GenericUploadControl.java

   1 package org.argeo.eclipse.ui.specific;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5
   6 import org.apache.commons.io.FileUtils;
   7 import org.apache.commons.logging.Log;
   8 import org.apache.commons.logging.LogFactory;
   9 import org.eclipse.swt.SWT;
  10 import org.eclipse.swt.events.ModifyListener;
  11 import org.eclipse.swt.layout.GridData;
  12 import org.eclipse.swt.layout.GridLayout;
  13 import org.eclipse.swt.widgets.Button;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Event;
  16 import org.eclipse.swt.widgets.FileDialog;
  17 import org.eclipse.swt.widgets.Listener;
  18 import org.eclipse.swt.widgets.Text;
  19
  20 public class GenericUploadControl extends Composite {
  21         private final static Log log = LogFactory
  22                         .getLog(GenericUploadControl.class);
  23
  24         private FileDialog dialog;
  25         private Text filePath;
  26
  27         public GenericUploadControl(Composite parent, int style, String browseLabel) {
  28                 super(parent, style);
  29                 createControl(this, browseLabel);
  30
  31         }
  32
  33         private void createControl(final Composite parent, String browseLabel) {
  34                 Composite composite = new Composite(parent, SWT.FILL);
  35                 composite.setLayout(new GridLayout(2, false));
  36                 composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  37
  38                 filePath = new Text(parent, SWT.BORDER | SWT.SINGLE);
  39                 filePath.setEnabled(false);
  40
  41                 // Execute button
  42                 Button execute = new Button(parent, SWT.PUSH);
  43                 GridData gridData = new GridData();
  44                 gridData.horizontalAlignment = GridData.BEGINNING;
  45                 execute.setLayoutData(gridData);
  46                 execute.setText(browseLabel);
  47
  48                 // Button listener
  49                 Listener executeListener = new Listener() {
  50                         public void handleEvent(Event event) {
  51                                 dialog = new FileDialog(parent.getShell());
  52                                 dialog.open();
  53
  54                         }
  55                 };
  56
  57                 execute.addListener(SWT.Selection, executeListener);
  58         }
  59
  60         public boolean isControlEmpty() {
  61                 String path = filePath.getText();
  62                 if (path == null || "".equals(path.trim()))
  63                         return true;
  64                 else
  65                         return false;
  66         }
  67
  68         public byte[] performUpload() {
  69                 String path = filePath.getText();
  70                 if (path != null) {
  71                         try {
  72                                 File file = new File(path);
  73                                 byte[] fileBA = FileUtils.readFileToByteArray(file);
  74                                 return fileBA;
  75                         } catch (IOException e) {
  76                                 // TODO Auto-generated catch block
  77                                 e.printStackTrace();
  78                         }
  79                 }
  80                 return null;
  81         }
  82
  83         public void addModifyListener(ModifyListener listener) {
  84                 filePath.addModifyListener(listener);
  85         }
  86
  87         /**
  88          * Always returns null in an RCP environment
  89          */
  90         public String getLastFileUploadedName() {
  91                 return null;
  92         }
  93
  94         // private class UploadManager extends UploadAdapter {
  95         // private Upload upload;
  96         //
  97         // public UploadManager(Upload upload) {
  98         // super();
  99         // this.upload = upload;
 100         // }
 101         //
 102         // public void uploadFinished(UploadEvent uploadEvent) {
 103         // handleUploadFinished(upload);
 104         // }
 105         //
 106         // public void uploadInProgress(UploadEvent uploadEvent) {
 107         // }
 108         //
 109         // public void uploadException(UploadEvent uploadEvent) {
 110         // Exception exc = uploadEvent.getUploadException();
 111         // if (exc != null) {
 112         // MessageDialog.openError(Display.getCurrent().getActiveShell(),
 113         // "Error", exc.getMessage());
 114         // }
 115         // }
 116         //
 117         // }
 118         //
 119
 120 }