Two halves of the same first paint. The panel showed «Source unavailable»
in every row until the lazy metrics chunk arrived, because value() could
not tell "not loaded yet" from "source is dead"; and metrics() ran inside
render, walking the HA registry and unioning the clean floor of every
space synchronously — 11 s on the large-house fixture.
- totalCleanFloorAreaM2 computes the space's masonry and junction
topology once per SPACE and hands them to innerContourForRoom, which
otherwise unions the whole space again for every room: 11 045 → 1 488 ms
on that fixture, same 306.3 m². The card has always done this through
its own _innerContour cache; the panel now does the same.
- Aggregates leave the render path: the first frame paints skeletons and
the work starts right after the frame is shown (timeout → rAF →
timeout, never requestIdleCallback, which under load would leave the
skeleton up for seconds). Stale memo keeps the previous number on
screen instead of flashing back to a skeleton.
- valueState() separates pending from unavailable; a pending row keeps
the same plate, grid and height and carries a pulsing rectangle the
height of the line, replaced by the value with a short fade. Reduced
motion keeps the rectangle and drops the pulse.
- Panel enter/exit animation (#505, 190 ms) is now actually visible —
the main thread is free — and the smoke witnesses it.
Mutants: summary-first-paint-shows-unavailable, summary-metrics-block-first-frame,
summary-area-recomputes-walls-per-room, summary-stale-metric-falls-back-to-skeleton.
Issue: #509
User-Visible: yes
A fully fictional house (plans, devices, states) used for README screenshots,
the demo GIF and headless smoke tests — so no real home data ever appears in
public materials.
srv/demo.html — self-contained host page: <ha-icon>/<ha-card> stubs and a
fake hass (registries, states, callWS, callService, floors).
srv/assets/ — generated plan SVGs and icons.js (node demo/gen_icons.mjs,
needs the repo's devDependencies). The card bundle is copied from dist/:
npm run bundle:sync (копия стенда не коммитится, #255).
serve.mjs — playwright launcher (route interception, no web server).
smoke_*.mjs — feature smoke tests; run with a Chromium installed via
PLAYWRIGHT_BROWSERS_PATH=<dir> npx playwright install chromium-headless-shell.
Note for sandboxed sessions: /tmp does not survive; this directory is the
persistent home of the harness (docs/DEVELOPMENT.md has the LD_LIBRARY_PATH recipe).
Codex
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