73 lines
2.2 KiB
TypeScript
73 lines
2.2 KiB
TypeScript
import debounce from 'lodash/debounce';
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import React, { useRef } from 'react';
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import { FormattedMessage } from 'react-intl';
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import { expandConversations } from 'soapbox/actions/conversations';
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import ScrollableList from 'soapbox/components/scrollable-list';
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import { useAppDispatch, useAppSelector } from 'soapbox/hooks';
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import Conversation from './conversation';
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import type { VirtuosoHandle } from 'react-virtuoso';
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const ConversationsList: React.FC = () => {
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const dispatch = useAppDispatch();
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const ref = useRef<VirtuosoHandle>(null);
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const conversations = useAppSelector((state) => state.conversations.items);
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const isLoading = useAppSelector((state) => state.conversations.isLoading);
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const getCurrentIndex = (id: string) => conversations.findIndex(x => x.id === id);
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const handleMoveUp = (id: string) => {
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const elementIndex = getCurrentIndex(id) - 1;
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selectChild(elementIndex);
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};
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const handleMoveDown = (id: string) => {
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const elementIndex = getCurrentIndex(id) + 1;
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selectChild(elementIndex);
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};
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const selectChild = (index: number) => {
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ref.current?.scrollIntoView({
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index,
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behavior: 'smooth',
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done: () => {
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const element = document.querySelector<HTMLDivElement>(`#direct-list [data-index="${index}"] .focusable`);
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if (element) {
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element.focus();
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}
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},
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});
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};
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const handleLoadOlder = debounce(() => {
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const maxId = conversations.getIn([-1, 'id']);
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if (maxId) dispatch(expandConversations({ maxId }));
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}, 300, { leading: true });
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return (
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<ScrollableList
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onLoadMore={handleLoadOlder}
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id='direct-list'
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scrollKey='direct'
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ref={ref}
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isLoading={isLoading}
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showLoading={isLoading && conversations.size === 0}
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emptyMessage={<FormattedMessage id='empty_column.direct' defaultMessage="You don't have any direct messages yet. When you send or receive one, it will show up here." />}
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>
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{conversations.map((item: any) => (
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<Conversation
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key={item.id}
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conversationId={item.id}
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onMoveUp={handleMoveUp}
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onMoveDown={handleMoveDown}
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/>
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))}
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</ScrollableList>
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);
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};
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export default ConversationsList;
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