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Browse the Directory by category, then subcategory, as Apple does (#118)

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The Directory had one row of chips holding whatever each feed's category was, a category
(Technology) or a subcategory (Tech News, Video Games) side by side: a podcast's own
<itunes:category> is stored as its subcategory, and Jev's answers (#117) are often
subcategories too, so after the first forced scan the row held 22 chips. /api/directory now
gives each feed's Apple category and subcategory, worked out from Apple's list, and the
page shows the categories, then a picked one's subcategories on a line of their own. A
category that is not Apple's, one an admin typed, stands as a category of its own.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Ray Slakinski
2026-10-04 22:33:26 +00:00
parent 3e384f34f9
commit 02a46bb500
6 changed files with 58 additions and 11 deletions
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21
web/src/dialogs.ts
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@@ -70,11 +70,12 @@ function listedFeed(p,cls){
// Directory's filters. Kept out here because a finished scan redraws the pane, which would
// otherwise clear them.
let dirKind='All', dirCat=null;
let dirKind='All', dirCat=null, dirSub=null;
const KINDS={All:()=>true,Podcasts:p=>p.podcast,Blogs:p=>!p.podcast};
/// Directory: every listed feed as its cover art, under two filters that combine: what a feed is
/// (Podcasts, anything with audio or video, or Blogs, the rest) and what it is about (its iTunes
/// category, as chips). Both filter in place, without asking the server again.
/// category, as chips, then once one is picked its subcategories, as Apple's directory does).
/// They filter in place, without asking the server again.
async function renderDirectory(url,box){
let rows=[];
try{ rows=await api(url)||[]; }catch{}
@@ -89,18 +90,24 @@ async function renderDirectory(url,box){
// No empty chips: only the categories among the feeds the kind lets through.
const cats=[...new Set(ofKind.map(p=>p.category).filter(Boolean))].sort();
if(!cats.includes(dirCat)) dirCat=null;
const ofCat=ofKind.filter(p=>!dirCat||p.category===dirCat);
const subs=dirCat?[...new Set(ofCat.map(p=>p.subcategory).filter(Boolean))].sort():[];
if(!subs.includes(dirSub)) dirSub=null;
bar.innerHTML=
(both?`<div class="tabs" role="group" aria-label="Kind">${Object.keys(KINDS).map(k=>btn('kind',k,k===dirKind)).join('')}</div>`:'')+
(cats.length?`<div class="chips" role="group" aria-label="Category">${cats.map(c=>btn('cat',c,c===dirCat)).join('')}</div>`:'');
(cats.length?`<div class="chips" role="group" aria-label="Category">${cats.map(c=>btn('cat',c,c===dirCat)).join('')}</div>`:'')+
(subs.length?`<div class="chips subs" role="group" aria-label="Subcategory">${subs.map(c=>btn('sub',c,c===dirSub)).join('')}</div>`:'');
// A picked chip lifts on a second press. Everything is redrawn, so the keyboard goes back to
// the button just pressed.
for(const b of $$('button',bar)) b.onclick=()=>{
const k=b.dataset.kind!=null?'kind':'cat', v=b.dataset[k];
if(k==='kind') dirKind=v; else dirCat=dirCat===v?null:v;
const k=b.dataset.kind!=null?'kind':b.dataset.cat!=null?'cat':'sub', v=b.dataset[k];
if(k==='kind') dirKind=v;
else if(k==='cat'){ dirCat=dirCat===v?null:v; dirSub=null; }
else dirSub=dirSub===v?null:v;
draw(); $(`[data-${k}="${CSS.escape(v)}"]`,bar)?.focus();
};
box.innerHTML='';
for(const p of ofKind.filter(p=>!dirCat||p.category===dirCat)) box.appendChild(listedFeed(p,'tile'));
for(const p of ofCat.filter(p=>!dirSub||p.subcategory===dirSub)) box.appendChild(listedFeed(p,'tile'));
};
draw();
return rows.length;
@@ -307,7 +314,7 @@ function settingsModal(f, newUrl?: string){
// Offer the categories the Directory already shows, so a blog about games joins Games rather
// than starting a second chip beside it.
if($('#scats')) api('/api/directory').then(rows=>{ $('#scats').innerHTML=[...new Set((rows||[])
.map(p=>p.category).filter(Boolean))].sort().map(c=>`<option value="${esc(c)}">`).join(''); }).catch(()=>{});
.flatMap(p=>[p.category,p.subcategory]).filter(Boolean))].sort().map(c=>`<option value="${esc(c)}">`).join(''); }).catch(()=>{});
$('#ssave').onclick=async()=>{
const max=$('#smax').value;
try{