include/svtools/transfer.hxx

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   9  * This file incorporates work covered by the following license notice:
  10  *
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  12  *   contributor license agreements. See the NOTICE file distributed
  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_SVTOOLS_TRANSFER_HXX
  21 #define INCLUDED_SVTOOLS_TRANSFER_HXX
  22
  23 #include <svtools/svtdllapi.h>
  24 #include <tools/globname.hxx>
  25 #include <tools/gen.hxx>
  26 #include <sot/formats.hxx>
  27 #include <cppuhelper/implbase1.hxx>
  28 #include <cppuhelper/implbase4.hxx>
  29 #include <com/sun/star/frame/XTerminateListener.hpp>
  30 #include <com/sun/star/lang/XUnoTunnel.hpp>
  31 #include <com/sun/star/datatransfer/XTransferable.hpp>
  32 #include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
  33 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  34 #include <com/sun/star/datatransfer/dnd/XDragGestureRecognizer.hpp>
  35 #include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
  36 #include <com/sun/star/datatransfer/dnd/DropTargetDragEvent.hpp>
  37 #include <com/sun/star/datatransfer/dnd/DropTargetDropEvent.hpp>
  38 #include <com/sun/star/datatransfer/dnd/XDragSourceListener.hpp>
  39 #include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
  40 #include <com/sun/star/embed/Aspects.hpp>
  41 #include <com/sun/star/io/XInputStream.hpp>
  42
  43 class BitmapEx;
  44 class GDIMetaFile;
  45 class Graphic;
  46 class ImageMap;
  47 class SotStorageStreamRef;
  48 class INetBookmark;
  49 class INetImage;
  50 class FileList;
  51 class Window;
  52 class Link;
  53
  54 // Drag&Drop defines
  55
  56 #define DND_ACTION_NONE     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_NONE
  57 #define DND_ACTION_COPY     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_COPY
  58 #define DND_ACTION_MOVE     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_MOVE
  59 #define DND_ACTION_COPYMOVE ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_COPY_OR_MOVE
  60 #define DND_ACTION_LINK     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_LINK
  61
  62 #define DND_POINTER_NONE    0
  63 #define DND_IMAGE_NONE      0
  64
  65 struct TransferableObjectDescriptor
  66 {
  67     SvGlobalName        maClassName;
  68     sal_uInt16          mnViewAspect;
  69     Point               maDragStartPos;
  70     Size                maSize;
  71     sal_uInt32          mnOle2Misc;
  72     OUString            maTypeName;
  73     OUString            maDisplayName;
  74     sal_Bool            mbCanLink;
  75
  76     TransferableObjectDescriptor()
  77         : mnViewAspect(::com::sun::star::embed::Aspects::MSOLE_CONTENT)
  78         , mnOle2Misc(0)
  79         , mbCanLink(false)
  80     {}
  81
  82     SVT_DLLPUBLIC friend SvStream&  operator>>( SvStream& rIStm, TransferableObjectDescriptor& rObjDesc );
  83     SVT_DLLPUBLIC friend SvStream&  operator<<( SvStream& rOStm, const TransferableObjectDescriptor& rObjDesc );
  84 };
  85
  86 struct AcceptDropEvent
  87 {
  88     sal_Int8                                                        mnAction;
  89     Point                                                           maPosPixel;
  90     const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent  maDragEvent;
  91     sal_Bool                                                        mbLeaving;
  92     sal_Bool                                                        mbDefault;
  93
  94     AcceptDropEvent() :
  95         mnAction( DND_ACTION_NONE ),
  96         mbLeaving( sal_False ),
  97         mbDefault( sal_False ) {}
  98
  99     AcceptDropEvent( sal_Int8 nAction,
 100                      const Point& rPosPixel,
 101                      const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent& rDragEvent,
 102                      sal_Bool bLeaving = sal_False ) :
 103         mnAction( nAction ),
 104         maPosPixel( rPosPixel ),
 105         maDragEvent( rDragEvent ),
 106         mbLeaving( bLeaving ),
 107         mbDefault( sal_False ) {}
 108 };
 109
 110 struct ExecuteDropEvent
 111 {
 112     sal_Int8                                                        mnAction;
 113     Point                                                           maPosPixel;
 114     const ::com::sun::star::datatransfer::dnd::DropTargetDropEvent  maDropEvent;
 115     sal_Bool                                                        mbDefault;
