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@alex_revin/svelte-toast

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@alex_revin/svelte-toast

Simple elegant toast notifications

0.4.1
Source
npm

Version published: 3 years ago

Maintainers: 1

Created: 3 years ago

Source

svelte-toast

Simple elegant toast notifications.

A lightweight, unopinionated and performant toast notification component for modern web frontends in very little lines of code. Compiled, it's only 15kb minified (6kb gzipped) and can be used in Vanilla JS, or as a Svelte component.

Because a demo helps better than a thousand API docs: https://zerodevx.github.io/svelte-toast/

Usage

Install the package:

$ npm i -D @zerodevx/svelte-toast

The following are exported:

SvelteToast as the toast container;
toast as the toast emitter.

Svelte

If you're using this in a Svelte app, import the toast container and place it in your app shell.

App.svelte:

<script>
import { SvelteToast } from '@zerodevx/svelte-toast'

// Optionally set default options here
const options = {
  ...
}
</script>

...
<SvelteToast {options} />

Use anywhere in your app - just import the toast emitter.

MyComponent.svelte:

<script>
import { toast } from '@zerodevx/svelte-toast'
</script>

<button on:click={() => toast.push('Hello world!')}>EMIT TOAST</button>

Vanilla JS

For any other application with a bundler, something like this should work:

import { SvelteToast, toast } from '@zerodevx/svelte-toast'

const app = new SvelteToast({
  // Set where the toast container should be appended into
  target: document.body,
  props: {
    options: {
      // Optionally set default options here
      ...
    }
  }
})

toast.push('Hello world!')

CDN

Or if you prefer to go old-school javascript and a CDN:

<head>
  ...
  <!-- Load `toast` and `SvelteToast` into global scope  -->
  <script src="https://cdn.jsdelivr.net/npm/@zerodevx/svelte-toast@0"></script>
  <!-- Register the app -->
  <script>
    const toastApp = new SvelteToast({
      // Set where the toast container should be appended into
      target: document.body,
      props: {
        options: {
          // Optionally set default options here
          ...
        }
      }
    })

    // Now you can `toast` anywhere!
    toast.push('Hello world!');
  </script>
</head>

Theming

In general, use CSS variables - the following (self-explanatory) vars are exposed:

._toastContainer {
  top: var(--toastContainerTop, 1.5rem);
  right: var(--toastContainerRight, 2rem);
  bottom: var(--toastContainerBottom, auto);
  left: var(--toastContainerLeft, auto);
}

._toastItem {
  width: var(--toastWidth, 16rem);
  height: var(--toastHeight, auto);
  min-height: var(--toastMinHeight, 3.5rem);
  margin: var(--toastMargin, 0 0 0.5rem 0);
  background: var(--toastBackground, rgba(66,66,66,0.9));
  color: var(--toastColor, #FFF);
  box-shadow: var(--toastBoxShadow, 0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06));
  border-radius: var(--toastBorderRadius, 0.125rem);
}

._toastMsg {
  padding: var(--toastMsgPadding, 0.75rem 0.5rem);
}

._toastProgressBar {
  background: var(--toastProgressBackground, rgba(33,150,243,0.75));
}

So to apply your custom theme globally, do something like:

<style>
:root {
  --toastBackground: #ABCDEF;
  --toastColor: #123456;
  --toastHeight: 300px;
  ...
}
</style>

To apply CSS overrides to a particular Toast Item (on a per-toast basis), emit the toast with options:

toast.push('Yo!', {
  theme: {
    '--toastBackground': 'cyan',
    '--toastColor': 'black',
    ...
  }
})

where theme is an object containing one or more CSS var key/value pairs.

Create Your Own Toast Actions

For convenient composing, the recommended way is to create your own common toast actions by stubbing them out. For example:

my-theme.js

import { toast } from '@zerodevx/svelte-toast'

export const success = m => toast.push(m, {
  theme: {
    '--toastBackground': 'green',
    '--toastColor': 'white',
    '--toastProgressBackground': 'darkgreen'
  }
})

export const warning = m => toast.push(m, { theme: { ... } })

export const failure = m => toast.push(m, { theme: { ... } })

Then simply import these stubs in your consuming component:

import { success, warning, failure } from './my-theme`

// do something, then
success('It works!')

Rich HTML

Toast messages can be in rich HTML too - for example:

// Definitely not spam
toast.push(`<strong>You won the jackpot!</strong><br>
  Click <a href="#" target="_blank">here</a> for details! 😛`)

Custom Fonts

In a Svelte app, the easiest way to apply custom font styles is to wrap the toast container then apply styles on the wrapper:

<style>
  .wrap {
    font-family: Roboto, sans-serif;
    font-size: 0.875rem;
    ...
  }
  .wrap :global(strong) {
    font-weight: 600;
  }
</style>

<div class="wrap">
  <SvelteToast />
</div>

In Vanilla JS, simply apply your styles to the ._toastMsg class:

._toastMsg {
  font-family: Roboto, sans-serif;
  ...
}

Options

// Default options
const options = {
  duration: 4000,       // duration of progress bar tween
  dismissable: true,    // allow dismiss with close button
  initial: 1,           // initial progress bar value
  progress: 0,          // current progress
  reversed: false,      // insert new toast to bottom of stack
  intro: { x: 256 },    // toast intro fly animation settings
  theme: {}             // css var overrides
}

Toast API

const id = toast.push(message, { options })
toast.pop(id)
toast.set(id, { options })

License

ISC

To-do

Definitely improve the docs
Create some option presets

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Package last updated on 21 Jul 2021

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