!7

module CurrentAction {
  transient JPanel stack;
  
  visualize {
    ret stack = dynamicVStack2();
  }
  
  // API
  
  // Note: cancelMe will be called in GUI thread
  AutoCloseable showAction(S action, Runnable cancelMe) {
    final JComponent c = centerAndEast(jlabel(action), jbutton("Cancel", cancelMe));
    stack.add(c);
    ret autoCloseable { removeComponent(stack, c); };
  }
}