Add error boundary

2 files changed, 100 insertions, 6 deletions

diff --git a/gui/src/renderer/components/ErrorBoundary.tsx b/gui/src/renderer/components/ErrorBoundary.tsx
new file mode 100644
index 0000000000..07bc839bce
--- /dev/null
+++ b/gui/src/renderer/components/ErrorBoundary.tsx
@@ -0,0 +1,93 @@
+import log from 'electron-log';
+import * as React from 'react';
+import { Component, Styles, Text, View } from 'reactxp';
+import { colors, links } from '../../config.json';
+import { messages } from '../../shared/gettext';
+import PlatformWindowContainer from '../containers/PlatformWindowContainer';
+import ImageView from './ImageView';
+import { Container, Layout } from './Layout';
+
+interface IProps {
+  children?: React.ReactNode;
+}
+
+interface IState {
+  hasError: boolean;
+}
+
+const styles = {
+  container: Styles.createViewStyle({
+    flex: 1,
+    flexDirection: 'column',
+    alignItems: 'center',
+    justifyContent: 'center',
+    backgroundColor: colors.blue,
+  }),
+  logo: Styles.createViewStyle({
+    marginBottom: 4,
+  }),
+  title: Styles.createTextStyle({
+    fontFamily: 'DINPro',
+    fontSize: 24,
+    fontWeight: '900',
+    lineHeight: 30,
+    letterSpacing: -0.5,
+    color: colors.white60,
+    marginBottom: 4,
+  }),
+  subtitle: Styles.createTextStyle({
+    fontFamily: 'Open Sans',
+    fontSize: 14,
+    lineHeight: 20,
+    color: colors.white40,
+    marginHorizontal: 20,
+    textAlign: 'center',
+  }),
+  email: Styles.createTextStyle({
+    fontWeight: '900',
+  }),
+};
+
+export default class ErrorBoundary extends Component<IProps, IState> {
+  public state = { hasError: false };
+
+  public componentDidCatch(error: Error, info: React.ErrorInfo) {
+    this.setState({ hasError: true });
+
+    log.error(
+      `The error boundary caught an error: ${error.message}\nError stack: ${error.stack ||
+        'Not available'}\nComponent stack: ${info.componentStack}`,
+    );
+  }
+
+  public render() {
+    if (this.state.hasError) {
+      const reachBackMessage: React.ReactNodeArray =
+        // TRANSLATORS: The message displayed to the user in case of critical error in the GUI
+        // TRANSLATORS: Available placeholders:
+        // TRANSLATORS: %(email)s - support email
+        messages
+          .pgettext('error-boundary-view', 'Something went wrong. Please contact us at %(email)s')
+          .split('%(email)s', 2);
+      reachBackMessage.splice(1, 0, <Text style={styles.email}>{links.supportEmail}</Text>);
+
+      return (
+        <PlatformWindowContainer>
+          <Layout>
+            <Container>
+              <View style={styles.container}>
+                <ImageView height={120} width={120} source="logo-icon" style={styles.logo} />
+                <Text style={styles.title}>
+                  {messages.pgettext('error-boundary-view', 'MULLVAD VPN')}
+                </Text>
+                <Text style={styles.subtitle}>{reachBackMessage}</Text>
+              </View>
+            </Container>
+          </Layout>
+        </PlatformWindowContainer>
+      );
+    } else {
+      return this.props.children;
+    }
+  }
+}
diff --git a/gui/src/renderer/components/Support.tsx b/gui/src/renderer/components/Support.tsx
index 439b229dfc..fd9241bbf8 100644
--- a/gui/src/renderer/components/Support.tsx
+++ b/gui/src/renderer/components/Support.tsx
@@ -293,12 +293,13 @@ export default class Support extends Component<ISupportProps, ISupportState> {
   }
 
   private renderSent() {
-    // TRANSLATORS: The message displayed to the user after submitting the problem report, given that the user left his or her email for us to reach back.
-    // TRANSLATORS: Available placeholders:
-    // TRANSLATORS: %(email)s
-    const reachBackMessage: React.ReactNodeArray = messages
-      .pgettext('support-view', 'If needed we will contact you on %(email)s')
-      .split('%(email)s', 2);
+    const reachBackMessage: React.ReactNodeArray =
+      // TRANSLATORS: The message displayed to the user after submitting the problem report, given that the user left his or her email for us to reach back.
+      // TRANSLATORS: Available placeholders:
+      // TRANSLATORS: %(email)s
+      messages
+        .pgettext('support-view', 'If needed we will contact you on %(email)s')
+        .split('%(email)s', 2);
     reachBackMessage.splice(
       1,
       0,