Single-line announcement banner that remembers its dismissal in localStorage over a page placeholder, with a link to show it again.
@7ovr
registry/blocks/announcement/3/announcement-block.tsx
"use client"
import { useEffect, useState } from "react"
import { Button } from "@/components/ui/button"
import { IconPlaceholder } from "@/components/icons/icon-placeholder"
const STORAGE_KEY = "acme-announcement-3-dismissed"
export default function AnnouncementBlock() {
const [mounted, setMounted] = useState(false)
const [dismissed, setDismissed] = useState(false)
useEffect(() => {
const id = requestAnimationFrame(() => {
try {
if (localStorage.getItem(STORAGE_KEY) === "true") {
setDismissed(true)
}
} catch {}
setMounted(true)
})
return () => cancelAnimationFrame(id)
}, [])
function handleDismiss() {
setDismissed(true)
try {
localStorage.setItem(STORAGE_KEY, "true")
} catch {}
}
function handleReset() {
setDismissed(false)
try {
localStorage.removeItem(STORAGE_KEY)
} catch {}
}
return (
<section className="flex min-h-svh w-full flex-col items-center bg-muted/30 px-6 py-16 text-foreground">
<div className="w-full max-w-5xl">
{mounted && !dismissed && (
<div className="flex w-full items-center gap-3 rounded-lg border border-border bg-primary px-4 py-2.5 text-sm text-primary-foreground shadow-sm">
<IconPlaceholder
lucide="Rocket"
tabler="IconRocket"
hugeicons="RocketIcon"
phosphor="Rocket"
remixicon="RiRocket2Line"
className="hidden size-4 shrink-0 sm:block"
aria-hidden="true"
/>
<p className="min-w-0 flex-1 truncate font-medium">
<span className="font-semibold">Acme Cloud is live.</span>{" "}
<span className="text-primary-foreground/80">
Deploy in seconds with zero config.
</span>{" "}
<Button
variant="link"
size="sm"
render={<a href="#" />}
nativeButton={false}
className="h-auto p-0 align-baseline text-primary-foreground underline underline-offset-2 hover:text-primary-foreground/80"
>
Get Started
</Button>
</p>
<Button
variant="ghost"
size="icon-sm"
aria-label="Dismiss announcement"
onClick={handleDismiss}
className="-mr-1 shrink-0 hover:bg-primary-foreground/10 hover:text-primary-foreground"
>
<IconPlaceholder
lucide="X"
tabler="IconX"
hugeicons="Cancel01Icon"
phosphor="X"
remixicon="RiCloseLine"
aria-hidden="true"
/>
</Button>
</div>
)}
<div className="mx-auto mt-8 w-4/5 space-y-6" aria-hidden="true">
<div className="flex items-center justify-between">
<div className="h-6 w-28 rounded-md bg-muted" />
<div className="hidden items-center gap-3 sm:flex">
<div className="h-3 w-12 rounded-md bg-muted" />
<div className="h-3 w-12 rounded-md bg-muted" />
<div className="h-7 w-16 rounded-md bg-muted" />
</div>
</div>
<div className="space-y-2">
<div className="h-6 w-1/2 rounded-md bg-muted" />
<div className="h-3 w-full rounded-md bg-muted" />
<div className="h-3 w-4/5 rounded-md bg-muted" />
</div>
<div className="grid gap-3 sm:grid-cols-3">
<div className="h-20 rounded-md bg-muted" />
<div className="h-20 rounded-md bg-muted" />
<div className="h-20 rounded-md bg-muted" />
</div>
</div>
{mounted && dismissed && (
<p className="mt-8 text-center text-xs text-muted-foreground">
Banner dismissed and saved to your browser.{" "}
<Button
variant="link"
size="sm"
onClick={handleReset}
className="h-auto p-0 align-baseline text-xs"
>
Show It Again
</Button>
</p>
)}
</div>
</section>
)
}
Requires a base-* style in components.json (the shadcn init default). Legacy new-york/radix-* styles install Radix primitives, which reject the render prop this block uses.






























