grommet/es6/components/SkipLinks/SkipLinks.js

focus on the essential experience

import React, { Children, cloneElement, useContext, useRef, useState } from 'react';
import { Box } from '../Box';
import { Text } from '../Text';
import { Layer } from '../Layer';
import { MessageContext } from '../../contexts/MessageContext';
import { SkipLinksPropTypes } from './propTypes';
import { useThemeValue } from '../../utils/useThemeValue';
var SkipLinks = function SkipLinks(_ref) {
  var children = _ref.children,
    id = _ref.id,
    messages = _ref.messages;
  var _useThemeValue = useThemeValue(),
    theme = _useThemeValue.theme;
  var _useState = useState(false),
    showLayer = _useState[0],
    setShowLayer = _useState[1];
  var _useContext = useContext(MessageContext),
    format = _useContext.format;
  var layerRef = useRef(null);
  var onFocus = function onFocus() {
    setShowLayer(true);
  };
  var removeLayer = function removeLayer() {
    setShowLayer(false);
  };
  var onBlur = function onBlur() {
    // timeout needed so it gives enough time for activeElement to be updated
    setTimeout(function () {
      var layerNode = layerRef.current;
      if (layerNode && !layerNode.contains(document.activeElement)) {
        // close the layer when the activeElement isn't contained in the layer
        removeLayer();
      }
    }, 0);
  };
  return /*#__PURE__*/React.createElement(Layer, {
    id: id,
    position: showLayer ? theme.skipLinks.position : 'hidden',
    ref: layerRef,
    onFocus: onFocus,
    onBlur: onBlur,
    modal: false
    // Prepend the Layer so any SkipLink will be the first element that
    // pressing the Tab key reaches, targetChildPosition triggers prepend.
    ,
    targetChildPosition: "first"
    // Non-modal Layer's will take the full screen at small breakpoints
    // by default, which isn't what we want, hence setting responsive false
    ,
    responsive: false
  }, /*#__PURE__*/React.createElement(Box, theme.skipLinks.container, /*#__PURE__*/React.createElement(Text, theme.skipLinks.label, format({
    id: 'skipLinks.skipTo',
    messages: messages
  })), /*#__PURE__*/React.createElement(Box, {
    align: "center",
    gap: "medium"
  }, Children.map(children, function (child, index) {
    return child && /*#__PURE__*/cloneElement(child, {
      // eslint-disable-next-line react/no-array-index-key
      key: "skip-link-" + index,
      onClick: removeLayer
    });
  }))));
};
SkipLinks.propTypes = SkipLinksPropTypes;
export { SkipLinks };