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import {createContext, useCallback, useContext} from 'react'
import {GestureResponderEvent, View} from 'react-native'
import {msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {useNavigation} from '@react-navigation/native'
import {HITSLOP_30} from '#/lib/constants'
import {NavigationProp} from '#/lib/routes/types'
import {isIOS} from '#/platform/detection'
import {useSetDrawerOpen} from '#/state/shell'
import {
atoms as a,
platform,
TextStyleProp,
useBreakpoints,
useGutters,
useTheme,
} from '#/alf'
import {Button, ButtonIcon, ButtonProps} from '#/components/Button'
import {ArrowLeft_Stroke2_Corner0_Rounded as ArrowLeft} from '#/components/icons/Arrow'
import {Menu_Stroke2_Corner0_Rounded as Menu} from '#/components/icons/Menu'
import {
BUTTON_VISUAL_ALIGNMENT_OFFSET,
HEADER_SLOT_SIZE,
} from '#/components/Layout/const'
import {ScrollbarOffsetContext} from '#/components/Layout/context'
import {Text} from '#/components/Typography'
export function Outer({
children,
noBottomBorder,
}: {
children: React.ReactNode
noBottomBorder?: boolean
}) {
const t = useTheme()
const gutters = useGutters([0, 'base'])
const {gtMobile} = useBreakpoints()
const {isWithinOffsetView} = useContext(ScrollbarOffsetContext)
return (
<View
style={[
a.w_full,
!noBottomBorder && a.border_b,
a.flex_row,
a.align_center,
a.gap_sm,
gutters,
platform({
native: [a.pb_xs, {minHeight: 48}],
web: [a.py_xs, {minHeight: 52}],
}),
t.atoms.border_contrast_low,
gtMobile && [a.mx_auto, {maxWidth: 600}],
!isWithinOffsetView && a.scrollbar_offset,
]}>
{children}
</View>
)
}
const AlignmentContext = createContext<'platform' | 'left'>('platform')
export function Content({
children,
align = 'platform',
}: {
children?: React.ReactNode
align?: 'platform' | 'left'
}) {
return (
<View
style={[
a.flex_1,
a.justify_center,
isIOS && align === 'platform' && a.align_center,
{minHeight: HEADER_SLOT_SIZE},
]}>
<AlignmentContext.Provider value={align}>
{children}
</AlignmentContext.Provider>
</View>
)
}
export function Slot({children}: {children?: React.ReactNode}) {
return (
<View
style={[
a.z_50,
{
width: HEADER_SLOT_SIZE,
},
]}>
{children}
</View>
)
}
export function BackButton({onPress, style, ...props}: Partial<ButtonProps>) {
const {_} = useLingui()
const navigation = useNavigation<NavigationProp>()
const onPressBack = useCallback(
(evt: GestureResponderEvent) => {
onPress?.(evt)
if (evt.defaultPrevented) return
if (navigation.canGoBack()) {
navigation.goBack()
} else {
navigation.navigate('Home')
}
},
[onPress, navigation],
)
return (
<Slot>
<Button
label={_(msg`Go back`)}
size="small"
variant="ghost"
color="secondary"
shape="square"
onPress={onPressBack}
hitSlop={HITSLOP_30}
style={[{marginLeft: -BUTTON_VISUAL_ALIGNMENT_OFFSET}, style]}
{...props}>
<ButtonIcon icon={ArrowLeft} size="lg" />
</Button>
</Slot>
)
}
export function MenuButton() {
const {_} = useLingui()
const setDrawerOpen = useSetDrawerOpen()
const {gtMobile} = useBreakpoints()
const onPress = useCallback(() => {
setDrawerOpen(true)
}, [setDrawerOpen])
return gtMobile ? null : (
<Slot>
<Button
label={_(msg`Open drawer menu`)}
size="small"
variant="ghost"
color="secondary"
shape="square"
onPress={onPress}
hitSlop={HITSLOP_30}
style={[{marginLeft: -BUTTON_VISUAL_ALIGNMENT_OFFSET}]}>
<ButtonIcon icon={Menu} size="lg" />
</Button>
</Slot>
)
}
export function TitleText({
children,
style,
}: {children: React.ReactNode} & TextStyleProp) {
const {gtMobile} = useBreakpoints()
const align = useContext(AlignmentContext)
return (
<Text
style={[
a.text_lg,
a.font_heavy,
a.leading_tight,
isIOS && align === 'platform' && a.text_center,
gtMobile && a.text_xl,
style,
]}
numberOfLines={2}>
{children}
</Text>
)
}
export function SubtitleText({children}: {children: React.ReactNode}) {
const t = useTheme()
const align = useContext(AlignmentContext)
return (
<Text
style={[
a.text_sm,
a.leading_snug,
isIOS && align === 'platform' && a.text_center,
t.atoms.text_contrast_medium,
]}
numberOfLines={2}>
{children}
</Text>
)
}
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