115 lines
3.2 KiB
JavaScript
115 lines
3.2 KiB
JavaScript
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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import BigNumber from 'bignumber.js';
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import React, { Component, PropTypes } from 'react';
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import { MenuItem } from 'material-ui';
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import { isEqual } from 'lodash';
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import { Select } from '~/ui/Form';
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import TokenImage from '~/ui/TokenImage';
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import styles from '../transfer.css';
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export default class TokenSelect extends Component {
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static contextTypes = {
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api: PropTypes.object
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};
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static propTypes = {
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onChange: PropTypes.func.isRequired,
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balance: PropTypes.object.isRequired,
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tag: PropTypes.string.isRequired
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};
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componentWillMount () {
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this.computeTokens();
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}
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componentWillReceiveProps (nextProps) {
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const prevTokens = this.props.balance.tokens.map((t) => `${t.token.tag}_${t.value.toNumber()}`);
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const nextTokens = nextProps.balance.tokens.map((t) => `${t.token.tag}_${t.value.toNumber()}`);
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if (!isEqual(prevTokens, nextTokens)) {
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this.computeTokens(nextProps);
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}
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}
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computeTokens (props = this.props) {
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const { api } = this.context;
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const { balance } = this.props;
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const items = balance.tokens
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.filter((token, index) => !index || token.value.gt(0))
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.map((balance, index) => {
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const token = balance.token;
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const isEth = index === 0;
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let value = 0;
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if (isEth) {
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value = api.util.fromWei(balance.value).toFormat(3);
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} else {
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const format = balance.token.format || 1;
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const decimals = format === 1 ? 0 : Math.min(3, Math.floor(format / 10));
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value = new BigNumber(balance.value).div(format).toFormat(decimals);
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}
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const label = (
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<div className={ styles.token }>
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<TokenImage token={ token } />
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<div className={ styles.tokenname }>
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{ token.name }
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</div>
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<div className={ styles.tokenbalance }>
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{ value }<small> { token.tag }</small>
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</div>
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</div>
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);
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return (
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<MenuItem
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key={ `${index}_${token.tag}` }
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value={ token.tag }
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label={ label }
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>
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{ label }
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</MenuItem>
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);
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});
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this.setState({ items });
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}
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render () {
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const { tag, onChange } = this.props;
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const { items } = this.state;
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return (
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<Select
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className={ styles.tokenSelect }
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label='type of token transfer'
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hint='type of token to transfer'
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value={ tag }
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onChange={ onChange }
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>
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{ items }
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</Select>
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);
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}
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}
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