Auto update gas estimate when to changes.

app/scripts/metamask-controller.js

@@ -383,6 +383,8 @@ module.exports = class MetamaskController extends EventEmitter {
       updateAndApproveTransaction: nodeify(txController.updateAndApproveTransaction, txController),
       retryTransaction: nodeify(this.retryTransaction, this),
       getFilteredTxList: nodeify(txController.getFilteredTxList, txController),
+      isNonceTaken: nodeify(txController.isNonceTaken, txController),
+      estimateGas: nodeify(this.estimateGas, this),
 
       // messageManager
       signMessage: nodeify(this.signMessage, this),
@@ -921,6 +923,18 @@ module.exports = class MetamaskController extends EventEmitter {
     return state
   }
 
+  estimateGas (estimateGasParams) {
+    return new Promise((resolve, reject) => {
+      return this.txController.txGasUtil.query.estimateGas(estimateGasParams, (err, res) => {
+        if (err) {
+          return reject(err)
+        }
+
+        return resolve(res)
+      })
+    })
+  }
+
 //=============================================================================
 // PASSWORD MANAGEMENT
 //=============================================================================

ui/app/actions.js

@@ -731,16 +731,21 @@ function updateGasData ({
   selectedAddress,
   selectedToken,
   to,
+  value,
 }) {
+  const estimatedGasPrice = estimateGasPriceFromRecentBlocks(recentBlocks)
   return (dispatch) => {
     return Promise.all([
-      Promise.resolve(estimateGasPriceFromRecentBlocks(recentBlocks)),
+      Promise.resolve(estimatedGasPrice),
       estimateGas({
+        estimateGasMethod: background.estimateGas,
         blockGasLimit,
         data,
         selectedAddress,
         selectedToken,
         to,
+        value,
+        gasPrice: estimatedGasPrice,
       }),
     ])
     .then(([gasPrice, gas]) => {

ui/app/components/send_/send-content/send-content.component.js

@@ -1,4 +1,5 @@
 import React, { Component } from 'react'
+import PropTypes from 'prop-types'
 import PageContainerContent from '../../page-container/page-container-content.component'
 import SendAmountRow from './send-amount-row/'
 import SendFromRow from './send-from-row/'
@@ -7,12 +8,16 @@ import SendToRow from './send-to-row/'
 
 export default class SendContent extends Component {
 
+  static propTypes = {
+    updateGas: PropTypes.func,
+  };
+
   render () {
     return (
       <PageContainerContent>
         <div className="send-v2__form">
           <SendFromRow />
-          <SendToRow />
+          <SendToRow updateGas={(updateData) => this.props.updateGas(updateData)} />
           <SendAmountRow />
           <SendGasRow />
         </div>

ui/app/components/send_/send-content/send-to-row/send-to-row.component.js

@@ -2,6 +2,7 @@ import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import SendRowWrapper from '../send-row-wrapper/'
 import EnsInput from '../../../ens-input'
+import { getToErrorObject } from './send-to-row.utils.js'
 
 export default class SendToRow extends Component {
 
@@ -13,14 +14,19 @@ export default class SendToRow extends Component {
     to: PropTypes.string,
     toAccounts: PropTypes.array,
     toDropdownOpen: PropTypes.bool,
+    updateGas: PropTypes.func,
     updateSendTo: PropTypes.func,
     updateSendToError: PropTypes.func,
   };
 
   handleToChange (to, nickname = '') {
-    const { updateSendTo, updateSendToError } = this.props
+    const { updateSendTo, updateSendToError, updateGas } = this.props
+    const toErrorObject = getToErrorObject(to)
     updateSendTo(to, nickname)
-    updateSendToError(to)
+    updateSendToError(toErrorObject)
+    if (toErrorObject.to === null) {
+      updateGas({ to })
+    }
   }
 
   render () {

ui/app/components/send_/send-content/send-to-row/send-to-row.container.js

@@ -8,7 +8,6 @@ import {
     getToDropdownOpen,
     sendToIsInError,
 } from './send-to-row.selectors.js'
-import { getToErrorObject } from './send-to-row.utils.js'
 import {
     updateSendTo,
 } from '../../../../actions'
@@ -36,8 +35,8 @@ function mapDispatchToProps (dispatch) {
     closeToDropdown: () => dispatch(closeToDropdown()),
     openToDropdown: () => dispatch(openToDropdown()),
     updateSendTo: (to, nickname) => dispatch(updateSendTo(to, nickname)),
-    updateSendToError: (to) => {
+    updateSendToError: (toErrorObject) => {
-        dispatch(updateSendErrors(getToErrorObject(to)))
+        dispatch(updateSendErrors(toErrorObject))
     },
   }
 }

ui/app/components/send_/send-content/send-to-row/send-to-row.utils.js

@@ -8,9 +8,9 @@ function getToErrorObject (to) {
   let toError = null
 
   if (!to) {
-      toError = REQUIRED_ERROR
+    toError = REQUIRED_ERROR
   } else if (!isValidAddress(to)) {
-      toError = INVALID_RECIPIENT_ADDRESS_ERROR
+    toError = INVALID_RECIPIENT_ADDRESS_ERROR
   }
 
   return { to: toError }

ui/app/components/send_/send-content/send-to-row/tests/send-to-row-component.test.js

@@ -2,7 +2,15 @@ import React from 'react'
 import assert from 'assert'
 import { shallow } from 'enzyme'
 import sinon from 'sinon'
-import SendToRow from '../send-to-row.component.js'
+import proxyquire from 'proxyquire'
+
+const SendToRow = proxyquire('../send-to-row.component.js', {
+  './send-to-row.utils.js': {
+    getToErrorObject: (to) => ({
+      to: to === false ? null : `mockToErrorObject:${to}`,
+    }),
+  },
+}).default
 
 import SendRowWrapper from '../../send-row-wrapper/send-row-wrapper.component'
 import EnsInput from '../../../../ens-input'
@@ -10,6 +18,7 @@ import EnsInput from '../../../../ens-input'
 const propsMethodSpies = {
   closeToDropdown: sinon.spy(),
   openToDropdown: sinon.spy(),
+  updateGas: sinon.spy(),
   updateSendTo: sinon.spy(),
   updateSendToError: sinon.spy(),
 }
@@ -29,6 +38,7 @@ describe('SendToRow Component', function () {
       to={'mockTo'}
       toAccounts={['mockAccount']}
       toDropdownOpen={false}
+      updateGas={propsMethodSpies.updateGas}
       updateSendTo={propsMethodSpies.updateSendTo}
       updateSendToError={propsMethodSpies.updateSendToError}
     />, { context: { t: str => str + '_t' } })
@@ -61,10 +71,21 @@ describe('SendToRow Component', function () {
       assert.equal(propsMethodSpies.updateSendToError.callCount, 1)
       assert.deepEqual(
         propsMethodSpies.updateSendToError.getCall(0).args,
-        ['mockTo2']
+        [{ to: 'mockToErrorObject:mockTo2' }]
       )
     })
 
+    it('should not call updateGas if there is a to error', () => {
+      assert.equal(propsMethodSpies.updateGas.callCount, 0)
+      instance.handleToChange('mockTo2')
+      assert.equal(propsMethodSpies.updateGas.callCount, 0)
+    })
+
+    it('should call updateGas if there is no to error', () => {
+      assert.equal(propsMethodSpies.updateGas.callCount, 0)
+      instance.handleToChange(false)
+      assert.equal(propsMethodSpies.updateGas.callCount, 1)
+    })
   })
 
   describe('render', () => {

ui/app/components/send_/send-content/send-to-row/tests/send-to-row-container.test.js

@@ -31,7 +31,6 @@ proxyquire('../send-to-row.container.js', {
     getToDropdownOpen: (s) => `mockToDropdownOpen:${s}`,
     sendToIsInError: (s) => `mockInError:${s}`,
   },
-  './send-to-row.utils.js': { getToErrorObject: (t) => `mockError:${t}` },
   '../../../../actions': actionSpies,
   '../../../../ducks/send.duck': duckActionSpies,
 })
@@ -99,12 +98,12 @@ describe('send-to-row container', () => {
 
     describe('updateSendToError()', () => {
       it('should dispatch an action', () => {
-        mapDispatchToPropsObject.updateSendToError('mockTo')
+        mapDispatchToPropsObject.updateSendToError('mockToErrorObject')
         assert(dispatchSpy.calledOnce)
         assert(duckActionSpies.updateSendErrors.calledOnce)
         assert.equal(
           duckActionSpies.updateSendErrors.getCall(0).args[0],
-          'mockError:mockTo'
+          'mockToErrorObject'
         )
       })
     })

ui/app/components/send_/send-footer/send-footer.utils.js

@@ -42,7 +42,6 @@ function constructUpdatedTx ({
   }
 
   if (selectedToken) {
-    console.log(`ethAbi.rawEncode`, ethAbi.rawEncode)
     const data = TOKEN_TRANSFER_FUNCTION_SIGNATURE + Array.prototype.map.call(
       ethAbi.rawEncode(['address', 'uint256'], [to, ethUtil.addHexPrefix(amount)]),
       x => ('00' + x.toString(16)).slice(-2)

ui/app/components/send_/send.component.js

@@ -39,8 +39,9 @@ export default class SendTransactionScreen extends PersistentForm {
     updateSendTokenBalance: PropTypes.func,
   };
 
-  updateGas () {
+  updateGas ({ to } = {}) {
     const {
+      amount,
       blockGasLimit,
       data,
       editingTransactionId,
@@ -61,6 +62,8 @@ export default class SendTransactionScreen extends PersistentForm {
       recentBlocks,
       selectedAddress,
       selectedToken,
+      to: to && to.toLowerCase(),
+      value: amount,
     })
   }
 
@@ -147,7 +150,7 @@ export default class SendTransactionScreen extends PersistentForm {
     return (
       <div className="page-container">
         <SendHeader history={history}/>
-        <SendContent/>
+        <SendContent updateGas={(updateData) => this.updateGas(updateData)}/>
         <SendFooter history={history}/>
       </div>
     )

ui/app/components/send_/send.container.js

@@ -76,9 +76,11 @@ function mapDispatchToProps (dispatch) {
       recentBlocks,
       selectedAddress,
       selectedToken,
+      to,
+      value,
     }) => {
       !editingTransactionId
-        ? dispatch(updateGasData({ recentBlocks, selectedAddress, selectedToken, data, blockGasLimit }))
+        ? dispatch(updateGasData({ recentBlocks, selectedAddress, selectedToken, data, blockGasLimit, to, value }))
         : dispatch(setGasTotal(calcGasTotal(gasLimit, gasPrice)))
     },
     updateSendTokenBalance: ({ selectedToken, tokenContract, address }) => {

ui/app/components/send_/send.utils.js

@@ -15,8 +15,8 @@ const {
   ONE_GWEI_IN_WEI_HEX,
   SIMPLE_GAS_COST,
 } = require('./send.constants')
-const EthQuery = require('ethjs-query')
 const abi = require('ethereumjs-abi')
+const ethUtil = require('ethereumjs-util')
 
 module.exports = {
   calcGasTotal,
@@ -165,40 +165,44 @@ function doesAmountErrorRequireUpdate ({
   return amountErrorRequiresUpdate
 }
 
-async function estimateGas ({ selectedAddress, selectedToken, data, blockGasLimit, to }) {
+async function estimateGas ({ selectedAddress, selectedToken, data, blockGasLimit, to, value, gasPrice, estimateGasMethod }) {
-  const ethQuery = new EthQuery(global.ethereumProvider)
   const { symbol } = selectedToken || {}
-  const estimatedGasParams = { from: selectedAddress }
+  const paramsForGasEstimate = { from: selectedAddress, value, gasPrice }
 
   if (symbol) {
-    Object.assign(estimatedGasParams, { value: '0x0' })
+    Object.assign(paramsForGasEstimate, { value: '0x0' })
   }
 
   if (data) {
-    Object.assign(estimatedGasParams, { data })
+    Object.assign(paramsForGasEstimate, { data })
   }
   // if recipient has no code, gas is 21k max:
   const hasRecipient = Boolean(to)
   let code
-  if (hasRecipient) code = await ethQuery.getCode(to)
+  if (hasRecipient) code = await global.eth.getCode(to)
-
   if (hasRecipient && (!code || code === '0x')) {
     return SIMPLE_GAS_COST
   }
 
-  estimatedGasParams.to = to
+  paramsForGasEstimate.to = to
 
   // if not, fall back to block gasLimit
-  estimatedGasParams.gas = multiplyCurrencies(blockGasLimit, 0.95, {
+  paramsForGasEstimate.gas = ethUtil.addHexPrefix(multiplyCurrencies(blockGasLimit, 0.95, {
     multiplicandBase: 16,
     multiplierBase: 10,
     roundDown: '0',
     toNumericBase: 'hex',
-  })
+  }))
 
   // run tx
-  const estimatedGas = await ethQuery.estimateGas(estimatedGasParams)
+  return new Promise((resolve, reject) => {
-  return estimatedGas.toString(16)
+    estimateGasMethod(paramsForGasEstimate, (err, estimatedGas) => {
+      if (err) {
+        reject(err)
+      }
+      resolve(estimatedGas.toString(16))
+    })
+  })
 }
 
 function generateTokenTransferData (selectedAddress, selectedToken) {

ui/app/components/send_/tests/send-component.test.js

@@ -217,9 +217,17 @@ describe.only('Send Component', function () {
           recentBlocks: ['mockBlock'],
           selectedAddress: 'mockSelectedAddress',
           selectedToken: 'mockSelectedToken',
+          to: undefined,
+          value: 'mockAmount',
         }
       )
     })
+
+    it('should call updateAndSetGasTotal with to set to lowercase if passed', () => {
+      propsMethodSpies.updateAndSetGasTotal.resetHistory()
+      wrapper.instance().updateGas({ to: '0xABC' })
+      assert.equal(propsMethodSpies.updateAndSetGasTotal.getCall(0).args[0].to, '0xabc')
+    })
   })
 
   describe('render', () => {

ui/app/components/send_/tests/send-container.test.js

@@ -99,6 +99,8 @@ describe('send container', () => {
         recentBlocks: ['mockBlock'],
         selectedAddress: '0x4',
         selectedToken: { address: '0x1' },
+        to: 'mockTo',
+        value: 'mockValue',
       }
 
       it('should dispatch a setGasTotal action when editingTransactionId is truthy', () => {
@@ -111,14 +113,14 @@ describe('send container', () => {
       })
 
       it('should dispatch an updateGasData action when editingTransactionId is falsy', () => {
-        const { selectedAddress, selectedToken, data, recentBlocks, blockGasLimit } = mockProps
+        const { selectedAddress, selectedToken, data, recentBlocks, blockGasLimit, to, value } = mockProps
         mapDispatchToPropsObject.updateAndSetGasTotal(
           Object.assign({}, mockProps, {editingTransactionId: false})
         )
         assert(dispatchSpy.calledOnce)
         assert.deepEqual(
           actionSpies.updateGasData.getCall(0).args[0],
-          { selectedAddress, selectedToken, data, recentBlocks, blockGasLimit }
+          { selectedAddress, selectedToken, data, recentBlocks, blockGasLimit, to, value }
         )
       })
     })

ui/app/components/send_/tests/send-utils.test.js

@@ -24,14 +24,6 @@ const stubs = {
   rawEncode: sinon.stub().returns([16, 1100]),
 }
 
-const EthQuery = function () {}
-EthQuery.prototype.estimateGas = sinon.stub().callsFake(
-  (data) => Promise.resolve({ toString: (n) => `mockToString:${n}` })
-)
-EthQuery.prototype.getCode = sinon.stub().callsFake(
-  (address) => Promise.resolve(address.match(/isContract/) ? 'not-0x' : '0x') 
-)
-
 const sendUtils = proxyquire('../send.utils.js', {
   '../../conversion-util': {
     addCurrencies: stubs.addCurrencies,
@@ -43,7 +35,6 @@ const sendUtils = proxyquire('../send.utils.js', {
   'ethereumjs-abi': {
     rawEncode: stubs.rawEncode,
   },
-  'ethjs-query': EthQuery,
 })
 
 const {
@@ -249,6 +240,9 @@ describe('send utils', () => {
       blockGasLimit: '0x64',
       selectedAddress: 'mockAddress',
       to: '0xisContract',
+      estimateGasMethod: sinon.stub().callsFake(
+        (data, cb) => cb(null, { toString: (n) => `mockToString:${n}` })
+      ),
     }
     const baseExpectedCall = {
       from: 'mockAddress',
@@ -256,53 +250,51 @@ describe('send utils', () => {
       to: '0xisContract',
     }
 
+    beforeEach(() => {
+      global.eth = {
+        getCode: sinon.stub().callsFake(
+          (address) => Promise.resolve(address.match(/isContract/) ? 'not-0x' : '0x')
+        ),
+      }
+    })
+
     afterEach(() => {
-      EthQuery.prototype.estimateGas.resetHistory()
+      baseMockParams.estimateGasMethod.resetHistory()
-      EthQuery.prototype.getCode.resetHistory()
+      global.eth.getCode.resetHistory()
     })
 
     it('should call ethQuery.estimateGas with the expected params', async () => {
       const result = await estimateGas(baseMockParams)
-      assert.equal(EthQuery.prototype.estimateGas.callCount, 1)
+      assert.equal(baseMockParams.estimateGasMethod.callCount, 1)
       assert.deepEqual(
-        EthQuery.prototype.estimateGas.getCall(0).args[0],
+        baseMockParams.estimateGasMethod.getCall(0).args[0],
-        baseExpectedCall
+        Object.assign({ gasPrice: undefined, value: undefined }, baseExpectedCall)
       )
       assert.equal(result, 'mockToString:16')
     })
 
     it('should call ethQuery.estimateGas with a value of 0x0 if the passed selectedToken has a symbol', async () => {
       const result = await estimateGas(Object.assign({ selectedToken: { symbol: true } }, baseMockParams))
-      assert.equal(EthQuery.prototype.estimateGas.callCount, 1)
+      assert.equal(baseMockParams.estimateGasMethod.callCount, 1)
       assert.deepEqual(
-        EthQuery.prototype.estimateGas.getCall(0).args[0],
+        baseMockParams.estimateGasMethod.getCall(0).args[0],
-        Object.assign({ value: '0x0' }, baseExpectedCall)
+        Object.assign({ gasPrice: undefined, value: '0x0' }, baseExpectedCall)
       )
       assert.equal(result, 'mockToString:16')
     })
 
     it('should call ethQuery.estimateGas with data if data is passed', async () => {
       const result = await estimateGas(Object.assign({ data: 'mockData' }, baseMockParams))
-      assert.equal(EthQuery.prototype.estimateGas.callCount, 1)
+      assert.equal(baseMockParams.estimateGasMethod.callCount, 1)
       assert.deepEqual(
-        EthQuery.prototype.estimateGas.getCall(0).args[0],
+        baseMockParams.estimateGasMethod.getCall(0).args[0],
-        Object.assign({ data: 'mockData' }, baseExpectedCall)
+        Object.assign({ gasPrice: undefined, value: undefined, data: 'mockData' }, baseExpectedCall)
-      )
-      assert.equal(result, 'mockToString:16')
-    })
-
-    it('should call ethQuery.estimateGas with data if data is passed', async () => {
-      const result = await estimateGas(Object.assign({ data: 'mockData' }, baseMockParams))
-      assert.equal(EthQuery.prototype.estimateGas.callCount, 1)
-      assert.deepEqual(
-        EthQuery.prototype.estimateGas.getCall(0).args[0],
-        Object.assign({ data: 'mockData' }, baseExpectedCall)
       )
       assert.equal(result, 'mockToString:16')
     })
 
     it(`should return ${SIMPLE_GAS_COST} if ethQuery.getCode does not return '0x'`, async () => {
-      assert.equal(EthQuery.prototype.estimateGas.callCount, 0)
+      assert.equal(baseMockParams.estimateGasMethod.callCount, 0)
       const result = await estimateGas(Object.assign({}, baseMockParams, { to: '0x123' }))
       assert.equal(result, SIMPLE_GAS_COST)
     })