Input

A native input element that automatically works with Field.

Base UI React 1.8.0

Name

FineSoft Stencil

Name

react-input.tsx stencil-input.tsx index.module.css

import { Input } from '@base-ui/react/input';
import styles from './index.module.css';

export default function ExampleInput() {
  return (
    <label className={styles.Label}>
      Name
      <Input placeholder="e.g. Colm Tuite" className={styles.Input} />
    </label>
  );
}

The Stencil example uses fs-input directly. It renders a native input, supports native labels and forms, and emits valueChange with event.detail.value for controlled consumers. inputRef exposes the native input for selection, files, and validity APIs. No component-specific controller is supplied by the docs.

Field is available for the Stencil example: it supplies validation, label registration, and field-state attributes. The migrated Form adds inherited validation mode, consolidated values, form-level errors, and submit validation when the Input is used through Field. React render, function-valued className/style, and React context are not Web Component APIs. Outside Field, the original Input also leaves data-valid, data-touched, data-dirty, data-filled, and data-focused unset. Like the original, canceling a value notification does not undo an already-performed native uncontrolled edit; a controlled consumer keeps its value unchanged to reject that edit.

Usage guidelines

Form controls must have an accessible name: It can be created using a <label> element or the Field component. See the forms guide.

Anatomy

Import the component and use it as a single part:

Anatomy

import { Input } from '@base-ui/react/input';

<Input />

API reference

defaultValueUnion—

Name: defaultValue
Description: The default value of the input. Use when uncontrolled.
Type: string | number | string[] | undefined

valueUnion—

Name: value
Description: The value of the input. Use when controlled.
Type: string | string[] | number | undefined

onValueChangefunction—

Name: onValueChange
Description: Callback fired when the value changes. Use when controlled.
Type: | (( value: string, eventDetails: Input.ChangeEventDetails, ) => void) | undefined

classNamestring | function—

Name: className
Description: CSS class applied to the element, or a function that returns a class based on the component’s state.
Type: | string | ((state: Input.State) => string | undefined) | undefined

styleReact.CSSProperties | function—

Name: style
Description: Style applied to the element, or a function that returns a style object based on the component’s state.
Type: | React.CSSProperties | (( state: Input.State, ) => React.CSSProperties | undefined) | undefined

renderReactElement | function—

Name: render
Description: Allows you to replace the component’s HTML element with a different tag, or compose it with another component.

Accepts a ReactElement or a function that returns the element to render.
Type: | ReactElement | ((props: HTMLProps, state: Input.State) => ReactElement) | undefined

data-disabled

Present when the input is disabled.

data-valid

Present when the input is in a valid state (when wrapped in Field.Root).

data-invalid

Present when the input is in an invalid state (when wrapped in Field.Root).

data-dirty

Present when the input’s value has changed (when wrapped in Field.Root).

data-touched

Present when the input has been touched (when wrapped in Field.Root).

data-filled

Present when the input is filled (when wrapped in Field.Root).

data-focused

Present when the input is focused (when wrapped in Field.Root).

Attribute	Description	-
`data-disabled`	Present when the input is disabled.
`data-valid`	Present when the input is in a valid state (when wrapped in Field.Root).
`data-invalid`	Present when the input is in an invalid state (when wrapped in Field.Root).
`data-dirty`	Present when the input’s value has changed (when wrapped in Field.Root).
`data-touched`	Present when the input has been touched (when wrapped in Field.Root).
`data-filled`	Present when the input is filled (when wrapped in Field.Root).
`data-focused`	Present when the input is focused (when wrapped in Field.Root).

Input.PropsHide

Re-Export of Input props as InputProps

Input.StateHide

type InputState = {
  /** Whether the component should ignore user interaction. */
  disabled: boolean;
  /** Whether the field has been touched. */
  touched: boolean;
  /** Whether the field value has changed from its initial value. */
  dirty: boolean;
  /** Whether the field is valid. */
  valid: boolean | null;
  /** Whether the field has a value. */
  filled: boolean;
  /** Whether the field is focused. */
  focused: boolean;
}

Input.ChangeEventReasonHide

type InputChangeEventReason = 'none'

Input.ChangeEventDetailsHide

type InputChangeEventDetails = {
  /** The reason for the event. */
  reason: 'none';
  /** The native event associated with the custom event. */
  event: Event;
  /** Cancels Base UI from handling the event. */
  cancel: () => void;
  /** Allows the event to propagate in cases where Base UI will stop the propagation. */
  allowPropagation: () => void;
  /** Indicates whether the event has been canceled. */
  isCanceled: boolean;
  /** Indicates whether the event is allowed to propagate. */
  isPropagationAllowed: boolean;
  /** The element that triggered the event, if applicable. */
  trigger: Element | undefined;
}