TelegramPWA/src/components/left/search/MediaResults.tsx
2021-06-12 17:20:19 +03:00

141 lines
4.2 KiB
TypeScript

import React, {
FC, memo, useCallback, useMemo,
} from '../../../lib/teact/teact';
import { withGlobal } from '../../../lib/teact/teactn';
import { GlobalActions } from '../../../global/types';
import { LoadMoreDirection, MediaViewerOrigin } from '../../../types';
import { MEMO_EMPTY_ARRAY } from '../../../util/memo';
import { SLIDE_TRANSITION_DURATION } from '../../../config';
import { createMapStateToProps, StateProps } from './helpers/createMapStateToProps';
import { pick } from '../../../util/iteratees';
import buildClassName from '../../../util/buildClassName';
import { throttle } from '../../../util/schedulers';
import useLang from '../../../hooks/useLang';
import useAsyncRendering from '../../right/hooks/useAsyncRendering';
import InfiniteScroll from '../../ui/InfiniteScroll';
import Media from '../../common/Media';
import ChatMessage from './ChatMessage';
import NothingFound from '../../common/NothingFound';
import Loading from '../../ui/Loading';
export type OwnProps = {
searchQuery?: string;
};
type DispatchProps = Pick<GlobalActions, ('searchMessagesGlobal' | 'openMediaViewer')>;
const CURRENT_TYPE = 'media';
const runThrottled = throttle((cb) => cb(), 500, true);
const MediaResults: FC<OwnProps & StateProps & DispatchProps> = ({
searchQuery,
searchChatId,
isLoading,
globalMessagesByChatId,
foundIds,
lastSyncTime,
searchMessagesGlobal,
openMediaViewer,
}) => {
const lang = useLang();
const handleLoadMore = useCallback(({ direction }: { direction: LoadMoreDirection }) => {
if (lastSyncTime && direction === LoadMoreDirection.Backwards) {
runThrottled(() => {
searchMessagesGlobal({
type: CURRENT_TYPE,
query: searchQuery,
chatId: searchChatId,
});
});
}
}, [lastSyncTime, searchMessagesGlobal, searchQuery, searchChatId]);
const foundMessages = useMemo(() => {
if (!foundIds || !globalMessagesByChatId) {
return MEMO_EMPTY_ARRAY;
}
return foundIds.map((id) => {
const [chatId, messageId] = id.split('_').map(Number);
return globalMessagesByChatId[chatId] && globalMessagesByChatId[chatId].byId[messageId];
}).filter(Boolean);
}, [globalMessagesByChatId, foundIds]);
const handleSelectMedia = useCallback((messageId: number, chatId: number) => {
openMediaViewer({
chatId,
messageId,
origin: MediaViewerOrigin.SearchResult,
});
}, [openMediaViewer]);
function renderGallery() {
return (
<div className="media-list" dir={lang.isRtl ? 'rtl' : undefined}>
{foundMessages.map((message) => (
<Media
key={message.id}
idPrefix="search-media"
message={message}
onClick={handleSelectMedia}
/>
))}
</div>
);
}
function renderSearchResult() {
return foundMessages.map((message) => (
<ChatMessage
key={message.id}
chatId={message.chatId}
message={message}
/>
));
}
const canRenderContents = useAsyncRendering([searchQuery], SLIDE_TRANSITION_DURATION) && !isLoading;
const isMediaGrid = canRenderContents && foundIds && foundIds.length > 0 && !searchQuery;
const isMessageList = canRenderContents && foundIds && foundIds.length > 0 && searchQuery;
const classNames = buildClassName(
'search-content custom-scroll',
isMessageList && 'chat-list',
);
return (
<div className="LeftSearch">
<InfiniteScroll
className={classNames}
items={foundMessages}
itemSelector={!searchQuery ? '.Media' : '.ListItem'}
onLoadMore={handleLoadMore}
noFastList
>
{!canRenderContents && <Loading />}
{canRenderContents && (!foundIds || foundIds.length === 0) && (
<NothingFound
text={lang('ChatList.Search.NoResults')}
description={lang('ChatList.Search.NoResultsDescription')}
/>
)}
{isMediaGrid && renderGallery()}
{isMessageList && renderSearchResult()}
</InfiniteScroll>
</div>
);
};
export default memo(withGlobal<OwnProps>(
createMapStateToProps(CURRENT_TYPE),
(setGlobal, actions): DispatchProps => pick(actions, [
'searchMessagesGlobal',
'openMediaViewer',
]),
)(MediaResults));