查看文件: bxslider.min.js
大小: 18.91 KB
类型: application/javascript
/** * BxSlider v4.1.2 - Fully loaded, responsive content slider * http://bxslider.com * * Copyright 2014, Steven Wanderski - http://stevenwanderski.com - http://bxcreative.com * Written while drinking Belgian ales and listening to jazz * * Released under the MIT license - http://opensource.org/licenses/MIT */ !function(t){var e={},s={mode:"horizontal",slideSelector:"",infiniteLoop:!0,hideControlOnEnd:!1,speed:500,easing:null,slideMargin:0,startSlide:0,randomStart:!1,captions:!1,ticker:!1,tickerHover:!1,adaptiveHeight:!1,adaptiveHeightSpeed:500,video:!1,useCSS:!0,preloadImages:"visible",responsive:!0,slideZIndex:50,touchEnabled:!0,swipeThreshold:50,oneToOneTouch:!0,preventDefaultSwipeX:!0,preventDefaultSwipeY:!1,pager:!0,pagerType:"full",pagerShortSeparator:" / ",pagerSelector:null,buildPager:null,pagerCustom:null,controls:!0,nextText:"Next",prevText:"Prev",nextSelector:null,prevSelector:null,autoControls:!1,startText:"Start",stopText:"Stop",autoControlsCombine:!1,autoControlsSelector:null,auto:!1,pause:4e3,autoStart:!0,autoDirection:"next",autoHover:!1,autoDelay:0,minSlides:1,maxSlides:1,moveSlides:0,slideWidth:0,onSliderLoad:function(){},onSlideBefore:function(){},onSlideAfter:function(){},onSlideNext:function(){},onSlidePrev:function(){},onSliderResize:function(){}};t.fn.bxSlider=function(n){if(0==this.length)return this;if(this.length>1)return this.each(function(){t(this).bxSlider(n)}),this;var o={},r=this;e.el=this;var 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e="vertical"==o.settings.mode?o.settings.minSlides:o.settings.maxSlides,i=o.children.slice(0,e).clone().addClass("bx-clone"),s=o.children.slice(-e).clone().addClass("bx-clone");r.append(i).prepend(s)}o.loader.remove(),S(),"vertical"==o.settings.mode&&(o.settings.adaptiveHeight=!0),o.viewport.height(v()),r.redrawSlider(),o.settings.onSliderLoad(o.active.index),o.initialized=!0,o.settings.responsive&&t(window).bind("resize",Z),o.settings.auto&&o.settings.autoStart&&H(),o.settings.ticker&&L(),o.settings.pager&&q(o.settings.startSlide),o.settings.controls&&W(),o.settings.touchEnabled&&!o.settings.ticker&&O()},v=function(){var e=0,s=t();if("vertical"==o.settings.mode||o.settings.adaptiveHeight)if(o.carousel){var n=1==o.settings.moveSlides?o.active.index:o.active.index*m();for(s=o.children.eq(n),i=1;i<=o.settings.maxSlides-1;i++)s=n+i>=o.children.length?s.add(o.children.eq(i-1)):s.add(o.children.eq(n+i))}else s=o.children.eq(o.active.index);else 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i=t(e.currentTarget),s=parseInt(i.attr("data-slide-index"));s!=o.active.index&&r.goToSlide(s),e.preventDefault()},q=function(e){var i=o.children.length;return"short"==o.settings.pagerType?(o.settings.maxSlides>1&&(i=Math.ceil(o.children.length/o.settings.maxSlides)),o.pagerEl.html(e+1+o.settings.pagerShortSeparator+i),void 0):(o.pagerEl.find("a").removeClass("active"),o.pagerEl.each(function(i,s){t(s).find("a").eq(e).addClass("active")}),void 0)},D=function(){if(o.settings.infiniteLoop){var t="";0==o.active.index?t=o.children.eq(0).position():o.active.index==x()-1&&o.carousel?t=o.children.eq((x()-1)*m()).position():o.active.index==o.children.length-1&&(t=o.children.eq(o.children.length-1).position()),t&&("horizontal"==o.settings.mode?b(-t.left,"reset",0):"vertical"==o.settings.mode&&b(-t.top,"reset",0))}o.working=!1,o.settings.onSlideAfter(o.children.eq(o.active.index),o.oldIndex,o.active.index)},A=function(t){o.settings.autoControlsCombine?o.controls.autoEl.html(o.controls[t]):(o.controls.autoEl.find("a").removeClass("active"),o.controls.autoEl.find("a:not(.bx-"+t+")").addClass("active"))},W=function(){1==x()?(o.controls.prev.addClass("disabled"),o.controls.next.addClass("disabled")):!o.settings.infiniteLoop&&o.settings.hideControlOnEnd&&(0==o.active.index?(o.controls.prev.addClass("disabled"),o.controls.next.removeClass("disabled")):o.active.index==x()-1?(o.controls.next.addClass("disabled"),o.controls.prev.removeClass("disabled")):(o.controls.prev.removeClass("disabled"),o.controls.next.removeClass("disabled")))},H=function(){o.settings.autoDelay>0?setTimeout(r.startAuto,o.settings.autoDelay):r.startAuto(),o.settings.autoHover&&r.hover(function(){o.interval&&(r.stopAuto(!0),o.autoPaused=!0)},function(){o.autoPaused&&(r.startAuto(!0),o.autoPaused=null)})},L=function(){var e=0;if("next"==o.settings.autoDirection)r.append(o.children.clone().addClass("bx-clone"));else{r.prepend(o.children.clone().addClass("bx-clone"));var i=o.children.first().position();e="horizontal"==o.settings.mode?-i.left:-i.top}b(e,"reset",0),o.settings.pager=!1,o.settings.controls=!1,o.settings.autoControls=!1,o.settings.tickerHover&&!o.usingCSS&&o.viewport.hover(function(){r.stop()},function(){var e=0;o.children.each(function(){e+="horizontal"==o.settings.mode?t(this).outerWidth(!0):t(this).outerHeight(!0)});var i=o.settings.speed/e,s="horizontal"==o.settings.mode?"left":"top",n=i*(e-Math.abs(parseInt(r.css(s))));N(n)}),N()},N=function(t){speed=t?t:o.settings.speed;var e={left:0,top:0},i={left:0,top:0};"next"==o.settings.autoDirection?e=r.find(".bx-clone").first().position():i=o.children.first().position();var s="horizontal"==o.settings.mode?-e.left:-e.top,n="horizontal"==o.settings.mode?-i.left:-i.top,a={resetValue:n};b(s,"ticker",speed,a)},O=function(){o.touch={start:{x:0,y:0},end:{x:0,y:0}},o.viewport.bind("touchstart",X)},X=function(t){if(o.working)t.preventDefault();else{o.touch.originalPos=r.position();var e=t.originalEvent;o.touch.start.x=e.changedTouches[0].pageX,o.touch.start.y=e.changedTouches[0].pageY,o.viewport.bind("touchmove",Y),o.viewport.bind("touchend",V)}},Y=function(t){var e=t.originalEvent,i=Math.abs(e.changedTouches[0].pageX-o.touch.start.x),s=Math.abs(e.changedTouches[0].pageY-o.touch.start.y);if(3*i>s&&o.settings.preventDefaultSwipeX?t.preventDefault():3*s>i&&o.settings.preventDefaultSwipeY&&t.preventDefault(),"fade"!=o.settings.mode&&o.settings.oneToOneTouch){var n=0;if("horizontal"==o.settings.mode){var r=e.changedTouches[0].pageX-o.touch.start.x;n=o.touch.originalPos.left+r}else{var r=e.changedTouches[0].pageY-o.touch.start.y;n=o.touch.originalPos.top+r}b(n,"reset",0)}},V=function(t){o.viewport.unbind("touchmove",Y);var e=t.originalEvent,i=0;if(o.touch.end.x=e.changedTouches[0].pageX,o.touch.end.y=e.changedTouches[0].pageY,"fade"==o.settings.mode){var s=Math.abs(o.touch.start.x-o.touch.end.x);s>=o.settings.swipeThreshold&&(o.touch.start.x>o.touch.end.x?r.goToNextSlide():r.goToPrevSlide(),r.stopAuto())}else{var s=0;"horizontal"==o.settings.mode?(s=o.touch.end.x-o.touch.start.x,i=o.touch.originalPos.left):(s=o.touch.end.y-o.touch.start.y,i=o.touch.originalPos.top),!o.settings.infiniteLoop&&(0==o.active.index&&s>0||o.active.last&&0>s)?b(i,"reset",200):Math.abs(s)>=o.settings.swipeThreshold?(0>s?r.goToNextSlide():r.goToPrevSlide(),r.stopAuto()):b(i,"reset",200)}o.viewport.unbind("touchend",V)},Z=function(){var e=t(window).width(),i=t(window).height();(a!=e||l!=i)&&(a=e,l=i,r.redrawSlider(),o.settings.onSliderResize.call(r,o.active.index))};return r.goToSlide=function(e,i){if(!o.working&&o.active.index!=e)if(o.working=!0,o.oldIndex=o.active.index,o.active.index=0>e?x()-1:e>=x()?0:e,o.settings.onSlideBefore(o.children.eq(o.active.index),o.oldIndex,o.active.index),"next"==i?o.settings.onSlideNext(o.children.eq(o.active.index),o.oldIndex,o.active.index):"prev"==i&&o.settings.onSlidePrev(o.children.eq(o.active.index),o.oldIndex,o.active.index),o.active.last=o.active.index>=x()-1,o.settings.pager&&q(o.active.index),o.settings.controls&&W(),"fade"==o.settings.mode)o.settings.adaptiveHeight&&o.viewport.height()!=v()&&o.viewport.animate({height:v()},o.settings.adaptiveHeightSpeed),o.children.filter(":visible").fadeOut(o.settings.speed).css({zIndex:0}),o.children.eq(o.active.index).css("zIndex",o.settings.slideZIndex+1).fadeIn(o.settings.speed,function(){t(this).css("zIndex",o.settings.slideZIndex),D()});else{o.settings.adaptiveHeight&&o.viewport.height()!=v()&&o.viewport.animate({height:v()},o.settings.adaptiveHeightSpeed);var s=0,n={left:0,top:0};if(!o.settings.infiniteLoop&&o.carousel&&o.active.last)if("horizontal"==o.settings.mode){var a=o.children.eq(o.children.length-1);n=a.position(),s=o.viewport.width()-a.outerWidth()}else{var l=o.children.length-o.settings.minSlides;n=o.children.eq(l).position()}else if(o.carousel&&o.active.last&&"prev"==i){var d=1==o.settings.moveSlides?o.settings.maxSlides-m():(x()-1)*m()-(o.children.length-o.settings.maxSlides),a=r.children(".bx-clone").eq(d);n=a.position()}else if("next"==i&&0==o.active.index)n=r.find("> .bx-clone").eq(o.settings.maxSlides).position(),o.active.last=!1;else if(e>=0){var c=e*m();n=o.children.eq(c).position()}if("undefined"!=typeof n){var g="horizontal"==o.settings.mode?-(n.left-s):-n.top;b(g,"slide",o.settings.speed)}}},r.goToNextSlide=function(){if(o.settings.infiniteLoop||!o.active.last){var t=parseInt(o.active.index)+1;r.goToSlide(t,"next")}},r.goToPrevSlide=function(){if(o.settings.infiniteLoop||0!=o.active.index){var t=parseInt(o.active.index)-1;r.goToSlide(t,"prev")}},r.startAuto=function(t){o.interval||(o.interval=setInterval(function(){"next"==o.settings.autoDirection?r.goToNextSlide():r.goToPrevSlide()},o.settings.pause),o.settings.autoControls&&1!=t&&A("stop"))},r.stopAuto=function(t){o.interval&&(clearInterval(o.interval),o.interval=null,o.settings.autoControls&&1!=t&&A("start"))},r.getCurrentSlide=function(){return o.active.index},r.getCurrentSlideElement=function(){return o.children.eq(o.active.index)},r.getSlideCount=function(){return o.children.length},r.redrawSlider=function(){o.children.add(r.find(".bx-clone")).outerWidth(u()),o.viewport.css("height",v()),o.settings.ticker||S(),o.active.last&&(o.active.index=x()-1),o.active.index>=x()&&(o.active.last=!0),o.settings.pager&&!o.settings.pagerCustom&&(w(),q(o.active.index))},r.destroySlider=function(){o.initialized&&(o.initialized=!1,t(".bx-clone",this).remove(),o.children.each(function(){void 0!=t(this).data("origStyle")?t(this).attr("style",t(this).data("origStyle")):t(this).removeAttr("style")}),void 0!=t(this).data("origStyle")?this.attr("style",t(this).data("origStyle")):t(this).removeAttr("style"),t(this).unwrap().unwrap(),o.controls.el&&o.controls.el.remove(),o.controls.next&&o.controls.next.remove(),o.controls.prev&&o.controls.prev.remove(),o.pagerEl&&o.settings.controls&&o.pagerEl.remove(),t(".bx-caption",this).remove(),o.controls.autoEl&&o.controls.autoEl.remove(),clearInterval(o.interval),o.settings.responsive&&t(window).unbind("resize",Z))},r.reloadSlider=function(t){void 0!=t&&(n=t),r.destroySlider(),d()},d(),this}}(jQuery);
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