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*
* Licensed under
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*
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o,s=e.length,a=0;for(0==r&&(i=n.createRange(),i.setStart(e,0)),o=this["break"]-r,o>s&&(r+=s,a=s);a<s;)r=this["break"],a+=this["break"],a>=s?r=s-(a-this["break"]):(i.setEnd(e,a),cfi=t.cfiFromRange(i),this._locations.push(cfi),r=0,a+=1,i=n.createRange(),i.setStart(e,a))}.bind(this)),i&&(i.setEnd(prev,prev.length),cfi=t.cfiFromRange(i),this._locations.push(cfi),r=0)}.bind(this))},n.prototype.sprint=function(t,e){for(var i=document.createTreeWalker(t,NodeFilter.SHOW_TEXT,null,!1);node=i.nextNode();)e(node);
},n.prototype.locationFromCfi=function(t){return 0===this._locations.length?-1:r.locationOf(t,this._locations,this.epubcfi.compare)},n.prototype.precentageFromCfi=function(t){var e=this.locationFromCfi(t);return this.precentageFromLocation(e)},n.prototype.percentageFromLocation=function(t){return t&&this.total?t/this.total:0},n.prototype.cfiFromLocation=function(t){var e=-1;return"number"!=typeof t&&(t=parseInt(pg)),t>=0&&t<this._locations.length&&(e=this._locations[t]),e},n.prototype.cfiFromPercentage=function(t){var e=t>1?t/100:t,i=Math.ceil(this.total*e);return this.cfiFromLocation(i)},n.prototype.load=function(t){return this._locations=JSON.parse(t),this.total=this._locations.length-1,this._locations},n.prototype.save=function(t){return JSON.stringify(this._locations)},n.prototype.getCurrent=function(t){return this._current},n.prototype.setCurrent=function(t){var e;if("string"==typeof t)this._currentCfi=t;else{if("number"!=typeof 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r=i(6),o=i(11),s=i(15);n.prototype.container=function(t){var e,i,n,s;return t?(e=o.qs(t,"rootfile"))?(i=e.getAttribute("full-path"),n=r(i).directory(),s=t.xmlEncoding,{packagePath:i,basePath:n,encoding:s}):void console.error("No RootFile Found"):void console.error("Container File Not Found")},n.prototype.identifier=function(t){var e;return t?(e=o.qs(t,"metadata"),e?this.getElementText(e,"identifier"):void console.error("No Metadata Found")):void console.error("Package File Not Found")},n.prototype.packageContents=function(t){var e,i,n,r,s,a,h,u,c,l,p=this;return t?(e=o.qs(t,"metadata"))?(i=o.qs(t,"manifest"))?(n=o.qs(t,"spine"))?(r=p.manifest(i),s=p.findNavPath(i),a=p.findNcxPath(i,n),h=p.findCoverPath(t),u=Array.prototype.indexOf.call(n.parentNode.childNodes,n),c=p.spine(n,r),l=p.metadata(e),l.direction=n.getAttribute("page-progression-direction"),{metadata:l,spine:c,manifest:r,navPath:s,ncxPath:a,coverPath:h,spineNodeIndex:u}):void console.error("No Spine Found"):void console.error("No Manifest Found"):void console.error("No Metadata Found"):void console.error("Package File Not Found")},n.prototype.findNavPath=function(t){var e=o.qsp(t,"item",{properties:"nav"});return!!e&&e.getAttribute("href")},n.prototype.findNcxPath=function(t,e){var i,n=o.qsp(t,"item",{"media-type":"application/x-dtbncx+xml"});return n||(i=e.getAttribute("toc"),i&&(n=t.getElementById(i))),!!n&&n.getAttribute("href")},n.prototype.metadata=function(t){var e={},i=this;return e.title=i.getElementText(t,"title"),e.creator=i.getElementText(t,"creator"),e.description=i.getElementText(t,"description"),e.pubdate=i.getElementText(t,"date"),e.publisher=i.getElementText(t,"publisher"),e.identifier=i.getElementText(t,"identifier"),e.language=i.getElementText(t,"language"),e.rights=i.getElementText(t,"rights"),e.modified_date=i.getPropertyText(t,"dcterms:modified"),e.layout=i.getPropertyText(t,"rendition:layout"),e.orientation=i.getPropertyText(t,"rendition:orientation"),e.flow=i.getPropertyText(t,"rendition:flow"),e.viewport=i.getPropertyText(t,"rendition:viewport"),e},n.prototype.findCoverPath=function(t){var e=o.qs(t,"package"),i=e.getAttribute("version");if("2.0"===i){var n=o.qsp(t,"meta",{name:"cover"});if(n){var r=n.getAttribute("content"),s=t.getElementById(r);return!!s&&s.getAttribute("href")}return!1}var a=o.qsp(t,"item",{properties:"cover-image"});return!!a&&a.getAttribute("href")},n.prototype.getElementText=function(t,e){var i,n=t.getElementsByTagNameNS("http://purl.org/dc/elements/1.1/",e);return n&&0!==n.length?(i=n[0],i.childNodes.length?i.childNodes[0].nodeValue:""):""},n.prototype.getPropertyText=function(t,e){var i=o.qsp(t,"meta",{property:e});return i&&i.childNodes.length?i.childNodes[0].nodeValue:""},n.prototype.querySelectorText=function(t,e){var i=t.querySelector(e);return i&&i.childNodes.length?i.childNodes[0].nodeValue:""},n.prototype.manifest=function(t){var e={},i=o.qsa(t,"item"),n=Array.prototype.slice.call(i);return n.forEach(function(t){var i=t.getAttribute("id"),n=t.getAttribute("href")||"",r=t.getAttribute("media-type")||"",o=t.getAttribute("properties")||"";e[i]={href:n,type:r,properties:o.length?o.split(" "):[]}}),e},n.prototype.spine=function(t,e){var i=[],n=t.getElementsByTagName("itemref"),r=Array.prototype.slice.call(n);new s;return r.forEach(function(t,e){var n=t.getAttribute("idref"),r=t.getAttribute("properties")||"",o=r.length?r.split(" 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c;for(n=0;n<h;++n)r=this.ncxItem(a[n],e,i),u[r.id]=r,r.parent?(s=u[r.parent],s.subitems.push(r)):c.push(r);return c},n.prototype.ncxItem=function(t,e,i){var n,r=t.getAttribute("id")||!1,s=o.qs(t,"content"),a=s.getAttribute("src"),h=o.qs(t,"navLabel"),u=h.textContent?h.textContent:"",c=[],l=t.parentNode;return l&&"navPoint"===l.nodeName&&(n=l.getAttribute("id")),{id:r,href:a,label:u,subitems:c,parent:n}},n.prototype.pageList=function(t,e,i){var n,r,s=this.querySelectorByType(t,"nav","page-list"),a=s?o.qsa(s,"li"):[],h=a.length,u=[];if(!a||0===h)return u;for(n=0;n<h;++n)r=this.pageListItem(a[n],e,i),u.push(r);return u},n.prototype.pageListItem=function(t,e,i){var n,r,s,a=(t.getAttribute("id")||!1,o.qs(t,"a")),h=a.getAttribute("href")||"",u=a.textContent||"",c=parseInt(u),l=h.indexOf("epubcfi");return l!=-1?(n=h.split("#"),r=n[0],s=n.length>1&&n[1],{cfi:s,href:h,packageUrl:r,page:c}):{href:h,page:c}},t.exports=n},function(t,e,i){function n(t,e){var n=this,a=new r,h=e||i(18);this["package"]=t,this.toc=[],this.tocByHref={},this.tocById={},t.navPath&&(this.navUrl=s(t.navPath).absoluteTo(t.baseUrl).toString(),this.nav={},this.nav.load=function(t){var e=new o.defer,i=e.promise;return h(n.navUrl,"xml").then(function(t){n.toc=a.nav(t),n.loaded(n.toc),e.resolve(n.toc)}),i}),t.ncxPath&&(this.ncxUrl=s(t.ncxPath).absoluteTo(t.baseUrl).toString(),this.ncx={},this.ncx.load=function(t){var e=new o.defer,i=e.promise;return h(n.ncxUrl,"xml").then(function(t){n.toc=a.toc(t),n.loaded(n.toc),e.resolve(n.toc)}),i})}var r=(i(11),i(22)),o=i(2),s=i(6);n.prototype.load=function(t){var e,n;t||i(18);return this.nav?e=this.nav.load():this.ncx?e=this.ncx.load():(n=new o.defer,n.resolve([]),e=n.promise),e},n.prototype.loaded=function(t){for(var e,i=0;i<t.length;i++)e=t[i],this.tocByHref[e.href]=i,this.tocById[e.id]=i},n.prototype.get=function(t){var e;return t?(0===t.indexOf("#")?e=this.tocById[t.substring(1)]:t in this.tocByHref&&(e=this.tocByHref[t]),this.toc[e]):this.toc},t.exports=n},function(t,e,i){function n(t,e){this.settings=s.extend(this.settings||{},{width:null,height:null,ignoreClass:"",manager:"single",view:"iframe",flow:null,layout:null,spread:null,minSpreadWidth:800,useBase64:!0}),s.extend(this.settings,e),this.viewSettings={ignoreClass:this.settings.ignoreClass},this.book=t,this.views=null,this.hooks={},this.hooks.display=new h(this),this.hooks.serialize=new h(this),this.hooks.content=new h(this),this.hooks.layout=new h(this),this.hooks.render=new h(this),this.hooks.show=new h(this),this.hooks.content.register(a.links.bind(this)),this.hooks.content.register(this.passViewEvents.bind(this)),this.epubcfi=new u,this.q=new c(this),this.q.enqueue(this.book.opened),this.q.enqueue(this.start),this.book.unarchived&&this.q.enqueue(this.replacements.bind(this))}var r=i(2),o=i(6),s=i(11),a=i(19),h=i(16),u=i(15),c=i(21),l=i(25),p=i(26);n.prototype.setManager=function(t){this.manager=t},n.prototype.requireManager=function(t){var e;return e="string"==typeof t?"undefined"!=typeof ePub?ePub.ViewManagers[t]:void 0:t},n.prototype.requireView=function(t){var e;return e="string"==typeof t?"undefined"!=typeof ePub?ePub.Views[t]:void 0:t},n.prototype.start=function(){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.request,settings:this.settings})),this.settings.globalLayoutProperties=this.determineLayoutProperties(this.book["package"].metadata),this.flow(this.settings.globalLayoutProperties.flow),this.layout(this.settings.globalLayoutProperties),this.manager.on("added",this.afterDisplayed.bind(this)),this.manager.on("resized",this.onResized.bind(this)),this.manager.on("scroll",this.reportLocation.bind(this)),this.on("displayed",this.reportLocation.bind(this)),this.trigger("started")},n.prototype.attachTo=function(t){return this.q.enqueue(function(){this.manager.render(t,{width:this.settings.width,height:this.settings.height}),this.trigger("attached")}.bind(this))},n.prototype.display=function(t){return this.q.enqueue(this._display,t)},n.prototype._display=function(t){var e,i,n=this.epubcfi.isCfiString(t),o=new r.defer,s=o.promise;return(e=this.book.spine.get(t))?(!n&&"string"==typeof t&&t.indexOf("#")>-1&&(i=t.substring(t.indexOf("#")+1)),n&&(i=t),this.manager.display(e,i).then(function(){this.trigger("displayed",e)}.bind(this))):(o.reject(new Error("No Section Found")),s)},n.prototype.afterDisplayed=function(t){this.hooks.content.trigger(t,this),this.trigger("rendered",t.section),this.reportLocation()},n.prototype.onResized=function(t){this.location&&this.display(this.location.start),this.trigger("resized",{width:t.width,height:t.height})},n.prototype.moveTo=function(t){this.manager.moveTo(t)},n.prototype.next=function(){return this.q.enqueue(this.manager.next.bind(this.manager)).then(this.reportLocation.bind(this))},n.prototype.prev=function(){return this.q.enqueue(this.manager.prev.bind(this.manager)).then(this.reportLocation.bind(this))},n.prototype.determineLayoutProperties=function(t){var e,i=this.settings.layout||t.layout||"reflowable",n=this.settings.spread||t.spread||"auto",r=this.settings.orientation||t.orientation||"auto",o=this.settings.flow||t.flow||"auto",s=t.viewport||"",a=this.settings.minSpreadWidth||t.minSpreadWidth||800;return this.settings.width>=0&&this.settings.height>=0&&(s="width="+this.settings.width+", height="+this.settings.height),e={layout:i,spread:n,orientation:r,flow:o,viewport:s,minSpreadWidth:a}},n.prototype.flow=function(t){var e;"scrolled-doc"!==t&&"scrolled-continuous"!==t||(e="scrolled"),"auto"!==t&&"paginated"!==t||(e="paginated"),this._layout&&this._layout.flow(e),this.manager&&this.manager.updateFlow(e)},n.prototype.layout=function(t){return t&&(this._layout=new l(t),this._layout.spread(t.spread,this.settings.minSpreadWidth),this.mapping=new p(this._layout)),this.manager&&this._layout&&this.manager.applyLayout(this._layout),this._layout},n.prototype.spread=function(t,e){this._layout.spread(t,e),this.manager.isRendered()&&this.manager.updateLayout()},n.prototype.reportLocation=function(){return this.q.enqueue(function(){var t=this.manager.currentLocation();t&&t.then&&"function"==typeof t.then?t.then(function(t){this.location=t,this.trigger("locationChanged",this.location)}.bind(this)):t&&(this.location=t,this.trigger("locationChanged",this.location))}.bind(this))},n.prototype.destroy=function(){this.q.clear(),this.manager.destroy()},n.prototype.passViewEvents=function(t){t.contents.listenedEvents.forEach(function(e){t.on(e,this.triggerViewEvent.bind(this))}.bind(this)),t.on("selected",this.triggerSelectedEvent.bind(this))},n.prototype.triggerViewEvent=function(t){this.trigger(t.type,t)},n.prototype.triggerSelectedEvent=function(t){this.trigger("selected",t)},n.prototype.replacements=function(){var t,e=this.book["package"].manifest,i=Object.keys(e).map(function(t){return e[t]}),n=i.filter(function(t){if("application/xhtml+xml"!=t.type&&"text/html"!=t.type)return!0}),s=n.filter(function(t){if("text/css"===t.type)return!0}),a=s.map(function(t){return t.href}),h=n.map(function(t){return t.href}.bind(this)),u=h.map(function(t){var e=o(t).absoluteTo(this.book.baseUrl).toString();return this.book.unarchived.createUrl(e,{base64:this.settings.useBase64})}.bind(this));return r.all(u).then(function(e){var i=[];return t=e,a.forEach(function(e){i.push(this.replaceCss(e,h,t))}.bind(this)),r.all(i)}.bind(this)).then(function(){this.book.spine.hooks.serialize.register(function(e,i){this.replaceAssets(i,h,t)}.bind(this))}.bind(this))["catch"](function(t){console.error(t)})},n.prototype.replaceCss=function(t,e,i){var n,h,u=o(t),c=u.absoluteTo(this.book.baseUrl).toString(),l=this.book.unarchived.getText(c),p=e.map(function(t){var 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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(){}.bind(this)).then(function(){this.settings.layout.format(this.contents),this.expand(),this.addListeners(),this.trigger("rendered",this.section)}.bind(this))["catch"](function(t){this.trigger("loaderror",t)}.bind(this))},n.prototype.size=function(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)},n.prototype.lock=function(t,e,i){var n,r=o.borders(this.element);n=this.iframe?o.borders(this.iframe):{width:0,height:0},"width"==t&&o.isNumber(e)&&(this.lockedWidth=e-r.width-n.width,this.resize(this.lockedWidth,e)),"height"==t&&o.isNumber(i)&&(this.lockedHeight=i-r.height-n.height,this.resize(e,this.lockedHeight)),"both"===t&&o.isNumber(e)&&o.isNumber(i)&&(this.lockedWidth=e-r.width-n.width,this.lockedHeight=i-r.height-n.height,this.resize(this.lockedWidth,this.lockedHeight)),this.displayed&&this.iframe&&this.expand()},n.prototype.expand=function(t){var e,i,n,r=this.lockedWidth,o=this.lockedHeight;this.iframe&&!this._expanding&&(this._expanding=!0,"horizontal"===this.settings.axis?(i=this.contents.textWidth(),i!=this._textWidth?(r=this.contentWidth(i),e=Math.ceil(r/(this.settings.layout.columnWidth+this.settings.layout.gap)),this.settings.layout.divisor>1&&"reflowable"===this.settings.layout.name&&e%2>0&&(r+=this.settings.layout.gap+this.settings.layout.columnWidth),this._textWidth=i,this._contentWidth=r):r=this._contentWidth):"vertical"===this.settings.axis&&(n=this.contents.textHeight(),n!=this._textHeight?(o=this.contentHeight(n),this._textHeight=n,this._contentHeight=o):o=this._contentHeight),(this._needsReframe||r!=this._width||o!=this._height)&&this.resize(r,o),this._expanding=!1)},n.prototype.contentWidth=function(t){var e,i;return e=this.iframe.style.width,this.iframe.style.width=(t||0)+"px",i=this.contents.scrollWidth(),this.iframe.style.width=e,i},n.prototype.contentHeight=function(t){var e,i;return e=this.iframe.style.height,this.iframe.style.height=(t||0)+"px",i=this.contents.scrollHeight(),this.iframe.style.height=e,i},n.prototype.resize=function(t,e){this.iframe&&(o.isNumber(t)&&(this.iframe.style.width=t+"px",this._width=t),o.isNumber(e)&&(this.iframe.style.height=e+"px",this._height=e),this.iframeBounds=o.bounds(this.iframe),this.reframe(this.iframeBounds.width,this.iframeBounds.height))},n.prototype.reframe=function(t,e){var i;o.isNumber(t)&&(this.element.style.width=t+"px"),o.isNumber(e)&&(this.element.style.height=e+"px"),this.prevBounds=this.elementBounds,this.elementBounds=o.bounds(this.element),i={width:this.elementBounds.width,height:this.elementBounds.height,widthDelta:this.elementBounds.width-this.prevBounds.width,heightDelta:this.elementBounds.height-this.prevBounds.height},this.onResize(this,i),this.trigger("resized",i)},n.prototype.load=function(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),this.supportsSrcdoc)this.iframe.srcdoc=t;else{if(this.document=this.iframe.contentDocument,!this.document)return e.reject(new Error("No Document Available")),i;this.iframe.contentDocument.open(),this.iframe.contentDocument.write(t),this.iframe.contentDocument.close()}return i},n.prototype.onLoad=function(t,e){this.window=this.iframe.contentWindow,this.document=this.iframe.contentDocument,this.contents=new a(this.document,this.document.body,this.section.cfiBase),this.rendering=!1;var i=this.document.querySelector("link[rel='canonical']");i?i.setAttribute("href",this.section.url):(i=this.document.createElement("link"),i.setAttribute("rel","canonical"),i.setAttribute("href",this.section.url),this.document.querySelector("head").appendChild(i)),this.contents.on("expand",function(){this.displayed&&this.iframe&&this.expand()}),e.resolve(this.contents)},n.prototype.setLayout=function(t){this.layout=t},n.prototype.setAxis=function(t){this.settings.axis=t},n.prototype.resizeListenters=function(){clearTimeout(this.expanding),this.expanding=setTimeout(this.expand.bind(this),350)},n.prototype.addListeners=function(){},n.prototype.removeListeners=function(t){},n.prototype.display=function(t){var e=new r.defer;return this.displayed?e.resolve(this):this.render(t).then(function(){this.trigger("displayed",this),this.onDisplayed(this),this.displayed=!0,e.resolve(this)}.bind(this)),e.promise},n.prototype.show=function(){this.element.style.visibility="visible",this.iframe&&(this.iframe.style.visibility="visible"),this.trigger("shown",this)},n.prototype.hide=function(){this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.stopExpanding=!0,this.trigger("hidden",this)},n.prototype.position=function(){return this.element.getBoundingClientRect()},n.prototype.locationOf=function(t){var e=this.iframe.getBoundingClientRect(),i=this.contents.locationOf(t,this.settings.ignoreClass);return{left:window.scrollX+e.left+i.left,top:window.scrollY+e.top+i.top}},n.prototype.onDisplayed=function(t){},n.prototype.onResize=function(t,e){},n.prototype.bounds=function(){return this.elementBounds||(this.elementBounds=o.bounds(this.element)),this.elementBounds},n.prototype.destroy=function(){this.displayed&&(this.displayed=!1,this.removeListeners(),this.stopExpanding=!0,this.element.removeChild(this.iframe),this.displayed=!1,this.iframe=null,this._textWidth=null,this._textHeight=null,this._width=null,this._height=null)},r.EventTarget.mixin(n.prototype),t.exports=n},function(t,e,i){function n(t){this.name="default",this.View=t.view,this.request=t.request,this.renditionQueue=t.queue,this.q=new a(this),this.settings=o.extend(this.settings||{},{infinite:!0,hidden:!1,width:void 0,height:void 0,axis:"vertical",ignoreClass:""}),o.extend(this.settings,t.settings||{}),this.viewSettings={ignoreClass:this.settings.ignoreClass,axis:this.settings.axis,layout:this.layout,width:0,height:0}}var r=i(2),o=i(11),s=(i(15),i(26)),a=i(21),h=i(33),u=i(34);n.prototype.render=function(t,e){this.stage=new h({width:e.width,height:e.height,overflow:this.settings.overflow,hidden:this.settings.hidden,axis:this.settings.axis}),this.stage.attachTo(t),this.container=this.stage.getContainer(),this.views=new u(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.addEventListeners(),this.layout&&this.updateLayout()},n.prototype.addEventListeners=function(){window.addEventListener("unload",function(t){this.destroy()}.bind(this))},n.prototype.destroy=function(){},n.prototype.onResized=function(t){clearTimeout(this.resizeTimeout),this.resizeTimeout=setTimeout(function(){this.resize()}.bind(this),150)},n.prototype.resize=function(t,e){this.q.clear(),this._stageSize=this.stage.size(t,e),this._bounds=this.bounds(),this.viewSettings.width=this._stageSize.width,this.viewSettings.height=this._stageSize.height,this.views.each(function(t){t.size(this._stageSize.width,this._stageSize.height)}.bind(this)),this.updateLayout(),this.trigger("resized",{width:this.stage.width,height:this.stage.height})},n.prototype.createView=function(t){return new this.View(t,this.viewSettings)},n.prototype.display=function(t,e){var i=new r.defer,n=i.promise,o=this.views.find(t);return o&&e?(offset=o.locationOf(e),this.moveTo(offset),i.resolve(),n):(this.views.hide(),this.views.clear(),this.add(t).then(function(){var e;if("pre-paginated"===this.layout.name&&this.layout.divisor>1&&(e=t.next()))return this.add(e)}.bind(this)).then(function(t){e&&(offset=t.locationOf(e),this.moveTo(offset)),this.views.show(),i.resolve()}.bind(this)),n)},n.prototype.afterDisplayed=function(t){this.trigger("added",t)},n.prototype.afterResized=function(t){this.trigger("resize",t.section)},n.prototype.moveTo=function(t){var e=0,i=0;"vertical"===this.settings.axis?i=t.top:(e=Math.floor(t.left/this.layout.delta)*this.layout.delta,e+this.layout.delta>this.container.scrollWidth&&(e=this.container.scrollWidth-this.layout.delta)),this.scrollTo(e,i)},n.prototype.add=function(t){var e=this.createView(t);return this.views.append(e),e.onDisplayed=this.afterDisplayed.bind(this),e.onResize=this.afterResized.bind(this),e.display(this.request)},n.prototype.append=function(t){var e=this.createView(t);return this.views.append(e),e.display(this.request)},n.prototype.prepend=function(t){var e=this.createView(t);return this.views.prepend(e),e.display(this.request)},n.prototype.next=function(){var t,e;if(this.views.length)return"horizontal"===this.settings.axis?(this.scrollLeft=this.container.scrollLeft,e=this.container.scrollLeft+this.container.offsetWidth+this.layout.delta,e<this.container.scrollWidth?this.scrollBy(this.layout.delta,0):e-this.layout.columnWidth===this.container.scrollWidth?this.scrollTo(this.container.scrollWidth-this.layout.delta,0):t=this.views.last().section.next()):t=this.views.last().section.next(),t?(this.views.clear(),this.append(t).then(function(){var e;if(this.layout.name&&this.layout.divisor>1&&(e=t.next()))return this.append(e)}.bind(this)).then(function(){this.views.show()}.bind(this))):void 0},n.prototype.prev=function(){var t,e;if(this.views.length)return"horizontal"===this.settings.axis?(this.scrollLeft=this.container.scrollLeft,e=this.container.scrollLeft,e>0?this.scrollBy(-this.layout.delta,0):t=this.views.first().section.prev()):t=this.views.first().section.prev(),t?(this.views.clear(),this.prepend(t).then(function(){var e;if(this.layout.name&&this.layout.divisor>1&&(e=t.prev()))return this.prepend(e)}.bind(this)).then(function(){"horizontal"===this.settings.axis&&this.scrollTo(this.container.scrollWidth-this.layout.delta,0),this.views.show()}.bind(this))):void 0},n.prototype.current=function(){var t=this.visible();return t.length?t[t.length-1]:null},n.prototype.currentLocation=function(){var t,e,i;if(this.views.length)return t=this.views.first(),e=container.left-t.position().left,i=e+this.layout.spread,this.mapping.page(t,t.section.cfiBase)},n.prototype.isVisible=function(t,e,i,n){var r=t.position(),o=n||this.bounds();return"horizontal"===this.settings.axis&&r.right>o.left-e&&r.left<o.right+i||"vertical"===this.settings.axis&&r.bottom>o.top-e&&r.top<o.bottom+i},n.prototype.visible=function(){for(var t,e,i=this.bounds(),n=this.views.displayed(),r=n.length,o=[],s=0;s<r;s++)e=n[s],t=this.isVisible(e,0,0,i),t===!0&&o.push(e);return o},n.prototype.scrollBy=function(t,e,i){i&&(this.ignore=!0),this.settings.height?(t&&(this.container.scrollLeft+=t),e&&(this.container.scrollTop+=e)):window.scrollBy(t,e),this.scrolled=!0,this.onScroll()},n.prototype.scrollTo=function(t,e,i){i&&(this.ignore=!0),this.settings.height?(this.container.scrollLeft=t,this.container.scrollTop=e):window.scrollTo(t,e),this.scrolled=!0,this.onScroll()},n.prototype.onScroll=function(){},n.prototype.bounds=function(){var t;return t=this.stage.bounds()},n.prototype.applyLayout=function(t){this.layout=t,this.updateLayout(),this.mapping=new s(this.layout)},n.prototype.updateLayout=function(){this.stage&&(this._stageSize=this.stage.size(),"vertical"===this.settings.axis?this.layout.calculate(this._stageSize.width,this._stageSize.height):(this.layout.calculate(this._stageSize.width,this._stageSize.height,this.settings.gap),this.settings.offset=this.layout.delta,this.stage.addStyleRules("iframe",[{"margin-right":this.layout.gap+"px"}])),this.viewSettings.width=this.layout.width,this.viewSettings.height=this.layout.height,this.setLayout(this.layout))},n.prototype.setLayout=function(t){this.viewSettings.layout=t,this.views&&this.views.each(function(e){e.setLayout(t)})},n.prototype.updateFlow=function(t){var e="paginated"===t?"horizontal":"vertical";this.settings.axis=e,this.viewSettings.axis=e,this.settings.overflow="paginated"===t?"hidden":"auto"},r.EventTarget.mixin(n.prototype),t.exports=n},function(t,e,i){function n(t){this.settings=t||{},this.id="epubjs-container-"+r.uuid(),this.container=this.create(this.settings),this.settings.hidden&&(this.wrapper=this.wrap(this.container))}var r=i(11);n.prototype.create=function(t){var e=t.height,i=t.width,n=t.overflow||!1,o=t.axis||"vertical";return t.height&&r.isNumber(t.height)&&(e=t.height+"px"),t.width&&r.isNumber(t.width)&&(i=t.width+"px"),container=document.createElement("div"),container.id=this.id,container.classList.add("epub-container"),container.style.wordSpacing="0",container.style.lineHeight="0",container.style.verticalAlign="top","horizontal"===o&&(container.style.whiteSpace="nowrap"),i&&(container.style.width=i),e&&(container.style.height=e),n&&(container.style.overflow=n),container},n.wrap=function(t){var e=document.createElement("div");return e.style.visibility="hidden",e.style.overflow="hidden",e.style.width="0",e.style.height="0",e.appendChild(t),e},n.prototype.getElement=function(t){var e;return r.isElement(t)?e=t:"string"==typeof t&&(e=document.getElementById(t)),e?e:void console.error("Not an Element")},n.prototype.attachTo=function(t){var e,i=this.getElement(t);if(i)return e=this.settings.hidden?this.wrapper:this.container,i.appendChild(e),this.element=i,i},n.prototype.getContainer=function(){return this.container},n.prototype.onResize=function(t){r.isNumber(this.settings.width)&&r.isNumber(this.settings.height)||window.addEventListener("resize",t,!1)},n.prototype.size=function(t,e){var i;return null===t&&(i=this.element.getBoundingClientRect(),i.width&&(t=i.width,this.container.style.width=i.width+"px")),null===e&&(i=i||this.element.getBoundingClientRect(),i.height&&(e=i.height,this.container.style.height=i.height+"px")),r.isNumber(t)||(i=this.container.getBoundingClientRect(),t=i.width),r.isNumber(e)||(i=i||this.container.getBoundingClientRect(),e=i.height),this.containerStyles=window.getComputedStyle(this.container),this.containerPadding={left:parseFloat(this.containerStyles["padding-left"])||0,right:parseFloat(this.containerStyles["padding-right"])||0,top:parseFloat(this.containerStyles["padding-top"])||0,bottom:parseFloat(this.containerStyles["padding-bottom"])||0},{width:t-this.containerPadding.left-this.containerPadding.right,height:e-this.containerPadding.top-this.containerPadding.bottom}},n.prototype.bounds=function(){return this.container?this.container.getBoundingClientRect():r.windowBounds()},n.prototype.getSheet=function(){var t=document.createElement("style");return t.appendChild(document.createTextNode("")),document.head.appendChild(t),t.sheet},n.prototype.addStyleRules=function(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)},t.exports=n},function(t,e){function i(t){this.container=t,this._views=[],this.length=0,this.hidden=!1}i.prototype.all=function(){return this._views},i.prototype.first=function(){return this._views[0]},i.prototype.last=function(){return this._views[this._views.length-1]},i.prototype.indexOf=function(t){return this._views.indexOf(t)},i.prototype.slice=function(){return this._views.slice.apply(this._views,arguments)},i.prototype.get=function(t){return this._views[t]},i.prototype.append=function(t){return this._views.push(t),this.container&&this.container.appendChild(t.element),this.length++,t},i.prototype.prepend=function(t){return this._views.unshift(t),this.container&&this.container.insertBefore(t.element,this.container.firstChild),this.length++,t},i.prototype.insert=function(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},i.prototype.remove=function(t){var e=this._views.indexOf(t);e>-1&&this._views.splice(e,1),this.destroy(t),this.length--},i.prototype.destroy=function(t){t.off("resized"),t.displayed&&t.destroy(),this.container&&this.container.removeChild(t.element),t=null},i.prototype.each=function(){return this._views.forEach.apply(this._views,arguments)},i.prototype.clear=function(){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}},i.prototype.find=function(t){for(var e,i=this.length,n=0;n<i;n++)if(e=this._views[n],e.displayed&&e.section.index==t.index)return e},i.prototype.displayed=function(){for(var t,e=[],i=this.length,n=0;n<i;n++)t=this._views[n],t.displayed&&e.push(t);return e},i.prototype.show=function(){for(var t,e=this.length,i=0;i<e;i++)t=this._views[i],t.displayed&&t.show();this.hidden=!1},i.prototype.hide=function(){for(var t,e=this.length,i=0;i<e;i++)t=this._views[i],t.displayed&&t.hide();this.hidden=!0},t.exports=i},function(t,e,i){function n(t){s.apply(this,arguments),this.name="continuous",this.settings=o.extend(this.settings||{},{infinite:!0,overflow:"auto",axis:"vertical",offset:500,offsetDelta:250,width:void 0,height:void 0}),o.extend(this.settings,t.settings||{}),"undefined"!=t.settings.gap&&0===t.settings.gap&&(this.settings.gap=t.settings.gap),this.viewSettings={ignoreClass:this.settings.ignoreClass,axis:this.settings.axis,layout:this.layout,width:0,height:0},this.scrollTop=0,this.scrollLeft=0}var r=i(2),o=i(11),s=i(32);n.prototype=Object.create(s.prototype),n.prototype.constructor=n,n.prototype.display=function(t,e){return s.prototype.display.call(this,t,e).then(function(){return this.fill()}.bind(this))},n.prototype.fill=function(t){var e=t||new r.defer;return this.check().then(function(t){t?this.fill(e):e.resolve()}.bind(this)),e.promise},n.prototype.moveTo=function(t){var e=0,i=0,n=0,r=0;return"vertical"===this.settings.axis?(i=t.top,r=t.top+this.settings.offset):(e=Math.floor(t.left/this.layout.delta)*this.layout.delta,n=e+this.settings.offset),this.check(n,r).then(function(){this.scrollBy(e,i)}.bind(this))},n.prototype.resize=function(t,e){this.q.clear(),this._stageSize=this.stage.size(t,e),this._bounds=this.bounds(),this.viewSettings.width=this._stageSize.width,this.viewSettings.height=this._stageSize.height,this.views.each(function(t){t.size(this._stageSize.width,this._stageSize.height)}.bind(this)),this.updateLayout(),this.trigger("resized",{width:this.stage.width,height:this.stage.height})},n.prototype.onResized=function(t){clearTimeout(this.resizeTimeout),this.resizeTimeout=setTimeout(function(){this.resize()}.bind(this),150)},n.prototype.afterResized=function(t){this.trigger("resize",t.section)},n.prototype.removeShownListeners=function(t){t.onDisplayed=function(){}},n.prototype.append=function(t){var e=this.createView(t);return this.views.append(e),e},n.prototype.prepend=function(t){var e=this.createView(t);return e.on("resized",this.counter.bind(this)),this.views.prepend(e),e},n.prototype.counter=function(t){"vertical"===this.settings.axis?this.scrollBy(0,t.heightDelta,!0):this.scrollBy(t.widthDelta,0,!0)},n.prototype.update=function(t){for(var e,i,n=this.bounds(),o=this.views.all(),s=o.length,a=[],h="undefined"!=typeof t?t:this.settings.offset||0,u=new r.defer,c=[],l=0;l<s;l++)i=o[l],e=this.isVisible(i,h,h,n),e===!0?(i.displayed||c.push(i.display(this.request).then(function(t){t.show()})),a.push(i)):(this.q.enqueue(i.destroy.bind(i)),clearTimeout(this.trimTimeout),this.trimTimeout=setTimeout(function(){this.q.enqueue(this.trim.bind(this))}.bind(this),250));return c.length?r.all(c):(u.resolve(),u.promise)},n.prototype.check=function(t,e){var i,n,o,s,a=new r.defer,h=[],u="horizontal"===this.settings.axis,c=this.settings.offset||0;t&&u&&(c=t),e&&!u&&(c=e);var l=this._bounds,p=u?this.scrollLeft:this.scrollTop,d=u?l.width:l.height,f=u?this.container.scrollWidth:this.container.scrollHeight;return p+d+c>=f&&(i=this.views.last(),o=i&&i.section.next(),o&&h.push(this.append(o))),p-c<0&&(n=this.views.first(),s=n&&n.section.prev(),s&&h.push(this.prepend(s))),h.length?this.q.enqueue(function(){return this.update(c)}.bind(this)):(a.resolve(!1),a.promise)},n.prototype.trim=function(){for(var t=new r.defer,e=this.views.displayed(),i=e[0],n=e[e.length-1],o=this.views.indexOf(i),s=this.views.indexOf(n),a=this.views.slice(0,o),h=this.views.slice(s+1),u=0;u<a.length-1;u++)this.erase(a[u],a);for(var c=1;c<h.length;c++)this.erase(h[c]);return t.resolve(),t.promise},n.prototype.erase=function(t,e){var i,n;this.settings.height?(i=this.container.scrollTop,n=this.container.scrollLeft):(i=window.scrollY,n=window.scrollX);var r=t.bounds();this.views.remove(t),e&&("vertical"===this.settings.axis?this.scrollTo(0,i-r.height,!0):this.scrollTo(n-r.width,0,!0))},n.prototype.addEventListeners=function(t){window.addEventListener("unload",function(t){this.ignore=!0,this.destroy()}.bind(this)),this.addScrollListeners()},n.prototype.addScrollListeners=function(){var t;this.tick=o.requestAnimationFrame,this.settings.height?(this.prevScrollTop=this.container.scrollTop,this.prevScrollLeft=this.container.scrollLeft):(this.prevScrollTop=window.scrollY,this.prevScrollLeft=window.scrollX),this.scrollDeltaVert=0,this.scrollDeltaHorz=0,this.settings.height?(t=this.container,this.scrollTop=this.container.scrollTop,this.scrollLeft=this.container.scrollLeft):(t=window,this.scrollTop=window.scrollY,this.scrollLeft=window.scrollX),t.addEventListener("scroll",this.onScroll.bind(this)),this.scrolled=!1},n.prototype.onScroll=function(){this.settings.height?(scrollTop=this.container.scrollTop,scrollLeft=this.container.scrollLeft):(scrollTop=window.scrollY,scrollLeft=window.scrollX),this.scrollTop=scrollTop,this.scrollLeft=scrollLeft,this.ignore?this.ignore=!1:(0===this.scrollDeltaVert&&0===this.scrollDeltaHorz||this.scrollDeltaVert>this.settings.offsetDelta||this.scrollDeltaHorz>this.settings.offsetDelta)&&(this.q.enqueue(function(){this.check()}.bind(this)),this.scrollDeltaVert=0,this.scrollDeltaHorz=0,this.trigger("scroll",{top:scrollTop,left:scrollLeft}),clearTimeout(this.afterScrolled),this.afterScrolled=setTimeout(function(){this.trigger("scrolled",{top:this.scrollTop,left:this.scrollLeft})}.bind(this))),this.scrollDeltaVert+=Math.abs(scrollTop-this.prevScrollTop),this.scrollDeltaHorz+=Math.abs(scrollLeft-this.prevScrollLeft),this.prevScrollTop=scrollTop,this.prevScrollLeft=scrollLeft,clearTimeout(this.scrollTimeout),this.scrollTimeout=setTimeout(function(){this.scrollDeltaVert=0,this.scrollDeltaHorz=0}.bind(this),150),this.scrolled=!1},n.prototype.currentLocation=function(){return"vertical"===this.settings.axis?this.location=this.scrolledLocation():this.location=this.paginatedLocation(),this.location},n.prototype.scrolledLocation=function(){var t,e,i=this.visible();this.container.getBoundingClientRect();return 1===i.length?this.mapping.page(i[0].contents,i[0].section.cfiBase):i.length>1?(t=this.mapping.page(i[0].contents,i[0].section.cfiBase),e=this.mapping.page(i[i.length-1].contents,i[i.length-1].section.cfiBase),{start:t.start,end:e.end}):void 0},n.prototype.paginatedLocation=function(){var t,e,i,n,r,o,s=this.visible(),a=this.container.getBoundingClientRect();return 1===s.length?(t=a.left-s[0].position().left,i=t+this.layout.spreadWidth,this.mapping.page(s[0].contents,s[0].section.cfiBase,t,i)):s.length>1?(t=a.left-s[0].position().left,i=t+this.layout.columnWidth,e=a.left+this.layout.spreadWidth-s[s.length-1].position().left,n=e+this.layout.columnWidth,r=this.mapping.page(s[0].contents,s[0].section.cfiBase,t,i),o=this.mapping.page(s[s.length-1].contents,s[s.length-1].section.cfiBase,e,n),{start:r.start,end:o.end}):void 0},n.prototype.updateLayout=function(){this.stage&&("vertical"===this.settings.axis?this.layout.calculate(this._stageSize.width,this._stageSize.height):(this.layout.calculate(this._stageSize.width,this._stageSize.height,this.settings.gap),this.settings.offset=this.layout.delta,this.stage.addStyleRules("iframe",[{"margin-right":this.layout.gap+"px"}])),this.viewSettings.width=this.layout.width,this.viewSettings.height=this.layout.height,this.setLayout(this.layout))},n.prototype.next=function(){"horizontal"===this.settings.axis?(this.scrollLeft=this.container.scrollLeft,this.container.scrollLeft+this.container.offsetWidth+this.layout.delta<this.container.scrollWidth?this.scrollBy(this.layout.delta,0):this.scrollTo(this.container.scrollWidth-this.layout.delta,0)):this.scrollBy(0,this.layout.height)},n.prototype.prev=function(){"horizontal"===this.settings.axis?this.scrollBy(-this.layout.delta,0):this.scrollBy(0,-this.layout.height)},n.prototype.updateFlow=function(t){var e="paginated"===t?"horizontal":"vertical";this.settings.axis=e,this.viewSettings.axis=e,this.settings.overflow="paginated"===t?"hidden":"auto","vertical"===this.settings.axis?this.settings.infinite=!0:this.settings.infinite=!1},t.exports=n}])});
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