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diff --git a/writerperfect/source/common/DirectoryStream.cxx b/writerperfect/source/common/DirectoryStream.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* writerperfect
+ * Version: MPL 2.0 / LGPLv2.1+
+ *
+ * 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/.
+ *
+ * Major Contributor(s):
+ * Copyright (C) 2007 Fridrich Strba (fridrich.strba@bluewin.ch)
+ *
+ * For minor contributions see the git repository.
+ *
+ * Alternatively, the contents of this file may be used under the terms
+ * of the GNU Lesser General Public License Version 2.1 or later
+ * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are
+ * applicable instead of those above.
+ *
+ * For further information visit http://libwpd.sourceforge.net
+ */
+
+#include <memory>
+#include <com/sun/star/container/XChild.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/sdbc/XResultSet.hpp>
+#include <com/sun/star/sdbc/XRow.hpp>
+#include <com/sun/star/ucb/XContent.hpp>
+#include <com/sun/star/ucb/XContentAccess.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+
+#include <comphelper/processfactory.hxx>
+
+#include <rtl/ustring.hxx>
+
+#include <ucbhelper/content.hxx>
+
+#include <DirectoryStream.hxx>
+#include <WPXSvInputStream.hxx>
+
+namespace io = com::sun::star::io;
+namespace sdbc = com::sun::star::sdbc;
+namespace ucb = com::sun::star::ucb;
+namespace uno = com::sun::star::uno;
+
+namespace writerperfect
+{
+namespace
+{
+uno::Reference<io::XInputStream> findStream(ucbhelper::Content& rContent, const OUString& rName)
+{
+ uno::Reference<io::XInputStream> xInputStream;
+
+ uno::Sequence<OUString> lPropNames{ "Title" };
+ try
+ {
+ const uno::Reference<sdbc::XResultSet> xResultSet(
+ rContent.createCursor(lPropNames, ucbhelper::INCLUDE_DOCUMENTS_ONLY));
+ if (xResultSet->first())
+ {
+ const uno::Reference<ucb::XContentAccess> xContentAccess(xResultSet,
+ uno::UNO_QUERY_THROW);
+ const uno::Reference<sdbc::XRow> xRow(xResultSet, uno::UNO_QUERY_THROW);
+ do
+ {
+ const OUString aTitle(xRow->getString(1));
+ if (aTitle == rName)
+ {
+ const uno::Reference<ucb::XContent> xSubContent(xContentAccess->queryContent());
+ ucbhelper::Content aSubContent(xSubContent,
+ uno::Reference<ucb::XCommandEnvironment>(),
+ comphelper::getProcessComponentContext());
+ xInputStream = aSubContent.openStream();
+ break;
+ }
+ } while (xResultSet->next());
+ }
+ }
+ catch (const uno::RuntimeException&)
+ {
+ // ignore
+ }
+ catch (const uno::Exception&)
+ {
+ // ignore
+ }
+
+ return xInputStream;
+}
+}
+
+struct DirectoryStream::Impl
+{
+ explicit Impl(const uno::Reference<ucb::XContent>& rxContent);
+
+ uno::Reference<ucb::XContent> xContent;
+};
+
+DirectoryStream::Impl::Impl(const uno::Reference<ucb::XContent>& rxContent)
+ : xContent(rxContent)
+{
+}
+
+DirectoryStream::DirectoryStream(const css::uno::Reference<css::ucb::XContent>& xContent)
+ : m_pImpl(isDirectory(xContent) ? new Impl(xContent) : nullptr)
+{
+}
+
+DirectoryStream::~DirectoryStream() {}
+
+bool DirectoryStream::isDirectory(const css::uno::Reference<css::ucb::XContent>& xContent)
+{
+ try
+ {
+ if (!xContent.is())
+ return false;
+
+ ucbhelper::Content aContent(xContent, uno::Reference<ucb::XCommandEnvironment>(),
+ comphelper::getProcessComponentContext());
+ return aContent.isFolder();
+ }
+ catch (...)
+ {
+ return false;
+ }
+}
+
+std::unique_ptr<DirectoryStream>
+DirectoryStream::createForParent(const css::uno::Reference<css::ucb::XContent>& xContent)
+{
+ try
+ {
+ if (!xContent.is())
+ return nullptr;
+
+ std::unique_ptr<DirectoryStream> pDir;
+
+ const uno::Reference<css::container::XChild> xChild(xContent, uno::UNO_QUERY);
+ if (xChild.is())
+ {
+ const uno::Reference<ucb::XContent> xDirContent(xChild->getParent(), uno::UNO_QUERY);
+ if (xDirContent.is())
+ {
+ pDir = std::make_unique<DirectoryStream>(xDirContent);
+ if (!pDir->isStructured())
+ pDir.reset();
+ }
+ }
+
+ return pDir;
+ }
+ catch (...)
+ {
+ return nullptr;
+ }
+}
+
+css::uno::Reference<css::ucb::XContent> DirectoryStream::getContent() const
+{
+ if (!m_pImpl)
+ return css::uno::Reference<css::ucb::XContent>();
+ return m_pImpl->xContent;
+}
+
+bool DirectoryStream::isStructured() { return m_pImpl != nullptr; }
+
+unsigned DirectoryStream::subStreamCount()
+{
+ // TODO: implement me
+ return 0;
+}
+
+const char* DirectoryStream::subStreamName(unsigned /* id */)
+{
+ // TODO: implement me
+ return nullptr;
+}
+
+bool DirectoryStream::existsSubStream(const char* /* name */)
+{
+ // TODO: implement me
+ return false;
+}
+
+librevenge::RVNGInputStream* DirectoryStream::getSubStreamByName(const char* const pName)
+{
+ if (!m_pImpl)
+ return nullptr;
+
+ ucbhelper::Content aContent(m_pImpl->xContent, uno::Reference<ucb::XCommandEnvironment>(),
+ comphelper::getProcessComponentContext());
+ const uno::Reference<io::XInputStream> xInputStream(
+ findStream(aContent, OUString::createFromAscii(pName)));
+ if (xInputStream.is())
+ return new WPXSvInputStream(xInputStream);
+
+ return nullptr;
+}
+
+librevenge::RVNGInputStream* DirectoryStream::getSubStreamById(unsigned /* id */)
+{
+ // TODO: implement me
+ return nullptr;
+}
+
+const unsigned char* DirectoryStream::read(unsigned long, unsigned long& nNumBytesRead)
+{
+ nNumBytesRead = 0;
+ return nullptr;
+}
+
+int DirectoryStream::seek(long, librevenge::RVNG_SEEK_TYPE) { return -1; }
+
+long DirectoryStream::tell() { return 0; }
+
+bool DirectoryStream::isEnd() { return true; }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */