Created
November 24, 2019 07:17
-
-
Save TahaSh/881f5a2280e163f8d02b5e33c26bc522 to your computer and use it in GitHub Desktop.
Loading bar component for Svelte
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<script> | |
import { stores } from '@sapper/app' | |
import { fade } from 'svelte/transition' | |
const { preloading } = stores() | |
const step = 5 | |
const duration = 400 | |
let show = false | |
let filled = 0 | |
let interval | |
$: { | |
if ($preloading && !show) { | |
show = true | |
filled = 0.5 | |
interval = setInterval(() => { | |
if (filled < 80) { | |
filled += step | |
} else if (filled < 90) { | |
filled += step * 0.1 | |
} else { | |
clearInterval(interval) | |
interval = null | |
} | |
}, duration + 100) | |
} else if (!$preloading && show) { | |
if (interval) { | |
clearInterval(interval) | |
interval = null | |
} | |
filled = 100 | |
setTimeout(() => { | |
show = false | |
filled = 0 | |
}, duration + 300) | |
} | |
} | |
</script> | |
<div class="loading-bar"> | |
{#if show} | |
<div | |
transition:fade | |
class="fill" | |
style={` | |
transform: translate3d(${-100 + filled}%, 0, 0); | |
transition: transform ${duration}ms ease; | |
`} | |
></div> | |
{/if} | |
</div> | |
<style> | |
.loading-bar { | |
position: fixed; | |
top: 0; | |
left: 0; | |
width: 100%; | |
height: 4px; | |
} | |
.loading-bar .fill { | |
/* The color of the loading bar */ | |
background: hsl(15, 100%, 50%); | |
height: 100%; | |
transform: translate3d(-100%, 0, 0); | |
backface-visibility: hidden; | |
perspective: 1000; | |
} | |
</style> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment