website/playground/buttons.js/ClipboardButton/showTooltip
class ClipboardButton:  showTooltip(text) {
    this.setState({ showTooltip: true, tooltipText: text }, () => {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      this.timer = setTimeout(() => {
        this.timer = null;
        this.setState({ showTooltip: false });
      }, 2000);
    });
  }