highcharts/esm/modules/accessibility.js

JavaScript charting framework

/**
 * Highcharts JS v12.3.0 (2025-06-21)
 * @module highcharts/modules/accessibility
 * @requires highcharts
 *
 * Accessibility module
 *
 * (c) 2010-2025 Highsoft AS
 * Author: Oystein Moseng
 *
 * License: www.highcharts.com/license
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e=this.chart,t=e.options.accessibility.screenReaderSection.beforeChartFormat;if(!t)return"";let i=this.getAxesDescription(),n=e.sonify&&e.options.sonification&&e.options.sonification.enabled,s="highcharts-a11y-sonify-data-btn-"+e.index,r="hc-linkto-highcharts-data-table-"+e.index,o=ec(e),a=e.langFormat("accessibility.screenReaderSection.annotations.heading",{chart:e}),l={headingTagName:ev(e.renderTo),chartTitle:eg(e),typeDescription:this.getTypeDescriptionText(),chartSubtitle:this.getSubtitleText(),chartLongdesc:this.getLongdescText(),xAxisDescription:i.xAxis,yAxisDescription:i.yAxis,playAsSoundButton:n?this.getSonifyButtonText(s):"",viewTableButton:e.exporting?.getCSV?this.getDataTableButtonText(r):"",annotationsTitle:o?a:"",annotationsList:o},h=T.i18nFormat(t,l,e);return this.dataTableButtonId=r,this.sonifyButtonId=s,eC(h)}defaultAfterChartFormatter(){let e=this.chart,t=e.options.accessibility.screenReaderSection.afterChartFormat;if(!t)return"";let 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t=this.viewDataTableButton=ey(e),i=this.chart,n=e.replace("hc-linkto-","");t&&(eA(t,{tabindex:-1,"aria-expanded":!!ey(n)}),t.onclick=i.options.accessibility.screenReaderSection.onViewDataTableClick||function(){i.exporting?.viewData()})}getAxesDescription(){let e=this.chart,t=function(t,i){let n=e[t];return n.length>1||n[0]&&eT(n[0].options.accessibility&&n[0].options.accessibility.enabled,i)},i=!!e.types&&0>e.types.indexOf("map")&&0>e.types.indexOf("treemap")&&0>e.types.indexOf("tilemap"),n=!!e.hasCartesianSeries,s=t("xAxis",!e.angular&&n&&i),r=t("yAxis",n&&i),o={};return s&&(o.xAxis=this.getAxisDescriptionText("xAxis")),r&&(o.yAxis=this.getAxisDescriptionText("yAxis")),o}getAxisDescriptionText(e){let t=this.chart,i=t[e];return t.langFormat("accessibility.axis."+e+"Description"+(i.length>1?"Plural":"Singular"),{chart:t,names:i.map(function(e){return eu(e)}),ranges:i.map(function(e){return 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e=this.chart,t=e.focusElement,i=e.accessibility;this.proxyProvider.clearGroup("chartMenu"),this.proxyMenuButton(),this.exportButtonProxy&&t&&t===e.exporting?.group&&(t.focusBorder?e.setFocusToElement(t,this.exportButtonProxy.innerElement):i&&i.keyboardNavigation.tabindexContainer.focus())}proxyMenuButton(){let e=this.chart,t=this.proxyProvider,i=eB(e);(function(e){let t=e.options.exporting,i=eB(e);return!!(t&&!1!==t.enabled&&t.accessibility&&t.accessibility.enabled&&i&&i.element)})(e)&&i&&(this.exportButtonProxy=t.addProxyElement("chartMenu",{click:i},"button",{"aria-label":e.langFormat("accessibility.exporting.menuButtonLabel",{chart:e,chartTitle:eP(e)}),"aria-expanded":!1,title:e.options.lang.contextButtonTitle||null}))}createProxyGroup(){this.chart&&this.proxyProvider&&this.proxyProvider.addGroup("chartMenu")}addAccessibleContextMenuAttribs(){let 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t=this.chart,i=t.options.accessibility,n=e.response,s=t.highlightedExportItemIx||0;for(;s--;)if(t.highlightExportItem(s))return n.success;return i.keyboardNavigation.wrapAround?