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super() hasn't been called");return e}(e):t}function c(e){return(c=Object.setPrototypeOf?Object.getPrototypeOf:function(r){return r.__proto__||Object.getPrototypeOf(r)})(e)}v.PDFSinglePageViewer=function(e){w(r,e);var t=u(r);function r(n){var a;return function D(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,r),(a=t.call(this,n)).eventBus._on("pagesinit",function(s){a._ensurePageViewVisible()}),a}return function H(e,t,r){return t&&z(e.prototype,t),r&&z(e,r),e}(r,[{key:"_resetView",value:function(){V(c(r.prototype),"_resetView",this).call(this),this._previousPageNumber=1,this._shadowViewer=document.createDocumentFragment(),this._updateScrollDown=null}},{key:"_ensurePageViewVisible",value:function(){var a=this._pages[this._currentPageNumber-1],s=this._pages[this._previousPageNumber-1],g=this.viewer.childNodes;switch(g.length){case 0:this.viewer.appendChild(a.div);break;case 1:if(g[0]!==s.div)throw new Error("_ensurePageViewVisible: Unexpected previously visible page.");if(a===s)break;this._shadowViewer.appendChild(s.div),this.viewer.appendChild(a.div),this.container.scrollTop=0;break;default:throw new Error("_ensurePageViewVisible: Only one page should be visible at a time.")}this._previousPageNumber=this._currentPageNumber}},{key:"_scrollUpdate",value:function(){this._updateScrollDown&&this._updateScrollDown(),V(c(r.prototype),"_scrollUpdate",this).call(this)}},{key:"_scrollIntoView",value:function(a){var s=this,g=a.pageDiv,_=a.pageSpot,k=void 0===_?null:_,l=a.pageNumber,m=void 0===l?null:l;m&&this._setCurrentPageNumber(m);var L=this._currentPageNumber>=this._previousPageNumber;this._ensurePageViewVisible(),this.update(),V(c(r.prototype),"_scrollIntoView",this).call(this,{pageDiv:g,pageSpot:k,pageNumber:m}),this._updateScrollDown=function(){s.scroll.down=L,s._updateScrollDown=null}}},{key:"_getVisiblePages",value:function(){return this._getCurrentVisiblePage()}},{key:"_updateHelper",value:function(a){}},{key:"_updateScrollMode",value:function(){}},{key:"_updateSpreadMode",value:function(){}},{key:"_viewerElement",get:function(){return(0,M.shadow)(this,"_viewerElement",this._shadowViewer)}},{key:"_isScrollModeHorizontal",get:function(){return(0,M.shadow)(this,"_isScrollModeHorizontal",!1)}}]),r}(y.BaseViewer)},function(q,v,O){"use strict";Object.defineProperty(v,"__esModule",{value:!0}),v.BaseViewer=void 0;var y=O(3),M=O(17),G=O(1),D=O(2),z=O(16),H=O(7),V=O(8);function w(c,i){for(var e=0;e<i.length;e++){var t=i[e];t.enumerable=t.enumerable||!1,t.configurable=!0,"value"in t&&(t.writable=!0),Object.defineProperty(c,t.key,t)}}function p(c){var i=[];this.push=function(e){var t=i.indexOf(e);t>=0&&i.splice(t,1),i.push(e),i.length>c&&i.shift().destroy()},this.resize=function(e,t){if(c=e,t){for(var r=new Set,n=0,a=t.length;n<a;++n)r.add(t[n].id);(0,y.moveToEndOfArray)(i,function(s){return r.has(s.id)})}for(;i.length>c;)i.shift().destroy()}}function h(c,i){return i===c||Math.abs(i-c)<1e-15}var b=function(){function c(i){var e=this;if(function B(c,i){if(!(c instanceof i))throw new TypeError("Cannot call a class as a function")}(this,c),this.constructor===c)throw new Error("Cannot initialize BaseViewer.");this._name=this.constructor.name,this.container=i.container,this.viewer=i.viewer||i.container.firstElementChild,this.eventBus=i.eventBus,this.linkService=i.linkService||new H.SimpleLinkService,this.downloadManager=i.downloadManager||null,this.findController=i.findController||null,this.removePageBorders=i.removePageBorders||!1,this.textLayerMode=Number.isInteger(i.textLayerMode)?i.textLayerMode:y.TextLayerMode.ENABLE,this.imageResourcesPath=i.imageResourcesPath||"",this.renderInteractiveForms=i.renderInteractiveForms||!1,this.enablePrintAutoRotate=i.enablePrintAutoRotate||!1,this.renderer=i.renderer||y.RendererType.CANVAS,this.enableWebGL=i.enableWebGL||!1,this.useOnlyCssZoom=i.useOnlyCssZoom||!1,this.maxCanvasPixels=i.maxCanvasPixels,this.l10n=i.l10n||y.NullL10n,this.defaultRenderingQueue=!i.renderingQueue,this.defaultRenderingQueue?(this.renderingQueue=new M.PDFRenderingQueue,this.renderingQueue.setViewer(this)):this.renderingQueue=i.renderingQueue,this.scroll=(0,y.watchScroll)(this.container,this._scrollUpdate.bind(this)),this.presentationModeState=y.PresentationModeState.UNKNOWN,this._onBeforeDraw=this._onAfterDraw=null,this._resetView(),this.removePageBorders&&this.viewer.classList.add("removePageBorders"),Promise.resolve().then(function(){e.eventBus.dispatch("baseviewerinit",{source:e})})}
1return function o(c,i,e){return i&&w(c.prototype,i),e&&w(c,e),c}(c,[{key:"getPageView",value:function(e){return this._pages[e]}},{key:"_setCurrentPageNumber",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1];return this._currentPageNumber===e?(t&&this._resetCurrentPageView(),!0):0<e&&e<=this.pagesCount&&(this._currentPageNumber=e,this.eventBus.dispatch("pagechanging",{source:this,pageNumber:e,pageLabel:this._pageLabels&&this._pageLabels[e-1]}),t&&this._resetCurrentPageView(),!0)}},{key:"_onePageRenderedOrForceFetch",value:function(){return this.container.offsetParent&&0!==this._getVisiblePages().views.length?this._onePageRenderedCapability.promise:Promise.resolve()}},{key:"setDocument",value:function(e){var t=this;if(this.pdfDocument&&(this._cancelRendering(),this._resetView(),this.findController&&this.findController.setDocument(null)),this.pdfDocument=e,e){var r=e.numPages,n=e.getPage(1);this._pagesCapability.promise.then(function(){t.eventBus.dispatch("pagesloaded",{source:t,pagesCount:r})}),this._onBeforeDraw=function(a){var s=t._pages[a.pageNumber-1];!s||t._buffer.push(s)},this.eventBus._on("pagerender",this._onBeforeDraw),this._onAfterDraw=function(a){a.cssTransform||t._onePageRenderedCapability.settled||(t._onePageRenderedCapability.resolve(),t.eventBus._off("pagerendered",t._onAfterDraw),t._onAfterDraw=null)},this.eventBus._on("pagerendered",this._onAfterDraw),n.then(function(a){t._firstPageCapability.resolve(a);for(var s=t.currentScale,g=a.getViewport({scale:s*y.CSS_UNITS}),_=t.textLayerMode!==y.TextLayerMode.DISABLE?t:null,k=1;k<=r;++k){var l=new z.PDFPageView({container:t._viewerElement,eventBus:t.eventBus,id:k,scale:s,defaultViewport:g.clone(),renderingQueue:t.renderingQueue,textLayerFactory:_,textLayerMode:t.textLayerMode,annotationLayerFactory:t,imageResourcesPath:t.imageResourcesPath,renderInteractiveForms:t.renderInteractiveForms,renderer:t.renderer,enableWebGL:t.enableWebGL,useOnlyCssZoom:t.useOnlyCssZoom,maxCanvasPixels:t.maxCanvasPixels,l10n:t.l10n});t._pages.push(l)}var m=t._pages[0];m&&(m.setPdfPage(a),t.linkService.cachePageRef(1,a.ref)),t._spreadMode!==y.SpreadMode.NONE&&t._updateSpreadMode(),t._onePageRenderedOrForceFetch().then(function(){if(t.findController&&t.findController.setDocument(e),e.loadingParams.disableAutoFetch||r>7500)t._pagesCapability.resolve();else{var L=r-1;if(L<=0)t._pagesCapability.resolve();else for(var P=function(R){e.getPage(R).then(function(f){var Z=t._pages[R-1];Z.pdfPage||Z.setPdfPage(f),t.linkService.cachePageRef(R,f.ref),0==--L&&t._pagesCapability.resolve()},function(f){console.error("Unable to get page ".concat(R," to initialize viewer"),f),0==--L&&t._pagesCapability.resolve()})},N=2;N<=r;++N)P(N)}}),t.eventBus.dispatch("pagesinit",{source:t}),t.defaultRenderingQueue&&t.update()}).catch(function(a){console.error("Unable to initialize viewer",a)})}}},{key:"setPageLabels",value:function(e){if(this.pdfDocument){e?Array.isArray(e)&&this.pdfDocument.numPages===e.length?this._pageLabels=e:(this._pageLabels=null,console.error("".concat(this._name,".setPageLabels: Invalid page labels."))):this._pageLabels=null;for(var t=0,r=this._pages.length;t<r;t++)this._pages[t].setPageLabel(this._pageLabels&&this._pageLabels[t])}}},{key:"_resetView",value:function(){this._pages=[],this._currentPageNumber=1,this._currentScale=y.UNKNOWN_SCALE,this._currentScaleValue=null,this._pageLabels=null,this._buffer=new p(10),this._location=null,this._pagesRotation=0,this._pagesRequests=new WeakMap,this._firstPageCapability=(0,D.createPromiseCapability)(),this._onePageRenderedCapability=(0,D.createPromiseCapability)(),this._pagesCapability=(0,D.createPromiseCapability)(),this._scrollMode=y.ScrollMode.VERTICAL,this._spreadMode=y.SpreadMode.NONE,this._onBeforeDraw&&(this.eventBus._off("pagerender",this._onBeforeDraw),this._onBeforeDraw=null),this._onAfterDraw&&(this.eventBus._off("pagerendered",this._onAfterDraw),this._onAfterDraw=null),this.viewer.textContent="",this._updateScrollMode()}},{key:"_scrollUpdate",value:function(){0!==this.pagesCount&&this.update()}},{key:"_scrollIntoView",value:function(e){var r=e.pageSpot;(0,y.scrollIntoView)(e.pageDiv,void 0===r?null:r)}},{key:"_setScaleUpdatePages",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]&&arguments[2],n=arguments.length>3&&void 0!==arguments[3]&&arguments[3];if(this._currentScaleValue=t.toString(),h(this._currentScale,e))n&&this.eventBus.dispatch("scalechanging",{source:this,scale:e,presetValue:t});else{for(var a=0,s=this._pages.length;a<s;a++)this._pages[a].update(e);if(this._currentScale=e,!r){var _,g=this._currentPageNumber;this._location&&!(this.isInPresentationMode||this.isChangingPresentationMode)&&(g=this._location.pageNumber,_=[null,{name:"XYZ"},this._location.left,this._location.top,null]),this.scrollPageIntoView({pageNumber:g,destArray:_,allowNegativeOffset:!0})}this.eventBus.dispatch("scalechanging",{source:this,scale:e,presetValue:n?t:void 0}),this.defaultRenderingQueue&&this.update()}}},{key:"_setScale",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],r=parseFloat(e);
1if(r>0)this._setScaleUpdatePages(r,e,t,!1);else{var n=this._pages[this._currentPageNumber-1];if(!n)return;var a=this.isInPresentationMode||this.removePageBorders,s=a?0:y.SCROLLBAR_PADDING,g=a?0:y.VERTICAL_PADDING;if(!a&&this._isScrollModeHorizontal){var _=[g,s];s=_[0],g=_[1]}var k=(this.container.clientWidth-s)/n.width*n.scale,l=(this.container.clientHeight-g)/n.height*n.scale;switch(e){case"page-actual":r=1;break;case"page-width":r=k;break;case"page-height":r=l;break;case"page-fit":r=Math.min(k,l);break;case"auto":var m=(0,y.isPortraitOrientation)(n)?k:Math.min(l,k);r=Math.min(y.MAX_AUTO_SCALE,m);break;default:return void console.error("".concat(this._name,'._setScale: "').concat(e,'" is an unknown zoom value.'))}this._setScaleUpdatePages(r,e,t,!0)}}},{key:"_resetCurrentPageView",value:function(){this.isInPresentationMode&&this._setScale(this._currentScaleValue,!0),this._scrollIntoView({pageDiv:this._pages[this._currentPageNumber-1].div})}},{key:"scrollPageIntoView",value:function(e){var t=e.pageNumber,r=e.destArray,n=void 0===r?null:r,a=e.allowNegativeOffset,s=void 0!==a&&a,g=e.ignoreDestinationZoom,_=void 0!==g&&g;if(this.pdfDocument){var k=Number.isInteger(t)&&this._pages[t-1];if(!k)return void console.error("".concat(this._name,".scrollPageIntoView: ")+'"'.concat(t,'" is not a valid pageNumber parameter.'));if(this.isInPresentationMode||!n)return void this._setCurrentPageNumber(t,!0);var j,l=0,m=0,L=0,P=0,R=k.rotation%180!=0,f=(R?k.height:k.width)/k.scale/y.CSS_UNITS,Z=(R?k.width:k.height)/k.scale/y.CSS_UNITS,E=0;switch(n[1].name){case"XYZ":E=n[4],l=null!==(l=n[2])?l:0,m=null!==(m=n[3])?m:Z;break;case"Fit":case"FitB":E="page-fit";break;case"FitH":case"FitBH":E="page-width",null===(m=n[2])&&this._location&&(l=this._location.left,m=this._location.top);break;case"FitV":case"FitBV":l=n[2],L=f,P=Z,E="page-height";break;case"FitR":L=n[4]-(l=n[2]),j=(this.container.clientHeight-(this.removePageBorders?0:y.VERTICAL_PADDING))/(P=n[5]-(m=n[3]))/y.CSS_UNITS,E=Math.min(Math.abs((this.container.clientWidth-(this.removePageBorders?0:y.SCROLLBAR_PADDING))/L/y.CSS_UNITS),Math.abs(j));break;default:return void console.error("".concat(this._name,".scrollPageIntoView: ")+'"'.concat(n[1].name,'" is not a valid destination type.'))}if(_||(E&&E!==this._currentScale?this.currentScaleValue=E:this._currentScale===y.UNKNOWN_SCALE&&(this.currentScaleValue=y.DEFAULT_SCALE_VALUE)),"page-fit"===E&&!n[4])return void this._scrollIntoView({pageDiv:k.div,pageNumber:t});var U=[k.viewport.convertToViewportPoint(l,m),k.viewport.convertToViewportPoint(l+L,m+P)],W=Math.min(U[0][0],U[1][0]),$=Math.min(U[0][1],U[1][1]);s||(W=Math.max(W,0),$=Math.max($,0)),this._scrollIntoView({pageDiv:k.div,pageSpot:{left:W,top:$},pageNumber:t})}}},{key:"_updateLocation",value:function(e){var t=this._currentScale,r=this._currentScaleValue,n=parseFloat(r)===t?Math.round(1e4*t)/100:r,a=e.id,s="#page="+a;s+="&zoom="+n;var _=this.container,k=this._pages[a-1].getPagePoint(_.scrollLeft-e.x,_.scrollTop-e.y),l=Math.round(k[0]),m=Math.round(k[1]);this._location={pageNumber:a,scale:n,top:m,left:l,rotation:this._pagesRotation,pdfOpenParams:s+=","+l+","+m}}},{key:"_updateHelper",value:function(e){throw new Error("Not implemented: _updateHelper")}},{key:"update",value:function(){var e=this._getVisiblePages(),t=e.views,r=t.length;if(0!==r){var n=Math.max(10,2*r+1);this._buffer.resize(n,t),this.renderingQueue.renderHighestPriority(e),this._updateHelper(t),this._updateLocation(e.first),this.eventBus.dispatch("updateviewarea",{source:this,location:this._location})}}},{key:"containsElement",value:function(e){return this.container.contains(e)}},{key:"focus",value:function(){this.container.focus()}},{key:"_getCurrentVisiblePage",value:function(){if(!this.pagesCount)return{views:[]};var e=this._pages[this._currentPageNumber-1],t=e.div,r={id:e.id,x:t.offsetLeft+t.clientLeft,y:t.offsetTop+t.clientTop,view:e};return{first:r,last:r,views:[r]}}},{key:"_getVisiblePages",value:function(){return(0,y.getVisibleElements)(this.container,this._pages,!0,this._isScrollModeHorizontal)}},{key:"isPageVisible",value:function(e){return!!this.pdfDocument&&(e<1||e>this.pagesCount?(console.error("".concat(this._name,'.isPageVisible: "').concat(e,'" is out of bounds.')),!1):this._getVisiblePages().views.some(function(t){return t.id===e}))}},{key:"cleanup",value:function(){for(var e=0,t=this._pages.length;e<t;e++)this._pages[e]&&this._pages[e].renderingState!==M.RenderingStates.FINISHED&&this._pages[e].reset()}},{key:"_cancelRendering",value:function(){for(var e=0,t=this._pages.length;e<t;e++)this._pages[e]&&this._pages[e].cancelRendering()}},{key:"_ensurePdfPageLoaded",value:function(e){var t=this;if(e.pdfPage)return Promise.resolve(e.pdfPage);if(this._pagesRequests.has(e))return this._pagesRequests.get(e);var r=this.pdfDocument.getPage(e.id).then(function(n){return e.pdfPage||e.setPdfPage(n),t._pagesRequests.delete(e),n}).catch(function(n){console.error("Unable to get page for page view",n),t._pagesRequests.delete(e)});return this._pagesRequests.set(e,r),r}},{key:"forceRendering",value:function(e){var t=this,r=e||this._getVisiblePages(),a=this.renderingQueue.getHighestPriority(r,this._pages,this._isScrollModeHorizontal?this.scroll.right:this.scroll.down);return!!a&&(this._ensurePdfPageLoaded(a).then(function(){t.renderingQueue.renderView(a)}),!0)}},{key:"createTextLayerBuilder",value:function(e,t,r){return new V.TextLayerBuilder({textLayerDiv
1:e,eventBus:arguments.length>4?arguments[4]:void 0,pageIndex:t,viewport:r,findController:this.isInPresentationMode?null:this.findController,enhanceTextSelection:!this.isInPresentationMode&&arguments.length>3&&void 0!==arguments[3]&&arguments[3]})}},{key:"createAnnotationLayerBuilder",value:function(e,t){return new G.AnnotationLayerBuilder({pageDiv:e,pdfPage:t,imageResourcesPath:arguments.length>2&&void 0!==arguments[2]?arguments[2]:"",renderInteractiveForms:arguments.length>3&&void 0!==arguments[3]&&arguments[3],linkService:this.linkService,downloadManager:this.downloadManager,l10n:arguments.length>4&&void 0!==arguments[4]?arguments[4]:y.NullL10n})}},{key:"getPagesOverview",value:function(){var e=this._pages.map(function(r){var n=r.pdfPage.getViewport({scale:1});return{width:n.width,height:n.height,rotation:n.rotation}});if(!this.enablePrintAutoRotate)return e;var t=(0,y.isPortraitOrientation)(e[0]);return e.map(function(r){return t===(0,y.isPortraitOrientation)(r)?r:{width:r.height,height:r.width,rotation:(r.rotation+90)%360}})}},{key:"_updateScrollMode",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=this._scrollMode,r=this.viewer;r.classList.toggle("scrollHorizontal",t===y.ScrollMode.HORIZONTAL),r.classList.toggle("scrollWrapped",t===y.ScrollMode.WRAPPED),this.pdfDocument&&e&&(this._currentScaleValue&&isNaN(this._currentScaleValue)&&this._setScale(this._currentScaleValue,!0),this._setCurrentPageNumber(e,!0),this.update())}},{key:"_updateSpreadMode",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null;if(this.pdfDocument){var t=this.viewer,r=this._pages;if(t.textContent="",this._spreadMode===y.SpreadMode.NONE)for(var n=0,a=r.length;n<a;++n)t.appendChild(r[n].div);else for(var 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