optimize view persistence & header

src/src/components/background/index.tsx

@@ -44,7 +44,7 @@ const Background: React.FC<BackgroundProps> = ({
   const gridRef = useRef<Grid>();
   const animationFrameRef = useRef<number>();
   const frameCount = useRef(0);
-  const isInitialized = useRef(false);
+  const resizeTimeoutRef = useRef<NodeJS.Timeout>();
 
   const randomColor = (): [number, number, number] => {
     const colors = [
@@ -90,6 +90,7 @@ const Background: React.FC<BackgroundProps> = ({
     const grid = { cells, cols, rows, offsetX, offsetY };
     computeNextState(grid);
     
+    // Initialize cells with staggered animation
     for (let i = 0; i < cols; i++) {
       for (let j = 0; j < rows; j++) {
         const cell = cells[i][j];
@@ -202,89 +203,55 @@ const Background: React.FC<BackgroundProps> = ({
     }
   };
 
+  const setupCanvas = (canvas: HTMLCanvasElement, width: number, height: number) => {
+    const ctx = canvas.getContext('2d');
+    if (!ctx) return;
+
+    const dpr = window.devicePixelRatio || 1;
+    canvas.width = width * dpr;
+    canvas.height = height * dpr;
+    ctx.scale(dpr, dpr);
+    
+    canvas.style.width = `${width}px`;
+    canvas.style.height = `${height}px`;
+    
+    return ctx;
+  };
+
   useEffect(() => {
     const canvas = canvasRef.current;
     if (!canvas) return;
 
-    const ctx = canvas.getContext('2d');
+    const handleResize = () => {
+      // Clear the previous timeout
+      if (resizeTimeoutRef.current) {
+        clearTimeout(resizeTimeoutRef.current);
+      }
+
+      // Debounce resize event
+      resizeTimeoutRef.current = setTimeout(() => {
+        const displayWidth = layout === 'index' ? window.innerWidth : SIDEBAR_WIDTH;
+        const displayHeight = window.innerHeight;
+
+        const ctx = setupCanvas(canvas, displayWidth, displayHeight);
+        if (!ctx) return;
+
+        // Reset animation state
+        frameCount.current = 0;
+        
+        // Initialize new grid with new dimensions
+        gridRef.current = initGrid(displayWidth, displayHeight);
+      }, 250); // Debounce time of 250ms
+    };
+
+    // Initial setup
+    const displayWidth = layout === 'index' ? window.innerWidth : SIDEBAR_WIDTH;
+    const displayHeight = window.innerHeight;
+    
+    const ctx = setupCanvas(canvas, displayWidth, displayHeight);
     if (!ctx) return;
 
-    const resizeCanvas = () => {
-      const dpr = window.devicePixelRatio || 1;
-      let displayWidth: number;
-      let displayHeight: number;
-
-      if (layout === 'index') {
-        displayWidth = window.innerWidth;
-        displayHeight = window.innerHeight;
-      } else {
-        displayWidth = SIDEBAR_WIDTH;
-        displayHeight = window.innerHeight;
-      }
-      
-      canvas.width = displayWidth * dpr;
-      canvas.height = displayHeight * dpr;
-      ctx.scale(dpr, dpr);
-      
-      canvas.style.width = `${displayWidth}px`;
-      canvas.style.height = `${displayHeight}px`;
-      
-      if (!isInitialized.current) {
-        gridRef.current = initGrid(displayWidth, displayHeight);
-        isInitialized.current = true;
-      } else if (gridRef.current) {
-        const { cols, rows, offsetX, offsetY } = calculateGridDimensions(displayWidth, displayHeight);
-        gridRef.current.cols = cols;
-        gridRef.current.rows = rows;
-        gridRef.current.offsetX = offsetX;
-        gridRef.current.offsetY = offsetY;
-        gridRef.current.cells = gridRef.current.cells.slice(0, cols).map(col => col.slice(0, rows));
-      }
-    };
-
-    const drawGrid = () => {
-      if (!ctx || !canvas || !gridRef.current) return;
-
-      ctx.fillStyle = '#000000';
-      ctx.fillRect(0, 0, canvas.width, canvas.height);
-
-      const grid = gridRef.current;
-      const cellSize = CELL_SIZE * 0.8;
-      const roundness = cellSize * 0.2;
-
-      for (let i = 0; i < grid.cols; i++) {
-        for (let j = 0; j < grid.rows; j++) {
-          const cell = grid.cells[i][j];
-          if (cell.opacity > 0.01) {
-            const [r, g, b] = cell.color;
-            ctx.fillStyle = `rgb(${r},${g},${b})`;
-            ctx.globalAlpha = cell.opacity * 0.8;
-
-            const scaledSize = cellSize * cell.scale;
-            const xOffset = (cellSize - scaledSize) / 2;
-            const yOffset = (cellSize - scaledSize) / 2;
-            
-            const x = grid.offsetX + i * CELL_SIZE + (CELL_SIZE - cellSize) / 2 + xOffset;
-            const y = grid.offsetY + j * CELL_SIZE + (CELL_SIZE - cellSize) / 2 + yOffset;
-            const scaledRoundness = roundness * cell.scale;
-
-            ctx.beginPath();
-            ctx.moveTo(x + scaledRoundness, y);
-            ctx.lineTo(x + scaledSize - scaledRoundness, y);
-            ctx.quadraticCurveTo(x + scaledSize, y, x + scaledSize, y + scaledRoundness);
-            ctx.lineTo(x + scaledSize, y + scaledSize - scaledRoundness);
-            ctx.quadraticCurveTo(x + scaledSize, y + scaledSize, x + scaledSize - scaledRoundness, y + scaledSize);
-            ctx.lineTo(x + scaledRoundness, y + scaledSize);
-            ctx.quadraticCurveTo(x, y + scaledSize, x, y + scaledSize - scaledRoundness);
-            ctx.lineTo(x, y + scaledRoundness);
-            ctx.quadraticCurveTo(x, y, x + scaledRoundness, y);
-            ctx.fill();
-          }
-        }
-      }
-      
-      ctx.globalAlpha = 1;
-    };
+    gridRef.current = initGrid(displayWidth, displayHeight);
 
     const animate = () => {
       frameCount.current++;
@@ -297,19 +264,63 @@ const Background: React.FC<BackgroundProps> = ({
         updateCellAnimations(gridRef.current);
       }
       
-      drawGrid();
+      // Draw frame
+      ctx.fillStyle = '#000000';
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+      if (gridRef.current) {
+        const grid = gridRef.current;
+        const cellSize = CELL_SIZE * 0.8;
+        const roundness = cellSize * 0.2;
+
+        for (let i = 0; i < grid.cols; i++) {
+          for (let j = 0; j < grid.rows; j++) {
+            const cell = grid.cells[i][j];
+            if (cell.opacity > 0.01) {
+              const [r, g, b] = cell.color;
+              ctx.fillStyle = `rgb(${r},${g},${b})`;
+              ctx.globalAlpha = cell.opacity * 0.8;
+
+              const scaledSize = cellSize * cell.scale;
+              const xOffset = (cellSize - scaledSize) / 2;
+              const yOffset = (cellSize - scaledSize) / 2;
+              
+              const x = grid.offsetX + i * CELL_SIZE + (CELL_SIZE - cellSize) / 2 + xOffset;
+              const y = grid.offsetY + j * CELL_SIZE + (CELL_SIZE - cellSize) / 2 + yOffset;
+              const scaledRoundness = roundness * cell.scale;
+
+              ctx.beginPath();
+              ctx.moveTo(x + scaledRoundness, y);
+              ctx.lineTo(x + scaledSize - scaledRoundness, y);
+              ctx.quadraticCurveTo(x + scaledSize, y, x + scaledSize, y + scaledRoundness);
+              ctx.lineTo(x + scaledSize, y + scaledSize - scaledRoundness);
+              ctx.quadraticCurveTo(x + scaledSize, y + scaledSize, x + scaledSize - scaledRoundness, y + scaledSize);
+              ctx.lineTo(x + scaledRoundness, y + scaledSize);
+              ctx.quadraticCurveTo(x, y + scaledSize, x, y + scaledSize - scaledRoundness);
+              ctx.lineTo(x, y + scaledRoundness);
+              ctx.quadraticCurveTo(x, y, x + scaledRoundness, y);
+              ctx.fill();
+            }
+          }
+        }
+        
+        ctx.globalAlpha = 1;
+      }
+
       animationFrameRef.current = requestAnimationFrame(animate);
     };
 
-    window.addEventListener('resize', resizeCanvas);
-    resizeCanvas();
+    window.addEventListener('resize', handleResize);
     animate();
 
     return () => {
-      window.removeEventListener('resize', resizeCanvas);
+      window.removeEventListener('resize', handleResize);
       if (animationFrameRef.current) {
         cancelAnimationFrame(animationFrameRef.current);
       }
+      if (resizeTimeoutRef.current) {
+        clearTimeout(resizeTimeoutRef.current);
+      }
     };
   }, [layout]);
 
@@ -318,7 +329,7 @@ const Background: React.FC<BackgroundProps> = ({
       return 'fixed inset-0 -z-10';
     }
     
-    const baseClasses = 'fixed top-0 bottom-0 hidden lg:block -z-10';
+    const baseClasses = 'fixed top-0 bottom-0 hidden lg:block -z-10 pointer-events-none';
     return position === 'left' 
       ? `${baseClasses} left-0` 
       : `${baseClasses} right-0`;

src/src/components/header/index.tsx

@@ -35,7 +35,6 @@ export default function Header() {
   };
 
   const isIndexPage = checkIsActive("/");
-
   const headerLinks = Links.map((link) => {
     const isActive = checkIsActive(link.href);
     
@@ -43,9 +42,9 @@ export default function Header() {
       <div
         key={link.id}
         className={`
-          relative inline-block 
+          relative inline-block
           ${link.color}
-          ${!isIndexPage ? 'bg-black rounded' : ''}
+          ${!isIndexPage ? 'bg-black' : ''}
         `}
       >
         <a 
@@ -91,12 +90,14 @@ export default function Header() {
         ${visible ? "translate-y-0" : "-translate-y-full"}
       `}
     >
-      <div className="flex flex-row items-center justify-center h-full">
+      <div className={`
+        w-full flex flex-row items-center justify-center
+        ${!isIndexPage ? 'bg-black md:bg-transparent' : ''}
+      `}>
         <div className={`
-          flex flex-row pt-1 px-2 text-lg lg:pt-2 lg:text-3xl md:text-2xl
-          items-center justify-between md:justify-center 
-          space-x-2 md:space-x-10 lg:space-x-20
-          ${!isIndexPage ? 'bg-black' : ''}
+          w-full md:w-auto flex flex-row pt-1 px-2 text-lg lg:text-3xl md:text-2xl
+          items-center justify-between md:justify-center space-x-2 md:space-x-10 lg:space-x-20 md:py-2
+          ${!isIndexPage ? 'bg-black md:px-20' : ''}
         `}>
           {headerLinks}
         </div>

src/src/layouts/content.astro

@@ -1,5 +1,6 @@
 ---
 import "@/style/globals.css";
+import { ClientRouter } from "astro:transitions";
 import Header from "@/components/header";
 import Footer from "@/components/footer";
 import Background from "@/components/background";
@@ -13,22 +14,48 @@ export interface Props {
 
 const { title, description, permalink, current } = Astro.props;
 ---
+
 <html lang="en">
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width" />
-		<link rel="icon" type="image/svg+xml" href="/favicon.svg" />
-		<title>{title}</title>
-	</head>
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <title>{title}</title>
+    <ClientRouter 
+      defaultTransition={false}
+      handleFocus={false}
+    />
+
+    <style>
+      ::view-transition-new(:root) {
+        animation: none;
+      }
+      
+      ::view-transition-old(:root) {
+        animation: 90ms ease-out both fade-out;
+      }
+
+      @keyframes fade-out {
+        from { opacity: 1; }
+        to { opacity: 0; }
+      }
+    </style>
+  </head>
   <body class="bg-background text-foreground">
     <Header client:load />
     <main>
       <div class="max-w-5xl mx-auto pt-12 px-4 py-8">
-        <Background layout="content" position="right" client:only="react" />
+        <Background layout="content" position="right" client:only="react" transition:persist />
         <slot />
-        <Background layout="content" position="left" client:only="react" />
+        <Background layout="content" position="left" client:only="react" transition:persist />
       </div>
     </main>
-    <Footer client:load />
-	</body>
+    <Footer client:load transition:persist />
+
+    <script>
+      document.addEventListener("astro:after-navigation", () => {
+        window.scrollTo(0, 0);
+      });
+    </script>
+  </body>
 </html>

src/src/layouts/index.astro

@@ -3,6 +3,8 @@ const { content } = Astro.props;
 
 import "@/style/globals.css";
 
+import { ClientRouter } from "astro:transitions";
+
 import Header from "@/components/header";
 import Footer from "@/components/footer";
 import Background from "@/components/background";
@@ -14,14 +16,15 @@ import Background from "@/components/background";
 		<meta name="viewport" content="width=device-width" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <link rel="sitemap" href="/sitemap-index.xml" />
-		<title>{content.title}</title>
+    <title>{content.title}</title>
+    <ClientRouter />
 	</head>
   <body class="bg-background text-foreground">
     <Header client:load />
-    <main>
+    <main transition:animate="fade">
       <Background layout="index" client:only="react" />
       <slot />
     </main>
-    <Footer client:load fixed=true />
+    <Footer client:load transition:persist fixed=true />
 	</body>
 </html>