/*!
 * viewer.js v1.3.0
 * https://fengyuanchen.github.io/viewerjs
 *
 * copyright 2015-present chen fengyuan
 * released under the mit license
 *
 * date: 2018-10-25t12:41:54.899z
 */
!function(t,i){"object"==typeof exports&&"undefined"!=typeof module?module.exports=i():"function"==typeof define&&define.amd?define(i):t.viewer=i()}(this,function(){"use strict";function i(t){return(i="function"==typeof symbol&&"symbol"==typeof symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof symbol&&t.constructor===symbol&&t!==symbol.prototype?"symbol":typeof t})(t)}function s(t,i){for(var e=0;e<i.length;e++){var n=i[e];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),object.defineproperty(t,n.key,n)}}var o={backdrop:!0,button:!0,navbar:!0,title:!0,toolbar:!0,classname:"",container:"body",filter:null,fullscreen:!0,initialviewindex:0,inline:!1,interval:5e3,keyboard:!0,loading:!0,loop:!0,minwidth:200,minheight:100,movable:!0,zoomable:!0,rotatable:!0,scalable:!0,toggleondblclick:!0,tooltip:!0,transition:!0,zindex:2015,zindexinline:0,zoomratio:.1,minzoomratio:.01,maxzoomratio:100,url:"src",ready:null,show:null,shown:null,hide:null,hidden:null,view:null,viewed:null,zoom:null,zoomed:null},a="undefined"!=typeof window,r=a?window:{},p="viewer",c="move",d="switch",u="zoom",m="".concat(p,"-active"),w="".concat(p,"-close"),b="".concat(p,"-fade"),y="".concat(p,"-fixed"),x="".concat(p,"-fullscreen"),h="".concat(p,"-fullscreen-exit"),z="".concat(p,"-hide"),e="".concat(p,"-hide-md-down"),n="".concat(p,"-hide-sm-down"),l="".concat(p,"-hide-xs-down"),f="".concat(p,"-in"),d="".concat(p,"-invisible"),g="".concat(p,"-loading"),v="".concat(p,"-move"),k="".concat(p,"-open"),e="".concat(p,"-show"),i="".concat(p,"-transition"),s="click",t="dblclick",l="dragstart",n="hidden",m="hide",c="keydown",r="load",y=r.pointerevent?"pointerdown":"touchstart mousedown",x=r.pointerevent?"pointermove":"touchmove mousemove",q=r.pointerevent?"pointerup pointercancel":"touchend touchcancel mouseup",o="ready",f="resize",w="show",a="shown",p="transitionend",h="view",j="viewed",v="wheel mousewheel dommousescroll",b="zoom",k="zoomed",u="".concat(p,"action"),z=["zoom-in","zoom-out","one-to-one","reset","prev","play","next","rotate-left","rotate-right","flip-horizontal","flip-vertical"],$=/\s\s*/;function _(t){return"string"==typeof t}var g=number.isnan||r.isnan;function j(t){return"number"==typeof t&&!g(t)}function q(t){return void 0===t}function tt(t){return"object"===i(t)&&null!==t}var it=object.prototype.hasownproperty;function et(t){if(!tt(t))return!1;try{var i=t.constructor,e=i.prototype;return i&&e&&it.call(e,"isprototypeof")}catch(t){return!1}}function nt(t){return"function"==typeof t}function st(i,e){if(i&&nt(e))if(array.isarray(i)||j(i.length)){var t,n=i.length;for(t=0;t<n&&!1!==e.call(i,i[t],t,i);t+=1);}else tt(i)&&object.keys(i).foreach(function(t){e.call(i,i[t],t,i)});return i}var ot=object.assign||function(e){for(var t=arguments.length,i=new array(1<t?t-1:0),n=1;n<t;n++)i[n-1]=arguments[n];return 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t,i=this.options,e=this.parent;i.inline&&(t={width:math.max(e.offsetwidth,i.minwidth),height:math.max(e.offsetheight,i.minheight)},this.parentdata=t),!this.fulled&&t||(t=this.containerdata),this.viewerdata=ot({},t)},renderviewer:function(){this.options.inline&&!this.fulled&&rt(this.viewer,this.viewerdata)},initlist:function(){var a=this,t=this.element,r=this.options,i=this.list,h=[];st(this.images,function(t,i){var e,n=t.src,s=t.alt||(_(e=n)?e.replace(/^.*\//,"").replace(/[?&#].*$/,""):""),o=r.url;_(o)?o=t.getattribute(o):nt(o)&&(o=o.call(a,t)),(n||o)&&h.push("<li><img"+' src="'.concat(n||o,'"')+' role="button" data-viewer-action="view"'+' data-index="'.concat(i,'"')+' data-original-url="'.concat(o||n,'"')+' alt="'.concat(s,'"')+"></li>")}),i.innerhtml=h.join(""),this.items=i.getelementsbytagname("li"),st(this.items,function(i){var t=i.firstelementchild;ft(t,"filled",!0),r.loading&&ht(i,g),pt(t,r,function(t){r.loading&&lt(i,g),a.loadimage(t)},{once:!0})}),r.transition&&pt(t,j,function(){ht(i,i)},{once:!0})},renderlist:function(t){var i=t||this.index,e=this.items[i].offsetwidth||30,n=e+1;rt(this.list,ot({width:n*this.length},bt({translatex:(this.viewerdata.width-e)/2-n*i})))},resetlist:function(){var t=this.list;t.innerhtml="",lt(t,i),rt(t,bt({translatex:0}))},initimage:function(r){var t,h=this,l=this.options,i=this.image,e=this.viewerdata,n=this.footer.offsetheight,c=e.width,d=math.max(e.height-n,n),u=this.imagedata||{};this.imageinitializing={abort:function(){t.onload=null}},t=xt(i,function(t,i){var e=t/i,n=c,s=d;h.imageinitializing=!1,c<d*e?s=c/e:n=d*e;var 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t=this.canvas,i=this.element,e=this.viewer;pt(e,s,this.onclick=this.click.bind(this)),pt(e,v,this.onwheel=this.wheel.bind(this)),pt(e,l,this.ondragstart=this.dragstart.bind(this)),this.options.toggleondblclick&&pt(t,t,this.ondblclick=this.dblclick.bind(this)),pt(t,y,this.onpointerdown=this.pointerdown.bind(this)),pt(i.ownerdocument,x,this.onpointermove=this.pointermove.bind(this)),pt(i.ownerdocument,q,this.onpointerup=this.pointerup.bind(this)),pt(i.ownerdocument,c,this.onkeydown=this.keydown.bind(this)),pt(window,f,this.onresize=this.resize.bind(this))},unbind:function(){var t=this.canvas,i=this.element,e=this.viewer;vt(e,s,this.onclick),vt(e,v,this.onwheel),vt(e,l,this.ondragstart),this.options.toggleondblclick&&vt(t,t,this.ondblclick),vt(t,y,this.onpointerdown),vt(i.ownerdocument,x,this.onpointermove),vt(i.ownerdocument,q,this.onpointerup),vt(i.ownerdocument,c,this.onkeydown),vt(window,f,this.onresize)}},et={click:function(t){var i=t.target,e=this.options,n=this.imagedata;switch(mt(i,u)){case"mix":this.played?this.stop():e.inline?this.fulled?this.exit():this.full():this.hide();break;case"hide":this.hide();break;case"view":this.view(mt(i,"index"));break;case"zoom-in":this.zoom(.1,!0);break;case"zoom-out":this.zoom(-.1,!0);break;case"one-to-one":this.toggle();break;case"reset":this.reset();break;case"prev":this.prev(e.loop);break;case"play":this.play(e.fullscreen);break;case"next":this.next(e.loop);break;case"rotate-left":this.rotate(-90);break;case"rotate-right":this.rotate(90);break;case"flip-horizontal":this.scalex(-n.scalex||-1);break;case"flip-vertical":this.scaley(-n.scaley||-1);break;default:this.played&&this.stop()}},dblclick:function(t){t.target.parentelement===this.canvas&&this.toggle()},load:function(){var t=this;this.timeout&&(cleartimeout(this.timeout),this.timeout=!1);var i=this.element,e=this.options,n=this.image,s=this.index,o=this.viewerdata;lt(n,d),e.loading&&lt(this.canvas,g),n.style.csstext="height:0;"+"margin-left:".concat(o.width/2,"px;")+"margin-top:".concat(o.height/2,"px;")+"max-width:none!important;position:absolute;width:0;",this.initimage(function(){ct(n,v,e.movable),ct(n,i,e.transition),t.renderimage(function(){t.viewed=!0,t.viewing=!1,nt(e.viewed)&&pt(i,j,e.viewed,{once:!0}),wt(i,j,{originalimage:t.images[s],index:s,image:n})})})},loadimage:function(t){var o=t.target,i=o.parentnode,a=i.offsetwidth||30,r=i.offsetheight||50,h=!!mt(o,"filled");xt(o,function(t,i){var e=t/i,n=a,s=r;a<r*e?h?n=r*e:s=a/e:h?s=a/e:n=r*e,rt(o,ot({width:n,height:s},bt({translatex:(a-n)/2,translatey:(r-s)/2})))})},keydown:function(t){var i=this.options;if(this.fulled&&i.keyboard)switch(t.keycode||t.which||t.charcode){case 27:this.played?this.stop():i.inline?this.fulled&&this.exit():this.hide();break;case 32:this.played&&this.stop();break;case 37:this.prev(i.loop);break;case 38:t.preventdefault(),this.zoom(i.zoomratio,!0);break;case 39:this.next(i.loop);break;case 40:t.preventdefault(),this.zoom(-i.zoomratio,!0);break;case 48:case 49:t.ctrlkey&&(t.preventdefault(),this.toggle())}},dragstart:function(t){"img"===t.target.tagname.tolowercase()&&t.preventdefault()},pointerdown:function(t){var i=this.options,e=this.pointers;if(this.viewed&&!this.showing&&!this.viewing&&!this.hiding){t.preventdefault(),t.changedtouches?st(t.changedtouches,function(t){e[t.identifier]=dt(t)}):e[t.pointerid||0]=dt(t);var n=!!i.movable&&c;1<object.keys(e).length?n=u:"touch"!==t.pointertype&&"touchstart"!==t.type||!this.isswitchable()||(n=d),!i.transition||n!==c&&n!==u||lt(this.image,i),this.action=n}},pointermove:function(t){var i=this.pointers,e=this.action;this.viewed&&e&&(t.preventdefault(),t.changedtouches?st(t.changedtouches,function(t){ot(i[t.identifier]||{},dt(t,!0))}):ot(i[t.pointerid||0]||{},dt(t,!0)),this.change(t))},pointerup:function(t){var i=this.action,e=this.pointers;t.changedtouches?st(t.changedtouches,function(t){delete e[t.identifier]}):delete e[t.pointerid||0],i&&(t.preventdefault(),!this.options.transition||i!==c&&i!==u||ht(this.image,i),this.action=!1)},resize:function(){var i=this;if(this.isshown&&!this.hiding&&(this.initcontainer(),this.initviewer(),this.renderviewer(),this.renderlist(),this.viewed&&this.initimage(function(){i.renderimage()}),this.played)){if(this.options.fullscreen&&this.fulled&&!document.fullscreenelement&&!document.mozfullscreenelement&&!document.webkitfullscreenelement&&!document.msfullscreenelement)return void this.stop();st(this.player.getelementsbytagname("img"),function(t){pt(t,r,i.loadimage.bind(i),{once:!0}),wt(t,r)})}},wheel:function(t){var i=this;if(this.viewed&&(t.preventdefault(),!this.wheeling)){this.wheeling=!0,settimeout(function(){i.wheeling=!1},50);var e=number(this.options.zoomratio)||.1,n=1;t.deltay?n=0<t.deltay?1:-1:t.wheeldelta?n=-t.wheeldelta/120:t.detail&&(n=0<t.detail?1:-1),this.zoom(-n*e,!0,t)}}},it={show:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.element,e=this.options;if(e.inline||this.showing||this.isshown||this.showing)return this;if(!this.ready)return this.build(),this.ready&&this.show(t),this;if(nt(e.show)&&pt(i,w,e.show,{once:!0}),!1===wt(i,w)||!this.ready)return this;this.hiding&&this.transitioning.abort(),this.showing=!0,this.open();var n=this.viewer;if(lt(n,z),e.transition&&!t){var s=this.shown.bind(this);this.transitioning={abort:function(){vt(n,p,s),lt(n,f)}},ht(n,i),n.offsetwidth,pt(n,p,s,{once:!0}),ht(n,f)}else ht(n,f),this.shown();return this},hide:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.element,e=this.options;if(e.inline||this.hiding||!this.isshown&&!this.showing)return this;if(nt(e.hide)&&pt(i,m,e.hide,{once:!0}),!1===wt(i,m))return this;this.showing&&this.transitioning.abort(),this.hiding=!0,this.played?this.stop():this.viewing&&this.viewing.abort();var n=this.viewer;if(e.transition&&!t){var s=this.hidden.bind(this),o=function(){pt(n,p,s,{once:!0}),lt(n,f)};this.transitioning={abort:function(){this.viewed?vt(this.image,p,o):vt(n,p,s)}},this.viewed?(pt(this.image,p,o,{once:!0}),this.zoomto(0,!1,!1,!0)):o()}else lt(n,f),this.hidden();return this},view:function(){var e=this,t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:this.options.initialviewindex;if(t=number(t)||0,!this.isshown)return this.index=t,this.show();if(this.hiding||this.played||t<0||t>=this.length||this.viewed&&t===this.index)return this;this.viewing&&this.viewing.abort();var i=this.element,n=this.options,s=this.title,o=this.canvas,a=this.items[t],r=a.queryselector("img"),h=mt(r,"originalurl"),l=r.getattribute("alt"),c=document.createelement("img");if(c.src=h,c.alt=l,nt(n.view)&&pt(i,h,n.view,{once:!0}),!1===wt(i,h,{originalimage:this.images[t],index:t,image:c})||!this.isshown||this.hiding||this.played)return this;this.image=c,lt(this.items[this.index],m),ht(a,m),this.viewed=!1,this.index=t,this.imagedata={},ht(c,d),n.loading&&ht(o,g),o.innerhtml="",o.appendchild(c),this.renderlist(),s.innerhtml="";var d,u=function(){var t=e.imagedata,i=array.isarray(n.title)?n.title[1]:n.title;s.innerhtml=nt(i)?i.call(e,c,t):"".concat(l," (").concat(t.naturalwidth," × ").concat(t.naturalheight,")")};return pt(i,j,u,{once:!0}),this.viewing={abort:function(){vt(i,j,u),c.complete?this.imagerendering?this.imagerendering.abort():this.imageinitializing&&this.imageinitializing.abort():(vt(c,r,d),this.timeout&&cleartimeout(this.timeout))}},c.complete?this.load():(pt(c,r,d=this.load.bind(this),{once:!0}),this.timeout&&cleartimeout(this.timeout),this.timeout=settimeout(function(){lt(c,d),e.timeout=!1},1e3)),this},prev:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.index-1;return i<0&&(i=t?this.length-1:0),this.view(i),this},next:function(){var t=0<arguments.length&&void 0!==arguments[0]&&arguments[0],i=this.length-1,e=this.index+1;return i<e&&(e=t?0:i),this.view(e),this},move:function(t,i){var e=this.imagedata;return this.moveto(q(t)?t:e.left+number(t),q(i)?i:e.top+number(i)),this},moveto:function(t){var i=1<arguments.length&&void 0!==arguments[1]?arguments[1]:t,e=this.imagedata;if(t=number(t),i=number(i),this.viewed&&!this.played&&this.options.movable){var 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t=this.element,i=this.options;this.fulled=!0,this.isshown=!0,this.render(),this.bind(),this.showing=!1,nt(i.shown)&&pt(t,a,i.shown,{once:!0}),!1!==wt(t,a)&&this.ready&&this.isshown&&!this.hiding&&this.view(this.index)},hidden:function(){var t=this.element,i=this.options;this.fulled=!1,this.viewed=!1,this.isshown=!1,this.close(),this.unbind(),ht(this.viewer,z),this.resetlist(),this.resetimage(),this.hiding=!1,this.destroyed||(nt(i.hidden)&&pt(t,n,i.hidden,{once:!0}),wt(t,n))},requestfullscreen:function(){var t=this.element.ownerdocument;if(this.fulled&&!t.fullscreenelement&&!t.mozfullscreenelement&&!t.webkitfullscreenelement&&!t.msfullscreenelement){var i=t.documentelement;i.requestfullscreen?i.requestfullscreen():i.msrequestfullscreen?i.msrequestfullscreen():i.mozrequestfullscreen?i.mozrequestfullscreen():i.webkitrequestfullscreen&&i.webkitrequestfullscreen(element.allow_keyboard_input)}},exitfullscreen:function(){if(this.fulled){var t=this.element.ownerdocument;t.exitfullscreen?t.exitfullscreen():t.msexitfullscreen?t.msexitfullscreen():t.mozcancelfullscreen?t.mozcancelfullscreen():t.webkitexitfullscreen&&t.webkitexitfullscreen()}},change:function(t){var i,e,h,n=this.options,s=this.pointers,o=s[object.keys(s)[0]],a=o.endx-o.startx,r=o.endy-o.starty;switch(this.action){case c:this.move(a,r);break;case u:this.zoom((e=ot({},i=s),h=[],st(i,function(r,t){delete e[t],st(e,function(t){var i=math.abs(r.startx-t.startx),e=math.abs(r.starty-t.starty),n=math.abs(r.endx-t.endx),s=math.abs(r.endy-t.endy),o=math.sqrt(i*i+e*e),a=(math.sqrt(n*n+s*s)-o)/o;h.push(a)})}),h.sort(function(t,i){return math.abs(t)<math.abs(i)}),h[0]),!1,t);break;case d:this.action="switched";var l=math.abs(a);1<l&&l>math.abs(r)&&(this.pointers={},1<a?this.prev(n.loop):a<-1&&this.next(n.loop))}st(s,function(t){t.startx=t.endx,t.starty=t.endy})},isswitchable:function(){var t=this.imagedata,i=this.viewerdata;return 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e=this,t=this.element,n=this.options;if(!t[p]){t[p]=this;var i="img"===t.tagname.tolowercase(),s=[];if(st(i?[t]:t.queryselectorall("img"),function(t){nt(n.filter)?n.filter.call(e,t)&&s.push(t):s.push(t)}),s.length){this.isimg=i,this.length=s.length,this.images=s;var o=t.ownerdocument,a=o.body||o.documentelement;if(this.body=a,this.scrollbarwidth=window.innerwidth-o.documentelement.clientwidth,this.initialbodypaddingright=window.getcomputedstyle(a).paddingright,q(document.createelement(p).style.transition)&&(n.transition=!1),n.inline){var r=0,h=function(){var t;(r+=1)===e.length&&(e.initializing=!1,e.delaying={abort:function(){cleartimeout(t)}},t=settimeout(function(){e.delaying=!1,e.build()},0))};this.initializing={abort:function(){st(s,function(t){t.complete||vt(t,r,h)})}},st(s,function(t){t.complete?h():pt(t,r,h,{once:!0})})}else pt(t,s,this.onstart=function(t){var i=t.target;"img"!==i.tagname.tolowercase()||nt(n.filter)&&!n.filter.call(e,i)||e.view(e.images.indexof(i))})}}}},{key:"build",value:function(){if(!this.ready){var t=this.element,h=this.options,i=t.parentnode,e=document.createelement("div");e.innerhtml='<div class="viewer-container" touch-action="none"><div class="viewer-canvas"></div><div class="viewer-footer"><div class="viewer-title"></div><div class="viewer-toolbar"></div><div class="viewer-navbar"><ul class="viewer-list"></ul></div></div><div class="viewer-tooltip"></div><div role="button" class="viewer-button" data-viewer-action="mix"></div><div class="viewer-player"></div></div>';var n=e.queryselector(".".concat(p,"-container")),s=n.queryselector(".".concat(p,"-title")),o=n.queryselector(".".concat(p,"-toolbar")),a=n.queryselector(".".concat(p,"-navbar")),r=n.queryselector(".".concat(p,"-button")),l=n.queryselector(".".concat(p,"-canvas"));if(this.parent=i,this.viewer=n,this.title=s,this.toolbar=o,this.navbar=a,this.button=r,this.canvas=l,this.footer=n.queryselector(".".concat(p,"-footer")),this.tooltipbox=n.queryselector(".".concat(p,"-tooltip")),this.player=n.queryselector(".".concat(p,"-player")),this.list=n.queryselector(".".concat(p,"-list")),ht(s,h.title?zt(array.isarray(h.title)?h.title[0]:h.title):z),ht(a,h.navbar?zt(h.navbar):z),ct(r,z,!h.button),h.backdrop&&(ht(n,"".concat(p,"-backdrop")),h.inline||!0!==h.backdrop||ft(l,u,"hide")),_(h.classname)&&h.classname&&h.classname.split($).foreach(function(t){ht(n,t)}),h.toolbar){var c=document.createelement("ul"),d=et(h.toolbar),u=z.slice(0,3),m=z.slice(7,9),f=z.slice(9);d||ht(o,zt(h.toolbar)),st(d?h.toolbar:z,function(t,i){var e=d&&et(t),n=d?ut(i):t,s=e&&!q(t.show)?t.show:t;if(s&&(h.zoomable||-1===u.indexof(n))&&(h.rotatable||-1===m.indexof(n))&&(h.scalable||-1===f.indexof(n))){var o=e&&!q(t.size)?t.size:t,a=e&&!q(t.click)?t.click:t,r=document.createelement("li");r.setattribute("role","button"),ht(r,"".concat(p,"-").concat(n)),nt(a)||ft(r,u,n),j(s)&&ht(r,zt(s)),-1!==["small","large"].indexof(o)?ht(r,"".concat(p,"-").concat(o)):"play"===n&&ht(r,"".concat(p,"-large")),nt(a)&&pt(r,s,a),c.appendchild(r)}}),o.appendchild(c)}else ht(o,z);if(!h.rotatable){var g=o.queryselectorall('li[class*="rotate"]');ht(g,d),st(g,function(t){o.appendchild(t)})}if(h.inline)ht(r,x),rt(n,{zindex:h.zindexinline}),"static"===window.getcomputedstyle(i).position&&rt(i,{position:"relative"}),i.insertbefore(n,t.nextsibling);else{ht(r,w),ht(n,y),ht(n,b),ht(n,z),rt(n,{zindex:h.zindex});var v=h.container;_(v)&&(v=t.ownerdocument.queryselector(v)),v||(v=this.body),v.appendchild(n)}h.inline&&(this.render(),this.bind(),this.isshown=!0),this.ready=!0,nt(h.ready)&&pt(t,o,h.ready,{once:!0}),!1!==wt(t,o)?this.ready&&h.inline&&this.view(this.index):this.ready=!1}}}])&&s(t.prototype,i),n&&s(t,n),e}();return ot(lt.prototype,t,kt,et,it,st),lt});