From f998e5be0ae6317bbfa93136772e2d86c6917f15 Mon Sep 17 00:00:00 2001
From: Fred Chasen <fchasen@gmail.com>
Date: Mon, 25 May 2015 20:30:07 -0400
Subject: [PATCH] Added windowBounds, enqueue checks after render

---
 dist/epub.js             | 30 ++++++++++++++++++------------
 dist/epub.min.js         |  4 ++--
 lib/epubjs/continuous.js | 14 ++------------
 lib/epubjs/core.js       | 16 ++++++++++++++++
 4 files changed, 38 insertions(+), 26 deletions(-)

diff --git a/dist/epub.js b/dist/epub.js
index 841ed7f..e8eb96c 100644
--- a/dist/epub.js
+++ b/dist/epub.js
@@ -2715,6 +2715,22 @@ EPUBJS.core.borders = function(el) {
     width: width
   }
 
+};
+
+EPUBJS.core.windowBounds = function() {
+
+  var width = window.innerWidth;
+  var height = window.innerHeight;
+  
+  return {
+    top: 0,
+    left: 0,
+    right: width,
+    bottom: height,
+    width: width,
+    height: height
+  }
+
 };
 EPUBJS.Queue = function(_context){
   this._q = [];
@@ -5605,18 +5621,8 @@ EPUBJS.Continuous.prototype.check = function(){
 	var checking = new RSVP.defer();
 	var container;//this.container.getBoundingClientRect();
 
-	// Temp
 	if(!this.settings.height) {
-		var width = window.innerWidth;
-		var height = window.innerHeight;
-		container = {
-			top: 0,
-			left: 0,
-			right: width,
-			bottom: height,
-			width: width,
-			height: height
-		}
+		container = EPUBJS.core.windowBounds();
 	} else {
 		container = this.container.getBoundingClientRect();
 	}
@@ -5634,7 +5640,7 @@ EPUBJS.Continuous.prototype.check = function(){
 							.then(function(){
 							
 								// Check to see if anything new is on screen after rendering
-								return this.check();
+								this.q.enqueue(this.check);
 
 							}.bind(this));
 				});
diff --git a/dist/epub.min.js b/dist/epub.min.js
index add68a0..ed825d9 100644
--- a/dist/epub.min.js
+++ b/dist/epub.min.js
@@ -1,2 +1,2 @@
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r(i.ncxUrl,"xml").then(function(e){i.toc=n.ncx(e),i.loaded(i.toc),t.resolve(i.toc)}),e})},EPUBJS.Navigation.prototype.load=function(t){{var e,i;t||EPUBJS.core.request}return this.nav?e=this.nav.load():this.ncx?e=this.ncx.load():(i=new RSVP.defer,i.resolve([]),e=i.promise),e},EPUBJS.Navigation.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},EPUBJS.Navigation.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},EPUBJS.Section=function(t){this.idref=t.idref,this.linear=t.linear,this.properties=t.properties,this.index=t.index,this.href=t.href,this.url=t.url,this.cfiBase=t.cfiBase,this.next=t.next,this.prev=t.prev,this.hooks={},this.hooks.replacements=new EPUBJS.Hook(this),this.hooks.replacements.register(this.replacements)},EPUBJS.Section.prototype.load=function(t){var e=t||this.request||EPUBJS.core.request,i=new RSVP.defer,n=i.promise;return this.contents?i.resolve(this.contents):e(this.url,"xml").then(function(t){EPUBJS.core.folder(this.url);return this.document=t,this.contents=t.documentElement,this.hooks.replacements.trigger(this.document)}.bind(this)).then(function(){i.resolve(this.contents)}.bind(this)).catch(function(t){i.reject(t)}),n},EPUBJS.Section.prototype.replacements=function(t){var e,i=new RSVP.defer,n=t.createElement("base");return n.setAttribute("href",this.url),t&&(e=t.querySelector("head")),e?(e.insertBefore(n,e.firstChild),i.resolve()):i.reject(new Error("No head to insert into")),i.promise},EPUBJS.Section.prototype.beforeSectionLoad=function(){},EPUBJS.Section.prototype.render=function(t){var e=new RSVP.defer,i=e.promise;return this.load(t).then(function(t){var i=new XMLSerializer,n=i.serializeToString(t);e.resolve(n)}).catch(function(t){e.reject(t)}),i},EPUBJS.Section.prototype.find=function(){},EPUBJS.Section.prototype.reconcileLayoutSettings=function(t){var e={layout:t.layout,spread:t.spread,orientation:t.orientation};return this.properties.forEach(function(t){var i,n,r=t.replace("rendition:",""),o=r.indexOf("-");-1!=o&&(i=r.slice(0,o),n=r.slice(o+1),e[i]=n)}),e},EPUBJS.Spine=function(t){this.request=t,this.spineItems=[],this.spineByHref={},this.spineById={}},EPUBJS.Spine.prototype.load=function(t){this.items=t.spine,this.manifest=t.manifest,this.spineNodeIndex=t.spineNodeIndex,this.baseUrl=t.baseUrl||"",this.length=this.items.length,this.epubcfi=new EPUBJS.EpubCFI,this.items.forEach(function(t,e){var i,n=this.manifest[t.idref];t.cfiBase=this.epubcfi.generateChapterComponent(this.spineNodeIndex,t.index,t.idref),n&&(t.href=n.href,t.url=this.baseUrl+t.href,n.properties.length&&t.properties.push.apply(t.properties,n.properties)),t.prev=function(){return this.get(e-1)}.bind(this),t.next=function(){return this.get(e+1)}.bind(this),i=new EPUBJS.Section(t),this.append(i)}.bind(this))},EPUBJS.Spine.prototype.get=function(t){var e=0;return!t||"number"!=typeof t&&isNaN(t)!==!1?t&&0===t.indexOf("#")?e=this.spineById[t.substring(1)]:t&&(t=t.split("#")[0],e=this.spineByHref[t]):e=t,this.spineItems[e]||null},EPUBJS.Spine.prototype.append=function(t){var e=this.spineItems.length;return t.index=e,this.spineItems.push(t),this.spineByHref[t.href]=e,this.spineById[t.idref]=e,e},EPUBJS.Spine.prototype.prepend=function(t){this.spineItems.unshift(t);return this.spineByHref[t.href]=0,this.spineById[t.idref]=0,this.spineItems.forEach(function(t,e){t.index=e}),0},EPUBJS.Spine.prototype.insert=function(){},EPUBJS.Spine.prototype.remove=function(t){var e=this.spineItems.indexOf(t);return e>-1?(delete this.spineByHref[t.href],delete this.spineById[t.idref],this.spineItems.splice(e,1)):void 0},EPUBJS.replace={},EPUBJS.replace.links=function(t,e){for(var i=new RSVP.defer,n=t.document.querySelectorAll("a[href]"),r=function(t){var i=t.getAttribute("href"),n=new EPUBJS.core.uri(i);n.protocol?t.setAttribute("target","_blank"):0===i.indexOf("#")||(t.onclick=function(){return e.display(i),!1})},o=0;o<n.length;o++)r(n[o]);return i.resolve(),i.promise},EPUBJS.Book=function(t){this.opening=new RSVP.defer,this.opened=this.opening.promise,this.isOpen=!1,this.url=void 0,this.spine=new EPUBJS.Spine(this.request),this.loading={manifest:new RSVP.defer,spine:new RSVP.defer,metadata:new RSVP.defer,cover:new RSVP.defer,navigation:new RSVP.defer,pageList:new RSVP.defer},this.loaded={manifest:this.loading.manifest.promise,spine:this.loading.spine.promise,metadata:this.loading.metadata.promise,cover:this.loading.cover.promise,navigation:this.loading.navigation.promise,pageList:this.loading.pageList.promise},this.ready=RSVP.hash(this.loaded),this.isRendered=!1,this._q=EPUBJS.core.queue(this),this.request=this.requestMethod.bind(this),t&&this.open(t)},EPUBJS.Book.prototype.open=function(t){var e,i,n,r=new EPUBJS.Parser,o=this,s="META-INF/container.xml";return t?