(t.highlightLastExportItem(),n.success):n.prev}onKbdNext(e){let t=this.chart,i=t.options.accessibility,n=e.response;for(let e=(t.highlightedExportItemIx||0)+1;e<(t.exporting?.divElements?.length||0);++e)if(t.highlightExportItem(e))return n.success;return i.keyboardNavigation.wrapAround?(t.highlightExportItem(0),n.success):n.next}onKbdClick(e){let t=this.chart,i=void 0!==t.highlightedExportItemIx&&t.exporting?.divElements?.[t.highlightedExportItemIx],n=eB(t)?.element;return t.exporting?.openMenu?i&&this.fakeClickEvent(i):(n&&this.fakeClickEvent(n),t.highlightExportItem(0)),e.response.success}}!function(e){function t(){let e=eB(this);if(e){let t=e.element;t.onclick&&t.onclick(eN("click"))}}function i(){let 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this.exitAnchor}}addExitAnchorEventsToEl(e){let t=this.chart,i=this;this.eventProvider.addEvent(e,"focus",function(e){let n=e||eR.event,s=!(n.relatedTarget&&t.container.contains(n.relatedTarget)||i.exiting);if(t.focusElement&&delete t.focusElement,s){if(i.tabbingInBackwards=!0,i.tabindexContainer.focus(),delete i.tabbingInBackwards,n.preventDefault(),i.modules&&i.modules.length){i.currentModuleIx=i.modules.length-1;let e=i.modules[i.currentModuleIx];e&&e.validate&&!e.validate()?i.move(-1):e&&e.init(-1)}}else i.exiting=!1})}getFirstValidModuleIx(){let e=this.modules.length;for(let t=0;t<e;++t){let e=this.modules[t];if(!e.validate||e.validate())return t}return null}destroy(){this.removeExitAnchor(),this.eventProvider.removeAddedEvents(),this.chart.container.removeAttribute("tabindex")}}function eG(){let e=this;ez(this,"dismissPopupContent",{},function(){e.tooltip&&e.tooltip.hide(0),e.hideExportMenu()})}function eW(e){27===(e.which||e.keyCode)&&l().charts&&l().charts.forEach(e=>{e&&e.dismissPopupContent&&e.dismissPopupContent()})}(eK||(eK={})).compose=function(e){eF.compose(e);let t=e.prototype;return!t.dismissPopupContent&&(t.dismissPopupContent=eG,eO&&eL(eO,"keydown",eW)),e};let eV=eK,eX=t.default.Legend;var eY=o.n(eX);let{animObject:ej}=l(),{doc:eZ}=l(),{addEvent:e$,fireEvent:e_,isNumber:eQ,pick:eJ,syncTimeout:e0}=l(),{getChartTitle:e1}=B,{stripHTMLTagsFromString:e2,addClass:e3,removeClass:e5}=m;function e4(e){let t=e.legend&&e.legend.allItems,i=e.options.legend.accessibility||{},n=e.colorAxis&&e.colorAxis.some(e=>!e.dataClasses||!e.dataClasses.length);return!!(t&&t.length&&!n&&!1!==i.enabled)}function e9(e,t){let i=t.legendItem||{};for(let n of(t.setState(e?"hover":"",!0),["group","label","symbol"])){let t=i[n],s=t&&t.element||t;s&&e_(s,e?"mouseover":"mouseout")}}class e6 extends q{constructor(){super(...arguments),this.highlightedLegendItemIx=NaN,this.proxyGroup=null}init(){let 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this.removeProxies(),!!e4(this.chart)&&(this.addLegendProxyGroup(),this.proxyLegendItems(),this.updateLegendItemProxyVisibility(),this.updateLegendTitle(),i&&this.chart.highlightLegendItem(this.highlightedLegendItemIx),!0)}removeProxies(){this.proxyProvider.removeGroup("legend")}updateLegendTitle(){let e=this.chart,t=e2((e.legend&&e.legend.options.title&&e.legend.options.title.text||"").replace(/<br ?