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, 2227 insertions, 0 deletions

diff --git a/vcl/source/treelist/transfer.cxx b/vcl/source/treelist/transfer.cxx
new file mode 100644
index 000000000..4506fa2ff
--- /dev/null
+++ b/vcl/source/treelist/transfer.cxx
@@ -0,0 +1,2227 @@
+/* -*- 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 .
+ */
+
+#ifdef _WIN32
+#include <prewin.h>
+#include <postwin.h>
+#include <shlobj.h>
+#endif
+#include <o3tl/char16_t2wchar_t.hxx>
+#include <osl/mutex.hxx>
+#include <rtl/uri.hxx>
+#include <sal/log.hxx>
+#include <tools/debug.hxx>
+#include <tools/urlobj.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <sot/exchange.hxx>
+#include <sot/storage.hxx>
+#include <vcl/bitmap.hxx>
+#include <vcl/filter/SvmReader.hxx>
+#include <vcl/filter/SvmWriter.hxx>
+#include <vcl/gdimtf.hxx>
+#include <vcl/graph.hxx>
+#include <vcl/cvtgrf.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <comphelper/fileformat.h>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <comphelper/sequence.hxx>
+#include <sot/filelist.hxx>
+#include <cppuhelper/implbase.hxx>
+
+#include <comphelper/seqstream.hxx>
+#include <com/sun/star/datatransfer/UnsupportedFlavorException.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboardNotifier.hpp>
+#include <com/sun/star/datatransfer/clipboard/XFlushableClipboard.hpp>
+#include <com/sun/star/datatransfer/MimeContentTypeFactory.hpp>
+#include <com/sun/star/datatransfer/XMimeContentType.hpp>
+#include <com/sun/star/datatransfer/XTransferable2.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+
+#include <svl/urlbmk.hxx>
+#include <vcl/inetimg.hxx>
+#include <vcl/wmf.hxx>
+#include <vcl/imap.hxx>
+#include <vcl/transfer.hxx>
+#include <rtl/strbuf.hxx>
+#include <cstdio>
+#include <vcl/dibtools.hxx>
+#include <vcl/filter/PngImageReader.hxx>
+#include <vcl/pngwrite.hxx>
+#include <vcl/graphicfilter.hxx>
+#include <memory>
+#include <utility>
+#include <vcl/TypeSerializer.hxx>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::frame;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::datatransfer;
+using namespace ::com::sun::star::datatransfer::clipboard;
+using namespace ::com::sun::star::datatransfer::dnd;
+using namespace std::literals::string_view_literals;
+
+
+#define TOD_SIG1 0x01234567
+#define TOD_SIG2 0x89abcdef
+
+SvStream& WriteTransferableObjectDescriptor( SvStream& rOStm, const TransferableObjectDescriptor& rObjDesc )
+{
+    const sal_uInt32    nFirstPos = rOStm.Tell(), nViewAspect = rObjDesc.mnViewAspect;
+    const sal_uInt32    nSig1 = TOD_SIG1, nSig2 = TOD_SIG2;
+
+    rOStm.SeekRel( 4 );
+    WriteSvGlobalName( rOStm, rObjDesc.maClassName );
+    rOStm.WriteUInt32( nViewAspect );
+    rOStm.WriteInt32( rObjDesc.maSize.Width() );
+    rOStm.WriteInt32( rObjDesc.maSize.Height() );
+    rOStm.WriteInt32( rObjDesc.maDragStartPos.X() );
+    rOStm.WriteInt32( rObjDesc.maDragStartPos.Y() );
+    rOStm.WriteUniOrByteString( rObjDesc.maTypeName, osl_getThreadTextEncoding() );
+    rOStm.WriteUniOrByteString( rObjDesc.maDisplayName, osl_getThreadTextEncoding() );
+    rOStm.WriteUInt32( nSig1 ).WriteUInt32( nSig2 );
+
+    const sal_uInt32 nLastPos = rOStm.Tell();
+
+    rOStm.Seek( nFirstPos );
+    rOStm.WriteUInt32( nLastPos - nFirstPos  );
+    rOStm.Seek( nLastPos );
+
+    return rOStm;
+}
+
+
+// the reading of the parameter is done using the special service css::datatransfer::MimeContentType,
+// a similar approach should be implemented for creation of the mimetype string;
+// for now the set of acceptable characters has to be hardcoded, in future it should be part of the service that creates the mimetype
+
+static OUString ImplGetParameterString( const TransferableObjectDescriptor& rObjDesc )
+{
+    const OUString   aClassName( rObjDesc.maClassName.GetHexName() );
+    OUString         aParams;
+
+    if( !aClassName.isEmpty() )
+    {
+        aParams += ";classname=\"" + aClassName + "\"";
+    }
+
+    if( !rObjDesc.maTypeName.isEmpty() )
+    {
+        aParams += ";typename=\""  + rObjDesc.maTypeName + "\"";
+    }
+
+    if( !rObjDesc.maDisplayName.isEmpty() )
+    {
+        // the display name might contain unacceptable characters, encode all of them
+        // this seems to be the only parameter currently that might contain such characters
+        static constexpr auto pToAccept = rtl::createUriCharClass(
+            u8"()<>@,;:/[]?=!#$&'*+-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ^_`abcdefghijklmnopqrstuvwxyz{|}~. ");
+
+        aParams += ";displayname=\""
+            + rtl::Uri::encode(
+                rObjDesc.maDisplayName, pToAccept.data(), rtl_UriEncodeIgnoreEscapes,
+                RTL_TEXTENCODING_UTF8)
+            + "\"";
+    }
+
+    aParams += ";viewaspect=\"" + OUString::number(rObjDesc.mnViewAspect)
+        + "\";width=\"" + OUString::number(rObjDesc.maSize.Width())
+        + "\";height=\"" + OUString::number(rObjDesc.maSize.Height())
+        + "\";posx=\"" + OUString::number(rObjDesc.maDragStartPos.X())
+        + "\";posy=\"" + OUString::number(rObjDesc.maDragStartPos.X()) + "\"";
+
+    return aParams;
+}
+
+
+static void ImplSetParameterString( TransferableObjectDescriptor& rObjDesc, const DataFlavorEx& rFlavorEx )
+{
+    Reference< XComponentContext >       xContext( ::comphelper::getProcessComponentContext() );
+
+    try
+    {
+        Reference< XMimeContentTypeFactory >  xMimeFact = MimeContentTypeFactory::create( xContext );
+
+        Reference< XMimeContentType > xMimeType( xMimeFact->createMimeContentType( rFlavorEx.MimeType ) );
+
+        if( xMimeType.is() )
+        {
+            static const OUStringLiteral aClassNameString( u"classname" );
+            static const OUStringLiteral aTypeNameString( u"typename" );
+            static const OUStringLiteral aDisplayNameString( u"displayname" );
+            static const OUStringLiteral aViewAspectString( u"viewaspect" );
+            static const OUStringLiteral aWidthString( u"width" );
+            static const OUStringLiteral aHeightString( u"height" );
+            static const OUStringLiteral aPosXString( u"posx" );
+            static const OUStringLiteral aPosYString( u"posy" );
+
+            if( xMimeType->hasParameter( aClassNameString ) )
+            {
+                rObjDesc.maClassName.MakeId( xMimeType->getParameterValue( aClassNameString ) );
+            }
+
+            if( xMimeType->hasParameter( aTypeNameString ) )
+            {
+                rObjDesc.maTypeName = xMimeType->getParameterValue( aTypeNameString );
+            }
+
+            if( xMimeType->hasParameter( aDisplayNameString ) )
+            {
+                // the display name might contain unacceptable characters, in this case they should be encoded
+                // this seems to be the only parameter currently that might contain such characters
+                rObjDesc.maDisplayName = ::rtl::Uri::decode( xMimeType->getParameterValue( aDisplayNameString ), rtl_UriDecodeWithCharset, RTL_TEXTENCODING_UTF8 );
+            }
+
+            if( xMimeType->hasParameter( aViewAspectString ) )
+            {
+                rObjDesc.mnViewAspect = static_cast< sal_uInt16 >( xMimeType->getParameterValue( aViewAspectString ).toInt32() );
+            }
+
+            if( xMimeType->hasParameter( aWidthString ) )
+            {
+                rObjDesc.maSize.setWidth( xMimeType->getParameterValue( aWidthString ).toInt32() );
+            }
+
+            if( xMimeType->hasParameter( aHeightString ) )
+            {
+                rObjDesc.maSize.setHeight( xMimeType->getParameterValue( aHeightString ).toInt32() );
+            }
+
+            if( xMimeType->hasParameter( aPosXString ) )
+            {
+                rObjDesc.maDragStartPos.setX( xMimeType->getParameterValue( aPosXString ).toInt32() );
+            }
+
+            if( xMimeType->hasParameter( aPosYString ) )
+            {
+                rObjDesc.maDragStartPos.setY( xMimeType->getParameterValue( aPosYString ).toInt32() );
+            }
+        }
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+
+TransferableHelper::TerminateListener::TerminateListener( TransferableHelper& rTransferableHelper ) :
+    mrParent( rTransferableHelper )
+{
+}
+
+
+TransferableHelper::TerminateListener::~TerminateListener()
+{
+}
+
+
