Rocket.Chat.ReactNative/app/views/RoomView/List/List.tsx

69 lines
1.7 KiB
TypeScript

import PropTypes from 'prop-types';
import React, { useState } from 'react';
import { FlatListProps, StyleSheet } from 'react-native';
import { FlatList } from 'react-native-gesture-handler';
import Animated, { runOnJS, useAnimatedScrollHandler } from 'react-native-reanimated';
import { isIOS } from '../../../lib/methods/helpers';
import scrollPersistTaps from '../../../lib/methods/helpers/scrollPersistTaps';
import NavBottomFAB, { SCROLL_LIMIT } from './NavBottomFAB';
const styles = StyleSheet.create({
list: {
flex: 1
},
contentContainer: {
paddingTop: 10
}
});
export type TListRef = React.RefObject<FlatList & { getNode: () => FlatList }>;
export interface IListProps extends FlatListProps<any> {
listRef: TListRef;
jumpToBottom: () => void;
isThread: boolean;
}
const List = ({ listRef, jumpToBottom, isThread, ...props }: IListProps) => {
const [visible, setVisible] = useState(false);
const scrollHandler = useAnimatedScrollHandler({
onScroll: event => {
if (event.contentOffset.y > SCROLL_LIMIT) {
runOnJS(setVisible)(true);
} else {
runOnJS(setVisible)(false);
}
}
});
return (
<>
<Animated.FlatList
testID='room-view-messages'
ref={listRef}
keyExtractor={(item: any) => item.id}
contentContainerStyle={styles.contentContainer}
style={styles.list}
removeClippedSubviews={isIOS}
initialNumToRender={7}
onEndReachedThreshold={0.5}
maxToRenderPerBatch={5}
windowSize={10}
scrollEventThrottle={16}
onScroll={scrollHandler}
{...props}
{...scrollPersistTaps}
/>
<NavBottomFAB visible={visible} onPress={jumpToBottom} isThread={isThread} />
</>
);
};
List.propTypes = {
listRef: PropTypes.object
};
export default List;