screentinker/tizen/js/app.js
ScreenTinker dcd3a05a7e feat(tizen): harden FIX B with an application-level liveness watchdog
Replace the resume-only hide-duration heuristic as the AUTHORITATIVE half-open detector with a
real server-silence watchdog, so the .wgt self-heals a dead-but-connected socket from ANY cause
(network drop, NAT idle timeout, transport death while foregrounded), not just resume.

- Central receive-path liveness: markAlive() refreshes lastServerMsgAt on EVERY inbound server
  message — app events via socket.onAny, and the server's ~15s engine ping via socket.io 'ping'
  (both client-only signals the server already sends; no server change; heartbeats get no ack).
- Watchdog (10s cadence): if socket.connected && authenticated && silent > 35s (2+ missed pings,
  under engine.io's own ~45s close), treat as half-open and reconnect via the teardown-first
  connect() -> exactly one socket, #118 re-registers once.
- #148 discipline: fires ONLY while socket.connected===true (the state socket.io can't see), so
  it never races socket.io's own down-socket auto-reconnect; connect() resets liveness so the
  watchdog and the resume fast-path can't double-fire. Resume path kept as the fast suspend path.
- Timers cleared on exit.

Client-only; keep-awake+lifecycle remain the leading flap candidate, NOT a confirmed cause.
2026-07-07 14:57:50 -05:00

609 lines
29 KiB
JavaScript

/* ScreenTinker — Tizen TV web player.
* Speaks the same /device socket.io protocol as the Android player:
* emit device:register {pairing_code | device_id+device_token, device_info, fingerprint}
* recv device:registered {device_id, device_token, status}
* recv device:paired {name} -> go to playback
* recv device:unpaired {reason} -> clear creds, re-provision
* recv device:auth-error {error}
* recv device:playlist-update {assignments, layout, orientation, suspended?, message?, detail?}
* emit device:heartbeat {device_id, telemetry} every 15s
*/
(function () {
'use strict';
// #119: one source of truth for the player version. Resolve at runtime from the
// packaged config.xml via the Tizen application API; fall back to a constant that
// build-wgt.sh stamps from config.xml's version="" so the dashboard always shows the
// version that is actually installed (never the old hardcoded '1.0.0').
var APP_VERSION_FALLBACK = '1.9.2'; // st:app-version — stamped by build-wgt.sh
var APP_VERSION = (function () {
try {
var v = tizen.application.getCurrentApplication().appInfo.version;
if (v) return v;
} catch (e) {}
return APP_VERSION_FALLBACK;
})();
var HEARTBEAT_MS = 15000;
var DEFAULT_DURATION = 10;
var MIN_DURATION = 3;
var LS = {
url: 'st_server_url',
id: 'st_device_id',
token: 'st_device_token',
fp: 'st_fingerprint',
code: 'st_pairing_code'
};
// ---- persistent state ----
function get(k) { try { return localStorage.getItem(k); } catch (e) { return null; } }
function set(k, v) { try { localStorage.setItem(k, v); } catch (e) {} }
function del(k) { try { localStorage.removeItem(k); } catch (e) {} }
function uuid() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
var r = (Math.random() * 16) | 0;
return (c === 'x' ? r : (r & 0x3) | 0x8).toString(16);
});
}
function fingerprint() {
var fp = get(LS.fp);
if (!fp) { fp = uuid().replace(/-/g, ''); set(LS.fp, fp); }
return fp;
}
function pairingCode() {
var c = get(LS.code);
if (!c) { c = String(Math.floor(100000 + Math.random() * 900000)); set(LS.code, c); }
return c;
}
// ---- DOM ----
var elSetup = document.getElementById('setup');
var elPairing = document.getElementById('pairing');
var elStage = document.getElementById('stage');
var elPip = document.getElementById('pip'); // #109: PiP overlay layer (above #stage)
var elUrl = document.getElementById('serverUrl');
var elConnect = document.getElementById('connectBtn');
var elSetupStatus = document.getElementById('setupStatus');
var elPairCode = document.getElementById('pairCode');
var elPairStatus = document.getElementById('pairStatus');
var elReset = document.getElementById('resetBtn');
var elToast = document.getElementById('toast');
function show(el) { [elSetup, elPairing, elStage].forEach(function (e) { e.classList.add('hidden'); }); el.classList.remove('hidden'); }
var toastTimer = null;
function toast(msg, sticky) {
elToast.textContent = msg; elToast.classList.remove('hidden');
if (toastTimer) clearTimeout(toastTimer);
if (!sticky) toastTimer = setTimeout(function () { elToast.classList.add('hidden'); }, 4000);
}
function clearToast() { if (toastTimer) clearTimeout(toastTimer); elToast.classList.add('hidden'); }
// Keep the screen awake (best effort across Tizen APIs)
function keepAwake() {
try { if (window.tizen && tizen.power) tizen.power.request('SCREEN', 'SCREEN_NORMAL'); } catch (e) {}
try { if (window.webapis && webapis.appcommon) webapis.appcommon.setScreenSaver(webapis.appcommon.AppCommonScreenSaverState.SCREEN_SAVER_OFF); } catch (e) {}
}
// FIX A — RE-ASSERT keep-awake on an interval. tizen.power.request / the screensaver-off
// setting can be released when the TV backgrounds/suspends the app, and the player had no
// way to re-suppress it (keepAwake was only called at boot/connect/command). ~30s is well
// under any TV screensaver timeout and the calls are cheap best-effort no-ops. Cleared by
// stopKeepAwake() on app teardown.
var keepAwakeTimer = null;
function startKeepAwake() {
stopKeepAwake();
keepAwake();
keepAwakeTimer = setInterval(keepAwake, 30000);
}
function stopKeepAwake() { if (keepAwakeTimer) { clearInterval(keepAwakeTimer); keepAwakeTimer = null; } }
// FIX B — VISIBILITY / RESUME handling. On a TV, a background/suspend can (a) release
// keep-awake and (b) silently drop the socket, leaving it HALF-OPEN — socket.connected stays
// true while the transport is dead, which socket.io CANNOT detect, so it won't auto-reconnect.
//
// Double-connect discipline (the one way this could reintroduce #148's duplicate socket):
// - DEFER to socket.io when the socket is already disconnected (socket.io owns that
// reconnect, and #118 re-registers on 'connect').
// - OWN a clean teardown-before-reopen (via connect(), which disconnects the old socket
// FIRST — cancelling any socket.io reconnect — then opens exactly ONE new socket) ONLY
// for the half-open case socket.io can't see.
// These are mutually-exclusive socket states (connected vs not), so a manual reconnect
// never races socket.io's auto-reconnect. We do NOT manually re-register (connect's 'connect'
// handler does, once). Half-open is inferred from how long the app was hidden — socket.connected
// alone is unreliable post-suspend and there is no server ack channel to actively probe
// without a server change (out of scope for this client-only build).
var hiddenAtMs = 0;
var SUSPEND_HIDE_MS = 3000; // hidden >= this ≈ an OS suspend that can half-open the socket
// Pure decision, factored out so the double-connect logic is unit-testable:
// 'reconnect' = half-open -> own teardown+reopen ; 'defer' = already down -> socket.io owns it ; 'noop'
function resumeDecision(hasSocket, socketConnected, hiddenMs) {
if (!hasSocket) return 'noop';
if (!socketConnected) return 'defer';
return (hiddenMs >= SUSPEND_HIDE_MS) ? 'reconnect' : 'noop';
}
function onVisibility() {
if (document.visibilityState === 'hidden' || document.hidden) { hiddenAtMs = Date.now(); return; }
keepAwake(); // re-assert immediately on resume
var hiddenMs = hiddenAtMs ? (Date.now() - hiddenAtMs) : 0;
hiddenAtMs = 0;
var action = resumeDecision(!!socket, !!(socket && socket.connected), hiddenMs);
if (action === 'reconnect') connect(); // teardown-before-reopen -> exactly one socket; #118 registers once
// 'defer' -> socket.io auto-reconnects (re-registers on 'connect'); 'noop' -> healthy, do nothing
}
if (typeof window !== 'undefined') window.__stResumeDecision = resumeDecision; // test hook (inert in prod)
// FIX B (hardened) — application-level LIVENESS WATCHDOG. The resume path above only fires on
// visibilitychange, so a socket that goes half-open with NO visibility event (network drop, NAT
// idle timeout, transport death while foregrounded) would never be caught: socket.connected stays
// true on a dead socket and socket.io won't reconnect. The watchdog watches for server SILENCE.
// The server sends an engine ping every ~15s (config.pingInterval) AND app events, so a healthy
// socket refreshes lastServerMsgAt at least every ~15s (markAlive is wired into a central receive
// path in connect(): socket.onAny + socket.io 'ping'). If the socket goes quiet past the liveness
// window while we still believe we're connected + authenticated, it is half-open -> clean
// teardown-before-reopen via connect() (exactly one socket; #118 re-registers once).
//
// Double-connect discipline: the watchdog fires ONLY while socket.connected===true (the half-open
// state socket.io cannot see) — socket.io's own auto-reconnect only runs when socket.connected is
// false, so the two never overlap. connect() is teardown-first, and it resets lastServerMsgAt, so
// the watchdog and the resume fast-path can't double-fire a second reconnect. Client-only: uses
// signals the server already sends; no server change.
var lastServerMsgAt = 0;
var LIVENESS_TIMEOUT_MS = 35000; // ~2+ missed 15s server pings; below engine.io's own ~45s close
var watchdogTimer = null;
function markAlive() { lastServerMsgAt = Date.now(); } // central receive-path hook (see connect())
// Pure, unit-testable: reconnect only for a connected+authenticated socket gone silent past the window.
function watchdogShouldReconnect(hasSocket, connected, authed, silentMs) {
return !!(hasSocket && connected && authed && silentMs > LIVENESS_TIMEOUT_MS);
}
function startWatchdog() {
stopWatchdog();
watchdogTimer = setInterval(function () {
var silentMs = lastServerMsgAt ? (Date.now() - lastServerMsgAt) : 0;
if (watchdogShouldReconnect(!!socket, !!(socket && socket.connected), authenticated, silentMs)) {
connect(); // half-open backstop: teardown-first -> one socket, #118 re-registers once
}
}, 10000);
}
function stopWatchdog() { if (watchdogTimer) { clearInterval(watchdogTimer); watchdogTimer = null; } }
if (typeof window !== 'undefined') window.__stWatchdogShouldReconnect = watchdogShouldReconnect; // test hook (inert in prod)
// ---- networking ----
var socket = null;
var deviceId = get(LS.id);
var deviceToken = get(LS.token);
var serverUrl = get(LS.url);
var heartbeatTimer = null;
var beatCount = 0;
var authenticated = false; // #118: true only between device:registered and disconnect/auth-error
var streamTimer = null; // #120: dashboard preview streaming interval
function deviceInfo() {
return {
android_version: 'Tizen ' + (tizenVersion() || ''),
app_version: APP_VERSION,
screen_width: window.screen ? screen.width : window.innerWidth,
screen_height: window.screen ? screen.height : window.innerHeight
};
}
function tizenVersion() {
try { return tizen.systeminfo.getCapability('http://tizen.org/feature/platform.version'); } catch (e) { return ''; }
}
function telemetry() {
var t = { uptime_seconds: Math.floor(performance.now() / 1000) };
// #74/#75: OS timezone + UTC clock (effective-tz resolution + skew indicator)
try { t.timezone = Intl.DateTimeFormat().resolvedOptions().timeZone || null; } catch (e) { t.timezone = null; }
t.device_utc = Date.now();
try {
tizen.systeminfo.getPropertyValue('BATTERY', function (b) {
t.battery_level = Math.round((b.level || 0) * 100);
t.battery_charging = !!b.isCharging;
});
} catch (e) {}
return t;
}
function connect() {
if (!serverUrl) { show(elSetup); return; }
keepAwake();
if (socket) { try { socket.disconnect(); } catch (e) {} socket = null; }
var base = serverUrl.replace(/\/+$/, '');
socket = io(base + '/device', {
transports: ['websocket', 'polling'],
reconnection: true,
reconnectionDelay: 2000,
reconnectionDelayMax: 10000,
timeout: 10000
});
// FIX B (hardened): central receive-path liveness. A fresh socket is assumed alive; then EVERY
// inbound server message refreshes lastServerMsgAt — app events via onAny, and the engine ping
// (~15s) via the manager 'ping'. This resets liveness so the watchdog / resume fast-path can't
// double-fire, and feeds the watchdog's server-silence detection. (io() returns a fresh socket
// per connect — verified — so these listeners don't accumulate.)
lastServerMsgAt = Date.now();
socket.onAny(markAlive);
socket.io.on('ping', markAlive);
socket.on('connect', function () {
// #118: a brand-new socket is not authenticated until device:registered. Reset the
// flag and kill any heartbeat carried over from the previous socket, so a beat can't
// fire on this fresh, unregistered connection (TV sleep/wake reconnects often).
authenticated = false;
stopHeartbeat();
clearToast();
register();
});
socket.on('connect_error', function (err) {
if (!deviceId) {
// Not provisioned yet — fall back to the server prompt so a bad/unreachable
// URL can be corrected instead of leaving a blank screen.
elUrl.value = serverUrl || '';
elSetupStatus.textContent = 'Could not reach server: ' + (err && err.message ? err.message : 'error');
elSetupStatus.className = 'status error';
show(elSetup); elUrl.focus();
} else {
toast('Reconnecting…', true);
}
});
socket.on('disconnect', function () {
authenticated = false; // #118
stopHeartbeat(); // #118: no beats on a dead socket
toast('Reconnecting…', true);
});
socket.on('device:registered', function (data) {
deviceId = data.device_id; deviceToken = data.device_token;
set(LS.id, deviceId); set(LS.token, deviceToken);
authenticated = true; // #118: this socket may now send post-register events
clearToast(); // #118: drop any stale "Not authenticated…" banner
startHeartbeat();
reportCapabilities(); // #125: surface the fleet-control backend to the dashboard
if (data.status === 'provisioning') showPairing();
});
socket.on('device:paired', function () {
del(LS.code); clearToast(); show(elStage);
});
socket.on('device:unpaired', function () {
del(LS.id); del(LS.token); del(LS.code);
deviceId = null; deviceToken = null;
// FIX F — back off 3s before re-registering, symmetric with the auth-error path below,
// so a repeatedly-unpaired device (e.g. MDM re-pair churn) can't tight-loop
// register -> unpaired -> register.
setTimeout(register, 3000);
});
socket.on('device:auth-error', function (data) {
// #118: NEVER sticky. A transient pre-register rejection must self-clear, not paint
// a permanent strip over still-playing content. Stop the heartbeat so a rejected beat
// can't sustain a reject -> auth-error loop.
authenticated = false;
stopHeartbeat();
toast((data && data.error) ? data.error : 'Auth error', false);
// Bad/stale token or fingerprint-reclaim block: drop creds and re-pair.
del(LS.id); del(LS.token);
deviceId = null; deviceToken = null;
setTimeout(register, 3000);
});
socket.on('device:playlist-update', onPlaylist);
// ---- remote control from the dashboard (#120 / #121 / #125) ----
// Mirror the web/Android player. The server emits device:command with the set in
// server/routes/device-groups.js (ALLOWED_COMMANDS) plus 'refresh', and the
// screenshot/remote events below. (The old device:reload listener was dead — the
// server never emits it — so 'refresh' replaces it.)
//
// #125: reboot / screen power / shutdown now go through STDeviceControl, which
// drives the real Samsung b2bcontrol/systemcontrol surface on a partner-signed
// panel. Where that surface is absent (web / URL-Launcher / consumer TV), it
// resolves { supported:false } and we fall back to the local black overlay for
// screen_off so the command still does something visible.
socket.on('device:command', function (data) {
var type = (data && data.type) ? String(data.type).toLowerCase() : '';
var payload = (data && data.payload) ? data.payload : null;
if (!type) return;
// "Wake" intents always clear any black overlay and re-assert screen-awake,
// independent of (and in addition to) the panel API.
if (type === 'screen_on' || type === 'launch') { clearScreenOff(); keepAwake(); }
if (!window.STDeviceControl) { reportCmd('error', type, 'device-control unavailable'); return; }
STDeviceControl.run(type, payload).then(function (res) {
var note = res.note;
// No real panel-power surface: keep the pre-#125 behaviour — a black overlay
// (content keeps running behind it) — so screen_off isn't a silent no-op.
if (type === 'screen_off' && res.supported === false) {
showScreenOff();
res = { ok: true, supported: true, reload: false };
note = 'no panel API — black overlay fallback';
}
var level = res.ok ? 'info' : (res.supported === false ? 'warn' : 'error');
reportCmd(level, type, note || (res.ok ? 'ok' : 'failed'));
// Delay the reload so the log/result emit reaches the server first.
if (res.reload) setTimeout(function () { location.reload(); }, 1200);
});
});
// #120: dashboard preview — single shot and start/stop streaming.
socket.on('device:screenshot-request', function () { captureAndSend(); });
socket.on('device:remote-start', function () { startStreaming(); });
socket.on('device:remote-stop', function () { stopStreaming(); });
// ---- video wall sync (mirrors the web player) ----
// Leader broadcasts position; followers align index + drift-correct their video.
socket.on('wall:sync', function (d) { wallController.onSync(d); });
socket.on('wall:sync-request', function (d) { wallController.onSyncRequest(d); });
// #109: PiP overlay — a pushed floating layer above the playlist. The player
// fetches the uri itself (same trust model as remote_url content).
socket.on('device:pip-show', function (d) { pipOverlay.show(d); });
socket.on('device:pip-clear', function (d) { pipOverlay.clear(d && d.pip_id); });
}
function register() {
var msg = { device_info: deviceInfo(), fingerprint: fingerprint() };
if (deviceId && deviceToken) { msg.device_id = deviceId; msg.device_token = deviceToken; }
else { msg.pairing_code = pairingCode(); }
socket.emit('device:register', msg);
}
function showPairing() {
elPairCode.textContent = pairingCode();
show(elPairing);
}
function startHeartbeat() {
stopHeartbeat();
heartbeatTimer = setInterval(function () {
// #118: only beat on a socket that finished device:register, or the server's
// requireDeviceAuth() rejects the beat with device:auth-error.
if (!socket || !socket.connected || !deviceId || !authenticated) return;
socket.emit('device:heartbeat', { device_id: deviceId, telemetry: telemetry() });
// FIX C — every 4th beat (~60s) ask for a fresh playlist by re-emitting device:register;
// the server responds with a fresh device:playlist-update (deviceSocket.js). This was
// previously a duplicate device:heartbeat (comment != code), so the .wgt had NO working
// fallback refresh and relied entirely on server push. Matches the Android player.
if ((++beatCount % 4) === 0) register();
}, HEARTBEAT_MS);
}
function stopHeartbeat() {
if (heartbeatTimer) { clearInterval(heartbeatTimer); heartbeatTimer = null; }
}
// ---- remote control + dashboard preview (#120 / #121) ----
// Screen on/off uses a black overlay (a sideloaded web app can't power the panel
// off cleanly), mirroring the web player.
function showScreenOff() {
if (document.getElementById('screenOffOverlay')) return;
var o = document.createElement('div');
o.id = 'screenOffOverlay';
o.style.cssText = 'position:fixed;inset:0;background:#000;z-index:9999';
document.body.appendChild(o);
}
function clearScreenOff() {
var o = document.getElementById('screenOffOverlay');
if (o && o.parentNode) o.parentNode.removeChild(o);
}
// #109: report PiP show/clear over the existing device:log channel (tag 'pip') so it
// surfaces in the dashboard device log. Used as the PipOverlay log callback.
function reportPip(level, msg) {
try {
if (socket && deviceId) socket.emit('device:log', { device_id: deviceId, tag: 'pip', level: level, message: msg });
} catch (e) {}
}
// #125: report a command outcome to the dashboard. device:log surfaces live as
// dashboard:device-log on the open device-detail screen; device:command-result is
// a structured echo (harmless if the server doesn't handle it).
function reportCmd(level, type, msg) {
var message = '[' + type + '] ' + msg;
try {
if (socket && deviceId) {
socket.emit('device:log', { device_id: deviceId, tag: 'command', level: level, message: message });
socket.emit('device:command-result', { device_id: deviceId, type: type, level: level, message: msg });
}
} catch (e) {}
}
// #125: log the panel's control surface at startup so the dashboard shows whether
// fleet control is actually wired (backend "none" on web / consumer TV / unsigned).
function reportCapabilities() {
try {
var caps = (window.STDeviceControl && STDeviceControl.capabilities)
? STDeviceControl.capabilities() : { backend: 'none', reboot: false, panel: false };
reportCmd('info', 'capabilities',
'fleet control backend=' + caps.backend + ' reboot=' + caps.reboot + ' panel=' + caps.panel);
} catch (e) {}
}
// #120: best-effort dashboard preview. The Tizen TV runtime decodes <video> onto a
// hardware overlay plane and plays YouTube in a cross-origin <iframe>; neither can be
// read back into a <canvas> (drawImage yields black / throws). So video/YouTube fall
// back to a status card — the same shape as the web player's fallback — while images
// (same-origin / CORS-ok) capture for real. This gives the dashboard a truthful frame
// instead of a dead button.
function captureAndSend() {
if (!socket || !socket.connected || !deviceId || !authenticated) return;
var canvas = document.createElement('canvas');
canvas.width = 960; canvas.height = 540;
var ctx = canvas.getContext('2d');
var captured = false;
try {
var img = elStage.querySelector('img');
if (img && img.complete && img.naturalWidth > 0) {
try { ctx.drawImage(img, 0, 0, 960, 540); captured = true; } catch (e) {}
}
if (!captured) {
ctx.fillStyle = '#111827'; ctx.fillRect(0, 0, 960, 540);
ctx.fillStyle = '#3b82f6'; ctx.font = 'bold 28px sans-serif'; ctx.textAlign = 'center';
ctx.fillText('ScreenTinker (Tizen)', 480, 235);
ctx.fillStyle = '#94a3b8'; ctx.font = '16px sans-serif';
ctx.fillText('Live preview unavailable for video / YouTube on Tizen', 480, 280);
ctx.fillText(new Date().toLocaleTimeString(), 480, 312);
}
} catch (e) {
ctx.fillStyle = '#000'; ctx.fillRect(0, 0, 960, 540);
}
try {
var base64 = canvas.toDataURL('image/jpeg', 0.4).split(',')[1];
if (base64 && base64.length > 100) {
socket.emit('device:screenshot', { device_id: deviceId, image_b64: base64 });
}
} catch (e) {}
}
function startStreaming() { stopStreaming(); streamTimer = setInterval(captureAndSend, 1000); }
function stopStreaming() { if (streamTimer) { clearInterval(streamTimer); streamTimer = null; } }
// ---- playback ----
var player = new PlaylistPlayer(elStage, function () { return serverUrl.replace(/\/+$/, ''); });
// Multi-zone layout renderer (matches the Android player). app.js picks the renderer
// per playlist-update from payload.layout; the two never run at once.
var zoneRenderer = new ZoneRenderer(elStage, function () { return serverUrl.replace(/\/+$/, ''); });
// Video-wall sync (mirrors the web player). Drives the single-zone player as leader or
// follower. canEmit gates wall emits on auth+connection so a pre-register tick can't
// trip device:auth-error (same guard rationale as the heartbeat).
var wallController = new WallController(
elStage, player,
function () { return socket; },
function () { return deviceId; },
function () { return authenticated && !!socket && socket.connected; }
);
// #109: PiP overlay layer. Renders into #pip (above #stage); never touches the
// playlist. Reports show/clear over device:log (tag 'pip').
var pipOverlay = new PipOverlay(elPip, { log: reportPip });
// Rotate the playback stage in software for portrait / flipped signage. Tizen TVs
// are fixed-landscape, so we rotate the CONTENT (not the panel). Values mirror the
// dashboard: landscape / portrait / landscape-flipped / portrait-flipped.
function applyOrientation(o) {
// #109: apply the SAME transform to #stage AND #pip so the overlay's corner
// positions track the visible CONTENT, not the physical panel, in every orientation.
orientEl(elStage.style, o);
if (elPip) orientEl(elPip.style, o);
}
function orientEl(s, o) {
if (!o || o === 'landscape') {
s.position = ''; s.top = ''; s.left = '';
s.width = ''; s.height = ''; s.transform = ''; s.transformOrigin = '';
return;
}
var deg = o === 'portrait' ? 90 : o === 'portrait-flipped' ? 270 : o === 'landscape-flipped' ? 180 : 0;
var swap = (deg === 90 || deg === 270);
s.position = 'absolute';
s.top = '50%';
s.left = '50%';
s.width = swap ? '100vh' : '100vw';
s.height = swap ? '100vw' : '100vh';
s.transformOrigin = 'center center';
s.transform = 'translate(-50%, -50%) rotate(' + deg + 'deg)';
}
function onPlaylist(payload) {
if (!payload) return;
if (payload.suspended) {
player.stop();
zoneRenderer.clear();
wallController.exit();
applyOrientation(payload.orientation || 'landscape');
elStage.innerHTML = '<div class="card" style="position:relative"><h1>' +
esc(payload.message || 'Display suspended') + '</h1><p class="sub">' +
esc(payload.detail || '') + '</p></div>';
show(elStage);
return;
}
// If we have content + we're paired, make sure we're on the stage.
if (elPairing.classList.contains('hidden') === false) show(elStage);
else if (elStage.classList.contains('hidden')) show(elStage);
if (payload.wall_config) {
// Video wall: fullscreen content mapped into this screen's slice. No multi-zone,
// and no orientation transform — the wall geometry owns the stage.
zoneRenderer.clear();
wallController.apply(payload.wall_config);
player.setTimezone(payload.timezone || null);
player.load(payload.assignments || []);
return;
}
wallController.exit(); // leave wall mode if we were in it
applyOrientation(payload.orientation || 'landscape');
var layout = payload.layout;
if (layout && layout.zones && layout.zones.length) {
// Multi-zone layout (matches the Android player). Leave single-zone mode first.
player.stop();
zoneRenderer.setTimezone(payload.timezone || null); // #74/#75: effective tz
zoneRenderer.render(layout, payload.assignments || []);
} else {
// Fullscreen single zone. Leave any previous zone layout first.
zoneRenderer.clear();
player.setTimezone(payload.timezone || null); // #74/#75: effective tz for schedule eval
player.load(payload.assignments || []);
}
}
function esc(s) { return String(s == null ? '' : s).replace(/[&<>"]/g, function (c) { return ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;' })[c]; }); }
// ---- setup screen wiring ----
if (serverUrl) elUrl.value = serverUrl;
elConnect.addEventListener('click', doConnect);
elUrl.addEventListener('keydown', function (e) { if (e.keyCode === 13) doConnect(); });
function doConnect() {
var v = (elUrl.value || '').trim();
if (!v) { elSetupStatus.textContent = 'Enter a server URL'; return; }
if (!/^https?:\/\//i.test(v)) v = 'https://' + v;
serverUrl = v; set(LS.url, serverUrl);
elSetupStatus.className = 'status';
elSetupStatus.textContent = 'Connecting…';
connect();
}
elReset.addEventListener('click', function () {
del(LS.url); del(LS.id); del(LS.token); del(LS.code);
deviceId = null; deviceToken = null; serverUrl = null;
if (socket) { try { socket.disconnect(); } catch (e) {} }
show(elSetup);
});
// TV remote BACK key (10009): from the stage/pairing screen, return to the
// server prompt so the operator can always change the server; from setup, exit.
document.addEventListener('keydown', function (e) {
if (e.keyCode === 10009) { // Samsung RETURN / BACK
if (!elSetup.classList.contains('hidden')) {
stopKeepAwake(); stopWatchdog(); // FIX A/B: clear timers cleanly before the app exits
try { tizen.application.getCurrentApplication().exit(); } catch (x) {}
} else {
if (socket) { try { socket.disconnect(); } catch (x) {} }
elUrl.value = serverUrl || '';
elSetupStatus.textContent = ''; elSetupStatus.className = 'status';
show(elSetup); elUrl.focus();
}
}
});
// ---- boot ----
// Always reach the server prompt until the display is actually paired. Only a
// fully provisioned device (has a saved device_id + token) goes straight to
// playback; otherwise show the setup screen and ask for / confirm the server.
startKeepAwake(); // FIX A: assert + re-assert keep-awake on an interval
document.addEventListener('visibilitychange', onVisibility); // FIX B: suspend/resume fast-path
startWatchdog(); // FIX B (hardened): server-silence liveness backstop
if (serverUrl && deviceId && deviceToken) {
show(elStage); connect(); // paired — reconnect to playback
} else if (serverUrl) {
show(elSetup); elUrl.value = serverUrl; // server known, not paired — confirm + connect
elSetupStatus.className = 'status';
elSetupStatus.textContent = 'Connecting…';
connect();
} else {
show(elSetup); elUrl.focus(); // first run — ask for the server
}
// Expose for debugging
window.__st = { connect: connect, reset: function () { elReset.click(); } };
})();