@readium/shared/dist/index.umd.cjs

Shared models to be used across other Readium projects and implementations in Typescript

(function(l,L){typeof exports=="object"&&typeof module<"u"?L(exports):typeof define=="function"&&define.amd?define(["exports"],L):(l=typeof globalThis<"u"?globalThis:l||self,L(l.shared={}))})(this,function(l){"use strict";class L{close(){}links(){return[]}get(t){throw Error("This is an empty fetcher")}}class Oe{constructor(t,e){this.client=t||window.fetch.bind(window),this.baseUrl=e}links(){return[]}get(t){const e=t.toURL(this.baseUrl);if(e===void 0)throw Error(`Invalid HREF: ${t.href}`);return new kt(this.client,t,e)}close(){}}class kt{constructor(t,e,r){this.client=t||window.fetch.bind(window),this._link=e,this.url=r}async headResponse(){if(this._headResponse)return this._headResponse;const t=await this.client(this.url,{method:"HEAD"});if(!t.ok)throw new Error(`http HEAD request for ${this.url} failed with HTTP status code ${t.status}`);return this._headResponse=t,t}close(){}async link(){return this._link}async read(t){if(t)throw new Error("http read range not implemented!");const e=await this.client(this.url);if(!e.ok)throw new Error(`http GET request for ${this.url} failed with HTTP status code ${e.status}`);return new Uint8Array(await e.arrayBuffer())}async length(){const e=(await this.headResponse()).headers.get("content-length");if(e===null||e==="")throw new Error("length for resource unavailable");return parseInt(e)}async readAsJSON(){const t=await this.client(this.url);if(!t.ok)throw new Error(`http GET request for ${this.url} failed with HTTP status code ${t.status}`);return await t.json()}async readAsString(){const t=await this.client(this.url);if(!t.ok)throw new Error(`http GET request for ${this.url} failed with HTTP status code ${t.status}`);return await t.text()}async readAsXML(){const t=await this.client(this.url);if(!t.ok)throw new Error(`http GET request for ${this.url} failed with HTTP status code ${t.status}`);return new DOMParser().parseFromString(await t.text(),"application/xml")}}class Ne{constructor(t,e){this.start=t,this.endInclusive=e}}class Pe{readAsString(){return this.read().then(t=>t===void 0?t:new TextDecoder().decode(t))}readAsJSON(){return this.readAsString().then(t=>t===void 0?t:JSON.parse(t))}readAsXML(){return this.readAsString().then(t=>t===void 0?t:new DOMParser().parseFromString(t,"text/xml"))}}class j{constructor(t){this.algorithm=t.algorithm,this.compression=t.compression,this.originalLength=t.originalLength,this.profile=t.profile,this.scheme=t.scheme}static deserialize(t){if(t&&t.algorithm)return new j({algorithm:t.algorithm,compression:t.compression,originalLength:t.originalLength,profile:t.profile,scheme:t.scheme})}serialize(){const t={algorithm:this.algorithm};return this.compression!==void 0&&(t.compression=this.compression),this.originalLength!==void 0&&(t.originalLength=this.originalLength),this.profile!==void 0&&(t.profile=this.profile),this.scheme!==void 0&&(t.scheme=this.scheme),t}}class E{constructor(t){this.otherProperties=t}static deserialize(t){if(t)return new E(t)}serialize(){return this.otherProperties}add(t){const e=Object.assign({},this.otherProperties);for(const r in t)e[r]=t[r];return new E(e)}}Object.defineProperty(E.prototype,"encryption",{get:function(){return j.deserialize(this.otherProperties.encrypted)}});var mt=(i=>(i.fixed="fixed",i.reflowable="reflowable",i))(mt||{}),Dt=(i=>(i.auto="auto",i.landscape="landscape",i.portrait="portrait",i))(Dt||{}),Ut=(i=>(i.auto="auto",i.clipped="clipped",i.paginated="paginated",i.scrolled="scrolled",i))(Ut||{}),M=(i=>(i.left="left",i.right="right",i.center="center",i))(M||{}),Bt=(i=>(i.auto="auto",i.both="both",i.none="none",i.landscape="landscape",i))(Bt||{}),Ft=(i=>(i.contain="contain",i.cover="cover",i.width="width",i.height="height",i))(Ft||{});class ${constructor(t){this.clipped=t.clipped,this.fit=t.fit,this.orientation=t.orientation,this.spread=t.spread,this.layout=t.layout,this.continuous=t.continuous,this.overflow=t.overflow}static deserialize(t){if(t)return new $({clipped:t.clipped,continuous:t.continuous,fit:t.fit,orientation:t.orientation,overflow:t.overflow,spread:t.spread,layout:t.layout})}serialize(){const t={};return this.clipped!==void 0&&(t.clipped=this.clipped),this.continuous!==void 0&&(t.continuous=this.continuous),this.fit!==void 0&&(t.fit=this.fit),this.orientation!==void 0&&(t.orientation=this.orientation),this.overflow!==void 0&&(t.overflow=this.overflow),this.spread!==void 0&&(t.spread=this.spread),this.layout!==void 0&&(t.layout=this.layout),t}}$.prototype.layoutOf=function(i){var t;return((t=i.properties)==null?void 0:t.getLayout())||this.layout||mt.reflowable},E.prototype.getContains=function(){return new Set(this.otherProperties.contains||[])},E.prototype.getLayout=function(){return this.otherProperties.layout};class a{constructor(t){let e,r,n=t.mediaType.replace(/\s/g,"").split(";");const s=n[0].split("/");if(s.length===2){if(e=s[0].toLowerCase().trim(),r=s[1].toLowerCase().trim(),e.length===0||r.length===0)throw new Error("Invalid media type")}else throw new Error("Invalid media type");const o={};for(let d=1;d<n.length;d++){const g=n[d].split("=");if(g.length===2){const z=g[0].toLocaleLowerCase(),_=z==="charset"?g[1].toUpperCase():g[1];o[z]=_}}const c={},h=Object.keys(o);h.sort((d,g)=>d.localeCompare(g)),h.forEach(d=>c[d]=o[d]);let u="";for(const d in c){const g=c[d];u+=`;${d}=${g}`}const f=`${e}/${r}${u}`,p=c.encoding;this.string=f,this.type=e,this.subtype=r,this.parameters=c,this.encoding=p,this.name=t.name,this.fileExtension=t.fileExtension}static parse(t){return new a(t)}get structuredSyntaxSuffix(){const t=this.subtype.split("+");return t.length>1?`+${t[t.length-1]}`:void 0}get charset(){return this.parameters.charset}contains(t){const e=typeof t=="string"?a.parse({mediaType:t}):t;if(!((this.type==="*"||this.type===e.type)&&(this.subtype==="*"||this.subtype===e.subtype)))return!1;const r=new Set(Object.entries(this.parameters).map(([s,o])=>`${s}=${o}`)),n=new Set(Object.entries(e.parameters).map(([s,o])=>`${s}=${o}`));for(const s of Array.from(r.values()))if(!n.has(s))return!1;return!0}matches(t){const e=typeof t=="string"?a.parse({mediaType:t}):t;return this.contains(e)||e.contains(this)}matchesAny(...t){for(const e of t)if(this.matches(e))return!0;return!1}equals(t){return this.string===t.string}get isZIP(){return this.matchesAny(a.ZIP,a.LCP_PROTECTED_AUDIOBOOK,a.LCP_PROTECTED_PDF)||this.structuredSyntaxSuffix==="+zip"}get isJSON(){return this.matchesAny(a.JSON)||this.structuredSyntaxSuffix==="+json"}get isOPDS(){return this.matchesAny(a.OPDS1,a.OPDS1_ENTRY,a.OPDS2,a.OPDS2_PUBLICATION,a.OPDS_AUTHENTICATION)||this.structuredSyntaxSuffix==="+json"}get isHTML(){return this.matchesAny(a.HTML,a.XHTML)}get isBitmap(){return this.matchesAny(a.BMP,a.GIF,a.JPEG,a.PNG,a.TIFF,a.WEBP)}get isAudio(){return this.type==="audio"}get isVideo(){return this.type==="video"}get isRWPM(){return this.matchesAny(a.READIUM_AUDIOBOOK_MANIFEST,a.DIVINA_MANIFEST,a.READIUM_WEBPUB_MANIFEST)}get isPublication(){return this.matchesAny(a.READIUM_AUDIOBOOK,a.READIUM_AUDIOBOOK_MANIFEST,a.CBZ,a.DIVINA,a.DIVINA_MANIFEST,a.EPUB,a.LCP_PROTECTED_AUDIOBOOK,a.LCP_PROTECTED_PDF,a.LPF,a.PDF,a.W3C_WPUB_MANIFEST,a.READIUM_WEBPUB,a.READIUM_WEBPUB_MANIFEST,a.ZAB)}static get AAC(){return a.parse({mediaType:"audio/aac",fileExtension:"aac"})}static get ACSM(){return a.parse({mediaType:"application/vnd.adobe.adept+xml",name:"Adobe Content Server Message",fileExtension:"acsm"})}static get AIFF(){return a.parse({mediaType:"audio/aiff",fileExtension:"aiff"})}static get AVI(){return a.parse({mediaType:"video/x-msvideo",fileExtension:"avi"})}static get BINARY(){return a.parse({mediaType:"application/octet-stream"})}static get BMP(){return a.parse({mediaType:"image/bmp",fileExtension:"bmp"})}static get CBZ(){return a.parse({mediaType:"application/vnd.comicbook+zip",name:"Comic Book Archive",fileExtension:"cbz"})}static get CSS(){return a.parse({mediaType:"text/css",fileExtension:"css"})}static get DIVINA(){return a.parse({mediaType:"application/divina+zip",name:"Digital Visual Narratives",fileExtension:"divina"})}static get DIVINA_MANIFEST(){return a.parse({mediaType:"application/divina+json",name:"Digital Visual Narratives",fileExtension:"json"})}static get EPUB(){return a.parse({mediaType:"application/epub+zip",name:"EPUB",fileExtension:"epub"})}static get GIF(){return a.parse({mediaType:"image/gif",fileExtension:"gif"})}static get GZ(){return a.parse({mediaType:"application/gzip",fileExtension:"gz"})}static get HTML(){return a.parse({mediaType:"text/html",fileExtension:"html"})}static get JAVASCRIPT(){return a.parse({mediaType:"text/javascript",fileExtension:"js"})}static get JPEG(){return a.parse({mediaType:"image/jpeg",fileExtension:"jpeg"})}static get JSON(){return a.parse({mediaType:"application/json"})}static get LCP_LICENSE_DOCUMENT(){return a.parse({mediaType:"application/vnd.readium.lcp.license.v1.0+json",name:"LCP License",fileExtension:"lcpl"})}static get LCP_PROTECTED_AUDIOBOOK(){return a.parse({mediaType:"application/audiobook+lcp",name:"LCP Protected Audiobook",fileExtension:"lcpa"})}static get LCP_PROTECTED_PDF(){return a.parse({mediaType:"application/pdf+lcp",name:"LCP Protected PDF",fileExtension:"lcpdf"})}static get LCP_STATUS_DOCUMENT(){return a.parse({mediaType:"application/vnd.readium.license.status.v1.0+json"})}static get LPF(){return a.parse({mediaType:"application/lpf+zip",fileExtension:"lpf"})}static get MP3(){return a.parse({mediaType:"audio/mpeg",fileExtension:"mp3"})}static get MPEG(){return a.parse({mediaType:"video/mpeg",fileExtension:"mpeg"})}static get NCX(){return a.parse({mediaType:"application/x-dtbncx+xml",fileExtension:"ncx"})}static get OGG(){return a.parse({mediaType:"audio/ogg",fileExtension:"oga"})}static get OGV(){return a.parse({mediaType:"video/ogg",fileExtension:"ogv"})}static get OPDS1(){return a.parse({mediaType:"application/atom+xml;profile=opds-catalog"})}static get OPDS1_ENTRY(){return a.parse({mediaType:"application/atom+xml;type=entry;profile=opds-catalog"})}static get OPDS2(){return a.parse({mediaType:"application/opds+json"})}static get OPDS2_PUBLICATION(){return a.parse({mediaType:"application/opds-publication+json"})}static get OPDS_AUTHENTICATION(){return a.parse({mediaType:"application/opds-authentication+json"})}static get OPUS(){return a.parse({mediaType:"audio/opus",fileExtension:"opus"})}static get OTF(){return a.parse({mediaType:"font/otf",fileExtension:"otf"})}static get PDF(){return a.parse({mediaType:"application/pdf",name:"PDF",fileExtension:"pdf"})}static get PNG(){return a.parse({mediaType:"image/png",fileExtension:"png"})}static get READIUM_AUDIOBOOK(){return a.parse({mediaType:"application/audiobook+zip",name:"Readium Audiobook",fileExtension:"audiobook"})}static get READIUM_AUDIOBOOK_MANIFEST(){return a.parse({mediaType:"application/audiobook+json",name:"Readium Audiobook",fileExtension:"json"})}static get READIUM_CONTENT_DOCUMENT(){return a.parse({mediaType:"application/vnd.readium.content+json",name:"Readium Content Document",fileExtension:"json"})}static get READIUM_GUIDED_NAVIGATION_DOCUMENT(){return a.parse({mediaType:"application/guided-navigation+json",name:"Readium Guided Navigation Document",fileExtension:"json"})}static get READIUM_POSITION_LIST(){return a.parse({mediaType:"application/vnd.readium.position-list+json",name:"Readium Position List",fileExtension:"json"})}static get READIUM_WEBPUB(){return a.parse({mediaType:"application/webpub+zip",name:"Readium Web Publication",fileExtension:"webpub"})}static get READIUM_WEBPUB_MANIFEST(){return a.parse({mediaType:"application/webpub+json",name:"Readium Web Publication",fileExtension:"json"})}static get SMIL(){return a.parse({mediaType:"application/smil+xml",fileExtension:"smil"})}static get SVG(){return a.parse({mediaType:"image/svg+xml",fileExtension:"svg"})}static get TEXT(){return a.parse({mediaType:"text/plain",fileExtension:"txt"})}static get TIFF(){return a.parse({mediaType:"image/tiff",fileExtension:"tiff"})}static get TTF(){return a.parse({mediaType:"font/ttf",fileExtension:"ttf"})}static get W3C_WPUB_MANIFEST(){return a.parse({mediaType:"application/x.readium.w3c.wpub+json",name:"Web Publication",fileExtension:"json"})}static get WAV(){return a.parse({mediaType:"audio/wav",fileExtension:"wav"})}static get WEBM_AUDIO(){return a.parse({mediaType:"audio/webm",fileExtension:"webm"})}static get WEBM_VIDEO(){return a.parse({mediaType:"video/webm",fileExtension:"webm"})}static get WEBP(){return a.parse({mediaType:"image/webp",fileExtension:"webp"})}static get WOFF(){return a.parse({mediaType:"font/woff",fileExtension:"woff"})}static get WOFF2(){return a.parse({mediaType:"font/woff2",fileExtension:"woff2"})}static get XHTML(){return a.parse({mediaType:"application/xhtml+xml",fileExtension:"xhtml"})}static get XML(){return a.parse({mediaType:"application/xml",fileExtension:"xml"})}static get ZAB(){return a.parse({mediaType:"application/x.readium.zab+zip",name:"Zipped Audio Book",fileExtension:"zab"})}static get ZIP(){return a.parse({mediaType:"application/zip",fileExtension:"zip"})}}class G{constructor(t){this.uri=t,this.parameters=this.getParameters(t)}getParameters(t){const e=/\{\??([^}]+)\}/g,r=t.match(e);return r?new Set(r.join(",").replace(e,"$1").split(",").map(n=>n.trim())):new Set}expand(t){const e=n=>n.split(",").map(s=>{const o=t[s];return o?encodeURIComponent(o):""}).join(","),r=n=>"?"+n.split(",").map(s=>{const o=s.split("=")[0],c=t[o];return c?`${o}=${encodeURIComponent(c)}`:""}).join("&");return this.uri.replace(/\{(\??)([^}]+)\}/g,(...n)=>n[1]?r(n[2]):e(n[2]))}}function Wt(i){return i&&i instanceof Array?i:void 0}function C(i){return i&&typeof i=="string"?[i]:Wt(i)}function H(i){return typeof i=="string"?new Date(i):void 0}function R(i){return isNaN(i)?void 0:i}function A(i){return R(i)!==void 0&&Math.sign(i)>=0?i:void 0}function tt(i){const t=new Array;return i.forEach(e=>t.push(e)),t}class b{constructor(t){this.fragments=t.fragments?t.fragments:new Array,this.progression=t.progression,this.totalProgression=t.totalProgression,this.position=t.position,this.otherLocations=t.otherLocations}static deserialize(t){if(!t)return;const e=R(t.progression),r=R(t.totalProgression),n=R(t.position),s=new Map,o=new Set(["fragment","fragments","progression","totalProgression","position"]);return Object.entries(t).forEach(([c,h])=>{o.has(c)||s.set(c,h)}),new b({fragments:C(t.fragments||t.fragment),progression:e!==void 0&&e>=0&&e<=1?e:void 0,totalProgression:r!==void 0&&r>=0&&r<=1?r:void 0,position:n!==void 0&&n>0?n:void 0,otherLocations:s.size===0?void 0:s})}serialize(){const t={};return this.fragments&&(t.fragments=this.fragments),this.progression!==void 0&&(t.progression=this.progression),this.totalProgression!==void 0&&(t.totalProgression=this.totalProgression),this.position!==void 0&&(t.position=this.position),this.otherLocations&&this.otherLocations.forEach((e,r)=>t[r]=e),t}}class k{constructor(t){this.after=t.after,this.before=t.before,this.highlight=t.highlight}static deserialize(t){if(t)return new k({after:t.after,before:t.before,highlight:t.highlight})}serialize(){const t={};return this.after!==void 0&&(t.after=this.after),this.before!==void 0&&(t.before=this.before),this.highlight!==void 0&&(t.highlight=this.highlight),t}}class S{constructor(t){this.href=t.href,this.type=t.type,this.title=t.title,this.locations=t.locations?t.locations:new b({}),this.text=t.text}static deserialize(t){if(t&&t.href&&t.type)return new S({href:t.href,type:t.type,title:t.title,locations:b.deserialize(t.locations),text:k.deserialize(t.text)})}serialize(){const t={href:this.href,type:this.type};return this.title!==void 0&&(t.title=this.title),this.locations&&(t.locations=this.locations.serialize()),this.text&&(t.text=this.text.serialize()),t}copyWithLocations(t){return new S({href:this.href,type:this.type,title:this.title,text:this.text,locations:new b({...this.locations,...t})})}}class I{constructor(t){this.href=t.href,this.templated=t.templated,this.type=t.type,this.title=t.title,this.rels=t.rels,this.properties=t.properties,this.height=t.height,this.width=t.width,this.duration=t.duration,this.bitrate=t.bitrate,this.languages=t.languages,this.alternates=t.alternates,this.children=t.children}static deserialize(t){if(t&&t.href&&typeof t.href=="string")return new I({href:t.href,templated:t.templated,type:t.type,title:t.title,rels:t.rel?t.rel instanceof Array?new Set(t.rel):new Set([t.rel]):void 0,properties:E.deserialize(t.properties),height:A(t.height),width:A(t.width),duration:A(t.duration),bitrate:A(t.bitrate),languages:C(t.language),alternates:y.deserialize(t.alternate),children:y.deserialize(t.children)})}serialize(){const t={href:this.href};return this.templated!==void 0&&(t.templated=this.templated),this.type!==void 0&&(t.type=this.type),this.title!==void 0&&(t.title=this.title),this.rels&&(t.rel=tt(this.rels)),this.properties&&(t.properties=this.properties.serialize()),this.height!==void 0&&(t.height=this.height),this.width!==void 0&&(t.width=this.width),this.duration!==void 0&&(t.duration=this.duration),this.bitrate!==void 0&&(t.bitrate=this.bitrate),this.languages&&(t.language=this.languages),this.alternates&&(t.alternate=this.alternates.serialize()),this.children&&(t.children=this.children.serialize()),t}get mediaType(){return this.type!==void 0?a.parse({mediaType:this.type}):a.BINARY}toURL(t){const e=this.href.replace(/^(\/)/,"");if(e.length===0)return;let r=t||"/";return r.startsWith("/")&&(r="file://"+r),new URL(e,r).href.replace(/^(file:\/\/)/,"")}get templateParameters(){return this.templated?new G(this.href).parameters:new Set}expandTemplate(t){return new I({href:new G(this.href).expand(t),templated:!1})}addProperties(t){var r;const e=I.deserialize(this.serialize());return e.properties=e.properties?(r=e.properties)==null?void 0:r.add(t):new E(t),e}get locator(){let t=this.href.split("#");return new S({href:t.length>0&&t[0]!==void 0?t[0]:this.href,type:this.type??"",title:this.title,locations:new b({fragments:t.length>1&&t[1]!==void 0?[t[1]]:[]})})}}class y{constructor(t){this.items=t}static deserialize(t){if(t&&t instanceof Array)return new y(t.map(e=>I.deserialize(e)).filter(e=>e!==void 0))}serialize(){return this.items.map(t=>t.serialize())}findWithRel(t){const e=r=>r.rels&&r.rels.has(t);return this.items.find(e)}filterByRel(t){const e=r=>r.rels&&r.rels.has(t);return this.items.filter(e)}findWithHref(t){const e=r=>r.href===t;return this.items.find(e)}findIndexWithHref(t){const e=r=>r.href===t;return this.items.findIndex(e)}findWithMediaType(t){const e=r=>r.mediaType.matches(t);return this.items.find(e)}filterByMediaType(t){const e=r=>r.mediaType.matches(t);return this.items.filter(e)}filterByMediaTypes(t){const e=r=>{for(const n of t)if(r.mediaType.matches(n))return!0;return!1};return this.items.filter(e)}everyIsAudio(){const t=e=>e.mediaType.isAudio;return this.items.length>0&&this.items.every(t)}everyIsBitmap(){const t=e=>e.mediaType.isBitmap;return this.items.length>0&&this.items.every(t)}everyIsHTML(){const t=e=>e.mediaType.isHTML;return this.items.length>0&&this.items.every(t)}everyIsVideo(){const t=e=>e.mediaType.isVideo;return this.items.length>0&&this.items.every(t)}everyMatchesMediaType(t){return Array.isArray(t)?this.items.length>0&&this.items.every(e=>{for(const r of t)return e.mediaType.matches(r);return!1}):this.items.length>0&&this.items.every(e=>e.mediaType.matches(t))}filterLinksHasType(){return this.items.filter(t=>t.type)}}class et{constructor(t){this.links=t.links,this.guided=t.guided}static deserialize(t){if(t)return new et({links:y.deserialize(t.links),guided:D.deserializeArray(t.guided)})}serialize(){const t={};return this.links!==void 0&&(t.links=this.links.serialize()),this.guided!==void 0&&(t.guided=this.guided.map(e=>e.serialize())),t}}class D{constructor(t){this.audioref=t.audioref,this.children=t.children,this.imgref=t.imgref,this.role=t.role,this.text=t.text,this.textref=t.textref}static deserialize(t){if(t)return new D({audioref:t.audioref,children:D.deserializeArray(t.children),imgref:t.imgref,role:t.role?new Set(C(t.role)):void 0,text:t.text,textref:t.textref})}static deserializeArray(t){if(t instanceof Array)return t.map(e=>D.deserialize(e)).filter(e=>e!==void 0)}serialize(){const t={};return this.audioref!==void 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0&&(t.identifier=this.identifier),this.subtitle&&(t.subtitle=this.subtitle.serialize()),this.sortAs&&(t.sortAs=this.sortAs.serialize()),this.editors&&(t.editor=this.editors.serialize()),this.artists&&(t.artist=this.artists.serialize()),this.authors&&(t.author=this.authors.serialize()),this.colorists&&(t.colorist=this.colorists.serialize()),this.contributors&&(t.contributor=this.contributors.serialize()),this.illustrators&&(t.illustrator=this.illustrators.serialize()),this.letterers&&(t.letterer=this.letterers.serialize()),this.narrators&&(t.narrator=this.narrators.serialize()),this.pencilers&&(t.penciler=this.pencilers.serialize()),this.translators&&(t.translator=this.translators.serialize()),this.inkers&&(t.inker=this.inkers.serialize()),this.languages&&(t.language=this.languages),this.description!==void 0&&(t.description=this.description),this.publishers&&(t.publisher=this.publishers.serialize()),this.imprints&&(t.imprint=this.imprints.serialize()),this.published!==void 0&&(t.published=this.published.toISOString()),this.modified!==void 0&&(t.modified=this.modified.toISOString()),this.subjects&&(t.subject=this.subjects.serialize()),this.belongsTo&&(t.belongsTo=this.belongsTo.serialize()),this.readingProgression&&(t.readingProgression=this.readingProgression),this.duration!==void 0&&(t.duration=this.duration),this.numberOfPages!==void 0&&(t.numberOfPages=this.numberOfPages),this.otherMetadata){const e=this.otherMetadata;Object.keys(e).forEach(r=>t[r]=e[r])}return t}get effectiveReadingProgression(){var r;if(this.readingProgression&&this.readingProgression!==O.auto)return this.readingProgression;if(((r=this.languages)==null?void 0:r.length)!==1)return O.ltr;const t=this.languages[0].toLowerCase();if(t==="zh-hant"||t==="zh-tw")return O.rtl;switch(t.split("-")[0]){case"ar":return O.rtl;case"fa":return O.rtl;case"he":return O.rtl;default:return O.ltr}}};Kt.mappedProperties=["title","@type","identifier","subtitle","sortAs","artist","author","colorist","contributor","editor","illustrator","inker","letterer","narrator","penciler","translator","language","description","publisher","imprint","published","modified","subject","belongsTo","readingProgression","duration","numberOfPages"];let At=Kt;At.prototype.getPresentation=function(){var t,e;const i=((t=this.otherMetadata)==null?void 0:t.presentation)||((e=this.otherMetadata)==null?void 0:e.rendition);if(i)return $.deserialize(i)},E.prototype.getClipped=function(){return this.otherProperties.clipped},E.prototype.getFit=function(){return this.otherProperties.fit},E.prototype.getOrientation=function(){return this.otherProperties.orientation},E.prototype.getOverflow=function(){return this.otherProperties.overflow},E.prototype.getPage=function(){return this.otherProperties.page||void 0},E.prototype.getSpread=function(){return this.otherProperties.spread||void 0};class _e{text(t=`
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S({href:"",type:""}),{index:-1,text:""})}async hasNext(){var t;return(t=this.currentElement)==null||t.direction,this.nextIn(1)!==null}next(){this.currentElement=this.nextIn(1);const t=this.currentElementIndex;if(t!==null&&t>=0&&t<this.pageContentFiltered.length-1){const e=t+1;this.currentProgression=e/this.pageContentFiltered.length*100,this.currentElementIndex=e}return this.currentElement?this.currentElement.element:new ut(new S({href:"",type:""}),{index:-1,text:""})}nextIn(t){const e=this.currentElementIndex;if(e===null||e===this.pageContentFiltered.length-1&&t===1||e===0&&t===-1)return null;const r=this.pageContentFiltered[e+t];return r?new ie(r,t):null}updateElementIndex(){return this.currentProgression===0?0:this.currentProgression<0||this.currentProgression>=100?null:Math.floor(this.curren