Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 170 insertions, 0 deletions

diff --git a/tools/source/xml/XmlWriter.cxx b/tools/source/xml/XmlWriter.cxx
new file mode 100644
index 000000000..726b63966
--- /dev/null
+++ b/tools/source/xml/XmlWriter.cxx
@@ -0,0 +1,170 @@
+/* -*- 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: */