54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
import { WebApplication } from '@/Application/Application'
|
|
import { AndroidConfirmBeforeExitKey } from '@/Components/Preferences/Panes/General/Defaults'
|
|
import { observer } from 'mobx-react-lite'
|
|
import { createContext, memo, ReactNode, useCallback, useContext, useEffect } from 'react'
|
|
|
|
type BackHandlerContextData = WebApplication['addAndroidBackHandlerEventListener']
|
|
|
|
const BackHandlerContext = createContext<BackHandlerContextData | null>(null)
|
|
|
|
export const useAndroidBackHandler = () => {
|
|
const value = useContext(BackHandlerContext)
|
|
|
|
if (!value) {
|
|
throw new Error('Component must be a child of <AndroidBackHandlerProvider />')
|
|
}
|
|
|
|
return value
|
|
}
|
|
|
|
type ChildrenProps = {
|
|
children: ReactNode
|
|
}
|
|
|
|
type ProviderProps = {
|
|
application: WebApplication
|
|
} & ChildrenProps
|
|
|
|
const MemoizedChildren = memo(({ children }: ChildrenProps) => <>{children}</>)
|
|
|
|
const AndroidBackHandlerProvider = ({ application, children }: ProviderProps) => {
|
|
const addAndroidBackHandler = useCallback(
|
|
(listener: () => boolean) => application.addAndroidBackHandlerEventListener(listener),
|
|
[application],
|
|
)
|
|
|
|
useEffect(() => {
|
|
application.setAndroidBackHandlerFallbackListener(() => {
|
|
const shouldConfirm = (application.getValue(AndroidConfirmBeforeExitKey) as boolean) ?? true
|
|
|
|
application.mobileDevice().exitApp(shouldConfirm)
|
|
|
|
return true
|
|
})
|
|
}, [application])
|
|
|
|
return (
|
|
<BackHandlerContext.Provider value={addAndroidBackHandler}>
|
|
<MemoizedChildren children={children} />
|
|
</BackHandlerContext.Provider>
|
|
)
|
|
}
|
|
|
|
export default observer(AndroidBackHandlerProvider)
|