Merge pull request #4386 from MetaMask/i4077-replace-currency-input-with-numeric-input

Replace currency-input.js with NumericInput

6 files changed, 92 insertions, 153 deletions

diff --git a/ui/app/components/currency-input.js b/ui/app/components/currency-input.js
deleted file mode 100644
index ece3eb43d..000000000
--- a/ui/app/components/currency-input.js
+++ /dev/null
@@ -1,113 +0,0 @@
-const Component = require('react').Component
-const h = require('react-hyperscript')
-const inherits = require('util').inherits
-
-module.exports = CurrencyInput
-
-inherits(CurrencyInput, Component)
-function CurrencyInput (props) {
-  Component.call(this)
-
-  const sanitizedValue = sanitizeValue(props.value)
-
-  this.state = {
-    value: sanitizedValue,
-    emptyState: false,
-    focused: false,
-  }
-}
-
-function removeNonDigits (str) {
-  return str.match(/\d|$/g).join('')
-}
-
-// Removes characters that are not digits, then removes leading zeros
-function sanitizeInteger (val) {
-  return String(parseInt(removeNonDigits(val) || '0', 10))
-}
-
-function sanitizeDecimal (val) {
-  return removeNonDigits(val)
-}
-
-// Take a single string param and returns a non-negative integer or float as a string.
-// Breaks the input into three parts: the integer, the decimal point, and the decimal/fractional part.
-// Removes leading zeros from the integer, and non-digits from the integer and decimal
-// The integer is returned as '0' in cases where it would be empty. A decimal point is
-// included in the returned string if one is included in the param
-// Examples:
-//  sanitizeValue('0') -> '0'
-//  sanitizeValue('a') -> '0'
-//  sanitizeValue('010.') -> '10.'
-//  sanitizeValue('0.005') -> '0.005'
-//  sanitizeValue('22.200') -> '22.200'
-//  sanitizeValue('.200') -> '0.200'
-//  sanitizeValue('a.b.1.c,89.123') -> '0.189123'
-function sanitizeValue (value) {
-  let [ , integer, point, decimal] = (/([^.]*)([.]?)([^.]*)/).exec(value)
-
-  integer = sanitizeInteger(integer) || '0'
-  decimal = sanitizeDecimal(decimal)
-
-  return `${integer}${point}${decimal}`
-}
-
-CurrencyInput.prototype.handleChange = function (newValue) {
-  const { onInputChange } = this.props
-  const { value } = this.state
-
-  let parsedValue = newValue
-  const newValueLastIndex = newValue.length - 1
-
-  if (value === '0' && newValue[newValueLastIndex] === '0') {
-    parsedValue = parsedValue.slice(0, newValueLastIndex)
-  }
-  const sanitizedValue = sanitizeValue(parsedValue)
-  this.setState({
-    value: sanitizedValue,
-    emptyState: newValue === '' && sanitizedValue === '0',
-  })
-  onInputChange(sanitizedValue)
-}
-
-// If state.value === props.value plus a decimal point, or at least one
-// zero or a decimal point and at least one zero, then this returns state.value
-// after it is sanitized with getValueParts
-CurrencyInput.prototype.getValueToRender = function () {
-  const { value } = this.props
-  const { value: stateValue } = this.state
-
-  const trailingStateString = (new RegExp(`^${value}(.+)`)).exec(stateValue)
-  const trailingDecimalAndZeroes = trailingStateString && (/^[.0]0*/).test(trailingStateString[1])
-
-  return sanitizeValue(trailingDecimalAndZeroes
-    ? stateValue
-    : value)
-}
-
-CurrencyInput.prototype.render = function () {
-  const {
-    className,
-    placeholder,
-    readOnly,
-    inputRef,
-    type,
-  } = this.props
-  const { emptyState, focused } = this.state
-
-  const inputSizeMultiplier = readOnly ? 1 : 1.2
-
-  const valueToRender = this.getValueToRender()
-  return h('input', {
-    className,
-    type,
-    value: emptyState ? '' : valueToRender,
-    placeholder: focused ? '' : placeholder,
-    size: valueToRender.length * inputSizeMultiplier,
-    readOnly,
-    onFocus: () => this.setState({ focused: true, emptyState: valueToRender === '0' }),
-    onBlur: () => this.setState({ focused: false, emptyState: false }),
-    onChange: e => this.handleChange(e.target.value),
-    ref: inputRef,
-  })
-}
diff --git a/ui/app/components/input-number.js b/ui/app/components/input-number.js
index 5600e35ee..de5fcca54 100644
--- a/ui/app/components/input-number.js
+++ b/ui/app/components/input-number.js
@@ -1,7 +1,6 @@
 const Component = require('react').Component
 const h = require('react-hyperscript')
 const inherits = require('util').inherits
-const CurrencyInput = require('./currency-input')
 const {
   addCurrencies,
   conversionGTE,
@@ -51,14 +50,15 @@ InputNumber.prototype.render = function () {
   const { unitLabel, step = 1, placeholder, value = 0 } = this.props
 
