Add token selection to the send screen (#6445)

* Move send to pages/

* Fix unit tests

* Finish UI

* Integrate asset dropdown to send actions

* Remove console.log

* Hide asset change during edit

* Enable switch from send token to seand eth

* Enable switching from token to eth when editing

* Fix linter

* Fixing test

* Fix unit tests

* Fix linter

* Fix react warning; remove console.log

* fix flat test

* Add metrics

* Address code review comments

* Consistent spacing between send screen form rows.

* Reduce height of gas buttons on send screen.

* Make send screen gas button height dependent on size of contents.

1 files changed, 142 insertions, 0 deletions

diff --git a/ui/app/pages/send/send-footer/send-footer.component.js b/ui/app/pages/send/send-footer/send-footer.component.js
new file mode 100644
index 000000000..16a8fdde2
--- /dev/null
+++ b/ui/app/pages/send/send-footer/send-footer.component.js
@@ -0,0 +1,142 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import PageContainerFooter from '../../../components/ui/page-container/page-container-footer'
+import { CONFIRM_TRANSACTION_ROUTE, DEFAULT_ROUTE } from '../../../helpers/constants/routes'
+
+export default class SendFooter extends Component {
+
+  static propTypes = {
+    addToAddressBookIfNew: PropTypes.func,
+    amount: PropTypes.string,
+    data: PropTypes.string,
+    clearSend: PropTypes.func,
+    disabled: PropTypes.bool,
+    editingTransactionId: PropTypes.string,
+    errors: PropTypes.object,
+    from: PropTypes.object,
+    gasLimit: PropTypes.string,
+    gasPrice: PropTypes.string,
+    gasTotal: PropTypes.string,
+    history: PropTypes.object,
+    inError: PropTypes.bool,
+    selectedToken: PropTypes.object,
+    sign: PropTypes.func,
+    to: PropTypes.string,
+    toAccounts: PropTypes.array,
+    tokenBalance: PropTypes.string,
+    unapprovedTxs: PropTypes.object,
+    update: PropTypes.func,
+    sendErrors: PropTypes.object,
+    gasChangedLabel: PropTypes.string,
+  }
+
+  static contextTypes = {
+    t: PropTypes.func,
+    metricsEvent: PropTypes.func,
+  };
+
+  onCancel () {
+    this.props.clearSend()
+    this.props.history.push(DEFAULT_ROUTE)
+  }
+
+  onSubmit (event) {
+    event.preventDefault()
+    const {
+      addToAddressBookIfNew,
+      amount,
+      data,
+      editingTransactionId,
+      from: {address: from},
+      gasLimit: gas,
+      gasPrice,
+      selectedToken,
+      sign,
+      to,
+      unapprovedTxs,
+      // updateTx,
+      update,
+      toAccounts,
+      history,
+      gasChangedLabel,
+    } = this.props
+    const { metricsEvent } = this.context
+
+    // Should not be needed because submit should be disabled if there are errors.
+    // const noErrors = !amountError && toError === null
+
+    // if (!noErrors) {
+    //   return
+    // }
+
+    // TODO: add nickname functionality
+    addToAddressBookIfNew(to, toAccounts)
+    const promise = editingTransactionId
+      ? update({
+        amount,
+        data,
+        editingTransactionId,
+        from,
+        gas,
+        gasPrice,
+        selectedToken,
+        to,
+        unapprovedTxs,
+      })
+      : sign({ data, selectedToken, to, amount, from, gas, gasPrice })
+
+    Promise.resolve(promise)
+      .then(() => {
+        metricsEvent({
+          eventOpts: {
+            category: 'Transactions',
+            action: 'Edit Screen',
+            name: 'Complete',
+          },
+          customVariables: {
+            gasChanged: gasChangedLabel,
+          },
+        })
+        history.push(CONFIRM_TRANSACTION_ROUTE)
+      })
+  }
+
+  formShouldBeDisabled () {
+    const { data, inError, selectedToken, tokenBalance, gasTotal, to } = this.props
+    const missingTokenBalance = selectedToken && !tokenBalance
+    const shouldBeDisabled = inError || !gasTotal || missingTokenBalance || !(data || to)
+    return shouldBeDisabled
+  }
+
+  componentDidUpdate (prevProps) {
+    const { inError, sendErrors } = this.props
+    const { metricsEvent } = this.context
+    if (!prevProps.inError && inError) {
+      const errorField = Object.keys(sendErrors).find(key => sendErrors[key])
+      const errorMessage = sendErrors[errorField]
+
+      metricsEvent({
+        eventOpts: {
+          category: 'Transactions',
+          action: 'Edit Screen',
+          name: 'Error',
+        },
+        customVariables: {
+          errorField,
+          errorMessage,
+        },
+      })
+    }
+  }
+
+  render () {
+    return (
+      <PageContainerFooter
+        onCancel={() => this.onCancel()}
+        onSubmit={e => this.onSubmit(e)}
+        disabled={this.formShouldBeDisabled()}
+      />
+    )
+  }
+
+}