Update video rooms to new design specs (#8207)

* Remove radio component

* "Voice room" → "video room"

* Remove interactivity from video room tiles

* Update connection state when joining via widget

* Simplify room header buttons for video rooms

* Split out video room creation into a separate menu option

* Simplify room options for video rooms

* Update video room tile layout

* Tell the Jitsi widget whether it's a video channel

* Update tests

* "Voice" → "video" in more places

* Fix tests

* Re-add frame to immersive Jitsi widgets

* Comment ack

* Make updateDevices more readable

* Type FacePile

src/utils/VideoChannelUtils.ts

@@ -0,0 +1,47 @@
+/*
+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 { CallType } from "matrix-js-sdk/src/webrtc/call";
+import { RoomState } from "matrix-js-sdk/src/models/room-state";
+import { RoomMember } from "matrix-js-sdk/src/models/room-member";
+
+import WidgetStore, { IApp } from "../stores/WidgetStore";
+import { WidgetType } from "../widgets/WidgetType";
+import WidgetUtils from "./WidgetUtils";
+
+export const VIDEO_CHANNEL = "io.element.video";
+export const VIDEO_CHANNEL_MEMBER = "io.element.video.member";
+
+export interface IVideoChannelMemberContent {
+    // Connected device IDs
+    devices: string[];
+}
+
+export const getVideoChannel = (roomId: string): IApp => {
+    const apps = WidgetStore.instance.getApps(roomId);
+    return apps.find(app => WidgetType.JITSI.matches(app.type) && app.id === VIDEO_CHANNEL);
+};
+
+export const addVideoChannel = async (roomId: string, roomName: string) => {
+    await WidgetUtils.addJitsiWidget(roomId, CallType.Video, "Video channel", VIDEO_CHANNEL, roomName);
+};
+
+export const getConnectedMembers = (state: RoomState): RoomMember[] =>
+    state.getStateEvents(VIDEO_CHANNEL_MEMBER)
+        // Must have a device connected and still be joined to the room
+        .filter(e => e.getContent<IVideoChannelMemberContent>().devices?.length)
+        .map(e => state.getMember(e.getStateKey()))
+        .filter(member => member.membership === "join");