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 * https://fengyuanchen.github.io/viewerjs
 *
 * Copyright 2015-present Chen Fengyuan
 * Released under the MIT license
 *
 * Date: 2024-11-24T04:32:19.116Z
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this;this.showing&&this.transitioning.abort(),this.hiding=!0,this.played?this.stop():this.viewing&&this.viewing.abort();var a=this.viewer,o=this.image,s=function(){p(a,L),t.hidden()};if(r.transition&&!i){var c=function(h){h&&h.target===a&&(T(a,P,c),t.hidden())},u=function(){B(a,A)?(v(a,P,c),p(a,L)):s()};this.transitioning={abort:function(){t.viewed&&B(o,A)?T(o,P,u):B(a,A)&&T(a,P,c)}},this.viewed&&B(o,A)?(v(o,P,u,{once:!0}),this.zoomTo(0,!1,null,null,!0)):u()}else s();return this},view:function(){var t=this,i=arguments.length>0&&arguments[0]!==void 0?arguments[0]:this.options.initialViewIndex;if(i=Number(i)||0,this.hiding||this.played||i<0||i>=this.length||this.viewed&&i===this.index)return this;if(!this.isShown)return this.index=i,this.show();this.viewing&&this.viewing.abort();var n=this.element,r=this.options,a=this.title,o=this.canvas,s=this.items[i],c=s.querySelector("img"),u=G(c,"originalUrl"),l=c.getAttribute("alt"),h=document.createElement("img");if(S(r.inheritedAttributes,function(_){var I=c.getAttribute(_);I!==null&&h.setAttribute(_,I)}),h.src=u,h.alt=l,E(r.view)&&v(n,le,r.view,{once:!0}),N(n,le,{originalImage:this.images[i],index:i,image:h})===!1||!this.isShown||this.hiding||this.played)return this;var f=this.items[this.index];f&&(p(f,ct),f.removeAttribute("aria-selected")),d(s,ct),s.setAttribute("aria-selected",!0),r.focus&&s.focus(),this.image=h,this.viewed=!1,this.index=i,this.imageData={},d(h,at),r.loading&&d(o,Q),o.innerHTML="",o.appendChild(h),this.renderList(),a.innerHTML="";var g=function(){var I=t.imageData,C=Array.isArray(r.title)?r.title[1]:r.title;a.innerHTML=bi(E(C)?C.call(t,h,I):"".concat(l," (").concat(I.naturalWidth," × ").concat(I.naturalHeight,")"))},w,y;return v(n,st,g,{once:!0}),this.viewing={abort:function(){T(n,st,g),h.complete?t.imageRendering?t.imageRendering.abort():t.imageInitializing&&t.imageInitializing.abort():(h.src="",T(h,z,w),t.timeout&&clearTimeout(t.timeout))}},h.complete?this.load():(v(h,z,w=function(){T(h,q,y),t.load()},{once:!0}),v(h,q,y=function(){T(h,z,w),t.timeout&&(clearTimeout(t.timeout),t.timeout=!1),p(h,at),r.loading&&p(t.canvas,Q)},{once:!0}),this.timeout&&clearTimeout(this.timeout),this.timeout=setTimeout(function(){p(h,at),t.timeout=!1},1e3)),this},prev:function(){var t=arguments.length>0&&arguments[0]!==void 0?arguments[0]:!1,i=this.index-1;return i<0&&(i=t?this.length-1:0),this.view(i),this},next:function(){var t=arguments.length>0&&arguments[0]!==void 0?arguments[0]:!1,i=this.length-1,n=this.index+1;return n>i&&(n=t?0:i),this.view(n),this},move:function(t){var i=arguments.length>1&&arguments[1]!==void 0?arguments[1]:t,n=this.imageData;return this.moveTo(K(t)?t:n.x+Number(t),K(i)?i:n.y+Number(i)),this},moveTo:function(t){var i=this,n=arguments.length>1&&arguments[1]!==void 0?arguments[1]:t,r=arguments.length>2&&arguments[2]!==void 0?arguments[2]:null,a=this.element,o=this.options,s=this.imageData;if(t=Number(t),n=Number(n),this.viewed&&!this.played&&o.movable){var c=s.x,u=s.y,l=!1;if(D(t)?l=!0:t=c,D(n)?l=!0:n=u,l){if(E(o.move)&&v(a,ue,o.move,{once:!0}),N(a,ue,{x:t,y:n,oldX:c,oldY:u,originalEvent:r})===!1)return this;s.x=t,s.y=n,s.left=t,s.top=n,this.moving=!0,this.renderImage(function(){i.moving=!1,E(o.moved)&&v(a,ce,o.moved,{once:!0}),N(a,ce,{x:t,y:n,oldX:c,oldY:u,originalEvent:r},{cancelable:!1})})}}return this},rotate:function(t){return this.rotateTo((this.imageData.rotate||0)+Number(t)),this},rotateTo:function(t){var i=this,n=this.element,r=this.options,a=this.imageData;if(t=Number(t),D(t)&&this.viewed&&!this.played&&r.rotatable){var 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this},zoom:function(t){var i=arguments.length>1&&arguments[1]!==void 0?arguments[1]:!1,n=arguments.length>2&&arguments[2]!==void 0?arguments[2]:null,r=arguments.length>3&&arguments[3]!==void 0?arguments[3]:null,a=this.imageData;return t=Number(t),t<0?t=1/(1-t):t=1+t,this.zoomTo(a.width*t/a.naturalWidth,i,n,r),this},zoomTo:function(t){var i=this,n=arguments.length>1&&arguments[1]!==void 0?arguments[1]:!1,r=arguments.length>2&&arguments[2]!==void 0?arguments[2]:null,a=arguments.length>3&&arguments[3]!==void 0?arguments[3]:null,o=arguments.length>4&&arguments[4]!==void 0?arguments[4]:!1,s=this.element,c=this.options,u=this.pointers,l=this.imageData,h=l.x,f=l.y,g=l.width,w=l.height,y=l.naturalWidth,_=l.naturalHeight;if(t=Math.max(0,t),D(t)&&this.viewed&&!this.played&&(o||c.zoomable)){if(!o){var I=Math.max(.01,c.minZoomRatio),C=Math.min(100,c.maxZoomRatio);t=Math.min(Math.max(t,I),C)}if(a)switch(a.type){case"wheel":c.zoomRatio>=.055&&t>.95&&t<1.05&&(t=1);break;case"pointermove":case"touchmove":case"mousemove":t>.99&&t<1.01&&(t=1);break}var O=y*t,V=_*t,R=O-g,b=V-w,j=l.ratio;if(E(c.zoom)&&v(s,me,c.zoom,{once:!0}),N(s,me,{ratio:t,oldRatio:j,originalEvent:a})===!1)return this;if(this.zooming=!0,a){var M=yi(this.viewer),W=u&&Object.keys(u).length>0?Oi(u):{pageX:a.pageX,pageY:a.pageY};l.x-=R*((W.pageX-M.left-h)/g),l.y-=b*((W.pageY-M.top-f)/w)}else Z(r)&&D(r.x)&&D(r.y)?(l.x-=R*((r.x-h)/g),l.y-=b*((r.y-f)/w)):(l.x-=R/2,l.y-=b/2);l.left=l.x,l.top=l.y,l.width=O,l.height=V,l.oldRatio=j,l.ratio=t,this.renderImage(function(){i.zooming=!1,E(c.zoomed)&&v(s,ge,c.zoomed,{once:!0}),N(s,ge,{ratio:t,oldRatio:j,originalEvent:a},{cancelable:!1})}),n&&this.tooltip()}return this},play:function(){var t=this,i=arguments.length>0&&arguments[0]!==void 0?arguments[0]:!1;if(!this.isShown||this.played)return this;var n=this.element,r=this.options;if(E(r.play)&&v(n,pe,r.play,{once:!0}),N(n,pe)===!1)return this;var a=this.player,o=this.loadImage.bind(this),s=[],c=0,u=0;if(this.played=!0,this.onLoadWhenPlay=o,i&&this.requestFullscreen(i),d(a,$),S(this.items,function(f,g){var w=f.querySelector("img"),y=document.createElement("img");y.src=G(w,"originalUrl"),y.alt=w.getAttribute("alt"),y.referrerPolicy=w.referrerPolicy,c+=1,d(y,pt),ut(y,A,r.transition),B(f,ct)&&(d(y,L),u=g),s.push(y),v(y,z,o,{once:!0}),a.appendChild(y)}),D(r.interval)&&r.interval>0){var l=function(){clearTimeout(t.playing.timeout),p(s[u],L),u-=1,u=u>=0?u:c-1,d(s[u],L),t.playing.timeout=setTimeout(l,r.interval)},h=function(){clearTimeout(t.playing.timeout),p(s[u],L),u+=1,u=u<c?u:0,d(s[u],L),t.playing.timeout=setTimeout(h,r.interval)};c>1&&(this.playing={prev:l,next:h,timeout:setTimeout(h,r.interval)})}return this},stop:function(){var t=this;if(!this.played)return this;var i=this.element,n=this.options;if(E(n.stop)&&v(i,be,n.stop,{once:!0}),N(i,be)===!1)return this;var r=this.player;return clearTimeout(this.playing.timeout),this.playing=!1,this.played=!1,S(r.getElementsByTagName("img"),function(a){T(a,z,t.onLoadWhenPlay)}),p(r,$),r.innerHTML="",this.exitFullscreen(),this},full:function(){var t=this,i=this.options,n=this.viewer,r=this.image,a=this.list;return!this.isShown||this.played||this.fulled||!i.inline?this:(this.fulled=!0,this.open(),d(this.button,$t),i.transition&&(p(a,A),this.viewed&&p(r,A)),d(n,jt),n.setAttribute("role","dialog"),n.setAttribute("aria-labelledby",this.title.id),n.setAttribute("aria-modal",!0),n.removeAttribute("style"),F(n,{zIndex:i.zIndex}),i.focus&&this.enforceFocus(),this.initContainer(),this.viewerData=k({},this.containerData),this.renderList(),this.viewed&&this.initImage(function(){t.renderImage(function(){i.transition&&setTimeout(function(){d(r,A),d(a,A)},0)})}),this)},exit:function(){var t=this,i=this.options,n=this.viewer,r=this.image,a=this.list;return!this.isShown||this.played||!this.fulled||!i.inline?this:(this.fulled=!1,this.close(),p(this.button,$t),i.transition&&(p(a,A),this.viewed&&p(r,A)),i.focus&&this.clearEnforceFocus(),n.removeAttribute("role"),n.removeAttribute("aria-labelledby"),n.removeAttribute("aria-modal"),p(n,jt),F(n,{zIndex:i.zIndexInline}),this.viewerData=k({},this.parentData),this.renderViewer(),this.renderList(),this.viewed&&this.initImage(function(){t.renderImage(function(){i.transition&&setTimeout(function(){d(r,A),d(a,A)},0)})}),this)},tooltip:function(){var t=this,i=this.options,n=this.tooltipBox,r=this.imageData;return!this.viewed||this.played||!i.tooltip?this:(n.textContent="".concat(Math.round(r.ratio*100),"%"),this.tooltipping?clearTimeout(this.tooltipping):i.transition?(this.fading&&N(n,P),d(n,$),d(n,pt),d(n,A),n.removeAttribute("aria-hidden"),n.initialOffsetWidth=n.offsetWidth,d(n,L)):(d(n,$),n.removeAttribute("aria-hidden")),this.tooltipping=setTimeout(function(){i.transition?(v(n,P,function(){p(n,$),p(n,pt),p(n,A),n.setAttribute("aria-hidden",!0),t.fading=!1},{once:!0}),p(n,L),t.fading=!0):(p(n,$),n.setAttribute("aria-hidden",!0)),t.tooltipping=!1},1e3),this)},toggle:function(){var t=arguments.length>0&&arguments[0]!==void 0?arguments[0]:null;return this.imageData.ratio===1?this.zoomTo(this.imageData.oldRatio,!0,null,t):this.zoomTo(1,!0,null,t),this},reset:function(){return this.viewed&&!this.played&&(this.imageData=k({},this.initialImageData),this.renderImage()),this},update:function(){var t=this,i=this.element,n=this.options,r=this.isImg;if(r&&!i.parentNode)return this.destroy();var a=[];if(S(r?[i]:i.querySelectorAll("img"),function(u){E(n.filter)?n.filter.call(t,u)&&a.push(u):t.getImageURL(u)&&a.push(u)}),!a.length)return this;if(this.images=a,this.length=a.length,this.ready){var o=[];if(S(this.items,function(u,l){var h=u.querySelector("img"),f=a[l];f&&h?(f.src!==h.src||f.alt!==h.alt)&&o.push(l):o.push(l)}),F(this.list,{width:"auto"}),this.initList(),this.isShown)if(this.length){if(this.viewed){var s=o.indexOf(this.index);if(s>=0)this.viewed=!1,this.view(Math.max(Math.min(this.index-s,this.length-1),0));else{var c=this.items[this.index];d(c,ct),c.setAttribute("aria-selected",!0)}}}else this.image=null,this.viewed=!1,this.index=0,this.imageData={},this.canvas.innerHTML="",this.title.innerHTML=""}else this.build();return this},destroy:function(){var t=this.element,i=this.options;return t[m]?(this.destroyed=!0,this.ready?(this.played&&this.stop(),i.inline?(this.fulled&&this.exit(),this.unbind()):this.isShown?(this.viewing&&(this.imageRendering?this.imageRendering.abort():this.imageInitializing&&this.imageInitializing.abort()),this.hiding&&this.transitioning.abort(),this.hidden()):this.showing&&(this.transitioning.abort(),this.hidden()),this.ready=!1,this.viewer.parentNode.removeChild(this.viewer)):i.inline&&(this.delaying?this.delaying.abort():this.initializing&&this.initializing.abort()),i.inline||T(t,tt,this.onStart),t[m]=void 0,this):this}},_i={getImageURL:function(t){var i=this.options.url;return lt(i)?i=t.getAttribute(i):E(i)?i=i.call(this,t):i="",i},enforceFocus:function(){var t=this;this.clearEnforceFocus(),v(document,Zt,this.onFocusin=function(i){var n=t.viewer,r=i.target;if(!(r===document||r===n||n.contains(r))){for(;r;){if(r.getAttribute("tabindex")!==null||r.getAttribute("aria-modal")==="true")return;r=r.parentElement}n.focus()}})},clearEnforceFocus:function(){this.onFocusin&&(T(document,Zt,this.onFocusin),this.onFocusin=null)},open:function(){var t=this.body;d(t,Bt),this.scrollbarWidth>0&&(t.style.paddingRight="".concat(this.scrollbarWidth+(parseFloat(this.initialBodyComputedPaddingRight)||0),"px"))},close:function(){var t=this.body;p(t,Bt),this.scrollbarWidth>0&&(t.style.paddingRight=this.initialBodyPaddingRight)},shown:function(){var t=this.element,i=this.options,n=this.viewer;this.fulled=!0,this.isShown=!0,this.render(),this.bind(),this.showing=!1,i.focus&&(n.focus(),this.enforceFocus()),E(i.shown)&&v(t,ae,i.shown,{once:!0}),N(t,ae)!==!1&&this.ready&&this.isShown&&!this.hiding&&this.view(this.index)},hidden:function(){var t=this.element,i=this.options,n=this.viewer;i.fucus&&this.clearEnforceFocus(),this.close(),this.unbind(),d(n,H),n.removeAttribute("role"),n.removeAttribute("aria-labelledby"),n.removeAttribute("aria-modal"),n.setAttribute("aria-hidden",!0),this.resetList(),this.resetImage(),this.fulled=!1,this.viewed=!1,this.isShown=!1,this.hiding=!1,this.destroyed||(E(i.hidden)&&v(t,se,i.hidden,{once:!0}),N(t,se,null,{cancelable:!1}))},requestFullscreen:function(t){var i=this.element.ownerDocument;if(this.fulled&&!(i.fullscreenElement||i.webkitFullscreenElement||i.mozFullScreenElement||i.msFullscreenElement)){var n=i.documentElement;n.requestFullscreen?Z(t)?n.requestFullscreen(t):n.requestFullscreen():n.webkitRequestFullscreen?n.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT):n.mozRequestFullScreen?n.mozRequestFullScreen():n.msRequestFullscreen&&n.msRequestFullscreen()}},exitFullscreen:function(){var t=this.element.ownerDocument;this.fulled&&(t.fullscreenElement||t.webkitFullscreenElement||t.mozFullScreenElement||t.msFullscreenElement)&&(t.exitFullscreen?t.exitFullscreen():t.webkitExitFullscreen?t.webkitExitFullscreen():t.mozCancelFullScreen?t.mozCancelFullScreen():t.msExitFullscreen&&t.msExitFullscreen())},change:function(t){var i=this.options,n=this.pointers,r=n[Object.keys(n)[0]];if(r){var a=r.endX-r.startX,o=r.endY-r.startY;switch(this.action){case gt:(a!==0||o!==0)&&(this.pointerMoved=!0,this.move(a,o,t));break;case rt:this.zoom(Ti(n),!1,null,t);break;case Ne:{this.action="switched";var s=Math.abs(a);s>1&&s>Math.abs(o)&&(this.pointers={},a>1?this.prev(i.loop):a<-1&&this.next(i.loop));break}}S(n,function(c){c.startX=c.endX,c.startY=c.endY})}},isSwitchable:function(){var t=this.imageData,i=this.viewerData;return this.length>1&&t.x>=0&&t.y>=0&&t.width<=i.width&&t.height<=i.height}},Ii=X.Viewer,Ni=function(e){return function(){return e+=1,e}}(-1),it=function(){function e(t){var 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