+void SAL_CALL TransferableHelper::TerminateListener::disposing( const EventObject& )
+{
+}
+
+
+void SAL_CALL TransferableHelper::TerminateListener::queryTermination( const EventObject& )
+{
+}
+
+
+void SAL_CALL TransferableHelper::TerminateListener::notifyTermination( const EventObject& )
+{
+    mrParent.ImplFlush();
+}
+
+OUString SAL_CALL TransferableHelper::TerminateListener::getImplementationName()
+{
+    return "com.sun.star.comp.svt.TransferableHelperTerminateListener";
+}
+
+sal_Bool SAL_CALL TransferableHelper::TerminateListener::supportsService(const OUString& /*rServiceName*/)
+{
+    return false;
+}
+
+css::uno::Sequence<OUString> TransferableHelper::TerminateListener::getSupportedServiceNames()
+{
+    return {};
+}
+
+TransferableHelper::~TransferableHelper()
+{
+    css::uno::Reference<css::frame::XTerminateListener> listener;
+    {
+        const SolarMutexGuard aGuard;
+        std::swap(listener, mxTerminateListener);
+    }
+    if (listener.is()) {
+        Desktop::create(comphelper::getProcessComponentContext())->removeTerminateListener(
+            listener);
+    }
+}
+
+Any SAL_CALL TransferableHelper::getTransferData( const DataFlavor& rFlavor )
+{
+    return getTransferData2(rFlavor, OUString());
+}
+
+Any SAL_CALL TransferableHelper::getTransferData2( const DataFlavor& rFlavor, const OUString& rDestDoc )
+{
+    if( !maAny.hasValue() || maFormats.empty() || ( maLastFormat != rFlavor.MimeType ) )
+    {
+        const SolarMutexGuard aGuard;
+
+        maLastFormat = rFlavor.MimeType;
+        maAny = Any();
+
+        try
+        {
+            DataFlavor  aSubstFlavor;
+            bool        bDone = false;
+
+            // add formats if not already done
+            if (maFormats.empty())
+                AddSupportedFormats();
+
+            // check alien formats first and try to get a substitution format
+            if( SotExchange::GetFormatDataFlavor( SotClipboardFormatId::STRING, aSubstFlavor ) &&
+                TransferableDataHelper::IsEqual( aSubstFlavor, rFlavor ) )
+            {
+                GetData(aSubstFlavor, rDestDoc);
+                bDone = maAny.hasValue();
+            }
+            else if(SotExchange::GetFormatDataFlavor(SotClipboardFormatId::BMP, aSubstFlavor )
+                && TransferableDataHelper::IsEqual( aSubstFlavor, rFlavor )
+                && SotExchange::GetFormatDataFlavor(SotClipboardFormatId::BITMAP, aSubstFlavor))
+            {
+                GetData(aSubstFlavor, rDestDoc);
+                bDone = true;
+            }
+            else if( SotExchange::GetFormatDataFlavor( SotClipboardFormatId::EMF, aSubstFlavor ) &&
+                     TransferableDataHelper::IsEqual( aSubstFlavor, rFlavor ) &&
+                     SotExchange::GetFormatDataFlavor( SotClipboardFormatId::GDIMETAFILE, aSubstFlavor ) )
+            {
+                GetData(aSubstFlavor, rDestDoc);
+
+                if( maAny.hasValue() )
+                {
+                    Sequence< sal_Int8 > aSeq;
+
+                    if( maAny >>= aSeq )
+                    {
+                        GDIMetaFile     aMtf;
+                        {
+                            SvMemoryStream aSrcStm( aSeq.getArray(), aSeq.getLength(), StreamMode::WRITE | StreamMode::TRUNC );
+                            SvmReader aReader( aSrcStm );
+                            aReader.Read( aMtf );
+                        }
+
+                        Graphic         aGraphic( aMtf );
+                        SvMemoryStream  aDstStm( 65535, 65535 );
+
+                        if( GraphicConverter::Export( aDstStm, aGraphic, ConvertDataFormat::EMF ) == ERRCODE_NONE )
+                        {
+                            maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aDstStm.GetData() ),
+                                                            aDstStm.TellEnd() );
+                            bDone = true;
+                        }
+                    }
+                }
+            }
+            else if( SotExchange::GetFormatDataFlavor( SotClipboardFormatId::WMF, aSubstFlavor ) &&
+                     TransferableDataHelper::IsEqual( aSubstFlavor, rFlavor ) &&
+                     SotExchange::GetFormatDataFlavor( SotClipboardFormatId::GDIMETAFILE, aSubstFlavor ) )
+            {
+                GetData(aSubstFlavor, rDestDoc);
+
+                if( maAny.hasValue() )
+                {
+                    Sequence< sal_Int8 > aSeq;
+
+                    if( maAny >>= aSeq )
+                    {
+                        GDIMetaFile     aMtf;
+                        {
+                            SvMemoryStream aSrcStm( aSeq.getArray(), aSeq.getLength(), StreamMode::WRITE | StreamMode::TRUNC );
+                            SvmReader aReader( aSrcStm );
+                            aReader.Read( aMtf );
+                        }
+
+                        SvMemoryStream  aDstStm( 65535, 65535 );
+
+                        // taking wmf without file header
+                        if ( ConvertGDIMetaFileToWMF( aMtf, aDstStm, nullptr, false ) )
+                        {
+                            maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aDstStm.GetData() ),
+                                                            aDstStm.TellEnd() );
+                            bDone = true;
+                        }
+                    }
+                }
+            }
+
+            // reset Any if substitute doesn't work
+            if( !bDone && maAny.hasValue() )
+                maAny = Any();
+
+            // if any is not yet filled, use standard format
+            if( !maAny.hasValue() )
+                GetData(rFlavor, rDestDoc);
+        }
+        catch( const css::uno::Exception& )
+        {
+        }
+
+        if( !maAny.hasValue() )
+            throw UnsupportedFlavorException();
+    }
+
+    return maAny;
+}
+
+sal_Bool SAL_CALL TransferableHelper::isComplex()
+{
+    // By default everything is complex, until proven otherwise
+    // in the respective document type transferable handler.
+    return true;
+}
+
+Sequence< DataFlavor > SAL_CALL TransferableHelper::getTransferDataFlavors()
+{
+    const SolarMutexGuard aGuard;
+
+    try
+    {
+        if(maFormats.empty())
+            AddSupportedFormats();
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+
+    return comphelper::containerToSequence<DataFlavor>(maFormats);
+}
+
+
+sal_Bool SAL_CALL TransferableHelper::isDataFlavorSupported( const DataFlavor& rFlavor )
+{
+    const SolarMutexGuard aGuard;
+
+    try
+    {
+        if (maFormats.empty())
+            AddSupportedFormats();
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+
+    for (auto const& format : maFormats)
+    {
+        if( TransferableDataHelper::IsEqual( format, rFlavor ) )
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+
+void SAL_CALL TransferableHelper::lostOwnership( const Reference< XClipboard >&, const Reference< XTransferable >& )
+{
+    const SolarMutexGuard aGuard;
+
+    try
+    {
+        if( mxTerminateListener.is() )
+        {
+            Reference< XDesktop2 > xDesktop = Desktop::create( ::comphelper::getProcessComponentContext() );
+            xDesktop->removeTerminateListener( mxTerminateListener );
+
+            mxTerminateListener.clear();
+        }
+
+        ObjectReleased();
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+
+void SAL_CALL TransferableHelper::disposing( const EventObject& )
+{
+}
+
+
+void SAL_CALL TransferableHelper::dragDropEnd( const DragSourceDropEvent& rDSDE )
+{
+    const SolarMutexGuard aGuard;
+
+    try
+    {
+        DragFinished( rDSDE.DropSuccess ? ( rDSDE.DropAction & ~DNDConstants::ACTION_DEFAULT ) : DNDConstants::ACTION_NONE );
+        ObjectReleased();
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+
+void SAL_CALL TransferableHelper::dragEnter( const DragSourceDragEvent& )
+{
+}
+
+
+void SAL_CALL TransferableHelper::dragExit( const DragSourceEvent& )
+{
+}
+
+
+void SAL_CALL TransferableHelper::dragOver( const DragSourceDragEvent& )
+{
+}
+
+
+void SAL_CALL TransferableHelper::dropActionChanged( const DragSourceDragEvent& )
+{
+}
+
+
+sal_Int64 SAL_CALL TransferableHelper::getSomething( const Sequence< sal_Int8 >& rId )
+{
+    return comphelper::getSomethingImpl(rId, this);
+}
+
+
+void TransferableHelper::ImplFlush()
+{
+    if( !mxClipboard.is() )
+        return;
+
+    Reference< XFlushableClipboard >    xFlushableClipboard( mxClipboard, UNO_QUERY );
+    SolarMutexReleaser aReleaser;
+
+    try
+    {
+        if( xFlushableClipboard.is() )
+             xFlushableClipboard->flushClipboard();
+    }
+    catch( const css::uno::Exception& )
+    {
+        OSL_FAIL( "Could not flush clipboard" );
+    }
+}
+
+
+void TransferableHelper::AddFormat( SotClipboardFormatId nFormat )
+{
+    DataFlavor aFlavor;
+
+    if( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) )
+        AddFormat( aFlavor );
+}
+
+
+void TransferableHelper::AddFormat( const DataFlavor& rFlavor )
+{
+    bool bAdd = true;
+
+    for (auto & format : maFormats)
+    {
+        if( TransferableDataHelper::IsEqual( format, rFlavor ) )
+        {
+            // update MimeType for SotClipboardFormatId::OBJECTDESCRIPTOR in every case
+            if ((SotClipboardFormatId::OBJECTDESCRIPTOR == format.mnSotId) && mxObjDesc)
+            {
+                DataFlavor aObjDescFlavor;
+
+                SotExchange::GetFormatDataFlavor( SotClipboardFormatId::OBJECTDESCRIPTOR, aObjDescFlavor );
+                format.MimeType = aObjDescFlavor.MimeType;
+                format.MimeType += ::ImplGetParameterString(*mxObjDesc);
+            }
+
+            bAdd = false;
+            break;
+        }
+    }
+
+    if( !bAdd )
+        return;
+
+    DataFlavorEx   aFlavorEx;
+
+    aFlavorEx.MimeType = rFlavor.MimeType;
+    aFlavorEx.HumanPresentableName = rFlavor.HumanPresentableName;
+    aFlavorEx.DataType = rFlavor.DataType;
+    aFlavorEx.mnSotId = SotExchange::RegisterFormat( rFlavor );
+
+    if ((SotClipboardFormatId::OBJECTDESCRIPTOR == aFlavorEx.mnSotId) && mxObjDesc)
+        aFlavorEx.MimeType += ::ImplGetParameterString(*mxObjDesc);
+
+    maFormats.push_back(aFlavorEx);
+
+    if( SotClipboardFormatId::BITMAP == aFlavorEx.mnSotId )
+    {
+        AddFormat( SotClipboardFormatId::PNG );
+        AddFormat( SotClipboardFormatId::BMP );
+    }
+    else if( SotClipboardFormatId::GDIMETAFILE == aFlavorEx.mnSotId )
+    {
+        AddFormat( SotClipboardFormatId::EMF );
+        AddFormat( SotClipboardFormatId::WMF );
+    }
+}
+
+
+void TransferableHelper::RemoveFormat( SotClipboardFormatId nFormat )
+{
+    DataFlavor aFlavor;
+
+    if( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) )
+        RemoveFormat( aFlavor );
+}
+
+
+void TransferableHelper::RemoveFormat( const DataFlavor& rFlavor )
+{
+    DataFlavorExVector::iterator aIter(maFormats.begin());
+
+    while (aIter != maFormats.end())
+    {
+        if( TransferableDataHelper::IsEqual( *aIter, rFlavor ) )
+            aIter = maFormats.erase(aIter);
+        else
+            ++aIter;
+    }
+}
+
+
+bool TransferableHelper::HasFormat( SotClipboardFormatId nFormat )
+{
+    return std::any_of(maFormats.begin(), maFormats.end(),
+              [&](const DataFlavorEx& data) { return data.mnSotId == nFormat; });
+}
+
+
+void TransferableHelper::ClearFormats()
+{
+    maFormats.clear();
+    maAny.clear();
+}
+
+
+bool TransferableHelper::SetAny( const Any& rAny )
+{
+    maAny = rAny;
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetString( const OUString& rString )
+{
+    maAny <<= rString;
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetBitmapEx( const BitmapEx& rBitmapEx, const DataFlavor& rFlavor )
+{
+    if( !rBitmapEx.IsEmpty() )
+    {
+        SvMemoryStream aMemStm( 65535, 65535 );
+
+        if(rFlavor.MimeType.equalsIgnoreAsciiCase("image/png"))
+        {
+            // write a PNG
+            css::uno::Sequence<css::beans::PropertyValue> aFilterData;
+
+#ifdef IOS
+            // Use faster compression on slow devices
+            aFilterData.realloc(aFilterData.getLength() + 1);
+            aFilterData.getArray()[aFilterData.getLength() - 1].Name = "Compression";
+
+            // We "know" that this gets passed to zlib's deflateInit2_(). 1 means best speed. For a
+            // typical 15 megapixel image from a DSLR, we are talking about a difference of 17 s for
+            // the default compression level vs 4 s for best speed, on an iPad Pro from 2017.
+            //
+            // Sure, the best would be to not have to re-encode the image at all, but have access to
+            // the original JPEG or PNG when there is a such.
+
+            aFilterData.getArray()[aFilterData.getLength() - 1].Value <<= 1;
+#endif
+            vcl::PNGWriter aPNGWriter(rBitmapEx, &aFilterData);
+
+            aPNGWriter.Write(aMemStm);
+        }
+        else
+        {
+            // explicitly use Bitmap::Write with bCompressed = sal_False and bFileHeader = sal_True
+            WriteDIB(rBitmapEx.GetBitmap(), aMemStm, false, true);
+        }
+
+        maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), aMemStm.TellEnd() );
+    }
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetGDIMetaFile( const GDIMetaFile& rMtf )
+{
+    if( rMtf.GetActionSize() )
+    {
+        SvMemoryStream aMemStm( 65535, 65535 );
+
+        SvmWriter aWriter( aMemStm );
+        aWriter.Write( rMtf );
+        maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), aMemStm.TellEnd() );
+    }
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetGraphic( const Graphic& rGraphic )
+{
+    if( rGraphic.GetType() != GraphicType::NONE )
+    {
+        SvMemoryStream aMemStm( 65535, 65535 );
+
+        aMemStm.SetVersion( SOFFICE_FILEFORMAT_50 );
+        aMemStm.SetCompressMode( SvStreamCompressFlags::NATIVE );
+
+        TypeSerializer aSerializer(aMemStm);
+        aSerializer.writeGraphic(rGraphic);
+
+        maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), aMemStm.TellEnd() );
+    }
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetImageMap( const ImageMap& rIMap )
+{
+    SvMemoryStream aMemStm( 8192, 8192 );
+
+    aMemStm.SetVersion( SOFFICE_FILEFORMAT_50 );
+    rIMap.Write( aMemStm );
+    maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), aMemStm.TellEnd() );
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetTransferableObjectDescriptor( const TransferableObjectDescriptor& rDesc )
+{
+    PrepareOLE( rDesc );
+
+    SvMemoryStream aMemStm( 1024, 1024 );
+
+    WriteTransferableObjectDescriptor( aMemStm, rDesc );
+    maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), aMemStm.Tell() );
+
+    return maAny.hasValue();
+ }
+
+
+bool TransferableHelper::SetINetBookmark( const INetBookmark& rBmk,
+                                          const css::datatransfer::DataFlavor& rFlavor )
+{
+    rtl_TextEncoding eSysCSet = osl_getThreadTextEncoding();
+
+    switch( SotExchange::GetFormat( rFlavor ) )
+    {
+        case SotClipboardFormatId::SOLK:
+        {
+            OString sURL(OUStringToOString(rBmk.GetURL(), eSysCSet));
+            OString sDesc(OUStringToOString(rBmk.GetDescription(), eSysCSet));
+            OStringBuffer sOut;
+            sOut.append(sURL.getLength());
+            sOut.append("@" + sURL);
+            sOut.append(sDesc.getLength());
+            sOut.append("@" + sDesc);
+
+            Sequence< sal_Int8 > aSeq(sOut.getLength());
+            memcpy(aSeq.getArray(), sOut.getStr(), sOut.getLength());
+            maAny <<= aSeq;
+        }
+        break;
+
+        case SotClipboardFormatId::STRING:
+        case SotClipboardFormatId::UNIFORMRESOURCELOCATOR:
+            maAny <<= rBmk.GetURL();
+            break;
+
+        case SotClipboardFormatId::NETSCAPE_BOOKMARK:
+        {
+            Sequence< sal_Int8 > aSeq( 2048 );
+            char* pSeq = reinterpret_cast< char* >( aSeq.getArray() );
+
+            // strncpy fills the rest with nulls, as we need
+            strncpy( pSeq, OUStringToOString(rBmk.GetURL(), eSysCSet).getStr(), 1024 );
+            strncpy( pSeq + 1024, OUStringToOString(rBmk.GetDescription(), eSysCSet).getStr(), 1024 );
+
+            maAny <<= aSeq;
+        }
+        break;
+
+#ifdef _WIN32
+        case SotClipboardFormatId::FILEGRPDESCRIPTOR:
+        {
+            Sequence< sal_Int8 >    aSeq( sizeof( FILEGROUPDESCRIPTORW ) );
+            FILEGROUPDESCRIPTORW*   pFDesc = reinterpret_cast<FILEGROUPDESCRIPTORW*>(aSeq.getArray());
+            FILEDESCRIPTORW&        rFDesc1 = pFDesc->fgd[ 0 ];
+
+            pFDesc->cItems = 1;
