skeleton-card.tsx

Overview

skeleton-card.tsx defines a React functional component named SkeletonCard that renders a visual placeholder UI element commonly known as a "skeleton screen." Skeleton screens are used as loading placeholders that simulate the structure of content while the actual data is being fetched or rendered, improving perceived performance and user experience.

This component specifically renders a card-like skeleton with three horizontal bars of varying widths and consistent height, styled to fit within the card's background theme. It leverages a reusable Skeleton UI component and a utility function cn for conditional class name composition.

Detailed Explanation

SkeletonCard

Purpose

SkeletonCard serves as a reusable loading placeholder component designed to visually represent the loading state of card content. It presents three horizontal skeleton bars stacked vertically with spacing, imitating text lines or similar content blocks.

Props

Parameters

• props: SkeletonCardProps — an object containing optional styling class names.

Return Value

• Returns a JSX element: a <div> containing three <Skeleton> components arranged vertically with spacing.

Usage Example

import { SkeletonCard } from '@/components/skeleton-card';

function MyComponent() {
  return (
    <div>
      {/* SkeletonCard with default spacing and styles */}
      <SkeletonCard />

      {/* SkeletonCard with additional custom styles */}
      <SkeletonCard className="max-w-md mx-auto" />
    </div>
  );
}

Implementation Details

• The component destructures className from props.

• It uses the cn utility function (likely a classnames helper) to merge the base class 'space-y-2' (which applies vertical spacing between children) with any additional classes passed via className.

• Inside the container <div>, three <Skeleton> components render bars:

  • Two full-width bars with height 4 (h-4) and full width (w-full).

  • One bar with height 4 and width two-thirds (w-2/3), creating a visually varied skeleton effect.

• The bg-bg-card class is applied to all skeleton elements, presumably to match the card background color or theme.

Interactions with Other Parts of the System

• Skeleton component: Imported from @/components/ui/skeleton, this component provides the generic skeleton loading block UI. SkeletonCard composes three such blocks.

• cn utility function: Imported from @/lib/utils, it handles conditional and concatenated class names to dynamically compose the container's CSS classes.

• Styling: Uses Tailwind CSS utility classes such as h-4, w-full, space-y-2, and presumably custom classes like bg-bg-card.

This file acts as a presentational component and is likely used in higher-level UI components or pages where card content is asynchronously loaded.

Mermaid Component Diagram

componentDiagram
    component "SkeletonCard" {
        +props: SkeletonCardProps
        +return JSX.Element
    }
    component "Skeleton" {
        <<UI Component>>
    }
    component "cn" {
        <<Utility Function>>
    }
    "SkeletonCard" --> "Skeleton" : renders 3 instances
    "SkeletonCard" ..> "cn" : uses for class names

Summary

• File Purpose: Provides a reusable React component rendering a card-shaped skeleton loading placeholder.

• Key Component: SkeletonCard with optional className prop.

• Functionality: Renders three horizontally stacked skeleton bars with spacing.

• Dependencies: Relies on a Skeleton UI component and a cn utility for class name management.

• Usage Context: Used wherever card-like content requires a loading placeholder during asynchronous data fetching.

This component improves user experience by visually indicating loading states in card layouts with minimal and customizable styling options.