useCheckboxGroup
Provides the behavior and accessibility implementation for a checkbox group component. Checkbox groups allow users to select multiple items from a list of options.
install | yarn add @react-aria/checkbox |
---|---|
version | 3.2.3 |
usage | import {useCheckboxGroup, useCheckboxGroupItem} from '@react-aria/checkbox' |
API#
useCheckboxGroup(
(props: AriaCheckboxGroupProps,
, state: CheckboxGroupState
)): CheckboxGroupAria
useCheckboxGroupItem(
props: AriaCheckboxGroupItemProps,
state: CheckboxGroupState,
inputRef: RefObject<HTMLInputElement>
): CheckboxAria
Features#
Checkbox groups can be built in HTML with the
<fieldset>
and <input> elements,
however these can be difficult to style. useCheckboxGroup
and useCheckboxGroupItem
help achieve accessible
checkbox groups that can be styled as needed.
- Checkbox groups are exposed to assistive technology via ARIA
- Each checkbox is built with a native HTML
<input>
element, which can be optionally visually hidden to allow custom styling - Full support for browser features like form autofill
- Keyboard focus management and cross browser normalization
- Group and checkbox labeling support for assistive technology
Anatomy#
A checkbox group consists of a set of checkboxes, and a label. Each checkbox includes a label and a visual selection indicator. Zero or more checkboxes within the group can be selected at a time. Users may click or touch a checkbox to select it, or use the Tab key to navigate to it and the Space key to toggle it.
useCheckboxGroup
returns props for the group and its label, which you should spread
onto the appropriate element:
Name | Type | Description |
groupProps | HTMLAttributes<HTMLElement> | Props for the checkbox group wrapper element. |
labelProps | HTMLAttributes<HTMLElement> | Props for the checkbox group's visible label (if any). |
useCheckboxGroupItem
returns props for an individual checkbox:
Name | Type | Description |
inputProps | InputHTMLAttributes<HTMLInputElement> | Props for the input element. |
Selection state is managed by the useCheckboxGroupState
hook in @react-stately/checkbox
. The state object should be passed as an option to useCheckboxGroup
and useCheckboxGroupItem
.
Individual checkboxes must have a visual label. If the checkbox group does not have a visible label,
an aria-label
or aria-labelledby
prop must be passed instead to identify the element to assistive
technology.
Note: useCheckboxGroupItem
should only be used when it is contained within a checkbox group. For a
standalone checkbox, use the useCheckbox hook instead.
Example#
This example uses native input elements for the checkboxes, and React context to share state from the group
to each checkbox. An HTML <label>
element wraps the native input and the text to provide an implicit label
for the radio.
import {useCheckboxGroupState} from '@react-stately/checkbox';
let CheckboxGroupContext = ReactcreateContext(null);
function CheckboxGroup(props) {
let {children label} = props;
let state = useCheckboxGroupState(props);
let {groupProps labelProps} = useCheckboxGroup(props state);
return (
<div ...groupProps>
<span ...labelProps> label</span>
<CheckboxGroupContextProvider value= state>
children
</CheckboxGroupContextProvider>
</div>
);
}
function Checkbox(props) {
let {children} = props;
let state = ReactuseContext(CheckboxGroupContext);
let ref = ReactuseRef();
let {inputProps} = useCheckboxGroupItem(props state ref);
let isDisabled = stateisDisabled || propsisDisabled;
let isSelected = stateisSelected(propsvalue);
return (
<label
style={
display: 'block'
color: (isDisabled && 'var(--gray)') || (isSelected && 'var(--blue)')
}>
<input ...inputProps ref= ref />
children
</label>
);
}
<CheckboxGroup label="Favorite sports">
<Checkbox value="soccer" isDisabled>
Soccer
</Checkbox>
<Checkbox value="baseball">Baseball</Checkbox>
<Checkbox value="basketball">Basketball</Checkbox>
</CheckboxGroup>
import {useCheckboxGroupState} from '@react-stately/checkbox';
let CheckboxGroupContext = ReactcreateContext(null);
function CheckboxGroup(props) {
let {children label} = props;
let state = useCheckboxGroupState(props);
let {groupProps labelProps} = useCheckboxGroup(
props
state
);
return (
<div ...groupProps>
<span ...labelProps> label</span>
<CheckboxGroupContextProvider value= state>
children
</CheckboxGroupContextProvider>
</div>
);
}
function Checkbox(props) {
let {children} = props;
let state = ReactuseContext(CheckboxGroupContext);
let ref = ReactuseRef();
let {inputProps} = useCheckboxGroupItem(
props
state
ref
);
let isDisabled = stateisDisabled || propsisDisabled;
let isSelected = stateisSelected(propsvalue);
return (
<label
style={
display: 'block'
color:
(isDisabled && 'var(--gray)') ||
(isSelected && 'var(--blue)')
}>
<input ...inputProps ref= ref />
children
</label>
);
}
<CheckboxGroup label="Favorite sports">
<Checkbox value="soccer" isDisabled>
Soccer
</Checkbox>
<Checkbox value="baseball">Baseball</Checkbox>
<Checkbox value="basketball">Basketball</Checkbox>
</CheckboxGroup>
import {useCheckboxGroupState} from '@react-stately/checkbox';
let CheckboxGroupContext = ReactcreateContext(
null
);
function CheckboxGroup(
props
) {
let {
children
label
} = props;
let state = useCheckboxGroupState(
props
);
let {
groupProps
labelProps
} = useCheckboxGroup(
props
state
);
return (
<div ...groupProps>
<span
...labelProps>
label
</span>
<CheckboxGroupContextProvider
value= state>
children
</CheckboxGroupContextProvider>
</div>
);
}
function Checkbox(
props
) {
let {children} = props;
let state = ReactuseContext(
CheckboxGroupContext
);
let ref = ReactuseRef();
let {
inputProps
} = useCheckboxGroupItem(
props
state
ref
);
let isDisabled =
stateisDisabled ||
propsisDisabled;
let isSelected = stateisSelected(
propsvalue
);
return (
<label
style={
display: 'block'
color:
(isDisabled &&
'var(--gray)') ||
(isSelected &&
'var(--blue)')
}>
<input
...inputProps
ref= ref
/>
children
</label>
);
}
<CheckboxGroup label="Favorite sports">
<Checkbox
value="soccer"
isDisabled>
Soccer
</Checkbox>
<Checkbox value="baseball">
Baseball
</Checkbox>
<Checkbox value="basketball">
Basketball
</Checkbox>
</CheckboxGroup>
Styling#
See the useCheckbox docs for details on how to customize the styling of checkbox elements.