add dialog for copy to clipboard fallback (fixes #152)

beszel/site/src/components/copy-to-clipboard.tsx

@@ -0,0 +1,49 @@
+import { useEffect, useMemo, useRef } from 'react'
+import { Dialog, DialogContent, DialogDescription, DialogHeader, DialogTitle } from './ui/dialog'
+import { Textarea } from './ui/textarea'
+import { $copyContent } from '@/lib/stores'
+
+export default function CopyToClipboard({ content }: { content: string }) {
+	return (
+		<Dialog defaultOpen={true}>
+			<DialogContent className="w-[90%] rounded-lg" style={{ maxWidth: 530 }}>
+				<DialogHeader>
+					<DialogTitle>Could not copy to clipboard</DialogTitle>
+					<DialogDescription>Please copy the text manually.</DialogDescription>
+				</DialogHeader>
+				<CopyTextarea content={content} />
+				<p className="text-sm text-muted-foreground">
+					Clipboard API requires a secure context (https, localhost, or *.localhost)
+				</p>
+			</DialogContent>
+		</Dialog>
+	)
+}
+
+function CopyTextarea({ content }: { content: string }) {
+	const textareaRef = useRef<HTMLTextAreaElement>(null)
+
+	const rows = useMemo(() => {
+		return content.split('\n').length
+	}, [content])
+
+	useEffect(() => {
+		if (textareaRef.current) {
+			textareaRef.current.select()
+		}
+	}, [textareaRef])
+
+	useEffect(() => {
+		return () => $copyContent.set('')
+	}, [])
+
+	return (
+		<Textarea
+			className="font-mono overflow-hidden whitespace-pre"
+			rows={rows}
+			value={content}
+			readOnly
+			ref={textareaRef}
+		/>
+	)
+}