 116
 117     ExecuteDropEvent() :
 118         mnAction( DND_ACTION_NONE ),
 119         mbDefault( sal_False ) {}
 120
 121     ExecuteDropEvent( sal_Int8 nAction,
 122                       const Point& rPosPixel,
 123                       const ::com::sun::star::datatransfer::dnd::DropTargetDropEvent& rDropEvent ) :
 124         mnAction( nAction ),
 125         maPosPixel( rPosPixel ),
 126         maDropEvent( rDropEvent ),
 127         mbDefault( sal_False ) {}
 128 };
 129
 130 class SVT_DLLPUBLIC TransferableHelper : public ::cppu::WeakImplHelper4< ::com::sun::star::datatransfer::XTransferable,
 131                                                            ::com::sun::star::datatransfer::clipboard::XClipboardOwner,
 132                                                            ::com::sun::star::datatransfer::dnd::XDragSourceListener,
 133                                                            ::com::sun::star::lang::XUnoTunnel >
 134 {
 135 private:
 136
 137     // nested class to implement the XTerminateListener interface
 138     class TerminateListener : public ::cppu::WeakImplHelper1< ::com::sun::star::frame::XTerminateListener >
 139     {
 140     private:
 141
 142         TransferableHelper& mrParent;
 143
 144     private:
 145
 146         // XEventListener
 147         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException );
 148
 149         // XTerminateListener
 150         virtual void SAL_CALL queryTermination( const ::com::sun::star::lang::EventObject& aEvent ) throw( ::com::sun::star::frame::TerminationVetoException, ::com::sun::star::uno::RuntimeException );
 151         virtual void SAL_CALL notifyTermination( const ::com::sun::star::lang::EventObject& aEvent ) throw( ::com::sun::star::uno::RuntimeException );
 152
 153     public:
 154
 155                               TerminateListener( TransferableHelper& rDropTargetHelper );
 156         virtual               ~TerminateListener();
 157     };
 158
 159     friend class TransferableHelper::TerminateListener;
 160
 161 private:
 162
 163     ::com::sun::star::uno::Any                                                                          maAny;
 164     OUString                                                                                     maLastFormat;
 165     mutable ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >   mxClipboard;
 166     ::com::sun::star::uno::Reference< ::com::sun::star::frame::XTerminateListener >                     mxTerminateListener;
 167     DataFlavorExVector*                                                                                 mpFormats;
 168     TransferableObjectDescriptor*                                                                       mpObjDesc;
 169
 170 protected:
 171     inline const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >&
 172         getOwnClipboard() const { return mxClipboard; }
 173
 174 private:
 175
 176     // XTransferable
 177     virtual ::com::sun::star::uno::Any SAL_CALL getTransferData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) throw(::com::sun::star::datatransfer::UnsupportedFlavorException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
 178     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::datatransfer::DataFlavor > SAL_CALL getTransferDataFlavors() throw(::com::sun::star::uno::RuntimeException);
 179     virtual sal_Bool SAL_CALL isDataFlavorSupported( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) throw(::com::sun::star::uno::RuntimeException);
 180
 181     // XEventListener
 182     virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw(::com::sun::star::uno::RuntimeException);
 183
 184     // XDragSourceListener
 185     virtual void SAL_CALL dragDropEnd( const ::com::sun::star::datatransfer::dnd::DragSourceDropEvent& dsde ) throw(::com::sun::star::uno::RuntimeException);
 186     virtual void SAL_CALL dragEnter( const ::com::sun::star::datatransfer::dnd::DragSourceDragEvent& dsde ) throw(::com::sun::star::uno::RuntimeException);
 187     virtual void SAL_CALL dragExit( const ::com::sun::star::datatransfer::dnd::DragSourceEvent& dse ) throw(::com::sun::star::uno::RuntimeException);
 188     virtual void SAL_CALL dragOver( const ::com::sun::star::datatransfer::dnd::DragSourceDragEvent& dsde ) throw(::com::sun::star::uno::RuntimeException);
 189     virtual void SAL_CALL dropActionChanged( const ::com::sun::star::datatransfer::dnd::DragSourceDragEvent& dsde ) throw(::com::sun::star::uno::RuntimeException);
