Motion Scale — logic2b/ui

Scale in

Zooms in from 95% on mount, then lifts on hover.

"use client"

import * as React from "react"

import { Button } from "@/components/ui/button"
import { MotionScale } from "@/components/ui/motion-scale"

export default function MotionScaleDemo() {
  const [run, setRun] = React.useState(0)

  return (
    <div className="flex w-full flex-col items-center gap-6">
      <Button variant="outline" size="sm" onClick={() => setRun((n) => n + 1)}>
        Replay
      </Button>
      <MotionScale
        key={run}
        hover="lift"
        className="w-full max-w-sm rounded-lg border bg-card p-6 text-card-foreground"
      >
        <p className="text-sm font-medium">Scale in</p>
        <p className="mt-1 text-sm text-muted-foreground">
          Zooms in from 95% on mount, then lifts on hover.
        </p>
      </MotionScale>
    </div>
  )
}

Installation

npx logic2b@next add motion-scale

Working with an AI assistant? Copy this prompt into Claude Code, Cursor or Copilot — it carries the install steps, a no-CLI fallback and a verification checklist.

Add the "motion-scale" item from the logic2b ui registry (https://ui.logic2b.com) to this project. Follow every step and verify at the end.

## Steps

1. If the project has no `components.json` yet, set up logic2b ui first:

   ```bash
   npx logic2b@next init
   ```

2. Install the item (the CLI resolves registry dependencies automatically):

   ```bash
   npx logic2b@next add motion-scale
   ```

3. Install any npm dependencies the command prints.

## If the CLI is not available

Do it manually from the registry payload:

1. Fetch https://ui.logic2b.com/r/motion-scale.json.
2. Write every entry in `files[]` to its mapped project path (see below).
3. Repeat (recursively) for each name in `registryDependencies`.
4. Install every package listed in `dependencies` across those payloads.

## Registry reference

- Index of every item: https://ui.logic2b.com/r/index.json
- Item payload (full source): https://ui.logic2b.com/r/<name>.json
- Usage examples per item: https://ui.logic2b.com/r/demos/index.json → https://ui.logic2b.com/r/demos/<demo>.json
- Docs index for agents: https://ui.logic2b.com/llms.txt (full docs: https://ui.logic2b.com/llms-full.txt)
- Every docs page is Markdown when you append `.md` to its URL.

Registry file paths map to project paths like this:
- `ui/*` → `@/components/ui/*`
- `blocks/<name>/*` → `@/components/*`
- `charts/*` → `@/components/charts/*`
- `hooks/*` → `@/hooks/*`
- `lib/utils.ts` → `@/lib/utils.ts`
- `theme.css` → next to the project's Tailwind entry stylesheet

## Conventions (do not break these)

- Tailwind CSS v4 (CSS-first config; no tailwind.config.js needed) and React 19.
- All colors go through semantic tokens (`bg-primary`, `text-muted-foreground`,
  `border-border`, …). Never hardcode hex/oklch values in components.
- Dark mode is class-based: toggle `.dark` on `<html>`.
- Icons come from lucide-react.

## Verify before finishing

1. The dev server starts and the app renders without console errors.
2. TypeScript compiles (`tsc --noEmit` or the framework's check).
3. Components use the theme: a `<Button>` shows the primary token color,
   and toggling `.dark` on `<html>` switches the palette.

Copy into ui/motion-scale.tsx:

"use client"

import { Motion, type MotionProps } from "@/components/ui/motion"

export type MotionScaleProps = Omit<MotionProps, "preset">

/** Zoom a mounting element in from 95%. Preconfigured `<Motion preset="scale">`. */
function MotionScale(props: MotionScaleProps) {
  return <Motion preset="scale" {...props} />
}

export { MotionScale }

Usage

import { MotionScale } from "@/components/ui/motion-scale"

<MotionScale hover="lift">
  <Card>…</Card>
</MotionScale>

MotionScale is <Motion preset="scale"> — see Motion for the shared duration, delay, hover and asChild props, exit recipes and reduced-motion behavior.

Live playground

Edit the component props and inspect the exact JSX before copying it. The preview loads only when this section enters the viewport.

Generated JSX

<MotionScale
  duration={500}
  delay={0}
>Scale reveal</MotionScale>

API reference

Generated from the public TypeScript exports in src/ui/motion-scale.tsx.

View JSON

MotionScaleProps

Type

type MotionScaleProps = Omit<MotionProps, "preset">

MotionScale

Component

Zoom a mounting element in from 95%. Preconfigured `<Motion preset="scale">`.

Props: MotionScaleProps

Accessibility contract

Machine-readable behavior and consumer responsibilities for motion-scale.

View JSON

Support: Composition contract
Pattern: scale animation; Motion for React

Built-in semantics

Preserves child semantics and accepts reduced-motion behavior from the motion foundation.

Consumer responsibilities

Keep interactive hit targets stable and offer an instant reduced-motion alternative.

Known limitations

• Large or rapid scale changes can be uncomfortable unless reduced-motion preferences are honored.