# Segmented Control
URL: /lynx/components/segmented-control
Source: https://github.com/daangn/seed-design/blob/dev/docs/content/lynx/components/segmented-control.mdx

여러 옵션 중 하나를 선택하여 관련 콘텐츠를 즉시 필터링하거나 전환할 때 사용하는 컴포넌트입니다.

Lynx Engine 최소 버전: 3.6

사용 가능 버전: @seed-design/lynx-react@0.6.0, @seed-design/lynx-css@0.10.0

## Preview

```tsx
import "./styles";

import { root } from "@lynx-js/react";
import { useSeedClassName } from "@seed-design/lynx-react";
import { SegmentedControl, SegmentedControlItem } from "@/components/ui/segmented-control";

function Root() {
  const seedClassName = useSeedClassName({ colorMode: "system" });

  return (
    <page className={seedClassName}>
      <view className="segmented-control-example">
        <SegmentedControl
          className="segmented-control-example__control"
          defaultValue="hot"
          accessibility-label="정렬 기준"
        >
          <SegmentedControlItem value="hot">인기순</SegmentedControlItem>
          <SegmentedControlItem value="new">최신순</SegmentedControlItem>
        </SegmentedControl>
      </view>
    </page>
  );
}

root.render(<Root />);
```

## Installation

- npm: npx @seed-design/cli add ui:segmented-control
- pnpm: pnpm dlx @seed-design/cli add ui:segmented-control
- yarn: yarn dlx @seed-design/cli add ui:segmented-control
- bun: bun x @seed-design/cli add ui:segmented-control

## Props

### `SegmentedControl`

<Callout type="info">
  `value`와 `defaultValue` 중 하나를 제공해야 선택된 항목과 Indicator를 표시할 수 있습니다.
</Callout>

### `SegmentedControlItem`

## Usage

```tsx
import {
  SegmentedControl,
  SegmentedControlItem,
} from "@/components/ui/segmented-control";

export function App() {
  return (
    <SegmentedControl defaultValue="hot" accessibility-label="정렬 기준">
      <SegmentedControlItem value="hot">인기순</SegmentedControlItem>
      <SegmentedControlItem value="new">최신순</SegmentedControlItem>
    </SegmentedControl>
  );
}
```

Registry의 `SegmentedControl`은 선택 Indicator를 자동으로 추가합니다.

## Examples

### Disabled

`SegmentedControl`의 `disabled`는 전체 항목을 비활성화합니다. 각 `SegmentedControlItem`도 따로 비활성화할 수 있습니다.

```tsx
import "./styles";

import { root } from "@lynx-js/react";
import { useSeedClassName } from "@seed-design/lynx-react";
import { SegmentedControl, SegmentedControlItem } from "@/components/ui/segmented-control";

function Root() {
  const seedClassName = useSeedClassName({ colorMode: "system" });

  return (
    <page className={seedClassName}>
      <view className="segmented-control-example">
        <SegmentedControl defaultValue="hot" disabled accessibility-label="전체 비활성화">
          <SegmentedControlItem value="hot">인기순</SegmentedControlItem>
          <SegmentedControlItem value="new">최신순</SegmentedControlItem>
        </SegmentedControl>
        <SegmentedControl defaultValue="hot" accessibility-label="일부 비활성화">
          <SegmentedControlItem value="hot">인기순</SegmentedControlItem>
          <SegmentedControlItem value="new" disabled>
            최신순
          </SegmentedControlItem>
        </SegmentedControl>
      </view>
    </page>
  );
}

root.render(<Root />);
```

### Long Label

```tsx
import "./styles";

import { root } from "@lynx-js/react";
import { useSeedClassName } from "@seed-design/lynx-react";
import { SegmentedControl, SegmentedControlItem } from "@/components/ui/segmented-control";

function Root() {
  const seedClassName = useSeedClassName({ colorMode: "system" });

  return (
    <page className={seedClassName}>
      <view className="segmented-control-example">
        <SegmentedControl defaultValue="price" accessibility-label="정렬 기준">
          <SegmentedControlItem value="price">가격 높은 순</SegmentedControlItem>
          <SegmentedControlItem value="discount">할인율 높은 순</SegmentedControlItem>
          <SegmentedControlItem value="popular">인기 많은 순</SegmentedControlItem>
        </SegmentedControl>
      </view>
    </page>
  );
}

root.render(<Root />);
```

### Fixed Width

`SegmentedControl`의 `style`이나 `className`으로 너비를 지정할 수 있습니다.

```tsx
import "./styles";

import { root } from "@lynx-js/react";
import { useSeedClassName } from "@seed-design/lynx-react";
import { SegmentedControl, SegmentedControlItem } from "@/components/ui/segmented-control";

function Root() {
  const seedClassName = useSeedClassName({ colorMode: "system" });

  return (
    <page className={seedClassName}>
      <view className="segmented-control-example">
        <SegmentedControl
          className="segmented-control-example__fixed"
          defaultValue="oneway"
          accessibility-label="Trip Type"
        >
          <SegmentedControlItem value="oneway">One Way Trip</SegmentedControlItem>
          <SegmentedControlItem value="round">Round Trip</SegmentedControlItem>
          <SegmentedControlItem value="multi">Multi-City Journey</SegmentedControlItem>
        </SegmentedControl>
      </view>
    </page>
  );
}

root.render(<Root />);
```

### Listening to Value Changes

`onValueChange`로 선택 값 변경을 감지할 수 있습니다. Controlled 모드에서는 `value`와 함께 사용합니다.

```tsx
import "./styles";

import { root, useState } from "@lynx-js/react";
import { useSeedClassName } from "@seed-design/lynx-react";
import { SegmentedControl, SegmentedControlItem } from "@/components/ui/segmented-control";

function Root() {
  const seedClassName = useSeedClassName({ colorMode: "system" });
  const [value, setValue] = useState("hot");

  function handleValueChange(nextValue: string) {
    "background only";
    setValue(nextValue);
  }

  return (
    <page className={seedClassName}>
      <view className="segmented-control-example">
        <SegmentedControl
          value={value}
          onValueChange={handleValueChange}
          accessibility-label="정렬 기준"
        >
          <SegmentedControlItem value="hot">인기순</SegmentedControlItem>
          <SegmentedControlItem value="new">최신순</SegmentedControlItem>
        </SegmentedControl>
        <text className="segmented-control-example__status">선택값: {value}</text>
      </view>
    </page>
  );
}

root.render(<Root />);
```

## 웹 버전과의 차이

| 항목        | React Web                  | Lynx                                  |
| --------- | -------------------------- | ------------------------------------- |
| 렌더링 요소    | HTML `label`, `input`      | 네이티브 `view`, `text`                   |
| 선택 이벤트    | input change               | `bindtap`, 공개 상태 이벤트는 `onValueChange` |
| 접근성       | ARIA `radiogroup`, `radio` | Lynx `accessibility-*` 속성             |
| Indicator | CSS grid와 custom property  | Grid layout과 custom property          |

## Lynx 미지원 기능

- HTML form 제출을 위한 `ItemHiddenInput`, `name`, `form`, `inputProps`
- 키보드 focus와 focus-visible 상호작용
- Registry `SegmentedControlItem`의 `notification` prop

Lynx에는 대응하는 Notification Badge 컴포넌트가 없어 `notification` prop을 제공하지 않습니다. 항목 레이블은 문자열이나 숫자로 전달합니다.