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Responsive Master/Detail (vocab/search/fields) — Implementation Plan

For agentic workers: REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (- [ ]) syntax for tracking.

Goal: Bring the Vocabularies, Search, and Fields master/detail screens to the responsive behavior the Objects screen already has — preserving wide side-by-side, collapsing to single-column + a slide-in Drawer (vocab/search) or a stack (fields) on narrow — via one shared DetailDrawer.

Architecture: Generalize the objects-specific drawer into a reusable components/detail-drawer.tsx and retrofit Objects onto it (Task 1). Make vocabularies + search responsive with useMediaQuery("(min-width: 1024px)") + useMatch + the shared drawer (Tasks 2-3). Make fields a pure-CSS responsive stack (Task 4) + full gate. Behavior-preserving on wide; only narrow changes.

Tech Stack: React 19 + TS + pnpm, React Router 7, Base UI Drawer, Tailwind v4, Vitest 4 (jsdom) + RTL + MSW.

Conventions: pnpm; no any/eslint-disable/@ts-ignore; no codename; double-quote+semicolon; token classes only. Breakpoint 1024px (useMediaQuery("(min-width: 1024px)") / Tailwind lg:), matching Objects. Run a single test pass per task.

Spec: docs/superpowers/specs/2026-06-09-responsive-master-detail-design.md

Key facts:

  • lib/use-media-query.ts: useMediaQuery(query): boolean (SSR-safe matchMedia).
  • objects/object-detail-drawer.tsx (to be generalized + deleted) is: <Drawer open onOpenChange={(n)=>{if(!n)onClose()}} swipeDirection="right"><DrawerContent aria-label={t("objects.detailTitle")}><div className="flex justify-end border-b p-2"><DrawerClose aria-label={t("actions.closeDetail")} render={<Button variant="ghost" size="icon-sm" />}><X className="size-4" aria-hidden="true" /></DrawerClose></div><div className="flex-1 overflow-auto"><Outlet/></div></DrawerContent></Drawer>. Drawer/DrawerClose/DrawerContent from @/components/ui/drawer.
  • objects/objects-page.tsx currently lazy()-loads ObjectDetailDrawer + wraps in <Suspense fallback={null}>; narrow branch renders {open && <Suspense><ObjectDetailDrawer open={open} onClose={closeDetail} /></Suspense>}. The WIDE pane has its own close <Button … aria-label={t("actions.closeDetail")}><X/></Button> — keep it (X import stays).
  • Existing i18n (no new keys): objects.detailTitle ("Object detail"), vocab.terms ("Terms"), actions.closeDetail ("Close detail").
  • vocabularies-page.tsx: <div flex h-full flex-col><PageTitle>…</PageTitle><div grid grid-cols-[20rem_1fr]><div border-r><VocabularyList/></div><div><Outlet/></div></div></div>. Routes: /vocabularies (index SelectVocabularyPrompt) + /vocabularies/:id (VocabularyTerms).
  • search-page.tsx: same shape, grid-cols-[24rem_1fr], <SearchPanel/>, routes /search (index SelectSearchPrompt) + /search/:id (ObjectDetail).
  • fields-page.tsx: useState-driven; <div grid grid-cols-[20rem_1fr]><div border-r><FieldList selectedKey onSelect/></div><div><FieldForm key editing onDone/></div></div>. No routes.
  • Test harness: objects-page.test.tsx has a setViewport(wide: boolean) helper that overrides window.matchMedia to match (min-width: 1024px) only when wide; default test setup is narrow (matches:false); afterEach(() => vi.restoreAllMocks()). Narrow-drawer assertion pattern: deep-link to :id, then within(document.body).findByRole(...) for the portaled drawer + assert the /close detail/i button. No vocabularies-page/search-page/fields-page test files exist yet.

Task 1: Shared DetailDrawer + retrofit Objects

Files: Create web/src/components/detail-drawer.tsx, web/src/components/detail-drawer.test.tsx; Modify web/src/objects/objects-page.tsx; Delete web/src/objects/object-detail-drawer.tsx.

