412 lines
13 KiB
TypeScript
412 lines
13 KiB
TypeScript
// Copyright 2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { CSSProperties, ReactNode } from 'react';
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import React, {
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useState,
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useRef,
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useMemo,
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useCallback,
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useEffect,
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} from 'react';
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import classNames from 'classnames';
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import { noop } from 'lodash';
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import type { VideoFrameSource } from '@signalapp/ringrtc';
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import type { GroupCallRemoteParticipantType } from '../types/Calling';
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import type { LocalizerType } from '../types/Util';
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import { AvatarColors } from '../types/Colors';
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import { CallBackgroundBlur } from './CallBackgroundBlur';
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import {
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CallingAudioIndicator,
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SPEAKING_LINGER_MS,
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} from './CallingAudioIndicator';
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import { Avatar, AvatarSize } from './Avatar';
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import { ConfirmationDialog } from './ConfirmationDialog';
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import { Intl } from './Intl';
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import { ContactName } from './conversation/ContactName';
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import { useIntersectionObserver } from '../hooks/useIntersectionObserver';
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import { MAX_FRAME_HEIGHT, MAX_FRAME_WIDTH } from '../calling/constants';
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import { useValueAtFixedRate } from '../hooks/useValueAtFixedRate';
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const MAX_TIME_TO_SHOW_STALE_VIDEO_FRAMES = 10000;
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const MAX_TIME_TO_SHOW_STALE_SCREENSHARE_FRAMES = 60000;
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type BasePropsType = {
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getFrameBuffer: () => Buffer;
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getGroupCallVideoFrameSource: (demuxId: number) => VideoFrameSource;
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i18n: LocalizerType;
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isActiveSpeakerInSpeakerView: boolean;
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isCallReconnecting: boolean;
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onClickRaisedHand?: () => void;
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onVisibilityChanged?: (demuxId: number, isVisible: boolean) => unknown;
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remoteParticipant: GroupCallRemoteParticipantType;
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remoteParticipantsCount: number;
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};
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type InPipPropsType = {
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isInPip: true;
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};
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type InOverflowAreaPropsType = {
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height: number;
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isInPip?: false;
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audioLevel: number;
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width: number;
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};
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type InGridPropsType = InOverflowAreaPropsType & {
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left: number;
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top: number;
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};
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export type PropsType = BasePropsType &
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(InPipPropsType | InOverflowAreaPropsType | InGridPropsType);
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export const GroupCallRemoteParticipant: React.FC<PropsType> = React.memo(
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function GroupCallRemoteParticipantInner(props) {
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const {
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getFrameBuffer,
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getGroupCallVideoFrameSource,
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i18n,
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onClickRaisedHand,
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onVisibilityChanged,
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remoteParticipantsCount,
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isActiveSpeakerInSpeakerView,
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isCallReconnecting,
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} = props;
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const {
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acceptedMessageRequest,
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avatarPath,
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color,
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demuxId,
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hasRemoteAudio,
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hasRemoteVideo,
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isHandRaised,
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isBlocked,
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isMe,
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profileName,
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sharedGroupNames,
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sharingScreen,
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title,
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videoAspectRatio,
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} = props.remoteParticipant;
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const isSpeaking = useValueAtFixedRate(
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!props.isInPip ? props.audioLevel > 0 : false,
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SPEAKING_LINGER_MS
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);
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const [hasReceivedVideoRecently, setHasReceivedVideoRecently] =
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useState(false);
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const [isWide, setIsWide] = useState<boolean>(
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videoAspectRatio ? videoAspectRatio >= 1 : true
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);
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const [showBlockInfo, setShowBlockInfo] = useState(false);
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// We have some state (`hasReceivedVideoRecently`) and this ref. We can't have a
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// single state value like `lastReceivedVideoAt` because (1) it won't automatically
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// trigger a re-render after the video has become stale (2) it would cause a full
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// re-render of the component for every frame, which is way too often.
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//
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// Alternatively, we could create a timeout that's reset every time we get a video
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// frame (perhaps using a debounce function), but that becomes harder to clean up
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// when the component unmounts.
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const lastReceivedVideoAt = useRef(-Infinity);
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const remoteVideoRef = useRef<HTMLCanvasElement | null>(null);
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const canvasContextRef = useRef<CanvasRenderingContext2D | null>(null);
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const imageDataRef = useRef<ImageData | null>(null);
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const [intersectionRef, intersectionObserverEntry] =
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useIntersectionObserver();
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const isVisible = intersectionObserverEntry
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? intersectionObserverEntry.isIntersecting
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: true;
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useEffect(() => {
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onVisibilityChanged?.(demuxId, isVisible);
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}, [demuxId, isVisible, onVisibilityChanged]);
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const wantsToShowVideo = hasRemoteVideo && !isBlocked && isVisible;
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const hasVideoToShow = wantsToShowVideo && hasReceivedVideoRecently;
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const videoFrameSource = useMemo(
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() => getGroupCallVideoFrameSource(demuxId),
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[getGroupCallVideoFrameSource, demuxId]
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);
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const renderVideoFrame = useCallback(() => {
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const frameAge = Date.now() - lastReceivedVideoAt.current;
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const maxFrameAge = sharingScreen
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? MAX_TIME_TO_SHOW_STALE_SCREENSHARE_FRAMES
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: MAX_TIME_TO_SHOW_STALE_VIDEO_FRAMES;
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if (frameAge > maxFrameAge) {
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// We consider that we have received video recently from a remote participant if
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// we have received it recently relative to the last time we had a connection. If
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// we lost their video due to our reconnecting, we still want to show the last
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// frame of video (blurred out) until we have reconnected.
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if (!isCallReconnecting) {
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setHasReceivedVideoRecently(false);
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}
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}
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const canvasEl = remoteVideoRef.current;
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if (!canvasEl) {
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return;
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}
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const canvasContext = canvasContextRef.current;
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if (!canvasContext) {
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return;
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}
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// This frame buffer is shared by all participants, so it may contain pixel data
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// for other participants, or pixel data from a previous frame. That's why we
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// return early and use the `frameWidth` and `frameHeight`.
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const frameBuffer = getFrameBuffer();
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const frameDimensions = videoFrameSource.receiveVideoFrame(
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frameBuffer,
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MAX_FRAME_WIDTH,
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MAX_FRAME_HEIGHT
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);
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if (!frameDimensions) {
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return;
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}
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const [frameWidth, frameHeight] = frameDimensions;
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if (
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frameWidth < 2 ||
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frameHeight < 2 ||
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frameWidth > MAX_FRAME_WIDTH ||
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frameHeight > MAX_FRAME_HEIGHT
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) {
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return;
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}
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canvasEl.width = frameWidth;
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canvasEl.height = frameHeight;
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let imageData = imageDataRef.current;
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if (
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imageData?.width !== frameWidth ||
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imageData?.height !== frameHeight
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) {
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imageData = new ImageData(frameWidth, frameHeight);
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imageDataRef.current = imageData;
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}
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imageData.data.set(frameBuffer.subarray(0, frameWidth * frameHeight * 4));
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canvasContext.putImageData(imageData, 0, 0);
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lastReceivedVideoAt.current = Date.now();
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setHasReceivedVideoRecently(true);
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setIsWide(frameWidth > frameHeight);
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}, [getFrameBuffer, videoFrameSource, sharingScreen, isCallReconnecting]);
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useEffect(() => {
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if (!hasRemoteVideo) {
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setHasReceivedVideoRecently(false);
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}
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}, [hasRemoteVideo]);
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useEffect(() => {
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if (!hasRemoteVideo || !isVisible) {
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return noop;
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}
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let rafId = requestAnimationFrame(tick);
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function tick() {
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renderVideoFrame();
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rafId = requestAnimationFrame(tick);
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}
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return () => {
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cancelAnimationFrame(rafId);
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};
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}, [hasRemoteVideo, isVisible, renderVideoFrame, videoFrameSource]);
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let canvasStyles: CSSProperties;
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let containerStyles: CSSProperties;
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// If our `width` and `height` props don't match the canvas's aspect ratio, we want to
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// fill the container. This can happen when RingRTC gives us an inaccurate
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// `videoAspectRatio`, or if the container is an unexpected size.
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if (isWide) {
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canvasStyles = { width: '100%' };
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} else {
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canvasStyles = { height: '100%' };
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}
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let avatarSize: number;
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let footerInfoElement: ReactNode;
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if (props.isInPip) {
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containerStyles = canvasStyles;
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avatarSize = AvatarSize.FORTY_EIGHT;
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} else {
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const { width, height } = props;
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const shorterDimension = Math.min(width, height);
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if (shorterDimension >= 180) {
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avatarSize = AvatarSize.EIGHTY;
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} else {
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avatarSize = AvatarSize.FORTY_EIGHT;
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}
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containerStyles = {
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height,
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width,
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};
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if ('top' in props) {
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containerStyles.position = 'absolute';
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containerStyles.insetInlineStart = `${props.left}px`;
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containerStyles.top = `${props.top}px`;
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}
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const nameElement = (
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<ContactName
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module="module-ongoing-call__group-call-remote-participant__info__contact-name"
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title={title}
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/>
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);
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if (isHandRaised) {
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footerInfoElement = (
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<button
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className="module-ongoing-call__group-call-remote-participant__info module-ongoing-call__group-call-remote-participant__info--clickable"
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onClick={onClickRaisedHand}
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type="button"
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>
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<div className="CallingStatusIndicator CallingStatusIndicator--HandRaised" />
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{nameElement}
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</button>
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);
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} else {
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footerInfoElement = (
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<div className="module-ongoing-call__group-call-remote-participant__info">
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{nameElement}
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</div>
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);
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}
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}
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return (
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<>
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{showBlockInfo && (
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<ConfirmationDialog
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dialogName="GroupCallRemoteParticipant.blockInfo"
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cancelText={i18n('icu:ok')}
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i18n={i18n}
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onClose={() => {
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setShowBlockInfo(false);
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}}
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title={
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<div className="module-ongoing-call__group-call-remote-participant__blocked--modal-title">
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<Intl
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i18n={i18n}
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id="icu:calling__you-have-blocked"
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components={{
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name: <ContactName key="name" title={title} />,
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}}
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/>
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</div>
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}
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>
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{i18n('icu:calling__block-info')}
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</ConfirmationDialog>
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)}
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<div
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className={classNames(
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'module-ongoing-call__group-call-remote-participant',
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isSpeaking &&
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!isActiveSpeakerInSpeakerView &&
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remoteParticipantsCount > 1 &&
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'module-ongoing-call__group-call-remote-participant--speaking',
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isHandRaised &&
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'module-ongoing-call__group-call-remote-participant--hand-raised'
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)}
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ref={intersectionRef}
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style={containerStyles}
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>
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{!props.isInPip && (
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<>
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<CallingAudioIndicator
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hasAudio={hasRemoteAudio}
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audioLevel={props.audioLevel}
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shouldShowSpeaking={isSpeaking}
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/>
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<div className="module-ongoing-call__group-call-remote-participant__footer">
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{footerInfoElement}
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</div>
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</>
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)}
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{wantsToShowVideo && (
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<canvas
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className={classNames(
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'module-ongoing-call__group-call-remote-participant__remote-video',
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isCallReconnecting &&
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'module-ongoing-call__group-call-remote-participant__remote-video--reconnecting'
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)}
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style={{
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...canvasStyles,
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// If we want to show video but don't have any yet, we still render the
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// canvas invisibly. This lets us render frame data immediately without
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// having to juggle anything.
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...(hasVideoToShow ? {} : { display: 'none' }),
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}}
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ref={canvasEl => {
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remoteVideoRef.current = canvasEl;
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if (canvasEl) {
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canvasContextRef.current = canvasEl.getContext('2d', {
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alpha: false,
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desynchronized: true,
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storage: 'discardable',
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} as CanvasRenderingContext2DSettings);
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} else {
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canvasContextRef.current = null;
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}
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}}
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/>
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)}
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{!hasVideoToShow && (
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<CallBackgroundBlur avatarPath={avatarPath} color={color}>
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{isBlocked ? (
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<>
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<i className="module-ongoing-call__group-call-remote-participant__blocked" />
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<button
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type="button"
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className="module-ongoing-call__group-call-remote-participant__blocked--info"
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onClick={() => {
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setShowBlockInfo(true);
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}}
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>
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{i18n('icu:moreInfo')}
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</button>
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</>
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) : (
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<Avatar
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acceptedMessageRequest={acceptedMessageRequest}
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avatarPath={avatarPath}
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badge={undefined}
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color={color || AvatarColors[0]}
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noteToSelf={false}
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conversationType="direct"
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i18n={i18n}
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isMe={isMe}
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profileName={profileName}
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title={title}
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sharedGroupNames={sharedGroupNames}
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size={avatarSize}
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/>
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)}
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</CallBackgroundBlur>
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)}
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</div>
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</>
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);
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}
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);
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