react-native-gesture-handler/lib/typescript/getShadowNodeFromRef.js

Declarative API exposing native platform touch and gesture system to React Native

// Used by GestureDetector (unsupported on web at the moment) to check whether the
// attached view may get flattened on Fabric. This implementation causes errors
// on web due to the static resolution of `require` statements by webpack breaking
// the conditional importing. Solved by making .web file.
let findHostInstance_DEPRECATED;
let getInternalInstanceHandleFromPublicInstance;
export function getShadowNodeFromRef(ref) {
    // Load findHostInstance_DEPRECATED lazily because it may not be available before render
    if (findHostInstance_DEPRECATED === undefined) {
        try {
            // eslint-disable-next-line @typescript-eslint/no-var-requires
            const ReactFabric = require('react-native/Libraries/Renderer/shims/ReactFabric');
            // Since RN 0.77 ReactFabric exports findHostInstance_DEPRECATED in default object so we're trying to
            // access it first, then fallback on named export
            // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
            findHostInstance_DEPRECATED =
                // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
                ReactFabric?.default?.findHostInstance_DEPRECATED ||
                    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
                    ReactFabric?.findHostInstance_DEPRECATED;
        }
        catch (e) {
            findHostInstance_DEPRECATED = (_ref) => null;
        }
    }
    // Load findHostInstance_DEPRECATED lazily because it may not be available before render
    if (getInternalInstanceHandleFromPublicInstance === undefined) {
        try {
            // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
            getInternalInstanceHandleFromPublicInstance =
                // eslint-disable-next-line @typescript-eslint/no-var-requires
                require('react-native/Libraries/ReactNative/ReactFabricPublicInstance/ReactFabricPublicInstance')
                    .getInternalInstanceHandleFromPublicInstance ??
                    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access, @typescript-eslint/no-unsafe-return
                    ((ref) => ref._internalInstanceHandle);
        }
        catch (e) {
            getInternalInstanceHandleFromPublicInstance = (ref) => 
            // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access, @typescript-eslint/no-unsafe-return
            ref._internalInstanceHandle;
        }
    }
    // @ts-ignore Fabric
    return getInternalInstanceHandleFromPublicInstance(findHostInstance_DEPRECATED(ref)).stateNode.node;
}