@openreplay/tracker-assist/lib/LocalStream.js

Tracker plugin for screen assistance through the WebRTC

export default function RequestLocalStream(pc, toggleVideoCb) {
    return navigator.mediaDevices
        .getUserMedia({ audio: true, video: false })
        .then((stream) => {
        const aTrack = stream.getAudioTracks()[0];
        if (!aTrack) {
            throw new Error("No audio tracks provided");
        }
        stream.getTracks().forEach((track) => {
            pc.addTrack(track, stream);
        });
        return new _LocalStream(stream, pc, toggleVideoCb);
    });
}
class _LocalStream {
    constructor(stream, pc, toggleVideoCb) {
        this.mediaRequested = false;
        this.onVideoTrackCb = null;
        this.stream = stream;
        this.pc = pc;
        this.toggleVideoCb = toggleVideoCb;
    }
    toggleVideo() {
        const videoTracks = this.stream.getVideoTracks();
        if (!this.mediaRequested) {
            return navigator.mediaDevices
                .getUserMedia({ video: true })
                .then((vStream) => {
                const vTrack = vStream.getVideoTracks()[0];
                if (!vTrack) {
                    throw new Error("No video track provided");
                }
                this.pc.addTrack(vTrack, this.stream);
                this.stream.addTrack(vTrack);
                if (this.toggleVideoCb) {
                    this.toggleVideoCb();
                }
                this.mediaRequested = true;
                if (this.onVideoTrackCb) {
                    this.onVideoTrackCb(vTrack);
                }
                return true;
            })
                .catch((e) => {
                // TODO: log
                return false;
            });
        }
        else {
            videoTracks.forEach((track) => {
                track.enabled = !track.enabled;
            });
        }
        return Promise.resolve(videoTracks[0].enabled);
    }
    toggleAudio() {
        let enabled = true;
        this.stream.getAudioTracks().forEach((track) => {
            track.enabled = enabled = enabled && !track.enabled;
        });
        return enabled;
    }
    onVideoTrack(cb) {
        this.onVideoTrackCb = cb;
    }
    stop() {
        this.stream.getTracks().forEach((t) => t.stop());
    }
}