frontend/src/yukihane/inqubus/gui/AutoCompleteAdapter.java

   1 package yukihane.inqubus.gui;
   2
   3 import java.awt.EventQueue;
   4 import java.awt.event.KeyAdapter;
   5 import java.awt.event.KeyEvent;
   6 import java.nio.file.Path;
   7 import java.util.Collection;
   8 import java.util.HashSet;
   9 import java.util.Set;
  10 import java.util.SortedSet;
  11 import javax.swing.DefaultComboBoxModel;
  12 import javax.swing.JComboBox;
  13 import javax.swing.JTextField;
  14 import yukihane.inqubus.filewatch.FileWatchUtil;
  15
  16 class AutoCompleteAdapter extends KeyAdapter {
  17
  18     private final JComboBox<String> component;
  19     private final Set<Path> alternates = new HashSet<>();
  20
  21     AutoCompleteAdapter(JComboBox<String> component) {
  22         this.component = component;
  23     }
  24
  25     void setAlternates(Collection<Path> alternates) {
  26         this.alternates.clear();
  27         this.alternates.addAll(alternates);
  28     }
  29
  30     @Override
  31     public void keyTyped(final KeyEvent e) {
  32         EventQueue.invokeLater(new Runnable() {
  33
  34             @Override
  35             public void run() {
  36                 final String text = ((JTextField) e.getSource()).getText();
  37                 final SortedSet<String> alt = FileWatchUtil.contain(alternates, text);
  38                 final String[] altArray = alt.toArray(new String[0]);
  39                 DefaultComboBoxModel<String> model = new DefaultComboBoxModel<>(altArray);
  40                 component.setModel(model);
  41                 component.showPopup();
  42             }
  43         });
  44     }
  45 }