Checkbox
Checkboxes allow users to select multiple items from a list of individual items, or to mark one individual item as selected.
install | yarn add @adobe/react-spectrum |
---|---|
added | 3.0.0 |
usage | import {Checkbox} from '@adobe/react-spectrum' |
Example#
<Checkbox>Unsubscribe</Checkbox>
<Checkbox>Unsubscribe</Checkbox>
<Checkbox>
Unsubscribe
</Checkbox>
Content#
Checkboxes accept children, which are rendered as the label.
Accessibility#
In certain cases a visible label isn't needed. For example, a checkbox used to select a table row.
If a visible label isn't specified, an aria-label
must be provided to the Checkbox for accessibility.
If the field is labeled by a separate element, an aria-labelledby
prop must be provided using the id of the labeling element instead.
Internationalization#
To internationalize a Checkbox, a localized label should be passed to the children
or aria-label
prop.
For languages that are read right-to-left (e.g. Hebrew and Arabic), the layout of the checkbox is automatically flipped.
Value#
Checkboxes are not selected by default. The defaultSelected
prop can be used to set the default state (uncontrolled).
Alternatively, the isSelected
prop can be used to make the selected state controlled. See React's documentation on uncontrolled components for more info.
function Example() {
let [selected, setSelected] = React.useState(true);
return (
<Flex direction="row">
<Checkbox defaultSelected>Subscribe (uncontrolled)</Checkbox>
<Checkbox isSelected={selected} onChange={setSelected}>
Subscribe (controlled)
</Checkbox>
</Flex>
);
}
function Example() {
let [selected, setSelected] = React.useState(true);
return (
<Flex direction="row">
<Checkbox defaultSelected>
Subscribe (uncontrolled)
</Checkbox>
<Checkbox
isSelected={selected}
onChange={setSelected}
>
Subscribe (controlled)
</Checkbox>
</Flex>
);
}
function Example() {
let [
selected,
setSelected
] = React.useState(
true
);
return (
<Flex direction="row">
<Checkbox
defaultSelected
>
Subscribe
(uncontrolled)
</Checkbox>
<Checkbox
isSelected={selected}
onChange={setSelected}
>
Subscribe
(controlled)
</Checkbox>
</Flex>
);
}
Indeterminate#
A Checkbox can be in an indeterminate state, controlled using the isIndeterminate
prop.
This overrides the appearance of the Checkbox, whether selection is controlled or uncontrolled.
The Checkbox will visually remain indeterminate until the isIndeterminate
prop is set to false, regardless of user interaction.
<Checkbox isIndeterminate>Subscribe</Checkbox>
<Checkbox isIndeterminate>Subscribe</Checkbox>
<Checkbox
isIndeterminate
>
Subscribe
</Checkbox>
HTML forms#
Checkbox supports the name
and value
props for integration with HTML forms.
<Checkbox name="newsletter" value="subscribe">Subscribe</Checkbox>
<Checkbox name="newsletter" value="subscribe">
Subscribe
</Checkbox>
<Checkbox
name="newsletter"
value="subscribe"
>
Subscribe
</Checkbox>
Events#
Checkboxes accept a user defined onChange
prop, triggered whenever the Checkbox is clicked.
The example below uses onChange
to alert the user to changes in the checkbox's state.
function Example() {
let [selected, setSelection] = React.useState(false);
return (
<Flex direction="column">
<Checkbox isSelected={selected} onChange={setSelection}>
Subscribe
</Checkbox>
<View>{`You are `}</View>
</Flex>
);
}
function Example() {
let [selected, setSelection] = React.useState(false);
return (
<Flex direction="column">
<Checkbox
isSelected={selected}
onChange={setSelection}
>
Subscribe
</Checkbox>
<View>
{`You are `}
</View>
</Flex>
);
}
function Example() {
let [
selected,
setSelection
] = React.useState(
false
);
return (
<Flex direction="column">
<Checkbox
isSelected={selected}
onChange={setSelection}
>
Subscribe
</Checkbox>
<View>
{`You are `}
</View>
</Flex>
);
}
Validation#
Checkboxes can display a validation state to communicate to the user if the current value is invalid.
Implement your own validation logic in your app and set the isInvalid
prop accordingly.
The invalid state is only communicated via a color change so in order to be accessible the validation error must also be communicated in another way.
<Checkbox isInvalid>I accept the terms and conditions</Checkbox>
<Checkbox isInvalid>
I accept the terms and conditions
</Checkbox>
<Checkbox isInvalid>
I accept the terms
and conditions
</Checkbox>
Props#
Name | Type | Default | Description |
isEmphasized | boolean | — | This prop sets the emphasized style which provides visual prominence. |
isIndeterminate | boolean | — | Indeterminism is presentational only. The indeterminate visual representation remains regardless of user interaction. |
children | ReactNode | — | The label for the element. |
defaultSelected | boolean | — | Whether the element should be selected (uncontrolled). |
isSelected | boolean | — | Whether the element should be selected (controlled). |
value | string | — | The value of the input element, used when submitting an HTML form. See MDN. |
isDisabled | boolean | — | Whether the input is disabled. |
isReadOnly | boolean | — | Whether the input can be selected but not changed by the user. |
isRequired | boolean | — | Whether user input is required on the input before form submission. |
isInvalid | boolean | — | Whether the input value is invalid. |
validationBehavior | 'aria' | 'native' | 'aria' | Whether to use native HTML form validation to prevent form submission when the value is missing or invalid, or mark the field as required or invalid via ARIA. |
validate | (
(value: boolean
)) => ValidationError
| true
| null
| undefined | — | A function that returns an error message if a given value is invalid.
Validation errors are displayed to the user when the form is submitted
if |
autoFocus | boolean | — | Whether the element should receive focus on render. |
name | string | — | The name of the input element, used when submitting an HTML form. See MDN. |
Events
Name | Type | Description |
onChange | (
(isSelected: boolean
)) => void | Handler that is called when the element's selection state changes. |
onFocus | (
(e: FocusEvent<Target>
)) => void | Handler that is called when the element receives focus. |
onBlur | (
(e: FocusEvent<Target>
)) => void | Handler that is called when the element loses focus. |
onFocusChange | (
(isFocused: boolean
)) => void | Handler that is called when the element's focus status changes. |
onKeyDown | (
(e: KeyboardEvent
)) => void | Handler that is called when a key is pressed. |
onKeyUp | (
(e: KeyboardEvent
)) => void | Handler that is called when a key is released. |
Layout
Name | Type | Description |
flex | Responsive<string
| number
| boolean> | When used in a flex layout, specifies how the element will grow or shrink to fit the space available. See MDN. |
flexGrow | Responsive<number> | When used in a flex layout, specifies how the element will grow to fit the space available. See MDN. |
flexShrink | Responsive<number> | When used in a flex layout, specifies how the element will shrink to fit the space available. See MDN. |
flexBasis | Responsive<number | string> | When used in a flex layout, specifies the initial main size of the element. See MDN. |
alignSelf | Responsive<'auto'
| 'normal'
| 'start'
| 'end'
| 'center'
| 'flex-start'
| 'flex-end'
| 'self-start'
| 'self-end'
| 'stretch'> | Overrides the alignItems property of a flex or grid container. See MDN. |
justifySelf | Responsive<'auto'
| 'normal'
| 'start'
| 'end'
| 'flex-start'
| 'flex-end'
| 'self-start'
| 'self-end'
| 'center'
| 'left'
| 'right'
| 'stretch'> | Specifies how the element is justified inside a flex or grid container. See MDN. |
order | Responsive<number> | The layout order for the element within a flex or grid container. See MDN. |
gridArea | Responsive<string> | When used in a grid layout, specifies the named grid area that the element should be placed in within the grid. See MDN. |
gridColumn | Responsive<string> | When used in a grid layout, specifies the column the element should be placed in within the grid. See MDN. |
gridRow | Responsive<string> | When used in a grid layout, specifies the row the element should be placed in within the grid. See MDN. |
gridColumnStart | Responsive<string> | When used in a grid layout, specifies the starting column to span within the grid. See MDN. |
gridColumnEnd | Responsive<string> | When used in a grid layout, specifies the ending column to span within the grid. See MDN. |
gridRowStart | Responsive<string> | When used in a grid layout, specifies the starting row to span within the grid. See MDN. |
gridRowEnd | Responsive<string> | When used in a grid layout, specifies the ending row to span within the grid. See MDN. |
Spacing
Name | Type | Description |
margin | Responsive<DimensionValue> | The margin for all four sides of the element. See MDN. |
marginTop | Responsive<DimensionValue> | The margin for the top side of the element. See MDN. |
marginBottom | Responsive<DimensionValue> | The margin for the bottom side of the element. See MDN. |
marginStart | Responsive<DimensionValue> | The margin for the logical start side of the element, depending on layout direction. See MDN. |
marginEnd | Responsive<DimensionValue> | The margin for the logical end side of an element, depending on layout direction. See MDN. |
marginX | Responsive<DimensionValue> | The margin for both the left and right sides of the element. See MDN. |
marginY | Responsive<DimensionValue> | The margin for both the top and bottom sides of the element. See MDN. |
Sizing
Name | Type | Description |
width | Responsive<DimensionValue> | The width of the element. See MDN. |
minWidth | Responsive<DimensionValue> | The minimum width of the element. See MDN. |
maxWidth | Responsive<DimensionValue> | The maximum width of the element. See MDN. |
height | Responsive<DimensionValue> | The height of the element. See MDN. |
minHeight | Responsive<DimensionValue> | The minimum height of the element. See MDN. |
maxHeight | Responsive<DimensionValue> | The maximum height of the element. See MDN. |
Positioning
Name | Type | Description |
position | Responsive<'static'
| 'relative'
| 'absolute'
| 'fixed'
| 'sticky'> | Specifies how the element is positioned. See MDN. |
top | Responsive<DimensionValue> | The top position for the element. See MDN. |
bottom | Responsive<DimensionValue> | The bottom position for the element. See MDN. |
left | Responsive<DimensionValue> | The left position for the element. See MDN. Consider using start instead for RTL support. |
right | Responsive<DimensionValue> | The right position for the element. See MDN. Consider using start instead for RTL support. |
start | Responsive<DimensionValue> | The logical start position for the element, depending on layout direction. See MDN. |
end | Responsive<DimensionValue> | The logical end position for the element, depending on layout direction. See MDN. |
zIndex | Responsive<number> | The stacking order for the element. See MDN. |
isHidden | Responsive<boolean> | Hides the element. |
Accessibility
Name | Type | Description |
id | string | The element's unique identifier. See MDN. |
excludeFromTabOrder | boolean | Whether to exclude the element from the sequential tab order. If true, the element will not be focusable via the keyboard by tabbing. This should be avoided except in rare scenarios where an alternative means of accessing the element or its functionality via the keyboard is available. |
aria-controls | string | Identifies the element (or elements) whose contents or presence are controlled by the current element. |
aria-label | string | Defines a string value that labels the current element. |
aria-labelledby | string | Identifies the element (or elements) that labels the current element. |
aria-describedby | string | Identifies the element (or elements) that describes the object. |
aria-details | string | Identifies the element (or elements) that provide a detailed, extended description for the object. |
aria-errormessage | string | Identifies the element that provides an error message for the object. |
Advanced
Name | Type | Description |
UNSAFE_className | string | Sets the CSS className for the element. Only use as a last resort. Use style props instead. |
UNSAFE_style | CSSProperties | Sets inline style for the element. Only use as a last resort. Use style props instead. |
Visual options#
Disabled#
<Checkbox isDisabled>Subscribe</Checkbox>
<Checkbox isDisabled>Subscribe</Checkbox>
<Checkbox isDisabled>
Subscribe
</Checkbox>
Emphasized#
<Checkbox isEmphasized defaultSelected>Subscribe</Checkbox>
<Checkbox isEmphasized defaultSelected>Subscribe</Checkbox>
<Checkbox
isEmphasized
defaultSelected
>
Subscribe
</Checkbox>