# 输入框

- 页面: https://jiguang132.com/zh/resources/mantine/docs/input
- 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

通过基础输入控件组合附属区域及状态。

## 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 |
| --- | --- |
| `Input.disabled` | 禁用用户输入或操作，不等同于只读。 |
| `Input.readOnly` | 阻止编辑并保留只读交互。 |
| `Input.placeholder` | 输入提示，不能替代标签。 |
| `Input.aria-label` | 原生元素的无障碍名称或状态。 |

## 交互与状态检查

当前场景：默认、禁用、只读。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 }) {
const disabled = variant === "Disabled";
const readOnly = variant === "Read only";
return <M.Input disabled={disabled} readOnly={readOnly} placeholder="Enter text / 输入文字" aria-label="Demo input" />;
}
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、禁用、只读

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。


## Disclaimer

**!important:** In most cases, you should not use `Input` in your application.
`Input` is a base for other inputs and was not designed to be used directly.
Use `Input` to create custom inputs. For other cases, prefer [TextInput](/core/text-input/)
or another component.

```tsx
import { Input, TextInput } from '@mantine/core';

// Incorrect usage, input is not accessible
function Incorrect() {
  return (
    <Input.Wrapper label="Input label">
      <Input />
    </Input.Wrapper>
  );
}

// Use TextInput instead of Input everywhere you want to use Input,
// it is accessible by default and includes Input.Wrapper
function Correct() {
  return (
    <TextInput label="Input label" description="Input description" />
  );
}
```

## Usage

The `Input` component is used as a base for some other inputs ([NativeSelect](/core/native-select/), [TextInput](/core/text-input/), [Textarea](/core/textarea/), etc.).
The purpose of the `Input` is to provide shared styles and features to other inputs.



## Loading state

Set `loading` prop to display a loading indicator. By default, the loader is displayed on the right side of the input.
You can change the position with the `loadingPosition` prop to `'left'` or `'right'`. This is useful for async operations like API calls, searches, or validations:






## Change input element

Input is a [polymorphic component](/guides/polymorphic), the default root element is `input`,
but it can be changed to any other element or component.

Example of using `Input` as `button` and `select`:



## Input.Wrapper component

The `Input.Wrapper` component is used in all other inputs
([TextInput](/core/text-input/), [NativeSelect](/core/native-select/), [Textarea](/core/textarea/), etc.)
under the hood. You _do not need to wrap your inputs with it, as it is already included in all of them_.
Use `Input.Wrapper` only when you want to create custom inputs.



## inputWrapperOrder

`inputWrapperOrder` allows configuring the order of `Input.Wrapper` parts.
It accepts an array of four elements: `label`, `input`, `error` and `description`.
Note that it is not required to include all of them – you can use only those that you need.
Parts that are not included will not be rendered.



## inputContainer

With the `inputContainer` prop, you can enhance inputs that use `Input.Wrapper` under the hood.
For example, you can add a [Tooltip](/core/tooltip/) to the [TextInput](/core/text-input/) when
the input is focused:



## required and withAsterisk props

All components that are based on `Input.Wrapper` support `required` and `withAsterisk` props.
When set to true, both of these props will add a red asterisk to the end of the label.
The only difference is whether the input element will have the `required` attribute. Example with
the [TextInput](/core/text-input/) component:

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

// Will display required asterisk and add `required` attribute to the input element
function RequiredDemo() {
  return <TextInput label="test-label" required />;
}

// Will only display the asterisk, `required` attribute is not added to the input element
function AsteriskDemo() {
  return <TextInput label="test-label" withAsterisk />;
}
```

## error prop

All inputs that use `Input.Wrapper` under the hood support the `error` prop.
When set to `true`, it will add a red border to the input. You can also pass a React node to display
an error message below the input. To only display an error message without a red border, set the `error` prop
to a React node and `withErrorStyles={false}`:



## success prop

All inputs that use `Input.Wrapper` under the hood support the `success` prop.
When set to `true`, it will add a green border to the input. You can also pass a React node to display
a success message below the input. If both `error` and `success` props are set, `error` takes precedence:



## Input.Label, Input.Description and Input.Error components

`Input.Label`, `Input.Error` and `Input.Description` components can be used to create custom
form layouts if the default `Input.Wrapper` layout does not meet your requirements.



## Input.Placeholder component

`Input.Placeholder` component can be used to add a placeholder to `Input` and `InputBase` components that are based on the `button` element
or do not support the placeholder property natively:



## Input.ClearButton component

Use the `Input.ClearButton` component to add a clear button to custom inputs
based on the `Input` component. The `size` of the clear button is automatically
inherited from the input:



## Default props on theme

You can add [default props](/theming/default-props/) on the [theme](/theming/theme-object/)
to `Input` and `Input.Wrapper` components. These default props will be inherited by all inputs
that use `Input` and `Input.Wrapper` under the hood ([TextInput](/core/text-input/), [NativeSelect](/core/native-select/), [Textarea](/core/textarea/), etc.):



## Shared default props for all inputs

Default props on `Input` and `Input.Wrapper` cascade to every component that is built on top of
them ([TextInput](/core/text-input/), [Textarea](/core/textarea/), [NumberInput](/core/number-input/),
[Select](/core/select/), [DateInput](/dates/date-input/), and others). This is the easiest way to apply
the same `size`, `radius`, `variant`, `withAsterisk` or any other shared prop to all inputs at once.
Per-component default props always win over the shared ones, so you can still override individual
components when needed:



## Styles on theme

Same as with default props, you can use `Input` and `Input.Wrapper` [Styles API](/styles/styles-api/)
on the [theme](/theming/theme-object/) to add styles to all inputs:



## Change focus styles

Use `&:focus-within` selector to change inputs focus styles. You can apply these styles to
one component with `classNames` prop or to all inputs with [Styles API](/styles/styles-api/)
on [theme](/theming/theme-object/).



## InputBase component

`InputBase` component combines `Input` and `Input.Wrapper` components and supports `component` prop:



## Styles API

`Input` and `Input.Wrapper` components support [Styles API](/styles/styles-api) –
you can customize styles of any inner element with `classNames` and `styles` props.

`Input` Styles API selectors:



`Input.Wrapper` Styles API selectors:




## Accessibility

If you use `Input` component without associated label element, set `aria-label`:

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

// ok – the input is labelled by the aria-label
function WithAriaLabel() {
  return <Input aria-label="Your email" />;
}

// ok – the input is labelled by the label element
function WithLabel() {
  return (
    <>
      <label htmlFor="my-email">Your email</label>
      <Input id="my-email" />
    </>
  );
}
```

When you use `Input` with `Input.Wrapper` it is required to set `id` on both components
to connect label and other elements with the input:

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

function Demo() {
  return (
    <Input.Wrapper label="Your email" id="your-email">
      <Input id="your-email" />
    </Input.Wrapper>
  );
}
```

You can use [use-id](/hooks/use-id) to generate unique ids:

```tsx
import { Input } from '@mantine/core';
import { useId } from '@mantine/hooks';

function Demo() {
  const id = useId();
  return (
    <Input.Wrapper label="Your email" id={id}>
      <Input id={id} />
    </Input.Wrapper>
  );
}
```


## 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
Input(_props)
```



```ts
type WrapperProps = React.ComponentProps<'div'> & DataAttributes;

export type InputStylesNames = 'input' | 'wrapper' | 'section' | 'bottomSection';

export type InputVariant = 'default' | 'filled' | 'unstyled';

export type InputCssVariables = {
  wrapper:
    | '--input-height'
    | '--input-fz'
    | '--input-radius'
    | '--input-left-section-width'
    | '--input-right-section-width'
    | '--input-left-section-pointer-events'
    | '--input-right-section-pointer-events'
    | '--input-padding-y'
    | '--input-margin-top'
    | '--input-margin-bottom';
};

export interface InputStylesCtx {
  offsetTop: boolean | undefined;
  offsetBottom: boolean | undefined;
}

export interface __InputProps {
  /** Content section displayed on the left side of the input */
  leftSection?: React.ReactNode;

  /** Left section width, used to set `width` of the section and input `padding-left`, by default equals to the input height */
  leftSectionWidth?: React.CSSProperties['width'];

  /** Props passed down to the `leftSection` element */
  leftSectionProps?: React.ComponentProps<'div'>;

  /** Sets `pointer-events` styles on the `leftSection` element. Use `'all'` when section contains interactive elements (buttons, links). @default 'none' */
  leftSectionPointerEvents?: React.CSSProperties['pointerEvents'];

  /** Content section displayed on the right side of the input */
  rightSection?: React.ReactNode;

  /** Right section width, used to set `width` of the section and input `padding-right`, by default equals to the input height */
  rightSectionWidth?: React.CSSProperties['width'];

  /** Props passed down to the `rightSection` element */
  rightSectionProps?: React.ComponentProps<'div'>;

  /** Sets `pointer-events` styles on the `rightSection` element. Use `'all'` when section contains interactive elements (buttons, links). @default 'none' */
  rightSectionPointerEvents?: React.CSSProperties['pointerEvents'];

  /** Sets `required` attribute on the `input` element */
  required?: boolean;

  /** Key of `theme.radius` or any valid CSS value to set `border-radius`, numbers are converted to rem @default theme.defaultRadius */
  radius?: MantineRadius;

  /** Sets `disabled` attribute on the `input` element */
  disabled?: boolean;

  /** Controls input `height`, horizontal `padding`, and `font-size` @default 'sm' */
  size?: MantineSize | (string & {});

  /** Determines whether the input should have `cursor: pointer` style. Use when input acts as a button-like trigger (e.g., `component="button"` for Select/DatePicker). @default false */
  pointer?: boolean;

  /** Determines whether the input should have red border and red text color when the `error` prop is set @default true */
  withErrorStyles?: boolean;

  /** Determines whether the input should have green border when the `success` prop is set @default true */
  withSuccessStyles?: boolean;

  /** HTML `size` attribute for the input element (number of visible characters) */
  inputSize?: string;

  /** Section to be displayed when the input is `__clearable` and `rightSection` is not defined */
  __clearSection?: React.ReactNode;

  /** Determines whether the `__clearSection` should be displayed if it is passed to the component, has no effect if `rightSection` is defined */
  __clearable?: boolean;

  /** Determines how the clear button and rightSection are rendered @default 'both' */
  __clearSectionMode?: ClearSectionMode;

  /** Right section displayed when both `__clearSection` and `rightSection` are not defined */
  __defaultRightSection?: React.ReactNode;

  /** Displays loading indicator in the left or right section @default false */
  loading?: boolean;

  /** Position of the loading indicator @default 'right' */
  loadingPosition?: 'left' | 'right';

  /** Content section displayed at the bottom of the input, inside the border */
  __bottomSection?: React.ReactNode;

  /** Props passed down to the `__bottomSection` element */
  __bottomSectionProps?: React.ComponentProps<'div'>;
}

export interface InputProps extends BoxProps, __InputProps, StylesApiProps<InputFactory> {
  __staticSelector?: string;

  /** Props passed to Styles API context, replaces `Input.Wrapper` props */
  __stylesApiProps?: Record<string, any>;

  /** Determines whether the input should have error styles and `aria-invalid` attribute */
  error?: React.ReactNode;

  /** Determines whether the input should have success styles */
  success?: React.ReactNode;

  /** Adjusts padding and sizing calculations for multiline inputs (use with `component="textarea"`). Does not make the input multiline by itself. @default false */
  multiline?: boolean;

  /** Input element id */
  id?: string;

  /** Determines whether `aria-` and other accessibility attributes should be added to the input. Only disable when implementing custom accessibility handling. @default true */
  withAria?: boolean;

  /** Props passed down to the root element of the `Input` component */
  wrapperProps?: WrapperProps;

  /** Root element ref */
  rootRef?: React.Ref<HTMLDivElement>;
}

export type InputFactory = PolymorphicFactory<{
  props: InputProps;
  defaultRef: HTMLInputElement;
  defaultComponent: 'input';
  stylesNames: InputStylesNames;
  variant: InputVariant;
  vars: InputCssVariables;
  ctx: InputStylesCtx;
  staticComponents: {
    Label: typeof InputLabel;
    Error: typeof InputError;
    Success: typeof InputSuccess;
    Description: typeof InputDescription;
    Placeholder: typeof InputPlaceholder;
    Wrapper: typeof InputWrapper;
    ClearButton: typeof InputClearButton;
  };
}>;

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 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
PolymorphicFactory<{
  props: InputProps;
  defaultRef: HTMLInputElement;
  defaultComponent: 'input';
  stylesNames: InputStylesNames;
  variant: InputVariant;
  vars: InputCssVariables;
  ctx: InputStylesCtx;
  staticComponents: {
    Label: typeof InputLabel;
    Error: typeof InputError;
    Success: typeof InputSuccess;
    Description: typeof InputDescription;
    Placeholder: typeof InputPlaceholder;
    Wrapper: typeof InputWrapper;
    ClearButton: typeof InputClearButton;
  };
}>
MantineStyleProps
React.CSSProperties
MantineTheme
Partial<Record<Variable, string>>
Record<Variable, string>
Variable
MantineBreakpoint
Record<string, any>
React.ReactNode
React.ComponentProps<'div'>
MantineRadius
MantineSize
ClearSectionMode
StylesApiProps<InputFactory>
DataAttributes
React.Ref<HTMLDivElement>
HTMLDivElement
HTMLInputElement
```

---

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