epubjs/dist/epub.min.js

Parse and Render Epubs

(function(e,t){'object'==typeof exports&&'object'==typeof module?module.exports=t(require('xmldom'),function(){try{return require('jszip')}catch(t){}}()):'function'==typeof define&&define.amd?define(['xmldom','jszip'],t):'object'==typeof exports?exports.ePub=t(require('xmldom'),function(){try{return require('jszip')}catch(t){}}()):e.ePub=t(e.xmldom,e.jszip)})('undefined'==typeof self?this:self,function(e,t){var n=String.prototype,a=Math.ceil,i=Math.round,o=Math.max,s=Math.floor;return function(e){function t(a){if(n[a])return n[a].exports;var i=n[a]={i:a,l:!1,exports:{}};return e[a].call(i.exports,i,i.exports,t),i.l=!0,i.exports}var n={};return t.m=e,t.c=n,t.d=function(e,n,a){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:a})},t.n=function(e){var n=e&&e.__esModule?function(){return e['default']}:function(){return e};return t.d(n,'a',n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p='/dist/',t(t.s=25)}([function(e,t,n){'use strict';function a(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}function i(){var e=new Date().getTime(),t='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g,function(t){var n=0|(e+16*Math.random())%16;return e=s(e/16),('x'==t?n:8|7&n).toString(16)});return t}function r(e){return!isNaN(parseFloat(e))&&isFinite(e)}function l(e,t,n,a,i){var o=a||0,s=i||t.length,r=parseInt(o+(s-o)/2),d;return(n||(n=function(e,t){return e>t?1:e<t?-1:e==t?0:void 0}),0>=s-o)?r:(d=n(t[r],e),1==s-o?0<=d?r:r+1:0===d?r:-1===d?l(e,t,n,r,s):l(e,t,n,o,r))}function d(e,t,n,a,i){var o=a||0,s=i||t.length,r=parseInt(o+(s-o)/2),l;return(n||(n=function(e,t){return e>t?1:e<t?-1:e==t?0:void 0}),0>=s-o)?-1:(l=n(t[r],e),1==s-o?0===l?r:-1:0===l?r:-1===l?d(e,t,n,r,s):d(e,t,n,o,r))}function u(e,t){for(var n=e.parentNode,a=n.childNodes,o=-1,s=0,i;s<a.length&&(i=a[s],i.nodeType===t&&o++,i!=e);s++);return o}function c(e,t){return new Blob([e],{type:t})}function p(e,t){return'undefined'==typeof e.querySelector?e.getElementsByTagName(t):e.querySelectorAll(t)}function h(e,t,n){for(var a=document.createTreeWalker(e,n,null,!1),i;i=a.nextNode();)t(i)}function g(e,t){if(t(e))return!0;if(e=e.firstChild,e)do{var n=g(e,t);if(n)return!0;e=e.nextSibling}while(e)}function f(e){for(var t=[e];e;e=e.parentNode)t.unshift(e);return t}Object.defineProperty(t,'__esModule',{value:!0});var m=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}}();t.uuid=i,t.documentHeight=function(){return o(document.documentElement.clientHeight,document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight)},t.isElement=function(e){return!!(e&&1==e.nodeType)},t.isNumber=r,t.isFloat=function(e){var t=parseFloat(e);return!1!==r(e)&&('string'==typeof e&&-1<e.indexOf('.')||s(t)!==t)},t.prefixed=function(e){var t=['Webkit','webkit','Moz','O','ms'],n=['-webkit-','-webkit-','-moz-','-o-','-ms-'],a=e[0].toUpperCase()+e.slice(1),o=t.length;if('undefined'==typeof document||'undefined'!=typeof document.body.style[e])return e;for(var s=0;s<o;s++)if('undefined'!=typeof document.body.style[t[s]+a])return n[s]+e;return e},t.defaults=function(e){for(var t=1,n=arguments.length,a;t<n;t++)for(var i in a=arguments[t],a)void 0===e[i]&&(e[i]=a[i]);return e},t.extend=function(e){var t=[].slice.call(arguments,1);return t.forEach(function(t){t&&Object.getOwnPropertyNames(t).forEach(function(n){Object.defineProperty(e,n,Object.getOwnPropertyDescriptor(t,n))})}),e},t.insert=function(e,t,n){var a=l(e,t,n);return t.splice(a,0,e),a},t.locationOf=l,t.indexOfSorted=d,t.bounds=function(e){var t=window.getComputedStyle(e),n=0,a=0;return['width','paddingRight','paddingLeft','marginRight','marginLeft','borderRightWidth','borderLeftWidth'].forEach(function(e){n+=parseFloat(t[e])||0}),['height','paddingTop','paddingBottom','marginTop','marginBottom','borderTopWidth','borderBottomWidth'].forEach(function(e){a+=parseFloat(t[e])||0}),{height:a,width:n}},t.borders=function(e){var t=window.getComputedStyle(e),n=0,a=0;return['paddingRight','paddingLeft','marginRight','marginLeft','borderRightWidth','borderLeftWidth'].forEach(function(e){n+=parseFloat(t[e])||0}),['paddingTop','paddingBottom','marginTop','marginBottom','borderTopWidth','borderBottomWidth'].forEach(function(e){a+=parseFloat(t[e])||0}),{height:a,width:n}},t.windowBounds=function(){var e=window.innerWidth,t=window.innerHeight;return{top:0,left:0,right:e,bottom:t,width:e,height:t}},t.indexOfNode=u,t.indexOfTextNode=function(e){return u(e,b)},t.indexOfElementNode=function(e){return u(e,v)},t.isXml=function(e){return-1<['xml','opf','ncx'].indexOf(e)},t.createBlob=c,t.createBlobUrl=function(e,t){var n=c(e,t),a;return a=k.createObjectURL(n),a},t.revokeBlobUrl=function(e){return k.revokeObjectURL(e)},t.createBase64Url=function(e,t){var n,a;if('string'==typeof e)return n=btoa(encodeURIComponent(e)),a='data:'+t+';base64,'+n,a},t.type=function(e){return Object.prototype.toString.call(e).slice(8,-1)},t.parse=function(e,t,a){var i,o;return o='undefined'==typeof DOMParser||a?n(16).DOMParser:DOMParser,65279===e.charCodeAt(0)&&(e=e.slice(1)),i=new o().parseFromString(e,t),i},t.qs=function(e,t){var n;if(!e)throw new Error('No Element Provided');return'undefined'==typeof e.querySelector?(n=e.getElementsByTagName(t),n.length)?n[0]:void 0:e.querySelector(t)},t.qsa=p,t.qsp=function(e,t,n){var a,i;if('undefined'!=typeof e.querySelector){for(var o in t+='[',n)t+=o+'~=\''+n[o]+'\'';return t+=']',e.querySelector(t)}return(a=e.getElementsByTagName(t),i=Array.prototype.slice.call(a,0).filter(function(e){for(var t in n)if(e.getAttribute(t)===n[t])return!0;return!1}),i)?i[0]:void 0},t.sprint=function(e,t){var n=e.ownerDocument||e;'undefined'==typeof n.createTreeWalker?g(e,function(e){e&&3===e.nodeType&&t(e)},!0):h(e,t,NodeFilter.SHOW_TEXT)},t.treeWalker=h,t.walk=g,t.blob2base64=function(e){return new Promise(function(t){var n=new FileReader;n.readAsDataURL(e),n.onloadend=function(){t(n.result)}})},t.defer=function(){var e=this;this.resolve=null,this.reject=null,this.id=i(),this.promise=new Promise(function(t,n){e.resolve=t,e.reject=n}),Object.freeze(this)},t.querySelectorByType=function(e,t,n){var a;if('undefined'!=typeof e.querySelector&&(a=e.querySelector(t+'[*|type="'+n+'"]')),!a||0===a.length){a=p(e,t);for(var o=0;o<a.length;o++)if(a[o].getAttributeNS('http://www.idpf.org/2007/ops','type')===n||a[o].getAttribute('epub:type')===n)return a[o]}else return a},t.findChildren=function(e){for(var t=[],n=e.childNodes,a=0,i;a<n.length;a++)i=n[a],1===i.nodeType&&t.push(i);return t},t.parents=f,t.filterChildren=function(e,t,n){for(var a=[],o=e.childNodes,s=0,i;s<o.length;s++)if(i=o[s],1===i.nodeType&&i.nodeName.toLowerCase()===t){if(n)return i;a.push(i)}if(!n)return a},t.getParentByTagName=function(e,t){var n;if(null!==e&&''!==t)for(n=e.parentNode;1===n.nodeType;){if(n.tagName.toLowerCase()===t)return n;n=n.parentNode}};var y=t.requestAnimationFrame='undefined'!=typeof window&&(window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||window.msRequestAnimationFrame),v=1,b=3,k='undefined'==typeof URL?'undefined'==typeof window?void 0:window.URL||window.webkitURL||window.mozURL:URL,x=t.RangeObject=function(){function e(){a(this,e),this.collapsed=!1,this.commonAncestorContainer=void 0,this.endContainer=void 0,this.endOffset=void 0,this.startContainer=void 0,this.startOffset=void 0}return m(e,[{key:'setStart',value:function(e,t){this.startContainer=e,this.startOffset=t,this.endContainer?this.commonAncestorContainer=this._commonAncestorContainer():this.collapse(!0),this._checkCollapsed()}},{key:'setEnd',value:function(e,t){this.endContainer=e,this.endOffset=t,this.startContainer?(this.collapsed=!1,this.commonAncestorContainer=this._commonAncestorContainer()):this.collapse(!1),this._checkCollapsed()}},{key:'collapse',value:function(e){this.collapsed=!0,e?(this.endContainer=this.startContainer,this.endOffset=this.startOffset,this.commonAncestorContainer=this.startContainer.parentNode):(this.startContainer=this.endContainer,this.startOffset=this.endOffset,this.commonAncestorContainer=this.endOffset.parentNode)}},{key:'selectNode',value:function(e){var t=e.parentNode,n=Array.prototype.indexOf.call(t.childNodes,e);this.setStart(t,n),this.setEnd(t,n+1)}},{key:'selectNodeContents',value:function(e){var t=e.childNodes[e.childNodes-1],n=3===e.nodeType?e.textContent.length:parent.childNodes.length;this.setStart(e,0),this.setEnd(e,n)}},{key:'_commonAncestorContainer',value:function(e,t){var n=f(e||this.startContainer),a=f(t||this.endContainer);if(n[0]==a[0])for(var o=0;o<n.length;o++)if(n[o]!=a[o])return n[o-1]}},{key:'_checkCollapsed',value:function(){this.collapsed=this.startContainer===this.endContainer&&this.startOffset===this.endOffset}},{key:'toString',value:function(){}}]),e}()},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 o='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},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(0),r=1,l=3,d=function(){function e(t,n,i){a(this,e);var r;if(this.str='',this.base={},this.spinePos=0,this.range=!1,this.path={},this.start=null,this.end=null,!(this instanceof e))return new e(t,n,i);if('string'==typeof n?this.base=this.parseComponent(n):'object'===('undefined'==typeof n?'undefined':o(n))&&n.steps&&(this.base=n),r=this.checkType(t),'string'===r)return this.str=t,(0,s.extend)(this,this.parse(t));if('range'===r)return(0,s.extend)(this,this.fromRange(t,this.base,i));if('node'===r)return(0,s.extend)(this,this.fromNode(t,this.base,i));if('EpubCFI'===r&&t.path)return t;if(!t)return this;throw new TypeError('not a valid argument for EpubCFI')}return i(e,[{key:'checkType',value:function(t){return this.isCfiString(t)?'string':'object'===('undefined'==typeof t?'undefined':o(t))&&('Range'===(0,s.type)(t)||'undefined'!=typeof t.startContainer)?'range':'object'===('undefined'==typeof t?'undefined':o(t))&&'undefined'!=typeof t.nodeType?'node':'object'===('undefined'==typeof t?'undefined':o(t))&&t instanceof e&&'EpubCFI'}},{key:'parse',value:function(e){var t={spinePos:-1,range:!1,base:{},path:{},start:null,end:null},n,a,i;return'string'==typeof e?(0===e.indexOf('epubcfi(')&&')'===e[e.length-1]&&(e=e.slice(8,e.length-1)),n=this.getChapterComponent(e),!n)?{spinePos:-1}:(t.base=this.parseComponent(n),a=this.getPathComponent(e),t.path=this.parseComponent(a),i=this.getRange(e),i&&(t.range=!0,t.start=this.parseComponent(i[0]),t.end=this.parseComponent(i[1])),t.spinePos=t.base.steps[1].index,t):{spinePos:-1}}},{key:'parseComponent',value:function(e){var t={steps:[],terminal:{offset:null,assertion:null}},n=e.split(':'),a=n[0].split('/'),i;return 1<n.length&&(i=n[1],t.terminal=this.parseTerminal(i)),''===a[0]&&a.shift(),t.steps=a.map(function(e){return this.parseStep(e)}.bind(this)),t}},{key:'parseStep',value:function(e){var t,n,a,i,o;if(i=e.match(/\[(.*)\]/),i&&i[1]&&(o=i[1]),n=parseInt(e),!isNaN(n))return 0==n%2?(t='element',a=n/2-1):(t='text',a=(n-1)/2),{type:t,index:a,id:o||null}}},{key:'parseTerminal',value:function(e){var t=e.match(/\[(.*)\]/),n,a;return t&&t[1]?(n=parseInt(e.split('[')[0]),a=t[1]):n=parseInt(e),(0,s.isNumber)(n)||(n=null),{offset:n,assertion:a}}},{key:'getChapterComponent',value:function(e){var t=e.split('!');return t[0]}},{key:'getPathComponent',value:function(e){var t=e.split('!');if(t[1]){var n=t[1].split(',');return n[0]}}},{key:'getRange',value:function(e){var t=e.split(',');return 3===t.length&&[t[1],t[2]]}},{key:'getCharecterOffsetComponent',value:function(e){var t=e.split(':');return t[1]||''}},{key:'joinSteps',value:function(e){return e?e.map(function(e){var t='';return'element'===e.type&&(t+=2*(e.index+1)),'text'===e.type&&(t+=1+2*e.index),e.id&&(t+='['+e.id+']'),t}).join('/'):''}},{key:'segmentString',value:function(e){var t='/';return t+=this.joinSteps(e.steps),e.terminal&&null!=e.terminal.offset&&(t+=':'+e.terminal.offset),e.terminal&&null!=e.terminal.assertion&&(t+='['+e.terminal.assertion+']'),t}},{key:'toString',value:function(){var e='epubcfi(';return e+=this.segmentString(this.base),e+='!',e+=this.segmentString(this.path),this.range&&this.start&&(e+=',',e+=this.segmentString(this.start)),this.range&&this.end&&(e+=',',e+=this.segmentString(this.end)),e+=')',e}},{key:'compare',value:function(t,n){var a,o,s,r,l,l;if('string'==typeof t&&(t=new e(t)),'string'==typeof n&&(n=new e(n)),t.spinePos>n.spinePos)return 1;if(t.spinePos<n.spinePos)return-1;t.range?(a=t.path.steps.concat(t.start.steps),s=t.start.terminal):(a=t.path.steps,s=t.path.terminal),n.range?(o=n.path.steps.concat(n.start.steps),r=n.start.terminal):(o=n.path.steps,r=n.path.terminal);for(var d=0;d<a.length;d++){if(!a[d])return-1;if(!o[d])return 1;if(a[d].index>o[d].index)return 1;if(a[d].index<o[d].index)return-1}return a.length<o.length?1:s.offset>r.offset?1:s.offset<r.offset?-1:0}},{key:'step',value:function(e){var t=e.nodeType===l?'text':'element';return{id:e.id,tagName:e.tagName,type:t,index:this.position(e)}}},{key:'filteredStep',value:function(e,t){var n=this.filter(e,t),a;if(n)return a=n.nodeType===l?'text':'element',{id:n.id,tagName:n.tagName,type:a,index:this.filteredPosition(n,t)}}},{key:'pathTo',value:function(e,t,n){for(var a={steps:[],terminal:{offset:null,assertion:null}},i=e,o;i&&i.parentNode&&i.parentNode.nodeType!=9;)o=n?this.filteredStep(i,n):this.step(i),o&&a.steps.unshift(o),i=i.parentNode;return null!=t&&0<=t&&(a.terminal.offset=t,'text'!=a.steps[a.steps.length-1].type&&a.steps.push({type:'text',index:0})),a}},{key:'equalStep',value:function(e,t){return e&&t&&e.index===t.index&&e.id===t.id&&e.type===t.type}},{key:'fromRange',value:function(e,t,n){var a={range:!1,base:{},path:{},start:null,end:null},s=e.startContainer,r=e.endContainer,l=e.startOffset,d=e.endOffset,u=!1;if(n&&(u=null!=s.ownerDocument.querySelector('.'+n)),'string'==typeof t?(a.base=this.parseComponent(t),a.spinePos=a.base.steps[1].index):'object'===('undefined'==typeof t?'undefined':o(t))&&(a.base=t),e.collapsed)u&&(l=this.patchOffset(s,l,n)),a.path=this.pathTo(s,l,n);else{a.range=!0,u&&(l=this.patchOffset(s,l,n)),a.start=this.pathTo(s,l,n),u&&(d=this.patchOffset(r,d,n)),a.end=this.pathTo(r,d,n),a.path={steps:[],terminal:null};var c=a.start.steps.length,p;for(p=0;p<c&&this.equalStep(a.start.steps[p],a.end.steps[p]);p++)p===c-1?a.start.terminal===a.end.terminal&&(a.path.steps.push(a.start.steps[p]),a.range=!1):a.path.steps.push(a.start.steps[p]);a.start.steps=a.start.steps.slice(a.path.steps.length),a.end.steps=a.end.steps.slice(a.path.steps.length)}return a}},{key:'fromNode',value:function(e,t,n){var a={range:!1,base:{},path:{},start:null,end:null};return'string'==typeof t?(a.base=this.parseComponent(t),a.spinePos=a.base.steps[1].index):'object'===('undefined'==typeof t?'undefined':o(t))&&(a.base=t),a.path=this.pathTo(e,null,n),a}},{key:'filter',value:function(e,t){var n=!1,a,i,o,s,r;return e.nodeType===l?(n=!0,o=e.parentNode,a=e.parentNode.classList.contains(t)):(n=!1,a=e.classList.contains(t)),a&&n?(s=o.previousSibling,r=o.nextSibling,s&&s.nodeType===l?i=s:r&&r.nodeType===l&&(i=r),i?i:e):a&&!n?!1:e}},{key:'patchOffset',value:function(e,t,n){if(e.nodeType!=l)throw new Error('Anchor must be a text node');var a=e,i=t;for(e.parentNode.classList.contains(n)&&(a=e.parentNode);a.previousSibling;){if(a.previousSibling.nodeType!==r)i+=a.previousSibling.textContent.length;else if(a.previousSibling.classList.contains(n))i+=a.previousSibling.textContent.length;else break;a=a.previousSibling}return i}},{key:'normalizedMap',value:function(e,t,n){var a={},o=-1,s=e.length,d,i,u;for(d=0;d<s;d++)i=e[d].nodeType,i===r&&e[d].classList.contains(n)&&(i=l),0<d&&i===l&&u===l?a[d]=o:t===i&&(++o,a[d]=o),u=i;return a}},{key:'position',value:function(e){var t,n;return e.nodeType===r?(t=e.parentNode.children,!t&&(t=(0,s.findChildren)(e.parentNode)),n=Array.prototype.indexOf.call(t,e)):(t=this.textNodes(e.parentNode),n=t.indexOf(e)),n}},{key:'filteredPosition',value:function(e,t){var n,a,i;return e.nodeType===r?(n=e.parentNode.children,i=this.normalizedMap(n,r,t)):(n=e.parentNode.childNodes,e.parentNode.classList.contains(t)&&(e=e.parentNode,n=e.parentNode.childNodes),i=this.normalizedMap(n,l,t)),a=Array.prototype.indexOf.call(n,e),i[a]}},{key:'stepsToXpath',value:function(e){var t=['.','*'];return e.forEach(function(e){var n=e.index+1;e.id?t.push('*[position()='+n+' and @id=\''+e.id+'\']'):'text'===e.type?t.push('text()['+n+']'):t.push('*['+n+']')}),t.join('/')}},{key:'stepsToQuerySelector',value:function(e){var t=['html'];return e.forEach(function(e){var n=e.index+1;e.id?t.push('#'+e.id):'text'===e.type||t.push('*:nth-child('+n+')')}),t.join('>')}},{key:'textNodes',value:function(e,t){return Array.prototype.slice.call(e.childNodes).filter(function(e){return e.nodeType===l||t&&e.classList.contains(t)})}},{key:'walkToNode',value:function(e,t,n){var a=t||document,o=a.documentElement,r=e.length,l,d,u;for(u=0;u<r&&(d=e[u],'element'===d.type?d.id?o=a.getElementById(d.id):(l=o.children||(0,s.findChildren)(o),o=l[d.index]):'text'===d.type&&(o=this.textNodes(o,n)[d.index]),!!o);u++);return o}},{key:'findNode',value:function(e,t,n){var a=t||document,i,o;return n||'undefined'==typeof a.evaluate?n?i=this.walkToNode(e,a,n):i=this.walkToNode(e,a):(o=this.stepsToXpath(e),i=a.evaluate(o,a,null,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue),i}},{key:'fixMiss',value:function(e,t,n,a){var i=this.findNode(e.slice(0,-1),n,a),o=i.childNodes,s=this.normalizedMap(o,l,a),d=e[e.length-1].index,u,c;for(var p in s){if(!s.hasOwnProperty(p))return;if(s[p]===d)if(u=o[p],c=u.textContent.length,t>c)t-=c;else{i=u.nodeType===r?u.childNodes[0]:u;break}}return{container:i,offset:t}}},{key:'toRange',value:function(e,t){var n=e||document,a=this,i=!!t&&null!=n.querySelector('.'+t),o,r,l,d,u,c,p,h;if(o='undefined'==typeof n.createRange?new s.RangeObject:n.createRange(),a.range?(r=a.start,c=a.path.steps.concat(r.steps),d=this.findNode(c,n,i?t:null),l=a.end,p=a.path.steps.concat(l.steps),u=this.findNode(p,n,i?t:null)):(r=a.path,c=a.path.steps,d=this.findNode(a.path.steps,n,i?t:null)),d)try{null==r.terminal.offset?o.setStart(d,0):o.setStart(d,r.terminal.offset)}catch(a){h=this.fixMiss(c,r.terminal.offset,n,i?t:null),o.setStart(h.container,h.offset)}else return console.log('No startContainer found for',this.toString()),null;if(u)try{null==l.terminal.offset?o.setEnd(u,0):o.setEnd(u,l.terminal.offset)}catch(s){h=this.fixMiss(p,a.end.terminal.offset,n,i?t:null),o.setEnd(h.container,h.offset)}return o}},{key:'isCfiString',value:function(e){return'string'==typeof e&&0===e.indexOf('epubcfi(')&&')'===e[e.length-1]}},{key:'generateChapterComponent',value:function(e,t,n){var a=parseInt(t),i='/'+2*(e+1)+'/';return i+=2*(a+1),n&&(i+='['+n+']'),i}},{key:'collapse',value:function(e){this.range&&(this.range=!1,e?(this.path.steps=this.path.steps.concat(this.start.steps),this.path.terminal=this.start.terminal):(this.path.steps=this.path.steps.concat(this.end.steps),this.path.terminal=this.end.terminal))}}]),e}();t.default=d,e.exports=t['default']},function(e,t,n){'use strict';var a=n(27),o=n(41),s=Function.prototype.apply,r=Function.prototype.call,i=Object.create,l=Object.defineProperty,d=Object.defineProperties,u=Object.prototype.hasOwnProperty,c={configurable:!0,enumerable:!1,writable:!0},p,h,g,f,m,y,v;p=function(e,t){var n;return o(t),u.call(this,'__ee__')?n=this.__ee__:(n=c.value=i(null),l(this,'__ee__',c),c.value=null),n[e]?'object'==typeof n[e]?n[e].push(t):n[e]=[n[e],t]:n[e]=t,this},h=function(e,t){var n,a;return o(t),a=this,p.call(this,e,n=function(){g.call(a,e,n),s.call(t,this,arguments)}),n.__eeOnceListener__=t,this},g=function(e,t){var n,a,s,r;if(o(t),!u.call(this,'__ee__'))return this;if(n=this.__ee__,!n[e])return this;if(a=n[e],'object'==typeof a)for(r=0;s=a[r];++r)(s===t||s.__eeOnceListener__===t)&&(2===a.length?n[e]=a[r?0:1]:a.splice(r,1));else(a===t||a.__eeOnceListener__===t)&&delete n[e];return this},f=function(e){var t,n,a,i,o;if(u.call(this,'__ee__')&&(i=this.__ee__[e],!!i))if('object'==typeof i){for(n=arguments.length,o=Array(n-1),t=1;t<n;++t)o[t-1]=arguments[t];for(i=i.slice(),t=0;a=i[t];++t)s.call(a,this,o)}else switch(arguments.length){case 1:r.call(i,this);break;case 2:r.call(i,this,arguments[1]);break;case 3:r.call(i,this,arguments[1],arguments[2]);break;default:for(n=arguments.length,o=Array(n-1),t=1;t<n;++t)o[t-1]=arguments[t];s.call(i,this,o);}},m={on:p,once:h,off:g,emit:f},y={on:a(p),once:a(h),off:a(g),emit:a(f)},v=d({},y),e.exports=t=function(e){return null==e?i(v):d(Object(e),y)},t.methods=m},function(e,t){'use strict';Object.defineProperty(t,'__esModule',{value:!0});var n=t.DOM_EVENTS=['keydown','keyup','keypressed','mouseup','mousedown','click','touchend','touchstart'],a=t.EVENTS={BOOK:{OPEN_FAILED:'openFailed'},CONTENTS:{EXPAND:'expand',RESIZE:'resize',SELECTED:'selected',SELECTED_RANGE:'selectedRange',LINK_CLICKED:'linkClicked'},LOCATIONS:{CHANGED:'changed'},MANAGERS:{RESIZE:'resize',RESIZED:'resized',ORIENTATION_CHANGE:'orientationchange',ADDED:'added',SCROLL:'scroll',SCROLLED:'scrolled'},VIEWS:{AXIS:'axis',LOAD_ERROR:'loaderror',RENDERED:'rendered',RESIZED:'resized',DISPLAYED:'displayed',SHOWN:'shown',HIDDEN:'hidden',MARK_CLICKED:'markClicked'},RENDITION:{STARTED:'started',ATTACHED:'attached',DISPLAYED:'displayed',DISPLAY_ERROR:'displayerror',RENDERED:'rendered',REMOVED:'removed',RESIZED:'resized',ORIENTATION_CHANGE:'orientationchange',LOCATION_CHANGED:'locationChanged',RELOCATED:'relocated',MARK_CLICKED:'markClicked',SELECTED:'selected',LAYOUT:'layout'},LAYOUT:{UPDATED:'updated'}}},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}}(),o=n(6),s=function(e){return e&&e.__esModule?e:{default:e}}(o),r=function(){function e(t){a(this,e);var n,i;n=t.indexOf('://'),-1<n&&(t=new URL(t).pathname),i=this.parse(t),this.path=t,this.directory=this.isDirectory(t)?t:i.dir+'/',this.filename=i.base,this.extension=i.ext.slice(1)}return i(e,[{key:'parse',value:function(e){return s.default.parse(e)}},{key:'isAbsolute',value:function(e){return s.default.isAbsolute(e||this.path)}},{key:'isDirectory',value:function(e){return'/'===e.charAt(e.length-1)}},{key:'resolve',value:function(e){return s.default.resolve(this.directory,e)}},{key:'relative',value:function(e){return s.default.relative(this.directory,e)}},{key:'splitPath',value:function(e){return this.splitPathRe.exec(e).slice(1)}},{key:'toString',value:function(){return this.path}}]),e}();t.default=r,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 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}}(),s=n(4),r=a(s),l=n(6),d=a(l),u=function(){function e(t,n){i(this,e);var a=-1<t.indexOf('://'),o=t,s;if(this.Url=void 0,this.href=t,this.protocol='',this.origin='',this.hash='',this.hash='',this.search='',this.base=n,!a&&!1!==n&&'string'!=typeof n&&window&&window.location&&(this.base=window.location.href),a||this.base)try{this.Url=this.base?new URL(t,this.base):new URL(t),this.href=this.Url.href,this.protocol=this.Url.protocol,this.origin=this.Url.origin,this.hash=this.Url.hash,this.search=this.Url.search,o=this.Url.pathname}catch(t){this.Url=void 0,this.base&&(s=new r.default(this.base),o=s.resolve(o))}this.Path=new r.default(o),this.directory=this.Path.directory,this.filename=this.Path.filename,this.extension=this.Path.extension}return o(e,[{key:'path',value:function(){return this.Path}},{key:'resolve',value:function(e){var t=-1<e.indexOf('://'),n;return t?e:(n=d.default.resolve(this.directory,e),this.origin+n)}},{key:'relative',value:function(e){return d.default.relative(e,this.directory)}},{key:'toString',value:function(){return this.href}}]),e}();t.default=u,e.exports=t['default']},function(e){'use strict';function t(e){if('string'!=typeof e)throw new TypeError('Path must be a string. Received '+e)}function n(e,t){for(var n='',a=-1,o=0,s=0,i;s<=e.length;++s){if(s<e.length)i=e.charCodeAt(s);else if(47===i)break;else i=47;if(47===i){if(a==s-1||1==o);else if(a!=s-1&&2==o){if(2>n.length||46!==n.charCodeAt(n.length-1)||46!==n.charCodeAt(n.length-2))if(2<n.length){for(var r=n.length-1,l=r;0<=l&&47!==n.charCodeAt(l);--l);if(l!=r){n=-1==l?'':n.slice(0,l),a=s,o=0;continue}}else if(2===n.length||1===n.length){n='',a=s,o=0;continue}t&&(0<n.length?n+='/..':n='..')}else 0<n.length?n+='/'+e.slice(a+1,s):n=e.slice(a+1,s);a=s,o=0}else 46===i&&-1!=o?++o:o=-1}return n}function a(e,t){var n=t.dir||t.root,a=t.base||(t.name||'')+(t.ext||'');return n?n===t.root?n+a:n+e+a:a}if(!o)var o={cwd:function(){return'/'}};var s={resolve:function(){for(var e='',a=!1,s=arguments.length-1,i;-1<=s&&!a;s--){var r;(0<=s?r=arguments[s]:(void 0==i&&(i=o.cwd()),r=i),t(r),0!==r.length)&&(e=r+'/'+e,a=47===r.charCodeAt(0))}return e=n(e,!a),a?0<e.length?'/'+e:'/':0<e.length?e:'.'},normalize:function(e){if(t(e),0===e.length)return'.';var a=47===e.charCodeAt(0),i=47===e.charCodeAt(e.length-1);return e=n(e,!a),0!==e.length||a||(e='.'),0<e.length&&i&&(e+='/'),a?'/'+e:e},isAbsolute:function(e){return t(e),0<e.length&&47===e.charCodeAt(0)},join:function(){if(0===arguments.length)return'.';for(var e=0,n,a;e<arguments.length;++e)a=arguments[e],t(a),0<a.length&&(void 0==n?n=a:n+='/'+a);return void 0===n?'.':s.normalize(n)},relative:function(e,n){if(t(e),t(n),e===n)return'';if(e=s.resolve(e),n=s.resolve(n),e===n)return'';for(var a=1;a<e.length&&47===e.charCodeAt(a);++a);for(var o=e.length,r=o-a,l=1;l<n.length&&47===n.charCodeAt(l);++l);for(var d=n.length,u=d-l,c=r<u?r:u,p=-1,h=0;h<=c;++h){if(h==c){if(u>c){if(47===n.charCodeAt(l+h))return n.slice(l+h+1);if(0==h)return n.slice(l+h)}else r>c&&(47===e.charCodeAt(a+h)?p=h:0==h&&(p=0));break}var i=e.charCodeAt(a+h),g=n.charCodeAt(l+h);if(i!==g)break;else 47===i&&(p=h)}var f='';for(h=a+p+1;h<=o;++h)(h===o||47===e.charCodeAt(h))&&(f+=0===f.length?'..':'/..');return 0<f.length?f+n.slice(l+p):(l+=p,47===n.charCodeAt(l)&&++l,n.slice(l))},_makeLong:function(e){return e},dirname:function(e){if(t(e),0===e.length)return'.';for(var n=e.charCodeAt(0),a=47===n,o=-1,s=!0,r=e.length-1;1<=r;--r)if(n=e.charCodeAt(r),47!==n)s=!1;else if(!s){o=r;break}return-1===o?a?'/':'.':a&&1===o?'//':e.slice(0,o)},basename:function(e,n){if(n!==void 0&&'string'!=typeof n)throw new TypeError('"ext" argument must be a string');t(e);var a=0,o=-1,s=!0,r;if(void 0!==n&&0<n.length&&n.length<=e.length){if(n.length===e.length&&n===e)return'';var i=n.length-1,l=-1;for(r=e.length-1;0<=r;--r){var d=e.charCodeAt(r);if(47!==d)-1==l&&(s=!1,l=r+1),0<=i&&(d===n.charCodeAt(i)?-1==--i&&(o=r):(i=-1,o=l));else if(!s){a=r+1;break}}return a===o?o=l:-1===o&&(o=e.length),e.slice(a,o)}for(r=e.length-1;0<=r;--r)if(47!==e.charCodeAt(r))-1==o&&(s=!1,o=r+1);else if(!s){a=r+1;break}return-1===o?'':e.slice(a,o)},extname:function(e){t(e);for(var n=-1,a=0,o=-1,s=!0,r=0,l=e.length-1,i;0<=l;--l){if(i=e.charCodeAt(l),47===i){if(!s){a=l+1;break}continue}-1==o&&(s=!1,o=l+1),46===i?-1==n?n=l:1!=r&&(r=1):-1!==n&&(r=-1)}return-1===n||-1===o||0==r||1==r&&n===o-1&&n===a+1?'':e.slice(n,o)},format:function(e){if(null===e||'object'!=typeof e)throw new TypeError('Parameter "pathObject" must be an object, not '+typeof e);return a('/',e)},parse:function(e){t(e);var n={root:'',dir:'',base:'',ext:'',name:''};if(0===e.length)return n;var a=e.charCodeAt(0),o=47===a,s;o?(n.root='/',s=1):s=0;for(var r=-1,l=0,d=-1,u=!0,c=e.length-1,i=0;c>=s;--c){if(a=e.charCodeAt(c),47===a){if(!u){l=c+1;break}continue}-1==d&&(u=!1,d=c+1),46===a?-1==r?r=c:1!=i&&(i=1):-1!=r&&(i=-1)}return-1==r||-1==d||0==i||1==i&&r==d-1&&r==l+1?-1!=d&&(0==l&&o?n.base=n.name=e.slice(1,d):n.base=n.name=e.slice(l,d)):(0==l&&o?(n.name=e.slice(1,r),n.base=e.slice(1,d)):(n.name=e.slice(l,r),n.base=e.slice(l,d)),n.ext=e.slice(r,d)),0<l?n.dir=e.slice(0,l-1):o&&(n.dir='/'),n},sep:'/',delimiter:':',posix:null};e.exports=s},function(e,t,n){'use strict';function a(e){return e&&e.__esModule?e:{default:e}}Object.defineProperty(t,'__esModule',{value:!0}),t.replaceBase=function(e,t){var n=t.url,a=-1<n.indexOf('://'),i,s;e&&(s=(0,o.qs)(e,'head'),i=(0,o.qs)(s,'base'),!i&&(i=e.createElement('base'),s.insertBefore(i,s.firstChild)),!a&&window&&window.location&&(n=window.location.origin+n),i.setAttribute('href',n))},t.replaceCanonical=function(e,t){var n=t.canonical,a,i;e&&(a=(0,o.qs)(e,'head'),i=(0,o.qs)(a,'link[rel=\'canonical\']'),i?i.setAttribute('href',n):(i=e.createElement('link'),i.setAttribute('rel','canonical'),i.setAttribute('href',n),a.appendChild(i)))},t.replaceMeta=function(e,t){var n=t.idref,a,i;e&&(a=(0,o.qs)(e,'head'),i=(0,o.qs)(a,'link[property=\'dc.identifier\']'),i?i.setAttribute('content',n):(i=e.createElement('meta'),i.setAttribute('name','dc.identifier'),i.setAttribute('content',n),a.appendChild(i)))},t.replaceLinks=function(e,t){var n=e.querySelectorAll('a[href]');if(n.length)for(var a=(0,o.qs)(e.ownerDocument,'base'),r=a?a.getAttribute('href'):void 0,l=function(e){var n=e.getAttribute('href');if(0!==n.indexOf('mailto:')){var a=-1<n.indexOf('://'),i=new s.default(n,r);a?e.setAttribute('target','_blank'):e.onclick=function(){return i&&i.hash?t(i.Path.path+i.hash):i?t(i.Path.path):t(n),!1}}}.bind(this),d=0;d<n.length;d++)l(n[d])},t.substitute=function(e,t,n){return t.forEach(function(t,a){t&&n[a]&&(e=e.replace(new RegExp(t,'g'),n[a]))}),e};var o=n(0),i=n(5),s=a(i),r=n(4),l=a(r)},function(e){var t=function(){return this}();try{t=t||Function('return this')()||(1,eval)('this')}catch(n){'object'==typeof window&&(t=window)}e.exports=t},function(e,t,n){'use strict';var a=n(34)();e.exports=function(e){return e!==a&&null!==e}},function(e,t){'use strict';function n(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModule',{value:!0});var a=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}}(),i=function(){function e(t){n(this,e),this.context=t||this,this.hooks=[]}return a(e,[{key:'register',value:function(){for(var e=0;e<arguments.length;++e)if('function'==typeof arguments[e])this.hooks.push(arguments[e]);else for(var t=0;t<arguments[e].length;++t)this.hooks.push(arguments[e][t])}},{key:'trigger',value:function(){var e=arguments,t=this.context,n=[];return this.hooks.forEach(function(a){var i=a.apply(t,e);i&&'function'==typeof i.then&&n.push(i)}),Promise.all(n)}},{key:'list',value:function(){return this.hooks}},{key:'clear',value:function(){return this.hooks=[]}}]),e}();t.default=i,e.exports=t['default']},function(e,t,n){'use strict';Object.defineProperty(t,'__esModule',{value:!0});var a=n(0),i=n(4),o=function(e){return e&&e.__esModule?e:{default:e}}(i);t.default=function(e,t,n,i){function s(t){u.reject(t)}function r(){if(this.readyState===XMLHttpRequest.DONE){var e=!1;if((''===this.responseType||'document'===this.responseType)&&(e=this.responseXML),200===this.status||0===this.status||e){var n;if(!this.response&&!e)return u.reject({status:this.status,message:'Empty Response',stack:new Error().stack}),u.promise;if(403===this.status)return u.reject({status:this.status,response:this.response,message:'Forbidden',stack:new Error().stack}),u.promise;n=e?this.responseXML:(0,a.isXml)(t)?(0,a.parse)(this.response,'text/xml'):'xhtml'==t?(0,a.parse)(this.response,'application/xhtml+xml'):'html'==t||'htm'==t?(0,a.parse)(this.response,'text/html'):'json'==t?JSON.parse(this.response):'blob'==t?l?this.response:new Blob([this.response]):this.response,u.resolve(n)}else u.reject({status:this.status,message:this.response,stack:new Error().stack})}}var l='undefined'!=typeof window&&window.URL,d=l?'blob':'arraybuffer',u=new a.defer,c=new XMLHttpRequest,p=XMLHttpRequest.prototype,h;for(h in'overrideMimeType'in p||Object.defineProperty(p,'overrideMimeType',{value:function(){}}),n&&(c.withCredentials=!0),c.onreadystatechange=r,c.onerror=s,c.open('GET',e,!0),i)c.setRequestHeader(h,i[h]);return'json'==t&&c.setRequestHeader('Accept','application/json'),t||(t=new o.default(e).extension),'blob'==t&&(c.responseType=d),(0,a.isXml)(t)&&c.overrideMimeType('text/xml'),'xhtml'==t,'html'!=t&&'htm'!=t,'binary'==t&&(c.responseType='arraybuffer'),c.send(),u.promise},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}),t.Task=void 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}}(),o=n(0),s=function(){function e(t){a(this,e),this._q=[],this.context=t,this.tick=o.requestAnimationFrame,this.running=!1,this.paused=!1}return i(e,[{key:'enqueue',value:function(){var e=[].shift.call(arguments),t=arguments,n,a,i;if(!e)throw new Error('No Task Provided');return'function'==typeof e?(n=new o.defer,a=n.promise,i={task:e,args:t,deferred:n,promise:a}):i={promise:e},this._q.push(i),!1!=this.paused||this.running||this.run(),i.promise}},{key:'dequeue',value:function(){var e,t,n;if(this._q.length&&!this.paused){if(e=this._q.shift(),t=e.task,t)return n=t.apply(this.context,e.args),n&&'function'==typeof n.then?n.then(function(){e.deferred.resolve.apply(this.context,arguments)}.bind(this),function(){e.deferred.reject.apply(this.context,arguments)}.bind(this)):(e.deferred.resolve.apply(this.context,n),e.promise);if(e.promise)return e.promise}else return e=new o.defer,e.deferred.resolve(),e.promise}},{key:'dump',value:function(){for(;this._q.length;)this.dequeue()}},{key:'run',value:function(){var e=this;return this.running||(this.running=!0,this.defered=new o.defer),this.tick.call(window,function(){e._q.length?e.dequeue().then(function(){this.run()}.bind(e)):(e.defered.resolve(),e.running=void 0)}),!0==this.paused&&(this.paused=!1),this.defered.promise}},{key:'flush',value:function(){return this.running?this.running:this._q.length?(this.running=this.dequeue().then(function(){return this.running=void 0,this.flush()}.bind(this)),this.running):void 0}},{key:'clear',value:function(){this._q=[]}},{key:'length',value:function(){return this._q.length}},{key:'pause',value:function(){this.paused=!0}},{key:'stop',value:function(){this._q=[],this.running=!1,this.paused=!0}}]),e}();t.default=s,t.Task=function e(t,n,i){return a(this,e),function(){var e=this,n=arguments||[];return new Promise(function(a,o){n.push(function(e,t){!e&&t?o(t):a(e)}),t.apply(i||e,n)})}}},function(e,t,n){'use strict';function a(e){return e&&e.__esModule?e:{default:e}}function o(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModule',{value:!0});var s=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(2),l=a(r),d=n(0),u=n(1),c=a(u),p=n(19),h=a(p),g=n(7),f=n(3),m='undefined'!=typeof navigator,y=m&&/Chrome/.test(navigator.userAgent),v=m&&!y&&/AppleWebKit/.test(navigator.userAgent),b=function(){function e(t,n,a,i){o(this,e),this.epubcfi=new c.default,this.document=t,this.documentElement=this.document.documentElement,this.content=n||this.document.body,this.window=this.document.defaultView,this._size={width:0,height:0},this.sectionIndex=i||0,this.cfiBase=a||'',this.epubReadingSystem('epub.js',ePub.VERSION),this.listeners()}return s(e,[{key:'width',value:function(e){var t=this.content;return e&&(0,d.isNumber)(e)&&(e+='px'),e&&(t.style.width=e),this.window.getComputedStyle(t).width}},{key:'height',value:function(e){var t=this.content;return e&&(0,d.isNumber)(e)&&(e+='px'),e&&(t.style.height=e),this.window.getComputedStyle(t).height}},{key:'contentWidth',value:function(e){var t=this.content||this.document.body;return e&&(0,d.isNumber)(e)&&(e+='px'),e&&(t.style.width=e),this.window.getComputedStyle(t).width}},{key:'contentHeight',value:function(e){var t=this.content||this.document.body;return e&&(0,d.isNumber)(e)&&(e+='px'),e&&(t.style.height=e),this.window.getComputedStyle(t).height}},{key:'textWidth',value:function(){var e=this.document.createRange(),t=this.content||this.document.body,n=(0,d.borders)(t),a;return e.selectNodeContents(t),a=e.getBoundingClientRect().width,n&&n.width&&(a+=n.width),i(a)}},{key:'textHeight',value:function(){var e=this.document.createRange(),t=this.content||this.document.body,n=(0,d.borders)(t),a;return e.selectNodeContents(t),a=e.getBoundingClientRect().height,a&&n.height&&(a+=n.height),i(a)}},{key:'scrollWidth',value:function(){var e=this.documentElement.scrollWidth;return e}},{key:'scrollHeight',value:function(){var e=this.documentElement.scrollHeight;return e}},{key:'overflow',value:function(e){return e&&(this.documentElement.style.overflow=e),this.window.getComputedStyle(this.documentElement).overflow}},{key:'overflowX',value:function(e){return e&&(this.documentElement.style.overflowX=e),this.window.getComputedStyle(this.documentElement).overflowX}},{key:'overflowY',value:function(e){return e&&(this.documentElement.style.overflowY=e),this.window.getComputedStyle(this.documentElement).overflowY}},{key:'css',value:function(e,t,n){var a=this.content||this.document.body;return t&&a.style.setProperty(e,t,n?'important':''),this.window.getComputedStyle(a)[e]}},{key:'viewport',value:function(e){var t=this.document.querySelector('meta[name=\'viewport\']'),n={width:void 0,height:void 0,scale:void 0,minimum:void 0,maximum:void 0,scalable:void 0},a=[],i={};if(t&&t.hasAttribute('content')){var o=t.getAttribute('content'),s=o.match(/width\s*=\s*([^,]*)/),r=o.match(/height\s*=\s*([^,]*)/),l=o.match(/initial-scale\s*=\s*([^,]*)/),u=o.match(/minimum-scale\s*=\s*([^,]*)/),c=o.match(/maximum-scale\s*=\s*([^,]*)/),p=o.match(/user-scalable\s*=\s*([^,]*)/);s&&s.length&&'undefined'!=typeof s[1]&&(n.width=s[1]),r&&r.length&&'undefined'!=typeof r[1]&&(n.height=r[1]),l&&l.length&&'undefined'!=typeof l[1]&&(n.scale=l[1]),u&&u.length&&'undefined'!=typeof u[1]&&(n.minimum=u[1]),c&&c.length&&'undefined'!=typeof c[1]&&(n.maximum=c[1]),p&&p.length&&'undefined'!=typeof p[1]&&(n.scalable=p[1])}return i=(0,d.defaults)(e||{},n),e&&(i.width&&a.push('width='+i.width),i.height&&a.push('height='+i.height),i.scale&&a.push('initial-scale='+i.scale),'no'===i.scalable?(a.push('minimum-scale='+i.scale),a.push('maximum-scale='+i.scale),a.push('user-scalable='+i.scalable)):(i.scalable&&a.push('user-scalable='+i.scalable),i.minimum&&a.push('minimum-scale='+i.minimum),i.maximum&&a.push('minimum-scale='+i.maximum)),!t&&(t=this.document.createElement('meta'),t.setAttribute('name','viewport'),this.document.querySelector('head').appendChild(t)),t.setAttribute('content',a.join(', ')),this.window.scrollTo(0,0)),i}},{key:'expand',value:function(){this.emit(f.EVENTS.CONTENTS.EXPAND)}},{key:'listeners',value:function(){this.imageLoadListeners(),this.mediaQueryListeners(),this.addEventListeners(),this.addSelectionListeners(),this.resizeListeners(),this.linksHandler()}},{key:'removeListeners',value:function(){this.removeEventListeners(),this.removeSelectionListeners(),clearTimeout(this.expanding)}},{key:'resizeCheck',value:function(){var e=this.textWidth(),t=this.textHeight();(e!=this._size.width||t!=this._size.height)&&(this._size={width:e,height:t},this.onResize&&this.onResize(this._size),this.emit(f.EVENTS.CONTENTS.RESIZE,this._size))}},{key:'resizeListeners',value:function(){clearTimeout(this.expanding),requestAnimationFrame(this.resizeCheck.bind(this)),this.expanding=setTimeout(this.resizeListeners.bind(this),350)}},{key:'transitionListeners',value:function(){var e=this.content;e.style.transitionProperty='font, font-size, font-size-adjust, font-stretch, font-variation-settings, font-weight, width, height',e.style.transitionDuration='0.001ms',e.style.transitionTimingFunction='linear',e.style.transitionDelay='0',this.document.addEventListener('transitionend',this.resizeCheck.bind(this))}},{key:'mediaQueryListeners',value:function(){for(var e=this.document.styleSheets,t=function(e){e.matches&&!this._expanding&&setTimeout(this.expand.bind(this),1)}.bind(this),n=0;n<e.length;n+=1){var a;try{a=e[n].cssRules}catch(t){return}if(!a)return;for(var i=0;i<a.length;i+=1)if(a[i].media){var o=this.window.matchMedia(a[i].media.mediaText);o.addListener(t)}}}},{key:'resizeObservers',value:function(){var e=this;this.observer=new MutationObserver(function(){e.resizeCheck()});this.observer.observe(this.document,{attributes:!0,childList:!0,characterData:!0,subtree:!0})}},{key:'imageLoadListeners',value:function(){for(var e=this.document.querySelectorAll('img'),t=0,n;t<e.length;t++)n=e[t],'undefined'!=typeof n.naturalWidth&&0===n.naturalWidth&&(n.onload=this.expand.bind(this))}},{key:'fontLoadListeners',value:function(){this.document&&this.document.fonts&&this.document.fonts.ready.then(function(){this.resizeCheck()}.bind(this))}},{key:'root',value:function(){return this.document?this.document.documentElement:null}},{key:'locationOf',value:function(e,t){var n={left:0,top:0},a;if(!this.document)return n;if(this.epubcfi.isCfiString(e)){var i=new c.default(e).toRange(this.document,t);if(i)if(i.startContainer.nodeType===Node.ELEMENT_NODE)a=i.startContainer.getBoundingClientRect(),n.left=a.left,n.top=a.top;else if(v){var o=i.startContainer,s=new Range;try{o.nodeType===1?a=o.getBoundingClientRect():i.startOffset+2<o.length?(s.setStart(o,i.startOffset),s.setEnd(o,i.startOffset+2),a=s.getBoundingClientRect()):0<i.startOffset-2?(s.setStart(o,i.startOffset-2),s.setEnd(o,i.startOffset),a=s.getBoundingClientRect()):a=o.parentNode.getBoundingClientRect()}catch(t){console.error(t,t.stack)}}else a=i.getBoundingClientRect()}else if('string'==typeof e&&-1<e.indexOf('#')){var r=e.substring(e.indexOf('#')+1),l=this.document.getElementById(r);l&&(a=l.getBoundingClientRect())}return a&&(n.left=a.left,n.top=a.top),n}},{key:'addStylesheet',value:function(e){return new Promise(function(t){var n=!1,a;return this.document?(a=this.document.querySelector('link[href=\''+e+'\']'),a?void t(!0):void(a=this.document.createElement('link'),a.type='text/css',a.rel='stylesheet',a.href=e,a.onload=a.onreadystatechange=function(){n||this.readyState&&'complete'!=this.readyState||(n=!0,setTimeout(function(){t(!0)},1))},this.document.head.appendChild(a))):void t(!1)}.bind(this))}},{key:'addStylesheetRules',value:function(e){var t='epubjs-inserted-css',n,a;if(this.document&&e&&0!==e.length)if(n=this.document.getElementById('#'+t),n||(n=this.document.createElement('style'),n.id=t),this.document.head.appendChild(n),a=n.sheet,'[object Array]'===Object.prototype.toString.call(e))for(var o=0,i=e.length;o<i;o++){var s=1,r=e[o],l=e[o][0],d='';'[object Array]'===Object.prototype.toString.call(r[1][0])&&(r=r[1],s=0);for(var u=r.length,c;s<u;s++)c=r[s],d+=c[0]+':'+c[1]+(c[2]?' !important':'')+';\n';a.insertRule(l+'{'+d+'}',a.cssRules.length)}else{var p=Object.keys(e);p.forEach(function(t){var n=e[t];if(Array.isArray(n))n.forEach(function(e){var n=Object.keys(e),i=n.map(function(t){return t+':'+e[t]}).join(';');a.insertRule(t+'{'+i+'}',a.cssRules.length)});else{var i=Object.keys(n),o=i.map(function(e){return e+':'+n[e]}).join(';');a.insertRule(t+'{'+o+'}',a.cssRules.length)}})}}},{key:'addScript',value:function(e){return new Promise(function(t){var n=!1,a;return this.document?void(a=this.document.createElement('script'),a.type='text/javascript',a.async=!0,a.src=e,a.onload=a.onreadystatechange=function(){n||this.readyState&&'complete'!=this.readyState||(n=!0,setTimeout(function(){t(!0)},1))},this.document.head.appendChild(a)):void t(!1)}.bind(this))}},{key:'addClass',value:function(e){var t;this.document&&(t=this.content||this.document.body,t&&t.classList.add(e))}},{key:'removeClass',value:function(e){var t;this.document&&(t=this.content||this.document.body,t&&t.classList.remove(e))}},{key:'addEventListeners',value:function(){this.document&&f.DOM_EVENTS.forEach(function(e){this.document.addEventListener(e,this.triggerEvent.bind(this),!1)},this)}},{key:'removeEventListeners',value:function(){this.document&&f.DOM_EVENTS.forEach(function(e){this.document.removeEventListener(e,this.triggerEvent,!1)},this)}},{key:'triggerEvent',value:function(t){this.emit(t.type,t)}},{key:'addSelectionListeners',value:function(){this.document&&this.document.addEventListener('selectionchange',this.onSelectionChange.bind(this),!1)}},{key:'removeSelectionListeners',value:function(){this.document&&this.document.removeEventListener('selectionchange',this.onSelectionChange,!1)}},{key:'onSelectionChange',value:function(){this.selectionEndTimeout&&clearTimeout(this.selectionEndTimeout),this.selectionEndTimeout=setTimeout(function(){var e=this.window.getSelection();this.triggerSelectedEvent(e)}.bind(this),250)}},{key:'triggerSelectedEvent',value:function(e){var t,n;e&&0<e.rangeCount&&(t=e.getRangeAt(0),!t.collapsed&&(n=new c.default(t,this.cfiBase).toString(),this.emit(f.EVENTS.CONTENTS.SELECTED,n),this.emit(f.EVENTS.CONTENTS.SELECTED_RANGE,t)))}},{key:'range',value:function(e,t){var n=new c.default(e);return n.toRange(this.document,t)}},{key:'cfiFromRange',value:function(e,t){return new c.default(e,this.cfiBase,t).toString()}},{key:'cfiFromNode',value:function(e,t){return new c.default(e,this.cfiBase,t).toString()}},{key:'map',value:function(e){var t=new h.default(e);return t.section()}},{key:'size',value:function(e,t){var n={scale:1,scalable:'no'};this.layoutStyle('scrolling'),0<=e&&(this.width(e),n.width=e,this.css('padding','0 '+e/12+'px')),0<=t&&(this.height(t),n.height=t),this.css('margin','0'),this.css('box-sizing','border-box'),this.viewport(n)}},{key:'columns',value:function(e,t,n,a){var i=(0,d.prefixed)('column-axis'),o=(0,d.prefixed)('column-gap'),s=(0,d.prefixed)('column-width'),r=(0,d.prefixed)('column-fill'),l=this.writingMode(),u=0===l.indexOf('vertical')?'vertical':'horizontal';this.layoutStyle('paginated'),'rtl'===this.content.dir&&this.direction('rtl'),this.width(e),this.height(t),this.viewport({width:e,height:t,scale:1,scalable:'no'}),this.css('overflow-y','hidden'),this.css('margin','0',!0),'vertical'==u?(this.css('padding-top',a/2+'px',!0),this.css('padding-bottom',a/2+'px',!0),this.css('padding-left','20px'),this.css('padding-right','20px')):(this.css('padding-top','20px'),this.css('padding-bottom','20px'),this.css('padding-left',a/2+'px',!0),this.css('padding-right',a/2+'px',!0)),this.css('box-sizing','border-box'),this.css('max-width','inherit'),this.css(i,'horizontal'),this.css(r,'auto'),this.css(o,a+'px'),this.css(s,n+'px')}},{key:'scaler',value:function(e,t,n){var a='';this.css('transform-origin','top left'),(0<=t||0<=n)&&(a=' translate('+(t||0)+'px, '+(n||0)+'px )'),this.css('transform','scale('+e+')'+a)}},{key:'fit',value:function(e,t){var n=this.viewport(),a=e/parseInt(n.width),i=t/parseInt(n.height),o=a<i?a:i,s=(t-n.height*o)/2;this.layoutStyle('paginated'),this.width(e),this.height(t),this.overflow('hidden'),this.scaler(o,0,s),this.css('background-color','transparent')}},{key:'direction',value:function(e){this.documentElement&&(this.documentElement.style.direction=e)}},{key:'mapPage',value:function(e,t,n,a,i){var o=new h.default(t,i);return o.page(this,e,n,a)}},{key:'linksHandler',value:function(){var e=this;(0,g.replaceLinks)(this.content,function(t){e.emit(f.EVENTS.CONTENTS.LINK_CLICKED,t)})}},{key:'writingMode',value:function(e){var t=(0,d.prefixed)('writing-mode');return e&&this.documentElement&&(this.documentElement.style[t]=e),this.window.getComputedStyle(this.documentElement)[t]||''}},{key:'layoutStyle',value:function(e){return 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 f.DOM_EVENTS}}]),e}();(0,l.default)(b.prototype),t.default=b,e.exports=t['default']},function(e,t,n){'use strict';function i(e){return e&&e.__esModule?e:{default:e}}function o(e,t){if(!(e instanceof t))throw new TypeError('Cannot call a class as a function')}Object.defineProperty(t,'__esModul