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react-scroll-changer

A simple way to do things on scroll.

Demos

• Demo site

Installation

npm install react-scroll-changer

Overview & Basic Example

React Scroll Changer attempts to create an easy component to wrap components and affect them via scroll. A basic setup is something as follows.

app.jsx

import React, { Component } from 'react';
import ScrollChanger from 'react-scroll-changer';
 
const View = ({ scrollAmount }) => (
  <div
    style={{
      width: "100vw",
      height: "100vh",
      backgroundColor: "#FCD06B",
      opacity: scrollAmount
    }}
  />
);
 
class App extends Component ({
  render() {
    return (
    <ScrollChanger
      children={<View length={2} />}
      start={1}
      end={0}
      length={2}
    />
    );
  },
});
 

The ScrollChanger component wraps a seperate view and passes down the scrollAmount function, which is transitions based on the start and end amounts stipulated.

Props

Name	Type	Required	Note
children	React Component	Yes	The child element that will be within the scroll changer.
attached (default: true)	Boolean	Yes	Does the child element attach to the viewport on scroll? Or does it scroll naturally.
start	Number	Yes	The starting value of the scrollAmount.
startOffset (default: 0)	Number	Yes	The offset in percentage points (eg., 0.3) in which to delay tracking from the top of the viewport.
end	Number	Yes	The ending value of the scrollAmount.
endOffset (default: 0)	Number	Yes	The offset in percentage points (eg., 0.3) in which to speed up tracking from the bottom of the viewport.
length	Number	Yes	Number of 100vh blocks to scroll. I.E., a length of 2 is 200vh of scrolling, 3 is 300vh, etc.
style	Object	No	Style to apply to the inner wrapper
wrapperStyle	Object	No	Style to pass to the wrapper object that encapsulates the whole section
scrollOptions	Object	No	Scroll options to send to the below the surface react-scroll-percentage plugin. See the docs for options to pass.

License

MIT