refun/native/map-hovered.js

A collection of React Hook-enabled functions that compose harmoniously with each other. Similar to `recompose`, but:

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.mapHovered = void 0;

var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));

var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));

var _react = require("react");

var _tsfn = require("tsfn");

var mapHovered = function mapHovered(props) {
  var _useState = (0, _react.useState)(false),
      _useState2 = (0, _slicedToArray2.default)(_useState, 2),
      isHovered = _useState2[0],
      setIsHovered = _useState2[1];

  var origOnPointerEnterRef = (0, _react.useRef)();
  var origOnPointerLeaveRef = (0, _react.useRef)();
  var onPointerEnterRef = (0, _react.useRef)(_tsfn.NOOP);
  var onPointerLeaveRef = (0, _react.useRef)(_tsfn.NOOP);
  origOnPointerEnterRef.current = props.onPointerEnter;
  origOnPointerLeaveRef.current = props.onPointerLeave;

  if (onPointerEnterRef.current === _tsfn.NOOP) {
    onPointerEnterRef.current = function () {
      setIsHovered(true);

      if ((0, _tsfn.isFunction)(origOnPointerEnterRef.current)) {
        origOnPointerEnterRef.current();
      }
    };
  }

  if (onPointerLeaveRef.current === _tsfn.NOOP) {
    onPointerLeaveRef.current = function () {
      setIsHovered(false);

      if ((0, _tsfn.isFunction)(origOnPointerLeaveRef.current)) {
        origOnPointerLeaveRef.current();
      }
    };
  }

  return (0, _extends2.default)({}, props, {
    isHovered: isHovered || Boolean(props.isHovered),
    onPointerEnter: onPointerEnterRef.current,
    onPointerLeave: onPointerLeaveRef.current
  });
};

exports.mapHovered = mapHovered;
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