react-simple-channel/dist/useBroadcastSync.js

Lightweight and reactive tab-to-tab communication tool for React & non-React contexts. 一个轻量的 React 多标签页通信工具，支持传统函数和 Hook 两种方式。

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
/**
 * useBroadcastSync Hook，跨浏览器 tab 通信
 */
import { useEffect, useMemo, useRef, useState } from 'react';
import { BroadcastChannel } from 'broadcast-channel';
import { debounce, throttle } from "./func"; // 引入防抖和节流函数

/**
 * 多标签页之间状态同步 Hook，支持泛型、节流/防抖、onChange 回调。
 * @param channelName 通信频道名（多个页面一致即可同步）
 * @param defaultValue 默认值
 * @param options 可选配置项
 */
export function useBroadcastSync(channelName, defaultValue) {
  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  var _useState = useState(defaultValue),
    _useState2 = _slicedToArray(_useState, 2),
    state = _useState2[0],
    setState = _useState2[1];
  var channelRef = useRef(null);
  var onChangeRef = useRef(options.onChange);

  // 保持 onChange 引用不变（避免闭包陷阱）
  useEffect(function () {
    onChangeRef.current = options.onChange;
  }, [options.onChange]);

  // 初始化频道
  useEffect(function () {
    var channel = new BroadcastChannel(channelName);
    channelRef.current = channel;
    var handleMessage = function handleMessage(msg) {
      var _onChangeRef$current;
      setState(msg);
      (_onChangeRef$current = onChangeRef.current) === null || _onChangeRef$current === void 0 || _onChangeRef$current.call(onChangeRef, msg, true); // 来自远程广播
    };
    channel.onmessage = handleMessage;
    return function () {
      channel.close();
    };
  }, [channelName]);

  // 创建 postMessage 函数（加防抖/节流）
  var postMessage = useMemo(function () {
    var rawPost = function rawPost(value) {
      var _onChangeRef$current2, _channelRef$current;
      console.log('调用了');
      (_onChangeRef$current2 = onChangeRef.current) === null || _onChangeRef$current2 === void 0 || _onChangeRef$current2.call(onChangeRef, value, false); // 本地触发
      (_channelRef$current = channelRef.current) === null || _channelRef$current === void 0 || _channelRef$current.postMessage(value);
    };
    if (options.debounceMs) {
      return debounce(rawPost, options.debounceMs);
    }
    if (options.throttleMs) {
      return throttle(rawPost, options.throttleMs);
    }
    return rawPost;
  }, [options.debounceMs, options.throttleMs]);

  // 提供给组件更新状态的方法
  var updateState = function updateState(value) {
    setState(value); // 更新本地状态
    postMessage(value);
  };
  return [state, updateState];
}