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<script lang="ts">
import { onDestroy, onMount } from 'svelte';
let carousel: HTMLDivElement;
let carouselContent: HTMLDivElement;
let carouselDots: HTMLDivElement;
let currentIndex = 0;
let dots = 0;
let trigger = 1;
let className = '';
export { className as class };
let destroyCb = () => {};
onDestroy(() => destroyCb());
onMount(async () => {
dots = carouselContent.children.length;
for (let i = 0; i < dots; i++) {
carouselContent.children.item(i)?.addEventListener('click', (item) => (currentIndex = i));
}
// So the dots have time to populate
setTimeout(() => trigger++);
window.addEventListener('keydown', (key) => {
switch (key.code) {
case 'ArrowRight':
currentIndex = (currentIndex + 1) % dots;
key.stopPropagation();
break;
case 'ArrowLeft':
currentIndex = (currentIndex + dots - 1) % dots;
key.stopPropagation();
break;
}
});
const TinyGesture = (await import('tinygesture')).default;
const gesture = new TinyGesture(carousel);
gesture.on('swipeleft', () => (currentIndex = (currentIndex + 1) % dots));
gesture.on('swiperight', () => (currentIndex = (currentIndex + dots - 1) % dots));
destroyCb = () => {
gesture.off('swiperight');
gesture.off('swipeleft');
gesture.destroy();
};
});
$: if (carouselContent && dots && trigger) {
if (window.innerWidth >= 640) {
carouselContent.style.marginLeft = `${25 - currentIndex * 50}%`;
} else {
carouselContent.style.marginLeft = `${5 - currentIndex * 90}%`;
}
for (let i = 0; i < dots; i++) {
if (i === currentIndex) {
carouselDots.children.item(i)?.classList.add('carousel-dot-active');
carouselContent.children.item(i)?.classList.add('carousel-item-active');
} else {
carouselDots.children.item(i)?.classList.remove('carousel-dot-active');
carouselContent.children.item(i)?.classList.remove('carousel-item-active');
}
}
}
</script>
<div class="flex flex-col overflow-x-hidden {className}" {...$$restProps} bind:this={carousel}>
<div
class="flex flex-row w-full carousel-content"
style="height: calc(100% - 3rem)"
bind:this={carouselContent}
>
<slot />
</div>
<div
style="height: 1rem; margin-top: 2rem"
class="flex justify-center carousel-dots"
bind:this={carouselDots}
>
{#each Array(dots) as dot, i}
<button
style="width: 1rem; height: 1rem"
class="rounded-full mx-1 bg-sunray"
on:click={() => (currentIndex = i)}
/>
{/each}
</div>
</div>
<style>
.carousel-content {
margin-left: -25%;
transition-property: margin-left;
transition-duration: 400ms;
}
:global(.carousel-content > *) {
width: 50%;
min-width: 50%;
max-height: 100%;
transition-property: transform, opacity;
transition-duration: 400ms;
}
@media (max-width: 639.9px) {
:global(.carousel-content > *) {
width: 90%;
min-width: 90%;
max-height: 100%;
transition-property: transform, opacity;
transition-duration: 400ms;
}
}
:global(.carousel-content > :not(.carousel-item-active)) {
transform: scale(0.7);
opacity: 0.8;
cursor: pointer;
}
.carousel-dots > * {
transition-property: transform, opacity;
transition-duration: 400ms;
}
.carousel-dots > :not(.carousel-dot-active) {
transform: scale(0.7);
opacity: 0.8;
cursor: pointer;
}
</style>
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