Various improvements to gas input.

ui/app/components/hex-as-decimal-input.js

@@ -39,16 +39,17 @@ HexAsDecimalInput.prototype.render = function () {
       },
     }, [
       h('input.ether-balance.ether-balance-amount', {
+        type: 'number',
         style: extend({
           display: 'block',
           textAlign: 'right',
           backgroundColor: 'transparent',
           border: '1px solid #bdbdbd',
-          type: 'number',
+
         }, style),
         value: decimalValue,
         onChange: (event) => {
-          const hexString = hexify(event.target.value)
+          const hexString = (event.target.value === '') ? '' : hexify(event.target.value)
           onChange(hexString)
         },
       }),
@@ -71,7 +72,11 @@ function hexify (decimalString) {
 }
 
 function decimalize (input, toEth) {
+  if (input === '') {
+    return ''
+  } else {
     const strippedInput = ethUtil.stripHexPrefix(input)
     const inputBN = new BN(strippedInput, 'hex')
     return inputBN.toString(10)
   }
+}

ui/app/components/pending-tx-details.js

@@ -32,10 +32,8 @@ PTXP.render = function () {
   var account = props.accounts[address]
   var balance = account ? account.balance : '0x0'
 
-  const gas = state.gas || txParams.gas
-  const gasPrice = state.gasPrice || txData.gasPrice
-  const gasDefault = txParams.gas
-  const gasPriceDefault = txData.gasPrice
+  const gas = (state.gas === undefined) ? txParams.gas : state.gas
+  const gasPrice = (state.gasPrice === undefined) ? txData.gasPrice : state.gasPrice
 
   var txFee = state.txFee || txData.txFee || ''
   var maxCost = state.maxCost || txData.maxCost || ''
@@ -131,11 +129,7 @@ PTXP.render = function () {
               },
               onChange: (newHex) => {
                 log.info(`Gas limit changed to ${newHex}`)
-                if (newHex === '0x0') {
-                  this.setState({gas: gasDefault})
-                } else {
                 this.setState({ gas: newHex })
-                }
               },
             }),
           ]),
@@ -155,11 +149,7 @@ PTXP.render = function () {
               },
               onChange: (newHex) => {
                 log.info(`Gas price changed to: ${newHex}`)
-                if (newHex === '0x0') {
-                  this.setState({gasPrice: gasPriceDefault})
-                } else {
                 this.setState({ gasPrice: newHex })
-                }
               },
             }),
           ]),

ui/app/components/pending-tx.js

@@ -60,12 +60,18 @@ PendingTx.prototype.render = function () {
       }, [
 
         props.insufficientBalance ?
-          h('button.btn-green', {
+          h('button', {
             onClick: props.buyEth,
           }, 'Buy Ether')
         : null,
 
-        h('button.confirm', {
+        h('button', {
+          onClick: () => {
+            this.refs.details.resetGasFields()
+          },
+        }, 'Reset'),
+
+        h('button.confirm.btn-green', {
           disabled: props.insufficientBalance,
           onClick: props.sendTransaction,
         }, 'Accept'),
@@ -73,12 +79,6 @@ PendingTx.prototype.render = function () {
         h('button.cancel.btn-red', {
           onClick: props.cancelTransaction,
         }, 'Reject'),
-
-        h('button', {
-          onClick: () => {
-            this.refs.details.resetGasFields()
-          },
-        }, 'Reset'),
       ]),
     ])
   )