bundles/org.simantics.fileimport.ui/src/org/simantics/fileimport/ui/ImportFileHandler.java

   1
   2 package org.simantics.fileimport.ui;
   3
   4 import java.nio.file.Paths;
   5 import java.util.Map;
   6 import java.util.Optional;
   7
   8 import javax.inject.Named;
   9
  10 import org.eclipse.e4.core.di.annotations.CanExecute;
  11 import org.eclipse.e4.core.di.annotations.Execute;
  12 import org.eclipse.e4.ui.services.IServiceConstants;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.widgets.FileDialog;
  15 import org.eclipse.swt.widgets.Shell;
  16 import org.simantics.fileimport.FileImportService;
  17
  18 public class ImportFileHandler {
  19
  20     @CanExecute
  21     public boolean canExecute() {
  22         return !FileImportService.supportedExtensionsWithFilters().isEmpty();
  23     }
  24
  25     @Execute
  26     public void execute(@Named(IServiceConstants.ACTIVE_SHELL) Shell shell) {
  27
  28         Map<String, String> extensions = FileImportService.supportedExtensionsWithFilters();
  29         String[] filterExtensions = (String[]) extensions.keySet().toArray(new String[extensions.keySet().size()]);
  30         String[] filterNames = (String[]) extensions.values().toArray(new String[extensions.values().size()]);
  31
  32         // Sanity check
  33         for (int i = 0; i < filterExtensions.length; i++) {
  34             String extension = filterExtensions[i];
  35             if (!extension.startsWith("*.")) {
  36                 System.err.println("Invalid extension filter provied: " + extension);
  37             }
  38         }
  39
  40         FileDialog dialog = new FileDialog(shell, SWT.OPEN);
  41         dialog.setText("Choose File");
  42         dialog.setFilterExtensions(filterExtensions);
  43         dialog.setFilterNames(filterNames);
  44         final String fileName = dialog.open();
  45         if (fileName == null)
  46             return;
  47         FileImportService.performFileImport(Paths.get(fileName), Optional.empty());
  48     }
  49 }