Merge branch 'master' into edge-support

1 files changed, 121 insertions, 0 deletions

diff --git a/ui/app/components/balance-component.js b/ui/app/components/balance-component.js
new file mode 100644
index 000000000..d591ab455
--- /dev/null
+++ b/ui/app/components/balance-component.js
@@ -0,0 +1,121 @@
+const Component = require('react').Component
+const connect = require('react-redux').connect
+const h = require('react-hyperscript')
+const inherits = require('util').inherits
+const TokenBalance = require('./token-balance')
+const Identicon = require('./identicon')
+
+const { formatBalance, generateBalanceObject } = require('../util')
+
+module.exports = connect(mapStateToProps)(BalanceComponent)
+
+function mapStateToProps (state) {
+  const accounts = state.metamask.accounts
+  const network = state.metamask.network
+  const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0]
+  const account = accounts[selectedAddress]
+
+  return {
+    account,
+    network,
+    conversionRate: state.metamask.conversionRate,
+    currentCurrency: state.metamask.currentCurrency,
+  }
+}
+
+inherits(BalanceComponent, Component)
+function BalanceComponent () {
+  Component.call(this)
+}
+
+BalanceComponent.prototype.render = function () {
+  const props = this.props
+  const { token, network } = props
+
+  return h('div.balance-container', {}, [
+
+    // TODO: balance icon needs to be passed in
+    // h('img.balance-icon', {
+    //   src: '../images/eth_logo.svg',
+    //   style: {},
+    // }),
+    h(Identicon, {
+      diameter: 50,
+      address: token && token.address,
+      network,
+    }),
+
+    token ? this.renderTokenBalance() : this.renderBalance(),
+  ])
+}
+
+BalanceComponent.prototype.renderTokenBalance = function () {
+  const { token } = this.props
+
+  return h('div.flex-column.balance-display', [
+    h('div.token-amount', [ h(TokenBalance, { token }) ]),
+  ])
+}
+
+BalanceComponent.prototype.renderBalance = function () {
+  const props = this.props
+  const { shorten, account } = props
+  const balanceValue = account && account.balance
+  const needsParse = 'needsParse' in props ? props.needsParse : true
+  const formattedBalance = balanceValue ? formatBalance(balanceValue, 6, needsParse) : '...'
+  const showFiat = 'showFiat' in props ? props.showFiat : true
+
+  if (formattedBalance === 'None' || formattedBalance === '...') {
+    return h('div.flex-column.balance-display', {}, [
+      h('div.token-amount', {
+        style: {},
+      }, formattedBalance),
+    ])
+  }
+
+  return h('div.flex-column.balance-display', {}, [
+    h('div.token-amount', {
+      style: {},
+    }, this.getTokenBalance(formattedBalance, shorten)),
+
+    showFiat ? this.renderFiatValue(formattedBalance) : null,
+  ])
+}
+
+BalanceComponent.prototype.renderFiatValue = function (formattedBalance) {
+
+  const { conversionRate, currentCurrency } = this.props
+
+  const fiatDisplayNumber = this.getFiatDisplayNumber(formattedBalance, conversionRate)
+
+  const fiatPrefix = currentCurrency === 'USD' ? '$' : ''
+
+  return this.renderFiatAmount(fiatDisplayNumber, currentCurrency, fiatPrefix)
+}
+
+BalanceComponent.prototype.renderFiatAmount = function (fiatDisplayNumber, fiatSuffix, fiatPrefix) {
+  const shouldNotRenderFiat = fiatDisplayNumber === 'N/A' || Number(fiatDisplayNumber) === 0
+  if (shouldNotRenderFiat) return null
+
+  return h('div.fiat-amount', {
+    style: {},
+  }, `${fiatPrefix}${fiatDisplayNumber} ${fiatSuffix}`)
+}
+
+BalanceComponent.prototype.getTokenBalance = function (formattedBalance, shorten) {
+  const balanceObj = generateBalanceObject(formattedBalance, shorten ? 1 : 3)
+
+  const balanceValue = shorten ? balanceObj.shortBalance : balanceObj.balance
+  const label = balanceObj.label
+
+  return `${balanceValue} ${label}`
+}
+
+BalanceComponent.prototype.getFiatDisplayNumber = function (formattedBalance, conversionRate) {
+  if (formattedBalance === 'None') return formattedBalance
+  if (conversionRate === 0) return 'N/A'
+
+  const splitBalance = formattedBalance.split(' ')
+
+  return (Number(splitBalance[0]) * conversionRate).toFixed(2)
+}