92 lines
2.2 KiB
TypeScript
92 lines
2.2 KiB
TypeScript
// Copyright 2017-2021 @polkadot/react-params authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { Props } from '../types';
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import React, { useCallback, useEffect, useState } from 'react';
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import { Input } from '@polkadot/react-components';
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import { compactAddLength, hexToU8a, u8aConcat } from '@polkadot/util';
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import Bare from './Bare';
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interface StateParam {
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isValid: boolean;
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u8a: Uint8Array;
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}
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// eslint-disable-next-line @typescript-eslint/ban-types
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export function createParam (hex: string | String, length = -1): StateParam {
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let u8a;
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try {
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u8a = hexToU8a(hex.toString());
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} catch (error) {
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u8a = new Uint8Array([]);
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}
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const isValid = length !== -1
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? u8a.length === length
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: u8a.length !== 0;
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return {
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isValid,
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u8a: compactAddLength(u8a)
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};
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}
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function KeyValue ({ className = '', isDisabled, label, onChange, onEnter, withLabel }: Props): React.ReactElement<Props> {
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const [, setIsValid] = useState(false);
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const [key, setKey] = useState<StateParam>({ isValid: false, u8a: new Uint8Array([]) });
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const [value, setValue] = useState<StateParam>({ isValid: false, u8a: new Uint8Array([]) });
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useEffect((): void => {
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const isValid = key.isValid && value.isValid;
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onChange && onChange({
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isValid,
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value: u8aConcat(
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key.u8a,
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value.u8a
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)
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});
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setIsValid(isValid);
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}, [key, onChange, value]);
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const _onChangeKey = useCallback(
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(key: string): void => setKey(createParam(key)),
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[]
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);
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const _onChangeValue = useCallback(
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(value: string): void => setValue(createParam(value)),
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[]
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);
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return (
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<Bare className={className}>
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<Input
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className='medium'
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isDisabled={isDisabled}
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isError={!key.isValid}
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label={label}
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onChange={_onChangeKey}
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placeholder='0x...'
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type='text'
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withLabel={withLabel}
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/>
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<Input
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className='medium'
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isDisabled={isDisabled}
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isError={!value.isValid}
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onChange={_onChangeValue}
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onEnter={onEnter}
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placeholder='0x...'
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type='text'
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withLabel={withLabel}
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/>
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</Bare>
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);
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}
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export default React.memo(KeyValue);
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