highcharts/modules/accessibility.js

JavaScript charting framework

/*
 Highcharts JS v8.2.0 (2020-08-20)

 Accessibility module

 (c) 2010-2019 Highsoft AS
 Author: Oystein Moseng

 License: www.highcharts.com/license
*/
(function(a){"object"===typeof module&&module.exports?(a["default"]=a,module.exports=a):"function"===typeof define&&define.amd?define("highcharts/modules/accessibility",["highcharts"],function(r){a(r);a.Highcharts=r;return a}):a("undefined"!==typeof Highcharts?Highcharts:void 0)})(function(a){function r(a,h,q,n){a.hasOwnProperty(h)||(a[h]=n.apply(null,q))}a=a?a._modules:{};r(a,"Accessibility/Utils/HTMLUtilities.js",[a["Core/Utilities.js"],a["Core/Globals.js"]],function(a,h){function m(a){return a.replace(/&/g,
"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#x27;").replace(/\//g,"&#x2F;")}var n=a.merge,p=h.win,l=p.document;return{addClass:function(a,l){a.classList?a.classList.add(l):0>a.className.indexOf(l)&&(a.className+=l)},escapeStringForHTML:m,getElement:function(a){return l.getElementById(a)},getFakeMouseEvent:function(a){if("function"===typeof p.MouseEvent)return new p.MouseEvent(a);if(l.createEvent){var g=l.createEvent("MouseEvent");if(g.initMouseEvent)return g.initMouseEvent(a,
!0,!0,p,"click"===a?1:0,0,0,0,0,!1,!1,!1,!1,0,null),g}return{type:a}},removeElement:function(a){a&&a.parentNode&&a.parentNode.removeChild(a)},reverseChildNodes:function(a){for(var l=a.childNodes.length;l--;)a.appendChild(a.childNodes[l])},setElAttrs:function(a,l){Object.keys(l).forEach(function(k){var e=l[k];null===e?a.removeAttribute(k):(e=m(""+e),a.setAttribute(k,e))})},stripHTMLTagsFromString:function(a){return"string"===typeof a?a.replace(/<\/?[^>]+(>|$)/g,""):a},visuallyHideElement:function(a){n(!0,
a.style,{position:"absolute",width:"1px",height:"1px",overflow:"hidden",whiteSpace:"nowrap",clip:"rect(1px, 1px, 1px, 1px)",marginTop:"-3px","-ms-filter":"progid:DXImageTransform.Microsoft.Alpha(Opacity=1)",filter:"alpha(opacity=1)",opacity:"0.01"})}}});r(a,"Accessibility/Utils/ChartUtilities.js",[a["Accessibility/Utils/HTMLUtilities.js"],a["Core/Utilities.js"]],function(a,h){function m(e){if(e.points&&e.points.length&&e.points[0].graphic)return e.points[0].graphic.element}function n(e){var d=m(e);
return d&&d.parentNode||e.graph&&e.graph.element||e.group&&e.group.element}function p(e,d){d.setAttribute("aria-hidden",!1);d!==e.renderTo&&d.parentNode&&(Array.prototype.forEach.call(d.parentNode.childNodes,function(b){b.hasAttribute("aria-hidden")||b.setAttribute("aria-hidden",!0)}),p(e,d.parentNode))}var l=a.stripHTMLTagsFromString,g=h.defined,x=h.find,k=h.fireEvent;return{getChartTitle:function(e){return l(e.options.title.text||e.langFormat("accessibility.defaultChartTitle",{chart:e}))},getAxisDescription:function(e){return l(e&&
(e.userOptions&&e.userOptions.accessibility&&e.userOptions.accessibility.description||e.axisTitle&&e.axisTitle.textStr||e.options.id||e.categories&&"categories"||e.dateTime&&"Time"||"values"))},getPointFromXY:function(e,d,b){for(var f=e.length,c;f--;)if(c=x(e[f].points||[],function(c){return c.x===d&&c.y===b}))return c},getSeriesFirstPointElement:m,getSeriesFromName:function(e,d){return d?(e.series||[]).filter(function(b){return b.name===d}):e.series},getSeriesA11yElement:n,unhideChartElementFromAT:p,
hideSeriesFromAT:function(e){(e=n(e))&&e.setAttribute("aria-hidden",!0)},scrollToPoint:function(e){var d=e.series.xAxis,b=e.series.yAxis,f=(null===d||void 0===d?0:d.scrollbar)?d:b;if((d=null===f||void 0===f?void 0:f.scrollbar)&&g(d.to)&&g(d.from)){b=d.to-d.from;if(g(f.dataMin)&&g(f.dataMax)){var c=f.toPixels(f.dataMin),w=f.toPixels(f.dataMax);e=(f.toPixels(e["xAxis"===f.coll?"x":"y"]||0)-c)/(w-c)}else e=0;d.updatePosition(e-b/2,e+b/2);k(d,"changed",{from:d.from,to:d.to,trigger:"scrollbar",DOMEvent:null})}}}});
r(a,"Accessibility/KeyboardNavigationHandler.js",[a["Core/Utilities.js"]],function(a){function m(a,m){this.chart=a;this.keyCodeMap=m.keyCodeMap||[];this.validate=m.validate;this.init=m.init;this.terminate=m.terminate;this.response={success:1,prev:2,next:3,noHandler:4,fail:5}}var q=a.find;m.prototype={run:function(a){var m=a.which||a.keyCode,l=this.response.noHandler,g=q(this.keyCodeMap,function(a){return-1<a[0].indexOf(m)});g?l=g[1].call(this,m,a):9===m&&(l=this.response[a.shiftKey?"prev":"next"]);
return l}};return m});r(a,"Accessibility/Utils/EventProvider.js",[a["Core/Globals.js"],a["Core/Utilities.js"]],function(a,h){var m=h.addEvent;h=h.extend;var n=function(){this.eventRemovers=[]};h(n.prototype,{addEvent:function(){var h=m.apply(a,arguments);this.eventRemovers.push(h);return h},removeAddedEvents:function(){this.eventRemovers.forEach(function(a){a()});this.eventRemovers=[]}});return n});r(a,"Accessibility/Utils/DOMElementProvider.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/Utils/HTMLUtilities.js"]],
function(a,h,q){var m=a.win.document;a=h.extend;var p=q.removeElement;q=function(){this.elements=[]};a(q.prototype,{createElement:function(){var a=m.createElement.apply(m,arguments);this.elements.push(a);return a},destroyCreatedElements:function(){this.elements.forEach(function(a){p(a)});this.elements=[]}});return q});r(a,"Accessibility/AccessibilityComponent.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/Utils/HTMLUtilities.js"],a["Accessibility/Utils/ChartUtilities.js"],a["Accessibility/Utils/EventProvider.js"],
a["Accessibility/Utils/DOMElementProvider.js"]],function(a,h,q,n,p,l){function g(){}var m=a.win,k=m.document;a=h.extend;var e=h.fireEvent,d=h.merge,b=q.removeElement,f=q.getFakeMouseEvent,c=n.unhideChartElementFromAT;g.prototype={initBase:function(b){this.chart=b;this.eventProvider=new p;this.domElementProvider=new l;this.keyCodes={left:37,right:39,up:38,down:40,enter:13,space:32,esc:27,tab:9}},addEvent:function(){return this.eventProvider.addEvent.apply(this.eventProvider,arguments)},createElement:function(){return this.domElementProvider.createElement.apply(this.domElementProvider,
arguments)},fireEventOnWrappedOrUnwrappedElement:function(b,c){var d=c.type;k.createEvent&&(b.dispatchEvent||b.fireEvent)?b.dispatchEvent?b.dispatchEvent(c):b.fireEvent(d,c):e(b,d,c)},fakeClickEvent:function(b){if(b){var c=f("click");this.fireEventOnWrappedOrUnwrappedElement(b,c)}},addProxyGroup:function(b){this.createOrUpdateProxyContainer();var c=this.createElement("div");Object.keys(b||{}).forEach(function(d){null!==b[d]&&c.setAttribute(d,b[d])});this.chart.a11yProxyContainer.appendChild(c);return c},
createOrUpdateProxyContainer:function(){var b=this.chart,c=b.renderer.box;b.a11yProxyContainer=b.a11yProxyContainer||this.createProxyContainerElement();c.nextSibling!==b.a11yProxyContainer&&b.container.insertBefore(b.a11yProxyContainer,c.nextSibling)},createProxyContainerElement:function(){var b=k.createElement("div");b.className="highcharts-a11y-proxy-container";return b},createProxyButton:function(b,f,a,e,k){var w=b.element,t=this.createElement("button"),l=d({"aria-label":w.getAttribute("aria-label")},
a);Object.keys(l).forEach(function(b){null!==l[b]&&t.setAttribute(b,l[b])});t.className="highcharts-a11y-proxy-button";k&&this.addEvent(t,"click",k);this.setProxyButtonStyle(t);this.updateProxyButtonPosition(t,e||b);this.proxyMouseEventsForButton(w,t);f.appendChild(t);l["aria-hidden"]||c(this.chart,t);return t},getElementPosition:function(b){var c=b.element;return(b=this.chart.renderTo)&&c&&c.getBoundingClientRect?(c=c.getBoundingClientRect(),b=b.getBoundingClientRect(),{x:c.left-b.left,y:c.top-b.top,
width:c.right-c.left,height:c.bottom-c.top}):{x:0,y:0,width:1,height:1}},setProxyButtonStyle:function(b){d(!0,b.style,{"border-width":0,"background-color":"transparent",cursor:"pointer",outline:"none",opacity:.001,filter:"alpha(opacity=1)","-ms-filter":"progid:DXImageTransform.Microsoft.Alpha(Opacity=1)",zIndex:999,overflow:"hidden",padding:0,margin:0,display:"block",position:"absolute"})},updateProxyButtonPosition:function(b,c){c=this.getElementPosition(c);d(!0,b.style,{width:(c.width||1)+"px",height:(c.height||
1)+"px",left:(c.x||0)+"px",top:(c.y||0)+"px"})},proxyMouseEventsForButton:function(b,c){var d=this;"click touchstart touchend touchcancel touchmove mouseover mouseenter mouseleave mouseout".split(" ").forEach(function(f){var a=0===f.indexOf("touch");d.addEvent(c,f,function(c){var f=a?d.cloneTouchEvent(c):d.cloneMouseEvent(c);b&&d.fireEventOnWrappedOrUnwrappedElement(b,f);c.stopPropagation();c.preventDefault()})})},cloneMouseEvent:function(b){if("function"===typeof m.MouseEvent)return new m.MouseEvent(b.type,
b);if(k.createEvent){var c=k.createEvent("MouseEvent");if(c.initMouseEvent)return c.initMouseEvent(b.type,b.bubbles,b.cancelable,b.view||m,b.detail,b.screenX,b.screenY,b.clientX,b.clientY,b.ctrlKey,b.altKey,b.shiftKey,b.metaKey,b.button,b.relatedTarget),c}return f(b.type)},cloneTouchEvent:function(b){var c=function(b){for(var c=[],d=0;d<b.length;++d){var f=b.item(d);f&&c.push(f)}return c};if("function"===typeof m.TouchEvent)return c=new m.TouchEvent(b.type,{touches:c(b.touches),targetTouches:c(b.targetTouches),
changedTouches:c(b.changedTouches),ctrlKey:b.ctrlKey,shiftKey:b.shiftKey,altKey:b.altKey,metaKey:b.metaKey,bubbles:b.bubbles,cancelable:b.cancelable,composed:b.composed,detail:b.detail,view:b.view}),b.defaultPrevented&&c.preventDefault(),c;c=this.cloneMouseEvent(b);c.touches=b.touches;c.changedTouches=b.changedTouches;c.targetTouches=b.targetTouches;return c},destroyBase:function(){b(this.chart.a11yProxyContainer);this.domElementProvider.destroyCreatedElements();this.eventProvider.removeAddedEvents()}};
a(g.prototype,{init:function(){},getKeyboardNavigation:function(){},onChartUpdate:function(){},onChartRender:function(){},destroy:function(){}});return g});r(a,"Accessibility/KeyboardNavigation.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/Utils/HTMLUtilities.js"],a["Accessibility/Utils/EventProvider.js"]],function(a,h,q,n){function m(d,b){this.init(d,b)}var l=a.doc,g=a.win,x=h.addEvent,k=h.fireEvent,e=q.getElement;x(l,"keydown",function(d){27===(d.which||d.keyCode)&&a.charts&&
a.charts.forEach(function(b){b&&b.dismissPopupContent&&b.dismissPopupContent()})});a.Chart.prototype.dismissPopupContent=function(){var d=this;k(this,"dismissPopupContent",{},function(){d.tooltip&&d.tooltip.hide(0);d.hideExportMenu()})};m.prototype={init:function(d,b){var f=this,c=this.eventProvider=new n;this.chart=d;this.components=b;this.modules=[];this.currentModuleIx=0;this.update();c.addEvent(this.tabindexContainer,"keydown",function(b){return f.onKeydown(b)});c.addEvent(this.tabindexContainer,
"focus",function(b){return f.onFocus(b)});c.addEvent(l,"mouseup",function(){return f.onMouseUp()});c.addEvent(d.renderTo,"mousedown",function(){f.isClickingChart=!0});c.addEvent(d.renderTo,"mouseover",function(){f.pointerIsOverChart=!0});c.addEvent(d.renderTo,"mouseout",function(){f.pointerIsOverChart=!1});this.modules.length&&this.modules[0].init(1)},update:function(d){var b=this.chart.options.accessibility;b=b&&b.keyboardNavigation;var f=this.components;this.updateContainerTabindex();b&&b.enabled&&
d&&d.length?(this.modules=d.reduce(function(b,d){d=f[d].getKeyboardNavigation();return b.concat(d)},[]),this.updateExitAnchor()):(this.modules=[],this.currentModuleIx=0,this.removeExitAnchor())},onFocus:function(d){var b,f=this.chart;d=d.relatedTarget&&f.container.contains(d.relatedTarget);this.isClickingChart||d||(null===(b=this.modules[0])||void 0===b?void 0:b.init(1))},onMouseUp:function(){delete this.isClickingChart;if(!this.keyboardReset&&!this.pointerIsOverChart){var d=this.chart,b=this.modules&&
this.modules[this.currentModuleIx||0];b&&b.terminate&&b.terminate();d.focusElement&&d.focusElement.removeFocusBorder();this.currentModuleIx=0;this.keyboardReset=!0}},onKeydown:function(d){d=d||g.event;var b,f=this.modules&&this.modules.length&&this.modules[this.currentModuleIx];this.keyboardReset=!1;if(f){var c=f.run(d);c===f.response.success?b=!0:c===f.response.prev?b=this.prev():c===f.response.next&&(b=this.next());b&&(d.preventDefault(),d.stopPropagation())}},prev:function(){return this.move(-1)},
next:function(){return this.move(1)},move:function(d){var b=this.modules&&this.modules[this.currentModuleIx];b&&b.terminate&&b.terminate(d);this.chart.focusElement&&this.chart.focusElement.removeFocusBorder();this.currentModuleIx+=d;if(b=this.modules&&this.modules[this.currentModuleIx]){if(b.validate&&!b.validate())return this.move(d);if(b.init)return b.init(d),!0}this.currentModuleIx=0;0<d?(this.exiting=!0,this.exitAnchor.focus()):this.tabindexContainer.focus();return!1},updateExitAnchor:function(){var d=
e("highcharts-end-of-chart-marker-"+this.chart.index);this.removeExitAnchor();d?(this.makeElementAnExitAnchor(d),this.exitAnchor=d):this.createExitAnchor()},updateContainerTabindex:function(){var d=this.chart.options.accessibility;d=d&&d.keyboardNavigation;d=!(d&&!1===d.enabled);var b=this.chart,f=b.container;b.renderTo.hasAttribute("tabindex")&&(f.removeAttribute("tabindex"),f=b.renderTo);this.tabindexContainer=f;var c=f.getAttribute("tabindex");d&&!c?f.setAttribute("tabindex","0"):d||b.container.removeAttribute("tabindex")},
makeElementAnExitAnchor:function(d){var b=this.tabindexContainer.getAttribute("tabindex")||0;d.setAttribute("class","highcharts-exit-anchor");d.setAttribute("tabindex",b);d.setAttribute("aria-hidden",!1);this.addExitAnchorEventsToEl(d)},createExitAnchor:function(){var d=this.chart,b=this.exitAnchor=l.createElement("div");d.renderTo.appendChild(b);this.makeElementAnExitAnchor(b)},removeExitAnchor:function(){this.exitAnchor&&this.exitAnchor.parentNode&&(this.exitAnchor.parentNode.removeChild(this.exitAnchor),
delete this.exitAnchor)},addExitAnchorEventsToEl:function(d){var b=this.chart,f=this;this.eventProvider.addEvent(d,"focus",function(c){c=c||g.event;c.relatedTarget&&b.container.contains(c.relatedTarget)||f.exiting?f.exiting=!1:(f.tabindexContainer.focus(),c.preventDefault(),f.modules&&f.modules.length&&(f.currentModuleIx=f.modules.length-1,(c=f.modules[f.currentModuleIx])&&c.validate&&!c.validate()?f.prev():c&&c.init(-1)))})},destroy:function(){this.removeExitAnchor();this.eventProvider.removeAddedEvents();
this.chart.container.removeAttribute("tabindex")}};return m});r(a,"Accessibility/Components/LegendComponent.js",[a["Core/Globals.js"],a["Core/Legend.js"],a["Core/Utilities.js"],a["Accessibility/AccessibilityComponent.js"],a["Accessibility/KeyboardNavigationHandler.js"],a["Accessibility/Utils/HTMLUtilities.js"]],function(a,h,q,n,p,l){function g(b){var c=b.legend&&b.legend.allItems,d=b.options.legend.accessibility||{};return!(!c||!c.length||b.colorAxis&&b.colorAxis.length||!1===d.enabled)}var m=q.addEvent,
k=q.extend,e=q.find,d=q.fireEvent,b=l.stripHTMLTagsFromString,f=l.removeElement;a.Chart.prototype.highlightLegendItem=function(b){var c=this.legend.allItems,a=this.highlightedLegendItemIx;if(c[b]){c[a]&&d(c[a].legendGroup.element,"mouseout");a=this.legend;var f=a.allItems[b].pageIx,e=a.currentPage;"undefined"!==typeof f&&f+1!==e&&a.scroll(1+f-e);this.setFocusToElement(c[b].legendItem,c[b].a11yProxyElement);d(c[b].legendGroup.element,"mouseover");return!0}return!1};m(h,"afterColorizeItem",function(b){var c=
b.item;this.chart.options.accessibility.enabled&&c&&c.a11yProxyElement&&c.a11yProxyElement.setAttribute("aria-pressed",b.visible?"false":"true")});a=function(){};a.prototype=new n;k(a.prototype,{init:function(){var b=this;this.proxyElementsList=[];this.recreateProxies();this.addEvent(h,"afterScroll",function(){this.chart===b.chart&&(b.updateProxiesPositions(),b.updateLegendItemProxyVisibility(),this.chart.highlightLegendItem(b.highlightedLegendItemIx))});this.addEvent(h,"afterPositionItem",function(c){this.chart===
b.chart&&this.chart.renderer&&b.updateProxyPositionForItem(c.item)})},updateLegendItemProxyVisibility:function(){var b=this.chart.legend,d=b.currentPage||1,a=b.clipHeight||0;(b.allItems||[]).forEach(function(c){var f=c.pageIx||0,e=c._legendItemPos?c._legendItemPos[1]:0,k=c.legendItem?Math.round(c.legendItem.getBBox().height):0;f=e+k-b.pages[f]>a||f!==d-1;c.a11yProxyElement&&(c.a11yProxyElement.style.visibility=f?"hidden":"visible")})},onChartRender:function(){g(this.chart)?this.updateProxiesPositions():
this.removeProxies()},updateProxiesPositions:function(){for(var b=0,d=this.proxyElementsList;b<d.length;b++){var a=d[b];this.updateProxyButtonPosition(a.element,a.posElement)}},updateProxyPositionForItem:function(b){var c=e(this.proxyElementsList,function(c){return c.item===b});c&&this.updateProxyButtonPosition(c.element,c.posElement)},recreateProxies:function(){this.removeProxies();g(this.chart)&&(this.addLegendProxyGroup(),this.proxyLegendItems(),this.updateLegendItemProxyVisibility())},removeProxies:function(){f(this.legendProxyGroup);
this.proxyElementsList=[]},addLegendProxyGroup:function(){var b=this.chart.options.accessibility,d=this.chart.langFormat("accessibility.legend.legendLabel",{});this.legendProxyGroup=this.addProxyGroup({"aria-label":d,role:"all"===b.landmarkVerbosity?"region":null})},proxyLegendItems:function(){var b=this;(this.chart.legend&&this.chart.legend.allItems||[]).forEach(function(c){c.legendItem&&c.legendItem.element&&b.proxyLegendItem(c)})},proxyLegendItem:function(c){if(c.legendItem&&c.legendGroup){var d=
this.chart.langFormat("accessibility.legend.legendItem",{chart:this.chart,itemName:b(c.name)}),a=c.legendGroup.div?c.legendItem:c.legendGroup;c.a11yProxyElement=this.createProxyButton(c.legendItem,this.legendProxyGroup,{tabindex:-1,"aria-pressed":!c.visible,"aria-label":d},a);this.proxyElementsList.push({item:c,element:c.a11yProxyElement,posElement:a})}},getKeyboardNavigation:function(){var b=this.keyCodes,d=this;return new p(this.chart,{keyCodeMap:[[[b.left,b.right,b.up,b.down],function(b){return d.onKbdArrowKey(this,
b)}],[[b.enter,b.space],function(){return d.onKbdClick(this)}]],validate:function(){return d.shouldHaveLegendNavigation()},init:function(b){return d.onKbdNavigationInit(b)}})},onKbdArrowKey:function(b,d){var c=this.keyCodes,a=b.response,f=this.chart,e=f.options.accessibility,k=f.legend.allItems.length;d=d===c.left||d===c.up?-1:1;return f.highlightLegendItem(this.highlightedLegendItemIx+d)?(this.highlightedLegendItemIx+=d,a.success):1<k&&e.keyboardNavigation.wrapAround?(b.init(d),a.success):a[0<d?
