sw/source/filter/rtf/swparrtf.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 <poolfmt.hxx>
  21 #include <shellio.hxx>
  22 #include <ndtxt.hxx>
  23 #include <doc.hxx>
  24 #include <docsh.hxx>
  25 #include <IDocumentStylePoolAccess.hxx>
  26 #include <swdll.hxx>
  27 #include <swerror.h>
  28
  29 #include <unotextrange.hxx>
  30
  31 #include <unotools/streamwrap.hxx>
  32 #include <comphelper/processfactory.hxx>
  33 #include <comphelper/propertysequence.hxx>
  34 #include <comphelper/diagnose_ex.hxx>
  35
  36 #include <com/sun/star/document/XFilter.hpp>
  37 #include <com/sun/star/document/XImporter.hpp>
  38 #include <com/sun/star/frame/XModel.hpp>
  39 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  40
  41 using namespace ::com::sun::star;
  42
  43 namespace
  44 {
  45 /// Glue class to call RtfImport as an internal filter, needed by copy&paste support.
  46 class SwRTFReader : public Reader
  47 {
  48     ErrCode Read(SwDoc& rDoc, const OUString& rBaseURL, SwPaM& rPam,
  49                  const OUString& rFileName) override;
  50 };
  51 }
  52
  53 ErrCode SwRTFReader::Read(SwDoc& rDoc, const OUString& /*rBaseURL*/, SwPaM& rPam,
  54                           const OUString& /*rFileName*/)
  55 {
  56     if (!m_pStream)
  57         return ERR_SWG_READ_ERROR;
  58
  59     // We want to work in an empty paragraph.
  60     // Step 1: XTextRange will be updated when content is inserted, so we know
  61     // the end position.
  62     const rtl::Reference<SwXTextRange> xInsertPosition
  63         = SwXTextRange::CreateXTextRange(rDoc, *rPam.GetPoint(), nullptr);
  64     auto pSttNdIdx = std::make_shared<SwNodeIndex>(rDoc.GetNodes());
  65     const SwPosition* pPos = rPam.GetPoint();
  66
  67     // Step 2: Split once and remember the node that has been split.
  68     rDoc.getIDocumentContentOperations().SplitNode(*pPos, false);
  69     *pSttNdIdx = pPos->GetNodeIndex() - 1;
  70
  71     // Step 3: Split again.
  72     rDoc.getIDocumentContentOperations().SplitNode(*pPos, false);
  73     auto pSttNdIdx2 = std::make_shared<SwNodeIndex>(rDoc.GetNodes());
  74     *pSttNdIdx2 = pPos->GetNodeIndex();
  75
  76     // Step 4: Insert all content into the new node
  77     rPam.Move(fnMoveBackward);
  78     rDoc.SetTextFormatColl(
  79         rPam, rDoc.getIDocumentStylePoolAccess().GetTextCollFromPool(RES_POOLCOLL_STANDARD, false));
  80
  81     SwDocShell* pDocShell(rDoc.GetDocShell());
  82     uno::Reference<lang::XMultiServiceFactory> xMultiServiceFactory(
  83         comphelper::getProcessServiceFactory());
  84     uno::Reference<uno::XInterface> xInterface(
  85         xMultiServiceFactory->createInstance("com.sun.star.comp.Writer.RtfFilter"),
  86         uno::UNO_SET_THROW);
  87
  88     uno::Reference<document::XImporter> xImporter(xInterface, uno::UNO_QUERY_THROW);
  89     uno::Reference<lang::XComponent> xDstDoc(pDocShell->GetModel(), uno::UNO_QUERY_THROW);
  90     xImporter->setTargetDocument(xDstDoc);
  91
  92     const rtl::Reference<SwXTextRange> xInsertTextRange
  93         = SwXTextRange::CreateXTextRange(rDoc, *rPam.GetPoint(), nullptr);
  94
  95     uno::Reference<document::XFilter> xFilter(xInterface, uno::UNO_QUERY_THROW);
  96     uno::Sequence<beans::PropertyValue> aDescriptor(comphelper::InitPropertySequence(
  97         { { "InputStream",
  98             uno::Any(uno::Reference<io::XStream>(new utl::OStreamWrapper(*m_pStream))) },
  99           { "InsertMode", uno::Any(true) },
 100           { "TextInsertModeRange",
 101             uno::Any(uno::Reference<text::XTextRange>(xInsertTextRange)) } }));
 102     auto ret = ERRCODE_NONE;
 103     try
 104     {
 105         xFilter->filter(aDescriptor);
 106     }
 107     catch (uno::Exception const&)
 108     {
 109         TOOLS_WARN_EXCEPTION("sw.rtf", "SwRTFReader::Read()");
 110         ret = ERR_SWG_READ_ERROR;
 111     }
 112
 113     // Clean up the fake paragraphs.
