Adding upstream version 4:24.2.0.upstream/4%24.2.0

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

1 files changed, 256 insertions, 0 deletions

diff --git a/oox/source/helper/storagebase.cxx b/oox/source/helper/storagebase.cxx
new file mode 100644
index 0000000000..4646603631
--- /dev/null
+++ b/oox/source/helper/storagebase.cxx
@@ -0,0 +1,256 @@
+/* -*- 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 <oox/helper/storagebase.hxx>
+
+#include <com/sun/star/io/XStream.hpp>
+#include <osl/diagnose.h>
+#include <rtl/ustrbuf.hxx>
+#include <oox/helper/binaryinputstream.hxx>
+#include <oox/helper/binaryoutputstream.hxx>
+#include <utility>
+
+namespace oox {
+
+using namespace ::com::sun::star::embed;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::uno;
+
+namespace {
+
+void lclSplitFirstElement( OUString& orElement, OUString& orRemainder, const OUString& _aFullName )
+{
+    OUString aFullName = _aFullName;
+    sal_Int32  nSlashPos = aFullName.indexOf( '/' );
+
+    // strip leading slashes
+    while( nSlashPos == 0 )
+    {
+        aFullName = aFullName.copy(1);
+        nSlashPos = aFullName.indexOf( '/' );
+    }
+
+    if( (0 <= nSlashPos) && (nSlashPos < aFullName.getLength()) )
+    {
+        orElement = aFullName.copy( 0, nSlashPos );
+        orRemainder = aFullName.copy( nSlashPos + 1 );
+    }
+    else
+    {
+        orElement = aFullName;
+    }
+}
+
+} // namespace
+
+StorageBase::StorageBase( const Reference< XInputStream >& rxInStream, bool bBaseStreamAccess ) :
+    mxInStream( rxInStream ),
+    mbBaseStreamAccess( bBaseStreamAccess ),
+    mbReadOnly( true )
+{
+    OSL_ENSURE( mxInStream.is(), "StorageBase::StorageBase - missing base input stream" );
+}
+
+StorageBase::StorageBase( const Reference< XStream >& rxOutStream, bool bBaseStreamAccess ) :
+    mxOutStream( rxOutStream ),
+    mbBaseStreamAccess( bBaseStreamAccess ),
+    mbReadOnly( false )
+{
+    OSL_ENSURE( mxOutStream.is(), "StorageBase::StorageBase - missing base output stream" );
+}
+
+StorageBase::StorageBase( const StorageBase& rParentStorage, OUString aStorageName, bool bReadOnly ) :
+    maParentPath( rParentStorage.getPath() ),
+    maStorageName(std::move( aStorageName )),
+    mbBaseStreamAccess( false ),
+    mbReadOnly( bReadOnly )
+{
+}
+
+StorageBase::~StorageBase()
+{
+}
+
+bool StorageBase::isStorage() const
+{
+    return implIsStorage();
+}
+
+bool StorageBase::isRootStorage() const
+{
+    return implIsStorage() && maStorageName.isEmpty();
+}
+
+Reference< XStorage > StorageBase::getXStorage() const
+{
+    return implGetXStorage();
+}
+
+OUString StorageBase::getPath() const
+{
+    OUStringBuffer aBuffer( maParentPath );
+    if( !aBuffer.isEmpty() )
+        aBuffer.append( '/' );
+    aBuffer.append( maStorageName );
+    return aBuffer.makeStringAndClear();
+}
+
+void StorageBase::getElementNames( ::std::vector< OUString >& orElementNames ) const
+{
+    orElementNames.clear();
+    implGetElementNames( orElementNames );
+}
+
+StorageRef StorageBase::openSubStorage( const OUString& rStorageName, bool bCreateMissing )
+{
+    StorageRef xSubStorage;
+    OSL_ENSURE( !bCreateMissing || !mbReadOnly, "StorageBase::openSubStorage - cannot create substorage in read-only mode" );
+    if( !bCreateMissing || !mbReadOnly )
+    {
+        OUString aElement, aRemainder;
+        lclSplitFirstElement( aElement, aRemainder, rStorageName );
+        if( !aElement.isEmpty() )
+            xSubStorage = getSubStorage( aElement, bCreateMissing );
+        if( xSubStorage && !aRemainder.isEmpty() )
+            xSubStorage = xSubStorage->openSubStorage( aRemainder, bCreateMissing );
+    }
+    return xSubStorage;
+}
+
+Reference< XInputStream > StorageBase::openInputStream( const OUString& rStreamName )
+{
+    Reference< XInputStream > xInStream;
+    OUString aElement, aRemainder;
+    lclSplitFirstElement( aElement, aRemainder, rStreamName );
+    if( !aElement.isEmpty() )
+    {
+        if( !aRemainder.isEmpty() )
+        {
+            StorageRef xSubStorage = getSubStorage( aElement, false );
+            if( xSubStorage )
+                xInStream = xSubStorage->openInputStream( aRemainder );
+        }
+        else
+        {
+            xInStream = implOpenInputStream( aElement );
+        }
+    }
+    else if( mbBaseStreamAccess )
+    {
+        xInStream = mxInStream;
+    }
+    return xInStream;
+}
+
+Reference< XOutputStream > StorageBase::openOutputStream( const OUString& rStreamName )
+{
+    Reference< XOutputStream > xOutStream;
+    OSL_ENSURE( !mbReadOnly, "StorageBase::openOutputStream - cannot create output stream in read-only mode" );
+    if( !mbReadOnly )
+    {
+        OUString aElement, aRemainder;
+        lclSplitFirstElement( aElement, aRemainder, rStreamName );
+        if( !aElement.isEmpty() )
+        {
+            if( !aRemainder.isEmpty() )
+            {
+                StorageRef xSubStorage = getSubStorage( aElement, true );
+                if( xSubStorage )
+                    xOutStream = xSubStorage->openOutputStream( aRemainder );
+            }
+            else
+            {
+                xOutStream = implOpenOutputStream( aElement );
+            }
+        }
+        else if( mbBaseStreamAccess )
+        {
+            xOutStream = mxOutStream->getOutputStream();
+        }
+    }
+    return xOutStream;
+}
+
+void StorageBase::copyToStorage( StorageBase& rDestStrg, const OUString& rElementName )
+{
+    OSL_ENSURE( rDestStrg.isStorage() && !rDestStrg.isReadOnly(), "StorageBase::copyToStorage - invalid destination" );
+    OSL_ENSURE( !rElementName.isEmpty(), "StorageBase::copyToStorage - invalid element name" );
+    if( !rDestStrg.isStorage() || rDestStrg.isReadOnly() || rElementName.isEmpty() )
+        return;
+
+    StorageRef xSubStrg = openSubStorage( rElementName, false );
+    if( xSubStrg )
+    {
+        StorageRef xDestSubStrg = rDestStrg.openSubStorage( rElementName, true );
+        if( xDestSubStrg )
+            xSubStrg->copyStorageToStorage( *xDestSubStrg );
+    }
+    else
+    {
+        Reference< XInputStream > xInStrm = openInputStream( rElementName );
+        if( xInStrm.is() )
+        {
+            Reference< XOutputStream > xOutStrm = rDestStrg.openOutputStream( rElementName );
+            if( xOutStrm.is() )
+            {
+                BinaryXInputStream aInStrm( xInStrm, true );
+                BinaryXOutputStream aOutStrm( xOutStrm, true );
+                aInStrm.copyToStream( aOutStrm );
+            }
+        }
+    }
+}
+
+void StorageBase::copyStorageToStorage( StorageBase& rDestStrg )
+{
+    OSL_ENSURE( rDestStrg.isStorage() && !rDestStrg.isReadOnly(), "StorageBase::copyToStorage - invalid destination" );
+    if( rDestStrg.isStorage() && !rDestStrg.isReadOnly() )
+    {
+        ::std::vector< OUString > aElements;
+        getElementNames( aElements );
+        for (auto const& elem : aElements)
+            copyToStorage(rDestStrg, elem);
+    }
+}
+
+void StorageBase::commit()
+{
+    OSL_ENSURE( !mbReadOnly, "StorageBase::commit - cannot commit in read-only mode" );
+    if( !mbReadOnly )
+    {
+        // commit all open substorages
+        maSubStorages.forEachMem( &StorageBase::commit );
+        // commit this storage
+        implCommit();
+    }
+}
+
+// private --------------------------------------------------------------------
+
+StorageRef StorageBase::getSubStorage( const OUString& rElementName, bool bCreateMissing )
+{
+    StorageRef& rxSubStrg = maSubStorages[ rElementName ];
+    if( !rxSubStrg )
+        rxSubStrg = implOpenSubStorage( rElementName, bCreateMissing );
+    return rxSubStrg;
+}
+
+} // namespace oox
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */