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Svelte CSF
Allows to write stories in Svelte syntax
npm install @storybook/addon-svelte-csf
Last updated 21 days ago
28.6k
Downloads per week
Readme View on GitHub

Svelte Story Format

Allows you to write your stories in .svelte syntax rather than .js syntax.

It supports:

  • args stories and stories without args ;
  • the "template" pattern for args stories, compatible with a svelte syntax ;
  • extractions of sources of the stories and compatible with addon-sources
  • decorators
  • knobs, actions, controls
  • storyshots (with a special jest transformation shipped under @storybook/addon-svelte-csf/jest-transform)

Example

Have a basic button component:

<script>
  export let rounded = true;
</script>

<style>
  .rounded {
    border-radius: 35px;
  }

  button {
    border: 3px solid;
    padding: 10px 20px;
    background-color: white;
    outline: none;
  }
</style>

<button class="button" class:rounded on:click={onClick}>
  <slot />
</button>

And a button.stories.svelte file:

<script context="module">
  import Button from './Button.svelte';

  export const meta = {
    title: "Button",
    component: Button
  }
</script>

<script>
  import { Story, Template } from '@storybook/addon-svelte-csf';

  let count = 0;
  function handleClick() {
    count += 1;
  }
</script>

<Template let:args>
  <!--👇 'on:click' allows to forward event to addon-actions  -->
  <Button {...args} 
    on:click
    on:click={handleClick}>
    You clicked: {count}
  </Button>
</Template>

<Story name="Rounded" args={{rounded: true}}/>

<Story name="Square" source args={{rounded: false}}/>

<!-- Dynamic snippet should be disabled for this story -->
<Story name="Button No Args">
  <Button>Label</Button>
</Story>

Actions are automatically registered by Storybook. To be used by this addon, you just have to forward the event (on:click in the previous example).

Getting Started

  1. npm install --save-dev @storybook/addon-svelte-csf or yarn add --dev @storybook/addon-svelte-csf
  2. In .storybook/main.js, add @storybook/addon-svelte-csf to the addons array
  3. In .storybook/main.js, add *.stories.svelte to the stories patterns

An example main.js configuration could look like this:

module.exports = {
  stories: ['../src/**/*.stories.@(js|jsx|ts|tsx|svelte)'],
  addons: [
    '@storybook/addon-links',
    '@storybook/addon-essentials',
    '@storybook/addon-interactions',
    '@storybook/addon-svelte-csf',
  ],
  framework: '@storybook/svelte-vite',
};

Version Dependencies

4.0.0

Version 4 of this addon requires at least:

  • Storybook v7
  • Svelte v4
  • Vite v4 (if using Vite)
  • @sveltejs/vite-plugin-svelte v2 (if using Vite)

If you're using Svelte v3 you can use version ^3.0.0 of this addon instead.

3.0.0

Version 3 of this addon requires at least Storybook v7.

If you're using Storybook between v6.4.20 and v7.0.0, you should instead use version ^2.0.0 of this addon.

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