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 <tools/link.hxx>
  27 #include <tools/ref.hxx>
  28 #include <sot/formats.hxx>
  29 #include <cppuhelper/implbase1.hxx>
  30 #include <cppuhelper/implbase4.hxx>
  31 #include <com/sun/star/frame/XTerminateListener.hpp>
  32 #include <com/sun/star/lang/XUnoTunnel.hpp>
  33 #include <com/sun/star/datatransfer/XTransferable2.hpp>
  34 #include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
  35 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  36 #include <com/sun/star/datatransfer/dnd/XDragGestureRecognizer.hpp>
  37 #include <com/sun/star/datatransfer/dnd/XDropTarget.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 <com/sun/star/io/XInputStream.hpp>
  44
  45 class BitmapEx;
  46 class GDIMetaFile;
  47 class Graphic;
  48 class ImageMap;
  49 class INetBookmark;
  50 class INetImage;
  51 class FileList;
  52 class SotStorageStream;
  53 struct DataFlavorExVector;
  54 namespace vcl { class Window; }
  55
  56 // Drag&Drop defines
  57
  58 #define DND_ACTION_NONE     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_NONE
  59 #define DND_ACTION_COPY     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_COPY
  60 #define DND_ACTION_MOVE     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_MOVE
  61 #define DND_ACTION_COPYMOVE ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_COPY_OR_MOVE
  62 #define DND_ACTION_LINK     ::com::sun::star::datatransfer::dnd::DNDConstants::ACTION_LINK
  63
  64 #define DND_POINTER_NONE    0
  65 #define DND_IMAGE_NONE      0
  66
  67 struct TransferableObjectDescriptor
  68 {
  69     SvGlobalName        maClassName;
  70     sal_uInt16          mnViewAspect;
  71     Point               maDragStartPos;
  72     Size                maSize;
  73     sal_uInt32          mnOle2Misc;
  74     OUString            maTypeName;
  75     OUString            maDisplayName;
  76     bool                mbCanLink;
  77
  78     TransferableObjectDescriptor()
  79         : mnViewAspect(::com::sun::star::embed::Aspects::MSOLE_CONTENT)
  80         , mnOle2Misc(0)
  81         , mbCanLink(false)
  82     {}
  83
  84     SVT_DLLPUBLIC friend SvStream&  WriteTransferableObjectDescriptor( SvStream& rOStm, const TransferableObjectDescriptor& rObjDesc );
  85 };
  86
  87 struct AcceptDropEvent
  88 {
  89     sal_Int8                                                        mnAction;
  90     Point                                                           maPosPixel;
  91     const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent  maDragEvent;
  92     bool                                                            mbLeaving;
  93     bool                                                            mbDefault;
  94
  95     AcceptDropEvent() :
  96         mnAction( DND_ACTION_NONE ),
  97         mbLeaving( false ),
  98         mbDefault( false ) {}
  99
 100     AcceptDropEvent( sal_Int8 nAction,
 101                      const Point& rPosPixel,
 102                      const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent& rDragEvent,
 103                      bool bLeaving = false ) :
 104         mnAction( nAction ),
 105         maPosPixel( rPosPixel ),
 106         maDragEvent( rDragEvent ),
 107         mbLeaving( bLeaving ),
 108         mbDefault( false ) {}
 109 };
 110
 111 struct ExecuteDropEvent
 112 {
 113     sal_Int8                                                        mnAction;
 114     Point                                                           maPosPixel;
 115     const ::com::sun::star::datatransfer::dnd::DropTargetDropEvent  maDropEvent;
 116     bool                                                            mbDefault;
 117
 118     ExecuteDropEvent() :
 119         mnAction( DND_ACTION_NONE ),
 120         mbDefault( false ) {}
 121
 122     ExecuteDropEvent( sal_Int8 nAction,
 123                       const Point& rPosPixel,
 124                       const ::com::sun::star::datatransfer::dnd::DropTargetDropEvent& rDropEvent ) :
 125         mnAction( nAction ),
 126         maPosPixel( rPosPixel ),
 127         maDropEvent( rDropEvent ),
 128         mbDefault( false ) {}
 129 };
 130
 131 class SVT_DLLPUBLIC TransferableHelper : public ::cppu::WeakImplHelper4< ::com::sun::star::datatransfer::XTransferable2,
 132                                                            ::com::sun::star::datatransfer::clipboard::XClipboardOwner,
 133                                                            ::com::sun::star::datatransfer::dnd::XDragSourceListener,
 134                                                            ::com::sun::star::lang::XUnoTunnel >
 135 {
 136 private:
 137
 138     // nested class to implement the XTerminateListener interface
 139     class TerminateListener : public ::cppu::WeakImplHelper1< ::com::sun::star::frame::XTerminateListener >
 140     {
 141     private:
 142
 143         TransferableHelper& mrParent;
 144
 145     private:
 146
 147         // XEventListener
 148         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
 149
 150         // XTerminateListener
 151         virtual void SAL_CALL queryTermination( const ::com::sun::star::lang::EventObject& aEvent ) throw( ::com::sun::star::frame::TerminationVetoException, ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
 152         virtual void SAL_CALL notifyTermination( const ::com::sun::star::lang::EventObject& aEvent ) throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
 153
 154     public:
 155
 156                               TerminateListener( TransferableHelper& rDropTargetHelper );
 157         virtual               ~TerminateListener();
 158     };
 159
 160     friend class TransferableHelper::TerminateListener;
 161
 162 private:
 163
 164     ::com::sun::star::uno::Any                                                                          maAny;
 165     OUString                                                                                     maLastFormat;
 166     mutable ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >   mxClipboard;
 167     ::com::sun::star::uno::Reference< ::com::sun::star::frame::XTerminateListener >                     mxTerminateListener;
 168     DataFlavorExVector*                                                                                 mpFormats;
 169     TransferableObjectDescriptor*                                                                       mpObjDesc;
 170
 171 protected:
 172     inline const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >&
 173         getOwnClipboard() const { return mxClipboard; }
 174
 175 private:
 176
 177     // XTransferable
 178     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, std::exception) SAL_OVERRIDE;
 179     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::datatransfer::DataFlavor > SAL_CALL getTransferDataFlavors() throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 180     virtual sal_Bool SAL_CALL isDataFlavorSupported( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 181
 182     // Transferable2
 183     virtual css::uno::Any SAL_CALL getTransferData2(
 184         const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc )
 185             throw (css::datatransfer::UnsupportedFlavorException, css::io::IOException, css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 186
 187     // XEventListener
 188     virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 189
 190     // XDragSourceListener
 191     virtual void SAL_CALL dragDropEnd( const ::com::sun::star::datatransfer::dnd::DragSourceDropEvent& dsde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 192     virtual void SAL_CALL dragEnter( const ::com::sun::star::datatransfer::dnd::DragSourceDragEvent& dsde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 193     virtual void SAL_CALL dragExit( const ::com::sun::star::datatransfer::dnd::DragSourceEvent& dse ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 194     virtual void SAL_CALL dragOver( const ::com::sun::star::datatransfer::dnd::DragSourceDragEvent& dsde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 195     virtual void SAL_CALL dropActionChanged( const ::com::sun::star::datatransfer::dnd::DragSourceDragEvent& dsde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 196
 197 private:
 198
 199     // XClipboardOwner
 200     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, std::exception) SAL_OVERRIDE;
 201
 202 protected:
 203     // derivees need to access lostOwnership in case hey override it
 204     // on windows, changing the access rights to a method gives unresolved externals, so we introduce
 205     // this impl-method here 'til the next incompatible update
 206     inline  void    implCallOwnLostOwnership(
 207                         const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >& _rxClipboard,
 208                         const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTrans
 209                     )
 210             {
 211                 TransferableHelper::lostOwnership( _rxClipboard, _rxTrans );
 212             }
 213
 214
 215 private:
 216
 217     SVT_DLLPRIVATE void             ImplFlush();
 218
 219 protected:
 220
 221     virtual             ~TransferableHelper();
 222
 223     void                AddFormat( SotClipboardFormatId nFormat );
 224     void                AddFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 225     void                RemoveFormat( SotClipboardFormatId nFormat );
 226     void                RemoveFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 227     bool                HasFormat( SotClipboardFormatId nFormat );
 228     inline bool         HasFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) { return isDataFlavorSupported( rFlavor ); }
 229     void                ClearFormats();
 230
 231     bool               SetAny( const ::com::sun::star::uno::Any& rAny, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 232     bool               SetString( const OUString& rString, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 233     bool               SetBitmapEx( const BitmapEx& rBitmap, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 234     bool               SetGDIMetaFile( const GDIMetaFile& rMtf, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 235     bool               SetGraphic( const Graphic& rGraphic, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 236     bool               SetImageMap( const ImageMap& rIMap, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 237     bool               SetTransferableObjectDescriptor( const TransferableObjectDescriptor& rDesc, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 238     bool               SetINetBookmark( const INetBookmark& rBmk, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 239     bool               SetINetImage( const INetImage& rINtImg, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 240     bool               SetObject( void* pUserObject, SotClipboardFormatId nUserObjectId, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 241
 242 protected:
 243
 244     virtual void        AddSupportedFormats() = 0;
 245     virtual bool        GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) = 0;
 246     virtual bool        WriteObject( tools::SvRef<SotStorageStream>& rxOStm, void* pUserObject, SotClipboardFormatId nUserObjectId, const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 247     virtual void        DragFinished( sal_Int8 nDropAction );
 248     virtual void        ObjectReleased();
 249
 250 public:
 251
 252                         TransferableHelper();
 253
 254     void                PrepareOLE( const TransferableObjectDescriptor& rObjDesc );
 255
 256     void                CopyToClipboard( vcl::Window *pWindow ) const;
 257     void                CopyToSelection( vcl::Window *pWindow ) const;
 258     void                StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions,
 259                                    sal_Int32 nDragPointer = DND_POINTER_NONE,
 260                                    sal_Int32 nDragImage = DND_IMAGE_NONE );
 261
 262     static void         ClearSelection( vcl::Window *pWindow );
 263
 264     static ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard > GetSystemClipboard();
 265     static const ::com::sun::star::uno::Sequence< sal_Int8 >& getUnoTunnelId();
 266
 267 public:
 268
 269     virtual sal_Int64 SAL_CALL getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& rId ) throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
 270 };
 271
 272 struct TransferableDataHelper_Impl;
 273
 274 class SVT_DLLPUBLIC TransferableDataHelper
 275 {
 276     friend class DropTargetHelper;
 277
 278 private:
 279
 280     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >           mxTransfer;
 281     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >   mxClipboard;
 282     DataFlavorExVector*                                                                         mpFormats;
 283     TransferableObjectDescriptor*                                                               mpObjDesc;
 284     TransferableDataHelper_Impl*                                                                mpImpl;
 285
 286 protected:
 287     void                        InitFormats();
 288
 289 public:
 290
 291     static void                 FillDataFlavorExVector( const ::com::sun::star::uno::Sequence< ::com::sun::star::datatransfer::DataFlavor >& rDataFlavorSeq,
 292                                                         DataFlavorExVector& rDataFlavorExVector );
 293
 294                                 TransferableDataHelper();
 295                                 TransferableDataHelper( const TransferableDataHelper& rDataHelper );
 296                                 TransferableDataHelper( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& rxTransferable );
 297                                 ~TransferableDataHelper();
 298
 299     TransferableDataHelper&     operator=( const TransferableDataHelper& rDataHelper );
 300
 301     const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >&    GetTransferable() const { return mxTransfer; }
 302     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >           GetXTransferable() const;
 303
 304     bool                        HasFormat( SotClipboardFormatId nFormat ) const;
 305     bool                        HasFormat( const ::com::sun::star::datatransfer::DataFlavor& rFlavor ) const;
 306
 307     sal_uInt32                  GetFormatCount() const;
 308
 309     SotClipboardFormatId                           GetFormat( sal_uInt32 nFormat ) const;
 310     ::com::sun::star::datatransfer::DataFlavor  GetFormatDataFlavor( sal_uInt32 nFormat ) const;
 311
 312     DataFlavorExVector&         GetDataFlavorExVector() const {return *mpFormats; }
 313
 314     bool                        StartClipboardListening( );
 315     void                        StopClipboardListening( );
 316
 317     void                        Rebind( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxNewData );
 318
 319 public:
 320
 321     css::uno::Any GetAny( SotClipboardFormatId nFormat, const OUString& rDestDoc ) const;
 322     css::uno::Any GetAny( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) const;
 323
 324     bool                        GetString( SotClipboardFormatId nFormat, OUString& rStr );
 325     bool                        GetString( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, OUString& rStr );
 326
 327     bool                        GetBitmapEx( SotClipboardFormatId nFormat, BitmapEx& rBmp );
 328     bool                        GetBitmapEx( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, BitmapEx& rBmp );
 329
 330     /** Return as GDI metafile.
 331
 332         @param nMaxAction Allows you to limit the amount of actions; defaults to 0 which means no limit.
 333
 334         Whet you eg. Ctrl+a in Excel, you can get the entire sheet as
 335         metafile, with over 3 million (!) actions; which is just too large for
 336         any reasonable handling - and you need to set a limit.
 337     */
 338     bool                        GetGDIMetaFile( SotClipboardFormatId nFormat, GDIMetaFile& rMtf, size_t nMaxActions = 0 );
 339     bool                        GetGDIMetaFile( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, GDIMetaFile& rMtf );
 340
 341     bool                        GetGraphic( SotClipboardFormatId nFormat, Graphic& rGraphic );
 342     bool                        GetGraphic( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, Graphic& rGraphic );
 343
 344     bool                        GetImageMap( SotClipboardFormatId nFormat, ImageMap& rIMap );
 345     bool                        GetImageMap( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, ImageMap& rImap );
 346
 347     bool                        GetTransferableObjectDescriptor( SotClipboardFormatId nFormat, TransferableObjectDescriptor& rDesc );
 348     bool                        GetTransferableObjectDescriptor( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, TransferableObjectDescriptor& rDesc );
 349
 350     bool                        GetINetBookmark( SotClipboardFormatId nFormat, INetBookmark& rBmk );
 351     bool                        GetINetBookmark( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, INetBookmark& rBmk );
 352
 353     bool                        GetINetImage( SotClipboardFormatId nFormat, INetImage& rINtImg );
 354     bool                        GetINetImage( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, INetImage& rINtImg );
 355
 356     bool                        GetFileList( SotClipboardFormatId nFormat, FileList& rFileList );
 357     bool                        GetFileList( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, FileList& rFileList );
 358
 359     css::uno::Sequence<sal_Int8> GetSequence( SotClipboardFormatId nFormat, const OUString& rDestDoc );
 360     css::uno::Sequence<sal_Int8> GetSequence( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc );
 361
 362     bool                        GetSotStorageStream( SotClipboardFormatId nFormat, tools::SvRef<SotStorageStream>& rStreamRef );
 363     bool                        GetSotStorageStream( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, tools::SvRef<SotStorageStream>& rStreamRef );
 364
 365     css::uno::Reference<css::io::XInputStream> GetInputStream( SotClipboardFormatId nFormat, const OUString& rDestDoc );
 366     css::uno::Reference<css::io::XInputStream> GetInputStream( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc );
 367
 368     bool                        GetInterface( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rIf );
 369
 370 public:
 371
 372     static TransferableDataHelper   CreateFromSystemClipboard( vcl::Window * pWindow );
 373     static TransferableDataHelper   CreateFromSelection( vcl::Window * pWindow );
 374     static bool                     IsEqual( const ::com::sun::star::datatransfer::DataFlavor& rInternalFlavor,
 375                                              const ::com::sun::star::datatransfer::DataFlavor& rRequestFlavor,
 376                                              bool bCompareParameters = false );
 377 };
 378
 379 class SVT_DLLPUBLIC DragSourceHelper
 380 {
 381 private:
 382
 383     // nested class to implement the XDragGestureListener interface
 384     class DragGestureListener : public ::cppu::WeakImplHelper1< ::com::sun::star::datatransfer::dnd::XDragGestureListener >
 385     {
 386     private:
 387
 388         DragSourceHelper&   mrParent;
 389
 390     private:
 391
 392         // XEventListener
 393         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 394
 395         // XDragGestureListener
 396         virtual void SAL_CALL dragGestureRecognized( const ::com::sun::star::datatransfer::dnd::DragGestureEvent& rDGE ) throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE;
 397
 398     public:
 399
 400         DragGestureListener( DragSourceHelper& rDragSourceHelper );
 401         virtual ~DragGestureListener();
 402     };
 403
 404     friend class DragSourceHelper::DragGestureListener;
 405
 406 private:
 407
 408     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDragGestureRecognizer > mxDragGestureRecognizer;
 409     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDragGestureListener >   mxDragGestureListener;
 410
 411     DragSourceHelper&   operator=( const DragSourceHelper& rDragSourceHelper ) SAL_DELETED_FUNCTION;
 412     bool                operator==( const DragSourceHelper& rDragSourceHelper ) const SAL_DELETED_FUNCTION;
 413
 414 public:
 415
 416                         // to be overridden by the application
 417     virtual void        StartDrag( sal_Int8 nAction, const Point& rPosPixel );
 418
 419                         DragSourceHelper( vcl::Window* pWindow );
 420     virtual             ~DragSourceHelper();
 421 };
 422
 423 class SVT_DLLPUBLIC DropTargetHelper
 424 {
 425 private:
 426
 427     // nested class to implement the XDropTargetListener interface
 428     class DropTargetListener : public ::cppu::WeakImplHelper1< ::com::sun::star::datatransfer::dnd::XDropTargetListener >
