bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/muted-alert/component.jsx

128 lines
3.2 KiB
JavaScript

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { FormattedMessage } from 'react-intl';
import hark from 'hark';
import Icon from '/imports/ui/components/icon/component';
import cx from 'classnames';
import { styles } from './styles';
const MUTE_ALERT_CONFIG = Meteor.settings.public.app.mutedAlert;
const propTypes = {
inputStream: PropTypes.objectOf(PropTypes.any).isRequired,
isPresenter: PropTypes.bool.isRequired,
isViewer: PropTypes.bool.isRequired,
muted: PropTypes.bool.isRequired,
};
class MutedAlert extends Component {
constructor(props) {
super(props);
this.state = {
visible: false,
};
this.inputStream = null;
this.speechEvents = null;
this.timer = null;
this.cloneMediaStream = this.cloneMediaStream.bind(this);
this.resetTimer = this.resetTimer.bind(this);
}
componentDidMount() {
this._isMounted = true;
if (!this.hasValidInputStream()) return;
this.cloneMediaStream();
if (this.inputStream) {
const { interval, threshold, duration } = MUTE_ALERT_CONFIG;
this.speechEvents = hark(this.inputStream, { interval, threshold });
this.speechEvents.on('speaking', () => {
this.resetTimer();
if (this._isMounted) this.setState({ visible: true });
});
this.speechEvents.on('stopped_speaking', () => {
if (this._isMounted) {
this.timer = setTimeout(() => this.setState(
{ visible: false },
), duration);
}
});
}
}
componentDidUpdate() {
this.cloneMediaStream();
}
componentWillUnmount() {
this._isMounted = false;
if (this.speechEvents) this.speechEvents.stop();
if (this.inputStream) {
this.inputStream.getTracks().forEach((t) => t.stop());
}
this.resetTimer();
}
cloneMediaStream() {
if (this.inputStream) return;
const { inputStream } = this.props;
if (inputStream) {
this.inputStream = inputStream.clone();
this.enableInputStreamAudioTracks(this.inputStream);
}
}
/* eslint-disable no-param-reassign */
enableInputStreamAudioTracks() {
if (!this.inputStream) return;
this.inputStream.getAudioTracks().forEach((t) => { t.enabled = true; });
}
/* eslint-enable no-param-reassign */
resetTimer() {
if (this.timer) clearTimeout(this.timer);
this.timer = null;
}
hasValidInputStream() {
const { inputStream } = this.props;
if (inputStream
&& (typeof inputStream.getAudioTracks === 'function')
&& (inputStream.getAudioTracks().length > 0)
) return true;
return false;
}
render() {
const { isViewer, isPresenter, muted } = this.props;
const { visible } = this.state;
const style = {};
style[styles.alignForMod] = !isViewer || isPresenter;
return visible && muted ? (
<div className={cx(styles.muteWarning, style)}>
<span>
<FormattedMessage
id="app.muteWarning.label"
description="Warning when someone speaks while muted"
values={{
0: <Icon iconName="mute" />,
}}
/>
</span>
</div>
) : null;
}
}
MutedAlert.propTypes = propTypes;
export default MutedAlert;