@magica11y/light-level/lib/lightLevel.js

Detects the ambient light-level of the user’s device using the 'light-level' CSS3 level 5 media query.

"use strict";

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

var _matchUserPreference = _interopRequireDefault(require("@magica11y/match-user-preference"));

var _availableLightLevels = _interopRequireDefault(require("./availableLightLevels"));

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

const lightLevelsValues = [_availableLightLevels.default.NORMAL, _availableLightLevels.default.DIM, _availableLightLevels.default.WASHED];
/**
 * Detects the ambient light-level in which the device is used
 * using CSS3 Media Queries level 5 specification for `'light-level'`.
 *
 * @returns Either 'normal', 'dim', 'washed' or `null`
 * @see https://drafts.csswg.org/mediaqueries-5/#light-level
 */

const lightLevel = () => {
  const matchedLightLevel = lightLevelsValues.find(lightLevelValue => (0, _matchUserPreference.default)('light-level', lightLevelValue));

  if (matchedLightLevel) {
    return matchedLightLevel;
  }

  return null;
};

var _default = lightLevel;
exports.default = _default;