Function componentDidMount

src/Offcanvas.js:109–128

()

  }

  componentDidMount() {
    const { isOpen, autoFocus, onEnter } = this.props;

    if (isOpen) {
      this.init();
      this.setState({ isOpen: true });
      if (autoFocus) {
        this.setFocus();
      }
    }

    if (onEnter) {
      onEnter();
    }

    // traps focus inside the Offcanvas, even if the browser address bar is focused
    document.addEventListener('focus', this.trapFocus, true);

    this._isMounted = true;
  }

  componentDidUpdate(prevProps, prevState) {
    if (this.props.isOpen && !prevProps.isOpen) {