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const Component = require('react').Component
const h = require('react-hyperscript')
const inherits = require('util').inherits
const extend = require('xtend')
const debounce = require('debounce')
const ENS = require('ethereum-ens')
const ensRE = /.+\.eth$/
const networkResolvers = {
'3': '112234455c3a32fd11230c42e7bccd4a84e02010',
}
module.exports = EnsInput
inherits(EnsInput, Component)
function EnsInput () {
Component.call(this)
}
EnsInput.prototype.render = function () {
const props = this.props
const opts = extend(props, {
onChange: () => {
const network = this.props.network
let resolverAddress = networkResolvers[network]
if (!resolverAddress) return
const recipient = document.querySelector('input[name="address"]').value
if (recipient.match(ensRE) === null) {
console.dir(recipient)
return this.setState({
loadingEns: false,
})
}
this.setState({
loadingEns: true,
})
this.checkName()
},
})
return h('div', {
style: { width: '100%' },
}, [
h('input.large-input', opts),
this.ensIcon(),
])
}
EnsInput.prototype.componentDidMount = function () {
const network = this.props.network
let resolverAddress = networkResolvers[network]
if (resolverAddress) {
this.ens = new ENS(web3, resolverAddress)
this.checkName = debounce(this.lookupEnsName.bind(this), 200)
}
}
EnsInput.prototype.lookupEnsName = function () {
if (!this.ens) {
return this.setState({
loadingEns: false,
ensFailure: true,
hoverText: 'ENS is not supported on your current network.',
})
}
const recipient = document.querySelector('input[name="address"]').value
log.info(`ENS attempting to resolve name: ${recipient}`)
this.ens.resolver(recipient).addr()
.then((address) => {
this.setState({
loadingEns: false,
ensResolution: address,
hoverText: address,
})
})
.catch((reason) => {
return this.setState({
loadingEns: false,
ensFailure: true,
hoverText: reason.message,
})
})
}
EnsInput.prototype.componentDidUpdate = function () {
const state = this.state || {}
const { ensResolution } = state
if (ensResolution && this.props.onChange) {
this.props.onChange(ensResolution)
}
}
EnsInput.prototype.ensIcon = function (recipient) {
const { hoverText } = this.state || {}
return h('span', {
title: hoverText,
style: {
position: 'absolute',
padding: '9px',
transform: 'translatex(-40px)',
},
}, this.ensIconContents(recipient))
}
EnsInput.prototype.ensIconContents = function (recipient) {
const { loadingEns, ensFailure, ensResolution } = this.state || {}
if (loadingEns) {
return h('img', {
src: 'images/loading.svg',
style: {
width: '30px',
height: '30px',
},
})
}
if (ensFailure) {
return h('i.fa.fa-warning.fa-lg.warning')
}
if (ensResolution) {
return h('i.fa.fa-check-circle.fa-lg', {
style: { color: 'green' },
})
}
}
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