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/* -*- 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 <com/sun/star/embed/XEmbeddedObject.hpp>
#include <com/sun/star/embed/XEmbedPersist.hpp>
#include <com/sun/star/embed/NoVisualAreaSizeException.hpp>
#include <com/sun/star/datatransfer/XTransferable.hpp>
#include <com/sun/star/embed/Aspects.hpp>
#include <osl/diagnose.h>
#include <sot/exchange.hxx>
#include <svtools/embedtransfer.hxx>
#include <tools/mapunit.hxx>
#include <vcl/outdev.hxx>
#include <vcl/filter/SvmWriter.hxx>
#include <vcl/gdimtf.hxx>
#include <comphelper/fileformat.h>
#include <comphelper/propertysequence.hxx>
#include <comphelper/storagehelper.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <unotools/streamwrap.hxx>
#include <unotools/tempfile.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <svtools/embedhlp.hxx>
using namespace ::com::sun::star;
SvEmbedTransferHelper::SvEmbedTransferHelper( const uno::Reference< embed::XEmbeddedObject >& xObj,
const Graphic* pGraphic,
sal_Int64 nAspect )
: m_xObj( xObj )
, m_nAspect( nAspect )
{
if (pGraphic)
m_oGraphic.emplace(*pGraphic);
if( xObj.is() )
{
TransferableObjectDescriptor aObjDesc;
FillTransferableObjectDescriptor( aObjDesc, m_xObj, nullptr, m_nAspect );
PrepareOLE( aObjDesc );
}
}
SvEmbedTransferHelper::~SvEmbedTransferHelper()
{
}
void SvEmbedTransferHelper::SetParentShellID( const OUString& rShellID )
{
maParentShellID = rShellID;
}
void SvEmbedTransferHelper::AddSupportedFormats()
{
AddFormat( SotClipboardFormatId::EMBED_SOURCE );
AddFormat( SotClipboardFormatId::OBJECTDESCRIPTOR );
AddFormat( SotClipboardFormatId::GDIMETAFILE );
AddFormat( SotClipboardFormatId::BITMAP );
}
bool SvEmbedTransferHelper::GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc )
{
bool bRet = false;
if( m_xObj.is() )
{
try
{
SotClipboardFormatId nFormat = SotExchange::GetFormat( rFlavor );
if( HasFormat( nFormat ) )
{
if( nFormat == SotClipboardFormatId::OBJECTDESCRIPTOR )
{
TransferableObjectDescriptor aDesc;
FillTransferableObjectDescriptor( aDesc, m_xObj, m_oGraphic ? &*m_oGraphic : nullptr, m_nAspect );
bRet = SetTransferableObjectDescriptor( aDesc );
}
else if( nFormat == SotClipboardFormatId::EMBED_SOURCE )
{
try
{
// TODO/LATER: Probably the graphic should be copied here as well
// currently it is handled by the applications
utl::TempFileFast aTmp;
uno::Reference < embed::XEmbedPersist > xPers( m_xObj, uno::UNO_QUERY );
if ( xPers.is() )
{
uno::Reference < embed::XStorage > xStg = comphelper::OStorageHelper::GetTemporaryStorage();
OUString aName( "Dummy" );
SvStream* pStream = nullptr;
bool bDeleteStream = false;
uno::Sequence < beans::PropertyValue > aEmpty;
uno::Sequence<beans::PropertyValue> aObjArgs( comphelper::InitPropertySequence({
{ "SourceShellID", uno::Any(maParentShellID) },
{ "DestinationShellID", uno::Any(rDestDoc) }
}));
xPers->storeToEntry(xStg, aName, aEmpty, aObjArgs);
if ( xStg->isStreamElement( aName ) )
{
uno::Reference < io::XStream > xStm = xStg->cloneStreamElement( aName );
pStream = utl::UcbStreamHelper::CreateStream( xStm ).release();
bDeleteStream = true;
}
else
{
pStream = aTmp.GetStream( StreamMode::STD_READWRITE );
uno::Reference < embed::XStorage > xStor = comphelper::OStorageHelper::GetStorageFromStream( new utl::OStreamWrapper( *pStream ) );
xStg->openStorageElement( aName, embed::ElementModes::READ )->copyToStorage( xStor );
}
const sal_uInt32 nLen = pStream->TellEnd();
css::uno::Sequence< sal_Int8 > aSeq( nLen );
pStream->Seek( STREAM_SEEK_TO_BEGIN );
pStream->ReadBytes(aSeq.getArray(), nLen);
if ( bDeleteStream )
delete pStream;
bRet = aSeq.hasElements();
if( bRet )
{
SetAny( uno::Any(aSeq) );
}
}
else
{
//TODO/LATER: how to handle objects without persistence?!
