framework/source/classes/droptargetlistener.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_framework.hxx"
  33
  34 //_________________________________________________________________________________________________________________
  35 //      my own includes
  36 //_________________________________________________________________________________________________________________
  37 #include <classes/droptargetlistener.hxx>
  38 #include <threadhelp/readguard.hxx>
  39 #include <threadhelp/writeguard.hxx>
  40 #include <targets.h>
  41 #include <services.h>
  42
  43 //_________________________________________________________________________________________________________________
  44 //      interface includes
  45 //_________________________________________________________________________________________________________________
  46 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  47 #include <com/sun/star/frame/XDispatch.hpp>
  48 #include <com/sun/star/frame/XDispatchProvider.hpp>
  49 #include <com/sun/star/beans/PropertyValue.hpp>
  50 #include <com/sun/star/util/XURLTransformer.hpp>
  51
  52 //_________________________________________________________________________________________________________________
  53 //      includes of other projects
  54 //_________________________________________________________________________________________________________________
  55 #include <svtools/transfer.hxx>
  56 #include <unotools/localfilehelper.hxx>
  57 #include <sot/filelist.hxx>
  58
  59 #include <osl/file.hxx>
  60 #include <vcl/svapp.hxx>
  61
  62 //_________________________________________________________________________________________________________________
  63 //      namespace
  64 //_________________________________________________________________________________________________________________
  65
  66 namespace framework
  67 {
  68
  69 DropTargetListener::DropTargetListener( const css::uno::Reference< css::lang::XMultiServiceFactory >& xFactory,
  70                                         const css::uno::Reference< css::frame::XFrame >&              xFrame  )
  71         : ThreadHelpBase  ( &Application::GetSolarMutex() )
  72         , m_xFactory      ( xFactory                      )
  73         , m_xTargetFrame  ( xFrame                        )
  74         , m_pFormats      ( new DataFlavorExVector        )
  75 {
  76 }
  77
  78 // -----------------------------------------------------------------------------
  79
  80 DropTargetListener::~DropTargetListener()
  81 {
  82     m_xTargetFrame = css::uno::WeakReference< css::frame::XFrame >();
  83     m_xFactory     = css::uno::Reference< css::lang::XMultiServiceFactory >();
  84     delete m_pFormats;
  85     m_pFormats = NULL;
  86 }
  87
  88 // -----------------------------------------------------------------------------
  89
  90 void SAL_CALL DropTargetListener::disposing( const css::lang::EventObject& ) throw( css::uno::RuntimeException )
  91 {
  92     m_xTargetFrame = css::uno::WeakReference< css::frame::XFrame >();
  93     m_xFactory     = css::uno::Reference< css::lang::XMultiServiceFactory >();
  94 }
  95
  96 // -----------------------------------------------------------------------------
  97
  98 void SAL_CALL DropTargetListener::drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) throw( css::uno::RuntimeException )
  99 {
 100     const sal_Int8 nAction = dtde.DropAction;
 101
 102     try
 103     {
 104         if ( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction )
 105         {
 106             TransferableDataHelper aHelper( dtde.Transferable );
 107             sal_Bool bFormatFound = sal_False;
 108             FileList aFileList;
 109
 110             // at first check filelist format
 111             if ( aHelper.GetFileList( SOT_FORMAT_FILE_LIST, aFileList ) )
 112             {
 113                 ULONG i, nCount = aFileList.Count();
 114                 for ( i = 0; i < nCount; ++i )
 115                     implts_OpenFile( aFileList.GetFile(i) );
 116                 bFormatFound = sal_True;
 117             }
 118
 119             // then, if necessary, the file format
 120             String aFilePath;
 121             if ( !bFormatFound && aHelper.GetString( SOT_FORMAT_FILE, aFilePath ) )
 122                 implts_OpenFile( aFilePath );
 123         }
 124         dtde.Context->dropComplete( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction );
 125     }
 126     catch( const ::com::sun::star::uno::Exception& )
 127     {
