diff --git a/BookReader/BookReader.js b/BookReader/BookReader.js
index 3d3528249..e6b9178ec 100644
--- a/BookReader/BookReader.js
+++ b/BookReader/BookReader.js
@@ -1,3 +1,3 @@
 /*! For license information please see BookReader.js.LICENSE.txt */
-(function(){var __webpack_modules__={2292:function(e,t,n){"use strict";n(5666),n(1539),n(9714),n(5827),n(2222),n(1249),n(6833),n(8674),n(7327),n(7941),n(4916),n(6992),n(8783),n(3948),n(1637),n(4765),n(7042),n(4747),n(9826),n(6699),n(2023),n(1058),n(3123),n(5306),n(9600),n(2526),n(1817),n(2165),n(1038),n(8309),n(6891),n(6177),n(5557);var r=n(5685);function i(e,t,n,r,i,o){var a,s=(a=e.prototype[t],function(){return a.apply(o(this),arguments)});Object.defineProperty(r.prototype,i,{get:function(){return s},set:function(r){e.prototype[t]=function(){var t=this instanceof e?n(this):this;return r.apply(t,arguments)},s=r}})}n(6227);var o={fragmentChange:"fragmentChange",pageChanged:"pageChanged",PostInit:"PostInit",stop:"stop",resize:"resize",userAction:"userAction",navToggled:"navToggled",fullscreenToggled:"fullscreenToggled",zoomOut:"zoomOut",zoomIn:"zoomIn","1PageViewSelected":"1PageViewSelected","2PageViewSelected":"2PageViewSelected","3PageViewSelected":"3PageViewSelected",mobileNavOpen:"mobileNavOpen"},a=n(3609);function s(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}var u=function(){function e(t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.br=t,this.$root=null,this.$nav=null,this.maxPageNum=null,this.minimumControls=["viewmode"],this.maximumControls=["book_left","book_right","zoom_in","zoom_out","onepg","twopg","thumb"],this.updateNavIndexThrottled=(0,r.throttle)(this.updateNavIndex.bind(this),250,!1)}var t,n;return t=e,(n=[{key:"controlFor",value:function(e){var t=this.br.options.controls[e];return t.visible?t.template?"<li>".concat(t.template(this.br),"</li>"):'<li>\n      <button class="BRicon '.concat(t.className,'" title="').concat(t.label,'">\n        <div class="icon icon-').concat(t.iconClassName,'"></div>\n        <span class="tooltip">').concat(t.label,"</span>\n      </button>\n    </li>"):""}},{key:"_renderControls",value:function(){var e=this;return["bookLeft","bookRight","onePage","twoPage","thumbnail","viewmode","zoomOut","zoomIn","fullScreen"].map((function(t){return e.controlFor(t)})).join("")}},{key:"_bindViewModeButton",value:function(){var e=this,t=this.br,n=t.options.controls.viewmode,r=[{mode:t.constMode1up,className:"onepg",title:"One-page view"},{mode:t.constMode2up,className:"twopg",title:"Two-page view"},{mode:t.constModeThumb,className:"thumb",title:"Thumbnail view"}].filter((function(e){return!n.excludedModes.includes(e.mode)})),i=r.map((function(e){return e.mode}));n.excludedModes.includes(t.mode)&&t.switchMode(i[0]);for(var s=i.indexOf(t.mode),u=0;u<=s;u++)i.push(i.shift());r.length<2&&this.$nav.find(".".concat(n.className)).remove(),this.br.bind(o.PostInit,(function(){var o=e.$nav.find(".".concat(n.className)).off(".bindNavigationHandlers").on("click",(function(n){var o=i.shift(),s=r.find((function(e){return e.mode===o})),u=r.find((function(e){return e.mode===i[0]}));i.push(o),t.viewModeOrder=i,e.updateViewModeButton(a(n.currentTarget),u.className,u.title),t.switchMode(s.mode)})),s=r.find((function(e){return e.mode===i[0]}));e.updateViewModeButton(o,s.className,s.title)}))}},{key:"updateViewModeButton",value:function(e,t,n){e.attr("title",n).find(".icon").removeClass().addClass("icon icon-".concat(t)).end().find(".tooltip").text(n)}},{key:"switchNavbarControls",value:function(){"linerNotes"!==this.br.options.bookType&&(this.br.refs.$brContainer.prop("clientWidth")<640?this.showMinimumNavbarControls():this.showMaximumNavbarControls())}},{key:"showMinimumNavbarControls",value:function(){this.minimumControls.forEach((function(e){var t=document.querySelector(".controls .".concat(e));t&&t.classList.remove("hide")})),this.maximumControls.forEach((function(e){var t=document.querySelector(".controls .".concat(e));t&&t.classList.add("hide")}))}},{key:"showMaximumNavbarControls",value:function(){this.maximumControls.forEach((function(e){var t=document.querySelector(".controls .".concat(e));t&&t.classList.remove("hide")})),this.minimumControls.forEach((function(e){var t=document.querySelector(".controls .".concat(e));t&&t.classList.add("hide")}))}},{key:"init",value:function(){var e=this,t=this.br,n=t.options.navbarTitle,r="rl"===t.pageProgression,i=r?"book_flip_next":"book_flip_prev",o=r?"book_flip_prev":"book_flip_next";this.br.options.controls.bookLeft.className="book_left ".concat(i),this.br.options.controls.bookRight.className="book_right ".concat(o),t.refs.$BRfooter=this.$root=a('<div class="BRfooter"></div>'),t.refs.$BRnav=this.$nav=a('<div class="BRnav BRnavDesktop">\n          '.concat(n?'<div class="BRnavTitle">'.concat(n,"</div>"):"",'\n          <nav class="BRcontrols">\n            <ul class="controls">\n              <li class="scrubber">\n                <div class="BRnavpos">\n                  <div class="BRpager"></div>\n                  <div class="BRnavline"></div>\n                </div>\n                <p><span class=\'BRcurrentpage\'></span></p>\n              </li>\n              ').concat(this._renderControls(),"\n            </ul>\n          </nav>\n        </div>")),this.$root.append(this.$nav),t.refs.$br.append(this.$root);var 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m={defaults:null,padding:10,ui:"full",uiAutoHide:!1,thumbRowBuffer:1,thumbColumns:6,thumbMaxLoading:4,thumbPadding:10,thumbMinZoomColumns:2,thumbMaxZoomColumns:8,flipSpeed:400,showToolbar:!0,showNavbar:!0,navBarTitle:"",showLogo:!0,logoURL:"https://archive.org",imagesBaseURL:"/BookReader/images/",reduceSet:"pow2",reductionFactors:[{reduce:.25,autofit:null},{reduce:.5,autofit:null},{reduce:1,autofit:null},{reduce:2,autofit:null},{reduce:3,autofit:null},{reduce:4,autofit:null},{reduce:6,autofit:null}],onePage:{autofit:"auto"},twoPage:{coverInternalPadding:0,coverExternalPadding:0,bookSpineDivWidth:64,autofit:"auto"},onePageMinBreakpoint:800,bookTitle:"",bookUrl:null,bookUrlText:null,bookUrlTitle:null,enableBookTitleLink:!0,bookLanguage:null,metadata:[],thumbnail:null,bookUrlMoreInfo:null,enableExperimentalControls:!1,el:"#BookReader",pageProgression:"lr",ppi:500,protected:!1,plugins:{textSelection:null},vars:{},data:[],getNumLeafs:null,getPageWidth:null,getPageHeight:null,getPageURI:null,getPageSide:null,getSpreadIndices:null,getPageNum:null,getPageProp:null,leafNumToIndex:null,getEmbedCode:null,controls:{bookLeft:{visible:!0,label:"Flip 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e.bookUrl&&e.options.enableBookTitleLink?n.append(w("<a>").attr({href:e.bookUrl,title:e.bookUrlTitle}).addClass("BRreturn").html(e.bookUrlText||e.bookTitle)):e.bookTitle&&n.append(e.bookUrlText||e.bookTitle),e.refs.$BRtoolbar}},{key:"initToolbar",value:function(e,t){var n=this.br;n.refs.$br.append(this.buildToolbarElement()),n.$(".BRnavCntl").addClass("BRup"),n.$(".pause").hide(),n.refs.$BRtoolbar.append(),n.canSwitchToMode(n.constMode2up)||n.$(".two_page_mode, .play, .pause").hide(),n.canSwitchToMode(n.constModeThumb)||n.$(".thumbnail_mode").hide(),n.canSwitchToMode(n.constMode2up)||n.canSwitchToMode(n.constModeThumb)||n.$(".one_page_mode").hide(),w('<div style="display: none;"></div>').append(w('\n    <div class="BRfloat BRshare">\n      <div class="BRfloatHead">\n        Share\n        <button class="floatShut" href="javascript:;" onclick="$.fn.colorbox.close();"><span class="br-colorbox-shift">Close</span></button>\n      </div>\n    </div>')).append(w('\n    <div class="BRfloat BRinfo">\n      <div class="BRfloatHead">About this book\n        <button class="floatShut" href="javascript:;" onclick="$.fn.colorbox.close();"><span class="br-colorbox-shift">Close</span></button>\n      </div>\n      <div class="BRfloatBody">\n        <div class="BRfloatCover"></div>\n        <div class="BRfloatMeta">\n          <div class="BRfloatTitle">\n            <h2><a /></h2>\n          </div>\n        </div>\n      </div>\n      <div class="BRfloatFoot">\n        <a href="https://openlibrary.org/dev/docs/bookreader">About the BookReader</a>\n      </div>\n    </div>')).appendTo(n.refs.$br),n.$(".BRinfo .BRfloatTitle a").attr({href:n.bookUrl}).text(n.bookTitle).addClass("title"),this.buildInfoDiv(n.$(".BRinfo")),this.buildShareDiv(n.$(".BRshare")),n.$(".share").colorbox({inline:!0,opacity:"0.5",href:n.$(".BRshare"),onLoad:function(){n.trigger(o.stop),n.$(".BRpageviewValue").val(window.location.href)}}),n.$(".info").colorbox({inline:!0,opacity:"0.5",href:n.$(".BRinfo"),onLoad:function(){n.trigger(o.stop)}})}},{key:"buildShareDiv",value:function(e){var t=this,n=this.br,r=document.location+"",i=(r+"").replace(/#.*/,""),o=n.getEmbedCode?'\n      <div class="share-embed">\n        <p class="share-embed-prompt">Copy and paste one of these options to share this book elsewhere.</p>\n        <form method="post" action="">\n          <fieldset class="fieldset-share-pageview">\n            <label for="pageview">Link to this page view</label>\n            <input type="text" name="pageview" class="BRpageviewValue" value="'.concat(r,'"/>\n          </fieldset>\n          <fieldset 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f=s(u.getPageWidth(t)/a.br.thumbWidth),d=2*Math.round(f/2),p=a.br._createPageContainer(t).update({dimensions:{width:r,height:i,top:l,left:h},reduce:d});p.$container.data("leaf",t).on("mouseup",(function(e){a.br.updateFirstIndex(t,{suppressFragmentChange:!0}),a.br.switchMode(a.br.constMode1up,{suppressFragmentChange:!0});var n=a.br.viewModeOrder.shift();a.br.viewModeOrder.push(n),a.br._components.navbar.updateViewModeButton(St(".viewmode"),"twopg","Two-page view"),a.br.trigger(o.fragmentChange),e.stopPropagation()})),a.br.refs.$brPageViewEl.append(p.$container)};for(D.s();!(L=D.n()).done;)N()}catch(e){D.e(e)}finally{D.f()}}}var B,U=Et(this.br.displayedRows);try{for(U.s();!(B=U.n()).done;){var F=B.value;if((0,r.notInArray)(F,P)){var z,W,H=Et(null===(z=v[F])||void 0===z?void 0:z.leafs);try{for(H.s();!(W=H.n()).done;){var V,q=W.value.num;null!=S&&S.includes(q)||null===(V=this.br.$(".pagediv".concat(q)))||void 0===V||V.remove()}}catch(e){H.e(e)}finally{H.f()}}}}catch(e){U.e(e)}finally{U.f()}var Y=this.br.currentIndex();Y<E?this.br.updateFirstIndex(E):Y>C&&this.br.updateFirstIndex(C),this.br.displayedRows=P.slice(),this.br.$(".BRpagedivthumb_highlight").removeClass("BRpagedivthumb_highlight"),this.br.$(".pagediv"+this.br.currentIndex()).addClass("BRpagedivthumb_highlight")}},{key:"lazyLoadImage",value:function(e){var t=St(e).data("leaf"),n=St(e).data("reduce"),r=this.br.imageCache.image(t,n),i=St(e).parent();St(i).append(r),St(e).remove()}},{key:"zoom",value:function(e){var t=this.br.thumbColumns;switch(e){case"in":this.br.thumbColumns-=1;break;case"out":this.br.thumbColumns+=1;break;default:console.error("Unsupported direction: ".concat(e))}this.br.thumbColumns=(0,r.clamp)(this.br.thumbColumns,this.br.options.thumbMinZoomColumns,this.br.options.thumbMaxZoomColumns),this.br.thumbColumns!=t&&(this.br.displayedRows=[],this.prepare())}},{key:"getThumbnailWidth",value:function(e){var t=(e+1)*this.br.thumbPadding,n=(this.br.refs.$brPageViewEl.width()-t)/(e+.5),r=Math.floor(n);return r>0?r:100}},{key:"prepare",value:function(){this.br.refs.$brContainer.empty(),this.br.refs.$brContainer.css({overflowY:"scroll",overflowX:"auto"}),this.br.refs.$brPageViewEl=St("<div class='BRpageview'></div>"),this.br.refs.$brContainer.append(this.br.refs.$brPageViewEl),this.dragScrollable=this.dragScrollable||new Ie(this.br.refs.$brContainer[0],{preventDefault:!0}),this.br.bindGestures(this.br.refs.$brContainer),this.br.thumbWidth=this.getThumbnailWidth(this.br.thumbColumns),this.br.reduce=this.book.getPageWidth(0)/this.br.thumbWidth,this.br.displayedRows=[],this.drawLeafs(this.br.currentIndex()),this.br.updateBrClasses()}},{key:"jumpToIndex",value:function(e){for(var t=this,n=Math.floor,r=this.book,i=this.br.refs.$brContainer.prop("scrollWidth")-20,o=this.br.thumbWidth,a=0,s=0,u=0,c=0,l=0,h=0;h<=e;h++){s+(o+this.br.thumbPadding)>i&&(s=0,c=0,l=0);var f=n(r.getPageHeight(l)*this.br.thumbWidth/r.getPageWidth(l));f>c&&(c=f),0==l&&(a=u,u+=this.br.thumbPadding+c),s+=o+this.br.thumbPadding,l++}this.br.updateFirstIndex(e),this.br.refs.$brContainer.prop("scrollTop")==a?this.br.drawLeafs():(this.br.animating=!0,this.br.refs.$brContainer.stop(!0).animate({scrollTop:a},"fast",(function(){t.br.animating=!1})))}}])&&Tt(t.prototype,n),Object.defineProperty(t,"prototype",{writable:!1}),e}(),Ot=(n(4914),{floor:Math.floor,decr:function(e){return e-1}}),At={floor:function(e){return Math.pow(2,Math.floor(Math.log2(Math.max(1,e))))},decr:function(e){return Math.pow(2,Math.log2(e)-1)}},It={pow2:At,integer:Ot},Mt=n(3609);function jt(e){return function(e){if(Array.isArray(e))return $t(e)}(e)||function(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}(e)||function(e,t){if(e){if("string"==typeof e)return $t(e,t);var n=Object.prototype.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?$t(e,t):void 0}}(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function $t(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=new Array(t);n<t;n++)r[n]=e[n];return r}function Lt(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function Dt(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}var Nt=function(){function e(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},r=n.useSrcSet,i=void 0!==r&&r,o=n.reduceSet,a=void 0===o?At:o;Lt(this,e),this.book=t,this.useSrcSet=i,this.reduceSet=a,this.cache={},this.defaultScale=8}var t,n;return t=e,(n=[{key:"image",value:function(e,t){var n=(this.cache[e]||[]).filter((function(e){return e.loaded&&e.reduce<=t}));if(n.length){var r=Math.max.apply(Math,jt(n.map((function(e){return e.reduce}))));return this._serveImageElement(e,r)}return this._serveImageElement(e,t)}},{key:"imageLoaded",value:function(e,t){var n,r,i=null===(n=this.cache[e])||void 0===n?void 0:n.find((function(e){return e.reduce<=t}));return null!==(r=null==i?void 0:i.loaded)&&void 0!==r&&r}},{key:"getBestLoadedReduce",value:function(e){var t,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0,r=(null===(t=this.cache[e])||void 0===t?void 0:t.filter((function(e){return e.loaded})))||[];if(!r.length)return null;var i=r.filter((function(e){return e.reduce>=n}));if(i.length)return Math.min.apply(Math,jt(i.map((function(e){return e.reduce}))));var o=r.filter((function(e){return e.reduce<n}));return Math.max.apply(Math,jt(o.map((function(e){return e.reduce}))))}},{key:"_serveImageElement",value:function(e,t){var n,r=this.reduceSet.floor(t),i=null===(n=this.cache[e])||void 0===n?void 0:n.find((function(e){return e.reduce==r}));i||(i={reduce:r,loaded:!1},(this.cache[e]||(this.cache[e]=[])).push(i));var o=this.book.getPage(e),a=Mt("<img />",{class:"BRpageimage",alt:"Book page image",src:o.getURI(r,0)}).data("reduce",r);return this.useSrcSet&&a.attr("srcset",o.getURISrcSet(r)),i.loaded||a.one("load",(function(){return i.loaded=!0})),a}}])&&Dt(t.prototype,n),Object.defineProperty(t,"prototype",{writable:!1}),e}(),Bt=n(9860),Ut=n(3609),Ft=n(3609);function zt(e,t,n,r,i,o,a){try{var s=e[o](a),u=s.value}catch(e){return void n(e)}s.done?t(u):Promise.resolve(u).then(r,i)}function Wt(e){return function(){var t=this,n=arguments;return new Promise((function(r,i){var o=e.apply(t,n);function a(e){zt(o,r,i,a,s,"next",e)}function s(e){zt(o,r,i,a,s,"throw",e)}a(void 0)}))}}function Ht(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=new Array(t);n<t;n++)r[n]=e[n];return r}function Vt(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=Ft.extend(!0,{},Vt.defaultOptions,e,Vt.optionOverrides);this.setup(t)}function qt(e,t,n){var r=arguments.length>3&&void 0!==arguments[3]?arguments[3]:n,o=function(e){return e.br},a=function(e){return e._overrideable[t]};i(e,n,o,Vt,r,a)}-1!=location.toString().indexOf("_debugShowConsole=true")&&Ut((function(){return(new b.E).init()})),Vt.version="5.0.0-60",Vt.constMode1up=1,Vt.constMode2up=2,Vt.constModeThumb=3,Vt.imageCache=null,Vt.constNavAnimationDuration=300,Vt.constResizeAnimationDuration=100,Vt.eventNames=o,Vt.defaultOptions=m,Vt.optionOverrides={},Vt.prototype.setup=function(e){this.options=e,this.numLeafs=void 0,this.enableSearch=!1,this.viewModeOrder=[],this.suppressFragmentChange=!1,this.animationFinishedCallback=null,this.constMode1up=Vt.constMode1up,this.constMode2up=Vt.constMode2up,this.constModeThumb=Vt.constModeThumb,this.reduce=8,this.defaults=e.defaults,this.padding=e.padding,this.reduceSet=It[e.reduceSet],this.reduceSet||(console.warn("Invalid reduceSet ".concat(e.reduceSet,". Ignoring.")),this.reduceSet=It[m.reduceSet]),this.mode=null,this.prevReadMode=null,this.ui=e.ui,this.uiAutoHide=e.uiAutoHide,this.thumbWidth=100,this.thumbRowBuffer=e.thumbRowBuffer,this.thumbColumns=e.thumbColumns,this.thumbMaxLoading=e.thumbMaxLoading,this.thumbPadding=e.thumbPadding,this.displayedRows=[],this.displayedIndices=[],this.animating=!1,this.flipSpeed="number"==typeof e.flipSpeed?e.flipSpeed:{fast:200,slow:600}[e.flipSpeed]||400,this.flipDelay=e.flipDelay,this.firstIndex=null,this.isFullscreenActive=e.startFullscreen||!1,this.lastScroll=null,this.showLogo=e.showLogo,this.logoURL=e.logoURL,this.imagesBaseURL=e.imagesBaseURL,this.reductionFactors=e.reductionFactors,this.onePage=e.onePage,this.twoPage=e.twoPage,this.onePageMinBreakpoint=e.onePageMinBreakpoint,this.bookTitle=e.bookTitle,this.bookUrl=e.bookUrl,this.bookUrlText=e.bookUrlText,this.bookUrlTitle=e.bookUrlTitle,this.titleLeaf=e.titleLeaf,this.metadata=e.metadata,this.thumbnail=e.thumbnail,this.bookUrlMoreInfo=e.bookUrlMoreInfo,this.enableExperimentalControls=e.enableExperimentalControls,this.el=e.el,this.pageProgression=e.pageProgression,this.protected=e.protected,this.getEmbedCode=e.getEmbedCode,this.popup=null,this.data=e.data,this.refs={},this.book=new O(this),e.getNumLeafs&&(this.book.getNumLeafs=e.getNumLeafs.bind(this)),e.getPageWidth&&(this.book.getPageWidth=e.getPageWidth.bind(this)),e.getPageHeight&&(this.book.getPageHeight=e.getPageHeight.bind(this)),e.getPageURI&&(this.book.getPageURI=e.getPageURI.bind(this)),e.getPageSide&&(this.book.getPageSide=e.getPageSide.bind(this)),e.getPageNum&&(this.book.getPageNum=e.getPageNum.bind(this)),e.getPageProp&&(this.book.getPageProp=e.getPageProp.bind(this)),e.getSpreadIndices&&(this.book.getSpreadIndices=e.getSpreadIndices.bind(this)),e.leafNumToIndex&&(this.book.leafNumToIndex=e.leafNumToIndex.bind(this)),this._components={navbar:new u(this),toolbar:new x(this)},this._modes={mode1Up:new Ve(this,this.book),mode2Up:new Pt(this,this.book),modeThumb:new Rt(this,this.book)},this._overrideable={book:this.book,"_components.navbar":this._components.navbar,"_components.toolbar":this._components.toolbar,"_modes.mode1Up":this._modes.mode1Up,"_modes.mode2Up":this._modes.mode2Up,"_modes.modeThumb":this._modes.modeThumb},this.imageCache=new Nt(this.book,{useSrcSet:this.options.useSrcSet,reduceSet:this.reduceSet}),this.hasKeyFocus=!0},Vt.prototype.getActivePageContainerElements=function(){var e=Object.values(this._modes.mode2Up.mode2UpLit.pageContainerCache).map((function(e){return e.$container[0]})).concat(Object.values(this._modes.mode1Up.mode1UpLit.pageContainerCache).map((function(e){return e.$container[0]})));return this.mode==this.constModeThumb&&(e=e.concat(this.$(".BRpagecontainer").toArray())),e},Vt.prototype.getActivePageContainerElementsForIndex=function(e){var t,n,r,i,o;return[null===(t=this._modes.mode2Up.mode2UpLit.pageContainerCache[e])||void 0===t||null===(n=t.$container)||void 0===n?void 0:n[0],null===(r=this._modes.mode1Up.mode1UpLit.pageContainerCache[e])||void 0===r||null===(i=r.$container)||void 0===i?void 0:i[0]].concat((o=this.mode==this.constModeThumb?this.$(".pagediv".concat(e)).toArray():[],function(e){if(Array.isArray(e))return Ht(e)}(o)||function(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}(o)||function(e,t){if(e){if("string"==typeof e)return Ht(e,t);var n=Object.prototype.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?Ht(e,t):void 0}}(o)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}())).filter((function(e){return e}))},Object.defineProperty(Vt.prototype,"activeMode",{get:function(){return{1:this._modes.mode1Up,2:this._modes.mode2Up,3:this._modes.modeThumb}[this.mode]}}),Vt.util=r,Vt.prototype.extendParams=function(e,t){var n=Ut.extend({},t);if(void 0!==n.page){var r=this.book.parsePageString(n.page);isNaN(r)||(n.index=r),delete n.page}Ut.extend(e,n)},Vt.prototype.initParams=function(){var e={init:!0,pageFound:!1,fragmentChange:!1};if(void 0!==this.titleLeaf&&this.book.getNumLeafs()>2?e.index=this.book.leafNumToIndex(this.titleLeaf):e.index=0,this.defaults){var t=this.paramsFromFragment(this.defaults);void 0!==t.page&&(e.pageFound=!0),this.extendParams(e,t)}if(this.options.enablePageResume){var n=this.getResumeValue();null!==n&&(e.index!==n&&(e.fragmentChange=!0),e.index=n)}if(this.options.enableUrlPlugin){var i=this.paramsFromFragment(this.urlReadFragment());!Object.keys(i).length&&this.urlReadHashFragment()&&"history"===this.options.urlMode&&(i=this.paramsFromFragment(this.urlReadHashFragment())),Object.keys(i).length&&(void 0!==i.page&&(e.pageFound=!0),this.extendParams(e,i),e.fragmentChange=!0)}if(this.options.enableSearch&&(this.options.goToFirstResult=!e.pageFound,!this.options.initialSearchTerm))if(e.search)this.options.initialSearchTerm=e.search,this.searchTerm=e.search;else{var o=new URLSearchParams(this.readQueryString()).get("q");o&&(this.options.initialSearchTerm=r.decodeURIComponentPlus(o))}return this.suppressFragmentChange=!e.fragmentChange,e},Vt.prototype.getLocationSearch=function(){return window.location.search},Vt.prototype.getLocationHash=function(){return window.location.hash},Vt.prototype.readQueryString=function(){var e=this.getLocationSearch();if(e)return e;var t=this.getLocationHash(),n=t.search(/\?\w+=/);return n>-1?t.slice(n):""},Vt.prototype.getInitialMode=function(e){var t,n=Ut(window).width(),r=n&&n<=this.onePageMinBreakpoint;if(t=e.mode?e.mode:r?this.constMode1up:this.constMode2up,this.canSwitchToMode(t)||(t=this.constMode1up),this.options.defaults)try{t=function(e){var t={"mode/1up":1,"mode/2up":2,"mode/thumb":3};if(!(e in t))throw new y("Invalid mode string: ".concat(e));return t[e]}(this.options.defaults)}catch(e){}return t},Vt.prototype.init=function(){this.init.initComplete=!1,this.pageScale=this.reduce;var e=this.initParams();this.firstIndex=e.index?e.index:0,this.isTouchDevice=!!("ontouchstart"in window)||!!("msmaxtouchpoints"in window.navigator),this.refs.$br=Ut(this.el).empty().removeClass().addClass("ui-"+this.ui).addClass("br-ui-"+this.ui).addClass("BookReader"),this.isTouchDevice?this.refs.$br.addClass("touch"):this.refs.$br.addClass("no-touch"),this.refs.$brContainer=Ut("<div class='BRcontainer' dir='ltr'></div>"),this.refs.$br.append(this.refs.$brContainer),e.mode=this.getInitialMode(e),this.mode=e.mode,this.options.showToolbar&&this.initToolbar(this.mode,this.ui),this.options.showNavbar&&this.initNavbar(),this._components.navbar.switchNavbarControls(),this.resizeBRcontainer(),this.updateFromParams(e),this.initUIStrings(),this.bindNavigationHandlers(),this.setupKeyListeners(),this.lastScroll=(new Date).getTime(),this.refs.$brContainer.on("scroll",this,(function(e){e.data.lastScroll=(new Date).getTime(),e.data.constModeThumb==e.data.mode&&e.data.drawLeafsThrottled()})),this.options.autoResize&&(Ut(window).on("resize",this,(function(e){e.data.resize()})),Ut(window).on("orientationchange",this,function(e){e.data.resize()}.bind(this))),this.protected&&this.$(".BRicon.share").hide(),this.options.initialSearchTerm||(this.suppressFragmentChange=!1),this.options.startFullscreen&&this.enterFullscreen(!0),this.init.initComplete=!0,this.trigger(Vt.eventNames.PostInit)},Vt.prototype.trigger=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this,n="BookReader:"+e;r.polyfillCustomEvent(window),window.dispatchEvent(new CustomEvent(n,{bubbles:!0,composed:!0,detail:{props:t}})),Ut(document).trigger(n,t)},Vt.prototype.bind=function(e,t){Ut(document).on("BookReader:"+e,t)},Vt.prototype.unbind=function(e,t){Ut(document).off("BookReader:"+e,t)},Vt.prototype.resize=function(){this.init.initComplete&&(this.resizeBRcontainer(),this._components.navbar.switchNavbarControls(),this.constMode1up==this.mode?"none"!