<!-- source-hash: 41cddbc1609de359a4385ad11867ade8 -->
Scrolls the page to `window.location.hash` after a dependency resolves, using a `requestAnimationFrame` polling loop to handle lazy-mounted elements like Radix accordion panels or SWR-fetched rows.

## Key Components

| Export | Type | Description |
|---|---|---|
| `useScrollToHash` | Hook | Main hook that drives hash-based scroll behavior |
| `UseScrollToHashOptions` | Interface | Configuration options for the hook |
| `MAX_POLL_FRAMES` | Constant | rAF poll budget (~1s at 60fps) before giving up |

### `UseScrollToHashOptions`

| Property | Type | Default | Description |
|---|---|---|---|
| `headerOffset` | `number` | `0` | Pixels to subtract for sticky headers/chrome |

## Usage Example

```typescript
// Basic — runs on mount for SSR-rendered anchors
useScrollToHash()

// Wait for async data before attempting scroll
const { data } = useSWR('/api/items')
useScrollToHash(data)

// With sticky header compensation
useScrollToHash(data, { headerOffset: 64 })

// Delay until accordion/drawer is fully open
const [isOpen, setIsOpen] = useState(false)
useScrollToHash(isOpen)
```

## Behavior Notes

- **Polling:** Calls `requestAnimationFrame` up to `MAX_POLL_FRAMES` (60) times, giving lazy-mounted DOM nodes ~1 second to appear before aborting.
- **Skipped when** `readyDep` is `null` or `false` — safe to pass unresolved async state directly.
- **Re-runs on:** `hashchange` events (browser back/forward navigation) and the synthetic `navigateSamePageHash` event, in addition to `readyDep` reference changes.
- **Concurrent safety:** Cancels any in-flight rAF poll before starting a new one to prevent double-scroll races.
- **SSR safe:** Guards against `window` being undefined.

## Source

[`use-scroll-to-hash.ts`](https://github.com/flamingo-stack/openframe-oss-lib/blob/main/use-scroll-to-hash.ts)