Closed, the folder sat mid-drawer under the one short Posters section with
empty space below, so it read as a caption with nothing under it and was easy
to miss on a phone. Open, its plugins show like any section's rows; a reader
can still collapse it. check:posterverse-shelf asserts the open default, and
its self-test plants a closed folder.
A preset page loads only poster-sections.js, so a preset of a poster type
registered by another plugin's script (upg100-list) could only say No
posters. The generator now gives no presets to a type whose file is not on
the tree, and check:poster-sections fails on any such preset: 9 presets
remain (7 regions, all regions, configure).
The tree generator writes a page per preset but never deletes one, so the
dropped presets' pages (the 10 upg100 ones and countries-other) are removed,
and a new arm holds the built preset pages to exactly the presets.
The pilot's country data now places every country in a real region, so the
country type has 7 regions. gen:poster-sections-presets regenerated the list
(19 presets); check:poster-sections had failed on the stale countries-other
preset and passes now. Bundle, tree and SRI rebuilt.
The measure-once design missed a host restyled from sized to height:auto after mount WITH in-flow content: it
stayed sized at its content height instead of getting the floor back, as the old probe did.
- After mount, follow() re-probes only when the reading says the host may have changed kind: floor on and the
host shorter than the floor (styled after mount, or capped), or floor off and the host changed size (it may now
follow its content). The re-probe saves every scrolled descendant (through shadow roots) and puts it back
before the frame paints, so no reader state is lost. A window-height change on a content-sized host still
writes nothing.
- A host capped below the floor (max-height) is latched by the probe that finds it, until it reaches the floor
again, so it is never re-probed in a loop. The 1 s post-flip window is gone.
- check:host-floor gains arm H (sized → auto with 420 px of content: the floor returns, at most one flip, the
scrolled child keeps its scrollTop) and counts re-probes in D/E. Poisons: the old per-resize probe, no capped
latch, no re-check of a sized host, no scroll restore.
- library/elements/hostFloor.js holds the decision ProfileLoader uses: probeOnce() at mount, follow() on every
host resize (reads only; at most one flip of the floor).
- A host CAPPED below the floor (max-height) follows its content up to the cap. It is found at mount, or, if
the cap arrives later, by the host shrinking right after a flip; either way it is latched as content-sized
and never flipped again, so it cannot loop. The post-flip check runs before the collapse rule, so a capped
host with empty content is latched rather than flipped back and forth.
- check:host-floor (gates:pre; self-test in gates:post): a stub DOM with a scrolled child that clamps when the
loader collapses. After mount, host resizes never write the loader nor move the child; a sized host fills;
late sizing flips once; a max-height cap (at mount: 0 flips; after mount: at most one flip and one revert)
never loops; a collapsed host gets the floor back; an inline host is left alone. Poisons: the old per-resize
probe, and a missing latch.
Merge studio's poster type registry + pins-in-state + preview-flag pilot into
the region data fix. Built-output conflicts resolved by taking the pilot's
public/ then rebuilding the three bundles that embed country-posters.json
(country-posters, poster-design, regions-dashboard) on the merged source, so
they carry both the registry changes and the corrected regions. Tree + SRI
regenerated. check-poster-section's dropped 'other' scope and the 18 region-only
records are preserved through the merge.
A regression from the host-sized floor: ProfileLoader re-measured its host on EVERY host resize by briefly setting
the loader's min-height to 0 and then to a huge value. On a content-sized host (100svh tall) a window-height
change, as a phone's URL bar makes, resized the host and ran that probe; collapsing and expanding the loader
clamped a scrolling child's scrollTop, and the embedded UPG-100 app, whose view follows its column's scroll,
flipped from Map back to its first view.
- The two-value probe now runs ONCE, at mount, before the profile renders.
- After that the loader only READS sizes and flips one CSS value: a block host shorter than the floor (only a
host sized from outside can be) turns the floor off; a block host that collapsed to nothing turns it back on;
a window-height change on a content-sized host changes nothing.
gen:poster-sections-presets writes poster-sections.instances.json from each
type's scopes() (all regions, then one preset per region titled by the type's
own section title in the site's English, then configure), the same list
check:poster-sections holds the file to. Today it reproduces the 20 presets
exactly, in the data's region order; when the data's regions change, running
it is the whole fix.
