Function showConfirmation

src/common/ui/index.js:79–95

(text, { ok, cancel, input = false } = {})

 *   `input` is string: <?string> i.e. string on Ok, null otherwise;
 */
export function showConfirmation(text, { ok, cancel, input = false } = {}) {
  return new Promise(resolve => {
    const hasInput = input !== false;
    const onCancel = () => resolve(hasInput ? null : false);
    const onOk = val => resolve(!hasInput || val);
    showMessage({
      input,
      text,
      buttons: [
        ok !== false && { text: i18n('buttonOK'), onClick: onOk, ...ok },
        cancel !== false && { text: i18n('buttonCancel'), onClick: onCancel, ...cancel },
      ].filter(Boolean),
      onBackdropClick: onCancel,
      onDismiss: onCancel, // Esc key
    });
  });
}

/** @returns {?number} Number of lines + 1 if the last line is not empty */
export function calcRows(val) {