[added a copy button]

Author: sayanChaterjee

src/components/code-example.tsx

@@ -14,6 +14,7 @@ import linesToDiv from "./lines-to-div";
 import atApplyInjection from "./syntax-highlighter/at-apply.json";
 import atRulesInjection from "./syntax-highlighter/at-rules.json";
 import themeFnInjection from "./syntax-highlighter/theme-fn.json";
+import { CopyButton } from "./copy-button";
 
 export function js(strings: TemplateStringsArray, ...args: any[]) {
   return { lang: "js", code: dedent(strings, ...args) };
@@ -50,7 +51,7 @@ export async function CodeExample({
 }) {
   return (
     <CodeExampleWrapper className={className}>
-      {filename ? <CodeExampleFilename filename={filename} /> : null}
+      {filename ? <CodeExampleFilename filename={filename} code={example.code} /> : null}
       <HighlightedCode example={example} />
     </CodeExampleWrapper>
   );
@@ -189,8 +190,13 @@ export function RawHighlightedCode({
   return <div className={className} dangerouslySetInnerHTML={{ __html: code }} />;
 }
 
-function CodeExampleFilename({ filename }: { filename: string }) {
-  return <div className="px-3 pt-0.5 pb-1.5 text-xs/5 text-gray-400 dark:text-white/50">{filename}</div>;
+function CodeExampleFilename({ filename, code }: { filename: string; code?: string }) {
+  return (
+    <div className="flex justify-between px-3 pt-0.5 pb-1.5 text-xs/5 text-gray-400 dark:text-white/50">
+      {filename}
+      {code && <CopyButton code={code} />}
+    </div>
+  );
 }
 
 const highlighter = await createHighlighter({

src/components/copy-button.tsx

@@ -0,0 +1,53 @@
+'use client'
+
+import { useState } from 'react'
+
+export function CopyButton({ code }: { code: string }) {
+  const [copied, setCopied] = useState(false)
+
+  const handleCopy = async () => {
+    try {
+      await navigator.clipboard.writeText(code)
+      setCopied(true)
+      setTimeout(() => setCopied(false), 2000)
+    } catch (err) {
+      console.error('Failed to copy:', err)
+    }
+  }
+
+  return (
+    <button 
+      onClick={handleCopy}
+      className="copy-button flex items-center rounded-lg transition-colors hover:text-white" 
+      title="Copy to clipboard"
+    >
+      {copied ? (
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          fill="none"
+          viewBox="0 0 24 24"
+          strokeWidth={1.5}
+          stroke="currentColor"
+          className="size-4 text-green-400"
+        >
+          <path strokeLinecap="round" strokeLinejoin="round" d="M4.5 12.75l6 6 9-13.5" />
+        </svg>
+      ) : (
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          fill="none"
+          viewBox="0 0 24 24"
+          strokeWidth={1.5}
+          stroke="currentColor"
+          className="size-4"
+        >
+          <path
+            strokeLinecap="round"
+            strokeLinejoin="round"
+            d="M15.666 3.888A2.25 2.25 0 0 0 13.5 2.25h-3c-1.03 0-1.9.693-2.166 1.638m7.332 0c.055.194.084.4.084.612v0a.75.75 0 0 1-.75.75H9a.75.75 0 0 1-.75-.75v0c0-.212.03-.418.084-.612m7.332 0c.646.049 1.288.11 1.927.184 1.1.128 1.907 1.077 1.907 2.185V19.5a2.25 2.25 0 0 1-2.25 2.25H6.75A2.25 2.25 0 0 1 4.5 19.5V6.257c0-1.108.806-2.057 1.907-2.185a48.208 48.208 0 0 1 1.927-.184"
+          />
+        </svg>
+      )}
+    </button>
+  )
+}