+            memset( &rFDesc1, 0, sizeof( rFDesc1 ) );
+            rFDesc1.dwFlags = FD_LINKUI;
+
+            OUStringBuffer aStr(rBmk.GetDescription());
+            for( size_t nChar = 0; (nChar = std::u16string_view(aStr).find_first_of(u"\\/:*?\"<>|"sv, nChar)) != std::u16string_view::npos; )
+                aStr.remove(nChar, 1);
+
+            aStr.insert(0, "Shortcut to ");
+            aStr.append(".URL");
+            wcscpy( rFDesc1.cFileName, o3tl::toW(aStr.getStr()) );
+
+            maAny <<= aSeq;
+        }
+        break;
+
+        case SotClipboardFormatId::FILECONTENT:
+        {
+            maAny <<= "[InternetShortcut]\x0aURL=" + rBmk.GetURL();
+        }
+        break;
+#endif
+
+        default:
+        break;
+    }
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetINetImage( const INetImage& rINtImg,
+                                       const css::datatransfer::DataFlavor& rFlavor )
+{
+    SvMemoryStream aMemStm( 1024, 1024 );
+
+    aMemStm.SetVersion( SOFFICE_FILEFORMAT_50 );
+    rINtImg.Write( aMemStm, SotExchange::GetFormat( rFlavor ) );
+
+    maAny <<= Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), aMemStm.TellEnd() );
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::SetObject( void* pUserObject, sal_uInt32 nUserObjectId, const DataFlavor& rFlavor )
+{
+    tools::SvRef<SotTempStream> xStm( new SotTempStream( OUString() ) );
+
+    xStm->SetVersion( SOFFICE_FILEFORMAT_50 );
+
+    if( pUserObject && WriteObject( xStm, pUserObject, nUserObjectId, rFlavor ) )
+    {
+        const sal_uInt32        nLen = xStm->TellEnd();
+        Sequence< sal_Int8 >    aSeq( nLen );
+
+        xStm->Seek( STREAM_SEEK_TO_BEGIN );
+        xStm->ReadBytes(aSeq.getArray(), nLen);
+
+        if( nLen && ( SotExchange::GetFormat( rFlavor ) == SotClipboardFormatId::STRING ) )
+        {
+            //JP 24.7.2001: as I know was this only for the writer application and this
+            //              writes now UTF16 format into the stream
+            //JP 6.8.2001:  and now it writes UTF8 because then exist no problem with
+            //              little / big endians! - Bug 88121
+            maAny <<= OUString( reinterpret_cast< const char* >( aSeq.getConstArray() ), nLen - 1, RTL_TEXTENCODING_UTF8 );
+        }
+        else
+            maAny <<= aSeq;
+    }
+
+    return maAny.hasValue();
+}
+
+
+bool TransferableHelper::WriteObject( tools::SvRef<SotTempStream>&, void*, sal_uInt32, const DataFlavor& )
+{
+    OSL_FAIL( "TransferableHelper::WriteObject( ... ) not implemented" );
+    return false;
+}
+
+
+void TransferableHelper::DragFinished( sal_Int8 )
+{
+}
+
+
+void TransferableHelper::ObjectReleased()
+{
+}
+
+
+void TransferableHelper::PrepareOLE( const TransferableObjectDescriptor& rObjDesc )
+{
+    mxObjDesc.reset(new TransferableObjectDescriptor(rObjDesc));
+
+    if( HasFormat( SotClipboardFormatId::OBJECTDESCRIPTOR ) )
+        AddFormat( SotClipboardFormatId::OBJECTDESCRIPTOR );
+}
+
+void TransferableHelper::CopyToClipboard(const Reference<XClipboard>& rClipboard) const
+{
+    if( rClipboard.is() )
+        mxClipboard = rClipboard;
+
+    if( !mxClipboard.is() || mxTerminateListener.is() )
+        return;
+
+    try
+    {
+        TransferableHelper* pThis = const_cast< TransferableHelper* >( this );
+        pThis->mxTerminateListener = new TerminateListener( *pThis );
+        Reference< XDesktop2 > xDesktop = Desktop::create( ::comphelper::getProcessComponentContext() );
+        xDesktop->addTerminateListener( pThis->mxTerminateListener );
+
+        mxClipboard->setContents( pThis, pThis );
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+void TransferableHelper::CopyToClipboard( vcl::Window *pWindow ) const
+{
+    DBG_ASSERT( pWindow, "Window pointer is NULL" );
+    Reference< XClipboard > xClipboard;
+
+    if( pWindow )
+        xClipboard = pWindow->GetClipboard();
+
+    CopyToClipboard(xClipboard);
+}
+
+void TransferableHelper::CopyToSelection(const Reference<XClipboard>& rSelection) const
+{
+    if( !rSelection.is() || mxTerminateListener.is() )
+        return;
+
+    try
+    {
+        TransferableHelper* pThis = const_cast< TransferableHelper* >( this );
+        pThis->mxTerminateListener = new TerminateListener( *pThis );
+        Reference< XDesktop2 > xDesktop = Desktop::create( ::comphelper::getProcessComponentContext() );
+        xDesktop->addTerminateListener( pThis->mxTerminateListener );
+
+        rSelection->setContents( pThis, pThis );
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+void TransferableHelper::CopyToPrimarySelection() const
+{
+    CopyToSelection(GetSystemPrimarySelection());
+}
+
+void TransferableHelper::StartDrag( vcl::Window* pWindow, sal_Int8 nDnDSourceActions )
+
+{
+    DBG_ASSERT( pWindow, "Window pointer is NULL" );
+    Reference< XDragSource > xDragSource( pWindow->GetDragSource() );
+
+    if( !xDragSource.is() )
+        return;
+
+    /*
+     *    #96792# release mouse before actually starting DnD.
+     *    This is necessary for the X11 DnD implementation to work.
+     */
+    if( pWindow->IsMouseCaptured() )
+        pWindow->ReleaseMouse();
+
+    const Point aPt( pWindow->GetPointerPosPixel() );
+
+    // On macOS we are forced to execute 'startDrag' synchronously
+    // contrary to the XDragSource interface specification because
+    // we can receive drag events from the system only in the main
+    // thread
+#if !defined(MACOSX)
+    SolarMutexReleaser aReleaser;
+#endif
+
+    try
+    {
+        DragGestureEvent    aEvt;
+        aEvt.DragAction = DNDConstants::ACTION_COPY;
+        aEvt.DragOriginX = aPt.X();
+        aEvt.DragOriginY = aPt.Y();
+        aEvt.DragSource = xDragSource;
+
+        xDragSource->startDrag( aEvt, nDnDSourceActions, DND_POINTER_NONE, DND_IMAGE_NONE, this, this );
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+void TransferableHelper::ClearPrimarySelection()
+{
+    Reference< XClipboard > xSelection(GetSystemPrimarySelection());
+
+    if( xSelection.is() )
+        xSelection->setContents( nullptr, nullptr );
+}
+
+const Sequence< sal_Int8 >& TransferableHelper::getUnoTunnelId()
+{
+    static const comphelper::UnoIdInit theTransferableHelperUnoTunnelId;
+    return theTransferableHelperUnoTunnelId.getSeq();
+}
+
+namespace {
+
+class TransferableClipboardNotifier : public ::cppu::WeakImplHelper< XClipboardListener >
+{
+private:
+    ::osl::Mutex&                   mrMutex;
+    Reference< XClipboardNotifier > mxNotifier;
+    TransferableDataHelper*         mpListener;
+
+protected:
+    // XClipboardListener
+    virtual void SAL_CALL changedContents( const clipboard::ClipboardEvent& event ) override;
+
+    // XEventListener
+    virtual void SAL_CALL disposing( const EventObject& Source ) override;
+
+public:
+    TransferableClipboardNotifier( const Reference< XClipboard >& _rxClipboard, TransferableDataHelper& _rListener, ::osl::Mutex& _rMutex );
+
+    /// determines whether we're currently listening
+    bool isListening() const { return mpListener != nullptr; }
+
+    /// makes the instance non-functional
+    void    dispose();
+};
+
+}
+
+TransferableClipboardNotifier::TransferableClipboardNotifier( const Reference< XClipboard >& _rxClipboard, TransferableDataHelper& _rListener, ::osl::Mutex& _rMutex )
+    :mrMutex( _rMutex )
+    ,mxNotifier( _rxClipboard, UNO_QUERY )
+    ,mpListener( &_rListener )
+{
+    osl_atomic_increment( &m_refCount );
+    {
+        if ( mxNotifier.is() )
+            mxNotifier->addClipboardListener( this );
+        else
+            // born dead
+            mpListener = nullptr;
+    }
+    osl_atomic_decrement( &m_refCount );
+}
+
+
+void SAL_CALL TransferableClipboardNotifier::changedContents( const clipboard::ClipboardEvent& event )
+{
+    SolarMutexGuard aSolarGuard;
+        // the SolarMutex here is necessary, since
+        // - we cannot call mpListener without our own mutex locked
+        // - Rebind respectively InitFormats (called by Rebind) will
+        // try to lock the SolarMutex, too
+    ::osl::MutexGuard aGuard( mrMutex );
+    if( mpListener )
+        mpListener->Rebind( event.Contents );
+}
+
+
+void SAL_CALL TransferableClipboardNotifier::disposing( const EventObject& )
+{
+    // clipboard is being disposed. Hmm. Okay, become disfunctional myself.
