Radio

Ready

A radio button component that allows users to select one option from a group of mutually exclusive choices.

Storybook docs

Preview

Open in Storybook

Code

Install

npm install @fbin-web/neighborhood-core

Import

import { NbhdRadio } from '@fbin-web/neighborhood-core';

Usage

<nbhd-radio
  label="Radio Label"
  title="Radio Title"
  value="yes"
  name="radio-1"
  id="radio-1">
</nbhd-radio>

Install

npm install @fbin-web/neighborhood-react

Import

import { NbhdRadio } from '@fbin-web/neighborhood-react';

Usage

import { NbhdRadio } from '@fbin-web/neighborhood-react';

const App = () => (
  <>
    <NbhdRadio
      label="Radio Label"
      title="Radio Title"
      value="yes"
      name="radio-1"
      id="radio-1"></NbhdRadio>
  </>
);

Properties

Property	Attribute	Type	Default	Description
`form`	`form`	`string`	—	ID of a elsewhere on the page to belong to, like a native control’s `form` attribute.
`id`	`id`	`string`	—	The id of the radio button.
`label`	`label`	`string`	—	The label text for the radio button.
`value`	`value`	`string`	—	The value of the radio button.
`title`	`title`	`string`	—	The title of the radio button.
`name`	`name`	`string`	—	The name of the radio button. The form field name it submits under.
`ariaLabel`	`aria-label`	`string`	—	Descriptive text for additional context.
`cssClass`	`css-class`	`string`	—	Additional CSS classes to apply to the radio button.
`errorText`	`error-text`	`string`	—	Error message text to display when invalid. Defaults to "This field has an error." when empty.
`helpText`	`help-text`	`string`	—	Help text to provide additional context.
`invalid`	`invalid`	`boolean`	`false`	Marks the radio as invalid and shows the error text.
`disabled`	`disabled`	`boolean`	`false`	Disables the radio button from being selected.
`checked`	`checked`	`boolean`	`false`	Whether the radio button is checked initially.
`required`	`required`	`boolean`	`false`	Whether the radio button is required.

Events

Name	Description	Event Detail
`click`	Fired when the radio button is clicked.	`MouseEvent`
`input`	Fired when the radio button value changes.	`InputEvent`
`nbhd-change`	Emitted when the radio button is checked. The value is its `value`. Inside a Radio Group, listen on the group instead; change events from its radios stop there.	`{ value: string }`
`change`	Emitted alongside nbhd-change.	`{ value: string }`

Form methods

Form-associated: a standalone radio submits its value when checked; radios sharing a `name` uncheck each other, but each is its own Tab stop without arrow-key movement. For a group that behaves like native radios (one Tab stop, arrow keys), use nbhd-radio-group, which also submits instead of its radios.

Name	Description
`checkValidity()`	Returns false (and fires `invalid`) if the control fails validation.
`reportValidity()`	Like checkValidity(), and shows the browser’s validation message on the control.
`setCustomValidity(message)`	Marks the control invalid with your own message; an empty string clears it.
`validity`	The ValidityState (valueMissing, typeMismatch, customError, …).
`validationMessage`	The message the browser would show.
`willValidate`	Whether the control takes part in form validation (false when disabled).
`associatedForm`	The the control belongs to, or null.

Slots

Name	Description
`label`	Custom content for the radio button label. When omitted, the label property value is rendered.
`help`	Help text content displayed below the radio when not in an invalid state.
`error`	Error message content displayed below the radio when in an invalid state.

CSS Parts

Name	Description
`base`	The wrapper div for the radio form control.
`label`	The label element for the radio button.
`label-slot`	The named label slot inside the radio label.
`label-text`	The fallback text element that displays the label property value.
`required`	The required marker (*) shown in the label when required. Hidden from assistive technology, which announces the native required state.
`text`	The wrapper div for help and error text.
`help`	The help slot element.
`error`	The error slot element.

nbhd-radio::part(base) {
  /* your styles */
}

CSS Properties

Set these on nbhd-radio or an ancestor to override the defaults. Token is the design token a default comes from and Value is what it resolves to in core Neighborhood; brands may override them. Properties that adapt to surface follow the light or inverse surface they sit on until you set them.

Radio

Property	Token	Value	Copy
`--nbhd-radio-box-borderRadius`	`--nbhd-border-radius-full`	`9999px`
`--nbhd-radio-indicator-borderRadius`	`--nbhd-border-radius-full`	`9999px`

Form control

Property	Token	Value
`--nbhd-formControl-display`	—	`inline`
`--nbhd-formControl-field-appearance`	—	`none`
`--nbhd-formControl-field-borderRadius`	`--nbhd-border-radius-none`	`0`
`--nbhd-formControl-field-color`	`--nbhd-context-color-control-foreground`	Adapts to surface
`--nbhd-formControl-field-display`	—	`inline-block`
`--nbhd-formControl-field-fontFamily`	`--nbhd-typography-body-fontFamily`	`sans-serif`
`--nbhd-formControl-field-fontSize`	`--nbhd-typography-body-fontSize`	`1rem`
`--nbhd-formControl-field-inlineSize`	—	`100%`
`--nbhd-formControl-field-position`	—	`relative`
`--nbhd-formControl-fontFamily`	`--nbhd-typography-body-fontFamily`	`sans-serif`
`--nbhd-formControl-host-display`	—	`block`
`--nbhd-formControl-label-color`	`--nbhd-context-color-text-primary`	Adapts to surface
`--nbhd-formControl-label-display`	—	`block`
`--nbhd-formControl-label-fontFamily`	`--nbhd-typography-label-fontFamily`	`sans-serif`
`--nbhd-formControl-label-fontSize`	`--nbhd-typography-label-fontSize`	`1rem`
`--nbhd-formControl-label-fontWeight`	`--nbhd-typography-label-fontWeight`	`600`
`--nbhd-formControl-label-letterSpacing`	—	`inherit`
`--nbhd-formControl-label-marginBlock`	`--nbhd-space-0 --nbhd-space-05`	`0px 2px`
`--nbhd-formControl-label-position`	—	`relative`
`--nbhd-formControl-label-textTransform`	—	`inherit`
`--nbhd-formControl-marginBlock`	`--nbhd-space-0`	`0px`
`--nbhd-formControl-maxInlineSize`	—	`100%`
`--nbhd-formControl-paddingBlock`	`--nbhd-space-0`	`0px`
`--nbhd-formControl-paddingInline`	`--nbhd-space-0`	`0px`
`--nbhd-formControl-position`	—	`relative`
`--nbhd-formControl-required-gap`	`--nbhd-space-05`	`2px`
`--nbhd-formControl-text-marginBlock`	`--nbhd-space-1 --nbhd-space-0`	`4px 0px`

Selection control

Property	Token	Value
`--nbhd-selectionControl-box-blockSize`	—	`18px`
`--nbhd-selectionControl-box-borderColor`	`--nbhd-context-color-control-border`	Adapts to surface
`--nbhd-selectionControl-box-borderRadius`	`--nbhd-border-radius-sm`	`2px`
`--nbhd-selectionControl-box-borderStyle`	—	`solid`
`--nbhd-selectionControl-box-borderWidth`	`--nbhd-border-width-subtle`	`1px`
`--nbhd-selectionControl-box-inlineSize`	—	`18px`
`--nbhd-selectionControl-checked-label-fontWeight`	—	`600`
`--nbhd-selectionControl-focus-outlineColor`	`--nbhd-context-color-focus-outline`	Adapts to surface
`--nbhd-selectionControl-formControl-marginBlock`	`--nbhd-space-1`	`4px`
`--nbhd-selectionControl-formControl-paddingBlock`	`--nbhd-space-1`	`4px`
`--nbhd-selectionControl-host-display`	—	`block`
`--nbhd-selectionControl-indicator-backgroundColor`	—	`transparent`
`--nbhd-selectionControl-indicator-blockSize`	—	`10px`
`--nbhd-selectionControl-indicator-inlineSize`	—	`10px`
`--nbhd-selectionControl-indicator-marginInline`	`--nbhd-space-1 --nbhd-space-0`	`4px 0px`
`--nbhd-selectionControl-label-alignItems`	—	`center`
`--nbhd-selectionControl-label-cursor`	—	`pointer`
`--nbhd-selectionControl-label-display`	—	`flex`
`--nbhd-selectionControl-label-fontWeight`	`--nbhd-typography-body-fontWeight`	`400`
`--nbhd-selectionControl-label-gap`	`--nbhd-space-1`	`4px`
`--nbhd-selectionControl-label-justifyContent`	—	`start`
`--nbhd-selectionControl-label-paddingInline`	`--nbhd-space-9 --nbhd-space-0`	`36px 0px`
`--nbhd-selectionControl-label-textTransform`	—	`normal`
`--nbhd-selectionControl-text-paddingInlineStart`	`--nbhd-space-9`	`36px`

Dependencies

Child components <nbhd-radio> renders internally. Import them too when you tree-shake.

TextReady <nbhd-text>

Used by

Radio GroupReady <nbhd-radio-group>