# withConstrainedTabbing

`withConstrainedTabbing` is a React [higher-order component](https://facebook.github.io/react/docs/higher-order-components.html) adding the ability to constrain keyboard navigation with the Tab key within a component. For accessibility reasons, some UI components need to constrain Tab navigation, for example modal dialogs or similar UI. Use of this component is recommended only in cases where a way to navigate away from the wrapped component is implemented by other means, usually by pressing the Escape key or using a specific UI control, e.g. a "Close" button.

## Usage

Wrap your original component with `withConstrainedTabbing`.

```jsx
import { useState } from 'react';
import {
	withConstrainedTabbing,
	TextControl,
	Button,
} from '@wordpress/components';

const ConstrainedTabbing = withConstrainedTabbing(
	( { children } ) => children
);

const MyComponentWithConstrainedTabbing = () => {
	const [ isConstrainedTabbing, setIsConstrainedTabbing ] = useState( false );
	let form = (
		<form>
			<TextControl
				__next40pxDefaultSize
				label="Input 1"
				onChange={ () => {} }
			/>
			<TextControl
				__next40pxDefaultSize
				label="Input 2"
				onChange={ () => {} }
			/>
		</form>
	);
	if ( isConstrainedTabbing ) {
		form = <ConstrainedTabbing>{ form }</ConstrainedTabbing>;
	}

	const toggleConstrain = () => {
		setIsConstrainedTabbing( ( state ) => ! state );
	};

	return (
		<div>
			{ form }
			<Button variant="secondary" onClick={ toggleConstrain }>
				{ isConstrainedTabbing ? 'Disable' : 'Enable' } constrain
				tabbing
			</Button>
		</div>
	);
};
```
