element-web/src/hooks/useAsyncMemo.js
J. Ryan Stinnett a71a234622 Check for cross-signing homeserver support
This checks the homeserver to ensure it supports cross-signing (via the versions
feature flag) before attempting bootstrapping or offering user verification.

Fixes https://github.com/vector-im/riot-web/issues/11863
2020-02-24 15:04:34 +00:00

25 lines
875 B
JavaScript

/*
Copyright 2020 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import { useState, useEffect } from 'react';
export const useAsyncMemo = (fn, deps, initialValue) => {
const [value, setValue] = useState(initialValue);
useEffect(() => {
fn().then(setValue);
}, deps); // eslint-disable-line react-hooks/exhaustive-deps
return value;
};