@tamagui/react-native-web-lite/dist/cjs/Appearance/index.cjs

React Native for Web

var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all) __defProp(target, name, {
    get: all[name],
    enumerable: true
  });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from)) if (!__hasOwnProp.call(to, key) && key !== except) __defProp(to, key, {
      get: () => from[key],
      enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable
    });
  }
  return to;
};
var __toCommonJS = mod => __copyProps(__defProp({}, "__esModule", {
  value: true
}), mod);
var Appearance_exports = {};
__export(Appearance_exports, {
  Appearance: () => Appearance
});
module.exports = __toCommonJS(Appearance_exports);
var import_react_native_web_internals = require("@tamagui/react-native-web-internals");
function getQuery() {
  return import_react_native_web_internals.canUseDOM && window.matchMedia != null ? window.matchMedia("(prefers-color-scheme: dark)") : null;
}
const query = getQuery();
const listenerMapping = /* @__PURE__ */new WeakMap();
const Appearance = {
  getColorScheme() {
    return query && query.matches ? "dark" : "light";
  },
  addChangeListener(listener) {
    let mappedListener = listenerMapping.get(listener);
    if (!mappedListener) {
      mappedListener = ({
        matches
      }) => {
        listener({
          colorScheme: matches ? "dark" : "light"
        });
      };
      listenerMapping.set(listener, mappedListener);
    }
    if (query) {
      query.addListener(mappedListener);
    }
    function remove() {
      const mappedListener2 = listenerMapping.get(listener);
      if (query && mappedListener2) {
        query.removeListener(mappedListener2);
      }
      listenerMapping.delete(listener);
    }
    return {
      remove
    };
  }
};