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-rw-r--r--responsive-ui/app/components/hex-as-decimal-input.js154
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diff --git a/responsive-ui/app/components/hex-as-decimal-input.js b/responsive-ui/app/components/hex-as-decimal-input.js
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+const Component = require('react').Component
+const h = require('react-hyperscript')
+const inherits = require('util').inherits
+const ethUtil = require('ethereumjs-util')
+const BN = ethUtil.BN
+const extend = require('xtend')
+
+module.exports = HexAsDecimalInput
+
+inherits(HexAsDecimalInput, Component)
+function HexAsDecimalInput () {
+ this.state = { invalid: null }
+ Component.call(this)
+}
+
+/* Hex as Decimal Input
+ *
+ * A component for allowing easy, decimal editing
+ * of a passed in hex string value.
+ *
+ * On change, calls back its `onChange` function parameter
+ * and passes it an updated hex string.
+ */
+
+HexAsDecimalInput.prototype.render = function () {
+ const props = this.props
+ const state = this.state
+
+ const { value, onChange, min, max } = props
+
+ const toEth = props.toEth
+ const suffix = props.suffix
+ const decimalValue = decimalize(value, toEth)
+ const style = props.style
+
+ return (
+ h('.flex-column', [
+ h('.flex-row', {
+ style: {
+ alignItems: 'flex-end',
+ lineHeight: '13px',
+ fontFamily: 'Montserrat Light',
+ textRendering: 'geometricPrecision',
+ },
+ }, [
+ h('input.hex-input', {
+ type: 'number',
+ required: true,
+ min: min,
+ max: max,
+ style: extend({
+ display: 'block',
+ textAlign: 'right',
+ backgroundColor: 'transparent',
+ border: '1px solid #bdbdbd',
+
+ }, style),
+ value: parseInt(decimalValue),
+ onBlur: (event) => {
+ this.updateValidity(event)
+ },
+ onChange: (event) => {
+ this.updateValidity(event)
+ const hexString = (event.target.value === '') ? '' : hexify(event.target.value)
+ onChange(hexString)
+ },
+ onInvalid: (event) => {
+ const msg = this.constructWarning()
+ if (msg === state.invalid) {
+ return
+ }
+ this.setState({ invalid: msg })
+ event.preventDefault()
+ return false
+ },
+ }),
+ h('div', {
+ style: {
+ color: ' #AEAEAE',
+ fontSize: '12px',
+ marginLeft: '5px',
+ marginRight: '6px',
+ width: '20px',
+ },
+ }, suffix),
+ ]),
+
+ state.invalid ? h('span.error', {
+ style: {
+ position: 'absolute',
+ right: '0px',
+ textAlign: 'right',
+ transform: 'translateY(26px)',
+ padding: '3px',
+ background: 'rgba(255,255,255,0.85)',
+ zIndex: '1',
+ textTransform: 'capitalize',
+ border: '2px solid #E20202',
+ },
+ }, state.invalid) : null,
+ ])
+ )
+}
+
+HexAsDecimalInput.prototype.setValid = function (message) {
+ this.setState({ invalid: null })
+}
+
+HexAsDecimalInput.prototype.updateValidity = function (event) {
+ const target = event.target
+ const value = this.props.value
+ const newValue = target.value
+
+ if (value === newValue) {
+ return
+ }
+
+ const valid = target.checkValidity()
+ if (valid) {
+ this.setState({ invalid: null })
+ }
+}
+
+HexAsDecimalInput.prototype.constructWarning = function () {
+ const { name, min, max } = this.props
+ let message = name ? name + ' ' : ''
+
+ if (min && max) {
+ message += `must be greater than or equal to ${min} and less than or equal to ${max}.`
+ } else if (min) {
+ message += `must be greater than or equal to ${min}.`
+ } else if (max) {
+ message += `must be less than or equal to ${max}.`
+ } else {
+ message += 'Invalid input.'
+ }
+
+ return message
+}
+
+function hexify (decimalString) {
+ const hexBN = new BN(parseInt(decimalString), 10)
+ return '0x' + hexBN.toString('hex')
+}
+
+function decimalize (input, toEth) {
+ if (input === '') {
+ return ''
+ } else {
+ const strippedInput = ethUtil.stripHexPrefix(input)
+ const inputBN = new BN(strippedInput, 'hex')
+ return inputBN.toString(10)
+ }
+}