New User Onboarding Task List (#9083)

* Improve type of AccessibleButton to accurately represent available props
* Update analytics events

src/components/views/user-onboarding/UserOnboardingTask.tsx

@@ -0,0 +1,64 @@
+/*
+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 classNames from "classnames";
+import * as React from "react";
+
+import { UserOnboardingTask as Task } from "../../../hooks/useUserOnboardingTasks";
+import AccessibleButton from "../../views/elements/AccessibleButton";
+import Heading from "../../views/typography/Heading";
+
+interface Props {
+    task: Task;
+    completed?: boolean;
+}
+
+export function UserOnboardingTask({ task, completed = false }: Props) {
+    return (
+        <li className={classNames("mx_UserOnboardingTask", {
+            "mx_UserOnboardingTask_completed": completed,
+        })}>
+            <div
+                className="mx_UserOnboardingTask_number"
+                role="checkbox"
+                aria-disabled="true"
+                aria-checked={completed}
+                aria-labelledby={`mx_UserOnboardingTask_${task.id}`}
+            />
+            <div
+                id={`mx_UserOnboardingTask_${task.id}`}
+                className="mx_UserOnboardingTask_content">
+                <Heading size="h4" className="mx_UserOnboardingTask_title">
+                    { task.title }
+                </Heading>
+                <div className="mx_UserOnboardingTask_description">
+                    { task.description }
+                </div>
+            </div>
+            { task.action && (!task.action.hideOnComplete || !completed) && (
+                <AccessibleButton
+                    element="a"
+                    className="mx_UserOnboardingTask_action"
+                    kind="primary_outline"
+                    href={task.action.href}
+                    target="_blank"
+                    onClick={task.action.onClick}>
+                    { task.action.label }
+                </AccessibleButton>
+            ) }
+        </li>
+    );
+}