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path: root/src/lib/Loading/Grid.svelte
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<script lang="ts">
	export let colour = 'var(--fg)';
</script>

<div class="grid" style={`--loader-colour: ${colour};`}>
	{#each Array.from({ length: 9 }) as _}
		<div />
	{/each}
</div>

<style lang="scss">
	.grid {
		display: inline-block;
		position: relative;
		width: 64px;
		height: 64px;

		div {
			position: absolute;
			width: 13px;
			height: 13px;
			border-radius: 50%;
			background: var(--loader-colour);
			animation: grid 1.2s linear infinite;
		}
	}

	@function column($i) {
		@if $i % 3 == 0 {
			@return 3;
		} @else {
			@return $i % 3;
		}
	}

	@for $i from 1 through 9 {
		.grid div:nth-child(#{$i}) {
			$row: ceil(calc($i / 3));
			$column: column($i);

			top: 6px + ($row - 1) * 20px;
			left: 6px + ($column - 1) * 20px;
			animation-delay: -0.4s * ($i - 1);
		}
	}

	@keyframes grid {
		0%,
		100% {
			opacity: 1;
		}

		50% {
			opacity: 0.5;
		}
	}
</style>