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this.displayed?e.resolve(this):this.render(t).then(function(){this.emit(oe,this),this.onDisplayed(this),this.displayed=!0,e.resolve(this)}.bind(this),(function(t){e.reject(t,this)})),e.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(ae,this)}},{key:"hide",value:function(){this.element.style.visibility="hidden",this.iframe.style.visibility="hidden",this.stopExpanding=!0,this.emit(he,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(t){this.iframe.getBoundingClientRect();var e=this.contents.locationOf(t,this.settings.ignoreClass);return{left:e.left,top:e.top}}},{key:"onDisplayed",value:function(t){}},{key:"onResize",value:function(t,e){}},{key:"bounds",value:function(t){return!t&&this.elementBounds||(this.elementBounds=C(this.element)),this.elementBounds}},{key:"highlight",value:function(t){var e=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=arguments.length>2?arguments[2]:void 0,s=arguments.length>3&&void 0!==arguments[3]?arguments[3]:"epubjs-hl",r=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{};if(this.contents){var o=Object.assign({fill:"yellow","fill-opacity":"0.3","mix-blend-mode":"multiply"},r),a=this.contents.range(t),h=function(){e.emit(le,t,i)};i.epubcfi=t,this.pane||(this.pane=new Ni.Zv(this.iframe,this.element));var l=new Ni.f4(a,s,i,o),u=this.pane.addMark(l);return this.highlights[t]={mark:u,element:u.element,listeners:[h,n]},u.element.setAttribute("ref",s),u.element.addEventListener("click",h),u.element.addEventListener("touchstart",h),n&&(u.element.addEventListener("click",n),u.element.addEventListener("touchstart",n)),u}}},{key:"underline",value:function(t){var e=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=arguments.length>2?arguments[2]:void 0,s=arguments.length>3&&void 0!==arguments[3]?arguments[3]:"epubjs-ul",r=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{};if(this.contents){var o=Object.assign({stroke:"black","stroke-opacity":"0.3","mix-blend-mode":"multiply"},r),a=this.contents.range(t),h=function(){e.emit(le,t,i)};i.epubcfi=t,this.pane||(this.pane=new Ni.Zv(this.iframe,this.element));var l=new Ni.z2(a,s,i,o),u=this.pane.addMark(l);return this.underlines[t]={mark:u,element:u.element,listeners:[h,n]},u.element.setAttribute("ref",s),u.element.addEventListener("click",h),u.element.addEventListener("touchstart",h),n&&(u.element.addEventListener("click",n),u.element.addEventListener("touchstart",n)),u}}},{key:"mark",value:function(t){var e=this,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=arguments.length>2?arguments[2]:void 0;if(this.contents){if(t in this.marks)return this.marks[t];var s=this.contents.range(t);if(s){var r=s.commonAncestorContainer,o=1===r.nodeType?r:r.parentNode,a=function(n){e.emit(le,t,i)};s.collapsed&&1===r.nodeType?(s=new Range).selectNodeContents(r):s.collapsed&&(s=new Range).selectNodeContents(o);var h=this.document.createElement("a");return h.setAttribute("ref","epubjs-mk"),h.style.position="absolute",h.dataset.epubcfi=t,i&&Object.keys(i).forEach((function(t){h.dataset[t]=i[t]})),n&&(h.addEventListener("click",n),h.addEventListener("touchstart",n)),h.addEventListener("click",a),h.addEventListener("touchstart",a),this.placeMark(h,s),this.element.appendChild(h),this.marks[t]={element:h,range:s,listeners:[a,n]},o}}}},{key:"placeMark",value:function(t,e){var i,n,s;if("pre-paginated"===this.layout.name||"horizontal"!==this.settings.axis){var r=e.getBoundingClientRect();i=r.top,n=r.right}else for(var o,a=e.getClientRects(),h=0;h!=a.length;h++)o=a[h],(!s||o.left<s)&&(s=o.left,n=Math.ceil(s/this.layout.props.pageWidth)*this.layout.props.pageWidth-this.layout.gap/2,i=o.top);t.style.top="".concat(i,"px"),t.style.left="".concat(n,"px")}},{key:"unhighlight",value:function(t){var e;t in this.highlights&&(e=this.highlights[t],this.pane.removeMark(e.mark),e.listeners.forEach((function(t){t&&(e.element.removeEventListener("click",t),e.element.removeEventListener("touchstart",t))})),delete this.highlights[t])}},{key:"ununderline",value:function(t){var e;t in this.underlines&&(e=this.underlines[t],this.pane.removeMark(e.mark),e.listeners.forEach((function(t){t&&(e.element.removeEventListener("click",t),e.element.removeEventListener("touchstart",t))})),delete this.underlines[t])}},{key:"unmark",value:function(t){var e;t in this.marks&&(e=this.marks[t],this.element.removeChild(e.element),e.listeners.forEach((function(t){t&&(e.element.removeEventListener("click",t),e.element.removeEventListener("touchstart",t))})),delete this.marks[t])}},{key:"destroy",value:function(){for(var t in this.highlights)this.unhighlight(t);for(var e in this.underlines)this.ununderline(e);for(var i in this.marks)this.unmark(i);this.blobUrl&&B(this.blobUrl),this.displayed&&(this.displayed=!1,this.removeListeners(),this.contents.destroy(),this.stopExpanding=!0,this.element.removeChild(this.iframe),this.pane&&(this.pane.element.remove(),this.pane=void 0),this.iframe=void 0,this.contents=void 0,this._textWidth=null,this._textHeight=null,this._width=null,this._height=null)}}],e&&qi(t.prototype,e),Object.defineProperty(t,"prototype",{writable:!1}),t;var t,e}();r()(Ai.prototype);var Mi=Ai;var Wi=i(32858),Fi=i.n(Wi);function Ui(t){return Ui="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},Ui(t)}function Di(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,Hi(n.key),n)}}function Hi(t){var e=function(t){if("object"!=Ui(t)||!t)return t;var 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o.id=this.id,o.classList.add("epub-container"),o.style.wordSpacing="0",o.style.lineHeight="0",o.style.verticalAlign="top",o.style.position="relative","horizontal"===s&&(o.style.display="flex",o.style.flexDirection="row",o.style.flexWrap="nowrap"),i&&(o.style.width=i),e&&(o.style.height=e),n&&("scroll"===n&&"vertical"===s?(o.style["overflow-y"]=n,o.style["overflow-x"]="hidden"):"scroll"===n&&"horizontal"===s?(o.style["overflow-y"]="hidden",o.style["overflow-x"]=n):o.style.overflow=n),r&&(o.dir=r,o.style.direction=r),r&&this.settings.fullsize&&(document.body.style.direction=r),o}},{key:"wrap",value: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}},{key:"getElement",value:function(t){var e;if(y(t)?e=t:"string"==typeof t&&(e=document.getElementById(t)),!e)throw new Error("Not an Element");return e}},{key:"attachTo",value:function(t){var e,i=this.getElement(t);if(i)return e=this.settings.hidden?this.wrapper:this.container,i.appendChild(e),this.element=i,i}},{key:"getContainer",value:function(){return this.container}},{key:"onResize",value:function(t){m(this.settings.width)&&m(this.settings.height)||(this.resizeFunc=Fi()(t,50),window.addEventListener("resize",this.resizeFunc,!1))}},{key:"onOrientationChange",value:function(t){this.orientationChangeFunc=t,window.addEventListener("orientationchange",this.orientationChangeFunc,!1)}},{key:"size",value:function(t,e){var i,n=t||this.settings.width,s=e||this.settings.height;null===t?(i=this.element.getBoundingClientRect()).width&&(t=Math.floor(i.width),this.container.style.width=t+"px"):m(t)?this.container.style.width=t+"px":this.container.style.width=t,null===e?(i=i||this.element.getBoundingClientRect()).height&&(e=i.height,this.container.style.height=e+"px"):m(e)?this.container.style.height=e+"px":this.container.style.height=e,m(t)||(t=this.container.clientWidth),m(e)||(e=this.container.clientHeight),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};var r=L(),o=window.getComputedStyle(document.body),a=parseFloat(o["padding-left"])||0,h=parseFloat(o["padding-right"])||0,l=parseFloat(o["padding-top"])||0,u=parseFloat(o["padding-bottom"])||0;return n||(t=r.width-a-h),(this.settings.fullsize&&!s||!s)&&(e=r.height-l-u),{width:t-this.containerPadding.left-this.containerPadding.right,height:e-this.containerPadding.top-this.containerPadding.bottom}}},{key:"bounds",value:function(){var t;return"visible"!==this.container.style.overflow&&(t=this.container&&this.container.getBoundingClientRect()),t&&t.width&&t.height?t:L()}},{key:"getSheet",value:function(){var t=document.createElement("style");return t.appendChild(document.createTextNode("")),document.head.appendChild(t),t.sheet}},{key:"addStyleRules",value:function(t,e){var i="#"+this.id+" ",n="";this.sheet||(this.sheet=this.getSheet()),e.forEach((function(t){for(var e in t)t.hasOwnProperty(e)&&(n+=e+":"+t[e]+";")})),this.sheet.insertRule(i+t+" 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t,e}(),Xi=Vi;function Yi(t){return Yi="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},Yi(t)}function Ji(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,Qi(n.key),n)}}function Qi(t){var e=function(t){if("object"!=Yi(t)||!t)return t;var e=t[Symbol.toPrimitive];if(void 0!==e){var i=e.call(t,"string");if("object"!=Yi(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return String(t)}(t);return"symbol"==Yi(e)?e:e+""}var Zi=function(){return t=function t(e){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.container=e,this._views=[],this.length=0,this.hidden=!1},e=[{key:"all",value:function(){return this._views}},{key:"first",value:function(){return 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e=this._views.indexOf(t);e>-1&&this._views.splice(e,1),this.destroy(t),this.length--}},{key:"destroy",value:function(t){t.displayed&&t.destroy(),this.container&&this.container.removeChild(t.element),t=null}},{key:"forEach",value:function(){return this._views.forEach.apply(this._views,arguments)}},{key:"clear",value:function(){var t,e=this.length;if(this.length){for(var i=0;i<e;i++)t=this._views[i],this.destroy(t);this._views=[],this.length=0}}},{key:"find",value:function(t){for(var e,i=this.length,n=0;n<i;n++)if((e=this._views[n]).displayed&&e.section.index==t.index)return e}},{key:"displayed",value:function(){for(var t,e=[],i=this.length,n=0;n<i;n++)(t=this._views[n]).displayed&&e.push(t);return e}},{key:"show",value:function(){for(var t,e=this.length,i=0;i<e;i++)(t=this._views[i]).displayed&&t.show();this.hidden=!1}},{key:"hide",value:function(){for(var 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t;window.addEventListener("unload",function(t){this.destroy()}.bind(this)),t=this.settings.fullsize?window:this.container,this._onScroll=this.onScroll.bind(this),t.addEventListener("scroll",this._onScroll)}},{key:"removeEventListeners",value:function(){(this.settings.fullsize?window:this.container).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(t){var e=window.orientation;this.optsSettings.resizeOnOrientationChange&&this.resize(),clearTimeout(this.orientationTimeout),this.orientationTimeout=setTimeout(function(){this.orientationTimeout=void 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i.call(this,n)}}},{key:"display",value:function(t,e){var i=new X,n=i.promise;(e===t.href||m(e))&&(e=void 0);var s=this.views.find(t);if(s&&t&&"pre-paginated"!==this.layout.name){var r=s.offset();if("ltr"===this.settings.direction)this.scrollTo(r.left,r.top,!0);else{var o=s.width();this.scrollTo(r.left+o,r.top,!0)}if(e){var a=s.locationOf(e),h=s.width();this.moveTo(a,h)}return i.resolve(),n}this.clear();var l=!1;return"pre-paginated"===this.layout.name&&2===this.layout.divisor&&t.properties.includes("page-spread-right")&&(l=!0),this.add(t,l).then(function(t){if(e){var i=t.locationOf(e),n=t.width();this.moveTo(i,n)}}.bind(this),(function(t){i.reject(t)})).then(function(){return this.handleNextPrePaginated(l,t,this.add)}.bind(this)).then(function(){this.views.show(),i.resolve()}.bind(this)),n}},{key:"afterDisplayed",value:function(t){this.emit($t,t)}},{key:"afterResized",value:function(t){this.emit(Jt,t.section)}},{key:"moveTo",value:function(t,e){var i=0,n=0;this.isPaginated?((i=Math.floor(t.left/this.layout.delta)*this.layout.delta)+this.layout.delta>this.container.scrollWidth&&(i=this.container.scrollWidth-this.layout.delta),(n=Math.floor(t.top/this.layout.delta)*this.layout.delta)+this.layout.delta>this.container.scrollHeight&&(n=this.container.scrollHeight-this.layout.delta)):n=t.top,"rtl"===this.settings.direction&&(i+=this.layout.delta,i-=e),this.scrollTo(i,n,!0)}},{key:"add",value:function(t,e){var i=this,n=this.createView(t,e);return this.views.append(n),n.onDisplayed=this.afterDisplayed.bind(this),n.onResize=this.afterResized.bind(this),n.on(ee,(function(t){i.updateAxis(t)})),n.on(ie,(function(t){i.updateWritingMode(t)})),n.display(this.request)}},{key:"append",value:function(t,e){var i=this,n=this.createView(t,e);return this.views.append(n),n.onDisplayed=this.afterDisplayed.bind(this),n.onResize=this.afterResized.bind(this),n.on(ee,(function(t){i.updateAxis(t)})),n.on(ie,(function(t){i.updateWritingMode(t)})),n.display(this.request)}},{key:"prepend",value:function(t,e){var i=this,n=this.createView(t,e);return n.on(re,(function(t){i.counter(t)})),this.views.prepend(n),n.onDisplayed=this.afterDisplayed.bind(this),n.onResize=this.afterResized.bind(this),n.on(ee,(function(t){i.updateAxis(t)})),n.on(ie,(function(t){i.updateWritingMode(t)})),n.display(this.request)}},{key:"counter",value:function(t){"vertical"===this.settings.axis?this.scrollBy(0,t.heightDelta,!0):this.scrollBy(t.widthDelta,0,!0)}},{key:"next",value:function(){var t,e=this.settings.direction;if(this.views.length&&(!this.isPaginated||"horizontal"!==this.settings.axis||e&&"ltr"!==e?this.isPaginated&&"horizontal"===this.settings.axis&&"rtl"===e?(this.scrollLeft=this.container.scrollLeft,"default"===this.settings.rtlScrollType?this.container.scrollLeft>0?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next():this.container.scrollLeft+-1*this.layout.delta>-1*this.container.scrollWidth?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next()):this.isPaginated&&"vertical"===this.settings.axis?(this.scrollTop=this.container.scrollTop,this.container.scrollTop+this.container.offsetHeight<this.container.scrollHeight?this.scrollBy(0,this.layout.height,!0):t=this.views.last().section.next()):t=this.views.last().section.next():(this.scrollLeft=this.container.scrollLeft,this.container.scrollLeft+this.container.offsetWidth+this.layout.delta<=this.container.scrollWidth?this.scrollBy(this.layout.delta,0,!0):t=this.views.last().section.next()),t)){this.clear(),this.updateLayout();var i=!1;return"pre-paginated"===this.layout.name&&2===this.layout.divisor&&t.properties.includes("page-spread-right")&&(i=!0),this.append(t,i).then(function(){return this.handleNextPrePaginated(i,t,this.append)}.bind(this),(function(t){return t})).then(function(){this.isPaginated||"horizontal"!==this.settings.axis||"rtl"!==this.settings.direction||"default"!==this.settings.rtlScrollType||this.scrollTo(this.container.scrollWidth,0,!0),this.views.show()}.bind(this))}}},{key:"prev",value:function(){var t,e=this.settings.direction;if(this.views.length&&(!this.isPaginated||"horizontal"!==this.settings.axis||e&&"ltr"!==e?this.isPaginated&&"horizontal"===this.settings.axis&&"rtl"===e?(this.scrollLeft=this.container.scrollLeft,"default"===this.settings.rtlScrollType?this.container.scrollLeft+this.container.offsetWidth<this.container.scrollWidth?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev():this.container.scrollLeft<0?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev()):this.isPaginated&&"vertical"===this.settings.axis?(this.scrollTop=this.container.scrollTop,this.container.scrollTop>0?this.scrollBy(0,-this.layout.height,!0):t=this.views.first().section.prev()):t=this.views.first().section.prev():(this.scrollLeft=this.container.scrollLeft,this.container.scrollLeft>0?this.scrollBy(-this.layout.delta,0,!0):t=this.views.first().section.prev()),t)){this.clear(),this.updateLayout();var i=!1;return"pre-paginated"===this.layout.name&&2===this.layout.divisor&&"object"!==Gi(t.prev())&&(i=!0),this.prepend(t,i).then(function(){var e;if("pre-paginated"===this.layout.name&&this.layout.divisor>1&&(e=t.prev()))return this.prepend(e)}.bind(this),(function(t){return t})).then(function(){this.isPaginated&&"horizontal"===this.settings.axis&&("rtl"===this.settings.direction?"default"===this.settings.rtlScrollType?this.scrollTo(0,0,!0):this.scrollTo(-1*this.container.scrollWidth+this.layout.delta,0,!0):this.scrollTo(this.container.scrollWidth-this.layout.delta,0,!0)),this.views.show()}.bind(this))}}},{key:"current",value:function(){var t=this.visible();return t.length?t[t.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.updateLayout(),this.isPaginated&&"horizontal"===this.settings.axis?this.location=this.paginatedLocation():this.location=this.scrolledLocation(),this.location}},{key:"scrolledLocation",value:function(){var t=this,e=this.visible(),i=this.container.getBoundingClientRect(),n=i.height<window.innerHeight?i.height:window.innerHeight,s=i.width<window.innerWidth?i.width:window.innerWidth,r="vertical"===this.settings.axis,o=(this.settings.direction,0);return this.settings.fullsize&&(o=r?window.scrollY:window.scrollX),e.map((function(e){var a,h,l,u,c=e.section,d=c.index,f=c.href,p=e.position(),v=e.width(),y=e.height();r?(h=(a=o+i.top-p.top+0)+n-0,u=t.layout.count(y,n).pages,l=n):(h=(a=o+i.left-p.left+0)+s-0,u=t.layout.count(v,s).pages,l=s);var m=Math.ceil(a/l),g=[],b=Math.ceil(h/l);if("rtl"===t.settings.direction&&!r){var w=m;m=u-b,b=u-w}g=[];for(var k=m;k<=b;k++){var x=k+1;g.push(x)}return{index:d,href:f,pages:g,totalPages:u,mapping:t.mapping.page(e.contents,e.section.cfiBase,a,h)}}))}},{key:"paginatedLocation",value:function(){var t=this,e=this.visible(),i=this.container.getBoundingClientRect(),n=0,s=0;return this.settings.fullsize&&(n=window.scrollX),e.map((function(e){var r,o,a,h,l=e.section,u=l.index,c=l.href,d=e.position(),f=e.width();"rtl"===t.settings.direction?(r=i.right-n,h=Math.min(Math.abs(r-d.left),t.layout.width)-s,o=(a=d.width-(d.right-r)-s)-h):(r=i.left+n,h=Math.min(d.right-r,t.layout.width)-s,a=(o=r-d.left+s)+h),s+=h;var p=t.mapping.page(e.contents,e.section.cfiBase,o,a),v=t.layout.count(f).pages,y=Math.floor(o/t.layout.pageWidth),m=[],g=Math.floor(a/t.layout.pageWidth);if(y<0&&(y=0,g+=1),"rtl"===t.settings.direction){var b=y;y=v-g,g=v-b}for(var w=y+1;w<=g;w++){var k=w;m.push(k)}return{index:u,href:c,pages:m,totalPages:v,mapping:p}}))}},{key:"isVisible",value:function(t,e,i,n){var s=t.position(),r=n||this.bounds();return"horizontal"===this.settings.axis&&s.right>r.left-e&&s.left<r.right+i||"vertical"===this.settings.axis&&s.bottom>r.top-e&&s.top<r.bottom+i}},{key:"visible",value:function(){for(var t,e=this.bounds(),i=this.views.displayed(),n=i.length,s=[],r=0;r<n;r++)t=i[r],!0===this.isVisible(t,0,0,e)&&s.push(t);return s}},{key:"scrollBy",value:function(t,e,i){var n="rtl"===this.settings.direction?-1:1;i&&(this.ignore=!0),this.settings.fullsize?window.scrollBy(t*n,e*n):(t&&(this.container.scrollLeft+=t*n),e&&(this.container.scrollTop+=e)),this.scrolled=!0}},{key:"scrollTo",value:function(t,e,i){i&&(this.ignore=!0),this.settings.fullsize?window.scrollTo(t,e):(this.container.scrollLeft=t,this.container.scrollTop=e),this.scrolled=!0}},{key:"onScroll",value:function(){var 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X},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,resources:this.loading.resources.promise,displayOptions:this.loading.displayOptions.promise},this.ready=Promise.all([this.loaded.manifest,this.loaded.spine,this.loaded.metadata,this.loaded.cover,this.loaded.navigation,this.loaded.resources,this.loaded.displayOptions]),this.isRendered=!1,this.request=this.settings.requestMethod||St,this.spine=new Rt,this.locations=new Oe(this.spine,this.load.bind(this)),this.navigation=void 0,this.pageList=void 0,this.url=void 0,this.path=void 0,this.archived=!1,this.archive=void 0,this.storage=void 0,this.resources=void 0,this.rendition=void 0,this.container=void 0,this.packaging=void 0,this.displayOptions=void 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