React Scroll
Component for animating vertical scrolling.
Install
$ npm install react-scroll
Run
$ npm install $ npm test $ npm start
Examples
Checkout examples
Live example
$ npm start
Usage
// ES6 Imports import * as Scroll from 'react-scroll'; import { Link, Element , Events, animateScroll as scroll, scrollSpy, scroller } from 'react-scroll' // Or Access Link,Element,etc as follows let Link = Scroll.Link; let Element = Scroll.Element; let Events = Scroll.Events; let scroll = Scroll.animateScroll; let scrollSpy = Scroll.scrollSpy; // ES5 var React = require('react'); var Scroll = require('react-scroll'); var Link = Scroll.Link; var Element = Scroll.Element; var Events = Scroll.Events; var scroll = Scroll.animateScroll; var scrollSpy = Scroll.scrollSpy; 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); }); scrollSpy.update(); }, 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); }, handleSetActive: function(to) { console.log(to); }, render: function () { return ( <div> <Link activeClass="active" to="test1" spy={true} smooth={true} offset={50} duration={500} onSetActive={this.handleSetActive}> Test 1 </Link> <Link activeClass="active" to="test1" spy={true} smooth={true} offset={50} duration={500} delay={1000}> Test 2 (delay) </Link> <Link className="test6" to="anchor" spy={true} smooth={true} duration={500}> Test 6 (anchor) </Link> <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> <Link to="firstInsideContainer" containerId="containerElement"> Go to first element inside container </Link> <Link to="secondInsideContainer" containerId="containerElement"> Go to second element inside container </Link> <div className="element" id="containerElement"> <Element name="firstInsideContainer"> first element inside container </Element> <Element name="secondInsideContainer"> second element inside container </Element> </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
containerId - container to listen for scroll events and to perform scrolling in
spy - make Link selected when scroll is at its targets position
hashSpy - update hash based on spy, containerId has to be set to scroll a specific element.
smooth - animate the scrolling
offset - scroll additional px ( like padding )
duration - time of the scroll animation - can be a number or a function (
function (scrollDistanceInPx) { return duration; }
), that allows more granular control at run-time
delay - wait x milliseconds before scroll
isDynamic - in case the distance has to be recalculated - if you have content that expands etc.
onSetActive - invoke whenever link is being set to active
onSetInactive - invoke whenever link is lose the active status
ignoreCancelEvents - ignores events which cancel animated scrolling
<Link activeClass="active" to="target" spy={true} smooth={true} hashSpy={true} offset={50} duration={500} delay={1000} isDynamic={true} onSetActive={this.handleSetActive} onSetInactive={this.handleSetInactive} ignoreCancelEvents={false} > 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, containerId: 'ContainerElementID', offset: 50, // Scrolls to element + 50 pixels down the page ... })
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 ScrollLink = Scroll.ScrollLink; var ScrollElement = Scroll.ScrollElement; var Element = React.createClass({ render: function () { return ( <div {...this.props}> {this.props.children} </div> ); } }); module.exports = ScrollElement(Element); var Link = React.createClass({ render: function () { return ( <a {...this.props}> {this.props.children} </a> ); } }); module.exports = ScrollLink(Link);
Scroll Animations
Add a custom easing animation to the smooth option. This prop will accept a Boolean if you want the default, or any of the animations listed below
scroller.scrollTo('myScrollToElement', { duration: 1500, delay: 100, smooth: "easeInOutQuint", containerId: 'ContainerElementID', ... })
List of currently available animations:
linear - no easing, no acceleration. easeInQuad - accelerating from zero velocity. easeOutQuad - decelerating to zero velocity. easeInOutQuad - acceleration until halfway, then deceleration. easeInCubic - accelerating from zero velocity. easeOutCubic - decelerating to zero velocity. easeInOutCubic - acceleration until halfway, then deceleration. easeInQuart - accelerating from zero velocity. easeOutQuart - decelerating to zero velocity. easeInOutQuart - acceleration until halfway, then deceleration. easeInQuint - accelerating from zero velocity. easeOutQuint - decelerating to zero velocity. easeInOutQuint - acceleration until halfway, then deceleration.
A good visual reference can be found at easings.net