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Spoiler · Mantine Core

交互预览
npm install @mantine/core@9.7.1 @mantine/hooks@9.7.1

展开更多

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

安装

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。

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.

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:

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

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:

// 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:

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。

Spoiler(_props)

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。

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