54a97eb9dd
Change-Id: I9ddb786eb88213c53cf53067ced6899ca40ac6e8 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137000 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
522 lines
24 KiB
C++
522 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_VCL_TRANSFER_HXX
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#define INCLUDED_VCL_TRANSFER_HXX
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#include <vcl/dllapi.h>
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#include <tools/globname.hxx>
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#include <tools/gen.hxx>
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#include <tools/solar.h>
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#include <sot/formats.hxx>
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#include <sot/exchange.hxx>
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#include <cppuhelper/implbase.hxx>
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#include <com/sun/star/frame/XTerminateListener.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/lang/XUnoTunnel.hpp>
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#include <com/sun/star/datatransfer/XTransferable2.hpp>
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#include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
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#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
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#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
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#include <com/sun/star/datatransfer/dnd/XDragGestureListener.hpp>
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#include <com/sun/star/datatransfer/dnd/DropTargetDragEvent.hpp>
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#include <com/sun/star/datatransfer/dnd/DropTargetDropEvent.hpp>
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#include <com/sun/star/datatransfer/dnd/XDragSourceListener.hpp>
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#include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
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#include <com/sun/star/embed/Aspects.hpp>
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#include <memory>
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#include <mutex>
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#include <utility>
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namespace com::sun::star::datatransfer::dnd { class XDragGestureRecognizer; }
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namespace com::sun::star::io { class XInputStream; }
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namespace com::sun::star::datatransfer::dnd { class XDropTarget; }
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namespace tools { template <typename T> class SvRef; }
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template <typename Arg, typename Ret> class Link;
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class BitmapEx;
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class GDIMetaFile;
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class Graphic;
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class ImageMap;
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class INetBookmark;
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class INetImage;
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class FileList;
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class SotStorageStream;
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class SotTempStream;
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namespace vcl { class Window; }
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// Drag&Drop defines
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#define DND_ACTION_NONE css::datatransfer::dnd::DNDConstants::ACTION_NONE
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#define DND_ACTION_COPY css::datatransfer::dnd::DNDConstants::ACTION_COPY
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#define DND_ACTION_MOVE css::datatransfer::dnd::DNDConstants::ACTION_MOVE
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#define DND_ACTION_COPYMOVE css::datatransfer::dnd::DNDConstants::ACTION_COPY_OR_MOVE
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#define DND_ACTION_LINK css::datatransfer::dnd::DNDConstants::ACTION_LINK
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#define DND_POINTER_NONE 0
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#define DND_IMAGE_NONE 0
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struct TransferableObjectDescriptor
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{
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SvGlobalName maClassName;
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sal_uInt16 mnViewAspect;
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Point maDragStartPos;
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Size maSize;
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OUString maTypeName;
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OUString maDisplayName;
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TransferableObjectDescriptor()
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: mnViewAspect(css::embed::Aspects::MSOLE_CONTENT)
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{}
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VCL_DLLPUBLIC friend SvStream& WriteTransferableObjectDescriptor( SvStream& rOStm, const TransferableObjectDescriptor& rObjDesc );
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};
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struct AcceptDropEvent
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{
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Point maPosPixel;
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const css::datatransfer::dnd::DropTargetDragEvent maDragEvent;
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sal_Int8 mnAction;
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bool mbLeaving;
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bool mbDefault;
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AcceptDropEvent() :
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mnAction( DND_ACTION_NONE ),
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mbLeaving( false ),
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mbDefault( false ) {}
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AcceptDropEvent( sal_Int8 nAction,
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const Point& rPosPixel,
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css::datatransfer::dnd::DropTargetDragEvent aDragEvent ) :
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maPosPixel( rPosPixel ),
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maDragEvent(std::move( aDragEvent )),
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mnAction( nAction ),
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mbLeaving( false ),
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mbDefault( false ) {}
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};
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struct ExecuteDropEvent
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{
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Point maPosPixel;
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const css::datatransfer::dnd::DropTargetDropEvent maDropEvent;
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sal_Int8 mnAction;
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bool mbDefault;
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ExecuteDropEvent( sal_Int8 nAction,
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const Point& rPosPixel,
