storybook-dark-mode

What is storybook-dark-mode?

storybook-dark-mode is an addon for Storybook that allows you to toggle between light and dark themes within your Storybook environment. This can be particularly useful for testing and demonstrating how your components look in different themes.

What are storybook-dark-mode's main functionalities?

Toggle between light and dark mode

This feature allows you to toggle between light and dark themes in your Storybook environment. The code sample demonstrates how to add the dark mode toggle using the `withThemesProvider` decorator.

import { addDecorator } from '@storybook/react';
import { withThemesProvider } from 'storybook-addon-styled-component-theme';
import { themes } from '@storybook/theming';

const themes = [themes.light, themes.dark];
addDecorator(withThemesProvider(themes));

Persist theme selection

This feature allows the selected theme to persist across sessions. The code sample shows how to enable persistence by passing an options object with `persist: true` to the `withThemesProvider` decorator.

import { addDecorator } from '@storybook/react';
import { withThemesProvider } from 'storybook-addon-styled-component-theme';
import { themes } from '@storybook/theming';

const themes = [themes.light, themes.dark];
addDecorator(withThemesProvider(themes, { persist: true }));

Custom themes

This feature allows you to define and use custom themes. The code sample demonstrates how to create custom themes and add them to the `withThemesProvider` decorator.

import { addDecorator } from '@storybook/react';
import { withThemesProvider } from 'storybook-addon-styled-component-theme';

const customThemes = [
  { name: 'Light', backgroundColor: '#ffffff', color: '#000000' },
  { name: 'Dark', backgroundColor: '#000000', color: '#ffffff' }
];
addDecorator(withThemesProvider(customThemes));

Other packages similar to storybook-dark-mode

storybook-addon-themes

storybook-addon-themes is another Storybook addon that allows you to switch between different themes. It provides a similar functionality to storybook-dark-mode but with more flexibility in defining and managing multiple themes.

storybook-addon-styled-component-theme

storybook-addon-styled-component-theme is an addon specifically designed for use with styled-components. It allows you to switch between different styled-component themes within Storybook, offering a more tailored solution for projects using styled-components.

storybook-addon-designs

storybook-addon-designs is an addon that allows you to embed Figma, Sketch, and other design tool frames directly into your Storybook. While it doesn't provide dark mode functionality, it offers a way to visually compare your components with design specifications, which can be complementary to theme switching.

README

storybook-dark-mode

A storybook addons that lets your users toggle between dark and light mode.

Installation

Install the following npm module:

npm i --save-dev storybook-dark-mode

or with yarn:

yarn add -D storybook-dark-mode

Then, add following content to .storybook/main.js

module.exports = {
  addons: ['storybook-dark-mode']
};

Upgrade from earlier version

Change in .storybook/main.js

module.exports = {
-  addons: ['storybook-dark-mode/register']
+  addons: ['storybook-dark-mode']
};

Configuration

Configure the dark and light mode by adding the following to your .storybook/preview.js file:

import { themes } from '@storybook/theming';

export const parameters = {
  darkMode: {
    // Override the default dark theme
    dark: { ...themes.dark, appBg: 'black' },
    // Override the default light theme
    light: { ...themes.normal, appBg: 'red' }
  }
};

Default Theme

Order of precedence for the initial color scheme:

1. If the user has previously set a color theme it's used
2. The value you have configured for current parameter in your storybook
3. The OS color scheme preference

Once the initial color scheme has been set, subsequent reloads will use this value. To clear the cached color scheme you have to localStorage.clear() in the chrome console.

export const parameters = {
  darkMode: {
    // Set the initial theme
    current: 'light'
  }
};

Dark/Light Class

This plugin will apply a dark and light class name to the manager. This allows you to easily write dark mode aware theme overrides for the storybook UI.

You can override the classNames applied when switching between light and dark mode using the darkClass and lightClass parameters.

export const parameters = {
  darkMode: {
    darkClass: 'lights-out',
    lightClass: 'lights-on'
  }
};

You can also pass an array to apply multiple classes.

export const parameters = {
  darkMode: {
    darkClass: ['lights-out', 'foo'],
    lightClass: ['lights-on', 'bar']
  }
};

Preview class target

This plugin will apply the dark/light class to the <body> element of the preview iframe. This can be configured with the classTarget parameter. The value will be passed to a querySelector() inside the iframe.

This is useful if the <body> is styled according to a parent's class, in that case it can be set to html.

export const parameters = {
  darkMode: {
    classTarget: 'html'
  }
};

Story integration

Preview ClassName

This plugin will apply the darkClass and lightClass classes to the preview iframe if you turn on the stylePreview option.

export const parameters = {
  darkMode: {
    stylePreview: true
  }
};

React

If your components use a custom Theme provider, you can integrate it by using the provided hook.

import { useDarkMode } from 'storybook-dark-mode';
import { addDecorator } from '@storybook/react';

// your theme provider
import ThemeContext from './theme';

// create a component that uses the dark mode hook
function ThemeWrapper(props) {
  // render your custom theme provider
  return (
    <ThemeContext.Provider value={useDarkMode() ? darkTheme : defaultTheme}>
      {props.children}
    </ThemeContext.Provider>
  );
}

export const decorators = [renderStory => <ThemeWrapper>{renderStory()}</ThemeWrapper>)];

Theme Knobs

If you want to have you UI's dark mode separate from you components' dark mode, implement this global decorator:

import { themes } from '@storybook/theming';

// Add a global decorator that will render a dark background when the
// "Color Scheme" knob is set to dark
const knobDecorator = storyFn => {
  // A knob for color scheme added to every story
  const colorScheme = select('Color Scheme', ['light', 'dark'], 'light');

  // Hook your theme provider with some knobs
  return React.createElement(ThemeProvider, {
    // A knob for theme added to every story
    theme: select('Theme', Object.keys(themes), 'default'),
    colorScheme,
    children: [
      React.createElement('style', {
        dangerouslySetInnerHTML: {
          __html: `html { ${
            colorScheme === 'dark' ? 'background-color: rgb(35,35,35);' : ''
          } }`
        }
      }),
      storyFn()
    ]
  });
};

export const decorators = [knobDecorator];

Events

You can also listen for the DARK_MODE event via the addons channel.

import { addons } from '@storybook/preview-api';
import { addDecorator } from '@storybook/react';
import { DARK_MODE_EVENT_NAME } from 'storybook-dark-mode';

// your theme provider
import ThemeContext from './theme';

// get channel to listen to event emitter
const channel = addons.getChannel();

// create a component that listens for the DARK_MODE event
function ThemeWrapper(props) {
  // this example uses hook but you can also use class component as well
  const [isDark, setDark] = useState(false);

  useEffect(() => {
    // listen to DARK_MODE event
    channel.on(DARK_MODE_EVENT_NAME, setDark);
    return () => channel.off(DARK_MODE_EVENT_NAME, setDark);
  }, [channel, setDark]);

  // render your custom theme provider
  return (
    <ThemeContext.Provider value={isDark ? darkTheme : defaultTheme}>
      {props.children}
    </ThemeContext.Provider>
  );
}

export const decorators = [renderStory => <ThemeWrapper>{renderStory()}</ThemeWrapper>)];

Since in docs mode, Storybook will not display its toolbar, You can also trigger the UPDATE_DARK_MODE event via the addons channel if you want to control that option in docs mode, By editing your .storybook/preview.js.

import React from 'react';
import { addons } from '@storybook/preview-api';
import { DocsContainer } from '@storybook/addon-docs';
import { themes } from '@storybook/theming';

import {
  DARK_MODE_EVENT_NAME,
  UPDATE_DARK_MODE_EVENT_NAME
} from 'storybook-dark-mode';

const channel = addons.getChannel();

export const parameters = {
  darkMode: {
    current: 'light',
    dark: { ...themes.dark },
    light: { ...themes.light }
  },
  docs: {
    container: props => {
      const [isDark, setDark] = React.useState();

      const onChangeHandler = () => {
        channel.emit(UPDATE_DARK_MODE_EVENT_NAME);
      };

      React.useEffect(() => {
        channel.on(DARK_MODE_EVENT_NAME, setDark);
        return () => channel.removeListener(DARK_MODE_EVENT_NAME, setDark);
      }, [channel, setDark]);

      return (
        <div>
          <input type="checkbox" onChange={onChangeHandler} />
          <DocsContainer {...props} />
        </div>
      );
    }
  }
};

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Andrew Lisowski 💬 💻 🎨 📖 🤔 🚇 🚧 💡	Erik Hughes 💻	Adam Jahnke 💻	Carles Núñez 💻	Adam Dierkens 💻	Tobias Skarhed 💻 📖	Fatih Kalifa 💻
Jacob Coughenour 💻	Jeroen Zwartepoorte 📖 💻	Alex Khomenko 💻	Paul Fasola 📖	Pavel Keyzik 📖	David Richolm 📖 💻	Klaus Nygård 💻
Arturo Silva 📖 💻	Nikki Pantony 📖 💻	Ian VanSchooten 💻	Fabien 📖 💻	nilscox 💻	Jack Westbrook 💻	Ryan McHenry 📖 💻
Clay Risser 📖 💻	Beltrán Rengifo 💻	erik-d 📖	Christopher Dura 📖 💻	An Dang 💻	Zeno Jiricek 💻	Steven Sacks 📖 🚇 💻
Rohan Poojary 📖 🚇 💻	Lauri Luotola 💡 💻	Adam Gołąb 💻

This project follows the all-contributors specification. Contributions of any kind welcome!