scrolled-past

A package within web-sparkle.

Implement easy-peasy CSS-based scroll-triggered changes (animation, etc.).

Usage

$ npm install scrolled-past

const ScrolledPast = require('scrolled-past')

const getOffset = el => el.height * 0.5

// Use a function to calculate offset
const scrolledPast = new ScrolledPast(getOffset, document.body)

// Or, just pass in a number
const scrolledPast = new ScrolledPast(200, document.body)

Reference

Add elements you want to affect using the data-attribute data-scrolled-past, like so:

<div data-scrolled-past="false"></div>

You can set it to false initially like above or just leave it valueless. Depends what you want your first-load state to look like.

new ScrolledPast(offset = 200, $container = document.body)

Create a new instance of ScrolledPast. Pass in an optional offset amount and parent container.

Params

• offset Number OR Function- The distance (in px) you'd like to wait before marking an element as "scrolled-past". If you want to be fancy, pass in a function to calculate it using the el object you get passed in. It'd look like this:

const calculateOffset = el => {
  // Dynamically offset based on the element's height.
  // Available values: el.$node, el.start, el.end, el.height
  return el.height * 0.5
}

• $container DOMElement - The parent container for all the nodes you want watched.

Development

To run the example locally, run the following commands:

npm install
npm run dev
npm start

Credits

This readme is maintained by [email protected].

License

MIT