-
Notifications
You must be signed in to change notification settings - Fork 22
/
Image.svelte
48 lines (37 loc) · 979 Bytes
/
Image.svelte
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
<script lang="ts">
import { dev } from '$app/environment';
export let src: string;
export let alt: string;
export let fullBleed: boolean | undefined = undefined;
export let formats: string[] = ['avif', 'webp', 'png'];
export let widths: string[] | undefined = undefined;
$: fileName = src.split('.')[0];
function buildSrcset() {
if (dev) return;
let srcset = '';
if (widths) {
for (let i = 0; i < widths.length; i++) {
srcset += `${fileName}-${widths[i]}.${formats[0]} ${widths[i]}w`;
if (i < widths.length - 1) {
srcset += ', ';
}
}
} else {
for (let i = 0; i < formats.length; i++) {
srcset += `${fileName}.${formats[i]}`;
if (i < formats.length - 1) {
srcset += ', ';
}
}
}
return srcset;
}
</script>
<img srcset={buildSrcset()} {src} {alt} loading="lazy" decoding="async" class:full-bleed={fullBleed} />
<style lang="scss">
img {
width: 100%;
height: 100%;
object-fit: contain;
}
</style>