Every device control was offered to every display. A browser tab was shown
"Reboot device", a Tizen TV was shown screen power, a player with no
framebuffer read was shown a live view that stayed black. They all looked
like working buttons and did nothing — the "reports success and changes
nothing" shape that keeps costing people days.
Players now declare what they can do at registration, because only the
player knows at runtime: an Android panel gains real screenshots when
accessibility is switched on and loses Tier-2 when device owner is revoked.
The dashboard hides what is not supported rather than disabling it, and the
Info tab lists the capability set so a missing control is explainable.
The declaration is three-state and the middle state is load bearing: NULL
means "has never told us anything" and falls back to a per-platform
baseline, because several hundred displays in the field will not update
before this deploys and blanking their controls would be a far worse bug.
An empty array means "I genuinely can do nothing" and is honoured.
Hiding a button is not enforcement, so unsupported commands are also
refused server-side — the socket is reachable directly and a stale tab
still renders the old controls. Group sends report skipped devices
separately from sent ones; counting an unreachable member as "sent" is how
an operator walks away believing the whole group rebooted.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Two more corrections from the cross-player audit, both mine.
audio.volume removed: a fielded Tizen panel has NO set_volume handler — the
command falls through to "unknown command" and the dashboard slider does
nothing. One of the platform branches adds a handler, and those panels will
declare the capability for themselves once they run it; the baseline exists to
describe an un-updated display, so it must not borrow credit from a build that
has not shipped.
remote.screenshot and remote.stream added: both really are implemented in the
shipped player (captureAndSend, startStreaming). Omitting them would have hidden
working controls on every legacy Tizen display the moment gating went live —
the opposite failure, and the more damaging one.
That asymmetry is the thing to hold on to: over-claiming shows a dead button,
under-claiming removes a working one, and only reading the shipped code tells
you which you are doing.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The dashboard offered every control to every display, so a browser tab showed a
reboot button that could never work. server/lib/player-capabilities.js defines the
vocabulary; this makes the web player actually speak it.
The declaration is computed, not constant, because the same index.html is BOTH the
browser player and the BrightSign player. system.reboot / display.power /
display.resolution / system.self_update are claimed only when BS.hasHost() answers —
deliberately hasHost() and not isBrightSign(), since the UA check is also true for a
widget built without node integration, which can reach none of them. Screenshots,
offline cache, transitions and native sync are each probed the same way.
Capabilities were never persisted: the column and the handler did not exist, so a
declaration would have been sent and silently dropped. Added the migration and
applyCapabilities(). An ABSENT declaration leaves the column NULL so the baseline
still applies — several hundred fielded displays declare nothing and would otherwise
lose every control at once — while an EMPTY declaration is stored as '[]' and honoured.
docs/player-parity.md records every capability against all four players with a reason
for each "no", and flags three Tizen baseline errors found while verifying it.
Tests: 1109/1109. Both inline <script> blocks in index.html parse clean.
The platform audit caught my own contract lying. I gave the Tizen baseline
offline.cache; Tizen caches only the playlist JSON (st_payload_cache, in
localStorage) and has no service worker and no media cache, so the bytes still
come from the network and an outage leaves a panel holding a playlist it cannot
play.
That is exactly the claim this model exists to prevent, made by the model itself,
and it would have applied to every legacy Tizen panel — the ones that declare
nothing and depend entirely on the baseline being honest.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The dashboard offered every control to every display. This makes the
BrightSign player answer for itself, at runtime, rather than from a
per-platform table.
The table cannot work here: the same XT245 supports remote screenshots
with an SSD fitted and not without, because the DWS snapshot endpoint
writes the full-size capture to disk before returning a thumbnail and
answers "No primary storage found" on a flash-booted unit. So the bridge
asks the host.
- autorun.brs gains StorageProbe()/SendProbeResult(): walks SSD:, SD:,
USB1: via roStorageHotplug.GetStorageStatus().mounted and reads real
capacity through roStorageInfo. FLASH: is excluded deliberately — it is
where the player boots from, not a volume the DWS accepts. Neither API
has a JS equivalent, which is why this has to cross the bridge.
- st-bridge.js posts the probe during boot and folds the answer into the
existing readiness gate, with its own 3s timeout so a widget built
without nodejs_enabled still becomes ready. computeCapabilities() then
gates remote.screenshot/remote.stream/system.self_update on a mounted
volume, the lifecycle and display commands on a live host, sync.native
on the module AND OS >= 8.2.10, and display.power on CEC module
presence.
Unknown is treated as NO throughout: an unanswered probe declares
nothing storage-gated. A control that appears once a disk is fitted is
a smaller problem than one that silently fails.
Never declared: kiosk, brightness, screen_timeout, install_apk, shell
(no BrightSign equivalent) and time (BrightScript can, this host does
not implement it — the same lie in the other direction).
- Telemetry now reports the real drive from the probe instead of the
widget's storage_quota, which it had been presenting as if it were the
disk.
Two declarations are knowingly optimistic and documented as such:
transitions/pip composite DOM over a hardware plane and may be invisible
over video (the roVideoMode.SetGraphicsZOrder("front") fix wants a
hardware experiment, not a guess), and display.power rides module
presence on a unit whose kernel logs "failed to get cec clock". Neither
is load-bearing — transitions degrade to a hard cut, blanking works by
tearing the media down.
Tests cover the storage split, the hostless case, the sync floor, the
never-declared set, and that every declared string is in the server's
vocabulary — a typo there would silently disable a control fleet-wide.
Foundation for platform-native parity. The dashboard offered every control to
every display — a browser tab cannot reboot its host, a Tizen TV has no
device-owner concept, a BrightSign has no per-window brightness — so those
buttons did nothing, silently, and read as bugs. "UI that reports success and
changes nothing" is a recurring shape here; this ends it by letting the frontend
hide what a display cannot do.
The player DECLARES its capabilities at registration rather than the server
inferring them from a table, because only the player knows at runtime: an Android
device gains real screenshots when accessibility is switched on and loses Tier-2
commands when it is not device owner.
The trap this had to avoid is the opposite failure. Several hundred displays are
in the field declaring nothing, and none will update before the next dashboard
deploy — treating absence as "supports nothing" would strip the UI for the entire
fleet at once. So an ABSENT declaration falls back to a per-platform baseline,
while an EMPTY one is honoured as a player genuinely saying it can do nothing.
Those two cases are trivial to conflate and the difference is a dark dashboard.
Baselines carry only what has always worked on that platform. Anything
conditional — screenshots needing accessibility, kiosk needing device owner,
native sync needing one L2 network — is omitted, so a legacy display shows those
controls only once it declares them. A control that appears late beats one that
lies now.
Capability names are stable strings because they are persisted per device and
sent over the wire; renaming one silently disables a control on every display
still reporting the old name. An unknown name from a NEWER player is dropped
rather than invalidating the whole declaration.
1094 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
It was generated once at pairing and never changed. On a fleet that makes it a
shared secret with no expiry: anyone who watches it typed once — an installer, a
contractor, someone filming a screen — keeps it for the life of the panel, and
the only way to take it back was to unpair and re-pair every affected display. A
customer asked whether it rotates, which was the right question.
POST /api/devices/:id/settings-pin takes { rotate: true } or { pin: "123456" },
and pushes the result to the panel over its socket immediately. The live push is
the part that matters: without it a new PIN would only take effect at the next
pairing, so an operator revoking a leaked PIN would believe access was closed
while the old one still opened the menu. The response reports whether the panel
actually took it, so an offline display is stated rather than assumed.
Validation is the security-relevant half and is pure and tested: six digits,
digits only, and a blocklist of the PINs people actually pick (repeats and
sequences) refused on explicit set and never produced by the generator. A PIN
that can be set to "0000" or left empty is a gate that is not there.
Generation uses crypto.randomInt rather than Math.random — this is a credential,
and a rotation requested BECAUSE a PIN leaked must not be predictable from
anything else. Leading zeros are padded, or roughly one PIN in ten would be five
digits and rejected by the on-device prompt.
Android applies it live via device:settings-pin instead of only at pairing. The
PIN is never written to a log on either side, and it stays out of device list
responses as before.
1084 pass; Android compiles.
Asked for by chris@chris-pc.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Three related pieces. Zones were already stored as percentages and layouts
already carried their own width/height, so this is mostly design work rather
than plumbing.
SIX PORTRAIT TEMPLATES at 1080x1920. Deliberately not the landscape set turned
sideways: "Three Column" at 33% each becomes three tall slivers, and a 15% ticker
that reads well across 1080px is a 288px band on a 1920px-tall panel, so the
portrait ticker is 12% and the PiP window is wider than tall (a 30x30 box is
square on 16:9 and 324x576 in portrait). Seeded in schema.sql for fresh installs
AND as a migration, because schema.sql never runs on an existing database — and
upgraded instances are exactly the ones with portrait panels already deployed.
THE EDITOR CANVAS followed a hardcoded padding-top:56.25% — the 16:9 ratio trick.
Authoring a portrait layout meant dragging zones on a landscape canvas: the
percentages landed correctly on the panel and looked wrong everywhere you
designed them. It now derives from the layout's own height/width, clamped so a
pathological row cannot produce an unusable editor.
THE PLAYLIST PAGE now draws where content actually lands. A playlist has no
intrinsic layout, so the server reuses #104's derivation from the items' own zone
bindings and returns it. Previously an item could be tagged "Bottom Ticker" with
nothing to say the ticker is a thin strip along the bottom — people assigned by
zone name and found out by looking at a screen. Empty zones are dimmed, because
an empty zone shows its background colour on a real panel and that is worth
seeing before publishing rather than after.
Verified against a copy of prod: 6 templates and 12 zones created, the 7
landscape templates untouched, no errors at boot, and a second boot changes
nothing. Each stacked template's zone heights sum to exactly 100%.
1074 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Reported as "rotation doesn't work correctly". It is a geometry bug, not a
rendering one, which is why it reads as mysterious.
#playerContainer is pinned `inset: 0`. Rotation set width:100vh, height:100vw and
rotate(90deg) — leaving the box in the TOP-LEFT corner and spinning it about its
own centre rather than the viewport's. On a 1920x1080 panel the content landed at
x -420..1500, y 420..1500 against a viewport of 0..1920, 0..1080: correctly
rotated, wrongly placed, cropped on two edges.
Tizen already did this correctly — top/left 50% plus translate(-50%,-50%) — and
Android does the equivalent with translationX/Y of (w-h)/2. The web player was
the odd one out, and BrightSign inherited it on top of its own hardware-plane
problem.
The rule now lives in server/lib/orientation-style.js, served to the player from
its single source, with the arithmetic pinned by tests that compute where the
rotated box actually lands on 16:9 and 5:4 panels. Three things those tests hold
that are easy to get wrong: the translate must come BEFORE the rotate (transforms
apply right-to-left, so reversing them rotates the correction too), 180 must NOT
swap dimensions (the box already fits; swapping letterboxes it), and landscape
must clear EVERY property the rotated state set (a half-reset leaves the
container stuck at 100vh wide, so rotation appears to persist after switching
back).
1074 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Audited rotation across all four players after reports it misbehaves.
Android native rootView.rotation + layout swap — the ExoPlayer surface is
inside the rotated view, so video turns with it.
Tizen CSS for graphics AND AVPlay hardware-plane rotation for video. The
code says why: a CSS-rotated <video> "blacks out" on Tizen.
Web CSS transform. Correct — a browser composites video in the DOM.
BrightSign CSS transform only, inherited from the web player. BROKEN: with hwz
enabled the video decodes onto a hardware plane the DOM cannot
transform, so the images and widgets rotate and the video does not.
A portrait panel plays sideways video.
BrightSign is the platform that does not rotate correctly, and Tizen had already
found the same wall from the other side — any platform compositing video below
the DOM needs rotation done at the output.
roVideoMode takes a transform (normal/90/180/270) and rotating the screen rotates
EVERY layer, because it happens below the compositor rather than above it. The
player now asks the host first and, when the host succeeds, clears its own CSS
transform — otherwise the graphics rotate twice while the video rotates once.
The host reports success rather than assuming it: if it cannot rotate, the CSS
path stands, which turns most of the content instead of none of it, and the
promise resolves false rather than never settling. A portrait panel showing
landscape content with no clue why is the outcome worth avoiding.
1066 pass. The BrightScript needs hardware to verify; the decision path does not.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Two things reviewed against the hardware.
REMOTE CAPTURE. An in-page canvas cannot read the hardware plane, so a
screenshot from a BrightSign is a composite with the video missing. The player
now asks the HOST, which uses the unit's own Diagnostic Web Server to capture the
real framebuffer, video included.
It has to run in BrightScript rather than the page for two reasons: the DWS is
http on localhost while the player is served over https, so the page would be
blocked as mixed content; and BrightScript is subject to neither CORS nor
mixed-content rules. Credentials are the documented default — user "admin",
password = the unit serial — which the host reads directly.
It requires PRIMARY STORAGE: the endpoint writes the full-size capture to disk
before returning a thumbnail, so a unit with no card or SSD answers "No primary
storage found." That message is passed through verbatim rather than swallowed,
and the canvas path still runs as a fallback, so a player with no disk keeps
producing the partial screenshot it can rather than nothing at all. Verified
against the real unit: the endpoint is reachable and blocked solely on storage.
THE STUCK TESTER. An opted-in player on 1.9.29-rc1 was told "holding prerelease
of the same core" when offered rc3 — so it would never move forward through
rc1 -> rc2 -> rc3, which is the opposite of what opting in is for, and would have
stopped our own XT245 ever receiving the next candidate.
The hold rule exists to stop a test build being dragged BACK to its release. It
now applies only when the advertised version IS that release: a newer prerelease
of the same core is offered normally, the release still cannot claw a tester
back, a newer core still lands, and a player that never opted in is still refused
a prerelease.
Also verified end to end on alpha: the advertised sha256 matches the served bytes
exactly, size matches, and every member of the package is stored.
1063 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Caught on hardware immediately after deploying rc3 to alpha: the player kept
playing content while reporting nothing at all, throwing every 15 seconds.
Uncaught TypeError: BS.telemetrySnapshot is not a function
The page was rc3 and the bridge it ran was older. Two causes, both fixed.
CACHE_NAME stayed at rd-player-v19 across a release that changed both the
service worker's fetch strategy and the shipped /player assets. The activate
handler deletes every cache whose name does not match, so keeping the name kept
the previous shell cache alive — including a stale st-bridge.js. Bumped to v20.
Content lives in its own cache, so this costs a small shell re-download and never
re-fetches a playlist.
The deeper defect is that the call site treated an optional bridge method as
guaranteed. It was the ONLY unguarded BS.* call in the player; every other one
checks or wraps. The bridge and the page are halves of one contract but are
fetched separately, so version skew is a normal condition, not an anomaly — it
must degrade, not throw. Now guarded on typeof, so a skewed pair reports the
fields it can and keeps heartbeating.
Worth naming the failure shape: the display looked perfectly healthy. Content
played, the socket connected, the device showed online — and telemetry silently
stopped. Anything that reports health through the same path it is breaking will
fail this way.
1056 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
A BrightSign consultant ran our v1.9.29-rc2 autorun.zip through BSN.cloud's
automated deployment. The archive reached the player and then could not be
opened — reported as invalid. Two causes, both ours.
1. COMPRESSION. We built with default deflate. The player bootstrap extracts
autozip.brs by itself before any script runs, and roBrightPackage supports a
specific set of methods, of which "no compression" is the universally safe
one. Both builders now store: scripts/build-autorun-zip.sh passes -0, and the
server-side package builder used archiver level 9 — maximum deflate — so
EVERY self-update package it produced would have failed the same way, silently
and in the field.
2. THE UNPACK API. We used roUnzip; BrightSign's own tooling uses
roBrightPackage. Converted in autozip.brs and in the self-update path.
This is the failure mode worth naming: a compressed package uploads, downloads
and deploys perfectly, then fails to open on the player. It reads as a broken
deployment rather than a broken zip, so it gets debugged everywhere except where
the bug is. Both builders now ASSERT the property rather than trusting the flag —
the build script walks `unzip -v` and refuses a compressed member, and a test
walks the local file headers of the server-built package checking method 0.
Verified by negative control: re-enabling compression fails the test.
Also adopted the shipped volume-discovery pattern in autozip.brs — probe
USB1:/SD:/SSD:/FLASH: for the archive instead of guessing two volumes. The unit
that drove this port boots from FLASH because its card interface is dead, and
extracting to a volume that does not exist fails silently.
1056 pass.
Reported by giyokun, who was right about both.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Muting was implemented three times and agreed nowhere. A YouTube item is a
cross-origin iframe, so `el.muted` reaches nothing; only the IFrame API can
touch it. Both browser-family players got this wrong, in opposite directions:
web playerVars.mute was `userHasInteracted ? 0 : 1` — autoplay policy and
NOTHING else. An item an operator muted in the admin console played
WITH SOUND, a wall follower blared alongside its leader, and the
real-time device:mute-changed toggle only ever touched `<video>`.
onReady then unmuted unconditionally, and the click-to-unmute overlay
appeared on deliberately-muted items and undid the operator's setting.
tizen the embed URL hardcoded `mute=1`, so YouTube there was PERMANENTLY
silent: the per-item flag was never read and nothing could unmute it.
device:mute-changed did nothing at all, because it dereferenced a
<video> that is null for a YouTube item.
Android was already correct and is unchanged — it is the reference here.
The rule now lives once, in server/lib/media-mute.js, served to the web player
from its single source the same way schedule-eval.js is, and mirrored in Tizen
(which ships inside the .wgt and cannot import it). The ORDER is the substance:
a wall follower is always silent (one wall, one audio source) > autoplay policy,
which is a hard constraint rather than a preference because unmuted playback
without a gesture is refused outright and costs the VIDEO > a live operator
toggle, who is looking at the screen > the item's stored flag.
shouldOfferUnmute() exists so the prompt only appears when a gesture is the ONLY
thing in the way. Prompting on a muted item trains viewers to click a button
that undoes an operator's decision.
Tizen gains enablejsapi + a postMessage bridge so a live toggle flips the embed
without reloading it — reloading would restart the video from zero every time
someone touched the control.
11 new tests pinning each precedence step separately; 1055 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
isBrightSignDevice() fell back to device.user_agent to catch panels paired
before this port existed, which registered as "Chrome 120" with a BrightSign
user agent. `devices` has no user_agent column, so the field is always undefined
on a row read from the database. The branch was unreachable in production and
passed only in a test that fabricated the field — which is precisely how dead
code survives review.
Two agents flagged it independently while working on unrelated areas, and the
schema confirms it: zero matches for user_agent in the devices table.
Those pre-port panels are recognised the moment they re-register on a build
carrying the host, which every one of them gets on its next update. Identifying
them sooner would mean persisting the user agent, and a column added solely to
track a population that disappears on its own is not worth carrying.
The test now asserts the honest behaviour: a fabricated user_agent does NOT
create a match, and a group containing such a panel reads as mixed until it
re-registers.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Two gaps that both end the same way — a panel nobody can fix without a van.
OFFLINE. Content bytes were never persistently cached. The service worker
skipped /uploads/content/ and leaned on the browser's HTTP cache, which is
reasonable on a desktop and is not a documented-persistent store here:
BrightSign guarantees survival across reboots for IndexedDB, localStorage and
SQLite, and their own answer for offline video is to cache the bytes explicitly.
A panel could come back from a power cut with its playlist intact — that lives in
localStorage — and no media to play it with.
The reason content was skipped is real, and player-cache-policy.js is what makes
intercepting it safe. Seeking video issues range requests, and naive caching is
worse than none: storing a 206 as the whole file means every later full request
gets a fragment, and answering a range request with a 200 makes some media stacks
fail outright. So only complete 200s are stored, and ranges are served by slicing
the stored body into a correct 206. The content cache survives shell
re-versioning, or every deploy would re-download the playlist over a link that may
be exactly what is broken.
SELF-UPDATE. The package can replace autorun.brs, so a truncated file is a dark
panel with no app underneath. The safety is the ordering: download to .part,
verify sha256 AND size, then delete the .done marker, rename, reboot. Marker
first is not stylistic — leaving it makes the next boot skip the archive and the
update silently never happens. A failed extract parks the zip as .bad instead of
retrying every boot, which would be a loop indistinguishable from a hardware
fault. sha256 because that is what roMessageDigest can compute; a checksum the
player cannot verify is an unverifiable package.
The decision lives on the server and is unit-tested, and the host only executes
it — re-implementing the version comparison in BrightScript would put the
prerelease trap somewhere untestable. That trap is honoured directly: a player on
1.9.29-rc1 is running something semver-OLDER than 1.9.29, so an opted-in player
HOLDS a prerelease of its own core rather than being pulled off the build it was
given to test. Narrowly — a newer core still lands, so opting in never means
never updating again.
Both loop conditions are closed by construction. The manifest and the download
come from one buffer hashed once, so a checksum cannot describe bytes we are not
serving. And the version is stamped into autorun.brs at build time by both
builders, so the script reports the version it actually is — otherwise the player
applies the update, still reports the old version, and is offered the same
package forever.
Failure always degrades to "keep running the old version": an unreachable
manifest, a missing checksum, a failed verification, a full attempt counter and
an unbuildable package all resolve to skip.
998 tests pass (was 954).
st-sync.js wrapped SyncManager but nothing drove it. The player now does: the
leader opens a new sync session on each advance, and every member — the leader
included — binds the video with attachVideo() on a NEW id only.
The leader binds from its own broadcast rather than at announce() time on
purpose. Starting when it announces would put it ahead of its followers by the
width of the network, which is the one desync nobody would think to look for
because the leader always looks correct.
Item selection stays clock-derived under both backends. Native sync replaces
only the seek/nudge drift correction, because setSyncParams has the element hold
its own alignment and correcting it ourselves would fight the platform — every
frame we moved is one it then has to undo. Keeping selection on the shared clock
is also what keeps images and widgets, which have no setSyncParams, advancing
with the videos instead of drifting off alone.
LEADER RULE: reuse the existing election (resolveGroupLeader) rather than adding
a column. It already resolves pinned-if-online, else first online member on the
shared playlist, else first by id — deterministic, stable, and already what the
group-sync payload reports. A second mechanism could only disagree with it.
Added on top: a group whose elected leader is OFFLINE falls back to our
protocol. Ours is leaderless and carries on; native sync has exactly one
broadcaster, so those members would sit waiting for an announcement that never
comes, with the dashboard showing a healthy group throughout.
device_groups.sync_backend ('auto'|'screentinker'|'brightsign') is the operator's
REQUEST; the answer comes from the existing pure resolveSyncBackend() so the
players, the dashboard and the stored setting cannot disagree. The resolved
backend, reason and downgraded flag ride in the group_sync payload and in the
group API, and the dashboard shows the refusal reason instead of a setting that
quietly isn't in force. An unrecognised value is rejected rather than stored,
because the resolver reads anything unknown as 'auto' — a typo would otherwise
return 200 and run a different protocol than the UI displayed.
FIXED WHILE HERE: the player re-entered group sync only when the group ID
changed, with a comment noting the clock protocol has no leader role. Native
sync has one, and neither a protocol switch nor leadership moving alters the
group id — so a player promoted to leader kept behaving as a follower, nobody
announced, and the group sat unsynchronised. The re-enter key now includes the
backend and the leader flag.
971 pass (+17).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The web player sent battery/storage/RAM/CPU as nulls and 'Web Player' in the
wifi_ssid column, and the bs_model / bs_os_version / bs_serial / bs_screen fields
the player already reported at registration were consumed by nothing. A browser
tab genuinely has none of that. A BrightSign has some of it, and was reporting
none.
Telemetry comes from a CACHE the heartbeat reads synchronously. The beat builds
its payload every 15s without awaiting, but the one real sensor here —
deviceInfo.getTemperature() — returns a promise; awaiting inside the beat would
either block it or serialise a pending Promise into the payload, which is exactly
how device_id once became "[object Promise]". The cache starts EMPTY rather than
null-filled and is spread last, so off-platform nothing changes and a null here
can never clobber a value another player family legitimately supplied.
wifi_ssid was actively false on a PoE Ethernet appliance — an operator reading
that column was told an SSID that does not exist. It is null there now, and the
device view shows a real hardware block instead. Android's WiFi display is
untouched.
Hardware identity is a SEPARATE writer from applyDeviceInfo, deliberately. That
function is a blind full-row overwrite, and an empty device_info once nulled
seventeen columns every five minutes because {} is truthy. These fields arrive
only on a full register, so the same shape would wipe them on every lightweight
refresh in between; COALESCE makes "no news" mean "unchanged".
The OS build gets its own column rather than reusing android_version, which is
load-bearing as a TYPE discriminator: device-detail chooses between the Android
and browser layouts with android_version.startsWith('Web/'), so writing
"BrightSign OS 9.0.189" there would have rendered a BrightSign with battery and
WiFi cards — and applyDeviceInfo would have clobbered it on the next refresh.
Storage is labelled "Player Storage", not "Storage": on this family the number is
the widget's cache quota, not the device filesystem, and it lands in the same
column as Android's real disk figures.
Schema: device_telemetry.temperature_c REAL; devices.hardware_model,
hardware_serial, hardware_os_version, output_index. All nullable, all idempotent
in the existing migration array.
973 pass (+19). The temperature tests drive a real socket into a real server,
because changing the arity of the telemetry INSERT would break every player's
heartbeat, not just BrightSign's.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
A BrightSign emitted BLANK screenshots and logged "Screenshot sent". With hwz
enabled the video decodes onto a hardware plane outside the browser compositor
— BrightSign's docs say the HTML/JS layer "doesn't see the pixels" — so
drawImage(video) produces a fully TRANSPARENT image and throws nothing.
Chromium 87, which this XT245 reports, fails the same way.
Both capture paths set captured/drawn = true purely because drawMediaFit() had
not thrown. So the dashboard showed a dead screen while the panel played
perfectly, and the zone path painted a black rectangle in place of the labelled
placeholder drawZonePlaceholder() exists to guarantee ("never a transparent
hole"). Success reported, nothing done.
isMediaReadable() does not catch this. It answers "am I ALLOWED to read this"
(same-origin / CORS), which is a different question from "did any pixels
arrive".
videoFrameIsCapturable() probes a 16x16 scratch canvas before committing to a
full-size draw. ALPHA is the discriminator, not colour: a scratch canvas starts
transparent and a real decoded frame writes alpha=255 even when the frame is
pure black, so a legitimate fade-to-black still reads as captured while
"nothing arrived" does not. A tainted canvas counts as captured, because
tainting only happens once cross-origin pixels have actually been drawn.
Probing BEFORE the draw matters twice: it avoids a wasted full-size drawImage on
every frame of a 1fps stream, and in the zone path it stops a black rectangle
being painted underneath the placeholder.
When a video is on screen but unreadable the status card now says so, because
that card is also what shows for "no content" — without the line an operator
would reasonably conclude the screen was blank.
Not gated on BrightSign: the same silent failure exists for any stalled decoder
or engine that declines to hand back frames.
10 tests, 964 pass.
Blanking the screen took three attempts on real hardware, and each failure was
the same lesson from a different angle:
1. black overlay -> the video played straight THROUGH it. With hwz
enabled the widget decodes onto a hardware plane and
the graphics plane sits behind it; z-index is
irrelevant across planes.
2. pause + hide element -> playback stopped and the LAST DECODED FRAME stayed
on screen. Hiding a DOM element does nothing to the
plane, which is not part of the DOM.
3. pause + remove src -> releases the plane. Black.
+ load()
Coming back re-mounts through nextItem(), because a torn-down element cannot be
resurrected. The playlist keeps advancing while the screen is off, so each newly
started item is torn down as well — caught on 'play' in the capture phase, or the
next video lights the panel back up a few seconds later.
CEC is now explicitly not load-bearing. Our XT245 logs "failed to get cec clock"
and does not respond to it at all, which is precisely why blanking cannot depend
on a cooperative display: plenty ignore broadcast CEC or need direct addressing.
displayPower() stays as opportunistic best-effort alongside the teardown.
Verified on hardware: not black, then frozen frame, then black.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The web player handles four of the ~20 fleet commands, because a browser tab
genuinely cannot do more. A BrightSign can, and was inheriting the browser's
limits for no reason.
screen_on/screen_off now send CEC Image View On (0x0D) / Standby (0x36) so the
display actually sleeps. The overlay only painted the screen black: the panel
stayed lit, drawing power and at risk of burn-in. Best effort by design — some
displays ignore broadcast CEC and need direct addressing — so displayPower()
returns false when unavailable and the overlay is applied either way, meaning
something visible always happens.
reboot was silently ignored: the dashboard button did nothing on a web player.
It now goes through the host to RebootSystem, and still logs a clear "not
supported" off-platform rather than failing quietly.
set_volume applies to whatever is playing AND is re-applied on every subsequent
'play' event, caught in the capture phase because media events do not bubble.
Media elements are created per item across fullscreen, zone and preload paths,
so setting volume once would otherwise last only until the playlist advanced.
Wall followers stay silent throughout — that is deliberate, not an oversight.
A dual-output player addresses HDMI-N for the screen it actually paints, so
output 2 sleeps its own display rather than output 1's.
954 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The bridge stored device_id in the registry and the display still came back as a
NEW device on the next boot. The id is not an identity on its own: the server
authenticates a claim to an existing display with the token, so an id presented
without one reads as a brand-new player and gets a fresh row.
device_token now sits alongside device_id in the registry, getConfig adopts both,
and clearIdentity forgets both — a stale token must not outlive the identity it
belongs to.
Found on an XT245, not in a test, which is why the three new cases name the
symptom rather than the mechanism. 951 pass.
Also worth recording from the same session: the duplicate rows had a second
cause. The widget's storage_path was pointing nowhere useful, so localStorage
had no persistent home and the per-install fingerprint salt was regenerated on
every boot. With storage_path set correctly the cache directory now exists on
the player and the fingerprint is stable, which is what stopped the churn; the
registry identity is the belt to that pair of braces.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
st-sync.js wraps SyncManager, the native protocol. Three properties drove the
shape of it. It repeats the sync broadcast at 1Hz so a player powered on late
still joins, which means acting on every repeat would reload the video once a
second forever — on screen that reads as a stutter, not as a sync fault, so the
id dedupe is mandatory rather than an optimisation. The leader starts from its
OWN broadcast rather than at announce() time, or it runs ahead of the group by
the width of the network. And attachVideo refuses an element with no
setSyncParams instead of half-syncing it.
offline.html is the local fallback the host falls back to after three failed
loads. It names the server, keeps probing with capped backoff so a site full of
panels cannot storm a server that is coming back, and asks the HOST to restart
the player when it answers — never navigating itself, for the same reason the
player never reloads itself here.
The resolver now models multicast reach. All-BrightSign groups spread across
subnets no longer get native sync: each subnet would sync neatly within itself
while drifting from the others, and the dashboard would show a healthy group
throughout. The IP comparison is a heuristic so it is used in one direction
only — differing networks are evidence against, matching ones are never proof
for, and unknown addresses block nothing.
st-sync.js is served from its single source like the bridge, and the SD card
deliberately carries neither: the player pulls both from the server so a stale
copy on a card can never skew from the player using it.
948 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Reviewed autorun.brs and st-bridge.js line-by-line against the real examples
instead of the prose docs. Five defects, three of which would have been silent.
The registry API is asynchronous and section-oriented: read(section, key)
returns a Promise and writes take an object, write(section, {k: v}). The bridge
treated both as synchronous, so deviceId() returned a Promise object — truthy
and non-empty — and a panel would have registered as "[object Promise]" while
its real row sat unclaimed. It now prefetches into a cache behind onReady(), and
connect() waits for that before registering.
brightsign_js_objects_enabled: true is required alongside nodejs_enabled for
require("@brightsign/*"). Without it the bridge degrades to no-ops and the
player loses identity and restart delegation — which would have read as
"BrightSign doesn't work" rather than as one missing flag.
storage_path is a directory name, not a volume, and storage_quota is a string;
the local fallback URL needs its volume (file:/SD:/offline.html). Added
security_params and hwz_default to match the examples.
SyncManager does not work unless networking/ptp_domain is "0", which needs a
reboot to apply. Done only when this player is configured for native sync, and
read-before-write so it reboots once rather than on every boot.
Confirmed correct as written: messageport, the roHtmlWidgetEvent loop, and
RebootSystem(). The notes also state a widget URL may be an externally hosted
page with the same JS API access — the favourable answer to the question the
original probe was built to ask.
Bridge tests now model the async section-oriented registry, so a synchronous
stand-in can never hide this class of bug again. 931 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The bridge and the host existed but nothing loaded them. Now the player does.
restartPlayer() replaces every location.reload() call site. On BrightSign a
page-initiated reload does not reliably bring the roHtmlWidget back, so the page
asks the host to rebuild it and only falls back to reload() when no host is
there to take the request. That covers the deploy path, the operator refresh,
the service-worker activation and the manual reset.
Identity now round-trips through the registry, which outlives localStorage on
this platform: getConfig() adopts a registry identity when local storage comes
back empty, instead of re-pairing and spawning a second row for a panel that is
already provisioned. The operator reset clears the registry too — otherwise it
would clear localStorage, get the same identity straight back on the next boot,
and reset nothing.
Registration reports platform 'brightsign' rather than "Chrome 120", which is
what sync-backend.js resolves native-vs-ours from, plus model, OS, serial and
which output this widget paints.
Dual output needed a collision fix: autorun.brs gives the second HDMI output its
own widget, and both widgets share an origin, a registry and one SD
storage_path. Un-namespaced, output 2 would read output 1's config, install salt
and device id and the two would collapse into a single device row. Storage keys
and registry keys are now suffixed per output; screen 1 keeps the bare names so
nothing existing moves.
The bridge is served from its single source so the copy the player loads can
never skew from the one on the SD card next to autorun.brs, and it is served to
every player rather than gated on a user agent — a panel reporting an unexpected
UA would otherwise silently lose restart-instead-of-reload.
Two test harnesses extract player functions and run them in an isolated scope,
so they now supply SCREEN_SUFFIX; one gained a case proving two outputs of one
player get distinct identities. 927 pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The player is the unmodified web player in an roHtmlWidget — that already runs
on real hardware. What was missing is everything a page cannot do for itself.
autorun.brs becomes a host rather than a URL wrapper. It owns the widget
lifecycle, because a page-initiated location.reload() does not reliably bring an
roHtmlWidget back: a deploy on 2026-07-28 reloaded every connected player and
the BrightSign was the only one that never returned. The page now posts
{type:"restart"} and the host rebuilds the widget. It also retries load-error
with backoff, falls back to a local page, and runs a heartbeat watchdog that
catches the case load-error never reports — a page that loaded fine and then
wedged on a dead socket or a stalled decoder.
st-bridge.js is the page's half over @brightsign/messageport: registry-backed
identity (localStorage is origin- and quota-bound, the registry is not),
restart-instead-of-reload, heartbeat, and sync-backend reporting. Every method
degrades to a no-op off-platform, so it is safe to load unconditionally.
sync-backend.js decides whose synchronisation a group runs. Ours is
clock-derived and spans any mix of Android, web, Tizen and BrightSign; BrightWall
is frame-accurate and BrightSign-only. auto picks native when every member is a
BrightSign. The refusal that matters: native sync selected for a mixed group
downgrades and says why, because a half-synced group would look perfectly
synchronised on the dashboard while one panel drifted alone.
Dual output via output_mode single|dual|clone — a second widget loads the same
player with &screen=2 so the server can give it its own playlist.
Written against the BrightDeveloper docs; not yet run on hardware. The README
lists what is unimplemented, including the BrightWall runtime API, which that
doc set does not cover.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
device:playback-state was the only relay that forwarded the client's payload verbatim. The workspace
lookup correctly used currentDeviceId — the socket's authenticated device — but the object passed on
to the dashboard was whatever the player sent, including any device_id it chose to put there. So one
device could report playback progress attributed to a different screen in the same workspace, and
the dashboard had no reason to doubt it.
Every other relay in this file stamps the authenticated id. This one now matches.
882 server tests green.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
"Default Content" is persisted by the device route, snapshotted and restored by the settings layer,
offered in the device form in five languages — and read by nothing. Grep the whole tree and it
appears only in those places, the schema, and this checklist. It is absent from assemblePayload,
from every socket payload, and from all four players.
Counting it as "content assigned" therefore told the operator their screen was set up while the
screen itself went on showing "waiting for content" — the checklist confirming the one thing it
exists to confirm, incorrectly. It now counts only a playlist or a layout, both of which really do
put something on a display.
An existing test asserted the opposite ("any of the three ways of assigning counts"). It encoded the
same false premise, so it is replaced by one that pins the corrected behaviour along with the
evidence for it. The column and the form field are left alone — whether to implement or remove the
feature is a product decision, and this change only stops the checklist making a claim on its
behalf.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Give every item on a sync-group playlist a daypart — "menu boards 06:00-22:00" — and at 22:00 the
whole group kept displaying, or looping, whatever had been in-window last. An identical ungrouped
screen showed "Nothing scheduled right now" correctly.
The group schedule tick filters items by the same scheduleAllows check as solo playback. With
everything filtered out the period is zero, so the target is null and the tick simply returned.
Nothing else was watching: group members are schedule-driven, so renderContent arms no advanceTimer,
and a group-rendered video is created with loop = !!groupSync. Solo playback routes this exact
condition into the idle card; group playback had no equivalent, on either player.
Both ticks now tear down and show the idle card when the schedule has nothing live, and pick up
again when the daypart re-opens.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Taking a display out of a sync group, or deleting the wall it belonged to, froze it on whatever was
playing. The clip looped forever and every later refresh took the "unchanged" branch, because the
element was attached, playing and un-errored — healthy by every check the player makes. Only a
reboot cleared it.
On the web player, reconcileAdvanceTimerForMode re-arms a solo timer for widgets and images but
skips video and YouTube, on the grounds that they "self-advance via their own end handlers". The
handler that is live at that moment, though, was built for the mode being left: a group-rendered
video was created with `loop = !!groupSync`, a wall-follower video with `isFollower` true, and both
are captured in the closure at render time. A looping element never fires `ended`, and a follower's
handler declines to advance — so nothing self-advances and nothing re-renders. It now re-renders
whenever the element on screen is still looping, rather than guessing which media types can look
after themselves.
Tizen had the same freeze by a different route. GroupSyncController.exit and WallController.exit
both call player.invalidate() for exactly this purpose, but invalidate only cleared the change
signature — and load() returns at the continuity check ("current item survives, just retarget the
index") before reaching any render, so the invalidate was a no-op. It now forces the next load to
re-render, which is what those call sites always intended. On Tizen this froze every item type, not
just video, because `single` skips the timer in all of the renderers.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The schedule dialog offers "Content (single item, optional)". The value was cross-tenancy validated
and stored faithfully, and then read by nothing. services/scheduler.js acts on exactly two columns,
layout_id and playlist_id; content_id is consulted nowhere in the codebase. So picking a file and
saving produced a schedule that fired and changed nothing — while the calendar drew a block labelled
with that filename, as confirmation that it would.
Rather than thread a third override type through the engine and every player, the schedule now gets
a playlist containing that one item. That is the shape the entire pipeline already understands:
publish, assign, push, snapshot, offline cache and all four players work on it unchanged.
It is published through the shared publishPlaylist path rather than by hand-rolling the snapshot,
because players read denormalized fields out of published_snapshot (filename, mime_type, filepath,
remote_url, per-item schedules) and a second copy of that shape here would rot the first time it
changed.
An explicit playlist override still wins and no throwaway playlist is created; a schedule with
neither content nor playlist is untouched.
5 tests covering all of those, including that the generated playlist lands in the right workspace and
that its snapshot carries the fields the players need rather than just the id.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
A recurring schedule ran forever. The engine compared weekday and HH:MM and dropped the date
component entirely, so recurrence_end was never read: a campaign set to finish on the 1st was still
switching screens weeks later. The same omission made a recurring schedule live before its start
date.
The calendar does read recurrence_end, so it drew the campaign as finished while the screens kept
obeying it — the two views disagreeing is what made this hard to see from the dashboard. The end
date is offered on the form, so it has to mean something.
The date window is inclusive at both ends: an end date of the 5th means the 5th runs to its normal
end time, which is what someone choosing that date means. An open-ended recurring schedule is
untouched and still runs indefinitely.
NOTE, because this one really does change live screens: any recurring schedule that has been running
past its end date will now stop. That is the intended behaviour and was confirmed before making the
change, but it is the difference between this commit and the calendar fix alongside it, which
changes only what is drawn.
6 tests: stops after the end date, the final day still runs in full, does not run before the start
date, unchanged inside the window, open-ended schedules unaffected, one-offs unaffected.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The calendar is the operator's only view of what is scheduled, and it disagreed with the engine in
both directions for the two most-used repeat presets.
The expansion stepped by the recurrence unit from the schedule's original start:
- WEEKLY advanced a whole week at a time, so dayOfWeek never changed and a
FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR rule could only ever match its start day. Created on a Monday
it drew one event a week; created on a Saturday it drew nothing at all.
- The walk began at the original start under a 366-iteration cap, so a schedule begun more than a
year ago never reached the current week and drew nothing.
The engine evaluates day-of-week directly, so those schedules were running Mon-Fri the whole time.
Screens switched content the calendar said was not scheduled.
The expansion now walks the visible range day by day and applies the same rule the engine does, so
the drawing follows what actually happens. Cost is bounded by the window being displayed rather than
by how long ago the schedule was created, and the loop re-anchors the time of day on each step so a
DST boundary does not drift the instances.
Overlap is left to resolve as it already does: a shorter, higher-priority schedule takes over while
it is active and the recurring one resumes underneath when it ends. Nothing here changes what fires
— only what is shown — so this cannot alter live screens.
8 tests: five events for a Mon-Fri rule whichever day it was created on, a two-year-old daily
schedule drawing again, WEEKLY-without-byDay still meaning the start's weekday, INTERVAL honoured,
recurrence_end stopping the drawing, one-offs unaffected, and durations preserved.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Creating a schedule validates every reference it carries against the caller's workspace — content,
widget, layout, playlist all go through checkRefInWorkspace. zone_id was the one polymorphic
reference left out of that list, so a schedule could be pointed at a zone belonging to another
workspace's layout.
It needed its own check rather than a sixth entry in the table: layout_zones has no workspace_id
column of its own. A zone belongs to a layout, and the layout carries the workspace, so the
ownership question has to be answered through that join. A zone on a platform-template layout
(workspace_id IS NULL) is allowed, matching how the other references treat templates.
882 server tests green.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
devices.playlist_id is ON DELETE SET NULL, so the database detached correctly — but the handler
emitted nothing, so a screen kept displaying the deleted playlist until it happened to reconnect or
was restarted. You delete a playlist to take content off the wall; the wall carried on showing it.
Every sibling mutation in this file already pushes (publish, assign), and DELETE
/devices/:id/playlist was given a push for precisely this reason: "so the screen stops, rather than
leaving the old content up until something else happens to update it".
The affected devices are read before the delete, since the association is gone the moment it runs.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Replacing the single item of a one-item playlist did nothing. The old promo, board or clip kept
playing while the dashboard showed the new playlist published and the device perfectly healthy —
only a reboot or a manual refresh cleared it.
#157 defers a rotation so a live item is not yanked mid-play, and applies it "on the next natural
advance". For a one-item playlist there is no such thing, by design: single-item rendering
deliberately never advances. A video gets `loop = (playlist.length === 1)` and so never fires
`ended`; a YouTube embed loops for the same reason and skips its safety net; a solo widget is "held"
on a self-re-arming refresh that never calls nextItem, because reloading it would reset a directory
board's scroll. Tizen is worse still — `single` makes every renderer skip its timer, so images
freeze too.
Two guards, the same pair already applied to the Android controller:
- A one-item playlist is never deferred. There is nothing to protect from being cut off, since
nothing was going to advance anyway.
- Any deferral that does happen gets a 60-second deadline. The deferral is a bet that an advance is
coming; if the bet loses, the change must still land rather than strand the screen on content the
operator has already replaced.
Verified in headless Chrome: a one-item playlist holding a solo widget (the "held" case that never
advances), its only item replaced with a different widget — the screen followed, with no reload and
no restart. Before the change it stayed on the replaced item indefinitely.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
In a multi-zone layout a zone's video advanced only on `ended`. On the web there was no error
handler and — alone among the zone branches, which all arm a timer — no timer either. On Android the
zone player listened for STATE_ENDED with no error listener and no fallback.
A playback error lands in STATE_IDLE, never STATE_ENDED, so nothing advanced. A 404, an unreachable
remote_url, a clip the device cannot decode, or content not yet cached while the device is offline
(the zone then falls back to the server URL, which fails with no network) all had the same result:
that region of the screen went black and stayed black for days, while every other zone kept rotating
normally. It reads as a rendering bug rather than a bad file, and nothing self-heals — the layout has
to change or the app has to restart.
Both fixes already existed elsewhere and were simply not carried across. MediaPlayerManager treats a
playback error as a completion for exactly this reason ("Root-2: a corrupt/undecodable video used to
freeze the playlist forever"), the fullscreen web path has both an onerror and a timer, and Tizen's
ZoneRenderer has an onerror plus a duration+5s safety net. The multi-zone paths were the gap.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Every web and BrightSign player nulled seventeen of its own device columns every five minutes.
The browser player's refresh-register sends `device_info: {}` on a 300-second timer — it has nothing
new to report, it just wants a fresh playlist. But `{}` is truthy, and applyDeviceInfo is a blind
full-row overwrite with no per-field presence check, so it bound undefined for every column.
better-sqlite3 stores undefined as NULL rather than throwing, so the write succeeded and the row was
quietly emptied: android_version, app_version, screen_width/height, render_*, ota_status and
attempts, tier, the four capability flags and the four volume/brightness columns.
Android never hit it, because it always sends the full object. So this degraded exactly the client
family that cannot be inspected any other way — a browser player has no adb, and the dashboard row
is all there is. Fleet view, resolution diagnostics and any version-based logic read blank for them,
which also makes evaluating a browser-based platform look worse than it is.
The surrounding code already anticipates the refresh shape: recordReconnect and persistIdentity are
both gated behind `if (!isPlaylistRefresh)`. This call was the one that was not.
5 tests, including one pinning the driver behaviour the bug depended on — undefined binds as NULL
rather than throwing, which is why this was a silent five-minutely wipe instead of a loud error.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
The suspended branch replaces the whole status overlay with its own markup, and that markup does not
contain #statusText. showStatus then did:
document.getElementById('statusText').textContent = msg;
so every later call threw a TypeError for the life of the page. The consequences got worse the
further down they went:
- Each refresh beat re-emits device:paired, whose handler calls showStatus('Waiting for content...')
— so the player raised an uncaught error and sent itself a "crashed" exit beacon every few minutes
while suspended. This is very likely the "Cannot set properties of null (setting 'textContent')"
the comment near the exit-signal contract says could never be traced.
- showNothingScheduled() calls showStatus BEFORE arming its 30-second re-check. So once the account
was restored, a playlist whose dayparts had all closed left the screen on the stale orange
"Account Suspended / Please upgrade your plan" card with no retry timer at all — it never
re-checked the schedule and never recovered without a reload.
showStatus now rebuilds the element if it is missing rather than bailing, so the message the caller
asked for is actually displayed and the recovery path continues.
Verified in headless Chrome against the real player: destroy the overlay exactly as the suspended
branch does, then call showStatus — no throw, no uncaught page error, and "Waiting for content..."
on screen.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
Editing a layout did nothing on a web screen that was already showing one. Add a zone, move an item
between zones, resize a zone, switch layouts, clear the layout — all silent, for as long as the item
list itself stayed the same.
Two reasons, and both had to be fixed:
- The change fingerprint covered item identity, order, revision, schedules and transition, but not
zone_id — so moving an item from one zone to another produced a byte-identical fingerprint
(published_snapshot is ordered by sort_order, so the order did not move either).
- The layout is not part of the item list at all, so a change to it could never appear in an
item-derived fingerprint. `layout` was assigned and then the function returned "Playlist
unchanged", and in multi-zone mode nothing else re-renders: each zone runs its own timers and
renderContent is never called again. The no-change health check does not help either, because the
old zone divs still hold media so the surface looks attached.
zone_id now sits in the item fingerprint, and the layout gets its own signature covering the layout
id and every zone's geometry, stacking, type and fit. Tizen's ZoneRenderer has always compared a
zone signature — this is the web equivalent, and it is the same defect that was fixed on Android
this week.
Verified in headless Chrome against the real player: a third zone added IN PLACE (same layout id,
same item list, no reload, no restart) re-rendered the screen to three zones. Before the change that
update was discarded as unchanged.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
