Store: one tab combining books, free audiobooks and radio, plus My Store for your own books, music, apps and sandboxed extensions

- Store tab with sections; the book store, LibriVox and radio finder are shown inside it (old entry points redirect)
- My Store: admin uploads files or copies from Seafile; books go to a person's shelf, music plays in the player, apps download
- Extensions: one HTML file run in a sandboxed frame with a small storage/toast/user bridge; example in docs/extensions

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/app.js

@@ -93,6 +93,8 @@ const ICONS = {
   shuffle: '<path d="M3 7h3c4 0 5 10 9 10h6M3 17h3c1.5 0 2.5-1.5 3.5-3M15 7h6M18 4l3 3-3 3M18 14l3 3-3 3"/>',
   more: '<circle cx="5" cy="12" r="1.6" fill="currentColor"/><circle cx="12" cy="12" r="1.6" fill="currentColor"/><circle cx="19" cy="12" r="1.6" fill="currentColor"/>',
   cal: '<rect x="3" y="5" width="18" height="16" rx="2"/><path d="M3 10h18M8 3v4M16 3v4"/>',
+  store: '<path d="M4 9l1.5-5h13L20 9M4 9v11h16V9M4 9c0 1.7 1.3 3 3 3s3-1.3 3-3c0 1.7 1.3 3 3 3s3-1.3 3-3 1.3 3 3 3"/><path d="M10 20v-5h4v5"/>',
+  download: '<path d="M12 4v11M7 11l5 5 5-5M5 20h14"/>',
   chef: '<path d="M7 14a4 4 0 11.8-7.9A4 4 0 0116 6.5 4 4 0 0117 14v6H7z"/><path d="M7 17h10"/>',
   people: '<circle cx="9" cy="8" r="3.5"/><path d="M2.5 20a6.5 6.5 0 0113 0M16 4.5a3.5 3.5 0 010 7M18 14a6 6 0 013.5 6"/>',
   search: '<circle cx="11" cy="11" r="7"/><path d="M20 20l-4-4"/>',
@@ -162,8 +164,8 @@ const fmtSize = b => b < 1024 ? b + ' B' : b < 1048576 ? (b / 1024).toFixed(0) +
 const fmtDate = s => new Date(s * 1000).toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' });
 
 // ---- Navigation
-const TABS = [['home', 'Home'], ['files', 'Files'], ['music', 'Music'], ['video', 'Movies & TV'], ['mail', 'Mail'], ['contacts', 'Contacts'], ['signal', 'Signal'], ['tasks', 'Tasks'], ['recipes', 'Recipes'], ['calendar', 'Calendar'], ['search', 'Search'], ['links', 'Links'], ['office', 'Office'], ['audio', 'Audiobooks'], ['podcast', 'Podcast'], ['radio', 'Radio'], ['bible', 'Bible'], ['read', 'Books'], ['verse', 'Podcast Admin'], ['settings', 'Settings']];
-const TAB_ICON = { home: 'home', mail: 'mail', signal: 'chat', files: 'files', office: 'doc', audio: 'audio', verse: 'book', podcast: 'mic', radio: 'radio', bible: 'bible', recipes: 'chef', contacts: 'people', listen: 'audio', reading: 'book', read: 'book', music: 'music', video: 'film', settings: 'cog', calendar: 'cal', search: 'search', tasks: 'check', links: 'link', planner: 'cal' };
+const TABS = [['home', 'Home'], ['files', 'Files'], ['music', 'Music'], ['video', 'Movies & TV'], ['mail', 'Mail'], ['contacts', 'Contacts'], ['signal', 'Signal'], ['tasks', 'Tasks'], ['recipes', 'Recipes'], ['store', 'Store'], ['calendar', 'Calendar'], ['search', 'Search'], ['links', 'Links'], ['office', 'Office'], ['audio', 'Audiobooks'], ['podcast', 'Podcast'], ['radio', 'Radio'], ['bible', 'Bible'], ['read', 'Books'], ['verse', 'Podcast Admin'], ['settings', 'Settings']];
+const TAB_ICON = { home: 'home', mail: 'mail', signal: 'chat', files: 'files', office: 'doc', audio: 'audio', verse: 'book', podcast: 'mic', radio: 'radio', bible: 'bible', recipes: 'chef', contacts: 'people', store: 'store', listen: 'audio', reading: 'book', read: 'book', music: 'music', video: 'film', settings: 'cog', calendar: 'cal', search: 'search', tasks: 'check', links: 'link', planner: 'cal' };
 /** The menu entries this person sees: Calendar and Tasks share one "Planner" entry, and the listening and reading tabs share "Listen" and "Read" (each part still needs its own permission). */
 const leafOf = id => Object.keys(MERGED).find(k => MERGED[k][1].includes(id));
 const navTabs = () => { const out = [], done = new Set(); for (const t of TABS) { if (t[0] === 'verse' || !allowed(t[0])) continue; let id = t[0], label = t[1];
@@ -173,14 +175,14 @@ const navTabs = () => { const out = [], done = new Set(); for (const t of TABS)
 const leafTabs = () => TABS.filter(t => t[0] !== 'verse' && t[0] !== 'home' && allowed(t[0]));
 const tabLabel = id => (TABS.find(x => x[0] === id) || (MERGED[id] ? [0, MERGED[id][0]] : id === 'planner' ? [0, 'Planner'] : [0, '']))[1];
 /** Menu entries grouped by kind. Anything not listed lands in the last group so a new tab is never lost. */
-const NAV_GROUPS = [['', ['home', 'search']], ['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Media', ['listen', 'reading', 'video']], ['', ['settings']]];
+const NAV_GROUPS = [['', ['home', 'search']], ['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Media', ['listen', 'reading', 'video', 'store']], ['', ['settings']]];
 const navGroups = (tabs = navTabs()) => {
   const out = NAV_GROUPS.map(([label, ids]) => ({ label, tabs: ids.map(id => tabs.find(t => t[0] === id)).filter(Boolean) }));
   const known = new Set(NAV_GROUPS.flatMap(g => g[1])); out[out.length - 2].tabs.push(...tabs.filter(t => !known.has(t[0])));
   return out.filter(g => g.tabs.length);
 };
 const sg = { st: null, convs: [], cur: null, unread: 0, es: null, timers: [], reply: null, tray: [], names: {} }; // Signal state
-const TAB_COLOR = { home: '#3d6bf0', search: '#6b7280', planner: '#d9453a', tasks: '#d9453a', calendar: '#d9453a', files: '#2f9e6e', office: '#e0742b', links: '#0f9d9a', mail: '#4f7cff', signal: '#3a76f0', listen: '#8a5cf0', music: '#e5a00d', radio: '#7b4fd6', recipes: '#e0742b', contacts: '#5b8def', podcast: '#c2417a', audio: '#8a5cf0', video: '#c0392b', reading: '#2b8a5e', bible: '#8b5a2b', read: '#2b8a5e', settings: '#6a7280' };
+const TAB_COLOR = { home: '#3d6bf0', search: '#6b7280', planner: '#d9453a', tasks: '#d9453a', calendar: '#d9453a', files: '#2f9e6e', office: '#e0742b', links: '#0f9d9a', mail: '#4f7cff', signal: '#3a76f0', listen: '#8a5cf0', music: '#e5a00d', radio: '#7b4fd6', store: '#d9822b', recipes: '#e0742b', contacts: '#5b8def', podcast: '#c2417a', audio: '#8a5cf0', video: '#c0392b', reading: '#2b8a5e', bible: '#8b5a2b', read: '#2b8a5e', settings: '#6a7280' };
 // The phone's bottom bar shows up to five entries you choose (Edit bottom bar, in the Apps sheet), then "More".
 const DEFAULT_PINS = ['home', 'files', 'planner', 'listen', 'mail'];
 const navPins = () => { const have = new Set(navTabs().map(t => t[0])), saved = store.get('nav_pins'); const out = (Array.isArray(saved) && saved.length ? saved : DEFAULT_PINS).filter(id => have.has(id)).slice(0, 5); return out.length ? out : [...have].slice(0, 4); };
@@ -250,7 +252,7 @@ function drawSubnav(name) {
 const navIdOf = name => name === 'edit' ? 'files' : (name === 'tasks' || name === 'calendar') ? 'planner' : leafOf(name) || name;
 let curRoute = '';
 
-const routesOf = () => ({ video: viewVideo, planner: viewPlanner, home: viewHome, mail: viewMail, files: viewFiles, office: viewOffice, audio: args => args[0] === 'classic' ? viewAudio() : args[0] === 'free' ? viewFreeBooks() : viewBooks(args), verse: () => location.replace('#/links'), podcast: args => args[0] === 'vbv' ? viewVbv(args.slice(1)) : viewPodcast(args), radio: viewRadio, recipes: args => viewRecipes(args), contacts: args => viewContacts(args), bible: args => viewBible(args), listen: () => location.replace('#/' + lastSub('listen')), reading: () => location.replace('#/' + lastSub('reading')), read: args => viewReader(args), music: viewMusic, tasks: viewTasks, search: viewSearch, calendar: viewCalendar, signal: viewSignal, links: viewLinks, settings: viewSettings, edit: viewEdit });
+const routesOf = () => ({ video: viewVideo, planner: viewPlanner, home: viewHome, mail: viewMail, files: viewFiles, office: viewOffice, audio: args => args[0] === 'classic' ? viewAudio() : args[0] === 'free' ? (allowed('store') ? location.replace('#/store/audiobooks') : viewFreeBooks()) : viewBooks(args), verse: () => location.replace('#/links'), podcast: args => args[0] === 'vbv' ? viewVbv(args.slice(1)) : viewPodcast(args), radio: viewRadio, recipes: args => viewRecipes(args), store: args => viewStore(args), contacts: args => viewContacts(args), bible: args => viewBible(args), listen: () => location.replace('#/' + lastSub('listen')), reading: () => location.replace('#/' + lastSub('reading')), read: args => viewReader(args), music: viewMusic, tasks: viewTasks, search: viewSearch, calendar: viewCalendar, signal: viewSignal, links: viewLinks, settings: viewSettings, edit: viewEdit });
 let editor;
 // Menu on a tablet or computer: collapse it to icons (wide screens), or hide it completely. Remembered on this device.
 const navPref = () => { try { return JSON.parse(localStorage.getItem('nav_pref')) || {}; } catch { return {}; } };
@@ -318,6 +320,7 @@ function homeApps() {
     office: () => tile('#/office', '#e0742b', 'doc', 'Office', 'OnlyOffice'),
     audio: () => tile('#/audio', '#8a5cf0', 'audio', 'Audiobooks', 'Listen'),
     podcast: () => tile('#/podcast', '#c2417a', 'mic', 'Podcast', 'Podcasts'),
+    store: () => tile('#/store', '#d9822b', 'store', 'Store', 'Books, audiobooks, radio & more'),
     recipes: () => tile('#/recipes', '#e0742b', 'chef', 'Recipes', 'Mealie & shopping list'),
     contacts: () => tile('#/contacts', '#5b8def', 'people', 'Contacts', 'People & birthdays'),
     radio: () => tile('#/radio', '#7b4fd6', 'radio', 'Radio', 'The Journey FM & more'),
@@ -327,7 +330,7 @@ function homeApps() {
     mail: () => tile('#/mail', '#4f7cff', 'mail', 'Mail', mailUnread ? mailUnread + ' unread' : 'Outlook.com'),
   };
   T.bible = () => tile('#/bible', '#8b5a2b', 'bible', 'Bible', 'Berean Standard Bible');
-  const HOME_GROUPS = [['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Listen', ['music', 'radio', 'podcast', 'audio']], ['Read and watch', ['bible', 'read', 'video']]];
+  const HOME_GROUPS = [['Work', ['planner', 'files', 'office', 'links', 'recipes']], ['Communicate', ['mail', 'contacts', 'signal']], ['Listen', ['music', 'radio', 'podcast', 'audio']], ['Read and watch', ['bible', 'read', 'video', 'store']]];
   return HOME_GROUPS.map(([label, ids]) => [label, ids.filter(id => T[id] && allowed(id))]).filter(g => g[1].length).map(([label, ids]) => `<h2>${esc(label)}</h2><div class="grid">${ids.map(id => T[id]()).join('')}</div>`).join('');
 }
 

public/index.html

@@ -76,6 +76,7 @@
 <script src="/audiobooks-view.js"></script>
 <script src="/librivox-view.js"></script>
 <script src="/radio-view.js"></script>
+<script src="/store-view.js"></script>
 <script src="/recipes-view.js"></script>
 <script src="/contacts-view.js"></script>
 <script src="/bible-view.js"></script>

public/librivox-view.js

@@ -46,13 +46,13 @@ function lvPlay(b, at) {
   lvApi('/shelf', lvOpt('POST', { id: b.id })).catch(() => {}); // a book you start is kept on your shelf
 }
 
-async function viewFreeBooks() {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Free audiobooks</h1><p class="empty">Loading…</p></div>';
+async function viewFreeBooks(host) { // host: { el, hash } when shown inside the Store tab
+  const v = host ? host.el : $('#view'), here = () => location.hash.startsWith(host ? host.hash : '#/audio/free'); v.innerHTML = '<div class="wrap"><h1>Free audiobooks</h1><p class="empty">Loading…</p></div>';
   try { lvShelf = await lvApi('/shelf'); await lvLoadProg(); } catch (e) { v.innerHTML = `<div class="wrap"><a class="btn ghost" href="#/audio">${icon('back')}Audiobooks</a><p class="err">${esc(e.message)}</p></div>`; return; }
-  if (!location.hash.startsWith('#/audio/free')) return;
+  if (!here()) return;
   const S = { q: '', page: 1, items: [], more: false, busy: false, seq: 0 };
   const card = b => lvCard(b);
-  v.innerHTML = `<div class="wrap"><div class="ptop"><a class="btn ghost" href="#/audio">${icon('back')}Audiobooks</a><h1 style="margin:0">Free audiobooks</h1></div>
+  v.innerHTML = `<div class="wrap">${host ? '' : `<div class="ptop"><a class="btn ghost" href="#/audio">${icon('back')}Audiobooks</a><h1 style="margin:0">Free audiobooks</h1></div>`}
     <p class="sub">Public-domain books read aloud by volunteers (LibriVox). Free, with no sign-in. A book you start is kept on your shelf.</p>
     <input type="search" id="lvq" placeholder="Search by title or author" autocomplete="off" autocapitalize="off" style="width:100%"><div id="lvnote"></div><div id="lvbody"></div><div id="lvmore" class="bar" style="justify-content:center"></div></div>`;
   const known = new Map(lvShelf.map(b => [b.id, b]));

public/music.js

@@ -13,7 +13,7 @@ const px = {
     if (!r.ok) throw new Error('Plex error ' + r.status);
     return (await r.json()).MediaContainer || {};
   },
-  art: (thumb, w = 300) => thumb && /^\/api\/(podcast|ab|radio|vbv)\//.test(thumb) ? thumb : thumb ? `/plex/photo/:/transcode?width=${w}&height=${w}&minSize=1&upscale=1&url=${encodeURIComponent(thumb)}` : 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==',
+  art: (thumb, w = 300) => thumb && /^\/api\/(podcast|ab|radio|vbv|store)\//.test(thumb) ? thumb : thumb ? `/plex/photo/:/transcode?width=${w}&height=${w}&minSize=1&upscale=1&url=${encodeURIComponent(thumb)}` : 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==',
   // All music libraries on the server; the chosen one is remembered per server.
   async sections() {
     if (px.secs) return px.secs;

public/radio-view.js

@@ -38,17 +38,17 @@ function rdoApplyNow(t, n) {
 setInterval(rdoPoll, 10000); pl.a.addEventListener('playing', () => { if (rdoPlaying()) setTimeout(rdoPoll, 1500); });
 function rdoDrawNow(el, n) { el.innerHTML = n && n.title ? `<small>Now playing</small><b>${esc(n.title)}</b>${n.artist ? '<span> · ' + esc(n.artist) + '</span>' : ''}` : '<small>Live</small>'; }
 
-async function viewRadio() {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Radio</h1><p class="empty">Loading…</p></div>';
+async function viewRadio(host) { // host: { el, hash } when shown inside the Store tab
+  const v = host ? host.el : $('#view'), here = () => location.hash.startsWith(host ? host.hash : '#/radio'); v.innerHTML = '<div class="wrap"><h1>Radio</h1><p class="empty">Loading…</p></div>';
   let feat, mine;
   try { ({ featured: feat, mine } = await rdoApi('/stations')); } catch (e) { v.innerHTML = `<div class="wrap"><h1>Radio</h1><p class="err">${esc(e.message)}</p></div>`; return; }
-  if (!location.hash.startsWith('#/radio')) return;
+  if (!here()) return;
   rdoSaved = mine; const S = { q: '', tag: 'christian', items: [], more: false, busy: false, seq: 0, off: 0 };
   const saved = id => rdoSaved.some(x => x.id === id);
   const row = (s, fav) => `<div class="row rdorow${rdoPlaying() && rdoPlaying().key === 'radio:' + s.id ? ' playing' : ''}" data-id="${esc(s.id)}"><button class="rdoplay" data-play aria-label="Play ${esc(s.name)}"><span class="art">${s.favicon ? `<img alt="" loading="lazy" src="${esc(rdoIcon(s))}" onerror="this.remove()">` : ''}</span>
     <span class="grow"><b>${esc(s.name)}</b><small>${esc(rdoMeta(s))}</small></span>${icon('play')}</button>${s.featured ? '' : `<button class="ibtn" data-fav aria-label="${saved(s.id) ? 'Remove from my stations' : 'Save to my stations'}" title="${saved(s.id) ? 'Remove from my stations' : 'Save to my stations'}" style="${saved(s.id) ? 'color:var(--danger)' : ''}">${icon('heart')}</button>`}</div>`;
   const j = feat[0];
-  v.innerHTML = `<div class="wrap"><h1>Radio</h1>
+  v.innerHTML = `<div class="wrap">${host ? '' : '<h1>Radio</h1>'}
     <div class="card rdofeat" style="max-width:none"><div class="sub" style="margin:0">Featured</div><h2 style="margin:2px 0 0;font-size:22px;text-transform:none;letter-spacing:0;color:var(--text)">${esc(j.name)}</h2>
       <p class="sub" style="margin:2px 0 10px">${esc(rdoMeta(j))}</p><div id="rdonow" data-id="${esc(j.id)}" class="rdonow"><small>Live</small></div>
       <div class="bar"><button class="btn" id="rdojp">${icon('play')}Listen live</button><button class="btn ghost" id="rdojl">${icon('lyrics')}Lyrics</button><button class="btn ghost" id="rdojv">Visuals</button><a class="btn ghost" href="${esc(j.homepage)}" target="_blank" rel="noopener">${icon('ext')}Website</a><button class="btn ghost" id="rdojr">Recently played</button></div></div>

public/reader.js

@@ -27,7 +27,7 @@ const rdTitleOf = f => f.replace(/\.[^.]+$/, '').replace(/[_]+/g, ' ');
 // ======================================================= Library
 async function viewReader(args = []) {
   if (args[0] === 'open' && args[1]) return rdOpen(args[1]);
-  if (args[0] === 'store') return rdStore();
+  if (args[0] === 'store') return allowed('store') ? location.replace('#/store/books') : rdStore();
   const v = $('#view');
   v.innerHTML = '<div class="wrap"><h1>Books</h1><p class="empty">Loading…</p></div>';
   try { await rdLibrary(); } catch (e) {
@@ -151,14 +151,14 @@ async function rdMobiOpen(u8) {
 }
 
 // ======================================================= Book store: free, DRM-free books from Project Gutenberg, Standard Ebooks, the Internet Archive and any OPDS catalogue
-async function rdStore() {
-  const v = $('#view'); v.innerHTML = '<div class="wrap"><h1>Book store</h1><p class="empty">Loading…</p></div>';
+async function rdStore(host) { // host: { el, hash } when shown inside the Store tab
+  const v = host ? host.el : $('#view'), here = () => location.hash.startsWith(host ? host.hash : '#/read/store'); v.innerHTML = '<div class="wrap"><h1>Book store</h1><p class="empty">Loading…</p></div>';
   let sources, mine;
   try { [sources, mine] = await Promise.all([rdApi('/store/sources'), rdApi('/list')]); } catch (e) { v.innerHTML = `<div class="wrap"><a class="btn ghost" href="#/read">${icon('back')}Books</a><p class="err">${esc(e.message)}</p></div>`; return; }
-  if (!location.hash.startsWith('#/read/store')) return;
+  if (!here()) return;
   const key = b => (b.title + '|' + (b.author || '')).toLowerCase().replace(/\s+/g, ' ').trim(), have = new Map(mine.map(b => [key(b), b.id]));
   const S = { q: '', source: 'all', page: 1, items: [], more: false, seq: 0 };
-  v.innerHTML = `<div class="wrap" id="rdst"><div class="ptop"><a class="btn ghost" href="#/read">${icon('back')}Books</a><h1 style="margin:0">Book store</h1><span class="pspace grow"></span>${ME && ME.role === 'admin' ? `<button class="btn ghost" id="rdcat">${icon('cog')}Catalogues</button>` : ''}</div>
+  v.innerHTML = `<div class="wrap" id="rdst"><div class="ptop">${host ? '' : `<a class="btn ghost" href="#/read">${icon('back')}Books</a><h1 style="margin:0">Book store</h1>`}<span class="pspace grow"></span>${ME && ME.role === 'admin' ? `<button class="btn ghost" id="rdcat">${icon('cog')}Catalogues</button>` : ''}</div>
     <p class="sub">Free books without DRM, from public sources. Search them all at once, then add a book to your library in one tap.</p>
     <input type="search" id="rdsq" placeholder="Search titles and authors" autocomplete="off" autocapitalize="off" style="width:100%">
     <div class="seg" id="rdchips"></div><div id="rdnote"></div><div id="rdres"></div><div id="rdmore" class="bar" style="justify-content:center"></div></div>`;

public/store-view.js

@@ -0,0 +1,175 @@
+'use strict';
+// ---- Store: everything you can get, in one place. Books (free sources), free audiobooks, radio stations, and My Store: content the admin adds themselves (books,
+// music, apps to download, and extensions that add features to the hub). The first three are the same screens as before, shown inside this one.
+const stApi = (p, opts) => jfetch('/api/store/my' + p, opts);
+const stOpt = (m, o) => ({ method: m, headers: { 'content-type': 'application/json' }, body: o ? JSON.stringify(o) : undefined });
+const ST_KINDS = [['book', 'Books', 'book'], ['music', 'Music', 'music'], ['app', 'Apps', 'files'], ['extension', 'Extensions', 'cog']];
+const stKind = k => ST_KINDS.find(x => x[0] === k) || ST_KINDS[2];
+const stSize = b => fmtSize(+b || 0);
+const stCover = it => it.cover ? `/api/store/my/items/${it.id}/cover?v=${it.updated}` : '';
+const stHue = s => { let h = 0; for (const ch of String(s)) h = (h * 31 + ch.charCodeAt(0)) % 360; return h; };
+let stItems = [], stInstalled = [], stAdmin = false, stFilter = 'all';
+
+/** The sections this person may open (each needs its own tab's permission, except My Store). */
+const stSections = () => [['books', 'Books', allowed('read')], ['audiobooks', 'Audiobooks', allowed('audio')], ['radio', 'Radio', allowed('radio')], ['mine', 'My Store', true]].filter(s => s[2]);
+
+async function viewStore(args = []) {
+  const secs = stSections(), want = args[0] === 'ext' ? 'mine' : args[0], sec = (secs.find(s => s[0] === want) || secs[0])[0];
+  const v = $('#view');
+  v.innerHTML = `<div class="wrap" id="stwrap"><div class="ptop"><h1>Store</h1></div><div class="seg">${secs.map(s => `<a href="#/store/${s[0]}" class="${s[0] === sec ? 'on' : ''}">${esc(s[1])}</a>`).join('')}</div><div id="stbody"></div></div>`;
+  const el = $('#stbody'), host = { el, hash: '#/store/' + sec };
+  if (sec === 'books') return rdStore(host);
+  if (sec === 'audiobooks') return viewFreeBooks(host);
+  if (sec === 'radio') return viewRadio(host);
+  if (args[0] === 'ext' && args[1]) return stRunExt(el, args[1]);
+  return stMine(el);
+}
+
+// ---------------------------------------------------------------- My Store
+async function stLoad() { const r = await stApi('/items'); stItems = r.items; stInstalled = r.installed; stAdmin = r.admin; return r; }
+async function stMine(el) {
+  try { await stLoad(); } catch (e) { el.innerHTML = `<p class="err">${esc(e.message)}</p>`; return; }
+  const draw = () => {
+    if (!$('#stbody')) return;
+    const mine = stItems.filter(i => i.kind === 'extension' && stInstalled.includes(i.id)), shown = stItems.filter(i => stFilter === 'all' || i.kind === stFilter);
+    el.innerHTML = `<div class="bar" style="margin:0 0 8px;justify-content:flex-start"><p class="sub" style="margin:0;flex:1">Books, music, apps and extensions added just for this hub.</p>${stAdmin ? `<button class="btn" id="stadd">${icon('plus')}Add</button>` : ''}</div>
+      ${mine.length ? `<h2>My extensions</h2><div class="vgrid">${mine.map(i => stCard(i, true)).join('')}</div>` : ''}
+      <div class="seg" id="stkinds"><a href="#" data-k="all" class="${stFilter === 'all' ? 'on' : ''}">All</a>${ST_KINDS.map(k => `<a href="#" data-k="${k[0]}" class="${stFilter === k[0] ? 'on' : ''}">${k[1]}</a>`).join('')}</div>
+      ${shown.length ? `<div class="vgrid">${shown.map(i => stCard(i)).join('')}</div>` : `<p class="empty">${stItems.length ? 'Nothing of that kind yet.' : stAdmin ? 'Nothing here yet. Add your first book, album, app or extension.' : 'Nothing has been added yet.'}</p>`}`;
+    el.querySelectorAll('#stkinds a').forEach(a => a.onclick = e => { e.preventDefault(); stFilter = a.dataset.k; draw(); });
+    el.querySelectorAll('[data-it]').forEach(a => a.onclick = e => { e.preventDefault(); const it = stItems.find(x => x.id === a.dataset.it); if (a.dataset.run) location.hash = '#/store/ext/' + it.id; else stDetail(it, draw); });
+    if ($('#stadd')) $('#stadd').onclick = () => stEdit(null, draw);
+  };
+  draw();
+}
+const stCard = (it, run) => `<a class="vcard" href="#" data-it="${esc(it.id)}"${run ? ' data-run="1"' : ''}><span class="vimg" style="aspect-ratio:${it.kind === 'book' ? '2/3' : '1/1'};background:linear-gradient(135deg,hsl(${stHue(it.title)} 55% 40%),hsl(${stHue(it.title) + 40} 55% 28%));display:grid;place-items:center;color:#fff;font-size:40px">${it.cover ? `<img loading="lazy" alt="" src="${stCover(it)}" onerror="this.remove()">` : esc((it.kind === 'extension' && it.icon) || (it.title.match(/\p{L}|\p{N}/u) || ['?'])[0].toUpperCase())}</span>
+  <b>${esc(it.title)}</b><small>${esc([stKind(it.kind)[1].replace(/s$/, ''), it.creator].filter(Boolean).join(' · '))}</small></a>`;
+
+function stDetail(it, redraw) {
+  const k = it.kind, f0 = it.files[0], isMine = k === 'extension' && stInstalled.includes(it.id);
+  const url = f => `/api/store/my/items/${it.id}/files/${f.id}`;
+  const el = openSheet(it.title, [stKind(k)[1].replace(/s$/, ''), it.creator, it.version && 'v' + it.version].filter(Boolean).join(' · '), `<div style="display:flex;gap:14px;align-items:flex-start">${it.cover ? `<span class="vimg" style="width:96px;flex:none;aspect-ratio:${k === 'book' ? '2/3' : '1/1'}"><img alt="" src="${stCover(it)}"></span>` : ''}
+      <div style="min-width:0">${it.description ? `<p style="margin:0;white-space:normal">${esc(it.description).replace(/\n/g, '<br>')}</p>` : '<p class="sub" style="margin:0">No description.</p>'}</div></div>
+    ${k === 'music' || k === 'app' ? `<div class="list" style="margin-top:12px">${it.files.map((f, i) => `<div class="row"><span class="grow"><b>${esc(f.name)}</b><small>${esc(stSize(f.size))}</small></span>${k === 'music' ? `<button class="ibtn" data-play="${i}" aria-label="Play">${icon('play')}</button>` : ''}<a class="ibtn" href="${url(f)}?dl=1" download aria-label="Download">${icon('download')}</a></div>`).join('') || '<p class="empty">No files.</p>'}</div>` : ''}
+    <div class="err" id="sterr"></div><div class="bar" id="stbar" style="flex-wrap:wrap">
+      ${k === 'book' && f0 ? `${allowed('read') ? '<button class="btn" id="stlib">Add to my library</button>' : ''}<a class="btn ghost" href="${url(f0)}?dl=1" download>Download</a>` : ''}
+      ${k === 'music' && it.files.length ? `<button class="btn" id="stplay">${icon('play')}Play</button>` : ''}
+      ${k === 'app' && it.url ? `<a class="btn" href="${esc(it.url)}" target="_blank" rel="noopener noreferrer">Open link</a>` : ''}
+      ${k === 'extension' && f0 ? `<button class="btn" id="stinst">${isMine ? 'Open' : 'Install'}</button>${isMine ? '<button class="btn ghost" id="stun">Remove</button>' : ''}` : ''}
+      ${stAdmin ? '<button class="btn ghost" id="stedit">Edit</button>' : ''}</div>`);
+  const err = t => { el.querySelector('#sterr').textContent = t; };
+  const tracks = () => it.files.map(f => ({ key: `my:${it.id}:${f.id}`, title: f.name.replace(/\.[^.]+$/, '').replace(/^\d+[\s._-]+/, ''), artist: it.creator || '', album: it.title, thumb: stCover(it), src: url(f), nocache: true }));
+  const play = i => { playQueue(tracks(), i || 0); closeSheet(); };
+  if (el.querySelector('#stplay')) el.querySelector('#stplay').onclick = () => play(0);
+  el.querySelectorAll('[data-play]').forEach(b => b.onclick = () => play(+b.dataset.play));
+  if (el.querySelector('#stlib')) el.querySelector('#stlib').onclick = async e => { const b = e.currentTarget; b.disabled = true; try { const r = await stApi(`/items/${it.id}/to-library`, stOpt('POST')); closeSheet(); toast(r.duplicate ? 'Already in your library' : 'Added to your library', { label: 'Open', run: () => { location.hash = '#/read/open/' + r.id; } }); } catch (x) { err(x.message); b.disabled = false; } };
+  if (el.querySelector('#stinst')) el.querySelector('#stinst').onclick = async e => { const b = e.currentTarget; try { if (!isMine) { b.disabled = true; stInstalled = (await stApi(`/ext/${it.id}/install`, stOpt('POST'))).installed; } closeSheet(); location.hash = '#/store/ext/' + it.id; } catch (x) { err(x.message); b.disabled = false; } };
+  if (el.querySelector('#stun')) el.querySelector('#stun').onclick = () => { closeSheet(); confirmSheet('Remove this extension?', 'Its saved settings are forgotten too.', 'Remove', async () => { try { stInstalled = (await stApi(`/ext/${it.id}/uninstall`, stOpt('POST'))).installed; toast('Removed'); redraw(); } catch (x) { toast(x.message); } }); };
+  if (el.querySelector('#stedit')) el.querySelector('#stedit').onclick = () => { closeSheet(); stEdit(it, redraw); };
+}
+
+// ---- adding and changing (admin)
+function stEdit(it, redraw) {
+  const x = it || { kind: 'book', title: '', creator: '', description: '', version: '', url: '', icon: '', files: [], cover: false };
+  let created = false;
+  const el = openSheet(it ? 'Edit item' : 'Add to My Store', '', `<form id="stf">
+    ${it ? '' : `<label for="stk">What is it?</label><select id="stk">${ST_KINDS.map(k => `<option value="${k[0]}">${k[1].replace(/s$/, '')}</option>`).join('')}</select>`}
+    <label for="stt">Title</label><input type="text" id="stt" value="${esc(x.title)}" autocomplete="off" required>
+    <label for="stc" id="stcl">Author</label><input type="text" id="stc" value="${esc(x.creator)}" autocomplete="off">
+    <label for="std">Description</label><textarea id="std" rows="3">${esc(x.description)}</textarea>
+    <div id="stapp" hidden><label for="stv">Version</label><input type="text" id="stv" value="${esc(x.version)}" autocomplete="off"><label for="stu">Link (optional)</label><input type="url" id="stu" value="${esc(x.url)}" placeholder="https://…" autocapitalize="off"></div>
+    <div id="stext" hidden><label for="sti">Icon (one letter or emoji)</label><input type="text" id="sti" value="${esc(x.icon || '')}" maxlength="2" style="width:80px"></div>
+    <label>Files</label><div id="stfl" class="list"></div>
+    <div class="bar" style="justify-content:flex-start;margin:6px 0"><label class="btn ghost" style="cursor:pointer;margin:0">${icon('plus')}Upload<input type="file" id="stup" hidden multiple></label>${allowed('files') ? `<button type="button" class="btn ghost" id="stsf">${icon('files')}From Files</button>` : ''}</div>
+    <label>Cover picture</label><div class="bar" style="justify-content:flex-start;margin:4px 0"><label class="btn ghost" style="cursor:pointer;margin:0">${icon('plus')}Choose<input type="file" id="stcv" accept="image/jpeg,image/png,image/gif,image/webp" hidden></label><small id="stcvn" style="color:var(--muted)">${x.cover ? 'A cover is set' : ''}</small></div>
+    <div class="err" id="sterr"></div><div class="bar">${it ? '<button type="button" class="btn danger" id="stdel">Delete</button>' : ''}<button type="button" class="btn ghost" id="stx" style="flex:1;justify-content:center">Cancel</button><button class="btn" id="stok" style="flex:1;justify-content:center">${it ? 'Save' : 'Add'}</button></div></form>`);
+  const $e = s => el.querySelector(s), err = t => { $e('#sterr').textContent = t; };
+  let kind = x.kind; const files = [], existing = [...x.files]; let cover = null;
+  const kindUi = () => { kind = it ? x.kind : $e('#stk').value; $e('#stcl').textContent = kind === 'music' ? 'Artist' : kind === 'book' ? 'Author' : 'Made by'; $e('#stapp').hidden = kind !== 'app' && kind !== 'extension'; $e('#stext').hidden = kind !== 'extension';
+    $e('#stup').accept = kind === 'book' ? '.epub,.pdf,.mobi,.azw3,.azw,.docx' : kind === 'music' ? 'audio/*,.mp3,.m4a,.flac,.ogg,.opus,.wav' : kind === 'extension' ? '.html' : ''; $e('#stup').multiple = kind === 'music' || kind === 'app'; };
+  const drawFiles = () => { $e('#stfl').innerHTML = [...existing.map((f, i) => [f.name, stSize(f.size), 'e', i]), ...files.map((f, i) => [f.name || f.path.split('/').pop(), f.size != null ? stSize(f.size) : 'from Files', 'n', i])].map(([n, s, t, i]) => `<div class="row"><span class="grow"><b>${esc(n)}</b><small>${esc(s)}</small></span><button type="button" class="ibtn" data-t="${t}" data-i="${i}" aria-label="Remove">${icon('trash')}</button></div>`).join('') || '<p class="sub" style="margin:8px 12px">No files yet.</p>';
+    el.querySelectorAll('#stfl [data-t]').forEach(b => b.onclick = () => { (b.dataset.t === 'e' ? existing : files).splice(+b.dataset.i, 1); drawFiles(); }); };
+  if (!it) $e('#stk').onchange = kindUi; kindUi(); drawFiles();
+  $e('#stup').onchange = e => { const single = kind !== 'music' && kind !== 'app'; if (single) { files.length = 0; existing.length = 0; } for (const f of e.target.files) files.push(f); e.target.value = ''; drawFiles(); };
+  if ($e('#stsf')) $e('#stsf').onclick = async () => { const p = await stPickFile(); if (!p) return; if (kind !== 'music' && kind !== 'app') { files.length = 0; existing.length = 0; } files.push({ path: p.path, repo: p.repo, name: p.path.split('/').pop() }); drawFiles(); };
+  $e('#stcv').onchange = e => { cover = e.target.files[0] || null; $e('#stcvn').textContent = cover ? cover.name : ''; };
+  $e('#stx').onclick = closeSheet;
+  if ($e('#stdel')) $e('#stdel').onclick = () => { closeSheet(); confirmSheet('Delete this item?', it.title, 'Delete', async () => { try { await stApi('/items/' + it.id, { method: 'DELETE' }); toast('Deleted'); await stLoad(); redraw(); } catch (e) { toast(e.message); } }); };
+  $e('#stf').onsubmit = async e => {
+    e.preventDefault(); const ok = $e('#stok'); ok.disabled = true; err('');
+    try {
+      if (!files.length && !existing.length && kind !== 'app') throw new Error('Add the file first');
+      let saved = await stApi('/items', stOpt('POST', { id: it && it.id, kind, title: $e('#stt').value, creator: $e('#stc').value, description: $e('#std').value, version: $e('#stv').value, url: $e('#stu').value, icon: $e('#sti') ? $e('#sti').value : '' }));
+      if (!it) created = true;
+      for (const f of x.files) if (!existing.some(y => y.id === f.id)) saved = await stApi(`/items/${saved.id}/files/${f.id}`, { method: 'DELETE' });
+      let n = 0;
+      for (const f of files) {
+        ok.textContent = `Adding ${++n} of ${files.length}…`;
+        saved = f instanceof File ? await stApi(`/items/${saved.id}/files?name=${encodeURIComponent(f.name)}`, { method: 'POST', body: f, headers: { 'content-type': 'application/octet-stream' } }) : await stApi(`/items/${saved.id}/files`, stOpt('POST', { repo: f.repo, path: f.path }));
+      }
+      if (cover) saved = await stApi(`/items/${saved.id}/cover`, { method: 'POST', body: cover, headers: { 'content-type': cover.type } });
+      closeSheet(); toast(it ? 'Saved' : 'Added'); await stLoad(); redraw();
+    } catch (x2) { err(x2.message + (created ? ' The item was created without it: open it to finish.' : '')); ok.disabled = false; ok.textContent = it ? 'Save' : 'Add'; }
+  };
+}
+
+/** Pick one file from your Seafile libraries. Resolves { repo, path } or null. */
+function stPickFile() {
+  return new Promise(resolve => {
+    if (!sf.token()) { toast('Open Files and sign in first'); return resolve(null); }
+    let repo = null, dir = '/', done = false;
+    const el = openSheet('Choose a file from Files', '', '<div id="stpk"></div>'); const finish = v => { done = true; closeSheet(); resolve(v); };
+    el.querySelector('.scrim').addEventListener('click', () => { if (!done) resolve(null); });
+    const draw = async () => {
+      const box = el.querySelector('#stpk'); box.innerHTML = '<p class="empty">Loading…</p>';
+      try {
+        if (!repo) { const repos = (await sf.req('/api2/repos/')).filter(r => !r.encrypted).sort((a, b) => a.name.localeCompare(b.name));
+          box.innerHTML = `<div class="list" style="max-height:50dvh;overflow:auto">${repos.map(r => `<button class="row" data-r="${esc(r.id)}">${icon('files')}<span class="grow"><b>${esc(r.name)}</b></span></button>`).join('')}</div><div class="bar"><button class="btn ghost" id="pcx" style="flex:1;justify-content:center">Cancel</button></div>`;
+          box.querySelectorAll('[data-r]').forEach(b => b.onclick = () => { repo = b.dataset.r; dir = '/'; draw(); });
+        } else {
+          const items = (await sf.req(`/api2/repos/${encodeURIComponent(repo)}/dir/?p=${encodeURIComponent(dir)}`)).sort((a, b) => (a.type === b.type ? 0 : a.type === 'dir' ? -1 : 1) || a.name.localeCompare(b.name));
+          box.innerHTML = `<p class="sub" style="word-break:break-all">${esc(dir)}</p><div class="list" style="max-height:50dvh;overflow:auto"><button class="row" data-up="1">${icon('back')}<span class="grow"><b>${dir === '/' ? 'All libraries' : 'Up'}</b></span></button>
+            ${items.map(x => `<button class="row" data-${x.type === 'dir' ? 'd' : 'f'}="${esc(x.name)}">${icon(x.type === 'dir' ? 'files' : 'doc')}<span class="grow"><b>${esc(x.name)}</b>${x.type === 'dir' ? '' : `<small>${esc(stSize(x.size))}</small>`}</span></button>`).join('')}</div><div class="bar"><button class="btn ghost" id="pcx" style="flex:1;justify-content:center">Cancel</button></div>`;
+          box.querySelectorAll('[data-d]').forEach(b => b.onclick = () => { dir = (dir === '/' ? '' : dir) + '/' + b.dataset.d; draw(); });
+          box.querySelectorAll('[data-f]').forEach(b => b.onclick = () => finish({ repo, path: (dir === '/' ? '' : dir) + '/' + b.dataset.f }));
+          box.querySelector('[data-up]').onclick = () => { if (dir === '/') repo = null; else dir = dir.slice(0, dir.lastIndexOf('/')) || '/'; draw(); };
+        }
+        box.querySelector('#pcx').onclick = () => finish(null);
+      } catch (e) { box.innerHTML = `<p class="err">${esc(e.message)}</p>`; }
+    };
+    draw();
+  });
+}
+
+// ---------------------------------------------------------------- running an extension
+// The extension is one HTML file in a sandboxed frame (no access to your sign-in or the hub's data). It talks to the hub only through the messages below.
+async function stRunExt(el, id) {
+  try { await stLoad(); } catch (e) { el.innerHTML = `<p class="err">${esc(e.message)}</p>`; return; }
+  const it = stItems.find(x => x.id === id && x.kind === 'extension');
+  if (!it) { el.innerHTML = '<p class="empty">That extension is not in the store any more.</p>'; return; }
+  if (!stInstalled.includes(id)) { el.innerHTML = `<p class="empty">Install “${esc(it.title)}” from My Store first.</p>`; return; }
+  el.innerHTML = `<div class="bar" style="margin:0 0 8px;justify-content:flex-start"><a class="btn ghost" href="#/store/mine">${icon('back')}My Store</a><b style="flex:1">${esc(it.title)}</b></div>
+    <iframe id="stframe" title="${esc(it.title)}" sandbox="allow-scripts allow-forms allow-popups allow-modals" referrerpolicy="no-referrer" style="width:100%;height:calc(100dvh - 190px);min-height:360px;border:1px solid var(--line);border-radius:12px;background:#fff"></iframe>`;
+  const frame = el.querySelector('#stframe'); let data = null, timer;
+  // (the page is fetched by the hub and shown from here, so the frame needs no sign-in of its own; its sandbox keeps it from touching anything of the hub's)
+  fetch(`/api/store/my/ext/${id}/page`).then(r => r.ok ? r.text() : Promise.reject(new Error('Could not load it'))).then(h => { frame.srcdoc = h; }).catch(e => { el.querySelector('#stframe').outerHTML = `<p class="err">${esc(e.message)}</p>`; });
+  const load = async () => data || (data = await stApi(`/ext/${id}/data`).catch(() => ({})));
+  const save = () => { clearTimeout(timer); timer = setTimeout(() => stApi(`/ext/${id}/data`, stOpt('POST', data)).catch(e => toast(e.message)), 400); };
+  const onMsg = async e => {
+    if (!document.body.contains(frame)) return removeEventListener('message', onMsg);
+    if (e.source !== frame.contentWindow || !e.data || !e.data.hub) return;
+    const { id: mid, method, args = [] } = e.data; let result, error;
+    try {
+      if (method === 'storage.get') result = (await load())[String(args[0])] ?? null;
+      else if (method === 'storage.all') result = { ...(await load()) };
+      else if (method === 'storage.set') { const d = await load(); d[String(args[0]).slice(0, 100)] = args[1]; if (JSON.stringify(d).length > 256 * 1024) { delete d[String(args[0]).slice(0, 100)]; throw new Error('Out of space (256 KB)'); } save(); result = true; }
+      else if (method === 'storage.remove') { delete (await load())[String(args[0])]; save(); result = true; }
+      else if (method === 'toast') { toast(String(args[0]).slice(0, 200)); result = true; }
+      else if (method === 'user') result = { name: ME ? ME.name : '' };
+      else if (method === 'open') { if (/^https?:\/\//i.test(String(args[0]))) window.open(String(args[0]), '_blank', 'noopener,noreferrer'); result = true; }
+      else throw new Error('Unknown request');
+    } catch (x) { error = x.message; }
+    frame.contentWindow.postMessage({ hub: 1, id: mid, result, error }, '*');
+  };
+  addEventListener('message', onMsg);
+}

public/style.css

@@ -961,3 +961,7 @@ body.vizopen { overflow: hidden; }
 .ctsug { position: absolute; z-index: 30; left: 0; right: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,.15); max-height: 220px; overflow: auto; }
 .ctsug button { display: block; width: 100%; text-align: left; padding: 8px 12px; border: 0; background: none; color: inherit; font: inherit; cursor: pointer; } .ctsug button:hover, .ctsug button.on { background: rgba(127,127,127,.15); }
 .pdhit { margin-bottom: 8px; } mark { background: rgba(255, 200, 0, .45); color: inherit; border-radius: 3px; }
+
+/* Store */
+#stbody .wrap { padding: 0; max-width: none; }
+#stbody .vimg img { width: 100%; height: 100%; object-fit: cover; }

public/sw.js

@@ -1,5 +1,5 @@
 // App-shell cache only; Seafile/API traffic always goes to the network.
-const CACHE = 'hub-v51';
+const CACHE = 'hub-v52';
 const SHARE = 'hub-share'; // files shared into the app from other apps, held until the person picks a folder
 const SHELL = ['/icon.svg', '/manifest.webmanifest', '/icons/icon-192.png', '/icons/apple-touch-icon.png'];