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111 changes: 84 additions & 27 deletions
111
src/typescript/frontend/src/components/RandomEmojiBg.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,42 +1,99 @@ | ||
| "use client"; | ||
|
|
||
| import useNodeDimensions from "@hooks/use-node-dimensions"; | ||
| import { getRandomChatEmoji } from "@sdk/emoji_data"; | ||
| import { useRef } from "react"; | ||
| import { getRandomSymbolEmoji } from "@sdk/emoji_data"; | ||
| import { useEffect, useMemo, useRef, useState } from "react"; | ||
| import { Emoji } from "utils/emoji"; | ||
|
|
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| export function RandomEmojiBg() { | ||
| function OneRandomEmoji({ emoji }: { emoji: string | undefined }) { | ||
| const mt = useMemo(() => Math.random() * 100, []); | ||
| const ml = useMemo(() => Math.random() * 100, []); | ||
| const rotate = useMemo(() => Math.round(Math.random() * 50 - 25), []); | ||
| const [blur, setBlur] = useState(true); | ||
| const ref = useRef<HTMLDivElement>(null); | ||
| const { height, width } = useNodeDimensions(ref); | ||
| const nRows = Math.ceil(height / 100); | ||
| const nCols = Math.ceil(width / 100); | ||
| const rows = Array.from({ length: nCols * nRows }).map(() => getRandomChatEmoji()); | ||
| useEffect(() => { | ||
| const mouseenter = (e: MouseEvent) => { | ||
| const elements = document.elementsFromPoint(e.clientX, e.clientY); | ||
| if (elements.find((e) => e === ref.current)) { | ||
| setBlur(false); | ||
| } | ||
| }; | ||
| const mouseleave = (e: MouseEvent) => { | ||
| const elements = document.elementsFromPoint(e.clientX, e.clientY); | ||
| if (!elements.find((e) => e === ref.current)) { | ||
| setBlur(true); | ||
| } | ||
| }; | ||
|
|
||
| if (emoji) { | ||
| window.addEventListener("mousemove", mouseenter, { passive: true, capture: true }); | ||
| window.addEventListener("mousemove", mouseleave, { passive: true, capture: true }); | ||
|
|
||
| return () => { | ||
| window.removeEventListener("mousemove", mouseenter); | ||
| window.removeEventListener("mousemove", mouseleave); | ||
| }; | ||
| } | ||
| }, [emoji]); | ||
| if (!emoji) return <div></div>; | ||
| return ( | ||
| <div | ||
| ref={ref} | ||
| className="z-[-1] absolute top-0 left-0 h-[100%] w-[100%] grid" | ||
| className="flex flex-col w-min h-min text-8xl grid place-items-center select-none transition-all" | ||
| style={{ | ||
| gridTemplateRows: `repeat(${nRows}, 1fr)`, | ||
| gridTemplateColumns: `repeat(${nCols}, 1fr)`, | ||
| perspective: "20px", | ||
| marginTop: `${mt}%`, | ||
| marginLeft: `${ml}%`, | ||
| transform: `rotate(${rotate}deg)`, | ||
| filter: blur ? "blur(15px)" : "", | ||
| opacity: blur ? "0.6" : "1", | ||
| }} | ||
| > | ||
| {rows.map((row, i) => { | ||
| if (Math.random() > 1 / 20) return <div key={`random-emoji-bg-${i}`}></div>; | ||
| return ( | ||
| <div | ||
| className="flex flex-col w-min h-min text-7xl grid place-items-center blur-md hover:blur-none" | ||
| style={{ | ||
| marginTop: `${Math.random() * 100}%`, | ||
| marginLeft: `${Math.random() * 100}%`, | ||
| transform: `rotate(${Math.round((Math.random() * 50) / 2)}deg)`, | ||
| }} | ||
| key={`random-emoji-bg-${i}`} | ||
| > | ||
| {row.emoji} | ||
| </div> | ||
| ); | ||
| })} | ||
| <Emoji emojis={emoji} /> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
||
| export function RandomEmojiBg() { | ||
| const ref = useRef<HTMLDivElement>(null); | ||
| const { height, width } = useNodeDimensions(ref); | ||
| const nRows = useMemo(() => Math.ceil(height / 150), [height]); | ||
| const nCols = useMemo(() => Math.ceil(width / 150), [width]); | ||
| const rows = useMemo( | ||
| () => | ||
| Array.from({ length: nCols * nRows }).map(() => | ||
| Math.random() < 1 / 8 ? getRandomSymbolEmoji() : undefined | ||
| ), | ||
| [nRows, nCols] | ||
| ); | ||
|
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| const [mt, setMt] = useState<number>(0); | ||
|
|
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| useEffect(() => { | ||
| const fn = (e: Event) => { | ||
| setMt(((e.target as HTMLElement | null)?.scrollTop ?? 0) * -0.4); | ||
| }; | ||
|
|
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| document.addEventListener("scroll", fn, { passive: true, capture: true }); | ||
|
|
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| return () => document.removeEventListener("scroll", fn); | ||
| }, []); | ||
|
|
||
| return ( | ||
| <div className="z-[-1] absolute top-0 left-0 h-[100%] w-[100vw] overflow-hidden"> | ||
| <div | ||
| ref={ref} | ||
| className="absolute top-0 left-0 h-[300%] w-[100%] grid" | ||
| style={{ | ||
| gridTemplateRows: `repeat(${nRows}, 1fr)`, | ||
| gridTemplateColumns: `repeat(${nCols}, 1fr)`, | ||
| perspective: "20px", | ||
| top: mt, | ||
| }} | ||
| > | ||
| {rows.map((row, i) => ( | ||
| <OneRandomEmoji key={`random-emoji-bg-${i}`} emoji={row?.emoji} /> | ||
| ))} | ||
| </div> | ||
| </div> | ||
| ); | ||
| } |
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