grommet/es6/components/SkipLinks/SkipLinks.js

focus on the essential experience

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

import React, { createRef, cloneElement, Component } from 'react';
import { Box } from '../Box';
import { Heading } from '../Heading';
import { Layer } from '../Layer';

var SkipLinks =
/*#__PURE__*/
function (_Component) {
  _inheritsLoose(SkipLinks, _Component);

  function SkipLinks() {
    var _this;

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = _Component.call.apply(_Component, [this].concat(args)) || this;

    _defineProperty(_assertThisInitialized(_this), "state", {
      showLayer: false
    });

    _defineProperty(_assertThisInitialized(_this), "layerRef", createRef());

    _defineProperty(_assertThisInitialized(_this), "onBlur", function () {
      // timeout needed so it gives enough time for activeElement to be updated
      setTimeout(function () {
        var layerNode = _this.layerRef.current;

        if (layerNode && layerNode.layerContainer.contains && !layerNode.layerContainer.contains(document.activeElement)) {
          _this.removeLayer();
        }
      }, 0);
    });

    _defineProperty(_assertThisInitialized(_this), "onFocus", function () {
      _this.setState({
        showLayer: true
      });
    });

    _defineProperty(_assertThisInitialized(_this), "removeLayer", function () {
      _this.setState({
        showLayer: false
      });
    });

    return _this;
  }

  var _proto = SkipLinks.prototype;

  _proto.render = function render() {
    var _this2 = this;

    /* eslint-disable-next-line react/prop-types */
    var _this$props = this.props,
        children = _this$props.children,
        id = _this$props.id,
        messages = _this$props.messages;
    var showLayer = this.state.showLayer;
    return React.createElement(Layer, {
      id: id,
      position: showLayer ? 'top' : 'hidden',
      ref: this.layerRef,
      onFocus: this.onFocus,
      onBlur: this.onBlur
    }, React.createElement(Box, {
      pad: {
        horizontal: 'medium'
      }
    }, React.createElement(Heading, {
      level: 2
    }, messages.skipTo, ":"), React.createElement(Box, {
      direction: "row",
      align: "center",
      pad: {
        bottom: 'medium'
      }
    }, children.map(function (element, index) {
      return cloneElement(element, {
        key: "skip-link-" + index,
        onClick: _this2.removeLayer
      });
    }))));
  };

  return SkipLinks;
}(Component);

_defineProperty(SkipLinks, "defaultProps", {
  messages: {
    skipTo: 'Skip To'
  }
});

var SkipLinksDoc;

if (process.env.NODE_ENV !== 'production') {
  SkipLinksDoc = require('./doc').doc(SkipLinks); // eslint-disable-line global-require
}

var SkipLinksWrapper = SkipLinksDoc || SkipLinks;
export { SkipLinksWrapper as SkipLinks };