From 9c48d638e018f8b071f2399a9d495234e0aa4413 Mon Sep 17 00:00:00 2001
From: Saidev Dhal <connect.saidev@gmail.com>
Date: Sat, 5 Oct 2024 17:35:35 +0530
Subject: [PATCH] update the hero section

---
 .../ui/placeholders-and-vanish-input.tsx      | 65 ++++++++++---------
 1 file changed, 35 insertions(+), 30 deletions(-)

diff --git a/components/ui/placeholders-and-vanish-input.tsx b/components/ui/placeholders-and-vanish-input.tsx
index 32ce735..74c3972 100644
--- a/components/ui/placeholders-and-vanish-input.tsx
+++ b/components/ui/placeholders-and-vanish-input.tsx
@@ -4,6 +4,13 @@ import { AnimatePresence, motion } from "framer-motion";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { cn } from "@/lib/utils";
 
+interface PixelData {
+  x: number;
+  y: number;
+  r: number;
+  color: string;
+}
+
 export function PlaceholdersAndVanishInput({
   placeholders,
   onChange,
@@ -18,19 +25,20 @@ export function PlaceholdersAndVanishInput({
   onSubmit: (e: React.FormEvent<HTMLFormElement>) => void;
 }) {
   const [currentPlaceholder, setCurrentPlaceholder] = useState(0);
-
   const intervalRef = useRef<NodeJS.Timeout | null>(null);
+  
   const startAnimation = () => {
     intervalRef.current = setInterval(() => {
       setCurrentPlaceholder((prev) => (prev + 1) % placeholders.length);
     }, 3000);
   };
+
   const handleVisibilityChange = () => {
     if (document.visibilityState !== "visible" && intervalRef.current) {
-      clearInterval(intervalRef.current); // Clear the interval when the tab is not visible
+      clearInterval(intervalRef.current);
       intervalRef.current = null;
     } else if (document.visibilityState === "visible") {
-      startAnimation(); // Restart the interval when the tab becomes visible
+      startAnimation();
     }
   };
 
@@ -47,7 +55,7 @@ export function PlaceholdersAndVanishInput({
   }, [placeholders]);
 
   const canvasRef = useRef<HTMLCanvasElement>(null);
-  const newDataRef = useRef<any[]>([]);
+  const newDataRef = useRef<PixelData[]>([]);
   const inputRef = useRef<HTMLInputElement>(null);
   const [value, setValue] = useState("");
   const [animating, setAnimating] = useState(false);
@@ -58,25 +66,25 @@ export function PlaceholdersAndVanishInput({
     if (!canvas) return;
     const ctx = canvas.getContext("2d");
     if (!ctx) return;
-
+  
     canvas.width = 800;
     canvas.height = 800;
     ctx.clearRect(0, 0, 800, 800);
     const computedStyles = getComputedStyle(inputRef.current);
-
+  
     const fontSize = parseFloat(computedStyles.getPropertyValue("font-size"));
     ctx.font = `${fontSize * 2}px ${computedStyles.fontFamily}`;
     ctx.fillStyle = "#FFF";
     ctx.fillText(value, 16, 40);
-
+  
     const imageData = ctx.getImageData(0, 0, 800, 800);
     const pixelData = imageData.data;
-    const newData: any[] = [];
-
+    const newData: PixelData[] = [];
+  
     for (let t = 0; t < 800; t++) {
-      let i = 4 * t * 800;
+      const i = 4 * t * 800;
       for (let n = 0; n < 800; n++) {
-        let e = i + 4 * n;
+        const e = i + 4 * n;
         if (
           pixelData[e] !== 0 &&
           pixelData[e + 1] !== 0 &&
@@ -85,24 +93,16 @@ export function PlaceholdersAndVanishInput({
           newData.push({
             x: n,
             y: t,
-            color: [
-              pixelData[e],
-              pixelData[e + 1],
-              pixelData[e + 2],
-              pixelData[e + 3],
-            ],
+            r: 1,
+            color: `rgba(${pixelData[e]}, ${pixelData[e + 1]}, ${pixelData[e + 2]}, ${pixelData[e + 3] / 255})`, // Corrected here
           });
         }
       }
     }
-
-    newDataRef.current = newData.map(({ x, y, color }) => ({
-      x,
-      y,
-      r: 1,
-      color: `rgba(${color[0]}, ${color[1]}, ${color[2]}, ${color[3]})`,
-    }));
+  
+    newDataRef.current = newData;
   }, [value]);
+  
 
   useEffect(() => {
     draw();
@@ -111,7 +111,7 @@ export function PlaceholdersAndVanishInput({
   const animate = (start: number) => {
     const animateFrame = (pos: number = 0) => {
       requestAnimationFrame(() => {
-        const newArr = [];
+        const newArr: PixelData[] = [];
         for (let i = 0; i < newDataRef.current.length; i++) {
           const current = newDataRef.current[i];
           if (current.x < pos) {
@@ -132,7 +132,7 @@ export function PlaceholdersAndVanishInput({
         if (ctx) {
           ctx.clearRect(pos, 0, 800, 800);
           newDataRef.current.forEach((t) => {
-            const { x: n, y: i, r: s, color: color } = t;
+            const { x: n, y: i, r: s, color } = t;
             if (n > pos) {
               ctx.beginPath();
               ctx.rect(n, i, s, s);
@@ -176,8 +176,11 @@ export function PlaceholdersAndVanishInput({
   const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
     e.preventDefault();
     vanishAndSubmit();
-    onSubmit && onSubmit(e);
+    if (onSubmit) {
+      onSubmit(e);
+    }
   };
+
   return (
     <form
       className={cn(
@@ -188,7 +191,7 @@ export function PlaceholdersAndVanishInput({
     >
       <canvas
         className={cn(
-          "absolute pointer-events-none  text-base transform scale-50 top-[20%] left-2 sm:left-8 origin-top-left filter invert dark:invert-0 pr-20",
+          "absolute pointer-events-none text-base transform scale-50 top-[20%] left-2 sm:left-8 origin-top-left filter invert dark:invert-0 pr-20",
           !animating ? "opacity-0" : "opacity-100",
         )}
         ref={canvasRef}
@@ -197,7 +200,9 @@ export function PlaceholdersAndVanishInput({
         onChange={(e) => {
           if (!animating) {
             setValue(e.target.value);
-            onChange && onChange(e);
+            if (onChange) {
+              onChange(e);
+            }
           }
         }}
         onKeyDown={handleKeyDown}
@@ -279,4 +284,4 @@ export function PlaceholdersAndVanishInput({
       </div>
     </form>
   );
-}
\ No newline at end of file
+}