Add support for uploading multiple epubs (#202)

Upload multiple files at once in sequence. Add retry button for files
that fail

## Summary

* **What is the goal of this PR?**
Add support for selecting multiple epub files in one go, before
uploading them all to the device
* **What changes are included?**
Allow multiple selections to be submitted to the input field.
Sends each file to the device one by one in a loop
Adds retry logic and UI for easy re-trying of failed uploads

Addresses #201 


button now says "Choose Files", and shows the number of files you
selected
<img width="506" height="199" alt="image"
src="https://github.com/user-attachments/assets/64b0b921-1e67-438e-9cd7-57d5466f2456"
/>

Shows which file is uploading:
<img width="521" height="283" alt="image"
src="https://github.com/user-attachments/assets/17b4d349-0698-4712-984c-b72fcdcb0918"
/>

Failed upload dialog:
<img width="851" height="441" alt="image"
src="https://github.com/user-attachments/assets/e8bf4aa6-d3d2-4c0b-9c7a-420e8c413033"
/>
<img width="834" height="641" alt="image"
src="https://github.com/user-attachments/assets/656a9732-3963-4844-94e3-4d8736f6d9d5"
/>
This commit is contained in:
Jake Lyell 2026-01-02 18:32:26 +11:00 committed by GitHub
parent 5e9626eb2a
commit 062d69dc2a
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@ -341,6 +341,90 @@
width: 60px;
text-align: center;
}
/* Failed uploads banner */
.failed-uploads-banner {
background-color: #fff3cd;
border: 1px solid #ffc107;
border-radius: 4px;
padding: 15px;
margin-bottom: 15px;
display: none;
}
.failed-uploads-banner.show {
display: block;
}
.failed-uploads-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 10px;
}
.failed-uploads-title {
font-weight: 600;
color: #856404;
margin: 0;
}
.dismiss-btn {
background: none;
border: none;
font-size: 1.2em;
cursor: pointer;
color: #856404;
padding: 0;
line-height: 1;
}
.dismiss-btn:hover {
color: #533f03;
}
.failed-file-item {
display: flex;
justify-content: space-between;
align-items: center;
padding: 8px 0;
border-bottom: 1px solid #ffe69c;
}
.failed-file-item:last-child {
border-bottom: none;
}
.failed-file-info {
flex: 1;
}
.failed-file-name {
font-weight: 500;
color: #856404;
}
.failed-file-error {
font-size: 0.85em;
color: #856404;
opacity: 0.8;
}
.retry-btn {
background-color: #ffc107;
color: #533f03;
border: none;
padding: 6px 12px;
border-radius: 4px;
cursor: pointer;
font-size: 0.9em;
font-weight: 600;
}
.retry-btn:hover {
background-color: #e0a800;
}
.retry-all-btn {
background-color: #ffc107;
color: #533f03;
border: none;
padding: 8px 16px;
border-radius: 4px;
cursor: pointer;
font-size: 0.95em;
font-weight: 600;
margin-top: 10px;
}
.retry-all-btn:hover {
background-color: #e0a800;
}
/* Delete modal */
.delete-warning {
color: #e74c3c;
@ -505,6 +589,16 @@
</div>
</div>
<!-- Failed Uploads Banner -->
<div class="failed-uploads-banner" id="failedUploadsBanner">
<div class="failed-uploads-header">
<h3 class="failed-uploads-title">⚠️ Some files failed to upload</h3>
<button class="dismiss-btn" onclick="dismissFailedUploads()" title="Dismiss">&times;</button>
</div>
<div id="failedFilesList"></div>
<button class="retry-all-btn" onclick="retryAllFailedUploads()">Retry All Failed Uploads</button>
</div>
<div class="card">
<div class="contents-header">
<h2 class="contents-title">Contents</h2>
@ -531,7 +625,7 @@
<h3>📤 Upload file</h3>
<div class="upload-form">
<p class="file-info">Select a file to upload to <strong id="uploadPathDisplay"></strong></p>
<input type="file" id="fileInput" onchange="validateFile()">
<input type="file" id="fileInput" onchange="validateFile()" multiple>
<button id="uploadBtn" class="upload-btn" onclick="uploadFile()" disabled>Upload</button>
<div id="progress-container">
<div id="progress-bar"><div id="progress-fill"></div></div>
@ -717,65 +811,183 @@
function validateFile() {
const fileInput = document.getElementById('fileInput');
const uploadBtn = document.getElementById('uploadBtn');
const file = fileInput.files[0];
uploadBtn.disabled = !file;
const files = fileInput.files;
uploadBtn.disabled = !(files.length > 0);
}
function uploadFile() {
const fileInput = document.getElementById('fileInput');
const file = fileInput.files[0];
let failedUploadsGlobal = [];
if (!file) {
alert('Please select a file first!');
function uploadFile() {
const fileInput = document.getElementById('fileInput');
const files = Array.from(fileInput.files);
if (files.length === 0) {
alert('Please select at least one file!');
return;
}
const progressContainer = document.getElementById('progress-container');
const progressFill = document.getElementById('progress-fill');
const progressText = document.getElementById('progress-text');
const uploadBtn = document.getElementById('uploadBtn');
progressContainer.style.display = 'block';
uploadBtn.disabled = true;
let currentIndex = 0;
const failedFiles = [];
function uploadNextFile() {
if (currentIndex >= files.length) {
// All files processed - show summary
if (failedFiles.length === 0) {
progressFill.style.backgroundColor = '#4caf50';
progressText.textContent = 'All uploads complete!';
setTimeout(() => {
closeUploadModal();
hydrate(); // Refresh file list instead of reloading
}, 1000);
} else {
progressFill.style.backgroundColor = '#e74c3c';
const failedList = failedFiles.map(f => f.name).join(', ');
progressText.textContent = `${files.length - failedFiles.length}/${files.length} uploaded. Failed: ${failedList}`;
// Store failed files globally and show banner
failedUploadsGlobal = failedFiles;
setTimeout(() => {
closeUploadModal();
showFailedUploadsBanner();
hydrate(); // Refresh file list to show successfully uploaded files
}, 2000);
}
return;
}
const file = files[currentIndex];
const formData = new FormData();
formData.append('file', file);
const progressContainer = document.getElementById('progress-container');
const progressFill = document.getElementById('progress-fill');
const progressText = document.getElementById('progress-text');
const uploadBtn = document.getElementById('uploadBtn');
progressContainer.style.display = 'block';
uploadBtn.disabled = true;
const xhr = new XMLHttpRequest();
// Include path as query parameter since multipart form data doesn't make
// form fields available until after file upload completes
xhr.open('POST', '/upload?path=' + encodeURIComponent(currentPath), true);
xhr.upload.onprogress = function(e) {
progressFill.style.width = '0%';
progressFill.style.backgroundColor = '#4caf50';
progressText.textContent = `Uploading ${file.name} (${currentIndex + 1}/${files.length})`;
xhr.upload.onprogress = function (e) {
if (e.lengthComputable) {
const percent = Math.round((e.loaded / e.total) * 100);
progressFill.style.width = percent + '%';
progressText.textContent = 'Uploading: ' + percent + '%';
progressText.textContent =
`Uploading ${file.name} (${currentIndex + 1}/${files.length}) — ${percent}%`;
}
};
xhr.onload = function() {
xhr.onload = function () {
if (xhr.status === 200) {
progressText.textContent = 'Upload complete!';
setTimeout(function() {
window.location.reload();
}, 1000);
currentIndex++;
uploadNextFile(); // upload next file
} else {
progressText.textContent = 'Upload failed: ' + xhr.responseText;
progressFill.style.backgroundColor = '#e74c3c';
uploadBtn.disabled = false;
// Track failure and continue with next file
failedFiles.push({ name: file.name, error: xhr.responseText, file: file });
currentIndex++;
uploadNextFile();
}
};
xhr.onerror = function() {
progressText.textContent = 'Upload failed - network error';
progressFill.style.backgroundColor = '#e74c3c';
uploadBtn.disabled = false;
xhr.onerror = function () {
// Track network error and continue with next file
failedFiles.push({ name: file.name, error: 'network error', file: file });
currentIndex++;
uploadNextFile();
};
xhr.send(formData);
}
uploadNextFile();
}
function showFailedUploadsBanner() {
const banner = document.getElementById('failedUploadsBanner');
const filesList = document.getElementById('failedFilesList');
filesList.innerHTML = '';
failedUploadsGlobal.forEach((failedFile, index) => {
const item = document.createElement('div');
item.className = 'failed-file-item';
item.innerHTML = `
<div class="failed-file-info">
<div class="failed-file-name">📄 ${escapeHtml(failedFile.name)}</div>
<div class="failed-file-error">Error: ${escapeHtml(failedFile.error)}</div>
</div>
<button class="retry-btn" onclick="retrySingleUpload(${index})">Retry</button>
`;
filesList.appendChild(item);
});
// Ensure retry all button is visible
const retryAllBtn = banner.querySelector('.retry-all-btn');
if (retryAllBtn) retryAllBtn.style.display = '';
banner.classList.add('show');
}
function dismissFailedUploads() {
const banner = document.getElementById('failedUploadsBanner');
banner.classList.remove('show');
failedUploadsGlobal = [];
}
function retrySingleUpload(index) {
const failedFile = failedUploadsGlobal[index];
if (!failedFile) return;
// Create a DataTransfer to set the file input
const dt = new DataTransfer();
dt.items.add(failedFile.file);
const fileInput = document.getElementById('fileInput');
fileInput.files = dt.files;
// Remove this file from failed list
failedUploadsGlobal.splice(index, 1);
// If no more failed files, hide banner
if (failedUploadsGlobal.length === 0) {
dismissFailedUploads();
}
// Open modal and trigger upload
openUploadModal();
validateFile();
}
function retryAllFailedUploads() {
if (failedUploadsGlobal.length === 0) return;
// Create a DataTransfer with all failed files
const dt = new DataTransfer();
failedUploadsGlobal.forEach(failedFile => {
dt.items.add(failedFile.file);
});
const fileInput = document.getElementById('fileInput');
fileInput.files = dt.files;
// Clear failed files list
failedUploadsGlobal = [];
dismissFailedUploads();
// Open modal and trigger upload
openUploadModal();
validateFile();
}
function createFolder() {
const folderName = document.getElementById('folderName').value.trim();