tdesign-react/cjs/hooks/useMutationObserver.js

TDesign Component for React

/**
 * tdesign v1.13.2
 * (c) 2025 tdesign
 * @license MIT
 */

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var React = require('react');
var hooks_useLatest = require('./useLatest.js');
var isEqual = require('../_chunks/dep-d6e82200.js');
var debounce = require('../_chunks/dep-1bcdd0a4.js');
require('../_chunks/dep-07b911d8.js');
require('../_chunks/dep-4b02d669.js');
require('../_chunks/dep-f0379c5f.js');
require('../_chunks/dep-6d4d8660.js');
require('../_chunks/dep-ddacd27a.js');
require('../_chunks/dep-028b759d.js');
require('../_chunks/dep-8a116183.js');
require('../_chunks/dep-4671b9bd.js');
require('../_chunks/dep-bed9d73e.js');
require('../_chunks/dep-780eda7b.js');
require('../_chunks/dep-47bdc05f.js');
require('../_chunks/dep-cab13149.js');
require('../_chunks/dep-a30819a4.js');
require('../_chunks/dep-6a7ba247.js');
require('../_chunks/dep-c87d9752.js');
require('../_chunks/dep-94d97586.js');
require('../_chunks/dep-b12bf98d.js');
require('../_chunks/dep-0c1ca63f.js');
require('../_chunks/dep-fd5d57c1.js');
require('../_chunks/dep-ac2874ce.js');
require('../_chunks/dep-6cfc06a0.js');
require('../_chunks/dep-5d9d080b.js');
require('../_chunks/dep-c915e145.js');
require('../_chunks/dep-f076775e.js');

var DEFAULT_OPTIONS = {
  debounceTime: 0,
  config: {
    attributes: true,
    childList: true,
    characterData: true,
    subtree: true
  }
};
function useMutationObservable(targetEl, cb) {
  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : DEFAULT_OPTIONS;
  var optionsRef = React.useRef(null);
  var signalRef = React.useRef(0);
  var callbackRef = hooks_useLatest["default"](cb);
  if (!isEqual.isEqual(options, optionsRef.current)) {
    signalRef.current += 1;
  }
  optionsRef.current = options;
  React.useEffect(function () {
    if (!targetEl || !(targetEl !== null && targetEl !== void 0 && targetEl.nodeType)) return;
    var observer = null;
    try {
      var _optionsRef$current = optionsRef.current,
        debounceTime = _optionsRef$current.debounceTime,
        config = _optionsRef$current.config;
      var mutationCallback = function mutationCallback() {
        callbackRef.current.apply(callbackRef, arguments);
      };
      observer = new MutationObserver(debounceTime > 0 ? debounce.debounce(mutationCallback, debounceTime) : mutationCallback);
      observer.observe(targetEl, config);
    } catch (e) {
      console.error(e);
    }
    return function () {
      if (observer) {
        observer.disconnect();
        observer = null;
      }
    };
  }, [targetEl, signalRef.current]);
}

exports["default"] = useMutationObservable;
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