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css::datatransfer::dnd::DropTargetDropEvent aDropEvent ) :
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maPosPixel( rPosPixel ),
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maDropEvent(std::move( aDropEvent )),
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mnAction( nAction ),
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mbDefault( false ) {}
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};
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class VCL_DLLPUBLIC TransferableHelper : public cppu::WeakImplHelper< css::datatransfer::XTransferable2,
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css::datatransfer::clipboard::XClipboardOwner,
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css::datatransfer::dnd::XDragSourceListener,
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css::lang::XUnoTunnel >
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{
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private:
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// nested class to implement the XTerminateListener interface
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class VCL_DLLPRIVATE TerminateListener final : public cppu::WeakImplHelper< css::frame::XTerminateListener, css::lang::XServiceInfo >
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{
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private:
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TransferableHelper& mrParent;
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private:
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// XEventListener
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virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
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// XTerminateListener
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virtual void SAL_CALL queryTermination( const css::lang::EventObject& aEvent ) override;
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virtual void SAL_CALL notifyTermination( const css::lang::EventObject& aEvent ) override;
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// XServiceInfo
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virtual OUString SAL_CALL getImplementationName() override;
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virtual sal_Bool SAL_CALL supportsService( const OUString& sServiceName ) override;
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virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
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public:
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TerminateListener( TransferableHelper& rDropTargetHelper );
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virtual ~TerminateListener() override;
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};
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friend class TransferableHelper::TerminateListener;
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private:
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css::uno::Any maAny;
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OUString maLastFormat;
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mutable css::uno::Reference< css::datatransfer::clipboard::XClipboard > mxClipboard;
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css::uno::Reference< css::frame::XTerminateListener > mxTerminateListener;
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DataFlavorExVector maFormats;
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std::unique_ptr<TransferableObjectDescriptor> mxObjDesc;
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protected:
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~TransferableHelper();
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const css::uno::Reference< css::datatransfer::clipboard::XClipboard >&
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getOwnClipboard() const { return mxClipboard; }
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public:
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// XTransferable
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virtual css::uno::Any SAL_CALL getTransferData( const css::datatransfer::DataFlavor& rFlavor ) override;
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virtual css::uno::Sequence< css::datatransfer::DataFlavor > SAL_CALL getTransferDataFlavors() override;
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virtual sal_Bool SAL_CALL isDataFlavorSupported( const css::datatransfer::DataFlavor& rFlavor ) override;
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// Transferable2
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virtual css::uno::Any SAL_CALL getTransferData2(
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const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override;
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virtual sal_Bool SAL_CALL isComplex() override;
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private:
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// XEventListener
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virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
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// XDragSourceListener
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virtual void SAL_CALL dragDropEnd( const css::datatransfer::dnd::DragSourceDropEvent& dsde ) override;
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virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
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virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DragSourceEvent& dse ) override;
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virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
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virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
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// XClipboardOwner
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virtual void SAL_CALL lostOwnership( const css::uno::Reference< css::datatransfer::clipboard::XClipboard >& xClipboard, const css::uno::Reference< css::datatransfer::XTransferable >& xTrans ) override;
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protected:
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// derivees need to access lostOwnership in case hey override it
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// on windows, changing the access rights to a method gives unresolved externals, so we introduce
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// this impl-method here 'til the next incompatible update
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void implCallOwnLostOwnership(
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const css::uno::Reference< css::datatransfer::clipboard::XClipboard >& _rxClipboard,
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const css::uno::Reference< css::datatransfer::XTransferable >& _rxTrans
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)
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{
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TransferableHelper::lostOwnership( _rxClipboard, _rxTrans );
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}
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private:
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VCL_DLLPRIVATE void ImplFlush();
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protected:
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void AddFormat( SotClipboardFormatId nFormat );
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void AddFormat( const css::datatransfer::DataFlavor& rFlavor );
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void RemoveFormat( SotClipboardFormatId nFormat );
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void RemoveFormat( const css::datatransfer::DataFlavor& rFlavor );
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bool HasFormat( SotClipboardFormatId nFormat );
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void ClearFormats();
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bool SetAny( const css::uno::Any& rAny );
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bool SetString( const OUString& rString );
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bool SetBitmapEx( const BitmapEx& rBitmap, const css::datatransfer::DataFlavor& rFlavor );
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bool SetGDIMetaFile( const GDIMetaFile& rMtf );
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bool SetGraphic( const Graphic& rGraphic );
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bool SetImageMap( const ImageMap& rIMap );
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bool SetTransferableObjectDescriptor( const TransferableObjectDescriptor& rDesc );
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bool SetINetBookmark( const INetBookmark& rBmk, const css::datatransfer::DataFlavor& rFlavor );
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bool SetINetImage( const INetImage& rINtImg, const css::datatransfer::DataFlavor& rFlavor );
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bool SetObject( void* pUserObject, sal_uInt32 nUserObjectId, const css::datatransfer::DataFlavor& rFlavor );
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protected:
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virtual void AddSupportedFormats() = 0;
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virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) = 0;
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virtual bool WriteObject( tools::SvRef<SotTempStream>& rxOStm, void* pUserObject, sal_uInt32 nUserObjectId, const css::datatransfer::DataFlavor& rFlavor );
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virtual void DragFinished( sal_Int8 nDropAction );
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virtual void ObjectReleased();
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void CopyToSelection(const css::uno::Reference<css::datatransfer::clipboard::XClipboard> &rClipboard) const;
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public:
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void PrepareOLE( const TransferableObjectDescriptor& rObjDesc );
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void CopyToClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard> &rClipboard) const;
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// convenience versions of the above which extract the XClipboard from the pWindow
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void CopyToClipboard( vcl::Window *pWindow ) const;
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void CopyToPrimarySelection() const;
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void StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions );
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static void ClearPrimarySelection();
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static const css::uno::Sequence< sal_Int8 >& getUnoTunnelId();
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public:
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virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& rId ) override;
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};
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struct TransferableDataHelper_Impl;
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class VCL_DLLPUBLIC TransferableDataHelper final
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{
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friend class DropTargetHelper;
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css::uno::Reference< css::datatransfer::XTransferable > mxTransfer;
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css::uno::Reference< css::datatransfer::clipboard::XClipboard > mxClipboard;
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DataFlavorExVector maFormats;
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std::unique_ptr<TransferableObjectDescriptor> mxObjDesc;
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std::unique_ptr<TransferableDataHelper_Impl> mxImpl;
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void InitFormats();
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public:
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static void FillDataFlavorExVector( const css::uno::Sequence< css::datatransfer::DataFlavor >& rDataFlavorSeq,
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DataFlavorExVector& rDataFlavorExVector );
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TransferableDataHelper();
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TransferableDataHelper( const TransferableDataHelper& rDataHelper );
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TransferableDataHelper( TransferableDataHelper&& rDataHelper ) noexcept;
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TransferableDataHelper( const css::uno::Reference< css::datatransfer::XTransferable >& rxTransferable );
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~TransferableDataHelper();
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TransferableDataHelper& operator=( const TransferableDataHelper& rDataHelper );
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TransferableDataHelper& operator=( TransferableDataHelper&& rDataHelper );
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const css::uno::Reference< css::datatransfer::XTransferable >& GetTransferable() const { return mxTransfer; }
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css::uno::Reference< css::datatransfer::XTransferable > GetXTransferable() const;
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bool HasFormat( SotClipboardFormatId nFormat ) const;
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bool HasFormat( const css::datatransfer::DataFlavor& rFlavor ) const;
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sal_uInt32 GetFormatCount() const;
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SotClipboardFormatId GetFormat( sal_uInt32 nFormat ) const;
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css::datatransfer::DataFlavor GetFormatDataFlavor( sal_uInt32 nFormat ) const;
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const DataFlavorExVector& GetDataFlavorExVector() const {return maFormats; }
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bool StartClipboardListening( );
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void StopClipboardListening( );
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void Rebind( const css::uno::Reference< css::datatransfer::XTransferable >& _rxNewData );
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css::uno::Any GetAny( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const;
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css::uno::Any GetAny( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) const;
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bool GetString( SotClipboardFormatId nFormat, OUString& rStr ) const;
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bool GetString( const css::datatransfer::DataFlavor& rFlavor, OUString& rStr ) const;
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bool GetBitmapEx( SotClipboardFormatId nFormat, BitmapEx& rBmp ) const;
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bool GetBitmapEx( const css::datatransfer::DataFlavor& rFlavor, BitmapEx& rBmp ) const;
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/** Return as GDI metafile.
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@param nMaxAction Allows you to limit the amount of actions; defaults to 0 which means no limit.
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When you eg. Ctrl+a in Excel, you can get the entire sheet as
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metafile, with over 3 million (!) actions; which is just too large for
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any reasonable handling - and you need to set a limit.
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*/
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bool GetGDIMetaFile( SotClipboardFormatId nFormat, GDIMetaFile& rMtf, size_t nMaxActions = 0 ) const;
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bool GetGDIMetaFile( const css::datatransfer::DataFlavor& rFlavor, GDIMetaFile& rMtf ) const;
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bool GetGraphic( SotClipboardFormatId nFormat, Graphic& rGraphic ) const;
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bool GetGraphic( const css::datatransfer::DataFlavor& rFlavor, Graphic& rGraphic ) const;
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bool GetImageMap( SotClipboardFormatId nFormat, ImageMap& rIMap ) const;
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bool GetImageMap( const css::datatransfer::DataFlavor& rFlavor, ImageMap& rImap ) const;
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bool GetTransferableObjectDescriptor( SotClipboardFormatId nFormat, TransferableObjectDescriptor& rDesc );
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bool GetTransferableObjectDescriptor( TransferableObjectDescriptor& rDesc );
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bool GetINetBookmark( SotClipboardFormatId nFormat, INetBookmark& rBmk ) const;
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bool GetINetBookmark( const css::datatransfer::DataFlavor& rFlavor, INetBookmark& rBmk ) const;
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bool GetINetImage( SotClipboardFormatId nFormat, INetImage& rINtImg ) const;
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bool GetINetImage( const css::datatransfer::DataFlavor& rFlavor, INetImage& rINtImg ) const;
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bool GetFileList( SotClipboardFormatId nFormat, FileList& rFileList ) const;
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bool GetFileList( FileList& rFileList ) const;
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css::uno::Sequence<sal_Int8> GetSequence( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const;
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css::uno::Sequence<sal_Int8> GetSequence( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) const;
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bool GetSotStorageStream( SotClipboardFormatId nFormat, tools::SvRef<SotTempStream>& rStreamRef ) const;
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bool GetSotStorageStream( const css::datatransfer::DataFlavor& rFlavor, tools::SvRef<SotTempStream>& rStreamRef ) const;
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css::uno::Reference<css::io::XInputStream> GetInputStream( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const;
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css::uno::Reference<css::io::XInputStream> GetInputStream( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) const;
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static TransferableDataHelper CreateFromClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard>& rClipboard);
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static TransferableDataHelper CreateFromSystemClipboard( vcl::Window * pWindow );
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static TransferableDataHelper CreateFromPrimarySelection();
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static bool IsEqual( const css::datatransfer::DataFlavor& rInternalFlavor,
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const css::datatransfer::DataFlavor& rRequestFlavor );
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};
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class VCL_DLLPUBLIC DragSourceHelper
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{
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private:
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// nested class to implement the XDragGestureListener interface
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class SAL_DLLPRIVATE DragGestureListener final : public cppu::WeakImplHelper< css::datatransfer::dnd::XDragGestureListener >
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{
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private:
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DragSourceHelper& mrParent;
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private:
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// XEventListener
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virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
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// XDragGestureListener
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virtual void SAL_CALL dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& rDGE ) override;
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public:
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DragGestureListener( DragSourceHelper& rDragSourceHelper );
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virtual ~DragGestureListener() override;
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};
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friend class DragSourceHelper::DragGestureListener;
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private:
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std::mutex maMutex;
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css::uno::Reference< css::datatransfer::dnd::XDragGestureRecognizer > mxDragGestureRecognizer;
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css::uno::Reference< css::datatransfer::dnd::XDragGestureListener > mxDragGestureListener;
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DragSourceHelper& operator=( const DragSourceHelper& rDragSourceHelper ) = delete;
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bool operator==( const DragSourceHelper& rDragSourceHelper ) const = delete;
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public:
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// to be overridden by the application
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virtual void StartDrag( sal_Int8 nAction, const Point& rPosPixel );
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DragSourceHelper( vcl::Window* pWindow );
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void dispose();
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virtual ~DragSourceHelper();
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};
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class VCL_DLLPUBLIC DropTargetHelper
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{
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private:
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// nested class to implement the XDropTargetListener interface
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class SAL_DLLPRIVATE DropTargetListener final : public cppu::WeakImplHelper< css::datatransfer::dnd::XDropTargetListener >
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{
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private:
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DropTargetHelper& mrParent;
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std::unique_ptr<AcceptDropEvent> mpLastDragOverEvent;
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// XEventListener
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virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
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// XDropTargetListener
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virtual void SAL_CALL drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) override;
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virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;
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virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DropTargetEvent& dte ) override;
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virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
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virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
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public:
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DropTargetListener( DropTargetHelper& rDropTargetHelper );
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virtual ~DropTargetListener() override;
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};
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friend class DropTargetHelper::DropTargetListener;
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private:
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std::mutex maMutex;
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css::uno::Reference< css::datatransfer::dnd::XDropTarget > mxDropTarget;
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css::uno::Reference< css::datatransfer::dnd::XDropTargetListener > mxDropTargetListener;
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DataFlavorExVector maFormats;
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DropTargetHelper() = delete;
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DropTargetHelper& operator=( const DropTargetHelper& rDropTargetHelper ) = delete;
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bool operator==( const DropTargetHelper& rDropTargetHelper ) const = delete;
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void ImplConstruct();
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// called by our own implementation of XDropTargetListener (DropTargetListener instance)
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void ImplBeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors );
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void ImplEndDrag();
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public:
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// to be overridden by the application
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virtual sal_Int8 AcceptDrop( const AcceptDropEvent& rEvt );
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virtual sal_Int8 ExecuteDrop( const ExecuteDropEvent& rEvt );
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DropTargetHelper( vcl::Window* pWindow );
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DropTargetHelper( const css::uno::Reference< css::datatransfer::dnd::XDropTarget >& rxDropTarget );
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void dispose();
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virtual ~DropTargetHelper();
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// typically called by the application in ::AcceptDrop and ::ExecuteDrop and (see above)
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bool IsDropFormatSupported(SotClipboardFormatId nFormat) const;
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const DataFlavorExVector& GetDataFlavorExVector() const {return maFormats; }
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};
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struct TransferDataContainer_Impl;
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class VCL_DLLPUBLIC TransferDataContainer : public TransferableHelper
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{
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std::unique_ptr<TransferDataContainer_Impl> pImpl;
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virtual void AddSupportedFormats() override;
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virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override;
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public:
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TransferDataContainer();
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virtual ~TransferDataContainer() override;
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void CopyINetBookmark( const INetBookmark& rBkmk );
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void CopyString( const OUString& rStr );
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void CopyString( SotClipboardFormatId nFmt, const OUString& rStr );
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void CopyByteString( SotClipboardFormatId nFormatId, const OString& rStr );
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void CopyAnyData( SotClipboardFormatId nFormatId, const char* pData, sal_uLong nLen );
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bool HasAnyData() const;
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using TransferableHelper::StartDrag;
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void StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions,
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const Link<sal_Int8,void>& rCallback );
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virtual void DragFinished( sal_Int8 nDropAction ) override;
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};
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css::uno::Reference<css::datatransfer::clipboard::XClipboard> VCL_DLLPUBLIC GetSystemClipboard();
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css::uno::Reference<css::datatransfer::clipboard::XClipboard> VCL_DLLPUBLIC GetSystemPrimarySelection();
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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