README.md

react-scroll-section

A declarative solution to vertically navigate your React App

Live demo ✨

Why you should use it? 🤔

When you think about implementing a scrollTo functionality in a website the first thing it will your mind will be jQuery, using the following line of code:

$('#target').scroll();

I won't deny that actually works, but the problem comes when you start working with frameworks based on component, like React.

Manage the navigation to another section and which section can be hard task without a state management library.

This library will help you to avoid thinking all the possible edges cases and focus on the final result, which is just provide an easy navigation inside your app.

Built with 🔧

Just React! Using the following API:

• Context: using the of <Consumer /> and <Provider />.
• Ref: new createRef API
• Hooks: useScrollSection and useScrollSections to interact with the registered sections.

Installation

# npm
> npm install react-scroll-section

# yarn
> yarn add react-scroll-section

Usage

The library provides the following components:

• ScrollingProvider: responsible to link Section and SectionLink and know which Section is selected.
• Section: renders a <section /> tag that receives an ID and register itself in ScrollingProvider.
• useScrollSection: React Hook given the id of the section returns if the section is selected and a callback to scroll to it.
• useScrollSection: returns an array of all the sections with id, selected and scrollTo.

Examples

Using SectionLink (Static Menu)

import React from 'react';
import {
  ScrollingProvider,
  useScrollSection,
  Section,
} from 'react-scroll-section';

const StaticMenu = () => {
  const homeSection = useScrollSection('home');
  const aboutSection = useScrollSection('about');

  return (
    <ul>
      <li onClick={homeSection.onClick} selected={homeSection.selected}>
        Home
      </li>
      <li onClick={aboutSection.onClick} selected={aboutSection.selected}>
        About
      </li>
    </ul>
  );
};

const App = () => (
  <ScrollingProvider>
    <StaticMenu />
    <Section id="home">MY HOME</Section>
    <Section id="about">ABOUT ME</Section>
  </ScrollingProvider>
);

Using SectionLinks (Dynamic Menu)

import React from 'react';
import {
  ScrollingProvider,
  useScrollSections,
  Section,
} from 'react-scroll-section';

export const DynamicMenu = () => {
  const sections = useScrollSections();

  return (
    <ul>
      {sections.map(({ id, onClick, selected }) => (
        <li key={id} onClick={onClick} selected={selected}>
          {id.toUpperCase()}
        </li>
      ))}
    </ul>
  );
};

const App = () => (
  <ScrollingProvider>
    <DynamicMenu />
    <Section id="home">Home section</Section>
    <Section id="about">About section</Section>
  </ScrollingProvider>
);

Props

ScrollingProvider

Property	Type	Required	Default	Description
debounceDelay	number	false	50	time to wait until the calculation of the current section
scrollBehavior	string	false	"smooth"	scrolling style
children	ReactNode	false	null	React component
offset	number	false	null	Vertical offset the modifies the final scrolling position

Section

Property	Type	Required	Default	Description
children	ReactNode	false	null	Section content
id	string	true	-	Section ID

Contributing 🧑‍💼

I'm always open for suggestions and improvements, so don't hesitate to open an Issue or new Pull Request.

Setup project

This project is using Yarn workspace, therefore check that you have Yarn as your package manager.

# Check if you have you Yarn install
> yarn -v
1.22.18

# Install dependencies
> yarn

Commands

# Builds library
> yarn build

# Starts demo app locally
> yarn start

# Run E2E tests
> yarn test

# Build library + demo app
> yarn build:demo

License 🔖

MIT.