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386 lines
11 KiB
386 lines
11 KiB
const inherits = require('util').inherits
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const Component = require('react').Component
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const classnames = require('classnames')
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const h = require('react-hyperscript')
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const connect = require('react-redux').connect
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const Fuse = require('fuse.js')
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const contractMap = require('eth-contract-metadata')
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const contractList = Object.entries(contractMap).map(([ _, tokenData]) => tokenData)
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const fuse = new Fuse(contractList, {
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shouldSort: true,
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threshold: 0.45,
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location: 0,
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distance: 100,
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maxPatternLength: 32,
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minMatchCharLength: 1,
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keys: ['address', 'name', 'symbol'],
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})
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const actions = require('./actions')
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// const Tooltip = require('./components/tooltip.js')
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const ethUtil = require('ethereumjs-util')
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const abi = require('human-standard-token-abi')
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const Eth = require('ethjs-query')
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const EthContract = require('ethjs-contract')
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const emptyAddr = '0x0000000000000000000000000000000000000000'
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module.exports = connect(mapStateToProps, mapDispatchToProps)(AddTokenScreen)
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function mapStateToProps (state) {
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return {
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identities: state.metamask.identities,
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}
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}
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function mapDispatchToProps (dispatch) {
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return {
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goHome: () => dispatch(actions.goHome()),
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}
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}
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inherits(AddTokenScreen, Component)
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function AddTokenScreen () {
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this.state = {
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// warning: null,
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// address: null,
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// symbol: 'TOKEN',
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// decimals: 18,
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customAddress: '',
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customSymbol: '',
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customDecimals: 0,
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searchQuery: '',
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isCollapsed: true,
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selectedToken: {},
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}
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this.tokenAddressDidChange = this.tokenAddressDidChange.bind(this)
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Component.call(this)
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}
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AddTokenScreen.prototype.toggleToken = function (symbol) {
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const { selectedToken } = this.state
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const { [symbol]: isSelected } = selectedToken
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this.setState({
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selectedToken: {
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...selectedToken,
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[symbol]: !isSelected,
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},
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})
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}
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AddTokenScreen.prototype.renderCustomForm = function () {
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const { customAddress, customSymbol, customDecimals } = this.state
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return !this.state.isCollapsed && (
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h('div.add-token__add-custom-form', [
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h('div.add-token__add-custom-field', [
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h('div.add-token__add-custom-label', 'Token Address'),
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h('input.add-token__add-custom-input', {
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type: 'text',
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onChange: this.tokenAddressDidChange,
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value: customAddress,
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}),
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]),
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h('div.add-token__add-custom-field', [
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h('div.add-token__add-custom-label', 'Token Symbol'),
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h('input.add-token__add-custom-input', {
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type: 'text',
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value: customSymbol,
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disabled: true,
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}),
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]),
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h('div.add-token__add-custom-field', [
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h('div.add-token__add-custom-label', 'Decimals of Precision'),
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h('input.add-token__add-custom-input', {
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type: 'number',
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value: customDecimals,
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disabled: true,
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}),
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]),
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])
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)
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}
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AddTokenScreen.prototype.renderTokenList = function () {
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const { searchQuery = '', selectedToken } = this.state
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const results = searchQuery
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? fuse.search(searchQuery) || []
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: contractList
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return Array(6).fill(undefined)
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.map((_, i) => {
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const { logo, symbol, name } = results[i] || {}
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return Boolean(logo || symbol || name) && (
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h('div.add-token__token-wrapper', {
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className: classnames('add-token__token-wrapper', {
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'add-token__token-wrapper--selected': selectedToken[symbol],
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}),
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onClick: () => this.toggleToken(symbol),
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}, [
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h('div.add-token__token-icon', {
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style: {
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backgroundImage: `url(images/contract/${logo})`,
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},
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}),
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h('div.add-token__token-data', [
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h('div.add-token__token-symbol', symbol),
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h('div.add-token__token-name', name),
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]),
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])
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)
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})
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}
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AddTokenScreen.prototype.render = function () {
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const { isCollapsed } = this.state
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const { goHome } = this.props
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return (
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h('div.add-token', [
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h('div.add-token__wrapper', [
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h('div.add-token__title-container', [
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h('div.add-token__title', 'Add Token'),
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h('div.add-token__description', 'Keep track of the tokens you’ve bought with your MetaMask account. If you bought tokens using a different account, those tokens will not appear here.'),
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h('div.add-token__description', 'Search for tokens or select from our list of popular tokens.'),
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]),
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h('div.add-token__content-container', [
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h('div.add-token__input-container', [
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h('input.add-token__input', {
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type: 'text',
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placeholder: 'Search',
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onChange: e => this.setState({ searchQuery: e.target.value }),
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}),
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]),
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h(
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'div.add-token__token-icons-container',
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this.renderTokenList(),
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),
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]),
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h('div.add-token__footers', [
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h('div.add-token__add-custom', {
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onClick: () => this.setState({ isCollapsed: !isCollapsed }),
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}, 'Add custom token'),
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this.renderCustomForm(),
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]),
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]),
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h('div.add-token__buttons', [
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h('button.btn-secondary', 'Next'),
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h('button.btn-tertiary', {
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onClick: goHome,
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}, 'Cancel'),
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]),
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])
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)
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}
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// AddTokenScreen.prototype.render = function () {
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// const state = this.state
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// const props = this.props
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// const { warning, symbol, decimals } = state
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// return (
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// h('.flex-column.flex-grow', [
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// // subtitle and nav
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// h('.section-title.flex-row.flex-center', [
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// h('i.fa.fa-arrow-left.fa-lg.cursor-pointer', {
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// onClick: (event) => {
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// props.dispatch(actions.goHome())
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// },
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// }),
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// h('h2.page-subtitle', 'Add Token'),
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// ]),
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// h('.error', {
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// style: {
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// display: warning ? 'block' : 'none',
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// padding: '0 20px',
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// textAlign: 'center',
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// },
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// }, warning),
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// // conf view
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// h('.flex-column.flex-justify-center.flex-grow.select-none', [
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// h('.flex-space-around', {
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// style: {
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// padding: '20px',
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// },
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// }, [
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// h('div', [
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// h(Tooltip, {
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// position: 'top',
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// title: 'The contract of the actual token contract. Click for more info.',
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// }, [
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// h('a', {
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// style: { fontWeight: 'bold', paddingRight: '10px'},
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// href: 'https://consensyssupport.happyfox.com/staff/kb/article/24-what-is-a-token-contract-address',
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// target: '_blank',
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// }, [
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// h('span', 'Token Contract Address '),
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// h('i.fa.fa-question-circle'),
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// ]),
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// ]),
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// ]),
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// h('section.flex-row.flex-center', [
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// h('input#token-address', {
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// name: 'address',
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// placeholder: 'Token Contract Address',
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// onChange: this.tokenAddressDidChange.bind(this),
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// style: {
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// width: 'inherit',
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// flex: '1 0 auto',
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// height: '30px',
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// margin: '8px',
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// },
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// }),
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// ]),
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// h('div', [
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// h('span', {
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// style: { fontWeight: 'bold', paddingRight: '10px'},
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// }, 'Token Symbol'),
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// ]),
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// h('div', { style: {display: 'flex'} }, [
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// h('input#token_symbol', {
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// placeholder: `Like "ETH"`,
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// value: symbol,
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// style: {
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// width: 'inherit',
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// flex: '1 0 auto',
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// height: '30px',
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// margin: '8px',
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// },
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// onChange: (event) => {
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// var element = event.target
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// var symbol = element.value
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// this.setState({ symbol })
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// },
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// }),
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// ]),
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// h('div', [
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// h('span', {
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// style: { fontWeight: 'bold', paddingRight: '10px'},
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// }, 'Decimals of Precision'),
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// ]),
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// h('div', { style: {display: 'flex'} }, [
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// h('input#token_decimals', {
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// value: decimals,
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// type: 'number',
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// min: 0,
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// max: 36,
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// style: {
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// width: 'inherit',
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// flex: '1 0 auto',
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// height: '30px',
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// margin: '8px',
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// },
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// onChange: (event) => {
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// var element = event.target
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// var decimals = element.value.trim()
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// this.setState({ decimals })
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// },
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// }),
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// ]),
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// h('button', {
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// style: {
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// alignSelf: 'center',
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// },
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// onClick: (event) => {
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// const valid = this.validateInputs()
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// if (!valid) return
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// const { address, symbol, decimals } = this.state
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// this.props.dispatch(actions.addToken(address.trim(), symbol.trim(), decimals))
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// },
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// }, 'Add'),
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// ]),
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// ]),
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// ])
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// )
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// }
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AddTokenScreen.prototype.componentWillMount = function () {
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if (typeof global.ethereumProvider === 'undefined') return
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this.eth = new Eth(global.ethereumProvider)
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this.contract = new EthContract(this.eth)
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this.TokenContract = this.contract(abi)
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}
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AddTokenScreen.prototype.tokenAddressDidChange = function (e) {
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const customAddress = e.target.value.trim()
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this.setState({ customAddress })
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if (ethUtil.isValidAddress(customAddress) && customAddress !== emptyAddr) {
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this.attemptToAutoFillTokenParams(customAddress)
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} else {
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this.setState({
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customSymbol: '',
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customDecimals: 0,
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})
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}
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}
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AddTokenScreen.prototype.validateInputs = function () {
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let msg = ''
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const state = this.state
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const identitiesList = Object.keys(this.props.identities)
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const { address, symbol, decimals } = state
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const standardAddress = ethUtil.addHexPrefix(address).toLowerCase()
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const validAddress = ethUtil.isValidAddress(address)
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if (!validAddress) {
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msg += 'Address is invalid. '
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}
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const validDecimals = decimals >= 0 && decimals < 36
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if (!validDecimals) {
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msg += 'Decimals must be at least 0, and not over 36. '
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}
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const symbolLen = symbol.trim().length
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const validSymbol = symbolLen > 0 && symbolLen < 10
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if (!validSymbol) {
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msg += 'Symbol must be between 0 and 10 characters.'
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}
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const ownAddress = identitiesList.includes(standardAddress)
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if (ownAddress) {
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msg = 'Personal address detected. Input the token contract address.'
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}
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const isValid = validAddress && validDecimals && !ownAddress
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if (!isValid) {
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this.setState({
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warning: msg,
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})
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} else {
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this.setState({ warning: null })
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}
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return isValid
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}
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AddTokenScreen.prototype.attemptToAutoFillTokenParams = async function (address) {
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const contract = this.TokenContract.at(address)
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const results = await Promise.all([
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contract.symbol(),
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contract.decimals(),
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])
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const [ symbol, decimals ] = results
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if (symbol && decimals) {
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this.setState({
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customSymbol: symbol[0],
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customDecimals: decimals[0].toString(),
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})
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}
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}
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