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import {
createContext,
useCallback,
useContext,
useEffect,
useMemo,
useRef,
} from 'react'
import {
KeyboardProvider,
useKeyboardController,
} from 'react-native-keyboard-controller'
import {useFocusEffect} from '@react-navigation/native'
const KeyboardControllerRefCountContext = createContext<{
incrementRefCount: () => void
decrementRefCount: () => void
}>({
incrementRefCount: () => {},
decrementRefCount: () => {},
})
KeyboardControllerRefCountContext.displayName =
'KeyboardControllerRefCountContext'
export function KeyboardControllerProvider({
children,
}: {
children: React.ReactNode
}) {
return (
<KeyboardProvider enabled={false}>
<KeyboardControllerProviderInner>
{children}
</KeyboardControllerProviderInner>
</KeyboardProvider>
)
}
function KeyboardControllerProviderInner({
children,
}: {
children: React.ReactNode
}) {
const {setEnabled} = useKeyboardController()
const refCount = useRef(0)
const value = useMemo(
() => ({
incrementRefCount: () => {
refCount.current++
setEnabled(refCount.current > 0)
},
decrementRefCount: () => {
refCount.current--
setEnabled(refCount.current > 0)
if (__DEV__ && refCount.current < 0) {
console.error('KeyboardController ref count < 0')
}
},
}),
[setEnabled],
)
return (
<KeyboardControllerRefCountContext.Provider value={value}>
{children}
</KeyboardControllerRefCountContext.Provider>
)
}
export function useEnableKeyboardController(shouldEnable: boolean) {
const {incrementRefCount, decrementRefCount} = useContext(
KeyboardControllerRefCountContext,
)
useEffect(() => {
if (!shouldEnable) {
return
}
incrementRefCount()
return () => {
decrementRefCount()
}
}, [shouldEnable, incrementRefCount, decrementRefCount])
}
/**
* Like `useEnableKeyboardController`, but using `useFocusEffect`
*/
export function useEnableKeyboardControllerScreen(shouldEnable: boolean) {
const {incrementRefCount, decrementRefCount} = useContext(
KeyboardControllerRefCountContext,
)
useFocusEffect(
useCallback(() => {
if (!shouldEnable) {
return
}
incrementRefCount()
return () => {
decrementRefCount()
}
}, [shouldEnable, incrementRefCount, decrementRefCount]),
)
}
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