SvXMLGraphicHelperMode::Read );
 171         xGraphicStorageHandler = xGraphicHelper.get();
 172
 173         ::comphelper::IEmbeddedHelper *pPersist = pModel->GetPersist();
 174         if( pPersist )
 175         {
 176             xObjectHelper = SvXMLEmbeddedObjectHelper::Create(
 177                                         *pPersist,
 178                                         SvXMLEmbeddedObjectHelperMode::Read );
 179             xObjectResolver = xObjectHelper.get();
 180         }
 181
 182         // parse
 183         // prepare ParserInputSource
 184         xml::sax::InputSource aParserInput;
 185         aParserInput.aInputStream = xInputStream;
 186
 187         // prepare filter arguments
 188         Sequence<Any> aFilterArgs( 2 );
 189         Any *pArgs = aFilterArgs.getArray();
 190         *pArgs++ <<= xGraphicStorageHandler;
 191         *pArgs++ <<= xObjectResolver;
 192
 193         // get filter
 194         Reference< XInterface > xFilter = xContext->getServiceManager()->createInstanceWithArgumentsAndContext( OUString::createFromAscii( pImportService ), aFilterArgs, xContext);
 195         SAL_WARN_IF( !xFilter, "svx", "Can't instantiate filter component " << pImportService);
 196         uno::Reference< xml::sax::XFastParser > xFastParser( xFilter,  UNO_QUERY );
 197         assert(xFastParser);
 198
 199         bRet = false;
 200         if( xFastParser.is() )
 201         {
 202             // connect model and filter
 203             uno::Reference < document::XImporter > xImporter( xFilter, UNO_QUERY );
 204             xImporter->setTargetDocument( xTargetDocument );
 205
 206             // finally, parser the stream
 207             xFastParser->parseStream( aParserInput );
 208
 209             bRet = true;
 210         }
 211     }
 212     catch( uno::Exception& )
 213     {
 214         DBG_UNHANDLED_EXCEPTION("svx");
 215     }
 216
 217     if( xGraphicHelper )
 218         xGraphicHelper->dispose();
 219     xGraphicHelper.clear();
 220     xGraphicStorageHandler = nullptr;
 221
 222     if( xObjectHelper.is() )
 223         xObjectHelper->dispose();
 224     xObjectHelper.clear();
 225     xObjectResolver = nullptr;
 226
 227     if ( xTargetModel.is() )
 228         xTargetModel->unlockControllers();
 229
 230     return bRet;
 231 }
 232
 233 bool SvxDrawingLayerImport( SdrModel* pModel, const uno::Reference<io::XInputStream>& xInputStream )
 234 {
 235     Reference< lang::XComponent > xComponent;
 236     return SvxDrawingLayerImport( pModel, xInputStream, xComponent );
 237 }
 238
 239 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */