highcharts/esm/modules/accessibility.js

JavaScript charting framework

let e;/**
 * Highcharts JS v12.6.0 (2026-04-13)
 * @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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this.removeProxies(),!!e7(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=e9((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:e4(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=>te(!1,e))}})}onKbdArrowKey(e,t){let{keyCodes:{left:i,up:s},highlightedLegendItemIx:n,chart:r}=this,o=r.legend.allItems.length,a=r.options.accessibility.keyboardNavigation.wrapAround,l=t===i||t===s?-1:1;return r.highlightLegendItem(n+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(!e7(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 ti(e){let t=this.legend.allItems,i=this.accessibility&&this.accessibility.components.legend.highlightedLegendItemIx,s=t[e],n=s?.legendItem||{};if(s){var r;let o,a;C(i)&&t[i]&&te(!1,t[i]),r=this.legend,o=(r.allItems[e].legendItem||{}).pageIx,a=r.currentPage,void 0!==o&&o+1!==a&&r.scroll(1+o-a);let l=n.label,h=s.a11yProxyElement&&s.a11yProxyElement.innerElement;return l&&l.element&&h&&this.setFocusToElement(l,h),te(!0,s),!0}return!1}function ts(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")}(tt||(tt={})).compose=function(e,t){let i=e.prototype;i.highlightLegendItem||(i.highlightLegendItem=ti,d(t,"afterColorizeItem",ts))};let tn=tt,tr=t.default.Axis;var to=o.n(tr);let{isTouchDevice:ta}=l(),tl=[];function th(){this.navigator&&this.navigator.setBaseSeries(null,!1)}function tc(){let 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