how to create a automatic slideshow in react code example
Example: Automatic Slideshow in react js
import React from 'react';
import SlidesShowStore from '../stores/SlidesShowStore';
import SlidesShowActions from '../actions/SlidesShowActions';
import Slides from '../components/Slides';
class SlidesShow extends React.Component {
constructor(props) {
super(props);
this.state = SlidesShowStore.getState();
this.onChange = this.onChange.bind(this);
this.IMAGES = [];
}
componentDidMount() {
SlidesShowStore.listen(this.onChange);
this.tick();
SlidesShowActions.startTimer();
this.handleChange();
}
componentWillUnmount() {
SlidesShowStore.unlisten(this.onChange);
}
onChange(state) {
this.setState(state);
}
handleChange() {
this.setState(SlidesShowStore.getState());
}
toggleNext( event) {
event.preventDefault();
var current = this.state.currentSlide;
var next = current + 1;
if (next > this.IMAGES.length - 1) {
next = 0;
}
this.setState( {currentSlide: next} );
}
togglePrev(event) {
event.preventDefault();
var current = this.state.currentSlide;
var prev = current - 1;
if (prev < 0) {
prev = this.IMAGES.length - 1;
}
this.setState( {currentSlide: prev} );
}
toggleSlide(id) {
var index = this.IMAGES.map(function (el) {
return (
el.id
);
});
var currentIndex = index.indexOf(id);
this.setState( {currentSlide: currentIndex} );
}
Next() {
var current = this.state.currentSlide;
var next = current + 1;
if (next > this.IMAGES.length - 1) {
next = 0;
}
this.setState( {currentSlide: next} );
}
tick() {
var self = this;
this.interval = setTimeout(function() {
if (self.state.status === 'stop') {
self.interval = undefined;
return;
}
if (self.state.timeLeft <= 0) {
SlidesShowActions.timeout();
} else {
SlidesShowActions.tick();
self.Next();
}
self.tick();
}, 1000);
}
handleClickStart(event) {
event.preventDefault();
this.tick();
SlidesShowActions.startTimer();
this.handleChange();
}
handleClickStop(event) {
event.preventDefault();
SlidesShowActions.stopTimer();
this.handleChange();
}
handleClickReset(event) {
event.preventDefault();
SlidesShowActions.resetTimer();
}
render() {
this.IMAGES = [
{id: "slide1", imagePath : "/img/img1.jpg", imageAlt : "Slide 1 Image", title : "Slide 1", subtitle : "Slide 1 Image SubTitle", text : "Slide 1 Image Text", action : "Slide 1 Image Action", actionHref : "href" },
{id: "slide2", imagePath : "/img/img2.jpg", imageAlt : "Slide 2 Image", title : "Slide 2", subtitle : "Slide 2 Image SubTitle", text : "Slide 2 Image Text", action : "Slide 2 Image Action", actionHref : "href" },
{id: "slide3", imagePath : "/img/img3.jpg", imageAlt : "Slide 3 Image", title : "Slide 3", subtitle : "Slide 3 Image SubTitle", text : "Slide 3 Image Text", action : "Slide 3 Image Action", actionHref : "href" }
];
var self = this;
var paginationNodes = this.IMAGES.map(function (paginationNode, i) {
var boundClick = self.toggleSlide.bind(self, paginationNode.id);
return (
<span className="pager" onClick={boundClick}> key={paginationNode.Title} </span>
);
});
return (
<div className="container">
<div className="slideshow">
<link rel="stylesheet" href="css/styles.css" />
<Slides data={this.IMAGES} currentSlide={this.state.currentSlide} />
<div className="pagination">{paginationNodes}</div>
<div className="toggle toggle--prev" onClick={this.togglePrev.bind(this)}>Prev</div>
<div className="toggle toggle--next" onClick={this.toggleNext.bind(this)}>Next</div>
<button onClick={this.handleClickStart.bind(this)}>Start</button>
<button onClick={this.handleClickStop.bind(this)}>Stop</button>
<button onClick={this.handleClickReset.bind(this)}>Reset</button>
</div>
</div>
);
}
}
export default SlidesShow;