399 lines
12 KiB
JavaScript
399 lines
12 KiB
JavaScript
const Component = require('react').Component
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const { connect } = require('react-redux')
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const h = require('react-hyperscript')
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const inherits = require('util').inherits
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const abi = require('human-standard-token-abi')
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const abiDecoder = require('abi-decoder')
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abiDecoder.addABI(abi)
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const actions = require('../../actions')
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const clone = require('clone')
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const Identicon = require('../identicon')
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const ethUtil = require('ethereumjs-util')
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const BN = ethUtil.BN
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const hexToBn = require('../../../../app/scripts/lib/hex-to-bn')
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const { conversionUtil } = require('../../conversion-util')
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const MIN_GAS_PRICE_GWEI_BN = new BN(1)
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const GWEI_FACTOR = new BN(1e9)
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const MIN_GAS_PRICE_BN = MIN_GAS_PRICE_GWEI_BN.mul(GWEI_FACTOR)
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module.exports = connect(mapStateToProps, mapDispatchToProps)(ConfirmSendToken)
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function mapStateToProps (state, ownProps) {
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const { token: { symbol }, txData } = ownProps
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const { txParams } = txData || {}
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const tokenData = txParams.data && abiDecoder.decodeMethod(txParams.data)
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const {
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conversionRate,
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identities,
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} = state.metamask
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const accounts = state.metamask.accounts
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const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0]
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const tokenExchangeRates = state.metamask.tokenExchangeRates
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const pair = `${symbol.toLowerCase()}_eth`
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const { rate: tokenExchangeRate = 0 } = tokenExchangeRates[pair] || {}
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return {
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conversionRate,
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identities,
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selectedAddress,
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tokenExchangeRate,
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tokenData: tokenData || {},
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}
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}
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function mapDispatchToProps (dispatch, ownProps) {
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const { token: { symbol } } = ownProps
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return {
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backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)),
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cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
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updateTokenExchangeRate: () => dispatch(actions.updateTokenExchangeRate(symbol)),
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}
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}
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inherits(ConfirmSendToken, Component)
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function ConfirmSendToken () {
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Component.call(this)
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this.state = {}
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this.onSubmit = this.onSubmit.bind(this)
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}
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ConfirmSendToken.prototype.componentWillMount = function () {
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this.props.updateTokenExchangeRate()
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}
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ConfirmSendToken.prototype.getAmount = function () {
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const { conversionRate, tokenExchangeRate, token, tokenData } = this.props
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const { params = [] } = tokenData
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const { value } = params[1] || {}
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const { decimals } = token
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const multiplier = Math.pow(10, Number(decimals || 0))
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const sendTokenAmount = Number(value / multiplier)
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return {
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fiat: tokenExchangeRate
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? +(sendTokenAmount * tokenExchangeRate * conversionRate).toFixed(2)
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: null,
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token: +sendTokenAmount.toFixed(decimals),
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}
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}
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ConfirmSendToken.prototype.getGasFee = function () {
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const { conversionRate, tokenExchangeRate, token } = this.props
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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const { decimals } = token
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// Gas
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const gas = txParams.gas
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const gasBn = hexToBn(gas)
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// Gas Price
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const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_BN.toString(16)
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const gasPriceBn = hexToBn(gasPrice)
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const txFeeBn = gasBn.mul(gasPriceBn)
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const USD = conversionUtil(txFeeBn, {
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fromNumericBase: 'BN',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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fromCurrency: 'ETH',
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toCurrency: 'USD',
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numberOfDecimals: 2,
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conversionRate,
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})
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const ETH = conversionUtil(txFeeBn, {
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fromNumericBase: 'BN',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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fromCurrency: 'ETH',
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toCurrency: 'ETH',
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numberOfDecimals: 6,
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conversionRate,
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})
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return {
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fiat: +Number(USD).toFixed(2),
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eth: ETH,
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token: tokenExchangeRate
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? +(ETH * tokenExchangeRate).toFixed(decimals)
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: null,
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}
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}
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ConfirmSendToken.prototype.getData = function () {
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const { identities, tokenData } = this.props
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const { params = [] } = tokenData
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const { value } = params[0] || {}
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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return {
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from: {
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address: txParams.from,
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name: identities[txParams.from].name,
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},
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to: {
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address: txParams.to,
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name: identities[value] ? identities[value].name : 'New Recipient',
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},
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memo: txParams.memo || '',
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}
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}
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ConfirmSendToken.prototype.renderHeroAmount = function () {
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const { token: { symbol } } = this.props
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const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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const { memo = '' } = txParams
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return fiatAmount
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? (
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h('div.confirm-send-token__hero-amount-wrapper', [
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h('h3.flex-center.confirm-screen-send-amount', `$${fiatAmount}`),
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h('h3.flex-center.confirm-screen-send-amount-currency', 'USD'),
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h('div.flex-center.confirm-memo-wrapper', [
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h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
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]),
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])
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)
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: (
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h('div.confirm-send-token__hero-amount-wrapper', [
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h('h3.flex-center.confirm-screen-send-amount', tokenAmount),
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h('h3.flex-center.confirm-screen-send-amount-currency', symbol),
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h('div.flex-center.confirm-memo-wrapper', [
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h('h3.confirm-screen-send-memo', [ memo ? `"${memo}"` : '' ]),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.renderGasFee = function () {
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const { token: { symbol } } = this.props
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const { fiat: fiatGas, token: tokenGas, eth: ethGas } = this.getGasFee()
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return (
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h('section.flex-row.flex-center.confirm-screen-row', [
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h('span.confirm-screen-label.confirm-screen-section-column', [ 'Gas Fee' ]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', `$${fiatGas} USD`),
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h(
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'div.confirm-screen-row-detail',
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tokenGas ? `${tokenGas} ${symbol}` : `${ethGas} ETH`
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),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.renderTotalPlusGas = function () {
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const { token: { symbol } } = this.props
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const { fiat: fiatAmount, token: tokenAmount } = this.getAmount()
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const { fiat: fiatGas, token: tokenGas } = this.getGasFee()
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return fiatAmount && fiatGas
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? (
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h('section.flex-row.flex-center.confirm-screen-total-box ', [
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h('div.confirm-screen-section-column', [
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h('span.confirm-screen-label', [ 'Total ' ]),
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h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]),
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]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', `$${fiatAmount + fiatGas} USD`),
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h('div.confirm-screen-row-detail', `${tokenAmount + tokenGas} ${symbol}`),
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]),
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])
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)
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: (
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h('section.flex-row.flex-center.confirm-screen-total-box ', [
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h('div.confirm-screen-section-column', [
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h('span.confirm-screen-label', [ 'Total ' ]),
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h('div.confirm-screen-total-box__subtitle', [ 'Amount + Gas' ]),
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]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', `${tokenAmount} ${symbol}`),
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h('div.confirm-screen-row-detail', `+ ${fiatGas} USD Gas`),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.render = function () {
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const { backToAccountDetail, selectedAddress } = this.props
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const txMeta = this.gatherTxMeta()
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const txParams = txMeta.txParams || {}
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const {
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from: {
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address: fromAddress,
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name: fromName,
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},
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to: {
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address: toAddress,
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name: toName,
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},
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} = this.getData()
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this.inputs = []
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return (
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h('div.confirm-screen-container', {
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style: { minWidth: '355px' },
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}, [
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// Main Send token Card
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h('div.confirm-screen-wrapper.flex-column.flex-grow', [
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h('h3.flex-center.confirm-screen-header', [
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h('button.confirm-screen-back-button', {
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onClick: () => backToAccountDetail(selectedAddress),
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}, 'BACK'),
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h('div.confirm-screen-title', 'Confirm Transaction'),
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h('div.confirm-screen-header-tip'),
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]),
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h('div.flex-row.flex-center.confirm-screen-identicons', [
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h('div.confirm-screen-account-wrapper', [
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h(
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Identicon,
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{
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address: fromAddress,
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diameter: 60,
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},
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),
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h('span.confirm-screen-account-name', fromName),
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// h('span.confirm-screen-account-number', fromAddress.slice(fromAddress.length - 4)),
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]),
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h('i.fa.fa-arrow-right.fa-lg'),
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h('div.confirm-screen-account-wrapper', [
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h(
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Identicon,
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{
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address: txParams.to,
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diameter: 60,
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},
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),
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h('span.confirm-screen-account-name', toName),
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// h('span.confirm-screen-account-number', toAddress.slice(toAddress.length - 4)),
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]),
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]),
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// h('h3.flex-center.confirm-screen-sending-to-message', {
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// style: {
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// textAlign: 'center',
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// fontSize: '16px',
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// },
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// }, [
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// `You're sending to Recipient ...${toAddress.slice(toAddress.length - 4)}`,
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// ]),
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this.renderHeroAmount(),
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h('div.confirm-screen-rows', [
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h('section.flex-row.flex-center.confirm-screen-row', [
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h('span.confirm-screen-label.confirm-screen-section-column', [ 'From' ]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', fromName),
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h('div.confirm-screen-row-detail', `...${fromAddress.slice(fromAddress.length - 4)}`),
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]),
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]),
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h('section.flex-row.flex-center.confirm-screen-row', [
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h('span.confirm-screen-label.confirm-screen-section-column', [ 'To' ]),
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h('div.confirm-screen-section-column', [
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h('div.confirm-screen-row-info', toName),
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h('div.confirm-screen-row-detail', `...${toAddress.slice(toAddress.length - 4)}`),
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]),
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]),
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this.renderGasFee(),
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this.renderTotalPlusGas(),
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]),
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]),
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h('form#pending-tx-form', {
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onSubmit: this.onSubmit,
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}, [
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// Cancel Button
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h('div.cancel.btn-light.confirm-screen-cancel-button', {
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onClick: (event) => this.cancel(event, txMeta),
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}, 'CANCEL'),
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// Accept Button
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h('button.confirm-screen-confirm-button', ['CONFIRM']),
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]),
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])
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)
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}
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ConfirmSendToken.prototype.onSubmit = function (event) {
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event.preventDefault()
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const txMeta = this.gatherTxMeta()
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const valid = this.checkValidity()
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this.setState({ valid, submitting: true })
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if (valid && this.verifyGasParams()) {
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this.props.sendTransaction(txMeta, event)
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} else {
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this.props.dispatch(actions.displayWarning('Invalid Gas Parameters'))
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this.setState({ submitting: false })
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}
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}
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ConfirmSendToken.prototype.cancel = function (event, txMeta) {
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event.preventDefault()
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this.props.cancelTransaction(txMeta)
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}
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ConfirmSendToken.prototype.checkValidity = function () {
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const form = this.getFormEl()
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const valid = form.checkValidity()
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return valid
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}
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ConfirmSendToken.prototype.getFormEl = function () {
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const form = document.querySelector('form#pending-tx-form')
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// Stub out form for unit tests:
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if (!form) {
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return { checkValidity () { return true } }
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}
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return form
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}
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// After a customizable state value has been updated,
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ConfirmSendToken.prototype.gatherTxMeta = function () {
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const props = this.props
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const state = this.state
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const txData = clone(state.txData) || clone(props.txData)
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// log.debug(`UI has defaulted to tx meta ${JSON.stringify(txData)}`)
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return txData
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}
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ConfirmSendToken.prototype.verifyGasParams = function () {
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// We call this in case the gas has not been modified at all
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if (!this.state) { return true }
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return (
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this._notZeroOrEmptyString(this.state.gas) &&
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this._notZeroOrEmptyString(this.state.gasPrice)
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)
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}
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ConfirmSendToken.prototype._notZeroOrEmptyString = function (obj) {
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return obj !== '' && obj !== '0x0'
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}
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ConfirmSendToken.prototype.bnMultiplyByFraction = function (targetBN, numerator, denominator) {
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const numBN = new BN(numerator)
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const denomBN = new BN(denominator)
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return targetBN.mul(numBN).div(denomBN)
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}
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