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const Component = require('react').Component
const h = require('react-hyperscript')
const inherits = require('util').inherits
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)
}
function removeLeadingZeroes (str) {
return str.replace(/^0*(?=\d)/, '')
}
InputNumber.prototype.setValue = function (newValue) {
newValue = removeLeadingZeroes(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 } = this.props
return h('div.customize-gas-input-wrapper', {}, [
h('input', {
className: 'customize-gas-input',
value,
placeholder,
type: 'number',
onChange: e => {
this.setValue(e.target.value)
},
min: 0,
}),
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, { toNumericBase: 'dec' })),
}),
h('i.fa.fa-angle-down', {
style: { cursor: 'pointer' },
onClick: () => this.setValue(subtractCurrencies(value, step, { toNumericBase: 'dec' })),
}),
]),
])
}
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