/*! lg-thumbnail - v1.0.0 - 2016-09-20
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2016 Sachin N; Licensed GPLv3 */
!function(a,b){"function"==typeof define&&define.amd?define([],function(){return b()}):"object"==typeof exports?module.exports=b():b()}(this,function(){!function(a,b,c,d){"use strict";var e={thumbnail:!0,animateThumb:!0,currentPagerPosition:"middle",thumbWidth:100,thumbContHeight:100,thumbMargin:5,exThumbImage:!1,showThumbByDefault:!0,toogleThumb:!0,pullCaptionUp:!0,enableThumbDrag:!0,enableThumbSwipe:!0,swipeThreshold:50,loadYoutubeThumbnail:!0,youtubeThumbSize:1,loadVimeoThumbnail:!0,vimeoThumbSize:"thumbnail_small",loadDailymotionThumbnail:!0},f=function(b){return this.core=a(b).data("lightGallery"),this.core.s=a.extend({},e,this.core.s),this.$el=a(b),this.$thumbOuter=null,this.thumbOuterWidth=0,this.thumbTotalWidth=this.core.$items.length*(this.core.s.thumbWidth+this.core.s.thumbMargin),this.thumbIndex=this.core.index,this.left=0,this.init(),this};f.prototype.init=function(){var a=this;this.core.s.thumbnail&&this.core.$items.length>1&&(this.core.s.showThumbByDefault&&setTimeout(function(){a.core.$outer.addClass("lg-thumb-open")},700),this.core.s.pullCaptionUp&&this.core.$outer.addClass("lg-pull-caption-up"),this.build(),this.core.s.animateThumb?(this.core.s.enableThumbDrag&&!this.core.isTouch&&this.core.doCss()&&this.enableThumbDrag(),this.core.s.enableThumbSwipe&&this.core.isTouch&&this.core.doCss()&&this.enableThumbSwipe(),this.thumbClickable=!1):this.thumbClickable=!0,this.toogle(),this.thumbkeyPress())},f.prototype.build=function(){function c(a,b,c){var d,h=e.core.isVideo(a,c)||{},i="";h.youtube||h.vimeo||h.dailymotion?h.youtube?d=e.core.s.loadYoutubeThumbnail?"//img.youtube.com/vi/"+h.youtube[1]+"/"+e.core.s.youtubeThumbSize+".jpg":b:h.vimeo?e.core.s.loadVimeoThumbnail?(d="//i.vimeocdn.com/video/error_"+g+".jpg",i=h.vimeo[1]):d=b:h.dailymotion&&(d=e.core.s.loadDailymotionThumbnail?"//www.dailymotion.com/thumbnail/video/"+h.dailymotion[1]:b):d=b,f+='<div data-vimeo-id="'+i+'" class="lg-thumb-item" style="width:'+e.core.s.thumbWidth+"px; margin-right: "+e.core.s.thumbMargin+'px"><img src="'+d+'" /></div>',i=""}var d,e=this,f="",g="",h='<div class="lg-thumb-outer"><div class="lg-thumb group"></div></div>';switch(this.core.s.vimeoThumbSize){case"thumbnail_large":g="640";break;case"thumbnail_medium":g="200x150";break;case"thumbnail_small":g="100x75"}if(e.core.$outer.addClass("lg-has-thumb"),e.core.$outer.find(".lg").append(h),e.$thumbOuter=e.core.$outer.find(".lg-thumb-outer"),e.thumbOuterWidth=e.$thumbOuter.width(),e.core.s.animateThumb&&e.core.$outer.find(".lg-thumb").css({width:e.thumbTotalWidth+"px",position:"relative"}),this.core.s.animateThumb&&e.$thumbOuter.css("height",e.core.s.thumbContHeight+"px"),e.core.s.dynamic)for(var i=0;i<e.core.s.dynamicEl.length;i++)c(e.core.s.dynamicEl[i].src,e.core.s.dynamicEl[i].thumb,i);else e.core.$items.each(function(b){e.core.s.exThumbImage?c(a(this).attr("href")||a(this).attr("data-src"),a(this).attr(e.core.s.exThumbImage),b):c(a(this).attr("href")||a(this).attr("data-src"),a(this).find("img").attr("src"),b)});e.core.$outer.find(".lg-thumb").html(f),d=e.core.$outer.find(".lg-thumb-item"),d.each(function(){var b=a(this),c=b.attr("data-vimeo-id");c&&a.getJSON("//www.vimeo.com/api/v2/video/"+c+".json?callback=?",{format:"json"},function(a){b.find("img").attr("src",a[0][e.core.s.vimeoThumbSize])})}),d.eq(e.core.index).addClass("active"),e.core.$el.on("onBeforeSlide.lg.tm",function(){d.removeClass("active"),d.eq(e.core.index).addClass("active")}),d.on("click.lg touchend.lg",function(){var b=a(this);setTimeout(function(){(e.thumbClickable&&!e.core.lgBusy||!e.core.doCss())&&(e.core.index=b.index(),e.core.slide(e.core.index,!1,!0))},50)}),e.core.$el.on("onBeforeSlide.lg.tm",function(){e.animateThumb(e.core.index)}),a(b).on("resize.lg.thumb orientationchange.lg.thumb",function(){setTimeout(function(){e.animateThumb(e.core.index),e.thumbOuterWidth=e.$thumbOuter.width()},200)})},f.prototype.setTranslate=function(a){this.core.$outer.find(".lg-thumb").css({transform:"translate3d(-"+a+"px, 0px, 0px)"})},f.prototype.animateThumb=function(a){var b=this.core.$outer.find(".lg-thumb");if(this.core.s.animateThumb){var c;switch(this.core.s.currentPagerPosition){case"left":c=0;break;case"middle":c=this.thumbOuterWidth/2-this.core.s.thumbWidth/2;break;case"right":c=this.thumbOuterWidth-this.core.s.thumbWidth}this.left=(this.core.s.thumbWidth+this.core.s.thumbMargin)*a-1-c,this.left>this.thumbTotalWidth-this.thumbOuterWidth&&(this.left=this.thumbTotalWidth-this.thumbOuterWidth),this.left<0&&(this.left=0),this.core.lGalleryOn?(b.hasClass("on")||this.core.$outer.find(".lg-thumb").css("transition-duration",this.core.s.speed+"ms"),this.core.doCss()||b.animate({left:-this.left+"px"},this.core.s.speed)):this.core.doCss()||b.css("left",-this.left+"px"),this.setTranslate(this.left)}},f.prototype.enableThumbDrag=function(){var c=this,d=0,e=0,f=!1,g=!1,h=0;c.$thumbOuter.addClass("lg-grab"),c.core.$outer.find(".lg-thumb").on("mousedown.lg.thumb",function(a){c.thumbTotalWidth>c.thumbOuterWidth&&(a.preventDefault(),d=a.pageX,f=!0,c.core.$outer.scrollLeft+=1,c.core.$outer.scrollLeft-=1,c.thumbClickable=!1,c.$thumbOuter.removeClass("lg-grab").addClass("lg-grabbing"))}),a(b).on("mousemove.lg.thumb",function(a){f&&(h=c.left,g=!0,e=a.pageX,c.$thumbOuter.addClass("lg-dragging"),h-=e-d,h>c.thumbTotalWidth-c.thumbOuterWidth&&(h=c.thumbTotalWidth-c.thumbOuterWidth),h<0&&(h=0),c.setTranslate(h))}),a(b).on("mouseup.lg.thumb",function(){g?(g=!1,c.$thumbOuter.removeClass("lg-dragging"),c.left=h,Math.abs(e-d)<c.core.s.swipeThreshold&&(c.thumbClickable=!0)):c.thumbClickable=!0,f&&(f=!1,c.$thumbOuter.removeClass("lg-grabbing").addClass("lg-grab"))})},f.prototype.enableThumbSwipe=function(){var a=this,b=0,c=0,d=!1,e=0;a.core.$outer.find(".lg-thumb").on("touchstart.lg",function(c){a.thumbTotalWidth>a.thumbOuterWidth&&(c.preventDefault(),b=c.originalEvent.targetTouches[0].pageX,a.thumbClickable=!1)}),a.core.$outer.find(".lg-thumb").on("touchmove.lg",function(f){a.thumbTotalWidth>a.thumbOuterWidth&&(f.preventDefault(),c=f.originalEvent.targetTouches[0].pageX,d=!0,a.$thumbOuter.addClass("lg-dragging"),e=a.left,e-=c-b,e>a.thumbTotalWidth-a.thumbOuterWidth&&(e=a.thumbTotalWidth-a.thumbOuterWidth),e<0&&(e=0),a.setTranslate(e))}),a.core.$outer.find(".lg-thumb").on("touchend.lg",function(){a.thumbTotalWidth>a.thumbOuterWidth&&d?(d=!1,a.$thumbOuter.removeClass("lg-dragging"),Math.abs(c-b)<a.core.s.swipeThreshold&&(a.thumbClickable=!0),a.left=e):a.thumbClickable=!0})},f.prototype.toogle=function(){var a=this;a.core.s.toogleThumb&&(a.core.$outer.addClass("lg-can-toggle"),a.$thumbOuter.append('<span class="lg-toogle-thumb lg-icon"></span>'),a.core.$outer.find(".lg-toogle-thumb").on("click.lg",function(){a.core.$outer.toggleClass("lg-thumb-open")}))},f.prototype.thumbkeyPress=function(){var c=this;a(b).on("keydown.lg.thumb",function(a){38===a.keyCode?(a.preventDefault(),c.core.$outer.addClass("lg-thumb-open")):40===a.keyCode&&(a.preventDefault(),c.core.$outer.removeClass("lg-thumb-open"))})},f.prototype.destroy=function(){this.core.s.thumbnail&&this.core.$items.length>1&&(a(b).off("resize.lg.thumb orientationchange.lg.thumb keydown.lg.thumb"),this.$thumbOuter.remove(),this.core.$outer.removeClass("lg-has-thumb"))},a.fn.lightGallery.modules.Thumbnail=f}(jQuery,window,document)});