feat: Add "Download All" button and outside-click close to gallery

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

app/app.py

@@ -20,6 +20,7 @@ import sqlite3
 import binascii
 import base64
 import mimetypes
+import zipfile
 import pytz
 from datetime import datetime
 from typing import Dict, List, Optional, Tuple
@@ -28,7 +29,7 @@ import math
 import logging
 import httpx
 from fastapi import FastAPI, UploadFile, WebSocket, WebSocketDisconnect, Request, Form
-from fastapi.responses import HTMLResponse, JSONResponse, FileResponse, RedirectResponse, Response
+from fastapi.responses import HTMLResponse, JSONResponse, FileResponse, RedirectResponse, Response, StreamingResponse
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.staticfiles import StaticFiles
 from starlette.websockets import WebSocketState
@@ -1385,6 +1386,37 @@ async def api_files_full(path_b64: str, request: Request):
     return FileResponse(file_path)
 
 
+@app.get("/api/files/zip/{path_b64}")
+async def api_files_zip(path_b64: str, request: Request):
+    if not request.session.get("accessToken"):
+        return Response(status_code=401)
+
+    try:
+        rel_path = base64.urlsafe_b64decode(path_b64).decode()
+        dir_path = os.path.join(UPLOAD_ROOT, rel_path)
+    except Exception:
+        return Response(status_code=400)
+
+    if not _is_safe_path(UPLOAD_ROOT, dir_path) or not os.path.isdir(dir_path):
+        return Response(status_code=404)
+
+    zip_buffer = io.BytesIO()
+    with zipfile.ZipFile(zip_buffer, "w", zipfile.ZIP_DEFLATED) as zip_file:
+        for filename in sorted(os.listdir(dir_path)):
+            file_path = os.path.join(dir_path, filename)
+            if os.path.isfile(file_path):
+                zip_file.write(file_path, filename)
+
+    zip_buffer.seek(0)
+    zip_filename = f"{os.path.basename(rel_path) or 'download'}.zip"
+
+    return StreamingResponse(
+        iter([zip_buffer.getvalue()]),
+        media_type="application/zip",
+        headers={"Content-Disposition": f"attachment; filename=\"{zip_filename}\""}
+    )
+
+
 # ---------- Invites (one-time/expiring links) ----------
 
 def ensure_invites_table() -> None:

frontend/menu.html

@@ -548,7 +548,10 @@
           <div class="max-w-6xl w-full h-[90vh] rounded-2xl bg-white dark:bg-gray-900 border dark:border-gray-700 p-4 flex flex-col">
             <div class="flex items-center justify-between mb-2">
               <div class="text-lg font-medium">Files</div>
-              <button class="dlgClose rounded-lg border px-2 py-1 text-xs dark:border-gray-600">Close</button>
+              <div class="flex items-center gap-2">
+                <a href="/api/files/zip/${path_b64}" class="rounded-lg border px-2 py-1 text-xs dark:border-gray-600">Download All</a>
+                <button class="dlgClose rounded-lg border px-2 py-1 text-xs dark:border-gray-600">Close</button>
+              </div>
             </div>
             <div class="flex-1 overflow-auto">
               ${files.length ? `<div class="grid grid-cols-2 sm:grid-cols-4 md:grid-cols-6 lg:grid-cols-8 gap-4">` + files.map(it => {
@@ -571,7 +574,10 @@
       wrap.innerHTML = html;
       const dlg = wrap.firstElementChild;
       document.body.appendChild(dlg);
-      dlg.querySelectorAll('.dlgClose').forEach(b => b.onclick = () => { try { dlg.remove(); } catch {} });
+
+      const close = () => { try { dlg.remove(); } catch {} };
+      dlg.onclick = (e) => { if (e.target === e.currentTarget) close(); };
+      dlg.querySelectorAll('.dlgClose').forEach(b => b.onclick = close);
     }
 
     btnFilesRefresh.onclick = loadDirs;