Error boundaries for panels

We already use error boundaries in more tightly scoped parts of auspice
(e.g. surrounding the legend), presumably in response to specific
bugs/crashes observed therein. This adds a panel-specific error boundary
which surrounds each panel.

src/components/errorBoundaries/panelErrorBoundary.tsx

@@ -0,0 +1,80 @@
+import React from "react";
+import styled from "styled-components";
+
+const Background = styled.div`
+  background: repeating-linear-gradient(
+    45deg,
+    transparent,
+    transparent 20px,
+    #f4d2ff 20px,
+    #f4d2ff 21px
+  );
+  margin: 10px 10px;
+  padding: 10px 10px;
+  border: 1px solid #f4d2ff;
+  display: inline-block;
+  position: relative;
+`;
+
+interface Props {
+  width: number;
+  height: number;
+  name: string;
+}
+interface State {
+  hasError: boolean;
+  errorMessage: string;
+}
+
+class PanelErrorBoundary extends React.Component<Props, State> {
+  constructor(props) {
+    super(props);
+    this.state = { hasError: false, errorMessage: ''};
+  }
+  static getDerivedStateFromError(error) {
+    // Update state so the next render will show the fallback UI.
+    return {
+      hasError: true,
+      errorMessage: error instanceof Error ? error.message : "Unknown error (thrown value was not an instance of Error)",
+    };
+  }
+  override componentDidCatch(error, info) {
+    // You can also log the error to an error reporting service
+    console.error(error);
+    console.error(info);
+  }
+
+  override render() {
+    if (!this.state.hasError) return this.props.children;
+
+    /**
+     * We could add something like
+     * <button onClick={() => {this.setState({hasError: false})}}>You can try clicking here to re-render the panel</button>
+     * but it risks rendering an incorrect state so I'd prefer not to
+     */
+
+    return (
+      <Background style={{width: this.props.width, height: this.props.height}}>
+        <h1 style={{fontSize: '3rem'}}>{`Error! Something's gone wrong within the ${this.props.name} panel`}</h1>
+
+        <p style={{fontSize: '1.8rem'}}>
+          {`Error message: "${this.state.errorMessage}"`}
+        </p>
+
+        <p style={{fontSize: '1.8rem'}}>
+          {'Please consider making a bug report either on '}
+          <a href="https://github.com/nextstrain/auspice/issues/new" target="_blank" rel="noreferrer noopener">GitHub</a>
+          {' or via '}
+          <a href="mailto:[email protected]" target="_blank" rel="noreferrer noopener">email</a>.
+          (The more information you can include the better - things such as steps to reproduce the bug, your browser version, the version of Auspice etc are incredibly helpful.)
+        </p>
+        <p style={{fontSize: '1.8rem'}}>
+          In the meantime you could try refreshing the page which may fix things in the short term.
+        </p>
+
+      </Background>
+    );
+  }
+}
+
+export default PanelErrorBoundary;

src/components/main/index.js

@@ -23,6 +23,7 @@ import ErrorBoundary from "../../util/errorBoundary";
 import Spinner, { PanelSpinner } from "../framework/spinner";
 import MainDisplayMarkdown from "../narrative/MainDisplayMarkdown";
 import MobileNarrativeDisplay from "../narrative/MobileNarrativeDisplay";
+import PanelErrorBoundary from "../errorBoundaries/panelErrorBoundary";
 
 const Entropy = lazy(() => import("../entropy"));
 const Frequencies = lazy(() => import("../frequencies"));
@@ -155,11 +156,17 @@ class Main extends React.Component {
           }
           {this.props.displayNarrative || this.props.showOnlyPanels ? null : <Info width={calcUsableWidth(availableWidth, 1)} />}
           {this.props.panelsToDisplay.includes("tree") ?
-            <Tree
+            <PanelErrorBoundary
               width={this.inGrid() ? grid.width : full.width}
               height={this.inGrid() ? grid.height : full.height}
-              key={keyName}
-            /> :
+              name="tree"
+            >
+              <Tree
+                width={this.inGrid() ? grid.width : full.width}
+                height={this.inGrid() ? grid.height : full.height}
+                key={keyName}
+              />
+            </PanelErrorBoundary> :
             null
           }
           {this.props.panelsToDisplay.includes("measurements") ?
@@ -172,34 +179,50 @@ class Main extends React.Component {
                 />
               }
             >
-              <Measurements
+              <PanelErrorBoundary
                 width={this.inGrid() ? grid.width : full.width}
                 height={this.inGrid() ? grid.height : full.height}
-                key={keyName+"_measurements"}
-                showLegend={this.shouldShowMeasurementsLegend()}
-              />
+                name="measurements"
+              >
+                <Measurements
+                  width={this.inGrid() ? grid.width : full.width}
+                  height={this.inGrid() ? grid.height : full.height}
+                  key={keyName+"_measurements"}
+                  showLegend={this.shouldShowMeasurementsLegend()}
+                />
+              </PanelErrorBoundary>
             </Suspense> :
             null
           }
           {this.props.panelsToDisplay.includes("map") ?
-            <Map
+            <PanelErrorBoundary
               width={this.shouldMapBeInGrid() ? grid.width : full.width}
               height={this.shouldMapBeInGrid() ? grid.height : full.height}
-              key={keyName+"_map"}
-              justGotNewDatasetRenderNewMap={false}
-              legend={this.shouldShowMapLegend()}
-            /> :
+              name="map"
+            >
+              <Map
+                width={this.shouldMapBeInGrid() ? grid.width : full.width}
+                height={this.shouldMapBeInGrid() ? grid.height : full.height}
+                key={keyName+"_map"}
+                justGotNewDatasetRenderNewMap={false}
+                legend={this.shouldShowMapLegend()}
+              />
+            </PanelErrorBoundary> :
             null
           }
           {this.props.panelsToDisplay.includes("entropy") ?
             (<Suspense fallback={null}>
-              <Entropy width={chartEntropy.width} height={chartEntropy.height} key={keyName+"_entropy"}/>
+              <PanelErrorBoundary width={chartEntropy.width} height={chartEntropy.height} name="entropy">
+                <Entropy width={chartEntropy.width} height={chartEntropy.height} key={keyName+"_entropy"}/>
+              </PanelErrorBoundary>
             </Suspense>) :
             null
           }
           {this.props.panelsToDisplay.includes("frequencies") && this.props.frequenciesLoaded ?
             (<Suspense fallback={null}>
-              <Frequencies width={chartFrequencies.width} height={chartFrequencies.height} key={keyName+"_frequencies"}/>
+              <PanelErrorBoundary width={chartFrequencies.width} height={chartFrequencies.height} name="frequencies">
+                <Frequencies width={chartFrequencies.width} height={chartFrequencies.height} key={keyName+"_frequencies"}/>
+              </PanelErrorBoundary>
             </Suspense>) :
             null
           }