import {
  Build
} from "./chunk-IOZKU7B2.js";

// node_modules/@esri/calcite-components/dist/components/observers.js
function createObserver(type, callback, options) {
  if (!Build.isBrowser) {
    return void 0;
  }
  const Observer = getObserver(type);
  return new Observer(callback, options);
}
function getObserver(type) {
  class ExtendedMutationObserver extends window.MutationObserver {
    constructor(callback) {
      super(callback);
      this.observedEntry = [];
      this.callback = callback;
    }
    observe(target, options) {
      this.observedEntry.push({ target, options });
      return super.observe(target, options);
    }
    unobserve(target) {
      const newObservedEntries = this.observedEntry.filter((observed) => observed.target !== target);
      this.observedEntry = [];
      this.callback(super.takeRecords(), this);
      this.disconnect();
      newObservedEntries.forEach((observed) => this.observe(observed.target, observed.options));
    }
  }
  return function() {
    return type === "intersection" ? window.IntersectionObserver : type === "mutation" ? ExtendedMutationObserver : window.ResizeObserver;
  }();
}

export {
  createObserver
};
/*!
 * All material copyright ESRI, All Rights Reserved, unless otherwise specified.
 * See https://github.com/Esri/calcite-components/blob/master/LICENSE.md for details.
 * v1.0.0-beta.97
 */
//# sourceMappingURL=chunk-AVLPSIKF.js.map