function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(arr, i) { var _i = null == arr ? null : "undefined" != typeof Symbol && arr[Symbol.iterator] || arr["@@iterator"]; if (null != _i) { var _s, _e, _x, _r, _arr = [], _n = !0, _d = !1; try { if (_x = (_i = _i.call(arr)).next, 0 === i) { if (Object(_i) !== _i) return; _n = !1; } else for (; !(_n = (_s = _x.call(_i)).done) && (_arr.push(_s.value), _arr.length !== i); _n = !0); } catch (err) { _d = !0, _e = err; } finally { try { if (!_n && null != _i["return"] && (_r = _i["return"](), Object(_r) !== _r)) return; } finally { if (_d) throw _e; } } return _arr; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
import React from 'react';
// Browsers occasionally miscalculate scroll and client width/height by one pixel up or down
//  so we're use |x| > 1 instead of x > 0 assertion eliminating the issue at the cost of
//  a false-negative result if the content is overflowing by just 1 pixel
function isContentOverflowing(length, visibleLength) {
  return Math.abs(length - visibleLength) > 1;
}
function isContentOverflowingX(node) {
  return isContentOverflowing(node.scrollWidth, node.clientWidth);
}
function isContentOverflowingY(node) {
  return isContentOverflowing(node.scrollHeight, node.clientHeight);
}

/**
 * @deprecatedSince 11
 * @deprecated Never officially documented/supported
 */
export function useOverflowObserver() {
  var _React$useState = React.useState(false),
    _React$useState2 = _slicedToArray(_React$useState, 2),
    isOverflowingX = _React$useState2[0],
    setIsOverflowingX = _React$useState2[1];
  var _React$useState3 = React.useState(false),
    _React$useState4 = _slicedToArray(_React$useState3, 2),
    isOverflowingY = _React$useState4[0],
    setIsOverflowingY = _React$useState4[1];
  var ref = function ref(node) {
    if (!node) {
      return;
    }
    var newIsOverflowingX = isContentOverflowingX(node);
    if (newIsOverflowingX !== isOverflowingX) {
      setIsOverflowingX(newIsOverflowingX);
    }
    var newIsOverflowingY = isContentOverflowingY(node);
    if (newIsOverflowingY !== isOverflowingY) {
      setIsOverflowingY(newIsOverflowingY);
    }
  };
  return {
    ref: ref,
    isOverflowingX: isOverflowingX,
    isOverflowingY: isOverflowingY,
    isOverflowing: isOverflowingX || isOverflowingY
  };
}

/**
 * @deprecatedSince 11
 * @deprecated Never officially documented/supported
 */
export function OverflowObserver(_ref) {
  var children = _ref.children;
  var _useOverflowObserver = useOverflowObserver(),
    ref = _useOverflowObserver.ref,
    isOverflowing = _useOverflowObserver.isOverflowing,
    isOverflowingX = _useOverflowObserver.isOverflowingX,
    isOverflowingY = _useOverflowObserver.isOverflowingY;
  if (typeof children !== 'function') {
    console.warn("OverflowObserver: expected a function as \"children\" prop, received ".concat(_typeof(children)));
    return children;
  }
  return children({
    ref: ref,
    isOverflowing: isOverflowing,
    isOverflowingX: isOverflowingX,
    isOverflowingY: isOverflowingY
  });
}
//# sourceMappingURL=OverflowObserver.js.map