Example Design System

This design system is based on the NL Design System architecture.

For more info about the NL Design System and learn about things happening in our open source community, join the #nl-design-system Slack via praatmee.codefor.nl!

---

✂ In your own repository: remove the "Getting started" section below!

---

Getting started with the NL Design System template

This template contains all relevant linting rules used by the NL Design System repository. It also contains the Storybook setup with two example components and two example general documentation page. Feel free to add or modify those documentation pages and use the example components as an initial template to create your own storybook components.

Install prerequisites

You need to have the following tools installed to run Storybook locally:

• Git
• Node.js and npm
• pnpm, npm install -g pnpm

Customize organization settings

1. Choose a prefix for your organisation. For example: the main NL Design System uses nl-, The Hague uses denhaag-, and you can choose something unique for you to use.
2. Modify .stylelintrc.json by replacing the prefix example with the prefix you have chosen, in the following rules: custom-property-pattern, selector-class-pattern, keyframes-name-pattern, scss/dollar-variable-pattern and scss/percent-placeholder-pattern.
3. Choose and register an npm organisation on npmjs.com, if you haven't already. This is very important to keep your project secure. The core NL Design System uses @nl-design-system/, and you can choose something for yourself. This prevents others from adding their code to your teams codebase.
4. Modify all package.json files to use your npm organisation scope. Don't forget the locally linked packages under devDependencies.
5. Modify .npmpackagejsonlintrc.json to require your organisation scope in package names, by configuring the valid-values-name-scope property.
6. Modify the imports in /packages/storybook/config/preview.tsx and packages/web-components-stencil/src/button/index.scss to use your prefix.

Run storybook

• Install dependencies: pnpm install
• Run storybook: npm run storybook

Change the theme of your storybook to match your brand

In .storybook/customTheme.js the theme used by NL Design System can be found. By changing those properties one can style the storybook to match ones brand. Checkout https://storybook.js.org/docs/react/configure/theming to learn more about all the possible configurations to brand this storybook.

Adding UX and other documentation without a component implementation

1. In src/demo-empty-component an example story of a documentation first (or documentation only) component can be found.
2. Copy this folder
3. Rename to match your component
   • The folder
   • The x.stories.mdx to component-name.stories.mdx
   • The title of the Meta component in component-name.stories.mdx
4. Add the UX guidelines inREADME.md
5. Optionally add the component specific accessibility or content guidelines in docs/accessibility-guidelines or docs/content-guidelines.
6. Optionally add the Figma component in component-name.stories.mdx by adding part of the Figma url to the Figma component <Figma title="Link" url="file/..." />

Adding design tokens

Add global tokens to /brand.css. Add tags to make them appear in the Storybook Design token addon. For example @tokens Colors and @presenter Color. See https://storybook.js.org/addons/@tommyem/storybook-design-token for more details.

Adding the component implementation to storybook

In src/demo-link-component an example story and web-component can be found. All steps below are represented in this demo-link.stories.mdx example. To add a component implementation to storybook, we use the <component-name>-stories.mdx which already contains the documentation pages or create one with placeholder documentation by following step 1-3 from the Adding UX and other documentation without a component implementation chapter.

• Create a component template function that takes variable arguments. If an argument might contain childnodes, use the sanatize package to prevent unsafe content and injections. Place this Template function above the Meta component
• Declare a story for each component variation and bind the template
• Declare the possible inputs, with types and a description in the argTypes property of the Meta component in stories.mdx.
• Add an Argstable component in your stories.mdx
• Optionally add a different status to the Meta parameters. The options and colors can be found in storybook/config/preview.tsx

---

✂ In your own repository: remove the "Getting started" section above!

---

Code of Conduct

We pledge to act and interact in ways that contribute to an open, welcoming, diverse, inclusive, and healthy community. Read our Code of Conduct if you haven't already.

License

This project is free and open-source software licensed under the European Union Public License (EUPL) v1.2. Documentation is licensed as Creative Commons Zero 1.0 Universal (CC0-1.0)

For information about private assets in this repository, please carefully read the NOTICE file.