 429     {
 430     private:
 431
 432         DropTargetHelper&   mrParent;
 433         AcceptDropEvent*    mpLastDragOverEvent;
 434
 435     private:
 436
 437         // XEventListener
 438         virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 439
 440         // XDropTargetListener
 441         virtual void SAL_CALL drop( const ::com::sun::star::datatransfer::dnd::DropTargetDropEvent& dtde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 442         virtual void SAL_CALL dragEnter( const ::com::sun::star::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 443         virtual void SAL_CALL dragExit( const ::com::sun::star::datatransfer::dnd::DropTargetEvent& dte ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 444         virtual void SAL_CALL dragOver( const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent& dtde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 445         virtual void SAL_CALL dropActionChanged( const ::com::sun::star::datatransfer::dnd::DropTargetDragEvent& dtde ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 446
 447     public:
 448
 449         DropTargetListener( DropTargetHelper& rDropTargetHelper );
 450         virtual ~DropTargetListener();
 451     };
 452
 453     friend class DropTargetHelper::DropTargetListener;
 454
 455 private:
 456
 457     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDropTarget >            mxDropTarget;
 458     ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDropTargetListener >    mxDropTargetListener;
 459     DataFlavorExVector*                                                                             mpFormats;
 460
 461                         DropTargetHelper() SAL_DELETED_FUNCTION;
 462     DropTargetHelper&   operator=( const DropTargetHelper& rDropTargetHelper ) SAL_DELETED_FUNCTION;
 463     bool                operator==( const DropTargetHelper& rDropTargetHelper ) const SAL_DELETED_FUNCTION;
 464
 465     void                ImplConstruct();
 466
 467                         // called by our own implementation of XDropTargetListener (DropTargetListener instance)
 468     void                ImplBeginDrag( const ::com::sun::star::uno::Sequence< ::com::sun::star::datatransfer::DataFlavor >& rSupportedDataFlavors );
 469     void                ImplEndDrag();
 470
 471 public:
 472
 473                         // to be overridden by the application
 474     virtual sal_Int8    AcceptDrop( const AcceptDropEvent& rEvt );
 475     virtual sal_Int8    ExecuteDrop( const ExecuteDropEvent& rEvt );
 476
 477                         DropTargetHelper( vcl::Window* pWindow );
 478                         DropTargetHelper( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::dnd::XDropTarget >& rxDropTarget );
 479
 480     virtual             ~DropTargetHelper();
 481
 482                         // typically called by the application in ::AcceptDrop and ::ExecuteDrop and (see above)
 483     bool                IsDropFormatSupported( SotClipboardFormatId nFormat );
 484     bool                IsDropFormatSupported( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
 485
 486     DataFlavorExVector& GetDataFlavorExVector() const {return *mpFormats; }
 487
 488 };
 489
 490 struct TransferDataContainer_Impl;
 491
 492 class SVT_DLLPUBLIC TransferDataContainer : public TransferableHelper
 493 {
 494     TransferDataContainer_Impl* pImpl;
 495
 496 protected:
 497
 498     virtual void        AddSupportedFormats() SAL_OVERRIDE;
 499     virtual bool        GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) SAL_OVERRIDE;
 500     virtual void        DragFinished( sal_Int8 nDropAction ) SAL_OVERRIDE;
 501
 502 public:
 503
 504                         TransferDataContainer();
 505                         virtual ~TransferDataContainer();
 506
 507     void                CopyINetBookmark( const INetBookmark& rBkmk );
 508     void                CopyINetImage( const INetImage& rINtImg );
 509     void                CopyImageMap( const ImageMap& rImgMap );
 510     void                CopyGraphic( const Graphic& rGrf );
 511     void                CopyString( const OUString& rStr );
 512     void                CopyString( SotClipboardFormatId nFmt, const OUString& rStr );
 513     void                CopyAny( SotClipboardFormatId nFmt, const ::com::sun::star::uno::Any& rAny );
 514
 515     void                CopyByteString( SotClipboardFormatId nFormatId, const OString& rStr );
 516     void                CopyAnyData( SotClipboardFormatId nFormatId, const sal_Char* pData, sal_uLong nLen );
 517
 518     bool                HasAnyData() const;
 519
 520     using TransferableHelper::StartDrag;
 521     void                StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions,
 522                                    const Link<>& rCallbck,
 523                                    sal_Int32 nDragPointer = DND_POINTER_NONE,
 524                                    sal_Int32 nDragImage = DND_IMAGE_NONE );
 525 };
 526
 527 #endif
 528
 529 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */