svoid inputText(S msg, S defaultText, IVF1<S> action) {
  inputText(msg, defaultText, (O) action);
}

svoid inputText(S msg, IVF1<S> action) {
  inputText(msg, (O) action);
}

// legacy signatures

svoid inputText(S msg, O action) {
  inputText(msg, "", action);
}

// action: voidfunc(S)
svoid inputText(S msg, S defaultText, O action) {
  fO threadInfo = _threadInfo();
  awt {
    final JTextField tf = jtextfield(defaultText);
    S title = joinNemptiesWithVBar(msg, programNameOrNull());
    JComponent form = showFormTitled(title,
      unnull(msg), tf,
      r {
        vmBus_send('inputtingText_OK, threadInfo, msg, tf);
        callF_thread(action, getTextTrim(tf))
      });
    renameSubmitButton(form, "OK");
    vmBus_send('inputtingText, threadInfo, msg, tf);
  }
}

Began life as a copy of #1006692