registration: redesign email verification page (#8554)

src/components/structures/auth/header/AuthHeaderDisplay.tsx

@@ -0,0 +1,41 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React, { Fragment, PropsWithChildren, ReactNode, useContext } from "react";
+
+import { AuthHeaderContext } from "./AuthHeaderContext";
+
+interface Props {
+    title: ReactNode;
+    icon?: ReactNode;
+    serverPicker: ReactNode;
+}
+
+export function AuthHeaderDisplay({ title, icon, serverPicker, children }: PropsWithChildren<Props>) {
+    const context = useContext(AuthHeaderContext);
+    if (!context) {
+        return null;
+    }
+    const current = context.state.length ? context.state[0] : null;
+    return (
+        <Fragment>
+            { current?.icon ?? icon }
+            <h2>{ current?.title ?? title }</h2>
+            { children }
+            { current?.hideServerPicker !== true && serverPicker }
+        </Fragment>
+    );
+}