fix: update typing animation component

Author: dillionverma

content/docs/components/typing-animation.mdx

@@ -42,8 +42,11 @@ npx shadcn@latest add "https://magicui.design/r/typing-animation"
 
 ## Props
 
-| Prop      | Type   | Description                                   | Default |
-| --------- | ------ | --------------------------------------------- | ------- |
-| className | string | The class name to be applied to the component |         |
-| duration  | number | Duration to wait in between each char type.   | 200     |
-| text      | string | Text to animate                               | ""      |
+| Prop        | Type              | Description                                   | Default |
+| ----------- | ----------------- | --------------------------------------------- | ------- |
+| children    | string            | Text content to animate                       |         |
+| className   | string            | The class name to be applied to the component |         |
+| duration    | number            | Duration to wait in between each char type    | 100     |
+| delay       | number            | Delay before animation starts (in ms)         | 0       |
+| as          | React.ElementType | Component to render as                        | "div"   |
+| startOnView | boolean           | Start animation when component is in view     | false   |

registry/default/example/typing-animation-demo.tsx

@@ -1,10 +1,5 @@
 import TypingAnimation from "@/registry/default/magicui/typing-animation";
 
 export default function TypingAnimationDemo() {
-  return (
-    <TypingAnimation
-      className="text-4xl font-bold text-black dark:text-white"
-      text="Typing Animation"
-    />
-  );
+  return <TypingAnimation>Typing Animation</TypingAnimation>;
 }

registry/default/magicui/typing-animation.tsx

@@ -1,28 +1,70 @@
 "use client";
 
-import { useEffect, useState } from "react";
-
 import { cn } from "@/lib/utils";
+import { motion, MotionProps } from "motion/react";
+import { useEffect, useRef, useState } from "react";
 
-interface TypingAnimationProps {
-  text: string;
-  duration?: number;
+interface TypingAnimationProps extends MotionProps {
+  children: string;
   className?: string;
+  duration?: number;
+  delay?: number;
+  as?: React.ElementType;
+  startOnView?: boolean;
 }
 
 export default function TypingAnimation({
-  text,
-  duration = 200,
+  children,
   className,
+  duration = 100,
+  delay = 0,
+  as: Component = "div",
+  startOnView = false,
+  ...props
 }: TypingAnimationProps) {
+  const MotionComponent = motion.create(Component, {
+    forwardMotionProps: true,
+  });
+
   const [displayedText, setDisplayedText] = useState<string>("");
-  const [i, setI] = useState<number>(0);
+  const [started, setStarted] = useState(false);
+  const elementRef = useRef<HTMLElement | null>(null);
+
+  useEffect(() => {
+    if (!startOnView) {
+      const startTimeout = setTimeout(() => {
+        setStarted(true);
+      }, delay);
+      return () => clearTimeout(startTimeout);
+    }
+
+    const observer = new IntersectionObserver(
+      ([entry]) => {
+        if (entry.isIntersecting) {
+          setTimeout(() => {
+            setStarted(true);
+          }, delay);
+          observer.disconnect();
+        }
+      },
+      { threshold: 0.1 }
+    );
+
+    if (elementRef.current) {
+      observer.observe(elementRef.current);
+    }
+
+    return () => observer.disconnect();
+  }, [delay, startOnView]);
 
   useEffect(() => {
+    if (!started) return;
+
+    let i = 0;
     const typingEffect = setInterval(() => {
-      if (i < text.length) {
-        setDisplayedText(text.substring(0, i + 1));
-        setI(i + 1);
+      if (i < children.length) {
+        setDisplayedText(children.substring(0, i + 1));
+        i++;
       } else {
         clearInterval(typingEffect);
       }
@@ -31,16 +73,18 @@ export default function TypingAnimation({
     return () => {
       clearInterval(typingEffect);
     };
-  }, [duration, i]);
+  }, [children, duration, started]);
 
   return (
-    <h1
+    <MotionComponent
+      ref={elementRef}
       className={cn(
-        "font-display text-center text-4xl font-bold leading-[5rem] tracking-[-0.02em] drop-shadow-sm",
-        className,
+        "text-4xl font-bold leading-[5rem] tracking-[-0.02em]",
+        className
       )}
+      {...props}
     >
-      {displayedText ? displayedText : text}
-    </h1>
+      {displayedText}
+    </MotionComponent>
   );
 }

registry/registry-ui.ts

@@ -396,6 +396,7 @@ export const ui: Registry = [
   {
     name: "typing-animation",
     type: "registry:ui",
+    dependencies: ["motion"],
     files: ["magicui/typing-animation.tsx"],
   },
   {