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import React, { Component } from 'react'
import PropTypes from 'prop-types'
import c from 'classnames'
import { isValidENSAddress, isValidAddress } from '../../../../helpers/utils/util'
import {ellipsify} from '../../send.utils'
import debounce from 'debounce'
import copyToClipboard from 'copy-to-clipboard/index'
import ENS from 'ethjs-ens'
import networkMap from 'ethjs-ens/lib/network-map.json'
import log from 'loglevel'
// Local Constants
const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000'
const ZERO_X_ERROR_ADDRESS = '0x'
export default class EnsInput extends Component {
static contextTypes = {
t: PropTypes.func,
}
static propTypes = {
className: PropTypes.string,
network: PropTypes.string,
selectedAddress: PropTypes.string,
selectedName: PropTypes.string,
onChange: PropTypes.func,
updateSendTo: PropTypes.func,
updateEnsResolution: PropTypes.func,
scanQrCode: PropTypes.func,
updateEnsResolutionError: PropTypes.func,
addressBook: PropTypes.array,
onPaste: PropTypes.func,
onReset: PropTypes.func,
}
state = {
recipient: null,
input: '',
toError: null,
toWarning: null,
}
componentDidMount () {
const network = this.props.network
const networkHasEnsSupport = getNetworkEnsSupport(network)
this.setState({ ensResolution: ZERO_ADDRESS })
if (networkHasEnsSupport) {
const provider = global.ethereumProvider
this.ens = new ENS({ provider, network })
this.checkName = debounce(this.lookupEnsName, 200)
}
}
// If an address is sent without a nickname, meaning not from ENS or from
// the user's own accounts, a default of a one-space string is used.
componentDidUpdate (prevProps) {
const {
input,
} = this.state
const {
network,
} = this.props
if (prevProps.network !== network) {
const provider = global.ethereumProvider
this.ens = new ENS({ provider, network })
this.onChange({ target: { value: input } })
}
}
resetInput = () => {
const { updateEnsResolution, updateEnsResolutionError, onReset } = this.props
this.onChange({ target: { value: '' } })
onReset()
updateEnsResolution('')
updateEnsResolutionError('')
}
lookupEnsName = (recipient) => {
recipient = recipient.trim()
log.info(`ENS attempting to resolve name: ${recipient}`)
this.ens.lookup(recipient)
.then((address) => {
if (address === ZERO_ADDRESS) throw new Error(this.context.t('noAddressForName'))
if (address === ZERO_X_ERROR_ADDRESS) throw new Error(this.context.t('ensRegistrationError'))
this.props.updateEnsResolution(address)
})
.catch((reason) => {
if (isValidENSAddress(recipient) && reason.message === 'ENS name not defined.') {
this.props.updateEnsResolutionError(this.context.t('ensNotFoundOnCurrentNetwork'))
} else {
log.error(reason)
this.props.updateEnsResolutionError(reason.message)
}
})
}
onPaste = event => {
event.clipboardData.items[0].getAsString(text => {
if (isValidAddress(text)) {
this.props.onPaste(text)
}
})
}
onChange = e => {
const { network, onChange, updateEnsResolution, updateEnsResolutionError } = this.props
const input = e.target.value
const networkHasEnsSupport = getNetworkEnsSupport(network)
this.setState({ input }, () => onChange(input))
// Empty ENS state if input is empty
// maybe scan ENS
if (!input || isValidAddress(input) || !networkHasEnsSupport) {
updateEnsResolution('')
updateEnsResolutionError(!networkHasEnsSupport ? 'Network does not support ENS' : '')
return
}
if (isValidENSAddress(input)) {
this.lookupEnsName(input)
} else {
updateEnsResolution('')
updateEnsResolutionError('')
}
}
render () {
const { t } = this.context
const { className, selectedAddress } = this.props
const { input } = this.state
if (selectedAddress) {
return this.renderSelected()
}
return (
<div className={c('ens-input', className)}>
<div
className={c('ens-input__wrapper', {
'ens-input__wrapper__status-icon--error': false,
'ens-input__wrapper__status-icon--valid': false,
})}
>
<div className="ens-input__wrapper__status-icon" />
<input
className="ens-input__wrapper__input"
type="text"
placeholder={t('recipientAddressPlaceholder')}
onChange={this.onChange}
onPaste={this.onPaste}
value={selectedAddress || input}
autoFocus
/>
<div
className={c('ens-input__wrapper__action-icon', {
'ens-input__wrapper__action-icon--erase': input,
'ens-input__wrapper__action-icon--qrcode': !input,
})}
onClick={() => {
if (input) {
this.resetInput()
} else {
this.props.scanQrCode()
}
}}
/>
</div>
</div>
)
}
renderSelected () {
const { t } = this.context
const { className, selectedAddress, selectedName, addressBook } = this.props
const contact = addressBook.filter(item => item.address === selectedAddress)[0] || {}
const name = contact.name || selectedName
return (
<div className={c('ens-input', className)}>
<div
className="ens-input__wrapper ens-input__wrapper--valid"
>
<div className="ens-input__wrapper__status-icon ens-input__wrapper__status-icon--valid" />
<div
className="ens-input__wrapper__input ens-input__wrapper__input--selected"
placeholder={t('recipientAddress')}
onChange={this.onChange}
>
<div className="ens-input__selected-input__title">
{name || ellipsify(selectedAddress)}
</div>
{ name && <div className="ens-input__selected-input__subtitle">{selectedAddress}</div> }
</div>
<div
className="ens-input__wrapper__action-icon ens-input__wrapper__action-icon--erase"
onClick={this.resetInput}
/>
</div>
</div>
)
}
ensIcon (recipient) {
const { hoverText } = this.state
return (
<span
className="#ensIcon"
title={hoverText}
style={{
position: 'absolute',
top: '16px',
left: '-25px',
}}
>
{ this.ensIconContents(recipient) }
</span>
)
}
ensIconContents () {
const { loadingEns, ensFailure, ensResolution, toError } = this.state || { ensResolution: ZERO_ADDRESS }
if (toError) return
if (loadingEns) {
return (
<img
src="images/loading.svg"
style={{
width: '30px',
height: '30px',
transform: 'translateY(-6px)',
}}
/>
)
}
if (ensFailure) {
return <i className="fa fa-warning fa-lg warning'" />
}
if (ensResolution && (ensResolution !== ZERO_ADDRESS)) {
return (
<i
className="fa fa-check-circle fa-lg cursor-pointer"
style={{ color: 'green' }}
onClick={event => {
event.preventDefault()
event.stopPropagation()
copyToClipboard(ensResolution)
}}
/>
)
}
}
}
function getNetworkEnsSupport (network) {
return Boolean(networkMap[network])
}
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