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viewer.js
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viewer.js
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var DEFAULT_URL=null,DEFAULT_SCALE="auto",DEFAULT_SCALE_DELTA=1.1,UNKNOWN_SCALE=0,CACHE_SIZE=20,CSS_UNITS=96/72,SCROLLBAR_PADDING=40,VERTICAL_PADDING=5,MIN_SCALE=0.25,MAX_SCALE=4,IMAGE_DIR="./images/",SETTINGS_MEMORY=20,ANNOT_MIN_SIZE=10,RenderingStates={INITIAL:0,RUNNING:1,PAUSED:2,FINISHED:3},FindStates={FIND_FOUND:0,FIND_NOTFOUND:1,FIND_WRAPPED:2,FIND_PENDING:3};PDFJS.workerSrc="pdf.js";var mozL10n=document.mozL10n||document.webL10n;
function getFileName(a){var b=a.indexOf("#"),c=a.indexOf("?"),b=Math.min(0<b?b:a.length,0<c?c:a.length);return a.substring(a.lastIndexOf("/",b)+1,b)}function scrollIntoView(a,b){for(var c=a.offsetParent,d=a.offsetTop;c.clientHeight==c.scrollHeight;)if(d+=c.offsetTop,c=c.offsetParent,!c)return;b&&(d+=b.top);c.scrollTop=d}
var Cache=function(a){var b=[];this.push=function(c){var d=b.indexOf(c);0<=d&&b.splice(d);b.push(c);b.length>a&&b.shift().destroy()}},ProgressBar=function(){function a(a,c){this.div=document.querySelector(a+" .progress");this.height=c.height||100;this.width=c.width||100;this.units=c.units||"%";this.div.style.height=this.height+this.units}a.prototype={updateBar:function(){if(this._indeterminate)this.div.classList.add("indeterminate");else{var a=this.width*this._percent/100;95<this._percent?this.div.classList.add("full"):
this.div.classList.remove("full");this.div.classList.remove("indeterminate");this.div.style.width=a+this.units}},get percent(){return this._percent},set percent(a){this._indeterminate=isNaN(a);this._percent=Math.min(Math.max(a,0),100);this.updateBar()}};return a}(),Settings=function(){function a(a){this.fingerprint=a;this.initializedPromise=new PDFJS.Promise;a=function(a){this.initialize(a||"{}");this.initializedPromise.resolve()}.bind(this);b&&a(localStorage.getItem("database"))}var b;try{b="localStorage"in
window&&null!==window.localStorage&&localStorage}catch(c){b=!1}a.prototype={initialize:function(a){a=JSON.parse(a);"files"in a||(a.files=[]);a.files.length>=SETTINGS_MEMORY&&a.files.shift();for(var b,c=0,f=a.files.length;c<f;c++)if(a.files[c].fingerprint==this.fingerprint){b=c;break}"number"!=typeof b&&(b=a.files.push({fingerprint:this.fingerprint})-1);this.file=a.files[b];this.database=a},set:function(a,c){if(this.initializedPromise.isResolved){this.file[a]=c;var j=JSON.stringify(this.database);
b&&localStorage.setItem("database",j)}},get:function(a,b){return!this.initializedPromise.isResolved?b:this.file[a]||b}};return a}(),cache=new Cache(CACHE_SIZE),currentPageNumber=1,PDFFindController={startedTextExtraction:!1,extractTextPromises:[],active:!1,pageContents:[],pageMatches:[],selected:{pageIdx:-1,matchIdx:-1},offset:{pageIdx:null,matchIdx:null},resumePageIdx:null,resumeCallback:null,state:null,dirtyMatch:!1,findTimeout:null,initialize:function(){var a=["find","findagain","findhighlightallchange",
"findcasesensitivitychange"];this.handleEvent=this.handleEvent.bind(this);for(var b=0;b<a.length;b++)window.addEventListener(a[b],this.handleEvent)},calcFindMatch:function(a){var b=this.pageContents[a],c=this.state.query,d=this.state.caseSensitive,e=c.length;if(0!==e){d||(b=b.toLowerCase(),c=c.toLowerCase());for(var d=[],j=-e;;){j=b.indexOf(c,j+e);if(-1===j)break;d.push(j)}this.pageMatches[a]=d;this.updatePage(a);this.resumePageIdx===a&&(a=this.resumeCallback,this.resumeCallback=this.resumePageIdx=
null,a())}},extractText:function(){function a(b){PDFView.pages[b].getTextContent().then(function(c){c=c.bidiTexts;for(var f="",h=0;h<c.length;h++)f+=c[h].str;d.pageContents.push(f);d.extractTextPromises[b].resolve(b);b+1<PDFView.pages.length&&a(b+1)})}if(!this.startedTextExtraction){this.startedTextExtraction=!0;this.pageContents=[];for(var b=0,c=PDFView.pdfDocument.numPages;b<c;b++)this.extractTextPromises.push(new PDFJS.Promise);var d=this;a(0);return this.extractTextPromise}},handleEvent:function(a){if(null===
this.state||"findagain"!==a.type)this.dirtyMatch=!0;this.state=a.detail;this.updateUIState(FindStates.FIND_PENDING);this.extractText();clearTimeout(this.findTimeout);"find"===a.type?this.findTimeout=setTimeout(this.nextMatch.bind(this),250):this.nextMatch()},updatePage:function(a){var b=PDFView.pages[a];this.selected.pageIdx===a&&b.scrollIntoView();b.textLayer&&b.textLayer.updateMatches()},nextMatch:function(){var a=this.state.findPrevious,b=PDFView.pages.length;this.active=!0;if(this.dirtyMatch){this.dirtyMatch=
!1;this.selected.pageIdx=this.selected.matchIdx=-1;this.offset.pageIdx=a?b-1:0;this.offset.matchIdx=null;this.hadMatch=!1;this.resumePageIdx=this.resumeCallback=null;this.pageMatches=[];for(var c=this,d=0;d<b;d++)this.updatePage(d),this.extractTextPromises[d].onData(function(a){setTimeout(function(){c.calcFindMatch(a)})})}if(""===this.state.query)this.updateUIState(FindStates.FIND_FOUND);else if(!this.resumeCallback){b=this.offset;if(null!==b.matchIdx){d=this.pageMatches[b.pageIdx].length;if(!a&&
b.matchIdx+1<d||a&&0<b.matchIdx){this.hadMatch=!0;b.matchIdx=a?b.matchIdx-1:b.matchIdx+1;this.updateMatch(!0);return}this.advanceOffsetPage(a)}this.nextPageMatch()}},nextPageMatch:function(){null!==this.resumePageIdx&&console.error("There can only be one pending page.");var a=function(a){var b=this.offset;a=a.length;var c=this.state.findPrevious;if(a)this.hadMatch=!0,b.matchIdx=c?a-1:0,this.updateMatch(!0);else{this.advanceOffsetPage(c);if(b.wrapped&&(b.matchIdx=null,!this.hadMatch)){this.updateMatch(!1);
return}this.nextPageMatch()}}.bind(this),b=this.offset.pageIdx,c=this.pageMatches;c[b]?a(c[b]):(this.resumeCallback=function(){a(c[b])},this.resumePageIdx=b)},advanceOffsetPage:function(a){var b=this.offset,c=this.extractTextPromises.length;b.pageIdx=a?b.pageIdx-1:b.pageIdx+1;b.matchIdx=null;if(b.pageIdx>=c||0>b.pageIdx)b.pageIdx=a?c-1:0,b.wrapped=!0},updateMatch:function(a){var b=FindStates.FIND_NOTFOUND,c=this.offset.wrapped;this.offset.wrapped=!1;a&&(a=this.selected.pageIdx,this.selected.pageIdx=
this.offset.pageIdx,this.selected.matchIdx=this.offset.matchIdx,b=c?FindStates.FIND_WRAPPED:FindStates.FIND_FOUND,-1!==a&&a!==this.selected.pageIdx&&this.updatePage(a));this.updateUIState(b,this.state.findPrevious);-1!==this.selected.pageIdx&&this.updatePage(this.selected.pageIdx,!0)},updateUIState:function(a,b){PDFView.supportsIntegratedFind?FirefoxCom.request("updateFindControlState",{result:a,findPrevious:b}):PDFFindBar.updateUIState(a,b)}},PDFFindBar={opened:!1,initialize:function(){this.bar=
document.getElementById("findbar");this.toggleButton=document.getElementById("viewFind");this.findField=document.getElementById("findInput");this.highlightAll=document.getElementById("findHighlightAll");this.caseSensitive=document.getElementById("findMatchCase");this.findMsg=document.getElementById("findMsg");this.findStatusIcon=document.getElementById("findStatusIcon");var a=this;this.toggleButton.addEventListener("click",function(){a.toggle()});this.findField.addEventListener("input",function(){a.dispatchEvent("")});
this.bar.addEventListener("keydown",function(b){switch(b.keyCode){case 13:b.target===a.findField&&a.dispatchEvent("again",b.shiftKey);break;case 27:a.close()}});document.getElementById("findPrevious").addEventListener("click",function(){a.dispatchEvent("again",!0)});document.getElementById("findNext").addEventListener("click",function(){a.dispatchEvent("again",!1)});this.highlightAll.addEventListener("click",function(){a.dispatchEvent("highlightallchange")});this.caseSensitive.addEventListener("click",
function(){a.dispatchEvent("casesensitivitychange")})},dispatchEvent:function(a,b){var c=document.createEvent("CustomEvent");c.initCustomEvent("find"+a,!0,!0,{query:this.findField.value,caseSensitive:this.caseSensitive.checked,highlightAll:this.highlightAll.checked,findPrevious:b});return window.dispatchEvent(c)},updateUIState:function(a,b){var c=!1,d="",e="";switch(a){case FindStates.FIND_PENDING:e="pending";break;case FindStates.FIND_NOTFOUND:d=mozL10n.get("find_not_found",null,"Phrase not found");
c=!0;break;case FindStates.FIND_WRAPPED:d=b?mozL10n.get("find_reached_top",null,"Reached top of document, continued from bottom"):mozL10n.get("find_reached_bottom",null,"Reached end of document, continued from top")}c?this.findField.classList.add("notFound"):this.findField.classList.remove("notFound");this.findField.setAttribute("data-status",e);this.findMsg.textContent=d},open:function(){this.opened||(this.opened=!0,this.toggleButton.classList.add("toggled"),this.bar.classList.remove("hidden"),this.findField.select(),
this.findField.focus())},close:function(){this.opened&&(this.opened=!1,this.toggleButton.classList.remove("toggled"),this.bar.classList.add("hidden"),PDFFindController.active=!1)},toggle:function(){this.opened?this.close():this.open()}},PDFView={pages:[],thumbnails:[],currentScale:UNKNOWN_SCALE,currentScaleValue:null,initialBookmark:document.location.hash.substring(1),startedTextExtraction:!1,pageText:[],container:null,thumbnailContainer:null,initialized:!1,fellback:!1,pdfDocument:null,sidebarOpen:!1,
pageViewScroll:null,thumbnailViewScroll:null,isFullscreen:!1,previousScale:null,pageRotation:0,mouseScrollTimeStamp:0,mouseScrollDelta:0,lastScroll:0,previousPageNumber:1,initialize:function(){var a=this,b=this.container=document.getElementById("viewerContainer");this.pageViewScroll={};this.watchScroll(b,this.pageViewScroll,updateViewarea);var c=this.thumbnailContainer=document.getElementById("thumbnailView");this.thumbnailViewScroll={};this.watchScroll(c,this.thumbnailViewScroll,this.renderHighestPriority.bind(this));
PDFFindBar.initialize();PDFFindController.initialize();this.initialized=!0;b.addEventListener("scroll",function(){a.lastScroll=Date.now()},!1)},watchScroll:function(a,b,c){b.down=!0;b.lastY=a.scrollTop;a.addEventListener("scroll",function(){var d=a.scrollTop,e=b.lastY;d>e?b.down=!0:d<e&&(b.down=!1);b.lastY=d;c()},!0)},setScale:function(a,b,c){if(a!=this.currentScale){for(var d=this.pages,e=0;e<d.length;e++)d[e].update(a*CSS_UNITS);!c&&this.currentScale!=a&&this.pages[this.page-1].scrollIntoView();
this.currentScale=a;c=document.createEvent("UIEvents");c.initUIEvent("scalechange",!1,!1,window,0);c.scale=a;c.resetAutoSettings=b;window.dispatchEvent(c)}},parseScale:function(a,b,c){if("custom"!=a){var d=parseFloat(a);this.currentScaleValue=a;if(d)this.setScale(d,!0,c);else{var e=this.container,j=this.pages[this.page-1];if(j){var f=(e.clientWidth-SCROLLBAR_PADDING)/j.width*j.scale/CSS_UNITS,e=(e.clientHeight-VERTICAL_PADDING)/j.height*j.scale/CSS_UNITS;switch(a){case "page-actual":d=1;break;case "page-width":d=
f;break;case "page-height":d=e;break;case "page-fit":d=Math.min(f,e);break;case "auto":d=Math.min(1,f)}this.setScale(d,b,c);selectScaleOption(a)}}}},zoomIn:function(){var a=(this.currentScale*DEFAULT_SCALE_DELTA).toFixed(2),a=Math.min(MAX_SCALE,a);this.parseScale(a,!0)},zoomOut:function(){var a=(this.currentScale/DEFAULT_SCALE_DELTA).toFixed(2),a=Math.max(MIN_SCALE,a);this.parseScale(a,!0)},set page(a){var b=this.pages;document.getElementById("pageNumber");var c=document.createEvent("UIEvents");c.initUIEvent("pagechange",
!1,!1,window,0);0<a&&a<=b.length?(b[a-1].updateStats(),this.previousPageNumber=currentPageNumber,currentPageNumber=a,c.pageNumber=a,window.dispatchEvent(c),updateViewarea.inProgress||this.loading&&1==a||b[a-1].scrollIntoView()):(this.previousPageNumber=a,c.pageNumber=this.page,window.dispatchEvent(c))},get page(){return currentPageNumber},get supportsPrinting(){var a="mozPrintCallback"in document.createElement("canvas");Object.defineProperty(this,"supportsPrinting",{value:a,enumerable:!0,configurable:!0,
writable:!1});return a},get supportsFullscreen(){var a=document.documentElement,a=a.requestFullscreen||a.mozRequestFullScreen||a.webkitRequestFullScreen;window.frameElement&&(a=!1);Object.defineProperty(this,"supportsFullScreen",{value:a,enumerable:!0,configurable:!0,writable:!1});return a},get supportsIntegratedFind(){Object.defineProperty(this,"supportsIntegratedFind",{value:!1,enumerable:!0,configurable:!0,writable:!1});return!1},get supportsDocumentFonts(){Object.defineProperty(this,"supportsDocumentFonts",
{value:!0,enumerable:!0,configurable:!0,writable:!1});return!0},get isHorizontalScrollbarEnabled(){var a=document.getElementById("viewerContainer");return a.scrollWidth>a.clientWidth},initPassiveLoading:function(){PDFView.loadingBar||(PDFView.loadingBar=new ProgressBar("#loadingBar",{}));window.addEventListener("message",function(a){var b=a.data;if("object"===typeof b&&"pdfjsLoadAction"in b)switch(b.pdfjsLoadAction){case "progress":PDFView.progress(b.loaded/b.total);break;case "complete":if(!b.data){PDFView.error(mozL10n.get("loading_error",
null,"An error occurred while loading the PDF."),a);break}PDFView.open(b.data,0)}});FirefoxCom.requestSync("initPassiveLoading",null)},setTitleUsingUrl:function(a){this.url=a;try{this.setTitle(decodeURIComponent(getFileName(a))||a)}catch(b){this.setTitle(a)}},setTitle:function(a){document.title=a},open:function(a,b,c){var d={password:c};"string"===typeof a?(this.setTitleUsingUrl(a),d.url=a):a&&"byteLength"in a&&(d.data=a);PDFView.loadingBar||(PDFView.loadingBar=new ProgressBar("#loadingBar",{}));
this.pdfDocument=null;var e=this;e.loading=!0;PDFJS.getDocument(d).then(function(a){e.load(a,b);e.loading=!1},function(d,f){if(f&&"PasswordException"===f.name&&"needpassword"===f.code){var h=mozL10n.get("request_password",null,"PDF is protected by a password:");if((c=prompt(h))&&0<c.length)return PDFView.open(a,b,c)}h=mozL10n.get("loading_error",null,"An error occurred while loading the PDF.");f&&"InvalidPDFException"===f.name&&(h=mozL10n.get("invalid_file_error",null,"Invalid or corrupted PDF file."));
document.getElementById("loading").textContent=mozL10n.get("loading_error_indicator",null,"Error");e.error(h,{message:d});e.loading=!1},function(a){e.progress(a.loaded/a.total)})},download:function(){var a=this.url.split("#")[0];window.open(a+"#pdfjs.action=download","_parent")},fallback:function(){},navigateTo:function(a){"string"===typeof a&&(a=this.destinations[a]);if(a instanceof Array){var b=a[0],b=b instanceof Object?this.pagesRefMap[b.num+" "+b.gen+" R"]:b+1;b>this.pages.length&&(b=this.pages.length);
b&&(this.page=b,this.pages[b-1].scrollIntoView(a))}},getDestinationHash:function(a){if("string"===typeof a)return PDFView.getAnchorUrl("#"+escape(a));if(a instanceof Array){var b=a[0];if(b=b instanceof Object?this.pagesRefMap[b.num+" "+b.gen+" R"]:b+1){var b=PDFView.getAnchorUrl("#page="+b),c=a[1];if("object"===typeof c&&("name"in c&&"XYZ"==c.name)&&(b+="&zoom="+100*(a[4]||this.currentScale),a[2]||a[3]))b+=","+(a[2]||0)+","+(a[3]||0);return b}}return""},getAnchorUrl:function(a){return a},getOutputScale:function(){var a=
"devicePixelRatio"in window?window.devicePixelRatio:1;return{sx:a,sy:a,scaled:1!=a}},error:function(a,b){var c=mozL10n.get("error_version_info",{version:PDFJS.version||"?",build:PDFJS.build||"?"},"PDF.js v{{version}} (build: {{build}})")+"\n";b&&(c+=mozL10n.get("error_message",{message:b.message},"Message: {{message}}"),b.stack?c+="\n"+mozL10n.get("error_stack",{stack:b.stack},"Stack: {{stack}}"):(b.filename&&(c+="\n"+mozL10n.get("error_file",{file:b.filename},"File: {{file}}")),b.lineNumber&&(c+=
"\n"+mozL10n.get("error_line",{line:b.lineNumber},"Line: {{line}}"))));document.getElementById("loadingBox").setAttribute("hidden","true");var d=document.getElementById("errorWrapper");d.removeAttribute("hidden");document.getElementById("errorMessage").textContent=a;document.getElementById("errorClose").onclick=function(){d.setAttribute("hidden","true")};var e=document.getElementById("errorMoreInfo"),j=document.getElementById("errorShowMore"),f=document.getElementById("errorShowLess");j.onclick=function(){e.removeAttribute("hidden");
j.setAttribute("hidden","true");f.removeAttribute("hidden")};f.onclick=function(){e.setAttribute("hidden","true");j.removeAttribute("hidden");f.setAttribute("hidden","true")};j.removeAttribute("hidden");f.setAttribute("hidden","true");e.value=c;e.rows=c.split("\n").length-1},progress:function(a){a=Math.round(100*a);PDFView.loadingBar.percent=a},load:function(a,b){function c(a,b){a.onAfterDraw=function(){b.setImage(a.canvas)}}this.pdfDocument=a;document.getElementById("errorWrapper").setAttribute("hidden",
"true");document.getElementById("loadingBox").setAttribute("hidden","true");document.getElementById("loading").textContent="";var d=document.getElementById("thumbnailView");for(d.parentNode.scrollTop=0;d.hasChildNodes();)d.removeChild(d.lastChild);"_loadingInterval"in d&&clearInterval(d._loadingInterval);for(var e=document.getElementById("viewer");e.hasChildNodes();)e.removeChild(e.lastChild);var j=a.numPages,f=a.fingerprint;document.getElementById("numPages").textContent=mozL10n.get("page_of",{pageCount:j},
"of {{pageCount}}");document.getElementById("pageNumber").max=j;PDFView.documentFingerprint=f;var h=PDFView.store=new Settings(f),f=h.initializedPromise;this.pageRotation=0;var g=this.pages=[];this.pageText=[];this.startedTextExtraction=!1;for(var m={},k=this.thumbnails=[],l=[],n=1;n<=j;n++)l.push(a.getPage(n));var p=this,l=PDFJS.Promise.all(l);l.then(function(a){for(var f=1;f<=j;f++){var h=a[f-1],l=new PageView(e,h,f,b,h.stats,p.navigateTo.bind(p)),n=new ThumbnailView(d,h,f);c(l,n);g.push(l);k.push(n);
h=h.ref;m[h.num+" "+h.gen+" R"]=f}p.pagesRefMap=m});n=a.getDestinations();n.then(function(a){p.destinations=a});PDFJS.Promise.all([l,n,f]).then(function(){a.getOutline().then(function(a){p.outline=new DocumentOutlineView(a)});var c=null;if(h.get("exists",!1))var c=h.get("page","1"),d=h.get("zoom",PDFView.currentScale),e=h.get("scrollLeft","0"),f=h.get("scrollTop","0"),c="page="+c+"&zoom="+d+","+e+","+f;p.setInitialView(c,b)});a.getMetadata().then(function(b){var c=b.info;b=b.metadata;p.documentInfo=
c;p.metadata=b;console.log("PDF "+a.fingerprint+" ["+c.PDFFormatVersion+" "+(c.Producer||"-")+" / "+(c.Creator||"-")+"]"+(PDFJS.version?" (PDF.js: "+PDFJS.version+")":""));var d;b&&b.has("dc:title")&&(d=b.get("dc:title"));!d&&(c&&c.Title)&&(d=c.Title);d&&p.setTitle(d+" - "+document.title)})},setInitialView:function(a,b){this.currentScale=0;this.currentScaleValue=null;this.initialBookmark?(this.setHash(this.initialBookmark),this.initialBookmark=null):a?this.setHash(a):b&&(this.parseScale(b,!0),this.page=
1);PDFView.currentScale===UNKNOWN_SCALE&&this.parseScale(DEFAULT_SCALE,!0)},renderHighestPriority:function(){var a=this.getVisiblePages();(a=this.getHighestPriority(a,this.pages,this.pageViewScroll.down))?this.renderView(a,"page"):this.sidebarOpen&&(a=this.getVisibleThumbs(),(a=this.getHighestPriority(a,this.thumbnails,this.thumbnailViewScroll.down))&&this.renderView(a,"thumbnail"))},getHighestPriority:function(a,b,c){var d=a.views,e=d.length;if(0===e)return!1;for(var j=0;j<e;++j){var f=d[j].view;
if(!this.isViewFinished(f))return f}a=c?a.last.id:a.first.id-2;return b[a]&&!this.isViewFinished(b[a])?b[a]:!1},isViewFinished:function(a){return a.renderingState===RenderingStates.FINISHED},renderView:function(a,b){switch(a.renderingState){case RenderingStates.FINISHED:return!1;case RenderingStates.PAUSED:PDFView.highestPriorityPage=b+a.id;a.resume();break;case RenderingStates.RUNNING:PDFView.highestPriorityPage=b+a.id;break;case RenderingStates.INITIAL:PDFView.highestPriorityPage=b+a.id,a.draw(this.renderHighestPriority.bind(this))}return!0},
setHash:function(a){if(a)if(0<=a.indexOf("=")){var b=PDFView.parseQueryString(a);if("nameddest"in b)PDFView.navigateTo(b.nameddest);else if("page"in b)if(a=b.page|0||1,"zoom"in b){var b=b.zoom.split(","),c=b[0],d=parseFloat(c);d&&(c=d/100);this.pages[a-1].scrollIntoView([null,{name:"XYZ"},b[1]|0,b[2]|0,c])}else this.page=a}else/^\d+$/.test(a)?this.page=a:PDFView.navigateTo(unescape(a))},switchSidebarView:function(a){var b=document.getElementById("thumbnailView"),c=document.getElementById("outlineView"),
d=document.getElementById("viewThumbnail"),e=document.getElementById("viewOutline");switch(a){case "thumbs":a=b.classList.contains("hidden");d.classList.add("toggled");e.classList.remove("toggled");b.classList.remove("hidden");c.classList.add("hidden");PDFView.renderHighestPriority();a&&scrollIntoView(document.getElementById("thumbnailContainer"+this.page));break;case "outline":d.classList.remove("toggled"),e.classList.add("toggled"),b.classList.add("hidden"),c.classList.remove("hidden"),e.getAttribute("disabled")}},
getVisiblePages:function(){return this.getVisibleElements(this.container,this.pages,!0)},getVisibleThumbs:function(){return this.getVisibleElements(this.thumbnailContainer,this.thumbnails)},getVisibleElements:function(a,b,c){for(var d=0,e,j=a.scrollTop,f=1,h=b.length;f<=h;++f){e=b[f-1];d=e.el.offsetTop;if(d+e.el.clientHeight>j)break;d+=e.el.clientHeight}var g=[];if(this.isFullscreen)return c=this.pages[this.page-1],g.push({id:c.id,view:c}),{first:c,last:c,views:g};a=j+a.clientHeight;for(var m,k,l;f<=
h&&d<a;++f)e=b[f-1],l=e.el.clientHeight,d=e.el.offsetTop,m=d+l,k=Math.max(0,j-d)+Math.max(0,m-a),k=Math.floor(100*(l-k)/l),g.push({id:e.id,y:d,view:e,percent:k}),d=m;b=g[0];d=g[g.length-1];c&&g.sort(function(a,b){var c=a.percent-b.percent;return 0.0010<Math.abs(c)?-c:a.id-b.id});return{first:b,last:d,views:g}},parseQueryString:function(a){a=a.split("&");for(var b={},c=0;c<a.length;++c){var d=a[c].split("="),e=1<d.length?d[1]:null;b[unescape(d[0])]=unescape(e)}return b},beforePrint:function(){if(this.supportsPrinting){document.querySelector("body").setAttribute("data-mozPrintCallback",
!0);for(var a=0,b=this.pages.length;a<b;++a)this.pages[a].beforePrint()}else a=mozL10n.get("printing_not_supported",null,"Warning: Printing is not fully supported by this browser."),this.error(a)},afterPrint:function(){for(var a=document.getElementById("printContainer");a.hasChildNodes();)a.removeChild(a.lastChild)},fullscreen:function(){if(document.fullscreenElement||document.mozFullScreen||document.webkitIsFullScreen)return!1;var a=document.getElementById("viewerContainer");if(document.documentElement.requestFullscreen)a.requestFullscreen();
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