41 lines
1009 B
TypeScript
41 lines
1009 B
TypeScript
// Copyright 2017-2020 @polkadot/react-query authors & contributors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
import { Moment } from '@polkadot/types/interfaces';
|
|
|
|
import BN from 'bn.js';
|
|
import React, { useEffect, useState } from 'react';
|
|
import { useApi, useCall } from '@polkadot/react-hooks';
|
|
|
|
import Elapsed from './Elapsed';
|
|
|
|
interface Props {
|
|
children?: React.ReactNode;
|
|
className?: string;
|
|
label?: React.ReactNode;
|
|
}
|
|
|
|
function TimeNow ({ children, className = '', label }: Props): React.ReactElement<Props> {
|
|
const { api, isSubstrateV2 } = useApi();
|
|
const timestamp = useCall<Moment>(api.query.timestamp.now);
|
|
const [now, setNow] = useState<BN | undefined>();
|
|
|
|
useEffect((): void => {
|
|
setNow(
|
|
isSubstrateV2 || !timestamp
|
|
? timestamp
|
|
: timestamp.muln(1000)
|
|
);
|
|
}, [timestamp, isSubstrateV2]);
|
|
|
|
return (
|
|
<div className={className}>
|
|
{label || ''}
|
|
<Elapsed value={now} />
|
|
{children}
|
|
</div>
|
|
);
|
|
}
|
|
|
|
export default React.memo(TimeNow);
|