preact-arco-design/es/Modal/useModal/contextHolder.js

Arco Design React UI Library.

var __read = this && this.__read || function (o, n) {
  var m = typeof Symbol === "function" && o[Symbol.iterator];
  if (!m) return o;
  var i = m.call(o),
      r,
      ar = [],
      e;

  try {
    while ((n === void 0 || n-- > 0) && !(r = i.next()).done) {
      ar.push(r.value);
    }
  } catch (error) {
    e = {
      error: error
    };
  } finally {
    try {
      if (r && !r.done && (m = i["return"])) m.call(i);
    } finally {
      if (e) throw e.error;
    }
  }

  return ar;
};

var __spreadArray = this && this.__spreadArray || function (to, from, pack) {
  if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
    if (ar || !(i in from)) {
      if (!ar) ar = Array.prototype.slice.call(from, 0, i);
      ar[i] = from[i];
    }
  }
  return to.concat(ar || Array.prototype.slice.call(from));
};

import React, { useState, useImperativeHandle, forwardRef } from "preact/compat";
var ContextHolderElement = forwardRef(function (_props, ref) {
  var _a = __read(useState([]), 2),
      instances = _a[0],
      setInstances = _a[1];

  function addInstance(ins) {
    setInstances(function (originInstances) {
      return __spreadArray(__spreadArray([], __read(originInstances), false), [ins], false);
    });
  }

  function removeInstance(ins) {
    setInstances(function (originInstances) {
      return originInstances.filter(function (originIns) {
        return ins !== originIns;
      });
    });
  }

  useImperativeHandle(ref, function () {
    return {
      addInstance: addInstance,
      removeInstance: removeInstance
    };
  });
  return React.createElement(React.Fragment, null, instances);
});
export default ContextHolderElement;