# Button

显示按钮或看起来像按钮的组件

页面: https://sui.draco.dev/zh-CN/docs/components/button

### 示例: button-demo

```tsx
import { Button } from "@workspace/ui/components/button";
import { ArrowUpIcon } from "lucide-react";

export default function ButtonDemo() {
  return (
    <div className="flex flex-wrap items-center gap-2">
      <Button variant="outline">Button</Button>
      <Button variant="outline" size="icon" aria-label="Submit">
        <ArrowUpIcon />
      </Button>
    </div>
  );
}
```

## 安装

```bash
bunx --bun shadcn@latest add @sui/button
```

通过 shadcn CLI 安装组件源码。按照[安装指南](/zh-CN/docs/installation)配置 registry、加载样式并选择导入别名。

## 使用方法

```tsx
import { Button } from "@workspace/ui/components/button"
```

```tsx
<Button variant="outline">Button</Button>
```

## 鼠标指针

Tailwind v4 将按钮的默认鼠标指针[从 `cursor: pointer` 改为 `cursor: default`](https://tailwindcss.com/docs/upgrade-guide#buttons-use-the-default-cursor)。

如果您想保留 `cursor: pointer` 行为，请将以下代码添加到 CSS 文件中：

也可在配置 shadcn/ui 项目时使用 `npx shadcn@latest init --pointer` 启用该行为。

```css showLineNumbers title="globals.css"
@layer base {
  button:not(:disabled),
  [role="button"]:not(:disabled) {
    cursor: pointer;
  }
}
```

## 尺寸

使用 `size` 属性更改按钮的大小。

### 示例: button-size

```tsx
import { Button } from "@workspace/ui/components/button";
import { ArrowUpRightIcon } from "lucide-react";

export default function ButtonSize() {
  return (
    <div className="flex flex-col items-start gap-8 sm:flex-row">
      <div className="flex items-start gap-2">
        <Button size="xs" variant="outline">
          Extra Small
        </Button>
        <Button size="icon-xs" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
      <div className="flex items-start gap-2">
        <Button size="sm" variant="outline">
          Small
        </Button>
        <Button size="icon-sm" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
      <div className="flex items-start gap-2">
        <Button variant="outline">Default</Button>
        <Button size="icon" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
      <div className="flex items-start gap-2">
        <Button variant="outline" size="lg">
          Large
        </Button>
        <Button size="icon-lg" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
    </div>
  );
}
```

## 默认样式

### 示例: button-default

```tsx
import { Button } from "@workspace/ui/components/button";

export default function ButtonDefault() {
  return <Button>Button</Button>;
}
```

## 描边

### 示例: button-outline

```tsx
import { Button } from "@workspace/ui/components/button";

export default function ButtonOutline() {
  return <Button variant="outline">Outline</Button>;
}
```

## 次级样式

### 示例: button-secondary

```tsx
import { Button } from "@workspace/ui/components/button";

export default function ButtonSecondary() {
  return <Button variant="secondary">Secondary</Button>;
}
```

## 透明

### 示例: button-ghost

```tsx
import { Button } from "@workspace/ui/components/button";

export default function ButtonGhost() {
  return <Button variant="ghost">Ghost</Button>;
}
```

## 危险操作

### 示例: button-destructive

```tsx
import { Button } from "@workspace/ui/components/button";

export default function ButtonDestructive() {
  return <Button variant="destructive">Destructive</Button>;
}
```

## 链接

### 示例: button-link

```tsx
import { Button } from "@workspace/ui/components/button";

export default function ButtonLink() {
  return <Button variant="link">Link</Button>;
}
```

## 图标

### 示例: button-icon

```tsx
import { Button } from "@workspace/ui/components/button";
import { CircleFadingArrowUpIcon } from "lucide-react";

export default function ButtonIcon() {
  return (
    <Button variant="outline" size="icon">
      <CircleFadingArrowUpIcon />
    </Button>
  );
}
```

## 带图标

请记住将 `data-icon="inline-start"` 或 `data-icon="inline-end"` 属性添加到图标以获得正确的间距。

### 示例: button-with-icon

```tsx
import { Button } from "@workspace/ui/components/button";
import { GitBranchIcon, GitForkIcon } from "lucide-react";

export default function ButtonWithIcon() {
  return (
    <div className="flex gap-2">
      <Button variant="outline">
        <GitBranchIcon data-icon="inline-start" /> New Branch
      </Button>
      <Button variant="outline">
        Fork
        <GitForkIcon data-icon="inline-end" />
      </Button>
    </div>
  );
}
```

## 圆角

使用 `rounded-full` 类使按钮变圆。

### 示例: button-rounded

```tsx
import { Button } from "@workspace/ui/components/button";
import { ArrowUpIcon } from "lucide-react";

export default function ButtonRounded() {
  return (
    <div className="flex gap-2">
      <Button className="rounded-full">Get Started</Button>
      <Button variant="outline" className="rounded-lg">
        Soft corners
      </Button>
      <Button
        variant="outline"
        size="icon"
        className="rounded-full"
        aria-label="Submit"
      >
        <ArrowUpIcon />
      </Button>
    </div>
  );
}
```

## 加载状态

在按钮内渲染 `<Loader size="sm" />` 组件以显示加载状态。请记住将 `data-icon="inline-start"` 或 `data-icon="inline-end"` 属性添加到Loader以获得正确的间距。

### 示例: button-loading

```tsx
"use client";

import { Button } from "@workspace/ui/components/button";
import { Loader } from "@workspace/ui/components/loader";
import { useEffect, useRef, useState } from "react";
import type { ExampleProps } from "../types";

export default function ButtonLoading({ locale }: ExampleProps) {
  const zh = locale === "zh-CN";
  const stateLabels = zh
    ? {
        generating: "正在生成",
        generate: "生成",
        downloading: "正在下载",
        download: "下载",
        done: "演示完成，可以再次点击",
        idle: "点击按钮模拟加载状态",
      }
    : {
        generating: "Generating",
        generate: "Generate",
        downloading: "Downloading",
        download: "Download",
        done: "Demo complete. Try it again.",
        idle: "Click a button to simulate loading.",
      };
  const [status, setStatus] = useState<"idle" | "pending" | "done">("idle");
  const timer = useRef<ReturnType<typeof setTimeout> | undefined>(undefined);
  const pending = status === "pending";

  useEffect(() => () => clearTimeout(timer.current), []);

  function startDemo() {
    clearTimeout(timer.current);
    setStatus("pending");
    // Replace this delay with your application's async operation.
    timer.current = setTimeout(() => setStatus("done"), 1200);
  }

  return (
    <div className="flex flex-col gap-3">
      <div className="flex flex-wrap gap-2">
        <Button variant="outline" disabled={pending} onClick={startDemo}>
          {pending && <Loader size="sm" data-icon="inline-start" />}
          {pending ? stateLabels.generating : stateLabels.generate}
        </Button>
        <Button variant="secondary" disabled={pending} onClick={startDemo}>
          {pending ? stateLabels.downloading : stateLabels.download}
          {pending && <Loader size="sm" data-icon="inline-end" />}
        </Button>
      </div>
      <p role="status" className="text-muted-foreground text-sm">
        {status === "done" ? stateLabels.done : stateLabels.idle}
      </p>
    </div>
  );
}
```

## 按钮组

要创建按钮组，请使用 `ButtonGroup` 组件。有关更多详细信息，请参阅[按钮组](/zh-CN/docs/components/button-group) 文档。

### 示例: button-group-demo

```tsx
"use client";

import { Button } from "@workspace/ui/components/button";
import { ButtonGroup } from "@workspace/ui/components/button-group";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuGroup,
  DropdownMenuItem,
  DropdownMenuRadioGroup,
  DropdownMenuRadioItem,
  DropdownMenuSeparator,
  DropdownMenuSub,
  DropdownMenuSubContent,
  DropdownMenuSubTrigger,
  DropdownMenuTrigger,
} from "@workspace/ui/components/dropdown-menu";
import {
  ArchiveIcon,
  ArrowLeftIcon,
  CalendarPlusIcon,
  ClockIcon,
  ListFilterIcon,
  MailCheckIcon,
  MoreHorizontalIcon,
  TagIcon,
  Trash2Icon,
} from "lucide-react";
import * as React from "react";

export default function ButtonGroupDemo() {
  const [label, setLabel] = React.useState("personal");

  return (
    <ButtonGroup>
      <ButtonGroup className="hidden sm:flex">
        <Button variant="outline" size="icon" aria-label="Go Back">
          <ArrowLeftIcon />
        </Button>
      </ButtonGroup>
      <ButtonGroup>
        <Button variant="outline">Archive</Button>
        <Button variant="outline">Report</Button>
      </ButtonGroup>
      <ButtonGroup>
        <Button variant="outline">Snooze</Button>
        <DropdownMenu>
          <DropdownMenuTrigger
            render={
              <Button variant="outline" size="icon" aria-label="More Options" />
            }
          >
            <MoreHorizontalIcon />
          </DropdownMenuTrigger>
          <DropdownMenuContent align="end" className="w-40">
            <DropdownMenuGroup>
              <DropdownMenuItem>
                <MailCheckIcon />
                Mark as Read
              </DropdownMenuItem>
              <DropdownMenuItem>
                <ArchiveIcon />
                Archive
              </DropdownMenuItem>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuGroup>
              <DropdownMenuItem>
                <ClockIcon />
                Snooze
              </DropdownMenuItem>
              <DropdownMenuItem>
                <CalendarPlusIcon />
                Add to Calendar
              </DropdownMenuItem>
              <DropdownMenuItem>
                <ListFilterIcon />
                Add to List
              </DropdownMenuItem>
              <DropdownMenuSub>
                <DropdownMenuSubTrigger>
                  <TagIcon />
                  Label As...
                </DropdownMenuSubTrigger>
                <DropdownMenuSubContent>
                  <DropdownMenuRadioGroup
                    value={label}
                    onValueChange={setLabel}
                  >
                    <DropdownMenuRadioItem value="personal">
                      Personal
                    </DropdownMenuRadioItem>
                    <DropdownMenuRadioItem value="work">
                      Work
                    </DropdownMenuRadioItem>
                    <DropdownMenuRadioItem value="other">
                      Other
                    </DropdownMenuRadioItem>
                  </DropdownMenuRadioGroup>
                </DropdownMenuSubContent>
              </DropdownMenuSub>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuGroup>
              <DropdownMenuItem variant="destructive">
                <Trash2Icon />
                Trash
              </DropdownMenuItem>
            </DropdownMenuGroup>
          </DropdownMenuContent>
        </DropdownMenu>
      </ButtonGroup>
    </ButtonGroup>
  );
}
```

## 作为链接

使用 `buttonVariants` 辅助函数为链接应用按钮样式。

**请勿将 `<Button render={<a />} nativeButton={false} />` 用于链接。** Base UI `Button` 组件始终应用 `role="button"`，它会覆盖 `<a>` 元素上的语义链接角色。请改用带有普通 `<a>` 标签的 `buttonVariants`。

### 示例: button-render

```tsx
import { buttonVariants } from "@workspace/ui/components/button";

export default function ButtonRender() {
  return (
    <a
      href="/docs"
      className={buttonVariants({ variant: "secondary", size: "sm" })}
    >
      Login
    </a>
  );
}
```

## 从右到左

关于 shadcn/ui 的 RTL 支持，参阅 [RTL 配置指南](https://ui.shadcn.com/docs/rtl)。

### 示例: button-rtl

```tsx
"use client";

import { Button } from "@workspace/ui/components/button";
import { Loader } from "@workspace/ui/components/loader";
import { ArrowRightIcon, PlusIcon } from "lucide-react";
import { type Translations, useTranslation } from "./support";

const translations: Translations = {
  en: {
    dir: "ltr",
    values: {
      button: "Button",
      submit: "Submit",
      delete: "Delete",
      loading: "Loading",
    },
  },
  ar: {
    dir: "rtl",
    values: {
      button: "زر",
      submit: "إرسال",
      delete: "حذف",
      loading: "جاري التحميل",
    },
  },
  he: {
    dir: "rtl",
    values: {
      button: "כפתור",
      submit: "שלח",
      delete: "מחק",
      loading: "טוען",
    },
  },
};

export function ButtonRtl() {
  const { dir, t } = useTranslation(translations, "ar");

  return (
    <div className="flex flex-wrap items-center gap-2" dir={dir}>
      <Button variant="outline">{t.button}</Button>
      <Button variant="destructive">{t.delete}</Button>
      <Button variant="outline">
        {t.submit}{" "}
        <ArrowRightIcon className="rtl:rotate-180" data-icon="inline-end" />
      </Button>
      <Button variant="outline" size="icon" aria-label="Add">
        <PlusIcon />
      </Button>
      <Button variant="secondary" disabled>
        <Loader size="sm" data-icon="inline-start" /> {t.loading}
      </Button>
    </div>
  );
}

export default ButtonRtl;
```

## API 参考

### Button
`Button` 组件是 `button` 元素的包装器，添加了各种样式和功能

| 属性 |类型 |默认 |
| --------- | ------------------------------------------------------------------------------------------------ | ----------- |
| `variant` | `"default" \| "outline" \| "ghost" \| "destructive" \| "secondary" \| "link"` | `"default"` |
| `size` | `"default" \| "xs" \| "sm" \| "lg" \| "icon" \| "icon-xs" \| "icon-sm" \| "icon-lg"` | `"default"` |

底层交互行为与底层属性请参阅 [Base UI API](https://base-ui.com/react/components/button#api-reference)。