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

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const Component = require('react').Component
const connect = require('react-redux').connect
const h = require('react-hyperscript')
const classnames = require('classnames')
const abi = require('ethereumjs-abi')
const inherits = require('util').inherits
const actions = require('../../actions')
const selectors = require('../../selectors')
const { isValidAddress, allNull } = require('../../util')
// const BalanceComponent = require('./balance-component')
const Identicon = require('../identicon')
const TokenBalance = require('../token-balance')
const CurrencyToggle = require('../send/currency-toggle')
const GasTooltip = require('../send/gas-tooltip')
const GasFeeDisplay = require('../send/gas-fee-display')
module.exports = connect(mapStateToProps, mapDispatchToProps)(SendTokenScreen)
function mapStateToProps (state) {
// const sidebarOpen = state.appState.sidebarOpen
const { warning } = state.appState
const identities = state.metamask.identities
const addressBook = state.metamask.addressBook
const conversionRate = state.metamask.conversionRate
const currentBlockGasLimit = state.metamask.currentBlockGasLimit
const accounts = state.metamask.accounts
const selectedTokenAddress = state.metamask.selectedTokenAddress
const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0]
const selectedToken = selectors.getSelectedToken(state)
const tokenExchangeRates = state.metamask.tokenExchangeRates
const pair = `${selectedToken.symbol.toLowerCase()}_eth`
const { rate: tokenExchangeRate = 0 } = tokenExchangeRates[pair] || {}
return {
selectedAddress,
selectedTokenAddress,
identities,
addressBook,
conversionRate,
tokenExchangeRate,
currentBlockGasLimit,
selectedToken,
warning,
}
}
function mapDispatchToProps (dispatch) {
return {
backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)),
hideWarning: () => dispatch(actions.hideWarning()),
addToAddressBook: (recipient, nickname) => dispatch(
actions.addToAddressBook(recipient, nickname)
),
signTx: txParams => dispatch(actions.signTx(txParams)),
signTokenTx: (tokenAddress, toAddress, amount, txData) => (
dispatch(actions.signTokenTx(tokenAddress, toAddress, amount, txData))
),
updateTokenExchangeRate: token => dispatch(actions.updateTokenExchangeRate(token)),
estimateGas: params => dispatch(actions.estimateGas(params)),
getGasPrice: () => dispatch(actions.getGasPrice()),
}
}
inherits(SendTokenScreen, Component)
function SendTokenScreen () {
Component.call(this)
this.state = {
to: '',
amount: '0x0',
amountToSend: '0x0',
selectedCurrency: 'USD',
isGasTooltipOpen: false,
gasPrice: null,
gasLimit: null,
errors: {},
}
}
SendTokenScreen.prototype.componentWillMount = function () {
const {
updateTokenExchangeRate,
selectedToken: { symbol },
getGasPrice,
estimateGas,
selectedAddress,
} = this.props
updateTokenExchangeRate(symbol)
const data = Array.prototype.map.call(
abi.rawEncode(['address', 'uint256'], [selectedAddress, '0x0']),
x => ('00' + x.toString(16)).slice(-2)
).join('')
console.log(data)
Promise.all([
getGasPrice(),
estimateGas({
from: selectedAddress,
value: '0x0',
gas: '746a528800',
data,
}),
])
.then(([blockGasPrice, estimatedGas]) => {
console.log({ blockGasPrice, estimatedGas})
this.setState({
gasPrice: blockGasPrice,
gasLimit: estimatedGas,
})
})
}
SendTokenScreen.prototype.validate = function () {
const {
to,
amount: stringAmount,
gasPrice: hexGasPrice,
gasLimit: hexGasLimit,
} = this.state
const gasPrice = parseInt(hexGasPrice, 16)
const gasLimit = parseInt(hexGasLimit, 16) / 1000000000
const amount = Number(stringAmount)
const errors = {
to: !to ? 'Required' : null,
amount: !amount ? 'Required' : null,
gasPrice: !gasPrice ? 'Gas Price Required' : null,
gasLimit: !gasLimit ? 'Gas Limit Required' : null,
}
if (to && !isValidAddress(to)) {
errors.to = 'Invalid address'
}
const isValid = Object.entries(errors).every(([key, value]) => value === null)
return {
isValid,
errors: isValid ? {} : errors,
}
}
SendTokenScreen.prototype.setErrorsFor = function (field) {
const { errors: previousErrors } = this.state
const {
isValid,
errors: newErrors
} = this.validate()
const nextErrors = Object.assign({}, previousErrors, {
[field]: newErrors[field] || null
})
if (!isValid) {
this.setState({
errors: nextErrors,
isValid,
})
}
}
SendTokenScreen.prototype.clearErrorsFor = function (field) {
const { errors: previousErrors } = this.state
const nextErrors = Object.assign({}, previousErrors, {
[field]: null
})
this.setState({
errors: nextErrors,
isValid: allNull(nextErrors),
})
}
SendTokenScreen.prototype.getAmountToSend = function (amount, selectedToken) {
const { decimals } = selectedToken || {}
const multiplier = Math.pow(10, Number(decimals || 0))
const sendAmount = '0x' + Number(amount * multiplier).toString(16)
return sendAmount
}
SendTokenScreen.prototype.submit = function () {
const {
to,
amount,
gasPrice,
gasLimit,
} = this.state
const {
identities,
selectedAddress,
selectedTokenAddress,
hideWarning,
addToAddressBook,
signTokenTx,
selectedToken,
} = this.props
const { nickname = ' ' } = identities[to] || {}
hideWarning()
addToAddressBook(to, nickname)
const txParams = {
from: selectedAddress,
value: '0',
gas: gasLimit,
gasPrice: gasPrice,
}
const sendAmount = this.getAmountToSend(amount, selectedToken)
signTokenTx(selectedTokenAddress, to, sendAmount, txParams)
}
SendTokenScreen.prototype.renderToAddressInput = function () {
const {
identities,
addressBook,
} = this.props
const {
to,
errors: { to: errorMessage },
} = this.state
return h('div', {
className: classnames('send-screen-input-wrapper', {
'send-screen-input-wrapper--error': errorMessage,
}),
}, [
h('div', ['To:']),
h('input.large-input.send-screen-input', {
name: 'address',
list: 'addresses',
placeholder: 'Address',
value: to,
onChange: e => this.setState({
to: e.target.value,
errors: {},
}),
onBlur: () => {
this.setErrorsFor('to')
},
onFocus: event => {
if (to) event.target.select()
this.clearErrorsFor('to')
},
}),
h('datalist#addresses', [
// Corresponds to the addresses owned.
Object.entries(identities).map(([key, { address, name }]) => {
return h('option', {
value: address,
label: name,
key: address,
})
}),
addressBook.map(({ address, name }) => {
return h('option', {
value: address,
label: name,
key: address,
})
}),
]),
h('div.send-screen-input-wrapper__error-message', [ errorMessage ]),
])
}
SendTokenScreen.prototype.renderAmountInput = function () {
const {
selectedCurrency,
amount,
errors: { amount: errorMessage },
} = this.state
const {
tokenExchangeRate,
selectedToken: {symbol},
} = this.props
return h('div.send-screen-input-wrapper', {
className: classnames('send-screen-input-wrapper', {
'send-screen-input-wrapper--error': errorMessage,
}),
}, [
h('div.send-screen-amount-labels', [
h('span', ['Amount']),
h(CurrencyToggle, {
currentCurrency: tokenExchangeRate ? selectedCurrency : 'USD',
currencies: tokenExchangeRate ? [ symbol, 'USD' ] : [],
