tdesign-react/cjs/hooks/useMutationObserver.js

TDesign Component for React

/**
 * tdesign v1.15.1
 * (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-eb6d55c1.js');
var debounce = require('../_chunks/dep-a231fdc5.js');
require('../_chunks/dep-31c4bc3d.js');
require('../_chunks/dep-eea2872a.js');
require('../_chunks/dep-25585736.js');
require('../_chunks/dep-667ac7af.js');
require('../_chunks/dep-62e73936.js');
require('../_chunks/dep-64577888.js');
require('../_chunks/dep-71455db7.js');
require('../_chunks/dep-9e5a468d.js');
require('../_chunks/dep-ec8d2dca.js');
require('../_chunks/dep-fc596d16.js');
require('../_chunks/dep-f26edb7b.js');
require('../_chunks/dep-f33c1939.js');
require('../_chunks/dep-21ece627.js');
require('../_chunks/dep-25e4aa84.js');
require('../_chunks/dep-e1fbe1c3.js');
require('../_chunks/dep-014b9b78.js');
require('../_chunks/dep-abdd786a.js');
require('../_chunks/dep-3d4656ee.js');
require('../_chunks/dep-0ffc9d96.js');
require('../_chunks/dep-efe6d243.js');
require('../_chunks/dep-4b18243f.js');
require('../_chunks/dep-bff2c990.js');
require('../_chunks/dep-cf14666e.js');
require('../_chunks/dep-79629634.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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