A Metamask fork with Infura removed and default networks editable
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ciphermask/ui/app/send.js

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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 EnsInput = require('./components/ens-input')
const GasTooltip = require('./components/send/gas-tooltip')
const CurrencyToggle = require('./components/send/currency-toggle')
const GasFeeDisplay = require('./components/send/gas-fee-display')
const { getSelectedIdentity } = require('./selectors')
const {
showAccountsPage,
backToAccountDetail,
displayWarning,
hideWarning,
addToAddressBook,
signTx,
estimateGas,
getGasPrice,
} = require('./actions')
const { stripHexPrefix, addHexPrefix } = require('ethereumjs-util')
const { isHex, numericBalance, isValidAddress, allNull } = require('./util')
const { conversionUtil, conversionGreaterThan } = require('./conversion-util')
module.exports = connect(mapStateToProps)(SendTransactionScreen)
function mapStateToProps (state) {
const {
selectedAddress: address,
accounts,
identities,
network,
addressBook,
conversionRate,
currentBlockGasLimit: blockGasLimit,
} = state.metamask
const { warning } = state.appState
const selectedIdentity = getSelectedIdentity(state)
const account = accounts[address]
return {
address,
accounts,
identities,
network,
addressBook,
conversionRate,
blockGasLimit,
warning,
selectedIdentity,
error: warning && warning.split('.')[0],
account,
identity: identities[address],
balance: account ? account.balance : null,
}
}
inherits(SendTransactionScreen, PersistentForm)
function SendTransactionScreen () {
PersistentForm.call(this)
// [WIP] These are the bare minimum of tx props needed to sign a transaction
// We will need a few more for contract-related interactions
this.state = {
newTx: {
from: '',
to: '',
amountToSend: '0x0',
gasPrice: null,
gas: null,
amount: '0x0',
txData: null,
memo: '',
},
activeCurrency: 'USD',
tooltipIsOpen: false,
errors: {},
isValid: false,
}
this.back = this.back.bind(this)
this.closeTooltip = this.closeTooltip.bind(this)
this.onSubmit = this.onSubmit.bind(this)
this.setActiveCurrency = this.setActiveCurrency.bind(this)
this.toggleTooltip = this.toggleTooltip.bind(this)
this.validate = this.validate.bind(this)
this.getAmountToSend = this.getAmountToSend.bind(this)
this.setErrorsFor = this.setErrorsFor.bind(this)
this.clearErrorsFor = this.clearErrorsFor.bind(this)
this.renderFromInput = this.renderFromInput.bind(this)
this.renderToInput = this.renderToInput.bind(this)
this.renderAmountInput = this.renderAmountInput.bind(this)
this.renderGasInput = this.renderGasInput.bind(this)
this.renderMemoInput = this.renderMemoInput.bind(this)
this.renderErrorMessage = this.renderErrorMessage.bind(this)
}
SendTransactionScreen.prototype.componentWillMount = function () {
const { newTx } = this.state
const { address } = this.props
Promise.all([
this.props.dispatch(getGasPrice()),
this.props.dispatch(estimateGas({
from: address,
gas: '746a528800',
})),
])
.then(([blockGasPrice, estimatedGas]) => {
console.log({ blockGasPrice, estimatedGas})
this.setState({
newTx: {
...newTx,
gasPrice: blockGasPrice,
gas: estimatedGas,
},
})
})
}
SendTransactionScreen.prototype.renderErrorMessage = function(errorType, warning) {
const { errors } = this.state
const errorMessage = errors[errorType];
return errorMessage || warning
? h('div.send-screen-input-wrapper__error-message', [ errorMessage || warning ])
: null
}
SendTransactionScreen.prototype.renderFromInput = function (from, identities) {
return h('div.send-screen-input-wrapper', [
h('div', 'From:'),
h('input.large-input.send-screen-input', {
list: 'accounts',
placeholder: 'Account',
value: from,
onChange: (event) => {
this.setState({
newTx: {
...this.state.newTx,
from: event.target.value,
},
})
},
onBlur: () => this.setErrorsFor('from'),
onFocus: event => {
this.clearErrorsFor('from')
this.state.newTx.from && event.target.select()
},
}),
h('datalist#accounts', [
Object.entries(identities).map(([key, { address, name }]) => {
return h('option', {
value: address,
label: name,
key: address,
})
}),
]),
this.renderErrorMessage('from'),
])
}
SendTransactionScreen.prototype.renderToInput = function (to, identities, addressBook) {
return h('div.send-screen-input-wrapper', [
h('div', 'To:'),
h('input.large-input.send-screen-input', {
name: 'address',
list: 'addresses',
placeholder: 'Address',
value: to,
onChange: (event) => {
this.setState({
newTx: {
...this.state.newTx,
to: event.target.value,
},
})
},
onBlur: () => {
this.setErrorsFor('to')
},
onFocus: event => {
this.clearErrorsFor('to')
this.state.newTx.to && event.target.select()
},
}),
h('datalist#addresses', [
// Corresponds to the addresses owned.
