打开这个地址>>强大的支持手机端响应式的jQuery焦点图轮播特效插件bxslider.js(右键查看源代码)
bxSlider官网：http://bxslider.com/
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只要根据项目实际需求自行调整和搭配参数即可实现各种效果，下面贴上基础示例程序：
Html:
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <script type="text/javascript" src="js/jquery-1.9.1.min.js"></script> 6 <script type="text/javascript" src="js/jquery.bxslider.js"></script> 7 <title>强大的支持手机端响应式的jQuery焦点图轮播特效插件bxslider.js</title> 8 <link href="css/jquery.bxslider.css" rel="stylesheet" type="text/css"> 9 <style> 10 p{ width:100%; height:40px; font-size:20px; color:#333; line-height:40px; text-align:center; font-family:"微软雅黑"} 11 </style> 12 </head> 13 14 <body> 15 <!-- ---------------------------------slider1--------------------------------------------- --> 16 <p>slider1(maxSlides)</p> 17 <div class="slider1"> 18 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar1"></div> 19 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar2"></div> 20 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar3"></div> 21 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar4"></div> 22 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar5"></div> 23 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar6"></div> 24 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar7"></div> 25 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar8"></div> 26 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar9"></div> 27 </div> 28 <script type="text/javascript"> 29 $(document).ready(function(){ 30 $('.slider1').bxSlider({ 31 slideWidth: 200, 32 minSlides: 2, 33 maxSlides: 3, 34 slideMargin: 10 35 }); 36 }); 37 </script> 38 39 <!-- ---------------------------------slider2--------------------------------------------- --> 40 <p>slider2(slideWidth auto)</p> 41 <div class="slider2"> 42 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar1"></div> 43 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar2"></div> 44 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar3"></div> 45 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar4"></div> 46 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar5"></div> 47 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar6"></div> 48 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar7"></div> 49 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar8"></div> 50 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar9"></div> 51 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar10"></div> 52 </div> 53 <script type="text/javascript"> 54 $(document).ready(function(){ 55 $('.slider2').bxSlider({ 56 slideWidth: 300, 57 auto: true, 58 autoControls: true, 59 minSlides: 2, 60 maxSlides: 2, 61 slideMargin: 10 62 }); 63 }); 64 </script> 65 66 <!-- ---------------------------------slider3--------------------------------------------- --> 67 <p>slider3(moveSlides)</p> 68 <div class="slider3"> 69 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar1"></div> 70 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar2"></div> 71 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar3"></div> 72 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar4"></div> 73 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar5"></div> 74 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar6"></div> 75 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar7"></div> 76 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar8"></div> 77 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar9"></div> 78 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar10"></div> 79 </div> 80 <script type="text/javascript"> 81 $(document).ready(function(){ 82 $('.slider3').bxSlider({ 83 slideWidth: 200, 84 minSlides: 2, 85 maxSlides: 3, 86 moveSlides: 1, 87 slideMargin: 10 88 }); 89 }); 90 </script> 91 92 93 94 <!-- ---------------------------------slider4--------------------------------------------- --> 95 <p>slider4(startSlide)</p> 96 <div class="slider4"> 97 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar1"></div> 98 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar2"></div> 99 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar3"></div> 100 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar4"></div> 101 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar5"></div> 102 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar6"></div> 103 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar7"></div> 104 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar8"></div> 105 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar9"></div> 106 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar10"></div> 107 </div> 108 <script type="text/javascript"> 109 $(document).ready(function(){ 110 $('.slider4').bxSlider({ 111 slideWidth: 200, 112 minSlides: 2, 113 maxSlides: 3, 114 moveSlides: 1, 115 startSlide: 1, 116 slideMargin: 10 117 }); 118 }); 119 </script> 120 121 122 123 <!-- ---------------------------------slider5--------------------------------------------- --> 124 <p>slider5(Vertical)</p> 125 <div class="slider5"> 126 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar1"></div> 127 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar2"></div> 128 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar3"></div> 129 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar4"></div> 130 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar5"></div> 131 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar6"></div> 132 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar7"></div> 133 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar8"></div> 134 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar9"></div> 135 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar10"></div> 136 </div> 137 <script type="text/javascript"> 138 $(document).ready(function(){ 139 $('.slider5').bxSlider({ 140 mode: 'vertical', 141 slideWidth: 200, 142 minSlides: 2, 143 slideMargin: 10 144 }); 145 }); 146 </script> 147 148 149 150 <!-- ---------------------------------slider6--------------------------------------------- --> 151 <p>slider6(Image)</p> 152 <div class="slider6"> 153 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar1"></div> 154 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar2"></div> 155 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar3"></div> 156 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar4"></div> 157 </div> 158 <script type="text/javascript"> 159 $(document).ready(function(){ 160 $('.slider6').bxSlider({ 161 mode: 'fade', 162 slideWidth: 600, 163 slideMargin: 10 164 }); 165 }); 166 </script> 167 168 169 170 <!-- ---------------------------------slider7--------------------------------------------- --> 171 <p>slider7(infiniteLoop hideControlOnEnd)</p> 172 <div class="slider7"> 173 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar1"></div> 174 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar2"></div> 175 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar3"></div> 176 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar4"></div> 177 </div> 178 <script type="text/javascript"> 179 $(document).ready(function(){ 180 $('.slider7').bxSlider({ 181 slideWidth: 600, 182 infiniteLoop: false, 183 hideControlOnEnd: true, 184 slideMargin: 10 185 }); 186 }); 187 </script> 188 189 190 191 <!-- ---------------------------------slider8--------------------------------------------- --> 192 <p>slider8(adaptiveHeight)</p> 193 <div class="slider8"> 194 <div class="slide"><img src="http://placehold.it/600x200&text=FooBar1"></div> 195 <div class="slide"><img src="http://placehold.it/600x300&text=FooBar2"></div> 196 <div class="slide"><img src="http://placehold.it/600x150&text=FooBar3"></div> 197 <div class="slide"><img src="http://placehold.it/600x250&text=FooBar4"></div> 198 </div> 199 <script type="text/javascript"> 200 $(document).ready(function(){ 201 $('.slider8').bxSlider({ 202 slideWidth: 600, 203 adaptiveHeight: true, 204 startSlides: 0, 205 slideMargin: 10 206 }); 207 }); 208 </script> 209 210 211 212 <!