React half of the session-projection client base: the renderer contract gains
an open-key projections face on SessionMaybeProvideInfo (cellOf(key), distinct
from the static hooks roster), web-react mints projectionHook (per-bundle cache;
per-cell uSES binding via the shared observableHook cache; unresolved keys read
undefined through the absent source so hook order stays constant), standardKit
delivers kit.useProjection, and the runtime merges UseProjection into
SessionStandardProps/SessionMaybeStandardProps (overloads mirror useSession).
3 jsdom specs (kit delivery + live re-render, selector over undefined, faceless
bundle = all absent); existing direct-prop-feed specs gain the one-line stub the
new required seat mandates.
Object layer of the session-projection RFC client base: ProjectionCellSpec/
ProjectionCell/ProjectionCellSet with the single seq-watermark rule (live and
window-replace events share one filter; baseline reset re-seeds value+watermark
unless a newer commit applied; absent key = capability absent), Session
dispatch at appendLive/installWindow (projections block read structurally,
TODO(gui) switch to the interface package), SessionsService.registerProjectionCell
roster (live scopes now + future scopes at mint; disposer sweeps every session),
and the provideInfo projections face (key-addressed bare cell sources).
15 object-layer specs: watermark no-rollback, late-baseline seq rule,
capability absence, schema-failure degrade, duplicate-key throw, resync e2e.
Hand fixes for the findings --fix cannot touch, mirroring the fixes
already applied on the fe-docs feature branch (same file, same shape)
so its eventual rebase resolves cleanly:
- restore the return the no-confusing-void-expression autofix ate in
useAbsentSnapshot (typed S | undefined; hook call kept for hook-order
stability, undefined returned explicitly);
- re-type DOM queries the no-unnecessary-type-assertion autofix broke:
getByRole<HTMLButtonElement>(...) generics instead of the removed
as-casts (the eslint program and the client tsconfig aggregate
disagree about these casts; the generic form satisfies both);
- justified eslint-disable for the deliberate legacy paths: keyCode 229
IME-composition detection, execCommand clipboard fallbacks, lib.dom
clipboard optionality, and the any-typed Reflect.get/this probes in
test fakes;
- drop the dead react/no-danger directive (eslint-plugin-react is not
loaded, so the rule never applied) keeping its shiki rationale;
- delete the tautological 'Z' comparison and the renameTarget null
check already implied by renameBlocked;
- css-module non-null assertions replaced by type widening
(Button className, TAG_CLASS Record) per the established pattern;
- misc: max-len comment wraps, void generic drop in the deferred test
helper, unused type imports, floating selectWorkspace promises voided,
member-delimiter newlines in inline type literals.
unbound-method flags destructuring a method-style member (method
signatures are bivariant and exempt from the this-context check).
These contract members are all plain callbacks — declare them as
property-style function types so consumers can destructure them
without a false this-binding hazard. Type-level only.
Mechanical --fix output over the newly linted .tsx files (indent,
arrow-parens, comma-dangle, member-delimiter-style, unnecessary type
assertions), plus the three generic-arrow test hooks converted to
function declarations up front: the comma-dangle fixer strips the
<T,> disambiguation comma and turns them into parse errors otherwise.
The question composer card is capped against the viewport and scrolls its
option list. `.options` is a flex column whose children defaulted to
`flex-shrink: 1`, so a short seat shrank the rows before overflowing the
scroll container: a row collapsed to its 42px minimum while `.optionCopy`
kept the taller height its wrapped copy needs, and `align-items: center`
then painted that copy outside the row's border box — over the question
title above and the next row below. Measured 6.5px of spill at 900x440 on
the shipped client, 10px at 380px tall, with `.options` reporting
scrollHeight === clientHeight and therefore offering no scrollbar.
`.option` and `.custom` now declare `flex-shrink: 0`, so the shortfall
reaches the scroll container that already owns `overflow-y: auto` — the
behavior the cap was designed for. Only rows whose copy wraps could
reproduce this, which is why the recorded scenario now asks a question
with long option descriptions; the web e2e asserts at three squeezed seat
heights that every row's children stay inside its border box, guarded
against holding vacuously by requiring a wrapped row and a scrolling list.
