feat: separate Tooltip from FlickerList and finetune

src/components/FlickerList.tsx

@@ -1,4 +1,4 @@
-import React from "react";
+import React, { forwardRef } from "react";
 import { css, cx } from "@emotion/css";
 import { intersperse, sleep } from "../util";
 
@@ -39,6 +39,9 @@ const opaque = css`&& { opacity: 1 }`;
 const halfVisible = css`&&& {opacity: 0.5}`;
 
 // prettier-ignore
+const invisible = css`& { opacity: 0 }`;
+
+// prettier-ignore
 const opacities = [0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45].map(each => css`&&& { opacity: ${0.5 + each} }`);
 
 const tripleBlink = async (el: HTMLElement) => {
@@ -58,12 +61,14 @@ const tripleBlink = async (el: HTMLElement) => {
 	el.classList.remove(halfVisible);
 };
 
-const Flicker: React.FC<{
-	children: React.ReactNode;
-	index: number;
-	description: string;
-	style?: React.CSSProperties;
-}> = ({ children, index, description, style }) => {
+export const Tooltip = forwardRef<
+	HTMLButtonElement,
+	{
+		children: React.ReactNode;
+		description: React.ReactNode;
+		style?: React.CSSProperties;
+	}
+>(({ children, description, style }, ref) => {
 	return (
 		<span
 			style={style}
@@ -71,45 +76,27 @@ const Flicker: React.FC<{
 				position: relative;
 
 				&&& button:focus ~ .tooltip,
-				&&& button:hover ~ .tooltip {
+				&&&:hover .tooltip {
 					opacity: 1;
+					pointer-events: all;
 				}
 
 				&&& button:focus,
-				&&& button:hover {
+				&&&:hover button {
 					opacity: 1;
 				}
 			`}>
 			<button
 				className={css`
 					border-bottom: 1px dashed var(--text-colour);
-					opacity: 0;
 					background-color: transparent;
 					border: none;
 					color: inherit;
 					position: relative;
-					font-size: 0.9rem;
+					font-size: inherit;
+					padding: 0;
 				`}
-				ref={async el => {
-					if (!el) return;
-
-					await sleep(500);
-					await sleep(300 * index);
-					el.classList.add(opaque);
-
-					await sleep(1000 + Math.random() * 1000);
-					tripleBlink(el);
-
-					while (true) {
-						await sleep(5000 + Math.random() * 10000);
-						const chosen =
-							opacities[Math.floor(Math.random() * opacities.length)];
-						el.classList.add(chosen);
-						await sleep(2000);
-						el.classList.remove(chosen);
-						tripleBlink(el);
-					}
-				}}>
+				ref={ref}>
 				{children}
 			</button>
 			<span
@@ -118,22 +105,14 @@ const Flicker: React.FC<{
 					css`
 						/* tooltip */
 						position: absolute;
-						top: 150%;
+						top: 100%;
 						left: 50%;
 						transform: translateX(-50%);
-						background: var(--card-tags);
-						color: var(--text-colour);
-						border-radius: 0.5rem;
-						padding: 0.5rem 0.8rem;
-						font-size: 0.8rem;
-						min-width: 20rem;
-						width: fit-content;
-						max-width: 80vw;
 						opacity: 0;
 						transition: opacity 0.2s;
 						user-select: none;
-						text-align: left;
 						pointer-events: none;
+						z-index: 999;
 
 						@media screen and (max-width: 65rem) {
 							position: fixed;
@@ -143,14 +122,31 @@ const Flicker: React.FC<{
 						}
 					`,
 				)}>
-				{description}
+				<span
+					className={css`
+						margin: 0.5rem;
+
+						display: block;
+						min-width: 20rem;
+						width: fit-content;
+						max-width: 80vw;
+						background: var(--card-tags);
+						color: var(--text-colour);
+						border-radius: 0.5rem;
+						padding: 0.5rem 0.8rem;
+						font-size: 0.8rem;
+						text-align: left;
+						line-height: 1.4;
+					`}>
+					{description}
+				</span>
 			</span>
 		</span>
 	);
-};
+});
 
 const FlickerList: React.FC<{
-	list: { text: string; description: string }[];
+	list: { text: string; description: React.ReactNode }[];
 	style?: React.CSSProperties;
 }> = ({ list, style }) => {
 	return (
@@ -159,13 +155,13 @@ const FlickerList: React.FC<{
 			className={css`
 				display: flex;
 				flex-wrap: wrap;
-				gap: 0.5rem;
+				gap: 0.8rem;
 				margin: 0;
 				padding: 0;
 				list-style: none;
 
-				&:has(> li button:focus) li button:not(:focus),
-				&:has(> li button:hover) li button:not(:hover) {
+				&:has(:focus) li button:not(:focus),
+				&:has(:hover) li button:not(:hover) {
 					opacity: 0.5;
 				}
 
@@ -184,9 +180,32 @@ const FlickerList: React.FC<{
 							className={css`
 								display: inline-block;
 							`}>
-							<Flicker index={index} description={item.description}>
+							<Tooltip
+								description={item.description}
+								ref={async el => {
+									if (!el) return;
+
+									el.classList.add(invisible);
+
+									await sleep(500);
+									await sleep(300 * index);
+									el.classList.add(opaque);
+
+									await sleep(1000 + Math.random() * 1000);
+									tripleBlink(el);
+
+									while (true) {
+										await sleep(5000 + Math.random() * 10000);
+										const chosen =
+											opacities[Math.floor(Math.random() * opacities.length)];
+										el.classList.add(chosen);
+										await sleep(2000);
+										el.classList.remove(chosen);
+										tripleBlink(el);
+									}
+								}}>
 								{item.text}
-							</Flicker>
+							</Tooltip>
 						</li>
 					)),
 					index => <li key={index}>·</li>,