jiti-meet/react/features/conference/components/web/ParticipantsCount.js

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2019-10-31 06:14:15 +00:00
// @flow
import React, { PureComponent } from 'react';
import type { Dispatch } from 'redux';
import { openDialog } from '../../../base/dialog';
import { IconUserGroups } from '../../../base/icons';
import { Label } from '../../../base/label';
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import { getParticipantCount } from '../../../base/participants';
import { connect } from '../../../base/redux';
import { SpeakerStats } from '../../../speaker-stats';
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/**
* The type of the React {@code Component} props of {@link ParticipantsCount}.
*/
type Props = {
/**
* Number of the conference participants.
*/
count: string,
/**
* Conference data.
*/
conference: Object,
/**
* Invoked to open Speaker stats.
*/
dispatch: Dispatch<any>,
};
/**
* ParticipantsCount react component.
* Displays the number of participants and opens Speaker stats on click.
*
* @class ParticipantsCount
*/
class ParticipantsCount extends PureComponent<Props> {
/**
* Initializes a new ParticipantsCount instance.
*
* @param {Object} props - The read-only properties with which the new
* instance is to be initialized.
*/
constructor(props: Props) {
super(props);
this._onClick = this._onClick.bind(this);
}
_onClick: () => void;
/**
* Callback invoked to display {@code SpeakerStats}.
*
* @private
* @returns {void}
*/
_onClick() {
const { dispatch, conference } = this.props;
dispatch(openDialog(SpeakerStats, { conference }));
}
/**
* Implements React's {@link PureComponent#render()}.
*
* @inheritdoc
* @returns {ReactElement}
*/
render() {
return (
<div
className = 'participants-count'
onClick = { this._onClick }>
<Label
className = 'label--white'
icon = { IconUserGroups }
text = { this.props.count } />
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</div>
);
}
}
/**
* Maps (parts of) the Redux state to the associated props for the
* {@code ParticipantsCount} component.
*
* @param {Object} state - The Redux state.
* @private
* @returns {Props}
*/
function mapStateToProps(state) {
return {
conference: state['features/base/conference'].conference,
count: getParticipantCount(state)
};
}
export default connect(mapStateToProps)(ParticipantsCount);