diff --git a/native/chat/chat-thread-list.react.js b/native/chat/chat-thread-list.react.js
index 464e530ca..06c9ec14a 100644
--- a/native/chat/chat-thread-list.react.js
+++ b/native/chat/chat-thread-list.react.js
@@ -1,496 +1,496 @@
// @flow
import IonIcon from '@expo/vector-icons/Ionicons.js';
import type {
TabNavigationState,
BottomTabOptions,
BottomTabNavigationEventMap,
StackNavigationState,
StackOptions,
StackNavigationEventMap,
} from '@react-navigation/core';
import invariant from 'invariant';
import * as React from 'react';
import {
View,
FlatList,
Platform,
TouchableWithoutFeedback,
BackHandler,
} from 'react-native';
import { FloatingAction } from 'react-native-floating-action';
import { useLoggedInUserInfo } from 'lib/hooks/account-hooks.js';
import {
type ChatThreadItem,
useFlattenedChatListData,
} from 'lib/selectors/chat-selectors.js';
import {
createPendingThread,
getThreadListSearchResults,
useThreadListSearch,
} from 'lib/shared/thread-utils.js';
import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
import { threadTypes } from 'lib/types/thread-types-enum.js';
import type { ThreadInfo } from 'lib/types/thread-types.js';
import type { UserInfo } from 'lib/types/user-types.js';
import { ChatThreadListItem } from './chat-thread-list-item.react.js';
import ChatThreadListSearch from './chat-thread-list-search.react.js';
import { getItemLayout, keyExtractor } from './chat-thread-list-utils.js';
import type {
ChatTopTabsNavigationProp,
ChatNavigationProp,
} from './chat.react.js';
import { useNavigateToThread } from './message-list-types.js';
import {
SidebarListModalRouteName,
HomeChatThreadListRouteName,
BackgroundChatThreadListRouteName,
type NavigationRoute,
type ScreenParamList,
} from '../navigation/route-names.js';
import type { TabNavigationProp } from '../navigation/tab-navigator.react.js';
import { useSelector } from '../redux/redux-utils.js';
import { indicatorStyleSelector, useStyles } from '../themes/colors.js';
import type { ScrollEvent } from '../types/react-native.js';
const floatingActions = [
{
text: 'Compose',
icon: ,
name: 'compose',
position: 1,
},
];
export type Item =
| ChatThreadItem
| { +type: 'search', +searchText: string }
| { +type: 'empty', +emptyItem: React.ComponentType<{}> };
type BaseProps = {
+navigation:
| ChatTopTabsNavigationProp<'HomeChatThreadList'>
| ChatTopTabsNavigationProp<'BackgroundChatThreadList'>,
+route:
| NavigationRoute<'HomeChatThreadList'>
| NavigationRoute<'BackgroundChatThreadList'>,
+filterThreads: (
threadItem: ThreadInfo | MinimallyEncodedThreadInfo,
) => boolean,
+emptyItem?: React.ComponentType<{}>,
};
export type SearchStatus = 'inactive' | 'activating' | 'active';
function ChatThreadList(props: BaseProps): React.Node {
const boundChatListData = useFlattenedChatListData();
const loggedInUserInfo = useLoggedInUserInfo();
const styles = useStyles(unboundStyles);
const indicatorStyle = useSelector(indicatorStyleSelector);
const navigateToThread = useNavigateToThread();
const { navigation, route, filterThreads, emptyItem } = props;
const [searchText, setSearchText] = React.useState('');
const [searchStatus, setSearchStatus] =
React.useState('inactive');
const { threadSearchResults, usersSearchResults } = useThreadListSearch(
searchText,
loggedInUserInfo?.id,
);
const [openedSwipeableID, setOpenedSwipeableID] = React.useState('');
const [numItemsToDisplay, setNumItemsToDisplay] = React.useState(25);
const onChangeSearchText = React.useCallback((updatedSearchText: string) => {
setSearchText(updatedSearchText);
setNumItemsToDisplay(25);
}, []);
const scrollPos = React.useRef(0);
const flatListRef = React.useRef();
const onScroll = React.useCallback(
(event: ScrollEvent) => {
const oldScrollPos = scrollPos.current;
scrollPos.current = event.nativeEvent.contentOffset.y;
if (scrollPos.current !== 0 || oldScrollPos === 0) {
return;
}
if (searchStatus === 'activating') {
setSearchStatus('active');
}
},
[searchStatus],
);
const onSwipeableWillOpen = React.useCallback(
(threadInfo: ThreadInfo) => setOpenedSwipeableID(threadInfo.id),
[],
);
const composeThread = React.useCallback(() => {
if (!loggedInUserInfo) {
return;
}
const threadInfo = createPendingThread({
viewerID: loggedInUserInfo.id,
threadType: threadTypes.PRIVATE,
members: [loggedInUserInfo],
});
navigateToThread({ threadInfo, searching: true });
}, [loggedInUserInfo, navigateToThread]);
const onSearchFocus = React.useCallback(() => {
if (searchStatus !== 'inactive') {
return;
}
if (scrollPos.current === 0) {
setSearchStatus('active');
} else {
setSearchStatus('activating');
}
}, [searchStatus]);
const clearSearch = React.useCallback(() => {
if (scrollPos.current > 0 && flatListRef.current) {
flatListRef.current.scrollToOffset({ offset: 0, animated: false });
}
setSearchStatus('inactive');
}, []);
const onSearchBlur = React.useCallback(() => {
if (searchStatus !== 'active') {
return;
}
clearSearch();
}, [clearSearch, searchStatus]);
const onSearchCancel = React.useCallback(() => {
onChangeSearchText('');
clearSearch();
}, [clearSearch, onChangeSearchText]);
const searchInputRef = React.useRef();
const onPressItem = React.useCallback(
(threadInfo: ThreadInfo, pendingPersonalThreadUserInfo?: UserInfo) => {
onChangeSearchText('');
if (searchInputRef.current) {
searchInputRef.current.blur();
}
navigateToThread({ threadInfo, pendingPersonalThreadUserInfo });
},
[navigateToThread, onChangeSearchText],
);
const onPressSeeMoreSidebars = React.useCallback(
(threadInfo: ThreadInfo) => {
onChangeSearchText('');
if (searchInputRef.current) {
- this.searchInputRef.current.blur();
+ searchInputRef.current.blur();
}
navigation.navigate<'SidebarListModal'>({
name: SidebarListModalRouteName,
params: { threadInfo },
});
},
[navigation, onChangeSearchText],
);
const hardwareBack = React.useCallback(() => {
if (!navigation.isFocused()) {
return false;
}
const isActiveOrActivating =
searchStatus === 'active' || searchStatus === 'activating';
if (!isActiveOrActivating) {
return false;
}
onSearchCancel();
return true;
}, [navigation, onSearchCancel, searchStatus]);
const searchItem = React.useMemo(
() => (
),
[
onChangeSearchText,
onSearchBlur,
onSearchCancel,
onSearchFocus,
searchStatus,
searchText,
styles.searchContainer,
],
);
const renderItem = React.useCallback(
(row: { item: Item, ... }) => {
const item = row.item;
if (item.type === 'search') {
return searchItem;
}
if (item.type === 'empty') {
const EmptyItem = item.emptyItem;
return ;
}
return (
);
},
[
onPressItem,
onPressSeeMoreSidebars,
onSwipeableWillOpen,
openedSwipeableID,
searchItem,
],
);
const listData: $ReadOnlyArray- = React.useMemo(() => {
const chatThreadItems = getThreadListSearchResults(
boundChatListData,
searchText,
filterThreads,
threadSearchResults,
usersSearchResults,
loggedInUserInfo,
);
const chatItems: Item[] = [...chatThreadItems];
if (emptyItem && chatItems.length === 0) {
chatItems.push({ type: 'empty', emptyItem });
}
if (searchStatus === 'inactive' || searchStatus === 'activating') {
chatItems.unshift({ type: 'search', searchText });
}
return chatItems;
}, [
boundChatListData,
emptyItem,
filterThreads,
loggedInUserInfo,
searchStatus,
searchText,
threadSearchResults,
usersSearchResults,
]);
const partialListData: $ReadOnlyArray
- = React.useMemo(
() => listData.slice(0, numItemsToDisplay),
[listData, numItemsToDisplay],
);
const onEndReached = React.useCallback(() => {
if (partialListData.length === listData.length) {
return;
}
setNumItemsToDisplay(prevNumItems => prevNumItems + 25);
}, [listData.length, partialListData.length]);
const floatingAction = React.useMemo(() => {
if (Platform.OS !== 'android') {
return null;
}
return (
);
}, [composeThread]);
const fixedSearch = React.useMemo(() => {
if (searchStatus !== 'active') {
return null;
}
return (
);
}, [
onChangeSearchText,
onSearchBlur,
onSearchCancel,
searchStatus,
searchText,
styles.searchContainer,
]);
const scrollEnabled =
searchStatus === 'inactive' || searchStatus === 'active';
// viewerID is in extraData since it's used by MessagePreview
// within ChatThreadListItem
const viewerID = loggedInUserInfo?.id;
const extraData = `${viewerID || ''} ${openedSwipeableID}`;
const chatThreadList = React.useMemo(
() => (
{fixedSearch}
{floatingAction}
),
[
extraData,
fixedSearch,
floatingAction,
indicatorStyle,
onEndReached,
onScroll,
partialListData,
renderItem,
scrollEnabled,
styles.container,
styles.flatList,
],
);
const onTabPress = React.useCallback(() => {
if (!navigation.isFocused()) {
return;
}
if (scrollPos.current > 0 && flatListRef.current) {
flatListRef.current.scrollToOffset({ offset: 0, animated: true });
} else if (route.name === BackgroundChatThreadListRouteName) {
navigation.navigate({ name: HomeChatThreadListRouteName });
}
}, [navigation, route.name]);
React.useEffect(() => {
const clearNavigationBlurListener = navigation.addListener('blur', () => {
setNumItemsToDisplay(25);
});
return () => {
// `.addListener` returns function that can be called to unsubscribe.
// https://reactnavigation.org/docs/navigation-events/#navigationaddlistener
clearNavigationBlurListener();
};
}, [navigation]);
React.useEffect(() => {
const chatNavigation = navigation.getParent<
ScreenParamList,
'ChatThreadList',
StackNavigationState,
StackOptions,
StackNavigationEventMap,
ChatNavigationProp<'ChatThreadList'>,
>();
invariant(chatNavigation, 'ChatNavigator should be within TabNavigator');
const tabNavigation = chatNavigation.getParent<
ScreenParamList,
'Chat',
TabNavigationState,
BottomTabOptions,
BottomTabNavigationEventMap,
TabNavigationProp<'Chat'>,
>();
invariant(tabNavigation, 'ChatNavigator should be within TabNavigator');
tabNavigation.addListener('tabPress', onTabPress);
return () => {
tabNavigation.removeListener('tabPress', onTabPress);
};
}, [navigation, onTabPress]);
React.useEffect(() => {
BackHandler.addEventListener('hardwareBackPress', hardwareBack);
return () => {
BackHandler.removeEventListener('hardwareBackPress', hardwareBack);
};
}, [hardwareBack]);
React.useEffect(() => {
if (scrollPos.current > 0 && flatListRef.current) {
flatListRef.current.scrollToOffset({ offset: 0, animated: false });
}
}, [searchText]);
const isSearchActivating = searchStatus === 'activating';
React.useEffect(() => {
if (isSearchActivating && scrollPos.current > 0 && flatListRef.current) {
flatListRef.current.scrollToOffset({ offset: 0, animated: true });
}
}, [isSearchActivating]);
return chatThreadList;
}
const unboundStyles = {
icon: {
fontSize: 28,
},
container: {
flex: 1,
},
searchContainer: {
backgroundColor: 'listBackground',
display: 'flex',
justifyContent: 'center',
flexDirection: 'row',
},
flatList: {
flex: 1,
backgroundColor: 'listBackground',
},
};
export default ChatThreadList;