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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <style> | |
| #my-carousel { border: 1px solid #000; padding: 10px; } | |
| .carousel-item { display: none; position: relative; padding: 0 30px;} | |
| .carousel-item .carousel-prev { position: absolute; left: 0; } | |
| .carousel-item .carousel-next { position: absolute; right: 0; } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>A fade-transition Backbone carousel</h1> | |
| <p>Define a container, and place carousel items inside, each with a | |
| class of <code>carousel-item</code>. Clicks on anything with class <code>carousel-prev</code> and | |
| <code>carousel-next</code> will advance the carousel. Pass a selector for the top-level container | |
| into the constructor as <code>el</code>.</p> | |
| <p>There is minimal style here. It's only important to hide all of the <code>carousel-item</code>s and allow the Backbone view to manage their visibility.</p> | |
| <div id="my-carousel"> | |
| <div class="carousel-item"> | |
| <button class="carousel-prev">«</button> | |
| Item One | |
| <button class="carousel-next">»</button> | |
| </div> | |
| <div class="carousel-item"> | |
| <button class="carousel-prev">«</button> | |
| Item Two | |
| <button class="carousel-next">»</button> | |
| </div> | |
| <div class="carousel-item"> | |
| <button class="carousel-prev">«</button> | |
| Item Three | |
| <button class="carousel-next">»</button> | |
| </div> | |
| </div> | |
| <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> | |
| <script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.2/underscore-min.js"></script> | |
| <script src="http://cdnjs.cloudflare.com/ajax/libs/backbone.js/0.9.2/backbone-min.js"></script> | |
| <script> | |
| Carousel = Backbone.View.extend({ | |
| events: { | |
| 'click .carousel-prev': 'prev', | |
| 'click .carousel-next': 'next' | |
| }, | |
| initialize: function(options) { | |
| _.bindAll(this); | |
| this.items = _.map(this.$('.carousel-item').hide(), function(i) { return i; }); | |
| this.current = 0; | |
| }, | |
| render: function() { | |
| $(this.items[this.current]).show(); | |
| return this; | |
| }, | |
| prev: function() { | |
| $(this.items[this.current]).fadeOut(function() { | |
| this.current = this.current - 1; | |
| if (this.current === -1) { this.current = this.items.length - 1 } | |
| $(this.items[this.current]).fadeIn(); | |
| }.bind(this)); | |
| }, | |
| next: function() { | |
| $(this.items[this.current]).fadeOut(function() { | |
| this.current = this.current + 1; | |
| if (this.current === this.items.length) { this.current = 0 } | |
| $(this.items[this.current]).fadeIn(); | |
| }.bind(this)); | |
| } | |
| }); | |
| var carousel = new Carousel({el: '#my-carousel'}).render(); | |
| </script> | |
| </body> | |
| </html> |
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