verdnatura-chat/app/views/RoomView/List/NavBottomFAB.tsx

76 lines
1.8 KiB
TypeScript

import React, { useState } from 'react';
import { StyleSheet, View } from 'react-native';
import Animated, { call, cond, greaterOrEq, useCode } from 'react-native-reanimated';
import { themes } from '../../../constants/colors';
import { CustomIcon } from '../../../lib/Icons';
import { useTheme } from '../../../theme';
import Touch from '../../../utils/touch';
import { hasNotch } from '../../../utils/deviceInfo';
const SCROLL_LIMIT = 200;
const SEND_TO_CHANNEL_HEIGHT = 40;
const styles = StyleSheet.create({
container: {
position: 'absolute',
right: 15
},
button: {
borderRadius: 25
},
content: {
width: 50,
height: 50,
borderRadius: 25,
borderWidth: 1,
alignItems: 'center',
justifyContent: 'center'
}
});
const NavBottomFAB = ({
y,
onPress,
isThread
}: {
y: Animated.Value<number>;
onPress: Function;
isThread: boolean;
}): React.ReactElement | null => {
const { theme } = useTheme();
const [show, setShow] = useState(false);
const handleOnPress = () => onPress();
const toggle = (v: boolean) => setShow(v);
useCode(
() =>
cond(
greaterOrEq(y, SCROLL_LIMIT),
call([y], () => toggle(true)),
call([y], () => toggle(false))
),
[y]
);
if (!show) {
return null;
}
let bottom = hasNotch ? 100 : 60;
if (isThread) {
bottom += SEND_TO_CHANNEL_HEIGHT;
}
return (
<Animated.View style={[styles.container, { bottom }]} testID='nav-jump-to-bottom'>
<Touch onPress={handleOnPress} theme={theme} style={[styles.button, { backgroundColor: themes[theme].backgroundColor }]}>
<View style={[styles.content, { borderColor: themes[theme].borderColor }]}>
<CustomIcon name='chevron-down' color={themes[theme].auxiliaryTintColor} size={36} />
</View>
</Touch>
</Animated.View>
);
};
export default NavBottomFAB;