-- ---------------------------------slider9--------------------------------------------- --> 213 <p>slider9(ticker)</p> 214 <div class="slider9"> 215 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar1"></div> 216 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar2"></div> 217 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar3"></div> 218 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar4"></div> 219 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar5"></div> 220 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar6"></div> 221 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar7"></div> 222 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar8"></div> 223 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar9"></div> 224 <div class="slide"><img src="http://placehold.it/350x150&text=FooBar10"></div> 225 </div> 226 <script type="text/javascript"> 227 $(document).ready(function(){ 228 $('.slider9').bxSlider({ 229 slideWidth: 200, 230 minSlides: 3, 231 maxSlides: 3, 232 ticker: true, 233 speed: 12000, 234 startSlides: 0, 235 slideMargin: 10 236 }); 237 }); 238 </script> 239 </body> 240 </html>
Css:
1 /** 2 * BxSlider v4.1.2 - Fully loaded, responsive content slider 3 * http://bxslider.com 4 * 5 * Written by: Steven Wanderski, 2014 6 * http://stevenwanderski.com 7 * (while drinking Belgian ales and listening to jazz) 8 * 9 * CEO and founder of bxCreative, LTD 10 * http://bxcreative.com 11 */ 12 13 14 /** RESET AND LAYOUT 15 ===================================*/ 16 17 .bx-wrapper { 18 position: relative; 19 margin: 0 auto 60px; 20 padding: 0; 21 *zoom: 1; 22 } 23 24 .bx-wrapper img { 25 max-width: 100%; 26 display: block; 27 } 28 29 /** THEME 30 ===================================*/ 31 32 .bx-wrapper .bx-viewport { 33 -moz-box-shadow: 0 0 5px #ccc; 34 -webkit-box-shadow: 0 0 5px #ccc; 35 box-shadow: 0 0 5px #ccc; 36 border: 5px solid #fff; 37 left: -5px; 38 background: #fff; 39 40 /*fix other elements on the page moving (on Chrome)*/ 41 -webkit-transform: translatez(0); 42 -moz-transform: translatez(0); 43 -ms-transform: translatez(0); 44 -o-transform: translatez(0); 45 transform: translatez(0); 46 } 47 48 .bx-wrapper .bx-pager, 49 .bx-wrapper .bx-controls-auto { 50 position: absolute; 51 bottom: -30px; 52 width: 100%; 53 } 54 55 /* LOADER */ 56 57 .bx-wrapper .bx-loading { 58 min-height: 50px; 59 background: url(../images/bx_loader.gif) center center no-repeat #fff; 60 height: 100%; 61 width: 100%; 62 position: absolute; 63 top: 0; 64 left: 0; 65 z-index: 2000; 66 } 67 68 /* PAGER */ 69 70 .bx-wrapper .bx-pager { 71 text-align: center; 72 font-size: .85em; 73 font-family: Arial; 74 font-weight: bold; 75 color: #666; 76 padding-top: 20px; 77 } 78 79 .bx-wrapper .bx-pager .bx-pager-item, 80 .bx-wrapper .bx-controls-auto .bx-controls-auto-item { 81 display: inline-block; 82 *zoom: 1; 83 *display: inline; 84 } 85 86 .bx-wrapper .bx-pager.bx-default-pager a { 87 background: #666; 88 text-indent: -9999px; 89 display: block; 90 width: 10px; 91 height: 10px; 92 margin: 0 5px; 93 outline: 0; 94 -moz-border-radius: 5px; 95 -webkit-border-radius: 5px; 96 border-radius: 5px; 97 } 98 99 .bx-wrapper .bx-pager.bx-default-pager a:hover, 100 .bx-wrapper .bx-pager.bx-default-pager a.active { 101 background: #000; 102 } 103 104 /* DIRECTION CONTROLS (NEXT / PREV) */ 105 106 .bx-wrapper .bx-prev { 107 left: 10px; 108 background: url(../images/controls.png) no-repeat 0 -32px; 109 } 110 111 .bx-wrapper .bx-next { 112 right: 10px; 113 background: url(../images/controls.png) no-repeat -43px -32px; 114 } 115 116 .bx-wrapper .bx-prev:hover { 117 background-position: 0 0; 118 } 119 120 .bx-wrapper .bx-next:hover { 121 background-position: -43px 0; 122 } 123 124 .bx-wrapper .bx-controls-direction a { 125 position: absolute; 126 top: 50%; 127 margin-top: -16px; 128 outline: 0; 129 width: 32px; 130 height: 32px; 131 text-indent: -9999px; 132 z-index: 9999; 133 } 134 135 .bx-wrapper .bx-controls-direction a.disabled { 136 display: none; 137 } 138 139 /* AUTO CONTROLS (START / STOP) */ 140 141 .bx-wrapper .bx-controls-auto { 142 text-align: center; 143 } 144 145 .bx-wrapper .bx-controls-auto .bx-start { 146 display: block; 147 text-indent: -9999px; 148 width: 10px; 149 height: 11px; 150 outline: 0; 151 background: url(../images/controls.png) -86px -11px no-repeat; 152 margin: 0 3px; 153 } 154 155 .bx-wrapper .bx-controls-auto .bx-start:hover, 156 .bx-wrapper .bx-controls-auto .bx-start.active { 157 background-position: -86px 0; 158 } 159 160 .bx-wrapper .bx-controls-auto .bx-stop { 161 display: block; 162 text-indent: -9999px; 163 width: 9px; 164 height: 11px; 165 outline: 0; 166 background: url(../images/controls.png) -86px -44px no-repeat; 167 margin: 0 3px; 168 } 169 170 .bx-wrapper .bx-controls-auto .bx-stop:hover, 171 .bx-wrapper .bx-controls-auto .bx-stop.active { 172 background-position: -86px -33px; 173 } 174 175 /* PAGER WITH AUTO-CONTROLS HYBRID LAYOUT */ 176 177 .bx-wrapper .bx-controls.bx-has-controls-auto.bx-has-pager .bx-pager { 178 text-align: left; 179 width: 80%; 180 } 181 182 .bx-wrapper .bx-controls.bx-has-controls-auto.bx-has-pager .bx-controls-auto { 183 right: 0; 184 width: 35px; 185 } 186 187 /* IMAGE CAPTIONS */ 188 189 .bx-wrapper .bx-caption { 190 position: absolute; 191 bottom: 0; 192 left: 0; 193 background: #6669; 194 background: rgba(80, 80, 80, 0.75); 195 width: 100%; 196 } 197 198 .bx-wrapper .bx-caption span { 199 color: #fff; 200 font-family: Arial; 201 display: block; 202 font-size: .85em; 203 padding: 10px; 204 }
Js:
1 /** 2 * BxSlider v4.1.2 - Fully loaded, responsive content slider 3 * http://bxslider.com 4 * 5 * Copyright 2014, Steven Wanderski - http://stevenwanderski.com - http://bxcreative.com 6 * Written while drinking Belgian ales and listening to jazz 7 * 8 * Released under the MIT license - http://opensource.org/licenses/MIT 9 */ 10 11 ;(function($){ 12 13 var plugin = {}; 14 15 var defaults = { 16 17 // GENERAL 18 mode: 'horizontal', 19 slideSelector: '', 20 infiniteLoop: true, 21 hideControlOnEnd: false, 22 speed: 500, 23 easing: null, 24 slideMargin: 0, 25 startSlide: 0, 26 randomStart: false, 27 captions: false, 28 ticker: false, 29 tickerHover: false, 30 adaptiveHeight: false, 31 adaptiveHeightSpeed: 500, 32 video: false, 33 useCSS: true, 34 preloadImages: 'visible', 35 responsive: true, 36 slideZIndex: 50, 37 wrapperClass: 'bx-wrapper', 38 39 // TOUCH 40 touchEnabled: true, 41 swipeThreshold: 50, 42 oneToOneTouch: true, 43 preventDefaultSwipeX: true, 44 preventDefaultSwipeY: false, 45 46 // PAGER 47 pager: true, 48 pagerType: 'full', 49 pagerShortSeparator: ' / ', 50 pagerSelector: null, 51 buildPager: null, 52 pagerCustom: null, 53 54 // CONTROLS 55 controls: true, 56 nextText: 'Next', 57 prevText: 'Prev', 58 nextSelector: null, 59 prevSelector: null, 60 autoControls: false, 61 startText: 'Start', 62 stopText: 'Stop', 63 autoControlsCombine: false, 64 autoControlsSelector: null, 65 66 // AUTO 67 auto: false, 68 pause: 4000, 69 autoStart: true, 70 autoDirection: 'next', 71 autoHover: false, 72 autoDelay: 0, 73 autoSlideForOnePage: false, 74 75 // CAROUSEL 76 minSlides: 1, 77 maxSlides: 1, 78 moveSlides: 0, 79 slideWidth: 0, 80 81 // CALLBACKS 82 onSliderLoad: function() {}, 83 onSlideBefore: function() {}, 84 onSlideAfter: function() {}, 85 onSlideNext: function() {}, 86 onSlidePrev: function() {}, 87 onSliderResize: function() {} 88 } 89 90 $.fn.bxSlider = function(options){ 91 92 if(this.length == 0) return this; 93 94 // support mutltiple elements 95 if(this.length > 1){ 96 this.each(function(){$(this).bxSlider(options)}); 97 return this; 98 } 99 100 // create a namespace to be used throughout the plugin 101 var slider = {}; 102 // set a reference to our slider element 103 var el = this; 104 plugin.el = this; 105 106 /** 107 * Makes slideshow responsive 108 */ 109 // first get the original window dimens (thanks alot IE) 110 var windowWidth = $(window).width(); 111 var windowHeight = $(window).height(); 112 113 114 115 /** 116 * =================================================================================== 117 * = PRIVATE FUNCTIONS 118 * =================================================================================== 119 */ 120 121 /** 122 * Initializes namespace settings to be used throughout plugin 123 */ 124 var init = function(){ 125 // merge user-supplied options with the defaults 126 slider.settings = $.extend({}, defaults, options); 127 // parse slideWidth setting 128 slider.settings.slideWidth = parseInt(slider.settings.slideWidth); 129 // store the original children 130 slider.children = el.children(slider.settings.slideSelector); 131 // check if actual number of slides is less than minSlides / maxSlides 132 if(slider.children.length < slider.settings.minSlides) slider.settings.minSlides = slider.children.length; 133 if(slider.children.length < slider.settings.maxSlides) slider.settings.maxSlides = slider.children.length; 134 // if random start, set the startSlide setting to random number 135 if(slider.settings.randomStart) slider.settings.startSlide = Math.floor(Math.random() * slider.children.length); 136 // store active slide information 137 slider.active = { index: slider.settings.startSlide } 138 // store if the slider is in carousel mode (displaying / moving multiple slides) 139 slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1; 140 // if carousel, force preloadImages = 'all' 141 if(slider.carousel) slider.settings.preloadImages = 'all'; 142 // calculate the min / max width thresholds based on min / max number of slides 143 // used to setup and update carousel slides dimensions 144 slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin); 145 slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 146 // store the current state of the slider (if currently animating, working is true) 147 slider.working = false; 148 // initialize the controls object 149 slider.controls = {}; 150 // initialize an auto interval 151 slider.interval = null; 152 // determine which property to use for transitions 153 slider.animProp = slider.settings.mode == 'vertical' ? 'top' : 'left'; 154 // determine if hardware acceleration can be used 155 slider.usingCSS = slider.settings.useCSS && slider.settings.mode != 'fade' && (function(){ 156 // create our test div element 157 var div = document.createElement('div'); 158 // css transition properties 159 var props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']; 160 // test for each property 161 for(var i in props){ 162 if(div.style[props[i]] !== undefined){ 163 slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase(); 164 slider.animProp = '-' + slider.cssPrefix + '-transform'; 165 return true; 166 } 167 } 168 return false; 169 }()); 170 // if vertical mode always make maxSlides and minSlides equal 171 if(slider.settings.mode == 'vertical') slider.settings.maxSlides = slider.settings.minSlides; 172 // save original style data 173 el.data("origStyle", el.attr("style")); 174 el.children(slider.settings.slideSelector).each(function() { 175 $(this).data("origStyle", $(this).attr("style")); 176 }); 177 // perform all DOM / CSS modifications 178 setup(); 179 } 180 181 /** 182 * Performs all DOM and CSS modifications 183 */ 184 var setup = function(){ 185 // wrap el in a wrapper 186 el.wrap('<div class="' + slider.settings.wrapperClass + '"><div class="bx-viewport"></div></div>'); 187 // store a namspace reference to .bx-viewport 188 slider.viewport = el.parent(); 189 // add a loading div to display while images are loading 190 slider.loader = $('<div class="bx-loading" />'); 191 slider.viewport.prepend(slider.loader); 192 // set el to a massive width, to hold any needed slides 193 // also strip any margin and padding from el 194 el.css({ 195 slider.settings.mode == 'horizontal' ? (slider.children.length * 100 + 215) + '%' : 'auto', 196 position: 'relative' 197 }); 198 // if using CSS, add the easing property 199 if(slider.usingCSS && slider.settings.easing){ 200 el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing); 201 // if not using CSS and no easing value was supplied, use the default JS animation easing (swing) 202 }else if(!slider.settings.easing){ 203 slider.settings.easing = 'swing'; 204 } 205 var slidesShowing = getNumberSlidesShowing(); 206 // make modifications to the viewport (.bx-viewport) 207 slider.viewport.css({ 208 '100%', 209 overflow: 'hidden', 210 position: 'relative' 211 }); 212 slider.viewport.parent().css({ 213 maxWidth: getViewportMaxWidth() 214 }); 215 // make modification to the wrapper (.bx-wrapper) 216 if(!slider.settings.pager) { 217 slider.viewport.parent().css({ 218 margin: '0 auto 0px' 219 }); 220 } 221 // apply css to all slider children 222 slider.children.css({ 223 'float': slider.settings.mode == 'horizontal' ? 'left' : 'none', 224 listStyle: 'none', 225 position: 'relative' 226 }); 227 // apply the calculated width after the float is applied to prevent scrollbar interference 228 slider.children.css('width', getSlideWidth()); 229 // if slideMargin is supplied, add the css 230 if(slider.settings.mode == 'horizontal' && slider.settings.slideMargin > 0) slider.children.css('marginRight', slider.settings.slideMargin); 231 if(slider.settings.mode == 'vertical' && slider.settings.slideMargin > 0) slider.children.css('marginBottom', slider.settings.slideMargin); 232 // if "fade" mode, add positioning and z-index CSS 233 if(slider.settings.mode == 'fade'){ 234 slider.children.css({ 235 position: 'absolute', 236 zIndex: 0, 237 display: 'none' 238 }); 239 // prepare the z-index on the showing element 240 slider.children.eq(slider.settings.startSlide).css({zIndex: slider.settings.slideZIndex, display: 'block'}); 241 } 242 // create an element to contain all slider controls (pager, start / stop, etc) 243 slider.controls.el = $('<div class="bx-controls" />'); 244 // if captions are requested, add them 245 if(slider.settings.captions) appendCaptions(); 246 // check if startSlide is last slide 247 slider.active.last = slider.settings.startSlide == getPagerQty() - 1; 248 // if video is true, set up the fitVids plugin 249 if(slider.settings.video) el.fitVids(); 250 // set the default preload selector (visible) 251 var preloadSelector = slider.children.eq(slider.settings.startSlide); 252 if (slider.settings.preloadImages == "all") preloadSelector = slider.children; 253 // only check for control addition if not in "ticker" mode 254 if(!slider.settings.ticker){ 255 // if pager is requested, add it 256 if(slider.settings.pager) appendPager(); 257 // if controls are requested, add them 258 if(slider.settings.controls) appendControls(); 259 // if auto is true, and auto controls are requested, add them 260 if(slider.settings.auto && slider.settings.autoControls) appendControlsAuto(); 261 // if any control option is requested, add the controls wrapper 262 if(slider.settings.controls || slider.settings.autoControls || slider.settings.pager) slider.viewport.after(slider.controls.el); 263 // if ticker mode, do not allow a pager 264 }else{ 265 slider.settings.pager = false; 266 } 267 // preload all images, then perform final DOM / CSS modifications that depend on images being loaded 268 loadElements(preloadSelector, start); 269 } 270 271 var loadElements = function(selector, callback){ 272 var total = selector.find('img, iframe').length; 273 if (total == 0){ 274 callback(); 275 return; 276 } 277 var count = 0; 278 selector.find('img, iframe').each(function(){ 279 $(this).one('load', function() { 280 if(++count == total) callback(); 281 }).each(function() { 282 if(this.complete) $(this).load(); 283 }); 284 }); 285 } 286 287 /** 288 * Start the slider 289 */ 290 var start = function(){ 291 // if infinite loop, prepare additional slides 292 if(slider.settings.infiniteLoop && slider.settings.mode != 'fade' && !slider.settings.ticker){ 293 var slice = slider.settings.mode == 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides; 294 var sliceAppend = slider.children.slice(0, slice).clone().addClass('bx-clone'); 295 var slicePrepend = slider.children.slice(-slice).clone().addClass('bx-clone'); 296 el.append(sliceAppend).prepend(slicePrepend); 297 } 298 // remove the loading DOM element 299 slider.loader.remove(); 300 // set the left / top position of "el" 301 setSlidePosition(); 302 // if "vertical" mode, always use adaptiveHeight to prevent odd behavior 303 if (slider.settings.mode == 'vertical') slider.settings.adaptiveHeight = true; 304 // set the viewport height 305 slider.viewport.height(getViewportHeight()); 306 // make sure everything is positioned just right (same as a window resize) 307 el.redrawSlider(); 308 // onSliderLoad callback 309 slider.settings.onSliderLoad(slider.active.index); 310 // slider has been fully initialized 311 slider.initialized = true; 312 // bind the resize call to the window 313 if (slider.settings.responsive) $(window).bind('resize', resizeWindow); 314 // if auto is true and has more than 1 page, start the show 315 if (slider.settings.auto && slider.settings.autoStart && (getPagerQty() > 1 || slider.settings.autoSlideForOnePage)) initAuto(); 316 // if ticker is true, start the ticker 317 if (slider.settings.ticker) initTicker(); 318 // if pager is requested, make the appropriate pager link active 319 if (slider.settings.pager) updatePagerActive(slider.settings.startSlide); 320 // check for any updates to the controls (like hideControlOnEnd updates) 321 if (slider.settings.controls) updateDirectionControls(); 322 // if touchEnabled is true, setup the touch events 323 if (slider.settings.touchEnabled && !slider.settings.ticker) initTouch(); 324 } 325 326 /** 327 * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value 328 */ 329 var getViewportHeight = function(){ 330 var height = 0; 331 // first determine which children (slides) should be used in our height calculation 332 var children = $(); 333 // if mode is not "vertical" and adaptiveHeight is false, include all children 334 if(slider.settings.mode != 'vertical' && !slider.settings.adaptiveHeight){ 335 children = slider.children; 336 }else{ 337 // if not carousel, return the single active child 338 if(!slider.carousel){ 339 children = slider.children.eq(slider.active.index); 340 // if carousel, return a slice of children 341 }else{ 342 // get the individual slide index 343 var currentIndex = slider.settings.moveSlides == 1 ? slider.active.index : slider.active.index * getMoveBy(); 344 // add the current slide to the children 345 children = slider.children.eq(currentIndex); 346 // cycle through the remaining "showing" slides 347 for (i = 1; i <= slider.settings.maxSlides - 1; i++){ 348 // if looped back to the start 349 if(currentIndex + i >= slider.children.length){ 350 children = children.add(slider.children.eq(i - 1)); 351 }else{ 352 children = children.add(slider.children.eq(currentIndex + i)); 353 } 354 } 355 } 356 } 357 // if "vertical" mode, calculate the sum of the heights of the children 358 if(slider.settings.mode == 'vertical'){ 359 children.each(function(index) { 360 height += $(this).outerHeight(); 361 }); 362 // add user-supplied margins 363 if(slider.settings.slideMargin > 0){ 364 height += slider.settings.slideMargin * (slider.settings.minSlides - 1); 365 } 366 // if not "vertical" mode, calculate the max height of the children 367 }else{ 368 height = Math.max.apply(Math, children.map(function(){ 369 return $(this).outerHeight(false); 370 }).get()); 371 } 372 373 if(slider.viewport.css('box-sizing') == 'border-box'){ 374 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')) + 375 parseFloat(slider.viewport.css('border-top-width')) + parseFloat(slider.viewport.css('border-bottom-width')); 376 }else if(slider.viewport.css('box-sizing') == 'padding-box'){ 377 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')); 378 } 379 380 return height; 381 } 382 383 /** 384 * Returns the calculated width to be used for the outer wrapper / viewport 385 */ 386 var getViewportMaxWidth = function(){ 387 var width = '100%'; 388 if(slider.settings.slideWidth > 0){ 389 if(slider.settings.mode == 'horizontal'){ 390 width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 391 }else{ 392 width = slider.settings.slideWidth; 393 } 394 } 395 return width; 396 } 397 398 /** 399 * Returns the calculated width to be applied to each slide 400 */ 401 var getSlideWidth = function(){ 402 // start with any user-supplied slide width 403 var newElWidth = slider.settings.slideWidth; 404 // get the current viewport width 405 var wrapWidth = slider.viewport.width(); 406 // if slide width was not supplied, or is larger than the viewport use the viewport width 407 if(slider.settings.slideWidth == 0 || 408 (slider.settings.slideWidth > wrapWidth && !slider.carousel) || 409 slider.settings.mode == 'vertical'){ 410 newElWidth = wrapWidth; 411 // if carousel, use the thresholds to determine the width 412 }else if(slider.settings.maxSlides > 1 && slider.settings.mode == 'horizontal'){ 413 if(wrapWidth > slider.maxThreshold){ 414 // newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.maxSlides - 1))) / slider.settings.maxSlides; 415 }else if(wrapWidth < slider.minThreshold){ 416 newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides; 417 } 418 } 419 return newElWidth; 420 } 421 422 /** 423 * Returns the number of slides currently visible in the viewport (includes partially visible slides) 424 */ 425 var getNumberSlidesShowing = function(){ 426 var slidesShowing = 1; 427 if(slider.settings.mode == 'horizontal' && slider.settings.slideWidth > 0){ 428 // if viewport is smaller than minThreshold, return minSlides 429 if(slider.viewport.width() < slider.minThreshold){ 430 slidesShowing = slider.settings.minSlides; 431 // if viewport is larger than minThreshold, return maxSlides 432 }else if(slider.viewport.width() > slider.maxThreshold){ 433 slidesShowing = slider.settings.maxSlides; 434 // if viewport is between min / max thresholds, divide viewport width by first child width 435 }else{ 436 var childWidth = slider.children.first().width() + slider.settings.slideMargin; 437 slidesShowing = Math.floor((slider.viewport.width() + 438 slider.settings.slideMargin) / childWidth); 439 } 440 // if "vertical" mode, slides showing will always be minSlides 441 }else if(slider.settings.mode == 'vertical'){ 442 slidesShowing = slider.settings.minSlides; 443 } 444 return slidesShowing; 445 } 446 447 /** 448 * Returns the number of pages (one full viewport of slides is one "page") 449 */ 450 var getPagerQty = function(){ 451 var pagerQty = 0; 452 // if moveSlides is specified by the user 453 if(slider.settings.moveSlides > 0){ 454 if(slider.settings.infiniteLoop){ 455 pagerQty = Math.ceil(slider.children.length / getMoveBy()); 456 }else{ 457 // use a while loop to determine pages 458 var breakPoint = 0; 459 var counter = 0 460 // when breakpoint goes above children length, counter is the number of pages 461 while (breakPoint < slider.children.length){ 462 ++pagerQty; 463 breakPoint = counter + getNumberSlidesShowing(); 464 counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing(); 465 } 466 } 467 // if moveSlides is 0 (auto) divide children length by sides showing, then round up 468 }else{ 469 pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing()); 470 } 471 return pagerQty; 472 } 473 474 /** 475 * Returns the number of indivual slides by which to shift the slider 476 */ 477 var getMoveBy = function(){ 478 // if moveSlides was set by the user and moveSlides is less than number of slides showing 479 if(slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()){ 480 return slider.settings.moveSlides; 481 } 482 // if moveSlides is 0 (auto) 483 return getNumberSlidesShowing(); 484 } 485 486 /** 487 * Sets the slider's (el) left or top position 488 */ 489 var setSlidePosition = function(){ 490 // if last slide, not infinite loop, and number of children is larger than specified maxSlides 491 if(slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop){ 492 if (slider.settings.mode == 'horizontal'){ 493 // get the last child's position 494 var lastChild = slider.children.last(); 495 var position = lastChild.position(); 496 // set the left position 497 setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.outerWidth())), 'reset', 0); 498 }else if(slider.settings.mode == 'vertical'){ 499 // get the last showing index's position 500 var lastShowingIndex = slider.children.length - slider.settings.minSlides; 501 var position = slider.children.eq(lastShowingIndex).position(); 502 // set the top position 503 setPositionProperty(-position.top, 'reset', 0); 504 } 505 // if not last slide 506 }else{ 507 // get the position of the first showing slide 508 var position = slider.children.eq(slider.active.index * getMoveBy()).position(); 509 // check for last slide 510 if (slider.active.index == getPagerQty() - 1) slider.active.last = true; 511 // set the repective position 512 if (position != undefined){ 513 if (slider.settings.mode == 'horizontal') setPositionProperty(-position.left, 'reset', 0); 514 else if (slider.settings.mode == 'vertical') setPositionProperty(-position.top, 'reset', 0); 515 } 516 } 517 } 518 519 /** 520 * Sets the el's animating property position (which in turn will sometimes animate el). 521 * If using CSS, sets the transform property. If not using CSS, sets the top / left property. 522 * 523 * @param value (int) 524 * - the animating property's value 525 * 526 * @param type (string) 'slider', 'reset', 'ticker' 527 * - the type of instance for which the function is being 528 * 529 * @param duration (int) 530 * - the amount of time (in ms) the transition should occupy 531 * 532 * @param params (array) optional 533 * - an optional parameter containing any variables that need to be passed in 534 */ 535 var setPositionProperty = function(value, type, duration, params){ 536 // use CSS transform 537 if(slider.usingCSS){ 538 // determine the translate3d value 539 var propValue = slider.settings.mode == 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)'; 540 // add the CSS transition-duration 541 el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's'); 542 if(type == 'slide'){ 543 // set the property value 544 el.css(slider.animProp, propValue); 545 // bind a callback method - executes when CSS transition completes 546 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(){ 547 // unbind the callback 548 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 549 updateAfterSlideTransition(); 550 }); 551 }else if(type == 'reset'){ 552 el.css(slider.animProp, propValue); 553 }else if(type == 'ticker'){ 554 // make the transition use 'linear' 555 el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear'); 556 el.css(slider.animProp, propValue); 557 // bind a callback method - executes when CSS transition completes 558 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(){ 559 // unbind the callback 560 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 561 // reset the position 562 setPositionProperty(params['resetValue'], 'reset', 0); 563 // start the loop again 564 tickerLoop(); 565 }); 566 } 567 // use JS animate 568 }else{ 569 var animateObj = {}; 570 animateObj[slider.animProp] = value; 571 if(type == 'slide'){ 572 el.animate(animateObj, duration, slider.settings.easing, function(){ 573 updateAfterSlideTransition(); 574 }); 575 }else if(type == 'reset'){ 576 el.css(slider.animProp, value) 577 }else if(type == 'ticker'){ 578 el.animate(animateObj, speed, 'linear', function(){ 579 setPositionProperty(params['resetValue'], 'reset', 0); 580 // run the recursive loop after animation 581 tickerLoop(); 582 }); 583 } 584 } 585 } 586 587 /** 588 * Populates the pager with proper amount of pages 589 */ 590 var populatePager = function(){ 591 var pagerHtml = ''; 592 var pagerQty = getPagerQty(); 593 // loop through each pager item 594 for(var i=0; i < pagerQty; i++){ 595 var linkContent = ''; 596 // if a buildPager function is supplied, use it to get pager link value, else use index + 1 597 if(slider.settings.buildPager && $.isFunction(slider.settings.buildPager)){ 598 linkContent = slider.settings.buildPager(i); 599 slider.pagerEl.addClass('bx-custom-pager'); 600 }else{ 601 linkContent = i + 1; 602 slider.pagerEl.addClass('bx-default-pager'); 603 } 604 // var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1; 605 // add the markup to the string 606 pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>'; 607 }; 608 // populate the pager element with pager links 609 slider.pagerEl.html(pagerHtml); 610 } 611 612 /** 613 * Appends the pager to the controls element 614 */ 615 var appendPager = function(){ 616 if(!slider.settings.pagerCustom){ 617 // create the pager DOM element 618 slider.pagerEl = $('<div class="bx-pager" />'); 619 // if a pager selector was supplied, populate it with the pager 620 if(slider.settings.pagerSelector){ 621 $(slider.settings.pagerSelector).html(slider.pagerEl); 622 // if no pager selector was supplied, add it after the wrapper 623 }else{ 624 slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl); 625 } 626 // populate the pager 627 populatePager(); 628 }else{ 629 slider.pagerEl = $(slider.settings.pagerCustom); 630 } 631 // assign the pager click binding 632 slider.pagerEl.on('click', 'a', clickPagerBind); 633 } 634 635 /** 636 * Appends prev / next controls to the controls element 637 */ 638 var appendControls = function(){ 639 slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>'); 640 slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>'); 641 // bind click actions to the controls 642 slider.controls.next.bind('click', clickNextBind); 643 slider.controls.prev.bind('click', clickPrevBind); 644 // if nextSlector was supplied, populate it 645 if(slider.settings.nextSelector){ 646 $(slider.settings.nextSelector).append(slider.controls.next); 647 } 648 // if prevSlector was supplied, populate it 649 if(slider.settings.prevSelector){ 650 $(slider.settings.prevSelector).append(slider.controls.prev); 651 } 652 // if no custom selectors were supplied 653 if(!slider.settings.nextSelector && !slider.settings.prevSelector){ 654 // add the controls to the DOM 655 slider.controls.directionEl = $('<div class="bx-controls-direction" />'); 656 // add the control elements to the directionEl 657 slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next); 658 // slider.viewport.append(slider.controls.directionEl); 659 slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl); 660 } 661 } 662 663 /** 664 * Appends start / stop auto controls to the controls element 665 */ 666 var appendControlsAuto = function(){ 667 slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>'); 668 slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>'); 669 // add the controls to the DOM 670 slider.controls.autoEl = $('<div class="bx-controls-auto" />'); 671 // bind click actions to the controls 672 slider.controls.autoEl.on('click', '.bx-start', clickStartBind); 673 slider.controls.autoEl.on('click', '.bx-stop', clickStopBind); 674 // if autoControlsCombine, insert only the "start" control 675 if(slider.settings.autoControlsCombine){ 676 slider.controls.autoEl.append(slider.controls.start); 677 // if autoControlsCombine is false, insert both controls 678 }else{ 679 slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop); 680 } 681 // if auto controls selector was supplied, populate it with the controls 682 if(slider.settings.autoControlsSelector){ 683 $(slider.settings.autoControlsSelector).html(slider.controls.autoEl); 684 // if auto controls selector was not supplied, add it after the wrapper 685 }else{ 686 slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl); 687 } 688 // update the auto controls 689 updateAutoControls(slider.settings.autoStart ? 