離線時將文件上傳到 Firebase 雲存儲時觸發代碼

這是 Firebase 在其文檔中用作將文件上傳到 Firebase Cloud Storage 的參考的代碼。

import { getStorage, ref, uploadBytesResumable, getDownloadURL } from "firebase/storage";

const storage = getStorage();
const storageRef = ref(storage, 'images/rivers.jpg');

const uploadTask = uploadBytesResumable(storageRef, file);

// Register three observers:
// 1. 'state_changed' observer, called any time the state changes
// 2. Error observer, called on failure
// 3. Completion observer, called on successful completion
uploadTask.on('state_changed', 
  (snapshot) => {
    // Observe state change events such as progress, pause, and resume
    // Get task progress, including the number of bytes uploaded and the total number of bytes to be uploaded
    const progress = (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
    console.log('Upload is ' + progress + '% done');
    switch (snapshot.state) {
      case 'paused':
        console.log('Upload is paused');
        break;
      case 'running':
        console.log('Upload is running');
        break;
    }
  }, 
  (error) => {
    // Handle unsuccessful uploads
  }, 
  () => {
    // Handle successful uploads on complete
    // For instance, get the download URL: https://firebasestorage.googleapis.com/...
    getDownloadURL(uploadTask.snapshot.ref).then((downloadURL) => {
      console.log('File available at', downloadURL);
    });
  }
);

TLTR：在uploadTask.on() 方法中執行只需要在離線時運行的代碼的標準方法是什麼（比如將文件上傳到本地存儲，直到可以建立連接）？

我假設離線時，在第一個“運行”案例被觸發後，下一個“state_changed”更新將是關於沒有互聯網連接並且會運行“暫停”案例。在這種情況下，我想編寫一些代碼以在離線時上傳文件的情況下執行。然而，這不會發生，並且“暫停”情況永遠不會在離線或中途失去連接時運行。錯誤回調也不會運行。代碼只是掛在那裡，直到可以建立連接。

在 uploadTask.on() 方法中執行只需要在離線時運行的代碼的標準方法是什麼（比如將文件上傳到本地存儲，直到可以建立連接）。

在此先感謝您的幫助！