\/?>/g," "),e.renderer.forExport),i=e.langFormat("accessibility.legend.legendLabel"+(t?"":"NoTitle"),{chart:e,legendTitle:t,chartTitle:e1(e)});this.proxyProvider.updateGroupAttrs("legend",{"aria-label":i})}addLegendProxyGroup(){let e="all"===this.chart.options.accessibility.landmarkVerbosity?"region":null;this.proxyGroup=this.proxyProvider.addGroup("legend","ul",{"aria-label":"_placeholder_",role:e})}proxyLegendItems(){let e,t=this;((this.chart.legend||{}).allItems||[]).forEach(i=>{(e=i.legendItem||{}).label&&e.label.element&&t.proxyLegendItem(i)})}proxyLegendItem(e){let t=e.legendItem||{},i=e.legendItem?.label,n=i?.element,s=t.label?.styles?.textOverflow==="ellipsis";if(!t.label||!t.group)return;let r=this.chart.langFormat("accessibility.legend.legendItem",{chart:this.chart,itemName:e2(e.name,this.chart.renderer.forExport),item:e}),o={tabindex:-1,"aria-pressed":e.visible,"aria-label":r,title:""};s&&-1!==(n.textContent||"").indexOf("…")&&(o.title=i?.textStr);let a=t.group.div?t.label:t.group;e.a11yProxyElement=this.proxyProvider.addProxyElement("legend",{click:t.label,visual:a.element},"button",o)}getKeyboardNavigation(){let e=this.keyCodes,t=this,i=this.chart;return new K(i,{keyCodeMap:[[[e.left,e.right,e.up,e.down],function(e){return t.onKbdArrowKey(this,e)}],[[e.enter,e.space],function(){return t.onKbdClick(this)}],[[e.pageDown,e.pageUp],function(i){let n=i===e.pageDown?1:-1;return t.highlightAdjacentLegendPage(n),this.response.success}]],validate:function(){return t.shouldHaveLegendNavigation()},init:function(){i.highlightLegendItem(0),t.highlightedLegendItemIx=0},terminate:function(){t.highlightedLegendItemIx=-1,i.legend.allItems.forEach(e=>e9(!1,e))}})}onKbdArrowKey(e,t){let{keyCodes:{left:i,up:n},highlightedLegendItemIx:s,chart:r}=this,o=r.legend.allItems.length,a=r.options.accessibility.keyboardNavigation.wrapAround,l=t===i||t===n?-1:1;return r.highlightLegendItem(s+l)?this.highlightedLegendItemIx+=l:a&&o>1&&(this.highlightedLegendItemIx=l>0?0:o-1,r.highlightLegendItem(this.highlightedLegendItemIx)),e.response.success}onKbdClick(e){let t=this.chart.legend.allItems[this.highlightedLegendItemIx];return t&&t.a11yProxyElement&&t.a11yProxyElement.click(),e.response.success}shouldHaveLegendNavigation(){if(!e4(this.chart))return!1;let e=this.chart,t=(e.options.legend||{}).accessibility||{};return!!(e.legend.display&&t.keyboardNavigation&&t.keyboardNavigation.enabled)}destroy(){this.removeProxies()}}function e8(e){let t=this.legend.allItems,i=this.accessibility&&this.accessibility.components.legend.highlightedLegendItemIx,n=t[e],s=n?.legendItem||{};if(n){eQ(i)&&t[i]&&e9(!1,t[i]);var r=this.legend;let o=(r.allItems[e].legendItem||{}).pageIx,a=r.currentPage;void 0!==o&&o+1!