element-call/src/room/InCallView.tsx
Robin Townsend cc35f243f2 Make NewVideoGrid support arbitrary layout systems
In preparation for adding layouts other than big grid to the NewVideoGrid component, I've abstracted the grid layout system into an interface called Layout. For now, the only implementation of this interface is BigGrid, but this will allow us to easily plug in Spotlight, SplitGrid, and OneOnOne layout systems so we can get rid of the old VideoGrid component and have One Grid to Rule Them All™.

Please do shout if any of this seems obtuse or underdocumented, because I'm not super happy with how approachable the NewVideoGrid code looks right now…

Incidentally, this refactoring made it way easier to save the state of the grid while in fullscreen / another layout, so I went ahead and did that.
2023-06-27 14:20:45 -04:00

538 lines
16 KiB
TypeScript

/*
Copyright 2022 - 2023 New Vector Ltd
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 { ResizeObserver } from "@juggle/resize-observer";
import {
RoomAudioRenderer,
RoomContext,
useLocalParticipant,
useParticipants,
useTracks,
} from "@livekit/components-react";
import { usePreventScroll } from "@react-aria/overlays";
import classNames from "classnames";
import { Room, Track } from "livekit-client";
import { MatrixClient } from "matrix-js-sdk/src/client";
import { RoomMember } from "matrix-js-sdk/src/models/room-member";
import { GroupCall } from "matrix-js-sdk/src/webrtc/groupCall";
import React, { Ref, useCallback, useEffect, useMemo, useRef } from "react";
import { useTranslation } from "react-i18next";
import useMeasure from "react-use-measure";
import { OverlayTriggerState } from "@react-stately/overlays";
import { JoinRule } from "matrix-js-sdk/src/@types/partials";
import type { IWidgetApiRequest } from "matrix-widget-api";
import {
HangupButton,
MicButton,
VideoButton,
ScreenshareButton,
SettingsButton,
InviteButton,
} from "../button";
import {
Header,
LeftNav,
RightNav,
RoomHeaderInfo,
VersionMismatchWarning,
} from "../Header";
import {
VideoGrid,
useVideoGridLayout,
TileDescriptor,
} from "../video-grid/VideoGrid";
import {
useShowInspector,
useShowConnectionStats,
} from "../settings/useSetting";
import { useModalTriggerState } from "../Modal";
import { PosthogAnalytics } from "../analytics/PosthogAnalytics";
import { useUrlParams } from "../UrlParams";
import { useCallViewKeyboardShortcuts } from "../useCallViewKeyboardShortcuts";
import { usePrefersReducedMotion } from "../usePrefersReducedMotion";
import { ElementWidgetActions, widget } from "../widget";
import { GridLayoutMenu } from "./GridLayoutMenu";
import { GroupCallInspector } from "./GroupCallInspector";
import styles from "./InCallView.module.css";
import { MatrixInfo } from "./VideoPreview";
import { useJoinRule } from "./useJoinRule";
import { ParticipantInfo } from "./useGroupCall";
import { ItemData, TileContent } from "../video-grid/VideoTile";
import { Config } from "../config/Config";
import { NewVideoGrid, useLayoutStates } from "../video-grid/NewVideoGrid";
import { OTelGroupCallMembership } from "../otel/OTelGroupCallMembership";
import { SettingsModal } from "../settings/SettingsModal";
import { InviteModal } from "./InviteModal";
import { useRageshakeRequestModal } from "../settings/submit-rageshake";
import { RageshakeRequestModal } from "./RageshakeRequestModal";
import { VideoTile } from "../video-grid/VideoTile";
import { UserChoices, useLiveKit } from "../livekit/useLiveKit";
import { useMediaDevices } from "../livekit/useMediaDevices";
import { useFullscreen } from "./useFullscreen";
const canScreenshare = "getDisplayMedia" in (navigator.mediaDevices ?? {});
// There is currently a bug in Safari our our code with cloning and sending MediaStreams
// or with getUsermedia and getDisplaymedia being used within the same session.
