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March 1, 2017 00:29
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Web Design 1 Javascript Slider Code
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| #slider { | |
| margin: 2em auto; | |
| width: 960px; | |
| overflow: hidden; | |
| } | |
| #slider-wrapper { | |
| width: 9999px; | |
| height: 300px; | |
| position: relative; | |
| transition: left 400ms linear; | |
| } | |
| .slide { | |
| float: left; | |
| width: 960px; | |
| height: 300px; | |
| position: relative; | |
| overflow: hidden; | |
| } | |
| .slide img { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| } | |
| .caption { | |
| margin: 0; | |
| position: absolute; | |
| z-index: 100; | |
| bottom: -2em; | |
| left: 0; | |
| width: 100%; | |
| height: 2em; | |
| line-height: 2; | |
| text-align: center; | |
| background: rgba( 0, 0, 0, 0.6 ); | |
| color: #fff; | |
| transition: bottom 500ms ease-in; | |
| } | |
| .caption.visible { | |
| bottom: 0; | |
| } | |
| #slider-nav { | |
| margin: 1em 0; | |
| text-align: center; | |
| } | |
| #slider-nav a { | |
| width: 2em; | |
| height: 2em; | |
| border: 1px solid #ccc; | |
| text-align: center; | |
| text-decoration: none; | |
| color: #000; | |
| display: inline-block; | |
| line-height: 2; | |
| margin-right: 0.5em; | |
| } | |
| #slider-nav a.current { | |
| border-color: #000; | |
| } |
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| <!DOCTYPE> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="slider.js"></script> | |
| <link rel="stylesheet" type="text/css" href="slider.css"/> | |
| </head> | |
| <body> | |
| <div id="slider"> | |
| <div id="slider-wrapper"> | |
| <div class="slide"> | |
| <img src="http://lorempixel.com/960/300/sports" alt="" /> | |
| <p class="caption">Caption 1</p> | |
| </div> | |
| <div class="slide"> | |
| <img src="http://lorempixel.com/960/300/business" alt="" /> | |
| <p class="caption">Caption 2</p> | |
| </div> | |
| <div class="slide"> | |
| <img src="http://lorempixel.com/960/300/animals" alt="" /> | |
| <p class="caption">Caption 3</p> | |
| </div> | |
| <div class="slide"> | |
| <img src="http://lorempixel.com/960/300/food" alt="" /> | |
| <p class="caption">Caption 4</p> | |
| </div> | |
| <div class="slide"> | |
| <img src="http://lorempixel.com/960/300/nature" alt="" /> | |
| <p class="caption">Caption 5</p> | |
| </div> | |
| </div> | |
| <div id="slider-nav"> | |
| <a href="#" data-slide="0">1</a> | |
| <a href="#" data-slide="1">2</a> | |
| <a href="#" data-slide="2">3</a> | |
| <a href="#" data-slide="3">4</a> | |
| <a href="#" data-slide="4">5</a> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
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| function Slider( element ) { | |
| this.el = document.querySelector( element ); | |
| this.init(); | |
| } | |
| Slider.prototype = { | |
| init: function() { | |
| this.links = this.el.querySelectorAll( "#slider-nav a" ); | |
| this.wrapper = this.el.querySelector( "#slider-wrapper" ); | |
| this.navigate(); | |
| }, | |
| navigate: function() { | |
| for( var i = 0; i < this.links.length; ++i ) { | |
| var link = this.links[i]; | |
| this.slide( link ); | |
| } | |
| }, | |
| animate: function( slide ) { | |
| var parent = slide.parentNode; | |
| var caption = slide.querySelector( ".caption" ); | |
| var captions = parent.querySelectorAll( ".caption" ); | |
| for( var k = 0; k < captions.length; ++k ) { | |
| var cap = captions[k]; | |
| if( cap !== caption ) { | |
| cap.classList.remove( "visible" ); | |
| } | |
| } | |
| caption.classList.add( "visible" ); | |
| }, | |
| slide: function( element ) { | |
| var self = this; | |
| element.addEventListener( "click", function( e ) { | |
| e.preventDefault(); | |
| var a = this; | |
| self.setCurrentLink( a ); | |
| var index = parseInt( a.getAttribute( "data-slide" ), 10 ) + 1; | |
| var currentSlide = self.el.querySelector( ".slide:nth-child(" + index + ")" ); | |
| self.wrapper.style.left = "-" + currentSlide.offsetLeft + "px"; | |
| self.animate( currentSlide ); | |
| }, false); | |
| }, | |
| setCurrentLink: function( link ) { | |
| var parent = link.parentNode; | |
| var a = parent.querySelectorAll( "a" ); | |
| link.className = "current"; | |
| for( var j = 0; j < a.length; ++j ) { | |
| var cur = a[j]; | |
| if( cur !== link ) { | |
| cur.className = ""; | |
| } | |
| } | |
| } | |
| }; | |
| document.addEventListener( "DOMContentLoaded", function() { | |
| var aSlider = new Slider( "#slider" ); | |
| }); |
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