react-native-reanimated/lib/commonjs/reanimated2/hook/useScrollViewOffset.js

More powerful alternative to Animated library for React Native.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useScrollViewOffset = useScrollViewOffset;

var _react = require("react");

var _reactNative = require("react-native");

var _utils = require("./utils");

var _useSharedValue = require("./useSharedValue");

const scrollEventNames = ['onScroll', 'onScrollBeginDrag', 'onScrollEndDrag', 'onMomentumScrollBegin', 'onMomentumScrollEnd'];

function useScrollViewOffset(aref) {
  const offsetRef = (0, _react.useRef)((0, _useSharedValue.useSharedValue)(0));
  const event = (0, _utils.useEvent)(event => {
    'worklet';

    offsetRef.current.value = event.contentOffset.x === 0 ? event.contentOffset.y : event.contentOffset.x;
  }, scrollEventNames);
  (0, _react.useEffect)(() => {
    var _event$current;

    const viewTag = (0, _reactNative.findNodeHandle)(aref.current);
    (_event$current = event.current) === null || _event$current === void 0 ? void 0 : _event$current.registerForEvents(viewTag);
  }, [aref.current]);
  return offsetRef.current;
}
//# sourceMappingURL=useScrollViewOffset.js.map