==a&&r.scroll(1+o-a);let l=s.label,h=n.a11yProxyElement&&n.a11yProxyElement.innerElement;return l&&l.element&&h&&this.setFocusToElement(l,h),e9(!0,n),!0}return!1}function e7(e){let t=this.chart.options.accessibility,i=e.item;t.enabled&&i&&i.a11yProxyElement&&i.a11yProxyElement.innerElement.setAttribute("aria-pressed",e.visible?"true":"false")}(e6||(e6={})).compose=function(e,t){let i=e.prototype;i.highlightLegendItem||(i.highlightLegendItem=e8,e$(t,"afterColorizeItem",e7))};let te=e6,tt=t.default.Axis;var ti=o.n(tt);let{isTouchDevice:tn}=l(),{addEvent:ts,merge:tr,pick:to}=l(),ta=[];function tl(){this.navigator&&this.navigator.setBaseSeries(null,!1)}function th(){let e,t,i,n=this.legend,s=this.navigator;if(s){e=n&&n.options,t=s.xAxis,i=s.yAxis;let{scrollbarHeight:r,scrollButtonSize:o}=s;this.inverted?(s.left=s.opposite?this.chartWidth-r-s.height:this.spacing[3]+r,s.top=this.plotTop+o):(s.left=to(t.left,this.plotLeft+o),s.top=s.navigatorOptions.top||this.chartHeight-s.height-r-(this.scrollbar?.options.margin||0)-this.spacing[2]-(this.rangeSelector&&this.extraBottomMargin?this.rangeSelector.getHeight():0)-(e&&"bottom"===e.verticalAlign&&"proximate"!==e.layout&&e.enabled&&!e.floating?n.legendHeight+to(e.margin,10):0)-(this.titleOffset?this.titleOffset[2]:0)),t&&i&&(this.inverted?t.options.left=i.options.left=s.left:t.options.top=i.options.top=s.top,t.setAxisSize(),i.setAxisSize())}}function td(t){!this.navigator&&!this.scroller&&(this.options.navigator.enabled||this.options.scrollbar.enabled)&&(this.scroller=this.navigator=new e(this),to(t.redraw,!0)&&this.redraw(t.animation))}function tc(){let t=this.options;(t.navigator.enabled||t.scrollbar.enabled)&&(this.scroller=this.navigator=new e(this))}function tu(){let e=this.options,t=e.navigator,i=e.rangeSelector;if((t&&t.enabled||i&&i.enabled)&&(!tn&&"x"===this.zooming.type||tn&&"x"===this.zooming.pinchType))return!1}function tp(e){let t=e.navigator;if(t&&e.xAxis[0]){let i=e.xAxis[0].getExtremes();t.render(i.min,i.max)}}function tg(e){let t=e.options.navigator||{},i=e.options.scrollbar||{};!this.navigator&&!this.scroller&&(t.enabled||i.enabled)&&(tr(!0,this.options.navigator,t),tr(!0,this.options.scrollbar,i),delete e.options.navigator,delete e.options.scrollbar)}let tm=function(t,i){if(l().pushUnique(ta,t)){let n=t.prototype;e=i,n.callbacks.push(tp),ts(t,"afterAddSeries",tl),ts(t,"afterSetChartSize",th),ts(t,"afterUpdate",td),ts(t,"beforeRender",tc),ts(t,"beforeShowResetZoom",tu),ts(t,"update",tg)}},{isTouchDevice:tb}=l(),{addEvent:tf,correctFloat:tx,defined:ty,isNumber:tv,pick:tw}=l();function tE(){this.navigatorAxis||(this.navigatorAxis=new tT(this))}function tA(e){let t,i=this.chart,n=i.options,s=n.navigator,r=this.navigatorAxis,o=i.zooming.pinchType,a=n.rangeSelector,l=i.zooming.type;if(this.isXAxis&&(s?.enabled||a?.enabled)){if("y"===l&&"zoom"===e.trigger)t=!1;else if(("zoom"===e.trigger&&"xy"===l||tb&&"xy"===o)&&this.options.range){let t=r.previousZoom;ty(e.min)?r.previousZoom=[this.min,this.max]:t&&(e.min=t[0],e.max=t[1],r.previousZoom=void 0)}}void 0!==t&&e.preventDefault()}class tT{static compose(e){e.keepProps.includes("navigatorAxis")||(e.keepProps.push("navigatorAxis"),tf(e,"init",tE),tf(e,"setExtremes",tA))}constructor(e){this.axis=e}destroy(){this.axis=void 0}toFixedRange(e,t,i,n){let s=this.axis,r=(s.pointRange||0)/2,o=tw(i,s.translate(e,!0,!s.horiz)),a=tw(n,s.translate(t,!0,!s.horiz));return ty(i)||(o=tx(o+r)),ty(n)||(a=tx(a-r)),tv(o)&&tv(a)||(o=a=void 0),{min:o,max:a}}}let tM=t.default.Color;var tC=o.n(tM);let tk=t.default.SeriesRegistry;var