"next":"prev"]},onKbdClick:function(b){var c=this.chart.legend.allItems[this.highlightedLegendItemIx];c&&c.a11yProxyElement&&d(c.a11yProxyElement,"click");return b.response.success},shouldHaveLegendNavigation:function(){var b=this.chart,d=b.colorAxis&&b.colorAxis.length,a=(b.options.legend||{}).accessibility||{};return!!(b.legend&&b.legend.allItems&&b.legend.display&&!d&&a.enabled&&a.keyboardNavigation&&a.keyboardNavigation.enabled)},onKbdNavigationInit:function(b){var c=this.chart,d=c.legend.allItems.length-
1;b=0<b?0:d;c.highlightLegendItem(b);this.highlightedLegendItemIx=b}});return a});r(a,"Accessibility/Components/MenuComponent.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/AccessibilityComponent.js"],a["Accessibility/KeyboardNavigationHandler.js"],a["Accessibility/Utils/ChartUtilities.js"],a["Accessibility/Utils/HTMLUtilities.js"]],function(a,h,q,n,p,l){function g(d){return d.exportSVGElements&&d.exportSVGElements[0]}h=h.extend;var m=p.unhideChartElementFromAT,k=l.removeElement,
e=l.getFakeMouseEvent;a.Chart.prototype.showExportMenu=function(){var d=g(this);if(d&&(d=d.element,d.onclick))d.onclick(e("click"))};a.Chart.prototype.hideExportMenu=function(){var d=this.exportDivElements;d&&this.exportContextMenu&&(d.forEach(function(b){if("highcharts-menu-item"===b.className&&b.onmouseout)b.onmouseout(e("mouseout"))}),this.highlightedExportItemIx=0,this.exportContextMenu.hideMenu(),this.container.focus())};a.Chart.prototype.highlightExportItem=function(d){var b=this.exportDivElements&&
this.exportDivElements[d],a=this.exportDivElements&&this.exportDivElements[this.highlightedExportItemIx];if(b&&"LI"===b.tagName&&(!b.children||!b.children.length)){var c=!!(this.renderTo.getElementsByTagName("g")[0]||{}).focus;b.focus&&c&&b.focus();if(a&&a.onmouseout)a.onmouseout(e("mouseout"));if(b.onmouseover)b.onmouseover(e("mouseover"));this.highlightedExportItemIx=d;return!0}return!1};a.Chart.prototype.highlightLastExportItem=function(){var d;if(this.exportDivElements)for(d=this.exportDivElements.length;d--;)if(this.highlightExportItem(d))return!0;
return!1};a=function(){};a.prototype=new q;h(a.prototype,{init:function(){var d=this.chart,b=this;this.addEvent(d,"exportMenuShown",function(){b.onMenuShown()});this.addEvent(d,"exportMenuHidden",function(){b.onMenuHidden()})},onMenuHidden:function(){var d=this.chart.exportContextMenu;d&&d.setAttribute("aria-hidden","true");this.isExportMenuShown=!1;this.setExportButtonExpandedState("false")},onMenuShown:function(){var d=this.chart,b=d.exportContextMenu;b&&(this.addAccessibleContextMenuAttribs(),
m(d,b));this.isExportMenuShown=!0;this.setExportButtonExpandedState("true")},setExportButtonExpandedState:function(d){var b=this.exportButtonProxy;b&&b.setAttribute("aria-expanded",d)},onChartRender:function(){var d=this.chart,b=d.options.accessibility;k(this.exportProxyGroup);var a=d.options.exporting,c=g(d);a&&!1!==a.enabled&&a.accessibility&&a.accessibility.enabled&&c&&c.element&&(this.exportProxyGroup=this.addProxyGroup("all"===b.landmarkVerbosity?{"aria-label":d.langFormat("accessibility.exporting.exportRegionLabel",
{chart:d}),role:"region"}:{}),b=g(this.chart),this.exportButtonProxy=this.createProxyButton(b,this.exportProxyGroup,{"aria-label":d.langFormat("accessibility.exporting.menuButtonLabel",{chart:d}),"aria-expanded":"false"}))},addAccessibleContextMenuAttribs:function(){var d=this.chart,b=d.exportDivElements;b&&b.length&&(b.forEach(function(b){"LI"!==b.tagName||b.children&&b.children.length?b.setAttribute("aria-hidden","true"):b.setAttribute("tabindex",-1)}),b=b[0].parentNode,b.removeAttribute("aria-hidden"),
b.setAttribute("aria-label",d.langFormat("accessibility.exporting.chartMenuLabel",{chart:d})))},getKeyboardNavigation:function(){var d=this.keyCodes,b=this.chart,a=this;return new n(b,{keyCodeMap:[[[d.left,d.up],function(){return a.onKbdPrevious(this)}],[[d.right,d.down],function(){return a.onKbdNext(this)}],[[d.enter,d.space],function(){return a.onKbdClick(this)}]],validate:function(){return b.exportChart&&!1!==b.options.exporting.enabled&&!1!==b.options.exporting.accessibility.enabled},init:function(){var c=
a.exportButtonProxy,d=b.exportingGroup;d&&c&&b.setFocusToElement(d,c)},terminate:function(){b.hideExportMenu()}})},onKbdPrevious:function(d){var b=this.chart,a=b.options.accessibility;d=d.response;for(var c=b.highlightedExportItemIx||0;c--;)if(b.highlightExportItem(c))return d.success;return a.keyboardNavigation.wrapAround?(b.highlightLastExportItem(),d.success):d.prev},onKbdNext:function(d){var b=this.chart,a=b.options.accessibility;d=d.response;for(var c=(b.highlightedExportItemIx||0)+1;c<b.exportDivElements.length;++c)if(b.highlightExportItem(c))return d.success;
return a.keyboardNavigation.wrapAround?(b.highlightExportItem(0),d.success):d.next},onKbdClick:function(d){var b=this.chart,a=b.exportDivElements[b.highlightedExportItemIx],c=g(b).element;this.isExportMenuShown?this.fakeClickEvent(a):(this.fakeClickEvent(c),b.highlightExportItem(0));return d.response.success}});return a});r(a,"Accessibility/Components/SeriesComponent/SeriesKeyboardNavigation.js",[a["Core/Chart/Chart.js"],a["Core/Globals.js"],a["Core/Series/Point.js"],a["Core/Utilities.js"],a["Accessibility/KeyboardNavigationHandler.js"],
a["Accessibility/Utils/EventProvider.js"],a["Accessibility/Utils/ChartUtilities.js"]],function(a,h,q,n,p,l,g){function m(b){var c=b.index,d=b.series.points,a=d.length;if(d[c]!==b)for(;a--;){if(d[a]===b)return a}else return c}function k(b){var c=b.chart.options.accessibility.keyboardNavigation.seriesNavigation,d=b.options.accessibility||{},a=d.keyboardNavigation;return a&&!1===a.enabled||!1===d.enabled||!1===b.options.enableMouseTracking||!b.visible||c.pointNavigationEnabledThreshold&&c.pointNavigationEnabledThreshold<=
b.points.length}function e(b){var c=b.series.chart.options.accessibility;return b.isNull&&c.keyboardNavigation.seriesNavigation.skipNullPoints||!1===b.visible||k(b.series)}function d(b,d,a,e){var f=Infinity,k=d.points.length,l=function(b){return!(c(b.plotX)&&c(b.plotY))};if(!l(b)){for(;k--;){var t=d.points[k];if(!l(t)&&(t=(b.plotX-t.plotX)*(b.plotX-t.plotX)*(a||1)+(b.plotY-t.plotY)*(b.plotY-t.plotY)*(e||1),t<f)){f=t;var g=k}}return c(g)?d.points[g]:void 0}}function b(b){var c=!1;delete b.highlightedPoint;