...Object.entries(identities).map(([key, { address, name }]) => {
return h('option', {
value: address,
label: name,
key: address,
})
}),
// Corresponds to previously sent-to addresses.
...addressBook.map(({ address, name }) => {
return h('option', {
value: address,
label: name,
key: address,
})
}),
]),
this.renderErrorMessage('to'),
])
}
SendTransactionScreen.prototype.renderAmountInput = function (activeCurrency) {
return h('div.send-screen-input-wrapper', [
h('div.send-screen-amount-labels', [
h('span', 'Amount'),
h(CurrencyToggle, {
activeCurrency,
onClick: (newCurrency) => this.setActiveCurrency(newCurrency),
}), // holding on icon from design
]),
h('input.large-input.send-screen-input', {
placeholder: `0 ${activeCurrency}`,
type: 'number',
onChange: (event) => {
const amountToSend = event.target.value
? this.getAmountToSend(event.target.value)
: '0x0'
this.setState({
newTx: Object.assign(
this.state.newTx,
{
amount: event.target.value,
amountToSend: amountToSend,
}
),
})
},
onBlur: () => {
this.setErrorsFor('amount')
},
onFocus: () => this.clearErrorsFor('amount'),
}),
this.renderErrorMessage('amount'),
])
}
SendTransactionScreen.prototype.renderGasInput = function (gasPrice, gas, activeCurrency, conversionRate, blockGasLimit) {
return h('div.send-screen-input-wrapper', [
this.state.tooltipIsOpen && h(GasTooltip, {
className: 'send-tooltip',
gasPrice,
gasLimit: gas,
onClose: this.closeTooltip,
onFeeChange: ({gasLimit, gasPrice}) => {
this.setState({
newTx: {
...this.state.newTx,
gas: gasLimit,
gasPrice,
},
})
},
}),
h('div.send-screen-gas-labels', [
h('span', [
h('i.fa.fa-bolt'),
'Gas fee:',
]),
h('span', 'What\'s this?'),
]),
// TODO: handle loading time when switching to USD
h('div.large-input.send-screen-gas-input', {}, [
h(GasFeeDisplay, {
activeCurrency,
conversionRate,
gas,
gasPrice,
blockGasLimit,
}),
h('div.send-screen-gas-input-customize', {
onClick: this.toggleTooltip,
}, [
'Customize',
]),
]),
])
}
SendTransactionScreen.prototype.renderMemoInput = function () {
return h('div.send-screen-input-wrapper', [
h('div', 'Transaction memo (optional)'),
h('input.large-input.send-screen-input', {
onChange: () => {
this.setState({
newTx: Object.assign(
this.state.newTx,
{
memo: event.target.value,
}
),
})
},
}),
])
}
SendTransactionScreen.prototype.render = function () {
this.persistentFormParentId = 'send-tx-form'
const props = this.props
const {
warning,
identities,
addressBook,
conversionRate,
} = props
const {
blockGasLimit,
newTx,
activeCurrency,
isValid,
} = this.state
const { gas, gasPrice } = newTx
return (
h('div.send-screen-wrapper', [
// Main Send token Card
h('div.send-screen-card', [
h('img.send-eth-icon', { src: '../images/eth_logo.svg' }),
h('div.send-screen__title', 'Send'),
h('div.send-screen__subtitle', 'Send Ethereum to anyone with an Ethereum account'),
this.renderFromInput(this.state.newTx.from, identities),
this.renderToInput(this.state.newTx.to, identities, addressBook),
this.renderAmountInput(activeCurrency),
this.renderGasInput(
gasPrice || '0x0',
gas || '0x0',
activeCurrency,
conversionRate,
blockGasLimit
),
this.renderMemoInput(),
this.renderErrorMessage(null, warning),
]),
// Buttons underneath card
h('section.flex-column.flex-center', [
h('button.btn-secondary.send-screen__send-button', {
className: !isValid && 'send-screen__send-button__disabled',
onClick: (event) => isValid && this.onSubmit(event),
