react-use
Version:
Collection of React Hooks
32 lines (31 loc) • 1.2 kB
JavaScript
import { useEffect, useState } from 'react';
import { noop, off, on } from './misc/util';
// const usePermission = <T extends PermissionDescriptor>(permissionDesc: T): IState => {
var usePermission = function (permissionDesc) {
var _a = useState(''), state = _a[0], setState = _a[1];
useEffect(function () {
var mounted = true;
var permissionStatus = null;
var onChange = function () {
if (!mounted) {
return;
}
setState(function () { var _a; return (_a = permissionStatus === null || permissionStatus === void 0 ? void 0 : permissionStatus.state) !== null && _a !== void 0 ? _a : ''; });
};
navigator.permissions
.query(permissionDesc)
.then(function (status) {
permissionStatus = status;
on(permissionStatus, 'change', onChange);
onChange();
})
.catch(noop);
return function () {
permissionStatus && off(permissionStatus, 'change', onChange);
mounted = false;
permissionStatus = null;
};
}, [permissionDesc]);
return state;
};
export default usePermission;