JTree node edit only from JPopupMenu

• download example.jar
• download src.zip
• repository

Code

tree.setCellEditor(new DefaultTreeCellEditor(
    tree, (DefaultTreeCellRenderer) tree.getCellRenderer()) {
  @Override public boolean isCellEditable(EventObject e) {
    return !(e instanceof MouseEvent) && super.isCellEditable(e);
  }

  // @Override protected boolean canEditImmediately(EventObject e) {
  //   // ((MouseEvent) e).getClickCount() > 2
  //   return (e instanceof MouseEvent) ? false : super.canEditImmediately(e);
  // }
});
tree.setEditable(true);
tree.setComponentPopupMenu(new TreePopupMenu());

// ...
public TreePopupMenu() {
  super();
  add(new JMenuItem(new AbstractAction("Edit") {
    @Override public void actionPerformed(ActionEvent e) {
      JTree tree = (JTree) getInvoker();
      if (path != null) {
        tree.startEditingAtPath(path);
      }
    }
  }));
  add(new JMenuItem(new AbstractAction("Edit Dialog") {
    @Override public void actionPerformed(ActionEvent e) {
      JTree tree = (JTree) getInvoker();
      if (path == null) {
        return;
      }
      Object node = path.getLastPathComponent();
      if (node instanceof DefaultMutableTreeNode) {
        DefaultMutableTreeNode leaf = (DefaultMutableTreeNode) node;
        textField.setText(leaf.getUserObject().toString());
        int result = JOptionPane.showConfirmDialog(
            tree, textField, "Rename",
            JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
        if (result == JOptionPane.OK_OPTION) {
          String str = textField.getText();
          if (!str.trim().isEmpty()) {
            ((DefaultTreeModel) tree.getModel()).valueForPathChanged(path, str);
          }
        }
      }
    }
  }));
  // ...

References

• JTree node edit only from JPopupMenu(Japanese)