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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| import React from 'react' | ||
| import {AccessibilityInfo} from 'react-native' | ||
| import {isReducedMotion} from 'react-native-reanimated' | ||
|
|
||
| import {isWeb} from '#/platform/detection' | ||
|
|
||
| const Context = React.createContext({ | ||
| reduceMotionEnabled: false, | ||
| screenReaderEnabled: false, | ||
| }) | ||
|
|
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| export function useA11y() { | ||
| return React.useContext(Context) | ||
| } | ||
|
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||
| export function Provider({children}: React.PropsWithChildren<{}>) { | ||
| const [reduceMotionEnabled, setReduceMotionEnabled] = React.useState(() => | ||
| isReducedMotion(), | ||
| ) | ||
| const [screenReaderEnabled, setScreenReaderEnabled] = React.useState(false) | ||
|
|
||
| React.useEffect(() => { | ||
| const reduceMotionChangedSubscription = AccessibilityInfo.addEventListener( | ||
| 'reduceMotionChanged', | ||
| enabled => { | ||
| setReduceMotionEnabled(enabled) | ||
| }, | ||
| ) | ||
| const screenReaderChangedSubscription = AccessibilityInfo.addEventListener( | ||
| 'screenReaderChanged', | ||
| enabled => { | ||
| setScreenReaderEnabled(enabled) | ||
| }, | ||
| ) | ||
|
|
||
| ;(async () => { | ||
| const [_reduceMotionEnabled, _screenReaderEnabled] = await Promise.all([ | ||
| AccessibilityInfo.isReduceMotionEnabled(), | ||
| AccessibilityInfo.isScreenReaderEnabled(), | ||
| ]) | ||
| setReduceMotionEnabled(_reduceMotionEnabled) | ||
| setScreenReaderEnabled(_screenReaderEnabled) | ||
| })() | ||
|
|
||
| return () => { | ||
| reduceMotionChangedSubscription.remove() | ||
| screenReaderChangedSubscription.remove() | ||
| } | ||
| }, []) | ||
|
|
||
| const ctx = React.useMemo(() => { | ||
| return { | ||
| reduceMotionEnabled, | ||
| /** | ||
| * Always returns true on web. For now, we're using this for mobile a11y, | ||
| * so we reset to false on web. | ||
| * | ||
| * @see https://github.com/necolas/react-native-web/discussions/2072 | ||
| */ | ||
| screenReaderEnabled: isWeb ? false : screenReaderEnabled, | ||
| } | ||
| }, [reduceMotionEnabled, screenReaderEnabled]) | ||
|
|
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| return <Context.Provider value={ctx}>{children}</Context.Provider> | ||
| } |