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import React, {useContext, useMemo} from 'react'
import {StyleSheet, View, ViewProps, ViewStyle} from 'react-native'
import {StyleProp} from 'react-native'
import {
KeyboardAwareScrollView,
KeyboardAwareScrollViewProps,
} from 'react-native-keyboard-controller'
import Animated, {
AnimatedScrollViewProps,
useAnimatedProps,
} from 'react-native-reanimated'
import {useSafeAreaInsets} from 'react-native-safe-area-context'
import {isWeb} from '#/platform/detection'
import {useShellLayout} from '#/state/shell/shell-layout'
import {atoms as a, useBreakpoints, useTheme, web} from '#/alf'
import {ScrollbarOffsetContext} from '#/components/Layout/context'
export * from '#/components/Layout/const'
export * as Header from '#/components/Layout/Header'
export type ScreenProps = React.ComponentProps<typeof View> & {
style?: StyleProp<ViewStyle>
}
/**
* Outermost component of every screen
*/
export const Screen = React.memo(function Screen({
style,
...props
}: ScreenProps) {
const {top} = useSafeAreaInsets()
return (
<>
{isWeb && <WebCenterBorders />}
<View
style={[a.util_screen_outer, {paddingTop: top}, style]}
{...props}
/>
</>
)
})
export type ContentProps = AnimatedScrollViewProps & {
style?: StyleProp<ViewStyle>
contentContainerStyle?: StyleProp<ViewStyle>
}
/**
* Default scroll view for simple pages
*/
export const Content = React.memo(function Content({
children,
style,
contentContainerStyle,
...props
}: ContentProps) {
const {footerHeight} = useShellLayout()
const animatedProps = useAnimatedProps(() => {
return {
scrollIndicatorInsets: {
bottom: footerHeight.get(),
top: 0,
right: 1,
},
} satisfies AnimatedScrollViewProps
})
return (
<Animated.ScrollView
id="content"
automaticallyAdjustsScrollIndicatorInsets={false}
// sets the scroll inset to the height of the footer
animatedProps={animatedProps}
style={[scrollViewStyles.common, style]}
contentContainerStyle={[
scrollViewStyles.contentContainer,
contentContainerStyle,
]}
{...props}>
{isWeb ? (
// @ts-ignore web only -esb
<Center>{children}</Center>
) : (
children
)}
</Animated.ScrollView>
)
})
const scrollViewStyles = StyleSheet.create({
common: {
width: '100%',
},
contentContainer: {
paddingBottom: 100,
},
})
export type KeyboardAwareContentProps = KeyboardAwareScrollViewProps & {
children: React.ReactNode
contentContainerStyle?: StyleProp<ViewStyle>
}
/**
* Default scroll view for simple pages.
*
* BE SURE TO TEST THIS WHEN USING, it's untested as of writing this comment.
*/
export const KeyboardAwareContent = React.memo(function LayoutScrollView({
children,
style,
contentContainerStyle,
...props
}: KeyboardAwareContentProps) {
return (
<KeyboardAwareScrollView
style={[scrollViewStyles.common, style]}
contentContainerStyle={[
scrollViewStyles.contentContainer,
contentContainerStyle,
]}
keyboardShouldPersistTaps="handled"
{...props}>
{isWeb ? <Center>{children}</Center> : children}
</KeyboardAwareScrollView>
)
})
/**
* Utility component to center content within the screen
*/
export const Center = React.memo(function LayoutContent({
children,
style,
...props
}: ViewProps) {
const {isWithinOffsetView} = useContext(ScrollbarOffsetContext)
const {gtMobile} = useBreakpoints()
const ctx = useMemo(() => ({isWithinOffsetView: true}), [])
return (
<View
style={[
a.w_full,
a.mx_auto,
gtMobile && {
maxWidth: 600,
},
style,
!isWithinOffsetView && a.scrollbar_offset,
]}
{...props}>
<ScrollbarOffsetContext.Provider value={ctx}>
{children}
</ScrollbarOffsetContext.Provider>
</View>
)
})
/**
* Only used within `Layout.Screen`, not for reuse
*/
const WebCenterBorders = React.memo(function LayoutContent() {
const t = useTheme()
const {gtMobile} = useBreakpoints()
return gtMobile ? (
<View
style={[
a.fixed,
a.inset_0,
a.border_l,
a.border_r,
t.atoms.border_contrast_low,
web({
width: 602,
left: '50%',
transform: [
{
translateX: '-50%',
},
...a.scrollbar_offset.transform,
],
}),
]}
/>
) : null
})
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