1 files changed, 138 insertions, 0 deletions
diff --git a/ui/app/components/app/loading-network-screen/loading-network-screen.component.js b/ui/app/components/app/loading-network-screen/loading-network-screen.component.js
new file mode 100644
index 000000000..348a997c8
--- /dev/null
+++ b/ui/app/components/app/loading-network-screen/loading-network-screen.component.js
@@ -0,0 +1,138 @@
+import React, { PureComponent } from 'react'
+import PropTypes from 'prop-types'
+import Spinner from '../../ui/spinner'
+import Button from '../../ui/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>
+    )
+  }
+}