sclass tablePopupMenu_Maker {
  new L menuMakers;
}

static Map<JTable, tablePopupMenu_Maker> tablePopupMenu_map = newWeakHashMap();

static new ThreadLocal<MouseEvent> tablePopupMenu_mouseEvent;
static new ThreadLocal<Bool> tablePopupMenu_first;

// menuMaker = voidfunc(JPopupMenu, int row)
static void tablePopupMenu(final JTable table, fO menuMaker) {
  final bool first = isTrue(getAndClearThreadLocal(tablePopupMenu_first));
  swing {
    tablePopupMenu_Maker maker = tablePopupMenu_map.get(table);
    if (maker == null) {
      tablePopupMenu_map.put(table, maker = new tablePopupMenu_Maker);
      final tablePopupMenu_Maker _maker = maker;
      table.addMouseListener(new MouseAdapter {
        public void mousePressed(MouseEvent e) { displayMenu(e); }
        public void mouseReleased(MouseEvent e) { displayMenu(e); }
      
        void displayMenu(MouseEvent e) {
          if (!e.isPopupTrigger()) ret;
          new JPopupMenu menu;
          int row = table.rowAtPoint(e.getPoint());
          if (table.getSelectedRowCount() < 2)
            table.setRowSelectionInterval(row, row);
          int modelRow = convertTableRowToModel(table, row);
          int emptyCount = menu.getComponentCount();
          
          tablePopupMenu_mouseEvent.set(e);
          for (O menuMaker : _maker.menuMakers)
            pcallF(menuMaker, menu, modelRow);
            
          vmBus_send('showingPopupMenu, table, menu);
          
          // show menu if any items in it
          if (menu.getComponentCount() != emptyCount)
            menu.show(e.getComponent(), e.getX(), e.getY());
        }
      });
    }
    if (first)
      maker.menuMakers.add(0, menuMaker);
    else
      maker.menuMakers.add(menuMaker);
  }
}