GitHub - isaact/vue-infinity: Vue Infinity is a lightweight library for creating resource efficient apps. Unload parts of your UI when not visible and build easy to layout virtual scrollers that can present unlimited content while keeping resource usage fixed. (original) (raw)

Vue-Infinity

Build lightning-fast Vue apps that only render what is on-screen

Vue-Infinity brings a radical efficiency boost to your UI by applying the same principle that powers 3D engines: if it’s not in visible, it doesn’t get rendered. This lets your app handle hundreds or thousands of elements without bloating memory, janking or killing batteries.

Whether you’re building infinite feeds, carousels, media galleries, or dashboards—Vue-Infinity keeps your app fast, smooth, and efficient.

Table of Contents

• Gallery Web Component
• Carousel Component
• InfiniteCarousel
• Ghost Component
• AutoObserver
• Installation
• Live Demo
• Run Playground App
• Releases
• License

🖼️ Gallery Web Component

The gallery-ce is a web component built on top of the Carousel component that provides an easy way to display a gallery of images with features like lazy loading, responsive layout, and dynamic sizing. It's designed to efficiently handle large collections of images while maintaining smooth performance.

• Easy to use: Suitable when you have a big static list of images you want to browse
• Framework agnostic: Can be used without Vue in any framework or vanilla JavaScript
• Flexible Layout: Configurable grid layout with customizable columns and rows
• Lazy Loading: Only renders visible images for optimal performance

Usage Examples

Plain JavaScript

React

import { useEffect, useRef } from 'react'; import { registerElements } from 'vue-infinity';

registerElements();

function Gallery() { const galleryRef = useRef(null);

useEffect(() => { if (galleryRef.current) { galleryRef.current.updateImages([ 'image1.jpg', 'image2.jpg', 'image3.jpg' ]); } }, []);

return ; }

Svelte

Vue

Props

Methods

Note: The registerElements() function must be called once before using any vue-infinity web components.

🎠 Carousel Component

The Carousel component works like the Gallery but for any type of content. It provides a flexible way to display any kind of content in a carousel layout with lazy loading and responsive design.

🪂 InfiniteCarousel

The InfiniteCarousel works like the Carousel but with the ability to fetch more data as the user scrolls. It integrates with the useInfiniteList composable to handle data fetching and caching.

Creating an InfiniteList

import { useInfiniteList } from 'vue-infinity';

const infiniteList = useInfiniteList({ fetchItems: async (page, signal) => { const response = await fetch(/api/items?page=${page}, { signal }); return response.json(); }, itemsPerPage: 50, maxPagesToCache: 5 });

Using with InfiniteList

👻 Ghost Component

The Ghost component is useful when you want to apply visibility based rendering to anything. It optimizes performance by conditionally rendering its slot content. When off-screen, the content is replaced by a dimensionally-identical placeholder.

Component Usage

Directive Usage

🔎 AutoObserver

The AutoObserver combines a MutationObserver and IntersectionObserver to allow you to track a container's child elements. It automatically handles new elements and cleaning up removed ones.

• Get notified when elements get added
• Get notified when elements become visible or when they are scrolled out of view

const containerRef = ref();

const { disconnect } = useAutoObserver( containerRef, (entries) => { entries.forEach(entry => { console.log('Element visibility changed:', entry.isIntersecting); }); }, { rootMargin: '200px', threshold: 0.1, filter: el => el.classList.contains('observe-me') } );

📦 Installation

🧪 Live Demo

Explore the live demo here: https://tewolde.co/vueInfinity/

🧑‍💻 Run Playground App

To run the playground application locally:

Releases

v0.8.4 (2025-11-26)

Enhancements

InfiniteCarousel Component:

• Added startingPosition prop with two-way binding support (v-model:startingPosition)
• Integrated useSortedElements composable for improved top-left item detection

Playground App:

• Updated to show startingPosition control for InfiniteCarousel

v0.8.0 (2025-08-11)

New Components and Features

Gallery Web Component:

• Simple: Easy to use web component for displaying image galleries with lazy loading, responsive layout and memory efficiency.
• Framework Agnostic: Use in any frontend framework or even plain JavaScript.
• Flexible: Methods to update images and scroll to specific items
• Playground App: Added a demo for the Gallery component in the playground app.
• Documentation Updates: Added comprehensive examples for Vue, React, Svelte, and plain JavaScriptCarousel Component:
• Similar to the Gallery but for any type of content.
• Supports lazy loading, easy layout and memory efficiency.
• Supports custom item templates and dynamic content sizing.

v0.7.0 (2024-07-01)

• v-ghost Directive: Introduced the new v-ghost directive to optimize performance by automatically unloading off-screen content.
• Dynamic Item Sizing: The InfiniteCarousel now supports an onGetItemAspectRatio callback, enabling it to render items with variable heights.
• Documentation Updates: Added instructions for the v-ghost directive and the dynamic sizing feature.

📄 License

Apache 2.0 License - https://opensource.org/licenses/Apache-2.0