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e&&(this._layoutStyle=e,navigator.epubReadingSystem.layoutStyle=this._layoutStyle),this._layoutStyle||'paginated'}},{key:'epubReadingSystem',value:function(e,t){return navigator.epubReadingSystem={name:e,version:t,layoutStyle:this.layoutStyle(),hasFeature:function(e){return'dom-manipulation'===e||'layout-changes'===e||'touch-events'===e||'mouse-events'===e||'keyboard-events'===e||'spine-scripting'!==e&&!1}},navigator.epubReadingSystem}},{key:'destroy',value:function(){this.observer&&this.observer.disconnect(),this.document.removeEventListener('transitionend',this._resizeCheck),this.removeListeners()}}],[{key:'listenedEvents',get:function(){return m.DOM_EVENTS}}]),e}();(0,l.default)(b.prototype),t.default=b,e.exports=t['default']},function(e,t,n){'use strict';function a(e){return e&&e.__esModule?e:{default:e}}function i(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModule',{value:!0});var r=function(){function 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e;window.addEventListener('unload',function(){this.destroy()}.bind(this)),e=this.settings.fullsize?window:this.container,this._onScroll=this.onScroll.bind(this),e.addEventListener('scroll',this._onScroll)}},{key:'removeEventListeners',value:function(){var e;e=this.settings.fullsize?window:this.container,e.removeEventListener('scroll',this._onScroll),this._onScroll=void 0}},{key:'destroy',value:function(){clearTimeout(this.orientationTimeout),clearTimeout(this.resizeTimeout),clearTimeout(this.afterScrolled),this.clear(),this.removeEventListeners(),this.stage.destroy(),this.rendered=!1}},{key:'onOrientationChange',value:function(){var e=window,t=e.orientation;this.optsSettings.resizeOnOrientationChange&&this.resize(),clearTimeout(this.orientationTimeout),this.orientationTimeout=setTimeout(function(){this.orientationTimeout=void 0,this.optsSettings.resizeOnOrientationChange&&this.resize(),this.emit(b.EVENTS.MANAGERS.ORIENTATION_CHANGE,t)}.bind(this),500)}},{key:'onResized',value:function(){this.resize()}},{key:'resize',value:function(e,t){var n=this.stage.size(e,t);return this.winBounds=(0,u.windowBounds)(),this.orientationTimeout&&this.winBounds.width===this.winBounds.height?void(this._stageSize=void 0):void(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(b.EVENTS.MANAGERS.RESIZED,{width:this._stageSize.width,height:this._stageSize.height})))}},{key:'createView',value:function(e){return new this.View(e,this.viewSettings)}},{key:'display',value:function(e,t){var n=new u.defer,a=n.promise;(t===e.href||(0,u.isNumber)(t))&&(t=void 0);var i=this.views.find(e);if(i&&e){var o=i.offset();if('ltr'===this.settings.direction)this.scrollTo(o.left,o.top,!0);else{var r=i.width();this.scrollTo(o.left+r,o.top,!0)}if(t){var s=i.locationOf(t);this.moveTo(s)}return n.resolve(),a}return this.clear(),this.add(e).then(function(e){if(t){var n=e.locationOf(t);this.moveTo(n)}}.bind(this),function(e){n.reject(e)}).then(function(){var t;if('pre-paginated'===this.layout.name&&1<this.layout.divisor&&0<e.index&&(t=e.next(),t))return this.add(t)}.bind(this)).then(function(){this.views.show(),n.resolve()}.bind(this)),a}},{key:'afterDisplayed',value:function(e){this.emit(b.EVENTS.MANAGERS.ADDED,e)}},{key:'afterResized',value:function(e){this.emit(b.EVENTS.MANAGERS.RESIZE,e.section)}},{key:'moveTo',value:function(e){var t=0,n=0;this.isPaginated?