@wordpress/compose/build/hooks/use-resize-observer/use-resize-observer.js

WordPress higher-order components (HOCs).

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// packages/compose/src/hooks/use-resize-observer/use-resize-observer.ts
var use_resize_observer_exports = {};
__export(use_resize_observer_exports, {
  useResizeObserver: () => useResizeObserver
});
module.exports = __toCommonJS(use_resize_observer_exports);
var import_element = require("@wordpress/element");
var import_use_event = __toESM(require("../use-event"));
function useResizeObserver(callback, resizeObserverOptions = {}) {
  const callbackEvent = (0, import_use_event.default)(callback);
  const observedElementRef = (0, import_element.useRef)();
  const resizeObserverRef = (0, import_element.useRef)();
  return (0, import_use_event.default)((element) => {
    if (element === observedElementRef.current) {
      return;
    }
    resizeObserverRef.current ??= new ResizeObserver(callbackEvent);
    const { current: resizeObserver } = resizeObserverRef;
    if (observedElementRef.current) {
      resizeObserver.unobserve(observedElementRef.current);
    }
    observedElementRef.current = element;
    if (element) {
      resizeObserver.observe(element, resizeObserverOptions);
    }
  });
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  useResizeObserver
});
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