Files
lotteryFront/src/components/pull-to-refresh-indicator.tsx
2026-06-24 11:46:49 +08:00

51 lines
1.4 KiB
TypeScript

"use client";
import { Loader2, RefreshCw } from "lucide-react";
import { cn } from "@/lib/utils";
interface PullToRefreshIndicatorProps {
pullDistance: number;
isRefreshing: boolean;
threshold: number;
}
/**
* Visual indicator for pull-to-refresh.
* Renders a fixed bar at the top that grows as the user pulls down.
*/
export function PullToRefreshIndicator({
pullDistance,
isRefreshing,
threshold,
}: PullToRefreshIndicatorProps) {
if (pullDistance === 0 && !isRefreshing) return null;
const percent = Math.min(pullDistance / threshold, 1);
return (
<div
className="pointer-events-none fixed left-1/2 z-[60] flex w-full max-w-[480px] -translate-x-1/2 items-center justify-center overflow-hidden transition-[height] duration-100 ease-out"
style={{ height: isRefreshing ? 40 : pullDistance }}
>
<div
className={cn(
"flex items-center gap-1.5 text-xs font-bold text-[#32518d] transition-opacity",
pullDistance > 5 || isRefreshing ? "opacity-100" : "opacity-0",
)}
>
{isRefreshing ? (
<Loader2 className="size-4 animate-spin" aria-hidden />
) : (
<RefreshCw
className="size-4 transition-transform"
style={{ transform: `rotate(${percent * 360}deg)` }}
aria-hidden
/>
)}
<span>{isRefreshing ? "…" : ""}</span>
</div>
</div>
);
}