=this.onePage.autofit?(this._modes.mode1Up.resizePageView(),this.centerPageView()):(this.centerPageView(),this.displayedIndices=[],this.drawLeafsThrottled()):this.constModeThumb==this.mode?this._modes.modeThumb.prepare():this._modes.mode2Up.resizePageView(),this.trigger(Vt.eventNames.resize))},Vt.prototype.setupKeyListeners=function(){var e=this;window.IntersectionObserver&&new IntersectionObserver((function(t){t.forEach((function(t){0===t.intersectionRatio?e.hasKeyFocus=!1:e.hasKeyFocus=!0}))}),{root:null,rootMargin:"0px",threshold:[0,.05,1]}).observe(this.refs.$br[0]),document.addEventListener("keydown",(function(t){if(e.hasKeyFocus&&!(t.getModifierState("Control")||t.getModifierState("Alt")||t.getModifierState("Meta")||t.getModifierState("Win")||r.isInputActive()))switch(t.key){case"Home":t.preventDefault(),e.first();break;case"End":t.preventDefault(),e.last();break;case"ArrowDown":case"PageDown":case"Down":e.constMode2up===e.mode&&(t.preventDefault(),e.next());break;case"ArrowUp":case"PageUp":case"Up":e.constMode2up===e.mode&&(t.preventDefault(),e.prev());break;case"ArrowLeft":case"Left":e.constModeThumb!=e.mode&&(t.preventDefault(),e.left());break;case"ArrowRight":case"Right":e.constModeThumb!=e.mode&&(t.preventDefault(),e.right());break;case"-":case"Subtract":t.preventDefault(),e.zoom(-1);break;case"+":case"=":case"Add":t.preventDefault(),e.zoom(1);break;case"F":case"f":t.preventDefault(),e.toggleFullscreen()}}))},Vt.prototype.drawLeafs=function(){this.constMode1up!=this.mode&&this.activeMode.drawLeafs()},Vt.prototype._createPageContainer=function(e){return new Bt._z(this.book.getPage(e,!1),{isProtected:this.protected,imageCache:this.imageCache,loadingImage:this.imagesBaseURL+"loading.gif"})},Vt.prototype.bindGestures=function(e){var t=this,n=1;e.unbind("touchmove").bind("touchmove",(function(e){e.originalEvent.cancelable&&(n=e.originalEvent.touches.length),e.stopPropagation()})),e.unbind("gesturechange").bind("gesturechange",(function(e){e.preventDefault(),2!==n||(new Date).getTime()-t.lastScroll<500||(e.originalEvent.scale>1.5?t.zoom(1):e.originalEvent.scale<.6&&t.zoom(-1))}))},Vt.prototype.drawLeafsThrottled=r.throttle(Vt.prototype.drawLeafs,250),Vt.prototype.zoom=function(e){var t;1==e?this.activeMode.zoom("in"):this.activeMode.zoom("out"),null===(t=this.textSelectionPlugin)||void 0===t||t.stopPageFlip(this.refs.$brContainer)},Vt.prototype.resizeBRcontainer=function(e){e?this.refs.$brContainer.animate({top:this.getToolBarHeight(),bottom:this.getFooterHeight()},this.constResizeAnimationDuration,"linear"):this.refs.$brContainer.css({top:this.getToolBarHeight(),bottom:this.getFooterHeight()})},Vt.prototype.centerPageView=function(){var e=this.refs.$brContainer.prop("scrollWidth"),t=this.refs.$brContainer.prop("clientWidth");e>t&&this.refs.$brContainer.prop("scrollLeft",(e-t)/2)},Vt.prototype.quantizeReduce=function(e,t){for(var n=t[0].reduce,r=Math.abs(e-n),i=1;i<t.length;i++){var o=Math.abs(e-t[i].reduce);o<r&&(r=o,n=t[i].reduce)}return n},Vt.prototype.nextReduce=function(e,t,n){if("in"===t){for(var r=0,i=1;i<n.length;i++)n[i].reduce<e&&(r=i);return n[r]}if("out"===t){for(var o=n.length-1,a=o,s=o;s>=0;s--)n[s].reduce>e&&(a=s);return n[a]}if("auto"===t){var u=n.find((function(e){return"auto"==e.autofit}));if(u)return u;for(var c=n.filter((function(e){var t=e.autofit;return"height"==t||"width"==t})),l=null,h=0;h<c.length;h++)(null===l||l.reduce<c[h].reduce)&&(l=c[h]);if(l)return l}else if("height"===t||"width"===t){var f=n.find((function(e){return e.autofit==t}));if(f)return f}return n[0]},Vt.prototype._reduceSort=function(e,t){return e.reduce-t.reduce},Vt.prototype.jumpToPage=function(e){var t=this.book.parsePageString(e);return void 0!==t&&(this.jumpToIndex(t),!0)},Vt.prototype._isIndexDisplayed=function(e){return this.displayedIndices?this.displayedIndices.includes(e):this.currentIndex()==e},Vt.prototype.jumpToIndex=function(e,t,n,r){var i=this.book.getPage(e);if(!i.isViewable&&i.unviewablesStart!=i.index){var o=this._isIndexDisplayed(i.unviewablesStart)?i.findNext({combineConsecutiveUnviewables:!0}).index:i.unviewablesStart;return this.jumpToIndex(o,t,n,r)}this.trigger(Vt.eventNames.stop),this.activeMode.jumpToIndex(e,t,n,r)},Vt.prototype.getPrevReadMode=function(e){return e===Vt.constMode1up||e===Vt.constMode2up?e:null===this.prevReadMode?Vt.constMode1up:void 0},Vt.prototype.switchMode=function(e){var t,n,r,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},o=i.suppressFragmentChange,a=void 0!==o&&o;if(i.init,i.pageFound,this.init.initComplete){if(e===this.mode)return;if(!this.canSwitchToMode(e))return}this.trigger(Vt.eventNames.stop),this.prevReadMode=this.getPrevReadMode(this.mode),this.mode!=e&&(null===(n=(r=this.activeMode).unprepare)||void 0===n||n.call(r)),this.mode=e,this.pageScale!==this.reduce&&(this.reduce=this.pageScale),this.constMode1up==e?this._modes.mode1Up.prepare():this.constModeThumb==e?(this.reduce=this.quantizeReduce(this.reduce,this.reductionFactors),this._modes.modeThumb.prepare()):this._modes.mode2Up.prepare(),this.suppressFragmentChange||a||this.trigger(Vt.eventNames.fragmentChange);var s=e+"PageViewSelected";this.trigger(Vt.eventNames[s]),null===(t=this.textSelectionPlugin)||void 0===t||t.stopPageFlip(this.refs.$brContainer)},Vt.prototype.updateBrClasses=function(){var e={};e[this.constMode1up]="BRmode1up",e[this.constMode2up]="BRmode2up",e[this.constModeThumb]="BRmodeThumb",this.refs.$br.removeClass("BRmode1up BRmode2up BRmodeThumb").addClass(e[this.mode]),this.isFullscreen()?(this.refs.$br.addClass("fullscreenActive"),Ut(document.body).addClass("BRfullscreenActive")):(this.refs.$br.removeClass("fullscreenActive"),Ut(document.body).removeClass("BRfullscreenActive"))},Vt.prototype.isFullscreen=function(){return this.isFullscreenActive},Vt.prototype.toggleFullscreen=Wt(regeneratorRuntime.mark((function e(){var t,n=arguments;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:if(t=!(n.length>0&&void 0!==n[0])||n[0],!this.isFullscreen()){e.next=6;break}return e.next=4,this.exitFullScreen();case 4:e.next=8;break;case 6:return e.next=8,this.enterFullscreen(t);case 8:case"end":return e.stop()}}),e,this)}))),Vt.prototype.enterFullscreen=Wt(regeneratorRuntime.mark((function e(){var t,n,r,i=this,o=arguments;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:if(n=!(o.length>0&&void 0!==o[0])||o[0],this.refs.$br.addClass("BRfullscreenAnimation"),r=this.currentIndex(),n&&(this._fullscreenCloseHandler=function(e){27===e.keyCode&&i.toggleFullscreen()},Ut(document).on("keyup",this._fullscreenCloseHandler)),Ut(window).width()<=this.onePageMinBreakpoint&&this.switchMode(this.constMode1up),this.isFullscreenActive=!0,this.updateBrClasses(),!(this.activeMode instanceof Ve)){e.next=13;break}return this.activeMode.mode1UpLit.scale=this.activeMode.mode1UpLit.computeDefaultScale(this.book.getPage(r)),this.activeMode.mode1UpLit.requestUpdate(),e.next=13,this.activeMode.mode1UpLit.updateComplete;case 13:return this.jumpToIndex(r),null===(t=this.textSelectionPlugin)||void 0===t||t.stopPageFlip(this.refs.$brContainer),this.trigger(Vt.eventNames.fragmentChange),this.trigger(Vt.eventNames.fullscreenToggled),e.next=19,new Promise((function(e){return setTimeout(e,0)}));case 19:this.resize(),this.refs.$br.removeClass("BRfullscreenAnimation");case 21:case"end":return e.stop()}}),e,this)}))),Vt.prototype.exitFullScreen=Wt(regeneratorRuntime.mark((function e(){var t,n;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:return this.refs.$br.addClass("BRfullscreenAnimation"),Ut(document).off("keyup",this._fullscreenCloseHandler),n=Ut(window).width(),this.options.controls.twoPage.visible&&n<=this.onePageMinBreakpoint&&this.switchMode(this.constMode2up),this.isFullscreenActive=!1,this.trigger(Vt.eventNames.fullscreenToggled),this.updateBrClasses(),e.next=10,new Promise((function(e){return setTimeout(e,0)}));case 10:if(this.resize(),!(this.activeMode instanceof Ve)){e.next=16;break}return this.activeMode.mode1UpLit.scale=this.activeMode.mode1UpLit.computeDefaultScale(this.book.getPage(this.currentIndex())),this.activeMode.mode1UpLit.requestUpdate(),e.next=16,this.activeMode.mode1UpLit.updateComplete;case 16:null===(t=this.textSelectionPlugin)||void 0===t||t.stopPageFlip(this.refs.$brContainer),this.trigger(Vt.eventNames.fragmentChange),this.refs.$br.removeClass("BRfullscreenAnimation");case 19:case"end":return e.stop()}}),e,this)}))),Vt.prototype.currentIndex=function(){if(this.mode==this.constMode1up||this.mode==this.constModeThumb)return this.firstIndex;if(this.mode==this.constMode2up)return r.clamp(this.firstIndex,0,this.book.getNumLeafs()-1);throw"currentIndex called for unimplemented mode "+this.mode},Vt.prototype.updateFirstIndex=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=t.suppressFragmentChange,r=void 0!==n&&n;this.firstIndex!==e&&(this.firstIndex=e,this.suppressFragmentChange||r||this.trigger(Vt.eventNames.fragmentChange),this.options.initialSearchTerm&&!r&&(this.suppressFragmentChange=!1),this.trigger(Vt.eventNames.pageChanged),this.trigger(Vt.eventNames.userAction),this._components.navbar.updateNavIndexThrottled(e))},Vt.prototype.right=function(){"rl"!=this.pageProgression?this.next():this.prev()},Vt.prototype.rightmost=function(){"rl"!=this.pageProgression?this.last():this.first()},Vt.prototype.left=function(){"rl"!=this.pageProgression?this.prev():this.next()},Vt.prototype.leftmost=function(){"rl"!=this.pageProgression?this.first():this.last()},Vt.prototype.next=function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.triggerStop,n=void 0===t||t;this.constMode2up==this.mode?(n&&this.trigger(Vt.eventNames.stop),this._modes.mode2Up.mode2UpLit.flipAnimation("next")):this.firstIndex<this.book.getNumLeafs()-1&&this.jumpToIndex(this.firstIndex+1)},Vt.prototype.prev=function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.triggerStop,n=void 0===t||t,r=this.firstIndex<1;r||(this.constMode2up==this.mode?(n&&this.trigger(Vt.eventNames.stop),this._modes.mode2Up.mode2UpLit.flipAnimation("prev")):this.firstIndex>=1&&this.jumpToIndex(this.firstIndex-1))},Vt.prototype.first=function(){this.jumpToIndex(0)},Vt.prototype.last=function(){this.jumpToIndex(this.book.getNumLeafs()-1)},Vt.prototype.initNavbar=u.prototype.init,qt(u,"_components.navbar","init","initNavbar"),Vt.prototype.buildToolbarElement=x.prototype.buildToolbarElement,qt(x,"_components.toolbar","buildToolbarElement"),Vt.prototype.initToolbar=x.prototype.initToolbar,qt(x,"_components.toolbar","initToolbar"),Vt.prototype.buildShareDiv=x.prototype.buildShareDiv,qt(x,"_components.toolbar","buildShareDiv"),Vt.prototype.buildInfoDiv=x.prototype.buildInfoDiv,qt(x,"_components.toolbar","buildInfoDiv"),Vt.prototype.getToolBarHeight=x.prototype.getToolBarHeight,qt(x,"_components.toolbar","getToolBarHeight"),Vt.prototype.bindNavigationHandlers=function(){var e=this,t=this,n=this.$(".BRicon").add(".BRmobileMenu .BRicon"),r={book_left:function(){e.trigger(Vt.eventNames.stop),e.left()},book_right:function(){e.trigger(Vt.eventNames.stop),e.right()},book_top:this.first.bind(this),book_bottom:this.last.bind(this),book_leftmost:this.leftmost.bind(this),book_rightmost:this.rightmost.bind(this),onepg:function(){e.switchMode(t.constMode1up)},thumb:function(){e.switchMode(t.constModeThumb)},twopg:function(){e.switchMode(t.constMode2up)},zoom_in:function(){e.trigger(Vt.eventNames.stop),e.zoom(1),e.trigger(Vt.eventNames.zoomIn)},zoom_out:function(){e.trigger(Vt.eventNames.stop),e.zoom(-1),e.trigger(Vt.eventNames.zoomOut)},full:function(){if("embed"==e.ui){var t=e.$(".BRembedreturn a").attr("href");window.open(t)}else e.toggleFullscreen()}};this.$("nav.BRcontrols li button").on("click",(function(){e.trigger(Vt.eventNames.userAction)})),n.filter(".fit").bind("fit",(function(){}));var i=function(e){n.filter(".".concat(e)).on("click.bindNavigationHandlers",(function(){return r[e](),!1}))};for(var o in r)i(o);var a=this.$(".BRnavCntlBtm"),s=this.$(".BRnavCntlTop");this.$(".BRnavCntl").click((function(){var e=[];a.hasClass("BRdn")?(t.refs.$BRtoolbar&&e.push(t.refs.$BRtoolbar.animate({top:-1*t.getToolBarHeight()}).promise()),e.push(t.$(".BRfooter").animate({bottom:-1*t.getFooterHeight()}).promise()),a.addClass("BRup").removeClass("BRdn"),s.addClass("BRdn").removeClass("BRup"),t.$(".BRnavCntlBtm.BRnavCntl").animate({height:"45px"}),t.$(".BRnavCntl").delay(1e3).animate({opacity:.75},1e3)):(t.refs.$BRtoolbar&&e.push(t.refs.$BRtoolbar.animate({top:0}).promise()),e.push(t.$(".BRfooter").animate({bottom:0}).promise()),a.addClass("BRdn").removeClass("BRup"),s.addClass("BRup").removeClass("BRdn"),t.$(".BRnavCntlBtm.BRnavCntl").animate({height:"30px"}),t.$(".BRvavCntl").animate({opacity:1})),Ut.when.apply(Ut,e).done((function(){t.mode==t.constMode2up&&null!=t.twoPage.autofit&&"none"!=t.twoPage.autofit||t.mode==t.constMode1up&&null!=t.onePage.autofit&&"none"!=t.onePage.autofit?t.resize():t.resizeBRcontainer()}))})),a.on("mouseover",(function(){Ut(this).hasClass("BRup")&&t.$(".BRnavCntl").animate({opacity:1},250)})).on("mouseleave",(function(){Ut(this).hasClass("BRup")&&t.$(".BRnavCntl").animate({opacity:.75},250)})),s.on("mouseover",(function(){Ut(this).hasClass("BRdn")&&t.$(".BRnavCntl").animate({opacity:1},250)})).on("mouseleave",(function(){Ut(this).hasClass("BRdn")&&t.$(".BRnavCntl").animate({opacity:.75},250)})),this.initSwipeData(),Ut(document).off("mousemove.navigation",this.el),Ut(document).on("mousemove.navigation",this.el,{br:this},this.navigationMousemoveHandler),Ut(document).off("mousedown.swipe",".BRpageimage"),Ut(document).on("mousedown.swipe",".BRpageimage",{br:this},this.swipeMousedownHandler),this.bindMozTouchHandlers()},Vt.prototype.unbindNavigationHandlers=function(){Ut(document).off("mousemove.navigation",this.el)},Vt.prototype.navigationMousemoveHandler=function(e){if(e.data.br.uiAutoHide){var t=Ut(document).height()-75;e.pageY<76||e.pageY>t?e.data.br.hideNavigation():e.data.br.showNavigation()}},Vt.prototype.initSwipeData=function(e,t){this._swipe={mightBeSwiping:!1,didSwipe:!1,mightBeDraggin:!1,didDrag:!1,startTime:(new Date).getTime(),startX:e,startY:t,lastX:e,lastY:t,deltaX:0,deltaY:0,deltaT:0}},Vt.prototype.swipeMousedownHandler=function(e){var t=e.data.br;return 3==e.which?!t.protected:(Ut(e.target).on("mouseout.swipe",{br:t},t.swipeMouseupHandler).on("mouseup.swipe",{br:t},t.swipeMouseupHandler).on("mousemove.swipe",{br:t},t.swipeMousemoveHandler),t.initSwipeData(e.clientX,e.clientY),t._swipe.mightBeSwiping=!0,t._swipe.mightBeDragging=!0,e.preventDefault(),e.returnValue=!1,e.cancelBubble=!0,!1)},Vt.prototype.swipeMousemoveHandler=function(e){var t=e.data.br,n=t._swipe;if(n.mightBeSwiping){n.deltaX=e.clientX-n.startX,n.deltaY=e.clientY-n.startY,n.deltaT=(new Date).getTime()-n.startTime;var r=Math.abs(n.deltaX),i=Math.abs(n.deltaY),o=Math.min(t.refs.$br.width()/5,80);return r>i&&r>o&&n.deltaT<400&&(n.mightBeSwiping=!1,n.didSwipe=!0,t.mode==t.constMode2up&&(n.deltaX<0?t.right():t.left())),n.deltaT>400&&!n.didSwipe&&n.mightBeDragging&&(n.didDrag=!0,t.refs.$brContainer.scrollTop(t.refs.$brContainer.scrollTop()-e.clientY+n.lastY).scrollLeft(t.refs.$brContainer.scrollLeft()-e.clientX+n.lastX)),n.lastX=e.clientX,n.lastY=e.clientY,e.preventDefault(),e.returnValue=!1,e.cancelBubble=!0,!1}},Vt.prototype.swipeMouseupHandler=function(e){var t=e.data.br._swipe;return t.mightBeSwiping=!1,t.mightBeDragging=!1,Ut(e.target).off("mouseout.swipe").off("mouseup.swipe").off("mousemove.swipe"),!t.didSwipe&&!t.didDrag||(e.preventDefault(),e.returnValue=!1,e.cancelBubble=!0,!1)},Vt.prototype.bindMozTouchHandlers=function(){var e=this;this.refs.$br.on("MozTouchDown",(function(t){this.mode==e.constMode2up&&t.preventDefault()})).on("MozTouchMove",(function(t){this.mode==e.constMode2up&&t.preventDefault()})).on("MozTouchUp",(function(t){this.mode==e.constMode2up&&t.preventDefault()}))},Vt.prototype.navigationIsVisible=function(){return 0==this.refs.$BRtoolbar.position().top},Vt.prototype.setNavigationView=function(e){var t=this.constNavAnimationDuration,n="linear",r=function(){this.constMode2up!==this.mode&&this.resizeBRcontainer(!0),this.trigger(Vt.eventNames.navToggled)}.bind(this),i=0,o=0;e?(i=-1*this.getToolBarHeight(),o=-1*this.getFooterHeight(),this.refs.$BRtoolbar.addClass("js-menu-hide"),this.refs.$BRfooter.addClass("js-menu-hide")):(this.refs.$BRtoolbar.removeClass("js-menu-hide"),this.refs.$BRfooter.removeClass("js-menu-hide")),this.refs.$BRtoolbar.animate({top:i},t,n,r),this.refs.$BRfooter.animate({bottom:o},t,n,r)},Vt.prototype.hideNavigation=function(){this.navigationIsVisible()&&this.setNavigationView(!0)},Vt.prototype.showNavigation=function(){this.navigationIsVisible()||this.setNavigationView()},Vt.prototype.getPageURI=O.prototype.getPageURI,qt(O,"book","getPageURI"),Vt.prototype.updateFromParams=function(e){var t=e.mode,n=void 0===t?0:t,r=e.init,i=void 0!==r&&r,o=e.fragmentChange,a=void 0!==o&&o;n&&this.switchMode(n,{init:i,suppressFragmentChange:!a}),void 0!==e.index?e.index!=this.currentIndex()&&this.jumpToIndex(e.index):void 0!==e.page&&e.page!=this.book.getPageNum(this.currentIndex())&&this.jumpToPage(e.page),this.enableSearch&&void 0!==e.search&&this.searchTerm!==e.search&&this.$(".BRsearchInput").val(e.search),this.enableThemesPlugin&&void 0!==e.theme&&this.updateTheme(e.theme)},Vt.prototype.canSwitchToMode=function(e){return e!=this.constMode2up&&e!=this.constModeThumb||!(this.book.getNumLeafs()<2)},Vt.prototype._getPageURI=function(e,t,n){var r=this.book.getPage(e,!1);return r?(void 0===t&&(t=r.height/this.twoPage.height),r.getURI(t,n)):this.imagesBaseURL+"transparent.png"},Vt.prototype.showProgressPopup=function(e,t){var n=this;if(!this.popup){if(this.popup=document.createElement("div"),Ut(this.popup).prop("className","BRprogresspopup"),"function"==typeof t){var r=document.createElement("button");r.setAttribute("title","close"),r.setAttribute("class","close-popup");var i=document.createElement("span");i.setAttribute("class","icon icon-close-dark"),Ut(r).append(i),r.addEventListener("click",(function(){t(),n.removeProgressPopup()})),Ut(this.popup).append(r)}var o=document.createElement("div");if(Ut(o).css({height:"20px"}).prop("className","BRprogressbar"),Ut(this.popup).append(o),e){var a=document.createElement("div");a.innerHTML=e,Ut(this.popup).append(a)}Ut(this.popup).appendTo(this.refs.$br)}},Vt.prototype.removeProgressPopup=function(){Ut(this.popup).remove(),this.$(".BRprogresspopup").remove(),this.popup=null},Vt.prototype.initUIStrings=function(){var e={".logo":"Go to Archive.org",".zoom_in":"Zoom in",".zoom_out":"Zoom out",".onepg":"One-page view",".twopg":"Two-page view",".thumb":"Thumbnail view",".print":"Print this page",".embed":"Embed BookReader",".link":"Link to this book (and page)",".bookmark":"Bookmark this page",".share":"Share this book",".info":"About this book",".full":"Toggle fullscreen",".book_left":"Flip left",".book_right":"Flip right",".play":"Play",".pause":"Pause",".BRdn":"Show/hide nav bar",".BRup":"Show/hide nav bar",".book_top":"First page",".book_bottom":"Last page",".book_leftmost":"First page",".book_rightmost":"Last page"};for(var t in"rl"==this.pageProgression&&(e[".book_leftmost"]="Last page",e[".book_rightmost"]="First page"),e)this.$(t).prop("title",e[t])},Vt.prototype.reloadImages=function(){this.refs.$brContainer.find("img").each((function(e,t){if(!t.complete||0===t.naturalHeight){var n=t.src;t.src="",setTimeout((function(){t.src=n}),1e3)}}))},Vt.prototype.getFooterHeight=function(){var e=this.mode==this.constMode2up?this.refs.$BRfooter:this.refs.$BRnav;if(e&&this.refs.$BRfooter){var t=e.outerHeight(),n=parseInt(this.refs.$BRfooter.css("bottom"));if(!isNaN(t)&&!isNaN(n))return t+n}return 0},Vt.prototype.paramsFromCurrent=function(){var 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i,o=this;"boolean"!=typeof t&&(r=n,n=t,t=!1),r?(n=i=e(n),this.bindings=this.bindings.add(n)):(r=n,n=this.element,i=this.widget()),e.each(r,(function(r,a){function s(){if(t||!0!==o.options.disabled&&!e(this).hasClass("ui-state-disabled"))return("string"==typeof a?o[a]:a).apply(o,arguments)}"string"!=typeof a&&(s.guid=a.guid=a.guid||s.guid||e.guid++);var u=r.match(/^([\w:-]*)\s*(.*)$/),c=u[1]+o.eventNamespace,l=u[2];l?i.on(c,l,s):n.on(c,s)}))},_off:function(t,n){n=(n||"").split(" ").join(this.eventNamespace+" ")+this.eventNamespace,t.off(n).off(n),this.bindings=e(this.bindings.not(t).get()),this.focusable=e(this.focusable.not(t).get()),this.hoverable=e(this.hoverable.not(t).get())},_delay:function(e,t){var n=this;return setTimeout((function(){return("string"==typeof e?n[e]:e).apply(n,arguments)}),t||0)},_hoverable:function(t){this.hoverable=this.hoverable.add(t),this._on(t,{mouseenter:function(t){this._addClass(e(t.currentTarget),null,"ui-state-hover")},mouseleave:function(t){this._removeClass(e(t.currentTarget),null,"ui-state-hover")}})},_focusable:function(t){this.focusable=this.focusable.add(t),this._on(t,{focusin:function(t){this._addClass(e(t.currentTarget),null,"ui-state-focus")},focusout:function(t){this._removeClass(e(t.currentTarget),null,"ui-state-focus")}})},_trigger:function(t,n,r){var i,o,a=this.options[t];if(r=r||{},(n=e.Event(n)).type=(t===this.widgetEventPrefix?t:this.widgetEventPrefix+t).toLowerCase(),n.target=this.element[0],o=n.originalEvent)for(i in o)i in n||(n[i]=o[i]);return this.element.trigger(n,r),!(e.isFunction(a)&&!1===a.apply(this.element[0],[n].concat(r))||n.isDefaultPrevented())}},e.each({show:"fadeIn",hide:"fadeOut"},(function(t,n){e.Widget.prototype["_"+t]=function(r,i,o){var a;"string"==typeof i&&(i={effect:i});var s=i?!0===i||"number"==typeof i?n:i.effect||n:t;"number"==typeof(i=i||{})&&(i={duration:i}),a=!e.isEmptyObject(i),i.complete=o,i.delay&&r.delay(i.delay),a&&e.effects&&e.effects.effect[s]?r[t](i):s!==t&&r[s]?r[s](i.duration,i.easing,o):r.queue((function(n){e(this)[t](),o&&o.call(r[0]),n()}))}})),e.widget})?r.apply(t,i):r)||(e.exports=o)},6177:function(e,t,n){var r,i,o;i=[n(3609),n(1870),n(5592),n(6891)],void 0===(o="function"==typeof(r=function(e){var t=!1;return e(document).on("mouseup",(function(){t=!1})),e.widget("ui.mouse",{version:"1.12.1",options:{cancel:"input, textarea, button, select, option",distance:1,delay:0},_mouseInit:function(){var t=this;this.element.on("mousedown."+this.widgetName,(function(e){return t._mouseDown(e)})).on("click."+this.widgetName,(function(n){if(!0===e.data(n.target,t.widgetName+".preventClickEvent"))return e.removeData(n.target,t.widgetName+".preventClickEvent"),n.stopImmediatePropagation(),!1})),this.started=!1},_mouseDestroy:function(){this.element.off("."+this.widgetName),this._mouseMoveDelegate&&this.document.off("mousemove."+this.widgetName,this._mouseMoveDelegate).off("mouseup."+this.widgetName,this._mouseUpDelegate)},_mouseDown:function(n){if(!t){this._mouseMoved=!1,this._mouseStarted&&this._mouseUp(n),this._mouseDownEvent=n;var r=this,i=1===n.which,o=!("string"!=typeof this.options.cancel||!n.target.nodeName)&&e(n.target).closest(this.options.cancel).length;return!(i&&!o&&this._mouseCapture(n)&&(this.mouseDelayMet=!this.options.delay,this.mouseDelayMet||(this._mouseDelayTimer=setTimeout((function(){r.mouseDelayMet=!0}),this.options.delay)),this._mouseDistanceMet(n)&&this._mouseDelayMet(n)&&(this._mouseStarted=!1!==this._mouseStart(n),!this._mouseStarted)?(n.preventDefault(),0):(!0===e.data(n.target,this.widgetName+".preventClickEvent")&&e.removeData(n.target,this.widgetName+".preventClickEvent"),this._mouseMoveDelegate=function(e){return r._mouseMove(e)},this._mouseUpDelegate=function(e){return r._mouseUp(e)},this.document.on("mousemove."+this.widgetName,this._mouseMoveDelegate).on("mouseup."+this.widgetName,this._mouseUpDelegate),n.preventDefault(),t=!0,0)))}},_mouseMove:function(t){if(this._mouseMoved){if(e.ui.ie&&(!document.documentMode||document.documentMode<9)&&!t.button)return this._mouseUp(t);if(!t.which)if(t.originalEvent.altKey||t.originalEvent.ctrlKey||t.originalEvent.metaKey||t.originalEvent.shiftKey)this.ignoreMissingWhich=!0;else if(!this.ignoreMissingWhich)return this._mouseUp(t)}return(t.which||t.button)&&(this._mouseMoved=!0),this._mouseStarted?(this._mouseDrag(t),t.preventDefault()):(this._mouseDistanceMet(t)&&this._mouseDelayMet(t)&&(this._mouseStarted=!1!==this._mouseStart(this._mouseDownEvent,t),this._mouseStarted?this._mouseDrag(t):this._mouseUp(t)),!this._mouseStarted)},_mouseUp:function(n){this.document.off("mousemove."+this.widgetName,this._mouseMoveDelegate).off("mouseup."+this.widgetName,this._mouseUpDelegate),this._mouseStarted&&(this._mouseStarted=!1,n.target===this._mouseDownEvent.target&&e.data(n.target,this.widgetName+".preventClickEvent",!0),this._mouseStop(n)),this._mouseDelayTimer&&(clearTimeout(this._mouseDelayTimer),delete this._mouseDelayTimer),this.ignoreMissingWhich=!1,t=!1,n.preventDefault()},_mouseDistanceMet:function(e){return Math.max(Math.abs(this._mouseDownEvent.pageX-e.pageX),Math.abs(this._mouseDownEvent.pageY-e.pageY))>=this.options.distance},_mouseDelayMet:function(){return this.mouseDelayMet},_mouseStart:function(){},_mouseDrag:function(){},_mouseStop:function(){},_mouseCapture:function(){return!0}})})?r.apply(t,i):r)||(e.exports=o)},6227:function(e,t,n){var r,i,o;i=[n(3609),n(6177),n(7053),n(5592),n(6891)],void 0===(o="function"==typeof(r=function(e){return e.widget("ui.slider",e.ui.mouse,{version:"1.12.1",widgetEventPrefix:"slide",options:{animate:!1,classes:{"ui-slider":"ui-corner-all","ui-slider-handle":"ui-corner-all","ui-slider-range":"ui-corner-all ui-widget-header"},distance:0,max:100,min:0,orientation:"horizontal",range:!1,step:1,value:0,values:null,change:null,slide:null,start:null,stop:null},numPages:5,_create:function(){this._keySliding=!1,this._mouseSliding=!1,this._animateOff=!0,this._handleIndex=null,this._detectOrientation(),this._mouseInit(),this._calculateNewMax(),this._addClass("ui-slider ui-slider-"+this.orientation,"ui-widget ui-widget-content"),this._refresh(),this._animateOff=!1},_refresh:function(){this._createRange(),this._createHandles(),this._setupEvents(),this._refreshValue()},_createHandles:function(){var t,n,r=this.options,i=this.element.find(".ui-slider-handle"),o=[];for(n=r.values&&r.values.length||1,i.length>n&&(i.slice(n).remove(),i=i.slice(0,n)),t=i.length;t<n;t++)o.push("<span tabindex='0'></span>");this.handles=i.add(e(o.join("")).appendTo(this.element)),this._addClass(this.handles,"ui-slider-handle","ui-state-default"),this.handle=this.handles.eq(0),this.handles.each((function(t){e(this).data("ui-slider-handle-index",t).attr("tabIndex",0)}))},_createRange:function(){var t=this.options;t.range?(!0===t.range&&(t.values?t.values.length&&2!==t.values.length?t.values=[t.values[0],t.values[0]]:e.isArray(t.values)&&(t.values=t.values.slice(0)):t.values=[this._valueMin(),this._valueMin()]),this.range&&this.range.length?(this._removeClass(this.range,"ui-slider-range-min 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n=Math.abs(r-c.values(t));(i>n||i===n&&(t===c._lastChangedValue||c.values(t)===l.min))&&(i=n,o=e(this),a=t)})),!1!==this._start(t,a)&&(this._mouseSliding=!0,this._handleIndex=a,this._addClass(o,null,"ui-state-active"),o.trigger("focus"),s=o.offset(),u=!e(t.target).parents().addBack().is(".ui-slider-handle"),this._clickOffset=u?{left:0,top:0}:{left:t.pageX-s.left-o.width()/2,top:t.pageY-s.top-o.height()/2-(parseInt(o.css("borderTopWidth"),10)||0)-(parseInt(o.css("borderBottomWidth"),10)||0)+(parseInt(o.css("marginTop"),10)||0)},this.handles.hasClass("ui-state-hover")||this._slide(t,a,r),this._animateOff=!0,!0))},_mouseStart:function(){return!0},_mouseDrag:function(e){var t={x:e.pageX,y:e.pageY},n=this._normValueFromMouse(t);return this._slide(e,this._handleIndex,n),!1},_mouseStop:function(e){return this._removeClass(this.handles,null,"ui-state-active"),this._mouseSliding=!1,this._stop(e,this._handleIndex),this._change(e,this._handleIndex),this._handleIndex=null,this._clickOffset=null,this._animateOff=!1,!1},_detectOrientation:function(){this.orientation="vertical"===this.options.orientation?"vertical":"horizontal"},_normValueFromMouse:function(e){var t,n,r,i,o;return"horizontal"===this.orientation?(t=this.elementSize.width,n=e.x-this.elementOffset.left-(this._clickOffset?this._clickOffset.left:0)):(t=this.elementSize.height,n=e.y-this.elementOffset.top-(this._clickOffset?this._clickOffset.top:0)),(r=n/t)>1&&(r=1),r<0&&(r=0),"vertical"===this.orientation&&(r=1-r),i=this._valueMax()-this._valueMin(),o=this._valueMin()+r*i,this._trimAlignValue(o)},_uiHash:function(e,t,n){var r={handle:this.handles[e],handleIndex:e,value:void 0!==t?t:this.value()};return this._hasMultipleValues()&&(r.value=void 0!==t?t:this.values(e),r.values=n||this.values()),r},_hasMultipleValues:function(){return this.options.values&&this.options.values.length},_start:function(e,t){return this._trigger("start",e,this._uiHash(t))},_slide:function(e,t,n){var r,i=this.value(),o=this.values();this._hasMultipleValues()&&(r=this.values(t?0:1),i=this.values(t),2===this.options.values.length&&!0===this.options.range&&(n=0===t?Math.min(r,n):Math.max(r,n)),o[t]=n),n!==i&&!1!==this._trigger("slide",e,this._uiHash(t,n,o))&&(this._hasMultipleValues()?this.values(t,n):this.value(n))},_stop:function(e,t){this._trigger("stop",e,this._uiHash(t))},_change:function(e,t){this._keySliding||this._mouseSliding||(this._lastChangedValue=t,this._trigger("change",e,this._uiHash(t)))},value:function(e){return arguments.length?(this.options.value=this._trimAlignValue(e),this._refreshValue(),void this._change(null,0)):this._value()},values:function(t,n){var r,i,o;if(arguments.length>1)return this.options.values[t]=this._trimAlignValue(n),this._refreshValue(),void this._change(null,t);if(!arguments.length)return this._values();if(!e.isArray(arguments[0]))return this._hasMultipleValues()?this._values(t):this.value();for(r=this.options.values,i=arguments[0],o=0;o<r.length;o+=1)r[o]=this._trimAlignValue(i[o]),this._change(null,o);this._refreshValue()},_setOption:function(t,n){var r,i=0;switch("range"===t&&!0===this.options.range&&("min"===n?(this.options.value=this._values(0),this.options.values=null):"max"===n&&(this.options.value=this._values(this.options.values.length-1),this.options.values=null)),e.isArray(this.options.values)&&(i=this.options.values.length),this._super(t,n),t){case"orientation":this._detectOrientation(),this._removeClass("ui-slider-horizontal 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n}return[]},_trimAlignValue:function(e){if(e<=this._valueMin())return this._valueMin();if(e>=this._valueMax())return this._valueMax();var t=this.options.step>0?this.options.step:1,n=(e-this._valueMin())%t,r=e-n;return 2*Math.abs(n)>=t&&(r+=n>0?t:-t),parseFloat(r.toFixed(5))},_calculateNewMax:function(){var e=this.options.max,t=this._valueMin(),n=this.options.step;(e=Math.round((e-t)/n)*n+t)>this.options.max&&(e-=n),this.max=parseFloat(e.toFixed(this._precision()))},_precision:function(){var e=this._precisionOf(this.options.step);return null!==this.options.min&&(e=Math.max(e,this._precisionOf(this.options.min))),e},_precisionOf:function(e){var t=e.toString(),n=t.indexOf(".");return-1===n?0:t.length-n-1},_valueMin:function(){return this.options.min},_valueMax:function(){return this.max},_refreshRange:function(e){"vertical"===e&&this.range.css({width:"",left:""}),"horizontal"===e&&this.range.css({height:"",bottom:""})},_refreshValue:function(){var t,n,r,i,o,a=this.options.range,s=this.options,u=this,c=!this._animateOff&&s.animate,l={};this._hasMultipleValues()?this.handles.each((function(r){n=(u.values(r)-u._valueMin())/(u._valueMax()-u._valueMin())*100,l["horizontal"===u.orientation?"left":"bottom"]=n+"%",e(this).stop(1,1)[c?"animate":"css"](l,s.animate),!0===u.options.range&&("horizontal"===u.orientation?(0===r&&u.range.stop(1,1)[c?"animate":"css"]({left:n+"%"},s.animate),1===r&&u.range[c?"animate":"css"]({width:n-t+"%"},{queue:!1,duration:s.animate})):(0===r&&u.range.stop(1,1)[c?"animate":"css"]({bottom:n+"%"},s.animate),1===r&&u.range[c?"animate":"css"]({height:n-t+"%"},{queue:!1,duration:s.animate}))),t=n})):(r=this.value(),i=this._valueMin(),o=this._valueMax(),n=o!==i?(r-i)/(o-i)*100:0,l["horizontal"===this.orientation?"left":"bottom"]=n+"%",this.handle.stop(1,1)[c?"animate":"css"](l,s.animate),"min"===a&&"horizontal"===this.orientation&&this.range.stop(1,1)[c?"animate":"css"]({width:n+"%"},s.animate),"max"===a&&"horizontal"===this.orientation&&this.range.stop(1,1)[c?"animate":"css"]({width:100-n+"%"},s.animate),"min"===a&&"vertical"===this.orientation&&this.range.stop(1,1)[c?"animate":"css"]({height:n+"%"},s.animate),"max"===a&&"vertical"===this.orientation&&this.range.stop(1,1)[c?"animate":"css"]({height:100-n+"%"},s.animate))},_handleEvents:{keydown:function(t){var 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t=[];if("n"==e.slice(0,1))try{var n=e.slice(1,e.length),r=parseInt(n);return t.push(r),t}catch(e){}for(var i=0;i<this.getNumLeafs();i++)this.getPageNum(i)==e&&t.push(i);return t}},{key:"getPageName",value:function(e){return"Page "+this.getPageNum(e)}},{key:"getNumLeafs",value:function(){return void 0!==this.br.numLeafs?this.br.numLeafs:this._getDataFlattened().length}},{key:"getPageWidth",value:function(e){return this.getPageProp(e,"width")}},{key:"getPageHeight",value:function(e){return this.getPageProp(e,"height")}},{key:"getPageURI",value:function(e,t,n){return this.getPageProp(e,"viewable",!0)?this.getPageProp(e,"uri"):"/bookreader/static/preview-default.png"}},{key:"getPageSide",value:function(e){return this.getPageProp(e,"pageSide")||(e%2==0?"R":"L")}},{key:"getPageNum",value:function(e){var t=this.getPageProp(e,"pageNum");return void 0===t?"n".concat(e):t}},{key:"getPageProp",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:void 0;return 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t=(e+1)*this.br.thumbPadding,n=(this.br.refs.$brPageViewEl.width()-t)/(e+.5),r=Math.floor(n);return r>0?r:100}},{key:"prepare",value:function(){this.br.refs.$brContainer.empty(),this.br.refs.$brContainer.css({overflowY:"scroll",overflowX:"auto"}),this.br.refs.$brPageViewEl=St("<div class='BRpageview'></div>"),this.br.refs.$brContainer.append(this.br.refs.$brPageViewEl),this.dragScrollable=this.dragScrollable||new Ie(this.br.refs.$brContainer[0],{preventDefault:!0}),this.br.bindGestures(this.br.refs.$brContainer),this.br.thumbWidth=this.getThumbnailWidth(this.br.thumbColumns),this.br.reduce=this.book.getPageWidth(0)/this.br.thumbWidth,this.br.displayedRows=[],this.drawLeafs(this.br.currentIndex()),this.br.updateBrClasses()}},{key:"jumpToIndex",value:function(e){for(var t=this,n=Math.floor,r=this.book,i=this.br.refs.$brContainer.prop("scrollWidth")-20,o=this.br.thumbWidth,a=0,s=0,u=0,c=0,l=0,h=0;h<=e;h++){s+(o+this.br.thumbPadding)>i&&(s=0,c=0,l=0);var 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n=Object.prototype.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?$t(e,t):void 0}}(e)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function $t(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=new Array(t);n<t;n++)r[n]=e[n];return r}function Lt(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function Dt(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}var Nt=function(){function e(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},r=n.useSrcSet,i=void 0!==r&&r,o=n.reduceSet,a=void 0===o?At:o;Lt(this,e),this.book=t,this.useSrcSet=i,this.reduceSet=a,this.cache={},this.defaultScale=8}var t,n;return t=e,(n=[{key:"image",value:function(e,t){var n=(this.cache[e]||[]).filter((function(e){return e.loaded&&e.reduce<=t}));if(n.length){var r=Math.max.apply(Math,jt(n.map((function(e){return e.reduce}))));return this._serveImageElement(e,r)}return this._serveImageElement(e,t)}},{key:"imageLoaded",value:function(e,t){var n,r,i=null===(n=this.cache[e])||void 0===n?void 0:n.find((function(e){return e.reduce<=t}));return null!==(r=null==i?void 0:i.loaded)&&void 0!==r&&r}},{key:"getBestLoadedReduce",value:function(e){var t,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1/0,r=(null===(t=this.cache[e])||void 0===t?void 0:t.filter((function(e){return e.loaded})))||[];if(!r.length)return null;var i=r.filter((function(e){return e.reduce>=n}));if(i.length)return Math.min.apply(Math,jt(i.map((function(e){return e.reduce}))));var o=r.filter((function(e){return e.reduce<n}));return Math.max.apply(Math,jt(o.map((function(e){return e.reduce}))))}},{key:"_serveImageElement",value:function(e,t){var n,r=this.reduceSet.floor(t),i=null===(n=this.cache[e])||void 0===n?void 0:n.find((function(e){return e.reduce==r}));i||(i={reduce:r,loaded:!1},(this.cache[e]||(this.cache[e]=[])).push(i));var o=this.book.getPage(e),a=Mt("<img />",{class:"BRpageimage",alt:"Book page image",src:o.getURI(r,0)}).data("reduce",r);return this.useSrcSet&&a.attr("srcset",o.getURISrcSet(r)),i.loaded||a.one("load",(function(){return i.loaded=!0})),a}}])&&Dt(t.prototype,n),Object.defineProperty(t,"prototype",{writable:!1}),e}(),Bt=n(9860),Ut=n(3609),Ft=n(3609);function zt(e,t,n,r,i,o,a){try{var s=e[o](a),u=s.value}catch(e){return void n(e)}s.done?t(u):Promise.resolve(u).then(r,i)}function Wt(e){return function(){var t=this,n=arguments;return new Promise((function(r,i){var o=e.apply(t,n);function a(e){zt(o,r,i,a,s,"next",e)}function s(e){zt(o,r,i,a,s,"throw",e)}a(void 0)}))}}function Ht(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,r=new Array(t);n<t;n++)r[n]=e[n];return r}function Vt(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=Ft.extend(!0,{},Vt.defaultOptions,e,Vt.optionOverrides);this.setup(t)}function qt(e,t,n){var r=arguments.length>3&&void 0!==arguments[3]?arguments[3]:n,o=function(e){return e.br},a=function(e){return e._overrideable[t]};i(e,n,o,Vt,r,a)}-1!=location.toString().indexOf("_debugShowConsole=true")&&Ut((function(){return(new b.E).init()})),Vt.version="5.0.0-61",Vt.constMode1up=1,Vt.constMode2up=2,Vt.constModeThumb=3,Vt.imageCache=null,Vt.constNavAnimationDuration=300,Vt.constResizeAnimationDuration=100,Vt.eventNames=o,Vt.defaultOptions=m,Vt.optionOverrides={},Vt.prototype.setup=function(e){this.options=e,this.numLeafs=void 0,this.enableSearch=!1,this.viewModeOrder=[],this.suppressFragmentChange=!1,this.animationFinishedCallback=null,this.constMode1up=Vt.constMode1up,this.constMode2up=Vt.constMode2up,this.constModeThumb=Vt.constModeThumb,this.reduce=8,this.defaults=e.defaults,this.padding=e.padding,this.reduceSet=It[e.reduceSet],this.reduceSet||(console.warn("Invalid reduceSet ".concat(e.reduceSet,". Ignoring.")),this.reduceSet=It[m.reduceSet]),this.mode=null,this.prevReadMode=null,this.ui=e.ui,this.uiAutoHide=e.uiAutoHide,this.thumbWidth=100,this.thumbRowBuffer=e.thumbRowBuffer,this.thumbColumns=e.thumbColumns,this.thumbMaxLoading=e.thumbMaxLoading,this.thumbPadding=e.thumbPadding,this.displayedRows=[],this.displayedIndices=[],this.animating=!1,this.flipSpeed="number"==typeof e.flipSpeed?e.flipSpeed:{fast:200,slow:600}[e.flipSpeed]||400,this.flipDelay=e.flipDelay,this.firstIndex=null,this.isFullscreenActive=e.startFullscreen||!1,this.lastScroll=null,this.showLogo=e.showLogo,this.logoURL=e.logoURL,this.imagesBaseURL=e.imagesBaseURL,this.reductionFactors=e.reductionFactors,this.onePage=e.onePage,this.twoPage=e.twoPage,this.onePageMinBreakpoint=e.onePageMinBreakpoint,this.bookTitle=e.bookTitle,this.bookUrl=e.bookUrl,this.bookUrlText=e.bookUrlText,this.bookUrlTitle=e.bookUrlTitle,this.titleLeaf=e.titleLeaf,this.metadata=e.metadata,this.thumbnail=e.thumbnail,this.bookUrlMoreInfo=e.bookUrlMoreInfo,this.enableExperimentalControls=e.enableExperimentalControls,this.el=e.el,this.pageProgression=e.pageProgression,this.protected=e.protected,this.getEmbedCode=e.getEmbedCode,this.popup=null,this.data=e.data,this.refs={},this.book=new O(this),e.getNumLeafs&&(this.book.getNumLeafs=e.getNumLeafs.bind(this)),e.getPageWidth&&(this.book.getPageWidth=e.getPageWidth.bind(this)),e.getPageHeight&&(this.book.getPageHeight=e.getPageHeight.bind(this)),e.getPageURI&&(this.book.getPageURI=e.getPageURI.bind(this)),e.getPageSide&&(this.book.getPageSide=e.getPageSide.bind(this)),e.getPageNum&&(this.book.getPageNum=e.getPageNum.bind(this)),e.getPageProp&&(this.book.getPageProp=e.getPageProp.bind(this)),e.getSpreadIndices&&(this.book.getSpreadIndices=e.getSpreadIndices.bind(this)),e.leafNumToIndex&&(this.book.leafNumToIndex=e.leafNumToIndex.bind(this)),this._components={navbar:new u(this),toolbar:new x(this)},this._modes={mode1Up:new Ve(this,this.book),mode2Up:new Pt(this,this.book),modeThumb:new Rt(this,this.book)},this._overrideable={book:this.book,"_components.navbar":this._components.navbar,"_components.toolbar":this._components.toolbar,"_modes.mode1Up":this._modes.mode1Up,"_modes.mode2Up":this._modes.mode2Up,"_modes.modeThumb":this._modes.modeThumb},this.imageCache=new Nt(this.book,{useSrcSet:this.options.useSrcSet,reduceSet:this.reduceSet}),this.hasKeyFocus=!0},Vt.prototype.getActivePageContainerElements=function(){var e=Object.values(this._modes.mode2Up.mode2UpLit.pageContainerCache).map((function(e){return e.$container[0]})).concat(Object.values(this._modes.mode1Up.mode1UpLit.pageContainerCache).map((function(e){return e.$container[0]})));return this.mode==this.constModeThumb&&(e=e.concat(this.$(".BRpagecontainer").toArray())),e},Vt.prototype.getActivePageContainerElementsForIndex=function(e){var t,n,r,i,o;return[null===(t=this._modes.mode2Up.mode2UpLit.pageContainerCache[e])||void 0===t||null===(n=t.$container)||void 0===n?void 0:n[0],null===(r=this._modes.mode1Up.mode1UpLit.pageContainerCache[e])||void 0===r||null===(i=r.$container)||void 0===i?void 0:i[0]].concat((o=this.mode==this.constModeThumb?this.$(".pagediv".concat(e)).toArray():[],function(e){if(Array.isArray(e))return Ht(e)}(o)||function(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}(o)||function(e,t){if(e){if("string"==typeof e)return Ht(e,t);var n=Object.prototype.toString.call(e).slice(8,-1);return"Object"===n&&e.constructor&&(n=e.constructor.name),"Map"===n||"Set"===n?Array.from(e):"Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)?Ht(e,t):void 0}}(o)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}())).filter((function(e){return e}))},Object.defineProperty(Vt.prototype,"activeMode",{get:function(){return{1:this._modes.mode1Up,2:this._modes.mode2Up,3:this._modes.modeThumb}[this.mode]}}),Vt.util=r,Vt.prototype.extendParams=function(e,t){var n=Ut.extend({},t);if(void 0!==n.page){var r=this.book.parsePageString(n.page);isNaN(r)||(n.index=r),delete n.page}Ut.extend(e,n)},Vt.prototype.initParams=function(){var e={init:!0,pageFound:!1,fragmentChange:!1};if(void 0!==this.titleLeaf&&this.book.getNumLeafs()>2?e.index=this.book.leafNumToIndex(this.titleLeaf):e.index=0,this.defaults){var t=this.paramsFromFragment(this.defaults);void 0!==t.page&&(e.pageFound=!0),this.extendParams(e,t)}if(this.options.enablePageResume){var n=this.getResumeValue();null!==n&&(e.index!==n&&(e.fragmentChange=!0),e.index=n)}if(this.options.enableUrlPlugin){var i=this.paramsFromFragment(this.urlReadFragment());!Object.keys(i).length&&this.urlReadHashFragment()&&"history"===this.options.urlMode&&(i=this.paramsFromFragment(this.urlReadHashFragment())),Object.keys(i).length&&(void 0!==i.page&&(e.pageFound=!0),this.extendParams(e,i),e.fragmentChange=!0)}if(this.options.enableSearch&&(this.options.goToFirstResult=!e.pageFound,!this.options.initialSearchTerm))if(e.search)this.options.initialSearchTerm=e.search,this.searchTerm=e.search;else{var o=new URLSearchParams(this.readQueryString()).get("q");o&&(this.options.initialSearchTerm=r.decodeURIComponentPlus(o))}return this.suppressFragmentChange=!e.fragmentChange,e},Vt.prototype.getLocationSearch=function(){return window.location.search},Vt.prototype.getLocationHash=function(){return window.location.hash},Vt.prototype.readQueryString=function(){var e=this.getLocationSearch();if(e)return e;var t=this.getLocationHash(),n=t.search(/\?\w+=/);return n>-1?t.slice(n):""},Vt.prototype.getInitialMode=function(e){var t,n=Ut(window).width(),r=n&&n<=this.onePageMinBreakpoint;if(t=e.mode?e.mode:r?this.constMode1up:this.constMode2up,this.canSwitchToMode(t)||(t=this.constMode1up),this.options.defaults)try{t=function(e){var t={"mode/1up":1,"mode/2up":2,"mode/thumb":3};if(!(e in t))throw new y("Invalid mode string: ".concat(e));return t[e]}(this.options.defaults)}catch(e){}return t},Vt.prototype.init=function(){this.init.initComplete=!1,this.pageScale=this.reduce;var e=this.initParams();this.firstIndex=e.index?e.index:0,this.isTouchDevice=!!("ontouchstart"in window)||!!("msmaxtouchpoints"in window.navigator),this.refs.$br=Ut(this.el).empty().removeClass().addClass("ui-"+this.ui).addClass("br-ui-"+this.ui).addClass("BookReader"),this.isTouchDevice?this.refs.$br.addClass("touch"):this.refs.$br.addClass("no-touch"),this.refs.$brContainer=Ut("<div class='BRcontainer' dir='ltr'></div>"),this.refs.$br.append(this.refs.$brContainer),e.mode=this.getInitialMode(e),this.mode=e.mode,this.options.showToolbar&&this.initToolbar(this.mode,this.ui),this.options.showNavbar&&this.initNavbar(),this._components.navbar.switchNavbarControls(),this.resizeBRcontainer(),this.updateFromParams(e),this.initUIStrings(),this.bindNavigationHandlers(),this.setupKeyListeners(),this.lastScroll=(new Date).getTime(),this.refs.$brContainer.on("scroll",this,(function(e){e.data.lastScroll=(new Date).getTime(),e.data.constModeThumb==e.data.mode&&e.data.drawLeafsThrottled()})),this.options.autoResize&&(Ut(window).on("resize",this,(function(e){e.data.resize()})),Ut(window).on("orientationchange",this,function(e){e.data.resize()}.bind(this))),this.protected&&this.$(".BRicon.share").hide(),this.options.initialSearchTerm||(this.suppressFragmentChange=!1),this.options.startFullscreen&&this.enterFullscreen(!0),this.init.initComplete=!0,this.trigger(Vt.eventNames.PostInit)},Vt.prototype.trigger=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this,n="BookReader:"+e;r.polyfillCustomEvent(window),window.dispatchEvent(new CustomEvent(n,{bubbles:!0,composed:!0,detail:{props:t}})),Ut(document).trigger(n,t)},Vt.prototype.bind=function(e,t){Ut(document).on("BookReader:"+e,t)},Vt.prototype.unbind=function(e,t){Ut(document).off("BookReader:"+e,t)},Vt.prototype.resize=function(){this.init.initComplete&&(this.resizeBRcontainer(),this._components.navbar.switchNavbarControls(),this.constMode1up==this.mode?"none"!=this.onePage.autofit?(this._modes.mode1Up.resizePageView(),this.centerPageView()):(this.centerPageView(),this.displayedIndices=[],this.drawLeafsThrottled()):this.constModeThumb==this.mode?this._modes.modeThumb.prepare():this._modes.mode2Up.resizePageView(),this.trigger(Vt.eventNames.resize))},Vt.prototype.setupKeyListeners=function(){var e=this;window.IntersectionObserver&&new IntersectionObserver((function(t){t.forEach((function(t){0===t.intersectionRatio?e.hasKeyFocus=!1:e.hasKeyFocus=!0}))}),{root:null,rootMargin:"0px",threshold:[0,.05,1]}).observe(this.refs.$br[0]),document.addEventListener("keydown",(function(t){if(e.hasKeyFocus&&!(t.getModifierState("Control")||t.getModifierState("Alt")||t.getModifierState("Meta")||t.getModifierState("Win")||r.isInputActive()))switch(t.key){case"Home":t.preventDefault(),e.first();break;case"End":t.preventDefault(),e.last();break;case"ArrowDown":case"PageDown":case"Down":e.constMode2up===e.mode&&(t.preventDefault(),e.next());break;case"ArrowUp":case"PageUp":case"Up":e.constMode2up===e.mode&&(t.preventDefault(),e.prev());break;case"ArrowLeft":case"Left":e.constModeThumb!=e.mode&&(t.preventDefault(),e.left());break;case"ArrowRight":case"Right":e.constModeThumb!=e.mode&&(t.preventDefault(),e.right());break;case"-":case"Subtract":t.preventDefault(),e.zoom(-1);break;case"+":case"=":case"Add":t.preventDefault(),e.zoom(1);break;case"F":case"f":t.preventDefault(),e.toggleFullscreen()}}))},Vt.prototype.drawLeafs=function(){this.constMode1up!=this.mode&&this.activeMode.drawLeafs()},Vt.prototype._createPageContainer=function(e){return new Bt._z(this.book.getPage(e,!1),{isProtected:this.protected,imageCache:this.imageCache,loadingImage:this.imagesBaseURL+"loading.gif"})},Vt.prototype.bindGestures=function(e){var t=this,n=1;e.unbind("touchmove").bind("touchmove",(function(e){e.originalEvent.cancelable&&(n=e.originalEvent.touches.length),e.stopPropagation()})),e.unbind("gesturechange").bind("gesturechange",(function(e){e.preventDefault(),2!==n||(new Date).getTime()-t.lastScroll<500||(e.originalEvent.scale>1.5?t.zoom(1):e.originalEvent.scale<.6&&t.zoom(-1))}))},Vt.prototype.drawLeafsThrottled=r.throttle(Vt.prototype.drawLeafs,250),Vt.prototype.zoom=function(e){var t;1==e?this.activeMode.zoom("in"):this.activeMode.zoom("out"),null===(t=this.textSelectionPlugin)||void 0===t||t.stopPageFlip(this.refs.$brContainer)},Vt.prototype.resizeBRcontainer=function(e){e?this.refs.$brContainer.animate({top:this.getToolBarHeight(),bottom:this.getFooterHeight()},this.constResizeAnimationDuration,"linear"):this.refs.$brContainer.css({top:this.getToolBarHeight(),bottom:this.getFooterHeight()})},Vt.prototype.centerPageView=function(){var e=this.refs.$brContainer.prop("scrollWidth"),t=this.refs.$brContainer.prop("clientWidth");e>t&&this.refs.$brContainer.prop("scrollLeft",(e-t)/2)},Vt.prototype.quantizeReduce=function(e,t){for(var n=t[0].reduce,r=Math.abs(e-n),i=1;i<t.length;i++){var o=Math.abs(e-t[i].reduce);o<r&&(r=o,n=t[i].reduce)}return n},Vt.prototype.nextReduce=function(e,t,n){if("in"===t){for(var r=0,i=1;i<n.length;i++)n[i].reduce<e&&(r=i);return n[r]}if("out"===t){for(var o=n.length-1,a=o,s=o;s>=0;s--)n[s].reduce>e&&(a=s);return n[a]}if("auto"===t){var u=n.find((function(e){return"auto"==e.autofit}));if(u)return u;for(var c=n.filter((function(e){var t=e.autofit;return"height"==t||"width"==t})),l=null,h=0;h<c.length;h++)(null===l||l.reduce<c[h].reduce)&&(l=c[h]);if(l)return l}else if("height"===t||"width"===t){var f=n.find((function(e){return e.autofit==t}));if(f)return f}return n[0]},Vt.prototype._reduceSort=function(e,t){return e.reduce-t.reduce},Vt.prototype.jumpToPage=function(e){var t=this.book.parsePageString(e);return void 0!==t&&(this.jumpToIndex(t),!0)},Vt.prototype._isIndexDisplayed=function(e){return this.displayedIndices?this.displayedIndices.includes(e):this.currentIndex()==e},Vt.prototype.jumpToIndex=function(e,t,n,r){var i=this.book.getPage(e);if(!i.isViewable&&i.unviewablesStart!=i.index){var o=this._isIndexDisplayed(i.unviewablesStart)?i.findNext({combineConsecutiveUnviewables:!0}).index:i.unviewablesStart;return this.jumpToIndex(o,t,n,r)}this.trigger(Vt.eventNames.stop),this.activeMode.jumpToIndex(e,t,n,r)},Vt.prototype.getPrevReadMode=function(e){return e===Vt.constMode1up||e===Vt.constMode2up?e:null===this.prevReadMode?Vt.constMode1up:void 0},Vt.prototype.switchMode=function(e){var t,n,r,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},o=i.suppressFragmentChange,a=void 0!==o&&o;if(i.init,i.pageFound,this.init.initComplete){if(e===this.mode)return;if(!this.canSwitchToMode(e))return}this.trigger(Vt.eventNames.stop),this.prevReadMode=this.getPrevReadMode(this.mode),this.mode!=e&&(null===(n=(r=this.activeMode).unprepare)||void 0===n||n.call(r)),this.mode=e,this.pageScale!==this.reduce&&(this.reduce=this.pageScale),this.constMode1up==e?this._modes.mode1Up.prepare():this.constModeThumb==e?(this.reduce=this.quantizeReduce(this.reduce,this.reductionFactors),this._modes.modeThumb.prepare()):this._modes.mode2Up.prepare(),this.suppressFragmentChange||a||this.trigger(Vt.eventNames.fragmentChange);var s=e+"PageViewSelected";this.trigger(Vt.eventNames[s]),null===(t=this.textSelectionPlugin)||void 0===t||t.stopPageFlip(this.refs.$brContainer)},Vt.prototype.updateBrClasses=function(){var e={};e[this.constMode1up]="BRmode1up",e[this.constMode2up]="BRmode2up",e[this.constModeThumb]="BRmodeThumb",this.refs.$br.removeClass("BRmode1up BRmode2up BRmodeThumb").addClass(e[this.mode]),this.isFullscreen()?(this.refs.$br.addClass("fullscreenActive"),Ut(document.body).addClass("BRfullscreenActive")):(this.refs.$br.removeClass("fullscreenActive"),Ut(document.body).removeClass("BRfullscreenActive"))},Vt.prototype.isFullscreen=function(){return this.isFullscreenActive},Vt.prototype.toggleFullscreen=Wt(regeneratorRuntime.mark((function e(){var t,n=arguments;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:if(t=!(n.length>0&&void 0!==n[0])||n[0],!this.isFullscreen()){e.next=6;break}return e.next=4,this.exitFullScreen();case 4:e.next=8;break;case 6:return e.next=8,this.enterFullscreen(t);case 8:case"end":return e.stop()}}),e,this)}))),Vt.prototype.enterFullscreen=Wt(regeneratorRuntime.mark((function e(){var t,n,r,i=this,o=arguments;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:if(n=!(o.length>0&&void 0!==o[0])||o[0],this.refs.$br.addClass("BRfullscreenAnimation"),r=this.currentIndex(),n&&(this._fullscreenCloseHandler=function(e){27===e.keyCode&&i.toggleFullscreen()},Ut(document).on("keyup",this._fullscreenCloseHandler)),Ut(window).width()<=this.onePageMinBreakpoint&&this.switchMode(this.constMode1up),this.isFullscreenActive=!0,this.updateBrClasses(),!(this.activeMode instanceof Ve)){e.next=13;break}return this.activeMode.mode1UpLit.scale=this.activeMode.mode1UpLit.computeDefaultScale(this.book.getPage(r)),this.activeMode.mode1UpLit.requestUpdate(),e.next=13,this.activeMode.mode1UpLit.updateComplete;case 13:return this.jumpToIndex(r),null===(t=this.textSelectionPlugin)||void 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e=[];a.hasClass("BRdn")?(t.refs.$BRtoolbar&&e.push(t.refs.$BRtoolbar.animate({top:-1*t.getToolBarHeight()}).promise()),e.push(t.$(".BRfooter").animate({bottom:-1*t.getFooterHeight()}).promise()),a.addClass("BRup").removeClass("BRdn"),s.addClass("BRdn").removeClass("BRup"),t.$(".BRnavCntlBtm.BRnavCntl").animate({height:"45px"}),t.$(".BRnavCntl").delay(1e3).animate({opacity:.75},1e3)):(t.refs.$BRtoolbar&&e.push(t.refs.$BRtoolbar.animate({top:0}).promise()),e.push(t.$(".BRfooter").animate({bottom:0}).promise()),a.addClass("BRdn").removeClass("BRup"),s.addClass("BRup").removeClass("BRdn"),t.$(".BRnavCntlBtm.BRnavCntl").animate({height:"30px"}),t.$(".BRvavCntl").animate({opacity:1})),Ut.when.apply(Ut,e).done((function(){t.mode==t.constMode2up&&null!=t.twoPage.autofit&&"none"!=t.twoPage.autofit||t.mode==t.constMode1up&&null!=t.onePage.autofit&&"none"!=t.onePage.autofit?t.resize():t.resizeBRcontainer()}))})),a.on("mouseover",(function(){Ut(this).hasClass("BRup")&&t.$(".BRnavCntl").animate({opacity:1},250)})).on("mouseleave",(function(){Ut(this).hasClass("BRup")&&t.$(".BRnavCntl").animate({opacity:.75},250)})),s.on("mouseover",(function(){Ut(this).hasClass("BRdn")&&t.$(".BRnavCntl").animate({opacity:1},250)})).on("mouseleave",(function(){Ut(this).hasClass("BRdn")&&t.$(".BRnavCntl").animate({opacity:.75},250)})),this.initSwipeData(),Ut(document).off("mousemove.navigation",this.el),Ut(document).on("mousemove.navigation",this.el,{br:this},this.navigationMousemoveHandler),Ut(document).off("mousedown.swipe",".BRpageimage"),Ut(document).on("mousedown.swipe",".BRpageimage",{br:this},this.swipeMousedownHandler),this.bindMozTouchHandlers()},Vt.prototype.unbindNavigationHandlers=function(){Ut(document).off("mousemove.navigation",this.el)},Vt.prototype.navigationMousemoveHandler=function(e){if(e.data.br.uiAutoHide){var 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r=Math.abs(n.deltaX),i=Math.abs(n.deltaY),o=Math.min(t.refs.$br.width()/5,80);return r>i&&r>o&&n.deltaT<400&&(n.mightBeSwiping=!1,n.didSwipe=!0,t.mode==t.constMode2up&&(n.deltaX<0?t.right():t.left())),n.deltaT>400&&!n.didSwipe&&n.mightBeDragging&&(n.didDrag=!0,t.refs.$brContainer.scrollTop(t.refs.$brContainer.scrollTop()-e.clientY+n.lastY).scrollLeft(t.refs.$brContainer.scrollLeft()-e.clientX+n.lastX)),n.lastX=e.clientX,n.lastY=e.clientY,e.preventDefault(),e.returnValue=!1,e.cancelBubble=!0,!1}},Vt.prototype.swipeMouseupHandler=function(e){var t=e.data.br._swipe;return t.mightBeSwiping=!1,t.mightBeDragging=!1,Ut(e.target).off("mouseout.swipe").off("mouseup.swipe").off("mousemove.swipe"),!t.didSwipe&&!t.didDrag||(e.preventDefault(),e.returnValue=!1,e.cancelBubble=!0,!1)},Vt.prototype.bindMozTouchHandlers=function(){var e=this;this.refs.$br.on("MozTouchDown",(function(t){this.mode==e.constMode2up&&t.preventDefault()})).on("MozTouchMove",(function(t){this.mode==e.constMode2up&&t.preventDefault()})).on("MozTouchUp",(function(t){this.mode==e.constMode2up&&t.preventDefault()}))},Vt.prototype.navigationIsVisible=function(){return 0==this.refs.$BRtoolbar.position().top},Vt.prototype.setNavigationView=function(e){var t=this.constNavAnimationDuration,n="linear",r=function(){this.constMode2up!==this.mode&&this.resizeBRcontainer(!0),this.trigger(Vt.eventNames.navToggled)}.bind(this),i=0,o=0;e?(i=-1*this.getToolBarHeight(),o=-1*this.getFooterHeight(),this.refs.$BRtoolbar.addClass("js-menu-hide"),this.refs.$BRfooter.addClass("js-menu-hide")):(this.refs.$BRtoolbar.removeClass("js-menu-hide"),this.refs.$BRfooter.removeClass("js-menu-hide")),this.refs.$BRtoolbar.animate({top:i},t,n,r),this.refs.$BRfooter.animate({bottom:o},t,n,r)},Vt.prototype.hideNavigation=function(){this.navigationIsVisible()&&this.setNavigationView(!0)},Vt.prototype.showNavigation=function(){this.navigationIsVisible()||this.setNavigationView()},Vt.prototype.getPageURI=O.prototype.getPageURI,qt(O,"book","getPageURI"),Vt.prototype.updateFromParams=function(e){var t=e.mode,n=void 0===t?0:t,r=e.init,i=void 0!==r&&r,o=e.fragmentChange,a=void 0!==o&&o;n&&this.switchMode(n,{init:i,suppressFragmentChange:!a}),void 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diff --git a/BookReader/plugins/plugin.search.js b/BookReader/plugins/plugin.search.js
index b1ee82a8b..8ffb9ffb9 100644
--- a/BookReader/plugins/plugin.search.js
+++ b/BookReader/plugins/plugin.search.js
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c({br:this,searchCancelledCallback:function(){t._cancelSearch(),t.trigger("SearchCanceled",{term:t.searchTerm,instance:t})}}),this.options.enableSearch&&this.options.initialSearchTerm&&this.search(this.options.initialSearchTerm,{goToFirstResult:this.options.goToFirstResult,suppressFragmentChange:!1})}}(BookReader.prototype.init),BookReader.prototype.buildToolbarElement=function(e){return function(){var t=e.call(this);if(this.enableSearch)return this.searchView.dom.toolbarSearch&&t.find(".BRtoolbarSectionInfo").after(this.searchView.dom.toolbarSearch),t}}(BookReader.prototype.buildToolbarElement),BookReader.prototype._createPageContainer=function(e){return function(t){var r=e.call(this,t);if(this.enableSearch&&r.page&&t in this._searchBoxesByIndex){var n=r.page.index,i=this._searchBoxesByIndex[n];(0,a.Tm)("searchHiliteLayer",i,r.page,r.$container[0],i.map((function(e){return"match-index-".concat(e.matchIndex)})))}return 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e.stop()}}),e,this)}))),BookReader.prototype._cancelSearch=function(){var e;null===(e=this.searchXHR)||void 0===e||e.abort(),this.searchView.clearSearchFieldAndResults(!1),this.searchTerm="",this.searchXHR=null,this.searchCancelled=!0,this.searchResults=[]},BookReader.prototype.cancelSearchRequest=function(){this.searchCancelled=!0,null!==this.searchXHR&&(this._cancelSearch(),this.searchView.toggleSearchPending(),this.trigger("SearchCanceled",{term:this.searchTerm,instance:this}))},BookReader.prototype.BRSearchCallback=function(e,t){var r=this;!function(e,t){var n,a,i=d(e.matches.entries());try{for(i.s();!(n=i.n()).done;){var s=u(n.value,2),o=s[0],c=s[1];c.matchIndex=o,c.displayPageNumber=(a=c.par[0].page,r.book.getPageNum(r.book.leafNumToIndex(a)));var h,l=d(c.par);try{for(l.s();!(h=l.n()).done;){var v,g=d(h.value.boxes);try{for(g.s();!(v=g.n()).done;)v.value.matchIndex=o}catch(e){g.e(e)}finally{g.f()}}}catch(e){l.e(e)}finally{l.f()}}}catch(e){i.e(e)}finally{i.f()}}(e),this.searchResults=e||[],this.updateSearchHilites(),this.removeProgressPopup(),t.goToFirstResult&&this._searchPluginGoToResult(0),this.trigger("SearchCallback",{results:e,options:t,instance:this})},BookReader.prototype.BRSearchCallbackError=function(e){this._BRSearchCallbackError(e)},BookReader.prototype._BRSearchCallbackError=function(e){this.searchResults=e;var t={term:this.searchTerm,instance:this};if(e.error){var r=Object.assign({},t,{results:e});this.trigger("SearchCallbackError",r)}else if(0==e.matches.length){if(!1===e.indexed)return void this.trigger("SearchCallbackBookNotIndexed",t);this.trigger("SearchCallbackEmpty",t)}},BookReader.prototype.updateSearchHilites=function(){var e,t=(null===(e=this.searchResults)||void 0===e?void 0:e.matches)||[],r={};this.removeSearchHilites();var n,i=d(t);try{for(i.s();!(n=i.n()).done;){var s,o=d(n.value.par[0].boxes);try{for(o.s();!(s=o.n()).done;){var c=s.value,h=this.book.leafNumToIndex(c.page);(r[h]||(r[h]=[])).push(c)}}catch(e){o.e(e)}finally{o.f()}}}catch(e){i.e(e)}finally{i.f()}for(var l=0,v=Object.entries(r);l<v.length;l++){var g,p=u(v[l],2),f=p[0],b=p[1],m=parseFloat(f),y=this.book.getPage(m),k=d(this.getActivePageContainerElementsForIndex(m));try{for(k.s();!(g=k.n()).done;){var S=g.value;(0,a.Tm)("searchHiliteLayer",b,y,S,b.map((function(e){return"match-index-".concat(e.matchIndex)})))}}catch(e){k.e(e)}finally{k.f()}}this._searchBoxesByIndex=r},BookReader.prototype.removeSearchHilites=function(){l(this.getActivePageContainerElements()).find(".searchHiliteLayer").remove()},BookReader.prototype._searchPluginGoToResult=function(){var e=f(regeneratorRuntime.mark((function e(t){var r,a,i,s,o,c,h,u,v,g,p,f;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 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20:if(!(f=e.sent).length){e.next=27;break}return f.css("animation","none"),f[0].scrollIntoView({block:this.constMode1up==this.mode||this.isFullscreenActive?"center":"nearest",inline:"center",behavior:c?"smooth":"auto"}),e.next=26,new Promise((function(e){return setTimeout(e,100)}));case 26:f.removeAttr("style");case 27:case"end":return e.stop()}}),e,this)})));return function(t){return e.apply(this,arguments)}}(),BookReader.prototype.removeSearchResults=function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0];this.removeSearchHilites(),this.searchTerm=null,this.searchResults=null,e||this.trigger(BookReader.eventNames.fragmentChange)},BookReader.prototype.searchHighlightVisible=function(){var e=this,t=this.searchResults,r=[];if(null==t)return!1;if(this.constMode2up==this.mode)r=[this.twoPage.currentIndexL,this.twoPage.currentIndexR];else{if(this.constMode1up!=this.mode)return!1;r=[this.currentIndex()]}return t.matches.some((function(t){return 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t=e,(r=[{key:"cacheDOMElements",value:function(){this.dom={},this.dom.toolbarSearch=this.buildToolbarSearch()}},{key:"setQuery",value:function(e){this.br.$('[name="query"]').val(e)}},{key:"emptyMatches",value:function(){this.matches=[]}},{key:"removeResultPins",value:function(){this.br.$(".BRnavpos .BRsearch").remove()}},{key:"clearSearchFieldAndResults",value:function(){var e=!(arguments.length>0&&void 0!==arguments[0])||arguments[0];this.br.removeSearchResults(),this.removeResultPins(),this.emptyMatches(),this.setQuery(""),this.teardownSearchNavigation(),e&&this.br.trigger("SearchResultsCleared")}},{key:"toggleSidebar",value:function(){this.br.trigger("ToggleSearchMenu")}},{key:"renderSearchNavigation",value:function(){var e="BRsearch-navigation";i(".BRnav").before('\n      <div class="'.concat(e,'">\n        <button class="toggle-sidebar">\n          <h4>\n            <span class="icon icon-search"></span> Results\n          </h4>\n        </button>\n        <div class="pagination">\n          <button class="prev" title="Previous result"><span class="icon icon-chevron hflip"></span></button>\n          <span data-id="resultsCount">').concat(this.resultsPosition(),'</span>\n          <button class="next" title="Next result"><span class="icon icon-chevron"></button>\n        </div>\n        <button class="clear" title="Clear search results">\n          <span class="icon icon-close"></span>\n        </button>\n      </div>\n    ')),this.dom.searchNavigation=i(".".concat(e))}},{key:"resultsPosition",value:function(){var e="".concat(this.matches.length," result").concat(1===this.matches.length?"":"s");return~this.currentMatchIndex&&(e="".concat(this.currentMatchIndex+1," / ").concat(this.matches.length)),e}},{key:"bindSearchNavigationEvents",value:function(){if(this.dom.searchNavigation){var 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e.par[0].page===t})))}},{key:"updateResultsPosition",value:function(){this.dom.searchNavigation&&this.dom.searchNavigation.find("[data-id=resultsCount]").text(this.resultsPosition())}},{key:"updateSearchNavigationButtons",value:function(){this.dom.searchNavigation&&(this.dom.searchNavigation.find(".prev").attr("disabled",!this.currentMatchIndex),this.dom.searchNavigation.find(".next").attr("disabled",this.currentMatchIndex+1===this.matches.length))}},{key:"teardownSearchNavigation",value:function(){this.dom.searchNavigation||(this.dom.searchNavigation=i(".BRsearch-navigation")),this.dom.searchNavigation.length&&(this.dom.searchNavigation.off(".searchNavigation").remove(),this.dom.searchNavigation=null,this.br.resize())}},{key:"setCurrentMatchIndex",value:function(){var e;this.br.mode!==this.br.constModeThumb?(e=this.br.mode===this.br.constMode2up?this.find2upMatchingSearchResult():this.find1upMatchingSearchResult(),this.currentMatchIndex=this.matches.indexOf(e)):this.currentMatchIndex=-1}},{key:"find1upMatchingSearchResult",value:function(){var e=this;return this.matches.find((function(t){return e.br.currentIndex()===t.par[0].page-1}))}},{key:"find2upMatchingSearchResult",value:function(){var e=this;return this.matches.find((function(t){return e.br._isIndexDisplayed(t.par[0].page-1)}))}},{key:"updateSearchNavigation",value:function(){this.matches.length&&(this.setCurrentMatchIndex(),this.updateResultsPosition(),this.updateSearchNavigationButtons())}},{key:"togglePinsFor",value:function(e){var t=e?"visible":"hidden";this.br.refs.$BRfooter.find(".BRsearch").css({visibility:t})}},{key:"buildToolbarSearch",value:function(){var e=document.createElement("span");return e.classList.add("BRtoolbarSection","BRtoolbarSectionSearch"),e.innerHTML='\n      <form 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t=e.currentTarget,r=t.querySelector(".BRquery"),n=r.getBoundingClientRect(),a=t.getBoundingClientRect(),s=2*parseInt(getComputedStyle(r).paddingLeft);n.x-s<0&&r.style.setProperty("transform","translateX(-".concat(a.left-s,"px)")),i(".BRsearch,.BRchapter").removeClass("front"),i(e.target).addClass("front")})).on("mouseleave",(function(e){return i(e.target).removeClass("front")})).on("click",(function(){t.br._searchPluginGoToResult(e.matchIndex)}))}))}},{key:"toggleSearchPending",value:function(e){var t=this;e?this.br.showProgressPopup("Search results will appear below...",(function(){return t.progressPopupClosed()})):this.br.removeProgressPopup()}},{key:"progressPopupClosed",value:function(){this.toggleSearchPending(),this.cancelSearch()}},{key:"renderErrorModal",value:function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0],t="".concat(e?"":"The text may still be processing. ","Please try again.");this.renderModalMessage("\n      Sorry, there was an error with your search.\n      <br />\n      ".concat(t,"\n    ")),this.delayModalRemovalFor(4e3)}},{key:"renderBookNotIndexedModal",value:function(){this.renderModalMessage("\n      <p>\n         This book hasn't been indexed for searching yet.\n         We've just started indexing it, so search should be available soon.\n         <br />\n         Please try again later. Thanks!\n      </p>\n    "),this.delayModalRemovalFor(5e3)}},{key:"renderResultsEmptyModal",value:function(){this.renderModalMessage("No matches were found."),this.delayModalRemovalFor(2e3)}},{key:"renderModalMessage",value:function(e){var t=document.createElement("div");t.classList.add("BRprogresspopup","search_modal"),t.innerHTML=e,document.querySelector(this.br.el).append(t)}},{key:"delayModalRemovalFor",value:function(e){setTimeout(this.br.removeProgressPopup.bind(this.br),e)}},{key:"submitHandler",value:function(e){e.preventDefault();var t=e.target.querySelector('[name="query"]').value;return!!t.length&&(this.br.search(t),this.emptyMatches(),this.toggleSearchPending(!0),!1)}},{key:"handleSearchCallback",value:function(e,t){var r=this,n=t.results,a=t.options;this.matches=n.matches,this.setCurrentMatchIndex(),this.teardownSearchNavigation(),this.renderSearchNavigation(),this.bindSearchNavigationEvents(),this.renderPins(n.matches),this.toggleSearchPending(!1),a.goToFirstResult?i(document).one("BookReader:pageChanged",(function(){r.br.resize()})):this.br.resize()}},{key:"handleNavToggledCallback",value:function(e){var t=this.br.navigationIsVisible();this.togglePinsFor(t)}},{key:"handleSearchStarted",value:function(){this.emptyMatches(),this.br.removeSearchHilites(),this.removeResultPins(),this.toggleSearchPending(!0),this.teardownSearchNavigation(),this.setQuery(this.br.searchTerm)}},{key:"handleSearchCallbackError",value:function(){var e,t,r,n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.toggleSearchPending(!1);var a=null==n||null===(e=n.detail)||void 0===e||null===(t=e.props)||void 0===t||null===(r=t.results)||void 0===r?void 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n,a,i=[],s=!0,o=!1;try{for(r=r.call(e);!(s=(n=r.next()).done)&&(i.push(n.value),!t||i.length!==t);s=!0);}catch(e){o=!0,a=e}finally{try{s||null==r.return||r.return()}finally{if(o)throw a}}return i}}(e,t)||v(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function d(e,t){var r="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!r){if(Array.isArray(e)||(r=v(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,a=function(){};return{s:a,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:a}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var i,s=!0,o=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return s=e.done,e},e:function(e){o=!0,i=e},f:function(){try{s||null==r.return||r.return()}finally{if(o)throw i}}}}function v(e,t){if(e){if("string"==typeof e)return g(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?g(e,t):void 0}}function g(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function p(e,t,r,n,a,i,s){try{var o=e[i](s),c=o.value}catch(e){return void r(e)}o.done?t(c):Promise.resolve(c).then(n,a)}function f(e){return function(){var t=this,r=arguments;return new Promise((function(n,a){var i=e.apply(t,r);function s(e){p(i,n,a,s,o,"next",e)}function o(e){p(i,n,a,s,o,"throw",e)}s(void 0)}))}}h.extend(BookReader.defaultOptions,{server:"ia600609.us.archive.org",bookId:"",subPrefix:"",bookPath:"",enableSearch:!0,searchInsideUrl:"/fulltext/inside.php",initialSearchTerm:null}),BookReader.prototype.setup=(o=BookReader.prototype.setup,function(e){o.call(this,e),this.searchTerm="",this.searchResults=null,this.searchInsideUrl=e.searchInsideUrl,this.enableSearch=e.enableSearch,this.bookId=e.bookId,this.server=e.server,this.subPrefix=e.subPrefix,this.bookPath=e.bookPath,this.searchXHR=null,this._cancelSearch.bind(this),this.cancelSearchRequest.bind(this),this._searchBoxesByIndex={},this.searchView=void 0}),BookReader.prototype.init=function(e){return function(){var t=this;e.call(this),this.searchView=new c({br:this,searchCancelledCallback:function(){t._cancelSearch(),t.trigger("SearchCanceled",{term:t.searchTerm,instance:t})}}),this.options.enableSearch&&this.options.initialSearchTerm&&this.search(this.options.initialSearchTerm,{goToFirstResult:this.options.goToFirstResult,suppressFragmentChange:!1})}}(BookReader.prototype.init),BookReader.prototype.buildToolbarElement=function(e){return function(){var t=e.call(this);if(this.enableSearch)return this.searchView.dom.toolbarSearch&&t.find(".BRtoolbarSectionInfo").after(this.searchView.dom.toolbarSearch),t}}(BookReader.prototype.buildToolbarElement),BookReader.prototype._createPageContainer=function(e){return function(t){var r=e.call(this,t);if(this.enableSearch&&r.page&&t in this._searchBoxesByIndex){var n=r.page.index,i=this._searchBoxesByIndex[n];(0,a.Tm)("searchHiliteLayer",i,r.page,r.$container[0],i.map((function(e){return"match-index-".concat(e.matchIndex)})))}return r}}(BookReader.prototype._createPageContainer),BookReader.prototype.search=f(regeneratorRuntime.mark((function e(){var t,r,n,a,i,s,o,c,u,d,v,g,p=this,f=arguments;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:return t=f.length>0&&void 0!==f[0]?f[0]:"",r=f.length>1&&void 0!==f[1]?f[1]:{},n={goToFirstResult:!1,disablePopup:!1,suppressFragmentChange:!1,error:null,success:null},a=h.extend({},n,r),this.suppressFragmentChange=a.suppressFragmentChange,this.searchCancelled=!1,this.searchTerm=t.replace(/\//g," "),a.suppressFragmentChange||this.trigger(BookReader.eventNames.fragmentChange),i=this.server.replace(/:.+/,""),s="https://".concat(i).concat(this.searchInsideUrl,"?"),o=this.bookPath,c="/".concat(this.subPrefix),this.bookPath.length-this.bookPath.lastIndexOf(c)==c.length&&(o=this.bookPath.substr(0,this.bookPath.length-c.length)),u={item_id:this.bookId,doc:this.subPrefix,path:o,q:t},d=l.param(u).replace(/%2F/g,"/"),v="".concat(s).concat(d),g=function(e){if(!p.searchCancelled){var t=e.error||!e.matches.length,r="function"==typeof a.error,n="function"==typeof a.success;t?(console.error("Search Inside Response Error",e.error||"matches.length == 0"),r?a.error.call(p,e,a):p.BRSearchCallbackError(e,a)):n?a.success.call(p,e,a):p.BRSearchCallback(e,a)}},this.trigger("SearchStarted",{term:this.searchTerm,instance:this}),e.t0=g,e.next=21,l.ajax({url:v,dataType:"jsonp",cache:!0,beforeSend:function(e){p.searchXHR=e}});case 21:e.t1=e.sent,(0,e.t0)(e.t1);case 23:case"end":return e.stop()}}),e,this)}))),BookReader.prototype._cancelSearch=function(){var e;null===(e=this.searchXHR)||void 0===e||e.abort(),this.searchView.clearSearchFieldAndResults(!1),this.searchTerm="",this.searchXHR=null,this.searchCancelled=!0,this.searchResults=[]},BookReader.prototype.cancelSearchRequest=function(){this.searchCancelled=!0,null!==this.searchXHR&&(this._cancelSearch(),this.searchView.toggleSearchPending(),this.trigger("SearchCanceled",{term:this.searchTerm,instance:this}))},BookReader.prototype.BRSearchCallback=function(e,t){var r=this;!function(e,t){var n,a,i=d(e.matches.entries());try{for(i.s();!(n=i.n()).done;){var s=u(n.value,2),o=s[0],c=s[1];c.matchIndex=o,c.displayPageNumber=(a=c.par[0].page,r.book.getPageNum(r.book.leafNumToIndex(a)));var h,l=d(c.par);try{for(l.s();!(h=l.n()).done;){var v,g=d(h.value.boxes);try{for(g.s();!(v=g.n()).done;)v.value.matchIndex=o}catch(e){g.e(e)}finally{g.f()}}}catch(e){l.e(e)}finally{l.f()}}}catch(e){i.e(e)}finally{i.f()}}(e),this.searchResults=e||[],this.updateSearchHilites(),this.removeProgressPopup(),t.goToFirstResult&&this._searchPluginGoToResult(0),this.trigger("SearchCallback",{results:e,options:t,instance:this})},BookReader.prototype.BRSearchCallbackError=function(e){this._BRSearchCallbackError(e)},BookReader.prototype._BRSearchCallbackError=function(e){this.searchResults=e;var t={term:this.searchTerm,instance:this};if(e.error){var r=Object.assign({},t,{results:e});this.trigger("SearchCallbackError",r)}else if(0==e.matches.length){if(!1===e.indexed)return void this.trigger("SearchCallbackBookNotIndexed",t);this.trigger("SearchCallbackEmpty",t)}},BookReader.prototype.updateSearchHilites=function(){var e,t=(null===(e=this.searchResults)||void 0===e?void 0:e.matches)||[],r={};this.removeSearchHilites();var n,i=d(t);try{for(i.s();!(n=i.n()).done;){var s,o=d(n.value.par[0].boxes);try{for(o.s();!(s=o.n()).done;){var c=s.value,h=this.book.leafNumToIndex(c.page);(r[h]||(r[h]=[])).push(c)}}catch(e){o.e(e)}finally{o.f()}}}catch(e){i.e(e)}finally{i.f()}for(var l=0,v=Object.entries(r);l<v.length;l++){var g,p=u(v[l],2),f=p[0],b=p[1],m=parseFloat(f),y=this.book.getPage(m),k=d(this.getActivePageContainerElementsForIndex(m));try{for(k.s();!(g=k.n()).done;){var S=g.value;(0,a.Tm)("searchHiliteLayer",b,y,S,b.map((function(e){return"match-index-".concat(e.matchIndex)})))}}catch(e){k.e(e)}finally{k.f()}}this._searchBoxesByIndex=r},BookReader.prototype.removeSearchHilites=function(){l(this.getActivePageContainerElements()).find(".searchHiliteLayer").remove()},BookReader.prototype._searchPluginGoToResult=function(){var e=f(regeneratorRuntime.mark((function e(t){var r,a,i,s,o,c,h,u,v,g,p,f;return regeneratorRuntime.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:if(a=null===(r=this.searchResults)||void 0===r?void 0:r.matches[t],i=this.book,s=i.leafNumToIndex(a.par[0].page),o=i.getPage(s),c=Math.abs(this.currentIndex()-s)<3,h=!1,o.isViewable){e.next=17;break}return e.next=9,fetch("/services/bookreader/request_page?"+new URLSearchParams({id:this.options.bookId,subprefix:this.options.subPrefix,leafNum:o.leafNum})).then((function(e){return e.json()}));case 9:u=e.sent,v=d(u.value);try{for(v.s();!(g=v.n()).done;)p=g.value,i.getPage(i.leafNumToIndex(p)).makeViewable()}catch(e){v.e(e)}finally{v.f()}if(u.value.length||(i.getPage(s).makeViewable(),h=!0),this._modes.mode1Up.mode1UpLit.updatePages(),this.activeMode!=this._modes.mode1Up){e.next=17;break}return e.next=17,this._modes.mode1Up.mode1UpLit.updateComplete;case 17:return this._isIndexDisplayed(s)||(this.suppressFragmentChange=!1,this.jumpToIndex(s)),h&&i.getPage(s).makeViewable(!1),e.next=21,(0,n.poll)((function(){return l("rect.match-index-".concat(a.matchIndex))}),{until:function(e){return e.length>0}});case 21:if(!(f=e.sent).length){e.next=28;break}return f.css("animation","none"),f[0].scrollIntoView({block:this.constMode1up==this.mode||this.isFullscreenActive?"center":"nearest",inline:"center",behavior:c?"smooth":"auto"}),e.next=27,new Promise((function(e){return setTimeout(e,100)}));case 27:f.removeAttr("style");case 28:case"end":return e.stop()}}),e,this)})));return function(t){return e.apply(this,arguments)}}(),BookReader.prototype.removeSearchResults=function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0];this.removeSearchHilites(),this.searchTerm=null,this.searchResults=null,e||this.trigger(BookReader.eventNames.fragmentChange)},BookReader.prototype.searchHighlightVisible=function(){var e=this,t=this.searchResults,r=[];if(null==t)return!1;if(this.constMode2up==this.mode)r=[this.twoPage.currentIndexL,this.twoPage.currentIndexR];else{if(this.constMode1up!=this.mode)return!1;r=[this.currentIndex()]}return t.matches.some((function(t){return t.par[0].boxes.some((function(t){var n=e.book.leafNumToIndex(t.page);if(h.inArray(n,r)>=0)return!0}))})),!1}},2814:function(e,t,r){var n=r(7854),a=r(7293),i=r(1702),s=r(1340),o=r(3111).trim,c=r(1361),h=i("".charAt),l=n.parseFloat,u=n.Symbol,d=u&&u.iterator,v=1/l(c+"-0")!=-1/0||d&&!a((function(){l(Object(d))}));e.exports=v?function(e){var t=o(s(e)),r=l(t);return 0===r&&"-"==h(t,0)?-0:r}:l},9720:function(e,t,r){var n=r(2109),a=r(4699).entries;n({target:"Object",stat:!0},{entries:function(e){return a(e)}})},4678:function(e,t,r){var n=r(2109),a=r(2814);n({global:!0,forced:parseFloat!=a},{parseFloat:a})}},function(e){e(e.s=8011)}]);
 //# sourceMappingURL=plugin.search.js.map
\ No newline at end of file
diff --git a/BookReader/plugins/plugin.search.js.map b/BookReader/plugins/plugin.search.js.map
index 1d595cfb8..ea5e8244b 100644
--- a/BookReader/plugins/plugin.search.js.map
+++ b/BookReader/plugins/plugin.search.js.map
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@ts-check\n/* global BookReader */\n/**\n * Plugin for Archive.org book search\n * NOTE: This script must be loaded AFTER `plugin.mobile_nav.js`\n * as it mutates mobile nav drawer\n *\n * Events fired at various points throughout search processing are published\n * on the document DOM element. These can be subscribed to using jQuery's event\n * binding method `$.fn.on`. All of the events are prefixed with a BookReader\n * namespace. The events are:\n *\n * @event BookReader:SearchStarted - When a search form is submitted, immediately\n *   before an AJAX call is made to request search results\n * @event BookReader:SearchCallback - When the search AJAX call is returned and at\n *   least one result is returned. The event callback receives an object\n *   with the `results`, plugin `options`, and the BookReader `instance`\n * @event BookReader:SearchCallbackError - When the AJAX request returns an error.\n *   Receives the `results` and `instance`\n * @event BookReader:SearchCallbackNotIndexed - When a message is received that\n *   the book has not had OCR text indexed yet. Receives `instance`\n * @event BookReader:SearchCallbackEmpty - When no results found. Receives\n *   `instance`\n * @event BookReader:SearchCanceled - When no results found. Receives\n *   `instance`\n */\nimport { poll } from '../../BookReader/utils.js';\nimport { renderBoxesInPageContainerLayer } from '../../BookReader/PageContainer.js';\nimport SearchView from './view.js';\n/** @typedef {import('../../BookReader/PageContainer').PageContainer} PageContainer */\n/** @typedef {import('../../BookReader/BookModel').PageIndex} PageIndex */\n/** @typedef {import('../../BookReader/BookModel').LeafNum} LeafNum */\n/** @typedef {import('../../BookReader/BookModel').PageNumString} PageNumString */\n\njQuery.extend(BookReader.defaultOptions, {\n  server: 'ia600609.us.archive.org',\n  bookId: '',\n  subPrefix: '',\n  bookPath: '',\n  enableSearch: true,\n  searchInsideUrl: '/fulltext/inside.php',\n  initialSearchTerm: null,\n});\n\n/** @override */\nBookReader.prototype.setup = (function (super_) {\n  return function (options) {\n    super_.call(this, options);\n\n    this.searchTerm = '';\n    this.searchResults = null;\n    this.searchInsideUrl = options.searchInsideUrl;\n    this.enableSearch = options.enableSearch;\n\n    // Base server used by some api calls\n    this.bookId = options.bookId;\n    this.server = options.server;\n    this.subPrefix = options.subPrefix;\n    this.bookPath = options.bookPath;\n\n    this.searchXHR = null;\n    this._cancelSearch.bind(this);\n    this.cancelSearchRequest.bind(this);\n\n    /** @type { {[pageIndex: number]: SearchInsideMatchBox[]} } */\n    this._searchBoxesByIndex = {};\n\n    this.searchView = undefined;\n  };\n})(BookReader.prototype.setup);\n\n/** @override */\nBookReader.prototype.init = (function (super_) {\n  return function () {\n    super_.call(this);\n    // give SearchView the most complete bookreader state\n    this.searchView = new SearchView({\n      br: this,\n      searchCancelledCallback: () => {\n        this._cancelSearch();\n        this.trigger('SearchCanceled', { term: this.searchTerm, instance: this });\n      }\n    });\n    if (this.options.enableSearch && this.options.initialSearchTerm) {\n      /**\n       * this.search() take two parameter\n       * 1. this.options.initialSearchTerm - search term\n       * 2. {\n       *  goToFirstResult: this.options.goToFirstResult,\n       *  suppressFragmentChange: false // always want to change fragment in URL\n       * }\n       */\n      this.search(\n        this.options.initialSearchTerm,\n        { goToFirstResult: this.options.goToFirstResult, suppressFragmentChange: false }\n      );\n    }\n  };\n})(BookReader.prototype.init);\n\n/** @override */\nBookReader.prototype.buildToolbarElement = (function (super_) {\n  return function () {\n    const $el = super_.call(this);\n    if (!this.enableSearch) { return; }\n    if (this.searchView.dom.toolbarSearch) {\n      $el.find('.BRtoolbarSectionInfo').after(this.searchView.dom.toolbarSearch);\n    }\n    return $el;\n  };\n})(BookReader.prototype.buildToolbarElement);\n\n/** @override */\nBookReader.prototype._createPageContainer = (function (super_) {\n  return function (index) {\n    const pageContainer = super_.call(this, index);\n    if (this.enableSearch && pageContainer.page && index in this._searchBoxesByIndex) {\n      const pageIndex = pageContainer.page.index;\n      const boxes = this._searchBoxesByIndex[pageIndex];\n      renderBoxesInPageContainerLayer(\n        'searchHiliteLayer',\n        boxes,\n        pageContainer.page,\n        pageContainer.$container[0],\n        boxes.map(b => `match-index-${b.matchIndex}`),\n      );\n    }\n    return pageContainer;\n  };\n})(BookReader.prototype._createPageContainer);\n\n/**\n * @typedef {object} SearchOptions\n * @property {boolean} goToFirstResult\n * @property {boolean} disablePopup\n * @property {(null|function)} error - @deprecated at v.5.0\n * @property {(null|function)} success - @deprecated at v.5.0\n */\n\n/**\n * Submits search request\n *\n * @param {string} term\n * @param {SearchOptions} overrides\n */\nBookReader.prototype.search = async function(term = '', overrides = {}) {\n  /** @type {SearchOptions} */\n  const defaultOptions = {\n    goToFirstResult: false, /* jump to the first result (default=false) */\n    disablePopup: false,    /* don't show the modal progress (default=false) */\n    suppressFragmentChange: false, /* don't change the URL on initial load */\n    error: null,            /* optional error handler (default=null) */\n    success: null,          /* optional success handler (default=null) */\n\n  };\n  const options = jQuery.extend({}, defaultOptions, overrides);\n  this.suppressFragmentChange = options.suppressFragmentChange;\n  this.searchCancelled = false;\n\n  // strip slashes, since this goes in the url\n  this.searchTerm = term.replace(/\\//g, ' ');\n\n  if (!options.suppressFragmentChange) {\n    this.trigger(BookReader.eventNames.fragmentChange);\n  }\n\n  // Add quotes to the term. This is to compenstate for the backends default OR query\n  // term = term.replace(/['\"]+/g, '');\n  // term = '\"' + term + '\"';\n\n  // Remove the port and userdir\n  const serverPath = this.server.replace(/:.+/, '');\n  const baseUrl = `https://${serverPath}${this.searchInsideUrl}?`;\n\n  // Remove subPrefix from end of path\n  let path = this.bookPath;\n  const subPrefixWithSlash = `/${this.subPrefix}`;\n  if (this.bookPath.length - this.bookPath.lastIndexOf(subPrefixWithSlash) == subPrefixWithSlash.length) {\n    path = this.bookPath.substr(0, this.bookPath.length - subPrefixWithSlash.length);\n  }\n\n  const urlParams = {\n    item_id: this.bookId,\n    doc: this.subPrefix,\n    path,\n    q: term,\n  };\n\n  // NOTE that the API does not expect / (slashes) to be encoded. (%2F) won't work\n  const paramStr = $.param(urlParams).replace(/%2F/g, '/');\n\n  const url = `${baseUrl}${paramStr}`;\n\n  const callSearchResultsCallback = (searchInsideResults) => {\n    if (this.searchCancelled) {\n      return;\n    }\n    const responseHasError = searchInsideResults.error || !searchInsideResults.matches.length;\n    const hasCustomError = typeof options.error === 'function';\n    const hasCustomSuccess = typeof options.success === 'function';\n\n    if (responseHasError) {\n      console.error('Search Inside Response Error', searchInsideResults.error || 'matches.length == 0');\n      hasCustomError\n        ? options.error.call(this, searchInsideResults, options)\n        : this.BRSearchCallbackError(searchInsideResults, options);\n    } else {\n      hasCustomSuccess\n        ? options.success.call(this, searchInsideResults, options)\n        : this.BRSearchCallback(searchInsideResults, options);\n    }\n  };\n\n  this.trigger('SearchStarted', { term: this.searchTerm, instance: this });\n  callSearchResultsCallback(await $.ajax({\n    url: url,\n    dataType: 'jsonp',\n    cache: true,\n    beforeSend: xhr => { this.searchXHR = xhr; },\n  }));\n};\n\n/**\n * cancels AJAX Call\n * emits custom event\n */\nBookReader.prototype._cancelSearch = function () {\n  this.searchXHR?.abort();\n  this.searchView.clearSearchFieldAndResults(false);\n  this.searchTerm = '';\n  this.searchXHR = null;\n  this.searchCancelled = true;\n  this.searchResults = [];\n};\n\n/**\n * External function to cancel search\n * checks for term & xhr in flight before running\n */\nBookReader.prototype.cancelSearchRequest = function () {\n  this.searchCancelled = true;\n  if (this.searchXHR !== null) {\n    this._cancelSearch();\n    this.searchView.toggleSearchPending();\n    this.trigger('SearchCanceled', { term: this.searchTerm, instance: this });\n  }\n};\n\n/**\n  * @typedef {object} SearchInsideMatchBox\n  * @property {number} page\n  * @property {number} r\n  * @property {number} l\n  * @property {number} b\n  * @property {number} t\n  * @property {HTMLDivElement} [div]\n  * @property {number} matchIndex This is a fake field! not part of the API response. The index of the match that contains this box in total search results matches.\n  */\n\n/**\n * @typedef {object} SearchInsideMatch\n * @property {number} matchIndex This is a fake field! Not part of the API response. It is added by the JS.\n * @property {string} displayPageNumber (fake field) The page number as it should be displayed in the UI.\n * @property {string} text\n * @property {Array<{ page: number, boxes: SearchInsideMatchBox[] }>} par\n */\n\n/**\n * @typedef {object} SearchInsideResults\n * @property {string} error\n * @property {SearchInsideMatch[]} matches\n * @property {boolean} indexed\n */\n\n/**\n * Attach some fields to search inside results\n * @param {SearchInsideResults} results\n * @param {(pageNum: LeafNum) => PageNumString} displayPageNumberFn\n */\nexport function marshallSearchResults(results, displayPageNumberFn) {\n  // Attach matchIndex to a few things to make it easier to identify\n  // an active/selected match\n  for (const [index, match] of results.matches.entries()) {\n    match.matchIndex = index;\n    match.displayPageNumber = displayPageNumberFn(match.par[0].page);\n    for (const par of match.par) {\n      for (const box of par.boxes) {\n        box.matchIndex = index;\n      }\n    }\n  }\n}\n\n/**\n * Search Results return handler\n * @param {SearchInsideResults} results\n * @param {object} options\n * @param {boolean} options.goToFirstResult\n */\nBookReader.prototype.BRSearchCallback = function(results, options) {\n  marshallSearchResults(results, pageNum => this.book.getPageNum(this.book.leafNumToIndex(pageNum)));\n  this.searchResults = results || [];\n\n  this.updateSearchHilites();\n  this.removeProgressPopup();\n  if (options.goToFirstResult) {\n    this._searchPluginGoToResult(0);\n  }\n  this.trigger('SearchCallback', { results, options, instance: this });\n};\n\n/**\n * Main search results error handler\n * @callback\n * @param {SearchInsideResults} results\n */\nBookReader.prototype.BRSearchCallbackError = function(results) {\n  this._BRSearchCallbackError(results);\n};\n\n/**\n * @private draws search results error\n * @callback\n * @param {SearchInsideResults} results\n * @param {jQuery} $el\n * @param {boolean} fade\n */\nBookReader.prototype._BRSearchCallbackError = function(results) {\n  this.searchResults = results;\n  const basePayload = {\n    term: this.searchTerm,\n    instance: this,\n  };\n  if (results.error) {\n    const payload = Object.assign({}, basePayload, { results });\n    this.trigger('SearchCallbackError', payload);\n  } else if (0 == results.matches.length) {\n    if (false === results.indexed) {\n      this.trigger('SearchCallbackBookNotIndexed', basePayload);\n      return;\n    }\n    this.trigger('SearchCallbackEmpty', basePayload);\n  }\n};\n\n/**\n * updates search on-page highlights controller\n */\nBookReader.prototype.updateSearchHilites = function() {\n  /** @type {SearchInsideMatch[]} */\n  const matches = this.searchResults?.matches || [];\n  /** @type { {[pageIndex: number]: SearchInsideMatchBox[]} } */\n  const boxesByIndex = {};\n\n  // Clear any existing svg layers\n  this.removeSearchHilites();\n\n  // Group by pageIndex\n  for (const match of matches) {\n    for (const box of match.par[0].boxes) {\n      const pageIndex = this.book.leafNumToIndex(box.page);\n      const pageBoxes = boxesByIndex[pageIndex] || (boxesByIndex[pageIndex] = []);\n      pageBoxes.push(box);\n    }\n  }\n\n  // update any already created pages\n  for (const [pageIndexString, boxes] of Object.entries(boxesByIndex)) {\n    const pageIndex = parseFloat(pageIndexString);\n    const page = this.book.getPage(pageIndex);\n    const pageContainers = this.getActivePageContainerElementsForIndex(pageIndex);\n    for (const container of pageContainers) {\n      renderBoxesInPageContainerLayer('searchHiliteLayer', boxes, page, container, boxes.map(b => `match-index-${b.matchIndex}`));\n    }\n  }\n\n  this._searchBoxesByIndex = boxesByIndex;\n};\n\n/**\n * remove search highlights\n */\nBookReader.prototype.removeSearchHilites = function() {\n  $(this.getActivePageContainerElements()).find('.searchHiliteLayer').remove();\n};\n\n/**\n * @private\n * Goes to the page specified. If the page is not viewable, tries to load the page\n * FIXME Most of this logic is IA specific, and should be less integrated into here\n * or at least more configurable.\n * @param {number} matchIndex\n */\nBookReader.prototype._searchPluginGoToResult = async function (matchIndex) {\n  const match = this.searchResults?.matches[matchIndex];\n  const book = this.book;\n  const pageIndex = book.leafNumToIndex(match.par[0].page);\n  const page = book.getPage(pageIndex);\n  const onNearbyPage = Math.abs(this.currentIndex() - pageIndex) < 3;\n  let makeUnviewableAtEnd = false;\n  if (!page.isViewable) {\n    const resp = await fetch('/services/bookreader/request_page?' + new URLSearchParams({\n      id: this.options.bookId,\n      subprefix: this.options.subPrefix,\n      leafNum: page.leafNum,\n    })).then(r => r.json());\n\n    for (const leafNum of resp.value) {\n      book.getPage(book.leafNumToIndex(leafNum)).makeViewable();\n    }\n\n    // not able to show page; make the page viewable anyways so that it can\n    // actually open. On IA, it has a fallback to a special error page.\n    if (!resp.value.length) {\n      book.getPage(pageIndex).makeViewable();\n      makeUnviewableAtEnd = true;\n    }\n\n    // Trigger an update of book\n    this._modes.mode1Up.mode1UpLit.updatePages();\n    await this._modes.mode1Up.mode1UpLit.updateComplete;\n  }\n  /* this updates the URL */\n  if (!this._isIndexDisplayed(pageIndex)) {\n    this.suppressFragmentChange = false;\n    this.jumpToIndex(pageIndex);\n  }\n\n  // Reset it to unviewable if it wasn't resolved\n  if (makeUnviewableAtEnd) {\n    book.getPage(pageIndex).makeViewable(false);\n  }\n\n  // Scroll/flash in the ui\n  const $boxes = await poll(() => $(`rect.match-index-${match.matchIndex}`), { until: result => result.length > 0 });\n  if ($boxes.length) {\n    $boxes.css('animation', 'none');\n    $boxes[0].scrollIntoView({\n      // Only vertically center the highlight if we're in 1up or in full screen. In\n      // 2up, if we're not fullscreen, the whole body gets scrolled around to try to\n      // center the highlight 🙄 See:\n      // https://stackoverflow.com/questions/11039885/scrollintoview-causing-the-whole-page-to-move/11041376\n      // Note: nearest doesn't quite work great, because the ReadAloud toolbar is now\n      // full-width, and covers up the last line of the highlight.\n      block: this.constMode1up == this.mode || this.isFullscreenActive ? 'center' : 'nearest',\n      inline: 'center',\n      behavior: onNearbyPage ? 'smooth' : 'auto',\n    });\n    // wait for animation to start\n    await new Promise(resolve => setTimeout(resolve, 100));\n    $boxes.removeAttr(\"style\");\n  }\n};\n\n/**\n * Removes all search pins\n */\nBookReader.prototype.removeSearchResults = function(suppressFragmentChange = false) {\n  this.removeSearchHilites(); //be sure to set all box.divs to null\n  this.searchTerm = null;\n  this.searchResults = null;\n  if (!suppressFragmentChange) {\n    this.trigger(BookReader.eventNames.fragmentChange);\n  }\n};\n\n/**\n * Returns true if a search highlight is currently being displayed\n * @returns {boolean}\n */\nBookReader.prototype.searchHighlightVisible = function() {\n  const results = this.searchResults;\n  let visiblePages = [];\n  if (null == results) return false;\n\n  if (this.constMode2up == this.mode) {\n    visiblePages = [this.twoPage.currentIndexL, this.twoPage.currentIndexR];\n  } else if (this.constMode1up == this.mode) {\n    visiblePages = [this.currentIndex()];\n  } else {\n    return false;\n  }\n\n  results.matches.some(match => {\n    return match.par[0].boxes.some(box => {\n      const pageIndex = this.book.leafNumToIndex(box.page);\n      if (jQuery.inArray(pageIndex, visiblePages) >= 0) {\n        return true;\n      }\n    });\n  });\n\n  return false;\n};\n","import { escapeHTML } from \"../../BookReader/utils.js\";\n\nclass SearchView {\n  /**\n   * @param {object} params\n   * @param {object} params.br The BookReader instance\n   * @param {function} params.cancelSearch callback when a user wants to cancel search\n   *\n   * @event BookReader:SearchResultsCleared - when the search results nav gets cleared\n   * @event BookReader:ToggleSearchMenu - when search results menu should toggle\n   */\n  constructor({ br, searchCancelledCallback = () => {} }) {\n    this.br = br;\n\n    // Search results are returned as a text blob with the hits wrapped in\n    // triple mustaches. Hits occasionally include text beyond the search\n    // term, so everything within the staches is captured and wrapped.\n    this.matcher = new RegExp('{{{([^]+?)}}}', 'g'); // [^] matches any character, including line breaks\n    this.matches = [];\n    this.cacheDOMElements();\n    this.bindEvents();\n    this.cancelSearch = searchCancelledCallback;\n  }\n\n  cacheDOMElements() {\n    this.dom = {};\n    // Search input within the top toolbar. Will be removed once the mobile menu is replaced.\n    this.dom.toolbarSearch = this.buildToolbarSearch();\n  }\n\n  /**\n   * @param {string} query\n   */\n  setQuery(query) {\n    this.br.$('[name=\"query\"]').val(query);\n  }\n\n  emptyMatches() {\n    this.matches = [];\n  }\n\n  removeResultPins() {\n    this.br.$('.BRnavpos .BRsearch').remove();\n  }\n\n  clearSearchFieldAndResults(dispatchEventWhenComplete = true) {\n    this.br.removeSearchResults();\n    this.removeResultPins();\n    this.emptyMatches();\n    this.setQuery('');\n    this.teardownSearchNavigation();\n    if (dispatchEventWhenComplete) {\n      this.br.trigger('SearchResultsCleared');\n    }\n  }\n\n  toggleSidebar() {\n    this.br.trigger('ToggleSearchMenu');\n  }\n\n  renderSearchNavigation() {\n    const selector = 'BRsearch-navigation';\n    $('.BRnav').before(`\n      <div class=\"${selector}\">\n        <button class=\"toggle-sidebar\">\n          <h4>\n            <span class=\"icon icon-search\"></span> Results\n          </h4>\n        </button>\n        <div class=\"pagination\">\n          <button class=\"prev\" title=\"Previous result\"><span class=\"icon icon-chevron hflip\"></span></button>\n          <span data-id=\"resultsCount\">${this.resultsPosition()}</span>\n          <button class=\"next\" title=\"Next result\"><span class=\"icon icon-chevron\"></button>\n        </div>\n        <button class=\"clear\" title=\"Clear search results\">\n          <span class=\"icon icon-close\"></span>\n        </button>\n      </div>\n    `);\n    this.dom.searchNavigation = $(`.${selector}`);\n  }\n\n  resultsPosition() {\n    let positionMessage = `${this.matches.length} result${this.matches.length === 1 ? '' : 's'}`;\n    if (~this.currentMatchIndex) {\n      positionMessage = `${this.currentMatchIndex + 1} / ${this.matches.length}`;\n    }\n    return positionMessage;\n  }\n\n  bindSearchNavigationEvents() {\n    if (!this.dom.searchNavigation) { return; }\n    const namespace = 'searchNavigation';\n\n    this.dom.searchNavigation\n      .on(`click.${namespace}`, '.clear', this.clearSearchFieldAndResults.bind(this))\n      .on(`click.${namespace}`, '.prev', this.showPrevResult.bind(this))\n      .on(`click.${namespace}`, '.next', this.showNextResult.bind(this))\n      .on(`click.${namespace}`, '.toggle-sidebar', this.toggleSidebar.bind(this))\n      .on(`click.${namespace}`, false);\n  }\n\n  showPrevResult() {\n    if (this.currentMatchIndex === 0) { return; }\n    if (this.br.mode === this.br.constModeThumb) { this.br.switchMode(this.br.constMode1up); }\n    if (!~this.currentMatchIndex) {\n      this.currentMatchIndex = this.getClosestMatchIndex((start, end, comparator) => end[0] > comparator) + 1;\n    }\n    this.br.$('.BRnavline .BRsearch').eq(--this.currentMatchIndex).click();\n    this.updateResultsPosition();\n    this.updateSearchNavigationButtons();\n  }\n\n  showNextResult() {\n    if (this.currentMatchIndex + 1 === this.matches.length) { return; }\n    if (this.br.mode === this.br.constModeThumb) { this.br.switchMode(this.br.constMode1up); }\n    if (!~this.currentMatchIndex) {\n      this.currentMatchIndex = this.getClosestMatchIndex((start, end, comparator) => start[start.length - 1] > comparator) - 1;\n    }\n    this.br.$('.BRnavline .BRsearch').eq(++this.currentMatchIndex).click();\n    this.updateResultsPosition();\n    this.updateSearchNavigationButtons();\n  }\n\n  /**\n   * Obtains closest match based on the logical comparison function passed in.\n   * When the comparison function returns true, the starting (left) half of the\n   * matches array is used in the binary split, else the ending (right) half is\n   * used. A recursive call is made to perform the same split and comparison\n   * on the winning half of the matches. This is traditionally known as binary\n   * search (https://en.wikipedia.org/wiki/Binary_search_algorithm), and in\n   * most cases (medium to large search result arrays) should outperform\n   * traversing the array from start to finish. In the case of small arrays,\n   * the speed difference is negligible.\n   *\n   * @param {function} comparisonFn\n   * @return {number} matchIndex\n   */\n  getClosestMatchIndex(comparisonFn) {\n    const matchPages = this.matches.map((m) => m.par[0].page);\n    const currentPage = this.br.currentIndex() + 1;\n    const closestTo = (pool, comparator) => {\n      if (pool.length === 1) { return pool[0]; }\n      const start = pool.slice(0, pool.length / 2);\n      const end = pool.slice(pool.length / 2);\n      return closestTo((comparisonFn(start, end, comparator) ? start : end), comparator);\n    };\n\n    const closestPage = closestTo(matchPages, currentPage);\n    return this.matches.indexOf(this.matches.find((m) => m.par[0].page === closestPage));\n  }\n\n  updateResultsPosition() {\n    if (!this.dom.searchNavigation) return;\n    this.dom.searchNavigation.find('[data-id=resultsCount]').text(this.resultsPosition());\n  }\n\n  updateSearchNavigationButtons() {\n    if (!this.dom.searchNavigation) return;\n    this.dom.searchNavigation.find('.prev').attr('disabled', !this.currentMatchIndex);\n    this.dom.searchNavigation.find('.next').attr('disabled', this.currentMatchIndex + 1 === this.matches.length);\n  }\n\n  teardownSearchNavigation() {\n    if (!this.dom.searchNavigation) {\n      this.dom.searchNavigation = $('.BRsearch-navigation');\n    }\n    if (!this.dom.searchNavigation.length) { return; }\n\n    this.dom.searchNavigation.off('.searchNavigation').remove();\n    this.dom.searchNavigation = null;\n    this.br.resize();\n  }\n\n  setCurrentMatchIndex() {\n    let matchingSearchResult;\n    if (this.br.mode === this.br.constModeThumb) {\n      this.currentMatchIndex = -1;\n      return;\n    }\n    if (this.br.mode === this.br.constMode2up) {\n      matchingSearchResult = this.find2upMatchingSearchResult();\n    }\n    else {\n      matchingSearchResult = this.find1upMatchingSearchResult();\n    }\n    this.currentMatchIndex = this.matches.indexOf(matchingSearchResult);\n  }\n\n  find1upMatchingSearchResult() {\n    return this.matches.find((m) => this.br.currentIndex() === m.par[0].page - 1);\n  }\n\n  find2upMatchingSearchResult() {\n    return this.matches.find((m) => this.br._isIndexDisplayed(m.par[0].page - 1));\n  }\n\n  updateSearchNavigation() {\n    if (!this.matches.length) { return; }\n\n    this.setCurrentMatchIndex();\n    this.updateResultsPosition();\n    this.updateSearchNavigationButtons();\n  }\n\n  /**\n   * @param {boolean} bool\n   */\n  togglePinsFor(bool) {\n    const pinsVisibleState = bool ? 'visible' : 'hidden';\n    this.br.refs.$BRfooter.find('.BRsearch').css({ visibility: pinsVisibleState });\n  }\n\n  buildToolbarSearch() {\n    const toolbarSearch = document.createElement('span');\n    toolbarSearch.classList.add('BRtoolbarSection', 'BRtoolbarSectionSearch');\n    toolbarSearch.innerHTML = `\n      <form class=\"BRbooksearch desktop\">\n        <input type=\"search\" name=\"query\" class=\"BRsearchInput\" value=\"\" placeholder=\"Search inside\"/>\n        <button type=\"submit\" class=\"BRsearchSubmit\">\n          <img src=\"${this.br.imagesBaseURL}icon_search_button.svg\" />\n        </button>\n      </form>\n    `;\n    return toolbarSearch;\n  }\n\n  /**\n   * @param {array} matches\n   */\n  renderPins(matches) {\n    matches.forEach((match) => {\n      const queryString = match.text;\n      const pageIndex = this.br.book.leafNumToIndex(match.par[0].page);\n      const uiStringSearch = \"Search result\"; // i18n\n\n      const percentThrough = this.br.constructor.util.cssPercentage(pageIndex, this.br.book.getNumLeafs() - 1);\n\n      const escapedQueryString = escapeHTML(queryString);\n      const queryStringWithB = escapedQueryString.replace(this.matcher, '<b>$1</b>');\n\n      let queryStringWithBTruncated = '';\n\n      if (queryString.length > 100) {\n        queryStringWithBTruncated = queryString.replace(/^(.{100}[^\\s]*).*/, \"$1\");\n\n        // If truncating, we must escape *after* truncation occurs (but before wrapping in <b>)\n        queryStringWithBTruncated = escapeHTML(queryStringWithBTruncated)\n          .replace(this.matcher, '<b>$1</b>')\n          + '...';\n      }\n\n      // draw marker\n      $('<div>')\n        .addClass('BRsearch')\n        .css({\n          left: percentThrough,\n        })\n        .attr('title', uiStringSearch)\n        .append(`\n          <div class=\"BRquery\">\n            <div>${queryStringWithBTruncated || queryStringWithB}</div>\n            <div>Page ${match.displayPageNumber}</div>\n          </div>\n        `)\n        .appendTo(this.br.$('.BRnavline'))\n        .on(\"mouseenter\", (event) => {\n          // remove from other markers then turn on just for this\n          // XXX should be done when nav slider moves\n          const marker = event.currentTarget;\n          const tooltip = marker.querySelector('.BRquery');\n          const tooltipOffset = tooltip.getBoundingClientRect();\n          const targetOffset = marker.getBoundingClientRect();\n          const boxSizeAdjust = parseInt(getComputedStyle(tooltip).paddingLeft) * 2;\n          if (tooltipOffset.x - boxSizeAdjust < 0) {\n            tooltip.style.setProperty('transform', `translateX(-${targetOffset.left - boxSizeAdjust}px)`);\n          }\n          $('.BRsearch,.BRchapter').removeClass('front');\n          $(event.target).addClass('front');\n        })\n        .on(\"mouseleave\", (event) => $(event.target).removeClass('front'))\n        .on(\"click\", () => { this.br._searchPluginGoToResult(match.matchIndex); });\n    });\n  }\n\n  /**\n   * @param {boolean} bool\n   */\n  toggleSearchPending(bool) {\n    if (bool) {\n      this.br.showProgressPopup(\"Search results will appear below...\", () => this.progressPopupClosed());\n    }\n    else {\n      this.br.removeProgressPopup();\n    }\n  }\n\n  /**\n   * Primary callback when user cancels search popup\n   */\n  progressPopupClosed() {\n    this.toggleSearchPending();\n    this.cancelSearch();\n  }\n\n  renderErrorModal(textIsProcessing = false) {\n    const errorDetails = `${!textIsProcessing ? 'The text may still be processing. ' : ''}Please try again.`;\n    this.renderModalMessage(`\n      Sorry, there was an error with your search.\n      <br />\n      ${errorDetails}\n    `);\n    this.delayModalRemovalFor(4000);\n  }\n\n  renderBookNotIndexedModal() {\n    this.renderModalMessage(`\n      <p>\n         This book hasn't been indexed for searching yet.\n         We've just started indexing it, so search should be available soon.\n         <br />\n         Please try again later. Thanks!\n      </p>\n    `);\n    this.delayModalRemovalFor(5000);\n  }\n\n  renderResultsEmptyModal() {\n    this.renderModalMessage('No matches were found.');\n    this.delayModalRemovalFor(2000);\n  }\n\n  /**\n   * @param {string} messageHTML The innerHTML string used to popupate the modal contents\n   */\n  renderModalMessage(messageHTML) {\n    const modal = document.createElement('div');\n    modal.classList.add('BRprogresspopup', 'search_modal');\n    modal.innerHTML = messageHTML;\n    document.querySelector(this.br.el).append(modal);\n  }\n\n  /**\n   * @param {number} timeoutMS\n   */\n  delayModalRemovalFor(timeoutMS) {\n    setTimeout(this.br.removeProgressPopup.bind(this.br), timeoutMS);\n  }\n\n  /**\n   * @param {Event} e\n   */\n  submitHandler(e) {\n    e.preventDefault();\n    const query = e.target.querySelector('[name=\"query\"]').value;\n    if (!query.length) { return false; }\n    this.br.search(query);\n    this.emptyMatches();\n    this.toggleSearchPending(true);\n    return false;\n  }\n\n  /**\n   * @param {Event} e\n   * @param {object} properties\n   *   @param {object} properties.results\n   *   @param {object} properties.options\n   */\n  handleSearchCallback(e, { results, options }) {\n    this.matches = results.matches;\n    this.setCurrentMatchIndex();\n    this.teardownSearchNavigation();\n    this.renderSearchNavigation();\n    this.bindSearchNavigationEvents();\n    this.renderPins(results.matches);\n    this.toggleSearchPending(false);\n    if (options.goToFirstResult) {\n      $(document).one('BookReader:pageChanged', () => {\n        this.br.resize();\n      });\n    } else {\n      this.br.resize();\n    }\n  }\n\n  /**\n   * @param {Event} e\n   */\n  handleNavToggledCallback(e) {\n    const is_visible = this.br.navigationIsVisible();\n    this.togglePinsFor(is_visible);\n  }\n\n  handleSearchStarted() {\n    this.emptyMatches();\n    this.br.removeSearchHilites();\n    this.removeResultPins();\n    this.toggleSearchPending(true);\n    this.teardownSearchNavigation();\n    this.setQuery(this.br.searchTerm);\n  }\n\n  /**\n   * Event listener for: `BookReader:SearchCallbackError`\n   * @param {CustomEvent} event\n   */\n  handleSearchCallbackError(event = {}) {\n    this.toggleSearchPending(false);\n    const isIndexed = event?.detail?.props?.results?.indexed;\n    this.renderErrorModal(isIndexed);\n  }\n\n  handleSearchCallbackBookNotIndexed() {\n    this.toggleSearchPending(false);\n    this.renderBookNotIndexedModal();\n  }\n\n  handleSearchCallbackEmpty() {\n    this.toggleSearchPending(false);\n    this.renderResultsEmptyModal();\n  }\n\n  bindEvents() {\n    const namespace = 'BookReader:';\n\n    window.addEventListener(`${namespace}SearchCallbackError`, this.handleSearchCallbackError.bind(this));\n    $(document).on(`${namespace}SearchCallback`, this.handleSearchCallback.bind(this))\n      .on(`${namespace}navToggled`, this.handleNavToggledCallback.bind(this))\n      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@ts-check\n/* global BookReader */\n/**\n * Plugin for Archive.org book search\n * NOTE: This script must be loaded AFTER `plugin.mobile_nav.js`\n * as it mutates mobile nav drawer\n *\n * Events fired at various points throughout search processing are published\n * on the document DOM element. These can be subscribed to using jQuery's event\n * binding method `$.fn.on`. All of the events are prefixed with a BookReader\n * namespace. The events are:\n *\n * @event BookReader:SearchStarted - When a search form is submitted, immediately\n *   before an AJAX call is made to request search results\n * @event BookReader:SearchCallback - When the search AJAX call is returned and at\n *   least one result is returned. The event callback receives an object\n *   with the `results`, plugin `options`, and the BookReader `instance`\n * @event BookReader:SearchCallbackError - When the AJAX request returns an error.\n *   Receives the `results` and `instance`\n * @event BookReader:SearchCallbackNotIndexed - When a message is received that\n *   the book has not had OCR text indexed yet. Receives `instance`\n * @event BookReader:SearchCallbackEmpty - When no results found. Receives\n *   `instance`\n * @event BookReader:SearchCanceled - When no results found. Receives\n *   `instance`\n */\nimport { poll } from '../../BookReader/utils.js';\nimport { renderBoxesInPageContainerLayer } from '../../BookReader/PageContainer.js';\nimport SearchView from './view.js';\n/** @typedef {import('../../BookReader/PageContainer').PageContainer} PageContainer */\n/** @typedef {import('../../BookReader/BookModel').PageIndex} PageIndex */\n/** @typedef {import('../../BookReader/BookModel').LeafNum} LeafNum */\n/** @typedef {import('../../BookReader/BookModel').PageNumString} PageNumString */\n\njQuery.extend(BookReader.defaultOptions, {\n  server: 'ia600609.us.archive.org',\n  bookId: '',\n  subPrefix: '',\n  bookPath: '',\n  enableSearch: true,\n  searchInsideUrl: '/fulltext/inside.php',\n  initialSearchTerm: null,\n});\n\n/** @override */\nBookReader.prototype.setup = (function (super_) {\n  return function (options) {\n    super_.call(this, options);\n\n    this.searchTerm = '';\n    this.searchResults = null;\n    this.searchInsideUrl = options.searchInsideUrl;\n    this.enableSearch = options.enableSearch;\n\n    // Base server used by some api calls\n    this.bookId = options.bookId;\n    this.server = options.server;\n    this.subPrefix = options.subPrefix;\n    this.bookPath = options.bookPath;\n\n    this.searchXHR = null;\n    this._cancelSearch.bind(this);\n    this.cancelSearchRequest.bind(this);\n\n    /** @type { {[pageIndex: number]: SearchInsideMatchBox[]} } */\n    this._searchBoxesByIndex = {};\n\n    this.searchView = undefined;\n  };\n})(BookReader.prototype.setup);\n\n/** @override */\nBookReader.prototype.init = (function (super_) {\n  return function () {\n    super_.call(this);\n    // give SearchView the most complete bookreader state\n    this.searchView = new SearchView({\n      br: this,\n      searchCancelledCallback: () => {\n        this._cancelSearch();\n        this.trigger('SearchCanceled', { term: this.searchTerm, instance: this });\n      }\n    });\n    if (this.options.enableSearch && this.options.initialSearchTerm) {\n      /**\n       * this.search() take two parameter\n       * 1. this.options.initialSearchTerm - search term\n       * 2. {\n       *  goToFirstResult: this.options.goToFirstResult,\n       *  suppressFragmentChange: false // always want to change fragment in URL\n       * }\n       */\n      this.search(\n        this.options.initialSearchTerm,\n        { goToFirstResult: this.options.goToFirstResult, suppressFragmentChange: false }\n      );\n    }\n  };\n})(BookReader.prototype.init);\n\n/** @override */\nBookReader.prototype.buildToolbarElement = (function (super_) {\n  return function () {\n    const $el = super_.call(this);\n    if (!this.enableSearch) { return; }\n    if (this.searchView.dom.toolbarSearch) {\n      $el.find('.BRtoolbarSectionInfo').after(this.searchView.dom.toolbarSearch);\n    }\n    return $el;\n  };\n})(BookReader.prototype.buildToolbarElement);\n\n/** @override */\nBookReader.prototype._createPageContainer = (function (super_) {\n  return function (index) {\n    const pageContainer = super_.call(this, index);\n    if (this.enableSearch && pageContainer.page && index in this._searchBoxesByIndex) {\n      const pageIndex = pageContainer.page.index;\n      const boxes = this._searchBoxesByIndex[pageIndex];\n      renderBoxesInPageContainerLayer(\n        'searchHiliteLayer',\n        boxes,\n        pageContainer.page,\n        pageContainer.$container[0],\n        boxes.map(b => `match-index-${b.matchIndex}`),\n      );\n    }\n    return pageContainer;\n  };\n})(BookReader.prototype._createPageContainer);\n\n/**\n * @typedef {object} SearchOptions\n * @property {boolean} goToFirstResult\n * @property {boolean} disablePopup\n * @property {(null|function)} error - @deprecated at v.5.0\n * @property {(null|function)} success - @deprecated at v.5.0\n */\n\n/**\n * Submits search request\n *\n * @param {string} term\n * @param {SearchOptions} overrides\n */\nBookReader.prototype.search = async function(term = '', overrides = {}) {\n  /** @type {SearchOptions} */\n  const defaultOptions = {\n    goToFirstResult: false, /* jump to the first result (default=false) */\n    disablePopup: false,    /* don't show the modal progress (default=false) */\n    suppressFragmentChange: false, /* don't change the URL on initial load */\n    error: null,            /* optional error handler (default=null) */\n    success: null,          /* optional success handler (default=null) */\n\n  };\n  const options = jQuery.extend({}, defaultOptions, overrides);\n  this.suppressFragmentChange = options.suppressFragmentChange;\n  this.searchCancelled = false;\n\n  // strip slashes, since this goes in the url\n  this.searchTerm = term.replace(/\\//g, ' ');\n\n  if (!options.suppressFragmentChange) {\n    this.trigger(BookReader.eventNames.fragmentChange);\n  }\n\n  // Add quotes to the term. This is to compenstate for the backends default OR query\n  // term = term.replace(/['\"]+/g, '');\n  // term = '\"' + term + '\"';\n\n  // Remove the port and userdir\n  const serverPath = this.server.replace(/:.+/, '');\n  const baseUrl = `https://${serverPath}${this.searchInsideUrl}?`;\n\n  // Remove subPrefix from end of path\n  let path = this.bookPath;\n  const subPrefixWithSlash = `/${this.subPrefix}`;\n  if (this.bookPath.length - this.bookPath.lastIndexOf(subPrefixWithSlash) == subPrefixWithSlash.length) {\n    path = this.bookPath.substr(0, this.bookPath.length - subPrefixWithSlash.length);\n  }\n\n  const urlParams = {\n    item_id: this.bookId,\n    doc: this.subPrefix,\n    path,\n    q: term,\n  };\n\n  // NOTE that the API does not expect / (slashes) to be encoded. (%2F) won't work\n  const paramStr = $.param(urlParams).replace(/%2F/g, '/');\n\n  const url = `${baseUrl}${paramStr}`;\n\n  const callSearchResultsCallback = (searchInsideResults) => {\n    if (this.searchCancelled) {\n      return;\n    }\n    const responseHasError = searchInsideResults.error || !searchInsideResults.matches.length;\n    const hasCustomError = typeof options.error === 'function';\n    const hasCustomSuccess = typeof options.success === 'function';\n\n    if (responseHasError) {\n      console.error('Search Inside Response Error', searchInsideResults.error || 'matches.length == 0');\n      hasCustomError\n        ? options.error.call(this, searchInsideResults, options)\n        : this.BRSearchCallbackError(searchInsideResults, options);\n    } else {\n      hasCustomSuccess\n        ? options.success.call(this, searchInsideResults, options)\n        : this.BRSearchCallback(searchInsideResults, options);\n    }\n  };\n\n  this.trigger('SearchStarted', { term: this.searchTerm, instance: this });\n  callSearchResultsCallback(await $.ajax({\n    url: url,\n    dataType: 'jsonp',\n    cache: true,\n    beforeSend: xhr => { this.searchXHR = xhr; },\n  }));\n};\n\n/**\n * cancels AJAX Call\n * emits custom event\n */\nBookReader.prototype._cancelSearch = function () {\n  this.searchXHR?.abort();\n  this.searchView.clearSearchFieldAndResults(false);\n  this.searchTerm = '';\n  this.searchXHR = null;\n  this.searchCancelled = true;\n  this.searchResults = [];\n};\n\n/**\n * External function to cancel search\n * checks for term & xhr in flight before running\n */\nBookReader.prototype.cancelSearchRequest = function () {\n  this.searchCancelled = true;\n  if (this.searchXHR !== null) {\n    this._cancelSearch();\n    this.searchView.toggleSearchPending();\n    this.trigger('SearchCanceled', { term: this.searchTerm, instance: this });\n  }\n};\n\n/**\n  * @typedef {object} SearchInsideMatchBox\n  * @property {number} page\n  * @property {number} r\n  * @property {number} l\n  * @property {number} b\n  * @property {number} t\n  * @property {HTMLDivElement} [div]\n  * @property {number} matchIndex This is a fake field! not part of the API response. The index of the match that contains this box in total search results matches.\n  */\n\n/**\n * @typedef {object} SearchInsideMatch\n * @property {number} matchIndex This is a fake field! Not part of the API response. It is added by the JS.\n * @property {string} displayPageNumber (fake field) The page number as it should be displayed in the UI.\n * @property {string} text\n * @property {Array<{ page: number, boxes: SearchInsideMatchBox[] }>} par\n */\n\n/**\n * @typedef {object} SearchInsideResults\n * @property {string} error\n * @property {SearchInsideMatch[]} matches\n * @property {boolean} indexed\n */\n\n/**\n * Attach some fields to search inside results\n * @param {SearchInsideResults} results\n * @param {(pageNum: LeafNum) => PageNumString} displayPageNumberFn\n */\nexport function marshallSearchResults(results, displayPageNumberFn) {\n  // Attach matchIndex to a few things to make it easier to identify\n  // an active/selected match\n  for (const [index, match] of results.matches.entries()) {\n    match.matchIndex = index;\n    match.displayPageNumber = displayPageNumberFn(match.par[0].page);\n    for (const par of match.par) {\n      for (const box of par.boxes) {\n        box.matchIndex = index;\n      }\n    }\n  }\n}\n\n/**\n * Search Results return handler\n * @param {SearchInsideResults} results\n * @param {object} options\n * @param {boolean} options.goToFirstResult\n */\nBookReader.prototype.BRSearchCallback = function(results, options) {\n  marshallSearchResults(results, pageNum => this.book.getPageNum(this.book.leafNumToIndex(pageNum)));\n  this.searchResults = results || [];\n\n  this.updateSearchHilites();\n  this.removeProgressPopup();\n  if (options.goToFirstResult) {\n    this._searchPluginGoToResult(0);\n  }\n  this.trigger('SearchCallback', { results, options, instance: this });\n};\n\n/**\n * Main search results error handler\n * @callback\n * @param {SearchInsideResults} results\n */\nBookReader.prototype.BRSearchCallbackError = function(results) {\n  this._BRSearchCallbackError(results);\n};\n\n/**\n * @private draws search results error\n * @callback\n * @param {SearchInsideResults} results\n * @param {jQuery} $el\n * @param {boolean} fade\n */\nBookReader.prototype._BRSearchCallbackError = function(results) {\n  this.searchResults = results;\n  const basePayload = {\n    term: this.searchTerm,\n    instance: this,\n  };\n  if (results.error) {\n    const payload = Object.assign({}, basePayload, { results });\n    this.trigger('SearchCallbackError', payload);\n  } else if (0 == results.matches.length) {\n    if (false === results.indexed) {\n      this.trigger('SearchCallbackBookNotIndexed', basePayload);\n      return;\n    }\n    this.trigger('SearchCallbackEmpty', basePayload);\n  }\n};\n\n/**\n * updates search on-page highlights controller\n */\nBookReader.prototype.updateSearchHilites = function() {\n  /** @type {SearchInsideMatch[]} */\n  const matches = this.searchResults?.matches || [];\n  /** @type { {[pageIndex: number]: SearchInsideMatchBox[]} } */\n  const boxesByIndex = {};\n\n  // Clear any existing svg layers\n  this.removeSearchHilites();\n\n  // Group by pageIndex\n  for (const match of matches) {\n    for (const box of match.par[0].boxes) {\n      const pageIndex = this.book.leafNumToIndex(box.page);\n      const pageBoxes = boxesByIndex[pageIndex] || (boxesByIndex[pageIndex] = []);\n      pageBoxes.push(box);\n    }\n  }\n\n  // update any already created pages\n  for (const [pageIndexString, boxes] of Object.entries(boxesByIndex)) {\n    const pageIndex = parseFloat(pageIndexString);\n    const page = this.book.getPage(pageIndex);\n    const pageContainers = this.getActivePageContainerElementsForIndex(pageIndex);\n    for (const container of pageContainers) {\n      renderBoxesInPageContainerLayer('searchHiliteLayer', boxes, page, container, boxes.map(b => `match-index-${b.matchIndex}`));\n    }\n  }\n\n  this._searchBoxesByIndex = boxesByIndex;\n};\n\n/**\n * remove search highlights\n */\nBookReader.prototype.removeSearchHilites = function() {\n  $(this.getActivePageContainerElements()).find('.searchHiliteLayer').remove();\n};\n\n/**\n * @private\n * Goes to the page specified. If the page is not viewable, tries to load the page\n * FIXME Most of this logic is IA specific, and should be less integrated into here\n * or at least more configurable.\n * @param {number} matchIndex\n */\nBookReader.prototype._searchPluginGoToResult = async function (matchIndex) {\n  const match = this.searchResults?.matches[matchIndex];\n  const book = this.book;\n  const pageIndex = book.leafNumToIndex(match.par[0].page);\n  const page = book.getPage(pageIndex);\n  const onNearbyPage = Math.abs(this.currentIndex() - pageIndex) < 3;\n  let makeUnviewableAtEnd = false;\n  if (!page.isViewable) {\n    const resp = await fetch('/services/bookreader/request_page?' + new URLSearchParams({\n      id: this.options.bookId,\n      subprefix: this.options.subPrefix,\n      leafNum: page.leafNum,\n    })).then(r => r.json());\n\n    for (const leafNum of resp.value) {\n      book.getPage(book.leafNumToIndex(leafNum)).makeViewable();\n    }\n\n    // not able to show page; make the page viewable anyways so that it can\n    // actually open. On IA, it has a fallback to a special error page.\n    if (!resp.value.length) {\n      book.getPage(pageIndex).makeViewable();\n      makeUnviewableAtEnd = true;\n    }\n\n    // Trigger an update of book\n    this._modes.mode1Up.mode1UpLit.updatePages();\n    if (this.activeMode == this._modes.mode1Up) {\n      await this._modes.mode1Up.mode1UpLit.updateComplete;\n    }\n  }\n  /* this updates the URL */\n  if (!this._isIndexDisplayed(pageIndex)) {\n    this.suppressFragmentChange = false;\n    this.jumpToIndex(pageIndex);\n  }\n\n  // Reset it to unviewable if it wasn't resolved\n  if (makeUnviewableAtEnd) {\n    book.getPage(pageIndex).makeViewable(false);\n  }\n\n  // Scroll/flash in the ui\n  const $boxes = await poll(() => $(`rect.match-index-${match.matchIndex}`), { until: result => result.length > 0 });\n  if ($boxes.length) {\n    $boxes.css('animation', 'none');\n    $boxes[0].scrollIntoView({\n      // Only vertically center the highlight if we're in 1up or in full screen. In\n      // 2up, if we're not fullscreen, the whole body gets scrolled around to try to\n      // center the highlight 🙄 See:\n      // https://stackoverflow.com/questions/11039885/scrollintoview-causing-the-whole-page-to-move/11041376\n      // Note: nearest doesn't quite work great, because the ReadAloud toolbar is now\n      // full-width, and covers up the last line of the highlight.\n      block: this.constMode1up == this.mode || this.isFullscreenActive ? 'center' : 'nearest',\n      inline: 'center',\n      behavior: onNearbyPage ? 'smooth' : 'auto',\n    });\n    // wait for animation to start\n    await new Promise(resolve => setTimeout(resolve, 100));\n    $boxes.removeAttr(\"style\");\n  }\n};\n\n/**\n * Removes all search pins\n */\nBookReader.prototype.removeSearchResults = function(suppressFragmentChange = false) {\n  this.removeSearchHilites(); //be sure to set all box.divs to null\n  this.searchTerm = null;\n  this.searchResults = null;\n  if (!suppressFragmentChange) {\n    this.trigger(BookReader.eventNames.fragmentChange);\n  }\n};\n\n/**\n * Returns true if a search highlight is currently being displayed\n * @returns {boolean}\n */\nBookReader.prototype.searchHighlightVisible = function() {\n  const results = this.searchResults;\n  let visiblePages = [];\n  if (null == results) return false;\n\n  if (this.constMode2up == this.mode) {\n    visiblePages = [this.twoPage.currentIndexL, this.twoPage.currentIndexR];\n  } else if (this.constMode1up == this.mode) {\n    visiblePages = [this.currentIndex()];\n  } else {\n    return false;\n  }\n\n  results.matches.some(match => {\n    return match.par[0].boxes.some(box => {\n      const pageIndex = this.book.leafNumToIndex(box.page);\n      if (jQuery.inArray(pageIndex, visiblePages) >= 0) {\n        return true;\n      }\n    });\n  });\n\n  return false;\n};\n","import { escapeHTML } from \"../../BookReader/utils.js\";\n\nclass SearchView {\n  /**\n   * @param {object} params\n   * @param {object} params.br The BookReader instance\n   * @param {function} params.cancelSearch callback when a user wants to cancel search\n   *\n   * @event BookReader:SearchResultsCleared - when the search results nav gets cleared\n   * @event BookReader:ToggleSearchMenu - when search results menu should toggle\n   */\n  constructor({ br, searchCancelledCallback = () => {} }) {\n    this.br = br;\n\n    // Search results are returned as a text blob with the hits wrapped in\n    // triple mustaches. Hits occasionally include text beyond the search\n    // term, so everything within the staches is captured and wrapped.\n    this.matcher = new RegExp('{{{([^]+?)}}}', 'g'); // [^] matches any character, including line breaks\n    this.matches = [];\n    this.cacheDOMElements();\n    this.bindEvents();\n    this.cancelSearch = searchCancelledCallback;\n  }\n\n  cacheDOMElements() {\n    this.dom = {};\n    // Search input within the top toolbar. Will be removed once the mobile menu is replaced.\n    this.dom.toolbarSearch = this.buildToolbarSearch();\n  }\n\n  /**\n   * @param {string} query\n   */\n  setQuery(query) {\n    this.br.$('[name=\"query\"]').val(query);\n  }\n\n  emptyMatches() {\n    this.matches = [];\n  }\n\n  removeResultPins() {\n    this.br.$('.BRnavpos .BRsearch').remove();\n  }\n\n  clearSearchFieldAndResults(dispatchEventWhenComplete = true) {\n    this.br.removeSearchResults();\n    this.removeResultPins();\n    this.emptyMatches();\n    this.setQuery('');\n    this.teardownSearchNavigation();\n    if (dispatchEventWhenComplete) {\n      this.br.trigger('SearchResultsCleared');\n    }\n  }\n\n  toggleSidebar() {\n    this.br.trigger('ToggleSearchMenu');\n  }\n\n  renderSearchNavigation() {\n    const selector = 'BRsearch-navigation';\n    $('.BRnav').before(`\n      <div class=\"${selector}\">\n        <button class=\"toggle-sidebar\">\n          <h4>\n            <span class=\"icon icon-search\"></span> Results\n          </h4>\n        </button>\n        <div class=\"pagination\">\n          <button class=\"prev\" title=\"Previous result\"><span class=\"icon icon-chevron hflip\"></span></button>\n          <span data-id=\"resultsCount\">${this.resultsPosition()}</span>\n          <button class=\"next\" title=\"Next result\"><span class=\"icon icon-chevron\"></button>\n        </div>\n        <button class=\"clear\" title=\"Clear search results\">\n          <span class=\"icon icon-close\"></span>\n        </button>\n      </div>\n    `);\n    this.dom.searchNavigation = $(`.${selector}`);\n  }\n\n  resultsPosition() {\n    let positionMessage = `${this.matches.length} result${this.matches.length === 1 ? '' : 's'}`;\n    if (~this.currentMatchIndex) {\n      positionMessage = `${this.currentMatchIndex + 1} / ${this.matches.length}`;\n    }\n    return positionMessage;\n  }\n\n  bindSearchNavigationEvents() {\n    if (!this.dom.searchNavigation) { return; }\n    const namespace = 'searchNavigation';\n\n    this.dom.searchNavigation\n      .on(`click.${namespace}`, '.clear', this.clearSearchFieldAndResults.bind(this))\n      .on(`click.${namespace}`, '.prev', this.showPrevResult.bind(this))\n      .on(`click.${namespace}`, '.next', this.showNextResult.bind(this))\n      .on(`click.${namespace}`, '.toggle-sidebar', this.toggleSidebar.bind(this))\n      .on(`click.${namespace}`, false);\n  }\n\n  showPrevResult() {\n    if (this.currentMatchIndex === 0) { return; }\n    if (this.br.mode === this.br.constModeThumb) { this.br.switchMode(this.br.constMode1up); }\n    if (!~this.currentMatchIndex) {\n      this.currentMatchIndex = this.getClosestMatchIndex((start, end, comparator) => end[0] > comparator) + 1;\n    }\n    this.br.$('.BRnavline .BRsearch').eq(--this.currentMatchIndex).click();\n    this.updateResultsPosition();\n    this.updateSearchNavigationButtons();\n  }\n\n  showNextResult() {\n    if (this.currentMatchIndex + 1 === this.matches.length) { return; }\n    if (this.br.mode === this.br.constModeThumb) { this.br.switchMode(this.br.constMode1up); }\n    if (!~this.currentMatchIndex) {\n      this.currentMatchIndex = this.getClosestMatchIndex((start, end, comparator) => start[start.length - 1] > comparator) - 1;\n    }\n    this.br.$('.BRnavline .BRsearch').eq(++this.currentMatchIndex).click();\n    this.updateResultsPosition();\n    this.updateSearchNavigationButtons();\n  }\n\n  /**\n   * Obtains closest match based on the logical comparison function passed in.\n   * When the comparison function returns true, the starting (left) half of the\n   * matches array is used in the binary split, else the ending (right) half is\n   * used. A recursive call is made to perform the same split and comparison\n   * on the winning half of the matches. This is traditionally known as binary\n   * search (https://en.wikipedia.org/wiki/Binary_search_algorithm), and in\n   * most cases (medium to large search result arrays) should outperform\n   * traversing the array from start to finish. In the case of small arrays,\n   * the speed difference is negligible.\n   *\n   * @param {function} comparisonFn\n   * @return {number} matchIndex\n   */\n  getClosestMatchIndex(comparisonFn) {\n    const matchPages = this.matches.map((m) => m.par[0].page);\n    const currentPage = this.br.currentIndex() + 1;\n    const closestTo = (pool, comparator) => {\n      if (pool.length === 1) { return pool[0]; }\n      const start = pool.slice(0, pool.length / 2);\n      const end = pool.slice(pool.length / 2);\n      return closestTo((comparisonFn(start, end, comparator) ? start : end), comparator);\n    };\n\n    const closestPage = closestTo(matchPages, currentPage);\n    return this.matches.indexOf(this.matches.find((m) => m.par[0].page === closestPage));\n  }\n\n  updateResultsPosition() {\n    if (!this.dom.searchNavigation) return;\n    this.dom.searchNavigation.find('[data-id=resultsCount]').text(this.resultsPosition());\n  }\n\n  updateSearchNavigationButtons() {\n    if (!this.dom.searchNavigation) return;\n    this.dom.searchNavigation.find('.prev').attr('disabled', !this.currentMatchIndex);\n    this.dom.searchNavigation.find('.next').attr('disabled', this.currentMatchIndex + 1 === this.matches.length);\n  }\n\n  teardownSearchNavigation() {\n    if (!this.dom.searchNavigation) {\n      this.dom.searchNavigation = $('.BRsearch-navigation');\n    }\n    if (!this.dom.searchNavigation.length) { return; }\n\n    this.dom.searchNavigation.off('.searchNavigation').remove();\n    this.dom.searchNavigation = null;\n    this.br.resize();\n  }\n\n  setCurrentMatchIndex() {\n    let matchingSearchResult;\n    if (this.br.mode === this.br.constModeThumb) {\n      this.currentMatchIndex = -1;\n      return;\n    }\n    if (this.br.mode === this.br.constMode2up) {\n      matchingSearchResult = this.find2upMatchingSearchResult();\n    }\n    else {\n      matchingSearchResult = this.find1upMatchingSearchResult();\n    }\n    this.currentMatchIndex = this.matches.indexOf(matchingSearchResult);\n  }\n\n  find1upMatchingSearchResult() {\n    return this.matches.find((m) => this.br.currentIndex() === m.par[0].page - 1);\n  }\n\n  find2upMatchingSearchResult() {\n    return this.matches.find((m) => this.br._isIndexDisplayed(m.par[0].page - 1));\n  }\n\n  updateSearchNavigation() {\n    if (!this.matches.length) { return; }\n\n    this.setCurrentMatchIndex();\n    this.updateResultsPosition();\n    this.updateSearchNavigationButtons();\n  }\n\n  /**\n   * @param {boolean} bool\n   */\n  togglePinsFor(bool) {\n    const pinsVisibleState = bool ? 'visible' : 'hidden';\n    this.br.refs.$BRfooter.find('.BRsearch').css({ visibility: pinsVisibleState });\n  }\n\n  buildToolbarSearch() {\n    const toolbarSearch = document.createElement('span');\n    toolbarSearch.classList.add('BRtoolbarSection', 'BRtoolbarSectionSearch');\n    toolbarSearch.innerHTML = `\n      <form class=\"BRbooksearch desktop\">\n        <input type=\"search\" name=\"query\" class=\"BRsearchInput\" value=\"\" placeholder=\"Search inside\"/>\n        <button type=\"submit\" class=\"BRsearchSubmit\">\n          <img src=\"${this.br.imagesBaseURL}icon_search_button.svg\" />\n        </button>\n      </form>\n    `;\n    return toolbarSearch;\n  }\n\n  /**\n   * @param {array} matches\n   */\n  renderPins(matches) {\n    matches.forEach((match) => {\n      const queryString = match.text;\n      const pageIndex = this.br.book.leafNumToIndex(match.par[0].page);\n      const uiStringSearch = \"Search result\"; // i18n\n\n      const percentThrough = this.br.constructor.util.cssPercentage(pageIndex, this.br.book.getNumLeafs() - 1);\n\n      const escapedQueryString = escapeHTML(queryString);\n      const queryStringWithB = escapedQueryString.replace(this.matcher, '<b>$1</b>');\n\n      let queryStringWithBTruncated = '';\n\n      if (queryString.length > 100) {\n        queryStringWithBTruncated = queryString.replace(/^(.{100}[^\\s]*).*/, \"$1\");\n\n        // If truncating, we must escape *after* truncation occurs (but before wrapping in <b>)\n        queryStringWithBTruncated = escapeHTML(queryStringWithBTruncated)\n          .replace(this.matcher, '<b>$1</b>')\n          + '...';\n      }\n\n      // draw marker\n      $('<div>')\n        .addClass('BRsearch')\n        .css({\n          left: percentThrough,\n        })\n        .attr('title', uiStringSearch)\n        .append(`\n          <div class=\"BRquery\">\n            <div>${queryStringWithBTruncated || queryStringWithB}</div>\n            <div>Page ${match.displayPageNumber}</div>\n          </div>\n        `)\n        .appendTo(this.br.$('.BRnavline'))\n        .on(\"mouseenter\", (event) => {\n          // remove from other markers then turn on just for this\n          // XXX should be done when nav slider moves\n          const marker = event.currentTarget;\n          const tooltip = marker.querySelector('.BRquery');\n          const tooltipOffset = tooltip.getBoundingClientRect();\n          const targetOffset = marker.getBoundingClientRect();\n          const boxSizeAdjust = parseInt(getComputedStyle(tooltip).paddingLeft) * 2;\n          if (tooltipOffset.x - boxSizeAdjust < 0) {\n            tooltip.style.setProperty('transform', `translateX(-${targetOffset.left - boxSizeAdjust}px)`);\n          }\n          $('.BRsearch,.BRchapter').removeClass('front');\n          $(event.target).addClass('front');\n        })\n        .on(\"mouseleave\", (event) => $(event.target).removeClass('front'))\n        .on(\"click\", () => { this.br._searchPluginGoToResult(match.matchIndex); });\n    });\n  }\n\n  /**\n   * @param {boolean} bool\n   */\n  toggleSearchPending(bool) {\n    if (bool) {\n      this.br.showProgressPopup(\"Search results will appear below...\", () => this.progressPopupClosed());\n    }\n    else {\n      this.br.removeProgressPopup();\n    }\n  }\n\n  /**\n   * Primary callback when user cancels search popup\n   */\n  progressPopupClosed() {\n    this.toggleSearchPending();\n    this.cancelSearch();\n  }\n\n  renderErrorModal(textIsProcessing = false) {\n    const errorDetails = `${!textIsProcessing ? 'The text may still be processing. ' : ''}Please try again.`;\n    this.renderModalMessage(`\n      Sorry, there was an error with your search.\n      <br />\n      ${errorDetails}\n    `);\n    this.delayModalRemovalFor(4000);\n  }\n\n  renderBookNotIndexedModal() {\n    this.renderModalMessage(`\n      <p>\n         This book hasn't been indexed for searching yet.\n         We've just started indexing it, so search should be available soon.\n         <br />\n         Please try again later. Thanks!\n      </p>\n    `);\n    this.delayModalRemovalFor(5000);\n  }\n\n  renderResultsEmptyModal() {\n    this.renderModalMessage('No matches were found.');\n    this.delayModalRemovalFor(2000);\n  }\n\n  /**\n   * @param {string} messageHTML The innerHTML string used to popupate the modal contents\n   */\n  renderModalMessage(messageHTML) {\n    const modal = document.createElement('div');\n    modal.classList.add('BRprogresspopup', 'search_modal');\n    modal.innerHTML = messageHTML;\n    document.querySelector(this.br.el).append(modal);\n  }\n\n  /**\n   * @param {number} timeoutMS\n   */\n  delayModalRemovalFor(timeoutMS) {\n    setTimeout(this.br.removeProgressPopup.bind(this.br), timeoutMS);\n  }\n\n  /**\n   * @param {Event} e\n   */\n  submitHandler(e) {\n    e.preventDefault();\n    const query = e.target.querySelector('[name=\"query\"]').value;\n    if (!query.length) { return false; }\n    this.br.search(query);\n    this.emptyMatches();\n    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   this.toggleSearchPending(true);\n    this.teardownSearchNavigation();\n    this.setQuery(this.br.searchTerm);\n  }\n\n  /**\n   * Event listener for: `BookReader:SearchCallbackError`\n   * @param {CustomEvent} event\n   */\n  handleSearchCallbackError(event = {}) {\n    this.toggleSearchPending(false);\n    const isIndexed = event?.detail?.props?.results?.indexed;\n    this.renderErrorModal(isIndexed);\n  }\n\n  handleSearchCallbackBookNotIndexed() {\n    this.toggleSearchPending(false);\n    this.renderBookNotIndexedModal();\n  }\n\n  handleSearchCallbackEmpty() {\n    this.toggleSearchPending(false);\n    this.renderResultsEmptyModal();\n  }\n\n  bindEvents() {\n    const namespace = 'BookReader:';\n\n    window.addEventListener(`${namespace}SearchCallbackError`, this.handleSearchCallbackError.bind(this));\n    $(document).on(`${namespace}SearchCallback`, this.handleSearchCallback.bind(this))\n      .on(`${namespace}navToggled`, this.handleNavToggledCallback.bind(this))\n      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\ No newline at end of file
diff --git a/BookReader/plugins/plugin.text_selection.js b/BookReader/plugins/plugin.text_selection.js
index 2430cc449..f23b5b0ee 100644
--- a/BookReader/plugins/plugin.text_selection.js
+++ b/BookReader/plugins/plugin.text_selection.js
@@ -1,2 +1,2 @@
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+++ b/BookReader/plugins/plugin.text_selection.js.map
