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import React from 'react'
import {
cancelAnimation,
SharedValue,
useSharedValue,
withSpring,
} from 'react-native-reanimated'
type StateContext = {
headerMode: SharedValue<number>
footerMode: SharedValue<number>
}
type SetContext = (v: boolean) => void
const stateContext = React.createContext<StateContext>({
headerMode: {
value: 0,
addListener() {},
removeListener() {},
modify() {},
get() {
return 0
},
set() {},
},
footerMode: {
value: 0,
addListener() {},
removeListener() {},
modify() {},
get() {
return 0
},
set() {},
},
})
const setContext = React.createContext<SetContext>((_: boolean) => {})
export function Provider({children}: React.PropsWithChildren<{}>) {
const headerMode = useSharedValue(0)
const footerMode = useSharedValue(0)
const setMode = React.useCallback(
(v: boolean) => {
'worklet'
// Cancel any existing animation
cancelAnimation(headerMode)
headerMode.set(() =>
withSpring(v ? 1 : 0, {
overshootClamping: true,
}),
)
cancelAnimation(footerMode)
footerMode.set(() =>
withSpring(v ? 1 : 0, {
overshootClamping: true,
}),
)
},
[headerMode, footerMode],
)
const value = React.useMemo(
() => ({
headerMode,
footerMode,
}),
[headerMode, footerMode],
)
return (
<stateContext.Provider value={value}>
<setContext.Provider value={setMode}>{children}</setContext.Provider>
</stateContext.Provider>
)
}
export function useMinimalShellMode() {
return React.useContext(stateContext)
}
export function useSetMinimalShellMode() {
return React.useContext(setContext)
}
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