Method bindWindowEvents

js/ReadingSystem.js:1127–1133

* 绑定窗口事件

()

   * 绑定窗口事件
   */
  bindWindowEvents() {
    on(window, 'hashchange', () => {
      const newKey = location.hash.slice(1).trim() || this.config.DEFAULT_BOOK_KEY;
      if (newKey === this.state.bookKey) return;
      this.applyBookChange(newKey).then(() => this.loadUnitFromStorage());
    });
  }

  // =========================================================================
  // 清理和销毁