maslianok / scroll-behavior

Scroll management for history

scroll-behavior

Scroll management for history.

If you are using React Router, check out react-router-scroll, which wraps up the scroll management logic here into a router middleware.

Usage

import createHistory from 'history/lib/createBrowserHistory';
import withScroll from 'scroll-behavior';

const history = withScroll(createHistory());

Guide

Installation

$ npm i -S history
$ npm i -S scroll-behavior

Scroll behaviors

Basic usage

Extend your history object using withScroll. The extended history object will manage the scroll position for transitions.

Custom scroll behavior

You can customize the scroll behavior by providing a shouldUpdateScroll callback when extending the history object. This callback is called with both the previous location and the current location.

You can return:

• a falsy value to suppress the scroll update
• a position array such as [0, 100] to scroll to that position
• a truthy value to get normal scroll behavior

const history = withScroll(createHistory(), (prevLocation, location) => (
  // Don't scroll if the pathname is the same.
  !prevLocation || location.pathname !== prevLocation.pathname
));

const history = withScroll(createHistory(), (prevLocation, location) => (
  // Scroll to top when attempting to vist the current path.
  prevLocation && location.pathname === prevLocation.pathname ? [0, 0] : true
));