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Author SHA1 Message Date
ScreenTinker db8846a139 BrightSign: report what the host knows, through the channels the other players use
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A BrightSign could see things the page cannot ask for — the uptime, the wired IP,
the video mode in force, which volume it booted from, whether a staged package
applied — and it printed all of it to a serial console. On a panel on a wall that
is the same as reporting nothing.

The cost was concrete and recent. A single bad string literal stopped the host
script compiling; the only evidence anywhere was one line on a cable, and from
the server the display looked identical to one that had never started. Diagnosing
it needed someone physically present with a serial adapter. Every other player
reports its own failures.

Three hops, each thin: the host posts, the bridge carries, the player emits on
the channels it already uses (device:log, device:event, and the telemetry the
heartbeat has carried for releases).

The pre-widget phase is the part that matters and the part that was hardest to
reach — the storage probe, a pending package being applied, the video mode being
set, all happen before there is a page to talk to. Those lines accumulate in a
buffer and flush the moment the widget exists, so the boot story arrives even
though it happened before anyone could listen. BrightScript has no global store
here (no GetGlobalAA), so the buffer is threaded explicitly; losing the boot
entirely was the worse option.

Two things become incidents rather than console lines: the watchdog rebuilding a
wedged widget, which is the most important thing a player does unattended and
previously healed in silence — a panel rebuilding itself every two minutes looked
exactly like a healthy one — and a load-error, which now names the resource that
failed. Both use event types the server actually accepts; an invented one is
dropped silently and would have been just as invisible.

Host telemetry merges into the existing snapshot rather than opening a channel,
and the host's numbers win where they overlap: navigator.storage.estimate()
describes the widget's cache quota, not the disk, so a panel can report gigabytes
free while the volume holding them is full.

Two API traps caught in my own new code before it shipped, both the same shape as
the ones being fixed: Str() applied to a value already documented as a String
(it is for numbers, and would abort the event loop while reporting a diagnostic),
and Stri() handed a float from an inline division. The checker now pins the first.

Verified on the XT245: boots clean, plays, online. The bridge and player halves
are served BY the server, so they take effect on the next deploy.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
2026-08-06 00:02:33 -05:00
ScreenTinker c2effc9f5f BrightSign: use the platform's own file-existence idiom, and don't re-fetch a staged package
Both found while watching a real self-update run end to end on the XT245.

FileExists now uses roReadFile + type(), which is what BrightSign's own published
autozip.brs does (their CheckFile). MatchFiles is for LISTING a directory; as an
existence check it has already burned this codebase once, passing a full path as
both arguments so it could never return true for anything. Correcting it to a
directory plus a bare name did work — I misread a mid-cycle inspection as a
second failure and it was not — but roReadFile takes the full path every call
site naturally has, needs no reasoning about volume-root semantics, and is the
form the vendor ships. The narrower idiom is worth having here precisely because
nothing in CI can tell us when this is wrong.

CheckPackageUpdate now returns early when a package is already staged. Observed
on hardware: the periodic check fired in the gap between staging an archive and
the reboot that applies it, and pulled the whole thing down a second time.
Harmless on a desk; on a metered or marginal link it is exactly the waste the
rest of this release exists to remove.

The self-update chain is now proven on hardware, twice: check, download, sha256
and size verify, stage, reboot, staged unpack, move into place without touching
screentinker.json, mark done, reboot into it. The player reports 1.9.29-rc5 and
its autorun.brs carries the archive's timestamp rather than a hand-copied one.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
2026-08-05 23:22:09 -05:00
ScreenTinker 647a2bcc56 BrightSign: replace the Roku APIs, and a literal that stopped the script loading
The host scripts were written against the wrong reference. BrightScript is
Roku's language, the two API references read almost identically, and nothing
here can run either — so a call to an object that does not exist looked exactly
like a call to one that does. Verified on an XT245 and against BrightSign's
published reference; every item below was confirmed, not guessed.

THE ONE THAT COST A BOOT. `body$ = "{""width"":"` is not an escaped quote —
BrightScript has no escape sequences, so that is three adjacent literals with no
operator, and the compiler rejects the WHOLE FILE:

    ScriptLoadError: Syntax Error. (compile error &h02) in SSD:/autorun.brs(196)

Not a broken feature — no player at all, on a display showing nothing. Built
with Chr(34) now.

THE ONE IN THE FIELD. MatchFiles takes a DIRECTORY plus a pattern and returns
nothing when the pattern contains a separator; we passed a full path as both
arguments. FileExists() could never return true, for any file, on any player.
That is exactly what a consultant hit: "[st-autozip] no autorun.zip on any
volume" printed while `dir SD:` listed autorun.zip. It also silently disabled
the entire self-update path. (Related: `autorun.zip_invalid` on his card is not
an accusation — it is the rename BrightSign's own example performs AFTER a
successful unpack. Our STORED-only insistence fixed a problem that was never
there; deflate32 is supported.)

Roku objects that do not exist here, each of which disabled a feature quietly:
roFileSystem (~20 sites — the update path could never mark a package applied),
roMessageDigest (verification returned false unconditionally and burned an
attempt counter), PostFromStringWithRetry (a snapshot request raised "member
function not found" from inside the event loop and took the player down).
Replaced with MoveFile/DeleteFile, roHashGenerator, and an async POST on a
message port, which is the only documented way to read a POST body.

Unpack() returns Void, so `if not package.Unpack(...)` was a type error dressed
as an error check; success is now proven by looking for the extracted file. And
Unpack() DELETES everything already in its target — unpacking an update to the
volume root would have erased the player's provisioning and its whole content
pool as a side effect of a routine upgrade. It stages to a directory of its own
and moves files into place, deliberately never overwriting screentinker.json.

Also: SetMode() takes one argument (rotation belongs to SetScreenModes, which
REBOOTS, so it only fires on a real change); GetStorageStatus is unreliable with
"USBn:"; a load-error names its resource in `uri`, not `url`.

server/test/brightscript-api-surface.test.js is the cheap thing that would have
caught all of it: a deny-list of Roku APIs plus the argument shapes and literal
forms that compile and then do nothing. It cannot prove the scripts are right;
it stops these specific mistakes coming back. It has already earned its keep —
it caught a comment I had broken while writing this change.

Verified on hardware: the player loads clean from the NVMe, restores its cached
playlist and plays BEFORE the server connects, fetches media with the new
?rev= revision, and registers against alpha rc4.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
2026-08-05 22:57:36 -05:00
ScreenTinker 76ba6c7506 BrightSign: resolve the storage root by probing, and put widget storage on it
Verified on the XT245 after fitting an NVMe.

StorageRoot() knew only FLASH and SD. That unit has a dead card slot and boots
from internal flash, so the moment real storage was fitted and the deployment
moved onto it, every derived path — the offline page, the widget's local
storage, the self-update paths — resolved to "SD:", a slot with nothing in it.
It now probes in the order the OS itself searches for an autorun script, so the
answer matches the volume the player actually booted from.

storage_path was "/cache", which carries no BrightSign drive specifier and so
resolves outside the writable volumes. It is now an absolute path on the boot
volume, confirmed on hardware: after the move the player created SSD:/cache
where before it only ever touched FLASH:/cache.

Note for anyone chasing the same thing: this did NOT enable the service worker.
The widget still never requests sw.js, so the player's inability to cache
offline on BrightSign is not a storage-configuration problem. The capability is
declared honestly now (see the previous commit) rather than advertised and unmet.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
2026-08-05 22:32:17 -05:00
ScreenTinker 5fe55307ba brightsign: declare capabilities from real hardware state
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.
2026-08-05 14:12:44 -05:00
ScreenTinker 1c7d5f1359 Rotation on BrightSign must rotate the output, not the DOM
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
2026-08-05 12:49:26 -05:00
ScreenTinker df3a2879fa Remote screenshots use the framebuffer, and an opted-in tester can move forward
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
2026-08-05 12:33:34 -05:00
ScreenTinker 30a71c1319 autorun.zip must be STORED and opened with roBrightPackage
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
2026-08-05 11:36:18 -05:00
ScreenTinker 8fd6eb75d5 BrightSign: cache content for offline, and let the package update itself
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).
2026-08-05 10:09:00 -05:00
ScreenTinker 4e625abf50 BrightSign: boot from internal flash, proven on hardware
An XT245 with liquid-corroded microSD lines could not read any card, in any
format, with known-good code — the kernel log shows the mmc1 host probing at
400kHz and no card ever answering, while mmc0 (eMMC) is healthy. That unit
turned out to be fully deployable anyway: the player boots FLASH:/autorun.brs
straight from internal storage.

    Loading 'FLASH:/autorun.brs'
    BSPLAY: https://screentinker.com/player?platform=brightsign&model=XT245

So the card is not the only path, and a dead slot is not the end of a player.
Files go to /storage/flash over SFTP and the player runs them on the next boot.

The first attempt failed because the script hard-coded SD: for its own assets:
it loaded from flash and then could not find index.html. StorageRoot() now
probes for FLASH:/autorun.brs and falls back to SD:, and every path that reads a
sibling file — screentinker.json, offline.html, the crash-dump directory — goes
through it.

selftest/ is the bisect that settled the hardware fault: the dev-cookbook's own
html-starter pattern, so the script is not a variable. When known-good code
failed identically, the medium was proven at fault rather than our port.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Uaeo9MvzKoyXuN6ZsbhtkL
2026-08-04 23:26:43 -05:00
ScreenTinker 5901067d8a Finish the BrightSign port: native sync, offline fallback, multicast guard
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
2026-08-04 21:43:42 -05:00
ScreenTinker 7fb94fbf70 Correct the BrightSign port against the dev-cookbook examples
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
2026-08-04 21:27:53 -05:00
ScreenTinker ce854ff2d8 Wire the BrightSign bridge into the web player
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
2026-08-04 21:07:47 -05:00
ScreenTinker 6f5907a1d4 BrightSign: supervised player host, JS bridge, and per-group sync backend
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
2026-08-04 20:26:12 -05:00
ScreenTinker 41ebb02368 Add a BrightSign capability probe
Not a port — a way to answer on real hardware the questions that decide what a port
looks like, instead of guessing them from documentation.

The one that matters is persistence. ScreenTinker's device identity (deviceId,
deviceToken, paired, serverUrl) lives in localStorage, and on BrightSign that behaves
like sessionStorage: without a durable store every panel re-pairs on every boot and
spawns a new device row. The registry is the alternative, so the probe reports whether
it resolves and whether either store survives a power cycle.

It runs LOCALLY first on purpose. That establishes whether the @brightsign/* modules
resolve at all, separately from whether a remotely-served page can reach them — the
question that decides between reusing the hosted web player and building a local shim
that owns the registry and passes identity to an iframe via postMessage. Without that
split a failure is ambiguous: an origin restriction and nodejs_enabled not taking look
identical. Once local works, changing one line points it at a hosted copy and the
delta is the answer.

Also reports the web-platform features the player leans on — service workers and the
Cache API for content caching, h264 in <video>, CSS clamp() for the directory-search
keyboard — plus model, OS and Chromium version, since Series 4 is pinned to Chromium
87 and would give a misleadingly pessimistic result.

SD-card ready: FAT32, both files at the root, empty card. Remote devtools on :2999.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 22:49:50 -05:00