jiti-meet/react/features/base/testing/components/TestConnectionInfo.js

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// @flow
import React, { Component, Fragment } from 'react';
import { getLocalParticipant } from '../../participants';
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import { connect } from '../../redux';
// FIXME this imports feature to 'base'
import { statsEmitter } from '../../../connection-indicator';
import { TestHint } from './index';
import { isTestModeEnabled } from '../functions';
/**
* Defines the TestConnectionInfo's properties.
*/
type Props = {
/**
* The JitsiConference's connection state. It's the lib-jitsi-meet's event
* name converted to a string directly. At the time of this writing these
* are the possible values:
* 'conference.connectionEstablished'
* 'conference.connectionInterrupted'
* 'conference.connectionRestored'
*/
_conferenceConnectionState: string,
/**
* This will be a boolean converted to a string. The value will be 'true'
* once the conference is joined (the XMPP MUC room to be specific).
*/
_conferenceJoinedState: string,
/**
* The local participant's ID. Required to be able to observe the local RTP
* stats.
*/
_localUserId: string,
/**
* Indicates whether or not the test mode is currently on. Otherwise the
* TestConnectionInfo component will not render.
*/
_testMode: boolean
}
/**
* Describes the TestConnectionInfo's state.
*/
type State = {
/**
* The RTP stats section.
*/
stats: {
/**
* The local bitrate.
*/
bitrate: {
/**
* The local download RTP bitrate.
*/
download: number,
/**
* The local upload RTP bitrate.
*/
upload: number
}
}
}
/**
* The component will expose some of the app state to the jitsi-meet-torture
* through the UI accessibility layer which is visible to the tests. The Web
* tests currently will execute JavaScript and access globals variables to learn
* this information, but there's no such option on React Native(maybe that's
* a good thing).
*/
class TestConnectionInfo extends Component<Props, State> {
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_onStatsUpdated: Object => void;
/**
* Initializes new <tt>TestConnectionInfo</tt> instance.
*
* @param {Object} props - The read-only properties with which the new
* instance is to be initialized.
*/
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constructor(props: Props) {
super(props);
this._onStatsUpdated = this._onStatsUpdated.bind(this);
this.state = {
stats: {
bitrate: {
download: 0,
upload: 0
}
}
};
}
/**
* The {@link statsEmitter} callback hoked up for the local participant.
*
* @param {Object} stats - These are the RTP stats. Look in
* the lib-jitsi-meet for more details on the actual structure or add
* a console print and figure out there.
* @returns {void}
* @private
*/
_onStatsUpdated(stats = {}) {
this.setState({
stats: {
bitrate: {
download: stats.bitrate.download,
upload: stats.bitrate.upload
}
}
});
}
/**
* Starts listening for the local RTP stat updates.
*
* @inheritdoc
* returns {void}
*/
componentDidMount() {
statsEmitter.subscribeToClientStats(
this.props._localUserId, this._onStatsUpdated);
}
/**
* Updates which user's stats are being listened to (the local participant's
* id changes).
*
* @inheritdoc
* returns {void}
*/
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componentDidUpdate(prevProps: Props) {
if (prevProps._localUserId !== this.props._localUserId) {
statsEmitter.unsubscribeToClientStats(
prevProps._localUserId, this._onStatsUpdated);
statsEmitter.subscribeToClientStats(
this.props._localUserId, this._onStatsUpdated);
}
}
/**
* Removes the local stats listener.
*
* @private
* @returns {void}
*/
componentWillUnmount() {
statsEmitter.unsubscribeToClientStats(
this.props._localUserId, this._onStatsUpdated);
}
/**
* Renders the component if the app is currently running in the test mode
* (config.testing.testMode == true).
*
* @returns {ReactElement|null}
*/
render() {
if (!this.props._testMode) {
return null;
}
return (
<Fragment accessible = { false } >
<TestHint
id = 'org.jitsi.meet.conference.connectionState'
value = { this.props._conferenceConnectionState } />
<TestHint
id = 'org.jitsi.meet.conference.joinedState'
value = { this.props._conferenceJoinedState } />
<TestHint
id = 'org.jitsi.meet.stats.rtp'
value = { JSON.stringify(this.state.stats) } />
</Fragment>
);
}
}
/**
* Maps (parts of) the Redux state to the associated TestConnectionInfo's props.
*
* @param {Object} state - The Redux state.
* @private
* @returns {{
* _conferenceConnectionState: string,
* _conferenceJoinedState: string,
* _localUserId: string,
* _testMode: boolean
* }}
*/
function _mapStateToProps(state) {
const conferenceJoined
= Boolean(state['features/base/conference'].conference);
const localParticipant = getLocalParticipant(state);
return {
_conferenceConnectionState: state['features/testing'].connectionState,
_conferenceJoinedState: conferenceJoined.toString(),
_localUserId: localParticipant && localParticipant.id,
_testMode: isTestModeEnabled(state)
};
}
export default connect(_mapStateToProps)(TestConnectionInfo);