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diff --git a/lib/selectors/chat-selectors.js b/lib/selectors/chat-selectors.js
--- a/lib/selectors/chat-selectors.js
+++ b/lib/selectors/chat-selectors.js
@@ -79,7 +79,7 @@
);
}
-type ChatThreadItemLoader = {
+export type ChatThreadItemLoader = {
+threadInfo: ThreadInfo,
+lastUpdatedAtLeastTimeIncludingSidebars: number,
+lastUpdatedAtMostTimeIncludingSidebars: number,
@@ -185,15 +185,36 @@
return useChatThreadItems(filteredThreadInfos);
}
-const sortFunc = _orderBy('lastUpdatedTimeIncludingSidebars')('desc');
-function useChatThreadItems(
+function useFlattenedChatListLoaders(): $ReadOnlyArray<ChatThreadItemLoader> {
+ return useFilteredChatListLoaders(threadInChatList);
+}
+
+function useFilteredChatListLoaders(
+ filterFunction: (threadInfo: ?(ThreadInfo | RawThreadInfo)) => boolean,
+): $ReadOnlyArray<ChatThreadItemLoader> {
+ const threadInfos = useSelector(threadInfoSelector);
+ const filteredThreadInfos = React.useMemo(
+ () => Object.values(threadInfos).filter(filterFunction),
+ [threadInfos, filterFunction],
+ );
+ return useChatThreadItemLoaders(filteredThreadInfos);
+}
+
+function useChatThreadItemLoaders(
threadInfos: $ReadOnlyArray<ThreadInfo>,
-): $ReadOnlyArray<ChatThreadItem> {
+): $ReadOnlyArray<ChatThreadItemLoader> {
const getChatThreadItemLoader = useGetChatThreadItemLoader();
- const chatThreadItemLoaders = React.useMemo(
+ return React.useMemo(
() => threadInfos.map(getChatThreadItemLoader),
[threadInfos, getChatThreadItemLoader],
);
+}
+
+const sortFunc = _orderBy('lastUpdatedTimeIncludingSidebars')('desc');
+function useChatThreadItems(
+ threadInfos: $ReadOnlyArray<ThreadInfo>,
+): $ReadOnlyArray<ChatThreadItem> {
+ const chatThreadItemLoaders = useChatThreadItemLoaders(threadInfos);
const initialChatThreadItems = React.useMemo(
() => chatThreadItemLoaders.map(loader => loader.initialChatThreadItem),
@@ -756,6 +777,7 @@
messageListData,
useFlattenedChatListData,
useFilteredChatListData,
+ useFlattenedChatListLoaders,
useChatThreadItems,
useMessageListData,
};
diff --git a/native/chat/chat-thread-list.react.js b/native/chat/chat-thread-list.react.js
--- a/native/chat/chat-thread-list.react.js
+++ b/native/chat/chat-thread-list.react.js
@@ -26,7 +26,7 @@
import { useThreadListSearch } from 'lib/hooks/thread-search-hooks.js';
import {
type ChatThreadItem,
- useFlattenedChatListData,
+ useFlattenedChatListLoaders,
} from 'lib/selectors/chat-selectors.js';
import {
createPendingThread,
@@ -35,6 +35,7 @@
import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
import { threadTypes } from 'lib/types/thread-types-enum.js';
import type { UserInfo } from 'lib/types/user-types.js';
+import ChatThreadItemLoaderCache from 'lib/utils/chat-thread-item-loader-cache.js';
import { ChatThreadListItem } from './chat-thread-list-item.react.js';
import ChatThreadListSearch from './chat-thread-list-search.react.js';
@@ -82,8 +83,19 @@
};
export type SearchStatus = 'inactive' | 'activating' | 'active';
+const pageSize = 25;
+
function ChatThreadList(props: BaseProps): React.Node {
- const boundChatListData = useFlattenedChatListData();
+ const chatThreadItemLoaders = useFlattenedChatListLoaders();
+ const chatThreadItemLoaderCache = React.useMemo(
+ () => new ChatThreadItemLoaderCache(chatThreadItemLoaders),
+ [chatThreadItemLoaders],
+ );
+
+ const [boundChatListData, setBoundChatListData] = React.useState<
+ $ReadOnlyArray<ChatThreadItem>,
+ >(() => chatThreadItemLoaderCache.getAllChatThreadItems());
+
const loggedInUserInfo = useLoggedInUserInfo();
const styles = useStyles(unboundStyles);
const indicatorStyle = useSelector(indicatorStyleSelector);
@@ -102,11 +114,22 @@
);
const [openedSwipeableID, setOpenedSwipeableID] = React.useState<string>('');
- const [numItemsToDisplay, setNumItemsToDisplay] = React.useState<number>(25);
+ const [numItemsToDisplay, setNumItemsToDisplay] =
+ React.useState<number>(pageSize);
+
+ React.useEffect(() => {
+ void (async () => {
+ const results =
+ await chatThreadItemLoaderCache.loadMostRecentChatThreadItems(
+ numItemsToDisplay,
+ );
+ setBoundChatListData(results);
+ })();
+ }, [numItemsToDisplay, chatThreadItemLoaderCache]);
const onChangeSearchText = React.useCallback((updatedSearchText: string) => {
setSearchText(updatedSearchText);
- setNumItemsToDisplay(25);
+ setNumItemsToDisplay(pageSize);
}, []);
const scrollPos = React.useRef(0);
@@ -314,7 +337,7 @@
if (partialListData.length === listData.length) {
return;
}
- setNumItemsToDisplay(prevNumItems => prevNumItems + 25);
+ setNumItemsToDisplay(prevNumItems => prevNumItems + pageSize);
}, [listData.length, partialListData.length]);
const floatingAction = React.useMemo(() => {
@@ -417,7 +440,7 @@
React.useEffect(() => {
const clearNavigationBlurListener = navigation.addListener('blur', () => {
- setNumItemsToDisplay(25);
+ setNumItemsToDisplay(pageSize);
});
return () => {

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