+    dispose();
+}
+
+
+void TransferableClipboardNotifier::dispose()
+{
+    ::osl::MutexGuard aGuard( mrMutex );
+
+    Reference< XClipboardListener > xKeepMeAlive( this );
+
+    if ( mxNotifier.is() )
+        mxNotifier->removeClipboardListener( this );
+    mxNotifier.clear();
+
+    mpListener = nullptr;
+}
+
+struct TransferableDataHelper_Impl
+{
+    ::osl::Mutex                    maMutex;
+    rtl::Reference<TransferableClipboardNotifier>  mxClipboardListener;
+
+    TransferableDataHelper_Impl()
+    {
+    }
+};
+
+TransferableDataHelper::TransferableDataHelper()
+    : mxObjDesc(new TransferableObjectDescriptor)
+    , mxImpl(new TransferableDataHelper_Impl)
+{
+}
+
+TransferableDataHelper::TransferableDataHelper(const Reference< css::datatransfer::XTransferable >& rxTransferable)
+    : mxTransfer(rxTransferable)
+    , mxObjDesc(new TransferableObjectDescriptor)
+    , mxImpl(new TransferableDataHelper_Impl)
+{
+    InitFormats();
+}
+
+TransferableDataHelper::TransferableDataHelper(const TransferableDataHelper& rDataHelper)
+    : mxTransfer(rDataHelper.mxTransfer)
+    , mxClipboard(rDataHelper.mxClipboard)
+    , maFormats(rDataHelper.maFormats)
+    , mxObjDesc(new TransferableObjectDescriptor(*rDataHelper.mxObjDesc))
+    , mxImpl(new TransferableDataHelper_Impl)
+{
+}
+
+TransferableDataHelper::TransferableDataHelper(TransferableDataHelper&& rDataHelper) noexcept
+    : mxTransfer(std::move(rDataHelper.mxTransfer))
+    , mxClipboard(std::move(rDataHelper.mxClipboard))
+    , maFormats(std::move(rDataHelper.maFormats))
+    , mxObjDesc(std::move(rDataHelper.mxObjDesc))
+    , mxImpl(new TransferableDataHelper_Impl)
+{
+}
+
+TransferableDataHelper& TransferableDataHelper::operator=( const TransferableDataHelper& rDataHelper )
+{
+    if ( this != &rDataHelper )
+    {
+        ::osl::MutexGuard aGuard(mxImpl->maMutex);
+
+        const bool bWasClipboardListening = mxImpl->mxClipboardListener.is();
+
+        if (bWasClipboardListening)
+            StopClipboardListening();
+
+        mxTransfer = rDataHelper.mxTransfer;
+        maFormats = rDataHelper.maFormats;
+        mxObjDesc.reset(new TransferableObjectDescriptor(*rDataHelper.mxObjDesc));
+        mxClipboard = rDataHelper.mxClipboard;
+
+        if (bWasClipboardListening)
+            StartClipboardListening();
+    }
+
+    return *this;
+}
+
+TransferableDataHelper& TransferableDataHelper::operator=(TransferableDataHelper&& rDataHelper)
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+
+    const bool bWasClipboardListening = mxImpl->mxClipboardListener.is();
+
+    if (bWasClipboardListening)
+        StopClipboardListening();
+
+    mxTransfer = std::move(rDataHelper.mxTransfer);
+    maFormats = std::move(rDataHelper.maFormats);
+    mxObjDesc = std::move(rDataHelper.mxObjDesc);
+    mxClipboard = std::move(rDataHelper.mxClipboard);
+
+    if (bWasClipboardListening)
+        StartClipboardListening();
+
+    return *this;
+}
+
+TransferableDataHelper::~TransferableDataHelper()
+{
+    StopClipboardListening( );
+    {
+        ::osl::MutexGuard aGuard(mxImpl->maMutex);
+        maFormats.clear();
+        mxObjDesc.reset();
+    }
+}
+
+void TransferableDataHelper::FillDataFlavorExVector( const Sequence< DataFlavor >& rDataFlavorSeq,
+                                                     DataFlavorExVector& rDataFlavorExVector )
+{
+    try
+    {
+        Reference< XComponentContext >          xContext( ::comphelper::getProcessComponentContext() );
+        Reference< XMimeContentTypeFactory >    xMimeFact = MimeContentTypeFactory::create( xContext );
+        DataFlavorEx                            aFlavorEx;
+        static const OUStringLiteral                   aCharsetStr( u"charset" );
+
+
+        for (auto const& rFlavor : rDataFlavorSeq)
+        {
+            Reference< XMimeContentType >   xMimeType;
+
+            try
+            {
+                if( !rFlavor.MimeType.isEmpty() )
+                    xMimeType = xMimeFact->createMimeContentType( rFlavor.MimeType );
+            }
+            catch( const css::uno::Exception& )
+            {
+            }
+
+            aFlavorEx.MimeType = rFlavor.MimeType;
+            aFlavorEx.HumanPresentableName = rFlavor.HumanPresentableName;
+            aFlavorEx.DataType = rFlavor.DataType;
+            aFlavorEx.mnSotId = SotExchange::RegisterFormat( rFlavor );
+
+            rDataFlavorExVector.push_back( aFlavorEx );
+
+            // add additional formats for special mime types
+            if(SotClipboardFormatId::BMP == aFlavorEx.mnSotId || SotClipboardFormatId::PNG == aFlavorEx.mnSotId || SotClipboardFormatId::JPEG == aFlavorEx.mnSotId)
+            {
+                if( SotExchange::GetFormatDataFlavor( SotClipboardFormatId::BITMAP, aFlavorEx ) )
+                {
+                    aFlavorEx.mnSotId = SotClipboardFormatId::BITMAP;
+                    rDataFlavorExVector.push_back( aFlavorEx );
+                }
+            }
+            else if( SotClipboardFormatId::WMF == aFlavorEx.mnSotId || SotClipboardFormatId::EMF == aFlavorEx.mnSotId )
+            {
+                if( SotExchange::GetFormatDataFlavor( SotClipboardFormatId::GDIMETAFILE, aFlavorEx ) )
+                {
+                    aFlavorEx.mnSotId = SotClipboardFormatId::GDIMETAFILE;
+                    rDataFlavorExVector.push_back( aFlavorEx );
+                }
+            }
+            else if ( SotClipboardFormatId::HTML_SIMPLE == aFlavorEx.mnSotId  )
+            {
+                // #104735# HTML_SIMPLE may also be inserted without comments
+                aFlavorEx.mnSotId = SotClipboardFormatId::HTML_NO_COMMENT;
+                rDataFlavorExVector.push_back( aFlavorEx );
+            }
+            else if( xMimeType.is() && xMimeType->getFullMediaType().equalsIgnoreAsciiCase( "text/plain" ) )
+            {
+                // add, if it is a UTF-8 byte buffer
+                if( xMimeType->hasParameter( aCharsetStr ) )
+                {
+                    if( xMimeType->getParameterValue( aCharsetStr ).equalsIgnoreAsciiCase( "unicode" ) ||
+                        xMimeType->getParameterValue( aCharsetStr ).equalsIgnoreAsciiCase( "utf-16" ) )
+                    {
+                        rDataFlavorExVector[ rDataFlavorExVector.size() - 1 ].mnSotId = SotClipboardFormatId::STRING;
+
+                    }
+                }
+            }
+            else if( xMimeType.is() && xMimeType->getFullMediaType().equalsIgnoreAsciiCase( "text/rtf" ) )
+            {
+                rDataFlavorExVector[ rDataFlavorExVector.size() - 1 ].mnSotId = SotClipboardFormatId::RTF;
+            }
+            else if( xMimeType.is() && xMimeType->getFullMediaType().equalsIgnoreAsciiCase( "text/richtext" ) )
+            {
+                rDataFlavorExVector[ rDataFlavorExVector.size() - 1 ].mnSotId = SotClipboardFormatId::RICHTEXT;
+            }
+            else if( xMimeType.is() && xMimeType->getFullMediaType().equalsIgnoreAsciiCase( "text/html" ) )
+
+            {
+                rDataFlavorExVector[ rDataFlavorExVector.size() - 1 ].mnSotId = SotClipboardFormatId::HTML;
+            }
+            else if( xMimeType.is() && xMimeType->getFullMediaType().equalsIgnoreAsciiCase( "text/uri-list" ) )
+            {
+                rDataFlavorExVector[ rDataFlavorExVector.size() - 1 ].mnSotId = SotClipboardFormatId::FILE_LIST;
+            }
+            else if( xMimeType.is() && xMimeType->getFullMediaType().equalsIgnoreAsciiCase( "application/x-openoffice-objectdescriptor-xml" ) )
+            {
+                rDataFlavorExVector[ rDataFlavorExVector.size() - 1 ].mnSotId = SotClipboardFormatId::OBJECTDESCRIPTOR;
+            }
+        }
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+}
+
+void TransferableDataHelper::InitFormats()
+{
+    SolarMutexGuard aSolarGuard;
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+
+    maFormats.clear();
+    mxObjDesc.reset(new TransferableObjectDescriptor);
+
+    if( !mxTransfer.is() )
+        return;
+
+    TransferableDataHelper::FillDataFlavorExVector(mxTransfer->getTransferDataFlavors(), maFormats);
+
+    for (auto const& format : maFormats)
+    {
+        if( SotClipboardFormatId::OBJECTDESCRIPTOR == format.mnSotId )
+        {
+            ImplSetParameterString(*mxObjDesc, format);
+            break;
+        }
+    }
+}
+
+
+bool TransferableDataHelper::HasFormat( SotClipboardFormatId nFormat ) const
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+    return std::any_of(maFormats.begin(), maFormats.end(),
+              [&](const DataFlavorEx& data) { return data.mnSotId == nFormat; });
+}
+
+bool TransferableDataHelper::HasFormat( const DataFlavor& rFlavor ) const
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+    for (auto const& format : maFormats)
+    {
+        if( TransferableDataHelper::IsEqual( rFlavor, format ) )
+            return true;
+    }
+
+    return false;
+}
+
+sal_uInt32 TransferableDataHelper::GetFormatCount() const
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+    return maFormats.size();
+}
+
+SotClipboardFormatId TransferableDataHelper::GetFormat( sal_uInt32 nFormat ) const
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+    DBG_ASSERT(nFormat < maFormats.size(), "TransferableDataHelper::GetFormat: invalid format index");
+    return( ( nFormat < maFormats.size() ) ? maFormats[ nFormat ].mnSotId : SotClipboardFormatId::NONE );
+}
+
+DataFlavor TransferableDataHelper::GetFormatDataFlavor( sal_uInt32 nFormat ) const
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+    DBG_ASSERT(nFormat < maFormats.size(), "TransferableDataHelper::GetFormat: invalid format index");
+
+    DataFlavor aRet;
+
+    if (nFormat < maFormats.size())
+        aRet = maFormats[nFormat];
+
+    return aRet;
+}
+
+
+Reference< XTransferable > TransferableDataHelper::GetXTransferable() const
+{
+    Reference< XTransferable > xRet;
+
+    if( mxTransfer.is() )
+    {
+        try
+        {
+            xRet = mxTransfer;
+
+            // do a dummy call to check, if this interface is valid (nasty)
+            xRet->getTransferDataFlavors();
+
+        }
+        catch( const css::uno::Exception& )
+        {
+            xRet.clear();
+        }
+    }
+
+    return xRet;
+}
+
+
+Any TransferableDataHelper::GetAny( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const
+{
+    Any aReturn;
+
+    DataFlavor aFlavor;
+    if ( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) )
+        aReturn = GetAny(aFlavor, rDestDoc);
+
+    return aReturn;
+}
+
+Any TransferableDataHelper::GetAny( const DataFlavor& rFlavor, const OUString& rDestDoc ) const
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+    Any aRet;
+
+    try
+    {
+        if( mxTransfer.is() )
+        {
+            const SotClipboardFormatId         nRequestFormat = SotExchange::GetFormat( rFlavor );
+
+            Reference<css::datatransfer::XTransferable2> xTransfer2(mxTransfer, UNO_QUERY);
+
+            if( nRequestFormat != SotClipboardFormatId::NONE )
+            {
+                // try to get alien format first
+                for (auto const& format : maFormats)
+                {
+                    if( ( nRequestFormat == format.mnSotId ) && !rFlavor.MimeType.equalsIgnoreAsciiCase( format.MimeType ) )
+                    {
+// tdf#133365: only release solar mutex on Windows
+#ifdef _WIN32
+                        // tdf#133527: first, make sure that we actually hold the mutex
+                        SolarMutexGuard g;
+                        // Our own thread may handle the nested IDataObject::GetData call,
+                        // and try to acquire solar mutex
+                        SolarMutexReleaser r;
+#endif // _WIN32
+
+                        if (xTransfer2.is())
+                            aRet = xTransfer2->getTransferData2(format, rDestDoc);
+                        else
+                            aRet = mxTransfer->getTransferData(format);
+                    }
+
+                    if( aRet.hasValue() )
+                        break;
+                }
+            }
+
+            if( !aRet.hasValue() )
+            {
+// tdf#133365: only release solar mutex on Windows
+#ifdef _WIN32
+                // tdf#133527: first, make sure that we actually hold the mutex
+                SolarMutexGuard g;
+                // Our own thread may handle the nested IDataObject::GetData call,
+                // and try to acquire solar mutex
+                SolarMutexReleaser r;
+#endif // _WIN32
+
+                if (xTransfer2.is())
+                    aRet = xTransfer2->getTransferData2(rFlavor, rDestDoc);
+                else
+                    aRet = mxTransfer->getTransferData(rFlavor);
+            }
+        }
+    }
+    catch( const css::uno::Exception& )
+    {
+    }
+
+    return aRet;
+}
+
+
+bool TransferableDataHelper::GetString( SotClipboardFormatId nFormat, OUString& rStr ) const
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetString( aFlavor, rStr ) );
+}
+
+
+bool TransferableDataHelper::GetString( const DataFlavor& rFlavor, OUString& rStr ) const
+{
+    Any aAny = GetAny(rFlavor, OUString());
+    bool        bRet = false;
+
+    if( aAny.hasValue() )
+    {
+        OUString         aOUString;
+        Sequence< sal_Int8 >    aSeq;
+
+        if( aAny >>= aOUString )
+        {
+            rStr = aOUString;
+            bRet = true;
+        }
+        else if( aAny >>= aSeq )
+        {
+
+            const char* pChars = reinterpret_cast< const char* >( aSeq.getConstArray() );
+            sal_Int32       nLen = aSeq.getLength();
+
+            //JP 10.10.2001: 92930 - don't copy the last zero character into the string.
