argeo/cms/ui/fs/FileDrop.java

   1 package org.argeo.cms.ui.fs;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5
   6 import org.apache.commons.logging.Log;
   7 import org.apache.commons.logging.LogFactory;
   8 import org.eclipse.rap.fileupload.FileDetails;
   9 import org.eclipse.rap.fileupload.FileUploadHandler;
  10 import org.eclipse.rap.fileupload.FileUploadReceiver;
  11 import org.eclipse.rap.rwt.RWT;
  12 import org.eclipse.rap.rwt.client.ClientFile;
  13 import org.eclipse.rap.rwt.client.service.ClientFileUploader;
  14 import org.eclipse.rap.rwt.dnd.ClientFileTransfer;
  15 import org.eclipse.swt.dnd.DND;
  16 import org.eclipse.swt.dnd.DropTarget;
  17 import org.eclipse.swt.dnd.DropTargetAdapter;
  18 import org.eclipse.swt.dnd.DropTargetEvent;
  19 import org.eclipse.swt.dnd.Transfer;
  20 import org.eclipse.swt.widgets.Control;
  21
  22 public class FileDrop {
  23         private final static Log log = LogFactory.getLog(FileDrop.class);
  24
  25         public void createDropTarget(Control control) {
  26                 DropTarget dropTarget = new DropTarget(control, DND.DROP_MOVE | DND.DROP_COPY);
  27                 dropTarget.setTransfer(new Transfer[] { ClientFileTransfer.getInstance() });
  28                 dropTarget.addDropListener(new DropTargetAdapter() {
  29                         private static final long serialVersionUID = 5361645765549463168L;
  30
  31                         @Override
  32                         public void dropAccept(DropTargetEvent event) {
  33                                 if (!ClientFileTransfer.getInstance().isSupportedType(event.currentDataType)) {
  34                                         event.detail = DND.DROP_NONE;
  35                                 }
  36                         }
  37
  38                         @Override
  39                         public void drop(DropTargetEvent event) {
  40                                 handleFileDrop(control, (ClientFile[]) event.data);
  41                         }
  42                 });
  43         }
  44
  45         private void handleFileDrop(Control control, ClientFile[] clientFiles) {
  46                 ClientFileUploader service = RWT.getClient().getService(ClientFileUploader.class);
  47 //              DiskFileUploadReceiver receiver = new DiskFileUploadReceiver();
  48                 FileUploadReceiver receiver = new FileUploadReceiver() {
  49
  50                         @Override
  51                         public void receive(InputStream stream, FileDetails details) throws IOException {
  52                                 if (log.isDebugEnabled())
  53                                         log.debug("Process upload of " + details.getFileName() + " (" + details.getContentType() + ")");
  54                                 control.getDisplay()
  55                                                 .syncExec(() -> processUpload(stream, details.getFileName(), details.getContentType()));
  56                         }
  57                 };
  58                 FileUploadHandler handler = new FileUploadHandler(receiver);
  59 //                  handler.setMaxFileSize( sizeLimit );
  60 //                  handler.setUploadTimeLimit( timeLimit );
  61                 service.submit(handler.getUploadUrl(), clientFiles);
  62 //              for (File file : receiver.getTargetFiles()) {
  63 //                      paths.add(file.toPath());
  64 //              }
  65         }
  66
  67         /** Executed in UI thread */
  68         protected void processUpload(InputStream in, String fileName, String contetnType) {
  69
  70         }
  71 }