@tanstack/offline-transactions/dist/cjs/connectivity/OnlineDetector.cjs

Offline-first transaction capabilities for TanStack DB

"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
class WebOnlineDetector {
  constructor() {
    this.listeners = /* @__PURE__ */ new Set();
    this.isListening = false;
    this.handleOnline = () => {
      this.notifyListeners();
    };
    this.handleVisibilityChange = () => {
      if (document.visibilityState === `visible`) {
        this.notifyListeners();
      }
    };
    this.startListening();
  }
  startListening() {
    if (this.isListening) {
      return;
    }
    this.isListening = true;
    if (typeof window !== `undefined`) {
      window.addEventListener(`online`, this.handleOnline);
      document.addEventListener(`visibilitychange`, this.handleVisibilityChange);
    }
  }
  stopListening() {
    if (!this.isListening) {
      return;
    }
    this.isListening = false;
    if (typeof window !== `undefined`) {
      window.removeEventListener(`online`, this.handleOnline);
      document.removeEventListener(
        `visibilitychange`,
        this.handleVisibilityChange
      );
    }
  }
  notifyListeners() {
    for (const listener of this.listeners) {
      try {
        listener();
      } catch (error) {
        console.warn(`OnlineDetector listener error:`, error);
      }
    }
  }
  subscribe(callback) {
    this.listeners.add(callback);
    return () => {
      this.listeners.delete(callback);
      if (this.listeners.size === 0) {
        this.stopListening();
      }
    };
  }
  notifyOnline() {
    this.notifyListeners();
  }
  isOnline() {
    if (typeof navigator !== `undefined`) {
      return navigator.onLine;
    }
    return true;
  }
  dispose() {
    this.stopListening();
    this.listeners.clear();
  }
}
const DefaultOnlineDetector = WebOnlineDetector;
exports.DefaultOnlineDetector = DefaultOnlineDetector;
exports.WebOnlineDetector = WebOnlineDetector;
//# sourceMappingURL=OnlineDetector.cjs.map