90 lines
2.0 KiB
TypeScript
90 lines
2.0 KiB
TypeScript
// Copyright 2017-2019 @polkadot/app-explorer authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { I18nProps } from '@polkadot/ui-app/types';
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import React from 'react';
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import styled from 'styled-components';
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import { Button, FilterOverlay, Input, TxComponent } from '@polkadot/ui-app';
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import { isHex } from '@polkadot/util';
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import translate from './translate';
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type Props = I18nProps & {
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value?: string
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};
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type State = {
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value: string
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isNumber: boolean,
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isValid: boolean
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};
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class Query extends TxComponent<Props, State> {
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constructor (props: Props) {
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super(props);
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const { value } = this.props;
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this.state = this.stateFromValue(value || '');
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}
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render () {
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const { className, t } = this.props;
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const { value, isValid } = this.state;
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return (
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<FilterOverlay className={className}>
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<Input
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className='explorer--query'
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defaultValue={this.props.value}
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isError={!isValid && value.length !== 0}
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placeholder={t('block hash or number to query')}
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onChange={this.setHash}
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onEnter={this.submit}
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withLabel={false}
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>
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<Button
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icon='play'
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isPrimary
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onClick={this.onQuery}
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ref={this.button}
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/>
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</Input>
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</FilterOverlay>
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);
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}
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private setHash = (value: string) => {
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this.setState(
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this.stateFromValue(value)
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);
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}
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private onQuery = (): void => {
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const { isValid, value } = this.state;
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if (isValid && value.length !== 0) {
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window.location.hash = `/explorer/query/${value}`;
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}
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}
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private stateFromValue (value: string): State {
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const isValidHex = isHex(value, 256);
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const isNumber = !isValidHex && /^\d+$/.test(value);
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return {
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value,
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isNumber,
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isValid: isValidHex || isNumber
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};
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}
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}
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export default translate(styled(Query)`
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.explorer--query {
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width: 20em;
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}
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`);
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