Component to show screensharing

2018-03-04 13:38:38 +01:00
parent 638d548b9f
commit a0efc15422
2 changed files with 306 additions and 0 deletions
@@ -0,0 +1,160 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import classnames from 'classnames';
+import Spinner from 'react-spinner';
+
+export default class PeerScreenView extends React.Component
+{
+	constructor(props)
+	{
+		super(props);
+
+		this.state =
+		{
+			videoWidth  : null,
+			videoHeight : null
+		};
+
+		// Latest received video track.
+		// @type {MediaStreamTrack}
+		this._videoTrack = null;
+
+		// Periodic timer for showing video resolution.
+		this._videoResolutionTimer = null;
+	}
+
+	render()
+	{
+		const {
+			isMe,
+			videoVisible,
+			videoProfile,
+			videoCodec
+		} = this.props;
+
+		const {
+			videoWidth,
+			videoHeight
+		} = this.state;
+
+		return (
+			<div data-component='PeerScreenView'>
+				<div className='info'>
+					<div className={classnames('media', { 'is-me': isMe })}>
+						<div className='box'>
+							{videoCodec ?
+								<p className='codec'>{videoCodec} {videoProfile}</p>
+								:null
+							}
+
+							{(videoVisible && videoWidth !== null) ?
+								<p className='resolution'>{videoWidth}x{videoHeight}</p>
+								:null
+							}
+						</div>
+					</div>
+				</div>
+
+				<video
+					ref='video'
+					className={classnames({
+						hidden  : !videoVisible,
+						'is-me' : isMe,
+						loading : videoProfile === 'none'
+					})}
+					autoPlay
+					muted={isMe}
+				/>
+
+				{videoProfile === 'none' ?
+					<div className='spinner-container'>
+						<Spinner />
+					</div>
+					:null
+				}
+			</div>
+		);
+	}
+
+	componentDidMount()
+	{
+		const { videoTrack } = this.props;
+
+		this._setTracks(videoTrack);
+	}
+
+	componentWillUnmount()
+	{
+		clearInterval(this._videoResolutionTimer);
+	}
+
+	componentWillReceiveProps(nextProps)
+	{
+		const { videoTrack } = nextProps;
+
+		this._setTracks(videoTrack);
+	}
+
+	_setTracks(videoTrack)
+	{
+		if (this._videoTrack === videoTrack)
+			return;
+
+		this._videoTrack = videoTrack;
+
+		clearInterval(this._videoResolutionTimer);
+		this._hideVideoResolution();
+
+		const { video } = this.refs;
+
+		if (videoTrack)
+		{
+			const stream = new MediaStream;
+
+			if (videoTrack)
+				stream.addTrack(videoTrack);
+
+			video.srcObject = stream;
+
+			if (videoTrack)
+				this._showVideoResolution();
+		}
+		else
+		{
+			video.srcObject = null;
+		}
+	}
+
+	_showVideoResolution()
+	{
+		this._videoResolutionTimer = setInterval(() =>
+		{
+			const { videoWidth, videoHeight } = this.state;
+			const { video } = this.refs;
+
+			// Don't re-render if nothing changed.
+			if (video.videoWidth === videoWidth && video.videoHeight === videoHeight)
+				return;
+
+			this.setState(
+				{
+					videoWidth  : video.videoWidth,
+					videoHeight : video.videoHeight
+				});
+		}, 1000);
+	}
+
+	_hideVideoResolution()
+	{
+		this.setState({ videoWidth: null, videoHeight: null });
+	}
+}
+
+PeerScreenView.propTypes =
+{
+	isMe         : PropTypes.bool,
+	videoTrack   : PropTypes.any,
+	videoVisible : PropTypes.bool.isRequired,
+	videoProfile : PropTypes.string,
+	videoCodec   : PropTypes.string
+};