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mirror of https://github.com/janeczku/calibre-web synced 2024-12-24 17:10:31 +00:00
calibre-web/cps/static/js/libs/epub.min.js
2023-06-09 16:11:53 +02:00

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o=Object(r.windowBounds)(),a=window.getComputedStyle(document.body),h=parseFloat(a["padding-left"])||0,l=parseFloat(a["padding-right"])||0,c=parseFloat(a["padding-top"])||0,u=parseFloat(a["padding-bottom"])||0;return n||(t=o.width-h-l),(this.settings.fullsize&&!s||!s)&&(e=o.height-c-u),{width:t-this.containerPadding.left-this.containerPadding.right,height:e-this.containerPadding.top-this.containerPadding.bottom}}bounds(){let t;return"visible"!==this.container.style.overflow&&(t=this.container&&this.container.getBoundingClientRect()),t&&t.width&&t.height?t:Object(r.windowBounds)()}getSheet(){var t=document.createElement("style");return t.appendChild(document.createTextNode("")),document.head.appendChild(t),t.sheet}addStyleRules(t,e){var i="#"+this.id+" ",n="";this.sheet||(this.sheet=this.getSheet()),e.forEach((function(t){for(var e in t)t.hasOwnProperty(e)&&(n+=e+":"+t[e]+";")})),this.sheet.insertRule(i+t+" {"+n+"}",0)}axis(t){"horizontal"===t?(this.container.style.display="flex",this.container.style.flexDirection="row",this.container.style.flexWrap="nowrap"):this.container.style.display="block",this.settings.axis=t}direction(t){this.container&&(this.container.dir=t,this.container.style.direction=t),this.settings.fullsize&&(document.body.style.direction=t),this.settings.dir=t}overflow(t){this.container&&("scroll"===t&&"vertical"===this.settings.axis?(this.container.style["overflow-y"]=t,this.container.style["overflow-x"]="hidden"):"scroll"===t&&"horizontal"===this.settings.axis?(this.container.style["overflow-y"]="hidden",this.container.style["overflow-x"]=t):this.container.style.overflow=t),this.settings.overflow=t}destroy(){this.element&&(this.settings.hidden?this.wrapper:this.container,this.element.contains(this.container)&&this.element.removeChild(this.container),window.removeEventListener("resize",this.resizeFunc),window.removeEventListener("orientationChange",this.orientationChangeFunc))}};var d=class{constructor(t){this.container=t,this._views=[],this.length=0,this.hidden=!1}all(){return this._views}first(){return this._views[0]}last(){return this._views[this._views.length-1]}indexOf(t){return this._views.indexOf(t)}slice(){return this._views.slice.apply(this._views,arguments)}get(t){return this._views[t]}append(t){return this._views.push(t),this.container&&this.container.appendChild(t.element),this.length++,t}prepend(t){return this._views.unshift(t),this.container&&this.container.insertBefore(t.element,this.container.firstChild),this.length++,t}insert(t,e){return this._views.splice(e,0,t),this.container&&(e<this.container.children.length?this.container.insertBefore(t.element,this.container.children[e]):this.container.appendChild(t.element)),this.length++,t}remove(t){var e=this._views.indexOf(t);e>-1&&this._views.splice(e,1),this.destroy(t),this.length--}destroy(t){t.displayed&&t.destroy(),this.container&&this.container.removeChild(t.element),t=null}forEach(){return this._views.forEach.apply(this._views,arguments)}clear(){var t,e=this.length;if(this.length){for(var i=0;i<e;i++)t=this._views[i],this.destroy(t);this._views=[],this.length=0}}find(t){for(var e,i=this.length,n=0;n<i;n++)if((e=this._views[n]).displayed&&e.section.index==t.index)return e}displayed(){for(var t,e=[],i=this.length,n=0;n<i;n++)(t=this._views[n]).displayed&&e.push(t);return e}show(){for(var t,e=this.length,i=0;i<e;i++)(t=this._views[i]).displayed&&t.show();this.hidden=!1}hide(){for(var t,e=this.length,i=0;i<e;i++)(t=this._views[i]).displayed&&t.hide();this.hidden=!0}},f=i(1);class p{constructor(t){this.name="default",this.optsSettings=t.settings,this.View=t.view,this.request=t.request,this.renditionQueue=t.queue,this.q=new h.a(this),this.settings=Object(r.extend)(this.settings||{},{infinite:!0,hidden:!1,width:void 0,height:void 0,axis:void 0,writingMode:void 0,flow:"scrolled",ignoreClass:"",fullsize:void 0,allowScriptedContent:!1,allowPopups:!1}),Object(r.extend)(this.settings,t.settings||{}),this.viewSettings={ignoreClass:this.settings.ignoreClass,axis:this.settings.axis,flow:this.settings.flow,layout:this.layout,method:this.settings.method,width:0,height:0,forceEvenPages:!0,allowScriptedContent:this.settings.allowScriptedContent,allowPopups:this.settings.allowPopups},this.rendered=!1}render(t,e){let i=t.tagName;void 0!==this.settings.fullsize||!i||"body"!=i.toLowerCase()&&"html"!=i.toLowerCase()||(this.settings.fullsize=!0),this.settings.fullsize&&(this.settings.overflow="visible",this.overflow=this.settings.overflow),this.settings.size=e,this.settings.rtlScrollType=o(),this.stage=new u({width:e.width,height:e.height,overflow:this.overflow,hidden:this.settings.hidden,axis:this.settings.axis,fullsize:this.settings.fullsize,direction:this.settings.direction}),this.stage.attachTo(t),this.container=this.stage.getContainer(),this.views=new d(this.container),this._bounds=this.bounds(),this._stageSize=this.stage.size(),this.viewSettings.width=this._stageSize.width,this.viewSettings.height=this._stageSize.height,this.stage.onResize(this.onResized.bind(this)),this.stage.onOrientationChange(this.onOrientationChange.bind(this)),this.addEventListeners(),this.layout&&this.updateLayout(),this.rendered=!0}addEventListeners(){var t;window.addEventListener("unload",function(t){this.destroy()}.bind(this)),t=this.settings.fullsize?window:this.container,this._onScroll=this.onScroll.bind(this),t.addEventListener("scroll",this._onScroll)}removeEventListeners(){(this.settings.fullsize?window:this.container).removeEventListener("scroll",this._onScroll),this._onScroll=void 0}destroy(){clearTimeout(this.orientationTimeout),clearTimeout(this.resizeTimeout),clearTimeout(this.afterScrolled),this.clear(),this.removeEventListeners(),this.stage.destroy(),this.rendered=!1}onOrientationChange(t){let{orientation:e}=window;this.optsSettings.resizeOnOrientationChange&&this.resize(),clearTimeout(this.orientationTimeout),this.orientationTimeout=setTimeout(function(){this.orientationTimeout=void 0,this.optsSettings.resizeOnOrientationChange&&this.resize(),this.emit(f.c.MANAGERS.ORIENTATION_CHANGE,e)}.bind(this),500)}onResized(t){this.resize()}resize(t,e,i){let n=this.stage.size(t,e);this.winBounds=Object(r.windowBounds)(),this.orientationTimeout&&this.winBounds.width===this.winBounds.height?this._stageSize=void 0:this._stageSize&&this._stageSize.width===n.width&&this._stageSize.height===n.height||(this._stageSize=n,this._bounds=this.bounds(),this.clear(),this.viewSettings.width=this._stageSize.width,this.viewSettings.height=this._stageSize.height,this.updateLayout(),this.emit(f.c.MANAGERS.RESIZED,{width:this._stageSize.width,height:this._stageSize.height},i))}createView(t,e){return new this.View(t,Object(r.extend)(this.viewSettings,{forceRight:e}))}handleNextPrePaginated(t,e,i){let n;if("pre-paginated"===this.layout.name&&this.layout.divisor>1){if(t||0===e.index)return;if(n=e.next(),n&&!n.properties.includes("page-spread-left"))return i.call(this,n)}}display(t,e){var i=new r.defer,n=i.promise;(e===t.href||Object(r.isNumber)(e))&&(e=void 0);var s=this.views.find(t);if(s&&t&&"pre-paginated"!==this.layout.name){let t=s.offset();if("ltr"===this.settings.direction)this.scrollTo(t.left,t.top,!0);else{let e=s.width();this.scrollTo(t.left+e,t.top,!0)}if(e){let t=s.locationOf(e),i=s.width();this.moveTo(t,i)}return i.resolve(),n}this.clear();let o=!1;return"pre-paginated"===this.layout.name&&2===this.layout.divisor&&t.properties.includes("page-spread-right")&&(o=!0),this.add(t,o).then(function(t){if(e){let i=t.locationOf(e),n=t.width();this.moveTo(i,n)}}.bind(this),t=>{i.reject(t)}).then(function(){return this.handleNextPrePaginated(o,t,this.add)}.bind(this)).then(function(){this.views.show(),i.resolve()}.bind(this)),n}afterDisplayed(t){this.emit(f.c.MANAGERS.ADDED,t)}afterResized(t){this.emit(f.c.MANAGERS.RESIZE,t.section)}moveTo(t,e){var i=0,n=0;this.isPaginated?((i=Math.floor(t.left/this.layout.delta)*this.layout.delta)+this.layout.delta>this.container.scrollWidth&&(i=this.container.scrollWidth-this.layout.delta),(n=Math.floor(t.top/this.layout.delta)*this.layout.delta)+this.layout.delta>this.container.scrollHeight&&(n=this.container.scrollHeight-this.layout.delta)):n=t.top,"rtl"===this.settings.direction&&(i+=this.layout.delta,i-=e),this.scrollTo(i,n,!0)}add(t,e){var i=this.createView(t,e);return this.views.append(i),i.onDisplayed=this.afterDisplayed.bind(this),i.onResize=this.afterResized.bind(this),i.on(f.c.VIEWS.AXIS,t=>{this.updateAxis(t)}),i.on(f.c.VIEWS.WRITING_MODE,t=>{this.updateWritingMode(t)}),i.display(this.request)}append(t,e){var i=this.createView(t,e);return this.views.append(i),i.onDisplayed=this.afterDisplayed.bind(this),i.onResize=this.afterResized.bind(this),i.on(f.c.VIEWS.AXIS,t=>{this.updateAxis(t)}),i.on(f.c.VIEWS.WRITING_MODE,t=>{this.updateWritingMode(t)}),i.display(this.request)}prepend(t,e){var i=this.createView(t,e);return i.on(f.c.VIEWS.RESIZED,t=>{this.counter(t)}),this.views.prepend(i),i.onDisplayed=this.afterDisplayed.bind(this),i.onResize=this.afterResized.bind(this),i.on(f.c.VIEWS.AXIS,t=>{this.updateAxis(t)}),i.on(f.c.VIEWS.WRITING_MODE,t=>{this.updateWritingMode(t)}),i.display(this.request)}counter(t){"vertical"===this.settings.axis?this.scrollBy(0,t.heightDelta,!0):this.scrollBy(t.widthDelta,0,!0)}next(){var t;let e=this.settings.direction;if(this.views.length){if(!this.isPaginated||"horizontal"!==this.settings.axis||e&&"ltr"!==e)if(this.isPaginated&&"horizontal"===this.settings.axis&&"rtl"===e)this.scrollLeft=this.container.scrollLeft,"default"===this.settings.rtlScrollType?this.container.scrollLeft>0?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next():this.container.scrollLeft+-1*this.layout.delta>-1*this.container.scrollWidth?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next();else if(this.isPaginated&&"vertical"===this.settings.axis){this.scrollTop=this.container.scrollTop,this.container.scrollTop+this.container.offsetHeight<this.container.scrollHeight?this.scrollBy(0,this.layout.height,!0):t=this.views.last().section.next()}else t=this.views.last().section.next();else this.scrollLeft=this.container.scrollLeft,this.container.scrollLeft+this.container.offsetWidth+this.layout.delta<=this.container.scrollWidth?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next();if(t){this.clear(),this.updateLayout();let e=!1;return"pre-paginated"===this.layout.name&&2===this.layout.divisor&&t.properties.includes("page-spread-right")&&(e=!0),this.append(t,e).then(function(){return this.handleNextPrePaginated(e,t,this.append)}.bind(this),t=>t).then(function(){this.isPaginated||"horizontal"!==this.settings.axis||"rtl"!==this.settings.direction||"default"!==this.settings.rtlScrollType||this.scrollTo(this.container.scrollWidth,0,!0),this.views.show()}.bind(this))}}}prev(){var t;let e=this.settings.direction;if(this.views.length){if(!this.isPaginated||"horizontal"!==this.settings.axis||e&&"ltr"!==e)if(this.isPaginated&&"horizontal"===this.settings.axis&&"rtl"===e)this.scrollLeft=this.container.scrollLeft,"default"===this.settings.rtlScrollType?this.container.scrollLeft+this.container.offsetWidth<this.container.scrollWidth?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev():this.container.scrollLeft<0?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev();else if(this.isPaginated&&"vertical"===this.settings.axis){this.scrollTop=this.container.scrollTop,this.container.scrollTop>0?this.scrollBy(0,-this.layout.height,!0):t=this.views.first().section.prev()}else t=this.views.first().section.prev();else this.scrollLeft=this.container.scrollLeft,this.container.scrollLeft>0?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev();if(t){this.clear(),this.updateLayout();let e=!1;return"pre-paginated"===this.layout.name&&2===this.layout.divisor&&"object"!=typeof t.prev()&&(e=!0),this.prepend(t,e).then(function(){var e;if("pre-paginated"===this.layout.name&&this.layout.divisor>1&&(e=t.prev()))return this.prepend(e)}.bind(this),t=>t).then(function(){this.isPaginated&&"horizontal"===this.settings.axis&&("rtl"===this.settings.direction?"default"===this.settings.rtlScrollType?this.scrollTo(0,0,!0):this.scrollTo(-1*this.container.scrollWidth+this.layout.delta,0,!0):this.scrollTo(this.container.scrollWidth-this.layout.delta,0,!0)),this.views.show()}.bind(this))}}}current(){var t=this.visible();return t.length?t[t.length-1]:null}clear(){this.views&&(this.views.hide(),this.scrollTo(0,0,!0),this.views.clear())}currentLocation(){return this.updateLayout(),this.isPaginated&&"horizontal"===this.settings.axis?this.location=this.paginatedLocation():this.location=this.scrolledLocation(),this.location}scrolledLocation(){let t=this.visible(),e=this.container.getBoundingClientRect(),i=e.height<window.innerHeight?e.height:window.innerHeight,n=e.width<window.innerWidth?e.width:window.innerWidth,s="vertical"===this.settings.axis,r=(this.settings.direction,0);return this.settings.fullsize&&(r=s?window.scrollY:window.scrollX),t.map(t=>{let o,a,h,l,{index:c,href:u}=t.section,d=t.position(),f=t.width(),p=t.height();s?(o=r+e.top-d.top+0,a=o+i-0,l=this.layout.count(p,i).pages,h=i):(o=r+e.left-d.left+0,a=o+n-0,l=this.layout.count(f,n).pages,h=n);let g=Math.ceil(o/h),m=[],v=Math.ceil(a/h);if("rtl"===this.settings.direction&&!s){let t=g;g=l-v,v=l-t}m=[];for(var y=g;y<=v;y++){let t=y+1;m.push(t)}return{index:c,href:u,pages:m,totalPages:l,mapping:this.mapping.page(t.contents,t.section.cfiBase,o,a)}})}paginatedLocation(){let t=this.visible(),e=this.container.getBoundingClientRect(),i=0,n=0;return this.settings.fullsize&&(i=window.scrollX),t.map(t=>{let s,r,o,a,{index:h,href:l}=t.section,c=t.position(),u=t.width();"rtl"===this.settings.direction?(s=e.right-i,a=Math.min(Math.abs(s-c.left),this.layout.width)-n,o=c.width-(c.right-s)-n,r=o-a):(s=e.left+i,a=Math.min(c.right-s,this.layout.width)-n,r=s-c.left+n,o=r+a),n+=a;let d=this.mapping.page(t.contents,t.section.cfiBase,r,o),f=this.layout.count(u).pages,p=Math.floor(r/this.layout.pageWidth),g=[],m=Math.floor(o/this.layout.pageWidth);if(p<0&&(p=0,m+=1),"rtl"===this.settings.direction){let t=p;p=f-m,m=f-t}for(var v=p+1;v<=m;v++){let t=v;g.push(t)}return{index:h,href:l,pages:g,totalPages:f,mapping:d}})}isVisible(t,e,i,n){var s=t.position(),r=n||this.bounds();return"horizontal"===this.settings.axis&&s.right>r.left-e&&s.left<r.right+i||"vertical"===this.settings.axis&&s.bottom>r.top-e&&s.top<r.bottom+i}visible(){for(var t,e=this.bounds(),i=this.views.displayed(),n=i.length,s=[],r=0;r<n;r++)t=i[r],!0===this.isVisible(t,0,0,e)&&s.push(t);return s}scrollBy(t,e,i){let n="rtl"===this.settings.direction?-1:1;i&&(this.ignore=!0),this.settings.fullsize?window.scrollBy(t*n,e*n):(t&&(this.container.scrollLeft+=t*n),e&&(this.container.scrollTop+=e)),this.scrolled=!0}scrollTo(t,e,i){i&&(this.ignore=!0),this.settings.fullsize?window.scrollTo(t,e):(this.container.scrollLeft=t,this.container.scrollTop=e),this.scrolled=!0}onScroll(){let t,e;this.settings.fullsize?(t=window.scrollY,e=window.scrollX):(t=this.container.scrollTop,e=this.container.scrollLeft),this.scrollTop=t,this.scrollLeft=e,this.ignore?this.ignore=!1:(this.emit(f.c.MANAGERS.SCROLL,{top:t,left:e}),clearTimeout(this.afterScrolled),this.afterScrolled=setTimeout(function(){this.emit(f.c.MANAGERS.SCROLLED,{top:this.scrollTop,left:this.scrollLeft})}.bind(this),20))}bounds(){return this.stage.bounds()}applyLayout(t){this.layout=t,this.updateLayout(),this.views&&this.views.length>0&&"pre-paginated"===this.layout.name&&this.display(this.views.first().section)}updateLayout(){this.stage&&(this._stageSize=this.stage.size(),this.isPaginated?(this.layout.calculate(this._stageSize.width,this._stageSize.height,this.settings.gap),this.settings.offset=this.layout.delta/this.layout.divisor):this.layout.calculate(this._stageSize.width,this._stageSize.height),this.viewSettings.width=this.layout.width,this.viewSettings.height=this.layout.height,this.setLayout(this.layout))}setLayout(t){this.viewSettings.layout=t,this.mapping=new a.a(t.props,this.settings.direction,this.settings.axis),this.views&&this.views.forEach((function(e){e&&e.setLayout(t)}))}updateWritingMode(t){this.writingMode=t}updateAxis(t,e){(e||t!==this.settings.axis)&&(this.settings.axis=t,this.stage&&this.stage.axis(t),this.viewSettings.axis=t,this.mapping&&(this.mapping=new a.a(this.layout.props,this.settings.direction,this.settings.axis)),this.layout&&("vertical"===t?this.layout.spread("none"):this.layout.spread(this.layout.settings.spread)))}updateFlow(t,e="auto"){let i="paginated"===t||"auto"===t;this.isPaginated=i,"scrolled-doc"===t||"scrolled-continuous"===t||"scrolled"===t?this.updateAxis("vertical"):this.updateAxis("horizontal"),this.viewSettings.flow=t,this.settings.overflow?this.overflow=this.settings.overflow:this.overflow=i?"hidden":e,this.stage&&this.stage.overflow(this.overflow),this.updateLayout()}getContents(){var t=[];return this.views?(this.views.forEach((function(e){const i=e&&e.contents;i&&t.push(i)})),t):t}direction(t="ltr"){this.settings.direction=t,this.stage&&this.stage.direction(t),this.viewSettings.direction=t,this.updateLayout()}isRendered(){return this.rendered}}s()(p.prototype);e.a=p},function(t,e,i){"use strict";var n=i(2),s=i(0);e.a=class{constructor(t,e,i,n=!1){this.layout=t,this.horizontal="horizontal"===i,this.direction=e||"ltr",this._dev=n}section(t){var e=this.findRanges(t);return this.rangeListToCfiList(t.section.cfiBase,e)}page(t,e,i,s){var r,o=!(!t||!t.document)&&t.document.body;if(o){if(r=this.rangePairToCfiPair(e,{start:this.findStart(o,i,s),end:this.findEnd(o,i,s)}),!0===this._dev){let e=t.document,i=new n.a(r.start).toRange(e),s=new n.a(r.end).toRange(e),o=e.defaultView.getSelection(),a=e.createRange();o.removeAllRanges(),a.setStart(i.startContainer,i.startOffset),a.setEnd(s.endContainer,s.endOffset),o.addRange(a)}return r}}walk(t,e){if(!t||t.nodeType!==Node.TEXT_NODE){var i=function(t){return t.data.trim().length>0?NodeFilter.FILTER_ACCEPT:NodeFilter.FILTER_REJECT},n=i;n.acceptNode=i;for(var s,r,o=document.createTreeWalker(t,NodeFilter.SHOW_TEXT,n,!1);(s=o.nextNode())&&!(r=e(s)););return r}}findRanges(t){for(var 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a=e[r],h=s.default.createElement("rect");h.setAttribute("x",a.left-i.left+n.left),h.setAttribute("y",a.top-i.top+n.top),h.setAttribute("height",a.height),h.setAttribute("width",a.width),t.appendChild(h)}this.element.appendChild(t)}}]),e}(c);e.Underline=function(t){function e(t,i,n,s){return l(this,e),a(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t,i,n,s))}return h(e,t),n(e,[{key:"render",value:function(){for(;this.element.firstChild;)this.element.removeChild(this.element.firstChild);for(var t=this.element.ownerDocument.createDocumentFragment(),e=this.filteredRanges(),i=this.element.getBoundingClientRect(),n=this.container.getBoundingClientRect(),r=0,o=e.length;r<o;r++){var a=e[r],h=s.default.createElement("rect");h.setAttribute("x",a.left-i.left+n.left),h.setAttribute("y",a.top-i.top+n.top),h.setAttribute("height",a.height),h.setAttribute("width",a.width),h.setAttribute("fill","none");var l=s.default.createElement("line");l.setAttribute("x1",a.left-i.left+n.left),l.setAttribute("x2",a.left-i.left+n.left+a.width),l.setAttribute("y1",a.top-i.top+n.top+a.height-1),l.setAttribute("y2",a.top-i.top+n.top+a.height-1),l.setAttribute("stroke-width",1),l.setAttribute("stroke","black"),l.setAttribute("stroke-linecap","square"),t.appendChild(h),t.appendChild(l)}this.element.appendChild(t)}}]),e}(u)},function(t,e,i){"use strict";function n(t,e){return void 0===e&&(e=Object),e&&"function"==typeof e.freeze?e.freeze(t):t}var s=n({HTML:"text/html",isHTML:function(t){return t===s.HTML},XML_APPLICATION:"application/xml",XML_TEXT:"text/xml",XML_XHTML_APPLICATION:"application/xhtml+xml",XML_SVG_IMAGE:"image/svg+xml"}),r=n({HTML:"http://www.w3.org/1999/xhtml",isHTML:function(t){return t===r.HTML},SVG:"http://www.w3.org/2000/svg",XML:"http://www.w3.org/XML/1998/namespace",XMLNS:"http://www.w3.org/2000/xmlns/"});e.freeze=n,e.MIME_TYPE=s,e.NAMESPACE=r},function(t,e,i){var n=i(25);e.DOMImplementation=n.DOMImplementation,e.XMLSerializer=n.XMLSerializer,e.DOMParser=i(46).DOMParser},function(t,e,i){"use strict";var n=i(3),s=i.n(n),r=i(0),o=i(6),a=i(2),h=i(9),l=i(1);class c{constructor(t){this.settings=t,this.name=t.layout||"reflowable",this._spread="none"!==t.spread,this._minSpreadWidth=t.minSpreadWidth||800,this._evenSpreads=t.evenSpreads||!1,"scrolled"===t.flow||"scrolled-continuous"===t.flow||"scrolled-doc"===t.flow?this._flow="scrolled":this._flow="paginated",this.width=0,this.height=0,this.spreadWidth=0,this.delta=0,this.columnWidth=0,this.gap=0,this.divisor=1,this.props={name:this.name,spread:this._spread,flow:this._flow,width:0,height:0,spreadWidth:0,delta:0,columnWidth:0,gap:0,divisor:1}}flow(t){return void 0!==t&&(this._flow="scrolled"===t||"scrolled-continuous"===t||"scrolled-doc"===t?"scrolled":"paginated",this.update({flow:this._flow})),this._flow}spread(t,e){return t&&(this._spread="none"!==t,this.update({spread:this._spread})),e>=0&&(this._minSpreadWidth=e),this._spread}calculate(t,e,i){var n,s,r,o,a=1,h=i||0,l=t,c=e,u=Math.floor(l/12);a=this._spread&&l>=this._minSpreadWidth?2:1,"reflowable"!==this.name||"paginated"!==this._flow||i>=0||(h=u%2==0?u:u-1),"pre-paginated"===this.name&&(h=0),a>1?r=(n=l/a-h)+h:(n=l,r=l),"pre-paginated"===this.name&&a>1&&(l=n),s=n*a+h,o=l,this.width=l,this.height=c,this.spreadWidth=s,this.pageWidth=r,this.delta=o,this.columnWidth=n,this.gap=h,this.divisor=a,this.update({width:l,height:c,spreadWidth:s,pageWidth:r,delta:o,columnWidth:n,gap:h,divisor:a})}format(t,e,i){return"pre-paginated"===this.name?t.fit(this.columnWidth,this.height,e):"paginated"===this._flow?t.columns(this.width,this.height,this.columnWidth,this.gap,this.settings.direction):i&&"horizontal"===i?t.size(null,this.height):t.size(this.width,null)}count(t,e){let i,n;return"pre-paginated"===this.name?(i=1,n=1):"paginated"===this._flow?(e=e||this.delta,i=Math.ceil(t/e),n=i*this.divisor):(e=e||this.height,i=Math.ceil(t/e),n=i),{spreads:i,pages:n}}update(t){if(Object.keys(t).forEach(e=>{this.props[e]===t[e]&&delete t[e]}),Object.keys(t).length>0){let e=Object(r.extend)(this.props,t);this.emit(l.c.LAYOUT.UPDATED,e,t)}}}s()(c.prototype);var u=c,d=i(5);var f=class{constructor(t){this.rendition=t,this._themes={default:{rules:{},url:"",serialized:""}},this._overrides={},this._current="default",this._injected=[],this.rendition.hooks.content.register(this.inject.bind(this)),this.rendition.hooks.content.register(this.overrides.bind(this))}register(){if(0!==arguments.length)return 1===arguments.length&&"object"==typeof arguments[0]?this.registerThemes(arguments[0]):1===arguments.length&&"string"==typeof arguments[0]?this.default(arguments[0]):2===arguments.length&&"string"==typeof arguments[1]?this.registerUrl(arguments[0],arguments[1]):2===arguments.length&&"object"==typeof arguments[1]?this.registerRules(arguments[0],arguments[1]):void 0}default(t){if(t)return"string"==typeof t?this.registerUrl("default",t):"object"==typeof t?this.registerRules("default",t):void 0}registerThemes(t){for(var e in t)t.hasOwnProperty(e)&&("string"==typeof t[e]?this.registerUrl(e,t[e]):this.registerRules(e,t[e]))}registerCss(t,e){this._themes[t]={serialized:e},(this._injected[t]||"default"==t)&&this.update(t)}registerUrl(t,e){var i=new d.a(e);this._themes[t]={url:i.toString()},(this._injected[t]||"default"==t)&&this.update(t)}registerRules(t,e){this._themes[t]={rules:e},(this._injected[t]||"default"==t)&&this.update(t)}select(t){var e=this._current;this._current=t,this.update(t),this.rendition.getContents().forEach(i=>{i.removeClass(e),i.addClass(t)})}update(t){this.rendition.getContents().forEach(e=>{this.add(t,e)})}inject(t){var e,i=[],n=this._themes;for(var s in n)!n.hasOwnProperty(s)||s!==this._current&&"default"!==s||(((e=n[s]).rules&&Object.keys(e.rules).length>0||e.url&&-1===i.indexOf(e.url))&&this.add(s,t),this._injected.push(s));"default"!=this._current&&t.addClass(this._current)}add(t,e){var i=this._themes[t];i&&e&&(i.url?e.addStylesheet(i.url):i.serialized?(e.addStylesheetCss(i.serialized,t),i.injected=!0):i.rules&&(e.addStylesheetRules(i.rules,t),i.injected=!0))}override(t,e,i){var n=this.rendition.getContents();this._overrides[t]={value:e,priority:!0===i},n.forEach(e=>{e.css(t,this._overrides[t].value,this._overrides[t].priority)})}removeOverride(t){var e=this.rendition.getContents();delete this._overrides[t],e.forEach(e=>{e.css(t)})}overrides(t){var e=this._overrides;for(var i in e)e.hasOwnProperty(i)&&t.css(i,e[i].value,e[i].priority)}fontSize(t){this.override("font-size",t)}font(t){this.override("font-family",t,!0)}destroy(){this.rendition=void 0,this._themes=void 0,this._overrides=void 0,this._current=void 0,this._injected=void 0}};i(12);class p{constructor({type:t,cfiRange:e,data:i,sectionIndex:n,cb:s,className:r,styles:o}){this.type=t,this.cfiRange=e,this.data=i,this.sectionIndex=n,this.mark=void 0,this.cb=s,this.className=r,this.styles=o}update(t){this.data=t}attach(t){let e,{cfiRange:i,data:n,type:s,mark:r,cb:o,className:a,styles:h}=this;return"highlight"===s?e=t.highlight(i,n,o,a,h):"underline"===s?e=t.underline(i,n,o,a,h):"mark"===s&&(e=t.mark(i,n,o)),this.mark=e,this.emit(l.c.ANNOTATION.ATTACH,e),e}detach(t){let e,{cfiRange:i,type:n}=this;return t&&("highlight"===n?e=t.unhighlight(i):"underline"===n?e=t.ununderline(i):"mark"===n&&(e=t.unmark(i))),this.mark=void 0,this.emit(l.c.ANNOTATION.DETACH,e),e}text(){}}s()(p.prototype);var g=class{constructor(t){this.rendition=t,this.highlights=[],this.underlines=[],this.marks=[],this._annotations={},this._annotationsBySectionIndex={},this.rendition.hooks.render.register(this.inject.bind(this)),this.rendition.hooks.unloaded.register(this.clear.bind(this))}add(t,e,i,n,s,r){let o=encodeURI(e+t),h=new a.a(e).spinePos,l=new p({type:t,cfiRange:e,data:i,sectionIndex:h,cb:n,className:s,styles:r});return this._annotations[o]=l,h in this._annotationsBySectionIndex?this._annotationsBySectionIndex[h].push(o):this._annotationsBySectionIndex[h]=[o],this.rendition.views().forEach(t=>{l.sectionIndex===t.index&&l.attach(t)}),l}remove(t,e){let i=encodeURI(t+e);if(i in this._annotations){let t=this._annotations[i];if(e&&t.type!==e)return;this.rendition.views().forEach(e=>{this._removeFromAnnotationBySectionIndex(t.sectionIndex,i),t.sectionIndex===e.index&&t.detach(e)}),delete this._annotations[i]}}_removeFromAnnotationBySectionIndex(t,e){this._annotationsBySectionIndex[t]=this._annotationsAt(t).filter(t=>t!==e)}_annotationsAt(t){return this._annotationsBySectionIndex[t]}highlight(t,e,i,n,s){return this.add("highlight",t,e,i,n,s)}underline(t,e,i,n,s){return this.add("underline",t,e,i,n,s)}mark(t,e,i){return this.add("mark",t,e,i)}each(){return this._annotations.forEach.apply(this._annotations,arguments)}inject(t){let e=t.index;if(e in this._annotationsBySectionIndex){this._annotationsBySectionIndex[e].forEach(e=>{this._annotations[e].attach(t)})}}clear(t){let e=t.index;if(e in this._annotationsBySectionIndex){this._annotationsBySectionIndex[e].forEach(e=>{this._annotations[e].detach(t)})}}show(){}hide(){}},m=i(20),v=i(10),y=i(22);class b{constructor(t,e){this.settings=Object(r.extend)(this.settings||{},{width:null,height:null,ignoreClass:"",manager:"default",view:"iframe",flow:null,layout:null,spread:null,minSpreadWidth:800,stylesheet:null,resizeOnOrientationChange:!0,script:null,snap:!1,defaultDirection:"ltr",allowScriptedContent:!1,allowPopups:!1}),Object(r.extend)(this.settings,e),"object"==typeof this.settings.manager&&(this.manager=this.settings.manager),this.book=t,this.hooks={},this.hooks.display=new o.a(this),this.hooks.serialize=new o.a(this),this.hooks.content=new o.a(this),this.hooks.unloaded=new o.a(this),this.hooks.layout=new o.a(this),this.hooks.render=new o.a(this),this.hooks.show=new o.a(this),this.hooks.content.register(this.handleLinks.bind(this)),this.hooks.content.register(this.passEvents.bind(this)),this.hooks.content.register(this.adjustImages.bind(this)),this.book.spine.hooks.content.register(this.injectIdentifier.bind(this)),this.settings.stylesheet&&this.book.spine.hooks.content.register(this.injectStylesheet.bind(this)),this.settings.script&&this.book.spine.hooks.content.register(this.injectScript.bind(this)),this.themes=new f(this),this.annotations=new g(this),this.epubcfi=new a.a,this.q=new h.a(this),this.location=void 0,this.q.enqueue(this.book.opened),this.starting=new r.defer,this.started=this.starting.promise,this.q.enqueue(this.start)}setManager(t){this.manager=t}requireManager(t){return"string"==typeof t&&"default"===t?v.a:"string"==typeof t&&"continuous"===t?y.a:t}requireView(t){return"string"==typeof t&&"iframe"===t?m.a:t}start(){switch(this.settings.layout||"pre-paginated"!==this.book.package.metadata.layout&&"true"!==this.book.displayOptions.fixedLayout||(this.settings.layout="pre-paginated"),this.book.package.metadata.spread){case"none":this.settings.spread="none";break;case"both":this.settings.spread=!0}this.manager||(this.ViewManager=this.requireManager(this.settings.manager),this.View=this.requireView(this.settings.view),this.manager=new this.ViewManager({view:this.View,queue:this.q,request:this.book.load.bind(this.book),settings:this.settings})),this.direction(this.book.package.metadata.direction||this.settings.defaultDirection),this.settings.globalLayoutProperties=this.determineLayoutProperties(this.book.package.metadata),this.flow(this.settings.globalLayoutProperties.flow),this.layout(this.settings.globalLayoutProperties),this.manager.on(l.c.MANAGERS.ADDED,this.afterDisplayed.bind(this)),this.manager.on(l.c.MANAGERS.REMOVED,this.afterRemoved.bind(this)),this.manager.on(l.c.MANAGERS.RESIZED,this.onResized.bind(this)),this.manager.on(l.c.MANAGERS.ORIENTATION_CHANGE,this.onOrientationChange.bind(this)),this.manager.on(l.c.MANAGERS.SCROLLED,this.reportLocation.bind(this)),this.emit(l.c.RENDITION.STARTED),this.starting.resolve()}attachTo(t){return this.q.enqueue(function(){this.manager.render(t,{width:this.settings.width,height:this.settings.height}),this.emit(l.c.RENDITION.ATTACHED)}.bind(this))}display(t){return this.displaying&&this.displaying.resolve(),this.q.enqueue(this._display,t)}_display(t){if(this.book){this.epubcfi.isCfiString(t);var e,i=new r.defer,n=i.promise;return this.displaying=i,this.book.locations.length()&&Object(r.isFloat)(t)&&(t=this.book.locations.cfiFromPercentage(parseFloat(t))),(e=this.book.spine.get(t))?(this.manager.display(e,t).then(()=>{i.resolve(e),this.displaying=void 0,this.emit(l.c.RENDITION.DISPLAYED,e),this.reportLocation()},t=>{this.emit(l.c.RENDITION.DISPLAY_ERROR,t)}),n):(i.reject(new Error("No Section Found")),n)}}afterDisplayed(t){t.on(l.c.VIEWS.MARK_CLICKED,(e,i)=>this.triggerMarkEvent(e,i,t.contents)),this.hooks.render.trigger(t,this).then(()=>{t.contents?this.hooks.content.trigger(t.contents,this).then(()=>{this.emit(l.c.RENDITION.RENDERED,t.section,t)}):this.emit(l.c.RENDITION.RENDERED,t.section,t)})}afterRemoved(t){this.hooks.unloaded.trigger(t,this).then(()=>{this.emit(l.c.RENDITION.REMOVED,t.section,t)})}onResized(t,e){this.emit(l.c.RENDITION.RESIZED,{width:t.width,height:t.height},e),this.location&&this.location.start&&this.display(e||this.location.start.cfi)}onOrientationChange(t){this.emit(l.c.RENDITION.ORIENTATION_CHANGE,t)}moveTo(t){this.manager.moveTo(t)}resize(t,e,i){t&&(this.settings.width=t),e&&(this.settings.height=e),this.manager.resize(t,e,i)}clear(){this.manager.clear()}next(){return this.q.enqueue(this.manager.next.bind(this.manager)).then(this.reportLocation.bind(this))}prev(){return this.q.enqueue(this.manager.prev.bind(this.manager)).then(this.reportLocation.bind(this))}determineLayoutProperties(t){var e=this.settings.layout||t.layout||"reflowable",i=this.settings.spread||t.spread||"auto",n=this.settings.orientation||t.orientation||"auto",s=this.settings.flow||t.flow||"auto",r=t.viewport||"",o=this.settings.minSpreadWidth||t.minSpreadWidth||800,a=this.settings.direction||t.direction||"ltr";return(0===this.settings.width||this.settings.width>0)&&(0===this.settings.height||this.settings.height),{layout:e,spread:i,orientation:n,flow:s,viewport:r,minSpreadWidth:o,direction:a}}flow(t){var e=t;"scrolled"!==t&&"scrolled-doc"!==t&&"scrolled-continuous"!==t||(e="scrolled"),"auto"!==t&&"paginated"!==t||(e="paginated"),this.settings.flow=t,this._layout&&this._layout.flow(e),this.manager&&this._layout&&this.manager.applyLayout(this._layout),this.manager&&this.manager.updateFlow(e),this.manager&&this.manager.isRendered()&&this.location&&(this.manager.clear(),this.display(this.location.start.cfi))}layout(t){return t&&(this._layout=new u(t),this._layout.spread(t.spread,this.settings.minSpreadWidth),this._layout.on(l.c.LAYOUT.UPDATED,(t,e)=>{this.emit(l.c.RENDITION.LAYOUT,t,e)})),this.manager&&this._layout&&this.manager.applyLayout(this._layout),this._layout}spread(t,e){this.settings.spread=t,e&&(this.settings.minSpreadWidth=e),this._layout&&this._layout.spread(t,e),this.manager&&this.manager.isRendered()&&this.manager.updateLayout()}direction(t){this.settings.direction=t||"ltr",this.manager&&this.manager.direction(this.settings.direction),this.manager&&this.manager.isRendered()&&this.location&&(this.manager.clear(),this.display(this.location.start.cfi))}reportLocation(){return this.q.enqueue(function(){requestAnimationFrame(function(){var t=this.manager.currentLocation();if(t&&t.then&&"function"==typeof t.then)t.then(function(t){let e=this.located(t);e&&e.start&&e.end&&(this.location=e,this.emit(l.c.RENDITION.LOCATION_CHANGED,{index:this.location.start.index,href:this.location.start.href,start:this.location.start.cfi,end:this.location.end.cfi,percentage:this.location.start.percentage}),this.emit(l.c.RENDITION.RELOCATED,this.location))}.bind(this));else if(t){let e=this.located(t);if(!e||!e.start||!e.end)return;this.location=e,this.emit(l.c.RENDITION.LOCATION_CHANGED,{index:this.location.start.index,href:this.location.start.href,start:this.location.start.cfi,end:this.location.end.cfi,percentage:this.location.start.percentage}),this.emit(l.c.RENDITION.RELOCATED,this.location)}}.bind(this))}.bind(this))}currentLocation(){var t=this.manager.currentLocation();if(t&&t.then&&"function"==typeof t.then)t.then(function(t){return this.located(t)}.bind(this));else if(t){return this.located(t)}}located(t){if(!t.length)return{};let e=t[0],i=t[t.length-1],n={start:{index:e.index,href:e.href,cfi:e.mapping.start,displayed:{page:e.pages[0]||1,total:e.totalPages}},end:{index:i.index,href:i.href,cfi:i.mapping.end,displayed:{page:i.pages[i.pages.length-1]||1,total:i.totalPages}}},s=this.book.locations.locationFromCfi(e.mapping.start),r=this.book.locations.locationFromCfi(i.mapping.end);null!=s&&(n.start.location=s,n.start.percentage=this.book.locations.percentageFromLocation(s)),null!=r&&(n.end.location=r,n.end.percentage=this.book.locations.percentageFromLocation(r));let o=this.book.pageList.pageFromCfi(e.mapping.start),a=this.book.pageList.pageFromCfi(i.mapping.end);return-1!=o&&(n.start.page=o),-1!=a&&(n.end.page=a),i.index===this.book.spine.last().index&&n.end.displayed.page>=n.end.displayed.total&&(n.atEnd=!0),e.index===this.book.spine.first().index&&1===n.start.displayed.page&&(n.atStart=!0),n}destroy(){this.manager&&this.manager.destroy(),this.book=void 0}passEvents(t){l.a.forEach(e=>{t.on(e,e=>this.triggerViewEvent(e,t))}),t.on(l.c.CONTENTS.SELECTED,e=>this.triggerSelectedEvent(e,t))}triggerViewEvent(t,e){this.emit(t.type,t,e)}triggerSelectedEvent(t,e){this.emit(l.c.RENDITION.SELECTED,t,e)}triggerMarkEvent(t,e,i){this.emit(l.c.RENDITION.MARK_CLICKED,t,e,i)}getRange(t,e){var i=new a.a(t),n=this.manager.visible().filter((function(t){if(i.spinePos===t.index)return!0}));if(n.length)return n[0].contents.range(i,e)}adjustImages(t){if("pre-paginated"===this._layout.name)return new Promise((function(t){t()}));let e=t.window.getComputedStyle(t.content,null),i=.95*(t.content.offsetHeight-(parseFloat(e.paddingTop)+parseFloat(e.paddingBottom))),n=parseFloat(e.paddingLeft)+parseFloat(e.paddingRight);return t.addStylesheetRules({img:{"max-width":(this._layout.columnWidth?this._layout.columnWidth-n+"px":"100%")+"!important","max-height":i+"px!important","object-fit":"contain","page-break-inside":"avoid","break-inside":"avoid","box-sizing":"border-box"},svg:{"max-width":(this._layout.columnWidth?this._layout.columnWidth-n+"px":"100%")+"!important","max-height":i+"px!important","page-break-inside":"avoid","break-inside":"avoid"}}),new Promise((function(t,e){setTimeout((function(){t()}),1)}))}getContents(){return this.manager?this.manager.getContents():[]}views(){return(this.manager?this.manager.views:void 0)||[]}handleLinks(t){t&&t.on(l.c.CONTENTS.LINK_CLICKED,t=>{let e=this.book.path.relative(t);this.display(e)})}injectStylesheet(t,e){let i=t.createElement("link");i.setAttribute("type","text/css"),i.setAttribute("rel","stylesheet"),i.setAttribute("href",this.settings.stylesheet),t.getElementsByTagName("head")[0].appendChild(i)}injectScript(t,e){let i=t.createElement("script");i.setAttribute("type","text/javascript"),i.setAttribute("src",this.settings.script),i.textContent=" ",t.getElementsByTagName("head")[0].appendChild(i)}injectIdentifier(t,e){let i=this.book.packaging.metadata.identifier,n=t.createElement("meta");n.setAttribute("name","dc.relation.ispartof"),i&&n.setAttribute("content",i),t.getElementsByTagName("head")[0].appendChild(n)}}s()(b.prototype);e.a=b},function(t,e){var i;i=function(){return this}();try{i=i||new Function("return this")()}catch(t){"object"==typeof window&&(i=window)}t.exports=i},function(t,e,i){"use strict";var n=i(38)();t.exports=function(t){return t!==n&&null!==t}},function(t,e){t.exports=function(t){var e=typeof t;return null!=t&&("object"==e||"function"==e)}},function(t,e,i){"use strict";var n=i(3),s=i.n(n),r=i(0),o=i(2),a=i(12),h=i(1),l=i(13);class c{constructor(t,e){this.settings=Object(r.extend)({ignoreClass:"",axis:void 0,direction:void 0,width:0,height:0,layout:void 0,globalLayoutProperties:{},method:void 0,forceRight:!1,allowScriptedContent:!1,allowPopups:!1},e||{}),this.id="epubjs-view-"+Object(r.uuid)(),this.section=t,this.index=t.index,this.element=this.container(this.settings.axis),this.added=!1,this.displayed=!1,this.rendered=!1,this.fixedWidth=0,this.fixedHeight=0,this.epubcfi=new o.a,this.layout=this.settings.layout,this.pane=void 0,this.highlights={},this.underlines={},this.marks={}}container(t){var e=document.createElement("div");return e.classList.add("epub-view"),e.style.height="0px",e.style.width="0px",e.style.overflow="hidden",e.style.position="relative",e.style.display="block",e.style.flex=t&&"horizontal"==t?"none":"initial",e}create(){return this.iframe||(this.element||(this.element=this.createContainer()),this.iframe=document.createElement("iframe"),this.iframe.id=this.id,this.iframe.scrolling="no",this.iframe.style.overflow="hidden",this.iframe.seamless="seamless",this.iframe.style.border="none",this.iframe.sandbox="allow-same-origin",this.settings.allowScriptedContent&&(this.iframe.sandbox+=" allow-scripts"),this.settings.allowPopups&&(this.iframe.sandbox+=" allow-popups"),this.iframe.setAttribute("enable-annotation","true"),this.resizing=!0,this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.iframe.style.width="0",this.iframe.style.height="0",this._width=0,this._height=0,this.element.setAttribute("ref",this.index),this.added=!0,this.elementBounds=Object(r.bounds)(this.element),"srcdoc"in this.iframe?this.supportsSrcdoc=!0:this.supportsSrcdoc=!1,this.settings.method||(this.settings.method=this.supportsSrcdoc?"srcdoc":"write")),this.iframe}render(t,e){return this.create(),this.size(),this.sectionRender||(this.sectionRender=this.section.render(t)),this.sectionRender.then(function(t){return this.load(t)}.bind(this)).then(function(){let t,e=this.contents.writingMode();return t="scrolled"===this.settings.flow?0===e.indexOf("vertical")?"horizontal":"vertical":0===e.indexOf("vertical")?"vertical":"horizontal",0===e.indexOf("vertical")&&"paginated"===this.settings.flow&&(this.layout.delta=this.layout.height),this.setAxis(t),this.emit(h.c.VIEWS.AXIS,t),this.setWritingMode(e),this.emit(h.c.VIEWS.WRITING_MODE,e),this.layout.format(this.contents,this.section,this.axis),this.addListeners(),new Promise((t,e)=>{this.expand(),this.settings.forceRight&&(this.element.style.marginLeft=this.width()+"px"),t()})}.bind(this),function(t){return this.emit(h.c.VIEWS.LOAD_ERROR,t),new Promise((e,i)=>{i(t)})}.bind(this)).then(function(){this.emit(h.c.VIEWS.RENDERED,this.section)}.bind(this))}reset(){this.iframe&&(this.iframe.style.width="0",this.iframe.style.height="0",this._width=0,this._height=0,this._textWidth=void 0,this._contentWidth=void 0,this._textHeight=void 0,this._contentHeight=void 0),this._needsReframe=!0}size(t,e){var i=t||this.settings.width,n=e||this.settings.height;"pre-paginated"===this.layout.name?this.lock("both",i,n):"horizontal"===this.settings.axis?this.lock("height",i,n):this.lock("width",i,n),this.settings.width=i,this.settings.height=n}lock(t,e,i){var n,s=Object(r.borders)(this.element);n=this.iframe?Object(r.borders)(this.iframe):{width:0,height:0},"width"==t&&Object(r.isNumber)(e)&&(this.lockedWidth=e-s.width-n.width),"height"==t&&Object(r.isNumber)(i)&&(this.lockedHeight=i-s.height-n.height),"both"===t&&Object(r.isNumber)(e)&&Object(r.isNumber)(i)&&(this.lockedWidth=e-s.width-n.width,this.lockedHeight=i-s.height-n.height),this.displayed&&this.iframe&&this.expand()}expand(t){var e,i=this.lockedWidth,n=this.lockedHeight;this.iframe&&!this._expanding&&(this._expanding=!0,"pre-paginated"===this.layout.name?(i=this.layout.columnWidth,n=this.layout.height):"horizontal"===this.settings.axis?((i=this.contents.textWidth())%this.layout.pageWidth>0&&(i=Math.ceil(i/this.layout.pageWidth)*this.layout.pageWidth),this.settings.forceEvenPages&&(e=i/this.layout.pageWidth,this.layout.divisor>1&&"reflowable"===this.layout.name&&e%2>0&&(i+=this.layout.pageWidth))):"vertical"===this.settings.axis&&(n=this.contents.textHeight(),"paginated"===this.settings.flow&&n%this.layout.height>0&&(n=Math.ceil(n/this.layout.height)*this.layout.height)),(this._needsReframe||i!=this._width||n!=this._height)&&this.reframe(i,n),this._expanding=!1)}reframe(t,e){var i;Object(r.isNumber)(t)&&(this.element.style.width=t+"px",this.iframe.style.width=t+"px",this._width=t),Object(r.isNumber)(e)&&(this.element.style.height=e+"px",this.iframe.style.height=e+"px",this._height=e),i={width:t,height:e,widthDelta:this.prevBounds?t-this.prevBounds.width:t,heightDelta:this.prevBounds?e-this.prevBounds.height:e},this.pane&&this.pane.render(),requestAnimationFrame(()=>{let t;for(let e in this.marks)this.marks.hasOwnProperty(e)&&(t=this.marks[e],this.placeMark(t.element,t.range))}),this.onResize(this,i),this.emit(h.c.VIEWS.RESIZED,i),this.prevBounds=i,this.elementBounds=Object(r.bounds)(this.element)}load(t){var e=new r.defer,i=e.promise;if(!this.iframe)return e.reject(new Error("No Iframe Available")),i;if(this.iframe.onload=function(t){this.onLoad(t,e)}.bind(this),"blobUrl"===this.settings.method)this.blobUrl=Object(r.createBlobUrl)(t,"application/xhtml+xml"),this.iframe.src=this.blobUrl,this.element.appendChild(this.iframe);else if("srcdoc"===this.settings.method)this.iframe.srcdoc=t,this.element.appendChild(this.iframe);else{if(this.element.appendChild(this.iframe),this.document=this.iframe.contentDocument,!this.document)return e.reject(new Error("No Document Available")),i;if(this.iframe.contentDocument.open(),window.MSApp&&MSApp.execUnsafeLocalFunction){var n=this;MSApp.execUnsafeLocalFunction((function(){n.iframe.contentDocument.write(t)}))}else this.iframe.contentDocument.write(t);this.iframe.contentDocument.close()}return i}onLoad(t,e){this.window=this.iframe.contentWindow,this.document=this.iframe.contentDocument,this.contents=new a.a(this.document,this.document.body,this.section.cfiBase,this.section.index),this.rendering=!1;var i=this.document.querySelector("link[rel='canonical']");i?i.setAttribute("href",this.section.canonical):((i=this.document.createElement("link")).setAttribute("rel","canonical"),i.setAttribute("href",this.section.canonical),this.document.querySelector("head").appendChild(i)),this.contents.on(h.c.CONTENTS.EXPAND,()=>{this.displayed&&this.iframe&&(this.expand(),this.contents&&this.layout.format(this.contents))}),this.contents.on(h.c.CONTENTS.RESIZE,t=>{this.displayed&&this.iframe&&(this.expand(),this.contents&&this.layout.format(this.contents))}),e.resolve(this.contents)}setLayout(t){this.layout=t,this.contents&&(this.layout.format(this.contents),this.expand())}setAxis(t){this.settings.axis=t,this.element.style.flex="horizontal"==t?"none":"initial",this.size()}setWritingMode(t){this.writingMode=t}addListeners(){}removeListeners(t){}display(t){var e=new r.defer;return this.displayed?e.resolve(this):this.render(t).then(function(){this.emit(h.c.VIEWS.DISPLAYED,this),this.onDisplayed(this),this.displayed=!0,e.resolve(this)}.bind(this),(function(t){e.reject(t,this)})),e.promise}show(){this.element.style.visibility="visible",this.iframe&&(this.iframe.style.visibility="visible",this.iframe.style.transform="translateZ(0)",this.iframe.offsetWidth,this.iframe.style.transform=null),this.emit(h.c.VIEWS.SHOWN,this)}hide(){this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.stopExpanding=!0,this.emit(h.c.VIEWS.HIDDEN,this)}offset(){return{top:this.element.offsetTop,left:this.element.offsetLeft}}width(){return this._width}height(){return this._height}position(){return this.element.getBoundingClientRect()}locationOf(t){this.iframe.getBoundingClientRect();var e=this.contents.locationOf(t,this.settings.ignoreClass);return{left:e.left,top:e.top}}onDisplayed(t){}onResize(t,e){}bounds(t){return!t&&this.elementBounds||(this.elementBounds=Object(r.bounds)(this.element)),this.elementBounds}highlight(t,e={},i,n="epubjs-hl",s={}){if(!this.contents)return;const r=Object.assign({fill:"yellow","fill-opacity":"0.3","mix-blend-mode":"multiply"},s);let o=this.contents.range(t),a=()=>{this.emit(h.c.VIEWS.MARK_CLICKED,t,e)};e.epubcfi=t,this.pane||(this.pane=new l.Pane(this.iframe,this.element));let c=new l.Highlight(o,n,e,r),u=this.pane.addMark(c);return this.highlights[t]={mark:u,element:u.element,listeners:[a,i]},u.element.setAttribute("ref",n),u.element.addEventListener("click",a),u.element.addEventListener("touchstart",a),i&&(u.element.addEventListener("click",i),u.element.addEventListener("touchstart",i)),u}underline(t,e={},i,n="epubjs-ul",s={}){if(!this.contents)return;const r=Object.assign({stroke:"black","stroke-opacity":"0.3","mix-blend-mode":"multiply"},s);let o=this.contents.range(t),a=()=>{this.emit(h.c.VIEWS.MARK_CLICKED,t,e)};e.epubcfi=t,this.pane||(this.pane=new l.Pane(this.iframe,this.element));let c=new l.Underline(o,n,e,r),u=this.pane.addMark(c);return this.underlines[t]={mark:u,element:u.element,listeners:[a,i]},u.element.setAttribute("ref",n),u.element.addEventListener("click",a),u.element.addEventListener("touchstart",a),i&&(u.element.addEventListener("click",i),u.element.addEventListener("touchstart",i)),u}mark(t,e={},i){if(!this.contents)return;if(t in this.marks){return this.marks[t]}let n=this.contents.range(t);if(!n)return;let s=n.commonAncestorContainer,r=1===s.nodeType?s:s.parentNode,o=i=>{this.emit(h.c.VIEWS.MARK_CLICKED,t,e)};n.collapsed&&1===s.nodeType?(n=new Range,n.selectNodeContents(s)):n.collapsed&&(n=new Range,n.selectNodeContents(r));let a=this.document.createElement("a");return a.setAttribute("ref","epubjs-mk"),a.style.position="absolute",a.dataset.epubcfi=t,e&&Object.keys(e).forEach(t=>{a.dataset[t]=e[t]}),i&&(a.addEventListener("click",i),a.addEventListener("touchstart",i)),a.addEventListener("click",o),a.addEventListener("touchstart",o),this.placeMark(a,n),this.element.appendChild(a),this.marks[t]={element:a,range:n,listeners:[o,i]},r}placeMark(t,e){let i,n,s;if("pre-paginated"===this.layout.name||"horizontal"!==this.settings.axis){let t=e.getBoundingClientRect();i=t.top,n=t.right}else{let t,o=e.getClientRects();for(var r=0;r!=o.length;r++)t=o[r],(!s||t.left<s)&&(s=t.left,n=Math.ceil(s/this.layout.props.pageWidth)*this.layout.props.pageWidth-this.layout.gap/2,i=t.top)}t.style.top=i+"px",t.style.left=n+"px"}unhighlight(t){let e;t in this.highlights&&(e=this.highlights[t],this.pane.removeMark(e.mark),e.listeners.forEach(t=>{t&&(e.element.removeEventListener("click",t),e.element.removeEventListener("touchstart",t))}),delete this.highlights[t])}ununderline(t){let e;t in this.underlines&&(e=this.underlines[t],this.pane.removeMark(e.mark),e.listeners.forEach(t=>{t&&(e.element.removeEventListener("click",t),e.element.removeEventListener("touchstart",t))}),delete this.underlines[t])}unmark(t){let e;t in this.marks&&(e=this.marks[t],this.element.removeChild(e.element),e.listeners.forEach(t=>{t&&(e.element.removeEventListener("click",t),e.element.removeEventListener("touchstart",t))}),delete this.marks[t])}destroy(){for(let t in this.highlights)this.unhighlight(t);for(let t in this.underlines)this.ununderline(t);for(let t in this.marks)this.unmark(t);this.blobUrl&&Object(r.revokeBlobUrl)(this.blobUrl),this.displayed&&(this.displayed=!1,this.removeListeners(),this.contents.destroy(),this.stopExpanding=!0,this.element.removeChild(this.iframe),this.pane&&(this.pane.element.remove(),this.pane=void 0),this.iframe=void 0,this.contents=void 0,this._textWidth=null,this._textHeight=null,this._width=null,this._height=null)}}s()(c.prototype),e.a=c},function(t,e,i){var n=i(19),s=i(51),r=i(53),o=Math.max,a=Math.min;t.exports=function(t,e,i){var h,l,c,u,d,f,p=0,g=!1,m=!1,v=!0;if("function"!=typeof t)throw new TypeError("Expected a function");function y(e){var i=h,n=l;return h=l=void 0,p=e,u=t.apply(n,i)}function b(t){return p=t,d=setTimeout(x,e),g?y(t):u}function w(t){var i=t-f;return void 0===f||i>=e||i<0||m&&t-p>=c}function x(){var t=s();if(w(t))return E(t);d=setTimeout(x,function(t){var i=e-(t-f);return m?a(i,c-(t-p)):i}(t))}function E(t){return d=void 0,v&&h?y(t):(h=l=void 0,u)}function S(){var t=s(),i=w(t);if(h=arguments,l=this,f=t,i){if(void 0===d)return b(f);if(m)return clearTimeout(d),d=setTimeout(x,e),y(f)}return void 0===d&&(d=setTimeout(x,e)),u}return e=r(e)||0,n(i)&&(g=!!i.leading,c=(m="maxWait"in i)?o(r(i.maxWait)||0,e):c,v="trailing"in i?!!i.trailing:v),S.cancel=function(){void 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c{constructor(t,e){this.settings=Object(n.extend)({duration:80,minVelocity:.2,minDistance:10,easing:l.easeInCubic},e||{}),this.supportsTouch=this.supportsTouch(),this.supportsTouch&&this.setup(t)}setup(t){this.manager=t,this.layout=this.manager.layout,this.fullsize=this.manager.settings.fullsize,this.fullsize?(this.element=this.manager.stage.element,this.scroller=window,this.disableScroll()):(this.element=this.manager.stage.container,this.scroller=this.element,this.element.style.WebkitOverflowScrolling="touch"),this.manager.settings.offset=this.layout.width,this.manager.settings.afterScrolledTimeout=2*this.settings.duration,this.isVertical="vertical"===this.manager.settings.axis,this.manager.isPaginated&&!this.isVertical&&(this.touchCanceler=!1,this.resizeCanceler=!1,this.snapping=!1,this.scrollLeft,this.scrollTop,this.startTouchX=void 0,this.startTouchY=void 0,this.startTime=void 0,this.endTouchX=void 0,this.endTouchY=void 0,this.endTime=void 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e=t.contents;["touchstart","touchmove","touchend"].forEach(t=>{e.on(t,t=>this.triggerViewEvent(t,e))})}triggerViewEvent(t,e){this.emit(t.type,t,e)}onScroll(t){this.scrollLeft=this.fullsize?window.scrollX:this.scroller.scrollLeft,this.scrollTop=this.fullsize?window.scrollY:this.scroller.scrollTop}onResize(t){this.resizeCanceler=!0}onTouchStart(t){let{screenX:e,screenY:i}=t.touches[0];this.fullsize&&this.enableScroll(),this.touchCanceler=!0,this.startTouchX||(this.startTouchX=e,this.startTouchY=i,this.startTime=this.now()),this.endTouchX=e,this.endTouchY=i,this.endTime=this.now()}onTouchMove(t){let{screenX:e,screenY:i}=t.touches[0],n=Math.abs(i-this.endTouchY);this.touchCanceler=!0,!this.fullsize&&n<10&&(this.element.scrollLeft-=e-this.endTouchX),this.endTouchX=e,this.endTouchY=i,this.endTime=this.now()}onTouchEnd(t){this.fullsize&&this.disableScroll(),this.touchCanceler=!1;let e=this.wasSwiped();0!==e?this.snap(e):this.snap(),this.startTouchX=void 0,this.startTouchY=void 0,this.startTime=void 0,this.endTouchX=void 0,this.endTouchY=void 0,this.endTime=void 0}wasSwiped(){let t=this.layout.pageWidth*this.layout.divisor,e=this.endTouchX-this.startTouchX,i=Math.abs(e),n=e/(this.endTime-this.startTime),s=this.settings.minVelocity;return i<=this.settings.minDistance||i>=t?0:n>s?-1:n<-s?1:void 0}needsSnap(){return this.scrollLeft%(this.layout.pageWidth*this.layout.divisor)!=0}snap(t=0){let e=this.scrollLeft,i=this.layout.pageWidth*this.layout.divisor,n=Math.round(e/i)*i;return t&&(n+=t*i),this.smoothScrollTo(n)}smoothScrollTo(t){const e=new n.defer,i=this.scrollLeft,s=this.now(),r=this.settings.duration,o=this.settings.easing;return this.snapping=!0,function n(){const a=this.now(),h=Math.min(1,(a-s)/r);if(o(h),this.touchCanceler||this.resizeCanceler)return this.resizeCanceler=!1,this.snapping=!1,void 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