 128     }
 129 }
 130
 131 // -----------------------------------------------------------------------------
 132
 133 void SAL_CALL DropTargetListener::dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) throw( css::uno::RuntimeException )
 134 {
 135     try
 136     {
 137         implts_BeginDrag( dtdee.SupportedDataFlavors );
 138     }
 139     catch( const ::com::sun::star::uno::Exception& )
 140     {
 141     }
 142
 143     dragOver( dtdee );
 144 }
 145
 146 // -----------------------------------------------------------------------------
 147
 148 void SAL_CALL DropTargetListener::dragExit( const css::datatransfer::dnd::DropTargetEvent& ) throw( css::uno::RuntimeException )
 149 {
 150     try
 151     {
 152         implts_EndDrag();
 153     }
 154     catch( const ::com::sun::star::uno::Exception& )
 155     {
 156     }
 157 }
 158
 159 // -----------------------------------------------------------------------------
 160
 161 void SAL_CALL DropTargetListener::dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) throw( css::uno::RuntimeException )
 162 {
 163     try
 164     {
 165         sal_Bool bAccept = ( implts_IsDropFormatSupported( SOT_FORMAT_FILE ) ||
 166                              implts_IsDropFormatSupported( SOT_FORMAT_FILE_LIST ) );
 167
 168         if ( !bAccept )
 169             dtde.Context->rejectDrag();
 170         else
 171             dtde.Context->acceptDrag( css::datatransfer::dnd::DNDConstants::ACTION_COPY );
 172     }
 173     catch( const ::com::sun::star::uno::Exception& )
 174     {
 175     }
 176 }
 177
 178 // -----------------------------------------------------------------------------
 179
 180 void SAL_CALL DropTargetListener::dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& ) throw( css::uno::RuntimeException )
 181 {
 182 }
 183
 184 void DropTargetListener::implts_BeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors )
 185 {
 186     /* SAFE { */
 187     WriteGuard aWriteLock(m_aLock);
 188     m_pFormats->clear();
 189     TransferableDataHelper::FillDataFlavorExVector(rSupportedDataFlavors,*m_pFormats);
 190     aWriteLock.unlock();
 191     /* } SAFE */
 192 }
 193
 194 void DropTargetListener::implts_EndDrag()
 195 {
 196     /* SAFE { */
 197     WriteGuard aWriteLock(m_aLock);
 198     m_pFormats->clear();
 199     aWriteLock.unlock();
 200     /* } SAFE */
 201 }
 202
 203 sal_Bool DropTargetListener::implts_IsDropFormatSupported( SotFormatStringId nFormat )
 204 {
 205     /* SAFE { */
 206     ReadGuard aReadLock(m_aLock);
 207     DataFlavorExVector::iterator aIter( m_pFormats->begin() ), aEnd( m_pFormats->end() );
 208     sal_Bool bRet = sal_False;
 209
 210     while ( aIter != aEnd )
 211     {
 212         if ( nFormat == (*aIter++).mnSotId )
 213         {
 214             bRet = sal_True;
 215             aIter = aEnd;
 216         }
 217     }
 218     aReadLock.unlock();
 219     /* } SAFE */
 220
 221     return bRet;
 222 }
 223
 224 void DropTargetListener::implts_OpenFile( const String& rFilePath )
 225 {
 226     String aFileURL;
 227     if ( !::utl::LocalFileHelper::ConvertPhysicalNameToURL( rFilePath, aFileURL ) )
 228         aFileURL = rFilePath;
 229
 230     ::osl::FileStatus aStatus( FileStatusMask_FileURL );
 231     ::osl::DirectoryItem aItem;
 232     if( ::osl::FileBase::E_None == ::osl::DirectoryItem::get( aFileURL, aItem ) &&
 233         ::osl::FileBase::E_None == aItem.getFileStatus( aStatus ) )
 234             aFileURL = aStatus.getFileURL();
 235
 236     // open file
 237     /* SAFE { */
 238     ReadGuard aReadLock(m_aLock);
 239     css::uno::Reference< css::frame::XFrame >         xTargetFrame( m_xTargetFrame.get()                                  , css::uno::UNO_QUERY );
 240     css::uno::Reference< css::util::XURLTransformer > xParser     ( m_xFactory->createInstance(SERVICENAME_URLTRANSFORMER), css::uno::UNO_QUERY );
 241     aReadLock.unlock();
 242     /* } SAFE */
 243     if (xTargetFrame.is() && xParser.is())
 244     {
 245         css::util::URL aURL;
 246         aURL.Complete = aFileURL;
 247         xParser->parseStrict(aURL);
 248
 249         css::uno::Reference < css::frame::XDispatchProvider > xProvider( xTargetFrame, css::uno::UNO_QUERY );
 250         css::uno::Reference< css::frame::XDispatch > xDispatcher = xProvider->queryDispatch( aURL, SPECIALTARGET_DEFAULT, 0 );
 251         if ( xDispatcher.is() )
 252             xDispatcher->dispatch( aURL, css::uno::Sequence < css::beans::PropertyValue >() );
 253     }
 254 }
 255
 256 }
 257