# File Dropzone (Notchset): prompt.md (v1.0.0)

- id: `file-dropzone` · version 1.0.0 · component · pro (Pro)
- category: Inputs
- build: Base UI (one set of files; its dependencies follow the build)
- install (this build): `npx shadcn@latest add @beautiful-ui-pro/file-dropzone`
- npm dependencies: none
- registry dependencies: utils, https://beautiful-ui.dev/r/notchset-foundation.json
- docs: https://beautiful-ui.dev/components/file-dropzone
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

A dropzone with crop-mark corners that pull in while a file is over it, paper sheets that lift and fan, drop, paste or choose, and upload rows that open in: uploading, indexing, ready, failed with resume, too large.

## Build it
- Stack: React 19 (`ref` is a plain prop), TypeScript, Tailwind CSS v4 utilities, a shadcn-initialised project with the `@/*` alias.
- Packages: none beyond React.
- Files: `components/ui/notchset/file-dropzone.tsx`; shared code: `lib/beautiful-ui/notchset/calendar.tsx`, `lib/beautiful-ui/notchset/instrument.tsx`, `lib/beautiful-ui/notchset/root.ts`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `notchset-foundation`.
- Builds: one set of files for both, but its dependencies come in Base UI and Radix builds. Install the one that matches the project (see Install): a free item's bare URL installs the Base UI build of it and its dependencies.
- Exports to keep: `FileDropzone`, `FileDropzoneList`, `FileDropzoneItem`, `formatBytes`, and every exported type.
- CSS: the install adds the notchset foundation (tokens, keyframes, motion levels) to your global stylesheet once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Tokens: retheme with the `--notchset-*` custom properties (`--notchset-check`, `--notchset-control-edge`, `--notchset-draw-from`, `--notchset-ease-bloom`, `--notchset-ease-travel`, `--notchset-fade`, `--notchset-focus-color`, `--notchset-focus-inset`, `--notchset-life-from`, `--notchset-life-ms`, `--notchset-node-blink`, `--notchset-node-bloom`, `--notchset-node-delay`, `--notchset-plate-color`, `--notchset-rise-from`, `--notchset-rule`, `--notchset-scroll`, `--notchset-signal`, `--notchset-sweep-to`). Never add Tailwind colour classes inside the component.

```tsx
import { FileDropzone, FileDropzoneItem, FileDropzoneList } from "@/components/ui/notchset/file-dropzone";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `FileDropzone` | `file-dropzone` | The zone. |
| `FileDropzoneList` | `file-dropzone-list` | The rows. |
| `FileDropzoneItem` | `file-dropzone-item` | One file. |

Style a part with `[data-slot="<slot>"]` selectors or its `className`; keep the attributes when editing.

## Sound
- Keep every `data-slot` and `data-sound` attribute: the sound layer reads them.
- Installing this item adds no audio. Nothing plays until the app mounts `SoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/notchset-sound.json`, import from `@/components/ui/notchset/sound-provider`); `useSound()` gives `muted` and `setMuted` for a mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/notchset/file-dropzone.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when
- file upload, dropzone, drag and drop, attachments, knowledge base upload, import files, Notchset
- Uploading files that take a while to process, with per-file status

### Not when
- One small avatar: use a plain file input

## Mistakes
- dragleave fires on children: the zone only clears when the pointer truly leaves

## Usage

```tsx
"use client";

import * as React from "react";
import { FileDropzone, FileDropzoneItem, FileDropzoneList } from "@/components/ui/notchset/file-dropzone";

type Upload = { id: string; name: string; size: number; status: "uploading" | "ready" };

export function DocsUpload() {
  const [files, setFiles] = React.useState<Upload[]>([]);
  return (
    <div className="grid gap-3">
      <FileDropzone
        title="DROP DOCS"
        onFiles={(list) => setFiles((f) => [...f, ...list.map((file) => ({ id: crypto.randomUUID(), name: file.name, size: file.size, status: "uploading" as const }))])}
      />
      <FileDropzoneList>
        {files.map((f) => (
          <FileDropzoneItem key={f.id} name={f.name} size={f.size} status={f.status} onRemove={() => setFiles((all) => all.filter((x) => x.id !== f.id))} />
        ))}
      </FileDropzoneList>
    </div>
  );
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `FileDropzone onFiles` | `(files: File[]) => void` |  | Dropped, pasted or chosen files. |
| `accept / multiple / disabled` | `string / boolean` |  | Passed to the file input. |
| `title / overTitle / description / hint` | `ReactNode` |  | The zone's copy. |
| `FileDropzoneItem name / size / status` | `string / bytes / FileStatus` |  | uploading, indexing, ready, failed, too-large. |
| `progress / chunks / error` | `number / number / string` |  | The status line's values. |
| `onRetry / onRemove` | `() => void` |  | RESUME on failure; × folds the row away, then calls this. |

Full docs: https://beautiful-ui.dev/components/file-dropzone

## Customising
- Colours: the component reads your shadcn tokens (`--background`, `--foreground`, `--border` …), refined by the `--notchset-*` tokens. The signal colour is `--notchset-signal` (it falls back to `--destructive`). Set tokens on `:root`, or on any container to retheme one area.
- Dark mode follows the `.dark` class on an ancestor (the shadcn and next-themes convention).
- Update later by re-running the install with `--overwrite` (review the diff if you edited it). Changelog: https://beautiful-ui.dev/r/changelog.json

## Keyboard

| Keys | Action |
|---|---|
| Enter / Space | Choose files |
| ⌘V / Ctrl V | Paste files |
| Tab | Rows' RESUME and remove |

## Performance

- No timers inside: you drive status; CSS transitions only.

## Responsive

- Fills its container; names truncate.

## Motion inventory

| Interaction | What moves |
|---|---|
| Drag over | Corners pull 10px in (320ms pop); the top sheet lifts 8px and the others fan ±6° (360ms) |
| Upload | The row's 2px bar settles to each update (900ms); update at most once a second |
| Rows | Open from 0 to 56px (300ms) and fold away when removed |

## Accessibility contract (preserve when editing)
- The zone is a button: Enter or Space opens the picker; paste works when it has focus
- Rows are a list; each status line is announced as it changes; remove buttons name the file

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/file-dropzone
```

Pro item: needs the `@beautiful-ui-pro` registry in `components.json` and `BEAUTIFUL_UI_TOKEN` in `.env.local` (https://beautiful-ui.dev/account). Setup: https://beautiful-ui.dev/docs/pro. Your components.json `style` picks the build: radix-*, new-york and default get Radix, base-* gets Base UI.

## Credits
- Built on shadcn/ui (https://ui.shadcn.com)

The notchset foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://beautiful-ui.dev/r/notchset-foundation.json.