 114     SwUnoInternalPaM aPam(rDoc);
 115     ::sw::XTextRangeToSwPaM(aPam, xInsertPosition);
 116     if (pSttNdIdx->GetIndex())
 117     {
 118         // If we are in insert mode, join the split node that is in front
 119         // of the new content with the first new node. Or in other words:
 120         // Revert the first split node.
 121         SwTextNode* pTextNode = pSttNdIdx->GetNode().GetTextNode();
 122         SwNodeIndex aNxtIdx(*pSttNdIdx);
 123         if (pTextNode && pTextNode->CanJoinNext(&aNxtIdx)
 124             && pSttNdIdx->GetIndex() + 1 == aNxtIdx.GetIndex())
 125         {
 126             // If the PaM points to the first new node, move the PaM to the
 127             // end of the previous node.
 128             if (aPam.GetPoint()->GetNode() == aNxtIdx.GetNode())
 129             {
 130                 aPam.GetPoint()->Assign(*pTextNode, pTextNode->GetText().getLength());
 131             }
 132             // If the first new node isn't empty, convert  the node's text
 133             // attributes into hints. Otherwise, set the new node's
 134             // paragraph style at the previous (empty) node.
 135             SwTextNode* pDelNd = aNxtIdx.GetNode().GetTextNode();
 136             if (pTextNode->GetText().getLength())
 137                 pDelNd->FormatToTextAttr(pTextNode);
 138             else
 139             {
 140                 pTextNode->ChgFormatColl(pDelNd->GetTextColl());
 141                 if (!pDelNd->GetNoCondAttr(RES_PARATR_LIST_ID, /*bInParents=*/false))
 142                 {
 143                     // Lists would need manual merging, but copy paragraph direct formatting
 144                     // otherwise.
 145                     pDelNd->CopyCollFormat(*pTextNode);
 146                 }
 147             }
 148             pTextNode->JoinNext();
 149         }
 150     }
 151
 152     if (pSttNdIdx2->GetIndex())
 153     {
 154         // If we are in insert mode, join the split node that is after
 155         // the new content with the last new node. Or in other words:
 156         // Revert the second split node.
 157         SwTextNode* pTextNode = pSttNdIdx2->GetNode().GetTextNode();
 158         SwNodeIndex aPrevIdx(*pSttNdIdx2);
 159         if (pTextNode && pTextNode->CanJoinPrev(&aPrevIdx)
 160             && pSttNdIdx2->GetIndex() - 1 == aPrevIdx.GetIndex())
 161         {
 162             // If the last new node isn't empty, convert  the node's text
 163             // attributes into hints. Otherwise, set the new node's
 164             // paragraph style at the next (empty) node.
 165             SwTextNode* pDelNd = aPrevIdx.GetNode().GetTextNode();
 166             if (pTextNode->GetText().getLength())
 167                 pDelNd->FormatToTextAttr(pTextNode);
 168             else
 169                 pTextNode->ChgFormatColl(pDelNd->GetTextColl());
 170             pTextNode->JoinPrev();
 171         }
 172     }
 173
 174     return ret;
 175 }
 176
 177 extern "C" SAL_DLLPUBLIC_EXPORT Reader* ImportRTF() { return new SwRTFReader; }
 178
 179 extern "C" SAL_DLLPUBLIC_EXPORT bool TestImportRTF(SvStream& rStream)
 180 {
 181     SwGlobals::ensure();
 182
 183     SfxObjectShellLock xDocSh(new SwDocShell(SfxObjectCreateMode::INTERNAL));
 184     xDocSh->DoInitNew();
 185
 186     uno::Reference<lang::XMultiServiceFactory> xMultiServiceFactory(
 187         comphelper::getProcessServiceFactory());
 188     uno::Reference<uno::XInterface> xInterface(
 189         xMultiServiceFactory->createInstance("com.sun.star.comp.Writer.RtfFilter"),
 190         uno::UNO_SET_THROW);
 191
 192     uno::Reference<document::XImporter> xImporter(xInterface, uno::UNO_QUERY_THROW);
 193     uno::Reference<lang::XComponent> xDstDoc(xDocSh->GetModel(), uno::UNO_QUERY_THROW);
 194     xImporter->setTargetDocument(xDstDoc);
 195
 196     uno::Reference<document::XFilter> xFilter(xInterface, uno::UNO_QUERY_THROW);
 197     uno::Sequence<beans::PropertyValue> aDescriptor(comphelper::InitPropertySequence(
 198         { { "InputStream",
 199             uno::Any(uno::Reference<io::XStream>(new utl::OStreamWrapper(rStream))) } }));
 200     bool bRet = true;
 201     try
 202     {
 203         xFilter->filter(aDescriptor);
 204     }
 205     catch (...)
 206     {
 207         bRet = false;
 208     }
 209     return bRet;
 210 }
 211
 212 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */