Template:FAFU CHINA/head/js/slick

/* global window, document, define, jQuery, setInterval, clearInterval */

(function(factory) {

   'use strict';
   if (typeof define === 'function' && define.amd) {
       define(['jquery'], factory);
   } else {
       factory(jQuery);
   }

}(function($) {

   'use strict';
   var Slick = window.Slick || {};
   Slick = (function() {
       var instanceUid = 0;
       function Slick(element, settings) {
           var _ = this,
               responsiveSettings, breakpoint;
           _.defaults = {
               accessibility: true,
               arrows: true,
               autoplay: false,
               autoplaySpeed: 3000,
               centerMode: false,
               centerPadding: '50px',
               cssEase: 'ease',
               customPaging: function(slider, i) {
                   return '<button type="button">' + (i + 1) + '</button>';
               },
               dots: false,
               draggable: true,
               easing: 'linear',
               fade: false,
               infinite: true,
               lazyLoad: 'ondemand',
               onBeforeChange: null,
               onAfterChange: null,
               onInit: null,
               onReInit: null,
               pauseOnHover: true,
               responsive: null,
               slide: 'div',
               slidesToShow: 1,
               slidesToScroll: 1,
               speed: 300,
               swipe: true,
               touchMove: true,
               touchThreshold: 5,
               useCSS: true,
               vertical: false
           };
           _.initials = {
               animating: false,
               autoPlayTimer: null,
               currentSlide: 0,
               currentLeft: null,
               direction: 1,
               $dots: null,
               listWidth: null,
               listHeight: null,
               loadIndex: 0,
               $nextArrow: null,
               $prevArrow: null,
               slideCount: null,
               slideWidth: null,
               $slideTrack: null,
               $slides: null,
               sliding: false,
               slideOffset: 0,
               swipeLeft: null,
               $list: null,
               touchObject: {},
               transformsEnabled: false
           };
           $.extend(_, _.initials);
           _.activeBreakpoint = null;
           _.animType = null;
           _.animProp = null;
           _.breakpoints = [];
           _.breakpointSettings = [];
           _.cssTransitions = false;
           _.paused = false;
           _.positionProp = null;
           _.$slider = $(element);
           _.$slidesCache = null;
           _.transformType = null;
           _.transitionType = null;
           _.windowWidth = 0;
           _.windowTimer = null;
           _.options = $.extend({}, _.defaults, settings);
           _.originalSettings = _.options;
           responsiveSettings = _.options.responsive || null;
           if (responsiveSettings && responsiveSettings.length > -1) {
               for (breakpoint in responsiveSettings) {
                   if (responsiveSettings.hasOwnProperty(breakpoint)) {
                       _.breakpoints.push(responsiveSettings[
                           breakpoint].breakpoint);
                       _.breakpointSettings[responsiveSettings[
                           breakpoint].breakpoint] =
                           responsiveSettings[breakpoint].settings;
                   }
               }
               _.breakpoints.sort(function(a, b) {
                   return b - a;
               });
           }
           _.autoPlay = $.proxy(_.autoPlay, _);
           _.autoPlayClear = $.proxy(_.autoPlayClear, _);
           _.changeSlide = $.proxy(_.changeSlide, _);
           _.setPosition = $.proxy(_.setPosition, _);
           _.swipeHandler = $.proxy(_.swipeHandler, _);
           _.dragHandler = $.proxy(_.dragHandler, _);
           _.keyHandler = $.proxy(_.keyHandler, _);
           _.autoPlayIterator = $.proxy(_.autoPlayIterator, _);
           _.instanceUid = instanceUid++;
           _.init();
       }
       return Slick;
   }());
   Slick.prototype.addSlide = function(markup, index, addBefore) {
       var _ = this;
       if (typeof(index) === 'boolean') {
           addBefore = index;
           index = null;
       } else if (index < 0 || (index >= _.slideCount)) {
           return false;
       }
       _.unload();
       if (typeof(index) === 'number') {
           if (index === 0 && _.$slides.length === 0) {
               $(markup).appendTo(_.$slideTrack);
           } else if (addBefore) {
               $(markup).insertBefore(_.$slides.eq(index));
           } else {
               $(markup).insertAfter(_.$slides.eq(index));
           }
       } else {
           if (addBefore === true) {
               $(markup).prependTo(_.$slideTrack);
           } else {
               $(markup).appendTo(_.$slideTrack);
           }
       }
       _.$slides = _.$slideTrack.children(this.options.slide);
       _.$slideTrack.children(this.options.slide).remove();
       _.$slideTrack.append(_.$slides);
       _.$slidesCache = _.$slides;
       _.reinit();
   };
