https://www.paulremd.com/js/jquery.flexisel.js

1!function(e){e.fn.flexisel=function(t){var n,i,l,a,o=e.extend({visibleItems:4,itemsToScroll:3,animationSpeed:400,infinite:!0,navigationTargetSelector:null,autoPlay:{enable:!1,interval:5e3,pauseOnHover:!0},responsiveBreakpoints:{portrait:{changePoint:480,visibleItems:1,itemsToScroll:1},landscape:{changePoint:640,visibleItems:2,itemsToScroll:2},tablet:{changePoint:768,visibleItems:3,itemsToScroll:3}},loaded:function(){},before:function(){},after:function(){},resize:function(){}},t),s=e(this),r=e.extend(o,t),c=!0,f=r.visibleItems,d=r.itemsToScroll,u=[],v={init:function(){return this.each(function(){v.appendHTML(),v.setEventHandlers(),v.initializeItems()})},initializeItems:function(){var t=r.responsiveBreakpoints;for(var l in t)u.push(t[l]);u.sort(function(e,t){return e.changePoint-t.changePoint});var a=s.children();a.first().addClass("index"),n=v.getCurrentItemWidth(),i=a.length,a.width(n),r.infinite&&(v.offsetItemsToBeginning(Math.floor(a.length/2)),s.css({left:-n*Math.floor(a.length/2)})),e(window).trigger("resize"),s.fadeIn(),r.loaded.call(this,s)},appendHTML:function(){if(s.addClass("nbs-flexisel-ul"),s.wrap("<div class='nbs-flexisel-container'><div class='nbs-flexisel-inner'></div></div>"),s.find("li").addClass("nbs-flexisel-item"),r.navigationTargetSelector&&e(r.navigationTargetSelector).length>0?e("<div class='nbs-flexisel-nav-left'></div><div class='nbs-flexisel-nav-right'></div>").appendTo(r.navigationTargetSelector):(r.navigationTargetSelector=s.parent(),e("<div class='nbs-flexisel-nav-left'></div><div class='nbs-flexisel-nav-right'></div>").insertAfter(s)),r.infinite){var t=s.children(),n=t.clone(),i=t.clone();s.prepend(n),s.append(i)}},setEventHandlers:function(){var t=this,i=s.children();e(window).on("resize",function(a){c=!1,clearTimeout(l),l=setTimeout(function(){c=!0,v.calculateDisplay(),n=v.getCurrentItemWidth(),i.width(n),r.infinite?s.css({left:-n*Math.floor(i.length/2)}):(v.clearDisabled(),e(r.navigationTargetSelector).find(".nbs-flexisel-nav-left").addClass("disabled"),s.css({left:0})),r.resize.call(t,s)},100)}),e(r.navigationTargetSelector).find(".nbs-flexisel-nav-left").on("click",function(e){v.scroll(!0)}),e(r.navigationTargetSelector).find(".nbs-flexisel-nav-right").on("click",function(e){v.scroll(!1)}),r.autoPlay.enable&&(v.setAutoplayInterval(),!0===r.autoPlay.pauseOnHover&&s.on({mouseenter:function(){c=!1},mouseleave:function(){c=!0}})),s[0].addEventListener("touchstart",v.touchHandler.handleTouchStart,!1),s[0].addEventListener("touchmove",v.touchHandler.handleTouchMove,!1)},calculateDisplay:function(){var t=e("html").width(),n=u[u.length-1].changePoint;for(var i in u){if(t>=n){f=r.visibleItems,d=r.itemsToScroll;break}if(t<u[i].changePoint){f=u[i].visibleItems,d=u[i].itemsToScroll;break}}},scroll:function(e){if(void 0===e&&(e=!0),1==c){if(c=!1,r.before.call(this,s),n=v.getCurrentItemWidth(),r.autoPlay.enable&&clearInterval(a),r.infinite)s.animate({left:e?"+="+n*d:"-="+n*d},r.animationSpeed,function(){r.after.call(this,s),c=!0,e?v.offsetItemsToBeginning(d):v.offsetItemsToEnd(d),v.offsetSliderPosition(e)});else{var t=n*d;e?s.animate({left:v.calculateNonInfiniteLeftScroll(t)},r.animationSpeed,function(){r.after.call(this,s),c=!0}):s.animate({left:v.calculateNonInfiniteRightScroll(t)},r.animationSpeed,function(){r.after.call(this,s),c=!0})}r.autoPlay.enable&&v.setAutoplayInterval()}},touchHandler:{xDown:null,yDown:null,handleTouchStart:function(e){this.xDown=e.touches[0].clientX,this.yDown=e.touches[0].clientY},handleTouchMove:function(e){if(this.xDown&&this.yDown){var t=e.touches[0].clientX,n=e.touches[0].clientY,i=this.xDown-t;this.yDown;Math.abs(i)>0&&(i>0?v.scroll(!1):v.scroll(!0)),this.xDown=null,this.yDown=null,c=!0}}},getCurrentItemWidth:function(){return s.parent().width()/f},offsetItemsToBeginning:function(e){void 0===e&&(e=1);for(var t=0;t<e;t++)s.children().last().insertBefore(s.children().first())},offsetItemsToEnd:function(e){void 0===e&&(e=1);for(var t=0;t<e;t++)s.children().first().insertAfter(s.children().last())},offsetSliderPosition:function(e){var t=parseInt(s.css("left").replace("px",""));e?t-=n*d:t+=n*d,s.css({left:t})},getOffsetPosition:function(){return parseInt(s.css("left").replace("px",""))},calculateNonInfiniteLeftScroll:function(t){return v.clearDisabled(),v.getOffsetPosition()+t>=0?(e(r.navigationTargetSelector).find(".nbs-flexisel-nav-left").addClass("disabled"),0):v.getOffsetPosition()+t},calculateNonInfiniteRightScroll:function(t){v.clearDisabled();var l=i*n-f*n;return v.getOffsetPosition()-t<=-l?(e(r.navigationTargetSelector).find(".nbs-flexisel-nav-right").addClass("disabled"),-l):v.getOffsetPosition()-t},setAutoplayInterval:function(){a=setInterval(function(){c&&v.scroll(!1)},r.autoPlay.interval)},clearDisabled:function(){var t=e(r.navigationTargetSelector);t.find(".nbs-flexisel-nav-left").removeClass("disabled"),t.find(".nbs-flexisel-nav-right").removeClass("disabled")}};return v[t]?v[t].apply(this,Array.prototype.slice.call(arguments,1

1)):"object"!=typeof t&&t?void e.error('Method "'+method+'" does not exist in flexisel plugin!'):v.init.apply(this)}}(jQuery);