+            //DVO 2002-05-27: strip _all_ trailing zeros
+            while( nLen && ( 0 == *( pChars + nLen - 1 ) ) )
+                --nLen;
+
+            rStr = OUString( pChars, nLen, osl_getThreadTextEncoding() );
+            bRet = true;
+        }
+    }
+
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetBitmapEx( SotClipboardFormatId nFormat, BitmapEx& rBmpEx ) const
+{
+    if(SotClipboardFormatId::BITMAP == nFormat)
+    {
+        // try to get PNG first
+        DataFlavor aFlavor;
+
+        if(SotExchange::GetFormatDataFlavor(SotClipboardFormatId::PNG, aFlavor))
+        {
+            if(GetBitmapEx(aFlavor, rBmpEx))
+            {
+                return true;
+            }
+        }
+
+        // then JPEG
+        if(SotExchange::GetFormatDataFlavor(SotClipboardFormatId::JPEG, aFlavor))
+        {
+            if(GetBitmapEx(aFlavor, rBmpEx))
+            {
+                return true;
+            }
+        }
+    }
+
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetBitmapEx( aFlavor, rBmpEx ) );
+}
+
+
+bool TransferableDataHelper::GetBitmapEx( const DataFlavor& rFlavor, BitmapEx& rBmpEx ) const
+{
+    tools::SvRef<SotTempStream> xStm;
+    DataFlavor aSubstFlavor;
+    bool bRet(GetSotStorageStream(rFlavor, xStm));
+    bool bSuppressPNG(false); // #122982# If PNG stream not accessed, but BMP one, suppress trying to load PNG
+    bool bSuppressJPEG(false);
+
+    if(!bRet && HasFormat(SotClipboardFormatId::PNG) && SotExchange::GetFormatDataFlavor(SotClipboardFormatId::PNG, aSubstFlavor))
+    {
+        // when no direct success, try if PNG is available
+        bRet = GetSotStorageStream(aSubstFlavor, xStm);
+        bSuppressJPEG = bRet;
+    }
+
+    if(!bRet && HasFormat(SotClipboardFormatId::JPEG) && SotExchange::GetFormatDataFlavor(SotClipboardFormatId::JPEG, aSubstFlavor))
+    {
+        bRet = GetSotStorageStream(aSubstFlavor, xStm);
+        bSuppressPNG = bRet;
+    }
+
+    if(!bRet && HasFormat(SotClipboardFormatId::BMP) && SotExchange::GetFormatDataFlavor(SotClipboardFormatId::BMP, aSubstFlavor))
+    {
+        // when no direct success, try if BMP is available
+        bRet = GetSotStorageStream(aSubstFlavor, xStm);
+        bSuppressPNG = bRet;
+        bSuppressJPEG = bRet;
+    }
+
+    if(bRet)
+    {
+        if(!bSuppressPNG && rFlavor.MimeType.equalsIgnoreAsciiCase("image/png"))
+        {
+            // it's a PNG, import to BitmapEx
+            vcl::PngImageReader aPNGReader(*xStm);
+            rBmpEx = aPNGReader.read();
+        }
+        else if(!bSuppressJPEG && rFlavor.MimeType.equalsIgnoreAsciiCase("image/jpeg"))
+        {
+            // it's a JPEG, import to BitmapEx
+            GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+            Graphic aGraphic;
+            if (rFilter.ImportGraphic(aGraphic, u"", *xStm) == ERRCODE_NONE)
+                rBmpEx = aGraphic.GetBitmapEx();
+        }
+
+        if(rBmpEx.IsEmpty())
+        {
+            Bitmap aBitmap;
+            AlphaMask aMask;
+
+            // explicitly use Bitmap::Read with bFileHeader = sal_True
+            // #i124085# keep DIBV5 for read from clipboard, but should not happen
+            ReadDIBV5(aBitmap, aMask, *xStm);
+
+            if(aMask.GetBitmap().IsEmpty())
+            {
+                rBmpEx = aBitmap;
+            }
+            else
+            {
+                rBmpEx = BitmapEx(aBitmap, aMask);
+            }
+        }
+
+        bRet = (ERRCODE_NONE == xStm->GetError() && !rBmpEx.IsEmpty());
+
+        /* SJ: #110748# At the moment we are having problems with DDB inserted as DIB. The
+           problem is, that some graphics are inserted much too big because the nXPelsPerMeter
+           and nYPelsPerMeter of the bitmap fileheader isn't including the correct value.
+           Due to this reason the following code assumes that bitmaps with a logical size
+           greater than 50 cm aren't having the correct mapmode set.
+
+           The following code should be removed if DDBs and DIBs are supported via clipboard
+           properly.
+        */
+        if(bRet)
+        {
+            const MapMode aMapMode(rBmpEx.GetPrefMapMode());
+
+            if(MapUnit::MapPixel != aMapMode.GetMapUnit())
+            {
+                const Size aSize(OutputDevice::LogicToLogic(rBmpEx.GetPrefSize(), aMapMode, MapMode(MapUnit::Map100thMM)));
+
+                // #i122388# This wrongly corrects in the given case; changing from 5000 100th mm to
+                // the described 50 cm (which is 50000 100th mm)
+                if((aSize.Width() > 50000) || (aSize.Height() > 50000))
+                {
+                    rBmpEx.SetPrefMapMode(MapMode(MapUnit::MapPixel));
+
+                    // #i122388# also adapt size by applying the mew MapMode
+                    const Size aNewSize(o3tl::convert(aSize, o3tl::Length::mm100, o3tl::Length::pt));
+                    rBmpEx.SetPrefSize(aNewSize);
+                }
+            }
+        }
+    }
+
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetGDIMetaFile(SotClipboardFormatId nFormat, GDIMetaFile& rMtf, size_t nMaxActions) const
+{
+    DataFlavor aFlavor;
+    return SotExchange::GetFormatDataFlavor(nFormat, aFlavor) &&
+        GetGDIMetaFile(aFlavor, rMtf) &&
+        (nMaxActions == 0 || rMtf.GetActionSize() < nMaxActions);
+}
+
+
+bool TransferableDataHelper::GetGDIMetaFile( const DataFlavor& rFlavor, GDIMetaFile& rMtf ) const
+{
+    tools::SvRef<SotTempStream> xStm;
+    DataFlavor          aSubstFlavor;
+    bool                bRet = false;
+
+    if( GetSotStorageStream( rFlavor, xStm ) )
+    {
+        SvmReader aReader( *xStm );
+        aReader.Read( rMtf );
+        bRet = ( xStm->GetError() == ERRCODE_NONE );
+    }
+
+    if( !bRet &&
+        HasFormat( SotClipboardFormatId::EMF ) &&
+        SotExchange::GetFormatDataFlavor( SotClipboardFormatId::EMF, aSubstFlavor ) &&
+        GetSotStorageStream( aSubstFlavor, xStm ) )
+    {
+        Graphic aGraphic;
+
+        if( GraphicConverter::Import( *xStm, aGraphic ) == ERRCODE_NONE )
+        {
+            rMtf = aGraphic.GetGDIMetaFile();
+            bRet = true;
+        }
+    }
+
+    if( !bRet &&
+        HasFormat( SotClipboardFormatId::WMF ) &&
+        SotExchange::GetFormatDataFlavor( SotClipboardFormatId::WMF, aSubstFlavor ) &&
+        GetSotStorageStream( aSubstFlavor, xStm ) )
+    {
+        Graphic aGraphic;
+
+        if( GraphicConverter::Import( *xStm, aGraphic ) == ERRCODE_NONE )
+        {
+            rMtf = aGraphic.GetGDIMetaFile();
+            bRet = true;
+        }
+    }
+
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetGraphic( SotClipboardFormatId nFormat, Graphic& rGraphic ) const
+{
+    if(SotClipboardFormatId::BITMAP == nFormat)
+    {
+        // try to get PNG first
+        DataFlavor aFlavor;
+
+        if(SotExchange::GetFormatDataFlavor(SotClipboardFormatId::PNG, aFlavor))
+        {
+            if(GetGraphic(aFlavor, rGraphic))
+            {
+                return true;
+            }
+        }
+    }
+
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetGraphic( aFlavor, rGraphic ) );
+}
+
+
+bool TransferableDataHelper::GetGraphic( const css::datatransfer::DataFlavor& rFlavor, Graphic& rGraphic ) const
+{
+    DataFlavor  aFlavor;
+    bool        bRet = false;
+
+    if(SotExchange::GetFormatDataFlavor(SotClipboardFormatId::PNG, aFlavor) &&
+        TransferableDataHelper::IsEqual(aFlavor, rFlavor))
+    {
+        // try to get PNG first
+        BitmapEx aBmpEx;
+
+        bRet = GetBitmapEx( aFlavor, aBmpEx );
+        if( bRet )
+            rGraphic = aBmpEx;
+    }
+    else if(SotExchange::GetFormatDataFlavor(SotClipboardFormatId::PDF, aFlavor) &&
+            TransferableDataHelper::IsEqual(aFlavor, rFlavor))
+    {
+        Graphic aGraphic;
+        tools::SvRef<SotTempStream> xStm;
+        if (GetSotStorageStream(rFlavor, xStm))
+        {
+            if (GraphicConverter::Import(*xStm, aGraphic) == ERRCODE_NONE)
+            {
+                rGraphic = aGraphic;
+                bRet = true;
+            }
+        }
+    }
+    else if (SotExchange::GetFormatDataFlavor(SotClipboardFormatId::JPEG, aFlavor) && TransferableDataHelper::IsEqual(aFlavor, rFlavor))
+    {
+        BitmapEx aBitmapEx;
+
+        bRet = GetBitmapEx(aFlavor, aBitmapEx);
+        if (bRet)
+            rGraphic = aBitmapEx;
+    }
+    else if(SotExchange::GetFormatDataFlavor( SotClipboardFormatId::BITMAP, aFlavor ) &&
+        TransferableDataHelper::IsEqual( aFlavor, rFlavor ) )
+    {
+        BitmapEx aBmpEx;
+
+        bRet = GetBitmapEx( aFlavor, aBmpEx );
+        if( bRet )
+            rGraphic = aBmpEx;
+    }
+    else if( SotExchange::GetFormatDataFlavor( SotClipboardFormatId::GDIMETAFILE, aFlavor ) &&
+             TransferableDataHelper::IsEqual( aFlavor, rFlavor ) )
+    {
+        GDIMetaFile aMtf;
+
+        bRet = GetGDIMetaFile( aFlavor, aMtf );
+        if( bRet )
+            rGraphic = aMtf;
+    }
+    else
+    {
+        tools::SvRef<SotTempStream> xStm;
+
+        if( GetSotStorageStream( rFlavor, xStm ) )
+        {
+            TypeSerializer aSerializer(*xStm);
+            aSerializer.readGraphic(rGraphic);
+            bRet = ( xStm->GetError() == ERRCODE_NONE );
+        }
+    }
+
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetImageMap( SotClipboardFormatId nFormat, ImageMap& rIMap ) const
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetImageMap( aFlavor, rIMap ) );
+}
+
+
+bool TransferableDataHelper::GetImageMap( const css::datatransfer::DataFlavor& rFlavor, ImageMap& rIMap ) const
+{
+    tools::SvRef<SotTempStream> xStm;
+    bool                bRet = GetSotStorageStream( rFlavor, xStm );
+
+    if( bRet )
+    {
+        rIMap.Read( *xStm );
+        bRet = ( xStm->GetError() == ERRCODE_NONE );
+    }
+
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetTransferableObjectDescriptor( SotClipboardFormatId nFormat, TransferableObjectDescriptor& rDesc )
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetTransferableObjectDescriptor( rDesc ) );
+}
+
+
+bool TransferableDataHelper::GetTransferableObjectDescriptor( TransferableObjectDescriptor& rDesc )
+{
+    rDesc = *mxObjDesc;
+    return true;
+}
+
+
+bool TransferableDataHelper::GetINetBookmark( SotClipboardFormatId nFormat, INetBookmark& rBmk ) const
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetINetBookmark( aFlavor, rBmk ) );
+}
+
+
+bool TransferableDataHelper::GetINetBookmark( const css::datatransfer::DataFlavor& rFlavor, INetBookmark& rBmk ) const
+{
+    if( !HasFormat( rFlavor ))
+        return false;
+
+    bool bRet = false;
+    const SotClipboardFormatId nFormat = SotExchange::GetFormat( rFlavor );
+    switch( nFormat )
+    {
+        case SotClipboardFormatId::SOLK:
+        case SotClipboardFormatId::UNIFORMRESOURCELOCATOR:
+        {
+            OUString aString;
+            if( GetString( rFlavor, aString ) )
+            {
+                if( SotClipboardFormatId::UNIFORMRESOURCELOCATOR == nFormat )
+                {
+                    rBmk = INetBookmark( aString, aString );
+                    bRet = true;
+                }
+                else
+                {
+                    OUString    aURL, aDesc;
+                    sal_Int32   nStart = aString.indexOf( '@' ), nLen = aString.toInt32();
+
+                    if( !nLen && aString[ 0 ] != '0' )
+                    {
+                        SAL_INFO( "svtools", "SOLK: 1. len=0" );
+                    }
+                    if( nStart == -1 || nLen > aString.getLength() - nStart - 3 )
+                    {
+                        SAL_INFO( "svtools", "SOLK: 1. illegal start or wrong len" );
+                    }
+                    aURL = aString.copy( nStart + 1, nLen );
+
+                    aString = aString.replaceAt( 0, nStart + 1 + nLen, u"" );
+                    nStart = aString.indexOf( '@' );
+                    nLen = aString.toInt32();
+
+                    if( !nLen && aString[ 0 ] != '0' )
+                    {
+                        SAL_INFO( "svtools", "SOLK: 2. len=0" );
+                    }
+                    if( nStart == -1 || nLen > aString.getLength() - nStart - 1 )
+                    {
+                        SAL_INFO( "svtools", "SOLK: 2. illegal start or wrong len" );
+                    }
+                    aDesc = aString.copy( nStart+1, nLen );
+
+                    rBmk = INetBookmark( aURL, aDesc );
+                    bRet = true;
+                }
+            }
+        }
+        break;
+
+        case SotClipboardFormatId::NETSCAPE_BOOKMARK:
+        {
+            Sequence<sal_Int8> aSeq = GetSequence(rFlavor, OUString());
+
+            if (2048 == aSeq.getLength())
+            {
+                const char* p1 = reinterpret_cast< const char* >( aSeq.getConstArray() );
+                const char* p2 =  reinterpret_cast< const char* >( aSeq.getConstArray() ) + 1024;
+                rBmk = INetBookmark( OUString( p1, strlen(p1), osl_getThreadTextEncoding() ),
+                                     OUString( p2, strlen(p2), osl_getThreadTextEncoding() ) );
+                bRet = true;
+            }
+        }
+        break;
+
+#ifdef _WIN32
+        case SotClipboardFormatId::FILEGRPDESCRIPTOR:
+        {
+            Sequence<sal_Int8> aSeq = GetSequence(rFlavor, OUString());
+
+            if (aSeq.getLength())
+            {
+                FILEGROUPDESCRIPTORW const * pFDesc = reinterpret_cast<FILEGROUPDESCRIPTORW const *>(aSeq.getConstArray());
+
+                if( pFDesc->cItems )
+                {
+                    OUString aDesc( o3tl::toU(pFDesc->fgd[ 0 ].cFileName) );
+
+                    if( ( aDesc.getLength() > 4 ) && aDesc.endsWithIgnoreAsciiCase(".URL") )
+                    {
+                        std::unique_ptr<SvStream> pStream(::utl::UcbStreamHelper::CreateStream( INetURLObject( aDesc ).GetMainURL( INetURLObject::DecodeMechanism::NONE ),
+                                                                                  StreamMode::STD_READ ));
+
+                        if( !pStream || pStream->GetError() )
+                        {
+                            DataFlavor aFileContentFlavor;
+
+                            aSeq.realloc( 0 );
+                            pStream.reset();
+
+                            if (SotExchange::GetFormatDataFlavor(SotClipboardFormatId::FILECONTENT, aFileContentFlavor))
+                            {
+                                aSeq = GetSequence(aFileContentFlavor, OUString());
+                                if (aSeq.getLength())
+                                    pStream.reset(new SvMemoryStream( const_cast<sal_Int8 *>(aSeq.getConstArray()), aSeq.getLength(), StreamMode::STD_READ ));
+                            }
+                        }
+
+                        if( pStream )
+                        {
+                            OString aLine;
+                            bool bInA = false, bInW = false, bAFound = false;
+
+                            while( pStream->ReadLine( aLine ) )
+                            {
+                                if (aLine.startsWithIgnoreAsciiCase("[InternetShortcut", &aLine))
+                                {
+                                    // May be [InternetShortcut], or [InternetShortcut.A], or
+                                    // [InternetShortcut.W] (the latter has UTF-7-encoded URL)
+                                    bInW = aLine.equalsIgnoreAsciiCase(".W]");
+                                    bInA = !bAFound && !bInW
+                                           && (aLine == "]" || aLine.equalsIgnoreAsciiCase(".A]"));
+                                }
+                                else if (aLine.startsWith("["))
+                                {
+                                    bInA = bInW = false;
+                                }
+                                else if ((bInA || bInW) && aLine.startsWithIgnoreAsciiCase("URL="))
+                                {
+                                    auto eTextEncoding = bInW ? RTL_TEXTENCODING_UTF7
+                                                              : osl_getThreadTextEncoding();
+                                    rBmk = INetBookmark( OStringToOUString(aLine.subView(4), eTextEncoding),
+                                                         aDesc.copy(0, aDesc.getLength() - 4) );
+                                    bRet = true;
+                                    if (bInW)
+                                        break;
+                                    else
+                                        bAFound = true; // Keep looking for "W"
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        break;
+#endif
+        default: break;
+    }
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetINetImage( SotClipboardFormatId nFormat,
+                                                INetImage& rINtImg ) const
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetINetImage( aFlavor, rINtImg ) );
+}
+
+
+bool TransferableDataHelper::GetINetImage(
