ab-tests/_dist/system/ThemeContext.js

HBUI library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ThemeProvider = exports.ThemeContext = void 0;

var _react = _interopRequireDefault(require("react"));

var _react2 = require("@emotion/react");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

var getInitialTheme = function getInitialTheme() {
  if (typeof window !== 'undefined' && window.localStorage) {
    var storedPrefs = window.localStorage.getItem('color-theme');

    if (typeof storedPrefs === 'string') {
      return storedPrefs;
    }

    var userMedia = window.matchMedia('(prefers-color-scheme: dark)');

    if (userMedia.matches) {
      return 'dark';
    }
  }

  return 'dark';
};

var ThemeContext = /*#__PURE__*/_react["default"].createContext();

exports.ThemeContext = ThemeContext;

var ThemeProvider = function ThemeProvider(_ref) {
  var initialTheme = _ref.initialTheme,
      children = _ref.children;

  var _React$useState = _react["default"].useState(getInitialTheme),
      _React$useState2 = _slicedToArray(_React$useState, 2),
      theme = _React$useState2[0],
      setTheme = _React$useState2[1];

  var rawSetTheme = function rawSetTheme(theme) {
    var root = window.document.documentElement;
    var isDark = theme === 'dark';
    root.classList.remove(isDark ? 'light' : 'dark');
    root.classList.add(theme);
    localStorage.setItem('color-theme', theme);
  };

  if (initialTheme) {
    rawSetTheme(initialTheme);
  }

  _react["default"].useEffect(function () {
    rawSetTheme(theme);
  }, [theme]);

  return (0, _react2.jsx)(ThemeContext.Provider, {
    value: {
      theme: theme,
      setTheme: setTheme
    }
  }, children);
};

exports.ThemeProvider = ThemeProvider;