Rocket.Chat/client/sidebar/header/UserAvatarButton.js

import { css } from '@rocket.chat/css-in-js';
import { Box } from '@rocket.chat/fuselage';
import { useMutableCallback } from '@rocket.chat/fuselage-hooks';
import { Meteor } from 'meteor/meteor';
import React, { memo } from 'react';

import { popover } from '../../../app/ui-utils/client';
import { UserStatus } from '../../components/UserStatus';
import UserAvatar from '../../components/avatar/UserAvatar';
import { useSetting } from '../../contexts/SettingsContext';

const openDropdown = (e, user, onClose, allowAnonymousRead) => {
	if (!(Meteor.userId() == null && allowAnonymousRead)) {
		popover.open({
			template: 'UserDropdown',
			currentTarget: e.currentTarget,
			data: {
				user,
				onClose,
			},
			offsetVertical: e.currentTarget.clientHeight + 10,
		});
	}
};

const UserAvatarButton = ({ user = {} }) => {
	const { _id: uid, status = !uid && 'online', username = 'Anonymous', avatarETag } = user;

	const allowAnonymousRead = useSetting('Accounts_AllowAnonymousRead');

	const onClose = useMutableCallback(() => popover.close());

	const handleClick = useMutableCallback(
		(e) => uid && openDropdown(e, user, onClose, allowAnonymousRead),
	);

	return (
		<Box
			position='relative'
			onClick={handleClick}
			className={css`
				cursor: pointer;
			`}
			data-qa='sidebar-avatar-button'
		>
			<UserAvatar size='x24' username={username} etag={avatarETag} />
			<Box
				className={css`
					bottom: 0;
					right: 0;
				`}
				justifyContent='center'
				alignItems='center'
				display='flex'
				overflow='hidden'
				size='x12'
				borderWidth='x2'
				position='absolute'
				bg='neutral-200'
				borderColor='neutral-200'
				borderRadius='full'
				mie='neg-x2'
				mbe='neg-x2'
			>
				<UserStatus small status={status} />
			</Box>
		</Box>
	);
};

export default memo(UserAvatarButton);