jiti-meet/react/features/chat/components/web/ChatCounter.js

62 lines
1.2 KiB
JavaScript

// @flow
import React, { Component } from 'react';
import { connect } from '../../../base/redux';
import { getUnreadCount } from '../../functions';
/**
* The type of the React {@code Component} props of {@link ChatCounter}.
*/
type Props = {
/**
* The value of to display as a count.
*/
_count: number
};
/**
* Implements a React {@link Component} which displays a count of the number of
* unread chat messages.
*
* @extends Component
*/
class ChatCounter extends Component<Props> {
/**
* Implements React's {@link Component#render()}.
*
* @inheritdoc
* @returns {ReactElement}
*/
render() {
return (
<span className = 'badge-round'>
<span>
{ this.props._count || null }
</span>
</span>
);
}
}
/**
* Maps (parts of) the Redux state to the associated {@code ChatCounter}'s
* props.
*
* @param {Object} state - The Redux state.
* @private
* @returns {{
* _count: number
* }}
*/
function _mapStateToProps(state) {
return {
_count: getUnreadCount(state)
};
}
export default connect(_mapStateToProps)(ChatCounter);