Merge pull request #4157 from danjm/i3725-refactor-send-component-2

I3725 refactor send component

14 files changed, 578 insertions, 32 deletions

diff --git a/ui/app/components/page-container/index.js b/ui/app/components/page-container/index.js
new file mode 100644
index 000000000..415870b37
--- /dev/null
+++ b/ui/app/components/page-container/index.js
@@ -0,0 +1 @@
+export { default } from './page-container.component'
diff --git a/ui/app/components/page-container/page-container-footer/index.js b/ui/app/components/page-container/page-container-footer/index.js
new file mode 100644
index 000000000..7825c4520
--- /dev/null
+++ b/ui/app/components/page-container/page-container-footer/index.js
@@ -0,0 +1 @@
+export { default } from './page-container-footer.component'
diff --git a/ui/app/components/page-container/page-container-footer.component.js b/ui/app/components/page-container/page-container-footer/page-container-footer.component.js
index 475ce6b1c..fafe1c19e 100644
--- a/ui/app/components/page-container/page-container-footer.component.js
+++ b/ui/app/components/page-container/page-container-footer/page-container-footer.component.js
@@ -5,12 +5,24 @@ export default class PageContainerFooter extends Component {
 
   static propTypes = {
     onCancel: PropTypes.func,
+    cancelText: PropTypes.string,
     onSubmit: PropTypes.func,
+    submitText: PropTypes.string,
     disabled: PropTypes.bool,
-  };
+  }
+
+  static contextTypes = {
+    t: PropTypes.func,
+  }
 
   render () {
-    const { onCancel, onSubmit, disabled } = this.props
+    const {
+      onCancel,
+      cancelText,
+      onSubmit,
+      submitText,
+      disabled,
+    } = this.props
 
     return (
       <div className="page-container__footer">
@@ -19,15 +31,15 @@ export default class PageContainerFooter extends Component {
           className="btn-secondary--lg page-container__footer-button"
           onClick={() => onCancel()}
         >
-          {this.context.t('cancel')}
+          { this.context.t('cancel') || cancelText }
         </button>
 
         <button
           className="btn-primary--lg page-container__footer-button"
           disabled={disabled}
-          onClick={(e) => onSubmit(e)}
+          onClick={e => onSubmit(e)}
         >
-          {this.context.t('next')}
+          { this.context.t('next') || submitText }
         </button>
 
       </div>
@@ -35,7 +47,3 @@ export default class PageContainerFooter extends Component {
   }
 
 }
-
-PageContainerFooter.contextTypes = {
-  t: PropTypes.func,
-}
diff --git a/ui/app/components/page-container/tests/page-container-content-component.test.js b/ui/app/components/page-container/page-container-footer/tests/page-container-footer.component.test.js
index e69de29bb..e69de29bb 100644
--- a/ui/app/components/page-container/tests/page-container-content-component.test.js
+++ b/ui/app/components/page-container/page-container-footer/tests/page-container-footer.component.test.js
diff --git a/ui/app/components/page-container/page-container-header/index.js b/ui/app/components/page-container/page-container-header/index.js
new file mode 100644
index 000000000..b194af057
--- /dev/null
+++ b/ui/app/components/page-container/page-container-header/index.js
@@ -0,0 +1 @@
+export { default } from './page-container-header.component'
diff --git a/ui/app/components/page-container/page-container-header/page-container-header.component.js b/ui/app/components/page-container/page-container-header/page-container-header.component.js
new file mode 100644
index 000000000..28882edce
--- /dev/null
+++ b/ui/app/components/page-container/page-container-header/page-container-header.component.js
@@ -0,0 +1,57 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+
+export default class PageContainerHeader extends Component {
+
+  static propTypes = {
+    title: PropTypes.string.isRequired,
+    subtitle: PropTypes.string,
+    onClose: PropTypes.func,
+    showBackButton: PropTypes.bool,
+    onBackButtonClick: PropTypes.func,
+    backButtonStyles: PropTypes.object,
+    backButtonString: PropTypes.string,
+  };
+
+  renderHeaderRow () {
+    const { showBackButton, onBackButtonClick, backButtonStyles, backButtonString } = this.props
+
+    return showBackButton && (
+      <div className="page-container__header-row">
+        <span
+          className="page-container__back-button"
+          onClick={onBackButtonClick}
+          style={backButtonStyles}
+        >
+          { backButtonString || 'Back' }
+        </span>
+      </div>
+    )
+  }
+
+  render () {
+    const { title, subtitle, onClose } = this.props
+
+    return (
+      <div className="page-container__header">
+
+        { this.renderHeaderRow() }
+
+        <div className="page-container__title">
+          {title}
+        </div>
+
+        <div className="page-container__subtitle">
+          {subtitle}
+        </div>
+
+        <div
+          className="page-container__header-close"
+          onClick={() => onClose()}
+        />
+
+      </div>
+    )
+  }
+
+}
diff --git a/ui/app/components/page-container/tests/page-container-footer-component.test.js b/ui/app/components/page-container/page-container-header/tests/page-container-header.component.test.js
index e69de29bb..e69de29bb 100644
--- a/ui/app/components/page-container/tests/page-container-footer-component.test.js
+++ b/ui/app/components/page-container/page-container-header/tests/page-container-header.component.test.js
diff --git a/ui/app/components/page-container/page-container.component.js b/ui/app/components/page-container/page-container.component.js
index dc3745d4a..9bfb99ade 100644
--- a/ui/app/components/page-container/page-container.component.js
+++ b/ui/app/components/page-container/page-container.component.js
@@ -1,16 +1,70 @@
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 
+import PageContainerHeader from './page-container-header'
+import PageContainerFooter from './page-container-footer'
+
 export default class PageContainer extends Component {
 
   static propTypes = {
-    children: PropTypes.node.isRequired,
+    // PageContainerHeader props
+    title: PropTypes.string.isRequired,
+    subtitle: PropTypes.string,
+    onClose: PropTypes.func,
+    showBackButton: PropTypes.bool,
+    onBackButtonClick: PropTypes.func,
+    backButtonStyles: PropTypes.object,
+    backButtonString: PropTypes.string,
+    // Content props
+    ContentComponent: PropTypes.func,
+    contentComponentProps: PropTypes.object,
+    // PageContainerFooter props
+    onCancel: PropTypes.func,
+    cancelText: PropTypes.string,
+    onSubmit: PropTypes.func,
+    submitText: PropTypes.string,
+    disabled: PropTypes.bool,
   };
 
   render () {
+    const {
+      title,
+      subtitle,
+      onClose,
+      showBackButton,
+      onBackButtonClick,
+      backButtonStyles,
+      backButtonString,
+      ContentComponent,
+      contentComponentProps,
+      onCancel,
+      cancelText,
+      onSubmit,
+      submitText,
+      disabled,
+    } = this.props
+
     return (
       <div className="page-container">
-        {this.props.children}
+        <PageContainerHeader
+          title={title}
+          subtitle={subtitle}
+          onClose={onClose}
+          showBackButton={showBackButton}
+          onBackButtonClick={onBackButtonClick}
+          backButtonStyles={backButtonStyles}
+          backButtonString={backButtonString}
+        />
+        <div className="page-container__content">
+          <ContentComponent { ...contentComponentProps } />
+        </div>
+        <PageContainerFooter
+          onCancel={onCancel}
+          cancelText={cancelText}
+          onSubmit={onSubmit}
+          submitText={submitText}
+          disabled={disabled}
+        />
       </div>
     )
   }
diff --git a/ui/app/components/page-container/tests/page-container-header-component.test.js b/ui/app/components/page-container/tests/page-container.component.test.js
index e69de29bb..e69de29bb 100644
--- a/ui/app/components/page-container/tests/page-container-header-component.test.js
+++ b/ui/app/components/page-container/tests/page-container.component.test.js
diff --git a/ui/app/components/send/send-v2-container.js b/ui/app/components/send/send-v2-container.js
index 6464439f2..cdbee0cdc 100644
--- a/ui/app/components/send/send-v2-container.js
+++ b/ui/app/components/send/send-v2-container.js
@@ -62,6 +62,7 @@ function mapStateToProps (state) {
     tokenContract: getSelectedTokenContract(state),
     unapprovedTxs: state.metamask.unapprovedTxs,
     network: state.metamask.network,
+    isToken: Boolean(getSelectedToken(state)),
   }
 }
 
diff --git a/ui/app/components/send_/send-footer/send-footer.component.js b/ui/app/components/send_/send-footer/send-footer.component.js
index ffece433e..fc7a78a94 100644
--- a/ui/app/components/send_/send-footer/send-footer.component.js
+++ b/ui/app/components/send_/send-footer/send-footer.component.js
@@ -1,6 +1,6 @@
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
-import PageContainerFooter from '../../page-container/page-container-footer.component'
+import PageContainerFooter from '../../page-container/page-container-footer'
 import { CONFIRM_TRANSACTION_ROUTE, DEFAULT_ROUTE } from '../../../routes'
 
