Skeleton to Content

Installation#

CLI

npx shadcn@latest add https://hantui-theta.vercel.app/r/skeleton-reveal.json

Manual

1. Install the dependencies

   npmpnpmbunyarn

   npm install clsx motion tailwind-merge

2. Add the shared helpers

   Components use cn() from lib/utils.ts and the motion tokens below. See Installation if you have not set them up yet.

   lib/motion.ts

   import type { Transition, Variants } from "motion/react";
   
   /** Durations in seconds. */
   export const duration = {
     instant: 0.1,
     quick: 0.18,
     base: 0.28,
     slow: 0.45,
   } as const;
   
   /** Cubic-bezier curves. */
   export const ease = {
     /** Entering, UI response. */
     out: [0.22, 1, 0.36, 1],
     /** Moving on screen. */
     inOut: [0.65, 0, 0.35, 1],
     /** Sheets and the mobile menu. */
     drawer: [0.32, 0.72, 0, 1],
   } as const;
   
   /** Everyday UI: presses, icon swaps, popovers and modals. Exits run at `exitFactor` of the enter. */
   export const ui = {
     press: { scale: 0.96, duration: 0.12 },
     icon: { type: "spring", duration: 0.3, bounce: 0 },
     popover: { duration: 0.18, ease: ease.out },
     modal: { duration: 0.24, ease: ease.out },
     exitFactor: 0.6,
   } as const;
   
   /** Once-per-visit motion on the landing page: hero letters, the reel and the afterimage. */
   export const kinetic = {
     heroLetter: { duration: 0.6, ease: ease.out },
     /** Delay per letter, eased so the wave slows toward the end. */
     heroStep: 0.035,
     reelSwap: { type: "spring", duration: 0.5, bounce: 0.1 },
     /** Two afterimages: lag in seconds and opacity of each. */
     ghost: { lag: [0.04, 0.09], opacity: [0.14, 0.06] },
   } as const;
   
   /** Spring presets. */
   export const spring = {
     snappy: { type: "spring", stiffness: 500, damping: 30 },
     smooth: { type: "spring", stiffness: 260, damping: 26 },
     bouncy: { type: "spring", stiffness: 300, damping: 15 },
   } as const satisfies Record<string, Transition>;
   
   /** Stagger between siblings, in seconds (0.03–0.06). */
   export const stagger = {
     tight: 0.03,
     base: 0.045,
     loose: 0.06,
   } as const;
   
   /** Blur + fade + y-offset. Falls back to a plain fade under reduced motion. */
   export function enterVariants(reduceMotion?: boolean | null, y = 8): Variants {
     if (reduceMotion) {
       return {
         hidden: { opacity: 0 },
         visible: { opacity: 1, transition: { duration: duration.base } },
         exit: { opacity: 0, transition: { duration: duration.quick } },
       };
     }
     return {
       hidden: { opacity: 0, y, filter: "blur(4px)" },
       visible: {
         opacity: 1,
         y: 0,
         filter: "blur(0px)",
         transition: { duration: duration.base, ease: ease.out },
       },
       exit: {
         opacity: 0,
         y: -y / 2,
         filter: "blur(4px)",
         transition: { duration: duration.quick, ease: ease.out },
       },
     };
   }
   
   /** Scale 0.96 → 1 for popovers, menus and dialogs. */
   export function overlayVariants(reduceMotion?: boolean | null): Variants {
     if (reduceMotion) {
       return {
         hidden: { opacity: 0 },
         visible: { opacity: 1, transition: { duration: duration.quick } },
         exit: { opacity: 0, transition: { duration: duration.instant } },
       };
     }
     return {
       hidden: { opacity: 0, scale: 0.96, filter: "blur(2px)" },
       visible: {
         opacity: 1,
         scale: 1,
         filter: "blur(0px)",
         transition: { duration: duration.quick, ease: ease.out },
       },
       exit: {
         opacity: 0,
         scale: 0.96,
         filter: "blur(2px)",
         transition: { duration: duration.instant + 0.02, ease: ease.out },
       },
     };
   }
   
   /** Parent variants that stagger their children in. */
   export function staggerVariants(gap: number = stagger.base, delayChildren = 0): Variants {
     return {
       hidden: {},
       visible: { transition: { staggerChildren: gap, delayChildren } },
       exit: { transition: { staggerChildren: gap / 2, staggerDirection: -1 } },
     };
   }

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3. Copy the source

   components/ui/skeleton-reveal/skeleton-reveal.tsx

   "use client";
   
   import type { ComponentProps, ReactNode } from "react";
   import { AnimatePresence, motion, useReducedMotion } from "motion/react";
   import { cn } from "@/lib/utils";
   import { duration, ease } from "@/lib/motion";
   
   export type SkeletonProps = ComponentProps<"div">;
   
   /** A pulsing placeholder block; size and round it with className. */
   export function Skeleton({ className, ...props }: SkeletonProps) {
     return <div aria-hidden="true" className={cn("animate-pulse rounded-md bg-muted motion-reduce:animate-none", className)} {...props} />;
   }
   
   export interface SkeletonRevealProps extends Omit<ComponentProps<"div">, "children"> {
     /** Show the skeleton instead of the content. */
     loading: boolean;
     /** Placeholder shown while loading; shape it like the content so nothing jumps. */
     skeleton: ReactNode;
     /** The real content. */
     children: ReactNode;
     /** Screen-reader text while loading. @default "Loading" */
     loadingLabel?: string;
   }
   
   export function SkeletonReveal({ loading, skeleton, children, loadingLabel = "Loading", className, ...props }: SkeletonRevealProps) {
     const reduceMotion = useReducedMotion();
     return (
       // Skeleton and content share one grid cell, so they cross-fade in place.
       <div aria-busy={loading || undefined} className={cn("grid *:[grid-area:1/1]", className)} {...props}>
         <span role="status" className="sr-only">
           {loading ? loadingLabel : ""}
         </span>
         <AnimatePresence initial={false}>
           {loading ? (
             <motion.div
               key="skeleton"
               aria-hidden="true"
               initial={{ opacity: 0 }}
               animate={{ opacity: 1 }}
               exit={{ opacity: 0, transition: { duration: duration.base } }}
             >
               {skeleton}
             </motion.div>
           ) : (
             <motion.div
               key="content"
               initial={reduceMotion ? { opacity: 0 } : { opacity: 0, filter: "blur(6px)", y: 4 }}
               animate={{ opacity: 1, filter: "blur(0px)", y: 0, transitionEnd: { filter: "none" } }}
               exit={{ opacity: 0, transition: { duration: duration.quick } }}
               transition={{ duration: duration.slow, ease: ease.out, delay: reduceMotion ? 0 : 0.06 }}
             >
               {children}
             </motion.div>
           )}
         </AnimatePresence>
       </div>
     );
   }

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Usage#

import { Skeleton, SkeletonReveal } from "@/components/ui/skeleton-reveal/skeleton-reveal";

export function Profile({ user }: { user?: User }) {
  return (
    <SkeletonReveal
      loading={!user}
      skeleton={<div className="flex gap-4"><Skeleton className="size-12 rounded-full" /><Skeleton className="h-4 w-40" /></div>}
    >
      {user ? <ProfileCard user={user} /> : null}
    </SkeletonReveal>
  );
}

API reference#

Accessibility#

• The container sets aria-busy while loading, and a status message (“Loading”) is announced; the skeleton itself is aria-hidden.
• With reduced motion enabled, skeletons stop pulsing and content fades in without blur.