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Diffstat (limited to 'writerperfect/source/common/DirectoryStream.cxx')
| -rw-r--r-- | writerperfect/source/common/DirectoryStream.cxx | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/writerperfect/source/common/DirectoryStream.cxx b/writerperfect/source/common/DirectoryStream.cxx new file mode 100644 index 000000000..28c38daa6 --- /dev/null +++ b/writerperfect/source/common/DirectoryStream.cxx @@ -0,0 +1,221 @@ +/* -*- 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, std::u16string_view 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: */ |