react-bottom-scroll

A simple React component wrapper which automatically scrolls content to the bottom of the wrapper. Also provides callback methods that are triggered on reaching top or bottom of the wrapper. Best suited for chat like application.

Installation

npm install react-bottom-scroll

Upgrade

npm install react-bottom-scroll@latest

Usage

use the component to wrap the content which you want to scroll to the bottom

import { ScrollWrapper } from "react-botttom-scroll";

const wraperstyle = {
  width: 550,
  height: 550,
  overflowY: "auto",
};

const topCallback = () => {
  // callback to load new content at the top of the wrapper. eg loading more chat at the top
  console.log("Reached top of container");
};

const bottomCallback = () => {
  //callback to handle reaching bottom of the page eg. setting read status to true
  console.log("Reached bottom of container");
};

<ScrollWrapper
  wrapperStyle={wrapperStyle}
  minScroll={100}
  smoothBehavior
  topCallback={topCallback}
  bottomCallback={bottomCallback}
>
  {content}
</ScrollWrapper>;

here contents can be a list of div's or any other html elements.

Props

Property	Type	Default	Description
wrapperStyle	object	{width:500,height:500,overflowY:'scroll'}	CSS properties that will be set on scroll wrapper component. NOTE: CSS should be passed in react style.
minScroll	number	null	minimum scroll from bottom in pixels that should stop autoscroll to bottom if content is changed.
smoothBehavior	boolean	false	if smoothBehavior is true scrollBehavior is set to smooth
topCallback	function	null	callback function that will be triggered once content is scrolled to top of the wrapper. Eg. can be used to load more content on reaching top of the wrapper.
bottomCallback	function	null	callback function that will be triggered once content is scrolled to bottom of the wrapper. Eg. can be used to set read status of chat to true or false.