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path: root/ui/app/components/loading-network-screen/loading-network-screen.component.js
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import React, { PureComponent } from 'react'
import PropTypes from 'prop-types'
import Spinner from '../spinner'
import Button from '../button'

export default class LoadingNetworkScreen extends PureComponent {
  state = {
    showErrorScreen: false,
  }

  static contextTypes = {
    t: PropTypes.func,
  }

  static propTypes = {
    loadingMessage: PropTypes.string,
    cancelTime: PropTypes.number,
    provider: PropTypes.oneOfType([PropTypes.string, PropTypes.object]),
    providerId: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
    showNetworkDropdown: PropTypes.func,
    setProviderArgs: PropTypes.array,
    lastSelectedProvider: PropTypes.oneOfType([PropTypes.string, PropTypes.object]),
    setProviderType: PropTypes.func,
    isLoadingNetwork: PropTypes.bool,
  }

  componentDidMount = () => {
    this.cancelCallTimeout = setTimeout(this.cancelCall, this.props.cancelTime || 15000)
  }

  getConnectingLabel = function (loadingMessage) {
    if (loadingMessage) {
      return loadingMessage
    }
    const { provider, providerId } = this.props
    const providerName = provider.type

    let name

    if (providerName === 'mainnet') {
      name = this.context.t('connectingToMainnet')
    } else if (providerName === 'ropsten') {
      name = this.context.t('connectingToRopsten')
    } else if (providerName === 'kovan') {
      name = this.context.t('connectingToKovan')
    } else if (providerName === 'rinkeby') {
      name = this.context.t('connectingToRinkeby')
    } else {
      name = this.context.t('connectingTo', [providerId])
    }

    return name
  }

  renderMessage = () => {
    return <span>{ this.getConnectingLabel(this.props.loadingMessage) }</span>
  }

  renderLoadingScreenContent = () => {
    return <div className="loading-overlay__screen-content">
      <Spinner color="#F7C06C" />
      {this.renderMessage()}
    </div>
  }

  renderErrorScreenContent = () => {
    const { showNetworkDropdown, setProviderArgs, setProviderType } = this.props

    return <div className="loading-overlay__error-screen">
      <span className="loading-overlay__emoji">&#128542;</span>
      <span>{ this.context.t('somethingWentWrong') }</span>
      <div className="loading-overlay__error-buttons">
        <Button
          type="default"
          onClick={() => {
            window.clearTimeout(this.cancelCallTimeout)
            showNetworkDropdown()
          }}
        >
          { this.context.t('switchNetworks') }
        </Button>

        <Button
          type="primary"
          onClick={() => {
            this.setState({ showErrorScreen: false })
            setProviderType(...setProviderArgs)
            window.clearTimeout(this.cancelCallTimeout)
            this.cancelCallTimeout = setTimeout(this.cancelCall, this.props.cancelTime || 15000)
          }}
        >
          { this.context.t('tryAgain') }
        </Button>
      </div>
    </div>
  }

  cancelCall = () => {
    const { isLoadingNetwork } = this.props

    if (isLoadingNetwork) {
      this.setState({ showErrorScreen: true })
    }
  }

  componentDidUpdate = (prevProps) => {
    const { provider } = this.props
    const { provider: prevProvider } = prevProps
    if (provider.type !== prevProvider.type) {
      window.clearTimeout(this.cancelCallTimeout)
      this.setState({ showErrorScreen: false })
      this.cancelCallTimeout = setTimeout(this.cancelCall, this.props.cancelTime || 15000)
    }
  }

  componentWillUnmount = () => {
    window.clearTimeout(this.cancelCallTimeout)
  }

  render () {
    const { lastSelectedProvider, setProviderType } = this.props

    return (
      <div className="loading-overlay">
        <div
          className="page-container__header-close"
          onClick={() => setProviderType(lastSelectedProvider || 'ropsten')}
        />
        <div className="loading-overlay__container">
          { this.state.showErrorScreen
            ? this.renderErrorScreenContent()
            : this.renderLoadingScreenContent()
          }
        </div>
      </div>
    )
  }
}