bigbuffet-rw/app/soapbox/features/chats/components/chat-list.tsx
2022-08-31 13:22:18 -04:00

95 lines
2.9 KiB
TypeScript

import classNames from 'classnames';
import React, { useRef, useState } from 'react';
import { useDispatch } from 'react-redux';
import { Virtuoso } from 'react-virtuoso';
import { fetchChats } from 'soapbox/actions/chats';
import PullToRefresh from 'soapbox/components/pull-to-refresh';
import { Stack } from 'soapbox/components/ui';
import PlaceholderChat from 'soapbox/features/placeholder/components/placeholder-chat';
import { useChats } from 'soapbox/queries/chats';
import Chat from './chat';
import Blankslate from './chat-pane/blankslate';
interface IChatList {
onClickChat: (chat: any) => void,
useWindowScroll?: boolean,
}
const ChatList: React.FC<IChatList> = ({ onClickChat, useWindowScroll = false }) => {
const dispatch = useDispatch();
const chatListRef = useRef(null);
const { chatsQuery: { data: chats, isFetching, hasNextPage, fetchNextPage } } = useChats();
const [isNearBottom, setNearBottom] = useState<boolean>(false);
const [isNearTop, setNearTop] = useState<boolean>(true);
const isEmpty = chats?.length === 0;
const handleLoadMore = () => {
if (hasNextPage && !isFetching) {
fetchNextPage();
}
};
const handleRefresh = () => {
return dispatch(fetchChats()) as any;
};
const renderEmpty = () => {
if (isFetching) {
return (
<Stack space={2}>
<PlaceholderChat />
<PlaceholderChat />
<PlaceholderChat />
</Stack>
);
} else {
return <Blankslate />;
}
};
return (
<div className='relative h-full'>
<PullToRefresh onRefresh={handleRefresh}>
{isEmpty ? renderEmpty() : (
<Virtuoso
ref={chatListRef}
atTopStateChange={(atTop) => setNearTop(atTop)}
atBottomStateChange={(atBottom) => setNearBottom(atBottom)}
useWindowScroll={useWindowScroll}
data={chats}
endReached={handleLoadMore}
itemContent={(_index, chat) => (
<Chat chat={chat} onClick={onClickChat} />
)}
components={{
ScrollSeekPlaceholder: () => <PlaceholderChat />,
// Footer: () => hasNextPage ? <Spinner withText={false} /> : null,
EmptyPlaceholder: renderEmpty,
}}
/>
)}
</PullToRefresh>
<div
className={classNames('inset-x-0 top-0 flex rounded-t-lg justify-center bg-gradient-to-b from-white pb-12 pt-8 pointer-events-none dark:from-gray-900 absolute transition-opacity duration-500', {
'opacity-0': isNearTop,
'opacity-100': !isNearTop,
})}
/>
<div
className={classNames('inset-x-0 bottom-0 flex rounded-b-lg justify-center bg-gradient-to-t from-white pt-12 pb-8 pointer-events-none dark:from-gray-900 absolute transition-opacity duration-500', {
'opacity-0': isNearBottom,
'opacity-100': !isNearBottom,
})}
/>
</div>
);
};
export default ChatList;