Adds the content of the advanced tab - w/o chart or dynamic content - to gas customize modal.

21 files changed, 538 insertions, 63 deletions

diff --git a/app/_locales/en/messages.json b/app/_locales/en/messages.json
index 6e7df3aa8..103d8534f 100644
--- a/app/_locales/en/messages.json
+++ b/app/_locales/en/messages.json
@@ -701,6 +701,9 @@
   "missingYourTokens": {
     "message": "Don't see your tokens?"
   },
+  "minutesShorthand": {
+    "message": "Min"
+  },
   "myAccounts": {
     "message": "My Accounts"
   },
@@ -1036,6 +1039,9 @@
   "secretPhrase": {
     "message": "Enter your secret twelve word phrase here to restore your vault."
   },
+  "secondsShorthand": {
+    "message": "Sec"
+  },
   "seedPhraseReq": {
     "message": "Seed phrases are 12 words long"
   },
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/advanced-tab-content.component.js b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/advanced-tab-content.component.js
new file mode 100644
index 000000000..7ddf13e51
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/advanced-tab-content.component.js
@@ -0,0 +1,105 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import {
+  MIN_GAS_PRICE_DEC,
+  MIN_GAS_LIMIT_DEC,
+} from '../../../send/send.constants'
+import GasSlider from '../../gas-slider'
+import TimeRemaining from './time-remaining'
+
+export default class AdvancedTabContent extends Component {
+  static contextTypes = {
+    t: PropTypes.func,
+  }
+
+  static propTypes = {
+    updateCustomGasPrice: PropTypes.func,
+    updateCustomGasLimit: PropTypes.func,
+    customGasPrice: PropTypes.number,
+    customGasLimit: PropTypes.number,
+    millisecondsRemaining: PropTypes.number,
+  }
+
+  gasInput (value, onChange, min, precision, showGWEI) {
+    return (
+      <div className="advanced-tab__gas-edit-row__input-wrapper">
+        <input
+          className="advanced-tab__gas-edit-row__input"
+          type="number"
+          value={value}
+          onChange={event => onChange(Number(event.target.value))}
+        />
+        {showGWEI
+          ? <span className="advanced-tab__gas-edit-row__gwei-symbol">GWEI</span>
+          : null}
+      </div>
+    )
+  }
+
+  infoButton (onClick) {
+    return <i className="fa info-circle" onClick={onClick} />
+  }
+
+  render () {
+    const {
+      updateCustomGasPrice,
+      updateCustomGasLimit,
+      millisecondsRemaining,
+      customGasPrice,
+      customGasLimit,
+    } = this.props
+
+    return (
+      <div className="advanced-tab">
+        <div className="advanced-tab__transaction-data-summary">
+          <div className="advanced-tab__transaction-data-summary__titles">
+            <span>New Transaction Fee</span>
+            <span>~Transaction Time</span>
+          </div>
+          <div className="advanced-tab__transaction-data-summary__container">
+            <div className="advanced-tab__transaction-data-summary__fee">
+              $0.30
+            </div>
+            <TimeRemaining
+              milliseconds={millisecondsRemaining}
+            />
+          </div>
+        </div>
+        <div className="advanced-tab__fee-chart-title">
+          Live Transaction Fee Predictions
+        </div>
+        <div className="advanced-tab__fee-chart" />
+        <div className="advanced-tab__slider-container">
+          <GasSlider
+            onChange={value => {
+              updateCustomGasPrice(Number(value))
+            }}
+            lowLabel={'Cheaper'}
+            highLabel={'Faster'}
+            value={customGasPrice}
+            step={0.1}
+            max={200}
+            min={0}
+            coloredStart={{}}
+          />
+        </div>
+        <div className="advanced-tab__gas-edit-rows">
+          <div className="advanced-tab__gas-edit-row">
+            <div className="advanced-tab__gas-edit-row__label">
+              Gas Price
+              { this.infoButton(() => {}) }
+            </div>
+            { this.gasInput(customGasPrice, updateCustomGasPrice, MIN_GAS_PRICE_DEC, 9, true) }
+          </div>
+          <div className="advanced-tab__gas-edit-row">
+            <div className="advanced-tab__gas-edit-row__label">
+              Gas Limit
+              { this.infoButton(() => {}) }
+            </div>
+            { this.gasInput(customGasLimit, updateCustomGasLimit, MIN_GAS_LIMIT_DEC, 0) }
+          </div>
+        </div>
+      </div>
+    )
+  }
+}
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/index.js b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/index.js
new file mode 100644
index 000000000..492037f25
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/index.js
@@ -0,0 +1 @@
+export { default } from './advanced-tab-content.component'
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/index.scss b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/index.scss
new file mode 100644
index 000000000..5dc30e061
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/index.scss
@@ -0,0 +1,109 @@
+@import './time-remaining/index';
+
+.advanced-tab {
+  display: flex;
+  flex-flow: column;
+  border-bottom: 1px solid $alto;
+
+  &__transaction-data-summary,
+  &__fee-chart-title,
+  &__gas-edit-row {
+    padding-left: 24px;
+    padding-right: 24px;
+  }
+
+  &__transaction-data-summary {
+    display: flex;
+    flex-flow: column;
+    color: $mid-gray;
+    margin-top: 12px;
+
+    &__titles,
+    &__container {
+      display: flex;
+      flex-flow: row;
+      justify-content: space-between;
+      font-size: 12px;
+    }
+
+    &__container {
+      font-size: 26px;
+      margin-top: 6px;  
+    }
+  }
+
+  &__fee-chart-title {
+    font-size: 14px;
+    color: $scorpion;
+    margin-top: 22px;
+  }
+
+  &__fee-chart {
+    padding-left: 10px;
+    margin-top: 24px;
+    height: 134px;
+  }
+
+  &__slider-container {
+    padding-left: 27px;
+    padding-right: 27px;
+  }
+
+  &__gas-edit-rows {
+    margin-top: 44px;
+    height: 87px;
+    display: flex;
+    flex-flow: column;
+    justify-content: space-between;
+  }
+
+  &__gas-edit-row {
+    display: flex;
+    flex-flow: row;
+    justify-content: space-between;
+
+    &__label {
+      color: $mid-gray;
+      font-size: 16px;
+      
+      .info-circle {
+        color: $silver;
+        margin-left: 10px;
+      }
+    }
+
+
+    &__input-wrapper {
+      position: relative;
+    }
+
+    &__input {
+      border: 1px solid $dusty-gray;
+      border-radius: 4px;
+      color: $mid-gray;
+      font-size: 16px;
+      height: 37px;
+      width: 163px;
+      padding: 8px 10px 10px 10px;
+    }
+
+    input[type="number"]::-webkit-inner-spin-button {
+      -webkit-appearance: none;
+      -moz-appearance: none;
+      display: none;
+    }
+
+    input[type="number"]:hover::-webkit-inner-spin-button {
+      -webkit-appearance: none;
+      -moz-appearance: none;
+      display: none;
+    }
+
+    &__gwei-symbol {
+      position: absolute;
+      top: 8px;
+      right: 10px;
+      color: $dusty-gray;
+    }
+  }
+}
\ No newline at end of file
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/index.js b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/index.js
new file mode 100644
index 000000000..61b681e1a
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/index.js
@@ -0,0 +1 @@
+export { default } from './time-remaining.component'
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/index.scss b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/index.scss
new file mode 100644
index 000000000..01bb06268
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/index.scss
@@ -0,0 +1,13 @@
+.time-remaining {
+  .minutes-num, .seconds-num {
+    font-size: 26px;
+  }
+
+  .seconds-num {
+    margin-left: 7px;
+  }
+
+  .minutes-label, .seconds-label {
+    font-size: 14px;
+  }
+}
\ No newline at end of file
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/time-remaining.component.js b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/time-remaining.component.js
new file mode 100644
index 000000000..826d41f9c
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/time-remaining.component.js
@@ -0,0 +1,33 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import { getTimeBreakdown } from './time-remaining.utils'
+
+export default class TimeRemaining extends Component {
+  static contextTypes = {
+    t: PropTypes.func,
+  }
+
+  static propTypes = {
+    milliseconds: PropTypes.number,
+  }
+
+  render () {
+    const {
+      milliseconds,
+    } = this.props
+
+    const {
+      minutes,
+      seconds,
+    } = getTimeBreakdown(milliseconds)
+
+    return (
+      <div className="time-remaining">
+        <span className="minutes-num">{minutes}</span>
+        <span className="minutes-label">{this.context.t('minutesShorthand')}</span>
+        <span className="seconds-num">{seconds}</span>
+        <span className="seconds-label">{this.context.t('secondsShorthand')}</span>
+      </div>
+    )
+  }
+}
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/time-remaining.utils.js b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/time-remaining.utils.js
new file mode 100644
index 000000000..cf43e0acb
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-modal-page-container/advanced-tab-content/time-remaining/time-remaining.utils.js
@@ -0,0 +1,11 @@
+function getTimeBreakdown (milliseconds) {
+  return {
+    hours: Math.floor(milliseconds / 3600000),
+    minutes: Math.floor((milliseconds % 3600000) / 60000),
+    seconds: Math.floor((milliseconds % 60000) / 1000),
+  }
+}
+
+module.exports = {
+  getTimeBreakdown,
+}
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js
index 697594ec9..1d7a9d986 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js
+++ b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.component.js
@@ -2,6 +2,7 @@ import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import PageContainer from '../../page-container'
 import { Tabs, Tab } from '../../tabs'
+import AdvancedTabContent from './advanced-tab-content'
 
 export default class GasModalPageContainer extends Component {
   static contextTypes = {
@@ -10,6 +11,10 @@ export default class GasModalPageContainer extends Component {
 
   static propTypes = {
     hideModal: PropTypes.func,
+    updateCustomGasPrice: PropTypes.func,
+    updateCustomGasLimit: PropTypes.func,
+    customGasPrice: PropTypes.number,
+    customGasLimit: PropTypes.number,
   }
 
   state = {}
@@ -20,9 +25,22 @@ export default class GasModalPageContainer extends Component {
     )
   }
 
-  renderAdvancedTabContent () {
+  renderAdvancedTabContent = () => {
+    const {
+      updateCustomGasPrice,
+      updateCustomGasLimit,
+      customGasPrice,
+      customGasLimit,
+    } = this.props
+
     return (
-      <div className="gas-modal-content__advanced-tab"/>
+      <AdvancedTabContent
+        updateCustomGasPrice={updateCustomGasPrice}
+        updateCustomGasLimit={updateCustomGasLimit}
+        customGasPrice={customGasPrice}
+        customGasLimit={customGasLimit}
+        millisecondsRemaining={91000}
+      />
     )
   }
 
@@ -68,14 +86,16 @@ export default class GasModalPageContainer extends Component {
     const { hideModal } = this.props
 
     return (
-      <PageContainer
-        title={this.context.t('customGas')}
-        subtitle={this.context.t('customGasSubTitle')}
-        tabsComponent={this.renderTabs()}
-        disabled={false}
-        onCancel={() => hideModal()}
-        onClose={() => hideModal()}
-      />
+      <div className="gas-modal-page-container">
+        <PageContainer
+          title={this.context.t('customGas')}
+          subtitle={this.context.t('customGasSubTitle')}
+          tabsComponent={this.renderTabs()}
+          disabled={false}
+          onCancel={() => hideModal()}
+          onClose={() => hideModal()}
+        />
+      </div>
     )
   }
 }
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js
index 71c700507..f7ac91a38 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js
+++ b/ui/app/components/gas-customization/gas-modal-page-container/gas-modal-page-container.container.js
@@ -1,11 +1,28 @@
 import { connect } from 'react-redux'
 import GasModalPageContainer from './gas-modal-page-container.component'
 import { hideModal } from '../../../actions'
+import {
+  setCustomGasPrice,
+  setCustomGasLimit,
+} from '../../../ducks/custom-gas'
+import {
+  getCustomGasPrice,
+  getCustomGasLimit,
+} from '../../../selectors/custom-gas'
+
+const mapStateToProps = state => {
+  return {
+    customGasPrice: getCustomGasPrice(state),
+    customGasLimit: getCustomGasLimit(state),
+  }
+}
 
 const mapDispatchToProps = dispatch => {
   return {
     hideModal: () => dispatch(hideModal()),
+    updateCustomGasPrice: (newPrice) => dispatch(setCustomGasPrice(newPrice)),
+    updateCustomGasLimit: (newLimit) => dispatch(setCustomGasLimit(newLimit)),
   }
 }
 
-export default connect(null, mapDispatchToProps)(GasModalPageContainer)
+export default connect(mapStateToProps, mapDispatchToProps)(GasModalPageContainer)
diff --git a/ui/app/components/gas-customization/gas-modal-page-container/index.scss b/ui/app/components/gas-customization/gas-modal-page-container/index.scss
index a6609a385..027165b48 100644
--- a/ui/app/components/gas-customization/gas-modal-page-container/index.scss
+++ b/ui/app/components/gas-customization/gas-modal-page-container/index.scss
@@ -1,3 +1,11 @@
+@import './advanced-tab-content/index';
+
+.gas-modal-page-container {
+  .page-container {
+    width: 391px;
+  }
+}
+
 .gas-modal-content {
   &__basic-tab {
     height: 219px;
diff --git a/ui/app/components/gas-customization/gas-slider/gas-slider.component.js b/ui/app/components/gas-customization/gas-slider/gas-slider.component.js
new file mode 100644
index 000000000..5836e7dfc
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-slider/gas-slider.component.js
@@ -0,0 +1,48 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+
+export default class AdvancedTabContent extends Component {
+  static propTypes = {
+    onChange: PropTypes.func,
+    lowLabel: PropTypes.string,
+    highLabel: PropTypes.string,
+    value: PropTypes.number,
+    step: PropTypes.number,
+    max: PropTypes.number,
+    min: PropTypes.number,
+  }
+
+  render () {
+    const {
+      onChange,
+      lowLabel,
+      highLabel,
+      value,
+      step,
+      max,
+      min,
+    } = this.props
+
+    return (
+      <div className="gas-slider">
+        <input
+          className="gas-slider__input"
+          type="range"
+          step={step}
+          max={max}
+          min={min}
+          value={value}
+          id="gasSlider"
+          onChange={event => onChange(event.target.value)}
+        />
+        <div className="gas-slider__bar">
+          <div className="gas-slider__colored"/>
+        </div>
+        <div className="gas-slider__labels">
+          <span>{lowLabel}</span>
+          <span>{highLabel}</span>
+        </div>
+      </div>
+    )
+  }
+}
diff --git a/ui/app/components/gas-customization/gas-slider/index.js b/ui/app/components/gas-customization/gas-slider/index.js
new file mode 100644
index 000000000..f1752c93f
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-slider/index.js
@@ -0,0 +1 @@
+export { default } from './gas-slider.component'
diff --git a/ui/app/components/gas-customization/gas-slider/index.scss b/ui/app/components/gas-customization/gas-slider/index.scss
new file mode 100644
index 000000000..e6c734367
--- /dev/null
+++ b/ui/app/components/gas-customization/gas-slider/index.scss
@@ -0,0 +1,54 @@
+.gas-slider {
+  position: relative;
+  width: 322px;
+
+  &__input {
+    width: 322px;
+    margin-left: -2px;
+    z-index: 2;
+  }
+
+  input[type=range] {
+    -webkit-appearance: none !important;
+  }
+
+  input[type=range]::-webkit-slider-thumb {
+    -webkit-appearance: none !important;
+    height: 34px;
+    width: 34px;
+    background-color: $curious-blue;
+    box-shadow: 0 2px 4px 0 rgba(0,0,0,0.08);
+    border-radius: 50%;
+    position: relative;
+    z-index: 10;
+  }
+
+  &__bar {
+    height: 6px;
+    width: 322px;
+    background: $alto;
+    display: flex;
+    justify-content: space-between;
+    position: absolute;
+    top: 16px;
+    z-index: 0;
+    border-radius: 4px;
+  }
+
+  &__colored {
+    height: 6px;
+    border-radius: 4px;
+    margin-left: 102px; 
+    width: 322px;
+    z-index: 1;
+    background-color: $blizzard-blue;
+  }
+
+  &__labels {
+    display: flex;
+    justify-content: space-between;
+    font-size: 12px;
+    margin-top: -6px;
+    color: $mid-gray;
+  }
+}
\ No newline at end of file
diff --git a/ui/app/components/gas-customization/index.scss b/ui/app/components/gas-customization/index.scss
new file mode 100644
index 000000000..91ca5004e
--- /dev/null
+++ b/ui/app/components/gas-customization/index.scss
@@ -0,0 +1,3 @@
+@import './gas-slider/index';
+
+@import './gas-modal-page-container/index';
diff --git a/ui/app/components/index.scss b/ui/app/components/index.scss
index 48c6496d9..156b1b9f6 100644
--- a/ui/app/components/index.scss
+++ b/ui/app/components/index.scss
@@ -64,4 +64,10 @@
 
 @import './unit-input/index';
 
-@import './gas-customization/gas-modal-page-container/index'
+@import './gas-customization/gas-modal-page-container/index';
+
+@import './gas-customization/gas-modal-page-container/index';
+
+@import './gas-customization/gas-modal-page-container/index';
+
+@import './gas-customization/index';
diff --git a/ui/app/css/itcss/components/gas-slider.scss b/ui/app/css/itcss/components/gas-slider.scss
index c27a560bd..e69de29bb 100644
--- a/ui/app/css/itcss/components/gas-slider.scss
+++ b/ui/app/css/itcss/components/gas-slider.scss
@@ -1,51 +0,0 @@
-.gas-slider {
-  position: relative;
-  width: 313px;
-
-  &__input {
-    width: 317px;
-    margin-left: -2px;
-    z-index: 2;
-  }
-
-  input[type=range] {
-    -webkit-appearance: none !important;
-  }
-
-  input[type=range]::-webkit-slider-thumb {
-    -webkit-appearance: none !important;
-    height: 26px;
-    width: 26px;
-    border: 2px solid #B8B8B8;
-    background-color: #FFFFFF;
-    box-shadow: 0 2px 4px 0 rgba(0,0,0,0.08);
-    border-radius: 50%;
-    position: relative;
-    z-index: 10;
-  }
-
-  &__bar {
-    height: 6px;
-    width: 313px;
-    background: $alto;
-    display: flex;
-    justify-content: space-between;
-    position: absolute;
-    top: 11px;
-    z-index: 0;
-  }
-
-  &__low, &__high {
-    height: 6px;
-    width: 49px;
-    z-index: 1;
-  }
-
-  &__low {
-    background-color: $crimson;
-  }
-
-  &__high {
-    background-color: $caribbean-green;
-  }
-}
\ No newline at end of file
diff --git a/ui/app/css/itcss/settings/variables.scss b/ui/app/css/itcss/settings/variables.scss
index 6c2b82f39..1c95f06a0 100644
--- a/ui/app/css/itcss/settings/variables.scss
+++ b/ui/app/css/itcss/settings/variables.scss
@@ -57,6 +57,7 @@ $ecstasy: #f7861c;
 $linen: #fdf4f4;
 $oslo-gray: #8C8E94;
 $polar: #fafcfe;
+$blizzard-blue: #bfdef3;
 
 /*
   Z-Indicies
diff --git a/ui/app/ducks/custom-gas.js b/ui/app/ducks/custom-gas.js
new file mode 100644
index 000000000..f1f483e93
--- /dev/null
+++ b/ui/app/ducks/custom-gas.js
@@ -0,0 +1,67 @@
+import extend from 'xtend'
+
+// Actions
+const SET_CUSTOM_GAS_PRICE = 'metamask/custom-gas/SET_CUSTOM_GAS_PRICE'
+const SET_CUSTOM_GAS_LIMIT = 'metamask/custom-gas/SET_CUSTOM_GAS_LIMIT'
+const SET_CUSTOM_GAS_ERRORS = 'metamask/custom-gas/SET_CUSTOM_GAS_ERRORS'
+const RESET_CUSTOM_GAS_STATE = 'metamask/custom-gas/RESET_CUSTOM_GAS_STATE'
+
+// TODO: determine if this approach to initState is consistent with conventional ducks pattern
+const initState = {
+  price: 0,
+  limit: 21000,
+  errors: {},
+}
+
+// Reducer
+export default function reducer ({ customGas: customGasState = initState }, action = {}) {
+  const newState = extend({}, customGasState)
+
+  switch (action.type) {
+    case SET_CUSTOM_GAS_PRICE:
+      return extend(newState, {
+        price: action.value,
+      })
+    case SET_CUSTOM_GAS_LIMIT:
+      return extend(newState, {
+        limit: action.value,
+      })
+    case SET_CUSTOM_GAS_ERRORS:
+      return extend(newState, {
+        errors: {
+          ...newState.errors,
+          ...action.value,
+        },
+      })
+    case RESET_CUSTOM_GAS_STATE:
+      return extend({}, initState)
+    default:
+      return newState
+  }
+}
+
+// Action Creators
+export function setCustomGasPrice (newPrice) {
+  return {
+    type: SET_CUSTOM_GAS_PRICE,
+    value: newPrice,
+  }
+}
+
+export function setCustomGasLimit (newLimit) {
+  return {
+    type: SET_CUSTOM_GAS_LIMIT,
+    value: newLimit,
+  }
+}
+
+export function setCustomGasErrors (newErrors) {
+  return {
+    type: SET_CUSTOM_GAS_ERRORS,
+    value: newErrors,
+  }
+}
+
+export function resetCustomGasState () {
+  return { type: RESET_CUSTOM_GAS_STATE }
+}
diff --git a/ui/app/reducers.js b/ui/app/reducers.js
index e1a982f93..7234c3c02 100644
--- a/ui/app/reducers.js
+++ b/ui/app/reducers.js
@@ -10,6 +10,7 @@ const reduceApp = require('./reducers/app')
 const reduceLocale = require('./reducers/locale')
 const reduceSend = require('./ducks/send.duck').default
 import reduceConfirmTransaction from './ducks/confirm-transaction.duck'
+import reduceCustomGas from './ducks/custom-gas'
 
 window.METAMASK_CACHED_LOG_STATE = null
 
@@ -49,6 +50,8 @@ function rootReducer (state, action) {
 
   state.confirmTransaction = reduceConfirmTransaction(state, action)
 
+  state.customGas = reduceCustomGas(state, action)
+
   window.METAMASK_CACHED_LOG_STATE = state
   return state
 }
diff --git a/ui/app/selectors/custom-gas.js b/ui/app/selectors/custom-gas.js
new file mode 100644
index 000000000..97280190f
--- /dev/null
+++ b/ui/app/selectors/custom-gas.js
@@ -0,0 +1,19 @@
+const selectors = {
+  getCustomGasPrice,
+  getCustomGasLimit,
+  getCustomGasErrors,
+}
+
+module.exports = selectors
+
+function getCustomGasPrice (state) {
+  return state.customGas.price
+}
+
+function getCustomGasLimit (state) {
+  return state.customGas.limit
+}
+
+function getCustomGasErrors (state) {
+  return state.customGas.errors
+}