Display newest transaction

app/scripts/controllers/transactions/index.js

@@ -157,7 +157,6 @@ class TransactionController extends EventEmitter {
     // construct txMeta
     let txMeta = this.txStateManager.generateTxMeta({ txParams: normalizedTxParams })
     this.addTx(txMeta)
-    this.emit('newUnapprovedTx', txMeta)
 
     try {
       // check whether recipient account is blacklisted
@@ -172,6 +171,7 @@ class TransactionController extends EventEmitter {
     txMeta.loadingDefaults = false
     // save txMeta
     this.txStateManager.updateTx(txMeta)
+    this.emit('newUnapprovedTx', txMeta)
 
     return txMeta
   }

ui/app/components/app-header/app-header.component.js

@@ -91,7 +91,6 @@ class AppHeader extends Component {
       network,
       provider,
       history,
-      location,
       isUnlocked,
     } = this.props
 
@@ -126,7 +125,7 @@ class AppHeader extends Component {
                 network={network}
                 provider={provider}
                 onClick={event => this.handleNetworkIndicatorClick(event)}
-                disabled={location.pathname === CONFIRM_TRANSACTION_ROUTE}
+                disabled={this.isConfirming()}
               />
             </div>
             { this.renderAccountMenu() }

ui/app/components/pages/confirm-transaction/confirm-transaction.component.js

@@ -61,7 +61,7 @@ export default class ConfirmTransaction extends Component {
       setTransactionToConfirm(paramsTransactionId)
     }
 
-    if (!paramsTransactionId) {
+    if (!transactionId) {
       this.setTransactionToConfirm()
     }
   }
@@ -84,7 +84,8 @@ export default class ConfirmTransaction extends Component {
         setTransactionToConfirm(paramsTransactionId)
       }
     } else if (unconfirmedTransactions.length) {
-      const transactionId = unconfirmedTransactions[0].id
+      const totalUnconfirmed = unconfirmedTransactions.length
+      const transactionId = unconfirmedTransactions[totalUnconfirmed - 1].id
       setTransactionToConfirm(transactionId)
     }
   }

ui/app/ducks/confirm-transaction.duck.js

@@ -236,7 +236,7 @@ export function updateTxDataAndCalculate (txData) {
 
     dispatch(updateTxData(txData))
 
-    const { txParams: { value, gas: gasLimit, gasPrice } = {} } = txData
+    const { txParams: { value, gas: gasLimit = '0x0', gasPrice = '0x0' } = {} } = txData
 
     const fiatTransactionAmount = getTransactionAmount({
       value, toCurrency: currentCurrency, conversionRate, numberOfDecimals: 2,