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116 lines
2.9 KiB
116 lines
2.9 KiB
const Component = require('react').Component
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const h = require('react-hyperscript')
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const inherits = require('util').inherits
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const CurrencyInput = require('../currency-input')
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const { conversionUtil, multiplyCurrencies } = require('../../conversion-util')
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module.exports = CurrencyDisplay
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inherits(CurrencyDisplay, Component)
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function CurrencyDisplay () {
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Component.call(this)
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}
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function toHexWei (value) {
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return conversionUtil(value, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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toDenomination: 'WEI',
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})
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}
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CurrencyDisplay.prototype.getAmount = function (value) {
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const { selectedToken } = this.props
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const { decimals } = selectedToken || {}
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const multiplier = Math.pow(10, Number(decimals || 0))
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const sendAmount = multiplyCurrencies(value, multiplier, {toNumericBase: 'hex'})
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return selectedToken
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? sendAmount
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: toHexWei(value)
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}
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CurrencyDisplay.prototype.getValueToRender = function () {
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const { selectedToken, conversionRate, value } = this.props
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const { decimals, symbol } = selectedToken || {}
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const multiplier = Math.pow(10, Number(decimals || 0))
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return selectedToken
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? conversionUtil(value, {
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fromNumericBase: 'hex',
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toCurrency: symbol,
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conversionRate: multiplier,
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invertConversionRate: true,
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})
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: conversionUtil(value, {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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fromDenomination: 'WEI',
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numberOfDecimals: 6,
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conversionRate,
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})
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}
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CurrencyDisplay.prototype.render = function () {
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const {
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className = 'currency-display',
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primaryBalanceClassName = 'currency-display__input',
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convertedBalanceClassName = 'currency-display__converted-value',
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conversionRate,
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primaryCurrency,
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convertedCurrency,
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readOnly = false,
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inError = false,
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handleChange,
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} = this.props
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const valueToRender = this.getValueToRender()
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let convertedValue = conversionUtil(valueToRender, {
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fromNumericBase: 'dec',
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fromCurrency: primaryCurrency,
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toCurrency: convertedCurrency,
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numberOfDecimals: 2,
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conversionRate,
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})
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convertedValue = Number(convertedValue).toFixed(2)
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return h('div', {
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className,
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style: {
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borderColor: inError ? 'red' : null,
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},
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onClick: () => this.currencyInput.focus(),
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}, [
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h('div.currency-display__primary-row', [
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h('div.currency-display__input-wrapper', [
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h(CurrencyInput, {
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className: primaryBalanceClassName,
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value: `${valueToRender}`,
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placeholder: '0',
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readOnly,
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onInputChange: newValue => {
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handleChange(this.getAmount(newValue))
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},
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inputRef: input => { this.currencyInput = input },
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}),
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h('span.currency-display__currency-symbol', primaryCurrency),
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]),
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]),
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h('div', {
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className: convertedBalanceClassName,
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}, `${convertedValue} ${convertedCurrency.toUpperCase()}`),
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])
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}
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