filter/source/svg/test/odfserializer.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 "odfserializer.hxx"
  21 #include <osl/diagnose.h>
  22 #include <rtl/ustrbuf.hxx>
  23 #include <cppuhelper/compbase.hxx>
  24 #include <cppuhelper/basemutex.hxx>
  25 #include <com/sun/star/uno/Sequence.hxx>
  26
  27 using namespace ::com::sun::star;
  28
  29 namespace svgi
  30 {
  31
  32 typedef ::cppu::WeakComponentImplHelper<
  33     css::xml::sax::XDocumentHandler> ODFSerializerBase;
  34
  35 class ODFSerializer : private cppu::BaseMutex,
  36                 public ODFSerializerBase
  37 {
  38 public:
  39     explicit ODFSerializer(const uno::Reference<io::XOutputStream>& xOut) :
  40         ODFSerializerBase(m_aMutex),
  41         m_xOutStream(xOut),
  42         m_aLineFeed(1),
  43         m_aBuf()
  44     {
  45         m_aLineFeed[0] = '\n';
  46     }
  47     ODFSerializer(const ODFSerializer&) = delete;
  48     ODFSerializer& operator=(const ODFSerializer&) = delete;
  49
  50     virtual void SAL_CALL startDocument(  ) override;
  51     virtual void SAL_CALL endDocument(  ) override;
  52     virtual void SAL_CALL startElement( const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs ) override;
  53     virtual void SAL_CALL endElement( const OUString& aName ) override;
  54     virtual void SAL_CALL characters( const OUString& aChars ) override;
  55     virtual void SAL_CALL ignorableWhitespace( const OUString& aWhitespaces ) override;
  56     virtual void SAL_CALL processingInstruction( const OUString& aTarget, const OUString& aData ) override;
  57     virtual void SAL_CALL setDocumentLocator( const uno::Reference< xml::sax::XLocator >& xLocator ) override;
  58
  59 private:
  60     uno::Reference<io::XOutputStream> m_xOutStream;
  61     uno::Sequence<sal_Int8>           m_aLineFeed;
  62     uno::Sequence<sal_Int8>           m_aBuf;
  63 };
  64
  65 void SAL_CALL ODFSerializer::startDocument(  )
  66 {
  67     OSL_PRECOND(m_xOutStream.is(), "ODFSerializer(): invalid output stream");
  68
  69     OUStringBuffer aElement;
  70     aElement.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
  71     characters(aElement.makeStringAndClear());
  72 }
  73
  74 void SAL_CALL ODFSerializer::endDocument()
  75 {}
  76
  77 void SAL_CALL ODFSerializer::startElement( const OUString& aName,
  78                                            const uno::Reference< xml::sax::XAttributeList >& xAttribs )
  79 {
  80     OUStringBuffer aElement("<" + aName + " ");
  81
  82     const sal_Int16 nLen=xAttribs->getLength();
  83     for( sal_Int16 i=0; i<nLen; ++i )
  84         aElement.append(xAttribs->getNameByIndex(i) + "=\"" +
  85                         xAttribs->getValueByIndex(i) + "\" ");
  86
  87     characters(aElement.makeStringAndClear() + ">");
  88 }
  89
  90 void SAL_CALL ODFSerializer::endElement( const OUString& aName )
  91 {
  92     characters("</" + aName + ">");
  93 }
  94
  95 void SAL_CALL ODFSerializer::characters( const OUString& aChars )
  96 {
  97     const OString aStr = OUStringToOString(aChars, RTL_TEXTENCODING_UTF8);
  98     const sal_Int32 nLen( aStr.getLength() );
  99     m_aBuf.realloc( nLen );
 100     const char* pStr = aStr.getStr();
 101     std::copy(pStr,pStr+nLen,m_aBuf.getArray());
 102
 103     m_xOutStream->writeBytes(m_aBuf);
 104     // TODO(F1): Make pretty printing configurable
 105     m_xOutStream->writeBytes(m_aLineFeed);
 106 }
 107
 108 void SAL_CALL ODFSerializer::ignorableWhitespace( const OUString& aWhitespaces )
 109 {
 110     // TODO(F1): Make pretty printing configurable
 111     characters(aWhitespaces);
 112 }
 113
 114 void SAL_CALL ODFSerializer::processingInstruction( const OUString&,
 115                                                     const OUString& )
 116 {}
 117
 118 void SAL_CALL ODFSerializer::setDocumentLocator( const uno::Reference< xml::sax::XLocator >& )
 119 {}
 120
 121 uno::Reference< xml::sax::XDocumentHandler> createSerializer(const uno::Reference<io::XOutputStream>& xOut )
 122 {
 123     return uno::Reference<xml::sax::XDocumentHandler>(new ODFSerializer(xOut));
 124 }
 125
 126 }
 127
 128 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */