Storybook

Times Components showcases its UI components using storybook:

Storybook is a development environment for UI components. It allows you to browse a component library, view the different states of each component, and interactively develop and test components.

Each package has one or more my-component.stories.js file. The .stories.js file name is the hook that the CLI uses to load these stories into storybook.

my-component.stories.js

import { showcaseConverter } from "@times-components/storybook";
import showcase from "./my-component.showcase";

showcaseConverter(module, showcase);

This package introduces the concepts of showcases, rather than stories. Showcases provide a consistent and simple API for a developer to create stories. The idea behind introducing the showcase concept was to help decouple Times Components from storybook. Storybook version bumps in particular were playing havoc with our CI, and managing these across storybook, storybook/addon-actions and storybook/addon-knobs was becoming painful. Each package has a my-component.showcase.js file which exports a showcase object.

Showcase API

• name - a "/" delineated string describing the location of the showcase in the component library. Each "/" moves the showcase one level deeper in the component library tree
• children - an array of objects containing showcases

Showcase Object

• type: string: story | decorator
• name: string
• platform: string: web
• component: function: The method can take optional arguments knobs and decorators

my-component.showcase.js

export default {
  name: "Primitives/MyComponent",
  children: [
    {
      type: "story",
      name: "The name of my showcase",
      platform: "web",
      component: (knobs, decorators) => (
        <MyComponent />
      )
    }
  ]
};

Knobs

storybook/addon-knobs provides methods that allow users of the component library to amend props. This reduces the number of stories, and introduces a level of interactivity that allows users to fiddle with UI and test various aspects of components for themselves.

Decorators

The showcase package provides some custom decorators:

• CenteredDecorator - centres the wrapped component
• BarSpacingDecorator - provides some padding above the wrapped component
• LateralSpacingDecorator - provides some padding on the left and right of the wrapped component
• WhiteBgColorDecorator - puts the wrapped component on a white background for easier visual representation

Contributing

Please read CONTRIBUTING.md before contributing to this package

Running the code

Please see our main README.md to get the project running locally

Development

The code can be formatted and linted in accordance with the agreed standards.

yarn fmt
yarn lint

Testing

This package uses yarn (latest) to run unit tests on each platform with jest.

yarn test:web