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1.3kb experimental pjax lib with a focus on animated page transitions

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alio

A lightweight pjax library for animated page transitions.

Features

  • 🦠 Tiny & minimal (1kb gzipped)
  • 🗺️ Contextual transitions

Installation

npm i alio

Quick Start

Every page of your website will need exactly 1 element with an a-root attribute. The a-root needs exactly 1 child element with an a-page attribute.

<div a-root>
  <div a-page>
    <!-- Page content here -->
  </div>
</div>

Then create an alio instance and a transition called default. In alio, transitions are objects with async enter and leave methods. In the example below, motion is used to implement a basic fade transition, but feel free to use GSAP, or whatever other animation tool you'd like.

import { create } from 'alio'
import { animate } from 'motion'

const alio = create({
  transitions: {
    default: {
      async enter({ from, to, href }) {
        window.scroll(0, 0)
        from?.remove() // we leave it up to you to decide when to remove the previous page from the DOM
        await animate(to, { opacity: [0, 1] }).finished
      },
      async leave({ from, href }) {
        await animate(from, { opacity: 0 }).finished
      },
    }
  }
})

// alio events
alio.on('beforeLeave', ({ href, from }) => {})
alio.on('afterLeave', ({ href, from }) => {})
alio.on('beforeEnter', ({ href, from, to }) => {})
alio.on('afterEnter', ({ href, from, to }) => {})
alio.on('samePage', () => {})

// programmatic redirect
alio.go('/another-page')

The alio instance offers an on method for listening to alio events. There is also a go method for programmatically redirecting to a different page.

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1.3kb experimental pjax lib with a focus on animated page transitions

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