Collaborative editing (#1660)

app/scenes/Document/Shared.js

@@ -0,0 +1,64 @@
+// @flow
+import * as React from "react";
+import { type Match } from "react-router-dom";
+import { useTheme } from "styled-components";
+import Error404 from "scenes/Error404";
+import ErrorOffline from "scenes/ErrorOffline";
+import useStores from "../../hooks/useStores";
+import Document from "./components/Document";
+import Loading from "./components/Loading";
+import { type LocationWithState } from "types";
+import { OfflineError } from "utils/errors";
+
+const EMPTY_OBJECT = {};
+
+type Props = {|
+  match: Match,
+  location: LocationWithState,
+|};
+
+export default function SharedDocumentScene(props: Props) {
+  const theme = useTheme();
+  const [response, setResponse] = React.useState();
+  const [error, setError] = React.useState<?Error>();
+  const { documents } = useStores();
+  const { shareId, documentSlug } = props.match.params;
+
+  // ensure the wider page color always matches the theme
+  React.useEffect(() => {
+    window.document.body.style.background = theme.background;
+  }, [theme]);
+
+  React.useEffect(() => {
+    async function fetchData() {
+      try {
+        const response = await documents.fetch(documentSlug, {
+          shareId,
+        });
+        setResponse(response);
+      } catch (err) {
+        setError(err);
+      }
+    }
+    fetchData();
+  }, [documents, documentSlug, shareId]);
+
+  if (error) {
+    return error instanceof OfflineError ? <ErrorOffline /> : <Error404 />;
+  }
+
+  if (!response) {
+    return <Loading location={props.location} />;
+  }
+
+  return (
+    <Document
+      abilities={EMPTY_OBJECT}
+      document={response.document}
+      sharedTree={response.sharedTree}
+      location={props.location}
+      shareId={shareId}
+      readOnly
+    />
+  );
+}