return c=b.series.reduce(function(b,c){return b||c.highlightFirstValidPoint()},!1)}function f(b,c){this.keyCodes=c;this.chart=b}var c=n.defined;n=n.extend;var w=g.getPointFromXY,A=g.getSeriesFromName,z=g.scrollToPoint;h.Series.prototype.keyboardMoveVertical=!0;["column","pie"].forEach(function(b){h.seriesTypes[b]&&(h.seriesTypes[b].prototype.keyboardMoveVertical=!1)});q.prototype.highlight=function(){var b=this.series.chart;if(this.isNull)b.tooltip&&b.tooltip.hide(0);else this.onMouseOver();z(this);
this.graphic&&b.setFocusToElement(this.graphic);b.highlightedPoint=this;return this};a.prototype.highlightAdjacentPoint=function(b){var c=this.series,d=this.highlightedPoint,a=d&&m(d)||0,f=d&&d.series.points,v=this.series&&this.series[this.series.length-1];v=v&&v.points&&v.points[v.points.length-1];if(!c[0]||!c[0].points)return!1;if(d){if(c=c[d.series.index+(b?1:-1)],a=f[a+(b?1:-1)],!a&&c&&(a=c.points[b?0:c.points.length-1]),!a)return!1}else a=b?c[0].points[0]:v;return e(a)?(c=a.series,k(c)?this.highlightedPoint=
b?c.points[c.points.length-1]:c.points[0]:this.highlightedPoint=a,this.highlightAdjacentPoint(b)):a.highlight()};h.Series.prototype.highlightFirstValidPoint=function(){var b=this.chart.highlightedPoint,c=(b&&b.series)===this?m(b):0;b=this.points;var d=b.length;if(b&&d){for(var a=c;a<d;++a)if(!e(b[a]))return b[a].highlight();for(;0<=c;--c)if(!e(b[c]))return b[c].highlight()}return!1};a.prototype.highlightAdjacentSeries=function(b){var c,a=this.highlightedPoint;var f=(c=this.series&&this.series[this.series.length-
1])&&c.points&&c.points[c.points.length-1];if(!this.highlightedPoint)return c=b?this.series&&this.series[0]:c,(f=b?c&&c.points&&c.points[0]:f)?f.highlight():!1;c=this.series[a.series.index+(b?-1:1)];if(!c)return!1;f=d(a,c,4);if(!f)return!1;if(k(c))return f.highlight(),b=this.highlightAdjacentSeries(b),b?b:(a.highlight(),!1);f.highlight();return f.series.highlightFirstValidPoint()};a.prototype.highlightAdjacentPointVertical=function(b){var a=this.highlightedPoint,d=Infinity,f;if(!c(a.plotX)||!c(a.plotY))return!1;
this.series.forEach(function(l){k(l)||l.points.forEach(function(k){if(c(k.plotY)&&c(k.plotX)&&k!==a){var v=k.plotY-a.plotY,g=Math.abs(k.plotX-a.plotX);g=Math.abs(v)*Math.abs(v)+g*g*4;l.yAxis&&l.yAxis.reversed&&(v*=-1);!(0>=v&&b||0<=v&&!b||5>g||e(k))&&g<d&&(d=g,f=k)}})});return f?f.highlight():!1};n(f.prototype,{init:function(){var c=this,a=this.chart,d=this.eventProvider=new l;d.addEvent(h.Series,"destroy",function(){return c.onSeriesDestroy(this)});d.addEvent(a,"afterDrilldown",function(){b(this);
this.focusElement&&this.focusElement.removeFocusBorder()});d.addEvent(a,"drilldown",function(b){b=b.point;var a=b.series;c.lastDrilledDownPoint={x:b.x,y:b.y,seriesName:a?a.name:""}});d.addEvent(a,"drillupall",function(){setTimeout(function(){c.onDrillupAll()},10)})},onDrillupAll:function(){var b=this.lastDrilledDownPoint,a=this.chart,d=b&&A(a,b.seriesName),f;b&&d&&c(b.x)&&c(b.y)&&(f=w(d,b.x,b.y));a.container&&a.container.focus();f&&f.highlight&&f.highlight();a.focusElement&&a.focusElement.removeFocusBorder()},
getKeyboardNavigationHandler:function(){var b=this,c=this.keyCodes,a=this.chart,d=a.inverted;return new p(a,{keyCodeMap:[[d?[c.up,c.down]:[c.left,c.right],function(c){return b.onKbdSideways(this,c)}],[d?[c.left,c.right]:[c.up,c.down],function(c){return b.onKbdVertical(this,c)}],[[c.enter,c.space],function(){a.highlightedPoint&&a.highlightedPoint.firePointEvent("click");return this.response.success}]],init:function(c){return b.onHandlerInit(this,c)},terminate:function(){return b.onHandlerTerminate()}})},
onKbdSideways:function(b,c){var a=this.keyCodes;return this.attemptHighlightAdjacentPoint(b,c===a.right||c===a.down)},onKbdVertical:function(b,c){var a=this.chart,d=this.keyCodes;c=c===d.down||c===d.right;d=a.options.accessibility.keyboardNavigation.seriesNavigation;if(d.mode&&"serialize"===d.mode)return this.attemptHighlightAdjacentPoint(b,c);a[a.highlightedPoint&&a.highlightedPoint.series.keyboardMoveVertical?"highlightAdjacentPointVertical":"highlightAdjacentSeries"](c);return b.response.success},
onHandlerInit:function(c,a){var d=this.chart;if(0<a)b(d);else{a=d.series.length;for(var f;a--&&!(d.highlightedPoint=d.series[a].points[d.series[a].points.length-1],f=d.series[a].highlightFirstValidPoint()););}return c.response.success},onHandlerTerminate:function(){var b,c,a=this.chart,d=a.highlightedPoint;null===(b=a.tooltip)||void 0===b?void 0:b.hide(0);null===(c=null===d||void 0===d?void 0:d.onMouseOut)||void 0===c?void 0:c.call(d);delete a.highlightedPoint},attemptHighlightAdjacentPoint:function(b,
c){var a=this.chart,d=a.options.accessibility.keyboardNavigation.wrapAround;return a.highlightAdjacentPoint(c)?b.response.success:d?b.init(c?1:-1):b.response[c?"next":"prev"]},onSeriesDestroy:function(b){var c=this.chart;c.highlightedPoint&&c.highlightedPoint.series===b&&(delete c.highlightedPoint,c.focusElement&&c.focusElement.removeFocusBorder())},destroy:function(){this.eventProvider.removeAddedEvents()}});return f});r(a,"Accessibility/Components/AnnotationsA11y.js",[a["Accessibility/Utils/HTMLUtilities.js"]],
function(a){function m(a){return(a.annotations||[]).reduce(function(a,e){var d;!1!==(null===(d=e.options)||void 0===d?void 0:d.visible)&&(a=a.concat(e.labels));return a},[])}function q(a){var k,e,d,b,f=null===(e=null===(k=a.options)||void 0===k?void 0:k.accessibility)||void 0===e?void 0:e.description;return f?f:(null===(b=null===(d=a.graphic)||void 0===d?void 0:d.text)||void 0===b?void 0:b.textStr)||""}function n(a){var k,e,d=null===(e=null===(k=a.options)||void 0===k?void 0:k.accessibility)||void 0===
e?void 0:e.description;if(d)return d;k=a.chart;e=q(a);d=a.points.filter(function(b){return!!b.graphic}).map(function(b){var c,a;if(!(a=null===(c=null===b||void 0===b?void 0:b.accessibility)||void 0===c?void 0:c.valueDescription)){var d,f;a=(null===(f=null===(d=null===b||void 0===b?void 0:b.graphic)||void 0===d?void 0:d.element)||void 0===f?void 0:f.getAttribute("aria-label"))||""}b=(null===b||void 0===b?void 0:b.series.name)||"";return(b?b+", ":"")+"data point "+a}).filter(function(b){return!!b});
var b=d.length;a="accessibility.screenReaderSection.annotations.description"+(1<b?"MultiplePoints":b?"SinglePoint":"NoPoints");e={annotationText:e,numPoints:b,annotationPoint:d[0],additionalAnnotationPoints:d.slice(1)};return k.langFormat(a,e)}function p(a){return m(a).map(function(a){return(a=l(g(n(a))))?"<li>"+a+"</li>":""})}var l=a.escapeStringForHTML,g=a.stripHTMLTagsFromString;return{getAnnotationsInfoHTML:function(a){var k=a.annotations;return k&&k.length?"<ul>"+p(a).join(" ")+"</ul>":""},getAnnotationLabelDescription:n,
getAnnotationListItems:p,getPointAnnotationTexts:function(a){var k=m(a.series.chart).filter(function(e){return-1<e.points.indexOf(a)});return k.length?k.map(function(a){return""+q(a)}):[]}}});r(a,"Accessibility/Components/SeriesComponent/SeriesDescriber.js",[a["Core/Utilities.js"],a["Accessibility/Components/AnnotationsA11y.js"],a["Accessibility/Utils/HTMLUtilities.js"],a["Accessibility/Utils/ChartUtilities.js"],a["Core/Tooltip.js"]],function(a,h,q,n,p){function l(b){var c=b.index;return b.series&&
b.series.data&&D(c)?C(b.series.data,function(b){return!!(b&&"undefined"!==typeof b.index&&b.index>c&&b.graphic&&b.graphic.element)})||null:null}function g(b){var c=b.chart.options.accessibility.series.pointDescriptionEnabledThreshold;return!!(!1!==c&&b.points&&b.points.length>=c)}function m(b){var c=b.options.accessibility||{};return!g(b)&&!c.exposeAsGroupOnly}function k(b){var c=b.chart.options.accessibility.keyboardNavigation.seriesNavigation;return!(!b.points||!(b.points.length<c.pointNavigationEnabledThreshold||
!1===c.pointNavigationEnabledThreshold))}function e(b,c){var a=b.series.chart,d=a.options.accessibility.point||{};b=b.series.tooltipOptions||{};a=a.options.lang;return v(c)?I(c,d.valueDecimals||b.valueDecimals||-1,a.decimalPoint,a.accessibility.thousandsSep||a.thousandsSep):c}function d(b){var c=(b.options.accessibility||{}).description;return c&&b.chart.langFormat("accessibility.series.description",{description:c,series:b})||""}function b(b,c){return b.chart.langFormat("accessibility.series."+c+
"Description",{name:J(b[c]),series:b})}function f(b){var c=b.series,a=c.chart,d=a.options.accessibility.point||{};if(c.xAxis&&c.xAxis.dateTime)return c=p.prototype.getXDateFormat.call({getDateFormat:p.prototype.getDateFormat,chart:a},b,a.options.tooltip,c.xAxis),d=d.dateFormatter&&d.dateFormatter(b)||d.dateFormat||c,a.time.dateFormat(d,b.x,void 0)}function c(b){var c=f(b),a=(b.series.xAxis||{}).categories&&D(b.category)&&(""+b.category).replace("<br/>"," "),d=b.id&&0>b.id.indexOf("highcharts-"),e=
"x, "+b.x;return b.name||c||a||(d?b.id:e)}function w(b,c,a){var d=c||"",f=a||"";return b.series.pointArrayMap.reduce(function(c,a){c+=c.length?", ":"";var k=e(b,y(b[a],b.options[a]));return c+(a+": "+d+k+f)},"")}function A(b){var c=b.series,a=c.chart.options.accessibility.point||{},d=c.tooltipOptions||{},f=a.valuePrefix||d.valuePrefix||"";a=a.valueSuffix||d.valueSuffix||"";d=e(b,b["undefined"!==typeof b.value?"value":"y"]);return b.isNull?c.chart.langFormat("accessibility.series.nullPointValue",{point:b}):
c.pointArrayMap?w(b,f,a):f+d+a}function z(b){var a=b.series,d=a.chart,f=d.options.accessibility.point.valueDescriptionFormat,e=(a=y(a.xAxis&&a.xAxis.options.accessibility&&a.xAxis.options.accessibility.enabled,!d.angular))?c(b):"";b={point:b,index:D(b.index)?b.index+1:"",xDescription:e,value:A(b),separator:a?", ":""};return u(f,b,d)}function t(b){var c=b.series,a=c.chart,d=z(b),f=b.options&&b.options.accessibility&&b.options.accessibility.description;f=f?" "+f:"";c=1<a.series.length&&c.name?" "+c.name+
".":"";a=b.series.chart;var e=H(b),k={point:b,annotations:e};a=e.length?a.langFormat("accessibility.series.pointAnnotationsDescription",k):"";b.accessibility=b.accessibility||{};b.accessibility.valueDescription=d;return d+f+c+(a?" "+a:"")}function r(b){var c=m(b),a=k(b);(c||a)&&b.points.forEach(function(b){var a;if(!(a=b.graphic&&b.graphic.element)&&(a=b.series&&b.series.is("sunburst"),a=b.isNull&&!a)){var d=b.series,f=l(b);d=(a=f&&f.graphic)?a.parentGroup:d.graph||d.group;f=f?{x:y(b.plotX,f.plotX,
0),y:y(b.plotY,f.plotY,0)}:{x:y(b.plotX,0),y:y(b.plotY,0)};f=b.series.chart.renderer.rect(f.x,f.y,1,1);f.attr({"class":"highcharts-a11y-dummy-point",fill:"none",opacity:0,"fill-opacity":0,"stroke-opacity":0});d&&d.element?(b.graphic=f,b.hasDummyGraphic=!0,f.add(d),d.element.insertBefore(f.element,a?a.element:null),a=f.element):a=void 0}a&&(a.setAttribute("tabindex","-1"),a.style.outline="0",c?(f=b.series,d=f.chart.options.accessibility.point||{},f=f.options.accessibility||{},b=F(G(f.pointDescriptionFormatter&&
f.pointDescriptionFormatter(b)||d.descriptionFormatter&&d.descriptionFormatter(b)||t(b))),a.setAttribute("role","img"),a.setAttribute("aria-label",b)):a.setAttribute("aria-hidden",!0))})}function B(a){var c=a.chart,f=c.types||[],e=d(a),k=function(b){return c[b]&&1<c[b].length&&a[b]},l=b(a,"xAxis"),v=b(a,"yAxis"),g={name:a.name||"",ix:a.index+1,numSeries:c.series&&c.series.length,numPoints:a.points&&a.points.length,series:a};f=1<f.length?"Combination":"";return(c.langFormat("accessibility.series.summary."+
a.type+f,g)||c.langFormat("accessibility.series.summary.default"+f,g))+(e?" "+e:"")+(k("yAxis")?" "+v:"")+(k("xAxis")?" "+l:"")}var C=a.find,u=a.format,v=a.isNumber,I=a.numberFormat,y=a.pick,D=a.defined,H=h.getPointAnnotationTexts,F=q.escapeStringForHTML,K=q.reverseChildNodes,G=q.stripHTMLTagsFromString,J=n.getAxisDescription,L=n.getSeriesFirstPointElement,M=n.getSeriesA11yElement,N=n.unhideChartElementFromAT;return{describeSeries:function(b){var a=b.chart,c=L(b),d=M(b),f=a.is3d&&a.is3d();if(d){d.lastChild!==
c||f||K(d);r(b);N(a,d);f=b.chart;a=f.options.chart||{};c=1<f.series.length;f=f.options.accessibility.series.describeSingleSeries;var e=(b.options.accessibility||{}).exposeAsGroupOnly;a.options3d&&a.options3d.enabled&&c||!(c||f||e||g(b))?d.setAttribute("aria-label",""):(a=b.chart.options.accessibility,c=a.landmarkVerbosity,(b.options.accessibility||{}).exposeAsGroupOnly?d.setAttribute("role","img"):"all"===c&&d.setAttribute("role","region"),d.setAttribute("tabindex","-1"),d.style.outline="0",d.setAttribute("aria-label",
F(G(a.series.descriptionFormatter&&a.series.descriptionFormatter(b)||B(b)))))}},defaultPointDescriptionFormatter:t,defaultSeriesDescriptionFormatter:B,getPointA11yTimeDescription:f,getPointXDescription:c,getPointValue:A,getPointValueDescription:z}});r(a,"Accessibility/Utils/Announcer.js",[a["Core/Globals.js"],a["Accessibility/Utils/DOMElementProvider.js"],a["Accessibility/Utils/HTMLUtilities.js"]],function(a,h,q){var m=q.visuallyHideElement;q=function(){function a(a,g){this.chart=a;this.domElementProvider=
new h;this.announceRegion=this.addAnnounceRegion(g)}a.prototype.destroy=function(){this.domElementProvider.destroyCreatedElements()};a.prototype.announce=function(a){var l=this;this.announceRegion.innerHTML=a;this.clearAnnouncementRegionTimer&&clearTimeout(this.clearAnnouncementRegionTimer);this.clearAnnouncementRegionTimer=setTimeout(function(){l.announceRegion.innerHTML="";delete l.clearAnnouncementRegionTimer},1E3)};a.prototype.addAnnounceRegion=function(a){var l=this.chart.renderTo,h=this.domElementProvider.createElement("div");
h.setAttribute("aria-hidden",!1);h.setAttribute("aria-live",a);m(h);l.insertBefore(h,l.firstChild);return h};return a}();return a.Announcer=q});r(a,"Accessibility/Components/SeriesComponent/NewDataAnnouncer.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/Utils/ChartUtilities.js"],a["Accessibility/Components/SeriesComponent/SeriesDescriber.js"],a["Accessibility/Utils/Announcer.js"],a["Accessibility/Utils/EventProvider.js"]],function(a,h,q,n,p,l){function g(b){var a=b.series.data.filter(function(a){return b.x===
a.x&&b.y===a.y});return 1===a.length?a[0]:b}function m(b,a){var c=(b||[]).concat(a||[]).reduce(function(b,a){b[a.name+a.index]=a;return b},{});return Object.keys(c).map(function(b){return c[b]})}var k=h.extend,e=h.defined,d=q.getChartTitle,b=n.defaultPointDescriptionFormatter,f=n.defaultSeriesDescriptionFormatter;h=function(b){this.chart=b};k(h.prototype,{init:function(){var b=this.chart,a=b.options.accessibility.announceNewData.interruptUser?"assertive":"polite";this.lastAnnouncementTime=0;this.dirty=
{allSeries:{}};this.eventProvider=new l;this.announcer=new p(b,a);this.addEventListeners()},destroy:function(){this.eventProvider.removeAddedEvents();this.announcer.destroy()},addEventListeners:function(){var b=this,d=this.chart,f=this.eventProvider;f.addEvent(d,"afterDrilldown",function(){b.lastAnnouncementTime=0});f.addEvent(a.Series,"updatedData",function(){b.onSeriesUpdatedData(this)});f.addEvent(d,"afterAddSeries",function(a){b.onSeriesAdded(a.series)});f.addEvent(a.Series,"addPoint",function(a){b.onPointAdded(a.point)});
f.addEvent(d,"redraw",function(){b.announceDirtyData()})},onSeriesUpdatedData:function(b){var a=this.chart;b.chart===a&&a.options.accessibility.announceNewData.enabled&&(this.dirty.hasDirty=!0,this.dirty.allSeries[b.name+b.index]=b)},onSeriesAdded:function(b){this.chart.options.accessibility.announceNewData.enabled&&(this.dirty.hasDirty=!0,this.dirty.allSeries[b.name+b.index]=b,this.dirty.newSeries=e(this.dirty.newSeries)?void 0:b)},onPointAdded:function(b){var a=b.series.chart;this.chart===a&&a.options.accessibility.announceNewData.enabled&&
(this.dirty.newPoint=e(this.dirty.newPoint)?void 0:b)},announceDirtyData:function(){var b=this;if(this.chart.options.accessibility.announceNewData&&this.dirty.hasDirty){var a=this.dirty.newPoint;a&&(a=g(a));this.queueAnnouncement(Object.keys(this.dirty.allSeries).map(function(a){return b.dirty.allSeries[a]}),this.dirty.newSeries,a);this.dirty={allSeries:{}}}},queueAnnouncement:function(b,a,d){var c=this,f=this.chart.options.accessibility.announceNewData;if(f.enabled){var e=+new Date;f=Math.max(0,
f.minAnnounceInterval-(e-this.lastAnnouncementTime));b=m(this.queuedAnnouncement&&this.queuedAnnouncement.series,b);if(a=this.buildAnnouncementMessage(b,a,d))this.queuedAnnouncement&&clearTimeout(this.queuedAnnouncementTimer),this.queuedAnnouncement={time:e,message:a,series:b},this.queuedAnnouncementTimer=setTimeout(function(){c&&c.announcer&&(c.lastAnnouncementTime=+new Date,c.announcer.announce(c.queuedAnnouncement.message),delete c.queuedAnnouncement,delete c.queuedAnnouncementTimer)},f)}},buildAnnouncementMessage:function(c,
e,k){var l=this.chart,g=l.options.accessibility.announceNewData;if(g.announcementFormatter&&(c=g.announcementFormatter(c,e,k),!1!==c))return c.length?c:null;c=a.charts&&1<a.charts.length?"Multiple":"Single";c=e?"newSeriesAnnounce"+c:k?"newPointAnnounce"+c:"newDataAnnounce";g=d(l);return l.langFormat("accessibility.announceNewData."+c,{chartTitle:g,seriesDesc:e?f(e):null,pointDesc:k?b(k):null,point:k,series:e})}});return h});r(a,"Accessibility/Components/SeriesComponent/ForcedMarkers.js",[a["Core/Globals.js"],
a["Core/Utilities.js"]],function(a,h){function m(a){p(!0,a,{marker:{enabled:!0,states:{normal:{opacity:0}}}})}var n=h.addEvent,p=h.merge;return function(){n(a.Series,"render",function(){var a=this.options,g=!1!==(this.options.accessibility&&this.options.accessibility.enabled);if(g=this.chart.options.accessibility.enabled&&g)g=this.chart.options.accessibility,g=this.points.length<g.series.pointDescriptionEnabledThreshold||!1===g.series.pointDescriptionEnabledThreshold;if(g){if(a.marker&&!1===a.marker.enabled&&
(this.a11yMarkersForced=!0,m(this.options)),this._hasPointMarkers&&this.points&&this.points.length)for(a=this.points.length;a--;){g=this.points[a];var h=g.options;delete g.hasForcedA11yMarker;h.marker&&(h.marker.enabled?(p(!0,h.marker,{states:{normal:{opacity:h.marker.states&&h.marker.states.normal&&h.marker.states.normal.opacity||1}}}),g.hasForcedA11yMarker=!1):(m(h),g.hasForcedA11yMarker=!0))}}else this.a11yMarkersForced&&(delete this.a11yMarkersForced,(a=this.resetA11yMarkerOptions)&&p(!0,this.options,
{marker:{enabled:a.enabled,states:{normal:{opacity:a.states&&a.states.normal&&a.states.normal.opacity}}}}))});n(a.Series,"afterSetOptions",function(a){this.resetA11yMarkerOptions=p(a.options.marker||{},this.userOptions.marker||{})});n(a.Series,"afterRender",function(){if(this.chart.styledMode){if(this.markerGroup)this.markerGroup[this.a11yMarkersForced?"addClass":"removeClass"]("highcharts-a11y-markers-hidden");this._hasPointMarkers&&this.points&&this.points.length&&this.points.forEach(function(a){a.graphic&&
(a.graphic[a.hasForcedA11yMarker?"addClass":"removeClass"]("highcharts-a11y-marker-hidden"),a.graphic[!1===a.hasForcedA11yMarker?"addClass":"removeClass"]("highcharts-a11y-marker-visible"))})}})}});r(a,"Accessibility/Components/SeriesComponent/SeriesComponent.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/AccessibilityComponent.js"],a["Accessibility/Components/SeriesComponent/SeriesKeyboardNavigation.js"],a["Accessibility/Components/SeriesComponent/NewDataAnnouncer.js"],a["Accessibility/Components/SeriesComponent/ForcedMarkers.js"],
a["Accessibility/Utils/ChartUtilities.js"],a["Accessibility/Components/SeriesComponent/SeriesDescriber.js"],a["Core/Tooltip.js"]],function(a,h,q,n,p,l,g,x,k){h=h.extend;var e=g.hideSeriesFromAT,d=x.describeSeries;a.SeriesAccessibilityDescriber=x;l();a=function(){};a.prototype=new q;h(a.prototype,{init:function(){this.newDataAnnouncer=new p(this.chart);this.newDataAnnouncer.init();this.keyboardNavigation=new n(this.chart,this.keyCodes);this.keyboardNavigation.init();this.hideTooltipFromATWhenShown();
this.hideSeriesLabelsFromATWhenShown()},hideTooltipFromATWhenShown:function(){var b=this;this.addEvent(k,"refresh",function(){this.chart===b.chart&&this.label&&this.label.element&&this.label.element.setAttribute("aria-hidden",!0)})},hideSeriesLabelsFromATWhenShown:function(){this.addEvent(this.chart,"afterDrawSeriesLabels",function(){this.series.forEach(function(b){b.labelBySeries&&b.labelBySeries.attr("aria-hidden",!0)})})},onChartRender:function(){this.chart.series.forEach(function(b){!1!==(b.options.accessibility&&
b.options.accessibility.enabled)&&b.visible?d(b):e(b)})},getKeyboardNavigation:function(){return this.keyboardNavigation.getKeyboardNavigationHandler()},destroy:function(){this.newDataAnnouncer.destroy();this.keyboardNavigation.destroy()}});return a});r(a,"Accessibility/Components/ZoomComponent.js",[a["Core/Globals.js"],a["Core/Utilities.js"],a["Accessibility/AccessibilityComponent.js"],a["Accessibility/KeyboardNavigationHandler.js"],a["Accessibility/Utils/ChartUtilities.js"],a["Accessibility/Utils/HTMLUtilities.js"]],
function(a,h,q,n,p,l){var g=h.extend,m=h.pick,k=p.unhideChartElementFromAT,e=l.setElAttrs,d=l.removeElement;a.Axis.prototype.panStep=function(b,a){var c=a||3;a=this.getExtremes();var d=(a.max-a.min)/c*b;c=a.max+d;d=a.min+d;var f=c-d;0>b&&d<a.dataMin?(d=a.dataMin,c=d+f):0<b&&c>a.dataMax&&(c=a.dataMax,d=c-f);this.setExtremes(d,c)};a=function(){};a.prototype=new q;g(a.prototype,{init:function(){var b=this,a=this.chart;["afterShowResetZoom","afterDrilldown","drillupall"].forEach(function(c){b.addEvent(a,
c,function(){b.updateProxyOverlays()})})},onChartUpdate:function(){var b=this.chart,a=this;b.mapNavButtons&&b.mapNavButtons.forEach(function(c,d){k(b,c.element);a.setMapNavButtonAttrs(c.element,"accessibility.zoom.mapZoom"+(d?"Out":"In"))})},setMapNavButtonAttrs:function(b,a){var c=this.chart;a=c.langFormat(a,{chart:c});e(b,{tabindex:-1,role:"button","aria-label":a})},onChartRender:function(){this.updateProxyOverlays()},updateProxyOverlays:function(){var b=this.chart;d(this.drillUpProxyGroup);d(this.resetZoomProxyGroup);
b.resetZoomButton&&this.recreateProxyButtonAndGroup(b.resetZoomButton,"resetZoomProxyButton","resetZoomProxyGroup",b.langFormat("accessibility.zoom.resetZoomButton",{chart:b}));b.drillUpButton&&this.recreateProxyButtonAndGroup(b.drillUpButton,"drillUpProxyButton","drillUpProxyGroup",b.langFormat("accessibility.drillUpButton",{chart:b,buttonText:b.getDrilldownBackText()}))},recreateProxyButtonAndGroup:function(b,a,c,e){d(this[c]);this[c]=this.addProxyGroup();this[a]=this.createProxyButton(b,this[c],
{"aria-label":e,tabindex:-1})},getMapZoomNavigation:function(){var b=this.keyCodes,a=this.chart,c=this;return new n(a,{keyCodeMap:[[[b.up,b.down,b.left,b.right],function(b){return c.onMapKbdArrow(this,b)}],[[b.tab],function(b,a){return c.onMapKbdTab(this,a)}],[[b.space,b.enter],function(){return c.onMapKbdClick(this)}]],validate:function(){return!!(a.mapZoom&&a.mapNavButtons&&a.mapNavButtons.length)},init:function(b){return c.onMapNavInit(b)}})},onMapKbdArrow:function(b,a){var c=this.keyCodes;this.chart[a===
c.up||a===c.down?"yAxis":"xAxis"][0].panStep(a===c.left||a===c.up?-1:1);return b.response.success},onMapKbdTab:function(b,a){var c=this.chart;b=b.response;var d=(a=a.shiftKey)&&!this.focusedMapNavButtonIx||!a&&this.focusedMapNavButtonIx;c.mapNavButtons[this.focusedMapNavButtonIx].setState(0);if(d)return c.mapZoom(),b[a?"prev":"next"];this.focusedMapNavButtonIx+=a?-1:1;a=c.mapNavButtons[this.focusedMapNavButtonIx];c.setFocusToElement(a.box,a.element);a.setState(2);return b.success},onMapKbdClick:function(b){this.fakeClickEvent(this.chart.mapNavButtons[this.focusedMapNavButtonIx].element);
return b.response.success},onMapNavInit:function(b){var a=this.chart,c=a.mapNavButtons[0],d=a.mapNavButtons[1];c=0<b?c:d;a.setFocusToElement(c.box,c.element);c.setState(2);this.focusedMapNavButtonIx=0<b?0:1},simpleButtonNavigation:function(b,a,c){var d=this.keyCodes,e=this,f=this.chart;return new n(f,{keyCodeMap:[[[d.tab,d.up,d.down,d.left,d.right],function(b,a){return this.response[b===d.tab&&a.shiftKey||b===d.left||b===d.up?"prev":"next"]}],[[d.space,d.enter],function(){var b=c(this,f);return m(b,
this.response.success)}]],validate:function(){return f[b]&&f[b].box&&e[a]},init:function(){f.setFocusToElement(f[b].box,e[a])}})},getKeyboardNavigation:function(){return[this.simpleButtonNavigation("resetZoomButton","resetZoomProxyButton",function(b,a){a.zoomOut()}),this.simpleButtonNavigation("drillUpButton","drillUpProxyButton",function(b,a){a.drillUp();return b.response.prev}),this.getMapZoomNavigation()]}});return a});r(a,"Accessibility/Components/RangeSelectorComponent.js",[a["Core/Globals.js"],
a["Core/Utilities.js"],a["Accessibility/AccessibilityComponent.js"],a["Accessibility/KeyboardNavigationHandler.js"],a["Accessibility/Utils/ChartUtilities.js"],a["Accessibility/Utils/HTMLUtilities.js"]],function(a,h,q,n,p,l){h=h.extend;var g=p.unhideChartElementFromAT,m=l.setElAttrs;a.Chart.prototype.highlightRangeSelectorButton=function(a){var e=this.rangeSelector.buttons,d=this.highlightedRangeSelectorItemIx;"undefined"!==typeof d&&e[d]&&e[d].setState(this.oldRangeSelectorItemState||0);this.highlightedRangeSelectorItemIx=
a;return e[a]?(this.setFocusToElement(e[a].box,e[a].element),this.oldRangeSelectorItemState=e[a].state,e[a].setState(2),!0):!1};a=function(){};a.prototype=new q;h(a.prototype,{onChartUpdate:function(){var a=this.chart,e=this,d=a.rangeSelector;d&&(d.buttons&&d.buttons.length&&d.buttons.forEach(function(b){g(a,b.element);e.setRangeButtonAttrs(b)}),d.maxInput&&d.minInput&&["minInput","maxInput"].forEach(function(b,f){if(b=d[b])g(a,b),e.setRangeInputAttrs(b,"accessibility.rangeSelector."+(f?"max":"min")+
"InputLabel")}))},setRangeButtonAttrs:function(a){var e=this.chart;e=e.langForm