tS=o.n(tk);let{parse:tP}=tC(),{seriesTypes:tD}=tS(),tN={height:40,margin:22,maskInside:!0,handles:{width:7,borderRadius:0,height:15,symbols:["navigator-handle","navigator-handle"],enabled:!0,lineWidth:1,backgroundColor:"#f2f2f2",borderColor:"#999999"},maskFill:tP("#667aff").setOpacity(.3).get(),outlineColor:"#999999",outlineWidth:1,series:{type:void 0===tD.areaspline?"line":"areaspline",fillOpacity:.05,lineWidth:1,compare:null,sonification:{enabled:!1},dataGrouping:{approximation:"average",enabled:!0,groupPixelWidth:2,firstAnchor:"firstPoint",anchor:"middle",lastAnchor:"lastPoint",units:[["millisecond",[1,2,5,10,20,25,50,100,200,500]],["second",[1,2,5,10,15,30]],["minute",[1,2,5,10,15,30]],["hour",[1,2,3,4,6,8,12]],["day",[1,2,3,4]],["week",[1,2,3]],["month",[1,3,6]],["year",null]]},dataLabels:{enabled:!1,zIndex:2},id:"highcharts-navigator-series",className:"highcharts-navigator-series",lineColor:null,marker:{enabled:!1},threshold:null},xAxis:{className:"highcharts-navigator-xaxis",tickLength:0,lineWidth:0,gridLineColor:"#e6e6e6",id:"navigator-x-axis",gridLineWidth:1,tickPixelInterval:200,labels:{align:"left",style:{color:"#000000",fontSize:"0.7em",opacity:.6,textOutline:"2px contrast"},x:3,y:-4},crosshair:!1},yAxis:{className:"highcharts-navigator-yaxis",gridLineWidth:0,startOnTick:!1,endOnTick:!1,minPadding:.1,id:"navigator-y-axis",maxPadding:.1,labels:{enabled:!1},crosshair:!1,title:{text:void 0},tickLength:0,tickWidth:0}},{defined:tB,isNumber:tI,pick:tF}=l(),{relativeLength:tO}=l(),tR={"navigator-handle":function(e,t,i,n,s={}){var r,o,a,l,h;let d=s.width?s.width/2:i,c=tO(s.borderRadius||0,Math.min(2*d,n));return[["M",-1.5,(n=s.height||n)/2-3.5],["L",-1.5,n/2+4.5],["M",.5,n/2-3.5],["L",.5,n/2+4.5],...(r=-d-1,o=.5,a=2*d+1,l=n,h={r:c},h?.r?function(e,t,i,n,s){let r=s?.r||0;return[["M",e+r,t],["L",e+i-r,t],["A",r,r,0,0,1,e+i,t+r],["L",e+i,t+n-r],["A",r,r,0,0,1,e+i-r,t+n],["L",e+r,t+n],["A",r,r,0,0,1,e,t+n-r],["L",e,t+r],["A",r,r,0,0,1,e+r,t],["Z"]]}(r,.5,a,l,h):[["M",r,o],["L",r+a,o],["L",r+a,o+l],["L",r,o+l],["Z"]])]}},tL=t.default.RendererRegistry;var tH=o.n(tL);let{defined:tz}=l(),{defaultOptions:tq}=l(),{composed:tU}=l(),{getRendererType:tK}=tH(),{setFixedRange:tG}={setFixedRange:function(e){let t=this.xAxis[0];tz(t.dataMax)&&tz(t.dataMin)&&e?this.fixedRange=Math.min(e,t.dataMax-t.dataMin):this.fixedRange=e}},{addEvent:tW,extend:tV,pushUnique:tX}=l();function tY(){this.chart.navigator&&!this.options.isInternal&&this.chart.navigator.setBaseSeries(null,!1)}let tj=function(e,t,i){tT.compose(t),tX(tU,"Navigator")&&(e.prototype.setFixedRange=tG,tV(tK().prototype.symbols,tR),tV(tq,{navigator:tN}),tW(i,"afterUpdate",tY))},{composed:tZ}=l(),{addEvent:t$,defined:t_,pick:tQ,pushUnique:tJ}=l();!function(e){let t;function i(e){let t=tQ(e.options?.min,e.min),i=tQ(e.options?.max,e.max);return{axisMin:t,axisMax:i,scrollMin:t_(e.dataMin)?Math.min(t,e.min,e.dataMin,tQ(e.threshold,1/0)):t,scrollMax:t_(e.dataMax)?Math.max(i,e.max,e.dataMax,tQ(e.threshold,-1/0)):i}}function n(){let e=this.scrollbar,t=e&&!e.options.opposite,i=this.horiz?2:t?3:1;e&&(this.chart.scrollbarsOffsets=[0,0],this.chart.axisOffset[i]+=e.size+(e.options.margin||0))}function s(){let e=this;e.options?.scrollbar?.enabled&&(e.options.scrollbar.vertical=!e.horiz,e.options.startOnTick=e.options.endOnTick=!1,e.scrollbar=new t(e.chart.renderer,e.options.scrollbar,e.chart),t$(e.scrollbar,"changed",function(t){let n,s,{axisMin:r,axisMax:o,scrollMin:a,scrollMax:l}=i(e),h=l-a;if(t_(r)&&t_(o))if(e.horiz&&!e.reversed||!e.horiz&&e.reversed?