onClick: currency => this.setState({ selectedCurrency: currency }),
}),
]),
h('input.large-input.send-screen-input', {
placeholder: `0 ${symbol}`,
type: 'number',
value: amount,
onChange: e => this.setState({
amount: e.target.value,
}),
onBlur: () => {
this.setErrorsFor('amount')
},
onFocus: () => this.clearErrorsFor('amount'),
}),
h('div.send-screen-input-wrapper__error-message', [ errorMessage ]),
])
}
SendTokenScreen.prototype.renderGasInput = function () {
const {
isGasTooltipOpen,
gasPrice,
gasLimit,
selectedCurrency,
errors: {
gasPrice: gasPriceErrorMessage,
gasLimit: gasLimitErrorMessage,
},
} = this.state
const {
conversionRate,
tokenExchangeRate,
currentBlockGasLimit,
} = this.props
return h('div.send-screen-input-wrapper', {
className: classnames('send-screen-input-wrapper', {
'send-screen-input-wrapper--error': gasPriceErrorMessage || gasLimitErrorMessage,
}),
}, [
isGasTooltipOpen && h(GasTooltip, {
className: 'send-tooltip',
gasPrice: gasPrice || '0x0',
gasLimit: gasLimit || '0x0',
onClose: () => this.setState({ isGasTooltipOpen: false }),
onFeeChange: ({ gasLimit, gasPrice }) => {
this.setState({ gasLimit, gasPrice, errors: {} })
},
onBlur: () => {
this.setErrorsFor('gasLimit')
this.setErrorsFor('gasPrice')
},
onFocus: () => {
this.clearErrorsFor('gasLimit')
this.clearErrorsFor('gasPrice')
},
}),
h('div.send-screen-gas-labels', {}, [
h('span', [ h('i.fa.fa-bolt'), 'Gas fee:']),
h('span', ['What\'s this?']),
]),
h('div.large-input.send-screen-gas-input', [
h(GasFeeDisplay, {
conversionRate,
tokenExchangeRate,
gasPrice: gasPrice || '0x0',
activeCurrency: selectedCurrency,
gas: gasLimit || '0x0',
blockGasLimit: currentBlockGasLimit,
}),
h(
'div.send-screen-gas-input-customize',
{ onClick: () => this.setState({ isGasTooltipOpen: !isGasTooltipOpen }) },
['Customize']
),
]),
h('div.send-screen-input-wrapper__error-message', [
gasPriceErrorMessage || gasLimitErrorMessage,
]),
])
}
SendTokenScreen.prototype.renderMemoInput = function () {
return h('div.send-screen-input-wrapper', [
h('div', {}, ['Transaction memo (optional)']),
h(
'input.large-input.send-screen-input',
{ onChange: e => this.setState({ memo: e.target.value }) }
),
])
}
SendTokenScreen.prototype.renderButtons = function () {
const { selectedAddress, backToAccountDetail } = this.props
const { isValid } = this.validate()
return h('div.send-token__button-group', [
h('button.send-token__button-next.btn-secondary', {
className: !isValid && 'send-screen__send-button__disabled',
onClick: () => isValid && this.submit(),
}, ['Next']),
h('button.send-token__button-cancel.btn-tertiary', {
onClick: () => backToAccountDetail(selectedAddress),
}, ['Cancel']),
])
}
SendTokenScreen.prototype.render = function () {
const {
selectedTokenAddress,
selectedToken,
warning,
} = this.props
return h('div.send-token', [
h('div.send-token__content', [
h(Identicon, {
diameter: 75,
address: selectedTokenAddress,
}),
h('div.send-token__title', ['Send Tokens']),
h('div.send-token__description', ['Send Tokens to anyone with an Ethereum account']),
h('div.send-token__balance-text', ['Your Token Balance is:']),
h('div.send-token__token-balance', [
h(TokenBalance, { token: selectedToken, balanceOnly: true }),
]),
h('div.send-token__token-symbol', [selectedToken.symbol]),
this.renderToAddressInput(),
this.renderAmountInput(),
this.renderGasInput(),
this.renderMemoInput(),
warning && h('div.send-screen-input-wrapper--error', {},
h('div.send-screen-input-wrapper__error-message', [
warning,
])
),
]),
this.renderButtons(),
])
}