framework/source/classes/droptargetlistener.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_framework.hxx"
  30
  31 //_________________________________________________________________________________________________________________
  32 //  my own includes
  33 //_________________________________________________________________________________________________________________
  34 #include <classes/droptargetlistener.hxx>
  35 #include <threadhelp/readguard.hxx>
  36 #include <threadhelp/writeguard.hxx>
  37 #include <targets.h>
  38 #include <services.h>
  39
  40 //_________________________________________________________________________________________________________________
  41 //  interface includes
  42 //_________________________________________________________________________________________________________________
  43 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  44 #include <com/sun/star/frame/XDispatch.hpp>
  45 #include <com/sun/star/frame/XDispatchProvider.hpp>
  46 #include <com/sun/star/beans/PropertyValue.hpp>
  47 #include <com/sun/star/util/XURLTransformer.hpp>
  48
  49 //_________________________________________________________________________________________________________________
  50 //  includes of other projects
  51 //_________________________________________________________________________________________________________________
  52 #include <svtools/transfer.hxx>
  53 #include <unotools/localfilehelper.hxx>
  54 #include <sot/filelist.hxx>
  55
  56 #include <osl/file.hxx>
  57 #include <vcl/svapp.hxx>
  58
  59 //_________________________________________________________________________________________________________________
  60 //  namespace
  61 //_________________________________________________________________________________________________________________
  62
  63 namespace framework
  64 {
  65
  66 DropTargetListener::DropTargetListener( const css::uno::Reference< css::lang::XMultiServiceFactory >& xFactory,
  67                                         const css::uno::Reference< css::frame::XFrame >&              xFrame  )
  68         : ThreadHelpBase  ( &Application::GetSolarMutex() )
  69         , m_xFactory      ( xFactory                      )
  70         , m_xTargetFrame  ( xFrame                        )
  71         , m_pFormats      ( new DataFlavorExVector        )
  72 {
  73 }
  74
  75 // -----------------------------------------------------------------------------
  76
  77 DropTargetListener::~DropTargetListener()
  78 {
  79     m_xTargetFrame = css::uno::WeakReference< css::frame::XFrame >();
  80     m_xFactory     = css::uno::Reference< css::lang::XMultiServiceFactory >();
  81     delete m_pFormats;
  82     m_pFormats = NULL;
  83 }
  84
  85 // -----------------------------------------------------------------------------
  86
  87 void SAL_CALL DropTargetListener::disposing( const css::lang::EventObject& ) throw( css::uno::RuntimeException )
  88 {
  89     m_xTargetFrame = css::uno::WeakReference< css::frame::XFrame >();
  90     m_xFactory     = css::uno::Reference< css::lang::XMultiServiceFactory >();
  91 }
  92
  93 // -----------------------------------------------------------------------------
  94
  95 void SAL_CALL DropTargetListener::drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) throw( css::uno::RuntimeException )
  96 {
  97     const sal_Int8 nAction = dtde.DropAction;
  98
  99     try
 100     {
 101         if ( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction )
 102         {
 103             TransferableDataHelper aHelper( dtde.Transferable );
 104             sal_Bool bFormatFound = sal_False;
 105             FileList aFileList;
 106
 107             // at first check filelist format
 108             if ( aHelper.GetFileList( SOT_FORMAT_FILE_LIST, aFileList ) )
 109             {
 110                 ULONG i, nCount = aFileList.Count();
 111                 for ( i = 0; i < nCount; ++i )
 112                     implts_OpenFile( aFileList.GetFile(i) );
 113                 bFormatFound = sal_True;
 114             }
 115
 116             // then, if necessary, the file format
 117             String aFilePath;
 118             if ( !bFormatFound && aHelper.GetString( SOT_FORMAT_FILE, aFilePath ) )
 119                 implts_OpenFile( aFilePath );
 120         }
 121         dtde.Context->dropComplete( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction );
 122     }
 123     catch( const ::com::sun::star::uno::Exception& )
 124     {
 125     }
