@wordpress/components/build/style-provider/index.js

UI components for WordPress.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.StyleProvider = StyleProvider;
exports.default = void 0;
var _react = require("@emotion/react");
var _cache = _interopRequireDefault(require("@emotion/cache"));
var uuid = _interopRequireWildcard(require("uuid"));
var _jsxRuntime = require("react/jsx-runtime");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
/**
 * External dependencies
 */

/**
 * Internal dependencies
 */

const uuidCache = new Set();
// Use a weak map so that when the container is detached it's automatically
// dereferenced to avoid memory leak.
const containerCacheMap = new WeakMap();
const memoizedCreateCacheWithContainer = container => {
  if (containerCacheMap.has(container)) {
    return containerCacheMap.get(container);
  }

  // Emotion only accepts alphabetical and hyphenated keys so we just
  // strip the numbers from the UUID. It _should_ be fine.
  let key = uuid.v4().replace(/[0-9]/g, '');
  while (uuidCache.has(key)) {
    key = uuid.v4().replace(/[0-9]/g, '');
  }
  uuidCache.add(key);
  const cache = (0, _cache.default)({
    container,
    key
  });
  containerCacheMap.set(container, cache);
  return cache;
};
function StyleProvider(props) {
  const {
    children,
    document
  } = props;
  if (!document) {
    return null;
  }
  const cache = memoizedCreateCacheWithContainer(document.head);
  return /*#__PURE__*/(0, _jsxRuntime.jsx)(_react.CacheProvider, {
    value: cache,
    children: children
  });
}
var _default = exports.default = StyleProvider;
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