nbrady-techempower / react-scroll

React scroll component

React Scroll

Directive for basic scrolling and smooth scrolling.

Install

$ npm install react-scroll

Run

$ npm install
$ npm test
$ npm run examples

Examples

Checkout examples

Basic

Live Or Code

Usage

var React   = require('react');
var Scroll  = require('react-scroll');

var Link       = Scroll.Link;
var DirectLink = Scroll.DirectLink;
var Element    = Scroll.Element;
var Events     = Scroll.Events;
var scroll     = Scroll.animateScroll;

var Section = React.createClass({
  componentDidMount: function() {

    Events.scrollEvent.register('begin', function(to, element) {
      console.log("begin", arguments);
    });

    Events.scrollEvent.register('end', function(to, element) {
      console.log("end", arguments);
    });

  },
  componentWillUnmount: function() {
    Events.scrollEvent.remove('begin');
    Events.scrollEvent.remove('end');
  },
  scrollToTop: function() {
    scroll.scrollToTop();
  },
  scrollToBottom: function() {
    scroll.scrollToBottom();
  },
  scrollTo: function() {
    scroll.scrollTo(100);
  },
  scrollMore: function() {
    scroll.scrollMore(100);
  },
  render: function () {
  	return (
      <div>
        <Link activeClass="active" to="test1" spy={true} smooth={true} offset={50} duration={500} >
          Test 1
        </Link>
        <Link activeClass="active" to="test1" spy={true} smooth={true} offset={50} duration={500} delay={1000}>
          Test 2 (delay)
        </Link>
        <DirectLink className="test6" to="anchor" spy={true} smooth={true} duration={500}>
          Test 6 (anchor)
        </DirectLink>
        <Button activeClass="active" className="btn" type="submit" value="Test 2" to="test2" spy={true} smooth={true} offset={50} duration={500} >
          Test 2
        </Button>

        <Element name="test1" className="element">
          test 1
        </Element>

        <Element name="test2" className="element">
          test 2
        </Element>

        <div id="anchor" className="element">
          test 6 (anchor)
        </div>

        <a onClick={this.scrollToTop}>To the top!</a>
        <br/>
        <a onClick={this.scrollToBottom}>To the bottom!</a>
        <br/>
        <a onClick={this.scrollTo}>Scroll to 100px from the top</a>
        <br/>
        <a onClick={this.scrollMore}>Scroll 100px more from the current position!</a>
      </div>
	);
  }
});

React.render(
  <Section />,
  document.getElementById('example')
);

Props/Options

activeClass - class applied when element is reached

to - target to scroll to

spy - make Link selected when scroll is at it's targets position

smooth - animate the scrolling

offset - scroll additional px ( like padding )

duration - time of the scroll animation

delay - wait x seconds before scroll

isDynamic - in case the distance has to be recalculated - if you have content that expands etc.

<Link activeClass="active"
      to="target"
      spy={true}
      smooth={true}
      offset={50}
      duration={500}
      delay={1000}
      isDynamic={true}
>
  Your name
</Link>

Scroll Methods

Scroll To Top

var Scroll = require('react-scroll');
var scroll = Scroll.animateScroll;

scroll.scrollToTop(options);

Scroll To Bottom

var Scroll = require('react-scroll');
var scroll = Scroll.animateScroll;

scroll.scrollToBottom(options);

Scroll To (position)

var Scroll = require('react-scroll');
var scroll = Scroll.animateScroll;

scroll.scrollTo(100, options);

Scroll To (Element)

animateScroll.scrollTo(positionInPixels, props = {});

var Scroll = require('react-scroll');
var Element = Scroll.Element;
var scroller = Scroll.scroller;

<Element name="myScrollToElement"></Element>

// Somewhere else, even another file
scroller.scrollTo('myScrollToElement', {
  duration: 1500,
  delay: 100,
  smooth: true,
})

Scroll More (px)

var Scroll = require('react-scroll');
var scroll = Scroll.animateScroll;

scroll.scrollMore(10, options);

Scroll events

begin - start of the scrolling

var Scroll = require('react-scroll');
var Events = Scroll.Events;

Events.scrollEvent.register('begin', function(to, element) {
  console.log("begin", to, element);
});

end - end of the scrolling/animation

Events.scrollEvent.register('end', function(to, element) {
  console.log("end", to, element);
});

Remove events

Events.scrollEvent.remove('begin');
Events.scrollEvent.remove('end');

Create your own Link/Element

Simply just pass your component to one of the high order components (Element/Scroll)

var React   = require('react');
var Scroll  = require('react-scroll');
var Helpers = Scroll.Helpers;

var Element = React.createClass({
  render: function () {
    return (
      <div>
        {this.props.children}
      </div>
    );
  }
});

module.exports = Helpers.Element(Element);

var Link = React.createClass({
  render: function () {
    return (
      <a>
        {this.props.children}
      </a>
    );
  }
});

module.exports = Helpers.Scroll(Link);

Changelog

v1.0.17

• isDynamic property has been added. To allow scrollSpy to recalculate components that expand

Things that needs to be done - feel free to contribute.

• Being able to use react-scroll within a div.
• Integrate react-scroll with react-router
• Hash-scrolling.