/*!
* baguetteBox.js
* @author feimosi
* @version 0.7.0
* @url https://github.com/feimosi/baguetteBox.js
*/var baguetteBox=(function(){var leftArrow='<svg width="44" height="60" xmlns="http://www.w3.org/2000/svg" version="1.1">'+
'<polyline points="30 10 10 30 30 50" stroke="rgba(255,255,255,0.5)" stroke-width="4"'+
'stroke-linecap="butt" fill="none" stroke-linejoin="round"/>'+
'</svg>',rightArrow='<svg width="44" height="60" xmlns="http://www.w3.org/2000/svg" version="1.1">'+
'<polyline points="14 10 34 30 14 50" stroke="rgba(255,255,255,0.5)" stroke-width="4"'+
'stroke-linecap="butt" fill="none" stroke-linejoin="round"/>'+
'</svg>',closeX='<svg width="30" height="30" xmlns="http://www.w3.org/2000/svg" version="1.1">'+
'<g stroke="rgb(160, 160, 160)" stroke-width="4">'+
'<line x1="5" y1="5" x2="25" y2="25"/>'+
'<line x1="5" y1="25" x2="25" y2="5"/>'+
'</g></svg>';var overlayID='baguetteBox-overlay';var sliderID='baguetteBox-slider';var options={},defaults={captions:true,buttons:'auto',async:false,preload:2,animation:'slideIn'};var supports={};var overlay,slider,previousButton,nextButton,closeButton;var currentIndex=0,currentGallery=-1;var touchStartX;var touchFlag=false;var galleries=[];var imagesMap=[];var imagesArray=[];if(!Array.prototype.forEach){Array.prototype.forEach=function(callback,thisArg){var len=this.length;for(var i=0;i<len;i++){callback.call(thisArg,this[i],i,this);}};}
function run(selector,userOptions){supports.transforms=testTransformsSupport();supports.svg=testSVGSupport();buildOverlay();galleries=document.querySelectorAll(selector);[].forEach.call(galleries,function(galleryElement,galleryIndex){var galleryID=imagesMap.length;imagesMap.push(galleryElement.getElementsByTagName('a'));imagesMap[galleryID].options=userOptions;[].forEach.call(imagesMap[galleryID],function(imageElement,imageIndex){bind(imageElement,'click',function(event){event.preventDefault?event.preventDefault():event.returnValue=false;prepareOverlay(galleryID);showOverlay(imageIndex);});});});}
function buildOverlay(){overlay=document.getElementById(overlayID);if(overlay){slider=document.getElementById(sliderID);previousButton=document.getElementById('previous-button');nextButton=document.getElementById('next-button');closeButton=document.getElementById('close-button');return;}
overlay=document.createElement('div');overlay.id=overlayID;document.getElementsByTagName('body')[0].appendChild(overlay);slider=document.createElement('div');slider.id=sliderID;overlay.appendChild(slider);previousButton=document.createElement('button');previousButton.id='previous-button';previousButton.innerHTML=supports.svg?leftArrow:'&lt;';overlay.appendChild(previousButton);nextButton=document.createElement('button');nextButton.id='next-button';nextButton.innerHTML=supports.svg?rightArrow:'&gt;';overlay.appendChild(nextButton);closeButton=document.createElement('button');closeButton.id='close-button';closeButton.innerHTML=supports.svg?closeX:'X';overlay.appendChild(closeButton);previousButton.className=nextButton.className=closeButton.className='baguetteBox-button';bindEvents();}
function bindEvents(){bind(overlay,'click',function(event){if(event.target&&event.target.nodeName!=="IMG")
hideOverlay();});bind(document.getElementById('previous-button'),'click',function(event){event.stopPropagation?event.stopPropagation():event.cancelBubble=true;showPreviousImage();});bind(document.getElementById('next-button'),'click',function(event){event.stopPropagation?event.stopPropagation():event.cancelBubble=true;showNextImage();});bind(document.getElementById('close-button'),'click',function(event){event.stopPropagation?event.stopPropagation():event.cancelBubble=true;hideOverlay();});bind(overlay,'touchstart',function(event){touchStartX=event.changedTouches[0].pageX;});bind(overlay,'touchmove',function(event){if(touchFlag)
return;event.preventDefault?event.preventDefault():event.returnValue=false;touch=event.touches[0]||event.changedTouches[0];if(touch.pageX-touchStartX>40){touchFlag=true;showPreviousImage();}else if(touch.pageX-touchStartX<-40){touchFlag=true;showNextImage();}});bind(overlay,'touchend',function(event){touchFlag=false;});bind(document,'keydown',function(event){switch(event.keyCode){case 37:showPreviousImage();break;case 39:showNextImage();break;case 27:hideOverlay();break;}});}
function prepareOverlay(galleryIndex){if(currentGallery===galleryIndex)
return;currentGallery=galleryIndex;setOptions(imagesMap[galleryIndex].options);while(slider.firstChild)
slider.removeChild(slider.firstChild);imagesArray.length=0;for(var i=0;i<imagesMap[galleryIndex].length;i++){imagesArray.push(returnImageContainer());slider.appendChild(imagesArray[i]);}}
function setOptions(newOptions){if(!newOptions)
newOptions={};for(var item in defaults){options[item]=defaults[item];if(typeof newOptions[item]!=='undefined')
options[item]=newOptions[item];}
slider.style.transition=slider.style.webkitTransition=options.animation==='fadeIn'?'opacity .4s ease':'';if(options.buttons==='auto'&&('ontouchstart'in window||imagesMap[currentGallery].length===1))
options.buttons=false;previousButton.style.display=nextButton.style.display=options.buttons?'':'none';}
function returnImageContainer(){var fullImage=document.createElement('div');fullImage.className='full-image';return fullImage;}
function showOverlay(index){if(overlay.style.display==='block')
return;currentIndex=index;loadImage(currentIndex,function(){preloadNext(currentIndex);preloadPrev(currentIndex);});updateOffset();overlay.style.display='block';setTimeout(function(){overlay.className='visible';},50);}
function hideOverlay(){if(overlay.style.display==='none')
return;overlay.className='';setTimeout(function(){overlay.style.display='none';},500);}
function loadImage(index,callback){var imageContainer=imagesArray[index];if(typeof imageContainer==='undefined')
return;if(imageContainer.getElementsByTagName('img')[0]){if(callback)
callback();return;}
imageElement=imagesMap[currentGallery][index];imageCaption=imageElement.getAttribute('data-caption')||imageElement.title;imageSrc=getImageSrc(imageElement);var figure=document.createElement('figure');var image=document.createElement('img');var figcaption=document.createElement('figcaption');imageContainer.appendChild(figure);figure.innerHTML='<div class="spinner">'+
'<div class="double-bounce1"></div>'+
'<div class="double-bounce2"></div>'+
'</div>';image.onload=function(){var spinner=this.parentNode.querySelector('.spinner');this.parentNode.removeChild(spinner);if(!options.async&&callback)
callback();};image.setAttribute('src',imageSrc);figure.appendChild(image);if(options.captions&&imageCaption){figcaption.innerHTML=imageCaption;figure.appendChild(figcaption);}
if(options.async&&callback)
callback();}
function getImageSrc(image){var result=imageElement.getAttribute('href');if(image.dataset){var srcs=[];for(var item in image.dataset){if(item.substring(0,3)==='at-'&&!isNaN(item.substring(3)))
srcs[item.replace('at-','')]=image.dataset[item];}
keys=Object.keys(srcs).sort(function(a,b){return parseInt(a)<parseInt(b)?-1:1;});var width=window.innerWidth*window.devicePixelRatio;for(var i=0;i<keys.length;i++){if(keys[i]>=width){result=srcs[keys[i]];break;}
result=srcs[keys[i]];}}
return result;}
function showNextImage(){if(currentIndex<=imagesArray.length-2){currentIndex++;updateOffset();preloadNext(currentIndex);}else{slider.className='bounce-from-right';setTimeout(function(){slider.className='';},400);}}
function showPreviousImage(){if(currentIndex>=1){currentIndex--;updateOffset();preloadPrev(currentIndex);}else{slider.className='bounce-from-left';setTimeout(function(){slider.className='';},400);}}
function updateOffset(){var offset=-currentIndex*100+'%';if(options.animation==='fadeIn'){slider.style.opacity=0;setTimeout(function(){supports.transforms?slider.style.transform=slider.style.webkitTransform='translate3d('+offset+',0,0)':slider.style.left=offset;slider.style.opacity=1;},400);}else{supports.transforms?slider.style.transform=slider.style.webkitTransform='translate3d('+offset+',0,0)':slider.style.left=offset;}}
function testTransformsSupport(){var div=document.createElement('div');return typeof div.style.perspective!=='undefined'||typeof div.style.webkitPerspective!=='undefined';}
function testSVGSupport(){var div=document.createElement('div');div.innerHTML='<svg/>';return(div.firstChild&&div.firstChild.namespaceURI)=='http://www.w3.org/2000/svg';}
function preloadNext(index){if(index-currentIndex>=options.preload)
return;loadImage(index+1,function(){preloadNext(index+1);});}
function preloadPrev(index){if(currentIndex-index>=options.preload)
return;loadImage(index-1,function(){preloadPrev(index-1);});}
function bind(element,event,callback){if(element.addEventListener)
element.addEventListener(event,callback,false);else
element.attachEvent('on'+event,callback);}
return{run:run};})();