snapshot of https://github.com/shadcn-ui/ui.git (main, 2026-09-15; blobs > 131072B omitted)

apps/v4/components/copy-button.tsx

@@ -0,0 +1,121 @@
+"use client"
+
+import * as React from "react"
+import { IconCheck, IconCopy } from "@tabler/icons-react"
+import { cn } from "cn"
+
+import { trackEvent, type Event } from "@/lib/events"
+import { Button } from "@/registry/new-york-v4/ui/button"
+
+function legacyCopyToClipboard(value: string) {
+  const textArea = document.createElement("textarea")
+  textArea.value = value
+  textArea.setAttribute("readonly", "")
+  textArea.style.position = "fixed"
+  textArea.style.opacity = "0"
+  textArea.style.pointerEvents = "none"
+
+  document.body.appendChild(textArea)
+  textArea.focus()
+  textArea.select()
+  textArea.setSelectionRange(0, value.length)
+
+  let hasCopied = false
+  try {
+    hasCopied = document.execCommand("copy")
+  } catch {
+    hasCopied = false
+  }
+
+  document.body.removeChild(textArea)
+  return hasCopied
+}
+
+export async function copyToClipboardWithMeta(value: string, event?: Event) {
+  if (typeof window === "undefined") {
+    return false
+  }
+
+  if (!value) {
+    return false
+  }
+
+  let hasCopied = false
+
+  if (navigator.clipboard?.writeText) {
+    try {
+      await navigator.clipboard.writeText(value)
+      hasCopied = true
+    } catch {
+      hasCopied = legacyCopyToClipboard(value)
+    }
+  } else {
+    hasCopied = legacyCopyToClipboard(value)
+  }
+
+  if (!hasCopied) {
+    return false
+  }
+
+  if (event) {
+    trackEvent(event)
+  }
+
+  return true
+}
+
+export function CopyButton({
+  value,
+  className,
+  variant = "ghost",
+  event,
+  ...props
+}: React.ComponentProps<typeof Button> & {
+  value: string
+  src?: string
+  event?: Event["name"]
+  tooltip?: string
+}) {
+  const [hasCopied, setHasCopied] = React.useState(false)
+
+  React.useEffect(() => {
+    if (hasCopied) {
+      const timer = setTimeout(() => setHasCopied(false), 2000)
+      return () => clearTimeout(timer)
+    }
+  }, [hasCopied])
+
+  return (
+    <Button
+      data-slot="copy-button"
+      data-copied={hasCopied}
+      size="icon"
+      variant={variant}
+      className={cn(
+        "absolute top-3 right-2 z-10 size-7 bg-code hover:opacity-100 focus-visible:opacity-100",
+        className
+      )}
+      onClick={async () => {
+        const hasCopied = await copyToClipboardWithMeta(
+          value,
+          event
+            ? {
+                name: event,
+                properties: {
+                  code: value,
+                },
+              }
+            : undefined
+        )
+
+        if (hasCopied) {
+          setHasCopied(true)
+        }
+      }}
+      {...props}
+    >
+      <span className="sr-only">Copy</span>
+      {hasCopied ? <IconCheck /> : <IconCopy />}
+    </Button>
+  )
+}