+        const css::datatransfer::DataFlavor& rFlavor,
+        INetImage& rINtImg ) const
+{
+    tools::SvRef<SotTempStream> xStm;
+    bool bRet = GetSotStorageStream( rFlavor, xStm );
+
+    if( bRet )
+        bRet = rINtImg.Read( *xStm, SotExchange::GetFormat( rFlavor ) );
+    return bRet;
+}
+
+
+bool TransferableDataHelper::GetFileList( SotClipboardFormatId nFormat,
+                                                FileList& rFileList ) const
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetFileList( rFileList ) );
+}
+
+
+bool TransferableDataHelper::GetFileList( FileList& rFileList ) const
+{
+    tools::SvRef<SotTempStream> xStm;
+    bool                bRet = false;
+
+    for( sal_uInt32 i = 0, nFormatCount = GetFormatCount(); ( i < nFormatCount ) && !bRet; ++i )
+    {
+        if( SotClipboardFormatId::FILE_LIST == GetFormat( i ) )
+        {
+            const DataFlavor aFlavor( GetFormatDataFlavor( i ) );
+
+            if( GetSotStorageStream( aFlavor, xStm ) )
+            {
+                if( aFlavor.MimeType.indexOf( "text/uri-list" ) > -1 )
+                {
+                    OStringBuffer aDiskString;
+
+                    while( xStm->ReadLine( aDiskString ) )
+                        if( !aDiskString.isEmpty() && aDiskString[0] != '#' )
+                            rFileList.AppendFile( OStringToOUString(aDiskString, RTL_TEXTENCODING_UTF8) );
+
+                    bRet = true;
+                }
+                else
+                    bRet = ( ReadFileList( *xStm, rFileList ).GetError() == ERRCODE_NONE );
+            }
+        }
+    }
+
+    return bRet;
+}
+
+
+Sequence<sal_Int8> TransferableDataHelper::GetSequence( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const
+{
+    DataFlavor aFlavor;
+    if (!SotExchange::GetFormatDataFlavor(nFormat, aFlavor))
+        return Sequence<sal_Int8>();
+
+    return GetSequence(aFlavor, rDestDoc);
+}
+
+Sequence<sal_Int8> TransferableDataHelper::GetSequence( const DataFlavor& rFlavor, const OUString& rDestDoc ) const
+{
+    const Any aAny = GetAny(rFlavor, rDestDoc);
+    Sequence<sal_Int8> aSeq;
+    if (aAny.hasValue())
+        aAny >>= aSeq;
+
+    return aSeq;
+}
+
+
+bool TransferableDataHelper::GetSotStorageStream( SotClipboardFormatId nFormat, tools::SvRef<SotTempStream>& rxStream ) const
+{
+    DataFlavor aFlavor;
+    return( SotExchange::GetFormatDataFlavor( nFormat, aFlavor ) && GetSotStorageStream( aFlavor, rxStream ) );
+}
+
+
+bool TransferableDataHelper::GetSotStorageStream( const DataFlavor& rFlavor, tools::SvRef<SotTempStream>& rxStream ) const
+{
+    Sequence<sal_Int8> aSeq = GetSequence(rFlavor, OUString());
+
+    if (aSeq.hasElements())
+    {
+        rxStream = new SotTempStream( "" );
+        rxStream->WriteBytes( aSeq.getConstArray(), aSeq.getLength() );
+        rxStream->Seek( 0 );
+    }
+
+    return aSeq.hasElements();
+}
+
+Reference<XInputStream> TransferableDataHelper::GetInputStream( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const
+{
+    DataFlavor aFlavor;
+    if (!SotExchange::GetFormatDataFlavor(nFormat, aFlavor))
+        return Reference<XInputStream>();
+
+    return GetInputStream(aFlavor, rDestDoc);
+}
+
+Reference<XInputStream> TransferableDataHelper::GetInputStream( const DataFlavor& rFlavor, const OUString& rDestDoc ) const
+{
+    Sequence<sal_Int8> aSeq = GetSequence(rFlavor, rDestDoc);
+
+    if (!aSeq.hasElements())
+        return Reference<XInputStream>();
+
+    Reference<XInputStream> xStream(new comphelper::SequenceInputStream(aSeq));
+    return xStream;
+}
+
+void TransferableDataHelper::Rebind( const Reference< XTransferable >& _rxNewContent )
+{
+    mxTransfer = _rxNewContent;
+    InitFormats();
+}
+
+bool TransferableDataHelper::StartClipboardListening( )
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+
+    StopClipboardListening( );
+
+    mxImpl->mxClipboardListener = new TransferableClipboardNotifier(mxClipboard, *this, mxImpl->maMutex);
+
+    return mxImpl->mxClipboardListener->isListening();
+}
+
+void TransferableDataHelper::StopClipboardListening( )
+{
+    ::osl::MutexGuard aGuard(mxImpl->maMutex);
+
+    if (mxImpl->mxClipboardListener.is())
+    {
+        mxImpl->mxClipboardListener->dispose();
+        mxImpl->mxClipboardListener.clear();
+    }
+}
+
+TransferableDataHelper TransferableDataHelper::CreateFromClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard>& rClipboard)
+{
+    TransferableDataHelper  aRet;
+
+    if( rClipboard.is() )
+    {
+        try
+        {
+            Reference< XTransferable > xTransferable( rClipboard->getContents() );
+
+            if( xTransferable.is() )
+            {
+                aRet = TransferableDataHelper( xTransferable );
+                // also copy the clipboard
+                aRet.mxClipboard = rClipboard;
+            }
+        }
+        catch( const css::uno::Exception& )
+        {
+        }
+    }
+
+    return aRet;
+}
+
+TransferableDataHelper TransferableDataHelper::CreateFromSystemClipboard( vcl::Window * pWindow )
+{
+    DBG_ASSERT( pWindow, "Window pointer is NULL" );
+
+    Reference< XClipboard > xClipboard;
+
+    if( pWindow )
+        xClipboard = pWindow->GetClipboard();
+
+    return CreateFromClipboard(xClipboard);
+}
+
+TransferableDataHelper TransferableDataHelper::CreateFromPrimarySelection()
+{
+    Reference< XClipboard > xSelection(GetSystemPrimarySelection());
+    TransferableDataHelper   aRet;
+
+    if( xSelection.is() )
+    {
+           SolarMutexReleaser aReleaser;
+
+           try
+               {
+                   Reference< XTransferable > xTransferable( xSelection->getContents() );
+
+                   if( xTransferable.is() )
+                   {
+                           aRet = TransferableDataHelper( xTransferable );
+                           aRet.mxClipboard = xSelection;
+                   }
+               }
+           catch( const css::uno::Exception& )
+               {
+               }
+    }
+
+    return aRet;
+}
+
+bool TransferableDataHelper::IsEqual( const css::datatransfer::DataFlavor& rInternalFlavor,
+                                      const css::datatransfer::DataFlavor& rRequestFlavor )
+{
+    Reference< XComponentContext >          xContext( ::comphelper::getProcessComponentContext() );
+    bool                                    bRet = false;
+
+    try
+    {
+        Reference< XMimeContentTypeFactory >    xMimeFact = MimeContentTypeFactory::create( xContext );
+
+        Reference< XMimeContentType > xRequestType1( xMimeFact->createMimeContentType( rInternalFlavor.MimeType ) );
+        Reference< XMimeContentType > xRequestType2( xMimeFact->createMimeContentType( rRequestFlavor.MimeType ) );
+
+        if( xRequestType1.is() && xRequestType2.is() )
+        {
+            if( xRequestType1->getFullMediaType().equalsIgnoreAsciiCase( xRequestType2->getFullMediaType() ) )
+            {
+                if( xRequestType1->getFullMediaType().equalsIgnoreAsciiCase( "text/plain" ) )
+                {
+                    // special handling for text/plain media types
+                    static const OUStringLiteral aCharsetString( u"charset" );
+
+                    if( !xRequestType2->hasParameter( aCharsetString ) ||
+                        xRequestType2->getParameterValue( aCharsetString ).equalsIgnoreAsciiCase( "utf-16" ) ||
+                        xRequestType2->getParameterValue( aCharsetString ).equalsIgnoreAsciiCase( "unicode" ) )
+                    {
+                        bRet = true;
+                    }
+                }
+                else if( xRequestType1->getFullMediaType().equalsIgnoreAsciiCase( "application/x-openoffice" ) )
+                {
+                    // special handling for application/x-openoffice media types
+                    static const OUStringLiteral aFormatString( u"windows_formatname" );
+
+                    if( xRequestType1->hasParameter( aFormatString ) &&
+                        xRequestType2->hasParameter( aFormatString ) &&
+                        xRequestType1->getParameterValue( aFormatString ).equalsIgnoreAsciiCase( xRequestType2->getParameterValue( aFormatString ) ) )
+                    {
+                        bRet = true;
+                    }
+                }
+                else
+                    bRet = true;
+            }
+        }
+    }
+    catch( const css::uno::Exception& )
+    {
+        bRet = rInternalFlavor.MimeType.equalsIgnoreAsciiCase( rRequestFlavor.MimeType );
+    }
+
+    return bRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */