doxa-maps/library
Doxa Maps 07eb74c33c Move four identical bodies into the library
From the fleet census: 620 function bodies indexed across 29 plugin trees,
16 identical in two or more. These are the four cheapest — none closes over
anything beyond its own parameters, so each is a file move plus an import
rather than a new dependency to thread.

hostElement resolves the custom element a component is mounted inside, one
hop out through the shadow root. It was identical in three plugins, and it
is the piece worth sharing for a reason other than line count: every plugin
ships through defineCustomElement, a composite nests two shadow roots, and
code that forgets the hop operates on the wrong node while looking correct.
A document-level query for a node inside a shadow root returns null on a
working build, which reads as a broken feature rather than a wrong query.
Three copies were three chances to write that.

findScrollportAncestor walks up to the nearest ancestor that actually
scrolls, crossing shadow boundaries on the way — parentElement stops at a
root, so a plugin in a custom element would otherwise find no scrollport and
conclude the page does not scroll.

findNodeInTree and buildFlatLegendMatchExpr join useLegendMapBridge, which
already holds four functions from the same seam. They sit at module level
rather than inside the factory because they close over nothing: a pure
function hidden in a closure can only be reached by constructing the whole
bridge.

Call sites keep their old names through a one-line local binding, so no
call changed and the diff is the declaration plus an import.

Rebuild-and-compare, all five affected bundles, before -> after:
  regions-dashboard   1,098,469 -> 1,098,479   +10
  country-posters     1,484,053 -> 1,484,028   -25
  doxa-research-map   1,354,051 -> 1,354,061   +10
  dashboard-plus-grid   915,660 ->   915,644   -16
  big-picture           366,907 ->   366,719  -188
  net -209, and country-posters gains 25 bytes against the 1.5 MB ceiling.
Every behaviour-bearing token counted, not set-compared, and unchanged in
all three map bundles: regions-fill, peoplePraying, engagementStatus,
adoptionStatus, overflowY, scrollHeight, getRootNode, _flat_filter, religion.

Owners cleared their own files first: regions for regions-list.vue, upg100
for countries-map.vue. check:selection-kinds, check:legend-matches-source,
check:legend-data-contract, check:packet-variants, check:no-dead-library and
check:no-cross-plugin-imports all pass.
2026-09-29 09:19:04 +00:00
..
api The people-group list is a universal prop: the same maps can show any project's list 2026-09-26 05:16:02 +00:00
charts/whiteboard Delete 7 unreachable library components, and gate the thing a census cannot see 2026-09-29 01:38:07 +00:00
colors library/ keeps the reason and drops the speaker: no comment quotes or cites the Driver 2026-09-29 05:26:25 +00:00
components Pan the map when a popup would open half outside it 2026-09-29 09:18:56 +00:00
composables Move four identical bodies into the library 2026-09-29 09:19:04 +00:00
constants The poster credited Mapbox for tiles OpenFreeMap had served 2026-09-29 00:06:52 +00:00
dashboards Write down the contract the four dashboard panels already share 2026-09-29 01:38:08 +00:00
data Map sheets are generated in the browser at the click, by the same generator the Node script runs 2026-09-29 05:26:27 +00:00
elements library/ keeps the reason and drops the speaker: no comment quotes or cites the Driver 2026-09-29 05:26:25 +00:00
i18n Speak the reader's language on the UPG-100 map, its wall and the print HUD 2026-09-29 08:33:43 +00:00
layouts The last library reference drops the speaker, and the baseline shrinks to what is left 2026-09-29 05:26:26 +00:00
lists Speak the reader's language on the UPG-100 map, its wall and the print HUD 2026-09-29 08:33:43 +00:00
maps library/ keeps the reason and drops the speaker: no comment quotes or cites the Driver 2026-09-29 05:26:25 +00:00
packet Serve the packet text at print time instead of bundling all 11 languages 2026-09-29 08:33:44 +00:00
packets library/ keeps the reason and drops the speaker: no comment quotes or cites the Driver 2026-09-29 05:26:25 +00:00
print The Country Posters map's legend Packet export works, and the card deck rolls out behind one switch 2026-09-29 05:26:27 +00:00
scripts check:no-free-identifiers reads internal/ and .mjs, which is where two gates had crashed on load 2026-09-29 09:18:26 +00:00
stores Make the map's clustering picker real: four options, four different maps 2026-09-25 16:16:46 +00:00
styles library/ keeps the reason and drops the speaker: no comment quotes or cites the Driver 2026-09-29 05:26:25 +00:00
utils Move four identical bodies into the library 2026-09-29 09:19:04 +00:00
vendor/cldr library/ keeps the reason and drops the speaker: no comment quotes or cites the Driver 2026-09-29 05:26:25 +00:00
index.js Move internal files out of the repo; fix five dead links; a fuller delegation diagram 2026-09-25 05:14:10 +00:00
ProfileLoader.vue A desktop-only composite blocks on a phone too: the phone rule is a composable its root can call 2026-09-29 09:18:55 +00:00
README.md Complete app-profiles->plugin-designs sweep across comments/docs; build green; layouts kept at root (load-bearing) 2026-09-17 18:18:19 +00:00

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.