(t=l(e.left/this.layout.delta)*this.layout.delta,t+this.layout.delta>this.container.scrollWidth&&(t=this.container.scrollWidth-this.layout.delta)):n=e.top,this.scrollTo(t,n,!0)}},{key:'add',value:function(e){var t=this,n=this.createView(e);return this.views.append(n),n.onDisplayed=this.afterDisplayed.bind(this),n.onResize=this.afterResized.bind(this),n.on(b.EVENTS.VIEWS.AXIS,function(e){t.updateAxis(e)}),n.display(this.request)}},{key:'append',value:function(e){var t=this,n=this.createView(e);return this.views.append(n),n.onDisplayed=this.afterDisplayed.bind(this),n.onResize=this.afterResized.bind(this),n.on(b.EVENTS.VIEWS.AXIS,function(e){t.updateAxis(e)}),n.display(this.request)}},{key:'prepend',value:function(e){var t=this,n=this.createView(e);return n.on(b.EVENTS.VIEWS.RESIZED,function(e){t.counter(e)}),this.views.prepend(n),n.onDisplayed=this.afterDisplayed.bind(this),n.onResize=this.afterResized.bind(this),n.on(b.EVENTS.VIEWS.AXIS,function(e){t.updateAxis(e)}),n.display(this.request)}},{key:'counter',value:function(e){'vertical'===this.settings.axis?this.scrollBy(0,e.heightDelta,!0):this.scrollBy(e.widthDelta,0,!0)}},{key:'next',value:function(){var e=this.settings.direction,t,n;if(this.views.length){if(this.isPaginated&&'horizontal'===this.settings.axis&&(!e||'ltr'===e))this.scrollLeft=this.container.scrollLeft,n=this.container.scrollLeft+this.container.offsetWidth+this.layout.delta,n<=this.container.scrollWidth?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next();else if(this.isPaginated&&'horizontal'===this.settings.axis&&'rtl'===e)this.scrollLeft=this.container.scrollLeft,n=this.container.scrollLeft,0<n?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;var a=this.container.scrollTop+this.container.offsetHeight;a<this.container.scrollHeight?this.scrollBy(0,this.layout.height,!0):t=this.views.last().section.next()}else t=this.views.last().section.next();return t?(this.clear(),this.append(t).then(function(){var e;if('pre-paginated'===this.layout.name&&1<this.layout.divisor&&(e=t.next(),e))return this.append(e)}.bind(this),function(e){return e}).then(function(){this.views.show()}.bind(this))):void 0}}},{key:'prev',value:function(){var e=this.settings.direction,t,n;if(this.views.length){if(this.isPaginated&&'horizontal'===this.settings.axis&&(!e||'ltr'===e))this.scrollLeft=this.container.scrollLeft,n=this.container.scrollLeft,0<n?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev();else if(this.isPaginated&&'horizontal'===this.settings.axis&&'rtl'===e)this.scrollLeft=this.container.scrollLeft,n=this.container.scrollLeft+this.container.offsetWidth+this.layout.delta,n<=this.container.scrollWidth?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;var a=this.container.scrollTop;0<a?this.scrollBy(0,-this.layout.height,!0):t=this.views.first().section.prev()}else t=this.views.first().section.prev();return t?(this.clear(),this.prepend(t).then(function(){var e;if('pre-paginated'===this.layout.name&&1<this.layout.divisor&&(e=t.prev(),e))return this.prepend(e)}.bind(this),function(e){return e}).then(function(){this.isPaginated&&'horizontal'===this.settings.axis&&('rtl'===this.settings.direction?this.scrollTo(0,0,!0):this.scrollTo(this.container.scrollWidth-this.layout.delta,0,!0)),this.views.show()}.bind(this))):void 0}}},{key:'current',value:function(){var e=this.visible();return e.length?e[e.length-1]:null}},{key:'clear',value:function(){this.views&&(this.views.hide(),this.scrollTo(0,0,!0),this.views.clear())}},{key:'currentLocation',value:function(){return this.location='vertical'===this.settings.axis?this.scrolledLocation():this.paginatedLocation(),this.location}},{key:'scrolledLocation',value:function(){var e=this,t=this.visible(),n=this.container.getBoundingClientRect(),a=n.height<window.innerHeight?n.height:window.innerHeight,r=0,s=0;this.settings.fullsize&&(r=window.scrollY);var i=t.map(function(t){var l=t.section,d=l.index,u=l.href,c=t.position(),p=t.height(),g=r+n.top-c.top+s,h=g+a-s;h>p&&(h=p,s=h-g);var m=e.layout.count(p,a).pages,f=o(g/a),y=[],v=o(h/a);y=[];for(var b=f,i;b<=v;b++)i=b+1,y.push(i);var k=e.mapping.page(t.contents,t.section.cfiBase,g,h);return{index:d,href:u,pages:y,totalPages:m,mapping:k}});return i}},{key:'paginatedLocation',value:function(){var e=this,t=this.visible(),n=this.container.getBoundingClientRect(),a=0,o=0;this.settings.fullsize&&(a=window.scrollX);var i=t.map(function(t){var r=t.section,s=r.index,d=r.href,u=t.offset().left,c=t.position().left,p=t.width(),g=a+n.left-c+o,h=g+e.layout.width-o,m=e.mapping.page(t.contents,t.section.cfiBase,g,h),f=e.layout.count(p).pages,y=l(g/e.layout.pageWidth),v=[],b=l(h/e.layout.pageWidth);if(0>y&&(y=0,++b),'rtl'===e.settings.direction){var k=y;y=f-b,b=f-k}for(var x=y+1,i;x<=b;x++)i=x,v.push(i);return{index:s,href:d,pages:v,totalPages:f,mapping:m}});return i}},{key:'isVisible',value:function(e,t,n,a){var i=e.position(),o=a||this.bounds();return'horizontal'===this.settings.axis&&i.right>o.left-t&&i.left<o.right+n||'vertical'===this.settings.axis&&i.bottom>o.top-t&&i.top<o.bottom+n}},{key:'visible',value:function(){for(var e=this.bounds(),t=this.views.displayed(),n=t.length,a=[],o=0,i,r;o<n;o++)r=t[o],i=this.isVisible(r,0,0,e),!0===i&&a.push(r);return a}},{key:'scrollBy',value:function(e,t,n){var 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e=this.stage.bounds(),e}},{key:'applyLayout',value:function(e){this.layout=e,this.updateLayout()}},{key:'updateLayout',value:function(){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.calculate(this._stageSize.width,this._stageSize.height),this.viewSettings.width=this.layout.width,this.viewSettings.height=this.layout.height,this.setLayout(this.layout))}},{key:'setLayout',value:function(e){this.viewSettings.layout=e,this.mapping=new p.default(e.props,this.settings.direction,this.settings.axis),this.views&&this.views.forEach(function(t){t&&t.setLayout(e)})}},{key:'updateAxis',value:function(e,t){this.isPaginated||(e='vertical'),(t||e!==this.settings.axis)&&(this.settings.axis=e,this.stage&&this.stage.axis(e),this.viewSettings.axis=e,this.mapping&&(this.mapping=new p.default(this.layout.props,this.settings.direction,this.settings.axis)),this.layout&&('vertical'===e?this.layout.spread('none'):this.layout.spread(this.layout.settings.spread)))}},{key:'updateFlow',value:function(e){var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:'auto',n='paginated'===e||'auto'===e;this.isPaginated=n,'scrolled-doc'===e||'scrolled-continuous'===e||'scrolled'===e?this.updateAxis('vertical'):this.updateAxis('horizontal'),this.viewSettings.flow=e,this.overflow=this.settings.overflow?this.settings.overflow:n?'hidden':t,this.stage&&this.stage.overflow(this.overflow),this.updateLayout()}},{key:'getContents',value:function(){var e=[];return this.views?(this.views.forEach(function(t){var n=t&&t.contents;n&&e.push(n)}),e):e}},{key:'direction',value:function(){var e=0<arguments.length&&void 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t=e;('scrolled'===e||'scrolled-doc'===e||'scrolled-continuous'===e)&&(t='scrolled'),('auto'===e||'paginated'===e)&&(t='paginated'),this.settings.flow=e,this._layout&&this._layout.flow(t),this.manager&&this._layout&&this.manager.applyLayout(this._layout),this.manager&&this.manager.updateFlow(t),this.manager&&this.manager.isRendered()&&this.location&&(this.manager.clear(),this.display(this.location.start.cfi))}},{key:'layout',value:function(e){var t=this;return e&&(this._layout=new y.default(e),this._layout.spread(e.spread,this.settings.minSpreadWidth),this._layout.on(N.EVENTS.LAYOUT.UPDATED,function(e,n){t.emit(N.EVENTS.RENDITION.LAYOUT,e,n)})),this.manager&&this._layout&&this.manager.applyLayout(this._layout),this._layout}},{key:'spread',value:function(e,t){this.settings.spread=e,t&&(this.settings.minSpreadWidth=t),this._layout&&this._layout.spread(e,t),this.manager&&this.manager.isRendered()&&this.manager.updateLayout()}},{key:'direction',value:function(e){this.settings.direction=e||'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))}},{key:'reportLocation',value:function(){return this.q.enqueue(function(){requestAnimationFrame(function(){var e=this.manager.currentLocation();if(e&&e.then&&'function'==typeof e.then)e.then(function(e){var t=this.located(e);t&&t.start&&t.end&&(this.location=t,this.emit(N.EVENTS.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(N.EVENTS.RENDITION.RELOCATED,this.location))}.bind(this));else if(e){var t=this.located(e);if(!t||!t.start||!t.end)return;this.location=t,this.emit(N.EVENTS.