(n=a+h*this.to,s=a+h*this.from):(n=a+h*(1-this.from),s=a+h*(1-this.to)),this.shouldUpdateExtremes(t.DOMType)){let i="mousemove"!==t.DOMType&&"touchmove"!==t.DOMType&&void 0;e.setExtremes(s,n,!0,i,t)}else this.setRange(this.from,this.to)}))}function r(){let e,t,n,{scrollMin:s,scrollMax:r}=i(this),o=this.scrollbar,a=this.axisTitleMargin+(this.titleOffset||0),l=this.chart.scrollbarsOffsets,h=this.options.margin||0;if(o&&l){if(this.horiz)this.opposite||(l[1]+=a),o.position(this.left,this.top+this.height+2+l[1]-(this.opposite?h:0),this.width,this.height),this.opposite||(l[1]+=h),e=1;else{let t;this.opposite&&(l[0]+=a),t=o.options.opposite?this.left+this.width+2+l[0]-(this.opposite?0:h):this.opposite?0:h,o.position(t,this.top,this.width,this.height),this.opposite&&(l[0]+=h),e=0}if(l[e]+=o.size+(o.options.margin||0),isNaN(s)||isNaN(r)||!t_(this.min)||!t_(this.max)||this.dataMin===this.dataMax)o.setRange(0,1);else if(this.min===this.max){let e=this.pointRange/(this.dataMax+1);t=e*this.min,n=e*(this.max+1),o.setRange(t,n)}else t=(this.min-s)/(r-s),n=(this.max-s)/(r-s),this.horiz&&!this.reversed||!this.horiz&&this.reversed?o.setRange(t,n):o.setRange(1-n,1-t)}}e.compose=function(e,i){tJ(tZ,"Axis.Scrollbar")&&(t=i,t$(e,"afterGetOffset",n),t$(e,"afterInit",s),t$(e,"afterRender",r))}}(s||(s={}));let t0=s,t1={height:10,barBorderRadius:5,buttonBorderRadius:0,buttonsEnabled:!1,liveRedraw:void 0,margin:void 0,minWidth:6,opposite:!0,step:.2,zIndex:3,barBackgroundColor:"#cccccc",barBorderWidth:0,barBorderColor:"#cccccc",buttonArrowColor:"#333333",buttonBackgroundColor:"#e6e6e6",buttonBorderColor:"#cccccc",buttonBorderWidth:1,rifleColor:"none",trackBackgroundColor:"rgba(255, 255, 255, 0.001)",trackBorderColor:"#cccccc",trackBorderRadius:5,trackBorderWidth:1},{defaultOptions:t2}=l(),{composed:t3}=l(),{addEvent:t5,correctFloat:t4,crisp:t9,defined:t6,destroyObjectProperties:t8,extend:t7,fireEvent:ie,merge:it,pick:ii,pushUnique:is,removeEvent:ir}=l();class io{static compose(e){t0.compose(e,io),is(t3,"Scrollbar")&&t7(t2,{scrollbar:t1})}static swapXY(e,t){return t&&e.forEach(e=>{let t,i=e.length;for(let n=0;n<i;n+=2)"number"==typeof(t=e[n+1])&&(e[n+1]=e[n+2],e[n+2]=t)}),e}constructor(e,t,i){this._events=[],this.chartX=0,this.chartY=0,this.from=0,this.scrollbarButtons=[],this.scrollbarLeft=0,this.scrollbarStrokeWidth=1,this.scrollbarTop=0,this.size=0,this.to=0,this.trackBorderWidth=1,this.x=0,this.y=0,this.init(e,t,i)}addEvents(){let e=this.options.inverted?[1,0]:[0,1],t=this.scrollbarButtons,i=this.scrollbarGroup.element,n=this.track.element,s=this.mouseDownHandler.bind(this),r=this.mouseMoveHandler.bind(this),o=this.mouseUpHandler.bind(this),a=[[t[e[0]].element,"click",this.buttonToMinClick.bind(this)],[t[e[1]].element,"click",this.buttonToMaxClick.bind(this)],[n,"click",this.trackClick.bind(this)],[i,"mousedown",s],[i.ownerDocument,"mousemove",r