include/vcl/transfer.hxx

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  10  *
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  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_TRANSFER_HXX
  21 #define INCLUDED_VCL_TRANSFER_HXX
  22
  23 #include <vcl/dllapi.h>
  24 #include <tools/globname.hxx>
  25 #include <tools/gen.hxx>
  26 #include <tools/solar.h>
  27 #include <sot/formats.hxx>
  28 #include <sot/exchange.hxx>
  29 #include <cppuhelper/implbase.hxx>
  30 #include <com/sun/star/frame/XTerminateListener.hpp>
  31 #include <com/sun/star/lang/XServiceInfo.hpp>
  32 #include <com/sun/star/lang/XUnoTunnel.hpp>
  33 #include <com/sun/star/datatransfer/XTransferable2.hpp>
  34 #include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
  35 #include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
  36 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  37 #include <com/sun/star/datatransfer/dnd/XDragGestureListener.hpp>
  38 #include <com/sun/star/datatransfer/dnd/DropTargetDragEvent.hpp>
  39 #include <com/sun/star/datatransfer/dnd/DropTargetDropEvent.hpp>
  40 #include <com/sun/star/datatransfer/dnd/XDragSourceListener.hpp>
  41 #include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
  42 #include <com/sun/star/embed/Aspects.hpp>
  43 #include <memory>
  44
  45 namespace com::sun::star::datatransfer::dnd { class XDragGestureRecognizer; }
  46 namespace com::sun::star::io { class XInputStream; }
  47 namespace com::sun::star::datatransfer::dnd { class XDropTarget; }
  48
  49 namespace tools { template <typename T> class SvRef; }
  50 template <typename Arg, typename Ret> class Link;
  51
  52 class BitmapEx;
  53 class GDIMetaFile;
  54 class Graphic;
  55 class ImageMap;
  56 class INetBookmark;
  57 class INetImage;
  58 class FileList;
  59 class SotStorageStream;
  60 namespace vcl { class Window; }
  61
  62 // Drag&Drop defines
  63
  64 #define DND_ACTION_NONE     css::datatransfer::dnd::DNDConstants::ACTION_NONE
  65 #define DND_ACTION_COPY     css::datatransfer::dnd::DNDConstants::ACTION_COPY
  66 #define DND_ACTION_MOVE     css::datatransfer::dnd::DNDConstants::ACTION_MOVE
  67 #define DND_ACTION_COPYMOVE css::datatransfer::dnd::DNDConstants::ACTION_COPY_OR_MOVE
  68 #define DND_ACTION_LINK     css::datatransfer::dnd::DNDConstants::ACTION_LINK
  69
  70 #define DND_POINTER_NONE    0
  71 #define DND_IMAGE_NONE      0
  72
  73 struct TransferableObjectDescriptor
  74 {
  75     SvGlobalName        maClassName;
  76     sal_uInt16          mnViewAspect;
  77     Point               maDragStartPos;
  78     Size                maSize;
  79     OUString            maTypeName;
  80     OUString            maDisplayName;
  81
  82     TransferableObjectDescriptor()
  83         : mnViewAspect(css::embed::Aspects::MSOLE_CONTENT)
  84     {}
  85
  86     VCL_DLLPUBLIC friend SvStream&  WriteTransferableObjectDescriptor( SvStream& rOStm, const TransferableObjectDescriptor& rObjDesc );
  87 };
  88
  89 struct AcceptDropEvent
  90 {
  91     sal_Int8                                                        mnAction;
  92     Point                                                           maPosPixel;
  93     const css::datatransfer::dnd::DropTargetDragEvent               maDragEvent;
  94     bool                                                            mbLeaving;
  95     bool                                                            mbDefault;
  96
  97     AcceptDropEvent() :
  98         mnAction( DND_ACTION_NONE ),
  99         mbLeaving( false ),
 100         mbDefault( false ) {}
 101
 102     AcceptDropEvent( sal_Int8 nAction,
 103                      const Point& rPosPixel,
 104                      const css::datatransfer::dnd::DropTargetDragEvent& rDragEvent ) :
 105         mnAction( nAction ),
 106         maPosPixel( rPosPixel ),
 107         maDragEvent( rDragEvent ),
 108         mbLeaving( false ),
 109         mbDefault( false ) {}
 110 };
 111
 112 struct ExecuteDropEvent
 113 {
 114     sal_Int8                                                        mnAction;
 115     Point                                                           maPosPixel;
 116     const css::datatransfer::dnd::DropTargetDropEvent               maDropEvent;
 117     bool                                                            mbDefault;
 118
 119     ExecuteDropEvent( sal_Int8 nAction,
 120                       const Point& rPosPixel,
 121                       const css::datatransfer::dnd::DropTargetDropEvent& rDropEvent ) :
 122         mnAction( nAction ),
 123         maPosPixel( rPosPixel ),
 124         maDropEvent( rDropEvent ),
 125         mbDefault( false ) {}
 126 };
 127
 128 class VCL_DLLPUBLIC TransferableHelper : public cppu::WeakImplHelper< css::datatransfer::XTransferable2,
 129                                                            css::datatransfer::clipboard::XClipboardOwner,
 130                                                            css::datatransfer::dnd::XDragSourceListener,
 131                                                            css::lang::XUnoTunnel >
 132 {
 133 private:
 134
 135     // nested class to implement the XTerminateListener interface
 136     class VCL_DLLPRIVATE TerminateListener : public cppu::WeakImplHelper< css::frame::XTerminateListener, css::lang::XServiceInfo >
 137     {
 138     private:
 139
 140         TransferableHelper& mrParent;
 141
 142     private:
 143
 144         // XEventListener
 145         virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
 146
 147         // XTerminateListener
 148         virtual void SAL_CALL queryTermination( const css::lang::EventObject& aEvent ) override;
 149         virtual void SAL_CALL notifyTermination( const css::lang::EventObject& aEvent ) override;
 150
 151         // XServiceInfo
 152         virtual OUString SAL_CALL getImplementationName() override;
 153         virtual sal_Bool SAL_CALL supportsService( const OUString& sServiceName ) override;
 154         virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
 155
 156     public:
 157
 158                               TerminateListener( TransferableHelper& rDropTargetHelper );
 159         virtual               ~TerminateListener() override;
 160     };
 161
 162     friend class TransferableHelper::TerminateListener;
 163
 164 private:
 165
 166     css::uno::Any                                                             maAny;
 167     OUString                                                                  maLastFormat;
 168     mutable css::uno::Reference< css::datatransfer::clipboard::XClipboard >   mxClipboard;
 169     css::uno::Reference< css::frame::XTerminateListener >                     mxTerminateListener;
 170     DataFlavorExVector                                                        maFormats;
 171     std::unique_ptr<TransferableObjectDescriptor>                             mxObjDesc;
 172
 173 protected:
 174     ~TransferableHelper();
 175
 176     const css::uno::Reference< css::datatransfer::clipboard::XClipboard >&
 177         getOwnClipboard() const { return mxClipboard; }
 178
 179 private:
 180
 181     // XTransferable
 182     virtual css::uno::Any SAL_CALL getTransferData( const css::datatransfer::DataFlavor& rFlavor ) override;
 183     virtual css::uno::Sequence< css::datatransfer::DataFlavor > SAL_CALL getTransferDataFlavors() override;
 184     virtual sal_Bool SAL_CALL isDataFlavorSupported( const css::datatransfer::DataFlavor& rFlavor ) override;
 185
 186     // Transferable2
 187     virtual css::uno::Any SAL_CALL getTransferData2(
 188         const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override;
 189     virtual sal_Bool SAL_CALL isComplex() override;
 190
 191     // XEventListener
 192     virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
 193
 194     // XDragSourceListener
 195     virtual void SAL_CALL dragDropEnd( const css::datatransfer::dnd::DragSourceDropEvent& dsde ) override;
 196     virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
 197     virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DragSourceEvent& dse ) override;
 198     virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
 199     virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DragSourceDragEvent& dsde ) override;
 200
 201 private:
 202
 203     // XClipboardOwner
 204     virtual void SAL_CALL lostOwnership( const css::uno::Reference< css::datatransfer::clipboard::XClipboard >& xClipboard, const css::uno::Reference< css::datatransfer::XTransferable >& xTrans ) override;
 205
 206 protected:
 207     // derivees need to access lostOwnership in case hey override it
 208     // on windows, changing the access rights to a method gives unresolved externals, so we introduce
 209     // this impl-method here 'til the next incompatible update
 210     void    implCallOwnLostOwnership(
 211                         const css::uno::Reference< css::datatransfer::clipboard::XClipboard >& _rxClipboard,
 212                         const css::uno::Reference< css::datatransfer::XTransferable >& _rxTrans
 213                     )
 214             {
 215                 TransferableHelper::lostOwnership( _rxClipboard, _rxTrans );
 216             }
 217
 218
 219 private:
 220
 221     VCL_DLLPRIVATE void             ImplFlush();
 222
 223 protected:
 224
 225     void                AddFormat( SotClipboardFormatId nFormat );
 226     void                AddFormat( const css::datatransfer::DataFlavor& rFlavor );
 227     void                RemoveFormat( SotClipboardFormatId nFormat );
 228     void                RemoveFormat( const css::datatransfer::DataFlavor& rFlavor );
 229     bool                HasFormat( SotClipboardFormatId nFormat );
 230     void                ClearFormats();
 231
 232     bool                SetAny( const css::uno::Any& rAny );
 233     bool                SetString( const OUString& rString, const css::datatransfer::DataFlavor& rFlavor );
 234     bool                SetBitmapEx( const BitmapEx& rBitmap, const css::datatransfer::DataFlavor& rFlavor );
 235     bool                SetGDIMetaFile( const GDIMetaFile& rMtf );
 236     bool                SetGraphic( const Graphic& rGraphic );
 237     bool                SetImageMap( const ImageMap& rIMap );
 238     bool                SetTransferableObjectDescriptor( const TransferableObjectDescriptor& rDesc );
 239     bool                SetINetBookmark( const INetBookmark& rBmk, const css::datatransfer::DataFlavor& rFlavor );
 240     bool                SetINetImage( const INetImage& rINtImg, const css::datatransfer::DataFlavor& rFlavor );
 241     bool                SetObject( void* pUserObject, sal_uInt32 nUserObjectId, const css::datatransfer::DataFlavor& rFlavor );
 242
 243 protected:
 244
 245     virtual void        AddSupportedFormats() = 0;
 246     virtual bool        GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) = 0;
 247     virtual bool        WriteObject( tools::SvRef<SotStorageStream>& rxOStm, void* pUserObject, sal_uInt32 nUserObjectId, const css::datatransfer::DataFlavor& rFlavor );
 248     virtual void        DragFinished( sal_Int8 nDropAction );
 249     virtual void        ObjectReleased();
 250
 251 public:
 252
 253     void                PrepareOLE( const TransferableObjectDescriptor& rObjDesc );
 254
 255     void                CopyToClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard> &rClipboard) const;
 256     void                CopyToSelection(const css::uno::Reference<css::datatransfer::clipboard::XClipboard> &rClipboard) const;
 257
 258     // convenience versions of the above which extract the XClipboard from the pWindow
 259     void                CopyToClipboard( vcl::Window *pWindow ) const;
 260     void                CopyToSelection( vcl::Window *pWindow ) const;
 261
 262     void                StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions );
 263
 264     static void         ClearSelection( vcl::Window *pWindow );
 265
 266     static const css::uno::Sequence< sal_Int8 >& getUnoTunnelId();
 267
 268 public:
 269
 270     virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& rId ) override;
 271 };
 272
 273 struct TransferableDataHelper_Impl;
 274
 275 class VCL_DLLPUBLIC TransferableDataHelper final
 276 {
 277     friend class DropTargetHelper;
 278
 279     css::uno::Reference< css::datatransfer::XTransferable >           mxTransfer;
 280     css::uno::Reference< css::datatransfer::clipboard::XClipboard >   mxClipboard;
 281     DataFlavorExVector                                                maFormats;
 282     std::unique_ptr<TransferableObjectDescriptor>                     mxObjDesc;
 283     std::unique_ptr<TransferableDataHelper_Impl>                      mxImpl;
 284
 285     void                        InitFormats();
 286
 287 public:
 288
 289     static void                 FillDataFlavorExVector( const css::uno::Sequence< css::datatransfer::DataFlavor >& rDataFlavorSeq,
 290                                                         DataFlavorExVector& rDataFlavorExVector );
 291
 292                                 TransferableDataHelper();
 293                                 TransferableDataHelper( const TransferableDataHelper& rDataHelper );
 294                                 TransferableDataHelper( TransferableDataHelper&& rDataHelper ) noexcept;
 295                                 TransferableDataHelper( const css::uno::Reference< css::datatransfer::XTransferable >& rxTransferable );
 296                                 ~TransferableDataHelper();
 297
 298     TransferableDataHelper&     operator=( const TransferableDataHelper& rDataHelper );
 299     TransferableDataHelper&     operator=( TransferableDataHelper&& rDataHelper );
 300
 301     const css::uno::Reference< css::datatransfer::XTransferable >&    GetTransferable() const { return mxTransfer; }
 302     css::uno::Reference< css::datatransfer::XTransferable >           GetXTransferable() const;
 303
 304     bool                        HasFormat( SotClipboardFormatId nFormat ) const;
 305     bool                        HasFormat( const css::datatransfer::DataFlavor& rFlavor ) const;
 306
 307     sal_uInt32                  GetFormatCount() const;
 308
 309     SotClipboardFormatId           GetFormat( sal_uInt32 nFormat ) const;
 310     css::datatransfer::DataFlavor  GetFormatDataFlavor( sal_uInt32 nFormat ) const;
 311
 312     const DataFlavorExVector&   GetDataFlavorExVector() const {return maFormats; }
 313
 314     bool                        StartClipboardListening( );
 315     void                        StopClipboardListening( );
 316
 317     void                        Rebind( const css::uno::Reference< css::datatransfer::XTransferable >& _rxNewData );
 318
 319     css::uno::Any GetAny( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const;
 320     css::uno::Any GetAny( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) const;
 321
 322     bool                        GetString( SotClipboardFormatId nFormat, OUString& rStr );
 323     bool                        GetString( const css::datatransfer::DataFlavor& rFlavor, OUString& rStr );
 324
 325     bool                        GetBitmapEx( SotClipboardFormatId nFormat, BitmapEx& rBmp );
 326     bool                        GetBitmapEx( const css::datatransfer::DataFlavor& rFlavor, BitmapEx& rBmp );
 327
 328     /** Return as GDI metafile.
 329
 330         @param nMaxAction Allows you to limit the amount of actions; defaults to 0 which means no limit.
 331
 332         When you eg. Ctrl+a in Excel, you can get the entire sheet as
 333         metafile, with over 3 million (!) actions; which is just too large for
 334         any reasonable handling - and you need to set a limit.
 335     */
 336     bool                        GetGDIMetaFile( SotClipboardFormatId nFormat, GDIMetaFile& rMtf, size_t nMaxActions = 0 );
 337     bool                        GetGDIMetaFile( const css::datatransfer::DataFlavor& rFlavor, GDIMetaFile& rMtf );
 338
 339     bool                        GetGraphic( SotClipboardFormatId nFormat, Graphic& rGraphic );
 340     bool                        GetGraphic( const css::datatransfer::DataFlavor& rFlavor, Graphic& rGraphic );
 341
 342     bool                        GetImageMap( SotClipboardFormatId nFormat, ImageMap& rIMap );
 343     bool                        GetImageMap( const css::datatransfer::DataFlavor& rFlavor, ImageMap& rImap );
 344
 345     bool                        GetTransferableObjectDescriptor( SotClipboardFormatId nFormat, TransferableObjectDescriptor& rDesc );
 346     bool                        GetTransferableObjectDescriptor( TransferableObjectDescriptor& rDesc );
 347
 348     bool                        GetINetBookmark( SotClipboardFormatId nFormat, INetBookmark& rBmk );
 349     bool                        GetINetBookmark( const css::datatransfer::DataFlavor& rFlavor, INetBookmark& rBmk );
 350
 351     bool                        GetINetImage( SotClipboardFormatId nFormat, INetImage& rINtImg );
 352     bool                        GetINetImage( const css::datatransfer::DataFlavor& rFlavor, INetImage& rINtImg );
 353
 354     bool                        GetFileList( SotClipboardFormatId nFormat, FileList& rFileList );
 355     bool                        GetFileList( FileList& rFileList );
 356
 357     css::uno::Sequence<sal_Int8> GetSequence( SotClipboardFormatId nFormat, const OUString& rDestDoc );
 358     css::uno::Sequence<sal_Int8> GetSequence( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc );
 359
 360     bool                        GetSotStorageStream( SotClipboardFormatId nFormat, tools::SvRef<SotStorageStream>& rStreamRef );
 361     bool                        GetSotStorageStream( const css::datatransfer::DataFlavor& rFlavor, tools::SvRef<SotStorageStream>& rStreamRef );
 362
 363     css::uno::Reference<css::io::XInputStream> GetInputStream( SotClipboardFormatId nFormat, const OUString& rDestDoc );
 364     css::uno::Reference<css::io::XInputStream> GetInputStream( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc );
 365
 366     static TransferableDataHelper   CreateFromClipboard(const css::uno::Reference<css::datatransfer::clipboard::XClipboard>& rClipboard);
 367     static TransferableDataHelper   CreateFromSystemClipboard( vcl::Window * pWindow );
 368     static TransferableDataHelper   CreateFromSelection( vcl::Window * pWindow );
 369     static bool                     IsEqual( const css::datatransfer::DataFlavor& rInternalFlavor,
 370                                              const css::datatransfer::DataFlavor& rRequestFlavor );
 371 };
 372
 373 class VCL_DLLPUBLIC DragSourceHelper
 374 {
 375 private:
 376
 377     // nested class to implement the XDragGestureListener interface
 378     class SAL_DLLPRIVATE DragGestureListener : public cppu::WeakImplHelper< css::datatransfer::dnd::XDragGestureListener >
 379     {
 380     private:
 381
 382         DragSourceHelper&   mrParent;
 383
 384     private:
 385
 386         // XEventListener
 387         virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
 388
 389         // XDragGestureListener
 390         virtual void SAL_CALL dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& rDGE ) override;
 391
 392     public:
 393
 394         DragGestureListener( DragSourceHelper& rDragSourceHelper );
 395         virtual ~DragGestureListener() override;
 396     };
 397
 398     friend class DragSourceHelper::DragGestureListener;
 399
 400 private:
 401     osl::Mutex                                                            maMutex;
 402     css::uno::Reference< css::datatransfer::dnd::XDragGestureRecognizer > mxDragGestureRecognizer;
 403
 404     css::uno::Reference< css::datatransfer::dnd::XDragGestureListener >   mxDragGestureListener;
 405
 406     DragSourceHelper&   operator=( const DragSourceHelper& rDragSourceHelper ) = delete;
 407     bool                operator==( const DragSourceHelper& rDragSourceHelper ) const = delete;
 408
 409 public:
 410
 411                         // to be overridden by the application
 412     virtual void        StartDrag( sal_Int8 nAction, const Point& rPosPixel );
 413
 414                         DragSourceHelper( vcl::Window* pWindow );
 415     void                dispose();
 416     virtual             ~DragSourceHelper();
 417 };
 418
 419 class VCL_DLLPUBLIC DropTargetHelper
 420 {
 421 private:
 422
 423     // nested class to implement the XDropTargetListener interface
 424     class SAL_DLLPRIVATE DropTargetListener : public cppu::WeakImplHelper< css::datatransfer::dnd::XDropTargetListener >
 425     {
 426     private:
 427
 428         DropTargetHelper&                  mrParent;
 429         std::unique_ptr<AcceptDropEvent>   mpLastDragOverEvent;
 430
 431         // XEventListener
 432         virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
 433
 434         // XDropTargetListener
 435         virtual void SAL_CALL drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) override;
 436         virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;
 437         virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DropTargetEvent& dte ) override;
 438         virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
 439         virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
 440
 441     public:
 442
 443         DropTargetListener( DropTargetHelper& rDropTargetHelper );
 444         virtual ~DropTargetListener() override;
 445     };
 446
 447     friend class DropTargetHelper::DropTargetListener;
 448
 449 private:
 450     osl::Mutex                                                            maMutex;
 451     css::uno::Reference< css::datatransfer::dnd::XDropTarget >            mxDropTarget;
 452
 453     css::uno::Reference< css::datatransfer::dnd::XDropTargetListener >    mxDropTargetListener;
 454     DataFlavorExVector                                                    maFormats;
 455
 456                         DropTargetHelper() = delete;
 457     DropTargetHelper&   operator=( const DropTargetHelper& rDropTargetHelper ) = delete;
 458     bool                operator==( const DropTargetHelper& rDropTargetHelper ) const = delete;
 459
 460     void                ImplConstruct();
 461
 462                         // called by our own implementation of XDropTargetListener (DropTargetListener instance)
 463     void                ImplBeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors );
 464     void                ImplEndDrag();
 465
 466 public:
 467
 468                         // to be overridden by the application
 469     virtual sal_Int8    AcceptDrop( const AcceptDropEvent& rEvt );
 470     virtual sal_Int8    ExecuteDrop( const ExecuteDropEvent& rEvt );
 471
 472                         DropTargetHelper( vcl::Window* pWindow );
 473                         DropTargetHelper( const css::uno::Reference< css::datatransfer::dnd::XDropTarget >& rxDropTarget );
 474
 475     void                dispose();
 476     virtual             ~DropTargetHelper();
 477
 478                         // typically called by the application in ::AcceptDrop and ::ExecuteDrop and (see above)
 479     bool                IsDropFormatSupported(SotClipboardFormatId nFormat) const;
 480
 481     const DataFlavorExVector& GetDataFlavorExVector() const {return maFormats; }
 482
 483 };
 484
 485 struct TransferDataContainer_Impl;
 486
 487 class VCL_DLLPUBLIC TransferDataContainer : public TransferableHelper
 488 {
 489     std::unique_ptr<TransferDataContainer_Impl> pImpl;
 490
 491     virtual void        AddSupportedFormats() override;
 492     virtual bool        GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) override;
 493
 494 public:
 495
 496                         TransferDataContainer();
 497                         virtual ~TransferDataContainer() override;
 498
 499     void                CopyINetBookmark( const INetBookmark& rBkmk );
 500     void                CopyString( const OUString& rStr );
 501     void                CopyString( SotClipboardFormatId nFmt, const OUString& rStr );
 502
 503     void                CopyByteString( SotClipboardFormatId nFormatId, const OString& rStr );
 504     void                CopyAnyData( SotClipboardFormatId nFormatId, const char* pData, sal_uLong nLen );
 505
 506     bool                HasAnyData() const;
 507
 508     using TransferableHelper::StartDrag;
 509     void                StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions,
 510                                    const Link<sal_Int8,void>& rCallbck );
 511     virtual void        DragFinished( sal_Int8 nDropAction ) override;
 512 };
 513
 514 css::uno::Reference<css::datatransfer::clipboard::XClipboard> VCL_DLLPUBLIC GetSystemClipboard();
 515 css::uno::Reference<css::datatransfer::clipboard::XClipboard> VCL_DLLPUBLIC GetSystemPrimarySelection();
 516
 517 #endif
 518
 519 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */