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

   1 package yukihane.inqubus.gui;
   2
   3 import java.awt.EventQueue;
   4 import java.awt.event.FocusEvent;
   5 import java.awt.event.FocusListener;
   6 import java.awt.event.KeyAdapter;
   7 import java.awt.event.KeyEvent;
   8 import java.nio.file.Path;
   9 import java.util.Collection;
  10 import java.util.HashSet;
  11 import java.util.Set;
  12 import java.util.SortedSet;
  13 import java.util.logging.Level;
  14 import java.util.logging.Logger;
  15 import javax.swing.DefaultComboBoxModel;
  16 import javax.swing.JComboBox;
  17 import javax.swing.JTextField;
  18 import yukihane.inqubus.filewatch.FileWatch;
  19 import yukihane.inqubus.filewatch.FileWatchUtil;
  20
  21 final class IdComboBox extends JComboBox<String> {
  22
  23     private static final Logger logger = Logger.getLogger(IdComboBox.class.getName());
  24     private final Set<Path> alternates = new HashSet<>();
  25     private final FileWatch videoFileWatcher;
  26
  27     IdComboBox(FileWatch videoFileWather) {
  28         super();
  29         this.videoFileWatcher = videoFileWather;
  30         setEditable(true);
  31         setSelectedIndex(-1);
  32         getEditorComponent().addKeyListener(new AutoCompleteAdapter());
  33         getEditorComponent().addFocusListener(new FocusListener() {
  34
  35             @Override
  36             public void focusGained(FocusEvent e) {
  37                 logger.log(Level.FINEST, "ID field focus gained");
  38                 setAlternates(videoFileWatcher.getFiles());
  39             }
  40
  41             @Override
  42             public void focusLost(FocusEvent e) {
  43                 logger.log(Level.FINEST, "ID field focus lost");
  44             }
  45         });
  46
  47     }
  48
  49     JTextField getEditorComponent() {
  50         return (JTextField) getEditor().getEditorComponent();
  51     }
  52
  53     void setAlternates(Collection<Path> alternates) {
  54         this.alternates.clear();
  55         this.alternates.addAll(alternates);
  56     }
  57
  58     String getText() {
  59         return getEditorComponent().getText();
  60     }
  61
  62     void setText(String str) {
  63         getEditorComponent().setText(str);
  64     }
  65
  66     private class AutoCompleteAdapter extends KeyAdapter {
  67
  68         @Override
  69         public void keyTyped(final KeyEvent e) {
  70             logger.log(Level.FINEST, "key typed");
  71             EventQueue.invokeLater(new Runnable() {
  72
  73                 @Override
  74                 public void run() {
  75                     final String text = getText();
  76                     final SortedSet<String> alt = FileWatchUtil.getVideoIdsStartWith(alternates, text);
  77                     final String[] altArray = alt.toArray(new String[0]);
  78                     DefaultComboBoxModel<String> model = new DefaultComboBoxModel<>(altArray);
  79                     IdComboBox.this.setModel(model);
  80                     setSelectedIndex(-1);
  81                     setText(text);
  82                     IdComboBox.this.showPopup();
  83                 }
  84             });
  85         }
  86     }
  87 }