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A ReactJS based carousel. No dom manipulation, no jQuery, all based on ReactJS states and intelligent rendering and the aid of `ReactCSSTransitionGroup`. Check also the css: https://gist.github.com/zimok/10018721
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| `/** @jsx React.DOM */` | |
| classSet = React.addons.classSet | |
| ReactCSSTransitionGroup = React.addons.CSSTransitionGroup | |
| ReactTransitionGroup = React.addons.TransitionGroup | |
| CarouselStateMixin = | |
| propTypes: | |
| items: React.PropTypes.array | |
| getInitialState: -> | |
| index: 0 | |
| activeItems: [@props.items[0]] | |
| direction: 'forward' | |
| setActiveItem: (index, direction) -> | |
| newItem = @props.items[index] | |
| newItems = @state.activeItems | |
| newItems.pop() | |
| newItems.unshift(newItem) | |
| @setState | |
| index: index | |
| activeItems: newItems | |
| direction: direction | |
| handleNext: (e) -> | |
| e.preventDefault() | |
| index = @state.index | |
| index += 1 | |
| if index == @props.items.length | |
| index = 0 | |
| @setActiveItem index, 'forward' | |
| handlePrevious: (e) -> | |
| e.preventDefault() | |
| index = @state.index | |
| index -= 1 | |
| if index < 0 | |
| index = @props.items.length - 1 | |
| @setActiveItem index, 'backward' | |
| CarouselControls = React.createClass | |
| render: -> | |
| `<div className="carousel-controls"> | |
| <a href="" onClick={this.handlePrevious}>prev</a> | |
| <a href="" onClick={this.handleNext}>next</a> | |
| </div>` | |
| handleNext: (e) -> | |
| @props.onNext(e) | |
| handlePrevious: (e) -> | |
| @props.onPrevious(e) | |
| CarouselItem = React.createClass | |
| render: -> | |
| classes = classSet | |
| 'carousel-item': true | |
| active: @props.active | |
| `<div className={classes}> | |
| {this.props.itemComponent({item: this.props.item})} | |
| </div>` | |
| Carousel = React.createClass | |
| mixins: [CarouselStateMixin] | |
| render: -> | |
| self = @ | |
| children = @state.activeItems.map (item, i) -> | |
| `<CarouselItem | |
| item={item} | |
| key={item.key} | |
| active={i==self.state.index} | |
| itemComponent={self.props.itemComponent} | |
| />` | |
| `<div className={"carousel " + this.state.direction}> | |
| <ReactCSSTransitionGroup transitionName='slide'> | |
| {children} | |
| </ReactCSSTransitionGroup> | |
| <CarouselControls onNext={this.handleNext} onPrevious={this.handlePrevious}/> | |
| </div>` | |
| # example | |
| carouselItems = [ | |
| { | |
| 'title': 'item 1', | |
| 'img': 'http://placehold.it/400x400', | |
| 'key': 1 | |
| }, | |
| { | |
| 'title': 'item 2', | |
| 'img': 'http://placehold.it/400x400', | |
| 'key': 2 | |
| }, | |
| { | |
| 'title': 'item 3', | |
| 'img': 'http://placehold.it/400x400', | |
| 'key': 3 | |
| } | |
| ] | |
| CarouselCustomItem = React.createClass | |
| render: -> | |
| `<div>i'm the custom item: {this.props.item.title}</div>` | |
| CarouselExample = React.createClass | |
| render: -> | |
| `<Carousel items={carouselItems} itemComponent={CarouselCustomItem} />` | |
| mountNode = document.getElementById 'content' | |
| React.renderComponent `<CarouselExample />`, mountNode |
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