storybook/addons/a11y

storybook-addon-a11y

This storybook addon can be helpful to make your UI components more accessible.

Framework Support

Getting started

First, install the addon.

$ yarn add @storybook/addon-a11y --dev

Add this line to your main.js file (create this file inside your storybook config directory if needed).

module.exports = {
  addons: ['@storybook/addon-a11y/register'],
};

import the withA11y decorator to check your stories for violations within your components.

import React from 'react';

import { withA11y } from '@storybook/addon-a11y';

export default {
  title: 'button',
  decorators: [withA11y],
};

export const accessible = () => <button>Accessible button</button>;

export const inaccessible = () => (
  <button style={{ backgroundColor: 'red', color: 'darkRed' }}>Inaccessible button</button>
);

Using the preset

Add the decorator to all stories:

module.exports = {
  addons: ['@storybook/addon-a11y'],
};

Parameters

For more customizability use parameters to configure aXe options. You can override these options at story level too.

import React from 'react';
import { storiesOf, addDecorator, addParameters } from '@storybook/react';

import { withA11y } from '@storybook/addon-a11y';

export default {
  title: 'button',
  decorators: [withA11y],
  parameters: {
    a11y: {
      // optional selector which element to inspect
      element: '#root',
      // axe-core configurationOptions (https://github.com/dequelabs/axe-core/blob/develop/doc/API.md#parameters-1)
      config: {},
      // axe-core optionsParameter (https://github.com/dequelabs/axe-core/blob/develop/doc/API.md#options-parameter)
      options: {},
      // optional flag to prevent the automatic check
      manual: true,
    },
  },
};

export const accessible = () => <button>Accessible button</button>;

export const inaccessible = () => (
  <button style={{ backgroundColor: 'red', color: 'darkRed' }}>Inaccessible button</button>
);

Roadmap

• Make UI accessible
• Show in story where violations are.
• Add more example tests
• Add tests
• Make CI integration possible