From d01162d603cd8ff52e0419f50cdb13b789702645 Mon Sep 17 00:00:00 2001
From: Fuwn <contact@fuwn.me>
Date: Tue, 16 Apr 2024 15:36:42 -0700
Subject: feat(tooltip): sliding tooltip

---
 src/lib/List/Anime/Tooltip.svelte | 175 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 src/lib/List/Anime/Tooltip.svelte

(limited to 'src/lib/List/Anime/Tooltip.svelte')

diff --git a/src/lib/List/Anime/Tooltip.svelte b/src/lib/List/Anime/Tooltip.svelte
new file mode 100644
index 00000000..428943a0
--- /dev/null
+++ b/src/lib/List/Anime/Tooltip.svelte
@@ -0,0 +1,175 @@
+<script lang="ts">
+	import tooltipPosition from '$stores/tooltipPosition';
+	import { fade } from 'svelte/transition';
+
+	export let id: string;
+	export let tooltipPin: string | undefined = undefined;
+	export let content: string;
+	export let disable: boolean = false;
+
+	let tooltipDiv: HTMLDivElement | null = null;
+	const offset = 10;
+	const tooltipTransitionTime = 200;
+	const tooltipHideDelay = 10;
+	const debounceDelay = 100;
+	const tooltipOpacityTransitionTime = 200;
+	let hideTimeout: number | null = null;
+	let debounceTimer: number | null = null;
+	let opacity = 0;
+
+	const createTooltip = () => {
+		if (!tooltipDiv) {
+			tooltipDiv = document.createElement('div');
+
+			tooltipDiv.style.position = 'absolute';
+			tooltipDiv.style.zIndex = '1000';
+			opacity = 0;
+			tooltipDiv.style.pointerEvents = 'none';
+			tooltipDiv.style.whiteSpace = 'nowrap';
+			tooltipDiv.style.zIndex = '1000';
+
+			tooltipDiv.classList.add('card');
+			tooltipDiv.classList.add('card-small');
+			document.body.appendChild(tooltipDiv);
+		}
+	};
+
+	const updateTooltipPosition = (x: number, y: number) => {
+		if (tooltipDiv) {
+			if (tooltipPin) {
+				const pinnedElement = document.getElementById(tooltipPin);
+
+				if (pinnedElement) {
+					const rect = pinnedElement.getBoundingClientRect();
+					const tooltipWidth = tooltipDiv.offsetWidth;
+					const tooltipHeight = tooltipDiv.offsetHeight;
+					let top = rect.top - tooltipHeight - offset;
+					let left = rect.left + rect.width / 2 - tooltipWidth / 2;
+
+					if (left < 0) left = offset;
+					if (left + tooltipWidth > window.innerWidth)
+						left = window.innerWidth - tooltipWidth - offset;
+					if (top < 0) top = rect.top + rect.height + offset;
+
+					tooltipPosition.set({
+						x: left,
+						y: top + window.scrollY
+					});
+
+					return;
+				}
+			}
+
+			const tooltipWidth = tooltipDiv.offsetWidth;
+			const tooltipHeight = tooltipDiv.offsetHeight;
+			let top = y - tooltipHeight - offset;
+			let left = x - tooltipWidth / 2;
+
+			if (left < 0) left = offset;
+			if (left + tooltipWidth > window.innerWidth) left = window.innerWidth - tooltipWidth - offset;
+			if (top < 0) top = y + offset;
+
+			tooltipPosition.set({
+				x: left,
+				y: top
+			});
+		}
+	};
+
+	const showTooltip = (content: string, x: number, y: number) => {
+		if (hideTimeout !== null) {
+			clearTimeout(hideTimeout);
+
+			hideTimeout = null;
+		}
+
+		createTooltip();
+
+		if (tooltipDiv) {
+			tooltipDiv.innerHTML = content.replace(/\n/g, '<br>');
+
+			updateTooltipPosition(x, y);
+			setTimeout(() => {
+				if (tooltipDiv) {
+					opacity = 1;
+				}
+			}, 10);
+		}
+	};
+
+	const hideTooltip = () => {
+		setTimeout(() => {
+			if (tooltipDiv) {
+				opacity = 0;
+
+				hideTimeout = window.setTimeout(() => {
+					if (tooltipDiv) {
+						document.body.removeChild(tooltipDiv);
+						tooltipDiv = null;
+					}
+				}, tooltipTransitionTime);
+			}
+		}, tooltipHideDelay);
+	};
+
+	const handleMouseEnter = (event: MouseEvent) => {
+		if (disable) return;
+
+		if (hideTimeout !== null) {
+			clearTimeout(hideTimeout);
+
+			hideTimeout = null;
+		}
+
+		if (!tooltipDiv) showTooltip(content, event.pageX, event.pageY);
+	};
+
+	const handleMouseMove = (event: MouseEvent) => {
+		if (debounceTimer !== null) clearTimeout(debounceTimer);
+
+		debounceTimer = window.setTimeout(() => {
+			if (tooltipDiv && opacity === 1) updateTooltipPosition(event.pageX, event.pageY);
+		}, debounceDelay);
+	};
+
+	const handleMouseLeave = () => {
+		hideTooltip();
+	};
+</script>
+
+<div
+	{id}
+	data-tooltippin={tooltipPin}
+	on:mouseenter={handleMouseEnter}
+	on:mousemove={handleMouseMove}
+	on:mouseleave={handleMouseLeave}
+	role="tooltip"
+>
+	<slot />
+</div>
+
+{#if tooltipDiv}
+	<div
+		class="tooltip card card-small"
+		style={`left: ${$tooltipPosition.x}px; top: ${$tooltipPosition.y}px; opacity: ${opacity}; --tooltip-opacity-transition-time: ${tooltipOpacityTransitionTime}ms;`}
+	>
+		{#key content}
+			<span
+				in:fade={{ duration: tooltipTransitionTime }}
+				out:fade={{ duration: tooltipTransitionTime }}
+			>
+				{@html content}
+			</span>
+		{/key}
+	</div>
+{/if}
+
+<style>
+	.tooltip {
+		position: absolute;
+		z-index: 1000;
+		transition: opacity var(--tooltip-opacity-transition-time) ease-in-out;
+		pointer-events: none;
+		white-space: nowrap;
+	}
+</style>
-- 
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