# 展开更多

- 页面: https://jiguang132.com/zh/resources/mantine/docs/spoiler
- 资源: Mantine Core (https://jiguang132.com/zh/resources/mantine.md)
- 全部指南: https://jiguang132.com/zh/resources/mantine/docs.md

Mantine Core 的独立组件，请不要替换为 JGuang UI/Base UI 的同名 API。

## 安装

```bash
npm install @mantine/core@9.7.1 @mantine/hooks@9.7.1
```

入口引入 `@mantine/core/styles.css`，并在根组件使用 `MantineProvider`；通过 `forceColorScheme` 同步深浅色主题。

## 使用与验证

在左侧选择组件，在预览中操作它的状态；使用“查看代码”检查真实源码。安装后执行类型检查和构建，再验证键盘焦点、手机布局与深浅色主题。

## 来源

https://github.com/mantinedev/mantine/tree/f0e2bc6d28b0f0b8aaefb5b859937bf77f539df7
MIT 许可证；不包括付费内容。下方提供上游英文参考内容，中文使用指南已适配；上游详细参考暂保留英文。

---


## 版本与兼容性

固定的 Mantine Core 9.7.1 要求 React 和 React DOM 满足 `^19.2.0`，并配套 `@mantine/hooks@9.7.1`。此条件来自实际 npm 包的 peerDependencies。React 18 或其他不兼容版本不能强行安装；先向项目负责人说明升级影响并确认方案，不使用 --force/--legacy-peer-deps 掩盖冲突。入口的原生 Provider 开启 `theme.respectReducedMotion`，并用 `forceColorScheme` 控制深浅色。

## 适用场景

展开超过收起最大高度的内容。

## 本地示例使用的原生参数

以下参数由本地、经过类型检查的 JSX 示例提取，按所属组件区分。不是全部属性清单；完整签名和继承关系见下方固定源码参考。

| 组件参数 | 说明 |
| --- | --- |
| `Spoiler.maxHeight` | 收起内容的高度上限。 |
| `Spoiler.showLabel` | 展开操作文字。 |
| `Spoiler.hideLabel` | 收起操作文字。 |

## 交互与状态检查

当前场景：默认。切换支持的禁用、错误或只读场景后检查真实行为；无此原生状态的组件不会被强行添加统一属性。验证键盘焦点和退出方式，修改值后按原生回调签名连接业务状态。

## 业务接入边界

示例内容和状态仅保存在本地，不提供服务端持久化、授权或数据请求。静态展示组件不应被当作已完成的业务流程。

## 宿主配置

先安装固定版本 @mantine/core 和 @mantine/hooks，在入口引入 @mantine/core/styles.css，并使用 MantineProvider。示例的 theme 和 variant 是 JGuang 编写的宿主参数，不是所有原生组件都接受的统一 API；通过 forceColorScheme 同步应用主题。源码面板中的原生实现仅供阅读，使用 npm 导出，不要单独复制内部实现。此批只覆盖 Core，不包括日期、图表和表单扩展包。上游详细说明保留英文，不宣称全文中文化。


## 可运行用法

以下代码使用资源原生 API；不是把其他设计系统的同名组件替换进来。

```tsx
import { useState } from 'react';
import * as M from '@mantine/core';
import '@mantine/core/styles.css';


function ComponentPreview({ variant = 'Default' }: { variant?: string }) {

return <M.Spoiler maxHeight={60} showLabel="Show more" hideLabel="Hide">{Array.from({ length: 6 }, (_, i) => <M.Text key={i}>Design resources for your next project.</M.Text>)}</M.Spoiler>;
}
export default function Example({ variant = 'Default', theme = 'light' }: { variant?: string; theme?: 'light' | 'dark' }) {
return <M.MantineProvider forceColorScheme={theme} theme={{ respectReducedMotion: true }}><ComponentPreview variant={variant} /></M.MantineProvider>;
}

```


## 可用状态与示例

默认

示例遵循 Mantine 原生 API。支持多状态的输入组件可将示例中的 variant 改为 Disabled、Invalid 或 Read only；这些只是示例标签，不是新增的组件属性。改造时保留组件要求的数据、受控值、store 和复合子组件结构。


## Usage

Use `Spoiler` to hide a long section of content.
Set the `maxHeight` prop to control the point at which content will be hidden under the spoiler and the show/hide control appears.
If the content height is less than `maxHeight`, the spoiler will just render children.

`hideLabel` and `showLabel` props are required – they are used as the spoiler toggle button label in the corresponding state.



## Control expanded state

To control the expanded state, use `expanded` and `onExpandedChange` props. Note that the
`expanded` prop does not have any effect on spoiler visuals if the content height
is less than the given `maxHeight`.

```tsx
import { useState } from 'react';
import { Spoiler } from '@mantine/core';

function Demo() {
  const [expanded, setExpanded] = useState(false);

  return (
    <Spoiler
      showLabel="Show more"
      hideLabel="Hide details"
      expanded={expanded}
      onExpandedChange={setExpanded}
    >
      {/* Spoiler content */}
    </Spoiler>
  );
}
```

## Subscribe to expanded state changes

Use `onExpandedChange` to subscribe to expanded state changes:

```tsx
import { Spoiler } from '@mantine/core';

function Demo() {
  return (
    <Spoiler
      showLabel="Show more"
      hideLabel="Hide details"
      onExpandedChange={(expanded) => console.log(expanded)}
    >
      {/* Spoiler content */}
    </Spoiler>
  );
}
```

## Transition duration

Control the transition duration by setting the `transitionDuration` prop (transition-duration CSS property in ms).
To disable animations, set `transitionDuration={0}`:



## Get control ref

```tsx
import { useRef } from 'react';
import { Spoiler } from '@mantine/core';

function Demo() {
  const spoilerControlRef = useRef<HTMLButtonElement>(null);
  return (
    <Spoiler
      controlRef={spoilerControlRef}
      hideLabel="Hide"
      showLabel="Show"
    />
  );
}
```

## Accessibility

The Spoiler component implements proper ARIA attributes for screen reader support:

- Toggle button has `aria-expanded` indicating the expanded/collapsed state
- Content region has `role="region"` and is associated with the button via `aria-controls`
- Keyboard support: Space or Enter key toggles the spoiler when the button is focused

### Best practices for label text

Provide descriptive labels for `showLabel` and `hideLabel` props that clearly indicate the action:

```tsx
// Good - clear, descriptive labels
<Spoiler showLabel="Show full article" hideLabel="Hide article" />
<Spoiler showLabel="Expand details" hideLabel="Collapse details" />

// Avoid vague labels
<Spoiler showLabel="More" hideLabel="Less" />
<Spoiler showLabel="..." hideLabel="..." />
```

### Custom accessibility labels

If your button labels don't clearly describe the action for screen reader users, use the `showAriaLabel` and `hideAriaLabel` props to provide custom ARIA labels:

```tsx
import { Spoiler } from '@mantine/core';

function Demo() {
  return (
    <Spoiler
      showLabel="👁️"
      hideLabel="👁️"
      showAriaLabel="Show discussion comments"
      hideAriaLabel="Hide discussion comments"
    >
      {/* Comments content */}
    </Spoiler>
  );
}
```


## 源码参数参考

以下实现签名和类型从本地固定版本源码生成。保留可选属性、原生继承类型、联合分支和 never 限制；不会将其他设计系统的 API 混入。forwardRef 实现中的 ref 属于 React 引用，不是新增业务属性。此区域是原始类型参考，不是上游说明的全文翻译。


```ts
Spoiler(_props)
```



```ts
export type SpoilerStylesNames = 'root' | 'control' | 'content';

export type SpoilerCssVariables = {
  root: '--spoiler-transition-duration';
};

export interface SpoilerProps
  extends BoxProps, StylesApiProps<SpoilerFactory>, ElementProps<'div'> {
  /** Maximum height of visible content in px. When content exceeds this height, the toggle control appears @default 100 */
  maxHeight?: number;

  /** Content displayed in the toggle button when content is collapsed (to expand) */
  showLabel: React.ReactNode;

  /** Content displayed in the toggle button when content is expanded (to collapse) */
  hideLabel: React.ReactNode;

  /** Ref of the toggle button element */
  controlRef?: React.Ref<HTMLButtonElement>;

  /** Initial expanded state in uncontrolled mode. If `true`, content starts expanded. If `false`, content starts collapsed @default false */
  defaultExpanded?: boolean;

  /** Controlled expanded state value */
  expanded?: boolean;

  /** Called when expanded state changes (when spoiler visibility is toggled by the user) */
  onExpandedChange?: (expanded: boolean) => void;

  /** Spoiler reveal transition duration in ms. Set to 0 to disable animation @default 200 */
  transitionDuration?: number;

  /** Accessible label for the toggle button when collapsed. If not set, `showLabel` is used */
  showAriaLabel?: string;

  /** Accessible label for the toggle button when expanded. If not set, `hideLabel` is used */
  hideAriaLabel?: string;
}

export type SpoilerFactory = Factory<{
  props: SpoilerProps;
  ref: HTMLDivElement;
  stylesNames: SpoilerStylesNames;
  vars: SpoilerCssVariables;
}>;

export type Mod = Record<string, any> | string;

export type BoxMod = Mod | Mod[] | BoxMod[];

export interface BoxProps extends MantineStyleProps {
  /** Class added to the root element, if applicable */
  className?: string | undefined;

  /** Inline style added to root component element, can subscribe to theme defined on MantineProvider */
  style?: MantineStyleProp;

  /** CSS variables defined on root component element */
  __vars?: CssVarsProp;

  /** `size` property passed down the HTML element */
  __size?: string;

  /** Breakpoint above which the component is hidden with `display: none` */
  hiddenFrom?: MantineBreakpoint;

  /** Breakpoint below which the component is hidden with `display: none` */
  visibleFrom?: MantineBreakpoint;

  /** Determines whether component should be hidden in light color scheme with `display: none` */
  lightHidden?: boolean;

  /** Determines whether component should be hidden in dark color scheme with `display: none` */
  darkHidden?: boolean;

  /** Element modifiers transformed into `data-` attributes, for example, `{ 'data-size': 'xl' }`, falsy values are removed */
  mod?: BoxMod;
}

export type ElementProps<
  ElementType extends React.ElementType,
  PropsToOmit extends string = never,
> = Omit<React.ComponentProps<ElementType>, 'style' | PropsToOmit>;

export interface CSSProperties extends React.CSSProperties {
  [key: string]: any;
}

type MantineStyle = CSSProperties | ((theme: MantineTheme) => CSSProperties);

export type MantineStyleProp = MantineStyle | MantineStyle[] | MantineStyleProp[] | undefined;

export type CssVariable = `--${string}`;

export type CssVariables<Variable extends string = CssVariable> = Partial<Record<Variable, string>>;

export type CssVars<Variable extends string = CssVariable> =
  | CssVariables<Variable>
  | ((theme: MantineTheme) => CssVariables<Variable>)
  | CssVars<Variable>[];

export type CssVarsProp<Variable extends string = CssVariable> =
  | CssVars<Variable>
  | CssVars<Variable>[];
```


### 原生与外部类型

以下外部类型仍由 React 或资源自身依赖定义，没有手工展开为虚构属性。实际可用类型以安装版本的 TypeScript 检查为准。


```ts
Factory<{
  props: SpoilerProps;
  ref: HTMLDivElement;
  stylesNames: SpoilerStylesNames;
  vars: SpoilerCssVariables;
}>
MantineStyleProps
React.CSSProperties
MantineTheme
Partial<Record<Variable, string>>
Record<Variable, string>
Variable
MantineBreakpoint
Record<string, any>
StylesApiProps<SpoilerFactory>
React.ElementType
Omit<React.ComponentProps<ElementType>, 'style' | PropsToOmit>
React.ComponentProps<ElementType>
ElementType
PropsToOmit
React.ReactNode
React.Ref<HTMLButtonElement>
HTMLButtonElement
HTMLDivElement
```

---

JGuang 全部资源索引: https://jiguang132.com/llms.txt