const Component = require('react').Component const h = require('react-hyperscript') const inherits = require('util').inherits const connect = require('../../metamask-connect') const actions = require('../../actions') const GasModalCard = require('./gas-modal-card') const ethUtil = require('ethereumjs-util') const { MIN_GAS_PRICE_DEC, MIN_GAS_LIMIT_DEC, MIN_GAS_PRICE_GWEI, } = require('../send/send-constants') const { isBalanceSufficient, } = require('../send/send-utils') const { conversionUtil, multiplyCurrencies, conversionGreaterThan, conversionMax, subtractCurrencies, } = require('../../conversion-util') const { getGasPrice, getGasLimit, getForceGasMin, conversionRateSelector, getSendAmount, getSelectedToken, getSendFrom, getCurrentAccountWithSendEtherInfo, getSelectedTokenToFiatRate, getSendMaxModeState, } = require('../../selectors') function mapStateToProps (state) { const selectedToken = getSelectedToken(state) const currentAccount = getSendFrom(state) || getCurrentAccountWithSendEtherInfo(state) const conversionRate = conversionRateSelector(state) return { gasPrice: getGasPrice(state), gasLimit: getGasLimit(state), forceGasMin: getForceGasMin(state), conversionRate, amount: getSendAmount(state), maxModeOn: getSendMaxModeState(state), balance: currentAccount.balance, primaryCurrency: selectedToken && selectedToken.symbol, selectedToken, amountConversionRate: selectedToken ? getSelectedTokenToFiatRate(state) : conversionRate, } } function mapDispatchToProps (dispatch) { return { hideModal: () => dispatch(actions.hideModal()), updateGasPrice: newGasPrice => dispatch(actions.updateGasPrice(newGasPrice)), updateGasLimit: newGasLimit => dispatch(actions.updateGasLimit(newGasLimit)), updateGasTotal: newGasTotal => dispatch(actions.updateGasTotal(newGasTotal)), updateSendAmount: newAmount => dispatch(actions.updateSendAmount(newAmount)), } } function getOriginalState (props) { const gasPrice = props.gasPrice || MIN_GAS_PRICE_DEC const gasLimit = props.gasLimit || MIN_GAS_LIMIT_DEC const gasTotal = multiplyCurrencies(gasLimit, gasPrice, { toNumericBase: 'hex', multiplicandBase: 16, multiplierBase: 16, }) return { gasPrice, gasLimit, gasTotal, error: null, priceSigZeros: '', priceSigDec: '', } } inherits(CustomizeGasModal, Component) function CustomizeGasModal (props) { Component.call(this) this.state = getOriginalState(props) } module.exports = connect(mapStateToProps, mapDispatchToProps)(CustomizeGasModal) CustomizeGasModal.prototype.save = function (gasPrice, gasLimit, gasTotal) { const { updateGasPrice, updateGasLimit, hideModal, updateGasTotal, maxModeOn, selectedToken, balance, updateSendAmount, } = this.props if (maxModeOn && !selectedToken) { const maxAmount = subtractCurrencies( ethUtil.addHexPrefix(balance), ethUtil.addHexPrefix(gasTotal), { toNumericBase: 'hex' } ) updateSendAmount(maxAmount) } updateGasPrice(ethUtil.addHexPrefix(gasPrice)) updateGasLimit(ethUtil.addHexPrefix(gasLimit)) updateGasTotal(ethUtil.addHexPrefix(gasTotal)) hideModal() } CustomizeGasModal.prototype.revert = function () { this.setState(getOriginalState(this.props)) } CustomizeGasModal.prototype.validate = function ({ gasTotal, gasLimit }) { const { amount, balance, selectedToken, amountConversionRate, conversionRate, maxModeOn, } = this.props let error = null const balanceIsSufficient = isBalanceSufficient({ amount: selectedToken || maxModeOn ? '0' : amount, gasTotal, balance, selectedToken, amountConversionRate, conversionRate, }) if (!balanceIsSufficient) { error = this.props.t('balanceIsInsufficientGas') } const gasLimitTooLow = gasLimit && conversionGreaterThan( { value: MIN_GAS_LIMIT_DEC, fromNumericBase: 'dec', conversionRate, }, { value: gasLimit, fromNumericBase: 'hex', }, ) if (gasLimitTooLow) { error = this.props.t('gasLimitTooLow') } this.setState({ error }) return error } CustomizeGasModal.prototype.convertAndSetGasLimit = function (newGasLimit) { const { gasPrice } = this.state const gasLimit = conversionUtil(newGasLimit, { fromNumericBase: 'dec', toNumericBase: 'hex', }) const gasTotal = multiplyCurrencies(gasLimit, gasPrice, { toNumericBase: 'hex', multiplicandBase: 16, multiplierBase: 16, }) this.validate({ gasTotal, gasLimit }) this.setState({ gasTotal, gasLimit }) } CustomizeGasModal.prototype.convertAndSetGasPrice = function (newGasPrice) { const { gasLimit } = this.state const sigZeros = String(newGasPrice).match(/^\d+[.]\d*?(0+)$/) const sigDec = String(newGasPrice).match(/^\d+([.])0*$/) this.setState({ priceSigZeros: sigZeros && sigZeros[1] || '', priceSigDec: sigDec && sigDec[1] || '', }) const gasPrice = conversionUtil(newGasPrice, { fromNumericBase: 'dec', toNumericBase: 'hex', fromDenomination: 'GWEI', toDenomination: 'WEI', }) const gasTotal = multiplyCurrencies(gasLimit, gasPrice, { toNumericBase: 'hex', multiplicandBase: 16, multiplierBase: 16, }) this.validate({ gasTotal }) this.setState({ gasTotal, gasPrice }) } CustomizeGasModal.prototype.render = function () { const { hideModal, forceGasMin } = this.props const { gasPrice, gasLimit, gasTotal, error, priceSigZeros, priceSigDec } = this.state let convertedGasPrice = conversionUtil(gasPrice, { fromNumericBase: 'hex', toNumericBase: 'dec', fromDenomination: 'WEI', toDenomination: 'GWEI', }) convertedGasPrice += convertedGasPrice.match(/[.]/) ? priceSigZeros : `${priceSigDec}${priceSigZeros}` let newGasPrice = gasPrice if (forceGasMin) { const convertedMinPrice = conversionUtil(forceGasMin, { fromNumericBase: 'hex', toNumericBase: 'dec', }) convertedGasPrice = conversionMax( { value: convertedMinPrice, fromNumericBase: 'dec' }, { value: convertedGasPrice, fromNumericBase: 'dec' } ) newGasPrice = conversionMax( { value: gasPrice, fromNumericBase: 'hex' }, { value: forceGasMin, fromNumericBase: 'hex' } ) } const convertedGasLimit = conversionUtil(gasLimit, { fromNumericBase: 'hex', toNumericBase: 'dec', }) return h('div.send-v2__customize-gas', {}, [ h('div.send-v2__customize-gas__content', { }, [ h('div.send-v2__customize-gas__header', {}, [ h('div.send-v2__customize-gas__title', this.props.t('customGas')), h('div.send-v2__customize-gas__close', { onClick: hideModal, }), ]), h('div.send-v2__customize-gas__body', {}, [ h(GasModalCard, { value: convertedGasPrice, min: forceGasMin || MIN_GAS_PRICE_GWEI, // max: 1000, step: multiplyCurrencies(MIN_GAS_PRICE_GWEI, 10), onChange: value => this.convertAndSetGasPrice(value), title: this.props.t('gasPrice'), copy: this.props.t('gasPriceCalculation'), }), h(GasModalCard, { value: convertedGasLimit, min: 1, // max: 100000, step: 1, onChange: value => this.convertAndSetGasLimit(value), title: this.props.t('gasLimit'), copy: this.props.t('gasLimitCalculation'), }), ]), h('div.send-v2__customize-gas__footer', {}, [ error && h('div.send-v2__customize-gas__error-message', [ error, ]), h('div.send-v2__customize-gas__revert', { onClick: () => this.revert(), }, [this.props.t('revert')]), h('div.send-v2__customize-gas__buttons', [ h('div.send-v2__customize-gas__cancel.allcaps', { onClick: this.props.hideModal, }, [this.props.t('cancel')]), h(`div.send-v2__customize-gas__save${error ? '__error' : ''}.allcaps`, { onClick: () => !error && this.save(newGasPrice, gasLimit, gasTotal), }, [this.props.t('save')]), ]), ]), ]), ]) }