}, 'Next'),
h('button.btn-tertiary.send-screen__cancel-button', {
onClick: this.back,
}, 'Cancel'),
]),
])
)
}
SendTransactionScreen.prototype.toggleTooltip = function () {
this.setState({ tooltipIsOpen: !this.state.tooltipIsOpen })
}
SendTransactionScreen.prototype.closeTooltip = function () {
this.setState({ tooltipIsOpen: false })
}
SendTransactionScreen.prototype.setActiveCurrency = function (newCurrency) {
this.setState({ activeCurrency: newCurrency })
}
SendTransactionScreen.prototype.back = function () {
var address = this.props.address
this.props.dispatch(backToAccountDetail(address))
}
SendTransactionScreen.prototype.validate = function (balance, amountToSend, { to, from }) {
const sufficientBalance = conversionGreaterThan(
{
value: balance,
fromNumericBase: 'hex',
},
{
value: amountToSend,
fromNumericBase: 'hex',
},
)
const amountLessThanZero = conversionGreaterThan(
{
value: 0,
fromNumericBase: 'dec',
},
{
value: amountToSend,
fromNumericBase: 'hex',
},
)
const errors = {}
if (!sufficientBalance) {
errors.amount = 'Insufficient funds.'
}
if (amountLessThanZero) {
errors.amount = 'Can not send negative amounts of ETH.'
}
if (!from) {
errors.from = 'Required'
}
if (from && !isValidAddress(from)) {
errors.from = 'Sender address is invalid.'
}
if (!to) {
errors.to = 'Required'
}
if (to && !isValidAddress(to)) {
errors.to = 'Recipient address is invalid.'
}
// if (txData && !isHex(stripHexPrefix(txData))) {
// message = 'Transaction data must be hex string.'
// return this.props.dispatch(displayWarning(message))
// }
return {
isValid: allNull(errors),
errors,
}
}
SendTransactionScreen.prototype.getAmountToSend = function (amount) {
const { activeCurrency } = this.state
const { conversionRate } = this.props
return conversionUtil(amount, {
fromNumericBase: 'dec',
toNumericBase: 'hex',
fromCurrency: activeCurrency,
toCurrency: 'ETH',
toDenomination: 'WEI',
conversionRate,
invertConversionRate: activeCurrency !== 'ETH',
})
}
SendTransactionScreen.prototype.setErrorsFor = function (field) {
const { balance } = this.props
const { newTx, errors: previousErrors } = this.state
const { amountToSend } = newTx
const {
isValid,
errors: newErrors
} = this.validate(balance, amountToSend, newTx)
const nextErrors = Object.assign({}, previousErrors, {
[field]: newErrors[field] || null
})
if (!isValid) {
this.setState({
errors: nextErrors,
isValid,
})
}
}
SendTransactionScreen.prototype.clearErrorsFor = function (field) {
const { errors: previousErrors } = this.state
const nextErrors = Object.assign({}, previousErrors, {
[field]: null
})
this.setState({
errors: nextErrors,
isValid: allNull(nextErrors),
})
}
SendTransactionScreen.prototype.onSubmit = function (event) {
event.preventDefault()
const { warning, balance } = this.props
const state = this.state || {}
const recipient = state.newTx.to
const sender = state.newTx.from
const nickname = state.nickname || ' '
// TODO: convert this to hex when created and include it in send
const txData = state.newTx.memo
this.props.dispatch(hideWarning())
this.props.dispatch(addToAddressBook(recipient, nickname))
var txParams = {
from: this.state.newTx.from,
to: this.state.newTx.to,
value: this.state.newTx.amountToSend,
gas: this.state.newTx.gas,
gasPrice: this.state.newTx.gasPrice,
}
if (recipient) txParams.to = addHexPrefix(recipient)
if (txData) txParams.data = txData
this.props.dispatch(signTx(txParams))
}