fix(a11y): add Dialog titles/descriptions and missing index.code key

Closes #7835.

- src/locales/en.json: add `index.code` (referenced by src/templates/index.html
  for the session-receive code input but never defined, producing a
  "Couldn't find translation key" console error on the landing page).
- admin/src/utils/LoadingScreen.tsx, admin/src/pages/PadPage.tsx,
  admin/src/pages/AuthorPage.tsx: every @radix-ui/react-dialog `Dialog.Content`
  now has a `Dialog.Title` and `Dialog.Description` (visually hidden via
  `@radix-ui/react-visually-hidden` where there is no visible heading),
  silencing Radix's a11y console warnings on every admin page load.
- src/tests/backend-new/specs/template-l10n-keys.test.ts: regression
  coverage — fails CI if any `data-l10n-id` in `src/templates/*.html` is
  missing from `src/locales/en.json`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: JohnMcLear

admin/package.json

@@ -24,6 +24,7 @@
   "devDependencies": {
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-toast": "^1.2.15",
+    "@radix-ui/react-visually-hidden": "^1.2.3",
     "@types/react": "^19.2.15",
     "@types/react-dom": "^19.2.3",
     "@typescript-eslint/eslint-plugin": "^8.59.4",

admin/public/ep_admin_authors/en.json

@@ -14,6 +14,8 @@
   "cap-warning": "Showing the first 1000 authors. Narrow your search to see more.",
   "feature-disabled-banner": "Author erasure is disabled. Set \"gdprAuthorErasure\": {\"enabled\": true} in settings.json to enable.",
   "no-results": "No authors match this search.",
+  "confirm-dialog-title": "Confirm author erasure",
+  "confirm-dialog-description": "Review the impact of erasing this author and confirm or cancel.",
   "confirm-preview-title": "Erase author {{name}}",
   "confirm-preview-counters": "Will clear {{tokenMappings}} token mappings, {{externalMappings}} mapper bindings, and {{chatMessages}} chat messages across {{affectedPads}} pads.",
   "confirm-irreversible": "This cannot be undone.",

admin/src/pages/AuthorPage.tsx

@@ -1,6 +1,7 @@
 import {Trans, useTranslation} from "react-i18next";
 import {useEffect, useMemo, useState} from "react";
 import * as Dialog from "@radix-ui/react-dialog";
+import {VisuallyHidden} from "@radix-ui/react-visually-hidden";
 import {ChevronLeft, ChevronRight, Trash2} from "lucide-react";
 import {useStore} from "../store/store.ts";
 import {SearchField} from "../components/SearchField.tsx";
@@ -153,16 +154,20 @@ export const AuthorPage = () => {
       <Dialog.Portal>
         <Dialog.Overlay className="dialog-confirm-overlay"/>
         <Dialog.Content className="dialog-confirm-content">
+          <VisuallyHidden asChild>
+            <Dialog.Title>{t('ep_admin_authors:confirm-dialog-title')}</Dialog.Title>
+          </VisuallyHidden>
+          <VisuallyHidden asChild>
+            <Dialog.Description>{t('ep_admin_authors:confirm-dialog-description')}</Dialog.Description>
+          </VisuallyHidden>
           {dialog.phase === 'loading-preview' && <div>
             <Trans i18nKey="ep_admin_authors:loading-preview" ns="ep_admin_authors"/>
           </div>}
           {(dialog.phase === 'preview' || dialog.phase === 'committing') && (() => {
             const p = dialog.preview;
             return <div>
-              <Dialog.Title asChild>
-                <h3>{t('ep_admin_authors:confirm-preview-title',
-                    {name: p.name || p.authorID})}</h3>
-              </Dialog.Title>
+              <h3>{t('ep_admin_authors:confirm-preview-title',
+                  {name: p.name || p.authorID})}</h3>
               <p>{t('ep_admin_authors:confirm-preview-counters', {
                 tokenMappings: p.removedTokenMappings,
                 externalMappings: p.removedExternalMappings,

admin/src/pages/PadPage.tsx

@@ -4,6 +4,7 @@ import {useStore} from "../store/store.ts";
 import {PadFilter, PadSearchQuery, PadSearchResult} from "../utils/PadSearch.ts";
 import {useDebounce} from "../utils/useDebounce.ts";
 import * as Dialog from "@radix-ui/react-dialog";
+import {VisuallyHidden} from "@radix-ui/react-visually-hidden";
 import {ChevronLeft, ChevronRight, Eye, Trash2, FileStack, PlusIcon, Search, X, RefreshCw, History} from "lucide-react";
 import {useForm} from "react-hook-form";
 import type {TFunction} from "i18next";
@@ -165,7 +166,10 @@ export const PadPage = () => {
         <Dialog.Portal>
           <Dialog.Overlay className="dialog-confirm-overlay"/>
           <Dialog.Content className="dialog-confirm-content">
-            <div>{t('ep_admin_pads:ep_adminpads2_confirm', {padID: padToDelete})}</div>
+            <VisuallyHidden asChild><Dialog.Title>{t('admin_pads.delete_pad_dialog_title')}</Dialog.Title></VisuallyHidden>
+            <Dialog.Description asChild>
+              <div>{t('ep_admin_pads:ep_adminpads2_confirm', {padID: padToDelete})}</div>
+            </Dialog.Description>
             <div className="settings-button-bar">
               <button onClick={() => setDeleteDialog(false)}><Trans i18nKey="admin_pads.cancel"/></button>
               <button onClick={() => { deletePad(padToDelete); setDeleteDialog(false) }}>{t('admin_pads.confirm_button')}</button>
@@ -178,7 +182,10 @@ export const PadPage = () => {
         <Dialog.Portal>
           <Dialog.Overlay className="dialog-confirm-overlay"/>
           <Dialog.Content className="dialog-confirm-content">
-            <div>{t('admin_pads.error_prefix')}: {errorText}</div>
+            <VisuallyHidden asChild><Dialog.Title>{t('admin_pads.error_prefix')}</Dialog.Title></VisuallyHidden>
+            <Dialog.Description asChild>
+              <div>{t('admin_pads.error_prefix')}: {errorText}</div>
+            </Dialog.Description>
             <div className="settings-button-bar">
               <button onClick={() => setErrorText(null)}>{t('admin_pads.confirm_button')}</button>
             </div>
@@ -191,6 +198,7 @@ export const PadPage = () => {
           <Dialog.Overlay className="dialog-confirm-overlay"/>
           <Dialog.Content className="dialog-confirm-content">
             <Dialog.Title className="dialog-confirm-title"><Trans i18nKey="index.newPad"/></Dialog.Title>
+            <VisuallyHidden asChild><Dialog.Description>{t('admin_pads.create_pad_dialog_description')}</Dialog.Description></VisuallyHidden>
             <form onSubmit={handleSubmit(onPadCreate)}>
               <button className="dialog-close-button" type="button" onClick={() => setCreatePadDialogOpen(false)}>×</button>
               <div style={{display: 'grid', gap: '10px', gridTemplateColumns: 'auto auto', marginBottom: '1rem'}}>

admin/src/utils/LoadingScreen.tsx

@@ -1,13 +1,18 @@
 import {useStore} from "../store/store.ts";
 import * as Dialog from '@radix-ui/react-dialog';
+import {VisuallyHidden} from '@radix-ui/react-visually-hidden';
+import {useTranslation} from 'react-i18next';
 import brand from './brand.svg'
 
 export const LoadingScreen = ()=>{
   const showLoading = useStore(state => state.showLoading)
+  const {t} = useTranslation()
 
