1 files changed, 73 insertions, 0 deletions
diff --git a/ui/app/components/input-number.js b/ui/app/components/input-number.js
new file mode 100644
index 000000000..fd8c5c309
--- /dev/null
+++ b/ui/app/components/input-number.js
@@ -0,0 +1,73 @@
+const Component = require('react').Component
+const h = require('react-hyperscript')
+const inherits = require('util').inherits
+const CurrencyInput = require('./currency-input')
+const {
+  addCurrencies,
+  conversionGTE,
+  conversionLTE,
+  subtractCurrencies,
+} = require('../conversion-util')
+
+module.exports = InputNumber
+
+inherits(InputNumber, Component)
+function InputNumber () {
+  Component.call(this)
+
+  this.setValue = this.setValue.bind(this)
+}
+
+function isValidInput (text) {
+  const re = /^([1-9]\d*|0)(\.|\.\d*)?$/
+  return re.test(text)
+}
+
+InputNumber.prototype.setValue = function (newValue) {
+  if (newValue && !isValidInput(newValue)) return
+  const { fixed, min = -1, max = Infinity, onChange } = this.props
+
+  newValue = fixed ? newValue.toFixed(4) : newValue
+
+  const newValueGreaterThanMin = conversionGTE(
+    { value: newValue || '0', fromNumericBase: 'dec' },
+    { value: min, fromNumericBase: 'hex' },
+  )
+
+  const newValueLessThanMax = conversionLTE(
+    { value: newValue || '0', fromNumericBase: 'dec' },
+    { value: max, fromNumericBase: 'hex' },
+  )
+  if (newValueGreaterThanMin && newValueLessThanMax) {
+    onChange(newValue)
+  } else if (!newValueGreaterThanMin) {
+    onChange(min)
+  } else if (!newValueLessThanMax) {
+    onChange(max)
+  }
+}
+
+InputNumber.prototype.render = function () {
+  const { unitLabel, step = 1, placeholder, value = 0 } = this.props
+
+  return h('div.customize-gas-input-wrapper', {}, [
+    h(CurrencyInput, {
+      className: 'customize-gas-input',
+      value,
+      placeholder,
+      onInputChange: newValue => {
+        this.setValue(newValue)
+      },
+    }),
+    h('span.gas-tooltip-input-detail', {}, [unitLabel]),
+    h('div.gas-tooltip-input-arrows', {}, [
+      h('i.fa.fa-angle-up', {
+        onClick: () => this.setValue(addCurrencies(value, step)),
+      }),
+      h('i.fa.fa-angle-down', {
+        style: { cursor: 'pointer' },
+        onClick: () => this.setValue(subtractCurrencies(value, step)),
+      }),
+    ]),
+  ])
+}