highcharts/modules/accessibility.js

JavaScript charting framework

!/**
 * Highcharts JS v13.0.1 (2026-08-17)
 * @module highcharts/modules/accessibility
 * @requires highcharts
 *
 * Accessibility module
 *
 * (c) 2010-2026 Highsoft AS
 * Author: Øystein Moseng
 *
 * A commercial license may be required depending on use,
 * see www.highcharts.com/license
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t.shouldHaveLegendNavigation()},init:function(){i.highlightLegendItem(0),t.highlightedLegendItemIx=0},terminate:function(){t.highlightedLegendItemIx=-1,i.legend.allItems.forEach(e=>eY(!1,e))}})}onKbdArrowKey(e,t){let{keyCodes:{left:i,up:r},highlightedLegendItemIx:s,chart:n}=this,o=n.legend.allItems.length,a=n.options.accessibility.keyboardNavigation.wrapAround,l=t===i||t===r?-1:1;return n.highlightLegendItem(s+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(!eX(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 eZ(e){let t=this.legend.allItems,i=this.accessibility&&this.accessibility.components.legend.highlightedLegendItemIx,r=t[e],s=r?.legendItem||{};if(r){var n;let o,a;(0,x.isNumber)(i)&&t[i]&&eY(!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=s.label,h=r.a11yProxyElement&&r.a11yProxyElement.innerElement;return l&&l.element&&h&&this.setFocusToElement(l,h),eY(!0,r),!0}return!1}function e_(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")}(ej||(ej={})).compose=function(e,t){let i=e.prototype;i.highlightLegendItem||(i.highlightLegendItem=eZ,(0,x.addEvent)(t,"afterColorizeItem",e_))};let e$=ej;var eQ=b(532),eJ=b.n(eQ);let{isTouchDevice:e0}=y(),e1=[];function e2(){this.navigator&&this.navigator.setBaseSeries(null,!1)}function e3(){let e,t,i,r=this.legend,s=this.navigator;if(s){e=r&&r.options,t=s.xAxis,i=s.yAxis;let{scrollbarHeight:n,scrollButtonSize:o}=s;this.inverted?(s.left=s.opposite?this.chartWidth-n-s.height:this.spacing[3]+n,s.top=this.plotTop+o):(s.left=(0,x.pick)(t.left,this.plotLeft+o),s.top=s.navigatorOptions.top||this.chartHeight-s.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?r.legendHeight+(0,x.pick)(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 e5(e){!this.navigator&&!this.scroller&&(this.options.navigator.enabled||this.options.scrollbar.enabled)&&(this.scroller=this.navigator=new h(this),(0,x.pick)(e.redraw,!0)&&this.redraw(e.animation))}function e4(){let e=this.options;(e.navigator.enabled||e.scrollbar.enabled)&&(this.scroller=this.navigator=new h(this))}function e6(){let e=this.options,t=e.navigator,i=e.rangeSelector;if((t&&t.enabled||i&&i.enabled)&&(!e0&&"x"===this.zooming.type||e0&&"x"===this.zooming.pinchType))return!1}function e8(e){let t=e.navigator;if(t&&e.xAxis[0]){let i=e.xAxis[0].getExtremes();t.render(i.min,i.max)}}function e9(e){let t=e.options.navigator||{},i=e.options.scrollbar||{};!this.navigator&&!this.scroller&&(t.enabled||i.enabled)&&((0,x.merge)(!0,this.options.navigator,t),(0,x.merge)(!0,this.options.scrollbar,i),delete e.options.navigator,delete e.options.scrollbar)}let e7=function(e,t){if((0,x.pushUnique)(e1,e)){let i=e.prototype;h=t,i.callbacks.push(e8),(0,x.addEvent)(e,"afterAddSeries",e2),(0,x.addEvent)(e,"afterSetChartSize",e3),(0,x.addEvent)(e,"afterUpdate",e5),(0,x.addEvent)(e,"beforeRender",e4),(0,x.addEvent)(e,"beforeShowResetZoom",e6),(0,x.addEvent)(e,"update",e9)}},{isTouchDevice:te}=y();function tt(){this.navigatorAxis||(this.navigatorAxis=new tr(this))}function ti(e){let t,i=this.chart,r=i.options,s=r.navigator,n=this.navigatorAxis,o=i.zooming.pinchType,a=r.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||te&&"xy"===o)&&this.options.range){let t=n.previousZoom;(0,x.defined)(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 tr{static compose(e){e.keepProps.includes("navigatorAxis")||(e.keepProps.push("navigatorAxis"),(0,x.addEvent)(e,"init",tt),(0,x.addEvent)(e,"setExtremes",ti))}constructor(e){this.axis=e}destroy(){this.axis=void 0}toFixedRange(e,t,i,r){let s=this.axis,n=(s.pointRange||0)/2,o=(0,x.pick)(i,s.translate(e,!0,!s.horiz)),a=(0,x.pick)(r,s.translate(t,!0,!s.horiz));return(0,x.defined)(i)||(o=(0,x.correctFloat)(o+n)),(0,x.defined)(r)||(a=(0,x.correctFloat)(a-n)),(0,x.isNumber)(o)&&(0,x.isNumber)(a)||(o=a=void 0),{min:o,max:a}}}var ts=b(512),tn=b.n(ts);let{seriesTypes:to}=tn(),ta={height:40,margin:22,maskInside:!0,handles:{width:7,borderRadius:0,height:15,symbols:["navigator-handle","navigator-handle"],enabled:!0,lineWidth:1,backgroundColor:"var(--highcharts-neutral-color-5)",borderColor:"var(--highcharts-neutral-color-40)"},maskFill:"color-mix(in srgb, var(--highcharts-highlight-color-60) 30%, transparent)",outlineColor:"var(--highcharts-neutral-color-40)",outlineWidth:1,series:{type:void 0===to.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:"var(--highcharts-neutral-color-10)",id:"navigator-x-axis",gridLineWidth:1,tickPixelInterval:200,labels:{align:"left",style:{color:"var(--highcharts-neutral-color-100)",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}},{defaultOptions:tl}=y(),{noop:th}=y(),td={radius:0,scope:"stack",where:void 0},tc={"navigator-handle":function(e,t,i,r,s={}){var n,o,a,l,h,d;let c=s.width?s.width/2:i,u=(0,x.relativeLength)((n=s.borderRadius,!(0,x.isObject)(n)&&(n={radius:n||0}),(0,x.merge)(td,void 0,n)).radius,Math.min(2*c,r));return[["M",-1.5,(r=s.height||r)/2-3.5],["L",-1.5,r/2+4.5],["M",.5,r/2-3.5],["L",.5,r/2+4.5],...(o=-c-1,a=.5,l=2*c+1,h=r,d={r:u},d?.r?function(e,t,i,r,s){let n=s?.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+r-n],["A",n,n,0,0,1,e+i-n,t+r],["L",e+n,t+r],["A",n,n,0,0,1,e,t+r-n],["L",e,t+n],["A",n,n,0,0,1,e+n,t],["Z"]]}(o,.5,l,h,d):[["M",o,.5],["L",o+l,.5],["L",o+l,.5+h],["L",o,.5+h],["Z"]])]}};var tu=b(540),tp=b.n(tu);let{defaultOptions:tg}=y(),{composed:tm}=y(),{setFixedRange:tb}={setFixedRange:function(e){let t=this.xAxis[0];(0,x.defined)(t.dataMax)&&(0,x.defined)(t.dataMin)&&e?this.fixedRange=Math.min(e,t.dataMax-t.dataMin):this.fixedRange=e}};function tf(){this.chart.navigator&&!this.options.isInternal&&this.chart.navigator.setBaseSeries(null,!1)}let tx=function(e,t,i){tr.compose(t),(0,x.pushUnique)(tm,"Navigator")&&(e.prototype.setFixedRange=tb,(0,x.extend)(tp().prototype.symbols,tc),(0,x.extend)(tg,{navigator:ta}),(0,x.addEvent)(i,"afterUpdate",tf))},{composed:ty}=y();!function(e){let t;function i(e){let t=(0,x.pick)(e.options?.min,e.min),i=(0,x.pick)(e.options?.max,e.max);return{axisMin:t,axisMax:i,scrollMin:(0,x.defined)(e.dataMin)?Math.min(t,e.min??1/0,e.dataMin,e.threshold??1/0):t,scrollMax:e.treeGrid?.adjustedMax??((0,x.defined)(e.dataMax)?Math.max(i,e.max??-1/0,e.dataMax,e.threshold??-1/0):i)}}function r(){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),(0,x.addEvent)(e.scrollbar,"changed",function(t){let r,s,{axisMin:n,axisMax:o,scrollMin:a,scrollMax:l}=i(e),h=e.toPixels(a),d=e.toPixels(l)-h;if((0,x.defined)(n)&&(0,x.defined)(o))if(e.horiz&&!e.reversed||!e.horiz&&e.reversed?(r=Math.min(l,e.toValue(h+d*this.to)),s=Math.max(a,e.toValue(h+d*this.from))):(r=Math.min(l,e.toValue(h+d*(1-this.from))),s=Math.max(a,e.toValue(h+d*(1-this.to)))),this.shouldUpdateExtremes(t.DOMType)){let i="mousemove"!==t.DOMType&&"touchmove"!==t.DOMType&&void 0;e.setExtremes((0,x.correctFloat)(s),(0,x.correctFloat)(r),!0,i,t)}else this.setRange(this.from,this.to)}))}function n(){let e,t,r,{scrollMin:s,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,th