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const inherits = require('util').inherits
const Component = require('react').Component
const h = require('react-hyperscript')
const connect = require('react-redux').connect
const actions = require('../../ui/app/actions')
const Tooltip = require('./components/tooltip.js')
const ethUtil = require('ethereumjs-util')
const Copyable = require('./components/copyable')
const addressSummary = require('./util').addressSummary
module.exports = connect(mapStateToProps)(AddSuggestedTokenScreen)
function mapStateToProps (state) {
return {
identities: state.metamask.identities,
suggestedTokens: state.metamask.suggestedTokens,
}
}
inherits(AddSuggestedTokenScreen, Component)
function AddSuggestedTokenScreen () {
this.state = {
warning: null,
}
Component.call(this)
}
AddSuggestedTokenScreen.prototype.render = function () {
const state = this.state
const props = this.props
const { warning } = state
const key = Object.keys(props.suggestedTokens)[0]
const { address, symbol, decimals } = props.suggestedTokens[key]
return (
h('.flex-column.flex-grow', [
// subtitle and nav
h('.section-title.flex-row.flex-center', [
h('h2.page-subtitle', 'Add Suggested Token'),
]),
h('.error', {
style: {
display: warning ? 'block' : 'none',
padding: '0 20px',
textAlign: 'center',
},
}, warning),
// conf view
h('.flex-column.flex-justify-center.flex-grow.select-none', [
h('.flex-space-around', {
style: {
padding: '20px',
},
}, [
h('div', [
h(Tooltip, {
position: 'top',
title: 'The contract of the actual token contract. Click for more info.',
}, [
h('a', {
style: { fontWeight: 'bold', paddingRight: '10px'},
href: 'https://support.metamask.io/kb/article/24-what-is-a-token-contract-address',
target: '_blank',
}, [
h('span', 'Token Contract Address '),
h('i.fa.fa-question-circle'),
]),
]),
]),
h('div', {
style: { display: 'flex' },
}, [
h(Copyable, {
value: ethUtil.toChecksumAddress(address),
}, [
h('span#token-address', {
style: {
width: 'inherit',
flex: '1 0 auto',
height: '30px',
margin: '8px',
display: 'flex',
},
}, addressSummary(address, 24, 4, false)),
]),
]),
h('div', [
h('span', {
style: { fontWeight: 'bold', paddingRight: '10px'},
}, 'Token Symbol'),
]),
h('div', { style: {display: 'flex'} }, [
h('p#token_symbol', {
style: {
width: 'inherit',
flex: '1 0 auto',
height: '30px',
margin: '8px',
},
}, symbol),
]),
h('div', [
h('span', {
style: { fontWeight: 'bold', paddingRight: '10px'},
}, 'Decimals of Precision'),
]),
h('div', { style: {display: 'flex'} }, [
h('p#token_decimals', {
type: 'number',
style: {
width: 'inherit',
flex: '1 0 auto',
height: '30px',
margin: '8px',
},
}, decimals),
]),
h('button', {
style: {
alignSelf: 'center',
margin: '8px',
},
onClick: (event) => {
this.props.dispatch(actions.removeSuggestedTokens())
},
}, 'Cancel'),
h('button', {
style: {
alignSelf: 'center',
margin: '8px',
},
onClick: (event) => {
const valid = this.validateInputs({ address, symbol, decimals })
if (!valid) return
this.props.dispatch(actions.addToken(address.trim(), symbol.trim(), decimals))
.then(() => {
this.props.dispatch(actions.removeSuggestedTokens())
})
},
}, 'Add'),
]),
]),
])
)
}
AddSuggestedTokenScreen.prototype.componentWillMount = function () {
if (typeof global.ethereumProvider === 'undefined') return
}
AddSuggestedTokenScreen.prototype.validateInputs = function (opts) {
let msg = ''
const identitiesList = Object.keys(this.props.identities)
const { address, symbol, decimals } = opts
const standardAddress = ethUtil.addHexPrefix(address).toLowerCase()
const validAddress = ethUtil.isValidAddress(address)
if (!validAddress) {
msg += 'Address is invalid.'
}
const validDecimals = decimals >= 0 && decimals < 36
if (!validDecimals) {
msg += 'Decimals must be at least 0, and not over 36. '
}
const symbolLen = symbol.trim().length
const validSymbol = symbolLen > 0 && symbolLen < 10
if (!validSymbol) {
msg += 'Symbol must be between 0 and 10 characters.'
}
const ownAddress = identitiesList.includes(standardAddress)
if (ownAddress) {
msg = 'Personal address detected. Input the token contract address.'
}
const isValid = validAddress && validDecimals && !ownAddress
if (!isValid) {
this.setState({
warning: msg,
})
} else {
this.setState({ warning: null })
}
return isValid
}
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