671 lines
21 KiB
TypeScript
671 lines
21 KiB
TypeScript
import type { Socket } from 'socket.io-client';
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import type Peer from 'peerjs';
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import type { MediaConnection } from 'peerjs';
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import type MessageManager from '../MessageManager';
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import type Screen from '../Screen/Screen';
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import appStore from 'App/store';
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import type { LocalStream } from './LocalStream';
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import type { Store } from '../../common/types'
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import AnnotationCanvas from './AnnotationCanvas';
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import MStreamReader from '../messages/MStreamReader';
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import JSONRawMessageReader from '../messages/JSONRawMessageReader'
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import { toast } from 'react-toastify'
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export enum CallingState {
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NoCall,
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Connecting,
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Requesting,
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Reconnecting,
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OnCall,
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}
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export enum ConnectionStatus {
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Connecting,
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WaitingMessages,
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Connected,
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Inactive,
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Disconnected,
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Error,
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Closed,
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}
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export enum RemoteControlStatus {
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Disabled = 0,
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Requesting,
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Enabled,
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}
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export enum SessionRecordingStatus {
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Off,
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Requesting,
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Recording
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}
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export function getStatusText(status: ConnectionStatus): string {
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switch(status) {
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case ConnectionStatus.Closed:
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return 'Closed...';
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case ConnectionStatus.Connecting:
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return "Connecting...";
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case ConnectionStatus.Connected:
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return "";
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case ConnectionStatus.Inactive:
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return "Client tab is inactive";
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case ConnectionStatus.Disconnected:
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return "Disconnected";
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case ConnectionStatus.Error:
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return "Something went wrong. Try to reload the page.";
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case ConnectionStatus.WaitingMessages:
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return "Connected. Waiting for the data... (The tab might be inactive)"
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}
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}
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export interface State {
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calling: CallingState;
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peerConnectionStatus: ConnectionStatus;
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remoteControl: RemoteControlStatus;
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recordingState: SessionRecordingStatus;
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annotating: boolean;
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assistStart: number;
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}
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export const INITIAL_STATE: State = {
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calling: CallingState.NoCall,
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peerConnectionStatus: ConnectionStatus.Connecting,
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remoteControl: RemoteControlStatus.Disabled,
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recordingState: SessionRecordingStatus.Off,
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annotating: false,
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assistStart: 0,
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}
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const MAX_RECONNECTION_COUNT = 4;
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export default class AssistManager {
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private videoStreams: Record<string, MediaStreamTrack> = {}
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// TODO: Session type
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constructor(
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private session: any,
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private md: MessageManager,
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private screen: Screen,
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private config: RTCIceServer[],
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private store: Store<State>,
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) {}
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private setStatus(status: ConnectionStatus) {
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if (this.store.get().peerConnectionStatus === ConnectionStatus.Disconnected &&
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status !== ConnectionStatus.Connected) {
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return
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}
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if (status === ConnectionStatus.Connecting) {
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this.md.setMessagesLoading(true);
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} else {
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this.md.setMessagesLoading(false);
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}
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if (status === ConnectionStatus.Connected) {
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this.screen.display(true);
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} else {
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this.screen.display(false);
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}
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this.store.update({ peerConnectionStatus: status });
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}
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private get peerID(): string {
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return `${this.session.projectKey}-${this.session.sessionId}`
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}
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private socketCloseTimeout: ReturnType<typeof setTimeout> | undefined
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private onVisChange = () => {
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this.socketCloseTimeout && clearTimeout(this.socketCloseTimeout)
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if (document.hidden) {
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this.socketCloseTimeout = setTimeout(() => {
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const state = this.store.get()
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if (document.hidden &&
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(state.calling === CallingState.NoCall && state.remoteControl === RemoteControlStatus.Enabled)) {
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this.socket?.close()
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}
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}, 30000)
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} else {
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this.socket?.open()
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}
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}
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private socket: Socket | null = null
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connect(agentToken: string) {
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const jmr = new JSONRawMessageReader()
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const reader = new MStreamReader(jmr, this.session.startedAt)
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let waitingForMessages = true
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let disconnectTimeout: ReturnType<typeof setTimeout> | undefined
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let inactiveTimeout: ReturnType<typeof setTimeout> | undefined
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function clearDisconnectTimeout() {
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disconnectTimeout && clearTimeout(disconnectTimeout)
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disconnectTimeout = undefined
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}
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function clearInactiveTimeout() {
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inactiveTimeout && clearTimeout(inactiveTimeout)
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inactiveTimeout = undefined
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}
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const now = +new Date()
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this.store.update({ assistStart: now })
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// @ts-ignore
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import('socket.io-client').then(({ default: io }) => {
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if (this.cleaned) { return }
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if (this.socket) { this.socket.close() } // TODO: single socket connection
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// @ts-ignore
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const urlObject = new URL(window.env.API_EDP || window.location.origin) // does it handle ssl automatically?
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const socket: Socket = this.socket = io(urlObject.origin, {
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path: '/ws-assist/socket',
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auth: {
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token: agentToken
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},
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query: {
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peerId: this.peerID,
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identity: "agent",
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agentInfo: JSON.stringify({
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...this.session.agentInfo,
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query: document.location.search
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})
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}
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})
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socket.on("connect", () => {
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waitingForMessages = true
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this.setStatus(ConnectionStatus.WaitingMessages) // TODO: happens frequently on bad network
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})
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socket.on("disconnect", () => {
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this.toggleRemoteControl(false)
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this.store.update({ calling: CallingState.NoCall })
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})
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socket.on('messages', messages => {
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jmr.append(messages) // as RawMessage[]
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if (waitingForMessages) {
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waitingForMessages = false // TODO: more explicit
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this.setStatus(ConnectionStatus.Connected)
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// Call State
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if (this.store.get().calling === CallingState.Reconnecting) {
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this._callSessionPeer() // reconnecting call (todo improve code separation)
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}
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}
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for (let msg = reader.readNext();msg !== null;msg = reader.readNext()) {
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// @ts-ignore TODO: fix msg types in generator
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this.md.appendMessage(msg, msg._index)
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}
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})
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socket.on("control_granted", id => {
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this.toggleRemoteControl(id === socket.id)
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})
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socket.on("control_rejected", id => {
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id === socket.id && this.toggleRemoteControl(false)
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})
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socket.on('SESSION_RECONNECTED', () => {
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clearDisconnectTimeout()
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clearInactiveTimeout()
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this.setStatus(ConnectionStatus.Connected)
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})
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socket.on('UPDATE_SESSION', ({ active }) => {
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clearDisconnectTimeout()
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!inactiveTimeout && this.setStatus(ConnectionStatus.Connected)
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if (typeof active === "boolean") {
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clearInactiveTimeout()
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if (active) {
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this.setStatus(ConnectionStatus.Connected)
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} else {
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inactiveTimeout = setTimeout(() => this.setStatus(ConnectionStatus.Inactive), 5000)
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}
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}
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})
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socket.on('videofeed', ({ streamId, enabled }) => {
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console.log(streamId, enabled)
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console.log(this.videoStreams)
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if (this.videoStreams[streamId]) {
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this.videoStreams[streamId].enabled = enabled
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}
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console.log(this.videoStreams)
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})
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socket.on('SESSION_DISCONNECTED', e => {
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waitingForMessages = true
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clearDisconnectTimeout()
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disconnectTimeout = setTimeout(() => {
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if (this.cleaned) { return }
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this.setStatus(ConnectionStatus.Disconnected)
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}, 30000)
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if (this.store.get().remoteControl === RemoteControlStatus.Requesting) {
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this.toggleRemoteControl(false) // else its remaining
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}
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// Call State
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if (this.store.get().calling === CallingState.OnCall) {
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this.store.update({ calling: CallingState.Reconnecting })
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} else if (this.store.get().calling === CallingState.Requesting){
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this.store.update({ calling: CallingState.NoCall })
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}
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})
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socket.on('error', e => {
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console.warn("Socket error: ", e )
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this.setStatus(ConnectionStatus.Error);
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this.toggleRemoteControl(false)
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})
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socket.on('call_end', this.onRemoteCallEnd)
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socket.on('recording_accepted', () => {
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this.toggleRecording(true)
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})
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socket.on('recording_rejected', () => {
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this.toggleRecording(false)
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})
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socket.on('recording_busy', () => {
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this.onRecordingBusy()
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})
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document.addEventListener('visibilitychange', this.onVisChange)
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})
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}
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/* ==== Recording the session ==== */
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private onRecordingBusy = () => {
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toast.error("This session is already being recorded by another agent")
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}
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public requestRecording = () => {
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const recordingState =this.store.get().recordingState
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if (!this.socket || recordingState === SessionRecordingStatus.Requesting) return;
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this.store.update({ recordingState: SessionRecordingStatus.Requesting })
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this.socket.emit("request_recording", JSON.stringify({
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...this.session.agentInfo,
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query: document.location.search,
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}))
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}
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public stopRecording = () => {
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const recordingState = this.store.get().recordingState
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if (!this.socket || recordingState === SessionRecordingStatus.Off) return;
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this.socket.emit("stop_recording")
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this.toggleRecording(false)
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}
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private get borderStyle() {
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const { recordingState, remoteControl } = this.store.get()
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const isRecordingActive = recordingState === SessionRecordingStatus.Recording
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const isControlActive = remoteControl === RemoteControlStatus.Enabled
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// recording gets priority here
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if (isRecordingActive) return { border: '2px dashed red' }
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if (isControlActive) return { border: '2px dashed blue' }
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return { border: 'unset'}
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}
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private toggleRecording = (isAccepted: boolean) => {
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this.store.update({ recordingState: isAccepted ? SessionRecordingStatus.Recording : SessionRecordingStatus.Off })
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this.screen.setBorderStyle(this.borderStyle)
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}
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/* ==== Remote Control ==== */
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private onMouseMove = (e: MouseEvent): void => {
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if (!this.socket) { return }
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const data = this.screen.getInternalCoordinates(e)
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this.socket.emit("move", [ data.x, data.y ])
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}
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private onWheel = (e: WheelEvent): void => {
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e.preventDefault()
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if (!this.socket) { return }
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//throttling makes movements less smooth, so it is omitted
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//this.onMouseMove(e)
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this.socket.emit("scroll", [ e.deltaX, e.deltaY ])
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}
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private onMouseClick = (e: MouseEvent): void => {
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if (!this.socket) { return; }
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if (this.store.get().annotating) { return; } // ignore clicks while annotating
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const data = this.screen.getInternalViewportCoordinates(e)
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// const el = this.screen.getElementFromPoint(e); // requires requestiong node_id from domManager
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const el = this.screen.getElementFromInternalPoint(data)
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if (el instanceof HTMLElement) {
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el.focus()
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el.oninput = e => {
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if (el instanceof HTMLTextAreaElement
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|| el instanceof HTMLInputElement
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) {
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this.socket && this.socket.emit("input", el.value)
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} else if (el.isContentEditable) {
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this.socket && this.socket.emit("input", el.innerText)
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}
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}
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// TODO: send "focus" event to assist with the nodeID
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el.onkeydown = e => {
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if (e.key == "Tab") {
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e.preventDefault()
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}
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}
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el.onblur = () => {
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el.oninput = null
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el.onblur = null
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}
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}
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this.socket.emit("click", [ data.x, data.y ]);
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}
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private toggleRemoteControl(enable: boolean){
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if (enable) {
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this.screen.overlay.addEventListener("mousemove", this.onMouseMove)
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this.screen.overlay.addEventListener("click", this.onMouseClick)
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this.screen.overlay.addEventListener("wheel", this.onWheel)
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this.store.update({ remoteControl: RemoteControlStatus.Enabled })
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this.screen.setBorderStyle(this.borderStyle)
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} else {
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this.screen.overlay.removeEventListener("mousemove", this.onMouseMove)
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this.screen.overlay.removeEventListener("click", this.onMouseClick)
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this.screen.overlay.removeEventListener("wheel", this.onWheel)
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this.store.update({ remoteControl: RemoteControlStatus.Disabled })
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this.toggleAnnotation(false)
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this.screen.setBorderStyle(this.borderStyle)
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}
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}
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requestReleaseRemoteControl = () => {
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if (!this.socket) { return }
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const remoteControl = this.store.get().remoteControl
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if (remoteControl === RemoteControlStatus.Requesting) { return }
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if (remoteControl === RemoteControlStatus.Disabled) {
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this.store.update({ remoteControl: RemoteControlStatus.Requesting })
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this.socket.emit("request_control", JSON.stringify({
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...this.session.agentInfo,
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query: document.location.search
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}))
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// setTimeout(() => {
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// if (this.store.get().remoteControl !== RemoteControlStatus.Requesting) { return }
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// this.socket?.emit("release_control")
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// this.store.update({ remoteControl: RemoteControlStatus.Disabled })
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// }, 8000)
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} else {
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this.socket.emit("release_control")
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this.toggleRemoteControl(false)
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}
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}
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releaseRemoteControl = () => {
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if (!this.socket) { return }
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this.socket.emit("release_control")
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this.toggleRemoteControl(false)
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}
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/* ==== PeerJS Call ==== */
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private _peer: Peer | null = null
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private connectionAttempts: number = 0
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private callConnection: MediaConnection[] = []
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private getPeer(): Promise<Peer> {
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if (this._peer && !this._peer.disconnected) { return Promise.resolve(this._peer) }
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// @ts-ignore
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const urlObject = new URL(window.env.API_EDP || window.location.origin)
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// @ts-ignore TODO: set module in ts settings
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return import('peerjs').then(({ default: Peer }) => {
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if (this.cleaned) {return Promise.reject("Already cleaned")}
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const peerOpts: Peer.PeerJSOption = {
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host: urlObject.hostname,
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path: '/assist',
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port: urlObject.port === "" ? (location.protocol === 'https:' ? 443 : 80 ): parseInt(urlObject.port),
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}
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if (this.config) {
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peerOpts['config'] = {
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iceServers: this.config,
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//@ts-ignore
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sdpSemantics: 'unified-plan',
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iceTransportPolicy: 'relay',
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};
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}
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const peer = this._peer = new Peer(peerOpts)
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peer.on('call', call => {
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console.log('getting call from', call.peer)
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call.answer(this.callArgs.localStream.stream)
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this.callConnection.push(call)
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this.callArgs.localStream.onVideoTrack(vTrack => {
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const sender = call.peerConnection.getSenders().find(s => s.track?.kind === "video")
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if (!sender) {
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console.warn("No video sender found")
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return
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}
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sender.replaceTrack(vTrack)
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})
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call.on('stream', stream => {
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this.videoStreams[call.peer] = stream.getVideoTracks()[0]
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this.callArgs && this.callArgs.onStream(stream)
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});
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// call.peerConnection.addEventListener("track", e => console.log('newtrack',e.track))
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call.on("close", this.onRemoteCallEnd)
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call.on("error", (e) => {
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console.error("PeerJS error (on call):", e)
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this.initiateCallEnd();
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this.callArgs && this.callArgs.onError && this.callArgs.onError();
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});
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})
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peer.on('error', e => {
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if (e.type === 'disconnected') {
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return peer.reconnect()
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} else if (e.type !== 'peer-unavailable') {
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console.error(`PeerJS error (on peer). Type ${e.type}`, e);
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}
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//call-reconnection connected
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// if (['peer-unavailable', 'network', 'webrtc'].includes(e.type)) {
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// this.setStatus(this.connectionAttempts++ < MAX_RECONNECTION_COUNT
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// ? ConnectionStatus.Connecting
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// : ConnectionStatus.Disconnected);
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// Reconnect...
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})
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return new Promise(resolve => {
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peer.on("open", () => resolve(peer))
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})
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});
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}
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private handleCallEnd() {
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this.callArgs && this.callArgs.onCallEnd()
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this.callConnection[0] && this.callConnection[0].close()
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this.store.update({ calling: CallingState.NoCall })
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this.callArgs = null
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this.toggleAnnotation(false)
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}
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public initiateCallEnd = async () => {
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this.socket?.emit("call_end", appStore.getState().getIn([ 'user', 'account', 'name']))
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this.handleCallEnd()
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const remoteControl = this.store.get().remoteControl
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if (remoteControl === RemoteControlStatus.Enabled) {
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this.socket.emit("release_control")
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this.toggleRemoteControl(false)
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}
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}
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private onRemoteCallEnd = () => {
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if (this.store.get().calling === CallingState.Requesting) {
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this.callArgs && this.callArgs.onReject()
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this.callConnection[0] && this.callConnection[0].close()
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this.store.update({ calling: CallingState.NoCall })
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this.callArgs = null
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this.toggleAnnotation(false)
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} else {
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this.handleCallEnd()
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}
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}
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private callArgs: {
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localStream: LocalStream,
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onStream: (s: MediaStream)=>void,
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onCallEnd: () => void,
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onReject: () => void,
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onError?: ()=> void,
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} | null = null
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public setCallArgs(
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localStream: LocalStream,
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onStream: (s: MediaStream)=>void,
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onCallEnd: () => void,
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onReject: () => void,
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onError?: (e?: any)=> void,
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) {
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this.callArgs = {
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localStream,
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onStream,
|
|
onCallEnd,
|
|
onReject,
|
|
onError,
|
|
}
|
|
}
|
|
|
|
public call(thirdPartyPeers?: string[]): { end: () => void } {
|
|
if (thirdPartyPeers && thirdPartyPeers.length > 0) {
|
|
this.addPeerCall(thirdPartyPeers)
|
|
} else {
|
|
this._callSessionPeer()
|
|
}
|
|
return {
|
|
end: this.initiateCallEnd,
|
|
}
|
|
}
|
|
|
|
/** Connecting to the other agents that are already
|
|
* in the call with the user
|
|
*/
|
|
public addPeerCall(thirdPartyPeers: string[]) {
|
|
thirdPartyPeers.forEach(peer => this._peerConnection(peer))
|
|
}
|
|
|
|
/** Connecting to the app user */
|
|
private _callSessionPeer() {
|
|
if (![CallingState.NoCall, CallingState.Reconnecting].includes(this.store.get().calling)) { return }
|
|
this.store.update({ calling: CallingState.Connecting })
|
|
this._peerConnection(this.peerID);
|
|
this.socket && this.socket.emit("_agent_name", appStore.getState().getIn([ 'user', 'account', 'name']))
|
|
}
|
|
|
|
private async _peerConnection(remotePeerId: string) {
|
|
try {
|
|
const peer = await this.getPeer();
|
|
const call = peer.call(remotePeerId, this.callArgs.localStream.stream)
|
|
this.callConnection.push(call)
|
|
|
|
this.callArgs.localStream.onVideoTrack(vTrack => {
|
|
const sender = call.peerConnection.getSenders().find(s => s.track?.kind === "video")
|
|
if (!sender) {
|
|
console.warn("No video sender found")
|
|
return
|
|
}
|
|
sender.replaceTrack(vTrack)
|
|
})
|
|
|
|
call.on('stream', stream => {
|
|
this.store.get().calling !== CallingState.OnCall && this.store.update({ calling: CallingState.OnCall })
|
|
|
|
this.videoStreams[call.peer] = stream.getVideoTracks()[0]
|
|
|
|
this.callArgs && this.callArgs.onStream(stream)
|
|
});
|
|
// call.peerConnection.addEventListener("track", e => console.log('newtrack',e.track))
|
|
|
|
call.on("close", this.onRemoteCallEnd)
|
|
call.on("error", (e) => {
|
|
console.error("PeerJS error (on call):", e)
|
|
this.initiateCallEnd();
|
|
this.callArgs && this.callArgs.onError && this.callArgs.onError();
|
|
});
|
|
} catch (e) {
|
|
console.error(e)
|
|
}
|
|
}
|
|
|
|
toggleAnnotation(enable?: boolean) {
|
|
// if (this.store.get().calling !== CallingState.OnCall) { return }
|
|
if (typeof enable !== "boolean") {
|
|
enable = !!this.store.get().annotating
|
|
}
|
|
if (enable && !this.annot) {
|
|
const annot = this.annot = new AnnotationCanvas()
|
|
annot.mount(this.screen.overlay)
|
|
annot.canvas.addEventListener("mousedown", e => {
|
|
if (!this.socket) { return }
|
|
const data = this.screen.getInternalViewportCoordinates(e)
|
|
annot.start([ data.x, data.y ])
|
|
this.socket.emit("startAnnotation", [ data.x, data.y ])
|
|
})
|
|
annot.canvas.addEventListener("mouseleave", () => {
|
|
if (!this.socket) { return }
|
|
annot.stop()
|
|
this.socket.emit("stopAnnotation")
|
|
})
|
|
annot.canvas.addEventListener("mouseup", () => {
|
|
if (!this.socket) { return }
|
|
annot.stop()
|
|
this.socket.emit("stopAnnotation")
|
|
})
|
|
annot.canvas.addEventListener("mousemove", e => {
|
|
if (!this.socket || !annot.isPainting()) { return }
|
|
|
|
const data = this.screen.getInternalViewportCoordinates(e)
|
|
annot.move([ data.x, data.y ])
|
|
this.socket.emit("moveAnnotation", [ data.x, data.y ])
|
|
})
|
|
this.store.update({ annotating: true })
|
|
} else if (!enable && !!this.annot) {
|
|
this.annot.remove()
|
|
this.annot = null
|
|
this.store.update({ annotating: false })
|
|
}
|
|
}
|
|
|
|
toggleVideoLocalStream(enabled: boolean) {
|
|
this.getPeer().then((peer) => {
|
|
this.socket.emit('videofeed', { streamId: peer.id, enabled })
|
|
})
|
|
}
|
|
|
|
private annot: AnnotationCanvas | null = null
|
|
|
|
/* ==== Cleaning ==== */
|
|
private cleaned: boolean = false
|
|
clean() {
|
|
this.cleaned = true // sometimes cleaned before modules loaded
|
|
this.initiateCallEnd();
|
|
if (this._peer) {
|
|
console.log("destroying peer...")
|
|
const peer = this._peer; // otherwise it calls reconnection on data chan close
|
|
this._peer = null;
|
|
peer.disconnect();
|
|
peer.destroy();
|
|
}
|
|
if (this.socket) {
|
|
this.socket.close()
|
|
document.removeEventListener('visibilitychange', this.onVisChange)
|
|
}
|
|
if (this.annot) {
|
|
this.annot.remove()
|
|
this.annot = null
|
|
}
|
|
}
|
|
}
|