}
}
catch ( uno::Exception& )
{
}
}
else if ( nFormat == SotClipboardFormatId::GDIMETAFILE && m_oGraphic )
{
SvMemoryStream aMemStm( 65535, 65535 );
aMemStm.SetVersion( SOFFICE_FILEFORMAT_CURRENT );
const GDIMetaFile& aMetaFile = m_oGraphic->GetGDIMetaFile();
SvmWriter aWriter( aMemStm );
aWriter.Write( aMetaFile );
uno::Any aAny;
aAny <<= uno::Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ),
aMemStm.TellEnd() );
SetAny( aAny );
bRet = true;
}
else if ( ( nFormat == SotClipboardFormatId::BITMAP || nFormat == SotClipboardFormatId::PNG ) && m_oGraphic )
{
bRet = SetBitmapEx( m_oGraphic->GetBitmapEx(), rFlavor );
}
else if ( m_xObj.is() && ::svt::EmbeddedObjectRef::TryRunningState( m_xObj ) )
{
uno::Reference< datatransfer::XTransferable > xTransferable( m_xObj->getComponent(), uno::UNO_QUERY );
if ( xTransferable.is() )
{
uno::Any aAny = xTransferable->getTransferData( rFlavor );
SetAny( aAny );
bRet = true;
}
}
}
}
catch( uno::Exception& )
{
// Error handling?
}
}
return bRet;
}
void SvEmbedTransferHelper::ObjectReleased()
{
m_xObj.clear();
}
void SvEmbedTransferHelper::FillTransferableObjectDescriptor( TransferableObjectDescriptor& rDesc,
const css::uno::Reference< css::embed::XEmbeddedObject >& xObj,
const Graphic* pGraphic,
sal_Int64 nAspect )
{
//TODO/LATER: need TypeName to fill it into the Descriptor (will be shown in listbox)
css::datatransfer::DataFlavor aFlavor;
SotExchange::GetFormatDataFlavor( SotClipboardFormatId::OBJECTDESCRIPTOR, aFlavor );
rDesc.maClassName = SvGlobalName( xObj->getClassID() );
rDesc.maTypeName = aFlavor.HumanPresentableName;
//TODO/LATER: the aspect size in the descriptor is wrong, unfortunately the stream
// representation of the descriptor allows only 4 bytes for the aspect
// so for internal transport something different should be found
rDesc.mnViewAspect = sal::static_int_cast<sal_uInt16>( nAspect );
Size aSize;
MapMode aMapMode( MapUnit::Map100thMM );
if ( nAspect == embed::Aspects::MSOLE_ICON )
{
if ( pGraphic )
{
aMapMode = pGraphic->GetPrefMapMode();
aSize = pGraphic->GetPrefSize();
}
else
aSize = Size( 2500, 2500 );
}
else
{
try
{
awt::Size aSz = xObj->getVisualAreaSize( rDesc.mnViewAspect );
aSize = Size( aSz.Width, aSz.Height );
}
catch( embed::NoVisualAreaSizeException& )
{
OSL_FAIL( "Can not get visual area size!" );
aSize = Size( 5000, 5000 );
}
// TODO/LEAN: getMapUnit can switch object to running state
aMapMode = MapMode( VCLUnoHelper::UnoEmbed2VCLMapUnit( xObj->getMapUnit( rDesc.mnViewAspect ) ) );
}
rDesc.maSize = OutputDevice::LogicToLogic( aSize, aMapMode, MapMode( MapUnit::Map100thMM ) );
rDesc.maDragStartPos = Point();
rDesc.maDisplayName.clear();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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