76 lines
2.3 KiB
Markdown
76 lines
2.3 KiB
Markdown
# OpenSpec Change: enterprise-react-infinite-scroll
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- **Change ID**: enterprise-react-infinite-scroll
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- **Package**: `@suaveplan/react-infinite-scroll`
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- **Category**: react
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- **Target path**: `react/ui/react-infinite-scroll`
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- **Status**: PROPOSED
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- **Date**: 2026-04-24
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- **Reference spec**: `/mnt/s/web/suaveplan/enterprise/react-infinite-scroll.md`
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---
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## Summary
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Deliver `@suaveplan/react-infinite-scroll` on genesis from scratch at enterprise quality. `IntersectionObserver`-based infinite scroll: headless `useInfiniteScroll` hook and batteries-included `InfiniteScroll` component. Genesis replaces `vi.stubGlobal` mocks with real DOM observers (polyfill), adds bidirectional/reverse scroll support, `rootRef` for nested containers, debounce on `onLoadMore`, OTel instrumentation, and Playwright E2E.
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---
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## Current-state audit (genesis)
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Package does not exist on genesis — fresh build.
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---
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## Available workspace deps on genesis
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| Package | Role |
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|---|---|
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| `@suaveplan/error` (`workspace:^`) | `InfiniteScrollError` |
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| `@suaveplan/react-translate` (`workspace:^`) | i18n for end/loading copy |
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| `zod` (`catalog:forms`) | Options schema |
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| `@opentelemetry/api` (`catalog:observability`) | `infinite_scroll.load` span |
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External: `tslib catalog:build`. React 18 peer.
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---
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## Preserved public API surface
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```ts
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InfiniteScroll — sentinel + loading indicator + end message
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useInfiniteScroll — ref callback + isLoading + isEnd state
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// Types
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InfiniteScrollProps, UseInfiniteScrollOptions
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```
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---
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## New additions for genesis
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1. **Real IntersectionObserver** — tests use `intersection-observer` polyfill; no `vi.stubGlobal`.
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2. **Bidirectional** — `direction: 'down' | 'up'` prop for reverse-scroll chat patterns.
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3. **`rootRef`** — supports nested scroll containers.
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4. **`onLoadMore` debounce** — configurable `debounceMs` prevents rapid successive calls.
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5. **OTel `infinite_scroll.load` span** — attribute `infinite_scroll.direction`.
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6. **Stories** — default, reverse-scroll, nested-container, playground.
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---
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## File layout
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```text
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react/ui/react-infinite-scroll/
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package.json
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tsconfig.json
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vitest.config.ts
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src/
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index.ts
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hooks/
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use-infinite-scroll/ (ts + types + md + test + stories + index)
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infinite-scroll/ (tsx + types + md + test + stories + index)
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e2e/
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infinite-scroll.spec.ts
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```
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