 190
 191 private:
 192
 193     // XClipboardOwner
 194     virtual void SAL_CALL lostOwnership( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >& xClipboard, const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& xTrans ) throw(::com::sun::star::uno::RuntimeException);
 195
 196 protected:
 197     // derivees need to access lostOwnership in case hey override it
 198     // on windows, changing the access rights to a method gives unresolved externals, so we introduce
 199     // this impl-method here 'til the next incompatible update
 200     inline  void    implCallOwnLostOwnership(
 201                         const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >& _rxClipboard,
 202                         const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTrans
 203                     )
 204             {
 205                 TransferableHelper::lostOwnership( _rxClipboard, _rxTrans );
 206             }
 207
 208
 209 private:
 210
 211     SVT_DLLPRIVATE void             ImplFlush();
 212
 213 protected:
 214
 215     virtual             ~TransferableHelper();
 216
 217     void                AddFormat( SotFormatStringId nFormat );
 218     void                AddFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 219     void                RemoveFormat( SotFormatStringId nFormat );
 220     void                RemoveFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 221     sal_Bool            HasFormat( SotFormatStringId nFormat );
 222     inline sal_Bool     HasFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) { return isDataFlavorSupported( rFlavor ); }
 223     void                ClearFormats();
 224
 225     sal_Bool            SetAny( const ::com::sun::star::uno::Any& rAny, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 226     sal_Bool            SetString( const OUString& rString, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 227     sal_Bool            SetBitmapEx( const BitmapEx& rBitmap, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 228     sal_Bool            SetGDIMetaFile( const GDIMetaFile& rMtf, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 229     sal_Bool            SetGraphic( const Graphic& rGraphic, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 230     sal_Bool            SetImageMap( const ImageMap& rIMap, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 231     sal_Bool            SetTransferableObjectDescriptor( const TransferableObjectDescriptor& rDesc, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 232     sal_Bool            SetINetBookmark( const INetBookmark& rBmk, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 233     sal_Bool            SetINetImage( const INetImage& rINtImg, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 234     sal_Bool            SetObject( void* pUserObject, sal_uInt32 nUserObjectId, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 235
 236 protected:
 237
 238     virtual void        AddSupportedFormats() = 0;
 239     virtual sal_Bool    GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) = 0;
 240     virtual sal_Bool    WriteObject( SotStorageStreamRef& rxOStm, void* pUserObject, sal_uInt32 nUserObjectId, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 241     virtual void        DragFinished( sal_Int8 nDropAction );
 242     virtual void        ObjectReleased();
 243
 244 public:
 245
 246                         TransferableHelper();
 247
 248     void                PrepareOLE( const TransferableObjectDescriptor& rObjDesc );
 249
 250     void                CopyToClipboard( Window *pWindow ) const;
 251     void                CopyToSelection( Window *pWindow ) const;
 252     void                StartDrag( Window* pWindow, sal_Int8 nDragSourceActions,
 253                                    sal_Int32 nDragPointer = DND_POINTER_NONE,
 254                                    sal_Int32 nDragImage = DND_IMAGE_NONE );
 255
 256     static void         ClearSelection( Window *pWindow );
 257
 258     static ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard > GetSystemClipboard();
 259     static const ::com::sun::star::uno::Sequence< sal_Int8 >& getUnoTunnelId();
 260
 261 public:
 262
 263     virtual sal_Int64 SAL_CALL getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& rId ) throw( ::com::sun::star::uno::RuntimeException );
 264 };
 265
 266 struct TransferableDataHelper_Impl;
 267
 268 class SVT_DLLPUBLIC TransferableDataHelper
 269 {
 270     friend class DropTargetHelper;
 271
 272 private:
 273
 274     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >           mxTransfer;
 275     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >   mxClipboard;
 276     DataFlavorExVector*                                                                         mpFormats;
 277     TransferableObjectDescriptor*                                                               mpObjDesc;
 278     TransferableDataHelper_Impl*                                                                mpImpl;
 279
 280 protected:
 281     void                        InitFormats();
 282
 283 public:
 284
 285     static void                 FillDataFlavorExVector( const ::com::sun::star::uno::Sequence< ::com::sun::star::datatransfer::DataFlavor >& rDataFlavorSeq,
 286                                                         DataFlavorExVector& rDataFlavorExVector );
 287
 288                                 TransferableDataHelper();
 289                                 TransferableDataHelper( const TransferableDataHelper& rDataHelper );
 290                                 TransferableDataHelper( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& rxTransferable );
 291                                 ~TransferableDataHelper();
 292
 293     TransferableDataHelper&     operator=( const TransferableDataHelper& rDataHelper );
 294
 295     const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >&    GetTransferable() const { return mxTransfer; }
 296     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >           GetXTransferable() const;
 297
 298     sal_Bool                    HasFormat( SotFormatStringId nFormat ) const;
 299     sal_Bool                    HasFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) const;
 300
 301     sal_uInt32                  GetFormatCount() const;
 302
 303     SotFormatStringId                           GetFormat( sal_uInt32 nFormat ) const;
 304     ::com::sun::star::datatransfer::DataFlavor  GetFormatDataFlavor( sal_uInt32 nFormat ) const;
 305
 306     DataFlavorExVector&         GetDataFlavorExVector() const {return *mpFormats; }
 307
 308     sal_Bool                    StartClipboardListening( );
 309     void                        StopClipboardListening( );
 310
 311     void                        Rebind( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxNewData );
 312
 313 public:
 314
 315     ::com::sun::star::uno::Any  GetAny( SotFormatStringId nFormat ) const;
 316     ::com::sun::star::uno::Any  GetAny( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) const;
 317
 318     sal_Bool                    GetString( SotFormatStringId nFormat, OUString& rStr );
 319     sal_Bool                    GetString( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, OUString& rStr );
 320
 321     sal_Bool                    GetBitmapEx( SotFormatStringId nFormat, BitmapEx& rBmp );
 322     sal_Bool                    GetBitmapEx( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, BitmapEx& rBmp );
 323
 324     sal_Bool                    GetGDIMetaFile( SotFormatStringId nFormat, GDIMetaFile& rMtf );
 325     sal_Bool                    GetGDIMetaFile( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, GDIMetaFile& rMtf );
 326
 327     sal_Bool                    GetGraphic( SotFormatStringId nFormat, Graphic& rGraphic );
 328     sal_Bool                    GetGraphic( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, Graphic& rGraphic );
 329
 330     sal_Bool                    GetImageMap( SotFormatStringId nFormat, ImageMap& rIMap );
 331     sal_Bool                    GetImageMap( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, ImageMap& rImap );
 332
 333     sal_Bool                    GetTransferableObjectDescriptor( SotFormatStringId nFormat, TransferableObjectDescriptor& rDesc );
 334     sal_Bool                    GetTransferableObjectDescriptor( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, TransferableObjectDescriptor& rDesc );
 335
 336     sal_Bool                    GetINetBookmark( SotFormatStringId nFormat, INetBookmark& rBmk );
 337     sal_Bool                    GetINetBookmark( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, INetBookmark& rBmk );
 338
 339     sal_Bool                    GetINetImage( SotFormatStringId nFormat, INetImage& rINtImg );
 340     sal_Bool                    GetINetImage( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, INetImage& rINtImg );
 341
 342     sal_Bool                    GetFileList( SotFormatStringId nFormat, FileList& rFileList );
 343     sal_Bool                    GetFileList( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, FileList& rFileList );
 344
 345     sal_Bool                    GetSequence( SotFormatStringId nFormat, ::com::sun::star::uno::Sequence< sal_Int8 >& rSeq );
 346     sal_Bool                    GetSequence( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, ::com::sun::star::uno::Sequence< sal_Int8 >& rSeq );
 347
 348     sal_Bool                    GetSotStorageStream( SotFormatStringId nFormat, SotStorageStreamRef& rStreamRef );
 349     sal_Bool                    GetSotStorageStream( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, SotStorageStreamRef& rStreamRef );
 350
 351     sal_Bool                    GetInputStream( SotFormatStringId nFormat, ::com::sun::star::uno::Reference < com::sun::star::io::XInputStream >& xStream );
 352     sal_Bool                    GetInputStream( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, ::com::sun::star::uno::Reference < com::sun::star::io::XInputStream >& xStream );
 353
 354     sal_Bool                    GetInterface( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rIf );
 355
 356 public:
 357
 358     static TransferableDataHelper   CreateFromSystemClipboard( Window * pWindow );
 359     static TransferableDataHelper   CreateFromSelection( Window * pWindow );
 360     static sal_Bool                 IsEqual( const ::com::sun::star::datatransfer::DataFlavor& rInternalFlavor,
 361                                              const ::com::sun::star::datatransfer::DataFlavor& rRequestFlavor,
 362                                              sal_Bool bCompareParameters = sal_False );
 363 };
 364
 365 class SVT_DLLPUBLIC DragSourceHelper
 366 {
 367 private:
 368
 369     // nested class to implement the XDragGestureListener interface
 370     class DragGestureListener : public ::cppu::WeakImplHelper1< ::com::sun::star::datatransfer::dnd::XDragGestureListener >
 371     {
 372     private:
 373
 374         DragSourceHelper&   mrParent;
 375
 376     private:
 377
 378         // XEventListener
 379         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw(::com::sun::star::uno::RuntimeException);
 380
 381         // XDragGestureListener
 382         virtual void SAL_CALL dragGestureRecognized( const ::com::sun::star::datatransfer::dnd::DragGestureEvent& rDGE ) throw( ::com::sun::star::uno::RuntimeException );
 383
 384     public:
 385
 386         DragGestureListener( DragSourceHelper& rDragSourceHelper );
 387         ~DragGestureListener();
 388     };
 389
 390     friend class DragSourceHelper::DragGestureListener;
 391
 392 private:
 393
 394     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDragGestureRecognizer > mxDragGestureRecognizer;
 395     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDragGestureListener >   mxDragGestureListener;
 396
 397                         // not available
 398                         DragSourceHelper();
 399     DragSourceHelper&   operator=( const DragSourceHelper& rDragSourceHelper );
 400     sal_Bool            operator==( const DragSourceHelper& rDragSourceHelper ) const;
 401
 402 public:
 403
 404                         // to be overridden by the application
 405     virtual void        StartDrag( sal_Int8 nAction, const Point& rPosPixel );
 406
 407                         DragSourceHelper( Window* pWindow );
 408     virtual             ~DragSourceHelper();
 409 };
 410
 411 class SVT_DLLPUBLIC DropTargetHelper
 412 {
 413 private:
 414
 415     // nested class to implement the XDropTargetListener interface
 416     class DropTargetListener : public ::cppu::WeakImplHelper1< ::com::sun::star::datatransfer::dnd::XDropTargetListener >
 417     {
 418     private:
 419
 420         DropTargetHelper&   mrParent;
 421         AcceptDropEvent*    mpLastDragOverEvent;
 422
 423     private:
 424
 425         // XEventListener
 426         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw(::com::sun::star::uno::RuntimeException);
 427
 428         // XDropTargetListener
 429         virtual void SAL_CALL drop( const ::com::sun::star::datatransfer::dnd::DropTargetDropEvent& dtde ) throw(::com::sun::star::uno::RuntimeException);
