Arabic text was rendering inside a left-to-right layout: readable glyphs
in the wrong place, which reads as a styling quirk rather than the bug
it is.
TWO DEFECTS IN ONE BLOCK (library/i18n/index.js, createAppI18n):
TARGET — it wrote document.documentElement.dir. An EMBEDDED widget
doing that flips the PARTNER'S WHOLE PAGE: their headings, their nav,
their footer. The existing comment already worried about the host
owning that decision, but guarded only against CLEARING dir, never
against setting it.
TIMING — it ran at createAppI18n() construction, reading
detectLocale(), which sees only the URL and <html lang>. A locale
arriving later through profile-config — the channel a HOST uses —
never reached it. Measured across the previous landing: htmlDir null
on every host-channel run, including leaves whose chrome was fully
Arabic.
Direction now binds on ProfileLoader's own root, driven by
effectiveLocale — the locale actually in force AFTER profile-config, so
it re-evaluates when a host changes the language. This element cannot
tell "I am the page" from "I am a widget", and guessing wrong is exactly
the failure above, so it no longer touches the document at all.
MEASURED on a partner page at a FOREIGN ORIGIN with
profile-config.locale='ar' (same gate, before and after):
before upg-100-mfe plugin root ltr, arabic 1765 FAIL
poster-wall plugin root ltr, arabic 1738 FAIL
after upg-100-mfe plugin root RTL, arabic 1765 pass
poster-wall plugin root RTL, arabic 1738 pass
partner <html>/<body>/<h1> stayed ltr throughout.
Standalone leaves are unchanged and still get <html dir="rtl"> from
?lang=ar — verified, both profiles — because a leaf page DOES own its
document. createAppI18n's document write therefore stays for now;
replacing it needs a page-ownership signal that touches every generated
leaf, which is its own change rather than a rider on this one.
⚠ THE GATE REFUSES TO JUDGE WHAT IT CANNOT SEE, and that guard earned
its place twice before this was measurable. Its first two runs reported
"the element never mounted" — a HARNESS gap, not the product: a partner
embed uses crossorigin="anonymous" (SRI requires it), so the tree must
send Access-Control-Allow-Origin, which `bun run serve` does not. The
gate now proxies the tree through its own CORS-enabled port. Without
that guard those runs would have read as fails-first evidence for a
defect nothing had actually exercised. It also fails if the locale
produced zero Arabic chrome, because direction cannot be assessed on a
page whose language never applied.
|
||
|---|---|---|
| .. | ||
| api | ||
| colors | ||
| components | ||
| composables | ||
| constants | ||
| data | ||
| i18n | ||
| layouts | ||
| maps | ||
| packet | ||
| scripts | ||
| stores | ||
| styles | ||
| utils | ||
| index.js | ||
| ProfileLoader.vue | ||
| README.md | ||
library/ (@map) — the shared map template
The other half of the architecture (see ../plugin-designs/README.md):
every map in plugin-designs/<your-map>/ composes the reusable, parameterized pieces that live here.
Fix something here and every map benefits on the next build; break something here and every map
breaks — read components/WARNING.md before touching shared pieces.
| Folder | What lives there |
|---|---|
ProfileLoader.vue |
The root of every bundle: parses profile-config, loads the profile, provides the stores + config |
components/ |
Shared UI — map, legends, controls, popup (PeopleGroupDetail), tables, charts, hints (README) |
composables/ |
Shared logic — map engine (useMapInstance), provider switch, shadow-DOM styles, theming |
stores/ |
Per-instance Pinia stores (ui / map / data) — provided by ProfileLoader, injected by children |
api/ |
Data-source registry (sources.json) + fetch layer — the JAMstack runtime wiring |
colors/ |
Color sets maps opt into via profile-config.colorSet |
i18n/ |
The shared string catalogs (all maps speak the same languages) |
data/ |
Small shared datasets baked at build time (big served data lives in ../data/) |
constants/ |
Shared constants |
scripts/ |
Maintainer pipelines (posters, research) — not part of any bundle |
The rule of thumb (same as WARNING.md): custom code in your app-profile, reusable code here — and things only move from the first to the second once they've earned it.