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(N.EVENTS.RENDITION.RELOCATED,this.location)}}.bind(this))}.bind(this))}},{key:'currentLocation',value:function(){var e=this.manager.currentLocation();if(e&&e.then&&'function'==typeof e.then)e.then(function(e){var t=this.located(e);return t}.bind(this));else if(e){var t=this.located(e);return t}}},{key:'located',value:function(e){if(!e.length)return{};var t=e[0],n=e[e.length-1],a={start:{index:t.index,href:t.href,cfi:t.mapping.start,displayed:{page:t.pages[0]||1,total:t.totalPages}},end:{index:n.index,href:n.href,cfi:n.mapping.end,displayed:{page:n.pages[n.pages.length-1]||1,total:n.totalPages}}},i=this.book.locations.locationFromCfi(t.mapping.start),o=this.book.locations.locationFromCfi(n.mapping.end);null!=i&&(a.start.location=i,a.start.percentage=this.book.locations.percentageFromLocation(i)),null!=o&&(a.end.location=o,a.end.percentage=this.book.locations.percentageFromLocation(o));var r=this.book.pageList.pageFromCfi(t.mapping.start),s=this.book.pageList.pageFromCfi(n.mapping.end);return-1!=r&&(a.start.page=r),-1!=s&&(a.end.page=s),n.index===this.book.spine.last().index&&a.end.displayed.page>=a.end.displayed.total&&(a.atEnd=!0),t.index===this.book.spine.first().index&&1===a.start.displayed.page&&(a.atStart=!0),a}},{key:'destroy',value:function(){this.manager&&this.manager.destroy(),this.book=void 0}},{key:'passEvents',value:function(t){var n=this;N.DOM_EVENTS.forEach(function(a){t.on(a,function(e){return n.triggerViewEvent(e,t)})}),t.on(N.EVENTS.CONTENTS.SELECTED,function(a){return n.triggerSelectedEvent(a,t)})}},{key:'triggerViewEvent',value:function(t,e){this.emit(t.type,t,e)}},{key:'triggerSelectedEvent',value:function(e,t){this.emit(N.EVENTS.RENDITION.SELECTED,e,t)}},{key:'triggerMarkEvent',value:function(e,t,n){this.emit(N.EVENTS.RENDITION.MARK_CLICKED,e,t,n)}},{key:'getRange',value:function(e,t){var n=new g.default(e),a=this.manager.visible().filter(function(e){if(n.spinePos===e.index)return!0});if(a.length)return a[0].contents.range(n,t)}},{key:'adjustImages',value:function(e){if('pre-paginated'===this._layout.name)return new Promise(function(e){e()});var t=e.window.getComputedStyle(e.content,null),n=.95*(e.content.offsetHeight-(parseFloat(t.paddingTop)+parseFloat(t.paddingBottom))),a=parseFloat(t.verticalPadding);return e.addStylesheetRules({img:{"max-width":(this._layout.columnWidth?this._layout.columnWidth-a+'px':'100%')+'!important',"max-height":n+'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-a+'px':'100%')+'!important',"max-height":n+'px!important',"page-break-inside":'avoid',"break-inside":'avoid'}}),new Promise(function(e){setTimeout(function(){e()},1)})}},{key:'getContents',value:function(){return this.manager?this.manager.getContents():[]}},{key:'views',value:function(){var e=this.manager?this.manager.views:void 0;return e||[]}},{key:'handleLinks',value:function(e){var t=this;e&&e.on(N.EVENTS.CONTENTS.LINK_CLICKED,function(e){var n=t.book.path.relative(e);t.display(n)})}},{key:'injectStylesheet',value:function(e){var t=e.createElement('link');t.setAttribute('type','text/css'),t.setAttribute('rel','stylesheet'),t.setAttribute('href',this.settings.stylesheet),e.getElementsByTagName('head')[0].appendChild(t)}},{key:'injectScript',value:function(e){var t=e.createElement('script');t.setAttribute('type','text/javascript'),t.setAttribute('src',this.settings.script),t.textContent=' ',e.getElementsByTagName('head')[0].appendChild(t)}},{key:'injectIdentifier',value:function(e){var t=this.book.packaging.metadata.identifier,n=e.createElement('meta');n.setAttribute('name','dc.relation.ispartof'),t&&n.setAttribute('content',t),e.getElementsByTagName('head')[0].appendChild(n)}}]),e}();(0,l.default)(A.prototype),t.default=A,e.exports=t['default']},function(e,t,n){'use strict';function a(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModule',{value:!0});var i=function(){function e(e,t){for(var n=0,a;n<t.length;n++)a=t[n],a.enumerable=a.enumerable||!1,a.configurable=!0,'value'in a&&(a.writable=!0),Object.defineProperty(e,a.key,a)}return function(t,n,a){return n&&e(t.prototype,n),a&&e(t,a),t}}(),s=n(1),l=function(e){return e&&e.__esModule?e:{default:e}}(s),d=n(0),u=function(){function e(t,n,i,o){a(this,e),this.layout=t,this.horizontal='horizontal'===i,this.direction=n||'ltr',this._dev=o}return i(e,[{key:'section',value:function(e){var t=this.findRanges(e),n=this.rangeListToCfiList(e.section.cfiBase,t);return n}},{key:'page',value:function(e,t,n,a){var i=e&&e.document&&e.document.body,o;if(i){if(o=this.rangePairToCfiPair(t,{start:this.findStart(i,n,a),end:this.findEnd(i,n,a)}),!0===this._dev){var s=e.document,d=new l.default(o.start).toRange(s),u=new l.default(o.end).toRange(s),c=s.defaultView.getSelection(),p=s.createRange();c.removeAllRanges(),p.setStart(d.startContainer,d.startOffset),p.setEnd(u.endContainer,u.endOffset),c.addRange(p)}return o}}},{key:'walk',value:function(e,t){if(!(e&&e.nodeType===Node.TEXT_NODE)){var n={acceptNode:function(e){return 0<e.data.trim().length?NodeFilter.FILTER_ACCEPT:NodeFilter.FILTER_REJECT}},a=n.acceptNode;a.acceptNode=n.acceptNode;for(var i=document.createTreeWalker(e,NodeFilter.SHOW_TEXT,a,!1),o,r;(o=i.nextNode())&&(r=t(o),!r););return r}}},{key:'findRanges',value:function(e){for(var t=[],n=e.contents.scrollWidth(),a=o(n/this.layout.spreadWidth),r=a*this.layout.divisor,s=this.layout.columnWidth,l=this.layout.gap,d=0,i,u;d<r.pages;d++)i=(s+l)*d,u=s*(d+1)+l*d,t.push({start:this.findStart(e.document.body,i,u),end:this.findEnd(e.document.body,i,u)});return t}},{key:'findStart',value:function(e,t,n){for(var a=this,i=[e],o=e,r,s;i.length;)if(r=i.shift(),s=this.walk(r,function(e){var r,s,l,u,c;if(c=(0,d.nodeBounds)(e),a.horizontal&&'ltr'===a.direction){if(r=a.horizontal?c.left:c.top,s=a.horizontal?c.right:c.bottom,r>=t&&r<=n)return e;if(s>t)return e;o=e,i.push(e)}else if(a.horizontal&&'rtl'===a.direction){if(r=c.left,s=c.right,s<=n&&s>=t)return e;if(r<n)return e;o=e,i.push(e)}else{if(l=c.top,u=c.bottom,l>=t&&l<=n)return e;if(u>t)return e;o=e,i.push(e)}}),s)return this.findTextStartRange(s,t,n);return this.findTextStartRange(o,t,n)}},{key:'findEnd',value:function(e,t,n){for(var a=this,i=[e],o=e,s,l;i.length;)if(s=i.shift(),l=this.walk(s,function(e){var s,l,u,c,p;if(p=(0,d.nodeBounds)(e),a.horizontal&&'ltr'===a.direction){if(s=r(p.left),l=r(p.right),s>n&&o)return o;if(l>n)return e;o=e,i.push(e)}else if(a.horizontal&&'rtl'===a.direction){if(s=r(a.horizontal?p.left:p.top),l=r(a.horizontal?p.right:p.bottom),l<t&&o)return o;if(s<t)return e;o=e,i.push(e)}else{if(u=r(p.top),c=r(p.bottom),u>n&&o)return o;if(c>n)return e;o=e,i.push(e)}}),l)return this.findTextEndRange(l,t,n);return this.findTextEndRange(o,t,n)}},{key:'findTextStartRange',value:function(e,t,n){for(var a=this.splitTextNodeIntoRanges(e),o=0,i,r,s,l,d;o<a.length;o++)if(i=a[o],r=i.getBoundingClientRect(),this.horizontal&&'ltr'===this.direction){if(s=r.left,s>=t)return i;}else if(this.horizontal&&'rtl'===this.direction){if(d=r.right,d<=n)return i;}else if(l=r.top,l>=t)return i;return a[0]}},{key:'findTextEndRange',value:function(e,t,n){for(var a=this.splitTextNodeIntoRanges(e),o=0,i,r,s,l,d,u,c;o<a.length;o++){if(r=a[o],s=r.getBoundingClientRect(),this.horizontal&&'ltr'===this.direction){if(l=s.left,d=s.right,l>n&&i)return i;if(d>n)return r}else if(this.horizontal&&'rtl'===this.direction){if(l=s.left,d=s.right,d<t&&i)return i;if(l<t)return r}else{if(u=s.top,c=s.bottom,u>n&&i)return i;if(c>n)return r}i=r}return a[a.length-1]}},{key:'splitTextNodeIntoRanges',value:function(e,t){var n=[],a=e.textContent||'',i=a.trim(),o=e.ownerDocument,r=t||' ',s=i.indexOf(r),l;if(-1===s||e.nodeType!=Node.TEXT_NODE)return l=o.createRange(),l.selectNodeContents(e),[l];for(l=o.createRange(),l.setStart(e,0),l.setEnd(e,s),n.push(l),l=!1;-1!=s;)s=i.indexOf(r,s+1),0<s&&(l&&(l.setEnd(e,s),n.push(l)),l=o.createRange(),l.setStart(e,s+1));return l&&(l.setEnd(e,i.length),n.push(l)),n}},{key:'rangePairToCfiPair',value:function(e,t){var n=t.start,a=t.end;n.collapse(!0),a.collapse(!1);var i=new l.default(n,e).toString(),o=new l.default(a,e).toString();return{start:i,end:o}}},{key:'rangeListToCfiList',value:function(e,t){for(var n=[],a=0,i;a<t.length;a++)i=this.rangePairToCfiPair(e,t[a]),n.push(i);return n}},{key:'axis',value:function(e){return e&&(this.horizontal='horizontal'===e),this.horizontal}}]),e}();t.default=u,e.exports=t['default']},function(e,t,n){'use strict';function a(e){return e&&e.__esModule?e:{default:e}}function i(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModule',{value:!0});var r=function(){function e(e,t){for(var n=0,a;n<t.length;n++)a=t[n],a.enumerable=a.enumerable||!1,a.configurable=!0,'value'in a&&(a.writable=!0),Object.defineProperty(e,a.key,a)}return function(t,n,a){return n&&e(t.prototype,n),a&&e(t,a),t}}(),s=n(3),l=a(s),d=n(0),u=n(1),c=a(u),p=n(14),g=a(p),h=n(2),f=n(56),m=function(){function e(t,n){i(this,e),this.settings=(0,d.extend)({ignoreClass:'',axis:n.layout&&'scrolled'===n.layout.props.flow?'vertical':'horizontal',direction:void 0,width:0,height:0,layout:void 0,globalLayoutProperties:{},method:void 0},n||{}),this.id='epubjs-view-'+(0,d.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 c.default,this.layout=this.settings.layout,this.pane=void 0,this.highlights={},this.underlines={},this.marks={}}return r(e,[{key:'container',value:function(e){var t=document.createElement('div');return t.classList.add('epub-view'),t.style.height='0px',t.style.width='0px',t.style.overflow='hidden',t.style.position='relative',t.style.display='block',t.style.flex=e&&'horizontal'==e?'none':'initial',t}},{key:'create',value:function(){return this.iframe?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.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=(0,d.bounds)(this.element),this.supportsSrcdoc=!!('srcdoc'in this.iframe),this.settings.method||(this.settings.method=this.supportsSrcdoc?'srcdoc':'write'),this.iframe)}},{key:'render',value:function(e){return this.create(),this.size(),this.sectionRender||(this.sectionRender=this.section.render(e)),this.sectionRender.then(function(e){return this.load(e)}.bind(this)).then(function(){var e=this;this.layout.format(this.contents);var t=this.contents.writingMode(),n=0===t.indexOf('vertical')?'vertical':'horizontal';return this.setAxis(n),this.emit(h.EVENTS.VIEWS.AXIS,n),this.addListeners(),new Promise(function(t){e.expand(),t()})}.bind(this),function(t){return this.emit(h.EVENTS.VIEWS.LOAD_ERROR,t),new Promise(function(e,n){n(t)})}.bind(this)).then(function(){this.emit(h.EVENTS.VIEWS.RENDERED,this.section)}.bind(this))}},{key:'reset',value:function(){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}},{key:'size',value:function(e,t){var n=e||this.settings.width,a=t||this.settings.height;'pre-paginated'===this.layout.name?this.lock('both',n,a):'horizontal'===this.settings.axis?this.lock('height',n,a):this.lock('width',n,a),this.settings.width=n,this.settings.height=a}},{key:'lock',value:function(e,t,n){var a=(0,d.borders)(this.element),i;i=this.iframe?(0,d.borders)(this.iframe):{width:0,height:0},'width'==e&&(0,d.isNumber)(t)&&(this.lockedWidth=t-a.width-i.width),'height'==e&&(0,d.isNumber)(n)&&(this.lockedHeight=n-a.height-i.height),'both'===e&&(0,d.isNumber)(t)&&(0,d.isNumber)(n)&&(this.lockedWidth=t-a.width-i.width,this.lockedHeight=n-a.height-i.height),this.displayed&&this.iframe&&this.expand()}},{key:'expand',value:function(){var e=this.lockedWidth,t=this.lockedHeight,n;!this.iframe||this._expanding||(this._expanding=!0,'pre-paginated'===this.layout.name?(e=this.layout.columnWidth,t=this.layout.height):'horizontal'===this.settings.axis?(e=this.contents.textWidth(),0<e%this.layout.pageWidth&&(e=o(e/this.layout.pageWidth)*this.layout.pageWidth),this.settings.forceEvenPages&&(n=e/this.layout.pageWidth,1<this.layout.divisor&&'reflowable'===this.layout.name&&0<n%2&&(e+=this.layout.pageWidth))):'vertical'===this.settings.axis&&(t=this.contents.textHeight()),(this._needsReframe||e!=this._width||t!=this._height)&&this.reframe(e,t),this._expanding=!1)}},{key:'reframe',value:function(e,t){var n=this,a;(0,d.isNumber)(e)&&(this.element.style.width=e+'px',this.iframe.style.width=e+'px',this._width=e),(0,d.isNumber)(t)&&(this.element.style.height=t+'px',this.iframe.style.height=t+'px',this._height=t);var i=this.prevBounds?e-this.prevBounds.width:e,o=this.prevBounds?t-this.prevBounds.height:t;a={width:e,height:t,widthDelta:i,heightDelta:o},this.pane&&this.pane.render(),requestAnimationFrame(function(){var e;for(var t in n.marks)n.marks.hasOwnProperty(t)&&(e=n.marks[t],n.placeMark(e.element,e.range))}),this.onResize(this,a),this.emit(h.EVENTS.VIEWS.RESIZED,a),this.prevBounds=a,this.elementBounds=(0,d.bounds)(this.element)}},{key:'load',value:function(e){var t=new d.defer,n=t.promise;if(!this.iframe)return t.reject(new Error('No Iframe Available')),n;if(this.iframe.onload=function(e){this.onLoad(e,t)}.bind(this),'blobUrl'===this.settings.method)this.blobUrl=(0,d.createBlobUrl)(e,'application/xhtml+xml'),this.iframe.src=this.blobUrl,this.element.appendChild(this.iframe);else if('srcdoc'===this.settings.method)this.iframe.srcdoc=e,this.element.appendChild(this.iframe);else{if(this.element.appendChild(this.iframe),this.document=this.iframe.contentDocument,!this.document)return t.reject(new Error('No Document Available')),n;this.iframe.contentDocument.open(),this.iframe.contentDocument.write(e),this.iframe.contentDocument.close()}return n}},{key:'onLoad',value:function(e,t){var n=this;this.window=this.iframe.contentWindow,this.document=this.iframe.contentDocument,this.contents=new g.default(this.document,this.document.body,this.section.cfiBase,this.section.index),this.rendering=!1;var a=this.document.querySelector('link[rel=\'canonical\']');a?a.setAttribute('href',this.section.canonical):(a=this.document.createElement('link'),a.setAttribute('rel','canonical'),a.setAttribute('href',this.section.canonical),this.document.querySelector('head').appendChild(a)),this.contents.on(h.EVENTS.CONTENTS.EXPAND,function(){n.displayed&&n.iframe&&(n.expand(),n.contents&&n.layout.format(n.contents))}),this.contents.on(h.EVENTS.CONTENTS.RESIZE,function(){n.displayed&&n.iframe&&(n.expand(),n.contents&&n.layout.format(n.contents))}),t.resolve(this.contents)}},{key:'setLayout',value:function(e){this.layout=e,this.contents&&(this.layout.format(this.contents),this.expand())}},{key:'setAxis',value:function(e){'scrolled'===this.layout.props.flow&&(e='vertical'),this.settings.axis=e,this.element.style.flex='horizontal'==e?'none':'initial',this.size()}},{key:'addListeners',value:function(){}},{key:'removeListeners',value:function(){}},{key:'display',value:function(e){var t=new d.defer;return this.displayed?t.resolve(this):this.render(e).then(function(){this.emit(h.EVENTS.VIEWS.DISPLAYED,this),this.onDisplayed(this),this.displayed=!0,t.resolve(this)}.bind(this),function(e){t.reject(e,this)}),t.promise}},{key:'show',value:function(){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.EVENTS.VIEWS.SHOWN,this)}},{key:'hide',value:function(){this.element.style.visibility='hidden',this.iframe.style.visibility='hidden',this.stopExpanding=!0,this.emit(h.EVENTS.VIEWS.HIDDEN,this)}},{key:'offset',value:function(){return{top:this.element.offsetTop,left:this.element.offsetLeft}}},{key:'width',value:function(){return this._width}},{key:'height',value:function(){return this._height}},{key:'position',value:function(){return this.element.getBoundingClientRect()}},{key:'locationOf',value:function(e){var t=this.iframe.getBoundingClientRect(),n=this.contents.locationOf(e,this.settings.ignoreClass);return{left:n.left,top:n.top}}},{key:'onDisplayed',value:function(){}},{key:'onResize',value:function(){}},{key:'bounds',value:function(e){return(e||!this.elementBounds)&&(this.elementBounds=(0,d.bounds)(this.element)),this.elementBounds}},{key:'highlight',value:function(e){var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=arguments[2],a=this,i=3<arguments.length&&void 0!==arguments[3]?arguments[3]:'epubjs-hl',o=4<arguments.length&&void 0!==arguments[4]?arguments[4]:{};if(this.contents){var r=Object.assign({fill:'yellow',"fill-opacity":'0.3',"mix-blend-mode":'multiply'},o),s=this.contents.range(e),l=function(){a.emit(h.EVENTS.VIEWS.MARK_CLICKED,e,t)};t.epubcfi=e,this.pane||(this.pane=new f.Pane(this.iframe,this.element));var d=new f.Highlight(s,i,t,r),u=this.pane.addMark(d);return this.highlights[e]={mark:u,element:u.element,listeners:[l,n]},u.element.setAttribute('ref',i),u.element.addEventListener('click',l),u.element.addEventListener('touchstart',l),n&&(u.element.addEventListener('click',n),u.element.addEventListener('touchstart',n)),u}}},{key:'underline',value:function(e){var t=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},n=arguments[2],a=this,i=3<arguments.length&&void 0!==arguments[3]?arguments[3]:'epubjs-ul',o=4<arguments.length&&void 0!==arguments[4]?arguments[4]:{};if(this.contents){var r=Object.assign({stroke:'black',"stroke-opacity":'0.3',"mix-blend-mode":'multiply'},o),s=this.contents.range(e),l=function(){a.emit(h.EVENTS.VIEWS.MARK_CLICKED,e,t)};t.epubcfi=e,this.pane||(this.pane=new f.Pane(this.iframe,this.element));var d=new f.Underline(s,i,t,r),u=this.pane.addMark(d);return 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t=this,n=e.navPath||e.ncxPath,a=e.toc;return a?new Promise(function(n){t.navigation=new E.default(a),e.pageList&&(t.pageList=new w.default(e.pageList)),n(t.navigation)}):n?this.load(n,'xml').then(function(e){return t.navigation=new E.default(e),t.pageList=new w.default(e),t.navigation}):new Promise(function(e){t.navigation=new E.default,t.pageList=new w.default,e(t.navigation)})}},{key:'section',value:function(e){return this.spine.get(e)}},{key:'renderTo',value:function(e,t){return this.rendition=new C.default(this,t),this.rendition.attachTo(e),this.rendition}},{key:'setRequestCredentials',value:function(e){this.settings.requestCredentials=e}},{key:'setRequestHeaders',value:function(e){this.settings.requestHeaders=e}},{key:'unarchive',value:function(e,t){return this.archive=new I.default,this.archive.open(e,t)}},{key:'store',value:function(e){var 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this.spine.hooks.serialize.register(function(t,n){n.output=e.resources.substitute(t,n.url)}),this.resources.replacements().then(function(){return e.resources.replaceCss()})}},{key:'getRange',value:function(e){var t=new D.default(e),n=this.spine.get(t.spinePos),a=this.load.bind(this);return n?n.load(a).then(function(){var e=t.toRange(n.document);return e}):new Promise(function(e,t){t('CFI could not be found')})}},{key:'key',value:function(e){var t=e||this.packaging.metadata.identifier||this.url.filename;return'epubjs:'+j.EPUBJS_VERSION+':'+t}},{key:'destroy',value:function(){this.opened=void 0,this.loading=void 0,this.loaded=void 0,this.ready=void 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t=this;if(Object.keys(e).forEach(function(n){t.props[n]===e[n]&&delete e[n]}),0<Object.keys(e).length){var n=(0,r.extend)(this.props,e);this.emit(s.EVENTS.LAYOUT.UPDATED,n,e)}}}]),e}();(0,u.default)(c.prototype),t.default=c,e.exports=t['default']},function(e,t,n){'use strict';function a(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModule',{value:!0});var i='function'==typeof Symbol&&'symbol'==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&'function'==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?'symbol':typeof e},o=function(){function e(e,t){for(var n=0,a;n<t.length;n++)a=t[n],a.enumerable=a.enumerable||!1,a.configurable=!0,'value'in a&&(a.writable=!0),Object.defineProperty(e,a.key,a)}return function(t,n,a){return n&&e(t.prototype,n),a&&e(t,a),t}}(),r=n(6),s=function(e){return e&&e.__esModule?e:{default:e}}(r),l=function(){function 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