@quidone/react-native-wheel-picker/dest/commonjs/hoc/virtualized/VirtualizedList.js

Picker is a UI component for selecting an item from a list of options.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _react = _interopRequireWildcard(require("react"));
var _reactNative = require("react-native");
var _scrolling = require("../../utils/scrolling");
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
// TODO "any" is not an exact type. How to pass the generic type?
const ExtendedAnimatedFlatList = (0, _scrolling.withScrollEndEvent)(_reactNative.Animated.FlatList);
const VirtualizedList = (_ref, forwardedRef) => {
  let {
    initialIndex,
    data,
    keyExtractor,
    renderItem,
    itemHeight,
    pickerHeight,
    visibleItemCount,
    readOnly,
    scrollOffset,
    onTouchEnd,
    onTouchStart,
    onTouchCancel,
    onScrollEnd,
    contentContainerStyle: contentContainerStyleProp,
    initialNumToRender,
    maxToRenderPerBatch,
    updateCellsBatchingPeriod = 10,
    windowSize,
    ...restProps
  } = _ref;
  const snapToOffsets = (0, _react.useMemo)(() => data.map((_, i) => i * itemHeight), [data, itemHeight]);
  const onScroll = (0, _react.useMemo)(() => _reactNative.Animated.event([{
    nativeEvent: {
      contentOffset: {
        y: scrollOffset
      }
    }
  }], {
    useNativeDriver: true
  }), [scrollOffset]);
  const getItemLayout = (0, _react.useCallback)((_, index) => ({
    length: itemHeight,
    offset: itemHeight * index,
    index
  }), [itemHeight]);
  const contentContainerStyle = (0, _react.useMemo)(() => {
    return [{
      paddingVertical: (pickerHeight - itemHeight) / 2
    }, contentContainerStyleProp];
  }, [pickerHeight, itemHeight, contentContainerStyleProp]);
  return /*#__PURE__*/_react.default.createElement(ExtendedAnimatedFlatList, _extends({
    showsHorizontalScrollIndicator: false,
    showsVerticalScrollIndicator: false,
    scrollEventThrottle: 16,
    scrollEnabled: !readOnly
  }, restProps, {
    ref: forwardedRef,
    data: data,
    renderItem: renderItem,
    keyExtractor: keyExtractor,
    getItemLayout: getItemLayout,
    initialScrollIndex: initialIndex,
    onScroll: onScroll,
    snapToOffsets: snapToOffsets,
    style: styles.list,
    contentContainerStyle: contentContainerStyle,
    onTouchStart: onTouchStart,
    onTouchEnd: onTouchEnd,
    onTouchCancel: onTouchCancel,
    onScrollEnd: onScrollEnd,
    initialNumToRender: initialNumToRender ?? Math.ceil(visibleItemCount / 2),
    maxToRenderPerBatch: maxToRenderPerBatch ?? Math.ceil(visibleItemCount / 2),
    updateCellsBatchingPeriod: updateCellsBatchingPeriod,
    windowSize: windowSize,
    nestedScrollEnabled: true,
    removeClippedSubviews: false
  }));
};
const styles = _reactNative.StyleSheet.create({
  list: {
    width: '100%',
    overflow: 'visible'
  }
});
var _default = /*#__PURE__*/(0, _react.memo)( /*#__PURE__*/(0, _react.forwardRef)(VirtualizedList));
exports.default = _default;
//# sourceMappingURL=VirtualizedList.js.map