  • Step 1: Create web/src/components/detail-drawer.tsx:
import type { ReactNode } from "react";
import { useTranslation } from "react-i18next";
import { X } from "lucide-react";

import { Drawer, DrawerClose, DrawerContent } from "@/components/ui/drawer";
import { Button } from "@/components/ui/button";

/** A right-sliding Base UI Drawer for a master/detail "detail" on narrow viewports.
 *  Provides the close affordance + an accessible dialog name; the caller supplies the content. */
export function DetailDrawer({
  open,
  onClose,
  ariaLabel,
  children,
}: {
  open: boolean;
  onClose: () => void;
  ariaLabel: string;
  children: ReactNode;
}) {
  const { t } = useTranslation();

  return (
    <Drawer
      open={open}
      onOpenChange={(next) => {
        if (!next) onClose();
      }}
      swipeDirection="right"
    >
      <DrawerContent aria-label={ariaLabel}>
        <div className="flex justify-end border-b p-2">
          <DrawerClose
            aria-label={t("actions.closeDetail")}
            render={<Button variant="ghost" size="icon-sm" />}
          >
            <X className="size-4" aria-hidden="true" />
          </DrawerClose>
        </div>
        <div className="flex-1 overflow-auto">{children}</div>
      </DrawerContent>
    </Drawer>
  );
}
  • Step 2: Create web/src/components/detail-drawer.test.tsx (write + run):
import { expect, test, vi } from "vitest";
import { screen, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";

import { renderApp } from "../test/render";
import { DetailDrawer } from "./detail-drawer";

test("renders children in a named drawer and closes via the close button", async () => {
  const onClose = vi.fn();
  renderApp(
    <DetailDrawer open onClose={onClose} ariaLabel="Object detail">
      <p>detail body</p>
    </DetailDrawer>,
  );

  const body = within(document.body);
  expect(await body.findByText("detail body")).toBeInTheDocument();
  await userEvent.click(body.getByRole("button", { name: /close detail/i }));
  expect(onClose).toHaveBeenCalled();
});

Run: cd web && pnpm vitest run src/components/detail-drawer.test.tsx. (If Base UI requires open to mount the portal, it's set; the content is portaled to document.body.)

  • Step 3: Retrofit web/src/objects/objects-page.tsx. Remove import { lazy, Suspense } from "react"; and the const ObjectDetailDrawer = lazy(...) block; add import { DetailDrawer } from "../components/detail-drawer";. Replace the narrow return block's drawer with:
  return (
    <div className="h-full">
      {table}
      {open && (
        <DetailDrawer open={open} onClose={closeDetail} ariaLabel={t("objects.detailTitle")}>
          <Outlet />
        </DetailDrawer>
      )}
    </div>
  );

(Keep everything else — the wide grid branch with its own close <Button><X/></Button> is unchanged, so the X and Button imports stay.)

  • Step 4: Delete the old drawer:
cd /Users/olsson/Laboratory/biggus-dickus
git rm web/src/objects/object-detail-drawer.tsx

(Confirm no other importer: git grep -n object-detail-drawer web/src → only objects-page, now changed.)

  • Step 5: Verify (vitest ONCE) + typecheck + lint:
cd web && pnpm vitest run src/components/detail-drawer.test.tsx src/objects/objects-page.test.tsx && pnpm typecheck && pnpm lint

Expected: green. The objects-page narrow + wide tests must pass unchanged (the shared DetailDrawer renders the same drawer + /close detail/i button).

  • Step 6: Commit
cd /Users/olsson/Laboratory/biggus-dickus
git add web/src/components/detail-drawer.tsx web/src/components/detail-drawer.test.tsx web/src/objects/objects-page.tsx
git rm -q web/src/objects/object-detail-drawer.tsx 2>/dev/null; git add -A web/src/objects
git commit -m "refactor(web): shared DetailDrawer; objects-page uses it (#58)"

Task 2: Responsive Vocabularies page

Files: Modify web/src/vocab/vocabularies-page.tsx; Create web/src/vocab/vocabularies-page.test.tsx.

  • Step 1: Rewrite web/src/vocab/vocabularies-page.tsx:
import { Outlet, useMatch, useNavigate } from "react-router-dom";
import { useTranslation } from "react-i18next";

import { VocabularyList } from "./vocabulary-list";
import { DetailDrawer } from "../components/detail-drawer";
import { useMediaQuery } from "../lib/use-media-query";
import { useDocumentTitle } from "../lib/use-document-title";
import { useBreadcrumb } from "../shell/use-breadcrumb";
import { PageTitle } from "@/components/ui/page-title";

export function VocabulariesPage() {
  const { t } = useTranslation();
  const navigate = useNavigate();
  const detailMatch = useMatch("/vocabularies/:id");
  const open = Boolean(detailMatch);
  const isWide = useMediaQuery("(min-width: 1024px)");

  useDocumentTitle(t("nav.vocabularies"));
  useBreadcrumb([{ label: t("nav.vocabularies") }]);

  const close = () => navigate("/vocabularies");

  return (
    <div className="flex h-full flex-col">
      <PageTitle className="px-4 pt-4 pb-2">{t("nav.vocabularies")}</PageTitle>
      {isWide ? (
        <div className="grid flex-1 grid-cols-[20rem_1fr] overflow-hidden">
          <div className="overflow-hidden border-r">
            <VocabularyList />
          </div>
          <div className="overflow-hidden">
            <Outlet />
          </div>
        </div>
      ) : (
        <div className="flex-1 overflow-hidden">
          <VocabularyList />
        </div>
      )}
      {!isWide && open && (
        <DetailDrawer open={open} onClose={close} ariaLabel={t("vocab.terms")}>
          <Outlet />
        </DetailDrawer>
      )}
    </div>
  );
}

(The <Outlet/> is rendered in exactly one place: the wide grid, OR the narrow drawer when open. On narrow with no :id, neither renders the Outlet — just the list.)

  • Step 2: Create web/src/vocab/vocabularies-page.test.tsx. Read web/src/test/fixtures.ts + web/src/test/handlers.ts for the vocabularies list + terms handlers and a real vocabulary id. Mirror the objects-page.test.tsx setViewport harness:
import { afterEach, expect, test, vi } from "vitest";
import { screen, within } from "@testing-library/react";
import { Route, Routes } from "react-router-dom";

import { renderApp } from "../test/render";
import { VocabulariesPage } from "./vocabularies-page";
import { VocabularyTerms } from "./vocabulary-terms";
import { SelectVocabularyPrompt } from "./select-vocabulary-prompt";

function setViewport(wide: boolean) {
  Object.defineProperty(window, "matchMedia", {
    value: (query: string): MediaQueryList =>
      ({
        matches: wide && query === "(min-width: 1024px)",
        media: query,
        onchange: null,
        addEventListener: () => {},
        removeEventListener: () => {},
        addListener: () => {},
        removeListener: () => {},
        dispatchEvent: () => false,
      }) as MediaQueryList,
    writable: true,
  });
}

afterEach(() => vi.restoreAllMocks());

function tree() {
  return (
    <Routes>
      <Route path="/vocabularies" element={<VocabulariesPage />}>
        <Route index element={<SelectVocabularyPrompt />} />
        <Route path=":id" element={<VocabularyTerms />} />
      </Route>
    </Routes>
  );
}

test("narrow: a selected vocabulary's detail renders in a portaled drawer", async () => {
  setViewport(false);
  renderApp(tree(), { route: `/vocabularies/<VOCAB_ID>` });

  const body = within(document.body);
  expect(
    await body.findByRole("button", { name: /close detail/i }, { timeout: 5000 }),
  ).toBeInTheDocument();
});

test("wide: a selected vocabulary renders inline (no detail drawer)", async () => {
  setViewport(true);
  renderApp(tree(), { route: `/vocabularies/<VOCAB_ID>` });

  // the list (master) is present and there is NO close-detail button (inline pane, not a drawer)
  expect(await screen.findByRole("button", { name: /close detail/i }).catch(() => null)).toBeNull();
});

Replace <VOCAB_ID> with a real id from fixtures.ts. The narrow test asserts the drawer is present (the /close detail/i button only exists inside DetailDrawer). For the wide test, prefer a positive assertion that the master + inline detail both render (e.g. await screen.findByText(<a stable vocab list item or the vocab.terms caption>)) AND screen.queryByRole("button", { name: /close detail/i }) is null. Adjust the queries to the fixtures' actual rendered text; the load-bearing checks are: narrow → close-detail button present (drawer); wide → close-detail button absent (inline). Reuse the default MSW handlers (don't add new ones unless a handler is missing).

  • Step 3: Verify (vitest ONCE) + typecheck + lint:
cd web && pnpm vitest run src/vocab/vocabularies-page.test.tsx src/vocab && pnpm typecheck && pnpm lint

Green. (Existing vocab tests stay green.)

  • Step 4: Commit
cd /Users/olsson/Laboratory/biggus-dickus
git add web/src/vocab/vocabularies-page.tsx web/src/vocab/vocabularies-page.test.tsx
git commit -m "feat(web): responsive Vocabularies master/detail (drawer on narrow) (#58)"

Task 3: Responsive Search page

Files: Modify web/src/search/search-page.tsx; Create web/src/search/search-page.test.tsx.

  • Step 1: Rewrite web/src/search/search-page.tsx (same pattern as vocab; 24rem master, SearchPanel, route "/search/:id", close "/search", drawer ariaLabel t("objects.detailTitle") since the search detail is an object):
import { Outlet, useMatch, useNavigate } from "react-router-dom";
import { useTranslation } from "react-i18next";

import { SearchPanel } from "./search-panel";
import { DetailDrawer } from "../components/detail-drawer";
import { useMediaQuery } from "../lib/use-media-query";
import { useDocumentTitle } from "../lib/use-document-title";
import { useBreadcrumb } from "../shell/use-breadcrumb";
import { PageTitle } from "@/components/ui/page-title";

export function SearchPage() {
  const { t } = useTranslation();
  const navigate = useNavigate();
  const detailMatch = useMatch("/search/:id");
  const open = Boolean(detailMatch);
  const isWide = useMediaQuery("(min-width: 1024px)");

  useDocumentTitle(t("nav.search"));
  useBreadcrumb([{ label: t("nav.search") }]);

  const close = () => navigate("/search");

  return (
    <div className="flex h-full flex-col">
      <PageTitle className="px-4 pt-4 pb-2">{t("nav.search")}</PageTitle>
      {isWide ? (
        <div className="grid flex-1 grid-cols-[24rem_1fr] overflow-hidden">
          <div className="overflow-hidden border-r">
            <SearchPanel />
          </div>
          <div className="overflow-hidden">
            <Outlet />
          </div>
        </div>
      ) : (
        <div className="flex-1 overflow-hidden">
          <SearchPanel />
        </div>
      )}
      {!isWide && open && (
        <DetailDrawer open={open} onClose={close} ariaLabel={t("objects.detailTitle")}>
          <Outlet />
        </DetailDrawer>
      )}
    </div>
  );
}

  • Step 2: Create web/src/search/search-page.test.tsx mirroring the vocab test (the setViewport helper, the same narrow→close-detail-present / wide→absent discriminator). Tree: <Route path="/search" element={<SearchPage/>}><Route index element={<SelectSearchPrompt/>}/><Route path=":id" element={<ObjectDetail/>}/></Route>. Deep-link /search/<OBJECT_ID> (use a real object id from fixtures.ts; the search detail loads the object via the same /api/admin/objects/{id} handler the objects tests use). Narrow → within(document.body).findByRole("button", { name: /close detail/i }) present; wide → absent + the object detail renders inline. Reuse the default MSW handlers.

  • Step 3: Verify (vitest ONCE) + typecheck + lint:

cd web && pnpm vitest run src/search/search-page.test.tsx src/search && pnpm typecheck && pnpm lint

Green.

  • Step 4: Commit
cd /Users/olsson/Laboratory/biggus-dickus
git add web/src/search/search-page.tsx web/src/search/search-page.test.tsx
git commit -m "feat(web): responsive Search master/detail (drawer on narrow) (#58)"

Task 4: Responsive Fields page (CSS stack) + full gate

Files: Modify web/src/fields/fields-page.tsx; Create web/src/fields/fields-page.test.tsx.

  • Step 1: Make fields-page.tsx a responsive stack. Change the grid container + the list pane's border so it stacks on narrow and is side-by-side on lg:
      <div className="grid flex-1 grid-cols-1 overflow-auto lg:grid-cols-[20rem_1fr] lg:overflow-hidden">
        <div className="overflow-hidden border-b lg:border-r lg:border-b-0">
          <FieldList selectedKey={selected?.key ?? null} onSelect={setSelected} />
        </div>
        <div className="overflow-hidden">
          <FieldForm
            key={selected?.key ?? "create"}
            editing={selected}
            onDone={() => setSelected(null)}
          />
        </div>
      </div>

(On narrow: single column — list then form, the grid container scrolls (overflow-auto), the list gets a bottom divider. On lg: the two-column grid with the list's right border, clipped overflow as before. If the stacked panes still clip awkwardly in a manual smoke, adjust the narrow pane overflow — keep lg: behavior identical to today.)

  • Step 2: Create web/src/fields/fields-page.test.tsx:
import { expect, test } from "vitest";
import { screen } from "@testing-library/react";

import { renderApp } from "../test/render";
import { FieldsPage } from "./fields-page";

test("renders the field list and the field form, in a responsive grid", async () => {
  const { container } = renderApp(<FieldsPage />);

  // both panes present (master + detail)
  expect(await screen.findByText(/fields/i)).toBeInTheDocument();
  // the responsive grid: single-column by default, two-column at lg
  const grid = container.querySelector("div.grid");
  expect(grid?.className).toContain("grid-cols-1");
  expect(grid?.className).toContain("lg:grid-cols-[20rem_1fr]");
});

Run: cd web && pnpm vitest run src/fields/fields-page.test.tsx. (Adjust the findByText to a stable rendered string — the fields.title PageTitle, the field-list, or the field-form's "Key" label. jsdom can't measure layout, so the class assertion is the responsive guard.)

  • Step 3: FULL FRONTEND GATE (run tests EXACTLY ONCE):
cd web && pnpm typecheck && pnpm lint && pnpm test && pnpm build && pnpm check:size && pnpm check:colors

All green. Report total test count, largest chunk (gz), the check:colors line. (check:size should be unchanged-or-smaller — the objects drawer's separate lazy chunk folds into base-ui.)

  • Step 4: Codename + status:
cd /Users/olsson/Laboratory/biggus-dickus
git grep -in 'biggus\|dickus' -- web/src; echo "codename-exit=$?"
git status --short

Expected: no matches (codename-exit=1).

  • Step 5: Manual smoke (recommended). pnpm dev, narrow the window (<1024px): the sidebar is an icon rail; Vocabularies/Search show the list/panel full-width and selecting an item slides in the detail Drawer (close returns to the index); Fields stacks the list above the form (both scrollable). Widen (≥1024): all three return to side-by-side; Objects unchanged.

  • Step 6: Commit

cd /Users/olsson/Laboratory/biggus-dickus
git add web/src/fields/fields-page.tsx web/src/fields/fields-page.test.tsx
git commit -m "feat(web): responsive Fields page (stacks on narrow) (#58)"

Self-Review (completed)

Spec coverage: AC1 DetailDrawer + objects retrofit + delete old (T1); AC2 vocab + search responsive drawer (T2-T3); AC3 fields responsive grid (T4 S1); AC4 new tests for drawer/vocab/search/fields + existing green (T1-T4 tests); AC5 gate/codename/no-new-keys (T4 S3-S4). ✓

Placeholder scan: full code for DetailDrawer + all three pages; tests give the exact setViewport harness + the narrow/wide discriminator; the <VOCAB_ID>/<OBJECT_ID> and findByText adjustments are explicit "read fixtures" instructions with a stated load-bearing assertion, not vague TODOs. ✓

Type/consistency: DetailDrawer({ open, onClose, ariaLabel, children }) (T1) is consumed with those exact props in objects/vocab/search (T1-T3); useMediaQuery("(min-width: 1024px)") + useMatch("/<x>/:id") + navigate("/<x>") consistent across vocab/search; ariaLabels use existing keys (objects.detailTitle, vocab.terms). ✓

Notes

  • No new dependency; no new i18n keys (objects.detailTitle, vocab.terms, actions.closeDetail all exist). components/ui/* untouched (drawer/button wrappers unchanged; only a new app-level components/detail-drawer.tsx).
  • The <Outlet/> per page is rendered in exactly one place per isWide branch — no double-mount.
  • Fields stays useState-driven + stacked (no routing change, no "New field" trigger needed); the resizable splitter is deferred.
  • Breakpoint 1024px is consistent with the existing Objects screen.
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