Swing/TreeNodePopupMenu のバックアップの現在との差分(No.5)

#spandel
static class TreePopupMenu extends JPopupMenu {
#spanend
  private TreePath[] tsp;
  public TreePopupMenu() {
#spanadd
class TreePopupMenu extends JPopupMenu {
#spanend
  protected TreePopupMenu() {
    super();
    add(new AbstractAction("path") {
      @Override public void actionPerformed(ActionEvent e) {
        JOptionPane.showMessageDialog(
          null, tsp, "path", JOptionPane.INFORMATION_MESSAGE);
      }
    add("path").addActionListener(e -> {
      JTree tree = (JTree) getInvoker();
      JOptionPane.showMessageDialog(
        tree, tree.getSelectionPaths(), "path",
        JOptionPane.INFORMATION_MESSAGE);
    });
    add(new JMenuItem("dummy"));
    add("JMenuItem");
  }
#spanadd

#spanend
  @Override public void show(Component c, int x, int y) {
    JTree tree = (JTree) c;
    tsp = tree.getSelectionPaths();
    TreePath path = tree.getPathForLocation(x, y);
    if (path != null && Arrays.asList(tsp).contains(path)) {
      super.show(c, x, y);
    if (c instanceof JTree) {
      JTree tree = (JTree) c;
      TreePath path = tree.getPathForLocation(x, y);
      if (tree.getSelectionCount() > 0
          && Arrays.asList(tree.getSelectionPaths()).contains(path)) {
        super.show(c, x, y);
      }
    }
  }
}