theluyuan
38ba663466
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Close stale issues and PRs / stale (push) Has been cancelled
75 lines
1.6 KiB
TypeScript
75 lines
1.6 KiB
TypeScript
import React, { Component } from 'react';
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import { connect } from 'react-redux';
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import { IReduxState } from '../../../app/types';
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import { getUnreadPollCount } from '../../../polls/functions';
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import { getUnreadCount } from '../../functions';
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/**
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* The type of the React {@code Component} props of {@link ChatCounter}.
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*/
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interface IProps {
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/**
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* The value of to display as a count.
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*/
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_count: number;
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/**
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* True if the chat window should be rendered.
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*/
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_isOpen: boolean;
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}
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/**
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* Implements a React {@link Component} which displays a count of the number of
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* unread chat messages.
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*
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* @augments Component
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*/
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class ChatCounter extends Component<IProps> {
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/**
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* Implements React's {@link Component#render()}.
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*
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* @inheritdoc
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* @returns {ReactElement}
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*/
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override render() {
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return (
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<span className = 'badge-round'>
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<span>
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{
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!this.props._isOpen
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&& (this.props._count || null)
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}
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</span>
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</span>
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);
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}
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}
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/**
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* Maps (parts of) the Redux state to the associated {@code ChatCounter}'s
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* props.
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*
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* @param {Object} state - The Redux state.
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* @private
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* @returns {{
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* _count: number
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* }}
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*/
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function _mapStateToProps(state: IReduxState) {
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const { isOpen } = state['features/chat'];
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return {
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_count: getUnreadCount(state) + getUnreadPollCount(state),
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_isOpen: isOpen
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};
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}
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export default connect(_mapStateToProps)(ChatCounter);
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