gatsby
Version:
Blazing fast modern site generator for React
50 lines (47 loc) • 2.4 kB
JavaScript
;
exports.__esModule = true;
exports.useId = useId;
var React = _interopRequireWildcard(require("react"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
// Copied from https://github.com/carbon-design-system/carbon
// License: Apache-2.0
// Copyright IBM Corp. 2016, 2018
// Entrypoint: packages/react/src/internal/useId.js
function setupGetInstanceId() {
let instanceId = 0;
return function getInstanceId() {
return ++instanceId;
};
}
const getId = setupGetInstanceId();
const useIsomorphicLayoutEffect = canUseDOM() ? React.useLayoutEffect : React.useEffect;
function canUseDOM() {
return !!(typeof window !== `undefined` && window.document && window.document.createElement);
}
let serverHandoffCompleted = false;
/**
* Generate a unique ID with an optional prefix prepended to it
* @param {string} [prefix]
* @returns {string}
*/
function useId(prefix = `id`) {
const [id, setId] = React.useState(() => {
if (serverHandoffCompleted) {
return `${prefix}-${getId()}`;
}
return null;
});
useIsomorphicLayoutEffect(() => {
if (id === null) {
setId(`${prefix}-${getId()}`);
}
}, [getId]);
React.useEffect(() => {
if (serverHandoffCompleted === false) {
serverHandoffCompleted = true;
}
}, []);
return id;
}
//# sourceMappingURL=use-id.js.map