 430         virtual void SAL_CALL dragEnter( const ::com::sun::star::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) throw(::com::sun::star::uno::RuntimeException);
 431         virtual void SAL_CALL dragExit( const ::com::sun::star::datatransfer::dnd::DropTargetEvent& dte ) throw(::com::sun::star::uno::RuntimeException);
 432         virtual void SAL_CALL dragOver( const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent& dtde ) throw(::com::sun::star::uno::RuntimeException);
 433         virtual void SAL_CALL dropActionChanged( const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent& dtde ) throw(::com::sun::star::uno::RuntimeException);
 434
 435     public:
 436
 437         DropTargetListener( DropTargetHelper& rDropTargetHelper );
 438         ~DropTargetListener();
 439     };
 440
 441     friend class DropTargetHelper::DropTargetListener;
 442
 443 private:
 444
 445     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDropTarget >            mxDropTarget;
 446     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDropTargetListener >    mxDropTargetListener;
 447     DataFlavorExVector*                                                                             mpFormats;
 448
 449                         // not available
 450                         DropTargetHelper();
 451     DropTargetHelper&   operator=( const DropTargetHelper& rDropTargetHelper );
 452     sal_Bool            operator==( const DropTargetHelper& rDropTargetHelper ) const;
 453
 454     void                ImplConstruct();
 455
 456                         // called by our own implementation of XDropTargetListener (DropTargetListener instance)
 457     void                ImplBeginDrag( const ::com::sun::star::uno::Sequence< ::com::sun::star::datatransfer::DataFlavor >& rSupportedDataFlavors );
 458     void                ImplEndDrag();
 459
 460 public:
 461
 462                         // to be overridden by the application
 463     virtual sal_Int8    AcceptDrop( const AcceptDropEvent& rEvt );
 464     virtual sal_Int8    ExecuteDrop( const ExecuteDropEvent& rEvt );
 465
 466                         DropTargetHelper( Window* pWindow );
 467                         DropTargetHelper( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDropTarget >& rxDropTarget );
 468
 469     virtual             ~DropTargetHelper();
 470
 471                         // typically called by the application in ::AcceptDrop and ::ExecuteDrop and (see above)
 472     sal_Bool            IsDropFormatSupported( SotFormatStringId nFormat );
 473     sal_Bool            IsDropFormatSupported( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 474
 475     DataFlavorExVector& GetDataFlavorExVector() const {return *mpFormats; }
 476
 477 };
 478
 479 struct TransferDataContainer_Impl;
 480
 481 class SVT_DLLPUBLIC TransferDataContainer : public TransferableHelper
 482 {
 483     TransferDataContainer_Impl* pImpl;
 484
 485 protected:
 486
 487     virtual void        AddSupportedFormats();
 488     virtual sal_Bool    GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 489     virtual void        DragFinished( sal_Int8 nDropAction );
 490
 491 public:
 492
 493                         TransferDataContainer();
 494                         ~TransferDataContainer();
 495
 496     void                CopyINetBookmark( const INetBookmark& rBkmk );
 497     void                CopyINetImage( const INetImage& rINtImg );
 498     void                CopyImageMap( const ImageMap& rImgMap );
 499     void                CopyGraphic( const Graphic& rGrf );
 500     void                CopyString( const OUString& rStr );
 501     void                CopyString( sal_uInt16 nFmt, const OUString& rStr );
 502     void                CopyAny( sal_uInt16 nFmt, const ::com::sun::star::uno::Any& rAny );
 503
 504     void                CopyByteString( sal_uLong nFormatId, const OString& rStr );
 505     void                CopyAnyData( sal_uLong nFormatId, const sal_Char* pData, sal_uLong nLen );
 506
 507     sal_Bool            HasAnyData() const;
 508
 509     using TransferableHelper::StartDrag;
 510     void                StartDrag( Window* pWindow, sal_Int8 nDragSourceActions,
 511                                    const Link& rCallbck,
 512                                    sal_Int32 nDragPointer = DND_POINTER_NONE,
 513                                    sal_Int32 nDragImage = DND_IMAGE_NONE );
 514 };
 515
 516 #endif
 517
 518 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */