highcharts/modules/accessibility.js

JavaScript charting framework

!/**
 * Highcharts JS v12.5.0 (2026-01-12)
 * @module highcharts/modules/accessibility
 * @requires highcharts
 *
 * Accessibility module
 *
 * (c) 2010-2026 Highsoft AS
 * Author: Oystein Moseng
 *
 * A commercial license may be required depending on use.
 * See www.highcharts.com/license
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this.removeProxies(),!!tl(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=tn((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:tr(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 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t.shouldHaveLegendNavigation()},init:function(){i.highlightLegendItem(0),t.highlightedLegendItemIx=0},terminate:function(){t.highlightedLegendItemIx=-1,i.legend.allItems.forEach(e=>th(!1,e))}})}onKbdArrowKey(e,t){let{keyCodes:{left:i,up:s},highlightedLegendItemIx:r,chart:n}=this,o=n.legend.allItems.length,a=n.options.accessibility.keyboardNavigation.wrapAround,l=t===i||t===s?-1:1;return n.highlightLegendItem(r+l)?this.highlightedLegendItemIx+=l:a&&o>1&&(this.highlightedLegendItemIx=l>0?0:o-1,n.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(!tl(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 td(e){let t=this.legend.allItems,i=this.accessibility&&this.accessibility.components.legend.highlightedLegendItemIx,s=t[e],r=s?.legendItem||{};if(s){var n;let o,a;tt(i)&&t[i]&&th(!1,t[i]),n=this.legend,o=(n.allItems[e].legendItem||{}).pageIx,a=n.currentPage,void 0!==o&&o+1!==a&&n.scroll(1+o-a);let l=r.label,h=s.a11yProxyElement&&s.a11yProxyElement.innerElement;return l&&l.element&&h&&this.setFocusToElement(l,h),th(!0,s),!0}return!1}function tu(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")}(tc||(tc={})).compose=function(e,t){let i=e.prototype;i.highlightLegendItem||(i.highlightLegendItem=td,e7(t,"afterColorizeItem",tu))};let tp=tc;var tg=f(532),tm=f.n(tg);let{isTouchDevice:tb}=w(),{addEvent:tx,merge:tf,pick:ty}=w(),tv=[];function tw(){this.navigator&&this.navigator.setBaseSeries(null,!1)}function tE(){let e,t,i,s=this.legend,r=this.navigator;if(r){e=s&&s.options,t=r.xAxis,i=r.yAxis;let{scrollbarHeight:n,scrollButtonSize:o}=r;this.inverted?(r.left=r.opposite?this.chartWidth-n-r.height:this.spacing[3]+n,r.top=this.plotTop+o):(r.left=ty(t.left,this.plotLeft+o),r.top=r.navigatorOptions.top||this.chartHeight-r.height-n-(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?s.legendHeight+ty(e.margin,10):0)-(this.titleOffset?this.titleOffset[2]:0)),t&&i&&(this.inverted?t.options.left=i.options.left=r.left:t.options.top=i.options.top=r.top,t.setAxisSize(),i.setAxisSize())}}function tA(e){!this.navigator&&!this.scroller&&(this.options.navigator.enabled||this.options.scrollbar.enabled)&&(this.scroller=this.navigator=new d(this),ty(e.redraw,!0)&&this.redraw(e.animation))}function tT(){let e=this.options;(e.navigator.enabled||e.scrollbar.enabled)&&(this.scroller=this.navigator=new d(this))}function tM(){let e=this.options,t=e.navigator,i=e.rangeSelector;if((t&&t.enabled||i&&i.enabled)&&(!tb&&"x"===this.zooming.type||tb&&"x"===this.zooming.pinchType))return!1}function tk(e){let t=e.navigator;if(t&&e.xAxis[0]){let i=e.xAxis[0].getExtremes();t.render(i.min,i.max)}}function tC(e){let t=e.options.navigator||{},i=e.options.scrollbar||{};!this.navigator&&!this.scroller&&(t.enabled||i.enabled)&&(tf(!0,this.options.navigator,t),tf(!0,this.options.scrollbar,i),delete e.options.navigator,delete e.options.scrollbar)}let tS=function(e,t){if(w().pushUnique(tv,e)){let i=e.prototype;d=t,i.callbacks.push(tk),tx(e,"afterAddSeries",tw),tx(e,"afterSetChartSize",tE),tx(e,"afterUpdate",tA),tx(e,"beforeRender",tT),tx(e,"beforeShowResetZoom",tM),tx(e,"update",tC)}},{isTouchDevice:tP}=w(),{addEvent:tD,correctFloat:tN,defined:tB,isNumber:tI,pick:tF}=w();function tO(){this.navigatorAxis||(this.navigatorAxis=new tL(this))}function tR(e){let t,i=this.chart,s=i.options,r=s.navigator,n=this.navigatorAxis,o=i.zooming.pinchType,a=s.rangeSelector,l=i.zooming.type;if(this.isXAxis&&(r?.enabled||a?.enabled)){if("y"===l&&"zoom"===e.trigger)t=!1;else if(("zoom"===e.trigger&&"xy"===l||tP&&"xy"===o)&&this.options.range){let t=n.previousZoom;tB(e.min)?n.previousZoom=[this.min,this.max]:t&&(e.min=t[0],e.max=t[1],n.previousZoom=void 0)}}void 0!==t&&e.preventDefault()}class tL{static compose(e){e.keepProps.includes("navigatorAxis")||(e.keepProps.push("navigatorAxis"),tD(e,"init",tO),tD(e,"setExtremes",tR))}constructor(e){this.axis=e}destroy(){this.axis=void 0}toFixedRange(e,t,i,s){let r=this.axis,n=(r.pointRange||0)/2,o=tF(i,r.translate(e,!0,!r.horiz)),a=tF(s,r.translate(t,!0,!r.horiz));return tB(i)||(o=tN(o+n)),tB(s)||(a=tN(a-n)),tI(o)&&tI(a)||(o=a=void 0),{min:o,max:a}}}var tH=f(620),tz=f.n(tH),tq=f(512),tU=f.n(tq);let{parse:tG}=tz(),{seriesTypes:tK}=tU(),tV={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:tG("#667aff").setOpacity(.3).get(),outlineColor:"#999999",outlineWidth:1,series:{type:void 0===tK.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:tW,isNumber:tX,pick:tY}=w(),{relativeLength:tj}=w(),t_={"navigator-handle":function(e,t,i,s,r={}){var n,o,a,l,h;let c=r.width?r.width/2:i,d=tj(r.borderRadius||0,Math.min(2*c,s));return[["M",-1.5,(s=r.height||s)/2-3.5],["L",-1.5,s/2+4.5],["M",.5,s/2-3.5],["L",.5,s/2+4.5],...(n=-c-1,o=.5,a=2*c+1,l=s,h={r:d},h?.r?function(e,t,i,s,r){let n=r?.r||0;return[["M",e+n,t],["L",e+i-n,t],["A",n,n,0,0,1,e+i,t+n],["L",e+i,t+s-n],["A",n,n,0,0,1,e+i-n,t+s],["L",e+n,t+s],["A",n,n,0,0,1,e,t+s-n],["L",e,t+n],["A",n,n,0,0,1,e+n,t],["Z"]]}(n,.5,a,l,h):[["M",n,.5],["L",n+a,.5],["L",n+a,.5+l],["L",n,.5+l],["Z"]])]}};var tZ=f(608),t$=f.n(tZ);let{defined:tQ}=w(),{defaultOptions:tJ}=w(),{composed:t0}=w(),{getRendererType:t1}=t$(),{setFixedRange:t2}={setFixedRange:function(e){let t=this.xAxis[0];tQ(t.dataMax)&&tQ(t.dataMin)&&e?this.fixedRange=Math.min(e,t.dataMax-t.dataMin):this.fixedRange=e}},{addEvent:t3,extend:t5,pushUnique:t4}=w();function t6(){this.chart.navigator&&!this.options.isInternal&&this.chart.navigator.setBaseSeries(null,!1)}let t9=function(e,t,i){tL.compose(t),t4(t0,"Navigator")&&(e.prototype.setFixedRange=t2,t5(t1().prototype.symbols,t_),t5(tJ,{navigator:tV}),t3(i,"afterUpdate",t6))},{composed:t8}=w(),{addEvent:t7,correctFloat:ie,defined:it,pick:ii,pushUnique:is}=w();!function(e){let t;function i(e){let t=ii(e.options?.min,e.min),i=ii(e.options?.max,e.max);return{axisMin:t,axisMax:i,scrollMin:it(e.dataMin)?Math.min(t,e.min??1/0,e.dataMin,e.threshold??1/0):t,scrollMax:e.treeGrid?.adjustedMax??(it(e.dataMax)?Math.max(i,e.max??-1/0,e.dataMax,e.threshold??-1/0):i)}}function s(){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 r(){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),t7(e.scrollbar,"changed",function(t){let s,r,{axisMin:n,axisMax:o,scrollMin:a,scrollMax:l}=i(e),h=e.toPixels(a),c=e.toPixels(l)-h;if(it(n)&&it(o))if(e.horiz&&!e.reversed||!e.horiz&&e.reversed?(s=Math.min(l,e.toValue(h+c*this.to)),r=Math.max(a,e.toValue(h+c*this.from))):(s=Math.min(l,e.toValue(h+c*(1-this.from))),r=Math.max(a,e.toValue(h+c*(1-this.to)))),this.shouldUpdateExtremes(t.DOMType)){let i="mousemove"!==t.DOMType&&"touchmove"!==t.DOMType&&void 0;e.setExtremes(ie(r),ie(s),!0,i,t)}else this.setRange(this.from,this.to)}))}function n(){let e,t,s,{scrollMin:r,scrollMax:n}=i(this),o=this.scrollbar,a=(this.axisTitleMargin||0)+(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(r)||isNaN(n)||!it(this.min)||!it(this.max)||it(this.dataMin)&&this.dataMin===this.dataMax)o.setRange(0,1);else if(this.min===this.max){let e=this.pointRange/(this.dataMax