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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 .
+ */
+
+#ifndef INCLUDED_VCL_TRANSFER_HXX
+#define INCLUDED_VCL_TRANSFER_HXX
+
+#include <vcl/dllapi.h>
+#include <tools/globname.hxx>
+#include <tools/gen.hxx>
+#include <tools/solar.h>
+#include <sot/formats.hxx>
+#include <sot/exchange.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/frame/XTerminateListener.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XUnoTunnel.hpp>
+#include <com/sun/star/datatransfer/XTransferable2.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
+#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
+#include <com/sun/star/datatransfer/dnd/XDragGestureListener.hpp>
+#include <com/sun/star/datatransfer/dnd/DropTargetDragEvent.hpp>
+#include <com/sun/star/datatransfer/dnd/DropTargetDropEvent.hpp>
+#include <com/sun/star/datatransfer/dnd/XDragSourceListener.hpp>
+#include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
+#include <com/sun/star/embed/Aspects.hpp>
+#include <memory>
+
+namespace com::sun::star::datatransfer::dnd { class XDragGestureRecognizer; }
+namespace com::sun::star::io { class XInputStream; }
+namespace com::sun::star::datatransfer::dnd { class XDropTarget; }
+
+namespace tools { template <typename T> class SvRef; }
+template <typename Arg, typename Ret> class Link;
+
+class BitmapEx;
+class GDIMetaFile;
+class Graphic;
+class ImageMap;
+class INetBookmark;
+class INetImage;
+class FileList;
+class SotStorageStream;
+namespace vcl { class Window; }
+
+// Drag&Drop defines
+
+#define DND_ACTION_NONE css::datatransfer::dnd::DNDConstants::ACTION_NONE
+#define DND_ACTION_COPY css::datatransfer::dnd::DNDConstants::ACTION_COPY
+#define DND_ACTION_MOVE css::datatransfer::dnd::DNDConstants::ACTION_MOVE
+#define DND_ACTION_COPYMOVE css::datatransfer::dnd::DNDConstants::ACTION_COPY_OR_MOVE
+#define DND_ACTION_LINK css::datatransfer::dnd::DNDConstants::ACTION_LINK
+
+#define DND_POINTER_NONE 0
+#define DND_IMAGE_NONE 0
+
+struct TransferableObjectDescriptor
+{
+ SvGlobalName maClassName;
+ sal_uInt16 mnViewAspect;
+ Point maDragStartPos;
+ Size maSize;
+ OUString maTypeName;
+ OUString maDisplayName;
+
+ TransferableObjectDescriptor()
+ : mnViewAspect(css::embed::Aspects::MSOLE_CONTENT)
+ {}
+
+ VCL_DLLPUBLIC friend SvStream& WriteTransferableObjectDescriptor( SvStream& rOStm, const TransferableObjectDescriptor& rObjDesc );
+};
+
+struct AcceptDropEvent
+{
+ sal_Int8 mnAction;
+ Point maPosPixel;
+ const css::datatransfer::dnd::DropTargetDragEvent maDragEvent;
+ bool mbLeaving;
+ bool mbDefault;
+
+ AcceptDropEvent() :
+ mnAction( DND_ACTION_NONE ),
+ mbLeaving( false ),
+ mbDefault( false ) {}
+
+ AcceptDropEvent( sal_Int8 nAction,
+ const Point& rPosPixel,
+ const css::datatransfer::dnd::DropTargetDragEvent& rDragEvent ) :
+ mnAction( nAction ),
+ maPosPixel( rPosPixel ),
+ maDragEvent( rDragEvent ),
+ mbLeaving( false ),
+ mbDefault( false ) {}
+};
+
+struct ExecuteDropEvent
+{
+ sal_Int8 mnAction;
+ Point maPosPixel;
+ const css::datatransfer::dnd::DropTargetDropEvent maDropEvent;
+ bool mbDefault;
+
+ ExecuteDropEvent( sal_Int8 nAction,
+ const Point& rPosPixel,
+ const css::datatransfer::dnd::DropTargetDropEvent& rDropEvent ) :
+ mnAction( nAction ),
+ maPosPixel( rPosPixel ),
+ maDropEvent( rDropEvent ),
+ mbDefault( false ) {}
+};
+
+class VCL_DLLPUBLIC TransferableHelper : public cppu::WeakImplHelper< css::datatransfer::XTransferable2,
+ css::datatransfer::clipboard::XClipboardOwner,
+ css::datatransfer::dnd::XDragSourceListener,
+ css::lang::XUnoTunnel >
+{
+private:
+
+ // nested class to implement the XTerminateListener interface
+ class VCL_DLLPRIVATE TerminateListener : public cppu::WeakImplHelper< css::frame::XTerminateListener, css::lang::XServiceInfo >
+ {
+ private:
+
+ TransferableHelper& mrParent;
+
+ private:
+
+ // XEventListener
+ virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+ // XTerminateListener
+ virtual void SAL_CALL queryTermination( const css::lang::EventObject& aEvent ) override;
+ virtual void SAL_CALL notifyTermination( const css::lang::EventObject& aEvent ) override;
+
+ // XServiceInfo
+ virtual OUString SAL_CALL getImplementationName() override;
+ virtual sal_Bool SAL_CALL supportsService( const OUString& sServiceName ) override;
+ virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+ public:
+
+ TerminateListener( TransferableHelper& rDropTargetHelper );
+ virtual ~TerminateListener() override;
+ };
+
+ friend class TransferableHelper::TerminateListener;
+
+private:
+
+ css::uno::Any maAny;
+ OUString maLastFormat;
+ mutable css::uno::Reference< css::datatransfer::clipboard::XClipboard > mxClipboard;
+ css::uno::Reference< css::frame::XTerminateListener > mxTerminateListener;
+ DataFlavorExVector maFormats;
+ std::unique_ptr<TransferableObjectDescriptor> mxObjDesc;
+
+protected:
+ ~TransferableHelper();
+
+ const css::uno::Reference< css::datatransfer::clipboard::XClipboard >&
+ getOwnClipboard() const { return mxClipboard; }
+
+private:
+
+ // XTransferable
+ virtual css::uno::Any SAL_CALL getTransferData( const css::datatransfer::DataFlavor& rFlavor ) override;
+ virtual css::uno::Sequence< css::datatransfer::DataFlavor > SAL_CALL getTransferDataFlavors() override;
+ virtual sal_Bool SAL_CALL isDataFlavorSupported( const css::datatransfer::DataFlavor& rFlavor ) override;
+
+ // Transferable2
+ virtual css::uno::Any SAL_CALL getTransferData2(
+ const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override;
+ virtual sal_Bool SAL_CALL isComplex() override;
+
+ // XEventListener
+ virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+ // XDragSourceListener
+ virtual void SAL_CALL dragDropEnd( const css::datatransfer::dnd::DragSourceDropEvent& dsde ) override;
+ virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
+ virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DragSourceEvent& dse ) override;
+ virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
+ virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
+
+private:
+
+ // XClipboardOwner
+ virtual void SAL_CALL lostOwnership( const css::uno::Reference< css::datatransfer::clipboard::XClipboard >& xClipboard, const css::uno::Reference< css::datatransfer::XTransferable >& xTrans ) override;
+
+protected:
+ // derivees need to access lostOwnership in case hey override it
+ // on windows, changing the access rights to a method gives unresolved externals, so we introduce
+ // this impl-method here 'til the next incompatible update
+ void implCallOwnLostOwnership(
+ const css::uno::Reference< css::datatransfer::clipboard::XClipboard >& _rxClipboard,
+ const css::uno::Reference< css::datatransfer::XTransferable >& _rxTrans
+ )
+ {
+ TransferableHelper::lostOwnership( _rxClipboard, _rxTrans );
+ }
+
+
+private:
+
+ VCL_DLLPRIVATE void ImplFlush();
+
+protected:
+
+ void AddFormat( SotClipboardFormatId nFormat );
+ void AddFormat( const css::datatransfer::DataFlavor& rFlavor );
+ void RemoveFormat( SotClipboardFormatId nFormat );
+ void RemoveFormat( const css::datatransfer::DataFlavor& rFlavor );
+ bool HasFormat( SotClipboardFormatId nFormat );
+ void ClearFormats();
+
+ bool SetAny( const css::uno::Any& rAny );
+ bool SetString( const OUString& rString, const css::datatransfer::DataFlavor& rFlavor );
+ bool SetBitmapEx( const BitmapEx& rBitmap, const css::datatransfer::DataFlavor& rFlavor );
+ bool SetGDIMetaFile( const GDIMetaFile& rMtf );
+ bool SetGraphic( const Graphic& rGraphic );
+ bool SetImageMap( const ImageMap& rIMap );
+ bool SetTransferableObjectDescriptor( const TransferableObjectDescriptor& rDesc );
+ bool SetINetBookmark( const INetBookmark& rBmk, const css::datatransfer::DataFlavor& rFlavor );
+ bool SetINetImage( const INetImage& rINtImg, const css::datatransfer::DataFlavor& rFlavor );
+ bool SetObject( void* pUserObject, sal_uInt32 nUserObjectId, const css::datatransfer::DataFlavor& rFlavor );
+
+protected:
+
+ virtual void AddSupportedFormats() = 0;
+ virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) = 0;
+ virtual bool WriteObject( tools::SvRef<SotStorageStream>& rxOStm, void* pUserObject, sal_uInt32 nUserObjectId, const css::datatransfer::DataFlavor& rFlavor );
+ virtual void DragFinished( sal_Int8 nDropAction );
+ virtual void ObjectReleased();
+
+public:
+
+ void PrepareOLE( const TransferableObjectDescriptor& rObjDesc );
+
+ void CopyToClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard> &rClipboard) const;
+ void CopyToSelection(const css::uno::Reference<css::datatransfer::clipboard::XClipboard> &rClipboard) const;
+
+ // convenience versions of the above which extract the XClipboard from the pWindow
+ void CopyToClipboard( vcl::Window *pWindow ) const;
+ void CopyToSelection( vcl::Window *pWindow ) const;
+
+ void StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions );
+
+ static void ClearSelection( vcl::Window *pWindow );
+
+ static const css::uno::Sequence< sal_Int8 >& getUnoTunnelId();
+
+public:
+
+ virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& rId ) override;
+};
+
+struct TransferableDataHelper_Impl;
+
+class VCL_DLLPUBLIC TransferableDataHelper final
+{
+ friend class DropTargetHelper;
+
+ css::uno::Reference< css::datatransfer::XTransferable > mxTransfer;
+ css::uno::Reference< css::datatransfer::clipboard::XClipboard > mxClipboard;
+ DataFlavorExVector maFormats;
+ std::unique_ptr<TransferableObjectDescriptor> mxObjDesc;
+ std::unique_ptr<TransferableDataHelper_Impl> mxImpl;
+
+ void InitFormats();
+
+public:
+
+ static void FillDataFlavorExVector( const css::uno::Sequence< css::datatransfer::DataFlavor >& rDataFlavorSeq,
+ DataFlavorExVector& rDataFlavorExVector );
+
+ TransferableDataHelper();
+ TransferableDataHelper( const TransferableDataHelper& rDataHelper );
+ TransferableDataHelper( TransferableDataHelper&& rDataHelper ) noexcept;
+ TransferableDataHelper( const css::uno::Reference< css::datatransfer::XTransferable >& rxTransferable );
+ ~TransferableDataHelper();
+
+ TransferableDataHelper& operator=( const TransferableDataHelper& rDataHelper );
+ TransferableDataHelper& operator=( TransferableDataHelper&& rDataHelper );
+
+ const css::uno::Reference< css::datatransfer::XTransferable >& GetTransferable() const { return mxTransfer; }
+ css::uno::Reference< css::datatransfer::XTransferable > GetXTransferable() const;
+
+ bool HasFormat( SotClipboardFormatId nFormat ) const;
+ bool HasFormat( const css::datatransfer::DataFlavor& rFlavor ) const;
+
+ sal_uInt32 GetFormatCount() const;
+
+ SotClipboardFormatId GetFormat( sal_uInt32 nFormat ) const;
+ css::datatransfer::DataFlavor GetFormatDataFlavor( sal_uInt32 nFormat ) const;
+
+ const DataFlavorExVector& GetDataFlavorExVector() const {return maFormats; }
+
+ bool StartClipboardListening( );
+ void StopClipboardListening( );
+
+ void Rebind( const css::uno::Reference< css::datatransfer::XTransferable >& _rxNewData );
+
+ css::uno::Any GetAny( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const;
+ css::uno::Any GetAny( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) const;
+
+ bool GetString( SotClipboardFormatId nFormat, OUString& rStr );
+ bool GetString( const css::datatransfer::DataFlavor& rFlavor, OUString& rStr );
+
+ bool GetBitmapEx( SotClipboardFormatId nFormat, BitmapEx& rBmp );
+ bool GetBitmapEx( const css::datatransfer::DataFlavor& rFlavor, BitmapEx& rBmp );
+
+ /** Return as GDI metafile.
+
+ @param nMaxAction Allows you to limit the amount of actions; defaults to 0 which means no limit.
+
+ When you eg. Ctrl+a in Excel, you can get the entire sheet as
+ metafile, with over 3 million (!) actions; which is just too large for
+ any reasonable handling - and you need to set a limit.
+ */
+ bool GetGDIMetaFile( SotClipboardFormatId nFormat, GDIMetaFile& rMtf, size_t nMaxActions = 0 );
+ bool GetGDIMetaFile( const css::datatransfer::DataFlavor& rFlavor, GDIMetaFile& rMtf );
+
+ bool GetGraphic( SotClipboardFormatId nFormat, Graphic& rGraphic );
+ bool GetGraphic( const css::datatransfer::DataFlavor& rFlavor, Graphic& rGraphic );
+
+ bool GetImageMap( SotClipboardFormatId nFormat, ImageMap& rIMap );
+ bool GetImageMap( const css::datatransfer::DataFlavor& rFlavor, ImageMap& rImap );
+
+ bool GetTransferableObjectDescriptor( SotClipboardFormatId nFormat, TransferableObjectDescriptor& rDesc );
+ bool GetTransferableObjectDescriptor( TransferableObjectDescriptor& rDesc );
+
+ bool GetINetBookmark( SotClipboardFormatId nFormat, INetBookmark& rBmk );
+ bool GetINetBookmark( const css::datatransfer::DataFlavor& rFlavor, INetBookmark& rBmk );
+
+ bool GetINetImage( SotClipboardFormatId nFormat, INetImage& rINtImg );
+ bool GetINetImage( const css::datatransfer::DataFlavor& rFlavor, INetImage& rINtImg );
+
+ bool GetFileList( SotClipboardFormatId nFormat, FileList& rFileList );
+ bool GetFileList( FileList& rFileList );
+
+ css::uno::Sequence<sal_Int8> GetSequence( SotClipboardFormatId nFormat, const OUString& rDestDoc );
+ css::uno::Sequence<sal_Int8> GetSequence( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc );
+
+ bool GetSotStorageStream( SotClipboardFormatId nFormat, tools::SvRef<SotStorageStream>& rStreamRef );
+ bool GetSotStorageStream( const css::datatransfer::DataFlavor& rFlavor, tools::SvRef<SotStorageStream>& rStreamRef );
+
+ css::uno::Reference<css::io::XInputStream> GetInputStream( SotClipboardFormatId nFormat, const OUString& rDestDoc );
+ css::uno::Reference<css::io::XInputStream> GetInputStream( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc );
+
+ static TransferableDataHelper CreateFromClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard>& rClipboard);
+ static TransferableDataHelper CreateFromSystemClipboard( vcl::Window * pWindow );
+ static TransferableDataHelper CreateFromSelection( vcl::Window * pWindow );
+ static bool IsEqual( const css::datatransfer::DataFlavor& rInternalFlavor,
+ const css::datatransfer::DataFlavor& rRequestFlavor );
+};
+
+class VCL_DLLPUBLIC DragSourceHelper
+{
+private:
+
+ // nested class to implement the XDragGestureListener interface
+ class SAL_DLLPRIVATE DragGestureListener : public cppu::WeakImplHelper< css::datatransfer::dnd::XDragGestureListener >
+ {
+ private:
+
+ DragSourceHelper& mrParent;
+
+ private:
+
+ // XEventListener
+ virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+ // XDragGestureListener
+ virtual void SAL_CALL dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& rDGE ) override;
+
+ public:
+
+ DragGestureListener( DragSourceHelper& rDragSourceHelper );
+ virtual ~DragGestureListener() override;
+ };
+
+ friend class DragSourceHelper::DragGestureListener;
+
+private:
+ osl::Mutex maMutex;
+ css::uno::Reference< css::datatransfer::dnd::XDragGestureRecognizer > mxDragGestureRecognizer;
+
+ css::uno::Reference< css::datatransfer::dnd::XDragGestureListener > mxDragGestureListener;
+
+ DragSourceHelper& operator=( const DragSourceHelper& rDragSourceHelper ) = delete;
+ bool operator==( const DragSourceHelper& rDragSourceHelper ) const = delete;
+
+public:
+
+ // to be overridden by the application
+ virtual void StartDrag( sal_Int8 nAction, const Point& rPosPixel );
+
+ DragSourceHelper( vcl::Window* pWindow );
+ void dispose();
+ virtual ~DragSourceHelper();
+};
+
+class VCL_DLLPUBLIC DropTargetHelper
+{
+private:
+
+ // nested class to implement the XDropTargetListener interface
+ class SAL_DLLPRIVATE DropTargetListener : public cppu::WeakImplHelper< css::datatransfer::dnd::XDropTargetListener >
+ {
+ private:
+
+ DropTargetHelper& mrParent;
+ std::unique_ptr<AcceptDropEvent> mpLastDragOverEvent;
+
+ // XEventListener
+ virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+ // XDropTargetListener
+ virtual void SAL_CALL drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) override;
+ virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;
+ virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DropTargetEvent& dte ) override;
+ virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
+ virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
+
+ public:
+
+ DropTargetListener( DropTargetHelper& rDropTargetHelper );
+ virtual ~DropTargetListener() override;
+ };
+
+ friend class DropTargetHelper::DropTargetListener;
+
+private:
+ osl::Mutex maMutex;
+ css::uno::Reference< css::datatransfer::dnd::XDropTarget > mxDropTarget;
+
+ css::uno::Reference< css::datatransfer::dnd::XDropTargetListener > mxDropTargetListener;
+ DataFlavorExVector maFormats;
+
+ DropTargetHelper() = delete;
+ DropTargetHelper& operator=( const DropTargetHelper& rDropTargetHelper ) = delete;
+ bool operator==( const DropTargetHelper& rDropTargetHelper ) const = delete;
+
+ void ImplConstruct();
+
+ // called by our own implementation of XDropTargetListener (DropTargetListener instance)
+ void ImplBeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors );
+ void ImplEndDrag();
+
+public:
+
+ // to be overridden by the application
+ virtual sal_Int8 AcceptDrop( const AcceptDropEvent& rEvt );
+ virtual sal_Int8 ExecuteDrop( const ExecuteDropEvent& rEvt );
+
+ DropTargetHelper( vcl::Window* pWindow );
+ DropTargetHelper( const css::uno::Reference< css::datatransfer::dnd::XDropTarget >& rxDropTarget );
+
+ void dispose();
+ virtual ~DropTargetHelper();
+
+ // typically called by the application in ::AcceptDrop and ::ExecuteDrop and (see above)
+ bool IsDropFormatSupported(SotClipboardFormatId nFormat) const;
+
+ const DataFlavorExVector& GetDataFlavorExVector() const {return maFormats; }
+
+};
+
+struct TransferDataContainer_Impl;
+
+class VCL_DLLPUBLIC TransferDataContainer : public TransferableHelper
+{
+ std::unique_ptr<TransferDataContainer_Impl> pImpl;
+
+ virtual void AddSupportedFormats() override;
+ virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override;
+
+public:
+
+ TransferDataContainer();
+ virtual ~TransferDataContainer() override;
+
+ void CopyINetBookmark( const INetBookmark& rBkmk );
+ void CopyString( const OUString& rStr );
+ void CopyString( SotClipboardFormatId nFmt, const OUString& rStr );
+
+ void CopyByteString( SotClipboardFormatId nFormatId, const OString& rStr );
+ void CopyAnyData( SotClipboardFormatId nFormatId, const char* pData, sal_uLong nLen );
+
+ bool HasAnyData() const;
+
+ using TransferableHelper::StartDrag;
+ void StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions,
+ const Link<sal_Int8,void>& rCallbck );
+ virtual void DragFinished( sal_Int8 nDropAction ) override;
+};
+
+css::uno::Reference<css::datatransfer::clipboard::XClipboard> VCL_DLLPUBLIC GetSystemClipboard();
+css::uno::Reference<css::datatransfer::clipboard::XClipboard> VCL_DLLPUBLIC GetSystemPrimarySelection();
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */