rc-mutate-observer-modern/lib/useMutateObserver.js

React MutateObserver Component

"use strict";

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = useMutateObserver;
var _canUseDom = _interopRequireDefault(require("rc-util/lib/Dom/canUseDom"));
var React = _interopRequireWildcard(require("react"));
const defaultOptions = {
  subtree: true,
  childList: true,
  attributeFilter: ['style', 'class']
};
function useMutateObserver(nodeOrList, callback, options = defaultOptions) {
  React.useEffect(() => {
    if (!(0, _canUseDom.default)() || !nodeOrList) {
      return;
    }
    let instance;
    const nodeList = Array.isArray(nodeOrList) ? nodeOrList : [nodeOrList];
    if ('MutationObserver' in window) {
      instance = new MutationObserver(callback);
      nodeList.forEach(element => {
        instance.observe(element, options);
      });
    }
    return () => {
      instance?.takeRecords();
      instance?.disconnect();
    };
  }, [options, nodeOrList]);
}