1 files changed, 62 insertions, 0 deletions
diff --git a/ui/app/components/send/gas-fee-display.js b/ui/app/components/send/gas-fee-display.js
new file mode 100644
index 000000000..a9a3f3f49
--- /dev/null
+++ b/ui/app/components/send/gas-fee-display.js
@@ -0,0 +1,62 @@
+const Component = require('react').Component
+const h = require('react-hyperscript')
+const inherits = require('util').inherits
+const USDFeeDisplay = require('./usd-fee-display')
+const EthFeeDisplay = require('./eth-fee-display')
+const { getTxFeeBn, formatBalance, shortenBalance } = require('../../util')
+
+module.exports = GasFeeDisplay
+
+inherits(GasFeeDisplay, Component)
+function GasFeeDisplay () {
+  Component.call(this)
+}
+
+GasFeeDisplay.prototype.getTokenValue = function () {
+  const {
+    tokenExchangeRate,
+    gas,
+    gasPrice,
+    blockGasLimit,
+  } = this.props
+
+  const value = formatBalance(getTxFeeBn(gas, gasPrice, blockGasLimit), 6, true)
+  const [ethNumber] = value.split(' ')
+
+  return shortenBalance(Number(ethNumber) / tokenExchangeRate, 6)
+}
+
+GasFeeDisplay.prototype.render = function () {
+  const {
+    activeCurrency,
+    conversionRate,
+    gas,
+    gasPrice,
+    blockGasLimit,
+  } = this.props
+
+  switch (activeCurrency) {
+    case 'USD':
+      return h(USDFeeDisplay, {
+        activeCurrency,
+        conversionRate,
+        gas,
+        gasPrice,
+        blockGasLimit,
+      })
+    case 'ETH':
+      return h(EthFeeDisplay, {
+        activeCurrency,
+        conversionRate,
+        gas,
+        gasPrice,
+        blockGasLimit,
+      })
+    default:
+      return h('div.token-gas', [
+        h('div.token-gas__amount', this.getTokenValue()),
+        h('div.token-gas__symbol', activeCurrency),
+      ])
+  }
+}
+