update versi docubook
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324
components/ui/icon-cloud.tsx
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324
components/ui/icon-cloud.tsx
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"use client";
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import React, { useEffect, useRef, useState } from "react";
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import { renderToString } from "react-dom/server";
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interface Icon {
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x: number;
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y: number;
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z: number;
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scale: number;
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opacity: number;
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id: number;
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}
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interface IconCloudProps {
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icons?: React.ReactNode[];
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images?: string[];
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}
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function easeOutCubic(t: number): number {
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return 1 - Math.pow(1 - t, 3);
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}
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export function IconCloud({ icons, images }: IconCloudProps) {
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const canvasRef = useRef<HTMLCanvasElement>(null);
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const [iconPositions, setIconPositions] = useState<Icon[]>([]);
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const [rotation, setRotation] = useState({ x: 0, y: 0 });
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const [isDragging, setIsDragging] = useState(false);
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const [lastMousePos, setLastMousePos] = useState({ x: 0, y: 0 });
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const [mousePos, setMousePos] = useState({ x: 0, y: 0 });
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const [targetRotation, setTargetRotation] = useState<{
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x: number;
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y: number;
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startX: number;
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startY: number;
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distance: number;
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startTime: number;
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duration: number;
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} | null>(null);
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const animationFrameRef = useRef<number>();
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const rotationRef = useRef(rotation);
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const iconCanvasesRef = useRef<HTMLCanvasElement[]>([]);
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const imagesLoadedRef = useRef<boolean[]>([]);
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// Create icon canvases once when icons/images change
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useEffect(() => {
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if (!icons && !images) return;
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const items = icons || images || [];
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imagesLoadedRef.current = new Array(items.length).fill(false);
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const newIconCanvases = items.map((item, index) => {
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const offscreen = document.createElement("canvas");
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offscreen.width = 40;
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offscreen.height = 40;
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const offCtx = offscreen.getContext("2d");
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if (offCtx) {
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if (images) {
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// Handle image URLs directly
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const img = new Image();
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img.crossOrigin = "anonymous";
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img.src = items[index] as string;
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img.onload = () => {
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offCtx.clearRect(0, 0, offscreen.width, offscreen.height);
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// Create circular clipping path
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offCtx.beginPath();
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offCtx.arc(20, 20, 20, 0, Math.PI * 2);
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offCtx.closePath();
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offCtx.clip();
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// Draw the image
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offCtx.drawImage(img, 0, 0, 40, 40);
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imagesLoadedRef.current[index] = true;
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};
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} else {
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// Handle SVG icons
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offCtx.scale(0.4, 0.4);
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const svgString = renderToString(item as React.ReactElement);
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const img = new Image();
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img.src = "data:image/svg+xml;base64," + btoa(svgString);
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img.onload = () => {
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offCtx.clearRect(0, 0, offscreen.width, offscreen.height);
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offCtx.drawImage(img, 0, 0);
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imagesLoadedRef.current[index] = true;
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};
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}
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}
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return offscreen;
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});
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iconCanvasesRef.current = newIconCanvases;
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}, [icons, images]);
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// Generate initial icon positions on a sphere
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useEffect(() => {
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const items = icons || images || [];
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const newIcons: Icon[] = [];
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const numIcons = items.length || 20;
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// Fibonacci sphere parameters
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const offset = 2 / numIcons;
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const increment = Math.PI * (3 - Math.sqrt(5));
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for (let i = 0; i < numIcons; i++) {
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const y = i * offset - 1 + offset / 2;
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const r = Math.sqrt(1 - y * y);
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const phi = i * increment;
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const x = Math.cos(phi) * r;
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const z = Math.sin(phi) * r;
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newIcons.push({
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x: x * 100,
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y: y * 100,
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z: z * 100,
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scale: 1,
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opacity: 1,
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id: i,
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});
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}
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setIconPositions(newIcons);
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}, [icons, images]);
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// Handle mouse events
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const handleMouseDown = (e: React.MouseEvent<HTMLCanvasElement>) => {
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const rect = canvasRef.current?.getBoundingClientRect();
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if (!rect || !canvasRef.current) return;
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const x = e.clientX - rect.left;
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const y = e.clientY - rect.top;
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const ctx = canvasRef.current.getContext("2d");
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if (!ctx) return;
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iconPositions.forEach((icon) => {
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const cosX = Math.cos(rotationRef.current.x);
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const sinX = Math.sin(rotationRef.current.x);
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const cosY = Math.cos(rotationRef.current.y);
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const sinY = Math.sin(rotationRef.current.y);
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const rotatedX = icon.x * cosY - icon.z * sinY;
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const rotatedZ = icon.x * sinY + icon.z * cosY;
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const rotatedY = icon.y * cosX + rotatedZ * sinX;
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const screenX = canvasRef.current!.width / 2 + rotatedX;
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const screenY = canvasRef.current!.height / 2 + rotatedY;
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const scale = (rotatedZ + 200) / 300;
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const radius = 20 * scale;
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const dx = x - screenX;
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const dy = y - screenY;
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if (dx * dx + dy * dy < radius * radius) {
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const targetX = -Math.atan2(
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icon.y,
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Math.sqrt(icon.x * icon.x + icon.z * icon.z),
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);
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const targetY = Math.atan2(icon.x, icon.z);
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const currentX = rotationRef.current.x;
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const currentY = rotationRef.current.y;
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const distance = Math.sqrt(
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Math.pow(targetX - currentX, 2) + Math.pow(targetY - currentY, 2),
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);
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const duration = Math.min(2000, Math.max(800, distance * 1000));
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setTargetRotation({
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x: targetX,
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y: targetY,
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startX: currentX,
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startY: currentY,
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distance,
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startTime: performance.now(),
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duration,
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});
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return;
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}
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});
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setIsDragging(true);
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setLastMousePos({ x: e.clientX, y: e.clientY });
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};
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const handleMouseMove = (e: React.MouseEvent<HTMLCanvasElement>) => {
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const rect = canvasRef.current?.getBoundingClientRect();
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if (rect) {
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const x = e.clientX - rect.left;
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const y = e.clientY - rect.top;
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setMousePos({ x, y });
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}
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if (isDragging) {
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const deltaX = e.clientX - lastMousePos.x;
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const deltaY = e.clientY - lastMousePos.y;
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rotationRef.current = {
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x: rotationRef.current.x + deltaY * 0.002,
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y: rotationRef.current.y + deltaX * 0.002,
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};
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setLastMousePos({ x: e.clientX, y: e.clientY });
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}
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};
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const handleMouseUp = () => {
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setIsDragging(false);
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};
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// Animation and rendering
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useEffect(() => {
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const canvas = canvasRef.current;
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const ctx = canvas?.getContext("2d");
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if (!canvas || !ctx) return;
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const animate = () => {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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const centerX = canvas.width / 2;
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const centerY = canvas.height / 2;
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const maxDistance = Math.sqrt(centerX * centerX + centerY * centerY);
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const dx = mousePos.x - centerX;
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const dy = mousePos.y - centerY;
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const distance = Math.sqrt(dx * dx + dy * dy);
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const speed = 0.003 + (distance / maxDistance) * 0.01;
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if (targetRotation) {
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const elapsed = performance.now() - targetRotation.startTime;
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const progress = Math.min(1, elapsed / targetRotation.duration);
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const easedProgress = easeOutCubic(progress);
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rotationRef.current = {
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x:
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targetRotation.startX +
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(targetRotation.x - targetRotation.startX) * easedProgress,
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y:
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targetRotation.startY +
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(targetRotation.y - targetRotation.startY) * easedProgress,
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};
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if (progress >= 1) {
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setTargetRotation(null);
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}
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} else if (!isDragging) {
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rotationRef.current = {
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x: rotationRef.current.x + (dy / canvas.height) * speed,
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y: rotationRef.current.y + (dx / canvas.width) * speed,
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};
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}
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iconPositions.forEach((icon, index) => {
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const cosX = Math.cos(rotationRef.current.x);
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const sinX = Math.sin(rotationRef.current.x);
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const cosY = Math.cos(rotationRef.current.y);
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const sinY = Math.sin(rotationRef.current.y);
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const rotatedX = icon.x * cosY - icon.z * sinY;
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const rotatedZ = icon.x * sinY + icon.z * cosY;
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const rotatedY = icon.y * cosX + rotatedZ * sinX;
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const scale = (rotatedZ + 200) / 300;
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const opacity = Math.max(0.2, Math.min(1, (rotatedZ + 150) / 200));
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ctx.save();
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ctx.translate(
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canvas.width / 2 + rotatedX,
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canvas.height / 2 + rotatedY,
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);
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ctx.scale(scale, scale);
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ctx.globalAlpha = opacity;
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if (icons || images) {
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// Only try to render icons/images if they exist
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if (
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iconCanvasesRef.current[index] &&
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imagesLoadedRef.current[index]
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) {
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ctx.drawImage(iconCanvasesRef.current[index], -20, -20, 40, 40);
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}
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} else {
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// Show numbered circles if no icons/images are provided
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ctx.beginPath();
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ctx.arc(0, 0, 20, 0, Math.PI * 2);
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ctx.fillStyle = "#4444ff";
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ctx.fill();
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ctx.fillStyle = "white";
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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ctx.font = "16px Arial";
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ctx.fillText(`${icon.id + 1}`, 0, 0);
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}
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ctx.restore();
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});
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animationFrameRef.current = requestAnimationFrame(animate);
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};
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animate();
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return () => {
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if (animationFrameRef.current) {
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cancelAnimationFrame(animationFrameRef.current);
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}
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};
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}, [icons, images, iconPositions, isDragging, mousePos, targetRotation]);
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return (
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<canvas
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ref={canvasRef}
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width={400}
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height={400}
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onMouseDown={handleMouseDown}
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onMouseMove={handleMouseMove}
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onMouseUp={handleMouseUp}
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onMouseLeave={handleMouseUp}
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className="rounded-full"
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aria-label="Interactive 3D Icon Cloud"
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role="img"
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/>
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);
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}
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