rc-trigger/es/Popup/useStretchStyle.js

import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import * as React from 'react';
export default (function (stretch) {
  var _React$useState = React.useState({
    width: 0,
    height: 0
  }),
      _React$useState2 = _slicedToArray(_React$useState, 2),
      targetSize = _React$useState2[0],
      setTargetSize = _React$useState2[1];

  function measureStretch(element) {
    var tgtWidth = element.offsetWidth,
        tgtHeight = element.offsetHeight;

    var _element$getBoundingC = element.getBoundingClientRect(),
        width = _element$getBoundingC.width,
        height = _element$getBoundingC.height; // Rect is more accurate than offset, use if near


    if (Math.abs(tgtWidth - width) < 1 && Math.abs(tgtHeight - height) < 1) {
      tgtWidth = width;
      tgtHeight = height;
    }

    setTargetSize({
      width: tgtWidth,
      height: tgtHeight
    });
  } // Merge stretch style


  var style = React.useMemo(function () {
    var sizeStyle = {};

    if (stretch) {
      var width = targetSize.width,
          height = targetSize.height; // Stretch with target

      if (stretch.indexOf('height') !== -1 && height) {
        sizeStyle.height = height;
      } else if (stretch.indexOf('minHeight') !== -1 && height) {
        sizeStyle.minHeight = height;
      }

      if (stretch.indexOf('width') !== -1 && width) {
        sizeStyle.width = width;
      } else if (stretch.indexOf('minWidth') !== -1 && width) {
        sizeStyle.minWidth = width;
      }
    }

    return sizeStyle;
  }, [stretch, targetSize]);
  return [style, measureStretch];
});