// For now we can disable screensharing in Safari.
const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
interface ActiveCallProps extends Omit<Props, "livekitRoom"> {
userChoices: UserChoices;
}
export function ActiveCall(props: ActiveCallProps) {
const livekitRoom = useLiveKit(props.userChoices, {
sfuUrl: Config.get().livekit!.server_url,
jwtUrl: `${Config.get().livekit!.jwt_service_url}/token`,
roomName: props.matrixInfo.roomName,
userDisplayName: props.matrixInfo.displayName,
userIdentity: `${props.client.getUserId()}:${props.client.getDeviceId()}`,
});
return (
livekitRoom && (
<RoomContext.Provider value={livekitRoom}>
<InCallView {...props} livekitRoom={livekitRoom} />
</RoomContext.Provider>
)
);
}
interface Props {
client: MatrixClient;
groupCall: GroupCall;
livekitRoom: Room;
participants: Map<RoomMember, Map<string, ParticipantInfo>>;
onLeave: () => void;
unencryptedEventsFromUsers: Set<string>;
hideHeader: boolean;
matrixInfo: MatrixInfo;
otelGroupCallMembership: OTelGroupCallMembership;
}
export function InCallView({
client,
groupCall,
livekitRoom,
participants,
onLeave,
unencryptedEventsFromUsers,
hideHeader,
matrixInfo,
otelGroupCallMembership,
}: Props) {
const { t } = useTranslation();
usePreventScroll();
const containerRef1 = useRef<HTMLDivElement | null>(null);
const [containerRef2, bounds] = useMeasure({ polyfill: ResizeObserver });
const boundsValid = bounds.height > 0;
// Merge the refs so they can attach to the same element
const containerRef = useCallback(
(el: HTMLDivElement) => {
containerRef1.current = el;
containerRef2(el);
},
[containerRef1, containerRef2]
);
// Managed media devices state coupled with an active room.
const roomMediaDevices = useMediaDevices(livekitRoom);
const screenSharingTracks = useTracks(
[{ source: Track.Source.ScreenShare, withPlaceholder: false }],
{
room: livekitRoom,
}
);
const { layout, setLayout } = useVideoGridLayout(
screenSharingTracks.length > 0
);
const [showInspector] = useShowInspector();
const [showConnectionStats] = useShowConnectionStats();
const { hideScreensharing } = useUrlParams();
const {
isMicrophoneEnabled,
isCameraEnabled,
isScreenShareEnabled,
localParticipant,
} = useLocalParticipant({ room: livekitRoom });
const toggleMicrophone = useCallback(async () => {
await localParticipant.setMicrophoneEnabled(!isMicrophoneEnabled);
}, [localParticipant, isMicrophoneEnabled]);
const toggleCamera = useCallback(async () => {
await localParticipant.setCameraEnabled(!isCameraEnabled);
}, [localParticipant, isCameraEnabled]);
const joinRule = useJoinRule(groupCall.room);
// This function incorrectly assumes that there is a camera and microphone, which is not always the case.
// TODO: Make sure that this module is resilient when it comes to camera/microphone availability!
useCallViewKeyboardShortcuts(
containerRef1,
toggleMicrophone,
toggleCamera,
async (muted) => await localParticipant.setMicrophoneEnabled(!muted)
);
useEffect(() => {
widget?.api.transport.send(
layout === "freedom"
? ElementWidgetActions.TileLayout
: ElementWidgetActions.SpotlightLayout,
{}
);
}, [layout]);
useEffect(() => {
if (widget) {
const onTileLayout = async (ev: CustomEvent<IWidgetApiRequest>) => {
setLayout("freedom");
await widget.api.transport.reply(ev.detail, {});
};
const onSpotlightLayout = async (ev: CustomEvent<IWidgetApiRequest>) => {
setLayout("spotlight");
await widget.api.transport.reply(ev.detail, {});
};
widget.lazyActions.on(ElementWidgetActions.TileLayout, onTileLayout);
widget.lazyActions.on(
ElementWidgetActions.SpotlightLayout,
onSpotlightLayout
);
return () => {
widget.lazyActions.off(ElementWidgetActions.TileLayout, onTileLayout);
widget.lazyActions.off(
ElementWidgetActions.SpotlightLayout,
onSpotlightLayout
);
};
}
}, [setLayout]);
const reducedControls = boundsValid && bounds.width <= 400;
const noControls = reducedControls && bounds.height <= 400;
const items = useParticipantTiles(livekitRoom, participants);
const { fullscreenItem, toggleFullscreen, exitFullscreen } =
useFullscreen(items);
// The maximised participant: either the participant that the user has
// manually put in fullscreen, or the focused (active) participant if the
// window is too small to show everyone
const maximisedParticipant = useMemo(
() =>
fullscreenItem ??
