ui: ignore download if no problem selected

packages/ui-default/components/zipDownloader/index.js

@@ -66,6 +66,7 @@ export default async function download(name, targets) {
 export async function downloadProblemSet(pids, name = 'Export') {
   Notification.info('Downloading...');
   const targets = [];
+  try {
     for (const pid of pids) {
       const { pdoc } = await request.get(`/d/${UiContext.domainId}/p/${pid}`);
       targets.push({
@@ -86,9 +87,7 @@ export async function downloadProblemSet(pids, name = 'Export') {
       let { links } = await request.post(
         `/d/${UiContext.domainId}/p/${pid}/files`,
         { operation: 'get_links', files: (pdoc.data || []).map((i) => i.name), type: 'testdata' }
-    ).catch((e) => {
+      );
-      Notification.warn(`${e.error.message} ${e.error.params[0]}`);
-    });
       for (const filename of Object.keys(links)) {
         targets.push({ filename: `${pid}/testdata/${filename}`, url: links[filename] });
       }
@@ -100,6 +99,9 @@ export async function downloadProblemSet(pids, name = 'Export') {
       }
     }
     await download(`${name}.zip`, targets);
+  } catch (e) {
+    Notification.warn(`${e.error.message} ${e.error.params[0]}`);
+  }
 }
 
 window.Hydro.components.downloadProblemSet = downloadProblemSet;

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.11.22",
+  "version": "4.11.23",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",

packages/ui-default/pages/problem_main.page.js

@@ -196,7 +196,7 @@ async function handleDownload(ev) {
   // eslint-disable-next-line no-alert
   if (ev.shiftKey) name = prompt('Filename:', name);
   const pids = ensureAndGetSelectedPids();
-  await downloadProblemSet(pids, name);
+  if (pids) await downloadProblemSet(pids, name);
 }
 
 const page = new NamedPage(['problem_main', 'problem_category'], () => {