   return <Dialog.Root open={showLoading}><Dialog.Portal>
     <Dialog.Overlay className="loading-screen fixed inset-0 bg-black bg-opacity-50 z-50 dialog-overlay" />
     <Dialog.Content  className="fixed top-1/2 left-1/2 transform -translate-x-1/2 -translate-y-1/2 z-50 dialog-content">
+      <VisuallyHidden asChild><Dialog.Title>{t('admin.loading')}</Dialog.Title></VisuallyHidden>
+      <VisuallyHidden asChild><Dialog.Description>{t('admin.loading_description')}</Dialog.Description></VisuallyHidden>
       <div className="flex flex-col items-center">
         <div className="animate-spin w-16 h-16 border-t-2 border-b-2 border-[--fg-color] rounded-full"></div>
         <div className="mt-4 text-[--fg-color]">

pnpm-lock.yaml

@@ -1,6 +1,7 @@
 {
   "admin.page-title": "Admin Dashboard - Etherpad",
   "admin.loading": "Loading…",
+  "admin.loading_description": "Please wait while the page is loading.",
   "admin.toggle_sidebar": "Toggle sidebar",
   "admin.shout": "Communication",
   "admin_shout.online_one": "There is currently {{count}} user online",
@@ -20,7 +21,11 @@
   "admin_pads.col.revisions": "Revisions",
   "admin_pads.col.users": "Users",
   "admin_pads.confirm_button": "OK",
+  "admin_pads.create_pad_dialog_description": "Choose a name for the new pad.",
+  "admin_pads.delete_pad_dialog_description": "Confirm or cancel pad deletion.",
+  "admin_pads.delete_pad_dialog_title": "Delete pad",
   "admin_pads.empty_never_edited": "empty · never edited",
+  "admin_pads.error_dialog_description": "An error has occurred.",
   "admin_pads.error_prefix": "Error",
   "admin_pads.filter.active": "Active",
   "admin_pads.filter.all": "All",
@@ -217,6 +222,7 @@
   "index.copyLinkButton": "Copy link to clipboard",
   "index.transferToSystem": "3. Copy session to new system",
   "index.transferToSystemDescription": "Open the copied link in the target browser or device to transfer your session.",
+  "index.code": "Code",
   "index.transferSessionDescription": "Transfer your current session to browser or device by clicking the button below. This will copy a link to a page that will transfer your session when opened in the target browser or device.",
   "index.createOpenPad": "Open pad by name",
   "index.openPad": "open an existing Pad with the name:",

src/locales/en.json

@@ -0,0 +1,40 @@
+'use strict';
+
+// Regression: src/templates/index.html referenced `data-l10n-id="index.code"`
+// but src/locales/en.json had no `index.code` key, producing a "Couldn't find
+// translation key index.code" console error on the landing page (issue #7835).
+// This test asserts every data-l10n-id attribute in our shipped templates has
+// a matching source string in en.json so the class of bug fails in CI.
+
+import {readFileSync, readdirSync} from 'fs';
+import {join} from 'path';
+import {describe, it, expect} from 'vitest';
+
+const repoRoot = join(__dirname, '..', '..', '..', '..');
+const templatesDir = join(repoRoot, 'src', 'templates');
+const enJsonPath = join(repoRoot, 'src', 'locales', 'en.json');
+
+const en = JSON.parse(readFileSync(enJsonPath, 'utf8')) as Record<string, string>;
+
+const collectKeys = (html: string): string[] => {
+  const out: string[] = [];
+  const re = /data-l10n-id="([^"]+)"/g;
+  let m;
+  while ((m = re.exec(html)) !== null) out.push(m[1]);
+  return out;
+};
+
+const templateFiles = readdirSync(templatesDir)
+    .filter((f) => f.endsWith('.html'))
+    .map((f) => join(templatesDir, f));
+
+describe('template l10n keys', () => {
+  for (const file of templateFiles) {
+    it(`every data-l10n-id in ${file.replace(repoRoot + '/', '')} exists in en.json`, () => {
+      const html = readFileSync(file, 'utf8');
+      const keys = collectKeys(html);
+      const missing = keys.filter((k) => !(k in en));
+      expect(missing, `missing keys in en.json: ${missing.join(', ')}`).toEqual([]);
+    });
+  }
+});