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Diffstat (limited to 'oox/source/ole/oleobjecthelper.cxx')
| -rw-r--r-- | oox/source/ole/oleobjecthelper.cxx | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/oox/source/ole/oleobjecthelper.cxx b/oox/source/ole/oleobjecthelper.cxx new file mode 100644 index 0000000000..f99e4a897e --- /dev/null +++ b/oox/source/ole/oleobjecthelper.cxx @@ -0,0 +1,178 @@ +/* -*- 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/ole/oleobjecthelper.hxx> + +#include <com/sun/star/awt/Rectangle.hpp> +#include <com/sun/star/awt/Size.hpp> +#include <com/sun/star/beans/PropertyValue.hpp> +#include <com/sun/star/beans/XPropertySet.hpp> +#include <com/sun/star/container/XNameAccess.hpp> +#include <com/sun/star/document/XEmbeddedObjectResolver.hpp> +#include <com/sun/star/embed/Aspects.hpp> +#include <com/sun/star/frame/XModel.hpp> +#include <com/sun/star/io/XOutputStream.hpp> +#include <com/sun/star/lang/XComponent.hpp> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <osl/diagnose.h> +#include <comphelper/propertyvalue.hxx> +#include <comphelper/sequenceashashmap.hxx> +#include <oox/helper/propertymap.hxx> +#include <oox/token/properties.hxx> +#include <utility> + +namespace oox::ole { + +using namespace ::com::sun::star; +using namespace ::com::sun::star::container; +using namespace ::com::sun::star::embed; +using namespace ::com::sun::star::io; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::uno; + +OleObjectInfo::OleObjectInfo() : + mbLinked( false ), + mbShowAsIcon( false ), + mbAutoUpdate( false ), + mbHasPicture( false ) +{ +} + +const char g_aEmbeddedObjScheme[] = "vnd.sun.star.EmbeddedObject:"; + +OleObjectHelper::OleObjectHelper( + const Reference< XMultiServiceFactory >& rxModelFactory, + uno::Reference<frame::XModel> xModel) + : m_xModel(std::move(xModel)) + , mnObjectId( 100 ) +{ + assert(m_xModel.is()); + if( rxModelFactory.is() ) try + { + mxResolver.set( rxModelFactory->createInstance( "com.sun.star.document.ImportEmbeddedObjectResolver" ), UNO_QUERY ); + } + catch(const Exception& ) + { + } +} + +OleObjectHelper::~OleObjectHelper() +{ + try + { + Reference< XComponent > xResolverComp( mxResolver, UNO_QUERY_THROW ); + xResolverComp->dispose(); + } + catch(const Exception& ) + { + } +} + +// TODO: this is probably a sub-optimal approach: ideally the media type +// of the stream from [Content_Types].xml should be stored somewhere for this +// purpose, but currently the media type of all OLE streams in the storage is +// just "application/vnd.sun.star.oleobject" +void SaveInteropProperties(uno::Reference<frame::XModel> const& xModel, + OUString const& rObjectName, OUString const*const pOldObjectName, + OUString const& rProgId) +{ + static constexpr OUString sEmbeddingsPropName = u"EmbeddedObjects"_ustr; + + // get interop grab bag from document + uno::Reference<beans::XPropertySet> const xDocProps(xModel, uno::UNO_QUERY); + comphelper::SequenceAsHashMap aGrabBag(xDocProps->getPropertyValue("InteropGrabBag")); + + // get EmbeddedObjects property inside grab bag + comphelper::SequenceAsHashMap objectsList; + auto grabIt = aGrabBag.find(sEmbeddingsPropName); + if (grabIt != aGrabBag.end()) + objectsList << grabIt->second; + + uno::Sequence< beans::PropertyValue > aGrabBagAttribute{ comphelper::makePropertyValue("ProgID", + rProgId) }; + + // If we got an "old name", erase that first. + if (pOldObjectName) + { + comphelper::SequenceAsHashMap::iterator it = objectsList.find(*pOldObjectName); + if (it != objectsList.end()) + objectsList.erase(it); + } + + objectsList[rObjectName] <<= aGrabBagAttribute; + + // put objects list back into the grab bag + aGrabBag[sEmbeddingsPropName] <<= objectsList.getAsConstPropertyValueList(); + + // put grab bag back into the document + xDocProps->setPropertyValue("InteropGrabBag", uno::Any(aGrabBag.getAsConstPropertyValueList())); +} + +bool OleObjectHelper::importOleObject( PropertyMap& rPropMap, const OleObjectInfo& rOleObject, const awt::Size& rObjSize ) +{ + bool bRet = false; + + if( rOleObject.mbLinked ) + { + // linked OLE object - set target URL + if( !rOleObject.maTargetLink.isEmpty() ) + { + rPropMap.setProperty( PROP_LinkURL, rOleObject.maTargetLink); + bRet = true; + } + } + else + { + // embedded OLE object - import the embedded data + if( rOleObject.maEmbeddedData.hasElements() && mxResolver.is() ) try + { + OUString aObjectId = "Obj" + OUString::number( mnObjectId++ ); + + Reference< XNameAccess > xResolverNA( mxResolver, UNO_QUERY_THROW ); + Reference< XOutputStream > xOutStrm( xResolverNA->getByName( aObjectId ), UNO_QUERY_THROW ); + xOutStrm->writeBytes( rOleObject.maEmbeddedData ); + xOutStrm->closeOutput(); + + SaveInteropProperties(m_xModel, aObjectId, nullptr, rOleObject.maProgId); + + OUString aUrl = mxResolver->resolveEmbeddedObjectURL( aObjectId ); + OSL_ENSURE( aUrl.match( g_aEmbeddedObjScheme ), "OleObjectHelper::importOleObject - unexpected URL scheme" ); + OUString aPersistName = aUrl.copy( strlen(g_aEmbeddedObjScheme) ); + if( !aPersistName.isEmpty() ) + { + rPropMap.setProperty( PROP_PersistName, aPersistName); + bRet = true; + } + } + catch(const Exception& ) + { + } + } + + if( bRet ) + { + rPropMap.setProperty( PROP_Aspect, (rOleObject.mbShowAsIcon ? Aspects::MSOLE_ICON : Aspects::MSOLE_CONTENT)); + rPropMap.setProperty( PROP_VisualArea, awt::Rectangle( 0, 0, rObjSize.Width, rObjSize.Height )); + } + return bRet; +} + +} // namespace oox::ole + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |