const { inherits } = require('util') const PersistentForm = require('../lib/persistent-form') const h = require('react-hyperscript') const connect = require('react-redux').connect const Identicon = require('./components/identicon') const FromDropdown = require('./components/send/from-dropdown') const ToAutoComplete = require('./components/send/to-autocomplete') const CurrencyDisplay = require('./components/send/currency-display') const MemoTextArea = require('./components/send/memo-textarea') const GasFeeDisplay = require('./components/send/gas-fee-display-v2') const { MIN_GAS_TOTAL } = require('./components/send/send-constants') const { showModal } = require('./actions') const { multiplyCurrencies, conversionGreaterThan, addCurrencies, } = require('./conversion-util') const { isValidAddress } = require('./util') module.exports = SendTransactionScreen inherits(SendTransactionScreen, PersistentForm) function SendTransactionScreen () { PersistentForm.call(this) this.state = { dropdownOpen: false, errors: { to: null, amount: null, }, } this.handleToChange = this.handleToChange.bind(this) this.handleAmountChange = this.handleAmountChange.bind(this) this.validateAmount = this.validateAmount.bind(this) } SendTransactionScreen.prototype.componentWillMount = function () { const { updateTokenExchangeRate, selectedToken = {}, getGasPrice, estimateGas, selectedAddress, data, updateGasTotal, } = this.props const { symbol } = selectedToken || {} const estimateGasParams = { from: selectedAddress, gas: '746a528800', } if (symbol) { updateTokenExchangeRate(symbol) Object.assign(estimateGasParams, { value: '0x0' }) } if (data) { Object.assign(estimateGasParams, { data }) } Promise .all([ getGasPrice(), estimateGas({ from: selectedAddress, gas: '746a528800', }), ]) .then(([gasPrice, gas]) => { const newGasTotal = multiplyCurrencies(gas, gasPrice, { toNumericBase: 'hex', multiplicandBase: 16, multiplierBase: 16, }) updateGasTotal(newGasTotal) }) } SendTransactionScreen.prototype.renderHeaderIcon = function () { const { selectedToken } = this.props return h('div.send-v2__send-header-icon-container', [ selectedToken ? h(Identicon, { diameter: 40, address: selectedToken.address, }) : h('img.send-v2__send-header-icon', { src: '../images/eth_logo.svg' }) ]) } SendTransactionScreen.prototype.renderTitle = function () { const { selectedToken } = this.props return h('div.send-v2__title', [selectedToken ? 'Send Tokens' : 'Send Funds']) } SendTransactionScreen.prototype.renderCopy = function () { const { selectedToken } = this.props const tokenText = selectedToken ? 'tokens' : 'ETH' return h('div.send-v2__form-header-copy', [ h('div.send-v2__copy', `Only send ${tokenText} to an Ethereum address.`), h('div.send-v2__copy', 'Sending to a different crytpocurrency that is not Ethereum may result in permanent loss.'), ]) } SendTransactionScreen.prototype.renderHeader = function () { return h('div', [ h('div.send-v2__header', {}, [ this.renderHeaderIcon(), h('div.send-v2__arrow-background', [ h('i.fa.fa-lg.fa-arrow-circle-right.send-v2__send-arrow-icon'), ]), h('div.send-v2__header-tip'), ]), ]) } SendTransactionScreen.prototype.renderErrorMessage = function(errorType) { const { errors } = this.props const errorMessage = errors[errorType]; return errorMessage ? h('div.send-v2__error', [ errorMessage ] ) : null } SendTransactionScreen.prototype.renderFromRow = function () { const { from, fromAccounts, conversionRate, setSelectedAddress, updateSendFrom, } = this.props const { dropdownOpen } = this.state return h('div.send-v2__form-row', [ h('div.send-v2__form-label', 'From:'), h('div.send-v2__form-field', [ h(FromDropdown, { dropdownOpen, accounts: fromAccounts, selectedAccount: from, onSelect: updateSendFrom, openDropdown: () => this.setState({ dropdownOpen: true }), closeDropdown: () => this.setState({ dropdownOpen: false }), conversionRate, }), ]), ]) } SendTransactionScreen.prototype.handleToChange = function (event) { const { updateSendTo, updateSendErrors } = this.props const to = event.target.value let toError = null if (!to) { toError = 'Required' } else if (!isValidAddress(to)) { toError = 'Recipient address is invalid.' } updateSendTo(to) updateSendErrors({ to: toError }) } SendTransactionScreen.prototype.renderToRow = function () { const { toAccounts, errors } = this.props const { to } = this.state return h('div.send-v2__form-row', [ h('div.send-v2__form-label', [ 'To:', this.renderErrorMessage('to'), ]), h('div.send-v2__form-field', [ h(ToAutoComplete, { to, accounts: toAccounts, onChange: this.handleToChange, inError: Boolean(errors.to), }), ]), ]) } SendTransactionScreen.prototype.handleAmountChange = function (value) { const amount = value const { updateSendAmount } = this.props updateSendAmount(amount) } SendTransactionScreen.prototype.validateAmount = function (value) { const { from: { balance }, updateSendErrors, amountConversionRate, conversionRate, primaryCurrency, toCurrency, selectedToken, gasTotal, } = this.props const amount = value let amountError = null const totalAmount = addCurrencies(amount, gasTotal, { aBase: 16, bBase: 16, toNumericBase: 'hex', }) const sufficientBalance = conversionGreaterThan( { value: balance, fromNumericBase: 'hex', fromCurrency: primaryCurrency, conversionRate, }, { value: totalAmount, fromNumericBase: 'hex', conversionRate: amountConversionRate, fromCurrency: selectedToken || primaryCurrency, conversionRate: amountConversionRate, }, ) const amountLessThanZero = conversionGreaterThan( { value: 0, fromNumericBase: 'dec' }, { value: amount, fromNumericBase: 'hex' }, ) if (!sufficientBalance) { amountError = 'Insufficient funds.' } else if (amountLessThanZero) { amountError = 'Can not send negative amounts of ETH.' } updateSendErrors({ amount: amountError }) } SendTransactionScreen.prototype.renderAmountRow = function () { const { selectedToken, primaryCurrency = 'ETH', convertedCurrency, amountConversionRate, errors, } = this.props const { amount } = this.state return h('div.send-v2__form-row', [ h('div.send-v2__form-label', [ 'Amount:', this.renderErrorMessage('amount'), ]), h('div.send-v2__form-field', [ h(CurrencyDisplay, { inError: Boolean(errors.amount), primaryCurrency, convertedCurrency, selectedToken, value: amount, conversionRate: amountConversionRate, handleChange: this.handleAmountChange, validate: this.validateAmount, }), ]), ]) } SendTransactionScreen.prototype.renderGasRow = function () { const { conversionRate, convertedCurrency, showCustomizeGasModal, gasTotal = MIN_GAS_TOTAL, } = this.props return h('div.send-v2__form-row', [ h('div.send-v2__form-label', 'Gas fee:'), h('div.send-v2__form-field', [ h(GasFeeDisplay, { gasTotal, conversionRate, convertedCurrency, onClick: showCustomizeGasModal, }), h('div.send-v2__sliders-icon-container', { onClick: showCustomizeGasModal, }, [ h('i.fa.fa-sliders.send-v2__sliders-icon'), ]), ]), ]) } SendTransactionScreen.prototype.renderMemoRow = function () { const { updateSendMemo } = this.props const { memo } = this.state return h('div.send-v2__form-row', [ h('div.send-v2__form-label', 'Transaction Memo:'), h('div.send-v2__form-field', [ h(MemoTextArea, { memo, onChange: (event) => updateSendMemo(event.target.value), }), ]), ]) } SendTransactionScreen.prototype.renderForm = function () { return h('div.send-v2__form', {}, [ h('div.sendV2__form-header', [ this.renderTitle(), this.renderCopy(), ]), this.renderFromRow(), this.renderToRow(), this.renderAmountRow(), this.renderGasRow(), this.renderMemoRow(), ]) } SendTransactionScreen.prototype.renderFooter = function () { const { goHome } = this.props return h('div.send-v2__footer', [ h('button.send-v2__cancel-btn', { onClick: goHome, }, 'Cancel'), h('button.send-v2__next-btn', { onClick: event => this.onSubmit(event), }, 'Next'), ]) } SendTransactionScreen.prototype.render = function () { return ( h('div.send-v2__container', [ this.renderHeader(), this.renderForm(), this.renderFooter(), ]) ) } SendTransactionScreen.prototype.addToAddressBookIfNew = function (newAddress) { const { toAccounts, addToAddressBook } = this.props if (!toAccounts.find(({ address }) => newAddress === address)) { // TODO: nickname, i.e. addToAddressBook(recipient, nickname) addToAddressBook(newAddress) } } SendTransactionScreen.prototype.onSubmit = function (event) { event.preventDefault() const { from: {address: from}, to, amount, gasLimit: gas, gasPrice, signTokenTx, signTx, selectedToken, toAccounts, } = this.props this.addToAddressBookIfNew(to) const txParams = { from, value: '0', gas, gasPrice, } if (!selectedToken) { txParams.value = amount txParams.to = to } selectedToken ? signTokenTx(selectedToken.address, to, amount, txParams) : signTx(txParams) }