   return h('div.customize-gas-input-wrapper', {}, [
-    h(CurrencyInput, {
+    h('input', {
       className: 'customize-gas-input',
       value,
       placeholder,
       type: 'number',
-      onInputChange: newValue => {
-        this.setValue(newValue)
+      onChange: e => {
+        this.setValue(e.target.value)
       },
+      min: 0,
     }),
     h('span.gas-tooltip-input-detail', {}, [unitLabel]),
     h('div.gas-tooltip-input-arrows', {}, [
diff --git a/ui/app/components/send/currency-display.js b/ui/app/components/send/currency-display.js
index 90fb2b66c..360dd15d4 100644
--- a/ui/app/components/send/currency-display.js
+++ b/ui/app/components/send/currency-display.js
@@ -1,7 +1,6 @@
 const Component = require('react').Component
 const h = require('react-hyperscript')
 const inherits = require('util').inherits
-const CurrencyInput = require('../currency-input')
 const { conversionUtil, multiplyCurrencies } = require('../../conversion-util')
 const currencyFormatter = require('currency-formatter')
 const currencies = require('currency-formatter/currencies')
@@ -21,21 +20,36 @@ function toHexWei (value) {
   })
 }
 
+CurrencyDisplay.prototype.componentWillMount = function () {
+  this.setState({
+    valueToRender: this.getValueToRender(this.props),
+  })
+}
+
+CurrencyDisplay.prototype.componentWillReceiveProps = function (nextProps) {
+  const currentValueToRender = this.getValueToRender(this.props)
+  const newValueToRender = this.getValueToRender(nextProps)
+  if (currentValueToRender !== newValueToRender) {
+    this.setState({
+      valueToRender: newValueToRender,
+    })
+  }
+}
+
 CurrencyDisplay.prototype.getAmount = function (value) {
   const { selectedToken } = this.props
   const { decimals } = selectedToken || {}
   const multiplier = Math.pow(10, Number(decimals || 0))
 
-  const sendAmount = multiplyCurrencies(value, multiplier, {toNumericBase: 'hex'})
+  const sendAmount = multiplyCurrencies(value || '0', multiplier, {toNumericBase: 'hex'})
 
   return selectedToken
     ? sendAmount
     : toHexWei(value)
 }
 
-CurrencyDisplay.prototype.getValueToRender = function () {
-  const { selectedToken, conversionRate, value } = this.props
-
+CurrencyDisplay.prototype.getValueToRender = function ({ selectedToken, conversionRate, value }) {
+  if (value === '0x0') return '0'
   const { decimals, symbol } = selectedToken || {}
   const multiplier = Math.pow(10, Number(decimals || 0))
 
@@ -76,6 +90,18 @@ CurrencyDisplay.prototype.getConvertedValueToRender = function (nonFormattedValu
     : convertedValue
 }
 
+CurrencyDisplay.prototype.handleChange = function (newVal) {
+  this.setState({ valueToRender: newVal })
+  this.props.onChange(this.getAmount(newVal))
+}
+
+CurrencyDisplay.prototype.getInputWidth = function (valueToRender, readOnly) {
+  const valueString = String(valueToRender)
+  const valueLength = valueString.length || 1
+  const decimalPointDeficit = valueString.match(/\./) ? -0.5 : 0
+  return (valueLength + decimalPointDeficit + 0.75) + 'ch'
+}
+
 CurrencyDisplay.prototype.render = function () {
   const {
     className = 'currency-display',
@@ -85,10 +111,10 @@ CurrencyDisplay.prototype.render = function () {
     convertedCurrency,
     readOnly = false,
     inError = false,
-    handleChange,
+    onBlur,
   } = this.props
+  const { valueToRender } = this.state
 
-  const valueToRender = this.getValueToRender()
   const convertedValueToRender = this.getConvertedValueToRender(valueToRender)
 
   return h('div', {
@@ -96,24 +122,30 @@ CurrencyDisplay.prototype.render = function () {
     style: {
       borderColor: inError ? 'red' : null,
     },
-    onClick: () => this.currencyInput && this.currencyInput.focus(),
+    onClick: () => {
+      this.currencyInput && this.currencyInput.focus()
+    },
   }, [
 
     h('div.currency-display__primary-row', [
 
       h('div.currency-display__input-wrapper', [
 
-        h(readOnly ? 'input' : CurrencyInput, {
+        h('input', {
           className: primaryBalanceClassName,
           value: `${valueToRender}`,
           placeholder: '0',
+          type: 'number',
           readOnly,
           ...(!readOnly ? {
-            onInputChange: newValue => {
-              handleChange(this.getAmount(newValue))
-            },
-            inputRef: input => { this.currencyInput = input },
+            onChange: e => this.handleChange(e.target.value),
+            onBlur: () => onBlur(this.getAmount(valueToRender)),
           } : {}),
+          ref: input => { this.currencyInput = input },
+          style: {
+            width: this.getInputWidth(valueToRender, readOnly),
+          },
+          min: 0,
         }),
 
         h('span.currency-display__currency-symbol', primaryCurrency),
diff --git a/ui/app/components/send_/send-content/send-amount-row/send-amount-row.component.js b/ui/app/components/send_/send-content/send-amount-row/send-amount-row.component.js
index b094d0cd5..8aefeed4a 100644
--- a/ui/app/components/send_/send-content/send-amount-row/send-amount-row.component.js
+++ b/ui/app/components/send_/send-content/send-amount-row/send-amount-row.component.js
@@ -49,11 +49,10 @@ export default class SendAmountRow extends Component {
     })
   }
 
-  handleAmountChange (amount) {
+  updateAmount (amount) {
     const { updateSendAmount, setMaxModeTo } = this.props
 
     setMaxModeTo(false)
-    this.validateAmount(amount)
     updateSendAmount(amount)
   }
 
@@ -78,7 +77,8 @@ export default class SendAmountRow extends Component {
         <CurrencyDisplay
           conversionRate={amountConversionRate}
           convertedCurrency={convertedCurrency}
-          handleChange={newAmount => this.handleAmountChange(newAmount)}
+          onBlur={newAmount => this.updateAmount(newAmount)}
+          onChange={newAmount => this.validateAmount(newAmount)}
           inError={inError}
           primaryCurrency={primaryCurrency || 'ETH'}
           selectedToken={selectedToken}
diff --git a/ui/app/components/send_/send-content/send-amount-row/tests/send-amount-row-component.test.js b/ui/app/components/send_/send-content/send-amount-row/tests/send-amount-row-component.test.js
index 31d2e2515..2205579ca 100644
--- a/ui/app/components/send_/send-content/send-amount-row/tests/send-amount-row-component.test.js
+++ b/ui/app/components/send_/send-content/send-amount-row/tests/send-amount-row-component.test.js
@@ -14,7 +14,7 @@ const propsMethodSpies = {
   updateSendAmountError: sinon.spy(),
 }
 
-sinon.spy(SendAmountRow.prototype, 'handleAmountChange')
+sinon.spy(SendAmountRow.prototype, 'updateAmount')
 sinon.spy(SendAmountRow.prototype, 'validateAmount')
 
 describe('SendAmountRow Component', function () {
@@ -45,7 +45,7 @@ describe('SendAmountRow Component', function () {
     propsMethodSpies.updateSendAmount.resetHistory()
     propsMethodSpies.updateSendAmountError.resetHistory()
     SendAmountRow.prototype.validateAmount.resetHistory()
-    SendAmountRow.prototype.handleAmountChange.resetHistory()
+    SendAmountRow.prototype.updateAmount.resetHistory()
   })
 
   describe('validateAmount', () => {
@@ -71,11 +71,11 @@ describe('SendAmountRow Component', function () {
 
   })
 
-  describe('handleAmountChange', () => {
+  describe('updateAmount', () => {
 
     it('should call setMaxModeTo', () => {
       assert.equal(propsMethodSpies.setMaxModeTo.callCount, 0)
-      instance.handleAmountChange('someAmount')
+      instance.updateAmount('someAmount')
       assert.equal(propsMethodSpies.setMaxModeTo.callCount, 1)
       assert.deepEqual(
         propsMethodSpies.setMaxModeTo.getCall(0).args,
@@ -83,19 +83,9 @@ describe('SendAmountRow Component', function () {
       )
     })
 
-    it('should call this.validateAmount', () => {
-      assert.equal(SendAmountRow.prototype.validateAmount.callCount, 0)
-      instance.handleAmountChange('someAmount')
-      assert.equal(SendAmountRow.prototype.validateAmount.callCount, 1)
-      assert.deepEqual(
-        propsMethodSpies.updateSendAmount.getCall(0).args,
-        ['someAmount']
-      )
-    })
-
     it('should call updateSendAmount', () => {
       assert.equal(propsMethodSpies.updateSendAmount.callCount, 0)
-      instance.handleAmountChange('someAmount')
+      instance.updateAmount('someAmount')
       assert.equal(propsMethodSpies.updateSendAmount.callCount, 1)
       assert.deepEqual(
         propsMethodSpies.updateSendAmount.getCall(0).args,
@@ -136,7 +126,8 @@ describe('SendAmountRow Component', function () {
       const {
         conversionRate,
         convertedCurrency,
-        handleChange,
+        onBlur,
+        onChange,
         inError,
         primaryCurrency,
         selectedToken,
@@ -148,11 +139,18 @@ describe('SendAmountRow Component', function () {
       assert.equal(primaryCurrency, 'mockPrimaryCurrency')
       assert.deepEqual(selectedToken, { address: 'mockTokenAddress' })
       assert.equal(value, 'mockAmount')
-      assert.equal(SendAmountRow.prototype.handleAmountChange.callCount, 0)
-      handleChange('mockNewAmount')
-      assert.equal(SendAmountRow.prototype.handleAmountChange.callCount, 1)
+      assert.equal(SendAmountRow.prototype.updateAmount.callCount, 0)
+      onBlur('mockNewAmount')
+      assert.equal(SendAmountRow.prototype.updateAmount.callCount, 1)
+      assert.deepEqual(
+        SendAmountRow.prototype.updateAmount.getCall(0).args,
+        ['mockNewAmount']
+      )
+      assert.equal(SendAmountRow.prototype.validateAmount.callCount, 0)
+      onChange('mockNewAmount')
+      assert.equal(SendAmountRow.prototype.validateAmount.callCount, 1)
       assert.deepEqual(
-        SendAmountRow.prototype.handleAmountChange.getCall(0).args,
+        SendAmountRow.prototype.validateAmount.getCall(0).args,
         ['mockNewAmount']
       )
     })
diff --git a/ui/app/css/itcss/components/currency-display.scss b/ui/app/css/itcss/components/currency-display.scss
index 36d843c79..3560b0b0c 100644
--- a/ui/app/css/itcss/components/currency-display.scss
+++ b/ui/app/css/itcss/components/currency-display.scss
@@ -47,10 +47,32 @@
   &__input-wrapper {
     position: relative;
     display: flex;
+
+    input[type="number"]::-webkit-inner-spin-button {
+      -webkit-appearance: none;
+      display: none;
+    }
+
+    input[type="number"]:hover::-webkit-inner-spin-button {
+      -webkit-appearance: none;
+      display: none;
+    }
   }
 
   &__currency-symbol {
     margin-top: 1px;
     color: $scorpion;
   }
+
+  .react-numeric-input {
+    input[type="number"]::-webkit-inner-spin-button {
+      -webkit-appearance: none;
+      display: none;
+    }
+
+    input[type="number"]:hover::-webkit-inner-spin-button {
+      -webkit-appearance: none;
+      display: none;
+    }
+  }
 }
\ No newline at end of file