'stop' : 'start'); 690 } 691 692 /** 693 * Appends image captions to the DOM 694 */ 695 var appendCaptions = function(){ 696 // cycle through each child 697 slider.children.each(function(index){ 698 // get the image title attribute 699 var title = $(this).find('img:first').attr('title'); 700 // append the caption 701 if (title != undefined && ('' + title).length) { 702 $(this).append('<div class="bx-caption"><span>' + title + '</span></div>'); 703 } 704 }); 705 } 706 707 /** 708 * Click next binding 709 * 710 * @param e (event) 711 * - DOM event object 712 */ 713 var clickNextBind = function(e){ 714 // if auto show is running, stop it 715 if (slider.settings.auto) el.stopAuto(); 716 el.goToNextSlide(); 717 e.preventDefault(); 718 } 719 720 /** 721 * Click prev binding 722 * 723 * @param e (event) 724 * - DOM event object 725 */ 726 var clickPrevBind = function(e){ 727 // if auto show is running, stop it 728 if (slider.settings.auto) el.stopAuto(); 729 el.goToPrevSlide(); 730 e.preventDefault(); 731 } 732 733 /** 734 * Click start binding 735 * 736 * @param e (event) 737 * - DOM event object 738 */ 739 var clickStartBind = function(e){ 740 el.startAuto(); 741 e.preventDefault(); 742 } 743 744 /** 745 * Click stop binding 746 * 747 * @param e (event) 748 * - DOM event object 749 */ 750 var clickStopBind = function(e){ 751 el.stopAuto(); 752 e.preventDefault(); 753 } 754 755 /** 756 * Click pager binding 757 * 758 * @param e (event) 759 * - DOM event object 760 */ 761 var clickPagerBind = function(e){ 762 // if auto show is running, stop it 763 if (slider.settings.auto) el.stopAuto(); 764 var pagerLink = $(e.currentTarget); 765 if(pagerLink.attr('data-slide-index') !== undefined){ 766 var pagerIndex = parseInt(pagerLink.attr('data-slide-index')); 767 // if clicked pager link is not active, continue with the goToSlide call 768 if(pagerIndex != slider.active.index) el.goToSlide(pagerIndex); 769 e.preventDefault(); 770 } 771 } 772 773 /** 774 * Updates the pager links with an active class 775 * 776 * @param slideIndex (int) 777 * - index of slide to make active 778 */ 779 var updatePagerActive = function(slideIndex){ 780 // if "short" pager type 781 var len = slider.children.length; // nb of children 782 if(slider.settings.pagerType == 'short'){ 783 if(slider.settings.maxSlides > 1) { 784 len = Math.ceil(slider.children.length/slider.settings.maxSlides); 785 } 786 slider.pagerEl.html( (slideIndex + 1) + slider.settings.pagerShortSeparator + len); 787 return; 788 } 789 // remove all pager active classes 790 slider.pagerEl.find('a').removeClass('active'); 791 // apply the active class for all pagers 792 slider.pagerEl.each(function(i, el) { $(el).find('a').eq(slideIndex).addClass('active'); }); 793 } 794 795 /** 796 * Performs needed actions after a slide transition 797 */ 798 var updateAfterSlideTransition = function(){ 799 // if infinte loop is true 800 if(slider.settings.infiniteLoop){ 801 var position = ''; 802 // first slide 803 if(slider.active.index == 0){ 804 // set the new position 805 position = slider.children.eq(0).position(); 806 // carousel, last slide 807 }else if(slider.active.index == getPagerQty() - 1 && slider.carousel){ 808 position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position(); 809 // last slide 810 }else if(slider.active.index == slider.children.length - 1){ 811 position = slider.children.eq(slider.children.length - 1).position(); 812 } 813 if(position){ 814 if (slider.settings.mode == 'horizontal') { setPositionProperty(-position.left, 'reset', 0); } 815 else if (slider.settings.mode == 'vertical') { setPositionProperty(-position.top, 'reset', 0); } 816 } 817 } 818 // declare that the transition is complete 819 slider.working = false; 820 // onSlideAfter callback 821 slider.settings.onSlideAfter(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 822 } 823 824 /** 825 * Updates the auto controls state (either active, or combined switch) 826 * 827 * @param state (string) "start", "stop" 828 * - the new state of the auto show 829 */ 830 var updateAutoControls = function(state){ 831 // if autoControlsCombine is true, replace the current control with the new state 832 if(slider.settings.autoControlsCombine){ 833 slider.controls.autoEl.html(slider.controls[state]); 834 // if autoControlsCombine is false, apply the "active" class to the appropriate control 835 }else{ 836 slider.controls.autoEl.find('a').removeClass('active'); 837 slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active'); 838 } 839 } 840 841 /** 842 * Updates the direction controls (checks if either should be hidden) 843 */ 844 var updateDirectionControls = function(){ 845 if(getPagerQty() == 1){ 846 slider.controls.prev.addClass('disabled'); 847 slider.controls.next.addClass('disabled'); 848 }else if(!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd){ 849 // if first slide 850 if (slider.active.index == 0){ 851 slider.controls.prev.addClass('disabled'); 852 slider.controls.next.removeClass('disabled'); 853 // if last slide 854 }else if(slider.active.index == getPagerQty() - 1){ 855 slider.controls.next.addClass('disabled'); 856 slider.controls.prev.removeClass('disabled'); 857 // if any slide in the middle 858 }else{ 859 slider.controls.prev.removeClass('disabled'); 860 slider.controls.next.removeClass('disabled'); 861 } 862 } 863 } 864 865 /** 866 * Initialzes the auto process 867 */ 868 var initAuto = function(){ 869 // if autoDelay was supplied, launch the auto show using a setTimeout() call 870 if(slider.settings.autoDelay > 0){ 871 var timeout = setTimeout(el.startAuto, slider.settings.autoDelay); 872 // if autoDelay was not supplied, start the auto show normally 873 }else{ 874 el.startAuto(); 875 } 876 // if autoHover is requested 877 if(slider.settings.autoHover){ 878 // on el hover 879 el.hover(function(){ 880 // if the auto show is currently playing (has an active interval) 881 if(slider.interval){ 882 // stop the auto show and pass true agument which will prevent control update 883 el.stopAuto(true); 884 // create a new autoPaused value which will be used by the relative "mouseout" event 885 slider.autoPaused = true; 886 } 887 }, function(){ 888 // if the autoPaused value was created be the prior "mouseover" event 889 if(slider.autoPaused){ 890 // start the auto show and pass true agument which will prevent control update 891 el.startAuto(true); 892 // reset the autoPaused value 893 slider.autoPaused = null; 894 } 895 }); 896 } 897 } 898 899 /** 900 * Initialzes the ticker process 901 */ 902 var initTicker = function(){ 903 var startPosition = 0; 904 // if autoDirection is "next", append a clone of the entire slider 905 if(slider.settings.autoDirection == 'next'){ 906 el.append(slider.children.clone().addClass('bx-clone')); 907 // if autoDirection is "prev", prepend a clone of the entire slider, and set the left position 908 }else{ 909 el.prepend(slider.children.clone().addClass('bx-clone')); 910 var position = slider.children.first().position(); 911 startPosition = slider.settings.mode == 'horizontal' ? -position.left : -position.top; 912 } 913 setPositionProperty(startPosition, 'reset', 0); 914 // do not allow controls in ticker mode 915 slider.settings.pager = false; 916 slider.settings.controls = false; 917 slider.settings.autoControls = false; 918 // if autoHover is requested 919 if(slider.settings.tickerHover && !slider.usingCSS){ 920 // on el hover 921 slider.viewport.hover(function(){ 922 el.stop(); 923 }, function(){ 924 // calculate the total width of children (used to calculate the speed ratio) 925 var totalDimens = 0; 926 slider.children.each(function(index){ 927 totalDimens += slider.settings.mode == 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 928 }); 929 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 930 var ratio = slider.settings.speed / totalDimens; 931 // determine which property to use 932 var property = slider.settings.mode == 'horizontal' ? 'left' : 'top'; 933 // calculate the new speed 934 var newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property))))); 935 tickerLoop(newSpeed); 936 }); 937 } 938 // start the ticker loop 939 tickerLoop(); 940 } 941 942 /** 943 * Runs a continuous loop, news ticker-style 944 */ 945 var tickerLoop = function(resumeSpeed){ 946 speed = resumeSpeed ? resumeSpeed : slider.settings.speed; 947 var position = {left: 0, top: 0}; 948 var reset = {left: 0, top: 0}; 949 // if "next" animate left position to last child, then reset left to 0 950 if(slider.settings.autoDirection == 'next'){ 951 position = el.find('.bx-clone').first().position(); 952 // if "prev" animate left position to 0, then reset left to first non-clone child 953 }else{ 954 reset = slider.children.first().position(); 955 } 956 var animateProperty = slider.settings.mode == 'horizontal' ? -position.left : -position.top; 957 var resetValue = slider.settings.mode == 'horizontal' ? -reset.left : -reset.top; 958 var params = {resetValue: resetValue}; 959 setPositionProperty(animateProperty, 'ticker', speed, params); 960 } 961 962 /** 963 * Initializes touch events 964 */ 965 var initTouch = function(){ 966 // initialize object to contain all touch values 967 slider.touch = { 968 start: {x: 0, y: 0}, 969 end: {x: 0, y: 0} 970 } 971 slider.viewport.bind('touchstart', onTouchStart); 972 } 973 974 /** 975 * Event handler for "touchstart" 976 * 977 * @param e (event) 978 * - DOM event object 979 */ 980 var onTouchStart = function(e){ 981 if(slider.working){ 982 e.preventDefault(); 983 }else{ 984 // record the original position when touch starts 985 slider.touch.originalPos = el.position(); 986 var orig = e.originalEvent; 987 // record the starting touch x, y coordinates 988 slider.touch.start.x = orig.changedTouches[0].pageX; 989 slider.touch.start.y = orig.changedTouches[0].pageY; 990 // bind a "touchmove" event to the viewport 991 slider.viewport.bind('touchmove', onTouchMove); 992 // bind a "touchend" event to the viewport 993 slider.viewport.bind('touchend', onTouchEnd); 994 } 995 } 996 997 /** 998 * Event handler for "touchmove" 999 * 1000 * @param e (event) 1001 * - DOM event object 1002 */ 1003 var onTouchMove = function(e){ 1004 var orig = e.originalEvent; 1005 // if scrolling on y axis, do not prevent default 1006 var xMovement = Math.abs(orig.changedTouches[0].pageX - slider.touch.start.x); 1007 var yMovement = Math.abs(orig.changedTouches[0].pageY - slider.touch.start.y); 1008 // x axis swipe 1009 if((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX){ 1010 e.preventDefault(); 1011 // y axis swipe 1012 }else if((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY){ 1013 e.preventDefault(); 1014 } 1015 if(slider.settings.mode != 'fade' && slider.settings.oneToOneTouch){ 1016 var value = 0; 1017 // if horizontal, drag along x axis 1018 if(slider.settings.mode == 'horizontal'){ 1019 var change = orig.changedTouches[0].pageX - slider.touch.start.x; 1020 value = slider.touch.originalPos.left + change; 1021 // if vertical, drag along y axis 1022 }else{ 1023 var change = orig.changedTouches[0].pageY - slider.touch.start.y; 1024 value = slider.touch.originalPos.top + change; 1025 } 1026 setPositionProperty(value, 'reset', 0); 1027 } 1028 } 1029 1030 /** 1031 * Event handler for "touchend" 1032 * 1033 * @param e (event) 1034 * - DOM event object 1035 */ 1036 var onTouchEnd = function(e){ 1037 slider.viewport.unbind('touchmove', onTouchMove); 1038 var orig = e.originalEvent; 1039 var value = 0; 1040 // record end x, y positions 1041 slider.touch.end.x = orig.changedTouches[0].pageX; 1042 slider.touch.end.y = orig.changedTouches[0].pageY; 1043 // if fade mode, check if absolute x distance clears the threshold 1044 if(slider.settings.mode == 'fade'){ 1045 var distance = Math.abs(slider.touch.start.x - slider.touch.end.x); 1046 if(distance >= slider.settings.swipeThreshold){ 1047 slider.touch.start.x > slider.touch.end.x ? el.goToNextSlide() : el.goToPrevSlide(); 1048 el.stopAuto(); 1049 } 1050 // not fade mode 1051 }else{ 1052 var distance = 0; 1053 // calculate distance and el's animate property 1054 if(slider.settings.mode == 'horizontal'){ 1055 distance = slider.touch.end.x - slider.touch.start.x; 1056 value = slider.touch.originalPos.left; 1057 }else{ 1058 distance = slider.touch.end.y - slider.touch.start.y; 1059 value = slider.touch.originalPos.top; 1060 } 1061 // if not infinite loop and first / last slide, do not attempt a slide transition 1062 if(!slider.settings.infiniteLoop && ((slider.active.index == 0 && distance > 0) || (slider.active.last && distance < 0))){ 1063 setPositionProperty(value, 'reset', 200); 1064 }else{ 1065 // check if distance clears threshold 1066 if(Math.abs(distance) >= slider.settings.swipeThreshold){ 1067 distance < 0 ? el.goToNextSlide() : el.goToPrevSlide(); 1068 el.stopAuto(); 1069 }else{ 1070 // el.animate(property, 200); 1071 setPositionProperty(value, 'reset', 200); 1072 } 1073 } 1074 } 1075 slider.viewport.unbind('touchend', onTouchEnd); 1076 } 1077 1078 /** 1079 * Window resize event callback 1080 */ 1081 var resizeWindow = function(e){ 1082 // don't do anything if slider isn't initialized. 1083 if(!slider.initialized) return; 1084 // get the new window dimens (again, thank you IE) 1085 var windowWidthNew = $(window).width(); 1086 var windowHeightNew = $(window).height(); 1087 // make sure that it is a true window resize 1088 // *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements 1089 // are resized. Can you just die already?* 1090 if(windowWidth != windowWidthNew || windowHeight != windowHeightNew){ 1091 // set the new window dimens 1092 windowWidth = windowWidthNew; 1093 windowHeight = windowHeightNew; 1094 // update all dynamic elements 1095 el.redrawSlider(); 1096 // Call user resize handler 1097 slider.settings.onSliderResize.call(el, slider.active.index); 1098 } 1099 } 1100 1101 /** 1102 * =================================================================================== 1103 * = PUBLIC FUNCTIONS 1104 * =================================================================================== 1105 */ 1106 1107 /** 1108 * Performs slide transition to the specified slide 1109 * 1110 * @param slideIndex (int) 1111 * - the destination slide's index (zero-based) 1112 * 1113 * @param direction (string) 1114 * - INTERNAL USE ONLY - the direction of travel ("prev" / "next") 1115 */ 1116 el.goToSlide = function(slideIndex, direction){ 1117 // if plugin is currently in motion, ignore request 1118 if(slider.working || slider.active.index == slideIndex) return; 1119 // declare that plugin is in motion 1120 slider.working = true; 1121 // store the old index 1122 slider.oldIndex = slider.active.index; 1123 // if slideIndex is less than zero, set active index to last child (this happens during infinite loop) 1124 if(slideIndex < 0){ 1125 slider.active.index = getPagerQty() - 1; 1126 // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop) 1127 }else if(slideIndex >= getPagerQty()){ 1128 slider.active.index = 0; 1129 // set active index to requested slide 1130 }else{ 1131 slider.active.index = slideIndex; 1132 } 1133 // onSlideBefore, onSlideNext, onSlidePrev callbacks 1134 slider.settings.onSlideBefore(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1135 if(direction == 'next'){ 1136 slider.settings.onSlideNext(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1137 }else if(direction == 'prev'){ 1138 slider.settings.onSlidePrev(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1139 } 1140 // check if last slide 1141 slider.active.last = slider.active.index >= getPagerQty() - 1; 1142 // update the pager with active class 1143 if(slider.settings.pager) updatePagerActive(slider.active.index); 1144 // // check for direction control update 1145 if(slider.settings.controls) updateDirectionControls(); 1146 // if slider is set to mode: "fade" 1147 if(slider.settings.mode == 'fade'){ 1148 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1149 if(slider.settings.adaptiveHeight && slider.viewport.height() != getViewportHeight()){ 1150 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1151 } 1152 // fade out the visible child and reset its z-index value 1153 slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0}); 1154 // fade in the newly requested slide 1155 slider.children.eq(slider.active.index).css('zIndex', slider.settings.slideZIndex+1).fadeIn(slider.settings.speed, function(){ 1156 $(this).css('zIndex', slider.settings.slideZIndex); 1157 updateAfterSlideTransition(); 1158 }); 1159 // slider mode is not "fade" 1160 }else{ 1161 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1162 if(slider.settings.adaptiveHeight && slider.viewport.height() != getViewportHeight()){ 1163 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1164 } 1165 var moveBy = 0; 1166 var position = {left: 0, top: 0}; 1167 // if carousel and not infinite loop 1168 if(!slider.settings.infiniteLoop && slider.carousel && slider.active.last){ 1169 if(slider.settings.mode == 'horizontal'){ 1170 // get the last child position 1171 var lastChild = slider.children.eq(slider.children.length - 1); 1172 position = lastChild.position(); 1173 // calculate the position of the last slide 1174 moveBy = slider.viewport.width() - lastChild.outerWidth(); 1175 }else{ 1176 // get last showing index position 1177 var lastShowingIndex = slider.children.length - slider.settings.minSlides; 1178 position = slider.children.eq(lastShowingIndex).position(); 1179 } 1180 // horizontal carousel, going previous while on first slide (infiniteLoop mode) 1181 }else if(slider.carousel && slider.active.last && direction == 'prev'){ 1182 // get the last child position 1183 var eq = slider.settings.moveSlides == 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides); 1184 var lastChild = el.children('.bx-clone').eq(eq); 1185 position = lastChild.position(); 1186 // if infinite loop and "Next" is clicked on the last slide 1187 }else if(direction == 'next' && slider.active.index == 0){ 1188 // get the last clone position 1189 position = el.find('> .bx-clone').eq(slider.settings.maxSlides).position(); 1190 slider.active.last = false; 1191 // normal non-zero requests 1192 }else if(slideIndex >= 0){ 1193 var requestEl = slideIndex * getMoveBy(); 1194 position = slider.children.eq(requestEl).position(); 1195 } 1196 1197 /* If the position doesn't exist 1198 * (e.g. if you destroy the slider on a next click), 1199 * it doesn't throw an error. 1200 */ 1201 if ("undefined" !== typeof(position)) { 1202 var value = slider.settings.mode == 'horizontal' ? -(position.left - moveBy) : -position.top; 1203 // plugin values to be animated 1204 setPositionProperty(value, 'slide', slider.settings.speed); 1205 } 1206 } 1207 } 1208 1209 /** 1210 * Transitions to the next slide in the show 1211 */ 1212 el.goToNextSlide = function(){ 1213 // if infiniteLoop is false and last page is showing, disregard call 1214 if (!slider.settings.infiniteLoop && slider.active.last) return; 1215 var pagerIndex = parseInt(slider.active.index) + 1; 1216 el.goToSlide(pagerIndex, 'next'); 1217 } 1218 1219 /** 1220 * Transitions to the prev slide in the show 1221 */ 1222 el.goToPrevSlide = function(){ 1223 // if infiniteLoop is false and last page is showing, disregard call 1224 if (!slider.settings.infiniteLoop && slider.active.index == 0) return; 1225 var pagerIndex = parseInt(slider.active.index) - 1; 1226 el.goToSlide(pagerIndex, 'prev'); 1227 } 1228 1229 /** 1230 * Starts the auto show 1231 * 1232 * @param preventControlUpdate (boolean) 1233 * - if true, auto controls state will not be updated 1234 */ 1235 el.startAuto = function(preventControlUpdate){ 1236 // if an interval already exists, disregard call 1237 if(slider.interval) return; 1238 // create an interval 1239 slider.interval = setInterval(function(){ 1240 slider.settings.autoDirection == 'next' ? el.goToNextSlide() : el.goToPrevSlide(); 1241 }, slider.settings.pause); 1242 // if auto controls are displayed and preventControlUpdate is not true 1243 if (slider.settings.autoControls && preventControlUpdate != true) updateAutoControls('stop'); 1244 } 1245 1246 /** 1247 * Stops the auto show 1248 * 1249 * @param preventControlUpdate (boolean) 1250 * - if true, auto controls state will not be updated 1251 */ 1252 el.stopAuto = function(preventControlUpdate){ 1253 // if no interval exists, disregard call 1254 if(!slider.interval) return; 1255 // clear the interval 1256 clearInterval(slider.interval); 1257 slider.interval = null; 1258 // if auto controls are displayed and preventControlUpdate is not true 1259 if (slider.settings.autoControls && preventControlUpdate != true) updateAutoControls('start'); 1260 } 1261 1262 /** 1263 * Returns current slide index (zero-based) 1264 */ 1265 el.getCurrentSlide = function(){ 1266 return slider.active.index; 1267 } 1268 1269 /** 1270 * Returns current slide element 1271 */ 1272 el.getCurrentSlideElement = function(){ 1273 return slider.children.eq(slider.active.index); 1274 } 1275 1276 /** 1277 * Returns number of slides in show 1278 */ 1279 el.getSlideCount = function(){ 1280 return slider.children.length; 1281 } 1282 1283 /** 1284 * Update all dynamic slider elements 1285 */ 1286 el.redrawSlider = function(){ 1287 // resize all children in ratio to new screen size 1288 slider.children.add(el.find('.bx-clone')).width(getSlideWidth()); 1289 // adjust the height 1290 slider.viewport.css('height', getViewportHeight()); 1291 // update the slide position 1292 if(!slider.settings.ticker) setSlidePosition(); 1293 // if active.last was true before the screen resize, we want 1294 // to keep it last no matter what screen size we end on 1295 if (slider.active.last) slider.active.index = getPagerQty() - 1; 1296 // if the active index (page) no longer exists due to the resize, simply set the index as last 1297 if (slider.active.index >= getPagerQty()) slider.active.last = true; 1298 // if a pager is being displayed and a custom pager is not being used, update it 1299 if(slider.settings.pager && !slider.settings.pagerCustom){ 1300 populatePager(); 1301 updatePagerActive(slider.active.index); 1302 } 1303 } 1304 1305 /** 1306 * Destroy the current instance of the slider (revert everything back to original state) 1307 */ 1308 el.destroySlider = function(){ 1309 // don't do anything if slider has already been destroyed 1310 if(!slider.initialized) return; 1311 slider.initialized = false; 1312 $('.bx-clone', this).remove(); 1313 slider.children.each(function() { 1314 $(this).data("origStyle") != undefined ? $(this).attr("style", $(this).data("origStyle")) : $(this).removeAttr('style'); 1315 }); 1316 $(this).data("origStyle") != undefined ? this.attr("style", $(this).data("origStyle")) : $(this).removeAttr('style'); 1317 $(this).unwrap().unwrap(); 1318 if(slider.controls.el) slider.controls.el.remove(); 1319 if(slider.controls.next) slider.controls.next.remove(); 1320 if(slider.controls.prev) slider.controls.prev.remove(); 1321 if(slider.pagerEl && slider.settings.controls) slider.pagerEl.remove(); 1322 $('.bx-caption', this).remove(); 1323 if(slider.controls.autoEl) slider.controls.autoEl.remove(); 1324 clearInterval(slider.interval); 1325 if(slider.settings.responsive) $(window).unbind('resize', resizeWindow); 1326 } 1327 1328 /** 1329 * Reload the slider (revert all DOM changes, and re-initialize) 1330 */ 1331 el.reloadSlider = function(settings){ 1332 if (settings != undefined) options = settings; 1333 el.destroySlider(); 1334 init(); 1335 } 1336 1337 init(); 1338 1339 // returns the current jQuery object 1340 return this; 1341 } 1342 1343 })(jQuery);