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this.matchesAny(d.READIUM_AUDIOBOOK,d.READIUM_AUDIOBOOK_MANIFEST,d.CBZ,d.DIVINA,d.DIVINA_MANIFEST,d.EPUB,d.LCP_PROTECTED_AUDIOBOOK,d.LCP_PROTECTED_PDF,d.LPF,d.PDF,d.W3C_WPUB_MANIFEST,d.READIUM_WEBPUB,d.READIUM_WEBPUB_MANIFEST,d.ZAB)}static get AAC(){return d.parse({mediaType:"audio/aac",fileExtension:"aac"})}static get ACSM(){return d.parse({mediaType:"application/vnd.adobe.adept+xml",name:"Adobe Content Server Message",fileExtension:"acsm"})}static get AIFF(){return d.parse({mediaType:"audio/aiff",fileExtension:"aiff"})}static get AVI(){return d.parse({mediaType:"video/x-msvideo",fileExtension:"avi"})}static get BINARY(){return d.parse({mediaType:"application/octet-stream"})}static get BMP(){return d.parse({mediaType:"image/bmp",fileExtension:"bmp"})}static get CBZ(){return d.parse({mediaType:"application/vnd.comicbook+zip",name:"Comic Book Archive",fileExtension:"cbz"})}static get CSS(){return d.parse({mediaType:"text/css",fileExtension:"css"})}static get DIVINA(){return 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LCP_PROTECTED_AUDIOBOOK(){return d.parse({mediaType:"application/audiobook+lcp",name:"LCP Protected Audiobook",fileExtension:"lcpa"})}static get LCP_PROTECTED_PDF(){return d.parse({mediaType:"application/pdf+lcp",name:"LCP Protected PDF",fileExtension:"lcpdf"})}static get LCP_STATUS_DOCUMENT(){return d.parse({mediaType:"application/vnd.readium.license.status.v1.0+json"})}static get LPF(){return d.parse({mediaType:"application/lpf+zip",fileExtension:"lpf"})}static get MP3(){return d.parse({mediaType:"audio/mpeg",fileExtension:"mp3"})}static get MPEG(){return d.parse({mediaType:"video/mpeg",fileExtension:"mpeg"})}static get NCX(){return d.parse({mediaType:"application/x-dtbncx+xml",fileExtension:"ncx"})}static get OGG(){return d.parse({mediaType:"audio/ogg",fileExtension:"oga"})}static get OGV(){return d.parse({mediaType:"video/ogg",fileExtension:"ogv"})}static get OPDS1(){return d.parse({mediaType:"application/atom+xml;profile=opds-catalog"})}static get OPDS1_ENTRY(){return 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dd{-webkit-hyphens:inherit;-moz-hyphens:inherit;-ms-hyphens:inherit;-epub-hyphens:inherit;hyphens:inherit}:root[style*=readium-font-on][style*=--USER__fontFamily]{font-family:var(--USER__fontFamily)!important}:root[style*=readium-font-on][style*=--USER__fontFamily] body,:root[style*=readium-font-on][style*=--USER__fontFamily] p,:root[style*=readium-font-on][style*=--USER__fontFamily] li,:root[style*=readium-font-on][style*=--USER__fontFamily] div,:root[style*=readium-font-on][style*=--USER__fontFamily] dt,:root[style*=readium-font-on][style*=--USER__fontFamily] dd{font-family:inherit!important}:root[style*=readium-font-on][style*=--USER__fontFamily] i:not([lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] i:not([xml\\:lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] em:not([lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] em:not([xml\\:lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] cite:not([lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] cite:not([xml\\:lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] b:not([lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] b:not([xml\\:lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] strong:not([lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] strong:not([xml\\:lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] span:not([lang]),:root[style*=readium-font-on][style*=--USER__fontFamily] span:not([xml\\:lang]){font-family:inherit!important}:root[style*=readium-font-on][style*=AccessibleDfA]{font-family:AccessibleDfA,Verdana,Tahoma,Trebuchet MS,sans-serif!important;--RS__lineHeightCompensation:1.167}:root[style*=readium-font-on][style*="IA Writer Duospace"]{font-family:IA Writer Duospace,Menlo,DejaVu Sans Mono,Bitstream Vera Sans 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div{line-height:inherit}:root[style*=readium-advanced-on][style*=--USER__paraSpacing] p{margin-top:var(--USER__paraSpacing)!important;margin-bottom:var(--USER__paraSpacing)!important}:root[style*=readium-advanced-on][style*=--USER__paraIndent] p{text-indent:var(--USER__paraIndent)!important}:root[style*=readium-advanced-on][style*=--USER__paraIndent] p *,:root[style*=readium-advanced-on][style*=--USER__paraIndent] p:first-letter{text-indent:0!important}:root[style*=readium-advanced-on][style*=--USER__wordSpacing] h1,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] h2,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] h3,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] h4,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] h5,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] h6,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] p,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] li,:root[style*=readium-advanced-on][style*=--USER__wordSpacing] div{word-spacing:var(--USER__wordSpacing)}:root[style*=readium-advanced-on][style*=--USER__letterSpacing] h1,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] h2,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] h3,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] h4,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] h5,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] h6,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] p,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] li,:root[style*=readium-advanced-on][style*=--USER__letterSpacing] div{letter-spacing:var(--USER__letterSpacing);font-variant:none}:root[style*=readium-advanced-on]{--USER__typeScale:1.2}:root[style*=readium-advanced-on] p,:root[style*=readium-advanced-on] li,:root[style*=readium-advanced-on] div,:root[style*=readium-advanced-on] 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            1, e, e.currentTarget || e.target
        ]);
    };
    window.addEventListener("DOMContentLoaded", window._readium_eventBlocker, true);
    window.addEventListener("load", window._readium_eventBlocker, true);`),"text/javascript"))),oi=i=>DA(i,tA("JS-After",()=>k(mt(`
    if(window.onload) window.onload = new Proxy(window.onload, {
        apply: function(target, receiver, args) {
            if(!window._readium_blockEvents) {
                Reflect.apply(target, receiver, args);
                return;
            }
            _readium_blockedEvents.push([
                0, target, receiver, args
            ]);
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t.src=this.burl||"",t.alt=this.item.title||"",t.decoding="async",A.body.appendChild(t),this.finalizeDOM(A,this.burl,this.item.mediaType,!0)}hasExecutable(A){return!!A.querySelector("script")||!!A.querySelector("body[onload]:not(body[onload=''])")}hasStyle(A){return!!(A.querySelector("link[rel='stylesheet']")||A.querySelector("style")||A.querySelector("[style]:not([style=''])"))}finalizeDOM(A,t,e,n=!1){if(!A)return"";if(!n){const s=HA(A,tA("ReadiumCSS-before",()=>k(VA(ii),"text/css")));A.head.firstChild?A.head.firstChild.before(s):A.head.appendChild(s);const o=A.createElement("style");o.dataset.readium="true",o.innerHTML="audio[controls] { width: revert; height: revert; }",s.after(o),this.hasStyle(A)||s.after(HA(A,tA("ReadiumCSS-default",()=>k(VA(ni),"text/css")))),A.head.appendChild(HA(A,tA("ReadiumCSS-after",()=>k(VA(ei),"text/css"))))}if(A.body.querySelectorAll("img").forEach(s=>{s.setAttribute("fetchpriority","high")}),t!==void 0){const s=A.createElement("base");s.href=t,s.dataset.readium="true",A.head.firstChild.before(s)}const r=this.hasExecutable(A);return r&&A.head.firstChild.before(si(A)),A.head.firstChild.before(ri(A)),r&&A.head.appendChild(oi(A)),URL.createObjectURL(new Blob([new XMLSerializer().serializeToString(A)],{type:e.isHTML?e.string:"application/xhtml+xml"}))}}const ai=Math.pow(2,32),Et=()=>Math.round(Math.random()*ai).toString(36),vA=()=>`${Math.round(performance.now())}-${Et()}-${Et()}`,eA=1;class hi{constructor(A){this.destination=null,this.registrar=new Map,this.origin="",this.channelId="",this.receiver=this.receive.bind(this),this.preLog=[],this.wnd=A,A.addEventListener("message",this.receiver)}receive(A){if(A.source===null)throw Error("Event source is null");if(typeof A.data!="object")return;const t=A.data;if(!(!("_readium"in t)||!t._readium||t._readium<=0)){if(t.key==="_ping"){if(!this.destination){if(this.destination=A.source,this.origin=A.origin,this.channelId=t._channel,t._readium!==eA){t._readium>eA?this.send("error",`received comms version ${t._readium} higher than ${eA}`):this.send("error",`received comms version ${t._readium} lower than ${eA}`),this.destination=null,this.origin="",this.channelId="";return}this.send("_pong",void 0),this.preLog.forEach(e=>this.send("log",e)),this.preLog=[]}return}else if(this.channelId){if(t._channel!==this.channelId||A.origin!==this.origin)return}else return;this.handle(t)}}handle(A){const t=this.registrar.get(A.key);if(!t||t.length===0){A.strict&&this.send("_unhandled",A);return}t.forEach(e=>e.cb(A.data,n=>{this.send("_ack",n,A.id)}))}register(A,t,e){Array.isArray(A)||(A=[A]),A.forEach(n=>{const r=this.registrar.get(n);if(r&&r.length>=0){if(r.find(s=>s.module===t))throw new Error(`Trying to register another callback for combination of event ${n} and module ${t}`);r.push({cb:e,module:t}),this.registrar.set(n,r)}else this.registrar.set(n,[{cb:e,module:t}])})}unregister(A,t){Array.isArray(A)||(A=[A]),A.forEach(e=>{const n=this.registrar.get(e);!n||n.length===0||n.splice(n.findIndex(r=>r.module===t),1)})}unregisterAll(A){this.registrar.forEach((t,e)=>this.registrar.set(e,t.filter(n=>n.module!==A)))}log(...A){this.destination?this.send("log",A):this.preLog.push(A)}get ready(){return!!this.destination}destroy(){this.destination=null,this.channelId="",this.preLog=[],this.registrar.clear(),this.wnd.removeEventListener("message",this.receiver)}send(A,t,e=void 0,n=[]){if(!this.destination)throw Error("Attempted to send comms message before destination has been initialized");const r={_readium:eA,_channel:this.channelId,id:e??vA(),key:A,data:t};try{this.destination.postMessage(r,{targetOrigin:this.origin,transfer:n})}catch(s){if(n.length>0)throw s;this.destination.postMessage(r,this.origin,n)}}}class bA{constructor(A){this.algorithm=A.algorithm,this.compression=A.compression,this.originalLength=A.originalLength,this.profile=A.profile,this.scheme=A.scheme}static deserialize(A){if(A&&A.algorithm)return new bA({algorithm:A.algorithm,compression:A.compression,originalLength:A.originalLength,profile:A.profile,scheme:A.scheme})}serialize(){const A={algorithm:this.algorithm};return this.compression!==void 0&&(A.compression=this.compression),this.originalLength!==void 0&&(A.originalLength=this.originalLength),this.profile!==void 0&&(A.profile=this.profile),this.scheme!==void 0&&(A.scheme=this.scheme),A}}class y{constructor(A){this.otherProperties=A}static deserialize(A){if(A)return new y(A)}serialize(){return this.otherProperties}add(A){const t=Object.assign({},this.otherProperties);for(const e in A)t[e]=A[e];return new y(t)}}Object.defineProperty(y.prototype,"encryption",{get:function(){return bA.deserialize(this.otherProperties.encrypted)}}),y.prototype.getContains=function(){return new Set(this.otherProperties.contains||[])},y.prototype.getLayout=function(){return this.otherProperties.layout};class M{constructor(A){let t,e,n=A.mediaType.replace(/\s/g,"").split(";");const r=n[0].split("/");if(r.length===2){if(t=r[0].toLowerCase().trim(),e=r[1].toLowerCase().trim(),t.length===0||e.length===0)throw new Error("Invalid media type")}else throw new Error("Invalid media type");const s={};for(let g=1;g<n.length;g++){const u=n[g].split("=");if(u.length===2){const m=u[0].toLocaleLowerCase(),B=m==="charset"?u[1].toUpperCase():u[1];s[m]=B}}const o={},a=Object.keys(s);a.sort((g,u)=>g.localeCompare(u)),a.forEach(g=>o[g]=s[g]);let h="";for(const g in o){const u=o[g];h+=`;${g}=${u}`}const c=`${t}/${e}${h}`,l=o.encoding;this.string=c,this.type=t,this.subtype=e,this.parameters=o,this.encoding=l,this.name=A.name,this.fileExtension=A.fileExtension}static parse(A){return new M(A)}get structuredSyntaxSuffix(){const A=this.subtype.split("+");return A.length>1?`+${A[A.length-1]}`:void 0}get charset(){return this.parameters.charset}contains(A){const t=typeof A=="string"?M.parse({mediaType:A}):A;if(!((this.type==="*"||this.type===t.type)&&(this.subtype==="*"||this.subtype===t.subtype)))return!1;const e=new Set(Object.entries(this.parameters).map(([r,s])=>`${r}=${s}`)),n=new Set(Object.entries(t.parameters).map(([r,s])=>`${r}=${s}`));for(const r of Array.from(e.values()))if(!n.has(r))return!1;return!0}matches(A){const t=typeof A=="string"?M.parse({mediaType:A}):A;return this.contains(t)||t.contains(this)}matchesAny(...A){for(const t of A)if(this.matches(t))return!0;return!1}equals(A){return this.string===A.string}get isZIP(){return this.matchesAny(M.ZIP,M.LCP_PROTECTED_AUDIOBOOK,M.LCP_PROTECTED_PDF)||this.structuredSyntaxSuffix==="+zip"}get isJSON(){return this.matchesAny(M.JSON)||this.structuredSyntaxSuffix==="+json"}get isOPDS(){return this.matchesAny(M.OPDS1,M.OPDS1_ENTRY,M.OPDS2,M.OPDS2_PUBLICATION,M.OPDS_AUTHENTICATION)||this.structuredSyntaxSuffix==="+json"}get isHTML(){return this.matchesAny(M.HTML,M.XHTML)}get isBitmap(){return this.matchesAny(M.BMP,M.GIF,M.JPEG,M.PNG,M.TIFF,M.WEBP)}get isAudio(){return this.type==="audio"}get isVideo(){return this.type==="video"}get isRWPM(){return this.matchesAny(M.READIUM_AUDIOBOOK_MANIFEST,M.DIVINA_MANIFEST,M.READIUM_WEBPUB_MANIFEST)}get isPublication(){return this.matchesAny(M.READIUM_AUDIOBOOK,M.READIUM_AUDIOBOOK_MANIFEST,M.CBZ,M.DIVINA,M.DIVINA_MANIFEST,M.EPUB,M.LCP_PROTECTED_AUDIOBOOK,M.LCP_PROTECTED_PDF,M.LPF,M.PDF,M.W3C_WPUB_MANIFEST,M.READIUM_WEBPUB,M.READIUM_WEBPUB_MANIFEST,M.ZAB)}static get AAC(){return M.parse({mediaType:"audio/aac",fileExtension:"aac"})}static get ACSM(){return M.parse({mediaType:"application/vnd.adobe.adept+xml",name:"Adobe Content Server Message",fileExtension:"acsm"})}static get AIFF(){return M.parse({mediaType:"audio/aiff",fileExtension:"aiff"})}static get AVI(){return M.parse({mediaType:"video/x-msvideo",fileExtension:"avi"})}static get BINARY(){return M.parse({mediaType:"application/octet-stream"})}static get BMP(){return M.parse({mediaType:"image/bmp",fileExtension:"bmp"})}static get CBZ(){return M.parse({mediaType:"application/vnd.comicbook+zip",name:"Comic Book Archive",fileExtension:"cbz"})}static get CSS(){return M.parse({mediaType:"text/css",fileExtension:"css"})}static get DIVINA(){return M.parse({mediaType:"application/divina+zip",name:"Digital Visual Narratives",fileExtension:"divina"})}static get DIVINA_MANIFEST(){return M.parse({mediaType:"application/divina+json",name:"Digital Visual Narratives",fileExtension:"json"})}static get EPUB(){return M.parse({mediaType:"application/epub+zip",name:"EPUB",fileExtension:"epub"})}static get GIF(){return M.parse({mediaType:"image/gif",fileExtension:"gif"})}static get GZ(){return M.parse({mediaType:"application/gzip",fileExtension:"gz"})}static get HTML(){return M.parse({mediaType:"text/html",fileExtension:"html"})}static get JAVASCRIPT(){return M.parse({mediaType:"text/javascript",fileExtension:"js"})}static get JPEG(){return M.parse({mediaType:"image/jpeg",fileExtension:"jpeg"})}static get JSON(){return M.parse({mediaType:"application/json"})}static get LCP_LICENSE_DOCUMENT(){return M.parse({mediaType:"application/vnd.readium.lcp.license.v1.0+json",name:"LCP License",fileExtension:"lcpl"})}static get LCP_PROTECTED_AUDIOBOOK(){return M.parse({mediaType:"application/audiobook+lcp",name:"LCP Protected Audiobook",fileExtension:"lcpa"})}static get LCP_PROTECTED_PDF(){return M.parse({mediaType:"application/pdf+lcp",name:"LCP Protected PDF",fileExtension:"lcpdf"})}static get LCP_STATUS_DOCUMENT(){return M.parse({mediaType:"application/vnd.readium.license.status.v1.0+json"})}static get LPF(){return M.parse({mediaType:"application/lpf+zip",fileExtension:"lpf"})}static get MP3(){return M.parse({mediaType:"audio/mpeg",fileExtension:"mp3"})}static get MPEG(){return M.parse({mediaType:"video/mpeg",fileExtension:"mpeg"})}static get NCX(){return M.parse({mediaType:"application/x-dtbncx+xml",fileExtension:"ncx"})}static get OGG(){return M.parse({mediaType:"audio/ogg",fileExtension:"oga"})}static get OGV(){return M.parse({mediaType:"video/ogg",fileExtension:"ogv"})}static get OPDS1(){return M.parse({mediaType:"application/atom+xml;profile=opds-catalog"})}static get OPDS1_ENTRY(){return M.parse({mediaType:"application/atom+xml;type=entry;profile=opds-catalog"})}static get OPDS2(){return M.parse({mediaType:"application/opds+json"})}static get OPDS2_PUBLICATION(){return M.parse({mediaType:"application/opds-publication+json"})}static get OPDS_AUTHENTICATION(){return M.parse({mediaType:"application/opds-authentication+json"})}static get OPUS(){return M.parse({mediaType:"audio/opus",fileExtension:"opus"})}static get OTF(){return M.parse({mediaType:"font/otf",fileExtension:"otf"})}static get PDF(){return M.parse({mediaType:"application/pdf",name:"PDF",fileExtension:"pdf"})}static get PNG(){return M.parse({mediaType:"image/png",fileExtension:"png"})}static get READIUM_AUDIOBOOK(){return M.parse({mediaType:"application/audiobook+zip",name:"Readium Audiobook",fileExtension:"audiobook"})}static get READIUM_AUDIOBOOK_MANIFEST(){return M.parse({mediaType:"application/audiobook+json",name:"Readium Audiobook",fileExtension:"json"})}static get READIUM_CONTENT_DOCUMENT(){return M.parse({mediaType:"application/vnd.readium.content+json",name:"Readium Content Document",fileExtension:"json"})}static get READIUM_GUIDED_NAVIGATION_DOCUMENT(){return M.parse({mediaType:"application/guided-navigation+json",name:"Readium Guided Navigation Document",fileExtension:"json"})}static get READIUM_POSITION_LIST(){return M.parse({mediaType:"application/vnd.readium.position-list+json",name:"Readium Position List",fileExtension:"json"})}static get READIUM_WEBPUB(){return M.parse({mediaType:"application/webpub+zip",name:"Readium Web Publication",fileExtension:"webpub"})}static get READIUM_WEBPUB_MANIFEST(){return M.parse({mediaType:"application/webpub+json",name:"Readium Web Publication",fileExtension:"json"})}static get SMIL(){return M.parse({mediaType:"application/smil+xml",fileExtension:"smil"})}static get SVG(){return M.parse({mediaType:"image/svg+xml",fileExtension:"svg"})}static get TEXT(){return M.parse({mediaType:"text/plain",fileExtension:"txt"})}static get TIFF(){return M.parse({mediaType:"image/tiff",fileExtension:"tiff"})}static get TTF(){return M.parse({mediaType:"font/ttf",fileExtension:"ttf"})}static get W3C_WPUB_MANIFEST(){return M.parse({mediaType:"application/x.readium.w3c.wpub+json",name:"Web Publication",fileExtension:"json"})}static get WAV(){return M.parse({mediaType:"audio/wav",fileExtension:"wav"})}static get WEBM_AUDIO(){return M.parse({mediaType:"audio/webm",fileExtension:"webm"})}static get WEBM_VIDEO(){return M.parse({mediaType:"video/webm",fileExtension:"webm"})}static get WEBP(){return M.parse({mediaType:"image/webp",fileExtension:"webp"})}static get WOFF(){return M.parse({mediaType:"font/woff",fileExtension:"woff"})}static get WOFF2(){return M.parse({mediaType:"font/woff2",fileExtension:"woff2"})}static get XHTML(){return M.parse({mediaType:"application/xhtml+xml",fileExtension:"xhtml"})}static get XML(){return M.parse({mediaType:"application/xml",fileExtension:"xml"})}static get ZAB(){return M.parse({mediaType:"application/x.readium.zab+zip",name:"Zipped Audio Book",fileExtension:"zab"})}static get ZIP(){return M.parse({mediaType:"application/zip",fileExtension:"zip"})}}class ft{constructor(A){this.uri=A,this.parameters=this.getParameters(A)}getParameters(A){const t=/\{\??([^}]+)\}/g,e=A.match(t);return e?new Set(e.join(",").replace(t,"$1").split(",").map(n=>n.trim())):new Set}expand(A){const t=n=>n.split(",").map(r=>{const s=A[r];return s?encodeURIComponent(s):""}).join(","),e=n=>"?"+n.split(",").map(r=>{const s=r.split("=")[0],o=A[s];return o?`${s}=${encodeURIComponent(o)}`:""}).join("&");return this.uri.replace(/\{(\??)([^}]+)\}/g,(...n)=>n[1]?e(n[2]):t(n[2]))}}function ci(i){return i&&i instanceof Array?i:void 0}function It(i){return i&&typeof i=="string"?[i]:ci(i)}function pt(i){return typeof i=="string"?new Date(i):void 0}function EA(i){return isNaN(i)?void 0:i}function x(i){return EA(i)!==void 0&&Math.sign(i)>=0?i:void 0}function li(i){const A=new Array;return i.forEach(t=>A.push(t)),A}class R{constructor(A){this.fragments=A.fragments?A.fragments:new Array,this.progression=A.progression,this.totalProgression=A.totalProgression,this.position=A.position,this.otherLocations=A.otherLocations}static deserialize(A){if(!A)return;const t=EA(A.progression),e=EA(A.totalProgression),n=EA(A.position),r=new Map,s=new Set(["fragment","fragments","progression","totalProgression","position"]);return Object.entries(A).forEach(([o,a])=>{s.has(o)||r.set(o,a)}),new R({fragments:It(A.fragments||A.fragment),progression:t!==void 0&&t>=0&&t<=1?t:void 0,totalProgression:e!==void 0&&e>=0&&e<=1?e:void 0,position:n!==void 0&&n>0?n:void 0,otherLocations:r.size===0?void 0:r})}serialize(){const A={};return this.fragments&&(A.fragments=this.fragments),this.progression!==void 0&&(A.progression=this.progression),this.totalProgression!==void 0&&(A.totalProgression=this.totalProgression),this.position!==void 0&&(A.position=this.position),this.otherLocations&&this.otherLocations.forEach((t,e)=>A[e]=t),A}}class iA{constructor(A){this.after=A.after,this.before=A.before,this.highlight=A.highlight}static deserialize(A){if(A)return new iA({after:A.after,before:A.before,highlight:A.highlight})}serialize(){const A={};return this.after!==void 0&&(A.after=this.after),this.before!==void 0&&(A.before=this.before),this.highlight!==void 0&&(A.highlight=this.highlight),A}}class W{constructor(A){this.href=A.href,this.type=A.type,this.title=A.title,this.locations=A.locations?A.locations:new R({}),this.text=A.text}static deserialize(A){if(A&&A.href&&A.type)return new W({href:A.href,type:A.type,title:A.title,locations:R.deserialize(A.locations),text:iA.deserialize(A.text)})}serialize(){const A={href:this.href,type:this.type};return this.title!==void 0&&(A.title=this.title),this.locations&&(A.locations=this.locations.serialize()),this.text&&(A.text=this.text.serialize()),A}copyWithLocations(A){return new W({href:this.href,type:this.type,title:this.title,text:this.text,locations:new R({...this.locations,...A})})}}class nA{constructor(A){this.href=A.href,this.templated=A.templated,this.type=A.type,this.title=A.title,this.rels=A.rels,this.properties=A.properties,this.height=A.height,this.width=A.width,this.duration=A.duration,this.bitrate=A.bitrate,this.languages=A.languages,this.alternates=A.alternates,this.children=A.children}static deserialize(A){if(A&&A.href&&typeof A.href=="string")return new nA({href:A.href,templated:A.templated,type:A.type,title:A.title,rels:A.rel?A.rel instanceof Array?new Set(A.rel):new Set([A.rel]):void 0,properties:y.deserialize(A.properties),height:x(A.height),width:x(A.width),duration:x(A.duration),bitrate:x(A.bitrate),languages:It(A.language),alternates:fA.deserialize(A.alternate),children:fA.deserialize(A.children)})}serialize(){const A={href:this.href};return this.templated!==void 0&&(A.templated=this.templated),this.type!==void 0&&(A.type=this.type),this.title!==void 0&&(A.title=this.title),this.rels&&(A.rel=li(this.rels)),this.properties&&(A.properties=this.properties.serialize()),this.height!==void 0&&(A.height=this.height),this.width!==void 0&&(A.width=this.width),this.duration!==void 0&&(A.duration=this.duration),this.bitrate!==void 0&&(A.bitrate=this.bitrate),this.languages&&(A.language=this.languages),this.alternates&&(A.alternate=this.alternates.serialize()),this.children&&(A.children=this.children.serialize()),A}get mediaType(){return this.type!==void 0?M.parse({mediaType:this.type}):M.BINARY}toURL(A){const t=this.href.replace(/^(\/)/,"");if(t.length===0)return;let e=A||"/";return e.startsWith("/")&&(e="file://"+e),new URL(t,e).href.replace(/^(file:\/\/)/,"")}get templateParameters(){return this.templated?new ft(this.href).parameters:new Set}expandTemplate(A){return new nA({href:new ft(this.href).expand(A),templated:!1})}addProperties(A){var t;const e=nA.deserialize(this.serialize());return e.properties=e.properties?(t=e.properties)==null?void 0:t.add(A):new y(A),e}get locator(){let A=this.href.split("#");return new W({href:A.length>0&&A[0]!==void 0?A[0]:this.href,type:this.type??"",title:this.title,locations:new R({fragments:A.length>1&&A[1]!==void 0?[A[1]]:[]})})}}class fA{constructor(A){this.items=A}static deserialize(A){if(A&&A instanceof Array)return new fA(A.map(t=>nA.deserialize(t)).filter(t=>t!==void 0))}serialize(){return this.items.map(A=>A.serialize())}findWithRel(A){const t=e=>e.rels&&e.rels.has(A);return this.items.find(t)}filterByRel(A){const t=e=>e.rels&&e.rels.has(A);return this.items.filter(t)}findWithHref(A){const t=e=>e.href===A;return this.items.find(t)}findIndexWithHref(A){const t=e=>e.href===A;return this.items.findIndex(t)}findWithMediaType(A){const t=e=>e.mediaType.matches(A);return this.items.find(t)}filterByMediaType(A){const t=e=>e.mediaType.matches(A);return this.items.filter(t)}filterByMediaTypes(A){const t=e=>{for(const n of A)if(e.mediaType.matches(n))return!0;return!1};return this.items.filter(t)}everyIsAudio(){const A=t=>t.mediaType.isAudio;return this.items.length>0&&this.items.every(A)}everyIsBitmap(){const A=t=>t.mediaType.isBitmap;return this.items.length>0&&this.items.every(A)}everyIsHTML(){const A=t=>t.mediaType.isHTML;return this.items.length>0&&this.items.every(A)}everyIsVideo(){const A=t=>t.mediaType.isVideo;return this.items.length>0&&this.items.every(A)}everyMatchesMediaType(A){return Array.isArray(A)?this.items.length>0&&this.items.every(t=>{for(const e of A)return t.mediaType.matches(e);return!1}):this.items.length>0&&this.items.every(t=>t.mediaType.matches(A))}filterLinksHasType(){return this.items.filter(A=>A.type)}}class IA{constructor(A){this.cssSelector=A.cssSelector,this.textNodeIndex=A.textNodeIndex,this.charOffset=A.charOffset}static deserialize(A){if(!(A&&A.cssSelector))return;let t=x(A.textNodeIndex);if(t===void 0)return;let e=x(A.charOffset);return e===void 0&&(e=x(A.offset)),new IA({cssSelector:A.cssSelector,textNodeIndex:t,charOffset:e})}serialize(){const A={cssSelector:this.cssSelector,textNodeIndex:this.textNodeIndex};return this.charOffset!==void 0&&(A.charOffset=this.charOffset),A}}class JA{constructor(A){this.start=A.start,this.end=A.end}static deserialize(A){if(!A)return;let t=IA.deserialize(A.start);if(t)return new JA({start:t,end:IA.deserialize(A.end)})}serialize(){const A={start:this.start.serialize()};return this.end&&(A.end=this.end.serialize()),A}}R.prototype.getCssSelector=function(){var i;return(i=this.otherLocations)==null?void 0:i.get("cssSelector")},R.prototype.getPartialCfi=function(){var i;return(i=this.otherLocations)==null?void 0:i.get("partialCfi")},R.prototype.getDomRange=function(){var i;return JA.deserialize((i=this.otherLocations)==null?void 0:i.get("domRange"))},R.prototype.fragmentParameters=function(){return new Map(this.fragments.map(i=>i.startsWith("#")?i.slice(1):i).join("&").split("&").filter(i=>!i.startsWith("#")).map(i=>i.split("=")).filter(i=>i.length===2).map(i=>[i[0].trim().toLowerCase(),i[1].trim()]))},R.prototype.htmlId=function(){if(!this.fragments.length)return;let i=this.fragments.find(A=>A.length&&!A.includes("="));if(!i){const A=this.fragmentParameters();A.has("id")?i=A.get("id"):A.has("name")&&(i=A.get("name"))}return i!=null&&i.startsWith("#")?i.slice(1):i},R.prototype.page=function(){const i=parseInt(this.fragmentParameters().get("page"));if(!isNaN(i)&&i>=0)return i},R.prototype.time=function(){const i=parseInt(this.fragmentParameters().get("t"));if(!isNaN(i))return i},R.prototype.space=function(){const i=this.fragmentParameters();if(!i.has("xywh"))return;const A=i.get("xywh").split(",").map(t=>parseInt(t));if(A.length===4&&!A.some(isNaN))return A};class PA{constructor(A){this.currency=A.currency,this.value=A.value}static deserialize(A){if(!A)return;let t=A.currency;if(!(t&&typeof t=="string"&&t.length>0))return;let e=x(A.value);if(e!==void 0)return new PA({currency:t,value:e})}serialize(){return{currency:this.currency,value:this.value}}}class lA{constructor(A){this.type=A.type,this.children=A.children}static deserialize(A){if(A&&A.type)return new lA({type:A.type,children:lA.deserializeArray(A.children)})}static deserializeArray(A){if(A instanceof Array)return A.map(t=>lA.deserialize(t)).filter(t=>t!==void 0)}serialize(){const A={type:this.type};return this.children&&(A.children=this.children.map(t=>t.serialize())),A}}class kA{constructor(A){this.total=A.total,this.position=A.position}static deserialize(A){if(A)return new kA({total:x(A.total),position:x(A.position)})}serialize(){const A={};return this.total!==void 0&&(A.total=this.total),this.position!==void 0&&(A.position=this.position),A}}class WA{constructor(A){this.total=A.total,this.available=A.available}static deserialize(A){if(A)return new WA({total:x(A.total),available:x(A.available)})}serialize(){const A={};return this.total!==void 0&&(A.total=this.total),this.available!==void 0&&(A.available=this.available),A}}class LA{constructor(A){this.state=A.state,this.since=A.since,this.until=A.until}static deserialize(A){if(A&&A.state)return new LA({state:A.state,since:pt(A.since),until:pt(A.until)})}serialize(){const A={state:this.state};return this.since!==void 0&&(A.since=this.since.toISOString()),this.until!==void 0&&(A.until=this.until.toISOString()),A}}y.prototype.getNumberOfItems=function(){return x(this.otherProperties.numberOfItems)},y.prototype.getPrice=function(){return PA.deserialize(this.otherProperties.price)},y.prototype.getIndirectAcquisitions=function(){const i=this.otherProperties.indirectAcquisition;if(i&&i instanceof Array)return i.map(A=>lA.deserialize(A)).filter(A=>A!==void 0)},y.prototype.getHolds=function(){return kA.deserialize(this.otherProperties.holds)},y.prototype.getCopies=function(){return WA.deserialize(this.otherProperties.copies)},y.prototype.getAvailability=function(){return LA.deserialize(this.otherProperties.availability)},y.prototype.getAuthenticate=function(){return nA.deserialize(this.otherProperties.authenticate)},y.prototype.getClipped=function(){return this.otherProperties.clipped},y.prototype.getFit=function(){return this.otherProperties.fit},y.prototype.getOrientation=function(){return this.otherProperties.orientation},y.prototype.getOverflow=function(){return this.otherProperties.overflow},y.prototype.getPage=function(){return 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g=0;g<256;g++)h.push(o);for(let g=0;g<A.length;g+=1){const u=A.charCodeAt(g);if(a.has(u))continue;const m=new Uint32Array(r+1);a.set(u,m),u<h.length&&(h[u]=m);for(let B=0;B<=r;B+=1){m[B]=0;for(let f=0;f<n;f+=1){const E=B*n+f;E>=A.length||A.charCodeAt(E)===u&&(m[B]|=1<<f)}}}let c=Math.max(0,Math.ceil(t/n)-1);const l=new Uint32Array(r+1);for(let g=0;g<=c;g+=1)l[g]=(g+1)*n;l[r]=A.length;for(let g=0;g<=c;g+=1)s.P[g]=-1,s.M[g]=0;for(let g=0;g<i.length;g+=1){const u=i.charCodeAt(g);let m;u<h.length?m=h[u]:(m=a.get(u),typeof m>"u"&&(m=o));let B=0;for(let f=0;f<=c;f+=1)B=Ft(s,m,f,B),l[f]+=B;if(l[c]-B<=t&&c<r&&(m[c+1]&1||B<0)){c+=1,s.P[c]=-1,s.M[c]=0;let f;if(c===r){const E=A.length%n;f=E===0?n:E}else f=n;l[c]=l[c-1]+f-B+Ft(s,m,c,B)}else for(;c>0&&l[c]>=t+n;)c-=1;c===r&&l[c]<=t&&(l[c]<t&&e.splice(0,e.length),e.push({start:-1,end:g+1,errors:l[c]}),t=l[c])}return e}function di(i,A,t){const e=Ut(i,A,t);return gi(i,A,e)}function yt(i,A,t){let e=0;const 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t=i.commonAncestorContainer.ownerDocument.createNodeIterator(i.commonAncestorContainer,NodeFilter.SHOW_TEXT),e=A===1?i.startContainer:i.endContainer,n=A===1?i.endContainer:i.startContainer;let r=t.nextNode();for(;r&&r!==e;)r=t.nextNode();A===2&&(r=t.previousNode());let s=-1;const o=()=>{if(r=A===1?t.nextNode():t.previousNode(),r){const a=r.textContent,h=A===1?0:a.length;s=XA(a,h,A)}};for(;r&&s===-1&&r!==n;)o();if(r&&s>=0)return{node:r,offset:s};throw new RangeError("No text nodes with non-whitespace text found in range")}function ui(i){if(!i.toString().trim().length)throw new RangeError("Range contains no non-whitespace text");if(i.startContainer.nodeType!==Node.TEXT_NODE)throw new RangeError("Range startContainer is not a text node");if(i.endContainer.nodeType!==Node.TEXT_NODE)throw new RangeError("Range endContainer is not a text node");const A=i.cloneRange();let t=!1,e=!1;const n={start:XA(i.startContainer.textContent,i.startOffset,1),end:XA(i.endContainer.textContent,i.endOffset,2)};if(n.start>=0&&(A.setStart(i.startContainer,n.start),t=!0),n.end>0&&(A.setEnd(i.endContainer,n.end),e=!0),t&&e)return A;if(!t){const{node:r,offset:s}=Rt(A,1);r&&s>=0&&A.setStart(r,s)}if(!e){const{node:r,offset:s}=Rt(A,2);r&&s>0&&A.setEnd(r,s)}return A}function Yt(i){var A;switch(i.nodeType){case Node.ELEMENT_NODE:case Node.TEXT_NODE:return((A=i.textContent)==null?void 0:A.length)??0;default:return 0}}function Ct(i){let A=i.previousSibling,t=0;for(;A;)t+=Yt(A),A=A.previousSibling;return t}function zt(i,...A){let t=A.shift();const e=i.ownerDocument.createNodeIterator(i,NodeFilter.SHOW_TEXT),n=[];let r=e.nextNode(),s,o=0;for(;t!==void 0&&r;)s=r,o+s.data.length>t?(n.push({node:s,offset:t-o}),t=A.shift()):(r=e.nextNode(),o+=s.data.length);for(;t!==void 0&&s&&o===t;)n.push({node:s,offset:s.data.length}),t=A.shift();if(t!==void 0)throw new RangeError("Offset exceeds text length");return n}class G{constructor(A,t){if(t<0)throw new Error("Offset is invalid");this.element=A,this.offset=t}relativeTo(A){if(!A.contains(this.element))throw new Error("Parent is not an ancestor of current element");let t=this.element,e=this.offset;for(;t!==A;)e+=Ct(t),t=t.parentElement;return new G(t,e)}resolve(A={}){try{return zt(this.element,this.offset)[0]}catch(t){if(this.offset===0&&A.direction!==void 0){const e=document.createTreeWalker(this.element.getRootNode(),NodeFilter.SHOW_TEXT);e.currentNode=this.element;const n=A.direction===1,r=n?e.nextNode():e.previousNode();if(!r)throw t;return{node:r,offset:n?0:r.data.length}}else throw t}}static fromCharOffset(A,t){switch(A.nodeType){case Node.TEXT_NODE:return G.fromPoint(A,t);case Node.ELEMENT_NODE:return new G(A,t);default:throw new Error("Node is not an element or text node")}}static fromPoint(A,t){switch(A.nodeType){case Node.TEXT_NODE:{if(t<0||t>A.data.length)throw new Error("Text node offset is out of range");if(!A.parentElement)throw 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ui(L.fromRange(A).toRange())}}class wA{constructor(A,t,e){this.root=A,this.start=t,this.end=e}static fromRange(A,t){const e=L.fromRange(t).relativeTo(A);return new wA(A,e.start.offset,e.end.offset)}static fromSelector(A,t){return new wA(A,t.start,t.end)}toSelector(){return{type:"TextPositionSelector",start:this.start,end:this.end}}toRange(){return L.fromOffsets(this.root,this.start,this.end).toRange()}}class FA{constructor(A,t,e={}){this.root=A,this.exact=t,this.context=e}static fromRange(A,t){const e=A.textContent,n=L.fromRange(t).relativeTo(A),r=n.start.offset,s=n.end.offset,o=32;return new FA(A,e.slice(r,s),{prefix:e.slice(Math.max(0,r-o),r),suffix:e.slice(s,Math.min(e.length,s+o))})}static fromSelector(A,t){const{prefix:e,suffix:n}=t;return new FA(A,t.exact,{prefix:e,suffix:n})}toSelector(){return{type:"TextQuoteSelector",exact:this.exact,prefix:this.context.prefix,suffix:this.context.suffix}}toRange(A={}){return this.toPositionAnchor(A).toRange()}toPositionAnchor(A={}){const 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e=this.wnd.scrollX>0?this.wnd.scrollX:this.alreadyScrollLeft,n=this.doc(),r=this.dragOffset(),s=ie(this.wnd),o=Math.min(Math.max(0,e),this.cachedScrollWidth),a=q(this.wnd)?-1:1,h=a*(this.wnd.innerWidth/3)*(a*r>0?2:1),c=this.snapOffset(o+h);if(A&&c!==this.scrollOffset()){this.snappingCancelled=!1;const l=(B,f,E,p)=>E>p?f:B+(f-B)*Xi(E/p),g=_i*s;let u;const m=B=>{if(this.snappingCancelled)return;u||(u=B);const f=B-u,E=l(this.overscroll,0,f,g),p=l(e,c,f,g);n.scrollLeft=p,this.overscroll!==0&&(n.style.transform=`translate3d(${-E}px, 0px, 0px)`),f<g?this.wnd.requestAnimationFrame(m):(this.clearTouches(),n.style.removeProperty("transform"),n.scrollLeft=c,t||this.reportProgress())};this.wnd.requestAnimationFrame(m)}else n.style.removeProperty("transform"),this.wnd.requestAnimationFrame(()=>{n.scrollLeft=c,this.clearTouches(),t||this.reportProgress()})}dragOffset(){return(this.startingX??0)-(this.endingX??0)}clearTouches(){this.startingX=void 0,this.endingX=void 0,this.overscroll=0}onTouchStart(A){switch(A.stopPropagation(),this.takeOverSnap(),A.touches.length){case 1:break;case 2:this.onTouchEnd(A);return;default:{this.onTouchEnd(A),this.comms.send("tap_more",A.touches.length);return}}this.startingX=A.touches[0].clientX,this.alreadyScrollLeft=this.doc().scrollLeft,this.touchState=1}onTouchEnd(A){if(this.touchState===2){const t=this.dragOffset(),e=this.scrollOffset();this.cachedScrollWidth<=this.wnd.innerWidth?(this.reportProgress(),t>5&&this.comms.send("no_more",void 0),t<-5&&this.comms.send("no_less",void 0)):e<5&&t<5?(this.alreadyScrollLeft=0,this.comms.send("no_less",void 0)):this.cachedScrollWidth-e-this.wnd.innerWidth<5&&t>5&&(this.alreadyScrollLeft=this.cachedScrollWidth,this.comms.send("no_more",void 0)),this.snapCurrentOffset(!0),this.comms.send("swipe",t)}this.touchState=0}onWidthChange(){this.cachedScrollWidth=this.doc().scrollWidth,this.comms.ready&&this.snapCurrentOffset()}onTouchMove(A){if(this.touchState===0)return;this.touchState===1&&(this.touchState=2,N(this.wnd)),this.endingX=A.touches[0].clientX;const t=this.dragOffset(),e=this.alreadyScrollLeft+t;e<0?(this.overscroll=e,this.doc().style.transform=`translate3d(${-this.overscroll}px, 0px, 0px)`):e+this.wnd.innerWidth>this.cachedScrollWidth?(this.overscroll=e,this.doc().style.transform=`translate3d(${-e}px, 0px, 0px)`):(this.overscroll=0,this.doc().style.removeProperty("transform"),this.doc().scrollLeft=this.alreadyScrollLeft+t)}mount(A,t){if(this.wnd=A,this.comms=t,!super.mount(A,t))return!1;A.navigator.epubReadingSystem.layoutStyle="paginated";const e=A.document.createElement("style");e.dataset.readium="true",e.id=oe,e.textContent=`
        @keyframes readium-bounce-l-animation {
            0%, 100% {transform: translate3d(0, 0, 0);}
            50% {transform: translate3d(-50px, 0, 0);}
        }

        @keyframes readium-bounce-r-animation {
            0%, 100% {transform: translate3d(0, 0, 0);}
            50% {transform: translate3d(50px, 0, 0);}
        }

        .readium-bounce-l {
            animation: readium-bounce-l-animation 150ms ease-out 1;
        }

        .readium-bounce-r {
            animation: readium-bounce-r-animation 150ms ease-out 1;
        }

        html {
            overflow: hidden;
        }

        body {
            -ms-overflow-style: none; /* for Internet Explorer, Edge */
        }

        * {
            scrollbar-width: none; /* for Firefox */
        }
        
        body::-webkit-scrollbar {
            display: none; /* for Chrome, Safari, and Opera */
        }
        `,A.document.head.appendChild(e);const n=A.ResizeObserver||Kt;this.resizeObserver=new n(()=>A.requestAnimationFrame(()=>{A&&Oi(A)})),this.resizeObserver.observe(A.document.body),this.mutationObserver=new MutationObserver(()=>{this.wnd.requestAnimationFrame(()=>this.cachedScrollWidth=this.doc().scrollWidth)}),A.frameElement&&this.mutationObserver.observe(A.frameElement,{attributes:!0,attributeFilter:["style"]}),this.mutationObserver.observe(A.document,{attributes:!0,attributeFilter:["style"]});const r=s=>{const o=this.doc().scrollLeft;return this.doc().scrollLeft=this.snapOffset(s),o!==this.doc().scrollLeft};return A.addEventListener("orientationchange",this.onWidthChanger),A.addEventListener("resize",this.onWidthChanger),A.requestAnimationFrame(()=>this.cachedScrollWidth=this.doc().scrollWidth),t.register("go_progression",j.moduleName,(s,o)=>{const a=s;if(a<0||a>1){t.send("error",{message:"go_progression must be given a position from 0.0 to 1.0"}),o(!1);return}this.wnd.requestAnimationFrame(()=>{this.cachedScrollWidth=this.doc().scrollWidth;const h=this.cachedScrollWidth,c=q(A)?-1:1,l=h*a*c;this.doc().scrollLeft=this.snapOffset(l),this.reportProgress(),N(this.wnd),o(!0)})}),t.register("go_id",j.moduleName,(s,o)=>{const a=A.document.getElementById(s);if(!a){o(!1);return}this.wnd.requestAnimationFrame(()=>{this.doc().scrollLeft=this.snapOffset(a.getBoundingClientRect().left+A.scrollX),this.reportProgress(),N(this.wnd),o(!0)})}),t.register("go_text",j.moduleName,(s,o)=>{let a;Array.isArray(s)&&(s.length>1&&(a=s[1]),s=s[0]);const h=iA.deserialize(s),c=ZA(this.wnd.document,new W({href:A.location.href,type:"text/html",text:h,locations:a?new R({otherLocations:new Map([["cssSelector",a]])}):void 0}));if(!c){o(!1);return}this.wnd.requestAnimationFrame(()=>{this.doc().scrollLeft=this.snapOffset(c.getBoundingClientRect().left+A.scrollX),this.reportProgress(),N(this.wnd),o(!0)})}),t.register("go_end",j.moduleName,(s,o)=>{const a=q(A)?-1:1;this.wnd.requestAnimationFrame(()=>{this.cachedScrollWidth=this.doc().scrollWidth;const h=this.cachedScrollWidth*a;if(this.doc().scrollLeft===h)return o(!1);this.doc().scrollLeft=this.snapOffset(h),this.reportProgress(),N(this.wnd),o(!0)})}),t.register("go_start",j.moduleName,(s,o)=>{this.wnd.requestAnimationFrame(()=>{if(this.doc().scrollLeft===0)return o(!1);this.doc().scrollLeft=0,this.reportProgress(),N(this.wnd),o(!0)})}),t.register("go_prev",j.moduleName,(s,o)=>{this.wnd.requestAnimationFrame(()=>{const a=A.scrollX-A.innerWidth,h=q(A)?-(this.cachedScrollWidth-A.innerWidth):0,c=r(Math.max(a,h));c&&(this.reportProgress(),N(this.wnd)),o(c)})}),t.register("go_next",j.moduleName,(s,o)=>{this.wnd.requestAnimationFrame(()=>{const a=A.scrollX+A.innerWidth,h=q(A)?0:this.cachedScrollWidth-A.innerWidth,c=r(Math.min(a,h));c&&(this.reportProgress(),N(this.wnd)),o(c)})}),t.register("unfocus",j.moduleName,(s,o)=>{this.snappingCancelled=!0,N(this.wnd),o(!0)}),t.register("shake",j.moduleName,(s,o)=>{this.shake(),o(!0)}),t.register("focus",j.moduleName,(s,o)=>{this.wnd.requestAnimationFrame(()=>{this.cachedScrollWidth=this.doc().scrollWidth,this.snapCurrentOffset(!1,!0),this.reportProgress(),o(!0)})}),t.register("first_visible_locator",j.moduleName,(s,o)=>{const a=re(A,!1);this.comms.send("first_visible_locator",a.serialize()),o(!0)}),A.addEventListener("touchstart",this.onTouchStarter,{passive:!0}),A.addEventListener("touchend",this.onTouchEnder,{passive:!0}),A.addEventListener("touchmove",this.onTouchMover,{passive:!0}),A.document.addEventListener("touchstart",()=>{}),t.log("ColumnSnapper Mounted"),!0}unmount(A,t){var e;return this.snappingCancelled=!0,t.unregisterAll(j.moduleName),this.resizeObserver.disconnect(),this.mutationObserver.disconnect(),A.removeEventListener("touchstart",this.onTouchStarter),A.removeEventListener("touchend",this.onTouchEnder),A.removeEventListener("touchmove",this.onTouchMover),A.removeEventListener("orientationchange",this.onWidthChanger),A.removeEventListener("resize",this.onWidthChanger),(e=A.document.getElementById(oe))==null||e.remove(),t.log("ColumnSnapper Unmounted"),super.unmount(A,t)}};ae.moduleName="column_snapper";let $i=ae;const CA={top:"js-iframe-reader-top-anchor",bottom:"js-iframe-reader-bottom-anchor"};class An extends HTMLElement{connectedCallback(){this.setAttribute("aria-hidden","true"),this.style.setProperty("display","block","important"),this.style.setProperty("padding","0","important"),this.style.setProperty("margin","0","important"),this.style.setProperty("visibility","hidden","important")}}function tn(i){const A=i.getElementsByTagName("body")[0],t=document.createElement("anchor-observer"),e=document.createElement("anchor-observer");t.dataset.readium="true",e.dataset.readium="true",t==null||t.setAttribute("id",CA.top),t==null||t.style.setProperty("height","115px","important"),e==null||e.setAttribute("id",CA.bottom),e==null||e.style.setProperty("height","80px","important"),A==null||A.insertBefore(t,A.firstChild),A==null||A.appendChild(e)}function en(i){var A,t;const e=i.getElementsByTagName("body")[0],n=e==null?void 0:e.querySelector(`#${CA.top}`),r=e==null?void 0:e.querySelector(`#${CA.bottom}`);n&&((A=n.parentElement)==null||A.removeChild(n)),r&&((t=r.parentElement)==null||t.removeChild(r))}const he="readium-scroll-snapper-style",ce=class H extends ee{constructor(){super(...arguments),this.createAnchorElements=()=>{tn(this.doc())},this.removeAnchorElements=()=>{en(this.doc())},this.createCustomElement=()=>{customElements.get("anchor-observer")||customElements.define("anchor-observer",An)}}doc(){return this.wnd.document.scrollingElement}reportProgress(A){this.comms.send("progress",A)}mount(A,t){this.wnd=A,this.comms=t,A.navigator.epubReadingSystem.layoutStyle="scrolling";const e=A.document.createElement("style");return e.dataset.readium="true",e.id=he,e.textContent=`
        * {
            scrollbar-width: none; /* for Firefox */
        }
        
        body::-webkit-scrollbar {
            display: none; /* for Chrome, Safari, and Opera */
        }
        `,A.document.head.appendChild(e),t.register("go_progression",H.moduleName,(n,r)=>{const s=n;if(s<0||s>1){t.send("error",{message:"go_progression must be given a position from 0.0 to 1.0"}),r(!1);return}this.wnd.requestAnimationFrame(()=>{this.doc().scrollTop=this.doc().offsetHeight*s,this.reportProgress({progress:s,reference:this.wnd.innerHeight/this.doc().scrollHeight}),N(this.wnd),r(!0)})}),t.register("go_id",H.moduleName,(n,r)=>{const s=A.document.getElementById(n);if(!s){r(!1);return}this.wnd.requestAnimationFrame(()=>{this.doc().scrollTop=s.getBoundingClientRect().top+A.scrollY-A.innerHeight/2;const o=this.doc().scrollTop/this.doc().offsetHeight;this.reportProgress({progress:o,reference:this.wnd.innerHeight/this.doc().scrollHeight}),N(this.wnd),r(!0)})}),t.register("go_text",H.moduleName,(n,r)=>{let s;Array.isArray(n)&&(n.length>1&&(s=n[1]),n=n[0]);const o=iA.deserialize(n),a=ZA(this.wnd.document,new W({href:A.location.href,type:"text/html",text:o,locations:s?new R({otherLocations:new Map([["cssSelector",s]])}):void 0}));if(!a){r(!1);return}this.wnd.requestAnimationFrame(()=>{this.doc().scrollTop=a.getBoundingClientRect().top+A.scrollY-A.innerHeight/2;const h=this.doc().scrollTop/this.doc().offsetHeight;this.reportProgress({progress:h,reference:this.wnd.innerHeight/this.doc().scrollHeight}),N(this.wnd),r(!0)})}),t.register("go_start",H.moduleName,(n,r)=>{if(this.doc().scrollTop===0)return r(!1);this.doc().scrollTop=0,this.reportProgress({progress:0,reference:this.wnd.innerHeight/this.doc().scrollHeight}),r(!0)}),t.register("go_end",H.moduleName,(n,r)=>{if(this.doc().scrollTop===0)return r(!1);this.doc().scrollTop=0,this.reportProgress({progress:0,reference:this.wnd.innerHeight/this.doc().scrollHeight}),r(!0)}),t.register("unfocus",H.moduleName,(n,r)=>{N(this.wnd),r(!0)}),t.register(["go_next","go_prev"],H.moduleName,(n,r)=>r(!1)),t.register("focus",H.moduleName,(n,r)=>{const s=this.doc().scrollTop/this.doc().offsetHeight;this.reportProgress({progress:s,reference:this.wnd.innerHeight/this.doc().scrollHeight}),r(!0)}),t.register("first_visible_locator",H.moduleName,(n,r)=>{const s=re(A,!0);this.comms.send("first_visible_locator",s.serialize()),r(!0)}),t.log("ScrollSnapper Mounted"),this.createCustomElement(),this.createAnchorElements(),!0}unmount(A,t){var e;return t.unregisterAll(H.moduleName),this.removeAnchorElements(),(e=A.document.getElementById(he))==null||e.remove(),t.log("ScrollSnapper Unmounted"),!0}};ce.moduleName="scroll_snapper";let nn=ce;class le extends pA{constructor(){super(...arguments),this.pointerMoved=!1,this.onPointerUp=this.onPointUp.bind(this),this.onPointerMove=this.onPointMove.bind(this),this.onPointerDown=this.onPointDown.bind(this),this.onContextMenu=this.onContext.bind(this),this.onClicker=this.onClick.bind(this)}onPointUp(A){var t,e,n,r,s;const o=this.wnd.getSelection();if(o&&((t=o.toString())==null?void 0:t.length)>0){const h=(e=o.getRangeAt(0))==null?void 0:e.getClientRects();if(!h||h.length===0)return;const c=h[0],l={text:o.toString(),x:c.x,y:c.y,width:c.width,height:c.height,targetFrameSrc:(r=(n=this.wnd)==null?void 0:n.location)==null?void 0:r.href};this.comms.send("text_selected",l)}if(this.pointerMoved){this.pointerMoved=!1;return}if(!(o!=null&&o.isCollapsed)||!A.isPrimary)return;const a=this.wnd.devicePixelRatio;A.preventDefault(),this.comms.send(A.pointerType==="touch"?"tap":"click",{defaultPrevented:A.defaultPrevented,x:A.clientX*a,y:A.clientY*a,targetFrameSrc:this.wnd.location.href,targetElement:A.target.outerHTML,interactiveElement:(s=ne(A.target))==null?void 0:s.outerHTML,cssSelector:this.wnd._readium_cssSelectorGenerator.getCssSelector(A.target)}),this.pointerMoved=!1}onPointMove(A){if(A.movementY!==void 0&&A.movementX!==void 0){(Math.abs(A.movementX)>1||Math.abs(A.movementY)>1)&&(this.pointerMoved=!0);return}this.pointerMoved=!0}onPointDown(){this.pointerMoved=!1}onContext(A){this.onPointUp(A),this.pointerMoved=!1}onClick(A){if(A.preventDefault(),!A.isTrusted){const t=new PointerEvent("pointerup",{isPrimary:!0,pointerType:"mouse",clientX:A.clientX,clientY:A.clientY});Object.defineProperty(t,"target",{writable:!1,value:A.target}),Object.defineProperty(t,"defaultPrevented",{writable:!1,value:A.defaultPrevented}),this.onPointUp(t)}}mount(A,t){return this.wnd=A,this.comms=t,A.document.addEventListener("pointerdown",this.onPointerDown),A.document.addEventListener("pointerup",this.onPointerUp),A.document.addEventListener("contextmenu",this.onContextMenu),A.document.addEventListener("pointermove",this.onPointerMove),A.document.addEventListener("click",this.onClicker),t.log("Peripherals Mounted"),!0}unmount(A,t){return A.document.removeEventListener("pointerdown",this.onPointerDown),A.document.removeEventListener("pointerup",this.onPointerUp),A.document.removeEventListener("contextmenu",this.onContextMenu),A.document.removeEventListener("pointermove",this.onPointerMove),A.document.removeEventListener("click",this.onClicker),t.log("Peripherals Unmounted"),!0}}le.moduleName="peripherals";const ge=class at extends pA{constructor(){super(...arguments),this.mediaPlayingCount=0,this.allAnimations=new Set}wndOnErr(A){var t;(t=this.comms)==null||t.send("error",{message:A.message,filename:A.filename,lineno:A.lineno,colno:A.colno})}unblock(A){var t;for(A._readium_blockEvents=!1;((t=A._readium_blockedEvents)==null?void 0:t.length)>0;){const e=A._readium_blockedEvents.shift();switch(e[0]){case 0:Reflect.apply(e[1],e[2],e[3]);break;case 1:const n=e[1],r=e[2];A.removeEventListener(n.type,A._readium_eventBlocker,!0);const s=new Event(n.type,{bubbles:n.bubbles,cancelable:n.cancelable});r?r.dispatchEvent(s):A.dispatchEvent(s);break}}}onMediaPlayEvent(){var A;this.mediaPlayingCount++,(A=this.comms)==null||A.send("media_play",this.mediaPlayingCount)}onMediaPauseEvent(){var A;this.mediaPlayingCount>0&&this.mediaPlayingCount--,(A=this.comms)==null||A.send("media_pause",this.mediaPlayingCount)}pauseAllMedia(A){const t=A.document.querySelectorAll("audio,video");for(let e=0;e<t.length;e++)t[e].pause()}mount(A,t){this.comms=t,A.addEventListener("error",this.wndOnErr,!1),Reflect.defineProperty(A.navigator,"epubReadingSystem",{value:{name:"readium-ts-toolkit",version:"1.3.2",hasFeature:(n,r="")=>{switch(n){case"dom-manipulation":return!0;case"layout-changes":return!0;case"touch-events":return!0;case"mouse-events":return!0;case"keyboard-events":return!0;case"spine-scripting":return!0;case"embedded-web-content":return!0;default:return!1}}},writable:!1}),"getAnimations"in A.document&&A.document.getAnimations().forEach(n=>{n.cancel(),this.allAnimations.add(n)}),t.register("activate",at.moduleName,(n,r)=>{this.allAnimations.forEach(s=>{s.cancel(),s.play()}),r(!0)}),t.register("unfocus",at.moduleName,(n,r)=>{this.pauseAllMedia(A),this.allAnimations.forEach(s=>s.pause()),r(!0)});const e=A.document.querySelectorAll("audio,video");for(let n=0;n<e.length;n++){const r=e[n];r.addEventListener("play",this.onMediaPlayEvent,{passive:!0}),r.addEventListener("pause",this.onMediaPauseEvent,{passive:!0})}return t.log("Setup Mounted"),!0}unmount(A,t){return A.removeEventListener("error",this.wndOnErr),A.removeEventListener("play",this.onMediaPlayEvent),A.removeEventListener("pause",this.onMediaPauseEvent),this.allAnimations.forEach(e=>e.cancel()),this.allAnimations.clear(),t.log("Setup Unmounted"),!0}};ge.moduleName="setup";let de=ge;const Me="readium-viewport",ue=class MA extends de{onViewportWidthChanged(A){const t=A.target;At(t,"--RS__viewportWidth",`${t.innerWidth}px`)}mount(A,t){if(!super.mount(A,t))return!1;const e=A.document.createElement("meta");return e.dataset.readium="true",e.setAttribute("name","viewport"),e.setAttribute("id",Me),e.setAttribute("content","width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, shrink-to-fit=no"),A.document.head.appendChild(e),A.addEventListener("orientationchange",this.onViewportWidthChanged),A.addEventListener("resize",this.onViewportWidthChanged),this.onViewportWidthChanged({target:A}),t.register("set_property",MA.moduleName,(n,r)=>{const s=n;At(A,s[0],s[1]),r(!0)}),t.register("remove_property",MA.moduleName,(n,r)=>{qt(A,n),r(!0)}),t.register("activate",MA.moduleName,(n,r)=>{this.unblock(A),r(!0)}),t.log("ReflowableSetup Mounted"),!0}unmount(A,t){var e;return t.unregisterAll(MA.moduleName),(e=A.document.head.querySelector(`#${Me}`))==null||e.remove(),A.removeEventListener("orientationchange",this.onViewportWidthChanged),t.log("ReflowableSetup Unmounted"),super.unmount(A,t)}};ue.moduleName="reflowable_setup";let rn=ue;const me="readium-fixed-style",Be=class O extends de{mount(A,t){if(!super.mount(A,t))return!1;A.navigator.epubReadingSystem.layoutStyle="paginated";const e=A.document.createElement("style");return e.id=me,e.dataset.readium="true",e.textContent=`
        html, body {
            text-size-adjust: none;
            -ms-text-size-adjust: none;
            -webkit-text-size-adjust: none;
            -moz-text-size-adjust: none;

            /* Fight Safari pinches */
            touch-action: none !important;
            min-height: 100%;

            /*cursor: var() TODO*/
        }`,A.document.head.appendChild(e),t.register("set_property",O.moduleName,(n,r)=>{const s=n;At(A,s[0],s[1]),r(!0)}),t.register("remove_property",O.moduleName,(n,r)=>{qt(A,n),r(!0)}),t.register("first_visible_locator",O.moduleName,(n,r)=>r(!1)),t.register("unfocus",O.moduleName,(n,r)=>{N(A),r(!0)}),t.register(["focus","go_next","go_prev","go_id","go_end","go_start","go_text","go_progression"],O.moduleName,(n,r)=>r(!0)),t.register("activate",O.moduleName,(n,r)=>{this.unblock(A),r(!0)}),t.log("FixedSetup Mounted"),!0}unmount(A,t){var e;return t.unregisterAll(O.moduleName),(e=A.document.getElementById(me))==null||e.remove(),t.log("FixedSetup Unmounted"),super.unmount(A,t)}};Be.moduleName="fixed_setup";let sn=Be;const on=["fixed_setup","decorator","peripherals"],an=["reflowable_setup","decorator","peripherals","column_snapper","scroll_snapper"],tt=new Map([sn,rn,le,Li,$i,nn].map(i=>[i.moduleName,i]));class zA{constructor(A=window,t=[]){this.loadedModules=[],this.wnd=A,this.comms=new hi(A);const e=[...new Set(t)];if(e.length){if(typeof A>"u")throw Error("Loader is not in a web browser");A.parent!==A&&this.comms.log("Loader is probably in a frame"),this.loadedModules=e.map(n=>{const r=this.loadModule(n);if(r)return r.mount(this.wnd,this.comms),r}).filter(n=>n!==void 0)}}loadModule(A){const t=tt.get(A);return t===void 0?(this.comms.log(`Module "${name}" does not exist in the library`),t):new t}addModule(A){const t=this.loadModule(A);return!t||!t.mount(this.wnd,this.comms)?!1:(this.loadedModules.push(t),!0)}removeModule(A){const t=tt.get(A);if(t===void 0)return this.comms.log(`Module "${A}" does not exist in the library`),!1;const e=this.loadedModules.findIndex(n=>n instanceof t);return e<0?!1:(this.loadedModules[e].unmount(this.wnd,this.comms),this.loadedModules.splice(e,1),!0)}destroy(){this.comms.destroy(),this.loadedModules.forEach(A=>A.unmount(this.wnd,this.comms)),this.loadedModules=[]}}const hn=1e4;class et{constructor(A,t){this.registry=new Map,this._ready=!1,this.listenerBuffer=[],this.handler=this.handle.bind(this),this.wnd=A,this.origin=t;try{this.channelId=window.crypto.randomUUID()}catch{this.channelId=vA()}this.gc=setInterval(()=>{this.registry.forEach((e,n)=>{performance.now()-e.time>hn&&(console.warn(n,"event for",e.key,"was never handled!"),this.registry.delete(n))})},5e3),window.addEventListener("message",this.handler),this.send("_ping",void 0)}set listener(A){this.listenerBuffer.length>0&&this.listenerBuffer.forEach(t=>A(t[0],t[1])),this.listenerBuffer=[],this._listener=A}clearListener(){typeof this._listener=="function"&&(this._listener=void 0)}halt(){this._ready=!1,window.removeEventListener("message",this.handler),clearInterval(this.gc),this._listener=void 0,this.registry.clear()}resume(){window.addEventListener("message",this.handler),this._ready=!0}handle(A){const t=A.data;if(!t._readium){console.warn("Ignoring",t);return}if(t._channel===this.channelId)switch(t.key){case"_ack":{if(!t.id)return;const e=this.registry.get(t.id);if(!e)return;this.registry.delete(t.id),e.cb(!!t.data);return}case"_pong":this._ready=!0;default:{if(!this.ready)return;typeof this._listener=="function"?this._listener(t.key,t.data):this.listenerBuffer.push([t.key,t.data])}}}get ready(){return this._ready}send(A,t,e,n=!1,r=[]){const s=vA();return e&&this.registry.set(s,{cb:e,time:performance.now(),key:A}),this.wnd.postMessage({_readium:eA,_channel:this.channelId,id:s,data:t,key:A,strict:n},"/",r),s}}class Ee{constructor(A){this.currModules=[],this.frame=document.createElement("iframe"),this.frame.classList.add("readium-navigator-iframe"),this.frame.style.visibility="hidden",this.frame.style.setProperty("aria-hidden","true"),this.frame.style.opacity="0",this.frame.style.position="absolute",this.frame.style.pointerEvents="none",this.frame.style.transition="visibility 0s, opacity 0.1s linear",this.source=A}async load(A){return new Promise((t,e)=>{var n;if(this.loader){const r=this.frame.contentWindow;if([...this.currModules].sort().join("|")===[...A].sort().join("|")){try{t(r)}catch{}return}(n=this.comms)==null||n.halt(),this.loader.destroy(),this.loader=new zA(r,A),this.currModules=A,this.comms=void 0;try{t(r)}catch{}return}this.frame.onload=()=>{const r=this.frame.contentWindow;this.loader=new zA(r,A),this.currModules=A;try{t(r)}catch{}},this.frame.onerror=r=>{try{e(r)}catch{}},this.frame.contentWindow.location.replace(this.source)})}async destroy(){var A;await this.hide(),(A=this.loader)==null||A.destroy(),this.frame.remove()}async hide(){var A;if(this.frame.style.visibility="hidden",this.frame.style.setProperty("aria-hidden","true"),this.frame.style.opacity="0",this.frame.style.pointerEvents="none",this.frame.parentElement)return this.comms===void 0?void 0:new Promise((t,e)=>{var n;(n=this.comms)==null||n.send("unfocus",void 0,r=>{var s;(s=this.comms)==null||s.halt(),t()})});(A=this.comms)==null||A.halt()}async show(A){if(!this.frame.parentElement){console.warn("Trying to show frame that is not attached to the DOM");return}return this.comms?this.comms.resume():this.comms=new et(this.frame.contentWindow,this.source),new Promise((t,e)=>{var n;(n=this.comms)==null||n.send("activate",void 0,()=>{var r;(r=this.comms)==null||r.send("focus",void 0,()=>{var o;const s=()=>{this.frame.style.removeProperty("visibility"),this.frame.style.removeProperty("aria-hidden"),this.frame.style.removeProperty("opacity"),this.frame.style.removeProperty("pointer-events"),t()};A&&A>0?(o=this.comms)==null||o.send("go_progression",A,s):s()})})})}get iframe(){return this.frame}get realSize(){return this.frame.getBoundingClientRect()}get window(){if(!this.frame.contentWindow)throw Error("Trying to use frame window when it doesn't exist");return this.frame.contentWindow}get atLeft(){return this.window.scrollX<5}get atRight(){return this.window.scrollX>this.window.document.scrollingElement.scrollWidth-this.window.innerWidth-5}get msg(){return this.comms}get ldr(){return this.loader}}const fe=5,Ie=3;class pe{constructor(A,t){this.pool=new Map,this.blobs=new Map,this.inprogress=new Map,this.container=A,this.positions=t}async destroy(){let A=this.inprogress.values(),t=A.next();const e=[];for(;t.value;)e.push(t.value),t=A.next();e.length>0&&await Promise.allSettled(e),this.inprogress.clear();let n=this.pool.values(),r=n.next();for(;r.value;)await r.value.destroy(),r=n.next();this.pool.clear(),this.blobs.forEach(s=>URL.revokeObjectURL(s)),this.container.childNodes.forEach(s=>{(s.nodeType===Node.ELEMENT_NODE||s.nodeType===Node.TEXT_NODE)&&s.remove()})}async update(A,t,e,n=!1){let r=this.positions.findIndex(a=>a.locations.position===t.locations.position);if(r<0)throw Error(`Locator not found in position list: ${t.locations.position} > ${this.positions.reduce((a,h)=>h.locations.position||0>a?h.locations.position||0:a,0)}`);const s=this.positions[r].href;this.inprogress.has(s)&&await this.inprogress.get(s);const o=new Promise(async(a,h)=>{var m,B,f;const c=[],l=[];this.positions.forEach((E,p)=>{(p>r+fe||p<r-fe)&&(c.includes(E.href)||c.push(E.href)),p<r+Ie&&p>r-Ie&&(l.includes(E.href)||l.push(E.href))}),c.forEach(async E=>{var p;l.includes(E)||this.pool.has(E)&&(await((p=this.pool.get(E))==null?void 0:p.destroy()),this.pool.delete(E))}),this.currentBaseURL!==void 0&&A.baseURL!==this.currentBaseURL&&(this.blobs.forEach(E=>URL.revokeObjectURL(E)),this.blobs.clear()),this.currentBaseURL=A.baseURL;const g=async E=>{if(this.pool.has(E)){const w=this.pool.get(E);if(!this.blobs.has(E))await w.destroy(),this.pool.delete(E);else{await w.load(e);return}}const p=A.readingOrder.findWithHref(E);if(!p)return;if(!this.blobs.has(E)){const Y=await new Bt(A,this.currentBaseURL||"",p).build();this.blobs.set(E,Y)}const I=new Ee(this.blobs.get(E));E!==s&&await I.hide(),this.container.appendChild(I.iframe),await I.load(e),this.pool.set(E,I)};try{await Promise.all(l.map(E=>g(E)))}catch(E){h(E)}const u=this.pool.get(s);if((u==null?void 0:u.source)!==((m=this._currentFrame)==null?void 0:m.source)||n){await((B=this._currentFrame)==null?void 0:B.hide()),u&&await u.load(e);const E=(((f=t==null?void 0:t.locations)==null?void 0:f.progression)??0)>0;u&&await u.show(E?t.locations.progression:void 0),this._currentFrame=u}a()});this.inprogress.set(s,o),await o,this.inprogress.delete(s)}get currentFrames(){return[this._currentFrame]}get currentBounds(){const A={x:0,y:0,width:0,height:0,top:0,right:0,bottom:0,left:0,toJSON(){return this}};return this.currentFrames.forEach(t=>{if(!t)return;const e=t.realSize;A.x=Math.min(A.x,e.x),A.y=Math.min(A.y,e.y),A.width+=e.width,A.height=Math.max(A.height,e.height),A.top=Math.min(A.top,e.top),A.right=Math.min(A.right,e.right),A.bottom=Math.min(A.bottom,e.bottom),A.left=Math.min(A.left,e.left)}),A}}class we{constructor(A,t,e){this.currModules=[],this.cachedPage=void 0,this.peripherals=A,this.debugHref=e,this.frame=document.createElement("iframe"),this.frame.classList.add("readium-navigator-iframe"),this.frame.classList.add("blank"),this.frame.scrolling="no",this.frame.style.visibility="hidden",this.frame.style.setProperty("aria-hidden","true"),this.frame.style.display="none",this.frame.style.position="absolute",this.frame.style.pointerEvents="none",this.frame.style.transformOrigin="0 0",this.frame.style.transform="scale(1)",this.frame.style.background="#fff",this.frame.style.touchAction="none",this.frame.dataset.originalHref=e,this.source="about:blank",this.wrapper=document.createElement("div"),this.wrapper.style.position="relative",this.wrapper.style.float=this.wrapper.style.cssFloat=t===F.rtl?"right":"left",this.wrapper.appendChild(this.frame)}async load(A,t){return this.source===t&&this.loadPromise&&[...this.currModules].sort().join("|")===[...A].sort().join("|")?this.loadPromise:(this.loaded&&this.source!==t&&this.window.stop(),this.source=t,this.loadPromise=new Promise((e,n)=>{var r;if(this.loader&&this.loaded){const s=this.frame.contentWindow;if([...this.currModules].sort().join("|")===[...A].sort().join("|")){try{e(s),this.loadPromise=void 0}catch{}return}(r=this.comms)==null||r.halt(),this.loader.destroy(),this.loader=new zA(s,A),this.currModules=A,this.comms=void 0;try{e(s),this.loadPromise=void 0}catch{}return}this.frame.addEventListener("load",()=>{const s=this.frame.contentWindow;this.loader=new zA(s,A),this.currModules=A,this.peripherals.observe(this.wrapper),this.peripherals.observe(s);try{e(s)}catch{}},{once:!0}),this.frame.addEventListener("error",s=>{try{n(s.error),this.loadPromise=void 0}catch{}},{once:!0}),this.frame.style.removeProperty("display"),this.frame.contentWindow.location.replace(this.source)}),this.loadPromise)}loadPageSize(){const A=this.frame.contentWindow,t=A.document.head.querySelector("meta[name=viewport]");if(t){const e=/(\w+) *= *([^\s,]+)/g;let n,r=0,s=0;for(;n=e.exec(t.content);)n[1]==="width"?r=Number.parseFloat(n[2]):n[1]==="height"&&(s=Number.parseFloat(n[2]));if(r>0&&s>0)return{width:r,height:s}}return{width:A.document.body.scrollWidth,height:A.document.body.scrollHeight}}update(A){if(!this.loaded)return;const t=this.loadPageSize();this.frame.style.height=`${t.height}px`,this.frame.style.width=`${t.width}px`;const e=Math.min(this.wrapper.clientWidth/t.width,this.wrapper.clientHeight/t.height);this.frame.style.transform=`scale(${e})`;const n=this.frame.getBoundingClientRect(),r=this.wrapper.clientHeight-n.height;if(this.frame.style.top=`${r/2}px`,A===D.left){const s=this.wrapper.clientWidth-n.width;this.frame.style.left=`${s}px`}else if(A===D.center){const s=this.wrapper.clientWidth-n.width;this.frame.style.left=`${s/2}px`}else this.frame.style.left="0px";this.frame.style.removeProperty("visibility"),this.frame.style.removeProperty("aria-hidden"),this.frame.style.removeProperty("pointer-events"),this.frame.classList.remove("blank"),this.frame.classList.add("loaded")}async destroy(){var A;await this.unfocus(),(A=this.loader)==null||A.destroy(),this.wrapper.remove()}async unload(){var A,t;if(this.loaded)return this.deselect(),this.frame.style.visibility="hidden",this.frame.style.setProperty("aria-hidden","true"),this.frame.style.pointerEvents="none",this.frame.classList.add("blank"),this.frame.classList.remove("loaded"),(A=this.comms)==null||A.halt(),(t=this.loader)==null||t.destroy(),this.comms=void 0,this.frame.blur(),new Promise((e,n)=>{this.frame.addEventListener("load",()=>{try{this.showPromise=void 0,e()}catch{}},{once:!0}),this.frame.addEventListener("error",r=>{try{this.showPromise=void 0,n(r.error)}catch{}},{once:!0}),this.source="about:blank",this.frame.contentWindow.location.replace("about:blank"),this.frame.style.display="none"})}deselect(){var A,t;(t=(A=this.frame.contentWindow)==null?void 0:A.getSelection())==null||t.removeAllRanges()}async unfocus(){var A;if(this.frame.parentElement)return this.comms===void 0?void 0:new Promise((t,e)=>{var n;(n=this.comms)==null||n.send("unfocus",void 0,r=>{var s;(s=this.comms)==null||s.halt(),this.showPromise=void 0,t()})});(A=this.comms)==null||A.halt()}async show(A){if(!this.frame.parentElement){console.warn("Trying to show frame that is not attached to the DOM");return}if(!this.loaded){this.showPromise=void 0;return}return this.showPromise?(this.cachedPage!==A&&(this.update(A),this.cachedPage=A),this.showPromise):(this.cachedPage=A,this.comms?this.comms.resume():this.comms=new et(this.frame.contentWindow,this.source),this.showPromise=new Promise((t,e)=>{this.comms.send("focus",void 0,n=>{this.update(this.cachedPage),t()})}),this.showPromise)}async activate(){return new Promise((A,t)=>{var e;if(!this.comms)return A();(e=this.comms)==null||e.send("activate",void 0,()=>{A()})})}get element(){return this.wrapper}get iframe(){return this.frame}get realSize(){return this.frame.getBoundingClientRect()}get loaded(){return this.frame.contentWindow&&this.frame.contentWindow.location.href!=="about:blank"}set width(A){const t=`${A}%`;this.wrapper.style.width!==t&&(this.wrapper.style.width=t)}set height(A){const t=`${A}px`;this.wrapper.style.height!==t&&(this.wrapper.style.height=t)}get window(){if(!this.frame.contentWindow)throw Error("Trying to use frame window when it doesn't exist");return this.frame.contentWindow}get atLeft(){return this.window.scrollX<5}get atRight(){return this.window.scrollX>this.window.document.scrollingElement.scrollWidth-this.window.innerWidth-5}get msg(){return this.comms}get ldr(){return this.loader}}/*!
 *                                                                                                                         (℠)
 *  # sML.js | I'm a Simple and Middling Library.
 *
 *  * Copyright (c) Satoru MATSUSHIMA - https://github.com/satorumurmur/sML
 *  * Licensed under the MIT license. - http://www.opensource.org/licenses/mit-license.php
 *
 * Portions of this code come from the sML library
 * Current version: 1.0.36
 */class cn{constructor(){const A=navigator.userAgentData,t=navigator.userAgent,e=r=>(typeof r=="string"||typeof r=="number")&&r?String(r).replace(/_/g,".").split(".").map(s=>parseInt(s)||0):[],n=(r="")=>{if(!r)return[];const s=new RegExp("^.*"+r+"[ :\\/]?(\\d+([\\._]\\d+)*).*$");return s.test(t)?e(t.replace(s,"$1")):[]};this.OS=(r=>(/(macOS|Mac OS X)/.test(t)?(/\(iP(hone|od touch);/.test(t)&&(r.iOS=n("CPU (?:iPhone )?OS ")),/\(iPad;/.test(t)?r.iOS=r.iPadOS=n("CPU (?:iPhone )?OS "):/(macOS|Mac OS X) \d/.test(t)&&(document.ontouchend!==void 0?r.iOS=r.iPadOS=n():r.macOS=n("(?:macOS|Mac OS X) "))):/Windows( NT)? \d/.test(t)?r.Windows=(s=>s[0]!==6||!s[1]?s:s[1]===1?[7]:s[1]===2?[8]:[8,1])(n("Windows(?: NT)?")):/Android \d/.test(t)?r.Android=n("Android"):/CrOS/.test(t)?r.ChromeOS=n():/X11;/.test(t)&&(r.Linux=n()),r))({}),A&&A.getHighEntropyValues(["architecture","model","platform","platformVersion","uaFullVersion"]).then(r=>(s=>{const o=r.platform,a=r.platformVersion;if(!(!o||!a)){if(/^i(OS|P(hone|od touch))$/.test(o))s.iOS=e(a);else if(/^iPad(OS)?$/.test(o))s.iOS=s.iPadOS=e(a);else if(/^(macOS|(Mac )?OS X|Mac(Intel)?)$/.test(o))document.ontouchend!==void 0?s.iOS=s.iPadOS=e():s.macOS=e(a);else if(/^(Microsoft )?Windows$/.test(o))s.Windows=e(a);else if(/^(Google )?Android$/.test(o))s.Android=e(a);else if(/^((Google )?Chrome OS|CrOS)$/.test(o))s.ChromeOS=e(a);else if(/^(Linux|Ubuntu|X11)$/.test(o))s.Linux=e(a);else return;Object.keys(this.OS).forEach(h=>delete this.OS[h]),Object.assign(this.OS,s)}})({})),this.UA=(r=>{let s=!1;if(A&&Array.isArray(A.brands)){const o=A.brands.reduce((a,h)=>(a[h.brand]=[h.version*1],a),{});o["Google Chrome"]?(s=!0,r.Blink=r.Chromium=o.Chromium||[],r.Chrome=o["Google Chrome"]):o["Microsoft Edge"]?(s=!0,r.Blink=r.Chromium=o.Chromium||[],r.Edge=o["Microsoft Edge"]):o.Opera&&(s=!0,r.Blink=r.Chromium=o.Chromium||[],r.Opera=o.Opera)}return s||(/ Gecko\/\d/.test(t)?(r.Gecko=n("rv"),/ Waterfox\/\d/.test(t)?r.Waterfox=n("Waterfox"):/ Firefox\/\d/.test(t)&&(r.Firefox=n("Firefox"))):/ Edge\/\d/.test(t)?(r.EdgeHTML=n("Edge"),r.Edge=r.EdgeHTML):/ Chrom(ium|e)\/\d/.test(t)?(r.Blink=r.Chromium=(o=>o[0]?o:n("Chrome"))(n("Chromium")),/ EdgA?\/\d/.test(t)?r.Edge=(o=>o[0]?o:n("Edg"))(n("EdgA")):/ OPR\/\d/.test(t)?r.Opera=n("OPR"):/ Vivaldi\/\d/.test(t)?r.Vivaldi=n("Vivaldi"):/ Silk\/\d/.test(t)?r.Silk=n("Silk"):/ UCBrowser\/\d/.test(t)?r.UCBrowser=n("UCBrowser"):/ Phoebe\/\d/.test(t)?r.Phoebe=n("Phoebe"):r.Chrome=(o=>o[0]?o:r.Chromium)(n("Chrome"))):/ AppleWebKit\/\d/.test(t)?(r.WebKit=n("AppleWebKit"),/ CriOS \d/.test(t)?r.Chrome=n("CriOS"):/ FxiOS \d/.test(t)?r.Firefox=n("FxiOS"):/ EdgiOS\/\d/.test(t)?r.Edge=n("EdgiOS"):/ Version\/\d/.test(t)&&(r.Safari=n("Version"))):/ Trident\/\d/.test(t)&&(r.Trident=n("Trident"),r.InternetExplorer=(o=>o[0]?o:n("MSIE"))(n("rv")))),/[\[; ]FB(AN|_IAB)\//.test(t)&&(r.Facebook=n("FBAV")),/ Line\/\d/.test(t)&&(r.LINE=n("Line")),r})({}),this.Env={get:()=>[this.OS,this.UA].reduce((r,s)=>{for(const o in s)s[o]&&r.push(o);return r},[])}}}const NA=new cn;var Fe=(i=>(i[i.Left=0]="Left",i[i.Center=1]="Center",i[i.Right=2]="Right",i))(Fe||{}),Ue=(i=>(i[i.Top=0]="Top",i[i.Middle=1]="Middle",i[i.Bottom=2]="Bottom",i))(Ue||{});class ye{constructor(){this.outerWidth=0,this.outerHeight=0,this.HTML=document.documentElement,this.Head=document.head,this.Body=document.body}refreshOuterPixels(A){NA.OS.iOS||(this.outerHeight=window.outerHeight-window.innerHeight,NA.OS.Android&&NA.UA.Chrome&&window.screen.height>window.innerHeight&&(this.outerHeight=(window.screen.height-window.innerHeight)/1.5),this.outerWidth=window.outerWidth-window.innerWidth)}getBibiEventCoord(A,t=0){var n;const e={X:0,Y:0};return/^touch/.test(A.type)?(e.X=A.touches[t].screenX,e.Y=A.touches[t].screenY):(e.X=A.screenX,e.Y=A.screenY),(((n=A.target.ownerDocument)==null?void 0:n.documentElement)||A.target.documentElement)===this.HTML&&(e.X-=this.HTML.scrollLeft+this.Body.scrollLeft,e.Y-=this.HTML.scrollTop+this.Body.scrollTop),e.X-=this.outerWidth,e.Y-=this.outerHeight,e}getTouchDistance(A){if(A.touches.length!==2)return 0;const t=A.touches[0].screenX-this.outerWidth,e=A.touches[0].screenY-this.outerHeight,n=A.touches[1].screenX-this.outerWidth,r=A.touches[1].screenY-this.outerHeight;return Math.sqrt(Math.pow(n-t,2)+Math.pow(r-e,2))}getTouchCenter(A){if(A.touches.length!==2)return null;const t=this.HTML.scrollLeft+this.Body.scrollLeft,e=this.HTML.scrollTop+this.Body.scrollTop,n=A.touches[0].screenX-this.outerWidth-t,r=A.touches[0].screenY-this.outerHeight-e,s=A.touches[1].screenX-this.outerWidth-t,o=A.touches[1].screenY-this.outerHeight-e;return{X:(n+s)/2,Y:(r+o)/2}}getBibiEvent(A){if(!A)return{Coord:null,Division:null,Ratio:null,Target:null};const t=this.getBibiEventCoord(A);let e=.3;const n={X:t.X/window.innerWidth,Y:t.Y/window.innerHeight};let r,s,o,a;o=r=e,a=s=1-e;const h={X:null,Y:null};return n.X<o?h.X=0:a<n.X?h.X=2:h.X=1,n.Y<r?h.Y=0:s<n.Y?h.Y=2:h.Y=1,{Target:A.target,Coord:t,Ratio:n,Division:h}}}class ln{constructor(){this._DOM={show:!1,pinchTarget:document.createElement("div"),touch1:document.createElement("div"),touch2:document.createElement("div"),center:document.createElement("div"),stats:document.createElement("div")},this._DOM.show=!0,this._DOM.pinchTarget.style.zIndex=this._DOM.stats.style.zIndex=this._DOM.center.style.zIndex=this._DOM.touch1.style.zIndex=this._DOM.touch2.style.zIndex="100000",this._DOM.pinchTarget.style.position=this._DOM.stats.style.position=this._DOM.center.style.position=this._DOM.touch1.style.position=this._DOM.touch2.style.position="absolute",this._DOM.pinchTarget.style.borderRadius=this._DOM.center.style.borderRadius=this._DOM.touch1.style.borderRadius=this._DOM.touch2.style.borderRadius="50%",this._DOM.pinchTarget.style.pointerEvents=this._DOM.stats.style.pointerEvents=this._DOM.center.style.pointerEvents=this._DOM.touch1.style.pointerEvents=this._DOM.touch2.style.pointerEvents="none",this._DOM.pinchTarget.style.display=this._DOM.center.style.display=this._DOM.touch1.style.display=this._DOM.touch2.style.display="none",this._DOM.pinchTarget.style.paddingTop=this._DOM.center.style.paddingTop="10px",this._DOM.pinchTarget.style.width=this._DOM.pinchTarget.style.height=this._DOM.center.style.width=this._DOM.center.style.height="10px",this._DOM.pinchTarget.style.backgroundColor="green",this._DOM.center.style.backgroundColor="red",this._DOM.touch1.style.backgroundColor=this._DOM.touch2.style.backgroundColor="blue",this._DOM.touch1.style.height=this._DOM.touch2.style.height="20px",this._DOM.touch1.style.width=this._DOM.touch2.style.width="20px",this._DOM.touch1.style.paddingTop=this._DOM.touch2.style.paddingTop="20px",this._DOM.touch1.textContent="1",this._DOM.touch2.textContent="2",this._DOM.stats.style.padding="20px",this._DOM.stats.style.backgroundColor="rgba(0,0,0,0.5)",this._DOM.stats.style.color="white",this._DOM.stats.textContent="[stats]",document.body.appendChild(this._DOM.stats),document.body.appendChild(this._DOM.center),document.body.appendChild(this._DOM.touch1),document.body.appendChild(this._DOM.touch2),document.body.appendChild(this._DOM.pinchTarget)}get show(){return this.DOM.show}get DOM(){return this._DOM}}const Qe=6,it=1.02,Re=50;class Ye{constructor(A,t=!1){this.dragState=0,this.minimumMoved=!1,this.pan={startX:0,endX:0,startY:0,overscrollX:0,overscrollY:0,letItGo:!1,preventClick:!1,translateX:0,translateY:0,touchID:0},this.pinch={startDistance:0,startScale:0,target:{X:0,Y:0},touchN:0,startTranslate:{X:0,Y:0}},this._scale=1,this.scaleDebouncer=0,this.frameBounds=null,this.debugger=null,this.btouchstartHandler=this.touchstartHandler.bind(this),this.btouchendHandler=this.touchendHandler.bind(this),this.btouchmoveHandler=this.touchmoveHandler.bind(this),this.bdblclickHandler=this.dblclickHandler.bind(this),this.bmousedownHandler=this.mousedownHandler.bind(this),this.bmouseupHandler=this.mouseupHandler.bind(this),this.bmousemoveHandler=this.mousemoveHandler.bind(this),this.moveFrame=0,this.manager=A,this.coordinator=new ye,this.attachEvents(),t&&(this.debugger=new ln)}get scale(){return this._scale}set scale(A){isNaN(A)&&(A=1),window.clearTimeout(this.scaleDebouncer),this.scaleDebouncer=window.setTimeout(()=>{this.dragState===0&&this.scale<it&&(this.pan.translateX=0,this.pan.translateY=0,this.clearPan(),this.manager.updateBookStyle()),this.manager.listener("zoom",A)},100),this._scale=A}attachEvents(){this.observe(this.manager.spineElement),this.pan={startX:0,startY:0,endX:0,overscrollX:0,overscrollY:0,letItGo:!1,preventClick:!1,translateX:0,translateY:0,touchID:0},this.pinch={startDistance:0,startScale:0,target:{X:0,Y:0},startTranslate:{X:0,Y:0},touchN:0}}clearPan(){this.pan.letItGo=!1,this.pan.touchID=0,this.pan.endX=0,this.pan.overscrollX=0,this.pan.overscrollY=0}clearPinch(){this.pinch={startDistance:0,startScale:this.pinch.startScale,target:{X:0,Y:0},touchN:0,startTranslate:{X:0,Y:0}}}observe(A){A.addEventListener("touchstart",this.btouchstartHandler),A.addEventListener("touchend",this.btouchendHandler),A.addEventListener("touchmove",this.btouchmoveHandler,{passive:!0}),A.addEventListener("dblclick",this.bdblclickHandler,{passive:!0}),A.addEventListener("mousedown",this.bmousedownHandler),A.addEventListener("mouseup",this.bmouseupHandler),A.addEventListener("mousemove",this.bmousemoveHandler)}clickHandler(A){}touchstartHandler(A){var n,r;if(["TEXTAREA","OPTION","INPUT","SELECT"].indexOf(A.target.nodeName)!==-1)return;switch(A.stopPropagation(),this.frameBounds=this.manager.currentBounds,this.coordinator.refreshOuterPixels(this.frameBounds),A.touches.length){case 3:return;case 2:{A.preventDefault(),this.pinch.startDistance=this.coordinator.getTouchDistance(A);const s=this.startTouch(A);this.pan.startX=s.X,this.pan.startY=s.Y,this.dragState=2,this.manager.updateBookStyle(!0),this.isScaled?(this.pinch.target.X-=this.pan.translateX*(this.pinch.startScale/this.scale),this.pinch.target.Y-=this.pan.translateY*(this.pinch.startScale/this.scale),this.pinch.target={X:0,Y:0},this.pinch.startScale=1/this.scale):(this.pinch.target={X:0,Y:0},this.pinch.startScale=this.scale),this.pinch.startTranslate={X:this.pan.translateX,Y:this.pan.translateY},(n=this.debugger)!=null&&n.show&&(this.debugger.DOM.touch2.style.display="",this.debugger.DOM.center.style.display="",this.debugger.DOM.pinchTarget.style.display="");return}case 1:this.pan.touchID=A.touches[0].identifier,(r=this.debugger)!=null&&r.show&&(this.debugger.DOM.touch1.style.display="");default:this.dragState<1&&(this.dragState=1),this.manager.updateBookStyle(!0)}this.manager.updateSpineStyle(!1);const e=this.startTouch(A);this.pan.startX=e.X,this.pan.startY=e.Y}startTouch(A){const t=this.coordinator.getTouchCenter(A)||this.coordinator.getBibiEventCoord(A);return{X:t.X-this.manager.width/2-this.pan.translateX*this.scale+this.manager.width/2,Y:t.Y-this.manager.height/2-this.pan.translateY*this.scale+this.manager.height/2}}touchendHandler(A){var t,e;if(A.stopPropagation(),!A.touches||A.touches.length===0)this.pan.endX&&!this.isScaled?(this.pinch.touchN&&(this.pan.endX=this.pan.startX),this.updateAfterDrag()):!this.pinch.touchN&&Math.abs(this.pan.overscrollX)>Re&&Math.abs(this.pan.overscrollY)<Re/2&&(this.pan.startX=0,this.pan.endX=-this.pan.overscrollX,this.updateAfterDrag()),this.dragState=0,this.minimumMoved=!1,this.clearPinch(),(t=this.debugger)!=null&&t.show&&(this.debugger.DOM.center.style.display="none",this.debugger.DOM.touch1.style.display="none",this.debugger.DOM.touch2.style.display="none");else if(A.touches.length===1){this.dragState=1,A.touches[0].identifier!==this.pan.touchID&&(this.pan.touchID=A.touches[0].identifier),(e=this.debugger)!=null&&e.show&&(this.debugger.DOM.center.style.display="none",this.debugger.DOM.touch2.style.display="none",this.debugger.DOM.pinchTarget.style.display="none");const n=this.startTouch(A);this.pan.startX=n.X,this.pan.startY=n.Y}window.setTimeout(()=>{this.manager.updateBookStyle(!0),this.dragState===0&&(this.scale<it&&(this.pan.translateX=0,this.pan.translateY=0),this.clearPan()),this.manager.updateBookStyle(!0)},50)}touchmoveHandler(A){var s,o,a,h,c;A.stopPropagation();const t=this.coordinator.getBibiEventCoord(A);Math.abs(this.pan.startY-t.Y)+Math.abs(this.pan.startX-t.X)>5&&(this.minimumMoved||(this.manager.deselect(),this.minimumMoved=!0),this.dragState<1&&(this.dragState=1));const e=(s=this.coordinator)==null?void 0:s.getTouchDistance(A);let n=!1;const r=this.scale;if(this.dragState===2&&e){if(this.pinch.touchN++,this.pinch.touchN<4)return;let l=e/this.pinch.startDistance*this.scale;l>=Qe&&(l=Qe),l<=it&&(l=1),this.scale=l,this.pinch.startDistance=e,n=!0}if(this.pan.letItGo===!1&&(this.pan.letItGo=Math.abs(this.pan.startY-t.Y)<Math.abs(this.pan.startX-t.X)),(o=this.debugger)!=null&&o.show&&(this.debugger.DOM.touch1.style.top=`${t.Y-10}px`,this.debugger.DOM.touch1.style.left=`${t.X-10}px`,this.debugger.DOM.touch1.innerText=`${t.X.toFixed(2)},${t.Y.toFixed(2)}`),this.dragState>0&&this.isScaled||this.dragState>1){if(this.dragState===1){const u={X:t.X-this.manager.width/2,Y:t.Y-this.manager.height/2};this.pan.translateX=(u.X-(this.pan.startX-this.manager.width/2))*1/this.scale,this.pan.translateY=(u.Y-(this.pan.startY-this.manager.height/2))*1/this.scale}else if(this.dragState===2){const u=this.coordinator.getTouchCenter(A);if((a=this.debugger)!=null&&a.show){this.debugger.DOM.center.style.top=`${u.Y-5}px`,this.debugger.DOM.center.style.left=`${u.X-5}px`,this.debugger.DOM.center.innerText=`${u.X.toFixed(2)},${u.Y.toFixed(2)}`;const p=this.coordinator.getBibiEventCoord(A,1);this.debugger.DOM.touch2.style.top=`${p.Y-10}px`,this.debugger.DOM.touch2.style.left=`${p.X-10}px`,this.debugger.DOM.touch2.innerText=`${p.X.toFixed(2)},${p.Y.toFixed(2)}`}u.X-=this.manager.width/2,u.Y-=this.manager.height/2;let m=-u.X/r;m+=u.X/this.scale,this.pinch.target.X+=m,u.X+=this.pinch.target.X*this.scale/this.pinch.startScale;let B=-u.Y/r;B+=u.Y/this.scale,this.pinch.target.Y+=B,u.Y+=this.pinch.target.Y*this.scale/this.pinch.startScale;let f=(u.X-(this.pan.startX-this.manager.width/2))*1/this.scale,E=(u.Y-(this.pan.startY-this.manager.height/2))*1/this.scale;this.pan.translateX=f,this.pan.translateY=E,(h=this.debugger)!=null&&h.show&&(this.debugger.DOM.pinchTarget.style.left=`${this.pinch.target.X*this.scale/this.pinch.startScale-5+this.manager.width/2}px`,this.debugger.DOM.pinchTarget.style.top=`${this.pinch.target.Y*this.scale/this.pinch.startScale-5+this.manager.height/2}px`,this.debugger.DOM.pinchTarget.innerText=`${(this.pinch.target.X*this.scale/this.pinch.startScale).toFixed(2)},${(this.pinch.target.Y*this.scale/this.pinch.startScale).toFixed(2)}`)}const l=this.frameBounds.width/6,g=this.frameBounds.height/6;this.pan.translateX<-l&&(this.pan.overscrollX=-(l+this.pan.translateX),this.pan.translateX=-l),this.pan.translateY<-g&&(this.pan.overscrollY=-(g+this.pan.translateY),this.pan.translateY=-g),this.pan.translateX>l&&(this.pan.overscrollX=l-this.pan.translateX,this.pan.translateX=l),this.pan.translateY>g&&(this.pan.overscrollY=g-this.pan.translateY,this.pan.translateY=g),n=!0,(c=this.debugger)!=null&&c.show&&(this.debugger.DOM.stats.innerText=`TX: ${this.pan.translateX.toFixed(2)}
TY: ${this.pan.translateY.toFixed(2)}
Zoom: ${this.scale.toFixed(2)}
Overscroll: ${this.pan.overscrollX.toFixed(2)},${this.pan.overscrollY.toFixed(2)}`)}if(n){this.manager.updateBookStyle();return}if(this.dragState>0&&this.pan.letItGo){this.pan.endX=t.X;const g=this.manager.currentSlide*(this.manager.width/this.manager.perPage),u=this.pan.endX-this.pan.startX,m=this.manager.rtl?g+u:g-u;cancelAnimationFrame(this.moveFrame),this.moveFrame=requestAnimationFrame(()=>{requestAnimationFrame(()=>{this.manager.spineElement.style.transform=`translate3d(${(this.manager.rtl?1:-1)*m}px, 0, 0)`})})}}dblclickHandler(A){clearTimeout(this.dtimer),this.pdblclick=!0,this.dtimer=window.setTimeout(()=>this.pdblclick=!1,200),!this.disableDblClick&&this.isScaled&&(this.scale=1)}get isScaled(){return this.scale>1}addTouch(A){A.touches=[{pageX:A.pageX,pageY:A.pageY}]}mousedownHandler(A){this.isScaled&&(this.addTouch(A),this.touchstartHandler(A))}mouseupHandler(A){this.isScaled&&this.touchendHandler(A)}mousemoveHandler(A){this.isScaled&&A.buttons>0&&(A.preventDefault(),this.addTouch(A),this.touchmoveHandler(A))}updateAfterDrag(){const A=(this.manager.rtl?-1:1)*(this.pan.endX-this.pan.startX),t=Math.abs(A);A>0&&t>this.manager.threshold&&this.manager.slength>this.manager.perPage?this.manager.listener("no_less",void 0):A<0&&t>this.manager.threshold&&this.manager.slength>this.manager.perPage&&this.manager.listener("no_more",void 0),this.manager.slideToCurrent(!0,!0)}}class Ce{constructor(A){this.shift=!0,this.spreads=[],this.nLandscape=0,this.index(A),this.testShift(A),console.log(`Indexed ${this.spreads.length} spreads for ${A.readingOrder.items.length} items`)}index(A,t=!1){this.nLandscape=0,A.readingOrder.items.forEach((e,n)=>{var s,o,a,h,c;t||(A.readingOrder.items[n]=e.addProperties({number:n+1,isImage:((s=e.type)==null?void 0:s.indexOf("image/"))===0}));const r=((o=e.properties)==null?void 0:o.getOrientation())===X.landscape;(!((a=e.properties)!=null&&a.getPage())||t)&&(e.properties=(h=e.properties)==null?void 0:h.add({page:r?"center":((this.shift?0:1)+n-this.nLandscape)%2?A.metadata.readingProgression===F.rtl?"right":"left":A.metadata.readingProgression===F.rtl?"left":"right"})),(r||(c=e.properties)!=null&&c.otherProperties.addBlank)&&this.nLandscape++}),t&&(this.spreads=[]),this.buildSpreads(A.readingOrder)}testShift(A){let t=!1;this.spreads.forEach((e,n)=>{var o,a,h,c,l;if(e.length>1)return;const r=e[0],s=(o=r.properties)==null?void 0:o.getOrientation();n===0&&(s===X.landscape||s!==X.portrait&&((r.width||0)>(r.height||0)||((a=r.properties)==null?void 0:a.getSpread())===uA.both))&&(this.shift=!1),t&&((h=r.properties)==null?void 0:h.getPage())===D.center&&this.spreads[n-1][0].addProperties({addBlank:!0}),s===X.portrait&&((c=r.properties)==null?void 0:c.getPage())!=="center"&&((l=r.properties)==null?void 0:l.otherProperties.number)>1?t=!0:t=!1}),this.shift||this.index(A,!0)}buildSpreads(A){let t=[];A.items.forEach((e,n)=>{var r;!n&&this.shift?this.spreads.push([e]):((r=e.properties)==null?void 0:r.getPage())===D.center?(t.length>0&&this.spreads.push(t),this.spreads.push([e]),t=[]):t.length>=2?(this.spreads.push(t),t=[e]):t.push(e)}),t.length>0&&this.spreads.push(t)}currentSpread(A,t){return this.spreads[Math.min(Math.floor(A/t),this.spreads.length-1)]}findByLink(A){return this.spreads.find(t=>t.includes(A))||void 0}}const ze=8,Ne=5,gn=300,dn=15e3,Mn=250,un=150,mn=500;class Te{constructor(A,t,e){var n;if(this.pool=new Map,this.blobs=new Map,this.inprogress=new Map,this.delayedShow=new Map,this.delayedTimeout=new Map,this.previousFrames=[],this.width=0,this.height=0,this.transform="",this.currentSlide=0,this.spread=!0,this.orientationInternal=-1,this.container=A,this.positions=t,this.pub=e,this.spreadPresentation=((n=e.metadata.getPresentation())==null?void 0:n.spread)||uA.auto,this.pub.metadata.effectiveReadingProgression!==F.rtl&&this.pub.metadata.effectiveReadingProgression!==F.ltr)throw Error("Unsupported reading progression for EPUB");this.spreader=new Ce(this.pub),this.containerHeightCached=A.clientHeight,this.resizeBoundHandler=this.nativeResizeHandler.bind(this),this.ownerWindow.addEventListener("resize",this.resizeBoundHandler),this.ownerWindow.addEventListener("orientationchange",this.resizeBoundHandler),this.bookElement=document.createElement("div"),this.bookElement.ariaLabel="Book",this.bookElement.tabIndex=-1,this.updateBookStyle(!0),this.spineElement=document.createElement("div"),this.spineElement.ariaLabel="Spine",this.bookElement.appendChild(this.spineElement),this.container.appendChild(this.bookElement),this.updateSpineStyle(!0),this.peripherals=new Ye(this),this.pub.readingOrder.items.forEach(r=>{var o,a;const s=new we(this.peripherals,this.pub.metadata.effectiveReadingProgression,r.href);this.spineElement.appendChild(s.element),this.pool.set(r.href,s),s.width=100/this.length*(((o=r.properties)==null?void 0:o.getOrientation())===X.landscape||(a=r.properties)!=null&&a.otherProperties.addBlank?this.perPage:1),s.height=this.height})}set listener(A){this._listener=A}get listener(){return this._listener}get doNotDisturb(){return this.peripherals.pan.touchID>0}nativeResizeHandler(A){this.resizeHandler(!0)}resizeHandler(A=!0,t=!0){this.currentSlide+this.perPage>this.length&&(this.currentSlide=this.length<=this.perPage?0:this.length-1),this.containerHeightCached=this.container.clientHeight,this.orientationInternal=-1,this.updateSpineStyle(!0),A&&(this.currentSlide=this.reAlign(),this.slideToCurrent(!t,t)),clearTimeout(this.resizeTimeout),this.resizeTimeout=window.setTimeout(()=>{this.pool.forEach((e,n)=>{var a,h;let r=this.pub.readingOrder.items.findIndex(c=>c.href===n);const s=this.pub.readingOrder.items[r];if(e.width=100/this.length*(((a=s.properties)==null?void 0:a.getOrientation())===X.landscape||(h=s.properties)!=null&&h.otherProperties.addBlank?this.perPage:1),e.height=this.height,!e.loaded)return;const o=this.spreader.findByLink(s);e.update(this.spreadPosition(o,s))})},Mn)}updateDimensions(){this.width=this.bookElement.clientWidth,this.height=this.bookElement.clientHeight}get rtl(){return this.pub.metadata.effectiveReadingProgression===F.rtl}get single(){return!this.spread||this.portrait}get perPage(){return this.spread&&!this.portrait?2:1}get threshold(){return 50}get portrait(){return this.spreadPresentation===uA.none?!0:(this.orientationInternal===-1&&(this.orientationInternal=this.containerHeightCached>this.container.clientWidth?1:0),this.orientationInternal===1)}updateSpineStyle(A,t=!0){let e="0";this.updateDimensions(),this.perPage>1&&(e=`${this.width/2}px`);const n={transition:A?`all ${t?un:mn}ms ease-out`:"all 0ms ease-out",marginRight:this.rtl?e:"0",marginLeft:this.rtl?"0":e,width:`${this.width/this.perPage*this.length}px`,transform:this.transform,contain:"content"};Object.assign(this.spineElement.style,n)}updateBookStyle(A=!1){var t,e;if(A){const n={overflow:"hidden",direction:this.pub.metadata.effectiveReadingProgression,cursor:"",height:"100%",width:"100%",position:"relative",outline:"none",transition:(t=this.peripherals)!=null&&t.dragState?"none":"transform .15s ease-in-out",touchAction:"none"};Object.assign(this.bookElement.style,n)}this.bookElement.style.transform=`scale(${((e=this.peripherals)==null?void 0:e.scale)||1})`+(this.peripherals?` translate3d(${this.peripherals.pan.translateX}px, ${this.peripherals.pan.translateY}px, 0px)`:"")}goTo(A){if(this.slength<=this.perPage)return;A=this.reAlign(A);const t=this.currentSlide;this.currentSlide=Math.min(Math.max(A,0),this.length-1),t!==this.currentSlide&&this.slideToCurrent(!1)}onChange(){this.peripherals.scale=1,this.updateBookStyle()}get offset(){return(this.rtl?1:-1)*this.currentSlide*(this.width/this.perPage)}get length(){if(this.single)return this.slength;const A=this.slength+this.nLandscape;return this.shift&&A%2===0?A+1:A}get slength(){return this.pub.readingOrder.items.length||0}get shift(){return this.spreader.shift}get nLandscape(){return this.spreader.nLandscape}setPerPage(A){A===0?this.spread=!0:A===1?this.spread=!1:this.spread=!0,requestAnimationFrame(()=>this.resizeHandler(!0))}slideToCurrent(A,t=!0){if(this.updateDimensions(),A)requestAnimationFrame(()=>{requestAnimationFrame(()=>{const e=`translate3d(${this.offset}px, 0, 0)`;this.spineElement.style.transform!==e&&(this.transform=e,this.updateSpineStyle(!0,t),this.deselect())})});else{const e=`translate3d(${this.offset}px, 0, 0)`;if(this.spineElement.style.transform===e)return;this.transform=e,this.updateSpineStyle(!1),this.deselect()}}bounce(A=!1){requestAnimationFrame(()=>{this.transform=`translate3d(${this.offset+50*(A?1:-1)}px, 0, 0)`,this.updateSpineStyle(!0,!0),setTimeout(()=>{this.transform=`translate3d(${this.offset}px, 0, 0)`,this.updateSpineStyle(!0,!0)},100)})}next(A=1){if(this.slength<=this.perPage)return!1;const t=this.currentSlide;return this.currentSlide=Math.min(this.currentSlide+A,this.length-1),this.perPage>1&&this.currentSlide%2&&this.currentSlide--,this.currentSlide===t&&(this.currentSlide+1,this.length),t!==this.currentSlide?(this.slideToCurrent(!0),this.onChange(),!0):(this.bounce(this.rtl),!1)}prev(A=1){if(this.slength<=this.perPage)return!1;const t=this.currentSlide;return this.currentSlide=Math.max(this.currentSlide-A,0),this.perPage>1&&this.currentSlide%2&&this.currentSlide++,t!==this.currentSlide?(this.slideToCurrent(!0),this.onChange(),!0):(this.bounce(!this.rtl),!1)}get ownerWindow(){return this.container.ownerDocument.defaultView||window}async destroy(){this.ownerWindow.removeEventListener("resize",this.resizeBoundHandler),this.ownerWindow.removeEventListener("orientationchange",this.resizeBoundHandler);let A=this.inprogress.values(),t=A.next();const e=[];for(;t.value;)e.push(t.value),t=A.next();e.length>0&&await Promise.allSettled(e),this.inprogress.clear();let n=this.pool.values(),r=n.next();for(;r.value;)await r.value.destroy(),r=n.next();this.pool.clear(),this.blobs.forEach(s=>URL.revokeObjectURL(s)),this.container.childNodes.forEach(s=>{(s.nodeType===Node.ELEMENT_NODE||s.nodeType===Node.TEXT_NODE)&&s.remove()})}makeSpread(A){return this.perPage<2?[this.pub.readingOrder.items[A]]:this.spreader.currentSpread(A,this.perPage)}reAlign(A=this.currentSlide){return A%2&&!this.single&&A++,A}spreadPosition(A,t){return this.perPage<2||A.length<2?D.center:t.href===A[0].href?this.rtl?D.right:D.left:this.rtl?D.left:D.right}async waitForItem(A){if(this.inprogress.has(A)&&await this.inprogress.get(A),this.delayedShow.has(A)){const t=this.delayedTimeout.get(A);t>0?clearTimeout(t):await this.delayedShow.get(A),this.delayedTimeout.set(A,0),this.delayedShow.delete(A)}}async cancelShowing(A){if(this.delayedShow.has(A)){const t=this.delayedTimeout.get(A);t>0&&clearTimeout(t),this.delayedShow.delete(A)}}async update(A,t,e,n=!1){let r=this.pub.readingOrder.items.findIndex(a=>a.href===t.href);if(r<0)throw Error("Href not found in reading order");this.currentSlide!==r&&(this.currentSlide=this.reAlign(r),this.slideToCurrent(!0));const s=this.makeSpread(this.currentSlide);this.perPage>1&&r++;for(const a of s)await this.waitForItem(a.href);const o=new Promise(async(a,h)=>{const c=[],l=[];this.positions.forEach((m,B)=>{(B>r+ze||B<r-ze)&&(c.includes(m.href)||c.push(m.href)),B<r+Ne&&B>r-Ne&&(l.includes(m.href)||l.push(m.href))}),c.forEach(async m=>{var B;l.includes(m)||this.pool.has(m)&&(this.cancelShowing(m),await((B=this.pool.get(m))==null?void 0:B.unload()))}),this.currentBaseURL!==void 0&&A.baseURL!==this.currentBaseURL&&(this.blobs.forEach(m=>URL.revokeObjectURL(m)),this.blobs.clear()),this.currentBaseURL=A.baseURL;const g=async m=>{const B=A.readingOrder.findIndexWithHref(m),f=A.readingOrder.items[B];if(f){if(!this.blobs.has(m)){const p=await new Bt(A,this.currentBaseURL||"",f).build(!0);this.blobs.set(m,p)}this.delayedShow.has(m)||this.delayedShow.set(m,new Promise((E,p)=>{let I=!1;const w=window.setTimeout(async()=>{this.delayedTimeout.set(m,0);const Y=this.makeSpread(this.reAlign(B)),oA=this.spreadPosition(Y,f),_=this.pool.get(m);await _.load(e,this.blobs.get(m)),this.peripherals.isScaled||await _.show(oA),this.delayedShow.delete(m),I=!0,E()},gn);setTimeout(()=>{!I&&this.delayedShow.has(m)&&p(`Offscreen load timeout: ${m}`)},dn),this.delayedTimeout.set(m,w)}))}};try{await Promise.all(l.map(m=>g(m)))}catch(m){h(m)}const u=[];for(const m of s){const B=this.pool.get(m.href),f=this.blobs.get(m.href);f&&(this.cancelShowing(m.href),await B.load(e,f),await B.show(this.spreadPosition(s,m)),this.previousFrames.push(B),await B.activate(),u.push(B))}for(;this.previousFrames.length>0;){const m=this.previousFrames.shift();m&&!u.includes(m)&&await m.unfocus()}this.previousFrames=u,a()});for(const a of s)this.inprogress.set(a.href,o);await o;for(const a of s)this.inprogress.delete(a.href)}get currentFrames(){if(this.perPage<2){const t=this.pub.readingOrder.items[this.currentSlide];return[this.pool.get(t.href)]}return this.spreader.currentSpread(this.currentSlide,this.perPage).map(t=>this.pool.get(t.href))}get currentBounds(){const A={x:0,y:0,width:0,height:0,top:0,right:0,bottom:0,left:0,toJSON(){return this}};return this.currentFrames.forEach(t=>{if(!t)return;const e=t.realSize;A.x=Math.min(A.x,e.x),A.y=Math.min(A.y,e.y),A.width+=e.width,A.height=Math.max(A.height,e.height),A.top=Math.min(A.top,e.top),A.right=Math.min(A.right,e.right),A.bottom=Math.min(A.bottom,e.bottom),A.left=Math.min(A.left,e.left)}),A}get currentNumbers(){var t,e,n,r;if(this.perPage<2)return[(t=this.pub.readingOrder.items[this.currentSlide].properties)==null?void 0:t.otherProperties.number];const A=this.spreader.currentSpread(this.currentSlide,this.perPage);return A.length>1?[(e=A[0].properties)==null?void 0:e.otherProperties.number,(n=A[A.length-1].properties)==null?void 0:n.otherProperties.number]:[(r=A[0].properties)==null?void 0:r.otherProperties.number]}deselect(){var A;(A=this.currentFrames)==null||A.forEach(t=>t==null?void 0:t.deselect())}}function b(i){if(typeof i!="string")throw new TypeError("Path must be a string. Received "+JSON.stringify(i))}function xe(i,A){for(var t="",e=0,n=-1,r=0,s,o=0;o<=i.length;++o){if(o<i.length)s=i.charCodeAt(o);else{if(s===47)break;s=47}if(s===47){if(!(n===o-1||r===1))if(n!==o-1&&r===2){if(t.length<2||e!==2||t.charCodeAt(t.length-1)!==46||t.charCodeAt(t.length-2)!==46){if(t.length>2){var a=t.lastIndexOf("/");if(a!==t.length-1){a===-1?(t="",e=0):(t=t.slice(0,a),e=t.length-1-t.lastIndexOf("/")),n=o,r=0;continue}}else if(t.length===2||t.length===1){t="",e=0,n=o,r=0;continue}}A&&(t.length>0?t+="/..":t="..",e=2)}else t.length>0?t+="/"+i.slice(n+1,o):t=i.slice(n+1,o),e=o-n-1;n=o,r=0}else s===46&&r!==-1?++r:r=-1}return t}function Bn(i,A){var t=A.dir||A.root,e=A.base||(A.name||"")+(A.ext||"");return t?t===A.root?t+e:t+i+e:e}var sA={resolve:function(){for(var A="",t=!1,e,n=arguments.length-1;n>=-1&&!t;n--){var r;n>=0?r=arguments[n]:(e===void 0&&(e=process.cwd()),r=e),b(r),r.length!==0&&(A=r+"/"+A,t=r.charCodeAt(0)===47)}return A=xe(A,!t),t?A.length>0?"/"+A:"/":A.length>0?A:"."},normalize:function(A){if(b(A),A.length===0)return".";var t=A.charCodeAt(0)===47,e=A.charCodeAt(A.length-1)===47;return A=xe(A,!t),A.length===0&&!t&&(A="."),A.length>0&&e&&(A+="/"),t?"/"+A:A},isAbsolute:function(A){return b(A),A.length>0&&A.charCodeAt(0)===47},join:function(){if(arguments.length===0)return".";for(var A,t=0;t<arguments.length;++t){var e=arguments[t];b(e),e.length>0&&(A===void 0?A=e:A+="/"+e)}return A===void 0?".":sA.normalize(A)},relative:function(A,t){if(b(A),b(t),A===t||(A=sA.resolve(A),t=sA.resolve(t),A===t))return"";for(var e=1;e<A.length&&A.charCodeAt(e)===47;++e);for(var n=A.length,r=n-e,s=1;s<t.length&&t.charCodeAt(s)===47;++s);for(var o=t.length,a=o-s,h=r<a?r:a,c=-1,l=0;l<=h;++l){if(l===h){if(a>h){if(t.charCodeAt(s+l)===47)return t.slice(s+l+1);if(l===0)return t.slice(s+l)}else r>h&&(A.charCodeAt(e+l)===47?c=l:l===0&&(c=0));break}var g=A.charCodeAt(e+l),u=t.charCodeAt(s+l);if(g!==u)break;g===47&&(c=l)}var m="";for(l=e+c+1;l<=n;++l)(l===n||A.charCodeAt(l)===47)&&(m.length===0?m+="..":m+="/..");return m.length>0?m+t.slice(s+c):(s+=c,t.charCodeAt(s)===47&&++s,t.slice(s))},_makeLong:function(A){return A},dirname:function(A){if(b(A),A.length===0)return".";for(var t=A.charCodeAt(0),e=t===47,n=-1,r=!0,s=A.length-1;s>=1;--s)if(t=A.charCodeAt(s),t===47){if(!r){n=s;break}}else r=!1;return n===-1?e?"/":".":e&&n===1?"//":A.slice(0,n)},basename:function(A,t){if(t!==void 0&&typeof t!="string")throw new TypeError('"ext" argument must be a string');b(A);var e=0,n=-1,r=!0,s;if(t!==void 0&&t.length>0&&t.length<=A.length){if(t.length===A.length&&t===A)return"";var o=t.length-1,a=-1;for(s=A.length-1;s>=0;--s){var h=A.charCodeAt(s);if(h===47){if(!r){e=s+1;break}}else a===-1&&(r=!1,a=s+1),o>=0&&(h===t.charCodeAt(o)?--o===-1&&(n=s):(o=-1,n=a))}return e===n?n=a:n===-1&&(n=A.length),A.slice(e,n)}else{for(s=A.length-1;s>=0;--s)if(A.charCodeAt(s)===47){if(!r){e=s+1;break}}else n===-1&&(r=!1,n=s+1);return n===-1?"":A.slice(e,n)}},extname:function(A){b(A);for(var t=-1,e=0,n=-1,r=!0,s=0,o=A.length-1;o>=0;--o){var a=A.charCodeAt(o);if(a===47){if(!r){e=o+1;break}continue}n===-1&&(r=!1,n=o+1),a===46?t===-1?t=o:s!==1&&(s=1):t!==-1&&(s=-1)}return t===-1||n===-1||s===0||s===1&&t===n-1&&t===e+1?"":A.slice(t,n)},format:function(A){if(A===null||typeof A!="object")throw new TypeError('The "pathObject" argument must be of type Object. Received type '+typeof A);return Bn("/",A)},parse:function(A){b(A);var t={root:"",dir:"",base:"",ext:"",name:""};if(A.length===0)return t;var e=A.charCodeAt(0),n=e===47,r;n?(t.root="/",r=1):r=0;for(var s=-1,o=0,a=-1,h=!0,c=A.length-1,l=0;c>=r;--c){if(e=A.charCodeAt(c),e===47){if(!h){o=c+1;break}continue}a===-1&&(h=!1,a=c+1),e===46?s===-1?s=c:l!==1&&(l=1):s!==-1&&(l=-1)}return s===-1||a===-1||l===0||l===1&&s===a-1&&s===o+1?a!==-1&&(o===0&&n?t.base=t.name=A.slice(1,a):t.base=t.name=A.slice(o,a)):(o===0&&n?(t.name=A.slice(1,s),t.base=A.slice(1,a)):(t.name=A.slice(o,s),t.base=A.slice(o,a)),t.ext=A.slice(s,a)),o>0?t.dir=A.slice(0,o-1):n&&(t.dir="/"),t},sep:"/",delimiter:":",win32:null,posix:null};sA.posix=sA;var je=sA;const En=i=>({frameLoaded:i.frameLoaded||(()=>{}),positionChanged:i.positionChanged||(()=>{}),tap:i.tap||(()=>!1),click:i.click||(()=>!1),zoom:i.zoom||(()=>{}),miscPointer:i.miscPointer||(()=>{}),customEvent:i.customEvent||(()=>{}),handleLocator:i.handleLocator||(()=>!1),textSelected:i.textSelected||(()=>{})});class nt extends ut{constructor(A,t,e,n=[],r=void 0){super(),this.pub=t,this.layout=nt.determineLayout(t),this.currentProgression=t.metadata.effectiveReadingProgression,this.container=A,this.listeners=En(e),this.currentLocation=r,n.length&&(this.positions=n)}static determineLayout(A){var e;const t=A.metadata.getPresentation();return(t==null?void 0:t.layout)==C.fixed||A.metadata.otherMetadata&&"http://openmangaformat.org/schema/1.0#version"in A.metadata.otherMetadata||((e=A.metadata.otherMetadata)==null?void 0:e.conformsTo)==="https://readium.org/webpub-manifest/profiles/divina"?C.fixed:C.reflowable}async load(){var A;(A=this.positions)!=null&&A.length||(this.positions=await this.pub.positionsFromManifest()),this.layout===C.fixed?(this.framePool=new Te(this.container,this.positions,this.pub),this.framePool.listener=(t,e)=>{this.eventListener(t,e)}):this.framePool=new pe(this.container,this.positions),this.currentLocation===void 0&&(this.currentLocation=this.positions[0]),await this.apply()}get _cframes(){return this.framePool.currentFrames}get pool(){return this.framePool}eventListener(A,t){var e,n,r,s,o,a;switch(A){case"_pong":this.listeners.frameLoaded(this._cframes[0].iframe.contentWindow),this.listeners.positionChanged(this.currentLocation);break;case"first_visible_locator":const h=SA.deserialize(t);if(!h)break;this.currentLocation=new SA({href:this.currentLocation.href,type:this.currentLocation.type,title:this.currentLocation.title,locations:h==null?void 0:h.locations,text:h==null?void 0:h.text}),this.listeners.positionChanged(this.currentLocation);break;case"text_selected":this.listeners.textSelected(t);break;case"click":case"tap":const c=t;if(c.interactiveElement){const l=new DOMParser().parseFromString(c.interactiveElement,"text/html").body.children[0];if(l.nodeType===l.ELEMENT_NODE&&l.nodeName==="A"&&l.hasAttribute("href")){const g=(e=l.attributes.getNamedItem("href"))==null?void 0:e.value;if(g.startsWith("#"))this.go(this.currentLocation.copyWithLocations({fragments:[g.substring(1)]}),!1,()=>{});else if(g.startsWith("http://")||g.startsWith("https://")||g.startsWith("mailto:")||g.startsWith("tel:"))this.listeners.handleLocator(new J({href:g}).locator);else try{this.goLink(new J({href:je.join(je.dirname(this.currentLocation.href),g)}),!1,()=>{})}catch(u){console.warn(`Couldn't go to link for ${g}: ${u}`),this.listeners.handleLocator(new J({href:g}).locator)}}else console.log("Clicked on",l)}else{if(this.layout===C.fixed&&this.framePool.doNotDisturb&&(c.doNotDisturb=!0),this.layout===C.fixed&&(this.currentProgression===F.rtl||this.currentProgression===F.ltr)&&this.framePool.currentFrames.length>1){const u=this.framePool.currentFrames;c.targetFrameSrc===((n=u[this.currentProgression===F.rtl?0:1])==null?void 0:n.source)&&(c.x+=(((s=(r=u[this.currentProgression===F.rtl?1:0])==null?void 0:r.iframe.contentWindow)==null?void 0:s.innerWidth)??0)*window.devicePixelRatio)}if(A==="click"?this.listeners.click(c):this.listeners.tap(c))break;if(this.currentProgression===F.ttb||this.currentProgression===F.btt)return;const g=(this._cframes.length===2?this._cframes[0].window.innerWidth+this._cframes[1].window.innerWidth:this._cframes[0].window.innerWidth)*window.devicePixelRatio/4;c.x>=g&&c.x<=g*3&&this.listeners.miscPointer(1),c.x<g?this.goLeft(!1,()=>{}):c.x>g*3&&this.goRight(!1,()=>{})}break;case"tap_more":this.listeners.miscPointer(t);break;case"no_more":this.changeResource(1);break;case"no_less":this.changeResource(-1);break;case"swipe":break;case"zoom":this.listeners.zoom(t);break;case"progress":this.syncLocation(t);break;case"log":console.log((a=(o=this._cframes[0])==null?void 0:o.source)==null?void 0:a.split("/")[3],...t);break;default:this.listeners.customEvent(A,t);break}}determineModules(){let A=Array.from(tt.keys());return this.layout===C.fixed?A.filter(t=>on.includes(t)):(A=A.filter(t=>an.includes(t)),this.readingProgression===F.ttb||this.readingProgression===F.btt?A=A.filter(t=>t!=="column_snapper"):A=A.filter(t=>t!=="scroll_snapper"),A)}attachListener(){const A=this._cframes.filter(t=>!!t);if(A.length===0)throw Error("no cframe to attach listener to");A.forEach(t=>{t.msg&&(t.msg.listener=(e,n)=>{this.eventListener(e,n)})})}async apply(){if(await this.framePool.update(this.pub,this.currentLocator,this.determineModules()),this.attachListener(),this.pub.readingOrder.findIndexWithHref(this.currentLocation.href)<0)throw Error("Link for "+this.currentLocation.href+" not found!")}async destroy(){var A;await((A=this.framePool)==null?void 0:A.destroy())}async changeResource(A){var n,r;if(A===0)return!1;if(this.layout===C.fixed){const s=this.framePool,o=s.currentNumbers[0];if(A===1){if(!s.next(s.perPage))return!1}else if(A===-1){if(!s.prev(s.perPage))return!1}else throw Error("Invalid relative value for FXL");const a=s.currentNumbers[0];if(o>a){for(let h=this.positions.length-1;h>=0;h--)if(this.positions[h].href===this.pub.readingOrder.items[a-1].href){this.currentLocation=this.positions[h].copyWithLocations({progression:.999999999999});break}}else if(o<a){for(let h=0;h<this.positions.length;h++)if(this.positions[h].href===this.pub.readingOrder.items[a-1].href){this.currentLocation=this.positions[h];break}}return await this.apply(),!0}const t=this.pub.readingOrder.findIndexWithHref(this.currentLocation.href),e=Math.max(0,Math.min(this.pub.readingOrder.items.length-1,t+A));if(e===t)return(r=(n=this._cframes[0])==null?void 0:n.msg)==null||r.send("shake",void 0,async s=>{}),!1;if(t>e){for(let s=this.positions.length-1;s>=0;s--)if(this.positions[s].href===this.pub.readingOrder.items[e].href){this.currentLocation=this.positions[s].copyWithLocations({progression:.999999999999});break}}else for(let s=0;s<this.positions.length;s++)if(this.positions[s].href===this.pub.readingOrder.items[e].href){this.currentLocation=this.positions[s];break}return await this.apply(),!0}findLastPositionInProgressionRange(A,t){const e=A.findLastIndex(n=>{const r=n.locations.progression;return!!(r&&r>Math.min(...t)&&r<=Math.max(...t))});return e!==-1?A[e]:void 0}findNearestPositions(A){const t=this.positions.filter(r=>r.href===this.currentLocation.href);let e=this.currentLocation,n;return t.some((r,s)=>{const o=r.locations.progression??0;if(A.progress<=o){e=r;const a=t.splice(s+1,t.length),h=[A.progress,A.progress+A.reference];return n=this.findLastPositionInProgressionRange(a,h),!0}else return!1}),{first:e,last:n}}async syncLocation(A){const t=this.findNearestPositions(A);this.currentLocation=t.first.copyWithLocations({progression:A.progress}),this.lastLocationInView=t.last,this.listeners.positionChanged(this.currentLocation),await this.framePool.update(this.pub,this.currentLocation,this.determineModules())}goBackward(A,t){var e,n;this.layout===C.fixed?(this.changeResource(-1),t(!0)):(n=(e=this._cframes[0])==null?void 0:e.msg)==null||n.send("go_prev",void 0,async r=>{t(r?!0:await this.changeResource(-1))})}goForward(A,t){var e,n;this.layout===C.fixed?(this.changeResource(1),t(!0)):(n=(e=this._cframes[0])==null?void 0:e.msg)==null||n.send("go_next",void 0,async r=>{t(r?!0:await this.changeResource(1))})}get currentLocator(){return this.currentLocation}get currentPositionNumbers(){var A,t;return this.layout===C.fixed?this.framePool.currentNumbers:[((A=this.currentLocator)==null?void 0:A.locations.position)??0,...(t=this.lastLocationInView)!=null&&t.locations.position?[this.lastLocationInView.locations.position]:[]]}get readingProgression(){return this.currentProgression}async setReadingProgression(A){this.currentProgression!==A&&(this.currentProgression=A,await this.framePool.update(this.pub,this.currentLocator,this.determineModules(),!0),this.attachListener())}get publication(){return this.pub}async loadLocator(A,t){var a,h;let e=!1,n=typeof A.locations.getCssSelector=="function"&&A.locations.getCssSelector();if((a=A.text)!=null&&a.highlight?e=await new Promise((c,l)=>{var g,u;this._cframes[0].msg.send("go_text",n?[(g=A.text)==null?void 0:g.serialize(),n]:(u=A.text)==null?void 0:u.serialize(),m=>c(m))}):n&&(e=await new Promise((c,l)=>{this._cframes[0].msg.send("go_text",["",n],g=>c(g))})),e){t(e);return}const r=typeof A.locations.htmlId=="function"&&A.locations.htmlId();if(r&&(e=await new Promise((c,l)=>{this._cframes[0].msg.send("go_id",r,g=>c(g))})),e){t(e);return}const s=(h=A==null?void 0:A.locations)==null?void 0:h.progression;s&&s>0?e=await new Promise((c,l)=>{this._cframes[0].msg.send("go_progression",s,g=>c(g))}):e=!0,t(e)}go(A,t,e){const n=A.href.split("#")[0];let r=this.pub.readingOrder.findWithHref(n);if(!r)return e(this.listeners.handleLocator(A));this.currentLocation=this.positions.find(s=>s.href===r.href),this.apply().then(()=>this.loadLocator(A,s=>e(s))).then(()=>{this.attachListener()})}goLink(A,t,e){return this.go(A.locator,t,e)}}class fn{constructor(A){var t;this.sourceNode=null,this.listeners={},this.isMutedValue=!1,this.isPlayingValue=!1,this.isPausedValue=!1,this.isLoadingValue=!1,this.isLoadedValue=!1,this.isEndedValue=!1,this.playback=A.playback,this.audioContext=A.audioContext,this.gainNode=(t=this.audioContext)==null?void 0:t.createGain(),this.setVolume(this.playback.state.volume),this.mediaElement=document.createElement("audio"),this.mediaElement.crossOrigin="use-credentials",this.mediaElement.addEventListener("canplaythrough",this.onCanPlayThrough.bind(this)),this.mediaElement.addEventListener("timeupdate",this.onTimeUpdate.bind(this)),this.mediaElement.addEventListener("error",this.onError.bind(this)),this.mediaElement.addEventListener("ended",this.onEnded.bind(this)),this.mediaElement.currentTime=this.playback.state.currentTime}on(A,t){this.listeners[A]||(this.listeners[A]=[]),this.listeners[A].push(t)}off(A,t){this.listeners[A]&&(this.listeners[A]=this.listeners[A].filter(e=>e!==t))}loadAudio(A){this.isLoadingValue=!0,this.mediaElement.src=A,this.mediaElement.load(),this.sourceNode||(this.sourceNode=new MediaElementAudioSourceNode(this.audioContext,{mediaElement:this.mediaElement}),this.sourceNode.connect(this.gainNode),this.gainNode.connect(this.audioContext.destination))}async ensureAudioContextRunning(){this.audioContext.state==="suspended"&&await this.audioContext.resume()}onTimeUpdate(){this.emit("timeupdate",this.mediaElement.currentTime)}onCanPlayThrough(){this.isLoadingValue=!1,this.isLoadedValue=!0,this.emit("canplaythrough",null)}onError(){console.error("Error loading media element"),this.emit("error",this.mediaElement.error)}onEnded(){this.isPlayingValue=!1,this.isPausedValue=!1,this.isEndedValue=!0,this.emit("ended",null)}emit(A,t){this.listeners[A]&&this.listeners[A].forEach(e=>e(t))}async playLocator(A,t){}async play(){if(await this.ensureAudioContextRunning(),this.isPlayingValue){this.stop(),console.error("Audio is already playing");return}try{await this.mediaElement.play(),this.isPlayingValue=!0,this.isPausedValue=!1}catch(A){console.error("error trying to play media element",A)}}pause(){this.mediaElement.pause(),this.isPlayingValue=!1,this.isPausedValue=!0}stop(){this.mediaElement.pause(),this.mediaElement.currentTime=0,this.isPlayingValue=!1,this.isPausedValue=!1}setVolume(A){if(A<0){this.gainNode.gain.value=0,this.isMutedValue=!0;return}if(A>1){this.setVolume(A/100);return}this.gainNode.gain.value=A}skip(A){if(!this.mediaElement){console.error("Audio not loaded");return}const t=this.mediaElement.currentTime+A;t<0?this.mediaElement.currentTime=0:t>this.mediaElement.duration?this.mediaElement.currentTime=this.mediaElement.duration:this.mediaElement.currentTime=t}currentTime(){return this.mediaElement.currentTime}duration(){return this.mediaElement.duration}isPlaying(){return this.isPlayingValue}isPaused(){return this.isPausedValue}isStopped(){return!1}isLoading(){return this.isLoadingValue}isLoaded(){return this.isLoadedValue}isEnded(){return this.isEndedValue}isMuted(){return this.isMutedValue}}Q.EpubNavigator=nt,Q.FXLCoordinator=ye,Q.FXLFrameManager=we,Q.FXLFramePoolManager=Te,Q.FXLPeripherals=Ye,Q.FXLSpreader=Ce,Q.FrameComms=et,Q.FrameManager=Ee,Q.FramePoolManager=pe,Q.HorizontalThird=Fe,Q.Navigator=Mt,Q.VerticalThird=Ue,Q.VisualNavigator=ut,Q.WebAudioEngine=fn,Q.sML=NA,Object.defineProperty(Q,Symbol.toStringTag,{value:"Module"})});