Svelte Utils

Handy Svelte components for the whole family

TL;DR:

• MIT Licensed Simple Svelte Components
• Live demo of components: https://svelte-utils.netlify.com/
• Example code: ./src/App.svelte

Included:

• Button
• Form
• Spinner
• Sprite
• StackRouter

To override all Svelte Utils default colors, set the following with CSS:

.svelte-utils-theme-background {
    background-color: red;
}
.svelte-utils-theme-color {
    color: white;
}

Installation

npm i svelte-utils

import { Button, Form, Spinner } from 'svelte-utils';

Button

<Button
    onClick={buttonHandler}
    icon="/lock.svg"
    backgroundColor="red">
    Confirm
</Button>

Common use parameters

• onClick: (event) => Promise
• icon?: path to image
• backgroundColor?: hex, rgba, etc.

Control state with

• disabled?: boolean
• pending?: boolean
• success?: boolean
• error?: boolean

Form

<Form
    onDone={async function() {}}
    buttonIcon="/lock.svg"
    handleSubmit={async function(data, ev) {
        console.log(data); // { name: 'Joe Blogs' }
        return postJSON(`/api/save`, data);
    }}
    buttonText="Submit Form">
    <div class="title">This is a form title</div>
    <div class="description">It looks like you're new here</div>
    <div class="input">
        <label for="name">Name</label>
        <input
            type="text"
            id="name"
            name="name"
            placeholder="Joe Bloggs"
            required />
    </div>
</Form>

Automatic styling will be applied for:

• Form > .title
• Form > .description
• Form > label
• Form > div.input *

Common use parameters

• handleSubmit: (data, ev) => Promise
• onDone: (handleSubmitRes) => Promise
• buttonText?: string
• <slot />

The first argument for handleSubmit will be a Key-Value-Store (object) with keys based on the input name attribute.

For input[type=checkbox] elements, the value is an array of checked values

Rejected promises should contain a message property which will be shown on the form

Other parameters

• buttonIcon?: string
• afterButtonText?: string
• disabled?: boolean

Spinner

<Spinner black={true} size="50px" />

Parameters

• black?: boolean (default is false - will display a white spinner)
• size?: px value

Sprite

<Sprite
    spritesheetUrl="https://i.stack.imgur.com/wFCJb.png"
    spriteWidth="32"
    spriteHeight="32"
    width="50"
    height="50"
    rowLength="6"
    index={spriteIndex} />

Parameters

• spritesheetUrl: string
• index?: number (sprite index)
• spriteWidth: number (pixel width of sprite on spritesheet)
• spriteHeight: number (pixel height of sprite on spritesheet)
• width?: number (width to scale sprite to)
• height?: number (height to scale sprite to)
• rowLength?: number (number of sprites per row on spritesheet)

Advanced Parameters

• getSpritePos?: (spriteIndex) => { x: string, y: string }

StackRouter

<StackRouter
    onReady={routerReady}
    defaultRoute={routes[0]}
    bind:stack={routerStack} />

Parameters

• onReady: (router: { pushRoute, popRoute, replaceRoute }) => void
• defaultRoute: Route ({ component: SvelteComponent, props: { name: 'Joe' }})
• stack?: Route[]

Contributing

Make a PR, I won't bite 💖

Also see

• Svelte London Meetup - https://meetup.com/svelte
• News Hackathons - https://HackThePress.org
• Political Hackathons - https://ToryTechs.uk
• Joe Reeve - https://SimmsReeve.com

License - MIT

./LICENSE