 export default class SendFooter extends Component {
diff --git a/ui/app/components/send_/send-header/send-header.component.js b/ui/app/components/send_/send-header/send-header.component.js
index 098fd89a4..dc4190b93 100644
--- a/ui/app/components/send_/send-header/send-header.component.js
+++ b/ui/app/components/send_/send-header/send-header.component.js
@@ -1,6 +1,6 @@
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
-import PageContainerHeader from '../../page-container/page-container-header.component'
+import PageContainerHeader from '../../page-container/page-container-header'
 import { DEFAULT_ROUTE } from '../../../routes'
 
 export default class SendHeader extends Component {
diff --git a/ui/app/components/send_/send.component.js b/ui/app/components/send_/send.component.js
index 969d76946..e14a97537 100644
--- a/ui/app/components/send_/send.component.js
+++ b/ui/app/components/send_/send.component.js
@@ -6,7 +6,6 @@ import {
   doesAmountErrorRequireUpdate,
 } from './send.utils'
 
-import PageContainer from '..//page-container/page-container.component'
 import SendHeader from './send-header/send-header.container'
 import SendContent from './send-content/send-content.component'
 import SendFooter from './send-footer/send-footer.container'
@@ -128,11 +127,11 @@ export default class SendTransactionScreen extends PersistentForm {
     const { history } = this.props
 
     return (
-      <PageContainer>
+      <div className="page-container">
         <SendHeader history={history}/>
         <SendContent/>
         <SendFooter history={history}/>
-      </PageContainer>
+      </div>
     )
   }
 
diff --git a/ui/app/send-v2.js b/ui/app/send-v2.js
index 16964b45d..228cb22d0 100644
--- a/ui/app/send-v2.js
+++ b/ui/app/send-v2.js
@@ -3,8 +3,23 @@ const PropTypes = require('prop-types')
 const PersistentForm = require('../lib/persistent-form')
 const h = require('react-hyperscript')
 
+const ethAbi = require('ethereumjs-abi')
+const ethUtil = require('ethereumjs-util')
+
+const FromDropdown = require('./components/send/from-dropdown')
+const EnsInput = require('./components/ens-input')
+const CurrencyDisplay = require('./components/send/currency-display')
+const MemoTextArea = require('./components/send/memo-textarea')
+const GasFeeDisplay = require('./components/send/gas-fee-display-v2')
+
+const {
+  TOKEN_TRANSFER_FUNCTION_SIGNATURE,
+} = require('./components/send/send-constants')
+
 const {
+  multiplyCurrencies,
   conversionGreaterThan,
+  subtractCurrencies,
 } = require('./conversion-util')
 const {
   calcTokenAmount,
@@ -14,11 +29,12 @@ const {
   isTokenBalanceSufficient,
   getGasTotal,
 } = require('./components/send/send-utils')
+const { isValidAddress } = require('./util')
 
-import PageContainer from './components/page-container/page-container.component'
-import SendHeader from './components/send_/send-header/send-header.container'
-import SendContent from './components/send_/send-content/send-content.component'
-import SendFooter from './components/send_/send-footer/send-footer.container'
+import PageContainer from './components/page-container'
+// import SendHeader from './components/send_/send-header/send-header.container'
+// import PageContainerContent from './components/page-container/page-container-content.component'
+// import PageContainerFooter from './components/page-container/page-container-footer.component'
 
 SendTransactionScreen.contextTypes = {
   t: PropTypes.func,
@@ -40,6 +56,8 @@ function SendTransactionScreen () {
     gasLoadingError: false,
   }
 
+  this.handleToChange = this.handleToChange.bind(this)
+  this.handleAmountChange = this.handleAmountChange.bind(this)
   this.validateAmount = this.validateAmount.bind(this)
 }
 
@@ -74,6 +92,17 @@ SendTransactionScreen.prototype.updateSendTokenBalance = function (usersToken) {
 }
 
 SendTransactionScreen.prototype.componentWillMount = function () {
+  const {
+    updateTokenExchangeRate,
+    selectedToken = {},
+  } = this.props
+
+  const { symbol } = selectedToken || {}
+
+  if (symbol) {
+    updateTokenExchangeRate(symbol)
+  }
+
   this.updateGas()
 }
 