(noControls
? items.find((item) => item.isSpeaker) ?? items.at(0) ?? null
: null),
[fullscreenItem, noControls, items]
);
const Grid =
items.length > 12 && layout === "freedom" ? NewVideoGrid : VideoGrid;
const prefersReducedMotion = usePrefersReducedMotion();
// This state is lifted out of NewVideoGrid so that layout states can be
// restored after a layout switch or upon exiting fullscreen
const layoutStates = useLayoutStates();
const renderContent = (): JSX.Element => {
if (items.length === 0) {
return (
<div className={styles.centerMessage}>
<p>{t("Waiting for other participants…")}</p>
</div>
);
}
if (maximisedParticipant) {
return (
<VideoTile
maximised={true}
fullscreen={maximisedParticipant === fullscreenItem}
onToggleFullscreen={toggleFullscreen}
targetHeight={bounds.height}
targetWidth={bounds.width}
key={maximisedParticipant.id}
data={maximisedParticipant.data}
showSpeakingIndicator={false}
showConnectionStats={showConnectionStats}
/>
);
}
return (
<Grid
items={items}
layout={layout}
disableAnimations={prefersReducedMotion || isSafari}
layoutStates={layoutStates}
>
{(props) => (
<VideoTile
maximised={false}
fullscreen={false}
onToggleFullscreen={toggleFullscreen}
showSpeakingIndicator={items.length > 2}
showConnectionStats={showConnectionStats}
{...props}
ref={props.ref as Ref<HTMLDivElement>}
/>
)}
</Grid>
);
};
const {
modalState: rageshakeRequestModalState,
modalProps: rageshakeRequestModalProps,
} = useRageshakeRequestModal(groupCall.room.roomId);
const {
modalState: settingsModalState,
modalProps: settingsModalProps,
}: {
modalState: OverlayTriggerState;
modalProps: {
isOpen: boolean;
onClose: () => void;
};
} = useModalTriggerState();
const openSettings = useCallback(() => {
settingsModalState.open();
}, [settingsModalState]);
const {
modalState: inviteModalState,
modalProps: inviteModalProps,
}: {
modalState: OverlayTriggerState;
modalProps: {
isOpen: boolean;
onClose: () => void;
};
} = useModalTriggerState();
const openInvite = useCallback(() => {
inviteModalState.open();
}, [inviteModalState]);
const containerClasses = classNames(styles.inRoom, {
[styles.maximised]: undefined,
});
const toggleScreensharing = useCallback(async () => {
exitFullscreen();
await localParticipant.setScreenShareEnabled(!isScreenShareEnabled);
}, [localParticipant, isScreenShareEnabled, exitFullscreen]);
let footer: JSX.Element | null;
if (noControls) {
footer = null;
} else {
const buttons: JSX.Element[] = [];
buttons.push(
<MicButton
key="1"
muted={!isMicrophoneEnabled}
onPress={toggleMicrophone}
data-testid="incall_mute"
/>,
<VideoButton
key="2"
muted={!isCameraEnabled}
onPress={toggleCamera}
data-testid="incall_videomute"
/>
);
if (!reducedControls) {
if (canScreenshare && !hideScreensharing && !isSafari) {
buttons.push(
<ScreenshareButton
key="3"
enabled={isScreenShareEnabled}
onPress={toggleScreensharing}
data-testid="incall_screenshare"
/>
);
}
buttons.push(<SettingsButton key="4" onPress={openSettings} />);
}
buttons.push(
<HangupButton key="6" onPress={onLeave} data-testid="incall_leave" />
);
footer = <div className={styles.footer}>{buttons}</div>;
}
return (
<div className={containerClasses} ref={containerRef}>
{!hideHeader && maximisedParticipant === null && (
<Header>
<LeftNav>
<RoomHeaderInfo
roomName={matrixInfo.roomName}
avatarUrl={matrixInfo.roomAvatarUrl}
/>
<VersionMismatchWarning
users={unencryptedEventsFromUsers}
room={groupCall.room}
/>
</LeftNav>
<RightNav>
<GridLayoutMenu layout={layout} setLayout={setLayout} />
{joinRule === JoinRule.Public && (
<InviteButton variant="icon" onClick={openInvite} />
)}
</RightNav>
</Header>
)}
<div className={styles.controlsOverlay}>
<RoomAudioRenderer />
{renderContent()}
{footer}
</div>
<GroupCallInspector
client={client}
groupCall={groupCall}
otelGroupCallMembership={otelGroupCallMembership}
show={showInspector}
/>
{rageshakeRequestModalState.isOpen && !noControls && (
<RageshakeRequestModal
{...rageshakeRequestModalProps}
roomIdOrAlias={matrixInfo.roomIdOrAlias}
/>
)}
{settingsModalState.isOpen && (
<SettingsModal
client={client}
roomId={groupCall.room.roomId}
mediaDevices={roomMediaDevices}
{...settingsModalProps}
/>
)}
{inviteModalState.isOpen && (
<InviteModal
roomIdOrAlias={matrixInfo.roomIdOrAlias}
{...inviteModalProps}
/>
)}
</div>
);
}
function useParticipantTiles(
livekitRoom: Room,
participants: Map<RoomMember, Map<string, ParticipantInfo>>
): TileDescriptor<ItemData>[] {
const sfuParticipants = useParticipants({
room: livekitRoom,
});
const items = useMemo(() => {
// The IDs of the participants who published membership event to the room (i.e. are present from Matrix perspective).
const matrixParticipants: Map<string, RoomMember> = new Map(
[...participants.entries()].flatMap(([user, devicesMap]) => {
return [...devicesMap.keys()].map((deviceId) => [
`${user.userId}:${deviceId}`,
user,
]);
})
);
const hasPresenter =
sfuParticipants.find((p) => p.isScreenShareEnabled) !== undefined;
let allGhosts = true;
const speakActiveTime = new Date();
speakActiveTime.setSeconds(speakActiveTime.getSeconds() - 10);
// Iterate over SFU participants (those who actually are present from the SFU perspective) and create tiles for them.
const tiles: TileDescriptor<ItemData>[] = sfuParticipants.flatMap(
(sfuParticipant) => {
const hadSpokedInTime =
!hasPresenter && sfuParticipant.lastSpokeAt
? sfuParticipant.lastSpokeAt > speakActiveTime
: false;
const id = sfuParticipant.identity;
const member = matrixParticipants.get(id);
allGhosts &&= member === undefined;
const userMediaTile = {
id,
focused: false,
isPresenter: sfuParticipant.isScreenShareEnabled,
isSpeaker:
(sfuParticipant.isSpeaking || hadSpokedInTime) &&
!sfuParticipant.isLocal,
hasVideo: sfuParticipant.isCameraEnabled,
local: sfuParticipant.isLocal,
largeBaseSize: false,
data: {
id,
member,
sfuParticipant,
content: TileContent.UserMedia,
},
};
// If there is a screen sharing enabled for this participant, create a tile for it as well.
let screenShareTile: TileDescriptor<ItemData> | undefined;
if (sfuParticipant.isScreenShareEnabled) {
const screenShareId = `${id}:screen-share`;
screenShareTile = {
...userMediaTile,
id: screenShareId,
focused: true,
largeBaseSize: true,
placeNear: id,
data: {
...userMediaTile.data,
id: screenShareId,
content: TileContent.ScreenShare,
},
};
}
return screenShareTile
? [userMediaTile, screenShareTile]
: [userMediaTile];
}
);
PosthogAnalytics.instance.eventCallEnded.cacheParticipantCountChanged(
tiles.length
);
// If every item is a ghost, that probably means we're still connecting and
// shouldn't bother showing anything yet
return allGhosts ? [] : tiles;
}, [participants, sfuParticipants]);
return items;
}