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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <tools/stream.hxx>
#include <tools/XmlWriter.hxx>
#include <libxml/xmlwriter.h>
namespace tools
{
namespace
{
int funcWriteCallback(void* pContext, const char* sBuffer, int nLen)
{
SvStream* pStream = static_cast<SvStream*>(pContext);
return static_cast<int>(pStream->WriteBytes(sBuffer, nLen));
}
int funcCloseCallback(void* pContext)
{
SvStream* pStream = static_cast<SvStream*>(pContext);
pStream->Flush();
return 0; // 0 or -1 in case of error
}
} // end anonymous namespace
struct XmlWriterImpl
{
XmlWriterImpl(SvStream* pStream)
: mpStream(pStream)
, mpWriter(nullptr)
, mbWriteXmlHeader(true)
{
}
SvStream* mpStream;
xmlTextWriterPtr mpWriter;
bool mbWriteXmlHeader;
};
XmlWriter::XmlWriter(SvStream* pStream)
: mpImpl(std::make_unique<XmlWriterImpl>(pStream))
{
}
XmlWriter::~XmlWriter()
{
if (mpImpl && mpImpl->mpWriter != nullptr)
endDocument();
}
bool XmlWriter::startDocument(sal_Int32 nIndent, bool bWriteXmlHeader)
{
mpImpl->mbWriteXmlHeader = bWriteXmlHeader;
xmlCharEncodingHandlerPtr pEncodingHandler = xmlGetCharEncodingHandler(XML_CHAR_ENCODING_UTF8);
xmlOutputBufferPtr xmlOutBuffer = xmlOutputBufferCreateIO(funcWriteCallback, funcCloseCallback,
mpImpl->mpStream, pEncodingHandler);
mpImpl->mpWriter = xmlNewTextWriter(xmlOutBuffer);
if (mpImpl->mpWriter == nullptr)
return false;
xmlTextWriterSetIndent(mpImpl->mpWriter, nIndent);
if (mpImpl->mbWriteXmlHeader)
(void)xmlTextWriterStartDocument(mpImpl->mpWriter, nullptr, "UTF-8", nullptr);
return true;
}
void XmlWriter::endDocument()
{
if (mpImpl->mbWriteXmlHeader)
(void)xmlTextWriterEndDocument(mpImpl->mpWriter);
xmlFreeTextWriter(mpImpl->mpWriter);
mpImpl->mpWriter = nullptr;
}
void XmlWriter::startElement(const OString& sPrefix, const OString& sName,
const OString& sNamespaceUri)
{
xmlChar* xmlName = xmlCharStrdup(sName.getStr());
xmlChar* xmlPrefix = nullptr;
xmlChar* xmlNamespaceUri = nullptr;
if (!sPrefix.isEmpty())
xmlPrefix = xmlCharStrdup(sPrefix.getStr());
if (!sNamespaceUri.isEmpty())
xmlNamespaceUri = xmlCharStrdup(sNamespaceUri.getStr());
(void)xmlTextWriterStartElementNS(mpImpl->mpWriter, xmlPrefix, xmlName, xmlNamespaceUri);
xmlFree(xmlName);
if (!sPrefix.isEmpty())
xmlFree(xmlPrefix);
if (!sNamespaceUri.isEmpty())
xmlFree(xmlNamespaceUri);
}
void XmlWriter::startElement(const OString& sName)
{
xmlChar* xmlName = xmlCharStrdup(sName.getStr());
(void)xmlTextWriterStartElement(mpImpl->mpWriter, xmlName);
xmlFree(xmlName);
}
void XmlWriter::endElement() { (void)xmlTextWriterEndElement(mpImpl->mpWriter); }
void XmlWriter::attributeBase64(const OString& rsName, std::vector<sal_uInt8> const& rValueInBytes)
{
std::vector<char> aSignedBytes(rValueInBytes.begin(), rValueInBytes.end());
attributeBase64(rsName, aSignedBytes);
}
void XmlWriter::attributeBase64(const OString& rsName, std::vector<char> const& rValueInBytes)
{
xmlChar* xmlName = xmlCharStrdup(rsName.getStr());
(void)xmlTextWriterStartAttribute(mpImpl->mpWriter, xmlName);
(void)xmlTextWriterWriteBase64(mpImpl->mpWriter, rValueInBytes.data(), 0, rValueInBytes.size());
(void)xmlTextWriterEndAttribute(mpImpl->mpWriter);
xmlFree(xmlName);
}
void XmlWriter::attribute(const OString& name, const OString& value)
{
xmlChar* xmlName = xmlCharStrdup(name.getStr());
xmlChar* xmlValue = xmlCharStrdup(value.getStr());
(void)xmlTextWriterWriteAttribute(mpImpl->mpWriter, xmlName, xmlValue);
xmlFree(xmlValue);
xmlFree(xmlName);
}
void XmlWriter::attribute(const OString& name, std::u16string_view value)
{
attribute(name, OUStringToOString(value, RTL_TEXTENCODING_UTF8).getStr());
}
void XmlWriter::attribute(const OString& name, const sal_Int32 aNumber)
{
attribute(name, OUString::number(aNumber));
}
void XmlWriter::attributeDouble(const OString& name, const double aNumber)
{
attribute(name, OUString::number(aNumber));
}
void XmlWriter::content(const OString& sValue)
{
xmlChar* xmlValue = xmlCharStrdup(sValue.getStr());
(void)xmlTextWriterWriteString(mpImpl->mpWriter, xmlValue);
xmlFree(xmlValue);
}
void XmlWriter::content(std::u16string_view sValue)
{
content(OUStringToOString(sValue, RTL_TEXTENCODING_UTF8));
}
void XmlWriter::element(const OString& sName)
{
startElement(sName);
endElement();
}
} // end tools namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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