64 lines
1.7 KiB
TypeScript
64 lines
1.7 KiB
TypeScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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import React from 'react';
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import Animated, {useAnimatedStyle} from 'react-native-reanimated';
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import {makeStyleSheetFromTheme} from '@utils/theme';
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type Props = {
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defaultHeight: number;
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hasSearch: boolean;
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isLargeTitle: boolean;
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largeHeight: number;
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scrollValue?: Animated.SharedValue<number>;
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theme: Theme;
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top: number;
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}
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const getStyleSheet = makeStyleSheetFromTheme((theme: Theme) => ({
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container: {
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backgroundColor: theme.sidebarBg,
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height: 16,
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position: 'absolute',
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width: '100%',
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},
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content: {
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backgroundColor: theme.centerChannelBg,
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borderTopLeftRadius: 12,
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borderTopRightRadius: 12,
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flex: 1,
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},
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}));
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const NavigationHeaderContext = ({
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defaultHeight,
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hasSearch,
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isLargeTitle,
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largeHeight,
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scrollValue,
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theme,
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top,
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}: Props) => {
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const styles = getStyleSheet(theme);
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const marginTop = useAnimatedStyle(() => {
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const normal = defaultHeight + top;
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const calculated = -(top + (scrollValue?.value || 0));
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const searchHeight = hasSearch ? defaultHeight + 9 : 0;
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if (!isLargeTitle) {
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return {marginTop: Math.max((normal + calculated), normal)};
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}
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return {marginTop: Math.max((-(scrollValue?.value || 0) + largeHeight + searchHeight), normal)};
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}, [defaultHeight, largeHeight, isLargeTitle, hasSearch]);
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return (
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<Animated.View style={[styles.container, marginTop]}>
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<Animated.View style={styles.content}/>
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</Animated.View>
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);
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};
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export default NavigationHeaderContext;
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