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Timers: built-in LTC listener, configured in the admin page

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The LTC listener now lives inside the module: it spawns the native
ltc-capture helper (moved into the module folder, compiled on first use,
exact-name device matching) for the admin-selected input device, extracts
the configured channel, and decodes SMPTE LTC in-process (ltc.js — the
engine, shared with tools/ltc-reader.js, which remains the remote-machine
option posting to /ltc).

Admin config: an "LTC listener" switch, an audio-device select populated
live from the new GET /ltc/devices route, and a 1-based channel number.
The switch off means LTC is gone entirely: no LTC entry in the Add-tile
picker, no LTC row in the Timers menu or All-timers grid, no stage/API
probes, and POST /ltc answers 409. Source precedence with it on:
listener-with-data, fresh remote reader, listener's own no-signal verdict,
then the legacy API/stage chain.

Shell (admin page): `select` fields learn `optionsRoute` — options fetched
from a module route at render, saved value kept selectable when the route
or device is gone. Documented in MODULE-GUIDE; backward compatible.
Coordinate with the shell lane before its next admin.js change.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Waters Church
2026-09-08 17:21:48 -04:00
co-authored by Claude Fable 5
parent c4db412014
commit b95aa7dc34
11 changed files with 770 additions and 404 deletions
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modules/propresenter-timers/client.js
+11 -8
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@@ -61,7 +61,9 @@ export default function create({ root, moduleApi }) {
function menuRows() {
const rows = (state?.timers || []).map((t) => ({ key: t.uuid, name: t.name }));
rows.push({ key: LTC_KEY, name: 'LTC timecode' });
// No LTC row while the listener is off in Admin — the item shouldn't
// even be offerable.
if (state?.ltcEnabled) rows.push({ key: LTC_KEY, name: 'LTC timecode' });
return rows;
}
@@ -159,7 +161,7 @@ export default function create({ root, moduleApi }) {
for (const t of state?.timers || []) {
if (!hiddenItems.has(t.uuid)) items.push({ key: t.uuid, timer: t });
}
if (!hiddenItems.has(LTC_KEY)) items.push({ key: LTC_KEY, ltc: ltcState });
if (state?.ltcEnabled && !hiddenItems.has(LTC_KEY)) items.push({ key: LTC_KEY, ltc: ltcState });
return items;
}
@@ -235,9 +237,10 @@ export default function create({ root, moduleApi }) {
card.timeEl.textContent = '—';
card.stateEl.textContent = 'No signal';
}
// The reader posts independently of ProPresenter, so its card must not
// gray out with the rest when only ProPresenter is unreachable.
const live = ltc.source === 'reader' ? ' src-reader' : '';
// The built-in listener and the remote reader are independent of
// ProPresenter, so their card must not gray out with the rest when
// only ProPresenter is unreachable.
const live = ltc.source === 'reader' || ltc.source === 'listener' ? ' src-reader' : '';
card.el.className = `tm-card tm-card-ltc is-ltc-${mode}${live}`;
}
@@ -261,9 +264,9 @@ export default function create({ root, moduleApi }) {
}
if (!state.enabled) {
bannerEl.hidden = true;
// The LTC reader feeds us with or without ProPresenter — an LTC-only
// setup is working, not broken.
if (state.ltc?.supported) moduleApi.setStatus('ok', 'LTC via reader — no ProPresenter host configured');
// The LTC listener/reader feed us with or without ProPresenter — an
// LTC-only setup is working, not broken.
if (state.ltc?.supported) moduleApi.setStatus('ok', 'LTC only — no ProPresenter host configured');
else moduleApi.setStatus('error', 'No ProPresenter host configured — set one in Admin');
return;
}