1 files changed, 126 insertions, 0 deletions
diff --git a/ucb/source/ucp/gio/gio_seekable.cxx b/ucb/source/ucp/gio/gio_seekable.cxx
new file mode 100644
index 000000000..1f1da5948
--- /dev/null
+++ b/ucb/source/ucp/gio/gio_seekable.cxx
@@ -0,0 +1,126 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/io/NotConnectedException.hpp>
+#include <cppuhelper/queryinterface.hxx>
+
+#include "gio_seekable.hxx"
+#include "gio_content.hxx"
+
+namespace gio
+{
+
+Seekable::Seekable(GSeekable *pStream) : mpStream(pStream)
+{
+    if (!mpStream)
+        throw css::io::NotConnectedException();
+}
+
+Seekable::~Seekable()
+{
+}
+
+void SAL_CALL Seekable::truncate()
+{
+    if (!mpStream)
+        throw css::io::NotConnectedException();
+
+    if (!g_seekable_can_truncate(mpStream))
+        throw css::io::IOException("Truncate unsupported",
+            static_cast< cppu::OWeakObject * >(this));
+
+    GError *pError=nullptr;
+    if (!g_seekable_truncate(mpStream, 0, nullptr, &pError))
+        convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
+}
+
+void SAL_CALL Seekable::seek( sal_Int64 location )
+{
+    if (!mpStream)
+        throw css::io::NotConnectedException();
+
+    if (!g_seekable_can_seek(mpStream))
+        throw css::io::IOException("Seek unsupported",
+            static_cast< cppu::OWeakObject * >(this));
+
+    GError *pError=nullptr;
+    if (!g_seekable_seek(mpStream, location, G_SEEK_SET, nullptr, &pError))
+        convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
+}
+
+sal_Int64 SAL_CALL Seekable::getPosition()
+{
+    if (!mpStream)
+        throw css::io::NotConnectedException();
+
+    return g_seekable_tell(mpStream);
+}
+
+sal_Int64 SAL_CALL Seekable::getLength()
+{
+    if (!mpStream)
+        throw css::io::NotConnectedException();
+
+    bool bOk = false;
+    sal_uInt64 nSize = 0;
+
+    GFileInfo* pInfo = G_IS_FILE_INPUT_STREAM(mpStream)
+        ? g_file_input_stream_query_info(G_FILE_INPUT_STREAM(mpStream), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr)
+        : g_file_output_stream_query_info(G_FILE_OUTPUT_STREAM(mpStream), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr);
+
+    if (pInfo)
+    {
+        if (g_file_info_has_attribute(pInfo, G_FILE_ATTRIBUTE_STANDARD_SIZE))
+        {
+            nSize = g_file_info_get_size(pInfo);
+            bOk = true;
+        }
+        g_object_unref(pInfo);
+    }
+
+    if (!bOk)
+    {
+        GError *pError=nullptr;
+        sal_Int64 nCurr = getPosition();
+        if (!g_seekable_seek(mpStream, 0, G_SEEK_END, nullptr, &pError))
+            convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
+        nSize = getPosition();
+        seek(nCurr);
+    }
+
+    return nSize;
+}
+
+css::uno::Any Seekable::queryInterface( const css::uno::Type &type )
+{
+    css::uno::Any aRet = ::cppu::queryInterface ( type,
+        static_cast< XSeekable * >( this ) );
+
+    if (!aRet.hasValue() && g_seekable_can_truncate(mpStream))
+        aRet = ::cppu::queryInterface ( type, static_cast< XTruncate * >( this ) );
+
+    return aRet.hasValue() ? aRet : OWeakObject::queryInterface( type );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */