sdext/source/pdfimport/sax/emitcontext.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
  21 #include <saxemitter.hxx>
  22 #include "emitcontext.hxx"
  23 #include "saxattrlist.hxx"
  24
  25 #include <rtl/strbuf.hxx>
  26 #include <osl/diagnose.h>
  27 #include <com/sun/star/xml/sax/SAXException.hpp>
  28 #include <xmloff/xmlimp.hxx>
  29
  30 #if OSL_DEBUG_LEVEL > 0
  31 #include <osl/file.hxx>
  32 static osl::File* pStream = nullptr;
  33 static int nIndent = 0;
  34 #endif
  35
  36 using namespace com::sun::star;
  37
  38 namespace pdfi
  39 {
  40
  41 SaxEmitter::SaxEmitter( const uno::Reference< xml::sax::XDocumentHandler >& xDocHdl ) :
  42     m_xDocHdl( xDocHdl )
  43 {
  44     OSL_PRECOND(m_xDocHdl.is(), "SaxEmitter(): invalid doc handler");
  45     if (SvXMLImport *pFastHandler = dynamic_cast<SvXMLImport*>(m_xDocHdl.get()))
  46         m_xDocHdl.set( new SvXMLLegacyToFastDocHandler( pFastHandler ) );
  47     try
  48     {
  49         m_xDocHdl->startDocument();
  50     }
  51     catch( xml::sax::SAXException& )
  52     {
  53     }
  54 #if OSL_DEBUG_LEVEL > 0
  55     static const char* pDir = getenv( "DBG_PDFIMPORT_DIR" );
  56     if( pDir )
  57     {
  58         OUString aStr( OStringToOUString( pDir, RTL_TEXTENCODING_UTF8 ) );
  59         OUString aFileURL;
  60         osl_getFileURLFromSystemPath( aStr.pData, &aFileURL.pData );
  61         pStream = new osl::File( aFileURL + "/pdfimport.xml" );
  62         if( pStream->open( osl_File_OpenFlag_Write | osl_File_OpenFlag_Create ) )
  63         {
  64             pStream->open( osl_File_OpenFlag_Write );
  65             pStream->setSize( 0 );
  66         }
  67     }
  68     else
  69         pStream = nullptr;
  70 #endif
  71 }
  72
  73 SaxEmitter::~SaxEmitter()
  74 {
  75     try
  76     {
  77         m_xDocHdl->endDocument();
  78     }
  79     catch( xml::sax::SAXException& )
  80     {
  81     }
  82 #if OSL_DEBUG_LEVEL > 0
  83     if( pStream )
  84     {
  85         pStream->close();
  86         delete pStream;
  87         pStream = nullptr;
  88     }
  89 #endif
  90 }
  91
  92 void SaxEmitter::beginTag( const char* pTag, const PropertyMap& rProperties )
  93 {
  94     OUString aTag = OUString::createFromAscii( pTag );
  95     uno::Reference< xml::sax::XAttributeList > xAttr(
  96         new SaxAttrList( rProperties ) );
  97     try
  98     {
  99         m_xDocHdl->startElement( aTag, xAttr );
 100     }
 101     catch( xml::sax::SAXException& )
 102     {
 103     }
 104 #if OSL_DEBUG_LEVEL > 0
 105     if( !pStream )
 106         return;
 107
 108     sal_uInt64 nWritten = 0;
 109     for( int i = 0; i < nIndent; i++ )
 110         pStream->write( "    ", 4, nWritten );
 111
 112     OStringBuffer aBuf( 1024 );
 113     aBuf.append( OString::Concat("<") + pTag );
 114     for( const auto& rProperty : rProperties )
 115     {
 116         aBuf.append( " "
 117             + OUStringToOString( rProperty.first, RTL_TEXTENCODING_UTF8 )
 118             + "=\""
 119             + OUStringToOString( rProperty.second, RTL_TEXTENCODING_UTF8 )
 120             + "\"" );
 121     }
 122     aBuf.append( ">\n" );
 123     pStream->write( aBuf.getStr(), aBuf.getLength(), nWritten );
 124     nIndent++;
 125 #endif
 126 }
 127
 128 void SaxEmitter::write( const OUString& rText )
 129 {
 130     try
 131     {
 132         m_xDocHdl->characters( rText );
 133     }
 134     catch( xml::sax::SAXException& )
 135     {
 136     }
 137 #if OSL_DEBUG_LEVEL > 0
 138     if( pStream )
 139     {
 140         OString aStr( OUStringToOString( rText, RTL_TEXTENCODING_UTF8 ) );
 141         sal_uInt64 nWritten = 0;
 142         pStream->write( aStr.getStr(), aStr.getLength(), nWritten );
 143     }
 144 #endif
 145 }
 146
 147 void SaxEmitter::endTag( const char* pTag )
 148 {
 149     OUString aTag = OUString::createFromAscii( pTag );
 150     try
 151     {
 152         m_xDocHdl->endElement( aTag );
 153     }
 154     catch( xml::sax::SAXException& )
 155     {
 156     }
 157 #if OSL_DEBUG_LEVEL > 0
 158     if( !pStream )
 159         return;
 160
 161     sal_uInt64 nWritten = 0;
 162     for( int i = 0; i < nIndent; i++ )
 163         pStream->write( "    ", 4, nWritten );
 164
 165     OString aBuf = OString::Concat("</") + pTag + ">\n";
 166     pStream->write( aBuf.getStr(), aBuf.getLength(), nWritten );
 167     nIndent--;
 168 #endif
 169 }
 170
 171 XmlEmitterSharedPtr createSaxEmitter( const uno::Reference< xml::sax::XDocumentHandler >& xDocHdl )
 172 {
 173     return std::make_shared<SaxEmitter>(xDocHdl);
 174 }
 175
 176 }
 177
 178 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */