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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.
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| .. | ||
| config | ||
| db | ||
| lib | ||
| middleware | ||
| player | ||
| routes | ||
| scripts | ||
| services | ||
| test | ||
| ws | ||
| .gitignore | ||
| config.js | ||
| package-lock.json | ||
| package.json | ||
| server.js | ||
| smoke-ui.js | ||
| version.js | ||