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* @typedef {String} StringWithVars\n * A template string with {{foo}} style variables\n * Also supports filters, like {{bookPath|urlencode}} (See APPLY_FILTERS for the\n * supported list of filters)\n **/\n\n/**\n * @param {StringWithVars|String} template\n * @param { {[varName: string]: { toString: () => string} } } vars\n * @param { {[varName: string]: { toString: () => string} } } [overrides]\n */\nexport function applyVariables(template, vars, overrides = {}, possibleFilters = APPLY_FILTERS) {\n  return template?.replace(/\\{\\{([^}]*?)\\}\\}/g, ($0, $1) => {\n    if (!$1) return $0;\n    /** @type {string} */\n    const expression = $1;\n    const [varName, ...filterNames] = expression.split('|').map(x => x.trim());\n    const defined = varName in overrides || varName in vars;\n\n    // If it's not defined, don't expand it at all\n    if (!defined) return $0;\n\n    const value = varName in overrides ? overrides[varName]\n      : varName in vars ? vars[varName] : null;\n    const filters = filterNames.map(n => possibleFilters[n]);\n    return filters.reduce((acc, cur) => cur(acc), value && value.toString());\n  });\n}\n\n/** @type { {[filterName: String]:( string => string)} } */\nexport const APPLY_FILTERS = {\n  urlencode: encodeURIComponent,\n};\n","//@ts-check\nimport { createSVGPageLayer } from '../BookReader/PageContainer.js';\nimport { isFirefox, isSafari } from '../util/browserSniffing.js';\nimport { applyVariables } from '../util/strings.js';\n/** @typedef {import('../util/strings.js').StringWithVars} StringWithVars */\n/** @typedef {import('../BookReader/PageContainer.js').PageContainer} PageContainer */\n\nconst BookReader = /** @type {typeof import('../BookReader').default} */(window.BookReader);\n\nexport const DEFAULT_OPTIONS = {\n  enabled: true,\n  /** @type {StringWithVars} The URL to fetch the entire DJVU xml. Supports options.vars */\n  fullDjvuXmlUrl: null,\n  /** @type {StringWithVars} The URL to fetch a single page of the DJVU xml. Supports options.vars. Also has {{pageIndex}} */\n  singlePageDjvuXmlUrl: null,\n  /** Whether to fetch the XML as a jsonp */\n  jsonp: false,\n};\n/** @typedef {typeof DEFAULT_OPTIONS} TextSelectionPluginOptions */\n\n/**\n * @template T\n */\nexport class Cache {\n  constructor(maxSize = 10) {\n    this.maxSize = maxSize;\n    /** @type {T[]} */\n    this.entries = [];\n  }\n\n  /**\n   * @param {T} entry\n   */\n  add(entry) {\n    if (this.entries.length >= this.maxSize) {\n      this.entries.shift();\n    }\n    this.entries.push(entry);\n  }\n}\n\nexport class TextSelectionPlugin {\n\n  constructor(options = DEFAULT_OPTIONS, optionVariables, avoidTspans = isFirefox(), pointerEventsOnParagraph = isSafari()) {\n    this.options = options;\n    this.optionVariables = optionVariables;\n    /**@type {PromiseLike<JQuery<HTMLElement>|undefined>} */\n    this.djvuPagesPromise = null;\n    // Using text elements instead of tspans for words because Firefox does not allow svg tspan stretch.\n    // Tspans are necessary on Chrome because they prevent newline character after every word when copying\n    this.svgParagraphElement = \"text\";\n    this.svgWordElement = \"tspan\";\n    this.insertNewlines = avoidTspans;\n    // Safari has a bug where `pointer-events` doesn't work on `<tspans>`. 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Not rendering text layer.`);\n      return;\n    }\n\n    const svg = createSVGPageLayer(pageContainer.page, 'textSelectionSVG');\n    $container.append(svg);\n\n    $(XMLpage).find(\"PARAGRAPH\").each((i, paragraph) => {\n      // Adding text element for each paragraph in the page\n      const words = $(paragraph).find(\"WORD\");\n      if (!words.length) return;\n      const paragSvg = document.createElementNS(\"http://www.w3.org/2000/svg\", this.svgParagraphElement);\n      paragSvg.setAttribute(\"class\", \"BRparagElement\");\n      if (this.pointerEventsOnParagraph) {\n        paragSvg.style.pointerEvents = \"all\";\n      }\n\n      const wordHeightArr = [];\n\n      for (let i = 0; i < words.length; i++) {\n        // Adding tspan for each word in paragraph\n        const currWord = words[i];\n        // eslint-disable-next-line no-unused-vars\n        const [left, bottom, right, top] = $(currWord).attr(\"coords\").split(',').map(parseFloat);\n        const wordHeight = bottom - top;\n        wordHeightArr.push(wordHeight);\n\n        const wordTspan = document.createElementNS(\"http://www.w3.org/2000/svg\", this.svgWordElement);\n        wordTspan.setAttribute(\"class\", \"BRwordElement\");\n        wordTspan.setAttribute(\"x\", left.toString());\n        wordTspan.setAttribute(\"y\", bottom.toString());\n        wordTspan.setAttribute(\"textLength\", (right - left).toString());\n        wordTspan.setAttribute(\"lengthAdjust\", \"spacingAndGlyphs\");\n        wordTspan.textContent = currWord.textContent;\n        paragSvg.appendChild(wordTspan);\n\n        // Adding spaces after words except at the end of the paragraph\n        // TODO: assumes left-to-right text\n        if (i < words.length - 1) {\n          const nextWord = words[i + 1];\n          // eslint-disable-next-line no-unused-vars\n          const [leftNext, bottomNext, rightNext, topNext] = $(nextWord).attr(\"coords\").split(',').map(parseFloat);\n          const spaceTspan = document.createElementNS(\"http://www.w3.org/2000/svg\", this.svgWordElement);\n          spaceTspan.setAttribute(\"class\", \"BRwordElement\");\n          spaceTspan.setAttribute(\"x\", right.toString());\n          spaceTspan.setAttribute(\"y\", bottom.toString());\n          if ((leftNext - right) > 0) spaceTspan.setAttribute(\"textLength\", (leftNext - right).toString());\n          spaceTspan.setAttribute(\"lengthAdjust\", \"spacingAndGlyphs\");\n          spaceTspan.textContent = \" \";\n          paragSvg.appendChild(spaceTspan);\n        }\n\n        // Adds newline at the end of paragraph on Firefox\n        if ((i ==  words.length - 1 && (this.insertNewlines))) {\n          paragSvg.appendChild(document.createTextNode(\"\\n\"));\n        }\n      }\n\n      wordHeightArr.sort();\n      const paragWordHeight = wordHeightArr[Math.floor(wordHeightArr.length * 0.85)];\n      paragSvg.setAttribute(\"font-size\", paragWordHeight.toString());\n      svg.appendChild(paragSvg);\n    });\n    this.stopPageFlip($container);\n  }\n}\n\nexport class BookreaderWithTextSelection extends BookReader {\n  init() {\n    const options = Object.assign({}, DEFAULT_OPTIONS, this.options.plugins.textSelection);\n    if (options.enabled) {\n      this.textSelectionPlugin = new TextSelectionPlugin(options, this.options.vars);\n      // Write this back; 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doesn't have .closest on it.\n    this.startedInSelector = $(ev.target).closest(this.selector).length > 0;\n  };\n\n  _onSelectionChange = () => {\n    if (this.loggedForSelection || !this.startedInSelector) return;\n    const sel = window.getSelection();\n    if (sel.toString()) {\n      this.loggedForSelection = true;\n      this.handler();\n    }\n  };\n}\n","/**\n * @typedef {String} StringWithVars\n * A template string with {{foo}} style variables\n * Also supports filters, like {{bookPath|urlencode}} (See APPLY_FILTERS for the\n * supported list of filters)\n **/\n\n/**\n * @param {StringWithVars|String} template\n * @param { {[varName: string]: { toString: () => string} } } vars\n * @param { {[varName: string]: { toString: () => string} } } [overrides]\n */\nexport function applyVariables(template, vars, overrides = {}, possibleFilters = APPLY_FILTERS) {\n  return template?.replace(/\\{\\{([^}]*?)\\}\\}/g, ($0, $1) => {\n    if (!$1) return $0;\n    /** @type {string} */\n    const expression = $1;\n    const [varName, ...filterNames] = expression.split('|').map(x => x.trim());\n    const defined = varName in overrides || varName in vars;\n\n    // If it's not defined, don't expand it at all\n    if (!defined) return $0;\n\n    const value = varName in overrides ? overrides[varName]\n      : varName in vars ? vars[varName] : null;\n    const filters = filterNames.map(n => possibleFilters[n]);\n    return filters.reduce((acc, cur) => cur(acc), value && value.toString());\n  });\n}\n\n/** @type { {[filterName: String]:( string => string)} } */\nexport const APPLY_FILTERS = {\n  urlencode: encodeURIComponent,\n};\n","//@ts-check\nimport { createSVGPageLayer } from '../BookReader/PageContainer.js';\nimport { SelectionStartedObserver } from '../BookReader/utils/SelectionStartedObserver.js';\nimport { isFirefox, isSafari } from '../util/browserSniffing.js';\nimport { applyVariables } from '../util/strings.js';\n/** @typedef {import('../util/strings.js').StringWithVars} StringWithVars */\n/** @typedef {import('../BookReader/PageContainer.js').PageContainer} PageContainer */\n\nconst BookReader = /** @type {typeof import('../BookReader').default} */(window.BookReader);\n\nexport const DEFAULT_OPTIONS = {\n  enabled: true,\n  /** @type {StringWithVars} The URL to fetch the entire DJVU xml. Supports options.vars */\n  fullDjvuXmlUrl: null,\n  /** @type {StringWithVars} The URL to fetch a single page of the DJVU xml. Supports options.vars. Also has {{pageIndex}} */\n  singlePageDjvuXmlUrl: null,\n  /** Whether to fetch the XML as a jsonp */\n  jsonp: false,\n};\n/** @typedef {typeof DEFAULT_OPTIONS} TextSelectionPluginOptions */\n\n/**\n * @template T\n */\nexport class Cache {\n  constructor(maxSize = 10) {\n    this.maxSize = maxSize;\n    /** @type {T[]} */\n    this.entries = [];\n  }\n\n  /**\n   * @param {T} entry\n   */\n  add(entry) {\n    if (this.entries.length >= this.maxSize) {\n      this.entries.shift();\n    }\n    this.entries.push(entry);\n  }\n}\n\nexport class TextSelectionPlugin {\n\n  constructor(options = DEFAULT_OPTIONS, optionVariables, avoidTspans = isFirefox(), pointerEventsOnParagraph = isSafari()) {\n    this.options = options;\n    this.optionVariables = optionVariables;\n    /**@type {PromiseLike<JQuery<HTMLElement>|undefined>} */\n    this.djvuPagesPromise = null;\n    // Using text elements instead of tspans for words because Firefox does not allow svg tspan stretch.\n    // Tspans are necessary on Chrome because they prevent newline character after every word when copying\n    this.svgParagraphElement = \"text\";\n    this.svgWordElement = \"tspan\";\n    this.insertNewlines = avoidTspans;\n    // Safari has a bug where `pointer-events` doesn't work on `<tspans>`. So\n    // there we will set `pointer-events: all` on the paragraph element. We don't\n    // do this everywhere, because it's a worse experience. Thanks Safari :/\n    this.pointerEventsOnParagraph = pointerEventsOnParagraph;\n    if (avoidTspans) {\n      this.svgParagraphElement = \"g\";\n      this.svgWordElement = \"text\";\n    }\n\n    /** @type {Cache<{index: number, response: any}>} */\n    this.pageTextCache = new Cache();\n\n    /**\n     * Sometimes there are too many words on a page, and the browser becomes near\n     * unusable. For now don't render text layer for pages with too many words.\n     */\n    this.maxWordRendered = 2500;\n  }\n\n  init() {\n    // Only fetch the full djvu xml if the single page url isn't there\n    if (this.options.singlePageDjvuXmlUrl) return;\n    this.djvuPagesPromise = $.ajax({\n      type: \"GET\",\n      url: applyVariables(this.options.fullDjvuXmlUrl, this.optionVariables),\n      dataType: this.options.jsonp ? \"jsonp\" : \"html\",\n      cache: true,\n      error: (e) => undefined\n    }).then((res) => {\n      try {\n        const xmlMap = $.parseXML(res);\n        return xmlMap && $(xmlMap).find(\"OBJECT\");\n      } catch (e) {\n        return undefined;\n      }\n    });\n  }\n\n  /**\n   * @param {number} index\n   * @returns {Promise<HTMLElement|undefined>}\n   */\n  async getPageText(index) {\n    if (this.options.singlePageDjvuXmlUrl) {\n      const cachedEntry = this.pageTextCache.entries.find(x => x.index == index);\n      if (cachedEntry) {\n        return cachedEntry.response;\n      }\n      const res = await $.ajax({\n        type: \"GET\",\n        url: applyVariables(this.options.singlePageDjvuXmlUrl, this.optionVariables, { pageIndex: index }),\n        dataType: this.options.jsonp ? \"jsonp\" : \"html\",\n        cache: true,\n        error: (e) => undefined,\n      });\n      try {\n        const xmlDoc = $.parseXML(res);\n        const result = xmlDoc && $(xmlDoc).find(\"OBJECT\")[0];\n        this.pageTextCache.add({ index, response: result });\n        return result;\n      } catch (e) {\n        return undefined;\n      }\n    } else {\n      const XMLpagesArr = await this.djvuPagesPromise;\n      if (XMLpagesArr) return XMLpagesArr[index];\n    }\n  }\n\n  /**\n   * Intercept copied text to remove any styling applied to it\n   * @param {JQuery} $container\n   */\n  interceptCopy($container) {\n    $container[0].addEventListener('copy', (event) => {\n      const selection = document.getSelection();\n      event.clipboardData.setData('text/plain', selection.toString());\n      event.preventDefault();\n    });\n  }\n\n  /**\n   * Applies mouse events when in default mode\n   * @param {SVGElement} svg\n   */\n  defaultMode(svg) {\n    svg.classList.remove(\"selectingSVG\");\n    $(svg).on(\"mousedown.textSelectPluginHandler\", (event) => {\n      if (!$(event.target).is(\".BRwordElement\")) return;\n      event.stopPropagation();\n      svg.classList.add(\"selectingSVG\");\n      $(svg).one(\"mouseup.textSelectPluginHandler\", (event) => {\n        if (window.getSelection().toString() != \"\") {\n          event.stopPropagation();\n          $(svg).off(\".textSelectPluginHandler\");\n          this.textSelectingMode(svg);\n        }\n        else svg.classList.remove(\"selectingSVG\");\n      });\n    });\n  }\n\n  /**\n   * Applies mouse events when in textSelecting mode\n   * @param {SVGElement} svg\n   */\n  textSelectingMode(svg) {\n    $(svg).on('mousedown.textSelectPluginHandler', (event) => {\n      if (!$(event.target).is(\".BRwordElement\")) {\n        if (window.getSelection().toString() != \"\") window.getSelection().removeAllRanges();\n      }\n      event.stopPropagation();\n    });\n    $(svg).on('mouseup.textSelectPluginHandler', (event) => {\n      event.stopPropagation();\n      if (window.getSelection().toString() == \"\") {\n        $(svg).off(\".textSelectPluginHandler\");\n        this.defaultMode(svg);      }\n    });\n  }\n\n  /**\n   * Initializes text selection modes if there is an svg on the page\n   * @param {JQuery} $container\n   */\n  stopPageFlip($container) {\n    /** @type {JQuery<SVGElement>} */\n    const $svg = $container.find('svg.textSelectionSVG');\n    if (!$svg.length) return;\n    $svg.each((i, s) => this.defaultMode(s));\n    this.interceptCopy($container);\n  }\n\n  /**\n   * @param {PageContainer} pageContainer\n   */\n  async createTextLayer(pageContainer) {\n    const pageIndex = pageContainer.page.index;\n    const $container = pageContainer.$container;\n    const $svgLayers = $container.find('.textSelectionSVG');\n    if ($svgLayers.length) return;\n    const XMLpage = await this.getPageText(pageIndex);\n    if (!XMLpage) return;\n\n    const totalWords = $(XMLpage).find(\"WORD\").length;\n    if (totalWords > this.maxWordRendered) {\n      console.log(`Page ${pageIndex} has too many words (${totalWords} > ${this.maxWordRendered}). Not rendering text layer.`);\n      return;\n    }\n\n    const svg = createSVGPageLayer(pageContainer.page, 'textSelectionSVG');\n    $container.append(svg);\n\n    $(XMLpage).find(\"PARAGRAPH\").each((i, paragraph) => {\n      // Adding text element for each paragraph in the page\n      const words = $(paragraph).find(\"WORD\");\n      if (!words.length) return;\n      const paragSvg = document.createElementNS(\"http://www.w3.org/2000/svg\", this.svgParagraphElement);\n      paragSvg.setAttribute(\"class\", \"BRparagElement\");\n      if (this.pointerEventsOnParagraph) {\n        paragSvg.style.pointerEvents = \"all\";\n      }\n\n      const wordHeightArr = [];\n\n      for (let i = 0; i < words.length; i++) {\n        // Adding tspan for each word in paragraph\n        const currWord = words[i];\n        // eslint-disable-next-line no-unused-vars\n        const [left, bottom, right, top] = $(currWord).attr(\"coords\").split(',').map(parseFloat);\n        const wordHeight = bottom - top;\n        wordHeightArr.push(wordHeight);\n\n        const wordTspan = document.createElementNS(\"http://www.w3.org/2000/svg\", this.svgWordElement);\n        wordTspan.setAttribute(\"class\", \"BRwordElement\");\n        wordTspan.setAttribute(\"x\", left.toString());\n        wordTspan.setAttribute(\"y\", bottom.toString());\n        wordTspan.setAttribute(\"textLength\", (right - left).toString());\n        wordTspan.setAttribute(\"lengthAdjust\", \"spacingAndGlyphs\");\n        wordTspan.textContent = currWord.textContent;\n        paragSvg.appendChild(wordTspan);\n\n        // Adding spaces after words except at the end of the paragraph\n        // TODO: assumes left-to-right text\n        if (i < words.length - 1) {\n          const nextWord = words[i + 1];\n          // eslint-disable-next-line no-unused-vars\n          const [leftNext, bottomNext, rightNext, topNext] = $(nextWord).attr(\"coords\").split(',').map(parseFloat);\n          const spaceTspan = document.createElementNS(\"http://www.w3.org/2000/svg\", this.svgWordElement);\n          spaceTspan.setAttribute(\"class\", \"BRwordElement\");\n          spaceTspan.setAttribute(\"x\", right.toString());\n          spaceTspan.setAttribute(\"y\", bottom.toString());\n          if ((leftNext - right) > 0) spaceTspan.setAttribute(\"textLength\", (leftNext - right).toString());\n          spaceTspan.setAttribute(\"lengthAdjust\", \"spacingAndGlyphs\");\n          spaceTspan.textContent = \" \";\n          paragSvg.appendChild(spaceTspan);\n        }\n\n        // Adds newline at the end of paragraph on Firefox\n        if ((i ==  words.length - 1 && (this.insertNewlines))) {\n          paragSvg.appendChild(document.createTextNode(\"\\n\"));\n        }\n      }\n\n      wordHeightArr.sort();\n      const paragWordHeight = wordHeightArr[Math.floor(wordHeightArr.length * 0.85)];\n      paragSvg.setAttribute(\"font-size\", paragWordHeight.toString());\n      svg.appendChild(paragSvg);\n    });\n    this.stopPageFlip($container);\n  }\n}\n\nexport class BookreaderWithTextSelection extends BookReader {\n  init() {\n    const options = Object.assign({}, DEFAULT_OPTIONS, this.options.plugins.textSelection);\n    if (options.enabled) {\n      this.textSelectionPlugin = new TextSelectionPlugin(options, this.options.vars);\n      // Write this back; this way the plugin is the source of truth, and BR just\n      // contains a reference to it.\n      this.options.plugins.textSelection = options;\n      this.textSelectionPlugin.init();\n\n      // Track how often selection is used\n      const sso = new SelectionStartedObserver('.textSelectionSVG', () => {\n        // Don't assume the order of the plugins ; the analytics plugin could\n        // have been added later. But at this point we should know for certain.\n        if (!this.archiveAnalyticsSendEvent) {\n          sso.detach();\n        } else {\n          this.archiveAnalyticsSendEvent('BookReader', 'SelectStart');\n        }\n      });\n      sso.attach();\n    }\n\n    super.init();\n  }\n\n  /**\n   * @param {number} index\n   */\n  _createPageContainer(index) {\n    const pageContainer = super._createPageContainer(index);\n    // Disable if thumb mode; it's too janky\n    // .page can be null for \"pre-cover\" region\n    if (this.mode !== this.constModeThumb && pageContainer.page) {\n      this.textSelectionPlugin?.createTextLayer(pageContainer);\n    }\n    return pageContainer;\n  }\n}\nwindow.BookReader = BookreaderWithTextSelection;\nexport default BookreaderWithTextSelection;\n","\n/**\n * Checks whether the current browser is a Chrome/Chromium browser\n * Code from https://stackoverflow.com/a/4565120/2317712\n * @param {string} [userAgent]\n * @param {string} [vendor]\n * @return {boolean}\n */\nexport function isChrome(userAgent = navigator.userAgent, vendor = navigator.vendor) {\n  return /chrome/i.test(userAgent) && /google inc/i.test(vendor);\n}\n\n/**\n * Checks whether the current browser is firefox\n * @param {string} [userAgent]\n * @return {boolean}\n */\nexport function isFirefox(userAgent = navigator.userAgent) {\n  return /firefox/i.test(userAgent);\n}\n\n/**\n * Checks whether the current browser is safari\n * https://developer.mozilla.org/en-US/docs/Web/HTTP/Browser_detection_using_the_user_agent#Browser_Name\n * @param {string} [userAgent]\n * @return {boolean}\n */\nexport function isSafari(userAgent = navigator.userAgent) {\n  return /safari/i.test(userAgent) && !/chrome|chromium/i.test(userAgent);\n}\n","var global = require('../internals/global');\nvar fails = require('../internals/fails');\nvar uncurryThis = require('../internals/function-uncurry-this');\nvar toString = require('../internals/to-string');\nvar trim = require('../internals/string-trim').trim;\nvar whitespaces = require('../internals/whitespaces');\n\nvar charAt = uncurryThis(''.charAt);\nvar n$ParseFloat = global.parseFloat;\nvar Symbol = global.Symbol;\nvar ITERATOR = Symbol && Symbol.iterator;\nvar FORCED = 1 / n$ParseFloat(whitespaces + '-0') !== -Infinity\n  // MS Edge 18- broken with boxed symbols\n  || (ITERATOR && !fails(function () { n$ParseFloat(Object(ITERATOR)); }));\n\n// `parseFloat` method\n// https://tc39.es/ecma262/#sec-parsefloat-string\nmodule.exports = FORCED ? function parseFloat(string) {\n  var trimmedString = trim(toString(string));\n  var result = n$ParseFloat(trimmedString);\n  return result === 0 && charAt(trimmedString, 0) == '-' ? -0 : result;\n} : n$ParseFloat;\n","var PROPER_FUNCTION_NAME = require('../internals/function-name').PROPER;\nvar fails = require('../internals/fails');\nvar whitespaces = require('../internals/whitespaces');\n\nvar non = '\\u200B\\u0085\\u180E';\n\n// check that a method works with the correct list\n// of whitespaces and has a correct name\nmodule.exports = function (METHOD_NAME) {\n  return fails(function () {\n    return !!whitespaces[METHOD_NAME]()\n      || non[METHOD_NAME]() !== non\n      || (PROPER_FUNCTION_NAME && whitespaces[METHOD_NAME].name !== METHOD_NAME);\n  });\n};\n","var $ = require('../internals/export');\nvar $parseFloat = require('../internals/number-parse-float');\n\n// `parseFloat` method\n// https://tc39.es/ecma262/#sec-parsefloat-string\n$({ global: true, forced: parseFloat != $parseFloat }, {\n  parseFloat: $parseFloat\n});\n","'use strict';\nvar $ = require('../internals/export');\nvar $trim = require('../internals/string-trim').trim;\nvar forcedStringTrimMethod = require('../internals/string-trim-forced');\n\n// `String.prototype.trim` method\n// https://tc39.es/ecma262/#sec-string.prototype.trim\n$({ target: 'String', proto: true, forced: forcedStringTrimMethod('trim') }, {\n  trim: function trim() {\n    return $trim(this);\n  }\n});\n"],"names":["SelectionStartedObserver","selector","handler","ev","loggedForSelection","startedInSelector","$","target","closest","length","window","getSelection","toString","this","document","addEventListener","_onSelectStart","_onSelectionChange","removeEventListener","applyVariables","template","vars","overrides","possibleFilters","APPLY_FILTERS","replace","$0","$1","split","map","x","trim","varName","filterNames","value","n","reduce","acc","cur","urlencode","encodeURIComponent","BookReader","DEFAULT_OPTIONS","enabled","fullDjvuXmlUrl","singlePageDjvuXmlUrl","jsonp","Cache","maxSize","entries","entry","shift","push","TextSelectionPlugin","options","optionVariables","avoidTspans","isFirefox","pointerEventsOnParagraph","isSafari","djvuPagesPromise","svgParagraphElement","svgWordElement","insertNewlines","pageTextCache","maxWordRendered","ajax","type","url","dataType","cache","error","e","then","res","xmlMap","parseXML","find","index","cachedEntry","response","pageIndex","xmlDoc","result","add","undefined","XMLpagesArr","$container","event","selection","clipboardData","setData","preventDefault","svg","classList","remove","on","is","stopPropagation","one","off","textSelectingMode","removeAllRanges","defaultMode","$svg","each","i","s","interceptCopy","pageContainer","page","getPageText","XMLpage","totalWords","console","log","createSVGPageLayer","append","paragraph","words","paragSvg","createElementNS","setAttribute","style","pointerEvents","wordHeightArr","currWord","attr","parseFloat","left","bottom","right","wordHeight","wordTspan","textContent","appendChild","nextWord","leftNext","spaceTspan","createTextNode","sort","paragWordHeight","Math","floor","stopPageFlip","BookreaderWithTextSelection","Object","assign","plugins","textSelection","textSelectionPlugin","init","sso","archiveAnalyticsSendEvent","detach","attach","mode","constModeThumb","createTextLayer","isChrome","userAgent","navigator","vendor","test","global","fails","uncurryThis","whitespaces","charAt","n$ParseFloat","Symbol","ITERATOR","iterator","FORCED","module","exports","string","trimmedString","PROPER_FUNCTION_NAME","METHOD_NAME","name","$parseFloat","forced","$trim","proto","forcedStringTrimMethod"],"sourceRoot":""}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6b1b7e6b..817edfd0d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 5.0.0-61
+- Fix: Mode2up preview pages hanging on first click @cdrini
+- Dev: Add analytics event for text layer page selection @cdrini
+
 # 5.0.0-60
 - Fix: Update modal manager to fix duplicate definitions warnings on IA @cdrini
 - Fix: Common Sentry error `.spread` undefined @cdrini
diff --git a/package-lock.json b/package-lock.json
index bd1069cb3..4ee909185 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@internetarchive/bookreader",
-  "version": "5.0.0-60",
+  "version": "5.0.0-61",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@internetarchive/bookreader",
-      "version": "5.0.0-60",
+      "version": "5.0.0-61",
       "license": "AGPL-3.0",
       "dependencies": {
         "@internetarchive/ia-activity-indicator": "^0.0.4",
diff --git a/package.json b/package.json
index 02c700a10..e03e41776 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@internetarchive/bookreader",
-  "version": "5.0.0-60",
+  "version": "5.0.0-61",
   "description": "The Internet Archive BookReader.",
   "repository": {
     "type": "git",