 126 }
 127
 128 // -----------------------------------------------------------------------------
 129
 130 void SAL_CALL DropTargetListener::dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) throw( css::uno::RuntimeException )
 131 {
 132     try
 133     {
 134         implts_BeginDrag( dtdee.SupportedDataFlavors );
 135     }
 136     catch( const ::com::sun::star::uno::Exception& )
 137     {
 138     }
 139
 140     dragOver( dtdee );
 141 }
 142
 143 // -----------------------------------------------------------------------------
 144
 145 void SAL_CALL DropTargetListener::dragExit( const css::datatransfer::dnd::DropTargetEvent& ) throw( css::uno::RuntimeException )
 146 {
 147     try
 148     {
 149         implts_EndDrag();
 150     }
 151     catch( const ::com::sun::star::uno::Exception& )
 152     {
 153     }
 154 }
 155
 156 // -----------------------------------------------------------------------------
 157
 158 void SAL_CALL DropTargetListener::dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) throw( css::uno::RuntimeException )
 159 {
 160     try
 161     {
 162         sal_Bool bAccept = ( implts_IsDropFormatSupported( SOT_FORMAT_FILE ) ||
 163                              implts_IsDropFormatSupported( SOT_FORMAT_FILE_LIST ) );
 164
 165         if ( !bAccept )
 166             dtde.Context->rejectDrag();
 167         else
 168             dtde.Context->acceptDrag( css::datatransfer::dnd::DNDConstants::ACTION_COPY );
 169     }
 170     catch( const ::com::sun::star::uno::Exception& )
 171     {
 172     }
 173 }
 174
 175 // -----------------------------------------------------------------------------
 176
 177 void SAL_CALL DropTargetListener::dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& ) throw( css::uno::RuntimeException )
 178 {
 179 }
 180
 181 void DropTargetListener::implts_BeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors )
 182 {
 183     /* SAFE { */
 184     WriteGuard aWriteLock(m_aLock);
 185     m_pFormats->clear();
 186     TransferableDataHelper::FillDataFlavorExVector(rSupportedDataFlavors,*m_pFormats);
 187     aWriteLock.unlock();
 188     /* } SAFE */
 189 }
 190
 191 void DropTargetListener::implts_EndDrag()
 192 {
 193     /* SAFE { */
 194     WriteGuard aWriteLock(m_aLock);
 195     m_pFormats->clear();
 196     aWriteLock.unlock();
 197     /* } SAFE */
 198 }
 199
 200 sal_Bool DropTargetListener::implts_IsDropFormatSupported( SotFormatStringId nFormat )
 201 {
 202     /* SAFE { */
 203     ReadGuard aReadLock(m_aLock);
 204     DataFlavorExVector::iterator aIter( m_pFormats->begin() ), aEnd( m_pFormats->end() );
 205     sal_Bool bRet = sal_False;
 206
 207     while ( aIter != aEnd )
 208     {
 209         if ( nFormat == (*aIter++).mnSotId )
 210         {
 211             bRet = sal_True;
 212             aIter = aEnd;
 213         }
 214     }
 215     aReadLock.unlock();
 216     /* } SAFE */
 217
 218     return bRet;
 219 }
 220
 221 void DropTargetListener::implts_OpenFile( const String& rFilePath )
 222 {
 223     String aFileURL;
 224     if ( !::utl::LocalFileHelper::ConvertPhysicalNameToURL( rFilePath, aFileURL ) )
 225         aFileURL = rFilePath;
 226
 227     ::osl::FileStatus aStatus( FileStatusMask_FileURL );
 228     ::osl::DirectoryItem aItem;
 229     if( ::osl::FileBase::E_None == ::osl::DirectoryItem::get( aFileURL, aItem ) &&
 230         ::osl::FileBase::E_None == aItem.getFileStatus( aStatus ) )
 231             aFileURL = aStatus.getFileURL();
 232
 233     // open file
 234     /* SAFE { */
 235     ReadGuard aReadLock(m_aLock);
 236     css::uno::Reference< css::frame::XFrame >         xTargetFrame( m_xTargetFrame.get()                                  , css::uno::UNO_QUERY );
 237     css::uno::Reference< css::util::XURLTransformer > xParser     ( m_xFactory->createInstance(SERVICENAME_URLTRANSFORMER), css::uno::UNO_QUERY );
 238     aReadLock.unlock();
 239     /* } SAFE */
 240     if (xTargetFrame.is() && xParser.is())
 241     {
 242         css::util::URL aURL;
 243         aURL.Complete = aFileURL;
 244         xParser->parseStrict(aURL);
 245
 246         css::uno::Reference < css::frame::XDispatchProvider > xProvider( xTargetFrame, css::uno::UNO_QUERY );
 247         css::uno::Reference< css::frame::XDispatch > xDispatcher = xProvider->queryDispatch( aURL, SPECIALTARGET_DEFAULT, 0 );
 248         if ( xDispatcher.is() )
 249             xDispatcher->dispatch( aURL, css::uno::Sequence < css::beans::PropertyValue >() );
 250     }
 251 }
 252
 253 }
 254