@@ -84,7 +113,7 @@ SendTransactionScreen.prototype.updateGas = function () {
     estimateGas,
     selectedAddress,
     data,
-    setGasTotal,
+    updateGasTotal,
     from,
     tokenContract,
     editingTransactionId,
@@ -110,7 +139,7 @@ SendTransactionScreen.prototype.updateGas = function () {
       ])
       .then(([gasPrice, gas]) => {
         const newGasTotal = getGasTotal(gas, gasPrice)
-        setGasTotal(newGasTotal)
+        updateGasTotal(newGasTotal)
         this.setState({ gasLoadingError: false })
       })
       .catch(err => {
@@ -118,7 +147,7 @@ SendTransactionScreen.prototype.updateGas = function () {
       })
   } else {
     const newGasTotal = getGasTotal(gasLimit, gasPrice)
-    setGasTotal(newGasTotal)
+    updateGasTotal(newGasTotal)
   }
 }
 
@@ -157,6 +186,139 @@ SendTransactionScreen.prototype.componentDidUpdate = function (prevProps) {
   }
 }
 
+SendTransactionScreen.prototype.renderErrorMessage = function (errorType) {
+  const { errors } = this.props
+  const errorMessage = errors[errorType]
+
+  return errorMessage
+    ? h('div.send-v2__error', [ errorMessage ])
+    : null
+}
+
+SendTransactionScreen.prototype.handleFromChange = async function (newFrom) {
+  const {
+    updateSendFrom,
+    tokenContract,
+  } = this.props
+
+  if (tokenContract) {
+    const usersToken = await tokenContract.balanceOf(newFrom.address)
+    this.updateSendTokenBalance(usersToken)
+  }
+  updateSendFrom(newFrom)
+}
+
+SendTransactionScreen.prototype.renderFromRow = function () {
+  const {
+    from,
+    fromAccounts,
+    conversionRate,
+  } = this.props
+
+  const { fromDropdownOpen } = this.state
+
+  return h('div.send-v2__form-row', [
+
+    h('div.send-v2__form-label', 'From:'),
+
+    h('div.send-v2__form-field', [
+      h(FromDropdown, {
+        dropdownOpen: fromDropdownOpen,
+        accounts: fromAccounts,
+        selectedAccount: from,
+        onSelect: newFrom => this.handleFromChange(newFrom),
+        openDropdown: () => this.setState({ fromDropdownOpen: true }),
+        closeDropdown: () => this.setState({ fromDropdownOpen: false }),
+        conversionRate,
+      }),
+    ]),
+
+  ])
+}
+
+SendTransactionScreen.prototype.handleToChange = function (to, nickname = '') {
+  const {
+    updateSendTo,
+    updateSendErrors,
+  } = this.props
+  let toError = null
+
+  if (!to) {
+    toError = this.context.t('required')
+  } else if (!isValidAddress(to)) {
+    toError = this.context.t('invalidAddressRecipient')
+  }
+
+  updateSendTo(to, nickname)
+  updateSendErrors({ to: toError })
+}
+
+SendTransactionScreen.prototype.renderToRow = function () {
+  const { toAccounts, errors, to, network } = this.props
+
+  const { toDropdownOpen } = this.state
+
+  return h('div.send-v2__form-row', [
+
+    h('div.send-v2__form-label', [
+
+      this.context.t('to'),
+
+      this.renderErrorMessage(this.context.t('to')),
+
+    ]),
+
+    h('div.send-v2__form-field', [
+      h(EnsInput, {
+        name: 'address',
+        placeholder: 'Recipient Address',
+        network,
+        to,
+        accounts: Object.entries(toAccounts).map(([key, account]) => account),
+        dropdownOpen: toDropdownOpen,
+        openDropdown: () => this.setState({ toDropdownOpen: true }),
+        closeDropdown: () => this.setState({ toDropdownOpen: false }),
+        onChange: this.handleToChange,
+        inError: Boolean(errors.to),
+      }),
+    ]),
+
+  ])
+}
+
+SendTransactionScreen.prototype.handleAmountChange = function (value) {
+  const amount = value
+  const { updateSendAmount, setMaxModeTo } = this.props
+
+  setMaxModeTo(false)
+  this.validateAmount(amount)
+  updateSendAmount(amount)
+}
+
+SendTransactionScreen.prototype.setAmountToMax = function () {
+  const {
+    from: { balance },
+    updateSendAmount,
+    updateSendErrors,
+    tokenBalance,
+    selectedToken,
+    gasTotal,
+  } = this.props
+  const { decimals } = selectedToken || {}
+  const multiplier = Math.pow(10, Number(decimals || 0))
+
+  const maxAmount = selectedToken
+    ? multiplyCurrencies(tokenBalance, multiplier, {toNumericBase: 'hex'})
+    : subtractCurrencies(
+      ethUtil.addHexPrefix(balance),
+      ethUtil.addHexPrefix(gasTotal),
+      { toNumericBase: 'hex' }
+    )
+
+  updateSendErrors({ amount: null })
+
+  updateSendAmount(maxAmount)
+}
 
 SendTransactionScreen.prototype.validateAmount = function (value) {
   const {
@@ -203,29 +365,291 @@ SendTransactionScreen.prototype.validateAmount = function (value) {
   )
 
   if (conversionRate && !sufficientBalance) {
-    amountError = 'insufficientFunds'
+    amountError = this.context.t('insufficientFunds')
   } else if (verifyTokenBalance && !sufficientTokens) {
-    amountError = 'insufficientTokens'
+    amountError = this.context.t('insufficientTokens')
   } else if (amountLessThanZero) {
-    amountError = 'negativeETH'
+    amountError = this.context.t('negativeETH')
   }
 
   updateSendErrors({ amount: amountError })
 }
 
+SendTransactionScreen.prototype.renderAmountRow = function () {
+  const {
+    selectedToken,
+    primaryCurrency = 'ETH',
+    convertedCurrency,
+    amountConversionRate,
+    errors,
+    amount,
+    setMaxModeTo,
+    maxModeOn,
+    gasTotal,
+  } = this.props
+
+  return h('div.send-v2__form-row', [
+
+    h('div.send-v2__form-label', [
+      'Amount:',
+      this.renderErrorMessage('amount'),
+      !errors.amount && gasTotal && h('div.send-v2__amount-max', {
+        onClick: (event) => {
+          event.preventDefault()
+          setMaxModeTo(true)
+          this.setAmountToMax()
+        },
+      }, [ !maxModeOn ? this.context.t('max') : '' ]),
+    ]),
+
+    h('div.send-v2__form-field', [
+      h(CurrencyDisplay, {
+        inError: Boolean(errors.amount),
+        primaryCurrency,
+        convertedCurrency,
+        selectedToken,
+        value: amount || '0x0',
+        conversionRate: amountConversionRate,
+        handleChange: this.handleAmountChange,
+      }),
+    ]),
+
+  ])
+}
+
+SendTransactionScreen.prototype.renderGasRow = function () {
+  const {
+    conversionRate,
+    convertedCurrency,
+    showCustomizeGasModal,
+    gasTotal,
+  } = this.props
+  const { gasLoadingError } = this.state
+
+  return h('div.send-v2__form-row', [
+
+    h('div.send-v2__form-label', this.context.t('gasFee')),
+
+    h('div.send-v2__form-field', [
+
+      h(GasFeeDisplay, {
+        gasTotal,
+        conversionRate,
+        convertedCurrency,
+        onClick: showCustomizeGasModal,
+        gasLoadingError,
+      }),
+
+    ]),
+
+  ])
+}
+
+SendTransactionScreen.prototype.renderMemoRow = function () {
+  const { updateSendMemo, memo } = this.props
+
+  return h('div.send-v2__form-row', [
+
+    h('div.send-v2__form-label', 'Transaction Memo:'),
+
+    h('div.send-v2__form-field', [
+      h(MemoTextArea, {
+        memo,
+        onChange: (event) => updateSendMemo(event.target.value),
+      }),
+    ]),
+
+  ])
+}
+
+SendTransactionScreen.prototype.renderForm = function () {
+  return h(PageContainerContent, [
+    h('.send-v2__form', [
+      this.renderFromRow(),
+
+      this.renderToRow(),
+
+      this.renderAmountRow(),
+
+      this.renderGasRow(),
+    ]),
+  ])
+}
+
+SendTransactionScreen.prototype.renderFooter = function () {
+  const {
+    goHome,
+    clearSend,
+    gasTotal,
+    tokenBalance,
+    selectedToken,
+    errors: { amount: amountError, to: toError },
+  } = this.props
+
+  const missingTokenBalance = selectedToken && !tokenBalance
+  const noErrors = !amountError && toError === null
+
+  return h(PageContainerFooter, {
+    onCancel: () => {
+      clearSend()
+      goHome()
+    },
+    onSubmit: e => this.onSubmit(e),
+    disabled: !noErrors || !gasTotal || missingTokenBalance,
+  })
+}
+
 SendTransactionScreen.prototype.render = function () {
-  const { history } = this.props
+  const {
+    isToken,
+    clearSend,
+    goHome,
+    gasTotal,
+    tokenBalance,
+    selectedToken,
+    errors: { amount: amountError, to: toError },
+  } = this.props
+
+  const missingTokenBalance = selectedToken && !tokenBalance
+  const noErrors = !amountError && toError === null
 
   return (
 
-    h(PageContainer, [
+    h(PageContainer, {
+      title: isToken ? this.context.t('sendTokens') : this.context.t('sendETH'),
+      subtitle: this.context.t('onlySendToEtherAddress'),
+      onClose: () => {
+        clearSend()
+        goHome()
+      },
+      ContentComponent: this.renderForm,
+      onCancel: () => {
+        clearSend()
+        goHome()
+      },
+      onSubmit: e => this.onSubmit(e),
+      disabled: !noErrors || !gasTotal || missingTokenBalance,
+    })
+    // , [
 
-      h(SendHeader),
+    //   h(SendHeader),
 
-      h(SendContent),
+    //   this.renderForm(),
 
-      h(SendFooter, { history }),
-    ])
+    //   this.renderFooter(),
+    // ])
 
   )
 }
+
+SendTransactionScreen.prototype.addToAddressBookIfNew = function (newAddress, nickname = '') {
+  const { toAccounts, addToAddressBook } = this.props
+  if (!toAccounts.find(({ address }) => newAddress === address)) {
+    // TODO: nickname, i.e. addToAddressBook(recipient, nickname)
+    addToAddressBook(newAddress, nickname)
+  }
+}
+
+SendTransactionScreen.prototype.getEditedTx = function () {
+  const {
+    from: {address: from},
+    to,
+    amount,
+    gasLimit: gas,
+    gasPrice,
+    selectedToken,
+    editingTransactionId,
+    unapprovedTxs,
+  } = this.props
+
+  const editingTx = {
+    ...unapprovedTxs[editingTransactionId],
+    txParams: {
+      from: ethUtil.addHexPrefix(from),
+      gas: ethUtil.addHexPrefix(gas),
+      gasPrice: ethUtil.addHexPrefix(gasPrice),
+    },
+  }
+
+  if (selectedToken) {
+    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)
+    ).join('')
+
+    Object.assign(editingTx.txParams, {
+      value: ethUtil.addHexPrefix('0'),
+      to: ethUtil.addHexPrefix(selectedToken.address),
+      data,
+    })
+  } else {
+    const { data } = unapprovedTxs[editingTransactionId].txParams
+
+    Object.assign(editingTx.txParams, {
+      value: ethUtil.addHexPrefix(amount),
+      to: ethUtil.addHexPrefix(to),
+      data,
+    })
+
+    if (typeof editingTx.txParams.data === 'undefined') {
+      delete editingTx.txParams.data
+    }
+  }
+
+  return editingTx
+}
+
+SendTransactionScreen.prototype.onSubmit = function (event) {
+  event.preventDefault()
+  const {
+    from: {address: from},
+    to: _to,
+    amount,
+    gasLimit: gas,
+    gasPrice,
+    signTokenTx,
+    signTx,
+    updateTx,
+    selectedToken,
+    editingTransactionId,
+    toNickname,
+    errors: { amount: amountError, to: toError },
+  } = this.props
+
+  const noErrors = !amountError && toError === null
+
+  if (!noErrors) {
+    return
+  }
+
+  const to = ethUtil.addHexPrefix(_to)
+
+  this.addToAddressBookIfNew(to, toNickname)
+
+  if (editingTransactionId) {
+    const editedTx = this.getEditedTx()
+
+    updateTx(editedTx)
+  } else {
+
+    const txParams = {
+      from,
+      value: '0',
+      gas,
+      gasPrice,
+    }
+
+    if (!selectedToken) {
+      txParams.value = amount
+      txParams.to = to
+    }
+
+    Object.keys(txParams).forEach(key => {
+      txParams[key] = ethUtil.addHexPrefix(txParams[key])
+    })
+
+    selectedToken
+      ? signTokenTx(selectedToken.address, to, amount, txParams)
+      : signTx(txParams)
+  }
+}