(e="object"==typeof t?t:EPUBJS.core.uri(t),"opf"===e.extension?(this.packageUrl=e.href,this.containerUrl="",e.origin?this.url=e.base:window?(n=EPUBJS.core.uri(window.location.href),this.url=EPUBJS.core.resolveUrl(n.base,e.directory)):this.url=e.directory,i=this.request(this.packageUrl)):"epub"===e.extension||"zip"===e.extension?(this.archived=!0,this.url=""):e.extension||(this.containerUrl=t+s,i=this.request(this.containerUrl).then(function(t){return r.container(t)}).then(function(e){var i=EPUBJS.core.uri(e.packagePath);return o.packageUrl=t+e.packagePath,o.encoding=e.encoding,i.origin?o.url=i.base:window?(n=EPUBJS.core.uri(window.location.href),o.url=EPUBJS.core.resolveUrl(n.base,t+i.directory)):o.url=i.directory,o.request(o.packageUrl)}).catch(function(t){console.error("Could not load book at: "+(this.packageUrl||this.containerPath)),o.trigger("book:loadFailed",this.packageUrl||this.containerPath),o.opening.reject(t)})),i.then(function(t){o.unpack(t),o.loading.manifest.resolve(o.package.manifest),o.loading.metadata.resolve(o.package.metadata),o.loading.spine.resolve(o.spine),o.loading.cover.resolve(o.cover),this.isOpen=!0,o.opening.resolve(o)}).catch(function(t){console.error(t.message,t.stack),o.opening.reject(t)}),this.opened):(this.opening.resolve(this),this.opened)},EPUBJS.Book.prototype.unpack=function(t){var e=this,i=new EPUBJS.Parser;e.package=i.packageContents(t),e.package.baseUrl=e.url,this.spine.load(e.package),e.navigation=new EPUBJS.Navigation(e.package,this.request),e.navigation.load().then(function(t){e.toc=t,e.loading.navigation.resolve(e.toc)}),e.cover=e.url+e.package.coverPath},EPUBJS.Book.prototype.section=function(t){return this.spine.get(t)},EPUBJS.Book.prototype.renderTo=function(t,e){var i=e&&e.method?e.method.charAt(0).toUpperCase()+e.method.substr(1):"Rendition";return this.rendition=new EPUBJS[i](this,e),this.rendition.attachTo(t),this.rendition},EPUBJS.Book.prototype.requestMethod=function(t){return this.archived?void 0:EPUBJS.core.request(t,"xml",this.requestCredentials,this.requestHeaders)},EPUBJS.Book.prototype.setRequestCredentials=function(t){this.requestCredentials=t},EPUBJS.Book.prototype.setRequestHeaders=function(t){this.requestHeaders=t},RSVP.EventTarget.mixin(EPUBJS.Book.prototype),RSVP.on("error",function(){}),RSVP.configure("instrument",!0),RSVP.on("rejected",function(t){console.error(t.detail.message,t.detail.stack)}),EPUBJS.View=function(t,e){this.settings=e||{},this.id="epubjs-view:"+EPUBJS.core.uuid(),this.displaying=new RSVP.defer,this.displayed=this.displaying.promise,this.section=t,this.index=t.index,this.element=document.createElement("div"),this.element.classList.add("epub-view"),this.element.style.height="0px",this.element.style.width="0px",this.element.style.overflow="hidden",this.shown=!1,this.rendered=!1,this.element.style.display=this.settings.axis&&"horizontal"==this.settings.axis?"inline-block":"block"},EPUBJS.View.prototype.create=function(){return this.iframe?this.iframe:(this.iframe=document.createElement("iframe"),this.iframe.id=this.id,this.iframe.scrolling="no",this.iframe.seamless="seamless",this.iframe.style.border="none",this.resizing=!0,this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.element.appendChild(this.iframe),this.rendered=!0,this.elementBounds=EPUBJS.core.bounds(this.element),this.supportsSrcdoc="srcdoc"in this.iframe?!0:!1,this.iframe)},EPUBJS.View.prototype.lock=function(t,e){var i,n=EPUBJS.core.borders(this.element);i=this.iframe?EPUBJS.core.borders(this.iframe):{width:0,height:0},EPUBJS.core.isNumber(t)&&(this.lockedWidth=t-n.width-i.width,this.resize(this.lockedWidth,0)),EPUBJS.core.isNumber(e)&&(this.lockedHeight=e-n.height-i.height,this.resize(0,this.lockedHeight)),this.shown&&this.iframe&&!this.resizing&&this.expand()},EPUBJS.View.prototype.resize=function(t,e){this.iframe&&(EPUBJS.core.isNumber(t)&&(this.iframe.style.width=t+"px"),EPUBJS.core.isNumber(e)&&(this.iframe.style.height=e+"px"),this.iframeBounds=EPUBJS.core.bounds(this.iframe),this.reframe(this.iframeBounds.width,this.iframeBounds.height))},EPUBJS.View.prototype.reframe=function(t,e){var i;this.shown&&(EPUBJS.core.isNumber(t)&&(this.element.style.width=t+"px"),EPUBJS.core.isNumber(e)&&(this.element.style.height=e+"px"),i=this.elementBounds,this.elementBounds=EPUBJS.core.bounds(this.element),this.trigger("resized",{width:this.elementBounds.width,height:this.elementBounds.height,widthDelta:this.elementBounds.width-i.width,heightDelta:this.elementBounds.height-i.height}))},EPUBJS.View.prototype.resized=function(){},EPUBJS.View.prototype.display=function(t){return this.section.render(t).then(function(t){return this.load(t)}.bind(this)).then(this.displaying.resolve.call(this))},EPUBJS.View.prototype.load=function(t){var e=new RSVP.defer,i=e.promise;return this.document=this.iframe.contentDocument,this.document?(this.iframe.addEventListener("load",function(){this.window=this.iframe.contentWindow,this.document=this.iframe.contentDocument,e.resolve(this)}.bind(this)),this.supportsSrcdoc?this.iframe.srcdoc=t:(this.document.open(),this.document.write(t),this.document.close()),i):(e.reject(new Error("No Document Available")),i)},EPUBJS.View.prototype.layout=function(t){this.iframe.style.display="inline-block",this.document.body.style.margin="0",t&&t(this),this.onLayout(this)},EPUBJS.View.prototype.onLayout=function(){},EPUBJS.View.prototype.listeners=function(){this.section.properties.indexOf("scripted")>-1&&(this.observer=this.observe(this.document.body)),this.imageLoadListeners(),this.mediaQueryListeners()},EPUBJS.View.prototype.expand=function(){var t=this.lockedWidth,e=this.lockedHeight;t&&!e&&(e=this.document.documentElement.scrollHeight),e&&!t&&(t=this.document.body.scrollWidth),this.resize(t,e)},EPUBJS.View.prototype.mediaQueryListeners=function(){for(var t=this.document.styleSheets,e=function(t){t.matches&&this.expand()}.bind(this),i=0;i<t.length;i+=1)for(var n=t[i].cssRules,r=0;r<n.length;r+=1)if(n[r].media){var o=this.window.matchMedia(n[r].media.mediaText);o.addListener(e)}},EPUBJS.View.prototype.observe=function(t){var e=this,i=new MutationObserver(function(){e.expand()}),n={attributes:!0,childList:!0,characterData:!0,subtree:!0};return i.observe(t,n),i},EPUBJS.View.prototype.imageLoadListeners=function(){for(var t,e=this.document.body.querySelectorAll("img"),i=0;i<e.length;i++)t=e[i],"undefined"!=typeof t.naturalWidth&&0===t.naturalWidth&&(t.onload=this.expand.bind(this))},EPUBJS.View.prototype.show=function(){var t=new RSVP.defer;return this.shown=!0,this.layout(),this.listeners(),this.expand(),this.element.style.visibility="visible",this.iframe.style.visibility="visible",this.trigger("shown",this),this.onShown(this),t.resolve(this),t.promise},EPUBJS.View.prototype.hide=function(){this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.stopExpanding=!0,this.trigger("hidden")},EPUBJS.View.prototype.position=function(){return this.element.getBoundingClientRect()},EPUBJS.View.prototype.onShown=function(){},EPUBJS.View.prototype.bounds=function(){return this.elementBounds||(this.elementBounds=EPUBJS.core.bounds(this.element)),this.elementBounds},EPUBJS.View.prototype.destroy=function(){this.observer&&this.observer.disconnect(),this.iframe&&(this.stopExpanding=!0,this.element.removeChild(this.iframe),this.shown=!1,this.iframe=null)},RSVP.EventTarget.mixin(EPUBJS.View.prototype),EPUBJS.Layout=EPUBJS.Layout||{},EPUBJS.Layout.Reflowable=function(t,e,i,n){var r,o,s=n||1,a=Math.floor(t),h=a%2===0?a:a-1,u=Math.floor(h/8),c=i>=0?i:u%2===0?u:u-1;return r=s>1?Math.floor((h-c)/s):h,o=(r+c)*s,this.columnAxis=EPUBJS.core.prefixed("columnAxis"),this.columnGap=EPUBJS.core.prefixed("columnGap"),this.columnWidth=EPUBJS.core.prefixed("columnWidth"),this.columnFill=EPUBJS.core.prefixed("columnFill"),this.width=h,this.height=e,this.spread=o,this.column=r,this.gap=c,this.divisor=s,this},EPUBJS.Layout.Reflowable.prototype.format=function(t){var e=t.document.documentElement,i=t.document.body;e.style.overflow="hidden",i.style.width=this.width+"px",i.style.height=this.height+"px",i.style[this.columnAxis]="horizontal",i.style[this.columnFill]="auto",i.style[this.columnGap]=this.gap+"px",i.style[this.columnWidth]=this.column+"px",t.iframe.style.marginRight=this.gap+"px"},EPUBJS.Layout.Reflowable.prototype.count=function(t){var e=t.documentElement.scrollWidth,i=Math.ceil(e/this.spreadWidth);return{spreads:i,pages:i*this.divisor}},EPUBJS.Layout.Fixed=function(){},EPUBJS.Layout.Fixed.prototype.format=function(t){var e,i,n=t.document.documentElement,r=documentElement.querySelector("[name=viewport");r&&r.hasAttribute("content")&&(content=r.getAttribute("content"),contents=content.split(","),contents[0]&&(e=contents[0].replace("width=","")),contents[1]&&(i=contents[1].replace("height=",""))),t.resize(e,i),n.style.overflow="auto"},EPUBJS.Layout.Fixed.prototype.count=function(){return{spreads:1,pages:1}},EPUBJS.Layout.Scroll=function(){},EPUBJS.Layout.Scroll.prototype.format=function(t){var e=t.document.documentElement;e.style.width="auto",e.style.height="auto"},EPUBJS.Layout.Scroll.prototype.count=function(){return{spreads:1,pages:1}},EPUBJS.Rendition=function(t,e){this.settings=EPUBJS.core.extend(this.settings||{},{infinite:!0,hidden:!1,width:!1,height:!1,layoutOveride:null}),EPUBJS.core.extend(this.settings,e),this.viewSettings={},this.book=t,this.settings.hidden&&(this.wrapper=this.wrap(this.container)),this.views=[],this.hooks={},this.hooks.layout=new EPUBJS.Hook(this),this.hooks.replacements=new EPUBJS.Hook(this),this.hooks.replacements.register(EPUBJS.replace.links.bind(this)),this.q=new EPUBJS.Queue(this),this.q.enqueue(this.book.opened),this.book.opened.then(function(){this.globalLayoutProperties=this.parseLayoutProperties(this.book.package.metadata)}.bind(this))},EPUBJS.Rendition.prototype.initialize=function(t){{var e,i=t||{},n=i.height,r=i.width;i.hidden||!1}return i.height&&EPUBJS.core.isNumber(i.height)&&(n=i.height+"px"),i.width&&EPUBJS.core.isNumber(i.width)&&(r=i.width+"px"),e=document.createElement("div"),e.id="epubjs-container:"+EPUBJS.core.uuid(),e.classList.add("epub-container"),e.style.fontSize="0",e.style.wordSpacing="0",e.style.lineHeight="0",e.style.verticalAlign="top","horizontal"===this.settings.axis&&(e.style.whiteSpace="nowrap"),r&&(e.style.width=r),n&&(e.style.height=n),e.style.overflow=this.settings.overflow,e},EPUBJS.Rendition.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},EPUBJS.Rendition.prototype.attachTo=function(t){return this.container=this.initialize({width:this.settings.width,height:this.settings.height}),EPUBJS.core.isElement(t)?this.element=t:"string"==typeof t&&(this.element=document.getElementById(t)),this.element?(this.element.appendChild(this.container),this.attachListeners(),this.stageSize(),this.layoutMethod(),this.trigger("attached"),void this.q.run()):void console.error("Not an Element")},EPUBJS.Rendition.prototype.attachListeners=function(){EPUBJS.core.isNumber(this.settings.width)&&EPUBJS.core.isNumber(this.settings.height)||window.addEventListener("resize",this.onResized.bind(this),!1)},EPUBJS.Rendition.prototype.bounds=function(){return this.container.getBoundingClientRect()},EPUBJS.Rendition.prototype.display=function(t){return this.q.enqueue(function(t){var e,i=new RSVP.defer,n=i.promise,r=this.book.spine.get(t);return this.displaying=!0,r?(e=this.createView(r),this.q.enqueue(this.append,e),i.resolve(this)):i.reject(new Error("No Section Found")),n},t)},EPUBJS.Rendition.prototype.moveTo=function(){},EPUBJS.Rendition.prototype.render=function(t){return t.create(),t.onLayout=this.layout.format.bind(this.layout),this.resizeView(t),t.display(this.book.request).then(function(){return this.hooks.replacements.trigger(t,this)}.bind(this)).then(function(){return this.hooks.layout.trigger(t)}.bind(this)).then(function(){return t.show()}.bind(this)).then(function(t){this.trigger("rendered",t.section)}.bind(this)).catch(function(t){this.trigger("loaderror",t)}.bind(this))},EPUBJS.Rendition.prototype.afterDisplayed=function(t){this.trigger("displayed",t.section)},EPUBJS.Rendition.prototype.append=function(t){return this.clear(),this.views.push(t),this.container.appendChild(t.element),t.onShown=this.afterDisplayed.bind(this),this.render(t)},EPUBJS.Rendition.prototype.clear=function(){this.views.forEach(function(t){this.remove(t)}.bind(this))},EPUBJS.Rendition.prototype.remove=function(t){var e=this.views.indexOf(t);e>-1&&this.views.splice(e,1),this.container.removeChild(t.element),t.shown&&t.destroy(),t=null},EPUBJS.Rendition.prototype.resizeView=function(t){"pre-paginated"===this.globalLayoutProperties.layout?t.lock(this.stage.width,this.stage.height):t.lock(this.stage.width,null)},EPUBJS.Rendition.prototype.stageSize=function(t,e){var i,n=t||this.settings.width,r=e||this.settings.height;return 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EPUBJS.Layout.Scroll},EPUBJS.Rendition.prototype.resize=function(t,e){this.stageSize(t,e),this.layoutMethod(),this.views.forEach(this.resizeView.bind(this)),this.trigger("resized",{width:this.stage.width,height:this.stage.height})},EPUBJS.Rendition.prototype.onResized=function(){this.resize()},EPUBJS.Rendition.prototype.createView=function(t){return new EPUBJS.View(t,this.viewSettings)},EPUBJS.Rendition.prototype.next=function(){return this.q.enqueue(function(){var t,e;return this.views.length?(t=this.views[0].section.next(),t?(e=this.createView(t),this.append(e)):void 0):void 0})},EPUBJS.Rendition.prototype.prev=function(){return this.q.enqueue(function(){var t,e;return this.views.length?(t=this.views[0].section.prev(),t?(e=this.createView(t),this.append(e)):void 0):void 0})},EPUBJS.Rendition.prototype.parseLayoutProperties=function(t){var 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e=t.split("!"),i=e[1]?e[1].split(":"):"";return i[0]},EPUBJS.EpubCFI.prototype.getCharecterOffsetComponent=function(t){var e=t.split(":");return e[1]||""},EPUBJS.EpubCFI.prototype.parse=function(t){var e,i,n,r,o,s,a,h,u,c={},l=function(t){var e,i,n,r;return e="element",i=parseInt(t)/2-1,n=t.match(/\[(.*)\]/),n&&n[1]&&(r=n[1]),{type:e,index:i,id:r||!1}};return"string"!=typeof t?{spinePos:-1}:(c.str=t,0===t.indexOf("epubcfi(")&&")"===t[t.length-1]&&(t=t.slice(8,t.length-1)),i=this.getChapterComponent(t),n=this.getPathComponent(t)||"",r=this.getCharecterOffsetComponent(t),i&&(e=i.split("/")[2]||"")?(c.spinePos=parseInt(e)/2-1||0,s=e.match(/\[(.*)\]/),c.spineId=s?s[1]:!1,-1!=n.indexOf(",")&&console.warn("CFI Ranges are not supported"),a=n.split("/"),h=a.pop(),c.steps=[],a.forEach(function(t){var e;t&&(e=l(t),c.steps.push(e))}),u=parseInt(h),isNaN(u)||c.steps.push(u%2===0?l(h):{type:"text",index:(u-1)/2}),o=r.match(/\[(.*)\]/),o&&o[1]?(c.characterOffset=parseInt(r.split("[")[0]),c.textLocationAssertion=o[1]):c.characterOffset=parseInt(r),c):{spinePos:-1})},EPUBJS.EpubCFI.prototype.addMarker=function(t,e,i){var n,r,o,s,a=e||document,h=i||this.createMarker(a);return"string"==typeof t&&(t=this.parse(t)),r=t.steps[t.steps.length-1],-1===t.spinePos?!1:(n=this.findParent(t,a))?(r&&"text"===r.type?(o=n.childNodes[r.index],t.characterOffset?(s=o.splitText(t.characterOffset),h.classList.add("EPUBJS-CFI-SPLIT"),n.insertBefore(h,s)):n.insertBefore(h,o)):n.insertBefore(h,n.firstChild),h):!1},EPUBJS.EpubCFI.prototype.createMarker=function(t){var e=t||document,i=e.createElement("span");return i.id="EPUBJS-CFI-MARKER:"+EPUBJS.core.uuid(),i.classList.add("EPUBJS-CFI-MARKER"),i},EPUBJS.EpubCFI.prototype.removeMarker=function(t,e){t.classList.contains("EPUBJS-CFI-SPLIT")?(nextSib=t.nextSibling,prevSib=t.previousSibling,nextSib&&prevSib&&3===nextSib.nodeType&&3===prevSib.nodeType&&(prevSib.textContent+=nextSib.textContent,t.parentNode.removeChild(nextSib)),t.parentNode.removeChild(t)):t.classList.contains("EPUBJS-CFI-MARKER")&&t.parentNode.removeChild(t)},EPUBJS.EpubCFI.prototype.findParent=function(t,e){var i,n,r,o=e||document,s=o.getElementsByTagName("html")[0],a=Array.prototype.slice.call(s.children);if("string"==typeof t&&(t=this.parse(t)),n=t.steps.slice(0),!n.length)return o.getElementsByTagName("body")[0];for(;n&&n.length>0;){if(i=n.shift(),"text"===i.type?(r=s.childNodes[i.index],s=r.parentNode||s):s=i.id?o.getElementById(i.id):a[i.index],"undefined"==typeof s)return console.error("No Element For",i,t.str),!1;a=Array.prototype.slice.call(s.children)}return 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r(i.ncxUrl,"xml").then(function(e){i.toc=n.ncx(e),i.loaded(i.toc),t.resolve(i.toc)}),e})},EPUBJS.Navigation.prototype.load=function(t){{var e,i;t||EPUBJS.core.request}return this.nav?e=this.nav.load():this.ncx?e=this.ncx.load():(i=new RSVP.defer,i.resolve([]),e=i.promise),e},EPUBJS.Navigation.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},EPUBJS.Navigation.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},EPUBJS.Section=function(t){this.idref=t.idref,this.linear=t.linear,this.properties=t.properties,this.index=t.index,this.href=t.href,this.url=t.url,this.cfiBase=t.cfiBase,this.next=t.next,this.prev=t.prev,this.hooks={},this.hooks.replacements=new EPUBJS.Hook(this),this.hooks.replacements.register(this.replacements)},EPUBJS.Section.prototype.load=function(t){var e=t||this.request||EPUBJS.core.request,i=new RSVP.defer,n=i.promise;return this.contents?i.resolve(this.contents):e(this.url,"xml").then(function(t){EPUBJS.core.folder(this.url);return this.document=t,this.contents=t.documentElement,this.hooks.replacements.trigger(this.document)}.bind(this)).then(function(){i.resolve(this.contents)}.bind(this)).catch(function(t){i.reject(t)}),n},EPUBJS.Section.prototype.replacements=function(t){var e,i=new RSVP.defer,n=t.createElement("base");return n.setAttribute("href",this.url),t&&(e=t.querySelector("head")),e?(e.insertBefore(n,e.firstChild),i.resolve()):i.reject(new Error("No head to insert into")),i.promise},EPUBJS.Section.prototype.beforeSectionLoad=function(){},EPUBJS.Section.prototype.render=function(t){var e=new RSVP.defer,i=e.promise;return this.load(t).then(function(t){var i=new XMLSerializer,n=i.serializeToString(t);e.resolve(n)}).catch(function(t){e.reject(t)}),i},EPUBJS.Section.prototype.find=function(){},EPUBJS.Section.prototype.reconcileLayoutSettings=function(t){var e={layout:t.layout,spread:t.spread,orientation:t.orientation};return this.properties.forEach(function(t){var i,n,r=t.replace("rendition:",""),o=r.indexOf("-");-1!=o&&(i=r.slice(0,o),n=r.slice(o+1),e[i]=n)}),e},EPUBJS.Spine=function(t){this.request=t,this.spineItems=[],this.spineByHref={},this.spineById={}},EPUBJS.Spine.prototype.load=function(t){this.items=t.spine,this.manifest=t.manifest,this.spineNodeIndex=t.spineNodeIndex,this.baseUrl=t.baseUrl||"",this.length=this.items.length,this.epubcfi=new EPUBJS.EpubCFI,this.items.forEach(function(t,e){var i,n=this.manifest[t.idref];t.cfiBase=this.epubcfi.generateChapterComponent(this.spineNodeIndex,t.index,t.idref),n&&(t.href=n.href,t.url=this.baseUrl+t.href,n.properties.length&&t.properties.push.apply(t.properties,n.properties)),t.prev=function(){return this.get(e-1)}.bind(this),t.next=function(){return this.get(e+1)}.bind(this),i=new EPUBJS.Section(t),this.append(i)}.bind(this))},EPUBJS.Spine.prototype.get=function(t){var e=0;return!t||"number"!=typeof t&&isNaN(t)!==!1?t&&0===t.indexOf("#")?e=this.spineById[t.substring(1)]:t&&(t=t.split("#")[0],e=this.spineByHref[t]):e=t,this.spineItems[e]||null},EPUBJS.Spine.prototype.append=function(t){var e=this.spineItems.length;return t.index=e,this.spineItems.push(t),this.spineByHref[t.href]=e,this.spineById[t.idref]=e,e},EPUBJS.Spine.prototype.prepend=function(t){this.spineItems.unshift(t);return this.spineByHref[t.href]=0,this.spineById[t.idref]=0,this.spineItems.forEach(function(t,e){t.index=e}),0},EPUBJS.Spine.prototype.insert=function(){},EPUBJS.Spine.prototype.remove=function(t){var e=this.spineItems.indexOf(t);return e>-1?(delete this.spineByHref[t.href],delete this.spineById[t.idref],this.spineItems.splice(e,1)):void 0},EPUBJS.replace={},EPUBJS.replace.links=function(t,e){for(var i=new RSVP.defer,n=t.document.querySelectorAll("a[href]"),r=function(t){var i=t.getAttribute("href"),n=new EPUBJS.core.uri(i);n.protocol?t.setAttribute("target","_blank"):0===i.indexOf("#")||(t.onclick=function(){return e.display(i),!1})},o=0;o<n.length;o++)r(n[o]);return i.resolve(),i.promise},EPUBJS.Book=function(t){this.opening=new RSVP.defer,this.opened=this.opening.promise,this.isOpen=!1,this.url=void 0,this.spine=new EPUBJS.Spine(this.request),this.loading={manifest:new RSVP.defer,spine:new RSVP.defer,metadata:new RSVP.defer,cover:new RSVP.defer,navigation:new RSVP.defer,pageList:new RSVP.defer},this.loaded={manifest:this.loading.manifest.promise,spine:this.loading.spine.promise,metadata:this.loading.metadata.promise,cover:this.loading.cover.promise,navigation:this.loading.navigation.promise,pageList:this.loading.pageList.promise},this.ready=RSVP.hash(this.loaded),this.isRendered=!1,this._q=EPUBJS.core.queue(this),this.request=this.requestMethod.bind(this),t&&this.open(t)},EPUBJS.Book.prototype.open=function(t){var e,i,n,r=new EPUBJS.Parser,o=this,s="META-INF/container.xml";return t?(e="object"==typeof t?t:EPUBJS.core.uri(t),"opf"===e.extension?(this.packageUrl=e.href,this.containerUrl="",e.origin?this.url=e.base:window?(n=EPUBJS.core.uri(window.location.href),this.url=EPUBJS.core.resolveUrl(n.base,e.directory)):this.url=e.directory,i=this.request(this.packageUrl)):"epub"===e.extension||"zip"===e.extension?(this.archived=!0,this.url=""):e.extension||(this.containerUrl=t+s,i=this.request(this.containerUrl).then(function(t){return r.container(t)}).then(function(e){var i=EPUBJS.core.uri(e.packagePath);return o.packageUrl=t+e.packagePath,o.encoding=e.encoding,i.origin?o.url=i.base:window?(n=EPUBJS.core.uri(window.location.href),o.url=EPUBJS.core.resolveUrl(n.base,t+i.directory)):o.url=i.directory,o.request(o.packageUrl)}).catch(function(t){console.error("Could not load book at: "+(this.packageUrl||this.containerPath)),o.trigger("book:loadFailed",this.packageUrl||this.containerPath),o.opening.reject(t)})),i.then(function(t){o.unpack(t),o.loading.manifest.resolve(o.package.manifest),o.loading.metadata.resolve(o.package.metadata),o.loading.spine.resolve(o.spine),o.loading.cover.resolve(o.cover),this.isOpen=!0,o.opening.resolve(o)}).catch(function(t){console.error(t.message,t.stack),o.opening.reject(t)}),this.opened):(this.opening.resolve(this),this.opened)},EPUBJS.Book.prototype.unpack=function(t){var e=this,i=new EPUBJS.Parser;e.package=i.packageContents(t),e.package.baseUrl=e.url,this.spine.load(e.package),e.navigation=new EPUBJS.Navigation(e.package,this.request),e.navigation.load().then(function(t){e.toc=t,e.loading.navigation.resolve(e.toc)}),e.cover=e.url+e.package.coverPath},EPUBJS.Book.prototype.section=function(t){return this.spine.get(t)},EPUBJS.Book.prototype.renderTo=function(t,e){var i=e&&e.method?e.method.charAt(0).toUpperCase()+e.method.substr(1):"Rendition";return this.rendition=new EPUBJS[i](this,e),this.rendition.attachTo(t),this.rendition},EPUBJS.Book.prototype.requestMethod=function(t){return this.archived?void 0:EPUBJS.core.request(t,"xml",this.requestCredentials,this.requestHeaders)},EPUBJS.Book.prototype.setRequestCredentials=function(t){this.requestCredentials=t},EPUBJS.Book.prototype.setRequestHeaders=function(t){this.requestHeaders=t},RSVP.EventTarget.mixin(EPUBJS.Book.prototype),RSVP.on("error",function(){}),RSVP.configure("instrument",!0),RSVP.on("rejected",function(t){console.error(t.detail.message,t.detail.stack)}),EPUBJS.View=function(t,e){this.settings=e||{},this.id="epubjs-view:"+EPUBJS.core.uuid(),this.displaying=new RSVP.defer,this.displayed=this.displaying.promise,this.section=t,this.index=t.index,this.element=document.createElement("div"),this.element.classList.add("epub-view"),this.element.style.height="0px",this.element.style.width="0px",this.element.style.overflow="hidden",this.shown=!1,this.rendered=!1,this.element.style.display=this.settings.axis&&"horizontal"==this.settings.axis?"inline-block":"block"},EPUBJS.View.prototype.create=function(){return this.iframe?this.iframe:(this.iframe=document.createElement("iframe"),this.iframe.id=this.id,this.iframe.scrolling="no",this.iframe.seamless="seamless",this.iframe.style.border="none",this.resizing=!0,this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.element.appendChild(this.iframe),this.rendered=!0,this.elementBounds=EPUBJS.core.bounds(this.element),this.supportsSrcdoc="srcdoc"in this.iframe?!0:!1,this.iframe)},EPUBJS.View.prototype.lock=function(t,e){var i,n=EPUBJS.core.borders(this.element);i=this.iframe?EPUBJS.core.borders(this.iframe):{width:0,height:0},EPUBJS.core.isNumber(t)&&(this.lockedWidth=t-n.width-i.width,this.resize(this.lockedWidth,0)),EPUBJS.core.isNumber(e)&&(this.lockedHeight=e-n.height-i.height,this.resize(0,this.lockedHeight)),this.shown&&this.iframe&&!this.resizing&&this.expand()},EPUBJS.View.prototype.resize=function(t,e){this.iframe&&(EPUBJS.core.isNumber(t)&&(this.iframe.style.width=t+"px"),EPUBJS.core.isNumber(e)&&(this.iframe.style.height=e+"px"),this.iframeBounds=EPUBJS.core.bounds(this.iframe),this.reframe(this.iframeBounds.width,this.iframeBounds.height))},EPUBJS.View.prototype.reframe=function(t,e){var i;this.shown&&(EPUBJS.core.isNumber(t)&&(this.element.style.width=t+"px"),EPUBJS.core.isNumber(e)&&(this.element.style.height=e+"px"),i=this.elementBounds,this.elementBounds=EPUBJS.core.bounds(this.element),this.trigger("resized",{width:this.elementBounds.width,height:this.elementBounds.height,widthDelta:this.elementBounds.width-i.width,heightDelta:this.elementBounds.height-i.height}))},EPUBJS.View.prototype.resized=function(){},EPUBJS.View.prototype.display=function(t){return this.section.render(t).then(function(t){return this.load(t)}.bind(this)).then(this.displaying.resolve.call(this))},EPUBJS.View.prototype.load=function(t){var e=new RSVP.defer,i=e.promise;return this.document=this.iframe.contentDocument,this.document?(this.iframe.addEventListener("load",function(){this.window=this.iframe.contentWindow,this.document=this.iframe.contentDocument,e.resolve(this)}.bind(this)),this.supportsSrcdoc?this.iframe.srcdoc=t:(this.document.open(),this.document.write(t),this.document.close()),i):(e.reject(new Error("No Document Available")),i)},EPUBJS.View.prototype.layout=function(t){this.iframe.style.display="inline-block",this.document.body.style.margin="0",t&&t(this),this.onLayout(this)},EPUBJS.View.prototype.onLayout=function(){},EPUBJS.View.prototype.listeners=function(){this.section.properties.indexOf("scripted")>-1&&(this.observer=this.observe(this.document.body)),this.imageLoadListeners(),this.mediaQueryListeners()},EPUBJS.View.prototype.expand=function(){var t=this.lockedWidth,e=this.lockedHeight;t&&!e&&(e=this.document.documentElement.scrollHeight),e&&!t&&(t=this.document.body.scrollWidth),this.resize(t,e)},EPUBJS.View.prototype.mediaQueryListeners=function(){for(var t=this.document.styleSheets,e=function(t){t.matches&&this.expand()}.bind(this),i=0;i<t.length;i+=1)for(var n=t[i].cssRules,r=0;r<n.length;r+=1)if(n[r].media){var o=this.window.matchMedia(n[r].media.mediaText);o.addListener(e)}},EPUBJS.View.prototype.observe=function(t){var e=this,i=new MutationObserver(function(){e.expand()}),n={attributes:!0,childList:!0,characterData:!0,subtree:!0};return i.observe(t,n),i},EPUBJS.View.prototype.imageLoadListeners=function(){for(var t,e=this.document.body.querySelectorAll("img"),i=0;i<e.length;i++)t=e[i],"undefined"!=typeof t.naturalWidth&&0===t.naturalWidth&&(t.onload=this.expand.bind(this))},EPUBJS.View.prototype.show=function(){var t=new RSVP.defer;return this.shown=!0,this.layout(),this.listeners(),this.expand(),this.element.style.visibility="visible",this.iframe.style.visibility="visible",this.trigger("shown",this),this.onShown(this),t.resolve(this),t.promise},EPUBJS.View.prototype.hide=function(){this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.stopExpanding=!0,this.trigger("hidden")},EPUBJS.View.prototype.position=function(){return this.element.getBoundingClientRect()},EPUBJS.View.prototype.onShown=function(){},EPUBJS.View.prototype.bounds=function(){return this.elementBounds||(this.elementBounds=EPUBJS.core.bounds(this.element)),this.elementBounds},EPUBJS.View.prototype.destroy=function(){this.observer&&this.observer.disconnect(),this.iframe&&(this.stopExpanding=!0,this.element.removeChild(this.iframe),this.shown=!1,this.iframe=null)},RSVP.EventTarget.mixin(EPUBJS.View.prototype),EPUBJS.Layout=EPUBJS.Layout||{},EPUBJS.Layout.Reflowable=function(t,e,i,n){var r,o,s=n||1,a=Math.floor(t),h=a%2===0?a:a-1,u=Math.floor(h/8),c=i>=0?i:u%2===0?u:u-1;return r=s>1?Math.floor((h-c)/s):h,o=(r+c)*s,this.columnAxis=EPUBJS.core.prefixed("columnAxis"),this.columnGap=EPUBJS.core.prefixed("columnGap"),this.columnWidth=EPUBJS.core.prefixed("columnWidth"),this.columnFill=EPUBJS.core.prefixed("columnFill"),this.width=h,this.height=e,this.spread=o,this.column=r,this.gap=c,this.divisor=s,this},EPUBJS.Layout.Reflowable.prototype.format=function(t){var e=t.document.documentElement,i=t.document.body;e.style.overflow="hidden",i.style.width=this.width+"px",i.style.height=this.height+"px",i.style[this.columnAxis]="horizontal",i.style[this.columnFill]="auto",i.style[this.columnGap]=this.gap+"px",i.style[this.columnWidth]=this.column+"px",t.iframe.style.marginRight=this.gap+"px"},EPUBJS.Layout.Reflowable.prototype.count=function(t){var e=t.documentElement.scrollWidth,i=Math.ceil(e/this.spreadWidth);return{spreads:i,pages:i*this.divisor}},EPUBJS.Layout.Fixed=function(){},EPUBJS.Layout.Fixed.prototype.format=function(t){var e,i,n=t.document.documentElement,r=documentElement.querySelector("[name=viewport");r&&r.hasAttribute("content")&&(content=r.getAttribute("content"),contents=content.split(","),contents[0]&&(e=contents[0].replace("width=","")),contents[1]&&(i=contents[1].replace("height=",""))),t.resize(e,i),n.style.overflow="auto"},EPUBJS.Layout.Fixed.prototype.count=function(){return{spreads:1,pages:1}},EPUBJS.Layout.Scroll=function(){},EPUBJS.Layout.Scroll.prototype.format=function(t){var e=t.document.documentElement;e.style.width="auto",e.style.height="auto"},EPUBJS.Layout.Scroll.prototype.count=function(){return{spreads:1,pages:1}},EPUBJS.Rendition=function(t,e){this.settings=EPUBJS.core.extend(this.settings||{},{infinite:!0,hidden:!1,width:!1,height:!1,layoutOveride:null}),EPUBJS.core.extend(this.settings,e),this.viewSettings={},this.book=t,this.settings.hidden&&(this.wrapper=this.wrap(this.container)),this.views=[],this.hooks={},this.hooks.layout=new EPUBJS.Hook(this),this.hooks.replacements=new EPUBJS.Hook(this),this.hooks.replacements.register(EPUBJS.replace.links.bind(this)),this.q=new EPUBJS.Queue(this),this.q.enqueue(this.book.opened),this.book.opened.then(function(){this.globalLayoutProperties=this.parseLayoutProperties(this.book.package.metadata)}.bind(this))},EPUBJS.Rendition.prototype.initialize=function(t){{var e,i=t||{},n=i.height,r=i.width;i.hidden||!1}return i.height&&EPUBJS.core.isNumber(i.height)&&(n=i.height+"px"),i.width&&EPUBJS.core.isNumber(i.width)&&(r=i.width+"px"),e=document.createElement("div"),e.id="epubjs-container:"+EPUBJS.core.uuid(),e.classList.add("epub-container"),e.style.fontSize="0",e.style.wordSpacing="0",e.style.lineHeight="0",e.style.verticalAlign="top","horizontal"===this.settings.axis&&(e.style.whiteSpace="nowrap"),r&&(e.style.width=r),n&&(e.style.height=n),e.style.overflow=this.settings.overflow,e},EPUBJS.Rendition.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},EPUBJS.Rendition.prototype.attachTo=function(t){return this.container=this.initialize({width:this.settings.width,height:this.settings.height}),EPUBJS.core.isElement(t)?this.element=t:"string"==typeof t&&(this.element=document.getElementById(t)),this.element?(this.element.appendChild(this.container),this.attachListeners(),this.stageSize(),this.layoutMethod(),this.trigger("attached"),void this.q.run()):void console.error("Not an Element")},EPUBJS.Rendition.prototype.attachListeners=function(){EPUBJS.core.isNumber(this.settings.width)&&EPUBJS.core.isNumber(this.settings.height)||window.addEventListener("resize",this.onResized.bind(this),!1)},EPUBJS.Rendition.prototype.bounds=function(){return this.container.getBoundingClientRect()},EPUBJS.Rendition.prototype.display=function(t){return this.q.enqueue(function(t){var e,i=new RSVP.defer,n=i.promise,r=this.book.spine.get(t);return this.displaying=!0,r?(e=this.createView(r),this.q.enqueue(this.append,e),i.resolve(this)):i.reject(new Error("No Section Found")),n},t)},EPUBJS.Rendition.prototype.moveTo=function(){},EPUBJS.Rendition.prototype.render=function(t){return t.create(),t.onLayout=this.layout.format.bind(this.layout),this.resizeView(t),t.display(this.book.request).then(function(){return this.hooks.replacements.trigger(t,this)}.bind(this)).then(function(){return this.hooks.layout.trigger(t)}.bind(this)).then(function(){return t.show()}.bind(this)).then(function(t){this.trigger("rendered",t.section)}.bind(this)).catch(function(t){this.trigger("loaderror",t)}.bind(this))},EPUBJS.Rendition.prototype.afterDisplayed=function(t){this.trigger("displayed",t.section)},EPUBJS.Rendition.prototype.append=function(t){return this.clear(),this.views.push(t),this.container.appendChild(t.element),t.onShown=this.afterDisplayed.bind(this),this.render(t)},EPUBJS.Rendition.prototype.clear=function(){this.views.forEach(function(t){this.remove(t)}.bind(this))},EPUBJS.Rendition.prototype.remove=function(t){var e=this.views.indexOf(t);e>-1&&this.views.splice(e,1),this.container.removeChild(t.element),t.shown&&t.destroy(),t=null},EPUBJS.Rendition.prototype.resizeView=function(t){"pre-paginated"===this.globalLayoutProperties.layout?t.lock(this.stage.width,this.stage.height):t.lock(this.stage.width,null)},EPUBJS.Rendition.prototype.stageSize=function(t,e){var i,n=t||this.settings.width,r=e||this.settings.height;return n===!1&&(i=this.element.getBoundingClientRect(),i.width&&(n=i.width,this.container.style.width=i.width+"px")),r===!1&&(i=i||this.element.getBoundingClientRect(),i.height&&(r=i.height,this.container.style.height=i.height+"px")),n&&!EPUBJS.core.isNumber(n)&&(i=this.container.getBoundingClientRect(),n=i.width),r&&!EPUBJS.core.isNumber(r)&&(i=i||this.container.getBoundingClientRect(),r=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},this.stage={width:n-this.containerPadding.left-this.containerPadding.right,height:r-this.containerPadding.top-this.containerPadding.bottom},this.stage},EPUBJS.Rendition.prototype.layoutMethod=function(){this.layout=new EPUBJS.Layout.Scroll},EPUBJS.Rendition.prototype.resize=function(t,e){this.stageSize(t,e),this.layoutMethod(),this.views.forEach(this.resizeView.bind(this)),this.trigger("resized",{width:this.stage.width,height:this.stage.height})},EPUBJS.Rendition.prototype.onResized=function(){this.resize()},EPUBJS.Rendition.prototype.createView=function(t){return new EPUBJS.View(t,this.viewSettings)},EPUBJS.Rendition.prototype.next=function(){return this.q.enqueue(function(){var t,e;return this.views.length?(t=this.views[0].section.next(),t?(e=this.createView(t),this.append(e)):void 0):void 0})},EPUBJS.Rendition.prototype.prev=function(){return this.q.enqueue(function(){var t,e;return this.views.length?(t=this.views[0].section.prev(),t?(e=this.createView(t),this.append(e)):void 0):void 0})},EPUBJS.Rendition.prototype.parseLayoutProperties=function(t){var e=this.layoutOveride&&this.layoutOveride.layout||t.layout||"reflowable",i=this.layoutOveride&&this.layoutOveride.spread||t.spread||"auto",n=this.layoutOveride&&this.layoutOveride.orientation||t.orientation||"auto";return{layout:e,spread:i,orientation:n}},RSVP.EventTarget.mixin(EPUBJS.Rendition.prototype),EPUBJS.Continuous=function(t,e){EPUBJS.Rendition.apply(this,arguments),this.settings=EPUBJS.core.extend(this.settings||{},{infinite:!0,hidden:!1,width:!1,height:!1,overflow:"auto",axis:"vertical",offset:500,offsetDelta:100}),EPUBJS.core.extend(this.settings,e),this.settings.hidden&&(this.wrapper=this.wrap(this.container))},EPUBJS.Continuous.prototype=Object.create(EPUBJS.Rendition.prototype),EPUBJS.Continuous.prototype.constructor=EPUBJS.Continuous,EPUBJS.Continuous.prototype.attachListeners=function(){EPUBJS.core.isNumber(this.settings.width)&&EPUBJS.core.isNumber(this.settings.height)||window.addEventListener("resize",this.onResized.bind(this),!1),this.settings.infinite&&this.start()},EPUBJS.Continuous.prototype.display=function(t){return this.q.enqueue(function(t){var e,i=new RSVP.defer,n=i.promise,r=this.book.spine.get(t);return this.displaying=!0,r?(e=new EPUBJS.View(r,this.viewSettings),this.q.enqueue(this.fill,e),this.q.enqueue(this.check),i.resolve(this)):i.reject(new Error("No Section Found")),n},t)},EPUBJS.Continuous.prototype.moveTo=function(){},EPUBJS.Continuous.prototype.afterDisplayed=function(t){var e,i,n=t.section.next(),r=t.section.prev(),o=this.views.indexOf(t);o+1===this.views.length&&n&&(i=new EPUBJS.View(n,this.viewSettings),this.q.enqueue(this.append,i)),0===o&&r&&(e=new EPUBJS.View(r,this.viewSettings),this.q.enqueue(this.prepend,e)),t.onShown=this.afterDisplayed.bind(this),this.trigger("displayed",t.section)},EPUBJS.Continuous.prototype.removeShownListeners=function(t){t.onShown=function(){}},EPUBJS.Continuous.prototype.append=function(t){return this.views.push(t),this.container.appendChild(t.element),t.onShown=this.afterDisplayed.bind(this),this.check()},EPUBJS.Continuous.prototype.prepend=function(t){return this.views.unshift(t),this.container.insertBefore(t.element,this.container.firstChild),t.onShown=this.afterDisplayed.bind(this),t.on("resized",this.counter.bind(this)),this.check()},EPUBJS.Continuous.prototype.counter=function(t){"vertical"===this.settings.axis?this.scrollBy(0,t.heightDelta,!0):this.scrollBy(t.widthDelta,0,!0)},EPUBJS.Continuous.prototype.fill=function(t){return this.views.length&&this.clear(),this.views.push(t),this.container.appendChild(t.element),t.onShown=this.afterDisplayed.bind(this),this.render(t)},EPUBJS.Continuous.prototype.insert=function(t,e){return this.views.splice(e,0,t),e<this.cotainer.children.length?this.container.insertBefore(t.element,this.container.children[e]):this.container.appendChild(t.element),this.check()},EPUBJS.Continuous.prototype.remove=function(t){var e=this.views.indexOf(t);e>-1&&this.views.splice(e,1),this.container.removeChild(t.element),t.off("resized"),t.shown&&t.destroy(),t=null},EPUBJS.Continuous.prototype.clear=function(){this.views.forEach(function(t){t.destroy()}),this.views=[]},EPUBJS.Continuous.prototype.first=function(){return this.views[0]},EPUBJS.Continuous.prototype.last=function(){return this.views[this.views.length-1]},EPUBJS.Continuous.prototype.each=function(t){return this.views.forEach(t)},EPUBJS.Continuous.prototype.isVisible=function(t,e){var i=t.position(),n=e||this.container.getBoundingClientRect();return"horizontal"===this.settings.axis&&i.right>=n.left-this.settings.offset&&!(i.left>=n.right+this.settings.offset)?!0:"vertical"===this.settings.axis&&i.bottom>=n.top-this.settings.offset&&!(i.top>=n.bottom+this.settings.offset)?!0:!1},EPUBJS.Continuous.prototype.check=function(){var t,e=new RSVP.defer;return t=this.settings.height?this.container.getBoundingClientRect():EPUBJS.core.windowBounds(),this.views.forEach(function(e){var i=this.isVisible(e,t);i?e.shown||this.rendering||this.q.enqueue(function(){return this.render(e).then(function(){this.q.enqueue(this.check)}.bind(this))}):e.shown&&e.destroy()}.bind(this)),clearTimeout(this.trimTimeout),this.trimTimeout=setTimeout(function(){this.q.enqueue(this.trim)}.bind(this),250),e.resolve(),e.promise},EPUBJS.Continuous.prototype.trim=function(){var t=new RSVP.defer,e=!0;return this.views.forEach(function(t,i){var n=i>0?this.views[i-1].shown:!1,r=i+1<this.views.length?this.views[i+1].shown:!1;t.shown||n||r||this.erase(t,e),r&&(e=!1)}.bind(this)),t.resolve(),t.promise},EPUBJS.Continuous.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.remove(t),e&&("vertical"===this.settings.axis?this.scrollTo(0,i-r.height,!0):this.scrollTo(n-r.width,0,!0))},EPUBJS.Continuous.prototype.checkCurrent=function(){var t,e,i=this.container.getBoundingClientRect(),n=this.views.length-1;if(!this.rendering)if("horizontal"===this.settings.axis);else for(var r=n;r>=0;r--)if(t=this.views[r],e=t.bounds().top,e<i.bottom){if(this.current==t.section)break;this.current=t.section,this.trigger("current",this.current);break}},EPUBJS.Continuous.prototype.start=function(){var t;this.tick=EPUBJS.core.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,t=this.settings.height?this.container:window,window.addEventListener("scroll",function(){this.ignore?this.ignore=!1:this.scrolled=!0}.bind(this)),window.addEventListener("unload",function(){this.ignore=!0}),this.tick.call(window,this.onScroll.bind(this)),this.scrolled=!1},EPUBJS.Continuous.prototype.onScroll=function(){this.scrolled&&(this.settings.height?(scrollTop=this.container.scrollTop,scrollLeft=this.container.scrollLeft):(scrollTop=window.scrollY,scrollLeft=window.scrollX),this.ignore?this.ignore=!1:(0===this.scrollDeltaVert&&0===this.scrollDeltaHorz||this.scrollDeltaVert>this.settings.offsetDelta||this.scrollDeltaHorz>this.settings.offsetDelta)&&(this.q.enqueue(this.check),this.scrollDeltaVert=0,this.scrollDeltaHorz=0),this.scrollDeltaVert+=Math.abs(scrollTop-this.prevScrollTop),this.scrollDeltaHorz+=Math.abs(scrollLeft-this.prevScrollLeft),this.settings.height?(this.prevScrollTop=this.container.scrollTop,this.prevScrollLeft=this.container.scrollLeft):(this.prevScrollTop=window.scrollY,this.prevScrollLeft=window.scrollX),clearTimeout(this.scrollTimeout),this.scrollTimeout=setTimeout(function(){this.scrollDeltaVert=0,this.scrollDeltaHorz=0}.bind(this),150),this.scrolled=!1),this.tick.call(window,this.onScroll.bind(this))},EPUBJS.Continuous.prototype.scrollBy=function(t,e,i){i&&(this.ignore=!0),this.settings.height?(this.container.scrollLeft+=t,this.container.scrollTop+=e):window.scrollBy(t,e),this.scrolled=!0},EPUBJS.Continuous.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},EPUBJS.Continuous.prototype.resizeView=function(t){"horizontal"===this.settings.axis?t.lock(null,this.stage.height):t.lock(this.stage.width,null)},EPUBJS.Paginate=function(t,e){EPUBJS.Continuous.apply(this,arguments),this.settings=EPUBJS.core.extend(this.settings||{},{width:600,height:400,axis:"horizontal",forceSingle:!1,minSpreadWidth:800,gap:"auto",overflow:"hidden",infinite:!1}),EPUBJS.core.extend(this.settings,e),this.isForcedSingle=!1,this.viewSettings={axis:this.settings.axis},this.start()},EPUBJS.Paginate.prototype=Object.create(EPUBJS.Continuous.prototype),EPUBJS.Paginate.prototype.constructor=EPUBJS.Paginate,EPUBJS.Paginate.prototype.determineSpreads=function(t){return this.isForcedSingle||!t||this.bounds().width<t?1:2},EPUBJS.Paginate.prototype.forceSingle=function(t){this.isForcedSingle=t?!0:!1},EPUBJS.Paginate.prototype.determineLayout=function(t){var e=this.determineSpreads(this.settings.minSpreadWidth);console.log("spreads",e,this.settings.minSpreadWidth);var i=e?"ReflowableSpreads":"Reflowable",n=!1;return"pre-paginated"===t.layout&&(i="Fixed",n=!0,e=!1),"reflowable"===t.layout&&"none"===t.spread&&(i="Reflowable",n=!1,e=!1),"reflowable"===t.layout&&"both"===t.spread&&(i="ReflowableSpreads",n=!1,e=!0),this.spreads=e,i},EPUBJS.Paginate.prototype.start=function(){this.currentPage=0},EPUBJS.Paginate.prototype.layoutMethod=function(){this.spreads=this.determineSpreads(this.settings.minSpreadWidth),this.layout=new EPUBJS.Layout.Reflowable(this.stage.width,this.stage.height,this.settings.gap,this.spreads),this.settings.offset=this.layout.spread},EPUBJS.Paginate.prototype.page=function(){},EPUBJS.Paginate.prototype.next=function(){this.q.enqueue(function(){return this.scrollBy(this.layout.spread,0),this.check()})},EPUBJS.Paginate.prototype.prev=function(){this.q.enqueue(function(){return this.scrollBy(-this.layout.spread,0),this.check()})};
\ No newline at end of file
diff --git a/lib/epubjs/continuous.js b/lib/epubjs/continuous.js
index 3cec108..ccc4b67 100644
--- a/lib/epubjs/continuous.js
+++ b/lib/epubjs/continuous.js
@@ -248,18 +248,8 @@ EPUBJS.Continuous.prototype.check = function(){
 	var checking = new RSVP.defer();
 	var container;//this.container.getBoundingClientRect();
 
-	// Temp
 	if(!this.settings.height) {
-		var width = window.innerWidth;
-		var height = window.innerHeight;
-		container = {
-			top: 0,
-			left: 0,
-			right: width,
-			bottom: height,
-			width: width,
-			height: height
-		}
+		container = EPUBJS.core.windowBounds();
 	} else {
 		container = this.container.getBoundingClientRect();
 	}
@@ -277,7 +267,7 @@ EPUBJS.Continuous.prototype.check = function(){
 							.then(function(){
 							
 								// Check to see if anything new is on screen after rendering
-								return this.check();
+								this.q.enqueue(this.check);
 
 							}.bind(this));
 				});
diff --git a/lib/epubjs/core.js b/lib/epubjs/core.js
index 3c0aec2..e3c0a58 100644
--- a/lib/epubjs/core.js
+++ b/lib/epubjs/core.js
@@ -483,4 +483,20 @@ EPUBJS.core.borders = function(el) {
     width: width
   }
 
+};
+
+EPUBJS.core.windowBounds = function() {
+
+  var width = window.innerWidth;
+  var height = window.innerHeight;
+  
+  return {
+    top: 0,
+    left: 0,
+    right: width,
+    bottom: height,
+    width: width,
+    height: height
+  }
+
 };
\ No newline at end of file