   Slick.prototype.animateSlide = function(targetLeft,
       callback) {
       var animProps = {}, _ = this;
       if (_.transformsEnabled === false) {
           if (_.options.vertical === false) {
               _.$slideTrack.animate({
                   left: targetLeft
               }, _.options.speed, _.options.easing, callback);
           } else {
               _.$slideTrack.animate({
                   top: targetLeft
               }, _.options.speed, _.options.easing, callback);
           }
       } else {
           if (_.cssTransitions === false) {
               $({
                   animStart: _.currentLeft
               }).animate({
                   animStart: targetLeft
               }, {
                   duration: _.options.speed,
                   easing: _.options.easing,
                   step: function(now) {
                       if (_.options.vertical === false) {
                           animProps[_.animType] = 'translate(' +
                               now + 'px, 0px)';
                           _.$slideTrack.css(animProps);
                       } else {
                           animProps[_.animType] = 'translate(0px,' +
                               now + 'px)';
                           _.$slideTrack.css(animProps);
                       }
                   },
                   complete: function() {
                       if (callback) {
                           callback.call();
                       }
                   }
               });
           } else {
               _.applyTransition();
               if (_.options.vertical === false) {
                   animProps[_.animType] = 'translate3d(' + targetLeft + 'px, 0px, 0px)';
               } else {
                   animProps[_.animType] = 'translate3d(0px,' + targetLeft + 'px, 0px)';
               }
               _.$slideTrack.css(animProps);
               if (callback) {
                   setTimeout(function() {
                       _.disableTransition();
                       callback.call();
                   }, _.options.speed);
               }
           }
       }
   };
   Slick.prototype.applyTransition = function(slide) {
       var _ = this,
           transition = {};
       if (_.options.fade === false) {
           transition[_.transitionType] = _.transformType + ' ' + _.options.speed + 'ms ' + _.options.cssEase;
       } else {
           transition[_.transitionType] = 'opacity ' + _.options.speed + 'ms ' + _.options.cssEase;
       }
       if (_.options.fade === false) {
           _.$slideTrack.css(transition);
       } else {
           _.$slides.eq(slide).css(transition);
       }
   };
   Slick.prototype.autoPlay = function() {
       var _ = this;
       if (_.autoPlayTimer) {
           clearInterval(_.autoPlayTimer);
       }
       if (_.slideCount > _.options.slidesToShow && _.paused !== true) {
           _.autoPlayTimer = setInterval(_.autoPlayIterator,
               _.options.autoplaySpeed);
       }
   };
   Slick.prototype.autoPlayClear = function() {
       var _ = this;
       if (_.autoPlayTimer) {
           clearInterval(_.autoPlayTimer);
       }
   };
   Slick.prototype.autoPlayIterator = function() {
       var _ = this;
       if (_.options.infinite === false) {
           if (_.direction === 1) {
               if ((_.currentSlide + 1) === _.slideCount -
                   1) {
                   _.direction = 0;
               }
               _.slideHandler(_.currentSlide + _.options
                   .slidesToScroll);
           } else {
               if ((_.currentSlide - 1 === 0)) {
                   _.direction = 1;
               }
               _.slideHandler(_.currentSlide - _.options
                   .slidesToScroll);
           }
       } else {
           _.slideHandler(_.currentSlide + _.options.slidesToScroll);
       }
   };
   Slick.prototype.buildArrows = function() {
       var _ = this;
       if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
           _.$prevArrow = $(
               '<button type="button" class="slick-prev">Previous</button>').appendTo(
               _.$slider);
           _.$nextArrow = $(
               '<button type="button" class="slick-next">Next</button>').appendTo(
               _.$slider);
           if (_.options.infinite !== true) {
               _.$prevArrow.addClass('slick-disabled');
           }
       }
   };
   Slick.prototype.buildDots = function() {
       var _ = this,
           i, dotString;
       if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
dotString = '
    '; for (i = 0; i <= _.getDotCount(); i += 1) { dotString += '
  • ' + _.options.customPaging.call(this, _, i) + '
  • ';
               }
    
    dotString += '
';
           _.$dots = $(dotString).appendTo(
               _.$slider);
           _.$dots.find('li').first().addClass(
               'slick-active');
       }
   };
   Slick.prototype.buildOut = function() {
       var _ = this;
       _.$slides = _.$slider.children(_.options.slide +
           ':not(.slick-cloned)').addClass(
           'slick-slide');
       _.slideCount = _.$slides.length;
       _.$slidesCache = _.$slides;
       _.$slider.addClass('slick-slider');
       _.$slideTrack = (_.slideCount === 0) ?
           $('<div class="slick-track"/>').appendTo(_.$slider) :
           _.$slides.wrapAll('<div class="slick-track"/>').parent();
       _.$list = _.$slideTrack.wrap(
           '<div class="slick-list"/>').parent();
       _.$slideTrack.css('opacity', 0);
       if (_.options.centerMode === true) {
           _.options.infinite = true;
           _.options.slidesToScroll = 1;
           if (_.options.slidesToShow % 2 === 0) {
               _.options.slidesToShow = 3;
           }
       }
       $('img[data-lazy]', _.$slider).not('[src]').addClass('slick-loading');
       _.setupInfinite();
       _.buildArrows();
       _.buildDots();
       if (_.options.accessibility === true) {
           _.$list.prop('tabIndex', 0);
       }
       _.setSlideClasses(0);
       if (_.options.draggable === true) {
           _.$list.addClass('draggable');
       }
   };
   Slick.prototype.checkResponsive = function() {
       var _ = this,
           breakpoint, targetBreakpoint;
       if (_.originalSettings.responsive && _.originalSettings
           .responsive.length > -1 && _.originalSettings.responsive !== null) {
           targetBreakpoint = null;
           for (breakpoint in _.breakpoints) {
               if (_.breakpoints.hasOwnProperty(breakpoint)) {
                   if ($(window).width() < _.breakpoints[
                       breakpoint]) {
                       targetBreakpoint = _.breakpoints[
                           breakpoint];
                   }
               }
           }
           if (targetBreakpoint !== null) {
               if (_.activeBreakpoint !== null) {
                   if (targetBreakpoint !== _.activeBreakpoint) {
                       _.activeBreakpoint =
                           targetBreakpoint;
                       _.options = $.extend({}, _.defaults,
                           _.breakpointSettings[
                               targetBreakpoint]);
                       _.refresh();
                   }
               } else {
                   _.activeBreakpoint = targetBreakpoint;
                   _.options = $.extend({}, _.defaults,
                       _.breakpointSettings[
                           targetBreakpoint]);
                   _.refresh();
               }
           } else {
               if (_.activeBreakpoint !== null) {
                   _.activeBreakpoint = null;
                   _.options = $.extend({}, _.defaults,
                       _.originalSettings);
                   _.refresh();
               }
           }
       }
   };
   Slick.prototype.changeSlide = function(event) {
       var _ = this;
       switch (event.data.message) {
           case 'previous':
               _.slideHandler(_.currentSlide - _.options
                   .slidesToScroll);
               break;
           case 'next':
               _.slideHandler(_.currentSlide + _.options
                   .slidesToScroll);
               break;
           case 'index':
               _.slideHandler($(event.target).parent().index() * _.options.slidesToScroll);
               break;
           default:
               return false;
       }
   };
   Slick.prototype.destroy = function() {
       var _ = this;
       _.autoPlayClear();
       _.touchObject = {};
       $('.slick-cloned', _.$slider).remove();
       if (_.$dots) {
           _.$dots.remove();
       }
       if (_.$prevArrow) {
           _.$prevArrow.remove();
           _.$nextArrow.remove();
       }
       _.$slides.unwrap().unwrap();
       _.$slides.removeClass(
           'slick-slide slick-active slick-visible').removeAttr('style');
       _.$slider.removeClass('slick-slider');
       _.$slider.removeClass('slick-initialized');
       _.$list.off('.slick');
       $(window).off('.slick-' + _.instanceUid);
   };
   Slick.prototype.disableTransition = function(slide) {
       var _ = this,
           transition = {};
       transition[_.transitionType] = "";
       if (_.options.fade === false) {
           _.$slideTrack.css(transition);
       } else {
           _.$slides.eq(slide).css(transition);
       }
   };
   Slick.prototype.fadeSlide = function(slideIndex, callback) {
       var _ = this;
       if (_.cssTransitions === false) {
           _.$slides.eq(slideIndex).css({
               zIndex: 1000
           });
           _.$slides.eq(slideIndex).animate({
               opacity: 1
           }, _.options.speed, _.options.easing, callback);
       } else {
           _.applyTransition(slideIndex);
           _.$slides.eq(slideIndex).css({
               opacity: 1,
               zIndex: 1000
           });
           if (callback) {
               setTimeout(function() {
                   _.disableTransition(slideIndex);
                   callback.call();
               }, _.options.speed);
           }
       }
   };
   Slick.prototype.filterSlides = function(filter) {
       var _ = this;
       if (filter !== null) {
           _.unload();
           _.$slideTrack.children(this.options.slide).remove();
           _.$slidesCache.filter(filter).appendTo(_.$slideTrack);
           _.reinit();
       }
   };
   Slick.prototype.getCurrent = function() {
       var _ = this;
       return _.currentSlide;
   };
   Slick.prototype.getDotCount = function() {
       var _ = this,
           breaker = 0,
           dotCounter = 0,
           dotCount = 0,
           dotLimit;
       dotLimit = _.options.infinite === true ? _.slideCount + _.options.slidesToShow - _.options.slidesToScroll : _.slideCount;
       while (breaker < dotLimit) {
           dotCount++;
           dotCounter += _.options.slidesToScroll;
           breaker = dotCounter + _.options.slidesToShow;
       }
       return dotCount;
   };
   Slick.prototype.getLeft = function(slideIndex) {
       var _ = this,
           targetLeft,
           verticalHeight,
           verticalOffset = 0;
       _.slideOffset = 0;
       verticalHeight = _.$slides.first().outerHeight();
       if (_.options.infinite === true) {
           if (_.slideCount > _.options.slidesToShow) {
               _.slideOffset = (_.slideWidth * _.options.slidesToShow) * -1;
               verticalOffset = (verticalHeight * _.options.slidesToShow) * -1;
           }
           if (_.slideCount % _.options.slidesToScroll !== 0) {
               if (slideIndex + _.options.slidesToScroll > _.slideCount && _.slideCount > _.options.slidesToShow) {
                   _.slideOffset = ((_.slideCount % _.options.slidesToShow) * _.slideWidth) * -1;
                   verticalOffset = ((_.slideCount % _.options.slidesToShow) * verticalHeight) * -1;
               }
           }
       } else {
           if (_.slideCount % _.options.slidesToShow !== 0) {
               if (slideIndex + _.options.slidesToScroll > _.slideCount && _.slideCount > _.options.slidesToShow) {
                   _.slideOffset = (_.options.slidesToShow * _.slideWidth) - ((_.slideCount % _.options.slidesToShow) * _.slideWidth);
                   verticalOffset = ((_.slideCount % _.options.slidesToShow) * verticalHeight);
               }
           }
       }
       if (_.options.centerMode === true) {
           _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2) - _.slideWidth;
       }
       if (_.options.vertical === false) {
           targetLeft = ((slideIndex * _.slideWidth) * -1) + _.slideOffset;
       } else {
           targetLeft = ((slideIndex * verticalHeight) * -1) + verticalOffset;
       }
       return targetLeft;
   };
   Slick.prototype.init = function() {
       var _ = this;
       if (!$(_.$slider).hasClass('slick-initialized')) {
           $(_.$slider).addClass('slick-initialized');
           _.buildOut();
           _.setProps();
           _.startLoad();
           _.loadSlider();
           _.initializeEvents();
           _.checkResponsive();
       }
       if (_.options.onInit !== null) {
           _.options.onInit.call(this, _);
       }
   };
   Slick.prototype.initArrowEvents = function() {
       var _ = this;
       if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
           _.$prevArrow.on('click.slick', {
               message: 'previous'
           }, _.changeSlide);
           _.$nextArrow.on('click.slick', {
               message: 'next'
           }, _.changeSlide);
       }
   };
   Slick.prototype.initDotEvents = function() {
       var _ = this;
       if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
           $('li', _.$dots).on('click.slick', {
               message: 'index'
           }, _.changeSlide);
       }
   };
   Slick.prototype.initializeEvents = function() {
       var _ = this;
       _.initArrowEvents();
       _.initDotEvents();
       _.$list.on('touchstart.slick mousedown.slick', {
           action: 'start'
       }, _.swipeHandler);
       _.$list.on('touchmove.slick mousemove.slick', {
           action: 'move'
       }, _.swipeHandler);
       _.$list.on('touchend.slick mouseup.slick', {
           action: 'end'
       }, _.swipeHandler);
       _.$list.on('touchcancel.slick mouseleave.slick', {
           action: 'end'
       }, _.swipeHandler);
       if (_.options.pauseOnHover === true && _.options.autoplay === true) {
           _.$list.on('mouseenter.slick', _.autoPlayClear);
           _.$list.on('mouseleave.slick', _.autoPlay);
       }
       if(_.options.accessibility === true) {
           _.$list.on('keydown.slick', _.keyHandler); 
       }
       $(window).on('orientationchange.slick.slick-' + _.instanceUid, function() {
           _.checkResponsive();
           _.setPosition();
       });
       $(window).on('resize.slick.slick-' + _.instanceUid, function() {
           if ($(window).width !== _.windowWidth) {
               clearTimeout(_.windowDelay);
               _.windowDelay = window.setTimeout(function() {
                   _.windowWidth = $(window).width();
                   _.checkResponsive();
                   _.setPosition();
               }, 50);
           }
       });
       $(window).on('load.slick.slick-' + _.instanceUid, _.setPosition);
   };
   Slick.prototype.initUI = function() {
       var _ = this;
       if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
           _.$prevArrow.show();
           _.$nextArrow.show();
       }
       if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
           _.$dots.show();
       }
       if (_.options.autoplay === true) {
           _.autoPlay();
       }
   };
   Slick.prototype.keyHandler = function(event) {
       var _ = this;
       if (event.keyCode === 37) {
           _.changeSlide({
               data: {
                   message: 'previous'
               }
           });
       } else if (event.keyCode === 39) {
           _.changeSlide({
               data: {
                   message: 'next'
               }
           });
       }
   };
   Slick.prototype.lazyLoad = function() {
       var _ = this,
           loadRange, cloneRange, rangeStart, rangeEnd;
       if (_.options.centerMode === true) {
           rangeStart = _.options.slidesToShow + _.currentSlide - 1;
           rangeEnd = rangeStart + _.options.slidesToShow + 2;
       } else {
           rangeStart = _.options.infinite ? _.options.slidesToShow + _.currentSlide : _.currentSlide;
           rangeEnd = rangeStart + _.options.slidesToShow;
       }
       loadRange = _.$slider.find('.slick-slide').slice(rangeStart, rangeEnd);
       $('img[data-lazy]', loadRange).not('[src]').each(function() {
           $(this).css({opacity: 0}).attr('src', $(this).attr('data-lazy')).removeClass('slick-loading').load(function(){
               $(this).animate({ opacity: 1 }, 200);
           });
       });
       if (_.currentSlide >= _.slideCount - _.options.slidesToShow) {
           cloneRange = _.$slider.find('.slick-cloned').slice(0, _.options.slidesToShow);
           $('img[data-lazy]', cloneRange).not('[src]').each(function() {
               $(this).css({opacity: 0}).attr('src', $(this).attr('data-lazy')).removeClass('slick-loading').load(function(){
                   $(this).animate({ opacity: 1 }, 200);
               });
           });
       } else if (_.currentSlide === 0) {
           cloneRange = _.$slider.find('.slick-cloned').slice(_.options.slidesToShow * -1);
           $('img[data-lazy]', cloneRange).not('[src]').each(function() {
               $(this).css({opacity: 0}).attr('src', $(this).attr('data-lazy')).removeClass('slick-loading').load(function(){
                   $(this).animate({ opacity: 1 }, 200);
               });
           });
       }
   };
   Slick.prototype.loadSlider = function() {
       var _ = this;
       _.setPosition();
       _.$slideTrack.css({
           opacity: 1
       });
       _.$slider.removeClass('slick-loading');
       _.initUI();
       if (_.options.lazyLoad === 'progressive') {
           _.progressiveLazyLoad();
       }
   };
   Slick.prototype.postSlide = function(index) {
       var _ = this;
       if (_.options.onAfterChange !== null) {
           _.options.onAfterChange.call(this, _, index);
       }
       _.animating = false;
       _.setPosition();
       _.swipeLeft = null;
       if (_.options.autoplay === true && _.paused === false) {
           _.autoPlay();
       }
   };
   Slick.prototype.progressiveLazyLoad = function() {
       var _ = this,
           imgCount, targetImage;
       imgCount = $('img[data-lazy]').not('[src]').length;
       if (imgCount > 0) {
           targetImage = $($('img[data-lazy]', _.$slider).not('[src]').get(0));
           targetImage.attr('src', targetImage.attr('data-lazy')).removeClass('slick-loading').load(function() {
               _.progressiveLazyLoad();
           });
       }
   };
   Slick.prototype.refresh = function() {
       var _ = this;
       _.destroy();
       $.extend(_, _.initials);
       _.init();
   };
   Slick.prototype.reinit = function() {
       var _ = this;
       _.$slides = _.$slideTrack.children(_.options.slide).addClass(
           'slick-slide');
       _.slideCount = _.$slides.length;
       if (_.currentSlide >= _.slideCount && _.currentSlide !== 0) {
           _.currentSlide = _.currentSlide - _.options.slidesToScroll;
       }
       _.setProps();
       _.setupInfinite();
       _.buildArrows();
       _.updateArrows();
       _.initArrowEvents();
       _.buildDots();
       _.updateDots();
       _.initDotEvents();
       _.setSlideClasses(0);
       _.setPosition();
       if (_.options.onReInit !== null) {
           _.options.onReInit.call(this, _);
       }
   };
   Slick.prototype.removeSlide = function(index, removeBefore) {
       var _ = this;
       if (typeof(index) === 'boolean') {
           removeBefore = index;
           index = removeBefore === true ? 0 : _.slideCount - 1;
       } else {
           index = removeBefore === true ? --index : index;
       }
       if (_.slideCount < 1 || index < 0 || index > _.slideCount - 1) {
           return false;
       }
       _.unload();
       _.$slideTrack.children(this.options.slide).eq(index).remove();
       _.$slides = _.$slideTrack.children(this.options.slide);
       _.$slideTrack.children(this.options.slide).remove();
       _.$slideTrack.append(_.$slides);
       _.$slidesCache = _.$slides;
       _.reinit();
   };
   Slick.prototype.setCSS = function(position) {
       var _ = this,
           positionProps = {}, x, y;
       x = _.positionProp == 'left' ? position + 'px' : '0px';
       y = _.positionProp == 'top' ? position + 'px' : '0px';
       positionProps[_.positionProp] = position;
       if (_.transformsEnabled === false) {
           _.$slideTrack.css(positionProps);
       } else {
           positionProps = {};
           if (_.cssTransitions === false) {
               positionProps[_.animType] = 'translate(' + x + ', ' + y + ')';
               _.$slideTrack.css(positionProps);
           } else {
               positionProps[_.animType] = 'translate3d(' + x + ', ' + y + ', 0px)';
               _.$slideTrack.css(positionProps);
           }
       }
   };
   Slick.prototype.setDimensions = function() {
       var _ = this;
       if (_.options.centerMode === true) {
           _.$slideTrack.children('.slick-slide').width(_.slideWidth);
       } else {
           _.$slideTrack.children('.slick-slide').width(_.slideWidth);
       }


       if (_.options.vertical === false) {
           _.$slideTrack.width(Math.ceil((_.slideWidth * _
               .$slideTrack.children('.slick-slide').length)));
           if (_.options.centerMode === true) {
               _.$list.css({
                   padding: ('0px ' + _.options.centerPadding)
               });
           }
       } else {
           _.$list.height(_.$slides.first().outerHeight() * _.options.slidesToShow);
           _.$slideTrack.height(Math.ceil((_.$slides.first().outerHeight() * _
               .$slideTrack.children('.slick-slide').length)));
           if (_.options.centerMode === true) {
               _.$list.css({
                   padding: (_.options.centerPadding + ' 0px')
               });
           }
       }
   };
   Slick.prototype.setFade = function() {
       var _ = this,
           targetLeft;
       _.$slides.each(function(index, element) {
           targetLeft = (_.slideWidth * index) * -1;
           $(element).css({
               position: 'relative',
               left: targetLeft,
               top: 0,
               zIndex: 800,
               opacity: 0
           });
       });
       _.$slides.eq(_.currentSlide).css({
           zIndex: 900,
           opacity: 1
       });
   };
   Slick.prototype.setPosition = function() {
       var _ = this;
       _.setValues();
       _.setDimensions();
       if (_.options.fade === false) {
           _.setCSS(_.getLeft(_.currentSlide));
       } else {
           _.setFade();
       }
   };
   Slick.prototype.setProps = function() {
       var _ = this;
       _.positionProp = _.options.vertical === true ? 'top' : 'left';
       if (_.positionProp === 'top') {
           _.$slider.addClass('slick-vertical');
       } else {
           _.$slider.removeClass('slick-vertical');
       }
       if (document.body.style.WebkitTransition !== undefined ||
           document.body.style.MozTransition !== undefined ||
           document.body.style.msTransition !== undefined) {
           if(_.options.useCSS === true) {
               _.cssTransitions = true;
           }
       }
       if (document.body.style.MozTransform !== undefined) {
           _.animType = 'MozTransform';
           _.transformType = "-moz-transform";
           _.transitionType = 'MozTransition';
       }
       if (document.body.style.webkitTransform !== undefined) {
           _.animType = 'webkitTransform';
           _.transformType = "-webkit-transform";
           _.transitionType = 'webkitTransition';
       }
       if (document.body.style.msTransform !== undefined) {
           _.animType = 'transform';
           _.transformType = "transform";
           _.transitionType = 'transition';
       }
       _.transformsEnabled = (_.animType !== null);
   };
   Slick.prototype.setValues = function() {
       var _ = this;
       _.listWidth = _.$list.width();
       _.listHeight = _.$list.height();
       if(_.options.vertical === false) {
       _.slideWidth = Math.ceil(_.listWidth / _.options
           .slidesToShow);
       } else {
       _.slideWidth = Math.ceil(_.listWidth);
       }
   };
   Slick.prototype.setSlideClasses = function(index) {
       var _ = this,
           centerOffset, allSlides, indexOffset;
       _.$slider.find('.slick-slide').removeClass('slick-active').removeClass('slick-center');
       allSlides = _.$slider.find('.slick-slide');
       if (_.options.centerMode === true) {
           centerOffset = Math.floor(_.options.slidesToShow / 2);
           if (index >= centerOffset && index <= (_.slideCount - 1) - centerOffset) {
               _.$slides.slice(index - centerOffset, index + centerOffset + 1).addClass('slick-active');
           } else {
               indexOffset = _.options.slidesToShow + index;
               allSlides.slice(indexOffset - centerOffset + 1, indexOffset + centerOffset + 2).addClass('slick-active');
           }
           if (index === 0) {
               allSlides.eq(allSlides.length - 1 - _.options.slidesToShow).addClass('slick-center');
           } else if (index === _.slideCount - 1) {
               allSlides.eq(_.options.slidesToShow).addClass('slick-center');
           }
           _.$slides.eq(index).addClass('slick-center');
       } else {
           if (index > 0 && index < (_.slideCount - _.options.slidesToShow)) {
               _.$slides.slice(index, index + _.options.slidesToShow).addClass('slick-active');
           } else {
               indexOffset = _.options.infinite === true ? _.options.slidesToShow + index : index;
               allSlides.slice(indexOffset, indexOffset + _.options.slidesToShow).addClass('slick-active');
           }
       }
       if (_.options.lazyLoad === 'ondemand') {
           _.lazyLoad();
       }
   };
   Slick.prototype.setupInfinite = function() {
       var _ = this,
           i, slideIndex, infiniteCount;
       if (_.options.fade === true || _.options.vertical === true) {
           _.options.centerMode = false;
       }
       if (_.options.infinite === true && _.options.fade === false) {
           slideIndex = null;
           if (_.slideCount > _.options.slidesToShow) {
               if (_.options.centerMode === true) {
                   infiniteCount = _.options.slidesToShow + 1;
               } else {
                   infiniteCount = _.options.slidesToShow;
               }
               for (i = _.slideCount; i > (_.slideCount -
                   infiniteCount); i -= 1) {
                   slideIndex = i - 1;
                   $(_.$slides[slideIndex]).clone().attr('id', ).prependTo(
                       _.$slideTrack).addClass('slick-cloned');
               }
               for (i = 0; i < infiniteCount; i += 1) {
                   slideIndex = i;
                   $(_.$slides[slideIndex]).clone().attr('id', ).appendTo(
                       _.$slideTrack).addClass('slick-cloned');
               }
               _.$slideTrack.find('.slick-cloned').find('[id]').each(function() {
                   $(this).attr('id', );
               });
           }
       }
   };
   Slick.prototype.slideHandler = function(index) {
       var targetSlide, animSlide, slideLeft, unevenOffset, targetLeft = null,
           _ = this;
       if (_.animating === true) {
           return false;
       }
       targetSlide = index;
       targetLeft = _.getLeft(targetSlide);
       slideLeft = _.getLeft(_.currentSlide);
       unevenOffset = _.slideCount % _.options.slidesToScroll !== 0 ? _.options.slidesToScroll : 0;
       _.currentLeft = _.swipeLeft === null ? slideLeft : _.swipeLeft;
       if (_.options.infinite === false && (index < 0 || index > (_.slideCount - _.options.slidesToShow + unevenOffset))) {
           targetSlide = _.currentSlide;
           _.animateSlide(slideLeft, function() {
               _.postSlide(targetSlide);
           });
           return false;
       }
       if (_.options.autoplay === true) {
           clearInterval(_.autoPlayTimer);
       }
       if (targetSlide < 0) {
           if (_.slideCount % _.options.slidesToScroll !== 0) {
               animSlide = _.slideCount - (_.slideCount % _.options.slidesToScroll);
           } else {
               animSlide = _.slideCount - _.options.slidesToScroll;
           }
       } else if (targetSlide > (_.slideCount - 1)) {
           animSlide = 0;
       } else {
           animSlide = targetSlide;
       }
       _.animating = true;
       if (_.options.onBeforeChange !== null && index !== _.currentSlide) {
           _.options.onBeforeChange.call(this, _, _.currentSlide, animSlide);
       }
       _.currentSlide = animSlide;
       _.setSlideClasses(_.currentSlide);
       _.updateDots();
       _.updateArrows();
       if (_.options.fade === true) {
           _.fadeSlide(animSlide, function() {
               _.postSlide(animSlide);
           });
           return false;
       }
       _.animateSlide(targetLeft, function() {
           _.postSlide(animSlide);
       });
   };
   Slick.prototype.startLoad = function() {
       var _ = this;
       if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
           _.$prevArrow.hide();
           _.$nextArrow.hide();
       }
       if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
           _.$dots.hide();
       }
       _.$slider.addClass('slick-loading');
   };
   Slick.prototype.swipeDirection = function() {
       var xDist, yDist, r, swipeAngle, _ = this;
       xDist = _.touchObject.startX - _.touchObject.curX;
       yDist = _.touchObject.startY - _.touchObject.curY;
       r = Math.atan2(yDist, xDist);
       swipeAngle = Math.round(r * 180 / Math.PI);
       if (swipeAngle < 0) {
           swipeAngle = 360 - Math.abs(swipeAngle);
       }
       if ((swipeAngle <= 45) && (swipeAngle >= 0)) {
           return 'left';
       }
       if ((swipeAngle <= 360) && (swipeAngle >= 315)) {
           return 'left';
       }
       if ((swipeAngle >= 135) && (swipeAngle <= 225)) {
           return 'right';
       }
       return 'vertical';
   };
   Slick.prototype.swipeEnd = function(event) {
       var _ = this;
       _.$list.removeClass('dragging');
       if (_.touchObject.curX === undefined) {
           return false;
       }
       if (_.touchObject.swipeLength >= _.touchObject.minSwipe) {
           $(event.target).on('click.slick', function(event) {
               event.stopImmediatePropagation();
               event.stopPropagation();
               event.preventDefault();
               $(event.target).off('click.slick');
           });
           switch (_.swipeDirection()) {
               case 'left':
                   _.slideHandler(_.currentSlide + _.options.slidesToScroll);
                   _.touchObject = {};
                   break;
               case 'right':
                   _.slideHandler(_.currentSlide - _.options.slidesToScroll);
                   _.touchObject = {};
                   break;
           }
       } else {
           if(_.touchObject.startX !== _.touchObject.curX) {
               _.slideHandler(_.currentSlide);
               _.touchObject = {};
           }
       }
   };
   Slick.prototype.swipeHandler = function(event) {
       var _ = this;
       if ('ontouchend' in document && _.options.swipe === false) {
           return false;
       } else if (_.options.draggable === false && !event.originalEvent.touches) {
           return false;
       }
       _.touchObject.fingerCount = event.originalEvent && event.originalEvent.touches !== undefined ?
           event.originalEvent.touches.length : 1;
       _.touchObject.minSwipe = _.listWidth / _.options
           .touchThreshold;
       switch (event.data.action) {
           case 'start':
               _.swipeStart(event);
               break;
           case 'move':
               _.swipeMove(event);
               break;
           case 'end':
               _.swipeEnd(event);
               break;
       }
   };
   Slick.prototype.swipeMove = function(event) {
       var _ = this,
           curLeft, swipeDirection, positionOffset, touches;
       touches = event.originalEvent !== undefined ? event.originalEvent.touches : null;
       curLeft = _.getLeft(_.currentSlide);
       if (!_.$list.hasClass('dragging') || touches && touches.length !== 1) {
           return false;
       }
       _.touchObject.curX = touches !== undefined ? touches[0].pageX : event.clientX;
       _.touchObject.curY = touches !== undefined ? touches[0].pageY : event.clientY;
       _.touchObject.swipeLength = Math.round(Math.sqrt(
           Math.pow(_.touchObject.curX - _.touchObject.startX, 2)));
       swipeDirection = _.swipeDirection();
       if (swipeDirection === 'vertical') {
           return;
       }
       if (event.originalEvent !== undefined && _.touchObject.swipeLength > 4) {
           event.preventDefault();
       }
       positionOffset = _.touchObject.curX > _.touchObject.startX ? 1 : -1;
       if (_.options.vertical === false) {
           _.swipeLeft = curLeft + _.touchObject.swipeLength * positionOffset;
       } else {
           _.swipeLeft = curLeft + (_.touchObject
               .swipeLength * (_.$list.height() / _.listWidth)) * positionOffset;
       }
       if (_.options.fade === true || _.options.touchMove === false) {
           return false;
       }
       if (_.animating === true) {
           _.swipeLeft = null;
           return false;
       }
       _.setCSS(_.swipeLeft);
   };
   Slick.prototype.swipeStart = function(event) {
       var _ = this,
           touches;
       if (_.touchObject.fingerCount !== 1 || _.slideCount <= _.options.slidesToShow) {
           _.touchObject = {};
           return false;
       }
       if (event.originalEvent !== undefined && event.originalEvent.touches !== undefined) {
           touches = event.originalEvent.touches[0];
       }
       _.touchObject.startX = _.touchObject.curX = touches !== undefined ? touches.pageX : event.clientX;
       _.touchObject.startY = _.touchObject.curY = touches !== undefined ? touches.pageY : event.clientY;
       _.$list.addClass('dragging');
   };
   Slick.prototype.unfilterSlides = function() {
       var _ = this;
       if (_.$slidesCache !== null) {
           _.unload();
           _.$slideTrack.children(this.options.slide).remove();
           _.$slidesCache.appendTo(_.$slideTrack);
           _.reinit();
       }
   };
   Slick.prototype.unload = function() {
       var _ = this;
       $('.slick-cloned', _.$slider).remove();
       if (_.$dots) {
           _.$dots.remove();
       }
       if (_.$prevArrow) {
           _.$prevArrow.remove();
           _.$nextArrow.remove();
       }
       _.$slides.removeClass(
           'slick-slide slick-active slick-visible').removeAttr('style');
   };
   Slick.prototype.updateArrows = function() {
       var _ = this;
       if (_.options.arrows === true && _.options.infinite !==
           true && _.slideCount > _.options.slidesToShow) {
           _.$prevArrow.removeClass('slick-disabled');
           _.$nextArrow.removeClass('slick-disabled');
           if (_.currentSlide === 0) {
               _.$prevArrow.addClass('slick-disabled');
               _.$nextArrow.removeClass('slick-disabled');
           } else if (_.currentSlide >= _.slideCount - _.options.slidesToShow) {
               _.$nextArrow.addClass('slick-disabled');
               _.$prevArrow.removeClass('slick-disabled');
           }
       }
   };
   Slick.prototype.updateDots = function() {
       var _ = this;
       if (_.$dots !== null) {
           _.$dots.find('li').removeClass('slick-active');
           _.$dots.find('li').eq(_.currentSlide / _.options.slidesToScroll).addClass(
               'slick-active');
       }
   };
   $.fn.slick = function(options) {
       var _ = this;
       return _.each(function(index, element) {
           element.slick = new Slick(element, options);
       });
   };
   $.fn.slickAdd = function(slide, slideIndex, addBefore) {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.addSlide(slide, slideIndex, addBefore);
       });
   };
   $.fn.slickCurrentSlide = function() {
       var _ = this;
       return _.get(0).slick.getCurrent();
   };
   $.fn.slickFilter = function(filter) {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.filterSlides(filter);
       });
   };
   $.fn.slickGoTo = function(slide) {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.slideHandler(slide);
       });
   };
   $.fn.slickNext = function() {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.changeSlide({
               data: {
                   message: 'next'
               }
           });
       });
   };
   $.fn.slickPause = function() {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.autoPlayClear();
           element.slick.paused = true;
       });
   };
   $.fn.slickPlay = function() {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.paused = false;
           element.slick.autoPlay();
       });
   };
   $.fn.slickPrev = function() {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.changeSlide({
               data: {
                   message: 'previous'
               }
           });
       });
   };
   $.fn.slickRemove = function(slideIndex, removeBefore) {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.removeSlide(slideIndex, removeBefore);
       });
   };
   $.fn.slickSetOption = function(option, value, refresh) {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.options[option] = value;
           if (refresh === true) {
               element.slick.unload();
               element.slick.reinit();
           }
       });
   };
   $.fn.slickUnfilter = function() {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.unfilterSlides();
       });
   };
   $.fn.unslick = function() {
       var _ = this;
       return _.each(function(index, element) {
           element.slick.destroy();
       });
   };

}));